Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed in the present invention are a climbing or rock climbing training simulation apparatus and a control method, inventively provided with support parts capable of moving to change position; thus, for four-limb climbing, four support parts can be used, arranged on a bracket or a wall that is vertical or at a certain angle of inclination; when needing to climb upward, a person generally first releases one hand in order to stretch the body so that the hand can climb upward to a higher support point, then releases the foot on the opposite side, the foot searching upward for a higher support point, then releases the other hand to climb upward to a higher support point, and then releases the foot on the other side, the foot searching upward for a higher support point, and repeats; in order to achieve the objective of the present invention, each support part can move to change position, and therefore when a person is climbing, the relative position between the support parts can be adjusted according to requirements or settings.
A: An improved flipper comprises an outsole (1), a midsole (2) and a vamp (3) that are fixedly connected in sequence from the bottom to the top. The shape and the size of the outsole (1) match the shape and the size of a foot of a human body. The midsole (2) comprises a supporting portion (21) matching the outsole (1) in shape and size, and comprises a web-shaped water webbing portion (22) that extends outwards along the edge of a foot sole part of the supporting portion (21). The supporting portion (21) of the midsole (2) and the vamp (3) form an accommodating chamber accommodating the whole foot part of the human body. The web-shaped water webbing portion (22) comprises a first water webbing portion (221) and a second water webbing portion (222). One end of the first water webbing portion (221) is fixedly connected to the edge of the foot sole part of the supporting portion (21), and the other end of the first water webbing portion (221) is connected to one end of the second water webbing portion (222) by means of at least one foldable supporting mechanism (7).
B: Disclosed is an obstacle support, comprising multiple support bases. Each two adjacent support bases are connected to each other by means of a lamp assembly. The lamp assembly can rotate arbitrarily in an axial direction of the support base. Each support base is provided with a mechanical touch switch or an infrared sensing switch and a speaker. Each lamp assembly is suspended on two adjacent support bases. When the mechanical touch switch or the infrared sensing switch senses an object, the lamp assembly is turned off. The angle of the product is adjustable, and the product can be adjusted to form different shapes and adapted to players of various levels. The product can provide different training shapes and degrees of difficulty according to requirements. The product can be disassembled, occupies little space, is lightweight and portable, provides multiple training modes, increases the fun of training, prevents boredom with training, has timekeeping and scoring functions, quantizes training data, allows data comparison, has a small footprint, readily provides indoor and outdoor training, and can improve the level of players in a precise manner by means of the infrared sensing switch or the mechanical touch switch thereof.
C: A device for eliminating branch obstacles for electric power maintenance, comprising a main support rod (1); one end of the main support rod (1) is connected to an extension rod (4), and a fixing mechanism (2) is clamped to the other end of the main support rod (1) near the extension rod (4); one end of the extension rod (4) is connected to a connecting rod (5), one end of the connecting rod (5) is connected to a case (12), and one side surface of the case (12) is connected to a cutting blade (6); a lower end of the fixing mechanism (2) is connected to a supporting mechanism (3), and a moving seat (9) is provided at the bottom of the supporting mechanism (3). Therefore, the length is easily adjusted, while the fixing mechanism and the supporting mechanism are used to support the device instead of using a human body as a support point during traditional work so as to eliminate branches at high altitudes. In addition, wireless control is used, thus avoiding the problem in which the length of a device for eliminating branch obstacles is restricted due to traditional wired control, and branches at higher positions cannot be cut off. Furthermore, manpower is not required for carrying, moving is convenient, and operation is easy.
D: A support member (200), comprising a first base (210), a plurality of supporting rods (220) arranged at intervals along the circumferential direction of the first base (210), a plurality of connecting rods (230) arranged corresponding to the plurality of supporting rods (220), and an adjusting rod (240) movably passing through the first base (210). The proximal end of each supporting rod (220) is relatively gathered at the first base (210), and an anchor (300) is correspondingly arranged at the distal end of each supporting rod (220). One end of each connecting rod (230) is rotatably connected to the corresponding supporting rod (220), and the adjusting rod (240) is rotatably connected to the opposite other end of each connecting rod (230). The first base (210), the plurality of supporting rods (220), the plurality of connecting rods (230), and the adjusting rod (240) of the support member (200) form a linkage structure, so that axial movement of the adjusting rod (240) can drive each connecting rod (230) to open the corresponding supporting rod (220), the plurality of supporting rods (220) are opened in an umbrella shape with respect to the adjusting rod (240), and when the location of the adjusting rod (240) is relatively fixed, the location of each supporting rod (220) is also fixed, thereby providing stable supporting force for the plurality of anchors (300) arranged at the distal end of each supporting rod (220). The present application also provides an annuloplasty device (1000) comprising the support member (200).
Answer: B