Pin shaft of balancing weight of body builder

Abstract

The utility model provides a hinge pin of a balancing weight of fitness equipment, which relates to the technical field of fitness equipment and comprises a hinge pin body, a first groove is arranged on the outer wall of one end of the hinge pin body, a pressing plate is rotatably connected onto the first groove, and an inner tube is slidably connected into one end of the hinge pin body provided with the first groove. A button is installed on the outer wall of the other end of the pin shaft body, a second groove is formed in the other end of the pin shaft body, a spring is installed on the second groove, a locking pin is installed at the other end of the spring, and the pin shaft body is combined with the inner pipe. A user can adjust the length of the pin shaft according to needs to adapt to balancing weights of different numbers and sizes, universality and adaptability are improved, the rack and the gear in the pin shaft body are designed to be meshed with the rack of the inner pipe, the inner pipe is effectively prevented from sliding or rotating in the using process, and locking stability and durability are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a pin for a weight block of a fitness equipment. Background Technology

[0002] The pins of the weight blocks in fitness equipment are important components used to fix or adjust the weight blocks. The pins connect multiple weight blocks together safely and securely, preventing the weight blocks from shifting or loosening during exercise.

[0003] Traditional fitness equipment weight pins are usually simple straight rod designs, relying on manual insertion and removal to adjust the weights. However, manual insertion and removal require considerable force, resulting in a poor user experience. Furthermore, the length of the pin is fixed and cannot accommodate various weights. Therefore, we propose a new type of weight pin for fitness equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Traditional fitness equipment counterweight pins are usually simple straight rod designs, relying on manual insertion and removal to adjust the counterweights. However, manual insertion and removal require considerable force, resulting in a poor user experience. Furthermore, the length of the pin is fixed and cannot accommodate a variety of counterweights.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pin for a weight block in a fitness device includes a pin body. A first groove is formed on the outer wall of one end of the pin body, and a pressing plate is rotatably connected to the first groove. An inner tube is slidably connected to the end of the pin body with the first groove. A button is installed on the outer wall of the other end of the pin body. A second groove is formed on the other end of the pin body, and a spring is installed on the second groove. A locking pin is installed on the other end of the spring.

[0007] Furthermore, a positioning post is provided at the bottom end of the pressing plate, and several positioning holes are evenly arranged on the outer wall of the inner tube, with the size of the positioning post matching the positioning hole.

[0008] Furthermore, the button is connected to an inner rod, which passes through the outer wall of the pin body and is connected to a locking pin.

[0009] Furthermore, the diameter of the main body of the pin matches the locking hole on the counterweight, and the locking hole is provided with a guide groove to facilitate automatic alignment of the locking pin.

[0010] Furthermore, the end of the locking pin 106 protrudes from the outer wall of the second groove 104.

[0011] Furthermore, a first rack is provided on both sides of the inner wall of the main body of the pin shaft, and a second rack is provided on both sides of the outer wall of the inner tube. A gear is provided between the second rack and the first rack, and the gear meshes with the first rack and the second rack.

[0012] Furthermore, limit blocks are provided on both sides of the inner wall of the pin body near the first groove.

[0013] Furthermore, a telescopic sleeve is installed inside the spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The pin shaft body is combined with the inner tube. Through the design of sliding connection and several positioning holes, the user can adjust the length of the pin shaft as needed to adapt to different numbers and sizes of counterweights, which improves versatility and adaptability. The rack and gear in the pin shaft body meshes with the rack and pinion in the inner tube, which effectively prevents the inner tube from sliding or rotating during use, ensuring the stability and durability of the lock.

[0016] 2. The locking pin design allows for quick insertion and removal of the counterweight without rotation or complicated operations. Once locked, the pin will not fall off during use, ensuring safety and stability. The guide groove inside the counterweight's locking hole, combined with the locking pin, ensures that the pin automatically aligns upon insertion and achieves quick locking, avoiding misalignment or loosening issues that may occur during traditional manual insertion and removal. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the pin shaft of a fitness equipment counterweight provided by this utility model;

[0018] Figure 2 A schematic diagram of a locking pin structure for a weight block of a fitness device provided by this utility model.

[0019] Figure 3 A schematic diagram of the pressing plate structure of the pin shaft of a fitness equipment counterweight provided by this utility model;

[0020] Figure 4 This invention provides a schematic diagram of the internal anatomical plane of the pin of a fitness equipment counterweight.

[0021] Legend: 1. Pin body; 2. Inner tube; 101. First groove; 102. Press plate; 103. Button; 104. Second groove; 105. Spring; 106. Locking pin; 107. Positioning pin; 108. Inner rod; 109. First rack; 201. Positioning hole; 202. Second rack; 203. Gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Example 1

[0027] like Figure 1-4As shown, this utility model provides a technical solution: a pin for a weight block in a fitness machine, including a pin body 1. A first groove 101 is formed on the outer wall of one end of the pin body 1. A pressing plate 102 is rotatably connected to the first groove 101. An inner tube 2 is slidably connected inside the end of the pin body 1 with the first groove 101. The length of the pin can be flexibly adjusted by sliding the inner tube 2, which can adapt to weight blocks of different sizes and quantities, thus expanding the applicability of the pin. A pressing plate 102 is installed on the outer wall of the other end of the pin body 1. Button 103, the other end of the pin body 1 has a second groove 104, a spring 105 is installed on the second groove 104, and a locking pin 106 is installed on the other end of the spring 105. When the user inserts the pin body 1 into the lock hole of the counterweight, the locking pin 106 is pressed back into the pin body 1 under the action of the guide groove. After the pin body 1 is fully inserted, the spring 105 pushes the locking pin 106 to pop out and engage with the lock hole of the counterweight to complete the automatic locking. When the user presses button 103, the locking pin 106 retracts into the pin and the lock is released.

[0028] Example 2

[0029] like Figure 1-4 As shown, a positioning post 107 is provided at the bottom of the pressing plate 102, and several positioning holes 201 are evenly arranged on the outer wall of the inner tube 2. The size of the positioning post 107 matches the positioning hole 201. Through the design of the pressing plate 102 and the positioning post 107, the positioning post 107 is embedded in the target positioning hole 201 to complete the length adjustment and fixation. The user can easily press to realize the quick locking and unlocking of the pin body 1 without the need for strenuous insertion and removal, which greatly improves the user experience.

[0030] Button 103 is connected to inner rod 108. Inner rod 108 passes through the outer wall of pin body 1 and is connected to locking pin 106. Button 103 is connected to locking pin 106 through inner rod 108. Pressing button 103 will retract locking pin 106. Spring 105 is equipped with telescopic sleeve to prevent spring 105 and locking pin 106 from moving excessively, and also to increase the stability of the structure.

[0031] The diameter of the pin body 1 matches the locking hole on the counterweight, and the locking hole is provided with a guide groove to facilitate the automatic alignment of the locking pin 106. The end of the locking pin 106 protrudes from the outer wall of the second groove 104 so as to be inserted into the locking hole of the counterweight.

[0032] The inner wall of the pin body 1 is provided with a first rack 109 on both sides, and the outer wall of the inner tube 2 is provided with a second rack 202 on both sides. A gear 203 is provided between the second rack 202 and the first rack 109. The gear 203 meshes with the first rack 109 and the second rack 202. The meshing design of the first rack 109, the second rack 202 and the gear 203 can effectively prevent slippage or loosening during use. Limiting blocks are provided on both sides of the inner wall of the pin body 1 near the first groove 101. When the inner tube 2 slides, the gear 203 moves on the second rack 202 and the first rack 109. The limiting blocks prevent the inner tube 2 from being pulled out when the pin body 1 slides.

[0033] The working process of this utility model is as follows: When using the pin of a fitness equipment counterweight, first confirm whether the guide groove inside the lock hole of the counterweight is unobstructed to ensure that the pin can be inserted smoothly. Then press the pressing plate 102 on the main body 1 of the pin to separate the positioning post 107 from the positioning hole 201. Manually slide the inner tube 2 to adjust the length of the pin according to the required number of counterweights. Release the pressing plate 102 to ensure that the positioning post 107 is accurately embedded in the target positioning hole 201 to complete the length fixation.

[0034] Next, align the adjusted length of the pin with the lock hole on the counterweight, so that the locking pin 106 is aligned with the guide groove inside the lock hole. Press the button 103, and the spring force of the spring 105 pushes the locking pin 106 out and makes contact with the inside of the lock hole to complete the locking. Insert the pin body 1 into the lock hole of the counterweight, ensuring that the pin passes through all the counterweights that need to be fixed.

[0035] When it is necessary to replace the counterweight, button 103, through inner rod 108, drives locking pin 106 to retract into the pin body 1, pulls the pin out of the counterweight, and then repeats the above process as needed to adjust the pin length or reinsert the counterweight.

[0036] After use, shorten the pin to its shortest length and store it in the dedicated accessory storage area for the fitness equipment for future use.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pin for a weight block in a fitness machine, comprising a pin body (1), characterized in that: A first groove (101) is provided on the outer wall of one end of the pin body (1). A pressing plate (102) is rotatably connected to the first groove (101). An inner tube (2) is slidably connected to the end of the pin body (1) where the first groove (101) is provided. A button (103) is installed on the outer wall of the other end of the pin body (1). A second groove (104) is provided on the other end of the pin body (1). A spring (105) is installed on the second groove (104). A locking pin (106) is installed on the other end of the spring (105).

2. The pin of the weight block of a fitness device according to claim 1, characterized in that: The bottom end of the pressing plate (102) is provided with a positioning post (107), and a number of positioning holes (201) are evenly arranged on the outer wall of the inner tube (2). The size of the positioning post (107) matches the positioning hole (201).

3. The pin of a weight block for a fitness device according to claim 2, characterized in that: The button (103) is connected to an inner rod (108), which passes through the outer wall of the pin body (1) and is connected to a locking pin (106).

4. The pin of a weight block for a fitness device according to claim 1, characterized in that: The diameter of the main body (1) of the pin is matched with the lock hole on the counterweight, and the lock hole is provided with a guide groove to facilitate the automatic alignment of the locking pin (106).

5. The pin of a weight block for a fitness device according to claim 1, characterized in that: The end of the locking pin (106) protrudes from the outer wall of the second groove (104).

6. The pin of a weight block for a fitness device according to claim 1, characterized in that: The inner wall of the main body of the pin (1) is provided with a first rack (109) on both sides, and the outer wall of the inner tube (2) is provided with a second rack (202) on both sides. A gear (203) is provided between the second rack (202) and the first rack (109), and the gear (203) meshes with the first rack (109) and the second rack (202).

7. The pin of a weight block for a fitness device according to claim 1, characterized in that: Limiting blocks are provided on both sides of the inner wall of the pin body (1) near the first groove (101).

8. The pin of a weight block for a fitness device according to claim 1, characterized in that: A telescopic sleeve is installed inside the spring (105).

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