Pull-up assisting device

Abstract

The utility model relates to body -building equipment technical field discloses a kind of pull-up auxiliary devices, including base, portal frame connected on base, the auxiliary mechanism for providing upward traction is installed on the portal frame to user, the counterweight mechanism for adjusting the size of upward traction is installed between the bottom of the auxiliary mechanism and base;Through the design of auxiliary mechanism, user can adopt kneeling posture state support on support plate, spring is stretched at this time, when doing pull-up, the spring elasticity is used to provide part of upward traction for user, so that novice or small power type user is more relaxed when doing pull-up;Through the design of counterweight mechanism, counterweight block is connected at the bottom of support plate by pull rod, and the number of counterweight block can be adjusted according to different population (different strength) or different training period of user, neutralize the upward traction of auxiliary mechanism, reach the training purpose of gradual progress.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and more particularly to the field of pull-up fitness equipment, specifically a pull-up assist device. Background Technology

[0002] Fitness equipment refers to the general term for instruments and equipment used to assist in physical exercise, sports training or rehabilitation activities. It is designed to help users enhance muscle strength, improve cardiopulmonary function, flexibility and balance through specific mechanical structures and functional designs.

[0003] Pull-up machines are fitness equipment designed to strengthen the upper limb and back muscles. Through different variations, they can comprehensively improve strength and muscle coordination.

[0004] Traditional pull-up machines have a simple structure and lack auxiliary structures (to provide upward traction for users). They rely solely on the user's own strength to pull up their entire body weight, which is quite strenuous and not very friendly to training beginners or users with less strength. Therefore, we need to propose a pull-up assist device. Utility Model Content

[0005] The purpose of this invention is to provide a pull-up assist device. Through the design of the assist mechanism, the user can kneel and support themselves on the support plate. At this time, the spring is stretched, and when performing pull-ups, the spring's elasticity provides the user with some upward traction, making pull-ups easier for beginners or users with less strength. Through the design of the counterweight mechanism, counterweights are connected to the bottom of the support plate via a pull rod. The number of counterweights can be adjusted according to different groups of people (different strengths) or different training stages of the user, neutralizing the upward traction of the assist mechanism and achieving a gradual training goal, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pull-up assist device, including a base and a gantry frame connected to the base, wherein an assist mechanism for providing upward traction force to the user is installed on the gantry frame, and a counterweight mechanism for adjusting the magnitude of the upward traction force is installed between the bottom of the assist mechanism and the base;

[0007] The auxiliary mechanism includes a main rod and auxiliary rods movably connected to both ends of the main rod. A spring connects the main rod and the auxiliary rod. A support plate for supporting the user is connected to the bottom of the auxiliary rod located below.

[0008] The counterweight mechanism includes a pull rod connected to the bottom of the support plate and a housing mounted on the base. The housing contains a counterweight block that is mounted on the pull rod via a pin.

[0009] Preferably, the auxiliary mechanism further includes a movable sleeve that is slidably mounted on the outer wall of the side of the gantry frame, and the movable sleeve is connected to the main rod body through a connecting column.

[0010] Preferably, the inner wall of the movable sleeve is equipped with ball bearings, and the outer side wall of the gantry frame is provided with a sliding groove, in which the ball bearings are rotatably installed.

[0011] Preferably, a fixing sleeve is connected to the top of the upper auxiliary rod, and the fixing sleeve is fitted onto the outer wall of the top of the gantry frame.

[0012] Preferably, both ends of the main rod are provided with mounting slots, one end of the secondary rod is movably inserted into the interior of the mounting slot, a mounting plate is installed on the outer wall of one end of the secondary rod, and the spring is connected between the mounting plate and the inner bottom of the mounting slot.

[0013] Preferably, the side of the mounting plate is integrally formed with a limiting block, the inner wall of the mounting groove is provided with a limiting groove, and the limiting block is slidably installed inside the limiting groove.

[0014] Preferably, the surface of the support plate is provided with a protective pad to protect the user's legs, and the bottom of the support plate is connected to a rubber block for abutting against the top of the outer shell.

[0015] Preferably, the counterweight has a second through hole vertically formed, the top of the outer shell has a first through hole, and the bottom of the pull rod passes through the first and second through holes and is located inside the outer shell.

[0016] Preferably, the counterweight is also provided with a vertically opening limit hole, and a limit post is installed inside the outer shell, with the limit post passing through the limit hole; the counterweight is also provided with a horizontally opening insertion hole two communicating with the through hole two, and an insertion hole one is provided on the outer wall of the pull rod, with one end of the pin passing through the insertion hole one and the insertion hole two.

[0017] Preferably, one side of the housing has an operating hole through which the pin passes.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Through the design of the auxiliary mechanism, this utility model allows users to support themselves on the support plate in a kneeling position. At this time, the spring is stretched, and when doing pull-ups, the elasticity of the spring provides the user with part of the upward traction force, making it easier for beginners or users with less strength to do pull-ups.

[0020] 2. This utility model, through the design of a counterweight mechanism, has counterweight blocks connected to the bottom of the support plate by a tie rod. The number of counterweight blocks can be adjusted according to different groups of people (different strength) or different training periods of users, so as to neutralize the upward traction force of the auxiliary mechanism and achieve the purpose of gradual training. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the base and gantry frame of this utility model;

[0023] Figure 3 This is a schematic diagram of the auxiliary mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the counterweight mechanism of this utility model.

[0025] In the picture:

[0026] 1. Base; 2. Gantry frame; 21. Slide rail; 3. Anti-slip sleeve;

[0027] 4. Auxiliary mechanism; 41. Main rod; 42. Connecting column; 43. Movable sleeve; 44. Ball bearing; 45. Limiting groove; 46. Fixed sleeve; 47. Secondary rod; 48. Mounting plate; 49. Limiting block; 410. Spring; 411. Support plate; 412. Protective pad; 413. Rubber block;

[0028] 5. Counterweight mechanism; 51. Housing; 52. Operating hole; 53. Limiting post; 54. Through hole one; 55. Pull rod; 56. Insertion hole one; 57. Counterweight block; 58. Through hole two; 59. Limiting hole; 510. Insertion hole two; 511. Pin. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a pull-up assist device, including a base 1 and a gantry 2 connected to the base 1. The gantry 2 is U-shaped and is equipped with an assist mechanism 4 that provides upward traction force to the user, making it easier and less strenuous for the user to do pull-ups. A counterweight mechanism 5 for adjusting the magnitude of the upward traction force is installed between the bottom of the assist mechanism 4 and the base 1. The weight of the counterweight mechanism 5 is adjustable. By adjusting the weight of the counterweight mechanism 5, the upward traction force of the spring 410 is overcome and the magnitude of the upward traction force is changed, making it suitable for use by the user at different training periods.

[0031] The top of the gantry frame 2 is also equipped with two anti-slip sleeves 3. When the user does pull-ups, he / she holds the two anti-slip sleeves 3 with both hands to prevent slipping.

[0032] The auxiliary mechanism 4 includes a main rod 41 and a secondary rod 47 movably connected to both ends of the main rod 41. A spring 410 is connected between the main rod 41 and the secondary rod 47. A support plate 411 for supporting the user is connected to the bottom of the secondary rod 47 located below.

[0033] When the user kneels on the support plate 411, the spring 410 is stretched due to the user's weight. When the user starts doing pull-ups, the user's arms exert force to pull the body up, and the spring 410 returns to its shape, generating an upward elastic force that lifts the user up, making pull-ups easier and less strenuous.

[0034] The counterweight mechanism 5 includes a pull rod 55 connected to the bottom of the support plate 411 and a housing 51 mounted on the base 1. Inside the housing 51 are counterweight blocks 57 for mounting on the pull rod 55 via pins 511. Multiple counterweight blocks 57 are provided, and the sum of the weights of all counterweight blocks 57 is less than the sum of the elastic forces of the springs 410. This ensures that the springs 410 always provide upward traction when using the counterweight mechanism 5. However, the upward traction provided by the springs 410 varies depending on the number of counterweight blocks 57 used, making it convenient for users to use at different training stages. In the later stages of training, as the user's strength increases, the upward traction required decreases, which can be reduced by increasing the number of counterweight blocks 57.

[0035] The auxiliary mechanism 4 also includes a movable sleeve 43 that is slidably installed on the outer side wall of the gantry frame 2. The movable sleeve 43 is connected to the main rod 41 by a connecting column 42.

[0036] The inner wall of the movable sleeve 43 is equipped with ball bearings 44, and the outer side wall of the gantry frame 2 is provided with a sliding groove 21. The ball bearings 44 are rolled inside the sliding groove 21, which can ensure the stability of the movable sleeve 43 moving on the gantry frame 2.

[0037] The top of the upper auxiliary rod 47 is connected to a fixing sleeve 46, which fits onto the outer wall of the top of the gantry frame 2. Two anti-slip sleeves 3 are located between the two fixing sleeves 46, and the distance between the two anti-slip sleeves 3 is slightly larger than the width of the user's shoulder.

[0038] Both ends of the main rod 41 have mounting slots. One end of the secondary rod 47 is movably inserted into the mounting slot. A mounting plate 48 is mounted on the outer wall of one end of the secondary rod 47. A spring 410 is connected between the mounting plate 48 and the inner bottom of the mounting slot. When the user first steps onto the support plate 411, the spring 410 is stretched. When the user begins to pull themselves up, their arms exert force to pull the user upward, and at the same time, the spring 410 returns to its shape, providing an upward elastic force and providing the user with partial upward traction.

[0039] The side of the mounting plate 48 is integrally formed with a limiting block 49, and the inner wall of the mounting groove is provided with a limiting groove 45. The limiting block 49 is slidably installed inside the limiting groove 45. Through the design of the limiting block 49 and the limiting groove 45, the auxiliary rod 47 can move stably and linearly inside the mounting groove.

[0040] The surface of the support plate 411 is provided with a protective pad 412 to protect the user's legs. The protective pad 412 can be a sponge pad covered with a layer of leather material. The bottom of the support plate 411 is connected to a rubber block 413 for abutting against the top of the outer shell 51. When the rubber block 413 abuts against the top of the outer shell 51, the bottom of the pull rod 55 is close to the inner bottom of the outer shell 51, with a distance of 5-10mm. This allows the bottommost counterweight block 57 to be installed on the pull rod 55, while preventing the pull rod 55 from colliding with the outer shell 51.

[0041] The counterweight 57 has a vertical through hole 2 58, the top of the outer shell 51 has a through hole 1 54, and the bottom of the pull rod 55 passes through the through hole 1 54 and the through hole 2 58 and is located inside the outer shell 51.

[0042] The counterweight 57 is also vertically provided with a limiting hole 59, and a limiting post 53 is installed inside the outer shell 51. The limiting post 53 passes through the limiting hole 59 to ensure the stability of the counterweight 57 during the up and down movement. The counterweight 57 is also horizontally provided with a second insertion hole 510 that communicates with the second through hole 58. The outer wall of the pull rod 55 is provided with a first insertion hole 56. At least one first insertion hole 56 is provided. One end of the pin 511 passes through the first insertion hole 56 and the second insertion hole 510.

[0043] One end of the pin 511 is passed through the second insertion hole 510 on the counterweight 57 and the first insertion hole 56 on the pull rod 55 to install the counterweight 57 on the pull rod 55.

[0044] An operating hole 52 is provided on one side of the housing 51 for the pin shaft 511 to pass through.

[0045] When using it, for beginners who are just starting to train, in order to ensure the maximum upward traction of this device, there is no need to add the counterweight block 57 in the counterweight mechanism 5. The user can kneel directly on the protective pad 412, hold the anti-slip sleeve 3 with both hands, and without exerting any force (with arms outstretched), the spring 410 is stretched and the rubber block 413 abuts against the top of the outer shell 51.

[0046] When the user begins a pull-up, they use the strength of their arms to pull their body up, that is, the body and the support plate 411 move upward, and the spring 410 begins to contract, providing the user with an upward traction force. The user does not have to exert the weight of the entire body to complete a pull-up.

[0047] During the later stages of strength training, when users may need to apply less force, they will need to use the counterweight mechanism 5 to neutralize (counteract) the traction force of the spring 410. Users can choose the number of counterweights 57 to install based on their own situation. The installation process of the counterweights 57 is as follows:

[0048] Taking the selection of three counterweights 57 as an example: First, press down the support plate 411 so that the pull rod 55 passes through the second through hole 58. Then, pass one end of the pin 511 through the second insertion hole 510 on the third counterweight 57 and the first insertion hole 56 on the pull rod 55 to install the three counterweights 57 on the pull rod 55.

[0049] When a user does pull-ups, the elastic force of spring 410 needs to overcome the weight of the three counterweights 57, thus reducing the upward traction force and meeting the user's training objectives at different times.

[0050] 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. Pull-up assisting device, characterized in that: Includes a base and a gantry frame connected to the base. An auxiliary mechanism that provides upward traction force to the user is installed on the gantry frame. A counterweight mechanism that adjusts the magnitude of the upward traction force is installed between the bottom of the auxiliary mechanism and the base. The auxiliary mechanism includes a main rod and auxiliary rods movably connected to both ends of the main rod. A spring connects the main rod and the auxiliary rod. A support plate for supporting the user is connected to the bottom of the auxiliary rod located below. The counterweight mechanism includes a pull rod connected to the bottom of the support plate and a housing mounted on the base. The housing contains a counterweight block that is mounted on the pull rod via a pin.

2. Pull-up assisting device according to claim 1, characterized in that The auxiliary mechanism also includes a movable sleeve that is slidably installed on the outer side wall of the gantry frame, and the movable sleeve is connected to the main rod body through a connecting column.

3. The pull-up assist device of claim 2, wherein: The inner wall of the movable sleeve is equipped with ball bearings, and the outer side wall of the gantry frame is provided with a sliding groove, in which the ball bearings are rolled and installed.

4. The pull-up assist device of claim 1, wherein: A fixing sleeve is connected to the top of the upper auxiliary rod, and the fixing sleeve is fitted onto the outer wall of the top of the gantry frame.

5. The pull-up assist device of claim 1, wherein: Both ends of the main rod are provided with mounting slots. One end of the auxiliary rod is movably inserted into the interior of the mounting slot. A mounting plate is installed on the outer wall of one end of the auxiliary rod. The spring is connected between the mounting plate and the inner bottom of the mounting slot.

6. The pull-up assist device of claim 5, wherein: The mounting plate has an integrally formed limiting block on its side, and the inner wall of the mounting groove has a limiting groove, with the limiting block slidably installed inside the limiting groove.

7. The pull-up assist device of claim 1, wherein: The surface of the support plate is provided with a protective pad to protect the user's legs, and the bottom of the support plate is connected to a rubber block for abutting against the top of the outer shell.

8. The pull-up assist device of claim 1, wherein: The counterweight has a vertical through hole two, the top of the outer shell has a through hole one, and the bottom of the pull rod passes through through hole one and through hole two and is located inside the outer shell.

9. The pull-up assist device of claim 1, wherein: The counterweight is also vertically provided with a limiting hole, and a limiting post is installed inside the outer shell, with the limiting post passing through the limiting hole; the counterweight is also horizontally provided with a second insertion hole that communicates with the second through hole, and a first insertion hole is provided on the outer wall of the pull rod, with one end of the pin passing through the first insertion hole and the second insertion hole.

10. The pull-up assist device of claim 1, wherein: An operating hole for the pin shaft to pass through is provided on one side of the housing.

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