Outdoor adjustable resistance, theft-proof power training weight mechanism
By designing a counterweight rotation frame and sleeve adjustment components, the problems of counterweight loss and inconvenient adjustment in traditional outdoor strength training equipment are solved, achieving stable, safe, and convenient training strength adjustment and anti-theft effects, while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO SUN METAL IND CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional outdoor strength training equipment suffers from problems such as weight loss, unstable center of gravity, inconvenient adjustment, high cost, and lack of universality.
An adjustable resistance and theft-proof strength training counterweight mechanism suitable for outdoor use was designed. The counterweight can slide and rotate through a counterweight rotation frame and a sleeve adjustment component to adjust the training force. The structure is simple, easy to install, and theft-proof.
It achieves stability and safety of the counterweight, reduces costs, improves the convenience and versatility of adjustment, and prevents counterweight loss.
Smart Images
Figure CN224404283U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sports equipment technology, and specifically relates to an adjustable resistance and theft-proof strength training weight mechanism suitable for outdoor use. Background Technology
[0002] Strength training equipment, also known as anaerobic equipment, is primarily used to train skeletal muscles for speed, strength, explosiveness, and physique. It aims to develop specific muscle groups through training intensity and duration. These machines are equipped with weight plates, allowing users to adjust the weight to their individual needs.
[0003] However, traditional outdoor strength training equipment typically uses plate-type or simple sliding mechanisms to adjust resistance, which often suffers from problems such as weight loss, unstable weight center of gravity, deformation of the slide bar, inconvenient adjustment, high cost, and lack of versatility. Therefore, it is necessary to design an adjustable resistance, theft-proof strength training weight mechanism suitable for outdoor use to solve these problems. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides an adjustable resistance and theft-proof strength training weight mechanism suitable for outdoor use, thereby solving the issues raised in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a strength training weight mechanism with adjustable resistance and anti-theft features suitable for outdoor use, applied to outdoor strength training equipment. The outdoor strength training equipment includes a main frame and a lever arm, the lever arm being rotatably connected to the main frame, comprising:
[0006] A counterweight rotating frame, the end of which is rotatably connected to the lever arm;
[0007] A sleeve adjusting assembly, wherein the sleeve adjusting assembly is slidably connected to the counterweight rotating frame;
[0008] A counterweight is connected to the sleeve adjustment assembly.
[0009] Furthermore, the outdoor adjustable resistance, theft-proof strength training weight mechanism also includes:
[0010] A counterweight rotation limiting frame, two of which are installed at both ends of the lever arm, and are used to connect with the counterweight rotation frame.
[0011] Furthermore, the counterweight rotating frame includes:
[0012] A counterweight rotating shaft is provided on the lever arm, and the counterweight rotating shaft is rotatably connected to the counterweight rotating bearing sleeve.
[0013] A counterweight rotating plate, the end of which is connected to the counterweight rotating shaft;
[0014] A limiting plate is provided, which is connected to the end of the counterweight rotating plate. The limiting plate has a slot. The counterweight rotating limiting frame includes a counterweight rotating limiting frame fixing plate and a limiting post. The counterweight rotating limiting frame fixing plate is connected to the lever arm, and the limiting post is connected to the counterweight rotating limiting frame fixing plate. The limiting post is used to be inserted into the slot.
[0015] Furthermore, the counterweight rotating frame includes:
[0016] A pin support sleeve is provided, which is connected to the limiting plate.
[0017] The seat pull pin has a limiting hole on the limiting plate, and the seat pull pin passes through the pull pin support sleeve to be inserted into the limiting hole.
[0018] Furthermore, the sleeve adjusting assembly includes:
[0019] A linear bearing sleeve is provided, and a slide rod is mounted on the counterweight rotating plate. The linear bearing sleeve is slidably connected to the slide rod, and the axial direction of the slide rod is toward the length direction of the lever arm.
[0020] A sleeve adjusting branch pipe, wherein the sleeve adjusting branch pipe is connected to the linear bearing sleeve;
[0021] A sleeve tube, the sleeve tube being connected to the sleeve adjusting branch tube, and a plurality of the counterweights being sleeved on the sleeve tube;
[0022] The adjustment handle has a positioning hole on the rotating plate, and the lower end of the adjustment handle passes through the sleeve tube to be inserted into the positioning hole.
[0023] Furthermore, the sleeve adjusting assembly includes:
[0024] A sleeve adjusting bracket handle, the end of which is connected to the sleeve adjusting branch pipe.
[0025] Furthermore, the outdoor adjustable resistance, theft-proof strength training weight mechanism also includes:
[0026] A pull pin cover, which is connected to the upper end of the sleeve tube;
[0027] A pull pin head is connected to the upper end of the adjusting handle.
[0028] The technical effects and advantages of this utility model are as follows:
[0029] The counterweight is set on the sleeve adjustment assembly. The training force is adjusted by sliding the sleeve adjustment assembly relative to the counterweight rotating frame and by rotating the counterweight rotating frame relative to the lever arm. There is no need to adjust the number of counterweights, making adjustment more convenient, easier to install, simple to operate, and the counterweight is not easy to lose.
[0030] By aligning the center of gravity of the counterweight with the rotation point of the counterweight rotating frame, the center of gravity can be stabilized, and then the counterweight rotating frame can be rotated, thereby achieving both ease and safety during rotation.
[0031] This outdoor adjustable resistance, theft-proof strength training weight mechanism consists only of a weight rotation frame, a sleeve adjustment assembly, and the weight itself. Its simple structure makes it easy to pack and transport. The weight rotation frame, sleeve adjustment assembly, and weight are suitable for installation on most outdoor strength training equipment, offering high versatility and helping to reduce costs.
[0032] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the mechanisms pointed out in the description and drawings. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0034] Figure 1 This invention provides a schematic diagram of the structure of an outdoor adjustable resistance and theft-proof strength training counterweight mechanism according to an embodiment of the present invention.
[0035] Figure 2 A schematic diagram of the lever arm according to an embodiment of the present invention is shown;
[0036] Figure 3 A schematic diagram of the sleeve adjustment assembly according to an embodiment of the present invention is shown;
[0037] Figure 4 A schematic diagram of the counterweight rotation limiting frame according to an embodiment of the present invention is shown;
[0038] Figure 5 A schematic diagram of the counterweight rotating frame according to an embodiment of the present invention is shown;
[0039] Figure 6This invention provides a partial structural schematic diagram of an outdoor adjustable resistance and theft-proof strength training weight mechanism according to an embodiment of the present invention.
[0040] Figure 7 It shows Figure 6 Enlarged view of region A in the middle;
[0041] Figure 8 This diagram illustrates a first usage state of an outdoor adjustable resistance, theft-proof strength training weight mechanism according to an embodiment of the present invention.
[0042] Figure 9 This diagram illustrates a second usage state of the adjustable resistance, theft-proof strength training weight mechanism suitable for outdoor use, according to an embodiment of the present invention.
[0043] Figure 10 This diagram illustrates a third usage state of an outdoor adjustable resistance, theft-proof strength training weight mechanism according to an embodiment of the present invention.
[0044] Reference numerals: 1. Main frame; 2. Lever arm; 3. Counterweight rotating frame; 4. Sleeve adjusting assembly; 5. Counterweight; 6. Upper inclined push shoulder main frame; 7. First upper inclined push shoulder connecting frame; 8. Second upper inclined push shoulder connecting frame; 9. Upper inclined push shoulder left side frame; 10. Upper inclined push shoulder right side frame; 11. Counterweight rotating limit frame; 12. Counterweight rotating shaft; 13. Counterweight rotating plate; 14. Limiting plate; 15. Counterweight rotating bearing 16. Sleeve; 17. Counterweight rotation limiter fixing plate; 18. Limiting post; 19. Pull-out pin support sleeve; 20. Seat pull-out pin; 21. Limiting hole; 22. Linear bearing sleeve; 23. Sleeve adjusting branch pipe; 24. Sleeve tube; 25. Adjusting handle; 26. Slide rod; 27. Positioning hole; 28. Sleeve adjusting bracket handle; 29. Pull-out pin cover; 30. Pull-out pin head; 31. Backrest cushion; 32. Seat cushion. Detailed Implementation
[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0046] The positive X-axis points forward, and the negative X-axis points backward; the positive Y-axis points left, and the negative Y-axis points right; the positive Z-axis points upward, and the negative Z-axis points downward.
[0047] like Figure 1 and Figure 6As shown in the figure, this utility model provides an adjustable resistance, theft-proof weight mechanism for outdoor strength training, applicable to outdoor strength training equipment. The outdoor strength training equipment includes a main frame 1 and a lever arm 2, with the lever arm 2 rotatably connected to the main frame 1. It includes a weight rotation frame 3, a sleeve adjustment assembly 4, and a weight 5. Specifically, the main frame 1 includes an inclined shoulder push main frame 6, a first inclined shoulder push connecting frame 7, a second inclined shoulder push connecting frame 8, an inclined shoulder push left side frame 9, and an inclined shoulder push right side frame 10. The rear end of the inclined shoulder push main frame 6 is connected to the middle of the first inclined shoulder push connecting frame 7, the left end of the first inclined shoulder push connecting frame 7 is connected to the inclined shoulder push left side frame 9, and the right end of the first inclined shoulder push connecting frame 7 is connected to the inclined shoulder push right side frame 10. Two second upward-sloping shoulder connecting frames 8 are provided and located in front of the first upward-sloping shoulder connecting frame 7. The two second upward-sloping shoulder connecting frames 8 are respectively located on the left and right sides of the main upward-sloping shoulder frame 6. The left and right ends of the left second upward-sloping shoulder connecting frame 8 are connected to the left side frame 9 and the main upward-sloping shoulder frame 6, respectively. The left and right ends of the right second upward-sloping shoulder connecting frame 8 are connected to the main upward-sloping shoulder frame 6 and the right side frame 10, respectively. The lever arm 2 includes a left lever arm 2 and a right lever arm 2. The rear end of the left lever arm 2 is rotatably connected to the rear end of the left side frame 9, and the front end of the left lever arm 2 is mounted on the front end of the left side frame 9. The rear end of the right lever arm 2 is rotatably connected to the rear end of the right side frame 10, and the front end of the right lever arm 2 is mounted on the front end of the right side frame 10. During use, a force is applied to the lever arm 2 by pushing, causing the lever arm 2 to rotate relative to the main frame 1. The end of the counterweight rotating frame 3 is rotatably connected to the lever arm 2. The sleeve adjustment assembly 4 is slidably connected to the counterweight rotating frame 3. The counterweight 5 is connected to the sleeve adjustment assembly 4. Specifically, the counterweight 5 can be a barbell.
[0048] To adjust different training forces, the position of the counterweight 5 on the lever arm 2 can be adjusted. The counterweight 5 is connected to the sleeve adjustment assembly 4, and the sleeve adjustment assembly 4 is slidably connected to the counterweight rotating frame 3. The counterweight rotating frame 3 extends along the length of the lever arm 2. By sliding the sleeve adjustment assembly 4 on the counterweight rotating frame 3, the counterweight 5 is driven to move along the length of the lever arm 2, thereby adjusting the position of the counterweight 5 on the lever arm 2 and thus adjusting the magnitude of the training force.
[0049] Secondly, the counterweight rotating frame 3 rotates relative to the lever arm 2, and the sleeve adjustment assembly 4 is connected to the counterweight rotating frame 3. By rotating the counterweight rotating frame 3 180 degrees, the position of the counterweight 5 on the lever arm 2 can also be adjusted, thereby adjusting the training force. Preferably, during the rotation of the counterweight rotating frame 3 relative to the lever arm 2, the sleeve adjustment assembly 4 can be driven first to make the counterweight 5 slide on the counterweight rotating frame 3, so that the center of gravity of the counterweight 5 coincides with the rotation point of the counterweight rotating frame 3, thereby achieving easy and safe rotation.
[0050] Therefore, the counterweight 5 is set on the sleeve adjustment assembly 4. The training force is adjusted by sliding the sleeve adjustment assembly 4 relative to the counterweight rotating frame 3 and by rotating the counterweight rotating frame 3 relative to the lever arm 2. There is no need to adjust the number of counterweights 5, making adjustment more convenient, easier to install, and simpler to operate.
[0051] Secondly, by aligning the center of gravity of counterweight 5 with the rotation point of counterweight rotating frame 3, the center of gravity can be stabilized, and then the counterweight rotating frame 3 can be rotated, thereby achieving both ease and safety during rotation.
[0052] Furthermore, this outdoor adjustable resistance, theft-proof strength training weight mechanism consists of only a weight rotation frame 3, a sleeve adjustment component 4, and a weight 5. Its simple structure makes it easy to pack and transport. The weight rotation frame 3, sleeve adjustment component 4, and weight 5 are suitable for installation on most outdoor strength training equipment, offering high versatility and helping to reduce costs.
[0053] In this embodiment, as Figure 1 and Figure 6 As shown, the main frame 1 also includes a backrest 31 and a seat cushion 32, both of which are mounted on the upper inclined push-shoulder main frame 6.
[0054] Optionally, such as Figure 1 and Figure 6 As shown, to prevent the counterweight 5 from sliding on the counterweight rotating frame 3 when the sleeve adjustment assembly 4 drives it, the counterweight rotating frame 3 rotates relative to the lever arm 2. The outdoor adjustable resistance, anti-theft strength training counterweight mechanism also includes a counterweight rotating limit frame 11. Two counterweight rotating limit frames 11 are installed at both ends of the lever arm 2 and are used to connect to the counterweight rotating frame 3. Specifically, by installing counterweight rotating limit frames 11 at both ends of the lever arm 2, when the counterweight rotating frame 3 is rotated to the front side of the lever arm 2, the front counterweight rotating limit frame 11 connects to the front end of the counterweight rotating frame 3 to limit the counterweight rotating frame 3, preventing it from rotating relative to the lever arm 2. Secondly, when the counterweight rotating frame 3 is rotated to the rear side of the lever arm 2, the rear counterweight rotating limit frame 11 connects to the rear end of the counterweight rotating frame 3 to limit the counterweight rotating frame 3, preventing it from rotating relative to the lever arm 2.
[0055] Optionally, such as Figure 3 , Figure 5 as well as Figure 7As shown, to ensure the effectiveness of the counterweight rotating frame 3, the counterweight rotating frame 3 includes a counterweight rotating shaft 12, a counterweight rotating plate 13, and a limiting plate 14. A counterweight rotating bearing sleeve 15 is provided on the lever arm 2, and the counterweight rotating shaft 12 is rotatably connected to the counterweight rotating bearing sleeve 15. Specifically, the counterweight rotating shaft 12 and the counterweight rotating bearing sleeve 15 are coaxially distributed, and their axial directions are both upward and downward. The end of the counterweight rotating plate 13 is connected to the counterweight rotating shaft 12. The limiting plate 14 is connected to the end of the counterweight rotating plate 13, and a slot 16 is provided on the limiting plate 14. The counterweight rotating limiting frame 11 includes a counterweight rotating limiting frame fixing plate 17 and a limiting post 18. The counterweight rotating limiting frame fixing plate 17 is connected to the lever arm 2, and the limiting post 18 is connected to the counterweight rotating limiting frame fixing plate 17. The limiting post 18 is used to insert into the slot 16. Specifically, the limiting plate 14 has a latch 16 on both the left and right sides, and there are two counterweight rotating limit frame fixing plates 17, which are respectively located on the front and rear sides of the lever arm 2. Each of the two counterweight rotating limit frame fixing plates 17 is connected to a limiting post 18. When the counterweight rotating frame 3 is rotated to the front of the lever arm 2, the counterweight rotating plate 13 rotates relative to the counterweight rotating bearing sleeve 15 through the counterweight rotating shaft 12. During the rotation of the counterweight rotating plate 13, the limiting plate 14 is driven to rotate relative to the lever arm 2, so that the right latch 16 of the limiting plate 14 moves and approaches the front limiting post 18 until the front limiting post 18 is engaged in the left latch 16 of the limiting plate 14. When the counterweight rotating frame 3 is rotated to the rear side of the lever arm 2, the counterweight rotating plate 13 rotates relative to the counterweight rotating bearing sleeve 15 through the counterweight rotating shaft 12. During the rotation of the counterweight rotating plate 13, the limiting plate 14 is driven to rotate relative to the lever arm 2, so that the left side slot 16 of the limiting plate 14 moves and approaches the rear limiting post 18 until the rear limiting post 18 is engaged in the right side slot 16 of the limiting plate 14.
[0056] Optionally, such as Figure 4 and Figure 7As shown, this is for positioning the counterweight rotating frame 3. The counterweight rotating frame 3 also includes a pin support sleeve 19 and a seat pin 20. The pin support sleeve 19 is connected to the limiting plate 14. Specifically, the pin support sleeve 19 and the limiting plate 14 are integrally formed. The limiting plate 14 has a limiting hole 21, and the seat pin 20 passes through the pin support sleeve 19 to be inserted into the limiting hole 21. Specifically, when the counterweight rotating plate 13 is located behind the lever arm 2, the seat pin 20 is inserted into the limiting hole 21 of the rear limiting plate 14, and the counterweight rotating plate 13 cannot rotate. Before rotating the counterweight rotating plate 13 to the front of the lever arm 2, the seat pin 20 is first pulled out from the limiting hole 21 of the rear limiting plate 14, and then the counterweight rotating plate 13 is rotated to the front of the lever arm 2, and the seat pin 20 is inserted into the limiting hole 21 of the front limiting plate 14. Correspondingly, when the counterweight rotating plate 13 is located in front of the lever arm 2, the seat pin 20 is inserted into the limiting hole 21 of the front limiting plate 14, and the counterweight rotating plate 13 cannot rotate. Before rotating the counterweight rotating plate 13 to the rear of the lever arm 2, first pull the seat pin 20 out of the limiting hole 21 of the front limiting plate 14, then rotate the counterweight rotating plate 13 to the rear of the lever arm 2, and insert the seat pin 20 into the limiting hole 21 of the rear limiting plate 14.
[0057] Optionally, such as Figure 3 and Figure 7As shown, this is to drive the counterweight 5 to slide on the counterweight rotating plate 13 and to position the counterweight 5. The sleeve adjustment assembly 4 includes a linear bearing sleeve 22, a sleeve adjustment branch pipe 23, a sleeve pipe 24, and an adjustment handle 25. A slide rod 26 is installed on the counterweight rotating plate 13, and the linear bearing sleeve 22 is slidably connected to the slide rod 26. The axial direction of the slide rod 26 is towards the length direction of the lever arm 2. Specifically, there are two slide rods 26, which are arranged in parallel and both face the front-back direction. There are two linear bearing sleeves 22, which are slidably connected to the two slide rods 26 respectively. The sleeve adjustment branch pipe 23 is connected to the linear bearing sleeve 22. Specifically, the sleeve adjustment branch pipe 23 is positioned between two linear bearing sleeves 22, and its left and right ends are connected to the two linear bearing sleeves 22. Two slide rods 26 can be used to guide the movement direction of the counterweight 5, avoiding deformation of the slide rod 26 caused by using only one slide rod 26. The sleeve tube 24 is connected to the sleeve adjustment branch pipe 23, and multiple counterweights 5 are fitted onto the sleeve tube 24. Specifically, the multiple counterweights 5, the adjustment handle 25, and the sleeve tube 24 are coaxially distributed. A positioning hole 27 is provided on the rotating plate, and the lower end of the adjustment handle 25 passes through the sleeve tube 24 to be inserted into the positioning hole 27. Specifically, multiple positioning holes 27 are provided, and the multiple positioning holes 27 are distributed sequentially at intervals along the length direction of the counterweight rotating plate 13. To drive the counterweight 5, first pull the lower end of the adjusting handle 25 out of a positioning hole 27, then drive the sleeve adjusting branch pipe 23 to move in the front-back direction, thereby driving the sleeve pipe 24 and multiple counterweights 5 to move in the front-back direction until the lower end of the adjusting handle 25 corresponds to another positioning hole 27, then insert the lower end of the adjusting handle 25 into the other positioning hole 27. Next, the linear bearing sleeve 22 moves along the axial direction of the slide rod 26, and the sleeve adjusting branch pipe 23 is connected to the linear bearing sleeve 22, which guides the sleeve adjusting branch pipe 23, ensuring that the adjusting handle 25 moves accurately along the distribution direction of the multiple positioning holes 27, so that the adjusting handle 25 is accurately inserted into other positioning holes 27. Therefore, when driving multiple counterweights 5 to different positions of the lever arm 2, the multiple counterweights 5 are always sleeved on the sleeve pipe 24 without disassembly, preventing loss. Secondly, as... Figures 8 to 10As shown, when the counterweight rotating plate 13 is located behind the lever arm 2, by adjusting the handle 25 from back to front and inserting it into different positioning holes 27, multiple counterweights 5 can be sequentially moved to counterweight positions 1a, 2b, and 3c on the lever arm 2. Then, by rotating the counterweight rotating plate 13 so that it is located in front of the lever arm 2, and by adjusting the handle 25 from back to front and inserting it into different positioning holes 27, multiple counterweights 5 can be sequentially moved to counterweight positions 4d and 5e on the lever arm 2. During the process of adjusting the multiple counterweights 5 from counterweight position 1a to counterweight position 5e, the training force gradually increases.
[0058] Optionally, such as Figure 3 and Figure 7 As shown, to facilitate the driving of the sleeve adjusting branch pipe 23, the sleeve adjusting assembly 4 also includes a sleeve adjusting bracket handle 28, the end of which is connected to the sleeve adjusting branch pipe 23. Specifically, a sleeve adjusting bracket handle 28 is connected to the sleeve adjusting branch pipe 23. The sleeve adjusting bracket handle 28 is L-shaped, with its long side connected to the sleeve adjusting branch pipe 23 and its short side fitted with an aluminum alloy handle. In practice, the sleeve adjusting branch pipe 23 can be moved by holding the sleeve adjusting bracket handle 28.
[0059] Optionally, such as Figure 1 and Figure 7 As shown, the outdoor adjustable resistance, anti-theft strength training counterweight mechanism also includes a pull-out cap 29 and a pull-out head 30. The pull-out cap 29 is connected to the upper end of the sleeve tube 24. Specifically, the lower end of the sleeve tube 24 is connected to the sleeve adjustment branch pipe 23. Multiple counterweights 5 are sleeved on the sleeve tube 24, and the pull-out cap 29 is located at the upper end of the sleeve tube 24, that is, the multiple counterweights 5 are located between the sleeve adjustment branch pipe 23 and the pull-out cap 29, which can limit the multiple counterweights 5 to prevent them from falling off and to prevent theft. The pull-out head 30 is connected to the upper end of the adjustment handle 25. Specifically, the pull-out head 30 is connected to the upper end of the adjustment handle 25, which makes it easy to hold the pull-out head 30 to drive the adjustment handle 25.
[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A resistance-adjustable, theft-proof weight mechanism for outdoor strength training, applied to outdoor strength training equipment, the outdoor strength training equipment comprising a main frame (1) and a lever arm (2), the lever arm (2) being rotatably connected to the main frame (1), characterized in that, include: A counterweight rotating frame (3) is rotatably connected at one end to the lever arm (2); Sleeve adjustment assembly (4), which is slidably connected to the counterweight rotating frame (3); The counterweight (5) is connected to the sleeve adjustment assembly (4).
2. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 1, characterized in that, Also includes: The counterweight rotation limit frame (11) is installed at both ends of the lever arm (2) and is used to connect with the counterweight rotation frame (3).
3. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 2, characterized in that, The counterweight rotating frame (3) includes: A counterweight rotating shaft (12) is provided on the lever arm (2), and a counterweight rotating bearing sleeve (15) is provided on the lever arm (2). The counterweight rotating shaft (12) is rotatably connected to the counterweight rotating bearing sleeve (15). The counterweight rotating plate (13) is connected at its end to the counterweight rotating shaft (12).
4. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 3, characterized in that, The counterweight rotating frame (3) also includes: A limiting plate (14) is connected to the end of the counterweight rotating plate (13). A slot (16) is provided on the limiting plate (14). The counterweight rotating limiting frame (11) includes a counterweight rotating limiting frame fixing plate (17) and a limiting post (18). The counterweight rotating limiting frame fixing plate (17) is connected to the lever arm (2). The limiting post (18) is connected to the counterweight rotating limiting frame fixing plate (17). The limiting post (18) is used to be inserted into the slot (16).
5. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 4, characterized in that, The counterweight rotating frame (3) includes: A pin support sleeve (19) is connected to the limiting plate (14); Seat pull pin (20), the limiting plate (14) has a limiting hole (21), the seat pull pin (20) passes through the pull pin support sleeve (19) and is inserted into the limiting hole (21).
6. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 5, characterized in that, The sleeve adjustment assembly (4) includes: A linear bearing sleeve (22) is provided, and a slide rod (26) is installed on the counterweight rotating plate (13). The linear bearing sleeve (22) is slidably connected to the slide rod (26), and the axial direction of the slide rod (26) is toward the length direction of the lever arm (2). Sleeve adjusting branch pipe (23), the sleeve adjusting branch pipe (23) is connected to the linear bearing sleeve (22); Sleeve tube (24), the sleeve tube (24) is connected to the sleeve adjusting branch tube (23), and multiple counterweights (5) are sleeved on the sleeve tube (24).
7. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 6, characterized in that, The sleeve adjustment assembly (4) further includes: Adjusting handle (25), the rotating plate has a positioning hole (27), the lower end of the adjusting handle (25) passes through the sleeve tube (24) and is inserted into the positioning hole (27); The sleeve adjustment bracket handle (28) is connected at the end to the sleeve adjustment branch pipe (23).
8. The outdoor adjustable resistance, theft-proof strength training weight mechanism according to claim 7, characterized in that, Also includes: A pull pin cover (29) is connected to the upper end of the sleeve tube (24); Pull pin head (30), which is connected to the upper end of the adjusting handle (25).