Novel leg clamping device
By introducing a knob to adjust the position of the screw in the leg clamp to change the length of the tension spring, the problem of the existing leg clamps not being able to adjust the resistance is solved, and a convenient exercise effect with adjustable resistance is achieved.
Patent Information
- Application Number
- CN202423096374.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing leg clamps lack resistance adjustment, failing to meet the needs of different users and resulting in insufficient practicality and convenience.
A novel leg clamp was designed, which adjusts the position of the screw by a knob to change the opening and closing length of the tension spring, thereby adjusting the resistance and providing a convenient resistance adjustment function.
Users can adjust the resistance level using a knob to effectively exercise their leg muscles, improving the applicability and convenience of the equipment.
Smart Images

Figure CN223641249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment technology, and in particular to a novel leg clamp. Background Technology
[0002] A leg clamp is a fitness device specifically designed to exercise the adductor muscles of the legs. By squeezing and relaxing the leg muscles, it promotes blood circulation and fat burning, thereby achieving the effect of slimming the legs.
[0003] Currently, leg clamps typically do not have an adjustable resistance function. However, different users have different strength requirements. If the leg clamp does not have an adjustable resistance function, it cannot be fully applicable to users with different strength requirements, so its practicality and convenience need to be improved. Utility Model Content
[0004] The present invention aims to provide a novel leg clamp that allows users to conveniently adjust the resistance of the leg clamp.
[0005] The technical solution adopted by this utility model to solve the technical problem is as follows: A novel leg clamp includes: a housing, in which a bracket is provided; a connecting seat, movably located at the front end inside the bracket; a left support arm and a right support arm, one end of the left support arm being inclined and sequentially hinged to one side of the bracket and one side of the connecting seat, and one end of the right support arm being inclined and sequentially hinged to the other side of the bracket and the other side of the connecting seat; a tension spring, housed in the middle and rear end inside the bracket, with one end of the tension spring connected to the connecting seat and the other end connected to a screw; and a knob, rotatably located at the bottom end of the housing and threadedly connected to the screw.
[0006] In some embodiments, the knob has a through hole, and a nut is fixed in the through hole. The knob is threadedly connected to the screw through the nut, and the through hole is used for the screw to pass through.
[0007] In some embodiments, the front end of the knob is embedded in the housing, the rear end of the knob is located outside the housing, the bottom end of the bracket is provided with a washer, and the front end face of the knob is provided with a ring of abutting side wall. The knob can be limited by abutting side wall against the washer at the bottom end of the bracket or the inner wall of the bottom of the housing.
[0008] In some embodiments, a left clamping plate is rotatably connected to the other end of the left support arm, and a right clamping plate is rotatably connected to the other end of the right support arm. The shapes of the left clamping plate and the right clamping plate are both arranged with long and short sides.
[0009] In some embodiments, a resistance value plate is provided on the outside of the bracket, and a movement hole is provided on the bracket. The resistance value plate is connected to the connection between the screw and the tension spring through the movement hole via a connecting rod. The movement hole has space for the connecting rod to move linearly. Several different resistance values are printed on the resistance value plate. A transparent part is provided on the outside of the housing, and the transparent part is used to correspond to the resistance values on the resistance value plate.
[0010] In some embodiments, a circuit board is provided inside the housing, and a control panel is provided outside the housing. The control panel is electrically connected to the circuit board, and an LED display and a touch switch are integrated on the control panel.
[0011] In some embodiments, a battery is provided inside the housing, and a charging port is provided outside the housing. The charging port is electrically connected to the battery, and the battery is electrically connected to the control panel.
[0012] In some embodiments, the inner side surfaces of the left clamping plate and the right clamping plate are provided with elastic surface layers.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, when it is necessary to increase the resistance of the left and right support arms, the user can manually turn the knob clockwise. When the knob is turned clockwise, the transmission screw moves backward, thereby causing the tension spring between the screw and the connecting seat to open to a greater length. Then, when the user squeezes the left and right support arms with both legs at the same time, the left and right support arms together push the connecting seat forward. When the connecting seat moves forward, the tension spring with a greater opening provides greater resistance, thereby increasing the resistance experienced by the user when squeezing the left and right support arms with both legs at the same time. When it is necessary to reduce the resistance of the left and right support arms, the user can manually turn the knob counterclockwise. Turning the knob counterclockwise moves the transmission screw forward, causing the tension spring between the screw and the connecting seat to contract by a certain length. Then, when the user simultaneously squeezes the left and right support arms with both legs, the left and right support arms together push the connecting seat forward. As the connecting seat moves forward, the contracted tension spring provides less resistance, thus reducing the resistance experienced by the user when squeezing the left and right support arms with both legs. In this invention, the user can adjust the opening and closing of the tension spring by turning the knob to adjust the resistance provided by the tension spring to the connecting seat. This allows the user to freely adjust the resistance experienced when squeezing the left and right support arms with both legs, offering practical and convenient advantages. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the new leg clamp.
[0016] Figure 2This is a schematic diagram of the new leg clamp in its first split-section state.
[0017] Figure 3 This is a schematic diagram of the new leg clamp in its second split-body state.
[0018] Figure 4 A schematic diagram of the new leg clamp's housing in a split-section state;
[0019] Figure 5 This is a schematic diagram of the knob structure of the new leg clamp.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1000. New type of leg clamp; 10. Housing; 101. Inner wall of the bottom; 102. Outer wall of the bottom; 20. Bracket; 201. Transfer hole; 202. Washer; 30. Left support arm; 301. Left clamping plate; 3011. Elastic surface layer; 40. Right support arm; 401. Right clamping plate; 50. Connecting seat; 60. Tension spring; 70. Screw; 80. Knob; 801. Through hole; 802. Nut; 803. Abutting side wall; 90. Control panel; 901. LED display; 902. Touch switch; 903. Circuit board; 100. Charging port; 1001. Battery; 110. Transparent part; 1101. Resistance value plate; 1102. Connecting rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of 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] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0024] Please refer to the following: Figures 1 to 5 As shown, Figure 1 A schematic diagram of the overall structure of the new leg clamp 1000; Figure 2 This is a schematic diagram of the new leg clamp 1000 in its first split state. Figure 3 A schematic diagram of the new leg clamp 1000 in its second split state; Figure 4 This is a schematic diagram of the housing 10 of the new leg clamp 1000 in a split state; Figure 5 This is a schematic diagram of the knob 80 structure of the new leg clamp 1000.
[0025] This utility model provides the following technical solution: a novel leg clamp 1000, comprising: a housing 10, with a bracket 20 disposed inside the housing 10; a connecting seat 50, movably located at the front end inside the bracket 20; a left support arm 30 and a right support arm 40, one end of the left support arm 30 being inclined and sequentially hinged to one side of the bracket 20 and one side of the connecting seat 50, and one end of the right support arm 40 being inclined and sequentially hinged to the other side of the bracket 20 and the other side of the connecting seat 50; a tension spring 60, housed in the middle and rear end inside the bracket 20, with one end of the tension spring 60 connected to the connecting seat 50 and the other end connected to a screw 70; and a knob 80, rotatably disposed at the bottom end of the housing 10 and threadedly connected to the screw 70.
[0026] In the novel leg clamp 1000 provided in this embodiment, when the user uses it, both legs simultaneously squeeze the left support arm 30 and the right support arm 40. When the left support arm 30 and the right support arm 40 are simultaneously subjected to squeezing force, the left support arm 30 and the right support arm 40 together push the connecting seat 50 forward. When the connecting seat 50 moves forward, the tension spring 60 provides resistance so that the user's legs are resisted when squeezing the left support arm 30 and the right support arm 40 at the same time, thereby achieving the effect of exercising the user's leg muscles. When it is necessary to increase the resistance of the left support arm 30 and the right support arm 40, the user can manually turn the knob 80 clockwise. When the knob 80 is turned clockwise, the transmission screw 70 moves backward, thereby causing the tension spring 60 between the screw 70 and the connecting seat 50 to open to a greater length. Then, when the user squeezes the left support arm 30 and the right support arm 40 with both legs at the same time, the left support arm 30 and the right support arm 40 together push the connecting seat 50 forward. When the connecting seat 50 moves forward, the tension spring 60, which has opened to a greater length, provides greater resistance, thereby increasing the resistance experienced by the user when squeezing the left support arm 30 and the right support arm 40 with both legs at the same time. When it is necessary to reduce the resistance of the left support arm 30 and the right support arm 40, the user can manually turn the knob 80 counterclockwise. When the knob 80 is turned counterclockwise, the transmission screw 70 moves forward, thereby causing the tension spring 60 between the screw 70 and the connecting seat 50 to contract by a certain length. Then, when the user simultaneously squeezes the left support arm 30 and the right support arm 40 with both legs, the left support arm 30 and the right support arm 40 together push the connecting seat 50 forward. When the connecting seat 50 moves forward, the tension spring 60, which has contracted by a certain length, provides less resistance, thus reducing the resistance experienced by the user when squeezing the left support arm 30 and the right support arm 40 with both legs. In this utility model, the user can adjust the opening and closing of the tension spring 60 by turning the knob 80 to adjust the resistance provided by the tension spring 60 to the connecting seat 50. This allows the user to freely adjust the resistance experienced when squeezing the left support arm 30 and the right support arm 40 with both legs, which has the advantages of practicality and convenience.
[0027] In some embodiments, the knob 80 has a through hole 801 inside, and a nut 802 is fixedly installed in the through hole 801 of the knob 80. The knob 80 is threadedly connected to the screw 70 through the nut 802. The through hole 801 of the knob 80 is used for the screw 70 to pass through.
[0028] In practical implementation: When the knob 80 is rotated to drive the screw 70 to move forward or backward, the knob 80 drives the screw 70 to move forward or backward through the nut 802. The through hole 801 inside the knob 80 allows the screw 70 to pass through when moving backward. With this configuration, the knob 80 can effectively drive the screw 70 to move forward or backward.
[0029] In some embodiments, the front end of the knob 80 is embedded in the housing 10, the rear end of the knob 80 is located outside the housing 10, the bottom end of the bracket 20 is provided with a washer 202, and the front end face of the knob 80 is provided with a ring of abutting side wall 803. The knob 80 can be limited by abutting side wall 803 against the washer 202 at the bottom end of the bracket 20 or the inner wall of the bottom of the housing 10.
[0030] In specific implementation: When the knob 80 is rotated clockwise or counterclockwise to move the screw 70 forward or backward, the abutment wall 803 on the front end of the knob 80 abuts against the washer 202 at the bottom of the bracket 20 or the inner bottom wall 101 of the housing 10. This prevents the knob 80 from dislodging from the bottom of the housing 10, allowing the knob 80 to better receive the user's hand rotation force to move the screw 70 forward or backward, thereby driving the tension spring 60 to adjust the resistance. This design prevents the knob 80 from dislodging from the bottom of the housing 10 and ensures that the knob 80 is better received by the user's hand rotation force to move the screw 70 forward or backward, thereby driving the tension spring 60 to adjust the resistance.
[0031] In some embodiments, the other end of the left support arm 30 is rotatably connected to a left clamping plate 301, and the other end of the right support arm 40 is rotatably connected to a right clamping plate 401. The shapes of the left clamping plate 301 and the right clamping plate 401 are both arranged with long and short sides.
[0032] In practice: the user presses their legs against the left clamp 301 on the left support arm 30 and the right clamp 401 on the right support arm 40, respectively, thus exercising their legs by squeezing the left and right support arms 30 and 40. The left clamp 301 on the left support arm 30 is rotatably connected, allowing the user to adjust its angle to fit their left leg; similarly, the right clamp 401 on the right support arm 40 is rotatably connected, allowing the user to adjust its angle to fit their right leg. Both the left and right clamps 301 and 401 are designed with their long and short sides aligned, allowing them to be positioned horizontally or vertically against the user's legs to accommodate different training postures. This design allows the user to adjust the angle of the left and right clamps 301 and 401 to suit their leg positions.
[0033] In some embodiments, a resistance value plate 1101 is provided on the outside of the bracket 20. A moving hole 201 is provided on the bracket 20. The resistance value plate 1101 is connected to the connection between the screw 70 and the tension spring 60 through the moving hole 201 via a connecting rod 1102. The moving hole 201 has space for the connecting rod 1102 to move linearly. Several different resistance values are printed on the resistance value plate 1101. A transparent part 110 is provided on the outside of the housing 10. The transparent part 110 is used to correspond to the resistance values on the resistance value plate 1101.
[0034] In practical implementation: When the user rotates knob 80 to move screw 70 forward or backward to adjust the resistance provided by tension spring 60 to connecting seat 50, the screw 70 moves forward or backward, causing the resistance value plate 1101 on connecting rod 1102 to move forward or backward synchronously outside bracket 20. The moving hole 201 on bracket 20 provides space for linear movement of connecting rod 1102. The resistance values at different positions on resistance value plate 1101 correspond to the resistance of tension spring 60 at different lengths. Therefore, when resistance value plate 1101 is moved synchronously, the resistance value corresponding to the resistance of tension spring 60 is displayed on transparent part 110 on housing 10. This design allows the user to view the resistance value through transparent part 110 to know the resistance value of tension spring 60.
[0035] In some embodiments, a circuit board 903 is provided inside the housing 10, and a control panel 90 is provided outside the housing 10. The control panel 90 is electrically connected to the circuit board 903, and an LED display unit 901 and a touch switch unit 902 are integrated on the control panel 90.
[0036] In practice: the control panel 90 operates via the circuit board 903, the touch switch 902 allows the user to turn the control panel 90 on or off, and the LED display 901 displays the usage time or usage count of the new leg clamp 1000. This configuration allows the control panel 90 to be used by the user in multiple ways.
[0037] In some embodiments, a battery 1001 is provided inside the housing 10, and a charging port 100 is provided outside the housing 10. The charging port 100 is electrically connected to the battery 1001, and the battery 1001 is electrically connected to the control panel 90.
[0038] In practical implementation: battery 1001 is used to power control panel 90, and charging port 100 is used to connect an external charger to charge battery 1001. This configuration enables the new leg clamp 1000 to have a power-on function.
[0039] In some embodiments, the inner side of the left clamping plate 301 and the inner side of the right clamping plate 401 are provided with an elastic surface layer 3011.
[0040] In practical implementation: When the user's legs exert force and compress against the inner surfaces of the left clamp 301 and the right clamp 401 respectively, the elastic surface layers 3011 on the inner surfaces of the left clamp 301 and the right clamp 401 can respectively cushion and protect the user's legs from wear. This design ensures that the elastic surface layers 3011 on the inner surfaces of both the left clamp 301 and the right clamp 401 provide cushioning protection for the user's legs.
[0041] The material of the aforementioned elastic surface layer 3011 can be one or more of silicone, rubber and sponge.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A novel leg clamp, characterized in that, include: A housing, wherein a support is provided inside the housing; The connecting seat is movably located at the front end inside the bracket; The left support arm and the right support arm are provided. One end of the left support arm is inclined and hinged to one side of the bracket and one side of the connecting seat in sequence. One end of the right support arm is inclined and hinged to the other side of the bracket and the other side of the connecting seat in sequence. A tension spring is housed inside the rear end of the bracket, with one end connected to the connecting seat and the other end connected to a screw. A knob, rotatable, is located at the bottom end of the housing and is threadedly connected to the screw.
2. The novel leg clamp according to claim 1, characterized in that, The knob has a through hole inside, and a nut is fixed in the through hole. The knob is threadedly connected to the screw through the nut. The through hole of the knob is used for the screw to pass through.
3. The novel leg clamp according to claim 1, characterized in that, The front end of the knob is embedded in the housing, and the rear end of the knob is located outside the housing. The bottom end of the bracket is provided with a washer, and the front end face of the knob is provided with a ring of abutting side wall. The knob can be limited by abutting side wall against the washer at the bottom end of the bracket or the inner wall of the bottom of the housing.
4. The novel leg clamp according to claim 1, characterized in that, The left support arm is rotatably connected to a left clamping plate at the other end, and the right support arm is rotatably connected to a right clamping plate at the other end. The left clamping plate and the right clamping plate are both arranged with long and short sides.
5. The novel leg clamp according to claim 1, characterized in that, The bracket has a corresponding resistance value plate on its exterior. The bracket has a movement hole. The resistance value plate is connected to the connection between the screw and the tension spring via a connecting rod that passes through the movement hole. The movement hole has space for the connecting rod to move linearly. The resistance value plate has several different resistance values printed on it. The outer shell has a transparent part that corresponds to the resistance value on the resistance value plate.
6. The novel leg clamp according to claim 1, characterized in that, The housing contains a circuit board, and the housing contains a control panel. The control panel is electrically connected to the circuit board, and the control panel integrates an LED display and a touch switch.
7. The novel leg clamp according to claim 6, characterized in that, The housing contains a battery, and the housing has a charging port on the outside. The charging port is electrically connected to the battery, and the battery is electrically connected to the control panel.
8. The novel leg clamp according to claim 4, characterized in that, Both the inner sides of the left clamping plate and the inner sides of the right clamping plate are provided with elastic surface layers.