Sliding support frame and body builder

Abstract

The utility model discloses a sliding support frame and fitness equipment relates to fitness equipment field, it includes box body, roller subassembly, handle and locking subassembly, box body sleeve is provided outside the support, roller subassembly is provided inside box body and is used for rolling support with support, locking subassembly is provided on box body and is used for fixing box body, handle is provided outside box body. According to the utility model, the handle and the locking assembly are separately arranged, and the locking assembly and the handle need to be operated respectively when the position of the box body is adjusted, so that the risk of accidental unlocking caused by touching the locking assembly during non-active operation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, and in particular to a sliding support frame and fitness machine. Background Technology

[0002] When using fitness equipment, it is usually necessary to adjust the height of the equipment components to make the equipment suitable for people of different heights. At the same time, when training different muscle groups, the height of the equipment also needs to be adjusted to the appropriate position. Therefore, as a frequently used component on fitness equipment, the ease of operation of the sliding support frame directly affects the user experience of the fitness equipment.

[0003] Currently, a Chinese patent application with publication number CN 211525344 U and publication date of September 18, 2020, proposes a sliding adjustment device, including a sliding frame with a positioning hole on one side, a pin shaft that matches the positioning hole, and an L-shaped adjustment handle. The free end of one arm of the adjustment handle is rotatably connected to the sliding frame, and the other arm extends substantially along the movement direction of the sliding frame. The end of the pin shaft away from the sliding frame is hinged to the adjustment handle.

[0004] When in use, as the adjustment handle is rotated, the pin shaft is pulled out or inserted into the positioning hole by the action of one arm of the adjustment handle.

[0005] Regarding the aforementioned technologies, since the adjustment handle is directly exposed to the operating environment and the position of the half-moon plate connecting the adjustment handle and the pin shaft cannot be locked, there is a risk that accidentally touching the adjustment handle may pull the pin shaft out of the positioning hole, thereby causing the sliding frame to fall downwards. Utility Model Content

[0006] In order to reduce the probability of the sliding frame falling when not actively adjusted and to improve the safety of the equipment, this utility model provides a sliding support frame and fitness equipment.

[0007] First aspect: This utility model provides a sliding support frame, which adopts the following technical solution:

[0008] A sliding support frame includes a housing, a roller assembly, a handle, and a locking assembly. The housing is sleeved on the outside of the support frame. The roller assembly is disposed inside the housing for rolling support with the support frame. The locking assembly is disposed on the housing for fixing the housing. The handle is disposed on the outside of the housing.

[0009] By adopting the above technical solution, the box body forms rolling contact with the support through the roller assembly, which reduces sliding resistance. The locking component can actively lock the position of the box body, allowing it to support other components on the fitness equipment. When adjusting the support height, the box body is moved by pulling the handle, which, in conjunction with the roller assembly, allows for smooth sliding. Once adjusted, the locking component secures the box body in place. When the locking component is locked to the support and the box body cannot be easily moved, shaking the handle causes the box body and support to wobble relative to each other, effectively loosening the lock. This roller assembly allows the box body to slide smoothly on the support, while separating the handle and locking component, requiring separate operation of both when adjusting the box body's position, reduces the risk of accidental unlocking due to accidental contact with the locking component during non-active operation.

[0010] Optionally, the roller assembly includes four rollers, the axes of the four rollers are arranged in parallel and horizontally, and the four rollers are respectively rotatably arranged at the four corners of the box.

[0011] By adopting the above technical solution, four rollers are symmetrically distributed at the corners of the box to form a stable support structure, and the parallel arrangement of the horizontal axis ensures the consistency of the rolling direction. During sliding, the four rollers simultaneously contact the bracket to form a quadrilateral support surface, which can improve the stability of the box when it moves. This four-roller layout not only improves the load-bearing strength, but also makes the sliding process more stable and reliable.

[0012] Optionally, the roller includes a roller shaft portion and an abutment portion. Two abutment portions are provided, and the two abutment portions are respectively fixedly disposed at both ends of the roller shaft portion. The roller shaft portion is rotatably disposed on the box body, and the abutment portion is used to make rolling contact with the bracket.

[0013] By adopting the above technical solution, when the roller rotates, the roller shaft section assumes the function of rotating the roller on the box body, and the abutment sections on both sides clamp onto both sides of the bracket to form a limiting structure, enabling the roller shaft section to provide stable rotational support for the abutment sections. In this way, the abutment section structure set at both ends can not only effectively prevent the roller from swaying and improve stability, but also improve the reliability of rolling contact by supporting the abutment sections through the roller shaft section.

[0014] Optionally, the end face of the abutment portion facing the bracket is provided as a conical surface.

[0015] By adopting the above technical solution, the conical surface structure of the contact part can achieve automatic repositioning after the box body shifts. Furthermore, when the bracket has slight deformation or installation errors, the conical surface contact can create an automatic centering alignment effect, reducing the probability of one side of the contact part contacting the bracket and causing surface friction when the box body shifts, thus further reducing frictional resistance. This conical surface design not only improves adaptability to brackets of different specifications but also optimizes rolling contact performance.

[0016] Optionally, the locking assembly includes a guide cylinder and a pull pin. The guide cylinder is fixedly mounted on the housing, and its axis is horizontally positioned. The axis of the guide cylinder is perpendicular to the axis of the roller. The pull pin is slidably mounted inside the guide cylinder and is used to engage with a positioning hole on the bracket.

[0017] By adopting the above technical solution, when the horizontally positioned guide cylinder aligns with the positioning hole, pulling the pin slides along the guide cylinder, inserting the pin into the positioning hole to lock the box onto the bracket. When the pin moves horizontally, the guide cylinder provides radial restraint, ensuring accurate alignment between the pin and the positioning hole. This horizontal pin-pulling locking method decouples the unlocking operation from the sliding direction, reducing the possibility of misoperation.

[0018] Optionally, a first limiting member is provided at the end of the guide cylinder away from the bracket, the first limiting member extending toward the interior of the guide cylinder, and a second limiting member is provided at the end of the pull pin close to it, the second limiting member being slidably disposed inside the guide cylinder, the first limiting member and the second limiting member being configured in cooperation.

[0019] By adopting the above technical solution, the first limiting member and the second limiting member cooperate to form a sliding limiting mechanism; the first limiting member serves as a fixed limiting surface, and the second limiting member serves as a movable limiting surface. The cooperation of the two can accurately control the stroke range of the pull pin, reduce the probability of the pull pin coming out of the guide cylinder, prevent excessive stretching from damaging the components, and improve the working reliability of the locking mechanism.

[0020] Optionally, an elastic element is provided between the first limiting member and the second limiting member, the elastic element having a tendency to move the first limiting member and the second limiting member away from each other.

[0021] By adopting the above technical solution, the preload provided by the elastic element keeps the pull pin in a normally closed and locked state; when unlocking is required, the spring force must be overcome to pull the pull pin out of the positioning hole. After releasing, the spring automatically resets and locks, which can effectively prevent the pull pin from being accidentally unlocked due to vibration or accidental contact, and significantly improve the safety protection performance of the locking component.

[0022] Optionally, a handle is fixedly provided at the end of the pull pin away from the bracket.

[0023] By adopting the above technical solution, the external handle provides the operator with a clear point of force application, making it easier to grip and exert force, thus making the pin operation more effortless and directional. At the same time, the handle can also serve as a visual indicator of the locking mechanism's position. In this way, the external handle not only improves operational convenience but also enhances the interactivity of the equipment.

[0024] Optionally, a nameplate is also provided on the outside of the box.

[0025] By adopting the above technical solutions, the nameplate can directly display product parameters and safety warning information; by integrating the labeling information on the surface of the box, it is convenient for users to quickly obtain instructions and precautions, thus enhancing the product's information communication function and safe usage guidance.

[0026] Secondly, this utility model provides a fitness device, which adopts the following technical solution:

[0027] A fitness device includes a support frame and a sliding support frame as described in the first aspect, wherein the support frame has a positioning hole in the vertical direction, the housing is sleeved on the outside of the support frame, and the locking component is used to engage with the positioning hole for locking.

[0028] By adopting the above technical solution, the sliding support frame and the bracket with positioning holes form a complete lifting system. When adjusting the height, the box slides along the bracket to the target position, and the locking component automatically engages with the corresponding positioning hole to lock, forming a rigid connection. This combination structure enables the fitness equipment to have a safe and reliable height adjustment function, while maintaining a compact structure and convenient operation.

[0029] In summary, this utility model has at least one of the following beneficial technical effects:

[0030] By separating the handle and locking component, adjusting the position of the box requires operating the locking component and handle separately, reducing the risk of accidental unlocking caused by touching the locking component during non-active operation.

[0031] By setting four support rollers at the four corners of the box, combined with the conical abutment design at both ends of the rollers, the box and the support column can make rolling contact. The synchronous rolling of the four rollers can distribute the load pressure, and the conical structure of the rollers can automatically compensate for the size deviation of the support, so that the rollers can slide smoothly on the support.

[0032] The horizontal guide cylinder and pull pin work together to achieve guiding and limiting functions, so that the pull pin can be more accurately aligned with the positioning hole on the bracket, and it is easy for the pull pin to lock with the positioning hole. By setting an elastic element between the guide cylinder and the pull pin, the pull pin can self-lock under the action of the elastic element. When the equipment is vibrated or accidentally touched, the elastic self-locking mechanism automatically keeps the pin in the inserted state, reducing the safety risk caused by the pull pin accidentally coming out. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the overall structure of the sliding support frame according to an embodiment of this application;

[0035] Figure 3 yes Figure 2 Another perspective illustration;

[0036] Figure 4 A top view of the sliding support frame according to an embodiment of this application;

[0037] Figure 5 yes Figure 4 AA section view;

[0038] Figure 6 This is an exploded view of the locking component structure according to an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the roller structure according to an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 100, box body; 110, handle; 120, nameplate; 200, roller assembly; 210, roller; 211, roller shaft part; 212, abutment part; 300, locking assembly; 310, guide cylinder; 311, first limiting member; 320, pull pin; 321, second limiting member; 322, handle; 330, elastic member; 400, bracket; 401, positioning hole. Detailed Implementation

[0041] The following combination Figures 1 to 7 The present invention will be described in further detail below.

[0042] This utility model discloses a fitness device. (Refer to...) Figures 1 to 3 A fitness device mainly includes two rectangular supports 400 and sliding support frames respectively mounted on the two supports 400. The sliding support frame includes a rectangular box 100, a roller assembly 200 rotatably mounted on the box 100, and a locking assembly 300. The box 100 is fitted outside the supports 400 of the fitness device. The roller assembly rolls in contact with the outer wall of the support frame, allowing the box 100 to slide vertically along the supports 400 outside the supports 400 via the roller assembly. Multiple positioning holes 401 are provided vertically at the front of the supports 400. By engaging the locking assembly 300 on the box 100 with the positioning holes 401, the sliding support frame can be fixed at a set height on the supports 400. Then, by mounting pulley groups and other accessories such as counterweights or support rods on the two sliding support frames, it can be used as a fitness device.

[0043] Reference Figure 3 and Figure 4 The box body 100 is formed by fixing four steel plates (front, back, left, and right) with screws to form a square cylindrical structure. The left and right side plates of the box body 100 have four sets of mounting holes symmetrically opened. The four sets of mounting holes are respectively opened at the four corners of the left and right side plates for installing the roller assembly 200.

[0044] Reference Figures 4 to 6 A handle 110 and a locking assembly 300 are fixedly mounted on the steel plate in front of the box body 100. The locking assembly 300 includes a welded and fixed guide cylinder 310, a pull pin 320, and an elastic element 330. Specifically, a through hole is provided in the middle of the steel plate in front of the box body 100. The guide cylinder 310 is coaxially arranged with the through hole, and the axis of the guide cylinder 310 is horizontal. The guide cylinder 310 is fixedly mounted on the steel plate in front of the box body 100 by welding. A first limiting member 311 is provided at the end of the guide cylinder 310 away from the bracket 400. The first limiting member 311 is an annular structure with a diameter smaller than that of the guide cylinder 310. The first limiting member 311 is threaded onto the guide cylinder 310. The pull pin 320 passes through the first limiting member. In the middle hole of 311, the pull pin 320 is provided with a second limiting member 321 that cooperates with the first limiting member 311 at one end near the bracket 400. The second limiting member 321 is a cap-shaped structure that is threadedly connected to the pull pin 320. The second limiting member 321 and the pull pin 320 are slidably disposed inside the guide cylinder 310. The outer peripheral surface of the second limiting member 321 is in sliding contact with the inner peripheral surface of the guide cylinder 310, so that the cooperation between the second limiting member 321 and the first limiting member 311 can play a limiting role. In this embodiment, the elastic member 330 is a spring. The elastic member 330 is sleeved on the pull pin 320, and the two ends of the elastic member 330 respectively abut against the opposite end faces of the first limiting member 311 and the second limiting member 321.

[0045] Reference Figure 5 and Figure 6 To facilitate gripping the pull pin 320, a handle 322 is provided at the end of the pull pin 320 away from the second limiting member 321. The handle 322 is a cap-shaped structure that is fixed on the pull pin 320 by threads. Under normal conditions, pulling the handle 322 will move the pull pin 320.

[0046] Reference Figure 5 The handle 110 is welded to a cylindrical structure on the front steel plate of the box body 100. The two ends of the handle 110 are welded to the front steel plate of the box body 100 through two steel plates, so that there is a movement distance between the handle 110 and the pull pin 320.

[0047] When the height needs to be adjusted, the operator first pulls the pull pin 320 to pull the pull pin 320 out of the positioning hole 401 of the bracket 400, so that the sliding support frame can slide relative to the bracket 400. Then, the operator holds the handle 110 and pulls it upward. At this time, the sliding support frame rises and falls smoothly in the vertical direction along the bracket 400. When the height is adjusted to the appropriate position, the operator releases the pull pin 320. Under the action of the elastic element 330, the pull pin 320 automatically inserts into the positioning hole 401 of the bracket 400, thereby locking the position of the sliding support frame and the bracket 400.

[0048] Reference Figure 3 and Figure 5 To facilitate the display of usage and operation information of the sliding support frame, an aluminum alloy nameplate 120 is riveted to the steel plate at the rear of the box 100. The nameplate 120 is printed with load-bearing parameters and safety warning information. Other markings and patterns can also be set on the nameplate 120 to prove product information.

[0049] Reference Figure 5 and Figure 7 The roller assembly 200 includes four rollers 210 of the same specification. The axes of the four rollers 210 are parallel and horizontally arranged, and the two ends of the four rollers 210 are respectively installed in four sets of mounting holes on the left and right side plates of the housing 100 through bearings.

[0050] Reference Figure 7 Each roller 210 includes a cylindrical roller shaft portion 211 and two abutment portions 212. The abutment portions 212 are fixed at both ends of the roller shaft portion 211 by snap rings. The conical surface of the abutment portion 212 forms point contact with the side wall of the bracket 400. When the box body 100 shifts, the conical surface structure can automatically correct the position of the roller 210.

[0051] The implementation principle of the sliding support frame and fitness device of this utility model is as follows: In the normal locked state, the pull pin 320 is kept inserted into the positioning hole 401 under the action of the spring, and the box body 100 and the support 400 form a rigid constraint under the support of the pull pin 320; when it is necessary to adjust the height of the box body 100, pull the handle 322 outward to make the pull pin 320 exit the positioning hole 401, at which time the box body 100 can slide freely along the support 400; after the box body 100 is adjusted to the set height, release the handle 322, and the spring pushes the pull pin 320 to automatically insert into the corresponding positioning hole 401 to complete the locking; if the pull pin 320 gets stuck in the positioning hole 401, the operator can shake the handle 110 up and down to make the box body 100 and the support 400 shake relative to each other, effectively releasing the pull pin 320 from getting stuck.

[0052] In summary, by separating the handle 110 from the locking component 300, this application requires operating both the locking component 300 and the handle 110 separately when adjusting the position of the box 100, thus reducing the risk of accidental unlocking due to contact with the locking component 300 during non-active operation. Furthermore, by providing four supporting rollers 210 on the box 100, the load pressure on the box 100 can be distributed. Combined with the conical contact portions 212 at both ends of the rollers 210, the dimensional deviation of the bracket 400 can be automatically compensated, allowing the rollers 210 to slide smoothly on the bracket 400. The process is smooth and stable; the horizontal guide cylinder 310 and the pull pin 320 work together to achieve guiding and limiting functions, so that the pull pin 320 can be more accurately aligned with the positioning hole 401 on the bracket 400, which facilitates the locking of the pull pin 320 with the positioning hole 401; by setting an elastic element 330 between the guide cylinder 310 and the pull pin 320, the pull pin 320 can be self-locked under the action of the elastic element 330, so that when the equipment is vibrated or accidentally touched, the elastic self-locking mechanism automatically keeps the pin in the inserted state, reducing the safety risk caused by the pull pin 320 accidentally coming out.

[0053] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made according to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A sliding support frame, characterized by, The utility model relates to a slide support frame, including: Box body (100), gyro wheel subassembly (200), handle (110) and locking assembly (300), the box body (100) is set outside the support (400), the gyro wheel subassembly (200) is set inside the box body (100) is used for and support (400) rolling support, the locking assembly (300) is set on the box body (100) is used for fixed the box body (100), the handle (110) is set outside the box body (100).

2. The sliding support frame according to claim 1, wherein: The gyro wheel subassembly (200) includes four gyro wheels (210), the axis of four gyro wheels (210) is parallelly arranged, and the axis of gyro wheel (210) is horizontally arranged, four gyro wheels (210) are rotatably arranged at four corner positions of the box body (100) respectively.

3. A sliding support frame according to claim 2, wherein: The gyro wheel (210) includes roller shaft part (211) and abutment part (212), the abutment part (212) is provided with two, two abutment parts (212) are fixedly arranged at both ends of the roller shaft part (211) respectively, the roller shaft part (211) is rotatably arranged on the box body (100), and the abutment part (212) is used for rolling contact with support (400).

4. The slide support frame of claim 3, wherein: The end face of the abutment part (212) towards the support (400) is conical surface arrangement.

5. A sliding support frame according to any one of claims 2 to 4, wherein: The locking assembly (300) includes guide cylinder (310) and draw bolt (320), the guide cylinder (310) is fixedly arranged on the box body (100), the axis of the guide cylinder (310) is horizontally arranged, the axis of the guide cylinder (310) is perpendicularly arranged with the axis of gyro wheel (210), the draw bolt (320) is slidably arranged in the guide cylinder (310), and the draw bolt (320) is used for cooperating with the positioning hole (401) on the support (400).

6. A sliding support frame according to claim 5, wherein: The end of the guide cylinder (310) away from the support (400) is provided with a first limiting part (311), the first limiting part (311) extends towards the inside of the guide cylinder (310), one end of the draw bolt (320) close to the other end is provided with a second limiting part (321), the second limiting part (321) is slidably arranged in the guide cylinder (310), and the first limiting part (311) and the second limiting part (321) are cooperatively arranged.

7. A sliding support frame according to claim 6, wherein: The elastic element (330) is arranged between the first limiting part (311) and the second limiting part (321), and the elastic element (330) has a tendency to move the first limiting part (311) and the second limiting part (321) away from each other.

8. A sliding support frame according to claim 7, wherein: The end of the draw bolt (320) away from the support (400) is fixedly provided with a handle (322).

9. A sliding support frame according to any one of claims 1 to 4, wherein: The box body (100) is further provided with a nameplate (120) outside.

10. An exercise machine characterized by, The utility model relates to a slide support frame, including: Support (400) and the slide support frame of any one of claims 1-9, the positioning hole (401) is arranged on the support (400) in the vertical direction, the box body (100) is set outside the support (400), and the locking assembly (300) and the positioning hole (401) are cooperatively arranged for locking.

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