Back cushion adjusting structure and fitness equipment

Abstract

The utility model discloses a back cushion adjusting structure and fitness equipment, and belongs to the technical field of fitness equipment. The back cushion adjusting structure comprises a supporting seat, a supporting rod is rotationally connected to the upper portion of the supporting seat, an adjusting plate is connected to the lower portion of the supporting rod, a communicating groove and a plurality of positioning grooves are formed in the middle of the adjusting plate, and the positioning grooves are formed above the communicating groove and communicate with the communicating groove; an adjusting rod is arranged below the supporting rod, one end of the adjusting rod is rotationally connected with the supporting base, a limiting rod is installed at the other end of the adjusting rod and located in the communicating groove, a first fixing plate and a second fixing plate are arranged below the limiting rod, the first fixing plate and the second fixing plate are both in sliding connection with the adjusting plate, and the first fixing plate is in sliding connection with the second fixing plate; the first fixing plate and the second fixing plate are matched to respectively present a first state and a second state, and in the first state, position adjustment of upward rotation of the supporting rod can be realized; and in the second state, the supporting rod can be rotated to be horizontal, and the first state is recovered.

Description

Technical Field

[0001] This application relates to the field of fitness equipment technology, and more specifically, to a cushion adjustment structure and fitness equipment. Background Technology

[0002] As living standards improve, more and more people are using fitness equipment for exercise. For example, a sit-up bench is a type of fitness equipment used for abdominal exercises such as sit-ups. It typically consists of an inclined board and support, allowing users to exercise at different angles.

[0003] A search revealed that Chinese patent CN212090722U discloses an automatic displacement mechanism for the force point of a support frame and a fitness device. When the user adjusts the angle of the backrest support frame, the lower backrest adjustment frame will move in conjunction with it, causing the free end of the backrest adjustment frame equipped with the spindle to move up and down along the rear support frame. When the required angle is reached, the end equipped with the spindle will automatically engage with the teeth of the rear adjustment plate.

[0004] When using the above-mentioned adjustment structure, if the user needs to lay the cushion flat, the cushion adjustment frame needs to be turned, making it difficult to adjust with one hand and causing inconvenience to the user. In view of this, we propose a cushion adjustment structure and fitness equipment. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide a cushion adjustment structure and fitness equipment to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] This application is achieved through the following technical solution:

[0009] A cushion adjustment structure includes a support base, a support rod rotatably connected to the upper part of the support base, an adjustment plate connected to the lower part of the support rod, a connecting groove and a plurality of positioning grooves in the middle of the adjustment plate, the positioning grooves being disposed above the connecting groove and communicating with the connecting groove;

[0010] An adjusting rod is provided below the support rod. One end of the adjusting rod is rotatably connected to the support base, and a limiting rod is installed at the other end. The limiting rod is located in the communicating groove. A first fixing plate and a second fixing plate are provided below the limiting rod. The first fixing plate and the second fixing plate are slidably connected to the adjusting plate. The length of the first fixing plate is less than the length of the second fixing plate. Baffles are provided at both ends of the adjusting plate.

[0011] The first fixing plate has a vertical groove, and the second fixing plate has a guide groove. The guide groove includes an inclined part and a horizontal part that are connected to each other. The limiting rod is slidably disposed in the vertical groove and the guide groove. A compressed elastic element is provided between the first fixing plate and the limiting rod.

[0012] As an optional solution to the technical solution of this application, the adjustment plate is L-shaped and there are two adjustment plates. The two adjustment plates are fixed on both sides of the support rod in a symmetrical structure, and the first fixing plate and the second fixing plate are slidably disposed between the two adjustment plates.

[0013] As an optional solution to the technical solution of this application, both the first fixing plate and the second fixing plate are U-shaped, and the second fixing plate is slidably disposed inside the first fixing plate.

[0014] As an optional solution to the technical solution of this application, the elastic element is a bent spring sheet, and a fixed shaft is fixedly connected to the bent part of the elastic element. The fixed shaft is connected and fixed to the first fixed plate, and an avoidance groove is provided on the second fixed plate. The fixed shaft passes through the avoidance groove and is slidably connected to it.

[0015] As an optional solution to the technical solution in this application, a cushion is fixedly installed on the upper part of the support rod.

[0016] As an optional solution to the technical solution in this application, the lower part of the positioning groove is inclined toward the support base.

[0017] 3. Beneficial effects

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

[0019] This application uses a first fixing plate and a second fixing plate to present a first state and a second state respectively. In the first state, the support rod can be rotated upward to adjust its position; in the second state, the support rod can be rotated to a horizontal position and returned to the first state, which makes it convenient for the user to adjust the angle of the support rod with one hand, increasing the convenience of using fitness equipment with this structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a cushion adjustment mechanism;

[0021] Figure 2 This is an exploded view of the overall structure of a cushion adjustment mechanism.

[0022] Figure 3 This is a schematic diagram of the assembly structure of the first and second fixing plates of a cushion adjustment structure;

[0023] Figure 4This is a schematic diagram of the first and second fixing plates of a cushion adjustment structure in its first state.

[0024] Figure 5 This is a schematic diagram of the second state of the first and second fixing plates of a cushion adjustment structure.

[0025] In the diagram: 1. Support base; 2. Support rod; 3. Adjusting plate; 301. Connecting groove; 302. Positioning groove; 303. Baffle; 4. Adjusting rod; 5. Limiting rod; 6. First fixing plate; 601. Vertical groove; 602. Elastic element; 603. Fixed shaft; 7. Second fixing plate; 701. Guide groove; 702. Clearance groove. Detailed Implementation

[0026] The technical solution of this application will now be clearly and completely described in conjunction with the accompanying drawings.

[0027] Example 1:

[0028] Please see Figure 1 and Figure 2 This application provides a cushion adjustment structure, including a support base 1, a support rod 2 rotatably connected to the upper part of the support base 1, an adjustment plate 3 connected to the lower part of the support rod 2, a connecting groove 301 and a plurality of positioning grooves 302 opened in the middle of the adjustment plate 3, the positioning grooves 302 are arranged above the connecting groove 301 and communicate with the connecting groove 301; an adjustment rod 4 is provided below the support rod 2, one end of the adjustment rod 4 is rotatably connected to the support base 1, and a limit rod 5 is installed at the other end, the limit rod 5 is located in the connecting groove 301.

[0029] When the user rotates the support rod 2 upwards, the limiting rod 5 can move from the positioning groove 302 to the connecting groove 301. The upper end of the adjusting rod 4 will move towards the lower end of the support rod 2 along the connecting groove 301 with the help of the limiting rod 5. By releasing the support rod 2, the support rod 2 moves downwards, and the limiting rod 5 can enter the positioning groove 302. This allows the adjusting rod 4 to be supported between the support base 1 and the support rod 2 with the help of the limiting rod 5, thereby adjusting the position of the support rod 2.

[0030] Preferably, a cushion is fixedly installed on the upper part of the support rod 2, and the lower part of the positioning groove 302 is inclined to the support seat 1, so that the limiting rod 5 can smoothly enter the positioning groove 302.

[0031] like Figure 3As shown, a first fixing plate 6 and a second fixing plate 7 are provided below the limiting rod 5. The first fixing plate 6 and the second fixing plate 7 are slidably connected to the adjusting plate 3. The length of the first fixing plate 6 is less than the length of the second fixing plate 7. Both ends of the adjusting plate 3 are provided with baffles 303. A vertical groove 601 is provided on the first fixing plate 6, and a guide groove 701 is provided on the second fixing plate 7. The guide groove 701 includes an inclined part and a horizontal part that are connected to each other. The limiting rod 5 is slidably disposed in the vertical groove 601 and the guide groove 701. A compressed elastic element 602 is provided between the first fixing plate 6 and the limiting rod 5.

[0032] Preferably, the adjusting plate 3 is L-shaped, and there are two adjusting plates 3. The two adjusting plates 3 are symmetrically fixed on both sides of the support rod 2. The first fixing plate 6 and the second fixing plate 7 are slidably disposed between the two adjusting plates 3. The first fixing plate 6 and the second fixing plate 7 are both U-shaped, and the second fixing plate 7 is slidably disposed inside the first fixing plate 6. The elastic element 602 is a bent spring sheet. The bent part of the elastic element 602 is fixedly connected to the fixing shaft 603. The fixing shaft 603 is connected and fixed to the first fixing plate 6. The second fixing plate 7 is provided with a relief groove 702. The fixing shaft 603 passes through the relief groove 702 and is slidably connected to it.

[0033] like Figure 4 As shown, the first fixing plate 6 and the second fixing plate 7 are in the first state; the inclined portions of the vertical groove 601 and the guide groove 701 coincide, and the vertical movement of the limiting rod 5 is not affected; under the push of the elastic element 602, the limiting rod 5 will remain in the upper part of the vertical groove 601; when the supporting rod 2 is supported upward, the limiting rod 5 can move downward along the inner wall of the positioning groove 302 and compress the elastic element 602. When the limiting rod 5 moves to the position of the next positioning groove 302, the elastic element 602 can push the limiting rod 5 upward into the positioning groove 302 and make a clicking sound. When the supporting rod 2 is released, the position of the supporting rod 2 can be fixed.

[0034] like Figure 5 As shown, the first fixing plate 6 and the second fixing plate 7 are in the second state. Since the length of the first fixing plate 6 is shorter than that of the second fixing plate 7, when the limiting rod 5 moves to the lower end of the adjusting plate 3, the second fixing plate 7 will first contact the baffle 303, so that the first fixing plate 6 can move downward relative to the second fixing plate 7. The first fixing plate 6 can push the limiting rod 5 down along the inclined part of the guide groove 701 to the horizontal part. Under the action of the elastic element 602, the limiting rod 5 can be fixed in the horizontal part of the guide groove 701, so that the limiting rod 5 is always located at the bottom of the vertical groove 601. In this state, the limiting rod 5 can slide along the connecting groove 301 without entering the positioning groove 302.

[0035] When the support rod 2 rotates downward to the horizontal state, the second fixing plate 7 will first abut against the baffle 303 at the other end of the adjusting plate 3, so that the first fixing plate 6 and the second fixing plate 7 move relative to each other, and the limiting rod 5 can move from the horizontal part of the guide groove 701 to the inclined part, and be held at the top of the vertical groove 601 under the action of the elastic element 602, and return to the first state.

[0036] Example 2

[0037] This application discloses a fitness device that uses a cushion adjustment structure described in Example 1. Preferably, the fitness device is a supine board.

Claims

1. A cushion adjustment structure, characterized in that: Including support seat (1), support rod (2) is rotatably connected on the upper portion of support seat (1), adjusting plate (3) is connected on the lower portion of support rod (2), the middle portion of adjusting plate (3) is provided with communication groove (301) and multiple positioning grooves (302), the positioning groove (302) is arranged above the communication groove (301) and is communicated with the communication groove (301); The lower portion of support rod (2) is provided with adjusting rod (4), one end of adjusting rod (4) is rotatably connected with support seat (1), the other end is installed with limiting rod (5), limiting rod (5) is located in communication groove (301), the lower portion of limiting rod (5) is provided with first fixed plate (6) and second fixed plate (7), first fixed plate (6) and second fixed plate (7) are slidably connected with adjusting plate (3), first fixed plate (6) is slidably connected with second fixed plate (7), the length of first fixed plate (6) is less than the length of second fixed plate (7), the both ends of adjusting plate (3) are provided with baffle (303); The vertical groove (601) is formed on the first fixed plate (6), the guide groove (701) is formed on the second fixed plate (7), the guide groove (701) includes inclined part and horizontal part which are communicated with each other, limiting rod (5) is slidably arranged in vertical groove (601) and guide groove (701), the elastic element (602) is arranged between first fixed plate (6) and limiting rod (5).

2. The cushion adjusting structure according to claim 1, wherein: The adjusting plate (3) is arranged in L shape, the adjusting plate (3) is provided with two, the two adjusting plates (3) are fixed on the both sides of support rod (2) in symmetrical structure, the first fixed plate (6) and the second fixed plate (7) are slidably arranged between the two adjusting plates (3).

3. The cushion adjusting structure according to claim 1, wherein: The first fixed plate (6) and the second fixed plate (7) are arranged in U shape, the second fixed plate (7) is slidably arranged in the first fixed plate (6).

4. The cushion adjusting structure according to claim 1, wherein: The elastic element (602) is a bent elastic piece, the fixed shaft (603) is fixedly connected with the bending portion of elastic element (602), the fixed shaft (603) is fixedly connected with the first fixed plate (6), the avoiding groove (702) is formed on the second fixed plate (7), the fixed shaft (603) passes through the avoiding groove (702) and is slidably connected with the avoiding groove (702).

5. The cushion adjusting structure according to claim 1, characterized in that: The support rod (2) is fixedly installed with a back cushion on the upper portion.

6. The cushion adjusting structure according to claim 1, wherein: The lower portion of positioning groove (302) is inclined to one side of support seat (1).

7. An exercise machine characterized by: The back cushion adjusting structure is adopted. The back cushion adjusting structure is adopted.

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