Multifunctional back trainer

Abstract

The utility model provides a multifunctional back training device belongs to fitness equipment technical field to solve the existing multifunctional back training device, the user perspires and is easy to remain in the cushion, handle, influences the follow -up experience. Although adds seat cover and so on clean, but seat cover replacement is complicated, and when moving, easy to shift and interfere with training action's problem. Including training device main part, support frame, cushion, seat cover, drive board, limit component and suspension assembly, support frame fixed mounting in training device main part one side, the cushion fixed mounting is in support frame top, the seat cover is set up in the cushion outside, drive board sliding connection is in support frame outside, limit component setting is in drive board outside, suspension assembly sets up in the cushion bottom. The utility model has the advantages of simple operation, avoids displacement, improves training safety etc.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment technology, and more specifically, it relates to a multifunctional back trainer. Background Technology

[0002] In the fitness field, back muscle training is a crucial component, with common exercises including lat pulldowns and seated cable pulls. Existing multi-functional back trainers primarily consist of a base, support frame, weight rack, steel cables, and a pulley system. During training, the user sits on the cushion, extends their arms to grip the handles, and applies force to pull the steel cables. This force is transmitted through multiple precision pulleys, causing the weight rack to slide smoothly along guide tracks within the support frame, enabling controlled load training. This design not only strengthens back muscles such as the latissimus dorsi and trapezius but also engages related arm and chest muscles, achieving a multi-functional training effect.

[0003] This utility model, with application number CN201721289264.9, relates to the field of sports and fitness equipment, specifically a multifunctional back trainer. It includes a base, a weight frame, a support frame, and a steel wire rope. One end of the base is fixed with a foot pedal, a seat cushion, and a support leg. The weight frame and support frame are fixed to the other end of the base. The weight frame includes a hollow support frame, a weight rod, and weights. A pulley is fixed to the top of the weight rod, and pulleys are fixed to the four corners of the support frame. The support frame includes a sliding rod and a sliding frame. Pulleys are fixed to the top and bottom of the sliding rod, and the sliding frame includes a sliding sleeve, a pulley assembly, and a fixed rod. The steel wire rope passes around all the pulleys. Compared to traditional back trainers, this utility model has more complete functions, trains more body parts, has a simple structure, and is easy to use. Changing the position of the sliding frame can achieve the fitness effects of various fitness equipment, training not only the back but also the chest and arms.

[0004] Based on the above, existing multi-functional back trainers are mostly installed in gyms for shared use by trainees. Due to the high intensity of exercise during training, users tend to sweat profusely, and sweat easily remains or drips onto contact surfaces such as the seat and handles, affecting the experience of subsequent users. While some trainers have replaceable rings on the handles and seat covers to address cleaning issues, the seat cover replacement process is cumbersome; moreover, during training, the large movements of the body can cause the simply covered seat cover to shift, interfering with the completion of normal training movements. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a multi-functional back trainer. Existing multi-functional back trainers are mostly installed in gyms for shared use by trainees. Due to the high intensity of exercise during training, users tend to sweat profusely, and sweat easily remains or drips onto contact areas such as the seat and handles, affecting the experience of subsequent users. While some trainers add replaceable rings to the handles and cover the seat with a cover to solve cleaning issues, the seat cover replacement process is cumbersome; moreover, during training, the large body movements can cause the simply covered seat cover to shift, interfering with the completion of normal training movements.

[0006] The purpose and effectiveness of this multifunctional back trainer are achieved through the following specific technical means: A multifunctional back trainer includes a trainer body, a support frame, a seat cushion, a seat cover, a drive plate, a limiting component, and a suspension component. The support frame is fixedly installed on one side of the trainer body; the seat cushion is fixedly installed on the top of the support frame; the seat cover is fitted onto the outside of the seat cushion; the drive plate is slidably connected to the outside of the support frame; the limiting component is located on the outside of the drive plate; and the suspension component is located at the bottom of the seat cushion.

[0007] Furthermore, the limiting component includes a return spring and a drive ring. One end of the return spring is fixedly connected to the bottom of the seat cushion, and the other end of the return spring is fixedly connected to the upper part of the drive plate. The drive ring is fixedly connected to the bottom of the drive plate and slidably connected to the outside of the support frame.

[0008] Furthermore, the limiting component also includes: a rubber band ring and a limiting pressure strip, wherein the rubber band ring is fixedly installed at the bottom of the seat cover; and the limiting pressure strip is fixedly connected to the upper part of the drive plate.

[0009] Furthermore, the suspension assembly includes: a fixing block, a guide groove, and a rounded chamfer. The fixing block is provided in four sets, and the four sets of fixing blocks are fixedly installed around the bottom of the seat cushion. The guide groove is provided in four sets, and the four sets of guide grooves are respectively opened inside the four sets of fixing blocks. The rounded chamfer is provided in four sets, and the four sets of rounded chamfers are respectively opened on the upper part of the four sets of guide grooves.

[0010] Furthermore, the suspension assembly also includes: sliding rods and connecting rods. The sliding rods are provided in four sets, and the four sets of sliding rods are slidably connected inside the four sets of guide grooves. The connecting rods are provided in four sets, with one end of the four sets of connecting rods hinged to the bottom of the four sets of sliding rods, and the other end of the four sets of connecting rods hinged to the upper part of the drive plate.

[0011] Furthermore, the suspension assembly also includes: hinge shafts and transmission blocks. The hinge shafts are provided in four sets, and the four sets of hinge shafts are rotatably connected to the top of four sets of sliding rods respectively. The transmission blocks are provided in four sets, and the four sets of transmission blocks are fixedly installed on the outside of the four sets of hinge shafts respectively.

[0012] Furthermore, the suspension assembly also includes: hooks and elastic torsion springs. The hooks are provided in four sets, and the four sets of hooks are respectively fixedly installed on the front side of the four sets of transmission blocks. The elastic torsion springs are provided in four pairs. One end of the four pairs of elastic torsion springs is fixedly connected to the outside of the four sets of hinge shafts, and the other end of the four pairs of elastic torsion springs is fixedly connected to one end of the four sets of sliding rods.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Firstly, this invention features a limiting component. By pulling the drive ring, the drive plate moves downward and stretches the return spring, creating a gap between the drive plate and the bottom of the seat cushion, facilitating the installation of the seat cover. After the elastic band at the bottom of the seat cover retracts and engages with the gap, releasing the drive ring allows the return spring to reposition the drive plate, ensuring the limiting strip firmly presses against the retracted part of the seat cover. This securely limits the seat cover's position, effectively preventing displacement during training, simplifying the seat cover replacement process, and improving operational convenience.

[0014] Secondly, this utility model features a suspension assembly. The drive plate moves, and the linkage connecting rod swings, causing the sliding rod to slide along the guide groove. When changing the seat cover, the sliding rod slides outward, causing the transmission block to extend. The elastic torsion spring drives the hook to swing to a vertical position, automatically releasing the seat cover. When fixing the seat cover, the sliding rod slides inward, guiding the transmission block through a chamfered arc into the groove. The groove constrains the transmission block, causing the hook to turn to a horizontal position, forming a hook-holding limit around the seat cover. This, combined with the limiting pressure strip, further enhances the fixing effect, ensuring the seat cover remains stable and does not shift during vigorous movement.

[0015] This utility model has the advantages of simple operation, avoiding displacement, and improving training safety. It effectively solves the problem of cumbersome replacement of traditional seat covers. It also prevents seat cover displacement through a double limiting structure. While ensuring easy cleaning, it improves training safety and comfort, and meets the actual needs of gyms with multiple people sharing the space. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the seat cushion structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the seat cover structure of this utility model.

[0019] Figure 4This is a schematic diagram of the drive ring structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the drive board structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the fixing block structure of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Trainer body; 2. Support frame; 201. Return spring; 3. Seat cushion; 301. Fixing block; 3011. Guide groove; 3012. Rounded chamfer; 302. Sliding rod; 303. Connecting rod; 304. Transmission block; 3041. Hook; 3042. Hinge shaft; 3043. Elastic torsion spring; 4. Seat cover; 401. Rubber band ring; 5. Drive plate; 501. Drive ring; 502. Limiting strip. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a multifunctional back trainer, including a trainer body 1, a support frame 2, a seat cushion 3, a seat cover 4, a drive plate 5, and a limiting component. The support frame 2 is fixedly installed on one side of the trainer body 1; the seat cushion 3 is fixedly installed on the top of the support frame 2; the seat cover 4 is fitted on the outside of the seat cushion 3; the drive plate 5 is slidably connected to the outside of the support frame 2; and the limiting component is located on the outside of the drive plate 5.

[0025] The limiting component includes a reset spring 201 and a drive ring 501. One end of the reset spring 201 is fixedly connected to the bottom of the seat cushion 3, and the other end of the reset spring 201 is fixedly connected to the upper part of the drive plate 5. The drive ring 501 is fixedly connected to the bottom of the drive plate 5 and slidably connected to the outside of the support frame 2.

[0026] The limiting component also includes: a rubber band ring 401 and a limiting pressure strip 502. The rubber band ring 401 is fixedly installed at the bottom of the seat sleeve 4; the limiting pressure strip 502 is fixedly connected to the upper part of the drive plate 5.

[0027] The specific usage and function of this embodiment are as follows: When replacing or installing the seat cover 4, simply pull the drive ring 501. The drive ring 501 will slide vertically downwards along the support frame 2, simultaneously causing the drive plate 5 to move downwards. At this time, the return spring 201 is stretched and stored, creating a certain gap between the drive plate 5 and the bottom of the seat cushion 3. After the seat cover 4 is placed on the outside of the seat cushion 3, the elastic band 401 at the bottom of the seat cover 4 will naturally retract and lock into the gap between the drive plate 5 and the seat cushion 3. After releasing the drive ring 501, the return spring 201 releases its elastic force, causing the drive plate 5 to return to its original position. The drive plate 5 simultaneously pushes the limiting pressure strip 502 to move, so that the limiting pressure strip 502 tightly presses against the retracted part of the seat cover 4. This mechanical structure securely limits the seat cover 4, preventing it from shifting during training.

[0028] Example 2: Based on Example 1, as follows Figures 1 to 6 As shown, it also includes: a suspension assembly, which is located at the bottom of the seat cushion 3.

[0029] The suspension assembly includes: a fixing block 301, a guide groove 3011, and a rounded chamfer 3012. There are four sets of fixing blocks 301, which are fixedly installed around the bottom of the seat cushion 3. There are four sets of guide grooves 3011, which are respectively opened inside the four sets of fixing blocks 301. There are four sets of rounded chamfers 3012, which are respectively opened on the upper part of the four sets of guide grooves 3011.

[0030] The suspension assembly also includes: sliding rods 302 and connecting rods 303. There are four sets of sliding rods 302, which are slidably connected to the inside of four sets of guide grooves 3011. There are four sets of connecting rods 303, with one end of each set of connecting rods 303 hinged to the bottom of the four sets of sliding rods 302, and the other end of each set of connecting rods 303 hinged to the upper part of the drive plate 5.

[0031] The suspension assembly also includes: hinge shafts 3042 and transmission blocks 304. There are four sets of hinge shafts 3042, which are rotatably connected to the top of four sets of sliding rods 302 respectively. There are four sets of transmission blocks 304, which are fixedly installed on the outside of the four sets of hinge shafts 3042 respectively.

[0032] The suspension assembly also includes: hooks 3041 and elastic torsion springs 3043. There are four sets of hooks 3041, and the four sets of hooks 3041 are fixedly installed on the front side of the four sets of transmission blocks 304 respectively. There are four pairs of elastic torsion springs 3043. One end of the four pairs of elastic torsion springs 3043 is fixedly connected to the outside of the four sets of hinge shafts 3042, and the other end of the four pairs of elastic torsion springs 3043 is fixedly connected to one end of the four sets of sliding rods 302.

[0033] The specific usage and function of this embodiment are as follows: When the drive ring 501 is pulled to move the drive plate 5, the drive plate 5 will simultaneously drive the connecting rod 303 to swing. The swing of the connecting rod 303 will then drive the sliding rod 302 to slide along the guide groove 3011 inside the fixed block 301. During the movement of the sliding rod 302, the transmission block 304 will move synchronously. When the drive ring 501 is pulled down to move the drive plate 5 away from the bottom of the seat cushion 3, the sliding rod 302 will slide to the outside of the guide groove 3011, causing the transmission block 304 to extend out of the guide groove 3011. At this time, the elastic torsion spring 3043 will drive the hinge shaft 3042 to rotate. The hinge shaft 3042 will drive the transmission block 304 and the hook 3041 to swing to a vertical state. If the hook 3041 originally hooked the seat cover 4, it will automatically release the hook from the seat cover 4 in the vertical state. When the drive ring 501 resets and drives the drive plate 5 to press the bottom of the seat sleeve 4 through the limiting pressure strip 502, the sliding rod 302 slides into the guide groove 3011, driving the transmission block 304 to move into the guide groove 3011. The rounded chamfer 3012 at the top of the guide groove 3011 can guide the transmission block 304 to enter smoothly. After the vertical transmission block 304 is constrained by the guide groove 3011, it will drive the hook 3041 to turn to a horizontal state and move, so that the hook 3041 forms a hooking limit on the seat sleeve 4 around, which, together with the limiting pressure strip 502, further strengthens the fixing effect of the seat sleeve 4.

[0034] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0035] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0036] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A multifunctional back trainer, characterized in that: The multifunctional back trainer includes a trainer body (1), a support frame (2), a seat cushion (3), a seat cover (4), a drive plate (5), a limiting component, and a suspension component. The support frame (2) is fixedly installed on one side of the trainer body (1); the seat cushion (3) is fixedly installed on the top of the support frame (2); the seat cover (4) is fitted on the outside of the seat cushion (3); the drive plate (5) is slidably connected to the outside of the support frame (2); the limiting component is located on the outside of the drive plate (5); and the suspension component is located at the bottom of the seat cushion (3).

2. The multifunctional back trainer as described in claim 1, characterized in that: The limiting component includes a reset spring (201) and a drive ring (501). One end of the reset spring (201) is fixedly connected to the bottom of the seat cushion (3), and the other end of the reset spring (201) is fixedly connected to the upper part of the drive plate (5). The drive ring (501) is fixedly connected to the bottom of the drive plate (5), and the drive ring (501) is slidably connected to the outside of the support frame (2).

3. The multifunctional back trainer as described in claim 2, characterized in that: The limiting component also includes: a rubber band ring (401) and a limiting strip (502), wherein the rubber band ring (401) is fixedly installed at the bottom of the seat cover (4); and the limiting strip (502) is fixedly connected to the upper part of the drive plate (5).

4. The multifunctional back trainer as described in claim 1, characterized in that: The suspension assembly includes: a fixing block (301), a guide groove (3011), and a rounded chamfer (3012). The fixing block (301) is provided in four sets, and the four sets of fixing blocks (301) are fixedly installed around the bottom of the seat cushion (3). The guide groove (3011) is provided in four sets, and the four sets of guide grooves (3011) are respectively opened inside the four sets of fixing blocks (301). The rounded chamfer (3012) is provided in four sets, and the four sets of rounded chamfers (3012) are respectively opened on the upper part of the four sets of guide grooves (3011).

5. The multifunctional back trainer as described in claim 4, characterized in that: The suspension assembly also includes: sliding rods (302) and connecting rods (303). The sliding rods (302) are provided in four sets, and the four sets of sliding rods (302) are slidably connected inside the four sets of guide grooves (3011). The connecting rods (303) are provided in four sets, one end of the four sets of connecting rods (303) is hinged to the bottom of the four sets of sliding rods (302), and the other end of the four sets of connecting rods (303) is hinged to the upper part of the drive plate (5).

6. The multifunctional back trainer as described in claim 4, characterized in that: The suspension assembly further includes: a hinge shaft (3042) and a transmission block (304). The hinge shaft (3042) is provided in four sets, and the four sets of hinge shafts (3042) are rotatably connected to the top of four sets of sliding rods (302). The transmission block (304) is provided in four sets, and the four sets of transmission blocks (304) are fixedly installed on the outside of the four sets of hinge shafts (3042).

7. The multifunctional back trainer as described in claim 4, characterized in that: The suspension assembly also includes: hooks (3041) and elastic torsion springs (3043). There are four sets of hooks (3041), and the four sets of hooks (3041) are respectively fixedly installed on the front side of the four sets of transmission blocks (304). There are four pairs of elastic torsion springs (3043). One end of the four pairs of elastic torsion springs (3043) is fixedly connected to the outside of the four sets of hinge shafts (3042), and the other end of the four pairs of elastic torsion springs (3043) is fixedly connected to one end of the four sets of sliding rods (302).

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