Chest expander for physical exercise

Abstract

The utility model belongs to the technical field of chest expanders, and discloses a chest expander for physical exercise, which comprises a bottom plate, the front side and the rear side of the inside of the bottom plate are movably connected with limiting plates, and stools located at the top of the bottom plate are fixedly mounted at the tops of the limiting plates. Through the arrangement of the limiting plate, the clamping groove, the rectangular plate, the moving block and the clamping plate, an operator firstly pulls the pulling plate, then the pulling plate drives the clamping plate to stably move in the opposite direction under the limiting cooperation of the rectangular plate and the moving block, then the clamping plate exerts extrusion force on the spring, and the clamping plate leaves the interior of the clamping groove; when the operator moves the stool leftwards, the stool stably moves leftwards under the limiting action of the limiting plate, when the stool moves to the position required by the operator, the pulling plate is loosened, the spring enables the clamping plate to enter the clamping groove again due to the elastic force recovery action, and the effect of changing the distance between the stool and the pedal is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pullers, in particular to a puller for physical exercise. Background Art

[0002] Physical exercise refers to physical activities that people choose based on their physical needs, using various sports methods to develop their bodies, improve their health, enrich their cultural life and manage their leisure time.

[0003] At present, operators often perform pulling exercises when doing physical exercise. At this time, relevant pullers will be used. There are many types of pullers. One of the most common ones is the seated puller. The operator sits on a stool, puts his feet on the pedals, and then pulls the elastic rope for pulling training. However, since the distance between the stool and the pedals is fixed, it cannot be adjusted according to the operator's needs for distance, and the training posture is relatively single, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a puller for physical exercise, which has the advantage of free adjustment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a puller for physical exercise, comprising a base plate, the front and rear sides of the interior of the base plate are movably connected to a limit plate, a bench located at the top of the base plate is fixedly installed on the top of the limit plate, mounting plates are fixedly installed on the front and rear sides of the top of the base plate, a locking groove is provided on the front of the mounting plate, a rectangular plate is fixedly installed on the left side of the bench, a moving block is movably connected to the front and rear sides of the interior of the rectangular plate, a locking plate is fixedly installed on the inner side of the moving block, the outer surface of the locking plate is movably connected to the inside of the locking groove, a spring is fixedly connected between the inner sides of the locking plate, and a pulling plate is fixedly installed on the left side of the locking plate.

[0006] As a preferred embodiment of the utility model, both the front and rear sides of the right side inside the bottom plate are movably connected to limit blocks, and a pedal located on the top of the bottom plate is fixedly installed on the top of the limit block.

[0007] As a preferred embodiment of the utility model, an elastic rope is fixedly installed on the left side of the pedal, and a handle is fixedly installed on the left side of the elastic rope.

[0008] As a preferred embodiment of the present invention, a fixing plate is fixedly installed on the right end of the top of the bottom plate, and the fixing plate is in a rectangular shape.

[0009] As a preferred embodiment of the present invention, a pneumatic cylinder is fixedly installed on the right side of the fixing plate, and the left end of the pneumatic cylinder passes through the fixing plate and extends to the left side of the fixing plate.

[0010] As a preferred embodiment of the utility model, a movable plate is fixedly installed on the left side of the pneumatic cylinder, and inclined plates are hinged at both the front and rear ends of the movable plate.

[0011] As a preferred embodiment of the present invention, a connecting block is hinged at the left end of the inclined plate, and the left side of the connecting block is fixedly connected to the right side of the pedal.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model sets a limit plate, a locking groove, a rectangular plate, a moving block and a card plate. The operator first pulls the pull plate, and the pull plate will lead the card plate to move toward each other smoothly under the cooperation of the limiting position of the rectangular plate and the moving block. The card plate will exert an extrusion force on the spring, and the card plate will leave the inside of the locking groove. The operator moves the bench to the left, and the bench will move smoothly to the left under the limiting action of the limit plate. When the bench moves to the position required by the operator, the pull plate is released, and the spring will make the card plate re-enter the inside of the locking groove due to the elastic recovery effect, thereby changing the distance between the bench and the pedal.

[0014] 2. The utility model sets a limit block, a pneumatic cylinder, a movable plate, an inclined plate and a connecting block. The operator first starts the pneumatic cylinder. The operation of the pneumatic cylinder will cause the movable plate to move to the left. At this time, the movable plate will cause the inclined plate to rotate and squeeze the connecting block. The connecting block will cause the pedals to move smoothly in opposite directions under the cooperation of the limit block and the bottom plate. At this time, the distance between the pedals will increase, and it can also be changed according to the angle of the operator's feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the left side of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the top of the utility model;

[0018] Figure 4 It is a schematic cross-sectional structure diagram of the limit plate of the utility model;

[0019] Figure 5 It is a schematic cross-sectional structure diagram of the limit block of the utility model.

[0020] In the figure: 1, bottom plate; 2, limit plate; 3, bench; 4, mounting plate; 5, positioning groove; 6, rectangular plate; 7, moving block; 8, clamping plate; 9, spring; 10, pull plate; 11, limit block; 12, pedal; 13, elastic rope; 14, handle; 15, fixed plate; 16, pneumatic cylinder; 17, movable plate; 18, inclined plate; 19, connecting block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 5 As shown, the utility model provides a puller for physical exercise, comprising a base plate 1, the front and rear sides of the interior of the base plate 1 are movably connected with a limit plate 2, a bench 3 located on the top of the base plate 1 is fixedly installed on the top of the limit plate 2, mounting plates 4 are fixedly installed on the front and rear sides of the top of the base plate 1, a locking groove 5 is provided on the front of the mounting plate 4, a rectangular plate 6 is fixedly installed on the left side of the bench 3, a moving block 7 is movably connected to the front and rear sides of the interior of the rectangular plate 6, a clamping plate 8 is fixedly installed on the inner side of the moving block 7, the outer surface of the clamping plate 8 is movably connected to the inside of the clamping groove 5, a spring 9 is fixedly connected between the inner sides of the clamping plate 8, and a pulling plate 10 is fixedly installed on the left side of the clamping plate 8.

[0023] The operator first pulls the pull plate 10, and then the pull plate 10 will carry the card plate 8 to move smoothly towards each other under the cooperation of the rectangular plate 6 and the moving block 7. At this time, the card plate 8 will simultaneously apply an extrusion force to the spring 9, and the card plate 8 will leave the inside of the card slot 5. At this time, the operator can move the bench 3 to the left. When the bench 3 moves to the position required by the operator, the pull plate 10 is released, and the spring 9 will restore the elastic force to allow the card plate 8 to re-enter the inside of the card slot 5. At this time, the bench 3 can be moved according to the needs of the operator.

[0024] refer to Figure 5 The front and rear sides of the right side of the bottom plate 1 are movably connected to the limiting block 11, and the top of the limiting block 11 is fixedly installed with a pedal 12 located on the top of the bottom plate 1.

[0025] As a technical optimization solution of the utility model, due to the design of the limit block 11, the limit block 11 will have a good limiting effect on the pedal 12, and the design of the pedal 12 allows the operator to place his feet on it during exercise.

[0026] refer to Figures 1 to 4 An elastic rope 13 is fixedly installed on the left side of the pedal 12, and a handle 14 is fixedly installed on the left side of the elastic rope 13.

[0027] As a technical optimization solution of the present invention, due to the design of the handle 14, the handle 14 will cooperate with the elastic rope 13 to allow the operator to perform pulling operation.

[0028] refer to Figures 1 to 5 A fixing plate 15 is fixedly installed at the right end of the top of the bottom plate 1, and the shape of the fixing plate 15 is rectangular.

[0029] As a technical optimization solution of the present invention, due to the design of the bottom plate 1 , the bottom plate 1 will have a good fixing effect on the fixing plate 15 .

[0030] refer to Figures 1 to 5 A pneumatic cylinder 16 is fixedly installed on the right side of the fixed plate 15 , and the left end of the pneumatic cylinder 16 penetrates the fixed plate 15 and extends to the left side of the fixed plate 15 .

[0031] As a technical optimization solution of the present invention, due to the design of the fixing plate 15 , the fixing plate 15 will have a good fixing and supporting effect on the pneumatic cylinder 16 .

[0032] refer to Figures 1 to 5 A movable plate 17 is fixedly installed on the left side of the pneumatic cylinder 16, and inclined plates 18 are hinged at both the front and rear ends of the movable plate 17.

[0033] As a technical optimization solution of the utility model, the operator starts the pneumatic cylinder 16, and the operation of the pneumatic cylinder 16 will cause the movable plate 17 to move to the left.

[0034] refer to Figures 1 to 5 The left end of the inclined plate 18 is hinged with a connecting block 19 , and the left side of the connecting block 19 is fixedly connected to the right side of the pedal 12 .

[0035] As a technical optimization solution of the present invention, when the inclined plate 18 rotates, the inclined plate 18 will rotate and squeeze the connecting blocks 19 so that the connecting blocks 19 move toward each other.

[0036] The working principle and use process of this utility model:

[0037] When the operator needs to adjust the distance between the seat 3 and the pedal 12, he first pulls the pull plate 10. At this time, the pull plate 10 will carry the card plate 8 to move smoothly towards each other under the limiting action of the rectangular plate 6 and the moving block 7. At this time, the card plate 8 will simultaneously apply an extrusion force to the spring 9. At this time, the card plate 8 will leave the inside of the card slot 5. At this time, the operator moves the seat 3, and the seat 3 will move smoothly to the left under the limiting cooperation of the limiting plate 2 and the bottom plate 1. When the seat 3 moves to the position required by the operator, the pull plate 10 is released. The spring 9 will allow the card plate 8 to quickly enter the inside of the card slot 5 due to the elastic recovery effect. At this time, the distance between the seat 3 and the pedal 12 will be changed.

[0038] When the operator needs to change the spacing of the pedals 12, first start the pneumatic cylinder 16. The operation of the pneumatic cylinder 16 will cause the movable plate 17 to move to the left. At this time, the movable plate 17 will cause the inclined plate 18 to rotate and squeeze the connecting block 19. The connecting block 19 will carry the pedals 12 to move smoothly in opposite directions under the cooperation of the limiting block 11 and the bottom plate 1. At this time, the spacing of the pedals 12 will change.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A puller for physical exercise, comprising a base plate (1), characterized in that: The front and rear sides of the bottom plate (1) are movably connected to the limit plate (2), the top of the limit plate (2) is fixedly installed with a bench (3) located at the top of the bottom plate (1), the front and rear sides of the top of the bottom plate (1) are fixedly installed with a mounting plate (4), the front of the mounting plate (4) is provided with a positioning groove (5), the left side of the bench (3) is fixedly installed with a rectangular plate (6), the front and rear sides of the rectangular plate (6) are movably connected to a moving block (7), the inner side of the moving block (7) is fixedly installed with a clamping plate (8), the outer surface of the clamping plate (8) is movably connected to the inside of the positioning groove (5), a spring (9) is fixedly connected between the inner sides of the clamping plate (8), and a pull plate (10) is fixedly installed on the left side of the clamping plate (8).

2. A physical exercise puller according to claim 1, characterized in that: The front and rear sides of the right side of the bottom plate (1) are both movably connected to a limiting block (11), and a pedal (12) located on the top of the bottom plate (1) is fixedly installed on the top of the limiting block (11).

3. A physical exercise puller according to claim 2, characterized in that: An elastic rope (13) is fixedly installed on the left side of the pedal (12), and a handle (14) is fixedly installed on the left side of the elastic rope (13).

4. A physical exercise puller according to claim 1, characterized in that: A fixing plate (15) is fixedly mounted on the right end of the top of the bottom plate (1), and the fixing plate (15) is in a rectangular shape.

5. A physical exercise puller according to claim 4, characterized in that: A pneumatic cylinder (16) is fixedly mounted on the right side of the fixing plate (15), and a left end of the pneumatic cylinder (16) penetrates the fixing plate (15) and extends to the left side of the fixing plate (15).

6. A physical exercise puller according to claim 5, characterized in that: A movable plate (17) is fixedly mounted on the left side of the pneumatic cylinder (16), and inclined plates (18) are hingedly connected at both the front and rear ends of the movable plate (17).

7. A physical exercise puller according to claim 6, characterized in that: A connecting block (19) is hingedly connected to the left end of the inclined plate (18), and the left side of the connecting block (19) is fixedly connected to the right side of the pedal (12).

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