Stretcher for physical fitness

Abstract

The utility model provides a stretcher for physical fitness, and relates to the technical field of stretchers, the stretcher comprises slots formed in the side faces of two connecting frames and a plug board inserted in the slots in a matched mode, a plurality of hollow rods are fixedly installed on the surfaces of the two sides of the plug board, and the interiors of the hollow rods are connected with moving rods in a sliding mode. A circular clamping block is fixedly installed at the end, away from the hollow rod, of the moving rod, a second spring is fixedly installed at one end of the circular clamping block and one end of the hollow rod, the fixing device comprises a plurality of clamping sleeves fixedly installed on the surfaces of the two pulling plates, and an L-shaped plate and a threaded hole formed in the surface in a matched mode are fixedly installed on the surface of the outer wall of the circular clamping block; by means of the fixing device, the amount-increasing stretching assembly and the pulling plate can be installed and assembled together, so that whether the amount-increasing stretching assembly is added or not can be selected when stretching training is conducted, and therefore the training strength can be adjusted to be suitable for being used by different crowds.

Description

TECHNICAL FIELD

[0001] The utility model relates to stretcher technical field especially relates to a sports fitness is with stretcher. BACKGROUND

[0002] Stretcher is a kind of instrument suitable for public body-building exercise.The benefit of using stretcher to exercise is that biceps brachii is a muscle with two muscle heads, its main function is to bend arm, when bending arm, another muscle-triceps brachii is also used.

[0003] The prior art patent No.CN113856136B, a sports fitness is with stretcher, the patent adopts first air bag, can be stretched in the process of first protection washer and second protection washer, first air bag will be extruded, at this time, the gas in the first air bag will enter the second air bag inside from the air pipe, at this time, two second air bags will push slider, make slider close to each other, then will pull the antiskid belt to the hand of user, make hand be pressed tightly on first handle, make it not easy to appear the problem of falling off when using, increase the safety when using.

[0004] The inventor found in daily work that the above-mentioned sports fitness is with stretcher cannot adjust the intensity of stretching, and because different people have different strength, muscle strength and flexibility are also different, so that fixed strength can cause some people's strength to be too light, leading to invalid training, or too heavy leading to strain. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem of the above-mentioned background art and proposes a sports fitness is with stretcher.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sports fitness is with stretcher, including two connecting frames, the both ends surfaces of two connecting frames are fixedly installed with first spring, the one end of first spring away from connecting frame is fixedly installed with pull plate, the surface of pull plate is fixedly installed with pull rod, the surface of two pull plates is equipped with the fixed device for assembling together with the pull plate and the additional stretching assembly.

[0007] Preferably, the additional stretching assembly includes the insertion slot opened in the side surface of two connecting frames and the insertion plate matched with the insertion inside, the both side surfaces of insertion plate are fixedly installed with a plurality of hollow rods, the inside of a plurality of hollow rods is slidably connected with moving rod, the one end of moving rod away from hollow rod is fixedly installed with circular clamping block, the one end of circular clamping block and hollow rod is fixedly installed with second spring.

[0008] Preferably, the fixing device comprises a plurality of sleeves fixedly installed on the surfaces of the two pull plates, and an L-shaped plate and a threaded hole formed on the surface of the circular block are fixedly installed.

[0009] Preferably, the fixing device further comprises a plurality of extension plates fixedly installed on the surfaces of the two pull plates, and bolts are threadedly connected to the surfaces of the extension plates.

[0010] The above components achieve the effect that the additional stretching assembly can be assembled with the pull plate, so that the additional stretching assembly can be selected to be increased or not during stretching training, thereby adjusting the training intensity to adapt to different people.

[0011] Preferably, the surfaces of the two connecting frames are provided with through grooves and slide rods assembled between the inner walls on the two sides, the surfaces of the slide rods are slidably connected with two slide blocks, the surfaces of the two pull plates are fixedly installed with two slide plates, the slide plates are fixedly connected with the slide blocks at the bottom, and the slide plates are slidably connected with the connecting frames through the pull plates.

[0012] The above components achieve the effects that the pull plate drives the slide plate to move, and the slide block and the slide rod make the slide plate move more stably.

[0013] Preferably, the surface of one of the connecting frames is provided with a limiting device for limiting the insertion plate in the insertion groove, the limiting device comprises a support frame fixedly installed on the surface of one of the connecting frames and a sleeve assembled on the surface, the inside of the sleeve is slidably connected with a jacking rod, and the end of the jacking rod away from the sleeve is fixedly installed with a rack.

[0014] Preferably, the surface of the end of the rack away from the jacking rod is fixedly installed with a positioning rod, and the side of the insertion plate is provided with a positioning hole.

[0015] Preferably, the limiting device further comprises a rotating rod rotatably connected to the surface of one of the connecting frames, the outer wall surface of the rotating rod is respectively assembled with a rotating wheel and a gear, and the gear and the rack are engaged with each other.

[0016] The above components achieve the effects that the positioning rod and the positioning hole limit the insertion plate in the insertion groove, the gear drives the rack to move, and the rotating rod drives the gear to rotate.

[0017] Compared with the prior art, the utility model has the advantages and positive effects that:

[0018] In this invention, by setting a fixing device, the increased stretching component can be installed and assembled with the stretching plate, so that when doing stretching training, one can choose whether to add the increased stretching component, thereby adjusting the training intensity to suit different users. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This utility model Figure 1 Another structural diagram from a different angle;

[0021] Figure 3 This utility model Figure 2 Another structural diagram from a different angle;

[0022] Figure 4 This utility model Figure 2 A schematic diagram of the three-dimensional structure at point A in the middle;

[0023] Figure 5 This utility model Figure 3 A schematic diagram of the three-dimensional structure at point B.

[0024] Legend: 1. Connecting frame; 2. Fixing device; 201. Slot; 202. Insert plate; 203. Hollow rod; 204. Moving rod; 205. Circular locking block; 206. Second spring; 207. Sleeve; 208. L-shaped plate; 209. Threaded hole; 210. Extension plate; 211. Bolt; 3. Limiting device; 31. Support frame; 32. Sleeve; 33. Top rod; 34. Rack; 35. Positioning rod; 36. Positioning hole; 37. Rotating rod; 38. Rotating wheel; 39. Gear; 4. Through groove; 5. Sliding rod; 6. Sliding block; 7. Sliding plate; 8. First spring; 9. Pull plate; 10. Pull rod. Detailed Implementation

[0025] Example 1, as Figures 1-5 As shown, a sports and fitness stretcher includes two connecting frames 1. A first spring 8 is fixedly installed on the surface of both ends of the two connecting frames 1. A pull plate 9 is fixedly installed on the end of the first spring 8 away from the connecting frame 1. A pull rod 10 is fixedly installed on the surface of the pull plate 9. A fixing device 2 for assembling the tensioning component and the pull plate 9 together is provided on the surface of both pull plates 9.

[0026] Reference Figures 2-4As shown, in the embodiment: the amount of stretching assembly includes the slot 201 opened in the side of the two connecting frame 1 and the internal matching plug-in plug-in board 202, the two side surfaces of the plug-in board 202 are fixedly installed with a plurality of hollow rods 203, the interiors of the plurality of hollow rods 203 are slidably connected with a moving rod 204, the end of the moving rod 204 away from the hollow rod 203 is fixedly installed with a circular clamping block 205, the circular clamping block 205 and the one end of the hollow rod 203 are fixedly installed with a second spring 206, the fixing device 2 includes a plurality of clamping sleeves 207 fixedly installed on the surface of the two pull plates 9, the outer wall surface of the circular clamping block 205 is fixedly installed with an L-shaped plate 208 and a threaded hole 209 matchedly opened on the surface, the fixing device 2 further includes a plurality of extension plates 210 fixedly installed on the surface of the two pull plates 9, the surface of the extension plate 210 is threadedly connected with a bolt 211, so that the amount of stretching assembly can be installed and assembled together with the pull plate 9, so that when doing stretching training, whether to increase the amount of stretching assembly can be selected, thereby realizing the adjustment of the training intensity to adapt to the use of different people.

[0027] Referring to Figures 1-2 As shown, in the embodiment: the surface of the two connecting frame 1 is provided with a through slot 4 and a slide rod 5 matchedly assembled between the two side inner walls, the surface of the slide rod 5 is slidably connected with two sliding blocks 6, the surface of the two pull plates 9 is fixedly installed with two sliding plates 7, the bottom of the sliding plate 7 and the sliding block 6 are fixedly connected, the sliding plate 7 is slidably connected with the connecting frame 1 through the pull plate 9, the pull plate 9 is provided to drive the sliding plate 7 to move, the sliding block 6 and the slide rod 5 are provided to make the sliding plate 7 more stable when moving.

[0028] Referring to Figures 3-5 As shown, in the embodiment: the surface of one of the connecting frame 1 is provided with a limiting device 3 for limiting the plug-in board 202 inside the slot 201, the limiting device 3 includes a support frame 31 fixedly installed on the surface of one of the connecting frame 1 and a sleeve 32 matchedly assembled on the surface, the inside of the sleeve 32 is slidably connected with a jacking rod 33, the end of the jacking rod 33 away from the sleeve 32 is fixedly installed with a rack 34, the surface of the end of the rack 34 away from the jacking rod 33 is fixedly installed with a positioning rod 35, the side of the plug-in board 202 is provided with a positioning hole 36, the limiting device 3 further includes a rotating rod 37 rotatably connected on the surface of one of the connecting frame 1, the outer wall surface of the rotating rod 37 is respectively matchedly assembled with a rotating wheel 38 and a gear 39, the gear 39 and the rack 34 are intermeshed.

[0029] Working principle: when the device needs to be used, first let the fitness personnel hold two pull rods 10 with both hands respectively, then do stretching action, pull plate 9 moves to drive pull plate 9 to move, pull plate 9 moves to drive sliding plate 7 to move, sliding plate 7 moves to drive sliding block 6 to move on the surface of slide rod 5, and the movement of pull plate 9 also drives first spring 8 to stretch, when stretching to a certain degree, force can be unloaded, thereby completing the corresponding stretching operation, when the stretching strength needs to be increased, first insert the insertion plate 202 into the inside of the insertion slot 201, then pull the circular clamping block 205, so that the circular clamping block 205 is clamped into the inside of the clamping sleeve 207, when the circular clamping block 205 and the clamping sleeve 207 are clamped, the bolt 211 is screwed into the inside of the threaded hole 209, so that the circular clamping block 205 is limited in the inside of the clamping sleeve 207, then when subsequent stretching training is carried out, the first spring 8 and the second spring 206 can jointly participate in the effect of the stretching training, so as to adjust the training intensity to adapt to the use of different people, when the stability of the increased stretching assembly training needs to be improved, the rotating wheel 38 can be rotated, the rotating wheel 38 rotates to drive the rotating rod 37 to rotate, the rotating rod 37 rotates to drive the gear 39 to rotate, the gear 39 rotates and engages with the rack 34, so that the rack 34 moves, the rack 34 moves to drive the top rod 33 to move out of the inside of the sleeve 32, and the movement of the rack 34 also drives the positioning rod 35 to move, the movement of the positioning rod 35 makes it inserted into the inside of the positioning hole 36, the positioning rod 35 and the positioning hole 36 are inserted, so that the insertion plate 202 is firmly limited in the inside of the insertion slot 201, improving the stability of the increased stretching assembly when in use.

[0030] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the protection scope of the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, detachable connection or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A stretching device for physical fitness, comprising two connecting frames (1), the two ends of each of the two connecting frames (1) are fixedly provided with a first spring (8), one end of the first spring (8) away from the connecting frame (1) is fixedly provided with a pulling plate (9), and the surface of the pulling plate (9) is fixedly provided with a pulling rod (10), characterized in that: The surface of the two pull plates (9) is provided with a fixing device (2) for assembling the overstretching assembly and the pull plate (9).

2. The stretching device for physical fitness according to claim 1, wherein: The overstretching assembly comprises a slot (201) formed on the side surface of the two connecting frames (1) and a plug-in plate (202) matched and plugged inside, the two side surfaces of the plug-in plate (202) are fixedly provided with a plurality of hollow rods (203), the inside of the plurality of hollow rods (203) is slidably connected with a moving rod (204), the end of the moving rod (204) away from the hollow rod (203) is fixedly provided with a circular clamping block (205), the circular clamping block (205) and the one end of the hollow rod (203) are fixedly provided with a second spring (206).

3. The stretching device according to claim 2, wherein: The fixing device (2) comprises a plurality of clamping sleeves (207) fixedly provided on the surface of the two pull plates (9), an L-shaped plate (208) fixedly provided on the outer wall surface of the circular clamping block (205) and a threaded hole (209) matched and formed on the surface.

4. The stretching device according to claim 3, wherein: The fixing device (2) further comprises a plurality of extension plates (210) fixedly provided on the surface of the two pull plates (9), and the surface of the extension plate (210) is threadedly connected with a bolt (211).

5. The stretching device according to claim 4, wherein: The surface of the two connecting frames (1) is formed with a through slot (4) and a slide rod (5) matched and assembled between the two side inner walls, the surface of the slide rod (5) is slidably connected with two slide blocks (6), the surface of the two pull plates (9) is fixedly provided with two sliding plates (7), the bottom of the sliding plate (7) and the slide block (6) are fixedly connected, and the sliding plate (7) is slidably connected with the pull plate (9) and the connecting frame (1).

6. The stretching device according to claim 5, wherein: The surface of one of the connecting frames (1) is provided with a limiting device (3) for limiting the plug-in plate (202) inside the slot (201), the limiting device (3) comprises a supporting frame (31) fixedly provided on the surface of one of the connecting frames (1) and a sleeve (32) matched and assembled on the surface, the inside of the sleeve (32) is slidably connected with a jacking rod (33), and the end of the jacking rod (33) away from the sleeve (32) is fixedly provided with a rack (34).

7. The stretching device according to claim 6, wherein: The end of the rack (34) away from the jacking rod (33) is fixedly provided with a positioning rod (35) on the surface, and the side surface of the plug-in plate (202) is formed with a positioning hole (36).

8. The stretching device according to claim 7, wherein: The limiting device (3) further comprises a rotating rod (37) rotatably connected on the surface of one of the connecting frames (1), the outer wall surface of the rotating rod (37) is respectively matched and assembled with a rotating wheel (38) and a gear (39), and the gear (39) and the rack (34) are intermeshed.

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