Elastic reset hinge and physical training equipment

Abstract

The utility model relates to the technical field of metal products, and discloses an elastic reset hinge and physical training equipment.The elastic reset hinge comprises a first connecting piece, a second connecting piece, a pivot and an elastic piece, the first connecting piece and the second connecting piece are hinged through the pivot, and a first limiting part and a second limiting part are arranged at the adjacent ends of the first connecting piece and the second connecting piece correspondingly; the first limiting part and the second limiting part enable the included angle between the first connecting piece and the second connecting piece to be 90 degrees when the first connecting piece and the second connecting piece are in an open state, the elastic piece is connected with the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece have the tendency to be reset to the open state through the elastic force of the elastic piece. According to the elastic reset hinge and the physical training equipment provided by the invention, the opening included angle of the elastic reset hinge is 90 degrees, so that the elastic reset hinge can be directly mounted and applied to a product needing to open the included angle of 90 degrees, and the product is simpler in structure, easier to process and higher in reliability.

Description

Technical Field

[0001] The present application relates to the technical field of metal products, and particularly to an elastic reset hinge and sports training equipment. Background Art

[0002] At present, the elastic reset hinges on the market are mainly used for products such as doors and windows, and their opening angles are all 180 degrees. In some occasions where the opening angle needs to be 90 degrees, such as sports training equipment, the existing elastic reset hinges cannot be directly used, and it is difficult to accurately simulate the human body and complete corresponding limb movements. It is necessary to install corresponding limiting structures on the products to be applied, resulting in complex product structures, difficult processing, and low reliability. Summary of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the present utility model is to provide an elastic reset hinge with an opening angle of 90 degrees and sports training equipment.

[0004] The technical solution provided by the present utility model is as follows:

[0005] An elastic reset hinge includes a first connecting member, a second connecting member, a pivot, and an elastic member. The first connecting member and the second connecting member are hinged by the pivot, and first limiting portions and second limiting portions are respectively provided at adjacent ends. The first limiting portion and the second limiting portion make the included angle between the first connecting member and the second connecting member 90 degrees in the open state. The elastic member connects the first connecting member and the second connecting member, and the elastic force of the elastic member makes the first connecting member and the second connecting member have a tendency to reset to the open state.

[0006] Preferably, the first connecting member includes a first plate surface and first arm portions extending in the same direction from both sides of the first plate surface, and through holes are provided in each first arm portion; the second connecting member includes a second plate surface and second arm portions extending in the same direction from both sides of the second plate surface, and through holes are provided in each second arm portion; the pivot passes through the through holes of the first arm portions and the through holes of the second arm portions to hinge the first connecting member and the second connecting member.

[0007] Preferably, both the first connecting member and the second connecting member are provided with a plurality of fixing holes.

[0008] Preferably, the pivot includes a shaft portion, a head portion and a tail portion respectively located at both ends of the shaft portion. The head portion and the tail portion are respectively located on both sides of the first connecting member and the second connecting member after assembly. The size of the head portion is larger than that of the shaft portion to prevent the pivot from falling off from this end, and the tail portion is provided with a fixing structure to prevent the pivot from falling off from this end.

[0009] Preferably, the fixing structure includes a pin hole provided in the tail portion of the pivot and a split pin inserted into the pin hole.

[0010] Preferably, the elastic member is a spring, which is sleeved on the pivot shaft, and abutting portions for abutting against the inner surfaces of the first connecting member and the second connecting member are respectively provided at both ends of the spring.

[0011] Preferably, the elastic reset hinge is used for fixing the striking plate in the sports training equipment.

[0012] A sports training equipment includes a bracket and a first striking plate. The first striking plate is hinged to the bracket through the elastic reset hinge as described above. The first connecting member of the elastic reset hinge is fixed on the bracket, and the second connecting member is fixed on the first striking plate. When the first striking plate is struck, it is stressed, driving the second connecting member to rotate backward around the pivot shaft. After the force is released, the second connecting member rotates forward around the pivot shaft to reset.

[0013] Preferably, the sports training equipment further includes a second striking plate and a third striking plate. The second striking plate is located at the upper part of the bracket and is used to simulate the head or shoulder of the opponent. There are two first striking plates, which are respectively located on both sides of the middle part of the bracket and are used to simulate the chest and abdomen of the opponent. The third striking plate is located at the lower part of the bracket and is used to simulate the legs of the opponent. The second striking plate and the third striking plate are both directly installed on the bracket through return springs.

[0014] Preferably, the bracket includes a base and a telescopic cylinder. The base is used to be placed on the ground. The telescopic cylinder includes an inner cylinder and an outer cylinder. The bottom of the outer cylinder is fixedly arranged on the base. A plurality of first positioning holes are arranged on the outer wall of the outer cylinder from top to bottom. The inner cylinder is sleeved inside the outer cylinder and extends out from the top of the outer cylinder. A plurality of second positioning holes matching the first positioning holes are arranged on the outer wall of the inner cylinder from top to bottom. A positioning pin passes through the first positioning hole of the outer cylinder and the second positioning hole of the inner cylinder, so as to realize the adjustment of the height of the telescopic cylinder; the first striking plate, the second striking plate and the third striking plate are all installed on the inner cylinder.

[0015] Compared with the prior art, for the elastic reset hinge and the sports training equipment of the present invention, by respectively providing a first limiting portion and a second limiting portion on the first connecting member and the second connecting member, which make the included angle between the first connecting member and the second connecting member be 90 degrees in the open state, the opening included angle of the elastic reset hinge is 90 degrees, so that it can be directly installed and applied to products that require an opening included angle of 90 degrees, making the product structure simpler, the processing easier and the reliability higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 This is a schematic structural view of the elastic reset hinge according to an embodiment of the present utility model;

[0018] Figure 2 is Figure 1 a schematic structural view of the elastic reset hinge shown from another angle;

[0019] Figure 3 is Figure 1 a schematic structural view of the elastic reset hinge shown from yet another angle;

[0020] Figure 4 is Figure 1 a schematic structural view of the sports training equipment to which the elastic reset hinge is applied. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meanings of "a plurality of" and "several" are two or more, unless otherwise specifically and clearly defined.

[0025] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this application. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0026] As Figures 1 to 3 shown, an embodiment of the present utility model provides an elastic reset hinge 1, which can be used on various mechanical products such as sports training equipment (described in detail later), doors and windows, and machinery and equipment. The elastic reset hinge 1 includes a first connecting member 11, a second connecting member 12, a pivot 13, and an elastic member 14.

[0027] The first connecting member 11 and the second connecting member 12 are hinged by the pivot 13, and the adjacent ends are respectively provided with a first limiting portion 111 and a second limiting portion 121. The first limiting portion 111 and the second limiting portion 121 make the included angle between the first connecting member 11 and the second connecting member 12 be 90 degrees in the open state. The elastic member 14 connects the first connecting member 11 and the second connecting member 12, and the elastic force of the elastic member 14 makes the first connecting member 11 and the second connecting member 12 have a tendency to reset to the open state.

[0028] In this embodiment, the first connecting member 11 includes a first plate surface 112 and first arm portions 113 extending in the same direction from both sides of the first plate surface 112. Each first arm portion 113 is provided with a through hole. The second connecting member 12 includes a second plate surface 122 and second arm portions 123 extending in the same direction from both sides of the second plate surface 122. Each second arm portion 123 is provided with a through hole. The pivot 13 passes through the through holes of the first arm portions 113 and the through holes of the second arm portions 123 to hinge the first connecting member 11 and the second connecting member 12.

[0029] Both the first connecting member 11 and the second connecting member 12 are further provided with a plurality of first fixing holes 114 and second fixing holes 124 to respectively fix the first connecting member 11 and the second connecting member 12 on two parts of the product that need to rotate by means of bolts or the like during application.

[0030] In this embodiment, the pivot 13 includes a shaft portion 131, and a head portion 132 and a tail portion 133 respectively located at both ends of the shaft portion 131. After assembly, the head portion 132 and the tail portion 133 are respectively located on both sides of the first connecting member 11 and the second connecting member 12. The size of the head portion 132 is larger than that of the shaft portion 131 to prevent the pivot 13 from falling off from this end, and the tail portion 133 is provided with a fixing structure to prevent the pivot 13 from falling off from this end. In this embodiment, the fixing structure includes a pin hole 134 provided at the tail of the pivot 13 and a split pin (not shown) inserted into the pin hole. Of course, in other embodiments, the fixing structure can also adopt other structures such as a snap ring and a slot, a nut, etc.

[0031] In this embodiment, the elastic member 14 is a spring, which is sleeved on the pivot 13, and abutting portions 141 for abutting against the inner surfaces of the first connecting member 11 and the second connecting member 12 are respectively provided at both ends of the spring.

[0032] Figure 4 The figure shows a sports training apparatus to which the elastic reset hinge according to the embodiment of the present utility model is applied. The elastic reset hinge is used to fix a striking plate in a sports training apparatus.

[0033] This sports training apparatus is a stick target, which is a martial arts training apparatus mainly used for training stick techniques. The stick target can simulate the attacking actions of an enemy, allowing the trainer to practice stick techniques and the attacking, defending, and defensive counterattack of other long and short weapons, so as to improve the actual combat ability. The seven-step continuous needle stick target is a unique technical system in the Wu family boxing. The Wu family boxing is a national intangible cultural heritage protection project announced in the fifth batch. Among them, the weapon seven-step continuous needle spear stick is a spear technique in the cold weapon era.

[0034] Of course, in other embodiments, the elastic reset hinge can also be used on other sports training apparatuses to fix the striking plate.

[0035] In this embodiment, the stick target includes a bracket and a plurality of components installed on the bracket. The bracket includes a base 21 and a telescopic cylinder. The base 21 is placed on the ground, and the bottom of the telescopic cylinder is fixed to the base 21 through a mounting plate 23.

[0036] The telescopic cylinder includes an inner cylinder 221 and an outer cylinder 222. The bottom of the outer cylinder 222 is fixedly arranged on the mounting plate 23. A number of first positioning holes 223 are arranged on the outer wall of the outer cylinder 222 from top to bottom. The inner cylinder 221 is sleeved inside the outer cylinder 222 and extends out from the top of the outer cylinder 222. A number of second positioning holes (not shown) that cooperate with the first positioning holes 223 are arranged on the outer wall of the inner cylinder 221 from top to bottom. A positioning pin passes through the first positioning hole 223 of the outer cylinder 222 and the second positioning hole of the inner cylinder 221, so as to realize the adjustment of the height of the telescopic cylinder, thereby simulating enemies of different heights and achieving better simulation training effects. In addition, the height of the stick target can also be adjusted to adapt to different training populations. For example, if the trainer is a child, the height of the stick pile can be lowered. It should be noted that the height adjustment of the present utility model is not limited to the structure of the telescopic cylinder, and other methods such as installing heightening pads can also be adopted.

[0037] A mounting seat 24 is fixedly arranged at the top of the inner cylinder 221. The second striking plate 3 is hinged to the front of the top of the mounting seat 24 through a first pin shaft, and a first return spring for resetting the second striking plate 3 is sleeved on the first pin shaft. The second striking plate 3 is used to simulate the head of an enemy holding a stick; two first striking rods 4 are symmetrically arranged on the left and right sides of the mounting seat 24. The first striking rods 4 are horizontally arranged and one end of each is hinged to the mounting seat 24. A tension spring for resetting the first striking rod 4 is arranged between the first striking rod 4 and the mounting seat 24. The two first striking rods 4 are used to simulate the head or shoulders of an enemy holding a stick.

[0038] A rotating shaft 27 is arranged in the middle of the mounting seat 24. The rotating shaft 27 is installed in the mounting hole in the middle of the telescopic cylinder through a bearing. Two stick bodies 5 are fixedly arranged at the front end of the rotating shaft 27. The two stick bodies 5 are arranged one above the other and inclined at a set angle, and the two stick bodies 5 are used to simulate different attack directions (upper three sections or lower three sections) of an enemy holding a stick.

[0039] Two first striking plates 6 are symmetrically arranged on the left and right sides at the top of the outer cylinder 222 (i.e., the middle of the bracket). The first striking plates 6 are hinged to the top of the outer cylinder 222 through elastic reset hinges. The first striking plates 6 are used to simulate the chest and abdomen of an enemy holding a stick. Specifically, the first connecting member 11 of the elastic reset hinge is fixed on the outer cylinder 222 of the bracket, and the second connecting member 12 is fixed on the first striking plate 6, so that when the first striking plate 6 is struck, it is stressed, driving the second connecting member 12 to rotate backward around the pivot shaft 13. After the force is released, the second connecting member 12 rotates forward around the pivot shaft 13 to reset.

[0040] A number of suction cups 211 are arranged at the bottom of the base 21. The base 21 is placed on the ground and keeps the whole stick target stable under the action of its own gravity. The suction cups 211 can suck the ground, strengthening the grip of the whole stick pile and making the whole stick pile not easy to fall.

[0041] On one side of the middle part of the outer cylinder 222 (i.e., the lower part of the bracket), there is a third striking plate 7, which is used to simulate the leg of an enemy holding a stick. The third striking plate 7 is hinged to one side of the middle part of the outer cylinder 222 through a third pin shaft, and a second return spring for resetting the third striking plate 7 is sleeved on the third pin shaft.

[0042] On the front of the middle part of the outer cylinder 222, a second striking rod 8 is hinged through a fourth pin shaft. A third return spring for resetting the second striking rod 8 is sleeved on the fourth pin shaft, and the second striking rod 8 is used to simulate the leg of an enemy holding a stick.

[0043] The sizes of the springs in the first return spring, the second return spring, the third return spring, and the elastic return hinge can be replaced. By replacing the first return spring, the spring in the elastic return hinge, the second return spring, and the third return spring with different sizes, the striking forces of the corresponding second striking plate 3, the first striking plate 6, the third striking plate 7, and the second striking rod 8 can be adjusted. That is, the larger the spring, the greater the elastic force, and the greater the force required to strike the corresponding striking plate. In this way, it can be suitable for different trainers.

[0044] The second striking plate 3, the first striking plate 6, and the third striking plate 7 are circular, and can also be square or other shapes; the sizes of the second striking plate 3, the first striking plate 6, and the third striking plate 7 can be replaced. By replacing the second striking plate 3, the first striking plate 6, and the third striking plate 7 with different sizes, the adjustment of the striking accuracy of the trainer can be realized. That is, the smaller the striking plate, the higher the requirement for the striking accuracy of the trainer. In this embodiment, the second striking plate 3 is fixed to the inner cylinder 221 through a mounting seat 24, so that the height can be adjusted; the first striking plate 6 and the third striking plate 7 are fixed to the outer cylinder 222, and the height cannot be adjusted. Of course, in other embodiments, the second striking plate 3, the first striking plate 6, and the third striking plate 7 can also be fixed to the inner cylinder to achieve adjustable height.

[0045] Before training, adjust the height of the entire stick target according to the height of the enemy holding a stick or the height of the trainer. After the height is adjusted, start training; the trainer stands in front of the stick pile and holds a stick for simulated confrontation. First, the trainer strikes the stick body 5 from the left or right, and after deflecting the stick body 5, holds the stick to strike the second striking plate 3, the first striking rod 4, or the first striking plate 6, and the striking order can be set according to needs.

[0046] Of course, in other embodiments, the second striking plate 3, the first striking rod 4, the stick body 5, the first striking plate 6, the third striking plate 7, and the second striking rod 8 may not be all provided, but selectively provided. For example, only the second striking plate 3, the first striking plate 6, and the third striking plate 7 can be provided.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An elastic reset hinge, characterized in that, It includes a first connecting member, a second connecting member, a pivot, and an elastic member. The first connecting member and the second connecting member are hinged by the pivot, and a first limiting portion and a second limiting portion are respectively provided at adjacent ends. The first limiting portion and the second limiting portion make the included angle between the first connecting member and the second connecting member 90 degrees in the open state. The elastic member connects the first connecting member and the second connecting member, and the elastic force of the elastic member makes the first connecting member and the second connecting member have a tendency to reset to the open state.

2. The elastic reset hinge according to claim 1, wherein, The first connecting member includes a first plate surface and first arm portions extending in the same direction from both sides of the first plate surface. Each first arm portion is provided with a through hole; the second connecting member includes a second plate surface and second arm portions extending in the same direction from both sides of the second plate surface. Each second arm portion is provided with a through hole; the pivot passes through the through holes of the first arm portion and the second arm portion to hinge the first connecting member and the second connecting member.

3. The elastic reset hinge according to claim 2, wherein, Both the first connecting member and the second connecting member are provided with a plurality of fixing holes.

4. The elastic reset hinge according to claim 1, characterized in that, The pivot includes a shaft portion, a head and a tail respectively located at both ends of the shaft portion. After assembly, the head and the tail are respectively located on both sides of the first connecting member and the second connecting member. The size of the head is larger than that of the shaft portion to prevent the pivot from falling off from this end, and the tail is provided with a fixing structure to prevent the pivot from falling off from this end.

5. The elastic reset hinge according to claim 4, characterized in that, The fixing structure includes a pin hole provided at the tail of the pivot and a split pin inserted into the pin hole.

6. The elastic reset hinge according to claim 1, characterized in that The elastic member is a spring, which is sleeved on the pivot. Both ends of the spring are respectively provided with abutting portions for abutting against the inner surfaces of the first connecting member and the second connecting member.

7. The elastic reset hinge according to any one of claims 1 to 6, characterized in that The elastic reset hinge is used to fix the striking plate in sports training equipment.

8. A sports training equipment, characterized in that, It includes a bracket and a first striking plate. The first striking plate is hinged to the bracket by the elastic reset hinge as described in any one of claims 1 to 7. The first connecting member of the elastic reset hinge is fixed on the bracket, and the second connecting member is fixed on the first striking plate. When the first striking plate is struck, it is stressed, driving the second connecting member to rotate backward around the pivot. After the force is released, the second connecting member rotates forward around the pivot to reset.

9. The sports training equipment according to claim 8, characterized in that, The sports training equipment further includes a second striking plate and a third striking plate. The second striking plate is located at the upper part of the bracket and is used to simulate the head or shoulder of the opponent. There are two first striking plates, which are respectively located on both sides of the middle part of the bracket and are used to simulate the chest and abdomen of the opponent. The third striking plate is located at the lower part of the bracket and is used to simulate the legs of the opponent. The second striking plate and the third striking plate are both directly installed on the bracket through return springs.

10. The sports training equipment according to claim 9, wherein, The bracket includes a base and a telescopic cylinder. The base is used to be placed on the ground. The telescopic cylinder includes an inner cylinder and an outer cylinder. The bottom of the outer cylinder is fixedly arranged on the base. A plurality of first positioning holes are arranged on the outer wall of the outer cylinder from top to bottom. The inner cylinder is sleeved inside the outer cylinder and extends out from the top of the outer cylinder. A plurality of second positioning holes matched with the first positioning holes are arranged on the outer wall of the inner cylinder from top to bottom. A positioning pin passes through the first positioning hole of the outer cylinder and the second positioning hole of the inner cylinder, so as to realize the adjustment of the height of the telescopic cylinder; at least part of the first striking plate, the second striking plate, and the third striking plate is fixed on the inner cylinder.

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