Weight and height adjustable martial art sandbag

Abstract

The utility model discloses a martial art sandbag with adjustable weight and height, and relates to the technical field of martial art training, the martial art sandbag comprises a support underframe and a sandbag body, the top of the support underframe is fixedly provided with a support rod, one side of the support rod is fixedly provided with an inclined fixed rod, and one side of the bottom of the fixed rod is fixedly provided with a blanking pipe; a supporting rod is installed on the supporting bottom frame, a storage cavity is formed in the supporting rod and filled with a counter weight, a feeding hopper is installed on one side of the storage cavity, an auger is rotationally connected to the inner wall of the storage cavity, and a rotating motor used for driving the auger to rotate is fixedly installed at the bottom of the supporting bottom frame. According to the martial art sandbag, the use requirements of trainees with different heights are met, the supporting rods can have the function of storing the counter weights, the counter weights do not need to be placed at other positions and can be conveniently taken and used at any time, the weight of the whole martial art sandbag has the good adjusting performance, and the requirements for different training intensities are met.

Description

Technical Field

[0001] This utility model relates to the field of martial arts training technology, and in particular to a martial arts sandbag with adjustable weight and height. Background Technology

[0002] Martial arts sandbags are training equipment used in combat sports, primarily for striking power training. They are typically made of materials such as microfiber leather, PU leather, canvas, or Oxford cloth, with an internal cushioning layer of EVA or foam between the sandbag and the filling. Finished sandbags are usually filled with rags. The most common traditional sandbag shape is cylindrical, but other shapes include banana, spherical, teardrop, pear, large-headed, and bowling ball-shaped. Current martial arts sandbags are generally fixed at a certain height, making it difficult to effectively adjust the height for use by trainees of different heights.

[0003] To address the issue of height inability to adjust the height of martial arts sandbags, lifting-type sandbags have been adopted in the market, and these sandbags have a certain market share.

[0004] A search revealed that patent CN109692456B discloses a martial arts leg side kick strength training device. This device allows for adjustment of the sandbag height, improving adaptability; it also facilitates the replacement of sandbags of different weights and models, increasing the selectivity of training intensity and reducing usage limitations. The device includes a support frame and sandbags, with the top of the sandbags connected to the middle of the support frame via a metal connecting chain. It includes two sets of left adjusting tubes, two sets of right adjusting tubes, a left support plate, a right support plate, two sets of fixed pulleys, a pull rope, a placement frame, and a roller. It also includes a connecting plate, a hook, a sleeve, and an adjusting bolt. The top center of the connecting plate connects to the bottom end of the metal connecting chain, and the top left side of the hook connects to the bottom left side of the connecting plate. The top right side of the connecting plate has a through-hole threaded hole, and the bottom end of the adjusting bolt is screwed through the through-hole and extends to the outside of the bottom end of the connecting plate, concentrically connecting with the top end of the sleeve.

[0005] Based on the above patent findings, the existing technology has certain shortcomings: although the existing martial arts sandbag has solved the problem of height adjustment, its weight is generally kept constant and does not have good adjustability. When trainees increase the intensity of training, it cannot meet their needs. Therefore, it is urgent to design a martial arts sandbag with adjustable weight and height to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing an adjustable weight and height martial arts sandbag. Its advantages lie in enabling the entire support rod of the martial arts sandbag to store counterweights, eliminating the need to place the counterweights elsewhere for easy access. This also allows for adjustments to the weight of the entire sandbag, providing better weight adjustment capabilities to meet different training intensity requirements.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An adjustable weight and height martial arts sandbag includes a support base and a sandbag body. A support rod is fixed to the top of the support base, and an inclined fixing rod is fixed to one side of the support rod. A discharge pipe is fixed to the bottom side of the fixing rod. A storage cavity is opened inside the support rod, and the storage cavity is filled with counterweights. A feed hopper is installed on one side of the storage cavity. An auger is rotatably connected to the inner wall of the storage cavity. A rotary motor for driving the auger is fixedly installed at the bottom of the support base. A discharge hole communicating with the storage cavity and the discharge pipe is opened inside the fixing rod. A filling hopper is provided on the top of the sandbag body, and the filling hopper is located directly below the discharge pipe.

[0009] The above technical solution allows the counterweight to enter the central cylinder, thereby changing the overall weight of the martial arts sandbag.

[0010] The present invention is further configured such that the sandbag body includes an inner liner, and a central cylinder is fixed to the inner wall of the inner liner. A filling layer, a buffer layer and a protective layer are sequentially provided on the outer wall of the inner liner. The injection hopper is fixedly installed on the top of the inner liner and is connected to the central cylinder.

[0011] The above technical solutions facilitate the addition of counterweights into the central cylinder, ensuring balanced weight distribution.

[0012] The present invention is further configured such that a screw hole is provided at the middle position between the bottom of the inner wall of the central cylinder and the bottom of the inner liner, and a sealing cap is screwed onto the inner wall of the screw hole, and a sealing plug that fits against the inner wall of the central cylinder is fixed on the top of the sealing cap.

[0013] The above technical solution reduces the weight of the martial arts sandbag by opening the sealing cover to facilitate the release of the counterweight inside the central cylinder.

[0014] The present invention is further configured such that the top of the support rod has an installation cavity, and the installation cavity is provided with a lifting assembly, the lifting assembly is provided with a lifting rod, one end of the fixed rod has a guide hole, and one end of the lifting rod is fixed with a lifting column passing through the guide hole. The bottom of the lifting column is fixedly installed with a hanging chain, and the bottom of the hanging chain is fixedly connected to the top of the inner liner.

[0015] The above technical solutions facilitate the hanging of the sandbags.

[0016] The present invention is further configured such that the lifting assembly includes a threaded rod rotatably connected in the mounting cavity, and a forward and reverse motor for driving the threaded rod to rotate is fixedly installed at the top of the support rod, and a threaded hole adapted to the outer wall of the threaded rod is provided on the lifting rod.

[0017] The above technical solutions enable the adjustment of the height of the lifting rod, lifting column, hanging chain, and sandbag body, thus giving the entire martial arts sandbag height adjustment function.

[0018] The present invention is further configured such that a first guide groove is provided at both ends of the inner wall on both sides of the mounting cavity, and two second guide grooves are provided on the lifting rod. The lifting rod passes through the first guide groove and the mounting cavity between the second guide groove and the two adjacent first guide grooves.

[0019] The above technical solutions ensure the stability of the lifting mast.

[0020] The present invention is further configured such that a limiting groove is provided on one side of the lifting rod and a limiting block inserted into the limiting groove is fixed on the outer wall of one side of the support rod.

[0021] The above technical solutions further ensure the stability of the lifting mast during operation.

[0022] The present invention is further configured such that diagonal braces are fixed to the outer wall of the support rod on both sides of the top of the support base.

[0023] The above technical solutions reinforce the support rod and the support base, ensuring the stability of the support rod and even the entire martial arts sandbag.

[0024] The beneficial effects of this utility model are as follows:

[0025] This utility model, through the setting of the lifting component, can adjust the height of the lifting rod, lifting column, hanging chain and sandbag body, so that the entire martial arts sandbag has a height adjustment function to meet the needs of trainees of different heights. Under the guidance and limiting action of the first guide groove, the second guide groove, the limiting groove and the limiting block, the lifting column and the guide hole, the stability of the martial arts sandbag during height adjustment is guaranteed.

[0026] This invention, through the design of a storage chamber and a feeding hopper, enables the entire support rod for martial arts sandbags to store counterweights, eliminating the need to place the counterweights elsewhere, making them convenient to access at any time, and ensuring the stability of the entire support rod.

[0027] This invention utilizes a rotary motor to drive an auger to rotate, causing the counterweight in the storage chamber to leak into the injection hopper along the discharge hole and discharge pipe. This allows the counterweight to enter the central cylinder, changing the weight of the entire sandbag and giving the martial arts sandbag good weight adjustment performance to meet the needs of different training intensities. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a martial arts sandbag with adjustable weight and height proposed in this utility model.

[0029] Figure 2 This is a schematic diagram of the rotating motor and guide hole structure of a martial arts sandbag with adjustable weight and height proposed in this utility model.

[0030] Figure 3 A three-dimensional sectional view of a martial arts sandbag with adjustable weight and height proposed in this utility model;

[0031] Figure 4 This is a schematic diagram of the storage cavity and mounting cavity structure of an adjustable weight and height martial arts sandbag proposed in this utility model.

[0032] Figure 5 This is a schematic diagram of the limiting groove and the second guide groove structure of a martial arts sandbag with adjustable weight and height proposed in this utility model.

[0033] Figure 6 This is a cross-sectional view of the body of a martial arts sandbag with adjustable weight and height, as proposed in this utility model.

[0034] In the diagram: 1. Support base frame; 2. Diagonal brace; 3. Support rod; 4. Feed hopper; 5. Lifting rod; 6. Forward and reverse motor; 7. Fixed rod; 8. Lifting column; 9. Discharge pipe; 10. Lifting chain; 11. Sandbag body; 1101. Protective layer; 1102. Buffer layer; 1103. Filling layer; 1104. Inner liner; 1105. Sealing cap; 1106. Sealing plug; 1107. Central cylinder; 12. Injection hopper; 13. Rotary motor; 14. Limiting block; 15. First guide groove; 16. Guide hole; 17. Storage cavity; 18. Screwdriver; 19. Threaded rod; 20. Discharge hole; 21. Mounting cavity; 22. Limiting groove; 23. Second guide groove. Detailed Implementation

[0035] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Reference Figures 1-6An adjustable weight and height martial arts sandbag includes a support base 1 and a sandbag body 11. A support rod 3 is fixed to the top of the support base 1, and an inclined fixing rod 7 is fixed to one side of the support rod 3. A discharge pipe 9 is fixed to the bottom side of the fixing rod 7. A storage cavity 17 is formed inside the support rod 3, and the storage cavity 17 is filled with a counterweight, preferably sand. A feed hopper 4 is installed on one side of the storage cavity 17. An auger 18 is rotatably connected to the inner wall of the storage cavity 17, and a rotary motor 13 for driving the auger 18 is fixedly installed at the bottom of the support base 1. A discharge hole 20 communicating with the storage cavity 17 and the discharge pipe 9 is formed inside the fixing rod 7. A filling hopper 12 is provided at the top of the sandbag body 11, and the filling hopper 12 is located directly below the discharge pipe 9. The sandbag body 11 includes an inner liner 1104, and a central cylinder 1107 is fixed to the inner wall of the inner liner 1104. The outer wall of 1104 is sequentially provided with a filling layer 1103, a buffer layer 1102, and a protective layer 1101. The filling hopper 12 is fixedly installed on the top of the inner liner 1104 and is connected to the central cylinder 1107. A screw hole is opened at the bottom of the inner wall of the central cylinder 1107 and the middle position of the bottom of the inner liner 1104. A sealing cap 1105 is screwed onto the inner wall of the screw hole. A sealing plug 1106 is fixed on the top of the sealing cap 1105 and fits against the inner wall of the central cylinder 1107. The rotating motor 13 can drive the auger 18 to rotate, driving the counterweight in the storage chamber 17 to leak into the filling hopper 12 along the discharge hole 20 and the discharge pipe 9, thereby allowing the counterweight to enter the central cylinder 1107 and increase the weight of the sandbag body 11. Alternatively, the weight can be reduced by opening the sealing cap 1105 and releasing the counterweight in the central cylinder 1107, thereby changing the weight of the entire martial arts sandbag.

[0040] To enable height adjustment of the entire martial arts sandbag, a mounting cavity 21 is provided at the top of the support rod 3, and a lifting assembly is installed on the mounting cavity 21. A lifting rod 5 is installed on the lifting assembly. A guide hole 16 is provided at one end of the fixed rod 7, and a lifting column 8 passing through the guide hole 16 is fixed to one end of the lifting rod 5. A hanging chain 10 is fixedly installed at the bottom of the lifting column 8, and the bottom of the hanging chain 10 is fixedly connected to the top of the inner liner 1104. The lifting assembly includes a threaded rod 19 rotatably connected within the mounting cavity 21, and a forward / reverse motor 6 for driving the threaded rod 19 to rotate is fixedly installed at the top of the support rod 3. A threaded hole adapted to the outer wall of the threaded rod 19 is provided on the lifting rod 5. First guide grooves 15 are provided at both ends of the inner walls on both sides of the mounting cavity 21, and two second guide grooves 23 are provided on the lifting rod 5. The lifting rod 5 passes through the first guide groove 15 and the mounting cavity 21 between the second guide groove 23 and the two adjacent first guide grooves 15. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5Using the aforementioned lifting assembly, the threaded rod 19 can be rotated by the forward and reverse motor 6 inside the lifting assembly, thereby adjusting the height of the lifting rod 5, lifting column 8, hanging chain 10 and sandbag body 11, so that the entire martial arts sandbag has a height adjustment function.

[0041] To ensure the stability of the lifting rod 5, a limit groove 22 is provided on one side of the lifting rod 5, and a limit block 14 inserted into the limit groove 22 is fixed on the outer wall of one side of the support rod 3. (Refer to...) Figure 2 and Figure 5 The aforementioned limiting block 14 and limiting groove 22 are used to ensure the stability of the lifting rod 5 during movement.

[0042] To further ensure the stability of the support rod 3, diagonal braces 2 are fixed to the outer wall of the support rod 3 on both sides of the top of the support base frame 1, as shown in the figure. Figure 1 and Figure 2 The aforementioned diagonal brace 2 is used to reinforce the support rod 3 and the support base frame 1, ensuring the stability of the support rod 3 and even the entire martial arts sandbag.

[0043] Working principle: During use, the user drives the threaded rod 19 to rotate via the forward and reverse motor 6 in the lifting assembly, adjusting the height of the lifting rod 5, lifting column 8, hanging chain 10, and sandbag body 11, so that the entire martial arts sandbag has a height adjustment function. When it is necessary to adjust the weight of the sandbag body 11, the user can add the counterweight to the storage chamber 17 through the feeding hopper 4, so that the entire support rod 3 used for martial arts sandbag can store the counterweight. Then, by adjusting the height of the sandbag body 11 through the lifting assembly, the feeding hopper 12 is brought closer to the discharge pipe 9. The rotating motor 13 drives the auger 18 to rotate, driving the counterweight in the storage chamber 17 to leak into the feeding hopper 12 along the discharge hole 20 and discharge pipe 9, thereby allowing the counterweight to enter the central cylinder 1107 and change the weight of the entire sandbag body 11.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A martial arts sandbag with adjustable weight and height, comprising a supporting base (1) and a sandbag body (11), characterized in that, The top of the support frame (1) is fixed with a support rod (3), and a fixed rod (7) in an inclined shape is fixed on one side of the support rod (3). A discharge pipe (9) is fixed on one side of the bottom of the fixed rod (7). A storage cavity (17) is opened inside the support rod (3), and the storage cavity (17) is filled with counterweights. A feed hopper (4) is installed on one side of the storage cavity (17). An auger (18) is rotatably connected to the inner wall of the storage cavity (17). A rotary motor (13) for driving the auger (18) to rotate is fixedly installed at the bottom of the support frame (1). A discharge hole (20) communicating with the storage cavity (17) and the discharge pipe (9) is opened inside the fixed rod (7). A filling hopper (12) is provided on the top of the sandbag body (11), and the filling hopper (12) is located directly below the discharge pipe (9).

2. The martial arts sandbag with adjustable weight and height according to claim 1, characterized in that, The sandbag body (11) includes an inner liner (1104), and a central cylinder (1107) is fixed on the inner wall of the inner liner (1104). The outer wall of the inner liner (1104) is provided with a filling layer (1103), a buffer layer (1102) and a protective layer (1101) in sequence. The injection hopper (12) is fixedly installed on the top of the inner liner (1104), and the injection hopper (12) is connected to the central cylinder (1107).

3. A martial arts sandbag with adjustable weight and height according to claim 2, characterized in that, A screw hole is provided at the bottom of the inner wall of the central cylinder (1107) and the middle position of the bottom of the inner liner (1104), and a sealing cap (1105) is screwed onto the inner wall of the screw hole. A sealing plug (1106) is fixed on the top of the sealing cap (1105) and fits against the inner wall of the central cylinder (1107).

4. A martial arts sandbag with adjustable weight and height according to claim 3, characterized in that, The top of the support rod (3) is provided with an installation cavity (21), and a lifting assembly is provided on the installation cavity (21). A lifting rod (5) is provided on the lifting assembly. One end of the fixed rod (7) is provided with a guide hole (16), and one end of the lifting rod (5) is fixed with a lifting column (8) that passes through the guide hole (16). A hanging chain (10) is fixedly installed at the bottom of the lifting column (8), and the bottom of the hanging chain (10) is fixedly connected to the top of the inner liner (1104).

5. A martial arts sandbag with adjustable weight and height according to claim 4, characterized in that, The lifting assembly includes a threaded rod (19) rotatably connected in the mounting cavity (21), and a forward and reverse motor (6) for driving the threaded rod (19) to rotate is fixedly installed at the top of the support rod (3). The lifting rod (5) has a threaded hole that matches the outer wall of the threaded rod (19).

6. A martial arts sandbag with adjustable weight and height according to claim 5, characterized in that, The two ends of the inner walls on both sides of the mounting cavity (21) are provided with first guide grooves (15), and the lifting rod (5) is provided with two second guide grooves (23). The lifting rod (5) passes through the first guide groove (15) and the mounting cavity (21) between the second guide groove (23) and the two adjacent first guide grooves (15).

7. A martial arts sandbag with adjustable weight and height according to claim 4, characterized in that, The lifting rod (5) has a limiting groove (22) on one side, and a limiting block (14) is fixed to the outer wall of one side of the support rod (3) and inserted into the limiting groove (22).

8. A martial arts sandbag with adjustable weight and height according to claim 1, characterized in that, Both sides of the top of the support base (1) are fixed with diagonal braces (2) to the outer wall of the support rod (3).

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