Weights for physical training

Abstract

This application relates to the field of physical training technology, and more particularly to a counterweight device for physical training. To address the problem that pulling the counterweight device is difficult, making it unsuitable for trainees at different stages, this application's device includes a housing and a counterweight mechanism. The counterweight mechanism is located above the housing and includes a cylinder connected to the upper surface of the housing. This application adjusts the weight of the device by adding a counterweight block through the cooperation of a counterweight block and a groove. Using an adjusting rod, a threaded ring, and a connecting rod, the end of the connecting rod near the threaded ring moves upward, causing the connecting rod to push a control plate downward. This causes the control plate to push an arc-shaped rubber strip downward, allowing the arc-shaped rubber strip to extend out of the arc-shaped groove and contact the ground. By adjusting the friction between the device and the ground, the difficulty of pulling the counterweight device can be adjusted according to needs, thus making it suitable for trainees at different stages.

Description

Technical Field

[0001] This utility model relates to the field of physical training technology, specifically a counterweight device for physical training. Background Technology

[0002] Physical training is a process that uses various sports activities and exercise methods to improve the body's basic qualities, including strength, endurance, flexibility, speed, coordination, and balance. The goal of physical training is not only to improve athletic performance, but also to enhance physical health, prevent disease, and improve quality of life.

[0003] Referring to patent document CN218740041U, a counterweight device for physical training includes an adjustment component installed inside a tire. The adjustment component includes a sleeve, a support member fixedly connected to the sleeve, a telescopic member connected to the support member, and multiple weight plates placed outside the sleeve. A limit plate is locked to the sleeve and placed on the upper part of the weight plates. It has the characteristics of convenient and stable counterweighting, which solves the problems of poor stability and easy falling off of heavy objects such as bricks and sandbags when tied in the prior art. It is convenient to adjust the counterweight tire according to the training intensity requirements during tire-pulling training.

[0004] While the above-mentioned solution can train physical fitness, it still has some shortcomings in actual use. For example, due to the high friction of the tire surface, it is difficult for beginners to pull the counterweight device during physical training, making it unsuitable for trainees at different stages.

[0005] Based on this, the present invention designs a counterweight device for physical training to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a counterweight device for physical training, in order to solve the problem in the background art that it is difficult to pull the counterweight device, making it unsuitable for trainees at different stages.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a counterweight device for physical training, comprising a housing and a counterweight mechanism. The counterweight mechanism is disposed above the housing and includes a cylinder communicating with the upper surface of the housing. A fixing tube is fixedly installed on the upper surface of the cylinder, and two slots are formed on the upper surface of the fixing tube. An adjusting rod is rotatably mounted on the upper surface of the cylinder via a bearing. A threaded ring is threadedly connected to the outer surface of the adjusting rod. An installation ring is fixedly installed on the upper surface of the housing, and several sets of placement slots are formed on the installation ring. Each placement slot can hold a counterweight block. Two sets of arc-shaped grooves are formed on the bottom surface of the housing. Each of the arc-shaped grooves has an arc-shaped rubber strip slidably connected to its inner wall. A control plate is fixedly installed on the upper surface of the two sets of arc-shaped rubber strips. Several sets of first groove blocks are fixedly installed on the inner top wall of the housing. The first groove blocks are rotatably connected to the middle of the connecting rod by a pin. The end of the connecting rod near the threaded ring is rotatably connected to the second groove block fixed on the outer surface of the threaded ring and a pin. The end of the connecting rod away from the threaded ring is rotatably connected to the third groove block fixed on the upper surface of the control plate and a pin. The upper surface of the adjusting rod has a groove. A vertical plate is slidably connected to the inner wall of the groove. A retaining plate that can cooperate with the retaining groove for limiting is fixedly installed at the top of the retaining plate.

[0008] Preferably, the inner bottom wall of the groove has two limiting grooves, and the inner walls of the two limiting grooves are slidably connected to a limiting block, and the upper surface of the limiting block is fixedly installed to the bottom surface of the upright plate.

[0009] Preferably, a fixing ring is fixedly installed on the outer surface of the cylinder, the bottom surface of the fixing ring is fixedly installed on the upper surface of the shell, and the inner peripheral wall of the fixing ring is fixedly connected to the outer wall surface of the lower part of the cylinder.

[0010] Preferably, a pull rope is fixedly installed on the outer surface of the housing, and a pull strap is fixedly installed at the end of the pull rope.

[0011] Preferably, a set of warning strips is fixedly installed on the outer surface of the housing, and the warning strips are arranged in a ring at equal intervals.

[0012] Preferably, each of the placement slots has two through slots extending to the outer wall of the mounting ring, and an elastic band that can tighten the counterweight in the placement slot is fixedly installed on the upper surface of the mounting ring at the position opposite to the slot opening.

[0013] Preferably, each of the control panels has a sliding hole on its upper surface, and a sliding rod is slidably connected to the inner wall of each sliding hole. The top surface of each sliding rod is fixedly installed to the inner top wall of the housing.

[0014] Preferably, the cylindrical body is coaxial with the shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: by using the combination of counterweight and groove, the counterweight can be added or removed to adjust the weight of the device. By using the combination of adjusting rod, threaded ring and connecting rod, the end of the connecting rod near the threaded ring can be moved upward, thereby allowing the connecting rod to push the control plate downward, and the control plate to push the arc-shaped rubber strip downward, so that the arc-shaped rubber strip can extend out of the arc-shaped groove and contact the ground, thus adjusting the friction between the device and the ground. This allows the difficulty of pulling the counterweight device to be adjusted according to the needs, making it suitable for trainees at different stages. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from a top view;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the orthographic section of this utility model;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of a partial cross-sectional view of the adjusting rod of this utility model;

[0021] Figure 5 This is a three-dimensional structural schematic diagram of the central cross-section of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Shell; 2. Counterweight mechanism; 201. Cylinder; 202. Fixing tube; 203. Slot; 204. Vertical plate; 205. Clamping plate; 206. Mounting ring; 207. Groove; 208. Counterweight block; 209. Arc groove; 210. Arc rubber strip; 211. Threaded ring; 212. Adjusting rod; 213. Control panel; 214. First groove block; 215. Groove; 216. Connecting rod; 217. Second groove block; 218. Third groove block; 3. Warning strip; 4. Pull rope; 401. Pull strap; 5. Elastic band; 6. Through groove; 7. Fixing ring; 8. Sliding hole; 801. Sliding rod; 9. Limiting groove; 901. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 This utility model provides a technical solution: a counterweight device for physical training, including a housing 1 and a counterweight mechanism 2. The counterweight mechanism 2 is disposed above the housing 1 and includes a cylinder 201 connected to the upper surface of the housing 1. A fixing tube 202 is fixedly installed on the upper surface of the cylinder 201. Two slots 203 are formed on the upper surface of the fixing tube 202. An adjusting rod 212 is rotatably installed on the upper surface of the cylinder 201 via a bearing. A threaded ring 211 is threadedly connected to the outer surface of the adjusting rod 212. An installation ring 206 is fixedly installed on the upper surface of the housing 1. Multiple sets of placement slots 207 are formed on the installation ring 206. Counterweight blocks 208 can be selectively placed inside the placement slots 207. The number of counterweight blocks 208 is determined according to needs. Two sets of arc-shaped grooves 209 are formed on the bottom surface of the housing 1. Each arc-shaped groove 209... The inner walls of the housing 1 are slidably connected with arc-shaped rubber strips 210. A control plate 213 is fixedly installed on the upper surface of the two sets of arc-shaped rubber strips 210. Several sets of first groove blocks 214 are fixedly installed on the inner top wall of the housing 1. The first groove blocks 214 are rotatably connected to the middle of the connecting rod 216 by a pin. The end of the connecting rod 216 near the threaded ring 211 is rotatably connected to the second groove block 217 fixed on the outer surface of the threaded ring 211 and a pin. The end of the connecting rod 216 away from the threaded ring 211 is rotatably connected to the third groove block 218 fixed on the upper surface of the control plate 213 and a pin. The upper surface of the adjusting rod 212 is provided with a groove 215. The inner wall of the groove 215 is slidably connected with a vertical plate 204. The top of the vertical plate 204 is fixedly installed with a card plate 205 that can cooperate with the card slot 203 for limiting.

[0026] The first, second, and third grooved blocks are all blocks with recessed grooves. The two side walls of the recessed grooves of the grooved blocks have pin holes for inserting pins. The connecting rod 216 is arc-shaped, and its head, tail, and middle have through holes for inserting pins.

[0027] Please see Figure 4 The inner bottom wall of the groove 215 has two limiting grooves 9. The inner walls of the two limiting grooves 9 are slidably connected to the limiting block 901. The upper surface of the limiting block 901 is fixedly installed with the bottom surface of the upright plate 204. The limiting grooves 9 and the limiting block 901 can guide and limit the sliding of the upright plate 204 to prevent the upright plate 204 from sliding out of the groove 215.

[0028] Please see Figure 2 A fixing ring 7 is fixedly installed on the outer surface of the cylinder 201. The bottom surface of the fixing ring 7 is fixedly installed on the upper surface of the shell 1. The inner circumferential wall of the fixing ring 7 is fixedly connected to the outer wall surface of the lower part of the cylinder 201. The fixing ring 7 can be used to reinforce the cylinder 201 and prevent the cylinder 201 from falling off.

[0029] Please see Figure 1 A pull rope 4 is fixedly installed on the outer surface of the housing 1, and a pull strap 401 is fixedly installed on the left end of the pull rope 4. The pull rope 4 and the pull strap 401 can be used to easily pull the device to move, so as to facilitate the control of the device.

[0030] Please see Figure 1 A set of warning strips 3 are fixedly installed on the outer surface of the housing 1. The warning strips 3 are arranged in a ring at equal intervals. The warning strips 3 can warn others and prevent them from being bumped.

[0031] Please see Figure 2 Each placement slot 207 has two through slots 6 extending to the outer wall of the mounting ring 206. The upper surface of the mounting ring 206 is fixedly equipped with an elastic band 5 at the position opposite the slot opening of the placement slot 207, which can tighten the counterweight 208 in the placement slot 207. The elastic band 5 and the through slots 6 make it easy to pick up and install the counterweight 208, so as to control the weight of the device.

[0032] Please see Figure 3 Each control plate 213 has a sliding hole 8 on its upper surface. A sliding rod 801 is slidably connected to the inner wall of each sliding hole 8. The top surface of each sliding rod 801 is fixedly installed to the inner top wall of the housing 1, and the bottom surface of the sliding rod 801 is connected to the inner bottom wall of the housing 1. The sliding hole 8 and the sliding rod 801 can guide the lifting and sliding of the control plate 213 of the device.

[0033] Please see Figure 3 The cylinder 201 is coaxial with the shell 1, which ensures that the adjusting rod 212 controls the device.

[0034] The implementation principle of the weight device for physical training in this application embodiment is as follows: During use, firstly, pull the clamping plate 205 upwards to move it upwards, allowing the clamping plate 205 to pull the upright plate 204 upwards, causing the upright plate 204 and clamping plate 205 to move out of the slot 203, releasing the limit on the adjusting rod 212. Then, rotate the upright plate 204 and clamping plate 205, causing the clamping plate 205 to drive the adjusting rod 212 to rotate, allowing the adjusting rod 212 to rotate in conjunction with the threaded ring 211. This causes the threaded ring 211 to control the movement of the connecting rod 216, which in turn causes the connecting rod 216 to move the position of the adjustment control plate 213, thereby controlling the arc-shaped rubber strip 210 to extend or retract into the arc-shaped groove 209. This allows adjustment of the friction between the lower surface of the device and the ground. Furthermore, the user can add weight blocks 208 inside the symmetrical placement slots 207 as needed to adjust the weight of the device, making it suitable for users at different stages.

[0035] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A weight device for physical training, comprising a housing (1) and a weight mechanism (2), characterized in that: The counterweight mechanism (2) is located above the housing (1). The counterweight mechanism (2) includes a cylinder (201) connected to the upper surface of the housing (1). A fixing tube (202) is fixedly installed on the upper surface of the cylinder (201). Two slots (203) are opened on the upper surface of the fixing tube (202). An adjusting rod (212) is rotatably installed on the upper surface of the cylinder (201) through a bearing. A threaded ring (211) is threadedly connected to the outer surface of the adjusting rod (212). An installation ring (206) is fixedly installed on the upper surface of the housing (1). Several sets of placement slots (207) are opened on the installation ring (206). Each placement slot (207) can hold a counterweight block (208). Two sets of arc-shaped grooves (209) are opened on the bottom surface of the housing (1). An arc-shaped rubber strip (210) is slidably connected to the inner wall of each arc-shaped groove (209). A control plate (213) is fixedly installed on the upper surface of the two sets of arc-shaped rubber strips (210). Several sets of first groove blocks (214) are fixedly installed on the inner top wall of the housing (1). The first groove block (214) is rotatably connected to the middle of the connecting rod (216) by a pin. The end of the connecting rod (216) near the threaded ring (211) is rotatably connected to the second groove block (217) fixed on the outer surface of the threaded ring (211) and a pin. The end of the connecting rod (216) away from the threaded ring (211) is rotatably connected to the third groove block (218) fixed on the upper surface of the control plate (213) and a pin. The upper surface of the adjusting rod (212) is provided with a groove (215). The inner wall of the groove (215) is slidably connected to a vertical plate (204). The top of the vertical plate (204) is fixedly installed with a card plate (205) that can cooperate with the card slot (203) for limiting.

2. A counterbalance device for physical training according to claim 1, characterized in that: The inner bottom wall of the groove (215) has two limiting grooves (9), and the inner walls of the two limiting grooves (9) are slidably connected to a limiting block (901). The upper surface of the limiting block (901) is fixedly installed with the bottom surface of the upright plate (204).

3. The counterweight device of claim 1, wherein: A fixing ring (7) is fixedly installed on the outer surface of the cylinder (201). The bottom surface of the fixing ring (7) is fixedly installed on the upper surface of the shell (1), and the inner circumferential wall of the fixing ring (7) is fixedly connected to the outer wall surface of the lower part of the cylinder (201).

4. The weight device for physical training according to claim 1, characterized in that: A pull rope (4) is fixedly installed on the outer surface of the housing (1), and a pull strap (401) is fixedly installed at the end of the pull rope (4).

5. A weight device for physical training according to claim 1, characterized in that: A set of warning strips (3) are fixedly installed on the outer surface of the housing (1), and the warning strips (3) are arranged in a ring at equal intervals.

6. The weight device for physical training according to claim 1, characterized in that: Each of the placement slots (207) has two through slots (6) extending to the outer wall of the mounting ring (206). The upper surface of the mounting ring (206) is fixedly equipped with an elastic band (5) that can tighten the counterweight (208) in the placement slot (207) at the position opposite to the slot opening of the placement slot (207).

7. A weight device for physical training according to claim 1, characterized in that: Each of the control panels (213) has a sliding hole (8) on its upper surface. Each sliding hole (8) has a sliding rod (801) slidably connected to its inner wall. The top surface of each sliding rod (801) is fixedly installed to the inner top wall of the housing (1).

8. A weight device for physical training according to claim 1, characterized in that: The cylindrical body (201) is coaxial with the shell (1).

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