Hurdle frame

Abstract

The utility model belongs to the technical field of sports equipment, and particularly relates to a hurdle frame which comprises a base, a supporting rod, a lifting rod and a handrail. The supporting rod is installed at the top of the base, the lifting rod is slidably connected to the interior of the supporting rod, the handrail is installed on the inner side of the lifting rod, and an adjusting mechanism is arranged in the lifting rod; and the adjusting mechanism comprises a baffle, a fixing groove, a vertical rod, a circular shaft, a bent rod, a spring and a button, the baffle is fixedly installed at the top of the inner wall of the lifting rod, and the fixing groove is formed in one side of the inner wall of the supporting rod. Through cooperative use of the mechanisms, the height of the hurdle frame can be quickly and conveniently adjusted, a large amount of time and physical strength are saved, particularly, the training or competition efficiency can be improved under the condition that the height needs to be frequently adjusted in training or competition, athletes can more quickly adapt to new heights, and the training efficiency is improved. Therefore, technical exercises or competition preparation can be better carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of sports equipment, in particular to a hurdle frame. Background Art

[0002] Hurdles running is one of the basic track and field events in school physical education, and it is also one of the important ways to improve students' overall quality. In hurdle training, hurdle racks are indispensable sports equipment. Currently, hurdle racks are mostly one-piece structures.

[0003] Referring to the Chinese patent document CN216963563U, an adjustable hurdle frame for physical education teaching is disclosed, comprising two groups of fixed plates, a connecting plate fixedly connected between the two groups of fixed plates, and also comprising: two groups of screw driving mechanisms connected to the fixed plates, the screw driving mechanisms comprising a screw assembly connected to the fixed plates and a sliding fixing assembly arranged on both sides of the screw assembly; a synchronous driving mechanism arranged in the connecting plate. The utility model firstly drives the two groups of screw driving mechanisms synchronously through the synchronous driving mechanism, and at the same time, the screw driving mechanism axially fixes the screw assembly through the sliding fixing assembly, while driving the sliding fixing assembly to rise and fall, so as to adjust the height of the hurdle frame. The utility model realizes the free adjustment of the height of the hurdle frame and improves the practicality of the device.

[0004] Although the existing hurdle rack has a height adjustment function, the user is required to continuously rotate the handle to drive the screw during adjustment, so it will take the user a certain amount of physical strength and time to complete the adjustment. Especially when the height of the hurdle rack needs to be adjusted frequently, the labor intensity of adjusting the hurdle will be increased, and unnecessary physical strength will be wasted. Therefore, a hurdle rack is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a hurdle frame.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: the hurdle frame described in the utility model comprises a base, a support rod, a lifting rod and a handrail; the support rod is installed at the top of the base, the lifting rod is slidably connected to the inside of the support rod, the handrail is installed on the inner side of the lifting rod, and an adjustment mechanism is arranged inside the lifting rod; the adjustment mechanism comprises a baffle, a fixing groove, a vertical rod, a round shaft, a bent rod, a spring and a button, the baffle is fixedly installed on the top of the inner wall of the lifting rod, the fixing groove is opened on one side of the inner wall of the support rod, and the number of the fixing grooves is several and evenly distributed on the support rod. The inner wall of the rod, one end of the vertical rod is movably arranged inside the lifting rod, the other end of the vertical rod passes through the baffle and the lifting rod in sequence, and the other end of the vertical rod extends to the top of the lifting rod, the round shaft is fixedly connected to the inner wall of the lifting rod, the bent rod is connected to the surface of the round shaft through a bearing, one end of the bent rod is connected to the bottom end of the vertical rod through a rotating shaft, the other end of the bent rod passes through the lifting rod and extends to the inside of the fixed groove, the spring is movably sleeved on the surface of the vertical rod, the spring is fixedly connected to the top of the baffle, and the button is fixedly connected to the top of the vertical rod and passes through the inside of the lifting rod.

[0007] Preferably, the surface of the vertical rod is sleeved with a balance plate, the top of the spring is fixedly connected to the balance plate, the top of the baffle is fixedly connected to a limit rod, and the balance plate is slidably connected to the surface of the limit rod.

[0008] Preferably, scale lines are provided on the inner side of the lifting rod, and the scale lines are marked in centimeters.

[0009] Preferably, the front side and the rear side of the lifting rod are fixedly connected with a sliding block, and the front side and the rear side of the inner wall of the support rod are provided with a sliding groove used in conjunction with the sliding block.

[0010] Preferably, a through hole is opened on the inner side of the lifting rod, and the diameter of the through hole is adapted to the bending rod.

[0011] Preferably, the railing is cylindrical in shape, and a protective cover is provided on the surface of the railing.

[0012] Preferably, a clamping piece is fixedly mounted on the inner side of the lifting rod, and the railing is mounted inside the clamping piece.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a hurdle frame. Through the coordinated use of the above-mentioned mechanism, the height of the hurdle frame can be adjusted quickly and conveniently, saving a lot of time and physical strength. In particular, when the height needs to be adjusted frequently during training or competition, the efficiency of training or competition can be improved, which is convenient for athletes to adapt to the new height more quickly, thereby better performing technical practice or competition preparation.

[0015] 2. The utility model provides a hurdle frame. Through the coordinated use of a slider and a slide groove, when the height of the lifting rod of the hurdle frame is adjusted, the lifting rod will drive the slider to slide inside the slide groove. Under the mutual cooperation of the two, the lifting rod can be limited to make it move vertically, thereby preventing the lifting rod from shaking during movement, which may cause the bent rod and the fixed groove to be unable to be accurately and stably connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a front sectional stereogram in the utility model;

[0019] Figure 3 This utility model Figure 2 The enlarged stereogram at A in the middle;

[0020] Figure 4 This utility model Figure 2 The enlarged stereogram of middle B;

[0021] Figure 5 It is a three-dimensional diagram of the sliding block and the sliding groove in the utility model;

[0022] Figure 6 It is a three-dimensional diagram of the scale lines in the utility model;

[0023] Figure 7 It is a stereoscopic diagram of the installation of the clamping piece and the handrail in the utility model.

[0024] Legend:

[0025] 101. Base; 102. Support rod; 103. Lifting rod; 104. Handrail; 201. Baffle; 202. Fixing groove; 203. Vertical rod; 204. Round shaft; 205. Bending rod; 206. Spring; 207. Button; 208. Balance plate; 209. Limit rod; 3. Scale line; 401. Slider; 402. Slide groove; 5. Through hole; 6. Protective cover; 7. Connector. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Specific examples are given below.

[0028] See also Figure 1 - Figure 7The utility model provides a hurdle frame, including a base 101, a support rod 102, a lifting rod 103 and a railing 104; the support rod 102 is installed on the top of the base 101, the lifting rod 103 is slidably connected to the inside of the support rod 102, the railing 104 is installed on the inner side of the lifting rod 103, and an adjustment mechanism is arranged inside the lifting rod 103; the adjustment mechanism includes a baffle 201, a fixing groove 202, a vertical rod 203, a round shaft 204, a bent rod 205, an elastic The spring 206 and the button 207, the baffle 201 is fixedly installed on the top of the inner wall of the lifting rod 103, the fixing groove 202 is opened on one side of the inner wall of the support rod 102, the number of the fixing grooves 202 is several and evenly distributed on the inner wall of the support rod 102, one end of the vertical rod 203 is movably arranged inside the lifting rod 103, the other end of the vertical rod 203 passes through the baffle 201 and the lifting rod 103 in sequence, and the other end of the vertical rod 203 extends to the top of the lifting rod 103 The round shaft 204 is fixedly connected to the inner wall of the lifting rod 103, the bent rod 205 is connected to the surface of the round shaft 204 through a bearing, one end of the bent rod 205 is connected to the bottom end of the vertical rod 203 through a rotating shaft, and the other end of the bent rod 205 penetrates the lifting rod 103 and extends to the inside of the fixed groove 202, the spring 206 is movably sleeved on the surface of the vertical rod 203, the spring 206 is fixedly connected to the top of the baffle 201, and the button 207 is fixedly connected to the top of the vertical rod 203 and penetrates the inside of the lifting rod 103; the surface of the vertical rod 203 is sleeved with a balance plate 208, the top of the spring 206 is fixedly connected to the balance plate 208, the top of the baffle 201 is fixedly connected to the limit rod 209, and the balance plate 208 is slidably connected to the surface of the limit rod 209; the front and rear sides of the lifting rod 103 are fixedly connected with a slider 401, and the front and rear sides of the inner wall of the support rod 102 are provided with a slide groove 402 used in conjunction with the slider 401.When the user needs to adjust the height of the hurdle frame during operation, the button 207 can be pressed downward to move the button 207 downward. The downward movement of the button 207 will drive the balance plate 208 and the vertical rod 203 to move downward at the same time, and will squeeze the spring 206. The balance plate 208 will slide on the surface of the limit rod 209 when it moves downward, thereby playing an auxiliary limit role for the vertical rod 203 to prevent the vertical rod 203 from shaking or shifting when moving. After the vertical rod 203 moves downward, it will push the curved rod 205 to rotate slightly around the circular axis 204, and make the curved rod 205 disengage from the fixed groove 202. Then, the lifting rod 103 can be pulled upward to adjust the height as needed. When moving, 103 can drive the slider 401 to slide inside the slide groove 402, so as to limit the lifting rod 103 and make it move vertically to prevent the lifting rod 103 from shaking when moving. After adjusting the required height, release the hand from the button 207, and then perform the above steps in reverse under the elastic force of the spring 206, and make the bent rod 205 cooperate with the fixing groove 202 to connect the lifting rod 103 to the inside of the support rod 102, and complete the height adjustment of the lifting rod 103 at the same time. After the lifting rod 103 is adjusted, the handrail 104 can be installed on the inner side of the lifting rod 103, thereby the height of the hurdle frame can be adjusted quickly and conveniently, saving a lot of time and physical strength.

[0029] Furthermore, a scale line 3 is provided on the inner side of the lifting rod 103, and the scale line 3 is marked in centimeters. When adjusting the height of the lifting rod 103 of the hurdle rack during operation, the user can observe the scale line 3, which provides a reliable reference point for the user, and can help the user to clearly adjust the height of the hurdle rack.

[0030] Furthermore, a through hole 5 is provided on the inner side of the lifting rod 103, and the diameter of the through hole 5 is adapted to the bent rod 205. When working, when the bent rod 205 is connected with the fixing groove 202, the bent rod 205 can not only move flexibly inside the through hole 5, but also facilitates the bent rod 205 to pass through the lifting rod 103 and connect with the fixing groove 202.

[0031] Furthermore, the railing 104 is cylindrical in shape, and a protective cover 6 is provided on the surface of the railing 104. When working, the pressure can be more evenly distributed on the athlete's body when crossing under the circular railing 104, and the protective cover 6 helps to reduce the risk of injury and the risk of collision and injury between the athlete and the railing 104.

[0032] Further, a clamping member 7 is fixedly installed on the inner side of the lifting rod 103, and the handrail 104 is installed inside the clamping member 7. During operation, the handrail 104 can be flexibly installed on the inner side of the lifting rod 103 through the clamping member 7, so as to be flexibly disassembled and conveniently carried.

[0033] Working principle: During operation, when the user needs to adjust the height of the hurdle frame, the button 207 can be pressed downward to move the button 207 downward. The downward movement of the button 207 will drive the balance plate 208 and the vertical rod 203 to move downward at the same time, and will squeeze the spring 206. The balance plate 208 will slide on the surface of the limit rod 209 when it moves downward, so as to play an auxiliary limit role for the vertical rod 203 to prevent the vertical rod 203 from shaking or shifting when moving. After the vertical rod 203 moves downward, it will push the curved rod 205 to rotate slightly around the circular axis 204, and make the curved rod 205 disengage from the fixed groove 202. Then, the lifting rod 103 can be pulled upward to adjust the height as needed. When the lowering rod 103 moves, it can drive the slider 401 to slide inside the slide groove 402, so as to limit the lifting rod 103 and make it move vertically to prevent the lifting rod 103 from shaking when moving. After adjusting the required height, release the hand from the button 207, and then perform the above steps in reverse under the elastic force of the spring 206, and make the bent rod 205 cooperate with the fixing groove 202 to connect the lifting rod 103 to the inside of the support rod 102, and complete the height adjustment of the lifting rod 103 at the same time. After the lifting rod 103 is adjusted, the handrail 104 can be installed on the inner side of the lifting rod 103, thereby the height of the hurdle frame can be adjusted quickly and conveniently, saving a lot of time and physical strength.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A hurdle frame, comprising a base (101), a support rod (102), a lifting rod (103) and a handrail (104); characterized in that: The support rod (102) is installed on the top of the base (101), the lifting rod (103) is slidably connected to the inside of the support rod (102), the handrail (104) is installed on the inner side of the lifting rod (103), and an adjustment mechanism is provided inside the lifting rod (103); The adjustment mechanism comprises a baffle (201), a fixing groove (202), a vertical rod (203), a round shaft (204), a bent rod (205), a spring (206) and a button (207); the baffle (201) is fixedly mounted on the top of the inner wall of the lifting rod (103); the fixing groove (202) is opened on one side of the inner wall of the support rod (102); there are a plurality of fixing grooves (202) which are evenly distributed on the inner wall of the support rod (102); one end of the vertical rod (203) is movably arranged inside the lifting rod (103); the other end of the vertical rod (203) passes through the baffle (201) and the lifting rod (103) in sequence; and the other end of the vertical rod (203) is One end extends to the top of the lifting rod (103), the round shaft (204) is fixedly connected to the inner wall of the lifting rod (103), the bent rod (205) is connected to the surface of the round shaft (204) through a bearing, one end of the bent rod (205) is connected to the bottom end of the vertical rod (203) through a rotating shaft, the other end of the bent rod (205) penetrates the lifting rod (103) and extends to the inside of the fixed groove (202), the spring (206) is movably sleeved on the surface of the vertical rod (203), the spring (206) is fixedly connected to the top of the baffle (201), and the button (207) is fixedly connected to the top of the vertical rod (203) and penetrates to the inside of the lifting rod (103).

2. A hurdle frame according to claim 1, characterized in that: The surface of the vertical rod (203) is sleeved with a balance plate (208), the top of the spring (206) is fixedly connected to the balance plate (208), the top of the baffle (201) is fixedly connected to a limit rod (209), and the balance plate (208) is slidably connected to the surface of the limit rod (209).

3. A hurdle frame according to claim 1, characterized in that: The inner side of the lifting rod (103) is provided with a scale line (3), and the scale line (3) is marked in centimeters.

4. A hurdle frame according to claim 1, characterized in that: The front and rear sides of the lifting rod (103) are fixedly connected with a sliding block (401), and the front and rear sides of the inner wall of the support rod (102) are provided with a sliding groove (402) used in conjunction with the sliding block (401).

5. A hurdle frame according to claim 1, characterized in that: A through hole (5) is provided on the inner side of the lifting rod (103), and the diameter of the through hole (5) is adapted to the bent rod (205).

6. A hurdle frame according to claim 1, characterized in that: The railing (104) is cylindrical in shape, and a protective cover (6) is provided on the surface of the railing (104).

7. A hurdle frame according to claim 1, characterized in that: A clamping piece (7) is fixedly mounted on the inner side of the lifting rod (103), and the handrail (104) is mounted inside the clamping piece (7).

Images