Tennis middle net fixing frame

Abstract

The utility model relates to the technical field of tennis frames, in particular to a tennis middle net fixing frame which comprises a balance weight base, moving wheels with brakes are arranged at the bottom of the balance weight base, a lifting mechanism is arranged at the top of the balance weight base, a mounting frame is arranged at the top of the lifting mechanism, the mounting frame is of a U-shaped structure, and the mounting frame is of a U-shaped structure. A winding drum is rotationally connected between two arms of the mounting frame, and a hook is arranged on the surface of the winding drum. The winding drum is mounted on the mounting frame, the net is mounted by the aid of the hook on the winding drum, and the winding drum can rotate by the aid of the driving mechanism, so that the net can be wound and wound conveniently, the length of the net can be changed at any time in a small activity field, and operation and use are facilitated. And a limiting mechanism can be arranged to limit the winding drum at any time, so that the winding drum cannot rotate, and the stability in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tennis racks, in particular to a tennis net fixing rack. Background Art

[0002] Tennis is a ball sport usually played between two single players or two pairs. Players hit the tennis ball with a tennis racket across the net on the tennis court. Tennis was originally called "lawn tennis". Since then, tennis has developed rapidly. Tennis is now popular all over the world and is known as the world's second largest ball sport.

[0003] Traditional tennis racks are generally placed at both ends of the court, and then a net is set between the two tennis racks. A split structure is used between the net and the tennis rack. If the court is limited and a longer net is not needed, the net needs to be disassembled and re-fixed. However, the traditional net rack cannot reel in the net, which makes the operation inconvenient in actual use, which leads to many disadvantages in the use of traditional tennis racks. Utility Model Content

[0004] The purpose of the utility model is to provide a tennis net fixing frame, which solves the problem that the existing technology adopts a split structure between the net and the tennis rack. If the venue is limited and a longer net is not needed, the net needs to be disassembled and re-fixed, and the traditional net rack cannot roll up the net, resulting in inconvenience in actual use, which in turn leads to many disadvantages in the use of traditional tennis racks.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tennis net fixing frame includes a counterweight base, a movable wheel with a brake is arranged at the bottom of the counterweight base, a lifting mechanism is arranged at the top of the counterweight base, a mounting frame is arranged at the top of the lifting mechanism, the mounting frame is a "U"-shaped structure, a winding drum is rotatably connected between the two arms of the mounting frame, a hook is arranged on the surface of the winding drum, and a driving mechanism for driving the winding drum to rotate is arranged on the side wall of the mounting frame near the bottom.

[0007] Preferably, a long groove is provided on the surface of the winding drum, and the hooks are evenly arranged inside the long groove.

[0008] Preferably, a rotating shaft is fixedly mounted on both upper and lower ends of the winding drum, and the winding drum is rotatably connected to two arms of the mounting frame via the rotating shaft.

[0009] Preferably, the driving mechanism includes a transmission rod, which is rotatably inserted in the side wall of the mounting frame, and the port of the transmission rod located inside the mounting frame is fixedly installed with a first bevel gear, and the surface of the rotating shaft is fixedly sleeved with a second bevel gear, and the first bevel gear and the second bevel gear are meshed, and a turning handle is fixedly installed on the end of the transmission rod away from the first bevel gear, and the surface of the turning handle is provided with a limiting mechanism for limiting the rotation of the transmission rod.

[0010] Preferably, the size of the first bevel gear is larger than that of the second bevel gear, and when the transmission rod is rotated, the rotating shaft and the winding drum can be rotated quickly.

[0011] Preferably, the limiting mechanism includes a long rod, a groove is provided on the surface of the turning handle, the long rod is slidably connected to the inside of the groove, a spring is fixedly installed on the top of the long rod, the end of the spring away from the long rod is fixedly connected to the groove, a push block is fixedly installed on the end of the long rod away from the long rod, a limiting rod is slidably connected to the surface of the turning handle, a side wall of the mounting frame is provided with limiting holes in a circular array with the transmission rod as the center, a vertical hole is provided on the surface of the limiting rod, the push block slides through the vertical hole, two sides of the push block are arranged as opposite inclined surfaces, and the two inclined surfaces are distributed up and down so that when the push block moves up and down, the two inclined surfaces can be used to push the limiting rod to move left and right.

[0012] Preferably, the lifting mechanism includes a telescopic rod, a screw, a threaded sleeve and a handle, the telescopic rod is fixedly mounted on the surface of the counterweight base, the top end of the telescopic rod is fixedly connected to the mounting frame, the threaded sleeve is rotatably connected to the counterweight base, the handle is fixedly mounted on the surface of the threaded sleeve, the screw and the threaded sleeve are threadedly connected, and the top end of the screw is fixedly connected to the mounting frame.

[0013] The utility model has at least the following beneficial effects:

[0014] By installing the winding drum on the mounting frame, the net is installed using the hook on the winding drum, and the winding drum can be rotated using the driving mechanism, so that the net can be wound and rolled up conveniently, and the length of the net can be changed at any time in a smaller activity venue, which is convenient for operation and use. The limiting mechanism that can be set can limit the winding drum at any time to prevent it from rotating, thereby improving stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the winding drum structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the push block structure of the utility model.

[0021] In the figure: 1. counterweight base; 2. moving wheel; 3. mounting frame; 4. threaded sleeve; 5. handle; 6. screw; 7. telescopic rod; 8. winding drum; 9. long groove; 10. hook; 11. rotating shaft; 12. first bevel gear; 13. second bevel gear; 14. turning handle; 15. groove; 16. long rod; 17. limiting rod; 18. push block; 19. spring; 20. vertical hole; 21. transmission rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Reference Figure 1-5 The tennis net fixing frame comprises a counterweight base 1, a moving wheel 2 with a brake is arranged at the bottom of the counterweight base 1, a lifting mechanism is arranged at the top of the counterweight base 1, and a mounting frame 3 is arranged at the top of the lifting mechanism. The mounting frame 3 is a "U"-shaped structure, and a winding drum 8 is rotatably connected between the two arms of the mounting frame 3, and a hook 10 is arranged on the surface of the winding drum 8. A driving mechanism for driving the winding drum 8 to rotate is arranged near the bottom of the side wall of the mounting frame 3. During use, the winding drum 8 is installed on the mounting frame 3, and the net is installed using the hook 10 on the winding drum 8. The winding drum 8 can be rotated using the driving mechanism, so as to facilitate the winding and reeling of the net, and then the length of the net can be changed at any time in a smaller activity venue, which is convenient for operation and use. The height of the entire mounting frame 3 can be adjusted by the provided lifting mechanism, so as to facilitate the use by different groups of people.

[0028] Furthermore, a long groove 9 is opened on the surface of the winding drum 8, and the hooks 10 are evenly arranged inside the long groove 9. By arranging the hooks 10 in the long groove 9, it can be avoided that the hooks 10 hook the net when winding up, causing more inconvenience when unwinding.

[0029] Furthermore, the upper and lower ends of the winding drum 8 are fixedly mounted with a rotating shaft 11 , and the winding drum 8 is rotatably connected to the two arms of the mounting frame 3 via the rotating shaft 11 .

[0030] Furthermore, the driving mechanism includes a transmission rod 21, which is rotatably inserted into the side wall of the mounting frame 3, and a first bevel gear 12 is fixedly installed on the port of the transmission rod 21 located inside the mounting frame 3, and a second bevel gear 13 is fixedly sleeved on the surface of the rotating shaft 11, and the first bevel gear 12 and the second bevel gear 13 are meshed. A turning handle 14 is fixedly installed on the end of the transmission rod 21 away from the first bevel gear 12, and a limiting mechanism for limiting the rotation of the transmission rod 21 is provided on the surface of the turning handle 14. When the driving mechanism is in use, the turning handle 14 is manually turned, and the turning handle 14 drives the transmission rod 21 to rotate, the transmission rod 21 drives the first bevel gear 12 to rotate, the first bevel gear 12 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the winding drum 8 to rotate, thereby realizing winding or unwinding. When it is not necessary to rotate the winding drum 8, the limiting mechanism can be used to limit the turning handle 14, thereby limiting the transmission rod 21 and the first bevel gear 12, thereby achieving the purpose of limiting the second bevel gear 13, the rotating shaft 11 and the winding drum 8.

[0031] Furthermore, when the size of the first bevel gear 12 is larger than that of the second bevel gear 13 and the transmission rod 21 is rotated, the rotating shaft 11 and the winding drum 8 can be rotated quickly.

[0032] Furthermore, the limiting mechanism includes a long rod 16, a groove 15 is provided on the surface of the turning handle 14, the long rod 16 is slidably connected to the inside of the groove 15, a spring 19 is fixedly installed on the top of the long rod 16, and the end of the spring 19 away from the long rod 16 is fixedly connected to the groove 15, and a push block 18 is fixedly installed on the end of the long rod 16 away from the long rod 16, and a limiting rod 17 is slidably connected to the surface of the turning handle 14, and a side wall of the mounting frame 3 is provided with a circular array with the transmission rod 21 as the center, and a vertical hole 20 is provided on the surface of the limiting rod 17, and the push block 18 slides through the vertical hole 20. The two sides of the push block 18 are arranged as opposite inclined surfaces, and the two inclined surfaces are distributed up and down so that when the push block 18 moves up and down, the two inclined surfaces can be used to push the limiting rod 17 to move left and right. When the limiting mechanism is in use, when it is necessary to rotate the winding drum 8, the long rod 16 can be pulled upward while holding the turning handle 14 by hand, so that When the long rod 16 is close to the horizontal part of the turning handle 14, the spring 19 will be compressed. When the long rod 16 moves, it will drive the pushing block 18 to move synchronously, and the pushing block 18 is located in the vertical hole 20 of the limiting rod 17. When the pushing block 18 moves upward, it will use the inclined surface at the bottom to push the limiting rod 17, so that the limiting rod 17 is disengaged from the limiting hole on the side wall of the mounting frame 3. At this time, the turning handle 14 can be rotated freely. When there is no need to rotate the turning handle 14, the turning handle 14 and the long rod 16 are released. The long rod 16 moves downward under the action of the spring 19, so that the long rod 16 drives the pushing block 18 to move downward. When the pushing block 18 moves downward, it uses its own inclined surface close to the top to push the limiting rod 17 to move in the direction of the limiting hole, so that the limiting rod 17 is inserted in the limiting hole to realize the restriction and fixation of the turning handle 14, thereby making the winding drum 8 unable to rotate easily, avoiding the situation that the winding drum 8 rotates and causes the net to loosen during the use of the net being wound.

[0033] Furthermore, the lifting mechanism includes a telescopic rod 7, a screw 6, a threaded sleeve 4 and a handle 5. The telescopic rod 7 is fixedly mounted on the surface of the counterweight base 1, the top of the telescopic rod 7 is fixedly connected to the mounting frame 3, the threaded sleeve 4 is rotatably connected to the counterweight base 1, the handle 5 is fixedly mounted on the surface of the threaded sleeve 4, the screw 6 is threadedly connected to the threaded sleeve 4, and the top of the screw 6 is fixedly connected to the mounting frame 3. When the lifting mechanism is in use, the handle 5 is manually rotated, the handle 5 drives the threaded sleeve 4 to rotate, and the screw 6 is fixedly connected to the mounting frame 3. The mounting frame 3 can only move in the vertical direction by using the telescopic rod 7, so that the rotation of the threaded sleeve 4 can drive the screw 6 and the mounting frame 3 to move in the vertical direction, thereby achieving the purpose of adjusting the height of the mounting frame 3, which is convenient for adults to use, and also convenient for children to use, and easy to operate.

[0034] In summary, during use, the winding drum 8 is installed on the mounting frame 3, and the ball net is installed using the hook 10 on the winding drum 8. The winding drum 8 can be rotated by the driving mechanism, so as to facilitate winding and reeling the ball net, and then the length of the ball net can be changed at any time in a smaller activity venue, which is convenient for operation and use. The height of the entire mounting frame 3 can be adjusted by the provided lifting mechanism, so as to facilitate use by different groups of people. By arranging the hook 10 in the long groove 9, when the ball net is rolled up, it can be avoided that the hook 10 hooks the ball net, which causes more inconvenience when unwinding. When the driving mechanism is in use, the turning handle 14 is manually turned, and the turning handle 14 drives the transmission rod 21 The first bevel gear 12 is rotated, the transmission rod 21 drives the first bevel gear 12 to rotate, the first bevel gear 12 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the winding drum 8 to rotate, thereby realizing winding or unwinding. When the winding drum 8 does not need to be rotated, the limiting mechanism can be used to limit the turning handle 14, thereby limiting the transmission rod 21 and the first bevel gear 12, and then achieving the purpose of limiting the second bevel gear 13, the rotating shaft 11 and the winding drum 8. When the limiting mechanism is in use, when it is necessary to rotate the winding drum 8, the long rod 16 can be pulled upwards while holding the turning handle 14 by hand. The long rod 16 is close to the horizontal part of the turning handle 14, and the spring 19 will be compressed. When the long rod 16 moves, it will drive the push block 18 to move synchronously, and the push block 18 is located in the vertical hole 20 of the limiting rod 17. When the push block 18 moves upward, it will use the inclined surface at the bottom to push the limiting rod 17, so that the limiting rod 17 is disengaged from the limiting hole on the side wall of the mounting frame 3. At this time, the turning handle 14 can be freely rotated. When it is not necessary to rotate the turning handle 14, the turning handle 14 and the long rod 16 are released. The long rod 16 moves downward under the action of the spring 19, so that the long rod 16 drives the push block 18 to move downward. When the push block 18 moves downward, it uses its own inclined surface close to the top to push the limiting rod 17 toward the limiting rod. The lifting mechanism is in use, and the handle 5 is manually turned, and the handle 5 drives the threaded sleeve 4 to rotate, while the screw rod 6 and the mounting frame 3 are fixedly connected, and the mounting frame 3 can only move in the vertical direction by using the telescopic rod 7, so that the rotation of the threaded sleeve 4 can drive the screw rod 6 and the mounting frame 3 to move in the vertical direction, so as to adjust the height of the mounting frame 3, which is convenient for adults to use, and also convenient for children to use, and easy to operate.

[0035] 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. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tennis net fixing frame, characterized in that: The invention comprises a counterweight base (1), the bottom of which is provided with a moving wheel (2) with a brake, the top of which is provided with a lifting mechanism, the top of which is provided with a mounting frame (3), the mounting frame (3) being a "U"-shaped structure, a winding drum (8) being rotatably connected between two arms of the mounting frame (3), the surface of which is provided with a hook (10), and a driving mechanism for driving the winding drum (8) to rotate being provided at a position near the bottom of the side wall of the mounting frame (3).

2. The tennis net fixing frame according to claim 1, characterized in that: A long groove (9) is provided on the surface of the winding drum (8), and the hooks (10) are evenly arranged inside the long groove (9).

3. The tennis net fixing frame according to claim 1, characterized in that: A rotating shaft (11) is fixedly mounted on both upper and lower ends of the winding drum (8), and the winding drum (8) is rotatably connected to the two arms of the mounting frame (3) via the rotating shaft (11).

4. The tennis net fixing frame according to claim 3, characterized in that: The driving mechanism comprises a transmission rod (21), the transmission rod (21) is rotatably inserted into a side wall of a mounting frame (3), a first bevel gear (12) is fixedly mounted on a port of the transmission rod (21) located inside the mounting frame (3), a second bevel gear (13) is fixedly sleeved on the surface of the rotating shaft (11), the first bevel gear (12) and the second bevel gear (13) are meshed, a turning handle (14) is fixedly mounted on one end of the transmission rod (21) away from the first bevel gear (12), and a limiting mechanism for limiting the rotation of the transmission rod (21) is provided on the surface of the turning handle (14).

5. The tennis net fixing frame according to claim 4, characterized in that: When the size of the first bevel gear (12) is larger than that of the second bevel gear (13) and the rotation transmission rod (21) is reached, the rotating shaft (11) and the winding drum (8) can be made to rotate rapidly.

6. The tennis net fixing frame according to claim 4, characterized in that: The limiting mechanism comprises a long rod (16), a groove (15) is provided on the surface of the turning handle (14), the long rod (16) is slidably connected inside the groove (15), a spring (19) is fixedly installed on the top of the long rod (16), one end of the spring (19) away from the long rod (16) is fixedly connected to the groove (15), a push block (18) is fixedly installed on the end of the long rod (16) away from the long rod (16), a limiting rod (17) is slidably connected to the surface of the turning handle (14), a limiting hole array is provided on the side wall of the mounting frame (3) with the transmission rod (21) as the center, a vertical hole (20) is provided on the surface of the limiting rod (17), the push block (18) slides through the vertical hole (20), and the two sides of the push block (18) are arranged as opposite inclined surfaces, and the two inclined surfaces are distributed up and down so that when the push block (18) moves up and down, the two inclined surfaces can be used to push the limiting rod (17) to move left and right.

7. The tennis net fixing frame according to claim 1, characterized in that: The lifting mechanism comprises a telescopic rod (7), a screw rod (6), a threaded sleeve (4) and a handle (5); the telescopic rod (7) is fixedly mounted on the surface of a counterweight base (1); the top end of the telescopic rod (7) is fixedly connected to a mounting frame (3); the threaded sleeve (4) is rotatably connected to the counterweight base (1); the handle (5) is fixedly mounted on the surface of the threaded sleeve (4); the screw rod (6) is threadedly connected to the threaded sleeve (4); and the top end of the screw rod (6) is fixedly connected to the mounting frame (3).

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