Stretch-retractable custom netting

Abstract

The utility model belongs to the technical field of special net, especially for the special net of stretch retraction, including the storage box, the both sides inner wall of storage box rotatory link with the rotary lever. The utility model discloses through operating the pull rod and drive special net body movement, because special net body winding is on the winding roller, and special net body drives the rotary lever rotation through the winding roller, and the rotary lever drives the ratchet wheel and the reel spring rotation, and the reel spring continues to draw out along with special net body, and the spring elasticity increases, and the pawl prevents the ratchet wheel reverse rotation, and after special net body is stretched to the length required, the user can fix it in the position needed and uses, when not using, moves the swing lever, and the swing lever drives the pawl rotation and compresses the spring, and the pawl no longer is connected with the ratchet wheel buckle, and the reel spring releases the force storage, and through the rotary lever drives the winding roller counterclockwise rotation, and the counterclockwise rotation of winding roller makes special net body rewrap on it, realizes automatic retraction, thereby can restore to the original state automatically.

Description

Technical Field

[0001] This utility model relates to the field of special mesh technology, specifically to a stretchable and retractable special mesh. Background Technology

[0002] Specialized mesh, widely used in construction, agriculture, sports facilities, and security, is favored for its unique physical properties and diverse applications. Its flexibility and durability are particularly important in situations requiring temporary isolation, shielding, or protection. However, existing specialized mesh products, especially those designed for retraction after stretching, present some significant technical challenges and inconveniences in use. Traditionally, many custom-made nettings, after being stretched, lack an effective retraction mechanism or have design flaws, making it difficult for them to automatically return to their original state. This forces users to manually rewind the netting after stretching, which is not only time-consuming and labor-intensive but also significantly reduces work efficiency. This is especially true in situations involving large-scale or frequent use of custom-made netting, such as the installation and dismantling of fencing in sports stadiums or the deployment of temporary isolation netting at construction sites, where manual rewinding is particularly cumbersome and inefficient. Therefore, we propose a stretch-and-retractable custom-made netting to solve these problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a specially designed stretchable and retractable mesh, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution: A specially designed retractable mesh includes a storage box. A rotating rod is rotatably connected between the inner walls of both sides of the storage box. A winding roller is fixedly connected to the rotating rod. A specially designed mesh body is wound and fixedly connected to the winding roller. One side of the specially designed mesh body extends outside the storage box and is fixedly connected to a pull rod. An operation box is fixedly connected to the top of the storage box. The top end of the rotating rod extends into the operation box and is fixedly connected to a ratchet. A fixing rod is fixedly connected to one inner wall of the operation box. A coil spring is fixedly connected to the rotating rod. One end of the coil spring is fixedly connected to one side of the fixing rod. A rotating shaft is rotatably connected to one inner wall of the operation box. A pawl is fixedly connected to the end of the rotating shaft. The pawl engages with the ratchet. A swing rod is fixedly connected to one side of the pawl.

[0005] Furthermore, a limiting hole is provided on the inner wall of the other side of the operation box, and the inner wall of the limiting hole is slidably connected to the outer side of the swing rod.

[0006] Furthermore, a rectangular hole is provided on one inner wall of the storage box, and the inner wall of the rectangular hole is slidably connected to the outer side of the specially made mesh body.

[0007] Furthermore, a circular groove is provided on the bottom inner wall of the storage box, and two limiting rods are slidably connected to the circular groove. The ends of the limiting rods are fixedly connected to the bottom end of the winding roller.

[0008] Furthermore, the swing arm is a component made of rubber.

[0009] Furthermore, the bottom of the operating box is open, and a spring is fixedly connected between the inner wall of the other side of the operating box and the pawl.

[0010] Compared with the prior art, this utility model provides a specially designed mesh for stretching and retracting, which has the following beneficial effects: This invention utilizes a lever to move a specially designed net body, causing it to gradually unfold. As the net body winds around a take-up roller, it drives the roller to rotate. The roller, in turn, rotates a rotating rod, which in turn rotates a ratchet and a coil spring. As the net body continues to be pulled out, the spring's elasticity increases, preventing the ratchet from reversing and thus preventing the net body from rewinding onto the take-up roller. Once the net body is stretched to the desired length, the user can fix it in the desired position. When not in use, moving the swing lever rotates the ratchet and compresses the spring, disengaging the ratchet from the ratchet. The coil spring releases its stored energy, causing the take-up roller to rotate counterclockwise via the rotating lever. This counterclockwise rotation of the take-up roller causes the net body to rewind onto it, achieving automatic retraction and returning the net body to its original state. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the pull rod of this utility model after it is concealed. Figure 3 This is a three-dimensional structural diagram of the storage box of this utility model cut open; Figure 4 This is a three-dimensional structural diagram of the cut-open operation box of this utility model; Figure 5 This is a partial cutaway three-dimensional structural diagram of the storage box of this utility model.

[0012] In the diagram: 1. Storage box; 2. Rotating rod; 3. Rewinding roller; 4. Special mesh body; 5. Pull rod; 6. Operation box; 7. Ratchet; 8. Fixing rod; 9. Coil spring; 10. Rotating shaft; 11. Pawl; 12. Swing rod; 13. Limiting hole; 14. Rectangular hole; 15. Circular groove; 16. Limiting rod; 17. Spring. Detailed Implementation

[0013] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0014] like Figure 1-5 As shown, an embodiment of this utility model proposes a special retractable mesh, including a storage box 1. A rotating rod 2 is rotatably connected between the inner walls of the two sides of the storage box 1. A winding roller 3 is fixedly connected to the rotating rod 2. A special mesh body 4 is wound and fixedly connected to the winding roller 3. One side of the special mesh body 4 extends out of the storage box 1 and is fixedly connected to a pull rod 5. An operation box 6 is fixedly connected to the top of the storage box 1. The top end of the rotating rod 2 extends into the operation box 6 and is fixedly connected to a ratchet 7. A fixing rod 8 is fixedly connected to one inner wall of the operation box 6. A coil spring 9 is fixedly connected to the rotating rod 2. One end of the coil spring 9 is fixedly connected to one side of the fixing rod 8. A rotating shaft 10 is rotatably connected to one inner wall of the operation box 6. A pawl 11 is fixedly connected to the end of the rotating shaft 10. The pawl 11 meshes with the ratchet 7. A swing rod 12 is fixedly connected to one side of the pawl 11. The operation pull rod 5 drives the special mesh body 4 to move, causing the special mesh body 4 to gradually unfold. As the special mesh body 4 is wound around the take-up roller 3, the special mesh body 4 drives the take-up roller 3 to rotate. The take-up roller 3 drives the rotating rod 2 to rotate, and the rotating rod 2 drives the ratchet 7 and the coil spring 9 to rotate. As the special mesh body 4 continues to be pulled out, the elasticity of the coil spring 9 increases. The pawl 11 prevents the ratchet 7 from reversing, thereby preventing the special mesh body 4 from rewinding onto the take-up roller 3. After the special mesh body 4 is stretched to the required length, the user can fix it in the required position for use. When not in use, the swing rod 12 is moved. The swing rod 12 drives the pawl 11 to rotate and compresses the spring 17. The pawl 11 is no longer engaged with the ratchet 7. The coil spring 9 releases its stored force and drives the take-up roller 3 to rotate counterclockwise through the rotating rod 2. The counterclockwise rotation of the take-up roller 3 causes the special mesh body 4 to rewind onto it. The spring 17 is used to push the pawl 11 back to its original position when it is disengaged from the ratchet 7, achieving automatic retraction and thus automatically returning to the original state.

[0015] In some embodiments, a limiting hole 13 is provided on the inner wall of the other side of the operation box 6. The inner wall of the limiting hole 13 is slidably connected to the outer side of the swing rod 12. The setting of the limiting hole 13 plays a limiting role.

[0016] In some embodiments, a rectangular hole 14 is provided on the inner wall of one side of the storage box 1, and the inner wall of the rectangular hole 14 is slidably connected to the outer side of the special mesh body 4.

[0017] In some embodiments, a circular groove 15 is provided on the bottom inner wall of the storage box 1, and two limiting rods 16 are slidably connected on the circular groove 15. The ends of the limiting rods 16 are fixedly connected to the bottom end of the take-up roller 3. The setting of the limiting rods 16 limits the take-up roller 3.

[0018] In some embodiments, the swing arm 12 is a rubber component.

[0019] In some embodiments, the bottom of the operation box 6 is open, and a spring 17 is fixedly connected between the inner wall of the other side of the operation box 6 and the pawl 11. The spring 17 serves to reset the device.

[0020] In operation, the special mesh body 4 is wound around the take-up roller 3 in a retracted state. The user operates the pull rod 5, which moves the special mesh body 4, causing it to gradually unfold. Since the special mesh body 4 is wound around the take-up roller 3, it drives the take-up roller 3 to rotate. The take-up roller 3 then drives the rotating rod 2 to rotate, which in turn drives the ratchet 7 and the coil spring 9 to rotate. As the special mesh body 4 continues to be pulled out, the spring spring 9's elasticity increases, and the pawl 11 prevents the ratchet 7 from reversing, thus preventing the special mesh body 4 from rewinding onto the take-up roller. 3. After the special net body 4 is stretched to the required length, the user can fix it in the desired position for use. When not in use, move the swing rod 12. The swing rod 12 drives the pawl 11 to rotate and compress the spring 17. The pawl 11 is no longer engaged with the ratchet 7. The coil spring 9 releases its stored force and drives the winding roller 3 to rotate counterclockwise through the rotating rod 2. The counterclockwise rotation of the winding roller 3 causes the special net body 4 to be rewound around it. The spring 17 is used to push the pawl 11 back to its original position when it is disengaged from the ratchet 7, so as to achieve automatic retraction and thus automatically restore it to its original state.

[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A specially designed stretchable and retractable mesh, including a storage box (1), characterized in that: A rotating rod (2) is rotatably connected between the inner walls of both sides of the storage box (1). A winding roller (3) is fixedly connected to the rotating rod (2). A special net body (4) is wound and fixedly connected to the winding roller (3). One side of the special net body (4) extends to the outside of the storage box (1) and is fixedly connected to a pull rod (5). An operation box (6) is fixedly connected to the top of the storage box (1). The top of the rotating rod (2) extends into the operation box (6) and is fixedly connected to a ratchet (7). A fixed rod (8) is fixedly connected to one side of the inner wall of the operation box (6), and a coil spring (9) is fixedly connected to the rotating rod (2). One end of the coil spring (9) is fixedly connected to one side of the fixed rod (8). A rotating shaft (10) is rotatably connected to one side of the inner wall of the operation box (6). A pawl (11) is fixedly connected to the end of the rotating shaft (10). The pawl (11) meshes with the ratchet (7). A swing rod (12) is fixedly connected to one side of the pawl (11).

2. The special tension-retraction mesh according to claim 1, characterized in that: A limiting hole (13) is provided on the inner wall of the other side of the operation box (6), and the inner wall of the limiting hole (13) is slidably connected to the outer side of the swing rod (12).

3. The special tension-retraction mesh according to claim 2, characterized in that: A rectangular hole (14) is provided on one inner wall of the storage box (1), and the inner wall of the rectangular hole (14) is slidably connected to the outer side of the special mesh body (4).

4. The special tension-retraction mesh according to claim 3, characterized in that: The storage box (1) has a circular groove (15) on its bottom inner wall. Two limiting rods (16) are slidably connected to the circular groove (15). The ends of the limiting rods (16) are fixedly connected to the bottom end of the winding roller (3).

5. The special tension-retraction mesh according to claim 3, characterized in that: The swing arm (12) is a rubber component.

6. The special tension-retraction mesh according to claim 5, characterized in that: The bottom of the operation box (6) is open, and a spring (17) is fixedly connected between the inner wall of the other side of the operation box (6) and the pawl (11).

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