TWI824973B - The flat structure of the rolling net body - Google Patents

Abstract

The present invention relates to a flat structure of a retractable net body. In the present invention, protrusions are respectively provided on the upper and lower ends of the net body, and upper and lower positioning roller modules are arranged on the retractable mechanism to limit the range of movement of the net body. , when the net body is to be unfolded, the net body is guided by the structure of the upper and lower positioning rollers, so that the net body can be drawn out smoothly; Restricted by the limit part of the lower positioning roller module, the mesh body can be rolled up smoothly without any up and down deviation, and avoid problems such as knotting of the mesh body due to uneven storage.

Description

The flat structure of the roll-up net body

The present invention relates to a roll-up mesh with a flat structure, and in particular to a roll-up mesh that is easy to unfold or roll up on a roll-up structure. The upper and lower covers of the roll-up structure are used to fix the position of the mesh. The retracting device can quickly take out and unfold the mesh by pulling the mesh body. When the mesh body is to be stored, the reel of the retracting structure and the positioning structure are used to retract the mesh smoothly on the reel. Equipment person.

According to reports, ball sports have always been a very popular sport for Chinese people. Especially in recent years, domestic sports players have successively achieved top rankings in the world of tennis and badminton. Therefore, during holidays, you can see people practicing in stadiums and even parks. Sports like tennis, badminton and even volleyball.

The aforementioned sports all require balls and rackets, as well as nets to separate the court area on both sides. In the current form, users must prepare the nets and net bodies to be unfolded and set up separately or fixed to the ball racks at both ends through ropes. ; However, the shortcomings of the above structure are: 1. Many meshes are formed in the net and the net body, and the ball net and the net body themselves are soft structures, so sometimes the ball net and the net body are easy to get entangled and knotted, which requires Spend time tidying up; 2. The net and net body need to be unfolded every time they are used, which takes time to use.

Therefore, some industry players have developed a structure such as that in the patent announcement CN217187773U. The first pillar is hollow inside and has openings on the side; the rotating rod is rotatably installed in the first pillar, and one end of the net is first fixed on the rotating rod. The rotation of the rotating rod causes the net to be rolled or unrolled at the opening of the first pillar; the base is fixed to the bottom of the first pillar; the rotating rod is driven to rotate by a driving rotation component installed on the base and located at the bottom of the rotating rod. When it is necessary to rotate the rotating rod to retract or unfold the net, the rotating element is driven to drive the rotating rod to rotate in the first pillar, so that the net can be rolled up or unrolled at the opening of the first pillar. However, the above structural disadvantage is that : 1. Because the net is fixed on the first pillar, the upper and lower ends of the net have less support. Therefore, the net will be skewed and curled; 2. When the net is rolled up , the net will sag due to gravity. Without the help of others, the net will get knotted when retracted, or even be unable to be retracted.

The main purpose of the present invention is to provide a smooth rolling structure of the rolling net body. It is an improvement on the rolling structure of the existing ball net or net body. A hard protrusion is respectively provided at the upper and lower ends of the net body. , wind the mesh body on a reel, assemble the aforementioned reel between an upper cover and a lower cover, and the upper cover and lower cover are equipped with positioning roller sets for limiting the movement of the protrusions. Accordingly, the positioning roller sets will Network restrictions The range of motion allows the net or net body to be unfolded flatly or stored on the reel.

Therefore, the structure of the present invention is composed of a mesh body and a rolling mechanism; the mesh body has a mesh surface, and the upper and lower ends of the mesh surface are respectively provided with a closing edge made of canvas. strips, and a hard protrusion is provided on each edge strip; one side of the net body is combined with the rewinding mechanism, and is driven by the rewinding mechanism to unfold or retract the net body; the net body A vertical traction part is provided on the side opposite to the retracting mechanism, and a cylindrical body is provided on the traction part. By holding the columnar body of the traction part, the mesh body can be smoothly pulled out or rolled up. The retracting mechanism includes a reel, an upper cover, a lower cover and a connecting rod; the aforementioned reel includes an inner shaft, and the inner shaft is axially connected to the upper cover and the lower cover, so that the inner shaft can be in the The upper cover and the lower cover rotate between each other; the outer side of the inner shaft is provided with an outer cylinder for retracting and fixing the mesh body. The outer cylinder is axially connected with the aforementioned inner shaft so that the outer cylinder can follow the inner shaft. The rod rotates together; the upper cover is arranged on the upper end of the reel, and the upper cover is on the inside An upper shaft connection part, an upper roller positioning part and an upper connecting tube part are provided; the upper shaft connection part provides the inner shaft shaft connection of the reel; the upper roller positioning part is provided with an upper positioning roller group; the aforementioned upper positioning part The roller set includes two sets of upper positioning rollers. The edge strip at the upper end of the mesh body penetrates the upper positioning roller set; a limiting portion for limiting the protrusion at the upper end of the mesh body is formed between the two upper positioning rollers, and The width of the upper limit portion is slightly larger than the protrusion, so that the protrusion can move within the upper limit portion without breaking away, and the upper cover is provided with an upper opening at the front end of the upper roller positioning portion. In addition, the column of the traction portion When the net body is retracted, the shape body can just stop at the front end of the upper positioning roller group; the upper connecting tube portion provides the connecting rod shaft; the lower cover is arranged at the lower end of the reel, and the lower cover is on the inside It is provided with a lower shaft connecting part, a lower roller positioning part, and a lower connecting cylinder part; the lower shaft connecting part provides a shaft connection at the lower end of the shaft inside the reel; the lower roller positioning part is provided with a lower positioning roller set; the aforementioned lower positioning roller set It includes two sets of lower positioning rollers, and the edge strip at the lower end of the mesh body penetrates the lower positioning roller set; a limiting portion under the protrusion for limiting the lower end of the mesh body is formed between the two lower positioning rollers, and the lower limit The width of the bit is slightly larger than the protrusion, so that The protrusion can move within the lower limiting portion without breaking away, and the lower cover is provided with an opening at the front end of the lower roller positioning portion; the lower connecting tube portion provides the connecting rod shaft; through the mesh body , the protrusions at the lower end penetrate respectively into the upper limit part of the upper positioning roller set and the lower limit part of the lower positioning roller set, so that the mesh body can be smoothly deployed under the restriction of the upper limit part and the lower limit part. , or evenly wound on the reel.

In an embodiment of the present invention, the protrusion is a nylon rope.

In an embodiment of the present invention, the upper cover and the lower cover are respectively provided with a connecting ring portion, and each of the connecting ring portions can provide a rope body threading sleeve. Accordingly, when the structure of the present invention is to be fixed, the aforementioned rope body is threaded through each connecting ring portion, and then the rope body is fixed on the ground or a ball fixture, so that the present invention can be used stably.

In an embodiment of the present invention, the lower cover is provided with a through hole in the lower connecting tube portion, and the connecting rod is a telescopic rod. The connecting rod can be taken out from the through hole and the invention can be fixed.

In an embodiment of the present invention, the lower cover is provided with a through hole in the lower connecting tube portion, and the aforementioned through hole provides a fixing rod to penetrate.

In an embodiment of the present invention, the edge strip is folded back to form a flange, the flange is joined to the edge strip, and the protrusion is wrapped Cover, thereby achieving fixed protrusions to prevent them from falling off.

In an embodiment of the present invention, each of the edge strips can be injection molded by plastic to cover the edges of the mesh surface.

In an embodiment of the present invention, each of the edge strips adopts thermal pressing technology to cover the edge of the mesh surface, and the aforementioned edge strips, mesh surface, and protrusions can be thermally pressed together. form together.

In an embodiment of the present invention, the inner shaft is further sleeved with a torsion spring, one side of the torsion spring is embedded in an inner slot of the inner shaft, and the torsion spring is provided with a predetermined length. When the torsion The other side of the spring is provided with a joint end, and the joint end is fixed in an outer slot of the outer cylinder. Accordingly, by utilizing the elasticity of the torsion spring, when the net body is unfolded, the torsion spring releases its length to allow the net body to unfold; when the net body is rolled up, the torsion spring is elastically released, allowing the net body to be automatically rolled up.

In an embodiment of the present invention, a rotating handwheel is further provided outside the upper cover, and the aforementioned rotating handwheel is connected to the upper shaft connecting member of the reel. Driven by the rotating handwheel, the net body can be unfolded, or the user can turn the rotating handwheel manually to wind up the net body on the reel.

Through the above description, the characteristics and obtainable effects of the present invention are briefly described as follows:

1. When in use, hold the traction part to take out the mesh body. Due to the protrusions at the upper and lower ends of the mesh body, they are positioned by the upper cover and the lower cover. The roller set and the lower positioning roller set limit the movable position, allowing the mesh body to be taken out in a straight line.

2. When the net body is to be stored, the above-mentioned protrusions are used to limit the movable position by the upper positioning roller set and the lower positioning roller set, so that the net body can be rolled up on the reel in a straight line, and cooperate with the columnar body at the front end of the net body , to prevent the mesh body from breaking away from the upper positioning roller set and the lower positioning roller set.

10: Net body

11: Net surface

12, 13: edge strip

121, 131:Protrusion

14: Traction department

141: Column

100: Rewinding mechanism

20:scroll

21:Inner shaft rod

211:Inner card slot

22:Outer cylinder

221:External card slot

30: Upper cover

301: Upper opening

31: Upper shaft connection part

32: Upper roller positioning part

33: Upper connecting barrel

34: Upper positioning roller group

341: Upper positioning roller

342: Upper limit part

35:Connecting ring part

40:Lower cover

401: Lower opening

41:Lower shaft connection part

42: Lower roller positioning part

43: Lower connecting barrel

431:Through hole

44: Lower positioning roller group

441:Lower positioning roller

442:Lower limit part

45:Connecting ring part

50:Connecting rod

60: Torsion spring

70: Fixed rack rod

H: rope body

Figure 1: Structural perspective view of the present invention.

Figure 2: Structure diagram of the network body.

Figure 3: Structural diagram of the winding mechanism.

Figure 4: Structural exploded view of the winding mechanism.

Figure 5: Structural diagram of fastening the cover.

Figure 6: Structural diagram of the lower cover.

Figure 7: Schematic diagram of the use of the present invention (1).

Figure 8: Schematic diagram of the use of the present invention (2).

As shown in Figures 1 to 4, the structure of the present invention is composed of a mesh body 10 and a winding mechanism 100.

As shown in Figures 1 and 2, the mesh body 10 has a mesh surface 11. The upper and lower ends of the mesh surface 11 are respectively provided with edge strips 12 and 13 made of canvas. The edge strips 12 and 13 are provided with a hard As for the protrusions 121 and 131 of the mass, the aforementioned protrusions can be made of nylon ropes, which are hard but flexible strip-shaped objects.

As shown in FIG. 1 , one side of the mesh body 10 is coupled to the roll-up mechanism 100 and is driven by the roll-up mechanism 100 to unfold or roll up the mesh body 10 .

As shown in Figures 1 and 2, the mesh body 10 is provided with a straight traction part 14 on the side opposite to the retracting mechanism 100, and the traction part 14 is provided with a columnar body 141. By holding the The columnar body 141 of the traction part 14 enables the mesh body 10 to be smoothly pulled out or rolled up.

It is worth mentioning that the edge strips 12 and 13 are folded back to form a folded edge (not shown in the figure). The folded edge is joined to the edge strips 12 and 13 and the protrusions 121 and 131 are covered. Accordingly, the protrusions 121 and 131 are fixed and prevented from falling off. In addition to folding the edge strips 12 and 13 to fix the protrusions 121 and 131, in some embodiments, the edge strips 12 and 13 can be injection molded by plastic to cover the edges of the mesh surface 11. Then, the protrusions 121 and 131 are assembled into the edge strips 12 and 13 . In addition, each of the edge strips 12 and 13 adopts heat pressing technology to cover the edge of the mesh surface 11, and the aforementioned mesh surface 11, edge strips 12, 13, and protrusions can be 121 and 131 are formed together by hot pressing.

As shown in Figures 1 and 2, one side of the mesh body 10 is coupled to the roll-up mechanism 100, and is driven by the roll-up mechanism 100 to unfold or roll up the mesh body 10.

As shown in FIGS. 1 , 3 and 4 , the rewinding mechanism 100 includes a reel 20 , an upper cover 30 , a lower cover 40 and a connecting rod 50 .

As shown in Figures 3 and 4, the aforementioned reel 20 includes an inner shaft 21 and an outer cylinder 22. The inner shaft 21 is axially connected to the upper cover 30 and the lower cover 40, so that the inner shaft 21 can be positioned on the upper cover 30 and the lower cover 40. The upper cover 30 rotates with the lower cover 40 .

As shown in Figures 3 and 4, the outer cylinder 22 is disposed outside the inner shaft 21. The outer cylinder is pivotally connected to the inner shaft 21 so that the outer cylinder 22 can rotate together with the inner shaft 21. .

As shown in Figures 3 and 4, in the main embodiment of this case, the reel 20 uses a spring rolling mechanism to achieve the automatic rewinding function. Please continue to refer to Figures 3 and 4. The inner shaft 21 provides a torsion spring. 60 assembly, the inner shaft 21 is provided with an inner slot 211 on the shaft, one side of the aforementioned torsion spring 60 is embedded in the inner slot 211 and fixed, and the other side of the torsion spring 60 is embedded in an outer part of the outer cylinder 22 The card slot 221 pulls the mesh body 10 provided on the reel 20 to allow the outer cylinder 22 to rotate to achieve the purpose of unfolding the mesh body 10; when the mesh body 10 is released, the torsion spring is elastically released, thereby driving the outer cylinder 22 to rewind. The effect of the 10 rolls of the net body being collected on the reel 20 is obtained.

The above-mentioned embodiment uses the torsion spring 60 to automatically retract. In addition, a rotating handwheel (not shown) can also be provided on the outside of the upper cover 30. The aforementioned rotating handwheel is connected to the upper axis of the reel 20. connect 31 is connected. Driven by the rotating handwheel, the mesh body 10 can be unfolded, or the user can rotate the rotating handwheel manually to wind up the mesh body 10 on the reel 20 .

As shown in Figures 1, 3, 4, and 5, the upper cover 30 is provided at the upper end of the reel 20. The upper cover 30 is provided with an upper shaft connecting portion 31, an upper roller positioning portion 32, and an upper connecting tube on the inside. Department 33.

As shown in FIGS. 1 , 3 , 4 and 5 , the upper shaft connecting portion 31 provides an axial connection with the inner shaft 21 of the reel 20 .

As shown in FIGS. 1 , 3 , 4 and 5 , the upper roller positioning part 32 is provided with an upper positioning roller group 34 .

As shown in Figures 1, 3, 4, and 5, the aforementioned upper positioning roller set 34 includes two sets of upper positioning rollers 341, and the edge strip 12 at the upper end of the mesh body 10 penetrates the upper positioning roller set 34; 2. An upper limit portion 342 is formed between the upper positioning rollers 341 for limiting the protrusion 121 at the upper end of the mesh body 10, and the width of the upper limit portion 342 is slightly larger than that of the protrusion 121, so that the protrusion 121 can be positioned on the upper end of the net body 10. The upper limit portion 342 moves within the upper limit portion 342 without being detached, and the upper cover 30 is provided with an upper opening 301 at the front end of the upper roller positioning portion 32. In addition, the columnar body 141 of the traction portion 14 is just in time when the mesh body 10 is rolled up. The front end of the upper positioning roller group 34 can be stopped.

As shown in Figures 1, 3, 4 and 5, the upper connecting tube 33 provides the axis of the connecting rod 50.

As shown in Figure 1, Figure 3, Figure 4, and Figure 6, the lower cover 40 is provided with At the lower end of the reel 20, the lower cover 40 is provided with a lower shaft connecting portion 41, a lower roller positioning portion 42 and a lower connecting tube portion 43 on the inside.

As shown in FIGS. 1 , 3 , 4 and 6 , the lower shaft connecting portion 41 provides a shaft connection at the lower end of the inner shaft 21 of the reel 20 .

As shown in FIGS. 1 , 3 , 4 and 6 , the lower roller positioning part 42 is provided with a lower positioning roller group 44 .

As shown in Figures 1, 3, 4, and 6, the aforementioned lower positioning roller set 44 includes two sets of lower positioning rollers 441, and the edge strip 13 at the lower end of the mesh body 10 penetrates the lower positioning roller set 44; 2. A lower limiting portion 442 is formed between the lower positioning rollers 441 for limiting the lower end of the protrusion 131 of the mesh body 10 , and the width of the lower limiting portion 442 is slightly larger than that of the protrusion 131 , so that the protrusion 131 can be positioned on the lower end of the net body 10 . The lower limiting portion 442 can move within the lower limiting portion 442 without being detached, and the lower cover 40 is provided with a lower opening 401 at the front end of the lower roller positioning portion 42 .

As shown in Figures 1, 3, 4 and 6, the lower connecting tube 43 provides the axis of the connecting rod 50.

As shown in Figures 1, 3, 5, and 6, the protrusions 121 and 131 at the upper and lower ends of the mesh body 10 penetrate into the upper positioning portion 342 and the lower positioning roller set 34 of the aforementioned upper positioning roller set 34 respectively. 44 of the lower limiting portion 442, so that the mesh body 10 is restricted by the upper limiting portion 342 and the lower limiting portion 442, so that it can be flatly unfolded or flatly rolled up on the reel 20.

As shown in Figure 3 and Figure 7, the lower cover 40 is connected to the cylindrical portion 43 is provided with a through hole 431, and the connecting rod 50 is a telescopic rod. The connecting rod 50 can be taken out from the through hole 431 and the present invention can be fixed.

As shown in FIG. 8 , the upper cover 30 and the lower cover 40 are respectively provided with a connecting ring portion 35 and 45 , and each of the connecting ring portions 35 and 45 can provide a cord body H to pass through. Accordingly, when the structure of the present invention is to be fixed, the aforementioned rope body H is threaded through each of the connecting ring portions 35 and 45, and then the rope body H is fixed on the ground or a ball fixture. The present invention can be stable usage of.

As shown in FIG. 8 , based on the technology of the previous embodiment, in a further embodiment, the lower cover 40 can be provided with a through hole 431 in the lower connecting tube 43 . The aforementioned through hole 431 allows a fixing rod 70 to pass through.

To sum up, the structure of this invention has never been seen in books or publicly used, and it sincerely meets the requirements for invention patent application. We sincerely ask the Jun Bureau to take a clear view and grant the patent as soon as possible. We are most grateful.

10: Net body

11: Net surface

12, 13: edge strip

121, 131:Protrusion

14: Traction department

141: Column

100: Rewinding mechanism

20:scroll

30: Upper cover

301: Upper opening

35:Connecting ring part

40:Lower cover

43: Lower connecting barrel

44: Lower positioning roller group

45:Connecting ring part

50:Connecting rod

Claims (10)

A structure in which the rolling net body is rolled up flatly is composed of a net body and a rolling mechanism; the net body has a grid-like mesh surface, and the upper and lower ends of the mesh surface are respectively provided with a mesh made of canvas. edge strips, and each edge strip is provided with a hard protrusion; one side of the mesh body is combined with the winding mechanism, and is driven by the winding mechanism to unfold or wind up the mesh body; The net body is provided with a vertical traction part on the side opposite to the retracting mechanism, and a columnar body is provided on the traction part. By holding the columnar body of the traction part, the net body can be pulled out smoothly. Or rewinding; the rewinding mechanism includes a reel, an upper cover, a lower cover and a connecting rod; the aforementioned reel includes an inner shaft, and the inner shaft is axially connected to the upper cover and the lower cover, so that the inner shaft It can rotate between the upper cover and the lower cover; an outer cylinder is provided on the outside of the inner shaft to provide retraction and fixation of the mesh body. The outer cylinder is axially connected with the aforementioned inner shaft so that the outer cylinder can follow the movement of the inner shaft. The inner shaft rotates together; the upper cover is arranged on the upper end of the reel, and the upper cover is provided with an upper shaft connecting part, an upper roller positioning part and an upper connecting tube part on the inside; The upper shaft connection part provides the shaft connection of the inner shaft of the reel; the upper roller positioning part is provided with an upper positioning roller set; the aforementioned upper positioning roller set includes two sets of upper positioning rollers, and the edge strip at the upper end of the mesh body penetrates The upper positioning roller group; an upper limit portion for limiting the protrusion at the upper end of the mesh body is formed between the two upper positioning rollers, and the width of the upper limit portion is slightly larger than the protrusion, so that the protrusion can be on the The upper positioning part can move within the upper positioning part without breaking away, and the upper cover is provided with an upper opening at the front end of the upper roller positioning part. In addition, the columnar body of the traction part can just stop the upper positioning roller when the mesh body is retracted. The front end of the set; the upper connecting tube portion provides the connecting rod shaft; the lower cover is provided at the lower end of the reel, and the lower cover is provided with a lower shaft connecting portion, a lower roller positioning portion, and a lower connecting cylinder portion on the inside; The shaft connection part provides the shaft connection at the lower end of the shaft inside the reel; the lower roller positioning part is provided with a lower positioning roller set; the aforementioned lower positioning roller set includes two sets of lower positioning rollers, and the edge strip at the lower end of the mesh body penetrates the lower positioning roller set. Positioning roller group; a lower limit portion of the protrusion for limiting the lower end of the mesh body is formed between the two lower positioning rollers, and the width of the lower limit portion is slightly larger than the protrusion, so that the protrusion can be positioned at the lower limit The lower cover is movable within the lower roller positioning portion without being detached, and the lower cover is provided with an opening at the front end of the lower roller positioning portion; the lower connecting tube portion provides the connecting rod shaft; By the protrusions at the upper and lower ends of the mesh body respectively penetrating into the upper limit portion of the upper positioning roller set and the lower limit portion of the lower positioning roller set, the mesh body is restricted by the upper limit portion and the lower limit portion. down, it can be unfolded flatly or rolled up flatly on the reel. The structure in which the rolling net body is rolled up smoothly as described in claim 1, wherein the protrusion is a nylon rope. As claimed in claim 1, the winding net body is flatly rolled up, wherein the upper cover and the lower cover are respectively provided with a connecting ring portion, and each of the connecting ring portions can provide a rope body threading sleeve. The structure of the rolling net body as claimed in claim 1, wherein the lower cover is provided with a through hole in the lower connecting tube, and the connecting rod is a telescopic rod, and the connecting rod can be connected through the through hole. The hole is taken out and the invention is fixed. The structure of the rolling net body as claimed in claim 1, wherein the lower cover is provided with a through hole in the lower connecting tube, and the aforementioned through hole provides a fixing rod to penetrate. The structure of the rolling net body as described in claim 1, wherein the edge strip is folded back to form a folded edge, the folded edge is joined to the edge strip, and the protrusion is covered, according to In this way, the fixed protrusions are prevented from falling off. The structure of the rolling net body as described in claim 1, wherein the edge strips can be made of plastic injection molding. And cover the edges of the mesh. The structure of the roll-up net body as described in claim 1, wherein each edge strip adopts a thermal pressing technology to cover the edge of the mesh surface, and the aforementioned edge strips can be , mesh surface and protrusions are formed together by hot pressing. The structure of the rolling net body as described in claim 1, wherein the inner shaft is further sleeved with a torsion spring, one side of the torsion spring is embedded in an inner slot of the inner shaft, and the torsion The spring is provided with a predetermined length, and a joint end is provided on the other side of the torsion spring, and the joint end is fixed in an outer slot of the outer cylinder. The structure of rolling up the net body smoothly as claimed in claim 1, wherein a rotating handwheel is further provided on the outside of the upper cover, and the aforementioned rotating handwheel is connected to the upper shaft connecting member of the reel.

Images