Cable tie

Abstract

A cable tie, comprising a locking head (1) and a strap body (2) connected to each other; two ends of the inner cavity of the locking head (1) are respectively provided with an insertion opening (12) and a pull-out opening (11); the strap body (2) is provided with strap teeth (3), and the inner cavity of the locking head (1) is provided with locking teeth (4) matching the strap teeth (3); one end of the strap body (2) can be inserted the insertion opening (12), so that the locking head (1) and the strap body (2) define a fixing cavity (7) for fixing an article; a strap tooth (3) has a small end (35) and a large end (36) in the width direction, and in the length direction of the strap body (2), the width of the strap tooth (3) gradually increases from the small end (35) towards the large end (36).

Description

A type of cable tie Technical Field

[0001] This invention relates to the field of cable tie technology, and in particular to a cable tie. Background Technology

[0002] Cable ties, also known as wire ties, cable management ties, or locking straps, are a type of strap used to bundle items. Classified by material, cable ties can generally be divided into nylon cable ties, stainless steel cable ties, and powder-coated stainless steel cable ties. Classified by function, there are many types, including ordinary cable ties, removable cable ties, label cable ties, fixed locking cable ties, pin-type cable ties, and heavy-duty cable ties, among others. Cable ties are widely used in Christmas gift factories, electronics factories, wire processing plants, wire and cable factories, toy factories, festive occasions, stationery and general merchandise stores, fresh food supermarkets, household goods, electrical appliances, connectors, and other items for bundling.

[0003] Cable ties consist of a fixedly connected strap body and a locking head. The locking head has a spring with locking teeth. One side of the strap body has a row of teeth integrally formed on its outer wall. In use, the strap body passes through the locking head, causing the spring to engage the locking teeth with the teeth under its own elasticity, thus achieving the effect of preventing the strap body from slipping out and fixing it in place. However, this type of cable tie currently has the following shortcomings: when the user operates one end of the strap body into the locking head, it is not smooth and requires a lot of effort, resulting in a poor user experience. Summary of the Invention

[0004] The present invention provides a cable tie to solve the technical problem in existing cable ties that the user has difficulty pulling the cable tie smoothly when one end of the cable tie enters the locking head, which is laborious and results in a poor user experience.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A cable tie includes a locking head and a cable body connected to each other. The inner cavity of the locking head forms an insertion port and a pull-out port at both ends, respectively. The cable body is provided with teeth. The inner cavity of the locking head is provided with locking teeth that are adapted to the teeth. One end of the cable body can extend into the insertion port so that the locking head and the cable body enclose a fixing cavity for fixing an item.

[0007] The belt teeth have a small end and a large end in the width direction, and in the length direction of the belt body, the width of the belt teeth increases from the small end to the large end.

[0008] In one embodiment, the teeth are V-shaped teeth, which include a first tooth and a second tooth connected to each other, the first tooth and the second tooth being set at an angle, the small end being the connection point of the first tooth and the second tooth, and the large end being the other end of the V-shaped tooth away from the small end.

[0009] In one embodiment, the first tooth and the second tooth are symmetrically arranged about the length of the belt.

[0010] In one embodiment, the V-shaped teeth are internal teeth, and grooves are provided on both opposite sides of the belt body in the thickness direction, and each groove is provided with a plurality of internal teeth;

[0011] The side of the inner tooth near the locking head forms an inclined inner guide surface, the side of the inner tooth near the locking head forms an inner stop surface, and the outer wall of the belt between two adjacent inner teeth forms an inner flat groove.

[0012] In one embodiment, the locking tooth is an elastic block, and a plurality of movable teeth are provided on one side surface of the elastic block, the movable teeth being adapted to the V-shaped teeth;

[0013] The V-shaped teeth are located on the side surface of the belt body facing the fixed cavity, and the elastic block is located in the inner cavity of the locking head near the side wall of the belt body; or, the V-shaped teeth are located on the side surface of the belt body away from the fixed cavity, and the elastic block is located in the inner cavity of the locking head away from the side wall of the belt body.

[0014] In one embodiment, the belt body is provided with V-shaped teeth on both opposite sides, and the V-shaped teeth on both sides of the belt body are adapted to the locking teeth. The V-shaped teeth on both sides of the belt body in the thickness direction are asymmetrical structures.

[0015] In one embodiment, the V-shaped teeth are internal teeth, and grooves are provided on both opposite sides of the belt body in the thickness direction, and each groove is provided with a plurality of internal teeth;

[0016] The groove near the locking head forms a bending groove, which extends from the end of the belt near the locking head to the locking head.

[0017] In one embodiment, the cable tie further includes a curved portion, with the locking head and the strap body respectively connected to the two ends of the curved portion along its length. The bending groove extends sequentially from one end of the strap body near the curved portion to the curved portion and the locking head.

[0018] In one embodiment, the locking head has a first fixing surface facing the fixing cavity, the bent portion has a second fixing surface facing the fixing cavity, and the belt has a third fixing surface facing the fixing cavity;

[0019] The second fixing surface is an arc-shaped surface, the length extension direction of the first fixing surface is tangent to the length extension direction of the second fixing surface, and / or the length extension direction of the third fixing surface is tangent to the length extension direction of the second fixing surface.

[0020] In one embodiment, the locking tooth includes a fixed tooth and an elastic block, the fixed tooth and the elastic block being located on opposite sides of the inner cavity of the locking head, and the fixed tooth and the elastic block engaging with the belt teeth on opposite sides of the belt body.

[0021] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects:

[0022] In this embodiment of the invention, when the cable tie enters the inner cavity of the locking head from the insertion port along its length direction, the small end and the large end of the teeth of the cable tie enter and engage with the locking teeth in sequence. Since the width of the teeth of the cable tie increases from the small end to the large end, the gradually increasing width plays a guiding role, making it easier for the cable tie to enter the locking head and requiring less effort from the user when pulling the cable tie.

[0023] In addition, the teeth extend roughly along the length of the belt. The teeth are like reinforcing ribs and play a protective role when the belt is subjected to external forces in the cross-sectional direction, which can effectively prevent the cross-section of the belt from breaking. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the overall structure of the cable tie in one embodiment of the present invention;

[0026] Figure 2 is an enlarged view of the cable tie area A shown in Figure 1;

[0027] Figure 3 is an enlarged view of the cable tie area A shown in Figure 1 from another perspective;

[0028] Figure 4 is an enlarged view of the cable tie area B shown in Figure 1;

[0029] Figure 5 is an enlarged view of the cable tie section shown in Figure 1;

[0030] Figure 6 is a cross-sectional view of a portion of the cable tie shown in Figure 1 when the strap body is inserted into the locking head;

[0031] Figure 7 is a schematic diagram of the overall structure of the cable tie in the second embodiment of the present invention;

[0032] Figure 8 is an enlarged view of the cable tie area C shown in Figure 7;

[0033] Figure 9 is a cross-sectional view of a portion of the cable tie shown in Figure 7 when the strap body is inserted into the locking head.

[0034] Figure 10 is a schematic diagram of the overall structure of the cable tie in the third embodiment of the present invention;

[0035] Figure 11 is an enlarged view of the cable tie area D shown in Figure 10;

[0036] Figure 12 is an enlarged view of the cable tie area D shown in Figure 10 from another perspective;

[0037] Figure 13 is a cross-sectional view of a portion of the cable tie shown in Figure 10 when the strap is inserted into the locking head.

[0038] The annotations in the attached figures are explained as follows:

[0039] 1. Locking head; 11. Pull-out outlet; 12. Inlet; 13. First fixing surface; 2. Belt body; 21. Third fixing surface;

[0040] 3. Toothed; 32. Groove; 33. Internal tooth; 331. Internal guide surface; 332. Internal stop surface; 334. Internal flat groove; 34. Bent groove; 35. Small end; 36. Large end; 37. V-shaped tooth; 371. First tooth; 372. Second tooth;

[0041] 4. Locking tooth; 41. Fixed tooth; 42. Elastic block; 43. Movable tooth;

[0042] 5. Protruding head; 52. Guide section;

[0043] 6. Bending portion; 61. Second fixing surface;

[0044] 7. Fixed cavity. Detailed Implementation

[0045] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Referring to Figures 1 to 13, an embodiment of the present invention provides a cable tie for bundling items.

[0049] Referring to Figures 1 to 6, the cable tie includes a locking head 1 and a strap body 2 connected to each other. The inner cavity of the locking head 1 forms an inlet 12 and a pull-out outlet 11 at its two ends, respectively. The strap body 2 is provided with strap teeth 3. The inner cavity of the locking head 1 is provided with locking teeth 4 that are adapted to the strap teeth 3. One end of the strap body 2 can extend into the inlet 12 so that the locking head 1 and the strap body 2 enclose and form a fixing cavity 7 for fixing the item.

[0050] Referring to Figures 1 and 5, Figure 5 illustrates that the tooth 3 has a small end 35 and a large end 36 in the width direction, and the width of the tooth 3 increases from the small end 35 to the large end 36 in the length direction of the belt body 2.

[0051] In this embodiment of the invention, when the cable tie 2 enters the inner cavity of the locking head 1 from the insertion port 12 along its length direction, the small end 35 and the large end 36 of the teeth 3 enter and engage with the locking teeth 4 in sequence. Since the width of the teeth 3 increases from the small end 35 to the large end 36, the gradually increasing width plays a guiding role, making it easier for the cable tie 2 to enter the locking head 1, and making it easier for the user to pull the cable tie 2.

[0052] In addition, the teeth 3 extend roughly along the length of the belt body 2. The teeth 3 are like reinforcing ribs, which play a protective role when the belt body 2 is subjected to external force in the cross-sectional direction, and can effectively prevent the cross-section of the belt body 2 from breaking.

[0053] Referring again to Figure 5, specifically, the belt tooth 3 is a V-shaped tooth 37, which includes a first tooth 371 and a second tooth 372 connected to each other. The first tooth 371 and the second tooth 372 are set at an included angle. The small end 35 is the connection point of the first tooth 371 and the second tooth 372, and the large end 36 is the other end of the V-shaped tooth 37 away from the small end 35. In this way, the first tooth 371 and the second tooth 372 both extend in a straight line, making it smoother to pull the belt body 2 into the locking head 1.

[0054] It is understood that in other embodiments, the teeth 3 can be configured in other shapes, such as semi-circular teeth composed of two arc-shaped teeth. Any technical solution that can guide the belt by increasing the width of the teeth 3 in the length direction of the belt body 2 should be within the protection scope of this invention.

[0055] Furthermore, the first tooth 371 and the second tooth 372 are symmetrically arranged about the length of the belt body 2. In this way, when the user pulls the belt body 2, the force on both sides of the V-shaped tooth 37 is even, making the pulling smoother.

[0056] Specifically, the V-shaped teeth 37 are internal teeth 33, and the outer surface of the belt body 2 is provided with grooves 32. Multiple internal teeth 33 are provided in the grooves 32. An inclined inner guide surface 331 is formed on the side of the internal teeth 33 away from the locking head 1, and an inner stop surface 332 is formed on the side of the internal teeth 33 near the locking head 1. An inner flat groove 334 is formed on the outer wall of the belt body 2 between two adjacent internal teeth 33. By providing the inner guide surface 331, the resistance when the user pulls the belt body 2 can be reduced, further improving the smoothness of pulling.

[0057] Referring to Figure 6, specifically, the locking tooth 4 is an elastic block 42, and a plurality of movable teeth 43 are provided on one side surface of the elastic block 42. The movable teeth 43 are adapted to the V-shaped teeth 37. Because of the elastic block 42, the user can operate the elastic block 42 to rotate relative to the side wall of the inner cavity of the locking head 1, thereby releasing the engagement of the movable teeth 43 with the V-shaped teeth 37. Under the action of external force, the belt 2 can slide in the inner cavity of the locking head 1, thereby removing the belt 2 from the locking head 1.

[0058] Specifically, the V-shaped teeth 37 are located on the side surface of the cable tie 2 facing the fixing cavity 7, and the elastic block 42 is located on the side wall of the locking head 1 near the cable tie 2. Thus, when the cable tie is used to bind an item, the V-shaped teeth 37 come into contact with the item, increasing the friction between the cable tie 2 and the item, making the cable tie more secure.

[0059] Referring to Figures 7, 8, and 9, in another embodiment, Figure 9 illustrates that the V-shaped teeth 37 are located on the side surface of the strap body 2 away from the fixing cavity 7, and the elastic block 42 is located on the side wall of the locking head 1 away from the strap body 2. Thus, when the cable tie is used to bind an item, the V-shaped teeth 37 are exposed on the strap body 2, while the surface of the strap body 2 close to the item is free of V-shaped teeth 37. This prevents the V-shaped teeth from leaving marks on the item, keeping the item surface intact.

[0060] Referring to Figures 10 to 13, in one embodiment, Figure 13 shows that V-shaped teeth 37 are provided on both sides of the belt body 2. The V-shaped teeth 37 on both sides of the belt body 2 are adapted to the locking teeth 4. The V-shaped teeth 37 in the thickness direction of the belt body 2 have an asymmetrical structure.

[0061] Since both sides of the belt body 2 are provided with teeth 3, combined with the locking teeth 4 provided on the inner wall of the locking head 1, when binding, the end of the belt body 2 away from the locking head 1 extends into the inlet 12 and is pulled out from the outlet 11, thereby binding the item by passing the belt body 2 through the locking head 1. At this time, the teeth 3 on both sides of the belt body 2 engage with the locking teeth 4 to achieve the purpose of preventing the belt body 2 from moving backward. The setting of the teeth 3 on both sides makes the overall thickness of the belt body 2 uniform, avoiding the breakage of the belt body 2 when binding and bending. At the same time, the force on both sides is reduced, avoiding the force on individual teeth and preventing the teeth from breaking. The engagement on both sides prevents the teeth from loosening when the belt body 2 is pulled, making the binding more stable.

[0062] Referring to Figure 13, the V-shaped teeth 37 in the thickness direction of the belt body 2 are set as an asymmetrical structure. The V-shaped teeth 37 on both sides of the thickness direction of the belt body 2 are staggered in the length direction of the belt body 2. This can prevent the V-shaped teeth 37 on both sides from disengaging from the locking teeth 4 in the locking head 1 at the same time when under force, making the binding more stable.

[0063] Referring to Figures 8 and 12, specifically, the V-shaped tooth 37 is an internal tooth 33, and grooves 32 are provided on both sides of the belt body 2 in the thickness direction. Each groove 32 is provided with multiple internal teeth 33. A bending groove 34 is formed at the end of the groove 32 near the locking head 1. The bending groove 34 extends from the end of the belt body 2 near the locking head 1 to the locking head 1.

[0064] It is understood that in other embodiments, if the V-shaped teeth 37 protrude from the outer surface of the belt body 2 and are not considered to be sharp, the V-shaped teeth 37 can also be set as convex teeth. In this case, the V-shaped teeth 37 on both sides of the belt body 2 are convex teeth, or the V-shaped teeth 37 on both sides of the belt body 2 are internal teeth 33 and convex teeth respectively, which is still within the protection scope of the present invention.

[0065] The bending groove 34 does not have teeth 3 and the thickness of the bent cable tie at the corresponding position of the bending groove 34 is reduced, which makes it easier for the bent cable tie to bend inward through the bending groove 34 and thus pass through the locking head 1.

[0066] Referring to Figures 11 to 13, in this embodiment, the cable tie also includes a bent portion 6. The two ends of the bent portion 6 in the length direction are respectively connected to the locking head 1 and the strap body 2. The bending groove 34 extends sequentially from the end of the strap body 2 near the bent portion 6 to the bent portion 6 and the locking head 1.

[0067] A curved part 6 is provided between the locking head 1 and the strap body 2. The extension direction of the curved part 6 is inclined to the extension direction of the strap body 2. So when binding, the curved part 6 can be close to the outer surface of the item and reduce the gap between the curved cable tie and the item, which can prevent the item from sliding out of the fixing cavity 7 and making the binding more stable.

[0068] Referring again to Figure 13, specifically, the locking head 1 has a first fixing surface 13 facing the fixing cavity 7, the curved portion 6 has a second fixing surface 61 facing the fixing cavity 7, and the belt body 2 has a third fixing surface 21 facing the fixing cavity 7. The second fixing surface 61 is an arc-shaped surface and extends along the arc direction. The length extension direction of the first fixing surface 13 is tangent to the length extension direction of the second fixing surface 61, and / or, the length extension direction of the third fixing surface 21 is tangent to the length extension direction of the second fixing surface 61.

[0069] This allows for a smoother transition area between the second fixing surface 61 and the first fixing surface 13, reducing bending, or a smoother transition area between the second fixing surface 61 and the third fixing surface 21, reducing bending. As a result, the first fixing surface 13, the second fixing surface 61, and the third fixing surface 21 can fit tightly against the outer surface of the item, preventing the item from sliding out of the fixing cavity 7 and making the binding more secure.

[0070] Specifically, in this embodiment, the locking tooth 4 includes a fixed tooth 41 and an elastic block 42. The fixed tooth 41 is fixedly provided on the inner wall of the locking head 1 away from the belt body 2. One end of the elastic block 42 is fixedly connected to the inner wall of the locking head 1 near the belt body 2. A plurality of movable teeth 43 are fixedly provided on the side of the elastic block 42 near the fixed tooth 41. The fixed tooth 41 and the movable teeth 43 respectively mesh and match with the V-shaped teeth 37 on both sides of the thickness direction of the belt body 2. The width of the elastic block 42 is equal to the width of the groove 32. The end of the elastic block 42 near the insertion port 12 is fixedly connected to the inner wall of the locking head 1. The fixed tooth 41 is near the inner wall of the locking head 1 at the pull-out port 11.

[0071] Thus, by setting the fixed tooth 41 and the movable tooth 43, the belt body 2 achieves the purpose of meshing force on both sides. The force on both sides reduces the force on individual teeth, avoiding tooth breakage. The meshing on both sides prevents the teeth from loosening when the belt body 2 is pulled, thus improving the binding strength. In addition, due to the provision of the elastic block 42, the user can operate the elastic block 42 to rotate relative to the side wall of the inner cavity of the locking head 1, thereby releasing the engagement of the movable tooth 43 with the V-shaped tooth 37. Under the action of external force, the belt body 2 can slide in the inner cavity of the locking head 1.

[0072] Referring to Figures 1, 4, 7 and 10, in some embodiments, the end of the belt body 2 away from the locking head 1 is formed with an extension head 5, the thickness of which is less than the thickness of the belt body 2, so that the extension head 5 extends into the inlet 12 and drives the belt body 2 into the inner cavity of the locking head 1.

[0073] Furthermore, a triangular guide portion 52 is formed at the end of the protruding head 5 away from the locking head 1, and the width of the guide portion 52 increases from the end away from the locking head 1 to the end closer to the locking head 1. In this way, the width of the lower end of the guide portion 52 is smaller, so that the guide portion 52 can be aligned with the insertion port 12, making it easier for the user to insert the guide portion 52 into the insertion port 12.

[0074] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A cable tie, characterized in that, The device includes a locking head and a belt body that are connected to each other. The inner cavity of the locking head forms an inlet and a pull-out outlet at both ends, respectively. The belt body is provided with belt teeth. The inner cavity of the locking head is provided with locking teeth that are adapted to the belt teeth. One end of the belt body can extend into the inlet so that the locking head and the belt body can surround and form a fixing cavity for fixing an item. The belt teeth have a small end and a large end in the width direction, and in the length direction of the belt body, the width of the belt teeth increases from the small end to the large end.

2. The cable tie according to claim 1, characterized in that, The toothed band is a V-shaped tooth, which includes a first tooth and a second tooth that are connected to each other. The first tooth and the second tooth are set at an angle. The small end is the connection point between the first tooth and the second tooth, and the large end is the other end of the V-shaped tooth away from the small end.

3. The cable tie according to claim 2, characterized in that, The first tooth and the second tooth are symmetrically arranged about the length of the belt.

4. The cable tie according to claim 2, characterized in that, The V-shaped teeth are internal teeth, and the outer surface of the belt is provided with grooves, each of which is provided with multiple internal teeth; The side of the inner tooth near the locking head forms an inclined inner guide surface, the side of the inner tooth near the locking head forms an inner stop surface, and the outer wall of the belt between two adjacent inner teeth forms an inner flat groove.

5. The cable tie according to claim 4, characterized in that, The locking tooth is an elastic block, and a plurality of movable teeth are provided on one side surface of the elastic block, the movable teeth being adapted to the V-shaped teeth; The V-shaped teeth are located on the side surface of the belt body facing the fixed cavity, and the elastic block is located in the inner cavity of the locking head near the side wall of the belt body; or, the V-shaped teeth are located on the side surface of the belt body away from the fixed cavity, and the elastic block is located in the inner cavity of the locking head away from the side wall of the belt body.

6. The cable tie according to claim 2, characterized in that, The belt body has V-shaped teeth on both opposite sides, and the V-shaped teeth on both sides of the belt body are adapted to the locking teeth. The V-shaped teeth on both sides of the belt body in the thickness direction are asymmetrical.

7. The cable tie according to claim 6, characterized in that, The V-shaped teeth are internal teeth, and grooves are provided on both sides of the belt body in the thickness direction. Each groove is provided with multiple internal teeth. The groove near the locking head forms a bending groove, which extends from the end of the belt near the locking head to the locking head.

8. The cable tie according to claim 7, characterized in that, The cable tie also includes a curved portion, with the locking head and the cable body respectively connected to the two ends of the curved portion along its length. The bending groove extends sequentially from one end of the cable body near the curved portion to the curved portion and the locking head.

9. The cable tie according to claim 8, characterized in that, The locking head has a first fixing surface facing the fixing cavity, the bent portion has a second fixing surface facing the fixing cavity, and the belt has a third fixing surface facing the fixing cavity; The second fixing surface is an arc-shaped surface, the length extension direction of the first fixing surface is tangent to the length extension direction of the second fixing surface, and / or the length extension direction of the third fixing surface is tangent to the length extension direction of the second fixing surface.

10. The cable tie according to claim 6, characterized in that, The locking teeth include fixed teeth and elastic blocks. The fixed teeth and the elastic blocks are located on the side walls of opposite sides of the inner cavity of the locking head, and the fixed teeth and the elastic blocks respectively engage with the belt teeth on opposite sides of the belt body.

Images