Fastening and locking device for bandage and fastening and locking device

Abstract

The embodiment of the utility model provides a fastening and locking device for a bandage and a fastening and locking device.The fastening and locking device for the bandage comprises a fastening base body, a first connecting part and a second connecting part are arranged at the two ends of the fastening base body respectively; the fastening seat body is provided with a through hole for a bandage to penetrate through, a locking mechanism is arranged on one side of the through hole, and the free end of the bandage penetrates through the through hole and then extends out. The locking mechanism comprises a cam which is used for rotating along the rotating shaft and limiting releasing or tensioning of the long binding band, one end of the cam is connected with a manual driving mechanism which drives the cam to rotate forwards and backwards, and the other end of the cam right faces the binding band penetrating through the penetrating hole so as to press, clamp or loosen the binding band to move freely. According to the fastening and locking device, the locking mechanism is matched with the penetrating hole through which the bandage penetrates, so that the stability of the fastening and locking device is improved, the problem that the bandage is separated is effectively avoided, and the stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of fastening equipment technology, specifically to a fastening and locking device and a fastening and locking device for straps. Background Technology

[0002] Fasteners are widely used in home life and transportation. In home life, they are used to secure bags and luggage or to fasten front child seats to electric vehicles by wrapping them with straps. In transportation, goods need to be secured with straps to prevent them from falling off during transport.

[0003] Currently, the mainstream binding method mainly involves manual pulling and knotting on the transport vehicle to secure the goods. However, the binding force is limited by human effort, which can easily lead to insufficient tightening. Manual binding methods suffer from drawbacks such as being cumbersome and lacking sufficient tightening force. To increase stability, ratchet strap tensioners are now used for auxiliary binding. These devices typically consist of a fastening base, a fastening flange plate, a lever handle, an actuating flange plate, and a ratchet. They also include a fixing strap connected to the fastening base, and a tensioning strap with one end wound around the ratchet shaft and the other end forming a free end for binding. The fastening base contains a retainer that elastically pushes against the outer circumference of the actuating flange plate, and the lever handle contains a stop that elastically pushes against the outer circumference of the fastening flange plate. A coil spring assembly on one side of the ratchet drives the ratchet shaft to rotate and wind the tensioning strap.

[0004] The fasteners with the above structures are prone to safety issues such as insecure fixing and loose seats. On the other hand, the tensioning devices used for securing automobile cargo have the disadvantages of complex structure and high cost, and are too bulky for use in home bundling and positioning. Utility Model Content

[0005] The problem to be solved by this utility model embodiment is how to provide a fastening and locking device and a fastening and locking device for straps.

[0006] To address the shortcomings of existing technologies, this utility model provides a fastening and locking device and a fastening and locking mechanism for straps, which can meet the requirements for convenient and stable fastening of straps.

[0007] In a first aspect, embodiments of the present invention provide a fastening and locking device for straps, comprising:

[0008] The fastening base body has a first connecting part and a second connecting part respectively provided at both ends;

[0009] The fastening seat body is provided with a through hole for the strap to pass through, and a locking mechanism is provided on one side of the through hole. The free end of the strap passes through the through hole and extends out.

[0010] The locking mechanism includes a cam for rotating along a pivot and restricting the release or tightening of a long strap. One end of the cam is connected to a manual drive mechanism that drives the cam to rotate in both directions. The other end of the cam faces the strap passing through the perforation to clamp or release the strap's free movement.

[0011] In some other embodiments of the windproof counterweight mechanism of the fastening and locking device described in this specification, the side of the cam near the strap is provided with a slope, and the slope extends in the direction of approaching the strap.

[0012] In some other embodiments of the fastening and locking device described in this specification, teeth are provided on the slope surface.

[0013] In some other embodiments of the fastening and locking device described in this specification, the first connecting portion is a plate extending along the length direction of the fastening seat body.

[0014] In some other embodiments of the fastening and locking device described in this specification, the second connecting portion is provided with a connecting hook.

[0015] In some other embodiments of the fastening and locking device described in this specification, the second connecting portion is provided with a connecting ring.

[0016] In some other embodiments of the fastening and locking device described in this specification, the fastening seat body is provided with a protruding ridge perpendicular to the fastening seat body.

[0017] In some other embodiments of the fastening and locking device described in this specification, a pair of sidewalls are provided on the fastening seat body between the first connecting portion and the second connecting portion, and the rotating shaft is fixed on the sidewalls.

[0018] In some other embodiments of the fastening and locking device described in this specification, a torsion spring is provided on the rotating shaft.

[0019] Secondly, this utility model embodiment also provides a fastening and locking device, including a fastening and locking device for a strap and a strap, wherein the strap is connected to one or both ends of the fastening and locking device; the fastening and locking device is the fastening and locking device described above.

[0020] As can be seen from the above technical solution, the present invention provides a fastening and locking device for straps. The locking mechanism's cam rotates along a pivot and restricts the release or tightening of the long strap. When it is necessary to change the strap length or release the fastening lock, pressing the manual drive mechanism moves the cam away, releasing the pressure on the strap and allowing it to move freely. The locking mechanism and the through-hole for the strap to pass through cooperate to increase the stability of the fastening and locking device, effectively preventing the strap from coming loose and improving stability. It will not loosen due to factors such as transportation bumps, further improving the user experience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a fastening and locking device for straps in one embodiment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of a fastening and locking device for straps in one embodiment of the present invention;

[0023] Figure 3 This is a side view of a fastening and locking device for straps in one embodiment of the present invention;

[0024] Figure 4 This is an exploded view of the structure of a fastening and locking device for straps in one embodiment of the present invention;

[0025] Figure 5 This is a side view of a fastening and locking device for straps in one embodiment of the present invention;

[0026] Figure 6 This is a longitudinal cross-sectional structural diagram of a fastening and locking device for straps in one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the back structure of a fastening and locking device for straps in one embodiment of this utility model;

[0028] Figure 8 This is a cross-sectional structural diagram of a fastening and locking device for straps in use, according to one embodiment of the present invention.

[0029] Figure 9 This is a three-dimensional structural diagram of a fastening and locking device for straps in one embodiment of the present invention;

[0030] Figure 10 This is a top view of a fastening and locking device for straps in one embodiment of the present invention;

[0031] Figure 11This is a schematic diagram of the overall structure of a fastening and locking device for straps in one embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram of the fastening and locking device in use in one embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the fastening and locking device in use in one embodiment of the present invention;

[0034] Figure 14 This is a schematic diagram of the fastening and locking device in use in one embodiment of the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] like Figures 1 to 12 As shown in the figure, an embodiment of the present invention provides a fastening and locking device for a strap, comprising: a fastening base body 1, wherein a first connecting portion 11 and a second connecting portion 12 are respectively provided at both ends of the fastening base body 1; the fastening base body 1 is provided with a through hole 10 for the strap 2 to pass through, and a locking mechanism 3 is provided on one side of the through hole 10, wherein the free end of the strap 2 extends out after passing through the through hole 10; the locking mechanism 3 includes a cam 32 for rotating along a rotating shaft 31 and restricting the release or tightening of the long strap, one end of the cam 32 is connected to a manual drive mechanism 37 for driving the cam 31 to rotate forward and backward, and the other end of the cam 31 faces the strap passing through the through hole 10 to clamp or release the free movement of the strap 2. The fastening and locking device for a strap provided in the embodiment of the present invention will be described in detail below.

[0037] like Figures 1 to 5 and Figure 8 As shown in this embodiment of the invention, the free end of the strap 2 extends out after passing through the perforation 10. The strap 2 is pressed close to the cam 32 of the locking mechanism 3, and the cam 32 restricts the release of the strap. When it is necessary to change the length of the strap or release the fastening lock, the manual drive mechanism 37 is pressed to move the cam 31 away, releasing the pressure on the strap 2 and allowing the strap 2 to move freely.

[0038] like Figures 4 to 8As shown, to increase ease of use and maintain the stability of the cam 32 pressing the strap 2, the side of the cam 32 near the strap 2 is provided with a slope 321, which extends in a direction close to the strap 2. The bottom of the slope 321 is closer to the strap 2. To further increase the firmness, teeth 323 are provided on the slope 321.

[0039] like Figures 1 to 11 As shown, in order to effectively ensure that the strap 2 passes smoothly inside and outside the perforation 10 and to ensure that the strap 2 fits tightly against the fastening seat body 1 after being tightened, the first connecting part 11 is plate-shaped and extends along the length direction of the fastening seat body 1. After the strap 2 is tightened, it fits tightly against the fastening seat body 1 along the first connecting part 11, which also facilitates the smooth passage of the strap 2 inside and outside the perforation 10.

[0040] like Figures 1 to 11 As shown, compared with the prior art, to increase ease of use, the second connecting part 12 is provided with a connecting hook 121 or a connecting loop 120. The fastening and locking device for the strap can be easily connected to other components via the connecting hook 121 or the connecting loop 120. The connecting hook 121 or the connecting loop 120 can connect the strap 2 or other connecting objects.

[0041] like Figures 1 to 14 As shown, compared with the prior art, in order to effectively increase the contact area of ​​the cam 32 of the locking mechanism 3 pressing against the strap 2 and increase the friction, the fastening seat body 1 is provided with a protruding ridge 101 perpendicular to the fastening seat body 1. After the cam 32 presses against the strap 2, the other side of the strap is in close contact with the protruding ridge 101. Between the first connecting part 11 and the second connecting part 12, a pair of sidewalls 111 are provided on the fastening seat body 1, and the rotating shaft 31 is fixed on the sidewalls 111. In order to effectively keep the cam 32 of the locking mechanism 3 pressing against the strap 2, a torsion spring 33 is provided on the rotating shaft. Under the torque of the torsion spring 33, the cam 32 is kept pressing against the strap 2. When it is necessary to change the length of the strap or release the fastening lock, by pressing the manual drive mechanism 37, the torque of the torsion spring 33 is contacted, causing the cam 31 to move away, releasing the pressure on the strap 2, and allowing the strap 2 to move freely.

[0042] To further demonstrate the advanced nature of the fastening and locking device for straps provided in this embodiment of the present invention, this embodiment of the present invention also provides a fastening and locking device, such as... Figure 12-14As shown, the fastening and locking device includes: a fastening and locking device for a strap and a strap 2, wherein the strap 2 is connected to one or both ends of the fastening and locking device; the fastening and locking device is the aforementioned fastening and locking device. In this embodiment of the present invention, the fastening and locking device may be provided with a through hole 10 and a corresponding locking mechanism 3 at each end of the fastening base body 1, which can fasten simultaneously in two directions.

[0043] In summary, this utility model provides a fastening and locking device for straps, wherein the cam of the locking mechanism rotates along a pivot and restricts the release or tightening of the long strap. When it is necessary to change the strap length or release the fastening lock, pressing the manual drive mechanism moves the cam away, releasing the compression on the strap and allowing the strap to move freely. The locking mechanism and the through-hole for the strap to pass through cooperate to increase the stability of the fastening and locking device, effectively preventing the strap from coming loose and improving stability. It will not loosen due to factors such as transportation bumps, further enhancing the user experience.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A fastening and locking device for straps, characterized in that, include: A fastening base body, wherein a first connecting part and a second connecting part are respectively provided at both ends of the fastening base body; The fastening seat body is provided with a through hole for the strap to pass through, and a locking mechanism is provided on one side of the through hole. The free end of the strap extends out after passing through the through hole. The locking mechanism includes a cam for rotating along a pivot and restricting the release or tightening of a long strap. One end of the cam is connected to a manual drive mechanism that drives the cam to rotate in both directions. The other end of the cam faces the strap passing through the perforation to clamp or release the strap's free movement.

2. The fastening and locking device according to claim 1, characterized in that, The cam has a slope on the side near the strap, and the slope extends in the direction of approaching the strap.

3. The fastening and locking device according to claim 2, characterized in that, The slope surface is covered with teeth.

4. The fastening and locking device according to claim 1, characterized in that, The first connecting portion is plate-shaped and extends along the length of the fastening seat body.

5. The fastening and locking device according to claim 1, characterized in that, The second connecting part is provided with a connecting hook.

6. The fastening and locking device according to claim 1, characterized in that, The second connecting part is provided with a connecting ring.

7. The fastening and locking device according to claim 1, characterized in that, The fastening seat body is provided with a protruding ridge perpendicular to the fastening seat body.

8. The fastening and locking device according to claim 1, characterized in that, Between the first connecting part and the second connecting part, a pair of sidewalls are provided on the fastening seat body, and the rotating shaft is fixed on the sidewalls.

9. The fastening and locking device according to claim 1, characterized in that, A torsion spring is provided on the rotating shaft.

10. A fastening and locking device, characterized in that, Includes a fastening and locking device for a strap and a strap, the strap being connected to one or both ends of the fastening and locking device; The fastening and locking device is the fastening and locking device according to any one of claims 1-9.

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