Quick-connection automobile safety tensioning device

Abstract

The utility model relates to a quick connection automobile safety tension device, which comprises a main machine and a binding belt, the main machine mainly comprises a seat body assembly, a handle assembly and a belt winding assembly, the seat body assembly comprises a seat body, a main shaft connected with the binding belt is arranged on the seat body, and one or more installation threaded holes are arranged at the bottom of the seat body. The mounting threaded holes can be fixedly formed in the bottom of the seat body in a riveting nut forming mode, and the mounting threaded holes and the seat body form a non-detachable integral structure, so that the tensioning device can be quickly mounted at required positions such as the side wall of a pickup truck, a trailer bracket and a carriage deck through screws, the mounting is convenient and quick, the stability is good, the bearing capacity is large, and the service life of the tensioning device is prolonged. And the use is safe and reliable, so that the technical problems of difficulty in operation, low mounting efficiency and poor stability due to small internal space and adoption of screws and nuts of the conventional tensioning device are effectively solved.

Description

Technical Field

[0001] The utility model relates to an automobile safety tensioning device used for fixing and fastening goods on vehicles such as automobiles, trailers, airplanes, and ships, and more specifically to an automobile safety tensioning device that can be quickly connected to corresponding positions of various vehicles such as automobiles, pickup trucks, and trailers. Background Art

[0002] Automobile safety tensioning devices usually consist of a tensioning device main unit, long and short straps, etc. Among them, the straps are usually flat webbings with or without hooks. The main unit adopts the principle of an anti-reverse rotation ratchet mechanism. The handle directly drives the active pawl, which pushes the ratchet. The ratchet directly drives the main shaft, thereby tightening the straps wrapped around the main shaft. The stop plate prevents the ratchet from reversing, so that a certain tension can be maintained on the straps to tie the goods in place. Depending on the application, the working length of the device will also be different, so there will always be excess straps floating outside the device, which poses a certain safety hazard. It is also very messy after use, which will affect the next use.

[0003] At present, there are some products on the market that automatically retract the strapping belt, which are equipped with a ratchet reel and use the spiral spring energy storage to automatically reel the strapping belt, which can solve the above problems. However, in some special occasions, such as the inner wall of a pickup truck, the trailer bracket, etc., a set of bolts is directly used to connect and fix the automatic strapping tensioning device on it (in this case, the short strap is not needed), which can be reused and does not need to be removed every time, which is very convenient to use. However, the current connection method requires an additional set of screws and nuts. The screws pass through the holes on the bottom seat and the position to be fixed from the inside of the tensioning device base, and then are locked with nuts. Due to the small internal space of the tensioning device, it is not convenient to insert and remove, and it is difficult to tighten with ordinary tools. It is difficult to operate, the installation efficiency is very low, and it is time-consuming and labor-intensive; at the same time, this connection method actually only fixes one place, has poor stability, and low bearing capacity, especially for some special force angles.

[0004] In summary, there is a need to further improve the existing automobile safety tensioning device. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a car safety tensioning device which can be quickly connected and fixed very conveniently, has good stability and large bearing capacity in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: the quick-connect automobile safety tensioning device includes a main body and a strap mainly composed of a seat body component, a handle component and a winding belt component. The seat body component includes a seat body, and a main shaft connected to the strap is installed on the seat body. It is characterized in that one or more mounting threaded holes are provided at the bottom of the seat body so that the tensioning device can be installed to the position to be fixed by screws.

[0007] There are many ways to obtain the threaded hole. Preferably, the installation threaded hole can be fixed to the bottom of the base body by riveting and nut forming, and form an inseparable integral structure with the base body.

[0008] To improve the connection stability, the number of the mounting threaded holes is preferably two, and they can be disposed on both radial sides of the main shaft.

[0009] Since the seat of the tensioning device is generally made of a thin plate material, the mounting threaded hole can be fixed to the bottom of the seat by forming a rivet nut to facilitate processing and maintain the firmness of the connection.

[0010] Preferably, the two mounting threaded holes are respectively set as a first mounting threaded hole and a second mounting threaded hole, wherein the first mounting threaded hole is located on the radial side of the main shaft close to the binding, and protrudes outside the bottom of the seat body, presenting an outward convex shape; the second mounting threaded hole protrudes inward toward the bottom of the seat body, presenting an inward concave shape when viewed from the outside, and is disposed on both radial sides of the main shaft with the first mounting threaded hole. Such a two-hole design can not only avoid the first mounting hole from colliding with the binding installed on the main shaft, but also ensure the installation reliability of the device. Of course, the arrangement and design of the two mounting threaded holes are not limited to this, and can be changed accordingly according to different installation occasions, etc.

[0011] Preferably, the bottom of the base body may also be provided with a connecting plate having mounting holes for the screws to pass through, so that the tensioning device can be installed at the position to be fixed through the connecting plate to solve the connection problem where it is inconvenient to insert screws at some fixed positions (such as the outside of a pickup truck).

[0012] Compared with the prior art, the utility model has the following advantages: the utility model provides one or more threaded mounting holes at the bottom of the seat of the tensioning device, so that the tensioning device can be directly and quickly connected to the corresponding positions of various vehicles such as cars, pickup trucks, trailers, etc. through screws, and it does not need to be removed. After use, the strap can be rolled back into the main unit, which is convenient, fast, safe and reliable to use. The two connection points on both sides of the main shaft can greatly improve the stability and load-bearing capacity of the connection. Therefore, the tensioning device can effectively solve the technical problems of the existing tensioning device due to the small internal space, the difficulty of operating the screws and nuts, the low installation efficiency and the poor stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional exploded schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0015] Figure 3 It is a front view of an embodiment of the utility model;

[0016] Figure 4 A structural cross-sectional view showing the connection between the base body and the rivet nut in the embodiment of the utility model;

[0017] Figure 5 A three-dimensional schematic diagram showing the connection between the main engine and the trailer bracket / side plate of the utility model;

[0018] Figure 6 A three-dimensional schematic diagram showing the connection between the host and the connecting plate of the utility model;

[0019] Figure 7 A structural cross-sectional view showing the connection between the host and the connecting plate of the utility model;

[0020] Figure 8 It is a schematic diagram reflecting that the host of the utility model is connected to the inner wall of the pickup truck through the connecting plate.

[0021] Wherein: main machine 1, seat assembly 11, seat body 111, stop plate 112, stop plate spring 113, support plate 114, pressure plate 115, pressure plate spring 116, shield 117, handle assembly 12, handle 121, active pawl 122, pawl spring 123, tape reel assembly 13, spindle 131, sleeve 132, tape reel 133, coil spring 134, coil spring box 135, ratchet 136, reel 137, retaining spring 1 38; strap 2, webbing 21, hook 22; rivet nut 3, first rivet nut 3a, second rivet nut 3b, mounting threaded hole 31, first mounting threaded hole 31a, second mounting threaded hole 31b; screw 4, first mounting screw 4a, second mounting screw 4b, screw 4'; connecting plate 5, mounting hole 51, first mounting hole 51a, second mounting hole 51b, mounting hole 51'; trailer bracket A, pickup truck side wall B. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] Combination Figure 1-Figure 8 As shown, the quick-connect automobile safety tensioning device of this embodiment includes a main body 1, a strap 2 with a hook 22 and a connecting plate 5, wherein:

[0024] The host 1 can adopt a conventional structure, such as the one in this embodiment Figure 1 As shown in the figure, it mainly includes a seat body assembly 11, a handle assembly 12 and a belt assembly 1, the seat body assembly 11 includes a seat body 111, a shield 117, a support plate 114, a stop plate 112 and a stop plate spring 113 are provided at the front end of the seat body, and a pressure plate 115 and a pressure plate spring 116 are provided at the rear end.

[0025] The handle assembly 12 includes a handle 121, on which an active ratchet 122 and a ratchet spring 123 are mounted. The handle 121 is pivotally connected to the seat 111 and can rotate around the main shaft 131. Rotating the handle 121 can change the action state of the stop plate 112 and the pressure plate 115 on the ratchet 136. The active ratchet 122 is rotatably connected to the handle 121.

[0026] The tape winding assembly 13 includes a tape winding reel 133, a main shaft 131, a sleeve 132, a coil spring 134 and a coil spring box 135. The tape winding reel 133 is a disc composed of two ratchet wheels 136 and a reel 137, and is used to wind the webbing 21 of the strap 2. The ratchet wheel 136 is prevented from reversing by the above-mentioned stop plate 112, and its rotation speed is controlled by the pressure plate 115.

[0027] The handle 121 is located on the inner side of the seat 111, and the tape reel 133 is located on the inner side of the handle 121 and centered. The main shaft 131 passes through the shaft sleeve 132 and the tape reel 133, and is limited by the retaining spring 138. The cross section of the main shaft 131 is special-shaped, which cooperates with the special-shaped hole on the ratchet 136, so that the tape reel 133 can drive the main shaft 131 to rotate together, or in other words, the main shaft 131 can drive the tape reel 133 to rotate together. One end of the main shaft 131 is connected to the inner hook of the coil spring 134, and the outer hook of the coil spring 134 is connected to the coil spring box 135. The coil spring box 135 is fixed on the outer side of the seat 111. The coil spring 134 and the coil spring box 135 can make the tensioning device have an automatic tape retracting function. After use, the strap 2 can be automatically retracted into the host 1 without manual operation, so it is very convenient to use.

[0028] The binding belt 2 is mounted on the main shaft 131 and can be wound onto a belt reel 133 .

[0029] Since the above structure is an existing structure, it will not be described in detail here. Of course, the structure of the main frame is not limited to this, and other similar conventional structures or modified structures can also be adopted.

[0030] The unique feature of the present invention is the improvement of the seat 111, that is, at least one mounting threaded hole 31 is provided at the bottom 1111 of the seat. In order to improve the connection stability, two mounting threaded holes 31 are generally preferred, and preferably they are disposed on both sides of the main shaft 131 in the radial direction. The figure of this embodiment shows two threaded mounting holes, namely the first mounting threaded hole 31a and the second mounting threaded hole 31b described in this article. Since the main body 1 of the tensioning device has its own mounting threaded hole 31 for connection, when using it, it only needs to screw in the screw 4 from the outside (such as Figure 5 As shown), the installation process is very convenient and quick, and it has good stability and large bearing capacity.

[0031] There are many ways to obtain threaded holes, for example: 1. Directly tapping the threads on the mounting holes of the seat body 111, but since the seat body 111 is made of thin plate (also due to the limitation of the seat body material, the tensioning device in the prior art has always been installed using conventional technical means, that is, a mounting hole for the screw to pass through is machined on the seat body, and then the screw and nut are used to connect, and it is not thought that the seat body can be installed with its own mounting threaded holes). In this way, the number of thread turns is small and the strength is weak, so more threads can be obtained by turning the holes; 2. Welding nuts, that is, nuts are welded in the coaxial direction of the mounting holes using different welding methods (gas shielded welding, argon arc welding, resistance welding, etc.); 3. Riveting nuts, the nuts are fixed in the mounting holes of the seat body by riveting, and there are many ways to fix the nuts, for example, ring cutting riveting, flanging riveting, pull rivet nuts, etc., all of which belong to the riveting nut methods described in the utility model.

[0032] The preferred method of obtaining the installation threaded hole 31 in the utility model is the riveting nut method, and the rivet nut 3 is preferred. The two installation threaded holes 31 shown in the figure of this embodiment are respectively fixed on the bottom 1111 of the seat body by a rivet nut 3 (i.e., the first rivet nut 3a and the second rivet nut 3b) and form an integral structure that cannot be disassembled with the seat body 111. Figure 3 , Figure 4 As shown, the first threaded hole 31a is located on the radial side of the main shaft 131 close to the strap 2, and protrudes out of the bottom 1111 of the seat body, and is convex. This design is mainly to avoid the first threaded hole 31a from colliding with the webbing 21 installed on the main shaft 131. The second threaded hole 31b protrudes into the bottom 1111 of the seat body, and is concave from the outside (refer to Figure 2 , Figure 4 ), located at the other radial side of the main shaft 131. Of course, the arrangement and design of the two mounting threaded holes 31a, 31b are not limited thereto, and can be changed accordingly according to different installation occasions, such as the second mounting threaded hole 31b can also be convex, which can also achieve a quick connection effect.

[0033] Since the quick-connect automobile safety tensioning device has its own mounting threaded hole 31, it is also equipped with a corresponding number of screws 4 (including a first mounting screw 4a and a second mounting screw 4b) to connect with the mounting threaded hole 31 on the main body 111 (such as Figure 3 ) to fix the tensioning device to the corresponding position (such as Figure 5 ), such as the side wall B of a pickup truck, the trailer bracket A, the vehicle box deck, etc. where required.

[0034] In addition to the main body 1 being directly connected to the position to be fixed (such as Figure 5 ), and can also be connected to the above position through a connecting plate 5 (such as Figure 6-Figure 8 As shown in FIG. 4 , it is particularly suitable for locations where it is inconvenient to insert screws from the outside, such as pickup trucks. For the screws 4 to pass through, the connecting plate 5 is provided with mounting holes 51 (including first mounting holes 51a and second mounting holes 51b) corresponding to the mounting threaded holes 31 on the base body, and mounting holes 51′ for fixing to the pickup truck. When in use, the connecting plate 5 is first fixed to the main unit 1 with screws 4a and 4b, and then the main unit 1 and the connecting plate 5 are fixed to the pickup truck with screws 4′.

Claims

1. A quick-connect automobile safety tensioning device, comprising a main body (1) and a strap (2) mainly composed of a seat assembly (11), a handle assembly (12) and a belt reel assembly (13) capable of automatically retracting the belt, wherein the seat assembly (11) comprises a seat body (111), and a main shaft (131) connected to the strap (2) is mounted on the seat body (111), characterized in that: One or more threaded mounting holes (31) are provided at the bottom (1111) of the seat body so as to mount the tensioning device at a position to be fixed by means of screws (4).

2. The quick-connect vehicle safety tensioning device according to claim 1, characterized in that: The mounting threaded hole (31) is fixed to the bottom (1111) of the seat body by means of riveting nut forming, and forms an integral structure with the seat body (111).

3. The quick-connect automobile safety tensioning device according to claim 1, characterized in that: There are two mounting threaded holes (31), which are respectively disposed on two radial sides of the main shaft (131).

4. The quick-connect automobile safety tensioning device according to claim 2, characterized in that: The mounting threaded hole (31) is fixed to the bottom (1111) of the seat body by forming a rivet nut (3).

5. The quick-connect automobile safety tensioning device according to claim 3, characterized in that: The two mounting threaded holes (31) are set as a first mounting threaded hole (31a) and a second mounting threaded hole (31b), wherein the first mounting threaded hole (31a) is located on the radial side of the main shaft (131) close to the binding strap (2), and protrudes out of the bottom (1111) of the seat body, presenting an outward convex shape; the second mounting threaded hole (31b) protrudes inwardly toward the bottom (1111) of the seat body, presenting an inward concave shape when viewed from the outside, and is arranged on both radial sides of the main shaft (131) together with the first mounting threaded hole (31a).

6. The quick-connect vehicle safety tensioning device according to any one of claims 1 to 5, characterized in that: The bottom (1111) of the seat body is also provided with a connecting plate (5), and the connecting plate (5) is provided with a mounting hole (51) for the screw (4) to pass through, so that the tensioning device can be installed at the position to be fixed through the connecting plate (5).

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