Automatic take-up strainer

Abstract

The utility model relates to the related technical field of strainers, in particular to an automatic take-up strainer which comprises a winding mechanism, a tightening mechanism, a brake mechanism and a roll clamping mechanism, and the tightening mechanism comprises a winding rod, a connecting shaft, a first connecting gear and a second connecting gear. The tightening mechanism comprises a tightening body and a first stop plate connected to the inner periphery of the middle of the tightening body in a sliding mode, and one end of the tightening body is rotationally connected with the winding rod. The braking mechanism comprises a braking body, a first braking plate rotationally connected to the inner periphery of the bottom of one end of the braking body and a second braking plate slidably connected to the inner periphery of the middle of one end of the braking body, the roll clamping mechanism is connected to one side of the braking body, and one end of the rolling rod is connected with the roll clamping mechanism. According to the tensioner, the tightening mechanism, the braking mechanism and the roll clamping mechanism are matched, so that when the braid is pulled, the redundant braid is prevented from remaining, the braid collecting speed is controllable, and the use safety and flexibility are high.

Description

Technical Field

[0001] The utility model relates to the technical field related to tensioners, in particular to an automatic belt-retracting tensioner. Background Art

[0002] Conventional tensioners are mostly separated from the webbing. When in use, a longer webbing is needed to tie the goods first, and then the two ends of the webbing are fixed by the tensioner. When the tensioner is engaged, the webbing is further tightened to further tighten the goods.

[0003] The existing tensioners have the following problems when in use: on the one hand, the webbing is separated from the tensioner and is not portable. The webbing needs to be fully opened when in use. Different goods use different webbing lengths. Often, after the goods are tied tightly, a part of the webbing still needs to be knotted and fixed, which is not safe. On the other hand, the webbing still needs to be recycled after use, which is very cumbersome. For this reason, those skilled in the art have proposed an automatic belt retracting tensioner to solve the problems raised in the above background. Utility Model Content

[0004] The purpose of the present utility model is to provide an automatic belt tensioner to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An automatic belt tensioner, comprising:

[0007] The winding mechanism includes a winding rod, a connecting shaft provided on the winding rod, a first connecting gear connected to one end of the connecting shaft, and a second connecting gear connected to the other end of the connecting shaft. A first contact surface and a second contact surface are provided on one end of the winding rod, the second contact surface is located outside the first contact surface, and a third contact surface is provided at the center of the first connecting gear. The third contact surface contacts the first contact surface, and a driving effect is achieved through the contact between the third contact surface and the first contact surface.

[0008] The tightening mechanism includes a tightening body and a first stop plate slidably connected to the inner periphery of the middle portion of the tightening body, one end of the tightening body is rotatably connected to the winding rod, and the other end of the tightening body is installed with a rubber protective handle;

[0009] The brake mechanism includes a brake body, a first brake plate rotatably connected to the inner periphery of the bottom of one end of the brake body, and a second brake plate slidably connected to the inner periphery of the middle portion of one end of the brake body;

[0010] The clamping mechanism is connected to one side of the brake body, a coil spring is installed in the clamping mechanism, and the second contact surface of the winding rod is connected to the coil spring inside the clamping mechanism.

[0011] As a further solution of the present invention: three fan-shaped protrusion interfaces are respectively provided at both ends of the connecting shaft, and three fan-shaped grooves are respectively provided on the surface of the second connecting gear and the first connecting gear, and the fan-shaped grooves can be matched and connected with the fan-shaped protrusion interfaces.

[0012] As a further solution of the present invention: a first protective cover is provided on the outer side of the first connecting gear, and a second protective cover is provided on the outer side of the second connecting gear.

[0013] As a further solution of the present invention: a first locking plate and a second locking plate are respectively provided on both sides of one end of the tightening body, a spring is provided at the rear end of the first stop plate, and a first rubber sleeve is installed on the first stop plate, and the first stop plate is driven to move by pressing the first rubber sleeve.

[0014] As a further solution of the present invention: a retaining spring is respectively provided below the first brake plate and above the second brake plate, a second rubber sleeve is installed on the top of the first brake plate, and brake folding plates are connected to both sides of the bottom end of the first brake plate.

[0015] The utility model has the following advantages: the tensioner can be combined with the webbing, is easy to carry and simple to use; when pulling the webbing, the pulled length is consistent with the use length, and there will be no excess webbing left, avoiding the safety hazard of excess webbing spreading out; after use, the webbing can be automatically collected, avoiding the tedious manual recovery; the webbing can be pulled and stopped at will through the tightening mechanism, and the belt collection speed can be controlled to avoid the safety hazard caused by excessive belt collection speed; and the tightening mechanism and the braking mechanism of the overall tensioner have a large opening and closing range, which is convenient to unfold, and force can be applied after unfolding. The webbing can be better tightened by pressing, and the stability in use is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 Schematic diagram of the external structure of the clamping mechanism in the embodiment of the present utility model.

[0018] Figure 3 This is an exploded view of the tightening mechanism in the embodiment of the present utility model.

[0019] Figure 4 It is a structural schematic diagram of the braking mechanism in an embodiment of the present utility model.

[0020] Figure 5 This is a schematic structural diagram of the first brake plate in an embodiment of the present utility model.

[0021] Figure 6 It is a structural diagram of the tightening mechanism in an embodiment of the present utility model.

[0022] Figure 7 This is a side view of an embodiment of the present invention in an opened state.

[0023] Figure 8 This is a side view of the closed state of an embodiment of the utility model.

[0024] In the figure: 1. Winding mechanism; 11. Winding rod; 111. First contact surface; 112. Second contact surface; 12. Connecting shaft; 13. Second connecting gear; 14. Second protective cover; 15. First connecting gear; 151. Third contact surface; 16. First protective cover; 2. Tightening mechanism; 21. Tightening body; 22. Rubber protection handle; 221. First engaging plate; 222. Second engaging plate; 23. First stop plate; 24. First rubber sleeve; 3. Braking mechanism; 31. Braking body; 32. First brake plate; 321. Braking folding plate; 33. Second rubber sleeve; 34. Second brake plate; 4. Webbing; 5. Winding mechanism. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0026] Example 1: Please refer to Figures 1 to 8, an automatic belt tensioner includes a winding mechanism 1, a tightening mechanism 2, a braking mechanism 3 and a winding mechanism 5, the winding mechanism 1 includes a winding rod 11, a connecting shaft 12 provided on the winding rod 11, a first connecting gear 15 connected to one end of the connecting shaft 12 and a second connecting gear 13 connected to the other end of the connecting shaft 12, one end of the winding rod 11 is provided with a first contact surface 111 and a second contact surface 112, the second contact surface 112 is located on the outer side of the first contact surface 111, and a third contact surface 151 is provided at the center position of the first connecting gear 15, the third contact surface 151 contacts the first contact surface 111, and the driving effect is achieved by the contact between the two. The tightening mechanism 2 includes a tightening body 21 and a first stop plate 23 slidably connected to the inner periphery of the middle part of the tightening body 21, the tightening body 21 is a concave plate-shaped structure, The first stop plate 23, the first brake plate 32 and the second brake plate 34 are opened, the retaining spring in the retaining mechanism 5 is released, and the webbing 4 is restored and recovered.

[0027] See also Figure 1 、 Figure 3 , three fan-shaped protrusion interfaces are respectively provided at both ends of the connecting shaft 12, and three fan-shaped grooves are respectively provided on the surface of the second connecting gear 13 and the first connecting gear 15, and the fan-shaped grooves can be matched with the fan-shaped protrusion interfaces. A first protective cover 16 is provided on the outside of the first connecting gear 15, and a second protective cover 14 is provided on the outside of the second connecting gear 13. The first protective cover 16 is used to protect the connection between the first connecting gear 15 and one end of the connecting shaft 12, and the second protective cover 14 is used to protect the connection between the second connecting gear 13 and the other end of the connecting shaft 12.

[0028] Example 2: See Figure 4 、 Figure 6On the basis of embodiment 1, a first engaging plate 221 and a second engaging plate 222 are respectively provided on both sides of one end of the tightening body 21, a spring is provided at the rear end of the first stop plate 23, and a first rubber sleeve 24 is installed on the first stop plate 23. The first stop plate 23 is driven to move by pressing the first rubber sleeve 24.

[0029] See also Figure 5 A retaining spring is provided below the first brake plate 32 and above the second brake plate 34. A second rubber sleeve 33 is installed on the top of the first brake plate 32 to facilitate pressing the first brake plate 32. Braking folding plates 321 are connected to both sides of the bottom end of the first brake plate 32.

[0030] Working principle: When in use, first press the first rubber sleeve 24 to open the first stop plate 23 and push the tightening mechanism 2 into the expanded position. When the tightening mechanism 2 is expanded, the tightening body 21 and the second brake plate 34 are replaced to a contact surface with a larger diameter, and then the second brake plate 34 is pushed open to release the webbing 4. At this time, the first connecting gear 15 and the second connecting gear 13 are only controlled by the first brake plate 32, and the brake folding plate 321 on the first brake plate 32 is bent, which can make the first connecting gear 15 and the second connecting gear 13 controlled by a certain amount of force, but when the webbing 4 is manually pulled out, it can be pulled out again, and the force of the webbing 4 coil spring cannot reset the webbing 4. Pull out the webbing 4 to the required length and press the first rubber sleeve 24 again. Open the first stop plate 23 and push the tightening mechanism 2 into the tightening position. At this time, push the tightening mechanism 2 back and forth, and the tightening mechanism 2 drives the first connecting gear 15 and the second connecting gear 13 to rotate, and then the gear part fixed in the connecting shaft 12 is recovered, and the webbing 4 pulled out from the outside becomes shorter, so as to achieve the purpose of tightening and tie the goods tightly. When the bag is put away after use, the tightening mechanism 2 is pushed in again until it is unfolded. Similarly, the first stop plate 23 and the second brake plate 34 are both open at this time, and the second rubber sleeve 33 is pressed to open the first brake plate 32. At this time, the webbing 4 is reset by the force of the gear driven by the coil spring. During the reset process, the release speed of the webbing 4 is controlled by the force of pressing the first brake plate 32, and when it needs to stop, it only needs to be pressed.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic belt tensioner, characterized in that: include: A winding mechanism (1) comprises a winding rod (11), a connecting shaft (12) arranged on the winding rod (11), a first connecting gear (15) connected to one end of the connecting shaft (12), and a second connecting gear (13) connected to the other end of the connecting shaft (12); a first contact surface (111) and a second contact surface (112) are provided on one end of the winding rod (11); the second contact surface (112) is located outside the first contact surface (111); a third contact surface (151) is provided at the center of the first connecting gear (15); the third contact surface (151) contacts the first contact surface (111), and a driving effect is achieved through the contact between the two; A tightening mechanism (2) comprises a tightening body (21) and a first stop plate (23) slidably connected to the inner periphery of the middle portion of the tightening body (21); one end of the tightening body (21) is rotatably connected to the winding rod (11); and the other end of the tightening body (21) is provided with a rubber protective handle (22); A brake mechanism (3) comprising a brake body (31), a first brake plate (32) rotatably connected to the inner periphery of the bottom of one end of the brake body (31), and a second brake plate (34) slidably connected to the inner periphery of the middle portion of one end of the brake body (31); A coiling mechanism (5) is connected to one side of the brake body (31), a coil spring is installed in the coiling mechanism (5), and the second contact surface (112) of the winding rod (11) is connected to the coil spring inside the coiling mechanism (5).

2. The automatic belt tensioner according to claim 1, characterized in that: Three fan-shaped protruding interfaces are respectively provided at both ends of the connecting shaft (12), and three fan-shaped grooves are respectively provided on the surfaces of the second connecting gear (13) and the first connecting gear (15), and the fan-shaped grooves can be matched and connected with the fan-shaped protruding interfaces.

3. The automatic belt tensioner according to claim 2, characterized in that: A first protective cover (16) is provided on the outer side of the first connecting gear (15), and a second protective cover (14) is provided on the outer side of the second connecting gear (13).

4. The automatic belt tensioner according to claim 1, characterized in that: A first engaging plate (221) and a second engaging plate (222) are respectively provided on both sides of one end of the tightening body (21); a spring is provided at the rear end of the first stop plate (23); a first rubber sleeve (24) is installed on the first stop plate (23); and the first stop plate (23) is driven to move by pressing the first rubber sleeve (24).

5. The automatic belt tensioner according to claim 1, characterized in that: A retaining spring is provided below the first brake plate (32) and above the second brake plate (34), a second rubber sleeve (33) is installed at the top of the first brake plate (32), and brake folding plates (321) are connected to both sides of the bottom end of the first brake plate (32).

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