Tensioner with automatic winding function

Abstract

The utility model relates to the technical field of strainers, and discloses an automatic winding strainer which comprises a base, a handle rotationally installed on the base, a large baffle rotationally installed on the handle, two half-moon shafts with the two ends penetrating through the handle and the base and gears arranged at the two ends of the two half-moon shafts in a sleeving mode, and the large baffle is used in cooperation with the two gears. By arranging the large baffle, the gear, the rotating assembly and the fixing assembly, the large baffle is used for fixing the gear, then the rotating assembly is rotated in advance, and the fixing assembly is used for fixing the rotated rotating assembly, so that when a tape needs to be wound, the tape is put into the half-moon shaft, and the fixing effect of the large baffle on the gear is relieved; in this way, the pre-stored rotating force of the rotating assembly can be released, the two half-moon shafts can wind the winding tape, the winding tape can be automatically wound, and the tensioning device can be used for buffering the winding force in advance.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioners, in particular to an automatic winding tensioner. Background Art

[0002] At present, tensioners are used to fix goods during transportation, movement, shipment or storage. After being locked, they will not fall off, are safe and reliable, lightweight, easy to operate, and protect objects from damage. They are equipment for reinforcing steel formwork and compressing wooden boards, and mainly play a tensioning role.

[0003] A Chinese utility model patent with publication number CN213833880U discloses a ratchet-type belt tensioner. Although the above-mentioned prior art can be adjusted accordingly according to the width of the fabric and the height of the winding device, effectively enhancing the functionality and practicality of the device, the tensioner requires the user to continuously open and close the tensioner with both hands during use. The longer the belt, the more times it needs to be opened and closed. In addition, a pile of goods may require multiple tensioners to be secured. Such long-term opening and closing actions will cause arm soreness in the user, affecting work efficiency. Therefore, it is necessary to design a tensioner that can automatically rewind the belt. Utility Model Content

[0004] In order to solve the technical problem that the long-time opening and closing action of the belt tensioner causes soreness in the workers' arms and affects their work efficiency, the utility model provides an automatic winding tensioner.

[0005] The utility model adopts the following technical scheme to achieve: an automatic winding tensioner, including a base, a handle rotatably mounted on the base, a large baffle rotatably mounted with the handle, two semi-lunar shafts with both ends passing through the handle and the base, and gears sleeved on both ends of the two semi-lunar shafts, the large baffle is used in conjunction with the two gears, both sides of the handle are provided with rotating components that allow the two semi-lunar shafts to rotate automatically, and one side of each of the rotating components is provided with a fixing component for fixing adjacent rotating components, the rotating component includes a fixing plate arranged between the two semi-lunar shafts and having a fixing hole, a fixing rod fixedly mounted inside the fixing hole and with both ends passing through adjacent semi-lunar shafts, a connecting plate fixedly mounted on one side of the fixing plate, a torsion spring mounted on one side of the connecting plate and a rotating cover sleeved on the two semi-lunar shafts, one end of the torsion spring is mounted on the inner wall of the rotating cover.

[0006] Through the above technical solution, a large baffle is used to lock the gear in advance, so that the rotating component can be rotated to cache the rotational force, and then the rotating component can be fixed using the fixing component. In this way, when the tape needs to be reeled in, the large baffle is moved to release the fixing effect on the gear, and the rotating component can be automatically rotated with the tape, thereby automatically reeling the tape.

[0007] As a further improvement of the above solution, one side of the two rotating covers is in contact with the surface of the handle, and the fixing plate, the fixing rod, the connecting plate and the torsion spring are all located inside the rotating cover.

[0008] Through the above technical solution, the rotating cover can be rotated to allow the torsion spring to cache the rotational force, so that after the gear is separated from the large baffle, the torsion spring can be rotated, thereby driving the two semi-moon shafts to rotate, and the tape can be rolled up.

[0009] As a further improvement of the above-mentioned solution, a first limiting ring is fixedly sleeved on the outer surface of each rotating cover, a second limiting ring is rotatably sleeved on the outer surface of each first limiting ring and fixedly mounted on the handle, and a limiting groove that is compatible with the first limiting ring is provided on the inner ring surface of each second limiting ring.

[0010] Through the above technical solution, the second limiting ring will limit the first limiting ring to prevent the rotating cover from separating from the handle.

[0011] As a further improvement of the above solution, each torsion spring is provided with a support column fixedly mounted to the connecting plate, and each rotating cover is provided with a limiting sleeve mounted on the adjacent torsion spring and fixedly mounted to the adjacent connecting plate.

[0012] Through the above technical solution, the support column and the limiting sleeve will limit the torsion spring to prevent the torsion spring from excessive deformation.

[0013] As a further improvement of the above-mentioned scheme, the fixing assembly includes a fixing block provided on one side of the second limiting ring and fixedly installed with the handle, a limiting bar rotatably installed on one side of the fixing block, and a limiting plate fixedly installed on one side of the limiting bar, and rubber plates are fixedly installed on both sides of the limiting plate.

[0014] Through the above technical solution, the limiting plate will fix the rotating cover, making it convenient for the semi-lunar axis to automatically rotate to reel in the tape.

[0015] As a further improvement of the above solution, a plurality of limiting grooves are provided on the circumferential surface of each rotating cover.

[0016] Through the above technical solution, the limiting groove cooperates with the limiting plate to fix the rotating cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a large baffle, a gear, a rotating assembly and a fixed assembly, uses the large baffle to fix the gear, then rotates the rotating assembly in advance and uses the fixed assembly to fix the rotated rotating assembly. In this way, when the tape needs to be reeled in, the tape is placed in the semi-moon shaft, and the fixing effect of the large baffle on the gear is released. In this way, the rotational force pre-stored in the rotating assembly is released, and the two semi-moon shafts reel in the tape. This arrangement can not only automatically reel in the tape, but also allow the tensioner to cache the reeling force in advance, thereby improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model having a rotating component;

[0021] Figure 3 This is a schematic structural diagram of the utility model with a cross-section of the rotating assembly;

[0022] Figure 4 For this utility model Figure 1 A magnified view of the structure of part A.

[0023] Description of main symbols:

[0024] 1. Base; 2. Handle; 3. Large baffle; 4. Half-moon shaft; 5. Gear; 601. Fixed plate; 602. Fixed rod; 603. Connecting plate; 604. Torsion spring; 605. Rotating cover; 701. Fixed block; 702. Limiting bar; 703. Limiting plate; 8. First limiting ring; 9. Second limiting ring; 10. Support column; 11. Limiting sleeve; 12. Rubber plate. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Please combine Figures 1-4, an automatic winding tensioner of this embodiment includes a base 1, a handle 2 rotatably mounted on the base 1, a large baffle 3 rotatably mounted with the handle 2, two semi-lunar shafts 4 with both ends passing through the handle 2 and the base 1, and gears 5 sleeved on both ends of the two semi-lunar shafts 4. The large baffle 3 is used in conjunction with the two gears 5. Both sides of the handle 2 are provided with a rotating component that allows the two semi-lunar shafts 4 to rotate automatically. One side of each rotating component is provided with a fixing component for fixing the adjacent rotating components. The rotating component includes a fixing plate 601 arranged between the two semi-lunar shafts 4 and having a fixing hole, a fixing rod 602 fixedly installed in the fixing hole and passing through the adjacent semi-lunar shafts 4 at both ends, and a connecting rod fixedly installed on one side of the fixing plate 601. The connecting plate 603, the torsion spring 604 installed on one side of the connecting plate 603 and the rotating cover 605 sleeved on the two semi-moon shafts 4, one end of the torsion spring 604 is installed on the inner wall of the rotating cover 605, and one side of the two rotating covers 605 are in contact with the surface of the handle 2. The fixed plate 601, the fixed rod 602, the connecting plate 603 and the torsion spring 604 are all located inside the rotating cover 605. Use the large baffle 3 to clamp the gear 5 in advance, so that the rotating component can be rotated to cache the rotational force, and then use the fixing component to fix the rotating component. In this way, when the tape needs to be reeled in, the large baffle 3 is moved to release the fixing effect on the gear 5, so that the rotating component can automatically rotate with the tape, thereby automatically reeling the tape.

[0027] Combine Figure 1 、 Figure 3 and Figure 4 The outer surface of each rotating cover 605 is fixedly sleeved with a first limiting ring 8, the outer surface of each first limiting ring 8 is rotatably sleeved with a second limiting ring 9 fixedly mounted on the handle 2, and the inner ring surface of each second limiting ring 9 is provided with a limiting groove adapted to the first limiting ring 8. The interior of each torsion spring 604 is provided with a support column 10 fixedly mounted on the connecting plate 603, and the interior of each rotating cover 605 is provided with a limiting sleeve 11 sleeved on the adjacent torsion spring 604 and fixedly mounted on the adjacent connecting plate 603. The second limiting ring 9 will limit the first limiting ring 8 to prevent the rotating cover 605 from separating from the handle 2, and the support column 10 and the limiting sleeve 11 will limit the torsion spring 604 to prevent the torsion spring 604 from excessive deformation.

[0028] Combine Figure 1 and Figure 4 The fixing component includes a fixing block 701 which is arranged on one side of the second limiting ring 9 and fixedly installed with the handle 2, a limiting bar 702 which is rotatably installed on one side of the fixing block 701, and a limiting plate 703 which is fixedly installed on one side of the limiting bar 702. Rubber plates 12 are fixedly installed on both sides of the limiting plate 703. A plurality of limiting grooves are provided on the circumferential surface of each rotating cover 605. The limiting plate 703 will fix the rotating cover 605, so that the semi-moon shaft 4 can automatically rotate to reel in the tape.

[0029] The implementation principle of an automatic winding tensioner in the embodiment of the present application is as follows: a large baffle 3 is used to clamp the gear 5, so that after the gear 5 is stuck, the two semi-moon shafts 4 cannot rotate. In this way, the two rotating covers 605 are twisted, and the internal torsion spring 604 generates a rotational force. After the rotating cover 605 is rotated to the required number of circles, the limiting plate 703 can be inserted into the limiting groove of the rotating cover 605. In this way, the rotating cover 605 will be fixed, and the internal torsion spring 604 will be restricted from rotating back, thereby storing the rotational force in advance. When the tape is to be wound, the tape can be inserted between the two semi-moon shafts 4, and the fixing effect on the gear 5 can be released by pulling the large baffle 3. In this way, after the rotating cover 605 is fixed, the torsion spring 604 will drive the connecting plate 603 to rotate, so that the fixed plate 601 drives the two semi-moon shafts 4 to rotate to tighten and reel the tape. The rotational force of the torsion spring 604 may not be able to complete the final tightening and reeling of the tape, but the staff can tighten it by hand, and only reel the tensioner by hand at the end, which will not cause arm soreness due to too many opening and closing times of the tensioner. In this way, the rotational force of multiple tensioners can be stored in advance. Pre-storing multiple tensioners in advance can improve work efficiency. This setting can not only automatically reel the tape, but also cache the reeling force of the tensioner in advance, thereby improving the work efficiency of the staff.

[0030] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An automatic winding tensioner, comprising a base (1), a handle (2) rotatably mounted on the base (1), a large baffle (3) rotatably mounted with the handle (2), two half-moon shafts (4) both ends of which pass through the handle (2) and the base (1), and gears (5) sleeved on both ends of the two half-moon shafts (4), wherein the large baffle (3) is used in conjunction with the two gears (5), and is characterized in that: Both sides of the handle (2) are provided with a rotating assembly for automatically rotating the two semi-lunar shafts (4), and one side of each rotating assembly is provided with a fixing assembly for fixing the adjacent rotating assembly, the rotating assembly comprising a fixing plate (601) arranged between the two semi-lunar shafts (4) and having a fixing hole, a fixing rod (602) fixedly installed inside the fixing hole and having both ends passing through the adjacent semi-lunar shafts (4), a connecting plate (603) fixedly installed on one side of the fixing plate (601), a torsion spring (604) installed on one side of the connecting plate (603), and a rotating cover (605) sleeved on the two semi-lunar shafts (4), one end of the torsion spring (604) being installed on the inner wall of the rotating cover (605).

2. The automatic winding tensioner according to claim 1, characterized in that: One side of the two rotating covers (605) is in contact with the surface of the handle (2), and the fixing plate (601), the fixing rod (602), the connecting plate (603) and the torsion spring (604) are all located inside the rotating cover (605).

3. The automatic winding tensioner according to claim 1, characterized in that: The outer surface of each rotating cover (605) is fixedly sleeved with a first limiting ring (8), the outer surface of each first limiting ring (8) is rotatably sleeved with a second limiting ring (9) fixedly mounted on the handle (2), and the inner ring surface of each second limiting ring (9) is provided with a limiting groove adapted to the first limiting ring (8).

4. The automatic winding tensioner according to claim 1, characterized in that: Each torsion spring (604) is provided with a support column (10) fixedly mounted on the connecting plate (603) inside, and each rotating cover (605) is provided with a limiting sleeve (11) sleeved on the adjacent torsion spring (604) and fixedly mounted on the adjacent connecting plate (603) inside.

5. The automatic winding tensioner according to claim 3, characterized in that: The fixing assembly comprises a fixing block (701) provided on one side of the second limiting ring (9) and fixedly mounted to the handle (2), a limiting bar (702) rotatably mounted on one side of the fixing block (701), and a limiting plate (703) fixedly mounted on one side of the limiting bar (702), wherein rubber plates (12) are fixedly mounted on both sides of the limiting plate (703).

6. The automatic winding tensioner according to claim 1, characterized in that: A plurality of limiting grooves are provided on the circumferential surface of each rotating cover (605).

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