An adjustable automobile tensioner

Abstract

This utility model relates to the field of tensioner technology, specifically an adjustable automotive tensioner, comprising: a connecting cylinder with a working rod threaded internally, and a ratchet located in the middle of the connecting cylinder; a handle rotatably positioned in the middle of the connecting cylinder, including a connecting member and a telescopic handle, the bottom of the connecting member having a wheel groove, a positioning member rotatably connected within the wheel groove, and two pawls on the positioning member for engaging the ratchet; a locking mechanism located within the telescopic handle for locking the connecting member and the telescopic handle; and a vertical rod fixedly mounted on the top of the connecting member, the vertical rod having several locking grooves. The advantages of this utility model are: through the sliding engagement of the telescopic handle on the vertical rod of the connecting member, the operator can freely adjust the effective length of the handle according to the required torque or operating habits; the locking mechanism facilitates locking or unlocking the position of the telescopic handle on the vertical rod, making operation convenient and requiring no tools.

Description

Technical Field

[0001] This utility model relates to the field of tensioner technology, and in particular to an adjustable automotive tensioner. Background Technology

[0002] Automotive tensioners (also known as ratchet tensioners, tighteners, etc.) are widely used tools in transportation, logistics, rescue and other fields, mainly used to secure goods, vehicles or other large objects.

[0003] Traditional automotive tensioners typically have a fixed handle length, such as the ratchet tensioner proposed in CN2278112Y and CN207242475U. The fixed handle length cannot be optimized and adjusted according to different operating stages (such as the need for quick tightening in the initial relaxed state and the need for high torque in the final tightened state) or the operator's habits, which affects the convenience and efficiency of operation.

[0004] To address this issue, this utility model proposes an adjustable automotive tensioner. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to provide an adjustable car tensioner to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, one embodiment of this utility model provides an adjustable car tensioner, comprising: a connecting cylinder with a working rod threaded inside, and a ratchet located at the center of the connecting cylinder; a handle rotatably located at the center of the connecting cylinder, including a connecting member and a telescopic handle, wherein a wheel groove is formed at the bottom of the connecting member, and a positioning member is rotatably connected in the wheel groove, and the positioning member has two pawls for abutting the ratchet; and a locking mechanism located inside the telescopic handle for locking the connecting member and the telescopic handle.

[0008] Preferably, in any of the above embodiments, a vertical rod is fixedly provided on the top of the connector, and the vertical rod has several locking grooves.

[0009] Preferably, as described in any of the above schemes, the upright has a positioning hole.

[0010] Preferably, in any of the above embodiments, the telescopic handle has a square groove that slides with the upright, the square groove has a connecting groove, and the square groove also has several hemispherical grooves; the telescopic handle has a connecting hole that communicates with the connecting groove, the connecting hole has a guide groove, and both ends of the connecting hole have fan-shaped grooves.

[0011] Preferably, in any of the above embodiments, the locking mechanism includes: a sliding plate that slides into the connecting groove, one end of the sliding plate being fixedly provided with a locking block that engages with the locking groove, and the other end of the sliding plate being fixedly provided with a connecting ring; a cylindrical rod that is rotatably disposed within the connecting ring, the cylindrical rod being movably disposed within the connecting hole, a limiting plate being fixedly provided on the cylindrical rod, the limiting plate being used to engage with the guide groove and the fan-shaped groove, and a pull ring being provided on the cylindrical rod; and a first spring that is sleeved on the cylindrical rod, one end of which is fixedly connected to the sliding plate, and the other end of which is fixedly disposed within the connecting groove.

[0012] Preferably, any of the above solutions further includes an auxiliary positioning mechanism, which is disposed in the positioning hole and is used to assist in positioning the connector and the telescopic handle.

[0013] Preferably, in any of the above embodiments, the auxiliary positioning mechanism includes: a positioning ball, which is slidably disposed in the positioning hole for engaging with the hemispherical groove; and a second spring, one end of which is fixedly disposed in the positioning hole and the other end of which is fixedly connected to the positioning ball.

[0014] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0015] By sliding the telescopic handle on the connecting pole, the operator can freely adjust the effective length of the handle according to the required torque or operating habits. The locking mechanism makes it easy to lock or unlock the position of the telescopic handle on the pole, making operation convenient and requiring no tools.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0019] Figure 2 This is a partial cross-sectional frontal view according to an embodiment of the present utility model;

[0020] Figure 3 According to the embodiments of this utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a partial cross-sectional side view of an embodiment of the present utility model;

[0022] Figure 5According to the embodiments of this utility model Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 This is a schematic diagram of the pole connection according to an embodiment of the present utility model;

[0024] Figure 7 This is a schematic diagram of a ratchet connection according to an embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the working rod connection according to an embodiment of the present utility model;

[0026] Figure 9 This is a first-view schematic diagram of the telescopic handle according to an embodiment of the present utility model;

[0027] Figure 10 According to the embodiments of this utility model Figure 9 Enlarged view of point C in the middle;

[0028] Figure 11 This is a second-view schematic diagram of the telescopic handle according to an embodiment of the present utility model;

[0029] Figure 12 This is a schematic diagram of the locking mechanism according to an embodiment of the present utility model;

[0030] Figure 13 According to the embodiments of this utility model Figure 12 Enlarged diagram of point D in the middle.

[0031] In the diagram: 1. Connecting cylinder, 11. Working rod, 12. Ratchet, 2. Handle, 21. Connecting piece, 2101. Upright rod, 22. Telescopic handle, 23. Positioning piece, 24. Pawl, 3. Locking mechanism, 31. Slide plate, 3101. Locking block, 3102. Connecting ring, 32. Cylindrical rod, 3201. Limiting plate, 3202. Pull ring, 33. First spring, 4. Auxiliary positioning mechanism, 41. Positioning ball, 42. Second spring. Detailed Implementation

[0032] like Figures 1 to 13 As shown, an adjustable automotive tensioner includes:

[0033] The connecting cylinder 1 has a working rod 11 threaded inside, and a ratchet 12 is provided in the middle of the connecting cylinder 1.

[0034] The handle 2 is rotatably located in the middle of the connecting cylinder 1 and includes a connector 21 and a telescopic handle 22. The bottom of the connector 21 is provided with a wheel groove, and a positioning member 23 is rotatably connected in the wheel groove. The positioning member 23 is provided with two pawls 24 for abutting against the ratchet 12.

[0035] The locking mechanism 3 is located inside the telescopic handle 22 and is used to lock the connector 21 and the telescopic handle 22.

[0036] Furthermore, the end of the working rod 11 is integrally formed with a hook ring for mounting a hook;

[0037] The ratchet 12 is disposed in the wheel groove and fixed on the outer wall of the connecting cylinder 1;

[0038] A circular hole is provided on the top wall of the wheel groove. A steel ball slides in the circular hole. A return spring is fixed in the circular hole. The return spring is fixedly connected to the steel ball. The return spring provides force to the steel ball. The steel ball keeps in contact with the positioning member 23.

[0039] The working rod 11 is threadedly connected to the connecting cylinder 1. Specifically, the connecting cylinder 1 has an internal thread, and the working rod 11 has an external thread. The cooperation of the internal and external threads enables the adjustment of the working rod 11. The handle part 2 cooperates with the ratchet 12 to achieve one-way transmission, thereby realizing the adjustment of the working rod 11 (this is the prior art, and will not be described in detail without improvement).

[0040] Furthermore, a vertical rod 2101 is fixedly provided on the top of the connector 21, and a plurality of locking grooves are provided on the vertical rod 2101;

[0041] The upright 2101 is provided with a positioning hole;

[0042] The telescopic handle 22 has a square groove that slides with the upright 2101, a connecting groove is provided in the square groove, and several hemispherical grooves are also provided in the square groove.

[0043] The telescopic handle 22 has a connecting hole that communicates with the connecting groove, a guide groove is provided in the connecting hole, and a fan-shaped groove is provided at both ends of the connecting hole.

[0044] Furthermore, the locking mechanism 3 includes:

[0045] The sliding plate 31 is slidably engaged with the connecting groove. One end of the sliding plate 31 is fixedly provided with a locking block 3101 that engages with the locking groove, and the other end of the sliding plate 31 is fixedly provided with a connecting ring 3102.

[0046] A cylindrical rod 32 is rotatably disposed within a connecting ring 3102. The cylindrical rod 32 is movably disposed within a connecting hole. A limiting plate 3201 is fixedly disposed on the cylindrical rod 32. The limiting plate 3201 is used to cooperate with the guide groove and the fan-shaped groove. A pull ring 3202 is disposed on the cylindrical rod 32.

[0047] The limiting plate 3201 and the sector groove are used to block the cylindrical rod 32 to prevent accidental unlocking when not in the adjustment state;

[0048] The first spring 33 is sleeved on the cylindrical rod 32, with one end fixedly connected to the sliding plate 31 and the other end fixedly installed in the connecting groove.

[0049] Furthermore, it also includes an auxiliary positioning mechanism 4, which is disposed in the positioning hole and is used to assist in positioning between the connector 21 and the telescopic handle 22, including:

[0050] The positioning ball 41 is slidably disposed in the positioning hole to fit the hemispherical groove;

[0051] The second spring 42 has one end fixedly installed in the positioning hole, and the other end fixedly connected to the positioning ball 41.

[0052] During the adjustment process, as the telescopic handle 22 moves, the positioning ball 41 is forced to move into the positioning hole and compresses the second spring 42. As the telescopic handle 22 is adjusted, when the position of the positioning hole corresponds to the position of the other hemispherical groove, the second spring 42 is no longer under force, driving the positioning ball 41 to move into the hemispherical groove and generating a "click" impact sound, which plays an auxiliary role in the adjustment and makes it easier to determine the position of the locking block 3101 and the locking groove.

[0053] An adjustable car tensioner works on the following principle:

[0054] When adjusting handle 2:

[0055] First, by controlling the pull ring 3202 to drive the cylindrical rod 32 to rotate, the cylindrical rod 32 drives the limiting plate 3201 to move accordingly, so that the limiting plate 3201 moves in the sector groove. When the limiting plate 3201 moves to the position corresponding to the guide groove, the cylindrical rod 32 can no longer rotate. At this time, a pulling force is applied to the pull ring 3202, which drives the cylindrical rod 32 to move, and then drives the slide plate 31 and the locking block 3101 on the slide plate 31 to move, so that the locking block 3101 disengages from the locking groove. Then, the cylindrical rod 32 is driven to rotate again, so that the limiting plate 3201 deflects to the other end of the sector groove (no longer corresponding to the guide groove). At this time, the telescopic handle 22 can be adjusted. After the position adjustment is completed, the cylindrical rod 32 is driven to rotate by the pull ring 3202, so that the position of the limiting plate 3201 corresponds to the position of the guide groove again. At this time, under the action of the first spring 33, the slide plate 31 and the locking block 3101 are driven to move into the locking groove to achieve locking. After that, the cylindrical rod 32 is driven to rotate again.

Claims

1. An adjustable automotive tensioner, characterized in that: include: A connecting cylinder with a working rod threaded inside, and a ratchet located in the middle of the connecting cylinder; The handle is rotatably located in the middle of the connecting cylinder and includes a connector and a telescopic handle. The bottom of the connector has a wheel groove, and a positioning element is rotatably connected in the wheel groove. The positioning element has two pawls for abutting against the ratchet. A locking mechanism, located inside the telescopic handle, is used to lock the connector and the telescopic handle.

2. The adjustable automotive tensioner according to claim 1, characterized in that: The top of the connector is fixedly provided with a vertical rod, and the vertical rod is provided with several locking grooves.

3. An adjustable automotive tensioner according to claim 2, characterized in that: The upright has positioning holes.

4. An adjustable automotive tensioner according to claim 3, characterized in that: The telescopic handle has a square groove that slides with the upright, a connecting groove is formed in the square groove, and several hemispherical grooves are also formed in the square groove. The telescopic handle has a connecting hole that communicates with the connecting groove, the connecting hole has a guide groove, and both ends of the connecting hole have fan-shaped grooves.

5. An adjustable automotive tensioner according to claim 4, characterized in that: The locking mechanism includes: The sliding plate is slidably engaged with the connecting groove. One end of the sliding plate is fixedly provided with a locking block that engages with the locking groove, and the other end of the sliding plate is fixedly provided with a connecting ring. A cylindrical rod is rotatably disposed within a connecting ring, and the cylindrical rod is movably disposed within a connecting hole. A limiting plate is fixedly disposed on the cylindrical rod, and the limiting plate is used to cooperate with a guide groove and a fan-shaped groove. A pull ring is disposed on the cylindrical rod. The first spring is sleeved on the cylindrical rod, with one end fixedly connected to the sliding plate and the other end fixedly installed in the connecting groove.

6. An adjustable automotive tensioner according to claim 4, characterized in that: It also includes an auxiliary positioning mechanism, which is located in the positioning hole and is used to assist in positioning between the connector and the telescopic handle.

7. An adjustable automotive tensioner according to claim 6, characterized in that: The auxiliary positioning mechanism includes: The positioning ball is slidably set inside the positioning hole to fit the hemispherical groove; The second spring has one end fixedly installed in the positioning hole, and the other end fixedly connected to the positioning ball.

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