Ratchet tensioner

Abstract

The utility model relates to the technical field of tensioners, and discloses a ratchet tensioner which comprises a work piece, connecting rods are installed on the two sides of the work piece, hook rings are installed on the sides, away from the work piece, of the connecting rods, and lifting hooks are installed on the sides, away from the connecting rods, of the hook rings. The adjusting mechanism is located in the workpiece and used for driving the two connecting rods to rotate; and the telescopic mechanism is located at the bottom of the workpiece and used for conveniently adjusting the position of the adjusting mechanism, and the telescopic mechanism comprises a moving mechanism, a limiting mechanism and an anti-skid mechanism. Through cooperation of the threaded rod and the nut, the nut is held to rotate reversely, the nut can be separated from the outer ring of the threaded rod, then the threaded rod is held to rotate reversely, the threaded rod can be separated from the interior of the threaded groove, and the handle can contract or extend when not limited by the threaded rod and can be adjusted to the proper length. Therefore, the use requirements of different workers are met, and meanwhile the practicability of the device is improved.

Description

Technical Field

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

[0002] A ratchet tensioner is a mechanical device used to adjust and maintain the tension of a transmission system (such as belt drive, chain drive, etc.) or rigging (such as ropes, wire ropes, etc.). They usually consist of a housing, ratchet mechanism and handle.

[0003] When locking an object with an existing ratchet tensioner, a worker needs to hold the handle and turn it to tighten the object or rope. Different workers have different requirements for the length of the handle, but the handle length of the ratchet tensioner is fixed, which will affect the normal use of the worker and reduce the practicality. Based on this, the utility model designs a ratchet tensioner to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a ratchet tensioner, which solves the problem of fixed handle length in the background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A ratchet tensioner, comprising:

[0007] A working piece, connecting rods are installed on both sides of the working piece, a hook ring is installed on the side of the connecting rod away from the working piece, and a hook is installed on the side of the hook ring away from the connecting rod; an adjusting mechanism, the adjusting mechanism is located inside the working piece and is used to drive the two connecting rods to rotate; a telescopic mechanism, the telescopic mechanism is located at the bottom of the working piece and is used to facilitate the adjustment of the position of the adjusting mechanism, the telescopic mechanism includes a moving mechanism, a limiting mechanism and an anti-slip mechanism, the moving mechanism is located between the adjusting mechanism and the anti-slip mechanism and is used to adjust the position of the adjusting mechanism, the limiting mechanism is located inside the moving mechanism and is used to limit the moving mechanism, and the anti-slip mechanism is located at the bottom of the moving mechanism and is used to prevent slipping during work.

[0008] Preferably, a protective mechanism for protecting the connecting rods is installed on the side of the two connecting rods away from the workpiece, and the protective mechanism includes a protective sleeve installed on the outer wall of the connecting rod, the protective sleeve is located on the outer ring of the connecting rod, and locking mechanisms for locking the protective sleeves are provided on both sides of the protective sleeves.

[0009] Preferably, the moving mechanism comprises a fixing rod and a handle, a cavity is provided inside the fixing rod, and the handle is installed inside the cavity.

[0010] Preferably, the limiting mechanism includes a threaded groove opened in the inner cavity of the fixing rod and the handle, a threaded rod is threadedly connected in the inner cavity of the threaded groove, a nut is threadedly connected to the outer ring of the threaded rod, and the threaded groove is opened with multiple groups of linear distributions.

[0011] Preferably, the anti-slip mechanism comprises an anti-slip seat fixedly connected to the bottom of the handle, and the outer wall of the anti-slip seat is provided with anti-slip patterns, and the anti-slip patterns are arranged in a plurality of groups of circular array distributions.

[0012] Preferably, the adjustment mechanism includes a fixed frame installed on the top of the fixed rod, a spring is installed in the inner cavity of the fixed frame, a ball is installed on the top of the spring, a pawl is installed on the top of the ball, connecting plates are installed on both sides of the pawl, and a ratchet is installed in the inner cavity of the connecting plate.

[0013] Preferably, the locking mechanism comprises a locking ring installed on the outer ring of the connecting rod, a locking block is installed in the inner cavity of the locking ring, a locking rod is threadedly connected in the inner cavity of the locking ring, and the locking rod and the locking block are rotatably connected via a bearing.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] 1. The utility model cooperates with the threaded rod and the nut. The nut is held and rotated in the opposite direction to make the nut detach from the outer ring of the threaded rod. The threaded rod is then held and rotated in the opposite direction to make the threaded rod detach from the inside of the thread groove. The handle can be retracted or extended and adjusted to a suitable length when there is no restriction from the threaded rod, thereby meeting the usage needs of different staff members and improving the practicality of the device.

[0016] 2. The utility model cooperates with the locking rod and the locking block. Since the locking rod and the locking block are rotatably connected through a bearing, the locking block will rise and fall with the rotation of the locking rod. When the locking block descends to fit with the connecting rod, the protective sleeve can protect the connecting rod, thereby preventing the extended part of the connecting rod from directly contacting water, causing large-scale rust and damage due to water contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a side view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0020] Figure 4 for Figure 2 Enlarged view of point A.

[0021] Among them: 1. Connecting rod; 2. Hook; 3. Hook; 4. Protective cover; 5. Fixed rod; 6. Handle; 7. Threaded groove; 8. Threaded rod; 9. Nut; 10. Anti-slip seat; 11. Anti-slip pattern; 12. Fixed frame; 13. Spring; 14. Ball; 15. Paw; 16. Connecting plate; 17. Ratchet; 18. Locking ring; 19. Locking block; 20. Locking rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please refer to Figure 1-Figure 3 , a working piece, connecting rods 1 are installed on both sides of the working piece, a hook ring 2 is installed on the side of the connecting rod 1 away from the working piece, and a hook 3 is installed on the side of the hook ring 2 away from the connecting rod 1; an adjusting mechanism, the adjusting mechanism is located inside the working piece and is used to drive the two connecting rods 1 to rotate; a telescopic mechanism, the telescopic mechanism is located at the bottom of the working piece and is used to facilitate the adjustment of the position of the adjusting mechanism, the telescopic mechanism includes a moving mechanism, a limiting mechanism and an anti-slip mechanism, the moving mechanism is located between the adjusting mechanism and the anti-slip mechanism and is used to adjust the position of the adjusting mechanism, the limiting mechanism is located inside the moving mechanism and is used to limit the moving mechanism, and the anti-slip mechanism is located at the bottom of the moving mechanism and is used to prevent slipping during work.

[0024] A protective mechanism for protecting the two connecting rods 1 is installed on the side away from the workpiece, and the protective mechanism includes a protective sleeve 4 installed on the outer wall of the connecting rod 1. The protective sleeve 4 is located on the outer ring of the connecting rod 1, and locking mechanisms for locking the protective sleeve 4 are arranged on both sides of the protective sleeve 4. The moving mechanism includes a fixed rod 5 and a handle 6. A cavity is opened inside the fixed rod 5, and a handle 6 is installed inside the cavity.

[0025] In the embodiment of the utility model, since the locking rod 20 and the locking block 19 are rotatably connected via a bearing, the locking block 19 will rise and fall with the rotation of the locking rod 20. When the locking block 19 descends to fit with the connecting rod 1, the protective sleeve 4 can protect the connecting rod 1.

[0026] Please refer to Figure 1-Figure 4The limiting mechanism includes a threaded groove 7 provided in the inner cavity of the fixing rod 5 and the handle 6, a threaded rod 8 is threadedly connected in the inner cavity of the threaded groove 7, a nut 9 is threadedly connected to the outer ring of the threaded rod 8, and the threaded groove 7 is provided with multiple groups of linear distribution. The anti-slip mechanism includes an anti-slip seat 10 fixedly connected to the bottom of the handle 6, and the outer wall of the anti-slip seat 10 is installed with anti-slip patterns 11, and the anti-slip patterns 11 are arranged in multiple groups of circumferential array distribution.

[0027] The adjustment mechanism includes a fixed frame 12 installed on the top of the fixed rod 5, a spring 13 is installed in the inner cavity of the fixed frame 12, a ball 14 is installed on the top of the spring 13, a pawl 15 is installed on the top of the ball 14, connecting plates 16 are installed on both sides of the pawl 15, and a ratchet 17 is installed in the inner cavity of the connecting plate 16. The locking mechanism includes a locking ring 18 installed on the outer ring of the connecting rod 1, a locking block 19 is installed in the inner cavity of the locking ring 18, a locking rod 20 is threadedly connected in the inner cavity of the locking ring 18, and the locking rod 20 is rotatably connected to the locking block 19 through a bearing.

[0028] In the embodiment of the utility model, by holding the nut 9 and rotating it in the opposite direction, the nut 9 can be separated from the outer ring of the threaded rod 8. Secondly, by holding the threaded rod 8 and rotating it in the opposite direction, the threaded rod 8 can be separated from the threaded groove 7. The handle 6 can be contracted or extended when there is no restriction from the threaded rod 8 and the appropriate length can be adjusted.

[0029] When in use, the two hooks 3 are hooked on objects or ropes, and then the operator turns the handle 6. At this time, the pawl 15 is stuck on the teeth of the ratchet 17 under the action of the spring 13 and the ball 14. When the handle 6 is turned, the pawl 15 can drive the ratchet 17 to rotate, thereby driving the connecting rod 1 to rotate, and the connecting rod 1 contracts, thereby achieving the effect of tightening the object or rope.

[0030] When it is necessary to adjust the length of the handle 6, first hold the nut 9 and rotate it in the opposite direction to make the nut 9 disengage from the outer ring of the threaded rod 8. Then hold the threaded rod 8 and rotate it in the opposite direction to disengage the threaded rod 8 from the thread groove 7. The handle 6 can be contracted or extended without the restriction of the threaded rod 8 and adjusted to a suitable length. After the length of the handle 6 is adjusted, hold the threaded rod 8 and align it with the thread groove 7 to rotate it, so that the threaded rod 8 can be rotated to the inside of the thread groove 7. Then, align the nut 9 with the threaded rod 8 and rotate it, which can limit the threaded rod 8 and prevent it from falling off, thereby improving the practicability of the device.

[0031] When it is necessary to protect the extended part of the connecting rod 1, the locking rod 20 can be used in cooperation with the locking block 19. Since the locking rod 20 and the locking block 19 are rotatably connected through the bearing, the locking block 19 will rise and fall with the rotation of the locking rod 20. When the locking block 19 descends to fit with the connecting rod 1, the protective sleeve 4 can protect the connecting rod 1, thereby preventing the extended part of the connecting rod 1 from directly contacting water, causing large-scale rust and damage due to water contact.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ratchet tensioner, characterized in that: include: A working piece, connecting rods (1) are installed on both sides of the working piece, a hook ring (2) is installed on the side of the connecting rod (1) away from the working piece, and a hook (3) is installed on the side of the hook ring (2) away from the connecting rod (1); An adjusting mechanism, the adjusting mechanism being located inside the working piece and being used to drive the two connecting rods (1) to rotate; A telescopic mechanism, which is located at the bottom of the working piece and is used to facilitate adjustment of the position of the adjusting mechanism. The telescopic mechanism includes a moving mechanism, a limiting mechanism and an anti-slip mechanism. The moving mechanism is located between the adjusting mechanism and the anti-slip mechanism and is used to adjust the position of the adjusting mechanism. The limiting mechanism is located inside the moving mechanism and is used to limit the moving mechanism. The anti-slip mechanism is located at the bottom of the moving mechanism and is used to prevent slipping during work.

2. A ratchet tensioner according to claim 1, characterized in that: A protective mechanism for protecting the connecting rods (1) is installed on one side of the two connecting rods (1) away from the workpiece, and the protective mechanism comprises a protective sleeve (4) installed on the outer wall of the connecting rod (1), the protective sleeve (4) is located on the outer ring of the connecting rod (1), and locking mechanisms for locking the protective sleeve (4) are arranged on both sides of the protective sleeve (4).

3. A ratchet tensioner according to claim 1, characterized in that: The moving mechanism comprises a fixed rod (5) and a handle (6); a cavity is provided inside the fixed rod (5), and the handle (6) is installed inside the cavity.

4. A ratchet tensioner according to claim 3, characterized in that: The limiting mechanism comprises a threaded groove (7) provided in the inner cavity of the fixing rod (5) and the handle (6); a threaded rod (8) is threadedly connected in the inner cavity of the threaded groove (7); a nut (9) is threadedly connected to the outer ring of the threaded rod (8); and the threaded groove (7) is provided with a plurality of groups of linear distributions.

5. A ratchet tensioner according to claim 3, characterized in that: The anti-slip mechanism comprises an anti-slip seat (10) fixedly connected to the bottom of the handle (6), the outer wall of the anti-slip seat (10) is provided with anti-slip grooves (11) and the anti-slip grooves (11) are arranged in a plurality of groups of circumferential array distributions.

6. A ratchet tensioner according to claim 3, characterized in that: The adjustment mechanism comprises a fixed frame (12) mounted on the top of the fixed rod (5), a spring (13) is mounted in the inner cavity of the fixed frame (12), a ball (14) is mounted on the top of the spring (13), a pawl (15) is mounted on the top of the ball (14), connecting plates (16) are mounted on both sides of the pawl (15), and a ratchet (17) is mounted in the inner cavity of the connecting plate (16).

7. A ratchet tensioner according to claim 2, characterized in that: The locking mechanism comprises a locking ring (18) mounted on the outer ring of the connecting rod (1), a locking block (19) being mounted in the inner cavity of the locking ring (18), a locking rod (20) being threadedly connected in the inner cavity of the locking ring (18), and the locking rod (20) and the locking block (19) being rotatably connected via a bearing.

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