Size-adjustable double offset ring spanner

Abstract

The size-adjustable box spanner comprises a handle, the left side of the handle is fixedly connected with a garland block, the right side of the handle is movably connected with a hand crank, the left side of the hand crank is fixedly connected with a threaded rod, and the left side of the threaded rod penetrates into an inner cavity of the handle and is in threaded connection with a threaded sleeve. A threaded rod is conveniently driven to rotate through a hand crank, when threads on the surface of the threaded rod are in threaded connection with threads in an inner cavity of a threaded sleeve, the threaded rod rotates to drive the threaded sleeve to move, the threaded sleeve moves to drive a sliding plate to move, and a push rod is pushed to move through the sliding plate; the limiting plate is pushed to move through the pushing rod, the limiting plate is attached to the surface of a to-be-disassembled bolt through movement, the bolt can be conveniently locked, fixed, disassembled and taken down, the wrench can be suitable for bolts of different models, and therefore the use efficiency of the wrench is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box spanners, in particular to a box spanner with adjustable size. Background Art

[0002] In our lives, screws are used in many places to fasten one object to another. As a tool for tightening and removing screws, wrenches have been widely promoted and recognized.

[0003] However, when using the existing box wrench, the left hand usually pushes the connection between the box wrench and the bolt to keep the box wrench and the bolt fully matched to prevent slipping, and the right hand holds the other end of the box wrench and applies force to remove the bolt to complete the disassembly work. However, in actual use, since the caliber of the box wrench is fixed, but the sizes of the disassembled bolts are different, when the caliber of the box wrench is larger than the size of the bolt to be disassembled, the bolt cannot be disassembled, which brings trouble to the staff. Therefore, we propose a box wrench with adjustable size to solve the above problem. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a size-adjustable box wrench, which achieves the size-adjustable function.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a size-adjustable plum blossom wrench, comprising a handle, a rosette block fixedly connected to the left side of the handle, a hand crank movably connected to the right side of the handle, a threaded rod fixedly connected to the left side of the hand crank, the left side of the threaded rod passes through the inner cavity of the handle and is threadedly connected to a threaded sleeve, both sides of the threaded sleeve are fixedly connected to sliding plates, the left side of the sliding plate is fixedly connected to a push rod, and the left side of the push rod passes through the inner cavity of the rosette block and is fixedly connected to a limiting plate.

[0008] As a preferred solution, a second limiting hole is opened on the left side of the bottom of the handle inner cavity, and a first limiting hole is opened on the left side of the push rod surface, and the bottom of the first limiting hole is symmetrical to the top of the second limiting hole.

[0009] Through the above technical solution, the first limiting hole and the second limiting hole are used to facilitate the insertion of the pin rod, and the first limiting hole is conveniently locked and limited, avoiding the pushing rod from shaking due to the twisting force of the handle, thereby improving the stability of the wrench and solving the troubles of the staff.

[0010] As a preferred solution, sliding grooves are provided on both sides of the inner cavity of the handle, and the surface of the sliding plate is slidably connected to the inner cavity of the sliding grooves.

[0011] Through the above technical solution, the sliding plate is easily limited by the sliding groove, thereby improving the stability of the threaded sleeve movement.

[0012] As a preferred solution, a bearing is fixedly connected to the left side of the inner cavity of the handle, and the left side of the threaded rod is rotatably connected to the inner cavity of the bearing.

[0013] With the above technical solution, the rotation stability of the threaded rod is improved through the bearing.

[0014] As a preferred solution, the surface of the handle is provided with a rubber cover, and the surface of the rubber cover is provided with anti-slip stripes.

[0015] Through the above technical solution, the anti-slip stripes can play an anti-slip role.

[0016] As a preferred solution, a pin is movably connected to the left side of the handle surface, and the surface of the pin fits into the inner cavity of the first limiting hole and the second limiting hole.

[0017] With the above technical solution, by setting the connection relationship between the pin rod and the first limiting hole and the second limiting hole, it is convenient to limit and fix the push rod.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a size-adjustable box wrench, which has the following beneficial effects.

[0020] 1. The utility model uses a hand crank to drive the threaded rod to rotate. Since the threads on the surface of the threaded rod and the threads in the inner cavity of the threaded sleeve are threadedly connected, when the threaded rod rotates, the threaded sleeve is driven to move, and the movement of the threaded sleeve drives the sliding plate to move, and the sliding plate pushes the push rod to move, and the push rod pushes the limit plate to move, and the movement of the limit plate fits the surface of the bolt to be removed, which is convenient for locking and fixing the bolt and convenient for disassembly and removal. It can be applied to bolts of different types, thereby improving the use efficiency of the wrench, and also improving the disassembly efficiency of the staff, solving the trouble of the staff.

[0021] 2. The utility model facilitates the insertion of the pin rod through the first limiting hole and the second limiting hole, and facilitates the locking and limiting of the first limiting hole, avoiding the shaking of the push rod due to the twisting force of the handle, thereby improving the stability of the wrench and solving the troubles of the staff. The sliding groove facilitates the limiting of the sliding plate and improves the stability of the movement of the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a cross-sectional view of the handle structure of the utility model;

[0024] Figure 3 This is a rear view of the handle structure of the utility model.

[0025] In the figure: 1. Handle; 2. Threaded rod; 3. Hand crank; 4. Wreath block; 5. Limit plate; 6. Pin rod; 7. Rubber sleeve; 8. First limit hole; 9. Slide groove; 10. Push rod; 11. Sliding plate; 12. Threaded sleeve; 13. Second limit hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-3 The utility model discloses a size-adjustable plum blossom wrench, comprising a handle 1, a rosette block 4 being fixedly connected to the left side of the handle 1, a hand crank 3 being movably connected to the right side of the handle 1, a threaded rod 2 being fixedly connected to the left side of the hand crank 3, the left side of the threaded rod 2 passing through the inner cavity of the handle 1 and being threadedly connected to a threaded sleeve 12, both sides of the threaded sleeve 12 are fixedly connected to a sliding plate 11, a push rod 10 being fixedly connected to the left side of the sliding plate 11, and a limit plate 5 being fixedly connected to the left side of the push rod 10 passing through the inner cavity of the rosette block 4.

[0028] Through the above technical solution, the hand crank 3 is used to easily drive the threaded rod 2 to rotate. Since the threads on the surface of the threaded rod 2 and the threads in the inner cavity of the threaded sleeve 12 are threadedly connected, when the threaded rod 2 rotates, the threaded sleeve 12 is driven to move, and the movement of the threaded sleeve 12 drives the sliding plate 11 to move, and the sliding plate 11 pushes the push rod 10 to move, and the push rod 10 pushes the limit plate 5 to move, and the movement of the limit plate 5 fits the surface of the bolt to be removed, which is convenient for locking and fixing the bolt and facilitating its disassembly and removal. It can be applied to bolts of different types, thereby improving the use efficiency of the wrench, and also improving the disassembly efficiency of the staff, solving the trouble of the staff.

[0029] Specifically, a second limiting hole 13 is opened on the left side of the bottom of the inner cavity of the handle 1, and a first limiting hole 8 is opened on the left side of the surface of the push rod 10. The bottom of the first limiting hole 8 is symmetrical with the top of the second limiting hole 13. Slide grooves 9 are opened on both sides of the inner cavity of the handle 1. The surface of the sliding plate 11 is slidably connected to the inner cavity of the slide groove 9. The left side of the inner cavity of the handle 1 is fixedly connected to a bearing, and the left side of the threaded rod 2 is rotatably connected to the inner cavity of the bearing. The surface of the handle 1 is provided with a rubber sleeve 7, and the surface of the rubber sleeve 7 is provided with anti-slip stripes. The left side of the surface of the handle 1 is movably connected with a pin rod 6, and the surface of the pin rod 6 fits into the inner cavity of the first limiting hole 8 and the second limiting hole 13. The pin rod 6 is conveniently inserted through the first limiting hole 8 and the second limiting hole 13, and the first limiting hole 8 is conveniently locked and limited, avoiding the pushing rod 10 from shaking due to the twisting force of the handle 1, thereby improving the stability of the wrench and solving the trouble of the staff. Through the slide groove 9, the sliding plate 11 is conveniently limited, and the stability of the movement of the threaded sleeve 12 is improved.

[0030] The working principle of the present utility model is as follows: first, the user puts the rosette block 4 on the surface of the bolt to be removed. When the size of the bolt is smaller than the diameter of the rosette block 4, the user takes out the pin rod 6 from the inner cavity of the first limiting hole 8 and the second limiting hole 13, and then holds the hand crank 3 and rotates it forward. The hand crank 3 is used to easily drive the threaded rod 2 to rotate forward. Since the threads on the surface of the threaded rod 2 and the threads in the inner cavity of the threaded sleeve 12 are threadedly connected, when the threaded rod 2 rotates forward, the threaded sleeve 12 is driven to move to the left, and the movement of the threaded sleeve 12 drives the sliding plate 11 to move, and the sliding plate 11 pushes the push rod 10 to move, and the push rod 10 pushes the limiting plate 5 moves, and the limiting plate 5 moves to fit the surface of the bolt to be removed. Secondly, the corresponding surface of the bolt to be removed and the fitting surface of the limiting plate 5 fits the inner wall of the garland block 4, which is convenient for locking and fixing the bolt and convenient for disassembly and removal. It can be applied to bolts of different types, thereby improving the use efficiency of the wrench, and also improving the disassembly efficiency of the staff, solving the trouble of the staff. When the limiting plate 5 fits the surface of the bolt to be removed, the user reinserts the pin rod 6 into the inner cavity of the first limiting hole 8 and the second limiting hole 13, then holds the handle 1, and holds the handle 1 hard to rotate to remove the bolt.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A size-adjustable spanner, comprising a handle (1), characterized in that: The left side of the handle (1) is fixedly connected to a garland block (4), the right side of the handle (1) is movably connected to a hand crank (3), the left side of the hand crank (3) is fixedly connected to a threaded rod (2), the left side of the threaded rod (2) passes through the inner cavity of the handle (1) and is threadedly connected to a threaded sleeve (12), both sides of the threaded sleeve (12) are fixedly connected to a sliding plate (11), the left side of the sliding plate (11) is fixedly connected to a push rod (10), and the left side of the push rod (10) passes through the inner cavity of the garland block (4) and is fixedly connected to a limiting plate (5).

2. The size-adjustable box wrench according to claim 1, characterized in that: A second limiting hole (13) is provided on the left side of the bottom of the inner cavity of the handle (1), and a first limiting hole (8) is provided on the left side of the surface of the push rod (10), wherein the bottom of the first limiting hole (8) is symmetrical to the top of the second limiting hole (13).

3. The size-adjustable box wrench according to claim 1, characterized in that: Slide grooves (9) are provided on both sides of the inner cavity of the handle (1), and the surface of the sliding plate (11) is slidably connected to the inner cavity of the slide grooves (9).

4. The size-adjustable box wrench according to claim 1, characterized in that: The left side of the inner cavity of the handle (1) is fixedly connected to a bearing, and the left side of the threaded rod (2) is rotatably connected to the inner cavity of the bearing.

5. The size-adjustable box wrench according to claim 1, characterized in that: The surface of the handle (1) is covered with a rubber sleeve (7), and the surface of the rubber sleeve (7) is provided with anti-slip stripes.

6. The size-adjustable box wrench according to claim 1, characterized in that: A pin rod (6) is movably connected to the left side of the handle (1) surface, and the surface of the pin rod (6) fits into the inner cavity of the first limiting hole (8) and the second limiting hole (13).

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