Adjustable wrench

Abstract

The utility model discloses an adjustable wrench which comprises a rectangular frame, and an adjusting structure is installed on the rectangular frame. The utility model relates to the technical field of wrenches, one plane of a bolt or a nut is attached to one side wall face, symmetrical to a clamping strip, of a rectangular frame, then a threaded rod is rotated so that the threaded rod can rotate on the rectangular frame and a fixed sleeve, meanwhile, an extension column rotates on the clamping strip, and the clamping strip moves in the rectangular frame. The clamping strip and the rectangular frame jointly clamp the two opposite planes of the bolt or the nut, clamping stability is guaranteed, the bolt or the nut, the rectangular frame and the clamping strip are prevented from being damaged, a user holds the extension sleeve and the rotating device by hand to disassemble and assemble the bolt or the nut, and when the distance between the hand of the user and the clamping strip needs to be adjusted, the clamping strip and the rectangular frame can be conveniently adjusted. The extension sleeve at one end of the fixed sleeve is rotated, and the appearance length of the fixed sleeve and the extension sleeve is adjusted to facilitate use.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to an adjustable wrench. Background Art

[0002] A wrench is a commonly used installation and disassembly tool, and is a hand tool that uses the principle of leverage to twist bolts, screws, nuts, and other threaded fasteners for opening or hole-forming fasteners of bolts or nuts. An adjustable wrench with announcement number CN210025075U includes a fixed part, a movable part, and an adjusting part, wherein the fixed part is provided with at least a first connection position and a first clamping position; the movable part is provided with at least a screw rod and a second clamping position; the adjusting part is provided with at least a through threaded hole and a second connection position; the first connection position is rotationally matched with the second connection position, the screw rod is inserted into the threaded hole, and the first clamping position corresponds to the second clamping position. However, in the patent document, the gap between the first clamping position and the second clamping position forms a rhombus structure, while the bolt and the nut are usually a regular hexagonal structure. Therefore, no matter how large the size of the bolt or nut is, the contact mode is line contact, and the contact area is small, which is easy to cause damage to the first clamping position, the second clamping position, the bolt or the nut, and inconvenience in use.

[0003] There may already be technical means to solve the above problems in the prior art, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0004] In order to solve the problems raised in the background technology, the utility model is implemented through the following technical solutions: an adjustable wrench, comprising a rectangular frame, on which an adjustment structure is installed;

[0005] The adjustment structure includes a threaded rod, which is movably inserted into the rectangular frame through a thread, an extension column is installed on the threaded rod at one end located inside the rectangular frame, and a clamp is movably mounted on one end of the extension column, and the clamp is arranged parallel to two corresponding walls of the rectangular frame, a fixed sleeve is installed on the rectangular frame, and one end of the threaded rod located outside the rectangular frame is movably inserted into the fixed sleeve, and an extension sleeve is movably mounted on one end of the fixed sleeve.

[0006] Preferably, two guide grooves are provided on the inner opposite wall surfaces of the rectangular frame, and the two ends of the clamping strip are movably fitted on the two guide grooves.

[0007] Preferably, a knob is fixedly mounted on the extension column.

[0008] Preferably, the fixing sleeve is connected to the threaded rod via threads.

[0009] Preferably, the fixing sleeve and the extension sleeve are connected via threads.

[0010] Preferably, one end of the extension sleeve is sleeved with a non-slip rubber sleeve.

[0011] Beneficial Effects

[0012] The utility model provides an adjustable spanner, which has the following beneficial effects compared with the prior art: a plane of a bolt or a nut is fitted on a side wall surface of a rectangular frame and symmetrical to a clamping strip, and then a threaded rod is rotated to rotate the threaded rod on the rectangular frame and a fixed sleeve, and at the same time an extension column is rotated on the clamping strip, and the clamping strip moves in the rectangular frame, and the clamping strip and the rectangular frame jointly clamp two opposite planes of the bolt or the nut, thereby ensuring the stability of clamping and avoiding damage to the bolt or the nut, the rectangular frame and the clamping strip. A user holds the extension sleeve and rotates the device to disassemble and assemble the bolt or the nut, and when it is necessary to adjust the distance between the user's hand and the clamping strip, the extension sleeve at one end of the fixed sleeve is rotated to adjust the appearance length size of the fixed sleeve and the extension sleeve, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional structural schematic diagram of an adjustable spanner.

[0014] Figure 2 The utility model is a schematic diagram of the exploded structure of an adjustable wrench.

[0015] Figure 3 The utility model is a schematic diagram of a side sectional structure of an adjustable spanner.

[0016] In the figure: 1. rectangular frame, 2. threaded rod, 3. extension column, 4. clamping strip, 5. fixing sleeve, 6. extension sleeve, 7. guide groove, 8. knob, 9. anti-slip rubber sleeve. DETAILED DESCRIPTION

[0017] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0018] Example: See Figure 1-3 , an adjustable spanner, comprising a rectangular frame 1, on which an adjustment structure is mounted;

[0019] Specifically, the adjustment structure includes a threaded rod 2, which is movably inserted into the rectangular frame 1 through a thread, an extension column 3 is installed on the threaded rod 2 and one end located inside the rectangular frame 1, and a clamping strip 4 is movably sleeved on one end of the extension column 3, and the clamping strip 4 is arranged parallel to two wall surfaces corresponding to the rectangular frame 1, and a fixed sleeve 5 is installed on the rectangular frame 1, and one end of the threaded rod 2 and located outside the rectangular frame 1 is movably inserted into the fixed sleeve 5, and an extension sleeve 6 is movably sleeved on one end of the fixed sleeve 5;

[0020] It should be noted that a plane of the bolt or nut is attached to a side wall of the rectangular frame 1 and symmetrical to the clamping strip 4, and then the threaded rod 2 is rotated to rotate the threaded rod 2 on the rectangular frame 1 and the fixed sleeve 5, and at the same time the extension column 3 is rotated on the clamping strip 4, and the clamping strip 4 moves in the rectangular frame 1, and the clamping strip 4 and the rectangular frame 1 jointly clamp the two opposite planes of the bolt or nut, thereby ensuring the stability of the clamping and avoiding damage to the bolt or nut, the rectangular frame 1 and the clamping strip 4. The user holds the extension sleeve 6 and rotates the device to disassemble and assemble the bolt or nut. When it is necessary to adjust the distance between the user's hand and the clamping strip 4, the extension sleeve 6 at one end of the fixed sleeve 5 is rotated to adjust the appearance length of the fixed sleeve 5 and the extension sleeve 6 for easy use;

[0021] As a preferred embodiment, further, two guide grooves 7 are provided on the inner opposite wall surface of the rectangular frame 1, and the two ends of the clamping strip 4 are movably fitted on the two guide grooves 7. The two guide grooves 7 are used to prevent the clamping strip 4 from tilting, and play a role in limiting and guiding the clamping strip 4;

[0022] As a preferred embodiment, further, a knob 8 is fixedly mounted on the extension column 3 to facilitate the user to rotate the threaded rod 2;

[0023] As a preferred embodiment, further, the fixing sleeve 5 is connected to the threaded rod 2 by threads;

[0024] As a preference, further, the fixed sleeve 5 and the extension sleeve 6 are connected via threads;

[0025] Preferably, further, one end of the extension sleeve 6 is sleeved with an anti-skid rubber sleeve 9 to increase the friction between the user's hand and the extension sleeve 6 .

[0026] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable spanner, comprising a rectangular frame (1), characterized in that: An adjustment structure is installed on the rectangular frame (1); The adjustment structure comprises a threaded rod (2), wherein the threaded rod (2) is movably inserted into a rectangular frame (1) through a thread, an extension column (3) is installed on one end of the threaded rod (2) and located inside the rectangular frame (1), a clamping strip (4) is movably sleeved on one end of the extension column (3), the clamping strip (4) and two corresponding wall surfaces of the rectangular frame (1) are arranged parallel to each other, a fixing sleeve (5) is installed on the rectangular frame (1), one end of the threaded rod (2) and located outside the rectangular frame (1) is movably inserted into the fixing sleeve (5), and an extension sleeve (6) is movably sleeved on one end of the fixing sleeve (5).

2. An adjustable wrench according to claim 1, characterized in that: Two guide grooves (7) are provided on the inner opposite wall surfaces of the rectangular frame (1), and the two ends of the clamping strip (4) are movably fitted on the two guide grooves (7).

3. The adjustable wrench according to claim 1, characterized in that: A rotating knob (8) is fixedly mounted on the extension column (3).

4. The adjustable wrench according to claim 1, characterized in that: The fixing sleeve (5) is connected to the threaded rod (2) via threads.

5. The adjustable wrench according to claim 1, characterized in that: The fixed sleeve (5) and the extension sleeve (6) are connected via threads.

6. The adjustable wrench according to claim 1, characterized in that: One end of the extension sleeve (6) is sleeved with an anti-slip rubber sleeve (9).

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