Multifunctional wrench capable of adjusting distance through internal threads

Abstract

The utility model relates to the field of wrenches, in particular to an internal thread distance-adjusting multifunctional wrench which comprises a main handle, the main handle comprises a grab handle and a wrench head fixedly connected to the upper end of the grab handle, an adjusting groove is formed in the right end of the wrench head in a penetrating mode, a mounting groove is formed in the front end of the wrench head in a penetrating mode, and the mounting groove is communicated with the adjusting groove. An adjusting groove is formed in the right end of the wrench head, an inner screw tube is rotationally connected into the installing groove, a rack is arranged at the right end of the wrench head, the left end of the rack movably penetrates through the adjusting groove and the inner screw tube in sequence, the inner screw tube is meshed with the rack, and an L-shaped installing block is fixedly connected to the right end of the rack. The auxiliary handle is driven to move left and right, the distance between the auxiliary handle and the wrench head is adjusted, the wrench is made to adapt to bolts and other parts of different sizes, when the parts of different sizes are screwed, only one wrench needs to be used, and therefore the practicability and flexibility of the wrench are improved.

Description

Technical Field

[0001] The utility model relates to a wrench, in particular to a multifunctional wrench with internal thread adjustable distance applied in the wrench field. Background Art

[0002] A wrench is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to twist bolts, screws, nuts and other threaded fasteners with openings or holes. Wrenches are usually made of structural steel made of carbon or alloy materials. Wrenches usually have openings or holes for clamping bolts or nuts at one or both ends of the handle. When in use, external force is applied to the handle along the direction of thread rotation to twist the bolt or nut.

[0003] The specification of Chinese patent CN219819549U discloses a hexagonal wrench and a wrench assembly. The utility model covers the outer surface of the wrench with a contoured flexible layer and a reinforced flexible layer. The contoured flexible layer prevents the metal material portion of the wrench from being exposed to the outer surface, which poses risks such as rust. At the same time, a reinforced flexible layer is added on the basis of the contoured flexible layer. The reinforced flexible layer enables the user to hold the wrench and prevents squeezing or falling off during the holding process.

[0004] Since existing bolts, screws and other parts come in a variety of sizes, the above-mentioned wrenches can only be used to tighten bolts of a specific size during use. When tightening bolts and other parts of different sizes, different types of wrenches need to be used, which reduces the practicality and flexibility of the wrench. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing wrenches can only be used to tighten specific bolts when in use and cannot be applied to bolts, screws and other parts of different sizes, thereby reducing the practicality and flexibility of the wrench.

[0006] In order to solve the above problems, the utility model provides a multifunctional wrench with internal thread adjustable distance, comprising a main handle, the main handle comprising a grip and a wrench head fixedly connected to the upper end of the grip, an adjusting groove is bored through the right end of the wrench head, an installation groove is bored through the front end of the wrench head, the installation groove is communicated with the adjusting groove, an internal screw tube is rotatably connected in the installation groove, a rack is provided at the right end of the wrench head, the left end of the rack moves through the adjusting groove and the internal screw tube in turn, the internal screw tube is meshed with the rack, the right end of the rack is fixedly connected with an L-shaped mounting block, the upper end of the mounting block is fixedly connected with a secondary handle, the grip comprises a fixed handle and an adjusting block rotatably connected to the upper end of the fixed handle, the surfaces of the fixed handle and the adjusting block are jointly sleeved with an adjusting sleeve, two sliding grooves are bored through the surface of the fixed handle, a limit block is provided in the slide groove, and the front and rear ends of the limit block are respectively fixedly connected to the front and rear inner walls of the adjusting sleeve.

[0007] In the above-mentioned multifunctional wrench with internal thread adjustable distance, by rotating the internal screw tube, the rack can be moved left and right, thereby driving the auxiliary handle to move left and right, and adjusting the distance between the auxiliary handle and the wrench head to adapt to bolts and other parts of different sizes. When tightening parts of different sizes, only one wrench needs to be used, thereby improving the practicality and flexibility of the wrench.

[0008] As a further improvement of the present application, a cleaning tip is fixedly embedded in the lower end of the handle, and the lower end of the cleaning tip is triangular.

[0009] As a further improvement of the present application, triangular tooth grooves are carved on the corresponding ends of the wrench head and the auxiliary handle. The multiple triangular tooth grooves make the surfaces of the wrench head and the auxiliary handle appear multi-racked, and the racks of the two are engaged with each other.

[0010] As a further improvement of the present application, a plurality of protrusions are fixedly connected to the outer surface of the inner spiral tube, and the plurality of protrusions are distributed in a ring array around the central axis of the inner spiral tube.

[0011] As another improvement of the present application, an arc-shaped finger groove is carved on the left end of the handle, and a plurality of rubber blocks are fixedly connected to the right end of the handle.

[0012] As another improvement of the present application, a damper is provided at the connection point between the fixed handle and the adjustment block, the adjustment sleeve is made of hard material, and the inner wall of the adjustment sleeve and the outer surface of the fixed handle are provided with anti-slip grooves.

[0013] To sum up, in actual application, the user holds the handle and rotates the inner screw, so that the rack engaged with the inner screw moves laterally, driving the mounting block and the auxiliary handle to move left and right. During the movement, the position of the main handle remains unchanged, so that the distance between the auxiliary handle and the wrench head can be adjusted so that the wrench can adapt to bolts and other parts of different sizes. When tightening parts of different sizes, only one wrench is needed, thereby improving the practicality and flexibility of the wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0015] Figure 2 This is a cross-sectional view of the main handle structure of the first embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the main handle structure of the first embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the rack structure of the first embodiment of the present application;

[0018] Figure 5This is a structural front view of the second embodiment of the present application;

[0019] Figure 6 This is a schematic diagram of the handle structure of the second embodiment of the present application;

[0020] Figure 7 This is an exploded view of the handle structure of the second embodiment of the present application;

[0021] Figure 8 This is a cross-sectional view of the handle structure of the second embodiment of the present application;

[0022] Figure 9 This is a rotation diagram of the second embodiment of the present application.

[0023] Description of the numbers in the figure:

[0024] 1 Main handle, 2 Grip, 3 Wrench head, 4 Adjustment slot, 5 Mounting slot, 6 Internal screw, 7 Rack, 8 Secondary handle, 9 Fixed handle, 10 Adjustment block, 11 Adjustment sleeve, 12 Slide, 13 Limit block, 14 Cleaning tip, 15 Mounting block. DETAILED DESCRIPTION

[0025] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0026] The first implementation method:

[0027] Figure 1 、 Figure 2 and Figure 3 The present invention relates to a multifunctional wrench with an internal thread and adjustable pitch, comprising a main handle 1, a grip 2 and a wrench head 3 fixedly connected to the upper end of the grip 2, an adjusting slot 4 is bored through the right end of the wrench head 3, the adjusting slot 4 can facilitate the movement of the rack 7, a mounting slot 5 is bored through the front end of the wrench head 3, the mounting slot 5 is communicated with the adjusting slot 4, an inner screw tube 6 is mounted in the mounting slot 5, a cleaning tip 14 is fixedly embedded at the lower end of the grip 2, the lower end of the cleaning tip 14 is triangular in shape, which is convenient for cleaning the object to be twisted and removing stains on its surface, a plurality of protrusions are fixedly connected to the outer surface of the inner screw tube 6, and the plurality of protrusions are distributed in a ring array around the central axis of the inner screw tube 6, thereby increasing the friction between the inner screw tube 6 and the fingers of the staff, thereby facilitating the staff to rotate the inner screw tube 6, an arc-shaped finger groove is bored through the left end of the grip 2, which matches the fingers of the staff, and a plurality of rubber blocks are fixedly connected to the right end of the grip 2, which is convenient for the staff to hold the main handle 1.

[0028] Figure 2 、 Figure 3 and Figure 4It is shown that: an inner screw tube 6 is rotatably connected in the mounting groove 5, a rack 7 is provided at the right end of the wrench head 3, and the left end of the rack 7 is movable through the adjusting groove 4 and the inner screw tube 6 in turn, and the inner screw tube 6 and the rack 7 are meshed. Rotating the inner screw tube 6 can drive the rack 7 to move laterally, thereby changing the position of the mounting block 15 and the auxiliary handle 8, which is convenient for adjusting the distance between the wrench head 3 and the auxiliary handle 8. The right end of the rack 7 is fixedly connected to an L-shaped mounting block 15, and the upper end of the mounting block 15 is fixedly connected to the auxiliary handle 8. The corresponding ends of the wrench head 3 and the auxiliary handle 8 are both chiseled with triangular grooves. The multiple triangular grooves make the surfaces of the wrench head 3 and the auxiliary handle 8 appear multi-rack-shaped, and the racks of the two are meshed with each other, which can effectively increase the friction between the wrench and the surface of the object to be twisted, making it convenient to twist it out.

[0029] During use, the user holds the handle 2 and rotates the inner screw 6, so that the rack 7 engaged with the inner screw 6 moves laterally, driving the mounting block 15 and the auxiliary handle 8 to move left and right. During the movement, the position of the main handle 1 remains unchanged, so that the distance between the auxiliary handle 8 and the wrench head 3 can be adjusted so that the wrench can adapt to bolts and other parts of different sizes. When tightening parts of different sizes, only one wrench is needed, thereby improving the practicality and flexibility of the wrench.

[0030] The second implementation method:

[0031] Based on the first embodiment, this embodiment adds a fixing handle 9, an adjusting block 10, an adjusting sleeve 11, a sliding groove 12 and a limiting block 13, and the rest of the parts remain the same as the first embodiment.

[0032] Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown: the handle 2 includes a fixed handle 9 and an adjusting block 10 rotatably connected to the upper end of the fixed handle 9. The surfaces of the fixed handle 9 and the adjusting block 10 are jointly sleeved with an adjusting sleeve 11. Two sliding grooves 12 are bored through the surface of the fixed handle 9. A limiting block 13 is provided in the sliding groove 12. The front and rear ends of the limiting block 13 are respectively fixedly connected to the front and rear inner walls of the adjusting sleeve 11. When the adjusting sleeve 11 slides downward, the limiting block 13 also slides downward along the sliding groove 12, thereby exposing the adjusting block 10. Rotating the adjusting block 10 makes the wrench The angle of the head 3 changes to adapt to the narrow space. A damper is provided at the connection between the fixed handle 9 and the adjusting block 10 to increase the resistance between the fixed handle 9 and the adjusting block 10 so that the adjusting block 10 can maintain the angle after rotation. The adjusting sleeve 11 is made of hard material and can limit and fix the fixed handle 9 and the adjusting block 10. The inner wall of the adjusting sleeve 11 and the outer surface of the fixed handle 9 are provided with anti-slip grooves to increase the friction between the adjusting sleeve 11 and the fixed handle 9, so that the adjusting sleeve 11 is not easy to slip.

[0033] When used in a narrow space, the adjusting sleeve 11 can be slid downward to expose the adjusting block 10, and then the adjusting block 10 can be rotated ninety degrees to change the angle between the wrench head 3 and the fixed handle 9, thereby facilitating the use of the wrench in a narrow space and eliminating the need to frequently take out the wrench to change the wrench angle, thereby improving the flexibility of the wrench when used.

[0034] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A multifunctional wrench with internal thread adjustable pitch, comprising a main handle (1), characterized in that: The main handle (1) comprises a grip (2) and a wrench head (3) fixedly connected to the upper end of the grip (2), an adjustment groove (4) is bored through the right end of the wrench head (3), a mounting groove (5) is bored through the front end of the wrench head (3), the mounting groove (5) is communicated with the adjustment groove (4), an inner screw tube (6) is rotatably connected in the mounting groove (5), a rack (7) is provided at the right end of the wrench head (3), the left end of the rack (7) is movable through the adjustment groove (4) and the inner screw tube (6) in turn, the inner screw tube (6) and the rack (7) are meshed, the right end of the rack (7) is fixedly connected to an L-shaped mounting block (15), and the upper end of the mounting block (15) is fixedly connected to the auxiliary handle (8); The handle (2) comprises a fixed handle (9) and an adjusting block (10) rotatably connected to the upper end of the fixed handle (9); the surfaces of the fixed handle (9) and the adjusting block (10) are jointly sleeved with an adjusting sleeve (11); two sliding grooves (12) are bored through the surface of the fixed handle (9); a limiting block (13) is provided in the sliding groove (12); the front and rear ends of the limiting block (13) are respectively fixedly connected to the front and rear inner walls of the adjusting sleeve (11).

2. The multifunctional wrench with internal thread adjustment according to claim 1, characterized in that: A cleaning tip (14) is fixedly embedded in the lower end of the handle (2), and the lower end of the cleaning tip (14) is triangular.

3. The multifunctional wrench with internal thread adjustable pitch according to claim 1, characterized in that: The corresponding ends of the wrench head (3) and the auxiliary handle (8) are both provided with triangular tooth grooves. The plurality of triangular tooth grooves make the surfaces of the wrench head (3) and the auxiliary handle (8) present a multi-rack shape, and the racks of the two mesh with each other.

4. The multifunctional wrench with internal thread adjustable pitch according to claim 1, characterized in that: A plurality of protrusions are fixedly connected to the outer surface of the inner spiral tube (6), and the plurality of protrusions are distributed in a ring array around the central axis of the inner spiral tube (6).

5. The multifunctional wrench with internal thread adjustable pitch according to claim 1, characterized in that: The left end of the handle (2) is provided with an arc-shaped finger groove, and the right end of the handle (2) is fixedly connected to a plurality of rubber blocks.

6. The multifunctional wrench with internal thread adjustable pitch according to claim 1, characterized in that: A damper is provided at the connection point between the fixed handle (9) and the adjustment block (10), the adjustment sleeve (11) is made of a hard material, and the inner wall of the adjustment sleeve (11) and the outer surface of the fixed handle (9) are both provided with anti-slip grooves.

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