Screw tightening device

Abstract

The utility model relates to a screw tightening device, which belongs to the technical field of screw tightening and comprises a handle and a plurality of different types of tool bits, an inverted U-shaped plate is fixedly mounted at the bottom of the handle, a multi-surface block is rotatably mounted in the U-shaped plate, the plurality of tool bits are respectively and fixedly mounted on the side wall of the multi-surface block, and the tool bits are fixedly mounted on the side wall of the multi-surface block. The side wall, where the tool bits are located, of the multi-face block is perpendicular to the side wall of the U-shaped plate. Due to the fact that the multiple tool bits of different types and models are arranged at the same time, installation and detachment of multiple different screws can be achieved at the same time, multiple wrenches do not need to be carried at the same time, use is convenient, and burdens of users are relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw tightening technical field especially is screw tightening device. BACKGROUND

[0002] The screw tightening device is also called a wrench, which is a commonly used installation and disassembly tool.

[0003] The existing screw tightening device can only tighten screws of fixed size and shape, and when different sizes and shapes of screws need to be tightened, the corresponding type of wrench or screwdriver must be replaced, so the user needs to carry multiple commonly used types of screw tightening devices, which is very inconvenient for the user to replace and carry. UTILITY MODEL CONTENTS

[0004] The utility model provides a screw tightening device for the above-mentioned problems in the prior art, which is realized by the following technical solutions:

[0005] A screw tightening device includes a handle and multiple different types of bit heads, a U-shaped plate is fixedly installed at the bottom of the handle, a multi-sided block is rotatably installed in the U-shaped plate, the bit heads are fixedly installed on the side walls of the multi-sided block, and the side walls of the multi-sided block where the bit heads are located are perpendicular to the side walls of the U-shaped plate.

[0006] The utility model is further provided as follows: the bit heads include a straight head, a cross head, a square head, and multiple hexagonal heads of different sizes.

[0007] The utility model is further provided as follows: the side walls of the hexagonal heads are hexagonal, and the hexagonal heads are internally provided with external hexagonal cavities.

[0008] The utility model is further provided as follows: a rotating rod is fixedly installed between the U-shaped plates, the multi-sided block is rotatably installed through the outer ring of the rotating rod, the multi-sided block is horizontally provided with multiple annularly arranged first threaded holes, the number of the first threaded holes is consistent with the number of the bit heads, the side walls of the U-shaped plates are also provided with first threaded holes, and first bolts are threadedly connected in the first threaded holes.

[0009] The utility model is further provided as follows: the handle includes an inner handle rod and an outer handle cylinder, the inner handle rod is fixedly connected to the top of the U-shaped plate, the outer handle cylinder is slidably sleeved on the side of the inner handle rod away from the U-shaped plate, the side walls of the outer handle cylinder are provided with second threaded holes, the inner handle rod is vertically provided with multiple third threaded holes, and second bolts are threadedly connected in the second threaded holes and the third threaded holes.

[0010] The utility model further sets up: the handle cylinder is fixedly installed with handle on the side of U type board's one side, the handle outer ring is fixedly covered with antiskid pad.

[0011] To sum up, the beneficial technical effects of the utility model are:

[0012] By setting multiple different types of bit, the installation and dismounting of multiple different screws can be realized, multiple wrenches do not need to be carried simultaneously, the use is convenient, and the burden of the user is reduced; by setting the hex head and the outer hex cavity, the inner hex and the outer hex can be tightened; by setting the first threaded hole and the first bolt, the multi-sided block after rotation adjustment is fixed, so that rotation during screw tightening is avoided; by setting the inner handle rod and the outer handle cylinder, the length of the device can be adjusted, and the device is suitable for more scenes. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a schematic view for showing the overall structure of the utility model.

[0014] Fig. 2 is a side view for showing the multi-sided block.

[0015] Reference signs: 1, handle; 101, inner handle rod; 102, outer handle cylinder; 2, bit; 201, straight head; 202, cross head; 203, square head; 204, hex head; 205, outer hex cavity; 3, U-shaped plate; 4, multi-sided block; 5, rotating rod; 6, first threaded hole; 7, first bolt; 8, third threaded hole; 9, second bolt; 10, handle; 11, antiskid pad. DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail in combination with the drawings.

[0017] EMBODIMENT

[0018] As Figs. 1-2 shown, it is a screw tightening device disclosed by the utility model, including handle 1 and multiple different types of bits 2, the handle 1 bottom fixedly installed with inverted U-shaped plate 3, the U-shaped plate 3 is rotatably installed with multi-sided block 4, and multiple bits 2 are fixedly installed on the side wall of multi-sided block 4 respectively, and the side wall of the multi-sided block 4 where the bit 2 is located is vertically arranged with the side wall of the U-shaped plate 3.

[0019] Multiple bits 2 respectively commonly used types include straight head 201, cross head 202, square head 203 and multiple different sizes of hex head 204.

[0020] The side wall of the hex head 204 is hexagonally arranged, and the hex head 204 is internally provided with an outer hex cavity 205.

[0021] A rotating rod 5 is fixedly installed between the U-shaped plates 3. The multifaceted block 4 is rotatably installed on the outer ring of the rotating rod 5. The multifaceted block 4 has a plurality of first threaded holes 6 arranged in a ring array in the horizontal direction. The number of first threaded holes 6 is the same as the number of cutter heads 2. The side wall of the U-shaped plate 3 also has first threaded holes 6. The first threaded holes 6 are internally threaded with first bolts 7.

[0022] The handle 1 includes an inner handle rod 101 with a square cross-section and an outer handle cylinder 102 with a U-shaped cross-section. The inner handle rod 101 is fixedly connected to the top of the U-shaped plate 3. The outer handle cylinder 102 is slidably sleeved on the side of the inner handle rod 101 away from the U-shaped plate 3. The side wall of the outer handle cylinder 102 is provided with a second threaded hole. The inner handle rod 101 is provided with a plurality of third threaded holes 8 vertically. The second threaded holes and the third threaded holes 8 are internally threaded with second bolts 9.

[0023] A handle 10 is fixedly installed on the side of the outer handle cylinder 102 away from the U-shaped plate 3, and an anti-slip pad 11 is fixedly sleeved on the outer ring of the handle 10.

[0024] The specific implementation method of this example is as follows: When in use, remove the first bolt 7, rotate the multifaceted block 4 to select the desired cutter head 2, and make the cutter head 2 face away from the U-shaped plate 3. Then, screw the first bolt 7 into the first threaded hole 6 of the U-shaped plate 3 and the multifaceted block 4 for limiting. Select whether to adjust the length of the handle rod 1 as needed. If adjustment is needed, unscrew the second bolt 9, pull the inner handle rod 101 outward to the required length, and then screw the second bolt 9 into the second threaded hole and the third threaded hole 8 for fixing. After adjustment, tighten the screw through the cutter head 2. When not in use, the inner handle rod 101 and the outer handle tube 102 can be removed for storage, saving storage space.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A screw tightening device, comprising a handle (1) and a plurality of different types of cutting heads (2), characterized in that: An inverted U-shaped plate (3) is fixedly installed at the bottom of the handle (1). A multi-faceted block (4) is rotatably installed inside the U-shaped plate (3). Multiple blades (2) are fixedly installed on the side wall of the multi-faceted block (4). The side wall of the multi-faceted block (4) where the blades (2) are located is perpendicular to the side wall of the U-shaped plate (3).

2. The screw tightening device according to claim 1, characterized in that: The plurality of cutting heads (2) include a flathead (201), a crosshead (202), a square head (203), and a plurality of hexagonal heads (204) of different sizes.

3. The screw tightening device according to claim 2, characterized in that: The hexagonal head (204) has a hexagonal sidewall and an external hexagonal cavity (205) inside.

4. A screw tightening device according to claim 1, characterized in that: A rotating rod (5) is fixedly installed between the U-shaped plates (3). The multifaceted block (4) is rotatably installed on the outer ring of the rotating rod (5). The multifaceted block (4) has a plurality of annular array first threaded holes (6) opened laterally. The number of first threaded holes (6) is the same as the number of cutter heads (2). The side wall of the U-shaped plate (3) also has a first threaded hole (6). The first threaded hole (6) is internally threaded with a first bolt (7).

5. A screw tightening device according to claim 1, characterized in that: The handle (1) includes an inner handle rod (101) and an outer handle cylinder (102). The inner handle rod (101) is fixedly connected to the top of the U-shaped plate (3). The outer handle cylinder (102) is slidably sleeved on the side of the inner handle rod (101) away from the U-shaped plate (3). The side wall of the outer handle cylinder (102) is provided with a second threaded hole. The inner handle rod (101) is provided with a plurality of third threaded holes (8) in a vertical direction. The second threaded holes and the third threaded holes (8) are internally threaded with a second bolt (9).

6. A screw tightening device according to claim 5, characterized in that: A handle (10) is fixedly installed on the side of the outer handle (102) away from the U-shaped plate (3), and an anti-slip pad (11) is fixedly sleeved on the outer ring of the handle (10).

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