Screw twisting wrench

Abstract

The utility model relates to the field of hardware tools, in particular to a screw twisting wrench. The screw twisting wrench comprises a handle, and one end of the handle is provided with a first jaw which is fixedly connected with the handle; the junction of the handle and the first jaw is provided with a sliding chute and a sliding hole which are positioned at a horizontal angle; the diameter of the section of the sliding hole is larger than the width of the section of the sliding groove. The junction of the handle and the first jaw is provided with a first through hole at a horizontal angle, and the first through hole is communicated with the sliding hole; comprising a second jaw, a fixedly connected sliding block is arranged below the second jaw, and a fixedly connected sliding column is arranged below the sliding block; the sliding block is installed in the sliding groove in a sliding mode. The sliding columns are installed in the sliding holes in a sliding mode. Comprising a lead screw, and one end of the lead screw penetrates through the first through hole and is fixedly connected with the sliding column. Comprising a nut sleeve which is in threaded connection with the lead screw. One end of the nut sleeve abuts against the side face of the handle.

Description

Technical Field

[0001] The utility model relates to the field of hardware tools, in particular to a screw wrench. Background Art

[0002] A wrench is a commonly used installation and removal tool. It uses the principle of leverage to turn bolts, screws, nuts, and other hardware with openings or holes for threaded fastenings. Wrenches are typically made of carbon or alloy structural steel. A wrench typically has an opening or hole for holding the bolt or nut at one or both ends of the handle. Applying force to the handle in the direction of thread rotation turns the bolt or nut.

[0003] Different wrenches correspond to different bolts and nuts. To accommodate a range of bolt and nut sizes with the same wrench, currently, everyone uses adjustable wrenches. Adjustable wrenches, also known as adjustable wrenches, are convenient to use because their openings can be adjusted within a certain range. They can be used not only for standard metric and imperial bolts, but also for some custom-made non-standard bolts. In addition to adjustable wrenches, some currently use chains to bundle bolts and nuts to adjust bolts and nuts of different sizes. However, existing wrenches have at least the following problems:

[0004] 1. Existing wrenches are prone to slipping and difficult to twist when there is oil on the bolts and nuts, or when the bolts and nuts are rusty, or when the parallel edges and corners are not obvious;

[0005] 2. Existing wrenches, even adjustable wrenches, are limited in the range of sizes that can be used universally;

[0006] 3. In particular, in existing adjustable wrenches, the head of the wrench adjusts the size of the plate opening by rotating the turbine, so that there is only a small contact surface between the adjustable wrench opening and the turbine. During use, when it is necessary to forcefully turn some bolts and nuts, if the wrench is made of poor material, it is easy to break the connection between the turbine and the adjustable wrench opening. Utility Model Content

[0007] The utility model aims to solve the problem that the connection between the movable wrench of the current adjustable wrench and the turbine has only a small contact surface, which causes the connection to be easily broken.

[0008] To solve the above technical problems, the utility model provides a screw wrench, comprising a handle, one end of which is fixedly connected to a first jaw; a sliding groove and a sliding hole at a horizontal angle are provided at the junction of the handle and the first jaw, the sliding groove and the sliding hole being arranged in parallel and communicating with each other;

[0009] The upper portion of the slide passes through the first jaw;

[0010] The cross-sectional diameter of the sliding hole is greater than the cross-sectional width of the sliding groove;

[0011] A first through hole at a horizontal angle is provided at the junction of the handle and the first jaw, the first through hole being connected to the sliding hole and being on the same axis;

[0012] The second jaw comprises a slider fixedly connected below the second jaw, and a slide column fixedly connected below the slider; the slider is slidably mounted in the slide groove; and the slide column is slidably mounted in the slide hole;

[0013] The screw rod comprises a screw rod, the screw rod is at a horizontal angle; one end of the screw rod passes through the first through hole and is fixedly connected to the sliding column;

[0014] It comprises a nut sleeve, which is threadedly connected to the screw rod; one end of the nut sleeve abuts against the side surface of the handle.

[0015] As a preferred embodiment of the screw wrench of the utility model, a hanging hole is provided at the other end of the handle.

[0016] As a preferred embodiment of the screw torque wrench of the present invention, the first jaw and the second jaw have an elongated first bevel and a lengthened second bevel, respectively.

[0017] As a preferred embodiment of the screw wrench of the present invention, a limit block is fixedly connected to the side of the handle, and the limit block is at the same height as the first through hole; a limit slot is provided in the limit block, and the limit block has a second through hole horizontally passing through both sides, and the second through hole is on the same axis as the first through hole and is connected; the limit slot and the second through hole respectively pass through the bottom of the limit block;

[0018] The nut sleeve passes through the second through hole and is at least partially located in the limiting groove.

[0019] As a preferred embodiment of the screw wrench of the utility model, the end of the nut sleeve in the limiting groove has a fixedly connected annular limiting ring, which is located in the limiting groove; the diameter of the annular limiting ring is larger than the diameter of the second through hole but smaller than the width of the limiting groove.

[0020] Beneficial effects

[0021] The present invention solves the above existing problems and other existing problems not mentioned above and accordingly brings at least the following innovative advantages:

[0022] The present invention utilizes a sliding groove and sliding hole, as well as a slider and slide column fixedly connected to the second jaw, to enable the second jaw to slide back and forth using the sliding groove and sliding hole as guides, thereby adjusting the size of the jaws. The first through-hole is provided to facilitate the passage of the screw rod, and the connection between the nut sleeve and the screw rod allows the second jaw to be positioned at different widths. Furthermore, the present invention utilizes a screw rod with full contact around its entire perimeter, overcoming the problem of existing adjustable wrenches where the connection between the movable jaw and the turbine has only a small contact surface, which can easily cause the jaws to break.

[0023] The utility model screw wrench has a limiting groove provided on the limiting block and an annular limiting ring provided on the nut sleeve, so that the annular limiting ring can be moved in the limiting groove, thereby limiting the nut sleeve and preventing the nut sleeve from sliding left and right; and further, by rotating the nut sleeve clockwise and counterclockwise, the second jaw can be pushed to move left or right through the threaded connection between the nut sleeve and the screw rod.

[0024] The screw wrench of the utility model can match more bolts and nuts of different sizes by means of the extended first and second inclined surfaces and the further sliding combination of the second jaw. At the same time, since both the first jaw and the second jaw have the first and second inclined surfaces, when the bolt and nut are tightened, the two jaws can abut against the four surfaces of the bolt and nut at the same time, thereby further avoiding slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional effect diagram of the utility model;

[0026] Figure 2 for Figure 4 Cross-section rendering at the middle AA position;

[0027] Figure 3 This is a front view of the utility model;

[0028] Figure 4 This is a top view of the utility model;

[0029] Figure 5 This is an exploded rendering of the utility model;

[0030] Figure 6 This is a three-dimensional rendering of the handle of the utility model;

[0031] Figure 7 for Figure 2 A partial enlarged view of area A in the middle;

[0032] Figure 8 for Figure 6 A partial enlarged view of the middle B area;

[0033] Figure 9 for Figure 6 A partial enlarged view of the middle C area.

[0034] In the figure: 1. handle, 2. first jaw, 3. slide groove, 4. slide hole, 5. first through hole, 6. second jaw, 7. slider, 8. slide column, 9. screw rod, 10. nut sleeve, 11. hanging hole, 12. first inclined surface, 13. second inclined surface, 14. limit block, 15. limit groove, 16. second through hole, 17. annular limit ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the technical solutions of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present disclosure.

[0036] The same reference numerals in the accompanying drawings represent the same components. It should be noted that the embodiments described are only part of the embodiments of the present disclosure, rather than all the embodiments.

[0037] Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

[0038] The utility model screw wrench, see Figures 1 to 9 , including a handle 1, Figure 6 It is shown that one end of the handle 1 has a first jaw 2 fixedly connected; Figure 5 and Figure 8 The intersection of the handle 1 and the first jaw 2 is shown to have a horizontally-angled slide groove 3 and a slide hole 4, wherein the slide groove 3 and the slide hole 4 are arranged in parallel and connected to each other;

[0039] Figure 8 It is shown that the upper portion of the slide groove 3 passes through the first jaw 2; the cross-sectional diameter of the slide hole 4 is larger than the cross-sectional width of the slide groove 3;

[0040] Figure 7 and Figure 9 It is shown that the junction of the handle 1 and the first jaw 2 has a first through hole 5 at a horizontal angle, as shown in FIG. Figure 7 As shown, the first through hole 5 is connected to the sliding hole 4 and is located on the same axis;

[0041] comprising a second jaw 6, Figure 3 The second jaw 5 is shown in a mirror position with respect to the first jaw 2; Figure 5The second jaw 6 is shown to have a slider 7 fixedly connected below it, and the slider 7 is shown to have a slide post 8 fixedly connected below it; Figure 7 It shows that the slider 7 is slidably installed in the slide groove 3; the slide post 8 is slidably installed in the slide hole 4;

[0042] Including screw rod 9, Figure 5 and Figure 7 The screw rod 9 is shown to be at a horizontal angle; one end of the screw rod 9 passes through the first through hole 5 and is fixedly connected to the slide post 8;

[0043] Including nut sleeve 10, Figure 7 It is shown that the nut sleeve 10 is threadedly connected to the screw rod 9; one end of the nut sleeve 10 abuts against the side of the handle 1. The other end of the handle 1 is provided with a hanging hole 11. The utility model screw wrench, through the provided slide groove 3 and slide hole 4, and the slider 7 and slide column 8 fixedly connected to the second jaw 6, enables the second jaw 6 to slide back and forth with the slide groove 3 and slide hole 4 as guide rails to adjust the size of the jaws; the first through hole 5 provided therein is used to facilitate the passage of the screw rod 9, and the connection between the nut sleeve 10 and the screw rod 9 enables the second jaw 6 to be positioned at different widths. In addition, the utility model screw wrench, wherein the nut sleeve 10 and the screw rod 9 are in full contact around the entire periphery, also overcomes the problem that the connection between the movable jaw and the turbine of the current movable wrench has only a small contact surface, which causes it to break easily.

[0044] Further, Figure 1 、 Figure 3 and Figure 8 The limiting blocks 14 fixedly connected to the side of the handle 1 are shown respectively. Figure 7 It shows that the limit block 14 is at the same height as the first through hole 5; Figure 9 As shown, the limiting block 14 is provided with a limiting slot 15, see Figure 7 and Figure 9 The limit block 14 has a second through hole 16 running horizontally through both sides. The second through hole 16 is coaxial with the first through hole 5 and is connected; Figure 9 It is shown that the limiting groove 15 and the second through hole 16 respectively pass through the bottom of the limiting block 14; Figure 7 It shows that the nut sleeve 10 passes through the second through hole 16 and is at least partially located in the limiting groove 15; and Figure 7 It shows that the end of the nut sleeve 10 in the limiting groove 15 has a fixedly connected annular limiting ring 17. Figure 5 Shows a three-dimensional effect diagram of the nut sleeve 10 with an annular limiting ring 17; Figure 7 As shown, the annular limiting ring 17 is located in the limiting groove 15; Figure 7and Figure 9 The diameter of the annular limiting ring 17 is larger than the diameter of the second through hole 16, but smaller than the width of the limiting groove 15, so that Figure 7 As shown, the nut sleeve 10 will not slide to the left, and the annular limiting ring 17 can rotate in the limiting groove 15. The present invention screw wrench, through the limiting groove 15 provided on the limiting block 14 and the annular limiting ring 17 provided on the nut sleeve 10, allows the annular limiting ring 17 to be movable in the limiting groove 15, thereby limiting the nut sleeve 10 and preventing the nut sleeve 10 from sliding left and right; and further, by rotating the nut sleeve 10 clockwise and counterclockwise, the second jaw 6 can be pushed to the left or right through the threaded connection between the nut sleeve 10 and the screw rod 9.

[0045] See also Figure 3 and Figure 5 The first jaw 2 and the second jaw 6 respectively have an extended first bevel 12 and a second bevel 13. The screw wrench of the utility model, through the extended first bevel 12 and the second bevel 13, further combines with the sliding of the second jaw 6, thereby achieving the ability to match more bolts and nuts of different sizes; at the same time, because the first jaw 2 and the second jaw 6 both have the first bevel 12 and the second bevel 13, when tightening the bolt or nut, the two jaws can simultaneously abut the four surfaces of the bolt or nut, thereby further preventing slipping.

[0046] The words “first”, “second” and similar terms used in the specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as “a”, “an” or “the” do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as “include” or “comprise” mean that the elements or objects appearing before “include” or “comprises” include the elements or objects listed after “include” or “comprises” and their equivalents, and do not exclude other elements or objects. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0047] The above-mentioned preferred embodiments of the present invention are only preferred embodiments and are not intended to limit the present invention. The scope of protection of the present invention is defined by the appended claims. For ordinary technicians in this field, other embodiments can be obtained based on the drawings without creative work, and any changes based on the claims of the present invention are within the scope of protection of the present invention.

Claims

1. A screw wrench, characterized in that: The invention comprises a handle, one end of which is fixedly connected to a first jaw; a sliding groove and a sliding hole are provided at the junction of the handle and the first jaw, the sliding groove and the sliding hole are arranged in parallel and are in communication with each other; The upper portion of the slide passes through the first jaw; The cross-sectional diameter of the sliding hole is greater than the cross-sectional width of the sliding groove; A first through hole at a horizontal angle is provided at the junction of the handle and the first jaw, the first through hole being connected to the sliding hole and being on the same axis; It comprises a second jaw, a slider fixedly connected below the second jaw, and a slide column fixedly connected below the slider; The slider is slidably installed in the slide groove; the slide post is slidably installed in the slide hole; The screw rod comprises a screw rod, the screw rod is at a horizontal angle; one end of the screw rod passes through the first through hole and is fixedly connected to the sliding column; It comprises a nut sleeve, which is threadedly connected to the screw rod; one end of the nut sleeve abuts against the side surface of the handle.

2. The screw wrench according to claim 1, characterized in that: The other end of the handle is provided with a hanging hole.

3. The screw torque wrench according to claim 1, characterized in that: The first jaw and the second jaw have an elongated first inclined surface and a lengthened second inclined surface, respectively.

4. The screw torque wrench according to claim 1, characterized in that: A limit block is fixedly connected to the side of the handle, and the limit block is at the same height as the first through hole; a limit slot is provided in the limit block, and the limit block has a second through hole horizontally passing through both sides, and the second through hole is coaxial with the first through hole and is connected; the limit slot and the second through hole respectively pass through the bottom of the limit block; The nut sleeve passes through the second through hole and is at least partially located in the limiting groove.

5. The screw torque wrench according to claim 4, characterized in that: The end of the nut sleeve in the limiting groove has a fixedly connected annular limiting ring, which is located in the limiting groove; the diameter of the annular limiting ring is larger than the diameter of the second through hole but smaller than the width of the limiting groove.

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