A D-handle

Abstract

The application provides a D-shaped wrench, comprising a straight rod handle, an arc-shaped clamping part is installed at one end of the straight rod handle, and a mounting space is formed between the clamping part and the straight rod handle; an adjusting mechanism, the adjusting mechanism comprises an adjusting assembly and a driving assembly, the adjusting assembly is arranged in the mounting space, and the adjusting assembly and the clamping part enclose a D-shaped clamping space; the driving assembly is arranged on the straight rod handle and is in transmission connection with the adjusting assembly, and is used for driving the adjusting assembly to move towards the direction close to or away from the straight rod handle, so as to adjust the size of the clamping space. The wrench provided by the application can be flexibly adapted to different specifications of components, frequent wrench replacement is not needed, and operation is convenient; especially for D-shaped workpiece rotating operation, the D-shaped clamping space can be accurately adapted to the shape of the workpiece, stable clamping is realized, the workpiece can be effectively driven to rotate, damage of the workpiece caused by concentrated clamping force or shape mismatching can be avoided, and the use reliability and workpiece protection effect are improved.

Description

Technical Field

[0001] This disclosure generally relates to the field of wrench technology, and specifically to a D-type wrench. Background Technology

[0002] In the use of wrenches, existing wrenches often have poor clamping adaptability. They need to be frequently changed when facing different sizes of parts to be clamped, which is cumbersome. Especially when rotating D-shaped workpieces, the clamping structure of traditional wrenches is difficult to match the shape of D-shaped workpieces accurately. Either the clamping space is fixed and cannot stably wrap the workpiece, making it difficult to effectively drive the workpiece to rotate, or the clamping force is concentrated or the shape does not fit, which can easily cause damage to the surface or structure of the workpiece during rotation. This not only affects the work efficiency, but also increases the cost of workpiece wear and tear, and cannot meet the requirements for efficient and non-destructive clamping and rotation of D-shaped workpieces. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a D-type wrench to solve the above problems.

[0004] This application provides a D-type wrench, comprising: A straight handle, one end of which is equipped with an arc-shaped clamping part, and an installation space is formed between the clamping part and the straight handle; An adjustment mechanism is provided, comprising an adjustment component and a drive component. The adjustment component is disposed within the installation space and together with the clamping part forms a D-shaped clamping space. The drive component is disposed on the straight handle and is pulsatorically connected to the adjustment component, and is used to drive the adjustment component to move toward or away from the straight handle to adjust the size of the clamping space.

[0005] According to the technical solution provided in the embodiments of this application, the clamping part is provided with two guide grooves, and an arc-shaped through groove is provided for each guide groove; The adjustment component includes: The abutting sleeve is hollow inside and connected at both ends. Each end of the abutting sleeve is provided with a support rod. One end of the support rod can extend and retract inside the abutting sleeve, and the other end is slidably installed in the guide groove. Two locking pins pass through the through slot to connect the clamping part and the support rod.

[0006] According to the technical solution provided in the embodiments of this application, the straight handle has an internal mounting groove, and the mounting groove extends through both sides of the straight handle; the drive assembly includes: A rotating sleeve is rotatably installed in the mounting groove and extends from both sides of the straight rod handle; An abutting screw is provided inside the straight rod handle, passes through the rotating sleeve, and is threadedly connected to the rotating sleeve. One end of the abutting screw is fixedly connected to the abutting sleeve.

[0007] According to the technical solution provided in the embodiments of this application, the clamping part is provided with a plurality of anti-slip pads on the side near the clamping space.

[0008] According to the technical solution provided in the embodiments of this application, the straight handle includes a front handle and a rear handle that are separate from each other, and the front handle and the rear handle are connected by an extension rod; the two ends of the extension rod extend into the front handle and the rear handle respectively, and are slidably connected to the front handle and the rear handle respectively.

[0009] According to the technical solution provided in the embodiments of this application, each of the front handle and the rear handle is provided with a rotating pin. The two rotating pins pass through one side of the outer wall of the front handle and the rear handle respectively, and are threadedly connected to the front handle and the rear handle respectively.

[0010] According to the technical solution provided in the embodiments of this application, a grip sleeve is provided on the rear handle.

[0011] According to the technical solution provided in the embodiments of this application, a hook ring is provided at the end of the rear handle away from the front handle.

[0012] According to the technical solution provided in the embodiments of this application, the outer wall of the rotating sleeve is provided with anti-slip protrusions.

[0013] Compared with the prior art, the advantages of this application are as follows: This application forms an installation space with the arc-shaped clamping part at one end of the straight handle and the straight handle. The adjustment component of the adjustment mechanism is located in this space and surrounds the D-shaped clamping space with the clamping part. The drive component can drive the adjustment component to move to adjust the size of the clamping space. This structure can flexibly adapt to different specifications of parts, eliminating the need for frequent wrench changes and making operation convenient. Especially for the rotation of D-shaped workpieces, the D-shaped clamping space can be precisely adapted to the shape of the workpiece to achieve stable clamping. It can effectively drive the workpiece to rotate while avoiding damage to the workpiece caused by concentrated clamping force or shape mismatch, thus improving the reliability of use and the workpiece protection effect. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the structure of the D-type wrench provided in this application; Figure 2 for Figure 1 The diagram shows a top view of the D-type wrench. Figure 3for Figure 1 The diagram shows the structure of the D-type wrench adjustment assembly after it has been moved. Figure 4 for Figure 1 The diagram shows the structure of the D-type wrench after it has been extended.

[0015] Reference numerals: 10. Straight handle; 11. Mounting slot; 12. Front handle; 13. Rear handle; 14. Extension rod; 15. Rotating pin; 16. Grip sleeve; 17. Hook ring; 20. Clamping part; 21. Guide groove; 22. Through groove; 23. Anti-slip pad; 30. Adjustment component; 31. Abutment sleeve; 32. Support rod; 33. Locking pin; 40. Drive component; 41. Rotating sleeve; 42. Abutment screw; 50. Clamping space. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Please refer to Figures 1-4 This application provides a D-type wrench, comprising: A straight handle 10, one end of which is equipped with an arc-shaped clamping part 20, and an installation space is formed between the clamping part 20 and the straight handle 10; The adjustment mechanism includes an adjustment component 30 and a drive component 40. The adjustment component 30 is disposed within the installation space and together with the clamping part 20 forms a D-shaped clamping space 50. The drive component 40 is disposed on the straight rod handle 10 and is pulsatorically connected to the adjustment component 30. It is used to drive the adjustment component 30 to move toward or away from the straight rod handle 10 to adjust the size of the clamping space 50.

[0019] Specifically, such as Figure 1As shown, the straight handle 10 serves as the basic component for gripping and supporting the entire wrench. At one end of its length, an arc-shaped clamping part 20 is fixedly installed by welding, bolting, or integral molding. The arc of the clamping part 20 is adapted to the outer contour of the D-shaped workpiece, and the two ends of the clamping part 20 are respectively connected to the corresponding side edges of the straight handle 10. Thus, an installation space for accommodating the adjustment mechanism is formed between the inner side of the clamping part 20 and the straight handle 10. The size of this installation space needs to meet the needs of the adjustment mechanism to move inside.

[0020] The adjustment mechanism, as a key component for achieving adjustable clamping space 50, is further divided into two parts: adjustment component 30 and drive component 40. Adjustment component 30 is integrally set within the aforementioned installation space. Its side near clamping part 20, together with the inner wall of clamping part 20, forms a D-shaped clamping space 50 for wrapping the workpiece. The shape of the clamping space 50 matches the D-shaped workpiece, ensuring complete wrapping of the workpiece. Drive component 40 is mounted on straight handle 10, and the power output end of drive component 40 is connected to the corresponding end of adjustment component 30. When drive component 40 is operated, it can transmit power to adjustment component 30, causing adjustment component 30 to move along the direction closer to straight handle 10 (to expand the size of clamping space 50) or along the direction away from straight handle 10 (to shrink the size of clamping space 50). Ultimately, this achieves the purpose of adjusting the size of clamping space 50 according to different workpiece specifications, ensuring stable clamping of the workpiece.

[0021] Furthermore, the clamping part 20 is provided with two guide grooves 21, and an arc-shaped through groove 22 is provided for each guide groove 21; The adjustment component 30 includes: The abutting sleeve 31 is hollow inside and connected at both ends. Each end of the abutting sleeve 31 is provided with a support rod 32. One end of the support rod 32 can be extended and retracted inside the abutting sleeve 31, and the other end is slidably installed in the guide groove 21. Two locking pins 33 pass through the through groove 22 to connect the clamping part 20 and the support rod 32.

[0022] Specifically, the clamping part 20, as the component that directly contacts the workpiece, has a guide groove 21 at each of its two ends. The extension direction of the guide groove 21 is consistent with the arc extension direction of the clamping part 20, which is used to provide trajectory constraints for the movement of the adjustment component 30. At the same time, corresponding to the position of each guide groove 21, an arc-shaped through groove 22 is also provided in the thickness direction of the clamping part 20. The arc direction of the through groove 22 is completely consistent with the direction of the guide groove 21, and the width of the through groove 22 is slightly larger than the diameter of the subsequent locking pin 33, ensuring that the locking pin 33 can slide smoothly in the through groove 22.

[0023] The abutment sleeve 31 adopts a hollow tubular structure, with both ends of its internal cavity completely connected, and the inner diameter of the cavity is adapted to the outer diameter of the subsequent support rod 32. At each end of the abutment sleeve 31, a support rod 32 is movably fitted. One end of the support rod 32 can extend and retract along the axial direction of the abutment sleeve 31 into the internal cavity of the abutment sleeve 31, while the other end is slidably installed in the guide groove 21, so that the support rod 32 can move stably along the trajectory of the guide groove 21. Two locking pins 33 are respectively set for the two through grooves 22. One end of each locking pin 33 passes through the end of the support rod 32 in the through groove 22 and the guide groove 21 in sequence, thereby stably connecting the clamping part 20 and the support rod 32. This ensures that the support rod 32 can slide in the through groove 22 with the locking pin 33, and also prevents the support rod 32 from disengaging from the guide groove 21, thus ensuring the reliability of the overall movement of the adjustment assembly 30.

[0024] The adjustment component 30 in this application does not affect the overall outer contour of the wrench during the adjustment process, thereby avoiding interference with other external mechanisms during use.

[0025] Furthermore, the straight handle 10 has a mounting groove 11 inside, the mounting groove 11 extending through both sides of the straight handle 10; the drive assembly 40 includes: Rotary sleeve 41, which is rotatably installed in the mounting groove 11 and extends out of the straight rod handle 10 from both sides; Abutting screw 42 is disposed inside the straight handle 10, passes through the rotating sleeve 41 and is threadedly connected to the rotating sleeve 41, and one end of the abutting screw 42 is fixedly connected to the abutting sleeve 31.

[0026] Specifically, the straight handle 10 serves as the mounting carrier for the drive assembly 40, and an installation groove 11 is provided inside it, penetrating both side walls of the straight handle 10. The cross-sectional shape of the installation groove 11 is adapted to the shape of the subsequent rotating sleeve 41. The opening size at both ends of the installation groove 11 is slightly larger than the outer diameter of the rotating sleeve 41, which ensures that the rotating sleeve 41 can smoothly pass into the installation groove 11, and avoids excessive gap between the two causing the rotating sleeve 41 to wobble, thus providing a structural basis for the stable operation of the drive assembly 40.

[0027] The rotating sleeve 41 is a hollow tubular structure with internal threads on its inner wall. It is rotatably mounted in the mounting groove 11 of the straight handle 10. During installation, the rotating sleeve 41 can rotate flexibly around its own axis through bearing insertion or bushing engagement. Both sides of the rotating sleeve 41 extend from the straight handle 10, with the extension length designed to facilitate rotation by hand or tool. The outer wall of the abutting screw 42 has external threads that match the internal threads of the rotating sleeve 41. It is entirely housed inside the straight handle 10, with one end extending along the rotating sleeve 41. The axis of the screw passes through the internal cavity of the rotating sleeve 41 and is connected to the rotating sleeve 41 by thread engagement. The other end is stably connected to the middle position of the abutting sleeve 31 in the adjusting assembly 30 by welding, flange connection or thread fixing. When the operator rotates the rotating sleeve 41, the internal thread of the rotating sleeve 41 will form a relative movement with the external thread of the abutting screw 42, which will drive the abutting screw 42 to move along the length of the straight rod handle 10, thereby pulling or pushing the abutting sleeve 31 to realize the position adjustment of the adjusting assembly 30.

[0028] Furthermore, the clamping part 20 is provided with a plurality of anti-slip pads 23 on the side near the clamping space 50.

[0029] Specifically, multiple anti-slip pads 23 are spaced apart along the arc-shaped extension direction of the clamping part 20. The anti-slip pads 23 are made of elastic and wear-resistant material to ensure that they have a certain elasticity to buffer the clamping force and prevent damage to the workpiece during rotation; at the same time, the surface of the anti-slip pads 23 facing the workpiece is also provided with fine anti-slip texture, which can further increase the friction with the surface of the workpiece.

[0030] Furthermore, the straight handle 10 includes a front handle 12 and a rear handle 13 that are separate from each other, and the front handle 12 and the rear handle 13 are connected by an extension rod 14; the two ends of the extension rod 14 extend into the front handle 12 and the rear handle 13 respectively, and are slidably connected to the front handle 12 and the rear handle 13 respectively.

[0031] Specifically, in this embodiment, the straight handle 10 is divided into two independent parts: a front handle 12 and a rear handle 13. The front handle 12 is located near the clamping part 20, and its end away from the clamping part 20 has a hollow cavity inside. The cross-sectional shape of the cavity is adapted to the cross-section of the subsequent extension rod 14, and the depth of the cavity is designed according to the preset extension length. The rear handle 13 serves as the main gripping part, and its end near the front handle 12 also has a hollow cavity inside. This cavity is coaxially corresponding to the hollow cavity of the front handle 12, and the inner diameter of the cavity is slightly larger than the outer diameter of the extension rod 14 to ensure that the extension rod 14 can be smoothly inserted.

[0032] The extension rod 14 is a long, rigid rod. One end extends into the interior of the front handle 12 along the axis of the hollow cavity. It is slidably connected to the front handle 12 through the sliding fit between the inner wall of the cavity and the outer wall of the extension rod 14. The other end of the extension rod 14 extends into the interior of the rear handle 13 along the axis of the hollow cavity. It is also slidably connected to the rear handle 13 through the sliding fit.

[0033] When it is necessary to adjust the overall length of the straight handle 10, push or pull the front handle 12 and the rear handle 13 to extend or retract the extension rod 14 within the cavity of the front handle 12 or the rear handle 13, thereby changing the distance between the front handle 12 and the rear handle 13 to suit the gripping habits of different operators or the operational needs of different work spaces.

[0034] Furthermore, each of the front handle 12 and the rear handle 13 is provided with a rotating pin 15. The two rotating pins 15 pass through one side of the outer wall of the front handle 12 and the rear handle 13 respectively, and are threadedly connected to the front handle 12 and the rear handle 13 respectively.

[0035] Specifically, the front handle 12 and the rear handle 13 are each equipped with a rotating pin 15 for locking the telescopic position. The two rotating pins 15 have identical structural specifications, and their installation positions are adapted to the sliding connection areas of the front handle 12 and the extension rod 14, and the rear handle 13 and the extension rod 14, respectively. After the straight handle 10 is adjusted to the required length, the rotating pin 15 on the front handle 12 is rotated clockwise, causing its end to move closer to the extension rod 14 until the end of the rotating pin 15 is tightly pressed against the outer wall of the extension rod 14. The frictional force restricts the relative sliding between the extension rod 14 and the front handle 12. Similarly, the rotating pin 15 on the rear handle 13 is rotated clockwise, causing its end to press against the outer wall of the extension rod 14, restricting the relative sliding between the extension rod 14 and the rear handle 13, thereby locking the overall length of the straight handle 10. When the length needs to be adjusted again, the two rotating pins 15 are rotated counterclockwise, causing their ends to disengage from the outer wall of the extension rod 14. This releases the lock and allows for readjustment of the handle position. The operation is convenient and the locking stability is strong.

[0036] Furthermore, a grip sleeve 16 is fitted onto the rear handle 13.

[0037] Specifically, the grip sleeve 16 is made of a soft material with elasticity and anti-slip properties, and is fitted onto the outer wall of the rear handle 13 by an interference fit. The outer wall of the grip sleeve 16 may also be provided with anti-slip textures or raised particles to further increase the friction between the hand and the grip sleeve 16, ensuring a stable grip.

[0038] Furthermore, the rear handle 13 is provided with a hook ring 17 at the end away from the front handle 12.

[0039] Specifically, by setting up the hanging ring 17, operators can directly hang it on the designated hook through the hanging ring 17 to achieve orderly storage.

[0040] Furthermore, the outer wall of the rotating sleeve 41 is provided with anti-slip protrusions.

[0041] Specifically, the textured surface formed by the anti-slip protrusions increases the friction between the hand and the outer wall of the rotating sleeve 41, ensuring that it is not easy to slip when rotating, allowing the operator to drive the rotating sleeve 41 with less effort.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A D-type wrench, characterized in that, include: A straight handle (10) has an arc-shaped clamping part (20) installed at one end, and an installation space is formed between the clamping part (20) and the straight handle (10). The adjustment mechanism includes an adjustment component (30) and a drive component (40). The adjustment component (30) is located in the installation space and forms a D-shaped clamping space (50) with the clamping part (20). The drive component (40) is located on the straight handle (10) and is connected to the adjustment component (30) for driving the adjustment component (30) to move closer to or further away from the straight handle (10) to adjust the size of the clamping space (50).

2. The D-type wrench according to claim 1, characterized in that, The clamping part (20) is provided with two guide grooves (21), and an arc-shaped through groove (22) is provided for each guide groove (21). The adjustment component (30) includes: The abutting sleeve (31) is hollow inside and connected at both ends. Each end of the abutting sleeve (31) is provided with a support rod (32). One end of the support rod (32) can be extended and retracted inside the abutting sleeve (31), and the other end is slidably installed in the guide groove (21). Two locking pins (33) pass through the through groove (22) to connect the clamping part (20) and the support rod (32).

3. The D-type wrench according to claim 2, characterized in that, The straight handle (10) has a mounting groove (11) inside, and the mounting groove (11) extends through both sides of the straight handle (10); the drive assembly (40) includes: Rotary sleeve (41), which is rotatably installed in the mounting groove (11) and extends from both sides of the straight rod handle (10). Abutting screw (42) is located inside the straight handle (10) and passes through the rotating sleeve (41) and is threadedly connected to the rotating sleeve (41). One end of the abutting screw (42) is fixedly connected to the abutting sleeve (31).

4. The D-type wrench according to claim 3, characterized in that, The clamping part (20) is provided with a plurality of anti-slip pads (23) on the side near the clamping space (50).

5. The D-type wrench according to claim 4, characterized in that, The straight handle (10) includes a front handle (12) and a rear handle (13) that are separated from each other. The front handle (12) and the rear handle (13) are connected by an extension rod (14). The two ends of the extension rod (14) extend into the front handle (12) and the rear handle (13) respectively, and are slidably connected to the front handle (12) and the rear handle (13) respectively.

6. The D-type wrench according to claim 5, characterized in that, Each of the front handle (12) and the rear handle (13) is provided with a rotating pin (15). The two rotating pins (15) pass through one side of the outer wall of the front handle (12) and the rear handle (13) respectively, and are threadedly connected to the front handle (12) and the rear handle (13) respectively.

7. The D-type wrench according to claim 6, characterized in that, A grip sleeve (16) is fitted onto the rear handle (13).

8. The D-type wrench according to claim 7, characterized in that, The rear handle (13) is provided with a hook ring (17) at the end away from the front handle (12).

9. The D-type wrench according to claim 8, characterized in that, The outer wall of the rotating sleeve (41) is provided with anti-slip protrusions.

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