Quick-release knife handle

Abstract

The quick-release knife handle provided by the utility model is used for clamping a knife blade and comprises a handle body, the clamping piece at least comprises a first clamping jaw and a second clamping jaw; the lock cap is arranged outside the clamping piece in a sleeving mode, and a through hole allowing the clamping piece to penetrate through is formed in the lock cap; the clamping pieces can partially penetrate through the through holes and can be gathered under the action of the through holes; the first clamping jaw is provided with a first abutting face used for abutting against the blade in the width direction. The first clamping jaw and the second clamping jaw are used for getting close to each other under the gathering effect of the lock caps so as to clamp the blade. Therefore, on one hand, the blade is prevented from deviating.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tool holder, especially a quick-release tool holder. BACKGROUND

[0002] During the maintenance of electronic equipment, blades are often used for maintenance. In order to facilitate the replacement of blades by maintenance personnel, a quick-release tool holder is proposed in Chinese utility model patent CN220241355U, which realizes quick replacement of blades by loosening the clamping arms.

[0003] When the blade is clamped by the clamping arms, the blade is kept stationary by the static friction force between its side surface and the clamping arms. However, when the blade is subjected to an external force in the opposite direction of the static friction force and the force is greater than the maximum static friction force, the blade will be offset, thereby affecting the maintenance work of the maintenance personnel. Moreover, the longer the tool holder is used, the smoother the side surface of the clamping arms that is in contact with the blade will be, the smaller the maximum static friction force between the blade and the clamping arms will be, and the blade will be more likely to be offset.

[0004] Therefore, there are still problems to be solved in the prior art. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a quick-release tool holder to prevent the blade from being offset.

[0006] To achieve the above-mentioned purpose, the quick-release tool holder according to the utility model comprises a handle body, a clamping piece, a locking cap, and a connecting piece. The clamping piece comprises at least a first clamping jaw and a second clamping jaw. The locking cap is arranged outside the clamping piece and is provided with a through hole through which the clamping piece can pass. The first clamping jaw has a first pressing surface for pressing against the blade in the width direction. The first clamping jaw and the second clamping jaw are arranged to move closer to each other under the gathering action of the locking cap to clamp the blade.

[0007] Preferably, the through hole is formed with a first tapered wall, the outer peripheral surface of the first clamping jaw is formed with a second tapered wall, and the first tapered wall and the second tapered wall are adapted to each other. When the first clamping jaw moves in the direction of contraction of the first tapered wall, the first pressing surface moves in the width direction of the blade.

[0008] Preferably, the quick-release tool holder further comprises a connecting piece connected with or integrally formed with the first clamping jaw. The handle body is provided with a threaded hole, and the connecting piece is at least partially located in the threaded hole. The connecting piece can move relative to the handle body.

[0009] Preferably, the outer peripheral surface of the connecting piece and the side wall of the threaded hole are formed with matching threads.

[0010] Preferably, the first clamping jaw is formed with a first inclined surface, and the first inclined surface forms the first pressing surface. The first pressing surface is used to abut against the side edge of the blade.

[0011] Preferably, the first clamping jaw is formed with a first groove, and the first pressing surface is formed in the first groove.

[0012] Preferably, the bottom of the first groove forms the first pressing surface.

[0013] Preferably, the first clamping jaw is formed with a second pressing surface for pressing against the thickness direction of the blade, and the side of the second pressing surface is formed with a pressing portion, and the first pressing surface is located in the pressing portion.

[0014] Preferably, the first clamping jaw and the second clamping jaw are the same, and the first clamping jaw and the second clamping jaw are centrally symmetric or axially symmetric.

[0015] Preferably, the clamping member further comprises a third clamping jaw, and the third clamping jaw is formed with a third pressing surface for pressing against the thickness direction of the blade.

[0016] The quick-release tool handle provided by the embodiment of the application is used for clamping a blade, and comprises a handle body, a clamping member comprising at least a first clamping jaw and a second clamping jaw, and a lock cap sleeved outside the clamping member and provided with a through hole for the clamping member to pass through; the clamping member can partially pass through the through hole and be gathered under the action of the through hole; the first clamping jaw is formed with a first pressing surface for pressing against the width direction of the blade; and the first clamping jaw and the second clamping jaw are used for being close to each other under the gathering action of the lock cap to clamp the blade. In this way, the blade is prevented from being deviated. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without any creative labor.

[0018] Figure 1 It is a schematic view of one embodiment of the quick-release tool handle of the present application;

[0019] Figure 2 It is an exploded view of one embodiment of the quick-release tool handle of the present application;

[0020] Figure 3 It is a schematic view of the clamped blade of one embodiment of the quick-release tool handle of the present application;

[0021] Figure 4 It is a sectional view of one embodiment of the quick-release tool handle of the present application;

[0022] Figure 5 It is an enlarged view of part A of Figure 4

[0023] Figure 6 ​It is one sectional view of the lock cap of the quick-release tool handle one embodiment of the utility model;

[0024] Figure 7 It is one schematic view of the first clamping jaw and the second clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0025] Figure 8 It is one schematic view of the first clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0026] Figure 9a It is another schematic view of the first clamping jaw and the second clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0027] Figure 9b It is one schematic view of the first clamping jaw and the second clamping jaw when starting to gather of the quick-release tool handle one embodiment of the utility model;

[0028] Figure 9c It is one schematic view of the first clamping jaw and the second clamping jaw when gathering of the quick-release tool handle one embodiment of the utility model;

[0029] Figure 9d It is one schematic view of the first clamping jaw and the second clamping jaw when clamping the blade of the quick-release tool handle one embodiment of the utility model;

[0030] Figure 10 It is another schematic view of the first clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0031] Figure 11 It is another schematic view of the first clamping jaw, the second clamping jaw and the third clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0032] Figure 12 It is another schematic view of the first clamping jaw and the second clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0033] Figure 13 It is one schematic view of the third clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0034] Figure 14 It is another schematic view of the first clamping jaw and the second clamping jaw of the quick-release tool handle one embodiment of the utility model;

[0035] Figure 15 It is another schematic view of the first clamping jaw of the quick-release tool handle one embodiment of the utility model.

[0036] Explanation of drawing reference numeral:

[0037]

[0038]

[0039] The purposes, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0042] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0043] During the maintenance of electronic equipment, blades are often used for maintenance. In order to facilitate maintenance personnel to replace the blades, the utility model patent CN220241355U proposes a quick-release blade handle, which realizes quick replacement of blades by loosening the clamping arms.

[0044] When the blade is clamped by the clamping arm, the blade is kept stationary by the static friction force between its side surface and the clamping arm. However, when the blade is subjected to an external force opposite to the direction of the static friction force and the size of the force is greater than the maximum static friction force, the blade will be offset, thereby affecting the maintenance work of the maintenance personnel. Moreover, the longer the use time is, the smoother the side surface of the clamping arm adhered to the blade is worn, the smaller the maximum static friction force between the blade and the clamping arm is, and the blade will be more easily offset.

[0045] In order to solve the above problems, the patent provides a quick-release blade handle, which aims to prevent the blade from being offset.

[0046] For the convenience of understanding, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3 , a quick-release handle for clamping a blade, comprising: a handle body 100 held by a user; a clamping member 200 for clamping a blade, the clamping member 200 comprising at least a first clamping jaw 210 and a second clamping jaw 220, the first clamping jaw 210 and the second clamping jaw 220 can be independent components or integrally formed components (such as integrally formed at the tail of the clamping jaw); a locking cap 300 is sleeved outside the clamping member 200, the locking cap 300 is provided with a through hole 310 for the clamping member 200 to pass through; the clamping member 200 can partially pass through the through hole 310 and can be gathered under the action of the through hole 310; the first clamping jaw 210 has a first pressing surface 211 for pressing the width direction 01 of the blade; the first clamping jaw 210 and the second clamping jaw 220 are used to approach each other under the gathering action of the locking cap 300 to clamp the blade. The clamping effect of the blade in this embodiment is achieved by pressing the blade along the width direction of the blade, and compared with the clamping effect of the blade achieved by simply pressing the blade along the thickness direction of the blade, the implementation of this embodiment directly presses the width direction of the blade, avoiding the offset of the blade. It should be noted that the "width direction of the blade" in this application does not refer to the direction parallel to the width of the blade, but the vector component after decomposition along the width direction of the blade, that is, it is not perpendicular to the width direction of the blade, that is, it can be parallel to the width direction of the blade, or it can have an angle less than 90 degrees with the width direction of the blade.

[0048] On the basis of the above implementation mode, the locking cap 300 has multiple implementation modes for gathering the clamping jaw, and the following implementation modes are provided in this embodiment. Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , the through hole 310 is formed with a first tapered wall 311, the outer peripheral surface of the first clamping jaw 210 is formed with a second tapered wall 212, and the first tapered wall 311 and the second tapered wall 212 are matched; when the first clamping jaw 210 moves in the direction of contraction of the first tapered wall 311, the first tapered wall 311 extrudes the second tapered wall 212, the first clamping jaw 210 gathers towards the blade, the first pressing surface 211 of the first clamping jaw 210 moves towards the width direction 01 of the blade, and the clamping effect of the blade is achieved.

[0049] Further, the first clamping jaw 210 can have multiple implementation modes, and the following implementation modes are provided in this embodiment. Please refer to Figure 2The quick-release handle further comprises a connecting piece 400 connected with or integrally formed with the first clamping jaw 210; the shank 100 is provided with a threaded hole 110, and the connecting piece 400 is at least partially screwed into the threaded hole 110, and the connecting piece 400 is movable relative to the shank 100. In this implementation, the first clamping jaw 210 moves synchronously with the connecting piece 400, and thus the movement of the first clamping jaw 210 can be realized by moving the connecting piece 400. Specifically, the connecting piece 400 comprises a threaded portion and a connecting portion, the outer circumferential surface of the threaded portion and the sidewall of the threaded hole 110 are formed with matching threads, and the connecting portion is used to connect and pull the clamping piece 200. The clamping piece 200 is sleeved in the lock cap 300, and the connecting piece 400 is connected with the clamping piece 200. The clamping piece 200 can be driven to rotate by screwing the lock cap 300, thereby driving the connecting piece 400 to rotate, realizing the up-and-down movement of the connecting piece 400 in the threaded hole 110, and thus realizing the up-and-down movement of the clamping piece 200 relative to the lock cap 300, achieving the purpose of locking and unlocking the blade.

[0050] It should be noted that the first abutting surface 211 abutting against the blade along the blade width direction 01 has various implementation manners, and the following implementation manners are provided in the present embodiment. Please refer to Figure 7 、 Figure 8 、 Figure 9a 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 14 and Figure 15 The first clamping jaw 210 is formed with a first inclined surface 213, and the first inclined surface 213 forms the first abutting surface 211, which is used to abut against the side edge of the blade. In this implementation, the force applied by the first abutting surface 211 can be divided into a component in the blade width direction 01 and a component in the blade thickness direction 02, and the component in the width direction prevents the blade from being offset in the width direction during clamping. The use of an inclined surface as the abutting surface can adapt to blades of different widths and thicknesses. The specific position of the side edge of the blade contacting the abutting surface is different when the width and thickness of the blade are different, but the abutting force is not affected, which can enhance the versatility of the handle.

[0051] On the basis of the above implementation, the first abutting surface 211 is arranged at various positions of the first clamping jaw 210, and the following implementation manners are provided in the present embodiment. Please refer to Figure 7 and Figure 8 The first clamping jaw 210 is formed with a first recess 214, and the first abutting surface 211 is formed in the first recess 214. When the blade is inserted into the first recess 214, the blade cannot or is not easy to be offset in the thickness direction 02 due to the limiting of the first recess 214, and meanwhile, when the blade is clamped, the blade cannot be offset in the width direction 01 due to the force provided by the first abutting surface 211 in the width direction 01 (including the component).

[0052] Further, please refer to Figure 7 and Figure 8 , the bottom of the first recess 214 forms a first pressing surface 211. This implementation can ensure that when the blade is clamped, the blade is embedded in the first recess 214, and the first recess 214 can play a limiting role. In this implementation, either the first inclined surface 213 at the bottom of the first recess 214 forms the first pressing surface 211, or the bottom surface of the bottom of the first recess 214 forms the first pressing surface 211.

[0053] It should be noted that there are other implementations of the first pressing surface 211 being provided on the first clamping jaw 210, and the following implementations are provided in this embodiment. Please refer to Figure 9a 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 14 and Figure 15 , the first clamping jaw 210 has a second pressing surface 215 for pressing the thickness direction 02 of the blade; the side edge of the second pressing surface 215 forms a pressing portion 216, and the first pressing surface 211 is located in the pressing portion 216. This implementation not only allows the first pressing surface 211 to provide the blade with a force in the width direction (including a component), but also allows the second pressing surface 215 to provide the blade with a force in the thickness direction, so that the blade is clamped more firmly, and it can be ensured that the blade will not be deformed in arch even under a large clamping force. It should be noted that in this implementation, the gathering of the first clamping jaw 210 and the second clamping jaw 220 can be directly from Figure 9b to Figure 9d , or first from Figure 9b to Figure 9c , and then to Figure 9d , both of the above two gathering methods can allow the blade to be subjected to a force in the width direction (including a component) and a force in the thickness direction, and at the same time, the blade will not be deformed in arch even under a large clamping force.

[0054] On the basis of the above implementation, please refer to Figure 9a , the first clamping jaw 210 and the second clamping jaw 220 are the same, and the first clamping jaw 210 and the second clamping jaw 220 are centrally symmetrically arranged. This implementation can make the blade be subjected to a clamping force in the width and thickness directions, and the blade can be stably clamped. In addition, please refer to Figure 11 , the first clamping jaw 210 and the second clamping jaw 220 can also be symmetrically arranged about an axis, so that the blade can be subjected to a clamping force in the width direction, and on this basis, please refer to Figure 11 and Figure 13The clamping member 200 further comprises a third clamping jaw 230, which has a third pressing surface 231 for pressing against the thickness direction 02 of the blade. This implementation also enables the blade to be clamped in both the width and thickness directions, and the blade can be stably clamped.

[0055] In addition, referring to Figure 7 In the implementation in which the first pressing surface 211 is located in the first recess 214 formed on the first clamping jaw 210, the implementation in which the first clamping jaw 210 and the second clamping jaw 220 are the same and are arranged in axial symmetry enables the blade to be clamped in the width direction without the blade being inclined or being prone to being inclined, because the blade is inserted into the first recess 214 of the first clamping jaw 210 and the second clamping jaw 220 at both ends, and the limiting action of the first recess 214 simultaneously acts on both ends of the blade.

[0056] In summary, the quick-release tool handle provided by the embodiments of the present application is used for clamping a blade, and comprises a handle body 100, a clamping member 200, and a locking cap 300. The clamping member 200 comprises at least a first clamping jaw 210 and a second clamping jaw 220. The locking cap 300 is arranged outside the clamping member 200 and is provided with a through hole 310 through which the clamping member 200 passes. The clamping member 200 can partially pass through the through hole 310 and can be gathered under the action of the through hole 310. The first clamping jaw 210 has a first pressing surface 211 for pressing against the width direction 01 of the blade. The first clamping jaw 210 and the second clamping jaw 220 are arranged to be close to each other under the gathering action of the locking cap 300 to clamp the blade. In this way, the blade is prevented from being offset.

[0057] The above description is merely preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A quick-release knife holder for holding a knife blade, characterized in that, include: Handle; A clamping member, the clamping member comprising at least a first jaw and a second jaw; A locking cap is fitted over the outside of the clamping member, and the locking cap has a through hole through which the clamping member passes; the clamping member can partially pass through the through hole and can be brought together by the action of the through hole; The first jaw has a first pressing surface for pressing against the blade in the width direction; the first jaw and the second jaw are used to move closer to each other under the closing action of the locking cap to clamp the blade.

2. The quick-release tool holder as described in claim 1, characterized in that, The through hole is formed with a first conical wall, and the outer peripheral surface of the first gripper is formed with a second conical wall, the first conical wall and the second conical wall being adapted to each other; When the first gripper moves in the direction of contraction of the first conical wall, the first pressing surface moves in the direction of the blade width.

3. The quick-release tool holder as described in claim 2, characterized in that, The quick-release handle also includes a connector, which is connected to or integrally formed with the first gripper. The handle is provided with a screw hole, and the connector is at least partially screwed into the screw hole. The connector is movable relative to the handle.

4. The quick-release tool holder as described in claim 3, characterized in that, The connector includes a threaded part and a connecting part. The outer peripheral surface of the threaded part and the side wall of the threaded hole are formed with matching threads. The connecting part is used to connect to and pull the clamping member.

5. The quick-release tool holder as described in claim 1, characterized in that, The first gripper has a first inclined surface, which forms the first pressing surface, and the first pressing surface is used to abut against the side edge of the blade.

6. The quick-release tool holder as described in any one of claims 1 to 5, characterized in that, A first groove is formed on the first gripper, and the first pressing surface is formed in the first groove.

7. The quick-release tool holder as described in claim 6, characterized in that, The bottom of the first groove forms the first pressing surface.

8. The quick-release tool holder as described in any one of claims 1 to 5, characterized in that, The first gripper has a second pressing surface for pressing against the blade in the thickness direction; The second pressing surface has a pressing portion formed on its side, and the first pressing surface is located in the pressing portion.

9. The quick-release tool holder as described in any one of claims 1-5, characterized in that, The first gripper and the second gripper are the same, and the first gripper and the second gripper are arranged symmetrically at the center or symmetrically at the axis.

10. The quick-release tool holder as described in claim 8, characterized in that, The clamping member further includes a third jaw, which has a third pressing surface for pressing against the blade in the thickness direction.

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