Quick disassembly and assembly structure and drill bit

Abstract

The utility model discloses a quick disassembly and assembly structure and a drill bit, and relates to the technical field of quick disassembly structures, the quick disassembly and assembly structure comprises a first connecting piece, a second connecting piece and a third connecting piece, the first connecting piece is provided with a groove, a first positioning groove and a second positioning groove which are communicated with one another; the second connecting piece is sleeved outside the first connecting piece; a convex part matched with the first positioning groove is arranged on the second connecting piece; the outer sleeve assembly is sleeved outside the first connecting piece in an elastic movable limiting manner; the pin body is fixedly connected with the outer sleeve assembly, and the pin body is movably matched with the second positioning groove. The utility model has the technical effect that the dismounting and mounting speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-disassembly structures, in particular to a quick-disassembly structure and a drill bit. Background Art

[0002] The disassembly and assembly structure is a structure that is easy to disassemble and assemble, and has the advantage of being easy to replace connecting parts. It is widely used in products such as drill bits and wrenches.

[0003] However, the slow disassembly and assembly speed of the relevant disassembly and assembly structure may easily lead to a slow replacement speed of the relevant connecting parts, thereby resulting in low replacement efficiency of the relevant connecting parts. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a quick disassembly and assembly structure and a drill bit, which have a fast disassembly and assembly speed.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A quick disassembly and assembly structure, comprising:

[0007] A first connecting member, wherein the first connecting member is provided with a groove, a first positioning groove and a second positioning groove which are interconnected;

[0008] A second connecting member sleeved on the outside of the first connecting member, the second connecting member being provided with a convex portion cooperating with the first positioning groove;

[0009] A jacket component elastically and movablely limitedly sleeved on the outside of the first connecting member;

[0010] A pin body fixedly connected to the jacket assembly, the pin body and the second positioning groove movably cooperate with each other.

[0011] Optionally, the jacket assembly includes:

[0012] A jacket body movably sleeved on the outside of the first connecting member, wherein the pin body is fixedly connected to the jacket body;

[0013] A limiting piece sleeved on the outside of the first connecting member;

[0014] An elastic member is sleeved on the outside of the first connecting member, one end of the elastic member is in contact with the pin body, and the other end of the elastic member is in contact with the limiting piece.

[0015] Optionally, also include:

[0016] a third positioning groove disposed outside the first connecting member;

[0017] a retaining spring located in the third positioning groove;

[0018] Wherein, the clamping spring contacts a side of the limiting plate away from the elastic member.

[0019] Optionally, it further includes a first receiving hole provided on the sleeve body, and the pin body and the first receiving hole are interference fit.

[0020] Optionally, also include:

[0021] a first step portion disposed outside the first connecting member;

[0022] A second step portion disposed within the outer jacket body;

[0023] Wherein, the first step portion and the second step portion cooperate with each other.

[0024] A drill bit, comprising a quick disassembly structure, and further comprising:

[0025] a knife handle connected to an end of the first connecting member away from the second connecting member;

[0026] A blade is connected to an end of the second connecting member away from the first connecting member.

[0027] Optionally, also include:

[0028] A center drill detachably connected to the first connecting member, wherein the center drill is located in the second connecting member;

[0029] A fastener threadedly connected to the first connecting member, the fastener being in contact with the pilot drill.

[0030] Optionally, it further includes a second accommodating hole and a threaded hole both provided on the first connecting member, the center drill is detachably connected to the second accommodating hole, and the fastener is threadedly connected to the threaded hole.

[0031] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: the quick disassembly and assembly structure facilitates quick disassembly and assembly through the cooperation between the first positioning groove and the protrusion, and the cooperation between the second positioning groove and the pin body. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is one of the cross-sectional views of a drill bit proposed in an embodiment of the utility model;

[0033] Figure 2 The second cross-sectional view of a drill bit provided in an embodiment of the utility model;

[0034] Figure 3 A schematic diagram of the structure of a first connecting member proposed in an embodiment of the utility model;

[0035] Figure 4A schematic diagram of the structure of the second connecting member proposed in an embodiment of the utility model;

[0036] In the figure: 1. first connecting member; 11. first positioning groove; 12. second positioning groove; 13. third positioning groove; 14. groove; 15. first step portion; 16. second receiving hole; 17. threaded hole; 2. second connecting member; 21. protrusion; 3. jacket assembly; 31. jacket body; 311. first receiving hole; 312. second step portion; 32. limiting plate; 33. elastic member; 34. retaining spring; 4. pin body; 5. handle; 6. blade. DETAILED DESCRIPTION

[0037] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0038] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0039] Example 1

[0040] Combined with Figure 1-4 , this embodiment provides a quick disassembly and assembly structure, including:

[0041] A first connecting member 1, wherein the first connecting member 1 is provided with a groove 14, a first positioning groove 11 and a second positioning groove 12 which are interconnected;

[0042] A second connecting member 2 sleeved on the outside of the first connecting member 1, wherein the second connecting member 2 is provided with a protrusion 21 that matches the first positioning groove 11;

[0043] A jacket component 3 elastically and movablely limitedly sleeved on the outside of the first connecting member 1;

[0044] The pin body 4 is fixedly connected to the jacket assembly 3 , and the pin body 4 and the second positioning groove 12 are movably matched.

[0045] Specifically, during installation, first compress the sleeve component 3, and the sleeve component 3 drives the pin body 4 to move along the second positioning groove 12; then, the second connecting member 2 is sleeved on the outside of the first connecting member 1, and the protrusion 21 is moved through the groove 14; then, the second connecting member 2 is rotated toward the first positioning groove 11, and the second connecting member 2 drives the protrusion 21 to rotate toward the first positioning groove 11, until the protrusion 21 and the first positioning groove 11 are matched; finally, release the sleeve component 3, and the sleeve component 3 drives the pin body 4 to reset toward the second connecting member 2, so that the pin body 4 is stuck on the edge of the protrusion 21, thereby realizing the axial and circumferential limitation of the quick disassembly and assembly structure, thereby completing the quick disassembly and assembly. Installation; during disassembly, first compress the sleeve assembly 3 away from the second connecting member 2, and the sleeve assembly 3 drives the pin body 4 to move along the second positioning groove 12, so that the pin body 4 and the edge of the protrusion 21 are separated; then rotate the second connecting member 2 away from the first positioning groove 11, and the second connecting member 2 drives the protrusion 21 to rotate away from the first positioning groove 11 until the protrusion 21 and the first positioning groove 11 are separated; finally, move the second connecting member 2 away from the first connecting member 1 to complete the quick disassembly; in summary, the quick disassembly and assembly structure facilitates quick disassembly and assembly through the cooperation of the first positioning groove 11 and the protrusion 21, and the cooperation of the second positioning groove 12 and the pin body 4.

[0046] Among them, the first connecting member 1 and the second connecting member 2 can be a part of a drill bit or a part of a wrench, etc., which is equivalent to that the quick disassembly and assembly structure can be used in products such as drill bits and wrenches; the groove 14 is convenient for accommodating the protrusion 21 to prevent the protrusion 21 from interfering with the first connecting member 1; the sleeve assembly 3 can specifically include a sleeve body 31, a limit plate 32 and an elastic member 33, etc.; the pin body 4 can be a cylindrical pin, a conical pin, etc., preferably a cylindrical open pin, so that the pin body 4 and the sleeve assembly 3 can achieve an interference fit, that is, a fixed connection.

[0047] Further, such as Figure 1, the jacket component 3 comprises:

[0048] A jacket body 31 movably sleeved on the outside of the first connecting member 1, and the pin body 4 and the jacket body 31 are fixedly connected;

[0049] A limiting piece 32 sleeved on the outside of the first connecting member 1;

[0050] The elastic member 33 is sleeved on the outside of the first connecting member 1 , and one end of the elastic member 33 contacts the pin body 4 , and the other end of the elastic member 33 contacts the limiting piece 32 .

[0051] Specifically, the pin body 4 and the limiting plate 32 are used to jointly limit the elastic member 33; the elastic member 33 facilitates the elastic compression and elastic reset of the jacket assembly 3, and the elastic member 33 can be a pagoda spring or an ordinary spring, preferably a pagoda spring.

[0052] Further, such as Figure 1 and 3 , also includes:

[0053] A third positioning groove 13 provided outside the first connecting member 1;

[0054] A retaining spring 34 located in the third positioning groove 13;

[0055] The clamping spring 34 contacts a side of the limiting piece 32 away from the elastic member 33 .

[0056] Specifically, the third positioning groove 13 is used to accommodate the clamping spring 34 , and the clamping spring 34 is used to limit the limiting piece 32 , thereby limiting the elastic member 33 .

[0057] Further, such as Figure 1 , and also includes a first accommodating hole 311 provided on the sleeve body 31, and the pin body 4 and the first accommodating hole 311 are interference fit.

[0058] Further, such as Figure 1 , also includes:

[0059] A first step portion 15 provided outside the first connecting member 1;

[0060] A second step portion 312 disposed in the jacket body 31;

[0061] The first step portion 15 and the second step portion 312 cooperate with each other.

[0062] Specifically, the first step portion 15 cooperates with the second step portion 312 to facilitate axial positioning of the first connector 1 and the jacket body 31 and to facilitate the jacket body 31 to cover the second positioning groove 12 on the first connector 1, thereby improving safety in use.

[0063] Example 2

[0064] Combined with Figure 1-4 This embodiment provides a drill bit, including a quick disassembly structure as in Embodiment 1, and further including:

[0065] A knife handle 5 connected to an end of the first connecting member 1 away from the second connecting member 2;

[0066] A blade 6 is connected to an end of the second connecting member 2 away from the first connecting member 1 .

[0067] Specifically, the tool handle 5 is used to connect with relevant drilling equipment, so as to facilitate the connection of the drill bit with the relevant drilling equipment; the blade 6 is used for hole processing.

[0068] Further, such as Figure 1-2 , also includes:

[0069] A center drill detachably connected to the first connecting member 1, the center drill being located in the second connecting member 2;

[0070] The fastener is threadedly connected to the first connecting member 1, and the fastener is in contact with the pilot drill.

[0071] Specifically, the center drill is used for centering to ensure the hole processing accuracy of the drill bit; the fastener is used to limit the center drill axially and circumferentially.

[0072] Further, such as Figure 1-2 , and also includes a second accommodating hole 16 and a threaded hole 17 both provided on the first connecting member 1 , the center drill is detachably connected to the second accommodating hole 16 , and the fastener and the threaded hole 17 are threadedly connected.

[0073] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A quick disassembly and assembly structure, characterized in that: include: A first connecting member, wherein the first connecting member is provided with a groove, a first positioning groove and a second positioning groove which are interconnected; A second connecting member sleeved on the outside of the first connecting member, the second connecting member being provided with a convex portion cooperating with the first positioning groove; A jacket component elastically and movablely limitedly sleeved on the outside of the first connecting member; A pin body fixedly connected to the jacket assembly, the pin body and the second positioning groove movably cooperate with each other.

2. A quick disassembly and assembly structure according to claim 1, characterized in that: The outer jacket assembly comprises: A jacket body movably sleeved on the outside of the first connecting member, wherein the pin body is fixedly connected to the jacket body; A limiting piece sleeved on the outside of the first connecting member; An elastic member is sleeved on the outside of the first connecting member, one end of the elastic member is in contact with the pin body, and the other end of the elastic member is in contact with the limiting piece.

3. A quick disassembly and assembly structure according to claim 2, characterized in that: Also includes: a third positioning groove disposed outside the first connecting member; a retaining spring located in the third positioning groove; Wherein, the clamping spring contacts a side of the limiting plate away from the elastic member.

4. A quick disassembly and assembly structure according to claim 2, characterized in that: It also includes a first receiving hole provided on the sleeve body, and the pin body and the first receiving hole are interference fit.

5. The quick disassembly and assembly structure according to claim 2, characterized in that: Also includes: a first step portion disposed outside the first connecting member; A second step portion disposed within the outer jacket body; Wherein, the first step portion and the second step portion cooperate with each other.

6. A drill bit, characterized in that: The quick disassembly and assembly structure comprises any one of claims 1 to 5, and further comprises: a knife handle connected to an end of the first connecting member away from the second connecting member; A blade is connected to an end of the second connecting member away from the first connecting member.

7. A drill bit according to claim 6, characterized in that: Also includes: A center drill detachably connected to the first connecting member, wherein the center drill is located in the second connecting member; A fastener threadedly connected to the first connecting member, the fastener being in contact with the pilot drill.

8. A drill bit according to claim 7, characterized in that: It also includes a second accommodating hole and a threaded hole both provided on the first connecting member, the center drill is detachably connected to the second accommodating hole, and the fastener is threadedly connected to the threaded hole.

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