Clamping structure and handheld tool set

Abstract

The utility model provides a clamping structure and a handheld tool kit, the clamping structure comprises a first clamping structure arranged on a first connecting piece and a second clamping structure arranged on a second connecting piece, and the first connecting piece and the second connecting piece are detachably connected through cooperation of the clamping structures; the first clamping structure comprises at least one clamping hook and at least one first circumferential limiting piece; the second clamping structure comprises a limiting clamping piece and a telescopic lantern ring, the limiting clamping piece is connected to the connecting end of the second connecting piece, the limiting clamping piece is provided with a second circumferential limiting piece corresponding to the first circumferential limiting piece, and a clamping groove corresponding to the clamping hook is formed in the side face of the limiting clamping piece; the telescopic lantern ring is arranged on the limiting clamping piece and the second connecting piece in a sleeving mode and can move back and forth on the limiting clamping piece. The clamping structure can be applied to the switching accessory and the handheld tool, so that a user can directly operate the handheld tool without holding the switching accessory, and the operation is simple and convenient.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of hand tools, in particular to a clamping structure and a hand tool set. BACKGROUND

[0002] Hand tools (such as electric screwdrivers, electric drills, electric drivers, etc.) are widely used in industrial manufacturing, home repair, construction, etc. due to their portability, high efficiency and multifunctionality.

[0003] In the related art, in order to expand the functions of the hand tools, an adapter accessory is usually connected to the output end of the hand tool, and the adapter accessory includes a blowing accessory with a blowing function, a grinding accessory with a function of grinding coffee, pepper and salt, seasoning, etc., a bottle opening accessory with a function of opening a red wine bottle, etc. However, some adapter accessories (such as the grinding accessory and the bottle opening accessory) are connected to the hand tool in a simple docking manner, and the user needs to manually fix the connection between the adapter accessory and the hand tool during operation. This connection mode is not convenient for the operation of the adapter accessory. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a clamping structure and a hand tool set to solve the technical problem that some adapter accessories are connected to the hand tool in a simple docking manner, and the operation of the adapter accessory is inconvenient.

[0005] The embodiment of the present application provides the following technical solutions to solve the above technical problem:

[0006] The embodiment of the present application provides a clamping structure, which comprises a first clamping structure arranged on a first connecting piece and a second clamping structure arranged on a second connecting piece, and the first connecting piece and the second connecting piece are detachably connected through cooperation of the first clamping structure and the second clamping structure.

[0007] The first clamping structure comprises at least one clamping hook and at least one first circumferential limiting piece.

[0008] The second clamping structure comprises a limiting clamping piece and a telescopic sleeve ring, the limiting clamping piece is connected to a connecting end of the second connecting piece, the limiting clamping piece is provided with a second circumferential limiting piece corresponding to the first circumferential limiting piece, and the side surface of the limiting clamping piece is provided with a clamping groove corresponding to the clamping hook; the telescopic sleeve ring is sleeved on the limiting clamping piece and the second connecting piece, and can move back and forth on the limiting clamping piece.

[0009] When the first connecting member and the second connecting member are connected, the hook body of the hook is hooked on the side wall of the clamping groove, the first circumferential limiting member and the second circumferential limiting member cooperatively limit the relative position of the first connecting member and the second connecting member in the circumferential direction, and the telescopic sleeve ring covers the hook body to limit the hook body from moving out of the clamping groove.

[0010] The clamping structure provided by the embodiment of the application can be arranged on the adapter accessory and the handheld tool, and the detachable connection of the adapter accessory and the handheld tool is achieved. After the adapter accessory and the handheld tool are clamped through the clamping structure, the user can directly operate the handheld tool without holding the adapter accessory, and the operation is simple and convenient.

[0011] In a possible implementation, the first circumferential limiting member is a first limiting protrusion, the first limiting protrusion is arranged on the connecting end surface of the first connecting member, and the first limiting protrusion is provided with a first limiting groove.

[0012] The second circumferential limiting member is a second limiting protrusion arranged on the side surface of the limiting clamping member.

[0013] When the first connecting member and the second connecting member are connected, the second limiting protrusion extends into the first limiting groove.

[0014] In a possible implementation, the first connecting member has a driven shaft matched with the output structure of the second connecting member.

[0015] The first limiting protrusion and the hook form an arc or a circle, and the arc or the circle is coaxial with the driven shaft.

[0016] In a possible implementation, the number of the first limiting protrusions and the number of the hooks are both three, and the first limiting protrusions and the hooks are arranged alternately.

[0017] In a possible implementation, the hook includes a transverse connecting part, a vertical connecting part, and a hook body, one end of the vertical connecting part is connected to the transverse connecting part, the other end of the vertical connecting part is provided with the hook body, the transverse connecting part is connected to the first connecting member, and the vertical connecting part has a movement allowance in the depth direction corresponding to the clamping groove.

[0018] In a possible implementation, the second clamping structure includes a reset member, and the reset member is configured to reset the telescopic sleeve ring to cover the hook body when the telescopic sleeve ring moves to uncover the hook body.

[0019] In a possible implementation, the connecting end is provided with a first blocking platform; the side close to the connecting end of the limiting clamping piece is provided with a second blocking platform; the inner side wall of the telescopic sleeve ring is provided with a third blocking platform;

[0020] The third blocking platform is located between the first blocking platform and the second blocking platform, and the second blocking platform blocks the third blocking platform to achieve the blocking of the telescopic sleeve ring from the limiting clamping piece and the connecting end;

[0021] The reset piece is arranged between the third blocking platform and the first blocking platform, and the third blocking platform compresses the reset piece when the telescopic sleeve ring moves in a direction away from the first connecting piece;

[0022] The reset piece is an elastic piece.

[0023] In a possible implementation, the connecting end segment between the first blocking platform and the second blocking platform is provided with a limiting convex strip, and the limiting convex strip extends in the moving direction of the telescopic sleeve ring;

[0024] The third blocking platform is provided with a second limiting groove corresponding to the limiting convex strip, the limiting convex strip penetrates the second limiting groove, the third blocking platform moves back and forth along the limiting convex strip, and the limiting convex strip limits the position of the third blocking platform in the circumferential direction.

[0025] The embodiments of the present application also provide a hand tool set, which comprises a hand tool and at least one adapter accessory, and the adapter accessory and the hand tool are detachably connected through a clamping structure;

[0026] The clamping structure is the clamping structure in any of the above solutions.

[0027] The hand tool is the first connecting piece, and the adapter accessory is the second connecting piece, or the hand tool is the second connecting piece, and the adapter accessory is the first connecting piece.

[0028] In a possible implementation, the hand tool is a straight handle structure.

[0029] The hand tool set provided by the embodiments of the present application has the same beneficial effects as the clamping structure described above, and details are not repeated here.

[0030] In addition to the technical problems solved by the present application, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features, other technical problems solved by the present application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application, together with the description.

[0032] Figure 1 Schematic view of the first connecting member and the second connecting member connected in the embodiment of the present application;

[0033] Figure 2 Schematic view of the first connecting member in the embodiment of the present application;

[0034] Figure 3 Schematic view of the second connecting member in the embodiment of the present application;

[0035] Figure 4 Schematic view of the second connecting member without the telescopic sliding sleeve in the embodiment of the present application;

[0036] Figure 5 Partial sectional view of the first connecting member and the second connecting member connected in the embodiment of the present application;

[0037] Figure 6 Schematic view of the telescopic sleeve ring in the embodiment of the present application.

[0038] Explanation of reference signs:

[0039] 100, first connecting member;

[0040] 110, driven shaft;

[0041] 200, second connecting member;

[0042] 210, output structure; 220, first blocking platform; 230, limiting protrusion;

[0043] 300, first clamping structure;

[0044] 310, clamping hook; 320, first circumferential limiting member;

[0045] 311, hook body; 312, vertical connecting part; 313, transverse connecting part;

[0046] 321, first limiting groove;

[0047] 400, second clamping structure;

[0048] 410, limiting clamping piece; 420, telescopic sleeve ring; 430, reset piece;

[0049] 411, clamping groove; 412, second circumferential limiting piece; 413, second blocking table;

[0050] 421, third blocking table; 422, second limiting groove.

[0051] Through the above drawings, the specific embodiments of the present application have been shown, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative labor fall within the scope of protection of the present application.

[0053] The card joint structure provided by the embodiments of the present application is arranged on the first connecting piece and the second connecting piece to realize detachable connection of the first connecting piece and the second connecting piece. Exemplarily, the first connecting piece of the embodiments of the present application can be a handheld tool, and exemplarily, the handheld tool is an electric screwdriver. When the first connecting piece is a handheld tool, the second connecting piece can be an adapter accessory, for example, a blowing accessory, a grinding accessory, a bottle opening accessory, an angle type end accessory, an eccentric type end accessory, a grinder type end accessory, etc. The first connecting piece can also be other objects, and the second connecting piece is an object that needs to be detachably connected with the first connecting piece.

[0054] As shown in Figure 1 , Figure 2 and Figure 3 , the card joint structure provided by the embodiments of the present application includes a first card joint structure 300 arranged on a first connecting piece 100 and a second card joint structure 400 arranged on a second connecting piece 200, and the first connecting piece 100 and the second connecting piece 200 realize detachable connection through cooperation of the first card joint structure 300 and the second card joint structure 400.

[0055] As shown in Figure 2 , the first card joint structure 300 includes at least one clamping hook 310 and at least one first circumferential limiting piece 320. As shown in Figure 3 , Figure 4 and Figure 5As shown, the second clamping structure 400 includes a limiting clamping piece 410 and a telescopic sleeve ring 420. The limiting clamping piece 410 is connected to the connecting end of the second connecting piece 200. The limiting clamping piece 410 is provided with a second circumferential limiting piece 412 corresponding to the first circumferential limiting piece 320. The side surface of the limiting clamping piece 410 is provided with a clamping groove 411 corresponding to the clamping hook 310. That is, the number of the second circumferential limiting piece 412 is the same as that of the first circumferential limiting piece 320, and they are one-to-one corresponding. The number of the clamping groove 411 is the same as that of the clamping hook 310, and they are one-to-one corresponding. The telescopic sleeve ring 420 is sleeved on the limiting clamping piece 410 and the second connecting piece 200, and can move back and forth on the limiting clamping piece 410. When the first connecting piece 100 and the second connecting piece 200 are connected, the hook body 311 of the clamping hook 310 is hooked on the side wall of the clamping groove 411. The first circumferential limiting piece 320 and the second circumferential limiting piece 412 cooperate to limit the relative position of the first connecting piece 100 and the second connecting piece 200 in the circumferential direction. The telescopic sleeve ring 420 covers the hook body 311 to limit the hook body 311 from moving out of the clamping groove 411. That is, when the first connecting piece 100 and the second connecting piece 200 are connected, the telescopic sleeve ring 420 moves to expose the part of the clamping groove 411 where the hook body 311 is installed. Then the hook body 311 of the clamping hook 310 is hooked on the clamping groove 411. The first circumferential limiting piece 320 and the second circumferential limiting piece 412 cooperate. The telescopic sleeve ring 420 is reset to cover the hook body 311. The telescopic sleeve ring 420 limits the position of the hook body 311 so that it cannot move out of the clamping groove 411. Thus, the first connecting piece 100 and the second connecting piece 200 cannot move away from each other in the direction. The first connecting piece 100 and the second connecting piece 200 cannot relatively move in the circumferential direction under the cooperation of the first circumferential limiting piece 320 and the second circumferential limiting piece 412, that is, the first connecting piece 100 and the second connecting piece 200 cannot relatively rotate.

[0056] The clamping structure provided by the embodiments of the present application can be arranged on the adapter accessory and the handheld tool to achieve detachable connection of the adapter accessory and the handheld tool. After the adapter accessory and the handheld tool are clamped through the clamping structure, the user can directly operate the handheld tool without holding the adapter accessory, and the operation is simple and convenient. In addition, the clamping structure provided by the embodiments of the present application is simple in structure, convenient for production and assembly, and the first connecting piece 100 and the second connecting piece 200 connected by using the clamping structure are convenient for connection and disconnection.

[0057] In some embodiments of the present application, the first circumferential limiting member 320 is a first limiting protrusion, the first limiting protrusion is arranged on the connecting end surface of the first connecting member 100, and the first limiting protrusion is provided with a first limiting groove 321. The second circumferential limiting member 412 is a second limiting protrusion arranged on the side surface of the limiting clamping member 410. When the first connecting member 100 and the second connecting member 200 are connected, the second limiting protrusion extends into the first limiting groove 321. That is, the second limiting protrusion blocks the first limiting protrusion from rotating to the left or to the right, and when the first connecting member 100 rotates along the circumferential direction (the direction around the axial direction of the driven shaft 110) of the first connecting member 100, the side wall of the first limiting groove 321 abuts against the second limiting protrusion, thereby blocking the rotation of the first connecting member 100 relative to the second connecting member 200. The clamping groove 411 and the second circumferential limiting member 412 are both arranged on the side surface of the limiting clamping member 410, which facilitates the machining of the side surface of the limiting clamping member 410.

[0058] In some embodiments of the present application, the first connecting member 100 has a driven shaft 110 matched with the output structure 210 of the second connecting member 200, that is, the first connecting member 100 has the driven shaft 110, and the first connecting member 100 has the output structure 210 which drives the rotation of the driven shaft 110. For the second connecting member 200 with a rotary output, in order to ensure the coaxiality of the rotary outputs of the second connecting member 200 and the first connecting member 100 and reduce the influence of rotation on the connection stability of the first connecting member 100 and the second connecting member 200, the first limiting protrusion and the clamping hook 310 form an arc or a circle, and the arc or the circle is coaxial with the driven shaft 110.

[0059] For example, the number of the first limiting protrusions and the number of the clamping hooks 310 are both three, the three first limiting protrusions and the three clamping hooks 310 form a circle, and the three first limiting protrusions and the three clamping hooks 310 are arranged alternately. This arrangement can enable the first connecting member 100 and the second connecting member 200 to be stably clamped together and uniformly stressed.

[0060] For example, as shown in FIG. 6, the first limiting protrusion and the clamping hook 310 are arranged on the connecting end surface of the first connecting member 100. Figure 5As shown, the hook 310 comprises a horizontal connecting part 313, a vertical connecting part 312 and a hook body 311, one end of the vertical connecting part 312 is connected to the horizontal connecting part 313, the other end of the vertical connecting part 312 is provided with the hook body 311, the horizontal connecting part 313 is connected to the first connecting member 100, and the vertical connecting part 312 has a certain activity allowance in the depth direction of the clamping groove 411. That is, the vertical connecting part 312 can be deformed to a certain extent, when the first connecting member 100 is clamped with the second connecting member 200, the vertical connecting part 312 is deformed to make the hook body 311 move into the clamping groove 411, at this time the vertical connecting part 312 restores the deformation to make the hook body 311 extend into the clamping groove 411 and cooperate with the side wall of the clamping groove 411 close to the first connecting member 100, the side wall of the clamping groove 411 close to the first connecting member 100 blocks the hook body 311 from moving away from the second connecting member 200. After the hook 310 is hooked into the clamping groove 411, the telescopic sleeve ring 420 covers the hook body 311, and the telescopic sleeve ring 420 blocks the vertical connecting part 312 from deforming, so that the hook body 311 cannot be removed from the clamping groove 411.

[0061] In some embodiments of the present application, the second clamping structure 400 comprises a reset member 430, which is configured to reset the telescopic sleeve ring 420 to cover the hook body 311 when the telescopic sleeve ring 420 moves to uncover the hook body 311. That is, the initial position of the telescopic sleeve ring 420 is to cover the hook body 311, when the first connecting member 100 and the second connecting member 200 are connected, the telescopic sleeve ring 420 is first moved to expose the part of the clamping groove 411 where the hook body 311 is installed, then the hook body 311 is clamped into the clamping groove 411, and then the telescopic sleeve ring 420 is reset to cover the hook body 311. The reset member 430 facilitates the resetting of the telescopic sleeve ring 420 and facilitates the operation of the clamping structure.

[0062] For example, the reset member 430 is an elastic member. For example, the reset member 430 is a spring.

[0063] As Figure 4 , Figure 5 and Figure 6As shown, the connecting end of the second connecting member 200 is provided with a first blocking platform 220. Exemplarily, the connecting end is provided with a one-step ladder-shaped structure. The radial dimension of the section of the connecting end connected to the limiting clamping member 410 is smaller, and the step surface forms the first blocking platform 220. The side of the limiting clamping member 410 close to the connecting end is provided with a second blocking platform 413, and the inner side wall of the telescopic sleeve ring 420 is provided with a third blocking platform 421. The third blocking platform 421 is located between the first blocking platform 220 and the second blocking platform 413, and the second blocking platform 413 blocks the third blocking platform 421, so as to block the telescopic sleeve ring 420 from being separated from the limiting clamping member 410 and the connecting end. The connecting end of the limiting clamping member 410 and the second connecting member 200 are detachably connected, which facilitates the installation of the telescopic sleeve ring 420. The reset member 430 is arranged between the third blocking platform 421 and the first blocking platform 220. When the telescopic sleeve ring 420 moves away from the first connecting member 100, the third blocking platform 421 compresses the reset member 430.

[0064] In order to limit the position of the telescopic sleeve ring 420 in the circumferential direction of the second connecting member 200, so that the telescopic sleeve ring 420 can only move along the length direction of the second connecting member 200, the connecting end section located between the first blocking platform 220 and the second blocking platform 413 is provided with a limiting protruding strip 230. The limiting protruding strip 230 extends in the moving direction of the telescopic sleeve ring 420. The third blocking platform 421 is provided with a second limiting groove 422 corresponding to the limiting protruding strip 230. The limiting protruding strip 230 penetrates through the second limiting groove 422. The third blocking platform 421 moves back and forth along the limiting protruding strip 230, and the limiting protruding strip 230 limits the position of the third blocking platform 421 in the circumferential direction.

[0065] The embodiments of the present application also provide a hand tool set, which comprises a hand tool and at least one adapter accessory. The adapter accessory and the hand tool are detachably connected through the clamping structure. The clamping structure is any one of the clamping structures described above. The hand tool is the first connecting member 100, and the adapter accessory is the second connecting member 200, or the hand tool is the second connecting member 200, and the adapter accessory is the first connecting member 100. That is, the first clamping structure 300 can be arranged on the first connecting member 100 or the second connecting member 200. When the first clamping structure 300 is arranged on the first connecting member 100, the second clamping structure 400 is arranged on the second connecting member 200. When the second clamping structure 400 is arranged on the first connecting member 100, the first clamping structure 300 is arranged on the second connecting member 200.

[0066] Exemplarily, in some embodiments of the present application, the hand tool is an electric screwdriver, and the adapter accessory is a blowing accessory, a grinding accessory, a bottle opener, an angle end accessory, an eccentric end accessory, a sander end accessory, etc.

[0067] In some embodiments of the present application, the hand tool is a straight shank structure. When the hand tool is a straight shank structure, for example, the electric screwdriver is a straight shank electric screwdriver, the electric screwdriver can be placed on a table to automatically grind coffee when the electric screwdriver is used with the coffee grinding accessory.

[0068] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0069] It is to be understood that the application is not limited to the precise details of design or construction that have been described above and illustrated in the drawings. Various modifications and changes can be made thereunto without departing from the scope of the application. The scope of the application is indicated by the appended claims, rather than by the foregoing description.

Claims

1. A snap-fit structure, characterized by, The clamping structure comprises a first clamping structure arranged on the first connecting member and a second clamping structure arranged on the second connecting member, and the first connecting member and the second connecting member are detachably connected through cooperation of the first clamping structure and the second clamping structure; The first clamping structure comprises at least one clamping hook and at least one first circumferential limiting member; The second clamping structure comprises a limiting clamping member and a telescopic sleeve ring, the limiting clamping member is connected to the connecting end of the second connecting member, the limiting clamping member is provided with a second circumferential limiting member corresponding to the first circumferential limiting member, and the side surface of the limiting clamping member is provided with a clamping groove corresponding to the clamping hook; the telescopic sleeve ring is sleeved on the limiting clamping member and the second connecting member and can move back and forth on the limiting clamping member; When the first connecting member and the second connecting member are connected, the hook body of the clamping hook is hooked on the side wall of the clamping groove, the first circumferential limiting member and the second circumferential limiting member cooperate to limit the relative position of the first connecting member and the second connecting member in the circumferential direction, and the telescopic sleeve ring covers the hook body to limit the hook body from moving out of the clamping groove.

2. The card coupling structure according to claim 1, wherein The first circumferential limiting member is a first limiting convex, and the first limiting convex is arranged on the connecting end surface of the first connecting member, and the first limiting convex is provided with a first limiting groove; The second circumferential limiting member is a second limiting convex arranged on the side surface of the limiting clamping member; When the first connecting member and the second connecting member are connected, the second limiting convex extends into the first limiting groove.

3. The card interface structure according to claim 2, wherein The first connecting member has a driven shaft matched with the output structure of the second connecting member; The first limiting convex and the clamping hook form an arc or a circle, and the arc or the circle is coaxial with the driven shaft.

4. The card coupling structure according to claim 3, wherein The number of the first limiting convexes and the number of the clamping hooks are both three, and the three first limiting convexes and the three clamping hooks are arranged alternately.

5. The card coupling structure according to claim 1, wherein The clamping hook comprises a horizontal connecting part, a vertical connecting part and a hook body, one end of the vertical connecting part is connected to the horizontal connecting part, the other end of the vertical connecting part is provided with the hook body, the horizontal connecting part is connected to the first connecting member, and the vertical connecting part has a movement allowance in the direction corresponding to the depth of the clamping groove.

6. The clamping structure according to any one of claims 1 to 5, wherein The second clamping structure comprises a reset member, and the reset member is configured to reset the telescopic sleeve ring to cover the hook body when the telescopic sleeve ring moves to not cover the hook body.

7. The card coupling structure according to claim 6, wherein The connecting end is provided with a first blocking table, the side of the limiting clamping member close to the connecting end is provided with a second blocking table, and the inner side wall of the telescopic sleeve ring is provided with a third blocking table; The third blocking table is located between the first blocking table and the second blocking table, and the second blocking table blocks the third blocking table to block the telescopic sleeve ring from separating from the limiting clamping member and the connecting end; The reset member is arranged between the third blocking table and the first blocking table, and the third blocking table compresses the reset member when the telescopic sleeve ring moves in the direction away from the first connecting member; The reset member is an elastic member.

8. The card interface structure according to claim 7, wherein A limiting protrusion is arranged on the connecting end section between the first and second blocking stages, and the limiting protrusion extends in the moving direction of the telescopic collar; The third blocking stage is provided with a second limiting slot corresponding to the limiting protrusion, the limiting protrusion penetrates through the second limiting slot, the third blocking stage moves back and forth along the limiting protrusion, and the limiting protrusion limits the position of the third blocking stage in the circumferential direction.

9. A hand tool kit characterized in that, The hand-held tool and the at least one adapter accessory are detachably connected through a clamping structure; The clamping structure is the clamping structure according to any one of claims 1-8; The hand-held tool is the first connecting member, and the adapter accessory is the second connecting member, or the hand-held tool is the second connecting member, and the adapter accessory is the first connecting member.

10. The hand tool kit of claim 9, wherein, The hand-held tool is a straight handle structure.

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