Tool scissors with interchangeable head

Abstract

Tool scissors with an interchangeable head, comprising a handle and a tool head (26) which is removably inserted into and adapted to the handle, characterized in that the handle is provided with an insertion groove (1), wherein a lower end of the tool head (26) is inserted into the insertion groove (1), wherein a knob (3) is pivotally connected to one side of the handle, and wherein a stop portion (4) is provided on one side of the lower end of the tool head (26), wherein the knob (3) is provided with a locking portion (5), wherein an elastic element (2) is provided between the knob (3) and the handle, wherein the elastic element (2) pushes out the other end of the knob (3) located on the locking portion (5) so that the locking portion (5) locks inwardly with the stop portion (4), and wherein the knob (3) is pressed,to unlock the locking portion (5) from the stop portion (4) and to remove the tool head (26) from the insertion groove (1) for replacement.,

Description

Technical FieldThe present invention relates to the technical field of hand tools, in particular a tool scissors with a replaceable head.Prior ArtCurrently available replaceable head multifunction tools use an external spring or torsion spring for the tong head and a limited rivet structure with a double coaxial and built-in handle insert. Many types of forceps heads may be connected to a sheath with the handle via this structure, in that one forceps may achieve multiple uses. However, there are still the following drawbacks in the actual use of this type of multifunctional forceps with interchangeable head: when changing the forceps, the repeated putting on and putting off of the sheath is necessary, which is relatively cumbersome. When the forceps are used without a sheath, the opened forceps must be squeezed due to the sharp edges of the forceps before it can be removed from the handle for replacement, which presents a potential risk of cutting. There are also some deficiencies in the use effect.Content of the Present Utility ModelI. Technical Problems to Be SolvedThe problem to be solved by the present invention is to provide a tool shear with a replaceable head to solve the problems in the prior art that the replacement of the head of a tool shear is cumbersome and the use is unstable.11. Technical SolutionsIn order to solve the above technical problems, the present invention provides a replaceable head type tool scissors comprising a handle and a tool head detachably inserted into and fitted to the handle, the handle is provided with an insertion groove, a lower end of the tool head is inserted into the insertion groove, a knob is hinged to one side of the handle, and a stopper portion is provided on one side of the lower end of the tool head, the knob is provided with a locking portion, an elastic member is provided between the knob and the handle, the elastic member pushes out the other end of the knob located on the locking portion, so that the locking portion locks inward with the stopper portion, and the knob is pushed, to unlock the locking portion from the stopper portion and remove the tool head from the insertion groove for replacement.In some embodiments, the handle includes a first handle, a second handle, and a connection seat, the insertion groove is symmetrically provided on both the first handle and the second handle, an installation groove is provided around the insertion groove, the connection seat includes a first connection portion and a second connection portion hingedly connected at an end portion, ends of the first connection portion and the second connection portion are respectively inserted into the installation groove.In some embodiments, one side of the first handle is provided with an opening groove, the knob is hinged in the opening groove by a positioning shaft, the knob is provided with a positioning post, the elastic member is a spring, and the elastic member is fitted on the positioning post, the spring pushes out the positioning post, so that the locking portion is caught with the stopper portion.In some embodiments, the first handle and the second handle are provided with a spring groove on an inner side, a return spring is installed between the spring grooves, the return spring 14 can automatically open the first handle 6 and the second handle 7, the first handle is provided with a first positioning block, the first positioning block is slidably installed with a locking block, the second handle is provided with a second positioning block, and the locking block is provided with an opening on one side.In some embodiments, the lock block is open on one side and symmetrically provided with a sliding portion, and the first positioning block is provided with a sliding groove, the sliding portion is slidably provided in the sliding groove, at least one set of limiting bars is symmetrically provided on an inner wall of the lock block and on one side of the sliding groove, the lock block slides along the sliding groove by a sliding portion and is positioned by the limiting bar, and when the lock block slides to a low position, the opening corresponds to the second positioning block, the second positioning block can pass through the opening, which denotes an unlocked state.In some embodiments, a through hole is provided on a side of the first connection portion, and the locking portion passes through the through hole and is connected to the stopper portion, the first positioning block and the second positioning block are provided with corresponding limiting protrusions.In some embodiments, the first connection portion is provided with a protrusion block on the inner wall, the second connection portion is provided with a curved limiting groove at the hinge location, and an end portion of the protrusion block is placed in the limiting groove.ADVANTAGEOUS EFFECTSThe present invention provides a replaceable head type tool shear, the button on the handle can be locked to the stopper portion at the lower end of the tool head, and unlocking can be realized by depressing the button, and the tool head can be directly taken out from inside. In assembly, the spring can push the button out to automatically lock the tool head, the replacement of the tool scissors head is convenient and labor saving, and the connection is more stable, and the head is not so easily loosened with force, it is not necessary to repeatedly disassemble and assemble the sheath.Brief Description of the DrawingsIn order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly described below. Of course, the attached drawings in the following description are only some of the embodiments of the present invention, and other attached drawings can be made without any creative work for those skilled in the art based on these drawings. FIG. 1 is a three-dimensional view of a replaceable head tool shear according to the present invention; FIG. 2 is a sectional view of a tool shear with replaceable head according to the present invention; FIG. 3 is a three-dimensional view of a tool head and a knob of a replaceable head tool shear according to the present invention; FIG. 4 is a three-dimensional view of a joint seat of a replaceable head type tool shear according to the present invention; FIG. 5 is a three-dimensional view of a first handle and a second handle of a replaceable head tool shear according to the present invention; FIG. 6 is a three-dimensional view of a first handle of a replaceable head tool shear according to the present invention; FIG. 7 is a three-dimensional view of a locking block of a replaceable head tool shear according to the present invention.List of reference numbers:1. Insertion groove; 2. elastic element; 3. button; 4. stop portion; 5. locking portion; 6. first handle; 7. second handle; 8. installation groove; 9. first connection portion; 10. second connection portion; 11. opening groove; 12. positioning post; 13. spring groove; 14. reset spring; 15. first positioning block; 16. locking block; 17. second positioning block; 18. opening; 19. sliding portion; 20. sliding groove; 21. limiting rod; 22. through hole; 23. limiting protrusion; 24. protrusion block; 25. limiting groove; 26. tool head.DETAILED EMBODIMENTThe embodiments of the present application will be described below in detail in conjunction with the accompanying drawings.The embodiments of the present application will be described below with reference to certain specific embodiments, and other advantages and activities of the present application may be readily understood by those skilled in the art from what is disclosed in this specification. Of course, the described embodiments are only a part of the embodiments of the present application and not all of them. The present application may also be implemented or applied in various specific embodiments, and the details in the present specification may be modified or changed based on various views and applications without departing from the spirit of the present application. Note that the following embodiments and features may be combined with each other in the embodiments without conflict. Starting from the embodiments in the present application, all other embodiments achieved by a person of ordinary skill in the art without any curative work fall within the scope of the present application.Various aspects of embodiments that fall within the scope of the appended claims are described below to provide clarity. Of course, the aspects described herein may be embodied in a variety of forms, and any particular structure and / or function described herein is illustrative only. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect and that two or more of these aspects can be combined in different ways. For example, any number and aspect described herein may be used to implement practical devices and / or methods. Alternatively, the apparatus and / or method may be implemented using other structures and / or functionalities in addition to one or more of the aspects set forth herein.It is also to be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and the drawings only show the components relevant to the present application and are not drawn in accordance with the number, shape, and size of the components in the actual implementation, and the actual implementation of the components in terms of shape, number, and proportion may be an arbitrary change, and the layout of the components may be more complex.In the following description, specific details are set forth in order to facilitate a thorough understanding of the examples. However, those skilled in the art to which they belong will understand that practice may be practiced without these specific details.As shown in Figs. 1 to 7, the present invention provides a replaceable head type tool scissors comprising a handle and a tool head 26 detachably inserted into and fitted to the handle, wherein the tool head 26 may be a plurality of tools such as scissors, pliers, etc., and the handle is provided with an insertion groove 1 and the lower end of the tool head 26 is inserted into the insertion groove 1, a knob 3 is hinged to one side of the handle, a stopper portion 4 is provided on one side of the lower end of the tool head 26, the stopper portion 4 is a rectangular hook portion, the knob 3 is provided with a locking portion 5, the locking portion 5 corresponds to the shape of the stopper portion 4, and an elastic member 2 is provided between the knob 3 and the handle, the elastic member 2 pushes out the other end of the knob 3 located on the locking portion 5 so that the locking portion 5 locks inward with the stopper portion 4, and the knob 3 is pushed, whereby the knob 3 is tilted along the hinge axis, the locking portion 5 moves outward and then is released from the stopper portion 4 to complete the unlocking, so that the tool head 26 can be taken out from the insertion groove 1 and replaced.In some embodiments, as shown in Figs. 1 to 2 and 4 to 5, the handle comprises a first handle 6, a second handle 7 and a connection seat, the insertion groove 1 is symmetrically provided on the first handle 6 and the second handle 7, and the lower ends of the tool head 26 are inserted into the insertion grooves 1 on both sides, and an installation groove 8 is installed around the insertion grooves 1, the connection seat comprises a first connection portion 9 and a second connection portion 10 hingedly connected at one end portion, and the end portions of the first connection portion 9 and the second connection portion 10 are each inserted into the installation groove 8, the first handle 6 is provided with an opening groove 11 on one side, the knob 3 is hingedly connected to the opening groove 11 by a positioning shaft, and the knob 3 is further provided with a positioning post 12, the elastic member 2 is a spring, the elastic member 2 is fitted to the positioning post 12, thereby pushing out the positioning post 12 to one side so that the locking portion 5 is moved inward.In some embodiments, as shown in FIGS. 1 and 6 to 7, the first handle 6 and the second handle 7 are symmetrically provided with a spring groove 13 on the inside of the first handle 6 and the second handle 7 provided with a return spring 14 therebetween, and by means of the return spring 14, the first handle 6 and the second handle 7 can be automatically opened, facilitating the use of the handle for pushing and closing a plurality of times, the first handle 6 is provided with a first positioning block 15, a locking block 16 is slidably installed on the first positioning block 15, a second positioning block 17 is provided on the second handle 7, and an opening 18 is provided on one side of the locking block 16. When the lock block 16 is moved to a lower end, the opening 18 is at the same horizontal height as the second positioning block 17 which is in an unlocked state, the second positioning block 17 can be passed through the lock block 16, the second handle 7 and the first handle 6 can be opened, and the upwardly sliding lock block 16 locks the second handle 7. in particular, the lock block is open on one side 16 and symmetrically provided with a sliding portion 19, the first positioning block 15 is provided with a sliding groove 20, the sliding portion 19 is slidably provided in the sliding groove 20, and at least one set of limiting rods 21 is symmetrically provided on the inner wall of the lock block 16 and on one side of the sliding groove 20, and the limiting rods 21 can, when cooperating with each other, thus fix the lock block 16, the locking block 16 can be held in its current position. The first positioning block 15 and the second positioning block 17 are provided with respective restricting protrusions 23, and the restricting protrusions 23 on both sides of the first handle 6 and the second handle 7 abut each other when the first handle 6 and the second handle 7 are closed, which serves to restrict the closing angle of the upper tool head 26.In some embodiments, as illustrated in FIGS. 1 and 4, a through hole 22 is provided on one side of the first connection portion 9, the locking portion 5 passes through the through hole 22 to connect the stopper portion 4, a protrusion block 24 is provided on the inner wall of the first connection portion 9, and a curved limiting groove 25 is provided at the hinge point of the second connection portion 10. The end portion of the protrusion block 24 is placed in the limiting groove 25, and the end portion of the protrusion block 24 can slide only along the limiting groove 25, so that the opening and closing angles of the first connection portion 9 relative to the second connection portion 10 are limited to this range.The present invention provides a replaceable head type tool shear, the button on the handle can be locked to the stopper portion at the lower end of the tool head, and unlocking can be realized by depressing the button, and the tool head can be directly taken out from inside. In assembly, the spring can push the button out to automatically lock the tool head, the replacement of the tool scissors head is convenient and labor saving, and the connection is more stable, and the head is not so easily loosened with force, it is not necessary to repeatedly disassemble and assemble the sheath.The foregoing is only a preferred embodiment of the present invention, and it should be noted that a variety of improvements and configurations can be made to those skilled in the art without departing from the technical principles of the present invention, and these improvements and configurations should also be considered to be within the scope of the present invention.

Claims

A replaceable head tool shear comprising a handle and a tool head (26) removably inserted into and fitted to the handle, characterized in that the handle is provided with an insertion groove (1), a lower end of the tool head (26) is inserted into the insertion groove (1), a knob (3) is hingedly connected to one side of the handle, and a stopper portion (4) is provided on one side of the lower end of the tool head (26), the knob (3) is provided with a locking portion (5), an elastic member (2) is provided between the knob (3) and the handle, the elastic member (2) pushing out the other end of the knob (3) located on the locking portion (5), such that the locking portion (5) locks inward with the stopper portion (4) and the button (3) is pressed to unlock the locking portion (5) from the stopper portion (4) and remove the tool head (26) from the insertion groove (1) for replacement.The replaceable head tool shear according to claim 1, characterized in that the handle comprises a first handle (6), a second handle (7) and a connection seat, the insertion groove (1) being symmetrically provided on both the first handle (6) and the second handle (7), an installation groove (8) being provided around the insertion groove (1), the connection seat comprising a first connection portion (9) and a second connection portion (10) hingedly connected at an end portion, ends of the first connection portion (9) and the second connection portion (10) being respectively inserted into the installation groove (8).The tool shear with replaceable head according to claim 2, characterized in that one side of the first handle (6) is provided with an opening groove (11), wherein the knob (3) is hingedly connected by means of a positioning shaft in the opening groove (11), wherein the knob (3) is provided with a positioning post (12), wherein the elastic element (2) is a spring, and wherein the elastic element (2) is placed on the positioning post (12).Tool shear with replaceable head according to claim 2, characterised in that the first handle (6) and the second handle (7) are provided on an inner side with a spring groove (13), wherein a return spring (14) is installed between the spring grooves (13).The tool shear with replaceable head according to claim 2, characterized in that the first handle (6) is provided with a first positioning block (15), the first positioning block (15) is slidably installed with a locking block (16), the second handle (7) is provided with a second positioning block (17), and the locking block (16) is provided with an opening (18) on one side.The replaceable head tool shear according to claim 5, characterized in that the locking block (16) is open on one side and is symmetrically provided with a sliding portion (19), and that the first positioning block (15) is provided with a sliding groove (20), the sliding portion (19) being slidably provided in the sliding groove (20), at least one set of limiting rods (21) being symmetrically provided on an inner wall of the locking block (16) and on one side of the sliding groove (20).The replaceable head type tool shear according to claim 2, characterized in that a through hole (22) is provided on one side of the first connecting portion (9), and the locking portion (5) passes through the through hole (22) and is connected to the stopper portion (4).Tool shear with replaceable head according to claim 5, characterised in that the first positioning block (15) and the second positioning block (17) are provided with corresponding delimiting projections (23).The replaceable head type tool shear according to claim 2, characterized in that the first connecting portion (9) is provided with a protrusion block (24) on the inner wall, the second connecting portion (10) is provided with a curved boundary groove (25) at the joint, and an end portion of the protrusion block (24) is placed in the boundary groove (25).

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