Crimping pliers with jaws capable of being replaced quickly

Abstract

The utility model discloses a crimping plier with a jaw capable of being replaced quickly, which comprises a crimping plier body, a pair of plier heads capable of being opened and closed are arranged at the front end of the crimping plier body, grooves are formed in the plier heads, positioning pieces and buttons used for locking the jaw are arranged in the grooves, and the jaw enters the grooves from the front ends of the plier heads. The pressing direction of the button is perpendicular to the installation direction of the jaw, a first compression spring is arranged between the jaw and the positioning piece, a first hook-shaped component is arranged on the side, facing the button, of the jaw, and a second hook-shaped component is arranged on the button. The second hook-shaped part of the button is meshed with the first hook-shaped part under the action of the first compression spring to limit the jaw to be separated from the positioning piece, the jaw can be unlocked by pressing down the button, and jaws of different models can be rapidly replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrician's tool technical field especially relates to a kind of wire crimping pliers of jaw can be quickly replaced. BACKGROUND

[0002] Wire crimping pliers is used to press the connection of wire and terminal. Common telephone line joint, network cable joint, wire and equipment connector are all pressed by wire crimping pliers. Since the types and models of wiring are relatively numerous, corresponding wire crimping pliers need to be matched. For electrician, carrying a large number of wire crimping pliers with different models will not only waste manpower, but also may cause the loss of wire crimping pliers. Therefore, wire crimping pliers with replaceable jaws is undoubtedly the best technical solution. SUMMARY

[0003] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a kind of wire crimping pliers of jaw can be quickly replaced.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of wire crimping pliers of jaw can be quickly replaced, including wire crimping pliers body, the front end of the wire crimping pliers body is provided with a pair of openable and closable jaw head, the jaw head is internally provided with recess, the recess is provided with positioning piece and the button for locking jaw, the jaw is from the front end of jaw head into recess, the positioning piece is at least partially inserted with jaw and cooperates to make jaw longitudinally limit in recess, the pressing direction of the button is perpendicular to the installation direction of jaw, first compression spring is arranged between jaw and positioning piece, first hook-shaped component is arranged on the side of jaw towards button, second hook-shaped component is arranged on the button, the second hook-shaped component of button is engaged with first hook-shaped component under the action of first compression spring to limit jaw from separating from positioning piece.

[0005] As a preferred technical scheme of the utility model, the first hook-shaped component and the second hook-shaped component are arranged in an up-down manner, the first hook-shaped component includes a first hook head and a first clamping groove formed between the first hook head and the jaw, the second hook-shaped component includes a second hook head and a second clamping groove formed between the second hook head and the button, the first hook head is limited in the second clamping groove, and the second hook head is limited in the first clamping groove, so that the two hook-shaped components are engaged with each other.

[0006] As a preferred technical scheme of the utility model, at least one side wall of the recess is vertically provided with a guide groove, and a movable block is arranged on the button and slides in the guide groove.

[0007] As a preferred technical scheme of the utility model, the jaw head includes two clamping plates, and the recess is formed between the two clamping plates, and the guide groove is formed in the inner side wall of the clamping plate.

[0008] As a preferred technical scheme of the utility model, two said clamping plates are open at one end away from the jaw, and each group of the jaw has two clamping plates with an arc-shaped slot corresponding to the position of the button.

[0009] As a preferred technical scheme of the utility model, the positioning member comprises a fixed block and a guide block at the front end of the fixed block, one side of the guide block contacts the inner wall of the groove, the other side of the guide block is spaced apart from the inner wall of the groove, the jaw comprises a toothed part and a connecting part, the connecting part forms the first hook-shaped part towards the side of the button, and the sidewall of the connecting part is provided with an insertion slot for sliding cooperation with the guide block.

[0010] As a preferred technical scheme of the utility model, the sidewall of the fixed block is provided with a positioning column, one of the clamping plates is provided with a positioning hole matched with the positioning column, the fixed block is clamped between the two clamping plates, the fixed block is internally provided with a fixed cavity for placing the second compression spring, the fixed cavity comprises a first mounting hole and a second mounting hole arranged from front to back, the diameter of the first mounting hole is smaller than that of the second mounting hole, the inner wall of the second mounting hole is provided with an internal thread and a plug threadedly connected with the inner wall of the second mounting hole, the rear end of the second compression spring abuts against the plug, and the front end of the second compression spring is provided with a movable part limited in the fixed cavity, the movable part has a pushing part extending out of the first mounting hole and abutting against the rear end of the connecting part.

[0011] As a preferred technical scheme of the utility model, the pressing end of the button has an anti-skid pattern.

[0012] In summary, the utility model has the beneficial effects that when the jaw needs to be removed, only the pressing end of the button needs to be forced, the second hook-shaped part on the button is separated from the first hook-shaped part of the jaw, the occlusion state between the two hook-shaped parts is released, the jaw is no longer restricted and can be taken out of the jaw, when other models of jaws are replaced, the pressing end of the button also needs to be forced until the first hook-shaped part of the jaw reaches the occlusion position, the button is released to make the second hook-shaped part occlude with the first hook-shaped part, so that the jaw is limited to separate from the groove, the jaw and the positioning member are inserted and cooperated to realize the limitation in the longitudinal direction, the first hook-shaped part of the jaw and the second hook-shaped part of the button occlude to realize the limitation in the horizontal direction, the installation is stable and reliable, and the disassembly and assembly are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model;

[0014] Figure 2 is a structural schematic view of the utility model without one clamping plate;

[0015] Figure 3Is the structure schematic view of the cooperation of the jaw, the button and the positioning piece in the utility model.

[0016] Figure 4 Is the structure schematic view of the jaw in the utility model.

[0017] Figure 5 Is the sectional view of the cooperation of the jaw, the button and the positioning piece in the utility model.

[0018] Figure 6 Is the structure schematic view of the clamp plate in the utility model.

[0019] Reference signs: 1, wire crimping pliers body; 2, pliers head; 3, recess; 4, jaw; 5, button; 6, first compression spring; 7, first hook-shaped part; 8, second hook-shaped part; 9, first hook head; 10, first clamping groove; 11, second hook head; 12, second clamping groove; 13, guide groove; 14, movable block; 15, clamp plate; 16, arc-shaped groove; 17, fixed block; 18, guide block; 19, jaw part; 20, connecting part; 21, insertion groove; 22, positioning column; 23, positioning hole; 24, second compression spring; 25, first mounting hole; 26, second mounting hole; 27, plug; 28, movable piece; 29, pushing part; 30, anti-skid line; 31, positioning piece. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] The specific embodiments of the utility model are described below in combination with the drawings.

[0022] As Figures 1-6The shown quick-change jaw crimping pliers comprises a crimping plier body 1, a pair of openable and closable plier heads 2 arranged at the front end of the crimping plier body 1, a recess 3 arranged in the plier head 2, a positioning piece 31 arranged in the recess 3, a button 5 for locking a jaw 4, the jaw 4 entering the recess 3 from the front end of the plier head 2, the positioning piece 31 at least partially in plug-in cooperation with the jaw 4 to longitudinally limit the jaw 4 in the recess 3, the pressing direction of the button 5 being perpendicular to the installation direction of the jaw 4, a first compression spring 6 arranged between the jaw 4 and the positioning piece 31, a first hook-shaped part 7 arranged at the side of the jaw 4 facing the button 5, a second hook-shaped part 8 arranged on the button 5, the second hook-shaped part 8 of the button 5 being in engagement with the first hook-shaped part 7 under the action of the first compression spring 6 to limit the jaw 4 from disengaging from the positioning piece 31, the pressing end of the button 5 having an anti-slip pattern 30 in the embodiment, the jaw 4 and the first hook-shaped part 7 being integrally formed, and the button 5 and the second hook-shaped part 8 being integrally formed.

[0023] The first hook-shaped part 7 and the second hook-shaped part 8 are arranged in an up-down manner, the first hook-shaped part 7 comprising a first hook head 9 and a first clamping groove 10 formed between the first hook head 9 and the jaw 4, the second hook-shaped part 8 comprising a second hook head 11 and a second clamping groove 12 formed between the second hook head 11 and the button 5, the first hook head 9 being limited in the second clamping groove 12, and the second hook head 11 being limited in the first clamping groove 10 to make the two hook-shaped parts engage with each other.

[0024] At least one side wall of the recess 3 is vertically provided with a guide groove 13, and the button 5 is provided with a movable block 14 slidingly limited in the guide groove 13.

[0025] The plier head 2 comprises two clamping plates 15, and the recess 3 is formed between the two clamping plates 15, and the guide groove 13 is arranged in the inner side wall of the clamping plate 15.

[0026] The two clamping plates 15 are open at the end away from the jaw 4, and each group of the two clamping plates 15 of the plier head 2 is provided with an arc-shaped groove 16 corresponding to the position of the button 5, so that the button 5 can be as much as possible installed in the recess 3 to avoid accidental touch, and the arc-shaped groove 16 provides a space for the finger to press down and is more fitted with the finger, and the recess 3 in the embodiment is the space formed between the two clamping plates 15.

[0027] The positioning piece 31 comprises a fixed block 17 and a guide block 18 located at the front end of the fixed block 17, one side of the guide block 18 contacts the inner wall of the recess 3, and the other side of the guide block 18 is spaced apart from the inner wall of the recess 3, the jaw 4 comprises a jaw part 19 and a connecting part 20, the connecting part 20 forms the first hook-shaped part 7 at the side facing the button 5, and the side wall of the connecting part 20 is provided with an insertion groove 21 in sliding cooperation with the guide block 18, and the insertion groove 21 in the embodiment is preferably a strip-shaped notch.

[0028] The side wall of the fixed block 17 is provided with positioning columns 22, one of the clamping plates 15 is provided with positioning holes 23 matched with the positioning columns 22, the fixed block 17 is clamped between the two clamping plates 15, a fixing cavity for placing a second compression spring 24 is arranged in the fixed block 17, the fixing cavity comprises a first mounting hole 25 and a second mounting hole 26 arranged from front to back, the diameter of the first mounting hole 25 is smaller than the diameter of the second mounting hole 26, an inner thread is arranged on the inner wall of the second mounting hole 26, a plug 27 is threadedly connected with the inner wall of the second mounting hole 26, the rear end of the second compression spring 24 abuts against the plug 27, the front end of the second compression spring 24 is provided with a movable part 28 limited in the fixing cavity, the movable part 28 has a pushing part 29 extending out of the first mounting hole 25 and abutting against the rear end of the connecting part 20, when the first hook-shaped part 7 of the jaw 4 and the second hook-shaped part 8 of the button 5 are disengaged, the second reset spring pushes the jaw 4 outwards, so that the jaw 4 is convenient to be taken off.

[0029] Working principle: when the jaw 4 needs to be taken off, the pressing end of the button 5 is only needed to be forced, the second hook-shaped part 8 on the button 5 is separated from the first hook-shaped part 7 of the jaw 4, the engagement state between the two hook-shaped parts is released, the jaw 4 is no longer restricted and can be taken out of the jaw head 2, when other models of the jaw 4 are replaced, the pressing end of the button 5 is also needed to be forced until the first hook-shaped part 7 of the jaw 4 reaches the engagement position, the button 5 is released to make the second hook-shaped part 8 engage with the first hook-shaped part 7, so that the jaw 4 is limited to be separated from the groove 3, the jaw 4 and the positioning part 31 are inserted and matched to realize the limitation in the longitudinal direction, the first hook-shaped part 7 of the jaw 4 and the second hook-shaped part 8 of the button 5 are engaged to realize the limitation in the horizontal direction, the installation is stable and reliable, and the disassembly and assembly are convenient.

[0030] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, the changes and improvements all fall within the scope of the utility model claimed, and the protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A wire crimping tool with quick-change jaws, comprising a wire crimping tool body (1), wherein a pair of openable jaws (2) are provided at the front end of the wire crimping tool body (1), a groove (3) is provided in the jaws (2), a positioning element (31) and a button (5) for locking the jaws (4) are provided in the grooves (3), the jaws (4) enter the grooves (3) from the front end of the jaws (2), and the positioning element (31) is at least partially engaged with the jaws (4) to longitudinally limit the jaws (4) within the grooves (3), characterized in that: The pressing direction of the button (5) is perpendicular to the installation direction of the jaws (4). A first compression spring (6) is provided between the jaws (4) and the positioning member (31). A first hook-shaped member (7) is provided on the side of the jaws (4) facing the button (5). A second hook-shaped member (8) is provided on the button (5). The second hook-shaped member (8) of the button (5) engages with the first hook-shaped member (7) under the action of the first compression spring (6) to prevent the jaws (4) from disengaging from the positioning member (31).

2. The wire crimping pliers with quick-change jaws according to claim 1, characterized in that: The first hook-shaped component (7) and the second hook-shaped component (8) are arranged vertically. The first hook-shaped component (7) includes a first hook head (9) and a first slot (10) formed between the first hook head (9) and the jaws (4). The second hook-shaped component (8) includes a second hook head (11) and a second slot (12) formed between the second hook head (11) and the button (5). The first hook head (9) is confined within the second slot (12) and the second hook head (11) is confined within the first slot (10) so that the two hook-shaped components interlock with each other.

3. The wire crimping pliers with quick-change jaws according to claim 1, characterized in that: The groove (3) has a guide groove (13) vertically arranged on at least one side wall, and the button (5) is provided with a movable block (14) that slides and is limited within the guide groove (13).

4. The wire crimping pliers with quick-change jaws according to claim 3, characterized in that: The clamp head (2) includes two clamping plates (15) and the groove (3) is formed between the two clamping plates (15), and the guide groove (13) is opened on the inner side wall of the clamping plate (15).

5. The wire crimping pliers with quick-change jaws according to claim 4, characterized in that: The two clamps (15) are open at the ends away from the jaws (4), and each set of clamps (2) has an arc-shaped groove (16) on the two clamps (15) corresponding to the button (5).

6. The wire crimping pliers with quick-change jaws according to claim 4, characterized in that: The positioning component (31) includes a fixing block (17) and a guide block (18) located at the front end of the fixing block (17). One side of the guide block (18) contacts the inner wall of the groove (3), and the other side of the guide block (18) is spaced apart from the inner wall of the groove (3). The jaws (4) include a toothed portion (19) and a connecting portion (20). The connecting portion (20) forms the first hook-shaped component (7) on the side facing the button (5). The side wall of the connecting portion (20) is provided with a slot (21) that slides and engages with the guide block (18).

7. The wire crimping pliers with quick-change jaws according to claim 6, characterized in that: The fixing block (17) has a positioning post (22) on its side wall, and one of the clamping plates (15) has a positioning hole (23) that mates with the positioning post (22). The fixing block (17) is clamped between the two clamping plates (15). The fixing block (17) has a fixing cavity for placing the second compression spring (24). The fixing cavity includes a first mounting hole (25) and a second mounting hole (26) arranged from front to back. The diameter of the first mounting hole (25) is smaller than that of the second mounting hole (26). The diameter of the hole (26), the inner wall of the second mounting hole (26) is provided with an internal thread and a plug (27) that is threaded to the inner wall of the second mounting hole (26), the rear end of the second compression spring (24) abuts against the plug (27), the front end of the second compression spring (24) is provided with a movable part (28) that is limited to the fixed cavity, the movable part (28) has a pushing part (29) extending outside the first mounting hole (25) and the pushing part (29) abuts against the rear end of the connecting part (20).

8. The wire crimping pliers with quick-change jaws according to claim 1, characterized in that: The pressing end of the button (5) has anti-slip texture (30).

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