Nose pliers with self-locking function

Abstract

The utility model relates to the technical field of water gap pliers, and discloses a pair of water gap pliers with a self-locking function, which comprises two pliers handles, the same ends of the two pliers handles are fixedly connected with pliers heads, the ends, close to the pliers heads, of the two pliers handles are rotationally connected through a rotating shaft, a self-locking assembly is arranged between the two pliers handles, and the self-locking assembly is connected with the pliers handles through a rotating shaft. The self-locking assembly is used for limiting opening and closing of the two plier handles, anti-falling assemblies are arranged outside the plier handles and used for preventing the water gap plier from being separated from the hands, the self-locking assembly comprises a sleeve rod and a connecting rod, the sleeve rod is fixedly connected to the outer portion of one plier handle, and the connecting rod is fixedly connected to the outer wall of the side, close to the sleeve rod, of the other plier handle. According to the self-locking water gap pliers, the limiting block abuts against the clamping teeth through pushing of the reset spring, self-locking of the water gap pliers is achieved, a user does not need to tightly hold the pliers handles for a long time in the using process, the using strength of the user is reduced, and the situation that the jaw is opened accidentally, and the user is hurt due to clamping is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water mouth pliers, especially to a water mouth pliers with self-locking function. BACKGROUND

[0002] Water mouth pliers are a kind of hardware tools, which are mainly used for cutting the excess part of electronic component pins and plastic model parts. The water mouth pliers can neatly cut off these parts, effectively prevent the damage to the surface of the parts, reduce the whitening and lack of meat at the water gap, make the appearance of the parts more neat and beautiful, and make the model parts more exquisite.

[0003] At present, the common water mouth pliers are usually composed of two handles and a plier head connected at one end of the handles. The two handles are connected through a pin shaft, so that the plier head can realize opening and closing action. When in use, the user holds the handles tightly to close the plier head and complete the cutting operation. However, in the process of using the existing water mouth pliers, the user needs to hold the handles tightly for a long time to maintain the closed state of the plier head when trimming, which not only increases the use strength of the user, but also is more laborious to operate. Meanwhile, after the cutting is completed, the plier head will be accidentally opened when the user releases the handles, which may cause the user to be injured and reduces the safety in use. In addition, the user needs to exert a large force to close the plier head every time in the trimming process, which also leads to low operation efficiency. Therefore, the technical personnel in the field proposes a water mouth pliers with self-locking function to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides a water mouth pliers with self-locking function, which aims at improving the problem that the existing water mouth pliers need to hold the handles tightly for a long time to maintain the closed state of the plier head, which is more laborious to operate, and the plier head will be accidentally opened after the trimming is completed, which may cause the user to be injured.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a water mouth pliers with self-locking function, which comprises two handles, a plier head fixedly connected at the same end of the two handles, and a rotating shaft rotationally connected at the end of the two handles close to the plier head. A self-locking assembly is arranged between the two handles to limit the opening and closing of the two handles. A anti-dropping assembly is arranged on the outside of the handle to prevent the water mouth pliers from being separated from the hand.

[0006] The self-locking assembly comprises a sleeve rod and a connecting rod. The sleeve rod is fixedly connected to the outside of one of the handles. The connecting rod is fixedly connected to the side wall of the other handle close to the sleeve rod. A limiting groove is formed in the inside of the sleeve rod. The connecting rod is slidingly connected to the inside of the limiting groove. A plurality of equidistantly arranged clamping teeth are fixedly connected to the outer wall of the connecting rod. A locking part is arranged on the side wall of the sleeve rod close to the clamping teeth.

[0007] Further, the locking component comprises a fixed block fixedly connected to the outer wall of the sleeve rod near the clamping tooth, a rotating rod rotatably connected to the inside of the fixed block, a limiting block fixedly connected to the outside of the rotating rod, and a return spring fixedly connected to the outside of the limiting block.

[0008] Further, the other end of the return spring is fixedly connected to the inner wall of the fixed block, and one end of the limiting block abuts against the clamping tooth.

[0009] Further, one end of the rotating rod extends to the outer wall of the fixed block and is fixedly connected with a rotating block, and the bottom surface of the rotating block is slidingly connected with the surface of the fixed block.

[0010] Further, the anti-withdrawal assembly comprises a limiting frame rotatably connected to one end of the handle away from the head, and the inner side of the limiting frame is provided with an antiskid rubber strip.

[0011] Further, the limiting frame is in the shape of a mouth, and the outer wall of the limiting frame is fitted with the outer wall of the handle.

[0012] Further, the two handles are provided with a supporting spring near one end of the rotating shaft, and the two ends of the supporting spring are fixedly connected to the adjacent outer walls of the two handles.

[0013] Further, the sleeve rod and the connecting rod are in the shape of an arc.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, when the connecting rod moves in the limiting groove by holding the handle, the handle is opened by the supporting spring when the pressure is stopped, and under the pushing of the return spring, the limiting block abuts against the clamping tooth, thereby limiting the opening of the two handles, realizing the self-locking of the water port tongs, and reducing the use strength of the user without holding the handle for a long time, effectively preventing the accidental opening of the tongs from causing injury to the user.

[0016] 2. In the utility model, the movement of the hand is limited by the limiting frame when holding, preventing the water port tongs from accidentally falling off the hand during use, ensuring the safety of use, and further improving the friction with the hand through the antiskid rubber strip, reducing the falling of the water port tongs, and when the space for trimming is narrow or the length of the tongs is not enough, the length of the handle can be extended by rotating the limiting frame, facilitating the trimming operation and improving the use flexibility of the water port tongs. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A three-dimensional view of the water port tongs with self-locking function is provided.

[0018] Figure 2 A handle structure schematic view of a water gap clamp with self-locking function is provided in the utility model;

[0019] Figure 3 For Figure 2 The enlarged view at A in the middle;

[0020] Figure 4 A limiting block structure schematic view of a water gap clamp with self-locking function is provided in the utility model.

[0021] Legend:

[0022] 1, handle; 2, clamp head; 3, rotating shaft; 4, supporting spring; 5, sleeve rod; 6, fixed block; 7, connecting rod; 8, clamping tooth; 9, limiting groove; 10, rotating rod; 11, limiting block; 12, reset spring; 13, rotating block; 14, limiting frame; 15, anti-skid rubber strip. Specific implementation

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Reference Figure 1 - Figure 3 An embodiment provided by the utility model: a water gap clamp with self-locking function, comprising two handles 1, the same end of the two handles 1 is fixedly connected with a clamp head 2, the two handles 1 can facilitate the user to exert pressure, and the operation of trimming is carried out through the clamp head 2, the end of the two handles 1 close to the clamp head 2 is rotatably connected through a rotating shaft 3, the rotating shaft 3 enables the two handles 1 to relatively rotate around it, realizes the opening and closing action of the water gap clamp, thereby completing the shearing function, a self-locking assembly is arranged between the two handles 1 for limiting the opening and closing of the two handles 1, an anti-falling assembly is arranged on the outside of the handle 1 for preventing the water gap clamp from falling off the hand, a supporting spring 4 is arranged between the two handles 1 close to the rotating shaft 3, the two ends of the supporting spring 4 are fixedly connected to the adjacent side outer walls of the two handles 1 respectively, the supporting spring 4 can support the two handles 1 apart in the case that the self-locking of the water gap clamp is released, thereby reducing the operation of the user opening the clamp mouth in the trimming process, and the convenience of trimming is improved;

[0025] The self-locking assembly comprises a sleeve rod 5 and a connecting rod 7, the sleeve rod 5 is fixedly connected to the middle outer wall of one of the handles 1, the connecting rod 7 is fixedly connected to the outer wall of the other handle 1 near the sleeve rod 5, both the sleeve rod 5 and the connecting rod 7 are arc-shaped structures, which can better adapt to the shape and movement trajectory of the handle 1, and ensure that no interference occurs during use, the inside of the sleeve rod 5 is provided with a limiting groove 9, the connecting rod 7 is slidingly connected to the inside of the limiting groove 9, the limiting groove 9 provides a sliding track for the connecting rod 7, so that the connecting rod 7 can stably move in the sleeve rod 5, the outer wall of the connecting rod 7 is fixedly connected with a plurality of equally spaced clamping teeth 8, the outer wall of the sleeve rod 5 near the clamping teeth 8 is provided with a locking component, the locking component comprises a fixed block 6, the fixed block 6 is fixedly connected to the outer wall of the sleeve rod 5 near the clamping teeth 8, the fixed block 6 provides a mounting and supporting position for other components of the locking component, the inside of the fixed block 6 is rotatably connected with a rotating rod 10, the outside of the rotating rod 10 is fixedly connected with a limiting block 11, the limiting block 11 can cooperate with the clamping teeth 8 to realize the locking or unlocking of the nozzle tongs, the outside of the limiting block 11 is fixedly connected with a return spring 12, the other end of the return spring 12 is fixedly connected to the inner wall of the fixed block 6, the return spring 12 can quickly push the limiting block 11 back to the original position for the next self-locking operation, one end of the limiting block 11 abuts against the clamping teeth 8, one end of the rotating rod 10 extends to the outer wall of the fixed block 6 and is fixedly connected with a rotating block 13, the bottom surface of the rotating block 13 is slidingly connected with the surface of the fixed block 6, the rotating block 13 provides a convenient operation position for the user, and the rotation of the rotating rod 10 can be easily controlled by rotating the rotating block 13, thereby realizing the self-locking and unlocking operation.

[0026] Specifically, when performing the trimming operation, the object to be trimmed is placed between the two tongs 2, and then the handles 1 are pressed by holding the limiting frame 14, at this time, the two handles 1 are close to each other, and the supporting spring 4 is forced to shrink, as the handles 1 approach, the connecting rod 7 slides in the limiting groove 9 provided in the sleeve rod 5, thereby driving the plurality of clamping teeth 8 to move together, when the user stops exerting force, the supporting spring 4 will exert a pushing force on the two handles 1 to open them, however, due to the clamping teeth 8 fixed on the connecting rod 7 cannot move under the limitation of the limiting block 11, thereby realizing the self-locking of the nozzle tongs, thereby reducing the use intensity and effectively preventing the accidental opening of the tongs from causing injury to the user, when the nozzle tongs need to be opened, the rotating block 13 is rotated, the rotating block 13 drives the rotating rod 10 to rotate, thereby causing the limiting block 11 to rotate and exerting a pressure on the return spring 12 to make it shrink, at this time, the limiting block 11 releases the limiting effect on the clamping teeth 8, under the elastic support of the supporting spring 4, the two handles 1 can be opened, after the rotating block 13 is released, the limiting block 11 will reset under the pushing of the return spring 12, and continue to limit the movement of the clamping teeth 8, maintaining the self-locking state of the nozzle tongs.

[0027] Reference Figure 4 , The anti-falling assembly comprises a limiting frame 14 rotatably connected to the end of the handle 1 away from the tongs 2, which ensures that the movement of the hand can be limited during use to prevent the water nozzle tongs from accidentally falling off, and the inner side of the limiting frame 14 is provided with a non-slip rubber strip 15, which can increase the friction between the hand and the limiting frame 14 to improve the stability of holding, and the limiting frame 14 is in the shape of a mouth, and the outer wall of the limiting frame 14 is in close contact with the outer wall of the handle 1.

[0028] Specifically, the movement of the hand can be limited when holding through the limiting frame 14 to prevent the water nozzle tongs from accidentally falling off from the hand during use, ensuring the safety of use, and the non-slip rubber strip 15 provided on the inner side of the limiting frame 14 further improves the friction with the hand, so that even in adverse conditions such as sweating, the situation of the water nozzle tongs slipping off can be reduced, and when the space is narrow or the length of the tongs is not enough, the limiting frame 14 can be rotated by one hundred and eighty degrees, thereby the length of the handle 1 can be extended, facilitating the trimming operation, and improving the use flexibility of the water nozzle tongs.

[0029] Working principle: when using this water nozzle tongs, both hands can hold the two limiting frames 14 outside the handle 1, which can limit the movement of the hand to avoid accidental falling off from the hand during use, ensuring the safety of use, and further improving the friction with the hand under the cooperation of the non-slip rubber strip 15, reducing the situation of slipping off, secondly, when trimming, the place that needs to be trimmed of the object is placed between the two tongs 2, and the two handles 1 are tightly held, so that the two handles 1 are close to each other, and the supporting spring 4 will be contracted under force, at this time the connecting rod 7 will slide in the limiting slot 9 opened in the sleeve rod 5, thereby driving the plurality of clamping teeth 8 to move, when stopping force, the supporting spring 4 will exert a pushing force on the two handles 1 to open them, while the clamping teeth 8 fixed on the connecting rod 7 cannot move under the limitation of the limiting block 11, thereby realizing the self-locking of the water nozzle tongs, which can be used without holding for a long time, reducing the user's use intensity, and preventing the tongs from accidentally opening, causing injury to the user, when opening, only need to rotate the rotating block 13 to drive the rotating rod 10 to rotate, thereby making the limiting block 11 rotate and exerting pressure on the return spring 12 to make it contract, at the same time, the restriction on the clamping teeth 8 is released, and under the elastic support of the supporting spring 4, the two handles 1 can be opened, after releasing the rotating block 13, the limiting block 11 will reset under the pushing of the return spring 12, which can continue to limit the movement of the clamping teeth 8, and keep the self-locking of the water nozzle tongs, when the space is narrow or the length of the tongs is not enough, the limiting frame 14 on the handle 1 can be rotated by one hundred and eighty degrees, thereby the length of the handle 1 can be extended, facilitating the trimming operation, and improving the use flexibility of the water nozzle tongs.

[0030] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A nozzle clamp with self-locking function, comprising two clamp handles (1), characterized in that: Both the same ends of two said handles (1) are fixedly connected with tongs (2), both the ends of two said handles (1) close to tongs (2) are rotatably connected through rotating shafts (3), self-locking assemblies are arranged between two said handles (1) for limiting the opening and closing of two handles (1), the outer part of handle (1) is provided with anti-dropping assemblies for preventing the water gap tongs from separating from hands. The self-locking assembly comprises a sleeve rod (5) and a connecting rod (7), the sleeve rod (5) is fixedly connected to the outer part of one of the handles (1), the connecting rod (7) is fixedly connected to the outer wall of the other handle (1) close to the sleeve rod (5), the inner part of the sleeve rod (5) is provided with a limiting groove (9), the connecting rod (7) is slidably connected in the limiting groove (9), the outer wall of the connecting rod (7) is fixedly connected with a plurality of equidistantly arranged clamping teeth (8), the outer wall of the sleeve rod (5) close to the clamping teeth (8) is provided with a locking component.

2. The nozzle holder according to claim 1, characterized in that: The locking component comprises a fixed block (6), the fixed block (6) is fixedly connected to the outer wall of the sleeve rod (5) close to the clamping teeth (8), the inner part of the fixed block (6) is rotatably connected with a rotating rod (10), the outer part of the rotating rod (10) is fixedly connected with a limiting block (11), the outer part of the limiting block (11) is fixedly connected with a return spring (12).

3. The nozzle holder according to claim 2, characterized in that: The other end of the return spring (12) is fixedly connected to the inner wall of the fixed block (6), one end of the limiting block (11) abuts against the clamping teeth (8).

4. The nozzle holder according to claim 2, wherein: One end of the rotating rod (10) extends to the outer wall of the fixed block (6) and is fixedly connected with a rotating block (13), the bottom surface of the rotating block (13) is slidably connected with the surface of the fixed block (6).

5. The nozzle holder according to claim 1, wherein: The anti-dropping assembly comprises a limiting frame (14), the limiting frame (14) is rotatably connected to the end of the handle (1) away from the tongs (2), the inner side of the limiting frame (14) is provided with a non-slip rubber strip (15).

6. The nozzle holder according to claim 5, wherein: The limiting frame (14) is in the shape of a mouth, the outer wall of the limiting frame (14) is fitted with the outer wall of the handle (1).

7. The nozzle holder according to claim 1, wherein: Support springs (4) are arranged between two said handles (1) close to the rotating shafts (3), both ends of the support spring (4) are fixedly connected to the adjacent outer walls of two handles (1).

8. The nozzle holder according to claim 1, wherein: The sleeve rod (5) and the connecting rod (7) are both in arc-shaped structure.

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