CN215617485U

CN215617485U - Tweezers with locking function

Info

Publication number: CN215617485U
Application number: CN202121280028.7U
Authority: CN
Inventors: 邵文奇
Original assignee: Chongqing Blue Bank Communication Technology Co Ltd
Current assignee: Chongqing Lanan Technology Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-25
Anticipated expiration: 2031-06-09

Abstract

The utility model provides forceps with a locking function, which comprise two forceps arms, wherein the rear ends of the two forceps arms are fixedly connected, and the front ends of the two forceps arms are mutually spaced to form a free end; the forceps are characterized in that the forceps arms are rotatably connected with supporting arms, and the two supporting arms are rotatably connected; the forceps further comprise a rotation locking unit which locks the rotation between the two support arms. After the chip is clamped by the tweezers, the rotation locking unit locks the rotation between the two supporting arms, so that the two tweezers arms and the two supporting arms can not rotate relatively, and the two tweezers arms clamp objects, so that a welding engineer can clamp the chip by the two tweezers arms without pinching the two tweezers arms hard any more when welding the chip, and the welding difficulty is reduced.

Description

Tweezers with locking function

Technical Field

The utility model belongs to the technical field of tweezers, and particularly relates to tweezers with a locking function.

Background

In the laboratory welding, tweezers are always used, but when the tweezers are used for clamping a chip, the tweezers are generally required to be pinched by an index finger and a thumb to clamp the chip, and then the chip clamped by the tweezers is placed on a tin plate for welding. When welding the chip, the hand of welding engineer not only will be held between the fingers tweezers and press from both sides tight chip hand simultaneously also can not rock, and this action is wasted time and energy and need be absorbed in for the welding degree of difficulty risees.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems in the prior art, and the utility model aims to provide tweezers with a locking function.

In order to achieve the purpose, the utility model adopts the following technical scheme: the forceps with the locking function comprise two forceps arms, wherein the rear ends of the two forceps arms are fixedly connected, and the front ends of the two forceps arms are mutually spaced to form a free end; the forceps are characterized in that the forceps arms are rotatably connected with supporting arms, and the two supporting arms are rotatably connected; the tweezers further comprise a rotation locking unit, wherein the rotation locking unit locks the rotation between the two supporting arms, or the rotation locking unit locks the rotation of the supporting arm connected with the tweezers arm.

In the technical scheme, after the tweezers clamp the chip, the rotation between the two support arms or the rotation of the support arms connected with the tweezers arms is locked by the rotation locking unit, so that the two tweezers arms and the two support arms can not rotate relatively, and the two tweezers arms clamp the object. For example, when welding a chip, a welding engineer can clamp the chip by the two forceps arms without pinching the two forceps arms hard, so that the welding difficulty is reduced.

In a preferred embodiment of the present invention, when the rotation locking unit locks the rotation between the two support arms, the two support arms are respectively a first support arm and a second support arm, the rotation locking unit includes a first connection block fixed on the first support arm and a second connection block fixed on the second support arm, the first connection block and the second connection block are rotatably connected through a rotation shaft, the first connection block is provided with a clamping groove, the second connection block is provided with a latch intermittently clamped and matched with the clamping groove, and the clamping groove is clamped and matched with the latch to lock the rotation between the first support arm and the second support arm; or the latch is arranged on the first connecting block, and the clamping groove is arranged on the second connecting block.

In the technical scheme, the clamping teeth are clamped and matched with the clamping grooves, so that the rotation between the first supporting arm and the second supporting arm is locked; through making the latch break away from the draw-in groove, untie the locking of first support arm and second support arm, simple structure, convenient operation.

In a preferred embodiment of the present invention, the number of the slots is multiple, and the multiple slots are circumferentially distributed at intervals outside the rotating shaft.

Among the above-mentioned technical scheme, after setting up a plurality of draw-in grooves, people's accessible makes the draw-in groove joint of latch and different positions and control tweezers's closed angle to but this two tweezers arms that make this tweezers can the self-holding article of different thickness, application range is wider.

In a preferred embodiment of the present invention, the plurality of slots are circumferentially and uniformly distributed outside the rotating shaft, the number of the latch teeth is plural, the number of the latch teeth is smaller than or equal to the number of the slots, and the plurality of latch teeth and the slots are correspondingly arranged.

Among the above-mentioned technical scheme, the quantity of latch and draw-in groove is a plurality ofly, when carrying out the locking to the rotation between first support arm and the second support arm, a plurality of latches and a plurality of draw-in groove joint cooperation, and locking effect is better.

In a preferred embodiment of the present invention, the rotating shaft is fixedly or rotatably connected to the first connecting block, one end of the rotating shaft away from the first connecting block is connected to a third connecting block, the second connecting block is sleeved on the rotating shaft and located between the first connecting block and the third connecting block, and when the latch is engaged with the slot, an abdicating space is provided between the second connecting block and the third connecting block.

In the technical scheme, when the first supporting arm and the second supporting arm are unlocked, on one hand, the third connecting block plays a limiting role, and the third connecting block can prevent the second limiting block from being separated from the rotating shaft; on the other hand, be convenient for the welding engineer with thumb and forefinger extrusion second support arm and third connecting block simultaneously, make the latch break away from the draw-in groove, it is more convenient to operate.

In another preferred embodiment of the present invention, the second support arm is further fixedly connected with a fourth connecting block disposed opposite to the first connecting block, the first connecting block is located between the second connecting block and the fourth connecting block, and when the latch is engaged with the slot, an abdicating space is provided between the first connecting block and the fourth connecting block.

Among the above-mentioned technical scheme, through setting up the fourth connecting block, when untiing the locking of first support arm and second support arm, the welding engineer extrudees fourth connecting block and third connecting block simultaneously with thumb and forefinger, alright make the latch break away from the draw-in groove, and the third connecting block is on a straight line with the fourth connecting block moreover, and the atress is more even.

In another preferred embodiment of the present invention, the rotation locking unit further includes a first spring sleeved outside the rotation shaft, and the first spring is pressed between the second connection block and the third connection block; under the effect of first spring, latch and draw-in groove joint cooperation, take place elastic deformation through making first spring, the latch can break away from the draw-in groove, unties the locking of first support arm and second support arm.

Among the above-mentioned technical scheme, first spring is established between second connecting block and third connecting block, when carrying out the locking to the rotation between first support arm and the second support arm, the elasticity of first spring makes the joint cooperation of latch and draw-in groove inseparabler for the locking effect is better.

In another preferred embodiment of the present invention, the rotation locking unit further includes a second spring pressed between the first connecting block and the fourth connecting block; under the effect of second spring, the latch can cooperate with the draw-in groove joint, and through making first spring take place elastic deformation, the latch can break away from the draw-in groove, unties the locking of first support arm and second support arm.

Among the above-mentioned technical scheme, the second spring is established between first connecting block and fourth connecting block, when carrying out the locking to the rotation between first support arm and the second support arm, the elasticity of second spring makes the joint cooperation of latch and draw-in groove inseparabler for the locking effect is better.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of forceps with a locking function according to a first embodiment.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is an exploded view of the forceps with locking function according to the first embodiment.

Reference numerals in the drawings of the specification include: the forceps comprise a first forceps arm 10, a second forceps arm 20, a first supporting arm 30, a second supporting arm 40, a fixed shaft 51, a rotating shaft 52, a rotation locking unit 60, a first connecting block 61, a clamping groove 611, a second connecting block 62, a clamping tooth 621, a third connecting block 63, a fourth connecting block 64 and a first spring 65.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

Example one

The embodiment provides a pair of tweezers with a locking function, as shown in fig. 1-3, in a preferred embodiment, the pair of tweezers includes two tweezer arms, for example, a first tweezer arm 10 on the left and a second tweezer arm 20 on the right, rear ends of the two tweezer arms are fixedly connected, front ends of the two tweezer arms are spaced from each other to form a free end, and the two tweezer arms are integrally formed or separately arranged and then fixedly connected into a whole. The upper end of the first forceps arm 10 is rotatably connected with a first support arm 30 through a fixed shaft 51, the upper end of the second forceps arm 20 is also rotatably connected with a second support arm 40 through the fixed shaft 51, and the first support arm 30 and the second support arm 40 are rotatably connected through a rotating shaft 52. The forceps of the present embodiment further include a rotation locking unit 60, and the rotation locking unit 60 locks the rotation between the first support arm 30 and the second support arm 40.

By adopting the technical scheme, the rotation between the two support arms is locked by the rotation locking unit 60, so that the first forceps arm 10, the second forceps arm 20, the first support arm 30 and the second support arm 40 cannot rotate relatively, and the closing angle of the two forceps arms of the forceps is ensured.

For example, when the tweezers of the present invention are used to clamp a chip for welding, a welding engineer unlocks the two support arms by operating the rotation locking unit 60, pinches the two tweezers arms to clamp the chip, and locks the rotation between the two support arms by the rotation locking unit 60 after clamping the chip. When welding is carried out, a welding engineer holds the tweezers to align the chip to the position, the two tweezers arms can be not pinched hard any more, and the chip is clamped by the two tweezers arms under the rotation of the locking unit 60, so that the work of the welding engineer is reduced, and the welding difficulty is reduced.

In another preferred embodiment, the rotation locking unit 60 includes a first connecting block 61 fixed to the end of the first support arm 30 away from the first forceps arm 10, and a second connecting block 62 fixed to the end of the second support arm 40 away from the second forceps arm 20, and the first connecting block 61 and the second connecting block 62 are rotatably connected by the rotating shaft 52, thereby rotatably connecting the first support arm 30 and the second support arm 40. The first connecting block 61 and the first supporting arm 30 are integrally formed or separately arranged and then fixedly connected into a whole, and the second connecting block 62 and the second supporting arm 40 are integrally formed or separately arranged and then fixedly connected into a whole. The lower end of the first connecting block 61 is provided with a clamping groove 611, and the upper end of the second connecting block 62 is provided with a clamping tooth 621 intermittently clamped and matched with the clamping groove 611.

In the present embodiment, the first support arm 30 and the second support arm 40 are both made of an elastic material, such as a steel strip or a plastic strip. After the two forceps arms clamp the chip, the clamping groove 611 is clamped and matched with the clamping tooth 621 under the action of no external force, so as to lock the rotation between the first support arm 30 and the second support arm 40. After the welding is finished, when the chip needs to be loosened, the first supporting arm 30 and the second supporting arm 40 are elastically deformed, so that the first connecting block 61 and the second connecting block 62 are far away from each other, the latch 621 is separated from the clamping groove 611, the locking of the first supporting arm 30 and the second supporting arm 40 is unlocked, and the tweezers are opened under the elastic action of the tweezers to loosen the clamped chip. Next, the welding engineer releases the first support arm 30 and the second support arm 40, and the deformed support arms are deformed to allow the latch 621 to be engaged with the engaging groove 611.

Note that the latch 621 may be provided on the first connection block 61, and the latch groove 611 may be provided on the second connection block 62.

In another preferred embodiment, the number of the slots 611 is plural, and the plural slots 611 are circumferentially spaced apart from each other and distributed on the outer side of the rotating shaft 52. After the plurality of clamping grooves 611 are arranged, people can control the closing angle of the tweezers by clamping the clamping teeth 621 with the clamping grooves 611 at different positions, so that the two tweezers arms of the tweezers can automatically clamp articles with different thicknesses.

Further preferably, the plurality of clamping grooves 611 are circumferentially and uniformly distributed outside the rotating shaft 52, the number of the clamping teeth 621 is multiple, the number of the clamping teeth 621 is equal to the number of the clamping grooves 611, and the clamping teeth 621 and the clamping grooves 611 are correspondingly arranged. It should be noted that the number of the latch 621 may also be smaller than the number of the card slot 611, that is, the latch 621 is not correspondingly disposed at a position where the card slot 611 is partially disposed.

In another preferred embodiment, the rotating shaft 52 is fixedly or rotatably connected to the lower end of the first connecting block 61, and the lower end of the rotating shaft 52, which is far away from the first connecting block 61, is fixedly or rotatably connected to the third connecting block 63. The center of the second connecting block 62 is provided with a through hole, the second connecting block 62 is sleeved outside the rotating shaft 52 through the through hole and is located between the first connecting block 61 and the third connecting block 63, and when the latch 621 is in clamping fit with the clamping groove 611, a yielding space is formed between the second connecting block 62 and the third connecting block 63.

After the third connecting block 63 is arranged, when the locking of the first supporting arm 30 and the second supporting arm 40 is unlocked, a welding engineer presses the second supporting arm 40 downwards and presses the third connecting block 63 upwards at the same time, for example, the thumb and the forefinger simultaneously press the second supporting arm 40 and the third connecting block 63, so that the latch 621 can be separated from the clamping groove 611, and the operation is convenient.

In another preferred embodiment, the second supporting arm 40 is further fixedly connected with a fourth connecting block 64 opposite to the first connecting block 61, the fourth connecting block 64 is located above the second connecting block 62, the first connecting block 61 is located between the second connecting block 62 and the fourth connecting block 64, and when the latch 621 is in clamping fit with the clamping groove 611, an abdicating space is also formed between the first connecting block 61 and the fourth connecting block 64. The welding engineer can simultaneously press the fourth connecting block 64 and the third connecting block 63 by a thumb and a forefinger to separate the latch 621 from the clamping groove 611, so that the operation is simple; and the third connecting block 63 and the fourth connecting block 64 are in a straight line, so that the stress is more uniform.

In another preferred embodiment, the rotation locking unit 60 further includes a first spring 65 sleeved on the rotating shaft 52, the first spring 65 is pressed between the second connecting block 62 and the third connecting block 63, preferably, the upper end of the first spring 65 is fixedly connected to the lower end of the second connecting block 62, and the lower end of the first spring 65 is fixedly connected to the upper end of the third connecting block 63. The first spring 65 is a compression spring, and under the action of the first spring 65, the latch 621 is in clamping fit with the clamping groove 611. When the fourth connecting block 64 and the third connecting block 63 are pressed, the first spring 65 is compressed, the latch 621 is disengaged from the latch groove 611, and the first support arm 30 is unlocked from the second support arm 40. After the fourth connecting block 64 and the third connecting block 63 are released, the compressed first spring 65 recovers to deform so that the latch 621 is in clamping fit with the clamping groove 611.

Example two

The structure principle of this embodiment is substantially the same as that of the first embodiment, except that a first spring 65 is not disposed between the second connecting block 62 and the third connecting block 63, but a second spring is disposed between the first connecting block 61 and the fourth connecting block 64, the second spring is also a compression spring, the upper end of the second spring is fixedly connected with the lower end of the fourth connecting block 64, and the lower end of the second spring is fixedly connected with the upper end of the first connecting block 61.

EXAMPLE III

The structure principle of the embodiment is basically the same as that of the first embodiment and the second embodiment, and the difference is that the position of the rotation locking unit 60 is different, in this embodiment, the rotation locking unit 60 locks the rotation of the forceps arm and the support arm connected thereto, specifically, the rotation locking unit 60 locks the rotation between the first forceps arm 10 and the first support arm 30, or the rotation locking unit 60 locks the rotation between the second forceps arm 20 and the second support arm 40.

In the embodiment, the rotation of the forceps arm and the support arm connected with the forceps arm is locked by rotating the locking unit 60, so that the first forceps arm 10, the second forceps arm 20, the first support arm 30 and the second support arm 40 cannot rotate relatively, and the closing angle of the two forceps arms of the forceps is ensured.

In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The forceps with the locking function comprise two forceps arms, wherein the rear ends of the two forceps arms are fixedly connected, and the front ends of the two forceps arms are mutually spaced to form a free end; the forceps are characterized in that the forceps arms are rotatably connected with supporting arms, and the two supporting arms are rotatably connected;

the forceps holder further comprises a rotation locking unit, wherein the rotation locking unit locks the rotation between the two supporting arms, or the rotation locking unit locks the rotation of the forceps arm and the supporting arm connected with the forceps arm.

2. The tweezers with the locking function according to claim 1, wherein when the rotation locking unit locks the rotation between the two support arms, the two support arms are respectively a first support arm and a second support arm, the rotation locking unit comprises a first connecting block fixedly arranged on the first support arm and a second connecting block fixedly arranged on the second support arm, the first connecting block and the second connecting block are rotatably connected through a rotating shaft, a clamping groove is arranged on the first connecting block, a clamping tooth intermittently clamped and matched with the clamping groove is arranged on the second connecting block, and the clamping groove and the clamping tooth are clamped to lock the rotation between the first support arm and the second support arm;

or the latch is arranged on the first connecting block, and the clamping groove is arranged on the second connecting block.

3. The forceps with locking function of claim 2, wherein the number of the clamping grooves is multiple, and the multiple clamping grooves are circumferentially distributed at intervals outside the rotating shaft.

4. The tweezers with the locking function according to claim 3, wherein the plurality of clamping grooves are circumferentially and uniformly distributed outside the rotating shaft, the number of the clamping teeth is multiple, the number of the clamping teeth is smaller than or equal to that of the clamping grooves, and the plurality of clamping teeth and the clamping grooves are arranged correspondingly.

5. The tweezers with the locking function according to any one of claims 2 to 4, wherein the rotating shaft is fixedly or rotatably connected with the first connecting block, one end of the rotating shaft, which is far away from the first connecting block, is connected with a third connecting block, the second connecting block is sleeved on the rotating shaft and is located between the first connecting block and the third connecting block, and when the latch is in clamping fit with the clamping groove, an abdicating space is formed between the second connecting block and the third connecting block.

6. The tweezers with the locking function according to claim 5, wherein the second support arm is further fixedly connected with a fourth connecting block opposite to the first connecting block, the first connecting block is located between the second connecting block and the fourth connecting block, and an abdicating space is formed between the first connecting block and the fourth connecting block when the latch is engaged with the slot.

7. The tweezers with the locking function according to claim 5, wherein the rotation locking unit further comprises a first spring sleeved outside the rotation shaft, and the first spring is pressed between the second connecting block and the third connecting block;

under the effect of first spring, latch and draw-in groove joint cooperation take place elastic deformation through making first spring, the latch can break away from the draw-in groove unties the locking of first support arm and second support arm.

8. The forceps with locking function of claim 6, wherein the rotation locking unit further comprises a second spring pressed between the first connecting block and the fourth connecting block;

under the effect of second spring, the latch can cooperate with the draw-in groove joint, takes place elastic deformation through making first spring, the latch can break away from the draw-in groove unties the locking of first support arm and second support arm.