CN212192775U

CN212192775U - Parallel clamp

Info

Publication number: CN212192775U
Application number: CN202020338460.6U
Authority: CN
Inventors: 段勇芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-12-22
Anticipated expiration: 2030-03-18

Abstract

A user controls a main pushing piece to move along the length direction of a handle through a driving part, so that two connecting rods at a first hinge part are driven to push two jaw arms, the two jaw arms are opened in parallel, an object to be clamped is placed in a clamping opening formed by the opened jaw arms, the driving part is controlled to rotate reversely, the two jaw arms are closed in parallel, and the object to be clamped is clamped; when the object to be clamped is a fragile object, a user can push the main pushing piece through the kneading arms on the two sides of the handle so as to control the two jaw arms to be opened in parallel, because the first spring is arranged between the kneading arm and the elastic pressing groove, and the jaw arms are opened in parallel, the first spring is in a stretching state.

Description

Parallel clamp

Technical Field

The utility model relates to a machine tool field specifically is a parallel clamp.

Background

The clamp is a tool commonly used in life, clamps are needed to clamp objects in many working occasions, most of the current clamps are manual clamps, a user can clamp the jaws through kneading a force-receiving arm of the clamp, and the clamp is easy to fatigue after being used for a long time, therefore, an electric clamp appears on the market, the electric clamp generally drives the jaws through a built-in electric push rod to save the physical strength of the user, but the traditional electric clamp has a place needing improvement:

firstly, the jaw of the traditional clamp is a V-shaped opening, the moving track of the jaw is arc-shaped when the jaw is occluded, and the moving angle is changed, so that the stressed time and the stressed size of different parts of a clamped object are different, and the clamped object can be separated from the jaw in some special occasions;

secondly, when the traditional clamp uses the electric screw rod to push the jaw, the clamping force of the jaw is difficult to master, and if the clamped object is made of fragile materials, the clamped object is easy to damage.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problems, the utility model provides a parallel clamp, this clamp have the parallel interlock keep silent for it is even by the atress on the different positions of centre gripping thing, and this clamp both can keep silent by motor drive and be used for the article that the centre gripping hardness is high, save physical power, accessible manual regulation keeps silent again, in order to be used for the breakable article of centre gripping.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme:

a parallel clamp comprises a shell, a jaw arm, a main pushing piece, a kneading arm and a driving part, wherein the shell comprises a clamp head and a handle which are integrally connected, a first accommodating cavity is arranged in the clamp head, the first accommodating cavity is opened outwards, a first moving groove is arranged at the opening, elastic pressing grooves communicated with the first accommodating cavity are arranged on two sides of one end, close to the clamp head, of the handle, and a second accommodating cavity is also arranged in the handle; the two jaw arms are movably arranged in the first moving groove, and can be mutually parallel to close and open; the main pushing piece is arranged in the first accommodating cavity and comprises a first hinge part and a second hinge part, the first hinge part and the second hinge part are respectively hinged with two connecting rods, and one ends, far away from the main pushing piece, of the two connecting rods at the first hinge part are respectively hinged with the bottoms of the two jaw arms, so that when the main pushing piece moves towards the jaw arms, the two jaw arms are in a mutually opened state; the two kneading arms are respectively arranged in the elastic pressing grooves on the two sides of the handle and are respectively hinged with the two connecting rods at the second hinge parts, and a first spring is arranged between the kneading arms and the elastic pressing grooves so as to enable the two kneading arms to be in a mutually far state; the driving part is arranged in the second accommodating cavity and used for driving the main pushing piece to move along the length direction of the handle, and then the two jaw arms are driven to mutually close and open.

Preferably, the first movable groove is provided with a limiting groove on two sides, the jaw arms are provided with limiting blocks corresponding to the limiting grooves, and the limiting grooves are connected with the limiting blocks in a matched mode, so that the two jaw arms can keep a parallel state when being closed and opened.

Preferably, a through groove is formed between the second accommodating cavity and the first accommodating cavity, a push rod is arranged at the bottom of the main pushing piece and movably arranged in the through groove, a moving cavity is further arranged in the push rod, and an output end of the driving portion is movably arranged in the moving cavity.

Preferably, the driving part is an electric push rod, one end of a moving rod of the electric push rod is arranged in the moving cavity, an end is arranged at the joint of the moving rod of the electric push rod and the moving cavity, and the end can abut against the two ends of the moving cavity so as to drive the main pushing piece to move along the length direction of the handle through the end.

Preferably, the embodiment of the present invention further includes a blade, wherein a blade groove is formed inside the jaw arm, the blade groove is opened towards the mutual engagement direction of the two jaw arms, the blade is disposed in the blade groove, and the blade edge of the blade can protrude out of the blade groove.

Preferably, the blade is provided with a convex block and a positioning column, the convex block is arranged on one side of the blade far away from the cutting edge, adjusting bolts are arranged on two sides of the two jaw arms far away from the occlusion port, the adjusting bolts are in threaded connection with the jaw arms, and one ends of the adjusting bolts abut against the convex block; be equipped with the constant head tank on the arm of keeping silent, and be equipped with two locating holes in the constant head tank, reference column and blade threaded connection, and the reference column runs through the constant head tank and can block in arbitrary locating hole to carry out the fastening position to the blade.

Preferably, the side of the blade provided with the lug is also provided with an elastic pressing block, and the elastic pressing block is fixed on the inner side of the cutter groove through a bolt.

(III) advantageous effects

The utility model provides a pair of parallel clamp, when needing to centre gripping the article that hardness is big, the user controls main pushing element through the drive division and moves along handle length direction, makes main pushing element draw close toward the tong arm portion to order to two connecting rods of first articulated portion department and promote two tong arms, make two tong arms open in parallel each other, place the article that treats centre gripping in the nip mouth that two tong arms open and form, control the reverse rotation of drive division, and then make two tong arms draw close in parallel each other, will treat that centre gripping article presss from both sides tightly; when the object to be clamped is a fragile object, in order to prevent the object to be clamped from being damaged, a user can close the driving part, the kneading arms on the two sides of the handle are used for pushing the main pushing piece, so that the two jaw arms are controlled to be opened in parallel, the first spring is arranged between the kneading arm and the elastic pressing groove, and after the jaw arms are opened in parallel, the first spring is in a stretching state.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic diagram of the overall structure of the present invention;

fig. 2 shows a schematic diagram of the overall structure of the present invention;

figure 3 shows a cross-sectional view of the present invention;

FIG. 4 shows an enlarged view at D in FIG. 3;

fig. 5 shows a schematic structural view of the housing of the present invention;

FIG. 6 shows a cross-sectional view of FIG. 5;

fig. 7 shows a part of the structure diagram of the invention;

fig. 8 shows a schematic diagram of a part of the structure of the present invention;

fig. 9 shows a schematic diagram of a part of the structure of the present invention;

fig. 10 shows a schematic diagram of a part of the structure of the present invention;

fig. 11 shows a schematic diagram of a part of the structure of the present invention;

fig. 12 shows a schematic view of the jaw arm and blade of the present invention;

FIG. 13 shows a cross-sectional view of FIG. 12;

fig. 14 shows a schematic view of the structure of the blade of the present invention.

In the figure: the tool comprises a shell 1, a through groove 1A, a binding clip 11, a first accommodating cavity 110, a first moving groove 111, a limiting groove 1110, a handle 12, a spring pressing groove 120, a moving column 120a, a second accommodating cavity 121, a jaw arm 2, a knife groove 20, a positioning groove 2a, a positioning hole 2a1, a limiting block 210, a main pushing part 3, a connecting rod 30, a first hinging part 31, a second hinging part 32, a pushing rod 33, a moving cavity 330, a kneading arm 4, a first spring 41, a second moving groove 42, a driving part 5, a moving rod 51, a tip 510, a blade 6, a bump 61, a positioning column 62, a spring pressing block 63, a second spring 64 and an adjusting bolt 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 14, a pair of parallel pliers comprises a housing 1, a jaw arm 2, a main pushing piece 3, a kneading arm 4 and a driving part 5, wherein the housing 1 comprises a pliers head 11 and a handle 12, the pliers head 11 and the handle 12 are integrally connected, a first accommodating cavity 110 is arranged in the pliers head 11, the first accommodating cavity 110 is open outwards and provided with a first moving groove 111, both sides of one end, close to the pliers head 11, of the handle 12 are provided with elastic pressing grooves 120 communicated with the first accommodating cavity 110, and a second accommodating cavity 121 is further arranged in the handle 12; the two jaw arms 2 are movably arranged in the first moving groove 111B, and the two jaw arms 2 can be mutually parallel to draw close and open; the main pushing piece 3 is arranged in the first accommodating cavity 110, the main pushing piece 3 comprises a first hinge portion 31 and a second hinge portion 32, the first hinge portion 31 and the second hinge portion 32 are respectively hinged with two connecting rods 30, and one ends, far away from the main pushing piece 3, of the two connecting rods 30 at the first hinge portion 31 are respectively hinged with the bottoms of the two jaw arms 2, so that when the main pushing piece 3 moves towards the jaw arms 2, the two jaw arms 2 are in a mutually opened state, the bottoms of the jaw arms protrude into the first accommodating cavity 110, and the tops of the jaw arms protrude out of the first moving groove 111 and are used for clamping an object; the two kneading arms 4 are respectively arranged in the elastic pressing grooves 120 on the two sides of the handle 12 and are respectively hinged with the two connecting rods 30 at the second hinged parts 32, and a first spring 41 is arranged between the kneading arms 4 and the elastic pressing grooves 120 so as to enable the two kneading arms 4 to be in a mutually-far state; the driving part 5 is disposed in the second accommodating cavity 121 and is used for driving the main pushing part 3 to move along the length direction of the handle 12, so as to drive the two jaw arms 2 to close and open each other.

In summary, when an object with high hardness needs to be clamped, a user controls the main pushing member 3 to move along the length direction of the handle 12 through the driving portion 5, so that the main pushing member 3 is moved closer to the forceps arm portion, the two connecting rods 30 at the first hinge portion 31 are driven to push the two forceps jaw arms 2, the two forceps jaw arms 2 are opened in parallel, the object to be clamped is placed in a clamping opening formed by opening the two forceps jaw arms 2, the driving portion 5 is controlled to rotate reversely, and the two forceps jaw arms 2 are moved closer in parallel, so that the object to be clamped is clamped; when the object to be clamped is a fragile object and the object to be clamped is damaged, in order to prevent the object to be clamped from being damaged, a user can close the driving part 5, the kneading arms 4 on the two sides of the handle 12 are used for pushing the main pushing piece 3, and then the two jaw arms 2 are controlled to be opened in parallel, because the first springs 41 are arranged between the kneading arms 4 and the elastic pressing grooves 120, and the jaw arms 2 are opened in parallel, the first springs 41 are in a stretching state, when the user releases the kneading arms 4, the first springs 41 are reset under elastic acting force, and the kneading arms 4 are pushed to reset, so that the two jaw arms 2 are closed in parallel, and the object to be clamped is fixed at the jaw, therefore, when the kneading arms 4 are used, the elastic force of the first springs 41 determines the mutual clamping force of the two jaw arms 2; in addition, the kneading arm 4 is further provided with a second moving groove 42, the pressing groove 120 is provided with a moving post 120a corresponding to the second moving groove 42, and the second moving groove 42 and the moving post 120a are slidably connected to prevent the kneading arm 4 from being separated from the pressing groove 120 during use.

It should be noted that, in order to facilitate the user to control the driving portion, the utility model also comprises a control mainboard and two control buttons electrically connected with the driving portion, and an internal power supply for supplying power to the driving portion, the user can drive the driving portion to drive the two jaw arms 2 to open in parallel by pressing the first control button, and drive the driving portion to drive the two jaw arms 2 to close in parallel by pressing the second control button; on the other hand, the main push piece 3, each connecting rod 30, the jaw arm 2 and the kneading arm 4 are fixed at the hinged points by detachable bolts so as to facilitate replacement and maintenance.

Referring to fig. 5 to 8, two sides of the first moving groove 111 are provided with a limiting groove 1110, the jaw arms 2 are provided with limiting blocks 210 corresponding to the limiting groove 1110, and the limiting grooves 1110 are connected with the limiting blocks 210 in a matching manner, so that the two jaw arms 2 keep parallel when being closed and opened.

Referring to fig. 3 to fig. 6, a through groove 1A is formed between the second accommodating chamber 121 and the first accommodating chamber 110, a push rod 33 is disposed at the bottom of the main pushing member 3, the push rod 33 is movably disposed in the through groove 1A, a moving chamber 330 is further disposed in the push rod 33, and an output end of the driving portion 5 is movably disposed in the moving chamber 330; the driving part 5 is an electric push rod, one end of a moving rod 51 of the electric push rod is arranged in the moving cavity 330, an end head 510 is arranged at the joint of the moving rod 51 of the electric push rod and the moving cavity 330, and the end head 510 can be abutted against the two ends of the moving cavity 330 so as to drive the main pushing part 3 to move along the length direction of the handle 12 through the end head 510.

In summary, in order to prevent the electric push rod from being interfered by the movement of the main push piece 3 when the kneading arm 4 is used, a push rod 33 with a moving cavity 330 is designed at the bottom of the main push piece 3, when the kneading arm 4 is in an initial state, an end 510 at one end of a moving rod 51 of the electric push rod abuts against the top end of the moving cavity 330, when the kneading arm 4 is used, the kneading arm 4 pushes the main push piece 3 to be close to the direction of the arm part of the clamp, and correspondingly, the end 510 moves to be close to the bottom end of the moving cavity 330 without affecting the motor output shaft of the electric push rod; in addition, when the electric push rod is used to push the main push piece 3, after the end 510 of the electric push rod is controlled to abut against the top end of the movable cavity 330, the movable rod 51 is continuously controlled to push the main push piece 3 to move toward the direction of the forceps arm portion, so that the two forceps jaw arms 2 can be opened, further, the control motor is reversely rotated, after the end 510 abuts against the bottom end of the movable cavity 330, the movable rod 51 is continuously controlled to pull the main push piece 3 to move away from the direction of the forceps arm portion, so that the two forceps jaw arms 2 can be moved toward each other.

Referring to fig. 11 to 14, in the embodiment of the present invention, a blade 6 is further included, a blade groove 20 is disposed inside the jaw arm 2, the blade groove 20 opens in the mutual engagement direction of the two jaw arms 2, the blade 6 is disposed in the blade groove 20, and the cutting edge of the blade 6 can protrude out of the blade groove 20; the blade 6 is provided with a convex block 61 and a positioning column 62, the convex block 61 is arranged on one side of the blade 6 far away from the cutting edge, two sides of the two jaw arms 2 far away from the occlusion opening are provided with adjusting bolts 7, the adjusting bolts 7 are in threaded connection with the jaw arms 2, and one end of each adjusting bolt 7 is abutted against the convex block 61; be equipped with constant head tank 2a on keeping silent arm 2, and be equipped with two locating hole 2a1 in the constant head tank 2a, reference column 62 and blade 6 threaded connection, and reference column 62 runs through constant head tank 2a and can block in arbitrary locating hole 2a1 to carry out the fastening position to blade 6.

In particular, the blade 6 is further provided with a spring pressing block 63 on the side provided with the projection 61, the spring pressing block 63 is fixed on the inner side of the knife groove 20 through a bolt, and the spring pressing block 63 is internally provided with a second spring 64.

In summary, the hidden blade 6 is disposed in the two jaw arms 2, when the blade 6 is needed to cut an object, a user first unscrews the positioning post 62 and takes the positioning post 62 out of the first positioning hole 2a1, so that the positioning post 62 is separated from the blade 6; then, by screwing the adjusting bolt 7, one end of the adjusting bolt 7 is abutted against the convex block 61 on the back side of the blade 6 to push the blade 6 to move along the opening direction of the cutter groove 20, and in the process, the second spring 64 in the elastic pressing block 63 is stressed, stretched and stored energy; when the blade 6 of the blade 6 protrudes through the pocket 20, the positioning post 62 is snapped into another positioning hole 2a1 and the positioning post 62 is tightened against the blade 6 to secure the blade 6 in the pocket 20 of the jaw arm 2.

Similarly, when the blade 6 is not needed, the positioning column 62 is firstly unscrewed, then the adjusting bolt 7 is screwed, so that the adjusting bolt 7 is gradually far away from the blade 6, at this time, the second spring 64 inside the elastic pressing block 63 releases energy to recover, the blade 6 is driven to return to the knife groove 20, the user clamps the positioning column 62 into the first positioning hole again, and the positioning column 62 is screwed, so that the positioning column 62 and the blade 6 are screwed tightly.

In particular, one end of the spring pressing block 63 is provided with a thread, and one side of the jaw arm 2 is also provided with a corresponding through hole, so that a bolt passes through the through hole and then is in threaded connection with the spring pressing block 63, the spring pressing block 63 is fixed on the inner side of the knife groove 20, and the bolt can be detached at any time, thereby facilitating the replacement of the blade 6.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A parallel clamp, comprising:

the clamp comprises a shell (1) and a clamping head (11), wherein the clamping head (11) and a handle (12) are integrally connected, a first accommodating cavity (110) is formed in the clamping head (11), the first accommodating cavity (110) is opened outwards, a first moving groove (111) is formed in the opening, elastic pressing grooves (120) communicated with the first accommodating cavity (110) are formed in two sides of one end, close to the clamping head (11), of the handle (12), and a second accommodating cavity (121) is formed in the handle (12);

the two jaw arms (2) are movably arranged in the first moving groove (111), and the two jaw arms (2) can be mutually parallel to close and open;

the main pushing piece (3) is arranged in the first accommodating cavity (110), the main pushing piece (3) comprises a first hinge part (31) and a second hinge part (32), the first hinge part (31) and the second hinge part (32) are respectively hinged with two connecting rods (30), and one ends, far away from the main pushing piece (3), of the two connecting rods (30) at the first hinge part (31) are respectively hinged with the bottoms of the two jaw arms (2), so that when the main pushing piece (3) moves towards the jaw arms (2), the two jaw arms (2) are in a mutually opened state;

the two kneading arms (4) are respectively arranged in the elastic pressing grooves (120) on the two sides of the handle (12) and are respectively hinged with the two connecting rods (30) on the second hinge parts (32), and a first spring (41) is arranged between the kneading arms (4) and the elastic pressing grooves (120) so as to enable the two kneading arms (4) to be in a mutually-away state;

and the driving part (5) is arranged in the second accommodating cavity (121) and is used for driving the main pushing part (3) to move along the length direction of the handle (12) so as to drive the two jaw arms (2) to mutually close and open.

2. The parallel clamp according to claim 1, wherein two sides of the first moving groove (111) are provided with limiting grooves (1110), the jaw arms (2) are provided with limiting blocks (210) corresponding to the limiting grooves (1110), and the limiting grooves (1110) are connected with the limiting blocks (210) in a matched manner, so that the two jaw arms (2) can keep a parallel state when being closed and opened.

3. A parallel clamp according to claim 1, wherein a through slot (1A) is provided between the second accommodating chamber (121) and the first accommodating chamber (110), a push rod (33) is provided at the bottom of the main pushing member (3), the push rod (33) is movably disposed in the through slot (1A), a moving chamber (330) is further provided in the push rod (33), and the output end of the driving part (5) is movably disposed in the moving chamber (330).

4. The parallel clamp according to claim 3, wherein the driving part (5) is an electric push rod, one end of a moving rod (51) of the electric push rod is arranged in the moving cavity (330), a connecting part of the moving rod (51) of the electric push rod and the moving cavity (330) is provided with a head (510), and the head (510) can be abutted against two ends of the moving cavity (330) so as to drive the main pushing part (3) to move along the length direction of the handle (12) through the head (510).

5. A parallel clamp as claimed in claim 1, characterized in that it further comprises a blade (6), the jaw arms (2) are provided with a knife slot (20) inside, the knife slot (20) opens in the direction of mutual engagement of the two jaw arms (2), the blade (6) is arranged in the knife slot (20), and the edge of the blade (6) can protrude out of the knife slot (20).

6. The parallel clamp according to claim 5, wherein a convex block (61) and a positioning column (62) are arranged on the blade (6), the convex block (61) is arranged on one side of the blade (6) far away from the blade edge, adjusting bolts (7) are arranged on two sides of the two jaw arms (2) far away from the occlusion port, the adjusting bolts (7) are in threaded connection with the jaw arms (2), and one end of each adjusting bolt (7) is abutted against the convex block (61); be equipped with constant head tank (2a) on keeping silent arm (2), and be equipped with two locating hole (2a1) in constant head tank (2a), reference column (62) and blade (6) threaded connection, and in reference column (62) run through constant head tank (2a) and can block into arbitrary locating hole (2a1) to carry out the fastening position to blade (6).

7. A parallel clamp according to claim 6, characterized in that the blade (6) is provided with a spring block (63) on the side provided with the projection (61), the spring block (63) being fixed inside the knife slot (20) by means of a bolt.