CN217943060U - Caliper with shearing and pipe pressing functions and hydraulic tool - Google Patents

Abstract

The invention relates to the technical field of hydraulic tools, in particular to a caliper with shearing and pipe pressing functions and a hydraulic tool. One of them has calliper of shearing and pipe pressing function, includes: the front end of the left clamp arm is provided with a first pressure port and a first shearing port in parallel, and a first cutting edge is arranged in the first shearing port; the front end of the right clamp arm is provided with a second pressure port and a second shearing port in parallel, and a second cutting edge is arranged in the second shearing port; and the connecting plate is fixedly arranged on the left clamp arm and the right clamp arm through fixing pins, so that a crimping area is formed between the first crimping port and the second crimping port, and a shearing area for placing the steel cable is formed between the first cutting edge and the second cutting edge. The invention realizes multiple functions of one tool by arranging the shearing port capable of shearing and the compression joint port capable of compression joint on the calipers, and solves the problems of inconvenient use and excessive load on a user, which are caused by carrying a plurality of tools and influence on the working efficiency in the prior art.

Description

Caliper with shearing and pipe pressing functions and hydraulic tool

Technical Field

The invention relates to the technical field of hydraulic tools, in particular to a caliper with shearing and pipe pressing functions and a hydraulic tool.

Background

In the prior escalator or bridge, guard railings are generally installed for safety, and the guard railings are formed by combining and connecting steel wire ropes (steel cables) and fixed columns, and the steel wire ropes (steel cables) have certain flexibility and better buffering property and can play a better safety protection role.

For example, chinese patent 2016205622689 discloses a combination of a cable guard and a protection net for preventing children from falling in an empty area of an escalator, wherein the installation of the cable guard generally comprises the steps of crimping a stainless steel sleeve at the end of a cable, forming a thread on the stainless steel sleeve, inserting the stainless steel sleeve into a fixing column, and fixing by the thread.

In the existing installation process, due to the fact that the site size is different and the environment is different, the stainless steel sleeve cannot be crimped to the steel cable firstly, the steel cable with the proper length needs to be sheared according to actual conditions, and then the stainless steel sleeve is crimped, so that normal installation can be guaranteed.

However, the functions of the existing working tools are generally single and only can be used for crimping or shearing, and in the use scene of the steel cable guardrail, a plurality of tools need to be carried, so that the use is inconvenient, too large load is generated on the mounting seat, and the normal working efficiency is influenced.

Disclosure of Invention

The invention aims to provide a caliper with shearing and pipe pressing functions and a hydraulic tool, wherein the caliper is provided with a shearing port capable of shearing and a pressing port capable of pressing, so that multiple functions of one tool can be realized, and the problems that in the prior art, a plurality of tools need to be carried, the use is inconvenient, too large load is generated on a user, and the working efficiency is influenced are solved.

The purpose of the invention is realized as follows:

a caliper having shear and crimp functionality, comprising:

the front end of the left clamp arm is provided with a first pressure port and a first shearing port in parallel, and a first cutting edge is arranged in the first shearing port;

the front end of the right clamp arm is provided with a second pressure port and a second shearing port in parallel, and a second cutting edge is arranged in the second shearing port;

and the connecting plate is fixedly arranged on the left clamp arm and the right clamp arm through fixing pins, so that a crimping area is formed between the first crimping port and the second crimping port, and a shearing area for placing the steel cable is formed between the first cutting edge and the second cutting edge.

Preferably, a first blade is detachably mounted in the first shearing opening, a first arc-shaped shearing groove is formed in the end part of the first blade, and the first blade is arranged in the first shearing opening;

a second blade is detachably mounted in the second shearing opening, a second arc-shaped shearing groove is formed in the end part of the second blade, and a second blade is arranged in the second shearing opening;

and the steel cable in the shearing area is sheared through the matching of the first cutting edge and the second cutting edge.

Preferably, the opposite surfaces of the front end of the left clamp arm and the front end of the right clamp arm are respectively provided with a guide groove, and the end parts of the first blade and the second blade respectively movably extend into the corresponding guide grooves and are abutted against the side walls of the guide grooves.

Preferably, the first arc-shaped shearing groove is obliquely arranged at the end part of the first blade, the end part of the first arc-shaped shearing groove, which is close to the front end of the left forceps arm, extends outwards to form a first guide part, and the first guide part is in butt joint with the side wall of the first guide groove and is movably abutted against the side wall of the first guide part;

the second arc-shaped shearing groove is obliquely arranged at the end part of the second blade, the end part of the second arc-shaped shearing groove, which is close to the front end of the right forceps arm, extends outwards to form a second guide part, and the second guide part is in butt joint with the side wall of the second guide groove and is movably abutted against the side wall of the second guide groove;

the first guide part and the second guide part firstly extend into the guide groove, and then the steel cable is cut.

Preferably, the opposite surfaces of the left clamp arm and the right clamp arm are provided with mounting grooves, the two mounting grooves are combined to form a mounting cavity, and a steel ball is arranged in the mounting cavity.

Preferably, the middle parts of the left clamp arm and the right clamp arm are provided with grooves, a spring is arranged between the left clamp arm and the right clamp arm, and two ends of the spring are respectively arranged in the grooves.

A hydraulic tool, comprising:

a body in which a power device is installed;

the calipers are arranged at the front end of the machine body, and the rear ends of the calipers are connected with the power device;

the power device controls the calipers to carry out shearing or crimping operation.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

1. the design of the invention is that the corresponding crimping port and the corresponding shearing port are respectively formed on the left clamp arm and the right clamp arm, so that one clamp can realize crimping operation or shearing operation, a plurality of tools are not required to be carried during use, and the crimping operation and the shearing operation can be carried out by only one tool, so that the steel cable protective guard is simpler and more convenient to install, meanwhile, the number of tools is reduced, the burden on the body of a user is also reduced, and the working efficiency of the user is further ensured.

2. In the shearing process, the guide groove is used for restraining the first blade and the second blade and then shearing, so that the shearing gap between the first blade and the second blade can be maintained in the shearing process, the shearing effect is ensured, the problem of poor shearing effect caused by deformation of the first blade or the second blade is avoided in the shearing process, and the flatness of a shearing surface is ensured in the avoidance of dislocation.

3. The first arc-shaped shearing groove and the second arc-shaped shearing groove are obliquely arranged and can be matched with arc-shaped movement of the left clamp arm and the right clamp arm to ensure arc-shaped shearing during shearing, the shearing force is better, the shearing effect is smoother, and the condition that the end part of a steel cable is subjected to wire explosion after shearing is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the hidden housing of the present invention.

Figure 3 is an exploded view of the caliper of the present invention.

FIG. 4 is a schematic view of the left jawarm of the present invention.

FIG. 5 is a schematic view of the caliper of the present invention in an open position.

FIG. 6 is a schematic view of the caliper of the present invention in a preliminary closed position.

Fig. 7 is a schematic structural view of the present invention in a fully closed state.

FIG. 8 is a schematic view of the configuration of the guide slot and guide portion of the caliper of the present invention in engagement.

FIG. 9 is a schematic view of a caliper with a connecting plate hidden on one side according to the present invention.

FIG. 10 is a cross-sectional view of a caliper of the present invention.

Reference numerals are as follows: 1. a body; 2. a power plant; 3. a motor; 4. a speed reducer; 5. a hydraulic mechanism; 6. a caliper; 7. a left clamp arm; 8. pressing the first connector; 9. cutting a first cut; 10. a first blade; 11. a right jawarm; 12. pressing a second connector; 13. a second shearing opening; 14. a second blade; 15. a connecting plate; 16. a fixing pin; 17. a crimping area; 18. a cutting area; 19. a first blade; 20. a first arc-shaped shearing groove; 21. a second blade; 22. a circular arc-shaped shearing groove II; 23. a guide groove; 24. a first guide part; 25. a second guide part; 26. mounting grooves; 27. a steel ball; 28. a groove; 29. a spring.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a hydraulic tool includes: the pipe shearing and pressing machine comprises a machine body 1 and calipers 6 with the pipe shearing and pressing functions, wherein a power device 2 and a control device are installed in the machine body 1, the power device 2 comprises a battery, a motor 3, a speed reducer 4 and a hydraulic mechanism 5, the battery supplies power, the control device controls the work of the motor 3, and the calipers 6 are installed at the front end of the machine body 1 and connected with the end part of a piston of the hydraulic mechanism 5; the control device controls the work of the motor 3, and the motor 3 drives the hydraulic mechanism 5 to work through the speed reducer 4, so that the caliper 6 can carry out shearing or crimping work.

As shown in fig. 3, wherein said caliper 6 comprises: the left clamp arm 7, the right clamp arm 11 and the connecting plate 15;

first connecting hole and second connecting hole have been seted up respectively to the left and right sides of connecting plate 15, left tong arm 7 and right tong arm 11 correspond and have seted up left through-hole and right through-hole, and two fixed pins 16 pass first connecting hole and left through-hole, second connecting hole and right through-hole respectively and link to each other connecting plate 15 with left tong arm 7, right tong arm 11, in order to prevent fixed pin 16's removal, especially block on fixed pin 16 and be equipped with the circlip, and the circlip laminating is in the lateral surface of connecting plate 15.

Referring to fig. 3 to 7, the left clamp arm 7 and the right clamp arm 11 are respectively rotated around the fixing pin 16, so that the front end of the left clamp arm 7 and the front end of the right clamp arm 11 are far away from or close to each other, wherein a first pressure port 8 and a first shear port 9 are arranged in parallel at the front end of the left clamp arm 7, and the first shear port 9 is close to the front end of the left clamp arm 7; a second pressure port 12 and a second shearing port 13 are arranged at the front end of the right clamp arm 11 in parallel, and the second shearing port 13 is close to the front end part of the right clamp arm 11;

the first crimping port 8 and the second crimping port 12 form a crimping area 17, and the first cutting edge 10 and the second cutting edge 14 form a shearing area 18 for placing the steel cable.

The detailed structure of the cutout region 18 is as follows:

as shown in fig. 4, a first blade 19 is detachably mounted in the first shearing opening 9, a first circular-arc-shaped shearing groove 20 is formed in the end portion of the first blade 19, and the first blade 10 is formed in the first shearing opening 9;

a second blade 21 is detachably mounted in the second shearing opening 13, a second arc-shaped shearing groove 22 is formed in the end part of the second blade 21, and the second blade 14 is formed in the second shearing opening 13;

the steel rope in the cutting area 18 is cut through the cooperation of the first blade 10 and the second blade 14.

The crimping areas 17 are arranged in two groups, the two groups are different in size, the crimping area 17 with the larger caliber is closer to the front end of the caliper 6, the movement tracks of the left caliper arm 7 and the right caliper arm 11 rotate around the fixing pin 16, the smaller crimping area 17 is more reasonable in position on the inner side, and the use range of crimping can be enlarged.

The design of the invention is that the corresponding crimping port and the corresponding shearing port are respectively formed on the left clamp arm 7 and the right clamp arm 11, so that one clamp 6 can realize crimping operation or shearing operation, and when in use, a plurality of tools are not required to be carried, and the crimping operation and the shearing operation can be carried out only by one tool, so that the installation of the steel cable protective guard is simpler and more convenient, meanwhile, the reduction of the tools also reduces the burden on the body of a user, and further ensures the working efficiency of the user.

The specific structure of the first blade 19 and the second blade 21 is as follows:

as shown in fig. 4, the guide grooves 23 are formed in the opposite surfaces of the front end of the left clamp arm 7 and the front end of the right clamp arm 11, and the side surfaces of the guide grooves 23 penetrate through the corresponding first shearing openings 9 and the corresponding second shearing openings 13, so that after the first blade 19 and the second blade 21 are installed, the side surfaces of the first blade 19 and the second blade 21 are not in contact with any part, and during shearing, the abutting friction of the side walls of the first blade 19 and the second blade 21 is ensured, thereby maintaining the original shearing gap and ensuring the shearing effect.

With reference to fig. 5 to 8, during cutting, the end of the first blade 19 and the end of the second blade 21 are inserted into the corresponding guide slots 23, and then the steel cable is cut. Can guarantee like this at the shearing in-process, maintain the shearing clearance between the blade 19 and the blade 21, guarantee the shearing effect, avoid shearing in-process, because the deformation of blade 19 or blade two 21, the poor problem of shearing effect that brings guarantees the level and smooth of shear plane, and the emergence of avoiding the dislocation condition still simultaneously guarantees going on smoothly of shearing process.

Meanwhile, the first arc-shaped shearing groove 20 is obliquely arranged at the end part of the first blade 19, and the end part of the first arc-shaped shearing groove 20, which is close to the front end of the left tong arm 7, extends outwards to form a first guide part 24, namely the end part of the first arc-shaped shearing groove 20, which is close to the front end of the left tong arm 7, extends outwards to form a first guide part 24, the length of the first guide part 24 is greater than that of the other end, so that the first guide part 24 can enter the guide groove 23 firstly during shearing.

The interval of front end is the biggest, and the structure of restraint is less, takes place deformation more easily, influences the shearing, and this problem can be solved in foretell design, utilizes the cooperation between longer guide part 24 and the guide way 23 to retrain, avoids deformation, guarantees shearing effect and efficiency.

The first arc-shaped shearing groove 20 and the second arc-shaped shearing groove 22 are obliquely arranged and can be matched with arc-shaped movement of the left clamp arm 7 and the right clamp arm 11 to ensure arc-shaped shearing during shearing, so that the shearing force is better, the shearing effect is smoother, and the condition that the end part of a steel cable is subjected to wire explosion after shearing is avoided.

After the arrangement, the section of the end part of the cut steel cable is basically maintained in the original shape, so that the steel cable can be conveniently inserted into a stainless steel pipe fitting and is convenient for subsequent compression joint.

Otherwise, the end of the steel cable after wire explosion needs to be processed, and the end face of the steel cable can be inserted for crimping after the shape of the end face is matched with that of the stainless steel pipe fitting. The steel cable sheared by the invention does not have the problems and can accelerate the efficiency.

Meanwhile, the first arc-shaped shearing groove 20 and the second arc-shaped shearing groove 22 are inclined towards the crimping area 17 and are matched with arc-shaped movement of the left clamp arm 7 and the right clamp arm 11, so that shearing force on the steel cable can be gradually sheared from the front end to the rear end, and the shearing section is smoother and smoother by matching with the arc-shaped shearing blade, and the condition of wire explosion is effectively avoided.

As shown in fig. 9-10, the opposite surfaces of the left clamp arm 7 and the right clamp arm 11 are provided with mounting grooves 26, the two mounting grooves 26 are combined to form a mounting cavity, a steel ball 27 is arranged in the mounting cavity, and the steel ball 27 is located at the front side of the tension spring. The arrangement of the steel ball 27 can prevent the left clamp arm 7 and the right clamp arm 11 from being dislocated in the closing process, and the accuracy of the structure is enhanced.

The middle parts of the left clamp arm 7 and the right clamp arm 11 are respectively provided with a groove 28, a spring 29 is arranged between the left clamp arm 7 and the right clamp arm 11, and two ends of the spring 29 are respectively arranged in the grooves 28.

There are many possible mounting conditions for the spring 29:

two ends of the first spring 29 are respectively abutted in the grooves 28, so that the front ends of the left clamp arm 7 and the right clamp arm 11 tend to approach each other, a part to be crimped can be firstly placed in the crimping area 17 during crimping, the purpose of pre-clamping is achieved by using the spring 29, and subsequent crimping can be conveniently and smoothly carried out.

However, when cutting, the rear ends of the left and right arms 7 and 11 must be manually pressed to open the front ends against the elastic force of the spring 29, and then the wire rope must be placed in the cutting area 18, and then the machine cuts the wire rope.

The second one is that spring 29 adopts the extension spring, sets up the elasticity cylindric lock in the bottom of recess 28, and the both ends of extension spring are hung respectively and are established on the elasticity cylindric lock, and the setting of extension spring helps making the front end of left tong arm 7 and right tong arm 11 remain the state of normally opening all the time under the effect of not having the external force, facilitates the use.

As for the design and structure of the body 1, reference may be made to the chinese patent 2019102031083, and no further description is provided.

The design of the present invention is applied in the actual use as follows:

the protective guard of the escalator or the protective guard of the bridge is generally positioned at a high position, the installation process is very troublesome, generally, the protective guard is hung in the air or ascended by a ladder, therefore, when the protective guard is installed, the protective guard can be assembled only by carrying the tool of the invention and then shearing and pressing, the tool is not required to be replaced in the air, the protective guard is more convenient to use, meanwhile, the weight is lighter than that of the prior protective guard using a plurality of tools together, no overlarge burden is generated, the use is more convenient, and the efficiency can be ensured.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A caliper having a shear and crimp function, comprising:

the front end of the left clamp arm (7) is provided with a first pressure port (8) and a first shearing port (9) in parallel, and a first cutting edge (10) is arranged in the first shearing port (9);

the front end of the right clamp arm (11) is provided with a second pressure port (12) and a second shearing port (13) in parallel, and a second cutting edge (14) is arranged in the second shearing port (13);

and the connecting plate (15) is fixedly arranged on the left clamp arm (7) and the right clamp arm (11) through a fixing pin (16), so that a crimping area (17) is formed between the first crimping port (8) and the second crimping port (12), and a shearing area (18) for placing the steel cable is formed between the first cutting edge (10) and the second cutting edge (14).

2. The caliper with shear and crush function according to claim 1, wherein:

a first blade (19) is detachably mounted in the first shearing opening (9), a first arc-shaped shearing groove (20) is formed in the end part of the first blade (19), and the first blade (10) is arranged in the first shearing opening (9);

a second blade (21) is detachably mounted in the second shearing opening (13), a second arc-shaped shearing groove (22) is formed in the end part of the second blade (21), and the second blade (14) is arranged in the second shearing opening (13);

the steel cable in the cutting area (18) is cut through the cooperation of the first blade (10) and the second blade (14).

3. The caliper with shear and crush function according to claim 2, wherein:

the opposite surfaces of the front end of the left clamp arm (7) and the front end of the right clamp arm (11) are respectively provided with a guide groove (23), and the end parts of the first blade (19) and the second blade (21) respectively movably extend into the corresponding guide grooves (23) and are abutted against the side walls of the guide grooves (23).

4. The caliper with shear and crush function according to claim 3, wherein:

the first arc-shaped shearing groove (20) is obliquely arranged at the end part of the first blade (19), the end part, close to the front end of the left clamp arm (7), of the first arc-shaped shearing groove (20) extends outwards to form a first guide part (24), and the first guide part (24) is in butt joint with the side wall of the guide groove (23) in a movable abutting mode;

the second arc-shaped shearing groove (22) is obliquely arranged at the end part of the second blade (21), the end part, close to the front end of the right clamp arm (11), of the second arc-shaped shearing groove (22) extends outwards to form a second guide part (25), and the second guide part (25) is in butt joint with the side wall of the second guide groove (23) in a movable abutting joint manner;

the first guide part (24) and the second guide part (25) firstly extend into the guide groove (23) and then complete the shearing of the steel cable.

5. The caliper with shear and crush function according to claim 1, wherein:

mounting grooves (26) are formed in the opposite surfaces of the left clamp arm (7) and the right clamp arm (11), two mounting grooves (26) are combined to form a mounting cavity, and a steel ball (27) is arranged in the mounting cavity.

6. Caliper with shear and crush tube function according to claim 1, characterized by:

the middle parts of the left clamp arm (7) and the right clamp arm (11) are respectively provided with a groove (28), a spring (29) is arranged between the left clamp arm (7) and the right clamp arm (11), and two ends of the spring (29) are respectively arranged in the grooves (28).

7. A hydraulic tool, comprising:

a machine body (1) in which a power device (2) is installed;

the caliper with shear and crush tube function (6) according to any one of claims 1 to 6, which is installed at the front end of the body (1) and the rear end is connected with the power unit (2);

the power device (2) controls the calipers (6) to carry out shearing or crimping operation.

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