CN214870149U

CN214870149U - Special wrench for connecting large-diameter composite pipe joint

Info

Publication number: CN214870149U
Application number: CN202023133040.3U
Authority: CN
Inventors: 贾康康
Original assignee: Baoji Tianlian Huitong Composite Material Co ltd
Current assignee: Baoji Tianlian Huitong Composite Material Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-11-26
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a heavy-calibre composite pipe connects special spanner, the spanner is including acting on the chucking arm of attach fitting outer wall and being used for the handle to chucking arm application of force, chucking arm inner wall is equipped with the application of force and is in on the draw-in groove of attach fitting outer wall, and avoid the attach fitting outer wall receives this application of force effect bending deformation's force application device. The force application devices are clamping blocks which are arranged on the inner wall of the clamping arm at intervals and matched with the clamping grooves, the height of the clamping block close to one side of the handle is smaller than that of the clamping groove, and the heights of the rest clamping blocks are equal to that of the clamping groove. The wrench can distribute acting force on the wrench evenly to the corresponding outer wall surface of the connecting joint, the problem that the wrench is unbalanced in force application and causes the connecting joint and the composite pipe to be bent and deformed is avoided, the tightness and the sealing performance of the connecting joint and the composite pipe are improved, and the service life of the composite pipe is prolonged.

Description

Special wrench for connecting large-diameter composite pipe joint

Technical Field

The utility model relates to a compound union coupling technical field especially relates to a heavy-calibre composite pipe connects special spanner.

Background

The composite pipe is a pipe body formed by compounding various materials, has the advantages of various composite materials, and has the integrated advantages of high temperature resistance, corrosion resistance, high strength, light weight and the like, and is widely applied. The composite pipe is the same as a common pipeline, and the composite pipe needs to be connected in a longer use environment. The common composite pipe has higher plastic deformation and lower strength compared with a metal pipe, and unbalanced force application of an operation tool matched with the connecting joint exists in the process of assembling the connecting joint and the composite pipe, so that the bending deformation of the connecting joint and the composite pipe is caused, and the sealing property and the service life of the composite pipe are influenced.

Disclosure of Invention

To the problem that exists, the utility model aims at providing a special spanner suitable for compound pipe and attach fitting, this spanner can be with the balanced outer wall that distributes the attach fitting is corresponding on it of effort, avoids the unbalanced problem that leads to attach fitting and compound pipe bending deformation of spanner application of force, improves the fastening nature and the leakproofness that attach fitting and compound union coupling.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a special spanner is connected to heavy-calibre composite pipe joint which characterized in that: the spanner is including acting on the chucking arm of attach fitting outer wall and being used for the handle to the chucking arm application of force, chucking arm inner wall is equipped with the application of force and is in on the draw-in groove of attach fitting outer wall, and avoid the attach fitting outer wall receives this application of force effect bending deformation's force application device.

Preferably, the force application device is clamping blocks which are arranged on the inner wall of the clamping arm at intervals and matched with the clamping grooves, the clamping blocks on one side close to the handle are smaller than the clamping grooves, and the rest clamping blocks are as high as the clamping grooves.

Preferably, the clamping arm is divided into a left half arm and a right half arm which are symmetrically hinged along the length of the clamping arm, and the end faces of the left half arm and the right half arm, which are located from the hinge point to the inner side of the clamping arm, are respectively set as limiting faces for keeping the left half arm and the right half arm tightly attached and fastened under the wrench force application state.

Preferably, the hinge point of the left half arm and the right half arm is provided with a torsion spring for closing the left half arm and the right half arm.

The utility model has the advantages that: the utility model provides a special spanner suitable for compound pipe and attach fitting realizes that the spanner can be with the balanced outer wall surface that distributes the attach fitting is corresponding of effort of spanner when the attach fitting fastens with compound pipe, avoids the unbalanced problem that leads to attach fitting and compound pipe bending deformation of spanner application of force, improves the fastening and the leakproofness that attach fitting and compound union coupling, prolongs the life of compound pipe.

Drawings

Fig. 1 is the overall structure schematic diagram of the special spanner of the present invention.

Fig. 2 is the overall structure schematic diagram of the connection joint of the present invention.

Fig. 3 is a schematic view of the special wrench and the connection joint of the present invention.

Fig. 4 is an enlarged view of fig. 3A according to the present invention.

Fig. 5 is an enlarged view of fig. 3B according to the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to fig. 1-5, the wrench 1 includes a clamping arm 11 (preferably, an arc structure matching with the connecting joint 2) acting on the outer wall of the connecting joint 2, and a handle 12 for applying force to the clamping arm 11. The clamping arm 11 is tightly sleeved on the outer wall of the connecting joint 2, and the connecting joint 2 is rotated by applying force to the handle 12, so that the mounting and dismounting operations of the connecting joint at the pipe orifice of the composite pipe are realized.

In order to improve the corrosion resistance of the pipeline, the composite pipe and the joint are often made of composite materials, and the composite materials have higher plastic deformation relative to metal materials, so that in the process of assembling the joint 2 and the composite pipe, the force applied by an operation tool matched with the joint 2 is unbalanced, so that the joint 2 and the composite pipe are bent and deformed, and the sealing performance of the joint 2 and the composite pipe is affected. Therefore, in order to solve this problem, the inner wall of the clamp arm 11 of the wrench 1 is provided with a biasing means for biasing the engaging groove 201 on the outer wall of the connection joint 2 and preventing the outer wall of the connection joint 2 from bending and deforming due to this biasing force. Through this force applying device, can be effectual with the balanced dispersion of the external force that applys on the handle 12 to connect 2 and on the compound pipe, receive the problem of external force bending deformation when having avoided both to fasten each other, improve the fastening nature and the leakproofness of connect 2 and compound pipe to the life of extension compound pipe.

Specifically, the force application device is a fixture block 13 which is arranged on the inner wall of the clamping arm 11 at an interval and is matched with the clamping groove 201, the height of the fixture block 13 close to one side of the handle 12 is smaller than the height of the clamping groove 201, and the heights of the rest of the fixture blocks 13 are equal to the height of the clamping groove 201. As shown in fig. 3, after a force is applied to the handle 12, the handle 12 has a downward component (a1) and a component force acting in the direction (a2) of the connection joint 2, and the component force (a2) acting toward the body of the connection joint 2 presses the connection joint 2 and the composite tube, which easily causes bending deformation of the connection joint 2 and the composite tube, so that, as shown in fig. 4, the height of the latch 13 near the handle 12 is smaller than the height of the engaging groove 201 to avoid the contact between the latch 13 and the engaging groove 201, so that the inner wall of the clamping arm 11 is integrally contacted with the outer wall of the connection joint 2, the contact between the latch 13 and the engaging groove 201 is transferred to the outer wall of the connection joint 2, the force-bearing area between the entire clamping arm 11 and the outer wall of the connection joint 2 is increased, and the deformation-resisting capability of the body of the connection joint 2 is improved. The other latch 13 except the latch 13 and the corresponding latch arm 11 are simultaneously acted by the handle 12 along the outer wall surface of the connecting joint 2, and have smaller acting force towards the body of the connecting joint 2, so that the latch 13 of the part is tightly attached to the slot 201, and the inner wall of the latch arm 11 is tightly attached to the outer wall surface of the connecting joint 2 (as shown in fig. 5), thereby realizing torsion action on the body of the connecting joint 2. Therefore, the above structure and action can make the action force of the wrench 1 evenly apply the force to the connection joint 2 to fasten the connection joint, and under the action, the problem that the connection joint 2 is bent and deformed due to the large action force of the handle 12 of the wrench 1 on the connection joint 2 is reduced or avoided.

Because spanner 1 cooperates when the attach fitting 2 application of force, other fixture blocks 13 and chucking arm 11 except the fixture block 13 near handle 12 all paste tight cooperation with attach fitting 2, and fixture block 13 and draw-in groove 201 all set up along circumference interval, and fixture block 13 can not be gone into smoothly when the whole length of chucking arm 11 is great and block 201 is gone into in, influences spanner 1's use. Therefore, in order to enable the clamping block 13 to be smoothly clamped and matched with the clamping groove 201, the clamping arm 11 is divided into a left half arm 11a and a right half arm 11b which are symmetrically hinged along the length of the clamping arm. Before the wrench 1 is matched with the connector 2, the left half arm 11a and the right half arm 11b are opened through the hinged part, then the fixture block 12 on the left half arm 11a or the right half arm 11b is matched with the u-bass clamping groove 201, and then the left half arm 11a or the right half arm 11b which is not matched is rotated, so that the fixture block 13 on the left half arm 11 is matched with the corresponding clamping groove 201, and the smooth matching of all the fixture blocks 13 on the clamping arm 11 and the clamping groove 201 on the connector 2 is realized.

Because the handle 12 is connected with the right half-arm 11b, in order to avoid unbalanced force application of the clamping arm 11 to the connecting joint 2 due to the fact that the acting force received by the right half-arm 11b is larger than that of the left half-arm 11a, the end surfaces of the left half-arm 11a and the right half-arm 11b, which are located at the hinge point to the inner side of the clamping arm 11, are set as limiting surfaces 11c for keeping the left half-arm 11a and the right half-arm 11b tightly attached and fastened under the force application state of the wrench 1 by the left half-arm 11a and the right half-arm 11 b. The purpose of the present invention is to ensure that when an external force is applied to the handle 12, the left half arm 11a and the right half arm 11b are kept in a fixed state, so that a large force applied to the right half arm 11b can be transmitted to the left half arm 11a, thereby achieving the balance of the forces applied to the clamp arm 11.

In order to avoid the risk that the latch 13 on the left half arm 11a is disengaged from the latch slot 201 during the application of force to the wrench 1, a torsion spring (not shown) is provided at the hinge point of the left half arm 11a and the right half arm 11b to close the two. Under the action of the torsion spring, the left half arm 11a and the right half arm 11b are always tightly attached to the outer wall surface of the connecting joint 2, so that the force application operation of the wrench 1 is facilitated.

The principle of the utility model is that: the utility model provides a special spanner 1 suitable for compound pipe and attach fitting 2, realizes that spanner 1 can be with the balanced outer wall surface that distributes to attach fitting 2 is corresponding of effort of spanner when fastening with compound pipe to attach fitting 2, avoids the unbalanced problem that leads to attach fitting 2 and compound pipe bending deformation of spanner 1 application of force, improves the fastening nature and the leakproofness that attach fitting 2 and compound union coupling are connected, prolongs the life of compound pipe.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a special spanner is connected to heavy-calibre composite pipe joint which characterized in that: spanner (1) is including acting on chucking arm (11) of attach fitting (2) outer wall and being used for handle (12) to chucking arm (11) application of force, chucking arm (11) inner wall is equipped with the application of force and is in on draw-in groove (201) of attach fitting (2) outer wall, and avoid attach fitting (2) outer wall receives this application of force effect bending deformation's force application device.

2. The special wrench for connecting the large-caliber composite pipe joint according to claim 1, characterized in that: the force application device is clamping blocks (13) which are arranged on the inner wall of the clamping arm (11) at intervals and matched with the clamping groove (201), the height of the clamping block (13) close to one side of the handle (12) is smaller than that of the clamping groove (201), and the heights of the rest clamping blocks (13) are equal to that of the clamping groove (201).

3. The special wrench for connecting the large-caliber composite pipe joint according to claim 2, characterized in that: chucking arm (11) are divided into symmetrical articulated left half arm (11a) and right half arm (11b) along its length, left half arm (11a) and right half arm (11b) are located the pin joint to the terminal surface of chucking arm (11) inboard one side all establishes left half arm (11a) and right half arm (11b) are in spanner (1) application of force state keeps left half arm (11a) and right half arm (11b) to hug closely spacing face (11c) of fastening.

4. The special wrench for connecting the large-caliber composite pipe joint according to claim 3, wherein: and a hinge point of the left half arm (11a) and the right half arm (11b) is provided with a torsion spring for closing the left half arm and the right half arm.