CN217252246U

CN217252246U - Pipe expanding pliers

Info

Publication number: CN217252246U
Application number: CN202220978445.7U
Authority: CN
Inventors: 沈跃娟
Original assignee: Zhuji Itop Hardware Tools Co Ltd
Current assignee: Zhuji Itop Hardware Tools Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-26
Publication date: 2022-08-23
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a pipe wrench rises, clamp the handle, connect including fixed pincers handle, activity clamp the handle mount pad on the fixed pincers handle, connect rise tube head on the mount pad and connect the tip cone on the mount pad, the one end of tip cone is equipped with the pivot, the pivot is connected with the activity clamp handle through the pivot connecting block, be equipped with first cavity on the mount pad, be provided with ring gear, ring gear shell and shell piece that resets in the first cavity, the ring gear is connected in the pivot, the ring gear is located in the ring gear shell, still be provided with in the ring gear shell with ring gear complex pawl subassembly, be equipped with reset block and linkage piece on the ring gear shell, the shell resets and sets up the reset block with between the inner wall of first cavity, the linkage piece stretches out first cavity cooperatees with the activity clamp handle. The pipe expanding pliers of the utility model reduce the operation procedures and improve the working efficiency of users; the connection reliability of the pipeline is improved, and the operation is very convenient.

Description

Pipe expanding pliers

Technical Field

The utility model relates to a pipeline expanding tool, concretely relates to pipe tongs rises.

Background

The pipeline expanding tool has wide application range in the field of pipelines, for example, in domestic cold and hot water and household heating pipelines, a flexible pipe with extensibility needs to be expanded, so that the expanded flexible pipe is sleeved on another joint to realize the installation and connection of the pipeline.

When the pipe expanding pliers expand the pipe, the pipe expanding heads are expanded, as shown in fig. 1 and 2, a gap b exists between each pipe expanding piece a after the pipe expanding heads are expanded, and a boss d is formed at a part of an inner hole of the pipe c corresponding to the gap. In actual operation, many pipeline products can not once expand to the size of needs, need multiple operation, just can reach the dimensional requirement, and multiple operation can make the boss phenomenon more obvious, consequently need every bloated once all to require the user to rotate a position the expand tube head, avoid the problem that the boss appears in the pipeline hole, nevertheless the work process that increases like this undoubtedly, the user also can forget to rotate in many times, causes unqualified increase the rejection rate.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a technical scheme does:

the utility model provides a pipe wrench rises, includes fixed pincers handle, activity pincers handle, connects mount pad, connection on the fixed pincers handle are in rising tube head and connection on the mount pad are in the apex cone on the mount pad, the one end of apex cone is equipped with the pivot, the pivot through the pivot connecting block with the activity pincers handle is connected, be equipped with first cavity on the mount pad, be provided with ring gear, ring gear shell and shell piece that resets in the first cavity, the ring gear is connected in the pivot, the ring gear is located in the ring gear shell, still be provided with in the ring gear shell with ring gear complex pawl subassembly, be equipped with reset block and linkage piece on the ring gear shell, the shell piece that resets sets up reset block with between the inner wall of first cavity, the linkage piece stretches out first cavity with the activity pincers handle cooperatees.

The utility model discloses further set up to be equipped with the opening on the ring gear shell, the ring gear sets up in the opening, open-ended one side is seted up flutedly, pawl subassembly sets up in the recess, the periphery of ring gear is equipped with the external tooth, pawl subassembly includes that pawl and pawl reset, the pawl with the ring gear is connected, the pawl resets and sets up the pawl with between the inner wall of recess.

The utility model discloses further set up to the activity pincers handle with be connected with the articulated elements between the mount pad, be equipped with the protruding axle on the activity pincers handle, the linkage piece sets up the protruding axle is followed on the motion route that the activity pincers handle was opened.

The utility model discloses further set up to first cavity is close to one side of activity pincers handle is fixed with the shrouding, the shrouding with reserve between the first cavity and have the confession the breach of linkage piece action, the pivot connecting block with adopt the round pin axle to articulate between the movable handle, the movable groove has been seted up on the pivot connecting block, be equipped with the stopper in the pivot, the stopper is connected the movable inslot.

The utility model discloses further set up to still be equipped with the second cavity on the mount pad, the other end of apex cone is equipped with the pointed cone, it connects to rise the tube head the outer wall of second cavity, the pointed cone is located in the second cavity, the pointed cone follows the activity pincers handle rotates rise the tube head with remove between the mount pad.

The utility model discloses further set up to the pipe head that rises includes connecting seat and two at least pipe fittings that rise, the connecting seat is connected the outer wall of second cavity, be equipped with annular positioning groove on the connecting seat, be equipped with annular elastic component in the annular positioning groove, the pipe fitting swing joint respectively that rises is in the inner week of annular positioning groove, annular elastic component encircles the setting and is in on the pipe fitting that rises.

The utility model discloses further set up to the shell piece that resets is compression spring, compression spring's one end is supported reset on the piece, compression spring's the other end supports the inner wall of first cavity.

The utility model discloses further set up to the shell piece that resets is torsion spring, the torsion spring cover is established in the pivot, torsion spring's one end is connected on the mount pad, torsion spring's the other end with the reset block cooperatees.

Above-mentioned pipe pincers that rise reset piece and pawl subassembly through setting up ring gear, ring gear shell, shell in the pivot of apex cone, realize the pipe pincers that rise once open the rotation of in-process tube head that rises, and concrete working method is:

1. the movable clamp handle is opened, a convex shaft on the movable clamp handle pushes a linkage block to enable a gear ring shell to rotate in a forward direction, a shell reset piece is gradually compressed, a pawl assembly consisting of a pawl and a pawl reset piece enables a gear ring to rotate along with the gear ring shell to drive a rotating shaft to rotate, so that a tip cone rotates, the inner surface of each expansion pipe fitting is tightly attached to the pointed cone of the tip cone due to the contraction force of an annular elastic piece on the expansion pipe fitting, each expansion pipe fitting rotates along with the rotation of the tip cone, the rotating shaft of the tip cone is simultaneously pulled by the movable clamp handle in the opening process of the movable clamp handle, the tip cone is gradually separated from an expansion pipe head, and the pipe fitting stops rotating until the tip cone is completely separated from each expansion pipe fitting of an expansion pipe head;

2. the movable clamp handle is closed, the linkage block loses the pressing of the protruding shaft to the movable clamp handle, the gear ring shell reversely rotates to reset to an initial position under the action of the shell reset piece, in the process of the reverse rotation of the gear ring shell, a pawl assembly consisting of a pawl and a pawl reset piece only has surface contact with the gear ring and cannot drive the gear ring to rotate, the tip cone cannot rotate naturally, the rotating shaft of the tip cone of the movable clamp handle simultaneously receives the thrust of the movable clamp handle in the closing process, the tip cone is gradually pushed into the tube expanding head, each tube expanding piece of the tube expanding head expands to expand the pipeline, and the annular elastic piece is expanded.

The movable clamp handle of the pipe expanding clamp can rotate by a certain angle after each pipe expanding piece of the pipe expanding head is opened, so that a user can continuously operate, the pipe expanding head does not need to rotate after each expansion action is finished, the operation procedures are reduced, and the working efficiency of the user is improved; meanwhile, the connection quality of the pipeline is prevented from being influenced by the appearance of the boss in the inner hole of the pipeline, the connection reliability of the pipeline is improved, the expansion of the pipe expanding head of the pipe expanding clamp is realized by opening or closing the movable clamp handle, the rotation of the pipe expanding head can be realized by opening and closing the movable clamp handle, other operations are not needed, and the operation is very convenient.

The utility model provides a pipe wrench rises, includes fixed pincers handle, activity pincers handle, connects mount pad, connection on the fixed pincers handle are in rising tube head on the mount pad is connected with the apical cone on the mount pad, the one end of apical cone is equipped with the pivot, the pivot through the pivot connecting block with the activity pincers handle is connected, be equipped with first cavity on the mount pad, be provided with carousel and carousel piece that resets in the first cavity, the carousel is connected in the pivot, be equipped with reset block and linkage block on the carousel, the carousel piece that resets sets up reset block with between the inner wall of first cavity, the linkage block stretches out first cavity with the activity pincers handle cooperatees.

The utility model discloses further set up to first cavity is close to one side of activity pincers handle is fixed with the shrouding, the shrouding with it has the confession to reserve between the first cavity the breach of linkage piece action, the pivot connecting block with adopt the round pin axle to articulate between the movable handle, the movable groove has been seted up on the pivot connecting block, be equipped with the stopper in the pivot, the stopper is connected the movable inslot.

The utility model discloses further set up as the carousel piece that resets is compression spring, compression spring's one end is supported reset on the piece, compression spring's the other end is supported the inner wall of first cavity.

The utility model discloses further set up to carousel piece that resets is torsion spring, the torsion spring cover is established in the pivot, torsion spring's one end is connected on the mount pad, torsion spring's the other end with the reset block cooperatees.

Above-mentioned pipe pincers that rise reset the piece through setting up carousel and carousel in the pivot of apex cone, realize the pipe pincers that rise once open the rotation of in-process tube head that rises, and concrete working method is:

1. the movable clamp handle is opened, a convex shaft on the movable clamp handle pushes a linkage block to enable a rotary table to rotate in a forward direction, a rotary table resetting piece is gradually compressed to drive a rotary shaft to rotate, so that a tip cone rotates, the inner surface of each expansion pipe fitting is tightly attached to a pointed cone of the tip cone due to the contraction force of an annular elastic piece on the expansion pipe fitting, each expansion pipe fitting rotates along with the rotation of the tip cone, the rotary shaft of the tip cone is simultaneously pulled by the movable clamp handle in the opening process of the movable clamp handle, the tip cone is gradually separated from an expansion pipe head, and the expansion pipe fitting stops rotating until the tip cone is completely separated from each expansion pipe fitting of the expansion pipe head;

2. the movable clamp handle is closed, the linkage block loses the pressing of the protruding shaft to the movable clamp handle, the rotary table rotates reversely under the action of the rotary table reset piece, the rotary shaft of the tip cone of the movable clamp handle is simultaneously pushed by the movable clamp handle in the closing process, the tip cone is gradually pushed into the expanding pipe head, but in the rotary table reverse rotation process, a certain friction force is formed between each expanding pipe fitting of the expanding pipe head and an inner hole of a pipeline, so that the expanding pipe fitting does not rotate in the expanding action process, a certain friction force is generated by tightly attaching the tip cone of the tip cone to the inner surface of the expanding pipe fitting, the rotary table cannot be completely reset, the rotary table reset piece is still in a certain compression state, the tip cone of the tip cone enables each expanding pipe fitting of the expanding pipe head to be expanded, the pipeline is expanded, and the annular elastic piece is expanded.

Although the pipe expanding clamp of the utility model adopts the structure that the rotary plate-rotary plate resetting piece can be rotated and reset to cause the rotary plate to rotate when the movable clamp handle is closed, when the pipe expanding clamp is in actual use, the friction force between the pipe expanding piece and the pipeline is increased in the closing process of the movable clamp handle, so that the pipe expanding piece cannot be completely reset, and the pipe expanding piece has certain angle difference after the movable clamp handle is opened and closed, so that a user can continuously work without rotating the pipe expanding head after each expansion action is finished, thereby reducing the working procedures and improving the working efficiency of the user; meanwhile, the connection quality of the pipeline is prevented from being influenced by the appearance of the boss in the inner hole of the pipeline, the connection reliability of the pipeline is improved, the expansion of the pipe expanding head of the pipe expanding clamp is realized by opening or closing the movable clamp handle, the rotation of the pipe expanding head can be realized by opening and closing the movable clamp handle, other operations are not needed, and the operation is very convenient.

Drawings

FIG. 1 is a schematic view of an expanding pipe member in the prior art when expanded.

FIG. 2 is a schematic view of a pipe being non-rotatably expanded by a conventional pipe expanding tongs in the background art.

Fig. 3 is a perspective view of the pipe expanding clamp according to embodiment 1 of the present invention.

Fig. 4 is an exploded view of the pipe expanding clamp according to embodiment 1 of the present invention.

Fig. 5 is a perspective view of the tip cone rotation structure according to embodiment 1 of the present invention.

Fig. 6 is an exploded view of the embodiment 1 of the present invention driving about the tip cone rotating structure.

Fig. 7 is a schematic view of the rotating internal structure of the tip cone according to embodiment 1 of the present invention.

Fig. 8 is a partial sectional view of the pipe expanding tongs in embodiment 1 of the present invention.

Fig. 9 is a partial sectional view of another pipe expanding clamp according to embodiment 1 of the present invention.

Fig. 10 is an exploded view of another tip cone rotation driving structure according to embodiment 1 of the present invention.

Fig. 11 is a perspective view of the pipe expanding clamp according to embodiment 2 of the present invention.

Fig. 12 is an exploded view of the pipe expanding clamp according to embodiment 2 of the present invention.

Fig. 13 is a perspective view of the tip cone rotating structure according to embodiment 2 of the present invention.

Fig. 14 is a partial sectional view of the pipe expanding tongs in embodiment 2 of the present invention.

Fig. 15 is a partial sectional view of another pipe expanding clamp according to embodiment 2 of the present invention.

Fig. 16 is an exploded view of another tip cone rotation driving structure according to embodiment 2 of the present invention.

Fig. 17 is a schematic view of the expanded pipe clamp according to embodiment 1 or embodiment 2 of the present invention.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; either mechanically or electrically, or internally communicating two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meanings of the above terms according to specific situations.

Example 1

With reference to the accompanying drawings 3 to 8, the technical scheme of the present invention is an expanding pipe wrench, including a fixed wrench handle 1, a movable wrench handle 2, a mounting base 3 connected to the fixed wrench handle 1, an expanding pipe head 4 connected to the mounting base 3, and a tip cone 5 connected to the mounting base 3, wherein one end of the tip cone 5 is provided with a rotating shaft 51, the rotating shaft 51 is connected to the movable wrench handle 2 through a rotating shaft connecting block 53, the mounting base 3 is provided with a first cavity 31, a gear ring 6, a gear ring housing 7 and a housing reset piece 8 are arranged in the first cavity 31, the gear ring 6 is connected to the rotating shaft 51, the gear ring 6 is located in the gear ring housing 7, the gear ring housing 7 is further provided with a pawl component matched with the gear ring 6, the gear ring housing 7 is provided with a reset block 71 and a linkage block 72, the housing reset piece 8 is arranged between the reset block 71 and the inner wall of the first cavity 31, the linkage block 72 extends out of the first cavity 31 to match with the movable forceps handle 2.

In this embodiment, an opening 73 is formed in the gear ring housing 7, the gear ring 6 is disposed in the opening 73, a groove 74 is formed in one side of the opening 73, the pawl assembly is disposed in the groove 74, external teeth 61 are disposed on the periphery of the gear ring 6, the pawl assembly includes a pawl 9 and a pawl resetting piece 10, a ratchet of the pawl 9 is connected with the external teeth 61 on the gear ring 6, and the pawl resetting piece 10 is disposed between the pawl 9 and an inner wall of the groove 74.

In this embodiment, a hinge 11 is connected between the movable forceps handle 2 and the mounting base 3, a protruding shaft 21 is disposed on the movable forceps handle 2, and the linkage block 72 is disposed on a movement path of the protruding shaft 21 along with the opening of the movable forceps handle 2. When the movable clamp handle is opened, the convex shaft on the movable clamp handle drives the gear ring shell to rotate through the linkage block.

In this embodiment, a sealing plate 12 is fixed to a side of the first cavity 31 close to the movable forceps handle 2, and a gap for the movement of the linkage block 72 is reserved between the sealing plate 12 and the first cavity 31. The shrouding can make the part that sets up at first cavity not receive external influence, guarantees the reliability of first cavity internals complex.

In this embodiment, the mounting base 3 is further provided with a second cavity 32, the other end of the tip cone 5 is provided with a pointed cone 52, the tube expansion head 4 is connected to the outer wall of the second cavity 32, the pointed cone 52 is located in the second cavity 32, and the pointed cone 52 moves between the tube expansion head 4 and the mounting base 3 along with the rotation of the movable forceps handle 2.

In this embodiment, the tube expansion head 4 includes a connecting base 41 and six tube expansion members 42, the connecting base 41 is connected to an outer wall of the second cavity 32, an annular positioning groove 43 is formed in the connecting base 41, an annular elastic member 44 is disposed in the annular positioning groove 43, the tube expansion members 42 are respectively movably connected to an inner periphery of the annular positioning groove 43, and the annular elastic member 44 is disposed around the tube expansion members 42. Annular elastic component encircles on each pipe fitting that rises and makes the pipe head that rises expand to exert the restoring force to each pipe fitting that rises after, realizes rising the reseing of pipe fitting, and annular elastic component makes the pipe fitting that rises can rotate along with the pointed cone to the effort of pipe fitting that rises.

In this embodiment, the connection portion between the rotating shaft 51 and the gear ring 6 is a polygonal square shaft, so that the gear ring 6 rotates to drive the rotating shaft 51 to rotate.

In this embodiment, the pawl assembly formed by the pawl 9 and the pawl resetting member 10 is matched with the gear ring 6 to realize unidirectional intermittent motion of the gear ring 6.

In this embodiment, the rotating shaft connecting block 53 is hinged to the movable handle 2 by a pin; the rotating shaft connecting block 53 is provided with a movable groove 54, the rotating shaft 51 is provided with a limiting block 55, and the limiting block 55 is connected in the movable groove 54, so that the movable handle 2 is used for pressing and pulling the tip cone 5, and the tip cone 5 can rotate.

In the present embodiment, the pawl return element 10 is a compression spring; the annular elastic member 44 is an annular tightening spring.

In this embodiment, the housing reset element 8 is a compression spring, one end of the compression spring abuts against the reset block 71, and the other end of the compression spring abuts against the inner wall of the first cavity 31.

In another embodiment, as shown in fig. 9 and 10, the housing returning element 8 is a torsion spring, the torsion spring is sleeved on the rotating shaft 51, one end of the torsion spring is connected to the mounting base 3, and the other end of the torsion spring is matched with the returning block 71.

The concrete working mode of the pipe expanding clamp of the embodiment is as follows:

The movable clamp handle of the pipe expanding clamp can rotate by a certain angle after each pipe expanding piece of the pipe expanding head is opened, so that a user can continuously work without rotating the pipe expanding head after each expansion action is finished, the working procedures are reduced, and the working efficiency of the user is improved; use the pipeline after the pipe wrench expansion of this embodiment 1 as shown in fig. 17, the hole of pipeline c does not have the boss, has avoided the pipeline hole boss to appear and has influenced the connection quality of pipeline, improves the connection reliability of pipeline, and the pipe wrench that just opens or closed activity pincers handle of expansion of realizing the pipe head that rises originally, and the rotation of the pipe head that rises is opened closed in-process by the activity pincers handle and can be realized, need not other operations, and the operation is very convenient.

Example 2

Combine fig. 11 to fig. 14, the utility model provides an expansion pipe wrench, including fixed pincers handle 1, activity pincers handle 2, connect mount pad 3, the connection on the fixed pincers handle 1 are in the mouth of pipe 4 that rises on the mount pad 3 is connected tip cone 5 on the mount pad 3, the one end of tip cone 5 is equipped with pivot 51, pivot 51 through pivot connecting block 53 with activity pincers handle 2 is connected, be equipped with first cavity 31 on the mount pad 3, be provided with carousel 13 and carousel reset 14 in the first cavity 31, carousel 13 is connected in the pivot 51, be equipped with reset block 131 and linkage block 132 on the carousel 13, the carousel resets 14 sets up reset block 131 with between the inner wall of first cavity 31, linkage block 132 stretches out first cavity 31 cooperatees with activity pincers handle 2.

In this embodiment, a hinge 11 is connected between the movable clamp handle 2 and the mounting base 3, a protruding shaft 21 is disposed on the movable clamp handle 2, and the linkage block 132 is disposed on a movement path of the protruding shaft 21 along with the opening of the movable clamp handle 2. When the movable clamp handle is opened, the convex shaft on the movable clamp handle drives the rotary table to rotate through the linkage block.

In this embodiment, a sealing plate 12 is fixed to a side of the first cavity 31 close to the movable clamp handle 2, and a gap for the movement of the linkage block 132 is reserved between the sealing plate 12 and the first cavity 31. The shrouding can make the part that sets up at first cavity not receive external influence, guarantees the reliability of first cavity internals complex.

In this embodiment, the tube expansion head 4 includes a connecting base 41 and six tube expansion members 42, the connecting base 41 is connected to the outer wall of the second cavity 32, an annular positioning groove 43 is formed in the connecting base 41, an annular elastic member 44 is disposed in the annular positioning groove 43, the tube expansion members 42 are respectively movably connected to the inner periphery of the annular positioning groove 43, and the annular elastic member 44 is disposed around the tube expansion members 42. Annular elastic component encircles and makes the pipe head that rises expand on each pipe fitting and to exert the restoring force to each pipe fitting that rises after, realizes the restoration of pipe fitting that rises, and annular elastic component makes the pipe fitting that rises can rotate along with the pointed cone to the effort of pipe fitting that rises.

In this embodiment, the connection portion between the rotating shaft 51 and the rotating disc 13 is a polygonal square shaft, so that the rotating disc 13 rotates to drive the rotating shaft 51 to rotate.

In this embodiment, the rotating shaft connecting block 53 is hinged to the movable handle 2 by a pin; the rotating shaft connecting block 53 is provided with a movable groove 54, the rotating shaft 51 is provided with a limiting block 55, and the limiting block 55 is connected in the movable groove 54, so that the movable handle 2 can press and pull the tip cone 5 to move, and the tip cone 5 can rotate.

In this embodiment, the turntable resetting member 14 is a compression spring, one end of the compression spring abuts against the resetting block 71, and the other end of the compression spring abuts against the inner wall of the first cavity 31.

In another embodiment, as shown in fig. 15 and 16, the housing returning element 14 is a torsion spring, the torsion spring is sleeved on the rotating shaft 51, one end of the torsion spring is connected to the mounting base 3, and the other end of the torsion spring is engaged with the returning block 71.

The working method of the pipe expanding clamp is different from that of the embodiment 1, and the pipe expanding clamp is lack of a pawl component compared with that of the embodiment 1, so that the tip cone can drive the pipe expanding head to rotate in a small range after the movable clamp handle is closed, but the pipe expanding piece can still rotate by a certain angle before and after the pipe expanding head expands when the pipe expanding clamp is used, and the concrete working method is as follows:

Although the pipe expanding clamp of the embodiment adopts a structure that the rotary plate and the rotary plate resetting piece can be rotated and reset to cause the rotary plate to rotate when the movable clamp handle is closed, when the pipe expanding clamp is actually used, the friction force between the pipe expanding piece and a pipeline is increased in the closing process of the movable clamp handle to cause the pipe expanding piece not to be completely reset, so that the pipe expanding piece has a certain angle difference after the movable clamp handle is opened and after the movable clamp handle is closed, a user can continuously operate, the pipe expanding head does not need to rotate after the expansion action is finished every time, the operation procedures are reduced, and the working efficiency of the user is improved; use the pipeline after 2 pipe tongs that rise of this embodiment expand as figure 17, pipeline c's hole does not have the boss, has avoided the pipeline hole boss to appear and has influenced the connection quality of pipeline, improves the connection reliability of pipeline, and the pipe tongs that just opens or close movable vice handle in the expansion that the pipe head was realized rising originally, and the rotation that rises the pipe head is opened closed in-process by movable vice handle and can be realized, need not other operations, and the operation is very convenient.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. An expansion pipe wrench is characterized by comprising a fixed wrench handle, a movable wrench handle, a mounting seat connected with the fixed wrench handle, an expansion pipe head connected with the mounting seat and a tip cone connected with the mounting seat, one end of the tip cone is provided with a rotating shaft which is connected with the movable clamp handle through a rotating shaft connecting block, the mounting seat is provided with a first cavity, the first cavity is internally provided with a gear ring, a gear ring shell and a shell reset piece, the gear ring is connected on the rotating shaft, the gear ring is positioned in the gear ring shell, a pawl component matched with the gear ring is also arranged in the gear ring shell, the gear ring shell is provided with a reset block and a linkage block, the shell reset piece is arranged between the reset block and the inner wall of the first cavity, and the linkage block extends out of the first cavity and is matched with the movable clamp handle.

2. The pipe expanding clamp according to claim 1, wherein an opening is formed in the gear ring shell, the gear ring is arranged in the opening, a groove is formed in one side of the opening, the pawl assembly is arranged in the groove, external teeth are arranged on the periphery of the gear ring, the pawl assembly comprises a pawl and a pawl resetting piece, the pawl is connected with the gear ring, and the pawl resetting piece is arranged between the pawl and the inner wall of the groove.

3. The pipe expanding clamp as claimed in claim 1, wherein a hinge is connected between the movable clamp handle and the mounting base, a protruding shaft is arranged on the movable clamp handle, and the linkage block is arranged on a movement path of the protruding shaft along with the opening of the movable clamp handle.

4. The pipe expanding tongs as claimed in claim 1, wherein a sealing plate is fixed to one side of the first cavity close to the movable tongs handle, a gap for the movement of the linkage block is reserved between the sealing plate and the first cavity, the rotating shaft connecting block is hinged to the movable tongs handle by a pin shaft, a movable groove is formed in the rotating shaft connecting block, a limiting block is arranged on the rotating shaft, and the limiting block is connected to the movable groove.

5. The pipe expanding clamp as claimed in claim 1, wherein a second cavity is further formed in the mounting base, a pointed cone is arranged at the other end of the tip cone, the pipe expanding head is connected to the outer wall of the second cavity, the pointed cone is located in the second cavity, and the pointed cone moves between the pipe expanding head and the mounting base along with the rotation of the movable clamp handle.

6. The pipe expanding pliers as claimed in claim 5, wherein the pipe expanding head comprises a connecting seat and at least two pipe expanding members, the connecting seat is connected to the outer wall of the second cavity, the connecting seat is provided with a circular positioning groove, a circular elastic member is arranged in the circular positioning groove, the pipe expanding members are movably connected to the inner circumference of the circular positioning groove, and the circular elastic member is arranged around the pipe expanding members.

7. The pipe wrench according to any one of claims 1-6, wherein the housing return element is a compression spring, one end of the compression spring abuts against the return block, and the other end of the compression spring abuts against the inner wall of the first cavity.

8. The pipe wrench according to any one of claims 1-6, wherein the housing return element is a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the mounting base, and the other end of the torsion spring is matched with the return block.

9. The utility model provides a pipe wrench that rises, its characterized in that, include fixed pincers handle, activity pincers handle, connect mount pad on the fixed pincers handle, connect rise the tube head on the mount pad and connect and be in the apical cone on the mount pad, the one end of apical cone is equipped with the pivot, the pivot through the pivot connecting block with the activity pincers handle is connected, be equipped with first cavity on the mount pad, be provided with carousel and carousel piece that resets in the first cavity, the carousel is connected in the pivot, be equipped with reset block and linkage piece on the carousel, the carousel piece that resets sets up reset block with between the inner wall of first cavity, the linkage piece stretches out first cavity with the activity pincers handle cooperatees.

10. The pipe expanding tongs as claimed in claim 9, wherein a hinge is connected between the movable tongs handle and the mounting base, a protruding shaft is provided on the movable tongs handle, and the linkage block is provided on a movement path of the protruding shaft along with the opening of the movable tongs handle.

11. The pipe expanding clamp according to claim 9, wherein a sealing plate is fixed to one side of the first cavity close to the movable clamp handle, a notch for the linkage block to move is reserved between the sealing plate and the first cavity, the rotating shaft connecting block is hinged to the movable clamp handle through a pin shaft, a movable groove is formed in the rotating shaft connecting block, and a limiting block is arranged on the rotating shaft and connected to the movable groove.

12. The pipe expanding forceps according to claim 9, wherein the mounting base is further provided with a second cavity, the other end of the tip cone is provided with a pointed cone, the pipe expanding head is connected to the outer wall of the second cavity, the pointed cone is located in the second cavity, and the pointed cone moves between the pipe expanding head and the mounting base along with the rotation of the movable forceps handle.

13. The pipe expanding pliers as claimed in claim 12, wherein the pipe expanding head comprises a connecting seat and at least two pipe expanding members, the connecting seat is connected to the outer wall of the second cavity, the connecting seat is provided with a circular positioning groove, a circular elastic member is arranged in the circular positioning groove, the pipe expanding members are movably connected to the inner circumference of the circular positioning groove, and the circular elastic member is arranged around the pipe expanding members.

14. The pipe wrench according to any one of claims 9-13, wherein the rotary table return element is a compression spring, one end of the compression spring abuts against the return block, and the other end of the compression spring abuts against the inner wall of the first cavity.

15. The pipe wrench as claimed in any one of claims 9 to 13, wherein the rotary plate return member is a torsion spring, the torsion spring is sleeved on the rotary shaft, one end of the torsion spring is connected to the mounting base, and the other end of the torsion spring is matched with the return block.