阅读说明：本技术 基于加热连接的pe管连接辅助装置 (PE pipe connection auxiliary device based on heating connection ) 是由 张鹏 于 2021-05-27 设计创作，主要内容包括：本发明涉及管道连接技术领域,具体地说,涉及基于加热连接的PE管连接辅助装置。其包括连接盒,连接盒的上侧设有连接盖,连接盒的内部左右对称设有下夹持装置,连接盖的一侧左右对称设有上夹持装置,连接盒内部靠近中部的位置设有加热连接装置；连接盒包括呈方形的连接座,连接座的内部靠近中部的位置开设有贯通连接座的连接插接槽；加热连接装置包括连接切割装置和电加热装置,连接切割装置包括呈圆柱形的中部承接柱,上夹持装置包括固定铰接滑板,固定铰接滑板的底部设有上夹持机构；下夹持装置包括呈半环状的下半环。本发明主要解决在对管材连接后,连接处会出现积压形成的突出物,需要操作人员使用工具将其刮除掉的问题。(The invention relates to the technical field of pipeline connection, in particular to a PE pipe connection auxiliary device based on heating connection. The heating device comprises a connecting box, wherein a connecting cover is arranged on the upper side of the connecting box, lower clamping devices are symmetrically arranged in the connecting box in the left-right direction, upper clamping devices are symmetrically arranged on one side of the connecting cover in the left-right direction, and a heating connecting device is arranged in the connecting box close to the middle part; the connecting box comprises a square connecting seat, and a connecting insertion groove which penetrates through the connecting seat is formed in the position, close to the middle part, inside the connecting seat; the heating connecting device comprises a connecting cutting device and an electric heating device, the connecting cutting device comprises a cylindrical middle bearing column, the upper clamping device comprises a fixed hinged sliding plate, and the bottom of the fixed hinged sliding plate is provided with an upper clamping mechanism; the lower clamping device comprises a semi-annular lower semi-ring. The invention mainly solves the problem that after the pipes are connected, the connecting part is overstocked to form a protrusion which needs to be scraped by an operator by using a tool.)

1. PE union coupling auxiliary device based on heating is connected, including connecting box (1), its characterized in that: a connecting cover (2) is arranged on the upper side of the connecting box (1), lower clamping devices (5) are symmetrically arranged in the connecting box (1) in the left-right direction, upper clamping devices (4) are symmetrically arranged on one side of the connecting cover (2) in the left-right direction, and a heating connecting device (3) is arranged in the connecting box (1) close to the middle part;

the connecting box (1) comprises a square connecting seat (11), a connecting and inserting groove (12) penetrating through the connecting seat (11) is formed in the position, close to the middle part, inside the connecting seat (11), a connecting straight groove (13) is formed in the upper side of the connecting and inserting groove (12), one end of the connecting straight groove (13) penetrates through the upper surface of the connecting seat (11), and lower arc plate sliding grooves (14) are formed in the side wall of the connecting and inserting groove (12) in an annular arrangement mode;

the connecting cover (2) comprises a square cover plate (21), a clamping lifting handle (22) is arranged at a position, close to the middle, of one side of the cover plate (21), a hinged frame (23) is fixedly connected to one side of the cover plate (21), and one end of the hinged frame (23) is fixedly connected to a position, close to the edge, of the upper surface of the connecting base (11);

the heating connecting device (3) comprises a connecting cutting device (31) and an electric heating device (32), the connecting cutting device (31) comprises a middle bearing column (311) which is cylindrical, one end of the middle bearing column (311) is fixedly connected with an outer ring removing blade (312), the inner part of the outer ring removing blade (312) is provided with an outer ring cutting blade (313), one end of the outer ring cutting blade (313) is fixedly connected to the side wall of the middle bearing column (311), a spiral outer ring heating coil (314) is arranged in a gap between the outer ring removing blade (312) and the outer ring cutting blade (313), the other end of the middle bearing column (311) is fixedly connected with an inner ring cutting blade (316) which is matched with the size of the outer ring cutting blade (313) and is annular, and the inner ring removing blade (317) is arranged in the inner part of the inner ring cutting blade (316), one side, close to the middle bearing column (311), of the inner ring removing blade (317) is fixedly connected with an inner ring heating coil (318), and one end of the inner ring heating coil (318) is fixedly connected to the side wall of the middle bearing column (311);

the upper clamping device (4) comprises a fixed hinged sliding plate (41), an upper clamping mechanism (42) is arranged at the bottom of the fixed hinged sliding plate (41), the fixed hinged sliding plate (41) comprises a square sliding plate body (411), the positions, close to the middle part, of the upper surface of the sliding plate body (411) are bilaterally and symmetrically fixedly connected with square fixed blocks (412), a second hinged block (413) is fixedly connected between the two fixed blocks (412), a convex sliding groove (414) is arranged inside the sliding plate body (411), a pushing spring (415) is arranged inside the sliding groove (414), the upper clamping mechanism (42) comprises a semicircular upper semi-ring (421), the outer side wall of the upper half ring (421) is fixedly connected with a square upper sliding block (424) near the middle part, the left side and the right side of the upper sliding block (424) are provided with square strip-shaped side sliding grooves (425);

the lower clamping device (5) comprises a semicircular lower half ring (51), a lower sliding block (54) which is square and matched with the lower arc plate sliding groove (14) is fixedly connected to the outer side wall of the lower half ring (51) in an annular arrangement mode, and a return spring (55) is fixedly connected to one side of the lower sliding block (54).

2. The PE pipe connection assist device based on a heated connection of claim 1, wherein: the outer ring cutting blade (313) is fixedly connected with an annular outer ring inclined stop block (315) on the outer side wall far away from the middle bearing column (311), and the outer ring inclined stop block (315) blocks a gap between the outer ring cutting blade (313) and the outer ring removing blade (312).

3. The PE pipe connection assist device based on a heated connection of claim 1, wherein: an inner ring inclined stop block (319) in a ring shape is fixedly connected to the inner wall, away from the outer ring cutting blade (313), of the inner ring cutting blade (316), and the inner ring size of the inner ring inclined stop block (319) is the same as that of the inner ring removing blade (317).

4. The PE pipe connection assist device based on a heated connection of claim 1, wherein: fixed articulated slide (41) fixed connection is on the lateral wall of apron (21), top shoe (424) set up the inside at sliding tray (414), the inside of the lateral wall board joint of slide body (411) in side spout (425).

5. The PE pipe connection assist device based on heating connection of claim 4, wherein: go up slider (424) and be close to one side fixedly connected with spacer pin (426) that promote spring (415), fixedly connected with fixed pin (416) on the lateral wall of slider (424) is kept away from to the inside of sliding tray (414), the both ends cover of promoting spring (415) is established on spacer pin (426) and fixed pin (416).

6. The PE pipe connection assist device based on a heated connection of claim 1, wherein: clamping device (5) set up in the inside of connecting inserting groove (12) down, the one end setting of slider (54) is in the inside of arc board spout (14) down, return spring (55) set up the inside of arc board spout (14) down, the one end fixedly connected with that clamping device (5) kept away from down arc board spout (14) down is circular shape spring baffle (17), the other end fixed connection of return spring (55) is on the lateral wall of spring baffle (17).

7. The PE pipe connection assist device based on a heated connection of claim 1, wherein: the both ends fixedly connected with of going up semi-ring (421) is square last joint plate (422), the bottom four corners department bilateral symmetry fixedly connected with of going up joint plate (422) is columniform and inserts post (423), both ends fixedly connected with and last joint plate (422) looks adaptation are square lower joint plate (52) about lower semi-ring (51), slot (53) have been seted up to the four corners department bilateral symmetry of lower joint plate (52), the one end of inserting post (423) is pegged graft in the inside of slot (53).

8. The PE pipe connection assist device based on a heated connection of claim 7, wherein: the connecting device is characterized in that two ends of the connecting straight groove (13) are bilaterally symmetrically provided with square straight sliding grooves (15), the connecting straight groove (13) at one end of each straight sliding groove (15) is provided with a transverse sliding groove (16), the upper clamping plate (422) and the lower clamping plate (52) are arranged inside the straight sliding grooves (15) and the transverse sliding grooves (16), and the inner walls of the upper half ring (421) and the lower half ring (51) are fixedly connected with semicircular grooves (427).

9. The PE pipe connection assist device based on a heated connection of claim 1, wherein: the clamping carrying handle (22) comprises two hinged blocks (221) and two carrying handles (222) which are U-shaped and hinged between the hinged blocks (221), a clamping cylinder (223) which is a semi-cylinder is fixedly connected to the inner wall of one end of each carrying handle (222), one end of the middle side wall, far away from the connecting cover (2), of the connecting seat (11) is fixedly connected to one end of the clamping plate (18), and one end of the clamping plate (18) is clamped with the clamping cylinder (223).

10. The PE pipe connection assist device based on a heated connection of claim 1, wherein: middle part holds splicing column (311) fixed connection in the inside of connecting inserting groove (12), heating device has been seted up to the inside of middle part holds splicing column (311) and has been placed chamber (3111), heating device has been placed and has been seted up on the lateral wall in chamber (3111) two spool and lead to groove (3112), the one end of outer loop heating coil (314) and inner ring heating coil (318) is passed through spool and is led to groove (3112) and enter into heating device and place chamber (3111), electric heater unit (32) are pegged graft and are being placed in chamber (3111) at heating device.

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a PE pipe connection auxiliary device based on heating connection.

Background

PE pipe is a highly crystalline, non-polar thermoplastic resin. PE has excellent characteristics of resisting most of domestic and industrial chemicals and is applied to building water supply, building drainage, buried drainage pipes, building heating and gas transmission pipes, electrical and telecommunication protective sleeves, industrial pipes, agricultural pipes and the like. It is mainly applied to urban water supply, urban gas supply and farmland irrigation. At present, the pipeline connection mostly adopts a hot melting and electric melting connection mode, the integration of the interface and the pipe is realized, and the one-way stress and the axial impact stress generated by the internal pressure can be effectively resisted.

When the pipe is hot-melted, the position of the PE pipe to be connected is usually heated and melted by using a tool, the two pipes are connected together, after the pipes are connected, the connection part is overstocked to form a protrusion, an operator needs to use the tool to scrape the protrusion, and in the work of connecting the pipes, the operation is troublesome, and the speed of connecting the pipes by the operator is reduced.

Disclosure of Invention

The present invention is directed to a PE pipe connection auxiliary device based on heating connection to solve the above problems in the background art.

In order to achieve the purpose, the PE pipe connection auxiliary device based on heating connection comprises a connection box, wherein a connection cover is arranged on the upper side of the connection box, lower clamping devices are symmetrically arranged in the connection box in the left-right direction, an upper clamping device is symmetrically arranged on one side of the connection cover in the left-right direction, and a heating connection device is arranged in the connection box and close to the middle of the connection box;

the connecting box comprises a square connecting seat, a connecting and inserting groove which penetrates through the connecting seat is formed in the position, close to the middle part, of the inside of the connecting seat, a connecting straight groove is formed in the upper side of the connecting and inserting groove, one end of the connecting straight groove penetrates through the upper surface of the connecting seat, and lower arc plate sliding grooves are formed in the side wall of the connecting and inserting groove in an annular arrangement mode;

the connecting cover comprises a square cover plate, a clamping lifting handle is arranged at a position, close to the middle, of one side of the cover plate, a hinge frame is fixedly connected to one side of the cover plate, and one end of the hinge frame is fixedly connected to a position, close to the edge, of the upper surface of the connecting seat;

the heating connecting device comprises a connecting cutting device and an electric heating device, the connecting cutting device comprises a cylindrical middle bearing column, one end of the middle bearing column is fixedly connected with an annular outer ring removing blade, an outer ring cutting blade is arranged inside the outer ring removing blade, one end of the outer ring cutting blade is fixedly connected to the side wall of the middle bearing column, a spiral outer ring heating coil is arranged in a gap between the outer ring removing blade and the outer ring cutting blade, the other end of the middle bearing column is fixedly connected with an annular inner ring cutting blade which is matched with the outer ring cutting blade in size, an inner ring removing blade is arranged inside the inner ring cutting blade, an inner ring heating coil is fixedly connected to one side, close to the middle bearing column, of the inner ring removing blade, and one end of the inner ring heating coil is fixedly connected to the side wall of the middle bearing column;

the upper clamping device comprises a fixed hinged sliding plate, an upper clamping mechanism is arranged at the bottom of the fixed hinged sliding plate, the fixed hinged sliding plate comprises a square sliding plate body, the position, close to the middle part, of the upper surface of the sliding plate body is bilaterally and symmetrically fixedly connected with square fixed blocks, a second hinged block is fixedly connected between the two fixed blocks, a convex sliding groove is formed in the sliding plate body, a pushing spring is arranged in the sliding groove, the upper clamping mechanism comprises a semicircular upper half ring, a square upper sliding block is fixedly connected to the position, close to the middle part, of the outer side wall of the upper half ring, and square-strip-shaped side sliding grooves are formed in the left side and the right side of the upper sliding block;

the lower clamping device comprises a semicircular lower semi-ring, a lower sliding block which is square and matched with the lower arc plate sliding groove is fixedly connected to the outer side wall of the lower semi-ring in an annular arrangement mode, and a return spring is fixedly connected to one side of the lower sliding block.

As a further improvement of the technical scheme, an outer ring inclined stop block which is annular is fixedly connected to the outer side wall of the outer ring cutting blade far away from the middle bearing column, and the outer ring inclined stop block is used for plugging a gap between the outer ring cutting blade and the outer ring removing blade.

As a further improvement of the technical scheme, an inner wall, away from the outer ring cutting blade, of the inner ring cutting blade is fixedly connected with an annular inner ring inclined stop block, and the size of the inner ring inclined stop block is the same as that of the inner ring removing blade.

As a further improvement of the technical scheme, the fixed hinged sliding plate is fixedly connected to the side wall of the cover plate, the upper sliding block is arranged inside the sliding groove, and the side wall plate of the sliding plate body is clamped inside the side sliding groove.

As a further improvement of the technical scheme, the upper sliding block is close to a limit pin fixedly connected with one side of the pushing spring, the fixing pin fixedly connected with the side wall of the upper sliding block is far away from the inside of the sliding groove, and the two ends of the pushing spring are sleeved on the limit pin and the fixing pin.

As a further improvement of the technical scheme, the lower clamping device is arranged inside the connecting and inserting groove, one end of the lower sliding block is arranged inside the lower arc plate sliding groove, the return spring is arranged inside the lower arc plate sliding groove, one end, far away from the lower clamping device, of the lower arc plate sliding groove is fixedly connected with a spring baffle which is circular, and the other end of the return spring is fixedly connected to the side wall of the spring baffle.

As a further improvement of the technical scheme, two ends of the upper half ring are fixedly connected with an upper square clamping plate, four corners of the bottom of the upper clamping plate are bilaterally and symmetrically fixedly connected with a cylindrical inserting column, two ends of the lower half ring are fixedly connected with a lower square clamping plate matched with the upper clamping plate, the four corners of the lower clamping plate are bilaterally and symmetrically provided with inserting slots, and one end of each inserting column is inserted into the corresponding inserting slot.

As a further improvement of the technical scheme, two ends of the connecting straight groove are bilaterally symmetrically provided with a square straight sliding groove, the connecting straight groove at one end of the straight sliding groove is provided with a horizontal sliding groove, the upper clamping plate and the lower clamping plate are arranged inside the straight sliding groove and the horizontal sliding groove, and the inner walls of the upper half ring and the lower half ring are fixedly connected with a semicircular ring.

As the further improvement of this technical scheme, the card fixed carrying handle includes two articulated blocks one, two articulated between the articulated block one have the carrying handle that is the U-shaped, fixedly connected with is the joint cylinder of semicircle pillar on the one end inner wall of carrying handle, fixedly connected with one end is columniform joint board on keeping away from the middle part lateral wall of connecting cover of connecting seat, the one end and the joint cylinder joint of joint board.

As a further improvement of the technical scheme, the middle bearing column is fixedly connected inside the connecting and splicing groove, the heating device placing cavity is arranged inside the middle bearing column, two spool through grooves are arranged on the side wall of the heating device placing cavity, one ends of the outer ring heating coil and the inner ring heating coil enter the heating device placing cavity through the spool through grooves, and the electric heating device is spliced in the heating device placing cavity.

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

1. in this PE union coupling auxiliary device based on heating connection, the position heating that the PE tubular product that needs to connect of heating connecting device that sets up needs to be connected, outer loop cutting blade and inner ring cutting blade are amputated the inner wall and the outer wall of the PE tubular product of heating simultaneously, it is more convenient when connecting to make two pipelines of connecting, make when PE tubular product is connected, the position that tubular product is connected can not produce the jut, the jut of having avoided operating personnel to PE tubular product hookup location strikes off, accelerate the speed that operating personnel connects PE tubular product.

2. In the PE pipe connection auxiliary device based on heating connection, the upper clamping device and the lower clamping device are arranged to fix a PE pipe to be connected, so that when the PE pipe is heated, the PE pipe is clamped by the upper clamping device and the lower clamping device, one end of the PE pipe can be stably close to the heating connection device, and the heating connection device is enabled to cut the inner wall and the outer wall of the PE pipe.

3. In this PE union coupling auxiliary device based on heating connection, the last joint board that sets up and lower joint board are placed in straight spout and sideslip groove, and when last clamping device was fixed to PE tubular product centre gripping with lower clamping device, through the spacing of sideslip groove to last joint board and lower joint board, make and go up clamping device and lower clamping device and can be in the stable removal in inside of connecting the inserting groove, the heating connecting device of being convenient for heats the cutting to PE tubular product.

4. In this PE union coupling auxiliary device based on heating connection, the card that sets up is carried the joint on the joint board, and when last clamping device entered into and connects the inserting groove and fix PE tubular product, with the one end joint of joint cylinder and joint board, make to connect the lid and fix the upside at the connecting box, clamping device carries out the centre gripping fixedly to PE tubular product under the last clamping device cooperation of being convenient for.

Drawings

FIG. 1 is one of the overall assembly structure diagrams of embodiment 1;

FIG. 2 is one of the overall assembly structure diagrams of embodiment 1;

FIG. 3 is a schematic view showing a combination structure of the connection box and the connection cover according to embodiment 1;

FIG. 4 is a schematic sectional view showing the structure of the connection box of embodiment 1;

FIG. 5 is a schematic view of the structure of a heating connecting device according to embodiment 1;

FIG. 6 is a schematic sectional view showing the connecting and cutting apparatus according to embodiment 1;

FIG. 7 is a schematic view of the upper clamping device according to embodiment 1;

FIG. 8 is a sectional view schematically showing the structure of the fixed hinge sliding plate according to embodiment 1;

FIG. 9 is a schematic view of the upper clamp mechanism according to embodiment 1;

fig. 10 is a schematic structural view of a lower clamping device in embodiment 1.

The various reference numbers in the figures mean:

1. a connection box; 11. a connecting seat; 12. connecting the inserting groove; 13. connecting the straight grooves; 14. a lower arc plate chute; 15. a straight chute; 16. a horizontal chute; 17. a spring baffle; 18. a clamping and connecting plate;

2. a connecting cover; 21. a cover plate; 22. clamping the carrying handle; 221. a first hinge block; 222. a carrying handle; 223. clamping the cylinders; 23. a hinged frame;

3. heating the connecting device;

31. connecting a cutting device; 311. a middle support column; 3111. a heating device placement cavity; 3112. a conduit through groove; 312. an outer ring removal blade; 313. an outer ring cutting blade; 314. an outer ring heating coil; 315. an outer ring inclined stop block; 316. an inner ring cutting blade; 317. removing the blade from the inner ring; 318. an inner ring heating coil; 319. an inner ring inclined stop block;

32. an electric heating device;

4. an upper clamping device;

41. fixedly hinging the sliding plate; 411. a slider body; 412. a fixed block; 413. a second hinge block; 414. a sliding groove; 415. a push spring; 416. a fixing pin;

42. an upper clamping mechanism; 421. an upper half ring; 422. an upper clamping and connecting plate; 423. inserting a column; 424. an upper slide block; 425. a side chute; 426. a spacing pin;

5. a lower clamping device; 51. a lower half ring; 52. a lower clamping and connecting plate; 53. a slot; 54. a lower slide block; 55. and a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1 to 10, a PE pipe connection auxiliary device based on heating connection is provided, which includes a connection box 1, a connection cover 2 is disposed on an upper side of the connection box 1, lower clamping devices 5 are symmetrically disposed in the connection box 1 in a left-right manner, upper clamping devices 4 are symmetrically disposed on one side of the connection cover 2 in a left-right manner, and a heating connection device 3 is disposed in the connection box 1 near a middle portion;

the connecting box 1 comprises a square connecting seat 11, a connecting inserting groove 12 which penetrates through the connecting seat 11 is formed in the position, close to the middle part, inside the connecting seat 11, a connecting straight groove 13 is formed in the upper side of the connecting inserting groove 12, one end of the connecting straight groove 13 penetrates through the upper surface of the connecting seat 11, and lower arc plate sliding grooves 14 are formed in the side wall of the connecting inserting groove 12 in an annular arrangement mode;

when the connecting box 1 in this embodiment is used, the PE pipe to be connected is placed on the heating connecting device 3 in the connecting and inserting groove 12, the PE pipe is clamped by the clamping device 4 in cooperation, when the heating connecting device 3 heats the PE pipe, the PE pipe pushed to be heated is close to the heating connecting device 3, so that the heating connecting device 3 cuts the PE pipe, meanwhile, the transverse sliding groove 16 limits the positions of the upper clamping device 4 and the lower clamping device 5, so that when the PE pipe is pushed, the upper clamping device 4 and the lower clamping device 5 can follow the stable movement of the PE pipe.

The connecting cover 2 comprises a square cover plate 21, a clamping lifting handle 22 is arranged at a position, close to the middle, of one side of the cover plate 21, a hinge frame 23 is fixedly connected to one side of the cover plate 21, and one end of the hinge frame 23 is fixedly connected to a position, close to the edge, of the upper surface of the connecting seat 11;

connection lid 2 in this embodiment is when using, put into the connection inserting groove 12 back at PE tubular product, will connect lid 2 lid on connecting box 1 through rotatory apron 21, make and go up clamping device 4 and enter into in connecting inserting groove 12, it is fixed to carry out the centre gripping to the PE tubular product of placing in connecting inserting groove 12, be convenient for when heating connecting device 3 heating PE tubular product, PE tubular product can not take place to rock, the PE tubular product of being convenient for simultaneously removes in connecting inserting groove 12, card fixed carrying handle 22 and joint board 18 joint, make connection lid 2 fix on connecting box 1, guarantee when PE tubular product heating, go up clamping device 4's position and can not take place to rock.

The heating connection device 3 comprises a connection cutting device 31 and an electric heating device 32, the connection cutting device 31 comprises a cylindrical middle bearing column 311, one end of the middle bearing column 311 is fixedly connected with an annular outer ring removing blade 312, an outer ring cutting blade 313 is arranged inside the outer ring removing blade 312, one end of the outer ring cutting blade 313 is fixedly connected to the side wall of the middle bearing column 311, a spiral outer ring heating coil 314 is arranged in a gap between the outer ring removing blade 312 and the outer ring cutting blade 313, the other end of the middle bearing column 311 is fixedly connected with an annular inner ring cutting blade 316 matched with the outer ring cutting blade 313 in size, an inner ring removing blade 317 is arranged inside the inner ring cutting blade 316, one side of the inner ring removing blade 317 close to the middle bearing column 311 is fixedly connected with an inner ring heating coil 318, and one end of the inner ring heating coil 318 is fixedly connected to the side wall of the middle bearing column 311;

when the heating connecting device 3 in the embodiment is used, the outer ring heating coil 314 and the inner ring heating coil 318 are heated through the heating coil 32, the outer ring heating coil 314 and the inner ring heating coil 318 heat the outer ring cutting blade 313, the outer ring removing blade 312, the inner ring cutting blade 316 and the inner ring removing blade 317, the heated outer ring cutting blade 313 and the inner ring cutting blade 316 respectively heat and cut the inner wall and the outer wall of the PE pipe, and the outer ring inclined stopper 315 and the inner ring inclined stopper 319 of the PE pipe cut off by the outer ring cutting blade 313 and the inner ring cutting blade 316 lift up the outer ring inclined stopper 315 and the inner ring inclined stopper 319 of the PE pipe, so that the outer ring removing blade 312 and the inner ring removing blade 317 cut off the PE pipe skin, and when the heated PE pipe is connected, no protrusion is generated at the position where the PE pipe is connected.

The upper clamping device 4 comprises a fixed hinged sliding plate 41, an upper clamping mechanism 42 is arranged at the bottom of the fixed hinged sliding plate 41, the fixed hinged sliding plate 41 comprises a square sliding plate body 411, the square fixed blocks 412 are fixedly connected to the positions, close to the middle, of the upper surface of the sliding plate body 411 in a bilateral symmetry mode, a second hinged block 413 is fixedly connected between the two fixed blocks 412, a convex sliding groove 414 is formed in the sliding plate body 411, a pushing spring 415 is arranged in the sliding groove 414, the upper clamping mechanism 42 comprises a semicircular upper half ring 421, a square upper sliding block 424 is fixedly connected to the position, close to the middle, of the outer side wall of the upper half ring 421, and square strip-shaped side sliding grooves 425 are formed in the left side and the right side of the upper sliding block 424;

the lower clamping device 5 comprises a semi-annular lower half ring 51, a lower sliding block 54 which is square and matched with the lower arc plate sliding groove 14 is fixedly connected on the outer side wall of the lower half ring 51 in an annular arrangement mode, and a return spring 55 is fixedly connected on one side of the lower sliding block 54.

When the upper clamping device 4 and the lower clamping device 5 in this embodiment are used, after a PE pipe is placed inside the lower half ring 51 in the connection insertion groove 12, the upper clamping device 4 is placed in the connection insertion groove 12, the upper clamping plate 422 slides in the track of the straight sliding groove 15, when the upper clamping device 4 contacts the lower clamping device 5, the insertion column 423 is inserted into the insertion groove 53 to connect the upper clamping device 4 and the lower clamping device 5 together, and when the heating connection device 3 heats the PE pipe, the PE pipe is slowly pushed, so that the heating connection device 3 continuously heats and cuts the PE pipe, the PE pipe drives the upper clamping plate 422 and the lower clamping plate 52 to slide in the transverse sliding groove 16, and the return spring 55 and the pushing spring 415 are squeezed and contracted by the moved upper sliding block 424 and the lower clamping device 5.

Further, an annular outer ring inclined stop 315 is fixedly connected to the outer side wall of the outer ring cutting blade 313 far away from the middle bearing column 311, the outer ring inclined stop 315 blocks a gap between the outer ring cutting blade 313 and the outer ring removing blade 312, the outer ring inclined stop 315 blocks the gap between the outer ring cutting blade 313 and the outer ring removing blade 312, so that when the outer ring cutting blade 313 cuts a PE pipe, a cut skin is cut off by the outer ring removing blade 312 through the blocking of the outer ring inclined stop 315, the PE pipe skin is prevented from entering the gap between the outer ring cutting blade 313 and the outer ring removing blade 312 and contacting the outer ring heating coil 314 to affect the heat generation of the outer ring heating coil 314, an annular inner ring inclined stop 319 is fixedly connected to the inner wall of the inner ring cutting blade 316 far away from the outer ring cutting blade 313, and the inner ring size of the inner ring inclined stop 319 is the same as the size of the inner ring removing blade 317, when the inner ring cutting blade 316 cuts the PE pipe, the PE pipe skin cut off by the inner ring cutting blade 316 is blocked by the inner ring inclined stopper 319, so that the inner ring removing blade 317 cuts the PE pipe skin, and meanwhile, the inner ring removing blade 317 blocks the PE pipe skin, thereby preventing the PE pipe skin from contacting the inner ring heating coil 318 and influencing the heat production of the inner ring heating coil 318.

Specifically, fixed articulated slide 41 fixed connection is on the lateral wall of apron 21, last slider 424 sets up the inside at sliding tray 414, the inside at side spout 425 of the lateral wall board joint of the slide body 411, last slider 424 is close to one side fixedly connected with spacer pin 426 that promotes spring 415, fixedly connected with fixed pin 416 on the lateral wall of slider 424 is kept away from to the inside of sliding tray 414, promote the both ends cover of spring 415 and establish on spacer pin 426 and fixed pin 416, with slider 424 joint in sliding tray 414, when last clamping device 4 is fixed to PE tubular product, it can be stable slip in sliding tray 414 to go up clamping device 4, fixed pin 416 can push back last clamping device 4 to the normal position simultaneously, the sustained use of convenient device.

Besides, lower clamping device 5 sets up in the inside of connecting inserting groove 12, the one end setting of lower slider 54 is in the inside of arc board spout 14 down, return spring 55 sets up the inside of arc board spout 14 down, the one end fixedly connected with that clamping device 5 was kept away from down to arc board spout 14 is circular shape spring baffle 17 down, return spring 55's other end fixed connection is on spring baffle 17's lateral wall, will lower slider 54 sets up under in arc board spout 14, the position of clamping device 5 in connecting inserting groove 12 under the fixed, clamping device 5 removes in connecting inserting groove 12 under the convenience simultaneously.

Further, both ends of the upper half ring 421 are fixedly connected with a square upper clamping plate 422, the bottom four corners of the upper clamping plate 422 are fixedly connected with cylindrical insertion posts 423 in a bilateral symmetry manner, both left and right ends of the lower half ring 51 are fixedly connected with a square lower clamping plate 52 matched with the upper clamping plate 422, the four corners of the lower clamping plate 52 are provided with insertion slots 53 in a bilateral symmetry manner, one ends of the insertion posts 423 are inserted into the insertion slots 53, both ends of the connecting straight slot 13 are provided with square straight sliding slots 15 in a bilateral symmetry manner, the connecting straight slot 13 at one end of the straight sliding slot 15 is provided with a horizontal sliding slot 16, the upper clamping plate 422 and the lower clamping plate 52 are arranged inside the straight sliding slot 15 and the horizontal sliding slot 16, the inner walls of the upper half ring 427 and the lower half ring 51 are fixedly connected with a semicircular shape, the upper clamping device 4 and the lower clamping device 5 are connected together by inserting the insertion posts 423 into the insertion slots 53, the upper clamping plate 422 and the lower clamping plate 52 are placed in the horizontal sliding slot 16, when the PE pipe drives the upper clamping device 4 and the lower clamping device 5 to move, the upper clamping device 4 and the lower clamping device 5 can continuously clamp the PE pipe.

Specifically, the card fixing carrying handle 22 includes two articulated blocks 221, it has the carrying handle 222 that is the U-shaped to articulate between two articulated blocks 221, fixedly connected with is the joint cylinder 223 of semicircle column on the one end inner wall of carrying handle 222, fixedly connected with one end is columniform joint board 18 on keeping away from the middle part lateral wall of connecting lid 2 of connecting seat 11, joint board 18's one end and joint cylinder 223 joint, with joint cylinder 223 and joint board 18 joint, make connecting lid 2 fix on connecting box 1, be convenient for connect and cover 2 control go up clamping device 4's position, clamping device 4 carries out the centre gripping to PE tubular product in the messenger.

Besides, middle part holds the post 311 fixed connection in the inside of connecting inserting groove 12, the inside of middle part holds the post 311 has been seted up heating device and has been placed chamber 3111, heating device places and has been seted up two spool through grooves 3112 on the lateral wall of chamber 3111, the one end of outer loop heating coil 314 and inner ring heating coil 318 enters into heating device through spool through groove 3112 and places chamber 3111, electric heater unit 32 pegs graft and places the chamber 3111 in heating device, be convenient for electric heater unit 32 and outer loop heating coil 314 and inner ring heating coil 318 to connect.

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 embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.