CN114131933A

CN114131933A - PE pipe hot melt welding's welding equipment is exclusively used in based on adjusting part

Info

Publication number: CN114131933A
Application number: CN202111358199.1A
Authority: CN
Inventors: 沈阳; 刘灿; 林康淳; 章海
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-03-04
Anticipated expiration: 2041-11-17
Also published as: CN114131933B

Abstract

The invention discloses welding equipment special for PE (polyethylene) pipe hot melt welding based on an adjusting assembly, and relates to the technical field of PE pipe hot melt welding. The invention comprises a movable base; the center of the upper surface of the movable base is rotatably connected with a hot melting mechanism; the upper surface of the movable base is symmetrically and slidably connected with two supporting mechanisms; the supporting mechanism consists of a supporting component and a clamping component; the supporting component is fixedly connected with the clamping component; the PE pipe is clamped inside the clamping assembly. According to the invention, through the design of the push plate, the first limit sliding groove, the rack, the annular channel, the hot melting mechanism, the toothed ring and the supporting mechanism, the rack is horizontally slid along the first limit sliding groove by the push plate, and the hot melting mechanism is driven to rotate under the thread fit between the rack and the toothed ring, so that the hot melting welding of the PE pipes in different directions is met, the PE pipes do not need to be manually moved to required positions for welding, the labor intensity of workers is greatly reduced, and the efficiency of the hot melting welding is improved.

Description

PE pipe hot melt welding's welding equipment is exclusively used in based on adjusting part

Technical Field

The invention belongs to the technical field of PE (polyethylene) pipe hot-melt welding, and particularly relates to welding equipment special for PE pipe hot-melt welding based on an adjusting assembly.

Background

The PE pipe is one of the more common pipes in a city market in China, the plastic pipeline is steadily developing, the PE pipe, the PP-R pipe and the UPVC pipe all occupy a place, wherein the strong development potential of the PE pipe is most remarkable, the use field of the PE pipe is wide, the water supply pipe and the gas pipe are two biggest application cities, and the PE pipe has excellent characteristics of resisting most of life and industrial chemicals. During installation and use of the PE pipe, butt welding is often required to be carried out on the PE pipe.

However, the existing welding device is generally a handheld welding machine, one ends of two PE pipes are heated manually in the welding process, and then the two PE pipes are butted, the welding mode mainly depends on manual control, and uneven heating is easily caused by poor fixation in the heating process, so that the welding effect is poor, and the installation quality is affected; in addition, in the process of carrying out hot-melt welding on two PE pipes by using the conventional PE pipe welding equipment, the PE pipes are frequently moved manually according to the positions of the PE pipes, and are moved to the positions meeting the hot-melt welding requirement, so that the mode is extremely troublesome in operation and poor in flexibility, and the welding efficiency is low due to high labor intensity of workers; in addition, the existing PE pipe welding equipment has single function, only one pair of PE pipes can be welded at each time, and the next pair of PE pipes can be subjected to hot melting welding after the PE pipes are completely welded, so that the working efficiency of the hot melting welding of the PE pipes is greatly reduced.

Disclosure of Invention

The invention aims to provide welding equipment special for PE (polyethylene) pipe hot-melt welding based on an adjusting assembly, and the welding equipment solves the problems that the existing PE pipe welding equipment is very troublesome in operation and poor in flexibility, the labor intensity of workers is high, the welding efficiency is low, the existing PE pipe welding equipment has a single function, only one pair of PE pipes can be welded at each time, and the next pair of PE pipes can be subjected to hot-melt welding after the pair of PE pipes are completely welded, so that the working efficiency of the PE pipe hot-melt welding is greatly reduced.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to welding equipment special for PE (polyethylene) pipe hot melt welding based on an adjusting assembly, which comprises a movable base, wherein the movable base is provided with a groove; the center of the upper surface of the movable base is rotatably connected with a hot melting mechanism; the upper surface of the movable base is symmetrically and slidably connected with two supporting mechanisms; the supporting mechanism consists of a supporting component and a clamping component; the supporting component is fixedly connected with the clamping component; the PE pipe is clamped in the clamping assembly.

Furthermore, the hot melting mechanism comprises two fixed disks which are arranged up and down; the two fixed disks are fixedly connected through a supporting rod;

the upper surface of the fixed disc positioned below is provided with a mounting groove; the bottom in the mounting groove is fixedly connected with a plurality of positioning springs; the upper end of the positioning spring is fixedly connected with a positioning disc;

a plurality of telescopic parts are fixedly connected between the bottom in the mounting groove and the positioning disc, and the telescopic parts are sleeved in the positioning spring;

the upper surface of the positioning disc is provided with a positioning groove.

Furthermore, a fixed rod is fixedly connected to the lower surface of the fixed disk positioned above the fixed disk;

the outer part of the fixed rod is rotatably connected with a rotating disc, and the outer wall of the rotating disc is fixedly connected with a mounting ring; the inner wall of the mounting ring is fixedly provided with a hot melt plate;

the outer wall of the mounting ring is fixedly connected with a positioning ball; the positioning ball is matched with the positioning groove;

and the two opposite side surfaces of the mounting ring are fixedly connected with operating rods.

Furthermore, the side surface of the support rod close to the hot melt plate is fixedly connected with a return spring; one end of the return spring is fixedly connected with a positioning plate; the positioning plate is matched with the positioning ball for use;

a pull rod is fixedly connected to the side surface, close to the return spring, of the positioning plate; one end of the pull rod penetrates through one side face of the support rod.

Furthermore, a control panel is fixedly arranged on the upper surface of the fixed disc above the fixed disc;

the lower surface of the fixed disc positioned below is fixedly connected with an upright post; the peripheral side surface of the upright post is fixedly connected with a toothed ring;

the center of the upper surface of the movable base is fixedly provided with a bearing, and the bearing is fixedly connected with the upright post.

Furthermore, the upper surface of the movable base is symmetrically and fixedly connected with two mounting plates;

one side surface of one of the mounting plates is fixedly provided with a driving motor; one end of the output shaft of the driving motor is fixedly connected with a threaded rod; one end of the threaded rod is rotatably connected with one side face of the other mounting plate.

Furthermore, two push plates are connected to the peripheral side surface of the threaded rod in a threaded manner; the bottom of the push plate is provided with a plurality of rollers; the roller is matched with the movable base in a rolling way;

the upper surface of the movable base is provided with a first limiting chute; a rack is fixedly connected inside the first limiting sliding groove through a first sliding block; the rack is meshed with the toothed ring;

the rack is positioned between the two push plates and is magnetically attracted with the push plates.

Furthermore, the upper surface of the movable base is provided with an annular channel;

a plurality of fixing grooves are formed in the circumferential side surface of the movable base along the circumferential direction;

the supporting component comprises an arc-shaped bottom plate; the arc-shaped bottom plate is in sliding fit with the annular channel;

the outer wall of the arc-shaped bottom plate is fixedly connected with a vertical plate; and the side surface of the vertical plate is provided with a fixing hole matched with the fixing groove.

Furthermore, the upper surface of the arc-shaped bottom plate is fixedly connected with a first support and a second support respectively;

a second limiting sliding groove is formed in one side face of the first support and one side face of the second support; a cross rod is fixedly connected to the inner part of the second limiting sliding groove through a second sliding block; the cross rod is fixedly connected with the clamping assembly.

Furthermore, the side surface of the first bracket close to the second limiting sliding groove and the side surface of the second bracket close to the second limiting sliding groove are both provided with controllers; an electric push rod is fixed at the output end of the controller; the electric push rod is fixedly connected with the cross rod;

the clamping assembly consists of two hoops and a connecting seat which are arranged up and down; the connecting seat is hinged with the clamp;

the connecting seat is fixedly connected with the cross rod.

The invention has the following beneficial effects:

1. according to the invention, through the design of the bearing, the threaded rod, the push plate, the first limiting sliding groove, the rack, the annular groove channel, the hot melting mechanism, the stand column, the toothed ring and the supporting mechanism, the rack is horizontally slid along the first limiting sliding groove by the push plate, the hot melting mechanism is driven to rotate under the thread fit between the rack and the toothed ring, and the position of the hot melting mechanism is flexibly rotated and adjusted, so that the hot melting welding of the PE pipes in different directions is met, the PE pipes are not required to be manually moved to required positions for welding, the operation is simple, the flexibility is high, the labor intensity of workers is greatly reduced, the efficiency of the hot melting welding is improved, and the application range of the invention is greatly increased.

2. According to the invention, through the design of the positioning spring, the positioning disc, the positioning groove, the fixing rod, the rotating disc, the mounting ring, the hot melting plate, the positioning ball, the reset spring, the positioning plate and the pull rod, the hot melting welding of one pair of PE pipes can be realized by utilizing the limit cooperation effect between the mounting ring and the positioning plate, the hot melting welding of another pair of PE pipes can be realized by utilizing the limit cooperation effect between the positioning ball on the mounting ring and the positioning groove, and further, the hot melting welding of a plurality of groups of PE pipes can be realized at the same time, so that the working efficiency of the hot melting welding of the PE pipes is greatly improved.

3. According to the invention, through the design of the first support, the second limiting sliding groove, the cross rod, the controller, the electric push rod and the clamping assembly, in the process of carrying out hot-melt welding on the PE pipe, the cross rod is driven to horizontally move along the second limiting sliding groove through the electric push rod, so that the horizontal movement of the clamping assembly is realized, the horizontal movement of the PE pipe which is clamped and fixed is realized, the hot-melt welding requirement of the PE pipe is met, the movement of the position of the PE pipe which is manually dominant is reduced, and the labor intensity of workers is greatly reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a welding device based on an adjusting assembly and specially used for hot-melt welding of PE pipes;

FIG. 2 is a rear view of the structure of FIG. 1;

FIG. 3 is a front view of the structure of FIG. 1;

FIG. 4 is a schematic structural diagram of the mobile base;

FIG. 5 is a top view of the structure of FIG. 4;

FIG. 6 is a schematic structural diagram of a heat-melting mechanism;

FIG. 7 is a side view of the structure of FIG. 6;

FIG. 8 is an enlarged view of a portion of the structure at A in FIG. 7;

FIG. 9 is a front view of the structure of FIG. 6;

FIG. 10 is a schematic view of the bottom view of FIG. 6;

FIG. 11 is a schematic structural view of the support mechanism;

FIG. 12 is a side view of the structure of FIG. 11;

FIG. 13 is a schematic view of the bottom view of FIG. 11;

fig. 14 is a schematic structural view of the clamping assembly.

In the drawings, the components represented by the respective reference numerals are listed below:

1-moving base, 101-bearing, 102-mounting plate, 103-driving motor, 104-threaded rod, 105-push plate, 106-roller, 107-first limit sliding groove, 108-rack, 109-annular groove channel, 110-fixed groove, 2-hot melting mechanism, 201-fixed plate, 202-supporting rod, 203-mounting groove, 204-positioning spring, 205-positioning plate, 206-positioning groove, 207-fixed rod, 208-rotating plate, 209-mounting ring, 210-hot melting plate, 211-positioning ball, 212-operating rod, 213-reset spring, 214-positioning plate, 215-pull rod, 216-control panel, 217-upright post, 218-toothed ring, 3-supporting mechanism, 31-supporting component, 3101, an arc bottom plate, a 3102 vertical plate, a 3103 fixing hole, a 3104 first support, a 3105 second support, a 3106 second limiting sliding groove, a 3107 cross rod, a 3108 controller, a 3109 electric push rod, a 32 clamping component, a 3201 clamp, a 3202 connecting seat and a 4-PE pipe.

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.

The first embodiment is as follows:

referring to fig. 1-14, the invention is a welding device based on an adjusting assembly and specially used for PE pipe hot melt welding, comprising a movable base 1;

the central position of the upper surface of the movable base 1 is rotationally connected with a hot melting mechanism 2; the upper surface of the movable base 1 is symmetrically connected with two supporting mechanisms 3 in a sliding way;

wherein, the supporting mechanism 3 is composed of a supporting component 31 and a clamping component 32; the supporting component 31 is fixedly connected with the clamping component 32; the PE pipe 4 is clamped inside the clamping assembly 32; through the setting of hot melt mechanism 2 for treat the hot melt of welded end face to PE pipe 4 and handle, thereby realize the hot melt welding of two PE pipes 4, utilize supporting mechanism 3 to support PE pipe 4 fixedly.

Wherein, the hot melting mechanism 2 comprises two fixed disks 201 which are arranged up and down; the two fixed trays 201 are fixedly connected through a support rod 202;

the upper surface of the fixed disc 201 positioned below is provided with a mounting groove 203; the bottom in the mounting groove 203 is fixedly connected with a plurality of positioning springs 204; the upper end of the positioning spring 204 is fixedly connected with a positioning disc 205;

a plurality of telescopic parts are fixedly connected between the bottom in the mounting groove 203 and the positioning disc 205, and the telescopic parts are sleeved inside the positioning spring 204; the positioning disc 205 has a positioning groove 206 on its upper surface.

Wherein, the lower surface of the fixed disc 201 positioned above is fixedly connected with a fixed bar 207; wherein, the fixed rod 207 is externally and rotatably connected with a rotating disc 208, and the outer wall of the rotating disc 208 is fixedly connected with a mounting ring 209; the inner wall of the mounting ring 209 is fixedly provided with a hot melt plate 210 for hot melt processing of the end faces to be welded of the PE pipes 4, so that hot melt welding of the two PE pipes 4 is realized;

the outer wall of the mounting ring 209 is fixedly connected with a positioning ball 211; the positioning ball 211 is matched with the positioning groove 206; when the mounting ring 209 is rotated along the fixing rod 207, the rotation of the hot melt plate 210 can be realized, when the hot melt plate 210 is rotated downwards, the positioning ball 211 is attached to the positioning disc 205, the positioning disc 205 is gradually pressed, the positioning spring 204 is compressed at the moment, when the positioning ball 211 is moved to be clamped in the positioning groove 206 on the positioning disc 205, the clamping connection between the mounting ring 209 and the positioning disc 205 is realized, and at the moment, the hot melt plate 210 is in a vertical state, so that the hot melt welding of the two PE pipes 4 at the height is realized;

the opposite two side surfaces of the mounting ring 209 are fixedly connected with operating rods 212, and when the operating rods 212 are held by hands, the mounting ring 209 can rotate.

Wherein, the side of the support rod 202 close to the melt plate 210 is fixedly connected with a return spring 213; one end of the return spring 213 is fixedly connected with a positioning plate 214; the positioning plate 214 is used in cooperation with the positioning ball 211; when the positioning ball 211 on the outer wall of the mounting ring 209 is attached to the positioning plate 214, the hot melt plate 210 is in a horizontal state, and at this time, the hot melt welding of the two PE pipes 4 at the height can be realized;

a pull rod 215 is fixedly connected to the side surface of the positioning plate 214 close to the return spring 213; one end of the pull rod 215 penetrates through one side surface of the support rod 202; when pulling the pull rod 215 in the direction far away from the hot melt plate 210, the return spring 213 is compressed, the positioning plate 214 is separated from the positioning ball 211, the rotation of the hot melt plate 210 can be realized at the moment, the hot melt plate 210 is convenient to rotate to another position to perform the hot melt welding of another group of PE pipes 4, the hot melt welding of a plurality of groups of PE pipes 4 can be realized at the same time, and the hot melt welding efficiency of the PE pipes 4 is greatly improved.

Wherein, the upper surface of the fixed disc 201 positioned above is fixedly provided with a control panel 216, and the start and stop of the controller 3108 for each electric push rod 3109 and the start and stop of the driving motor 103 can be respectively realized through the control panel 216;

the lower surface of the fixed disc 201 positioned below is fixedly connected with an upright post 217; a toothed ring 218 is fixedly connected to the peripheral side surface of the upright post 217;

the bearing 101 is fixedly arranged at the center of the upper surface of the movable base 1, and the bearing 101 is fixedly connected with the upright post 217;

the upper surface of the movable base 1 is symmetrically and fixedly connected with two mounting plates 102; one side surface of one mounting plate 102 is fixedly provided with a driving motor 103; one end of an output shaft of the driving motor 103 is fixedly connected with a threaded rod 104; one end of the threaded rod 104 is rotatably connected to one side of the other mounting plate 102.

Wherein, the peripheral side surface of the threaded rod 104 is in threaded connection with two push plates 105; the bottom of the push plate 105 is provided with a plurality of rollers 106; the roller 106 is matched with the movable base 1 in a rolling way, so that the friction force of the roller 106 in moving can be reduced, and the push plate 105 can move conveniently;

the upper surface of the movable base 1 is provided with a first limiting chute 107; a rack 108 is fixedly connected inside the first limiting chute 107 through a first sliding block; the rack 108 is meshed with the gear ring 218;

the rack 108 is located between the two push plates 105 and magnetically attracted to the push plates 105, the push plates 105 and the rack 108 can be connected together, when the hot-melt welding of the PE pipes in different directions is required, the driving motor 103 is started, the rack 108 is driven to slide along the first limiting sliding groove 107 by the threaded fit between the threaded rod 104 and the push plates 105, and then the rotation of the hot-melt mechanism 2 is realized by the meshing action of the rack 108 and the toothed ring 218, so that the hot-melt welding of the PE pipes in different directions can be met, and the application range of the invention is greatly increased.

Wherein, the upper surface of the movable base 1 is provided with an annular channel 109; a plurality of fixing grooves 110 are annularly formed on the circumferential side surface of the movable base 1;

the support assembly 31 includes an arcuate base plate 3101; the arc-shaped bottom plate 3101 is in sliding fit with the annular channel 109;

the outer wall of the arc-shaped bottom plate 3101 is fixedly connected with a vertical plate 3102; a fixing hole 3103 matched with the fixing groove 110 for use is formed in the side surface of the vertical plate 3102; when the hot melting mechanism 2 is rotated to a desired orientation, the support assembly 31 is correspondingly moved along the annular groove 109 to a position matched with the hot melting mechanism 2, the PE pipe is supported by the support assembly 31, and the PE pipe is stably clamped by the clamping assembly 32.

Wherein, the upper surface of the arc-shaped bottom plate 3101 is fixedly connected with a first bracket 3104 and a second bracket 3105 respectively;

a side surface of the first support 3104 and a side surface of the second support 3105 are both provided with a second limiting sliding groove 3106; a cross bar 3107 is fixedly connected inside the second limiting sliding groove 3106 through a second sliding block; the cross bar 3107 is fixedly connected with the clamping assembly 32;

the side of the first bracket 3104 adjacent to the second limiting runner 3106 and the side of the second bracket 3105 adjacent to the second limiting runner 3106 are each mounted with a controller 3108; an electric push rod 3109 is fixed at the output end of the controller 3108; the electric push rod 3109 is fixedly connected with the cross bar 3107;

the clamping assembly 32 is composed of two clamps 3201 and a connecting seat 3202 which are arranged up and down; the connecting seat 3202 is hinged with the clamp 3201; the connecting seat 3202 is fixedly connected with the cross bar 3107; when the PE pipe is clamped and fixed by the clamping assembly 32, the electric push rod 3109 is controlled by the controller 3108, and then the electric push rod 3109 is used for pushing the cross rod 3107 to move along the second limiting sliding groove 3106, so that the horizontal movement of the clamping assembly 32 is realized, the movement of the PE pipe fixed by clamping is realized, the hot-melt welding of the PE pipe is facilitated, the labor intensity of workers is greatly reduced, and the efficiency of the hot-melt welding is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device based on an adjusting assembly and specially used for PE pipe hot melt welding comprises a movable base (1); the method is characterized in that:

the center of the upper surface of the movable base (1) is rotatably connected with a hot melting mechanism (2);

the upper surface of the movable base (1) is symmetrically and slidably connected with two supporting mechanisms (3);

wherein the supporting mechanism (3) consists of a supporting component (31) and a clamping component (32); the supporting component (31) is fixedly connected with the clamping component (32);

the clamping assembly (32) clamps the PE pipe (4) therein.

2. The welding equipment special for the hot melt welding of the PE pipe based on the adjusting assembly is characterized in that the hot melt mechanism (2) comprises two fixed disks (201) which are arranged up and down; the two fixed disks (201) are fixedly connected through a support rod (202);

the upper surface of the fixed disc (201) positioned below is provided with a mounting groove (203); the bottom in the mounting groove (203) is fixedly connected with a plurality of positioning springs (204); the upper end of the positioning spring (204) is fixedly connected with a positioning disc (205);

a plurality of telescopic parts are fixedly connected between the bottom in the mounting groove (203) and the positioning disc (205), and the telescopic parts are sleeved in the positioning spring (204);

the upper surface of the positioning disc (205) is provided with a positioning groove (206).

3. The welding equipment special for the PE pipe hot melt welding based on the adjusting assembly is characterized in that a fixing rod (207) is fixedly connected to the lower surface of the fixing disc (201) located above the welding equipment;

the outer part of the fixed rod (207) is rotatably connected with a rotating disc (208), and the outer wall of the rotating disc (208) is fixedly connected with a mounting ring (209); the inner wall of the mounting ring (209) is fixedly provided with a hot melt plate (210);

the outer wall of the mounting ring (209) is fixedly connected with a positioning ball (211); the positioning ball (211) is matched with the positioning groove (206) for use;

and the two opposite side surfaces of the mounting ring (209) are fixedly connected with operating rods (212).

4. The special welding equipment for the PE pipe hot melt welding based on the adjusting assembly is characterized in that a return spring (213) is fixedly connected to the side surface, close to the hot melt plate (210), of the supporting rod (202); one end of the return spring (213) is fixedly connected with a positioning plate (214); the positioning plate (214) is matched with the positioning ball (211);

a pull rod (215) is fixedly connected to the side surface, close to the return spring (213), of the positioning plate (214); one end of the pull rod (215) penetrates through one side face of the support rod (202).

5. The welding equipment special for the PE pipe hot melt welding based on the adjusting assembly is characterized in that a control panel (216) is fixedly installed on the upper surface of the fixed disc (201) located above;

the lower surface of the fixed disc (201) positioned below is fixedly connected with an upright post (217); a gear ring (218) is fixedly connected to the peripheral side surface of the upright post (217);

the center of the upper surface of the movable base (1) is fixedly provided with a bearing (101), and the bearing (101) is fixedly connected with the upright post (217).

6. The special welding equipment for the PE pipe hot melt welding based on the adjusting assembly is characterized in that two mounting plates (102) are symmetrically and fixedly connected to the upper surface of the movable base (1);

one side surface of one mounting plate (102) is fixedly provided with a driving motor (103); one end of an output shaft of the driving motor (103) is fixedly connected with a threaded rod (104); one end of the threaded rod (104) is rotatably connected with one side surface of the other mounting plate (102).

7. The welding equipment special for the hot melt welding of the PE pipes based on the adjusting assembly is characterized in that two push plates (105) are connected to the peripheral side surface of the threaded rod (104) in a threaded mode; the bottom of the push plate (105) is provided with a plurality of rollers (106); the roller (106) is matched with the movable base (1) in a rolling way;

the upper surface of the movable base (1) is provided with a first limiting sliding groove (107); a rack (108) is fixedly connected inside the first limiting sliding groove (107) through a first sliding block; the rack (108) is meshed with the gear ring (218);

the rack (108) is positioned between the two push plates (105) and is magnetically attracted with the push plates (105).

8. The welding equipment special for the hot-melt welding of the PE pipes based on the adjusting assembly according to claim 7, wherein the upper surface of the moving base (1) is provided with an annular channel (109);

the circumferential side surface of the movable base (1) is provided with a plurality of fixing grooves (110) along the circumferential direction;

the supporting component (31) comprises an arc-shaped bottom plate (3101); the arc-shaped bottom plate (3101) is in sliding fit with the annular channel (109);

the outer wall of the arc-shaped bottom plate (3101) is fixedly connected with a vertical plate (3102); the side surface of the vertical plate (3102) is provided with a fixing hole (3103) matched with the fixing groove (110).

9. The welding equipment special for the hot melt welding of the PE pipes based on the adjusting assembly is characterized in that a first bracket (3104) and a second bracket (3105) are fixedly connected to the upper surface of the arc-shaped bottom plate (3101) respectively;

a second limiting sliding groove (3106) is formed in one side surface of the first bracket (3104) and one side surface of the second bracket (3105); a cross bar (3107) is fixedly connected inside the second limiting sliding groove (3106) through a second sliding block; the cross bar (3107) is fixedly connected with the clamping component (32).

10. The welding equipment special for the hot melt welding of the PE pipes based on the adjusting assembly is characterized in that the controller (3108) is arranged on the side surface of the first bracket (3104) close to the second limiting sliding groove (3106) and the side surface of the second bracket (3105) close to the second limiting sliding groove (3106); an electric push rod (3109) is fixed at the output end of the controller (3108); the electric push rod (3109) is fixedly connected with the cross rod (3107);

the clamping component (32) consists of two hoops (3201) and a connecting seat (3202) which are arranged up and down; the connecting seat (3202) is hinged with the hoop (3201);

the connecting seat (3202) is fixedly connected with the cross rod (3107).