A pipe and fitting connection

Abstract

The present application provides a kind of pipe and pipe joint connecting device, belong to pipe processing technical field.It solves the problem of poor stability of existing pipe and pipe joint connection.The pipe and pipe joint connecting device includes workbench, workbench is equipped with the limiting seat that can be placed and the circumferential limiting of pipe, workbench is equipped with auxiliary heating component and adjusting assembly, auxiliary heating component includes the heating block one that can swing along transverse direction and move vertically, heating block one has heating wall that is cylindrical and can be embedded in the mounting hole of pipe, adjusting assembly includes the clamping jaw for pipe joint clamping and the heating block two with heating groove, clamping jaw can move along vertical direction and drive pipe joint to insert into heating groove or the mounting hole of pipe.The pipe and pipe joint connecting device has the advantage of ensuring to increase the heating area of pipe joint and pipe while increasing the stability of pipe joint insertion.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe fitting processing and relates to a connecting device for a pipe fitting and a pipe joint. BACKGROUND

[0002] With the continuous improvement of people's life, the use frequency of water pipes is also continuously improved, and in most pipe arrangement, a tee joint or the like is usually required at a corner to realize the connection between two or three water pipes, but the connection needs to add a stable sealing ring or the like between the water pipe and the pipe joint to ensure the sealing performance of the connection between the water pipe and the pipe joint. However, the sealing ring is prone to aging in the long-term use process, so that the sealing performance between the water pipe and the pipe joint is reduced after long-term use, and therefore the existing method is to punch a hole in the water pipe and directly melt-connect the pipe joint in the hole of the water pipe.

[0003] For example, a plastic pipe connecting piece processing equipment and method is disclosed in Chinese Patent Application

Grant Announcement No. CN103568319B

[0004] The above structure is to heat the branch pipes and the main pipe by arranging the heating component between the branch pipes and the main pipe, but the heating component is plate-shaped and cannot be embedded into the connecting hole of the main pipe or the branch pipes, in order to ensure the simultaneous heating and improve the stability of the heating of the main pipe and the branch pipes, the above structure can only heat the end surfaces of the branch pipes and the main pipe, the connecting contact surface between the branch pipes and the main pipe is only the end surface of the branch pipes and the end surface of the main pipe, and the connection between the branch pipes and the main pipe is unstable. SUMMARY

[0005] The application aims at the above problems of the existing technology and provides a connecting device for a pipe fitting and a pipe joint.

[0006] The application can be realized by the following technical scheme.

[0007] The utility model provides a kind of pipe and pipe joint connecting device, including workbench, the workbench is equipped with the limiting seat that can be placed and the circumferential location of pipe, it is characterized in that, the workbench is equipped with auxiliary heating component and adjusting assembly, the auxiliary heating component includes the heating block one that can swing along transverse and move vertically, the heating block one has heating wall that is cylindrical and can be embedded in the mounting hole of pipe, the adjusting assembly includes the clamping jaw for pipe joint clamping and the heating block two with heating groove, clamping jaw can be moved vertically and drive pipe joint inserts into heating groove or the mounting hole of pipe.

[0008] Working principle: pipe is placed on limiting seat, limiting seat realizes the circumferential location of pipe, by swinging heating block one to heating block one is located above the mounting hole of pipe, then heating block one is moved down to the heating wall of heating block one is embedded into the mounting hole of pipe, heating block one heats the hole wall of pipe mounting hole, while pipe joint is embedded into the heating groove of heating block two, heating block two heats the outer wall of pipe joint, when heating block one completes heating, heating block one is lifted and swings to initial position along transverse, while clamping jaw is moved up to pipe joint and heating block two is separated, then heating block two removes along transverse, then pipe joint after heating is embedded into the mounting hole of pipe, the connection of pipe joint and pipe is completed, synchronous heating of pipe and pipe joint is completed, it is inserted into heating block two, heating block one is inserted into pipe, instead of heating upper end surface of pipe and lower end surface of pipe joint, increase the heating area of pipe joint and pipe, then heating block two and heating block one are removed, and limiting seat is circumferentially positioned to pipe, clamping jaw is only vertically moved, ensure that pipe joint can be stably inserted into the mounting hole of pipe along vertical when moving down, without transverse deviation, ensure that the stability of pipe joint insertion is increased while increasing the heating area of pipe joint and pipe.

[0009] In the above-mentioned pipe and pipe joint connecting device, the adjusting assembly includes a support shaft rotatably connected to the workbench, the support shaft has a work plate one and a work plate two successively sleeved thereon, the work plate one is vertically positioned on the support shaft, the work plate one is transversely slidably connected with a mounting plate, the mounting plate is fixedly connected with the heating block two, and the work plate two is fixedly connected with the clamping jaw and vertically slidably moves along the support shaft.

[0010] By coaxially arranging the work plate one and the work plate two, and slidably connecting the mounting plate with the work plate one, the transverse sliding of the heating block two is more stable, and the movement of the clamping jaw is the vertical movement of the entire work plate two along the support shaft, so that the movement of the clamping jaw and the mounting plate is more stable and does not interfere with each other during movement, further improving the stability of the connecting device.

[0011] In the pipe and pipe joint connecting device, the second working plate is long strip-shaped, the middle part of the second working plate is sleeved on the supporting shaft, the clamping jaw is arranged at one end of the second working plate, and a guide column is arranged at the other end of the second working plate, and one end of the guide column is fixedly connected with the first working plate.

[0012] By sleeving the middle part of the second working plate on the supporting shaft and arranging the guide column at the other end of the second working plate, one end of the guide column is connected with the first working plate, so that the weights of the two ends of the second working plate are basically the same, and the two-point vertical sliding of the middle part of the second working plate and the other end of the second working plate during sliding is realized, so that the second working plate can realize the circumferential limiting of the second working plate during sliding, and the inclination and other conditions are avoided, and the stability of the vertical sliding of the pipe joint driven by the clamping jaw is further improved.

[0013] In the pipe and pipe joint connecting device, the connecting device further comprises a first hinged rod and a second hinged rod, one end of the first working plate is connected with the guide column, and the outer side wall of the one end is hinged with one end of the first hinged rod, the outer side wall of the middle part of the second working plate is hinged with the middle part of the second hinged rod, the other end of the first hinged rod is suspended and hinged with one end of the second hinged rod, and the other end of the second hinged rod is suspended and arranged towards the limiting seat.

[0014] By arranging the first hinged rod and the second hinged rod, the lifting of the second working plate can be manually controlled, and the operation of the staff is facilitated, and the middle part of the second hinged rod is hinged with the outer side wall of the middle part of the second working plate, so that the movement of the second working plate driven by the second hinged rod is more convenient and stable.

[0015] In the pipe and pipe joint connecting device, the hinged position of the first hinged rod and the second hinged rod is located between the hinged position of the first hinged rod and the first working plate and the hinged position of the second hinged rod and the second working plate, and the distance between one end of the second hinged rod and the hinged position of the second hinged rod and the second working plate is less than the distance between the hinged position of the second hinged rod and the second working plate and the other end of the second hinged rod.

[0016] The structure is arranged, so that the hinged position of the first hinged rod and the first working plate, the hinged position of the second hinged rod and the first working plate, and the hinged position of the second hinged rod and the second working plate form a triangle, when the suspended one end of the second hinged rod is vertically slid, the second working plate can be stably vertically slid, and the stability of the sliding of the second working plate is improved; and the length distribution of the second hinged rod makes the force arm of the second hinged rod longer, according to the principle of lever, the staff can save more labor when pushing the second hinged rod to swing, and the convenience of use of the connecting device is further improved.

[0017] In the pipe and pipe joint connecting device, the mounting plate and the working plate two are both long strips, one end of the mounting plate is slidably connected to the working plate two along the length direction of the working plate two, the mounting plate is located on the side of the working plate one not connected to the articulated rod one, the side of the other end of the mounting plate is protruded along the width direction to form a mounting portion, and the heating block two is fixed to the mounting portion.

[0018] The sliding direction of the mounting plate is arranged to enable the mounting plate to quickly move out of the pipe laterally, the mounting portion is arranged to enable the mounting plate to give way to the support shaft during sliding, and the position of the mounting plate does not affect the arrangement of the articulated rod one, thereby further improving the stability of the connecting device.

[0019] In the pipe and pipe joint connecting device, the working plate two is threadedly connected with a limiting screw, the head of the limiting screw is arranged between the working plate one and the working plate two, and the working plate two is lowered to abut against the head of the limiting screw.

[0020] The arrangement of the limiting screw avoids extrusion of the pipe joint on the pipe during downward movement, and the height of the limiting screw can be adjusted to control the downward stroke of the working plate two during processing of pipes of different sizes, thereby further improving the stability of the connecting device.

[0021] In the pipe and pipe joint connecting device, the auxiliary heating assembly includes a mounting rod rotatably connected to the workbench, an auxiliary mounting plate is sleeved on the mounting rod, the heating block one is connected to the auxiliary mounting plate, the auxiliary mounting plate can swing laterally around the mounting rod, a return spring is further sleeved on the mounting rod, and the return spring is arranged between the workbench and the auxiliary mounting plate.

[0022] The arrangement of the return spring enables the heating block one to quickly return after heating, the arrangement of the auxiliary mounting plate facilitates arrangement of the heating component of the heating block one and also plays a certain guiding role, thereby further improving the stability of lateral swinging and vertical sliding of the heating block two.

[0023] In the pipe and pipe joint connecting device, the auxiliary heating assembly and the adjusting assembly are both arranged on the same side of the limiting seat.

[0024] Since the vertical movement of the working plate two in the adjusting assembly of the connecting device needs to be operated by the staff, the auxiliary heating assembly and the adjusting assembly are arranged on one side of the pipe, so that the staff can operate on the other side of the pipe, thereby improving the convenience of operation and the rational use of space.

[0025] In the pipe and pipe joint connecting device, the workbench is further provided with a sliding rail, a sliding plate is slidably connected to the sliding rail, the limiting seat is fixed to the sliding plate, a plurality of clamping grooves penetrating the sliding plate in the vertical direction are formed in the sliding plate, a plurality of positioning rods are hingedly connected to the workbench and distributed along the length direction of the sliding rail, the positioning rods are located at the side of the limiting seat where no auxiliary heating assembly and adjusting assembly are arranged, and the positioning rods can be swung into the corresponding clamping grooves after the sliding plate is slid into position.

[0026] The sliding plate and the sliding rail are matched to arrange the adjusting assembly and the auxiliary heating assembly without moving positions, so that the pipe joints on the pipe can be connected after the sliding plate is moved to the specified position along the sliding rail, the limiting and unlimiting of the sliding plate are facilitated for the operation of the operator, and the use convenience of the connecting device is further improved.

[0027] In the pipe and pipe joint connecting device, the sliding plate is fixedly connected with a plurality of pressing rods arranged at one side of the limiting seat, the pressing rods are provided with a plurality of pressing plates capable of vertically limiting the pipe in the limiting seat, adjusting holes are formed in the pressing plates along the width direction of the sliding plate, the pressing rods can move in the corresponding adjusting holes, and the pressing rods are located at the side of the limiting seat where no auxiliary heating assembly and adjusting assembly are arranged.

[0028] The pressing rods and the pressing plates are matched to vertically position the pipe, the adjusting holes in the pressing plates facilitate the pressing plates to be sleeved on the pressing rods and vertically limit the pipes of different sizes, the position of the pressing rods is convenient for the operator to take and place, and the positioning convenience of the pipe is further improved.

[0029] In the pipe and pipe joint connecting device, the limiting seat is a plate-shaped V-shaped structure, and the end of the limiting seat is folded to form a baffle vertically arranged and capable of abutting against the end of the pipe.

[0030] The structure is arranged to stably place the pipe in the limiting seat, and to process and position the pipes with little size difference, thereby further improving the practicability of the connecting device.

[0031] The clamping jaw adopts a three-jaw chuck to connect the pipe joints and the pipes of different sizes, thereby improving the practicability of the connecting device.

[0032] In the pipe and pipe joint connecting device, the workbench is further provided with a punching assembly, the punching assembly is located at one end of the adjusting assembly, the auxiliary heating assembly is located at the other end of the adjusting assembly, the punching assembly comprises a punching base and a motor slidably connected to the punching base, and a punching rod capable of vertically punching the pipe is connected to the motor shaft of the motor.

[0033] The pipe fitting is placed on the limiting seat and vertically positioned through the pressing plate, the punching assembly punches the pipe fitting at the specified position, the hole is a mounting hole, after the punching is completed, the sliding plate is longitudinally slid, the sliding plate is positioned through the positioning rod after being slid to the corresponding position, the pipe joint is continuously inserted into the mounting hole of the pipe fitting, so that the punching processing of the pipe fitting and the positioning of the pipe fitting and the pipe joint are completed, and the convenience of the connecting device is further improved.

[0034] Compared with the prior art, the application has the advantages of:

[0035] 1. Synchronous heating of the pipe fitting and the pipe joint, inserting the pipe joint into the heating block two, inserting the heating block one into the pipe fitting, instead of heating the upper end face of the pipe fitting and the lower end face of the pipe joint, increasing the heating area of the pipe fitting and the pipe joint, withdrawing the heating block two and the heating block one, and circumferentially limiting the pipe fitting through the limiting seat, and only vertically moving the clamping jaw, ensuring that the pipe joint can be stably inserted into the mounting hole of the pipe fitting in the vertical direction when descending, and avoiding horizontal deviation, while ensuring the increase of the heating area of the pipe joint and the pipe fitting, the stability of the pipe joint and the pipe fitting is increased.

[0036] 2. The middle part of the working plate two is sleeved on the supporting shaft, a guide column is inserted at the other end of the working plate two, one end of the guide column is connected with the working plate one, the weights of the two ends of the working plate two are substantially the same, and the middle part of the working plate two and the other end of the working plate two are vertically slid during sliding, so that the working plate two can realize circumferential limiting of the working plate two during sliding, inclination and other conditions are avoided, and the stability of the clamping jaw driving the pipe joint to vertically slide is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the application.

[0038] Figure 2 It is Figure 1 The local enlarged view of A in the middle.

[0039] Figure 3 It is one of the structural schematic diagrams of the adjusting assembly and the pipe joint after assembly without the supporting spring in the application.

[0040] Figure 4 It is the second structural schematic diagram of the adjusting assembly and the pipe joint after assembly without the supporting spring in the application.

[0041] In the figure, 1, workbench; 11, slide rail; 12, positioning rod; 2, slide plate; 21, limiting seat; 21a, baffle; 22, clamping groove; 23, pressing rod; 23a, adjusting hole; 24, pressing plate; 3, punching assembly; 31, punching base; 32, motor; 33, punching rod; 4, adjusting assembly; 41, clamping jaw; 42, heating block two; 42a, heating groove; 43, support shaft; 44, work plate one; 44a, connecting plate; 44b, sliding groove; 44c, mounting plate; 44d, mounting portion; 45, work plate two; 45a, guide column; 45b, limiting screw; 46, hinged rod one; 47, hinged rod two; 48, supporting spring; 49, clamp; 5, auxiliary heating assembly; 51, heating block one; 51a, heating wall; 52, mounting rod; 53, auxiliary mounting plate; 54, return spring; 6, pipe fitting; 61, mounting hole; 7, pipe joint. DETAILED DESCRIPTION

[0042] The following is a specific embodiment of the present application and in conjunction with the drawings, the technical solutions of the present application are further described, but the present application is not limited to these embodiments.

[0043] As Figure 1 and Figure 2 shown, the connecting device of the pipe fitting and the pipe joint, comprising a workbench 1, the workbench 1 is provided with a slide rail 11 and a slide plate 2 slidably connected on the slide rail 11, the slide plate 2 is fixedly connected with a limiting seat 21 for placing the pipe fitting 6 and limiting the circumferential direction of the pipe fitting 6, the limiting seat 21 is a V-shaped plate, the end of the limiting seat 21 is folded to form a baffle 21a vertically arranged and capable of abutting against the end of the pipe fitting 6.

[0044] Specifically, as Figures 1-4As shown, the workbench 1 is sequentially provided with the punching assembly 3, the auxiliary heating assembly 5 and the adjusting assembly 4, the punching assembly 3, the auxiliary heating assembly 5 and the adjusting assembly 4 are arranged at one side of the limiting seat 21, the slide plate 2 is provided with a plurality of clamping grooves 22 penetrating the slide plate 2 in the vertical direction, the workbench 1 is hingedly provided with a plurality of positioning rods 12 distributed along the length direction of the slide rail 11, the positioning rods 12 are located at the other side of the limiting seat 21, the positioning rods 12 can be swung to be embedded in the corresponding clamping grooves 22 after the slide plate 2 is slid to the position, the punching assembly 3 is located at one end of the adjusting assembly 4, the auxiliary heating assembly 5 is located at the other end of the adjusting assembly 4, the punching assembly 3 comprises a punching base 31 and a motor 32 slidably connected to the punching base 31, a punching rod 33 capable of vertically punching the pipe fitting 6 is connected to the motor shaft of the motor 32, the auxiliary heating assembly 5 comprises a heating block one 51 capable of swinging in the horizontal direction and moving in the vertical direction, the heating block one 51 has a heating wall 51a in the shape of a cylinder and capable of being embedded in the mounting hole 61 of the pipe fitting 6, the adjusting assembly 4 comprises a clamping jaw 41 capable of vertically sliding and used for clamping the pipe joint 7 and a heating block two 42 having a heating groove 42a, the heating block one 51 can be swung in the horizontal direction to be located above the pipe fitting 6 and then be moved in the vertical direction to be embedded in the mounting hole 61 of the pipe fitting 6 at one end, the heating block one 51 is moved out of the pipe fitting 6 while the clamping jaw 41 is vertically moved, then the clamping jaw 41 is vertically moved and the pipe joint 7 is inserted into the heating groove 42a or the mounting hole 61 of the pipe fitting 6.

[0045] The punching assembly 3 punches the pipe 6 at a designated position, and the hole is the mounting hole 61. After the punching is completed, the slide plate 2 is longitudinally slid, and after the slide plate 2 is slid to the corresponding position, the slide plate 2 is positioned by the positioning rod 12. The heating block one 51 is swung along the transverse direction until the heating wall 51a of the heating block one 51 is located above the mounting hole 61 of the pipe 6, and then the heating block one 51 is moved downward until the heating block one 51 is embedded into the mounting hole 61 of the pipe 6. The heating block one 51 heats the hole wall of the mounting hole 61 of the pipe 6, and at the same time, the pipe joint 7 is embedded into the heating groove 42a of the heating block two 42, and the heating block two 42 heats the outer wall of the pipe joint 7. When the heating of the heating block one 51 is completed, the heating block one 51 is lifted and swung to the initial position in the transverse direction, and then the clamping jaw 41 is moved upward until the pipe joint 7 is separated from the heating block two 42. Then, the heating block two 42 is moved away from between the pipe 6 and the pipe joint 7 in the transverse direction. Then, the heated pipe joint 7 is embedded into the mounting hole 61 of the pipe 6, and the connection of the pipe joint 7 and the pipe 6 is completed. The synchronous heating of the pipe 6 and the pipe joint 7 is that the pipe joint 7 is inserted into the heating block two 42, and the heating block one 51 is inserted into the pipe 6. Instead of heating the upper end surface of the pipe 6 and the lower end surface of the pipe joint 7, the heating area of the pipe 6 and the pipe joint 7 is increased. Then, the heating block two 42 and the heating block one 51 are withdrawn, and the pipe 6 is circumferentially positioned by the limiting seat 21. The clamping jaw 41 is only vertically moved, so that the pipe joint 7 can be stably inserted into the mounting hole 61 of the pipe 6 in the vertical direction when the pipe joint 7 is moved downward, and the deviation in the transverse direction is avoided. The heating area of the pipe joint 7 and the pipe 6 is increased, and the stability of the pipe joint 7 is also increased.

[0046] As Figure 1As shown, the adjusting assembly 4 comprises a support shaft 43 rotatably connected to the workbench 1, a workboard one 44 and a workboard two 45 are sequentially sleeved on the support shaft 43, the workboard two 45 is in a strip shape, the middle part of the workboard two 45 is sleeved on the support shaft 43, the workboard one 44 is connected with two connecting plates 44a arranged along the length direction of the workboard one 44, the connecting plates 44a are slidingly connected with a mounting plate 44c along the length direction, the mounting plate 44c is arranged in a sliding groove 44b and slides along the sliding groove 44b, the mounting plate 44c is fixedly connected with the above-mentioned heating block two 42, the workboard two 45 is fixedly connected with the above-mentioned clamping jaw 41, the clamping jaw 41 is arranged at one end of the workboard two 45, a guide column 45a is arranged at the other end of the workboard two 45, the connecting device further comprises a hinged rod one 46 and a hinged rod two 47, one end of the guide column 45a is fixedly connected with the workboard one 44, and the outer side wall of the end is hingedly connected with one end of the hinged rod one 46, the outer side wall of the middle part of the workboard two 45 is hingedly connected with the middle part of the hinged rod two 47, the middle part of the hinged rod two 47 is hingedly connected with the workboard two 45, one end of the hinged rod one 46 is hingedly connected with the workboard one 44, the other end of the hinged rod one 46 is arranged in suspension and is hingedly connected with one end of the hinged rod two 47, the other end of the hinged rod two 47 is arranged in suspension and faces the limiting seat 21, the hinged position of the hinged rod one 46 and the hinged rod two 47 is between the hinged position of the hinged rod one 46 and the workboard one 44 and the hinged position of the hinged rod two 47 and the workboard two 45, the distance between one end of the hinged rod two 47 and the hinged position of the hinged rod two 47 and the workboard two 45 is less than the distance between the hinged position of the hinged rod two 47 and the workboard two 45 and the other end of the hinged rod two 47, a limiting screw 45b is threadedly connected to the workboard two 45, the head of the limiting screw 45b is arranged between the workboard one 44 and the workboard two 45, and the workboard two 45 is lowered to abut against the workboard one 44 at the head of the limiting screw 45b.

[0047] As shown in the figure, Figures 2-4 The mounting plate 44c and the workboard two 45 are both in a strip shape, one end of the mounting plate 44c is slidingly connected with the workboard one 44 along the length direction of the workboard two 45, the mounting plate 44c is arranged on the side of the workboard one 44 which is not connected with the hinged rod one 46, the side edge of the other end of the mounting plate 44c is raised along the width direction to form a mounting part 44d which can be arranged below the clamping jaw 41, the heating block two 42 is fixedly connected to the mounting part 44d, the support shaft 43 is sleeved with a support spring 48 and a clamp 49, the support spring 48 is arranged between the workbench 1 and the clamp 49, and the clamp 49 is arranged below the workboard one 44 and achieves vertical limiting of the workboard one 44.

[0048] As shown in the figure, Figure 1As shown in the figure, the auxiliary heating assembly 5 comprises a mounting rod 52 rotatably connected to the workbench 1, an auxiliary mounting plate 53 sleeved on the mounting rod 52, and the heating block one 51 connected to the auxiliary mounting plate 53. The auxiliary mounting plate 53 can swing transversely along the mounting rod 52. A reset spring 54 is sleeved on the mounting rod 52 and arranged between the workbench 1 and the auxiliary mounting plate 53. The auxiliary heating assembly 5 and the adjusting assembly 4 are located on the same side.

[0049] As shown in the figure, Figure 1 and Figure 2 As shown in the figure, the slide plate 2 is fixedly connected with a plurality of pressing rods 23 arranged on one side of the limiting seat 21. Each of the pressing rods 23 is sleeved with a pressing plate 24 capable of vertically limiting the pipe fitting 6 in the limiting seat 21. The pressing plate 24 is provided with an adjusting hole 23a in the width direction of the slide plate 2, and the pressing rod 23 can move in the corresponding adjusting hole 23a. The pressing rod 23 is located on the side of the limiting seat 21 which is not provided with the auxiliary heating assembly 5 and the adjusting assembly 4.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A device for connecting a pipe fitting and a pipe joint, comprising a workbench (1), wherein the workbench (1) is provided with a limiting seat (21) for placing the pipe fitting (6) and limiting the circumferential position of the pipe fitting (6), characterized in that: The workbench (1) is provided with an auxiliary heating assembly (5) and an adjustment assembly (4), wherein the auxiliary heating assembly (5) comprises a heating block (51) capable of swinging in the horizontal direction and moving in the vertical direction, wherein the heating block (51) has a cylindrical heating wall (51a) capable of being embedded in the mounting hole (61) of the pipe fitting (6), and the adjustment assembly (4) comprises a clamping jaw (41) for clamping the pipe joint (7) and a heating block (42) having a heating groove (42a), wherein the clamping jaw (41) can move in the vertical direction and drive the pipe joint (7) to be inserted into the heating groove (42a) or the mounting hole (6) of the pipe fitting (6). In the mounting hole (61), the adjustment assembly (4) also includes a support shaft (43) rotatably connected to the workbench (1), and the support shaft (43) is sequentially sleeved with a working plate 1 (44) and a working plate 2 (45), the working plate 1 (44) is vertically positioned on the support shaft (43), the working plate 1 (44) is connected to a mounting plate (44c) along a transverse sliding manner, the mounting plate (44c) is fixedly connected to the above-mentioned heating block 2 (42), the working plate 2 (45) is fixedly connected to the above-mentioned clamping claw (41), and the working plate 2 (45) can slide vertically along the support shaft (43).

2. The connecting device of a pipe fitting and a pipe joint according to claim 1, characterized in that: The second working plate (45) is in the shape of an elongated strip. The middle portion of the second working plate (45) is sleeved on the support shaft (43). The clamping claw (41) is arranged at one end of the second working plate (45). The other end of the second working plate (45) is provided with a guide column (45a). One end of the guide column (45a) is fixedly connected to the first working plate (44).

3. The connecting device of a pipe fitting and a pipe joint according to claim 2, characterized in that: The connecting device also includes a hinge rod 1 (46) and a hinge rod 2 (47). One end of the working plate 1 (44) is connected to the guide column (45a), and the outer side wall of the end is hinged to one end of the hinge rod 1 (46). The outer side wall of the middle part of the working plate 2 (45) is hinged to the middle part of the hinge rod 2 (47). The other end of the hinge rod 1 (46) is suspended and hinged to one end of the hinge rod 2 (47). The other end of the hinge rod 2 (47) is suspended toward the limit seat (21).

4. The connecting device of a pipe fitting and a pipe joint according to claim 3, characterized in that: The hinge point of the hinge rod 1 (46) and the hinge rod 2 (47) is located between the hinge point of the hinge rod 1 (46) and the working plate 1 (44) and the hinge point of the hinge rod 2 (47) and the working plate 2 (45), and the distance between one end of the hinge rod 2 (47) and the hinge point of the hinge rod 2 (47) and the working plate 2 (45) is smaller than the distance between the hinge point of the hinge rod 2 (47) and the working plate 2 (45) and the other end of the hinge rod 2 (47).

5. The connecting device of a pipe fitting and a pipe joint according to claim 3, characterized in that: The mounting plate (44c) and the second working plate (45) are both in the shape of long strips. One end of the mounting plate (44c) is slidably connected to the first working plate (44) along the length direction of the second working plate (45). The mounting plate (44c) is located on the side of the first working plate (44) that is not connected to the first hinge rod (46). The side edge of the other end of the mounting plate (44c) is raised along its width direction to form a mounting portion (44d) that can be located below the clamping claw (41). The second heating block (42) is fixedly connected to the mounting portion (44d).

6. The connecting device of a pipe fitting and a pipe joint according to any one of claims 1 to 5, characterized in that: The working plate 2 (45) is threadedly connected to a limiting screw (45b), and the head of the limiting screw (45b) is arranged between the working plate 1 (44) and the working plate 2 (45). The working plate 2 (45) moves down until the head of the limiting screw (45b) abuts against the working plate 1 (44).

7. The connecting device of a pipe fitting and a pipe joint according to any one of claims 1 to 5, characterized in that: The auxiliary heating assembly (5) includes a mounting rod (52) rotatably connected to the workbench (1), an auxiliary mounting plate (53) is sleeved on the mounting rod (52), the auxiliary mounting plate (53) is connected to the above-mentioned heating block (51), the auxiliary mounting plate (53) can swing laterally around the mounting rod (52), and a reset spring (54) is also sleeved on the mounting rod (52), and the reset spring (54) is arranged between the workbench (1) and the auxiliary mounting plate (53).

8. The connecting device of a pipe fitting and a pipe joint according to any one of claims 1 to 5, characterized in that: The auxiliary heating component (5) and the adjustment component (4) are both located on the same side of the limiting seat (21).

9. The connecting device of a pipe fitting and a pipe joint according to any one of claims 1 to 5, characterized in that: The workbench (1) is further provided with a slide rail (11), a slide plate (2) is slidably connected to the slide rail (11), the limit seat (21) is fixed on the slide plate (2), a plurality of slots (22) vertically penetrating the slide plate (2) are provided on the slide plate (2), a plurality of positioning rods (12) distributed along the length direction of the slide rail (11) are hingedly connected to the workbench (1), the positioning rods (12) are located on the side of the limit seat (21) where the auxiliary heating component (5) and the adjustment component (4) are not provided, and after the slide plate (2) slides into place, the positioning rods (12) can swing to be embedded in the corresponding slots (22).

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