Two-way socket joint pipe manufacturing equipment and two-way socket joint pipe

Abstract

The present application relates to a two-way socket joint pipe manufacturing equipment and a two-way socket joint pipe, including a main body; two groups of inner liner displacement mechanisms, symmetrically arranged on the main body to adjust the position of the inner liner and respectively drive the corresponding inner liner to rotate; a hot melt adhesive coating device, which applies hot melt adhesive to the inner liner on the inner liner displacement mechanism; an outer liner gripping assembly, slidably arranged on the main body to grip the outer liner and drive the outer liner to slide; a pressing mechanism, which is used for pressing and fixing the inner liner and the outer liner; a sealing groove pressing piece is raised and lowered on the main body between the two groups of inner liner displacement mechanisms to press and form a sealing groove on the end face of the outer liner; a delivery mechanism for a sealing member and a connecting assembly is provided on one side of the main body. The two-way socket joint pipe includes a two-way socket joint body, a sealing ring and a connecting assembly, and is prepared by pressing and fitting through the two-way socket joint pipe manufacturing equipment. The present application has the effect of improving the sealing and installation convenience of the two-way socket joint pipe while ensuring the firmness during installation.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline equipment, and in particular to a two-way socket joint pipeline manufacturing device and a two-way socket joint pipeline. Background Art

[0002] Pipes with two-way socket joints are widely used in liquid and gas transportation systems in the fields of construction, industry, and municipal administration. This type of pipe system usually consists of a socket and a spigot, and the extension or branching of the pipe is achieved through the socket connection. The socket is one end of the pipe, with a groove or opening that can receive the spigot; the spigot is the other end, designed to be inserted into the socket. This connection method is easy to install and disassemble, and can provide relatively reliable sealing performance.

[0003] Pipeline sealing with two-way socket joints usually relies on mechanical sealing: using sealing rings or gaskets, tightening by bolts or other mechanical means to achieve sealing and bonding connection: using specific adhesives or sealants to fill the gaps at the pipe joints to form a seal.

[0004] Although the existing technology provides a variety of pipe connection and sealing methods, there are still some shortcomings in practical applications. For example, during use, the long-term flushing of liquid in the pipeline will cause the liquid to penetrate into the inner wall of the metal pipe through the gap between different materials, resulting in corrosion failure and corrosion of the pipe wall, affecting the service life of the pipeline and polluting the liquid transported in the pipeline. At the same time, the processing requirements of socket and spigot-matching plugs are higher, and dimensional deviations or insufficient installation force can easily lead to leakage and loosening at the pipeline connection, increasing the difficulty and time cost of engineering installation, and urgently needs improvement. Summary of the invention

[0005] In order to improve the sealing and installation convenience of a two-way socket joint pipe while ensuring the firmness during installation, the present application provides a two-way socket joint pipe manufacturing device and a two-way socket joint pipe.

[0006] The present application provides a two-way socket joint pipe manufacturing device and a two-way socket joint pipe adopting the following technical solution:

[0007] In a first aspect, the present application provides a bidirectional socket joint pipe manufacturing device, comprising:

[0008] The main body, the base of the entire device;

[0009] The inner liner pipe displacement mechanism is arranged on the main body and is used for adjusting the position of the inner liner pipe and can drive the inner liner pipe to rotate;

[0010] A hot melt adhesive coating device is arranged on one side of the main body and is used to coat the inner liner tube on the inner liner tube displacement mechanism with hot melt adhesive;

[0011] An outer liner tube gripping assembly is slidably arranged on the main body for positioning and gripping the outer liner tube and driving the outer liner tube to slide.

[0012] A pressing mechanism is used for pressing and fixing the inner liner tube and the outer liner tube.

[0013] The inner liner tube displacement mechanism, the hot melt adhesive coating device, the outer liner tube gripping assembly and the pressing mechanism are all symmetrically arranged in two groups. A sealing groove pressing member is arranged to move up and down on the main body between the two groups of inner liner tube displacement mechanisms to press and form a sealing groove on the end faces of the two oppositely arranged outer liner tubes after pressing.

[0014] On one side of the main body, there is also a feeding mechanism for the sealing member and the connecting assembly, which is used for connecting and sealing the pressing structures of the two inner liner tubes and the outer liner tubes to form a pipeline structure.

[0015] Optionally, the inner liner tube displacement mechanism includes a first linear module, a second linear module, a displacement seat, an air shaft and a power component. The first linear module is arranged on the main body, the second linear module is arranged on the slider of the first linear module, the displacement seat is arranged on the slider of the second linear module, the air shaft is rotationally arranged on the displacement seat through the drive of the power component, and the inner liner tube can be inserted and fixed with the air shaft.

[0016] Optionally, the outer liner tube gripping assembly includes a sliding block, a first jaw, a second jaw and a driving member. The sliding block is driven to slide on the main body through a third linear module. The first jaw is fixedly connected to the sliding block, and the second jaw is rotationally arranged on the sliding block through the drive of the driving member. The first jaw and the second jaw cooperate to grip the outer liner tube.

[0017] Optionally, the pressing mechanism includes a lifting seat, a lifting power component, a flat pressing block, a flaring block, a pressing and folding ring plate, a first driving cylinder, a second driving cylinder and a third driving cylinder. The lifting seat is arranged to move up and down on the main body through the lifting power component. The lifting seat is in a "U" shape with an open top. Two flat pressing blocks and two flaring blocks are symmetrically arranged. The two flat pressing blocks are respectively driven to slide in the lifting seat in a direction approaching or departing from each other through the first driving cylinder arranged on the lifting seat. The flaring block is in a frustum shape, and the two flaring blocks are driven to slide in the lifting seat in a direction approaching or departing from each other through the second driving cylinder on the inner wall of the lifting seat. The flaring block can penetrate through the flat pressing block. The pressing and folding ring plate is concentrically arranged with the flat pressing plate and is driven to extend into or out of the flat pressing plate through the third driving cylinder.

[0018] Furthermore, a circular chamfer is arranged on the inner wall of the pressing and folding ring plate on the side背离 the third driving cylinder.

[0019] Optionally, the sealing groove pressing piece has a hexagonal cross-section, and one side of the sealing groove pressing piece facing the end face of the outer liner pipe is provided with two symmetrically arranged inclined surfaces, and the main body is provided with a driving cylinder four for driving the sealing groove pressing piece to rise and fall.

[0020] Furthermore, the delivery mechanism includes a rodless cylinder, a delivery seat, a reciprocating motor, a delivery clamp 1, and a delivery clamp 2. The delivery seat is arranged on the rodless cylinder slider to realize reciprocating motion. The rodless cylinder is signal-connected to the driving cylinder 4. The delivery clamp 1 and the delivery clamp 2 are arranged at intervals and are both driven to rotate on the delivery seat by the reciprocating motor. A storage device for storing seals and connecting components is provided on one side of the delivery mechanism.

[0021] Furthermore, the rotation angle of the delivery gripper 1 and the delivery gripper 2 is between 30° and 120°.

[0022] In the second aspect, the present application provides a two-way socket joint pipe, which is prepared using the above-mentioned two-way socket joint pipe manufacturing equipment, including a two-way socket joint body, a sealing ring 1 and a connecting component, wherein two two-way socket joint bodies are symmetrically arranged, and sealing grooves are arranged on opposite sides of the two two-way socket joint bodies. The sealing ring 1 is clamped between the two sealing grooves. The connecting component includes a sealing ring 2 and a connecting outer sleeve. The connecting outer sleeve is sleeved on the outer wall of the joint of the two two-way socket joint bodies. Two sealing rings 2 are arranged at intervals and are clamped on the inner wall of the connecting outer sleeve. The two sealing rings 2 correspond to one two-way socket joint body respectively.

[0023] Optionally, the two-way socket joint body includes an inner lining stainless steel tube, an outer structural tube and a hot melt adhesive layer, the outer structural tube is sleeved outside the inner lining stainless steel tube, both ends of the inner lining stainless steel tube are folded outward, and the outward-folded end is bent toward each other to form a clamping portion, the outer structural tube is clamped in the clamping portions at both ends, the hot melt adhesive layer is filled between the inner lining stainless steel tube and the outer structural tube, and the sealing groove is opened on the outer wall of the outward-folded portion of the inner lining stainless steel tube.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] The two-way socket joint pipe of the present invention is supported against each other by the two end surfaces of the two-way socket joint body, and a sealing groove is set and a sealing ring is pressed between the two end surfaces, and then the two two-way socket joint bodies are tightly fixed by a connecting component, thereby improving the sealing effect between the socket joints and reducing the pressure loss during liquid flow, thereby improving the sealing performance and installation convenience of the two-way socket joint pipe while ensuring the firmness during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric schematic diagram of the overall structure of a two-way socket joint pipe manufacturing device mainly embodied in an embodiment of the present invention;

[0027] Figure 2 It is an axonometric schematic diagram of the overall structure of a two-way socket joint pipe manufacturing device after the hot melt adhesive coating device is hidden in an embodiment of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of the structure of the pressing mechanism of the embodiment of the present invention;

[0029] Figure 4 yes Figure 3 The enlarged schematic diagram of the middle A part;

[0030] Figure 5 The embodiment of the present invention mainly embodies a cross-sectional structural diagram of an overall structure of a two-way socket joint pipeline.

[0031] Figure numerals: 1. main body; 2. displacement mechanism of inner liner tube; 21. first linear module; 22. second linear module; 23. displacement seat; 24. inflatable shaft; 25. power assembly; 251. driving pulley; 252. transmission pulley; 253. synchronous belt; 254. transmission motor; 3. hot melt adhesive coating device; 4. outer liner tube gripping assembly; 41. sliding block; 42. clamping jaw 1; 43. clamping jaw 2; 44. driving member; 5. pressing mechanism; 51. lifting seat; 52. lifting power member; 53. flat pressing block; 531. avoidance groove; 54. expansion block; 55. folding ring plate; 551. round chamfer; 56. driving member Pneumatic cylinder one; 57, driving cylinder two; 58, driving cylinder three; 6, third linear module; 7, sealing groove press-fitting piece; 8, driving cylinder four; 9, delivery mechanism; 91, rodless cylinder; 92, delivery seat; 93, reciprocating motor; 94, delivery clamp one; 95, delivery clamp two; 10, two-way socket joint pipeline; 101, two-way socket joint body; 1011, lined stainless steel pipe; 101A, clamping part; 1012, external structural pipe; 1013, hot melt adhesive layer; 102, sealing ring one; 103, connecting assembly; 1031, sealing ring two; 1032, connecting outer sleeve; 11, sealing groove. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0033] Unless otherwise defined, the technical terms or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "one" or "an" and the like used in the patent application specification and claims of this application do not indicate a quantity limitation, but indicate the existence of at least one.

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] In a first aspect, an embodiment of the present application discloses a bidirectional socket joint pipe manufacturing device.

[0036] Reference Figure 1 and Figure 2 A two-way socket joint pipeline manufacturing equipment includes a main body 1, an inner liner displacement mechanism 2, a hot melt adhesive coating device 3, an outer liner gripping assembly 4 and a pressing mechanism 5. The inner liner displacement mechanism 2, the hot melt adhesive coating device 3, the outer liner gripping assembly 4 and the pressing mechanism 5 are symmetrically installed in two groups. The main body 1 is the base of the entire equipment. The inner liner displacement mechanism 2 is installed on the main body 1 for adjusting the position of the inner liner and can drive the rotation of the inner liner. The hot melt adhesive coating device 3 is installed on one side of the main body 1 for hot melt adhesive coating on the inner liner on the inner liner displacement mechanism 2. The outer liner gripping assembly 4 is slidably installed on the main body 1 for positioning and gripping the outer liner and realizing plug-in cooperation with the inner liner. At the same time, the outer liner gripping assembly 4 can also drive the outer liner to slide. The pressing mechanism 5 is used to realize the pressing and fixing of the inner liner and the outer liner to realize the preparation of the two-way socket joint.

[0037] Reference Figure 1 and Figure 2 The inner liner tube displacement mechanism 2 includes a first linear module 21, a second linear module 22, a displacement seat 23, an inflatable shaft 24 and a power assembly 25. The first linear module 21 is fixedly mounted on the main body 1 by bolts, the second linear module 22 is fixedly mounted on the slider of the first linear module 21 by bolts, the displacement seat 23 is fixedly mounted on the slider of the second linear module 22 by bolts, the inflatable shaft 24 is driven and rotated by the power assembly 25 and is mounted on the displacement seat 23. The sliding direction of the second linear module 22 is the axial direction of the inflatable shaft 24. The inner liner tube can be plugged and fixed with the inflatable shaft 24. The setting of the inflatable shaft 24 can quickly realize the plug-in, fixation and placement of the inner liner tube. In this embodiment, the use and principle of the inflatable shaft 24 are prior art and will not be elaborated on.

[0038] The power assembly 25 includes a driving pulley 251, a driven pulley 252, a synchronous belt 253 and a driving motor 254. The driving motor 254 is installed on the displacement seat 23. The driving pulley 251 is coaxially sleeved and fixed on the output shaft of the driving motor 254. The driven pulley 252 is coaxially sleeved and fixed on the outer wall of the air shaft 24. The synchronous belt 253 is wound around the driven pulley 252 and the driving pulley 251. The hot melt adhesive coating device 3 is installed on one side of the main body 1 of the machine. When performing the coating operation, the first linear module 21 drives the inner liner tube to the spraying nozzle of the hot melt adhesive coating device 3. Subsequently, the second linear module 22 drives the inner liner tube to move axially. While moving, the power assembly 25 drives the inner liner tube to rotate, so that a layer of hot melt adhesive can be evenly coated on the outer wall of the inner liner tube. In this embodiment, the heating and coating device of the hot melt adhesive is prior art and will not be elaborated here.

[0039] Referring to Figure 1 , the outer liner tube gripping assembly 4 includes a sliding block 41, a first jaw 42, a second jaw 43 and a driving member 44. The sliding block 41 is slidably installed on the main body 1 of the machine by driving of the third linear module 6. The first jaw 42 is fixedly connected to the sliding block 41. The second jaw 43 is rotatably installed on the sliding block 41 by driving of the driving member 44. The driving member 44 uses a reciprocating motor 93. The first jaw 42 and the second jaw 43 cooperate to clamp the outer liner tube.

[0040] Referring to Figure 1-Figure 4 , the pressing mechanism 5 includes a lifting seat 51, a lifting power member 52, a flat pressing block 53, a flaring block 54, a pressing and folding ring plate 55, a first driving cylinder 56, a second driving cylinder 57 and a third driving cylinder 58. The lifting seat 51 is installed on the main body 1 of the machine by lifting of the lifting power member 52. The lifting power member 52 uses a motor cooperating with a threaded rod and is guided by a guiding column at the same time. The lifting seat 51 is in a "U" shape with an open top. There are two flat pressing blocks 53, two flaring blocks 54 and two pressing and folding ring plates 55 which are symmetrically arranged. The two flat pressing blocks 53 are respectively slidably arranged between the two inner walls of the lifting seat 51 in a direction approaching or departing from each other by driving of the first driving cylinder 56 installed on the outer wall of the lifting seat 51. The opposite side walls of the two flat pressing blocks 53 are planes. The flaring block 54 is in a frustum shape. The two flaring blocks 54 are slidably installed in the lifting seat 51 in a direction approaching or departing from each other by driving of the second driving cylinder 57 on the inner wall of the lifting seat 51. The flaring block 54 can pass through the flat pressing block 53. An avoidance groove 531 is opened in the middle of the flat pressing block 53. The pressing and folding ring plate 55 is concentric with the flat pressing plate and is driven by the third driving cylinder 58 to extend into or out of the flat pressing plate.

[0041] Before pressing, wait for the hot melt adhesive on the outer wall of the inner liner tube to cool and solidify, and the inner liner tube displacement mechanism 2 drives the inner liner tube to slide until it is opposite to the outer liner tube, that is, when the inner liner tube and the outer liner tube are both cylindrical tubes, the inner liner tube displacement mechanism 2 drives the inner liner tube to be coaxial with the outer liner tube, and then drives the inner liner tube to be inserted into the outer liner tube so that both ends of the inner liner tube are located outside the outer liner tube and extend out the same distance, and then reduces the outer diameter of the inflatable shaft 24, and drives the inflatable shaft 24 away from the inner liner tube to a suitable position through the inner liner tube displacement mechanism 2 and stops the movement of the inner liner tube displacement mechanism 2.

[0042] During pressing, the lifting power part 52 drives the lifting seat 51 to rise, and at the same time drives the two opposite expanding blocks 54 to approach each other through the driving cylinder 2 57 until the inner liner tube is lifted again to be coaxial with the outer liner tube and the two ends extend out to the same distance, and then the expanding blocks 54 are synchronously driven to approach each other again to expand and fold the inner liner tube. When the inner liner tube is expanded to the required position, the driving cylinder 1 56 drives the two flattening blocks 53 to approach each other until the flattening blocks 53 on both sides completely flatten the expanded parts at both ends of the inner liner tube. Finally, the driving cylinder 3 58 drives the folding ring plates 55 on both sides to approach each other, so that the expanded parts at both ends of the inner liner tube after being flattened are bent toward each other under the restriction of the outer liner tube and the folding ring plates 55, thereby realizing the fixation of the inner liner tube and the outer liner tube.

[0043] Furthermore, a round chamfer 551 is provided on the inner wall of the folding ring plate 55 on the side away from the driving cylinder three 58, so as to play a guiding role when the folding part of the inner liner pipe is pressed and bent, so that the bending process is smoother.

[0044] Reference Figure 1-Figure 3 In a further embodiment, a sealing groove pressing piece 7 is installed on the main body 1 between the two sets of inner liner displacement mechanisms 2 to press and form a circle of sealing grooves 11 on the end faces of the two oppositely arranged outer liner pipes after pressing. Specifically, the cross section of the sealing groove pressing piece 7 is hexagonal, and the side of the sealing groove pressing piece 7 facing the end face of the outer liner pipe is two symmetrically arranged inclined surfaces. A driving cylinder 48 for driving the sealing groove pressing piece 7 to rise and fall is installed on the main body 1;

[0045] When the pressing mechanism 5 finishes pressing, the pressing mechanism 5 descends, and the driving cylinder 4 8 starts to drive the sealing groove pressing piece 7 to move downward to the middle of the two pressed and formed two-way socket joints and face the two-way socket joints. Then, the outer liner grasping assemblies 4 on both sides respectively correspond to the two-way socket joints and move and press them in the direction of approaching each other, and then the sealing groove pressing piece 7 is used to press and form a sealing groove 11 on the opposite surfaces of the inner liner pipes of the two two-way socket joints, so as to facilitate the subsequent connection and sealing between the two two-way socket joints.

[0046] Reference Figure 1 and Figure 2A delivery mechanism 9 for delivering and installing the seal and the connecting assembly 103 is also installed on one side of the main body 1, which is used for connecting and sealing the pressed structure of the two inner liner pipes and the outer liner pipe to form a pipeline structure.

[0047] The delivery mechanism 9 includes a rodless cylinder 91, a delivery seat 92, a reciprocating motor 93, a delivery gripper 94 and a delivery gripper 95. The rodless cylinder 91 is mounted on the main body 1 and is located between the two lifting seats 51. The delivery seat 92 is fixedly mounted on the slider of the rodless cylinder 91 by bolts to achieve reciprocating motion. The rodless cylinder 91 is connected to the drive cylinder 48 by signal. The delivery gripper 94 and the delivery gripper 95 are arranged at intervals and are driven to rotate by the corresponding reciprocating motor 93. On the delivery seat 92, the rotation angle of the delivery clamp 94 and the delivery clamp 95 is in the range of 30°-120°. The delivery clamp 94 is used for clamping and delivering the sealing ring. The width of the delivery clamp 94 is smaller than the width of the seal. A storage device for storing the seal and the connecting component 103 is placed on one side of the delivery mechanism 9 (not shown in the figure). In this embodiment, the delivery clamp 94 and the delivery clamp 95 both use the material picking claws of the existing technology, which is the existing technology and will not be described in detail.

[0048] When the two-way socket joints on both sides are pressed and formed, the outer liner grasping components 4 on both sides drive the two two-way socket joints to separate a certain distance, drive the cylinder four 8 telescopic rod to drive the sealing groove pressing part 7 to retract to the initial position and transmit the signal to the rodless cylinder 91, and the rodless cylinder 91 drives the delivery claw 1 42 and the delivery claw 2 43 on the delivery seat 92 to the storage device to load and take the sealing ring and the connecting component 103 in the storage device respectively and send them between the two two-way socket joints, and then the outer liner grasping components 4 on both sides drive the two two-way socket joints to approach each other, so that the two two-way socket joints are both extended into the connecting component 103, and at the same time the seal is pressed between the two two-way socket joints to realize the assembly of the pipeline.

[0049] In actual use, the control end is configured with a PC and connected to the signals of each electrical component to control the start-up time and signal association of each electrical component. The connection control between each electrical appliance and the PC is an existing technology and will not be described in detail.

[0050] Reference Figure 5In the second aspect, the present application provides a two-way socket joint pipe, which is prepared by using the above-mentioned two-way socket joint pipe manufacturing equipment, including a two-way socket joint body 101, a sealing ring 102 and a connecting assembly 103, wherein the two-way socket joint body 101 is symmetrically provided with two sealing grooves 11 pressed and formed on opposite sides of the two two-way socket joint bodies 101, and the sealing ring 102 is clamped between the two sealing grooves 11, and the connecting assembly 103 includes a sealing ring 2 1031 and a connecting outer sleeve 1032, and the connecting outer sleeve 1032 Sleeved on the outer wall of the joint of the two two-way socket joint bodies 101, the sealing ring 1031 is installed with at least one card set on the inner wall of the connecting outer sleeve 1032. When two sealing rings 1031 are installed, the two sealing rings 1031 correspond to one two-way socket joint setting respectively, and then the two two-way socket joint bodies 101 are tightly connected to form a pipeline by tightening the connecting outer sleeve 1032 and the sealing ring 1031. In this embodiment, the sealing ring 1031 is preferably one, so that the overall assembly and plugging are more convenient and quick.

[0051] The two-way socket joint body 101 includes an inner lining stainless steel pipe 1011, an outer structural pipe 1012 and a hot melt adhesive layer 1013. The outer structural pipe 1012 is sleeved outside the inner lining stainless steel pipe 1011. The outer structural pipe 1012 includes but is not limited to a cast iron pipe or a stainless steel pipe. Both ends of the inner lining stainless steel pipe 1011 are folded outward, and one end folded outward is bent toward each other to form a clamping portion 101A. The outer structural pipe 1012 is clamped in the clamping portions 101A at both ends. The hot melt adhesive layer 1013 is filled between the inner lining stainless steel pipe 1011 and the outer structural pipe 1012. The sealing groove 11 is opened on the outer wall of the outward folded part of the inner lining stainless steel pipe 1011.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A two-way socket joint pipe manufacturing device, comprising: A main body (1), which is the base of the entire device; An inner liner pipe displacement mechanism (2), which is arranged on the main body (1) for adjusting the position of the inner liner pipe and can drive the rotation of the inner liner pipe; A hot melt adhesive coating device (3), which is arranged on one side of the main body (1) for coating hot melt adhesive on the inner liner pipe on the inner liner pipe displacement mechanism (2); An outer liner pipe gripping assembly (4), which is slidably arranged on the main body (1) for positioning and gripping the outer liner pipe and driving the outer liner pipe to slide; A pressing mechanism (5), which is used for pressing and fixing the inner liner pipe and the outer liner pipe. The pressing mechanism (5) includes a lifting seat (51), a lifting power member (52), a flat pressing block (53), a flaring block (54), a pressing and folding ring plate (55), a driving cylinder one (56), a driving cylinder two (57) and a driving cylinder three (58). The lifting seat (51) is arranged on the main body (1) through the lifting power member (52) to be lifted and lowered. The lifting seat (51) is in a "U" shape with an open top. Two flat pressing blocks (53), two flaring blocks (54) and two pressing and folding ring plates (55) are symmetrically arranged. The two flat pressing blocks (53) are respectively slidably arranged in the lifting seat (51) in a direction approaching or departing from each other through the driving cylinder one (56) arranged on the lifting seat (51). The flaring block (54) is in a frustum shape. The two flaring blocks (54) are slidably arranged in the lifting seat (51) in a direction approaching or departing from each other through the driving cylinder two (57) on the inner wall of the lifting seat (51). The flaring block (54) can pass through the flat pressing block (53). The pressing and folding ring plate (55) is concentrically arranged with the flat pressing block and is driven by the driving cylinder three (58) to extend into or out of the flat pressing block; Two groups of the inner liner pipe displacement mechanism (2), the hot melt adhesive coating device (3), the outer liner pipe gripping assembly (4) and the pressing mechanism (5) are symmetrically arranged. A sealing groove pressing member (7) is arranged on the main body (1) between the two groups of the inner liner pipe displacement mechanism (2) to press and form a sealing groove (11) on the end faces of the two relatively arranged outer liner pipes after pressing; On one side of the main body (1), there is also a feeding mechanism (9) for the sealing member and the connecting assembly (103), which is used for connecting and sealing the pressing structures of the two inner liner pipes and the outer liner pipes to form a pipe structure; The bidirectional socket joint pipe prepared by the bidirectional socket joint pipe manufacturing equipment comprises a bidirectional socket joint body (101), a sealing ring 1 (102) and a connecting assembly (103), wherein two bidirectional socket joint bodies (101) are symmetrically arranged, and sealing grooves (11) are arranged on opposite sides of the two bidirectional socket joint bodies (101), and the sealing ring 1 (102) is clamped between the two sealing grooves (11); the connecting assembly (103) comprises a sealing ring 2 (1031) and a connecting outer sleeve (1032), and the connecting outer sleeve (1032) is sleeved on the outer wall of the joint of the two bidirectional socket joint bodies (101), and two sealing rings 2 (1031) are arranged at intervals and are clamped on the inner wall of the connecting outer sleeve (1032), and the two sealing rings 2 (1031) are clamped on the inner wall of the connecting outer sleeve (1032). The second sealing ring (1031) is respectively arranged corresponding to a bidirectional socket joint body (101); the bidirectional socket joint body (101) comprises an inner lining stainless steel pipe (1011), an outer structural pipe (1012) and a hot melt adhesive layer (1013); the outer structural pipe (1012) is sleeved outside the inner lining stainless steel pipe (1011); both ends of the inner lining stainless steel pipe (1011) are folded outwards; one end folded outwards is bent towards each other to form a clamping portion (101A); the outer structural pipe (1012) is clamped in the clamping portions (101A) at both ends; the hot melt adhesive layer (1013) is filled between the inner lining stainless steel pipe (1011) and the outer structural pipe (1012); and the sealing groove (11) is provided on the outer wall of the outward folded portion of the inner lining stainless steel pipe (1011).

2. The bidirectional socket joint pipe manufacturing equipment according to claim 1 is characterized by: The inner liner tube displacement mechanism (2) comprises a first linear module (21), a second linear module (22), a displacement seat (23), an inflatable shaft (24) and a power assembly (25); the first linear module (21) is arranged on the main body (1); the second linear module (22) is arranged on a slider of the first linear module (21); the displacement seat (23) is arranged on a slider of the second linear module (22); the inflatable shaft (24) is driven to rotate on the displacement seat (23) by the power assembly (25); and the inner liner tube can be plugged and fixed to the inflatable shaft (24).

3. The bidirectional socket joint pipe manufacturing equipment according to claim 1 is characterized in that: The outer liner grasping assembly (4) includes a sliding block (41), a clamping jaw 1 (42), a clamping jaw 2 (43) and a driving member (44); the sliding block (41) is driven to slide on the main body (1) by a third linear module (6); the clamping jaw 1 (42) is fixedly connected to the sliding block (41); the clamping jaw 2 (43) is driven to rotate on the sliding block (41) by the driving member (44); the clamping jaw 1 (42) cooperates with the clamping jaw 2 (43) to achieve clamping of the outer liner.

4. The bidirectional socket joint pipe manufacturing equipment according to claim 1 is characterized in that: A rounded chamfer (551) is provided on the inner wall of the side of the compression ring plate (55) facing away from the driving cylinder three (58).

5. The bidirectional socket joint pipe manufacturing equipment according to claim 1 is characterized in that: The sealing groove pressing piece (7) has a hexagonal cross section, and one side of the sealing groove pressing piece (7) facing the end face of the outer liner pipe is provided with two symmetrically arranged inclined surfaces, and the main body (1) is provided with a driving cylinder four (8) for driving the sealing groove pressing piece (7) to rise and fall.

6. The bidirectional socket joint pipe manufacturing equipment according to claim 5, characterized in that: The delivery mechanism (9) comprises a rodless cylinder (91), a delivery seat (92), a reciprocating motor (93), a delivery clamp 1 (94), and a delivery clamp 2 (95); the delivery seat (92) is arranged on the slider of the rodless cylinder (91) to realize reciprocating motion; the rodless cylinder (91) is signal-connected with the driving cylinder 4 (8); the delivery clamp 1 (94) and the delivery clamp 2 (95) are arranged at intervals and are both driven to rotate on the delivery seat (92) by the reciprocating motor (93); a storage device for storing sealing components and connecting components (103) is arranged on one side of the delivery mechanism (9).

7. The bidirectional socket joint pipe manufacturing equipment according to claim 6 is characterized by: The rotation angles of the delivery gripper 1 (94) and the delivery gripper 2 (95) are between 30° and 120°.

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