A liner pipe press-fitting mechanism for non-metallic pipes

Abstract

The present invention relates to the technical field of inner liner pipe press-fitting, and relates to an inner liner pipe press-fitting mechanism for non-metallic pipes. It comprises a mounting frame, a blanking plate is fixedly connected to the lower part of the mounting frame, a fixed rod is fixedly connected inside the mounting frame, the fixed rod is rotatably connected to a cylinder, a first driving member is installed inside the mounting frame, the fixed rod is symmetrically fixed to the fixed frame, the cylinder is circumferentially slidably connected to a sliding frame, a tension spring is fixedly connected between the sliding frame and the inner wall of the cylinder, the sliding frame is fixed to a guide rod that slides with an inclined groove and an arc-shaped slideway, a connecting frame is circumferentially fixed to the outer wall of the cylinder, and the connecting frame is symmetrically rotatably connected to a clamping plate. The present invention pushes the swing plate to swing by squeezing a ball to make the limit plate resist the non-metallic pipe fitting, so that the force of the second driving member pushing the inner liner pipe to move is constant, and the contact block and the spring thereon cooperate to intermittently push the inner liner pipe to move for press-fitting under the action of a constant thrust, so as to avoid deformation of the inner liner pipe due to different thrusts during the press-fitting process, thereby affecting the press-fitting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of inner liner pipe press-fitting, and in particular to an inner liner pipe press-fitting mechanism for non-metallic pipes. Background Art

[0002] Non-metallic pipes have the advantages of corrosion resistance, aging resistance and light weight. They are mostly used for the transportation of liquids or gases. Before using non-metallic pipes, they need to be pressed with inner lining pipes. Since the material of the inner lining pipe is thermoplastic plastic, it has a certain deformation amount. When the inner lining pipe is deformed, its diameter will change, affecting the pressing of the non-metallic pipe.

[0003] When the liner pipe and the non-metallic pipe fittings are connected, the existing equipment directly pushes the liner pipe downward to be pressed together with the non-metallic pipe. During this process, due to the different friction between the liner pipe and the non-metallic pipe fittings, when the friction between the liner pipe and the non-metallic pipe is reduced, the movement speed of the liner pipe will suddenly increase. When the existing equipment contacts the liner pipe again and pushes it to move, the thrust of the liner pipe will change. The change in the thrust of the liner pipe and the friction between it and the non-metallic pipe will cause the liner pipe to deform. Since there is no object to support the inner or outer diameter of the liner pipe during press fitting, direct press fitting will cause the liner pipe to break during the press fitting process. Summary of the invention

[0004] The present invention provides a liner pipe press-fitting mechanism for non-metallic pipes, the purpose of which is to solve the technical problems mentioned in the above background technology.

[0005] A liner pipe pressing mechanism for non-metallic pipes includes a mounting frame, a blanking plate is fixedly connected to the lower part of the mounting frame, a fixing rod is fixedly connected in the mounting frame, the fixing rod is rotatably connected to a cylinder, a first driving member is installed in the mounting frame, the first driving member drives the cylinder to rotate through a pulley and a belt, the fixing rod is symmetrically fixed to the fixing frame, the fixing frame is located in the cylinder, an inclined groove is arranged on the upper part of the fixing frame, the fixing frame is arranged on an arc-shaped slideway connected to the inclined groove, the cylinder is circumferentially slidably connected to a sliding frame, a tension spring is fixedly connected between the sliding frame and the inner wall of the cylinder, the sliding frame is fixedly connected to a guide rod slidably matched with the inclined groove and the arc-shaped slideway, the outer wall of the cylinder is circumferentially fixed to a connecting frame, the connecting frame is symmetrically rotatably connected to a clamping plate, the clamping plate is rotatably connected to an adjacent sliding frame, and the mounting frame A support plate is symmetrically fixed to the top, and a track frame is equidistantly fixed to adjacent support plates in the circumferential direction. The track frame is equidistantly and slidably connected to guide wheels for directional movement of the liner pipe, a spring is fixed between the guide wheel and the track frame, and the mounting frame is provided with a second driving member, and a clamping frame is fixedly connected to the telescopic end of the second driving member, a pushing disk is slidably connected in the clamping frame, and a third driving member for driving the pushing disk to move is installed in the clamping frame, a pushing frame is slidably connected in the clamping frame, an elastic telescopic rod is fixed between the pushing frame and the clamping frame, the clamping frame is circumferentially connected to symmetrically distributed clamping members, a torsion spring is fixed between the clamping members and the clamping frame, a pull rope is wound around the clamping member, and the pull rope is fixed to the adjacent pushing frame, and the guide wheels on the inner and outer sides support the inner and outer walls of the liner pipe and guide it to move.

[0006] Preferably, friction pieces are equidistantly arranged on the outer annular surface of the guide wheel in the circumferential direction to reduce the friction force between the guide wheel and the inner liner pipe.

[0007] Preferably, the clamping frame is circumferentially slidably connected with a contact block, a spring is fixedly connected between the contact block and the clamping frame, and the contact block is located on the inner side of the adjacent clamping piece.

[0008] Preferably, a squeezing ball is fixedly connected to one side of the cylinder away from the pulley and the belt at equal intervals in the circumferential direction, and a mounting frame is fixedly connected to a vertical plate located on the upper side of the squeezing ball. The vertical plate is rotatably connected to a swing plate, and the upper end of the swing plate is rotatably connected to a limit plate slidably connected to the vertical plate. The limit plate is used to position non-metallic pipe fittings.

[0009] Preferably, the inner bottom of the mounting frame is connected to a containing frame located directly below the cylinder through an elastic telescopic rod, a guide frame fixed to the containing frame is slidably connected inside the mounting frame, a pin rod is fixed to the upper end of the guide frame, and the cylinder is provided with a track groove that slidably cooperates with the pin rod.

[0010] Preferably, the track groove is formed by a combination of symmetrically arranged arc grooves and V-shaped grooves, and the symmetrically arranged arc grooves and the symmetrically arranged V-shaped grooves are staggered with each other, and the guide frame cooperates with the track groove to adjust the height of the holding frame.

[0011] Preferably, the symmetrically arranged V-grooves have the same distance from the center line of the cylinder, and the distances from adjacent V-grooves to the center line of the cylinder are different. Different V-grooves cooperate with the pin rods of the guide frame to be used for the clamping plate to clamp the liner pipe and non-metallic pipe respectively.

[0012] Preferably, an inclined plate is fixed in the mounting frame, and the inclined plate is symmetrically rotatably connected to a toggle rod, one end of the toggle rod is fixed to the containing frame through a telescopic rod, and the other end of the toggle rod is fixed to a fixed gear. A limiting frame is rotatably connected in the inclined plate, and the limiting frame is fixed with a transmission gear meshing with the fixed gear, and a gear lever for guiding the liner pipe is symmetrically fixed to the top of the inclined plate.

[0013] Preferably, it also includes an annular frame, which is fixed to a circumferentially arranged track frame, the annular frame is rotatably connected to a ring gear, the ring gear is circumferentially slidably connected to a locking rod, a spring is fixed between the locking rod and the ring gear, a fourth driving member is installed on the top of the annular frame, and the output shaft of the fourth driving member is fixedly connected to a gear for driving the ring gear to rotate.

[0014] Preferably, a cross rod is also included, which is arranged on the containing rack. The cross rod near the inclined plate is rotatably connected to the containing rack, and the cross rod away from the inclined plate is fixedly connected to the containing rack. The cross rod is used to support the liner pipe and non-metallic pipe.

[0015] The beneficial effects of the present invention are:

[0016] The present invention uses a squeezing ball to push the swing plate to swing so that the limit plate presses against the non-metallic pipe fitting. During the movement of the inner liner pipe and the press-fitting of the non-metallic pipe fitting, the second driving member uses the clamping frame to make the force of the contact block pushing the inner liner pipe to move constant. The contact block and the spring thereon cooperate to intermittently push the inner liner pipe to move for press-fitting under the action of a constant thrust, thereby reducing the friction between the inner liner pipe and the non-metallic pipe fitting and avoiding deformation of the inner liner pipe due to different thrust sizes during the press-fitting process, which requires the inner liner pipe to be taken out, replaced, and re-pressed, affecting the press-fitting efficiency.

[0017] The inner liner pipe is guided and supported by the upper and lower adjacent guide wheels, and the contact area with the inner liner pipe is reduced by the friction parts to prevent the inner liner pipe from being supported by only the outer pipe diameter or the inner pipe diameter and deformed when pressed with non-metallic pipe fittings.

[0018] The positioning rod is inserted into the through hole of the non-metallic pipe fitting to complete the positioning of the non-metallic pipe fitting, avoiding direct press-fitting without coincidence of the outer diameter of the liner pipe and the inner diameter of the non-metallic pipe fitting, which may cause damage to the liner pipe and waste of resources.

[0019] The non-metallic pipe fittings or inner liner pipes are supported by a cross rod, so that a gap is left between the non-metallic pipe fittings or inner liner pipes and the containing rack, so that adjacent clamping parts can swing and reset to clamp the non-metallic pipe fittings or inner liner pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the cylinder, the sliding frame and the clamping plate of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the support plate, track frame, guide wheel, second drive member and clamping frame of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of location A of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing frame, the sliding frame, the guide rod, the connecting frame and the clamping plate of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the pushing plate, the third driving member, the pushing frame, the clamping member and the contact block of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the containing frame, the guide frame and the inclined plate of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the tilting plate, the toggle lever, the fixed gear, the limit frame and the gear lever of the present invention.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the annular frame, the gear ring, the locking rod and the fourth driving member of the present invention.

[0030] Fig.11 It is a schematic diagram of the enlarged three-dimensional structure of point B of the present invention.

[0031] Among them: 1-mounting frame, 2-unloading plate, 3-fixed rod, 4-cylinder, 5-first driving member, 6-fixed frame, 601-slanted groove, 602-arc slide, 7-sliding frame, 8-guide rod, 9-connecting frame, 10-clamping plate, 11-support plate, 12-track frame, 13-guide wheel, 14-second driving member, 15-clamping frame, 16-pushing plate, 17-third driving member, 18-pushing frame, 19-clamping member, 20-contact block, 21-squeezing ball, 22-vertical plate, 23-swinging plate, 24-limiting plate, 25-holding frame, 26-guide frame, 27-track groove, 28-inclined plate, 29-sliding rod, 30-fixed gear, 31-limiting frame, 32-transmission gear, 33-shift lever, 34-annular frame, 35-gear ring, 36-positioning rod, 37-fourth driving member, 38-cross rod. DETAILED DESCRIPTION

[0032] The technical solution is further described below in conjunction with specific embodiments.

[0033] Example 1

[0034] A non-metallic pipe liner press-fitting mechanism, such as Figure 1-Figure 9As shown, it includes a mounting frame 1, a blanking plate 2 is fixedly connected to the lower part of the mounting frame 1, a fixed rod 3 is fixedly connected to the upper part of the mounting frame 1, the blanking plate 2 is located at the front side of the fixed rod 3, the fixed rod 3 is rotatably connected to the cylinder 4, a first driving member 5 is installed in the mounting frame 1, the first driving member 5 is a reduction motor, the first driving member 5 is located at the lower left side of the cylinder 4, and the first driving member 5 drives the cylinder 4 to rotate through a pulley and a belt, two fixed frames 6 are fixedly connected to the front part of the fixed rod 3, the two fixed frames 6 are symmetrically distributed on the left and right, the fixed frames 6 are located in the cylinder 4, an inclined groove 601 is arranged on the upper part of the fixed frame 6, the fixed frame 6 is provided with an arc slideway 602 connected with the inclined groove 601, the cylinder 4 is circumferentially slidably connected with four groups of sliding frames 7, each group of sliding frames 7 is provided with two and symmetrically distributed on the left and right, A tension spring is fixedly connected between the movable frame 7 and the inner wall of the cylinder 4, and the sliding frame 7 is fixedly connected to a guide rod 8 that slides with the inclined groove 601 and the arc slide 602. Four groups of connecting frames 9 are fixedly connected to the outer wall of the cylinder 4, and each group of connecting frames 9 is provided with two and symmetrically distributed on the left and right. The connecting frame 9 is rotatably connected to two clamping plates 10, and the clamping plates 10 are rotatably connected to the adjacent sliding frames 7. The guide rod 8 moves circumferentially and cooperates with the fixed frame 6 to make the sliding frame 7 approach the center line of the cylinder 4, and the tension spring between the sliding frame 7 and the cylinder 4 is stretched accordingly. The sliding frame 7 moves to make the two clamping plates 10 swing open, so that the two clamping plates 10 pass through the gap between the cylinder 4 and the blanking plate 2. After the guide rod 8 moves circumferentially away from the fixed frame 6, the sliding frame 7 is reset under the action of the tension spring thereon and passes through the two clamping plates. The tightening plate 10 clamps the inner liner pipe or non-metallic pipe fitting, and two support plates 11 are fixedly connected to the top of the mounting frame 1. The support plate 11 is located on the left side of the cylinder 4. Four circumferentially equidistantly distributed track frames 12 are fixedly connected to the inner sides of adjacent support plates 11. The track frames 12 are equidistantly and slidably connected with guide wheels 13 for directional movement of the inner liner pipe. A spring is fixedly connected between the guide wheel 13 and the track frame 12. Friction members are equidistantly arranged on the outer annular surface of the guide wheel 13 in the circumferential direction to reduce the friction force between the inner liner pipe and the inner liner pipe. The upper and lower adjacent guide wheels 13 guide the movement of the inner liner pipe and support the inner and outer walls of the inner liner pipe at the same time to avoid deformation of the inner liner pipe and failure of pressing when the non-metallic pipe fitting is pressed. A second driving member 14 is provided on the left part of the mounting frame 1 through bolts. The second driving member 14 is a hydraulic push rod The telescopic end of the second driving member 14 is fixedly connected to a clamping frame 15, and a pushing plate 16 is slidably connected in the clamping frame 15. A third driving member 17 for driving the pushing plate 16 to move is installed in the clamping frame 15. The third driving member 17 is an electric push rod. A pushing frame 18 is circumferentially slidably connected in the clamping frame 15 through an elastic telescopic rod. A spring is fixedly connected between the pushing frame 18 and the clamping frame 15. A clamping member 19 is circumferentially symmetrically rotatably connected to the clamping frame 15. A torsion spring is fixedly connected between the clamping member 19 and the clamping frame 15. A pull rope is wound around the clamping member 19, and the pull rope is fixedly connected to the adjacent pushing frame 18. The third driving member 17 enables the pushing plate 16 to drive the pushing frame 18 to move. The movement of the pushing frame 18 causes the clamping member 19 to swing through the pull rope. After the clamping member 19 swings, the inner liner pipe is clamped and fixed.

[0035] like Figure 7 As shown, the clamping frame 15 is slidably connected to the contact block 20, a spring is fixed between the contact block 20 and the clamping frame 15, and the clamping frame 15 is located on the inner side of the symmetrically arranged clamping member 19, the contact block 20 moves to cooperate with the spring thereon, so that the thrust of the liner tube during the press-fitting process is always in a constant state, and the contact block 20 and the spring thereon cooperate to intermittently push the liner tube to move for press-fitting under the action of a constant thrust.

[0036] like Figure 3 As shown, two squeezing balls 21 distributed opposite to each other are fixedly connected to the right wall of the cylinder 4, a vertical plate 22 is fixedly connected to the top of the mounting frame 1, the vertical plate 22 is located on the right side of the supporting plate 11, the vertical plate 22 is rotatably connected to a swing plate 23, the upper end of the swing plate 23 is rotatably connected to a limit plate 24 slidably connected to the vertical plate 22, the squeezing balls 21 squeeze the vertical plate 22 to swing, and the vertical plate 22 swings to make the limit plate 24 press against the non-metallic pipe fitting.

[0037] like Figure 2 , Figure 8 and Fig. 9 As shown, the bottom of the mounting frame 1 is connected to a containing frame 25 through an elastic telescopic rod, and the containing frame 25 is located directly below the cylinder 4. A guide frame 26 fixedly connected to the containing frame 25 is slidably connected inside the mounting frame 1, and a pin rod is fixedly connected to the upper end of the guide frame 26. The cylinder 4 is provided with a track groove 27 slidably matched with the pin rod. The track groove 27 is formed by a combination of an arc groove and a V-shaped groove. The V-shaped grooves arranged oppositely are the same, and the heights of adjacent V-shaped grooves are different. The guide frame 26 cooperates with the track groove 27 to adjust the height of the containing frame 25. The higher V-shaped groove corresponds to the non-metallic pipe fittings (because the diameter of the non-metallic pipe fittings is larger than the diameter of the inner liner pipe), and the lower V-shaped groove corresponds to the inner liner pipe.

[0038] like Figure 8 and Fig. 9 As shown, an inclined plate 28 is fixedly connected inside the mounting frame 1, and the inclined plate 28 is located at the rear side of the containing frame 25. The inclined plate 28 is rotatably connected to a toggle rod 29, and the front end of the toggle rod 29 is fixedly connected to the containing frame 25 through a telescopic rod, and the rear end of the toggle rod 29 is fixedly connected to a fixed gear 30. A limit frame 31 is rotatably connected inside the inclined plate 28, and the limit frame 31 is fixedly connected to a transmission gear 32 meshing with the fixed gear 30, and a gear lever 33 for guiding is symmetrically fixedly connected to the top of the inclined plate 28.

[0039] When installing the liner pipe on the non-metallic pipe, the user places the liner pipe and the non-metallic pipe on the upper side of the inclined plate 28 in sequence from front to back. Since the inclined plate 28 is set to be low in the front and high in the back, the non-metallic pipe and the liner pipe on the rear side are limited by the limit frame 31. The user starts the first driving member 5 and drives the cylinder 4 to rotate counterclockwise through the pulley and the belt. The rotation of the cylinder 4 drives the sliding frame 7, the guide rod 8, the connecting frame 9 and the clamping plate 10 to move circumferentially. At this time, the pin rod of the guide frame 26 transitions from the V-shaped groove of the track groove 27 to the process of cooperating with the arc groove (at this time, the V-shaped groove is closest to the cylinder 4 and cooperates with the pin rod). The guide frame 26 drives the containing frame 25 to move downward. The movement of the containing frame 25 causes the front part of the toggle rod 29 to swing downward, and the rear part of the toggle rod 29 drives the fixed gear 30 to swing upward. The fixed gear 30 moves to The upward swing causes the transmission gear 32 to rotate clockwise (this rotation direction is based on the right view), and the fixed gear 30 rotates to cause the limit frame 31 to rotate, releasing the limit on the inner liner tube, and the inner liner tube at the front side of the inclined plate 28 moves between the two limit frames 31. During the process, the pin rod of the guide frame 26 transitions from the arc groove of the track groove 27 to the V-shaped groove, and the guide frame 26 drives the receiving frame 25 to move upward. Similarly, the transmission gear 32 rotates counterclockwise (this rotation direction is based on the right view), and the limit frame 31 rotates to release the limit on the inner liner tube therein, and limits the non-metallic pipe fittings at the front side of the inclined plate 28. The inner liner tube on the limit frame 31 slides forward into the receiving frame 25, and the cylinder 4 rotates to cause the receiving frame 25 to move back and forth downward and upward, so that the inner liner tube and non-metallic pipe on the inclined plate 28 move forward in sequence.

[0040] During the rotation of the cylinder 4, the guide rod 8 moves circumferentially to cooperate with the inclined groove 601 and continues to move circumferentially. During this process, the guide rod 8, under the action of the inclined groove 601, makes the sliding frame 7 approach the center line of the cylinder 4, and the tension spring of the sliding frame 7 is stretched accordingly. The sliding frame 7 moves and drives the two clamping plates 10 connected thereto to swing outward. After the two clamping plates 10 swing outward and unfold, the distance between the clamping plates 10 and the cylinder 4 is shortened, which makes it easier for the clamping plates 10 to pass through the gap between the blanking plate 2 and the cylinder 4. When the guide rod 8 moves circumferentially to cooperate with the arc slideway 602, the sliding frame 7 no longer moves toward the cylinder The center line of the cylinder 4 is close, and when the sliding frame 7 rotates to just above the receiving frame 25, the guide rod 8 moves out of the arc slide 602, and the sliding frame 7 is reset under the action of the tension spring thereon, so that the adjacent clamping plate 10 swings back to clamp the inner liner tube, and the sliding frame 7 rotates to just above the receiving frame 25. At the same time, the pin rod of the guide frame 26 cooperates with the arc groove of the track groove 27, and the cylinder 4 rotates to make the inner liner tube move circumferentially. After the inner liner tube moves circumferentially away from the receiving frame 25, the pin rod of the guide frame 26 moves out of the arc groove and cooperates with the V-shaped groove, and the non-metallic pipe fitting on the front side of the inclined plate 28 slides into the receiving frame 25.

[0041] When the cylinder 4 rotates to make the liner tube move circumferentially to the right of the clamping frame 15, the user closes the first driving member 5 and starts the second driving member 14 to move the clamping frame 15 to the right. When the clamping frame 15 contacts the left wall of the liner tube, the wall of the liner tube is located on the inner side of the adjacent clamping member 19. The user starts the third driving member 17 to move the pushing frame 18 to the left through the pushing disk 16. The elastic telescopic rod of the pushing frame 18 is compressed accordingly. The pushing frame 18 moves and the clamping member 19 is swung and unfolded to clamp the wall of the liner tube through the pull rope. The torsion spring of the clamping member 19 accumulates force accordingly to clamp and fix the liner tube. The personnel starts the second driving member 14 to reset and close the clamping frame 15, and the liner tube moves to the left accordingly. The user starts the third driving member 17 to reset the push plate 16, and the clamping member 19 is reset under the action of the torsion spring thereon, and the limit on the liner tube is released. The upper and lower adjacent guide wheels 13 guide the movement of the liner tube and support the inner and outer walls of the liner tube at the same time to prevent the liner tube from being supported by only the outer diameter or the inner diameter, and deformation during press-fitting with non-metallic pipe fittings. The guide wheel 13 contacts the liner tube through the friction member thereon, thereby reducing the contact area with the liner tube, thereby reducing the friction force on the liner tube.

[0042] The user starts the first driving member 5. When the non-metallic pipe fitting moves circumferentially to the right of the clamping member 19, the user closes the first driving member 5. At this time, the squeezing ball 21 has completed pushing the lower part of the swing plate 23 to swing to the right. The upper part of the swing plate 23 drives the limit plate 24 to swing to the left to resist the non-metallic pipe fitting. The user starts the second driving member 14 to move the clamping frame 15 to the right. The clamping frame 15 moves to the right and pushes the liner to the right through the contact block 20. When the liner contacts the non-metallic pipe fitting, the clamping frame 15 continues to move. During this process, the spring of the contact block 20 is compressed. The contact block 20 pushes the liner to the right under the action of the spring on it, so that the liner contacts the non-metallic pipe fitting. The friction between the metal pipe fittings is reduced, and the second driving member 14 makes the force of the contact block 20 pushing the inner liner tube to move constant through the clamping frame 15. The contact block 20 and the spring thereon cooperate to intermittently push the inner liner tube to move for press-fitting under the action of a constant thrust, thereby reducing the friction between the inner liner tube and the non-metallic pipe fittings and facilitating the installation of the inner liner tube. The first driving member 5 makes the speed of the inner liner tube constant during the press-fitting process, avoiding the phenomenon of suddenly accelerating the press-fitting speed of the inner liner tube, resulting in different thrusts applied to the inner liner tube during the press-fitting process, causing the inner liner tube to deform and need to be taken out and replaced for press-fitting, affecting the press-fitting efficiency of the inner liner tube and the non-metallic pipe fittings.

[0043] Example 2

[0044] On the basis of Example 1, Fig.10As shown, it also includes an annular frame 34, which is fixed to the right ends of the four track frames 12. The annular frame 34 is rotatably connected to the ring gear 35. The right side wall of the ring gear 35 is slidably connected to four circumferentially equidistantly distributed locking rods 36. The locking rods 36 and the ring gear 35 are fixed with springs. A fourth driving member 37 is installed on the top of the annular frame 34, and the output shaft of the fourth driving member 37 is fixedly connected to a gear for driving the ring gear 35 to rotate.

[0045] The non-metallic pipe fitting moves circumferentially and contacts the positioning rod 36. The non-metallic pipe fitting continues to move circumferentially. The non-plastic-impregnated pipe fitting pushes the positioning rod 36 into the gear ring 35. The spring of the positioning rod 36 is compressed accordingly. When the non-metallic pipe fitting moves to the right side of the clamping frame 15, the user starts the fourth driving member 37 to rotate the gear ring 35 through the pinion. When the gear ring 35 rotates to make the positioning rod 36 coincide with the through hole of the non-metallic pipe fitting, the positioning rod 36 is clamped into the through hole of the non-metallic pipe fitting under the action of the spring thereon, completing the centering work of the non-metallic pipe fitting. The inner liner tube and the non-metallic pipe fitting are in a concentric state, so it is convenient for the inner liner tube to move to the right for press-fitting with the non-metallic pipe fitting, avoiding the inner liner tube and the non-metallic pipe fitting being non-concentric. When the inner liner tube and the non-metallic pipe fitting are directly pushed for press-fitting, the inner liner tube and the non-metallic pipe material collide, causing damage to the inner liner tube. After the non-metallic pipe fitting is processed, the user moves the non-metallic pipe fitting circumferentially, and the non-metallic pipe fitting circumferentially squeezes the positioning rod 36 into the gear ring 35. After the non-metallic pipe fitting is away from the positioning rod 36, the positioning rod 36 is reset under the action of the spring thereon.

[0046] like Fig.11 As shown, two groups of cross bars 38 are also included. The two groups of cross bars 38 are respectively arranged on the receiving rack 25. The two groups of cross bars 38 are symmetrical front and back, and each group of cross bars 38 is respectively provided with three. The cross bars 38 on the rear side are rotatably connected to the receiving rack 25, and the cross bars 38 on the front side are fixedly connected to the receiving rack 25. When the non-metallic pipe fittings or liner tubes slide forward, the cross bars 38 on the rear side will be pushed to rotate forward, and the cross bars 38 on the front side limit the non-metallic pipe fittings or liner tubes. The non-metallic pipe fittings or liner tubes are supported by the cross bars 38 on the front and rear sides. At this time, a gap is left between the non-metallic pipe fittings or liner tubes and the receiving rack 25, so that the adjacent clamping members 19 can be swung back to clamp the non-metallic pipe fittings or liner tubes.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A non-metallic pipe liner press-fitting mechanism, characterized in that: The present invention relates to a mounting frame, wherein a blanking plate is fixedly connected to the lower part of the mounting frame, a fixing rod is fixedly connected inside the mounting frame, the fixing rod is rotatably connected to a cylinder, a first driving member is installed inside the mounting frame, the first driving member drives the cylinder to rotate through a pulley and a belt, the fixing rod is symmetrically fixed to the fixing frame, the fixing frame is located in the cylinder, an inclined groove is arranged on the upper part of the fixing frame, the fixing frame is provided with an arc-shaped slideway connected with the inclined groove, the cylinder is circumferentially slidably connected to a sliding frame, a tension spring is fixedly connected between the sliding frame and the inner wall of the cylinder, the sliding frame is fixedly connected to a guide rod slidably matched with the inclined groove and the arc-shaped slideway, the outer wall of the cylinder is circumferentially fixed to a connecting frame, the connecting frame is symmetrically rotatably connected to a clamping plate, the clamping plate is rotatably connected to an adjacent sliding frame, and the top of the mounting frame is symmetrically fixed to A support plate is provided, adjacent support plates are fixedly connected with track frames at equal intervals in the circumferential direction, the track frames are slidably connected with guide wheels for directional movement of the inner liner pipe at equal intervals, a spring is fixedly connected between the guide wheel and the track frame, the mounting frame is provided with a second driving member, the telescopic end of the second driving member is fixedly connected with a clamping frame, a pushing disk is slidably connected in the clamping frame, a third driving member for driving the pushing disk to move is installed in the clamping frame, a pushing frame is slidably connected in the clamping frame, an elastic telescopic rod is fixedly connected between the pushing frame and the clamping frame, the clamping frame is rotatably connected with symmetrically distributed clamping members, a torsion spring is fixedly connected between the clamping member and the clamping frame, a pull rope is wound around the clamping member, the pull rope is fixedly connected to the adjacent pushing frame, and the guide wheels on the inner and outer sides support the inner and outer walls of the inner liner pipe and guide it to move; A squeezing ball is fixedly connected to one side of the cylinder away from the pulley and the belt at equal intervals in the circumference, and a mounting frame is fixedly connected to a vertical plate located on the upper side of the squeezing ball. The vertical plate is rotatably connected to a swing plate, and the upper end of the swing plate is rotatably connected to a limit plate slidably connected to the vertical plate. The limit plate is used to position non-metallic pipe fittings.

2. The non-metallic pipe liner press-fitting mechanism according to claim 1 is characterized in that: The outer annular surface of the guide wheel (13) is provided with friction pieces at equal intervals in the circumferential direction, so as to reduce the friction force between the guide wheel and the inner liner pipe.

3. The inner liner pipe press-fitting mechanism of a non-metallic pipe according to claim 1 is characterized in that: The clamping frame (15) is circumferentially slidably connected with a contact block (20), a spring is fixedly connected between the contact block (20) and the clamping frame (15), and the contact block (20) is located on the inner side of an adjacent clamping piece (19).

4. The inner liner pipe press-fitting mechanism of a non-metallic pipe according to claim 1 is characterized in that: The inner bottom of the mounting frame (1) is connected to a containing frame (25) located directly below the cylinder (4) via an elastic telescopic rod, a guide frame (26) fixedly connected to the containing frame (25) is slidably connected inside the mounting frame (1), a pin rod is fixedly connected to the upper end of the guide frame (26), and the cylinder (4) is provided with a track groove (27) slidably matched with the pin rod.

5. The inner liner pipe press-fitting mechanism of a non-metallic pipe according to claim 4 is characterized in that: The track groove (27) is formed by a combination of symmetrically arranged arc grooves and V-shaped grooves, and the symmetrically arranged arc grooves and the symmetrically arranged V-shaped grooves are interlaced with each other. The guide frame (26) cooperates with the track groove (27) to adjust the height of the containing frame (25).

6. The inner liner pipe press-fitting mechanism of a non-metallic pipe according to claim 5 is characterized in that: The symmetrically arranged V-shaped grooves have the same distance from the center line of the cylinder (4), and the distances from adjacent V-shaped grooves to the center line of the cylinder are different. Different V-shaped grooves cooperate with the pins of the guide frame (26) to be used for the clamping plate (10) to clamp the liner pipe and the non-metallic pipe respectively.

7. The inner liner pipe press-fitting mechanism of a non-metallic pipe according to claim 4 is characterized in that: An inclined plate (28) is fixedly connected inside the mounting frame (1), and the inclined plate (28) is symmetrically rotatably connected to a toggle rod (29), one end of the toggle rod (29) is fixedly connected to the containing frame (25) through a telescopic rod, and the other end of the toggle rod (29) is fixedly connected to a fixed gear (30), and a limit frame (31) is rotatably connected inside the inclined plate (28), and the limit frame (31) is fixedly connected to a transmission gear (32) meshing with the fixed gear (30), and a gear lever (33) for guiding the inner liner pipe is symmetrically fixedly connected to the top of the inclined plate (28).

8. The non-metallic pipe liner press-fitting mechanism according to claim 1 is characterized in that: The invention also comprises an annular frame (34), the annular frame (34) is fixedly connected to a track frame (12) arranged in a circumferential direction, the annular frame (34) is rotatably connected to a ring gear (35), the ring gear (35) is circumferentially slidably connected to a positioning rod (36), a spring is fixedly connected between the positioning rod (36) and the ring gear (35), a fourth driving member (37) is installed on the top of the annular frame (34), and an output shaft of the fourth driving member (37) is fixedly connected to a gear for driving the ring gear (35) to rotate.

9. The non-metallic pipe liner press-fitting mechanism according to claim 5, characterized in that: It also includes a cross rod (38), which is arranged on the receiving frame (25). The cross rod (38) on the side close to the inclined plate (28) is rotatably connected to the receiving frame (25), and the cross rod (38) on the side away from the inclined plate (28) is fixedly connected to the receiving frame (25). The cross rod (38) is used to support the liner pipe and the non-metallic pipe.

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