Composite pipe sealing ring connecting device

Abstract

The utility model provides a composite pipe sealing ring connecting device which comprises a fixing ring, a composite pipe can stretch into the fixing ring, and the fixing ring can tightly hold the outer wall of the composite pipe. The heating plate can rotate around one side of the heating plate, and when the heating plate rotates to a first limit position, the heating plate can be attached to the end of the composite pipe; the sealing ring positioning unit comprises a positioning plate opposite to the heating plate, two supporting edges are arranged at the bottom of the positioning plate and arranged in a V shape, and a pressing block is arranged on the upper portion of the positioning plate and can move in the vertical direction; and the heating plate is arranged between the fixing ring and the sealing ring positioning unit. The sealing ring is fixed through the two supporting edges and the pressing block, the sealing ring and the end face of the composite pipe can make contact with the heating plate at the same time through the positioning plate capable of pushing the heating plate, the sealing ring and the end face of the composite pipe are fused, and meanwhile when the heating plate rotates upwards to the limiting position, the positioning plate can push the sealing ring to make contact with the composite pipe, and the sealing ring is sealed. And connection of the sealing ring and the composite pipe is completed.

Description

Technical Field

[0001] The utility model belongs to the field of composite pipe processing, and particularly relates to a connecting device for a composite pipe sealing ring. Background Technique

[0002] During the production process of composite pipes, a steel wire mesh is arranged inside the pipe wall to improve the strength and toughness of the composite pipes. Moreover, the composite pipes are produced continuously. At the end of the production line, the continuously produced composite pipes are cut into predetermined sizes by a cutting machine. However, on the cut end face of the composite pipe, the end faces of the steel wires of the steel wire mesh inside the pipe wall of the composite pipe are exposed to the air. If not processed, during storage and use, the steel wires are easily invaded by water vapor, resulting in rusting of the steel wires, which in turn affects the quality of the composite pipes. In the prior art, the end face of the composite pipe is processed by a sealing ring. The operator first heats the sealing ring and the end face of the composite pipe to make the sealing ring and the end face of the composite pipe in a molten state, and then bonds the sealing ring and the composite pipe to protect the end face of the steel wire mesh. After the end face material cools down, the excess part of the sealing ring is removed by a grinding device. However, in the prior art, after the end face of the sealing ring contacts the heating plate and melts, it will stick to the heating plate, and the operator needs to manually remove the sealing ring, and then align it with the end face of the composite pipe and apply force to bond it. In this way, not only is the production efficiency low, but also during the process of the operator removing the sealing ring, although protected by gloves, first, the gloves are easily damaged in a high-temperature environment, and second, the unprotected limbs of the operator (such as the arms) are still very likely to contact the heating plate or the molten PE material, causing burns and posing a problem to production safety. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a connecting device for a composite pipe sealing ring to protect the personal safety of the operator and complete the connection between the sealing ring and the composite pipe.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A connecting device for a composite pipe sealing ring, comprising

[0006] A fixing ring, the composite pipe can extend into the fixing ring, and the fixing ring can tightly hold the outer wall of the composite pipe;

[0007] A heating plate, a rotating shaft is arranged on the side of the heating plate, the heating plate can rotate around the rotating shaft, and when the heating plate rotates to the first limit position, the heating plate can be attached to the end of the composite pipe;

[0008] Sealing ring positioning unit, which includes a positioning plate arranged opposite to the heating plate. There are two support ridges at the bottom of the positioning plate, and the two support ridges are arranged in a V shape. There is a pressing block on the upper part of the positioning plate. The pressing block can move in the vertical direction. The pressing block and the two support ridges enclose a fixing space for the sealing ring.

[0009] The heating plate is placed between the fixing ring and the sealing ring positioning unit, and the positioning plate can push the heating plate to move towards the fixing ring.

[0010] Further, the fixing ring includes a fixed tile and a movable tile. The fixed tile is fixedly arranged below the composite pipe. One end of the movable tile and the fixed tile are hinged to each other, and the other ends are respectively provided with notches. A locking rod is rotatably connected in one of the notches. When the locking rod rotates to the limit position, its end can be inserted into the other notch. A nut is screwed on the locking rod, and the nut can tightly abut against the end face of the other notch.

[0011] Further, rubber pads are respectively fixedly arranged on the inner sides of the fixed tile and the movable tile.

[0012] Further, a sliding rod is arranged on one side of the heating plate. There is a slider on the sliding rod. The rotating shaft of the heating plate is connected to the slider. The heating plate can move along the axial direction of the sliding rod, so that the heating plate can approach or move away from the fixing ring.

[0013] Further, a spring is sleeved on the sliding rod, and the spring is placed between the slider and the fixing ring. One end of the spring can tightly abut against the slider, and when the slider moves towards the fixing ring, the spring undergoes elastic deformation.

[0014] Further, a guiding groove is opened on the plate surface of the positioning plate. The pressing block includes a guiding part and a pressing column. The guiding part is placed in the guiding groove. The pressing column is fixedly arranged on the guiding part and protrudes from the positioning plate.

[0015] Further, a guiding hole is opened at the bottom of the guiding groove. A connecting column is also fixedly arranged on the guiding part. The connecting column passes through the guiding hole, and a nut is screwed with the connecting column.

[0016] Further, a threaded hole is opened at one end of the guiding hole. A bolt is screwed with the threaded hole, and the bottom end of the bolt tightly abuts against the connecting column.

[0017] Further, the positioning plate is fixedly connected to the piston cylinder of a cylinder.

[0018] Further, the thicknesses of the pressing block and the support ridges are smaller than the thickness of the sealing ring.

[0019] Compared with the prior art, the composite pipe sealing ring connection device of the present utility model has the following advantages:

[0020] The utility model fixes the sealing ring by using two supporting edges and a pressing block. Through the positioning plate that can push the heating plate, the sealing ring and the end face of the composite pipe can be in contact with the heating plate at the same time, so that the sealing ring and the end face of the composite pipe are melted. At the same time, when the heating plate rotates upward to the limit position, the positioning plate can push the sealing ring to contact the composite pipe, completing the connection between the sealing ring and the composite pipe;

[0021] The cooperation of a spring and a slider is adopted, so that after the thrust of the positioning plate is lost, the heating plate can automatically move away from the composite pipe, facilitating the operator to lift the heating plate upward;

[0022] A bolt is used to press against the pressing block, so that the positioning plate can clamp and fix the sealing ring. At the same time, after the bonding of the sealing ring is completed, the bolt is loosened so that the sealing ring can be quickly separated from the positioning plate, avoiding the operator from contacting the heated sealing ring and preventing burns. Description of the Drawings

[0023] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0024] Figure 1 It is a schematic diagram of the cooperation between the connecting device and the composite pipe;

[0025] Figure 2 It is a schematic diagram of the structure of the connecting device;

[0026] Figure 3 It is a schematic diagram of the structure of the fixing ring;

[0027] Figure 4 It is a schematic diagram of the structure of the sealing ring positioning unit;

[0028] Figure 5 It is a schematic diagram of the structure at the cooperation between the positioning plate and the pressing block;

[0029] Figure 6 It is a schematic diagram of the structure of the pressing block.

[0030] Description of the Reference Numerals:

[0031] 1 - Fixing ring; 11 - Fixed tile; 111 - Notch; 12 - Movable tile; 121 - Locking rod; 13 - Rubber pad; 2 - Heating plate; 21 - Slide bar; 22 - Spring; 23 - Slide block; 24 - Beam frame; 31 - Positioning plate; 311 - Supporting edge; 312 - Guide groove; 313 - Guide hole; 3 - Sealing ring positioning unit; 32 - Cylinder; 33 - Pressing block; 331 - Guide part; 332 - Connecting column; 333 - Pressing column; 334 - Bolt; 4 - Composite pipe; 5 - Sealing ring; 6 - Roller path. Detailed Embodiments

[0032] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0035] The following will describe the present utility model in detail with reference to the drawings and in conjunction with the embodiments.

[0036] The connecting device for the sealing ring 5 of the composite pipe 4 according to the present utility model includes

[0037] The fixing ring 1 for fixing the composite pipe 4, the fixing ring 1 includes an arc-shaped fixing tile 11 and a movable tile 12, the fixing tile 11 is fixed below the composite pipe 4, one end of the movable tile 12 and the fixing tile 11 are hinged to each other, and the other ends are respectively provided with notches 111. A locking rod 121 is rotatably connected in one of the notches 111. When the locking rod 121 rotates to the limit position, its end can be inserted into the other notch 111. A nut is screwed on the locking rod 121, and the nut can tightly abut against the end face of the other notch 111. In this embodiment, the locking rod 121 is rotatably connected to the movable tile 12. When the movable tile 12 rotates to the limit position, the end of the movable tile 12 can be placed on the fixing tile 11. The locking rod 121 passes through the notch 111 of the fixing tile 11 and is locked by a nut. In a further improvement, the end of the fixing tile 11 is chamfered to facilitate the loosening or clamping of the nut and the locking rod 121 with the fixing tile 11. During work, the composite pipe 4 extends above the fixing tile 11, and then the movable tile 12 is rotated to lock the composite pipe 4. In order to increase the friction between the fixing ring 1 and the composite pipe 4 and at the same time protect the composite pipe 4, rubber pads 13 are respectively provided on the inner sides of the fixing tile 11 and the movable tile 12;

[0038] The heating plate 2 is provided with slide bars 21 on its side. In this embodiment, there are two slide bars 21. A slider 23 is slidably connected to the two slide bars 21, and a rotating shaft is provided on one side of the slider 23. An arc-shaped beam frame 24 is rotatably connected to the rotating shaft. The heating plate 2 is fixed on the arc-shaped beam frame 24. When the heating plate 2 rotates downward to the limit position, the heating plate 2 can be opposite to the end face of the composite pipe 4. When the heating plate 2 is subjected to an external force along the axial direction of the slide bar 21, the heating plate 2 can be attached to the end face of the composite pipe 4. After being powered on, the heating plate 2 heats the composite pipe 4, so that the PE material at the end of the composite pipe 4 is in a molten state. Those skilled in the art should know that in order to fix the heating plate 2 so that the heating plate 2 can maintain a fixed posture when rotating to the limit position, a limit block can be provided at the limit position where the beam frame 24 moves to support the beam frame 24, or the rotation angle of the beam frame 24 can be limited by a special-shaped rotating shaft;

[0039] The sealing ring 5 positioning unit 3 includes a positioning plate 31 disposed opposite to the heating plate 2. Two support ribs 311 are provided at the bottom of the positioning plate 31, and the two support ribs 311 are arranged in a V shape. A pressing block 33 is provided on the upper part of the positioning plate 31. The pressing block 33 can move in the vertical direction. A fixing space for the sealing ring 5 is formed by surrounding the pressing block 33 and the two support ribs 311. More specifically, a guiding groove 312 is formed at the top of the plate surface of the positioning plate. A guiding hole 313 penetrating the positioning plate 31 is formed at the bottom of the guiding groove 312. The pressing block 33 includes a guiding portion 331, a connecting column 332, and a pressing column 333. The guiding portion 331 is placed in the guiding groove 312. The connecting column 332 passes through the positioning plate 31 through the guiding hole 313. A nut is screwed on the outer end of the connecting column 332, and the effective length of the connecting column 332 is limited by the nut and the guiding portion 331 to prevent the guiding plate from approaching or departing from the positioning plate 31. The pressing column 333 is fixedly provided on the guiding portion 331 and protrudes from the positioning plate 31. In this embodiment, there are two pressing columns 333. In another embodiment (not shown in the figure), a metal ring can also be sleeved on the connecting column 332. A spring 22 is provided between the metal ring and the nut. The metal ring is pressed by the spring 22, so that the guiding portion 331 and the metal ring clamp the positioning plate 31 in the middle, facilitating the sliding of the connecting column 332 and the guiding portion 331 in the guiding hole 313 and the guiding groove 312. A threaded hole is formed at one end of the guiding hole 313. A bolt 334 is screwed with the threaded hole, and the bottom end of the bolt 334 abuts against the connecting column 332. The pressing block 33 is abutted by the bolt 334. During operation, the sealing ring 5 is placed on the two support ribs 311. The bolt 334 is rotated to lower the pressing block 33, and the sealing ring 5 is fixed in the fixing space for the sealing ring 5 surrounded by the pressing block 33 and the two support ribs. The thicknesses of the pressing block 33 and the support ribs 311 are smaller than the thickness of the sealing ring 5. A cylinder 32 is fixedly provided on the side of the positioning plate 31 away from the heating plate 2. The positioning plate 31 is fixedly connected to the piston rod of the cylinder 32. The positioning plate 31 is pushed towards the heating plate 2 by the cylinder 32, so that the end face of the sealing ring 5 contacts the heating plate 2.

[0040] A spring 22 is sleeved on the sliding rod 21, and the spring 22 is placed between the slider 23 and the fixed ring 1. One end of the spring 22 can tightly abut against the slider 23, and when the slider 23 moves towards the fixed ring 1, the spring 22 undergoes elastic deformation.

[0041] For the connecting device of the sealing ring 5 of the composite pipe 4 described in the present utility model, during operation, the end of the composite pipe 4 is fixed by the fixing ring 1. The sealing ring 5 is placed on the two supporting edges 311, and the sealing ring 5 is pressed by the pressing block 33. The beam frame 24 is pulled to make the heating plate 2 rotate to the lower limit position. Then the air cylinder 32 is started to push the positioning plate 31 to move towards the heating plate 2. After the sealing ring 5 contacts the heating plate 2, the air cylinder 32 continues to move until the heating plate 2 contacts the composite pipe 4. After a preset time, the heating plate 2 completes heating of the composite pipe 4 and the sealing ring 5. The piston rod of the air cylinder 32 retracts, and the heating plate 2 resets under the action of the spring 22. Under the action of the pressing block 33, the sealing ring 5 moves synchronously with the positioning plate 31. Then the heating plate 2 is lifted, and the piston rod of the air cylinder 32 extends again to make the sealing ring 5 tightly abut against the end face of the composite pipe 4, completing the connection of the sealing ring 5 and the composite pipe 4. Finally, the bolt 334 is loosened to make the pressing block 33 loose from the sealing ring 5, completing the processing.

[0042] In order to facilitate the movement of the composite pipe 4, a V-shaped roller path 6 is provided below the composite pipe 4, and the axes of the rollers on both sides of the roller path 6 are parallel to the length direction of the two supporting edges 311. More specifically, the height of the roller is the same as the height of the supporting edge 311, so that the centers of the composite pipe 4 and the sealing ring 5 correspond to each other, facilitating the concentric connection of the composite pipe 4 and the sealing ring 5. Those skilled in the art should know that components such as the roller path 6, the fixing ring 1, the slide rod 21, and the air cylinder 32 can be supported, positioned, or fixed by a frame body. The shape and style of the frame body can be set as needed and will not be elaborated here.

[0043] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A composite pipe sealing ring connection device, characterized in that: include A fixing ring, wherein the composite pipe can extend into the fixing ring, and the fixing ring can tightly embrace the outer wall of the composite pipe; The heating plate has a rotating shaft on its side, and the heating plate can rotate around the rotating shaft, and when the heating plate rotates to a first extreme position, the heating plate can fit with the end of the composite pipe; The sealing ring positioning unit comprises a positioning plate arranged opposite to the heating plate, the bottom of the positioning plate is provided with two supporting edges, and the two supporting edges are arranged in a V shape, the upper part of the positioning plate is provided with a pressing block, the pressing block can move in a vertical direction, and the pressing block and the two supporting edges surround and form a sealing ring fixing space; The heating plate is placed between the fixing ring and the sealing ring positioning unit, and the positioning plate can push the heating plate to move toward the fixing ring.

2. A composite pipe sealing ring connection device according to claim 1, characterized in that: The fixing ring includes a fixed shoe and a movable shoe. The fixed shoe is fixedly arranged under the composite pipe. One end of the movable shoe and the fixed shoe are hinged to each other, and the other end is respectively provided with a slot. A locking rod is rotatably connected in one of the slots. When the locking rod is rotated to the extreme position, its end can be inserted into the other slot. A nut is threaded on the locking rod, and the nut can be tightly pressed against the end surface of the other slot.

3. A composite pipe sealing ring connection device according to claim 2, characterized in that: Rubber pads are fixedly arranged on the inner sides of the fixed tiles and the movable tiles respectively.

4. A composite pipe sealing ring connection device according to claim 1, characterized in that: A slide bar is provided on one side of the heating plate, a slider is provided on the slide bar, the rotating shaft of the heating plate is connected to the slider, and the heating plate can move axially along the slide bar, so that the heating plate can approach or move away from the fixing ring.

5. A composite pipe sealing ring connection device according to claim 4, characterized in that: A spring is sleeved on the slide bar and placed between the slide block and the fixing ring. One end of the spring can be tightly pressed against the slide block, and when the slide block moves toward the fixing ring, the spring undergoes elastic deformation.

6. A composite pipe sealing ring connection device according to claim 1, characterized in that: A guide groove is formed on the plate surface of the positioning plate. The pressing block comprises a guide portion and a pressing column. The guide portion is placed in the guide groove. The pressing column is fixed on the guide portion and protrudes from the positioning plate.

7. A composite pipe sealing ring connection device according to claim 6, characterized in that: A guide hole is formed at the bottom of the guide groove, and a connecting column is fixedly arranged on the guide portion. The connecting column passes through the guide hole, and a nut is screwed to the connecting column.

8. A composite pipe sealing ring connection device according to claim 7, characterized in that: A screw hole is formed at one end of the guide hole, a bolt is screwed into the screw hole, and the bottom end of the bolt is tightly against the connecting column.

9. A composite pipe sealing ring connection device according to claim 1, characterized in that: The positioning plate is fixedly connected to a piston cylinder of a cylinder.

10. A composite pipe sealing ring connection device according to claim 1, characterized in that: The thickness of the pressing block and the supporting edge is smaller than the thickness of the sealing ring.

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