PVC pipeline connecting structure for oil pipeline engineering

Abstract

The utility model relates to a PVC (polyvinyl chloride) pipeline connecting structure for oil pipeline engineering, which belongs to the technical field of oil pipeline connection and comprises a movable pipe, hollow movable balls are integrally communicated with two ends of the movable pipe, movable ball sleeves are movably sleeved on the outer sides of the two hollow movable balls, and the movable ball sleeves are sleeved on the outer sides of the movable ball sleeves. The hollow movable balls can freely move in the movable ball sleeves, one sides, far away from each other, of the two movable ball sleeves are integrally communicated with connecting pipes, a plurality of locking assemblies are arranged on the circumferences of the two connecting pipes at equal intervals, and sealing assemblies are arranged on the outer sides of the two connecting pipes. The movable pipe communicated between the two hollow movable balls can freely move with the connecting pipe on one side of the movable ball sleeve, and finally the connecting pipes at the two ends of the movable pipe can freely rotate through the movable pipe, so that the two connecting pipes can be staggered, and two oil pipelines which are not in the same central axis can be connected; the application range of the connecting structure is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil pipeline connection, and in particular relates to a PVC pipeline connection structure for oil pipeline engineering. Background Art

[0002] Petrochemical pipelines are used to transport oil. Two adjacent pipelines are mostly connected by flanges. The flanges are connected by bolt assemblies. There are sealing gaskets between the flanges. When the bolt assemblies are tightened, the flanges and the sealing gasket surfaces are tightly attached to seal the connection position.

[0003] For example, in the Chinese utility model with the announcement number CN220249241U and the name of an outdoor oil pipeline connection structure, it includes a left oil pipe and a right oil pipe, the inner sides of the left oil pipe and the right oil pipe are connected by a guide component, and the outer sides of the left oil pipe and the right oil pipe are connected and fixed by a locking component. The outer sides of the left oil pipe and the right oil pipe are sleeved with a positioning frame group, and the positioning frame group includes two ring frames, one of which is fixedly connected to the base on the right side and movably connected to the base at the bottom end of the left ring frame. Although the above-mentioned prior art guides the right oil pipe and the left oil pipe by sleeve-mounting the guide platform on the outer side of the inner frame column, After the threaded shaft is rotated, it is embedded in the outer side of the groove on the outer side of the right flange plate and the left flange plate. After the nut ring is connected to the outer side of the threaded shaft through threads, it is embedded in the groove of the left flange plate, thereby realizing the docking tightness of the left oil pipe connection and the right oil pipe connection. However, for the convenient connection of the right oil pipe connection and the left oil pipe connection on the same central axis, in the actual construction process, multiple sections of oil pipelines are buried separately, and they cannot be moved again after the burial is completed, so the two adjacent oil pipelines will be misaligned. At this time, the above-mentioned connection structure cannot be used for good connection. In order to connect two oil pipelines that are not on the same central axis, a PVC pipe connection structure for oil pipeline engineering is now needed. Utility Model Content

[0004] The purpose of the utility model is to provide a PVC pipe connection structure for oil pipeline engineering with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A PVC pipe connection structure for oil pipeline engineering comprises a movable pipe, both ends of the movable pipe are integrally connected with hollow movable balls, movable ball sleeves are arranged on the outer movable sleeves of the two hollow movable balls, a connecting pipe is integrally connected with the two movable ball sleeves on the sides away from each other, a plurality of locking assemblies are equidistantly arranged on the circumference of the two connecting pipes, and sealing assemblies are arranged on the outer sides of the two connecting pipes.

[0007] As a further optimization solution of the present utility model, the locking assembly includes connecting bolts rotatably arranged on the circumference of the connecting pipe.

[0008] As a further optimization solution of the utility model, a plurality of grooves are equidistantly provided on the circumference of the connecting pipe, a rotating shaft is provided inside each of the plurality of grooves, and one end of the connecting bolt is rotatably provided on the rotating shaft.

[0009] As a further optimization solution of the present invention, the sealing assembly includes a sealing ring arranged on the end surface of the connecting pipe, and the sealing ring is made of rubber material.

[0010] As a further optimization scheme of the utility model, one side of the sealing ring is sealingly slidably arranged on the outer periphery of the connecting pipe, and a plurality of compression springs are arranged on the side of the sealing ring away from the sealing end face of the connecting pipe, and one side of the plurality of compression springs is commonly fixedly connected to an annular plate fixedly connected to the outer periphery of the connecting pipe.

[0011] As a further optimization solution of the utility model, the inner surface of the movable ball sleeve is provided with a rubber layer which is in sealing contact with the hollow movable ball.

[0012] The beneficial effect of the utility model is that in the utility model, since the hollow movable ball can move freely inside the movable ball sleeve, the movable tube connected between the two hollow movable balls can move freely with the connecting tube on one side of the movable ball sleeve, and finally the connecting tubes at both ends thereof can be rotated arbitrarily through the movable tube, so that the two connecting tubes can be misaligned, so that two oil pipelines that are not on the same central axis can be connected, without adjusting the position of the oil pipeline, thereby reducing labor intensity, improving connection efficiency and expanding the application range of the connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;

[0016] Figure 4 This utility model Figure 1 Enlarged view of center C.

[0017] In the figure: 1. movable tube; 2. movable ball sleeve; 3. connecting tube; 4. connecting bolt; 5. sealing ring; 6. compression spring; 7. annular plate; 8. hollow movable ball; 9. rotating shaft; 10. groove. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, a PVC pipe connection structure for oil pipeline engineering includes a movable pipe 1, both ends of the movable pipe 1 are integrally connected with hollow movable balls 8, the outer movable sleeves of the two hollow movable balls 8 are provided with movable ball sleeves 2, one end of the hollow movable ball 8 is provided with an opening, the opening is connected with the inside of the movable ball sleeve 2, the inner surface of the movable ball sleeve 2 is provided with a rubber layer that is sealed and fitted with the hollow movable ball 8, and the rubber layer can improve the sealing between the hollow movable ball 8 and the movable ball sleeve 2 when the hollow movable ball 8 moves inside the movable ball sleeve 2, so as to prevent oil from leaking through the gap, and the two movable ball sleeves 2 are integrally connected with a connecting pipe 3 on the side away from each other, and the two connecting pipes 3 A plurality of locking assemblies are equidistantly arranged on the circumference of the connecting pipe 3, and the locking assemblies are used to facilitate the connection of the connecting pipe 3 with the oil pipeline. The locking assemblies include connecting bolts 4 rotatably arranged on the circumference of the connecting pipe 3, and a plurality of grooves 10 are equidistantly provided on the circumference of the connecting pipe 3. A rotating shaft 9 is arranged on the inner side of the plurality of grooves 10, and one end of the connecting bolt 4 is rotatably arranged on the rotating shaft 9. When in use, the connecting bolt 4 is rotated so that one end of the connecting bolt 4 rotates around the rotating shaft 9, which facilitates the connection of the connecting bolt 4 with the oil pipeline. Moreover, since the connecting bolt 4 is arranged on the circumference of the connecting pipe 3, no additional bolts are required for connection, which prevents the loss of external bolts and improves the convenience of connection.

[0021] like Figure 1 , Figure 2 , Figure 4 As shown, a sealing assembly is arranged on the outer side of the two connecting pipes 3, and the sealing assembly includes a sealing ring 5 which is arranged on the end face of the connecting pipe 3 through the sealing slide, and a plurality of compression springs 6 are arranged on the side of the sealing ring 5 away from the sealing end face of the connecting pipe 3, and a ring plate 7 which is fixedly connected to the outer periphery of the connecting pipe 3 is commonly connected on one side of the plurality of compression springs 6. When in use, the compression spring 6 can make the sealing ring 5 tightly pressed on the connecting end face of the oil pipeline to improve the sealing performance. The sealing ring 5 is made of rubber material, and the rubber material can better improve the sealing effect and prevent leakage.

[0022] It should be noted that, when in use, this PVC pipe connection structure for oil pipeline engineering can connect two adjacent oil pipelines by connecting multiple connecting bolts 4 on the connecting pipe 3 to the end face of the oil pipeline, and the two connecting pipes 3 can be misaligned by the hollow movable balls 8 at both ends of the movable pipe 1 moving inside the movable ball sleeve 2 without affecting the stability of the connection. It can connect two oil pipelines that are not on the same central axis, thereby improving the connection efficiency and expanding the scope of application of the connection structure.

[0023] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A PVC pipe connection structure for oil pipeline engineering, comprising a movable pipe (1), characterized in that: The two ends of the movable tube (1) are integrally connected and provided with hollow movable balls (8); the outer movable sleeves of the two hollow movable balls (8) are provided with movable ball sleeves (2); the two movable ball sleeves (2) are integrally connected and provided with connecting tubes (3) on the sides away from each other; a plurality of locking components are equidistantly provided on the circumference of the two connecting tubes (3); and sealing components are provided on the outer sides of the two connecting tubes (3).

2. A PVC pipe connection structure for oil pipeline engineering according to claim 1, characterized in that: The locking assembly comprises a connecting bolt (4) rotatably arranged on the circumference of the connecting pipe (3).

3. A PVC pipe connection structure for oil pipeline engineering according to claim 2, characterized in that: A plurality of grooves (10) are equidistantly formed on the circumference of the connecting pipe (3), a rotating shaft (9) is disposed inside each of the grooves (10), and one end of the connecting bolt (4) is rotatably disposed on the rotating shaft (9).

4. The PVC pipe connection structure for oil pipeline engineering according to claim 1, characterized in that: The sealing assembly comprises a sealing ring (5) arranged on the end surface of the connecting pipe (3), and the sealing ring (5) is made of rubber material.

5. The PVC pipe connection structure for oil pipeline engineering according to claim 4, characterized in that: One side of the sealing ring (5) is sealingly slidably arranged on the outer periphery of the connecting pipe (3); a plurality of compression springs (6) are arranged on the side of the sealing ring (5) away from the sealing end surface of the connecting pipe (3); one side of the plurality of compression springs (6) is commonly fixedly connected to an annular plate (7) fixedly connected to the outer periphery of the connecting pipe (3).

6. The PVC pipe connection structure for oil pipeline engineering according to claim 1, characterized in that: The inner surface of the movable ball sleeve (2) is provided with a rubber layer which is sealed and fitted with the hollow movable ball (8).

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