Inlet and outlet pipeline connecting structure of single-screw pump

Abstract

The utility model relates to the field of pipeline connection, in particular to a single-screw pump inlet and outlet pipeline connecting structure which comprises a pump body, a feeding port and a discharging port are formed in the pump body, fixing pipes are fixed to the feeding port and the discharging port respectively, annular plates are fixed to the outer side walls of the fixing pipes, mounting grooves are formed in the side walls of the annular plates at equal angles, and the mounting grooves are communicated with the pump body. The single-screw pump inlet and outlet pipeline connecting structure comprises an annular plate, a mounting groove is formed in the side wall of the annular plate, a sliding way is formed in the side wall of the annular plate, an arc-shaped plate used for blocking the mounting groove is slidably connected into the sliding way, the arc-shaped plate extends to the outer side of the annular plate, and a connecting part is arranged at the end of the fixing pipe. And the threaded rod is prevented from sliding out of the mounting groove in the nut tightening process, and the smooth connection process is guaranteed. The side wall of the arc-shaped plate is provided with the driving plate with the anti-skid lines, an operator pushes the driving plate to enable the arc-shaped plate to slide easily, plugging of the mounting groove is achieved, and convenience is provided for mounting. And parts are prevented from being lost, and mounting and dismounting are convenient.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection, specifically a connection structure for the inlet and outlet pipelines of a single screw pump. Background Technology

[0002] Single screw pumps require inlet and outlet pipe connections, typically achieved using flanges and bolts. However, this connection method presents numerous inconveniences; spare parts such as bolts, gaskets, and nuts are easily lost. Furthermore, disassembly and installation are cumbersome, particularly the alignment of the nuts and bolts. Installation and disassembly become even more challenging, especially in dark or confined spaces.

[0003] Therefore, it is necessary to provide a single screw pump inlet and outlet pipeline connection structure to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a connection structure for the inlet and outlet pipes of a single screw pump.

[0005] This utility model provides a single screw pump inlet and outlet pipe connection structure, including a pump body, an inlet and an outlet, a fixed pipe fixed at both the inlet and outlet, an annular plate fixed to the outer wall of the fixed pipe, an installation groove provided at equal angles on the side wall of the annular plate, a slide rail provided on the side wall of the annular plate, an arc-shaped plate for sealing the installation groove slidably connected in the slide rail, and the arc-shaped plate extending to the outer side of the annular plate, a connecting part provided at the end of the fixed pipe, a connecting pipe installed at the end of the fixed pipe, an embedding groove provided at the end of the connecting pipe that mates with the connecting part, and the fixed pipe installed in the embedding groove, an installation seat fixed at equal angles on the side wall of the connecting pipe, a threaded rod hinged in the installation seat, the threaded rod passing through the installation groove, a nut connected to the threaded rod by threads, and the connecting pipe and the fixed pipe connected by the threaded rod and the nut.

[0006] Preliminary pipe connection: Align the groove at the end of the connecting pipe with the connection part of the fixed pipe, and insert the fixed pipe into the groove to complete the preliminary connection between the connecting pipe and the fixed pipe. The sealing gasket in the groove provides a good seal and prevents media leakage at the connection point.

[0007] Threaded rod positioning: Since the connecting pipe sidewall is fixed with a mounting seat at an equal angle, and a threaded rod is hinged in the mounting seat, when the connecting pipe and the fixed pipe are connected, the threaded rod will pass through the mounting groove set at an equal angle on the sidewall of the annular plate.

[0008] Curved plate sealing: Pushing the drive plate with anti-slip texture on the side wall of the curved plate causes the curved plate to slide within the track, sealing the mounting groove. This prevents the threaded rod from slipping out of the mounting groove due to its own weight or external force during subsequent tightening of the nut, ensuring a smooth connection process.

[0009] Fastening Connection: Install a washer on the threaded rod, and then screw the nut onto the threaded rod via the threaded connection. As the nut is tightened, the connecting pipe and the fixed pipe are tightly connected together, forming a stable inlet and outlet pipe connection structure. When disassembly is required, unscrew the nut. Since the washer will not move to the middle of the threaded rod, it is convenient to reconnect the fixed pipe and the connecting pipe.

[0010] Preferably, a washer is installed on the threaded rod to prevent the nut from slipping.

[0011] Preferably, the diameter of the threaded portion of the threaded rod is smaller than the diameter of the middle portion of the threaded rod, and the diameter of the middle portion of the threaded rod is larger than the inner diameter of the washer, so that the range of motion of the washer can only be within the threaded section of the threaded rod. After the threaded rod is disengaged from the mounting groove, the washer is prevented from moving to the middle portion of the threaded rod, which facilitates the reconnection of the fixing pipe and the connecting pipe.

[0012] Preferably, a sealing gasket is installed in the embedding groove, which provides a good sealing effect.

[0013] Preferably, the side wall of the arc-shaped plate is provided with a driving plate, and the driving plate is provided with anti-slip texture, which facilitates the driving of the arc-shaped plate to slide along the slide rail, thereby sealing the mounting groove and preventing the threaded rod from falling out of the mounting groove under its own weight and external force before the nut is tightened, thus facilitating installation.

[0014] Compared with related technologies, the present invention provides the following beneficial effects:

[0015] By fixing the mounting base at an angle on the side wall of the connecting pipe and hinged the threaded rod, the threaded rod passes through the mounting groove on the side wall of the annular plate when the fixed pipe and the connecting pipe are initially connected. Then, the gasket is installed and the nut is tightened, so that the connecting pipe and the fixed pipe can be tightly connected together to form a stable inlet and outlet pipe connection structure.

[0016] The curved plate slides within the track to seal the mounting slot, preventing the threaded rod from slipping out during nut tightening and ensuring a smooth connection. Simultaneously, the curved plate's sidewall features a drive plate with anti-slip texture; operators can easily slide the curved plate by pushing the drive plate, sealing the mounting slot and facilitating installation. This prevents parts loss and makes installation and disassembly convenient.

[0017] When disassembly is required, simply unscrew the nut. Due to the spacer's position, it is easy to reconnect the fixing pipe and connecting pipe, which improves the maintainability and reusability of the pipe connection structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the fixed tube structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting pipe structure of this utility model.

[0021] The following are the labels in the diagram: 1. Pump body; 2. Inlet; 3. Outlet; 4. Fixed pipe; 5. Annular plate; 6. Mounting groove; 7. Slide rail; 8. Arc plate; 9. Connecting part; 10. Connecting pipe; 11. Embedded groove; 12. Mounting base; 13. Threaded rod; 14. Nut; 15. Gasket; 16. Sealing gasket; 17. Drive plate; 18. Anti-slip texture. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to 1- Figure 3 A single screw pump inlet and outlet pipeline connection structure is disclosed, mainly consisting of a pump body 1. The pump body 1 is provided with an inlet 2 and an outlet 3 for the entry and exit of the medium. Fixed pipes 4 are fixedly installed at both the inlet 2 and the outlet 3, serving as key components for connecting the pump body 1 to external pipelines.

[0024] An annular plate 5 is welded and fixed to the outer wall of the fixed pipe 4. The annular plate 5 is coaxially arranged with the fixed pipe 4, serving as support and positioning. Multiple mounting grooves 6 are evenly spaced at equal angles on the side wall of the annular plate 5. These mounting grooves 6 are used for the subsequent threaded rod 13 to pass through, thus connecting the fixed pipe 4 and the connecting pipe 10. Simultaneously, a slide rail 7 is also provided on the side wall of the annular plate 5, with its direction aligned with the circumference of the annular plate 5. An arc-shaped plate 8 is slidably connected within the slide rail 7. The shape of the arc-shaped plate 8 matches the slide rail 7, and the arc-shaped plate 8 extends to the outer side of the annular plate 5, facilitating pushing by the operator. The function of the arc-shaped plate 8 is to seal the mounting grooves 6, preventing the threaded rod 13 from sliding out of the mounting grooves 6 during subsequent operations.

[0025] The fixed tube 4 has a connecting part 9 at its end. The shape and size of the connecting part 9 are carefully designed to mate with the embedding groove 11 at the end of the connecting tube 10. The connecting tube 10 is installed at the end of the fixed tube 4, and the end of the connecting tube 10 has an embedding groove 11 that mates with the connecting part 9. During connection, the connecting part 9 of the fixed tube 4 is embedded into the embedding groove 11 of the connecting tube 10 to achieve initial docking. In addition, a sealing gasket 16 is installed in the embedding groove 11. The sealing gasket 16 is made of a material with good elasticity. When the fixed tube 4 is embedded into the embedding groove 11, the sealing gasket 16 is compressed, thereby achieving a good sealing effect and effectively preventing the medium from leaking at the docking point.

[0026] Multiple mounting seats 12 are fixed at equal angles on the side wall of the connecting pipe 10. The number of mounting seats 12 is the same as the number of mounting slots 6, and their positions correspond. A threaded rod 13 is hinged inside each mounting seat 12. When the connecting pipe 10 and the fixing pipe 4 are initially connected, the threaded rod 13 will pass through the mounting slots 6 set at equal angles on the side wall of the annular plate 5. A washer 15 is installed on the threaded rod 13. The inner diameter of the washer 15 is slightly larger than the diameter of the threaded part of the threaded rod 13, but smaller than the diameter of the middle part of the threaded rod 13. This design ensures that the movement range of the washer 15 is limited to the threaded section of the threaded rod 13. When the threaded rod 13 is disengaged from the mounting slot 6, the washer 15 will not move to the middle part of the threaded rod 13, facilitating the reconnection operation of the fixing pipe 4 and the connecting pipe 10. At the same time, the washer 15 also prevents the nut 14 from slipping. The nut 14 is threadedly connected to the threaded rod 13. By tightening the nut 14, the connecting pipe 10 and the fixing pipe 4 can be tightly connected together.

[0027] The side wall of the arc plate 8 is provided with a drive plate 17, which protrudes from the surface of the arc plate 8 and has anti-slip texture 18. By pushing the drive plate 17 with anti-slip texture 18, the operator can more easily make the arc plate 8 slide in the slide rail 7, thereby sealing the mounting groove 6 and preventing the threaded rod 13 from falling out of the mounting groove 6 under its own weight and external force before the nut 14 is tightened, thus facilitating the installation process.

[0028] The specific connection operation process is as follows:

[0029] Preliminary pipe connection: First, align the insertion groove 11 at the end of the connecting pipe 10 with the connection part 9 of the fixed pipe 4, and then slowly insert the fixed pipe 4 into the insertion groove 11 to complete the preliminary connection between the connecting pipe 10 and the fixed pipe 4. At this time, the sealing gasket 16 set in the insertion groove 11 is compressed, which can play a good sealing role and effectively prevent the medium from leaking at the connection.

[0030] Threaded rod positioning: Since the mounting base 12 is fixed at an equal angle on the side wall of the connecting pipe 10, and the threaded rod 13 is hinged in the mounting base 12, the threaded rod 13 will pass through the mounting groove 6 set at an equal angle on the side wall of the annular plate 5 during the docking process of the connecting pipe 10 and the fixed pipe 4, thus preparing for the subsequent fastening connection.

[0031] Arc-shaped plate sealing: Push the drive plate 17 with anti-slip texture 18 on the side wall of the arc-shaped plate 8 to make the arc-shaped plate 8 slide smoothly in the slide rail 7 until the mounting groove 6 is completely sealed. The purpose of this is to prevent the threaded rod 13 from sliding out of the mounting groove 6 due to its own weight or external force during the subsequent tightening of the nut 14, thereby ensuring the smooth progress of the connection process.

[0032] Fastening connection: Install the washer 15 on the threaded rod 13, and then screw the nut 14 onto the threaded rod 13 via a threaded connection. As the nut 14 is tightened, the gap between the connecting pipe 10 and the fixed pipe 4 gradually decreases, eventually becoming tightly connected together to form a stable inlet and outlet pipe connection structure. When disassembly is required, simply unscrew the nut 14. Since the washer 15 will not move to the middle part of the threaded rod 13, it is convenient to reconnect the fixed pipe 4 and the connecting pipe 10.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A connection structure for the inlet and outlet pipes of a single screw pump, characterized in that, The system includes a pump body (1), which has an inlet (2) and an outlet (3). A fixing pipe (4) is fixed to both the inlet (2) and outlet (3). An annular plate (5) is fixed to the outer wall of the fixing pipe (4). An installation groove (6) is provided at equal angles on the side wall of the annular plate (5). A slide rail (7) is provided on the side wall of the annular plate (5). An arc-shaped plate (8) for sealing the installation groove (6) is slidably connected within the slide rail (7), and the arc-shaped plate (8) extends to the outside of the annular plate (5). A connecting part (9) is provided at the end of the fixing pipe (4). A connecting pipe (10) is installed at the end of the fixed pipe (4). The end of the connecting pipe (10) is provided with an embedding groove (11) that mates with the connecting part (9). The fixed pipe (4) is installed in the embedding groove (11). A mounting seat (12) is fixed at an equal angle on the side wall of the connecting pipe (10). A threaded rod (13) is hinged in the mounting seat (12). The threaded rod (13) passes through the mounting groove (6). A nut (14) is threadedly connected to the threaded rod (13). The connecting pipe (10) and the fixed pipe (4) are connected through the threaded rod (13) and the nut (14).

2. The single screw pump inlet and outlet pipe connection structure according to claim 1, characterized by, A washer (15) is installed on the threaded rod (13).

3. The single screw pump inlet and outlet pipe connection structure according to claim 1, characterized by, The diameter of the threaded portion of the threaded rod (13) is smaller than the diameter of the middle portion of the threaded rod (13), and the diameter of the middle portion of the threaded rod (13) is larger than the inner diameter of the washer (15).

4. The single screw pump inlet and outlet pipe connection structure according to claim 1, characterized by, A sealing gasket (16) is installed in the embedding groove (11).

5. The single screw pump inlet and outlet pipe connection structure according to claim 1, characterized by, The side wall of the arc plate (8) is provided with a drive plate (17), and the drive plate (17) is provided with anti-slip texture (18).

Images