Single-screw pump screw structure convenient to overhaul

Abstract

The utility model relates to the technical field of single-screw pumps, in particular to a single-screw pump screw structure convenient to overhaul, which comprises a bearing seat, a feeding body, a connecting pipe, a connecting plate, a mounting plate, an inserting rod, an inserting hole, a guide bracket, a locking rod, a locking elbow, a locking ring, a locking spring, a built-in groove and a ratchet toothed plate, two groups of connecting plates are fixedly arranged at the two ends of the connecting pipe, two groups of inserting rods are fixedly arranged on the inner walls of the upper side and the lower side of the connecting plate at the rear end, two groups of inserting holes are formed in the upper side and the lower side of the mounting plate in a penetrating mode, a locking rod is arranged in the guide support, and a locking elbow is fixedly arranged at the lower end of the locking rod; according to the single-screw pump screw structure convenient to overhaul, in the using process, through precise design and an ingenious locking mechanism, the characteristics of connection stability and convenience in overhaul are achieved, and the screw structure is simple in structure, convenient to maintain and high in practicability. And the equipment maintenance efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of single screw pump technology, and in particular to a single screw pump screw structure that is easy to maintain. Background Technology

[0002] A single screw pump is a rotor pump that operates based on the principle of rotary meshing positive displacement. Its core structure consists of an eccentric screw and a fixed bushing. The two mesh with each other to form a closed chamber, thereby achieving stable transport of the medium.

[0003] In the use of single screw pumps, the connection between the connecting pipe and the feed body and discharge body of traditional single screw pumps often relies on bolt structure. When it is necessary to repair the internal screw structure of the single screw pump, it is often necessary to disassemble the entire pump body. This is not only cumbersome and time-consuming, but also increases the downtime of the equipment and reduces production efficiency.

[0004] Therefore, to address the aforementioned issues of inconvenience in achieving stable connections and ease of maintenance, a single-screw pump screw structure that facilitates maintenance can be designed. When the single-screw pump is in use and maintenance is required, only the corresponding modules need to be disassembled, without disassembling the entire pump, greatly simplifying the maintenance process. In summary, this single-screw pump screw structure, through precise design and ingenious locking mechanism, achieves stable connections and ease of maintenance, significantly improving the reliability and maintenance efficiency of the equipment. Utility Model Content

[0005] To overcome the problems of bolted connections in single screw pumps being prone to loosening during long-term operation or under high pressure, leading to material leakage, and frequent disassembly potentially damaging the pump body and increasing maintenance costs, improvements are urgently needed to address these issues, which also hinder stable connection and ease of maintenance.

[0006] The technical solution of this utility model is as follows: a single screw pump screw structure that is easy to maintain, including a bearing housing, a feed body, a connecting pipe, a connecting plate, a mounting plate, a plug rod, a plug hole, a guide bracket, a locking rod, a locking elbow, a locking ring, a locking spring, an internal groove, and a ratchet plate. The feed body is provided at the front end of the bearing housing, and the connecting pipe is provided at the front end of the feed body. Two sets of connecting plates are fixedly provided at both ends of the connecting pipe. The mounting plate is fixedly provided at the front end of the feed body. Two sets of plug rods are fixedly provided on the inner walls of the upper and lower sides of the rear connecting plate. Two sets of plug holes are provided through the upper and lower sides of the mounting plate. Two sets of guide brackets are fixedly provided on the outer walls of the upper and lower sides of the mounting plate. A locking rod is provided inside the guide bracket. A locking elbow is fixedly provided at the lower end of the locking rod. A locking ring is fixedly provided on the side wall of the locking rod. A locking spring is fixedly provided at the upper end of the locking ring. An internal groove is provided inside the plug rod, and a ratchet plate is fixedly provided inside the internal groove.

[0007] Preferably, when assembling the connecting pipe during the operation of the single screw pump, the rear connecting plate of the connecting pipe is first tightly fitted to the front mounting plate of the feed body to achieve a preliminary connection. During this process, the insertion rods on the upper and lower inner walls of the rear connecting plate are inserted into the insertion holes on the upper and lower inner walls of the mounting plate to ensure the stability and accuracy of the connection. At this time, under the elastic action of the locking spring, the locking elbow at the lower end of the locking rod can slide down along the tooth arc surface of the ratchet plate to the inner wall of the lower tooth groove and closely abut against the inner wall of the tooth groove, so that the connecting plate and the mounting plate are locked together, thereby completing the rear installation of the connecting pipe. During installation and maintenance of the screw structure, pulling the locking rod outward will disengage the locking elbow at the lower end of the locking rod from the inner wall of the ratchet toothed plate, thus unlocking the rear connecting plate from the mounting plate. After this step, the connecting pipe can be easily disassembled, allowing for quick maintenance of the internal screw structure. This simplifies the maintenance process by requiring only the disassembly of the corresponding module, eliminating the need for complete disassembly. In conclusion, this single-screw pump screw structure, through precise design and a clever locking mechanism, achieves stable connection and easy maintenance, significantly improving equipment reliability and maintenance efficiency.

[0008] Preferably, the plug rod is slidably connected to the plug hole, the locking rod is slidably connected to the guide bracket, the upper end of the locking spring is fixedly connected to the lower end of the guide bracket, and the locking elbow is in contact with the inner wall of the tooth groove of the ratchet plate.

[0009] Preferably, a sealing protrusion is fixedly provided on the inner wall of the rear connecting plate, and a sealing ring groove is provided on the inner wall of the mounting plate, with the sealing protrusion engaging with the sealing ring groove.

[0010] Preferably, the front end of the connecting pipe is provided with a discharge body, the rear end of the discharge body is fixedly provided with a fixing plate, and multiple sets of bolt rods are provided on both sides of the connecting pipe.

[0011] Preferably, the side wall of the connecting plate has multiple sets of connecting holes, the side wall of the mounting plate has multiple sets of mounting holes, and the side wall of the fixing plate has multiple sets of fixing holes.

[0012] Preferably, the bolt rod is installed inside the connecting plate through the connecting hole, inside the mounting plate through the mounting hole, and inside the fixing plate through the fixing hole.

[0013] Preferably, a nut is provided at the front end of the bolt rod, the nut is threaded to the front side wall of the bolt rod, and the inside of the nut abuts against the side wall of the fixing plate.

[0014] The beneficial effects of this utility model are:

[0015] When assembling the connecting pipe during the operation of a single screw pump, firstly, the rear connecting plate of the connecting pipe is tightly fitted to the front mounting plate of the feed body to achieve a preliminary connection. During this process, the insertion rods on the upper and lower inner walls of the rear connecting plate are inserted into the insertion holes on the upper and lower inner walls of the mounting plate to ensure the stability and accuracy of the connection. At this time, under the elastic action of the locking spring, the locking elbow at the lower end of the locking rod can slide down along the tooth arc surface of the ratchet plate to the inner wall of the lower tooth groove and closely abut against the inner wall of the tooth groove, so that the connecting plate and the mounting plate are locked together, thereby completing the rear end installation of the connecting pipe. When inspecting the screw structure, pulling the locking rod outward will disengage the locking elbow at the lower end of the locking rod from the inner wall of the ratchet toothed plate, thus unlocking the rear connecting plate from the mounting plate. After this step, the connecting pipe can be easily disassembled, allowing for quick inspection of the internal screw structure. Thus, when maintenance is required, only the corresponding module needs to be disassembled, eliminating the need for complete disassembly, greatly simplifying the maintenance process. In summary, this single-screw pump screw structure, through precise design and ingenious locking mechanism, achieves stable connection and easy maintenance, significantly improving equipment reliability and maintenance efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a single screw pump screw structure that is easy to maintain according to this utility model.

[0017] Figure 2 The diagram shown is a first half-section three-dimensional structural schematic of the connecting pipe of a single screw pump screw structure that is easy to maintain according to this utility model.

[0018] Figure 3 The diagram shown is a two-dimensional cross-sectional view of the connecting pipe of a single screw pump screw structure that is easy to maintain according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural diagram of the first outer periphery of the connecting plate of a single screw pump screw structure that is easy to maintain according to this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural diagram of the first outer periphery of the plug-in rod of a single screw pump screw structure that is easy to maintain according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Bearing housing; 2. Feed body; 3. Connecting pipe; 4. Connecting plate; 5. Mounting plate; 6. Insert rod; 7. Insert hole; 8. Guide bracket; 9. Locking rod; 10. Locking elbow; 11. Locking ring; 12. Locking spring; 13. Internal groove; 14. Racket tooth plate; 15. Sealing convex ring; 16. Sealing ring groove; 17. Discharge body; 18. Fixing plate; 19. Bolt rod; 20. Connecting hole; 21. Mounting hole; 22. Fixing hole; 23. Nut. Detailed Implementation

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

[0023] Please see Figure 1 and Figure 5 This utility model provides an embodiment: a single-screw pump screw structure that is easy to maintain, including a bearing housing 1, a feed body 2, a connecting pipe 3, a connecting plate 4, a mounting plate 5, a plug rod 6, a plug hole 7, a guide bracket 8, a locking rod 9, a locking elbow 10, a locking ring 11, a locking spring 12, an internal groove 13, and a ratchet plate 14. The feed body 2 is provided at the front end of the bearing housing 1, and the connecting pipe 3 is provided at the front end of the feed body 2. Two sets of connecting plates 4 are fixedly provided at both ends of the connecting pipe 3. The mounting plate 5 is fixedly provided at the front end of the feed body 2, and the rear end... Two sets of plug-in rods 6 are fixedly installed on the inner walls of the upper and lower sides of the connecting plate 4. Two sets of plug-in holes 7 are opened through the upper and lower sides of the mounting plate 5. Two sets of guide brackets 8 are fixedly installed on the outer walls of the upper and lower sides of the mounting plate 5. A locking rod 9 is installed inside the guide bracket 8. A locking elbow 10 is fixedly installed at the lower end of the locking rod 9. A locking ring 11 is fixedly installed on the side wall of the locking rod 9. A locking spring 12 is fixedly installed at the upper end of the locking ring 11. An internal groove 13 is opened inside the plug-in rod 6. A ratchet plate 14 is fixedly installed inside the internal groove 13.

[0024] Please see Figure 3 and Figure 4The insertion rod 6 is slidably connected to the insertion hole 7, the locking rod 9 is slidably connected to the guide bracket 8, the upper end of the locking spring 12 is fixedly connected to the lower end of the guide bracket 8, and the locking elbow 10 is in contact with the inner wall of the tooth groove of the ratchet plate 14. Under the elastic action of the locking spring 12, the locking elbow 10 at the lower end of the locking rod 9 can slide down along the tooth arc surface of the ratchet plate 14 to the inner wall of the lower tooth groove and in close contact with the inner wall of the tooth groove. A sealing protrusion ring 15 is fixedly provided on the inner wall of the rear connecting plate 4, and the mounting plate 5 is also provided. A sealing ring groove 16 is provided on the inner wall of the connecting pipe 3. The sealing protrusion 15 is engaged with the sealing ring groove 16. The sealing protrusion 15 on the inner wall of the rear connecting plate 4 is engaged with the sealing ring groove 16 on the inner wall of the mounting plate 5, thereby enhancing the sealing performance of the connection. A discharge body 17 is provided at the front end of the connecting pipe 3. A fixing plate 18 is fixedly provided at the rear end of the discharge body 17. Multiple sets of bolt rods 19 are provided on both sides of the connecting pipe 3. The discharge body 17, the connecting pipe 3 and the feed body 2 can be fastened and installed by the multiple sets of bolt rods 19.

[0025] Please see Figure 2 and Figure 3 Multiple sets of connecting holes 20 are provided through the side wall of the connecting plate 4, multiple sets of mounting holes 21 are provided through the side wall of the mounting plate 5, and multiple sets of fixing holes 22 are provided through the side wall of the fixing plate 18. The bolt rod 19 is inserted through the mounting hole 21 into the interior of the connecting hole 20 and the fixing hole 22, so that the discharge body 17, the connecting pipe 3 and the feed body 2 can be connected through. The bolt rod 19 is set inside the connecting plate 4 through the connecting hole 20, inside the mounting plate 5 through the mounting hole 21, and inside the fixing plate 18 through the fixing hole 22. The discharge body 17, the connecting pipe 3 and the feed body 2 are connected through by multiple sets of bolt rods 19. The front end of the bolt rod 19 is provided with a nut 23, which is threaded to the front end side wall of the bolt rod 19. The interior of the nut 23 abuts against the side wall of the fixing plate 18. Finally, the nut 23 is rotated and installed at the front end of the bolt rod 19, so that the installation of the connecting pipe 3 can be completed.

[0026] When the single screw pump is in use, when assembling the connecting pipe 3, firstly, the rear connecting plate 4 of the connecting pipe 3 is tightly fitted with the front mounting plate 5 of the feed body 2 to achieve a preliminary connection.

[0027] During this process, the insertion rods 6 on the inner walls of the upper and lower sides of the rear connecting plate 4 are inserted into the insertion holes 7 on the inner walls of the upper and lower sides of the mounting plate 5 respectively to ensure the stability and accuracy of the connection. At this time, under the elastic action of the locking spring 12, the locking elbow 10 at the lower end of the locking rod 9 can slide down along the tooth arc surface of the ratchet plate 14 to the inner wall of the lower tooth groove and closely contact the inner wall of the tooth groove, so that the connecting plate 4 and the mounting plate 5 achieve a locked state.

[0028] When the plug rod 6 is fully inserted into the plug hole 7, the sealing protrusion 15 on the inner wall of the rear connecting plate 4 is engaged in the sealing ring groove 16 on the inner wall of the mounting plate 5, thereby enhancing the sealing performance of the connection.

[0029] Then, the rear fixing plate 18 of the discharge body 17 is tightly fitted with the front connecting plate 4 of the connecting pipe 3. Next, the bolt rod 19 is inserted through the mounting hole 21 into the interior of the connecting hole 20 and the fixing hole 22. Finally, the nut 23 is rotated and installed on the front end of the bolt rod 19, thereby completing the installation of the connecting pipe 3.

[0030] When overhauling the screw structure, firstly, disassemble the nut 23 and the bolt rod 19. Then, pull the locking rod 9 outward, which will cause the locking elbow 10 at the lower end of the locking rod 9 to disengage from the inner wall of the tooth groove of the ratchet plate 14, thereby unlocking the rear connecting plate 4 and the mounting plate 5. After this step is completed, the connecting pipe 3 can be easily disassembled, and the internal screw structure can be quickly overhauled.

[0031] In summary, the screw structure of this single screw pump, through precise design and ingenious locking mechanism, achieves connection stability and ease of maintenance, greatly improving the reliability and maintenance efficiency of the equipment.

[0032] Through the above steps, when assembling the connecting pipe 3 during the use of the single screw pump, firstly, the rear connecting plate 4 of the connecting pipe 3 is tightly fitted with the front mounting plate 5 of the feed body 2 to achieve a preliminary connection. During this process, the insertion rods 6 on the upper and lower inner walls of the rear connecting plate 4 are respectively inserted into the insertion holes 7 on the upper and lower inner walls of the mounting plate 5 to ensure the stability and accuracy of the connection. At this time, under the elastic action of the locking spring 12, the locking elbow 10 at the lower end of the locking rod 9 can slide down along the tooth arc surface of the ratchet plate 14 to the inner wall of the lower tooth groove and closely abut against the inner wall of the tooth groove, so that the connecting plate 4 and the mounting plate 5 are locked together, thereby completing the connection. During the installation of the rear end of the connector 3, when inspecting the screw structure, pulling the locking rod 9 outward will cause the locking elbow 10 at the lower end of the locking rod 9 to disengage from the inner wall of the tooth groove of the ratchet plate 14, thereby unlocking the rear connecting plate 4 and the mounting plate 5. After this step is completed, the connecting pipe 3 can be easily disassembled, and the internal screw structure can be quickly inspected. In this way, when maintenance is required, only the corresponding module needs to be disassembled, without the need for overall disassembly, which greatly simplifies the maintenance process. In summary, the screw structure of this single screw pump achieves connection stability and easy maintenance through precise design and ingenious locking mechanism, which greatly improves the reliability and maintenance efficiency of the equipment.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A single-screw pump screw structure that is easy to maintain, comprising a bearing housing (1), characterized in that: It also includes a feed body (2), a connecting pipe (3), a connecting plate (4), a mounting plate (5), a plug rod (6), a plug hole (7), a guide bracket (8), a locking rod (9), a locking elbow (10), a locking ring (11), a locking spring (12), an internal groove (13), and a ratchet plate (14). The front end of the bearing seat (1) is provided with a feed body (2), the front end of the feed body (2) is provided with a connecting pipe (3), both ends of the connecting pipe (3) are fixedly provided with two sets of connecting plates (4), the front end of the feed body (2) is fixedly provided with a mounting plate (5), and the inner walls of the upper and lower sides of the rear connecting plate (4) are all Two sets of plug rods (6) are fixedly installed. Two sets of plug holes (7) are opened through the upper and lower sides of the mounting plate (5). Two sets of guide brackets (8) are fixedly installed on the upper and lower outer walls of the mounting plate (5). A locking rod (9) is installed inside the guide bracket (8). A locking elbow (10) is fixedly installed at the lower end of the locking rod (9). A locking ring (11) is fixedly installed on the side wall of the locking rod (9). A locking spring (12) is fixedly installed at the upper end of the locking ring (11). An internal groove (13) is opened inside the plug rod (6). A ratchet plate (14) is fixedly installed inside the internal groove (13).

2. The single-screw pump screw structure for easy maintenance according to claim 1, characterized in that: The plug rod (6) is slidably connected to the plug hole (7), the locking rod (9) is slidably connected to the guide bracket (8), the upper end of the locking spring (12) is fixedly connected to the lower end of the guide bracket (8), and the locking elbow (10) is in contact with the inner wall of the tooth groove of the ratchet plate (14).

3. The single-screw pump screw structure for easy maintenance according to claim 1, characterized in that: A sealing protrusion (15) is fixedly provided on the inner wall of the rear connecting plate (4), and a sealing ring groove (16) is provided on the inner wall of the mounting plate (5). The sealing protrusion (15) and the sealing ring groove (16) are engaged and connected.

4. The single-screw pump screw structure for easy maintenance according to claim 1, characterized in that: The front end of the connecting pipe (3) is provided with a discharge body (17), the rear end of the discharge body (17) is fixedly provided with a fixing plate (18), and multiple sets of bolt rods (19) are provided on both sides of the connecting pipe (3).

5. The single-screw pump screw structure for easy maintenance according to claim 4, characterized in that: Multiple sets of connecting holes (20) are provided through the side wall of the connecting plate (4), multiple sets of mounting holes (21) are provided through the side wall of the mounting plate (5), and multiple sets of fixing holes (22) are provided through the side wall of the fixing plate (18).

6. The single-screw pump screw structure for easy maintenance according to claim 5, characterized in that: The bolt rod (19) is installed inside the connecting plate (4) through the connecting hole (20), the bolt rod (19) is installed inside the mounting plate (5) through the mounting hole (21), and the bolt rod (19) is installed inside the fixing plate (18) through the fixing hole (22).

7. The single-screw pump screw structure for easy maintenance according to claim 4, characterized in that: A nut (23) is provided at the front end of the bolt rod (19). The nut (23) is threaded to the front side wall of the bolt rod (19), and the inside of the nut (23) is in contact with the side wall of the fixing plate (18).

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