Horizontal screw pump

Abstract

The utility model discloses a horizontal screw pump which comprises a screw pump body, and a filter cylinder is arranged on a feed port of the screw pump body. A through hole with a rectangular section is formed in the filter cylinder; an opening is formed in the side face of the filter cylinder, a filter assembly is arranged in the filter cylinder, and at least part of the filter assembly extends out of the opening. The filter assembly comprises a frame body, a filter screen is arranged in the frame body, a collecting box is arranged at one end of the filter screen, a scraping plate is arranged on the surface of the filter screen in a sliding mode, a push rod is connected to the scraping plate, and at least part of the push rod extends out of the frame body. The screw pump solves the problems that in a screw pump in the prior art, a filter screen assembly of the screw pump is generally arranged at a feeding port, the feeding port is generally vertically communicated with a feeding pipeline, and the feeding pipeline is generally fixedly arranged and is difficult to move, so that the filter assembly at the feeding port of the screw pump is difficult to detach and clean.

Description

Technical Field

[0001] This utility model relates to the field of screw pumps, specifically to a horizontal screw pump. Background Technology

[0002] A horizontal screw pump is a positive displacement pump that uses a screw and stator to form a sealed cavity for fluid transport. The feed inlet of a screw pump is generally equipped with a filter screen to prevent larger foreign objects from entering the pump body. For example, Chinese patent CN216950841 U provides a screw pump including a pump body and a base for mounting the pump body. The pump head has an inlet and an outlet. A drive mechanism is located on the screw pump at the outlet end. The pump body has a transmission shaft connected to the drive mechanism, a screw is installed inside the pump body, and a universal joint is located between the transmission shaft and the screw. The pump body has an inlet chamber, and the inlet is connected to the inlet chamber. A filter assembly for filtering impurities is located at the inlet. In screw pumps like the one described above, the filter screen assembly is generally located at the feed inlet, which is usually vertically connected to a feed pipe. The feed pipe is generally fixed and difficult to move, making it difficult to disassemble and clean the filter assembly at the screw pump feed inlet. Utility Model Content

[0003] The purpose of this utility model is to provide a horizontal screw pump that solves the problem in the prior art where the filter screen assembly of the screw pump is generally located at the feed inlet, the feed inlet is generally vertically connected to the feed pipe, and the feed pipe is generally fixed and difficult to move, which makes it difficult to disassemble and clean the filter assembly at the feed inlet of the screw pump.

[0004] To achieve the above objectives, this utility model provides a horizontal screw pump, which includes a screw pump body. A filter cylinder is provided on the feed inlet of the screw pump body. A through hole with a rectangular cross-section is formed inside the filter cylinder. An opening is formed on the side of the filter cylinder. A filter assembly is provided inside the filter cylinder, and the filter assembly extends at least partially out of the opening. The filter assembly includes a frame, a filter screen is provided inside the frame, a collection box is provided at one end of the filter screen, a scraper is slidably provided on the surface of the filter screen, and a push rod is connected to the scraper, with the push rod extending at least partially out of the frame.

[0005] Preferably, a first docking seat is provided at the opening on the side of the filter cylinder;

[0006] A second docking seat is provided at the end of the frame;

[0007] The first mating seat and the second mating seat are locked together by screws.

[0008] Preferably, a rubber ring is provided at the contact point between the first docking seat and the second docking seat.

[0009] Preferably, the second docking seat is provided with a sliding sleeve, and the push rod is at least partially located inside the sliding sleeve.

[0010] Preferably, a sealing sleeve is provided inside the sliding sleeve.

[0011] Preferably, there are two push rods, and the ends of the two push rods are connected by a handle.

[0012] Preferably, flange structures are provided at both ends of the filter cylinder.

[0013] Beneficial Effects: This utility model provides a horizontal screw pump, which includes a screw pump body. A filter cylinder is provided on the feed inlet of the screw pump body. A through hole with a rectangular cross-section is formed in the filter cylinder. An opening is formed on the side of the filter cylinder. A filter assembly is provided in the filter cylinder, and the filter assembly extends at least partially out of the opening. The filter assembly includes a frame, a filter screen is provided in the frame, a collection box is provided at one end of the filter screen, a scraper is slidably provided on the surface of the filter screen, and a push rod is connected to the scraper, with the push rod extending at least partially out of the frame. One end of the filter cylinder is connected to the inlet of the pump body, and the other end is connected to the feed pipe. The filter component inside the filter cylinder can filter the flowing fluid. The filter component can be removed from the side opening without disassembling the feed pipe. When the pump stops operating, the push rod can be pulled to scrape the foreign objects on the surface of the filter screen into the collection box using the scraper, so as to avoid the filter screen accumulating too many foreign objects and affecting the flow. The filter component can also be removed periodically to clean the filter screen and the collection box.

[0014] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a structural diagram of the horizontal screw pump provided by this utility model;

[0017] Figure 2 This is a structural diagram of the filter cylinder in the horizontal screw pump provided by this utility model;

[0018] Figure 3 This is a split view of the filter cylinder in the horizontal screw pump provided by this utility model;

[0019] Figure 4This is a structural diagram of the filter assembly in the horizontal screw pump provided by this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 1-Screw pump body; 2-Filter cylinder; 3-First docking seat; 4-Filter assembly; 5-Flange structure; 6-Through hole; 41-Frame; 42-Filter screen; 43-Scraper; 44-Collection box; 45-Sliding sleeve; 46-Push rod; 47-Handle; 48-Second docking seat. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0023] like Figure 1-4 As shown: This utility model provides a horizontal screw pump, which includes a screw pump body 1, and a filter cylinder 2 is provided on the feed inlet of the screw pump body 1; a through hole 6 with a rectangular cross-section is formed inside the filter cylinder 2; an opening is formed on the side of the filter cylinder 2, and a filter assembly 4 is provided inside the filter cylinder 2, the filter assembly 4 extending at least partially out of the opening; the filter assembly 4 includes a frame 41, a filter screen 42 is provided inside the frame 41, a collection box 44 is provided at one end of the filter screen 42, a scraper 43 is slidably provided on the surface of the filter screen 42, and a push rod 46 is connected to the scraper 43, the push rod 46 extending at least partially out of the frame 41. One end of the filter cylinder is connected to the inlet of the pump body, and the other end is connected to the feed pipe. The filter component inside the filter cylinder can filter the flowing fluid. The filter component can be removed from the side opening without disassembling the feed pipe. When the pump stops operating, the push rod can be pulled to scrape the foreign objects on the surface of the filter screen into the collection box using the scraper, so as to avoid the filter screen accumulating too many foreign objects and affecting the flow. The filter component can also be removed periodically to clean the filter screen and the collection box.

[0024] In a preferred embodiment of the present invention, in order to lock the frame body into the filter cylinder body, a first docking seat 3 is provided at the opening on the side of the filter cylinder body 2.

[0025] The end of the frame 41 is provided with a second docking seat 48;

[0026] The first docking seat 3 and the second docking seat 48 are locked together by screws.

[0027] In a preferred embodiment of this utility model, in order to improve the sealing performance between the two docking seats, a rubber ring is provided at the contact point between the first docking seat 3 and the second docking seat 48.

[0028] In a preferred embodiment of the present invention, in order to limit the displacement of the push rod, a sliding sleeve 45 is provided on the second docking seat 48, and the push rod 46 is at least partially located inside the sliding sleeve 45.

[0029] In a preferred embodiment of this utility model, in order to increase the sealing performance of the sliding sleeve, a sealing sleeve is provided inside the sliding sleeve 45.

[0030] In a preferred embodiment of this utility model, in order to facilitate pushing and pulling the push rod 46, there are two push rods 46, and the ends of the two push rods 46 are connected by a handle 47.

[0031] In a preferred embodiment of this utility model, in order to facilitate the installation and fixing of the filter cylinder, flange structures 5 are respectively provided at both ends of the filter cylinder 2.

[0032] The preferred 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 specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0034] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A horizontal screw pump, characterized in that, The horizontal screw pump includes a screw pump body (1), and a filter cylinder (2) is provided on the feed inlet of the screw pump body (1); The filter cylinder (2) has a through hole (6) with a rectangular cross-section inside; The filter cylinder (2) has an opening on its side, and a filter assembly (4) is provided inside the filter cylinder (2), with the filter assembly (4) extending at least partially out of the opening. The filter assembly (4) includes a frame (41), a filter screen (42) is provided inside the frame (41), a collection box (44) is provided at one end of the filter screen (42), a scraper (43) is slidably provided on the surface of the filter screen (42), a push rod (46) is connected to the scraper (43), and the push rod (46) extends at least partially out of the frame (41).

2. The horizontal screw pump according to claim 1, characterized in that, The filter cylinder (2) has a first docking seat (3) at the opening on its side; The end of the frame (41) is provided with a second docking seat (48); The first docking seat (3) and the second docking seat (48) are locked together by screws.

3. The horizontal screw pump according to claim 2, characterized in that, A rubber ring is provided at the contact point between the first docking seat (3) and the second docking seat (48).

4. The horizontal screw pump according to claim 3, characterized in that, The second docking seat (48) is provided with a sliding sleeve (45), and the push rod (46) is at least partially located inside the sliding sleeve (45).

5. The horizontal screw pump according to claim 4, characterized in that, A sealing sleeve is provided inside the sliding sleeve (45).

6. The horizontal screw pump according to claim 5, characterized in that, There are two push rods (46), and the ends of the two push rods (46) are connected by a handle (47).

7. The horizontal screw pump according to claim 1, characterized in that, The filter cylinder (2) is provided with flange structures (5) at both ends.

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