Horizontal centrifugal pump

Abstract

The utility model provides a horizontal centrifugal pump belongs to centrifugal pump technical field, including box and base, the top of base is installed with pump main body, the lateral wall of box is installed with the water outlet pipe that is connected with pump main body water inlet end penetrates, the top of box is installed with the box cover, it still includes: filter cartridge, fixed mounting is in the inside center place of box, the top and bottom of filter cartridge all are provided with the opening, the lateral wall fixed mounting of filter cartridge near top end is installed with the water inlet pipe that penetrates the box. The utility model discloses when cleaning filter cartridge, drives the annular scraper and annular brush of linkage mechanism outer wall rotation to descend through hand wheel rotation screw rod, and the impurity on the inner wall of filter cartridge is cleaned down, and the impurity will be pushed to the tank bottom's the impurity discharge port of push plate and annular scraper simultaneously in cleaning, so that the impurity that cleans down can all be discharged through the impurity discharge port, avoids the impurity to continue to block filter cartridge.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and more specifically, to a horizontal centrifugal pump. Background Technology

[0002] Centrifugal pumps are designed based on the principle of centrifugal force. The high-speed rotating impeller blades drive the water to rotate and throw the water out, thereby achieving the purpose of transportation. Horizontal centrifugal pumps have the advantages of simple structure, convenient maintenance and stable operation, and are widely used in various industries such as fire protection, chemical industry, pharmaceutical industry and printing and dyeing industry.

[0003] A search revealed Chinese patent application number 202221791376.5, which discloses a horizontal centrifugal pump body, including a housing. The left side and upper surface of the housing are respectively provided with an inlet pipe and an outlet pipe. A sealing cover is installed on the upper surface of the inlet pipe, and a bearing seat and a filter plate are installed on the lower surface of the sealing cover. The filter plate prevents impurities from entering the housing. A drive rod is inserted into the bearing seat. A blade and a brush are respectively provided at the left and right ends of the drive rod. The flowing liquid drives the blade to rotate, and the blade drives the brush to continuously clean the filter plate, preventing impurities from clogging or adhering to the filter plate surface. This also prevents impurities from wearing the centrifugal pump impeller, extending the service life of the centrifugal pump impeller. The lower surface of the outlet pipe is provided with a bend, and the lower end of the bend is provided with a collection hopper. Opening the valve allows for quick and easy cleaning of impurities in the collection hopper. Although the above-mentioned patent can clean the surface of the filter plate with a brush, it still has the following shortcomings during use: the cleaned impurities are affected by the inertia of the water flow in the inlet pipe and cannot bend completely into the collection hopper. The remaining impurities will still block the surface of the filter plate, failing to achieve the desired cleaning effect. Moreover, when discharging impurities, it is necessary to manually open the valve on the collection hopper. Utility Model Content

[0004] The purpose of this invention is to provide a horizontal centrifugal pump to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A horizontal centrifugal pump includes a housing and a base. A pump body is mounted on the top of the base. A water outlet pipe, connected to the water inlet of the pump body, is installed through the side wall of the housing. A housing cover is mounted on the top of the housing. The pump also includes: A filter cartridge is fixedly installed at the center of the inside of the housing. The top and bottom of the filter cartridge are provided with openings. A water inlet pipe that penetrates the housing is fixedly installed on the side wall of the filter cartridge near the top. A discharge port located inside the filter cartridge is opened at the bottom of the housing. A screw is installed through the center of the box cover and is threadedly connected to the box cover. A push plate is fixedly installed at the bottom end of the screw. An annular scraper is provided on the outer side of the push plate. A plurality of annular brushes are fixedly installed on the outer wall of the push plate below the annular scraper. A sealing plate is installed at the bottom of the housing to seal the discharge port. A linkage mechanism that cooperates with the sealing plate is rotatably mounted on the screw.

[0006] As a preferred technical solution of this application, it also includes a plurality of auxiliary reset mechanisms distributed in a ring on the outside of the discharge port, the auxiliary reset mechanisms passing through the sealing plate, and the top end of the auxiliary reset mechanisms being fixedly connected to the bottom of the box.

[0007] As a preferred technical solution of this application, the auxiliary reset mechanism includes a guide rod fixedly connected to the bottom of the box, a through hole that cooperates with the guide rod on the sealing plate, a limit block fixedly installed at the bottom end of the guide rod, and a spring sleeved on the outside of the guide rod between the limit block and the sealing plate.

[0008] As a preferred technical solution of this application, a boss is fixedly installed at the top center of the sealing plate, and a sealing ring is fixedly installed on the outer side of the boss.

[0009] As a preferred technical solution of this application, the linkage mechanism includes a connecting sleeve, two L-shaped push rods are symmetrically installed on the outer wall of the connecting sleeve, a pressure rod and a pull rod are fixedly installed on the side wall of the push rod, the pull rod is located below the pressure rod, and a crossbar that cooperates with the pressure rod and the pull rod is fixedly installed on the outer wall of the sealing plate.

[0010] As a preferred technical solution of this application, a handwheel is fixedly installed at the top of the screw, a connecting block that is rotatably connected to the connecting sleeve is fixedly installed on the outer wall of the screw near the top, and two guide seats that cooperate with the push rod are symmetrically installed on the outer wall of the housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. When cleaning the filter cylinder, the screw is turned by handwheel, which drives the annular scraper and annular brush on the outer wall of the linkage mechanism to rotate and descend, cleaning the impurities on the inner wall of the filter cylinder. At the same time, the impurities are pushed to the discharge port at the bottom of the box by the push plate and the annular scraper, so that all the cleaned impurities can be discharged through the discharge port, preventing the impurities from continuing to block the filter cylinder. This solves the problem in the existing technology that the cleaned impurities are affected by the inertia of the water flow in the inlet pipe and cannot completely bend the pipe to fall into the collection hopper, and the residual impurities will still block the surface of the filter plate, thus failing to achieve the desired cleaning effect. 2. The screw will drive the push rod to descend synchronously through the connecting block and connecting sleeve. During the gradual descent, the pressure rod will abut against the top of the crossbar, pushing the sealing plate down along the guide rod, so that the discharge port opens to discharge impurities. This solves the problem that the valve on the collection hopper needs to be manually opened when discharging impurities in the existing technology. After cleaning, the screw is rotated in the opposite direction to drive the push rod to rise. During the gradual rise, the pull rod will abut against the bottom of the crossbar to lock the sealing plate and prevent leakage from the discharge port. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of the horizontal centrifugal pump provided in this application; Figure 2 A physical diagram of the bottom structure of the horizontal centrifugal pump housing provided in this application; Figure 3 A physical diagram of the internal structure of the horizontal centrifugal pump housing provided in this application; Figure 4 A schematic diagram of the pusher plate structure of the horizontal centrifugal pump provided in this application; Figure 5 A schematic diagram of the push rod structure of the horizontal centrifugal pump provided in this application; Figure 6 The horizontal centrifugal pump provided in this application Figure 3 Enlarged view of the A-structure.

[0013] The image shows: 1. Housing; 2. Base; 3. Pump body; 4. Housing cover; 5. Inlet pipe; 6. Screw; 7. Handwheel; 8. Linkage mechanism; 9. Outlet pipe; 10. Sealing plate; 11. Guide seat; 12. Auxiliary reset mechanism; 13. Filter cartridge; 14. Crossbar; 15. Sludge discharge port; 16. Annular scraper; 17. Annular brush; 18. Push plate; 19. Through hole; 20. Connecting block; 101. Boss; 102. Sealing ring; 121. Guide rod; 122. Limiting block; 123. Spring; 801. Connecting sleeve; 802. Push rod; 803. Pressure rod; 804. Pull rod. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0015] like Figures 1-4As shown, this embodiment of a horizontal centrifugal pump includes a housing 1 and a base 2. A pump body 3 is mounted on the top of the base 2. A water outlet pipe 9, connected to the water inlet of the pump body 3, is installed through the side wall of the housing 1. A housing cover 4 is mounted on the top of the housing 1. The pump also includes: a filter cylinder 13, fixedly installed at the center of the housing 1, with openings at the top and bottom. A water inlet pipe 5, penetrating the housing 1, is fixedly installed on the side wall of the filter cylinder 13 near the top. A waste discharge port 15, located inside the filter cylinder 13, is opened at the bottom of the housing 1; a screw 6, installed through the center of the housing cover 4 and threadedly connected to the housing cover 4. A push plate 18 is fixedly installed at the bottom end of the screw 6, and a ring is provided on the outer side of the push plate 18. The filter cylinder 13 has an annular scraper 16, and below the annular scraper 16 are multiple annular brushes 17 fixedly installed on the outer wall of the push plate 18. A sealing plate 10 is set at the bottom of the housing 1 to seal the discharge port 15. A linkage mechanism 8 that cooperates with the sealing plate 10 is rotatably installed on the screw 6. When cleaning the filter cylinder 13, the screw 6 is rotated by the handwheel 7, which drives the annular scraper 16 and annular brushes 17 on the outer wall of the linkage mechanism 8 to rotate and descend, cleaning the impurities on the inner wall of the filter cylinder 13. At the same time, the impurities are pushed by the push plate 18 and the annular scraper 16 to the discharge port 15 at the bottom of the housing 1, so that all the cleaned impurities can be discharged through the discharge port 15, preventing the impurities from continuing to block the filter cylinder 13.

[0016] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, it further includes multiple auxiliary reset mechanisms 12 arranged in a ring around the outside of the discharge port 15. The auxiliary reset mechanisms 12 penetrate the sealing plate 10, and the top end of the auxiliary reset mechanism 12 is fixedly connected to the bottom of the housing 1. It should be noted that during use, the auxiliary reset mechanism 12 can drive the sealing plate 10 to reset, preventing the sealing plate 10 from failing to seal the discharge port 15 in time when the discharge is finished.

[0017] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, in a preferred embodiment, based on the above method, the auxiliary reset mechanism 12 further includes a guide rod 121 fixedly connected to the bottom of the housing 1. A through hole 19 is provided on the sealing plate 10 to cooperate with the guide rod 121. A limiting block 122 is fixedly installed at the bottom end of the guide rod 121. A spring 123 is sleeved on the outside of the guide rod 121 between the limiting block 122 and the sealing plate 10. It should be noted that when the pressure rod 803 abuts against the crossbar 14 and drives the sealing plate 10 downwards, the sealing plate 10 compresses the spring 123. When the pressure rod 803 rises with the push rod 802, the spring 123 pushes the sealing plate 10 upwards under its own elastic force, sealing the discharge port 15. The limiting block 122 prevents the sealing plate 10 from slipping off the guide rod 121.

[0018] like Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, a boss 101 is fixedly installed at the top center of the sealing plate 10, and a sealing ring 102 is fixedly installed on the outer side of the boss 101. It should be noted that the presence of the boss 101 and the sealing ring 102 improves the sealing performance between the sealing plate 10 and the discharge port 15, preventing water leakage.

[0019] like Figures 1-5 As shown, in a preferred embodiment, based on the above method, the linkage mechanism 8 further includes a connecting sleeve 801. Two L-shaped push rods 802 are symmetrically mounted on the outer wall of the connecting sleeve 801. A pressure rod 803 and a pull rod 804 are fixedly mounted on the side wall of the push rods 802. The pull rod 804 is located below the pressure rod 803. A crossbar 14, which cooperates with the pressure rod 803 and the pull rod 804, is fixedly mounted on the outer wall of the sealing plate 10. It should be noted that the screw 6 drives the push rod 802 to descend synchronously through the connecting block 20 and the connecting sleeve 801. During the gradual descent, the pressure rod 803 abuts against the top of the crossbar 14, pushing the sealing plate 10 down along the guide rod 121, causing the discharge port 15 to open and discharge impurities. After cleaning, the screw 6 is rotated in the opposite direction to drive the push rod 802 upward. During the gradual upward movement, the pull rod 804 abuts against the bottom of the crossbar 14, locking the sealing plate 10 and preventing leakage from the discharge port 15.

[0020] like Figures 1-5As shown, in a preferred embodiment, based on the above method, a handwheel 7 is fixedly installed at the top of the screw 6, and a connecting block 20 that is rotatably connected to the connecting sleeve 801 is fixedly installed on the outer wall of the screw 6 near the top. Two guide seats 11 that cooperate with the push rod 802 are symmetrically installed on the outer wall of the housing 1. It should be noted that the handwheel 7 facilitates the rotation of the screw 6, the connecting block 20 facilitates the rotational connection between the screw 6 and the connecting sleeve 801, and the guide seats 11 limit and guide the movement of the push rod 802.

[0021] Specifically, when using this horizontal centrifugal pump: During cleaning of the filter cartridge 13, the screw 6 is rotated by the handwheel 7, causing the push plate 18 to descend. During this descent, the annular brush 17 cleans the impurities on the inner wall of the filter cartridge 13. The cleaned impurities move towards the discharge port 15 under the push of the push plate 18 and the annular scraper 16. As the screw 6 moves downward, it drives the push rod 802 to move synchronously through the connecting block 20 and the connecting sleeve 801. During this gradual descent, the pressure rod 803 presses against the crossbar. At the top of 14, the sealing plate 10 is pushed down along the guide rod 121, causing the discharge port 15 to open and discharge impurities. After the impurities are discharged, the screw 6 is rotated in the opposite direction by the handwheel 7, which drives the push plate 18 and the push rod 802 to rise. When the pressure rod 803 rises with the push rod 802, the spring 123 will push the sealing plate 10 to rise under its own elastic force, sealing the discharge port 15. During the gradual rise, the pull rod 804 will abut against the bottom of the crossbar 14 to lock the sealing plate 10 and prevent leakage from the discharge port 15.

Claims

1. A horizontal centrifugal pump, comprising a housing (1) and a base (2), wherein a pump body (3) is mounted on the top of the base (2), characterized in that, The side wall of the housing (1) is fitted with a water outlet pipe (9) that is connected to the water inlet of the pump body (3). The top of the housing (1) is fitted with a housing cover (4). The housing also includes: The filter cylinder (13) is fixedly installed at the center of the inside of the box (1). The top and bottom of the filter cylinder (13) are provided with openings. The side wall of the filter cylinder (13) near the top is fixedly installed with a water inlet pipe (5) that penetrates the box (1). The bottom of the box (1) is provided with a discharge port (15) located inside the filter cylinder (13). A screw (6) is installed through the center of the box cover (4) and is threaded to the box cover (4). A push plate (18) is fixedly installed at the bottom end of the screw (6). An annular scraper (16) is provided on the outer side of the push plate (18). A plurality of annular brushes (17) are fixedly installed on the outer wall of the push plate (18) below the annular scraper (16). A sealing plate (10) is provided at the bottom of the box (1) for sealing the discharge port (15). A linkage mechanism (8) that cooperates with the sealing plate (10) is rotatably installed on the screw (6).

2. A horizontal centrifugal pump according to claim 1, characterized in that, It also includes multiple auxiliary reset mechanisms (12) arranged in a ring outside the discharge port (15), the auxiliary reset mechanisms (12) penetrate the sealing plate (10), and the top of the auxiliary reset mechanisms (12) is fixedly connected to the bottom of the box (1).

3. A horizontal centrifugal pump according to claim 2, characterized in that, The auxiliary reset mechanism (12) includes a guide rod (121) fixedly connected to the bottom of the housing (1), and a through hole (19) that cooperates with the guide rod (121) is provided on the sealing plate (10). A limit block (122) is fixedly installed at the bottom end of the guide rod (121), and a spring (123) is provided between the limit block (122) and the sealing plate (10) and sleeved on the outside of the guide rod (121).

4. A horizontal centrifugal pump according to claim 1, characterized in that, A boss (101) is fixedly installed at the top center of the sealing plate (10), and a sealing ring (102) is fixedly installed on the outside of the boss (101).

5. A horizontal centrifugal pump according to claim 1, characterized in that, The linkage mechanism (8) includes a connecting sleeve (801). Two L-shaped push rods (802) are symmetrically installed on the outer wall of the connecting sleeve (801). A pressure rod (803) and a pull rod (804) are fixedly installed on the side wall of the push rod (802). The pull rod (804) is located below the pressure rod (803). A crossbar (14) that cooperates with the pressure rod (803) and the pull rod (804) is fixedly installed on the outer wall of the sealing plate (10).

6. A horizontal centrifugal pump according to claim 5, characterized in that, A handwheel (7) is fixedly installed at the top of the screw (6), and a connecting block (20) that is rotatably connected to the connecting sleeve (801) is fixedly installed on the outer wall of the screw (6) near the top. Two guide seats (11) that cooperate with the push rod (802) are symmetrically installed on the outer wall of the housing (1).

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