Centrifugal acid and alkali resistant pump with protection function

Abstract

The utility model discloses a centrifugal acid and alkali resistant pump with a protection function, which relates to the technical field of centrifugal pumps, and comprises a pump body assembly, a protection mechanism, a connecting mechanism and an extrusion mechanism, the protection mechanism is arranged in the pump body assembly and used for blocking solid particles from passing through, the connecting mechanism is arranged between the protection mechanism and the pump body assembly, and the extrusion mechanism is arranged between the protection mechanism and the pump body assembly. The extrusion mechanism is arranged between the connecting mechanism and the protection mechanism and used for enabling the protection mechanism to be attached to the pump body assembly. Liquid entering the pump body assembly is filtered through the protection mechanism, so that the liquid passing through the protection mechanism and liquid making contact with the impeller do not contain solid particles, the solid particles are prevented from making contact with the impeller, a coating on the surface of the impeller is prevented from being damaged, the centrifugal pump is prevented from being damaged, and the service life of the centrifugal pump is prolonged. Therefore, the service life of the centrifugal pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a centrifugal acid and alkali resistant pump with protective function. Background Technology

[0002] Centrifugal acid and alkali resistant pumps are a type of pump specially designed for conveying corrosive media such as acids and alkalis. The outer wall of the impeller and the inner wall of the flow channel are coated with a corrosion-resistant coating, making the centrifugal pump more durable.

[0003] During operation, the impeller of a centrifugal acid and alkali resistant pump drives the liquid to rotate inside the pump, causing the outer wall of the impeller to continuously contact the liquid. If the liquid contains a large number of solid particles, the impeller will be subjected to constant friction, leading to wear and damage to the corrosion-resistant coating on the impeller surface. This can result in damage to the centrifugal pump and shorten its service life. To address this issue, we have proposed a centrifugal acid and alkali resistant pump with protective functions. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal acid and alkali resistant pump with protective function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal acid and alkali resistant pump with protective function, comprising:

[0006] Pump body assembly;

[0007] A protective mechanism is provided inside the pump body assembly, and the protective mechanism is used to block solid particles from passing through;

[0008] A connecting mechanism is provided between the protective mechanism and the pump body assembly;

[0009] A squeezing mechanism is disposed between the connecting mechanism and the protective mechanism, and the squeezing mechanism is used to fit the protective mechanism into the pump body assembly.

[0010] Preferably, the pump body assembly includes:

[0011] Drive motor;

[0012] Pump base, which is fixedly connected to the front of the drive motor;

[0013] Pump cover, which is disposed on the front of the pump base;

[0014] An impeller is rotatably connected to the front of the pump base, a pump cover is disposed on the front of the impeller, the output end of the drive motor passes through the back of the pump base and is connected to the back of the impeller for transmission, and a protective mechanism is disposed on the front of the impeller.

[0015] Preferably, the protective mechanism includes:

[0016] A connecting ring, wherein the connecting ring is disposed inside the pump base;

[0017] A filter screen is fixedly connected to the front of a connecting ring, an impeller is disposed inside the filter screen, and a connecting mechanism is disposed outside the filter screen.

[0018] Preferably, the connecting mechanism includes:

[0019] A collar, wherein the collar is fitted onto the outer wall of the filter screen, and the extrusion mechanism is disposed between the connecting ring and the collar;

[0020] A connecting plate is fixedly connected to the outer wall of the collar;

[0021] The slot is located on the front of the pump base, and the outer wall of the connecting plate is movably connected to the inner wall of the slot.

[0022] A fixing mechanism is provided between the connecting plate and the pump base.

[0023] Preferably, the extrusion mechanism includes:

[0024] A movable rod is fixedly connected to the front of the connecting ring, and a locking mechanism is provided on the outer wall of the movable rod;

[0025] A movable hole is provided on the front of the collar, and the outer wall of the movable rod is movably connected to the inner wall of the movable hole.

[0026] A compression spring is disposed between the connecting ring and the collar, and the compression spring is sleeved on the outer wall of the movable rod.

[0027] Preferably, the locking mechanism includes:

[0028] External thread groove, wherein the external thread groove is formed on the outer wall of the movable rod;

[0029] A locking nut is fitted onto the outer wall of the movable rod, and the outer wall of the external threaded groove is threadedly connected to the inner wall of the locking nut.

[0030] Preferably, the fixing mechanism includes:

[0031] A socket is provided on the front side of the connecting plate;

[0032] A fixing bolt is inserted into the front of the pump cover and into the inner wall of the insertion hole. The outer wall of the fixing bolt is threaded to the front of the pump base.

[0033] The technical effects and advantages of this utility model are as follows:

[0034] This invention filters the liquid entering the pump body components through a protective mechanism, ensuring that the liquid that comes into contact with the impeller is free of solid particles. This prevents solid particles from contacting the impeller, avoids damage to the impeller surface coating, and thus prevents damage to the centrifugal pump, thereby extending the service life of the centrifugal pump. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0036] Figure 2 This is a schematic diagram of the front structure of the pump base of this utility model.

[0037] Figure 3 This is a three-dimensional structural diagram of the protective mechanism of this utility model.

[0038] Figure 4 This is a side cross-sectional view of the extrusion mechanism of this utility model.

[0039] In the diagram: 101, drive motor; 102, pump base; 103, pump cover; 104, impeller; 201, connecting ring; 202, filter screen; 301, connecting plate; 302, collar; 401, movable rod; 402, movable hole; 403, compression spring; 501, external thread groove; 502, lock nut; 601, slot; 602, insertion hole; 603, fixing bolt. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] This utility model provides, for example Figures 1-4The centrifugal acid and alkali resistant pump with protective function includes a pump body assembly, a protective mechanism, a connecting mechanism, and a squeezing mechanism. The protective mechanism is located inside the pump body assembly and is used to block solid particles from passing through. The connecting mechanism is located between the protective mechanism and the pump body assembly. The squeezing mechanism is located between the connecting mechanism and the protective mechanism and is used to fit the protective mechanism into the pump body assembly. The protective mechanism filters the liquid entering the pump body assembly, ensuring that the liquid that comes into contact with the impeller 104 does not contain solid particles. This prevents solid particles from contacting the impeller 104, avoids damage to the coating on the surface of the impeller 104, and thus prevents damage to the centrifugal pump, thereby extending the service life of the centrifugal pump.

[0042] The pump assembly includes a drive motor 101, a pump base 102, a pump cover 103, and an impeller 104. The pump base 102 is fixedly connected to the front of the drive motor 101. The pump cover 103 is located on the front of the pump base 102 and the front of the impeller 104. The impeller 104 is rotatably connected to the front of the pump base 102. The output end of the drive motor 101 passes through the back of the pump base 102 and is connected to the back of the impeller 104. A protective mechanism is located on the front of the impeller 104. When the drive motor 101 is energized, it drives the impeller 104 to rotate, thereby creating a negative pressure around the impeller 104. This allows external liquid to enter between the pump base 102 and the pump cover 103 through the inlet pipe at the top, and then be discharged through the outlet pipe on the front of the pump cover 103. The drive motor 101 is electrically connected to an external power source via an external switch, which facilitates operator control of the drive motor 101 and improves the safety and convenience of operating the drive motor 101.

[0043] The protective mechanism includes a connecting ring 201 and a filter screen 202. The connecting ring 201 is located inside the pump base 102, and the filter screen 202 is fixedly connected to the front of the connecting ring 201. The impeller 104 is located inside the filter screen 202, and the connecting mechanism is located outside the filter screen 202. The connecting ring 201 is attached to the inner wall of the front of the pump base 102, so that the filter screen 202 can completely cover the impeller 104. This allows the liquid entering the pump assembly to be filtered by the filter screen 202 before contacting the impeller 104, thus preventing the impeller 104 from contacting solid particles when rotating. The aperture of the filter screen 202 allows liquid to pass through, but solid particles in the liquid cannot pass through.

[0044] The connecting mechanism includes a collar 302, a connecting plate 301, a slot 601, and a fixing mechanism. The collar 302 is sleeved on the outer wall of the filter screen 202. The squeezing mechanism is located between the connecting ring 201 and the collar 302. The connecting plate 301 is fixedly connected to the outer wall of the collar 302. The slot 601 is opened on the front of the pump base 102. The outer wall of the connecting plate 301 and the inner wall of the slot 601 are movably inserted and connected. The fixing mechanism is located between the connecting plate 301 and the pump base 102. The collar 302 is positioned within the pump body assembly by the connecting plate 301 being engaged in the slot 601.

[0045] The compression mechanism includes a movable rod 401, a movable hole 402, and a compression spring 403. The movable rod 401 is fixedly connected to the front of the connecting ring 201. A locking mechanism is provided on the outer wall of the movable rod 401. The movable hole 402 is opened on the front of the collar 302. The outer wall of the movable rod 401 and the inner wall of the movable hole 402 are movably inserted and connected. The compression spring 403 is disposed between the connecting ring 201 and the collar 302. The compression spring 403 is sleeved on the outer wall of the movable rod 401. The positioned collar 302 positions the compression spring 403, so that the compression spring 403 can stably compress the connecting ring 201, so that the connecting ring 201 can be tightly attached to the inner wall of the pump seat 102, thereby ensuring that the liquid can be filtered through the filter screen 202 before contacting the impeller 104.

[0046] The locking mechanism includes an external threaded groove 501 and a locking nut 502. The external threaded groove 501 is formed on the outer wall of the movable rod 401, and the locking nut 502 is sleeved on the outer wall of the movable rod 401. The outer wall of the external threaded groove 501 is threadedly connected to the inner wall of the locking nut 502. By locking the outer wall of the movable rod 401 and the inner wall of the external threaded groove 501, the collar 302 will not separate from the movable rod 401, thereby improving the stability of the extrusion mechanism.

[0047] The fixing mechanism includes a socket 602 and a fixing bolt 603. The socket 602 is located on the front of the connecting plate 301. The fixing bolt 603 is inserted through the front of the pump cover 103 and the inner wall of the socket 602. The outer wall of the fixing bolt 603 is threaded to the front of the pump base 102. By passing through the front of the pump cover 103 and the socket 602, and then screwing the fixing bolt 603 into the threaded hole on the inner wall of the slot 601, the drive motor 101 and the pump base 102 can be fixed, thereby fixing the connecting plate 301 in the slot 601, thus ensuring the stability of the protective mechanism.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifugal acid and alkali resistant pump with protective function, characterized in that, include: Pump body assembly; A protective mechanism is provided inside the pump body assembly, and the protective mechanism is used to block solid particles from passing through; A connecting mechanism is provided between the protective mechanism and the pump body assembly; A squeezing mechanism is disposed between the connecting mechanism and the protective mechanism, and the squeezing mechanism is used to fit the protective mechanism into the pump body assembly.

2. A centrifugal acid and alkali resistant pump with protective function according to claim 1, characterized in that, The pump assembly includes: Drive motor (101); Pump base (102), the pump base (102) is fixedly connected to the front of the drive motor (101); Pump cover (103), the pump cover (103) is disposed on the front side of pump base (102); An impeller (104) is rotatably connected to the front of a pump base (102). A pump cover (103) is disposed on the front of the impeller (104). The output end of a drive motor (101) passes through the back of the pump base (102) and is connected to the back of the impeller (104) in a transmission manner. A protective mechanism is disposed on the front of the impeller (104).

3. A centrifugal acid and alkali resistant pump with protective function according to claim 2, characterized in that, The protective mechanism includes: A connecting ring (201) is disposed inside the pump base (102); A filter screen (202) is fixedly connected to the front of a connecting ring (201), an impeller (104) is disposed inside the filter screen (202), and a connecting mechanism is disposed outside the filter screen (202).

4. A centrifugal acid and alkali resistant pump with protective function according to claim 3, characterized in that, The connecting mechanism includes: A collar (302) is fitted onto the outer wall of the filter screen (202), and the extrusion mechanism is disposed between the connecting ring (201) and the collar (302); A connecting plate (301) is fixedly connected to the outer wall of the collar (302); The slot (601) is located on the front of the pump base (102), and the outer wall of the connecting plate (301) is movably inserted and connected to the inner wall of the slot (601). A fixing mechanism is provided between the connecting plate (301) and the pump base (102).

5. A centrifugal acid and alkali resistant pump with protective function according to claim 4, characterized in that, The extrusion mechanism includes: Movable rod (401), the movable rod (401) is fixedly connected to the front of the connecting ring (201), and the outer wall of the movable rod (401) is provided with a locking mechanism; A movable hole (402) is provided on the front of the collar (302), and the outer wall of the movable rod (401) is movably inserted and connected to the inner wall of the movable hole (402). A compression spring (403) is disposed between the connecting ring (201) and the collar (302), and the compression spring (403) is sleeved on the outer wall of the movable rod (401).

6. A centrifugal acid and alkali resistant pump with protective function according to claim 5, characterized in that, The locking mechanism includes: External thread groove (501), the external thread groove (501) is formed on the outer wall of the movable rod (401); A locking nut (502) is sleeved on the outer wall of the movable rod (401), and the outer wall of the external thread groove (501) is threadedly connected to the inner wall of the locking nut (502).

7. A centrifugal acid and alkali resistant pump with protective function according to claim 4, characterized in that, The fixing mechanism includes: A socket (602) is provided on the front side of the connecting plate (301); A fixing bolt (603) is inserted into the front of the pump cover (103), and the fixing bolt (603) is inserted into the inner wall of the insertion hole (602). The outer wall of the fixing bolt (603) is threadedly connected to the front of the pump seat (102).

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