Stainless steel water pump shell

Abstract

The utility model relates to the technical field of water pumps, in particular to a stainless steel water pump shell which comprises a base, a lower shell body fixedly connected to the base, a support fixedly connected to the top end of the lower shell body, an upper shell body fixedly connected to the top end of the support, a filter screen sleeved outside the support, a first protruding block fixedly connected to one end of the filter screen, and a second protruding block fixedly connected to the other end of the filter screen. The other end of the filter screen is fixedly connected with a second protruding block, the second protruding block is fixedly connected with a clamping block, the first protruding block is provided with a clamping groove, the clamping block is clamped with the clamping groove, the upper shell is rotationally connected with a protective cover, the protective cover is arranged outside the first protruding block and the second protruding block in a sleeving mode, the protective cover is rotationally connected with a bolt, and the clamping block is provided with a screw hole. The end part of the bolt is in threaded connection with the screw hole; the top end of the upper shell is fixedly connected with a water outlet; and meanwhile, the protective cover not only can further reinforce the connecting part of the filter screen, but also can play a good role in protecting the connecting part of the filter screen.

Description

Technical Field

[0001] This utility model relates to a water pump casing, specifically a stainless steel water pump casing, and belongs to the field of water pump technology. Background Technology

[0002] Stainless steel water pumps are a type of pump equipment made primarily of stainless steel. They possess excellent characteristics such as strong corrosion resistance, high strength, and hygiene and safety, and are widely used in many fields including chemical, food machinery, petroleum, papermaking, mining, power, liquefied gas, pharmaceutical, water supply and drainage, municipal, equipment support, electronics industry, and urban construction. In some industrial water systems, sewage treatment systems, and agricultural irrigation systems, where the water source contains impurities such as silt, a filter screen is installed on the pump casing to protect the pump.

[0003] However, the filter screens installed on the traditional stainless steel water pump casing are usually fixed with multiple bolts. During installation, multiple bolts need to be tightened one by one, which is time-consuming and labor-intensive. In some sewage treatment systems and other environments where the water source contains a lot of impurities, a large amount of impurities quickly accumulate on the surface and mesh of the filter screen, requiring frequent cleaning or replacement of the filter screen. When disassembling, cleaning or replacing the filter screen, multiple bolts need to be unscrewed one by one, which is inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel water pump housing to solve the above-mentioned problems. By engaging the locking block and the locking groove on the first protrusion and the second protrusion, the filter screen can be quickly pre-positioned, making the filter screen installation more convenient and quick. The protective cover can protect the connection part of the filter screen and is tightened with bolts. This not only makes the connection part of the filter screen more secure, but also effectively prevents impurities such as mud and sand from accumulating at the connection part of the filter screen and causing corrosion damage.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a stainless steel water pump casing includes a base, a lower casing fixedly connected to the base, a bracket fixedly connected to the top of the lower casing, an upper casing fixedly connected to the top of the bracket, a filter screen sleeved on the outside of the bracket, a fixing structure installed on the filter screen, the fixing structure including a first protrusion, one end of the filter screen fixedly connected to the first protrusion, the other end of the filter screen fixedly connected to a second protrusion, a locking block fixedly connected to the second protrusion, a locking groove formed on the first protrusion, the locking block engaging with the locking groove, a protective cover rotatably connected to the upper casing, the protective cover sleeved on the outside of the first and second protrusions, a bolt rotatably connected to the protective cover, a screw hole formed on the locking block, the end of the bolt threadedly connected to the screw hole, the bolt slidably connected to the first protrusion, and a water outlet fixedly connected to the top of the upper casing.

[0006] Preferably, the cross-section of the end of the card block is trapezoidal, and the card block is perpendicular to the second protrusion.

[0007] Preferably, the protective cover has a rectangular cross-section at one end that is fitted over the first protrusion and the second protrusion, and the length of the protective cover is greater than the length of the first protrusion and the second protrusion.

[0008] Preferably, a sealing gasket is fixedly connected to the protective cover, and the sealing gasket abuts against the outer wall of the filter screen.

[0009] Preferably, a positioning post is fixedly connected to both the lower and upper housings, and two positioning holes are provided on the filter screen, with the two positioning posts respectively inserted into the two positioning holes.

[0010] Preferably, the end of the positioning post has a trapezoidal structure, and the positioning hole and the fixing structure are symmetrically arranged about the center of the filter screen.

[0011] Preferably, a handle is rotatably connected to the upper housing, and the end of the water outlet has a frustum-shaped structure.

[0012] Preferably, the top section of the lower shell is T-shaped, and the bottom section of the upper shell is T-shaped.

[0013] The beneficial effects of this utility model are as follows: a first protrusion is fixedly connected to one end of the filter screen, and a second protrusion is fixedly connected to the other end of the filter screen. A locking block is fixedly connected to the second protrusion, and a locking groove is provided on the first protrusion. The locking block engages with the locking groove. Through the engagement of the locking block and the locking groove on the first and second protrusions, the filter screen can be quickly preliminarily positioned, making the filter screen installation more convenient and quick. A protective cover is rotatably connected to the upper shell. The protective cover is sleeved on the outside of the first and second protrusions. A bolt is rotatably connected to the protective cover, and a screw hole is provided on the locking block. The end of the bolt is threadedly connected to the screw hole. The protective cover can protect the connection part of the filter screen and is tightened with the bolt. This not only makes the connection part of the filter screen more secure, but also effectively prevents impurities such as mud and sand from accumulating at the connection part of the filter screen and causing corrosion damage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the upper shell and the bracket of this utility model;

[0016] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0017] Figure 4 for Figure 2The diagram shown is an enlarged view of the structure of section B.

[0018] Figure 5 This is a schematic diagram of the connection structure between the second protrusion and the locking block of this utility model;

[0019] Figure 6 This is a schematic diagram of the connection structure between the bolt and the locking block of this utility model.

[0020] In the diagram: 1. Base; 2. Lower shell; 3. Bracket; 4. Upper shell; 5. Filter screen; 6. Fixing structure; 601. First protrusion; 602. Second protrusion; 603. Locking block; 604. Locking groove; 605. Protective cover; 606. Bolt; 607. Screw hole; 608. Sealing gasket; 7. Positioning post; 8. Positioning hole; 9. Handle; 10. Water outlet. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6 As shown, a stainless steel water pump casing includes a base 1, a lower housing 2 fixedly connected to the base 1, a bracket 3 fixedly connected to the top of the lower housing 2, an upper housing 4 fixedly connected to the top of the bracket 3, a filter screen 5 sleeved on the outside of the bracket 3, and a fixing structure 6 installed on the filter screen 5. The fixing structure 6 includes a first protrusion 601, one end of the filter screen 5 is fixedly connected to the first protrusion 601, and the other end of the filter screen 5 is fixedly connected to a second protrusion 602. A locking block 60 is fixedly connected to the second protrusion 602. 3. A slot 604 is provided on the first protrusion 601, and the locking block 603 engages with the slot 604. A protective cover 605 is rotatably connected to the upper housing 4. The protective cover 605 is sleeved on the outside of the first protrusion 601 and the second protrusion 602. A bolt 606 is rotatably connected to the protective cover 605. A screw hole 607 is provided on the locking block 603. The end of the bolt 606 is threadedly connected to the screw hole 607. The bolt 606 is slidably connected to the first protrusion 601. A water outlet 10 is fixedly connected to the top of the upper housing 4.

[0023] As a technical optimization of this utility model, a positioning post 7 is fixedly connected to both the lower housing 2 and the upper housing 4. Two positioning holes 8 are opened on the filter screen 5. The two positioning posts 7 are respectively inserted into the two positioning holes 8. Through the insertion of the positioning posts 7 into the positioning holes 8, the ends of the positioning posts 7 are trapezoidal. The positioning holes 8 and the fixing structure 6 are symmetrically arranged about the center of the filter screen 5, so as to quickly realize the positioning of the filter screen 5 and make the installation of the filter screen 5 more convenient. The cross section of the end of the locking block 603 is trapezoidal. The locking block 603 is perpendicular to the second protrusion 602, so that the locking block 603 can be quickly and firmly embedded into the slot 604 of the first protrusion 601, so that the filter screen 5 is initially fixed on the bracket 3.

[0024] As a technical optimization of this utility model, the protective cover 605 is fitted onto the outside of the first protrusion 601 and the second protrusion 602, and its cross-section is rectangular. The length of the protective cover 605 is greater than the length of the first protrusion 601 and the second protrusion 602, so that the protective cover 605 can completely cover and protect the connection part of the filter screen 5, while not hindering the rotation of the protective cover 605. A sealing gasket 608 is fixedly connected to the protective cover 605. The sealing gasket 608 abuts against the outer wall of the filter screen 5. When the bolt 606 is tightened, the sealing gasket 608 presses against the outer wall of the filter screen 5 inward, thereby increasing the sealing performance of the protective cover 605 and making the protective effect of the protective cover 605 better.

[0025] As a technical optimization of this utility model, a handle 9 is rotatably connected to the upper housing 4. When the water pump needs to be moved, it can be carried by the handle 9 rotatably connected to the upper housing 4. The end of the water outlet 10 has a frustum-shaped structure, which makes the installation of the water pipe more convenient.

[0026] As a technical optimization of this utility model, the top section of the lower shell 2 is in the shape of a "T" and the bottom section of the upper shell 4 is in the shape of a "T", which facilitates the installation of the positioning post 7 and the positioning of the filter screen 5 through the positioning post 7.

[0027] In use, when installing the filter screen 5, firstly, align the two positioning holes 8 on the filter screen 5 with the positioning posts 7 on the lower housing 2 and upper housing 4 respectively. Then, move the filter screen 5 towards the bracket 3 so that the positioning holes 8 engage with the positioning posts 7, thereby quickly positioning the filter screen 5. Since the positioning holes 8 and the fixing structure 6 are symmetrically arranged about the center of the filter screen 5, positioning the filter screen 5 through the positioning holes 8 allows the first protrusion 601 and the second protrusion 602 at both ends of the filter screen 5 to quickly align with the protective cover 605. Next, put the filter screen 5 on the outside of the bracket 3, and lift the protective cover 605 upward with one hand, while using the thumb and forefinger of the other hand to clamp the first protrusion 601 and the second protrusion 602 and apply force towards each other. At the same time, using the trapezoidal structure at the end of the locking block 603, the locking block 603 is inserted into the locking groove 604, thereby initially fixing the filter screen 5 on the bracket 3. Then, rotate the protective cover 605 downward so that the protective cover 605 is fitted onto the bracket 3. The filter screen 5 is secured by tightening the bolt 606 on the protective cover 605, which then passes through the first protrusion 601 and its end is threaded into the screw hole 607 on the locking block 603. The sealing gasket 608 on the protective cover 605 abuts against the outer wall of the filter screen 5, thus enhancing the sealing effect of the protective cover 605 and preventing external impurities such as mud and sand from accumulating at the connection between the first protrusion 601 and the second protrusion 602 and causing corrosion damage to the component. When cleaning or replacing the filter screen 5, loosen the bolt 606 on the protective cover 605, then rotate to open the protective cover 605 and separate the locking block 603 from the locking groove 604. The filter screen 5 can then be removed for cleaning or replacement without repeatedly tightening multiple screws, making filter screen 5 disassembly more convenient. The end of the outlet 10 has a frustum-shaped structure that serves as a guide, facilitating centering during water pipe installation, reducing installation difficulty, and thus improving installation efficiency.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stainless steel water pump casing, comprising a base (1), characterized in that: A lower housing (2) is fixedly connected to the base (1). A bracket (3) is fixedly connected to the top of the lower housing (2). An upper housing (4) is fixedly connected to the top of the bracket (3). A filter screen (5) is sleeved on the outside of the bracket (3). A fixing structure (6) is installed on the filter screen (5). The fixing structure (6) includes a first protrusion (601). One end of the filter screen (5) is fixedly connected to the first protrusion (601). The other end of the filter screen (5) is fixedly connected to a second protrusion (602). A locking block (603) is fixedly connected to the second protrusion (602). The first protrusion (601) is fixedly connected to the first protrusion (602). 01) A slot (604) is provided on the upper shell (4), and the slot (604) is engaged with the slot (603). A protective cover (605) is rotatably connected to the upper shell (4). The protective cover (605) is sleeved on the outside of the first protrusion (601) and the second protrusion (602). A bolt (606) is rotatably connected to the protective cover (605). A screw hole (607) is provided on the slot (603). The end of the bolt (606) is threadedly connected to the screw hole (607). The bolt (606) is slidably connected to the first protrusion (601). A water outlet (10) is fixedly connected to the top of the upper shell (4).

2. The stainless steel water pump casing according to claim 1, characterized in that: The cross-section of the end of the card block (603) is trapezoidal, and the card block (603) is perpendicular to the second protrusion (602).

3. The stainless steel water pump casing according to claim 2, characterized in that: The protective cover (605) is fitted onto the outside of the first protrusion (601) and the second protrusion (602) at one end with a rectangular cross section. The length of the protective cover (605) is greater than the length of the first protrusion (601) and the second protrusion (602).

4. The stainless steel water pump casing according to claim 3, characterized in that: A sealing gasket (608) is fixedly connected to the protective cover (605), and the sealing gasket (608) abuts against the outer wall of the filter screen (5).

5. A stainless steel water pump casing according to claim 1, characterized in that: A positioning post (7) is fixedly connected to both the lower housing (2) and the upper housing (4). Two positioning holes (8) are opened on the filter screen (5). The two positioning posts (7) are respectively inserted into the two positioning holes (8).

6. A stainless steel water pump casing according to claim 5, characterized in that: The end of the positioning post (7) is trapezoidal, and the positioning hole (8) and the fixing structure (6) are symmetrically arranged about the center of the filter screen (5).

7. A stainless steel water pump casing according to claim 5, characterized in that: The upper shell (4) is rotatably connected to a handle (9), and the end of the water outlet (10) is a frustum-shaped structure.

8. A stainless steel water pump casing according to claim 5, characterized in that: The top section of the lower shell (2) is T-shaped, and the bottom section of the upper shell (4) is T-shaped.

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