A sealing structure for a corrosion-resistant pump

Abstract

A sealing structure for a corrosion-resistant pump includes a pump body, a sealing structure, and a connecting pipe. A flange in the pump body is connected to a flange in the connecting pipe by a first bolt. The sealing structure is installed at the connection between the pump body and the connecting pipe. The sealing structure consists of an upper cover plate, a lower cover plate, an upper sealing plate, and a lower sealing plate. The upper and lower cover plates are fitted onto the connection between the pump body and the connecting pipe, covering the flange at the connection. The interior of the upper and lower cover plates is provided with several hexagonal limiting grooves that match the hexagonal heads of the first bolts, and the hexagonal heads of the first bolts are embedded in the limiting grooves. The upper and lower sealing plates are slidably connected to the upper and lower cover plates, respectively. Several limiting nuts, threadedly connected to the first bolts, are rotatably provided in the upper and lower sealing plates, and these limiting nuts abut against the nuts of the first bolts. This invention has advantages such as improved sealing performance and ease of installation and removal.

Description

Technical Field

[0001] This utility model relates to the field of corrosion-resistant pump technology, and in particular to a sealing structure for a corrosion-resistant pump. Background Technology

[0002] There are many types of pumps, including water pumps, liquid pumps, and corrosion-resistant pumps. As the name suggests, these pumps have a certain degree of corrosion resistance, are made of corrosion-resistant materials, and have a corrosion-resistant coating both inside and out. They are mainly used for transporting liquids and are widely used.

[0003] During use, the corrosion-resistant pump needs to be connected to the connecting pipe. Currently, the pump body and the connecting pipe are connected by bolts to the flange of the connecting pipe and the flange of the pump body. However, in actual use, the operation of the pump body will cause vibration at the connection joint. Long-term vibration can easily cause the bolts to loosen, which in turn can cause the connection between the connecting pipe and the pump body to loosen, resulting in gaps and leaks. At the same time, the connection joint is exposed to the outside for a long time, which can also easily cause leaks due to uncertain external factors. Therefore, a sealing structure is needed to prevent the bolts from loosening and to cover the connection joint, so as to avoid the connection joint being exposed to the outside and leaking due to uncertain external factors. Utility Model Content

[0004] This invention provides a sealing structure for a corrosion-resistant pump to solve the problems mentioned in the background art.

[0005] To address the aforementioned problems, this utility model provides a sealing structure for a corrosion-resistant pump, comprising a pump body, a sealing structure, and a connecting pipe. The flange in the pump body and the flange in the connecting pipe are connected by a first bolt. The sealing structure is installed at the connection between the pump body and the connecting pipe. The sealing structure consists of an upper cover plate, a lower cover plate, an upper sealing plate, and a lower sealing plate. The upper and lower cover plates are fitted onto the connection between the pump body and the connecting pipe, covering the flange at the connection. The interior of the upper and lower cover plates is provided with several hexagonal limiting grooves that match the hexagonal heads of the first bolts, and the hexagonal heads of the first bolts are embedded in the limiting grooves. The upper and lower sealing plates are slidably connected to the upper and lower cover plates, respectively. The upper and lower sealing plates are rotatably provided with several limiting nuts that are threadedly connected to the first bolts, and the limiting nuts abut against the nuts of the first bolts.

[0006] Preferably, the upper cover plate and the lower cover plate are symmetrically provided with connecting ears on both sides, and the upper cover plate and the lower cover plate are fixedly connected by the connecting ears and the second bolt.

[0007] Preferably, the end of the limiting nut connected to the first bolt is the limiting end, located on the inner side of the upper sealing plate and the lower sealing plate, and the end of the limiting nut located on the outer side of the upper sealing plate and the lower sealing plate is the driving end.

[0008] Preferably, the upper cover plate and the lower cover plate are provided with sealing grooves that match the upper sealing plate and the lower sealing plate on the side where they connect, and sealing gaskets are installed in the sealing grooves.

[0009] Preferably, a positioning groove is provided in the middle of the upper cover plate and the lower cover plate, and a positioning block that is slidably connected to the positioning groove is fixed in the upper sealing plate and the lower sealing plate.

[0010] The beneficial effects of adopting the above technical solutions are:

[0011] 1. The upper and lower cover plates in the sealing mechanism, together with the upper and lower sealing covers, can cover the flange at the connection between the pump body and the connecting pipe, thereby preventing the connection from being exposed to the outside and avoiding leakage problems caused by external factors.

[0012] 2. The hexagonal head of the first bolt is limited by the limiting grooves in the upper and lower cover plates, and the second nut in the first bolt is formed by the limiting nuts in the upper and lower sealing plates. The double nuts prevent the bolt from falling off, thereby avoiding leakage caused by bolt loosening due to vibration. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the pump body and connecting pipe of this utility model.

[0015] Figure 3 This is a schematic diagram of the unfolded structure of the sealing structure of this utility model.

[0016] Wherein: 1-Pump body; 2-Sealing structure; 21-Upper cover plate; 22-Lower cover plate; 23-Upper sealing plate; 24-Lower sealing plate; 25-Limiting groove; 26-Limiting nut; 261-Limiting end; 262-Drive end; 27-Connecting ear; 28-Sealing groove; 281-Sealing gasket; 29-Positioning groove; 291-Positioning block; 3-Connecting pipe; 4-First bolt; 5-Second bolt. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-3 In this embodiment, a sealing structure for a corrosion-resistant pump includes a pump body 1, a sealing structure 2, and a connecting pipe 3. The flange in the pump body 1 and the flange in the connecting pipe 3 are connected by a first bolt 4. The sealing structure 2 is installed at the connection between the pump body 1 and the connecting pipe 3. The sealing structure 2 consists of an upper cover plate 21, a lower cover plate 22, an upper sealing plate 23, and a lower sealing plate 24. The upper cover plate 21 and the lower cover plate 22 are fitted onto the connection between the pump body 1 and the connecting pipe 3, and the flange at the connection is secured. The upper cover plate 21 and the lower cover plate 22 are respectively provided with a plurality of hexagonal limiting grooves 25 that match the hexagonal head of the first bolt 4, and the hexagonal head of the first bolt 4 is embedded in the limiting groove 25. The upper sealing plate 23 and the lower sealing plate 24 are respectively slidably connected to the upper cover plate 21 and the lower cover plate 22. The upper sealing plate 23 and the lower sealing plate 24 are respectively provided with a plurality of limiting nuts 26 that are threadedly connected to the first bolt 4, and the limiting nuts 26 abut against the nuts of the first bolt 4.

[0021] Through the above technical solution, after the pump body 1 and the connecting pipe 3 are connected by the flange and the first bolt 4, the upper cover plate 21 is fastened above the flange at the connection point, and the hexagonal head of the first bolt 4 is inserted into the limiting groove 25 in the upper cover plate 21. Then, the lower cover plate 22 is fastened below the flange at the connection point, and the hexagonal head of the first bolt 4 is inserted into the limiting groove 25 in the lower cover plate 22. Then, the upper cover plate 21 and the lower cover plate 22 are connected. At this time, the upper sealing plate 23 is fastened into the upper cover plate 21 and the lower sealing plate 24 is fastened into the lower cover plate 22, so that the limiting nut 26 and the lower sealing plate 24 are fastened into the lower cover plate 22. The first bolt 4 corresponds to the first bolt 4. Then, the limiting nut 26 is rotated to tighten the limiting nut 26 onto the first bolt 4, which abuts against the nut on the first bolt 4. This effectively prevents the nut from loosening due to vibration, thus avoiding leakage caused by loosening and improving the sealing performance of the connection. While tightening the limiting nut 26, the upper sealing plate 23 and the lower sealing plate 24 will move. They will then move into the upper cover plate 21 and the lower cover plate 22, so that the flange at the connection is completely covered, thereby preventing leakage at the connection caused by uncertain external factors.

[0022] Preferably, the upper cover plate 21 and the lower cover plate 22 are symmetrically provided with connecting ears 27 on both sides, and the upper cover plate 21 and the lower cover plate 22 are fixedly connected by the connecting ears 27 and the second bolt 5.

[0023] Through the above technical solution, the connecting ear 27, in conjunction with the second bolt 5, facilitates the installation and removal of the upper cover plate 21 and the lower cover plate 22, thereby facilitating the installation and removal of the sealing structure 2 and improving convenience.

[0024] Preferably, the end of the limiting nut 26 connected to the first bolt 4 is the limiting end 261, which is located on the inner side of the upper sealing plate 23 and the lower sealing plate 24, and the end of the limiting nut 26 located on the outer side of the upper sealing plate 23 and the lower sealing plate 24 is the driving end 262.

[0025] With the lifting technology, the driving end 262 can be driven by a tool to rotate the limiting nut 26, thereby facilitating the limiting end 261 to perform anti-loosening operation on the nut in the first bolt 4.

[0026] Preferably, the upper cover plate 21 and the lower cover plate 22 are provided with sealing grooves 28 that match the upper sealing plate 23 and the lower sealing plate 24 on the side where they connect, and a sealing gasket 281 is installed in the sealing groove 28.

[0027] Through the above technical solution, the sealing groove 28, in conjunction with the sealing gasket 281, can effectively improve the sealing performance of the connection between the upper cover plate 21, the lower cover plate 22 and the upper sealing plate 23, the lower sealing plate 24.

[0028] Preferably, a positioning groove 29 is provided in the middle of the upper cover plate 21 and the lower cover plate 22, and a positioning block 291 that is slidably connected to the positioning groove 29 is fixed in the upper sealing plate 23 and the lower sealing plate 24.

[0029] Through the above technical solution, the sliding contact between the positioning block 291 and the positioning groove 29 facilitates the positioning of the upper sealing plate 23 and the lower sealing plate 24, thereby enabling the limiting nut 26 to quickly and effectively align with the first bolt 4 and improve the efficiency of the installation work.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A sealing structure for a corrosion-resistant pump, comprising a pump body, a sealing structure, and a connecting pipe, characterized in that: The flange in the pump body is connected to the flange in the connecting pipe by a first bolt. The sealing structure is installed at the connection between the pump body and the connecting pipe. The sealing mechanism consists of an upper cover plate, a lower cover plate, an upper sealing plate, and a lower sealing plate. The upper cover plate and the lower cover plate are fitted onto the connection between the pump body and the connecting pipe, covering the flange at the connection. The interior of the upper cover plate and the lower cover plate is provided with several hexagonal limiting grooves that match the hexagonal head of the first bolt, and the hexagonal head of the first bolt is embedded in the limiting groove. The upper sealing plate and the lower sealing plate are slidably connected to the upper cover plate and the lower cover plate, respectively. Several limiting nuts that are threadedly connected to the first bolt are rotatably provided in the upper sealing plate and the lower sealing plate, and the limiting nuts abut against the nuts of the first bolt.

2. The sealing structure of a corrosion-resistant pump according to claim 1, characterized in that: The upper cover plate and the lower cover plate are symmetrically provided with connecting ears on both sides, and the upper cover plate and the lower cover plate are fixedly connected by the connecting ears and the second bolt.

3. The sealing structure of a corrosion-resistant pump according to claim 1, characterized in that: The end of the limiting nut connected to the first bolt is the limiting end, located inside the upper and lower sealing plates, while the end of the limiting nut located outside the upper and lower sealing plates is the driving end.

4. The sealing structure of a corrosion-resistant pump according to claim 1, characterized in that: The upper cover plate and the lower cover plate are respectively provided with sealing grooves that match the upper sealing plate and the lower sealing plate on one side of the connection between them, and sealing gaskets are installed in the sealing grooves.

5. The sealing structure of a corrosion-resistant pump according to claim 1, characterized in that: A positioning groove is provided in the middle of the upper cover plate and the lower cover plate, and a positioning block that is slidably connected to the positioning groove is fixed in the upper sealing plate and the lower sealing plate.

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