Locking structure of sealing pump cover

Abstract

The utility model relates to the technical field of sealing pump covers, and provides a locking structure of a sealing pump cover, which aims at solving the problems that in the prior art, a plurality of fastening bolts are manually tightened to fix the pump cover on a pump body, the process of fixing the pump cover is tedious, and the operation of installation personnel is inconvenient, and comprises the pump body, the outer surface of the pump body is sleeved with a threaded sleeve, the threaded sleeve is in threaded connection with the pump body, a plurality of limiting columns are fixedly installed on the circumferential outer surface of an opening of the pump body at equal intervals, and fixing rings are slidably installed on the outer surfaces of the limiting columns. The outer hexagonal block drives the threaded sleeve to rotate, the threaded sleeve drives the fixing ring to move close to the pump body, the fixing ring drives the check block to move close to the pump body through the fixing rod, the check block moves to drive the pump cover to move close to the pump body, and the pump cover seals the opening of the pump body. The sealing performance of the pump cover is ensured while the mounting efficiency of the pump cover is improved.

Description

Technical Field

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

[0002] Centrifugal pumps are a very common type of pump. They work by using the centrifugal force generated by the rotation of an impeller. The pump cover is one of the main components of a centrifugal pump and plays an important role in the operation of the entire centrifugal pump.

[0003] An existing centrifugal pump cover with a locking structure (publication number: CN212643171U) has at least the following drawbacks:

[0004] When using the above patent, the pump cover is first manually inserted into the limiting slot, and then multiple fastening bolts are manually tightened to fix the pump cover to the pump body. The process of fixing the pump cover in the above patent is cumbersome and inconvenient for installers. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that in the existing technology, fixing the pump cover to the pump body by manually tightening multiple fastening bolts is a cumbersome process that is inconvenient for installers. Therefore, a locking structure for sealing the pump cover is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A locking structure for a sealed pump cover includes a pump body. A threaded sleeve is fitted onto the outer surface of the pump body, and the threaded sleeve is threadedly connected to the pump body. Multiple limiting posts are equidistantly fixedly installed on the outer circumference of the pump body opening. A fixing ring is slidably installed on the outer surface of the multiple limiting posts, and the fixing ring is positioned between the threaded sleeve and the pump body. Multiple fixing rods are equidistantly fixedly installed on the square outer surface of the fixing ring. The fixing rods are located on the outer surface of the fixing ring near the pump body opening. A stop is fixedly installed on the end face of each fixing rod away from the fixing ring. A pump cover is installed on the end face of the pump body opening, and a locking assembly is provided on the pump cover. The locking assembly includes components fixedly installed on the outer surface of the threaded sleeve. The outer hexagonal block has multiple through holes equidistantly drilled on its outer circumferential surface, and multiple arc grooves equidistantly drilled on its outer circumferential surface, with one end of each arc groove connected to a through hole. Multiple countersunk holes are equidistantly drilled on the outer circumferential surface of the pump cover on the side away from the pump body, located at the other end of the arc grooves. A threaded sleeve drives a retaining ring closer to the pump body, which in turn drives a stop block closer to the pump body via a fixing rod. The movement of the stop block then drives the pump cover closer to the pump body. Continued rotation of the threaded sleeve seals the opening of the pump body with the pump cover. This device makes the installation of the pump cover onto the pump body simple and easy to operate, convenient for installers.

[0008] As a further embodiment of this utility model, a sealing groove is provided on the outer surface of the pump cover near the pump body. A rubber sealing ring is installed inside the sealing groove. Before use, the installer first installs the rubber sealing ring inside the sealing groove to improve the sealing performance of the pump cover.

[0009] As a further embodiment of this utility model, the outer surface of the fixing ring is provided with multiple limiting grooves that match the limiting posts at equal intervals. The limiting posts and the inner walls of the limiting grooves are slidably installed, and the opening of the pump body can be easily inserted into the interior of the sealing groove through the limiting posts and the limiting grooves.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The external hexagonal block drives the threaded sleeve to rotate, which in turn drives the fixed ring to move closer to the pump body. The fixed ring, through the fixed rod, drives the stop block to move closer to the pump body. The movement of the stop block drives the pump cover to move closer to the pump body. Continuing to rotate the threaded sleeve causes the pump cover to seal the opening of the pump body. The process of installing the pump cover onto the pump body using this device is simple and easy to operate, making it convenient for installers. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a locking structure for a sealing pump cover proposed in this utility model;

[0013] Figure 2 This is a bottom view schematic diagram of the locking structure of a sealing pump cover proposed in this utility model;

[0014] Figure 3 A schematic diagram of the limiting post of the locking structure of the sealing pump cover proposed in this utility model;

[0015] Figure 4 A schematic diagram of the fixing rod of the locking structure of the sealing pump cover proposed in this utility model;

[0016] Figure 5 A schematic diagram of a pump body for a locking structure of a sealed pump cover proposed in this utility model;

[0017] Figure 6 This is a cross-sectional view of a locking structure for a sealing pump cover proposed in this utility model.

[0018] Figure 7 A schematic diagram of a pump cover with a locking structure for a sealing pump cover according to this utility model;

[0019] Figure 8 This is a schematic diagram of the arc groove of a locking structure for a sealing pump cover proposed in this utility model.

[0020] In the diagram: 1. Pump body; 2. Pump cover; 3. Threaded sleeve; 4. External hexagonal block; 5. Retaining ring; 6. Retaining rod; 7. Stop block; 8. Limiting groove; 9. Limiting post; 10. Through hole; 11. Arc groove; 12. Countersunk hole; 13. Sealing groove. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figures 1-8A locking structure for a sealed pump cover includes a pump body 1. A threaded sleeve 3 is fitted onto the outer surface of the pump body 1, and the threaded sleeve 3 is threadedly connected to the pump body 1. Multiple limiting posts 9 are fixedly installed at equal intervals on the outer circumference of the opening of the pump body 1. A fixing ring 5 is slidably installed on the outer surface of the multiple limiting posts 9, and is positioned between the threaded sleeve 3 and the pump body 1. Multiple fixing rods 6 are fixedly installed at equal intervals on the square outer circumference of the fixing ring 5. The fixing rods 6 are located on the outer surface of the fixing ring 5 near the opening of the pump body 1, and the end faces of the multiple fixing rods 6 away from the fixing ring 5 are positioned on the outer surface of the fixing ring 5. All are fixedly installed with a stop block 7. A pump cover 2 is installed on the end face of the opening of the pump body 1. The pump cover 2 is provided with a locking assembly, which includes an external hexagonal block 4 fixedly installed on the outer surface of the threaded sleeve 3. Multiple through holes 10 are equidistantly opened on the outer surface of the pump cover 2 in the circumferential direction. Multiple arc grooves 11 are equidistantly opened on the outer surface of the pump cover 2 in the circumferential direction. One end of the arc groove 11 is connected to the through hole 10. Multiple countersunk holes 12 are equidistantly opened on the outer surface of the pump cover 2 on the side away from the pump body 1 in the circumferential direction. The countersunk holes 12 are located at the other end of the arc groove 11.

[0025] By manually aligning the through hole 10 on the pump cover 2 with the stop block 7, and manually applying force to the pump cover 2, the sealing groove 13 of the pump cover 2 is engaged with the opening of the pump body 1, so that the end face of the opening is in contact with the rubber sealing ring. Then, the operator rotates the pump cover 2, so that the pump cover 2 rotates through the arc groove 11. When the pump cover 2 rotates until the countersunk hole 12 is aligned with the stop block 7, the operator clamps the outer hexagonal block 4 with a hexagonal wrench and manually rotates the hexagonal wrench, so that it drives the threaded sleeve 3 to rotate through the outer hexagonal block 4. The threaded sleeve 3 drives the fixing ring 5 to move closer to the pump body 1, so that the fixing ring 5 drives the stop block 7 to move closer to the pump body 1 through the fixing rod 6. The movement of the stop block 7 drives the pump cover 2 to move closer to the pump body 1. Continue to rotate the threaded sleeve 3 so that the pump cover 2 seals the opening of the pump body 1. The process of installing the pump cover 2 to the pump body 1 using this device is simple and easy to operate, and convenient for installers.

[0026] In this embodiment, a sealing groove 13 is provided on the outer surface of the pump cover 2 near the pump body 1. A rubber sealing ring is installed inside the sealing groove 13. Before use, the installer first installs the rubber sealing ring inside the sealing groove 13 to improve the sealing performance of the pump cover 2.

[0027] In this embodiment, the outer surface of the fixing ring 5 is provided with multiple limiting grooves 8 that match the limiting post 9. The limiting post 9 and the inner wall of the limiting groove 8 are slidably installed. The limiting post 9 and the limiting groove 8 facilitate the opening of the pump body 1 to be inserted into the interior of the sealing groove 13.

[0028] It should be noted that before using this utility model, the installer first installs the rubber sealing ring inside the sealing groove 13 on the pump cover 2. Then, the installer manually aligns the through hole 10 on the pump cover 2 with the stop block 7 and applies force to the pump cover 2 so that the sealing groove 13 of the pump cover 2 is engaged with the opening of the pump body 1, making the end face of the opening fit with the rubber sealing ring. Then, the installer rotates the pump cover 2 so that the pump cover 2 rotates through the arc groove 11. When the pump cover 2 rotates until the countersunk hole 12 is aligned with the stop block 7, the installer clamps the outer hexagonal block 4 with a hexagonal wrench and manually rotates the hexagonal wrench so that it drives the threaded sleeve 3 to rotate through the outer hexagonal block 4. The threaded sleeve 3 drives the fixing ring 5 to move closer to the pump body 1, so that the fixing ring 5 drives the stop block 7 to move closer to the pump body 1 through the fixing rod 6. The movement of the stop block 7 drives the pump cover 2 to move closer to the pump body 1. Continue to rotate the threaded sleeve 3 so that the pump cover 2 seals the opening of the pump body 1. The process of installing the pump cover 2 to the pump body 1 using this device is simple and easy to operate, and convenient for installers.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A locking structure for sealing a pump cover, comprising a pump body (1), characterized in that, The outer surface of the pump body (1) is sleeved with a threaded sleeve (3), the threaded sleeve (3) is threadedly connected with the pump body (1), a plurality of limiting columns (9) are equidistantly and fixedly installed on the outer surface of the opening of the pump body (1), a plurality of fixing rings (5) are slidingly installed on the outer surfaces of the limiting columns (9), the fixing rings (5) are arranged between the threaded sleeve (3) and the pump body (1), a plurality of fixing rods (6) are equidistantly and fixedly installed on the outer surface of the fixing ring (5) on the side close to the opening of the pump body (1), a blocking piece (7) is fixedly installed on the end face of the fixing rod (6) away from the fixing ring (5), a pump cover (2) is installed on the end face of the opening of the pump body (1), and the pump cover (2) is provided with a locking assembly.

2. The locking structure of claim 1, wherein The locking assembly comprises an outer hexagonal block (4) fixedly installed on the outer surface of the threaded sleeve (3), and a plurality of through holes (10) are equidistantly and penetratingly formed in the outer surface of the pump cover (2) in the circumferential direction.

3. The locking structure of claim 2, wherein A plurality of circular arc grooves (11) are equidistantly and penetratingly formed in the outer surface of the pump cover (2) in the circumferential direction, and one end of the circular arc groove (11) is communicated with the through hole (10).

4. The locking structure of claim 2, wherein A plurality of countersunk holes (12) are equidistantly and formed in the outer surface of the pump cover (2) on the side away from the pump body (1) in the circumferential direction, and the countersunk holes (12) are arranged on the other end of the circular arc groove (11).

5. The locking structure of claim 1, wherein A sealing groove (13) is formed in the outer surface of the pump cover (2) on the side close to the pump body (1), and a rubber sealing ring is installed in the sealing groove (13).

6. The locking structure of claim 1, wherein A plurality of limiting grooves (8) matched with the limiting columns (9) are equidistantly and penetratingly formed in the outer surface of the fixing ring (5), and the limiting columns (9) are slidingly installed on the inner walls of the limiting grooves (8).

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