Marine pump shell sealing mechanism

Abstract

The utility model relates to the technical field of marine pump shells, in particular to a marine pump shell sealing mechanism which comprises a motor, the end of the motor is fixedly connected with a pump cover, an output shaft of the motor is fixedly connected with an impeller, the pump cover is provided with a pump body through a sealing structure, the pump cover is rotationally connected with a rotating ring, and the rotating ring is fixedly connected with the motor. Three fixing blocks are arranged on the rotating ring, three connecting blocks are fixedly connected to the pump body, the fixing blocks are clamped with the corresponding connecting blocks, two first grooves are formed in the pump cover, two second grooves are formed in the pump body, and rubber rings are clamped between the first grooves and the corresponding second grooves. A mounting structure is mounted at the bottom end of the motor; the fixing block on the rotating ring is clamped with the connecting block on the pump body, so that the pump cover and the pump body extrude towards the middle at the same time, the pump cover and the pump body abut against the rubber ring, and the sealing effect of the centrifugal pump is improved.

Description

Technical Field

[0001] The utility model relates to a marine pump housing, specifically a sealing mechanism for a marine pump housing, belonging to the technical field of marine pump housings. Background Technique

[0002] Marine pumps refer to various pumps that meet the requirements of ship specifications and marine technical conditions for use on ships. They are widely used on ships and are mainly used to transport various liquids such as seawater, fresh water, sewage, lubricating oil, and fuel oil, including fuel pumps, lubricating oil pumps, seawater pumps, fresh water pumps, ballast pumps, fire pumps, centrifugal pumps, etc. Among them, the centrifugal pump is a common type of pump in marine pumps. A centrifugal pump is a pump that transports liquids by the centrifugal force generated when the impeller rotates. To achieve a sealing effect, a rubber ring is installed between the pump body and the pump cover.

[0003] However, in traditional centrifugal pumps, the pump body and the pump cover are usually fixedly connected by bolts. The use of threaded connections makes the installation and disassembly relatively cumbersome, and the pump body does not tightly contact the rubber ring, resulting in a poor sealing effect of the centrifugal pump and affecting the use effect of the centrifugal pump. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sealing mechanism for a marine pump housing to solve the above problems. By engaging the fixing blocks on the rotating ring with the connecting blocks on the pump body, the pump cover and the pump body are simultaneously squeezed towards the middle, so that the pump cover and the pump body tightly press against the rubber ring, thereby improving the sealing effect of the centrifugal pump.

[0005] The utility model realizes the above purpose through the following technical solutions. A sealing mechanism for a marine pump housing includes a motor. The end of the motor is fixedly connected with a pump cover. The output shaft of the motor is fixedly connected with an impeller. The pump cover is installed with a pump body through a sealing structure. The sealing structure includes a rotating ring. The rotating ring is rotatably connected to the pump cover. There are three fixing blocks on the rotating ring. There are three connecting blocks fixedly connected to the pump body. The fixing blocks are engaged with the corresponding connecting blocks. There are two first grooves opened on the pump cover. There are two second grooves opened on the pump body. A rubber ring is engaged between the first groove and the corresponding second groove. An installation structure is installed at the bottom end of the motor.

[0006] The further setting of the utility model is that a bolt is rotatably connected to the rotating ring, and the end of the bolt is threadedly connected to the pump cover.

[0007] The further setting of the utility model is that the cross-section of the pump cover is in an "L" - shaped structure, and the cross-section of the rotating ring is in an "L" - shaped structure.

[0008] A further setting of the present utility model is that the fixing block has an "L" - shaped structure, both ends of the connecting block are provided with inclined surface structures, and the cross - sections of the first groove and the second groove are both semi - circular structures.

[0009] A further setting of the present utility model is that three positioning columns are fixedly connected to the pump cover, three positioning grooves are formed on the pump body, and the positioning columns are engaged with the corresponding positioning grooves.

[0010] A further setting of the present utility model is that the bottom end of the motor is fixedly connected with a second mounting seat, the second mounting seat is fixedly connected with an installation structure, the installation structure includes a connecting plate, the bottom end of the second mounting seat is fixedly connected with a connecting plate, and the bottom end of the connecting plate is fixedly connected with a bottom plate.

[0011] A further setting of the present utility model is that one end of the bottom plate facing the pump body is fixedly connected with a "T" - shaped rotating shaft, a sliding plate is rotatably connected to the rotating shaft, a waist - shaped groove is formed on the sliding plate, the rotating shaft penetrates through the waist - shaped groove, a first mounting seat is installed on the sliding plate, and the first mounting seat is fixedly connected to the bottom end of the pump body.

[0012] A further setting of the present utility model is that a clamping block is slidably connected to the sliding plate, two clamping grooves are formed on the bottom plate, and the clamping block is engaged with the corresponding clamping groove.

[0013] A further setting of the present utility model is that the clamping block has an "L" - shaped structure, and a tension spring is fixedly connected between the clamping block and the sliding plate.

[0014] The beneficial effect of the present utility model is as follows: The end of the motor is fixedly connected with a pump cover, the output shaft of the motor is fixedly connected with an impeller, the pump cover is installed with a pump body through a sealing structure, a rotating ring is rotatably connected to the pump cover, three fixing blocks are provided on the rotating ring, three connecting blocks are fixedly connected to the pump body, the fixing blocks are engaged with the corresponding connecting blocks, two first grooves are formed on the pump cover, two second grooves are formed on the pump body, and a rubber ring is engaged between the first groove and the corresponding second groove; The rubber ring is engaged into the first groove on the pump cover, then the pump body is moved towards the pump cover direction, so that the second groove is engaged with the rubber ring, and then the rotating ring is rotated. The rotating ring drives the fixing block to rotate, so that the fixing block and the connecting block are gradually engaged. Since the two ends of the connecting block are provided with inclined surface structures, the two ends of the connecting block are thin in the middle and thick, so that when the fixing block and the connecting block are engaged, the pump cover and the pump body are driven to squeeze towards the middle, thereby making the pump cover and the pump body press against the rubber ring tightly, and further improving the sealing effect of the centrifugal pump. Brief Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2Schematic diagram of the connection structure between the motor and the pump cover of the present utility model;

[0017] Figure 3 Schematic diagram of the connection structure between the pump cover and the swivel ring of the present utility model;

[0018] Figure 4 is Figure 3 Schematic diagram of the enlarged structure of part A shown in;

[0019] Figure 5 Schematic diagram of the connection structure between the pump body and the pump cover of the present utility model;

[0020] Figure 6 Schematic diagram of the connection structure between the fixing block and the swivel ring of the present utility model;

[0021] Figure 7 is Figure 6 Schematic diagram of the enlarged structure of part B shown in;

[0022] Figure 8 Schematic diagram of the connection structure between the clamping block and the clamping groove of the present utility model.

[0023] In the figure: 1, motor; 2, pump cover; 3, pump body; 4, positioning column; 5, positioning groove; 6, sealing structure; 601, swivel ring; 602, fixing block; 603, connecting block; 604, bolt; 605, first groove; 606, second groove; 607, rubber ring; 7, mounting structure; 701, bottom plate; 702, connecting plate; 703, rotating shaft; 704, sliding plate; 705, waist-shaped groove; 706, clamping block; 707, clamping groove; 708, tension spring; 8, impeller; 9, first mounting seat; 10, second mounting seat. Detailed implementation manners

[0024] The technical solutions of the present utility model will be further described below in conjunction with the drawings and through specific implementation manners. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the attached drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Please refer to Figure 1-8 As shown, a marine pump housing sealing mechanism includes a motor 1. One end of the motor 1 is fixedly connected to a pump cover 2. The output shaft of the motor 1 is fixedly connected to an impeller 8. The pump cover 2 is installed with a pump body 3 through a sealing structure 6. The sealing structure 6 includes a rotating ring 601. The rotating ring 601 is rotatably connected to the pump cover 2. There are three fixing blocks 602 on the rotating ring 601. There are three connecting blocks 603 fixedly connected to the pump body 3. The fixing blocks 602 are engaged with the corresponding connecting blocks 603. There are two first grooves 605 opened on the pump cover 2. There are two second grooves 606 opened on the pump body 3. A rubber ring 607 is engaged between the first groove 605 and the corresponding second groove 606. The cross-section of the pump cover 2 is in an "L" shape structure. The cross-section of the rotating ring 601 is in an "L" shape structure. An installation structure 7 is installed at the bottom end of the motor 1; when the fixing blocks 602 are engaged with the connecting blocks 603, it drives the pump cover 2 and the pump body 3 to simultaneously squeeze towards the middle, so that the pump cover 2 and the pump body 3 are pressed against the rubber ring 607, thereby improving the sealing effect of the centrifugal pump and making the use effect of the centrifugal pump better.

[0027] As a technical optimization scheme of the present utility model, a bolt 604 is rotatably connected to the rotating ring 601. The end of the bolt 604 is threadedly connected to the pump cover 2; after the fixing blocks 602 and the connecting blocks 603 are completely engaged, the bolt 604 passes through the rotating ring 601 and its end is threadedly connected to the pump cover 2 to fix the rotating ring 601, thereby further fixing the pump cover 2 and the pump body 3 and increasing the firmness of the connection between the pump cover 2 and the pump body 3.

[0028] As a technical optimization scheme of the present utility model, the fixing block 602 is in an "L" shape structure. Both ends of the connecting block 603 are provided with inclined surface structures. The cross-sections of the first groove 605 and the second groove 606 are both in a semi-circular shape structure; since both ends of the connecting block 603 are provided with inclined surface structures, both ends of the connecting block 603 are thin in the middle and thick, making the engagement between the fixing block 602 and the connecting block 603 tighter.

[0029] As a technical optimization solution of the present utility model, three positioning posts 4 are fixedly connected to the pump cover 2, and three positioning grooves 5 are formed on the pump body 3. The positioning posts 4 are engaged with the corresponding positioning grooves 5, quickly positioning the pump body 3 and initially connecting the pump body 3 to the pump cover 2.

[0030] As a technical optimization solution of the present utility model, a second mounting seat 10 is fixedly connected to the bottom end of the motor 1. The second mounting seat 10 is fixedly connected to the mounting structure 7. The mounting structure 7 includes a connecting plate 702. The bottom end of the second mounting seat 10 is fixedly connected to the connecting plate 702, and the bottom end of the connecting plate 702 is fixedly connected to a bottom plate 701, facilitating the installation of the motor 1 through the mounting structure 7.

[0031] As a technical optimization solution of the present utility model, a "T"-shaped rotating shaft 703 is fixedly connected to one end of the bottom plate 701 facing the pump body 3. A sliding plate 704 is rotatably connected to the rotating shaft 703. A waist-shaped groove 705 is formed on the sliding plate 704. The rotating shaft 703 penetrates through the waist-shaped groove 705. A first mounting seat 9 is installed on the sliding plate 704, and the first mounting seat 9 is fixedly connected to the bottom end of the pump body 3, facilitating the sliding of the pump body 3 driven by the sliding plate 704. During maintenance, it is not necessary to disassemble the pump body 3 from the bottom plate 701, making the maintenance work more flexible and convenient.

[0032] As a technical optimization solution of the present utility model, a clamping block 706 is slidably connected to the sliding plate 704. Two clamping grooves 707 are formed on the bottom plate 701. The clamping block 706 is engaged with the corresponding clamping groove 707. The clamping block 706 has an "L" - shaped structure, and a tension spring 708 is fixedly connected between the clamping block 706 and the sliding plate 704, limiting the sliding plate 704 through the clamping block 706 and increasing the stability of the sliding plate 704.

[0033] When the utility model is in use, first fixedly connect the pump cover 2 to the output end of the motor 1, then install the impeller 8 on the output shaft of the motor 1, and then snap two rubber rings 607 into two first grooves 605 on the pump cover 2 respectively. Then align the positioning groove 5 on the pump body 3 with the positioning post 4 on the pump cover 2, and move the pump body 3 towards the pump cover 2 to engage the positioning post 4 with the positioning groove 5, so that the pump body 3 is preliminarily fixed on the pump cover 2. At this time, the second groove 606 abuts against the rubber ring 607 towards the pump cover 2. Then rotate the rotating ring 601, and the rotating ring 601 drives the fixing block 602 to move towards the connecting block 603. Continuously rotate the rotating ring 601 to gradually engage the fixing block 602 with the connecting block 603. Since the two ends of the connecting block 603 are provided with inclined surface structures, the two ends of the connecting block 603 are thin in the middle and thick at both ends. Therefore, when the fixing block 602 engages with the connecting block 603, it drives the pump cover 2 and the pump body 3 to squeeze towards the middle at the same time, and further makes the pump cover 2 and the pump body 3 press tightly against the rubber ring 607. After the fixing block 602 is completely engaged with the connecting block 603, pass the bolt 604 through the rotating ring 601 and thread the end thereof to the pump cover 2 to fix the rotating ring 601, so that the pump cover 2 and the pump body 3 are further fixed, increasing the firmness of the connection between the pump cover 2 and the pump body 3, and further improving the sealing effect of the centrifugal pump, making the use effect of the centrifugal pump better; when the internal components of the centrifugal pump are damaged and need to be repaired, release the fixation of the sealing structure 6 on the pump body 3, and then pull up the clamping block 706 to make the clamping block 706 slide out of the clamping groove 707. At the same time, the clamping block 706 drives the tension spring 708 to elongate. Then pull the pump body 3 in the direction away from the pump cover 2, and the pump body 3 drives the sliding plate 704 to slide through the first mounting seat 9. At this time, the waist-shaped groove 705 cooperates with the rotating shaft 703 to slide. When the sliding plate 704 slides to the position where the clamping block 706 corresponds to another clamping groove 707, the tension spring 708 resets, and the tension spring 708 drives the clamping block 706 to engage into the clamping groove 707, so that the sliding plate 704 can no longer move, thus facilitating the quick separation of the pump body 3 and the pump cover 2, expanding the operation space and facilitating maintenance. When it is necessary to further increase the distance between the pump body 3 and the pump cover 2, release the limit of the clamping block 706 on the sliding plate 704, and then rotate the sliding plate 704 around the rotating shaft 703, so that the pump body 3 no longer blocks the pump cover 2, making the operation space more open, and the pump body 3 does not need to be disassembled from the bottom plate 701 during the operation, making the maintenance work more convenient and flexible.

[0034] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the utility model.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A marine pump housing sealing mechanism, comprising a motor (1), characterized in that: The end of the motor (1) is fixedly connected to a pump cover (2), the output shaft of the motor (1) is fixedly connected to an impeller (8), the pump cover (2) is mounted on a pump body (3) via a sealing structure (6), the sealing structure (6) comprises a swivel (601), the pump cover (2) is rotatably connected to a swivel (601), the swivel (601) is provided with three fixing blocks (602), the pump body (3) is fixedly connected to three connecting blocks (603), the fixing blocks (602) are engaged with corresponding connecting blocks (603), the pump cover (2) is provided with two first grooves (605), the pump body (3) is provided with two second grooves (606), a rubber ring (607) is engaged between the first groove (605) and the corresponding second groove (606), and a mounting structure (7) is mounted at the bottom end of the motor (1).

2. The marine pump casing sealing mechanism according to claim 1, characterized in that: A bolt (604) is rotatably connected to the rotating ring (601), and an end of the bolt (604) is threadedly connected to the pump cover (2).

3. The marine pump casing sealing mechanism according to claim 2, characterized in that: The cross section of the pump cover (2) is in an "L"-shaped structure, and the cross section of the rotating ring (601) is in an "L"-shaped structure.

4. The marine pump casing sealing mechanism according to claim 1, characterized in that: The fixing block (602) is in an "L"-shaped structure, both ends of the connecting block (603) are provided with inclined surface structures, and the cross-sections of the first groove (605) and the second groove (606) are both in a semicircular structure.

5. The marine pump casing sealing mechanism according to claim 3, characterized in that: The pump cover (2) is fixedly connected with three positioning columns (4), the pump body (3) is provided with three positioning grooves (5), and the positioning columns (4) are engaged with corresponding positioning grooves (5).

6. The marine pump casing sealing mechanism according to claim 1, characterized in that: The bottom end of the motor (1) is fixedly connected to a second mounting seat (10), the second mounting seat (10) is fixedly connected to a mounting structure (7), the mounting structure (7) comprises a connecting plate (702), the bottom end of the second mounting seat (10) is fixedly connected to a connecting plate (702), and the bottom end of the connecting plate (702) is fixedly connected to a bottom plate (701).

7. The marine pump casing sealing mechanism according to claim 6, characterized in that: A rotating shaft (703) with a "T"-shaped structure is fixedly connected to one end of the bottom plate (701) facing the pump body (3); a slide plate (704) is rotatably connected to the rotating shaft (703); a waist-shaped groove (705) is provided on the slide plate (704); the rotating shaft (703) passes through the waist-shaped groove (705); a first mounting seat (9) is installed on the slide plate (704); and the first mounting seat (9) is fixedly connected to the bottom end of the pump body (3).

8. The marine pump casing sealing mechanism according to claim 7, characterized in that: The slide plate (704) is slidably connected with a clamping block (706), and the bottom plate (701) is provided with two clamping slots (707), and the clamping block (706) is clamped with the corresponding clamping slots (707).

9. The marine pump casing sealing mechanism according to claim 8, characterized in that: The clamping block (706) is in an "L"-shaped structure, and a tension spring (708) is fixedly connected between the clamping block (706) and the slide plate (704).

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