Self-adjusting water pump sealing ring

Abstract

The utility model relates to the technical field of sealing, in particular to a self-adjusting water pump sealing ring which comprises a sealing ring body, a first installation head and a second installation head are arranged at the two ends of the sealing ring body respectively, the first installation head is arranged on a water pump body, and the sealing ring comprises a connecting mechanism and a sealing mechanism. The connecting mechanism comprises first open holes formed in the periphery of the outer side of the first mounting head, one end of a clamping rod is hinged to each first open hole, the other end of each clamping rod is fixedly connected with a supporting plate, a clamping plate is arranged on the outer side of each clamping rod in a sleeved mode, a spring is arranged between each supporting plate and the corresponding clamping plate, and each clamping rod is sleeved with the corresponding spring. The first mounting head and the second mounting head are quickly disassembled and assembled, maintenance and replacement are facilitated, clamping plates can be limited through arrangement of limiting grooves, the clamping plates are prevented from sliding, pressure can be provided for the sealing mechanism, and the sealing mechanism can conveniently provide a self-adaptive sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing, in particular to a water pump sealing ring with self-adjustment. Background Art

[0002] Pump products are one of the important general-purpose mechanical products in various fields of the national economy. Centrifugal pumps are widely used due to their high efficiency and large flow rate. Currently, sealing rings are generally used as seals in centrifugal pumps.

[0003] Long-term flushing of the medium in the water pump can easily cause wear on the sealing ring, causing leakage of the medium. Generally, after the sealing ring is worn, it is necessary to replace the sealing ring in the water pump in time. However, the disassembly and assembly of the sealing ring requires more auxiliary tools, and the disassembly is more complicated, making it difficult to achieve quick disassembly and assembly. Moreover, after the inner wall is worn, it is difficult to provide adaptive compensation and the sealing effect cannot be guaranteed, which greatly increases the frequency of sealing ring replacement and reduces economic benefits.

[0004] The Chinese utility model patent with application number CN202321849887.2 proposes a sealing ring structure for a water pump. By setting the second set of plates on the second set of plates inside the connecting port, and then locking the sliding of the second set of plates with the help of a locking assembly, the sealing ring on the second set of plates can be quickly disassembled and assembled, so that the staff can quickly replace the worn sealing ring on the second set of plates. Therefore, it not only improves the efficiency of the staff in replacing the sealing ring, but also avoids the situation that affects the normal use of the water pump to a certain extent. Although this kind of sealing ring structure for a water pump is easy to replace, it is easy to slide outward and has a poor fixing effect. In addition, the sealing ring is only simply sealed, which is easy to wear and has a poor sealing effect.

[0005] To this end, a water pump sealing ring with self-adjustment is proposed. Utility Model Content

[0006] The utility model aims to provide a water pump sealing ring with self-adjustment, so as to solve the problems of inconvenient disassembly and assembly and poor sealing effect proposed in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water pump sealing ring with self-adjustment, the sealing ring comprising a sealing ring body, a first mounting head and a second mounting head are respectively arranged at two ends of the sealing ring body, the first mounting head is arranged on the water pump body, the sealing ring comprises a connecting mechanism and a sealing mechanism, the connecting mechanism comprises a first opening opened around the outer side of the first mounting head, one end of a clamping rod is hingedly connected to the first opening, a support plate is fixedly connected to the other end of the clamping rod, a clamping plate is sleeved on the outer side of the clamping rod, a spring is arranged between the support plate and the clamping plate, the spring is sleeved on the clamping rod, and a second opening is opened around the outer side of the second mounting head;

[0008] The sealing mechanism includes a compressed air bag fixedly connected to both ends of the sealing ring body. The compressed air bag is arranged in a card slot, and the card slots are respectively opened on the first mounting head and the second mounting head. One side of the compressed air bag is evenly and fixedly connected to one end of several groups of air pipes. The other ends of the several groups of air pipes pass through the sealing ring body and are fixedly connected to the sealing air bag. The sealing air bag is sleeved on the outside of the sealing ring body.

[0009] Preferably, a plurality of groups of first openings are uniformly formed on the outer side of the first mounting head, a plurality of groups of second openings are uniformly formed on the outer side of the second mounting head, and at least two groups of first openings and second openings are provided.

[0010] Preferably, a slide groove is provided inside the clamping rod, a clamp plate is slidably connected inside the slide groove, a pull rod is fixedly connected to the middle of the clamp plate, and the other end of the pull rod passes through the support plate and is fixedly connected to a handle.

[0011] Preferably, the diameter of the clamping rod is equal to the inner diameter of the second opening, and the clamping rod is matched with the second opening.

[0012] Preferably, a limiting groove is provided on one side of the second opening, and the limiting groove is adapted to the clamping plate.

[0013] Preferably, the compression airbag and the sealing airbag are both arranged in a circular ring shape, and a plurality of groups of air delivery pipes are evenly distributed in a circular shape in the sealing ring body.

[0014] Preferably, the sealing airbag is clamped in the positioning groove, the positioning groove is arranged on the outer side of the sealing ring body, and the sealing airbag and the positioning groove are matched.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model designs a connection mechanism to quickly disassemble and assemble the first mounting head and the second mounting head, which is convenient for maintenance and replacement. The limit groove setting can limit the clamping plate to prevent the clamping plate from sliding, and can provide pressure for the sealing mechanism, so that the sealing mechanism provides an adaptive sealing effect.

[0017] 2. The utility model designs a sealing mechanism in conjunction with a connecting mechanism and utilizes the restoring force of the spring as the force for squeezing the compressed airbag, so that the gas in the compressed airbag is transported to the sealed airbag, thereby causing the sealed airbag to expand and squeeze the inner walls of the first mounting head and the second mounting head to provide an adaptive sealing effect, and the gas in the sealed airbag can flow back to the compressed airbag, which is convenient for disassembly, maintenance and replacement, and allows the compressed airbag and the sealed airbag to jointly bear the spring pressure to avoid rupture of the sealed airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an overall three-dimensional schematic diagram of a self-adjusting water pump sealing ring according to an embodiment of the utility model;

[0020] Figure 2 The utility model is a water pump sealing ring with self-adjusting Figure 1 Schematic diagram of the cross-section at AA in the middle;

[0021] Figure 3 The utility model is a water pump sealing ring with self-adjusting Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 4 It is a partial explosion schematic diagram of a water pump sealing ring with self-adjustment according to an embodiment of the utility model.

[0023] The markings in the figure are: 1. Water pump body; 2. First mounting head; 3. Second mounting head; 4. Slot; 5. Sealing ring body; 6. First opening; 7. Clamp rod; 8. Second opening; 9. Support plate; 10. Limiting groove; 11. Slide groove; 12. Clamp plate; 13. Pull rod; 14. Handle; 15. Spring; 16. Compression airbag; 17. Air pipe; 18. Sealing airbag; 19. Positioning groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 4 As shown, a specific embodiment of the utility model provides a water pump sealing ring with self-adjustment, the sealing ring comprises a sealing ring body 5, two ends of the sealing ring body 5 are respectively provided with a first mounting head 2 and a second mounting head 3, the first mounting head 2 is arranged on the water pump body 1, the sealing ring comprises a connecting mechanism and a sealing mechanism, the connecting mechanism comprises a first opening 6 opened around the outer side of the first mounting head 2, the first opening 6 is hinged with one end of a clamping rod 7, the other end of the clamping rod 7 is fixedly connected with a support plate 9, the outer side of the clamping rod 7 is sleeved with a clamping plate 12, a spring 15 is arranged between the clamping plate 9 and the clamping plate 12, the spring 15 is sleeved on the clamping rod 7, the outer side of the second mounting head 3 is provided with a second opening 8 around, specifically, as shown Figure 3 and Figure 4As shown, a plurality of groups of first openings 6 are evenly provided on the outer side of the first mounting head 2, a plurality of groups of second openings 8 are evenly provided on the outer side of the second mounting head 3, at least two groups of first openings 6 and second openings 8 are provided, a slide groove 11 is provided inside the clamping rod 7, a splint 12 is slidably connected inside the slide groove 11, a pull rod 13 is fixedly connected to the middle of the splint 12, the other end of the pull rod 13 passes through the support plate 9 and is fixedly connected to a handle 14, the diameter of the clamping rod 7 is equal to the inner diameter of the second opening 8, the clamping rod 7 is matched with the second opening 8, a limiting groove 10 is provided on one side of the second opening 8, the limiting groove 10 is matched with the splint 12, when in use, first pull the pull handle 14, the pull handle 14 drives the splint in the slide groove 11 through the pull rod 13 12 moves on the outer side of the slide groove 11, so that the clamping plate 12 is close to the support plate 9, thereby reserving enough clamping space on the outer side of the clamping rod 7, and then the clamping rod 7 in the first opening 6 on the outer side of the first mounting head 2 is rotated, so that the clamping rod 7 is clamped in the second opening 8 on the outer side of the second mounting head 3, and finally the pull handle 14 is released. The restoring force of the spring 15 drives the clamping plate 12 to be clamped in the limiting groove 10, so that the first mounting head 2 and the second mounting head 3 are fixedly connected together, which is conducive to the rapid disassembly and assembly of the first mounting head 2 and the second mounting head 3, and is convenient for maintenance and replacement. The limiting groove 10 can be set to limit the clamping plate 12 to prevent the clamping plate 12 from sliding, and can provide pressure for the sealing mechanism, so that the sealing mechanism provides an adaptive sealing effect.

[0027] Specifically, Figure 3 and Figure 4As shown, the sealing mechanism includes a compression airbag 16 fixedly connected to both ends of the sealing ring body 5, the compression airbag 16 is arranged in the card slot 4, and the card slot 4 is respectively opened on the first mounting head 2 and the second mounting head 3, one side of the compression airbag 16 is evenly and fixedly connected with one end of a plurality of groups of air delivery pipes 17, the other end of the plurality of groups of air delivery pipes 17 penetrates the sealing ring body 5 and is fixedly connected with a sealing airbag 18, the sealing airbag 18 is sleeved on the outer side of the sealing ring body 5, the compression airbag 16 and the sealing airbag 18 are both arranged in a circular shape, and the plurality of groups of air delivery pipes 17 are evenly distributed in the sealing ring body 5 in a circular shape, the sealing airbag 18 is clamped in the positioning groove 19, and the positioning groove 19 is opened on the outer side of the sealing ring body 5, the sealing airbag 18 and the positioning groove 19 are adapted, and the restoring force of the spring 15 drives the first mounting head 2 and the second The mounting head 3 compresses the two groups of compressed air bags 16 on the sealing ring body 5, and then the gas in the compressed air bags 16 enters the sealing air bags 18 through the air supply pipe 17. Finally, the two groups of sealing air bags 18 expand and adhere to the inner walls of the first mounting head 2 and the second mounting head 3 respectively, which is beneficial to use the restoring force of the spring 15 as the force to squeeze the compressed air bags 16, so that the gas in the compressed air bags 16 is transported to the sealing air bags 18, so that the sealing air bags 18 expand and squeeze the inner walls of the first mounting head 2 and the second mounting head 3 to provide an adaptive sealing effect, and the gas in the sealing air bags 18 can flow back to the compressed air bags 16, which is convenient for disassembly and maintenance and replacement, and also allows the compressed air bags 16 and the sealing air bags 18 to jointly bear the pressure of the spring 15 to avoid rupture of the sealing air bags 18.

[0028] Working principle: when in use, first pull the handle 14, and the handle 14 drives the clamping plate 12 in the slide groove 11 to move on the outer side of the slide groove 11 through the pull rod 13, so that the clamping plate 12 is close to the support plate 9, thereby reserving enough clamping space on the outer side of the clamping rod 7, and then rotate the clamping rod 7 in the first opening 6 on the outer side of the first mounting head 2, so that the clamping rod 7 is clamped in the second opening 8 on the outer side of the second mounting head 3, and finally release the handle 14, and the restoring force of the spring 15 drives the clamping plate 12 to be clamped in the limiting groove 10, so that the first mounting head 2 and the second mounting head 3 are fixedly connected together, which is conducive to the rapid disassembly and assembly of the first mounting head 2 and the second mounting head 3, and is convenient for maintenance and replacement. The clamping plate 12 can be restricted by the setting of the limiting groove 10 to prevent the clamping plate 12 from sliding, and pressure can be provided for the sealing mechanism, so that the sealing mechanism provides an adaptive sealing effect;

[0029] The restoring force of the spring 15 drives the first mounting head 2 and the second mounting head 3 to compress the two groups of compressed air bags 16 on the sealing ring body 5, and then the gas in the compressed air bags 16 enters the sealing air bags 18 through the air supply pipe 17. Finally, the two groups of sealing air bags 18 expand and are respectively tightly attached to the inner walls of the first mounting head 2 and the second mounting head 3. This is beneficial to use the restoring force of the spring 15 as the force to squeeze the compressed air bags 16, so that the gas in the compressed air bags 16 is transported to the sealing air bags 18, so that the sealing air bags 18 expand and squeeze the inner walls of the first mounting head 2 and the second mounting head 3 to provide an adaptive sealing effect, and the gas in the sealing air bags 18 can flow back to the compressed air bags 16, which is convenient for disassembly and maintenance and replacement, and also allows the compressed air bags 16 and the sealing air bags 18 to jointly bear the pressure of the spring 15 to avoid rupture of the sealing air bags 18.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A water pump sealing ring with self-adjustment, the sealing ring comprising a sealing ring body (5), the two ends of the sealing ring body (5) are respectively provided with a first mounting head (2) and a second mounting head (3), the first mounting head (2) is arranged on the water pump body (1), characterized in that: The sealing ring comprises a connecting mechanism and a sealing mechanism, wherein the connecting mechanism comprises a first opening (6) provided around the outer side of the first mounting head (2), one end of a clamping rod (7) being hingedly connected to the first opening (6), the other end of the clamping rod (7) being fixedly connected to a support plate (9), a clamping plate (12) being sleeved on the outer side of the clamping rod (7), a spring (15) being provided between the support plate (9) and the clamping plate (12), the spring (15) being sleeved on the clamping rod (7), and a second opening (8) being provided around the outer side of the second mounting head (3); The sealing mechanism comprises a compression airbag (16) fixedly connected to both ends of the sealing ring body (5); the compression airbag (16) is arranged in a card slot (4); the card slot (4) is respectively provided on the first mounting head (2) and the second mounting head (3); one side of the compression airbag (16) is evenly and fixedly connected to one end of a plurality of groups of air supply pipes (17); the other ends of the plurality of groups of air supply pipes (17) penetrate the sealing ring body (5) and are fixedly connected to a sealing airbag (18); the sealing airbag (18) is sleeved on the outer side of the sealing ring body (5).

2. A self-adjusting water pump sealing ring according to claim 1, characterized in that: The outer side of the first mounting head (2) is evenly provided with a plurality of groups of first openings (6), and the outer side of the second mounting head (3) is evenly provided with a plurality of groups of second openings (8), and at least two groups of the first openings (6) and the second openings (8) are provided.

3. A self-adjusting water pump sealing ring according to claim 1, characterized in that: A slide groove (11) is provided inside the clamping rod (7), a clamp plate (12) is slidably connected inside the slide groove (11), a pull rod (13) is fixedly connected to the middle of the clamp plate (12), and the other end of the pull rod (13) passes through the support plate (9) and is fixedly connected to a handle (14).

4. A self-adjusting water pump sealing ring according to claim 1, characterized in that: The diameter of the clamping rod (7) is equal to the inner diameter of the second opening (8), and the clamping rod (7) is compatible with the second opening (8).

5. The self-adjusting water pump sealing ring according to claim 1, characterized in that: A limiting groove (10) is provided on one side of the second opening (8), and the limiting groove (10) is adapted to fit the clamping plate (12).

6. A self-adjusting water pump sealing ring according to claim 1, characterized in that: The compression airbag (16) and the sealing airbag (18) are both arranged in a circular ring shape, and a plurality of groups of air delivery pipes (17) are evenly distributed in a circular shape inside the sealing ring body (5).

7. A self-adjusting water pump sealing ring according to claim 1, characterized in that: The sealing airbag (18) is clamped in a positioning groove (19), and the positioning groove (19) is arranged on the outside of the sealing ring body (5), and the sealing airbag (18) and the positioning groove (19) are matched.

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