Sealing ring of ultrahigh pressure pump valve

Abstract

The utility model provides an ultrahigh pressure pump valve sealing ring which comprises first sealing rings, a sealing ring and a telescopic piece, the two first sealing rings are symmetrically arranged, grooves are formed in the sides, close to each other, of the two first sealing rings, the two first sealing rings are connected through the telescopic piece, and two rubber plates are arranged between the two first sealing rings and located in the grooves. By arranging the adjusting mechanism, after the fixed ring assembly is installed, the two first sealing rings get close to each other along the telescopic piece through the adjusting mechanism, so that the two sealing rings can be extruded, the abutting force between the two sealing rings and the pump shell and the abutting force between the two sealing rings and the discharging pipe are increased, and the positioning effect on the fixed ring assembly is improved; therefore, when the rotating shaft of the pump body rotates to drive the spring and the second sealing ring to rotate through the fixed sealing ring, the situation that the fixed ring assembly is driven in the pump shell is effectively avoided, the situation that the fixed ring assembly is abraded is effectively reduced, and the sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing ring technical field, concretely relates to a kind of ultrahigh pressure pump valve sealing rings. BACKGROUND

[0002] Mechanical seal is also called end face seal, which is a device for preventing liquid leakage by at least one pair of end faces perpendicular to the rotation axis under the action of fluid pressure and elastic force compensation mechanism and the cooperation of auxiliary seal, and mechanical seal is widely used in the sealing of centrifugal pump for conveying various liquids;

[0003] For example, the drawings in the specification Figure 5 Among them, the internal structure diagram of a kind of ultrahigh pressure pump valve sealing ring in prior art is shown, sealing ring one and sealing ring, two The sealing ring one is symmetrically laid out, and recess is formed on the side of two sealing ring one close to each other, rubber plate is fixedly connected on two sealing ring one and located in recess, sealing ring is integrally formed on the outer side wall of rubber plate, the two sides of sealing ring are respectively in abutment with two sealing ring one, the side of two sealing ring far away from each other is flush with the outer side wall and the inner side wall of sealing ring one, further include fixed sealing ring, the side of fixed sealing ring is fixedly connected with spring, the other end of spring is fixedly connected with sealing ring two which can be in abutment with one of sealing ring one, one The annular sealing block is fixedly installed on the inner side of the threaded rod of one of the sealing ring one, the side of the sealing ring two far away from the spring is provided with annular sealing groove, the annular sealing block can be inserted into the annular sealing groove and the cross section between the sealing ring two is in abutment, when installing, the fixed sealing ring is fixedly sleeved on the rotating shaft of pump body, then the fixed ring assembly formed by two sealing ring one, rubber plate and sealing ring is assembled in pump shell and sleeved on the outside of discharge pipe, so that the annular sealing block is inserted into the annular sealing groove and the cross section between the sealing ring two is in abutment, when the pump body works, the rotating shaft of pump body rotates, the spring and sealing ring two are driven to rotate by fixed sealing ring, during which, the sealing ring two is tightly attached to the end face of fixed ring assembly under the action of fluid pressure and spring force, so as to form very small axial gap, to achieve sealing effect, but in actual use, there are still the following defects:

[0004] At present, after the installation of fixed ring assembly, although the outer side wall and the inner side wall of movable ring assembly are respectively in abutment with pump shell and discharge pipe, the sealing effect between pump shell and discharge pipe is realized, but when the rotating shaft of pump body rotates and drives the spring and sealing ring two to rotate through fixed sealing ring, the driven condition of fixed ring assembly in pump shell is easily caused, so as to easily cause the abrasion of fixed ring assembly, thereby reducing the sealing effect, and there is defect;

[0005] Therefore, the application provides a kind of ultrahigh pressure pump valve sealing ring. UTILITY MODEL CONTENTS

[0006] To address the shortcomings of existing technologies, this utility model provides an ultra-high pressure pump valve sealing ring, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A sealing ring for an ultra-high pressure pump valve includes a sealing ring 1, a sealing ring and a telescopic component. The two sealing ring 1s are symmetrically arranged, and grooves are formed on the sides of the two sealing ring 1s that are close to each other. The two sealing ring 1s are connected by the telescopic component. Two rubber plates are provided between the two sealing ring 1s and in the groove. The two rubber plates are respectively attached to the inner walls of the two sides of the groove. A sealing ring is integrally formed on the side of the two rubber plates that are far from each other. The two sides of the sealing ring are respectively in contact with the two sealing ring 1s. The side of the two sealing rings that are far from each other is flush with the outer and inner walls of the sealing ring 1s, respectively.

[0009] An adjustment mechanism is connected between the two sealing rings, which is used to move the two sealing rings closer to each other or further apart along the telescopic member. It also includes a fixed sealing ring, one side of which is fixedly connected to a spring, and the other end of the spring is fixedly connected to a sealing ring that can abut against one of the sealing rings.

[0010] Furthermore: the telescopic component includes a housing fixedly installed on one of the sealing rings and located within a groove, with a telescopic rod movably passing through the end of the housing, and the end of the telescopic rod being fixedly connected to the other of the sealing rings.

[0011] Furthermore: the adjustment mechanism includes a connecting shell fixedly installed on one of the sealing rings and located in the groove, the end of the connecting shell is threaded with a threaded rod, the threaded rod is rotatably connected to the other sealing ring, the end of the threaded rod is flush with the outer wall of the sealing ring, and the axial direction of the threaded rod is parallel to that of the telescopic rod.

[0012] Furthermore, a limiting mechanism is installed between the two sealing rings and within the groove to limit the movement of the two rubber plates.

[0013] Furthermore: the limiting mechanism includes two annular limiting shells, both fixedly mounted on the sealing ring and located in the groove. The two annular limiting shells are respectively attached to the sides of the two rubber plates that are close to each other. The ends of the annular limiting shells are movably connected to an annular extension plate that is fixedly connected to the other sealing ring.

[0014] Furthermore, the two ends of the rubber sheet are respectively inserted into two grooves.

[0015] Furthermore: an annular sealing block is fixedly installed on one of the sealing rings and located inside the threaded rod; an annular sealing groove is opened on the side of the sealing ring away from the spring; the annular sealing block can be inserted into the annular sealing groove and fits with the cross section of the sealing ring.

[0016] This invention provides a sealing ring for an ultra-high pressure pump valve. Compared with the prior art, it has the following advantages:

[0017] 1. By setting an adjustment mechanism, after the fixed ring assembly is installed, the two sealing rings are brought closer together along the telescopic part through the adjustment mechanism, which can compress the two sealing rings, increase the contact force between the two sealing rings and the pump casing and the discharge pipe, and increase the positioning effect of the fixed ring assembly. This effectively prevents the fixed ring assembly from being driven by the fixed sealing ring when the pump body shaft rotates through the fixed sealing ring to drive the spring and the second sealing ring to rotate, thus effectively reducing the wear of the fixed ring assembly and improving the sealing effect.

[0018] 2. By setting a limiting mechanism, the two rubber plates are limited, thereby effectively preventing the two sealing rings from being squeezed. The limiting effect of the rubber plates on the sealing rings is conducive to the sealing rings extending to the outside of the two sealing rings.

[0019] 3. By setting both ends of the rubber sheet to be inserted into two grooves respectively, it is easy to install and remove the rubber sheet, thus facilitating the removal and replacement of the rubber sheet. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0022] Figure 2 A schematic diagram of the internal structure of this utility model is shown;

[0023] Figure 3 This utility model illustrates Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This utility model illustrates Figure 2 Enlarged view of point B in the middle;

[0025] Figure 5A schematic diagram of the internal structure of a sealing ring for an ultra-high pressure pump valve in the prior art is shown;

[0026] The figure shows: 1. Sealing ring one; 11. Groove; 12. Rubber plate; 2. Sealing ring; 3. Telescopic component; 31. Housing; 32. Telescopic rod; 4. Adjustment mechanism; 41. Connecting shell; 42. Threaded rod; 5. Fixed sealing ring; 51. Spring; 52. Sealing ring two; 521. Annular sealing groove; 6. Limiting mechanism; 61. Annular limiting shell; 62. Annular extension plate; 7. Annular sealing block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example 1

[0029] To address the technical problems in the background section, the following ultra-high pressure pump valve sealing ring is provided:

[0030] Combination Figures 1-4 As shown, the present invention provides an ultra-high pressure pump valve sealing ring, including a sealing ring 1, a sealing ring 2, and a telescopic component 3. The two sealing rings 1 are symmetrically arranged, and a groove 11 is provided on the side of the two sealing rings 1 that is close to each other. The two sealing rings 1 are connected by the telescopic component 3. Two rubber plates 12 are provided between the two sealing rings 1 and in the groove 11. The two rubber plates 12 are respectively attached to the inner walls of the two sides of the groove 11. A sealing ring 2 is integrally formed on the side of the two rubber plates 12 that is far from each other. The sealing ring 2 is made of rubber ring. The two sides of the sealing ring 2 abut against the two sealing rings 1 respectively. The side of the two sealing rings 2 that is far from each other is flush with the outer and inner walls of the sealing ring 1 respectively.

[0031] An adjustment mechanism 4 is connected between the two sealing rings 1, which is used to move the two sealing rings 1 closer to each other or further apart along the telescopic member 3. It also includes a fixed sealing ring 5, on one side of which a spring 51 is fixedly connected, and on the other end of the spring 51 a sealing ring 2 52 that can abut against one of the sealing rings 1.

[0032] During installation, the fixed sealing ring 5 is fixedly sleeved on the rotating shaft of the pump body. Then, the fixed ring assembly formed by the two sealing rings 1, the rubber plate 12, and the sealing ring 2 is assembled inside the pump casing and sleeved outside the discharge pipe, so that the annular sealing block 7 is inserted into the annular sealing groove 521 and fits against the cross section of the sealing ring 52. When the pump body is working, the rotating shaft of the pump body rotates, which drives the spring 51 and the sealing ring 52 to rotate through the fixed sealing ring 5. During this period, the sealing ring 52 fits tightly against the end face of the fixed ring assembly under the action of fluid pressure and the elastic force of the spring 51, thereby forming a very small axial gap and achieving a sealing effect. By setting the adjustment mechanism 4, the two sealing rings can be adjusted. 1. When the fixed ring assembly formed by the rubber plate 12 and the sealing ring 2 is assembled inside the pump casing and sleeved outside the discharge pipe, the two sealing rings 1 are brought closer to each other along the telescopic member 3 by the adjusting mechanism 4, thereby compressing the two sealing rings 2. This causes the two sealing rings 2 to extend outward from the two sealing rings 1, increasing the contact force between the two sealing rings 2 and the pump casing and the discharge pipe. This enhances the positioning effect of the fixed ring assembly, effectively preventing the fixed ring assembly from being driven by the fixed sealing ring 5 when the pump shaft rotates and drives the spring 51 and the second sealing ring 52 to rotate. This effectively reduces the wear of the fixed ring assembly and improves the sealing effect.

[0033] Example 2

[0034] like Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0035] In this embodiment, the telescopic component 3 includes a housing 31 fixedly installed on one of the sealing rings 1 and located in the groove 11. A telescopic rod 32 is movably passed through the end of the housing 31. The end of the telescopic rod 32 is fixedly connected to the other sealing ring 1. In use, the two sealing rings 1 are moved closer or further apart along the telescopic component 3 by the adjustment mechanism 4. The telescopic rod 32 slides along the housing 31 to the inside or outside of the housing 31 to achieve a guiding effect between the two sealing rings 1.

[0036] In this embodiment, the adjusting mechanism 4 includes a connecting shell 41 fixedly installed on one of the sealing rings 1 and located in the groove 11. A threaded rod 42 is threaded through the end of the connecting shell 41. The threaded rod 42 is rotatably connected to the other sealing ring 1. The end of the threaded rod 42 is flush with the outer wall of the sealing ring 1. The threaded rod 42 is parallel to the axial direction of the telescopic rod 32. In use, a rotational force is applied to the threaded rod 42 to make it rotate on the sealing ring 1, thereby allowing the threaded rod 42 to move spirally along the connecting shell 41. This allows the two sealing rings 1 to move closer or further apart along the telescopic member 3, making the operation simple.

[0037] In this embodiment, a limiting mechanism 6 is installed between the two sealing rings 1 and within the groove 11. The limiting mechanism 6 limits the two rubber plates 12. By setting the limiting mechanism 6, the two rubber plates 12 are limited, thereby effectively preventing the two sealing rings 2 from being squeezed. The limiting effect of the rubber plates 12 on the sealing rings 2 is beneficial for the sealing rings 2 to extend to the outside of the two sealing rings 1.

[0038] Example 3

[0039] like Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0040] In this embodiment, the limiting mechanism 6 includes two annular limiting shells 61, both fixedly mounted on the sealing ring 1 and located in the groove 11. The two annular limiting shells 61 are respectively attached to the side of the two rubber plates 12 that are close to each other. The end of the annular limiting shell 61 is movably connected to an annular extension plate 62 that is fixedly connected to another sealing ring 1. When the two sealing rings 1 are close to each other or far apart along the telescopic member 3, the annular extension plate 62 slides into or out of the annular limiting shell 61. The two annular limiting shells 61 are respectively attached to the side of the two rubber plates 12 that are close to each other, thereby achieving the limiting effect on the two rubber plates 12.

[0041] In this embodiment, the two ends of the rubber sheet 12 are respectively inserted into the two grooves 11. By setting the two ends of the rubber sheet 12 to be respectively inserted into the two grooves 11, it is convenient to install and remove the rubber sheet 12, thereby facilitating the removal and replacement of the rubber sheet 12.

[0042] In this embodiment, an annular sealing block 7 is fixedly installed on one of the sealing rings 1 and located inside the threaded rod 42. An annular sealing groove 521 is provided on the side of the sealing ring 2 away from the spring 51. The annular sealing block 7 can be inserted into the annular sealing groove 521 and fits with the cross section of the sealing ring 2 52. By setting the annular sealing block 7, when the sealing ring 2 52 abuts against the sealing ring 1, the annular sealing block 7 is inserted into the annular sealing groove 521 and fits with the cross section of the sealing ring 2 52, thereby increasing the fit between the sealing ring 2 52 and the sealing ring 1 and increasing the sealing performance between the sealing ring 2 52 and the sealing ring 1.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing ring for an ultra-high pressure pump valve, characterized in that: Includes a sealing ring (1), a sealing ring (2), and a telescopic component (3). The two sealing rings (1) are symmetrically arranged, and a groove (11) is provided on the side of the two sealing rings (1) that are close to each other. The two sealing rings (1) are connected by the telescopic component (3). Two rubber plates (12) are provided between the two sealing rings (1) and in the groove (11). The two rubber plates (12) are respectively attached to the inner walls of the two sides of the groove (11). A sealing ring (2) is integrally formed on the side of the two rubber plates (12) that are far apart from each other. The two sides of the sealing ring (2) are respectively in contact with the two sealing rings (1). The side of the two sealing rings (2) that are far apart from each other is flush with the outer side wall and the inner side wall of the sealing ring (1). An adjustment mechanism (4) is connected between the two sealing rings (1) for moving the two sealing rings (1) closer to each other or further apart along the telescopic member (3). It also includes a fixed sealing ring (5), on one side of which a spring (51) is fixedly connected, and on the other end of the spring (51) a sealing ring (52) that can abut against one of the sealing rings (1).

2. The ultra-high pressure pump valve sealing ring according to claim 1, characterized in that: The telescopic component (3) includes a housing (31) fixedly installed on one of the sealing rings (1) and located in the groove (11). A telescopic rod (32) is movably passed through the end of the housing (31), and the end of the telescopic rod (32) is fixedly connected to the other sealing ring (1).

3. A sealing ring for an ultra-high pressure pump valve according to claim 2, characterized in that: The adjustment mechanism (4) includes a connecting shell (41) fixedly installed on one of the sealing rings (1) and located in the groove (11). The end of the connecting shell (41) is threaded through a threaded rod (42). The threaded rod (42) is rotatably connected to the other sealing ring (1). The end of the threaded rod (42) is flush with the outer wall of the sealing ring (1). The threaded rod (42) is parallel to the axial direction of the telescopic rod (32).

4. The ultra-high pressure pump valve sealing ring according to claim 1, characterized in that: A limiting mechanism (6) is installed between the two sealing rings (1) and within the groove (11) to limit the two rubber plates (12).

5. A sealing ring for an ultra-high pressure pump valve according to claim 4, characterized in that: The limiting mechanism (6) includes two annular limiting shells (61) that are fixedly installed on the sealing ring (1) and located in the groove (11). The two annular limiting shells (61) are respectively attached to the side of the two rubber plates (12) that are close to each other. The end of the annular limiting shell (61) is movably connected to an annular extension plate (62) that is fixed to the other sealing ring (1).

6. A sealing ring for an ultra-high pressure pump valve according to claim 1, characterized in that: The two ends of the rubber sheet (12) are respectively inserted into the two grooves (11).

7. A sealing ring for an ultra-high pressure pump valve according to claim 3, characterized in that: An annular sealing block (7) is fixedly installed on one of the sealing rings (1) and located inside the threaded rod (42). An annular sealing groove (521) is provided on the side of the sealing ring (2) away from the spring (51). The annular sealing block (7) can be inserted into the annular sealing groove (521) and fits the cross section between it and the sealing ring (2) (52).

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