CN214305350U - Soft-hard combined sealing device for valve opening and closing hardware - Google Patents
Soft-hard combined sealing device for valve opening and closing hardware Download PDFInfo
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- CN214305350U CN214305350U CN202120614719.XU CN202120614719U CN214305350U CN 214305350 U CN214305350 U CN 214305350U CN 202120614719 U CN202120614719 U CN 202120614719U CN 214305350 U CN214305350 U CN 214305350U
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Abstract
The utility model discloses a valve opening and closing hardware soft or hard combined sealing device, including seal receptacle, first sealing washer, opening and closing piece, valve rod, second sealing washer, annular bulge, ring groove, be equipped with the mounting groove that supplies second sealing washer installation, blind hole form on the opening and closing piece, coaxial sliding fit block has the compact heap in the mounting groove, the compact heap is located second sealing washer top, and it moves down through the compact heap drive it, and extrudees the second sealing washer. Through setting up annular bulge block in ring groove, realize mechanical seal to soft seal through the second sealing washer, and then realize soft, hard seal combination promotes the sealed effect of opening and close piece, through setting up compact structure, and then produce the extrusion force to the second sealing washer, improve the tight degree of support of second sealing washer and seal receptacle, and then guaranteed the sealing performance of second sealing washer, make under high temperature high pressure operating mode, prevent that the second sealing washer from producing inefficacy.
Description
Technical Field
The utility model relates to the technical field of valves, specifically a valve opening and closing hardware software and hardware combination sealing device.
Background
Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems.
For example, the chinese patent No. CN2495859 discloses a soft-hard combined sealing device for a valve opening and closing member, which comprises a valve body, a sealing seat, an O-shaped sealing ring, an opening and closing member, a positioning valve rod, a fastening screw and a spring, wherein the sealing seat is provided with two soft and hard sealing surfaces, the hard sealing surface is a circular plane or a circular conical surface, the soft sealing surface is a circular arc surface, the cross section of the soft sealing surface is a circular arc, the opening and closing member is provided with two soft and hard sealing surfaces, the hard sealing surface is a circular plane or a circular conical surface, the O-shaped soft sealing ring on the opening and closing member forms a soft sealing surface, and the soft and hard sealing surfaces are matched with each other, so as to improve the opening and closing sealing performance of the valve during operation, improve the noise elimination and vibration prevention performance and improve the sealing life of the valve opening and closing member.
Among the above-mentioned prior art, after the sealing washer on the opening and closing piece is ageing, its sealing performance to between opening and closing piece and the seal receptacle will descend, leads to needs maintenance or change, especially under the high temperature high pressure condition, the sealing washer bears the pressure too big, produces the problem that sealed effect descends easily.
In order to solve the above problems, we propose a soft-hard combined sealing device for valve opening and closing hardware.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, a valve opening and closing hardware soft or hard combined sealing device is provided, in order to solve above-mentioned technical problem, the utility model provides a following technical scheme:
the utility model provides a soft and hard combined sealing device of a valve opening and closing piece, which comprises a sealing seat arranged in a valve seat, the sealing seat is connected with the sealing seat in a sealing way by installing a first sealing ring, the sealing seat is abutted with an opening and closing piece, the opening and closing piece is rotatably connected with a valve rod, the thread of the valve rod penetrates through the sealing seat, the bottom surface of the opening and closing piece is provided with a second sealing ring, which is sealed with the sealing seat through the second sealing ring, the bottom surface of the opening and closing piece is provided with an annular bulge part with an arc-shaped longitudinal section, the sealing seat is provided with an annular clamping groove for clamping the annular convex part, the opening and closing piece is provided with a blind hole type mounting groove for mounting the second sealing ring, and a compression block is coaxially clamped in the mounting groove in a sliding fit manner, is positioned above the second sealing ring and is driven to move downwards through a compression structure and extrudes the second sealing ring.
As a further optimization of the above technical solution, the compression structure includes a floating column which is slidably fitted and penetrates out of the top surface of the opening and closing member, the upper end of the floating column is connected with a floating block through a buffer component, the top surface of the opening and closing member is provided with a fixed sleeve, the bottom of the fixed sleeve is provided with a sliding groove which is used for clamping the floating block and can freely pass through the sliding groove in a vertical movement manner, an adjusting bolt is threaded through the top of the fixed sleeve, and one end of the adjusting bolt penetrating into the fixed sleeve abuts against the floating block.
As a further optimization of the technical scheme, the opening and closing piece is provided with a plurality of rib plates extending to the fixing sleeve.
As a further optimization of the above technical solution, the buffer assembly includes a fixed block disposed at an upper end of the floating column, and an elastic member is disposed between the fixed block and the floating block, and the elastic member elastically abuts against the floating block.
As a further optimization of the above technical solution, the elastic member is a compression spring vertically installed in the sliding groove, and two ends of the compression spring in the elastic direction elastically abut against the floating block and the fixing block respectively.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: through setting up annular bulge block in ring groove, realize mechanical seal, and soft seal through the second sealing washer, and then realize soft, the sealed effect that the sealing combination promoted the opening and closing piece hard, through setting up compact structure, and then produce the extrusion force to the second sealing washer, improve the tight degree of support of second sealing washer and seal receptacle, and then guaranteed the sealing performance of second sealing washer, make under high temperature high pressure operating mode, prevent that the second sealing washer from producing inefficacy, and through rotating adjusting bolt, can adjust the compressing tightly dynamics of compact heap to the second sealing washer, and then adjust the tight dynamics of support of second sealing washer to the seal receptacle surface, it is too big to avoid the tight dynamics of support, influence the life of second sealing washer.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a valve opening and closing hardware soft and hard combined sealing device of the present invention;
FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;
the reference numerals are explained below:
1-opening and closing piece, 2-valve rod, 3-adjusting bolt, 4-fixing sleeve, 5-second sealing ring, 6-first sealing ring, 7-annular bulge, 8-sealing seat, 9-floating block, 10-fixing block, 11-floating column, 12-mounting groove, 13-pressing block, 14-compression spring and 15-sliding groove.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Examples
As shown in fig. 1-2, a valve opening and closing hardware soft and hard combined sealing device comprises a sealing seat 8 installed in a valve seat, the sealing seat 8 is connected with the sealing seat 8 in a sealing way by installing a first sealing ring 6, an opening and closing element 1 is abutted on the sealing seat 8, a valve rod 2 is connected on the opening and closing element 1 in a rotating way, the valve rod 2 penetrates through the sealing seat 8 by screw threads, a second sealing ring 5 is installed on the bottom surface of the opening and closing element 1, it is sealed with seal receptacle 8 through second sealing washer 5, open and close 1 bottom surface of piece and be equipped with a longitudinal section and become curved annular bulge 7, set up the ring groove who supplies the annular bulge 7 block on the seal receptacle 8, open and close and be equipped with on 1 and supply second sealing washer 5 installation, the mounting groove 12 of blind hole form, coaxial sliding fit block has compressing block 13 in mounting groove 12, compressing block 13 is located second sealing washer 5 top, and it moves down through the drive of compact structure, and extrude second sealing washer 5.
In this embodiment, the pressing structure includes a floating column 11 which is slidably fitted and penetrates out of the top surface of the opening and closing part 1, the upper end of the floating column 11 is connected with a floating block 9 through a buffer component, the top surface of the opening and closing part 1 is provided with a fixing sleeve 4, the bottom of the fixing sleeve 4 is provided with a sliding groove 15 for clamping the floating block 9 and allowing vertical movement to freely pass through, an adjusting bolt 3 is threaded at the top of the fixing sleeve 4, one end of the adjusting bolt 3 penetrating into the fixing sleeve 4 abuts against the floating block 9, the adjusting bolt 3 is rotated by using a tool, the adjusting bolt 3 is screwed on the fixing sleeve 4, the lower end of the adjusting bolt abuts against the floating block 9 and drives the floating block 9 to move downwards, so that the floating column 11 moves downwards, the pressing block 13 presses the second sealing ring 5, the second sealing ring 5 abuts against the surface of the sealing seat 8, and the sealing performance of the second sealing ring 5 is improved.
In this embodiment, the opening and closing member 1 is provided with a plurality of ribs extending to the fixing sleeve 4 to enhance the rigidity of the fixing sleeve 4.
In this embodiment, the buffer assembly includes a fixed block 10 disposed at an upper end of the floating post 11, a compression spring 14 vertically installed in the sliding groove 15 is disposed between the fixed block 10 and the floating block 9, two ends of the compression spring 14 in an elastic direction elastically abut against the floating block 9 and the fixed block 10 respectively, and the compression spring 14 elastically abuts against the floating post 11 to prevent the second seal ring 5 from generating an excessive pressing force and causing the second seal ring 5 to generate a failure deformation.
The utility model discloses when using: the adjusting bolt 3 is rotated by using a tool, the adjusting bolt 3 is screwed on the fixed sleeve 4, the lower end of the adjusting bolt abuts against the floating block 9, the floating block 9 is driven to move downwards, the floating column 11 moves downwards, the pressing block 13 presses the second sealing ring 5, the second sealing ring 5 abuts against the surface of the sealing seat 8, the sealing performance of the second sealing ring 5 is improved, in the process, the floating column 11 is elastically abutted through the compression spring 14, and the second sealing ring 5 is prevented from generating overlarge pressing force and generating failure deformation due to the fact that the second sealing ring 5 generates.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A valve opening and closing hardware soft and hard combined sealing device comprises a sealing seat (8) installed in a valve seat, wherein the sealing seat (8) is connected with the sealing seat (8) in a sealing mode through a first sealing ring (6), an opening and closing part (1) is abutted to the sealing seat (8), the opening and closing part (1) is connected with a valve rod (2) in a rotating mode, the valve rod (2) penetrates through the sealing seat (8) in a threaded mode, a second sealing ring (5) is installed on the bottom surface of the opening and closing part (1) and is sealed with the sealing seat (8) through the second sealing ring (5), the valve opening and closing device is characterized in that an annular protruding portion (7) with an arc-shaped longitudinal section is arranged on the bottom surface of the opening and closing part (1), an annular clamping groove for clamping the annular protruding portion (7) is formed in the sealing seat (8), a mounting groove (12) which is used for mounting the second sealing ring (5) and is in a blind hole form is formed in the opening and closing part (1), and a compression block (13) is coaxially clamped in the mounting groove (12) in a sliding fit manner, the compression block (13) is positioned above the second sealing ring (5), and is driven to move downwards through a compression structure and extrude the second sealing ring (5).
2. The soft-hard combined sealing device for the valve opening and closing part according to claim 1, wherein the compression structure comprises a floating column (11) which is in sliding fit with the top surface of the opening and closing part (1), the upper end of the floating column (11) is connected with a floating block (9) through a buffer component, the top surface of the opening and closing part (1) is provided with a fixing sleeve (4), the bottom of the fixing sleeve (4) is provided with a sliding groove (15) for clamping the floating block (9) and allowing the floating block to freely pass through in a vertical movement mode, the top of the fixing sleeve (4) is threaded with an adjusting bolt (3), and one end of the adjusting bolt (3) penetrating into the fixing sleeve (4) abuts against the floating block (9).
3. A valve opening and closing hardware soft and hard combined sealing device according to claim 2, characterized in that the opening and closing element (1) is provided with a plurality of ribs extending to the retaining sleeve (4).
4. The soft-hard combined sealing device for the valve opening and closing hardware as claimed in claim 2, wherein the buffer component comprises a fixed block (10) arranged at the upper end of a floating column (11), an elastic component is arranged between the fixed block (10) and the floating block (9), and the elastic component elastically abuts against the floating block (9).
5. The soft-hard combined sealing device of the valve opening and closing component according to claim 4, wherein the elastic component is a compression spring (14) vertically installed in the sliding groove (15), and two ends of the compression spring (14) in the elastic direction elastically abut against the floating block (9) and the fixed block (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120614719.XU CN214305350U (en) | 2021-03-25 | 2021-03-25 | Soft-hard combined sealing device for valve opening and closing hardware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120614719.XU CN214305350U (en) | 2021-03-25 | 2021-03-25 | Soft-hard combined sealing device for valve opening and closing hardware |
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| Publication Number | Publication Date |
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| CN214305350U true CN214305350U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120614719.XU Active CN214305350U (en) | 2021-03-25 | 2021-03-25 | Soft-hard combined sealing device for valve opening and closing hardware |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578003A (en) * | 2022-03-04 | 2022-06-03 | 安徽三联学院 | Meat bacterium detection sensor and mechanism thereof |
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2021
- 2021-03-25 CN CN202120614719.XU patent/CN214305350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578003A (en) * | 2022-03-04 | 2022-06-03 | 安徽三联学院 | Meat bacterium detection sensor and mechanism thereof |
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