CN211423482U - Pressure stabilizing valve pressure regulating spring pretightening force adjusting mechanism - Google Patents
Pressure stabilizing valve pressure regulating spring pretightening force adjusting mechanism Download PDFInfo
- Publication number
- CN211423482U CN211423482U CN201922396715.4U CN201922396715U CN211423482U CN 211423482 U CN211423482 U CN 211423482U CN 201922396715 U CN201922396715 U CN 201922396715U CN 211423482 U CN211423482 U CN 211423482U
- Authority
- CN
- China
- Prior art keywords
- lead screw
- end cover
- screw rod
- movable spring
- stabilizing valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to a spring pretightning force field of adjusting especially relates to a pressure regulator valve pressure regulating spring pretightning force adjustment mechanism, and movable spring holder sets up inside the last casing of pressure regulator valve, movable spring holder and the internal surface sliding connection of pressure regulator valve upper housing, lead screw and movable spring holder pass through threaded connection, and the lead screw runs through end cover and movable spring holder, and the lead screw rotates with the end cover to be connected, and the lead screw passes through threaded connection with movable spring holder, and two elasticity cylindric locks wear to establish respectively at the upper and lower both ends of lead screw, upper end elasticity cylindric lock clamp is established between end cover and movable spring holder. The spring mounting is between activity spring holder and work diaphragm spring holder, through rotatory lead screw, can make the activity spring holder reciprocate under the condition that the lead screw does not have the vertical direction removal, reaches the purpose of adjusting the pressure regulating spring pretightning force, and this adjustment mechanism lead screw is inside the surge damping valve all the time, and the lead screw can not be infected with outside dust and debris, can not occupy exterior space among the lead screw accommodation process.
Description
Technical Field
The utility model relates to a spring pretightning force adjusts the field, especially relates to a surge damping valve pressure regulating spring pretightning force adjustment mechanism.
Background
At present, when a pressure stabilizing valve is used for adjusting set outlet pressure, the pretightening force of a pressure adjusting spring needs to be changed. When the conventional pressure regulating valve is adjusted by the spring pretightening force adjusting mechanism, the screw rod mechanism can extend or shorten along with the change of the pretightening height of the spring. On the one hand, the lead screw can expose in the surge damping valve outside air after the extension, fat liquoring lubricating grease on general lead screw, and the lead screw that exposes in the external environment can be stained with dust and debris in the environment, can lead to the lead screw rotatory difficulty, jamming, still can damage the helicitic texture when serious. On the other hand, when the pressure stabilizing valve is adjusted, the output of the screw rod needs enough adjusting space, and the use of the pressure stabilizing valve provided with the conventional spring pretightening force adjusting mechanism is limited on the occasion of narrow installation space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a surge damping valve pressure regulating spring pretightning force adjustment mechanism is provided, solves the surge damping valve of installing conventional pressure regulating spring pretightning force adjustment mechanism, and surge damping valve usage space is limited, and the lead screw structure exposes externally, is infected with the problem of dust and debris easily.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a surge damping valve pressure regulating spring pretightning force adjustment mechanism, includes lead screw, end cover, movable spring seat, surge damping valve upper housing and two elasticity cylindric locks, the end cover with the last casing of surge damping valve is connected, movable spring seat sets up inside the last casing of surge damping valve, movable spring seat with surge damping valve upper housing internal surface sliding connection, the lead screw runs through the end cover with the movable spring seat, the lead screw with the end cover rotates to be connected, the lead screw with the movable spring seat passes through threaded connection, two the elasticity cylindric lock is worn to establish respectively the upper and lower both ends of lead screw, upper end the elasticity cylindric lock clamp is established the end cover with between the movable spring seat.
Further, the screw rod is rotatably connected with the end cover through a spring retainer ring for a shaft.
Furthermore, an O-shaped rubber ring is sleeved on the screw rod, and the screw rod is connected with the end cover in a sealing mode through the O-shaped rubber ring.
Furthermore, a groove is formed in the position, where the O-shaped rubber ring is located, of the screw rod.
Further, the inner surface of the pressure stabilizing valve upper shell is provided with a guide slide rail extending from top to bottom, the movable spring seat is provided with a guide groove corresponding to the position of the guide slide rail, and the guide groove is matched with the guide slide rail.
Further, a processing spring mounting groove is formed in the lower surface of the movable spring seat.
The screw rod is sleeved with the A-type large gasket, and the A-type large gasket is arranged between the end cover and the elastic cylindrical pin.
The utility model provides a surge damping valve pressure regulating spring pretightning force adjustment mechanism, casing and two elasticity cylindric locks on lead screw, end cover, movable spring holder, the surge damping valve, the end cover with the casing is connected on the surge damping valve, movable spring holder sets up inside the last casing of surge damping valve, movable spring holder with surge damping valve upper housing internal surface sliding connection, the lead screw runs through the end cover with movable spring holder, the lead screw with the end cover rotates to be connected, the lead screw with movable spring holder passes through threaded connection, two the elasticity cylindric lock is worn to establish respectively the upper and lower both ends of lead screw, upper end the elasticity cylindric lock clamp is established the end cover with between the movable spring holder. Therefore, on the pressure stabilizing valve upper shell installed by the internal threads of the end cover in the assembly, the guide grooves at two ends of the movable spring seat are in sliding fit with the pressure stabilizing valve upper shell, the spring is installed between the movable spring seat and the working diaphragm spring seat, the movable spring seat can be moved up and down through rotating the screw rod under the condition that the screw rod does not move in the vertical direction, the aim of adjusting the pretightening force of the pressure regulating spring is achieved, the screw rod of the adjusting mechanism is always inside the pressure stabilizing valve, the screw rod cannot be infected with external dust and sundries, and the external space cannot be occupied in the screw rod adjusting.
Drawings
Fig. 1 is a pressure-stabilizing valve pressure-regulating spring pretightening force adjusting mechanism in the embodiment of the present invention;
fig. 2 is the screw rod in the embodiment of the present invention;
fig. 3 is a cross-sectional view of the end cap according to an embodiment of the present invention;
fig. 4 is a top view of an end cap according to an embodiment of the present invention;
fig. 5 is a top, bottom, isometric view of the movable spring seat in an embodiment of the present invention;
fig. 6 is an isometric view of another orientation of the movable spring seat in an embodiment of the invention;
fig. 7 is an illustration showing an example of the pressure regulating spring pretightening force adjusting structure installed on the pressure stabilizing valve according to the embodiment of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
11. the pressure-stabilizing valve comprises a screw rod, 12 a spring retainer ring for the shaft, 13 an O-shaped rubber ring, 14 an end cover, 15 an A-shaped large washer, 16 a movable spring seat, 17 an elastic cylindrical pin, 2 an upper pressure-stabilizing valve shell, 21 a guide sliding rail, 3 a pressure-regulating spring, 4 a protective cap, 5 and a tetrafluoro sealing ring.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a surge damping valve pressure regulating spring pretightning force adjustment mechanism, casing 2 and two elasticity cylindric lock 17 on lead screw 11, end cover 14, movable spring seat 16, the surge damping valve, end cover 14 with casing 2 is connected on the surge damping valve, movable spring seat 16 sets up casing 2 is inside on the surge damping valve, movable spring seat 16 with 2 internal surface sliding connection of casing on the surge damping valve, lead screw 11 runs through end cover 14 with movable spring seat 16, lead screw 11 with end cover 14 rotates to be connected, lead screw 11 with movable spring seat 16 passes through threaded connection, two elasticity cylindric lock 17 is worn to establish respectively the upper and lower both ends of lead screw 11, the upper end elasticity cylindric lock 17 presss from both sides and establishes end cover 14 with between the movable spring seat 16. Therefore, on the pressure stabilizing valve upper shell 2 installed by the internal thread of the end cover 14 in the assembly, the guide grooves at the two ends of the movable spring seat 16 are in sliding fit with the pressure stabilizing valve upper shell 2, the spring is installed between the movable spring seat 16 and the working diaphragm spring seat, and the movable spring seat 16 can move up and down through rotating the screw rod 11 under the condition that the screw rod 11 does not move in the vertical direction, so that the aim of adjusting the pre-tightening force of the pressure adjusting spring 3 is fulfilled, the screw rod 11 of the adjusting mechanism is always inside the pressure stabilizing valve, the screw rod 11 cannot be infected with external dust and sundries, and the screw rod 11 cannot occupy external space in.
The utility model discloses a surge damping valve pressure regulating spring pretightning force adjustment mechanism, as shown in fig. 1-7, can also be on the basis of the technical scheme of preceding description: the adjusting mechanism comprises a screw rod 11, a spring retainer ring 12 for a shaft, an O-shaped rubber ring 13, an end cover 14, an A-shaped large gasket 15, a movable spring seat 16, an elastic cylindrical pin 17 and the like. The left-handed external thread 114 is processed at one end of the screw rod 11, the left-handed internal thread 161 is processed inside the movable spring seat 16, the screw rod 11 and the movable spring seat are connected through threads, two elastic cylindrical pins 17 are inserted into a limiting hole 111 of the screw rod, an A-shaped large gasket 15 and an O-shaped rubber ring 13 are arranged in the screw rod, the screw rod 11 is arranged in an inner hole 141 of an end cover 14, lubricating grease is coated in a gap between the screw rod 11 and the end cover 14, a spring retainer ring 12 for a shaft is arranged on the screw rod 11, and the screw rod 11, the end cover 14 and other.
Referring to fig. 2, in the present embodiment, the material of the screw rod is 2a11, an O-ring mounting groove 113, a cylindrical spring pin mounting groove 111, and a shaft circlip mounting groove 113 are formed in the screw rod, a groove 112 is formed in one end of the screw rod, and a flat end 115 of the screw rod is milled in the other end of the screw rod.
Referring to fig. 1, 3, 4 and 7, in this embodiment, the end cap is made of material ZL104, and is formed by casting and then machining, an inner hole 141 matched with the screw rod 11, a plane 144 matched with the a-type large washer 15, a groove 143 for mounting the tetrafluoro seal ring 5 and an internal thread 142 matched with the upper housing 2 of the pressure stabilizing valve are formed in the end cap, an external thread 145 matched with the protective cap 4 is formed on the outer side of the upper end of the end cap 14, and a dodecagonal structure 146 is cast on the outer side of the lower end of the end cap 14.
Referring to fig. 5 and 6, in the present embodiment, the movable spring seat 16 is made of ZCuA110Fe3, a left-handed internal thread 161 and a spring mounting groove 163 are formed inside the movable spring seat 16 to match the screw rod 11, and two guide grooves 162 are formed outside the movable spring seat.
Referring to fig. 1 and 7, in this embodiment, a tetrafluoro seal ring 5 is mounted between the end cap and the upper surge tank casing 2 on which the internal thread 142 of the end cap 14 is mounted, guide grooves 162 at both ends of a movable spring seat 16 are matched with guide slide rails 21 of the upper surge tank casing 2, and a pressure regulating spring 3 is mounted between the movable spring seat 16 and a working diaphragm spring seat 6. By rotating the screw 11, the movable spring seat 16 can move up and down under the condition that the screw 11 does not move in the vertical direction, so that the aim of adjusting the pretightening force of the pressure adjusting spring 3 is fulfilled.
To sum up, the utility model provides a surge damping valve pressure regulating spring pretightning force adjustment mechanism only carries out rotary motion at during operation adjustment mechanism lead screw, does not have the vertical direction displacement, and the lead screw is inside the surge damping valve all the time, can not be infected with outside dust and debris, can not occupy the exterior space in the accommodation process.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a surge damping valve pressure regulating spring pretightning force adjustment mechanism which characterized in that: comprises a screw rod (11), an end cover (14), a movable spring seat (16), a pressure stabilizing valve upper shell (2) and two elastic cylindrical pins (17), the end cover (14) is connected with the pressure stabilizing valve upper shell (2), the movable spring seat (16) is arranged in the pressure stabilizing valve upper shell (2), the movable spring seat (16) is connected with the inner surface of the pressure maintaining valve upper shell (2) in a sliding way, the screw rod (11) penetrates through the end cover (14) and the movable spring seat (16), the screw rod (11) is rotatably connected with the end cover (14), the screw rod (11) is connected with the movable spring seat (16) through threads, the two elastic cylindrical pins (17) are respectively arranged at the upper end and the lower end of the screw rod (11) in a penetrating mode, and the elastic cylindrical pins (17) at the upper end are clamped between the end cover (14) and the movable spring seat (16).
2. The pressure stabilizing valve pressure regulating spring pre-tightening force adjusting mechanism as claimed in claim 1, characterized in that: the screw rod (11) is rotatably connected with the end cover (14) through a spring retainer ring (12) for a shaft.
3. The pressure stabilizing valve pressure regulating spring pre-tightening force adjusting mechanism as claimed in claim 1, characterized in that: the lead screw (11) is sleeved with an O-shaped rubber ring (13), and the lead screw (11) is connected with the end cover (14) in a sealing mode through the O-shaped rubber ring (13).
4. The pressure stabilizing valve pressure regulating spring pre-tightening force adjusting mechanism as claimed in claim 3, characterized in that: and a groove is formed in the position of the O-shaped rubber ring (13) of the screw rod (11).
5. The pressure stabilizing valve pressure regulating spring pre-tightening force adjusting mechanism as claimed in claim 1, characterized in that: the pressure stabilizing valve is characterized in that a guide sliding rail (21) extending from top to bottom is arranged on the inner surface of the upper shell (2) of the pressure stabilizing valve, a guide groove is formed in the position, corresponding to the guide sliding rail (21), of the movable spring seat (16), and the guide groove is matched with the guide sliding rail (21).
6. The pressure stabilizing valve pressure regulating spring pre-tightening force adjusting mechanism as claimed in claim 1, characterized in that: and a processing spring mounting groove is formed in the lower surface of the movable spring seat (16).
7. The pressure stabilizing valve pressure regulating spring pre-tightening force adjusting mechanism as claimed in claim 1, characterized in that: the screw rod structure is characterized by further comprising an A-type large gasket (15), the A-type large gasket (15) is sleeved on the screw rod (11), and the A-type large gasket (15) is arranged between the end cover (14) and the elastic cylindrical pin (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922396715.4U CN211423482U (en) | 2019-12-27 | 2019-12-27 | Pressure stabilizing valve pressure regulating spring pretightening force adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922396715.4U CN211423482U (en) | 2019-12-27 | 2019-12-27 | Pressure stabilizing valve pressure regulating spring pretightening force adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211423482U true CN211423482U (en) | 2020-09-04 |
Family
ID=72245484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922396715.4U Active CN211423482U (en) | 2019-12-27 | 2019-12-27 | Pressure stabilizing valve pressure regulating spring pretightening force adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211423482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230109960A (en) * | 2022-01-14 | 2023-07-21 | (주)유시스템 | Valve device for control of inner pressure of vacuumed chamber |
-
2019
- 2019-12-27 CN CN201922396715.4U patent/CN211423482U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230109960A (en) * | 2022-01-14 | 2023-07-21 | (주)유시스템 | Valve device for control of inner pressure of vacuumed chamber |
| KR102605998B1 (en) | 2022-01-14 | 2023-11-24 | (주)유시스템 | Valve device for control of inner pressure of vacuumed chamber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211423482U (en) | Pressure stabilizing valve pressure regulating spring pretightening force adjusting mechanism | |
| KR101836988B1 (en) | Pilot type pressure regulator | |
| CN210859933U (en) | Valve core of pressure limiting valve and pressure limiting valve | |
| KR101258448B1 (en) | Index table | |
| CN109719589B (en) | Grinding and repairing device for sealing surface of safety valve | |
| CN111486238B (en) | Electronic expansion valve | |
| CN217751717U (en) | Chuck mechanism, manipulator and PCB processing equipment | |
| CN115978258A (en) | Pressure regulating device | |
| CN209742997U (en) | Oil filter | |
| CN113983342B (en) | Pressure regulating valve structure with anti-pollution capability | |
| CN216369348U (en) | Diameter-variable cleaning device | |
| CN209977128U (en) | Novel nitrogen spring | |
| CN108609568B (en) | Quantitative filling device | |
| CN106351912A (en) | Air cylinder | |
| CN114233236B (en) | Sucker rod blowout prevention box | |
| CN220331116U (en) | Multifunctional balancer | |
| CN219282470U (en) | Subway pressure regulating valve capable of reducing faults | |
| CN217713049U (en) | Anti-blocking structure and pump | |
| CN216122079U (en) | Novel electromechanical integrated electric leveling support electric cylinder | |
| CN106078353B (en) | Numerical control device automatic contraposition device | |
| CN212804229U (en) | Sliding protection type mechanical seal | |
| CN212360781U (en) | Mechanical sealing element convenient to change sealing ring | |
| CN212959852U (en) | Mechanical seal for crushing grid machine | |
| CN219588195U (en) | Lifting check valve with function of reducing fluid resistance | |
| CN211449605U (en) | Iron fillings adsorption equipment and reduction gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |