CN203516857U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN203516857U CN203516857U CN201320510910.5U CN201320510910U CN203516857U CN 203516857 U CN203516857 U CN 203516857U CN 201320510910 U CN201320510910 U CN 201320510910U CN 203516857 U CN203516857 U CN 203516857U
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- Prior art keywords
- spring
- way valve
- spring seat
- wedge
- adjusting bolt
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Abstract
The utility model provides a one-way valve and belongs to the technical field of valves. The one-way valve solves the problem that the pretightening force of a spring of an existing one-way valve is difficult to adjust. The one-way valve comprises a body. A valve rod axially penetrates through the body. A gasket is fixedly connected to the valve rod. An annular raised edge is arranged on the inner wall of the body. The gasket abuts against the annular raised edge. The valve rod is sleeved with an annular spring seat and a spring. The spring seat is connected to the inner wall of the body in a sliding mode. One end of the spring abuts against the gasket and the other end of the spring abuts against the spring seat. An adjusting bolt is connected to the body in the radial direction in a penetrating mode. A transmission mechanism capable of adjusting the pretightening force of the spring is arranged between the adjusting bolt and the spring seat. According to the one-way valve, the pretightening force of the spring in the valve body can be adjusted.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of one-way valve.
Background technique
One-way valve claims again safety check or check valve, prevents oil stream reverse flow, or prevent pressurized air reverse flow for pneumatic system for hydraulic system.One-way valve has two kinds of straight-through type and right-angle types.Straight check valve is arranged on pipeline with being threaded.Angle check valve is threaded, board-like connection is connected three kinds of forms with flange.Safety check is of many uses, has many types, and as spring one-way valve, liquid from bottom to top, relies on the spring controlled flap of pressure jack-up, and after pressure disappears, spring force is depressed flap, and sealing liquid flows backwards; Gravity-held check valve, similar with spring, rely on the self gravitation sealing of flap, prevent from flowing backwards; Rotary-open type one-way valve, liquid is straight-through in valve body, relies on pressure to back down the rotation flap of a side, and after pressure loses, flap relies on deadweight return, reverse fluid pressure sealing flap.
As Chinese invention patent application (200920112116.9) discloses a kind of safety check, comprise the valve body that an inside is cavity, in valve body, be provided with Sealing and locating piece, locating piece is connected in valve body, between locating piece and Sealing, be provided with spring, in valve body, there is a sealing surface matching with Sealing, elastic force effect lower seal at spring is resisted against on sealing surface and forms sealing, on locating piece, there is the guide rod that is shaft-like, between Sealing and guide rod, there is the guide structure that can make Sealing move along guide rod.Although this safety check can solve the smooth problem of Sealing moving part, one-way valve is in long-term using process, and the spring in its valve body there will be a hypodynamic deterioration phenomenon, and its pretightening force is reduced, and affects the usability of one-way valve.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of one-way valve, the pretightening force that this one-way valve can regulation valve body inner spring.
The purpose of this utility model can realize by following technical proposal: a kind of one-way valve, comprise a tubular body, described body has entrance point and outlet end, in body, be axially equipped with a valve rod, on described valve rod, be fixed with a packing ring, in described inner body wall, there is a convex annular edge, described packing ring is resisted against convex annular along upper, it is characterized in that, on described valve rod, be arranged with an annular elastomeric spring abutment and a spring, described spring seat is slidably connected in inner body wall, described spring one end is pressed on packing ring, the other end is pressed on spring seat, on described body, radially wear and be connected with an adjusting bolt, between described adjusting bolt and spring seat, be provided with can Regulation spring pretightening force driving mechanism.
When liquid enters body from entrance point, can make packing ring Compress Spring by pressure, realize flowing of liquid, and because packing ring is resisted against convex annular along upper, so liquid cannot flow to entrance point from outlet end, realize the one-way flow of liquid; Spring seat is that spring provides support, by driving mechanism, realize the axially locating of self simultaneously, and when adjusting bolt is rotated, adjusting bolt can move axially spring seat realization by driving mechanism, thereby the distance between Regulation spring seat and packing ring, finally realizes the object of Regulation spring pretightening force.
In above-mentioned one-way valve, in described inner body wall, axially offer two chutes, the relative valve rod shaft axis of described two chute is symmetrical arranged, and on described spring seat periphery wall, has two slide blocks, and described two slide blocks are slidably connected in chute.At spring seat, carry out axial position while regulating, chute provides leading role by slide block for spring seat, and the circumferential rotation that chute can restraining spring seat simultaneously and prevent that spring seat from tilting makes the movement of spring seat and all keeps stable fixedly time.
In above-mentioned one-way valve, described driving mechanism comprises the wedge-shaped blocks one being fixed on spring seat side, and the insertion end end of described adjusting bolt is rotatably connected to wedge-shaped blocks two, and the inclined-plane of the inclined-plane of described wedge-shaped blocks one and wedge-shaped blocks two leans.Adjusting bolt can promote wedge-shaped blocks two while rotating and move radially along body, and the ramp effect of wedge-shaped blocks two makes wedge-shaped blocks one promotion spring seat move axially in the inclined-plane of wedge-shaped blocks one, thereby realizes the pretightening force adjusting of spring.
In above-mentioned one-way valve, on the side of described wedge-shaped blocks two, offer an attachment hole, the insertion end of described adjusting bolt is rotated and is plugged in attachment hole.While avoiding adjusting bolt to rotate, wedge-shaped blocks two and then one runs up, and also avoids wedge-shaped blocks two to depart from wedge-shaped blocks one simultaneously.
In above-mentioned one-way valve, between described adjusting bolt and body, be provided with seal ring.Increase the sealing of adjusting bolt and body joint.
In above-mentioned one-way valve, in described body, be also provided with the guide holder of an annular, described guide holder is fixed in inner body wall by two contiguous blocks, and above-mentioned valve rod is plugged in guide holder.Guide holder provides guidance quality to the movement of valve rod, makes the movement of valve rod more stable.
Compared with prior art, this one-way valve has the following advantages:
1, because adjusting bolt can be by the distance between wedge-shaped blocks one and wedge-shaped blocks two Regulation spring seats and packing ring, so pretightening force that can Regulation spring.
2, due to therefore spring seat is slidably connected in chute by two slide blocks can be for spring seat provides leading role, the circumferential rotation that chute can restraining spring seat simultaneously and prevent that spring seat from tilting, makes the movement of spring seat and all keeps stable fixedly time.
3, owing to being also provided with the guide holder of an annular in body, therefore can provide guidance quality to the movement of valve rod, make the movement of valve rod more stable.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of this one-way valve.
In figure, 1, body; 11, entrance point; 12, outlet end; 13, convex annular edge; 14, chute; 2, valve rod; 3, packing ring; 4, spring seat; 41, slide block; 5, spring; 6, adjusting bolt; 7, wedge-shaped blocks one; 8, wedge-shaped blocks two; 9, guide holder; 91, contiguous block.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of one-way valve, comprise a tubular body 1, body 1 has entrance point 11 and outlet end 12, at the interior valve rod 2 that is axially equipped with of body 1, on valve rod 2, be fixed with a packing ring 3, on body 1 inwall, there is a convex annular along 13, packing ring 3 is resisted against convex annular along on 13, on valve rod 2, be arranged with an annular elastomeric spring abutment 4 and a spring 5, spring 5 one end are pressed on packing ring 3, the other end is pressed on spring seat 4, when entering body 1 from entrance point 11, liquid can make packing ring 3 Compress Springs 5 by pressure, realize flowing of liquid, and because packing ring 3 is resisted against convex annular along on 13, therefore liquid cannot flow to entrance point 11 from outlet end 12, realize the one-way flow of liquid.Spring seat 4 is slidably connected on body 1 inwall, on body 1, radially wear and be connected with an adjusting bolt 6, between adjusting bolt 6 and spring seat 4, be provided with driving mechanism, spring seat 4 provides support for spring 5, by driving mechanism, realize the axially locating of self, and when adjusting bolt 6 rotation, adjusting bolt 6 can move axially spring seat 4 realizations by driving mechanism simultaneously, thereby the distance between Regulation spring seat 4 and packing ring 3, finally realizes the object of Regulation spring 5 pretightening forces.
Specifically, on body 1 inwall, axially offer two chutes 14, relative valve rod 2 shaft axiss of two chutes 14 are symmetrical arranged, on spring seat 4 periphery walls, there are two slide blocks 41, two slide blocks 41 are slidably connected in chute 14, at spring seat 4, carry out axial position while regulating, and chute 14 provides leading role by slide block 41 for spring seat 4, the circumferential rotation that simultaneously chute 14 can restraining spring seat 4 and prevent that spring seat 4 from tilting, makes the movement of spring seat 4 and all keeps stable fixedly time.Between adjusting bolt 6 and body 1, be provided with seal ring, increase the sealing of adjusting bolt 6 and body 1 joint.In body 1, be also provided with the guide holder 9 of an annular, guide holder 9 is fixed on body 1 inwall by two contiguous blocks 91, and valve rod 2 is plugged in guide holder 9, and the movement of 9 pairs of valve rods 2 of guide holder provides guidance quality, makes the movement of valve rod 2 more stable.
Driving mechanism comprises the wedge-shaped blocks 1 being fixed on spring seat 4 sides, the insertion end end of adjusting bolt 6 is rotatably connected to wedge-shaped blocks 28, on the side of wedge-shaped blocks 28, offer an attachment hole, the insertion end of adjusting bolt 6 is rotated and is plugged in attachment hole, while avoiding adjusting bolt 6 to rotate, wedge-shaped blocks 28 and then one runs up, also avoid wedge-shaped blocks 28 to depart from wedge-shaped blocks 1 simultaneously, the inclined-plane of the inclined-plane of wedge-shaped blocks 1 and wedge-shaped blocks 28 leans, adjusting bolt 6 can promote wedge-shaped blocks 28 while rotating and move radially along body 1, the ramp effect of wedge-shaped blocks 28 makes wedge-shaped blocks one 7 promotion spring seats 4 move axially in the inclined-plane of wedge-shaped blocks 1, thereby the pretightening force that realizes spring 5 regulates.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used herein body 1, entrance point 11, outlet end 12, convex annular along 13, the term such as chute 14, valve rod 2, packing ring 3, spring seat 4, slide block 41, spring 5, adjusting bolt 6, do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. an one-way valve, comprise a tubular body (1), described body (1) has entrance point (11) and outlet end (12), in body (1), be axially equipped with a valve rod (2), on described valve rod (2), be fixed with a packing ring (3), on described body (1) inwall, there is a convex annular along (13), described packing ring (3) is resisted against convex annular along on (13), it is characterized in that, on described valve rod (2), be arranged with an annular elastomeric spring abutment (4) and a spring (5), described spring seat (4) is slidably connected on body (1) inwall, described spring (5) one end is pressed on packing ring (3), the other end is pressed on spring seat (4), on described body (1), radially wear and be connected with an adjusting bolt (6), between described adjusting bolt (6) and spring seat (4), be provided with can Regulation spring (5) pretightening force driving mechanism.
2. one-way valve according to claim 1, it is characterized in that, on described body (1) inwall, axially offer two chutes (14), described two chutes (14) relatively valve rod (2) shaft axis are symmetrical arranged, on described spring seat (4) periphery wall, have two slide blocks (41), described two slide blocks (41) are slidably connected in chute (14).
3. one-way valve according to claim 2, it is characterized in that, described driving mechanism comprises the wedge-shaped blocks one (7) being fixed on spring seat (4) side, the insertion end end of described adjusting bolt (6) is rotatably connected to wedge-shaped blocks two (8), and the inclined-plane of the inclined-plane of described wedge-shaped blocks one (7) and wedge-shaped blocks two (8) leans.
4. one-way valve according to claim 3, is characterized in that, on the side of described wedge-shaped blocks two (8), offers an attachment hole, and the insertion end of described adjusting bolt (6) is rotated and is plugged in attachment hole.
5. one-way valve according to claim 4, is characterized in that, between described adjusting bolt (6) and body (1), is provided with seal ring.
6. one-way valve according to claim 5, it is characterized in that, in described body (1), be also provided with the guide holder (9) of an annular, described guide holder (9) is fixed on body (1) inwall by two contiguous blocks (91), and above-mentioned valve rod (2) is plugged in guide holder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510910.5U CN203516857U (en) | 2013-08-21 | 2013-08-21 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510910.5U CN203516857U (en) | 2013-08-21 | 2013-08-21 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516857U true CN203516857U (en) | 2014-04-02 |
Family
ID=50375789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510910.5U Expired - Fee Related CN203516857U (en) | 2013-08-21 | 2013-08-21 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397581A (en) * | 2018-05-28 | 2018-08-14 | 南京若吉电子有限公司 | A kind of large scale ruggedized monitor air-permeable dampproof structure |
| CN115584895A (en) * | 2022-09-08 | 2023-01-10 | 中国第一汽车股份有限公司 | Adjustable resistance type limiter, control method, system, equipment and automobile |
-
2013
- 2013-08-21 CN CN201320510910.5U patent/CN203516857U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397581A (en) * | 2018-05-28 | 2018-08-14 | 南京若吉电子有限公司 | A kind of large scale ruggedized monitor air-permeable dampproof structure |
| CN115584895A (en) * | 2022-09-08 | 2023-01-10 | 中国第一汽车股份有限公司 | Adjustable resistance type limiter, control method, system, equipment and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140821 |
|
| EXPY | Termination of patent right or utility model |