CN214789238U - Overflow valve for coal mine - Google Patents
Overflow valve for coal mine Download PDFInfo
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- CN214789238U CN214789238U CN202120353926.4U CN202120353926U CN214789238U CN 214789238 U CN214789238 U CN 214789238U CN 202120353926 U CN202120353926 U CN 202120353926U CN 214789238 U CN214789238 U CN 214789238U
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- valve
- spring
- hole
- overflow
- spring seat
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Abstract
The utility model relates to the technical field of hydraulic technology, in particular to an overflow valve for coal mine, which has simple structure, convenient use, safety and reliability; the valve comprises a spring gland, a valve body, a spring seat, a valve core, a valve sleeve, an O-shaped ring, a check ring and an O-shaped ring, wherein a valve sleeve hole is formed in one end inside the valve body, and the valve sleeve is arranged in the valve sleeve hole of the valve body; the other end in the valve body is provided with internal threads, and the outer surface of the valve body is provided with external threads which are connected with an overflow pipeline; a valve core hole and an inner sealing groove are formed in the valve sleeve, the valve core is installed in the valve core hole of the valve sleeve, and the O-shaped ring is installed in the sealing groove; the outer circle of the valve sleeve is provided with a sealing groove and an outer cylinder, and the o-shaped ring and the check ring are arranged in the sealing groove; the large end face of the spring seat is provided with a conical hole and an overflow port, the other end of the spring seat is provided with a spring limiting boss, and the spring seat is arranged in the valve body; one end of the spring is arranged on a spring limiting boss of the spring seat, the other end of the spring is connected with the spring gland and is tangent to a taper hole in the spring seat, a hole is formed in the spring, and a small hole is formed in the wall of the spring.
Description
Technical Field
The utility model relates to a hydraulic pressure technical field especially relates to an overflow valve for coal mine.
Background
As is well known, an overflow valve for coal mines is a valve body device for adjusting hydraulic pressure, which is widely used in the field of hydraulic technology; on coal mine equipment, the hydraulic elements and sealing elements are often damaged due to unstable system pressure, water pipes are broken, water leakage is caused, the water pipes are broken, and the like, so that production work is influenced, production halt is caused seriously, large-area repair is needed, and normal use can be recovered only by investing a large amount of maintenance funds. In order to ensure normal work and protect system pressure, the novel overflow valve is simple in structure, convenient to use, safe and reliable, and meets the working condition of a coal mine.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an overflow valve for coal mine which has simple structure, convenient use, safety and reliability.
The utility model discloses an overflow valve for coal mine, which comprises a spring gland, a valve body, a spring seat, a valve core, a valve sleeve, an O-shaped ring, a check ring and an O-shaped ring, wherein one end in the valve body is provided with a valve sleeve hole, and the valve sleeve is arranged in the valve sleeve hole of the valve body; the other end in the valve body is provided with internal threads, and the outer surface of the valve body is provided with external threads which are connected with an overflow pipeline; a valve core hole and an inner sealing groove are formed in the valve sleeve, the valve core is installed in the valve core hole of the valve sleeve, and the O-shaped ring is installed in the sealing groove; the outer circle of the valve sleeve is provided with a sealing groove and an outer cylinder, and the o-shaped ring and the check ring are arranged in the sealing groove; the large end face of the spring seat is provided with a conical hole and an overflow port, the other end of the spring seat is provided with a spring limiting boss, and the spring seat is arranged in the valve body; one end of the spring is arranged on the spring limiting boss of the spring seat, and the other end of the spring is connected with the spring gland; the spring gland is provided with a liquid outlet and external threads, and is arranged in the valve body and connected with the valve body through threads; one end of the valve core is spherical and tangent to the taper hole in the spring seat, a hole is arranged in the valve core, and a small hole is arranged on the wall of the valve core.
The utility model discloses an overflow valve for coal mine, O type circle sealing valve rod and valve barrel hole.
The utility model discloses an overflow valve for coal mine, O type circle and retaining ring overflow valve are installed in the system's pipeline.
The utility model discloses an overflow valve for coal mine sets up the overflow valve and is the cartridge valve.
Compared with the prior art, the beneficial effects of the utility model are that: the pressure of the overflow valve is set by adjusting the compression length of the spring through the tightness degree of the spring seat, when the water pressure is higher than the set value pressure of the overflow valve, the overflow valve is opened, the spring seat is jacked open by the valve core, and the water flow overflows through the small hole in the wall of the valve core to enable the excessive flow to overflow back to the oil tank, so that the effect of releasing the pressure in the pipe and the safety protection effect are achieved.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a sectional view of the cartridge of the present invention;
FIG. 3 is a cross-sectional view of the spring seat of the present invention;
in the drawings, the reference numbers: 1. a spring gland; 2. a valve body; 3. a spring; 4. a spring seat; 5. a valve core; 6. a valve housing; 7. an O-shaped ring; 8. a retainer ring; 9. and an O-shaped ring.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the overflow valve for coal mine of the present invention comprises a spring gland 1, a valve body 2, a spring 3, a spring seat 4, a valve core 5, a valve sleeve 6, an O-shaped ring 7, a retainer ring 8 and an O-shaped ring 9, wherein a valve sleeve hole is formed at one end inside the valve body 2, and the valve sleeve 6 is installed in the valve sleeve hole of the valve body 2; the other end in the valve body 2 is provided with an internal thread, and the outer surface of the valve body 2 is provided with an external thread which is connected with an overflow pipeline; a valve core hole and an inner sealing groove are formed in the valve sleeve 6, the valve core 5 is installed in the valve core hole of the valve sleeve 6, and the O-shaped ring 9 is installed in the sealing groove; the outer circle of the valve sleeve is provided with a sealing groove and an outer cylinder, and an O-shaped ring 7 and a check ring 8 are arranged in the sealing groove; the big end face of the spring seat 4 is provided with a conical hole and an overflow port, the other end of the spring seat is provided with a spring limiting boss, and the spring seat 4 is arranged in the valve body 2; one end of the spring 3 is arranged on a spring limiting boss of the spring seat, and the other end of the spring is connected with the spring gland; the spring gland is provided with a liquid outlet and external threads, is arranged in the valve body 2 and is in threaded connection; one end of the valve core is spherical and is tangent to the taper hole in the spring seat, a hole is arranged in the valve core, and a small hole is arranged on the wall of the valve core; the pressure of the overflow valve is set by adjusting the compression length of the spring 3 through the tightness degree of the spring seat 4, when the water pressure is higher than the pressure of the set value of the overflow valve, the overflow valve is opened, the spring seat is jacked open by the valve core, and the water flow overflows through the small hole in the wall of the valve core to enable the surplus flow to overflow to the oil tank, so that the effect of releasing the pressure in the pipe and the safety protection effect are achieved.
The utility model relates to an overflow valve for coal mine, an O-shaped ring 9 seals the valve rod and the inner hole of a valve sleeve; leakage under normal water pressure is prevented by the O-ring 9.
The utility model discloses an overflow valve for coal mine, an o-shaped ring 7 and a check ring 8 overflow valve are arranged in a system pipeline; the o-ring 7 and the check ring 8 play a sealing role in the system pipeline.
The overflow valve for the coal mine is a cartridge valve; it is used together with the pressure reducing valve, and is convenient to install.
The utility model discloses an overflow valve for coal mine, it is at the during operation, comes spring 3's compression length through 4 elasticity degrees of adjusting spring seat, sets for overflow valve pressure size, and when the water pressure was higher than overflow valve setting value pressure, the overflow valve was opened, and the case backs down the spring seat, and the aperture overflow on the heavy valve core wall of rivers makes unnecessary flow overflow oil tank.
The overflow valve for the coal mine has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the overflow valve can be implemented as long as the beneficial effects are achieved; the utility model discloses a spring 3, O type circle 7, retaining ring 8 and O type circle 9 of overflow valve for the colliery are purchase on the market, and this industry technical staff only need according to its subsidiary instructions install and operate can.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The overflow valve for the coal mine is characterized by comprising a spring gland (1), a valve body (2), a spring (3), a spring seat (4), a valve core (5), a valve sleeve (6), an O-shaped ring (7), a check ring (8) and an O-shaped ring (9), wherein a valve sleeve hole is formed in one end inside the valve body (2), and the valve sleeve (6) is installed in the valve sleeve hole of the valve body (2); the other end in the valve body (2) is provided with an internal thread, and the outer surface of the valve body (2) is provided with an external thread which is connected with an overflow pipeline; a valve core hole and an inner sealing groove are formed in the valve sleeve (6), the valve core (5) is installed in the valve core hole of the valve sleeve (6), and the O-shaped ring (9) is installed in the sealing groove; the outer circle of the valve sleeve is provided with a sealing groove and an outer cylinder, and an o-shaped ring (7) and a check ring (8) are arranged in the sealing groove; the large end face of the spring seat (4) is provided with a conical hole and an overflow port, the other end of the spring seat is provided with a spring limiting boss, and the spring seat (4) is arranged in the valve body (2); one end of the spring (3) is arranged on the spring limiting boss of the spring seat, and the other end of the spring (3) is connected with the spring gland; the spring gland is provided with a liquid outlet and external threads, is arranged in the valve body (2) and is in threaded connection; one end of the valve core is spherical and tangent to the taper hole in the spring seat, a hole is arranged in the valve core, and a small hole is arranged on the wall of the valve core.
2. The overflow valve for coal mines as set forth in claim 1, wherein the O-ring (9) seals the valve stem and the inner bore of the valve housing.
3. An overflow valve for coal mines according to claim 2, characterized in that the overflow valve with o-ring (7) and retainer ring (8) is installed in the system piping.
4. An overflow valve for a coal mine as set forth in claim 3, wherein the overflow valve is a cartridge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120353926.4U CN214789238U (en) | 2021-02-08 | 2021-02-08 | Overflow valve for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120353926.4U CN214789238U (en) | 2021-02-08 | 2021-02-08 | Overflow valve for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789238U true CN214789238U (en) | 2021-11-19 |
Family
ID=78752896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120353926.4U Active CN214789238U (en) | 2021-02-08 | 2021-02-08 | Overflow valve for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789238U (en) |
-
2021
- 2021-02-08 CN CN202120353926.4U patent/CN214789238U/en active Active
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