CN2075257U - Liquid filling gun with pressure display - Google Patents
Liquid filling gun with pressure display Download PDFInfo
- Publication number
- CN2075257U CN2075257U CN 90219065 CN90219065U CN2075257U CN 2075257 U CN2075257 U CN 2075257U CN 90219065 CN90219065 CN 90219065 CN 90219065 U CN90219065 U CN 90219065U CN 2075257 U CN2075257 U CN 2075257U
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- CN
- China
- Prior art keywords
- pressure
- pressure display
- valve body
- body group
- display unit
- 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.)
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Abstract
The utility model provides a liquid filling gun with pressure display used for the prop raise of a single hydraulic prop under a well of a coal mine. The liquid filling gun with pressure display is characterized in that a spring pressure display is arranged in an installing hole on the rear part of a gun body. A pressure display rod and the top surface and the back surface of the gun body are all in angles of 45 DEG. The upper end of an indicating rod is provided with three annular grooves for displaying the size of pressure. Indicating pressure is respectively (7, 10, 15) MP-[a]. The pressure of prop raise can be ensured to come up to the standard according to that a one-way valve is displayed and operated by the indicating rod. The utility model has the advantages of simple structure, small size, convenient operation, and exact and convenient observing. The spring pressure display can not be easily damaged.
Description
The utility model relates to a kind of improved, is used for the pressure of hydraulic prop setting prop under the coal mine is shown fluid injection gun.
The pressure display unit of existing fluid injection gun is installed in top or the rear portion outside the rifle body, when using, the down-hole has following defective: 1, to more than 2.5 meters during the hydraulic prop fluid injection, pressure display unit is observed difficulty, thereby can not effectively guarantee the setting load standard up to specification of hydraulic prop; When 2, carrying out fluid injection under the situation of beam that hydraulic prop below 1.8 meters is not pinched, the fluid injection gun pressure display unit is at most plate and operator inconvenience observation easily; 3, to intensive when installing the hydraulic prop fluid injection, pressure display unit hinders operation; 4, poor because of the down-hole environment for use, pressure display unit is easily collided and is caused damage.
The purpose of this utility model will provide a kind of can overcome above-mentioned shortcoming, has simple and reasonable, easy to use and reliable, robust pressure and shows fluid injection gun.
The utility model is realized as follows: the valve body group that shows fluid injection gun with pressure is a housing, in the installing hole with the pressure display unit place, inclined-plane, valve body group upper back of packing into for sleeping in, adopt thread connecting mode that pressure display unit and valve body group are fixed as one, the axis of installing hole end face and back plane best and the valve body group all are 45, and pressure display unit is chewed with one way valve, fluid injection and is communicated with.
The utility model is described in further detail below with reference to drawings and Examples:
Fig. 1 is the longitudinal sectional drawing of a kind of concrete structure of the utility model.
Fig. 2 is the sectional drawing of pressure display unit (2).
With reference to Fig. 1, the inclined-plane is processed in valve body group (1) upper back, and in this center, inclined-plane according to installing hole of concrete dimensioned of pressure display unit (2), in installing hole, be provided with internal thread, adopt housing pin (8) with in the installing hole on pressure display unit (2) the valve body group (1) of packing into for sleeping in, the axis of installing hole preferably and the end face and the back plane of valve body group (1) all be 45, and be 90 ° of right angles with the inclined-plane of valve body group (1) upper back.
With reference to Fig. 2, pressure display unit (2) is a housing with the installing hole on the valve body group (1), is made up of piston rod (12), back-up ring (11), " O " type O-ring seal (13), spring base (15), indicating arm (7), cottor pin (9), spring (5), packing ring (6), positioning sleeve (14), housing pin (8), hold-down ring (10).Piston rod (12) lower end is communicated with hydraulic cavities, and its upper end is adopted with spring base (15) and freely is connected.Indicating arm (7) adopts with spring base (15) and is threaded, and cottor pin (9) is fixing.Be provided with three grooves that are used to show the pressure size on indicating arm (7) top, its pressure show value is respectively 7MPa; 10MPa; 15MPa.Spring (5) is the whether accurate key component of pressure display unit (2), preferably adopts the 65Mn material to make, and housing pin (8) is mainly used in display (2) and valve body group (1) are fixed as one.
During use, pulling valve handle (4) opens one way valve (3), under the effect of highly pressurised liquid, the resistance that piston rod (12) overcomes spring (5) promotes the top that indicating arm (7) stretches out pressure display unit (2), and pressure reaches 7MPa when article one groove of indicating arm (7) exposes fully; Pressure is respectively 10MPa and 15MPa when second and third groove exposes fully.
The utility model has following advantage than prior art:
1, the rear portion of the sleeping fluid injection gun of packing into of pressure display unit, its axis and rifle body end face and back plane all are 45° angle, make operation more convenient accurately.
2, owing to the sleeping rifle body of packing into of pressure display unit, effectively solved the loss that is easily caused by collision because of down-hole environment for use difference display part, also improved accuracy and the reliability of pressure display unit simultaneously.
Claims (4)
1, a kind ofly is suitable for hydraulic prop fluid injection under the coal mine and shows that the pressure of pressure shows fluid injection gun, form by feed tube, valve body group, one way valve, pressure display unit, liquid injection pipe, lock sleeve, valve handle, it is characterized in that: pressure display unit (2) is a housing with valve body group (1), crouches to be contained in the installing hole at place, valve body group (1) inclined-plane, upper back.
2, pressure according to claim 1 shows fluid injection gun, and it is characterized in that: pressure display unit (2) is made up of housing pin (8), indicating arm (7), spring base (15), spring (5), hold-down ring (10), positioning sleeve (14), piston rod (12), packing ring (6), " O " type O-ring seal (13), back-up ring (11), cottor pin (9) and valve body group (1).
3, pressure according to claim 1 and 2 shows fluid injection gun, it is characterized in that being provided with in the pressure display unit installing hole of valve body group (1) being used for crouching the also internal thread of fixation pressure display (2) of dress.
4, show fluid injection guns according to claim 1 or 2 or 3 described pressure, it is characterized in that: the axis of pressure display unit (2) preferably and the end face and the back plane of valve body group (1) all be 45, and be 90 ° of right angles with the inclined-plane of valve body group (1) upper back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219065 CN2075257U (en) | 1990-09-19 | 1990-09-19 | Liquid filling gun with pressure display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219065 CN2075257U (en) | 1990-09-19 | 1990-09-19 | Liquid filling gun with pressure display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2075257U true CN2075257U (en) | 1991-04-17 |
Family
ID=4897789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90219065 Withdrawn CN2075257U (en) | 1990-09-19 | 1990-09-19 | Liquid filling gun with pressure display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2075257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912295A (en) * | 2014-04-04 | 2014-07-09 | 济宁何岗煤矿 | Novel moving quick manual prop lift |
-
1990
- 1990-09-19 CN CN 90219065 patent/CN2075257U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912295A (en) * | 2014-04-04 | 2014-07-09 | 济宁何岗煤矿 | Novel moving quick manual prop lift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |