CN2112007U - Self-control pressure priming gun - Google Patents
Self-control pressure priming gun Download PDFInfo
- Publication number
- CN2112007U CN2112007U CN 92211037 CN92211037U CN2112007U CN 2112007 U CN2112007 U CN 2112007U CN 92211037 CN92211037 CN 92211037 CN 92211037 U CN92211037 U CN 92211037U CN 2112007 U CN2112007 U CN 2112007U
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- CN
- China
- Prior art keywords
- control
- gun
- liquid filling
- utility
- model
- 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.)
- Granted
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Abstract
The utility model relates to a pressure self-control liquid filling gun, which belongs to a liquid filling tool used for mine hydraulic support equipment. The utility model is characterized in that a trapezoidal slot is arranged on a top rod 9, and the position of an open hole on the left edge of a gun body 10 is provided with a control device seat 7. The inner part of the gun body 10 is orderly provided with a steel ball 11 and a control spring 8, and the outer surface of the gun body 10 is spirally provided with a relaxing nut 6 and an adjusting screw 5. Thereby, the pressure self-control liquid filling gun substitutes for a complicated plunger piston device in the existing pressure self-control liquid filling gun. The utility model has the advantages of simple structure, convenient operation, low production cost, etc.; in addition, a few of control elements are needed without adding a sealed link.
Description
The utility model belongs to the fluid injection instrument of mining hydraulic prop equipment.
The setting load of mine individual hydraulic prop is that outer fluid injection body produces, and the size of its setting load has direct relation with factors such as outer fluid injection body pressure and fluid injection operations.Present widely used manual mode fluid injection gun, its fluid injection termination pressure are to depend on the operator fully, therefore often cause the setting load discreteness of pillar very big, have greatly influenced the supporting performance of pillar.The existing pressure automatic control fluid injection gun of report all is to adopt the extra-column plug device as pressure control valve bar none at present.Owing to increase additional plunger, therefore just bring problems such as sealing performance decline, complex structure and manufacturing cost increase, give to apply and bring some obstacles.
The purpose of this utility model be the design a kind of simple in structure, cost is low and the pressure automatic control fluid injection gun of reliable operation.
Technical solution of the present utility model: followingly with reference to the accompanying drawings the course of work of the present utility model and implementation method are summarized as follows: the operator is pressed into push rod 9 by handgrip 2, when push rod 9 is pressed into certain distance, steel ball 11 enters under the effect of control spring 8 in the dovetail groove of push rod 9, and push rod 9 is pinned.Meanwhile, the right-hand member of push rod 9 pushes up one way valve steel ball 13 from unidirectional valve seat 12, thereby B chamber and C chamber are communicated.Wherein the B chamber communicates with external pumping plant, and the C chamber communicates with the triple-use valve of hydraulic prop through liquid injecting mouth 1, can finish the fluid injection process to hydraulic prop this moment when the pumping plant feed flow.Before not being subjected to working resistance by the hydraulic prop of fluid injection, the fluid injection process is in the operating on low voltage state, and push rod 9 is still pinned by steel ball 11.After being subjected to working resistance by the hydraulic prop of fluid injection, liquid filling pressure begins to raise, this pressure also reflexes in the fluid injection gun simultaneously, when liquid filling pressure is elevated to certain value (setting value), the hydraulic coupling that acts on push rod 9 right-hand members is enough to overcome the coupling mechanism force of steel ball 11, and make push rod 9 begin to be moved to the left, and fluid injection and enter pressure display module 16 through liquid outlet C, liquid filling pressure can be shown in real time by pressure display module 16.Meanwhile, one way valve steel ball 13 under the effect of back-moving spring 14 and push rod 9 be moved to the left synchronously, and final compress with unidirectional valve seat 12, make inlet B and liquid outlet C isolated, the end of fluid injection process.The fluid injection final pressure realizes that by the pretightning force of adjusting 5 pairs of control springs 8 of screw this pressure can be adjustable continuously within the specific limits.Nut 6 is loosened in rotation can make control spring 8 freedoms of entry or impaction state, thereby reaches unblanking or the locking effect of control 11 pairs of push rods 9 of steel ball.When be used to fire blank shots test solution or other need the emergency shutdown situation, unclamp as long as will loosen nut 6, make 11 pairs of push rods 9 of steel ball lose locking action and get final product.
The utility model has the advantages that: 1, do not adopt the extra-column plug device, only push rod is carried out architecture advances and increases a small amount of control element, thereby make simple in structurely, cost of production is low; 2, control element processing is simple, additional seal link not, reliable operation; 3, compact conformation, easy to operate, labor strength is low.
Description of drawings: Fig. 1 is a basic block diagram of the present utility model.
Fig. 2 is the A--A cut-away view of Fig. 1.
In the accompanying drawing: the 1--liquid injecting mouth; The 2--handgrip; The 3--feed tube; The 4--lock sleeve; 5--adjusts screw; 6--loosens nut; 7--control device seat; The 8--control spring; The 9--push rod; 10 ┄ rifle bodies; 11 ┄ steel balls; The unidirectional valve seat of 12 ┄; 13 ┄ valve balls; 14 ┄ back-moving springs; 15 ┄ housing screws; 16 ┄ pressure display modules; B ┄ inlet; C ┄ liquid outlet.
Attached Fig. 1 and 2 is an embodiment of the present utility model.The utility model is liquid injecting mouth 1, handgrip 2, feed tube 3, lock sleeve 4, pressure display module 16, push rod 9, unidirectional valve seat 12, valve ball 13 are housed respectively on rifle body 10, again control device seat 7 are housed for spring 14, housing screw 15 with on rifle body 10 left sides, pack into successively in the inside of control device seat 7 steel ball 11 and control spring 8, be screwed with in the outside of control device seat 7 and loosen nut 6, institutes such as adjusting screw 5 is housed on the nut 6 forms loosening.
Claims (2)
1, a kind of pressure automatic control fluid injection gun, by liquid injecting mouth 1, handgrip 2, feed tube 3, lock sleeve 4 being housed on rifle body 10, showing that institutes such as pressure assembly 16, push rod 9, unidirectional valve seat 12, valve ball 13, back-moving spring 14, housing screw 15 and control device seat 7 form, and is characterized in that:
A has a dovetail groove on push rod 9;
B, tapping is equipped with control device seat 7 on the left side of rifle body 10.
2, pressure automatic control fluid injection gun according to claim 1 is characterized in that the inside of said control device seat 7 is equipped with steel ball 11 and control spring 8 successively, is screwed with in its outside and loosens nut 6 and adjust screw 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211037 CN2112007U (en) | 1992-01-04 | 1992-01-04 | Self-control pressure priming gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211037 CN2112007U (en) | 1992-01-04 | 1992-01-04 | Self-control pressure priming gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2112007U true CN2112007U (en) | 1992-08-05 |
Family
ID=4956099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92211037 Granted CN2112007U (en) | 1992-01-04 | 1992-01-04 | Self-control pressure priming gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2112007U (en) |
-
1992
- 1992-01-04 CN CN 92211037 patent/CN2112007U/en active Granted
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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 |