CN102979539A - Three-purpose safety valve for single hydraulic prop - Google Patents
Three-purpose safety valve for single hydraulic prop Download PDFInfo
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- CN102979539A CN102979539A CN 201210568555 CN201210568555A CN102979539A CN 102979539 A CN102979539 A CN 102979539A CN 201210568555 CN201210568555 CN 201210568555 CN 201210568555 A CN201210568555 A CN 201210568555A CN 102979539 A CN102979539 A CN 102979539A
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Abstract
The invention provides a three-purpose safety valve for a single hydraulic prop. The three-purpose safety valve comprises a three-purpose valve body, wherein inner cavities are formed at both ends of the three-purpose valve body; the three-purpose valve body is sheathed inside a fly prevention device; the fly prevention device is in a U-shaped structure; and both ends of the fly prevention device are fixedly connected with the inner cavities at both ends of the three-purpose valve body through bolts. According to the three-purpose safety valve for single hydraulic props provided by the invention, the three-purpose valve body and the fly prevention device can be separated for using and carrying, which is convenient for assembling or disassembling the three-purpose valve directly in the field, so that the safety of field operation is improved, while the damage to electromechanical devices caused by the impact of a flying valve is avoided, and the production safety is ensured.
Description
Technical field
The present invention relates to a kind of safety of coal mines suspension device, relate in particular to a kind of hydraulic prop three-purpose safety valve.
Background technology
Along with the gradual perfection of coal-mining technique, high-grade common coal mining face adopts the hydraulic prop top board in China's extensive use, and has obtained good technical economic benefit.Hydraulic prop is a kind of support equipment of new environment-friendly type, both can adopt face timbering top board and fully-mechanized mining working supporting termination for high-grade conventional mining and big gun with metal hinge top beam is supporting, also can do separately a post or other temporary supporting usefulness, become one of main support apparatus of coal-face.Hydraulic prop is applicable to seam inclination less than the inclined seam stope of 25 degree-35 degree, and roof falls behind the recovery that does not affect pillar, and base plate should not be excessively soft, and pillar is pressed into the integrality that bottom plate depth does not worsen base plate, otherwise should strengthen base.When in the softer blast mining face of ature of coal, using, the cylinder coating surface of living is taked safeguard measure, in case crumble.Pillar cooperates with timber cap or when doing a some post and using, should change top cover into cap, in order to avoid damage wooden frame.
And triple-use valve is the key component of hydraulic prop, and it plays a part liquid filling pole-raising, overload overflow, lets out to carry and fall post.Triple-use valve is located on the hydraulic prop, and the inside of hydraulic prop is provided with the pressure-acting chamber.Hydraulic prop is take pumping plant as power source, realizes setting prop by pipe-line system and fluid injection gun, opens the feather valve of triple-use valve when pillar reclaims by the unloading handgrip, and intracavity liquid sprays into the goaf, realizes prop drawing.When coal-face machine air way mouth, trident door, four fork door use hydraulic props, though require to be parallel to rib, but triple-use valve is still facing to employee's health, when face pressure large, hydraulic prop is subject to surge, because significantly the increasing of instantaneous pressure, the spool that can cause triple-use valve flies out valve body and causes and fly valve under the high pressure of liquid, will cause to the employee at scene serious security threat.
Summary of the invention
The present invention will solve above-mentioned deficiency exactly, and a kind of simple in structure, hydraulic prop three-purpose safety valve that safety is good is provided, and prevents from going out the bottom spool valve body that flies out, the safety that improves coal-face in accident.
In order to reach above-mentioned effect, the invention provides a kind of hydraulic prop three-purpose safety valve, comprise the triple-use valve body, the two ends of described triple-use valve body are provided with inner chamber, the triple-use valve body is set in the anti-device inside that flies, describedly anti-fly device and be U-shaped structure, the anti-two ends that fly device are fixed with the inner chamber at triple-use valve body two ends by bolt and are connected.
For fear of the damage that causes triple-use valve, the inner chamber of the top of described bolt and triple-use valve body leaves the space of 2-4mm, and bolt just can not prop up ball and the screw mandrel of triple-use valve inside like this, and causes the damage of triple-use valve.
The described anti-device that flies is steel plate one bending and molding.
When using triple-use valve, first the triple-use valve body is located on the hydraulic prop and perpendicular to the central axis of hydraulic prop, so in use, hydraulic prop is applicable to the coal seam stope of level or inclination, namely perpendicular to the seam mining work plane.When the seam mining work plane was horizontal, hydraulic prop vertically extended, the central axis along continuous straight runs of triple-use valve extends; When the seam mining work plane was skewed, perpendicular to the work plane of this inclination, the central axis of corresponding triple-use valve still kept vertical with work plane to hydraulic prop equally, but forms an angle of slope with horizontal plane.Then fly device in that the two ends of triple-use valve cutting ferrule is anti-, and be fixed with bolt, the space of 2-4mm will be left in the top of its tightening latch in the inner chamber of triple-use valve, avoids propping up the ball of triple-use valve inside and screw mandrel and causes the damage of triple-use valve.Be subject to surge when hydraulic prop and cause flying out valve body under the high pressure of spool at liquid of triple-use valve and cause when flying valve, prevent that flying device utilizes 90 ° curved design and the flexibility of material plate own, and stop flying out of triple-use valve, ensured staff's safety.
So the present invention has following beneficial effect:
1, hydraulic prop of the present invention with triple-use valve body in the three-purpose safety valve with anti-fly device can separate use, easy to use;
2, the anti-volume that flies device is little, and carrying portable, simplicity of design are directly installed or removed triple-use valve at the scene easily, and be easy to operate.
3, the safety triple-use valve is safe, has avoided triple-use valve when flying valve, the personal injury that the employee is caused; Simultaneously also avoid flying valve jacket to the damage of electromechanical equipment, for the employee has created safe production environment, thereby greatly improved employee's job enthusiasm, ensured safety in production.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present invention;
Fig. 2 is that triple-use valve of the present invention is installed in the schematic diagram on the hydraulic prop.
Among the figure: 1-triple-use valve body, 2-is anti-to fly device, 3-bolt, 4-hydraulic prop.
The specific embodiment
As shown in Figure 1, a kind of hydraulic prop three-purpose safety valve, comprise triple-use valve body 1, the two ends of described triple-use valve body 1 are provided with inner chamber, triple-use valve body 1 is set in anti-device 2 inside that fly, describedly anti-fly device 2 and be the U-shaped structure of steel plate one bending and molding, the two ends of preventing flying device 2 are fixed with the inner chamber at triple-use valve body 1 two ends by bolt 3 and are connected.The inner chamber of the top of described bolt 3 and triple-use valve body 2 leaves the space of 2mm, and bolt 3 just can not prop up ball and the screw mandrel of triple-use valve inside like this, guarantees the safety of triple-use valve.
As shown in Figure 2, triple-use valve body 1 is located on the hydraulic prop 4 and perpendicular to the central axis of hydraulic prop 4, the two ends of described triple-use valve body 1 are provided with inner chamber, triple-use valve body 1 is set in anti-device 2 inside that fly, describedly anti-fly device 2 and be the U-shaped structure of steel plate one bending and molding, the two ends of preventing flying device 2 are fixed with the inner chamber at triple-use valve body 1 two ends by bolt 3 and are connected.The inner chamber of the top of described bolt 3 and triple-use valve body 2 leaves the space of 4mm, and bolt 3 just can not prop up ball and the screw mandrel of triple-use valve inside like this, guarantees the safety of triple-use valve.
Hydraulic prop of the present invention can separate and uses, carries with triple-use valve body in the three-purpose safety valve and the anti-device that flies, conveniently directly triple-use valve is installed or removed at the scene, improved the safety of field operation, avoided triple-use valve when flying valve, the personal injury that the employee is caused; Simultaneously also avoid flying valve jacket to the damage of electromechanical equipment, for the employee has created safe production environment, thereby greatly improved employee's job enthusiasm, ensured safety in production.
Above embodiment is not limited only to protection scope of the present invention, all make amendment based on basic thought of the present invention or change all belong to protection scope of the present invention.
Claims (3)
1. hydraulic prop three-purpose safety valve, comprise the triple-use valve body, it is characterized in that: the two ends of described triple-use valve body are provided with inner chamber, the triple-use valve body is set in the anti-device inside that flies, describedly anti-fly device and be U-shaped structure, the anti-two ends that fly device are fixed with the inner chamber at triple-use valve body two ends by bolt and are connected.
2. hydraulic prop three-purpose safety valve according to claim 1, it is characterized in that: the inner chamber of the top of described bolt and triple-use valve body leaves the space of 2-4mm.
3. hydraulic prop three-purpose safety valve according to claim 1 is characterized in that: the described anti-device that flies is steel plate one bending and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210568555 CN102979539A (en) | 2012-12-11 | 2012-12-11 | Three-purpose safety valve for single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210568555 CN102979539A (en) | 2012-12-11 | 2012-12-11 | Three-purpose safety valve for single hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102979539A true CN102979539A (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210568555 Pending CN102979539A (en) | 2012-12-11 | 2012-12-11 | Three-purpose safety valve for single hydraulic prop |
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| Country | Link |
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| CN (1) | CN102979539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982209A (en) * | 2014-05-25 | 2014-08-13 | 胡建军 | Individual hydraulic prop safety protection device |
| CN111005746A (en) * | 2019-12-28 | 2020-04-14 | 扬州瀚泰机械有限公司 | Three-purpose valve for single hydraulic prop |
-
2012
- 2012-12-11 CN CN 201210568555 patent/CN102979539A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982209A (en) * | 2014-05-25 | 2014-08-13 | 胡建军 | Individual hydraulic prop safety protection device |
| CN111005746A (en) * | 2019-12-28 | 2020-04-14 | 扬州瀚泰机械有限公司 | Three-purpose valve for single hydraulic prop |
| CN111005746B (en) * | 2019-12-28 | 2021-04-30 | 扬州瀚泰机械有限公司 | Three-purpose valve for single hydraulic prop |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |