CN202731965U - Controllable pressure relief wind tube - Google Patents

Controllable pressure relief wind tube Download PDF

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Publication number
CN202731965U
CN202731965U CN 201220291611 CN201220291611U CN202731965U CN 202731965 U CN202731965 U CN 202731965U CN 201220291611 CN201220291611 CN 201220291611 CN 201220291611 U CN201220291611 U CN 201220291611U CN 202731965 U CN202731965 U CN 202731965U
Authority
CN
China
Prior art keywords
pressure relief
wind
air duct
operating handle
screw rod
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.)
Expired - Fee Related
Application number
CN 201220291611
Other languages
Chinese (zh)
Inventor
王宏伟
王鹏军
赵田富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Asian American Daning Energy Co Ltd
Original Assignee
Shanxi Asian American Daning Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanxi Asian American Daning Energy Co Ltd filed Critical Shanxi Asian American Daning Energy Co Ltd
Priority to CN 201220291611 priority Critical patent/CN202731965U/en
Application granted granted Critical
Publication of CN202731965U publication Critical patent/CN202731965U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a controllable pressure relief wind tube which can adjust wind pressure on a driving working face and wind supply quantity and comprises a tube body. A pressure relief hole is opened on the wall of the tube body, a supporting structure is fixed above the pressure relief hole, and an operating handle is connected to the supporting structure in a rotating mode. A screw hole is arranged in the middle of the operating handle, a lifting screw rod is installed into the screw hole, the lower end of the lifting screw rod is connected with the middle portion of the wind-shield baffle, and only one end of the wind-shield baffle is connected to one side of the pressure relief hole in a hinged mode. The wind tube can be directly connected to a wind outlet of the tube body. When wind quantity needs adjusting, the handle is rotated to enable the lifting screw rod to move downward, and the wind-shield baffle is opened along with the movement of the lifting screw rod and adjusted to a corresponding scale according to the required pressure relief wind quantity. The controllable pressure relief wind tube has the advantages of being safe, reliable and convenient to operate.

Description

Controllable type release air duct
Technical field
The utility model relates to a kind of air duct, specifically a kind of air duct for coalmine ventilation.
Background technology
In coal production, along with the continuous increase of the pit mining degree of depth, the gas emission of driving face also increases in succession, and is therefore, long more and more important to coal mine production safety apart from local ventilation.For solving the drawing-off gas problem, usually adopt high-power air duct to air supply of working face, but the problem that air duct is bad by blowing, disconnect often occurs, can cause at short notice a large amount of gas accumulations.Therefore, need a kind of device that can regulate driving face blast and wind supply quantity, by blast and air quantity are reached the purpose of avoiding air duct to damage.
Summary of the invention
The purpose of this utility model provides a kind of controllable type release air duct that can regulate driving face blast and wind supply quantity.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of controllable type release air duct, comprise cylindrical shell, have pressure relief vent on the barrel wall, the pressure relief vent top is fixed with braced structures, be rotatably connected to operating handle on the braced structures, the operating handle middle part is provided with screw, the lifting screw rod of packing in the screw, lifting screw rod lower end connects the verge board middle part, and a verge board only end is articulated in pressure relief vent one side.
Air duct can directly connect with the cylindrical shell air outlet on, when need regulating component, rotating handles moves downward the lifting screw rod, verge board is opened with the action of lifting screw rod, according to the needs of release air quantity, verge board is adjusted to corresponding scale.
Controllable type release air duct described in the utility model has advantages of safety, reliable, convenient operation, after the driving face local ventilation system is installed, have following advantage: (1) firedamp drainage, when driving face recovers air feed, can prevent from cancelling all things together control air quantity, limited drainage.(2) when the supporting operation, reduce driving face air feed air quantity, create good working environment.(3) use during the roadway linking of horizontal river, be convenient to air quantity and regulate, be particularly suitable for the grid type tunnel and arrange, horizontal river roadway linking is many.
Description of drawings
Fig. 1 is the perspective view of the utility model controllable type release air duct.
Fig. 2 is the front view of the utility model controllable type release air duct.
The right view of Fig. 3 Fig. 2.
Fig. 4 is the top view of Fig. 2.
Among the figure, the 1-cylindrical shell, the 2-pressure relief vent, the 3-operating handle, 4-lifts by crane screw rod, 5-verge board, 6-supporting seat, 7-gripper shoe, 8-flow-disturbing piece, 9-contact-making switch fixed block, 10-flange.
The specific embodiment
Below in conjunction with accompanying drawing controllable type release air duct described in the utility model is done and to be specified.
A kind of controllable type release air duct described in the utility model, as shown in Figure 1, comprise cylindrical shell 1, the cylindrical shell both sides are respectively air intake and air outlet, have pressure relief vent 2 on cylindrical shell 1 wall, pressure relief vent 2 tops are fixed with braced structures, be rotatably connected to operating handle 3 on the braced structures, operating handle 3 middle parts are provided with screw, pack in the screw and lift by crane screw rod 4, lifting screw rod 4 lower ends connect verge board 5 middle parts, and verge board 5 an only end is articulated in pressure relief vent 2 one sides, and operating handle 3 and braced structures have the multiple structure that well known to a person skilled in the art to select.
The utility model provides a kind of concrete behaviour's body grip structure, shown in Fig. 1,2,3,4, comprises rotating disk and the spoke that is connected with rotating disk, and the cross part of spoke is provided with screw.
The utility model provides a kind of concrete braced structures, shown in Fig. 1,2,3,4, comprises the supporting seat 6 that is fixed on the pressure relief vent edge, and supporting seat 6 middle parts are fixed with gripper shoe 7, and gripper shoe 7 is rotationally connected with operating handle 3.
As shown in Figure 2, on the inwall of cylindrical shell 1 air intake one end flow-disturbing piece 8 is housed.The flow-disturbing piece is to have obvious step place to add the down draught device of weldering in the air duct inboard, and its effect one is for reducing windage; The 2nd, the damage that moment causes sealing when opening or closing for reducing verge board.Air intake is provided with flange 10, is convenient to connect booster.
Cylindrical shell 1 air outlet one end is established 20 ° of elevations angle, conveniently is connected with air duct, reduces windage.
Shown in Fig. 1,4, be fixed with contact-making switch fixed block 9 on the described braced structures, contact-making switch is fixed on the contact-making switch fixed block 9, the convenient contact-making switch of installing.

Claims (6)

1. controllable type release air duct, comprise cylindrical shell (1), it is characterized in that: have pressure relief vent (2) on cylindrical shell (1) wall, pressure relief vent (2) top is fixed with braced structures, be rotatably connected to operating handle (3) on the braced structures, operating handle (3) middle part is provided with screw, the lifting screw rod (4) of packing in the screw, lifting screw rod (4) lower end connects verge board (5) middle part, and verge board (a 5) only end is articulated in pressure relief vent (2) one sides.
2. controllable type release air duct according to claim 1, it is characterized in that: operating handle (3) comprises rotating disk and the spoke that is connected with rotating disk, and the cross part of spoke is provided with screw.
3. controllable type release air duct according to claim 1 and 2, it is characterized in that: described braced structures comprises the supporting seat (6) that is fixed on the pressure relief vent edge, supporting seat (6) middle part is fixed with gripper shoe (7), and gripper shoe (7) is rotationally connected with operating handle (3).
4. controllable type release air duct according to claim 1 and 2 is characterized in that: on the inwall of cylindrical shell (1) air intake one end flow-disturbing piece (8) is housed.
5. controllable type release air duct according to claim 1 and 2, it is characterized in that: cylindrical shell (1) air outlet one end is established 20 ° of elevations angle.
6. controllable type release air duct according to claim 1 and 2 is characterized in that: be fixed with contact-making switch fixed block (9) on the described braced structures.
CN 201220291611 2012-06-20 2012-06-20 Controllable pressure relief wind tube Expired - Fee Related CN202731965U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220291611 CN202731965U (en) 2012-06-20 2012-06-20 Controllable pressure relief wind tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220291611 CN202731965U (en) 2012-06-20 2012-06-20 Controllable pressure relief wind tube

Publications (1)

Publication Number Publication Date
CN202731965U true CN202731965U (en) 2013-02-13

Family

ID=47657677

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220291611 Expired - Fee Related CN202731965U (en) 2012-06-20 2012-06-20 Controllable pressure relief wind tube

Country Status (1)

Country Link
CN (1) CN202731965U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194235A (en) * 2016-09-09 2016-12-07 西安科技大学 Manual type colliery tunneling ventilation air duct air outlet regulation device
CN109578044A (en) * 2018-11-19 2019-04-05 西安科技大学 The comprehensive pick face wind flow field PLC formula intelligent controlling device of coal mine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194235A (en) * 2016-09-09 2016-12-07 西安科技大学 Manual type colliery tunneling ventilation air duct air outlet regulation device
CN106194235B (en) * 2016-09-09 2018-07-06 西安科技大学 Hand coal mine tunneling ventilation air duct air outlet regulation device
CN109578044A (en) * 2018-11-19 2019-04-05 西安科技大学 The comprehensive pick face wind flow field PLC formula intelligent controlling device of coal mine

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20140620