An opening device for a smart normally closed emergency shut-off valve

Abstract

The utility model discloses an opening device for intelligence normally closed emergency cut -out valve, including top, first drive unit and second drive unit, first drive unit with second drive unit all install in top, top is equipped with gear channel and rack channel, gear channel with rack channel intercommunication, one end of gear channel is equipped with safety flap. The utility model discloses an opening device for intelligence normally closed emergency cut -out valve, and it links together through top, first drive unit and second drive unit, and drives the driving rod of cut -out valve through rotating handle and thereby driving the action of pivot gear and middle axle rack, and then makes the valve piece carry out quick lifting, realizes quick opening, and it has stable structure, convenient operation and high safety and the like.

Description

Technical Field

[0001] This utility model belongs to the field of gas shut-off valve technology, specifically relating to an opening device for an intelligent normally closed emergency shut-off valve. Background Technology

[0002] A gas emergency shut-off (electromagnetic) valve is a safety device mainly used in gas transmission and distribution systems to cut off the gas supply when a gas leak or other emergency is detected, in order to prevent accidents.

[0003] When a gas emergency shut-off valve is opened, the valve plate needs to be lifted to connect the input and output ends of the shut-off valve, allowing gas to be transmitted. During opening, the gas exerts downward pressure on the valve plate; this pressure can be very high if the valve plate is large, making manual opening difficult.

[0004] Therefore, further improvements will be made to address the aforementioned issues. Utility Model Content

[0005] The main purpose of this utility model is to provide an opening device for an intelligent normally closed emergency shut-off valve. It is linked by a top cover, a first drive unit and a second drive unit. By rotating the handle, the rotating shaft gear and the central shaft rack are driven to move, thereby driving the drive rod of the shut-off valve, which in turn causes the valve plate to be lifted quickly, thus achieving rapid opening. It has the advantages of stable structure, convenient operation and high safety.

[0006] To achieve the above objectives, this utility model provides an opening device for an intelligent normally closed emergency shut-off valve (for manual opening of an emergency gas shut-off valve), comprising a top cover, a first drive unit, and a second drive unit, wherein both the first drive unit and the second drive unit are mounted on the top cover, wherein:

[0007] The top cover is provided with a gear channel and a rack channel, the gear channel and the rack channel are connected, and a safety flip cover is provided at one end of the gear channel;

[0008] The first drive unit includes a handle, a connecting tube, a return spring, and a rotating gear. The first end of the handle is fixedly installed on the first end of the connecting tube, and the first end of the handle is provided with a locking block. The locking block is used to install in the lock hole of the safety flip cover (when the safety flip cover is in the installed state, the locking block is installed in the lock hole, so the handle cannot be rotated, and thus the shut-off valve cannot be opened; when the safety flip cover is opened, the locking block disengages from the lock hole, so the handle can be rotated, thereby opening the shut-off valve); the second end of the connecting tube and the rotating gear are both built into the gear channel, and the second end of the connecting tube is provided with a connecting groove. The return spring is sleeved on the second end of the connecting tube. The end of the rotating gear near the connecting tube is provided with a connecting protrusion, and the connecting groove is used to insert into the protrusion (matching the shape of the connecting groove, so that the rotating gear can be rotated by rotating the connecting tube during insertion).

[0009] The second drive unit includes a central rack, a display cap, and a (transparent) cover. The central rack is installed in the rack channel and meshes with the rotating shaft gear. The display cap is fixedly installed on the top of the central rack. The cover covers the display cap and is fixedly installed on the top of the rack channel.

[0010] As a further preferred embodiment of the above technical solution, the second end of the handle is a handheld part.

[0011] As a further preferred embodiment of the above technical solution, the bottom end of the central rack is connected to the valve plate via a drive rod.

[0012] As a further preferred embodiment of the above technical solution, a gasket is provided between the cover and the rack channel.

[0013] As a further preferred embodiment of the above technical solution, the top cover is installed on the body of the shut-off valve. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of this utility model.

[0017] Figure 4 This is a cross-sectional view of the present invention installed on a shut-off valve.

[0018] The reference numerals in the accompanying drawings include: 110, body; 210, top cover; 211, gear channel; 212, rack channel; 213, safety flip cover; 220, first drive unit; 221, handle; 222, connecting tube; 223, return spring; 224, shaft gear; 225, locking block; 226, connecting groove; 227, protruding end; 230, second drive unit; 231, central rack; 232, display cap; 233, cover; 310, drive rod; 320, valve plate. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0020] This utility model discloses an opening device for an intelligent normally closed emergency shut-off valve. The specific embodiments of the utility model are further described below with reference to preferred embodiments.

[0021] In the embodiments of this utility model, those skilled in the art will note that the shut-off valve, drive rod, and valve plate involved in this utility model can be regarded as prior art.

[0022] Preferred embodiment.

[0023] like Figure 1-4 As shown, this utility model discloses an opening device for an intelligent normally closed emergency shut-off valve (for manual opening of an emergency gas shut-off valve), including a top cover 210, a first drive unit 220, and a second drive unit 230. Both the first drive unit 220 and the second drive unit 230 are mounted on the top cover 210, wherein:

[0024] The top cover 210 is provided with a gear channel 211 and a rack channel 212, the gear channel 211 and the rack channel 212 are connected, and a safety flip cover 213 is provided at one end of the gear channel 211;

[0025] The first drive unit 220 includes a handle 221, a connecting pipe 222, a return spring 223, and a rotating shaft gear 224. The first end of the handle 221 is fixedly installed on the first end of the connecting pipe 222, and the first end of the handle 221 is provided with a locking block 225. The locking block 225 is used to install in the lock hole of the safety flip cover 213 (when the safety flip cover is in the installed state, the locking block is installed in the lock hole, thus preventing the handle from rotating and thus preventing the shut-off valve from opening; when the safety flip cover is opened, the locking block disengages from the lock hole, thus allowing the handle to rotate). (And open the shut-off valve); the second end of the connecting pipe 222 and the rotating shaft gear 224 are both built into the gear channel 211, and the second end of the connecting pipe 222 is provided with a connecting groove 226. The return spring 223 is sleeved on the second end of the connecting pipe 222. The end of the rotating shaft gear 224 near the connecting pipe 222 is provided with a connecting protrusion 227, and the connecting groove 226 is used to insert into the protrusion 227 (matching the shape of the connecting groove, and the rotating shaft gear can be rotated by rotating the connecting pipe when inserted).

[0026] The second drive unit 230 includes a central rack 231, a display cap 232 (preferably red), and a (transparent) cover 233. The central rack 231 is installed in the rack channel 212 and meshes with the rotating shaft gear 224. The display cap 232 is fixedly installed on the top end of the central rack 231. The cover 233 covers the display cap 232 and is fixedly installed on the top end of the rack channel 212.

[0027] Specifically, the second end of the handle 221 is a hand-held part.

[0028] More specifically, the bottom end of the central rack 231 is connected to the valve plate 320 via a drive rod 310.

[0029] Furthermore, a gasket is provided between the cover 233 and the rack channel 212.

[0030] Furthermore, the top cover 210 is mounted on the body 110 of the shut-off valve.

[0031] Regarding this utility model:

[0032] When opening the shut-off valve, first open the safety flip cover to disengage the locking block from the lock hole, and apply a force to the rotating handle towards the rotating shaft gear so that the connecting groove is inserted into the protruding end. At this time, the return spring is compressed. Then, rotate the handle to drive the rotating shaft gear to rotate through the connecting tube, which in turn drives the central shaft rack to move upward. This causes the valve plate to lift through the drive rod. The shut-off valve is quickly opened through the mechanical structure and force transmission. When the central shaft rack moves upward, the display cap also moves upward, so the red color of the display cap can be seen through the transparent cover, allowing a direct indication that the shut-off valve is currently in the open state (if it is not opened, the display cap will not move upward and the red color cannot be seen, indicating that the shut-off valve is in the closed state). After opening, release the handle. Due to the compression force of the return spring, the handle returns to its initial position, and the connecting groove disengages from the protruding end, achieving a safe return.

[0033] It is worth mentioning that the technical features of the shut-off valve, drive rod and valve plate involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0034] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An opening device for an intelligent normally closed emergency shut-off valve, characterized in that, It includes a top cover, a first drive unit, and a second drive unit, both of which are mounted on the top cover, wherein: The top cover is provided with a gear channel and a rack channel, the gear channel and the rack channel are connected, and a safety flip cover is provided at one end of the gear channel; The first drive unit includes a handle, a connecting tube, a return spring, and a rotating gear. The first end of the handle is fixedly installed on the first end of the connecting tube, and the first end of the handle is provided with a locking block. The locking block is used to install in the lock hole of the safety flip cover. The second end of the connecting tube and the rotating gear are both built into the gear channel, and the second end of the connecting tube is provided with a connecting groove. The return spring is sleeved on the second end of the connecting tube. The end of the rotating gear near the connecting tube is provided with a connecting protrusion, and the connecting groove is used to insert into the protrusion. The second drive unit includes a central rack, a display cap, and a cover. The central rack is installed in the rack channel and meshes with the rotating shaft gear. The display cap is fixedly installed on the top of the central rack. The cover covers the display cap and is fixedly installed on the top of the rack channel.

2. The opening device for an intelligent normally closed emergency shut-off valve according to claim 1, characterized in that, The second end of the handle is the hand grip.

3. The opening device for an intelligent normally closed emergency shut-off valve according to claim 2, characterized in that, The bottom end of the central rack is connected to the valve plate via a drive rod.

4. The opening device for an intelligent normally closed emergency shut-off valve according to claim 3, characterized in that, A gasket is provided between the cover and the rack channel.

5. The opening device for an intelligent normally closed emergency shut-off valve according to claim 4, characterized in that, The top cover is installed on the body of the shut-off valve.

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