Leak-proof electric two-way stop valve

Abstract

The utility model provides a leakproof electric two-way stop valve, which relates to the stop valve field, and comprises an actuating mechanism and a stop valve body, the actuating mechanism is connected with the upper end of the stop valve body, the actuating mechanism comprises a driving box, the upper end of the driving box is provided with a guide cylinder, the driving box is internally provided with a toothed plate, and the toothed plate is connected with the guide cylinder. A first gear is meshed with one side of the toothed plate, a second gear is meshed with the other side of the toothed plate, a motor is connected to the outer side of the first gear, a manual assembly is connected to the outer side of the second gear, a protection plate is connected to the lower end of the driving box, a holder is connected to the lower end of the protection plate, and a driving rod is slidably connected to the interior of the protection plate. The lower end of the driving rod is connected with a sliding plate, and the lower end of the sliding plate is connected with a valve rod. According to the utility model, an electric operation mode and a manual operation mode are adopted, a safe standby effect is realized, and meanwhile, a certain lubricating effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely relates to a kind of anti-leakage electric two-way stop valve. BACKGROUND

[0002] Electric stop valve and flange gate valve are same type valve, composed of electric actuator or pneumatic actuator and stop valve two parts, difference is its closing piece is a valve body, valve body rotates around valve body center line to achieve opening, closing a kind of valve.Gate valve is mainly used to cut off, distribute and change the flow direction of medium in pipeline.Two-piece ball valve, three-piece ball valve, it is a new type valve widely used in recent years.

[0003] After searching, prior art (publication number: CN222255068U), the electric stop valve is described in the document. The electric stop valve includes a valve body, a valve core, a resilient member, and a driving member. The valve body has a fluid passage, and the fluid passage has a sealing portion formed therein. The valve core and the valve body are movably coupled. The valve core includes a valve stem portion, a valve head portion, and a limiting portion. One end of the valve stem portion is connected to the valve head portion, and the other end is connected to the limiting portion. The resilient member is disposed outside the fluid passage and around the outer periphery of the valve stem portion. One end of the resilient member abuts against the limiting portion, and the other end abuts against the valve body. The driving member is connected to the valve body, and the output end of the driving member is stopped at the limiting portion. When the driving member is powered on, the driving member can push the valve head portion away from the sealing portion and open the fluid passage, and compress the resilient member. When the driving member is powered off, the resilient member can push the valve head portion against the sealing portion and seal with the sealing portion. The electric stop valve provided by the present application solves the problem of complex structure of the existing normally closed stop valve, which results in high cost.

[0004] Although the electric stop valve in the prior art has the characteristics of simple structure and low cost, there are still some deficiencies. The existing electric stop valve generally has only one electric actuator, which cannot be used normally when power is off. Therefore, there is no emergency protection in use, which poses a safety hazard. In addition, the screw rod or driving rod of the actuator and the valve stem are partially exposed to the external environment, which may rust over time, causing the movement to be stuck. UTILITY MODEL CONTENTS

[0005] To overcome the defects of the prior art, an anti-leakage electric two-way stop valve is provided to solve the problems raised in the background art.

[0006] In order to achieve the above object, a leakage-proof electric two-way stop valve is provided, comprising an actuator and a stop valve body, the actuator being connected to the upper end of the stop valve body, the actuator comprising a drive box, a guide cylinder being arranged at the upper end of the drive box, a toothed plate being arranged inside the drive box, a first gear being engaged with one side of the toothed plate, a second gear being engaged with the other side of the toothed plate, an electric motor being connected to the outer side of the first gear, a manual assembly being connected to the outer side of the second gear, a protective plate being connected to the lower end of the drive box, a retainer being connected to the lower end of the protective plate, a drive rod being slidably connected inside the protective plate, a sliding plate being connected to the lower end of the drive rod, and a valve rod being connected to the lower end of the sliding plate.

[0007] Further, the electric motor is arranged on the outer wall of the drive box, an electromagnetic clutch being connected to the output shaft end of the electric motor, a half shaft being connected to one end of the electromagnetic clutch, and the half shaft being connected to the center of the first gear.

[0008] Further, a spring is arranged inside the guide cylinder, a sliding block being connected to the lower end of the spring, and a guide rod being connected to the lower end of the sliding block, the guide rod being connected to the upper end of the toothed plate.

[0009] Further, the manual assembly comprises a handle, a lead screw being connected to the inner side of the handle, a locking nut being screwed to the outer side of the lead screw, a rotating shaft being connected to the inner side end of the lead screw, the rotating shaft being connected to the center of the second gear, and a bearing being connected to the outer side of the rotating shaft.

[0010] Further, a lubricating cavity is arranged inside the protective plate, a lubricating channel being connected to the outer side of the lubricating cavity, and the drive rod sliding through the lubricating cavity.

[0011] Further, an oil storage tank is arranged on the outer side of the protective plate, a piston plate being arranged inside the oil storage tank, an extrusion rod being rotatably connected to the lower end of the piston plate, and a through hole being arranged at the connection between the lubricating channel and the extrusion rod.

[0012] Further, a guide groove is arranged inside the retainer, the valve rod being connected to the lower end of the sliding plate, and the valve rod being inserted into the inside of the stop valve body and connected to a valve disc.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1, the motor, electromagnetic clutch and half shaft and first gear, so that by the tooth plate up and down movement drive rod movement, in turn drive the slide and valve rod movement, so that the valve rod drive valve flap movement, realize the opening and closing operation of electric stop valve, when power failure occurs, electromagnetic clutch is disconnected at this time, half shaft is in the active connection state, at this time, the handle included in the handle of the manual assembly, so that the rotating handle drives the rotating shaft to rotate, in turn drive the second gear rotation, in turn through the tooth plate drive rod and valve rod movement, realize the effect of manual operation, when the drive shaft is rotated to the position, through the locking bolt and screw rod is fixed;

[0015] 2, the use of the oil tank outside the protection plate, so that by rotating the extrusion rod to lift the piston plate, in turn realize the piston plate to the lubricating oil from the hole into the lubrication channel, in turn into the lubricating cavity, at this time, the drive rod outside lubrication, at the same time, part of the lubricating oil is driven by the sliding connection gap between the drive rod and the protection plate to flow down to the surface of the slide and part of the valve rod, realize the lubrication of the slide and valve rod, through the lubricating oil on the surface of the above components form an oil film, can play a certain anti-corrosion effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the front view structure schematic diagram of the embodiment of the utility model.

[0017] Figure 2 is the front view structure schematic diagram of the embodiment of the utility model.

[0018] Figure 3 is the tooth plate side view structure schematic diagram of the embodiment of the utility model.

[0019] Figure 4 is the Figure 2 structure schematic diagram of the embodiment of the utility model.

[0020] Figure: 1, the actuator;11, drive box;12, motor;13, electromagnetic clutch;131, half shaft;132, first gear;14, guide cylinder;141, spring;142, sliding block;143, guide rod;15, tooth plate;16, manual assembly;161, handle;162, locking nut;163, rotating shaft;164, bearing;165, second gear;17, protection plate;171, lubricating cavity;172, lubrication channel;173, hole;174, oil tank;175, piston plate;176, extrusion rod;18, retainer;19, drive rod;110, slide;111, valve rod;2, stop valve body. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 4The utility model provides a kind of anti-leakage electric two-way stop valve, comprising: actuator 1 and stop valve body 2, actuator 1 is connected in the upper end of stop valve body 2, actuator 1 includes drive box 11, and drive box 11 upper end is equipped with guide cylinder 14, and drive box 11 inside is equipped with toothed plate 15, one side of toothed plate 15 is engaged with first gear 132, and the other side of toothed plate 15 is engaged with second gear 165, and the outside of first gear 132 is connected with motor 12, the outside of second gear 165 is connected with manual assembly 16, the lower end of drive box 11 is connected with guard plate 17, and the lower end of guard plate 17 is connected with retainer 18, and the inside of guard plate 17 is slidably connected with driving rod 19, the lower end of driving rod 19 is connected with sliding plate 110, and the lower end of sliding plate 110 is connected with valve stem 111, the inside of retainer 18 is equipped with guide groove, and the lower end of sliding plate 110 is connected with valve stem 111, and valve stem 111 is inserted into the inside of stop valve body 2 and is connected with valve clack.

[0022] In the embodiment, actuator 1 and stop valve body 2 constitute the main body structure of the anti-leakage electric two-way stop valve involved in the application.

[0023] Specifically, toothed plate 15 is provided with double-sided tooth structure.

[0024] It should be noted that when motor 12 is working, manual assembly 16 is in an active state, that is, when toothed plate 15 moves up and down, manual assembly 16 will also be activated.

[0025] Specifically, driving rod 19 slides through the lower end of drive box 11, the lower end of drive box 11, guard plate 17 and retainer 18, and a gap is provided at the connection between driving rod 19 and guard plate 17 and retainer 18, and a seepage hole is provided at the connection between driving rod 19 and sliding plate 110, and the seepage hole penetrates sliding plate 110.

[0026] As shown in Figure 2 and Figure 3 , motor 12 is installed on the outer wall of drive box 11, the output shaft end of motor 12 is connected with electromagnetic clutch 13, one end of electromagnetic clutch 13 is connected with half shaft 131, the center of half shaft 131 is connected with first gear 132, spring 141 is arranged in guide cylinder 14, the lower end of spring 141 is connected with sliding block 142, the lower end of sliding block 142 is connected with guide rod 143, and guide rod 143 is connected to the upper end of toothed plate 15.

[0027] Specifically, half shaft 131 is connected with one side magnetic ring of electromagnetic clutch 13, the other side magnetic ring of electromagnetic clutch 13 is connected with the output shaft end of motor 12, and the two magnetic rings are attracted to realize transmission when electromagnetic clutch 13 is powered on, and half shaft 131 and the magnetic ring on the same side can rotate freely when power off.

[0028] As a preferable implementation, the guiding cylinder 14, the spring 141, the sliding block 142 and the guiding rod 143 are arranged to facilitate the up and down movement of the toothed plate 15 and to stabilize the guiding effect, and the up and down displacement end of the sliding block 142 in the guiding cylinder 14 is arranged as the stroke of the valve clack switch.

[0029] As shown in Figure 2 , Figure 3 and Figure 4 , the manual assembly 16 comprises a handle 161, the inside of the handle 161 is connected with a screw rod, the outside of the screw rod is screwed with a locking nut 162, the inside end of the screw rod is connected with a rotating shaft 163, the rotating shaft 163 is connected to the center of a second gear 165, the outside of the rotating shaft 163 is connected with a bearing 164, the inside of the protection plate 17 is provided with a lubricating cavity 171, the outside of the lubricating cavity 171 is connected with a lubricating channel 172, the driving rod 19 slides through the lubricating cavity 171, the outside of the protection plate 17 is installed with an oil storage tank 174, the inside of the oil storage tank 174 is provided with a piston plate 175, the lower end of the piston plate 175 is rotatably connected with a pressing rod 176, and a through hole 173 is arranged at the connection position of the lubricating channel 172.

[0030] Specifically, the bearing 164 is installed on the inner wall of the driving box 11, the rotating shaft 163 rotates through the wall of the driving box 11, and the connection position of the screw rod and the rotating shaft 163 is located on the outer wall of the driving box 11, so that the rotating shaft 163 can be locked by the locking nut 162 and the screw rod.

[0031] Specifically, the lubricating cavity 171 is arranged as a circular cavity structure, and the driving rod 19 penetrates the center of the lubricating cavity 171. When the inside of the lubricating cavity 171 is full of lubricating oil, the lubricating oil can slowly seep down, so that the oil can be added only by the pressing rod 176 at regular intervals.

[0032] In use, the motor, the electromagnetic clutch, the half shaft, the first gear and the toothed plate drive the driving rod to move up and down, and then drive the sliding plate and the valve rod to move, so that the valve rod drives the valve flap to move, thereby realizing the opening and closing operation of the electric stop valve.

[0033] The anti-leakage electric two-way stop valve can effectively solve the problems in the background art, and has the electric and manual operation modes on the basis of the existing anti-leakage electric two-way stop valve technology, realizes the safety standby effect, and has a certain lubricating effect.

Claims

1. A leak-proof electric two-way stop valve, comprising: The utility model provides an improved stop valve, which comprises an actuator (1) and a stop valve body (2), wherein the actuator (1) is connected to the upper end of the stop valve body (2), the actuator (1) comprises a driving box (11), the upper end of the driving box (11) is provided with a guide cylinder (14), the inside of the driving box (11) is provided with a toothed plate (15), one side of the toothed plate (15) is engaged with a first gear (132), the other side of the toothed plate (15) is engaged with a second gear (165), the outer side of the first gear (132) is connected with a motor (12), the outer side of the second gear (165) is connected with a manual assembly (16), the lower end of the driving box (11) is connected with a protective plate (17), the lower end of the protective plate (17) is connected with a retainer (18), the inside of the protective plate (17) is slidingly connected with a driving rod (19), the lower end of the driving rod (19) is connected with a sliding plate (110), and the lower end of the sliding plate (110) is connected with a valve rod (111).

2. A leak-proof electric two-way stop valve according to claim 1, wherein The motor (12) is mounted on the outer wall of the driving box (11), the output shaft end of the motor (12) is connected with an electromagnetic clutch (13), one end of the electromagnetic clutch (13) is connected with a half shaft (131), and the half shaft (131) is connected to the center of the first gear (132).

3. A leak-proof electric two-way stop valve according to claim 1, wherein The inside of the guide cylinder (14) is provided with a spring (141), the lower end of the spring (141) is connected with a sliding block (142), the lower end of the sliding block (142) is connected with a guide rod (143), and the guide rod (143) is connected to the upper end of the toothed plate (15).

4. A leak-proof electric two-way stop valve according to claim 1, wherein The manual assembly (16) comprises a handle (161), the inner side of the handle (161) is connected with a lead screw, the outer side of the lead screw is screwed with a locking nut (162), the inner side end of the lead screw is connected with a rotating shaft (163), the rotating shaft (163) is connected to the center of the second gear (165), and the outer side of the rotating shaft (163) is connected with a bearing (164).

5. A leak-proof electric two-way stop valve according to claim 1, wherein The inside of the protective plate (17) is provided with a lubricating cavity (171), the outer side of the lubricating cavity (171) is connected with a lubricating channel (172), and the driving rod (19) slidingly passes through the lubricating cavity (171).

6. A leak-proof electric two-way stop valve according to claim 1, wherein The outer side of the protective plate (17) is mounted with an oil storage tank (174), the inside of the oil storage tank (174) is provided with a piston plate (175), the lower end of the piston plate (175) is rotatably connected with a pressing rod (176), and a through hole (173) is formed at the connection position of the lubricating channel (172).

7. A leak-proof electric two-way stop valve according to claim 1, wherein The inside of the retainer (18) is provided with a guide groove, the lower end of the sliding plate (110) is connected with the valve rod (111), and the valve rod (111) is inserted into the inside of the stop valve body (2) and connected with a valve clack.

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