CN217328468U - Intelligent gas quick-closing valve - Google Patents

Abstract

The utility model relates to an intelligence gas fast valve of closing is great to the volume of solving current like product, and the production assembly is comparatively inconvenient, and stability is relatively poor, the great technical problem of consumption and design. A valve body of the quick-closing valve is internally provided with a valve seal assembly, the valve seal assembly is meshed with a gear column through a driving shaft, a shaft core and a gear of an internal gear assembly of a speed reduction assembly, and the driving shaft and the shaft core are driven by a motor and the speed reduction assembly to move upwards to seal an air inlet of the valve body; the main points are that one end of the driving shaft is connected with a valve seal assembly in the valve body, one end of a shaft core is inserted into the driving shaft, a spring is arranged on the outer diameter of the other end of the shaft core extending out of the driving shaft, the end of the shaft core is fixed on a motor box, the center of an output tooth in the speed reduction assembly is fixed on an inner speed reduction support, the spring is arranged in a speed reduction gear cavity buckled by a speed reduction gear cover and the inner speed reduction support, a cylinder of the output tooth is sleeved in a guide wheel groove of the driving shaft, and a tooth mouth on the other side of the edge of the output tooth is meshed with a gear of a gear assembly in the speed reduction assembly.

Description

Intelligent gas quick-closing valve

Technical Field

The utility model relates to an electric machine valve is an intelligence gas fast valve of closing.

Background

The motor valve, also called as an electric valve, can not only control the opening and closing of the valve, but also adjust the opening and closing amount of the valve. The electric valve is driven by a motor, and the opening or closing action of the electric valve needs a certain time analog quantity, can be adjusted, is relatively resistant to voltage shock, has the states of opening, closing, half opening and half closing, can control the flow rate of a medium in a pipeline, and has the opening and closing quantity of some electric valves. For example, the utility model discloses an application number 201710803869.3, granted notice date 2017.11.14, the name of "a built-in quick-closing motor valve of intelligent gas meter"; for example, the utility model discloses an application number 201922183760.1, grant notice day 2020.10.30 that chinese patent literature discloses, the utility model discloses "an intelligent gas table closes motor valve in twinkling of an eye". However, the existing motor valve technology has the problems of large volume, high power consumption and the like, the main reason is caused by a speed reduction installation mode, generally, the speed reduction is realized by the forward matching assembly with a screw rod, so that the axial height is greatly increased, and the space in the gas meter is very small, so that the problem that the gas meter cannot be installed is caused. Meanwhile, the valve port sealing element of the existing motor valve is wrapped on the sealing support, and when air pressure exists in the air inlet after the valve is closed, the valve port sealing element is easy to push away, so that the power consumption is high.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide an intelligent gas quick-closing valve to the field, which ensures that the volume of the prior like products is larger, the production and assembly are more inconvenient, the stability is poorer, and the power consumption is higher. The purpose is realized by the following technical scheme.

The utility model provides an intelligence gas closes valve soon, be equipped with the valve seal subassembly in this valve body of closing valve soon, the valve seal department sealed chamber top of valve seal subassembly is equipped with the gas outlet in the valve body, sealed chamber one side of valve body is equipped with the air inlet, the valve seal subassembly passes through the drive shaft, the axle core, and the gear post meshing of gear subassembly in the speed reduction subassembly, and drive the air inlet that the valve body was sealed in drive shaft and the axle core rebound by motor and speed reduction subassembly, the gear post is connected with the gear sleeve of motor, the motor sets up in the motor case, the leading-out terminal of motor case is equipped with the end cap of being qualified for the next round of competitions, the motor is connected with the controller through the end cap of being qualified for the next round of competitions. The structure design key points are that one end of the driving shaft is connected with a valve seal assembly in the valve body, one end of a shaft core is inserted into the driving shaft, the outer diameter of the other end of the shaft core extending out of the driving shaft is provided with a spring, the end of the shaft core is fixed on a motor box, the center of an output tooth in the speed reduction assembly is fixed on an inner speed reduction support, the spring is arranged in a speed reduction gear cavity buckled by a speed reduction gear cover and the inner speed reduction support, and the spring is abutted against a shaft orifice at the other end of the driving shaft; one side of the spring end of the driving shaft is provided with a guide wheel groove, one side of the edge of the output tooth is provided with a raised cylinder, the cylinder of the output tooth is sleeved in the guide wheel groove of the driving shaft, and a tooth opening on the other side of the edge of the output tooth is meshed with a gear of an internal gear assembly of the speed reducing assembly. Therefore, the speed reduction assembly of the quick-closing valve is reversely meshed with the driving shaft through the output teeth, and the speed reduction assembly and the valve body are installed in a reverse mode; a motor and a speed reducing assembly are arranged in the cavity of the speed reducing box, and the motor drives the speed reducing assembly to open and close the valve body; the output tooth drives the driving shaft to rotate the valve port support of the valve seal assembly to seal, and the spring props against the valve port support to prevent looseness; the quick-closing valve mainly solves the problem that the existing like products can increase the speed-reducing torsion to overcome air leakage.

The utility model discloses a speed reduction gear, including speed reduction gear intracavity, the output tooth is fixed in the speed reduction inner support through first locating pin, the one end of ratchet is equipped with the ratchet, the other end of ratchet is equipped with the tooth mouth that is greater than the ratchet diameter, the one end of pawl is the V font, V-arrangement end one side of pawl is equipped with the shell fragment of outside extension, the V-arrangement end opposite side of pawl is equipped with bellied tip, the other end of pawl is fixed in the swing of clutch support one end and is equipped with bellied locking piece, the tip of pawl offsets the locking with the ratchet of ratchet, the tooth mouth of ratchet and the gear of speed reduction assembly inner gear subassembly, the tooth mouth meshing of output tooth, the shell fragment of pawl offsets with the spacing post of the symmetrical opposite side speed reduction inner support of tip, the other end through-hole of clutch support sets up in the external diameter of gear post department.

The clutch assembly is positioned on one side of the top opening of the speed reduction gear cover, and a side cover buckle of the speed reduction gear cover is fastened and fixed with a limiting block on one side of the speed reduction inner support.

The bracket buckle at the other side of the speed reduction inner support is buckled and fixed with an outer diameter groove of a motor in the motor box, and the cover buckle of the motor cover is buckled and fixed with a box buckle at the outer diameter of the motor box. Therefore, the valve body adopts a full-buckle structure, and all parts are fastened in place through the bow-shaped buckle and the hook-shaped buckle.

The center of an output tooth in the speed reducing assembly is fixed on the speed reducing inner support through a first positioning pin, one end of a spring of the shaft core is fixed on the motor box through a second positioning pin, and the circle transmission device comprises the output tooth, the shaft core, a driving shaft and the second positioning pin.

The center of the output tooth in the speed reducing assembly is fixed on the speed reducing inner support through a first positioning pin, and one end of a spring of the shaft core is fixed on the motor box through a second positioning pin.

The internal gear component of the speed reducing assembly comprises an output tooth, a ratchet wheel, a pawl, a clutch frame, a speed reducing internal support, a gear column, a first gear shaft, a first duplicate gear, a second gear shaft, a second duplicate gear, a third gear shaft, a third duplicate gear and a speed reducing gear cover, wherein the first duplicate gear, the second duplicate gear and the third duplicate gear are fixed through the first gear shaft, the second gear shaft and the third gear shaft respectively, and the big gear and the small gear of the first duplicate gear, the second duplicate gear and the third duplicate gear are meshed with the tooth opening of the ratchet wheel and meshed with the gear column respectively after being meshed with each other.

The valve seal assembly comprises a valve port sealing element, a valve port support and a driving shaft, the valve port sealing element is installed on the valve port support in a back pressure mode, the valve port sealing element is wrapped on the outer diameter of the valve port support, the valve port support and the valve port sealing element are arranged in a sealing cavity between the valve body and the cover plate, and the valve port support is fixed at one end of the driving shaft.

A cover plate sealing gasket is arranged at the joint of the motor box and the cover plate at the extending part of the driving shaft of the motor box, and a buckling groove of the cover plate is buckled with a valve buckle of the valve body.

The switch assembly is fixedly arranged on one side of the motor cover with the outer diameter of the reduction gear cover, a switch plug of the switch assembly plugs a plug hole on one side of the switch main body, a control line of the switch assembly penetrates through the switch plug and penetrates out of a wire outlet hole of the motor cover, the switch main body is provided with a movable reed and a fixed reed, and the movable reed is abutted to the outer diameter of the driving shaft. The switch assembly is used for detecting the opening and closing positions of the quick-closing valve.

The utility model has reasonable structural design, convenient use, installation and production, large and stable torsion, small volume occupation and simple wiring; the intelligent gas quick-closing valve is suitable for being used as an intelligent gas quick-closing valve in a gas meter and improving the structure of similar products.

Drawings

Fig. 1 is a schematic diagram of an explosion structure of the present invention, in which a clutch assembly is enlarged.

Fig. 2 is a schematic cross-sectional view of the present invention, in which the clutch assembly is enlarged.

Fig. 3 is a schematic top view of the structure of fig. 2.

Fig. 4 is a schematic view of the structure of the internal deceleration support in the motor box of the present invention.

Fig. 5 is a schematic top view of the position of the speed reduction assembly according to the present invention.

Fig. 6 is a schematic perspective view of fig. 5.

Fig. 7 is a schematic view of the improved explosive structure of fig. 1.

Fig. 8 is a schematic diagram of a further exploded view of the switch assembly of fig. 7.

Figure number and name: 1. the valve comprises a valve body, 101, mounting lugs, 2, a valve port sealing element, 3, a valve port bracket, 4, a cover plate, 5, a cover plate sealing gasket, 6, a driving shaft, 601, a guide wheel groove, 7, a shaft core, 8, an output tooth, 9, a first positioning pin, 10, a ratchet wheel, 11, a pawl, 12, a clutch frame, 13, a deceleration inner bracket, 1301, a frame buckle, 1302, a limiting block, 14, a motor, 15, a motor box, 1501, a box buckle, 16, a wire outlet plug, 17, a gear column, 18, a first gear shaft, 19, a first duplicate gear, 20, a second gear shaft, 21, a second duplicate gear, 22, a third gear shaft, 23, a third duplicate gear, 24, a spring, 25, a second positioning pin, 26, a deceleration gear cover, 27, a motor cover, 2701, a cover, 28, an air outlet, 29, an air inlet, 30, a switch main body, 31, a switch plug, 32 and a plug hole.

Detailed Description

The structure and use of the present invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-6, a valve seal assembly is arranged in a valve body 1 of the quick-closing valve, an air outlet 28 is arranged at the top of a sealing cavity at the valve sealing part of the valve seal assembly in the valve body, an air inlet 29 is arranged at one side of the sealing cavity of the valve body, the valve seal assembly is meshed with a gear column 17 through a driving shaft 6, a shaft core 7 and a gear of an inner gear assembly of a speed reduction assembly, the driving shaft and the shaft core are driven by a motor and the speed reduction assembly to move upwards to seal the air inlet of the valve body, the gear column is connected with a gear sleeve of a motor 14, the motor is arranged in a motor box 15, an outlet end of the motor box is provided with an outlet plug 16, and the motor is connected with a controller through the outlet plug. The concrete structure is as follows: one end of the driving shaft is connected with a valve seal assembly in the valve body, one end of the shaft core is inserted into the driving shaft, the outer diameter of the other end of the shaft core extending out of the driving shaft is provided with a spring 24, the end of the shaft core is fixed on the motor box 15 through a second positioning pin 25, the center of an output tooth 8 in the speed reduction assembly is fixed on a speed reduction inner support 13 through a first positioning pin 9, the spring is arranged in a speed reduction gear cavity formed by buckling a speed reduction gear cover 26 and the speed reduction inner support, and the spring is abutted against a shaft hole opening at the other end of the driving shaft; a guide wheel groove 601 is formed in one side of the spring end of the driving shaft, a raised cylinder is arranged on one side of the edge of the output tooth, the cylinder of the output tooth is sleeved in the guide wheel groove of the driving shaft, a tooth opening in the other side of the edge of the output tooth is meshed with a gear of a gear assembly in the speed reducing assembly, the output tooth is a half tooth, and the circle transmission device comprises an output tooth, a shaft core, a driving shaft and a second positioning pin; the valve seal assembly comprises a valve port sealing element 2, a valve port support 3 and a driving shaft, the valve port sealing element is installed on the valve port support in a back pressure mode, the valve port sealing element is wrapped on the outer diameter of the valve port support, the valve port support and the valve port sealing element are arranged in a sealing cavity between the valve body and the cover plate 4, and the valve port support is fixed at one end of the driving shaft.

The clutch assembly is arranged in the cavity of the speed reduction gear and comprises a ratchet 10, a pawl 11 and a clutch frame 12, output teeth are fixed on the speed reduction inner support through a first positioning pin, one end of the ratchet is provided with a ratchet, the other end of the ratchet is provided with a tooth opening larger than the diameter of the ratchet, one end of the pawl is in a V shape, one side of the V-shaped end of the pawl is provided with an elastic sheet extending outwards, the other side of the V-shaped end of the pawl is provided with a convex tip, the other end of the pawl is fixed at one end of the clutch frame to swing and is provided with a convex locking block, the tip of the pawl is abutted to the ratchet of the ratchet, the tooth opening of the ratchet is engaged with a gear of the gear assembly in the speed reduction assembly and the tooth opening of the output teeth, the elastic sheet of the pawl is abutted to a limiting column of the speed reduction inner support on the other side of the tip symmetry, and a through hole of the other end of the clutch frame is arranged on the outer diameter of the gear column. The clutch assembly is located on the top opening side of the reduction gear cover 26, and a side cover buckle of the reduction gear cover is fixedly buckled with a limiting block 1302 on one side of the inner reduction support. The bracket buckle 1301 on the other side of the inner speed reducing bracket is buckled and fixed with an outer diameter groove of a motor in the motor box, and the cover buckle 2701 of the motor cover is buckled and fixed with the box buckle 1501 of the outer diameter of the motor box.

The internal gear component of the speed reducing assembly comprises an output tooth, a ratchet wheel, a pawl, a clutch frame, a speed reducing internal support, a gear column, a first gear shaft 18, a first duplicate gear 19, a second gear shaft 20, a second duplicate gear 21, a third gear shaft 22, a third duplicate gear 23 and a speed reducing gear cover, wherein the first duplicate gear, the second duplicate gear and the third duplicate gear are fixed through the first gear shaft, the second gear shaft and the third gear shaft respectively, and big gears and small gears of the first duplicate gear, the second duplicate gear and the third duplicate gear are meshed with a tooth mouth of the ratchet wheel and the gear column respectively after being meshed with each other. The joint of the motor box and the cover plate at the extending part of the driving shaft of the motor box is provided with a cover plate sealing gasket 5, and the fastening groove of the cover plate is fastened with the valve fastener of the valve body.

The quick-closing valve consists of a valve body, a valve port sealing assembly, a cover plate assembly, a circle transmission device, a motor cover, a speed reduction assembly, a clutch assembly, a motor and a speed reduction box. This fast valve closes 180 degrees rethread output teeth and drive shaft cooperations of speed reduction assembly, will save a lot of spaces at axial height like this, and simultaneously for the convenience of assembly, the valve body is inlayed to the valve sealing member, and this structure is just opposite with the structure of current like product. Therefore, when the valve is closed, the pressure of the air inlet is large, the sealing performance is better, the valve port sealing element is pressed against the valve port support, when pressure exists, the air pressure can force the valve port sealing element to deform and then closely fit with the valve port support, the problem of leakage is not easy to occur, the speed-reducing torsion can be reduced, and the power consumption is saved.

The working principle of the quick-closing valve is as follows: when the output tooth rotates clockwise, the upper cylinder of the output tooth drives the lower guide wheel groove of the driving shaft core to move upwards, and the valve is opened by overcoming the moment of the spring; after the ratchet is opened in place, because the output teeth are half teeth, the gear above the ratchet wheel is meshed with the last tooth opening on the output teeth to realize the slipping function, and the gear is prevented from being damaged. When the valve is opened, the speed reduction assembly drives the clutch assembly, and the clutch assembly drives the circle transmission device to rotate the valve port support to move upwards, so that the valve opening function is realized. When the valve is closed, the speed reduction assembly drives the clutch assembly, and the clutch assembly drives the circle transmission device to rotate the valve port support to move downwards, so that the valve closing function is realized.

According to the above structural features, as shown in fig. 7 and 8, a switch assembly may also be fixedly disposed on one side of the motor cover of the external diameter of the reduction gear cover, a switch plug 31 of the switch assembly plugs a plug hole 32 on one side of the switch main body 30, a control line of the switch assembly passes through the switch plug and passes through a wire outlet hole of the motor cover, the switch main body is provided with a movable spring and a fixed spring, and the movable spring is in contact with the external diameter of the driving shaft in an abutting manner, so that the switch assembly detects the open position and the close position of the quick-closing valve.

The bright spots of the quick-closing valve are as follows: 1. the reduction gearbox is internally provided with a clutch component: a. the clutch assembly is positioned below the third gear; b. the pawl, the ratchet wheel and the clutch frame form a clutch assembly; c. the pawl is tightly matched with the ratchet wheel through a plastic deformation elastic sheet, and the existing products in the prior art generally adopt a torsion spring to realize the function; d. when the third gear rotates clockwise, the pawl and the ratchet wheel slide mutually, and the gear above the ratchet wheel is tightly abutted against the output teeth for meshing transmission; e. when the third gear rotates anticlockwise, the clutch assembly leaves the output teeth, and the ratchet wheel starts to idle after the locking block of the pawl touches the limiting block, so that the gear is prevented from being damaged; f. after the clutch component drives the ratchet wheel to be disengaged from the output teeth, the spring on the driving shaft pushes the driving shaft and the valve port sealing component to quickly close the valve. 2. The valve seal assembly consists of a valve port seal element, a valve port bracket and a driving shaft. 3. The circle transmission device consists of an output tooth, a shaft core, a driving shaft and a second positioning pin.

Claims (9)

1. An intelligent gas quick-closing valve is characterized in that a valve seal assembly is arranged in a valve body (1) of the quick-closing valve, a gas outlet (28) is formed in the top of a sealing cavity at the position of a valve sealing piece of the valve seal assembly in the valve body, a gas inlet (29) is formed in one side of the sealing cavity of the valve body, the valve seal assembly is meshed with a gear column (17) through a driving shaft (6) and a shaft core (7) and a gear of an inner gear assembly of a speed reduction assembly, the driving shaft and the shaft core are driven by a motor and the speed reduction assembly to move upwards to seal the gas inlet of the valve body, the gear column is connected with a gear sleeve of a motor (14), the motor is arranged in a motor box (15), a wire outlet end of the motor box is provided with a wire outlet plug (16), and the motor is connected with a controller through the wire outlet plug; the automatic valve closing device is characterized in that one end of a driving shaft (6) is connected with a valve sealing assembly in a valve body (1), one end of a shaft core (7) is inserted into the driving shaft, a spring (24) is arranged on the outer diameter of the other end of the shaft core extending out of the driving shaft, the end of the shaft core is fixed on a motor box (15), the center of an output tooth (8) in a speed reducing assembly is fixed on an inner speed reducing support (13), the spring is arranged in a speed reducing gear cavity formed by buckling a speed reducing gear cover (26) and the inner speed reducing support, and the spring is abutted against a shaft hole opening at the other end of the driving shaft; one side of the spring end of the driving shaft is provided with a guide wheel groove (601), one side of the edge of the output tooth is provided with a raised cylinder, the cylinder of the output tooth is sleeved in the guide wheel groove of the driving shaft, a tooth opening on the other side of the edge of the output tooth is meshed with a gear of an internal gear assembly of the speed reducing assembly, and the output tooth is a half tooth.

2. The intelligent gas quick-closing valve according to claim 1, wherein a clutch assembly is arranged in the speed reduction gear cavity, the clutch assembly comprises a ratchet wheel (10), a pawl (11) and a clutch frame (12), the output teeth (8) are fixed on the speed reduction inner frame (13) through a first positioning pin (9), one end of the ratchet wheel is provided with a ratchet, the other end of the ratchet wheel is provided with a tooth opening larger than the diameter of the ratchet wheel, one end of the pawl is V-shaped, one side of the V-shaped end of the pawl is provided with an outward extending elastic sheet, the other side of the V-shaped end of the pawl is provided with a raised tip, the other end of the pawl is fixed at one end of the clutch frame, swings and is provided with a raised locking block, the tip of the pawl is locked with the ratchet of the ratchet wheel in a propping manner, the tooth opening of the ratchet wheel is meshed with the tooth openings of the gear assembly and the output teeth (8) in the speed reduction assembly, the elastic sheet of the pawl props against a limiting column of the speed reduction inner frame at the other side where the tip is symmetrical, the other end through hole of the clutch frame is arranged on the outer diameter of the gear column (17).

3. The intelligent gas quick-closing valve according to claim 2, wherein the clutch assembly is positioned at one side of the top opening of the reduction gear cover (26), and a cover buckle at one side of the reduction gear cover is buckled and fixed with a limiting block (1302) at one side of the reduction inner support (13).

4. The intelligent gas quick-closing valve according to claim 3, characterized in that a bracket buckle (1301) at the other side of the speed reduction inner bracket (13) is buckled and fixed with an outer diameter groove of a motor (14) in a motor box (15), and a cover buckle (2701) of a motor cover (27) is buckled and fixed with a box buckle (1501) at the outer diameter of the motor box (15).

5. The intelligent gas quick-closing valve according to claim 1, characterized in that the center of the output tooth (8) in the speed reduction assembly is fixed to the speed reduction inner support (13) through a first positioning pin (9), and one end of the spring (24) of the shaft core (7) is fixed to the motor box (15) through a second positioning pin (25).

6. The intelligent gas quick-closing valve according to claim 1, wherein the gear assembly in the reduction assembly comprises an output tooth (8), a ratchet wheel (10), a pawl (11), a clutch frame (12), a reduction inner frame (13), a gear column (17), a first gear shaft (18), a first duplicate gear (19), a second gear shaft (20), a second duplicate gear (21), a third gear shaft (22), a third duplicate gear (23) and a reduction gear cover (26), wherein the first duplicate gear, the second duplicate gear and the third duplicate gear are respectively fixed through the first gear shaft, the second gear shaft and the third gear shaft, and the large gear, the small gear and the small gear of the first duplicate gear, the second duplicate gear and the third duplicate gear are respectively meshed with each other and then meshed with a tooth port of the ratchet wheel (10) and the gear column (17).

7. The intelligent gas quick-closing valve according to claim 1, wherein the valve seal assembly comprises a valve port seal (2), a valve port support (3) and a driving shaft (6), the valve port seal is installed on the valve port support in a back pressure mode, the valve port seal is wrapped on the outer diameter of the valve port support, the valve port support and the valve port seal are arranged in a sealing cavity between the valve body (1) and the cover plate (4), and the valve port support is fixed at one end of the driving shaft (6).

8. The intelligent gas quick-closing valve according to claim 1, characterized in that a cover plate sealing gasket (5) is arranged at the joint of the motor box (6) extending out of the driving shaft (15) and the cover plate (4), and a fastening groove of the cover plate is fastened with a valve fastener of the valve body.

9. The intelligent gas quick-closing valve according to claim 1, characterized in that a switch assembly is fixedly arranged on one side of a motor cover (27) of the outer diameter of the reduction gear cover (26), a switch plug (31) of the switch assembly plugs a plug hole (32) on one side of a switch main body (30), a control line of the switch assembly passes through the switch plug and penetrates out of an outlet hole of the motor cover, the switch main body is provided with a movable spring piece and a fixed spring piece, and the movable spring piece is abutted against the outer diameter of a driving shaft.

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