CN211820797U

CN211820797U - Electric gate valve

Info

Publication number: CN211820797U
Application number: CN201922152624.6U
Authority: CN
Inventors: 吴福全
Original assignee: Guangzhou Jiafusi Valve Making Co ltd
Current assignee: Guangzhou Jiafusi Valve Making Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-10-30
Anticipated expiration: 2029-12-04

Abstract

The utility model relates to an electric gate valve, which comprises a valve body, the valve gap, the valve rod, the valve plate, valve plate and valve body sliding fit, still include the driver, the upper end of valve gap is fixed with the top cap, the upper end of top cap is fixed with the support, the driver is installed on the support, the driver includes the casing, driving motor, gear drive subassembly, worm gear subassembly and switch module, the casing is fixed on the support, one side of driving motor fixed mounting in the casing, the worm gear subassembly includes worm and worm wheel, the opposite side in the casing is installed to the worm, driving motor passes through gear drive subassembly transmission with the worm and is connected, worm and worm wheel meshing, the upper portion at the valve rod is fixed to the worm wheel, switch module installs the. The utility model has the advantages that: set up switch module in the driver, can control the degree of opening of valve, when the flashboard removed when targetting in place, switch module control driving motor stopped power output to avoid the flashboard to cross the removal, be favorable to prolonging the life of valve.

Description

Electric gate valve

Technical Field

The utility model relates to the technical field of valves, especially an electric gate valve.

Background

The electric gate valve simply means that an electric actuator is used for controlling a valve, so that the valve is opened and closed. The electric actuator can be divided into an upper part and a lower part, wherein the upper part is the electric actuator, and the lower part is the valve. The action torque is larger than that of the electric valve, the opening and closing action speed of the electric gate valve can be adjusted, the structure is simple, the maintenance is easy, and the damage caused by the clamping is not easy to occur due to the buffer characteristic of gas in the action process. Most of existing electric gate valves directly drive a valve rod to rotate through an electric actuator, and then lift of a gate plate is controlled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an electric gate valve.

The purpose of the utility model is realized through the following technical scheme:

an electric gate valve comprises a valve body, a valve cover arranged at the top of the valve body, a valve rod penetrating through the valve cover and extending into the valve body, and a valve plate arranged at the lower end of the valve rod in a matching manner, wherein the valve plate is in sliding fit with the valve body, when the valve rod is rotated, the valve plate slides up and down in the valve body to realize the opening and closing of the valve, the electric gate valve further comprises a driver, a top cover is fixed at the upper end of the valve cover, a support is fixed at the upper end of the top cover, the driver is arranged on the support, the driver comprises a shell, a driving motor, a gear transmission assembly, a worm and gear assembly and a switch assembly, the shell is fixed on the support, the driving motor is fixedly arranged at one side in the shell, the worm and gear assembly comprises a worm and a worm wheel, the worm is, the worm wheel is fixed on the upper part of the valve rod, and the switch assembly is arranged on the upper part in the shell.

Further, gear drive assembly includes first pinion, first gear wheel, second pinion, second gear wheel, third pinion, third gear wheel, fourth pinion and fourth gear wheel, driving motor's output is installed to first pinion, first gear wheel and first pinion meshing, the coaxial fixed connection of first gear wheel and second pinion, second gear wheel and second pinion meshing, third gear wheel and third pinion meshing, the coaxial fixed connection of second gear wheel and third pinion, the coaxial fixed connection of third gear wheel and fourth pinion, fourth gear wheel and fourth pinion meshing, the coaxial fixed connection of fourth gear wheel and worm.

Further, the switch assembly comprises an electric installation plate, a power supply, contact switches and shift rods, the electric installation plate is fixed in the shell and can rotate relative to the valve rod, the power supply is fixed on the electric installation plate, the two contact switches are symmetrically and fixedly installed on the electric installation plate relative to the valve rod, the two shift rods are fixedly installed on the valve rod and are just opposite to the contact switches on the corresponding sides respectively, the power supply is connected with the driving motor, and the contact switches are connected with the power supply.

Further, the switch assembly also comprises an indicating disc and a pointer, the indicating disc is fixed at the top end of the valve rod, and the pointer is fixed on the electric installation plate.

Furthermore, a stop block is further fixed on the valve rod and located at the lower portion in the shell, two stop posts are further mounted at the lower portion of the shell, and when the valve rod rotates, the stop posts can abut against the side wall of one of the stop blocks.

Furthermore, a clamping groove is formed in the center of the top end face of the valve cover, a split clamping ring is installed in the clamping groove, and the split clamping ring is clamped on the valve rod.

Further, still open the seal groove on the valve rod, install O type circle in the seal groove, be interference fit between the inner wall of the outer wall of O type circle and top cap.

Furthermore, a sealing ring is arranged at the center of the top end of the top cover, and the sealing ring is sleeved on the valve rod.

Further, the lower extreme of valve rod is the lead screw section, the valve plate includes the valve clack and fixes the T type nut at the valve clack top, the lead screw section and the T type nut of valve rod lower extreme pass through screw-thread fit and are connected.

The utility model has the advantages of it is following:

1. the utility model discloses a set up switch module in the driver, can control the degree of opening of valve, when the flashboard removed and targets in place, switch module control driving motor stopped power output to avoid the flashboard to cross the removal, be favorable to prolonging the life of valve.

2. The utility model discloses a gear drive subassembly adopts the cooperation of multiunit big or small gear to carry out the overall arrangement to driving motor and worm, make the utility model discloses a driver is compacter, and the space utilization is more reasonable.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic longitudinal sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural view of the present invention with the housing removed;

fig. 5 is a schematic view of the arrangement structure of the gear transmission assembly of the present invention;

FIG. 6 is a schematic view of the assembly structure between the valve rod and the valve plate of the present invention;

fig. 7 is a schematic structural diagram of the switch assembly of the present invention;

fig. 8 is a schematic perspective view of the second embodiment of the present invention;

in the figure: 1-valve body, 2-valve cover, 3-valve rod, 3 a-sealing groove, 3 b-lead screw section, 4-valve plate, 4 a-valve flap, 4b-T type nut, 5-top cover, 6-bracket, 7-driver, 7 a-shell, 7 b-driving motor, 7 c-gear transmission component, 7c 1-first small gear, 7c 2-first big gear, 7c 3-second small gear, 7c 4-second big gear, 7c 5-third small gear, 7c 6-third big gear, 7c 7-fourth small gear, 7c 8-fourth big gear, 7 d-worm, 7 e-worm gear, 7 f-switch component, 7f 1-electric board, 7f 2-power supply, 7f 3-contact switch, 7f 4-a shifting lever, 7f 5-an indicating disc, 7f 6-a pointer, 7 g-a stop block, 7 h-a blocking column, 8-a split snap ring, 9-an O-shaped ring and 10-a sealing ring.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 8, an electric gate valve comprises a valve body 1, a valve cover 2 installed on the top of the valve body 1, a valve rod 3 penetrating through the valve cover 2 and extending into the valve body 1, and a valve plate 4 installed at the lower end of the valve rod 3 in a matching manner, wherein the valve plate 4 is in sliding fit with the valve body 1, when the valve rod 3 is rotated, the valve plate 4 slides up and down in the valve body 1 to open and close the valve, the electric gate valve further comprises a driver 7, a top cover 5 is fixed at the upper end of the valve cover 2, a support 6 is fixed at the upper end of the top cover 5, the driver 7 is installed on the support 6, the driver 7 comprises a housing 7a, a driving motor 7b, a gear transmission assembly 7c, a worm gear assembly and a switch assembly 7f, the housing 7a is fixed on the support 6, the driving motor 7b is fixedly installed at one side in the housing, the worm 7d is installed on the other side in the shell 7a, the driving motor 7b is in transmission connection with the worm 7d through a gear transmission assembly 7c, the worm 7d is meshed with a worm wheel 7e, the worm wheel 7e is fixed on the upper portion of the valve rod 3, and the switch assembly 7f is installed on the upper portion in the shell 7 a.

Further, as shown in fig. 5, the gear transmission assembly 7c includes a first small gear 7c1, a first large gear 7c2, a second small gear 7c3, a second large gear 7c4, a third small gear 7c5, a third large gear 7c6, a fourth small gear 7c7 and a fourth large gear 7c8, the first small gear 7c1 is installed at the output end of the driving motor 7b, the first large gear 7c2 is engaged with the first small gear 7c1, the first large gear 7c2 is fixedly connected coaxially with the second small gear 7c3, the second large gear 7c4 is engaged with the second small gear 7c3, the third large gear 7c6 is engaged with the third small gear 7c5, the second large gear 7c4 is fixedly connected coaxially with the third small gear 7c5, the third large gear 7c6 is fixedly connected with the fourth small gear 7c7, the fourth large gear 68628 c7, the fourth gearwheel 7c8 is coaxially fixedly connected with the worm 7 d. The gear transmission assembly 7c is reasonably arranged, so that the gear transmission assembly 7c occupies smaller space and has more compact structure.

Further, as shown in fig. 7, the switch assembly 7f includes an electrical board 7f1, a power source 7f2, a contact switch 7f3 and a shift lever 7f4, the electrical board 7f1 is fixed in the housing 7a, the electrical board 7f1 can rotate relative to the valve rod 3, the power source 7f2 is fixed on the electrical board 7f1, the two contact switches 7f3 are symmetrically and fixedly mounted on the electrical board 7f1 with respect to the valve rod 3, the two shift levers 7f4 are fixedly mounted on the valve rod 3, the two shift levers 7f4 are respectively opposite to the corresponding contact switches 7f3, the power source 7f2 is connected to the driving motor 7b, and the contact switch 7f3 is connected to the power source 7f 2.

Further, as shown in fig. 7, the switch assembly 7f further includes an indicator plate 7f5 and a pointer 7f6, the indicator plate 7f5 is fixed to the top end of the valve stem 3, and the pointer 7f6 is fixed to the electrical board 7f 1.

Further, as shown in fig. 8, a stopper 7g is further fixed to the valve rod 3, the stopper 7g is located at the lower portion of the housing 7a, two retaining posts 7h are further mounted at the lower portion of the housing 7a, and when the valve rod 3 rotates, the retaining posts 7h can abut against the side wall of one of the stoppers 7 g. The safety protection is added for preventing the flashboard 4 from moving too much, and after the valve rod 3 is ensured to rotate in place, the stop column 7h can abut against the side wall of the stop block 7g, so that the valve rod 3 stops rotating.

Further, as shown in fig. 2 and 6, a clamping groove is formed in the center of the top end surface of the valve cap 2, a split clamping ring 8 is installed in the clamping groove, and the split clamping ring 8 is clamped on the valve rod 3.

Further, as shown in fig. 2 and 6, a sealing groove 3a is further formed in the valve rod 3, an O-ring 9 is installed in the sealing groove 3a, and the outer wall of the O-ring 9 is in interference fit with the inner wall of the top cover 5.

Further, as shown in fig. 2 and 6, a seal ring 10 is disposed at a top center position of the top cover 5, and the seal ring 10 is sleeved on the valve rod 3.

Further, as shown in fig. 2 and 6, the lower end of the valve rod 3 is a lead screw section 3b, the valve plate 4 includes a valve flap 4a and a T-shaped nut 4b fixed on the top of the valve flap 4a, and the lead screw section 3b at the lower end of the valve rod 3 is connected with the T-shaped nut 4b through screw thread fit.

The working process of the utility model is as follows: assuming that the initial state is a closed state, when the valve is to be opened, the driving motor 7b drives the worm gear assembly through the gear transmission assembly 7c, the worm gear 7e drives the valve rod 3 to rotate, the lower end of the valve rod 3 drives the valve plate 4 to move upwards through lead screw transmission, when the valve plate 4 moves to an upper limit position, the deflector rod 7f4 is in contact with the contact switch 7f3 on one side, the driving motor 7b stops rotating, the valve plate 4 stops moving upwards to prevent over-movement, when the valve is closed, the driving motor 7b rotates reversely to drive the valve plate 4 to move downwards, when the valve plate 4 moves to a lower limit position, the valve rod 7f4 is in contact with the contact switch 7f3 on the other side, the driving motor 7b stops rotating, and the valve plate 4 stops moving downwards.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric gate valve, includes valve body (1), installs valve gap (2) at valve body (1) top, runs through valve gap (2) and stretch into valve rod (3), the cooperation in valve rod (3) lower extreme valve plate (4), valve plate (4) and valve body (1) sliding fit, during rotation valve rod (3), valve plate (4) slide about in valve body (1) in order to realize opening and close its characterized in that of valve: still include driver (7), the upper end of valve gap (2) is fixed with top cap (5), the upper end of top cap (5) is fixed with support (6), install on support (6) driver (7), driver (7) include casing (7a), driving motor (7b), gear drive subassembly (7c), worm gear subassembly and switch module (7f), casing (7a) are fixed on support (6), one side in driving motor (7b) fixed mounting casing (7a), worm gear subassembly includes worm (7d) and worm wheel (7e), the opposite side in casing (7a) is installed to worm (7d), driving motor (7b) are connected through gear drive subassembly (7c) transmission with worm (7d), worm (7d) and worm wheel (7e) meshing, the worm wheel (7e) is fixed on the upper part of the valve rod (3), and the switch component (7f) is arranged on the upper part in the shell (7 a).

2. A power gate valve according to claim 1, wherein: the gear transmission assembly (7c) comprises a first small gear (7c1), a first large gear (7c2), a second small gear (7c3), a second large gear (7c4), a third small gear (7c5), a third large gear (7c6), a fourth small gear (7c7) and a fourth large gear (7c8), the first small gear (7c1) is arranged at the output end of the driving motor (7b), the first large gear (7c2) is meshed with the first small gear (7c1), the first large gear (7c2) is coaxially and fixedly connected with the second small gear (7c3), the second large gear (7c4) is meshed with the second small gear (7c3), the third large gear (7c6) is meshed with the third small gear (7c5), the second large gear (7c4) is coaxially and fixedly connected with the third small gear (7c5), and the third large gear (7c6) is coaxially and fixedly connected with the fourth large gear (7c7), the fourth large gear (7c8) is meshed with the fourth small gear (7c7), and the fourth large gear (7c8) is coaxially and fixedly connected with the worm (7 d).

3. A power gate valve according to claim 1, wherein: the switch assembly (7f) comprises an electric installation plate (7f1), a power supply (7f2), a contact switch (7f3) and a shifting lever (7f4), wherein the electric installation plate (7f1) is fixed in a shell (7a), the electric installation plate (7f1) can rotate relative to a valve rod (3), the power supply (7f2) is fixed on the electric installation plate (7f1), the two contact switches (7f3) are symmetrically and fixedly installed on the electric installation plate (7f1) relative to the valve rod (3), the valve rod (3) is fixedly provided with the two shifting levers (7f4), the two shifting levers (7f4) are respectively opposite to the contact switch (7f3) on the corresponding side, the power supply (7f2) is connected with a driving motor (7b), and the contact switch (7f3) is connected with the power supply (7f 2).

4. A power gate valve according to claim 3, wherein: the switch assembly (7f) further comprises an indicator disc (7f5) and a pointer (7f6), the indicator disc (7f5) is fixed at the top end of the valve rod (3), and the pointer (7f6) is fixed on the electric mounting plate (7f 1).

5. A power gate valve according to claim 1, wherein: the valve rod (3) is further fixed with a stop block (7g), the stop block (7g) is located at the lower portion of the shell (7a), two stop columns (7h) are further mounted at the lower portion of the shell (7a), and when the valve rod (3) rotates, the stop columns (7h) can abut against the side wall of one of the stop blocks (7 g).

6. A power gate valve according to claim 1, wherein: the valve cover is characterized in that a clamping groove is formed in the center of the top end face of the valve cover (2), a split clamping ring (8) is installed in the clamping groove, and the split clamping ring (8) is clamped on the valve rod (3).

7. A power gate valve according to claim 1, wherein: still open on valve rod (3) and have seal groove (3a), install O type circle (9) in seal groove (3a), be interference fit between the outer wall of O type circle (9) and the inner wall of top cap (5).

8. A power gate valve according to claim 1, wherein: the top end center position of top cap (5) is equipped with sealing washer (10), sealing washer (10) suit is on valve rod (3).

9. A power gate valve according to claim 7, wherein: the lower extreme of valve rod (3) is screw section (3b), valve plate (4) include valve clack (4a) and fix T type nut (4b) at valve clack (4a) top, screw section (3b) and T type nut (4b) of valve rod (3) lower extreme pass through screw-thread fit and are connected.