CN210461906U - Locking device for water intake valve of outdoor fire hydrant - Google Patents
Locking device for water intake valve of outdoor fire hydrant Download PDFInfo
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- CN210461906U CN210461906U CN201921522312.3U CN201921522312U CN210461906U CN 210461906 U CN210461906 U CN 210461906U CN 201921522312 U CN201921522312 U CN 201921522312U CN 210461906 U CN210461906 U CN 210461906U
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- fire hydrant
- locking device
- push rod
- motor
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Abstract
The utility model relates to the field of fire hydrants, in particular to a locking device for a water intake valve of an outdoor fire hydrant, which comprises a valve rod, a ratchet wheel, a fixed seat and a bolt body, wherein the ratchet wheel is arranged on the valve rod; the fixing base below is provided with waterproof housing, is provided with PCB board and motor in the waterproof housing, is provided with magnetic induction sensor on the PCB board, and the motor is connected with the PCB board, is provided with the eccentric wheel that corresponds with the push rod on the motor, is provided with magnet on the eccentric wheel. The utility model discloses direct mount saves space on the key body, and the whole seal installation of electrical element, working property is more stable.
Description
Technical Field
The utility model belongs to the technical field of the fire hydrant and specifically relates to an outdoor fire hydrant water intaking valve locking means.
Background
The fire hydrant mainly supplies water to a water supply pipe network of a fire engine to carry out fire extinguishing, and in order to reduce the phenomena of stealing fire hydrant and private water, more and more water sensors are selected to increase a locking device to carry out identity recognition unlocking and water taking.
At present, a locking device is arranged in a bolt cover, a ratchet wheel and pawl mechanism is adopted, a pawl is connected with an output shaft of an electromagnet or a motor through a spring, and the locking device is opened or locked through the stretching or the rotation of a shaft. Due to space limitation, the ratchet mechanism is small, when a person who takes water wants to forcibly open the valve by using a wrench, the ratchet mechanism fails due to excessive force, and the pawl is directly connected with the output shaft, so that the shaft is further damaged, and the whole locking device fails. And because space restriction, locking means has only carried out simple water repellent, very easily wets to lead to the inefficacy, influence normal water intaking. Because the locking device part is more, need assemble one by one on the valve cover, the installation is loaded down with trivial details, takes a lot of work and takes time.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an installation is simple, the outdoor fire hydrant water intaking valve locking means who saves space.
The utility model adopts the following technical scheme:
a locking device of an outdoor fire hydrant water taking valve comprises a valve rod, a ratchet wheel, a fixed seat and a bolt body, wherein the ratchet wheel is installed on the valve rod, the fixed seat is installed on the bolt body, the fixed seat is installed on one side of the valve rod, a push rod is arranged inside the fixed seat, a first spring is sleeved outside the push rod, a pin corresponding to the teeth of the ratchet wheel is arranged at the upper end of the push rod, and a second spring is sleeved at the lower end of the pin; the fixing base below is provided with waterproof housing, is provided with PCB board and motor in the waterproof housing, is provided with magnetic induction sensor on the PCB board, and the motor is connected with the PCB board, is provided with the eccentric wheel that corresponds with the push rod on the motor, is provided with magnet on the eccentric wheel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model replaces the traditional installation in the valve cap, and is directly installed on the bolt body, thus saving space; the rotation of the motor shaft is converted into the linear motion of the push rod and the pin through the eccentric wheel mechanism, so that the consumption of a battery is reduced, and the service life of the motor is prolonged; the electric elements are completely sealed in the waterproof shell, so that the electric elements are not affected by moisture, and the working performance is more stable.
Further, the utility model discloses a preferred scheme is:
the pin is of a cylindrical structure, the top of the pin is an inclined plane, a notch is formed in the middle lower portion of the pin, and an external thread structure connected with an internal thread hole of the push rod is arranged below the notch.
The top of the fixed seat is provided with a D-shaped hole matched with the middle lower part of the pin.
The output shaft of the motor is provided with a pair of bearing seats, and the eccentric wheel is arranged between the two bearing seats.
The lower end of the push rod is sleeved with a limit nut.
The ratchet wheel is fixed on the valve rod through a locking nut.
And the second spring is arranged below the pin thread structure.
Drawings
Fig. 1 is the structure schematic diagram of the utility model:
FIG. 2 is a schematic view of the position of the ratchet and pin;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a schematic structural view of the pin;
in the figure: a valve stem 1; a lock nut 2; a ratchet 3; a tooth slot 301; a pin 4; a cut-out 401; a push rod 5; an upper through hole 501; a middle through-hole 502; a lower through hole 503; a fixed seat 6; a first spring 7; a second spring 8; a waterproof casing 9; a motor 10; an output shaft 1001; a PCB board 11; a first magnetic induction sensor 12; a second magnetic induction sensor 13; a gasket 14; a bearing housing 15; an eccentric wheel 16; a limit nut 17; a first magnet 18; a second magnet 19; a plug body 20.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Referring to the drawings:
a locking device of a water taking valve of an outdoor fire hydrant is composed of a valve rod 1, a ratchet wheel 3, a fixed seat 6 and a bolt body 20, wherein the valve rod 1 is arranged in the center of the bolt body 20, and the ratchet wheel 3 is fixed on the upper portion of the valve rod 1 through a locking nut 2.
One side of key 20 is provided with the locking working chamber, be provided with fixing base 6 and waterproof housing 9 in the locking working chamber, fixing base 6 snap-on is on key 20, the inside vertical ladder through-hole that is provided with of fixing base 6, the through-hole comprises upper portion through-hole 501, middle part through-hole 502 and lower part through-hole 503, upper portion through-hole 501's cross section is D type structure, middle part through-hole 502 and lower part through-hole 503's cross section all is ordinary round hole, and upper portion through-hole 501, middle part through-hole 502 and lower part through-hole 503's aperture increases. A push rod 5 is arranged in the middle through hole 502 and the lower through hole 503, a first spring 7 is sleeved outside the push rod 5, a limiting nut 17 is sleeved outside the bottom of the push rod 5, and the limiting nut 17 prevents the first spring 7 from falling off from the push rod 5; the push rod 5 is of a hollow rod-shaped structure, and the top end of the push rod 5 is provided with an internal thread hole.
The upper end of the push rod 5 is provided with a pin 4, as shown in fig. 4, the pin 4 is of a cylindrical rod-shaped structure, the top of the pin 4 is provided with an inclined surface, it is ensured that the pin 4 can be inserted into a tooth space 301 between two adjacent gear teeth of the ratchet 3, the middle lower part of the pin 4 is provided with a notch 401, the lower end of the notch 401 is provided with an external thread structure connected with an internal thread hole of the push rod 5, and a second spring 8 is sleeved below the external thread structure of the pin 4.
When the end a of the eccentric wheel 16 (i.e. the position with the largest radius of the eccentric wheel) is contacted with the bottom end of the push rod 5, the top end of the pin 4 is just clamped in the tooth groove of the ratchet wheel 3 to lock the ratchet wheel 3, the ratchet wheel 3 can not rotate towards the direction of opening the valve, the valve is in a closed state, when the end b of the eccentric wheel 16 (i.e. the position with the smallest radius of the eccentric wheel) is contacted with the bottom end of the push rod 5, the pin 4 is separated from the tooth groove 301, at the moment, the ratchet wheel 3 can rotate towards the direction of opening the.
The output shaft 1001 of the motor 10 is provided with a pair of bearing seats 15, the eccentric wheel 16 is arranged between the two bearing seats 15, and the bearing seats 15 play an auxiliary supporting role for the output shaft 1001.
In an initial state, the device is in a locking state, the valve is completely closed, at the moment, the end a of the eccentric wheel 16 is in contact with the push rod 5, the pin 4 is inserted into the tooth groove 301 of the ratchet wheel 3, the spring I7 is compressed to the maximum, and the valve rod 1 can only be closed towards the closing direction of the valve; when the motor 10 is electrified to start working, the output shaft 1001 drives the eccentric wheel 16 to rotate until the end b of the eccentric wheel 16 rotates to be in contact with the push rod 5, at the moment, the first spring 7 restores the original state, meanwhile, the push rod 5 integrally moves downwards, the pin 4 moves out of the tooth space 301 of the ratchet wheel 3, when the first magnet 13 is sensed by the second magnetic induction sensor 13, the output signal of the second magnetic induction sensor 13 changes, the motor 10 is powered off, the output shaft 1001 stops rotating, the locking device is in an opening state, the valve rod 1 can rotate towards the opening direction of the valve, meanwhile, the second magnet 19 rotates along with the eccentric wheel 16, and when the second magnet 19 is sensed by the first magnetic induction sensor 12, the output signal of the first magnetic induction sensor; when the lock is closed, the motor 10 is powered on to start working, the output shaft 1001 drives the eccentric wheel 16 to rotate until the end a of the eccentric wheel 16 rotates to be in contact with the push rod 5, at the moment, the spring I7 is in the maximum compression state, meanwhile, the push rod 5 moves upwards integrally, the pin 4 is inserted into the tooth groove 301 of the ratchet wheel 3, when the magnetic induction sensor I12 senses the magnet I18, the output signal of the magnetic induction sensor I12 changes, the motor 10 is powered off, meanwhile, the output shaft 1001 stops rotating, the locking device is in the locking state, the valve rod 1 can only be closed towards the closing direction of the valve, the magnet II 19 rotates along with the eccentric wheel 16, and when the magnetic induction sensor II 13 senses the magnet II 19, the output signal of the magnetic induction.
The utility model provides a it is sealed through sealed 14 of filling up in the waterproof case 9, strengthen the dampproofing and waterproofing performance of waterproof case 9, improve electrical component's practical life.
The above is only the concrete implementation manner of the present invention, but the protection of the present invention is not limited to this, and all the changes or substitutions related to the equivalent proposed by the technical features of the present technical solution that can be thought by those skilled in the art are covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides an outdoor fire hydrant water intaking valve locking means, includes the valve rod, the ratchet, the fixing base, ties the body, and the ratchet is installed on the valve rod, and the fixing base is installed on tying the body, its characterized in that: the fixed seat is arranged on one side of the valve rod, a push rod is arranged inside the fixed seat, a first spring is sleeved outside the push rod, a pin corresponding to the teeth of the ratchet wheel is arranged at the upper end of the push rod, and a second spring is sleeved at the lower end of the pin; the fixing base below is provided with waterproof housing, is provided with PCB board and motor in the waterproof housing, is provided with magnetic induction sensor on the PCB board, and the motor is connected with the PCB board, is provided with the eccentric wheel that corresponds with the push rod on the motor, is provided with magnet on the eccentric wheel.
2. The locking device of the outdoor fire hydrant water intaking valve according to claim 1, wherein: the pin is of a cylindrical structure, the top of the pin is an inclined plane, a notch is formed in the middle lower portion of the pin, and an external thread structure connected with an internal thread hole of the push rod is arranged below the notch.
3. The locking device of the outdoor fire hydrant water intaking valve according to claim 1, wherein: the top of the fixed seat is provided with a D-shaped hole matched with the middle lower part of the pin.
4. The locking device of the outdoor fire hydrant water intaking valve according to claim 1, wherein: the output shaft of the motor is provided with a pair of bearing seats, and the eccentric wheel is arranged between the two bearing seats.
5. The locking device of the outdoor fire hydrant water intaking valve according to claim 1, wherein: the lower end of the push rod is sleeved with a limit nut.
6. The locking device of the outdoor fire hydrant water intaking valve according to claim 1, wherein: the ratchet wheel is fixed on the valve rod through a locking nut.
7. The locking device of the outdoor fire hydrant water intaking valve according to claim 2, wherein: and the second spring is arranged below the pin thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921522312.3U CN210461906U (en) | 2019-09-12 | 2019-09-12 | Locking device for water intake valve of outdoor fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921522312.3U CN210461906U (en) | 2019-09-12 | 2019-09-12 | Locking device for water intake valve of outdoor fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461906U true CN210461906U (en) | 2020-05-05 |
Family
ID=70432207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921522312.3U Active CN210461906U (en) | 2019-09-12 | 2019-09-12 | Locking device for water intake valve of outdoor fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461906U (en) |
-
2019
- 2019-09-12 CN CN201921522312.3U patent/CN210461906U/en active Active
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