CN219080127U - Wellhead anti-falling warning device - Google Patents

Wellhead anti-falling warning device Download PDF

Info

Publication number
CN219080127U
CN219080127U CN202222976700.7U CN202222976700U CN219080127U CN 219080127 U CN219080127 U CN 219080127U CN 202222976700 U CN202222976700 U CN 202222976700U CN 219080127 U CN219080127 U CN 219080127U
Authority
CN
China
Prior art keywords
needle valve
valve rod
shell
trigger
warning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222976700.7U
Other languages
Chinese (zh)
Inventor
杨晟东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202222976700.7U priority Critical patent/CN219080127U/en
Application granted granted Critical
Publication of CN219080127U publication Critical patent/CN219080127U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Emergency Alarm Devices (AREA)

Abstract

The utility model discloses a wellhead anti-falling warning device, which comprises a shell, wherein a warning balloon is stored at the upper part of the shell; the middle part is provided with a needle valve and an accidental needle valve opening mechanism; the lower part is provided with a pressure air tank; the top outlet of the pressure gas tank is provided with a sealing membrane, and the needle valve comprises a connecting pipe and a needle valve rod; when the needle valve rod is pressed downwards to pierce the sealing membrane, the warning balloon is inflated and sprung; the needle valve accidental opening mechanism comprises a bolt seat, a trigger bolt, an elastic piece and an elastic piece; the elastic sheet is arranged in the elastic sheet chute, and the inner end of the elastic sheet passes through the shell and the connecting pipe; when the trigger bolt is inserted into the trigger pin hole, the inner end of the elastic sheet is arranged between the sealing film and the needle valve rod; when the trigger bolt is pulled out, the inner end of the elastic sheet moves out of the position of the sealing membrane, the needle valve rod falls down to pierce the sealing membrane, the gas of the pressure gas tank flows into the warning balloon, and the warning balloon is inflated and sprung up. After the warning device is installed at the well head, once the well lid is lost, the warning balloon can be popped up at the well head to warn pedestrians and vehicles not to be involved in danger.

Description

Wellhead anti-falling warning device
Technical Field
The utility model relates to an urban road facility, in particular to a safety facility of an underground pipe network wellhead of an urban road.
Background
With the increasing popularization of urban construction, the application of underground road pipe networks is more and more widespread, wherein the underground road pipe networks comprise pipelines of various water conservancy, electric power, communication and the like of cities, the pipelines are the basis and blood vessels for the normal operation of modern cities, the underground road networks are used for conveying various necessary resources and taking away various wastes for each city person every minute and every second, however, people cannot see and feel the existence of the underground road networks at ordinary times, people can notice the existence of the underground road covers which are possibly only visible everywhere, people can sometimes open the inspection shaft covers not for reasons of maintenance, dredging and the like, people can not realize that a huge underground pipeline network is arranged below each inspection shaft cover, in some sense, people serve each city, but when the inspection shaft covers are lost for some reasons, the exposed well heads can bring great danger to passers, collide and even fall down caused by the water of the underground pipeline. These include storms, ponding, violent injuries, and the like.
The sewer wells are generally distributed near the residential building gates of the communities; and the sewage wells are distributed in the middle of the main and secondary main roads. Well covers of telecommunication, gas, communication cables, heating power, septic tanks and the like are generally arranged on sidewalks. The drainage mode on the urban road in the raining at regular time mainly comprises the steps of flowing into the urban inland river through the sewage pipe network in the sewage pipe network under the urban of the sewage grate channels at two sides of the road. The well lid is washed away frequently when heavy road ponding occurs in urban storm, or the well lid is pried manually because of drainage, or the well lid is damaged due to various reasons, so that serious accidents of pedestrian falling occur.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the wellhead anti-falling warning device with a unique structure, when the wellhead of the pavement is provided with the wellhead anti-falling warning device, once the well lid is lost or removed due to various abnormal reasons, a warning balloon which is a warning sign is obvious to pop out from the top end of the warning device so as to warn pedestrians and vehicles not to be involved in danger.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the wellhead anti-falling warning device comprises a cylindrical shell, wherein an upper part, a middle part and a lower part are arranged in the shell, and an inflatable warning balloon capable of bouncing upwards is stored at the upper part of the shell; the middle part is provided with a needle valve and an accidental needle valve opening mechanism; the lower part is provided with a pressure air tank;
the outer side of the outer surface of the shell is provided with a fixed hanging structure, so that the shell can be fixedly hung on the inner wall of the wellhead;
the top end of the shell is provided with a balloon ejecting opening, and when the shell is inflated, the warning balloon is ejected upwards from the balloon ejecting opening to form a road surface warning sign;
the top outlet of the pressure gas tank is provided with a sealing membrane, the needle valve comprises a connecting pipe and a needle valve rod, the connecting pipe is fixedly connected with the shell, the lower end of the connecting pipe is in airtight connection with the upper end of the pressure gas tank, and the upper end of the connecting pipe is in airtight connection with the inflation inlet end of the lower end of the warning balloon; the needle valve rod is vertically guided to slide in the connecting pipe, and the lower end of the needle valve rod is provided with a conical needle head; the needle valve rod is provided with an air guide channel, an air inlet at the lower end of the air guide channel is arranged at the needle head of the needle valve rod, an air outlet at the upper end of the air guide channel is communicated with the air charging port of the warning balloon, and when the needle valve rod is pressed down to puncture the sealing membrane, the air in the pressure air tank can enter the warning balloon through the air guide channel;
the needle valve accidental opening mechanism comprises a latch seat, a trigger latch, a spring plate and an elastic piece; the latch seat is fixedly arranged on the outer peripheral surface of the shell, a vertical trigger pin hole is formed in the latch seat, and the trigger latch can be matched and inserted into the trigger pin hole and can be pulled out upwards;
a spring plate sliding groove extending along the radial direction of the shell is arranged in the latch seat, the spring plate is arranged in the spring plate sliding groove in a matching way, and the inner end of the spring plate passes through the shell and the connecting pipe; when the trigger bolt is inserted into the trigger pin hole, the outer end of the elastic sheet is limited by the trigger bolt, and the inner end of the elastic sheet is arranged between a sealing membrane of the top outlet of the pressure gas tank and the needle valve rod; the elastic piece applies outward thrust to the elastic piece; when the trigger bolt is pulled out upwards from the trigger pin hole, the elastic sheet slides outwards along the elastic sheet sliding groove, the inner end of the elastic sheet moves out of the position of the sealing membrane at the top outlet of the pressure gas tank, at the moment, the needle valve rod falls down to puncture the sealing membrane, gas in the pressure gas tank flows into the warning balloon, and the warning balloon is inflated and sprung upwards.
Further, the air guide channel is an air guide hole arranged in the needle valve rod, or the air guide channel is an air guide groove arranged on the outer peripheral surface of the needle valve rod.
Further, a connecting rope is further arranged, the lower end of the connecting rope is in transmission connection with the upper end of the trigger bolt, and the upper end of the connecting rope can be in transmission connection with a well lid which is arranged at a well mouth in a matching mode.
Further, the fixed hanging structure is a buckle hanging structure.
The fixed hanging structure comprises the following components: the shell is fixedly provided with a convex buckle which can be fixedly connected with a clamping groove on a clamping plate fixedly arranged on the inner wall of the wellhead in a matching manner.
Further, the trigger pin is also provided with a safety pin in a pluggable manner, the pin seat and the trigger pin are respectively provided with a seat safety pin hole and a pin safety pin hole in a matching manner along the horizontal direction, and the safety pin can be penetrated in the seat safety pin hole and the pin safety pin hole in a matching manner so as to limit the vertical movement of the trigger pin.
Further, the elastic piece is a shrapnel spring, the shrapnel spring is a compression spring, the inner end of the shrapnel spring is supported on the connecting pipe, and the outer end of the shrapnel spring is supported on the shrapnel.
Further, a pressing spring is sleeved on the needle valve rod, the upper end of the pressing spring and the inner wall of the connecting pipe form a support, and the lower end of the pressing spring and the needle valve rod form an elastic support.
Further, a group of handles are arranged on the left side and the right side of the outer surface of the shell, wherein the left side and the right side are not provided with a fixed hanging structure and a bolt seat.
The wellhead anti-falling warning device provided by the utility model has the advantages that the well cover is in effective transmission connection with the trigger bolt through the connecting rope, so that when the well cover is lost or removed due to various abnormal reasons, the top of the device can pop up a warning balloon which is obvious and used as a warning sign so as to warn pedestrians and vehicles not to be involved in danger.
Not only greatly reduced because of the waterlogging appears with the well lid wash away or the people take (steal) when walking the well lid the danger that produces to the pedestrian, the device can also match almost in installing all current well heads moreover, has extremely strong suitability.
Drawings
In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below, wherein:
FIG. 1 is a schematic diagram of a wellhead anti-drop warning device according to the present utility model.
FIG. 2 is a schematic view of the needle valve portion of the wellhead anti-drop warning device of the present utility model.
FIG. 3 is a schematic view of the wellhead anti-drop warning device of the present utility model.
Fig. 4 is a schematic diagram of the warning balloon popping up for warning.
In the figure:
1. shell 2, warning balloon
3. Pressure gas tank 301 and sealing membrane
4. Well mouth 5 and well cover
6. Connecting pipe 7, needle valve rod
701. Conical needle 702 and air vent
8. Pin base 801 and trigger pin hole
802. Spring piece chute 9 and trigger bolt
10. Spring 11, spring
12. Connecting rope 13 and safety bolt
14. Pressing down spring 15, handle
16. Sealing cover
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and examples:
fig. 1 shows a wellhead anti-falling warning device, which comprises a cylindrical shell 1, wherein the shell 1 is internally provided with an upper part, a middle part and a lower part, and an inflatable warning balloon 2 which can be sprung up is stored at the upper part; the middle part is provided with a needle valve and an accidental needle valve opening mechanism; the lower part is provided with a pressure gas tank 3.
The outer side of the outer surface of the shell 1 is provided with a fixed hanging structure, so that the shell 1 can be fixedly hung on the inner wall of the wellhead 4, as shown in fig. 3. The fixed structure of hanging is the buckle structure of hanging, and specific structure is: the shell 1 is fixedly provided with a convex buckle which can be fixedly connected with a clamping groove on a clamping plate fixedly arranged on the inner wall of the wellhead 4. Of course, the above buckle hanging structure can also be that a clamping plate with a clamping groove is fixedly arranged on the shell 1, and a convex buckle is fixedly arranged on the inner wall of the wellhead 4; the fixed hanging structure can also be other conventional fixed hanging structures, such as hooks and the like; the housing 1 may be stably hung at a suitable position on the inner wall of the wellhead.
The top end of the shell 1 is provided with a balloon ejecting opening, and the warning balloon 2 is ejected upwards from the balloon ejecting opening to form a road surface warning sign when inflated. A sealing cover 16 is arranged at the balloon ejecting opening at the top end of the shell 1, so that the shell 1 looks like a closed tank when the warning balloon 2 is not ejected, and meanwhile, the sealing cover 16 also plays a role in preventing sundries and garbage from entering the shell 1 to influence the normal operation of the device.
The top outlet of the pressure gas tank 3 is provided with a closing membrane 301 to ensure that the pressure gas tank 3 is not leaking gas without sharp objects piercing the closing membrane 301. The needle valve comprises a connecting pipe 6 and a needle valve rod 7, the connecting pipe 6 is fixedly connected with the shell 1, the lower end of the connecting pipe 6 is in airtight connection with the upper end of the pressure gas tank 3, and the upper end of the connecting pipe 6 is in airtight connection with the inflation inlet end of the lower end of the warning balloon 2; the needle valve rod 7 slides in the connecting pipe 6 in a vertical guiding way, a conical needle 701 is arranged at the lower end of the needle valve rod 7, an air guide hole 702 is formed in the needle valve rod, an air inlet at the lower end of the air guide hole 702 is formed in the needle 701 of the needle valve rod 7, an air outlet at the upper end of the air guide hole 702 is communicated with an air charging port of the warning balloon 2, and when the needle valve rod 7 is pressed down to pierce the sealing membrane 301, air in the pressure air tank 3 can enter the warning balloon 2 through the air guide hole 702, as shown in fig. 2.
The air guide hole 702 may be an air guide groove disposed on the outer circumferential surface of the needle valve rod 7, an air inlet at the lower end of the air guide groove is disposed at the needle of the needle valve rod, and an air outlet at the upper end of the air guide groove is communicated with the air charging port of the warning balloon 2. As long as an air guide passage can be formed, and when the needle valve lever 7 is pushed down to pierce the sealing film 301, the air in the pressure air tank 3 can enter the warning balloon 2 through the air guide passage.
The needle valve accidental opening mechanism is arranged in the middle of the shell 1 and comprises a bolt seat 8, a trigger bolt 9, a shrapnel spring 11 and a shrapnel 10; the outer peripheral surface of the shell 1 is fixedly provided with the latch seat 8 on one side opposite to the fixed hanging structure (of course, the setting position can be adjusted on other positions of the outer peripheral surface of the shell 1), the latch seat 8 is provided with a vertical trigger pin hole 801, the trigger pin 9 can be matched and inserted into the trigger pin hole 801 and can be pulled out upwards, and in order to prevent the trigger pin 9 from falling downwards, the upper end of the trigger pin 9 is provided with a limit flange.
A spring plate chute 802 extending along the radial direction of the shell is arranged in the latch seat 8, the spring plate 9 is arranged in the spring plate chute 802 in a matching way, and the inner end of the spring plate 9 passes through the shell 1 and the connecting pipe 6; when the trigger bolt 9 is inserted into the trigger pin hole 801, the outer end of the elastic sheet 10 is limited by the trigger bolt 9, and the inner end of the elastic sheet 10 is arranged between the sealing membrane 301 of the top outlet of the pressure gas tank 3 and the needle valve rod 7; the elastic sheet spring 11 is a compression spring, the inner end of the elastic sheet spring 11 is supported on the pipe wall of the connecting pipe 6, the outer end of the elastic sheet spring 11 is supported on the elastic sheet 10, and the elastic sheet spring 11 applies an outward thrust to the elastic sheet 10; when the trigger pin 9 is pulled up from the trigger pin hole 801, the elastic sheet 10 slides outwards along the elastic sheet sliding groove 802, the inner end of the elastic sheet 10 moves out of the position of the sealing membrane 301 at the top outlet of the pressure gas tank 3, at this time, the needle valve rod 7 falls down to puncture the sealing membrane 301, the gas in the pressure gas tank 3 flows into the warning balloon 2, and the warning balloon 2 is inflated and ejected upwards.
The elastic plate spring 11 may be an elastic steel bar, one end of the elastic steel bar is fixed to the connecting pipe 6, and an outer elastic end of the elastic steel bar is supported on the elastic plate 10 to apply a radially outward thrust to the elastic plate 10. Alternatively, the elastic piece spring 11 may be other conventional elastic pieces, so long as the elastic piece can apply an elastic pushing force to the elastic piece 10 to drive the elastic piece to slide outwards.
The warning device also be provided with a connecting rope 12 (rubber coated wire rope), the connecting rope 12 lower extreme with trigger bolt 9's upper end transmission is connected, the upper end of connecting rope can with match set up in well head well lid transmission connection (can be through couple connection etc.).
In order to prevent the trigger bolt 9 of the warning device from false triggering in the process of storage and transportation, a safety bolt 13 is also pluggable on the trigger bolt 9, a seat safety bolt hole and a pin safety bolt hole are respectively arranged on the bolt seat 8 and the trigger bolt 9 in a matching manner along the horizontal direction, the safety bolt 13 can be arranged in the seat safety bolt hole and the pin safety bolt hole in a penetrating manner in a matching manner, and when the trigger bolt 9 is inserted in the trigger bolt hole 801 and the safety bolt 13 is arranged in the bolt seat 8 and the trigger bolt 9 in a penetrating manner, the trigger bolt 9 is locked in the trigger bolt hole 801 so as to limit the vertical movement of the trigger bolt 9 and the movement of a false trigger spring piece. The warning device can also be used for locking the trigger bolt 9 and preventing false triggering by other structures such as a lock catch box, a binding belt and the like without arranging the safety bolt 13 because of different designs and requirements.
The needle valve rod 7 is further sleeved with a pressing spring 14, the pressing spring 14 is a compression spring, the upper end of the pressing spring 14 and the inner wall of the connecting pipe 6 form a support, and the lower end of the pressing spring 14 and the needle valve rod 7 form an elastic support, as shown in fig. 2. When the elastic sheet 10 arranged between the sealing membrane 301 and the needle valve rod 7 is removed, the needle valve rod 7 has enough downward pressure under the drive of the downward spring 14 to puncture the sealing membrane 301, so that the pressure gas tank 3 can complete the release of gas to inflate the warning balloon 2. It is of course also possible to provide the needle valve lever 7 with sufficient pressing-down energy to pierce the closure membrane 301 by other constructions, for example by providing the needle valve lever 7 with a counter weight which makes it possible to pierce the closure membrane 301 under its own weight.
In order to make the installation and the use of the warning device more convenient, a group of handles 15 are arranged on the left side and the right side of the outer surface of the shell, which are not provided with a fixed hanging structure and the latch seats 8.
When the wellhead anti-falling warning device is installed, the wellhead anti-falling warning device is fixedly hung on the well wall of the wellhead 4 through the buckle hanging structure, an angle of 30 degrees is reserved for the well lid 5 temporarily by a person or other supports before closing (as shown in fig. 2), the upper end of the connecting rope 12 is fixedly connected with the well lid 5, and the connecting rope 12 is kept at a certain tightness. After the correct installation is determined, the safety bolt 13 is pulled out of the bolt seat 8 (the trigger bolt is pulled out once the well cover 5 moves beyond the safety distance, and the warning balloon 2 is ejected upwards to form a warning sign on the road surface, as shown in fig. 4). The well lid 5 is then ready to be covered until the installation is completed. If the warning is not triggered, and the warning device is required to be overhauled or replaced due to the problems of service life and the like, the safety bolt 13 is reinserted into the bolt seat 8 and the trigger bolt 9 only by lifting the well cover 5 by 30 degrees (the warning is not triggered at the moment), the trigger bolt can be locked, and then the warning device can be disassembled for overhauling or replacing according to the reverse operation of the steps.
The wellhead anti-falling warning device can be adapted to various wellheads, and when the well lid 5 is lost or removed due to various abnormal reasons, a conspicuous warning balloon 2 can be popped up to warn pedestrians and vehicles not to be involved in danger. Especially, in stormy weather, after the rainwater washes away the well cover 5, pedestrians and vehicles cannot recognize the huge danger of losing the well mouth 4 of the well cover 5 under water at all, and the danger of the well mouth at the place can be recognized at a distance after the warning device is used.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A well head anti-drop warning device, its characterized in that: the device comprises a cylindrical shell, wherein the shell is internally provided with an upper part, a middle part and a lower part, and the upper part is provided with an inflatable warning balloon; the middle part is provided with a needle valve and an accidental needle valve opening mechanism; the lower part is provided with a pressure air tank;
the outer side of the outer surface of the shell is provided with a fixed hanging structure, so that the shell can be fixedly hung on the inner wall of the wellhead;
the top end of the shell is provided with a balloon ejecting opening, and when the shell is inflated, the warning balloon is ejected upwards from the balloon ejecting opening to form a road surface warning sign;
the top outlet of the pressure gas tank is provided with a sealing membrane, the needle valve comprises a connecting pipe and a needle valve rod, the connecting pipe is fixedly connected with the shell, the lower end of the connecting pipe is in airtight connection with the upper end of the pressure gas tank, and the upper end of the connecting pipe is in airtight connection with the inflation inlet end of the lower end of the warning balloon; the needle valve rod is vertically guided to slide in the connecting pipe, and the lower end of the needle valve rod is provided with a conical needle head; the needle valve rod is provided with an air guide channel, an air inlet at the lower end of the air guide channel is arranged at the needle head of the needle valve rod, an air outlet at the upper end of the air guide channel is communicated with the air charging port of the warning balloon, and when the needle valve rod is pressed down to puncture the sealing membrane, the air in the pressure air tank can enter the warning balloon through the air guide channel;
the needle valve accidental opening mechanism comprises a latch seat, a trigger latch, a spring plate and an elastic piece; the latch seat is fixedly arranged on the outer peripheral surface of the shell, a vertical trigger pin hole is formed in the latch seat, and the trigger latch can be matched and inserted into the trigger pin hole and can be pulled out upwards;
a spring plate sliding groove extending along the radial direction of the shell is arranged in the latch seat, the spring plate is arranged in the spring plate sliding groove in a matching way, and the inner end of the spring plate passes through the shell and the connecting pipe; when the trigger bolt is inserted into the trigger pin hole, the outer end of the elastic sheet is limited by the trigger bolt, and the inner end of the elastic sheet is arranged between a sealing membrane of the top outlet of the pressure gas tank and the needle valve rod; the elastic piece applies outward thrust to the elastic piece; when the trigger bolt is pulled out upwards from the trigger pin hole, the elastic sheet slides outwards along the elastic sheet sliding groove, the inner end of the elastic sheet moves out of the position of the sealing membrane at the top outlet of the pressure gas tank, at the moment, the needle valve rod falls down to puncture the sealing membrane, gas in the pressure gas tank flows into the warning balloon, and the warning balloon is inflated and sprung upwards.
2. The apparatus according to claim 1, wherein: the air guide channel is an air guide hole arranged in the needle valve rod, or the air guide channel is an air guide groove arranged on the outer peripheral surface of the needle valve rod.
3. The apparatus according to claim 1, wherein: the well lid is characterized by further comprising a connecting rope, wherein the lower end of the connecting rope is in transmission connection with the upper end of the trigger bolt, and the upper end of the connecting rope can be in transmission connection with a well lid matched with the well mouth.
4. The apparatus according to claim 1, wherein: the fixed hanging structure is a buckle hanging structure.
5. The device of claim 4, wherein the fixed hanging structure is: the shell is fixedly provided with a convex buckle which can be fixedly connected with a clamping groove on a clamping plate fixedly arranged on the inner wall of the wellhead in a matching manner.
6. The apparatus according to any one of claims 1 to 5, wherein: the trigger pin is also provided with a safety pin in a pluggable manner, the pin seat and the trigger pin are respectively provided with a seat safety pin hole and a pin safety pin hole in a matching manner along the horizontal direction, and the safety pin can be penetrated in the seat safety pin hole and the pin safety pin hole in a matching manner so as to limit the vertical movement of the trigger pin.
7. The apparatus according to claim 6, wherein: the elastic piece is a shrapnel spring, the shrapnel spring is a compression spring, the inner end of the shrapnel spring is supported on the connecting pipe, and the outer end of the shrapnel spring is supported on the shrapnel.
8. The apparatus according to claim 6, wherein: the needle valve rod is further sleeved with a pressing spring, the upper end of the pressing spring and the inner wall of the connecting pipe form a support, and the lower end of the pressing spring and the needle valve rod form an elastic support.
9. The apparatus according to claim 7, wherein: the needle valve rod is further sleeved with a pressing spring, the upper end of the pressing spring and the inner wall of the connecting pipe form a support, and the lower end of the pressing spring and the needle valve rod form an elastic support.
10. The apparatus according to claim 6, wherein: the shell outer surface is provided with a group of handles on the left side and the right side without a fixed hanging structure and a bolt seat.
CN202222976700.7U 2022-11-08 2022-11-08 Wellhead anti-falling warning device Active CN219080127U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222976700.7U CN219080127U (en) 2022-11-08 2022-11-08 Wellhead anti-falling warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222976700.7U CN219080127U (en) 2022-11-08 2022-11-08 Wellhead anti-falling warning device

Publications (1)

Publication Number Publication Date
CN219080127U true CN219080127U (en) 2023-05-26

Family

ID=86407484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222976700.7U Active CN219080127U (en) 2022-11-08 2022-11-08 Wellhead anti-falling warning device

Country Status (1)

Country Link
CN (1) CN219080127U (en)

Similar Documents

Publication Publication Date Title
CN203939047U (en) A kind of buoy warning thing
CN109339113A (en) A kind of new type of safe well lid with enclosing function
CN219080127U (en) Wellhead anti-falling warning device
CN107816061A (en) For automatically adjusting the inspection well cover of displacement
CN103741611B (en) A kind of device for alarm manhole well lid dislocation
CN217379004U (en) Sewer well cover plate
CN203440833U (en) Grating inner cover device used for preventing people from falling into drainage inspection well
CN203960906U (en) A kind of safety warning well cover
CN210315910U (en) Rain sewage pipe well
CN103352481B (en) The city pavement manhole cover of the antitheft water drainage of a kind of multipurpose safety
CN208105327U (en) A kind of intelligent well cover of electrichydraulic control
CN206220128U (en) Safety type well cover for sewer
CN205999927U (en) Scalable well cover for sewer
CN210088114U (en) Valve protection device for drainage pipe of runoff pond
CN213868171U (en) Explosion-proof structure that dashes of drainage engineering
CN111364521A (en) Valve wellhead device
CN208586726U (en) A kind of novel urban transportation anti-theft security inspection shaft
CN215857871U (en) A intelligent inspection shaft lid for urban sewage pipe network
CN219753309U (en) Anti-drop safety manhole cover
CN205445372U (en) Utility tunnel discharging material silo theftproof is fleed and is covered door
CN111705841B (en) Well cover structure for reducing and avoiding drainage shaft blowout and response method thereof
CN214328987U (en) Safety prompting well lid
CN201649130U (en) Resin-based composite material multifunctional manhole cover with main and auxiliary layers
CN204385767U (en) A kind of safe theft-proof well cover
CN209779695U (en) Well lid for municipal works

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant