CN213709793U - Well chamber safety device - Google Patents

Well chamber safety device Download PDF

Info

Publication number
CN213709793U
CN213709793U CN202022425541.2U CN202022425541U CN213709793U CN 213709793 U CN213709793 U CN 213709793U CN 202022425541 U CN202022425541 U CN 202022425541U CN 213709793 U CN213709793 U CN 213709793U
Authority
CN
China
Prior art keywords
disc
lid
cover body
well chamber
safety device
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
CN202022425541.2U
Other languages
Chinese (zh)
Inventor
常大为
黄维
戈浩祯
张海强
魏强
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.)
Beijing Jingyan Water Co ltd
Original Assignee
Beijing Jingyan Water Co ltd
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 Beijing Jingyan Water Co ltd filed Critical Beijing Jingyan Water Co ltd
Priority to CN202022425541.2U priority Critical patent/CN213709793U/en
Application granted granted Critical
Publication of CN213709793U publication Critical patent/CN213709793U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to a well chamber safety device, it includes a barrel, an annular that communicates each other with the barrel inner wall is seted up at the barrel top, the embedded lid that is used for sheltering from the barrel that is equipped with of annular, an annular draw-in groove has been seted up to the barrel inner wall, the lid is provided with a plurality of linking arm towards one side of well chamber, the one end and the lid lower surface of linking arm rotate to be connected, the tip rigid coupling that the linking arm deviates from the lid has a fixture block that is used for blocking the establishment each other with the draw-in groove, lid lower surface installs the torsional spring that makes the fixture block towards draw-in groove direction pivoted, the lower surface of lid rotates and is connected with a rolling disc, be provided with a stay cord between rolling disc and every fixture block, the both ends of stay cord respectively with rolling disc and fixture block mutual. This application has the direct performance of opening the lid of reduction non-staff, improves the effect to the interior protection of establishing of well room.

Description

Well chamber safety device
Technical Field
The application relates to the field of well chamber burglary prevention, in particular to a well chamber safety device.
Background
In the long-distance laying of the waterway pipeline, a plurality of well chambers are required to be arranged on the waterway pipeline along the way so that working personnel can check the operating condition of the waterway pipeline.
The well chamber is often provided with a cylinder communicated with the well chamber and a cover body covering the cylinder, and the traditional cover body is directly covered on the cylinder, so that non-working personnel can easily separate the cover body from the cylinder, open the well chamber and enter the well chamber, and perform misoperation on a valve and the like on a water pipeline in the well chamber, thereby influencing the normal work of the water pipeline.
SUMMERY OF THE UTILITY MODEL
In order to reduce the possibility that the cover body is opened by mistake and improve the protection to the indoor facilities, the application provides a well chamber safety device.
The application provides a well room safety device adopts following technical scheme:
the utility model provides a well chamber safety device, which comprises a barrel, an annular that communicates each other with the barrel inner wall is seted up at the barrel top, the embedded lid that is used for sheltering from the barrel that is equipped with of annular, an annular draw-in groove has been seted up to the barrel inner wall, the lid is provided with a plurality of linking arm towards one side of well chamber, the one end and the lid lower surface of linking arm rotate to be connected, the tip rigid coupling that the linking arm deviates from the lid has a fixture block that is used for blocking the establishment each other with the draw-in groove, lid lower surface installs and makes the fixture block towards draw-in groove direction pivoted torsional spring, the lower surface of lid rotates and is connected with a rolling dish, be provided with a stay cord between rolling dish and every fixture block, the both ends of stay cord respectively with rolling dish and fixture.
Through adopting above-mentioned technical scheme, when covering the lid and establishing the barrel, the staff at first twines partial stay cord on the rolling dish through rotating assembly, the fixture block is under the pulling of stay cord, the direction motion towards the rolling dish, later the staff establishes the lid card in the annular and removes the limiting displacement to rotating assembly, then the one end that the linking arm deviates from the lid will move towards rather than close draw-in groove under the elastic action of torsional spring, make the fixture block tip insert in the draw-in groove, thereby the motion of lid along barrel direction of height has been restricted, and then make lid and barrel reciprocal anchorage, the joint structure of fixture block and draw-in groove is comparatively hidden, the possibility that non-staff directly dismantled the lid from the barrel has been reduced, the protection of carrying out the facility in the well room has been improved.
Optionally, a first through-hole has been seted up to the lid upper surface, runner assembly is including inserting in the first through-hole and with the dwang that first through-hole rotation is connected, the bottom of dwang and the upper surface reciprocal anchorage of rolling dish, the top rigid coupling of dwang has a disc.
Through adopting above-mentioned technical scheme, when needs rotate the rolling dish, the rotatable disc of staff to drive dwang and rolling dish and rotate, and then twine partial stay cord on the rolling dish, the simple operation has improved the operating efficiency of staff to the rolling dish.
Optionally, the upper surface of the cover body is provided with a groove for accommodating the disc, and the upper surface of the disc is provided with a first slot for inserting a tool and driving the disc to rotate.
By adopting the technical scheme, the upper surface of the cover body is kept flush, so that the possibility of damage to the rotating assembly caused by treading the cover body by people is reduced; and the embedded arrangement of the disc reduces the misoperation of non-working personnel on the disc.
Optionally, a plurality of second slots are formed in the bottom wall of the groove, the second slots are evenly distributed around the central line of the rotating rod, a second through hole matched with the second slots is formed in the upper surface of the disc, and when the winding disc winds the pull rope to separate the clamping block from the clamping groove, the second through hole is aligned with one of the second slots and a bolt is inserted into the second through hole and the one of the second slots together.
Through adopting above-mentioned technical scheme, the card of bolt and second slot is established the free rotation that has restricted disc and recess to make the stay cord of winding on the rolling dish can not loosen once more because of the free rotation of rolling dish, the staff of being convenient for carries the lid and carries out the work of ann tearing open to the lid, thereby improved the maintenance efficiency of water route pipeline.
Optionally, a cover plate with a cross section equal to that of the first slot is arranged at the top of the first slot, a spring is arranged between the cover plate and the bottom of the first slot, two ends of the spring are fixedly connected with the cover plate and the bottom wall of the first slot respectively, and when the spring is in a natural state, the upper surface of the cover plate is flush with the upper surface of the disc.
Through adopting above-mentioned technical scheme, hide first slot through sheltering from of apron, reduced the possibility that non-staff found first slot and use instrument operation, and then reduced non-staff's possibility of entering into the well indoor, improved the holistic mistake operability of preventing of safety device.
Optionally, the rolling dish is the cavity structure, the vertical rigid coupling of lower surface of apron has a conflict post, and the conflict post deviates from the tank bottom and the dwang of first slot and enters into the rolling dish cavity of apron, has installed wireless transmitter and pressure sensor in the cavity of rolling dish, and wireless transmitter and pressure sensor electricity are connected, and when promoting the apron to the dwang direction, the tip of conflict post triggers pressure sensor.
Through adopting above-mentioned technical scheme, when non-staff's use of tools promotes the apron to the dwang direction, the tip of conflict post will contradict on pressure sensor, make pressure sensor's pressure signal transmit to the wireless receiver of distal end and carry the controller through wireless transmitter, the increase of the forced induction signal that the controller received triggers the alarm and reports to the police, the warning that the messenger lies in the staff of distal end and sends through the alarm is reacted, thereby timely protects the lid, further reduction lid is by the possibility that non-staff opened.
Optionally, a plurality of universal wheels for limiting the contact between the winding disc and the surrounding environment are fixed on the lower surface of the cover body.
Through adopting above-mentioned technical scheme, make the staff when putting subaerial with the lid, the universal wheel plays the supporting role to the lid, has reduced the direct possibility that brings the damage to the rolling dish with ground contact of rolling dish, improves the protection efficiency to the rolling dish to the setting up of universal wheel makes the staff changeing and removes the lid.
Optionally, an arc surface is formed at the edge of the end of the plug pin.
Through adopting above-mentioned technical scheme, the setting of arc surface has improved the fault-tolerant rate that the staff inserted the bolt in the second slot to reduce operating time, improved the ann of lid and torn open efficiency.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the protection to the well indoor facility is improved, the end part of the clamping block is inserted into the clamping groove, so that the movement of the cover body along the height direction of the cylinder body is limited, the cover body and the cylinder body are mutually fixed, the clamping structure of the clamping block and the clamping groove is hidden, and the possibility that a worker does not directly detach the cover body from the cylinder body is reduced;
2. the possibility that non-workers operate the rotating assembly is reduced, the first slot is shielded and hidden by the cover plate, the possibility that the non-workers find the first slot and operate by using a tool is reduced, and the possibility that sundries are accumulated in the first slot is also reduced;
3. the whole early warning performance is improved, the end part of the contact column is abutted on the pressure sensor, the wireless transmitter, the wireless receiver, the controller and the alarm work, and the worker at the far end is enabled to react through the warning sent by the alarm, so that the cover body is protected in time, and further the well chamber is protected.
Drawings
FIG. 1 is a schematic diagram of the overall construction of a well chamber of an embodiment of the present application;
fig. 2 is a schematic view of the overall structure of the safety device according to the embodiment of the present application;
FIG. 3 is a cross-sectional view embodying a clamping assembly;
FIG. 4 is a sectional view showing the internal structure of the cylinder;
FIG. 5 is an enlarged view of portion A of FIG. 4 showing the construction of the rotating assembly;
FIG. 6 is a sectional view showing the internal structure of the take-up reel;
FIG. 7 is a schematic diagram of a second slot.
Description of reference numerals: 1. a barrel; 11. a ring groove; 12. a card slot; 2. a cover body; 21. a hook groove; 22. a first through hole; 23. a groove; 231. a second slot; 3. a chucking mechanism; 31. a connecting arm; 32. a clamping block; 33. hinging a shaft; 34. an ear plate; 35. a torsion spring; 4. a drive mechanism; 41. a winding disc; 42. pulling a rope; 5. a rotating assembly; 51. rotating the rod; 52. a disc; 521. a first slot; 522. a second through hole; 53. a cover plate; 54. a spring; 6. a universal wheel; 7. a bolt; 71. a circular arc surface; 8. a base plate; 81. a wireless transmitter; 82. a pressure sensor; 9. against the posts.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses well room safety device. With reference to fig. 1 and 2, the safety device comprises a cylinder 1 of annular cross-section arranged above the well; the upper surface of the cylinder body 1 is provided with a ring groove 11 which is mutually communicated with the inner wall of the cylinder body 1; the embedded lid 2 that is used for sheltering from 1 top opening of barrel that is equipped with of annular 11, 2 cross sections of lid are circular, and two hook grooves 21 have been seted up to 2 upper surfaces of lid, and the axis of the relative lid 2 in two hook grooves 21 is central symmetry, makes the staff can hang tools such as hooks in hook groove 21, upwards stimulates lid 2 and makes lid 2 break away from in the annular 11, and then enters into the well indoor water route pipeline through barrel 1 and maintains. An annular clamping groove 12 is formed in the inner peripheral surface of the barrel 1, and the clamping groove 12 is formed adjacent to the annular groove 11; the lower surface of the cover body 2 is provided with a clamping mechanism 3 which is used in cooperation with the clamping groove 12 and used for fixing the cover body 2 and the barrel body 1, and the central position of the upper surface of the cover body 2 is provided with a driving mechanism 4 for driving the clamping mechanism 3 to operate.
Referring to fig. 3, the clamping mechanism 3 includes three connecting arms 31 vertically disposed on the lower surface of the cover 2, the connecting arms 31 are located near the edge of the cover 2, and the three connecting arms 31 are uniformly distributed around the axis of the cover 2; a clamping block 32 in clamping fit with the clamping groove 12 is fixedly connected to the end portion, away from the cover body 2, of the connecting arm 31, the clamping block 32 extends towards the direction away from the axis of the cover body 2, and the length direction of the clamping block 32 is perpendicular to the length direction of the connecting arm 31; one end of the connecting arm 31, which is far away from the fixture block 32, is provided with a hinge shaft 33 in a penetrating way, and the axis of the hinge shaft 33 is respectively vertical to the length direction of the fixture block 32 and the axis of the cover body 2; two ends of the hinge shaft 33 are respectively and rotatably connected with an ear plate 34, the ear plates 34 and the cover body 2 are mutually fixed, and the hinge shaft 33 can rotate around the axis of the hinge shaft 33 on the ear plates 34; and a torsion spring 35 which enables the fixture block 32 to rotate towards the direction deviating from the axis of the cover body 2 is respectively sleeved on the hinge shaft 33 between each ear plate 34 and the connecting arm 31, and two ends of the torsion spring 35 are respectively abutted against the cover body 2 and the connecting arm 31.
Referring to fig. 4 and 5, the driving mechanism 4 includes a winding disc 41 coaxially disposed with the cover 2, the winding disc 41 is located at the lower side of the cover 2 and is adjacent to the cover 2, a pulling rope 42 is disposed between the winding disc 41 and each latch 32, two ends of the pulling rope 42 are fixedly connected to the tail of the latch 32 and the outer peripheral surface of the winding disc 41, respectively, and when the pulling rope 42 is not wound, the length direction of the pulling rope 42 is perpendicular to the axial direction of the hinge shaft 33. In addition, the upper surface of the cover body 2 is provided with a groove 23 with a circular section, the groove 23 and the winding disc 41 are coaxially arranged, the bottom of the groove 23 is provided with a first through hole 22 coaxially arranged with the winding disc 41, and the first through hole 22 and the groove 23 are internally and jointly provided with a rotating assembly 5 for driving the winding disc 41 to rotate.
Referring to fig. 5 and 6, the rotating assembly 5 includes a rotating rod 51 inserted into the first through hole 22 and rotatably connected to the first through hole 22, an upper surface of the rotating rod 51 is flush with the bottom wall of the groove 23, and a bottom end of the rotating rod 51 is fixed to the upper surface of the winding tray 41; a disc 52 embedded in the groove 23 is coaxially and fixedly connected with the top of the rotating rod 51 and the rotating rod 51; the upper surface of the cover body 2 is kept flush, and the possibility that people trample the cover body 2 to damage the rotating assembly 5 is reduced. A first slot 521 for inserting a tool is formed in the upper surface of the disc 52, and the cross section of the first slot 521 is hexagonal; a cover plate 53 with the same size as the cross section of the first slot 521 is arranged in the first slot 521, a spring 54 is coaxially arranged between the cover plate 53 and the bottom of the first slot 521 and the disc 52, and two ends of the spring 54 are fixedly connected with the cover plate 53 and the bottom wall of the first slot 521 respectively; when the spring 54 is in a natural state, the upper surface of the cover plate 53 is flush with the upper surface of the disc 52, and the first slot 521 is hidden through the cover plate 53, so that not only is the accumulation of sundries in the first slot 521 reduced, but also the possibility that non-workers find the first slot 521 and use tools for operation is reduced, and the integral misoperation prevention of the safety device is improved.
When the cover body 2 is installed, a worker firstly uses a tool to align the cover plate 53 and pushes the cover plate 53 towards the bottom wall direction of the first slot 521, so that the spring 54 is elastically compressed, then the tool is rotated to rotate the disc 52, so that the rotating rod 51 and the winding disc 41 are driven to rotate, and then a part of the pulling rope 42 is wound on the outer circumferential surface of the winding disc 41, the fixture block 32 moves towards the winding disc 41 under the pulling action of the pulling rope 42, then the worker clamps the cover body 2 in the ring groove 11 and removes the limiting action on the disc 52, and then one end of the connecting arm 31, which is far away from the cover body 2, moves towards the adjacent fixture groove 12 under the elastic action of the torsion spring 35, so that the end of the fixture block 32 fixed with the corresponding connecting arm 31 is inserted into the fixture groove 12, so that the movement of the cover body 2 along the height direction of the barrel body 1 is limited; when the staff need to maintain the waterway pipeline in the cylinder 1, the cover body 2 can be opened and put on the nearby ground only by the reverse operation.
Referring to fig. 2, the lower surface of lid 2 still is fixed with three universal wheel 6, when fixture block 32 and draw-in groove 12 break away from each other, the straight-line distance that the farthest end perpendicular to lid 2 that universal wheel 6 deviates from lid 2 is greater than the straight-line distance that the farthest end perpendicular to lid 2 that fixture block 32 deviates from lid 2, make the staff when putting lid 2 subaerially, universal wheel 6 plays the supporting role to lid 2, the possibility that the chucking subassembly directly brought the damage with ground contact to the chucking subassembly has been reduced, improve the protection efficiency to the chucking subassembly, and the setting up of outside wheel makes the staff change and removes lid 2.
Referring to fig. 5 and 7, a plurality of second slots 231 are formed in the bottom wall of the groove 23, and the plurality of second slots 231 are uniformly distributed around the axis of the groove 23; the upper surface of the disc 52 is provided with a second through hole 522 matched with the second slot 231, when the winding disc 41 winds the pull rope 42 to enable the clamping block 32 and the winding disc 41 to be close to each other, the second through hole 522 is aligned with one of the second slots 231 and is commonly inserted with a bolt 7, an arc surface 71 is arranged on an edge of the end portion of the bolt 7, the arrangement of the arc surface 71 improves the fault tolerance rate of a worker inserting the bolt 7 into the second slot 231, so that the operation time is reduced, the free rotation of the disc 52 and the groove 23 is limited by the clamping of the bolt 7 and the second slot 231, the pull rope 42 wound on the winding disc 41 cannot be loosened again due to the free rotation of the winding disc 41, the worker can conveniently carry the cover body 2 to carry out the mounting and dismounting work on the cover body 2, and the maintenance efficiency of the water pipeline is improved.
Referring to fig. 6, the winding disc 41 has a cavity structure with an opening at the lower side, and a bottom plate 8 for shielding the cavity of the winding disc 41 is fixed at the end of the winding disc 41 away from the rotating rod 51 through a screw; a wireless transmitter 81 and a pressure sensor 82 are respectively arranged on the upper surface of the bottom plate 8, and the wireless transmitter 81 is electrically connected with the pressure sensor 82; a contact column 9 is fixedly connected to the lower side of the cover plate 53 perpendicular to the lower surface of the cover plate 53, and one end of the contact column 9 departing from the cover plate 53 penetrates into the cavity of the take-up reel 41 and is connected with the rotating rod 51 in a sliding manner; when non-staff uses the instrument to dwang 51 direction promotion apron 53, the tip of conflict post 9 will be contradicted on pressure sensor 82, make wireless transmitter 81 with pressure signal wireless transmission to controller that pressure sensor 82 sensed, the increase of the pressure sensing signal that the controller received, and trigger the alarm and report to the police, the warning that the messenger is located the staff of distal end and sends through the alarm is reacted, thereby timely protects lid 2, further reduction lid 2 is by the possibility that non-staff's mistake was opened, the improvement is to the protection of well room.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A well chamber safety device, characterized by: comprises a cylinder body (1), the top of the cylinder body (1) is provided with an annular groove (11) which is communicated with the inner wall of the cylinder body (1), a cover body (2) which is used for shielding the cylinder body (1) is embedded in the annular groove (11), the inner wall of the cylinder body (1) is provided with an annular clamping groove (12), one side of the cover body (2) facing a well chamber is provided with a plurality of connecting arms (31), one end of each connecting arm (31) is rotatably connected with the lower surface of the cover body (2), the end part of each connecting arm (31) departing from the cover body (2) is fixedly connected with a clamping block (32) which is mutually clamped with the clamping groove (12), the lower surface of the cover body (2) is provided with a torsion spring (35) which enables the clamping block (32) to rotate towards the direction of the clamping groove (12), the lower surface of the cover body (2) is rotatably connected with a winding disc (41), a pull rope (42) is arranged between the winding disc (41) and each, the cover body (2) is provided with a rotating assembly (5) which is used for driving the winding disc (41) to rotate so as to enable the clamping block (32) to be separated from the clamping groove (12).
2. A well chamber safety device as claimed in claim 1, wherein: a first through-hole (22) has been seted up to lid (2) upper surface, runner assembly (5) including insert in first through-hole (22) and with first through-hole (22) rotate dwang (51) of being connected, the bottom of dwang (51) and the upper surface reciprocal anchorage of rolling dish (41), the top rigid coupling of dwang (51) has a disc (52).
3. A well chamber safety device as claimed in claim 2, wherein: the upper surface of the cover body (2) is provided with a groove (23) for accommodating the disc (52) to be embedded, and the upper surface of the disc (52) is provided with a first slot (521) for inserting a tool and driving the disc (52) to rotate.
4. A well chamber safety device as claimed in claim 3, wherein: a plurality of second slots (231) are formed in the bottom wall of the groove (23), the second slots (231) are evenly distributed around the center line of the rotating rod (51), a second through hole (522) matched with the second slots (231) is formed in the upper surface of the disc (52), and when the winding disc (41) winds the pull rope (42) to separate the clamping block (32) from the clamping groove (12), the second through hole (522) is aligned with one of the second slots (231) and a bolt (7) is inserted together.
5. A well chamber safety device as claimed in claim 3, wherein: the top of the first slot (521) is provided with a cover plate (53) with the cross section equal to that of the first slot (521), a spring (54) is arranged between the cover plate (53) and the bottom of the first slot (521), two ends of the spring (54) are fixedly connected with the cover plate (53) and the bottom wall of the first slot (521), and when the spring (54) is in a natural state, the upper surface of the cover plate (53) is flush with the upper surface of the disc (52).
6. A well chamber safety device according to claim 5, wherein: rolling dish (41) are the cavity structure, the vertical rigid coupling of lower surface of apron (53) has one to touch post (9), and the tank bottom and dwang (51) that first slot (521) was passed in touch post (9) one end that deviates from apron (53) enter into to take up reel (41) cavity in, installed wireless transmitter (81) and pressure sensor (82) in the cavity of rolling dish (41), and wireless transmitter (81) and pressure sensor (82) electricity are connected, when promoting apron (53) to dwang (51) direction, the tip of touching post (9) triggers pressure sensor (82).
7. A well chamber safety device as claimed in claim 1, wherein: and a plurality of universal wheels (6) for limiting the contact of the winding disc (41) and the surrounding environment are fixed on the lower surface of the cover body (2).
8. A well chamber safety device according to claim 4, wherein: an arc surface (71) is arranged on the edge of the end part of the bolt (7).
CN202022425541.2U 2020-10-27 2020-10-27 Well chamber safety device Active CN213709793U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022425541.2U CN213709793U (en) 2020-10-27 2020-10-27 Well chamber safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022425541.2U CN213709793U (en) 2020-10-27 2020-10-27 Well chamber safety device

Publications (1)

Publication Number Publication Date
CN213709793U true CN213709793U (en) 2021-07-16

Family

ID=76800740

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022425541.2U Active CN213709793U (en) 2020-10-27 2020-10-27 Well chamber safety device

Country Status (1)

Country Link
CN (1) CN213709793U (en)

Similar Documents

Publication Publication Date Title
CN213709793U (en) Well chamber safety device
CN205576976U (en) General well lid of three proofings
CN114062747B (en) Ammeter with dampproofing theftproof function
CN211322551U (en) Pet traction device
CN213812481U (en) Underground water level monitoring device with good waterproofness
CN215558097U (en) Cable reel of high security
CN212521622U (en) Convenient window cleaning machine safety rope fastener
CN204653182U (en) The antitheft spacing emergency stop device of greenhouse curtain-rolling security protection
CN209571651U (en) Intelligent energy-saving electric appliance
CN110226579B (en) Vehicle-mounted tree liquid medicine spraying equipment for ecological environment construction
CN112093328A (en) Automatic garbage bin cover of control
CN112311924A (en) Intelligent interphone for security, sound insulation and anti-theft door
CN208629348U (en) A kind of building construction nail extracting device
CN218731817U (en) Intelligent grounding wire for preventing mistaken installation of power transmission line
CN112374407A (en) Auxiliary hoisting tool for electric power construction
CN104775743B (en) Outdoor unit resistance meeting stop device for rolling gate
CN210087626U (en) A installation mechanism for submerged motor pump
CN220171555U (en) Anti-disassembly's location tablet
CN220534182U (en) Broken tool case of tearing open of cooperation smoke detector
CN217676167U (en) Elastic reel positioning structure
CN214252383U (en) Intelligent state display grounding wire
CN216843040U (en) Aquaculture rotary drum device of hoist and mount type
CN216927747U (en) Novel fire alarm for transformer substation
CN212745606U (en) CAN bus control device for detection and early warning
CN217002159U (en) Fan blade monitor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant