CN218093028U - Upper and lower matching device for vertical shaft of pipe gallery - Google Patents

Upper and lower matching device for vertical shaft of pipe gallery Download PDF

Info

Publication number
CN218093028U
CN218093028U CN202222751393.2U CN202222751393U CN218093028U CN 218093028 U CN218093028 U CN 218093028U CN 202222751393 U CN202222751393 U CN 202222751393U CN 218093028 U CN218093028 U CN 218093028U
Authority
CN
China
Prior art keywords
ladder
rotary
shaft
existing
fixing rod
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
CN202222751393.2U
Other languages
Chinese (zh)
Inventor
郑长帅
张垚
王波
张小兵
陈柳
胡科
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.)
China Railway Construction Group Rongsheng Chengdu Tianfu New Area Investment Co ltd
Original Assignee
China Railway Construction Group Rongsheng Chengdu Tianfu New Area Investment 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 China Railway Construction Group Rongsheng Chengdu Tianfu New Area Investment Co ltd filed Critical China Railway Construction Group Rongsheng Chengdu Tianfu New Area Investment Co ltd
Priority to CN202222751393.2U priority Critical patent/CN218093028U/en
Application granted granted Critical
Publication of CN218093028U publication Critical patent/CN218093028U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Ladders (AREA)

Abstract

The utility model discloses an upper and lower cooperation device of piping lane shaft relates to piping lane technical field, and the personnel of can being convenient for go up the piping lane shaft, risk when avoiding personnel to hold the shaft about the mode at well head edge through hand. The crawling ladder comprises a rotating crawling ladder arranged at a well mouth, wherein a first end of the rotating crawling ladder is rotatably connected to the top end of an existing crawling ladder in the well mouth, and a second end of the rotating crawling ladder can be in a use state and a storage state through rotation; the rotary crawling ladder in the storage state is positioned in the vertical shaft; the rotary crawling ladder in a use state is arranged outside the vertical shaft and is matched with the existing crawling ladder to form an integral crawling ladder; the fixed assembly is arranged between the rotary crawling ladder and the existing crawling ladder and used for fixing the rotary crawling ladder in a use state. The utility model discloses can make the last piping lane shaft that personnel can relax through the cooperation of rotating the cat ladder and existing cat ladder to rotate the cat ladder and put down and accomodate in the shaft.

Description

Upper and lower matching device of pipe gallery shaft
Technical Field
The utility model relates to a piping lane technical field, concretely relates to upper and lower cooperation device of piping lane shaft.
Background
For the operation maintenance of making things convenient for the piping lane, be equipped with the shaft on a plurality of intercommunication ground on the piping lane, be equipped with the cat ladder that supplies personnel from top to bottom in the shaft, and the well head coats and is stamped the well lid, wherein pure armrest grabs the well head edge or leans on palm and ground frictional force when personnel go up the piping lane, does not have fixed stress point, and is inconvenient from top to bottom, and appears under the damaged not hard up condition when the peripheral concrete of well head, very easily leads to personnel to fall, causes the casualties.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides an auxiliary device, the pipe gallery shaft about can being convenient for personnel, the risk when avoiding personnel to hold the shaft about the mode at well head edge through hand.
The utility model discloses a following technical scheme realizes:
the vertical matching device for the vertical shaft of the pipe gallery comprises a rotary ladder stand arranged at the position of the vertical shaft, wherein the first end of the rotary ladder stand is rotatably connected to the top end of an existing ladder stand in the vertical shaft, and the second end of the rotary ladder stand can enable the rotary ladder stand to be in a use state and a storage state through rotation;
the rotary crawling ladder in the storage state is positioned in the vertical shaft; the rotary crawling ladder in a use state is arranged outside the vertical shaft and is matched with the existing crawling ladder to form an integral crawling ladder;
a fixing component is arranged between the rotary crawling ladder and the existing crawling ladder and used for fixing the rotary crawling ladder in a use state.
Optionally, the fixing assembly includes two sliding sleeve bodies and two matching sleeve bodies, the two sliding sleeve bodies are respectively disposed on two sides of the rotary ladder stand, a fixing rod is disposed in the sliding sleeve body, and the fixing rod can slide in the sliding sleeve body along the length direction of the rotary ladder stand; the two matching sleeves are respectively arranged on two sides of the existing ladder stand, when the rotary ladder stand is in a use state, the first end of the fixed rod can fall into the matching sleeve on the corresponding side, and the second end of the fixed rod is located in the sliding sleeve.
Further optionally, an opening is formed in the sliding sleeve body along the length direction of the rotary crawling ladder, and a placing groove is formed in the side edge of the second end of the opening;
an operating plate penetrating out of the opening is arranged at the second end of the fixed rod and can slide in the opening, and when the operating plate abuts against the first end of the opening, the first end of the fixed rod can fall into the matching sleeve body on the corresponding side; when the operating panel is abutted against the second end of the opening, the fixed rod can enable the operating panel to be located in the placing groove through rotation, and the first end of the fixed rod is located outside the matching sleeve body.
Further optionally, the fixing rod is of a cylindrical structure, the sliding sleeve body and the matching sleeve body are respectively provided with a cylindrical inner cavity, and the inner diameter of the cylindrical inner cavity is matched with the outer diameter of the fixing rod.
Optionally, the two sliding sleeve bodies are respectively used as two side ladder frames of the rotary ladder stand, and the plurality of rungs of the rotary ladder stand are arranged between the two sliding sleeve bodies.
Optionally, the second end of the rotary ladder stand in the storage state abuts against one side, far away from the existing ladder stand, of the wellhead.
Optionally, an elastic element is arranged on the rotary crawling ladder and used for applying a pushing force or a pulling force which rotates from a storage state to a use state to the rotary crawling ladder.
Further optionally, the elastic element comprises two springs, one ends of the two springs are respectively fixed to two sides of the rotary crawling ladder, and the other ends of the two springs are fixed to the side wall, on one side, of the well mouth, of the existing crawling ladder.
Further optionally, a locking piece is arranged on one side, far away from the existing crawling ladder, of the wellhead, and the locking piece is used for fixing the second end of the rotary crawling ladder when the second end of the rotary crawling ladder abuts against one side, far away from the existing crawling ladder, of the wellhead.
Optionally, the locking piece includes a bolt hole arranged on one side of the wellhead away from the existing crawling ladder and a bolt adapted to the bolt hole, the second end of the rotary crawling ladder is provided with a connecting plate, a through hole is formed in the connecting plate, and in the storage state, the through hole is overlapped on the bolt hole and can be fixed through the bolt.
The utility model discloses have following advantage and beneficial effect:
the utility model provides a pair of upper and lower cooperation device of piping lane shaft through the cooperation of rotating cat ladder and existing cat ladder, can make to rotate the vertical setting of cat ladder outside the shaft under the user state to will through fixed subassembly rotate cat ladder and existing cat ladder and fix, rotate the cat ladder and expose outside ground this moment, the personnel can be through controlling the light going on from top to bottom in the shaft that rotates the cat ladder. And can put down the rotation cat ladder and get into the state of accomodating in the shaft, be convenient for place the well lid and seal on the well head after using the shaft.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is an overall schematic view of embodiment 1 of the present invention;
fig. 2 is an overall sectional view of the embodiment 1 of the present invention in the storage state;
fig. 3 is an overall sectional view of the embodiment 1 of the present invention in a use state;
fig. 4 is a schematic view of the sliding sleeve body and the fixing rod in the storage state according to embodiment 1 of the present invention;
fig. 5 is a schematic view of the sliding sleeve body and the fixing rod in a use state according to embodiment 1 of the present invention.
Reference numbers and corresponding part names in the figures:
1-vertical shaft, 11-bolt hole, 2-existing ladder stand, 21-matching sleeve body, 3-rotary ladder stand, 31-sliding sleeve body, 311-opening, 312-placing groove, 32-fixing rod, 321-operating plate, 33-connecting plate, 4-spring and 5-bolt.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example" or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or examples are included in at least one embodiment of the invention. Thus, the appearances of the phrase "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.
Example 1:
an up-down matching device of a pipe gallery shaft is shown in figures 1 to 3 and comprises a rotary ladder stand 3 arranged at the position of the shaft, wherein a first end of the rotary ladder stand 3 is rotatably connected to the top end of an existing ladder stand 2 in the shaft 1, and a second end of the rotary ladder stand 3 can be in a use state and a storage state through rotation;
as shown in fig. 2, the rotary ladder stand 3 in a storage state is positioned in the shaft 1; as shown in fig. 3, the rotary ladder stand 3 in use is vertically arranged outside the vertical shaft 1 and is matched with the existing ladder stand 2 to form an integral ladder stand;
a fixing component is arranged between the rotary crawling ladder 3 and the existing crawling ladder 2 and used for fixing the rotary crawling ladder 3 in a using state.
The first end is one end of each part close to the existing ladder stand 2, and the second end is one end of each part far away from the existing ladder stand 2.
At needs business turn over piping lane, move the well lid on the shaft 1, will rotate 3 lifts of cat ladder and make its vertical setting outside shaft 1, get into user state to will through fixed subassembly rotate cat ladder 3 and existing cat ladder 2 and fix, rotate cat ladder 3 this moment and expose outside the ground, personnel can be through controlling the business turn over well head that rotates 3 light of cat ladder, and go on from top to bottom in shaft 1 through rotating the whole cat ladder that cat ladder 3 and existing cat ladder 2 constitute.
And when not needing shaft 1, put down to shaft 1 in with rotation cat ladder 3 and get into the state of accomodating, be convenient for place the well lid and seal on the well head.
At the moment, through the arrangement of the rotary crawling ladder 3, a supporting point is provided for personnel to enter and exit the vertical shaft 1, and the personnel can safely pass through the vertical shaft. And place in shaft 1 when not using, practice thrift the space, make the well lid can normally seal shaft 1. And the device is suitable for any shaft 1 well opening which can not be provided with a permanent handrail, and has good adaptability.
In one or more embodiments, the fixing assembly includes two sliding sleeves 31 and two matching sleeves 21, the two sliding sleeves 31 are respectively arranged at two sides of the rotary ladder stand 3, a fixing rod 32 is arranged in the sliding sleeve 31, and the fixing rod 32 can slide in the sliding sleeve 31 along the length direction of the rotary ladder stand 3; the two matching sleeves 21 are respectively arranged at two sides of the existing ladder stand 2, when the rotary ladder stand 3 is in a use state, as shown in fig. 3 and 5, a first end of the fixing rod 32 can fall into the matching sleeve 21 at the corresponding side, and a second end of the fixing rod 32 is positioned in the sliding sleeve 31. At this time, the fixing rod 32 is simultaneously positioned in the matching sleeve body 21 and the sliding sleeve body 31, the effect of preventing the rotation of the rotary ladder stand 3 is realized by the restriction of the fixing rod 32 on the matching sleeve body 21 and the sliding sleeve body 31 of the rotary ladder stand 3 and the existing ladder stand 2, and the relative fixation of the rotary ladder stand 3 and the existing ladder stand 2 is realized.
On the basis, in order to rotate the rotary ladder stand 3 from the use state to the storage state again, an opening 311 is arranged on the sliding sleeve body 31 along the length direction of the rotary ladder stand 3, and a placing groove 312 is arranged at the second end side edge of the opening 311;
an operating plate 321 which penetrates out of the opening 311 is arranged at the second end of the fixing rod 32, the operating plate 321 can slide in the opening 311, a person can move the operating plate 321 and the fixing rod 32 along the direction of the opening 311 by holding the part of the operating plate 321 exposed out of the opening 311, when the operating plate 321 is abutted against the first end of the opening 311, as shown in fig. 5, the first end of the fixing rod 32 can move to the outside of the sliding sleeve body 31 and fall into the matching sleeve body 21 at the corresponding side, and the second end of the fixing rod 32 is positioned in the sliding sleeve body 31 at the moment, so that the fixing of the rotary climbing rod and the existing climbing rod is realized; when the operation board 321 abuts against the second end of the opening 311, the fixing rod 32 can be located in the placing groove 312 by rotating the operation board 321 as shown in fig. 4, at this time, the operation board 321 is located in the placing groove 312 and is relatively fixed, so that the fixing rod 32 is prevented from dropping under the influence of gravity, at this time, the first end of the fixing rod 32 is located outside the fitting sleeve body 21, the fixing rod 32 no longer limits the movement of the fitting sleeve body 21 and the sliding sleeve body 31, and at this time, the rotating climbing rod can rotate freely.
The fixing rod 32 is a cylindrical structure, the sliding sleeve 31 and the fitting sleeve 21 are respectively provided with a cylindrical inner cavity, the inner diameter of the cylindrical inner cavity is matched with the outer diameter of the fixing rod 32, namely, only an assembly gap which is convenient for the fixing rod 32 to slide and rotate is reserved between the cylindrical inner cavity and the fixing rod 32, and the gap can be only several millimeters.
Therefore, when the two ends of the fixing rod 32 are respectively located in the cylindrical inner cavities of the sliding sleeve body 31 and the matching sleeve body 21, the sliding sleeve body 31 is limited by the fixing rod 32 and cannot swing to a large extent, so that the rotary ladder stand 3 is ensured to be stable enough in a use state, and excessive shaking generated in the use process is avoided.
The two sliding sleeves 31 can be used as two side ladder frames of the rotating ladder stand 3, respectively, and a plurality of rungs of the rotating ladder stand 3 are arranged between the two sliding sleeves 31. At this time, the fixing rod 32 is arranged in the rotary ladder stand 3, so that the sliding sleeve body 31 does not need to be additionally arranged, the weight of the rotary ladder stand 3 is reduced, and the use of the rotary ladder stand 3 is convenient.
On the basis, the top ends of the ladder frames on the two sides of the existing ladder stand 2 can also be respectively used as the matching sleeve bodies 21, so that the matching sleeve bodies are aligned with and matched with the sliding sleeve bodies 31.
In addition, the two sliding sleeves 31 can also be additionally arranged on the two sides of the rotary ladder stand 3.
In one or more embodiments the second end of the swivel ladder 3 in the stowed condition abuts against the side of the wellhead remote from the existing ladder 2. At this moment, be in the rotation cat ladder 3 of accomodating the state and keep flat on the well head, the user can rotate whole rotation cat ladder 3 to the user state through the second end that lifts up rotation cat ladder 3, convenient to use, and simultaneously, rotation cat ladder 3 under the accomodating the state can play certain guard action to the well head, avoids personnel to follow the well head to a certain extent and drops down, causes the casualties.
In one or more embodiments, the ladder 3 is provided with an elastic element which is used for applying a pushing force or a pulling force to the ladder 3 from a storage state to a use state.
At this time, the raising of the swivel ladder 3 can be facilitated by the elastic member. When the pushing force or the pulling force applied by the elastic element is large, the rotating crawling ladder 3 can be directly lifted to a using state, a user does not need to apply force to the rotating crawling ladder 3, and the using convenience of the rotating crawling ladder 3 is improved; when the pushing force or the pulling force applied by the elastic element is small, the second end of the rotating ladder stand 3 can be lifted to a certain height, so that a user can conveniently pull up the rotating ladder stand 3 to a use state at a safe position such as two sides of the rotating ladder stand 3 and one side provided with the existing ladder stand 2, the pulling force required to be applied by the user can be reduced by the acting force of the elastic element, the situation that the user is inclined downwards by the reacting force when pulling up the rotating ladder stand 3 is avoided to a certain extent, and the safety of lifting up the rotating ladder stand 3 is improved.
However, considering that the subsequent ladder rotary ladder 3 is still rotated to the storage state, generally, the pushing force or the pulling force applied by the elastic element is selected to be small, and at this time, the ladder rotary ladder 3 which is separated from the use state is only lifted to a certain height by pulling the elastic element, so that the user can push the ladder rotary ladder 3 to the storage state with a small force and a relaxed posture.
The elastic element comprises two springs 4, one ends of the two springs 4 are respectively fixed on two sides of the rotary crawling ladder 3, and the other ends of the two springs 4 are fixed on the side wall, on one side, of the well mouth, of the existing crawling ladder 2. The spring 4 now exerts an upward rotating pulling force on the rotating ladder 3.
On the basis, a locking piece is arranged on one side, far away from the existing crawling ladder 2, of the wellhead, and the locking piece is used for fixing the second end of the rotary crawling ladder 3 when the second end of the rotary crawling ladder 3 abuts against one side, far away from the existing crawling ladder 2, of the wellhead.
Make from this to rotate cat ladder 3 and keep flat all the time in well head department when accomodating the state, both avoided rotating cat ladder 3 and lead to its whole to get into in the well head through rotating, lead to follow-up difficult being pulled out with rotating cat ladder 3, avoided rotating cat ladder 3 to lift under elastic element's effect again, even with the well lid jack-up on the well head, lead to the well lid to seal not tight, influence the normal use of this department road and the security in the use.
The locking piece comprises a bolt hole 11 arranged on one side of the wellhead far away from the existing crawling ladder 2 and a bolt 5 matched with the bolt hole 11, a connecting plate 33 is arranged at the second end of the rotary crawling ladder 3, a through hole is formed in the connecting plate 33, and in a storage state, the rotary crawling ladder 3 can be rotated to enable the through hole to be overlapped on the bolt hole 11 and can be fixed through the bolt 5.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The vertical matching device for the vertical shaft of the pipe gallery is characterized by comprising a rotary ladder stand (3) arranged at the position of the vertical shaft, wherein the first end of the rotary ladder stand (3) is rotatably connected to the top end of an existing ladder stand (2) in the vertical shaft (1), and the second end of the rotary ladder stand (3) can be in a use state and a storage state through rotation;
wherein the rotary crawling ladder (3) in the storage state is positioned in the vertical shaft (1); the rotary crawling ladder (3) in a use state is arranged outside the vertical shaft (1) and is matched with the existing crawling ladder (2) to form an integral crawling ladder;
a fixing component is arranged between the rotary crawling ladder (3) and the existing crawling ladder (2), and the fixing component is used for fixing the rotary crawling ladder (3) in a use state.
2. The vertical matching device for a pipe gallery shaft according to claim 1, wherein the fixing component comprises two sliding sleeves (31) and two matching sleeves (21), the two sliding sleeves (31) are respectively arranged at two sides of the rotary ladder stand (3), a fixing rod (32) is arranged in each sliding sleeve (31), and the fixing rod (32) can slide in the sliding sleeves (31) along the length direction of the rotary ladder stand (3); the two matching sleeves (21) are respectively arranged on two sides of the existing ladder stand (2), when the rotary ladder stand (3) is in a use state, the first end of the fixing rod (32) can fall into the matching sleeve (21) on the corresponding side, and the second end of the fixing rod (32) is arranged in the sliding sleeve (31).
3. The vertical matching device for the pipe gallery shaft according to claim 2, wherein the sliding sleeve body (31) is provided with an opening (311) along the length direction of the rotary ladder (3), and the side edge of the second end of the opening (311) is provided with a placing groove (312);
an operating plate (321) penetrating out of the opening (311) is arranged at the second end of the fixing rod (32), the operating plate (321) can slide in the opening (311), and when the operating plate (321) abuts against the first end of the opening (311), the first end of the fixing rod (32) can fall into a matching sleeve body (21) on the corresponding side; when the operating plate (321) abuts against the second end of the opening (311), the fixing rod (32) can enable the operating plate (321) to be located in the placing groove (312) through rotation, and the first end of the fixing rod (32) is located outside the matching sleeve body (21).
4. Device according to claim 3, characterized in that the fixing rod (32) is a cylindrical structure, the sliding sleeve (31) and the fitting sleeve (21) each have a cylindrical inner cavity, the inner diameter of the cylindrical inner cavity is adapted to the outer diameter of the fixing rod (32).
5. Device according to claim 2, characterized in that the two sliding sleeves (31) are used as the ladder frames on both sides of the rotating ladder (3), and that the rungs of the rotating ladder (3) are arranged between the two sliding sleeves (31).
6. Device for co-ordinating a pipe gallery shaft as claimed in claim 1, wherein the second end of the ladder (3) in the stowed position abuts against the side of the well head remote from the existing ladder (2).
7. Fitting arrangement for a pipe gallery shaft according to claim 1, characterized in that the ladder (3) is provided with elastic elements for exerting a pushing or pulling force on the ladder (3) which is turned from the retracted state to the active state.
8. Device for vertical co-operation of a pipe corridor shaft according to claim 7, characterised in that the resilient element comprises two springs (4), one end of each of which (4) is fixed to each side of the rotating ladder (3) and the other end to the side wall of the well head where the existing ladder (2) is located.
9. Device for co-ordinating a pipe gallery shaft as claimed in any of claims 6-8, wherein the well head on the side remote from the existing ladder (2) is provided with a locking member for securing the second end of the rotating ladder (3) when the second end of the rotating ladder (3) abuts against the well head on the side remote from the existing ladder (2).
10. Device according to claim 9, characterized in that the locking element comprises a bolt hole (11) arranged on the side of the shaft remote from the existing ladder (2) and a bolt (5) adapted to the bolt hole (11), that the second end of the rotating ladder (3) is provided with a connecting plate (33), that the connecting plate (33) is provided with a through hole, which in the stowed position overlaps the bolt hole (11) and can be fixed by means of the bolt (5).
CN202222751393.2U 2022-10-19 2022-10-19 Upper and lower matching device for vertical shaft of pipe gallery Active CN218093028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222751393.2U CN218093028U (en) 2022-10-19 2022-10-19 Upper and lower matching device for vertical shaft of pipe gallery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222751393.2U CN218093028U (en) 2022-10-19 2022-10-19 Upper and lower matching device for vertical shaft of pipe gallery

Publications (1)

Publication Number Publication Date
CN218093028U true CN218093028U (en) 2022-12-20

Family

ID=84458183

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222751393.2U Active CN218093028U (en) 2022-10-19 2022-10-19 Upper and lower matching device for vertical shaft of pipe gallery

Country Status (1)

Country Link
CN (1) CN218093028U (en)

Similar Documents

Publication Publication Date Title
ES2338296T3 (en) LOCK DEVICE FOR AN ASCENT PROTECTION SYSTEM.
WO2016060402A1 (en) Caster and white board comprising caster
US11019910B2 (en) Perspective adjustable viewing apparatus with base suction device for locking to surfaces
CN218093028U (en) Upper and lower matching device for vertical shaft of pipe gallery
KR101495743B1 (en) Folding Grab-Bar
CN217430688U (en) Self-descending escape device for high-rise building
CN215993508U (en) Lifting structure of mirror surface and mirror
CN210114387U (en) Vertical closestool wall handrail
CN211342730U (en) Simple ladder
CN218881883U (en) Novel annular gravity locking device for protective door of construction elevator
CN207970202U (en) A kind of folding wheel chair and its locking device
CN220377806U (en) Building scaffold for building engineering
CN218240136U (en) Anti-falling structure of probe chuck fixing plate switch
CN110270019A (en) A kind of high-rise building escape device
CN211065761U (en) Door handle assembly for furniture
CN212233818U (en) Hydraulic device for bed elevator and bed elevator
CN218114901U (en) House building is with stabilizing effectual elevating gear
CN218577617U (en) Boarding ladder with foldable handrails
CN213478183U (en) Safe and reliable's construction ladder
CN220135134U (en) Support foot rest with center shaft
CN115959544A (en) Corridor walking-replacing device
CN215169259U (en) Escape door for multi-layer temporary-built board room
CN216190923U (en) Elevator with spring closing door mechanism
CN213588759U (en) Stretcher with isolation mask
CN214365391U (en) Construction site isolating device for building safety management

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant