CN114920105A - Protection structure for lift shaft in building construction - Google Patents
Protection structure for lift shaft in building construction Download PDFInfo
- Publication number
- CN114920105A CN114920105A CN202210661315.5A CN202210661315A CN114920105A CN 114920105 A CN114920105 A CN 114920105A CN 202210661315 A CN202210661315 A CN 202210661315A CN 114920105 A CN114920105 A CN 114920105A
- Authority
- CN
- China
- Prior art keywords
- frame
- buffer
- intercepting
- building construction
- conduction
- 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.)
- Granted
Links
- 238000009435 building construction Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000006378 damage Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- -1 chains Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3266—Safety nets
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to the technical field of construction protection, and discloses a protection structure for a building construction elevator shaft. The device comprises an interception frame and a buffer frame, wherein the buffer frame is positioned below the interception frame, the interception frame comprises conduction frames which are oppositely arranged at two sides of the interception frame, and an interception piece is connected between two corresponding conduction frames through a limiting piece; the buffer frame comprises a fixed plate, the fixed plate is arranged right below the conduction frame, and a buffer assembly is arranged between the fixed plate and the conduction frame. Through the buffer assembly between fixed plate and the conduction frame for the device can be alleviated the impact force that it produced effectively when intercepting personnel or object through the interception frame, reduces the injury that the device caused to personnel when intercepting, also reduces the impact that the object caused the device. According to the invention, the spacing part is in sliding fit with the conduction frame, and the position of the spacing part is fixed by the positioning part, so that the spacing and the position of the interception part can be adjusted according to the use requirement, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of construction protection, in particular to a protection structure for a building construction elevator shaft.
Background
The building construction elevator well has no safety protection measures during initial construction, and in order to ensure the safety of constructors, protective guards need to be installed at an elevator entrance or a deep well, so that construction accidents are avoided; however, in some existing elevator shaft protection structures, people or objects falling in an elevator shaft are intercepted through an intercepting net or an intercepting bar, but impact force caused by the intercepted people is not relieved, so that when the elevator shaft protection structures intercept people falling in the elevator shaft, the falling people are injured due to the impact force; on the other hand, the number, the spacing and the positions of the intercepting strips are difficult to adjust, so that the adaptability is poor.
Disclosure of Invention
The invention solves the technical problem of providing a protection structure of a building construction elevator shaft, which improves the safety and reduces the impact force caused by falling.
The technical scheme adopted by the invention for solving the technical problem is as follows: the protective structure for the lift shaft in building construction comprises an intercepting frame and a buffer frame, wherein the buffer frame is positioned below the intercepting frame, the intercepting frame comprises conduction frames which are oppositely arranged on two sides of the intercepting frame, and an intercepting piece is connected between the two corresponding conduction frames through a limiting piece; the buffer frame comprises a fixed plate, the fixed plate is arranged right below the guide frame, and a buffer assembly is arranged between the fixed plate and the guide frame.
Further, the method comprises the following steps: the buffer assembly comprises a first buffer assembly and a second buffer assembly, the first buffer assembly is arranged between the two ends of the transmission frame and the fixing plate on the same side, and the second buffer assembly is arranged between the first buffer assemblies at the two ends of the transmission frame.
Further, the method comprises the following steps: the first buffer assembly comprises a guide rod and a first force unloading spring, the guide rod is fixedly connected below the end part of the conduction frame and vertically arranged, and the bottom end of the guide rod penetrates through the fixed plate and is fixedly provided with a stop part; the guide rod is connected with the fixed plate in a sliding mode, and the outer sides of the guide rods between the conduction frame and the fixed plate are respectively sleeved with a first force unloading spring.
Further, the method comprises the following steps: the buffer assembly II comprises a lower fixed seat, an upper fixed seat, a conducting plate and a second unloading spring, the lower fixed seat is fixed with the fixed plate, the upper fixed seat is fixed with the conducting frame, the lower fixed seat and the upper fixed seat are correspondingly arranged, a telescopic rod is fixedly arranged between the lower fixed seat and the upper fixed seat, and the second unloading spring is sleeved on the outer side of the telescopic rod.
Further, the method comprises the following steps: the periphery of the middle of the telescopic rod is fixedly connected with a conduction plate, and the peripheries of the telescopic rods on the upper side and the lower side of the conduction plate are sleeved with a second force unloading spring.
Further, the method comprises the following steps: the limiting part is connected with the conduction frame in a sliding mode, and the limiting part fixing device further comprises a positioning part used for fixing the limiting part on the conduction frame.
Further, the method comprises the following steps: the transmission frame is provided with a limiting sliding groove along the length direction, the limiting part comprises a connecting sliding block, and the connecting sliding block is connected with the transmission frame in a sliding mode through the limiting sliding groove; the connecting slide block is in threaded connection with a fixing bolt, the transmission frame is evenly provided with a plurality of positioning screw holes at intervals along the length direction of the limiting sliding groove of the transmission frame, and the lower end of the fixing bolt penetrates through the connecting slide block and is in threaded connection with the positioning screw holes.
Further, the method comprises the following steps: the limiting sliding groove is a dovetail groove.
Further, the method comprises the following steps: the interception piece adopts a reticular chain, a rubber strip or a hoisting belt.
Further, the method comprises the following steps: mounting plates are welded at two ends of the fixing plate.
The beneficial effects of the invention are:
1. according to the invention, through the buffer assembly between the fixing plate and the transmission frame, when the device intercepts personnel or objects through the intercepting frame, the impact force generated by the device can be effectively relieved, the injury to the personnel during the intercepting of the device is reduced, and the impact of the objects on the device is also reduced.
2. According to the invention, the spacing part is in sliding fit with the conduction frame, and the position of the spacing part is fixed by the positioning part, so that the spacing and the position of the interception part can be adjusted according to the use requirement, and the operation is convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic view of a connection structure of a transmission frame and an interception member;
FIG. 4 is a schematic structural view of a cushion assembly;
labeled as: 1. a conductive frame; 2. an interception member; 3. a fixing plate; 4. a first buffer component; 5. a second buffer component; 6. connecting the sliding block; 7. fixing the bolt; 8. positioning the screw hole; 9. a limiting chute; 10. a guide bar; 11. a first force-releasing spring; 12. a lower fixed seat; 13. an upper fixed seat; 14. a conductive plate; 15. and a second force-releasing spring.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally used to place products of the present invention, or orientations or positional relationships that are conventionally understood by those skilled in the art, and such terms are used for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "two," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance. In this context, "parallel," "perpendicular," and the like are not strictly mathematical and/or geometric limitations, but also encompass tolerances as would be understood by one skilled in the art and permitted by fabrication or use.
The invention is further described with reference to the following figures and detailed description.
Referring to fig. 1-4, the invention relates to a protective structure for a hoistway of a building construction elevator, which comprises an intercepting frame and a buffer frame, wherein the intercepting frame comprises a transmission frame 1 and an intercepting piece 2, the transmission frame 1 is in a strip plate shape, the intercepting piece 2 is connected between the transmission frames 1 through a limiting piece, the intercepting effect on the hoistway is realized through the intercepting piece 2, the intercepting piece 2 can be made of materials such as chains, rubber strips or hoisting belts, and preferably, a plurality of intercepting pieces 2 are combined to form a net structure; when the intercepting piece 2 adopts a chain, the firmness and the intercepting effect of the intercepting piece 2 are high; when the interception piece 2 adopts a rubber strip, the interception piece 2 has better elasticity, and the impact force caused by intercepting personnel or objects is reduced; when the intercepting part 2 adopts the hoisting belt, the damage of the intercepting part 2 to the personnel during intercepting is reduced, and the strength of the intercepting part 2 is also improved, so that the intercepting part 2 is not easy to break.
Specifically, the limiting part comprises a connecting slide block 6 and a fixing bolt 7, limiting slide grooves 9 are formed in two sides of the transmission frame 1, the connecting slide block 6 is connected with the transmission frame 1 in a sliding mode through the limiting slide grooves 9, the connecting slide block 6 is fixedly connected with the intercepting part 2, the fixing bolt 7 is in threaded connection with the upper portion of the connecting slide block 6, and the limiting slide grooves 9 are dovetail grooves in order to reduce the falling-off phenomenon of the connecting slide block 6; a plurality of positioning screw holes 8 are uniformly formed in the upper end of the transmission frame 1 at intervals, and the lower end of a fixing bolt 7 penetrates through the connecting slide block 6 and is in threaded connection with the positioning screw holes 8; when interception piece 2 is connected with conduction frame 1, accessible link block 6 links to each other with conduction frame 1 through sliding connection's mode with the both ends of interception piece 2 and the conduction frame 1 of both sides, can adjust the quantity in interception piece 2 according to the user demand, remove interception piece 2 to suitable position and interval back according to the user demand, through rotatory fixing bolt 7, make fixing bolt 7's lower extreme and 8 threaded connection of corresponding location screw, and then through fixing bolt 7 and the structure cooperation of location screw 8, realize the spacing fixed to interception piece 2, thereby accomplish the connection of interception piece 2 and conduction frame 1.
Specifically, the buffer frame comprises a fixed plate 3, a first buffer component 4 and a second buffer component 5, the fixed plate 3 is arranged at the lower end of each of the two transmission frames 1, the first buffer component 4 is arranged between the two ends of each of the transmission frames 1 and the fixed plate 3 on the same side, and the second buffer component 5 is arranged between the middle part of each of the transmission frames 1 and the fixed plate 3 on the same side; in order to facilitate the installation and fixation of the device, mounting plates are welded at two ends of the fixing plate 3, and the device and an elevator shaft are fixed through the mounting plates and bolts;
the first buffer assembly 4 comprises a guide rod 10 and a first force-discharging spring 11, the guide rods 10 are fixed at the lower ends of the two ends of the transmission frame 1, the lower ends of the guide rods 10 penetrate through the fixing plate 3 and are connected with nuts in a threaded manner, the fixing plate 3 is limited through the nuts, the fixing plate 3 is prevented from being separated from the guide rods 10, the guide rods 10 are in sliding connection with the fixing plate 3, and the first force-discharging springs 11 are sleeved on the outer sides of the guide rods 10 and located between the transmission frame 1 and the fixing plate 3;
when the interception frame was to personnel or object interception, the impact force that the interception produced can drive conduction frame 1 downstream, sliding connection through guide bar 10 and fixed plate 3, it is spacing to move down of conduction frame 1, place conduction frame 1 and take place the skew, when conduction frame 1 moved down, can extrude a power of unloading spring 11 at both ends, give power of unloading spring 11 with the impact force conduction, elastic deformation and tensioning atress through unloading spring 11, absorb and spread the power that comes to the conduction, thereby realize the effect of alleviating power, thereby realize the effect of alleviating impact force through buffering subassembly 4.
Wherein, buffer unit two 5 includes fixing base 12 down, goes up fixing base 13, conduction board 14 and unloads power spring two 15, and lower fixing base 12 is fixed with fixed plate 3, goes up fixing base 13 and is fixed with conduction frame 1, and sliding connection has the movable rod between lower fixing base 12 and the last fixing base 13, and the movable rod middle part is fixed with conduction board 14, and the movable rod outside just is located the upper and lower both ends of conduction board 14 and all has cup jointed and unload power spring two 15.
When the intercepting frame intercepts people or objects, the impact force generated by intercepting can drive the transmission frame 1 to move downwards, the force generated by the impact force is transmitted to the second unloading spring 15 at the upper end of the transmission plate 14 through the upper fixing seat 13, the second unloading spring 15 at the upper end of the transmission plate 14 pushes the transmission plate 14 to move downwards, the force is transmitted to the second unloading spring 15 at the lower end of the transmission plate 14, and the force generated by the impact is absorbed through the second unloading springs 15 at the upper end and the lower end of the transmission plate 14, so that the effect of relieving the impact is realized; and then when blocking personnel or object, can alleviate its impact force that produces effectively through the buffer frame, reduce the injury that the device caused to personnel when blocking, also reduce the injury that the object caused the device.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. Construction elevator well protective structure is built in room, its characterized in that: the device comprises an intercepting frame and a buffer frame, wherein the buffer frame is positioned below the intercepting frame, the intercepting frame comprises transmission frames (1) which are oppositely arranged at two sides of the intercepting frame, and an intercepting part (2) is connected between two corresponding transmission frames (1) through a limiting part; the buffer frame comprises a fixed plate (3), the fixed plate (3) is arranged under the transmission frame (1), and a buffer assembly is arranged between the fixed plate (3) and the transmission frame (1).
2. The building construction elevator shaft protective structure of claim 1, characterized in that: the buffer assembly comprises a first buffer assembly (4) and a second buffer assembly (5), wherein the first buffer assembly (4) is arranged between the two ends of the transmission frame (1) and the fixing plate (3) on the same side, and the second buffer assembly (5) is arranged between the first buffer assembly (4) at the two ends of the transmission frame (1).
3. The building construction elevator shaft protective structure of claim 2, characterized in that: the first buffer assembly (4) comprises a guide rod (10) and a first force unloading spring (11), the guide rod (10) is fixedly connected below the end part of the guide frame (1), the guide rod (10) is vertically arranged, the bottom end of the guide rod (10) penetrates through the fixing plate (3) and is fixedly provided with a stop part; the guide rod (10) is connected with the fixed plate (3) in a sliding mode, and the first unloading springs (11) are sleeved on the outer sides of the guide rods (10) between the guide frame (1) and the fixed plate (3).
4. The building construction elevator shaft protective structure of claim 2, characterized in that: buffer unit two (5) are including lower fixing base (12), last fixing base (13), conduction board (14) and unload power spring two (15), fixing base (12) are fixed with fixed plate (3) down, it is fixed with conduction frame (1) to go up fixing base (13), and lower fixing base (12) correspond the setting with last fixing base (13), it is provided with the telescopic link to fix between lower fixing base (12) and last fixing base (13), the telescopic link outside has cup jointed and has unloaded power spring two (15).
5. The building construction elevator shaft protective structure of claim 4, characterized in that: the periphery fixedly connected with conduction board (14) in the middle of the telescopic link, the telescopic link periphery on both sides all has cup jointed the power of unloading spring two (15) about conduction board (14).
6. The building construction elevator shaft protective structure of claim 1, characterized in that: the limiting part is connected with the transmission frame (1) in a sliding mode, and the limiting part fixing device further comprises a positioning part used for fixing the limiting part on the transmission frame (1).
7. The building construction elevator shaft protective structure of claim 6, characterized in that: the transmission frame (1) is provided with a limiting sliding groove (9) along the length direction, the limiting part comprises a connecting sliding block (6), the connecting sliding block (6) is connected with the transmission frame (1) in a sliding mode through the limiting sliding groove (9), and the connecting sliding block (6) is fixedly connected with the intercepting part (2); connecting block (6) threaded connection has fixing bolt (7), a plurality of location screw (8) have been seted up along its spacing spout (9) length direction interval in conduction frame (1), the lower extreme of fixing bolt (7) runs through connecting block (6) and location screw (8) threaded connection.
8. The building construction elevator shaft protective structure of claim 1, characterized in that: the limiting sliding groove (9) is a dovetail groove.
9. The building construction elevator shaft protective structure of claim 1, characterized in that: the interception piece (2) adopts a reticular chain, a rubber strip or a hoisting belt.
10. The building construction elevator shaft protective structure according to any one of claims 1 to 9, characterized in that: the mounting plates are welded at the two ends of the fixing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661315.5A CN114920105B (en) | 2022-06-13 | 2022-06-13 | Building construction elevator well protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661315.5A CN114920105B (en) | 2022-06-13 | 2022-06-13 | Building construction elevator well protective structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114920105A true CN114920105A (en) | 2022-08-19 |
| CN114920105B CN114920105B (en) | 2023-09-22 |
Family
ID=82814178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210661315.5A Active CN114920105B (en) | 2022-06-13 | 2022-06-13 | Building construction elevator well protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114920105B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007051503A (en) * | 2005-08-19 | 2007-03-01 | Alinco Inc | Fall preventive fence for roof work |
| US20070228352A1 (en) * | 2006-03-30 | 2007-10-04 | Kee Klamp Limited | Safety rail assembly |
| CN106829674A (en) * | 2017-01-04 | 2017-06-13 | 华东师范大学 | A kind of hoistway protection mechanism for improving high rise elevator security |
| CN107857178A (en) * | 2017-11-07 | 2018-03-30 | 快意电梯股份有限公司 | Protecting device of lift well |
| CN207988539U (en) * | 2017-12-16 | 2018-10-19 | 泸州职业技术学院 | A kind of construction guardrail |
| CN210067508U (en) * | 2019-05-07 | 2020-02-14 | 赵吉健 | Protection frame is used in building engineering construction |
| CN212781856U (en) * | 2020-05-14 | 2021-03-23 | 珠海渝合自动化设备有限公司 | Shock-proof type computer machine case |
| CN213200783U (en) * | 2020-04-28 | 2021-05-14 | 武汉市江楚开物科技有限公司 | Intelligent vending machine transportation device |
| CN214062407U (en) * | 2020-12-02 | 2021-08-27 | 贵州交通职业技术学院 | Safe anti-falling device for building construction |
| CN113356625A (en) * | 2021-06-28 | 2021-09-07 | 杨远程 | High stability building construction protector |
| CN214192122U (en) * | 2021-01-11 | 2021-09-14 | 任明礼 | Construction elevator well protector is built to building room |
| CN214695232U (en) * | 2021-04-16 | 2021-11-12 | 保利新联爆破工程集团有限公司 | Safety device in presplitting blasting is administered to side slope |
| CN216517048U (en) * | 2021-12-24 | 2022-05-13 | 石效辉 | Building outer wall construction that protective properties is good is with protection device that falls |
-
2022
- 2022-06-13 CN CN202210661315.5A patent/CN114920105B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007051503A (en) * | 2005-08-19 | 2007-03-01 | Alinco Inc | Fall preventive fence for roof work |
| US20070228352A1 (en) * | 2006-03-30 | 2007-10-04 | Kee Klamp Limited | Safety rail assembly |
| CN106829674A (en) * | 2017-01-04 | 2017-06-13 | 华东师范大学 | A kind of hoistway protection mechanism for improving high rise elevator security |
| CN107857178A (en) * | 2017-11-07 | 2018-03-30 | 快意电梯股份有限公司 | Protecting device of lift well |
| CN207988539U (en) * | 2017-12-16 | 2018-10-19 | 泸州职业技术学院 | A kind of construction guardrail |
| CN210067508U (en) * | 2019-05-07 | 2020-02-14 | 赵吉健 | Protection frame is used in building engineering construction |
| CN213200783U (en) * | 2020-04-28 | 2021-05-14 | 武汉市江楚开物科技有限公司 | Intelligent vending machine transportation device |
| CN212781856U (en) * | 2020-05-14 | 2021-03-23 | 珠海渝合自动化设备有限公司 | Shock-proof type computer machine case |
| CN214062407U (en) * | 2020-12-02 | 2021-08-27 | 贵州交通职业技术学院 | Safe anti-falling device for building construction |
| CN214192122U (en) * | 2021-01-11 | 2021-09-14 | 任明礼 | Construction elevator well protector is built to building room |
| CN214695232U (en) * | 2021-04-16 | 2021-11-12 | 保利新联爆破工程集团有限公司 | Safety device in presplitting blasting is administered to side slope |
| CN113356625A (en) * | 2021-06-28 | 2021-09-07 | 杨远程 | High stability building construction protector |
| CN216517048U (en) * | 2021-12-24 | 2022-05-13 | 石效辉 | Building outer wall construction that protective properties is good is with protection device that falls |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114920105B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100609009B1 (en) | Safety device for an elevator | |
| CN114920105A (en) | Protection structure for lift shaft in building construction | |
| CN207743674U (en) | A kind of power equipment lightning arrester | |
| CN115092808A (en) | Rope-breaking anti-falling device for tower crane hook and tower crane | |
| CN113451909B (en) | Trigger formula regulator cubicle with shock-absorbing function | |
| CN211783809U (en) | Weighing sensor with protection function | |
| CN118164205A (en) | Conveyor belt slime cleaning device based on many clearance units | |
| CN204607532U (en) | Steel tower lifting mechanism | |
| EP0180395A1 (en) | Hoist mechanism | |
| CN213245213U (en) | Safety device of elevator for construction | |
| CN213356008U (en) | Conveying device for aluminum profiles | |
| CN210557830U (en) | Bamboo salt finished product mobile device | |
| CN219918382U (en) | Portable industrial lightning protection device who installs | |
| CN210799872U (en) | High bearing capacity hydro-cylinder shock isolator | |
| CN218427771U (en) | Safety anti-falling caliper device | |
| CN220502348U (en) | Elevator maintenance anti-falling equipment | |
| CN221590856U (en) | Industry lifting door guiding mechanism | |
| CN216271485U (en) | Spring type self-tensioning mechanism | |
| CN213617639U (en) | Lifting slide rail device of stone processing machine | |
| CN218200806U (en) | Conveying device for green ceramic chips | |
| CN219541373U (en) | Board straightening device for building construction | |
| CN218415497U (en) | Electric power installation and maintenance platform | |
| CN221326215U (en) | Regenerated concrete compression-resistant experimental device | |
| CN116688393A (en) | Electric power high altitude anti-falling device assembly | |
| CN212356123U (en) | Elevator slide buffering protective structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |