CN115075537B - Anti-falling device of lifting type construction platform - Google Patents
Anti-falling device of lifting type construction platform Download PDFInfo
- Publication number
- CN115075537B CN115075537B CN202210798726.9A CN202210798726A CN115075537B CN 115075537 B CN115075537 B CN 115075537B CN 202210798726 A CN202210798726 A CN 202210798726A CN 115075537 B CN115075537 B CN 115075537B
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- box body
- driving
- construction platform
- groove
- block
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 230000001133 acceleration Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 16
- 230000009194 climbing Effects 0.000 description 4
- 230000001012 protector Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
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- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
- E04G3/325—Safety devices for stabilising the mobile platform, e.g. to avoid it swinging in the wind
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
Abstract
The utility model relates to a construction platform's field especially relates to a lifting type construction platform's anti-falling device, its guide rail, be used for connecting construction platform and sliding connection in that just set up the movable groove including and vertical direction in the device body in the movable groove, the device body include the box, be the symmetry set up in two sets of conflict subassemblies in the box, the logical groove in its inside has been seted up respectively to the opposite both sides of box intercommunication, conflict subassembly include along horizontal direction sliding connection in the butt piece in the logical groove, still be equipped with in the box according to the drive mechanism that box acceleration increase and drive butt piece moved towards outside. The falling distance is short, the effect that the reliability is high has this application.
Description
Technical Field
The application relates to the field of construction platforms, in particular to a falling protection device of a lifting type construction platform.
Background
The attached electric construction platform is a large-scale self-elevating high-altitude operation platform. It can replace steel, bamboo, wood scaffold and electric hanging basket, and can be widely used in the field of building construction.
In the daily construction process, materials such as various accessories and the like are often stacked on a construction platform, and high-altitude falling objects are very dangerous due to overload, so that the behavior is forbidden, but in actual implementation, the situation is often restricted due to various management negligence, personnel quality and other problems. At this time, the existence of the falling protector is very necessary, and when falling occurs, the climbing frame falling protector can emergently brake the card group to protect, so as to prevent danger.
Through searching, the Chinese patent application No. CN202122111956.7 discloses an automatic reset anti-falling climbing frame device, which comprises a triangular bracket, wherein the triangular bracket is fixed on a wall by an expansion screw, a rotary reset device is arranged on a main body block, and the main body block is arranged at one end of the bracket far away from the wall.
Aiming at the related technology, the inventor considers that the anti-falling device is of a swing needle type structure, when the climbing frame body accidentally falls, the climbing frame needs to reach a certain falling speed to drive the anti-falling block to be clamped on the track, and the anti-falling block is only used for bearing the whole weight of the construction platform, so that secondary falling is easy to occur.
Disclosure of Invention
In order to ensure the reliability of the anti-falling device, the application provides an anti-falling device of a lifting type construction platform.
The application provides a lifting type construction platform's anti-falling device adopts following technical scheme:
the utility model provides a lifting type construction platform's anti-falling device, includes and vertical direction set up and set up the guide rail of movable groove, be used for connecting construction platform and sliding connection in the device body in the movable groove, the device body include the box, be the symmetry set up in two sets of conflict subassemblies in the box, the logical groove in its inside is seted up respectively to the opposite both sides of box, conflict subassembly include along horizontal direction sliding connection in the butt piece in the logical groove, still be equipped with in the box according to the box acceleration increase and drive butt piece towards external drive's actuating mechanism.
Preferably, the conflict subassembly still includes runs through along the horizontal direction accomodate groove, sliding connection in accomodate the installation piece in the groove, fixed mounting in the installation piece keep away from the inside one end of box and butt in the leading wheel of removal groove lateral wall, actuating mechanism including the symmetry set up in two sets of link assembly in the box, link assembly including set up in the actuating lever of both sides about the installation piece, the installation piece is close to the inside one end of box and has been seted up and run through along the horizontal direction and follow the actuating groove that extends of vertical direction, the actuating lever middle part articulate in the box inner wall, actuating lever one end be equipped with pulley and butt in the butt piece surface, actuating lever other end fixedly connected with stretches into the actuating post in the actuating groove.
Preferably, the driving mechanism further comprises a mounting groove formed in the inner wall of the box body and extending along the vertical direction, a fixing sleeve fixedly mounted in the mounting groove, a piston rod with the top end extending into the fixing sleeve, a piston block fixedly connected to the top end of the piston rod and slidingly connected to the inner portion of the fixing sleeve, a driving block fixedly connected to the bottom end of the piston rod and located outside the fixing sleeve, an air inlet cylinder penetrating through the side wall of the box body and one end of which is communicated with the fixing sleeve, a rotating shaft rotatably supported in the air inlet cylinder, a helical blade fixedly connected to the rotating shaft, a driving gear rotatably connected to the outer wall of the box body and in transmission connection with the rotating shaft, a fixing rack fixedly connected to the inner wall of the guide rail and meshed with the driving gear along the vertical direction, a plurality of air inlet holes are formed in the side wall of the outer portion of the box body, and the connecting rod assembly further comprises a connecting rod with one end hinged to the mounting block and the other end hinged to the driving block.
Preferably, a magnetic ring is fixedly arranged at the bottom end of the outer wall of the fixed sleeve, and the driving block is made of magnetic materials.
Preferably, one end of the rotating shaft far away from the inside of the box body is coaxially and fixedly connected with a transmission gear meshed with the driving gear, and the diameter of the transmission gear is smaller than that of the driving gear.
Preferably, the outer wall of the box body is provided with a pressure relief hole communicated with the inside of the fixed sleeve.
Preferably, a plurality of clamping grooves which are uniformly distributed along the vertical direction are formed in two opposite side walls of the movable groove, and a plurality of clamping edges matched with the clamping grooves are fixedly connected to the surface of the abutting block, which is far away from the inside of the box body.
Preferably, tension springs are arranged between the abutting blocks at two sides.
Preferably, the mounting blocks are provided with at least two guide wheels in the vertical direction.
In summary, the present application includes at least one of the following beneficial technical effects:
1. under the cooperation of the box body, the abutting component and the driving mechanism, when a construction platform connected to the box body falls, the box body is driven to generate downward acceleration, at the moment, in the driving mechanism, a driving gear meshed with a fixed rack rotates a rotating shaft through a transmission gear and drives a spiral blade to start rotating, air is injected into a fixed sleeve through an air inlet cylinder, the air pressure in the fixed sleeve is gradually increased, so that a piston block and a piston rod are pushed to move, a driving block pushes a connecting rod to move downwards, an installation block is pulled to retract towards the inside, a guide wheel is retracted into a storage groove, and under the action of the driving rod, when the installation block moves towards the inside of the box body, one end of the driving rod pushes the abutting block to move outwards, and a clamping edge is inserted into the clamping groove to integrally limit the box body, when the abutting block needs to be retracted, the pressure between the clamping groove and the clamping edge is relieved, the abutting block is retracted into the through groove under the action of a tension spring, and the installation block drives the guide wheel to abut against the inner wall of the moving groove again under the action of the driving rod, so that the box body can be used continuously;
2. when the box body falls down, the acceleration is influenced by gravity, so that the helical blades can synchronously rotate at high speed, the pressure in the fixed sleeve is increased instantaneously, the construction platform can be limited in time, and the safety accidents are reduced;
3. through setting up the magnetic ring to adsorb the drive piece, reduce the box at the uniform velocity when descending, the condition that the inside pressure of fixed cover is too big makes the drive piece remove, and through the pressure release hole, make the inside pressure release that can in time of fixed sleeve, can normally remove when making construction platform go up and down.
Drawings
Fig. 1 is a schematic overall structure of the present embodiment.
Fig. 2 is an overall cross-sectional view of the present embodiment.
Fig. 3 is an overall cross-sectional view of the present embodiment.
Fig. 4 is a partial enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic view of the structure of the inside of the case in the present embodiment.
Reference numerals illustrate: 1. a guide rail; 2. a moving groove; 3. a case; 4. a collision component; 5. a through groove; 6. an abutment block; 7. a storage groove; 8. a mounting block; 9. a guide wheel; 10. a tension spring; 11. a clamping groove; 12. a clamping edge; 13. a driving mechanism; 14. a connecting rod assembly; 15. a mounting groove; 16. a fixed sleeve; 17. a piston rod; 18. a piston block; 19. a driving block; 20. an air inlet cylinder; 21. a rotating shaft; 22. a helical blade; 23. a drive gear; 24. a fixed rack; 25. an air inlet hole; 26. a pressure relief hole; 27. a magnetic ring; 28. a transmission gear; 29. a driving rod; 30. a connecting rod; 31. a driving groove; 32. and driving the column.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a lifting type construction platform's anti-falling device. Referring to fig. 1-5, an anti-falling device of a lifting construction platform comprises a guide rail 1, a device body and a lifting device, wherein the guide rail 1 is arranged in the vertical direction and provided with a movable groove 2, the device body is used for connecting the construction platform and is slidably connected in the movable groove 2, and the movable groove 2 is communicated with the outer wall of one side of the guide rail 1.
The device body includes box 3, be the symmetry set up in two sets of conflict subassemblies 4 in box 3, the logical groove 5 of intercommunication in its inside has been seted up respectively to the both sides that box 3 is relative, conflict subassembly 4 includes along horizontal direction sliding connection in logical inslot 6, along horizontal direction run through the storage tank 7 of butt piece 6, sliding connection in storage tank 7's installation piece 8, fixed mounting is in installation piece 8 keep away from the inside one end of box 3 and the guide pulley 9 of butt in the lateral wall of removal groove 2, all be equipped with two guide pulleys 9 on the installation piece 8 in vertical direction, and be equipped with extension spring 10 between the both sides butt piece 6.
In order to ensure the stability of the box body 3, a plurality of clamping grooves 11 which are uniformly distributed along the vertical direction are formed in two opposite side walls of the movable groove 2, and a plurality of clamping ribs 12 matched with the clamping grooves 11 are fixedly connected to the surface of the abutting block 6 away from the inside of the box body 3.
The box 3 is also internally provided with a driving mechanism 13 for driving the abutting block 6 to move towards the outside according to the acceleration increment of the box 3, and the driving mechanism 13 comprises two groups of connecting rod assemblies 14 symmetrically arranged in the box 3, a mounting groove 15 which is formed in the inner wall of the box 3 and extends along the vertical direction, a fixed sleeve 16 fixedly arranged in the mounting groove 15, a piston rod 17 of which the top end stretches into the fixed sleeve 16, a piston block 18 fixedly connected to the top end of the piston rod 17 and slidingly connected to the inside of the fixed sleeve 16, a driving block 19 fixedly connected to the bottom end of the piston rod 17 and positioned outside the fixed sleeve 16, an air inlet cylinder 20 penetrating through the side wall of the box 3 and one end of which is communicated with the fixed sleeve 16, a rotating shaft 21 rotatably supported in the air inlet cylinder 20, a helical blade 22 fixedly connected to the rotating shaft 21, a driving gear 23 rotatably connected to the outer wall of the box 3 and in transmission connection with the rotating shaft 21, and a fixed rack 24 fixedly connected to the inner wall of the guide rail 1 along the vertical direction and meshed with the driving gear 23.
Wherein, drive piece 19 sliding connection has seted up a plurality of inlet ports 25 in mounting groove 15, inlet tube 20 is located the outside lateral wall of box 3, the pressure release hole 26 of intercommunication in fixed sleeve 16 inside has been seted up to the box 3 outer wall, fixed sleeve 16 outer wall bottom fixed mounting has magnetic ring 27, drive piece 19 adopts magnetic material to adsorb drive piece 19, when reducing box 3 at the uniform velocity decline, the condition that drive piece 19 removed is made to the too big messenger of fixed sleeve internal pressure, and through pressure release hole 26, make the inside pressure release in time of fixed sleeve 16, can normally remove when making the construction platform go up and down.
In order to accelerate the air pressure increase in the fixed sleeve 16, one end of the rotating shaft 21 far away from the inside of the box body 3 is coaxially and fixedly connected with a transmission gear 28 meshed with the driving gear 23, and the diameter of the transmission gear 28 is smaller than that of the driving gear 23.
The connecting rod 30 subassembly is including setting up in the actuating lever 29 of both sides about the installation piece 8, one end articulates in the installation piece 8 and the other end articulates in the connecting rod 30 of actuating lever 19, two actuating levers 29 are located both sides around the installation piece 8 respectively, the actuating groove 31 that runs through along the horizontal direction and extends along vertical direction has been seted up to the inside one end of installation piece 8 near box 3, actuating lever 29 middle part articulates in box 3 inner wall, actuating lever 29 one end is equipped with the pulley and the butt is in butt piece 6 surface, actuating lever 29 other end fixedly connected with stretches into actuating post 32 in the actuating groove 31.
The implementation principle of the anti-falling device of the lifting type construction platform is as follows:
under the cooperation of box 3, conflict subassembly 4 and actuating mechanism 13, when the construction platform who is connected in box 3 takes place to fall, drive box 3 produces the acceleration that is directed downwards, at this moment in actuating mechanism 13, the drive gear 23 that meshes in fixed rack 24 makes pivot 21 rotatory through drive gear 28, and drive helical blade 22 begins to rotate, inject gas in through the inlet tube towards fixed sleeve 16, and make the atmospheric pressure in the fixed sleeve 16 gradually increase, thereby promote piston block 18 and piston rod 17 to remove, thereby make actuating block 19 promote connecting rod 30 towards the below remove, and pull installation piece 8 towards inside withdraw, make the guide pulley withdraw into accomodate groove 7, and under the effect of actuating lever 29, when installation piece 8 moves towards box 3 inside, make actuating lever 29 one end promote the butt piece 6 towards outside, and make joint edge 12 insert joint groove 11 and mesh, in order to carry out whole spacing to box 3, when needs withdraw butt piece 6, through moving up in box 3, alleviate the pressure between joint groove 11 and the joint edge 12, make butt piece 6 withdraw under the effect of leading to be in 5 under the effect of the extension spring, can make the guide pulley 2 under the effect of withdrawing under the butt piece 5, can make the guide pulley move under the effect of the guide pulley 2 under the effect of the guide pulley is continued.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The utility model provides a lifting type construction platform's anti-falling device which characterized in that: the device comprises a guide rail (1) which is arranged in the vertical direction and provided with a movable groove (2), and a device body which is used for connecting a construction platform and is in sliding connection with the movable groove (2), wherein the device body comprises a box body (3) and two groups of abutting components (4) which are symmetrically arranged in the box body (3), two opposite sides of the box body (3) are respectively provided with a through groove (5) which is communicated with the inside of the box body, the abutting components (4) comprise abutting blocks (6) which are in sliding connection with the through grooves (5) in the horizontal direction, and a driving mechanism (13) which drives the abutting blocks (6) to move outwards according to the acceleration increment of the box body (3) is further arranged in the box body (3);
the device is characterized in that the abutting component (4) further comprises a storage groove (7) penetrating through the abutting block (6) along the horizontal direction, a mounting block (8) in the storage groove (7) in a sliding manner, a guide wheel (9) fixedly mounted on one end of the mounting block (8) far away from the inner side of the box body (3) and abutting against the side wall of the moving groove (2), the driving mechanism (13) comprises two groups of connecting rod components (14) symmetrically arranged in the box body (3), the connecting rod components (14) comprise driving rods (29) arranged on the upper side and the lower side of the mounting block (8), one end, close to the inner side of the box body (3), of the mounting block (8) is provided with a driving groove (31) penetrating along the horizontal direction and extending along the vertical direction, the middle of the driving rod (29) is hinged to the inner wall of the box body (3), one end of the driving rod (29) is provided with a pulley and abuts against the surface of the abutting block (6), and the other end of the driving rod (29) is fixedly connected with a driving column (32) extending into the driving groove (31).
The driving mechanism (13) further comprises a mounting groove (15) which is formed in the inner wall of the box body (3) and extends along the vertical direction, a fixing sleeve (16) which is fixedly mounted in the mounting groove (15), a piston rod (17) which is fixedly connected to the top end of the piston rod (17) and is slidingly connected to the piston block (18) in the fixing sleeve (16), a driving block (19) which is fixedly connected to the bottom end of the piston rod (17) and is positioned outside the fixing sleeve (16), an air inlet cylinder (20) which penetrates through the side wall of the box body (3) and is communicated with the fixing sleeve (16) at one end, a rotating shaft (21) which is rotatably supported in the air inlet cylinder (20), a helical blade (22) which is fixedly connected to the rotating shaft (21), a driving gear (23) which is rotatably connected to the outer wall of the box body (3) and is in transmission connection with the rotating shaft (21), a fixing rack (20) which is fixedly connected to the inner wall of the guide rail (1) and is meshed with the driving gear (23) along the vertical direction, wherein the air inlet cylinder (20) is provided with a plurality of air inlet holes (25) are formed in the outer side wall of the box body (3), the connecting rod assembly (14) further comprises a connecting rod (30) with one end hinged to the mounting block (8) and the other end hinged to the driving block (19).
2. The fall arrest device for a lifting construction platform according to claim 1, wherein: the magnetic ring (27) is fixedly arranged at the bottom end of the outer wall of the fixed sleeve (16), and the driving block (19) is made of magnetic materials.
3. The fall arrest device for a lifting construction platform according to claim 1, wherein: one end of the rotating shaft (21) far away from the inside of the box body (3) is coaxially and fixedly connected with a transmission gear (28) meshed with the driving gear (23), and the diameter of the transmission gear (28) is smaller than that of the driving gear (23).
4. The fall arrest device for a lifting construction platform according to claim 1, wherein: the outer wall of the box body (3) is provided with a pressure relief hole (26) communicated with the inside of the fixed sleeve (16).
5. The fall arrest device for a lifting construction platform according to claim 1, wherein: the two opposite side walls of the movable groove (2) are respectively provided with a plurality of clamping grooves (11) which are uniformly distributed along the vertical direction, and the surface of the abutting block (6) away from the inside of the box body (3) is fixedly connected with a plurality of clamping edges (12) matched with the clamping grooves (11).
6. The fall arrest device for a lifting construction platform as defined in claim 5, wherein: tension springs (10) are arranged between the abutting blocks (6) at the two sides.
7. The fall arrest device for a lifting construction platform according to claim 1, wherein: at least two guide wheels (9) are arranged on the mounting blocks (8) in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210798726.9A CN115075537B (en) | 2022-07-08 | 2022-07-08 | Anti-falling device of lifting type construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210798726.9A CN115075537B (en) | 2022-07-08 | 2022-07-08 | Anti-falling device of lifting type construction platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115075537A CN115075537A (en) | 2022-09-20 |
| CN115075537B true CN115075537B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210798726.9A Active CN115075537B (en) | 2022-07-08 | 2022-07-08 | Anti-falling device of lifting type construction platform |
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| CN (1) | CN115075537B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084711B (en) * | 2023-03-03 | 2023-06-20 | 山西大学 | Building construction material lifting platform convenient to install and fix |
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|---|---|---|---|---|
| SE8605292D0 (en) * | 1986-12-10 | 1986-12-10 | Motala Portautomatik Broderna | FANGANORDNING |
| US6360848B1 (en) * | 2000-06-23 | 2002-03-26 | Pflow Industries, Inc. | Safety system for a vertical reciprocating conveyor |
| CN208994898U (en) * | 2018-10-08 | 2019-06-18 | 江西亿康云谷自动化设备有限公司 | Emergency safety safety device in a kind of cage |
| WO2020258368A1 (en) * | 2019-06-27 | 2020-12-30 | 苏泉云 | Anti-falling structure of attached lifting scaffold |
| CN213297091U (en) * | 2020-08-22 | 2021-05-28 | 深圳市胜德建筑科技有限公司 | Aluminum alloy falling object prevention pedal structure |
| CN114104903A (en) * | 2021-12-02 | 2022-03-01 | 上海龄慈机械设备有限公司 | Safety braking ventilation elevator |
| CN215948861U (en) * | 2021-01-05 | 2022-03-04 | 天津九盛工程技术有限公司 | Two-way anti-falling device of frame climbs |
| CN215978378U (en) * | 2021-09-14 | 2022-03-08 | 湖南巨鲨建筑工程有限公司 | Dual anti-falling device and climbing frame |
| CN112225121B (en) * | 2020-09-30 | 2022-03-25 | 重庆工商大学 | Anti-falling lifting device |
-
2022
- 2022-07-08 CN CN202210798726.9A patent/CN115075537B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8605292D0 (en) * | 1986-12-10 | 1986-12-10 | Motala Portautomatik Broderna | FANGANORDNING |
| US6360848B1 (en) * | 2000-06-23 | 2002-03-26 | Pflow Industries, Inc. | Safety system for a vertical reciprocating conveyor |
| CN208994898U (en) * | 2018-10-08 | 2019-06-18 | 江西亿康云谷自动化设备有限公司 | Emergency safety safety device in a kind of cage |
| WO2020258368A1 (en) * | 2019-06-27 | 2020-12-30 | 苏泉云 | Anti-falling structure of attached lifting scaffold |
| CN213297091U (en) * | 2020-08-22 | 2021-05-28 | 深圳市胜德建筑科技有限公司 | Aluminum alloy falling object prevention pedal structure |
| CN112225121B (en) * | 2020-09-30 | 2022-03-25 | 重庆工商大学 | Anti-falling lifting device |
| CN215948861U (en) * | 2021-01-05 | 2022-03-04 | 天津九盛工程技术有限公司 | Two-way anti-falling device of frame climbs |
| CN215978378U (en) * | 2021-09-14 | 2022-03-08 | 湖南巨鲨建筑工程有限公司 | Dual anti-falling device and climbing frame |
| CN114104903A (en) * | 2021-12-02 | 2022-03-01 | 上海龄慈机械设备有限公司 | Safety braking ventilation elevator |
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| CN115075537A (en) | 2022-09-20 |
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