An enclosure device for the construction of prefabricated building curtain walls

Through the design of the spray mechanism, locking mechanism and fixing mechanism, the problem of inconvenience and environmental protection of the enclosure device in curtain wall construction is solved, environmental protection, dust reduction and convenient connection at the construction site are realized, and the construction process is simplified.

CN115162837BActive Publication Date: 2025-08-05CSCEC INT URBAN CONSTR CO LTD
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Patent Information

Application Number
CN202210927894.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-03
Publication Date
2025-08-05
Estimated Expiration
2042-08-03

AI Technical Summary

Technical Problem

The existing enclosures are not light enough in curtain wall construction, and the traditional protection methods cannot meet the environmental protection and convenient connection needs of the construction site.

Method used

The spraying mechanism is used to quickly connect the top frames in series, the spray head sprays water to reduce dust, the locking mechanism realizes rapid splicing of the bottom plate, and the fixing mechanism is quickly limited through the screw rod to ensure the overall assembly is simple and convenient.

Benefits of technology

It realizes environmentally friendly dust reduction and convenient connections at the construction site, simplifies the construction process and improves construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a protective enclosure device for the construction of assembled building curtain walls, comprising a base plate, a protective rod, a top frame, a spray mechanism, a docking block, a fixing mechanism, a locking mechanism and a buffer mechanism. The present invention enables the top frames to be quickly connected in series through the provision of the spray mechanism. It is only necessary to connect the water source to the top frame at the most side so that the interiors of multiple groups of top frames are filled with water. The spray heads can spray water to reduce dust at the construction site, effectively meeting the environmental protection requirements of the construction site. The provision of the locking mechanism enables the base plates to be quickly spliced together, and the operation is convenient. The base plates can be fixed in one step without the need to tighten multiple sets of bolts, thereby ensuring the convenience of base plate connection and simple steps. Relying on the provision of the fixing mechanism, it is also only necessary to rotate the spiral rod so that the series rod and the serial rod can be quickly moved inside the base plate, and the protective rod can be quickly limited to form a fixation. The overall assembly process is simple and the operation process is convenient.
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Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to an enclosure device for the construction of assembled building curtain walls. Background Art

[0002] Construction refers to the production activities during the implementation phase of a project. It is the process of constructing various buildings. It can also be described as the process of transforming the various lines on the design drawings into physical objects at designated locations. It includes foundation construction, main structure construction, roofing construction, and decorative engineering. The location where construction takes place is called a "construction site," also known as a "worksite."

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in this technology: Currently, during the curtain wall construction process, enclosure devices are used to protect the construction site. However, the demand for the use of enclosure devices is getting higher and higher. Enclosure devices that only provide simple protection cannot meet the use demand, are not good at assisting the construction process, and are traditional in use and not easy to use.

[0004] To this end, we propose an enclosure device for prefabricated building curtain wall construction to solve the above problems. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid blurring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems and / or the problems existing in the existing enclosure device for the construction of prefabricated building curtain walls, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a protective device for the construction of prefabricated building curtain walls. Through the setting of the spray mechanism, the top frames can be quickly connected in series. It is only necessary to connect the water source to the top frame on the outermost side so that there is water inside the multiple groups of top frames. The nozzle can spray water to reduce dust at the construction site, effectively meeting the environmental protection requirements of the construction site. Through the setting of the locking mechanism, the bottom plates can be quickly spliced together, and the operation is convenient. The bottom plates can be fixed in one step without the need to tighten multiple sets of bolts, ensuring the convenience of bottom plate connection and simple steps. Relying on the setting of the fixing mechanism, it is also only necessary to rotate the spiral rod so that the series rod and the serial rod can move quickly inside the bottom plate, and the protective rod can be quickly limited to form a fixation. The overall assembly process is simple and the operation process is convenient.

[0008] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0009] A protective device for construction of assembled building curtain walls, comprising:

[0010] The bottom plate has a side wall provided with a bottom plate, and the other side wall of the bottom plate has a bottom plate provided with a bottom plate;

[0011] A protection rod, the protection rod is located on the top of the bottom plate, and a limiting hole is provided on the symmetrical side wall of the protection rod near the bottom of the protection rod;

[0012] A top frame is mounted on the top of the protective rod, a nozzle is mounted on the top of the top frame, and a sliding groove is provided on the bottom of the top frame;

[0013] A spray mechanism, the spray mechanism being located inside the top frame;

[0014] A fixing mechanism, the fixing mechanism being located at the connection between the protection rod and the base plate;

[0015] The locking mechanism is installed in the interior.

[0016] As a preferred solution of the enclosure device for the construction of prefabricated building curtain walls described in the present invention, the spray mechanism includes a fixed tube located inside the top frame, a movable tube located inside the fixed tube, an adjustment block installed on the rod body of the movable tube, a lifting groove opened on the side wall of the adjustment block, a retreat rod located inside the lifting groove, a shifting groove opened on the side end of the fixed tube, and a card groove opened at the bottom of the shifting groove.

[0017] As a preferred solution of the enclosure device for the construction of prefabricated building curtain walls described in the present invention, it also includes a docking block, which is installed at the other end of the movable tube. The interior of the docking block is hollow, and a spring is provided inside the docking block. A clamping block is installed at the other end of the other end of the spring, and the clamping block slides out of the bottom of the docking block.

[0018] As a preferred solution of the enclosure device for the construction of prefabricated building curtain walls described in the present invention, the fixing mechanism includes a series rod, a shift rod installed at the other end of the series rod, a series rod installed on the rod body of the shift rod, and a series rod installed on the rod body of the series rod.

[0019] As a preferred solution of the enclosure device for construction of an assembled building curtain wall according to the present invention, the series rod extends through and into the interior of the limiting hole.

[0020] As a preferred solution of the enclosure device for the construction of prefabricated building curtain walls described in the present invention, the locking mechanism includes a rotating rod located inside the base plate, a rotating plate installed on the shaft of the rotating rod, a swing rod installed inside, a locking ring installed at the other end of the swing rod and extending out, a connecting block installed on the shaft of the swing rod, a threaded head installed on the port of the rotating rod, and a locking rod installed inside.

[0021] As a preferred solution of the enclosure device for the construction of prefabricated building curtain walls described in the present invention, it also includes a buffer mechanism, which includes a first fixed block installed on the top of the base plate, a first rotating shaft hinged at the top of the first fixed block, a second rotating shaft located on the side wall of the protective rod, a second mounting block hinged at the side wall of the second rotating shaft and a second spring connecting the first rotating shaft and the second rotating shaft, and the second mounting block is installed on the side wall of the protective rod.

[0022] As a preferred solution of the enclosure device for the construction of prefabricated building curtain walls described in the present invention, it also includes a shock-absorbing mechanism, which includes a fixed cylinder installed on the top of the base plate, a buffer groove opened on the top of the fixed cylinder, a piston plate located inside the buffer groove, an air hole opened on the top of the piston plate and a sliding rod installed on the top of the air hole, the shock-absorbing mechanism passes through the second spring, the fixed cylinder is connected to the first rotating shaft, and the other end of the sliding rod is connected to the second rotating shaft.

[0023] Compared with the existing technology: the setting of the spray mechanism makes it possible to quickly connect the top frames in series. It is only necessary to connect the water source to the top frame on the far side so that there is water inside the multiple groups of top frames. The nozzle can spray water to reduce dust at the construction site, effectively meeting the environmental protection needs of the construction site. The setting of the locking mechanism makes it possible to quickly splice the bottom plates, which is easy to operate. The bottom plates can be fixed in one step without the need to tighten multiple sets of bolts, ensuring the convenience of bottom plate connection and simple steps. Relying on the setting of the fixing mechanism, it is also only necessary to rotate the spiral rod so that the series rod and the serial rod can move quickly inside the bottom plate, and the protective rod can be quickly limited to form a fixation. The overall assembly process is simple and the operation process is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0025] Figure 1This is a schematic diagram of the overall structure of an enclosure device for construction of an assembled building curtain wall according to the present invention;

[0026] Figure 2 This is a structural schematic diagram of a locking mechanism for an enclosure device used in the construction of an assembled building curtain wall according to the present invention;

[0027] Figure 3 This is a schematic diagram of the installation structure of a spray mechanism and a top frame of an enclosure device for construction of an assembled building curtain wall according to the present invention;

[0028] Figure 4 This invention is an enclosure device for the construction of an assembled building curtain wall Figure 3 Schematic diagram at point A in the middle;

[0029] Figure 5 This invention is an enclosure device for the construction of an assembled building curtain wall Figure 3 Schematic diagram at point B in the middle;

[0030] Figure 6 This is a schematic structural diagram of a fixing mechanism for an enclosure device used in the construction of an assembled building curtain wall according to the present invention;

[0031] Figure 7 This is a schematic structural diagram of a buffer mechanism of an enclosure device for construction of an assembled building curtain wall according to the present invention;

[0032] Figure 8 The present invention is a schematic diagram of the structure of a shock absorber for an enclosure device used in the construction of an assembled building curtain wall. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0035] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0036] The present invention provides an enclosure device for the construction of prefabricated building curtain walls. The top frames can be quickly connected in series through the arrangement of a spray mechanism. It only needs to connect the water source to the top frame at the most side so that there is water inside the multiple groups of top frames. The sprinkler head can spray water to reduce dust on the construction site, effectively meeting the environmental protection requirements of the construction site. The bottom plates can be quickly spliced together through the arrangement of a locking mechanism, and the operation is convenient. The bottom plates can be fixed in one step without the need to tighten multiple sets of bolts, thereby ensuring the convenience of bottom plate connection and simple steps. Relying on the arrangement of the fixing mechanism, it is also only necessary to rotate the spiral rod so that the series rod and the serial rod can be quickly moved inside the bottom plate, and the protective rod can be quickly limited to form a fixation. The overall assembly process is simple and the operation process is convenient.

[0037] Figure 1-8 The first structural diagram of the embodiment of the present invention is a kind of enclosure device for the construction of prefabricated building curtain wall. Figures 1-8 In this embodiment, a protective device for construction of an assembled building curtain wall includes a base plate 100, a protective rod 200, a top frame 300, a spray mechanism 400, a docking block 500, a fixing mechanism 600, a locking mechanism 700 and a buffer mechanism 800.

[0038] A plurality of array-distributed protective rods 200 are movably installed on the upper surface of the base plate 100. The end of the protective rod 200 away from the base plate 100 is threadedly connected to the top frame 300. A groove 120 is provided on one side wall of the base plate 100, and a protrusion 130 embedded in the groove 120 is protruded on the side wall opposite to the groove 120; a locking mechanism 700 is provided near the protrusion 130 of the base plate 100, and the protrusion 130 and the base plate 100 near the protrusion 130 are hollow. A spray mechanism 400 is provided inside the base plate 100 corresponding to the protective rod 200.

[0039] The locking mechanism 700 includes a rotating rod 710 rotatably mounted within the base plate 100, a swinging rod 730 rotatably mounted within the protrusion 130, and a C-shaped locking ring 740 fixed to the end of the swinging rod 730 away from the rotating rod 710. A locking rod 770 corresponding to the locking ring 740 is horizontally fixed within the groove 120. Connecting blocks 750 are symmetrically mounted on both side walls of the swinging rod 730. The connecting blocks 750 are rotatably connected to the inner wall of the protrusion 130, and a torsion spring is provided at the connection. A rotating plate 720 is provided below the swinging rod 730, and the rotating rod 710 is fixedly connected to the side wall of the rotating plate 720. A threaded head 760 is fixed to the end of the rotating rod 710, and the threaded head 760 is threadedly connected to the side wall of the base plate 100. During the rotation process, the rotating plate 720 contacts the end of the swing rod 730, and the swing rod 730 flips over with the connecting block 750 and the support point, so that one end of the swing rod 730 flips upward and the other end flips downward, driving one end of the locking ring 740 to flip to fit with the locking rod 770.

[0040] A spray mechanism 400 is provided within the top frame 300. The spray mechanism 400 comprises a fixed horizontally disposed fixed tube 410 and a movable tube 420 telescopically connected to one end of the fixed tube 410. The fixed tube 410 is in communication with the movable tube 420. The end of the fixed tube 410, away from the movable tube 420, extends through the top frame 300. An adjustment block 430 is fixedly connected to the bottom end surface of the movable tube 420. A sliding slot 320 is horizontally defined at the bottom end surface of the top frame 300, corresponding to the adjustment block 430, for allowing the adjustment block 430 to extend and slide. A docking block 500 is protruding from the bottom end of the movable tube 420, away from the fixed tube 410. The docking block 500 is hollow, and a clamping block 520 is slidably mounted within the bottom opening. One end of the clamping block 520 extending into the docking block 500 is fixedly connected to a spring 510. The spring 510 is vertically disposed, with the end away from the clamping block 520 fixedly connected to the inner wall of the docking block 500. The retreat rod 450 drives the clamping block 520 at the bottom of the docking block 500 to move upward, and the spring 510 is compressed. When the docking block 500 slides to the end of the displacement groove 460 , the clamping block 520 corresponds to the clamping groove 470 .

[0041] The end of the clamping block 520 facing the adjustment block 430 is fixedly connected to a retraction rod 450. The retraction rod 450 passes through and slidably connects to the docking block 500. The end of the retraction rod 450 away from the clamping block 520 is embedded in the interior of the adjustment block 430. The side wall of the adjustment block 430 is vertically defined with a lifting groove 440 for the retraction rod 450 to be embedded and slide. The retraction rod 450 has a C-shaped structure. The inner wall of the end of the fixed tube 410 extending out of the top frame 300 is defined with a displacement groove 460 corresponding to the docking block 500. The inner wall of the displacement groove 460 is defined with a clamping groove 470 corresponding to the clamping block 520.

[0042] Multiple nozzles 310 are arranged in a row on the top surface of the top frame 300. Each group of nozzles 310 is connected to a fixed pipe 410. The connecting pipe is fixedly connected to the fixed pipe 410. Then, the sidemost top frame 300 is connected to a water source. This ensures that the interior of each group of top frames 300 is filled with water. The nozzles 310 can spray water to reduce dust at the construction site.

[0043] The fixing mechanism 600 includes a serial rod 620, a serial rod 610, and a screw rod 640. The screw rod 640 is embedded in a threaded connection with the base plate 100. The upper surface of the base plate 100 has multiple arrayed sockets for inserting the bottom of the protective rod 200. The bottom side wall of the protective rod 200 has a limiting hole 210. The end of the screw rod 640 that extends into the base plate 100 is rotatably connected to the shift rod 630. The outer wall of the shift rod 630 is fixedly connected to the L-shaped serial rod 610. The serial rod 610 is arranged in multiple groups in an array, and the connection between the multiple groups of serial rods 610 is respectively provided with an L-shaped serial rod 620. The multiple groups of serial rods 620 move synchronously with the multiple groups of serial rods 610. The ends of the serial rods 620 extend from the interior of the base plate 100 into the sockets and are fixedly plugged into the limiting hole 210.

[0044] The buffer mechanism 800 includes a first fixed block 810, a first rotating shaft 820 hinged on the top of the first fixed block 810, a second rotating shaft 830, a second mounting block 840 hinged on the side wall of the second rotating shaft 830 and a second spring 850 connected between the second rotating shaft 830 and the first rotating shaft 820. The shock absorbing mechanism 900 connects the first rotating shaft 820 and the second rotating shaft 830 and passes through the inner circle of the second spring 850. The shock absorbing mechanism 900 includes a fixed cylinder 910, a buffer groove 920 opened at the top of the fixed cylinder 910, a piston plate 930 located inside the buffer groove 920, an air hole 940 opened at the top of the piston plate 930 and a sliding rod 950 installed at the top center of the piston plate 930. The sliding rod 950 is connected to the second rotating shaft 830, the fixed cylinder 910 is connected to the first rotating shaft 820, and the first fixed block 810 and the second mounting block 840 are respectively installed on the top of the base plate 100 and the side wall of the protective rod 200 by screws. When the protective rod 200 flips over, the protective rod 200 pushes the second mounting block 840 to drive the sliding rod 950 and the piston plate 930 to slide inside the buffer groove 920. When the second rotating shaft 830 approaches the first rotating shaft 820, it squeezes the second spring 850. The second spring 850 buffers the impact force. At the same time, the piston plate 930 slides inside the buffer groove 920. The air passes through the air hole 940 and rubs the side wall of the air hole 940 to provide auxiliary buffering. When the second spring 850 rebounds, the air enters the buffer groove 920 through the air hole 940. The friction between the air and the air hole 940 neutralizes the rebound force of the second spring 850, preventing the rebound of the second spring 850 from causing the protective rod 200 to shake too much.

[0045] Combine Figures 1-8When the locking nut 740 is engaged with the locking nut 770, the locking nut 740 is engaged with the locking nut 770, and the locking nut 740 is engaged with the locking nut 770.

[0046] After the bottom plate 100 is fixed, the protective rod 200 is inserted into the inner hole of the upper surface of the bottom plate 100. After the bottom plate 100 is inserted, the screw rod 640 is rotated, and the screw rod 640 spirals into the bottom plate 100. At this time, the shift rod 630 is first plugged into the limiting hole 210 at the bottom of the protective plate. When the shift rod 630 moves, the serial rod 610 also moves accordingly, and then the serial rod 620 fixed with the serial rod 610 moves synchronously and is respectively inserted into the limiting holes 210 at the bottom of different protective rods 200, so that multiple groups of protective rods 200 are synchronously fixed on the bottom plate 100. After the protective rod 200 is fixed, it is threadedly installed on the top frame 300.

[0047] The top frame 300 and the bottom plate 100 can also be spliced with each other. Pull the adjustment block 430, the adjustment block 430 drives the moving tube 420 to extend from the inside of the fixed tube 410 and move toward the other spliced fixed tube 410. When the moving tube 420 extends out of the top frame 300, the docking block 500 at the bottom of the connecting tube corresponds to the displacement groove 460 on the end face of the fixed tube 410, so as to push the retreat rod 450 upward. The retreat rod 450 drives the block 520 at the bottom of the docking block 500 to move upward, and the spring 510 is compressed. When the docking block 500 is When 00 slides to the end of the shift groove 460, the block 520 corresponds to the slot 470. At this time, the retreat rod 450 is released, and the rebound force of the spring 510 pushes the block 520 toward the inside of the slot 470, and then the block 520 is fixed inside the slot 470, and the docking block 500 is fixed inside the shift groove 460. The connecting pipe and the fixed pipe 410 are fixedly connected, and then the top frame 300 on the most side is connected to the water source, so that there is water inside the multiple groups of top frames 300, and the nozzle 310 can spray water to reduce dust at the construction site.

[0048] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protective device for the construction of assembled building curtain walls, characterized in that: include: A bottom plate (100), wherein a side wall of the bottom plate (100) is provided with a groove (120), and another side wall of the bottom plate (100) is provided with a protrusion (130) that cooperates with the groove (120); A protection rod (200), the protection rod (200) being located on the top of the bottom plate (100), and a limiting hole (210) being provided on a symmetrical side wall of the protection rod (200) near the bottom of the protection rod (200); A top frame (300), the top frame (300) is mounted on the top of the protection rod (200), a nozzle (310) is mounted on the top of the top frame (300), and a sliding groove (320) is provided at the bottom of the top frame (300); A spray mechanism (400), the spray mechanism (400) being located inside the top frame (300); a fixing mechanism (600), the fixing mechanism (600) being located at the connection between the protection rod (200) and the base plate (100); a locking mechanism (700), mounted inside the protrusion (130); The spray mechanism (400) includes a fixed tube (410) located inside the top frame (300), a movable tube (420) located inside the fixed tube (410), an adjustment block (430) installed on the rod body of the movable tube (420), a lifting groove (440) provided on the side wall of the adjustment block (430), a retreat rod (450) located inside the lifting groove (440), a displacement groove (460) provided on the side end of the fixed tube (410), and a clamping groove (470) provided at the bottom of the displacement groove (460); The enclosure device for the construction of an assembled building curtain wall further comprises a docking block (500), wherein the docking block (500) is mounted at the other end of the movable tube (420), the interior of the docking block (500) is hollow, a spring (510) is provided inside the docking block (500), a clamping block (520) is mounted at the other end of the other end of the spring (510), and the clamping block (520) slides out of the bottom of the docking block (500); The fixing mechanism (600) comprises a connecting rod (610), a shifting rod (630) mounted on the other end of the connecting rod (610), a connecting rod (610) mounted on the shaft of the shifting rod (630), and a connecting rod (620) mounted on the shaft of the connecting rod (610).

2. The enclosure device for construction of an assembled building curtain wall according to claim 1, characterized in that: The serial rod (620) extends through the interior of the limiting hole (210).

3. The enclosure device for construction of an assembled building curtain wall according to claim 2, characterized in that: The locking mechanism (700) comprises a rotating rod (710) located inside the base plate (100), a rotating plate (720) mounted on the shaft of the rotating rod (710), a swinging rod (730) mounted inside the protrusion (130), a locking ring (740) mounted on the other end of the swinging rod (730) and extending out of the protrusion (130), a connecting block (750) mounted on the shaft of the swinging rod (730), a threaded head (760) mounted on the end of the rotating rod (710), and a locking rod (770) mounted inside the groove (120).

4. The enclosure device for construction of an assembled building curtain wall according to claim 3, characterized in that: The invention also includes a buffer mechanism (800), wherein the buffer mechanism (800) includes a first fixed block (810) mounted on the top of the base plate (100), a first rotating shaft (820) hinged on the top of the first fixed block (810), a second rotating shaft (830) located on the side wall of the protective rod (200), a second mounting block (840) hinged on the side wall of the second rotating shaft (830), and a second spring (850) connecting the first rotating shaft (820) and the second rotating shaft (830), wherein the second mounting block (840) is mounted on the side wall of the protective rod (200).

5. The enclosure device for construction of an assembled building curtain wall according to claim 4, characterized in that: The invention also includes a shock absorbing mechanism (900), wherein the shock absorbing mechanism (900) includes a fixed cylinder (910) installed on the top of the base plate (100), a buffer groove (920) opened on the top of the fixed cylinder (910), a piston plate (930) located inside the buffer groove (920), an air hole (940) opened on the top of the piston plate (930), and a slide rod (950) installed on the top of the air hole (940). The shock absorbing mechanism (900) passes through the second spring (850), the fixed cylinder (910) is connected to the first rotating shaft (820), and the other end of the slide rod (950) is connected to the second rotating shaft (830).

Citation Information

Patent Citations

  • Construction protection device adjacent to railway line

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  • Safety fence convenient to disassemble and assemble

    CN214330206U

  • Platform guardrail convenient to disassemble and adjust

    CN214365407U