A telescopic safety barrier

Abstract

The utility model discloses a telescopic safety guard rail relates to guard rail technical field, include: the at least two of opposite setting of stand column have, the crossbar is connected between two adjacent stand columns, and the crossbar includes coaxial first crossbar and second crossbar, and the first crossbar slidingly inserts in the second crossbar, and the first crossbar has the rack structure on, locking piece is connected with the second crossbar, and locking piece has the plug -in and is used for driving plug -in operating part, and locking piece carries out the locking cooperation to the rack structure of first crossbar through plug -in, the utility model technical scheme, stand column is connected with the crossbar, and locking piece is connected with the second crossbar, when needing to adjust safety guard rail, rotates operating part, makes plug -in and rack structure unlock, and the first crossbar is in the second crossbar sliding, adjusts to certain distance after, rotates operating part again, makes plug -in and rack structure lock, and completes locking. Use this device, can accurately adjust the distance of first crossbar and second crossbar, reaches the purpose of stepless regulation.

Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, specifically to a retractable safety guardrail. Background Technology

[0002] In engineering construction, the characteristic of modular buildings is that on-site construction and factory construction can be carried out simultaneously, greatly reducing the construction period. The process of modular building is as follows: modular boxes are first manufactured in the factory, transported to the site, and then hoisted to the working level. Subsequently, workers are sent to the roof to handle the connection of corner fittings between two boxes and the lateral joints between the boxes. Each step from hoisting onwards involves working at heights.

[0003] Currently, safety railings are installed using conventional scaffolding methods. The uprights are welded and locked to the main structure, and the horizontal bars are then connected to the uprights via fasteners. This process is complex and time-consuming, which is inconsistent with the design concept of modular buildings. In some existing technologies, most of the railings are custom-made and only suitable for one size. This cannot meet the needs of all modular box types, and the distance between the connecting plates of the modular boxes is fixed, making it impossible to set different modules to produce finished railings.

[0004] Chinese patent document CN111636703A discloses a retractable safety railing, which is equipped with a retractable crossbeam and retractable posts to achieve horizontal and vertical extension and retraction of the safety railing. It occupies a small volume, making it easy to transport and store. Moreover, the overall length of the safety railing can be adjusted as needed to adapt to different jobs, making it highly adaptable.

[0005] However, while existing technology can extend and retract, the distance is not precise enough and cannot achieve stepless adjustment, so it still cannot safely protect pedestrians when working at heights. Utility Model Content

[0006] In view of this, the present invention provides a retractable safety railing to solve the problem of insufficient precision in adjusting the distance of the safety railing.

[0007] This utility model provides a retractable safety railing, including: The columns have at least two that are arranged opposite to each other; A crossbar connects two adjacent columns. The crossbar includes a first crossbar and a second crossbar that are coaxially arranged. The first crossbar is slidably inserted into the second crossbar. The first crossbar has a rack structure. A locking element, connected to the second crossbar, the locking element having a plug and an operating element for driving the plug, the locking element engaging with the rack structure of the first crossbar via the plug.

[0008] This utility model's technical solution involves connecting the uprights and crossbars, and connecting the locking element to the second crossbar. When adjustment of the safety railing is required, rotating the operating element unlocks the insert and rack structure, allowing the first crossbar to slide within the second crossbar. After adjusting to a certain distance, rotating the operating element again locks the insert and rack structure, completing the locking process. Using this device, the distance between the first and second crossbars can be precisely adjusted, achieving stepless adjustment.

[0009] Optionally, the locking member includes: an outer fastener having a through hole for passing through the first crossbar, and the outer fastener having a channel extending radially to communicate with the through hole; The plug is slidably disposed within the channel, and one end of the plug is connected to a drive plate outside the channel. An elastic element is connected to the drive plate, and the elastic element has a biasing force that drives the plug to move toward the unlocking direction away from the rack structure.

[0010] In the above solution, the fixing and unlocking of the plug and the rack structure can be achieved. Specifically, the outer fastener is securely connected to the second crossbar. When the connection between the plug and the rack structure is unlocked, the elastic element generates bias force, which drives the drive plate and the plug to move away from the rack structure. At this time, the distance between the first crossbar and the second crossbar can be adjusted.

[0011] Optionally, the side of the drive board facing away from the plug-in is a flat surface or an inner curved surface.

[0012] In the above scheme, the driving plate is subjected to uniform force, and the elastic element generates the same bias force.

[0013] Optionally, the operating member is rotatably mounted on the outer fastener, and the operating member has an eccentric portion for engaging with the drive plate.

[0014] In the above scheme, the drive plate cooperates with the operating component. Rotating the operating component moves the drive plate, causing the drive plate to press down and the elastic component to contract. The drive plug is fixed to the rack structure.

[0015] Optionally, the outer fastener has a mounting groove, the operating member is rotatably disposed in the mounting groove, the eccentric part has a positioning hole, the inner wall of the mounting groove has a positioning member suitable for protrusion, and the protruding end of the positioning member is suitable for insertion into the positioning hole.

[0016] In the above scheme, when locking the plug-in and the rack structure, the positioning element is inserted into the positioning hole to prevent the elastic element from driving the plug-in to move.

[0017] Optionally, the mounting groove has a through hole suitable for inserting a positioning element.

[0018] In the above scheme, when the locking component needs to reach the locked state, the positioning component is inserted into the through hole to fix the positioning component to the positioning hole. When the locking component needs to reach the unlocked state, the positioning component is pulled out of the through hole to unlock the positioning component from the positioning hole.

[0019] Optionally, the operating element has an operating handle that extends radially outward.

[0020] The above solution is easy to operate. Specifically, when it is necessary to lock or unlock the plug and rack structure, the operating handle can be turned.

[0021] Optionally, each of the columns is connected to at least one second crossbar, and each second crossbar is provided with at least one locking element; A first crossbar is provided between two second crossbars of the same height between two adjacent columns, and the two ends of the first crossbar are respectively inserted into the two second crossbars.

[0022] The above solution not only increases the length of the safety railing, but also allows for more precise adjustment of the distance between the first and second horizontal bars.

[0023] Optionally, each of the columns has at least two second crossbars arranged vertically and parallel to each other.

[0024] The above solution increases the stress on the column, making the device more stable.

[0025] Optionally, the second crossbar is detachably plugged into the column.

[0026] The above solution is easy to install and disassemble. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a perspective view of a retractable safety railing according to an embodiment of the present utility model; Figure 2 This is a front view of a retractable safety railing according to an embodiment of the present utility model; Figure 3 This is a perspective view of a locking component according to an embodiment of the present utility model; Figure 4 This is a front view of a locking component according to an embodiment of the present utility model.

[0029] Explanation of reference numerals in the attached figures: 1. Column; 2. First crossbar; 3. Second crossbar; 4. Rack and pinion structure; 5. Locking element; 6. Insert; 7. Operating element; 8. External fastener; 9. Through hole; 10. Drive plate; 11. Elastic element; 12. Positioning hole; 13. Through hole; 14. Operating handle; 15. Rotating shaft. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1 As shown, this is a specific implementation of the retractable safety railing provided in this embodiment, including: a post 1, a crossbar, and a locking component 5.

[0035] like Figure 1 As shown, column 1 has at least two columns arranged opposite to each other; like Figure 1As shown, a crossbar connects two adjacent columns 1. The crossbar includes a first crossbar 2 and a second crossbar 3 arranged coaxially. The first crossbar 2 is slidably inserted into the second crossbar 3. The first crossbar 2 has a rack structure 4. like Figure 3 As shown, the locking member 5 is connected to the second crossbar 3. The locking member 5 has a plug 6 and an operating member 7 for driving the plug 6. The locking member 5 locks the rack structure 4 of the first crossbar 2 through the plug 6.

[0036] In this embodiment, the column 1 is connected to the crossbar, and the locking component 5 is connected to the second crossbar 3. When the safety railing needs adjustment, the operating component 7 is rotated to unlock the insert 6 from the rack structure 4, allowing the first crossbar 2 to slide within the second crossbar 3. After adjusting to a certain distance, the operating component 7 is rotated again to lock the insert 6 to the rack structure 4, completing the locking process. Using this device, the distance between the first crossbar 2 and the second crossbar 3 can be precisely adjusted, achieving stepless adjustment.

[0037] like Figure 3 As shown, the locking component 5 includes: an outer fastener 8, which has a through hole 9 for passing through the first crossbar 2, and a channel extending radially to connect with the through hole 9; a plug 6 is slidably disposed within the channel, one end of the plug 6 is connected to a drive plate 10 outside the channel, and an elastic element 11 is connected to the drive plate 10, the elastic element 11 having a biasing force that drives the plug 6 to move away from the unlocking direction of the rack structure 4. This configuration allows for the fixing and unlocking of the plug 6 and the rack structure 4. Specifically, the outer fastener 8 is securely connected to the second crossbar 3. When the connection between the plug 6 and the rack structure 4 is unlocked, the elastic element 11 generates a biasing force, causing the drive plate 10 and the plug 6 to move away from the rack structure 4. At this time, the distance between the first crossbar 2 and the second crossbar 3 can be adjusted.

[0038] Of course, the above description is not limiting. In some alternative embodiments, the drive board 10 may be omitted and the plug 6 may be connected to the elastic element 11.

[0039] like Figure 3 As shown, the side of the drive plate 10 facing away from the plug-in 6 is a flat surface or an inner arc surface. This configuration ensures that the drive plate 10 is subjected to uniform force, causing the elastic element 11 to generate the same biasing force.

[0040] Of course, the above description is not limiting. In some alternative embodiments, the side of the drive board 10 facing away from the plug-in 6 is an outer arc surface.

[0041] like Figure 3 , Figure 4As shown, the operating member 7 is rotatably mounted on the outer fastener 8, and the operating member 7 has an eccentric portion for cooperating with the drive plate 10. With this configuration, the drive plate 10 cooperates with the operating member 7, rotating the operating member 7 moves the drive plate 10, causing the drive plate 10 to press downward, causing the elastic member 11 to contract, and the drive insert 6 is fixed to the rack structure 4.

[0042] Of course, the above description is not limiting; in some alternative embodiments, the eccentric portion is replaced by a card plate.

[0043] like Figure 3 , Figure 4 As shown, the outer fastener 8 has a mounting groove, the operating member 7 is rotatably disposed within the mounting groove, a rotating shaft 15 is located above the mounting groove, and the operating member 7 moves around the rotating shaft 15. The eccentric portion has a positioning hole 12, and the inner wall of the mounting groove has a positioning member suitable for protrusion. The protruding end of the positioning member is suitable for insertion into the positioning hole 12. With this configuration, when locking the insert 6 and the rack structure 4, the positioning member is inserted into the positioning hole 12 to prevent the elastic member 11 from driving the insert 6 to move.

[0044] Of course, the above description is not limiting. In some alternative embodiments, the mounting groove is a sliding groove, and the operating member 7 is slidably disposed.

[0045] like Figure 3 As shown, the mounting groove has a through hole 13 suitable for inserting a positioning member. With this configuration, when the locking member 5 needs to reach the locked state, the positioning member is inserted into the through hole 13 to fix the positioning member to the positioning hole 12. When the locking member 5 needs to reach the unlocked state, the positioning member is pulled out from the through hole 13 to unlock the positioning member from the positioning hole 12.

[0046] Of course, the above description is not limiting. In some alternative embodiments, the through hole 13 is omitted and a card plate is provided below the operating member 7.

[0047] like Figure 3 As shown, the operating element 7 has an operating handle 14 extending radially outward. This arrangement facilitates operation; specifically, when it is necessary to lock or unlock the plug 6 and the rack structure 4, the operating handle 14 can be rotated.

[0048] Of course, the above description is not limiting, and in some alternative embodiments, the operating handle 14 may be omitted.

[0049] like Figure 2As shown, each of the uprights 1 is connected to at least one second crossbar 3, and each second crossbar 3 is provided with at least one locking element 5; a first crossbar 2 is provided between two second crossbars 3 of the same height between two adjacent uprights 1, and the two ends of the first crossbar 2 are respectively inserted into the two second crossbars 3. This arrangement not only increases the length of the safety railing, but also allows for more precise adjustment of the distance between the first crossbar 2 and the second crossbar 3.

[0050] Of course, the above description is not limiting. In some alternative embodiments, the second crossbar 3 is disposed between the first crossbars 2.

[0051] like Figure 2 As shown, each of the columns 1 has at least two second horizontal bars 3 arranged vertically and parallel to each other. This arrangement increases the force on the columns 1, making the device more stable.

[0052] Of course, the above description is not limiting. In some alternative embodiments, the column 1 is provided with only one second crossbar 3.

[0053] like Figure 1 As shown, the second crossbar 3 is detachably connected to the column 1. Specifically, the column 1 is provided with a U-shaped groove, and the U-shaped groove is provided with bolt holes for fixing to the second crossbar 3. One end of the second crossbar 3 is provided with a small column 1 with bolt holes, which is fixed to the U-shaped groove on the column 1. This arrangement facilitates installation and disassembly.

[0054] Of course, the above description is not limiting. In some alternative embodiments, the second crossbar 3 is welded to the column 1.

[0055] Instructions for use: When the safety railing needs adjustment, pull the positioning piece out of the positioning hole 12, rotate the operating piece 7, the elastic element 11 generates bias pressure, driving the drive plate 10 and the plug 6 to move away from the rack structure 4, so that the plug 6 is unlocked from the rack structure 4, slide the first crossbar 2 in the second crossbar 3, after adjusting to a certain distance, rotate the operating piece 7 again, so that the drive plate 10 presses down, so that the elastic element 11 contracts, driving the plug 6 to fix with the rack structure 4, so that the plug 6 is locked with the rack structure 4, insert the positioning piece into the positioning hole 12, at this time the structure is locked.

[0056] Using this device, the distance between the first crossbar 2 and the second crossbar 3 can be precisely adjusted to achieve stepless adjustment.

[0057] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A retractable safety railing, characterized in that, include: The column (1) has at least two that are arranged opposite to each other; A crossbar is connected between two adjacent columns (1). The crossbar includes a first crossbar (2) and a second crossbar (3) arranged coaxially. The first crossbar (2) is slidably inserted into the second crossbar (3). The first crossbar (2) has a rack structure (4). The locking member (5) is connected to the second crossbar (3). The locking member (5) has a plug (6) and an operating member (7) for driving the plug (6). The locking member (5) locks the rack structure (4) of the first crossbar (2) through the plug (6).

2. The retractable safety railing according to claim 1, characterized in that, The locking member (5) includes: an outer fastener (8) having a through hole (9) for passing through the first crossbar (2) and a channel extending radially to communicate with the through hole (9); The plug (6) is slidably disposed in the channel. One end of the plug (6) is connected to the drive plate (10) outside the channel. An elastic element (11) is connected to the drive plate (10). The elastic element (11) has a biasing force that drives the plug (6) to move away from the rack structure (4) in the unlocking direction.

3. The retractable safety railing according to claim 2, characterized in that, The side of the drive board (10) facing away from the plug-in (6) is a flat surface or an inner arc surface.

4. The retractable safety railing according to claim 2, characterized in that, The operating member (7) is rotatably mounted on the outer fastener (8), and the operating member (7) has an eccentric portion for cooperating with the drive plate (10).

5. The retractable safety railing according to claim 4, characterized in that, The outer fastener (8) has a mounting groove, the operating member (7) is rotatably disposed in the mounting groove, the eccentric part has a positioning hole (12), the inner wall of the mounting groove has a positioning member suitable for protrusion, and the protruding end of the positioning member is suitable for insertion into the positioning hole (12).

6. The retractable safety railing according to claim 5, characterized in that, The mounting groove has a through hole (13) suitable for inserting a positioning element.

7. The retractable safety railing according to claim 4, characterized in that, The operating element (7) has an operating handle (14) that extends radially outward.

8. The retractable safety railing according to any one of claims 1-7, characterized in that, Each of the columns (1) is connected to at least one second crossbar (3), and each second crossbar (3) is provided with at least one locking element (5); A first crossbar (2) is provided between two second crossbars (3) of the same height between two adjacent columns (1), and the two ends of the first crossbar (2) are respectively inserted into the two second crossbars (3).

9. The retractable safety railing according to claim 8, characterized in that, Each of the columns (1) has at least two second crossbars (3) arranged vertically and horizontally at intervals.

10. The retractable safety railing according to claim 8, characterized in that, The second crossbar (3) is detachably plugged into the column (1).

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