Telescopic protective fence
By designing a retractable guardrail, the combination of fixed columns, telescopic frames and movable columns has been solved, and the problem of cumbersome disassembly and assembly of existing guardrails has been quickly adapted to the width and height of the area, and the construction efficiency and flexibility have been improved. , ensuring the stability and safety of the guardrail.
Patent Information
- Application Number
- CN202420763013.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing fixed safety guardrails are complicated to disassemble and install during construction and are inefficient, resulting in large workloads and difficult to quickly adapt to the width and height of different areas.
A telescopic guardrail is designed, through spaced fixed columns and telescopic frames, using the matching of T-shaped grooves and T-shaped blocks, the telescopic linkage mechanism, and the design of movable columns and fasteners. Achieve rapid disassembly and assembly and height adjustment, combined with anti-tilt sensors and removable casters, improves installation efficiency and flexibility.
It achieves rapid protection to adapt to the width and height of different areas, saves workload during construction, improves work efficiency, and reduces space, while ensuring the stability and safety of the guardrail.
Smart Images
Figure CN222295909U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction tools, in particular to a telescopic guardrail. Background Art
[0002] During the construction process of a building project, there are dangerous sources such as reserved construction openings, elevator shaft openings, passage openings, stair openings, floors, roofs, and balcony edges. In order to ensure the safety of construction workers on the construction site, guardrails are generally used on the construction site to ensure the safety of construction workers.
[0003] Standardized safety guardrails are usually used for a long time in construction projects. Bolts are generally used to connect square steel and protective wire mesh to form a guardrail.
[0004] During construction, parts of the guardrails need to be frequently disassembled and assembled. If the above method is used, the disassembly and installation steps are cumbersome, the workload is large, and the efficiency is low. Utility Model Content
[0005] The main purpose of the utility model is to provide a retractable guardrail, aiming to improve the convenience of disassembly and assembly of the guardrail and save human resources.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a retractable guardrail, which comprises:
[0007] A support assembly, the support assembly comprising at least two fixed columns arranged at intervals, each of the fixed columns being detachably mounted on the ground through a fixing structure, and at least one side surface of the fixed column being provided with a first T-shaped groove penetrating the upper end surface of the fixed column along its extension direction; and
[0008] At least one telescopic frame, the telescopic frame is used to be arranged between two adjacent fixed columns, the telescopic frame includes two mounting columns and a scissor-type connecting rod mechanism arranged between the two mounting columns, the two mounting columns are arranged opposite to each other and spaced apart, and a T-block is provided on the side of each mounting column away from the other mounting column, the T-block is used to slide with the first T-slot on the fixed column, and the scissor-type connecting rod mechanism can be telescopically arranged in the horizontal direction to reduce or expand the distance between the two mounting columns.
[0009] In one embodiment, the end of the fixed column away from the ground is provided with a receiving groove arranged along its extension direction;
[0010] The support assembly further comprises at least two movable columns, each of which is arranged corresponding to one of the fixed columns, at least part of the structure of the movable column is accommodated in the receiving groove and is movably arranged relative to the fixed column, the movable column has a receiving state in which it is received in the receiving groove and an expanded state in which part of the structure is exposed outside the receiving groove, at least one side surface of the movable column is provided with a second T-shaped groove penetrating the upper end surface of the movable column along its extension direction, and the second T-shaped groove is used for sliding cooperation with the T-shaped block of the mounting column;
[0011] The telescopic guardrail includes at least two telescopic frames, one of which is arranged between two adjacent fixed columns, and the other telescopic frame is arranged between two adjacent movable columns.
[0012] In one embodiment, the two opposite sides of the fixed column different from the first T-slot are spaced apart along the extension direction thereof with a plurality of first through holes, the first through holes being connected to the receiving groove; the side of the movable column different from the first T-slot is spaced apart along the extension direction thereof with a plurality of second through holes;
[0013] The support assembly also includes at least two snap-fit parts, each of which is arranged corresponding to one of the fixed columns, and the snap-fit parts include a first clamping arm, a second clamping arm, and a rotating pin rotatably connecting the first clamping arm and the second clamping arm, and the first clamping arm is provided with a first protrusion for clamping with the first through hole at one end away from the second clamping arm, and the second clamping arm is provided with a second protrusion at one end away from the first clamping arm, and the second protrusion is used to penetrate the first through hole to extend into the receiving groove and be clamped with one of the second through holes.
[0014] In one embodiment, the movable column is provided with a slide groove, and the inner wall of the receiving groove is provided with a slide rail slidably matched with the slide groove, and the slide rail is arranged along the extension direction of the fixed column.
[0015] In one embodiment, the fixed column includes a support rod and a fixed seat, the fixed seat is arranged at the bottom of the support rod, the support rod is provided with the first T-slot, and the fixed seat is provided with a positioning hole. The fixing structure includes a first threaded shaft spirally connected to the positioning hole, and the conical tip of the first threaded shaft is used to insert into the ground.
[0016] In one embodiment, a mounting hole is formed at the head of the first threaded shaft in the length direction of the first threaded shaft;
[0017] The fixing structure also includes a second threaded shaft screwed to the mounting hole, a limiting portion being provided on the second threaded shaft, the limiting portion passing through the side wall of the first threaded shaft to be exposed from the first threaded shaft, and the limiting portion being used to insert the second threaded shaft into the ground when being screwed into the first threaded shaft.
[0018] In one embodiment, the fixing seat is provided with four fixing holes, each of the fixing seats is fixed to the ground via four fixing structures, and the four fixing structures are arranged corresponding to the four fixing holes.
[0019] In one embodiment, the retractable guardrail also includes an anti-dump sensor and an alarm electrically connected to the anti-dump sensor, the anti-dump sensor is arranged on the fixed column, and the alarm is arranged at an end of the fixed column away from the ground, and the alarm is used to receive the sensing signal emitted by the anti-dump sensor and issue an alarm.
[0020] In one embodiment, each of the fixed columns is further provided with a detachable caster.
[0021] In one embodiment, the telescopic frame includes a plurality of connecting rod groups hinged to each other.
[0022] The technical solution of the utility model can adapt to the width of the area to be protected by adjusting the distance between the two fixed columns and the telescopic length of the scissor-type connecting rod mechanism of the telescopic frame. During installation, it is only necessary to determine the installation position of the fixed column first, and then use the fixed structure to install the fixed column on the ground. The telescopic frame can be stably installed on the fixed column through the plug-in cooperation of the first T-slot of the fixed column and the T-block of the telescopic frame. On the one hand, compared with the prior art, the telescopic guardrail provided by the utility model no longer requires complicated splicing to form, which can save subsequent work processes and improve work efficiency. On the other hand, the detachable fixing structure can facilitate the adjustment of the installation position of the fixed column, and the fixed column and the telescopic frame can be stored separately to reduce the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 A schematic structural diagram of an embodiment of a retractable guardrail provided by the utility model;
[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0026] Figure 3 A schematic structural diagram of an embodiment of a retractable guardrail provided by the utility model;
[0027] Figure 4 A structural schematic diagram of another embodiment of the retractable guardrail provided by the utility model;
[0028] Figure 5 This is a schematic structural diagram of another embodiment of the retractable guardrail provided by the utility model.
[0029] Description of Figure Numbers:
[0030] 100. Retractable guardrail; 1. Support assembly; 11. Fixed column; 111. Support rod; 112. Fixed seat; 12. Fixed structure; 121. First threaded shaft; 122. Second threaded shaft; 123. Limiting portion; 13. Movable column; 14. Fastening member; 141. First clamping arm; 142. Second clamping arm; 1421. Second protrusion; 143. Rotating pin; 2. Telescopic frame; 21. Mounting column; 22. Scissor-type connecting rod mechanism; 3. Alarm.
[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0035] The utility model provides a retractable guardrail 100 .
[0036] See also Figures 1 to 5 In one embodiment of the utility model, the retractable guardrail 100 includes a support assembly 1 and at least one retractable frame 2, the support assembly 1 includes at least two fixed columns 11 arranged at intervals, each fixed column 11 is detachably arranged on the ground through a fixing structure 12, and at least one side surface of the fixed column 11 is provided with a first T-shaped slot penetrating the upper end surface of the fixed column 11 along its extension direction; the retractable frame 2 is used to be arranged between two adjacent fixed columns 11, the retractable frame 2 includes two mounting columns 21 and a scissor-type connecting rod mechanism 22 arranged between the two mounting columns 21, the two mounting columns 21 are arranged oppositely and at intervals, and a T-block is provided on the side of each mounting column 21 away from the other mounting column 21, the T-block is used to slide with the first T-shaped slot on the fixed column 11, and the scissor-type connecting rod mechanism 22 is retractably arranged in the horizontal direction to reduce or expand the distance between the two mounting columns 21.
[0037] The technical solution of the present invention can adapt to the width of the area to be protected by adjusting the distance between the two fixed columns 11 and the telescopic length of the scissor-type connecting rod mechanism 22 of the telescopic frame 2. During installation, it is only necessary to first determine the installation position of the fixed column 11, and then use the fixed structure 12 to install the fixed column 11 on the ground. The telescopic frame 2 can be stably installed on the fixed column 11 through the plug-in cooperation of the first T-slot of the fixed column 11 and the T-block of the telescopic frame 2. On the one hand, compared with the prior art, the telescopic guardrail 100 provided by the present invention no longer requires complicated splicing to form, which can save subsequent work processes and improve work efficiency. On the other hand, the detachable fixed structure 12 can facilitate the adjustment of the installation position of the fixed column 11, and the fixed column 11 and the telescopic frame 2 can be stored separately to reduce the occupied space.
[0038] It should be noted that the first T-slot can be extended downward as far as possible so that the distance between the telescopic frame 2 and the ground is kept within 5 cm, so as to avoid safety hazards caused by excessive protection gaps. In addition, the fixed column 11 is usually a long square rod, so the first T-slot can be set on the two opposite sides of the fixed column 11, or on the two adjacent sides of the fixed column 11, so that the structure of the fixed column can be adapted to the shape of different protection areas. Of course, when necessary, the fixed column 11 can also be provided with more than two first T-slots to install more than two telescopic frames 2, and two adjacent fixed columns 11 need to be connected through a telescopic frame 2.
[0039] Furthermore, considering that a higher guardrail is needed in certain scenarios to provide better warning and protection, in one embodiment of the utility model, a receiving groove is provided at one end of the fixed column 11 away from the ground along its extension direction; the support assembly 1 also includes at least two movable columns 13, each movable column 13 is provided corresponding to a fixed column 11, at least part of the structure of the movable column 13 is accommodated in the receiving groove and is movably provided relative to the fixed column 11, the movable column 13 has a receiving state in which it is accommodated in the receiving groove and a deployed state in which part of the structure is exposed outside the receiving groove, at least one side surface of the movable column 13 is provided with a second T-slot that passes through the upper end surface of the movable column 13 along its extension direction, and the second T-slot is used to slide with the T-block of the mounting column 21; the retractable guardrail 100 includes at least two telescopic frames 2, one of which is provided between two adjacent fixed columns 11, and the other telescopic frame 2 is provided between two adjacent movable columns 13. In this way, the two movable columns 13 can be pulled out from the fixed columns 11, and then the telescopic frame 2 can be installed between the two movable columns 13, so that the height of the guardrail can be adjusted conveniently and quickly.
[0040] In order to facilitate flexible fixing of the fixed column 11 and the movable column 13, in one embodiment of the utility model, the two opposite sides of the fixed column 11 that are different from the first T-slot are both provided with a plurality of first through holes spaced apart along the extension direction thereof, and the first through holes are connected to the receiving groove; the side of the movable column 13 that is different from the first T-slot is provided with a plurality of second through holes spaced apart along the extension direction thereof; the support assembly 1 also includes at least two fastening members 14, each fastening member 14 is arranged corresponding to a fixed column 11, the fastening member 14 includes a first clamping arm 141, a second clamping arm 142 and a rotating pin 143 rotatably connecting the first clamping arm 141 and the second clamping arm 142, an end of the first clamping arm 141 away from the second clamping arm 142 is provided with a first protrusion for clamping with the first through hole, and an end of the second clamping arm 142 away from the first clamping arm 141 is provided with a second protrusion 1421, and the second protrusion 1421 is used to penetrate the first through hole to extend into the receiving groove and be correspondingly clamped with a second through hole. By adjusting the connection state between the first clamping arm 141 and the second clamping arm 142 of the buckle 14 and the fixed column 11 and the movable column 13, the buckle 14 can be unlocked and locked. When the height needs to be adjusted, the staff only needs to open the first clamping arm 141 and the second clamping arm 142 of the buckle 14 and pull the movable column 13 upwards to complete the adjustment of the extension amount of the movable column 13. The adjustment operation is convenient and efficient.
[0041] In order to facilitate the smooth sliding of the movable column 13, in one embodiment of the utility model, the movable column 13 is provided with a slide groove, and a slide rail that slides with the slide groove is provided on the inner wall of the receiving groove, and the slide rail is arranged along the extension direction of the fixed column 11. The cooperation of the slide groove and the slide rail can reduce the friction force, so that the movement of the movable column 13 is smoother, and the stable sliding of the movable column 13 on the fixed column 11 can be achieved. At the same time, the cooperation of the slide rail and the slide groove can also play a certain guiding role, improving the operating feel and operating stability of the staff.
[0042] During the normal use of the guardrail, it may occasionally be hit or in strong winds, causing the guardrail to topple over, thereby affecting the protective effect of the guardrail. Therefore, the fixing structure 12 must be stable and reliable. In one embodiment of the utility model, the fixing column 11 includes a support rod 111 and a fixing seat 112. The fixing seat 112 is arranged at the bottom of the support rod 111. The support rod 111 is provided with a first T-slot, and the fixing seat 112 is provided with a positioning hole. The fixing structure 12 includes a first threaded shaft 121 that is spirally connected to the positioning hole, and the conical tip of the first threaded shaft 121 is used to insert into the ground. The first threaded shaft 121 can be firmly inserted into the ground, so that the fixing column 11 is not easy to topple over when hit, and it is easy to know that in order to enable the first threaded shaft 121 to be smoothly inserted into the ground, the conical tip of the first threaded shaft 121 gradually decreases in cross-sectional area from top to bottom, so as to facilitate screwing into rock or cement ground.
[0043] In order to further enhance the fixing ability of the fixing structure 12, further, in one embodiment of the utility model, a mounting hole is opened at the head of the first threaded shaft 121 in the length direction of the first threaded shaft 121; the fixing structure 12 also includes a second threaded shaft 122 screwed to the mounting hole, and a limiting portion 123 is provided on the second threaded shaft 122. The limiting portion 123 passes through the side wall of the first threaded shaft 121 to be exposed on the first threaded shaft 121, and the limiting portion 123 is used to insert the second threaded shaft 122 into the ground when it is screwed into the first threaded shaft 121. During installation, first fix the first threaded shaft 121, and then tighten the second threaded shaft 122 downward so that the limiting portion 123 located at the lower end of the second threaded shaft 122 extends outward. The limiting portion 123 can be a metal sheet or metal strip with a certain toughness and a pointed end. In this way, the limiting portion 123 can penetrate into the soil on both sides or the ground that is not too hard to limit the position of the first threaded shaft 121, thereby also improving the anti-dumping ability of the fixed column 11.
[0044] Furthermore, in one embodiment of the present invention, the fixing seat 112 is provided with four fixing holes, and each fixing seat 112 is fixed to the ground through four fixing structures 12, and the four fixing structures 12 are provided corresponding to the four fixing holes. This design helps to further improve the stability and firmness of the fixing pillar, ensuring that it will not move, shake or fall during use.
[0045] In one embodiment of the utility model, the retractable guardrail 100 further includes an anti-dumping sensor and an alarm 3 electrically connected to the anti-dumping sensor, the anti-dumping sensor is arranged on the fixed column 11, the alarm 3 is arranged at one end of the fixed column 11 away from the ground, and the alarm 3 is used to receive the sensing signal sent by the anti-dumping sensor and send out an alarm. Through the combination of the anti-dumping sensor and the alarm 3, an alarm can be sent out in time when the guardrail is at risk of dumping, reminding pedestrians and vehicles passing by to pay attention to safety, thereby providing effective processing time for the staff's inspection and maintenance.
[0046] In one embodiment of the utility model, each fixed column 11 is also provided with a detachable caster. This design makes the guardrail as a whole mobile, convenient for moving or adjusting the position when needed, and the caster can be easily removed when it needs to be fixed, ensuring the stability and safety of the guardrail, while also further improving the convenience and versatility of the guardrail.
[0047] In one embodiment of the utility model, the telescopic frame 2 includes a plurality of mutually hinged connecting rod groups. The plurality of mutually hinged connecting rod groups can be installed in advance, and have strong flexibility and adjustability when used, so that the guardrail is more suitable for various environments and work requirements.
[0048] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A retractable guardrail, characterized in that: The retractable guardrail comprises: A support assembly, the support assembly comprising at least two fixed columns arranged at intervals, each of the fixed columns being detachably mounted on the ground through a fixing structure, and at least one side surface of the fixed column being provided with a first T-shaped groove penetrating the upper end surface of the fixed column along its extension direction; and At least one telescopic frame, the telescopic frame is used to be arranged between two adjacent fixed columns, the telescopic frame includes two mounting columns and a scissor-type connecting rod mechanism arranged between the two mounting columns, the two mounting columns are arranged opposite to each other and spaced apart, and a T-block is provided on the side of each mounting column away from the other mounting column, the T-block is used to slide with the first T-slot on the fixed column, and the scissor-type connecting rod mechanism can be telescopically arranged in the horizontal direction to reduce or expand the distance between the two mounting columns.
2. The retractable guardrail according to claim 1, characterized in that: The end of the fixed column away from the ground is provided with a receiving groove arranged along its extension direction; The support assembly further comprises at least two movable columns, each of which is arranged corresponding to one of the fixed columns, at least part of the structure of the movable column is accommodated in the receiving groove and is movably arranged relative to the fixed column, the movable column has a receiving state in which it is received in the receiving groove and an expanded state in which part of the structure is exposed outside the receiving groove, at least one side surface of the movable column is provided with a second T-shaped groove penetrating the upper end surface of the movable column along its extension direction, and the second T-shaped groove is used for sliding cooperation with the T-shaped block of the mounting column; The telescopic guardrail includes at least two telescopic frames, one of which is arranged between two adjacent fixed columns, and the other telescopic frame is arranged between two adjacent movable columns.
3. The retractable guardrail according to claim 2, characterized in that: The two opposite sides of the fixed column different from the first T-slot are both provided with a plurality of first through holes spaced apart along the extension direction thereof, and the first through holes are connected to the receiving groove; the side of the movable column different from the first T-slot is provided with a plurality of second through holes spaced apart along the extension direction thereof; The support assembly also includes at least two snap-fit parts, each of which is arranged corresponding to one of the fixed columns, and the snap-fit parts include a first clamping arm, a second clamping arm, and a rotating pin rotatably connecting the first clamping arm and the second clamping arm, and the first clamping arm is provided with a first protrusion for clamping with the first through hole at one end away from the second clamping arm, and the second clamping arm is provided with a second protrusion at one end away from the first clamping arm, and the second protrusion is used to penetrate the first through hole to extend into the receiving groove and be clamped with one of the second through holes.
4. The retractable guardrail according to claim 2, characterized in that: The movable column is provided with a slide groove, and the inner wall of the receiving groove is provided with a slide rail slidably matched with the slide groove, and the slide rail is arranged along the extension direction of the fixed column.
5. The retractable guardrail according to claim 1, characterized in that: The fixed column includes a support rod and a fixed seat, the support rod is provided with the first T-slot, the fixed seat is arranged at the bottom of the support rod, and the fixed seat is provided with a positioning hole. The fixing structure includes a first threaded shaft spirally connected to the positioning hole, and the conical tip of the first threaded shaft is used to insert into the ground.
6. The retractable guardrail according to claim 5, characterized in that: A mounting hole is formed at the head of the first threaded shaft in the length direction of the first threaded shaft; The fixing structure also includes a second threaded shaft screwed to the mounting hole, a limiting portion being provided on the second threaded shaft, the limiting portion passing through the side wall of the first threaded shaft to be exposed from the first threaded shaft, and the limiting portion being used to insert the second threaded shaft into the ground when being screwed into the first threaded shaft.
7. The retractable guardrail according to claim 6, characterized in that: The fixing seat is provided with four fixing holes, and each of the fixing seats is fixed to the ground through four fixing structures, and the four fixing structures are arranged corresponding to the four fixing holes.
8. The retractable guardrail according to claim 1, characterized in that: The retractable guardrail also includes an anti-dumping sensor and an alarm electrically connected to the anti-dumping sensor. The anti-dumping sensor is arranged on the fixed column, and the alarm is arranged at one end of the fixed column away from the ground. The alarm is used to receive the sensing signal emitted by the anti-dumping sensor and issue an alarm.
9. The retractable guardrail according to any one of claims 1 to 8, characterized in that: Each of the fixed columns is also provided with a detachable castor.
10. The retractable guardrail according to any one of claims 1 to 8, characterized in that: The telescopic frame comprises a plurality of connecting rod groups hinged to each other.