Push-pull type fence device

Abstract

The utility model discloses a push-pull type fence device, which belongs to the technical field of road construction and comprises a plurality of push-pull type fence units and fence supports, each push-pull type fence unit comprises a fixed fence and a movable fence which are in butt joint with the adjacent fence supports, an upper bending baffle is fixed at the upper end of each fixed fence, and a lower bending baffle is fixed at the lower end of each movable fence. A lower bending baffle is fixed to the lower end of the fixed baffle, the upper bending baffle and the lower bending baffle are oppositely arranged, and an upper sliding way and a lower sliding way for the movable fence to transversely move are formed between the upper bending baffle and the fixed fence and between the lower bending baffle and the fixed fence respectively. The fixed fence is provided with a limiting assembly used for limiting movement of the movable fence. The number and the size of the fence units can be correspondingly adjusted according to the size of a road, so that the fence units fully surround operation and a safe buffer area, safe and efficient engineering construction is guaranteed, the carrying and adjusting workload of workers is reduced, and the engineering progress is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to a push-pull type enclosure device. Background Technology

[0002] During the construction of municipal roads, continuous and enclosed barriers need to be set up at the edge of the construction area as required to effectively isolate the work and safety buffer zone from the road traffic area, provide a relatively safe working environment for workers, reduce the interference of external factors on the construction project, and ensure the efficiency and quality of the construction project.

[0003] Traditional prefabricated fencing, with its uniform size and specifications, often fails to meet the required closure dimensions of roads during actual construction. This results in fencing extending beyond the road surface or failing to completely enclose the area, necessitating repeated manual adjustments. Without these adjustments, simply using flexible bollards creates unsealed gaps at the work site, posing safety hazards and hindering safe operations. Furthermore, it can cause sand and dust to leak outside the work area, negatively impacting green and civilized road construction. Additionally, once fully enclosed, temporary access to the work area and safety buffer zone requires the temporary removal of fencing sections. This adjustment and removal work is entirely manual, labor-intensive, time-consuming, and carries the risk of collisions and impacts that could accelerate fence damage. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a push-pull type enclosure device. The size of the enclosure unit can be adjusted according to the road dimensions to fully enclose the work and safety buffer zone, ensuring safe, efficient, and green construction of the project, reducing the workload of workers in handling and adjusting the enclosure, and ensuring the progress of the project.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A push-pull fencing device includes multiple push-pull fencing units and fencing brackets for connecting two adjacent push-pull fencing units. Each push-pull fencing unit includes a fixed fencing and a movable fencing that are connected to the adjacent fencing brackets. The upper end of the fixed fencing is fixed with an upper bent baffle, and the lower end of the fixed baffle is fixed with a lower bent baffle. The upper bent baffle and the lower bent baffle are arranged opposite to each other, and an upper slide rail and a lower slide rail are formed between the upper bent baffle and the fixed fencing, and between the lower bent baffle and the fixed fencing, respectively, for the movable fencing to move laterally. The fixed fencing is provided with a limiting component for restricting the movement of the movable fencing. The fencing device is configured as multiple sliding fencing units. The length of each unit is adjusted by moving the movable fencing on the fixed fencing, thus adapting to situations where the work and safety buffer zones involve the road edge. During installation, limiting components ensure the connection stability of the fencing device, enabling it to fully enclose the work and safety buffer zones and ensuring safe, efficient, and environmentally friendly construction. When workers need to temporarily enter or exit the work and safety buffer zones, the limiting components can be removed and the movable fencing at the desired location can be moved, significantly reducing the workload of workers in handling and adjusting the fencing and ensuring project progress.

[0007] The limiting component includes an upper limiting component located in the upper slide rail and a lower limiting component located in the lower slide rail.

[0008] Both the fixed fence and the movable fence consist of a frame body and baffles fixed inside the frame body. The fence support has a U-shaped groove that matches the outside of the frame body.

[0009] Multiple rollers are installed along the length of the sliding track. These rollers are rotatably connected to the vertical end of the lower bending baffle and the fixed barrier via roller shafts. The lower limiting component is a limiting tenon, the lower end of which engages with the adjacent roller through a clearance fit, and the upper end of which abuts against the outer side of the fixed barrier. The rollers within the sliding track roll in contact with the lower end of the movable barrier to ensure smooth movement, while the limiting tenons effectively limit and stop the movable barrier through a clearance fit with the rollers, ensuring ease of operation.

[0010] The upper limit component is a positioning pin. The upper end of the movable enclosure has multiple adjustment holes along its length. The upper bending baffle has a positioning hole. The positioning pin passes through the positioning hole and connects to the corresponding adjustment hole.

[0011] A T-shaped groove is formed at the position opposite to the vertical end of the fixed enclosure and the lower bending baffle. One end of the roller is formed with a limiting head that slides in cooperation with the T-shaped groove, and the other end of the roller passes through the vertical end of the lower bending baffle and is connected to a nut.

[0012] The U-shaped groove of the fence bracket, which mates with the movable fence, has a stepped portion that is flush with the upper surface of the roller. The stepped portion provides support for the movable fence to move out of the fixed fence section, thereby ensuring the stability of the push-pull fence unit.

[0013] The stepped portion has a first outer arc surface facing the movable fence, and the bottom of the frame body of the movable fence has a second outer arc surface facing the U-shaped groove. When the frame body of the movable fence and the U-shaped groove are connected, the first and second outer arc surfaces can effectively reduce the wear caused by collision between the bottom of the frame body and the stepped portion, ensuring the service life of the fence.

[0014] The width between the intersection of the first outer arc surface and the step portion and the bottom of the U-shaped groove is greater than the width of the frame body corresponding to the second outer arc surface.

[0015] The lower end of the fence support is fixed with a fence base, and the fence base and the fence support are connected by a diagonal brace.

[0016] This utility model has the following beneficial effects:

[0017] This utility model sets up a fence device with multiple push-pull fence units. The length of each fence unit is adjusted by moving the movable fence on the fixed fence, thereby adapting to situations where the work and safety buffer zone involves the edge of the road. This allows the device to fully protect the work and safety buffer zone, increasing its applicability, aesthetics, and safety. When workers need to temporarily enter or exit the work and safety buffer zone, they can simply remove the limiting components and move the movable fence to the desired location, greatly reducing the workload of workers in handling and adjusting the fence, and ensuring the progress of the project. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the push-pull enclosure unit in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fixed enclosure in this utility model;

[0022] Figure 4 for Figure 2 A partial cross-sectional view along the longitudinal axis;

[0023] Figure 5 for Figure 2 A magnified view of part A in the image;

[0024] Figure 6 for Figure 3 A magnified view of part B in the image;

[0025] Figure 7 for Figure 4 A magnified view of part C.

[0026] 1. Work and safety buffer zone; 2. Push-pull enclosure unit; 201. Fixed enclosure; 202. Movable enclosure; 203. Frame main body; 204. Baffle; 205. Adjustment hole; 206. T-slot; 3. Enclosure bracket; 301. U-slot; 302. Enclosure base; 303. Diagonal bar; 304. Step section; 4. Upper bending plate; 401. Positioning hole; 5. Lower bending plate; 6. Positioning pin; 7. Limiting tenon; 8. Roller; 801. Roller shaft; 802. Limiting head; 803. Nut; 9. First outer arc surface; 10. Second outer arc surface. Detailed Implementation

[0027] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figure 1 As shown, this utility model provides a push-pull fencing device, including multiple push-pull fencing units 2 and fencing brackets 3 for connecting two adjacent push-pull fencing units 2. The multiple push-pull fencing units 2 surround each other, forming a work and safety buffer zone 1 in the middle, as shown. Figure 2 As shown, the push-pull enclosure unit 2 includes a fixed enclosure 201 and a movable enclosure 202 that are connected to the adjacent enclosure bracket 3, as shown in the figure. Figure 3 As shown, an upper bending baffle 204 is fixed to the upper end of the fixed fence 201, and a lower bending baffle 204 is fixed to the lower end of the fixed baffle 204. The upper bending baffle 204 and the lower bending baffle 204 are arranged opposite to each other, and an upper slide rail and a lower slide rail are formed between the upper bending baffle 204 and the fixed fence 201, and between the lower bending baffle 204 and the fixed fence 201, respectively, for the movable fence 202 to move laterally. The upper end and the lower end of the movable fence 202 are located in the upper slide rail and the lower slide rail, respectively, and move along the length direction of the fixed fence 201. The movable fence 202 is adjusted by moving on the fixed fence 201. The length of each enclosure unit is adapted to the situation where the work and safety buffer zone 1 involves the edge of the road. At the same time, the fixed enclosure 201 is equipped with a limiting component to restrict the movement of the movable enclosure 202, thereby ensuring the stability of each push-pull enclosure unit 2 after being connected by the enclosure bracket 3, so that it can fully protect the work and safety buffer zone 1, ensuring the safe, efficient and green construction of the project. When workers need to temporarily enter and exit the work and safety buffer zone 1, they can remove the limiting component and move the movable enclosure 202 to the desired position, thereby greatly reducing the workload of workers in carrying and adjusting, and ensuring the progress of the project.

[0032] More preferably, the limiting component includes an upper limiting member located in the upper slide rail and a lower limiting member located in the lower slide rail.

[0033] like Figure 2As shown, both the fixed fence 201 and the movable fence 202 are composed of a frame body 203 and baffles 204 fixed inside the frame body 203. More preferably, the frame body 203 is a frame made of four aluminum profiles. The fence support 3 has a U-shaped groove 301 that matches the outside of the frame body 203. The outside of the fixed fence 201 and the movable fence 202 are connected to the U-shaped grooves 301 on the adjacent fence support 3 to complete the connection between each push-pull fence unit 2. More preferably, a fence base 302 is fixed at the lower end of the fence support 3. The fence base 302 is connected to the fence support 3 by a diagonal bar 303. Heavy objects can be placed on the fence base 302 to provide lateral support for each push-pull fence unit 2 and prevent it from tipping over.

[0034] like Figure 4 and Figure 6 As shown, multiple rollers 8 are arranged along the length of the sliding track. These rollers 8 are rotatably connected to the vertical end of the lower bending baffle 204 and the frame body 203 of the fixed enclosure 201 via roller shafts 801. The lower limiting component is a limiting tenon 7, the lower end of which is fitted with an adjacent roller 8 with a clearance fit, and the upper end of which abuts against the outer side of the frame body 203 of the fixed enclosure 201. The rollers 8 are arranged in the sliding track to roll in contact with the frame body 203 of the movable enclosure 202, ensuring smooth movement of the movable enclosure 202. The limiting tenon 7, with its clearance fit with the rollers 8, effectively limits and stops the movable enclosure 202, ensuring convenient operation.

[0035] like Figure 5 As shown, the upper limit component is a positioning pin 6. The upper end of the frame body 203 of the movable enclosure 202 is provided with multiple adjustment holes 205 along the length direction. The upper bending baffle 204 is provided with a positioning hole 401. The positioning pin 6 passes through the positioning hole 401 and is connected to the corresponding adjustment hole 205.

[0036] More preferably, the number of adjusting holes 205 is the same as the number of gaps between rollers 8 (i.e., the number of rollers 8 N-1), so that the positioning pin 6 corresponds to the positioning point at the upper end of the movable enclosure 202 and the limiting latch 7 corresponds to the positioning point at the lower end of the movable enclosure 202, thereby stabilizing the movable enclosure 202 in the position to be adjusted on the fixed enclosure 201. Preferably, multiple positioning holes 401 can be provided along the length direction of the upper bending plate 4, and the number of adjusting holes 205 between every two positioning holes 401 is 4-5. As the portion of the movable enclosure 202 within the fixed enclosure 201 increases, the connection effect between the upper end of the movable enclosure 202 and the upper bending plate 4 can be ensured by adding positioning pins 6 at the positions of the corresponding positioning holes 401.

[0037] To further ensure the connection effect, in other embodiments, the upper end of the positioning pin 6 has a lifting ring portion, the lower end of the positioning pin 6 has an external thread portion, and the adjusting hole 205 is a threaded hole that mates with the external thread portion. When disassembling the positioning pin 6, tools such as pry bars can be inserted into the lifting ring portion to rotate the positioning pin 6, thereby separating the external thread portion and the threaded hole.

[0038] like Figure 6 As shown, in order to facilitate the installation of the roller 8, a T-slot 206 is formed on the frame body 203 of the fixed enclosure 201 and the vertical end of the lower bending baffle 204. One end of the roller 801 is formed with a limiting head 802 that slides in cooperation with the T-slot 206, and the other end of the roller 801 passes through the vertical end of the lower bending baffle 204 and is connected to the nut 803.

[0039] like Figure 7 As shown, the U-shaped groove 301 that cooperates with the movable fence 202 is fixed with a step portion 304 that is flush with the upper surface of the roller 8, so as to provide support for the movable fence 202 to move out of the fixed fence 201, thereby ensuring the stability of the push-pull fence unit 2.

[0040] More preferably, the step portion 304 has a first outer arc surface 9 on the side facing the movable fence 202, and the bottom of the frame body 203 of the movable fence 202 has a second outer arc surface 10 on the position facing the U-shaped groove 301. When the frame body 203 of the movable fence 202 and the U-shaped groove 301 are connected, the first outer arc surface 9 and the second outer arc surface 10 can effectively reduce the wear caused by the collision between the bottom of the frame body 203 and the step portion 304, and ensure the service life of the fence.

[0041] The width between the intersection of the first outer arc surface 9 and the step portion 304 and the bottom of the U-shaped groove 301 is greater than the width of the frame body 203 corresponding to the second outer arc surface 10, so that the frame body 203 of the movable enclosure 202 can be stably placed on the step portion 304.

[0042] When implementing the above technical solution, first determine the dimensions of the work and safety buffer zone 1. Based on these dimensions, select the required number of push-pull enclosure units 2, such as... Figure 1As shown, the sliding enclosure units 2 are arranged sequentially. The sliding enclosure units 2 on the same straight line are inserted into the U-shaped grooves 301 of the enclosure bracket 3 in pairs. During installation, the sliding enclosure units 2 at non-road edges can be connected in a way that maximizes their size, i.e., the first adjustment hole 205 at the upper end of the movable enclosure 202 is aligned with the positioning hole 401, and the lower end of the movable enclosure 202 is located on the first roller 8. The sliding enclosure units 2 at the road edge are then adjusted in size as needed to complete the enclosure of the work and safety buffer zone 1, effectively preventing pedestrians and vehicles from accidentally entering the work and safety buffer zone 1, reducing the risk of safety accidents, and minimizing the negative impact of construction pollution on the surrounding environment, thus meeting the requirements of green and civilized construction. Figure 1 As shown, during installation, the side of the fixed fence 201 with the lower bending plate 5 and the upper bending plate 4 faces the work and safety buffer area 1. When workers need to temporarily enter and exit the work and safety buffer area 1, the workers in the work and safety buffer area 1 remove the limiting clips 7 and positioning pins 6 on the push-pull fence unit 2 at the corresponding position, and pull open the movable fence 202 to form a temporary entrance and exit. There is no need to move or dismantle the entire fence unit, which reduces the amount of manual handling and adjustment work and ensures the progress of the project.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A push-pull type enclosure device, characterized in that, The device includes multiple push-pull fencing units and fencing brackets for connecting two adjacent push-pull fencing units. Each push-pull fencing unit includes a fixed fencing and a movable fencing that are connected to the adjacent fencing brackets. The upper end of the fixed fencing is fixed with an upper bent baffle, and the lower end of the fixed baffle is fixed with a lower bent baffle. The upper bent baffle and the lower bent baffle are arranged opposite to each other, and an upper slide rail and a lower slide rail are formed between the upper bent baffle and the fixed fencing, respectively, for the movable fencing to move laterally. The fixed fencing is provided with a limiting component for restricting the movement of the movable fencing.

2. A push-pull type enclosure device according to claim 1, characterized in that, The limiting component includes an upper limiting component located in the upper slide rail and a lower limiting component located in the lower slide rail.

3. A push-pull enclosure device according to claim 2, characterized in that, Multiple rollers are provided along the length of the sliding track. The rollers are rotatably connected to the vertical end of the lower bending baffle and the fixed enclosure via roller shafts. The lower limiting member is a limiting tenon. The lower end of the limiting tenon is inserted into the gap between the adjacent rollers, and the upper end of the limiting tenon abuts against the outer side of the fixed enclosure.

4. A push-pull enclosure device according to claim 2 or 3, characterized in that, The upper limit component is a positioning pin. The upper end of the movable enclosure has multiple adjustment holes along its length. The upper bending baffle has a positioning hole. The positioning pin passes through the positioning hole and connects to the corresponding adjustment hole.

5. A push-pull enclosure device according to claim 3, characterized in that, A T-shaped groove is formed at the position opposite to the vertical end of the fixed enclosure and the lower bending baffle. One end of the roller is formed with a limiting head that slides in cooperation with the T-shaped groove, and the other end of the roller passes through the vertical end of the lower bending baffle and is connected to a nut.

6. A push-pull enclosure device according to claim 3, characterized in that, Both the fixed fence and the movable fence consist of a frame body and baffles fixed inside the frame body. The fence support has a U-shaped groove that matches the outside of the frame body.

7. A push-pull enclosure device according to claim 6, characterized in that, The U-shaped groove of the enclosure bracket, which mates with the movable enclosure, has a stepped section that is flush with the upper surface of the roller.

8. A push-pull enclosure device according to claim 7, characterized in that, The step portion has a first outer arc surface on the side facing the movable fence, and the bottom of the frame body of the movable fence has a second outer arc surface at the position facing the U-shaped groove.

9. A push-pull type enclosure device according to claim 8, characterized in that, The width between the intersection of the first outer arc surface and the step portion and the bottom of the U-shaped groove is greater than the width of the frame body corresponding to the second outer arc surface.

10. A push-pull enclosure device according to claim 1, 2, or 6, characterized in that, The lower end of the fence support is fixed with a fence base, and the fence base and the fence support are connected by a diagonal brace.

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