Temporary safety protection fence for road maintenance

Abstract

The utility model discloses a temporary safety protection fence for road maintenance. The temporary safety protection fence comprises a first fence and a second fence, steel bar grids are arranged on the first fence and the second fence; locking mechanisms, inserting grooves and through grooves are arranged on the two sides of the first fence, teeth and guide shafts are arranged on the two sides of the second fence, the guide shafts are arranged in the inserting grooves, the locking mechanisms are arranged at the through grooves, and the locking mechanisms are matched with the teeth to lock the first fence and the second fence; the locking mechanism comprises a fixing frame and a limiting shaft, the fixing frame is fixedly connected with the first fence, the limiting shaft is arranged in the through groove and slidably connected with the fixing frame, a key block and a supporting arm are arranged on the limiting shaft, a limiting plate and insertion teeth are arranged at one end of the limiting shaft, a spring is connected to the limiting shaft in a sleeving mode, the spring abuts against the limiting plate and the fixing frame, and the insertion teeth are pushed by the spring to be matched with the teeth for locking. The key block prevents the limiting shaft from rotating. The height of the fence can be adjusted so that the protection area can be adjusted, and meanwhile storage is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, and in particular relates to a temporary safety protection enclosure for road maintenance. Background Art

[0002] When repairing a road, it may cause rock collapse and splashing of stones, which may cause damage to pedestrians or vehicles. For warning and protection purposes, fences are usually set up at the repair site to prevent pedestrians from entering the construction site and ensure the safety of construction, pedestrians and vehicles.

[0003] After searching, the prior art announcement number CN 220539386 U is a road construction safety protection structure, the guardrail can be bent around the construction site according to actual use requirements, so that the guardrail can be used to fence multiple sides of the construction site, thereby reducing the number of guardrails used, and finally the practicality of the guardrail is high. At the same time, the enclosure protection net can be rolled up into the installation base pole by the rolling device, thereby reducing the volume of the guardrail, thereby facilitating the storage and transportation of the guardrail; however, this solution is only convenient for storage, but cannot be adjusted in height. If the construction force is large or there are many flying stones during road construction, the flying height is large, it is impossible to block and protect the stones more comprehensively;

[0004] After searching, the prior art announcement number is CN 215671460 U, which is a road construction safety guardrail. The support sleeve moves on the movable column to adjust the protection height of the support sleeve to a specified height for protection. However, this solution uses a movable rod, a connecting shaft, and a rotating shaft for connection protection. The gap is too large and cannot prevent the damage caused by the collapse of rocks during construction to pedestrians or vehicles outside. It can only serve as a warning.

[0005] Based on the above technologies and problems, the present invention provides a temporary safety protection enclosure for road maintenance. Summary of the invention

[0006] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a temporary safety protection enclosure for road maintenance, which can adjust the height of the enclosure to adjust the protection area and is convenient and quick to store.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is.

[0008] A temporary safety protection fence for road maintenance, comprising a first fence and a second fence; the first fence and the second fence are provided with a steel grid; locking mechanisms, slots, and through slots are provided on both sides of the first fence, and teeth and guide shafts are provided on both sides of the second fence, the guide shaft is arranged in the slot, and the locking mechanism is arranged at the through slot, and the locking mechanism cooperates with the teeth to lock the first fence and the second fence; the locking mechanism comprises a fixed frame and a limit shaft, the fixed frame is fixedly connected to the first fence, the limit shaft is arranged in the through slot, the limit shaft is slidably connected to the fixed frame, a key block and a support arm are provided on the limit shaft, a limit plate and a spline are provided at one end of the limit shaft, a spring is sleeved on the limit shaft, the spring contacts the limit plate and the fixed frame, and the spline is pushed by the spring to fit the teeth for locking; the key block prevents the limit shaft from rotating.

[0009] Preferably, a first support block and a first insertion hole are provided on one side of the first fence, a first insertion shaft is provided on the first support block, and the first support block and the first insertion hole are respectively provided at two ends of the first fence.

[0010] Preferably, a second support block and a second plug hole are provided on one side of the second fence, a second plug shaft is provided on the second support block, and the second support block and the second plug hole are respectively provided at both ends of the second fence; the height of the second plug hole corresponds to the first plug shaft, and the second plug shaft corresponds to the first plug hole.

[0011] Preferably, a first rotating drum is provided on one side of the second fence, and a second rotating drum is provided on the other side, and the height of the first rotating drum is located below the second rotating drum.

[0012] Preferably, a first limit plate and a second limit plate are respectively provided on both sides of the top of the second fence, and the second limit plate is concentric with the second rotating drum; the first limit plate is concentric with the first rotating drum; the first limit plate and the second limit plate are provided with limit holes for plugging in the fixed shaft; the second limit plate is provided with an empty groove for plugging in the first limit plate; the second limit plate is higher than the first limit plate.

[0013] Preferably, a control mechanism is provided on the first fence, including a control shaft and a fixed block, the fixed block is fixed on the first fence, and both ends of the control shaft are rotatably connected to the fixed block; both ends of the control shaft are provided with adjustment arms, and the adjustment arms are arranged on one side of the support arm, and the limit shaft and the gear are released from the locked state of fitting with the teeth by rotating the control shaft and the adjustment arm to push the support arm.

[0014] Preferably, a gripping arm is provided on the control shaft to facilitate the operation and rotation of the control shaft.

[0015] Preferably, the first fence and the second fence are formed by welding hollow square tubes.

[0016] Preferably, angle irons are provided at the corners of the first fence and the second fence for auxiliary fixation.

[0017] Preferably, the grid circumference is fixed by slats, and then fixed to the first fence and the second fence by slats, which is conducive to the regulation and fixation of the grid.

[0018] Preferably, the first rotating drum and the second rotating drum are provided with pins for connecting the enclosures.

[0019] Preferably, a warning light is provided on the top of the first fence to improve the warning effect at night.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1) In the technical solution, the enclosure is composed of a first fence and a second fence. The first fence and the second fence are provided with grids, which can not only ensure the sight, but also block the flying stones, and effectively protect the passing vehicles; further, when the construction force is large and the enclosure height is not enough to prevent the sand and stone particles from flying, the first fence can be lifted as a whole to slide along the guide shaft. At this time, the insert in the locking mechanism will be blocked by the teeth and will retreat. After passing the teeth, it will be inserted into the teeth again under the push of the spring. Since the contact surface between the teeth and the insert is a plane, the first fence can be prevented from sliding down; thereby changing the overall height of the enclosure and expanding the overall protection range of the enclosure;

[0022] 2) According to the installation angle requirements between the enclosures, the first limit plate and the second limit plate can be rotated with the pin shaft as the axis, and then the fixed shaft is inserted into the limit holes on the first limit plate and the second limit plate to lock the angle between the enclosures, so that the overall protection range of the enclosure is fixed, to prevent the deviation between the enclosures from escaping from the construction range of the enclosure protection after one side of the enclosure is hit;

[0023] 3) When the construction is completed and needs to be stored, the control shaft is rotated by controlling the grab arm to make the adjustment arm push the support arm to pull the limit shaft and the insert gear to disengage from the locked state with the teeth, and then slide the first fence so that its top is flush with the second fence, and then lock it through the locking mechanism; then retract the pin shaft, stack the fences, make the first insert shaft plug into the second plug hole, and the second insert shaft plug into the first plug hole, which can avoid sliding during transportation. At the same time, the use of the first support block and the second support block also avoids damage to the locking mechanism when stacking the fences. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 This is a schematic diagram of a temporary safety protection enclosure structure for road maintenance in the utility model. Figure 1 ;

[0025] Attached Figure 2 This is a schematic diagram of a temporary safety protection enclosure structure for road maintenance in the utility model. Figure 2 ;

[0026] Attached Figure 3 This is a top view of a temporary safety protection enclosure structure for road maintenance in the utility model;

[0027] Attached Figure 4 Yes Figure 3 A magnified schematic diagram of the local structure;

[0028] Attached Figure 5 This is a cross-sectional view of a temporary safety protection enclosure structure for road maintenance of the utility model;

[0029] Attached Figure 6 Yes Figure 5 A magnified schematic diagram of the local structure;

[0030] Attached Figure 7 This is a utility model of a temporary safety protection fence for road maintenance. Figure 1 ;

[0031] Attached Figure 8 This utility model is a temporary safety protection enclosure for road maintenance with storage effect Figure 1 ;

[0032] Attached Fig. 9 This utility model is a temporary safety protection enclosure for road maintenance with storage effect Figure 2 ;

[0033] In the figure: 1. first fence; 11. first support block; 111. first plug shaft; 12. slot; 13. first plug hole; 14. through slot; 2. second fence; 21. first limit plate; 211. limit hole; 22. second limit plate; 221. empty slot; 23. first rotating cylinder; 24. second rotating cylinder; 25. second support block; 251. second plug shaft; 26. second plug hole; 27. teeth; 28. guide shaft; 3. grid; 31. slats; 4. locking mechanism; 41. fixed frame; 42. limit shaft; 421. limit plate; 422. plug teeth; 43. support arm; 44. key block; 45. control shaft; 451. adjustment arm; 452. grab arm; 453. fixed block; 46. spring; 5. pin shaft; 6. angle iron. DETAILED DESCRIPTION

[0034] To facilitate the understanding of those skilled in the art, Figure 1-9 , the technical solution of the utility model is further specifically described.

[0035] A temporary safety protection fence for road maintenance, comprising a first fence 1 and a second fence 2; a steel mesh 3 is arranged on the first fence 1 and the second fence 2; a locking mechanism 4, a slot 12 and a through slot 14 are arranged on both sides of the first fence 1, and teeth 27 and a guide shaft 28 are arranged on both sides of the second fence 2, wherein the guide shaft 28 is arranged in the slot 12, and the locking mechanism 4 is arranged at the through slot 14, and the locking mechanism 4 cooperates with the teeth 27 to lock the first fence 1 and the second fence 2; the locking mechanism 4 comprises a fixing frame 41, The limiting shaft 42, the fixed frame 41 is fixedly connected to the first fence 1, the limiting shaft 42 is arranged in the through groove 14, the limiting shaft 42 is slidably connected to the fixed frame 41, the limiting shaft 42 is provided with a key block 44 and a support arm 43, one end of the limiting shaft 42 is provided with a limiting plate 421 and a tooth 422, a spring 46 is sleeved on the limiting shaft 42, the spring 46 touches the limiting plate 421 and the fixed frame 41, and the tooth 422 is pushed by the spring 46 to fit the tooth 27 for locking; the key block 44 prevents the limiting shaft 42 from rotating.

[0036] A first support block 11 and a first insertion hole 13 are provided on one side of the first fence 1 . A first insertion shaft 111 is provided on the first support block 11 . The first support block 11 and the first insertion hole 13 are respectively provided at two ends of the first fence 1 .

[0037] A second support block 25 and a second insertion hole 26 are provided on one side of the second fence 2, and a second insertion shaft 251 is provided on the second support block 25. The second support block 25 and the second insertion hole 26 are respectively provided at two ends of the second fence 2; the height of the second insertion hole 26 corresponds to the first insertion shaft 111, and the second insertion shaft 251 corresponds to the first insertion hole 13.

[0038] A first rotating drum 23 is disposed on one side of the second fence 2 , and a second rotating drum 24 is disposed on the other side. The height of the first rotating drum 23 is located below the second rotating drum 24 .

[0039] The first limiting plate 21 and the second limiting plate 22 are respectively provided on both sides of the top of the second fence 2, and the second limiting plate 22 is concentric with the second rotating drum 24; the first limiting plate 21 is concentric with the first rotating drum 23; the first limiting plate 21 and the second limiting plate 22 are provided with limiting holes 211 for plugging in the fixed shaft; the second limiting plate 22 is provided with an empty groove 221 for plugging in the first limiting plate 21; the second limiting plate 22 is higher than the first limiting plate 21.

[0040] The first fence 1 is provided with a control mechanism, including a control shaft 45 and a fixed block 453. The fixed block 453 is fixed on the first fence 1, and both ends of the control shaft 45 are rotatably connected to the fixed block 453; both ends of the control shaft 45 are provided with adjustment arms 451, and the adjustment arms 451 are arranged on one side of the support arm 43. By rotating the control shaft 45 and the adjustment arm 451, the support arm 43 is pushed so that the limit shaft 42 and the inserting gear 422 are released from the locking state of the tooth 27.

[0041] The control shaft 45 is provided with a gripping arm 452 to facilitate the operation and rotation of the control shaft 45 .

[0042] The first fence 1 and the second fence 2 are formed by welding hollow square tubes.

[0043] Angle irons 6 are provided at the corners of the first fence 1 and the second fence 2 for auxiliary fixation.

[0044] The grid 3 is fixed around the periphery by means of slats 31 and then fixed to the first fence 1 and the second fence 2 by means of slats 31, which is beneficial to the regulation and fixation of the grid.

[0045] The first rotating drum 23 and the second rotating drum 24 are provided with a pin shaft 5 for connecting the enclosures.

[0046] A warning light is provided on the top of the first fence 1.

[0047] A temporary safety protection enclosure for road maintenance, the working process is as follows:

[0048] The protective fence is composed of a first fence 1 and a second fence 2 that are slidably connected. When in use, the first rotating cylinder 23 is connected to the second rotating cylinder 24, and then the first rotating cylinder 23 and the second rotating cylinder 24 are plugged together through the pin shaft 5 to achieve connection between the fences. The fences can be connected according to the size of the road maintenance area. When the construction force is large and the fence height is not enough to prevent sand and gravel particles from flying, the first fence 1 can be lifted as a whole to slide along the guide shaft 28. At this time, the insert tooth 422 in the locking mechanism 4 will be blocked by the tooth 27 and will retreat. After passing the tooth 27, it will be plugged into the tooth 27 again under the push of the spring 46. Since the contact surface between the tooth 27 and the insert tooth 422 is a plane, the first fence 1 can be prevented from sliding down.

[0049] Furthermore, according to the requirements of the installation angle between the enclosures, the first limit plate 21 and the second limit plate 22 can be rotated with the pin shaft as the axis, and then the limit holes 211 on the first limit plate 21 and the second limit plate 22 are inserted into the fixed shaft to lock the angle between the enclosures, so that the overall protection range of the enclosure is fixed, thereby preventing deviations between the enclosures and escaping from the construction range of the enclosure protection after one side of the enclosure is hit.

[0050] When the construction is completed and needs to be stored, the control shaft 45 is rotated by controlling the grab arm 452, so that the adjustment arm 451 pushes the support arm 43 to pull the limit shaft 42 and the inserting tooth 422 out of the locked state with the tooth 27, and then the first fence 1 is slid so that its top is flush with the second fence 2, and then locked by the locking mechanism 4; then the pin shaft 5 is retracted, and the fences are stacked, so that the first inserting shaft 111 is plugged into the second socket 26, and the second inserting shaft 251 is plugged into the first socket 13, so as to avoid sliding during transportation. At the same time, the use of the first support block 11 and the second support block 25 avoids damage to the locking mechanism 4 when stacking the enclosures.

[0051] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A temporary safety protection enclosure for road maintenance, comprising a first fence and a second fence; characterized in that The first fence and the second fence are provided with steel meshes; locking mechanisms, slots and through slots are provided on both sides of the first fence, and teeth and guide shafts are provided on both sides of the second fence, the guide shaft is arranged in the slot, and the locking mechanism is arranged at the through slot, and the locking mechanism cooperates with the teeth to lock the first fence and the second fence; the locking mechanism includes a fixed frame and a limit shaft, the fixed frame is fixedly connected to the first fence, the limit shaft is arranged in the through slot, the limit shaft is slidably connected to the fixed frame, a key block and a support arm are provided on the limit shaft, a limit plate and a spline are provided at one end of the limit shaft, a spring is sleeved on the limit shaft, the spring touches the limit plate and the fixed frame, and the spline is pushed by the spring to fit the teeth for locking; the key block prevents the limit shaft from rotating.

2. A temporary safety protection enclosure for road maintenance according to claim 1, characterized in that A first support block and a first insertion hole are provided on one side of the first fence, a first insertion shaft is provided on the first support block, and the first support block and the first insertion hole are respectively provided at two ends of the first fence.

3. A temporary safety protection enclosure for road maintenance according to claim 1, characterized in that A second support block and a second plug hole are provided on one side of the second fence, a second plug shaft is provided on the second support block, and the second support block and the second plug hole are respectively provided at two ends of the second fence; the height of the second plug hole corresponds to the first plug shaft, and the second plug shaft corresponds to the first plug hole.

4. A temporary safety protection enclosure for road maintenance according to claim 3, characterized in that A first rotating drum is provided on one side of the second fence, and a second rotating drum is provided on the other side, and the height of the first rotating drum is located below the second rotating drum; pin shafts are provided at the first rotating drum and the second rotating drum for connecting the enclosures.

5. A temporary safety protection enclosure for road maintenance according to claim 4, characterized in that The first limit plate and the second limit plate are respectively provided on both sides of the top of the second fence, and the second limit plate is concentric with the second rotating drum; the first limit plate is concentric with the first rotating drum; the first limit plate and the second limit plate are provided with limit holes for plugging in the fixed shaft; the second limit plate is provided with an empty groove for plugging in the first limit plate; the second limit plate is higher than the first limit plate.

6. A temporary safety protection enclosure for road maintenance according to claim 1, characterized in that The first fence is provided with a control mechanism, including a control shaft and a fixed block. The fixed block is fixed on the first fence, and both ends of the control shaft are rotatably connected to the fixed block; both ends of the control shaft are provided with adjustment arms, and the adjustment arms are arranged on one side of the support arm. By rotating the control shaft and the adjustment arm to push the support arm, the limit shaft and the gear are released from the locking state of the engagement with the teeth.

7. A temporary safety protection enclosure for road maintenance according to claim 6, characterized in that The control shaft is provided with a gripping arm to help the control shaft to operate and rotate.

8. A temporary safety protection enclosure for road maintenance according to claim 1, characterized in that The first fence and the second fence are welded from hollow square tubes; a warning light is provided on the top of the first fence to improve the warning effect at night.

9. A temporary safety protection enclosure for road maintenance according to claim 1, characterized in that Angle irons are provided at the corners of the first fence and the second fence for auxiliary fixation.

10. A temporary safety protection enclosure for road maintenance according to claim 1, characterized in that The grid circumference is fixed by slats, and then fixed to the first fence and the second fence by slats, which is conducive to the regulation and fixation of the grid.

Images