Road engineering guardrail

Abstract

The utility model belongs to the field of road engineering, and discloses a road engineering guardrail, which comprises a supporting assembly which is placed on the ground to support road protection work, and an adjusting assembly which is arranged in the supporting assembly, is used for synchronously rotating on two sides and is pushed to lift through threads to adjust the height, one side of the bottom of the adjusting assembly is provided with a control assembly used for driving lifting through hand-cranking rotation; the adjusting assembly comprises a heightening cross rod, and a rain roof is arranged on the heightening cross rod. According to the road engineering guardrail disclosed by the utility model, the height of the guardrail can be adjusted without the help of an external tool through the arrangement of lifting driven by hand rotation and lifting adjusted by thread pushing, so that the height of the guardrail is convenient to adjust; through the arrangement of pushing lifting through threads, the height is fixed through the self-locking performance of the threads, and additional fixing is not needed; through the arrangement of synchronous rotation of the two sides, the heights of the two sides are always flush during lifting adjustment, and jamming caused by unevenness of the two sides is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of road engineering, in particular to a road engineering guardrail. Background Art

[0002] Road engineering is the applied science and technology of road planning, surveying, designing, construction, supervision, and maintenance. It also refers to the roads that are built. It is a branch of civil engineering, which involves many aspects, including road network planning, road surveying and design, roadbed engineering, pavement engineering, road drainage engineering, bridge and culvert engineering, tunnel engineering, ancillary facilities and maintenance engineering. Road engineering guardrails are deeply rooted in the sustainable development of traffic safety and road infrastructure construction. The guardrail heights required for different sections or different scenarios are often different. For example, for maintenance sections, the required guardrail height usually needs to be increased, so guardrails with fixed heights are inconvenient to use.

[0003] In comparison, a Chinese patent with authorization announcement number CN220035280U discloses a liftable guardrail, comprising a plurality of bases arranged in a linear manner, wherein hollow columns are inserted on the bases, a lower cross bar is fixedly connected between the columns, a U-profile is fixedly connected to the top of the column, a plurality of thin rods are evenly arranged between the U-profile and the lower cross bar, the notch of the U-profile is arranged upward, a through hole is provided at the connection between the U-profile and the column, a pole is plugged in and connected to the column, an upper cross bar is fixedly connected to the top of the pole, pin holes are provided on the outer side surfaces of the left and right columns, a positioning pin is provided in the pin hole, and a plurality of positioning holes are evenly provided vertically on the outer side surfaces of the left and right columns.

[0004] The above patent solves the problem of fixing the height of the guardrail, but it requires external tools to adjust the height, and it is inconvenient to hold the height-increasing part when fixing the height-increasing part. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a road engineering guardrail to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A road engineering guardrail, comprising a support assembly placed on the ground to support road protection work, and an adjustment assembly installed inside the support assembly for synchronously rotating on both sides to promote lifting and lowering adjustment of height through threads, and a control assembly for manually rotating and driving the lifting and lowering is installed on one side of the bottom of the adjustment assembly;

[0008] The adjustment component includes a height-increasing cross bar, a rain roof is arranged on the height-increasing cross bar, two height-increasing square tubes are symmetrically arranged at both ends of the height-increasing cross bar, a threaded slider is installed at the bottom of the height-increasing square tube, a support block is arranged under the threaded slider, a screw rod is arranged in the threaded slider, the screw rod is rotatably connected to the support block, a synchronous wheel is arranged at the bottom of the screw rod, and a synchronous belt is installed between the two synchronous wheels.

[0009] Furthermore: the support assembly includes two support seats symmetrically arranged on both sides, a support square tube is arranged on the support seat, a connecting rod and a connecting square tube are symmetrically arranged between the two supporting square tubes, and a plurality of vertical rods are evenly arranged between the connecting square tube and the connecting rod.

[0010] Furthermore, the control assembly includes a transmission bevel gear, a power bevel gear is meshed below the transmission bevel gear, a rotating shaft is installed inside the power bevel gear, a hand wheel is installed in front of the rotating shaft, and a handle is installed on the top of the hand wheel.

[0011] Furthermore: the support seat is in a step-shaped shape, and six vertical rods are provided.

[0012] Furthermore, the heightened square tube is slidably connected to the supporting square tube, and the threaded slider is slidably connected to the supporting square tube.

[0013] Furthermore: the hand wheel disc is circular in shape, and the handle is hingedly connected to the hand wheel disc.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. The height of the guardrail can be adjusted by hand-cranking and thread-pushing, without the need for external tools, which facilitates the adjustment of the height of the guardrail;

[0016] 2. The setting of lifting and lowering is driven by the thread, and the height is fixed by the self-locking property of the thread, without the need for additional fixing;

[0017] 3. By setting the synchronous rotation of both sides, the height of both sides is always level during the lifting and lowering adjustment to avoid jamming caused by unevenness of the two sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a road engineering guardrail described in the utility model;

[0019] Figure 2 It is an axonometric diagram of a support assembly of a road engineering guardrail described in the utility model;

[0020] Figure 3 It is a front view of an adjustment component of a road engineering guardrail described in the utility model;

[0021] Figure 4 It is a right view of a control component of a road engineering guardrail described in the utility model.

[0022] In the accompanying drawings: 101, support seat; 102, supporting square tube; 103, connecting square tube; 104, connecting rod; 105, vertical rod; 201, heightening cross bar; 202, rain roof; 203, heightening square tube; 204, threaded slider; 205, screw rod; 206, synchronous wheel; 207, synchronous belt; 208, support block; 301, transmission bevel gear; 302, power bevel gear; 303, rotating shaft; 304, handwheel; 305, handle. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] See also Figure 1-Figure 4 A road engineering guardrail includes a support component placed on the ground to support road protection work, and also includes an adjustment component installed inside the support component for synchronously rotating on both sides and adjusting the height by pushing the lifting and lowering through a thread. A control component for manually cranking and driving the lifting and lowering is installed on one side of the bottom of the adjustment component.

[0025] In this embodiment: the support assembly includes two support seats 101 symmetrically arranged on both sides, a support square tube 102 is arranged on the support seat 101, a connecting rod 104 and a connecting square tube 103 are symmetrically arranged between the two support square tubes 102, six vertical rods 105 are evenly arranged between the connecting square tube 103 and the connecting rod 104, the support seat 101 is in a step-shaped shape, the connecting square tube 103 and the connecting rod 104 connect the two support square tubes 102, and cooperate with the vertical rod 105 to form the guardrail body, the step-shaped support seat 101 enhances the supporting force to prevent the guardrail from tipping over;

[0026] In this embodiment, the adjustment component includes a heightening crossbar 201, a rain roof 202 is arranged on the heightening crossbar 201, two heightening square tubes 203 are symmetrically arranged at both ends of the heightening crossbar 201, a threaded slider 204 is installed at the bottom of the heightening square tube 203, a support block 208 is arranged below the threaded slider 204, a screw rod 205 is arranged in the threaded slider 204, the screw rod 205 is rotatably connected to the support block 208, a synchronous wheel 206 is arranged at the bottom of the screw rod 205, a synchronous belt 207 is installed between the two synchronous wheels 206, and the heightening square tube 203 is connected to the support block 208. The supporting square tube 102 is slidably connected, and the threaded slider 204 is slidably connected to the supporting square tube 102. When the height of the guardrail needs to be changed, the control component drives the screw rod 205 above it to rotate under the support of the support block 208, and the screw rod 205 drives the screw rod 205 away from this side to rotate synchronously through the synchronous wheel 206 and the synchronous belt 207, thereby synchronously pushing the threaded sliders 204 on both sides to drive the heightening cross bar 201 to move up and down through the heightening square tube 203 to adjust the height of the guardrail; a rain cap 202 is arranged on the top of the heightening cross bar 201 to block rainwater;

[0027] In this embodiment: the control component includes a transmission bevel gear 301, a power bevel gear 302 is meshed below the transmission bevel gear 301, a rotating shaft 303 is installed in the power bevel gear 302, a handwheel disc 304 is installed in front of the rotating shaft 303, a handle 305 is installed on the top of the handwheel disc 304, the handwheel disc 304 is circular in shape, the handle 305 is hinged to the handwheel disc 304, the handwheel disc 304 drives the rotating shaft 303 to rotate through the handle 305, and the rotation drives the power bevel gear 302 to mesh with the transmission bevel gear 301 and drive the screw rod 205 above it to rotate, and the handle 305 is rotated toward the surface of the handwheel disc 304, and the handle 305 can be folded and stored.

[0028] Working principle: the connecting square tube 103 and the connecting rod 104 connect the two supporting square tubes 102, and cooperate with the vertical rod 105 to form the guardrail body. The terrace-shaped support seat 101 enhances the supporting force to prevent the guardrail from tipping over. When the height of the guardrail needs to be changed, the hand wheel disc 304 is used to drive the rotating shaft 303 to rotate through the handle 305, and the rotation drives the power bevel gear 302 to engage the transmission bevel gear 301 to drive the screw rod 205 above it to rotate under the support of the support block 208. The screw rod 205 drives the screw rod 205 away from this side to rotate synchronously through the synchronous wheel 206 and the synchronous belt 207, thereby synchronously pushing the threaded sliders 204 on both sides to drive the heightening cross bar 201 to move up and down through the heightening square tube 203 to adjust the height of the guardrail. After the adjustment is completed, the handle 305 is rotated and folded toward the surface of the hand wheel disc 304 to store it; a rain cap 202 is provided on the top of the heightening cross bar 201 to block rainwater.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road engineering guardrail, comprising a support assembly for being placed on the ground to support road protection work, characterized in that: It also includes an adjustment component installed inside the support component for synchronously rotating on both sides to promote lifting and lowering to adjust the height through threads, and a control component for manually rotating and driving the lifting and lowering is installed on one side of the bottom of the adjustment component; The adjustment assembly comprises a height-increasing cross bar (201), a rain cover (202) is arranged on the height-increasing cross bar (201), two height-increasing square tubes (203) are symmetrically arranged at both ends of the height-increasing cross bar (201), a threaded slider (204) is installed at the bottom of the height-increasing square tube (203), a support block (208) is arranged below the threaded slider (204), a screw rod (205) is arranged inside the threaded slider (204), the screw rod (205) is rotatably connected to the support block (208), a synchronous wheel (206) is arranged at the bottom of the screw rod (205), and a synchronous belt (207) is installed between the two synchronous wheels (206).

2. A road engineering guardrail according to claim 1, characterized in that: The support assembly comprises two support seats (101) symmetrically arranged on both sides, a support square tube (102) is arranged on the support seat (101), a connecting rod (104) and a connecting square tube (103) are symmetrically arranged between the two supporting square tubes (102), and a plurality of vertical rods (105) are evenly arranged between the connecting square tube (103) and the connecting rod (104).

3. A road engineering guardrail according to claim 1, characterized in that: The control assembly comprises a transmission bevel gear (301), a power bevel gear (302) is meshed below the transmission bevel gear (301), a rotating shaft (303) is installed inside the power bevel gear (302), a hand wheel disc (304) is installed in front of the rotating shaft (303), and a handle (305) is installed on the top of the hand wheel disc (304).

4. A road engineering guardrail according to claim 2, characterized in that: The support seat (101) is in the shape of a terrace, and six vertical rods (105) are provided.

5. A road engineering guardrail according to claim 2, characterized in that: The height-increasing square tube (203) is slidably connected to the supporting square tube (102), and the threaded slider (204) is slidably connected to the supporting square tube (102).

6. A road engineering guardrail according to claim 3, characterized in that: The hand wheel disc (304) is circular in shape, and the handle (305) is hingedly connected to the hand wheel disc (304).

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