Adjustable road and bridge protective fence

Abstract

The utility model discloses an adjustable road bridge protective fence which comprises a fixing column, mounting grooves are formed in the two sides of the fixing column, a limiting mechanism is arranged at the bottom end of the interior of the fixing column, a fixing fence is arranged in the mounting grooves, and buffering mechanisms are evenly arranged on the two sides of the interior of the fixing fence at equal intervals. And a turntable is arranged in the middle position of the two groups of buffer mechanisms. The limiting mechanisms are arranged in the fixing columns, the fixing columns can be installed between the two sets of fixing columns by clamping the limiting hooks on the two sides of the limiting mechanisms into the limiting grooves in the fixing columns, and when a first gear on the limiting mechanisms is rotated, the first gear can drive a third gear to rotate through a second gear at the moment; and meanwhile, a third gear drives a fourth gear to rotate so as to push racks on the two sides, the racks drive limiting hooks to cancel limiting of the fixed fences, and at the moment, the fixed fences with different lengths can be selected according to the actual installation requirements of the protective fence.

Description

TECHNICAL FIELD

[0001] The utility model relates to road and bridge guardrail technical field, concretely is a kind of adjustable road and bridge guardrail. BACKGROUND

[0002] Road and bridge guardrail is the safety protection facility being set in road edge, bridge two sides or central reservation strip, mainly for preventing vehicle or pedestrian accidental rush out of road, fall bridge or collision to opposite lane, ensure effectively intercepting out-of-control vehicle in accident, reduce casualties, while giving consideration to sight guiding and road landscape coordination.

[0003] In the road and bridge guardrail of Chinese patent announcement No. CN220953128U, by the lower placing block, upper placing block, first fixed screw, guardrail, fixed nut setting, a kind of road and bridge guardrail has the advantage of convenient maintenance replacement, avoid the current bridge rail when being broken by impact, it is more inconvenient to maintain and replace, but the overall functionality of road and bridge guardrail is lower, and the guardrail specification is fixed, the overall length of the guardrail cannot be adjusted according to the actual assembly demand, thereby affecting the stability of road and bridge guardrail in different situations. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of adjustable road and bridge guardrail to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of adjustable road and bridge guardrail, including fixed column, the inside of the both sides of fixed column is provided with mounting slot, the bottom end of the inside of fixed column is provided with limiting mechanism, the inside of mounting slot is provided with fixed fence, the both sides of the inside of fixed fence are evenly provided with buffer mechanism at equal distance, the middle position of two groups of buffer mechanism is provided with rotary table.

[0006] Preferably, the limiting mechanism includes a first gear rotatably connected to the bottom end of one side of the fixed column, the first gear is meshingly connected to a second gear on one side, and the second gear is meshingly connected to a third gear on one side.

[0007] Preferably, the top end of the third gear is fixedly connected to a fourth gear, the bottom end of the fourth gear is fixedly connected to a torsional spring fixedly connected to the fixed column, the both sides of the fourth gear are meshingly connected to a rack, the one side of the rack is fixedly connected to a limiting hook, and the both sides of the bottom end of the fixed fence are provided with a limiting slot inserted with the limiting hook.

[0008] Preferably, the buffer mechanism includes a slide rod fixedly connected to the both sides of the inside of the fixed fence at equal distance, the outside of the slide rod is slidingly connected to a sliding block rotatably connected to the rotary table, and the both sides of the sliding block are fixedly connected to a spring.

[0009] Preferably, the middle positions of the two groups of rotating discs are uniformly and equidistantly connected with rotating rollers, and the rotating rollers are provided with six groups inside the rotating discs.

[0010] Preferably, mounting holes are uniformly and equidistantly arranged on both sides of the mounting groove.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The adjustable road bridge guardrail, by setting the limiting mechanism in the fixed column, the limiting hooks on both sides of the limiting mechanism are clamped into the limiting grooves on the fixed column, the installation of the fixed column in the middle position of the two groups of fixed columns can be completed, when the first gear on the limiting mechanism is rotated, the first gear can drive the third gear to rotate through the second gear at this time, and the third gear drives the fourth gear to rotate to push the racks on both sides, and the racks drive the limiting hooks to cancel the limiting of the fixed column, at this time, the fixed column with different lengths can be selected according to the actual installation demand of the guardrail, so that the overall installation length of the guardrail is adjusted, and the convenience of the guardrail is improved.

[0013] 2. The adjustable road bridge guardrail, by setting the multiple rotating discs in the fixed column, and the multiple rotating rollers in the rotating discs, when the rotating rollers are subjected to the impact, the rotating rollers and the rotating discs can rotate and disperse the impact force, delay the transmission of the impact force and uniformly disperse it to multiple directions, and the sliding block can slide on the sliding rod in the fixed column driven by the rotating disc, at this time, the sliding block can extrude the spring on one side and reduce the overall stress of the guardrail, effectively improve the impact energy absorption capacity of the guardrail, and improve the safety of the overall use of the guardrail. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the utility model;

[0015] Figure 2 It is the front view structure schematic view of the utility model;

[0016] Figure 3 It is the overhead structure schematic view of the limiting mechanism of the utility model;

[0017] Figure 4 It is the overhead structure schematic view of the first gear of the utility model;

[0018] Figure 5 It is the side view structure schematic view of the buffer mechanism of the utility model.

[0019] In the figure: 1, fixed column; 101, mounting groove; 102, mounting hole; 2, limiting mechanism; 201, first gear; 202, second gear; 203, third gear; 204, fourth gear; 205, torsional spring; 206, rack; 3, limiting hook; 4, fixed fence; 401, limiting groove; 5, buffer mechanism; 501, sliding rod; 502, sliding block; 503, spring; 6, rotating disc; 601, rotating roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides two technical schemes:

[0022] Embodiment one, a kind of adjustable road bridge guardrail, including fixed column 1, the inside of the both sides of fixed column 1 is provided with mounting groove 101, the bottom end of the inside of fixed column 1 is provided with limiting mechanism 2, the inside of mounting groove 101 is provided with fixed fence 4, the both sides of the inside of fixed fence 4 are evenly provided with buffer mechanism 5 at equal distance, the middle position of two groups of buffer mechanism 5 is provided with rotating disc 6, and mounting groove 101 can be inserted and placed installation of fixed fence 4.

[0023] The first gear 201 of limiting mechanism 2 is rotatably connected to the bottom end of one side of fixed column 1, the second gear 202 is meshingly connected to one side of the first gear 201, the third gear 203 is meshingly connected to one side of the second gear 202, the first gear 201 can drive the third gear 203 to rotate through the second gear 202, and the third gear 203 can drive the fourth gear 204 at the top to rotate.

[0024] The top end of the third gear 203 is fixedly connected with a fourth gear 204, the bottom end of the fourth gear 204 is fixedly connected with a torsion spring 205 fixedly connected with the fixed column 1, the two sides of the fourth gear 204 are meshingly connected with a rack 206, one side of the rack 206 is fixedly connected with the limiting hook 3, the bottom end of the fixed column 4 is provided with a limiting groove 401 inserted with the limiting hook 3, when the fourth gear 204 rotates, the torsion spring 205 below can be twisted, at the same time, the fourth gear 204 pushes the two racks 206, so that the rack 206 pushes the limiting hook 3 to expand, and the limiting hook 3 moves in the limiting groove 401 on the fixed column 4, so that the limiting of the fixed column 4 is cancelled, and at the same time, the first gear 201 is loosened, due to the reaction force of the torsion spring 205 being pressed, the limiting hook 3 can be reset through the fourth gear 204.

[0025] The installation groove 101 is provided with installation holes 102 uniformly arranged at equal distances on the two sides, and the installation holes 102 in the installation groove 101 are screwed into the inside of the fixed column 4, so as to assist the connection and reinforcement of the fixed column 1 and the fixed column 4.

[0026] The main difference between the second embodiment and the first embodiment is that:

[0027] The adjustable road bridge guardrail includes a sliding rod 501 fixedly connected to the inside of the fixed column 4 at equal distances and uniformly on the two sides, a sliding block 502 fixedly connected to the two sides of the sliding rod 501, and a spring 503 fixedly connected to the two sides of the sliding block 502, the sliding block 502 can slide on the sliding rod 501 under the action of the rotating disc 6 and the rotating roller 601, at this time, the sliding block 502 can press the spring 503 on one side, and due to the reaction force of the spring 503 being pressed, the force of the guardrail part can be offset, and a certain degree of buffering effect can be achieved.

[0028] The rotating roller 601 is rotatably connected to the middle positions of the two groups of rotating discs 6, and the rotating roller 601 is provided with six groups inside the rotating disc 6, when a vehicle hits the guardrail, the rotation of the rotating roller 601 and the rotating disc 6 can effectively slow down the speed and intensity of the vehicle rebound, reduce the reverse impact force, so that the vehicle will not completely deviate from the road or roll over, and through the rotation of the rotating roller 601, the lateral displacement of the vehicle can be helped to be relieved, so that the vehicle can be more stably parked on the road or the edge of the bridge, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0029] The embodiment of the application is used in the following way: by fixing the two groups of fixed columns 1 at the specified positions of the bridge road, rotating the first gear 201 on the fixed column 1, the first gear 201 can drive the third gear 203 to rotate through the second gear 202, and the third gear 203 drives the fourth gear 204 to rotate, the fourth gear 204 can twist the torsional spring 205 below, and the fourth gear 204 can push the limiting hook 3 to expand through the two side racks 206, at this time, the fixed bar 4 is inserted into the installation slot 101 on the two groups of fixed columns 1, the limiting hook 3 can be inserted into the limiting slot 401 at the bottom end of the fixed bar 4, at this time, the first gear 201 is loosened, due to the reaction force of the twisted torsional spring 205, the limiting hook 3 on one side of the rack 206 can be pushed by the fourth gear 204 to complete the limiting work of the fixed bar 4, and the fixed bar 4 is provided with a plurality of rotating discs 6, and a plurality of rotating rollers 601 are arranged on the rotating disc 6, when the rotating roller 601 is impacted by the outside, the rotating roller 601 can rotate in the rotating disc 6, and the rotating disc 6 can rotate in the fixed bar 4 as a whole, at this time, the rotation of the rotating roller 601 and the rotating disc 6 can effectively slow down the speed and intensity of the vehicle rebound, and reduce the impact force on the whole guardrail.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An adjustable road bridge guard rail comprising a fixed post (1), characterized in that: The inside of both sides of the fixed column (1) is provided with a mounting groove (101), the bottom end of the inside of the fixed column (1) is provided with a limiting mechanism (2), the inside of the mounting groove (101) is provided with a fixed bar (4), the inside of the fixed bar (4) is uniformly provided with a buffer mechanism (5) at both sides, and the middle position of the two groups of buffer mechanisms (5) is provided with a rotating disc (6).

2. The adjustable road bridge guard rail according to claim 1, wherein: The limiting mechanism (2) comprises a first gear (201) rotatably connected to the bottom end of one side of the fixed column (1) outside, a second gear (202) meshedly connected to one side of the first gear (201), and a third gear (203) meshedly connected to one side of the second gear (202).

3. The adjustable highway bridge guard rail according to claim 2, wherein: The top end of the third gear (203) is fixedly connected with a fourth gear (204), the bottom end of the fourth gear (204) is fixedly connected with a torsional spring (205) fixedly connected with the fixed column (1), both sides of the fourth gear (204) are meshedly connected with a rack (206), one side of the rack (206) is fixedly connected with a limiting hook (3), and both sides of the bottom end of the fixed bar (4) are provided with a limiting groove (401) inserted with the limiting hook (3).

4. The adjustable highway bridge guard rail according to claim 1, wherein: The buffer mechanism (5) comprises a sliding rod (501) fixedly connected to both sides of the inside of the fixed bar (4) at equal distances, the outside of the sliding rod (501) is slidably connected with a sliding block (502) rotatably connected with the rotating disc (6) at the bottom end, and both sides of the sliding block (502) are fixedly connected with a spring (503).

5. The adjustable highway bridge guard rail according to claim 1, wherein: The middle positions of the two groups of rotating discs (6) are rotatably connected with rotating rollers (601) at equal distances, and the rotating rollers (601) are provided with six groups inside the rotating disc (6).

6. The adjustable highway bridge guard rail according to claim 1, wherein: Both sides of the inside of the mounting groove (101) are uniformly provided with mounting holes (102).

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