Adjustable height limiting equipment for traffic engineering

Abstract

The utility model belongs to the technical field of traffic engineering, and discloses adjustable height limiting equipment for traffic engineering, which comprises a fixed height limiting rod, an anti-collision strip, a sliding component and two height limiting frames with adjustable heights, the fixed height limiting rod is arranged between the tops of the two height limiting frames, and the anti-collision strip is arranged at the bottom of the fixed height limiting rod through the sliding component; the sliding assembly comprises a second sliding block, a mounting box, a connecting rod, a spring and a first sliding block, the connecting rod, the spring and the first sliding block are arranged in the mounting box, the mounting box is fixedly connected with the fixed height limiting rod, one end of the connecting rod is fixedly connected with the mounting box, the other end of the connecting rod penetrates through the first sliding block, and the connecting rod is sleeved with the spring. One end of the second sliding block is in sliding connection with the first sliding block, and the other end of the second sliding block is fixedly connected with the anti-collision strip. By means of the anti-collision strip with a certain telescopic adjusting allowance in the vertical direction, damage to the anti-collision strip, the height limiting rod and the vehicle body is reduced, and disassembly and replacement are quite convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of traffic engineering, and specifically relates to an adjustable height-limiting device for traffic engineering. Background Art

[0002] Height limiting equipment refers to facilities installed on urban roads to limit the height of vehicles to ensure that vehicles do not collide with overhead facilities during passage. Such facilities are usually used to restrict the passage of taller vehicles such as trucks, large trucks and buses to ensure traffic safety and the normal operation of urban roads.

[0003] For example, application number CN212477515U discloses an adjustable height limiting device for traffic engineering, including a base, a column, a slider, a height limiting pole and an equipment box. The column is fixedly installed on the top of the base, and the equipment box is fixedly installed on the top of one side of the column. A large gear shaft is movably installed inside the equipment box through a bearing, and a large gear is fixedly installed on the large gear shaft. The adjustable height limiting device for municipal engineering is provided with an equipment box, a large gear is installed in the equipment box, a small gear and a screw are installed on the inner side of the top of the column, and the slider is installed on the screw. The height of the height limiting pole can be fine-tuned through the transmission of the large gear and the small gear, which is convenient for separating the vehicle and the height limiting pole. The two ends of the height limiting pole are installed inside the slider through springs, which play a buffering role in the collision of the vehicle with the height limiting pole. The height limiting pole is provided with an anti-collision pad to protect the height limiting pole and avoid damage to the height limiting pole.

[0004] However, the anti-collision pad of the adjustable height limit equipment used in this traffic project is wrapped on the outside of the height limit pole, and the use of the anti-collision strip is relatively fixed. Some drivers of over-height vehicles will misjudge the height of the vehicle body and pass through the height limit pole. When the driver senses the collision, the vehicle is often stuck with the height limit pole, and the driver is caught in a dilemma. Violent retreat may easily cause damage to the height limit pole and the vehicle, and the anti-collision strip is not easy to disassemble and replace. It is easy for the anti-collision strip to lose its protective effect on the height limit pole and the vehicle due to damage, causing unnecessary economic losses.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an adjustable height-limiting device for traffic engineering is proposed. Utility Model Content

[0006] The utility model aims to provide an adjustable height-limiting device for traffic engineering, which solves the problem that the anti-collision strip is relatively fixed in use and is not convenient to disassemble and replace.

[0007] The technical solution adopted by the utility model is an adjustable height limit device for traffic engineering, comprising a fixed height limit rod, an anti-collision strip, a sliding assembly and two height-adjustable height limit frames, wherein the fixed height limit rod is arranged between the tops of the two height limit frames, and the anti-collision strip is arranged at the bottom of the fixed height limit rod through the sliding assembly;

[0008] The sliding assembly includes a second slider, an installation box, a connecting rod, a spring and a first slider arranged in the installation box, the installation box is fixedly connected to the fixed height limit rod, one end of the connecting rod is fixedly connected to the installation box, the other end of the connecting rod is passed through the first slider, the spring is sleeved on the connecting rod, one end of the second slider is slidably connected to the first slider, and the other end of the second slider is fixedly connected to the anti-collision strip.

[0009] Preferably, the first sliding block and the second sliding block are both wedge-shaped.

[0010] Preferably, a plurality of sliding components are arranged at intervals.

[0011] Preferably, the sliding assembly further comprises a sliding plate fixedly connected to the first sliding block, the shape of the sliding plate is the same as the cross-sectional shape of the inner cavity of the installation box, and the sliding plate is slidably connected to the installation box.

[0012] Preferably, the height limit frame is provided with a height adjustment device, and the height adjustment device includes a knob, a worm, a worm wheel, a threaded rod, a lifting block, and a telescopic rod. The knob is rotatably arranged on the outer wall of the height limit frame, the worm is fixedly connected to the knob, the worm is meshingly connected to the worm wheel, the threaded rod is fixedly penetrated through the rotation center of the worm wheel, the lifting block is sleeved on the threaded rod, and the threaded rod is threadedly connected to the lifting block. A lifting slot is provided on the height limit frame, one end of the lifting block is clamped in the lifting slot, the other end of the lifting block is fixedly connected to the telescopic rod, and the upper end of the telescopic rod is fixedly connected to the fixed height limit rod.

[0013] Preferably, the outer wall of the fixed height limiting rod is fixedly connected to a fixed box, the outer wall of the fixed box is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a gear, the gear is meshingly connected to a rack, and one end of the rack is fixedly connected to the extended height limiting rod.

[0014] Preferably, the extended height limiting rod is arranged in the fixed height limiting rod, a sliding groove is provided on the fixed height limiting rod, and the rack is slidably connected to the sliding groove.

[0015] Preferably, the outer wall of the height limiting frame is provided with a reflective strip.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model uses an anti-collision strip with a certain telescopic adjustment margin in the vertical direction, so that the driver can sense the height limit position before hitting the height limit pole, and the vehicle can be returned in time without damage, preventing the driver of the over-height vehicle from misjudging the vehicle height and damaging the vehicle or the height limit pole when passing through the height limit pole, thereby reducing unnecessary economic losses. At the same time, the spring absorbs the impact force, which plays a good buffering role and reduces the damage to the anti-collision strip, the height limit pole and the vehicle body itself;

[0018] 2. Compared with the existing wrapped anti-collision pad, the anti-collision strip of the utility model is more convenient to disassemble and replace, avoiding the situation where the entire height limit pole is discarded due to damage to the anti-collision strip, thereby causing excessive waste;

[0019] 3. The height of the height limit pole of the utility model is adjustable, which provides convenience for some super-high special vehicles that need to pass. At the same time, the utility model can simultaneously expand the range of the height limit pole on the road when the height of the widened traffic road is restricted by extending the setting of the height limit pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0021] Figure 2 This is a structural schematic diagram of the height limiting device of the utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the connection structure between the first slider and the second slider of the utility model;

[0023] Figure 4 This is a schematic diagram of the engagement position structure of the first slider and the second slider of the utility model;

[0024] Figure 5 It is a schematic diagram of the connection structure between the rack and the extended height-limiting rod of the utility model.

[0025] In the figure: 1. height limit frame; 11. reflective strip; 12. knob; 13. worm; 14. worm wheel; 15. threaded rod; 16. lifting block; 17. lifting slot; 18. telescopic rod; 19. limit slot; 20. fixed height limit rod; 21. sliding assembly; 211. installation box; 212. connecting rod; 213. fixed block; 214. spring; 215. first slider; 216. second slider; 217. slot; 218. anti-collision strip; 219. sliding plate; 3. fixed box; 31. servo motor; 32. gear; 33. rack; 34. slide slot; 35. extended height limit rod. DETAILED DESCRIPTION

[0026] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0027] Example 1

[0028] like Figure 1 As shown, the adjustable height limiting device for traffic engineering of the utility model includes a fixed height limiting pole 20, an anti-collision strip 218, a sliding assembly 21 and two height-adjustable height limiting frames 1, the fixed height limiting pole 20 is arranged between the tops of the two height limiting frames 1, and the anti-collision strip 218 is arranged at the bottom of the fixed height limiting pole 20 through the sliding assembly 21.

[0029] The sliding assembly 21 includes a second slider 216, an installation box 211, and a connecting rod 212, a spring 214 and a first slider 215 arranged in the installation box 211. The installation box 211 is fixedly connected to the fixed height limit rod 20, one end of the connecting rod 212 is fixedly connected to the installation box 211, and the other end of the connecting rod 212 is passed through the first slider 215. The spring 214 is sleeved on the connecting rod 212, one end of the second slider 216 is slidably connected to the first slider 215, and the other end is fixedly connected to the anti-collision strip 218.

[0030] Example 2

[0031] On the basis of Example 1, the outer wall of the height limiting frame 1 is provided with a reflective strip 11, such as Figure 2 As shown, a height adjustment device is provided on the height limit frame 1, and the height adjustment device includes a knob 12, a worm 13, a worm wheel 14, a threaded rod 15, a lifting block 16, and a telescopic rod 18. The above-mentioned knob 12 is provided on the outer wall of the height limit frame 1, and one end of the knob 12 is fixedly connected with the worm 13, which is rotatably penetrated on the side wall of the height limit frame 1, and the worm 13 is meshed and connected with the worm wheel 14. The rotation center of the worm wheel 14 is fixedly penetrated with a threaded rod 15, and both ends of the threaded rod 15 are rotatably connected to the inner wall of the height limit frame 1. A lifting block 16 is sleeved on the threaded rod 15, and the threaded rod 15 is threadedly connected to the lifting block 16. A lifting groove 17 is opened on the height limit frame 1, and one end of the lifting block 16 is clamped in the lifting groove 17, and the other end of the lifting block 16 is fixedly connected to the telescopic rod 18. The telescopic rod 18 is penetrated in the limiting groove 19, and the upper end of the telescopic rod 18 is fixedly connected to the fixed height limit rod 20. The rotation of the knob 12 can be controlled by a hand wheel or a motor.

[0032] The base of the height limiting frame 1 is fixed on the ground by pre-buried screws.

[0033] like Figure 3 As shown, the sliding assembly 21 includes a mounting box 211 , a connecting rod 212 , a fixing block 213 , a spring 214 , a first sliding block 215 , a second sliding block 216 , and a sliding plate 219 .

[0034] The installation box 211 is fixedly connected to the fixed height limit rod 20, and the connecting rod 212, the fixed block 213, the spring 214, the first slider 215 and the sliding plate 219 are arranged inside the installation box 211. One end of the connecting rod 212 is fixedly connected to the inner wall of the installation box 211 through the fixed block 213, and the other end of the connecting rod 212 is passed through the first slider 215 and the sliding plate 219. The first slider 215 is fixedly connected to the sliding plate 219. The shape of the sliding plate 219 is the same as the cross-sectional shape of the inner cavity of the installation box 211. The sliding plate 219 is The inner wall of the installation box 211 is slidably connected, which plays a role of supporting and limiting the first slider 215, further improving the structural stability; the spring 214 is sleeved on the connecting rod 212, and the spring 214 is in a compressed state in the working state. The two ends of the spring 214 are respectively connected to the first slider 215 and the fixed block 213; one end of the second slider 216 is slidably connected to the first slider 215, and the other end is fixedly connected to the anti-collision strip 218. A card slot 217 is provided at the bottom of the installation box 211, and the second slider 216 is inserted into the card slot 217. In this embodiment, the first slider 215 and the second slider 216 are both wedge-shaped, the first slider 215 is a wedge-shaped with a narrow top and a wide bottom, and the second slider 216 is a wedge-shaped with a wide top and a narrow bottom. The slopes of the contact surfaces of the two are the same. When working, the second slider 216 slides in the vertical direction, and the first slider 215 slides in the horizontal direction to achieve the displacement of the anti-collision strip 218 in the vertical direction. At the same time, the spring 214 absorbs the impact force to ensure the safety of the height limit pole, the vehicle and the driver.

[0035] In this embodiment, the installation box 211 is made of steel plate, and the slot 217 is opened on the bottom plate of the installation box 211. The bottom plate of the installation box 211 is fixedly connected to the side plate of the installation box 211 by high-strength bolts. The second slider 216 and the anti-collision strip 218 are prefabricated integrated structures. When replacing, open the bottom plate of the installation box 211, engage the upper end of the second slider 216 in the installation box 211 and then tighten the high-strength bolts. The assembly process is simple, saving manufacturing and assembly costs. At the same time, disassembly and maintenance are very simple.

[0036] Spring 214 needs to be a steel spring with a higher elastic coefficient to ensure that the driver can clearly feel the driving resistance, while being able to withstand a larger collision force to better achieve an anti-collision effect.

[0037] When a normal driver passes the height limit rod slowly due to misjudging the height of the vehicle body, the travel of the second slider 216 will not exceed the inclined area surface. However, when the driver passes the height limit rod illegally or fails to notice the height limit rod, the impact force of the vehicle is very large, causing the anti-collision strip 218 to be squeezed and deformed, further increasing the height of the second slider 216. Figure 4As shown, the second slider 216 will slide out of the inclined area surface and be fixed together with the first slider 215. At this time, the anti-collision strip 218 is fixedly connected to the fixed height limit rod 20 as a whole. The locking design can make the structure stable when reaching the extreme position, and there will be no unexpected movement or deformation, thereby maintaining the overall stability of the structure. On the other hand, it can prevent the second slider 216, spring and other structures from exceeding their designed maximum load-bearing capacity, thereby avoiding possible structural damage or failure.

[0038] Example 3

[0039] On the basis of Example 1 and Example 2, Figure 5 As shown, as another embodiment of the utility model, the outer wall of the fixed height limit rod 20 is fixedly connected to the fixed box 3, the outer wall of the fixed box 3 is fixedly connected to the servo motor 31, the output end of the servo motor 31 is fixedly connected to the gear 32 rotatably connected to the inner wall of the fixed box 3, the outer wall of the gear 32 is meshedly connected to the rack 33 slidably connected to the outer wall of the fixed height limit rod 20, one end of the rack 33 is fixedly connected to the extended height limit rod 35 slidably connected to the outer wall of the fixed height limit rod 20, when working, by setting the extended height limit rod 35 This is beneficial when imposing height restrictions on wider traffic roads. In order to expand the range of height restrictions on roads by the fixed height limit pole 20 and to improve the convenience of adjusting the length of the extended height limit pole 35, the servo motor 31 can be turned on to drive the rack 33 to slide along the inner wall of the slide groove 34 through the rotation of the gear 32. The rack 33 slides along the inner wall of the slide groove 34, driving the extended height limit pole 35 to perform reciprocating telescopic motion along the outer wall of the fixed height limit pole 20, thereby realizing the control operation of conveniently adjusting the length of the extended height limit pole 35.

[0040] A sliding groove 34 is provided at the connection position between the outer wall of the fixed box 3 and the rack 33. The rack 33 forms a sliding structure with the fixed box 3 through the servo motor 31 and the gear 32, which is conducive to the rotation of the gear 32 to drive the rack 33 to slide along the inner wall of the sliding groove 34, thereby realizing the control operation of the sliding of the extended height limit rod 35.

[0041] The working principle of the adjustable height limiting device for traffic engineering of the utility model is as follows:

[0042] When the over-height vehicle contacts the anti-collision strip 218, the vehicle will lift up the anti-collision strip 218, and the second slider 216 will rise in the vertical direction. Since the contact surface between the second slider 216 and the first slider 215 is an inclined surface, the second slider 216 will squeeze the first slider 215 to slide along the connecting rod 212, and the first slider 215 squeezes the spring 214 in a compressed state, so that the spring 214 absorbs a certain impact force. At the same time, the rebound force of the spring 214 will be transmitted to the vehicle, generating a certain resistance to the vehicle, so that the driver can sense that the vehicle has reached the height limit. At this time, the driver can retreat, and the spring 214 stretches to make the first slider 215 slide along the connecting rod 212, squeezing the second slider 216 downward to return to the initial state. The above process protects the height limit pole, the vehicle and the driver through the sliding assembly 21.

[0043] When it is necessary to allow the passage of an over-height special vehicle, the height of the fixed height limit rod 20 can be adjusted by adjusting the height of the height limit frame 1. The staff operates the rotating knob 12, which drives the worm 13, the worm wheel 14, and the threaded rod 15 to rotate, and the lifting block 16 converts the rotation of the threaded rod 15 into the displacement of the telescopic rod 18 in the vertical direction, thereby changing the height of the height limit frame 1, that is, adjusting the height of the fixed height limit rod 20, so that special vehicles can pass smoothly in an emergency.

[0044] When a wider traffic road is subject to height restrictions, in order to expand the range of the fixed height limit pole 20 to limit the height of the road, the servo motor 31 can be turned on, and the gear 32 rotates to drive the rack 33 to slide along the inner wall of the slide groove 34, so that the extended height limit pole 35 extends a certain distance from the fixed height limit pole 20, thereby realizing the adjustment of the usable length of the extended height limit pole 35.

[0045] Components and structures not described in detail in the embodiments are well-known components and common structures or common means in the industry and are not described one by one here.

Claims

1. An adjustable height limiting device for traffic engineering, characterized in that: It comprises a fixed height-limiting rod (20), an anti-collision strip (218), a sliding assembly (21) and two height-limiting frames (1) with adjustable heights, wherein the fixed height-limiting rod (20) is arranged between the tops of the two height-limiting frames (1), and the anti-collision strip (218) is arranged at the bottom of the fixed height-limiting rod (20) via the sliding assembly (21); The sliding assembly (21) comprises a second sliding block (216), a mounting box (211), a connecting rod (212), a spring (214) and a first sliding block (215) arranged in the mounting box (211); the mounting box (211) is fixedly connected to the fixed height limiting rod (20); one end of the connecting rod (212) is fixedly connected to the mounting box (211); the other end of the connecting rod (212) is inserted into the first sliding block (215); the spring (214) is sleeved on the connecting rod (212); one end of the second sliding block (216) is slidably connected to the first sliding block (215); and the other end of the second sliding block (216) is fixedly connected to the anti-collision strip (218).

2. The adjustable height limiting device for traffic engineering according to claim 1, characterized in that: The first sliding block (215) and the second sliding block (216) are both wedge-shaped.

3. The adjustable height limiting device for traffic engineering according to claim 1, characterized in that: A plurality of sliding components (21) are arranged at intervals.

4. The adjustable height limiting device for traffic engineering according to claim 1, characterized in that: The sliding assembly (21) further comprises a sliding plate (219) fixedly connected to the first sliding block (215); the shape of the sliding plate (219) is the same as the cross-sectional shape of the inner cavity of the installation box (211); the sliding plate (219) is slidably connected to the installation box (211).

5. The adjustable height limiting device for traffic engineering according to claim 1, characterized in that: The height-limiting frame (1) is provided with a height-adjusting device, the height-adjusting device comprising a knob (12), a worm (13), a worm wheel (14), a threaded rod (15), a lifting block (16), and a telescopic rod (18); the knob (12) is rotatably arranged on an outer wall of the height-limiting frame (1); the worm (13) is fixedly connected to the knob (12); the worm (13) is meshingly connected to the worm wheel (14); the threaded rod (15) is fixedly penetrated through the outer wall of the height-limiting frame (1). At the rotation center of the worm wheel (14), the lifting block (16) is sleeved on the threaded rod (15), the threaded rod (15) is threadedly connected to the lifting block (16), a lifting groove (17) is provided on the height limiting frame (1), one end of the lifting block (16) is clamped in the lifting groove (17), the other end of the lifting block (16) is fixedly connected to the telescopic rod (18), and the upper end of the telescopic rod (18) is fixedly connected to the fixed height limiting rod (20).

6. The adjustable height limiting device for traffic engineering according to claim 1, characterized in that: The outer wall of the fixed height limiting rod (20) is fixedly connected to a fixing box (3), the outer wall of the fixing box (3) is fixedly connected to a servo motor (31), the output end of the servo motor (31) is fixedly connected to a gear (32), the gear (32) is meshingly connected to a rack (33), and one end of the rack (33) is fixedly connected to an extended height limiting rod (35).

7. The adjustable height limiting device for traffic engineering according to claim 6, characterized in that: The extended height limiting rod (35) is arranged in the fixed height limiting rod (20), a sliding groove (34) is provided on the fixed height limiting rod (20), and the rack (33) is slidably connected to the sliding groove (34).

8. The adjustable height limiting device for traffic engineering according to any one of claims 1 to 7, characterized in that: The outer wall of the height limiting frame (1) is provided with a reflective strip (11).

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