CN211872562U - Accidental anti-collision mechanism for semi-enclosed sound insulation screen of viaduct - Google Patents

Abstract

The utility model discloses an unexpected anticollision institution of semi-closed sound-proof screen of overpass, including overpass main part, guardrail post, protection screen, connecting block and square board, the last fixed surface of overpass main part is provided with the guardrail post, and the last fixed surface of guardrail post is provided with the fixed plate to the fixed protection screen that is provided with in inside of fixed plate, the surface of overpass main part is run through by the connecting block, and the end-to-end fixing of connecting block is provided with first magnetic block, and the fixed second magnetic block that is provided with in inside of overpass main part. This unexpected anticollision institution of semi-closed sound-proof screen of overpass, when the sound-proof screen received unexpected striking, can at first strike the cylinder piece of bottom for the connecting plate can produce and slide, makes drive gear and driven gear meshing, driven gear and change gear meshing, through change gear's fast revolution and square board meshing, the cylinder piece on ordering about the top pops out and causes the impact force to the thing that hits, reaches good effect.

Description

Accidental anti-collision mechanism for semi-enclosed sound insulation screen of viaduct

technical field

The utility model relates to the related technical field of viaducts, in particular to an accidental anti-collision mechanism for a semi-enclosed sound insulation screen of viaducts.

Background technique

The viaduct is a kind of bridge in which the road surface is constructed at high altitude in order to solve the road congestion, which is convenient for vehicles to travel without occupying the ground area, and the soundproof screen is a kind of barrier built at both ends of the viaduct to block the noise generated by the vehicle when driving. But this soundproof screen has some disadvantages:

First, since the noise barrier is installed at both ends of the viaduct as the noise blocking barrier on the viaduct, the general sound barrier does not have a collision-proof structure, which is easy to cause accidental vehicles to directly crash the sound barrier;

Second, when the sound insulation screen is impacted, it is easy to be damaged by direct impact force because it does not have buffering equipment.

Utility model content

The purpose of the present utility model is to provide an accidental anti-collision mechanism for a semi-enclosed sound insulation screen of a viaduct, so as to solve the problems of the above-mentioned background art that there is no accidental collision-proof structure and no buffer structure.

In order to achieve the above purpose, the utility model provides the following technical solutions: an accidental anti-collision mechanism for a semi-enclosed sound insulation screen of a viaduct, comprising a viaduct main body, a guardrail column, a protective screen, a connecting block and a square plate, and the upper surface of the viaduct main body is fixed. A guardrail column is provided, and a fixed plate is fixed on the upper surface of the guardrail column, and a protective screen is fixedly arranged inside the fixed plate. The outer surface of the viaduct main body is penetrated by a connecting block, and the end of the connecting block is fixedly provided with a first a magnetic block, and a second magnetic block is fixedly arranged inside the viaduct main body, the end of the connection block is fixedly connected with a first return spring, and the end of the first return spring is fixedly arranged on the inner surface of the viaduct main body, the guardrail column The outer surface of the connecting plate is penetrated by the connecting plate, and the end of the connecting plate is fixedly connected with a second return spring, and the end of the second return spring is fixedly arranged on the outer surface of the guardrail column, the upper surface of the connecting plate is connected with a transmission gear, and The upper surface of the transmission gear is connected with a driven gear, and the driven gear is located inside the fixed plate, the upper surface of the driven gear is connected with a speed change gear, and the upper surface of the speed change gear is connected with a square plate, and the square plate penetrates through the fixed plate On the outer surface of the plate, the end of the square plate is fixedly provided with a buffer block, and the top end of the square plate and the connecting block is fixedly provided with a connecting rod, and the connecting rod penetrates the outer surface of the cylindrical block.

Preferably, the guardrail posts and the fixed plate are symmetrically distributed with respect to the longitudinal center line of the viaduct main body, and the protective screen in the fixed plate is a polyester fiber sound-absorbing plate.

Preferably, the connecting block forms an elastic structure with the viaduct main body through a first return spring, the first magnetic block and the second magnetic force block on the connecting block form a homosexual repulsion structure, and the connecting block and the viaduct main body form a sliding structure.

Preferably, the connecting plate and the guardrail column form a sliding structure, and the connecting plate and the guardrail column form an elastic structure through the second return spring, and the connecting plate and the transmission gear are in meshing connection.

Preferably, the driven gear is meshed with the transmission gear and the transmission gear respectively, and the radius of the transmission gear is smaller than that of the transmission gear and the driven gear, and the radius of the transmission gear is the same as that of the driven gear.

Preferably, the square plate and the speed change gear are meshed and connected, the square plate and the fixed plate form a sliding structure, the connecting rod on the square plate and the cylindrical block form a rotating structure, and the buffer block on the square plate is made of rubber material.

Compared with the prior art, the beneficial effect of the utility model is: the accidental anti-collision mechanism of the semi-closed sound insulation screen of the viaduct,

1. When the sound insulation screen is accidentally hit, it will first hit the cylindrical block at the bottom end, so that the connecting plate will slide, so that the transmission gear meshes with the driven gear, and the driven gear meshes with the speed change gear. The plates are meshed, and the cylinder block at the top is driven to pop out to cause impact force on the impactor, and achieve good results;

2. When the connecting plate is subjected to excessive impact force, it will hit the connecting block, but since the connecting block is provided with a first return spring, the impact force can be reduced by the first return spring, and then the first magnetic block and The repulsive force of the second magnetic block weakens the impact force, effectively preventing the guardrail post from breaking, etc.;

3. Since the cylindrical block can rotate in the connecting block, when the cylindrical block is impacted from the side, the rotation of the cylindrical block will partially weaken the impact force, and guide the direction of the impacted object, which effectively weakens and prevents the vehicle from colliding with the guardrail in a straight line. on the column.

Description of drawings

Fig. 1 is the overall front sectional structure schematic diagram of the utility model;

Fig. 2 is the overall top view structure schematic diagram of the utility model;

Fig. 3 is the enlarged structural schematic diagram at A in Fig. 1 of the utility model;

FIG. 4 is a schematic view of the cross-sectional structure of the connecting side of the driven gear and the speed change gear of the present invention.

In the figure: 1. Main body of the viaduct; 2. Guardrail column; 3. Fixed plate; 4. Protective screen; 5. Connecting block; 6. The first return spring; 7. The first magnetic block; 8. The second magnetic block; 9 10, second return spring; 11, transmission gear; 12, driven gear; 13, speed change gear; 14, square plate; 15, connecting rod; 16, cylindrical block; 17, buffer block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: an accidental anti-collision mechanism for a semi-enclosed sound insulation screen of a viaduct, comprising a viaduct main body 1, a guardrail column 2, a fixed plate 3, a protection screen 4, a connecting block 5, The first return spring 6, the first magnetic block 7, the second magnetic block 8, the connecting plate 9, the second return spring 10, the transmission gear 11, the driven gear 12, the transmission gear 13, the square plate 14, the connecting rod 15, the cylinder Block 16 and buffer block 17, the upper surface of the viaduct main body 1 is fixedly provided with a guardrail post 2, and the upper surface of the guardrail post 2 is fixedly provided with a fixed plate 3, and the interior of the fixed plate 3 is fixedly provided with a protective screen 4, the viaduct main body 1 The outer surface of the bridge is penetrated by the connecting block 5, and the end of the connecting block 5 is fixedly provided with a first magnetic block 7, and the interior of the viaduct main body 1 is fixedly provided with a second magnetic block 8, and the end of the connecting block 5 is fixedly connected with a first reset Spring 6, and the end of the first return spring 6 is fixedly arranged on the inner surface of the viaduct main body 1, the outer surface of the guardrail column 2 is penetrated by the connecting plate 9, and the end of the connecting plate 9 is fixedly connected with the second return spring 10, and the first The ends of the two return springs 10 are fixedly arranged on the outer surface of the guardrail post 2, the upper surface of the connecting plate 9 is connected with a transmission gear 11, and the upper surface of the transmission gear 11 is connected with a driven gear 12, and the driven gear 12 is located on the fixed plate. 3, the upper surface of the driven gear 12 is connected with the speed change gear 13, and the upper surface of the speed change gear 13 is connected with a square plate 14, and the square plate 14 penetrates the outer surface of the fixed plate 3, and the end of the square plate 14 is fixedly provided with The buffer block 17 , and the top end of the square plate 14 and the connecting block 5 are fixedly provided with a connecting rod 15 , and the connecting rod 15 penetrates the outer surface of the cylindrical block 16 .

The guardrail column 2 and the fixed plate 3 are symmetrically distributed about the longitudinal center line of the viaduct main body 1, and the protective screen 4 in the fixed plate 3 is a polyester fiber sound-absorbing board. Since the protective screen 4 is a polyester fiber sound-absorbing board, it can pass through the polyester fiber. A large number of tiny connected pores of the sound-absorbing board absorb sound waves, causing the sound waves to produce friction in the pores to achieve the effect of blocking sound.

The connecting block 5 forms an elastic structure with the viaduct main body 1 through the first return spring 6 , and the first magnetic block 7 and the second magnetic block 8 on the connecting block 5 form a same-sex repulsive structure, and the connecting block 5 and the viaduct main body 1 form a sliding structure. structure, when the connecting block 5 is impacted and slides, the first return spring 6 will pull the connecting block 5, and through the mutual repulsion between the first magnetic block 7 and the second magnetic block 8, the second magnetic block 8 pushes the first The magnetic block 7 prevents the first magnetic block 7 from being close to each other and achieves good buffer performance.

The connecting plate 9 and the guardrail column 2 form a sliding structure, and the connecting plate 9 forms an elastic structure with the guardrail column 2 through the second return spring 10, and the connecting plate 9 and the transmission gear 11 are in meshing connection. When the connecting plate 9 slides, the connecting plate 9 will mesh with the transmission gear 11, so that the transmission gear 11 rotates.

The driven gear 12 is meshed with the transmission gear 11 and the transmission gear 13 respectively, and the radius of the transmission gear 13 is smaller than that of the transmission gear 11 and the driven gear 12, and the radius of the transmission gear 11 is the same as the radius of the driven gear 12, When the transmission gear 11 rotates, it meshes with the driven gear 12, and through the rotation of the driven gear 12, it meshes with the speed change gear 13, and then the speed is increased through the speed change gear 13 with a smaller radius.

The square plate 14 and the speed change gear 13 are in meshing connection, and the square plate 14 and the fixed plate 3 form a sliding structure, and the connecting rod 15 and the cylindrical block 16 on the square plate 14 form a rotating structure, and the buffer block 17 on the square plate 14 is The rubber material, when the speed change gear 13 rotates, will mesh with the square plate 14, which drives the square plate 14 to slide quickly through the cylindrical block 16 to perform the same impact buffer on the impactor. Since the buffer block 17 is made of rubber material, it can be effectively The square plate 14 is prevented from rapidly impacting on the fixing plate 3 , resulting in damage to the fixing plate 3 .

Working principle: When using the accidental anti-collision mechanism of the semi-enclosed sound insulation screen of the viaduct, according to Figure 1, Figure 2, Figure 3 and Figure 4, when the vehicle runs out of control in the main body 1 of the viaduct, the vehicle will first hit the cylinder at the bottom end On the block 16, because the cylindrical block 16 and the connecting rod 15 form a rotating structure, the rotation of the cylindrical block 16 will partially weaken the impact force and guide the vehicle to continue to drive forward, so as to achieve the purpose of buffering. When the force is applied, the connecting plate 9 under the action of the second return spring 10 will be pushed by the connecting rod 15, so that the connecting plate 9 slides and meshes with the transmission gear 11, and the transmission gear 11 rotates and meshes with the driven gear 12. The rotation meshes with the speed change gear 13, so that the speed change gear 13 will rapidly rotate and mesh with the square plate 14, which drives the square plate 14 to slide toward the vehicle, and pushes the vehicle through the cylindrical block 16 to prevent the vehicle from continuously hitting the fixed plate 3. The protective screen 4 is damaged, which effectively achieves the effect of accidental collision prevention;

When the vehicle hits too hard, according to FIG. 1 and FIG. 2 , the connecting plate 9 will quickly slide through the second return spring 10 to reduce the impact force, but since the connecting plate 9 will hit the connecting block 5 when it slides rapidly, the connecting block will 5 also slides outward, but because the connecting block 5 will be pulled by the first return spring 6 and the repulsive force of the first magnetic block 7 and the second magnetic block 8 when sliding, the impact force can be effectively weakened, Effective buffering can be achieved to prevent the guardrail post 2 from being damaged, and when the square plate 14 slides rapidly and hits the fixed plate 3, the impact force can be weakened by the buffer block 17 due to the buffer block 17 provided with the rubber material, and effectively. Through the softness of the buffer block 17 , the fixing plate 3 is prevented from being damaged by impact, and the overall practicability is increased.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an unexpected anticollision institution of semi-closed sound-proof screen of overpass, includes overpass main part (1), guardrail post (2), protection screen (4), connecting block (5) and square board (14), its characterized in that: the guardrail column (2) is fixedly arranged on the upper surface of the viaduct main body (1), the fixing plate (3) is fixedly arranged on the upper surface of the guardrail column (2), the protection screen (4) is fixedly arranged inside the fixing plate (3), the outer surface of the viaduct main body (1) is penetrated through by the connecting block (5), the tail end of the connecting block (5) is fixedly provided with the first magnetic block (7), the inside of the viaduct main body (1) is fixedly provided with the second magnetic block (8), the tail end of the connecting block (5) is fixedly connected with the first return spring (6), the tail end of the first return spring (6) is fixedly arranged on the inner surface of the viaduct main body (1), the outer surface of the guardrail column (2) is penetrated through by the connecting plate (9), the tail end of the connecting plate (9) is fixedly connected with the second return spring (10), and the tail end of the second return spring (10) is fixedly arranged on the outer surface of the guardrail column (2), the upper surface of connecting plate (9) is connected with drive gear (11), and the upper surface of drive gear (11) is connected with driven gear (12) to driven gear (12) are located the inside of fixed plate (3), the upper surface of driven gear (12) is connected with change gear (13), and the upper surface of change gear (13) is connected with square board (14), and square board (14) run through the surface of fixed plate (3), the fixed buffer block (17) that is provided with in end of square board (14), and the fixed connecting rod (15) that is provided with in top of square board (14) and connecting block (5) to connecting rod (15) run through the surface of cylinder piece (16).

2. The accidental collision avoidance mechanism of the semi-closed sound insulation screen of the viaduct bridge as claimed in claim 1, wherein: the guardrail posts (2) and the fixing plates (3) are symmetrically distributed about the longitudinal center line of the viaduct main body (1), and the protection screens (4) in the fixing plates (3) are polyester fiber sound-absorbing plates.

3. The accidental collision avoidance mechanism of the semi-closed sound insulation screen of the viaduct bridge as claimed in claim 1, wherein: the connecting block (5) and the viaduct main body (1) form an elastic structure through the first return spring (6), the first magnetic block (7) and the second magnetic block (8) on the connecting block (5) form a structure with the same poles repelling each other, and the connecting block (5) and the viaduct main body (1) form a sliding structure.

4. The accidental collision avoidance mechanism of the semi-closed sound insulation screen of the viaduct bridge as claimed in claim 1, wherein: the connecting plate (9) and the guardrail column (2) form a sliding structure, the connecting plate (9) and the guardrail column (2) form an elastic structure through a second return spring (10), and the connecting plate (9) is meshed with the transmission gear (11) and is connected with the transmission gear.

5. The accidental collision avoidance mechanism of the semi-closed sound insulation screen of the viaduct bridge as claimed in claim 1, wherein: the driven gear (12) is respectively in meshed connection with the transmission gear (11) and the speed change gear (13), the radius of the speed change gear (13) is smaller than that of the transmission gear (11) and the driven gear (12), and the radius of the transmission gear (11) is the same as that of the driven gear (12).

6. The accidental collision avoidance mechanism of the semi-closed sound insulation screen of the viaduct bridge as claimed in claim 1, wherein: the square plate (14) is connected with the speed changing gear (13) in a meshed mode, the square plate (14) and the fixing plate (3) form a sliding structure, the connecting rod (15) on the square plate (14) and the cylindrical block (16) form a rotating structure, and meanwhile the buffer block (17) on the square plate (14) is made of rubber materials.

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