Bridge expansion joint

Abstract

The application provides a bridge expansion joint device, and relates to the technical field of bridge expansion joints, which comprises a plurality of fixed frames and second comb plates, the upper surfaces of the fixed frames are provided with first comb plates, the first comb plates are in sliding connection with the second comb plates, the surfaces of the first comb plates are provided with a plurality of comb teeth, the comb teeth are in sliding connection with the second comb plates, the surfaces of the second comb plates are provided with anti-blocking structures, the anti-blocking structures comprise a plurality of material falling holes, material guiding assemblies for guiding the sliding of stones and sundries, vibration assemblies for assisting the sliding of stones and sundries, and storage assemblies for storing stones and sundries. The anti-blocking structures are arranged, so that when stones and sundries fall into the second comb plates, the stones and sundries can fall out of the second comb plates, the comb teeth can normally slide on the inner walls of the second comb plates, and workers can conveniently collect and process the stones and sundries.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge expansion joints, in particular to a bridge expansion device. BACKGROUND

[0002] The bridge expansion joint is a reserved joint used to overcome the damage caused by the mutual extrusion of the bridge deck due to thermal expansion and cold contraction. In real life, in order to facilitate the normal passage of vehicles through the bridge expansion joint, a device capable of expansion needs to be installed in the bridge expansion joint to ensure the smooth passage of vehicles.

[0003] Chinese patent application CN202010451957.3 discloses a bridge expansion joint device, which comprises a fixed comb plate and a movable comb plate. The fixed comb plate and the movable comb plate are connected below by a telescopic support device placed between the bridge expansion joints. The telescopic support device comprises a plurality of telescopic beams and a plurality of cross beams. The plurality of telescopic beams and the plurality of cross beams form a support device on the upper part of the gap of the expansion joint, supporting the movable comb plate on the part above the gap to prevent deformation of the movable comb plate. The present application has only a few spaced telescopic beams at the connection with the bridge expansion joint, which does not require treatment of the entire expansion joint and has low requirements for the regularity of the expansion joint, making it suitable for installation of large-scale bridge expansion joints.

[0004] The above-mentioned bridge expansion joint device still has the following technical problems: when using the expansion joint device, stones and other debris are likely to fall into the second comb plate. When the bridge expands due to heat, the comb teeth will slide along the inner wall of the second comb plate and press the stones and other debris. At this time, the stones and other debris are likely to cause damage or even breakage of the comb teeth, and it is difficult for the staff to quickly clean the stones and other debris. SUMMARY

[0005] The purpose of the present application is to solve the problem of the prior art that stones and other debris are likely to cause damage or even breakage of the comb teeth, and it is difficult for the staff to quickly clean the stones and other debris. A bridge expansion device is proposed.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a bridge expansion device, comprising a plurality of fixed frames and a second comb plate, the upper surface of each fixed frame is provided with a first comb plate, the first comb plate and the second comb plate are connected in sliding mode, the surface of the first comb plate is provided with a plurality of comb teeth, the comb teeth and the second comb plate are connected in sliding mode, the surface of the second comb plate is provided with an anti-blocking structure, the anti-blocking structure comprises a plurality of material falling holes, a material guiding assembly for guiding the sliding of stones and other debris, a vibration assembly for assisting the sliding of stones and other debris, and a storage assembly for storing stones and other debris.

[0007] The effect achieved by the above components is that: by arranging the anti-blocking structure, when stones and other sundries fall into the second comb plate, the stones and other sundries can fall out of the second comb plate, so that the comb teeth can normally slide on the inner wall of the second comb plate, and the stones and other sundries can be conveniently collected and treated by the staff.

[0008] Preferably, a plurality of the blanking holes are arranged on the surface of the second comb plate, the lower surface of the second comb plate is provided with a material guiding assembly, the material guiding assembly comprises two support plates, the support plates are fixedly connected to the lower surface of the second comb plate, and the side, where the two support plates are close to each other, is rotatably connected with a material guiding hopper; the surface of the second comb plate is provided with a vibration assembly, the vibration assembly comprises a groove arranged on the upper surface of the second comb plate, a transmission plate slidably connected to the inner wall of the groove on the second comb plate, two transmission rods fixedly connected to the lower surface of the transmission plate, the transmission rods slidably penetrating through the second comb plate, a top plate fixedly connected to the lower end of the transmission rod, a top block fixedly connected to the upper surface of the top plate, the top block slidably connected with the material guiding hopper, and springs sleeved on the arc surfaces of the transmission rods, the two ends of the springs being fixedly connected with the second comb plate and the top plate respectively.

[0009] The effect achieved by the above components is that: the stones and other sundries will fall into the material guiding hopper through the blanking holes, when a vehicle runs over the transmission plate, the transmission plate will slide downward along the inner wall of the groove and drive the transmission rod to slide, the sliding of the transmission rod will drive the top plate to slide, the sliding of the top plate will stretch the springs, at this time, the springs are in a stretched state, after the vehicle passes, the springs start to contract, the top plate will drive the top block to slide upward by the pulling force of the springs, the sliding of the top block will impact the material guiding hopper, at this time, the material guiding hopper will rotate upward along the surface of the support plate, the rotation of the material guiding hopper will vibrate the stones and other sundries on the inner wall of the material guiding hopper, so that the stones and other sundries can slide downward along the inner wall of the material guiding hopper.

[0010] Preferably, the upper end of the material guiding hopper is fixedly connected with a flexible strip, the flexible strip is made of polypropylene material, and the flexible strip is fixedly connected with the second comb plate.

[0011] The effect achieved by the above components is that: the flexible strip can prevent the stones and other sundries from falling off the inner wall of the material guiding hopper as much as possible, and the flexible strip made of polypropylene material can be bent, so as not to affect the rotation of the material guiding plate.

[0012] Preferably, the lower surface of the second comb plate is provided with a storage assembly, the storage assembly comprises two connecting rods fixedly connected to the lower surface of the second comb plate, and the lower end of each connecting rod is fixedly connected with a clamping seat, the inner wall of the clamping seat is slidably connected with a storage box, the side wall of the clamping seat is provided with a recess, and the storage box is located below the support plate.

[0013] The effect achieved by the above components is that the stone and other sundries can be stored and conveniently treated subsequently.

[0014] Preferably, the side wall of the storage box is provided with an auxiliary assembly, the auxiliary assembly comprises two clamping plates, the clamping plates are fixedly connected with the storage box, the inner walls of the two clamping plates are slidably connected with a sliding frame, the sliding frame is slidably connected with the storage box, and the surface of the sliding frame is fixedly connected with a pull rod.

[0015] The effect achieved by the above components is that when the stone and other sundries in the storage box need to be cleaned, the pull rod is pulled upward, the sliding of the pull rod drives the sliding frame to slide along the inner wall of the clearance groove, the sliding of the sliding frame drives the storage box to slide, at this time, the sliding frame drives the storage box to slide out of the inner wall of the clamping seat, and then the staff can clean the stone and other sundries.

[0016] Preferably, the side wall of the fixed frame is provided with a stable structure, the stable structure comprises a mounting groove, the mounting groove is formed in the side wall of the fixed frame, the inner wall of the mounting groove on the fixed frame is fixedly connected with two fixed rods, the arc surfaces of the two fixed rods are slidably sleeved with an adjusting plate, the adjusting plate is slidably connected with the inner wall of the mounting groove on the fixed frame, the surface of the adjusting plate is provided with a plurality of rectangular holes, the inner wall of the rectangular hole on the adjusting plate is rotatably connected with an anti-skid plate, the side wall of the fixed frame is provided with an anti-skid assembly, the anti-skid assembly comprises a rotating plate, the rotating plate is rotatably connected with the side wall of the fixed frame, the upper surface of the adjusting plate is fixedly connected with an arc-shaped block, and the inner wall of the arc-shaped block is slidably connected with the rotating plate.

[0017] The effect achieved by the above components is that the stable structure is provided to increase the contact area of the fixed frame and the concrete, so that the fixed frame can be more stable after installation.

[0018] Preferably, the inner wall of the rectangular hole on the adjusting plate is fixedly connected with a square plate at the top, a plurality of square plates are equally divided into two groups, the two groups of square plates are symmetrically distributed with respect to the vertical direction of the anti-skid plate, and the square plate is slidably connected with the anti-skid plate.

[0019] The effect achieved by the above components is that the plurality of square plates can be divided into two groups and rotated in opposite directions.

[0020] Preferably, the side wall of the adjusting plate is provided with a limiting assembly, the limiting assembly comprises an L-shaped plate, the short arm of the L-shaped plate is fixedly connected with the adjusting plate, the surface of the long arm of the L-shaped plate is slidably sleeved with a U-shaped plate, the inner wall of the U-shaped plate is slidably connected with the adjusting plate, the two sides of the long arm of the L-shaped plate are fixedly connected with trapezoidal blocks, the trapezoidal blocks are made of rubber, the inner wall of the U-shaped plate is fixedly connected with two protrusions, and the upper surface of the long arm of the L-shaped plate is fixedly connected with two baffle plates.

[0021] The effect achieved by the above components is that the U-shaped plate is slid upward along the surface of the long arm of the L-shaped plate, the sliding of the U-shaped plate drives the sliding of the convex block, when the convex block contacts the trapezoidal block, the surface of the trapezoidal block is deformed to tightly contact the convex block due to the rubber material of the trapezoidal block, the trapezoidal block achieves the effect of limiting the position of the convex block and further limiting the position of the U-shaped plate, the baffle achieves the effect of limiting the sliding distance of the U-shaped plate, the U-shaped plate contacts the anti-skid plate when sliding, the anti-skid plate rotates along the inner wall of the rectangular hole and contacts the square plate, the U-shaped plate achieves the effect of limiting the position of the anti-skid plate.

[0022] Preferably, the side wall of the second comb plate is provided with a shielding assembly, the shielding assembly comprises two rectangular plates, the rectangular plates are rotationally connected with the second comb plate, one side of the rectangular plate away from the second comb plate is fixedly connected with a circular tube, the inner wall of the circular tube is slidably connected with a steel rod, the circular arc surface of the two steel rods is fixedly connected with shielding cloth, the circular arc surface of the steel rod is fixedly connected with a bent plate, the vertical section of the bent plate is in the shape of "L", the surface of the long arm of the bent plate is threadedly connected with a screw rod, the circular arc surface of the circular tube is fixedly connected with an anti-falling plate, and the anti-falling plate is slidably connected with the circular arc surface of the screw rod.

[0023] The effect achieved by the above components is that the shielding structure is arranged to prevent as much as possible the falling of sundries into the first comb plate and the second comb plate during construction, thereby facilitating the construction of the staff and improving the convenience during the installation of the bridge expansion joint.

[0024] Preferably, one end of the steel rod is fixedly connected with a tapered block, and the tapered block is slidably connected with the inner wall of the circular tube.

[0025] The effect achieved by the above components is that the movement of the steel rod drives the sliding of the tapered block along the inner wall of the circular tube, the tapered block achieves the effect of guiding the sliding path of the steel rod and facilitating the insertion of the steel rod into the circular tube.

[0026] Compared with the prior art, the advantages and positive effects of the present application are that:

[0027] 1、The present application, by setting the anti-blocking structure, when the second comb plate falling have stone and other sundries, comb teeth along the inner wall of the second comb plate can be pushed into the stone and other sundries into the hole, at this time the stone and other sundries will fall through the hole into the material hopper, at this time the flexible strip can prevent the stone and other sundries from falling from the inner wall of the material hopper, when there is a vehicle rolling to the transmission plate, the transmission plate will slide along the inner wall of the groove and drive the transmission rod to slide, the transmission rod sliding will drive the top plate to slide, the top plate sliding will stretch the spring, at this time the spring is in the stretched state, when the vehicle passes, the spring begins to shrink, the top plate will be driven by the spring tension and the top block slides upward, the top block sliding will hit the material hopper, at this time the material hopper will rotate along the surface of the support plate upward, the material hopper rotating will make its inner wall of the stone and other sundries vibration, so as to facilitate the stone and other sundries along the inner wall of the material hopper down, at this time the stone and other sundries will fall into the storage box, when the stone and other sundries in the storage box need to be cleaned, pull up the pull rod, the pull rod sliding will drive the sliding frame along the inner wall of the slot to slide, the sliding frame sliding will drive the storage box to slide, at this time the sliding frame will drive the storage box from the inner wall of the card seat sliding out, then the staff can concentrate on cleaning the stone and other sundries, by setting the anti-blocking structure, when the stone and other sundries fall into the second comb plate, the stone and other sundries can fall from the second comb plate, so that the comb teeth can normally slide along the inner wall of the second comb plate, and the staff can also conveniently concentrate on the stone and other sundries processing.

[0028] 2. In this invention, by setting a stable structure, before installing the fixed frame, the U-shaped plate slides upward along the surface of the long arm of the L-shaped plate. The sliding of the U-shaped plate will cause the protrusion to slide. When the protrusion contacts the trapezoidal block, since the trapezoidal block is made of rubber, the surface of the trapezoidal block will form a shaped plate and make close contact with the protrusion. The trapezoidal block achieves the function of limiting the position of the protrusion and thus limiting the position of the U-shaped plate. The baffle achieves the function of limiting the sliding distance of the U-shaped plate. When the U-shaped plate slides, it will contact the anti-slip plate. At this time, the anti-slip plate will rotate along the inner wall of the rectangular hole and contact the square plate. The U-shaped plate achieves the function of limiting the position of the anti-slip plate. Then, the rotating plate is rotated upward to disengage the rotating plate from the arc-shaped block. Then, the adjusting plate is slid in along the inner wall of the mounting groove. At this time, the two fixing rods achieve the function of supporting the adjusting plate and limiting the sliding path of the adjusting plate. When it is necessary to install the fixed frame, During frame installation, rotate the rotating plate upwards again, then pull the adjusting plate out of the mounting slot. The sliding of the adjusting plate will cause the arc-shaped block to slide. When the arc-shaped block slides to the appropriate position, rotate the rotating plate so that it slides along the inner wall of the arc-shaped block. At this time, the rotating plate restricts the position of the arc-shaped block and thus restricts the position of the adjusting plate. Then slide the U-shaped plate downwards. At this time, the anti-slip plate will rotate along the inner wall of the rectangular hole due to its own weight. Due to the presence of the square plate, several square plates will be divided into two groups and rotate in opposite directions. When pouring concrete to fix the fixed frame and the first comb plate, the adjusting plate and several anti-slip plates can increase the contact area between the fixed frame and the concrete, thereby improving the stability of the fixed frame. By setting a stabilizing structure, the contact area between the fixed frame and the concrete is increased, so that the fixed frame can be more stable after installation.

[0029] 3. In this invention, by setting up a shielding component, when the shielding component needs to be used, rotating the rectangular plate will cause the circular tube to rotate. When the rectangular plate rotates to a suitable position, the steel rod is moved. The movement of the steel rod will cause the conical block to slide in along the inner wall of the circular tube. At this time, the conical block guides the sliding path of the steel rod, facilitating the insertion of the steel rod into the circular tube. The bending plate, with the help of the steel rod, will drive the screw to move. When the screw moves to a suitable position, rotating the screw will cause the screw to move towards the circular tube via the thread. At this time, the screw will contact the anti-detachment plate, and the anti-detachment plate will achieve the restriction. The screw position helps to prevent the steel rod from sliding out of the inner wall of the round tube. As the screw continues to move, it will abut against the arc surface of the round tube, further restricting the position of the steel rod. After the positions of both steel rods are restricted, the shielding cloth will shield the first and second comb plates, thereby preventing debris from falling into the first and second comb plates during construction. By setting up the shielding structure, the goal of preventing debris from falling into the first and second comb plates during construction is achieved, which facilitates the construction work and improves the convenience of installing bridge expansion joints. Attached Figure Description

[0030] Figure 1A perspective structural schematic view of a bridge expansion device is provided for the present application;

[0031] Figure 2 A perspective structural schematic view of a bridge expansion device is provided for the present application Figure 1 A partial structural schematic view from the rear;

[0032] Figure 3 A perspective structural schematic view of a bridge expansion device is provided for the present application Figure 2 A partial structural schematic view from the left;

[0033] Figure 4 A perspective structural schematic view of a bridge expansion device is provided for the present application Figure 2 A partial structural schematic view from the lower left;

[0034] Figure 5 A perspective structural schematic view of a bridge expansion device is provided for the present application Figure 1 A partial structural schematic view from the upper;

[0035] Figure 6 A structural schematic view of a material guiding assembly of a bridge expansion device is provided for the present application;

[0036] Figure 7 A partial structural schematic view of a vibration assembly of a bridge expansion device is provided for the present application;

[0037] Figure 8 A structural schematic view of a storage assembly of a bridge expansion device is provided for the present application;

[0038] Figure 9 A partial structural schematic view of a storage assembly of a bridge expansion device is provided for the present application;

[0039] Figure 10 A structural schematic view of a fixed frame of a bridge expansion device is provided for the present application;

[0040] Figure 11 A structural schematic view of a bridge expansion device is provided for the present application Figure 10 A structural schematic view from the left;

[0041] Figure 12 A partial structural schematic view of a stable structure of a bridge expansion device is provided for the present application;

[0042] Figure 13 A structural schematic view of an L-shaped plate of a bridge expansion device is provided for the present application;

[0043] Figure 14 A structural schematic view of a U-shaped plate of a bridge expansion device is provided for the present application;

[0044] Figure 15 A structural schematic view of a bridge expansion device is provided for the present application Figure 2A partial structural schematic diagram of a shielding structure of a bridge expansion device;

[0045] Figure 16 A partial structural schematic diagram of a shielding structure of a bridge expansion device is proposed for the present application;

[0046] Figure 17 A shielding structure of a bridge expansion device is proposed for the present application; Figure 16 An enlarged view of A in FIG. 1.

[0047] Fig. 1 is a partial structural schematic diagram of a shielding structure of a bridge expansion device according to the present application. DETAILED DESCRIPTION

[0048] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the present application will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, and therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0050] Embodiment 1, as Figure 1 and Figure 2The present application provides a bridge expansion joint device, including several fixed frames 1 and second comb plates 3, the upper surface of several fixed frames 1 is installed with first comb plates 2, the first comb plate 2 is slidably connected with the second comb plate 3, the surface of the first comb plate 2 is installed with several comb teeth 4, the comb tooth 4 is slidably connected with the second comb plate 3, the surface of the second comb plate 3 is provided with anti-blocking structure 5, by setting the anti-blocking structure 5, when the stone and other sundries fall into the second comb plate 3, the stone and other sundries can fall from the second comb plate 3, so that the comb tooth 4 can normally slide on the inner wall of the second comb plate 3, and the stone and other sundries can be conveniently collected and treated by the staff. The side wall of the fixed frame 1 is provided with a stable structure 6, by setting the stable structure 6, the contact area of the fixed frame 1 and the concrete is increased, so that the fixed frame 1 can be more stable after installation. The side wall of the second comb plate 3 is provided with a shielding assembly 7, by setting the shielding structure, the stone and other sundries falling into the first comb plate 2 and the second comb plate 3 during construction is prevented as much as possible, so that the staff can conveniently construct, and the convenience of installing the bridge expansion joint is improved.

[0051] The specific setting and effect of the anti-blocking structure 5, the stable structure 6 and the shielding assembly 7 will be described below.

[0052] As Figures 2-9As shown, the anti-blocking structure 5 comprises a plurality of material falling holes 51, a material guiding assembly 52 for guiding the sliding of stones and other sundries, a vibration assembly 53 for assisting the sliding of stones and other sundries, and a storage assembly 54 for storing stones and other sundries. The plurality of material falling holes 51 are formed on the surface of the second comb plate 3, the lower surface of the second comb plate 3 is provided with the material guiding assembly 52, the material guiding assembly 52 comprises two support plates 521 fixedly connected to the lower surface of the second comb plate 3, and the side close to each other of the two support plates 521 is rotatably connected with a material guiding hopper 522, the surface of the second comb plate 3 is provided with the vibration assembly 53, the vibration assembly 53 comprises a groove 531 formed on the upper surface of the second comb plate 3, a transmission plate 532 slidably connected to the inner wall of the groove 531 on the second comb plate 3, two transmission rods 533 fixedly connected to the lower surface of the transmission plate 532 and slidably penetrating through the second comb plate 3, a top plate 534 fixedly connected to the lower end of the transmission rod 533, a top block 535 fixedly connected to the upper surface of the top plate 534, the top block 535 being slidably connected with the material guiding hopper 522, a spring 536 sleeved on the arc surface of the transmission rod 533, and the two ends of the spring 536 being fixedly connected with the second comb plate 3 and the top plate 534 respectively. Stones and other sundries will fall into the material guiding hopper 522 through the material falling holes 51, when a vehicle rolls on the transmission plate 532, the transmission plate 532 will slide downward along the inner wall of the groove 531 and drive the transmission rod 533 to slide, the sliding of the transmission rod 533 will drive the top plate 534 to slide, the sliding of the top plate 534 will stretch the spring 536, at this time, the spring 536 is in a stretched state, after the vehicle passes, the spring 536 starts to contract, the top plate 534 will drive the top block 535 to slide upward by means of the pulling force of the spring 536, the sliding of the top block 535 will impact the material guiding hopper 522, at this time, the material guiding hopper 522 will rotate upward along the surface of the support plate 521, the rotation of the material guiding hopper 522 will make the stones and other sundries in the inner wall thereof vibrate, thereby facilitating the stones and other sundries to slide downward along the inner wall of the material guiding hopper 522.

[0053] As Figures 2-9As shown, the upper end of the material guide hopper 522 is fixedly connected with a flexible strip 523, the flexible strip 523 is made of polypropylene material, the flexible strip 523 is fixedly connected with the second comb plate 3, the flexible strip 523 can prevent stones and other sundries from falling from the inner wall of the material guide hopper 522 as much as possible, and the flexible strip 523 made of polypropylene material can also be bent, so it will not affect the rotation of the guide plate. The lower surface of the second comb plate 3 is provided with a storage assembly 54, the storage assembly 54 includes two connecting rods 541, the connecting rods 541 are fixedly connected to the lower surface of the second comb plate 3, the lower ends of the two connecting rods 541 are fixedly connected with a clamping seat 542, the inner wall of the clamping seat 542 is slidably connected with a storage box 543, the side wall of the clamping seat 542 is provided with a gap slot 544, the storage box 543 is located below the supporting plate 521, by setting the storage assembly 54, the stones and other sundries can be stored, and the subsequent concentrated processing is facilitated. The side wall of the storage box 543 is provided with an auxiliary assembly 545, the auxiliary assembly 545 includes two clamping plates 5451, the clamping plates 5451 are fixedly connected with the storage box 543, the inner walls of the two clamping plates 5451 are slidably connected with a sliding frame 5452, the sliding frame 5452 is slidably connected with the storage box 543, the surface of the sliding frame 5452 is fixedly connected with a pull rod 5453, when it is necessary to clean the stones and other sundries in the storage box 543, the pull rod 5453 is pulled upward, the sliding of the pull rod 5453 will drive the sliding frame 5452 to slide along the inner wall of the gap slot 544, the sliding of the sliding frame 5452 will drive the storage box 543 to slide, at this time the sliding frame 5452 will drive the storage box 543 to slide out of the inner wall of the clamping seat 542, then the staff can concentrate on cleaning the stones and other sundries.

[0054] As shown in the figure, Figures 10-14 The stable structure 6 includes a mounting groove 61, the mounting groove 61 is provided on the side wall of the fixed frame 1, two fixed rods 62 are fixedly connected to the inner wall of the mounting groove 61 on the fixed frame 1, an adjusting plate 63 is slidably sleeved on the arc surfaces of the two fixed rods 62, the adjusting plate 63 is slidably connected with the inner wall of the mounting groove 61 on the fixed frame 1, a plurality of rectangular holes 64 are provided on the surface of the adjusting plate 63, an anti-skid plate 65 is rotatably connected to the inner wall of the rectangular hole 64 on the adjusting plate 63, the side wall of the fixed frame 1 is provided with an anti-skid assembly 68, the anti-skid assembly 68 includes a rotating plate 681, the rotating plate 681 is rotatably connected to the side wall of the fixed frame 1, an arc-shaped block 682 is fixedly connected to the upper surface of the adjusting plate 63, the inner wall of the arc-shaped block 682 is slidably connected with the rotating plate 681. The inner wall of the top of the rectangular hole 64 on the adjusting plate 63 is fixedly connected with a square plate 66, the plurality of square plates 66 are equally divided into two groups, the two groups of square plates 66 are symmetrically distributed with respect to the vertical direction of the anti-skid plate 65, the square plate 66 is slidably connected with the anti-skid plate 65, by setting the square plate 66, the plurality of square plates 66 can be divided into two groups and rotated in opposite directions.

[0055] As shown in the figure, Figures 10-14As shown in the figure, the limiting assembly 67 comprises an L-shaped plate 671, the short arm of the L-shaped plate 671 is fixedly connected with the adjusting plate 63, the surface of the long arm of the L-shaped plate 671 is sleeved with a U-shaped plate 672, the inner wall of the U-shaped plate 672 is slidably connected with the adjusting plate 63, both sides of the long arm of the L-shaped plate 671 are fixedly connected with trapezoidal blocks 673, the trapezoidal blocks 673 are made of rubber, the inner wall of the U-shaped plate 672 is fixedly connected with two protrusions 674, the upper surface of the long arm of the L-shaped plate 671 is fixedly connected with two baffle plates 675, the U-shaped plate 672 is slid upward along the surface of the long arm of the L-shaped plate 671, the sliding of the U-shaped plate 672 will drive the protrusions 674 to slide, when the protrusions 674 contact the trapezoidal blocks 673, because the trapezoidal blocks 673 are made of rubber, at this time the surface of the trapezoidal blocks 673 will be shaped and tightly contact the protrusions 674, the trapezoidal blocks 673 achieve the effect of limiting the position of the protrusions 674 and further limiting the position of the U-shaped plate 672, the baffle plates 675 achieve the effect of limiting the sliding distance of the U-shaped plate 672, when the U-shaped plate 672 slides, it will contact the anti-skid plate 65, at this time the anti-skid plate 65 will rotate along the inner wall of the rectangular hole 64 and contact the square plate 66, the U-shaped plate 672 achieves the effect of limiting the position of the anti-skid plate 65.

[0056] As shown in the figure, Figure 15 and Figure 16 and Figure 17 As shown in the figure, the shielding assembly 7 comprises two rectangular plates 71, the rectangular plates 71 are rotatably connected with the second comb plate 3, the side, away from the second comb plate 3, of the rectangular plate 71 is fixedly connected with a circular tube 72, the inner wall of the circular tube 72 is slidably connected with steel rods 73, the circular arc surface of the two steel rods 73 is fixedly connected with shielding cloth 74, the circular arc surface of the steel rods 73 is fixedly connected with bent plates 75, the vertical section of the bent plate 75 is in the shape of "L", the surface of the long arm of the bent plate 75 is threadedly connected with a screw rod 76, the circular arc surface of the circular tube 72 is fixedly connected with an anti-coming-off plate 77, the anti-coming-off plate 77 is slidably connected with the circular arc surface of the screw rod 76. One end of the steel rod 73 is fixedly connected with a conical block 78, the conical block 78 is slidably connected with the inner wall of the circular tube 72, the movement of the steel rod 73 will drive the conical block 78 to slide into the inner wall of the circular tube 72, at this time the conical block 78 achieves the effect of guiding the sliding path of the steel rod 73, which facilitates the insertion of the steel rod 73 into the circular tube 72.

[0057] The overall working principle is: when the second comb plate 3 falls in the stone and other sundries, the comb teeth 4 along the inner wall of the second comb plate 3 can push the stone and other sundries into the falling hole 51, at this time the stone and other sundries will fall into the guide hopper 522 through the falling hole 51, at this time the flexible strip 523 can prevent the stone and other sundries from falling from the inner wall of the guide hopper 522 as much as possible, when the vehicle rolls to the transmission plate 532, the transmission plate 532 will slide down along the inner wall of the groove 531 and drive the transmission rod 533 to slide, the transmission rod 533 slides and drives the top plate 534 to slide, the top plate 534 slides and stretches the spring 536, at this time the spring 536 is in the stretched state, after the vehicle passes, the spring 536 begins to contract, the top plate 534 will drive the top block 535 to slide upward with the help of the tension of the spring 536, the top block 535 slides and hits the guide hopper 522, at this time the guide hopper 522 will rotate upward along the surface of the support plate 521, the guide hopper 522 rotates and makes the stone and other sundries in the inner wall vibrate, so that the stone and other sundries can slide down along the inner wall of the guide hopper 522, at this time the stone and other sundries will fall into the storage box 543, when it is necessary to clean the stone and other sundries in the storage box 543, pull up the pull rod 5453, the pull rod 5453 slides and drives the sliding frame 5452 to slide along the inner wall of the let go slot 544, the sliding frame 5452 slides and drives the storage box 543 to slide, at this time the sliding frame 5452 drives the storage box 543 to slide out from the inner wall of the clamping seat 542, then the workers can concentrate on cleaning the stone and other sundries.

[0058] When it is needed to install the fixed frame 1, slide the U-shaped plate 672 upward along the surface of the long arm of the L-shaped plate 671, the sliding of the U-shaped plate 672 will drive the convex block 674 to slide, when the convex block 674 contacts with the trapezoidal block 673, since the trapezoidal block 673 is made of rubber, the surface of the trapezoidal block 673 will be deformed to tightly contact with the convex block 674, the trapezoidal block 673 achieves the effect of limiting the position of the convex block 674 and further limiting the position of the U-shaped plate 672, the baffle 675 achieves the effect of limiting the sliding distance of the U-shaped plate 672, when the U-shaped plate 672 slides, it will contact with the anti-skid plate 65, at this time, the anti-skid plate 65 will rotate along the inner wall of the rectangular hole 64 and contact with the square plate 66, the U-shaped plate 672 achieves the effect of limiting the position of the anti-skid plate 65, then rotate the rotating plate 681 upward, then slide the adjusting plate 63 into the installation slot 61, at this time, the two fixed rods 62 achieve the effect of supporting and limiting the sliding path of the adjusting plate 63, when it is needed to install the fixed frame 1, rotate the rotating plate 681 upward again, then pull out the adjusting plate 63 from the installation slot 61, the sliding of the adjusting plate 63 will drive the arc-shaped block 682 to slide, when the arc-shaped block 682 slides to the appropriate position, rotate the rotating plate 681, so that the rotating plate 681 slides along the inner wall of the arc-shaped block 682 and enters into the arc-shaped block 682, at this time, the rotating plate 681 achieves the effect of limiting the position of the arc-shaped block 682 and further limiting the position of the adjusting plate 63, then slide the U-shaped plate 672 downward, at this time, the anti-skid plate 65 will rotate along the inner wall of the rectangular hole 64 due to its own gravity, since the square plate 66 exists, at this time, the square plates 66 will be divided into two groups and rotate in opposite directions, when the fixed frame 1 and the first comb plate 2 are fixed by pouring concrete, the adjusting plate 63 and the anti-skid plates 65 can increase the contact area between the fixed frame 1 and the concrete, thereby improving the stability of the fixed frame 1.

[0059] When it is needed to use the shielding assembly 7, rotate the rectangular plate 71, the rotating of the rectangular plate 71 will drive the circular tube 72 to rotate, when the rectangular plate 71 rotates to the appropriate position, move the steel rod 73, the moving of the steel rod 73 will drive the tapered block 78 to slide along the inner wall of the circular tube 72 and enter into the circular tube 72, at this time, the tapered block 78 achieves the effect of guiding the sliding path of the steel rod 73, which is convenient for inserting the steel rod 73 into the circular tube 72, the bending plate 75 will drive the screw rod 76 to move by moving the steel rod 73, when the screw rod 76 moves to the appropriate position, rotate the screw rod 76, the screw rod 76 will move toward the circular tube 72 by means of the thread, at this time, the screw rod 76 will contact with the anti-dropping plate 77, the anti-dropping plate 77 achieves the effect of limiting the position of the screw rod 76 and further preventing the steel rod 73 from sliding out of the inner wall of the circular tube 72, the screw rod 76 will stop at the circular arc surface of the circular tube 72 by continuing to move, the screw rod 76 achieves the effect of further limiting the position of the steel rod 73, after the positions of the two steel rods 73 are limited, the shielding cloth 74 will shield the first comb plate 2 and the second comb plate 3, thereby preventing foreign matters from falling into the first comb plate 2 and the second comb plate 3 during the construction process.

[0060] The above descriptions are only the preferred embodiments of the present application, not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical contents into equivalent embodiments with equivalent changes, and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solution of the present application, still belongs to the protection scope of the present application.

Claims

1. A bridge expansion joint comprising a number of fixed frames (1) and second furring boards (3), characterized in that: The upper surface of the fixed frame (1) is provided with a first comb plate (2), the first comb plate (2) is slidably connected with a second comb plate (3), the surface of the first comb plate (2) is provided with a plurality of comb teeth (4), the comb teeth (4) are slidably connected with the second comb plate (3), the surface of the second comb plate (3) is provided with an anti-blocking structure (5), the anti-blocking structure (5) comprises a plurality of blanking holes (51), a material guiding assembly (52) for guiding the sliding of stones, a vibrating assembly (53) for assisting the sliding of stones, and a storage assembly (54) for storing stones. A plurality of blanking holes (51) are arranged on the surface of the second comb plate (3), the lower surface of the second comb plate (3) is provided with a material guiding assembly (52), the material guiding assembly (52) comprises two supporting plates (521) fixedly connected to the lower surface of the second comb plate (3), the side close to each other of the two supporting plates (521) is rotatably connected with a material guiding hopper (522), the surface of the second comb plate (3) is provided with a vibration assembly (53), the vibration assembly (53) comprises a groove (531) arranged on the upper surface of the second comb plate (3), the inner wall of the groove (531) is slidably connected with a transmission plate (532), the lower surface of the transmission plate (532) is fixedly connected with two transmission rods (533), the transmission rods (533) slidably penetrate through the second comb plate (3), the lower end of the transmission rod (533) is fixedly connected with a top plate (534), the upper surface of the top plate (534) is fixedly connected with a top block (535), the top block (535) is slidably connected with the material guiding hopper (522), the circular surface of the transmission rod (533) is sleeved with a spring (536), the two ends of the spring (536) are fixedly connected with the second comb plate (3) and the top plate (534) respectively; the upper end of the material guiding hopper (522) is fixedly connected with a flexible strip (523), the flexible strip (523) is made of polypropylene material, and the flexible strip (523) is fixedly connected with the second comb plate (3); the lower surface of the second comb plate (3) is provided with a storage assembly (54), the storage assembly (54) comprises two connecting rods (541) fixedly connected to the lower surface of the second comb plate (3), the lower end of the two connecting rods (541) is fixedly connected with a clamping seat (542), the inner wall of the clamping seat (542) is slidably connected with a storage box (543), the side wall of the clamping seat (542) is provided with a recess slot (544), and the storage box (543) is located below the supporting plate (521); the side wall of the storage box (543) is provided with an auxiliary assembly (545), the auxiliary assembly (545) comprises two clamping plates (5451) fixedly connected with the storage box (543), the inner wall of the two clamping plates (5451) is slidably connected with a sliding frame (5452), the sliding frame (5452) is slidably connected with the storage box (543), and the surface of the sliding frame (5452) is fixedly connected with a pull rod (5453).

2. A bridge expansion joint according to claim 1, characterised in that: The side wall of the fixed frame (1) is provided with a stable structure (6), the stable structure (6) comprises a mounting groove (61), the mounting groove (61) is opened in the side wall of the fixed frame (1), the inner wall of the mounting groove (61) on the fixed frame (1) is fixedly connected with two fixed rods (62), the circular arc surface of the two fixed rods (62) is slidably sleeved with an adjusting plate (63), the adjusting plate (63) is slidably connected with the inner wall of the mounting groove (61) on the fixed frame (1), a plurality of rectangular holes (64) are formed in the surface of the adjusting plate (63), the inner wall of the rectangular hole (64) on the adjusting plate (63) is rotatably connected with an anti-skid plate (65), the side wall of the fixed frame (1) is provided with an anti-skid assembly (68), the anti-skid assembly (68) comprises a rotating plate (681), the rotating plate (681) is rotatably connected with the side wall of the fixed frame (1), the upper surface of the adjusting plate (63) is fixedly connected with an arc-shaped block (682), and the inner wall of the arc-shaped block (682) is slidably connected with the rotating plate (681).

3. A bridge expansion joint according to claim 2, characterised in that: The inner wall top of the rectangular hole (64) on the adjusting plate (63) is fixedly connected with a square plate (66), a plurality of square plates (66) are equally divided into two groups, the two groups of square plates (66) are symmetrically distributed with respect to the vertical direction of the anti-skid plate (65), and the square plate (66) is slidably connected with the anti-skid plate (65).

4. A bridge expansion joint according to claim 3, characterised in that: The side wall of the adjusting plate (63) is provided with a limiting assembly (67), the limiting assembly (67) comprises an L-shaped plate (671), the short arm of the L-shaped plate (671) is fixedly connected with the adjusting plate (63), the surface of the long arm of the L-shaped plate (671) is slidably sleeved with a U-shaped plate (672), the inner wall of the U-shaped plate (672) is slidably connected with the adjusting plate (63), and the two sides of the long arm of the L-shaped plate (671) are fixedly connected with trapezoidal blocks (673), the trapezoidal blocks (673) are made of rubber, the inner wall of the U-shaped plate (672) is fixedly connected with two convex blocks (674), and the upper surface of the long arm of the L-shaped plate (671) is fixedly connected with two baffle plates (675).

5. A bridge expansion joint as defined in claim 1, wherein: The side wall of the second comb plate (3) is provided with a shielding assembly (7), the shielding assembly (7) comprises two rectangular plates (71), the rectangular plates (71) are rotatably connected with the second comb plate (3), one side of the rectangular plate (71) away from the second comb plate (3) is fixedly connected with a circular tube (72), the inner wall of the circular tube (72) is slidably connected with a steel rod (73), the circular arc surface of the two steel rods (73) is fixedly connected with a shielding cloth (74), the circular arc surface of the steel rod (73) is fixedly connected with a bent plate (75), the vertical section of the bent plate (75) is in the shape of "L", the surface of the long arm of the bent plate (75) is threadedly connected with a screw rod (76), the circular arc surface of the circular tube (72) is fixedly connected with an anti-dropping plate (77), and the circular arc surface of the anti-dropping plate (77) is slidably connected with the screw rod (76).

6. A bridge expansion joint according to claim 5, characterised in that: One end of the steel rod (73) is fixedly connected with a tapered block (78), and the tapered block (78) is slidably connected with the inner wall of the circular tube (72).

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