A new and old roadbed widening splicing structure

Abstract

The application discloses a new and old roadbed widening splicing structure and belongs to the technical field of construction equipment. The new and old roadbed widening splicing structure comprises a main shell, a material discharging plate group, a transmission component and a rack assembly. The main shell is internally provided with a storage cavity and a side cavity. The material discharging plate group assembly comprises a bottom supporting plate and a material discharging plate. The material discharging plate is slidingly assembled in the storage cavity and is used for cooperating with the internal cavity of the storage cavity to store sand and stones. The transmission component is movably arranged in the side cavity and is used for controlling the movement of the bottom supporting plate and the material discharging plate. The rack assembly is used for detecting the settlement difference between the new roadbed and the old roadbed. The storage cavity and the side cavity are arranged in the main shell. The bottom supporting plate and the material discharging plate which can elastically discharge sand and stones are arranged in the storage cavity. In the process of rapid settlement of the soil layer at the bottom of the new roadbed, the transmission component in the side cavity can be driven to move, so that the material discharging plate discharges the sand and stones in the storage cavity into the settlement cavity for filling, and the fracture between the new roadbed and the old roadbed caused by uneven settlement is avoided.

Description

Technical Field

[0001] This invention belongs to the field of construction equipment technology, specifically relating to a structure for widening and splicing old and new roadbeds. Background Technology

[0002] After the road widening and reconstruction project is completed, longitudinal cracks often appear on the road surface above the old and new roadbeds. The root cause of the cracks is the uneven settlement of the old and new roadbeds and the fact that the interface strength of the old and new roadbeds is lower than the strength of the structural layer material itself. It is precisely because of the large bending tensile stress and low interface strength at the junction of the old and new roadbeds that cracks are very easy to occur in such places, resulting in longitudinal cracks often appearing at the junction.

[0003] Cracks and other defects are common, especially in soft soil sections. Newly widened roadbeds experience significant settlement after construction, while the consolidation settlement of the old roadbeds is largely complete. The inconsistent settlement at the junction of the new and old roadbeds creates a relatively large differential settlement between them, which is the main cause of road cracks. Currently, the existing technical means on the market is to fill the new roadbed section with multiple layers of foundation stones to reduce the settlement difference between the new and old roadbeds. However, for some sections with loose soil, it is still impossible to completely avoid settlement and cracking of the new and old roadbeds. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a new and old roadbed widening and splicing structure to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A new roadbed widening and splicing structure includes a shell component, which includes a main shell, a storage cavity, a side retention cavity, and a top slot. The main shell is provided with a storage cavity and a side retention cavity. Two sets of the side retention cavities are provided on both sides of the storage cavity. The top of the storage cavity is also provided with several top slots. The main shell is located on one side of the bottom of the new roadbed.

[0007] A base plate component, the base plate component including a base plate, the base plate being disposed at the bottom of the main housing and fixedly connected to the main housing;

[0008] A discharge plate assembly, comprising a bottom support plate and a discharge plate, wherein the bottom support plate and the discharge plate are slidably assembled in a storage cavity, and the top of the discharge plate is used to fit the inner cavity of the storage cavity to hold sand and gravel; an energy-storing spring is provided between the bottom support plate and the storage cavity, and an energy-storing spring is also provided between the bottom support plate and the discharge plate.

[0009] A transmission component, which is movably disposed in the side cavity, is used to control the movement of the bottom support plate and the discharge plate;

[0010] A frame assembly is installed on one side of the bottom of the old roadbed and is used to detect the settlement difference between the new roadbed and the old roadbed.

[0011] As a further embodiment of the present invention, the housing component further includes an inner groove and a sliding piece, the top groove is disposed on one side of the side cavity, and the sliding piece is limited and slidably assembled in the inner groove.

[0012] As a further embodiment of the present invention, the base plate component further includes support legs, and a plurality of the support legs are fixedly disposed at the bottom of the base plate and are disposed facing the side of the new roadbed.

[0013] As a further embodiment of the present invention, the discharge plate assembly further includes a first bottom groove, a first sliding rod, a second bottom groove, and a second sliding rod. The first bottom groove is fixedly disposed at the bottom of the storage cavity and at the bottom of the bottom support plate, and the first sliding rod is slidably inserted into the first bottom groove. The second bottom groove is fixedly disposed at the top of the bottom support plate, and the second sliding rod is fixedly disposed at the bottom of the discharge plate, and the second sliding rod is slidably inserted into the second bottom groove.

[0014] As a further embodiment of the present invention, the discharge plate assembly further includes a first locking piece and a second locking piece. The first locking piece is slidably inserted between the first bottom groove and the first slide rod to limit the relative sliding between the first bottom groove and the first slide rod. The second locking piece is slidably inserted between the second bottom groove and the second slide rod to limit the relative sliding between the second bottom groove and the second slide rod.

[0015] As a further embodiment of the present invention, the transmission component includes a driven rod, a toothed plate, a driven gear, a transmission gear, a take-up drum, and a rope. The driven rod is fixedly mounted on a slide plate, and a toothed plate is fixedly provided on one side of the rod. The driven gear is rotatably mounted in a side cavity, with one end meshing with the toothed plate and the other end linked to the transmission gear. The transmission gear meshes with the first locking plate. One end of the rope is movably connected to the second locking plate, and the other end is assembled with the take-up drum on one side of the driven gear.

[0016] As a further embodiment of the present invention, the frame assembly includes a support plate, a slotted plate, slotted teeth, and a base frame. The support plate is arranged on the outside of the main housing and spaced apart from the main housing. Two sets of slotted plates are fixedly arranged on the support plate. Several slotted teeth in opposite directions are staggered on the slotted plates. The base frame is also fixedly connected to the bottom of the support plate. The base frame is fixedly mounted on the sliding plate.

[0017] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0018] This invention provides a storage cavity and a side retention cavity in the main shell. The storage cavity is equipped with a bottom support plate and a discharge plate that can elastically discharge sand and gravel. During the rapid settlement of the soil layer at the base of the new roadbed, the transmission component in the side retention cavity can be moved, thereby driving the discharge plate to discharge the sand and gravel in the storage cavity into the settlement cavity for filling, thus avoiding the breakage caused by uneven settlement between the new and old roadbeds. Attached Figure Description

[0019] Figure 1 This is a partial cross-sectional view of a widened and spliced ​​structure of old and new roadbeds provided in one embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of a structure for widening and splicing old and new roadbeds provided in one embodiment of the present invention.

[0021] Figure 3 This is a front structural diagram of a new and old roadbed widening and splicing structure provided in one embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure marked A in the attached drawing of a new and old roadbed widening and splicing structure provided in one embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the back structure of a widened and spliced ​​structure of old and new roadbeds provided in one embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure marked B in the attached drawing of a new and old roadbed widening and splicing structure provided in one embodiment of the present invention.

[0025] Reference numerals: 1-Shell component, 101-Main shell, 102-Storage cavity, 103-Side cavity, 104-Top slot, 105-Inner slot, 106-Sliding piece, 2-Base plate component, 201-Base plate, 202-Support leg, 3-Discharge plate assembly, 301-Bottom support plate, 302-Discharge plate, 303-First bottom slot, 304-First sliding rod, 305-Second bottom slot, 306-Second sliding rod, 307-First locking piece, 308-Second locking piece, 4-Transmission component, 401-Driven rod, 402-Gear plate, 403-Driven gear, 404-Transmission gear, 405-Rewinding drum, 406-Rope, 5-Frame assembly, 501-Support plate, 502-Slot plate, 503-Groove tooth, 504-Base frame. Detailed Implementation

[0026] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please see Figures 1-6In one embodiment of the present invention, a widening and splicing structure for new and old roadbeds includes a shell component 1, which includes a main shell 101, a storage cavity 102, side retention cavities 103, and a top slot 104. The main shell 101 has a storage cavity 102 and side retention cavities 103 inside, with two sets of side retention cavities 103 located on both sides of the storage cavity 102. The top of the storage cavity 102 is also provided with several top slots 104, and the main shell 101 is located on one side of the bottom of the new roadbed. A bottom plate component 2 includes a bottom plate 201, which is located at the bottom of the main shell 101 and fixedly connected to it. A discharge plate assembly 3 is also included. The discharge plate assembly 3 includes a bottom support plate 301 and a discharge plate 302, which are slidably assembled in the storage cavity 102. The top of the discharge plate 302 is used to fit the inner cavity of the storage cavity 102 to hold sand and gravel. An energy-storing spring is provided between the bottom support plate 301 and the storage cavity 102, and an energy-storing spring is also provided between the bottom support plate 301 and the discharge plate 302. A transmission component 4 is movably disposed in the side retention cavity 103 and is used to control the movement of the bottom support plate 301 and the discharge plate 302. A frame assembly 5 is disposed on one side of the bottom of the old roadbed and is used to detect the settlement difference between the new roadbed and the old roadbed.

[0028] In practical application, when splicing new and old roadbeds using this structure, the main shell 101 is embedded in the soil layer at the base of the new roadbed, and the frame assembly 5 is embedded in the soil layer at the base of the old roadbed. The main shell 101 contains a storage cavity 102 and two independent side-reservoir cavities 103. A discharge plate 302 is slidably disposed in the storage cavity 102, and a certain amount of sand and gravel is filled between the discharge plate 302 and the inner cavity of the storage cavity 102. When the soil layer on one side of the new roadbed collapses due to significant settlement, the frame assembly 5 is fixedly embedded in the consolidated settlement soil layer on one side of the old roadbed. Therefore, displacement occurs between the main shell 101 and the frame assembly 5. During the process, the transmission component 4 is linked with the frame assembly 5 and prioritizes the movement of the bottom support plate 301, thereby releasing the limit between the bottom support plate 301 and the storage cavity 102. This allows the energy-storing spring between the bottom support plate 301 and the storage cavity 102 to perform work, thus pushing the bottom support plate 301 and the discharge plate 302 as a whole to move towards the top slot 104. This allows the sand and gravel in the storage cavity 102 to pass through the top slot 104 and fill the cavity left by settlement, thereby offsetting the stress difference caused by uneven settlement between the new and old roadbeds and preventing breakage at the joint between the new and old roadbeds. At the same time, this structure can automatically adjust the amount of sand and gravel released according to the settlement difference between the new and old roadbeds, thereby ensuring a stable filling effect.

[0029] In one embodiment, in areas with severe settlement, multiple discharge plates 302 can be installed to discharge sand and gravel. Energy storage springs and interlocking structures are installed between several discharge plates 302. The principle of the interlocking structure is the same as the interlocking structure between the storage cavity 102 and the bottom support plate 301.

[0030] Please see Figure 6 In a preferred embodiment of the present invention, the housing component 1 further includes an inner groove 105 and a sliding piece 106, the top groove 104 is disposed on one side of the side cavity 103, and the sliding piece 106 is slidably fitted in the inner groove 105.

[0031] In practical application, the inner groove 105 is disposed on the wall of the side cavity 103, and the sliding piece 106 is slidably assembled in the groove of the inner groove 105. During the sliding process, the groove of the inner groove 105 can always be kept sealed to prevent sand and gravel and water in the soil from flowing into the cavity of the side cavity 103 and causing structural blockage, so as to achieve a good sealing effect.

[0032] Please see Figure 2 In a preferred embodiment of the present invention, the base plate component 2 further includes support legs 202, and a plurality of the support legs 202 are fixedly disposed at the bottom of the base plate 201 and are disposed facing the side of the new roadbed.

[0033] In practical application, the several support legs 202 provided at the bottom of the base plate 201 can ensure a stable connection between the base plate 201 and the soil layer at the base of the new roadbed. Since the base plate 201 is fixedly connected to the main shell 101, when the soil layer at the base of the new roadbed settles, the base plate 201 can pull the main shell 101 to sink as a whole, so that the settlement cavity between the main shell 101 and the new roadbed can be filled by the discharged sand and gravel.

[0034] Please see Figure 4In a preferred embodiment of this invention, the discharge plate assembly 3 further includes a first bottom groove 303, a first sliding rod 304, a second bottom groove 305, a second sliding rod 306, a first locking piece 307, and a second locking piece 308. The first bottom groove 303 is fixedly disposed at the bottom of the storage cavity 102 and at the bottom of the bottom support plate 301. The first sliding rod 304 is slidably inserted into the first bottom groove 303, and the second bottom groove 305 is fixedly disposed at the top of the bottom support plate 301. The second slide bar 306 is fixedly disposed at the bottom of the discharge plate 302, and the second slide bar 306 is slidably inserted into the second bottom groove 305. The first locking piece 307 is slidably inserted between the first bottom groove 303 and the first slide bar 304 to limit the relative sliding between the first bottom groove 303 and the first slide bar 304. The second locking piece 308 is slidably inserted between the second bottom groove 305 and the second slide bar 306 to limit the relative sliding between the second bottom groove 305 and the second slide bar 306.

[0035] In practical application, the first bottom groove 303 is fixedly mounted on the storage cavity 102, and the first slide rod 304 is fixedly mounted on the bottom of the bottom support plate 301 and slidably inserted into the first bottom groove 303. This allows the bottom support plate 301 and the storage cavity 102 to be slidably connected via the first bottom groove 303 and the first slide rod 304. The first locking piece 307, slidably inserted between the first bottom groove 303 and the first slide rod 304, can lock the first bottom groove 303 and the first slide rod 304, thereby ensuring the storage cavity is properly connected. The spring between the storage cavity 102 and the bottom support plate 301 is always in an energy storage state. When the first locking piece 307 is pulled out from between the first bottom groove 303 and the first sliding rod 304 under the action of external force, the energy-storing spring can do work when it is unfolded, so that the bottom support plate 301 drives the discharge plate 302 on it to move longitudinally under the elastic force, so as to discharge the sand and gravel in the storage cavity 102 toward the top groove opening 104. The same applies to the second bottom groove 305 and the second sliding rod 306 between the bottom support plate 301 and the discharge plate 302.

[0036] Please see Figure 4 In a preferred embodiment of the present invention, the transmission component 4 includes a driven rod 401, a toothed plate 402, a driven gear 403, a transmission gear 404, a winding drum 405, and a rope 406. The driven rod 401 is fixedly mounted on the slide plate 106, and a toothed plate 402 is fixedly provided on one side of it. The driven gear 403 is rotatably mounted in the side cavity 103, and one end is meshed with the toothed plate 402, while the other end is linked to the transmission gear 404. The transmission gear 404 is meshed with the first locking piece 307. One end of the rope 406 is movably connected to the second locking piece 308, and the other end is assembled with the winding drum 405 on one side of the driven gear 403.

[0037] In practical application, when the frame assembly 5 fixed to the old roadbed and the main housing 101 shift, the sliding plate 106 can slide in the inner groove 105 under the traction of the frame assembly 5. When the sliding plate 106 moves, the driven rod 401 fixedly mounted on one side of the sliding plate 106 moves synchronously, and the toothed plate 402 mounted on one end of the driven rod 401 can engage and drive the driven gear 403 to rotate. During the rotation of the driven gear 403, the transmission gear 404 mounted on one end of it can engage and drive the first locking plate 307 to slide, thereby controlling the first locking plate 307 to slide from the first bottom groove 30. When the driven gear 403 rotates on its fixed axis, the rope 406 coaxially mounted on one side of the driven gear 403 can be wound up. The end of the rope 406 is connected to the second locking plate 308. Therefore, when the rope 406 pulls the second locking plate 308 out of the second bottom groove 305 and the second slide bar 306, the limit between the bottom support plate 301 and the discharge plate 302 can be released. Thus, the energy storage spring between the bottom support plate 301 and the discharge plate 302 can perform work to output all the residual sand and gravel in the storage cavity 102 to the outside of the main housing 101.

[0038] In one embodiment, the length of the rope 406 can be adjusted. By adjusting the length of the rope 406, the main housing 101 can trigger the release of the second locking plate 308 at different settlement depths to adapt to different settlement environments and fill varying amounts of sand and gravel.

[0039] Please see Figure 5 In a preferred embodiment of the present invention, the frame assembly 5 includes a support plate 501, a slotted plate 502, slotted teeth 503, and a base frame 504. The support plate 501 is arranged on the outside of the main housing 101 and spaced apart from the main housing 101. Two sets of slotted plates 502 are fixedly arranged on the support plate 501. Several slotted teeth 503 in opposite directions are staggered on the slotted plate 502. The base frame 504 is also fixedly connected to the bottom of the support plate 501. The base frame 504 is fixedly assembled on the sliding plate 106.

[0040] In practical application, the two sets of slotted plates 502 fixedly mounted on one side of the support plate 501 are provided with a number of slotted teeth 503 in a staggered manner. The slotted teeth 503 are buried in the soil layer of the old roadbed base and can increase the friction between the slotted plates and the soil layer after backfilling. When the soil layer on the new roadbed side settles, the consolidated soil layer on the old roadbed side maintains a lower settlement rate. Therefore, a settlement difference is generated between the slotted plates 502 and the main shell 101. The base frame 504 on one side of the support plate 501 can drive the sliding plate 106 to slide in the inner slot 105 to control the movement of the transmission component 4.

[0041] The above embodiments of the present invention provide a widening and splicing structure for new and old roadbeds. By providing a storage cavity 102 and a side cavity 103 in the main shell 101, and a bottom support plate 301 and a discharge plate 302 that can elastically discharge sand and gravel in the storage cavity 102, the soil layer at the bottom of the new roadbed can drive the transmission component 4 in the side cavity 103 to move during the rapid settlement process, thereby driving the discharge plate 302 to discharge the sand and gravel in the storage cavity 102 into the settlement cavity for filling, thus avoiding the breakage caused by uneven settlement between the new and old roadbeds.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A structure for widening and splicing old and new roadbeds, characterized in that, The widening and splicing structure for the old and new roadbeds includes: The shell component includes a main shell, a storage cavity, side retention cavities, and a top slot. The main shell is provided with a storage cavity and a side retention cavity. The two sets of side retention cavities are provided on both sides of the storage cavity. The top of the storage cavity is also provided with several top slots. The main shell is located on one side of the bottom of the new roadbed. A base plate component, the base plate component including a base plate, the base plate being disposed at the bottom of the main housing and fixedly connected to the main housing; A discharge plate assembly, comprising a bottom support plate and a discharge plate, wherein the bottom support plate and the discharge plate are slidably assembled in a storage cavity, and the top of the discharge plate is used to fit the inner cavity of the storage cavity to hold sand and gravel; an energy-storing spring is provided between the bottom support plate and the storage cavity, and an energy-storing spring is also provided between the bottom support plate and the discharge plate. A transmission component, which is movably disposed in the side cavity, is used to control the movement of the bottom support plate and the discharge plate; A frame assembly is installed on one side of the bottom of the old roadbed and is used to detect the settlement difference between the new roadbed and the old roadbed.

2. The new and old roadbed widening and splicing structure according to claim 1, characterized in that, The housing component further includes an inner groove and a sliding plate. The top groove is located on one side of the side cavity, and the sliding plate is slidably fitted into the inner groove.

3. The new and old roadbed widening and splicing structure according to claim 1, characterized in that, The base plate component also includes support legs, and several of the support legs are fixedly installed at the bottom of the base plate and are positioned facing the new roadbed side.

4. The new and old roadbed widening and splicing structure according to claim 1, characterized in that, The discharge plate assembly further includes a first bottom groove, a first sliding rod, a second bottom groove, and a second sliding rod. The first bottom groove is fixedly disposed at the bottom of the storage cavity and at the bottom of the bottom support plate. The first sliding rod is slidably inserted into the first bottom groove. The second bottom groove is fixedly disposed at the top of the bottom support plate. The second sliding rod is fixedly disposed at the bottom of the discharge plate and is slidably inserted into the second bottom groove.

5. The new and old roadbed widening and splicing structure according to claim 4, characterized in that, The discharge plate assembly further includes a first locking piece and a second locking piece. The first locking piece is slidably inserted between the first bottom groove and the first slide rod to limit the relative sliding between the first bottom groove and the first slide rod. The second locking piece is slidably inserted between the second bottom groove and the second slide rod to limit the relative sliding between the second bottom groove and the second slide rod.

6. The new and old roadbed widening and splicing structure according to claim 5, characterized in that, The transmission component includes a driven rod, a toothed plate, a driven gear, a transmission gear, a take-up drum, and a rope. The driven rod is fixedly mounted on a slide plate, and a toothed plate is fixedly provided on one side of the rod. The driven gear is rotatably mounted in a side cavity, with one end meshing with the toothed plate and the other end linked to the transmission gear. The transmission gear meshes with the first locking plate. One end of the rope is movably connected to the second locking plate, and the other end is assembled with the take-up drum on one side of the driven gear.

7. The new and old roadbed widening and splicing structure according to claim 2, characterized in that, The frame assembly includes a support plate, a slotted plate, slotted teeth, and a base frame. The support plate is arranged on the outside of the main housing and spaced apart from the main housing. Two sets of slotted plates are fixedly arranged on the support plate. Several slotted teeth in opposite directions are staggered on the slotted plates. The base frame is also fixedly connected to the bottom of the support plate and is fixedly mounted on the sliding plate.

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