Expressway roadbed and pavement maintenance construction equipment

Abstract

The invention relates to the technical field of highway maintenance equipment, and discloses highway subgrade and pavement maintenance construction equipment which comprises a vehicle body, the top of the vehicle body is fixedly provided with a box body, and the top of the box body is fixedly connected with the end of an outer sleeve; and an inner charging barrel is fixedly mounted on the inner wall of the upper end opening of the box body. According to the highway roadbed and pavement maintenance construction equipment, the three-way pushing and pressing mechanism is arranged in the joint filling raw material conveying pipe, in the construction process, the pushing and pressing mechanism in the device can assist in pushing joint filling raw materials in the conveying pipe to be discharged, and after construction is completed, the pushing and pressing mechanism can continue to operate so as to reduce the residual joint filling raw materials in the conveying pipe; and when the device is preheated, the pushing and pressing mechanism can apply peristaltic pressure to the conveying pipe, so that the raw materials solidified on the inner wall of the conveying pipe can be more sufficiently in contact with the heating wire to be melted, possible local blockage is broken through, and the conveying pipe can quickly enter a working state.

Description

Technical Field

[0001] The present invention relates to the technical field of highway maintenance equipment, and particularly to a highway subgrade and pavement maintenance construction equipment. Background Technique

[0002] During the use of highways, passing vehicles will continuously roll over the road surface. The long-term pressure will cause the production structure of the road surface materials to fatigue, resulting in cracks on the road surface. To ensure driving safety, it is necessary to use road surface maintenance equipment to fill the cracks. The heating component in the maintenance equipment will melt the crack filling material, and then the melted crack filling material will be discharged through conveying components such as a pump and a pipeline. The flowing crack filling material is used to fill the cracks. When the temperature of the crack filling material decreases, it will solidify by itself to complete the crack filling. However, there are still some problems with existing highway maintenance construction equipment: For the highway maintenance construction equipment on the market, it is difficult to discharge the crack filling material in the conveying pipeline after use. After the equipment construction is completed, the crack filling material in the pipeline will cool and solidify, resulting in a certain blockage effect. When the device is started again, it is difficult to quickly melt the crack filling material in the pipeline, resulting in too long start-up preparation time for the device.

[0003] In view of the above problems, it is urgent to innovate and design on the basis of the original highway maintenance construction equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a highway subgrade and pavement maintenance construction equipment to solve the following problems existing in the existing highway maintenance construction equipment in the above background technique: For the highway maintenance construction equipment on the market, it is difficult to discharge the crack filling material in the conveying pipeline after use. After the equipment construction is completed, the crack filling material in the pipeline will cool and solidify, resulting in a certain blockage effect. When the device is started again, it is difficult to quickly melt the crack filling material in the pipeline, resulting in too long start-up preparation time for the device.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A highway subgrade and pavement maintenance construction equipment, including: A vehicle body, on the top of which a box body is fixedly installed, and the end of an outer sleeve pipe is fixedly connected to the top of the box body; further including: An inner material cylinder is fixedly installed on the inner wall of the upper port of the box body, and a horizontal loading rack is fixedly connected to the top inner wall of the inner material cylinder. A traction tension module is movably installed on the loading rack; An inner conveying pipe is arranged at the center inside the outer sleeve pipe. A three-way pushing mechanism with equally spaced distribution is arranged between the outer wall of the inner conveying pipe and the inner wall of the outer sleeve pipe. The three-way pushing mechanism includes a moving ring. An extrusion block is slidably embedded on the inner wall of the moving ring, and a force-bearing convex block is rotatably connected to the top of the extrusion block. The force-bearing convex block is fitted and embedded in a receiving groove opened on the outer wall of the moving ring.

[0006] Preferably, a partition board is horizontally and fixedly installed on the inner wall at the top of the inner barrel. The feeding pipe at the top of the box body fixedly penetrates through the partition board. A heater is fixedly connected between the bottom inner wall of the box body and the outer wall of the inner barrel. A filtering suction pipe is arranged at the axis inside the inner barrel. The filter cover at the bottom end of the filtering suction pipe is located at the bottom inner wall of the inner barrel. The upper port of the filtering suction pipe is fixedly communicated with a pump. The pump is fixedly installed through the top of the box body and is located above the partition board, so that the pump can extract the caulking raw material in the inner barrel by using the filtering suction pipe.

[0007] Preferably, a motor is fixedly installed through the top of the box body. A driving rack is meshed on the side of the output gear of the motor. One end of the driving rack close to the motor is horizontally slidably installed on the top of the partition board. A first gear is meshed on the middle side of the driving rack. A rotating sleeve is coaxially fixedly connected to the bottom of the first gear. The middle of the rotating sleeve is rotatably embedded between the outer wall of the filtering suction pipe and the inner wall of the partition board. A pushing frame is coaxially fixedly connected to the bottom end of the rotating sleeve. The bottom of the pushing frame is attached to the filter cover of the filtering suction pipe. The convex ring at the top of the pushing frame is rotatably embedded on the inner wall of the inner barrel, so that the driving rack can drive the first gear to rotate.

[0008] Preferably, the traction tension module includes a thrust frame horizontally embedded on the loading rack. The convex block in the middle of the thrust frame is embedded on the inner wall of the loading rack to form a sliding limit structure. The bottom of the thrust frame is fixedly connected to one end of the driving rack away from the motor. Symmetrically distributed limiting rods are slidably installed through the top of the thrust frame. The two ends of the limiting rods are fixedly connected to the corresponding transmission racks. The two ends of the limiting rods slide inside the loading rack. Pressure springs are sleeved on both sides of the rod body of the limiting rods. Pressure springs are fixedly connected between the ends of the limiting rods and the side wall of the thrust frame, so that the limiting rods can drive the transmission racks to move.

[0009] Preferably, the traction tension module further includes a second gear meshed on the transmission rack. A winding wheel rotating shaft is fixedly penetrated through the axis of the second gear. The end of the rotating shaft of the winding wheel is rotatably embedded on the side wall of the loading rack. The winding wheels are symmetrically distributed on the outside of the loading rack. The corresponding ends of a traction rope are wound and installed on the two winding wheels. The traction rope slidably penetrates through the top of the box body. The traction rope is movably installed through an outer sleeve. A guide wheel frame is fixedly connected to the inner wall at the top of the box body. The traction rope passes through the rollers of the guide wheel frame. The guide wheel frame is located on the side of the transmission rack away from the limiting rod, so that the winding wheel can drive the traction rope to move.

[0010] Preferably, the upper end of the inner conveying pipe is fixedly and penetratingly installed at the top of the box body, and the lower port of the inner conveying pipe is fixedly communicated with the end of the gun head. One end of the outer sleeve pipe away from the box body is fixedly connected to the end face of the gun head. The upper port of the inner conveying pipe is fixedly communicated with the pump. A heating wire for maintaining the temperature of the raw material is arranged at the center of the inner part of the inner conveying pipe. The lower end of the heating wire is fixedly connected to the inner wall of the gun head, and the upper end of the heating wire is fixedly installed at the top of the inner wall of the box body. The upper end of the heating wire fixedly penetrates through the side wall of the upper end of the inner conveying pipe, so that the heating wire can heat the raw material in the inner conveying pipe.

[0011] Preferably, extrusion blocks are slidably penetrated through the inner wall of the moving ring at equal angular intervals, and the arc surface at the bottom of the extrusion block is flush with the inner wall of the moving ring. The moving ring is fitted and sleeved between the inner wall of the outer sleeve pipe and the outer wall of the inner conveying pipe. Corresponding limiting strips are fitted in three through openings formed at the outer edge of the moving ring, and the limiting strips are fixedly connected to the inner wall of the outer sleeve pipe. Fixing rings are arranged on both sides of the limiting strip. Both ends of a limiting rope are fixedly connected between the fixing rings, and the limiting rope slidably penetrates through the moving ring. A traction rope passes through the notch at the bottom of the moving ring, and the traction rope fixedly penetrates through the moving ring, so that the traction rope can drive the moving ring to move.

[0012] Preferably, the axis of the force-receiving convex block intersects perpendicularly with the axis of the moving ring. The inclined surface at the top of the force-receiving convex block faces the inclined surface at the end of the limiting strip. A receiving opening is formed on the side of the limiting strip away from the force-receiving convex block. Symmetrically distributed guiding members are fixedly installed at both ends of the extrusion block, and the guiding members are slidably embedded in the inner wall of the moving ring, so that the extrusion block can drive the guiding members to move.

[0013] Preferably, a reset ring is slidably sleeved on the inner wall of the moving ring. A horizontal abutting member is fitted on the outer wall of the lower part of the force-receiving convex block, and the abutting member is above the rotation axis at the bottom of the force-receiving convex block. One end of the abutting member away from the force-receiving convex block is fixedly installed on the outer wall of the reset ring. Both sides of the abutting member are fitted on the inner wall of the receiving groove. The side of the force-receiving convex block away from the reset ring is fitted on the inner wall of the moving ring to form a limiting structure. Reset springs are sleeved on the ring surface studs of the reset ring, and the reset springs are fixedly connected between the inner wall of the moving ring and the ring surface of the reset ring. The three reset springs are distributed at equal angular intervals around the axis of the reset ring, so that the reset springs can push the reset ring to move.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In this highway subgrade and pavement maintenance construction equipment, a three-way pushing mechanism is provided inside the crack filling raw material conveying pipe. During the construction process, the pushing mechanism inside the device can assist in pushing the crack filling raw materials in the conveying pipe out. After the construction is completed, the pushing mechanism can continue to operate to reduce the residual crack filling raw materials in the conveying pipe, thereby reducing the risk of pipeline blockage after the raw materials solidify. When the device is preheated, the pushing mechanism can apply a peristaltic pressure to the conveying pipe, so that the raw materials solidified on the inner wall of the conveying pipe can come into contact with the heating wire more fully and melt, and flush out possible local blockages, enabling the conveying pipe to quickly enter the working state. The specific content is as follows: 1. The traction module includes a thrust frame horizontally embedded in the loading frame. The bottom of the thrust frame is fixedly connected to the end of the driving toothed plate. Symmetrically distributed limiting rods are slidably and penetratingly installed at the top of the thrust frame. The two ends of the limiting rods are fixedly connected to the corresponding driving toothed plates. A pressure spring is fixedly connected between the end of the limiting rod and the side wall of the thrust frame. A second gear is meshed on the driving toothed plate. A winding wheel rotating shaft is fixedly penetrated at the axis of the second gear. The corresponding ends of the traction ropes are wound and installed on the two winding wheels. The traction ropes are fixedly penetrated through the moving ring, so that the driving toothed plate can drive the driving toothed plate to move through the thrust frame and the pressure spring, and the driving toothed plate will drive the winding wheel to rotate through the second gear. At this time, the two gears will drive the traction ropes to move reciprocally, and use the traction ropes to drive the moving ring in the three-way pushing mechanism to move; 2. The inclined surface at the top of the force-bearing convex block faces the inclined surface at the end of the limiting strip. A receiving opening is formed on the side of the limiting strip away from the force-bearing convex block. Symmetrically distributed guiding members are fixedly installed at both ends of the extrusion block. The guiding members are slidably embedded in the inner wall of the moving ring. A reset ring is slidably sleeved on the inner wall of the moving ring. A horizontal contact member is attached to the lower outer wall of the force-bearing convex block. The end of the contact member away from the force-bearing convex block is fixedly installed on the outer wall of the reset ring. A limiting structure is formed by the side of the force-bearing convex block away from the reset ring being attached to the inner wall of the moving ring. A reset spring is fixedly connected between the inner wall of the moving ring and the ring surface of the reset ring. When the moving ring moves along the limiting strip, the inclined surface at the top of the force-bearing convex block will be subjected to the reverse pressure of the limiting strip. At this time, the force-bearing convex block will push the extrusion block and the guiding members to move downward synchronously, so that the three extrusion members can press the inner conveying pipe from different directions, and then the moving extrusion members can drive the raw materials in the inner conveying pipe to move auxiliarily. Description of the Drawings

[0015] Figure 1 Schematic diagram of the overall external structure of the present invention; Figure 2 Schematic diagram of the installation structure of the inner barrel of the present invention; Figure 3 Schematic diagram of the installation structure of the heater of the present invention; Figure 4 Schematic diagram of the installation structure of the material pushing frame of the present invention; Figure 5 Schematic diagram of the installation structure of the first gear of the present invention; Figure 6 Schematic diagram of the installation structure of the winding wheel of the present invention; Figure 7 Schematic diagram of the installation structure of the traction rope of the present invention; Figure 8 Schematic diagram of the installation structure of the thrust frame of the present invention; Figure 9 Schematic diagram of the installation structure of the limit rod of the present invention; Figure 10 Schematic diagram of the installation structure of the inner conveying pipe of the present invention; Figure 11 Schematic diagram of the installation structure of the fixing ring of the present invention; Figure 12 Schematic diagram of the installation structure of the limit strip of the present invention; Figure 13 Schematic diagram of the installation structure of the reset ring of the present invention; Figure 14 Schematic diagram of the installation structure of the extrusion block of the present invention; Figure 15 Schematic diagram of the installation structure of the guiding member of the present invention; Figure 16 Schematic diagram of the installation structure of the force-receiving convex block of the present invention.

[0016] In the figure: 1, vehicle body; 2, box body; 3, inner material cylinder; 4, partition board; 5, filtering suction pipe; 6, rotating sleeve; 7, pump; 8, first gear; 9, material pushing frame; 10, driving toothed plate; 11, motor; 12, heater; 13, loading rack; 14, thrust frame; 15, limit rod; 16, driving toothed plate; 17, pressure spring; 18, second gear; 19, winding wheel; 20, traction rope; 21, guide wheel frame; 22, outer sleeve pipe; 23, inner conveying pipe; 24, heating wire; 25, gun head; 26, three-way pushing mechanism; 2601, moving ring; 2602, extrusion block; 2603, guiding member; 2604, force-receiving convex block; 2605, abutting member; 2606, reset ring; 2607, reset spring; 2608, storage groove; 27, limit strip; 28, storage port; 29, limit rope; 30, fixing ring. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1 - 16 , the present invention provides a technical solution: a highway subgrade and pavement maintenance construction device, comprising: A vehicle body 1, on the top of which a box body 2 is fixedly installed, and the end of an outer sleeve pipe 22 is fixedly connected to the top of the box body 2; It further comprises: an inner material cylinder 3 is fixedly installed on the inner wall of the upper port of the box body 2, and a horizontal loading rack 13 is fixedly connected to the top inner wall of the inner material cylinder 3, and a traction tension module is movably installed on the loading rack 13; An inner conveying pipe 23 is arranged at the center inside the outer sleeve pipe 22, and a three-way pressing mechanism 26 is arranged at equal intervals between the outer wall of the inner conveying pipe 23 and the inner wall of the outer sleeve pipe 22. The three-way pressing mechanism 26 includes a moving ring 2601, an extrusion block 2602 is slidably embedded on the inner wall of the moving ring 2601, and a force-receiving convex block 2604 is rotatably connected to the top of the extrusion block 2602, and the force-receiving convex block 2604 is fittingly embedded in a storage groove 2608 opened on the outer wall of the moving ring 2601.

[0019] A motor 11 is fixedly installed through the top of the box body 2. A driving toothed plate 10 is meshed on the side of the output gear of the motor 11. One end of the driving toothed plate 10 close to the motor 11 is horizontally and slidably installed on the top of the partition plate 4. A first gear 8 is meshed on the side of the middle part of the driving toothed plate 10. A rotating sleeve 6 is coaxially fixedly connected to the bottom of the first gear 8. The middle part of the rotating sleeve 6 is rotationally embedded between the outer wall of the filtering suction pipe 5 and the inner wall of the partition plate 4. A pushing frame 9 is coaxially fixedly connected to the bottom end of the rotating sleeve 6. The bottom of the pushing frame 9 is attached to the filter cover of the filtering suction pipe 5. The convex ring on the top of the pushing frame 9 is rotationally embedded on the inner wall of the inner material cylinder 3, so that the output gear of the motor 11 can drive the first gear 8 and the rotating sleeve 6 to rotate through the driving toothed plate 10. The pushing frame 9 at the bottom of the rotating sleeve 6 can push the caulking raw material, and the bottom of the pushing frame 9 can clean the filter cover on the filtering suction pipe 5. A partition plate 4 is horizontally and fixedly installed on the inner wall of the top of the inner material cylinder 3. The feeding pipe on the top of the box body 2 is fixedly installed through the partition plate 4. A heater 12 is fixedly connected between the inner wall of the bottom of the box body 2 and the outer wall of the inner material cylinder 3. A filtering suction pipe 5 is arranged at the inner axis of the inner material cylinder 3. The filter cover at the bottom end of the filtering suction pipe 5 is at the inner wall bottom of the inner material cylinder 3. The upper port of the filtering suction pipe 5 is fixedly communicated with a pump 7. The pump 7 is fixedly installed through the top of the box body 2. The pump 7 is above the partition plate 4. The pump 7 can send the melted caulking raw material into the inner conveying pipe 23 through the filtering suction pipe 5. The upper end of the inner conveying pipe 23 is fixedly installed through the top of the box body 2. The lower port of the inner conveying pipe 23 is fixedly communicated with the end of the gun head 25. One end of the outer sleeve pipe 22 away from the box body 2 is fixedly connected to the end face of the gun head 25. The upper port of the inner conveying pipe 23 is fixedly communicated with the pump 7. A heating wire 24 for maintaining the temperature of the raw material is arranged at the inner center of the inner conveying pipe 23. The lower end of the heating wire 24 is fixedly connected to the inner wall of the gun head 25. The upper end of the heating wire 24 is fixedly installed on the inner wall top of the box body 2. The upper end of the heating wire 24 is fixedly installed through the side wall of the upper end of the inner conveying pipe 23. The heating wire 24 is used to heat the caulking raw material in the inner conveying pipe 23 to reduce the risk of raw material solidification and blockage.

[0020] The traction tension module includes a thrust frame 14 horizontally embedded in the loading rack 13. The bump in the middle of the thrust frame 14 is embedded in the inner wall of the loading rack 13 to form a sliding limit structure. The bottom of the thrust frame 14 is fixedly connected to the end of the driving tooth plate 10 away from the motor 11. Symmetrically distributed limiting rods 15 are slidably penetrated through the top of the thrust frame 14, and both ends of the limiting rods 15 are fixedly connected to the corresponding transmission tooth plates 16. Both ends of the limiting rods 15 are slidably arranged inside the loading rack 13. Pressure springs 17 are sleeved on both sides of the rod body of the limiting rods 15, and pressure springs 17 are fixedly connected between the ends of the limiting rods 15 and the side walls of the thrust frame 14, so that the driving tooth plate 10 can drive the thrust frame 14 to reciprocate, and the thrust frame 14 will drive the corresponding limiting rods 15 and transmission tooth plates 16 to move synchronously through the pressure springs 17. Since the traction tension module further includes a second gear 18 meshed with the transmission tooth plate 16, a winding wheel 19 rotating shaft is fixedly penetrated through the axis of the second gear 18, and the end of the rotating shaft of the winding wheel 19 is rotatably embedded in the side wall of the loading rack 13. The winding wheels 19 are symmetrically distributed outside the loading rack 13, and the corresponding ends of a traction rope 20 are wound and installed on the two winding wheels 19. And the traction rope 20 slidably penetrates through the top of the box body 2. The traction rope 20 is movably penetrated and installed on the outer sleeve 22. A guide wheel frame 21 is fixedly connected to the top inner wall of the box body 2, and the traction rope 20 passes through the rollers of the guide wheel frame 21. The guide wheel frame 21 is on the side of the transmission tooth plate 16 away from the limiting rod 15. At this time, the transmission tooth plate 16 will drive the winding wheel 19 to rotate through the second gear 18, and the winding wheel 19 will drive the traction rope 20 to move.

[0021] On the inner wall of the moving ring 2601, extrusion blocks 2602 are slidably arranged in an equiangular distribution, and the arc surface at the bottom of the extrusion block 2602 is flush with the inner wall of the moving ring 2601. The moving ring 2601 is fittingly sleeved between the inner wall of the outer sleeve 22 and the outer wall of the inner conveying pipe 23. Corresponding limiting strips 27 are fittingly arranged in three through openings opened at the outer edge of the moving ring 2601, and the limiting strips 27 are fixedly connected to the inner wall of the outer sleeve 22. Corresponding fixing rings 30 are arranged on both sides of the limiting strip 27, and both ends of a limiting rope 29 are fixedly connected between the fixing rings 30. The limiting rope 29 slidably penetrates through the moving ring 2601, and a traction rope 20 passes through the notch at the bottom of the moving ring 2601, and the traction rope 20 is fixedly penetrated through the moving ring 2601, so that the traction rope 20 can drive the moving ring 2601 to move along the limiting strip 27. The axis of the force-bearing convex block 2604 and the axis of the moving ring 2601 are vertically intersected, and the inclined surface at the top of the force-bearing convex block 2604 faces the inclined surface at the end of the limiting strip 27. A receiving opening 28 is opened on one side of the limiting strip 27 away from the force-bearing convex block 2604. Symmetrically distributed guiding members 2603 are fixedly installed at both ends of the extrusion block 2602, and the guiding members 2603 are slidably embedded in the inner wall of the moving ring 2601. At this time, the moving ring 2601 will drive the force-bearing convex block 2604 to move towards the inclined surface of the limiting strip 27, and the force-bearing convex block 2604 will drive the extrusion block 2602 to move downward under the action of the reverse pressure, so that the extrusion block 2602 can extrude the inner conveying pipe 23.

[0022] A return ring 2606 is slidably sleeved on the inner wall of the moving ring 2601. A horizontal contact member 2605 is fittingly arranged on the lower outer wall of the force-bearing convex block 2604, and the contact member 2605 is above the rotation axis at the bottom of the force-bearing convex block 2604. And one end of the contact member 2605 away from the force-bearing convex block 2604 is fixedly installed on the outer wall of the return ring 2606. Both sides of the contact member 2605 are fittingly arranged on the inner wall of the receiving groove 2608. One side of the force-bearing convex block 2604 away from the return ring 2606 is fittingly arranged on the inner wall of the moving ring 2601 to form a limiting structure. Return springs 2607 are sleeved on the ring surface studs of the return ring 2606, and the return springs 2607 are fixedly connected between the inner wall of the moving ring 2601 and the ring surface of the return ring 2606. There are three return springs 2607 distributed equiangularly around the axis of the return ring 2606. When the force-bearing convex block 2604 is stressed and rotates, the force-bearing convex block 2604 can apply a pressure to the contact member 2605, so that the contact member 2605 drives the return ring 2606 to move, and the return ring 2606 will further stretch the return spring 2607.

[0023] Working principle: When using this highway subgrade and pavement maintenance construction equipment, first refer to Figures 1 - 16, during use, the raw materials for patching road cracks can be put into the inner barrel 3 through the feeding pipe on the box body 2. The device controls the motor 11 and the heater 12 to start. At this time, the heater 12 will start to melt the patching raw materials in the inner barrel 3. The motor 11 rotates forward or backward periodically. The output gear of the motor 11 will drive the driving tooth plate 10 to move reciprocally, and the driving tooth plate 10 will drive the first gear 8 to drive the pushing frame 9 to rotate through the rotating sleeve 6. The pushing frame 9 will push the patching raw materials in the inner barrel 3 to accelerate melting. At the same time, the bottom of the pushing frame 9 can clean the filter cover at the bottom of the filtering and suction pipe 5. The melted patching raw materials in the inner barrel 3 will pass through the filtering and suction pipe 5 and the pump 7 in sequence, and then enter the inner conveying pipe 23. The raw materials in the inner conveying pipe 23 will flow out through the gun head 25. The user can aim the port of the gun head 25 at the road crack. During this process, the heating wire 24 can maintain the temperature of the patching raw materials in the inner conveying pipe 23 to prevent solidification; At the same time, the reciprocating driving toothed plate 10 will drive the thrust frame 14 to move synchronously, and the thrust frame 14 will drive the transmission toothed plate 16 to do horizontal reciprocating movement through the pressure spring 17 and the limit rod 15. At this time, the transmission toothed plate 16 will drive the second gear 18 to rotate synchronously, and the two second gears 18 will drive the corresponding winding wheel 19 to rotate forward or reverse. At this time, the winding wheel 19 will pull the traction rope 20 to move back and forth, and the traction rope 20 will pull the moving ring 2601 to move synchronously. At this time, the moving ring 2601 will move along the three limit strips 27, and the limit rope 29 is used to limit the moving ring 2601. The moving ring 2601 will drive the force-bearing protrusion 2604 to press against the inclined surface at the end of the limit strip 27. Since the top of the force-bearing protrusion 2604 is provided with a side with an inclined surface toward the limit The force-bearing protrusion 2604 is arranged on the inner wall of the moving ring 2601. At this time, the force-bearing protrusion 2604 will move downward, and the force-bearing protrusion 2604 will push the extrusion block 2602 to move downward synchronously. The extrusion block 2602 will drive the guide member 2603 to move synchronously. The three extrusion blocks 2602 will first squeeze the inner conveying tube 23, and then the extrusion block 2602 will move horizontally, so that the extrusion block 2602 can further push the raw materials in the inner conveying tube 23 to be discharged. When the moving ring 2601 drives the force-bearing protrusion 2604 to move below the receiving opening 28 of the limiting strip 27, the limiting strip 27 will no longer resist the top of the force-bearing protrusion 2604. Since the conveying seam-filling raw materials in the inner conveying tube 23 have a certain pressure, the inner conveying tube 23 is 3 will expand and recover by itself. At this time, the inner conveying tube 23 will push the extrusion block 2602 and the force-bearing protrusion 2604 to reset and move. At this time, the force-bearing protrusion 2604 will enter the receiving port 28. When the traction rope 20 drives the moving ring 2601 to reset, the side wall of the force-bearing protrusion 2604 will be subjected to the resistance pressure of the limit bar 27. At this time, the force-bearing protrusion 2604 can rotate unidirectionally on the top of the extrusion block 2602. At this time, the force-bearing protrusion 2604 will enter the receiving groove 2608. At the same time, the rotating force-bearing protrusion 2604 will push the resistance member 2605, and the resistance member 2605 will drive the reset ring 2606 to move. At this time, the reset ring 2606 will stretch the reset spring 2607. When the force-bearing protrusion 2604 is away from the limit bar 27, the reset spring 2607 will be pulled back. 07 will drive the reset ring 2606 and the resistance piece 2605 to move through the reset action. At this time, the resistance piece 2605 will push the force-bearing protrusion 2604 to move out of the storage groove 2608 and enter. Through the unidirectional extrusion movement of the extrusion block 2602 during the above steps, the extrusion block 2602 can assist in pushing the filling material in the inner conveying pipe 23 to be discharged. After the highway pavement filling construction is completed, the pump 7 is turned off and the motor 11 is kept started. At this time, the above steps can reduce the material in the inner conveying pipe 23, thereby reducing the risk of complete blockage caused by the solidification of the material in the inner conveying pipe 23. At the same time, during the startup preheating process of the device, the three-way pushing mechanism 26 can also press the solidified filling material inside the inner conveying pipe 23 to the heating wire 24 to improve the heating and melting efficiency.If there is a partial blockage in the inner delivery pipe 23, this extrusion structure can also push the melted caulking material to open the blocked point, thereby reducing the preheating start-up time of the device.

[0024] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highway subgrade and pavement maintenance construction equipment, comprising: The vehicle body (1) has a box body (2) fixedly installed on its top, and the end of an outer sleeve tube (22) is fixedly connected to the top of the box body (2); it is characterized in that it further includes: an inner material cylinder (3) is fixedly installed on the inner wall of the upper port of the box body (2), and a horizontal loading rack (13) is fixedly connected to the top inner wall of the inner material cylinder (3), and a traction tension module is movably installed on the loading rack (13); an inner conveying pipe (23) is arranged at the center inside the outer sleeve tube (22), and a three-way pushing mechanism (26) is arranged at equal intervals between the outer wall of the inner conveying pipe (23) and the inner wall of the outer sleeve tube (22). The three-way pushing mechanism (26) includes a moving ring (2601), an extrusion block (2602) is slidably embedded on the inner wall of the moving ring (2601), and a force-receiving convex block (2604) is rotatably connected to the top of the extrusion block (2602), and the force-receiving convex block (2604) is fitted and embedded in a storage groove (2608) opened on the outer wall of the moving ring (2601).

2. The highway subgrade and pavement maintenance construction equipment according to claim 1, characterized in that: A partition plate (4) is horizontally and fixedly installed on the top inner wall of the inner material cylinder (3). The feeding pipe on the top of the box body (2) fixedly penetrates through the partition plate (4). A heater (12) is fixedly connected between the bottom of the inner wall of the box body (2) and the outer wall of the inner material cylinder (3). A filtering suction pipe (5) is arranged on the inner axis of the inner material cylinder (3), and the filter cover at the bottom end of the filtering suction pipe (5) is at the bottom of the inner wall of the inner material cylinder (3). And the upper port of the filtering suction pipe (5) is fixedly communicated with a pump (7). The pump (7) is fixedly installed through the top of the box body (2), and the pump (7) is above the partition plate (4).

3. The maintenance construction equipment for highway subgrade and pavement according to claim 1, characterized in that: A motor (11) is fixedly installed through the top of the box body (2). A driving toothed plate (10) is engaged on the side of the output gear of the motor (11). One end of the driving toothed plate (10) close to the motor (11) is horizontally slidably installed on the top of the partition plate (4). A first gear (8) is engaged on the middle side of the driving toothed plate (10). A rotating sleeve (6) is coaxially fixedly connected to the bottom of the first gear (8). The middle of the rotating sleeve (6) is rotatably embedded between the outer wall of the filtering suction pipe (5) and the inner wall of the partition plate (4). A pushing rack (9) is coaxially fixedly connected to the bottom end of the rotating sleeve (6), and the bottom of the pushing rack (9) is in contact with the filter cover of the filtering suction pipe (5). A convex ring on the top of the pushing rack (9) is rotatably embedded on the inner wall of the inner material cylinder (3).

4. The highway subgrade and pavement maintenance construction equipment according to claim 1, characterized in that: The traction tension module includes a thrust frame (14) horizontally embedded in the loading rack (13). A bump in the middle of the thrust frame (14) is embedded in the inner wall of the loading rack (13) to form a sliding limit structure. The bottom of the thrust frame (14) is fixedly connected to one end of the drive tooth plate (10) away from the motor (11). Symmetrically distributed limit rods (15) are slidably penetrated and installed at the top of the thrust frame (14), and both ends of the limit rods (15) are fixedly connected to the corresponding transmission tooth plates (16). Both ends of the limit rods (15) are slidably arranged inside the loading rack (13). Pressure springs (17) are sleeved on both sides of the rod body of the limit rods (15), and pressure springs (17) are fixedly connected between the ends of the limit rods (15) and the side wall of the thrust frame (14).

5. The highway subgrade and pavement maintenance construction equipment according to claim 4, characterized in that: The traction tension module further includes a second gear (18) meshed with the transmission tooth plate (16). A winding wheel (19) rotating shaft is fixedly penetrated at the axis of the second gear (18), and the end of the rotating shaft of the winding wheel (19) is rotatably embedded in the side wall of the loading rack (13). The winding wheels (19) are symmetrically distributed outside the loading rack (13), and corresponding ends of a traction rope (20) are wound and installed on the two winding wheels (19). And the traction rope (20) slidably penetrates through the top of the box body (2). The traction rope (20) is movably penetrated and installed on the outer sleeve (22). A guide wheel frame (21) is fixedly connected to the top inner wall of the box body (2), and the traction rope (20) passes through the rollers of the guide wheel frame (21). The guide wheel frame (21) is located on the side of the transmission tooth plate (16) away from the limit rod (15).

6. The maintenance construction equipment for highway subgrade and pavement according to claim 1, characterized in that: The upper end of the inner delivery pipe (23) is fixedly penetrated and installed on the top of the box body (2), and the lower port of the inner delivery pipe (23) is fixedly communicated with the end of the gun head (25). One end of the outer sleeve (22) away from the box body (2) is fixedly connected to the end face of the gun head (25). The upper port of the inner delivery pipe (23) is fixedly communicated with the pump (7). A heating wire (24) for maintaining the temperature of the raw material is arranged at the center inside the inner delivery pipe (23). The lower end of the heating wire (24) is fixedly connected to the inner wall of the gun head (25), and the upper end of the heating wire (24) is fixedly installed on the top inner wall of the box body (2). The upper end of the heating wire (24) is fixedly penetrated through the side wall of the upper end of the inner delivery pipe (23).

7. The highway subgrade and pavement maintenance construction equipment according to claim 1, characterized in that: On the inner wall of the moving ring (2601), extrusion blocks (2602) are arranged at equal angles and penetrate through the inner wall of the moving ring (2601) in a sliding manner. The arc surface at the bottom of the extrusion block (2602) is flush with the inner wall of the moving ring (2601). The moving ring (2601) is fitted and sleeved between the inner wall of the outer sleeve (22) and the outer wall of the inner conveying pipe (23). Corresponding limiting strips (27) are fitted in three through openings opened at the outer edge of the moving ring (2601), and the limiting strips (27) are fixedly connected to the inner wall of the outer sleeve (22). Fixed rings (30) are arranged on both sides of the limiting strip (27). The two ends of a limiting rope (29) are fixedly connected between the fixed rings (30), and the limiting rope (29) slides through the moving ring (2601). A traction rope (20) passes through the notch at the bottom of the moving ring (2601), and the traction rope (20) is fixedly penetrated through the moving ring (2601).

8. A highway subgrade and pavement maintenance construction device according to claim 1, characterized in that: The axis of the force-bearing convex block (2604) is perpendicular to and intersects with the axis of the moving ring (2601). The inclined surface at the top of the force-bearing convex block (2604) faces the inclined surface at the end of the limiting strip (27). A receiving opening (28) is opened on the side of the limiting strip (27) away from the force-bearing convex block (2604). Symmetrically distributed guiding members (2603) are fixedly installed at both ends of the extrusion block (2602), and the guiding members (2603) are slidably embedded in the inner wall of the moving ring (2601).

9. The maintenance construction equipment for the roadbed and pavement of an expressway according to claim 8, characterized in that: A reset ring (2606) is slidably sleeved on the inner wall of the moving ring (2601). A horizontal contact member (2605) is fitted on the lower outer wall of the force-bearing convex block (2604), and the contact member (2605) is above the rotation axis at the bottom of the force-bearing convex block (2604). One end of the contact member (2605) away from the force-bearing convex block (2604) is fixedly installed on the outer wall of the reset ring (2606). Both sides of the contact member (2605) are fitted on the inner wall of the receiving groove (2608). The side of the force-bearing convex block (2604) away from the reset ring (2606) is fitted on the inner wall of the moving ring (2601) to form a limiting structure. Reset springs (2607) are sleeved on the ring surface studs of the reset ring (2606), and the reset springs (2607) are fixedly connected between the inner wall of the moving ring (2601) and the ring surface of the reset ring (2606). Three reset springs (2607) are distributed at equal angles around the axis of the reset ring (2606).

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