A highway crack maintenance device

Abstract

The present invention discloses a road gap maintenance device, comprising: a nozzle, which sprays high-temperature crushed asphalt material to repair road gaps; at least one protrusion, fixed to the outer wall of the nozzle, having a fan-shaped structure and a convex arc surface that bends outward; and at least one impact block, which is arranged on the periphery of the nozzle. The present invention arranges the impact block and the protrusion on the periphery of the nozzle, and the two conflict with each other, causing the impact block to gradually move away from the nozzle and accumulate elastic potential energy. When the conflict disappears, the elastic potential energy is converted into kinetic potential energy to drive the impact block to impact the nozzle. The nozzle itself, which is impacted by the impact of the impact block, vibrates, and the retained crushed asphalt material enhances its fluidity under the vibration, forcing the remaining crushed asphalt material to leave the nozzle and flow to the outside. This not only ensures the full utilization of the crushed asphalt material, but also prevents the crushed asphalt material from remaining inside the nozzle and adhering, thereby causing the subsequent asphalt material spraying speed to gradually slow down and cause blockage.

Description

Technical Field

[0001] The present invention relates to the technical field of highway maintenance equipment, and in particular to a highway gap maintenance equipment. Background Art

[0002] Generally speaking, most municipal roads are asphalt pavement highways. As the operation time of the highway increases, the asphalt will continuously oxidize and be worn by the driving of vehicles, forming irregular gaps. At this time, these gaps need to be maintained and repaired in time, otherwise the cracks of the gaps will be enlarged.

[0003] The patent document with the publication number CN210916951U discloses a crack filling device for highway maintenance. Through the crack cleaning device, it can initially clean the inside of the crack to prevent excessive debris from affecting the crack filling effect. It also has a movable mixing tank for containing asphalt substances in a high-temperature state, and the asphalt substances are sprayed out through the nozzle and sprayed onto the cracks to be filled, so as to realize the maintenance and repair of the cracks. However, the inventor found the following defects:

[0004] The asphalt substances used to repair highway cracks are in the shape of small fragments, which are the same as the asphalt used for paving when building highways. After the asphalt substances in a high-temperature state are sprayed out from the nozzle, some small fragment asphalt substances will remain on the inner wall of the nozzle. Since the temperature inside the nozzle is lower than the melting point of the molten state of the asphalt substances, when the spraying of the asphalt substances in a high-temperature state stops, the small amount of fragment asphalt substances remaining on the inner wall of the nozzle will gradually reduce their fluidity due to the temperature drop caused by contact with the air, and finally adhere to the inner wall of the nozzle. After a period of accumulation, the aperture for spraying the asphalt substances in a high-temperature state of small fragments at the nozzle will gradually decrease due to the accumulated and adhered asphalt substances, resulting in a certain degree of blockage and a decrease in the spraying speed of the asphalt substances. Currently, the general method is to replace the nozzle to solve this problem. Summary of the Invention

[0005] The purpose of the present invention is to propose a highway gap maintenance equipment, which overcomes the problem of a small amount of fragment asphalt substances adhering to the inner wall of the nozzle and causing blockage, and achieves the effect of keeping the inner wall of the nozzle relatively clean.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A highway gap maintenance equipment, comprising:

[0008] A nozzle for spraying asphalt substances in a high-temperature state of small fragments to repair highway cracks;

[0009] At least one convex block, fixed on the outer wall of the nozzle, having a fan-shaped structure and an outwardly curved convex arc surface;

[0010] At least one impact block is arranged on the periphery of the nozzle and has an arc-shaped impact surface, wherein the bottom of the arc-shaped impact surface and the bottom of the convex arc surface are in the same horizontal plane;

[0011] a spring, located at the periphery of the nozzle, with one end of the spring being rotatably connected to the nozzle and the other end being connected to the impact block;

[0012] The spring is driven to rotate about the virtual central axis of the nozzle. After one circle of movement, the impact block collides with the protrusion at least once. The spring bends and deforms due to the collision to accumulate elastic potential energy. When the collision disappears, the elastic potential energy is converted into kinetic potential energy to drive the impact block to suddenly collide with the outer wall of the nozzle.

[0013] Preferably, there is between the nozzle and the spring:

[0014] Two fixing rings are fixedly sleeved on the outer wall of the nozzle and have a heat-insulating layer inside;

[0015] The outer cylinder is fixedly sleeved on the outer edges of the two fixing rings, and has a heat-insulating layer inside and a ring groove;

[0016] an inner cylinder, the outer diameter of which is the same as the inner diameter of the outer cylinder, and located between the two fixing rings;

[0017] A fixed plate, fixedly connected to the inner wall of the inner cylinder;

[0018] A connecting ring is sleeved on the outer wall of the inner cylinder and is provided with a plurality of equidistantly arranged tooth grooves and is accommodated in the ring groove;

[0019] A rotating motor is installed outside the outer cylinder;

[0020] A first gear is fixedly sleeved with the output shaft of the rotating motor, a portion of which penetrates the annular groove and meshes with the connecting ring;

[0021] Wherein, one end of the spring away from the impact block is connected to the fixing plate.

[0022] Preferably, there is between the fixing plate and the spring:

[0023] The second gear is elastically connected to the fixing plate through a torsion spring

[0024] a round rod, one end of which is rotatably connected to the second gear and the other end of which is fixedly connected to the impact block;

[0025] An expansion ring is fixedly sleeved on the outer wall of the round rod;

[0026] Wherein, two ends of the spring respectively conflict with the expansion ring and the second gear.

[0027] Preferably, an extension block is provided at a position corresponding to the protrusion, the extension block is fixedly connected to the internal gear, the internal gear is an incomplete gear, the internal gear is adapted to the second gear, and when the second gear contacts the internal gear, it meshes with it.

[0028] A method for using a highway gap maintenance device comprises the following steps:

[0029] The impact block is driven to approach the convex arc surface of the bump and collide with the convex arc surface, causing the impact block to gradually move away from the nozzle and accumulate elastic potential energy;

[0030] The moment the impact block breaks away from contact with the convex arc surface, the elastic potential energy is converted into kinetic potential energy to drive the impact block to impact the nozzle.

[0031] Preferably, the arcuate impact surface is away from the nozzle when not impacting the nozzle and the impact block is not in contact with the outer wall of the nozzle. The arcuate impact surface is toward the nozzle when impacting and the impact block is in contact with the outer wall of the nozzle. The arcuate impact surface is converted from away from the nozzle to toward the nozzle through eccentric rotation and elastic reset of the torsion spring.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention arranges an impact block and a protrusion on the periphery of the nozzle. The impact blocks and the protrusions conflict with each other, causing the impact blocks to gradually move away from the nozzle and accumulate elastic potential energy. When the conflict disappears, the elastic potential energy is converted into kinetic potential energy to drive the impact block to impact the nozzle. The nozzle itself, which is impacted by the impact block, vibrates, and the fluidity of the remaining crushed asphalt material is enhanced under the vibration, forcing the remaining small amount of crushed asphalt material to leave the nozzle and flow to the outside. This not only ensures the full utilization of the crushed asphalt material, but also prevents the crushed asphalt material from remaining in the nozzle and adhering to it, thereby causing the subsequent asphalt material spraying speed to gradually slow down and cause blockage.

[0034] 2. In the present invention, the arc-shaped impact surface does not contact the outer wall of the nozzle when it does not hit the nozzle, and only contacts the convex arc surface of the bump before hitting the nozzle, thereby effectively alleviating the wear of the impact block caused by sliding friction. At the same time, the arc-shaped impact surface quickly resets and rotates at the moment the impact is completed, and the arc-shaped impact surface will not contact the vibrating nozzle, thereby preventing the vibrating nozzle from contacting the impact block, causing the spring to reverse and weaken the vibration amplitude of the nozzle and reduce the vibration time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a highway gap maintenance device proposed by the present invention;

[0036] Figure 2 This is a schematic diagram of the structure inside the outer cylinder of a highway gap maintenance device proposed by the present invention;

[0037] Figure 3 Schematic diagram of partial structure decomposition of a highway crack maintenance device proposed by the present invention;

[0038] Figure 4 Schematic diagram of the connection structure between the fixing plate and the impact block in a highway crack maintenance device proposed by the present invention;

[0039] Figure 5 Schematic diagram of the state of the impact block moving inside the outer cylinder in a highway crack maintenance device proposed by the present invention;

[0040] Figure 6 Schematic diagram of the structure of the mounting seat, mating seat and fastening pin in a highway crack maintenance device proposed by the present invention.

[0041] In the figure: 1, spray head; 2, fixing ring; 3, outer cylinder; 4, thermal insulation layer; 5, convex block; 6, convex arc surface; 7, inner cylinder; 8, connecting ring; 9, tooth groove; 10, annular groove; 11, rotating motor; 12, first gear; 13, fixing plate; 14, rotating member; 15, torsion spring; 16, rotating chamber; 17, second gear; 18, round rod; 19, mounting seat; 20, mating seat; 21, fastening pin; 22, expansion ring; 23, spring; 24, impact block; 25, arc impact surface; 26, internal gear; 27, extension block. Specific embodiments

[0042] 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.

[0043] Refer to the attached Figures 1-6, a highway gap maintenance device, including a nozzle 1. The nozzle 1 has a flow channel inside for spraying hot granular asphalt material to fill the gaps that appear on the highway. Two fixing rings 2 are fixedly sleeved on the outer wall of the nozzle 1. The inner diameter of the fixing ring 2 is the same as the outer diameter of the nozzle 1. The outer walls of the two fixing rings 2 are fixedly sleeved with the same outer cylinder 3. The inner diameter of the outer cylinder 3 is the same as the outer diameter of the fixing ring 2. A relatively sealed space is formed between the outer cylinder 3 and the two fixing rings 2. Heat insulation layers 4 are provided in both the fixing ring 2 and the outer cylinder 3. The heat insulation layer 4 is composed of heat insulation materials, such as polyurethane foam materials, rock wool boards, etc., to insulate the port of the nozzle 1 close to the outside air, slow down the heat dissipation speed of the nozzle 1 to a certain extent, and prevent a small amount of granular asphalt material remaining on the inner wall of the nozzle 1 from adhering to the inner wall of the nozzle 1 too quickly. It cooperates with the impact block 24 in the following to impact the outer wall of the nozzle 1, so as to better enhance the fluidity of the remaining granular asphalt material and force the remaining small amount of granular asphalt material to be more easily separated from the nozzle 1 and flow to the outside;

[0044] At least one convex block 5 is fixedly connected to the outer wall of the nozzle 1. The convex block 5 is a fan-shaped structure, which has a convex arc surface 6 that bends outward and a straight surface perpendicular to the virtual tangent of the outer wall of the nozzle 1. An inner cylinder 7 is arranged inside the relatively sealed space. The height of the inner cylinder 7 is the distance between the two fixing rings 2. The outer diameter of the inner cylinder 7 is the same as the inner diameter of the outer cylinder 3. A connecting ring 8 is fixedly sleeved on the outer wall of the inner cylinder 7. Tooth grooves 9 are arranged at equal distances on the outer edge of the connecting ring 8. At the same time, the outer cylinder 3 is provided with an annular groove 10 that allows the connecting ring 8 to pass through. A rotating motor 11 is installed on the outer wall of the outer cylinder 3. The output shaft of the rotating motor 11 is fixedly sleeved with a first gear 12. A part of the first gear 12 penetrates into the annular groove 10 and meshes with the connecting ring 8. The inner cylinder 7 can be rotated inside the relatively sealed space by the power drive of the rotating motor 11;

[0045] At least one fixing plate 13 is fixedly connected to the inner wall of the inner cylinder 7. The side wall of the fixing plate 13 does not contact the outer wall of the nozzle 1. The fixing plate 13 is elastically connected to a second gear 17 through a rotating member 14 and a torsion spring 15. Specifically, a rotating chamber 16 is opened on the fixing plate 13. The rotating member 14 is rotatably connected to the rotating chamber 16. The torsion spring 15 is arranged inside the rotating chamber 16, and its two ends are respectively connected to the rotating member 14 and the rotating chamber 16. The rotating member 14 is fixedly connected to the center of one side of the second gear 17. The second gear 17 is rotatably connected to a round rod 18. The rotation axis of the round rod 18 is perpendicular to the rotation axis of the second gear 17. Specifically, a mounting seat 19 is fixedly installed at the center of the other side of the second gear 17. One end of the round rod 18 is fixedly connected with a mating seat 20. Through the fastening connection of a fastening pin 21, the mounting seat 19 and the mating seat 20 are rotatably connected;

[0046] An extension ring 22 is fixedly sleeved on the outer wall of the round rod 18. A spring 23 is arranged between the extension ring 22 and the second gear 17. The spring 23 is sleeved on the periphery of the round rod 18, and its two ends respectively abut against the second gear 17 and the extension ring 22. The other end of the round rod 18 is fixedly connected with an impact block 24. The impact block 24 has an arc-shaped impact surface 25 for impacting the nozzle 1. When the arc-shaped impact surface 25 faces the nozzle 1, it just contacts the outer wall of the nozzle 1. When the arc-shaped impact surface 25 is away from the nozzle 1, it does not contact the outer wall of the nozzle 1;

[0047] At the same time, an incomplete internal gear 26 is fixedly connected to one of the fixing rings 2 through an extension block 27. The internal gear 26 is located in the relatively sealed space and corresponds to the convex block 5. The fixing plate 13 rotates with the inner cylinder 7, so that the second gear 17 gradually approaches the internal gear 26 until it contacts and meshes with the internal gear 26. As a result, the second gear 17 rotates against the elasticity of the torsion spring 15, so that the original arc-shaped impact surface 25 away from the nozzle 1 gradually rotates and faces the nozzle 1. At the same time, the arc-shaped impact surface 25 gradually facing the nozzle 1 abuts against the convex arc surface 6 of the convex block 5, so that the impact block 24 gradually moves away from the nozzle 1 and the spring 23 bends, accumulating elastic potential energy. At the moment when the impact block 24 disengages from the convex arc surface 6 of the convex block 5, the elastic potential energy is immediately converted into kinetic potential energy, and the arc-shaped impact surface 25 suddenly impacts the outer wall of the nozzle 1. At the moment when the impact is completed, the second gear 17 disengages from the internal gear 26 and resets under the elasticity of the torsion spring 15, that is, the arc-shaped impact surface 25 quickly rotates back and does not contact the nozzle 1 after the impact;

[0048] The nozzle 1 subjected to the impact of the impact block 24 vibrates itself, and the remaining crushed particle asphalt material is vibrated to enhance its fluidity, forcing the remaining small amount of crushed particle asphalt material to flow out of the nozzle 1 to the outside. This not only ensures the full utilization of the crushed particle asphalt material, but also prevents the crushed particle asphalt material from remaining and adhering inside the nozzle 1, resulting in a gradual slowdown in the ejection speed of the subsequent asphalt material and then replacing the new nozzle 1.

[0049] Working principle:

[0050] After the high-temperature asphalt material in the shape of crushed particles stops spraying from the nozzle 1, the rotation motor 11 is started. Through the force conduction of the first gear 12 and the connecting ring 8, the inner cylinder 7 rotates, driving the impact block 24 to approach the convex arc surface 6 of the convex block 5;

[0051] Reference appendix Figure 5The direction indicated by the arrow is the revolution direction of the impact block 24. As the impact block 24 rotates, the second gear 17 first contacts and meshes with the incomplete internal gear 26, so that the second gear 17 not only revolves around the virtual central axis of the nozzle 1, but also rotates on its own, thereby overcoming the elastic force of the torsion spring 15 and causing the arc-shaped impact surface 25 of the impact block 24 to deflect due to its rotation, so that the arc-shaped impact surface 25 originally away from the nozzle 1 begins to gradually deflect toward the nozzle 1, and then begins to gradually deflect toward the nozzle. 1 will further collide with the convex arc surface 6 of the bump 5, causing the round rod 18 to deviate and rotate, causing the spring 23 to bend and deform, gathering elastic potential energy. The moment the impact block 24 separates from the convex arc surface 6 of the bump 5, the elastic potential energy is immediately converted into dynamic potential energy, causing the arc-shaped impact surface 25 to suddenly impact the outer wall of the nozzle 1. At the moment the impact is completed, the second gear 17 disengages from the internal gear 26 and quickly resets under the elasticity of the torsion spring 15. That is, the arc-shaped impact surface 25 quickly rotates back after completing the impact and no longer contacts the nozzle 1.

[0052] The nozzle 1, which is impacted by the arc-shaped impact surface 25 of the impact block 24, vibrates itself, and the retained crushed asphalt material enhances its fluidity under the vibration, forcing the remaining small amount of crushed asphalt material to separate from the nozzle 1 and flow to the outside, which not only ensures the full utilization of the crushed asphalt material, but also prevents the crushed asphalt material from remaining and adhering inside the nozzle 1, thereby causing the subsequent asphalt material spraying speed to gradually slow down and then replace a new nozzle 1.

[0053] It should be noted that, since the arc-shaped impact surface 25 does not contact the outer wall of the nozzle 1 when it does not hit the nozzle 1, it only contacts the raised arc surface 6 of the bump 5 before hitting the nozzle 1, thereby effectively alleviating the wear of the impact block 24 caused by sliding friction. At the same time, the arc-shaped impact surface 25 quickly resets and rotates at the moment the impact is completed, and the arc-shaped impact surface 25 will not contact the vibrating nozzle 1, thereby avoiding the vibrating nozzle 1 contacting the impact block 24, causing the spring 23 to reversely weaken the vibration amplitude of the nozzle 1 and reduce the vibration time.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A highway crack maintenance device, characterized in that Including: A nozzle (1) that sprays hot granular asphalt material to repair road cracks; At least one bump (5) fixed to the outer wall of the nozzle (1), which is a fan-shaped structure and has a convex arc surface (6) that bends outward; At least one impact block (24) arranged around the nozzle (1), which has an arc-shaped impact surface (25), and the bottom of the arc-shaped impact surface (25) is at the same horizontal level as the bottom of the convex arc surface (6); A spring (23) located around the nozzle (1), one end of which is rotatably connected to the nozzle (1) and the other end is connected to the impact block (24); Two fixing rings (2) are both fixedly sleeved on the outer wall of the nozzle (1), and a heat-insulating layer (4) is provided therein; An outer cylinder (3) is fixedly sleeved on the outer edges of the two fixing rings (2), a heat-insulating layer (4) is provided therein, and a ring groove (10) is also provided; An inner cylinder (7) has the same outer diameter as the inner diameter of the outer cylinder (3) and is located between the two fixing rings (2); A fixing plate (13) is fixedly connected to the inner wall of the inner cylinder (7); A second gear (17) is elastically connected to the fixing plate (13) through a torsion spring (15); Among them, the spring (23) is driven to make a rotational movement around the virtual central axis of the nozzle (1). When it moves one week, the impact block (24) contacts the bump (5) at least once. Then, the spring (23) undergoes a bending deformation due to the contact and accumulates elastic potential energy. When the contact disappears, the elastic potential energy is converted into kinetic potential energy to drive the impact block (24) to suddenly impact the outer wall of the nozzle (1); An extension block (27) is provided at the corresponding position of the bump (5), and the extension block (27) is fixedly connected to an internal gear (26). The internal gear (26) is an incomplete gear and is adapted to the second gear (17). When the second gear (17) contacts the internal gear (26), it meshes with it.

2. The highway gap maintenance device according to claim 1, characterized in that, Between the nozzle (1) and the spring (23), there is: A connecting ring (8) sleeved on the outer wall of the inner cylinder (7), with a plurality of equally spaced tooth grooves (9) provided, and is accommodated inside the ring groove (10); A rotating motor (11) is installed outside the outer cylinder (3); A first gear (12) is fixedly sleeved on the output shaft of the rotating motor (11), and a part of it penetrates into the ring groove (10) and is meshed and connected to the connecting ring (8); Among them, one end of the spring (23) away from the impact block (24) is connected to the fixing plate (13).

3. The road gap maintenance device according to claim 2, characterized in that Between the fixing plate (13) and the spring (23), there is: A round rod (18), one end of which is rotatably connected to the second gear (17) and the other end is fixedly connected to the impact block (24); An expansion ring is fixedly sleeved on the outer wall of the round rod (18); Among them, the two ends of the spring (23) are respectively in contact with the expansion ring and the second gear (17).

4. A method for using a highway crack maintenance device, characterized in that, Adopting the road crack maintenance device according to any one of claims 1-3, including the following steps: Drive the impact block (24) to approach the convex arc surface (6) of the convex block (5) and make it contact with the convex arc surface (6), causing the impact block (24) to gradually move away from the nozzle (1) and accumulate elastic potential energy; At the moment when the impact block (24) disengages from the contact with the convex arc surface (6), the elastic potential energy is converted into dynamic potential energy to drive the impact block (24) to impact the nozzle (1).

5. The usage method according to claim 4, characterized in that, When not impacting the nozzle (1), the arc-shaped impact surface (25) moves away from the nozzle (1) and the impact block (24) does not contact the outer wall of the nozzle (1). When impacting, the arc-shaped impact surface (25) faces the nozzle (1) and the impact block (24) contacts the outer wall of the nozzle (1). The mutual conversion between moving away from the nozzle (1) and facing the nozzle (1) of the arc-shaped impact surface (25) is completed by the eccentric self-rotation in cooperation with the elastic reset of the torsion spring (15).

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