Water-stable layer cement paste spraying device

Abstract

The invention provides a water-stable layer cement paste spraying device. The water-stable layer cement paste spraying device comprises a mounting frame; the two mounting bases are arranged at the two ends of the mounting frame correspondingly and located on the different sides of the mounting frame, and mounting rods are fixedly arranged on the two mounting bases correspondingly; the two spraying pipes are located on the two sides of the mounting frame respectively and provided with a plurality of spraying heads used for spraying cement paste and a connecting pipe used for being connected with a pipeline, the end of the mounting rod penetrates into the spraying pipes, and a plug is arranged in the spraying pipe in a sliding mode and connected with the end of the mounting rod. For a wide road surface, a larger area can be covered at a time by expanding the spraying ranges of the two spraying pipes, the back-and-forth moving times of the construction vehicle are reduced, the construction efficiency is improved, for a narrow road surface, adaptation can be conducted by shrinking the spraying ranges of the spraying pipes, the construction quality is ensured, and meanwhile under the cooperation of the adjusting piece, the construction efficiency is improved. And the two spraying pipes can be synchronously adjusted, so that the operation steps are simplified.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, in particular to a water-stabilizing layer cement slurry spraying device. Background Art

[0002] The water-stabilizing layer is the abbreviation of cement-stabilized gravel layer, which has high strength, rigidity and stability. For asphalt pavement, the water-stabilizing layer is the main load-bearing layer of the entire road structure, which can effectively transfer the vertical load of the road to the roadbed and is an important structure to ensure the stability of the entire road structure. Whether it is a highway, urban expressway or municipal road, cement-stabilized aggregate is generally used for paving the water-stabilizing layer, and the construction is carried out by mechanical paving, according to the construction process and process of layered paving, rolling, maintenance, and re-layered paving, layer by layer, until the thickness required by the design is reached.

[0003] In the process of layer-by-layer construction, cement slurry is usually used to reinforce the connection between the gravel layer and the water-stabilizing layer of the road base, and is sprayed through a cement slurry spraying device to form a connecting surface. For example, the Chinese patent "CN111119010B" discloses "a vertical cement slurry spraying device and a paver with the device and its application". The spraying device can be installed on the paver to spray cement slurry on the roadbed, and the cement box is provided with a self-circulating pipe, on which are installed several nozzles in different directions. The cement slurry is ejected from the nozzle to form a vortex, which continuously stirs the cement slurry to keep the cement slurry evenly mixed and not sticky and solidified.

[0004] However, since the length of the pipe for spraying cement slurry is fixed, the range of cement slurry spraying is limited, and construction can only be carried out on roads of specified width. When the road width is smaller than the length of the spraying pipe, it is necessary to customize the pipe to match its size, which indirectly increases the construction cost. When the road width is larger than the length of the spraying pipe, construction vehicles are required to spray back and forth multiple times, which reduces the construction efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a water-stabilizing layer cement slurry spraying device, which solves the problem that the cement slurry spraying device in the prior art cannot be adapted to road surfaces of different widths.

[0006] According to an embodiment of the present invention, a water-stabilizing layer cement slurry spraying device comprises:

[0007] Mounting frame;

[0008] Mounting seats, the two mounting seats are respectively arranged at two ends of the mounting frame and located on different sides of the mounting frame, and both mounting seats are fixed with mounting rods;

[0009] Spray pipes, two spray pipes are respectively located on both sides of the mounting frame and are provided with a plurality of spray heads for spraying cement slurry and connecting pipes for connecting pipelines, the end of the mounting rod penetrates into the interior of the spray pipe, a plug is slidably provided in the spray pipe, and the plug is connected to the end of the mounting rod; and

[0010] The adjusting member is arranged on the mounting frame and connected between the two spraying pipes, and is used for adjusting the relative positions of the two spraying pipes so as to adjust the spraying surface of the spraying head.

[0011] Preferably, the adjusting member comprises an adjusting gear, the mounting frame is provided with a mounting slot, the adjusting gear is rotatably arranged in the mounting slot, the two spray pipes are provided with racks, and the adjusting gear is meshed between the two racks.

[0012] Preferably, a fixing seat is fixedly provided at the end of one of the racks, an adjusting screw is rotatably provided on the fixing seat, the adjusting screw is passed through a mounting frame, the mounting frame is provided with a threaded sleeve corresponding to the adjusting screw, and the threaded sleeve is threadedly connected to the adjusting screw.

[0013] Preferably, a hand wheel is provided at the end of the adjusting screw rod.

[0014] Preferably, the mounting frame is provided with a connecting plate along its height direction, and the side surface of the connecting plate is bent outward to form a mounting edge.

[0015] Preferably, the mounting edge is provided with a plurality of mounting holes for the bolts to pass through.

[0016] Preferably, a plurality of reinforcing ribs are provided on both sides of the connecting plate, and the plurality of reinforcing ribs are connected to the mounting edges.

[0017] Preferably, the spray pipe is provided with a limit seat, the mounting frame is provided with a limit frame, and the limit seat is slidably sleeved on the limit frame.

[0018] Preferably, the plug sleeve is provided with a sealing layer, and the sealing layer abuts against the inner side of the spray pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this solution, two mounting rods on different sides are provided at both ends of the mounting frame, and the two spray pipes are respectively mounted in the two mounting rods, and the plugs in the spray pipes are controlled by the mounting rods, and the connecting pipes of the two spray pipes are connected to the external cement slurry pipe, and the cement slurry in the tank is pumped into the spray pipes, and finally sprayed onto the road surface through a plurality of nozzles. According to the construction conditions of different road surfaces, the two spray pipes can be pushed separately to move the spray pipes on the mounting rods, and the size of the internal space of the spray pipes can be changed by the plugs, thereby changing the spraying surface based on the center line of the spray pipes, thereby realizing the adjustment of the cement slurry spraying surface, so that this solution It can adapt to the construction needs of roads of different widths. No matter the road surface is smaller or larger than the original spray pipe length, the spraying surface of the spray pipe can be adjusted to meet the construction requirements. There is no need to customize pipes of specific sizes for each road width. For wider roads, the spraying range of the two spray pipes can be expanded to cover a larger area at one time, reducing the number of times the construction vehicles move back and forth and improving construction efficiency. For narrower roads, the spraying range of the spray pipe can be contracted to adapt and ensure the construction quality. At the same time, with the cooperation of the adjustment parts, the two spray pipes can be adjusted synchronously, simplifying the operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the spraying device in an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the working state of the spraying device in the embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the connection structure between the adjusting screw rod and the mounting bracket in an embodiment of the present invention.

[0024] Figure 4 for Figure 2 Schematic diagram of the structure viewed from above.

[0025] Figure 5 Schematic diagram of the structure of the mounting frame in the embodiment of the present invention.

[0026] In the above drawings: 1. mounting frame; 101. mounting groove; 2. connecting plate; 201. mounting edge; 202. mounting hole; 203. reinforcing rib; 3. spray pipe; 301. spray head; 302. connecting pipe; 4. mounting seat; 401. mounting rod; 402. plug; 403. sealing layer; 5. limiting seat; 501. limiting frame; 6. adjusting gear; 601. rack; 7. adjusting screw; 701. hand wheel; 702. threaded sleeve; 703. fixing seat. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] like Figures 1 to 5 As shown, the embodiment of the present invention provides a water-stabilizing layer cement slurry spraying device, comprising:

[0029] Mounting frame 1;

[0030] Mounting seats 4, two mounting seats 4 are respectively arranged at two ends of the mounting frame 1 and located on different sides of the mounting frame 1, and both mounting seats 4 are fixed with mounting rods 401;

[0031] Spraying pipes 3, two spraying pipes 3 are respectively located on both sides of the mounting frame 1, and are provided with a plurality of spraying heads 301 for spraying cement slurry and connecting pipes 302 for connecting pipes, the end of the mounting rod 401 penetrates into the inside of the spraying pipe 3, a plug 402 is slidably provided in the spraying pipe 3, and the plug 402 is connected to the end of the mounting rod 401; and

[0032] The adjusting member is disposed on the mounting frame 1 and connected between the two spraying pipes 3 , and is used to adjust the relative positions of the two spraying pipes 3 so as to adjust the spraying surface of the spraying head 301 .

[0033] In an embodiment of the present invention, the mounting frame 1 is assembled to the bottom or tail of the mobile facility, and a storage tank for storing cement slurry and a pumping device for conveying cement slurry are installed on the mobile facility. The mobile facility horizontally frames the entire road surface, so that the mounting frame 1 installed on the mobile facility is located in the center of the road surface, and is connected to the connecting pipe 302 between the pumping device and the spraying pipe 3 by a pipeline. When the pumping device is turned on, the pumping device conveys the cement slurry in the storage tank to the spraying pipe 3 through the pipeline, and finally sprays it onto the road surface through the various spray heads 301 of the spraying pipe 3, so as to complete the large-area cement slurry spraying during the continuous movement of the mobile facility.

[0034] When adapting to the road width, the position of the spray pipe 3 on the mounting rod 401 can be directly adjusted. The two spray pipes 3 are pushed separately to move the spray pipes 3 on the mounting rod 401. The size of the internal space of the spray pipe 3 is changed through the plug 402, thereby changing the spraying surface based on the center line of the spray pipe 3, thereby adjusting the cement slurry spraying surface. Since the mounting frame 1 is fixedly installed on the mobile facility, the position of the mounting frame 1 will not change, so that the positions of the mounting seat 4, the mounting rod 401 and the plug 402 connected to the mounting rod 401 will not change, and the plugs 402 at the ends of the two mounting rods 401 are located in the middle of the mounting frame 1, so that the cement slurry spraying surface can be adjusted. Figure 2 , Figure 4For example, the space of the spraying pipe 3 between the plug 402 and the connecting pipe 302 is section A1 and section B1, and the space of the spraying pipe 3 on the other side of the plug 402 is section A2 and section B2. Sections A1 and B1 are connected to the corresponding connecting pipe 302. After the cement slurry enters through the connecting pipe 302, it will only be sprayed out from the spraying heads 301 of sections A1 and B1, and sections A2 and B2 will not perform spraying operations. The spraying surface corresponding to section A2 is completed by section B1, and the spraying surface corresponding to section B2 is completed by section A1. With the cooperation of the plug 402, repeated spraying of cement slurry will not occur, which not only ensures the spraying quality of cement slurry at various points on the road surface, but also avoids the waste of cement slurry.

[0035] When the two spray pipes 3 are moving on the corresponding mounting rods 401, the lengths corresponding to sections A1, B1, A2 and B2 will change. At the same time, with the cooperation of the adjusting parts, the positions of the two spray pipes 3 can be adjusted at the same time. Taking the direction of the spray pipe 3 toward the mounting seat 4 as an example, under the premise that the plug 402 is limited and cannot move, the channels of sections A1 and B1 become shorter, while the channels of sections A2 and B2 become longer, and the distance between the ends of the two spray pipes 3 becomes shorter. Sections A1 and B1 are regarded as spraying surfaces, that is, the spraying surface becomes smaller. At the same time, the cement slurry will not be discharged through sections A2 and B2. Taking the direction of the spray pipe 3 away from the mounting seat 4 as an example, the channels of sections A1 and B1 become longer, while the channels of sections A2 and B2 become shorter, and the distance between the ends of the two spray pipes 3 becomes shorter. The length of the spraying pipe 3 is longer, that is, the spraying surface becomes larger, and the sum between the A1 section and the A2 section, and between the B1 section and the B2 section remains unchanged. The spraying surface can be changed by changing the length of each of the A1 section, the A2 section, the B1 section, and the B2 section. There is no need to customize a specific size of pipe for each road width. For a wider road surface, a larger area can be covered at one time by expanding the spraying range of the two spraying pipes 3, which reduces the number of times the construction vehicles move back and forth and improves the construction efficiency. For a narrower road surface, the spraying range of the spraying pipe 3 can be contracted to adapt to it and ensure the construction quality. At the same time, with the cooperation of the adjusting member, the two spraying pipes 3 can also be adjusted synchronously, which simplifies the operating steps. The adjusting member can be a two-way driving member, such as a two-way electric rod, and the two spraying pipes 3 are respectively connected to the two telescopic ends of the two-way electric rod to achieve two-way drive.

[0036] Based on the above scheme, if Figure 4 As shown, the adjusting member includes an adjusting gear 6 , the mounting frame 1 is provided with a mounting slot 101 , the adjusting gear 6 is rotatably arranged in the mounting slot 101 , the two spray pipes 3 are both provided with racks 601 , and the adjusting gear 6 is meshed between the two racks 601 .

[0037] With the cooperation of the adjusting gear 6 and the two racks 601, the two spray pipes 3 can be adjusted in two ways. First, the adjusting gear 6 is adjusted. The adjusting gear 6 is rotatably installed in the mounting groove 101 of the mounting frame 1 through a pin shaft. When the pin shaft is rotated, the pin shaft drives the adjusting gear 6 to rotate in the mounting groove 101. Since the two racks 601 are respectively engaged with the two sides of the adjusting gear 6, when the adjusting gear 6 rotates, the two racks 601 will move to the left and right respectively, so that the two spray pipes 3 are driven to approach or move away from each other through the two racks 601, thereby achieving the adjustment of the two spray pipes 3; second, one of the spray pipes 3 is adjusted, and one of the spray pipes 3 is directly pushed, so that the rack 601 on the spray pipe 3 drives the adjusting gear 6 to rotate, thereby driving the other rack 601 to move through the rotation of the adjusting gear 6, that is, when the position of one of the spray pipes 3 is adjusted, the other spray pipe 3 will move synchronously, thereby achieving the adjustment of the two spray pipes 3. Compared with hydraulic or electric drive systems, the adjustment gear 6 and rack 601 mechanism is relatively simple and easy to maintain, thus reducing the maintenance cost for long-term use.

[0038] Specifically, Figure 4 and Figure 5 As shown, a fixing seat 703 is fixedly provided at the end of one of the racks 601, and an adjusting screw 7 is rotatably provided on the fixing seat 703. The adjusting screw 7 is passed through the mounting frame 1, and the mounting frame 1 is provided with a threaded sleeve 702 corresponding to the adjusting screw 7, and the threaded sleeve 702 is threadedly connected with the adjusting screw 7. In order to improve the stability of the two spray pipes 3 after adjustment, the adjustment method of the spray pipe 3 is changed, by fixing a fixing seat 703 at the end of one of the racks 601, and rotatably setting the adjusting screw 7 on the fixing seat 703, so that the adjusting screw 7 can rotate on the fixing seat 703. When the adjusting screw 7 is rotated, the adjusting screw 7 is rotated. When the adjusting screw rod 7 is adjusted, due to the threaded connection between it and the threaded sleeve 702, the adjusting screw rod 7 will produce a linear motion, so that it moves along the axis of the threaded sleeve 702, thereby driving the rack 601 and the spray pipe 3 connected thereto to move synchronously. Therefore, as the adjusting screw rod 7 moves, it will drive the corresponding rack 601 and the spray pipe 3 meshing therewith to move together, and with the cooperation of the adjusting gear 6 and the other rack 601, the adjustment of the two spray pipes 3 is completed. At the same time, when the adjusting screw rod 7 stops rotating, it can complete self-locking with the cooperation of the adjusting screw rod 7 and the threaded sleeve 702, effectively preventing the adjusted spray pipe 3 from moving.

[0039] At the same time, a hand wheel 701 is provided at the end of the adjusting screw rod 7; when the operator rotates the hand wheel 701, the adjusting screw rod 7 can be directly driven to rotate, which reduces the force required to rotate the adjusting screw rod 7 and reduces the physical exertion of the construction personnel.

[0040] Specifically, Figure 1As shown, the mounting frame 1 is provided with a connecting plate 2 along its height direction, and the side surface of the connecting plate 2 is bent outward to form a mounting edge 201; the connecting plate 2 is arranged along the height direction of the mounting frame 1 to provide vertical support and connection functions, and the side surface of the connecting plate 2 is bent outward to form a mounting surface for fixing or connecting other components, and it can be assembled to the mobile facility by welding or other fixing methods to ensure stability in use.

[0041] Secondly, the mounting edge 201 is provided with a plurality of mounting holes 202 for bolts to pass through; in order to facilitate the installation of the mounting frame 1, the mounting frame 1 can be fixedly assembled to the mobile facility by passing bolts through each mounting hole 202, and when the entire device needs to be maintained or inspected, the bolts can be easily removed to dismantle the entire device, which is convenient for maintenance. At the same time, the mounting holes 202 are in the shape of long strips, allowing the entire device to be used in combination with various auxiliary equipment (such as sensors, brackets).

[0042] Specifically, Figure 2 As shown, a plurality of reinforcing ribs 203 are provided on both sides of the connecting plate 2, and the plurality of reinforcing ribs 203 are connected to the mounting edge 201; the reinforcing ribs 203 effectively disperse the stress acting on the connecting plate 2 by adding additional supporting surfaces and points of action for distributed forces, and the reinforcing ribs 203 are connected to the mounting edge 201, which not only improves the overall rigidity of the connecting plate 2, but also enhances the bending and torsion resistance of the entire structure.

[0043] Specifically, Figure 4 As shown, the spray pipe 3 is provided with a limit seat 5, the mounting frame 1 is provided with a limit frame 501, and the limit seat 5 is slidably sleeved on the limit frame 501; under the action of the limit seat 5 and the limit frame 501, the limit seat 5 is fixedly installed on the spray pipe 3, and the limit seat 5 can slide along the length direction of the limit frame 501, so as to bear the weight of the spray pipe 3, thereby reducing the pressure of the mounting rod 401 and the plug 402.

[0044] Specifically, Figure 3 As shown, the plug 402 is provided with a sealing layer 403, and the sealing layer 403 abuts against the inner side of the spray pipe 3; under the action of the sealing layer 403, the sealing layer 403 adopts a traditional rubber ring structure, and through its flexibility and elasticity, it can fit tightly against the inner wall of the spray pipe 3. When the spray pipe 3 moves, the sealing layer 403 always maintains contact with the inner wall of the spray pipe 3, effectively preventing cement slurry from leaking from the gap between the spray pipe 3 and the plug 402, ensuring the construction quality and avoiding material waste.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A water-stabilizing layer cement slurry spraying device, characterized in that: include: Mounting frame (1); A mounting seat (4), wherein the two mounting seats (4) are respectively arranged at two ends of the mounting frame (1) and are located on different sides of the mounting frame (1), and the two mounting seats (4) are both fixed with a mounting rod (401); Spraying pipes (3), two of the spraying pipes (3) are respectively located on both sides of the mounting frame (1), and are provided with a plurality of spraying heads (301) for spraying cement slurry and connecting pipes (302) for connecting pipelines, the end of the mounting rod (401) penetrates into the interior of the spraying pipe (3), a plug (402) is slidably provided in the spraying pipe (3), and the plug (402) is connected to the end of the mounting rod (401); and An adjusting member is arranged on the mounting frame (1) and connected between the two spraying pipes (3), and is used for adjusting the relative positions of the two spraying pipes (3) so as to adjust the spraying surface of the spraying head (301).

2. A water-stabilizing layer cement slurry spraying device according to claim 1, characterized in that: The adjusting member comprises an adjusting gear (6), the mounting frame (1) is provided with a mounting groove (101), the adjusting gear (6) is rotatably arranged in the mounting groove (101), the two spray pipes (3) are both provided with racks (601), and the adjusting gear (6) is meshed between the two racks (601).

3. A water-stabilizing layer cement slurry spraying device according to claim 2, characterized in that: A fixed seat (703) is fixedly provided at the end of one of the racks (601), and an adjusting screw (7) is rotatably provided on the fixed seat (703). The adjusting screw (7) is passed through the mounting frame (1), and the mounting frame (1) is provided with a threaded sleeve (702) corresponding to the adjusting screw (7), and the threaded sleeve (702) is threadedly connected to the adjusting screw (7).

4. A water-stabilizing layer cement slurry spraying device according to claim 3, characterized in that: A hand wheel (701) is provided at the end of the adjusting screw rod (7).

5. A water-stabilizing layer cement slurry spraying device according to claim 1, characterized in that: The mounting frame (1) is provided with a connecting plate (2) along its height direction, and the side surface of the connecting plate (2) is bent outward to form a mounting edge (201).

6. A water-stabilizing layer cement slurry spraying device according to claim 5, characterized in that: The installation edge (201) is provided with a plurality of installation holes (202) for bolts to pass through.

7. A water-stabilizing layer cement slurry spraying device according to claim 5, characterized in that: A plurality of reinforcing ribs (203) are provided on both sides of the connecting plate (2), and the plurality of reinforcing ribs (203) are connected to the mounting edge (201).

8. The water-stabilizing layer cement slurry spraying device according to claim 1 is characterized in that: The spray pipe (3) is provided with a limit seat (5), the mounting frame (1) is provided with a limit frame (501), and the limit seat (5) is slidably sleeved on the limit frame (501).

9. A water-stabilizing layer cement slurry spraying device according to claim 1, characterized in that: The plug (402) is sleeved with a sealing layer (403), and the sealing layer (403) abuts against the inner side of the spray pipe (3).

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