A symmetrical discharge combined paver

Abstract

This invention relates to the field of paver technology, specifically to a symmetrical discharge combined paver. It includes a base aggregate bin and at least one extended aggregate bin. The base aggregate bin is used for paving drainage material. The base aggregate bin and the extended aggregate bin are arranged sequentially along the paver's travel direction; the paver's travel direction is defined as the front side, and the base aggregate bin is located at the rear side of the paver. The extended aggregate bin is used for paving thick filter material to both sides of the drainage material paving path. During the paver's forward movement, the extended aggregate bin at the front discharges material to both sides. This improves paving efficiency and provides lateral support for the material exiting laterally. The material in the base aggregate bin receives the greatest lateral support after exiting. The material in the base aggregate bin is typically the drainage material with the largest particle size, and this lateral support effectively prevents the drainage material from sliding to both sides.

Description

Technical Field

[0001] This invention relates to the field of paver technology, and more specifically, to a symmetrical discharge combined paver. Background Technology

[0002] According to specifications, conventional homogeneous earth dams should preferably use vertical drainage systems, with horizontal drainage at the bottom to divert seepage water outside the dam. The project constructed by the applicant is a homogeneous earth dam with an axis length of 16.5 km. Longitudinal drainage systems are installed along the dam axis, and comb-shaped drainage systems are installed perpendicular to the dam axis at 120 m intervals.

[0003] During the actual construction process, it was found that due to the long dam line and the fact that the drainage body consisted of three types of materials (or even more), the construction efficiency was low. Therefore, a combined paver was used for construction on site. Summary of the Invention

[0004] The purpose of this invention is to provide a symmetrical discharge combined paver to solve the problem of how to achieve symmetrical discharge of aggregate bins arranged sequentially in the travel direction.

[0005] To achieve the above objectives, a symmetrical discharge combined paver is provided. Firstly, the paver includes a base aggregate bin and at least one extended aggregate bin. The base aggregate bin is used for paving drainage material. The base aggregate bin and the extended aggregate bin are sequentially arranged along the paver's travel direction. The paver's travel direction is defined as the front side, and the base aggregate bin is located on the rear side of the paver. The extended aggregate bin is used for paving thick filter material on both sides of the drainage material paving path. During the paver's travel, the thick filter material is pre-paved on both sides, forming a barrier to provide lateral support to the drainage material paved subsequently.

[0006] Specifically, the base aggregate bin is set at the rear of the paver, and then an extension aggregate bin is set in front of the base aggregate bin. In this way, the maximum width of the feeding port at the top of both the base aggregate bin and the extension aggregate bin can reach the width of the drainage body, which allows for a larger feeding volume and greater convenience.

[0007] Secondly, the bottom of the basic aggregate box is provided with a basic aggregate box paving opening, and the bottom of the extended aggregate box is symmetrically provided with extended aggregate box paving openings along the drainage material paving path. The extended aggregate box is provided with a guide plate connected in a "V" shape. The two ends of the guide plate are respectively connected to the extended aggregate box paving openings on both sides of the bottom of the extended aggregate box. Therefore, as the paver moves forward, the extended aggregate box in front will discharge material to both sides (i.e., symmetrical discharge). This can improve paving efficiency and provide lateral support for the material that comes out later. When the material in the basic aggregate box comes out, it will receive the maximum lateral support force. The material in the basic aggregate box is usually the drainage material with the largest particle size. Under the action of the lateral support force, it can effectively prevent the drainage material from sliding to both sides.

[0008] Furthermore, the extended aggregate bins at the front discharge material to both sides, creating a continuous material layer in front of the paver. This provides support in front of the paver when material is released from the base aggregate bins, better bearing the weight of subsequent material. Compared to discharging a row of material simultaneously, releasing all material at the same time can lead to uneven lateral pressure, affecting material stability.

[0009] Preferably, when there are two or more extended aggregate boxes, the distance between the two extended aggregate box openings on the front side should be greater than the distance between the two extended aggregate box openings on the rear side, and ensure that the inner side of the two extended aggregate box openings on the front side of the base aggregate box opening is collinear with the outer side of the base aggregate box opening, and the inner side of the two extended aggregate box openings on the front side is collinear with the outer side of the two extended aggregate box openings on the rear side.

[0010] The height of the apex of the guide plate is lower than the height of the upper edge of the extended collection box. Therefore, the guide plate has two functions:

[0011] The thick filter material in the extended collection box is guided to the material outlets of the extended collection boxes on both sides to achieve symmetrical discharge and avoid the accumulation of thick filter material in the extended collection box.

[0012] The guide plate only diverts the thick filter media within the extended collection box, without dividing the extended collection box into two chambers. Therefore, it is not necessary to feed the media separately during filling, ensuring that the maximum width of the feeding port can reach the width level of the drainage body. Moreover, the thick filter media in the space above the guide plate is guided by it and can be evenly discharged through the material spreading ports of the extended collection boxes on both sides, ensuring the consistency of the discharge from both sides.

[0013] On the other hand, side plates are provided on both sides of the bottom of the basic aggregate box laying port and the extended aggregate box laying port. With the support of the side plates, the bottom of the basic aggregate box laying port and the extended aggregate box laying port respectively form the basic aggregate box dropping space and the extended aggregate box dropping space.

[0014] The base material box and the extended material box are both equipped with a fixed plate at the upper rear side. The fixed plate is connected to an adjusting screw through a vertical thread. The bottom end of the adjusting screw is rotatably connected to a scraper. By rotating the adjusting screw forward or backward, the scraper can be raised or lowered to control the material spreading thickness between 10-50mm.

[0015] On the other hand, both the basic aggregate bin and the extended aggregate bin have two inner plates arranged symmetrically inside;

[0016] The guide plate inside the extended collection box consists of two straight plates, with their top ends rotatably connected.

[0017] The width of the material spreading opening of the basic aggregate box can be adjusted by moving the bottom ends of the two inner plates away from each other or moving them closer together;

[0018] The width of the material spreading opening of the extended aggregate box can be adjusted by moving the inner plate and the bottom of the straight plate on the same side away from each other or moving closer to each other.

[0019] Specifically, the power source for the basic aggregate box, which involves the bottom ends of the two inner plates moving away from or close to each other, and the power source for the bottom ends of the inner plates and straight plates on the same side of the extended aggregate box, which move away from or close to each other, are all telescopic rods, wherein:

[0020] The bottom of the inner plate of both the basic aggregate box and the extended aggregate box is rotatably connected to a side plate, and a telescopic rod is provided between the basic aggregate box and the extended aggregate box and the inner plate;

[0021] The bottom end of the straight plate is rotatably connected to a side plate, and the bottom of the extended collection box is provided with a vertical plate between the side plates at the bottom ends of the two straight plates, and a telescopic rod is provided between the two.

[0022] Furthermore, all the aforementioned side plates are vertical, the purpose of which is to ensure that the materials on the same cross-section can be distributed according to the preset dimensions.

[0023] In addition, the basic aggregate bin and the extended aggregate bin, as well as the extended aggregate bins are detachably connected, so that the basic aggregate bin and the extended aggregate bin can be replaced according to actual needs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the paver of the present invention;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the drainage body of the present invention;

[0026] Figure 3 This is a schematic diagram of the bottom structure of the paver of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the paver of the present invention;

[0028] Figure 5 This is one of the schematic diagrams showing the installation method of the main body of the paver of the present invention;

[0029] Figure 6 This is a second schematic diagram of the installation method of the paver body of the present invention;

[0030] Figure 7 This is a schematic diagram illustrating the material feeding principle of the paver of the present invention;

[0031] Figure 8 This is a schematic diagram of the scraper structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the expansion chamber structure of the present invention;

[0033] Figure 10 This is a schematic diagram of the tire structure of the present invention;

[0034] Figure 11 This is a side view of the tire structure of the present invention;

[0035] Figure 12 This is a schematic diagram of the replacement structure of the basic collection box and the extended collection box of the present invention;

[0036] Figure 13 This is a schematic diagram of the basic inner plate structure of the present invention;

[0037] Figure 14 This is a schematic diagram of the extended inner plate and straight plate structure of the present invention. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] To address the issue of symmetrical material distribution based on a specific material (i.e., material 1), using a method of "...-material 3-material 2-material 1-material 2-material 3-...", a first embodiment is proposed. This embodiment discloses a symmetrical discharge combined paver. See [link to relevant documentation]. Figure 1In the diagram, 110 is the basic aggregate bin, 200A is the first extended aggregate bin, and 200B is the second extended aggregate bin. The basic aggregate bin 110, the first extended aggregate bin 200A, and the second extended aggregate bin 200B are sequentially arranged along the paver's travel direction. The basic aggregate bin 110 is filled with drainage material, the first extended aggregate bin 200A is filled with thick filter material II, and the second extended aggregate bin 200B is filled with thick filter material I. Wherein:

[0040] Thick reverse filter media is spread on both sides of the drainage body material;

[0041] Thick filter media one is spread on both sides of thick filter media two;

[0042] like Figure 2 As shown, the following is obtained through the above-mentioned material distribution method: Thick reverse filter material one - Thick reverse filter material two - Drainage material - Thick reverse filter material two - Thick reverse filter material one.

[0043] Combination Figure 1 and Figure 3 As shown, the bottom of the aforementioned basic aggregate bin 110 is provided with a basic aggregate bin material laying port 120. Figure 3 In the diagram, a dashed line is drawn along the path of the combined paver and passing through the central axis of the foundation aggregate box paving opening 120. The dashed line shows the path of the combined paver (i.e., the paving path of the drainage material) in this embodiment. The bottom of the first extended aggregate box 200A is provided with the first extended aggregate box paving opening 220A2 and the second extended aggregate box paving opening 220A1 on the left and right sides of the path, respectively. The bottom of the second extended aggregate box 200B is provided with the third extended aggregate box paving opening 220B2 and the fourth extended aggregate box paving opening 220B1 on the left and right sides of the path, respectively.

[0044] The expansion aggregate box openings on both sides of the base aggregate box opening (approximately 120mm) are arranged in a stepped pattern, with the distance between the expansion aggregate box openings and the path increasing towards the front. This is to ensure that the thick filter media (material 1 and material 2) falling through the expansion aggregate box openings can sequentially fall on both sides of the drainage material, achieving optimal drainage. Figure 2 The fabric arrangement is shown.

[0045] Back Figure 1 A first guide plate 210A and a second guide plate 210B are respectively provided in the first extended collection box 200A and the second extended collection box 200B. See Figure 4 As shown, both the first guide plate 210A and the second guide plate 210B are inverted "V" shaped structures, and the specific connection method is as follows:

[0046] See Figure 5 and Figure 6As shown in the diagram, A represents the iron outer shell, B1 and B2 are the first and second iron partitions respectively, and C1 and C2 are the first and second iron "V" shaped plates respectively. First, the iron outer shell A is welded together. Then, the first iron partition B1 and the second iron partition B2 are welded inside the iron outer shell A. Figure 3 and Figure 5 As shown, a base aggregate bin 110, a first extended aggregate bin 200A, and a second extended aggregate bin 200B are obtained by separating the base aggregate bin 110, the base aggregate bin 200A, and the second extended aggregate bin 200B through the first iron partition B1 and the second iron partition B2. The base aggregate bin 110 has a base aggregate bin laying opening 120 at its bottom. The first extended aggregate bin 200A has two outer sides adjacent to the base aggregate bin laying opening 120, respectively, a first extended aggregate bin laying opening 220A2 and a second extended aggregate bin laying opening 220A1. The second extended aggregate bin 200B has a third extended aggregate bin laying opening 220B2 and a fourth extended aggregate bin laying opening 220B1 adjacent to the outer sides of the first extended aggregate bin laying opening 220A2 and the second extended aggregate bin laying opening 220A1, respectively. Then, combined with... Figure 1 and Figure 6 As shown, the first iron "V" shaped plate C1 and the second iron "V" shaped plate C2 are welded into the first extended collection box 200A and the second extended collection box 200B respectively to form the first guide plate 210A and the second guide plate 210B respectively. The openings of the first iron "V" shaped plate C1 and the second iron "V" shaped plate C2 face downwards. The two ends of the first iron "V" shaped plate C1 are connected to the first extended collection box laying opening 220A2 and the second extended collection box laying opening 220A1 respectively. The second iron "V" shaped plate C2 is connected to the third extended collection box laying opening 220B2 and the fourth extended collection box laying opening 220B1 respectively.

[0047] Furthermore, the material flowing out through the basic aggregate bin outlet 120, the first extended aggregate bin outlet 220A2, the second extended aggregate bin outlet 220A1, the third extended aggregate bin outlet 220B2, and the fourth extended aggregate bin outlet 220B1 has thickness requirements. Therefore, please refer to... Figure 3As shown, a first side plate 1301 and a second side plate 1302 are provided on both sides of the bottom of the basic aggregate bin's material laying opening 120. The first side plate 1301 and the second side plate 1302 extend towards the bottom of the second extended aggregate bin's material laying opening 220A1 and the first extended aggregate bin's material laying opening 220A2, respectively. A third side plate 230A1 is provided on the outside of the second extended aggregate bin's material laying opening 220A1, extending towards the bottom of the fourth extended aggregate bin's material laying opening 220B1. A fourth side plate 230A2 is provided on the outside of the first extended aggregate bin's material laying opening 220A2, extending towards the bottom of the third extended aggregate bin's material laying opening 220B2. Similarly, a fifth side plate 230B2 and a sixth side plate 230B1 are provided on the outside of the third extended aggregate bin's material laying opening 220B2 and the fourth extended aggregate bin's material laying opening 220B1, respectively. Figure 3 and 4 As shown, where:

[0048] On the front side of the bottom of the material laying opening 120 of the foundation aggregate box, a first baffle 140 is provided between the first side plate 1301 and the second side plate 1302. The bottom of the material laying opening 120 of the foundation aggregate box forms a material dropping space 150 of the foundation aggregate box under the enclosure of the first side plate 1301, the second side plate 1302 and the first baffle 140.

[0049] A second baffle 240A1 is provided on the front side of the bottom of the second extended aggregate box laying opening 220A1, between the third side plate 230A1 and the first side plate 1301. The bottom of the second extended aggregate box laying opening 220A1 forms a second extended aggregate box dropping space 250A1 under the enclosure of the third side plate 230A1, the first side plate 1301 and the second baffle 240A1.

[0050] On the front side of the bottom of the first extended aggregate box laying opening 220A2, a third baffle 240A2 is provided between the fourth side plate 230A2 and the second side plate 1302. The bottom of the first extended aggregate box laying opening 220A2 forms a first extended aggregate box dropping space 250A2 under the enclosure of the fourth side plate 230A2, the second side plate 1302 and the third baffle 240A2.

[0051] Similarly, a fourth baffle 240B2 and a fifth baffle 240B1 are respectively provided on the front side of the bottom of the third extended aggregate box laying port 220B2 and the fourth extended aggregate box laying port 220B1, and the third extended aggregate box dropping space 250B2 and the fourth extended aggregate box dropping space 250B1 are respectively formed at the bottom of the third extended aggregate box laying port 220B2 and the fourth extended aggregate box laying port 220B1.

[0052] When carrying out the paving, participants Figure 1 , Figure 3 and Figure 4As shown, firstly, the drainage material, thick filter media II, and thick filter media I are filled into the foundation collection box 110, the first extended collection box 200A, and the second extended collection box 200B, respectively, wherein:

[0053] The drainage material in the foundation aggregate bin 110 falls directly into the foundation aggregate bin drop space 150 through the foundation aggregate bin laying port 120.

[0054] The thick reverse filter material 2 in the first extended collection box 200A falls into the first extended collection box discharge space 250A2 and the second extended collection box discharge space 250A1 respectively through the first extended collection box discharge port 220A2 and the second extended collection box discharge port 220A1;

[0055] The thick filter media in the second extended collection box 200B falls into the third extended collection box discharge space 250B2 and the fourth extended collection box discharge space 250B1 respectively through the third extended collection box discharge port 220B2 and the fourth extended collection box discharge port 220B1.

[0056] See Figure 7 As shown ( Figure 7 The position of the combined paver is determined by the material paving opening 120 of the foundation aggregate box. After the material is dropped, the combined paver in the initial position forms the initial material dropping area. Then, the combined paver moves forward one path segment (the length of one path segment is equal to the length of one foundation aggregate box material paving opening 120), forming the first path segment and the first path segment material dropping area. At this time, the drainage material in the first path segment material dropping area overlaps with part of the thick filter material in the initial material dropping area. Next, it moves forward another path segment, forming the second path segment and the second path segment material dropping area. The drainage material in the second path segment material dropping area, part of the thick filter material in the first path segment material dropping area, and part of the thick filter material in the initial material dropping area overlap, forming an overlapping section. After this, as the combined paver continues to move, the paving distance of the overlapping section gradually increases.

[0057] The distribution pattern of the material cross-section in the overlapping section is as follows: Figure 2 As shown, the material is spread in a pattern of "thick reverse filter material one - thick reverse filter material two - drainage material - thick reverse filter material two - thick reverse filter material one". The thickness of the material is consistent with the height of any of the above side plates (i.e., the height of the material drop space).

[0058] It should be noted that, see Figure 7 As shown, due to the presence of the side plates, there will be gaps between the materials when they are dropped. Since the thickness of the side plates is generally 0.3-0.7cm, and the length of the entire overlapping section is 2m-3m or even longer, the materials will fill the gaps as they fall under their own gravity, and the impact on the thickness of the material paving is negligible.

[0059] As for the empty sections at the head and tail of the entire material dropping area, they are filled manually.

[0060] join Figure 1 and Figure 4 As shown, during the paving process described above, the function of the first guide plate 210A is to guide the thick filter material II in the first extended collection box 200A to the first extended collection box laying port 220A2 and the second extended collection box laying port 220A1 respectively, achieving symmetrical discharge. On the one hand, this avoids the accumulation of the thick filter material II in the first extended collection box 200A. On the other hand, the first guide plate 210A only diverts the thick filter material II in the first extended collection box 200A without dividing the first extended collection box 200A into two chambers. Therefore, it is not necessary to separately add the material during filling, maintaining the original size of the receiving opening of the first extended collection box 200A. Moreover, the thick filter material II in the space above the first guide plate 210A can be evenly discharged through the first extended collection box laying port 220A2 and the second extended collection box laying port 220A1 after being guided by it, ensuring the consistency of discharge on both sides.

[0061] Similarly, the function of the second guide plate 210B is to achieve symmetrical material discharge from the second extended collection box 200B, and to ensure the consistency of material discharge from the third extended collection box opening 220B2 and the fourth extended collection box opening 220B1.

[0062] See Figure 3 As shown, during the paving process, the material is laid in a drop space at the bottom of each paving opening through the support of the side plates and baffles, so as to ensure the thickness of the material paving. The paving thickness is usually 30cm-40cm. It can also change the discharge direction of the material. Because the material can only enter the drop space first under the obstruction of the side plates and baffles, the material cannot slide out to the outside. It can only move forward with the combined paver and spread the material backward on the surface to be paved.

[0063] It should be noted that the aforementioned side panels include the first side panel 1301, the second side panel 1302, the third side panel 230A1, the fourth side panel 230A2, the fifth side panel 230B2, and the sixth side panel 230B1; the aforementioned baffles include the first baffle 140, the second baffle 240A1, the third baffle 240A2, the fourth baffle 240B2, and the fifth baffle 240B1.

[0064] As an improvement to this embodiment, see Figure 8As shown in the figure, 300 is a scraper, 310 is an adjusting screw, and 320 is a fixing plate. One end of the fixing plate 320 is welded and fixed to the upper rear side of the fourth extended collection box's material drop space 250B1. The adjusting screw 310 passes vertically through the fixing plate 320 and is threaded to it. The bottom end of the adjusting screw 310 is rotatably connected to the scraper 300, so that the scraper 300 falls on the rear side of the fourth extended collection box's material drop space 250B1. Preferably, the scraper 300 is inclined. In use, the adjusting screw 310 is rotated with a wrench. By adjusting the forward or reverse rotation of the adjusting screw 310, the scraper 300 is raised or lowered, thereby adjusting the thickness of the thick filter material 1 spread on the surface to be laid. The specific adjustment range is between 10-50mm.

[0065] It should be noted that, Figure 8 Taking the fourth extended collection box drop space 250B1 as an example, in reality, the basic collection box drop space 150, the second extended collection box drop space 250A1, the first extended collection box drop space 250A2, and the third extended collection box drop space 250B2 are all equipped with corresponding scraper plates 300 (the fixing plate 320 can be welded to the wall adjacent to the drop space).

[0066] As an improvement to this embodiment, see Figure 9 As shown in the figure, 400 is the expansion bin. The expansion bin 400 is set on the top of the basic collection bin 110, the first expansion collection bin 200A and the second expansion collection bin 200B. The expansion bin 400 not only expands the capacity of the original collection bin, but also adopts a flared design, which facilitates feeding.

[0067] also, Figure 9 In the diagram, 500 is a connecting ear. When an expansion chamber 400 is present, the connecting ear 500 is fixed to the top edge of the expansion chamber 400 (i.e., the solid line portion). When there is no expansion chamber, the connecting ear 500 is fixed to the top edge of the collection box (i.e., the dashed line portion).

[0068] The function of the connecting ear 500 is to connect the towing rope to achieve the purpose of towing the paver. Usually, mobile equipment such as engineering vehicles are used to tow the paver forward to achieve the paving of materials.

[0069] As an improvement to this embodiment, see Figure 10 As shown in the figure, 600 is a tire and 610 is a tire axle. The tire axle 610 is provided in the bottom cavity of the second guide plate 210B. The tire axle 610 is set parallel to the x-axis, and the tire 600 is coaxially rotatably connected to the tire axle 610.

[0070] When using, please refer to Figure 11As shown, when the paver is dragged forward, the front tires 600 greatly improve the paver's maneuverability. On uneven terrain, the front tires 600 can better adapt to the undulations of the surface to be paved and maintain the stability of the bucket. In addition, the front tires 600 do not interfere with the material dropping process, and the rear of the paver will vibrate up and down, which helps to break the adhesion between materials, making it easier for the materials to slide out of their respective aggregate bins.

[0071] Second embodiment, see Figure 12 As shown, the basic aggregate box 110, the first extended aggregate box 200A, and the second extended aggregate box 200B are arranged sequentially along the paver's travel direction. In this embodiment, the basic aggregate box 110, the first extended aggregate box 200A, and the second extended aggregate box 200B can be replaced.

[0072] Similarly, a base aggregate box laying opening 120 is provided at the bottom of the base aggregate box 110. The bottom of the first extended aggregate box 200A is provided with a first extended aggregate box laying opening 220A2 and a second extended aggregate box laying opening 220A1 on the left and right sides of the path, respectively. The bottom of the second extended aggregate box 200B is provided with a third extended aggregate box laying opening 220B2 and a fourth extended aggregate box laying opening 220B1 on the left and right sides of the path, respectively. Figure 12 (not shown in the figure), but a U-shaped side plate 113 is provided at the bottom of each material outlet. Its function is to form the same material dropping space as in the first embodiment. The difference is that the U-shaped side plate 113 can be replaced synchronously with the material collection box.

[0073] It should be noted that:

[0074] In the first and second embodiments, three aggregate bins are provided because only three types of materials are needed during the paving process of the homogeneous earth dam. However, if the actual needs change, more aggregate bins can be provided, but at least two. In the first embodiment, once the paver is completed, the aggregate bins cannot be replaced. In the second embodiment, the aggregate bins can be flexibly adjusted according to actual needs. On the one hand, this can increase the number of paving layers of material in the lateral direction. On the other hand, it can adjust the width of the material paving, generally between 30-50cm.

[0075] Third embodiment, see Figure 13 As shown in the figure, 110 is the basic aggregate box. Two basic inner plates 114 are symmetrically arranged inside the basic aggregate box 110. The bottom of the two basic inner plates 114 is provided with a basic movable plate. A first telescopic rod is provided between the basic movable plate and the basic aggregate box 110 and the basic movable plate. The width of the material dropping space 150 formed between the two basic movable plates is adjusted by the extension and retraction of the first telescopic rod, which is the width of the drainage material when it is spread.

[0076] See Figure 14 As shown in the figure, 200 is an extended collection box. Two extended inner plates 210 are symmetrically arranged inside the extended collection box 200. Each of the two extended inner plates 210 is rotatably connected to a movable side plate 211 at its bottom. A second telescopic rod is provided between the movable side plate 211 and the extended collection box 200. The extension and retraction of the second telescopic rod is used to adjust the position of the movable side plate 211. In addition, two straight plates 220 connected in an inverted "V" shape are arranged between the two extended inner plates 210. The two straight plates 220 are rotatably connected to form a guide plate. Vertical side plates 221 are rotatably connected to the bottom of the two straight plates 220. A vertical plate 222 is located at the bottom of the extended collection box 200 between the two vertical side plates 221. A third telescopic rod is provided between the vertical plate 222 and the vertical side plate 221. The width of the material drop space formed between the vertical side plate 221 and the movable side plate 211, i.e., the width when the thick reverse filter material is spread, is adjusted by extending and retracting the third telescopic rod.

[0077] That is, the width of the material laying opening 120 of the basic aggregate box 110 can be adjusted by the bottom ends of the two extended inner plates 210 moving away from or closer to each other;

[0078] The bottom ends of the extended inner plate 210 and the straight plate 220 on the same side of the extended aggregate box 200 are moved away from or close to each other to adjust the width of the material spreading opening of the extended aggregate box on that side.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A symmetrical discharge type joint paver characterized by, It includes: A base aggregate tank for paving drainage body material; At least two extension aggregate tanks; The base aggregate tank and the extension aggregate tank are arranged in sequence along the paving machine travel direction; The paving machine travel direction is determined as the front side, and the base aggregate tank is located at the rear side of the paving machine; The extension aggregate tank is used for paving thick filter material on both sides of the drainage body material paving path; During the paving machine travel, the thick filter material is paved in advance on both sides to form a barrier for providing lateral support to the later-paved drainage body material; The base aggregate tank is provided with a base aggregate tank paving opening at the bottom, and the extension aggregate tank is symmetrically provided with an extension aggregate tank paving opening with the drainage body material paving path as the axis of symmetry; The inner side edges of the two extension aggregate tank paving openings on the front side are collinear with the outer side edge of the base aggregate tank paving opening, and the inner side edges of the two extension aggregate tank paving openings on the front side are collinear with the outer side edges of the two extension aggregate tank paving openings on the rear side; The extension aggregate tank is provided with a guide plate connected in the shape of a "V", and the two ends of the guide plate are respectively connected to the extension aggregate tank paving openings on both sides of the bottom of the extension aggregate tank, and the vertex height of the guide plate is lower than the upper edge height of the extension aggregate tank.

2. The symmetrical discharge type joint paver according to claim 1, characterized by The distance between the two extension aggregate tank paving openings on the front side is greater than the distance between the two extension aggregate tank paving openings on the rear side.

3. The symmetrical discharge type joint paver according to claim 1, wherein The bottom of the base aggregate tank paving opening and the extension aggregate tank paving opening is provided with a side plate, and under the support of the side plate, the bottom of the base aggregate tank paving opening and the extension aggregate tank paving opening respectively forms a base aggregate tank material falling space and an extension aggregate tank material falling space; Wherein, the rear side of the base aggregate tank material falling space and the extension aggregate tank material falling space is provided with a fixed plate (320), the fixed plate (320) is vertically penetrated and connected with an adjusting screw (310) through threads, the bottom end of the adjusting screw (310) is rotatably connected with a material scraping plate (300), and the adjusting screw (310) is selectively adjusted to be higher or lower by forward rotation or reverse rotation, so that the paving thickness of the material is controlled between 10-50mm.

4. The symmetrical discharge type joint paver according to claim 1, wherein The base aggregate tank and the extension aggregate tank are symmetrically provided with two inner plates; The guide plate in the extension aggregate tank is composed of two straight plates (220), and the top ends of the two straight plates (220) are rotatably connected; Wherein, the base aggregate tank realizes the adjustment of the width of the base aggregate tank paving opening by moving away or close to each other at the bottom of the two inner plates; The same side inner plate and the straight plate (220) in the extension aggregate tank realize the adjustment of the width of the extension aggregate tank paving opening by moving away or close to each other at the bottom.

5. Symmetrical discharge type combination paver according to any one of claims 1-4, characterized in that The base aggregate tank and the extension aggregate tank, and the extension aggregate tank and the extension aggregate tank are detachably connected, so that the base aggregate tank and the extension aggregate tank can be replaced according to actual needs.

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