Telescopic guardrails, screeds and pavers

Abstract

The present invention provides a telescopic baffle, a screed plate and a paving machine. The telescopic baffle includes: a front baffle, which is arranged at one end of the main baffle of the screed plate, the front baffle is movably connected to the main frame of the screed plate and can perform telescopic movement relative to the main baffle; a side baffle, which is arranged at one end of the front baffle away from the main baffle; a first adjustment mechanism, which is arranged at one end of the main baffle close to the front baffle, the first adjustment mechanism is movably connected to the front baffle, and is used to adjust the height of the part of the front baffle close to the main baffle; a second adjustment mechanism, which is arranged on the side baffle, the second adjustment mechanism is movably connected to the front baffle, and is used to adjust the height of the part of the front baffle away from the main baffle. The technical solution of the present invention reduces the overall weight of the front baffle and changes the operating position, which is conducive to reducing the difficulty of the height adjustment operation, and can perform the height adjustment operation during the paving operation, which improves the convenience of operation and is conducive to improving the quality and efficiency of the paving operation.

Description

Technical Field

[0001] The present application relates to the technical field of screed plates, and in particular to a telescopic baffle, a screed plate and a paver. Background Art

[0002] A paver is one of the common road construction machines. During the paving operation, the paving material is guided and spread through the ironing plate. Usually, telescopic baffles are provided at both ends of the ironing plate in the width direction to expand the paving area. In order to adjust the height of the telescopic baffle, the ironing plate in the prior art is provided with an adjustment mechanism on the telescopic baffle, but the adjustment mechanism is located in the middle of the telescopic baffle, and it is extremely inconvenient to perform manual adjustment operations at the construction site. The height of the telescopic baffle cannot be adjusted during the paving operation, which seriously affects the paving efficiency and paving quality. In addition, the structure of the adjustment mechanism is relatively complex, and the arrangement on the telescopic baffle increases the overall weight of the telescopic baffle. When the adjustment mechanism performs height adjustment operations, it needs to overcome a greater reaction force, which further increases the difficulty of the adjustment operation. Summary of the invention

[0003] According to the embodiments of the present invention, it is intended to improve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, an object according to an embodiment of the present invention is to provide a telescopic baffle.

[0005] Another object of an embodiment of the present invention is to provide a screed.

[0006] Another object of an embodiment of the present invention is to provide a paving machine.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention provides a retractable baffle, including: a front baffle, arranged at one end of a main baffle of an ironing plate, the front baffle being movably connected to a main frame of the ironing plate and capable of telescopic movement relative to the main baffle; a side baffle, arranged at an end of the front baffle away from the main baffle; a first adjustment mechanism, arranged at an end of the main baffle close to the front baffle, the first adjustment mechanism being movably connected to the front baffle and used for adjusting the height of a portion of the front baffle close to the main baffle; a second adjustment mechanism, arranged on the side baffle, the second adjustment mechanism being movably connected to the front baffle and used for adjusting the height of a portion of the front baffle away from the main baffle.

[0008] According to an embodiment of the first aspect of the present invention, the telescopic baffle includes a front baffle, a side baffle, a first adjustment mechanism and a second adjustment mechanism, and can be used for the ironing plate of the paver. The front baffle is arranged at one end of the main baffle of the ironing plate along the width direction of the paver, and is movably connected to the main frame of the ironing plate; the front baffle is extended outward from the main baffle according to construction needs through telescopic movement relative to the main baffle, and is used to guide the paving material to facilitate the paving operation of the paving material, thereby expanding the working area of ​​the ironing plate, so that the material on the front side of the ironing plate is laid more evenly, so as to improve the paving operation effect of the paver, and at the same time improve the paving construction efficiency of the paver. By arranging a side baffle at one end of the front baffle away from the main baffle, the paving material on the side of the ironing plate is guided, and at the same time, it is convenient to connect the telescopic drive mechanism of the ironing plate.

[0009] The first adjustment mechanism is arranged at one end of the main baffle close to the front baffle, and the second adjustment mechanism is arranged on the side baffle, and the first adjustment mechanism and the second adjustment mechanism are both movably connected to the front baffle, so as to adjust the height of the part of the front baffle close to the main baffle and the part away from the main baffle respectively, so as to make the overall height of the front baffle adapt to the road surface according to construction needs.

[0010] The telescopic baffle in this solution changes the installation positions of the first adjustment mechanism and the second adjustment mechanism, so that the operator can perform height adjustment operations on the side of the telescopic baffle, which can avoid contact with the paving materials, and can perform height adjustment operations during the paving operation, thereby improving the convenience of operation and facilitating the quality and efficiency of the paving operation. In addition, the first adjustment mechanism and the second adjustment mechanism do not need to be supported by the front baffle, which reduces the overall weight of the front baffle and further reduces the difficulty of the height adjustment operation.

[0011] In addition, the telescopic baffle in the above technical solution provided according to the embodiment of the present invention may also have the following additional technical features:

[0012] In the above technical solution, at least one slide rail is provided on the side of the front baffle plate facing the main board frame, and the slide rail extends toward the main baffle plate; the first adjustment mechanism is provided with a slide rod, and the slide rod is slidably connected to the slide rail; wherein, the front baffle plate realizes telescopic movement relative to the main baffle plate by sliding the slide rail relative to the slide rod.

[0013] In this technical solution, a slide rail extending toward the main baffle is provided on the side of the front baffle toward the main frame, and the first adjustment mechanism is provided with a slide rod slidably connected to the slide rail. The slide rail is sleeved on the slide rod, so that the front baffle cooperates with the first adjustment mechanism, and the slide rail slides relative to the slide rod to drive the front baffle to perform telescopic movement relative to the main baffle. The number of slide rails can be one or more. When the number of slide rails is multiple, the multiple slide rails are spaced apart and parallel to each other in the height direction; accordingly, the number of slide rods is the same as the number of slide rails, and each slide rail cooperates with one of the slide rods. The slide rail can be a semi-open round tube structure, a square tube structure, or a structure of other shapes, and the slide rod can correspondingly be a round rod, a square rod, or other structure compatible with the slide rail.

[0014] In the above technical scheme, the first adjustment mechanism also includes: an adjustment rod, which is arranged along the height direction, threads are provided at both ends of the adjustment rod, and a first operating structure for adjusting the height is provided at the top of the adjustment rod; a first fixed seat, which is connected to the top of the main board frame, and a first threaded hole is provided on the first fixed seat, the top of the adjustment rod passes through the top plate of the main board frame and cooperates with the first threaded hole, and the part of the adjustment rod passing through the first threaded hole is connected to the first locking nut; a second fixed seat, which is arranged below the first fixed seat along the height direction, and the second fixed seat is provided with a first through hole extending along the height direction, and the bottom end of the adjustment rod passes through the first through hole and is connected to the second locking nut; a sliding seat, a sliding rod is provided on one side of the sliding seat, and a connecting column is provided on the other side of the sliding seat, and the connecting column is connected to the second fixed seat; wherein, a first long hole is provided on the side plate of the main board frame, and the long side of the first long hole extends along the height direction, and the connecting column passes through the first long hole and is connected to the second fixed seat.

[0015] In this technical solution, the first adjustment mechanism includes an adjustment rod, a first fixed seat, a second fixed seat, a sliding seat and a sliding rod. The first fixed seat is connected to the top of the main frame and is provided with a first threaded hole in the height direction; the second fixed seat is arranged below the first fixed seat and is provided with a first through hole coaxial with the first threaded hole. The adjustment rod is arranged in the height direction and is provided with threads at both ends; the top of the adjustment rod passes through the top plate of the main frame and is threadedly connected to the first fixed seat through the first threaded hole, and the part of the adjustment rod passing through the first threaded hole and located above the first fixed seat is connected to the first locking nut to lock the adjustment rod. Among them, the top of the adjustment rod is provided with a first operating structure for manual height adjustment operation, such as a structure with a square or hexagonal cross-section, so as to cooperate with the operating tool to rotate the adjustment rod. The bottom end of the adjustment rod passes through the first through hole and is connected to the second locking nut below the second fixed seat, so that the second fixed seat is connected to the adjustment rod, and the adjustment rod can be rotated relative to the second fixed seat.

[0016] The sliding seat is arranged on the side of the second fixed seat, and a sliding rod is arranged on the side of the sliding seat close to the front baffle, so as to form a sliding connection through the cooperation between the sliding rail and the sliding rod; a connecting column is arranged on the side of the sliding seat close to the second fixed seat. The sliding seat and the second fixed seat are respectively located on both sides of the side plate of the main frame, and a first long hole is arranged on the side plate of the main frame corresponding to the connecting column, and the first long hole extends along the height direction; the connecting column passes through the first long hole and is connected to the second fixed seat, so as to realize the movable connection between the front baffle and the first adjustment mechanism. When performing the height adjustment operation, the adjustment rod rotates and moves in the height direction relative to the first fixed seat at the same time, and the adjustment rod drives the second fixed seat and the sliding seat to move in the height direction together, thereby changing the height of the front baffle; the first long hole can guide and limit the connecting column.

[0017] In the above technical solution, a positioning shoulder is provided on the adjusting rod, and the end face of the positioning shoulder is abutted against the top face of the second fixed seat; and / or a thread is provided on the end of the connecting column away from the sliding seat, and a second threaded hole matching the connecting column is provided on the second fixed seat, and the connecting column is threadedly connected to the second fixed seat through the second threaded hole, and one end of the connecting column passing through the second threaded hole is connected to the third locking nut; and / or a first reinforcement plate is provided on one side of the sliding rail of the front baffle, and multiple second reinforcement plates are respectively provided at both ends of the front baffle.

[0018] In this technical solution, a positioning shoulder is provided on the adjusting rod, and the positioning shoulder is located at the top of the second fixing seat, that is, the diameter of the portion of the adjusting rod extending into the first through hole is smaller than the diameter of the portion located above the second fixing seat; the end face of the positioning shoulder is arranged to abut against the top surface of the second fixing seat to position the second fixing seat and prevent the second fixing seat from axial displacement relative to the adjusting rod.

[0019] By providing a thread on the end of the connecting column away from the sliding seat, a second threaded hole matching the connecting column is correspondingly provided on the second fixed seat, so that the connecting column and the second threaded hole form a threaded connection; one end of the connecting column passing through the second threaded hole is connected to the third locking nut, so that the sliding seat and the second fixed seat are fixedly connected and easy to disassemble.

[0020] A first reinforcing plate is provided on one side of the front baffle where the slide rail is provided, and the first reinforcing plate is provided along the extension direction of the front baffle to enhance the overall strength of the front baffle; and a plurality of second reinforcing plates are provided at both ends of the front baffle to enhance the strength of the edge position of the front baffle.

[0021] In the above technical solution, the second adjustment mechanism includes: a screw mechanism, which is connected to the side of the side baffle facing away from the front baffle, and the screw mechanism is arranged along the height direction; a connecting mechanism, one end of the connecting mechanism is connected to the end of the front baffle away from the main baffle, and the other end of the connecting mechanism passes through the side baffle and cooperates with the screw mechanism to drive the connecting mechanism and the front baffle to move in the height direction through the screw mechanism.

[0022] In this technical solution, the second adjustment mechanism includes a screw mechanism and a connecting mechanism. The screw mechanism is connected to the side of the side baffle facing away from the front baffle, so as to support the screw mechanism through the side baffle and facilitate the operation of the screw mechanism from the side; the screw mechanism is arranged along the height direction, one end of the connecting mechanism is connected to the end of the front baffle away from the main baffle, and the other end passes through the side baffle to cooperate with the screw mechanism to realize the movable connection between the screw mechanism and the front baffle, and then when the screw of the screw mechanism rotates, the front baffle is driven to move in the height direction through the connecting mechanism to realize the height adjustment. It can be understood that at the paving construction site, the paving machine body is in front of the screed plate, and there are paving materials on the road surface. If the operator enters the paving area to adjust the height of the front baffle, the operation is inconvenient and there are certain safety hazards. When operating from the side, there is no need to enter the paving operation area, the operation is more convenient, and the safety hazards are reduced.

[0023] In the above technical scheme, the screw mechanism includes: a mounting seat, connected to the side of the side baffle facing away from the front baffle, a second through hole is provided on the mounting top plate of the mounting seat; a screw is arranged along the height direction, the top end of the screw passes through the second through hole, and the part of the screw located above the mounting top plate is provided with a boss structure extending in the radial direction, the bottom surface of the boss structure is abutted against the mounting top plate, and the top of the screw is provided with a second operating structure for adjusting the height; a pressing plate is arranged above the mounting top plate and is detachably connected to the mounting top plate, a countersunk hole matching the boss structure is provided on the pressing plate, the pressing plate is sleeved on the screw, and the screw is axially limited by the countersunk hole and the boss structure; a mounting bracket is arranged below the mounting top plate and connected to the side of the side baffle facing away from the front baffle, a third through hole is provided on the mounting bracket facing the screw, and the bottom end of the screw passes through the third through hole; wherein, a second long hole is provided on the side baffle, the long side of the second long hole extends along the height direction, and the connecting mechanism passes through the second long hole and cooperates with the screw.

[0024] In this technical solution, the screw mechanism specifically includes a mounting seat, a screw, a pressure plate and a mounting bracket. The mounting seat and the mounting bracket are both connected to the side of the side baffle facing away from the front baffle, and the mounting bracket is located below the mounting top plate of the mounting seat; a second through hole is provided on the mounting top plate, and a third through hole coaxial with the second through hole is provided on the mounting bracket. The screw is arranged in the height direction, the top end of the screw passes through the second through hole, and the bottom end of the screw passes through the third through hole; a boss structure extending radially is provided at the position of the screw above the mounting top plate, the diameter of the boss structure is greater than the diameter of the second through hole, and the bottom surface of the boss structure abuts against the mounting top plate, so as to support the screw through the mounting top plate. A pressure plate is detachably connected to the mounting top plate, the pressure plate is sleeved on the screw, and a countersunk hole matching the shape of the boss structure is provided on the side of the pressure plate facing the mounting top plate, and the boss structure is located in the countersunk hole, so as to axially limit the screw through the pressure plate. The connecting mechanism passes through the second long hole on the side baffle and forms a threaded fit with the screw rod; the top of the screw rod is provided with a second operating structure for height adjustment, such as a structure with a square or hexagonal cross section, so as to cooperate with the operating tool to rotate the screw rod. The rotation of the screw rod drives the connecting mechanism to move along the screw rod in the height direction to achieve the height adjustment of the front baffle, and the long side of the second long hole extends in the height direction to guide and limit the connecting mechanism.

[0025] In the above technical solution, the connecting mechanism includes: a connecting block, one end of the connecting block is fixedly connected to the end of the front baffle away from the main baffle, and the other end of the connecting block extends in the direction close to the screw; a rotating joint, the rotating joint is rotatably connected to the connecting block and can rotate in a vertical plane, the rotating joint is provided with a third threaded hole matching the screw, and the rotating joint is threadedly connected to the screw through the third threaded hole, so that the rotating joint and the connecting block can be driven to move in the height direction through the rotation of the screw.

[0026] In this technical solution, the connecting mechanism includes a connecting block and a rotating joint. The connecting block is fixedly connected to one end of the front baffle away from the main baffle, and the end of the connecting block away from the front baffle extends in the direction close to the screw rod, and is rotatably connected to the rotating joint, so that the rotating joint can rotate in a vertical plane. The rotating joint is provided with a third threaded hole, and the rotating joint passes through the second long hole, and cooperates with the screw rod through the third threaded hole to achieve a threaded connection with the screw rod. When the screw rod rotates, the rotating joint moves along the axial direction of the screw rod, and drives the connecting block and the front baffle plate to move in the height direction together. Among them, when the rotating joint moves along the axial direction of the screw rod, it rotates relative to the connecting block, so that the third threaded hole of the rotating joint always remains coaxial with the screw rod, and prevents the third threaded hole from being stuck with the screw rod due to tilting.

[0027] In the above technical solution, a groove is provided at the end of the connecting block extending from the front baffle, the groove is recessed in the direction close to the front baffle, and a pin hole is provided on the two side walls of the groove respectively; a protrusion structure is provided at the end of the rotating joint close to the connecting block, the protrusion structure extends into the groove, and is hinged with the connecting block through the cooperation of the pin hole and the pin shaft; wherein a retaining ring cooperating with the pin shaft is provided in each pin hole to limit the pin shaft.

[0028] In this technical solution, a groove is provided at one end of the connection block extending from the front baffle, and the groove is recessed in the direction close to the front baffle; accordingly, a convex structure is provided at one end of the rotary joint close to the connection block, and the shape of the convex structure is adapted to the groove and extends into the groove. A pin hole is provided on each of the two side walls of the groove, and the two pin holes are coaxially arranged. Correspondingly, a pin hole is also provided on the convex structure, and the pin shaft cooperates with the pin hole to realize the hinge connection between the convex structure and the connection block. In addition, retaining rings cooperating with the pin shaft are provided in each of the two pin holes of the groove to limit the pin shaft and prevent the pin shaft from loosening.

[0029] According to an embodiment of the second aspect of the present invention, there is provided an ironing plate for a paving machine, comprising: a main ironing plate assembly, comprising a main frame and a main baffle, the main baffle being arranged on the front side of the main frame along the length direction of the paving machine; two telescopic baffles as in any embodiment of the first aspect above, arranged on both ends of the main baffle along the width direction of the paving machine; a telescopic driving mechanism, connected to the main frame, the driving end of the telescopic driving mechanism being connected to the side baffles of the telescopic baffle, so as to drive the telescopic baffle to perform telescopic movement relative to the main baffle; wherein, in the length direction of the paving machine, the front baffle of one telescopic baffle is located on the front side of the main baffle, and the front baffle of the other telescopic baffle is located on the rear side of the main baffle.

[0030] According to an embodiment of the second aspect of the present invention, the screed plate includes a main screed plate assembly, two telescopic baffles in the embodiment of the first aspect and a telescopic driving mechanism. The main screed plate assembly includes a main frame and a main baffle. When the screed plate is assembled on the paver, the main baffle is arranged along the width direction of the paver and is located in front of the main frame in the length direction of the paver; the two telescopic baffles are respectively arranged at both ends of the main baffle along the width direction of the paver, and the front baffle of one telescopic baffle is located in front of the main baffle, and the front baffle of the other telescopic baffle is located at the rear of the main baffle to prevent the two front baffles from interfering with each other during the contraction process. A telescopic driving mechanism is connected to the main frame, each front baffle is movably connected to the main frame, and each telescopic baffle is connected to the driving end of the telescopic driving mechanism to perform telescopic movement relative to the main baffle under the action of the telescopic driving mechanism. Among them, the first adjustment mechanism and the second adjustment mechanism of the telescopic baffle are used to adjust the height of the front baffle to meet the needs of paving operations.

[0031] In addition, the ironing plate in the present solution also has all the beneficial effects of the telescopic baffle in any one of the above-mentioned first aspect embodiments, which will not be repeated here.

[0032] According to an embodiment of the third aspect of the present invention, a paver is provided, comprising: a paver body; a screed plate as in the embodiment of the second aspect above, arranged at the rear of the paver body, and a front baffle of the screed plate can extend outward or retract inward along the width direction of the paver body.

[0033] In this technical solution, the paving machine includes a paving machine body and the ironing plate in the embodiment of the second aspect described above. The paving machine body drives the ironing plate to move, so that the main baffle plate and the front baffle plate of the ironing plate are used to guide the paving materials in the working area, and then the paving materials are spread to form a road surface. The front baffle plate of the ironing plate can extend outward or retract inward in the width direction of the paving machine body to adjust the working area of ​​the ironing plate. The front baffle plate of the ironing plate can change its height under the action of the first adjustment mechanism and the second adjustment mechanism to meet the needs of the paving operation. In addition, the paving machine in this solution also has all the beneficial effects of the ironing plate in the embodiment of the second aspect described above.

[0034] Additional aspects and advantages of embodiments of the present invention will become apparent in the following description or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the embodiments of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 A schematic diagram of an ironing board according to an embodiment of the present invention is shown;

[0037] Figure 2 A schematic diagram of a telescopic baffle according to an embodiment of the present invention is shown;

[0038] Figure 3 A schematic diagram of a first adjustment mechanism according to an embodiment of the present invention is shown;

[0039] Figure 4 A schematic diagram showing a first adjustment mechanism according to an embodiment of the present invention is shown;

[0040] Figure 5 shows a cross-sectional view of a first adjustment mechanism according to an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of a front baffle according to an embodiment of the present invention is shown;

[0042] Figure 7 shows a schematic assembly diagram of a second adjustment mechanism according to an embodiment of the present invention;

[0043] Figure 8 A schematic diagram showing a connecting mechanism and a front baffle according to an embodiment of the present invention is shown;

[0044] Fig. 9 Shows Figure 7 A magnified view of part A;

[0045] Fig.10 shows a cross-sectional view of a screw mechanism according to an embodiment of the present invention;

[0046] Fig.11 A schematic diagram showing a connection mechanism according to an embodiment of the present invention is shown;

[0047] Fig.12 A schematic diagram of an ironing board according to an embodiment of the present invention is shown;

[0048] Fig.13 A schematic diagram of a paving machine according to an embodiment of the present invention is shown.

[0049] in, Figures 1 to 13 The corresponding relationship between the reference numerals and component names is as follows:

[0050] 1 telescopic baffle, 11 front baffle, 111 slide rail, 112 first reinforcement plate, 113 second reinforcement plate, 12 side baffle, 13 first adjustment mechanism, 131 adjustment rod, 1311 first operating structure, 1312 positioning shoulder, 132 first fixed seat, 1321 first threaded hole, 1322 first locking nut, 133 second fixed seat, 1331 first through hole, 1332 second locking nut, 1333 second threaded hole, 1334 third locking nut, 134 sliding seat, 1341 sliding rod, 1342 connecting column, 14 second adjustment mechanism, 141 screw mechanism, 142 connecting mechanism, 143 mounting seat, 1431 mounting Install the top plate, 1432 install the vertical plate, 1433 the second through hole, 144 the screw, 1441 the boss structure, 1442 the second operating structure, 145 the pressure plate, 1451 the countersunk hole, 146 the mounting bracket, 1461 the third through hole, 147 the connecting block, 1471 the groove, 1472 the pin hole, 1473 the pin shaft, 1474 the retaining ring, 148 the rotating joint, 1481 the third threaded hole, 1482 the boss structure, 15 the second long hole, 2 the ironing plate, 21 the main ironing plate assembly, 211 the main frame, 2111 the top plate, 2112 the side plate, 212 the main baffle plate, 213 the first long hole, 22 the telescopic driving mechanism, 3 the paver, 31 the paver body. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments according to the present invention, the embodiments according to the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments according to the present invention. However, the embodiments according to the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0053] Refer to the following Figures 1 to 13 A telescopic guard, a screed and a paver according to some embodiments of the present invention are described.

[0054] Embodiment 1

[0055] This embodiment provides a retractable baffle 1 that can be used for the ironing board 2 of a paving machine. Figure 1 As shown, the telescopic baffle 1 includes a front baffle 11 , a side baffle 12 , a first adjustment mechanism 13 and a second adjustment mechanism 14 .

[0056] The front baffle 11 is arranged at one end of the main baffle 212 of the screed plate 2 along the width direction of the paver, and is movably connected to the main frame 211 of the screed plate 2; the front baffle 11 can be telescopically moved relative to the main baffle 212 according to construction needs, so that when the front baffle 11 is extended outward from the main baffle 212, the paving material is guided so that the paving material is evenly laid on the working road surface, so as to facilitate the paving operation, thereby expanding the working area of ​​the screed plate 2, and making the material on the front side of the screed plate 2 more evenly laid, so as to improve the paving operation effect of the paver, and at the same time improve the paving construction efficiency of the paver. A side baffle 12 is arranged at one end of the front baffle 11 away from the main baffle 212, and the side baffle 12 is arranged along the length direction of the paver to guide the paving material on the side of the screed plate 2 to prevent the paving material from moving out of the paving area. When the telescopic baffle 1 is assembled on the screed plate 2 , the telescopic driving mechanism 22 of the screed plate 2 can be connected via the side baffles 12 .

[0057] In response to different construction requirements, the height of the front baffle 11 from the ground is different. The first adjustment mechanism 13 and the second adjustment mechanism 14 of the telescopic baffle 1 are respectively arranged at both ends of the front baffle 11 along the width direction of the paver, that is, the first adjustment mechanism 13 is arranged at one end of the main baffle 212 close to the front baffle 11, and the second adjustment mechanism 14 is arranged on the side baffle 12, and the first adjustment mechanism 13 and the second adjustment mechanism 14 are both movably connected to the front baffle 11, and the height of the part of the front baffle 11 close to the main baffle 212 and the part away from the main baffle 212 can be adjusted respectively, so that the overall height of the front baffle 11 is adapted to the road surface.

[0058] The telescopic baffle 1 in this embodiment changes the installation positions of the first adjustment mechanism 13 and the second adjustment mechanism 14. On the one hand, this makes it unnecessary for the first adjustment mechanism 13 and the second adjustment mechanism 14 to be supported by the front baffle 11, thereby reducing the overall weight of the front baffle 11 and helping to reduce the difficulty of height adjustment operations. On the other hand, it allows the operator to perform height adjustment operations on the side of the telescopic baffle 1 to avoid contact with the paving materials, and allows height adjustment operations to be performed during the paving operation, thereby improving operational convenience and helping to improve the quality and efficiency of the paving operation.

[0059] Embodiment 2

[0060] This embodiment provides a telescopic baffle 1, which is further improved on the basis of the first embodiment.

[0061] like Figure 1 and Figure 2 As shown, a slide rail 111 extending toward the main baffle 212 is provided on the side of the front baffle 11 facing the main frame 211, that is, in the length direction of the paver, a slide rail 111 is provided on the rear side of the front baffle 11; there are two slide rails 111, both extending in the direction of the main baffle 212, that is, the slide rails 111 extend along the width direction of the paver; the two slide rails 111 are parallel to each other and are spaced apart in the height direction.

[0062] Correspondingly, the first adjustment mechanism 13 is provided with two slide bars 1341 which are slidably connected with the slide rail 111. The slide rail 111 is sleeved on the slide bar 1341. The slide rail 111 slides relative to the slide bar 1341, driving the front baffle 11 to telescopically move relative to the main baffle 212. When the first adjustment mechanism 13 performs a height adjustment operation, the slide bar 1341 and the slide rail 111 transmit a force to the front baffle 11, so that the part of the front baffle 11 close to the main baffle 212 moves in the height direction. Among them, the slide rail 111 is a semi-open round tube, and the slide bar 1341 is a round rod, but the slide rail 111 and the slide bar 1341 are not limited to the structural form of the present embodiment, and can also be a square tube and a square rod or other structural forms. Of course, the number of the slide rails 111 can also be one or more, and accordingly, the number of the slide bars 1341 is the same as the number of the slide rails 111, and each slide rail 111 cooperates with one of the slide bars 1341.

[0063] Embodiment 3

[0064] This embodiment provides a telescopic baffle 1, which is further improved on the basis of the second embodiment. Figures 1 to 5 As shown, the first adjustment mechanism 13 specifically includes an adjustment rod 131 , a first fixing seat 132 , a second fixing seat 133 , a sliding seat 134 and a sliding rod 1341 .

[0065] The first fixing seat 132 is connected to the top of the main frame 211 and is provided with a first threaded hole 1321 along the height direction; the second fixing seat 133 is disposed below the first fixing seat 132 and is provided with a first through hole 1331 coaxial with the first threaded hole 1321 .

[0066] The adjustment rod 131 is arranged along the height direction, and both ends of the adjustment rod 131 are provided with threads; the top end of the adjustment rod 131 passes through the top plate 2111 of the main frame 211, and cooperates with the first threaded hole 1321 to realize the threaded connection between the adjustment rod 131 and the first fixed seat 132; the part of the adjustment rod 131 passing through the first threaded hole 1321 and located above the first fixed seat 132 is connected with the first locking nut 1322, so as to lock the adjustment rod 131 through the first locking nut 1322. Among them, the top of the adjustment rod 131 is provided with a first operating structure 1311, and the cross section of the first operating structure 1311 is square, so as to cooperate with the operating tool to perform the height adjustment operation and rotate the adjustment rod 131. It should be noted that the first operating structure 1311 can also be a structure with a hexagonal cross section or other shapes.

[0067] The bottom end of the adjustment rod 131 passes through the first through hole 1331 and is connected to the second locking nut 1332 below the second fixing seat 133, so that the second fixing seat 133 is connected to the adjustment rod 131, and the adjustment rod 131 can rotate relative to the second fixing seat 133. Further, a positioning shoulder 1312 is provided on the portion of the adjustment rod 131 located above the second fixing seat 133, that is, the diameter of the portion of the adjustment rod 131 extending into the first through hole 1331 is smaller than the diameter of the portion located above the second fixing seat 133, and the end surface of the positioning shoulder 1312 abuts against the top surface of the second fixing seat 133, so that the second fixing seat 133 is axially positioned by the positioning shoulder 1312 and the second locking nut 1332, and the second fixing seat 133 is prevented from axial displacement relative to the adjustment rod 131.

[0068] The sliding seat 134 is arranged at the side of the second fixed seat 133. Two sliding rods 1341 are arranged on the side of the sliding seat 134 close to the front baffle 11. The two sliding rods 1341 cooperate with the two slide rails 111 on the front baffle 11 to form a sliding connection. A connecting column 1342 is arranged on the side of the sliding seat 134 close to the second fixed seat 133. The sliding seat 134 and the second fixed seat 133 are respectively located on the two sides of the side plate 2112 of the main frame 211. The sliding seat 134 is located at the front side of the side plate 2112, and the second fixed seat 133 is located at the rear side of the side plate 2112. A first long hole 213 is arranged on the side plate 2112 of the main frame 211. The long side of the first long hole 213 extends in the height direction and corresponds to the connecting column 1342. The connecting column 1342 passes through the first long hole 213 and is fixedly connected to the second fixed seat 133, thereby realizing the movable connection between the front baffle 11 and the first adjustment mechanism 13. Specifically, a thread is provided at one end of the connecting column 1342 away from the sliding seat 134, and a second threaded hole 1333 matching the connecting column 1342 is provided on the second fixed seat 133. The connecting column 1342 is threadedly connected with the second fixed seat 133 through the second threaded hole 1333, and one end of the connecting column 1342 passes through the second threaded hole 1333 and is connected to the third locking nut 1334 to lock the connecting column 1342.

[0069] When the height adjustment operation is performed, the adjustment rod 131 rotates, and the adjustment rod 131 and the first fixed seat 132 are threadedly matched, so that the adjustment rod 131 moves in the height direction relative to the first fixed seat 132, and the second fixed seat 133 and the sliding seat 134 move in the height direction under the drive of the adjustment rod 131, thereby driving the baffle to move in the height direction, so as to achieve the height adjustment of the portion of the front baffle 11 close to the main baffle 212. Among them, the first long hole 213 can play a role in guiding and limiting the connecting column 1342.

[0070] Furthermore, if Figure 6As shown, the front baffle 11 is provided with a first reinforcing plate 112 on one side of the slide rail 111. The first reinforcing plate 112 is located below the slide rail 111 and is provided along the extension direction of the front baffle 11 to enhance the strength of the front baffle 11. A plurality of second reinforcing plates 113 are provided at both ends of the front baffle 11 to enhance the strength of the edge of the front baffle 11.

[0071] Embodiment 4

[0072] This embodiment provides a telescopic baffle 1, which is further improved on the basis of the first embodiment. Figure 1 , Figure 7 and Figure 8 As shown, the second adjustment mechanism 14 includes a screw mechanism 141 and a connecting mechanism 142 .

[0073] The screw mechanism 141 is connected to the side of the side baffle 12 facing away from the front baffle 11, so that the screw mechanism 141 is supported by the side baffle 12, and it is convenient for the operator to operate the screw mechanism 141 from the side. The screw mechanism 141 is arranged along the height direction; one end of the connecting mechanism 142 is connected to the end of the front baffle 11 away from the main baffle 212, and the other end passes through the side baffle 12 and cooperates with the screw mechanism 141, so that when the screw 144 of the screw mechanism 141 rotates, the front baffle 11 is driven to move in the height direction through the connecting mechanism 142 to achieve height adjustment.

[0074] Embodiment 5

[0075] This embodiment provides a telescopic baffle 1, which is further improved on the basis of the fourth embodiment. Figure 1 , Figures 7 to 11 As shown, the screw mechanism 141 specifically includes a mounting seat 143 , a screw 144 , a pressing plate 145 and a mounting bracket 146 , and the connecting mechanism 142 specifically includes a connecting block 147 and a rotating joint 148 .

[0076] The mounting seat 143 and the mounting bracket 146 are both connected to the side of the side baffle 12 facing away from the front baffle 11, and the mounting bracket 146 is located below the mounting top plate 1431 of the mounting seat 143. The mounting seat 143 includes a mounting vertical plate 1432 and a mounting top plate 1431 that are fixedly connected to each other, and the mounting top plate 1431 is provided with a second through hole 1433; the mounting bracket 146 is provided with a third through hole 1461 coaxial with the second through hole 1433.

[0077] The screw 144 is arranged in the height direction and passes through the second through hole 1433 and the third through hole 1461. The top end of the screw 144 is located above the mounting top plate 1431 and is provided with a boss structure 1441 extending in the radial direction. The diameter of the boss structure 1441 is greater than the diameter of the second through hole 1433, and the bottom surface of the boss structure 1441 abuts against the mounting top plate 1431, so as to support the screw 144 through the mounting top plate 1431. The mounting top plate 1431 is provided with a pressing plate 145, which is sleeved on the screw 144 and bolted to the mounting top plate 1431; the pressing plate 145 is provided with a countersunk hole 1451 matching the shape of the boss structure 1441 on one side facing the mounting top plate 1431, and the boss structure 1441 is located in the countersunk hole 1451, and the screw 144 is axially limited by the pressing plate 145. The top of the screw 144 is provided with a second operating structure 1442 for height adjustment, and the cross section of the second operating structure 1442 is square, so as to cooperate with the operating tool to rotate the screw 144. It should be noted that the second operating structure 1442 can also be a hexagonal cross section or other structural forms that can cooperate with the operating tool.

[0078] The connecting block 147 is fixedly connected to one end of the front baffle 11 away from the main baffle 212. The end of the connecting block 147 away from the front baffle 11 extends toward the direction close to the screw rod 144 and is rotatably connected to the rotating joint 148, so that the rotating joint 148 can rotate in a vertical plane. Specifically, a groove 1471 is provided at one end of the connecting block 147 extending from the front baffle 11, and the groove 1471 is recessed in the direction close to the front baffle 11; accordingly, a protrusion structure 1482 is provided at one end of the rotating joint 148 close to the connecting block 147, and the shape of the protrusion structure 1482 is adapted to the groove 1471; a pin hole 1472 is respectively provided on the two side walls of the groove 1471, and the two pin holes 1472 are coaxially arranged, and correspondingly, a pin hole 1472 is also provided on the protrusion structure 1482, and the protrusion structure 1482 extends into the groove 1471, and cooperates with the pin hole 1472 through the pin shaft 1473, so as to realize the hinge connection between the protrusion structure 1482 and the connecting block 147. A retaining ring 1474 cooperating with the pin shaft 1473 is respectively provided in the two pin holes 1472 of the groove 1471 to limit the pin shaft 1473. The groove 1471 may be a U-shaped groove or a C-shaped groove, and the rotating joint 148 may be a structure with a cross-sectional shape similar to a T. The rotating joint 148 is provided with a third threaded hole 1481 , and the axial direction of the third threaded hole 1481 is perpendicular to the axial direction of the pin hole 1472 .

[0079] The side baffle 12 is provided with a second long hole 15 corresponding to the screw 144, and the long side of the second long hole 15 extends in the height direction. The rotating joint 148 passes through the second long hole 15 and cooperates with the screw 144 through the third threaded hole 1481 to achieve a threaded connection between the rotating joint 148 and the screw 144. When the screw 144 rotates, the rotating joint 148 moves along the axial direction of the screw 144, and drives the connecting block 147 and the front baffle 11 to move in the height direction together. Among them, when the rotating joint 148 moves along the axial direction of the screw 144, it rotates relative to the connecting block 147, so that the third threaded hole 1481 of the rotating joint 148 always remains coaxial with the screw 144, preventing the third threaded hole 1481 from being stuck with the screw 144 due to tilting.

[0080] Embodiment 6

[0081] This embodiment provides a telescopic baffle 1, which can be used for the ironing board 2 of a paving machine. Figures 1 to 11 As shown, the telescopic baffle 1 includes a front baffle 11 , a side baffle 12 , a first adjustment mechanism 13 and a second adjustment mechanism 14 .

[0082] The front baffle 11 is arranged at one end of the main baffle 212 of the screed plate 2 along the width direction of the paving machine, and is movably connected to the main frame 211 of the screed plate 2; the front baffle 11 can be telescopically moved relative to the main baffle 212 according to construction needs. The end of the front baffle 11 away from the main baffle 212 is provided with a side baffle 12, and the side baffle 12 is arranged along the length direction of the paving machine. The first adjustment mechanism 13 and the second adjustment mechanism 14 are respectively arranged at the two ends of the front baffle 11 along the width direction of the paving machine, that is, the first adjustment mechanism 13 is arranged at one end of the main baffle 212 close to the front baffle 11, and the second adjustment mechanism 14 is arranged on the side baffle 12, and the first adjustment mechanism 13 and the second adjustment mechanism 14 are both movably connected to the front baffle 11, and the height of the part of the front baffle 11 close to the main baffle 212 and the part away from the main baffle 212 can be adjusted respectively, so that the overall height of the front baffle 11 is adapted to the road surface.

[0083] A slide rail 111 extending toward the main baffle 212 is provided on the side of the front baffle 11 facing the main frame 211, that is, in the length direction of the paver, a slide rail 111 is provided on the rear side of the front baffle 11; there are two slide rails 111, both extending toward the main baffle 212, that is, the slide rail 111 extends along the width direction of the paver; the two slide rails 111 are parallel to each other and are spaced apart in the height direction. Among them, the slide rail 111 is a semi-open circular tube structure. A first reinforcing plate 112 is provided at the portion of the front baffle 11 located below the slide rail 111, and the first reinforcing plate 112 is provided along the extension direction of the front baffle 11 to enhance the strength of the front baffle 11. A plurality of second reinforcing plates 113 are provided at both ends of the front baffle 11 to enhance the strength of the edge position of the front baffle 11.

[0084] The first adjustment mechanism 13 specifically includes an adjustment rod 131, a first fixing seat 132, a second fixing seat 133, a sliding seat 134 and a sliding rod 1341. The first fixing seat 132 is connected to the top of the main frame 211 and is provided with a first threaded hole 1321 along the height direction; the second fixing seat 133 is provided below the first fixing seat 132 and is provided with a first through hole 1331 coaxial with the first threaded hole 1321.

[0085] The adjustment rod 131 is arranged along the height direction, and both ends of the adjustment rod 131 are provided with threads; the top end of the adjustment rod 131 passes through the top plate 2111 of the main frame 211, and cooperates with the first threaded hole 1321 to realize the threaded connection between the adjustment rod 131 and the first fixed seat 132; the part of the adjustment rod 131 passing through the first threaded hole 1321 and located above the first fixed seat 132 is connected with the first locking nut 1322, so as to lock the adjustment rod 131 through the first locking nut 1322. Among them, the top of the adjustment rod 131 is provided with a first operating structure 1311, and the cross section of the first operating structure 1311 is square, so as to cooperate with the operating tool to perform the height adjustment operation and rotate the adjustment rod 131. It should be noted that the first operating structure 1311 can also be a structure with a hexagonal cross section or other shapes.

[0086] The bottom end of the adjustment rod 131 passes through the first through hole 1331 and is connected to the second locking nut 1332 below the second fixing seat 133, so that the second fixing seat 133 is connected to the adjustment rod 131, and the adjustment rod 131 can rotate relative to the second fixing seat 133. Further, a positioning shoulder 1312 is provided on the portion of the adjustment rod 131 located above the second fixing seat 133, that is, the diameter of the portion of the adjustment rod 131 extending into the first through hole 1331 is smaller than the diameter of the portion located above the second fixing seat 133, and the end surface of the positioning shoulder 1312 abuts against the top surface of the second fixing seat 133, so that the second fixing seat 133 is axially positioned by the positioning shoulder 1312 and the second locking nut 1332, and the second fixing seat 133 is prevented from axial displacement relative to the adjustment rod 131.

[0087] The sliding seat 134 is arranged at the side of the second fixed seat 133. Two sliding rods 1341 are arranged on the side of the sliding seat 134 close to the front baffle 11. The two sliding rods 1341 cooperate with the two slide rails 111 on the front baffle 11 to form a sliding connection. A connecting column 1342 is arranged on the side of the sliding seat 134 close to the second fixed seat 133. The sliding seat 134 and the second fixed seat 133 are respectively located on the two sides of the side plate 2112 of the main frame 211. The sliding seat 134 is located at the front side of the side plate 2112, and the second fixed seat 133 is located at the rear side of the side plate 2112. A first long hole 213 is arranged on the side plate 2112 of the main frame 211. The long side of the first long hole 213 extends in the height direction and corresponds to the connecting column 1342. The connecting column 1342 passes through the first long hole 213 and is fixedly connected to the second fixed seat 133, thereby realizing the movable connection between the front baffle 11 and the first adjustment mechanism 13. Specifically, a thread is provided at one end of the connecting column 1342 away from the sliding seat 134, and a second threaded hole 1333 matching the connecting column 1342 is provided on the second fixed seat 133. The connecting column 1342 is threadedly connected with the second fixed seat 133 through the second threaded hole 1333, and one end of the connecting column 1342 passes through the second threaded hole 1333 and is connected to the third locking nut 1334 to lock the connecting column 1342.

[0088] When the height adjustment operation is performed through the first adjustment mechanism 13, the adjustment rod 131 rotates, and the adjustment rod 131 and the first fixed seat 132 are threadedly matched, so that the adjustment rod 131 moves in the height direction relative to the first fixed seat 132, and the second fixed seat 133 and the sliding seat 134 move in the height direction driven by the adjustment rod 131, thereby driving the baffle to move in the height direction, so as to achieve the height adjustment of the portion of the front baffle 11 close to the main baffle 212. Among them, the first long hole 213 can play a role in guiding and limiting the connecting column 1342.

[0089] The second adjustment mechanism 14 includes a screw mechanism 141 and a connecting mechanism 142. The screw mechanism 141 is connected to the side of the side baffle 12 facing away from the front baffle 11, so that the screw mechanism 141 is supported by the side baffle 12, and it is convenient for the operator to operate the screw mechanism 141 from the side. The screw mechanism 141 specifically includes a mounting seat 143, a screw 144, a pressure plate 145 and a mounting bracket 146, and the connecting mechanism 142 specifically includes a connecting block 147 and a rotating joint 148. The mounting seat 143 and the mounting bracket 146 are both connected to the side of the side baffle 12 facing away from the front baffle 11, and the mounting bracket 146 is located below the mounting top plate 1431 of the mounting seat 143. The mounting seat 143 includes a mounting vertical plate 1432 and a mounting top plate 1431 which are fixedly connected to each other. The mounting top plate 1431 is provided with a second through hole 1433 . The mounting bracket 146 is provided with a third through hole 1461 which is coaxial with the second through hole 1433 .

[0090] The screw 144 is arranged in the height direction and passes through the second through hole 1433 and the third through hole 1461. The top end of the screw 144 is located above the mounting top plate 1431 and is provided with a boss structure 1441 extending in the radial direction. The diameter of the boss structure 1441 is greater than the diameter of the second through hole 1433, and the bottom surface of the boss structure 1441 abuts against the mounting top plate 1431, so as to support the screw 144 through the mounting top plate 1431. The mounting top plate 1431 is provided with a pressing plate 145, which is sleeved on the screw 144 and bolted to the mounting top plate 1431; the pressing plate 145 is provided with a countersunk hole 1451 matching the shape of the boss structure 1441 on one side facing the mounting top plate 1431, and the boss structure 1441 is located in the countersunk hole 1451, and the screw 144 is axially limited by the pressing plate 145. The top of the screw 144 is provided with a second operating structure 1442 for height adjustment, and the cross section of the second operating structure 1442 is square, so as to cooperate with the operating tool to rotate the screw 144. It should be noted that the second operating structure 1442 can also be a hexagonal cross section or other structural forms that can cooperate with the operating tool.

[0091] The connecting block 147 is fixedly connected to one end of the front baffle 11 away from the main baffle 212. The end of the connecting block 147 away from the front baffle 11 extends toward the direction close to the screw rod 144 and is rotatably connected to the rotating joint 148, so that the rotating joint 148 can rotate in a vertical plane. Specifically, a groove 1471 is provided at one end of the connecting block 147 extending from the front baffle 11, and the groove 1471 is recessed in the direction close to the front baffle 11; accordingly, a protrusion structure 1482 is provided at one end of the rotating joint 148 close to the connecting block 147, and the shape of the protrusion structure 1482 is adapted to the groove 1471; a pin hole 1472 is respectively provided on the two side walls of the groove 1471, and the two pin holes 1472 are coaxially arranged, and correspondingly, a pin hole 1472 is also provided on the protrusion structure 1482, and the protrusion structure 1482 extends into the groove 1471, and cooperates with the pin hole 1472 through the pin shaft 1473, so as to realize the hinge connection between the protrusion structure 1482 and the connecting block 147. A retaining ring 1474 cooperating with the pin shaft 1473 is respectively provided in the two pin holes 1472 of the groove 1471 to limit the pin shaft 1473. The groove 1471 may be a U-shaped groove or a C-shaped groove, and the rotating joint 148 may be a structure with a cross-sectional shape similar to a T. The rotating joint 148 is provided with a third threaded hole 1481 , and the axial direction of the third threaded hole 1481 is perpendicular to the axial direction of the pin hole 1472 .

[0092] The side baffle 12 is provided with a second long hole 15 corresponding to the screw 144, and the long side of the second long hole 15 extends in the height direction. The rotating joint 148 passes through the second long hole 15, and cooperates with the screw 144 through the third threaded hole 1481 to achieve a threaded connection between the rotating joint 148 and the screw 144. When the height adjustment operation is performed through the second adjustment mechanism 14, the rotation of the screw 144 drives the rotating joint 148 to move along the axial direction of the screw 144, and drives the connecting block 147 and the part of the front baffle 11 away from the main baffle 212 to move in the height direction. Among them, when the rotating joint 148 moves along the axial direction of the screw 144, it rotates relative to the connecting block 147, so that the third threaded hole 1481 of the rotating joint 148 always remains coaxial with the screw 144, preventing the third threaded hole 1481 from being stuck with the screw 144 due to tilting.

[0093] The telescopic baffle 1 in this embodiment changes the structure and installation position of the first adjustment mechanism 13 and the second adjustment mechanism 14. On the one hand, this makes it unnecessary for the first adjustment mechanism 13 and the second adjustment mechanism 14 to be supported by the front baffle 11, thereby reducing the overall weight of the front baffle 11 and helping to reduce the difficulty of height adjustment operations. On the other hand, it allows the operator to perform height adjustment operations on the side of the telescopic baffle 1 to avoid contact with the paving materials, and allows height adjustment operations to be performed during the paving operation, thereby improving operational convenience and helping to improve the quality and efficiency of the paving operation.

[0094] Embodiment 7

[0095] This embodiment provides an ironing board 2, such as Fig.12 and Fig.13 As shown, the ironing plate 2 includes a main ironing plate assembly 21 , two telescopic baffles 1 in any of the above-mentioned embodiments, and a telescopic driving mechanism 22 .

[0096] The main screed assembly 21 includes a main frame 211 and a main baffle 212. When the screed 2 is assembled on the paving machine, the main baffle 212 is arranged along the width direction of the paving machine, and in the length direction of the paving machine, the main frame 211 is located at the rear side of the main baffle 212. Two telescopic baffles 1 are respectively arranged at both ends of the main baffle 212 along the width direction of the paving machine, and the front baffle 11 of one telescopic baffle 1 is located at the front side of the main baffle 212, and the front baffle 11 of the other telescopic baffle 1 is located at the rear side of the main baffle 212, so as to prevent the two front baffles 11 from interfering with each other during the telescopic movement.

[0097] The telescopic drive mechanism 22 is connected to the main frame 211, each front baffle 11 is movably connected to the main frame 211, and the side baffle 12 of each telescopic baffle 1 is connected to the driving end of the telescopic drive mechanism 22, so that the front baffle 11 is driven to telescope relative to the main baffle 212 under the action of the telescopic drive mechanism 22. The first adjustment mechanism 13 and the second adjustment mechanism 14 of the telescopic baffle 1 are used to adjust the height of the front baffle 11 to meet the needs of paving operations.

[0098] Furthermore, the number of telescopic drive mechanisms 22 can be two, and each telescopic drive mechanism 22 corresponds to a telescopic baffle 1, so as to drive each telescopic baffle 1 respectively. Among them, the front baffle 11 is located on the front side of the main baffle 212, and the installation position of the corresponding telescopic drive mechanism 22 is close to the main baffle 212 in the length direction of the paving machine, while the front baffle 11 is located on the rear side of the main baffle 212, and the installation position of the corresponding telescopic drive mechanism 22 is relatively far away from the main baffle 212 in the length direction of the paving machine.

[0099] In addition, the ironing plate 2 in this embodiment also has all the beneficial effects of the telescopic baffle 1 in any of the above embodiments, which will not be described in detail here.

[0100] Embodiment 8

[0101] This embodiment provides a paving machine 3, such as Fig.12 and Fig.13 As shown, the paving machine 3 includes a paving machine body 31 and a screed plate 2 in any of the above-mentioned embodiments. The paving machine body 31 drives the screed plate 2 to move, so as to use the main baffle plate 212 and the front baffle plate 11 of the screed plate 2 to guide the paving materials in the working area, and then to perform paving operations on the paving materials so that the paving materials form a road surface. Among them, the front baffle plate 11 of the screed plate 2 can perform telescopic movements relative to the main baffle plate 212 in the width direction of the paving machine body 31, so as to extend outward or retract inward as needed, thereby expanding the working area. At the same time, the front baffle plate 11 can also adjust the height under the action of the first adjustment mechanism 13 and the second adjustment mechanism 14 to adapt to the road surface and meet the needs of the paving operation.

[0102] In addition, the paver 3 in this embodiment also has all the beneficial effects of the ironing board 2 in any of the above embodiments.

[0103] The above, in combination with the accompanying drawings, describes in detail the technical solutions according to some embodiments of the present invention. By changing the structure and installation position of the first adjustment mechanism and the second adjustment mechanism, on the one hand, the first adjustment mechanism and the second adjustment mechanism do not need to be supported by the front baffle, thereby reducing the overall weight of the front baffle and helping to reduce the difficulty of the height adjustment operation; on the other hand, the operator can perform height adjustment operations on the side of the telescopic baffle to avoid contact with the paving materials, and can perform height adjustment operations during the paving operation, thereby improving the convenience of operation and helping to improve the quality and efficiency of the paving operation.

[0104] In the embodiments according to the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments according to the present invention can be understood according to specific circumstances.

[0105] In the description of the embodiments of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the technical solution of the present application.

[0106] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example according to the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] The above are only preferred embodiments according to the present invention and are not intended to limit the technical solution of the present application. For those skilled in the art, the technical solution of the present application may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the technical solution of the present application shall be included in the protection scope of the present application.

Claims

1. A telescopic baffle (1), characterized in that: include: A front baffle (11) is arranged at one end of a main baffle (212) of the ironing plate (2); the front baffle (11) is movably connected to a main frame (211) of the ironing plate (2) and is capable of telescopic movement relative to the main baffle (212); A side baffle (12) is arranged at one end of the front baffle (11) away from the main baffle (212); A first adjustment mechanism (13) is arranged at one end of the main baffle (212) close to the front baffle (11), the first adjustment mechanism (13) being movably connected to the front baffle (11) and used for adjusting the height of a portion of the front baffle (11) close to the main baffle (212); The second adjustment mechanism (14) is arranged on the side baffle (12), and the second adjustment mechanism (14) is movably connected to the front baffle (11) and is used to adjust the height of the portion of the front baffle (11) away from the main baffle (212).

2. The telescopic baffle (1) according to claim 1, characterized in that: At least one slide rail (111) is provided on a side of the front baffle (11) facing the main frame (211), and the slide rail (111) extends toward the main baffle (212); The first adjustment mechanism (13) is provided with a sliding rod (1341), and the sliding rod (1341) is slidably connected to the sliding rail (111); The front baffle (11) achieves telescopic movement relative to the main baffle (212) by sliding the slide rail (111) relative to the slide rod (1341).

3. The telescopic baffle (1) according to claim 2, characterized in that: The first adjustment mechanism (13) further comprises: An adjustment rod (131) is arranged along the height direction, two ends of the adjustment rod (131) are provided with threads, and a first operating structure (1311) for adjusting the height is provided at the top of the adjustment rod (131); A first fixing seat (132) is connected to the top of the main frame (211), and a first threaded hole (1321) is provided on the first fixing seat (132). The top end of the adjustment rod (131) passes through the top plate (2111) of the main frame (211) and matches with the first threaded hole (1321), and the portion of the adjustment rod (131) passing through the first threaded hole (1321) is connected to a first locking nut (1322); A second fixing seat (133) is arranged below the first fixing seat (132) in the height direction, the second fixing seat (133) is provided with a first through hole (1331) extending in the height direction, and the bottom end of the adjusting rod (131) passes through the first through hole (1331) and is connected to the second locking nut (1332); A sliding seat (134), wherein the sliding rod (1341) is provided on one side of the sliding seat (134), and a connecting column (1342) is provided on the other side of the sliding seat (134), and the connecting column (1342) is connected to the second fixed seat (133); A first long hole (213) is provided on the side plate (2112) of the main frame (211), and the long side of the first long hole (213) extends in the height direction, and the connecting column (1342) passes through the first long hole (213) and is connected to the second fixing seat (133).

4. The telescopic baffle (1) according to claim 3, characterized in that: The adjusting rod (131) is provided with a positioning shoulder (1312), and the end surface of the positioning shoulder (1312) abuts against the top surface of the second fixing seat (133); and / or The end of the connecting column (1342) away from the sliding seat (134) is provided with a thread, and the second fixing seat (133) is provided with a second threaded hole (1333) matching the connecting column (1342), the connecting column (1342) is threadedly connected to the second fixing seat (133) through the second threaded hole (1333), and one end of the connecting column (1342) passing through the second threaded hole (1333) is connected to the third locking nut (1334); and / or The front baffle (11) is provided with a first reinforcing plate (112) on one side of the slide rail (111), and a plurality of second reinforcing plates (113) are respectively provided at both ends of the front baffle (11).

5. The telescopic baffle (1) according to claim 1, characterized in that: The second adjustment mechanism (14) comprises: A screw mechanism (141) is connected to a side of the side baffle (12) facing away from the front baffle (11), and the screw mechanism (141) is arranged along the height direction; A connecting mechanism (142), one end of which is connected to an end of the front baffle (11) away from the main baffle (212), and the other end of the connecting mechanism (142) passes through the side baffle (12) and cooperates with the screw mechanism (141), so as to drive the connecting mechanism (142) and the front baffle (11) to move in the height direction through the screw mechanism (141).

6. The telescopic baffle (1) according to claim 5, characterized in that: The screw mechanism (141) comprises: A mounting seat (143) connected to a side of the side baffle (12) facing away from the front baffle (11), and a second through hole (1433) is provided on a mounting top plate (1431) of the mounting seat (143); A screw rod (144) is arranged in the height direction, the top end of the screw rod (144) passes through the second through hole (1433), and the portion of the screw rod (144) located above the mounting top plate (1431) is provided with a boss structure (1441) extending in the radial direction, the bottom surface of the boss structure (1441) abuts against the mounting top plate (1431), and the top of the screw rod (144) is provided with a second operating structure (1442) for adjusting the height; A pressure plate (145) is arranged above the mounting top plate (1431) and is detachably connected to the mounting top plate (1431). The pressure plate (145) is provided with a countersunk hole (1451) adapted to the boss structure (1441). The pressure plate (145) is sleeved on the screw rod (144) and axially limits the screw rod (144) through the countersunk hole (1451) and the boss structure (1441); A mounting bracket (146) is disposed below the mounting top plate (1431) and connected to a side of the side baffle (12) facing away from the front baffle (11); the mounting bracket (146) is provided with a third through hole (1461) facing the screw rod (144); and the bottom end of the screw rod (144) passes through the third through hole (1461); The side baffle plate (12) is provided with a second long hole (15), the long side of the second long hole (15) extends in the height direction, and the connecting mechanism (142) passes through the second long hole (15) and cooperates with the screw rod (144).

7. The telescopic baffle (1) according to claim 6, characterized in that: The connecting mechanism (142) comprises: a connecting block (147), one end of the connecting block (147) being fixedly connected to an end of the front baffle (11) away from the main baffle (212), and the other end of the connecting block (147) extending in a direction close to the screw rod (144); A rotating joint (148), wherein the rotating joint (148) is rotatably connected to the connecting block (147) and is capable of rotating in a vertical plane. The rotating joint (148) is provided with a third threaded hole (1481) that matches the screw rod (144). The rotating joint (148) is threadedly connected to the screw rod (144) through the third threaded hole (1481), so that the rotating joint (148) and the connecting block (147) can be driven to move in the height direction through the rotation of the screw rod (144).

8. The telescopic baffle (1) according to claim 7, characterized in that: A groove (1471) is provided at one end of the connection block (147) extending from the front baffle (11); the groove (1471) is recessed in a direction close to the front baffle (11), and a pin hole (1472) is respectively provided on two side walls of the groove (1471); The end of the rotating joint (148) close to the connecting block (147) is provided with a protrusion structure (1482), and the protrusion structure (1482) extends into the groove (1471), and is hinged with the connecting block (147) through the cooperation of the pin hole (1472) and the pin shaft (1473); Wherein, a retaining ring (1474) matching with the pin shaft (1473) is provided in each of the pin holes (1472) to limit the position of the pin shaft (1473).

9. A screed plate (2) for a paving machine (3), characterized in that: include: A main screed assembly (21), comprising a main frame (211) and a main baffle (212), wherein the main baffle (212) is arranged at the front side of the main frame (211) along the length direction of the paving machine (3); Two telescopic baffles (1) according to any one of claims 1 to 8, arranged at both ends of the main baffle (212) along the width direction of the paver (3); A telescopic drive mechanism (22) connected to the main frame (211), wherein a driving end of the telescopic drive mechanism (22) is connected to a side baffle (12) of the telescopic baffle (1) to drive the telescopic baffle (1) to perform telescopic movement relative to the main baffle (212); Wherein, in the length direction of the paving machine (3), the front baffle (11) of one of the telescopic baffles (1) is located in front of the main baffle (212), and the front baffle (11) of the other telescopic baffle (1) is located in the rear of the main baffle (212).

10. A paver (3), characterized in that: include: Paving machine body (31); The ironing plate (2) according to claim 9 is arranged at the rear part of the paving machine body (31), and the front baffle (11) of the ironing plate (2) can be extended outward or retracted inward along the width direction of the paving machine body (31).

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