Municipal road subgrade drainage ditch laying mechanism

Abstract

The invention provides a municipal road subgrade drainage groove laying mechanism, and belongs to the field of municipal roads, the municipal road subgrade drainage groove laying mechanism comprises a laying trolley, the right side of the laying trolley is provided with an excavating mechanism, the rear side of the excavating mechanism is provided with a shaping mechanism, the laying trolley is connected with a grooving plough in an up-down sliding mode, and prefabricated drainage grooves are formed in an upper clamping rod and a lower clamping rod; the double-crank mechanism comprises a supporting plate, the upper end face of the supporting plate is fixedly connected with a protruding block, the electric push rod drives the grooving plough to move downwards by a proper height to accurately control the digging depth and the digging size, the rotating speed and time of the motor are controlled to control the folding and unfolding angle of the shaping plate, and grooves of different depths are flattened; the lower clamping rod loosens the prefabricated drainage groove, so that the prefabricated drainage groove naturally falls into the drainage ditch, the groove cover is conveyed to the upper side of the prefabricated drainage groove to be installed through circular rotation of the supporting plate and cooperation with the protruding block, the groove cover retracts back to the original position after installation is completed, the mechanical complexity is reduced, and the operation convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of municipal roads, specifically to a mechanism for laying drainage ditches for municipal roadbeds. Background Technology

[0002] Against the backdrop of continuous urbanization, municipal roads, as the core of urban infrastructure, directly affect urban operational efficiency and residents' quality of life through their construction and maintenance. Drainage systems, as a crucial component, are vital to urban drainage capacity. Traditional drainage ditch construction relies heavily on manual labor, resulting in significant problems such as high labor intensity, low construction efficiency, and high costs. Workers are prone to fatigue from prolonged physical labor, affecting both construction progress and quality assurance. Significant delays occur when facing large-scale construction demands, and rising labor costs and extended construction periods further compress project economic benefits.

[0003] Existing drainage ditch construction machinery is mostly large-scale equipment adapted for large-scale highway projects. In urban road drainage system renovation projects, it suffers from insufficient applicability and poor economic efficiency, failing to meet the demands for efficient construction in urban settings. Therefore, there is an urgent need to develop a new type of machinery to address the shortcomings of traditional construction methods and existing equipment. By optimizing the construction process, reducing reliance on manual labor, and improving operational precision, this new machinery can achieve a dual improvement in the efficiency and quality of drainage ditch construction, contributing to the modernization of urban infrastructure development. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanism for laying drainage ditches on municipal roadbeds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a municipal roadbed drainage ditch laying mechanism, comprising a laying trolley, an excavation mechanism on the right side of the laying trolley, and a shaping mechanism on the rear side of the excavation mechanism. The excavation mechanism includes an electric push rod rotatably connected to the laying trolley. A grooving plow is slidably connected to the laying trolley, and the electric push rod is used to drive the grooving plow to move up and down. A placement mechanism located on the left side of the grooving plow is fixedly connected to the laying trolley. The placement mechanism includes four sliding plates slidably connected to the laying trolley. The sliding plates are divided into left and right groups, and the two groups of sliding plates are respectively fixedly connected to an upper clamping rod and a lower clamping rod. Pre-fabricated drainage grooves are placed on both the upper and lower clamping rods. A double crank mechanism fixedly connected to the laying trolley is provided on the rear side of the placement mechanism. The double-crank mechanism includes a support plate with a protrusion fixedly connected to its upper surface. A material storage rack located above the support plate is fixedly connected to the laying trolley. Multiple trench covers are placed inside the storage rack. The electric push rod drives the grooving plow to a suitable height, precisely controlling the digging depth and dimensions. Effective digging is performed at the working position. The shaper's extension and retraction angle are controlled by adjusting the motor's rotation speed and time, achieving flattening of trenches at different depths. After the upper clamping rod lifts the prefabricated drainage trench, the lower clamping rod releases it, allowing the trench to fall naturally into the drainage ditch. The cyclic rotation of the support plate, along with the protrusion, transports the trench cover to the upper side of the prefabricated drainage trench for installation. After installation, the cover retracts to its original position, reducing mechanical complexity and improving operational convenience.

[0006] Preferably, the excavation mechanism includes two first slide rails fixedly connected to the laying trolley, and a first connecting frame is slidably connected to the first slide rails. The rear end of the first connecting frame is rotatably connected to the telescopic rod of the electric push rod, and a second connecting frame is fixedly connected to the front end of the first connecting frame and the grooving plow, so that the grooving plow can be stably driven to move up and down through the electric push rod. Preferably, the shaping mechanism includes a first motor fixedly connected to the laying trolley, a lead screw connected to the first motor, the other end of the lead screw being rotatably connected to the laying trolley, the first motor driving the lead screw to rotate, a third connecting frame located below the lead screw being slidably connected to the laying trolley, a threaded block being fixedly connected to the upper surface of the third connecting frame, the threaded block being threadedly connected to the lead screw, a shaping plate being rotatably connected to the third connecting frame, and a first swing arm being rotatably connected to the other side of the shaping plate, the other end of the first swing arm being rotatably connected to the laying trolley. Thus, by rotating the lead screw with the first motor, the threaded block and the third connecting frame are driven to move back and forth. By controlling the rotation speed and time of the first motor, the opening and closing angle of the shaping plate is controlled to achieve the flattening of trenches of different depths. Preferably, the placement mechanism includes a third motor fixedly connected to the laying trolley, a second transmission mechanism on the right side of the third motor, two worm gears rotatably connected to the laying trolley, the third motor driving the front worm gear and the second transmission mechanism to rotate, the second transmission mechanism driving the rear worm gear to rotate, two transmission shafts rotatably connected to the laying trolley, each transmission shaft being fixedly connected to a worm wheel meshing with the worm gear, each transmission shaft being fixedly connected to a second crank, multiple second slide rails fixedly connected to the laying trolley, the second slide rails being slidably connected to the sliding plate, and a second swing arm rotatably connected between the second crank and each sliding plate. The positions of the two second cranks are adjusted to suitable different angles, so that when the third motor drives the two second cranks to rotate, the upper clamping rod first lifts the prefabricated drainage trough, and the lower clamping rod releases the lowermost prefabricated drainage trough, causing the lowermost prefabricated drainage trough to fall into the drainage ditch; Preferably, the storage rack is provided with a discharge hole, and when the pallet rotates, the protrusion drives the trough cover to move out of the discharge hole; Preferably, the double-crank mechanism includes a first connecting plate and a second connecting plate, which are fixedly connected by multiple fixed shafts. Two first cranks are rotatably connected to both the first and second connecting plates. A transmission arm is rotatably connected to one of the first cranks on the first connecting plate, and a spur gear is rotatably connected to the other end of the transmission arm. The spur gear meshes with the support plate and the second connecting plate. A slider is fixedly connected to both the spur gear and the support plate, and the slider is slidably connected to the second connecting plate. Each first crank is fixedly connected to a rotating shaft, the other end of which is fixedly connected to the laying trolley. The vehicle is fixedly connected to a side plate located on the right side of the pallet. A second motor is fixedly connected to the side plate. A first transmission mechanism is provided between the side plate and the first connecting plate. The first transmission mechanism is connected to the rotating shaft. The second motor drives the first transmission mechanism to rotate and simultaneously drives the two rotating shafts to rotate. Thus, the second motor drives the first crank to rotate. The first crank, in conjunction with the transmission arm, drives the spur gear to rotate. The spur gear drives the pallet to rotate while sliding relative to the first and second connecting plates, extending and retracting. It retracts when the slot cover is taken out and extends when the slot cover is placed, reducing mechanical complexity and improving operational convenience.

[0007] Compared with the prior art, the beneficial effects of the present invention are: This invention incorporates an electric push rod, a grooving plow, and a shaping plate. The electric push rod drives the grooving plow downwards, coordinating with the movement of the laying trolley to excavate drainage ditches in the roadbed. A first motor drives a lead screw to rotate, causing the shaping plate, with the assistance of a first swing arm, to rotate from an inclined position to a vertical one. As the shaping plate moves, it shapes the excavated trench, ensuring the shape matches the prefabricated drainage ditch. This allows for precise control of the excavation depth and dimensions, enabling effective excavation at the working position. Furthermore, by controlling the motor's rotation speed and time, the angle of the shaping plate can be adjusted to flatten trenches of varying depths.

[0008] This invention employs a double-crank mechanism, a support plate, and prefabricated drainage channels. A third motor, driven by a second transmission mechanism, drives two worm gears to rotate separately and in a crisscross pattern. The worm gears lift the prefabricated drainage channel using an upper clamping rod, while the lower clamping rod releases, causing the lowest prefabricated drainage channel to fall into the drainage ditch. Simultaneously, the second motor drives multiple first cranks to rotate back and forth. These first cranks, through a transmission arm and a spur gear, drive the support plate to rotate. As the protrusion rotates, it repeatedly extends and retracts, using it to move the channel cover from the storage rack to the top of the prefabricated drainage channel within the drainage ditch. At this point, the protrusion extends, and as it continues to rotate, it retracts, thus converting the motor's rotational motion into the reciprocating linear motion of the upper and lower clamping rods. This allows multiple prefabricated channels to be placed sequentially into pre-dug channels. The rotation of the gears pushes the channel cover, ensuring it is accurately positioned. The support plate extends forward to install the channel cover and then retracts after installation, reducing mechanical complexity and improving operational convenience. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 A three-dimensional schematic diagram of the excavation mechanism for the invention; Figure 3 A three-dimensional schematic diagram of the shaping mechanism for the invention; Figure 4 A three-dimensional schematic diagram of the invention of the double crank mechanism; Figure 5 A three-dimensional diagram showing the disassembly of the double-crank mechanism for the invention; Figure 6 This is a three-dimensional schematic diagram of the placement mechanism of the present invention; Figure 7 This is a three-dimensional schematic diagram of the second crank of the present invention.

[0010] In the diagram: 100. Laying trolley; 101. Excavating mechanism; 102. Electric push rod; 103. Grooving plow; 104. Shaping mechanism; 105. Shaping plate; 106. Placement mechanism; 107. Precast drainage ditch; 108. Storage rack; 109. Discharge hole; 110. Groove cover; 111. Double crank mechanism; 112. Support plate; 113. First slide rail; 114. First connecting frame; 115. Second connecting frame; 116. First motor; 117. Lead screw; 118. Threaded block; 119. Third connecting frame; 120. First swing arm; 121. Convex... 122. Block; 123. Side plate; 124. Second motor; 125. First transmission mechanism; 127. Rotating shaft; 128. First crank; 129. First connecting plate; 130. Fixed shaft; 131. Transmission arm; 132. Circular gear; 133. Slider; 134. Second connecting plate; 135. Third motor; 136. Second transmission mechanism; 137. Worm; 138. Worm wheel; 139. Transmission shaft; 140. Second slide rail; 141. Sliding plate; 142. Upper clamping rod; 143. Second crank; 144. Second swing arm; 145. Lower clamping rod. Detailed Implementation

[0011] 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.

[0012] Example 1: Please see Figure 1-7This invention provides a technical solution: a municipal roadbed drainage ditch laying mechanism, including a laying trolley 100, a digging mechanism 101 on the right side of the laying trolley 100, and a shaping mechanism 104 on the rear side of the digging mechanism 101. The digging mechanism 101 includes an electric push rod 102 rotatably connected to the laying trolley 100, and a grooving plow 103 slidably connected to the laying trolley 100. The electric push rod 102 is used to drive the grooving plow 103 to move up and down. A placement mechanism 106 is fixedly connected to the left side of the grooving plow 103. The placement mechanism 106 includes four sliding plates 141 slidably connected to the laying trolley 100. The sliding plates 141 are divided into two groups, left and right. The two groups of sliding plates 141 are respectively fixedly connected to an upper clamping rod 142 and a lower clamping rod 145. A prefabricated drainage groove 107 is placed on both the upper clamping rod 142 and the lower clamping rod 145. A double crank mechanism fixedly connected to the laying trolley 100 is provided at the rear of the placement mechanism 106. Structure 111, the double-crank mechanism 111 includes a support plate 112, a protrusion 121 fixedly connected to the upper end face of the support plate 112, and a storage rack 108 fixedly connected to the laying trolley 100 located on the upper side of the support plate 112. Multiple slot covers 110 are placed inside the storage rack 108. The electric push rod 102 drives the slotting plow 103 to move down to a suitable height, thereby precisely controlling the digging depth and size, performing effective digging operations at the working position, and controlling the overall digging operation by controlling the motor rotation speed and time. The angle of the forming plate 105 can be adjusted to flatten grooves of different depths. After the upper clamping rod 142 lifts the prefabricated drainage groove 107, the lower clamping rod 145 releases the prefabricated drainage groove 107, allowing it to fall naturally into the drainage ditch. The cyclic rotation of the support plate 112, in conjunction with the protrusion 121, transports the groove cover 110 to the upper side of the prefabricated drainage groove 107 for installation. After installation, it is retracted to its original position, reducing mechanical complexity and improving operational convenience.

[0013] The excavation mechanism 101 includes two first slide rails 113 fixedly connected to the laying trolley 100. The first slide rails 113 are slidably connected to a first connecting frame 114. The rear end of the first connecting frame 114 is rotatably connected to the telescopic rod of the electric push rod 102. The front end of the first connecting frame 114 is fixedly connected to a second connecting frame 115 between it and the grooving plow 103, so that the electric push rod 102 can stably drive the grooving plow 103 to move up and down. The shaping mechanism 104 includes a first motor 116 fixedly connected to the laying trolley 100. The first motor 116 is powered by a lead screw 117, and the other end of the lead screw 117 is rotatably connected to the laying trolley 100. The first motor 116 drives the lead screw 117 to rotate. The laying trolley 100 is slidably connected to a third connecting frame 119 located below the lead screw 117. A threaded block 118 is fixedly connected to the upper surface of the third connecting frame 119. The threaded block 118 is connected to the lead screw. 117 is threaded connection. The shaping plate 105 is rotatably connected to the third connecting frame 119. The other side of the shaping plate 105 is rotatably connected to the first swing arm 120. The other end of the first swing arm 120 is rotatably connected to the laying trolley 100. Thus, the first motor 116 rotates the lead screw 117, which drives the threaded block 118 and the third connecting frame 119 to move back and forth. The rotation speed and time of the first motor 116 are controlled to control the opening and closing angle of the shaping plate, so as to flatten the grooves of different depths. The placement mechanism 106 includes a third motor 135 fixedly connected to the laying trolley 100. A second transmission mechanism 136 is provided on the right side of the third motor 135. The laying trolley 100 is rotatably connected to two worm gears 137. The third motor 135 drives the front worm gear 137 and the second transmission mechanism 136 to rotate. The second transmission mechanism 136 drives the rear worm gear 137 to rotate. The laying trolley 100 is rotatably connected to two drive shafts 139. Each drive shaft 139 is fixedly connected to a worm wheel 138 that meshes with the worm gear 137. Each drive shaft 139 is fixedly connected to a second crank. 143, the laying trolley 100 is fixedly connected with multiple second slide rails 140, the second slide rails 140 are slidably connected to the sliding plate 141, and the second crank 143 is rotatably connected to each of the sliding plates 141 with a second swing arm 144. The positions of the two second cranks 143 are adjusted to suitable different angles, so that when the two second cranks 143 are rotated by the third motor 135, the upper clamping rod 142 first lifts the prefabricated drainage trough 107, and the lower clamping rod 145 releases the lowermost prefabricated drainage trough 107, so that the lowermost prefabricated drainage trough 107 falls into the drainage ditch; The storage rack 108 is provided with a discharge hole 109. When the pallet 112 rotates, the protrusion 121 drives the groove cover 110 to move out of the discharge hole 109. The double-crank mechanism 111 includes a first connecting plate 129 and a second connecting plate 134, which are fixedly connected by multiple fixed shafts 130. Two first cranks 128 are rotatably connected to both the first connecting plate 129 and the second connecting plate 134. One of the first cranks 128 in the first connecting plate 129 is rotatably connected to a transmission arm 131. A spur gear 132 is rotatably connected to the other end of the transmission arm 131. The spur gear 132 meshes with the support plate 112 and the second connecting plate 134. A slider 133 is fixedly connected to both the spur gear 132 and the support plate 112. The slider 133 is slidably connected to the second connecting plate 134. Each first crank 128 is fixedly connected to a rotating shaft 127, the other end of which is fixedly connected to the laying trolley 100. The trolley 100 is fixedly connected to a side plate 122 located to the right of the pallet 112. A second motor 123 is fixedly connected to the side plate 122. A first transmission mechanism 125 is provided between the side plate 122 and the first connecting plate 129. The first transmission mechanism 125 is connected to the rotating shaft 127. The second motor 123 drives the first transmission mechanism 125 to rotate and simultaneously drives the two rotating shafts 127 to rotate. Thus, the second motor 123 drives the first crank 128 to rotate. The first crank 128, in conjunction with the transmission arm 131, drives the spur gear 132 to rotate. The spur gear 132 drives the pallet 112 to rotate while sliding relative to the first connecting plate 129 and the second connecting plate 134, thus extending and retracting. It retracts when the slot cover 110 is taken out and extends when the slot cover 110 is placed, reducing mechanical complexity and improving operational convenience.

[0014] Working principle: First, multiple trough covers 110 are placed in the storage rack 108, and the laying trolley 100 is controlled to move along the direction of the required trenching. Then, the electric push rod 102 is activated, which drives the first connecting frame 114 to move down along the first slide rail 113. The first connecting frame 114 drives the grooving plow 103 to move down through the second connecting frame 115. At the same time, the first motor 116 drives the lead screw 117 to rotate. The rotation of the lead screw 117 drives the threaded block 118 to move, and the threaded block 118 drives the third connecting frame 119 to move, coordinating with the... A swing arm 120 drives the shaping plate 105 to tilt. The tilt angle of the shaping plate 105 changes with the height of the grooving plow 103, so that the area of ​​the lateral trench dug by the grooving plow 103 is consistent with the lateral area of ​​the shaping plate 105. The grooving plow 103 moves to dig the drainage ditch, and the shaping plate 105 moves to shape the drainage ditch, accurately controlling the digging depth and size, and performing effective digging operations at the working position. The angle of the shaping plate is controlled by controlling the rotation speed of the motor and the time, so as to flatten the trenches of different depths.

[0015] Then, the prefabricated drainage trough 107 and trough cover 110 are moved to be aligned with the direction of the drainage ditch. The third motor 135 drives the rear worm gear 137 to rotate through the second transmission mechanism 136, so that the two worm gears 137 rotate synchronously. The two worm gears 137 simultaneously drive the worm wheel 138 to rotate, the worm wheel 138 drives the transmission shaft 139 to rotate, and the rotation of the transmission shaft 139 drives the second crank 143 to rotate. The second crank 143 pulls the second swing arm 144 to drive the two upper clamping rods 142 to move closer to each other, thereby driving the two The upper clamping rod 142 and the two lower clamping rods 145 move closer or further apart. Since the initial positions of the two second cranks 143 are not consistent, by adjustment, the lower clamping rods 145 move further apart when the upper clamping rods 142 move closer together. This allows the lowermost prefabricated drainage trough 107 to fall into the drainage ditch, and the upper clamping rod 142 supports the other prefabricated drainage troughs 107 on the upper side. With the cyclic operation and the movement of the laying trolley 100, the prefabricated drainage troughs 107 can be arranged in an orderly manner in the drainage ditch. Finally, the second motor 123 drives the rotating shaft 127 to rotate via the first transmission mechanism 125. The rotation of the rotating shaft 127 drives the first crank 128 to rotate, which in turn drives the first connecting plate 129 and the second connecting plate 134 to rotate stably. When the first connecting plate 129 rotates, it drives the spur gear 132 to roll along the teeth on the second connecting plate 134 via the transmission arm 131, which in turn drives the support plate 112 to slide back and forth. This causes the support plate 112 to rotate and extend simultaneously. When the support plate 112 rotates upward, it moves the bottommost trough cover 110 out of the discharge hole 109 via the protrusion 121 and rotates it to the prefabrication trough. Simultaneously with the upper side of the water tank 107, the support plate 112 extends out, cooperating with the movement of the laying trolley 100 to install the trough cover 110 on the upper side of the prefabricated drainage trough 107, realizing automated trough digging and installation. The rotational motion of the motor is converted into the reciprocating linear motion of the upper clamping rod 142 and the lower clamping rod 145, which can sequentially place multiple prefabricated troughs into the pre-dug trench. The rotation of the gears realizes the pushing of the trough cover 110, ensuring that the trough cover 110 can be accurately pushed to the working position. The support plate 112 extends forward to install the trough cover 110, and then retracts back to its original position after installation, reducing the complexity of the machinery and improving the convenience of operation.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0017] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanism for laying drainage ditches on municipal roadbeds, comprising a laying trolley (100), characterized in that: The paving trolley (100) is equipped with a digging mechanism (101) on its right side, and a shaping mechanism (104) is provided on the rear side of the digging mechanism (101). The digging mechanism (101) includes an electric push rod (102) rotatably connected to the paving trolley (100). The paving trolley (100) is slidably connected to a grooving plow (103). The electric push rod (102) is used to drive the grooving plow (103) to move up and down. The paving trolley (100) is fixedly connected to a placement mechanism (106) located on the left side of the grooving plow (103). The placement mechanism (106) includes four sliding plates (141) slidably connected to the paving trolley (100). 1) Divided into two groups, left and right, the sliding plates (141) of the two groups are respectively fixedly connected to the upper clamping rod (142) and the lower clamping rod (145). The upper clamping rod (142) and the lower clamping rod (145) are each equipped with a prefabricated drainage groove (107). The placement mechanism (106) is provided with a double crank mechanism (111) fixedly connected to the laying trolley (100) on the rear side. The double crank mechanism (111) includes a support plate (112). The upper end face of the support plate (112) is fixedly connected to a protrusion (121). The laying trolley (100) is fixedly connected to a storage rack (108) located on the upper side of the support plate (112). The storage rack (108) contains multiple groove covers (110).

2. The municipal roadbed drainage ditch laying mechanism according to claim 1, characterized in that: The excavation mechanism (101) includes two first slide rails (113) fixedly connected to the laying trolley (100). The first slide rails (113) are slidably connected to a first connecting frame (114). The rear end of the first connecting frame (114) is rotatably connected to the telescopic rod of the electric push rod (102). The front end of the first connecting frame (114) is fixedly connected to a second connecting frame (115) between it and the grooving plow (103).

3. The municipal roadbed drainage ditch laying mechanism according to claim 1, characterized in that: The shaping mechanism (104) includes a first motor (116) fixedly connected to the laying trolley (100), the first motor (116) being powered by a lead screw (117), the other end of the lead screw (117) being rotatably connected to the laying trolley (100), the first motor (116) driving the lead screw (117) to rotate, the laying trolley (100) being slidably connected to a third connecting frame (119) located below the lead screw (117), the upper end face of the third connecting frame (119) being fixedly connected to a threaded block (118), the threaded block (118) being threadedly connected to the lead screw (117), the shaping plate (105) being rotatably connected to the third connecting frame (119), the other side of the shaping plate (105) being rotatably connected to a first swing arm (120), the other end of the first swing arm (120) being rotatably connected to the laying trolley (100).

4. The municipal roadbed drainage ditch laying mechanism according to claim 1, characterized in that: The placement mechanism (106) includes a third motor (135) fixedly connected to the laying trolley (100). A second transmission mechanism (136) is provided on the right side of the third motor (135). The laying trolley (100) is rotatably connected to two worm gears (137). The third motor (135) is used to drive the front worm gear (137) and the second transmission mechanism (136) to rotate. The second transmission mechanism (136) drives the rear worm gear (137) to rotate. The laying trolley (100) is rotatably connected to two drive shafts (139). Each of the drive shafts (139) is fixedly connected to a worm wheel (138) that meshes with the worm (137). Each of the drive shafts (139) is fixedly connected to a second crank (143). The laying trolley (100) is fixedly connected to a plurality of second slide rails (140). The second slide rails (140) are slidably connected to the sliding plate (141). The second crank (143) is rotatably connected to each of the sliding plates (141) by a second swing arm (144). The positions of the two second cranks (143) are adjusted to suitable different angles.

5. The municipal roadbed drainage ditch laying mechanism according to claim 1, characterized in that: The storage rack (108) is provided with a discharge hole (109). When the pallet (112) rotates, the protrusion (121) drives the slot cover (110) to move out of the discharge hole (109).

6. The municipal roadbed drainage ditch laying mechanism according to claim 1, characterized in that: The double-crank mechanism (111) includes a first connecting plate (129) and a second connecting plate (134). The first connecting plate (129) and the second connecting plate (134) are fixedly connected by multiple fixed shafts (130). Both the first connecting plate (129) and the second connecting plate (134) are rotatably connected to two first cranks (128). One of the first cranks (128) in the first connecting plate (129) is rotatably connected to a transmission arm (131). (131) A spur gear (132) is rotatably connected to the other end. The spur gear (132) meshes with the support plate (112) and the second connecting plate (134). The spur gear (132) and the support plate (112) are both fixedly connected with sliders (133). The sliders (133) are slidably connected to the second connecting plate (134). Each of the first cranks (128) is fixedly connected with a rotating shaft (127). The other end of the rotating shaft (127) is fixedly connected to the laying trolley (100).

7. A municipal roadbed drainage ditch laying mechanism according to claim 6, characterized in that: The laying trolley (100) is fixedly connected to a side plate (122) located on the right side of the pallet (112). The side plate (122) is fixedly connected to a second motor (123). A first transmission mechanism (125) is provided between the side plate (122) and the first connecting plate (129). The first transmission mechanism (125) is connected to the rotating shaft (127). The second motor (123) drives the first transmission mechanism (125) to rotate and simultaneously drives the two rotating shafts (127) to rotate.

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