Safe loading and unloading method and loading and unloading device for municipal pipelines

Abstract

The invention relates to the field of municipal pipeline moving and transporting, and discloses a municipal pipeline safe loading and unloading device which comprises a vehicle body, a crawler belt is installed on the vehicle body, a driving mechanism and a bearing mechanism are installed on the vehicle body, the bearing mechanism is used for receiving and clamping a municipal pipeline, and the axis direction of the municipal pipeline on the bearing mechanism is adjustable. The driving mechanism is used for driving the bearing mechanism to be switched between horizontal arrangement and vertical arrangement, the driving mechanism comprises a bottom frame fixedly arranged on the vehicle body and a top frame located above the bottom frame, the bottom frame and the top frame are connected through a connecting component, and a connecting frame is further hinged to the upper end of the top frame; the bearing mechanism comprises a bearing seat which is slidably installed on the connecting frame in the vehicle length direction of the vehicle body, and when the bearing seat is horizontally arranged, a plurality of sets of rotating components are arranged on the upper end face of the bearing seat in an array mode in the vehicle length direction.

Description

Technical Field

[0001] The present invention relates to the field of municipal construction machinery, in particular to the field of municipal pipeline transportation, and in particular to a municipal pipeline safe loading and unloading method and loading and unloading device. Background Art

[0002] During the construction of municipal pipelines, since the pipelines are heavy, manual transfer is time-consuming and labor-intensive. Therefore, mechanical means are generally used as the main means, supplemented by manual means, to achieve the transfer of pipelines. In the process of municipal pipeline construction, in addition to loading and unloading, there are many other pipeline transfer scenarios, such as unloading pipelines from transport vehicles or loading pipelines onto transport vehicles, orderly arranging chaotically distributed pipelines, hoisting pipelines to achieve pipeline laying, etc. However, in the prior art, corresponding functions are generally achieved through corresponding mechanical equipment, which means that in the construction of municipal pipelines, multiple mechanical equipment need to cooperate with each other to achieve the transfer of pipelines in different scenarios, which is costly. For example, the Chinese invention patent with authorization announcement number CN109051887B discloses a safe slow-down loading and unloading method for cement pipelines, which can only realize the pipeline loading and unloading function. The Chinese invention patent with authorization announcement number CN115892171B discloses a pipeline handling device for municipal engineering construction, which can only realize the pipeline handling function.

[0003] Based on the above, the present invention proposes a municipal pipeline safe loading and unloading method and loading and unloading device with a simple structure, which can assist pipeline transfer in different scenarios. Summary of the invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides a municipal pipeline safe loading and unloading method and loading and unloading device.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A municipal pipeline safety loading and unloading device comprises a vehicle body, a crawler is installed on the vehicle body, a driving mechanism and a supporting mechanism are installed on the vehicle body, the supporting mechanism is used to receive and clamp the municipal pipeline, the axis centerline direction of the municipal pipeline on the supporting mechanism is adjustable, and the driving mechanism is used to drive the supporting mechanism to switch between horizontal arrangement and vertical arrangement;

[0007] The driving mechanism includes a bottom frame fixedly arranged on the vehicle body and a top frame located above the bottom frame, the bottom frame and the top frame are connected by a connecting member, and a connecting frame is hingedly arranged on the upper end of the top frame;

[0008] The supporting mechanism comprises a supporting seat slidably mounted on the connecting frame along the vehicle length direction of the vehicle body. When the supporting seat is arranged horizontally, a plurality of rotating components are arranged in an array on the upper end surface of the supporting seat along the vehicle length direction.

[0009] Furthermore, the connecting component includes a connecting arm, a driving arm 1 and a driving arm 2. One end of the connecting arm is hinged to the base frame, and the other end is hinged to the top frame. Two connecting arms are arranged along the vehicle length direction of the vehicle body. One end of the driving arm 1 is hinged to the base frame, and the other end is hinged to the driving arm 2. A protruding arm extends from the end where the connecting arm is hinged to the base frame. The protruding arm and the connecting arm are arranged at an angle. The end of the driving arm 2 is hinged to the protruding arm.

[0010] Furthermore, the driving mechanism also includes a hydraulic cylinder 1, a hinge shaft formed by hinged connection between the driving arm 1 and the driving arm 2 is movably connected to one end of the hydraulic cylinder 1, and the other end of the hydraulic cylinder 1 is hinged to the base frame.

[0011] Furthermore, two groups of connecting components are provided and are respectively located on both sides of the top frame along the vehicle length direction, and a connecting rod is hingedly provided between the protruding arms on the two connecting arms.

[0012] Furthermore, a protrusion extends downward from the end of the connecting frame, and the driving mechanism also includes a second hydraulic cylinder, one end of the second hydraulic cylinder is hinged to the top frame, and the other end is hinged to the protrusion.

[0013] Furthermore, a synchronous belt group and a hydraulic motor are installed on the connecting frame, and a power connection is formed between the two. The running direction of the synchronous belt group is parallel to the vehicle length direction. The synchronous belt in the synchronous belt group is connected to the supporting seat, and the supporting seat is also provided with a limiting component for limiting the shaking of the municipal pipeline.

[0014] Furthermore, the limiting component includes two groups of limiting components respectively arranged on both sides of the supporting seat along the vehicle length direction, each group of side limiting components is composed of a plurality of groups of side limiting components arrayed along the vehicle length direction, the side limiting components include a side rod hingedly connected to the supporting seat, a V-shaped protruding rod extending from the end of the side rod, a socket is provided on the side rod, and slot one, slot two and slot three are provided on the supporting seat. When the socket is coaxial with the slot, the side rod is vertically arranged and the end of the side rod is located above the supporting seat. When the socket is coaxial with slot two or slot three, the side rod is horizontally arranged, and a pin is provided in the socket.

[0015] Furthermore, the limiting component also includes a rotating shaft arranged on the end of the supporting seat and parallel to the vehicle length direction, and a limiting claw extends vertically from the end of the rotating shaft. Two rotating shafts are arranged along the vehicle width direction, and two limiting claws are correspondingly arranged. Two hydraulic motors for driving the rotating shaft to rotate are installed on the supporting seat.

[0016] Furthermore, the rotating component includes a mounting groove arranged on the upper end surface of the supporting seat, a turntable and a motor driving the turntable to rotate are installed in the mounting groove, and the upper end surface of the turntable is flush with the upper end surface of the supporting seat.

[0017] A loading and unloading method for a municipal pipeline safety loading and unloading device:

[0018] (a) unloading stage;

[0019] Step 1: Once the hydraulic cylinder is started, the top frame is driven to move through the connecting member, and the top frame moves with the supporting mechanism, so that the upper end surface of the supporting seat is flush with the bottom of the carriage of the transport vehicle, and the vehicle body is moved by the crawler towing, so that the supporting seat is close to the carriage of the transport vehicle;

[0020] Step 2: Roll the municipal pipe onto the support seat, and then drive the turntable to rotate through the motor. The turntable rotates with the pipe to adjust the placement of the municipal pipe. There are two ways to place the municipal pipe, namely, the first placement method in which the axis line is parallel to the vehicle length direction and the second placement method in which the axis line is parallel to the vehicle width direction;

[0021] Step 3: Limit the municipal pipeline by limiting the position of the municipal pipeline, and move the vehicle body to the preset position by the crawler;

[0022] Step 4: The connecting frame is deflected by the second hydraulic cylinder, so that the connecting frame and the supporting mechanism are switched to a vertical arrangement, and the synchronous belt group is driven by the first hydraulic motor to run, and the synchronous belt group moves with the supporting seat, so that the bottom of the supporting seat and the pipeline are close to the ground, and the restriction of the limiting component on the municipal pipeline is cancelled. The municipal pipeline in the first arrangement falls vertically to the ground, and the municipal pipeline in the second arrangement falls horizontally to the ground;

[0023] (ii) Loading stage;

[0024] Step 5: Through the cooperation of hydraulic cylinder 1 and hydraulic cylinder 2, the supporting seat is arranged vertically with the bottom close to the ground, the municipal pipeline is placed on the limiting claws arranged at the bottom of the supporting seat, and the municipal pipeline is limited by the limiting component;

[0025] Step six: Through the cooperation of hydraulic cylinder one and hydraulic cylinder two, the supporting seat is arranged horizontally and the upper end surface is flush with the bottom of the transport vehicle compartment. The vehicle body is moved by crawler traction to make the supporting seat close to the transport vehicle, the restriction of the limiting component on the municipal pipeline is removed, and the municipal pipeline is rolled into the transport vehicle compartment.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present application can realize the towing and transfer of municipal pipelines in different scenarios. Specifically, the present application can realize the loading and unloading of municipal pipelines, the transportation and transfer of pipelines in warehouses, and the auxiliary laying of municipal pipelines. In any scenario, the present application can realize the transfer of vertically arranged or horizontally arranged pipelines, for example, towing municipal pipelines vertically into a shaft, or towing municipal pipelines into a horizontally arranged laying trough;

[0028] In addition, in the process of traction and laying of municipal pipelines, the top frame has a movement action, specifically, Figure 3As shown, this movement can make the end of the top frame close to the limiting claw extend out of the vehicle body. Its significance lies in that when laying the pipeline, it is necessary to dig a laying groove on the ground. The closer to the laying groove, the heavier the equipment, and the easier it is for the soil to sink or even collapse. Therefore, in this application, when assisting the laying of municipal pipelines, the end of the top frame close to the limiting claw is extended out of the vehicle body. In this way, in the process of pulling the pipeline into the laying groove, there is a distance between the vehicle body of the device and the laying groove, and the problem of soil depression is not easy to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0030] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0031] Figure 3 The structure of the present invention is schematically shown Figure 3 ;

[0032] Figure 4 The structure of the present invention is schematically shown Figure 4 ;

[0033] Figure 5 The structure of the present invention is schematically shown Figure 5 ;

[0034] Figure 6 The structure of the present invention is schematically shown Figure 6 ;

[0035] Figure 7 The structure of the present invention is schematically shown Figure 7 ;

[0036] Figure 8 is a schematic diagram of a driving mechanism and a supporting mechanism;

[0037] Fig. 9 It is a schematic diagram of a bottom frame, a top frame and connecting components;

[0038] Fig.10 is a schematic diagram of a connecting member and a hydraulic cylinder;

[0039] Fig.11 It is a schematic diagram of the top frame, the connecting frame and the second hydraulic cylinder;

[0040] Fig.12 is a schematic diagram of the supporting mechanism;

[0041] Fig.13 Schematic diagram of the rotating part, motor and limit claw.

[0042] The reference numerals in the accompanying drawings are:

[0043] 100, driving mechanism; 101, bottom frame; 102, top frame; 103, hydraulic cylinder 1; 104, connecting arm; 105, connecting rod; 106, driving arm 1; 107, driving arm 2; 108, hydraulic cylinder 2; 109, connecting frame; 200, supporting mechanism; 201, supporting seat; 202, synchronous belt group; 203, hydraulic motor 1; 204, limiting claw; 205, hydraulic motor 2; 206, side rod; 207, turntable; 208, motor. DETAILED DESCRIPTION

[0044] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0045] Reference Figure 1-Figure 13 A municipal pipeline safety loading and unloading device includes a vehicle body, which is driven by crawler technology to move. It can be realized by existing technology and will not be described in detail.

[0046] A driving mechanism 100 and a supporting mechanism 200 are installed on the vehicle body, wherein the supporting mechanism 200 is used to receive and clamp the municipal pipeline, the axial centerline direction of the municipal pipeline on the supporting mechanism 200 is adjustable, and the driving mechanism 100 is used to drive the supporting mechanism 200 to switch between horizontal arrangement and vertical arrangement.

[0047] 1. Driving mechanism 100:

[0048] Reference Fig. 9 and Fig.10 The driving mechanism 100 includes a bottom frame 101 fixedly disposed on the vehicle body and a top frame 102 located above the bottom frame 101 , and the bottom frame 101 and the top frame 102 are connected via a connecting member.

[0049] The connecting component includes a connecting arm 104 , a driving arm 1 106 and a driving arm 2 107 .

[0050] One end of the connecting arm 104 is hinged to the bottom frame 101, and the other end is hinged to the top frame 102. Two connecting arms 104 are arranged along the vehicle length direction of the vehicle body. When any connecting arm 104 is deflected, the top frame 102 can be driven to move. The movement of the top frame 102 consists of two sub-displacements, namely, the horizontal sub-displacement along the vehicle length direction and the vertical sub-displacement along the vertical direction.

[0051] One end of the driving arm 106 is hinged to the base frame 101, and the other end is hinged to the driving arm 2 107. A protruding arm extends from the end where the connecting arm 104 is hinged to the base frame 101. The protruding arm and the connecting arm 104 are arranged at an angle. The end of the driving arm 2 107 is hinged to the protruding arm.

[0052] Furthermore, in order to make the top frame 102 move more smoothly and stably, two groups of connecting members are provided and are respectively located on both sides of the top frame 102 along the vehicle length direction.

[0053] The driving mechanism 100 also includes a hydraulic cylinder 103, one end of which is hinged to the base frame 101, and the other end is movably connected to an articulated shaft formed by hinges between a driving arm 106 and a driving arm 2 107. Furthermore, the articulation between the driving arm 106 and the driving arm 2 107 in the two groups of connecting components shares an articulated shaft, which is named a connecting shaft, and the other end of the hydraulic cylinder 103 is movably connected to the connecting shaft.

[0054] The connecting shaft can be pushed outward or pulled inward by the hydraulic cylinder 103, both of which can drive the top frame 102 to move. When the top frame 102 moves, the height first rises and then falls, but the directions of the horizontal displacement are opposite.

[0055] Preferred embodiment, refer to Fig.10 A connecting rod 105 is hingedly provided between the convex arms on the two connecting arms 104. Its significance lies in that, if there is no connecting rod 105, then when the hydraulic cylinder 103 drives one connecting arm 104 to actively deflect, the other connecting arm 104 is passively deflected together with the movement of the top frame 102. However, the pipeline is heavy, and this method will cause the actively deflected connecting arm 104 to bear a greater force. On the contrary, if there is a connecting rod 105, then when the hydraulic cylinder 103 drives one connecting arm 104 to actively deflect, the connecting rod 105 will drive the other connecting arm 104 to also actively deflect. The active deflection of the two connecting arms 104 cooperates to move the top frame 102, and the movement is smoother and more stable. It should be noted that, referring to Figure 1 and Figure 3 In the present application, initially, the connecting arm 104 is arranged horizontally. When the present application is put into use, the connecting arm 104 needs to be deflected 180 degrees. Therefore, the shape of the connecting rod 105 needs to be considered not to interfere with the driving arm 106 and the driving arm 2 107. Therefore, it is designed as Fig.10 Shape shown.

[0056] Reference Fig.11 The driving mechanism 100 further includes a connecting frame 109 located above the top frame 102. The connecting frame 109 is hinged to the end of the top frame 102, and a protrusion extends downward from the end of the connecting frame 109.

[0057] The driving mechanism 100 further includes a second hydraulic cylinder 108 , one end of which is hinged to the top frame 102 , and the other end of which is hinged to the cam.

[0058] The second hydraulic cylinder 108 pushes the convex frame outward or pulls the convex frame inward, so that the connecting frame 109 deflects around the hinge axis formed at the hinge between the connecting frame 109 and the top frame 102, such as Figure 4 As shown, the connecting frame 109 is ultimately switched between a vertical arrangement and a horizontal arrangement.

[0059] 2. Supporting institution 200:

[0060] The supporting mechanism 200 is installed on the connecting frame 109 .

[0061] Reference Fig.12 The supporting mechanism 200 includes a supporting seat 201 which is slidably connected to the connecting frame 109. The sliding direction and the extending direction of the supporting seat 201 are parallel to the vehicle length direction. A synchronous belt group 202 and a hydraulic motor 203 are installed on the connecting frame 109, and a power connection is formed between the two. The running direction of the synchronous belt group 202 is parallel to the vehicle length direction. The synchronous belt in the synchronous belt group 202 is connected to the supporting seat 201. The synchronous belt group 202 is driven to run by the hydraulic motor 203, and the supporting seat 201 is pulled to move together by the synchronous belt in the synchronous belt group 202. Preferably, a worm gear is included in the power transmission route between the hydraulic motor 203 and the synchronous belt group 202.

[0062] A group of side limit assemblies are respectively provided on both sides of the supporting seat 201 along the vehicle length direction, and each group of side limit assemblies is composed of several groups of side limit components arranged in an array along the vehicle length direction. Furthermore, the side limit components include a side rod 206 hingedly connected to the supporting seat 201, and a V-shaped protrusion extends from the end of the side rod 206. A socket is provided on the side rod 206, and a slot is provided on the supporting seat 201. There are three slots: slot one, slot two and slot three. When the socket is coaxial with the slot, the side rod 206 is arranged vertically and the end of the side rod 206 is located above the supporting seat 201. When the socket is coaxial with slot two or slot three, the side rod 206 is arranged horizontally. In addition, a pin is provided between the socket and the slot. Through the cooperation of the pin, the socket and the slot, the side rod 206 is limited to the current vertical arrangement or the current horizontal arrangement.

[0063] Reference Fig.12 and Fig.13 A rotating shaft parallel to the vehicle length direction is installed at the end of the supporting seat 201 close to the protrusion, and a limiting claw 204 is vertically extended from the end of the rotating shaft. Two rotating shafts are arranged along the vehicle width direction, and two limiting claws 204 are correspondingly arranged.

[0064] A hydraulic motor 205 is installed on the support seat 201, and a power connection is formed between the hydraulic motor 205 and the two rotating shafts. Preferably, the power transmission route between the hydraulic motor 205 and the rotating shaft includes a worm gear. The rotating shaft is driven to rotate by the hydraulic motor 205, and the rotating shaft will rotate with the limiting claw 204.

[0065] Reference Fig.12 and Fig.13 When the supporting seat 201 is arranged horizontally, a plurality of rotating components are arranged in an array on the upper end surface of the supporting seat 201 along the vehicle length direction. Furthermore, the rotating components include a mounting groove arranged on the upper end surface of the supporting seat 201, a turntable 207 and a motor 208 for driving the turntable 207 to rotate are installed in the mounting groove, and the upper end surface of the turntable 207 is flush with the upper end surface of the supporting seat 201.

[0066] Working principle of the present invention:

[0067] This application can realize the transfer of municipal pipelines in different scenarios, specifically:

[0068] 1. Loading and unloading of municipal pipelines:

[0069] First, the device is pulled close to the transport vehicle by crawler technology, then the hydraulic cylinder 103 is started, and the top frame 102 is driven to move through the connecting member, and the top frame 102 moves with the supporting mechanism 200, so that the upper end surface of the supporting seat 201 is flush with the bottom of the carriage of the transport vehicle, and then the device is pulled to move by crawler technology, so that the supporting seat 201 is close to the carriage of the transport vehicle;

[0070] Then, the municipal pipeline is manually rolled onto the supporting seat 201. The rolling method is more convenient for moving the municipal pipeline and saves effort. Afterwards, the placement of the pipeline is adjusted according to the actual situation, for example Figure 6 Pipe placement in Figure 1 The pipe placement in the pipeline is adjusted by the motor 208 driving the turntable 207 to rotate, and the turntable 207 rotates with the pipe;

[0071] After the pipeline is placed, Figure 1 or Figure 6 , by deflecting the side rod 206, the pipeline is restricted, and the restriction is to prevent the pipeline from shaking when the device moves;

[0072] After the device moves with the pipeline to the preset position, Figure 4 As shown, the connecting frame 109 is deflected by the hydraulic cylinder 108, as shown in FIG. Figure 5 or Figure 7As shown, the connecting frame 109 and the supporting mechanism 200 are finally switched to a vertical arrangement. Then, the hydraulic motor 1 203 drives the synchronous belt group 202 to run, and the synchronous belt group 202 moves with the supporting seat 201, so that the bottom of the supporting seat 201 and the pipeline are close to the ground. Finally, the hydraulic motor 205 drives the rotating shaft to rotate, and the rotating shaft rotates with the limiting claw 204. The limiting claw 204 cancels the support for the pipeline, and the pipeline falls to the ground under the action of gravity. This is the unloading process of the pipeline. It should be noted that at the beginning, the pipeline is Figure 1 As shown, the final pipeline is as follows Figure 5 As shown, the pipeline is unloaded on the ground. Figure 6 As shown, the final pipeline is as follows Figure 7 As shown unloaded on the ground;

[0073] On the contrary, the supporting mechanism 200 is first arranged vertically and the limiting claw 204 is in contact with the ground, and then the pipeline is transferred to the limiting claw 204, and the pipeline is limited by the side rod 206. Finally, with the cooperation of hydraulic cylinder 103 or hydraulic cylinder 2 108, the upper end surface of the supporting seat 201 is made flush with the bottom of the carriage of the transport vehicle and the two are close to each other, and then the restriction of the side rod 206 is cancelled, and the pipeline is rolled to be sent into the carriage of the transport vehicle. This is the installation process of the pipeline.

[0074] 2. According to one, the supporting mechanism 200 can be arranged vertically and the limiting claw 204 can be close to the ground. At this time, the device is equivalent to a forklift, which can transfer the pipes in the warehouse, and can also use the device in this state to pull the pipes and transfer them to the carriage of the transport vehicle.

[0075] 3. Assisting municipal pipeline laying:

[0076] According to one, the device can Figure 5 As shown, the traction pipe is placed vertically into the shaft, and can also be Figure 7 As shown, the traction pipeline is laid horizontally.

[0077] It should be noted that during the auxiliary municipal pipeline laying process, the top frame 102 has a movement action, specifically, Figure 3 As shown, this movement can make the end of the top frame 102 close to the limiting claw 204 extend out of the vehicle body. Its significance lies in that when laying the pipeline, it is necessary to dig a laying groove on the ground. The closer to the laying groove, the heavier the equipment, and the easier it is for the soil to sink or even collapse. Therefore, in this application, when assisting the laying of municipal pipelines, the end of the top frame 102 close to the limiting claw 204 is extended out of the vehicle body. In this way, when pulling the pipeline into the laying groove, there is a distance between the vehicle body of the device and the laying groove, and the problem of soil depression is not easy to occur.

[0078] In this solution, all the hinge axes involved in the hinged connection mode in the driving mechanism 100 and the supporting mechanism 200 are parallel to the vehicle width direction of the vehicle body.

[0079] In this solution, the transfer of municipal pipelines can be achieved in different environments, mainly by mechanical means, supplemented by manual labor, reducing the risk of workers' participation, that is, achieving the purpose of installation and loading and unloading.

[0080] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A municipal pipeline safety loading and unloading device, comprising a vehicle body, on which a crawler track is mounted, characterized in that: A driving mechanism (100) and a supporting mechanism (200) are installed on the vehicle body. The supporting mechanism (200) is used to receive and clamp the municipal pipeline. The axis direction of the municipal pipeline on the supporting mechanism (200) is adjustable. The driving mechanism (100) is used to drive the supporting mechanism (200) to switch between a horizontal arrangement and a vertical arrangement. The driving mechanism (100) comprises a bottom frame (101) fixedly arranged on a vehicle body and a top frame (102) located above the bottom frame (101); the bottom frame (101) and the top frame (102) are connected via a connecting member; and a connecting frame (109) is hingedly arranged at the upper end of the top frame (102); The supporting mechanism (200) comprises a supporting seat (201) slidably mounted on a connecting frame (109) along the vehicle length direction of the vehicle body. When the supporting seat (201) is arranged horizontally, a plurality of groups of rotating components are arranged in an array on the upper end surface of the supporting seat (201) along the vehicle length direction.

2. A municipal pipeline safety loading and unloading device according to claim 1, characterized in that: The connecting component comprises a connecting arm (104), a driving arm 1 (106) and a driving arm 2 (107); one end of the connecting arm (104) is hinged to the bottom frame (101), and the other end is hinged to the top frame (102); two connecting arms (104) are arranged along the vehicle length direction of the vehicle body; one end of the driving arm 1 (106) is hinged to the bottom frame (101), and the other end is hinged to the driving arm 2 (107); a convex arm extends from the end where the connecting arm (104) is hinged to the bottom frame (101); the convex arm and the connecting arm (104) form an angle arrangement; the end of the driving arm 2 (107) is hinged to the convex arm.

3. A municipal pipeline safety loading and unloading device according to claim 2, characterized in that: The driving mechanism (100) further comprises a hydraulic cylinder 1 (103), a hinge shaft formed by hinged connection between the driving arm 1 (106) and the driving arm 2 (107) and one end of the hydraulic cylinder 1 (103) being movably connected, and the other end of the hydraulic cylinder 1 (103) being hinged to the base frame (101).

4. A municipal pipeline safety loading and unloading device according to claim 3, characterized in that: Two groups of connecting components are provided and are respectively located on both sides of the top frame (102) along the vehicle length direction, and a connecting rod (105) is hingedly provided between the protruding arms on the two connecting arms (104).

5. A municipal pipeline safety loading and unloading device according to claim 3, characterized in that: A convex frame extends downward from the end of the connecting frame (109), and the driving mechanism (100) further comprises a second hydraulic cylinder (108), one end of the second hydraulic cylinder (108) is hinged to the top frame (102), and the other end is hinged to the convex frame.

6. A municipal pipeline safety loading and unloading device according to claim 5, characterized in that: A synchronous belt group (202) and a hydraulic motor (203) are installed on the connecting frame (109) and a power connection is formed between the two. The running direction of the synchronous belt group (202) is parallel to the vehicle length direction. The synchronous belt in the synchronous belt group (202) is connected to the supporting seat (201). The supporting seat (201) is also provided with a limiting component for limiting the shaking of the municipal pipeline.

7. A municipal pipeline safety loading and unloading device according to claim 6, characterized in that: The limiting component comprises two groups of limiting components respectively arranged on both sides of the supporting seat (201) along the vehicle length direction, each group of side limiting components is composed of a plurality of groups of side limiting components arranged in an array along the vehicle length direction, the side limiting components comprising a side rod (206) hingedly connected to the supporting seat (201), a V-shaped protruding rod extending from the end of the side rod (206), a plug hole is provided on the side rod (206), and a slot 1, a slot 2 and a slot 3 are provided on the supporting seat (201), when the plug hole is coaxial with the slot, the side rod (206) is arranged vertically and the end of the side rod (206) is located above the supporting seat (201), when the plug hole is coaxial with the slot 2 or the slot 3, the side rod (206) is arranged horizontally, and a latch is provided in the plug hole.

8. A municipal pipeline safety loading and unloading device according to claim 7, characterized in that: The limiting component also includes a rotating shaft arranged on the end of the supporting seat (201) and parallel to the vehicle length direction, a limiting claw (204) extending vertically from the end of the rotating shaft, two rotating shafts are arranged along the vehicle width direction, and two limiting claws (204) are correspondingly arranged, and two hydraulic motors (205) for driving the rotating shaft to rotate are installed on the supporting seat (201).

9. A municipal pipeline safety loading and unloading device according to claim 6, characterized in that: The rotating component comprises a mounting groove arranged on the upper end surface of the supporting seat (201), a rotating disk (207) and a motor (208) for driving the rotating disk (207) to rotate are mounted in the mounting groove, and the upper end surface of the rotating disk (207) is flush with the upper end surface of the supporting seat (201).

10. A method for loading and unloading a municipal pipeline safety loading and unloading device according to claim 9, characterized in that: It includes the following steps: (a) unloading stage; Step 1: The hydraulic cylinder 1 (103) is started, and the top frame (102) is driven to move through the connecting member, and the top frame (102) moves with the supporting mechanism (200), so that the upper end surface of the supporting seat (201) is flush with the bottom of the carriage of the transport vehicle, and the vehicle body is moved by the crawler towing, so that the supporting seat (201) is close to the carriage of the transport vehicle; Step 2: Roll the municipal pipeline onto the supporting seat (201), and then drive the turntable (207) to rotate through the motor (208), so that the turntable (207) rotates with the pipeline to adjust the placement of the municipal pipeline. There are two placement methods of the municipal pipeline, namely, placement method 1 in which the axis line is parallel to the vehicle length direction and placement method 2 in which the axis line is parallel to the vehicle width direction; Step 3: Limit the municipal pipeline by limiting the position of the municipal pipeline, and move the vehicle body to the preset position by the crawler; Step 4: The connecting frame (109) is driven to deflect by the hydraulic cylinder 2 (108), so that the connecting frame (109) and the supporting mechanism (200) are switched to a vertical arrangement, and the synchronous belt group (202) is driven to operate by the hydraulic motor 1 (203), and the synchronous belt group (202) moves with the supporting seat (201), so that the bottom of the supporting seat (201) and the pipeline are close to the ground, and the restriction of the limiting component on the municipal pipeline is cancelled. The municipal pipeline in the first arrangement falls vertically to the ground, and the municipal pipeline in the second arrangement falls horizontally to the ground; (ii) Loading stage; Step 5: by cooperating with the hydraulic cylinder 1 (103) and the hydraulic cylinder 2 (108), the supporting seat (201) is arranged vertically with the bottom close to the ground, the municipal pipeline is placed on the limiting claw (204) arranged at the bottom of the supporting seat (201), and the municipal pipeline is limited by the limiting component; Step 6: Through the cooperation of hydraulic cylinder 1 (103) and hydraulic cylinder 2 (108), the supporting seat (201) is arranged horizontally and the upper end surface is flush with the bottom of the transport vehicle compartment. The vehicle body is moved by crawler traction to make the supporting seat (201) close to the transport vehicle, and the restriction of the limiting component on the municipal pipeline is removed, and the municipal pipeline is rolled into the transport vehicle compartment.

Images