A special handling vehicle
By designing specialized handling vehicles and employing components such as forklifts and guide wheels, precise docking of coffins and cremation beds was achieved, solving the problem that existing equipment could not simultaneously meet the requirements of handling and docking, thus improving handling efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO RUYI JOINT CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-09
AI Technical Summary
Existing coffin handling equipment cannot simultaneously meet the needs of coffin handling and cremation bed docking, resulting in low efficiency and the need for manual assistance, which poses a risk of damage to the coffin due to improper operation.
Design a special transport vehicle equipped with a first forklift and a second forklift. Through the cooperation of lifting and lateral movement components, the coffin is precisely docked with the cremation bed. The limit plate and guide wheel ensure stability, the locking component prevents slippage, and the drive wheel set provides mobility.
This method achieves precise docking between the coffin and the cremation bed, improving handling efficiency, reducing manual intervention, preventing damage to the coffin, and enhancing the stability and safety of the handling process.
Smart Images

Figure CN224331197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of transport vehicles, and specifically to a special transport vehicle. Background Technology
[0002] In the current funeral industry, coffins are usually transported to the crematorium by hearse. However, the coffins in the hearse are usually moved to the cremation bed by hand or by simple trolley. However, manual handling has problems such as high labor intensity and easy damage to the coffin due to improper operation. Therefore, some coffin handling equipment has emerged.
[0003] However, traditional equipment can only move the coffin and cannot meet the dual needs of moving the coffin and connecting it to the cremation bed at the same time. That is, traditional equipment can only move the coffin to a position close to the cremation bed and still requires manual assistance to move it, or it cannot accurately move the coffin to the corresponding position on the cremation bed, which is inefficient. Utility Model Content
[0004] This utility model addresses the aforementioned problems and aims to provide a special transport vehicle that can simultaneously meet the dual needs of coffin transport and cremation bed docking, thereby improving the efficiency of coffin transport.
[0005] To achieve the above objectives, this utility model provides a special transport vehicle for transporting coffins to a cremation bed, comprising:
[0006] The body structure includes a chassis, a drive wheel assembly located below the chassis, and a mast arranged vertically on the chassis;
[0007] The handling mechanism includes:
[0008] The first forklift is used to lift the coffin. It includes two first fork arms symmetrically arranged on both sides of the gantry. Both first fork arms are mounted on the gantry in a lifting manner via a lifting component, and can move independently or synchronously towards or away from each other in the horizontal direction via a lateral movement component.
[0009] A second forklift, used for lifting the cremation bed, is mounted on the chassis and located below the first forklift. The second forklift includes two symmetrically arranged second forks, the front end of each second fork hinged to the chassis via a connecting rod; and two connecting arms, the middle portion of each connecting arm rotatably mounted on the chassis via a pivot to form a fulcrum. The first end of each connecting arm is hinged to the rear end of its corresponding second fork, and the second end of each connecting arm extends upwards to form a drive unit that can contact the descending lifting component.
[0010] When the lifting member descends with the first fork arm to a point where it can contact the second end of the connecting arm, the downward movement of the first fork arm can drive the connecting arm to rotate around a fulcrum via the lifting member, causing the first end of the connecting arm to move upward, thereby driving the rear end of the second fork arm to move upward, so that the second fork arm is raised axially around its front hinge point; wherein...
[0011] When the first fork arm descends to a first preset height, the two first fork arms can move a predetermined distance in a direction opposite to each other via the lateral movement member to release the coffin.
[0012] According to the above-described special handling vehicle, the first fork arm includes a supporting base plate and a limiting plate. The supporting base plate is generally L-shaped, and the limiting plate is connected to the outer side of the supporting base plate and is higher than the inner side of the supporting base plate.
[0013] According to the above-described special handling vehicle, the first fork arm further includes a first guide wheel, the limiting plate and the supporting base plate together form a first groove, a plurality of first guide wheels are arranged at intervals in the first groove along the length direction of the supporting base plate, and the plurality of first guide wheels are rotatably connected to the limiting plate and the supporting base plate through a first rotating shaft.
[0014] According to the above-described special handling vehicle, the first fork arm further includes a locking component, which includes a locking block and a drive unit. The locking block is rotatably disposed in the first groove via a second rotating shaft and is located in the middle of the support base plate. The locking block has a first position where it is retracted in the first groove and a second position where its upper part is extended above the first groove. When the locking block is in the second position, the top height of the locking block is higher than the top height of the first guide wheel.
[0015] The drive unit can drive the locking block to move from a first position to a second position so that the locking block abuts against the bottom of the coffin.
[0016] According to the above-described special transport vehicle, the drive unit includes a locking handle, a first link, a second link, and a third link. One end of the first link is hinged to the limiting plate, and the other end of the first link is connected to one end of the locking handle. One end of the third link is connected to the end of the second rotating shaft, and the other end of the third link is connected to one end of the second link. The end of the second link away from the third link is connected to the middle of the first link.
[0017] According to the above-described special handling vehicle, the second forklift further includes a connecting frame for connecting two second fork arms. The chassis has a first support frame and a second support frame arranged along its length on opposite sides. One end of the connecting rod is hinged to the first support frame, and the other end of the connecting rod is hinged to the front end of the second fork arm. The middle part of the connecting arm is rotatably connected to the second support frame via a pivot.
[0018] According to the above-described special handling vehicle, the second forklift further includes a second guide wheel, and a plurality of the second guide wheels are arranged at intervals along the length direction of the second forklift below the second forklift and located on the inner side of the second forklift.
[0019] According to the above-described special handling vehicle, the lifting component includes a lifting frame and a lifting cylinder. The lifting frame is mounted on the gantry and can be raised and lowered by the lifting cylinder. The bottom of the lifting frame is provided with an abutment portion corresponding to the drive unit.
[0020] According to the above-described special transport vehicle, the lateral movement component includes a guide rail and two electric push rods. The guide rail is arranged horizontally on the lifting frame. The two first fork arms are slidably connected to the guide rail via sliders. One end of each of the two electric push rods is hinged to the lifting frame, and the other end of each of the two electric push rods is respectively hinged to the two first fork arms.
[0021] According to the above-described special transport vehicle, the body structure further includes a control unit, which includes a steering handle and multiple control switches. The steering handle is used to control the drive wheel assembly, and the multiple control switches are respectively used to control the lifting cylinder and the electric push rod.
[0022] This utility model has the following beneficial effects:
[0023] 1. The coffin can be lifted from the hearse by two first forks, and then the vehicle can be moved to the cremation bed by the drive wheel set. Then the second fork is inserted into the bottom of the cremation bed. At this time, the first fork descends and the coffin descends. When the lifting component descends to abut the second end of the connecting arm, the first fork and the lifting component continue to descend and can drive the second fork to rise as a whole through the connecting arm, thereby driving the cremation bed to rise. This synchronous action reduces the distance between the coffin and the cremation bed. When the first fork descends to the first preset height, the coffin is very close to the cremation bed. The two first forks can move in opposite directions to release the coffin. The coffin can be accurately placed on the cremation bed. Thus, the transportation of the coffin and the docking of the coffin with the cremation bed can be achieved by a single vehicle. The docking accuracy between the coffin and the cremation bed is high, and the overall transportation efficiency of the coffin is high.
[0024] 2. The descent of the first fork arm can naturally drive the second fork arm to rise, thus saving a separate power source;
[0025] 3. In the first fork arm, a limiting plate can be used to prevent the coffin from shifting to the side, ensuring the stability of the coffin during movement. In addition, the first guide wheel makes it easier for the first fork arm to be inserted into the bottom of the coffin, making it more convenient to pick up the coffin.
[0026] 4. By rotating the driving locking block, the coffin can be locked in place, preventing it from slipping off the first guide wheel during transport and ensuring its stability.
[0027] 5. The second guide wheel facilitates insertion to the bottom of the cremation bed, making it easier to pick up with a fork. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of the embodiment;
[0029] Figure 2 This is a front view of the overall structure of the embodiment;
[0030] Figure 3 This is a schematic diagram of the first fork arm structure in the embodiment.
[0031] In the picture:
[0032] 100. Body structure; 110. Chassis; 111. First support frame; 112. Second support frame; 120. Drive wheel assembly; 130. Mast; 140. Control unit; 141. Steering handle; 142. Control switch;
[0033] 200. Handling mechanism; 210. First fork lifter; 211. First fork arm; 2111. Support base plate; 2112. Limiting plate; 2113. First guide wheel; 2114. First groove; 2115. Locking component; 2115a. Locking block; 2115b. Second rotating shaft; 2115c. Locking handle; 2115d. First connecting rod; 2115e. Second connecting rod; 2115f. Third connecting rod; 2116. Connecting rod; 220. Second fork lifter; 221. Second fork arm; 222. Connecting arm; 223. Connecting frame; 224. Second guide wheel; 230. Lifting component; 231. Lifting frame; 232. Lifting cylinder; 240. Lateral movement component; 241. Guide rail; 242. Electric push rod. Detailed Implementation
[0034] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0035] like Figure 1-3As shown, a special transport vehicle includes a body structure 100 and a transport mechanism 200. The transport mechanism 200 is mounted on the body structure 100 and can be moved by the body structure 100 to transport the coffin to the cremation bed, thus realizing the integrated completion of coffin transport and coffin docking with the cremation bed.
[0036] The vehicle body mechanism 100 includes a chassis 110, a drive wheel set 120 located below the chassis 110, and a mast 130 arranged vertically on the chassis 110. The chassis 110 can be moved on the ground via the drive wheel set 120, which mainly provides a movable support for the mast 130 and the handling mechanism 200, facilitating handling after the coffin is forked.
[0037] Specifically, the handling mechanism 200 includes a first forklift 210 and a second forklift 220. The first forklift 210 is used to lift the coffin, and the second forklift 220 is used to lift the cremation bed. The second forklift 220 is located below the first forklift 210 so as to place the coffin lifted by the first forklift 210 onto the cremation bed lifted by the second forklift 220.
[0038] The first forklift 210 includes two first fork arms 211 symmetrically arranged on both sides of the gantry 130. Both first fork arms 211 are mounted on the gantry 130 in a height-adjustable manner via a lifting member 230, and can move independently or synchronously towards or away from each other in the horizontal direction via a lateral movement member 240. When the two first fork arms 211 extend into the gap between the hearse and the coffin, the lifting member 230 can drive the two first fork arms 211 to rise, thereby lifting the coffin. The distance between the two first fork arms 211 can be adjusted to accommodate coffins of different sizes. When the distance between the two first fork arms 211 is adjusted to be greater than the width of the coffin, the coffin can be released, allowing it to fall to the corresponding position on the cremation bed.
[0039] The second forklift 220 includes two symmetrically arranged second fork arms 221 and two connecting arms 222. The front end of each second fork arm 221 is hinged to the chassis 110 via a connecting rod 2116. The middle part of each connecting arm 222 is rotatably mounted on the chassis 110 via a pivot to form a fulcrum. The first end of the connecting arm 222 is hinged to the rear end of its corresponding second fork arm 221. The second end of the connecting arm 222 extends upward and forms a driving part that can contact the descending lifting member 230. When the driving part is subjected to a downward driving force, it drives the second end of the connecting arm 222 to descend, causing the connecting arm 222 to rotate around the fulcrum and causing the first end of the connecting arm 222 to rise, thereby driving the second fork arm 221 to rise as a whole, so that the second fork arm 221 picks up the cremation bed and drives the cremation bed to rise.
[0040] In this embodiment, when the lifting member 230 descends with the first fork arm 211 to the point where it can contact the second end of the connecting arm 222, the downward movement of the first fork arm 211 can drive the connecting arm 222 to rotate around the fulcrum through the lifting member 230, causing the first end of the connecting arm 222 to move upward, thereby driving the rear end of the second fork arm 221 to move upward, so that the second fork arm 221 is lifted upward with the hinge point at its front end as the axis. That is, when the coffin descends with the first fork arm 211, it can naturally press down on the second end of the connecting arm 222 by its own gravity, thereby realizing cremation. The lifting of the bed causes the two to move closer to each other, resulting in higher alignment accuracy between the coffin and the cremation bed. This eliminates the need for an additional power source to lift the cremation bed. When the first fork arm 211 descends to the first preset height, the coffin is close enough that it will fall directly onto the cremation bed without damage. At this point, the two first fork arms 211 can move a predetermined distance in opposite directions via the lateral movement member 240 to release the coffin, allowing it to fall precisely into a predetermined position on the cremation bed. This predetermined distance is adjusted in real time according to the width of the coffin.
[0041] Furthermore, the first fork arm 211 includes a support base plate 2111 and a limiting plate 2112. The support base plate 2111 is generally L-shaped. The limiting plate 2112 is connected to the outer side of the support plate and is higher than the inner side of the support base plate 2111. When the coffin is placed on the support base plate 2111, the limiting plate 2112 can restrict the coffin from moving to both sides, thereby preventing the coffin from falling off the outside and improving the stability of transportation.
[0042] Furthermore, the first fork arm 211 also includes a first guide wheel 2113. The limiting plate 2112 and the supporting base plate 2111 together form a first groove 2114. Multiple first guide wheels 2113 are arranged at intervals in the first groove 2114 along the length direction of the supporting base plate 2111. Multiple first guide wheels 2113 are rotatably connected to the limiting plate 2112 and the supporting base plate 2111 through a first rotating shaft. That is, multiple first guide wheels 2113 are rotatably arranged in the first groove 2114. Multiple first guide wheels 2113 on the two first fork arms 211 can guide the coffin, making it easy for the two first fork arms 211 to be inserted into the bottom of the coffin.
[0043] Furthermore, although the first guide wheel 2113 allows the coffin to easily enter the first fork arm 211, the coffin can also easily slip off the first guide wheel 2113 during transportation, i.e., detach from the first fork arm 211, which could easily cause the coffin to fall. Therefore, in this embodiment, the first fork arm 211 also includes a locking member 2115. The locking member 2115 includes a locking block 2115a and a drive unit. The locking block 2115a is rotatably disposed in the first groove 2114 via the second rotating shaft 2115b, and its displacement is in the middle of the support plate. By rotating, different parts of the locking block 2115a can face upwards, thereby realizing position switching and height switching, thus realizing the unlocking and locking of the coffin.
[0044] Specifically, the locking block 2115a has a first position retracted within the first groove 2114 and a second position extended above the first groove 2114. When the locking unit is in the second position, the top height of the locking block 2115a is higher than the top height of the first guide wheel 2113. Therefore, when the locking block 2115a is in the first position, it will not interfere with the coffin, making it easier to fork the coffin. The driving unit can drive the locking block 2115a to freely switch between the first and second positions. When it drives the locking block 2115a to move from the first position to the second position, the top of the locking block 2115a can abut against the bottom of the coffin, thereby locking the coffin and preventing it from moving along the arrangement direction of the first guide wheel 2113, thus preventing the coffin from falling due to rolling and improving the stability of handling.
[0045] Specifically, the drive unit includes a locking handle 2115c, a first connecting rod 2115d, a second connecting rod 2115e, and a third connecting rod 2115f. One end of the first connecting rod 2115d is hinged to the limiting plate 2112, and the other end of the first connecting rod 2115d is connected to one end of the locking handle 2115c. One end of the third connecting rod 2115f is connected to the end of the second rotating shaft 2115b, and the other end of the third connecting rod 2115f is connected to one end of the second connecting rod 2115e. The end of the second connecting rod 2115e away from the third connecting rod 2115f is connected to the middle of the first connecting rod 2115d. In this embodiment... In the example, the initial state of the locking handle 2115c is horizontal. During the process of driving the locking block 2115a to move to the second position, one end of the locking handle 2115c can be pulled upward first. The locking handle 2115c drives the first link 2115d to rotate. The rotation of the first link 2115d drives one end of the second link 2115e to rotate. The second link 2115e drives the third link 2115f to rotate. The second link 2115e then drives the third link 2115f to rotate. The third link 2115f drives the locking block 2115a to rotate through the second rotating shaft 2115b.
[0046] In this embodiment, in order to meet the requirement of the locking block 2115a rotating to switch different heights, the locking block 2115a is required to have a protrusion on at least one side, which is used to connect with the bottom of the coffin.
[0047] Furthermore, the second forklift 220 also includes a connector, the connecting frame 223 for connecting the two second fork arms 221, so that the two second fork arms 221 keep rising and falling synchronously, and a first support frame 111 and a second support frame 112 arranged along their length direction are provided on opposite sides of the chassis 110. One end of the connecting rod 2116 is hinged to the first support frame 111, and the other end of the connecting rod 2116 is hinged to the front end of the second fork arm 221. The middle part of the connecting arm 222 is rotatably connected to the second support frame 112 through a pivot. The first support frame 111 is used to provide rotational support for the front end of the second fork arm 221, and the second support frame 112 is used to provide rotational support for the connecting arm 222.
[0048] Furthermore, the second fork 220 also includes second guide wheels 224. Multiple second guide wheels 224 are arranged at intervals below the second fork 221 along the length direction of the second fork 221 and located on the inner side of the second fork 221. A support part is provided at the lower part of the cremation bed. When the second fork 221 is inserted into the cremation bed, the second guide wheels 224 below the two second forks 221 respectively connect with the two sides of the support part, thereby guiding the insertion of the second fork 221 and ensuring insertion accuracy.
[0049] In this embodiment, after the first fork arm 211 removes the coffin from the hearse, it can be driven by the vehicle body mechanism 100 to move to the cremation bed. The second fork arm 221 is then inserted under the cremation bed. At this time, the second fork arm 221 does not lift the cremation bed. Only when the first fork arm 211 lowers the coffin does the lifting component 230 lift the second fork arm 221. At this time, the second fork arm 221 lifts the cremation bed and raises it. When the coffin is placed on the cremation bed, the first fork arm 211 rises, and the lifting component 230 also rises, slowly releasing the connecting arm 222. The second fork arm 221 is pressed down by the weight of the cremation bed and the coffin, and it will also slowly descend until the second fork arm 221 detaches from the cremation bed. At this point, the entire vehicle can be moved out.
[0050] Furthermore, the lifting component 230 includes a lifting frame 231 and a lifting cylinder 232. The lifting frame 231 is mounted on the gantry 130 in a way that allows it to be raised and lowered via the lifting cylinder 232. The bottom of the lifting frame 231 is provided with an abutment portion corresponding to the drive unit. That is, the lifting cylinder 232 can drive the lifting frame 231 to move up and down on the gantry 130, and drive the transverse component 240 and the two first forks 211 to move up and down synchronously. During the synchronous descent of the lifting frame 231 and the two first forks 211, the abutment portion can press down on the drive unit, thereby driving the connecting arm 222.
[0051] Furthermore, the transverse component 240 includes a guide rail 241 and two electric push rods 242. The guide rail 241 is arranged horizontally on the lifting frame 231. The two first forks 211 are slidably connected to the guide rail 241 via sliders. One end of each of the two electric push rods 242 is hinged to the lifting frame 231, and the other end of each electric push rod is hinged to the two first forks 211 respectively. The two electric push rods 242 can control the movement of the two forks independently, thus enabling the synchronous or independent movement of the two first forks 211. Since the guide rail 241 is fixed on the lifting frame 231, the lifting frame 231 can drive the transverse component 240 and the first forks 211 to perform synchronous lifting and lowering movements.
[0052] Furthermore, in order to achieve overall control of the vehicle, the body structure 100 also includes a control unit 140. The control unit 140 includes a steering handle 141 and multiple control switches 142. The steering handle 141 is used to control the drive wheel assembly 120, which can control the overall driving and steering of the vehicle. The multiple control switches 142 are used to control the lifting cylinder 232 and the electric push rod 242 respectively, controlling whether the lifting cylinder 232 and the electric push rod 242 are started, and controlling their extension or retraction actions.
[0053] In this embodiment, the drive wheel assembly 120 includes two driven wheels located at the front end of the bottom of the chassis 110 and a drive wheel located at the rear end of the chassis 110. The steering handle 141 is also used to control the drive wheel.
[0054] In this embodiment, a special transport vehicle is disclosed, including a body structure 100 and a transport mechanism 200. The body structure 100 includes a chassis 110, a drive wheel assembly 120, and a mast 130 arranged on the chassis 110. The transport mechanism 200 includes a first forklift 210 for lifting a coffin and a second forklift 220 for lifting a cremation bed. The first forklift 210 includes two first fork arms 211 that are liftable and height-adjustable on the mast 130 via a lifting member 230. The second forklift 220 includes two second fork arms 221 and two connecting arms 222. The connecting arms 222 form a cantilever between the rear end of the second fork arms 221 and the lifting member 230. The seesaw structure allows the first fork arm 211 to pick up the coffin and the second fork arm 221 to be inserted into the bottom of the cremation bed. The first fork arm 211 descends with the descending component, causing the coffin to descend as well. During this process, the descending component can drive the second fork arm 221 to rise via the connecting arm 222, thereby raising the cremation bed and achieving natural lifting, saving power and bringing the coffin closer to the cremation bed. When the first fork arm 211 moves to the first preset height, the two first fork arms 211 move in opposite directions to release the coffin, which can then fall onto the cremation bed. The transportation of the coffin and the docking of the coffin with the cremation bed can be achieved by a single vehicle. The docking accuracy between the coffin and the cremation bed is high, and the overall handling efficiency of the coffin is high.
[0055] The technical solution of this utility model has been described in detail above with reference to the accompanying drawings. The described embodiments are used to help understand the concept of this utility model. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0057] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0059] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. A special transport vehicle for transporting coffins to a cremation bed, characterized in that, include: The body structure includes a chassis, a drive wheel assembly located below the chassis, and a mast arranged vertically on the chassis; The handling mechanism includes: The first forklift is used to lift the coffin. It includes two first fork arms symmetrically arranged on both sides of the gantry. Both first fork arms are mounted on the gantry in a lifting manner via a lifting component, and can move independently or synchronously towards or away from each other in the horizontal direction via a lateral movement component. A second forklift, used for lifting the cremation bed, is mounted on the chassis and located below the first forklift. The second forklift includes two symmetrically arranged second forks, the front end of each second fork hinged to the chassis via a connecting rod; and two connecting arms, the middle portion of each connecting arm rotatably mounted on the chassis via a pivot to form a fulcrum. The first end of each connecting arm is hinged to the rear end of its corresponding second fork, and the second end of each connecting arm extends upwards to form a drive unit that can contact the descending lifting component. When the descending member descends with the first fork arm to a point where it can contact the second end of the connecting arm, the downward movement of the first fork arm can drive the connecting arm to rotate around a fulcrum via the lifting member, causing the first end of the connecting arm to move upward, thereby driving the rear end of the second fork arm to move upward, so that the second fork arm is raised axially around its front hinge point; wherein... When the first fork arm descends to a first preset height, the two first fork arms can move a predetermined distance in a direction opposite to each other via the lateral movement member to release the coffin.
2. A special transport vehicle according to claim 1, characterized in that, The first fork arm includes a support base plate and a limiting plate. The support base plate is generally L-shaped. The limiting plate is connected to the outer side of the support base plate and is higher than the inner side of the support base plate.
3. A special transport vehicle according to claim 2, characterized in that, The first fork arm also includes a first guide wheel. The limiting plate and the supporting base plate together form a first groove. A plurality of first guide wheels are arranged at intervals in the first groove along the length direction of the supporting base plate, and the plurality of first guide wheels are rotatably connected to the limiting plate and the supporting base plate through a first rotating shaft.
4. A special transport vehicle according to claim 3, characterized in that, The first fork arm further includes a locking member, which includes a locking block and a drive unit. The locking block is rotatably disposed in the first groove via a second rotating shaft and is located in the middle of the support base plate. The locking block has a first position where it is retracted in the first groove and a second position where its upper part is extended above the first groove. When the locking block is in the second position, the top height of the locking block is higher than the top height of the first guide wheel. The drive unit can drive the locking block to move from a first position to a second position so that the locking block abuts against the bottom of the coffin.
5. A special transport vehicle according to claim 4, characterized in that, The drive unit includes a locking handle, a first link, a second link, and a third link. One end of the first link is hinged to the limiting plate, and the other end of the first link is connected to one end of the locking handle. One end of the third link is connected to the end of the second rotating shaft, and the other end of the third link is connected to one end of the second link. The end of the second link away from the third link is connected to the middle of the first link.
6. A special transport vehicle according to claim 1, characterized in that, The second fork assembly also includes a connecting frame for connecting two second fork arms. The chassis has a first support frame and a second support frame arranged along its length on opposite sides. One end of the connecting rod is hinged to the first support frame, and the other end of the connecting rod is hinged to the front end of the second fork arm. The middle part of the connecting arm is rotatably connected to the second support frame via a pivot.
7. A special transport vehicle according to claim 6, characterized in that, The second fork also includes a second guide wheel, and a plurality of the second guide wheels are arranged at intervals along the length direction of the second fork arm below the second fork arm and located on the inner side of the second fork arm.
8. A special transport vehicle according to claim 1, characterized in that, The lifting component includes a lifting frame and a lifting cylinder. The lifting frame is mounted on the gantry and can be raised and lowered by the lifting cylinder. The bottom of the lifting frame is provided with an abutment part corresponding to the drive unit.
9. A special transport vehicle according to claim 8, characterized in that, The transverse component includes a guide rail and two electric push rods. The guide rail is arranged horizontally on the lifting frame. The two first fork arms are slidably connected to the guide rail via sliders. One end of each of the two electric push rods is hinged to the lifting frame, and the other end of each of the two electric push rods is hinged to the two first fork arms respectively.
10. A special transport vehicle according to claim 9, characterized in that, The vehicle body structure also includes a control unit, which includes a steering handle and multiple control switches. The steering handle is used to control the drive wheel assembly, and the multiple control switches are used to control the lifting cylinder and the electric push rod, respectively.