CN211567777U

CN211567777U - Dangerous goods transport vehicle convenient to change jar body

Info

Publication number: CN211567777U
Application number: CN201922414413.5U
Authority: CN
Inventors: 李明春
Original assignee: Shanghai Jinxuan International Logistics Co ltd
Current assignee: Shanghai Jinxuan International Logistics Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-25
Anticipated expiration: 2029-12-25

Abstract

The utility model belongs to the technical field of the commodity circulation transport vechicle technique and specifically relates to a dangerous goods transport vechicle convenient to change jar body is related to, including automobile body and the wheel of setting on the automobile body and the cargo bed of setting on the automobile body, cargo bed is used for placing braced frame, braced frame is used for placing the jar body, braced frame and cargo bed can dismantle the connection, be provided with on the cargo bed and be used for carrying out the hoisting device who promotes to braced frame, hoisting device includes the mount, the mounting bracket with be used for carrying out the promotion subassembly that promotes to braced frame, the mount sets up on cargo bed, the mounting bracket sets up on the mount, the promotion subassembly sets up on the mounting. Through being provided with hoisting device on carrying cargo the platform, braced frame and the connection of carrying cargo the platform can be dismantled, with braced frame and carry cargo to open between the platform, then carry out braced frame through hoisting device and promote, change after promoting, can realize the automatic change to the jar body, simple operation, artifical intensity of labour are lower.

Description

Dangerous goods transport vehicle convenient to change jar body

Technical Field

The utility model belongs to the technical field of the commodity circulation transport vechicle technique and specifically relates to a hazardous articles transport vechicle convenient to change jar body is related to.

Background

The transportation of the dangerous goods is one of special transportation at present, mean that special organization or technical personnel use the transport vehicle of the dangerous goods to transport to the unconventional goods, the transport vehicle transporting the dangerous goods is usually divided into flat plate transport vehicle and tank type transport vehicle, the flat plate transport vehicle is used for shipping the non-liquid dangerous goods; the tank body of the tank type transport vehicle is fixedly connected with the transport vehicle, and can not be detached, so that the dangerous goods transport vehicle convenient for replacing the tank body is generally used for effectively transporting liquid dangerous goods.

The existing Chinese patent with publication number CN208360031U discloses a tank body replacement structure for a hazardous chemical substance transport vehicle, which comprises a cargo carrying platform and a fixed frame, wherein when the cargo carrying platform works and needs to transport non-liquid hazardous chemical substances, the fixed frame is not arranged on the cargo carrying platform, and the cargo carrying platform is a transport platform for the non-liquid hazardous chemical substances; when liquid danger article need be transported, the mount that will be equipped with the jar body is placed on cargo platform, and the grafting post of mount bottom inserts and holds the intracavity, and the mounting hole cover is established on fastening post, and the back-shore stick of packing into in the accommodation hole after that, and the back-shore stick extrudes the extruded article for the clamp plate supports tightly in the second annular.

The above prior art solutions have the following drawbacks: this a jar body change structure for danger article transport vechicle can carry out effectual change to the jar body, but when changing the jar body, need operate equipment such as lifting machine and the lift truck of peripheral hardware through the manual work, change the jar body, and the operation is not convenient, artifical intensity of labour is big, consequently, needs improve it.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exist, one of the purposes of the utility model is to provide a hazardous articles transport vechicle convenient to change jar body, it is through being provided with hoisting device on carrying cargo the platform, and braced frame can dismantle the connection with carrying cargo the platform, with braced frame and carry cargo and open between the platform, then carries out braced frame through hoisting device and promotes, changes after promoting, can realize the automatic change to the jar body, and simple operation, artifical intensity of labour are lower.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a hazardous articles transport vechicle convenient to change jar body, includes the automobile body and sets up the wheel on the automobile body and set up the cargo bed on the automobile body, cargo bed is used for placing braced frame, braced frame is used for placing the jar body, braced frame and cargo bed can dismantle the connection, cargo bed is last to be provided with and to be used for carrying out the hoisting device who promotes to braced frame, hoisting device includes mount, mounting bracket and is used for carrying out the promotion subassembly that promotes to braced frame, the mount sets up on cargo bed, the mounting bracket sets up on the mount, the promotion subassembly sets up on the mounting bracket.

Through adopting above-mentioned technical scheme, carry out fixed mounting to mounting bracket and hoisting component through the mount, when needing to change the jar body, start the hoisting component and promote the jar body to drive braced frame and move subaerially, can realize the change to the jar body, simple operation, artifical intensity of labour are lower.

The present invention may be further configured in a preferred embodiment as: the mount is fixed to be set up on the cargo bed, in the mount was worn to locate by the bottom of mounting bracket, and mounting bracket and mount normal running fit, the fixed drive arrangement that is provided with on the mount, in drive arrangement's output shaft was worn to locate the mount, drive arrangement's output shaft and mounting bracket fixed connection, and drive arrangement's output shaft and mount normal running fit.

Through adopting above-mentioned technical scheme, fixed drive arrangement that is provided with on the mount, start drive arrangement, drive arrangement can drive the mount at the mount internal rotation, drives braced frame simultaneously and moves to one side of carrying cargo bed, makes braced frame no longer be in the vertical direction of carrying cargo bed, can realize moving braced frame subaerially from carrying cargo bed, carries out the change of the jar body, simple operation, artifical low in labor strength.

The present invention may be further configured in a preferred embodiment as: the lifting assembly comprises a first driving motor, a winding disc and a lifting rope, the first driving motor and the winding disc are fixedly arranged on the mounting frame, an output shaft of the first driving motor is fixedly connected with the winding disc, the lifting rope is wound on the winding disc, and the lifting rope is used for lifting the supporting frame.

Through adopting above-mentioned technical scheme, start driving motor one, drive the rolling dish and rotate, carry out the ascending promotion of vertical side with lifting rope 633, drive braced frame and move, move braced frame subaerially from carrying cargo bed, can realize the convenient change to the jar body.

The present invention may be further configured in a preferred embodiment as: lifting hooks are fixedly arranged on the lifting ropes, and lifting rings corresponding to the lifting hooks are fixedly arranged on the supporting frame.

Through adopting above-mentioned technical scheme, fixed lifting hook that is provided with on the lifting rope, through the setting of lifting hook and rings, make the lifting rope can and support frame between realize swift being connected, it is more convenient to operate when promoting support frame, when dismantling simultaneously between with lifting rope and the support frame, only need with the lifting hook follow rings in take out can.

The present invention may be further configured in a preferred embodiment as: the support frame is fixedly provided with a connecting column, the goods carrying table is provided with a mounting hole matched with the connecting column, and the mounting hole is used for placing the connecting column.

Through adopting above-mentioned technical scheme, the fixed spliced pole that is provided with on braced frame, carry and offer on the goods platform with spliced pole assorted mounting hole, insert the spliced pole the mounting hole and can make braced frame and carry out fixed mounting between the goods platform, make braced frame and carry the fixed mounting between the goods platform more convenient with the dismantlement.

The present invention may be further configured in a preferred embodiment as: the locking hole has been seted up on the spliced pole, the inside fixed locking mechanism that is used for locking the spliced pole that is provided with of cargo bed, and locking mechanism wears to locate in the locking hole.

Through adopting above-mentioned technical scheme, make braced frame install more firm in carrying cargo bed, avoid the automobile body transportation in-process, when the automobile body traveles and produces the vibration on the road of unevenness, make braced frame and carry and take place relative motion between the cargo bed, make the spliced pole slide from the mounting hole, lead to the damage of transported substance.

The present invention may be further configured in a preferred embodiment as: the locking mechanism comprises a locking rod for locking the connecting column and a driving assembly for driving the locking rod to move, and the locking rod is in sliding fit with the locking hole.

By adopting the technical scheme, after the connecting column is inserted into the mounting hole, the driving assembly is started due to the sliding fit of the locking rod and the locking hole, and the driving assembly drives the locking rod to move into the locking hole to lock the connecting column.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a second driving motor, a worm and a worm wheel, the second driving motor is fixedly arranged on the goods carrying platform, an output shaft of the second driving motor is arranged on the goods carrying platform in a penetrating mode, the output shaft of the second driving motor is matched with the goods carrying platform in a rotating mode, the worm is coaxially fixed on the output shaft of the second driving motor, the worm wheel is arranged on the worm and meshed with the worm wheel, a rotating rod is arranged in the worm wheel in a penetrating mode, a first bevel gear is sleeved on the rotating rod, a second bevel gear is arranged on the first bevel gear and meshed with the first bevel gear in a two-phase mode, a two-way screw is arranged in the second bevel gear in a penetrating mode, a sliding block is sleeved on the two-way screw, the two-way screw is connected.

Through adopting above-mentioned technical scheme, start driving motor two, drive the worm and rotate, drive the worm wheel and rotate, the worm wheel drives the dwang and rotates, and when the dwang rotated, drive bevel gear one and rotate, drive bevel gear two and rotate, drive two-way screw rod and rotate, can drive the sliding block and slide on two-way screw rod to can drive the check lock lever and be close to the ascending motion in check lock hole direction each other, can realize inserting check lock lever in check lock hole, the simple operation.

The present invention may be further configured in a preferred embodiment as: the goods carrying platform is provided with a sliding groove, the sliding block is embedded in the sliding groove, and the sliding block is in sliding fit with the sliding groove.

Through adopting above-mentioned technical scheme, seted up the spout on the cargo bed, through inlaying the sliding block in the spout, when making the sliding block move on two-way screw rod, can carry out effectual sliding motion, make the sliding motion of sliding block more stable simultaneously.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the lifting device is arranged on the cargo carrying platform, the supporting frame is detachably connected with the cargo carrying platform, the supporting frame and the cargo carrying platform are opened, then the supporting frame is lifted through the lifting device, and the tank body can be automatically replaced after being lifted, so that the operation is convenient and fast, and the manual labor intensity is low;

2. the driving device is fixedly arranged on the fixing frame, and is started, so that the driving device can drive the mounting frame to rotate in the fixing frame, and simultaneously drive the supporting frame to move to one side of the cargo carrying table, the supporting frame is not in the vertical direction of the cargo carrying table any more, the supporting frame can be moved to the ground from the cargo carrying table, the tank body can be replaced, the operation is convenient, and the manual labor intensity is low;

3. through wearing to locate locking mechanism in the locking hole, make braced frame install more firm in carrying cargo bed, avoid the automobile body transportation in-process, when the automobile body traveles and produces the vibration on the road of unevenness, make braced frame and carry cargo bed between take place relative motion, make the spliced pole slide from the mounting hole, lead to the damage of transported substance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view showing a connection relationship of a support frame and a tank body;

fig. 4 is a schematic structural view showing the connection relationship of the cargo bed and the locking mechanism.

Reference numerals: 1. a vehicle body; 2. a wheel; 3. a cargo carrying platform; 31. mounting holes; 32. a chute; 4. a support frame; 41. a hoisting ring; 42. connecting columns; 421. a locking hole; 5. a tank body; 6. a lifting device; 61. a fixed mount; 611. a drive device; 62. a mounting frame; 63. a lifting assembly; 631. driving a motor I; 632. a winding disc; 633. a lift cord; 634. a hook; 635. a battery pack; 7. a locking mechanism; 71. a locking lever; 72. a drive assembly; 721. a second driving motor; 722. a worm; 723. a worm gear; 724. rotating the rod; 725. a first bevel gear; 726. a second bevel gear; 727. a bidirectional screw; 728. a slider; 729. and (4) supporting the base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a hazardous articles transport vechicle convenient to change jar body, including automobile body 1 and wheel 2 and the loading platform 3 of setting on automobile body 1, loading platform 3 is used for placing braced frame 4, and braced frame 4 is used for placing jar body 5, and braced frame 4 and loading platform 3 can be dismantled the connection, are provided with the hoisting device 6 that is used for promoting braced frame 4 on the loading platform 3. When the dangerous goods transport vehicle is required to be used and non-liquid dangerous goods are transported, the transported goods can be directly placed on the goods carrying platform 3 and transported through the motion of the vehicle body 1 and the wheels 2; the jar body 5 is fixed to be set up in braced frame 4, and when transporting liquid hazardous articles, promote braced frame 4 to carry cargo bed 3 through hoisting device 6 on, transport, when needing to change jar body 5, promote braced frame 4 subaerial through hoisting device 6, can realize the change to jar body 5, simple operation, artifical intensity of labour are lower.

Referring to fig. 1 and 2, the lifting device 6 includes a fixing frame 61, a mounting frame 62, and a lifting assembly 63 for lifting the supporting frame 4, wherein the fixing frame 61 is disposed on the cargo bed 3, the mounting frame 62 is disposed on the fixing frame 61, and the lifting assembly 63 is disposed on the mounting frame 62. Carry out fixed mounting to mounting bracket 62 and lifting unit 63 through the mount, when needing to change jar body 5, start lifting unit 63 and promote jar body 5, then change jar body 5.

Referring to fig. 3 and 4, in order to facilitate the fixed mounting and dismounting between the supporting frame 4 and the cargo carrying platform 3, a connecting column 42 is fixedly arranged on the supporting frame 4, a mounting hole 31 matched with the connecting column 42 is formed in the cargo carrying platform 3, and the mounting hole 31 is used for placing the connecting column 42. The insertion of the connecting column 42 into the mounting hole 31 enables the fixed mounting between the support frame 4 and the cargo bed 3. In order to install braced frame 4 more firmly in carrying cargo bed 3, avoid the transportation of automobile body 1, when automobile body 1 traveles and produces the vibration on the road of unevenness, make braced frame 4 and carry cargo bed 3 between take place relative motion, make spliced pole 42 slide from mounting hole 31, lead to the damage of transportation article, locking hole 421 has been seted up on spliced pole 42, the inside of carrying cargo bed 3 is fixed to be provided with and is used for the locking mechanism 7 to spliced pole 42 locking, and locking mechanism 7 wears to locate in locking hole 421. By inserting the locking mechanism 7 into the locking hole 421, the connection between the supporting frame 4 and the cargo bed 3 can be more stable.

Referring to fig. 3 and 4, the locking mechanism 7 includes a locking lever 71 for locking the connecting column 42 and a driving assembly 72 for driving the locking lever 71 to move, and the locking lever 71 is slidably engaged with the locking hole 421. After the connecting column 42 is inserted into the mounting hole 31, the driving assembly 72 is started, and the driving assembly 72 drives the locking rod 71 to move into the locking hole 421, so that the connecting column 42 is locked.

Referring to fig. 3 and 4, the driving assembly 72 includes a second driving motor 721, a worm 722 and a worm wheel 723, the second driving motor 721 is fixedly disposed on the cargo carrying platform 3, an output shaft of the second driving motor 721 is disposed on the cargo carrying platform 3 in a penetrating manner, a storage battery for supplying power to the second driving motor 721 is disposed on the cargo carrying platform 3, the storage battery is electrically connected to the second driving motor 721, the output shaft of the second driving motor 721 is in rotating fit with the cargo carrying platform 3, the worm 722 is coaxially fixed on the output shaft of the second driving motor 721, the worm wheel 723 is disposed on the worm 722, the worm wheel 723 is meshed with the worm 722, and a rotating rod 724 is disposed in the worm wheel 723 in a penetrating manner. When the locking rod 71 needs to be driven to move into the locking hole 421 to lock the connecting column 42, the second driving motor 721 is started to drive the worm 722 to rotate, and the worm wheel 723 is driven to rotate. The rotating rod 724 is sleeved with a supporting seat 729 for supporting the rotating rod 724, and the worm wheel 723 drives the rotating rod 724 to rotate in the supporting seat 729. The rotating rod 724 is sleeved with a first bevel gear 725, the first bevel gear 725 is provided with a second bevel gear 726, the first bevel gear 725 is meshed with the second bevel gear 726, a bidirectional screw 727 penetrates through the second bevel gear 726, a sliding block 728 is sleeved on the bidirectional screw 727, the bidirectional screw 727 is in threaded connection with the sliding block 728, and the locking rod 71 is fixedly arranged on the sliding block 728. When the rotating rod 724 rotates, the first bevel gear 725 is driven to rotate, the second bevel gear 726 is driven to rotate, the two-way screw 727 is driven to rotate, threads at two ends of the two-way screw 727 are reverse threads, and when the two-way screw 727 rotates, the sliding block 728 can be driven to slide on the two-way screw 727, so that the locking rod 71 can be driven to move in the direction close to the locking hole 421, and the second driving motor 721 is closed after the locking rod 71 is inserted into the locking hole 421.

Referring to fig. 4, the cargo bed 3 is provided with a chute 32, a sliding block 728 is embedded in the chute 32, and the sliding block 728 is in sliding fit with the chute 32. Through the setting of spout 32, when making sliding block 728 slide on two-way screw 727, can slide in spout 32 simultaneously to make the locking motion of sliding block 728 more effective, stable. After the support frame 4 is installed, the tank body 5 is transported through the vehicle body 1.

Referring to fig. 1 and 2, the lifting assembly 63 includes a first driving motor 631, a winding disc 632 and a lifting rope 633, the first driving motor 631 and the winding disc 632 are both fixedly disposed on the mounting bracket 62, an output shaft of the first driving motor 631 is fixedly connected with the winding disc 632, the lifting rope 633 is wound on the winding disc 632, and the lifting rope 633 is used for lifting the support frame 4. The first driving motor 631 is started to drive the winding disc 632 to rotate, so as to lift the lifting rope 633. A hook 634 is fixedly arranged on the lifting rope 633, and a lifting ring 41 corresponding to the hook 634 is fixedly arranged on the supporting frame 4. Referring to fig. 3 and 4, when the tank 5 needs to be replaced, the second driving motor 721 is first started, so that the second driving motor 721 rotates in the direction opposite to the locking motion, and the locking rods 71 along the length direction of the vehicle body 1 move in the direction of approaching each other, slide out of the locking holes 421, and do not lock the connecting column 42. Then, the hook 634 is inserted into the hanging ring 41, the first driving motor 631 is started to drive the winding disc 632 to rotate, the lifting rope 633 is lifted in the vertical direction, the supporting frame 4 is lifted to a certain height, and then the first driving motor 631 is turned off.

Referring to fig. 1 and 2, the fixing frame 61 is fixedly disposed on the cargo carrying platform 3, the bottom end of the mounting frame 62 penetrates through the fixing frame 61, the mounting frame 62 is rotatably matched with the fixing frame 61, the fixing frame 61 is fixedly provided with a driving device 611, and the driving device 611 can be directly formed by a motor. An output shaft of the driving device 611 penetrates through the fixing frame 61, the output shaft of the driving device 611 is fixedly connected with the mounting frame 62, and the output shaft of the driving device 611 is in rotating fit with the fixing frame 61. The mounting frame 62 is fixedly provided with a storage battery 635 used for providing electric energy for the driving device 611, after the supporting frame 4 is lifted by a certain height, the driving device 611 is started, the driving device 611 can drive the mounting frame 62 to rotate in the mounting frame 61, and meanwhile, the supporting frame 4 is driven to move towards one side of the cargo carrying table 3, so that the supporting frame 4 is no longer in the vertical direction of the cargo carrying table 3, then the driving device 611 is closed, meanwhile, the first driving motor 631 is started, the supporting frame 4 is placed on the ground, the tank body 5 is replaced, and non-liquid dangerous goods are transported. When the liquid dangerous goods need to be transported, the supporting frame 4 is mounted on the cargo bed 3 and fixed in the same manner as described above, and the liquid dangerous goods are transported through the vehicle body 1.

The implementation principle of the embodiment is as follows: when the dangerous goods transport vehicle is used, for transporting non-liquid dangerous goods, the transported goods can be directly placed on the goods carrying table 3 and transported through the motion of the vehicle body 1 and the wheels 2; when the liquid dangerous goods are transported, the supporting frame 4 is lifted to the goods carrying platform 3 through the lifting device 6, and the supporting frame 4 and the goods carrying platform 3 are fixed through the locking mechanism 7 for transportation. When the tank body 5 needs to be replaced, the second driving motor 721 is started to drive the worm 722 to rotate and the worm wheel 723 to rotate, the rotating rod 724 is driven to rotate in the supporting seat 729, the first bevel gear 725 is driven to rotate when the rotating rod 724 rotates, the second bevel gear 726 is driven to rotate, the bidirectional screw 727 is driven to rotate, the sliding block 728 can be driven to slide on the bidirectional screw 727, the locking rod 71 can be driven to move in the direction away from the locking hole 421, and the second driving motor 721 is closed after the locking rod 71 is away from the locking hole 421. Then, the hook 634 is inserted into the hanging ring 41, the first driving motor 631 is started to drive the winding disc 632 to rotate, the lifting rope 633 is lifted in the vertical direction, the supporting frame 4 is lifted to a certain height, and then the first driving motor 631 is turned off. And starting the driving device 611, wherein the driving device 611 can drive the mounting frame 62 to rotate in the fixing frame 61, and simultaneously drives the supporting frame 4 to move towards one side of the cargo carrying table 3, so that the supporting frame 4 is no longer in the vertical direction of the cargo carrying table 3, then closing the driving device 611, and simultaneously starting the first driving motor 631, placing the supporting frame 4 on the ground, completing the replacement of the tank body 5, and transporting the non-liquid dangerous goods.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A dangerous goods transport vehicle convenient for replacing a tank body, which comprises a vehicle body (1), wheels (2) arranged on the vehicle body (1) and a cargo carrying platform (3) arranged on the vehicle body (1), characterized in that the cargo platform (3) is used for placing a supporting frame (4), the supporting frame (4) is used for placing a tank body (5), the supporting frame (4) is detachably connected with the cargo carrying platform (3), a lifting device (6) used for lifting the supporting frame (4) is arranged on the cargo carrying platform (3), the lifting device (6) comprises a fixed frame (61), a mounting frame (62) and a lifting component (63) for lifting the supporting frame (4), the fixing frame (61) is arranged on the cargo carrying platform (3), the mounting frame (62) is arranged on the fixing frame (61), and the lifting assembly (63) is arranged on the mounting frame (62).

2. The hazardous material transport vehicle convenient for tank replacement is characterized in that the fixing frame (61) is fixedly arranged on the cargo carrying platform (3), the bottom end of the mounting frame (62) penetrates through the fixing frame (61), the mounting frame (62) is in running fit with the fixing frame (61), the fixing frame (61) is fixedly provided with a driving device (611), the output shaft of the driving device (611) penetrates through the fixing frame (61), the output shaft of the driving device (611) is fixedly connected with the mounting frame (62), and the output shaft of the driving device (611) is in running fit with the fixing frame (61).

3. The hazardous material transport vehicle convenient for tank replacement is characterized in that the lifting assembly (63) comprises a first driving motor (631), a winding disc (632) and a lifting rope (633), the first driving motor (631) and the winding disc (632) are both fixedly arranged on the mounting frame (62), an output shaft of the first driving motor (631) is fixedly connected with the winding disc (632), the lifting rope (633) is wound on the winding disc (632), and the lifting rope (633) is used for lifting the support frame (4).

4. A vehicle for transporting dangerous goods to facilitate the exchange of tank bodies according to claim 3, wherein said lifting rope (633) is fixedly provided with a hook (634), and said supporting frame (4) is fixedly provided with a hanging ring (41) corresponding to the hook (634).

5. The hazardous material transport vehicle convenient for tank body replacement according to claim 4, wherein a connecting column (42) is fixedly arranged on the supporting frame (4), a mounting hole (31) matched with the connecting column (42) is formed in the cargo carrying platform (3), and the mounting hole (31) is used for placing the connecting column (42).

6. The hazardous material transport vehicle convenient to replace a tank body is characterized in that a locking hole (421) is formed in the connecting column (42), a locking mechanism (7) used for locking the connecting column (42) is fixedly arranged in the cargo carrying platform (3), and the locking mechanism (7) penetrates through the locking hole (421).

7. The hazardous transport vehicle convenient for tank replacement of claim 6, wherein the locking mechanism (7) comprises a locking rod (71) for locking the connecting column (42) and a driving assembly (72) for driving the locking rod (71) to move, and the locking rod (71) is in sliding fit with the locking hole (421).

8. The hazardous material transport vehicle convenient for tank replacement as claimed in claim 7, wherein the driving assembly (72) comprises a second driving motor (721), a worm (722) and a worm gear (723), the second driving motor (721) is fixedly arranged on the cargo carrying platform (3), an output shaft of the second driving motor (721) penetrates through the cargo carrying platform (3), an output shaft of the second driving motor (721) is in running fit with the cargo carrying platform (3), the worm (722) is coaxially fixed on the output shaft of the second driving motor (721), the worm gear (723) is arranged on the worm (722), the worm gear (723) is meshed with the worm (722), a rotating rod (724) penetrates through the worm gear (723), a first bevel gear (725) is sleeved on the rotating rod (724), a second bevel gear (726) is arranged on the first bevel gear (725), and the first bevel gear (725) is meshed with the second bevel gear (726), two-way screw rods (727) penetrate through the bevel gear II (726), sliding blocks (728) are sleeved on the two-way screw rods (727), the two-way screw rods (727) are in threaded connection with the sliding blocks (728), and the locking rods (71) are fixedly arranged on the sliding blocks (728).

9. The vehicle for transporting dangerous goods convenient for replacing tank bodies as claimed in claim 8, wherein said cargo bed (3) is provided with a chute (32), said sliding block (728) is embedded in the chute (32), and the sliding block (728) is in sliding fit with the chute (32).