Business vehicle seat mounting structure

Abstract

The application relates to a business vehicle seat mounting structure which comprises two connecting plates at the bottom of a seat body, a bottom groove corresponding to the connecting plates is fixedly connected to the bottom plate, and a blocking plate is fixedly connected to the upper surface of the bottom groove at both ends; two fixed plates are arranged below the connecting plates, a sleeve is arranged between the two fixed plates, the fixed plate is slidably connected with the sleeve, the fixed plate can slide along the height direction of the sleeve and can also slide along the length direction of the connecting plate; a connecting spring is fixedly connected to the fixed plate, the upper end of the connecting spring is fixed to the top of the sleeve; a driving assembly for driving the two fixed plates to move is arranged in the bottom groove; a pressing assembly for driving the fixed plate to move upwards to abut against the blocking plate is also arranged in the bottom groove; a pin hole is arranged in the blocking plate close to the vehicle head, a fixed hole corresponding to the pin hole is also arranged in the fixed plate close to the vehicle head, and a fixed pin is jointly inserted into the pin hole and the fixed hole. The application has the effect of improving the mounting efficiency of the business vehicle seat.

Description

Technical Field

[0001] This application relates to the field of in-vehicle seat mounting structures, and more particularly to a commercial vehicle seat mounting structure. Background Technology

[0002] When installing seats in a commercial vehicle, the operator needs to use a robotic arm to move the seat to a suitable position inside the vehicle. Then, the operator controls the robotic arm to release the seat, fine-tune its position, and align the two connecting plates on the seat with their corresponding positions. Next, the operator reaches into the vehicle through the front door to adjust the position of the connecting plates, aligning the bolt holes on the front end of the connecting plates with the corresponding bolt holes on the ground. Bolts are then used to pre-fix the front end of the connecting plates to the ground. The operator then reaches into the vehicle through the rear door to adjust the position of the connecting plates again, aligning the bolt holes on the rear end of the connecting plates with the corresponding bolt holes on the ground. Bolts are then used to pre-fix the rear end of the connecting plates to the ground. Once both ends of the connecting plates are pre-fixed, the operator reaches into the vehicle again through the front door to tighten the bolts on the front end of the connecting plates. Finally, the operator reaches into the vehicle through the rear door to tighten the bolts on the rear end of the connecting plates.

[0003] Because installing seats requires operators to align bolt holes multiple times and adjust the position of the connecting plate, and operators need to change their standing position multiple times, the installation of seats in commercial vehicles is complicated and inefficient. Summary of the Invention

[0004] To improve the installation efficiency of commercial vehicle seats, this application provides a commercial vehicle seat installation structure.

[0005] This application provides a commercial vehicle seat mounting structure, which adopts the following technical solution: A commercial vehicle seat installation structure includes two connecting plates at the bottom of the seat body. The two connecting plates are arranged along the width direction of the seat body, and the length of the connecting plates is set along the length direction of the vehicle body. A bottom groove corresponding to each connecting plate is fixedly connected to the bottom plate. The length direction of the bottom groove is consistent with the length direction of the connecting plate. Both ends of the bottom groove are sealed. Both ends of the upper surface of the bottom groove are fixedly connected to the sealing plate. Below the connecting plate are two horizontally arranged fixing plates. The two fixing plates are arranged along the length of the connecting plate. The thickness of the fixing plates is less than the depth of the bottom groove. A sleeve is provided between the two fixing plates. The sleeve is vertically fixed to the middle of the lower surface of the connecting plate. The fixing plates are slidably connected to the sleeve, so that the fixing plates can slide along the height of the sleeve and also along the length of the connecting plate. A connecting spring is fixedly connected to the fixed plate. The extension and retraction direction of the connecting spring is set along the length direction of the sleeve. The upper end of the connecting spring is fixed to the top of the sleeve. The connecting spring limits the fixed plate so that the fixed plate is located at the bottom of the sleeve. The bottom groove is equipped with a drive assembly that drives the two fixed plates to move away from each other. The bottom groove is also provided with a clamping component that drives the fixing plate to move upward and abut against the sealing plate; A pin hole is provided on the sealing plate near the front of the vehicle, and a fixing hole corresponding to the pin hole is also provided on the fixing plate near the front of the vehicle. A fixing pin is inserted into both the pin hole and the fixing hole.

[0006] Optionally, a rectangular cross-section connecting rod is slidably inserted into one side of each of the two fixed plates that are close to each other. The connecting rod is horizontally arranged and its length direction is along the length direction of the connecting plate. A hole adapted to the connecting rod is opened on the side wall of the fixed plate near the sleeve. Each connecting rod is slidably inserted into the hole of the corresponding fixed plate. The connecting rod and the fixed plate cooperate to enable the fixed plate to slide along the length direction of the connecting plate. A T-shaped connecting block is fixedly connected to one end of the connecting rod near the sleeve. A connecting groove corresponding to the connecting block is opened on the side wall of the sleeve. The length direction of the connecting groove is set along the length direction of the sleeve. Each connecting block is slidably inserted into the corresponding connecting groove. The connecting block and the connecting groove cooperate to enable the connecting rod and the fixing plate to move along the length direction of the sleeve.

[0007] Optionally, the drive assembly includes a positioning rod that is vertically fixedly connected to the middle of the bottom wall of the bottom groove, and the positioning rod is adapted to the sleeve; The positioning rod has driving plates on both sides that are perpendicular to the bottom wall of the bottom groove. The positioning rod is located between the two driving plates. The driving plates are slidably connected to the bottom groove, and the sliding direction of the driving plates is set along the length direction of the bottom groove. The top of the driving plate is provided with a plug hole for inserting the corresponding connecting rod. The length direction of the plug hole is set along the height direction of the driving plate. Two positioning rods are slidably sleeved with driving collars. The driving collars are coaxial with the positioning rods. A support spring is fixedly connected to the lower end face of the driving collar. The lower end of the support spring is fixedly connected to the inner bottom wall of the bottom groove. The support spring limits the driving collar so that the driving collar is located at the top of the positioning rod. The lower end face of the drive collar is hinged with drive rods corresponding to the drive plates. The length direction of the drive rods is set along the length direction of the bottom groove. The ends of the two drive rods away from the drive collar are downward and inclined in a direction away from each other. The ends of the drive rods away from the drive collar are hinged to the bottom of the corresponding drive plates. The support spring cooperates with the drive rods so that the distance between the side walls of the two drive plates that are away from each other is b1, and the distance between the side walls of the two fixed plates that are close to each other is b2, where b1 is less than b2.

[0008] Optionally, the inner bottom wall of the bottom groove is fixedly connected with slide rails that correspond one-to-one with the drive plate. The length direction of the slide rail is set along the length direction of the bottom groove. The longitudinal section of the slide rail is T-shaped. The drive plate is provided with mating holes that are adapted to the slide rails. Each slide rail is inserted into the corresponding mating hole.

[0009] Optionally, the clamping assembly includes a horizontally arranged clamping plate, the length of which is extendable and retractable, the length direction of which is set along the length direction of the bottom groove, and the clamping plate is elastic. When the clamping plate is not subjected to external force, the length of the clamping plate is greater than the length of the fixed plate. The bottom groove is provided with a partition plate perpendicular to the bottom wall of the bottom groove. The two partition plates are located at the two side edges of the bottom groove, and the two abutting plates are located between the two partition plates. Each abutting plate is slidably connected to the corresponding partition plate and slides along the height direction of the partition plate. A limit spring is fixedly connected to the fixed end of the abutment plate. The upper end of the limit spring is fixed to the sealing plate. The limit spring limits the abutment plate so that the abutment plate is located at the bottom of the bottom groove. The distance between the upper surface of the abutment plate and the sealing plate is greater than the thickness of the fixed plate. The telescopic end of the abutment plate is hinged with an abutment rod. The end of the abutment rod away from the abutment plate faces downward and is inclined toward the corresponding partition. The end of the abutment rod away from the abutment plate is hinged to the inner bottom wall of the bottom groove.

[0010] Optionally, the abutment plate includes a sleeve plate, the opening of which is away from the corresponding partition plate. A plug plate adapted to the sleeve plate is slidably inserted into one side of the sleeve opening. An abutment spring is fixedly connected to the inner bottom wall of the sleeve plate. The end of the abutment spring away from the inner bottom wall of the sleeve is fixedly connected to the side wall corresponding to the plug plate. An abutment rod is hinged to the lower surface of the plug plate near the abutment spring. A through hole for the abutment rod to move is provided on the lower surface of the sleeve plate.

[0011] Optionally, a T-shaped sliding block is fixedly connected to the side wall of the sleeve plate near the partition plate. The partition plate has sliding holes adapted to the sliding blocks. The length direction of the sliding holes is set along the height direction of the partition plate. Each sliding block is slidably inserted into the corresponding sliding hole, and the sliding block part is located on the side of the partition plate away from the sleeve plate. The limiting spring is located on the side of the partition plate away from the sleeve plate, and the lower end of the limiting spring is fixedly connected to the upper surface of the sliding block.

[0012] Optionally, a guide rod is slidably inserted into the sliding block, the guide rod is vertically fixed to the inner bottom wall of the tank, and the upper end of the guide rod is fixedly connected to the lower surface of the sealing plate.

[0013] Optionally, a rubber plate is fixedly connected to the upper surface of the sealing plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects: By setting up the seat body, connecting plate, bottom groove, sealing plate, fixing plate, sleeve, connecting spring, drive assembly, clamping assembly, fixing pin, fixing hole and pin hole, most of the operation of fixing the seat body can be completed at the same time as the seat body is lowered during the installation of the seat. Finally, only the pin needs to be knocked out to complete the fixing of the seat body. There is no need for the operator to align the bolt hole position and adjust the position of the connecting plate multiple times, and there is no need for the operator to change the standing position multiple times. This simplifies the installation process of the seat and improves the installation efficiency of commercial vehicle seats. By setting a positioning rod, a drive plate, a plug hole, a drive collar, a support spring, and a drive rod, the positioning rod cooperates with the sleeve to align the fixing plate with the bottom groove. When the seat body is lowered, the fixing plate can automatically move into place without the operator having to manually move the fixing plate. By setting up a retractable and elastic abutment plate, partition, limit spring, and abutment rod, the abutment plate can automatically push the fixing plate upward while the seat is lowered, and the fixing plate will abut against the sealing plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the overall structure of the seat body and the mounting structure in an embodiment of this application.

[0016] Figure 2 This is a cross-sectional view illustrating the internal structure of the connecting plate and the bottom groove when they are engaged, according to an embodiment of this application.

[0017] Figure 3 This is a cross-sectional view illustrating a portion of the structure of the driving component in an embodiment of this application.

[0018] Figure 4 This is a cross-sectional view illustrating the positional relationship between the abutment plate and the fixing plate when the connecting plate and the bottom groove are engaged, according to an embodiment of this application.

[0019] Figure 5 This is a cross-sectional view illustrating the connection relationship between the connecting rod and the sleeve in an embodiment of this application.

[0020] Figure 6 This is a cross-sectional view illustrating the clamping plate structure in an embodiment of this application.

[0021] Figure 7 This is a cross-sectional view illustrating the connection relationship between the sliding block and the guide rod in an embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Seat body; 2. Connecting plate; 3. Bottom groove; 31. Seating plate; 311. Pin hole; 32. Partition plate; 321. Sliding hole; 4. Sleeve; 41. Connecting groove; 5. Fixing plate; 51. Connecting rod; 52. Connecting block; 53. Connecting spring; 54. Fixing hole; 55. Rubber plate; 6. Fixing pin; 7. Drive assembly; 71. Positioning rod; 72. Drive plate; 721. Mating hole; 722. Insertion hole; 73. Slide rail; 74. Drive rod; 75. Drive collar; 76. Support spring; 8. Clamping assembly; 81. Clamping plate; 811. Sleeve plate; 812. Insertion plate; 813. Limiting spring; 82. Sliding block; 83. Clamping spring; 84. Guide rod; 85. Clamping rod. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0024] This application discloses a commercial vehicle seat installation structure. It includes two connecting plates 2 positioned below the seat body 1, the connecting plates 2 being horizontally arranged and aligned along the width direction of the vehicle body. The length directions of both the seat body 1 and the connecting plates 2 are aligned along the length direction of the vehicle body. A corresponding groove 3 is fixedly connected to the floor inside the vehicle, with the length of the groove 3 matching the length of the connecting plate 2. A sealing plate 31 is fixedly connected to the top of each end of the groove 3, and the sealing plate 31 is horizontally arranged.

[0025] A sleeve 4 perpendicular to the connecting plate 2 is fixedly connected to the middle of the lower surface of the connecting plate 2. Horizontal fixing plates 5 are provided on both sides of the sleeve 4. The sleeve 4 is located between the two fixing plates 5. The length direction and arrangement direction of the two fixing plates 5 are both set along the length direction of the connecting plate 2, and the thickness of the fixing plates 5 is less than the depth of the bottom groove 3. A connecting rod 51 with a rectangular longitudinal cross section is provided on the side of the fixing plate 5 near the sleeve 4. The length direction of the connecting rod 51 is consistent with the length direction of the connecting plate 2. A hole adapted to the connecting rod 51 is opened on the side of the connecting plate 2 near the sleeve 4. The connecting rod 51 is slidably inserted into the corresponding hole. The connecting rod 51 cooperates with the fixing plate 5, so that the fixing plate 5 can slide along the length direction of the connecting plate 2.

[0026] A T-shaped connecting block 52 is fixedly connected to one end of the connecting rod 51 near the sleeve 4. A connecting groove 41 corresponding to the connecting block 52 is opened on the side wall of the sleeve 4. The length direction of the connecting groove 41 is set along the length direction of the sleeve 4. Each connecting block 52 is slidably inserted into the corresponding connecting groove 41. The connecting block 52 cooperates with the connecting groove 41, so that the fixing plate 5 can slide along the length direction of the sleeve 4. A connecting spring 53 is fixedly connected to the upper surface of the connecting block 52. The upper end of the connecting spring 53 is fixedly connected to the top groove wall of the corresponding connecting groove 41. The connecting spring 53 limits the connecting block 52, the connecting rod 51 and the fixing plate 5, so that the fixing plate 5, the connecting rod 51 and the connecting block 52 are all located at the bottom of the sleeve 4. A pin hole 311 is opened on the sealing plate 31 near the front of the vehicle. A fixing hole 54 corresponding to the pin hole 311 is also opened on the fixing plate 5 near the front of the vehicle. A fixing pin 6 is inserted into the pin hole 311 and the fixing hole 54.

[0027] A drive assembly 7 is provided in the bottom groove 3 to drive two fixed plates 5 to move away from each other. The drive assembly 7 includes a positioning rod 71 fixedly connected to the bottom wall of the bottom groove 3. The positioning rod 71 is adapted to the sleeve 4 and is located in the middle of the bottom groove 3. The upper surface of the sealing plate 31 is higher than the upper end face of the positioning rod 71. Two drive plates 72 are slidably connected in the bottom groove 3. The sliding direction of the drive plates 72 is set along the length direction of the bottom groove 3. The drive plates 72 are perpendicular to the inner bottom wall of the bottom groove 3. The positioning rod 71 is located between the two drive plates 72. A slide rail 73 corresponding to the drive plates 72 is fixedly connected to the inner bottom wall of the bottom groove 3. The longitudinal section of the slide rail 73 is T-shaped. The length direction of the slide rail 73 is set along the length direction of the bottom groove 3. The drive plate 72 is provided with a mating hole 721 adapted to the slide rail 73. Each slide rail 73 is inserted into the corresponding mating hole. The slide rail 73 and the mating hole 721 are mated to make the drive plate 72 slidably connected to the bottom groove 3.

[0028] The drive plate 72 is also provided with a insertion hole 722 for the connecting rod 51 to be inserted and moved. The length direction of the insertion hole 722 is set along the height direction of the drive plate 72, and the top of the insertion hole 722 penetrates through the upper surface of the drive plate 72. The bottom of the side walls of the two drive plates 72 that are close to each other are hinged with drive rods 74. The ends of the two drive rods 74 away from the drive plate 72 are both upward and inclined towards the positioning rod 71. A drive collar 75 is slidably sleeved on the positioning rod 71. The drive collar 75 is set horizontally and is coaxial with the positioning rod 71. The ends of the two drive rods 74 away from the drive plate 72 are both hinged to the lower end face of the drive collar 75.

[0029] A support spring 76 is also fixedly connected to the lower end face of the drive collar 75. The support spring 76 is sleeved on the positioning rod 71, and the lower end of the support spring 76 is fixedly connected to the inner bottom wall of the bottom groove 3. The support spring 76 supports the drive collar 75, so that the drive collar 75 is located at the top of the positioning rod 71. The support spring 76, the drive collar 75 and the drive rod 74 cooperate to make the distance between the side walls of the two drive plates 72 that are far apart from each other b1, and the distance between the side walls of the two fixed plates 5 that are close to each other b2, where b1 is less than b2.

[0030] The bottom groove 3 is also provided with a clamping assembly 8, which moves the fixing plate 5 upward to abut against the sealing plate 31. The clamping assembly 8 includes two clamping plates 81 disposed in the bottom groove 3. The clamping plates 81 are horizontally disposed, and the two clamping plates 81 are located at opposite ends of the bottom groove 3. The clamping plates 81 are slidably connected to the bottom groove 3, and the sliding direction of the clamping plates 81 is set along the width direction of the bottom groove 3. The clamping plate 81 includes a sleeve plate 811. The openings of the two sleeve plates 811 are close to each other. A plug-in plate 812 is slidably inserted into one side of the opening of the sleeve plate 811. Several limiting springs 813 are fixedly connected to the inner bottom wall of the sleeve plate 811. The end of the limiting spring 813 away from the inner bottom wall of the sleeve plate 811 is fixedly connected to the side wall corresponding to the plug-in plate 812. The sleeve plate 811, the limiting springs 813 and the plug-in plate 812 cooperate to make the length of the clamping plate 81 extendable and elastic.

[0031] A partition 32 perpendicular to the bottom wall of the bottom groove 3 is provided on one side of the abutment plate 81. Both abutment plates 81 are located between the two partitions 32, and each partition 32 is close to the groove wall at the corresponding end of the bottom groove 3. A T-shaped sliding block 82 is fixedly connected to the side wall of the sleeve plate 811 near the abutment plate 81. The partition plate 32 has sliding holes 321 that correspond one-to-one with the sliding blocks 82. The length direction of the sliding holes 321 is set along the depth direction of the bottom groove 3. The sliding blocks 82 are inserted into the corresponding sliding holes 321, and the protruding part of the sliding blocks 82 is located on the side of the partition plate 32 away from the sleeve plate 811. A retaining spring 83 is fixedly connected to the upper surface of the sliding block 82. The upper end of the retaining spring 83 is fixedly connected to the lower surface of the corresponding sealing plate 31. The retaining spring 83 limits the sliding block 82 and the abutment plate 81, so that the abutment plate 81 is located at the bottom of the bottom groove 3.

[0032] To support the clamping spring 83, a guide rod 84 is inserted into the clamping spring 83. The guide rod 84 passes through the corresponding sliding block 82 and is slidably inserted into the sliding block 82. The upper end of the guide rod 84 is fixedly connected to the lower surface of the sealing plate 31, and the lower end of the guide rod 84 is fixedly connected to the inner bottom wall of the bottom groove 3. A clamping rod 85 is hinged to the side of the lower surface of the insertion plate 812 near the sliding block 82. The end of the clamping rod 85 away from the insertion plate 812 is downward and inclined towards the partition plate 32. The lower end of the clamping rod 85 is hinged to the inner bottom wall of the bottom groove 3.

[0033] When the seat needs to be installed, the operator aligns both sleeves 4 with the corresponding positioning rods 71, and then delivers the seat body 1 downwards, causing the connecting plate 2, sleeves 4, and base plate to move downwards. When the sleeves 4 are fitted onto the corresponding positioning rods 71, the positioning plate moves into the bottom groove 3, and the upper surface of the positioning plate is lower than the lower surface of the sealing plate 31. At this time, both drive plates 72 are located between the two fixed plates 5, and the connecting rod 51 is inserted into the insertion hole 722 of the drive plate 72. When the lower end face of the sleeve 4 contacts the upper end face of the drive head collar, as the seat body 1, connecting plate 2, and fixed plate 5 move downwards, the sleeve 4 pushes the upper end of the drive collar 75 and drive rod 74 downwards, and compresses the support spring 76.

[0034] As the upper end of the drive rod 74 moves downward, the lower ends of the two drive rods 74 rotate in a direction away from each other. The lower end of the drive rod 74 pushes the corresponding drive plate 72 to move, and the drive plate 72 pushes the corresponding fixed plate 5 to move, causing the fixed plate 5 to move closer to the corresponding partition 32. When the fixed plate 5 moves directly above the abutment plate 81, the drive plate 72 contacts both the fixed plate 5 and the plug-in plate 812. As the drive plate 72 continues to move, it pushes the fixed plate 5 to continue moving closer to the partition 32, and at the same time pushes the plug-in plate 812 to move closer to the partition 32, and also compresses the limit spring 813. The movement of the plug-in plate 812 causes one end of the abutment rod 85 to move closer to the partition 32, causing the end of the abutment rod 85 near the plug-in plate 812 to rotate upward.

[0035] While the clamping rod 85 rotates, it also pushes the plug plate 812, sleeve plate 811 and fixing plate 5 to move upward. The upward movement of plug plate 812 and sleeve plate 811 causes the sliding block 82 to move upward and compresses the clamping spring 83. The fixing plate 5 drives the connecting rod 51 and connecting block 52 to move upward at the same time and compresses the connecting spring 53. When the support spring 76 is compressed to its limit, the drive collar 75 and sleeve 4 move into place, and the clamping plate 81 and fixing plate 5 also move into place. The lower surface of the connecting plate 2 contacts and fits against the upper surface of the sealing plate 31. The fixing plate 5 contacts the end plate, and the fixing hole 54 aligns with the pin hole 311. At this time, the drive plate 72, drive rod 74 and clamping plate 81 cooperate to make the fixing plate 5 abut against the corresponding sealing plate 31. In order to make the cooperation effect between the fixing plate 5 and the sealing plate 31 better, a layer of rubber plate 55 is fixedly connected to the upper surface of the fixing plate 5.

[0036] Finally, the operator hammers a fixing pin 6 into the fixing hole 54 and the corresponding pin hole 311. The fixing pin 6 cooperates with the fixing hole 54 and the pin hole 311 to fix the fixing plate 5 and the sealing plate 31, so that the fixing plate 5, the abutment plate 81 and the sealing plate 31 are in contact, thus completing the installation of the seat. Through the above operation, when installing the seat, the operator only needs to align the sleeve 4 and the positioning rod 71 and lower the seat body 1 to complete most of the operation of fixing the seat body 1. Finally, only the pin needs to be hammered out to complete the fixing of the seat body 1. The operator does not need to align the bolt hole positions and adjust the position of the connecting plate 2 multiple times, nor does the operator need to change the standing position multiple times, thus simplifying the installation steps of the seat and improving the installation efficiency of the commercial vehicle seat.

[0037] The implementation principle of the commercial vehicle seat installation structure in this application embodiment is as follows: When installing the seat, the operator uses a robotic arm to transfer the seat body 1 to the installation position in the vehicle compartment, and aligns both sleeves 4 with the corresponding positioning rods 71. Then, the seat body 1 is lowered. At the same time as the seat body 1 is lowered, the sleeves 4 cooperate with the drive collar 75 and the drive rod 74 to push the corresponding fixing plates 5 to move, so that the two fixing plates 5 move away from each other. When the drive plate 72 contacts the abutment plate 81, the drive plate 72 continues to push the fixing plate 5. The movement also compresses the length of the abutment plate 81. During this process, the abutment rod 85 cooperates with the abutment plate 81, causing the abutment plate 81 to push the fixing plate 5 upward. When the connecting plate 2 moves to contact the sealing plate 31, the seat body 1 moves into place. At this time, the abutment plate 81 cooperates with the abutment rod 85, causing the fixing plate 5 to abut against the sealing plate 31, and the fixing hole 54 cooperates with the pin hole 311. Finally, the operator hammers a fixing pin 6 into each pin hole 311, so that the fixing pin 6 is simultaneously inserted into the pin hole 311 and the corresponding fixing hole 54.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seat mounting structure for a commercial vehicle, characterized in that: Includes two connecting plates (2) at the bottom of the seat body (1), the two connecting plates (2) are arranged along the width direction of the seat body (1), the length of the connecting plates (2) is set along the length direction of the vehicle body, and the bottom plate is fixedly connected with bottom grooves (3) corresponding to the connecting plates (2), the length direction of the bottom grooves (3) is consistent with the length direction of the connecting plates (2), both ends of the bottom grooves (3) are sealed, and both ends of the upper surface of the bottom grooves (3) are fixedly connected with sealing plates (31); Below the connecting plate (2) are two horizontally arranged fixing plates (5). The two fixing plates (5) are arranged along the length direction of the connecting plate (2). The thickness of the fixing plates (5) is less than the depth of the bottom groove (3). A sleeve (4) is provided between the two fixing plates (5). The sleeve (4) is vertically fixedly connected to the middle of the lower surface of the connecting plate (2). The fixing plates (5) and the sleeve (4) are slidably connected, so that the fixing plates (5) can slide along the height direction of the sleeve (4) and also slide along the length direction of the connecting plate (2). A connecting spring (53) is fixedly connected to the fixed plate (5). The extension and retraction direction of the connecting spring (53) is set along the length direction of the sleeve (4). The upper end of the connecting spring (53) is fixed to the top of the sleeve (4). The connecting spring (53) limits the fixed plate (5) so that the fixed plate (5) is located at the bottom of the sleeve (4). The bottom groove (3) is provided with a drive assembly (7) that drives the two fixed plates (5) to move in a direction away from each other. The bottom groove (3) is also provided with a clamping component (8) that drives the fixing plate (5) to move upward to abut against the sealing plate (31). A pin hole (311) is provided on the sealing plate (31) near the front of the vehicle, and a fixing hole (54) corresponding to the pin hole (311) is also provided on the fixing plate (5) near the front of the vehicle. A fixing pin (6) is inserted into both the pin hole (311) and the fixing hole (54).

2. The commercial vehicle seat installation structure according to claim 1, characterized in that: On the side of each of the two fixed plates (5) that are close to each other, there is a connecting rod (51) with a rectangular cross section. The connecting rod (51) is set horizontally and its length direction is set along the length direction of the connecting plate (2). The side wall of the fixed plate (5) near the sleeve (4) has a hole that matches the connecting rod (51). Each connecting rod (51) is slidably inserted into the hole of the corresponding fixed plate (5). The connecting rod (51) cooperates with the fixed plate (5) so that the fixed plate (5) can slide along the length direction of the connecting plate (2). The connecting rod (51) is fixedly connected to a T-shaped connecting block (52) at one end near the sleeve (4). The side wall of the sleeve (4) is provided with connecting grooves (41) corresponding to the connecting blocks (52). The length direction of the connecting grooves (41) is set along the length direction of the sleeve (4). Each connecting block (52) is slidably inserted into the corresponding connecting groove (41). The connecting block (52) cooperates with the connecting groove (41) so that the connecting rod (51) and the fixing plate (5) can move along the length direction of the sleeve (4).

3. The commercial vehicle seat installation structure according to claim 2, characterized in that: The drive assembly (7) includes a positioning rod (71) that is vertically fixed to the middle of the bottom wall of the bottom groove (3), and the positioning rod (71) is adapted to the sleeve (4); The positioning rod (71) has driving plates (72) perpendicular to the bottom wall of the bottom groove (3) on both sides. The positioning rod (71) is located between the two driving plates (72). The driving plates (72) are slidably connected to the bottom groove (3), and the sliding direction of the driving plates (72) is set along the length direction of the bottom groove (3). The top of the driving plate (72) is provided with a plug hole (722) for inserting the corresponding connecting rod (51). The length direction of the plug hole (722) is set along the height direction of the driving plate (72). Two positioning rods (71) are slidably sleeved with driving collars (75). The driving collars (75) are coaxial with the positioning rods (71). A support spring (76) is fixedly connected to the lower end face of the driving collars (75). The lower end of the support spring (76) is fixedly connected to the inner bottom wall of the bottom groove (3). The support spring (76) limits the driving collars (75) so that the driving collars (75) are located at the top of the positioning rods (71). The lower end face of the drive collar (75) is hinged with drive rods (74) corresponding to the drive plates (72). The length direction of the drive rods (74) is set along the length direction of the bottom groove (3). The ends of the two drive rods (74) away from the drive collar (75) are downward and inclined in a direction away from each other. The ends of the drive rods (74) away from the drive collar (75) are hinged to the bottom of the corresponding drive plates (72). The support spring (76) cooperates with the drive rods (74) so ​​that the distance between the side walls of the two drive plates (72) that are away from each other is b1, and the distance between the side walls of the two fixed plates (5) that are close to each other is b2. b1 is less than b2.

4. The commercial vehicle seat installation structure according to claim 3, characterized in that: The inner bottom wall of the bottom groove (3) is fixedly connected with slide rails (73) corresponding to the drive plate (72). The length direction of the slide rails (73) is set along the length direction of the bottom groove (3). The longitudinal section of the slide rails (73) is T-shaped. The drive plate (72) is provided with mating holes (721) that are adapted to the slide rails (73). Each slide rail (73) is inserted into the corresponding mating hole (721).

5. A commercial vehicle seat installation structure according to claim 3 or 4, characterized in that: The clamping assembly (8) includes a horizontally arranged clamping plate (81). The length of the clamping plate (81) is telescopic. The length direction of the clamping plate (81) is set along the length direction of the bottom groove (3). The clamping plate (81) is elastic. When the clamping plate (81) is not subjected to external force, the length of the clamping plate (81) is greater than the length of the fixing plate (5). The bottom groove (3) is provided with a partition (32) perpendicular to the bottom wall of the bottom groove (3). The two partitions (32) are located at the two side edges of the bottom groove (3). The two abutting plates (81) are located between the two partitions (32). Each abutting plate (81) is slidably connected to the corresponding partition (32) and slides along the height direction of the partition (32). A limiting spring (813) is fixedly connected to the fixed end of the abutment plate (81). The upper end of the limiting spring (813) is fixed to the sealing plate (31). The limiting spring (813) limits the abutment plate (81) so that the abutment plate (81) is located at the bottom of the bottom groove (3). The distance between the upper surface of the abutment plate (81) and the sealing plate (31) is greater than the thickness of the fixed plate (5). The telescopic end of the abutment plate (81) is hinged with an abutment rod (85). The end of the abutment rod (85) away from the abutment plate (81) is downward and inclined toward the corresponding partition plate (32). The end of the abutment rod (85) away from the abutment plate (81) is hinged to the inner bottom wall of the bottom groove (3).

6. The commercial vehicle seat installation structure according to claim 5, characterized in that: The abutment plate (81) includes a sleeve plate (811), the opening of the sleeve plate (811) is away from the corresponding partition plate (32), and a plug plate (812) adapted to the sleeve plate (811) is slidably inserted into one side of the opening of the sleeve (4). A abutment spring (83) is fixedly connected to the inner bottom wall of the sleeve plate (811). One end of the abutment spring (83) away from the inner bottom wall of the sleeve (4) is fixedly connected to the side wall corresponding to the plug plate (812). Abutment rod (85) is hinged to the side of the lower surface of the plug plate (812) near the abutment spring (83). A through hole for the abutment rod (85) to move is opened on the lower surface of the sleeve plate (811).

7. The commercial vehicle seat installation structure according to claim 6, characterized in that: A T-shaped sliding block (82) is fixedly connected to the side wall of the sleeve plate (811) near the partition plate (32). The partition plate (32) has a sliding hole (321) adapted to the sliding block (82). The length direction of the sliding hole (321) is set along the height direction of the partition plate (32). Each sliding block (82) is slidably inserted into the corresponding sliding hole (321). The sliding block (82) is located on the side of the partition plate (32) away from the sleeve plate (811). The limiting spring (813) is located on the side of the partition plate (32) away from the sleeve plate (811). The lower end of the limiting spring (813) is fixedly connected to the upper surface of the sliding block (82).

8. The commercial vehicle seat installation structure according to claim 7, characterized in that: A guide rod (84) is slidably inserted into the sliding block (82), and the guide rod (84) is vertically fixed to the inner bottom wall of the tank. The upper end of the guide rod (84) is fixedly connected to the lower surface of the sealing plate (31).

9. A commercial vehicle seat mounting structure according to any one of claims 1 to 4, characterized in that: A rubber plate (55) is fixedly connected to the upper surface of the sealing plate (31).

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