Rotary sliding seat and engineering vehicle

Abstract

The utility model provides a rotary sliding seat which is applied to the technical field of vehicle seats, in particular to a rotary sliding seat which comprises a seat assembly, the seat assembly comprises a seat body and a rotary base, and the seat body is detachably and fixedly connected with the rotary base and can longitudinally slide relative to the rotary base; the rotating base is arranged above the seat base and can rotate relative to the seat base; when the base body slides to the end of the transverse sliding guide rail, the first limiting device and the second limiting device are started and can limit clockwise or anticlockwise rotation of the seat assembly relative to the seat base. According to the seat base of the rotary sliding seat, the rotary base can be kept in an original shape, the rotary sliding function can be kept only by replacing the seat body capable of longitudinally sliding relative to the rotary base, and rotary limiting can be achieved only by sliding the seat base to the end of the transverse sliding guide rail. The utility model further provides an engineering vehicle. The engineering vehicle comprises the rotary sliding seat.

Description

A rotating sliding seat and engineering vehicle Technical Field

[0001] This application relates to the field of vehicle seat technology, specifically to a rotating sliding seat and an engineering vehicle. Background Technology

[0002] Currently, light rollers have a compact overall spatial structure. For better wheel-side visibility during edge compaction operations, the seat could be designed to slide left and right and rotate. However, due to the limited space in light rollers, devices that simultaneously feature seat sliding and rotation present interference issues.

[0003] The existing road roller seats have their rotation and sliding mechanisms installed between the seat cushion and the base, so the seats cannot be replaced at will;

[0004] In addition, the seat rotation limit is achieved by using a limit pin in conjunction with the limit slot in the base plate. The limit slot is relatively large, which is not suitable for light road rollers with limited space. Moreover, the limit pin needs to be manually operated, that is, the limit pin needs to be manually moved to insert into the limit slot or pulled out of the limit slot to achieve rotation limit. This operation is cumbersome, time-consuming and laborious. Summary of the Invention

[0005] In view of this, this application provides a rotating sliding seat and an engineering vehicle, wherein the seat base and rotating base can remain unchanged, and the rotating sliding function can be maintained simply by replacing the seat body that can slide relative to itself longitudinally, and the rotation limiting device can be activated simply by sliding the seat base to the end of the transverse sliding guide rail.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A rotating sliding seat, comprising:

[0008] A seat assembly includes a seat body and a rotating base, wherein the lower part of the seat body is fixedly connected to the rotating base, and the upper part of the seat body can slide longitudinally relative to the lower part of the seat body;

[0009] A seat base, wherein the rotating base is disposed above the seat base and is rotatable relative to the seat base;

[0010] The seat base can slide relative to the transverse sliding guide rail; when the seat base slides to one end of the transverse sliding guide rail along its length, a first limiting device is activated and can limit the clockwise rotation of the seat assembly relative to the seat base; when the seat base slides to the other end of the transverse sliding guide rail along its length, a second limiting device is activated and can limit the counterclockwise rotation of the seat assembly relative to the seat base.

[0011] Optionally, the seat body includes a backrest, a seat, a longitudinal sliding guide rail, and a mounting part; the backrest and the seat are integrally formed, the longitudinal sliding guide rail is disposed between the seat and the mounting part, the seat can slide relative to the mounting part along the longitudinal sliding guide rail, and the mounting part is fixedly connected to the rotating base.

[0012] Optionally, the seat base includes a base body and a sliding sleeve, the rotating base is disposed above the base body and can rotate relative to the base body; the sliding sleeve is disposed on one side of the base body and sleeved on the sliding guide rod of the transverse sliding guide rail.

[0013] Optionally, the base body is provided with a first limiting device and a second limiting device, both of which are limiting pins. The limiting pins pass through the base body and the length direction of the limiting pins is perpendicular to the base body.

[0014] The transverse sliding guide rail includes the sliding guide rod and pin push plates respectively disposed at both ends of the sliding guide rod along its length. When the base body slides to one end or the other end of the sliding guide rod along its length, the pin push plate abuts against the lower end of the limiting pin and lifts the limiting pin relative to the base body. The state in which the limiting pin is lifted by the pin push plate is the activation state of the first limiting device and the second limiting device. After the base body slides away from one end or the other end of the sliding guide rod along its length, the limiting pin returns to its original position relative to the base body.

[0015] Optionally, the pin push plate includes a vertical connecting part and a horizontal abutting part that are connected to each other. The vertical connecting part is connected to the end of the sliding guide rod along its length direction by a guide rod fixing bolt. The horizontal abutting part is formed by extending from the upper end of the vertical connecting part in a direction away from the sliding guide rod. The vertical gap between the end of the horizontal abutting part near the vertical connecting part and the base body is greater than the vertical gap between the end of the horizontal abutting part away from the vertical connecting part and the base body.

[0016] Optionally, it may also include a pin retainer, which can limit the vertical displacement of the limiting pin relative to the base body.

[0017] Optionally, the rotating base includes a limiting side plate. When the limiting pin is pushed up by the pin body push plate, the limiting side plate can abut against the limiting pin. When the limiting pin is reset relative to the base body, there is a vertical gap between the lower edge of the limiting side plate and the upper end face of the limiting pin.

[0018] Optionally, a guide rod support fixing plate is also provided at the end of the sliding guide rod along its length, and the sliding guide rod is fixed to the floor of the cab by the guide rod support fixing plate.

[0019] Optionally, a support roller is also installed below the base body. When the base body slides relative to the transverse sliding guide rail, the support roller abuts against the floor of the cab and rolls relative to the floor.

[0020] The rotating sliding seat of this application is mounted on a rotating base by mounting a seat body that can slide longitudinally relative to itself. In this way, both the seat base and the rotating base can remain unchanged. Only different seat bodies need to be replaced according to actual needs, and then the lower part of the seat body is fixedly mounted on the rotating base. Furthermore, the first and second limiting devices, which serve as rotation limiting devices, do not require manual operation. Simply sliding the seat base to one end or the other end of the transverse sliding guide rail will activate the first and second limiting devices, thereby achieving rotation limiting of the seat assembly relative to the seat base.

[0021] This application also provides an engineering vehicle, including the aforementioned rotating sliding seat, which is installed in the cab of the engineering vehicle. This allows for a compact cab structure and facilitates the driver's rotation and sliding operation of the seat without affecting the driver's driving actions. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 is a schematic diagram of the rotating sliding seat of this application;

[0024] Figure 2 is a schematic diagram of the seat assembly and rotating support of this application;

[0025] Figure 3 is a schematic diagram of the rotating sliding seat of this application when it is in the second extreme position;

[0026] Figure 4 is a side view of Figure 3;

[0027] Figure 5 is a schematic diagram of Figure 4 with the seat assembly removed;

[0028] Figure 6 is a top view of Figure 5;

[0029] Figure 7 is a rear view of the transverse sliding guide rail of this application;

[0030] Figure 8 is a bottom view of the transverse sliding guide rail of this application;

[0031] Figure 9 is a schematic diagram of the rotating sliding seat of this application in the second extreme position.

[0032] In Figures 1-9:

[0033] 1. Seat assembly; 11. Seat body; 111. Seat back; 112. Seat seat; 113. Longitudinal sliding guide rail; 114. Mounting part; 12. Rotating base; 121. Bolt mounting hole; 122. Limiting side plate; 2. Seat base; 21. Base body; 211. Rotating support; 22. Vertical side plate; 23. Vertical end plate; 24. Sliding sleeve; 25. Support roller; 26. Pin fixing seat; 261. Second through hole; 27. Limiting pin; 271. Limiting stop; 3. Lateral sliding guide rail; 31. Sliding guide rod; 32. Guide rod end plate; 33. Guide rod support fixing plate; 34. Pin push plate; 341. Vertical connecting part; 342. Lateral abutment part; 35. Guide rod fixing bolt. Detailed Implementation

[0034] This application provides a rotating sliding seat and an engineering vehicle, in which the seat base and rotating base can remain unchanged. The rotating sliding function can be maintained simply by replacing the seat body, which can slide relative to itself longitudinally. The rotation limiting device can be activated simply by sliding the seat base to the end of the transverse sliding guide rail.

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] As shown in Figures 1-4 and 9, the rotating sliding seat provided in this application includes:

[0037] The seat assembly 1 includes a seat body 11 and a rotating base 12. The seat body 11 is mounted on the rotating base 12, and its lower part is detachably and fixedly connected to the rotating base 12. The upper part of the seat body 11 can slide longitudinally relative to the lower part of the seat body 11, that is, relative to the rotating base 12. Here, longitudinal refers to the direction from the front to the rear of the engineering vehicle, and lateral refers to the left and right direction of the cab. The same applies below.

[0038] The seat base 2 and the rotating base 12 are located above the seat base 2 and can rotate relative to the seat base 2. That is, when the seat body 11 rotates, the rotating base 12 follows the seat body 11 and rotates relative to the seat base 2.

[0039] The seat base 2 can slide relative to the transverse sliding guide rail 3, which also causes the seat assembly 1 to slide relative to the transverse sliding guide rail 3, thus enabling left and right movement within the driver's cab. When the seat base 2 slides to one end of the transverse sliding guide rail 3 along its length, the first limiting device is activated, restricting the clockwise rotation of the seat assembly 1 relative to the seat base 2. When the seat base 2 slides to the other end of the transverse sliding guide rail 3 along its length, the second limiting device is activated, restricting the counterclockwise rotation of the seat assembly 1 relative to the seat base 2. When the seat base 2 slides away from both ends of the transverse sliding guide rail 3 along its length, that is, when the seat base 2 slides to the middle of the transverse sliding guide rail 3, both the first and second limiting devices are released, at which point the seat assembly 1 can freely rotate clockwise or counterclockwise relative to the seat base 2.

[0040] The rotating sliding seat of this application is mounted on a rotating base 12 by mounting the seat body 11, which can slide longitudinally relative to itself. In this way, the seat base 2 and the rotating base 12 can remain unchanged. Only different seat bodies 11 need to be replaced according to actual needs, and the lower part of the seat body 11 is fixedly mounted on the rotating base 12. Furthermore, the first and second limiting devices, which are rotation limiting devices, do not require manual operation to activate. Simply slide the seat base 2 to one end or the other end of the transverse sliding guide rail 3 in the length direction to activate the first and second limiting devices, thereby realizing the rotation limiting of the seat assembly 1 relative to the seat base 2.

[0041] In a preferred embodiment, as shown in FIG2, the seat body 11 includes a backrest 111, a seat 112, a longitudinal sliding guide rail 113, and a mounting part 114. The backrest 111 and the seat 112 are integrally formed. Two longitudinal sliding guide rails 113 are arranged on the left and right sides between the seat 112 and the mounting part 114. The seat 112 can slide relative to the mounting part 114 along the longitudinal sliding guide rail 113. The length direction of the longitudinal sliding guide rail 113, that is, the sliding direction, is the front-back direction of the seat 112, thereby realizing the longitudinal sliding of the seat body 11 itself. The rotating base 12 is provided with bolt mounting holes 121, and the mounting part 114 is also provided with corresponding bolt mounting holes 121. The mounting part 114 is fixedly connected to the rotating base 12 by bolts. In this way, the seat body 11 can be replaced according to actual needs, and the seat base 2 and the rotating base 12 can remain unchanged without replacement.

[0042] In a preferred embodiment, as shown in Figures 2-4, the seat base 2 includes a base body 21 and a sliding sleeve 24. A rotating base 12 is disposed above the base body 21 and can rotate relative to the base body 21. A rotating support 211 is provided in the middle of the base body 21. The rotating base 12 of the seat assembly 1 is connected to the rotating support 211 and can rotate relative to the rotating support 211 to realize the rotation of the seat assembly 1 relative to the seat base 2. Vertical side plates 22 are provided on the left and right sides of the base body 21, and a vertical end plate 23 is provided on the front side of the base body 21, corresponding to the driver's leg, to prevent collision and protect the driver's leg. The sliding sleeve 24 is located on the lower rear side of the base body 21. The sliding sleeve 24 is sleeved on the sliding guide rod 31 of the transverse sliding guide rail 3 and can slide along the length direction of the sliding guide rod 31. The cross section of the sliding guide rod 31 is circular, but it can also be rectangular or polygonal to prevent the sliding sleeve 24 from rotating circumferentially relative to the sliding guide rod 31. Guide rod end plates 32 are provided at both ends of the sliding guide rod 31 to limit the sliding sleeve 24 and prevent the sliding sleeve 24 from falling off the end of the sliding guide rod 31. When the sliding sleeve 24 abuts against the guide rod end plates 32 at both ends, the first limiting device or the second limiting device can be activated.

[0043] In a preferred embodiment, as shown in Figures 3-5, a first limiting device and a second limiting device are provided on the base body 21. Both the first limiting device and the second limiting device are limiting pins 27. Specifically, a first through hole is provided on the left and right sides of the base body 21, and the limiting pin 27 passes through the first through hole of the base body 21. The length direction of the limiting pin 27 is perpendicular to the base body 21. A limiting baffle 271 is provided at the middle of the length direction of the limiting pin 27. The diameter of the limiting pin 27 is smaller than the diameter of the first through hole, and the diameter of the limiting baffle 271 is larger than the diameter of the first through hole. In the natural state, the lower surface of the limiting baffle 271 abuts against the upper surface of the base body 21, so that the limiting pin 27 will not slip off relative to the base body 21.

[0044] The transverse sliding guide rail 3 includes a sliding guide rod 31 and pin push plates 34 respectively disposed at both ends of the sliding guide rod 31 along its length. When the base body 21 slides to one end or the other end of the sliding guide rod 31 along its length, the pin push plate 34 can abut against the lower end of the limiting pin 27 and lift the limiting pin 27 relative to the base body 21. The state in which the limiting pin 27 is lifted by the pin push plate 34 is the activation state of the first limiting device and the second limiting device. After the base body 21 slides away from one end or the other end of the sliding guide rod 31 along its length, the limiting pin 27 falls down and resets relative to the base body 21. The first limiting device and the second limiting device of this application have simple structures and can be implemented without complex structures, which is also very convenient for the driver to operate.

[0045] In a preferred embodiment, as shown in Figures 5-8, the pin push plate 34 includes a vertical connecting portion 341 and a lateral abutting portion 342 connected to each other. The vertical connecting portion 341 is connected to the end of the sliding guide rod 31 along its length direction via a guide rod fixing bolt 35. The lateral abutting portion 342 extends from the upper end of the vertical connecting portion 341 in a direction away from the sliding guide rod 31. The vertical connecting portion 341 and the lateral abutting portion 342 generally form an L-shape. The end of the lateral abutting portion 342 near the vertical connecting portion 341 is connected to the base body 21. The vertical gap is greater than the vertical gap between the end of the transverse abutment 342 away from the vertical connecting part 341 and the base body 21. That is, the angle between the transverse abutment 342 and the vertical connecting part 341 is an obtuse angle. In this way, as the sliding sleeve 24 slides from the middle to the end of the sliding guide rod 31, the vertical gap between the first through hole of the base body 21 and the transverse abutment 342 gradually decreases. The limiting pin 27 is smoothly lifted relative to the base body 21, thereby realizing the activation of the first limiting device and the second limiting device.

[0046] In a preferred embodiment, as shown in Figures 5 and 6, a pin fixing seat 26 is also included. The pin fixing seat 26 can limit the vertical displacement of the limiting pin 27 relative to the base body 21. The limiting pin 27 fixing seat has an inverted U-shaped structure, and its opening extends to both sides to form a fixing part connected to the base body 21.

[0047] As shown in Figure 6, there are multiple first through holes, evenly distributed along the front and rear direction of the base body 21. Thus, the limiting pin 27 can be installed in the corresponding first through hole according to the actual situation, so that the seat assembly 1 can achieve different rotation angles relative to the seat base 2. The top of the inverted U-shaped structure is provided with multiple second through holes 261 corresponding to the multiple first through holes. The diameter of the second through hole 261 is smaller than the diameter of the limiting baffle 271. Therefore, the end of the limiting pin 27 can extend from the second through hole 261 until the limiting baffle 271 abuts against the lower surface of the inverted U-shaped structure, preventing the limiting pin 27 from being pushed out of the base body 21 by the pin push plate 34, thereby causing the limiting pin 27 to disengage from the base body 21.

[0048] In a preferred embodiment, as shown in Figures 3 and 4, the rotating base 12 includes a limiting side plate 122 on the side. The limiting side plate 122 cooperates with the limiting pin 27 to achieve rotational limiting: when the limiting pin 27 is pushed up by the pin body push plate 34, the limiting side plate 122 can abut against the outer periphery of the limiting pin 27; when the limiting pin 27 is reset relative to the base body 21, there is a vertical gap between the lower edge of the limiting side plate 122 and the upper end face of the limiting pin 27.

[0049] Specifically, when the base body 21 slides to the left side of the sliding guide rod 31 and abuts against the left guide rod end plate 32, the first limiting device on the left side is activated. That is, the left limiting pin 27 is pushed up relative to the base body 21 by the left pin push plate 34. At this time, the upper end surface of the limiting pin 27 is higher than the lower edge of the limiting side plate 122 of the rotating base 12. If the rotating base 12 rotates clockwise, the limiting side plate 122 will abut against the outer periphery of the limiting pin 27, thereby achieving rotational limiting. If the rotating base 12 rotates counterclockwise, it is not limited by the limiting pin 27 and can rotate freely.

[0050] Similarly, as shown in Figure 3, when the base body 21 slides to the right side of the sliding guide rod 31 and abuts against the right guide rod end plate 32, the second limiting device on the right side is activated. That is, the right limiting pin 27 is pushed up relative to the base body 21 by the right pin push plate 34. At this time, the upper end surface of the limiting pin 27 is higher than the lower edge of the limiting side plate 122 of the rotating base 12. If the rotating base 12 rotates counterclockwise, the limiting side plate 122 will abut against the outer periphery of the limiting pin 27, thereby achieving rotational limiting. As shown in Figure 9, if the rotating base 12 rotates clockwise, it is not limited by the limiting pin 27 and can rotate freely.

[0051] In a preferred embodiment, as shown in Figures 6-8, a guide rod support fixing plate 33 is further provided at the end of the sliding guide rod 31 along its length. The sliding guide rod 31 is fixed to the floor of the cab by the guide rod support fixing plate 33 and maintains a certain vertical distance from the floor to facilitate the sliding of the sliding sleeve. The guide rod support fixing plate 33 includes a vertical connecting plate and a horizontal connecting plate connected to each other. The vertical connecting plate is connected between the vertical connecting part 341 of the guide rod end plate 32 and the pin push plate 34. The horizontal connecting plate is provided on the side of the sliding guide rod 31 and is offset from the sliding guide rod 31 in the horizontal direction to avoid interference with the sliding guide rod 31. The horizontal connecting plate is fixed to the floor of the cab by fixing bolts.

[0052] In a preferred embodiment, as shown in Figures 1 and 4, the base body 21 is supported on the sliding guide rod 31 only by the sliding sleeve, resulting in poor support strength. Therefore, in this embodiment, a support roller 25 is also installed below the base body 21. When the base body 21 slides relative to the transverse sliding guide rail 3, the support roller 25 abuts against the floor of the cab and rolls relative to the floor. Specifically, a support roller 25 is provided at the vertical end plate 23 on the front side of the base body 21 to better support the base body 21 and assist the base body 21 in sliding relative to the transverse sliding guide rail 3.

[0053] This application also provides an engineering vehicle, including the aforementioned rotating sliding seat. The rotating sliding seat is installed in the cab of the engineering vehicle, which makes the cab of the engineering vehicle compact and facilitates the driver's rotation and sliding operation of the seat without affecting the driver's driving actions.

[0054] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0055] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the word “or” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0056] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled or recombined. These disassemblies or recombinations should be considered as equivalent solutions of this application.

[0057] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0058] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0059] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A rotating sliding seat, characterized in that, include: A seat assembly includes a seat body and a rotating base, wherein the lower part of the seat body is fixedly connected to the rotating base, and the upper part of the seat body can slide longitudinally relative to the lower part of the seat body; A seat base, wherein the rotating base is disposed above the seat base and can rotate relative to the seat base; a transverse sliding guide rail, wherein the seat base can slide relative to the transverse sliding guide rail; when the seat base slides to one end of the transverse sliding guide rail along its length, a first limiting device is activated and can limit the clockwise rotation of the seat assembly relative to the seat base; when the seat base slides to the other end of the transverse sliding guide rail along its length, a second limiting device is activated and can limit the counterclockwise rotation of the seat assembly relative to the seat base.

2. The rotating sliding seat according to claim 1, characterized in that, The seat body includes a backrest, a seat, a longitudinal sliding guide rail, and a mounting part; the backrest and the seat are integrally formed, the longitudinal sliding guide rail is disposed between the seat and the mounting part, the seat can slide relative to the mounting part along the longitudinal sliding guide rail, and the mounting part is fixedly connected to the rotating base.

3. The rotating sliding seat according to claim 2, characterized in that, The seat base includes a base body and a sliding sleeve. The rotating base is located above the base body and can rotate relative to the base body. The sliding sleeve is located on one side of the base body and is sleeved on the sliding guide rod of the transverse sliding guide rail.

4. The rotating sliding seat according to claim 3, characterized in that, The base body is provided with a first limiting device and a second limiting device, both of which are limiting pins. The limiting pins pass through the base body and are perpendicular to the base body in their length direction. The transverse sliding guide rail includes a sliding guide rod and pin push plates respectively disposed at both ends of the sliding guide rod in its length direction. When the base body slides to one end or the other end of the sliding guide rod in its length direction, the pin push plates can abut against the lower end of the limiting pin and lift the limiting pin relative to the base body. The state in which the limiting pin is lifted by the pin push plates is the activation state of the first limiting device and the second limiting device. After the base body slides away from one end or the other end of the sliding guide rod in its length direction, the limiting pin returns to its original position relative to the base body.

5. The rotating sliding seat according to claim 4, characterized in that, The pin push plate includes a vertical connecting part and a horizontal abutting part that are connected to each other. The vertical connecting part is connected to the end of the sliding guide rod along its length direction by a guide rod fixing bolt. The horizontal abutting part is formed by extending from the upper end of the vertical connecting part in a direction away from the sliding guide rod. The vertical gap between the end of the horizontal abutting part near the vertical connecting part and the base body is greater than the vertical gap between the end of the horizontal abutting part away from the vertical connecting part and the base body.

6. The rotating sliding seat according to claim 4, characterized in that, It also includes a pin fixing seat, which can limit the vertical displacement of the limiting pin relative to the base body.

7. The rotating sliding seat according to claim 4, characterized in that, The rotating base includes a limiting side plate. When the limiting pin is pushed up by the pin body push plate, the limiting side plate can abut against the limiting pin. When the limiting pin is reset relative to the base body, there is a vertical gap between the lower edge of the limiting side plate and the upper end face of the limiting pin.

8. The rotating sliding seat according to claim 4, characterized in that, The sliding guide rod is also provided with a guide rod support fixing plate at its length end, and the sliding guide rod is fixed to the floor of the cab by the guide rod support fixing plate.

9. The rotating sliding seat according to claim 3, characterized in that, A support roller is also installed below the base body. When the base body slides relative to the transverse sliding guide rail, the support roller abuts against the floor of the cab and rolls relative to the floor.

10. An engineering vehicle, characterized in that, Includes a rotating sliding seat as described in any one of claims 1-9, wherein the rotating sliding seat is installed in the cab of the engineering vehicle.

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