Light-weight bearing wheeled robot chassis mechanism

Abstract

The utility model discloses a lightweight bearing wheeled robot chassis mechanism, and belongs to the field of robot chassis, the lightweight bearing wheeled robot chassis mechanism comprises a chassis body, the two sides of the chassis body are fixedly provided with mounting blocks, the lower side of the chassis body is sleeved with a protective plate, the bottom end of the protective plate is provided with an inlet / outlet, and the cross section of the protective plate is U-shaped; two symmetrically-distributed inserting blocks are fixedly mounted at the top end of the protective plate, inserting grooves matched with the inserting blocks in the same set are formed in the bottom ends of the two mounting blocks, movable grooves are formed in the inserting grooves, fixing assemblies are arranged in the movable grooves, protective assemblies are arranged on the two sides of the protective plate, a groove is formed in the bottom end of the chassis body, and the protective assemblies are arranged in the groove. And a supporting frame is fixedly mounted on the inner wall of the bottom end of the protection plate. Through cooperation of the auxiliary moving assembly and the telescopic rod, one end of equipment can be conveniently lifted to cross an obstacle, after one end of the equipment crosses the obstacle, operation is repeated, the other end of the equipment crosses the obstacle, and the chassis body can be prevented from being scratched by the obstacle.

Description

Technical Field

[0001] The present application relates to the field of robot chassis, and more specifically, to a lightweight load-bearing wheeled robot chassis mechanism. Background Art

[0002] A robot is an intelligent machine that can work semi-autonomously or fully autonomously. It can perform tasks such as operation or movement through programming and automatic control. When a grasping robot is used indoors, it is mostly moved by a wheeled chassis, and the driving wheels on the wheeled chassis are used to rotate and drive the chassis and the robot above to move synchronously.

[0003] However, some existing wheeled chassis are relatively low, and the bottom of the chassis is close to the ground. In actual use, for example, in common indoor floors, there may be some high side strips, circuit protection plates, floor sockets, or some high threshold stones on the ground that block the movement of the chassis. Or in common factory floors, there may also be material scraps, thick wires, power strips and other items on the ground that block the movement of the wheeled chassis, which is inconvenient. Therefore, in order to solve the above problems, we propose a lightweight load-bearing wheeled robot chassis mechanism. Utility Model Content

[0004] In order to solve the above problems, the present application provides a lightweight load-bearing wheeled robot chassis mechanism, which adopts the following technical solutions:

[0005] A lightweight load-bearing wheeled robot chassis mechanism comprises a chassis body, mounting blocks are fixedly installed on both sides of the chassis body, a guard plate is sleeved on the lower side of the chassis body, an inlet and outlet are opened at the bottom end of the guard plate, and the cross-section of the guard plate is "U"-shaped, two symmetrically distributed plug blocks are fixedly installed on the top of the guard plate, slots matching the plug blocks in the same group are opened at the bottom ends of the two mounting blocks, movable slots are opened in the slots, and fixed components are provided in the movable slots, protective components are provided on both sides of the guard plate, a groove is opened at the bottom end of the chassis body, a support frame is fixedly installed on the inner wall of the bottom end of the guard plate, a screw is rotatably installed on the side wall of the support frame, and a moving block is sleeved on the side wall of the screw, and a mounting frame is arranged below the moving block, and two symmetrically distributed telescopic rods are fixedly installed between the mounting frame and the moving block, an auxiliary moving component is provided in the mounting frame, and a driving component is provided on the side wall of one end of the screw.

[0006] By adopting the above technical solution, when the equipment is in use, the staff will put the guard plate on the bottom of the chassis body, so that the plug-in block installed on the top of the guard plate moves into the slot opened at the bottom end of the mounting block on the same side. A fixing component is provided inside the slot, and the plug-in block is fixed by the fixing component, thereby playing the role of fixing the guard plate. When the equipment moves and encounters an obstacle in front, such as a thicker line, the driving component drives the screw to rotate, so that the moving block moves with the auxiliary moving component to one end of the forward direction of the equipment, and then the telescopic rod drives the mounting frame to move downward, so that the auxiliary moving component contacts the ground, thereby lifting one end of the equipment, and then the equipment moves forward. When the front wheel of the equipment passes over an obstacle, the telescopic rod is contracted to make the installation frame rise with the auxiliary moving device. Subsequently, the driving assembly drives the screw rod to rotate in the reverse direction, so that the moving block moves backward with the auxiliary moving component, and the auxiliary moving component is located behind the rear wheel of the equipment. The operation of the front wheel passing over the obstacle can be repeated. The setting of the auxiliary moving component makes it easier for the equipment to pass over obstacles, and the guard plate can protect the bottom of the chassis body, which is beneficial to reduce the damage to the bottom of the chassis body. The guard plate on both sides protects the two ends of the chassis body through the components of the protective component, which helps to reduce the damage caused by the collision of the equipment.

[0007] Furthermore, the fixing assembly includes a fixing block slidably installed in the movable groove, a first spring is fixedly connected between the fixing block and the inner wall on the side opposite to the movable groove on the same side, and a fixing groove matching the fixing block in the same group is formed on the upper side wall of the insert block.

[0008] By adopting the above technical solution, when the staff installs the guard plate, they move the plug block installed on the top of the guard plate into the slot opened at the bottom end of the mounting block on the same side. When the plug block moves into the slot, the plug block pushes the fixed block to slide into the movable slot, and the fixed block pushes the first spring of the same group to contract. When the plug block and the slot are completely engaged, the fixed block returns to its original position under the elastic force of the first spring, and the end of the fixed block engages with the fixed slot opened on the side wall of the plug block, thereby fixing the plug block and further fixing the guard plate.

[0009] Furthermore, the two fixed blocks are fixedly installed with sliders near the top and bottom of the first spring section of the same group, the inner wall of the movable groove is provided with a sliding groove matching the slider on the same side, and the opposite sides of the two fixed blocks are fixedly installed with toggle rods, and the two toggle rods slide through the movable groove on the same side away from the end of the guard plate.

[0010] By adopting the above technical solution, when the fixed block slides in the movable groove, the fixed block slides with the sliding block in the sliding groove on the same side. The cooperation of the sliding block and the sliding groove is beneficial to improve the stability of the movement of the fixed block. When the guard plate needs to be removed, the staff pulls the fixed blocks of the same group to slide into the movable groove through the toggle rod, so that the fixed block is disengaged from the fixed groove opened on the side wall of the plug block, and then the guard plate can be removed.

[0011] Furthermore, the protection component includes anti-collision plates arranged on both sides of the guard plate, and two symmetrically distributed pillars are fixedly installed on both sides of the guard plate. The pillars are provided with storage grooves at one end away from the guard plate, and support rods are slidably installed in the storage grooves. The support rods are fixedly connected with a second spring on the side of the support rods close to the guard plate and opposite to the storage grooves in the same group, and the two support rods in the same group are fixedly connected at one end away from the guard plate and opposite to the anti-collision plate on the same side.

[0012] By adopting the above technical solution, when the device moves and touches an object, the object first touches the anti-collision plate, which can help prevent the object from directly hitting the chassis body, thereby achieving the effect of protecting the chassis body, and when the object touches the anti-collision plate, the anti-collision plate pushes the support rod on the same side to move into the storage groove, and the support rod pushes the second spring in the same group to contract, and then the support rod pushes the anti-collision plate back under the elastic force of the second spring, which can play a buffering role.

[0013] Furthermore, two symmetrically distributed limit blocks are fixedly mounted on the side wall of the support rod close to one end of the guard plate, and the inner wall of the storage groove is provided with a limit groove matching the limit block on the same side.

[0014] By adopting the above technical solution, when the support rod slides in the storage groove, the support rod slides with the lower block in the limit groove. The cooperation between the limit block and the limit groove helps to prevent the support rod from detaching from the storage groove and helps to improve the stability of the support rod movement.

[0015] Furthermore, the auxiliary movement component includes a mounting rod rotatably installed in the mounting frame, the side wall fixing sleeve of the mounting rod is provided with two symmetrically distributed auxiliary wheels, a first reduction motor is provided on one side of the mounting frame, and one end of the mounting rod passes through the mounting frame and is fixedly connected to the end of the output shaft of the first reduction motor.

[0016] By adopting the above technical solution, the installation frame is driven to descend with the auxiliary wheels through the telescopic rod, and the auxiliary wheels are made to contact the ground, thereby lifting one end of the equipment. Subsequently, the installation rod is driven to rotate by the first reduction motor, and the installation rod drives the auxiliary wheels to rotate, thereby driving the equipment to move, making it easier for the equipment to overcome obstacles.

[0017] Furthermore, the driving assembly includes a driven gear fixedly sleeved on the side wall of one end of the screw, a second reduction motor is provided on the top of the support frame, and the output shaft of the second reduction motor rotates and passes through the support frame, the output shaft of the second reduction motor is fixedly sleeved with a driving gear, and the driving gear and the driven gear are meshed, a stabilizing rod is fixedly installed in the support frame, one end of the stabilizing rod slides through the moving block, and the side wall of the screw is fixedly sleeved with two symmetrically distributed retaining rings.

[0018] By adopting the above technical solution, the second reduction motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the screw to rotate, so that the moving block is located in the support frame and moves, and the moving block is located on the stabilizing rod and moves. The setting of the stabilizing rod is helpful to avoid the synchronous rotation of the moving block with the screw rod, and is helpful to maintain the stability of the movement of the moving block. When the moving block moves, the mounting frame moves synchronously with the auxiliary wheel, which can play a role in adjusting the position of the auxiliary wheel, making it easy to adjust the lifting direction of the equipment, and thus making it easy for the equipment to cross obstacles.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] (1) In the present application, the auxiliary moving assembly is driven by a telescopic rod to descend through the inlet and outlet, and the auxiliary moving assembly is brought into contact with the ground, thereby causing one end of the device to rise and form an inclined shape. Subsequently, the device is driven to cross the obstacle. Subsequently, the auxiliary moving assembly is driven to rise by the telescopic rod, and the driving assembly drives the screw to rotate, so that the moving block moves with the auxiliary moving assembly, thereby achieving the effect of adjusting the position of the auxiliary moving assembly, thereby facilitating the adjustment of the other end of the device to cross the obstacle, which helps to prevent the obstacle from scratching the chassis body.

[0021] (2) In the present application, the protective components are arranged on both sides of the guard plate, and the anti-collision plate, the pillar, the support rod and the second spring cooperate to achieve the effect of protecting the chassis body.

[0022] (3) In the present application, the guard plate is fixedly installed by setting a fixing component. When the skateboard needs to be removed, the fixing block is moved into the movable groove by pulling the toggle rod, thereby disengaging the fixing block from the fixing groove opened on the side wall of the same group of plug-in blocks, and then the guard plate can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a lightweight load-bearing wheeled robot chassis mechanism;

[0024] Figure 2 A bottom view of the present application;

[0025] Figure 3 For this application Figure 2 A magnified view of middle;

[0026] Figure 4 This is a schematic diagram of the structure from the first perspective of the cross-sectional view of this application;

[0027] Figure 5 For this application Figure 4 Enlarged view of middle B;

[0028] Figure 6 It is a schematic structural diagram of a second viewing angle of a cross-sectional view of the present application;

[0029] Figure 7 For this application Figure 6 Enlarged view of middle C;

[0030] Figure 8 For this application Figure 6 Enlarged view of D in the middle.

[0031] Description of the numbers in the figure:

[0032] 1. Chassis body; 2. Mounting block; 3. Pillar; 4. Guard plate; 5. Anti-collision plate; 6. Insert block; 7. Support rod; 8. Driving gear; 9. Driven gear; 10. Screw; 11. Mounting frame; 12. Mounting rod; 13. Auxiliary wheel; 14. First reduction motor; 15. Support frame; 16. Moving block; 17. Telescopic rod; 18. Groove; 19. Second reduction motor; 20. Fixed block; 21. First spring; 22. Movable groove; 23. Storage groove; 24. Second spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] See also Figure 1-8 A lightweight wheeled robot chassis mechanism includes a chassis body 1, mounting blocks 2 are fixedly installed on both sides of the chassis body 1, a guard plate 4 is sleeved on the lower side of the chassis body 1, an inlet and outlet are opened at the bottom end of the guard plate 4, and the cross-section of the guard plate 4 is "U"-shaped, and two symmetrically distributed plug-in blocks 6 are fixedly installed on the top of the guard plate 4, and slots matching the same group of plug-in blocks 6 are opened at the bottom ends of the two mounting blocks 2, and movable grooves 22 are opened in the slots, and fixed components are arranged in the movable grooves 22, and the fixed components include a fixed block 20 slidably installed in the movable groove 22, and a first spring 21 is fixedly connected between the fixed block 20 and the inner wall of the side opposite to the movable groove 22 on the same side, and the plug-in block 6 The upper side wall is provided with a fixing groove matching with the fixing block 20 of the same group. When the equipment is used, the staff sets the guard plate 4 on the bottom of the chassis body 1, so that the plug block 6 installed on the top of the guard plate 4 moves into the slot opened at the bottom end of the mounting block 2 on the same side. When the plug block 6 moves into the slot, the plug block 6 pushes the fixing block 20 to slide into the movable slot 22, and the fixing block 20 pushes the first spring 21 of the same group to contract. When the plug block 6 and the slot are completely engaged, the fixing block 20 returns to its original position under the elastic force of the first spring 21, and the end of the fixing block 20 is engaged with the fixing groove opened on the side wall of the plug block 6, which can play the role of fixing the plug block 6, and then play the role of fixing the guard plate 4.

[0038] The two fixed blocks 20 are fixedly installed with sliders on the top and bottom of a section near the same group of first springs 21, and the inner wall of the movable groove 22 is provided with a sliding groove matching the slider on the same side. The opposite sides of the two fixed blocks 20 are fixedly installed with toggle rods, and the two toggle rods slide through the movable groove 22 on the same side away from the end of the guard plate 4. When the fixed block 20 is located in the movable groove 22 and slides, the fixed block 20 slides in the sliding groove on the same side with the slider. The cooperation of the slider and the sliding groove is conducive to improving the stability of the movement of the fixed block 20, and when the guard plate 4 needs to be removed, the staff pulls the fixed block 20 of the same group to slide into the movable groove 22 through the toggle rod, so that the fixed block 20 is disengaged from the fixed groove opened on the side wall of the plug block 6, and then the guard plate 4 can be removed.

[0039] A groove 18 is provided at the bottom end of the chassis body 1, a support frame 15 is fixedly installed on the inner wall of the bottom end of the guard plate 4, and a screw 10 is rotatably installed on the side wall of the support frame 15, and a moving block 16 is sleeved on the side wall of the screw 10, and a mounting frame 11 is provided below the moving block 16, and two symmetrically distributed telescopic rods 17 are fixedly installed between the mounting frame 11 and the moving block 16, and an auxiliary moving component is provided in the mounting frame 11, and the auxiliary moving component includes a mounting rod 12 rotatably installed in the mounting frame 11, and two symmetrically distributed auxiliary wheels 13 are fixedly sleeved on the side wall of the mounting rod 12 A first reduction motor 14 is provided on one side of the mounting frame 11, and one end of the mounting rod 12 passes through the mounting frame 11 and is fixedly connected to the end of the output shaft of the first reduction motor 14. When the device moves and encounters an obstacle in front, such as a thicker line, the mounting frame 11 is driven to descend with the auxiliary wheel 13 through the telescopic rod 17, and the auxiliary wheel 13 is brought into contact with the ground, thereby lifting one end of the device. Subsequently, the mounting rod 12 is driven to rotate by the first reduction motor 14, and the mounting rod 12 drives the auxiliary wheel 13 to rotate, which can play a role in driving the device to move, making it easier for the device to overcome obstacles.

[0040] A driving assembly is provided on the side wall of one end of the screw 10, and the driving assembly includes a driven gear 9 fixedly sleeved on the side wall of one end of the screw 10, a second reduction motor 19 is provided on the top of the support frame 15, and the output shaft of the second reduction motor 19 rotates and penetrates the support frame 15, and the output shaft of the second reduction motor 19 is fixedly sleeved with a driving gear 8, and the driving gear 8 and the driven gear 9 are meshed, and a stabilizing rod is fixedly installed in the support frame 15, and one end of the stabilizing rod slides through the moving block 16, and the side wall of the screw 10 is fixedly sleeved with two symmetrically distributed retaining rings, which are driven by the second reduction motor 19 The driving gear 8 rotates, and the driving gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the screw 10 to rotate, thereby causing the moving block 16 to move in the supporting frame 15, and the moving block 16 is located on the stabilizing rod and moves. The setting of the stabilizing rod is conducive to preventing the moving block 16 from rotating synchronously with the screw 10, and is conducive to maintaining the stability of the movement of the moving block 16. When the moving block 16 moves, the mounting frame 11 moves synchronously with the auxiliary wheel 13, which can play a role in adjusting the position of the auxiliary wheel 13, so as to facilitate the adjustment of the lifting direction of the equipment, and thus facilitate the equipment to cross obstacles.

[0041] When the object touches the anti-collision plate 5 during movement, the anti-collision plate 5 can help to prevent the object from directly hitting the chassis body 1, thereby achieving the effect of protecting the chassis body 1, and when the object touches the anti-collision plate 5, the anti-collision plate 5 pushes the support rod 7 on the same side to move into the storage groove 23, and the support rod 7 pushes the second spring 24 of the same group to contract, and then the support rod 7 pushes the anti-collision plate 5 back under the elastic force of the second spring 24, which can play a buffering role.

[0042] Two symmetrically distributed limit blocks are fixedly installed on the side wall of the support rod 7 near the guard plate 4. The inner wall of the storage groove 23 is provided with a limit groove matching the limit block on the same side. When the support rod 7 slides in the storage groove 23, the support rod 7 slides in the limit groove with the lower block. The cooperation between the limit block and the limit groove helps to prevent the support rod 7 from detaching from the storage groove 23 and helps to improve the stability of the movement of the support rod 7.

[0043] The implementation principle of the embodiment of the present application is as follows: when the device is in use, the staff sleeves the guard plate 4 on the bottom of the chassis body 1, so that the plug block 6 installed on the top of the guard plate 4 moves into the slot opened at the bottom end of the mounting block 2 on the same side. A fixing component is provided inside the slot, and the plug block 6 is fixed by the fixing component, thereby playing the role of fixing the guard plate 4. When the device moves and encounters an obstacle in front, such as a thicker line, the driving component drives the screw 10 to rotate, so that the moving block 16 moves with the auxiliary moving component to one end of the forward direction of the device, and then the telescopic rod 17 drives the mounting frame 11 to move downward, so that the auxiliary moving component contacts the ground, thereby lifting one end of the device, and then the device moves forward. Movement, when the front wheel of the equipment passes over an obstacle, the telescopic rod 17 is retracted, so that the installation frame 11 rises with the auxiliary moving device, and then, the driving component drives the screw 10 to rotate in the reverse direction, so that the moving block 16 moves backward with the auxiliary moving component, and the auxiliary moving component is located behind the rear wheel of the equipment, and the operation of the front wheel passing over the obstacle is repeated. Through the setting of the auxiliary moving component, it is convenient for the equipment to pass over obstacles, and the guard plate 4 can play a role in protecting the bottom of the chassis body 1, which is beneficial to reduce the damage to the bottom of the chassis body 1. The guard plate 4 on both sides protects the two ends of the chassis body 1 through the components of the protective component, which helps to reduce the damage caused by the collision of the equipment.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lightweight load-bearing wheeled robot chassis structure, comprising a chassis body (1), characterized in that: Mounting blocks (2) are fixedly mounted on both sides of the chassis body (1); a guard plate (4) is sleeved on the lower side of the chassis body (1); an inlet and outlet are provided at the bottom end of the guard plate (4); and the cross section of the guard plate (4) is U-shaped; two symmetrically distributed plug blocks (6) are fixedly mounted on the top of the guard plate (4); slots matching the plug blocks (6) of the same group are provided at the bottom ends of the two mounting blocks (2); movable slots (22) are provided in the slots; and fixed components are provided in the movable slots (22); protective components are provided on both sides of the guard plate (4); A groove (18) is provided at the bottom end of the chassis body (1), a support frame (15) is fixedly installed on the inner wall of the bottom end of the guard plate (4), a screw rod (10) is rotatably installed on the side wall of the support frame (15), a moving block (16) is sleeved on the side wall of the screw rod (10), a mounting frame (11) is provided below the moving block (16), two symmetrically distributed telescopic rods (17) are fixedly installed between the mounting frame (11) and the moving block (16), an auxiliary moving component is provided in the mounting frame (11), and a driving component is provided on the side wall of one end of the screw rod (10).

2. A lightweight load-bearing wheeled robot chassis mechanism according to claim 1, characterized in that: The fixing assembly comprises a fixing block (20) slidably mounted in a movable groove (22); a first spring (21) is fixedly connected between the fixing block (20) and an inner wall on a side opposite to the movable groove (22) on the same side; and a fixing groove matching the fixing block (20) of the same group is formed on the upper side wall of the insert block (6).

3. A lightweight load-bearing wheeled robot chassis mechanism according to claim 2, characterized in that: The two fixed blocks (20) are fixedly installed with sliding blocks at the top and bottom of a section near the first spring (21) of the same group, and the inner wall of the movable groove (22) is provided with a sliding groove matching the sliding block on the same side. The opposite side of the two fixed blocks (20) is fixedly installed with a toggle rod, and the two toggle rods slide through the movable groove (22) on the same side at one end away from the guard plate (4).

4. A lightweight load-bearing wheeled robot chassis mechanism according to claim 1, characterized in that: The protection component comprises anti-collision plates (5) arranged on both sides of the guard plate (4), two symmetrically distributed pillars (3) are fixedly installed on both sides of the guard plate (4), and the ends of the pillars (3) away from the guard plate (4) are provided with storage grooves (23), and support rods (7) are slidably installed in the storage grooves (23), and the side of the support rods (7) close to the guard plate (4) and opposite to the storage grooves (23) in the same group are fixedly connected with second springs (24), and the ends of the two support rods (7) in the same group away from the guard plate (4) are fixedly connected to the side opposite to the anti-collision plate (5) on the same side.

5. A lightweight load-bearing wheeled robot chassis mechanism according to claim 4, characterized in that: Two symmetrically distributed limit blocks are fixedly mounted on the side wall of one end of the support rod (7) close to the guard plate (4), and the inner wall of the receiving groove (23) is provided with a limit groove matching the limit block on the same side.

6. A lightweight load-bearing wheeled robot chassis mechanism according to claim 1, characterized in that: The auxiliary moving assembly comprises a mounting rod (12) rotatably mounted in a mounting frame (11); a side wall of the mounting rod (12) is fixedly sleeved with two symmetrically distributed auxiliary wheels (13); a first reduction motor (14) is disposed on one side of the mounting frame (11); one end of the mounting rod (12) penetrates the mounting frame (11) and is fixedly connected to the end of an output shaft of the first reduction motor (14).

7. The lightweight load-bearing wheeled robot chassis mechanism according to claim 1, characterized in that: The driving assembly comprises a driven gear (9) fixedly sleeved on the side wall of one end of the screw rod (10); a second reduction motor (19) is provided at the top of the support frame (15); the output shaft of the second reduction motor (19) rotates and passes through the support frame (15); a driving gear (8) is fixedly sleeved on the output shaft of the second reduction motor (19); the driving gear (8) and the driven gear (9) are meshed; a stabilizing rod is fixedly installed in the support frame (15); one end of the stabilizing rod slides through the moving block (16); and two symmetrically distributed retaining rings are fixedly sleeved on the side wall of the screw rod (10).

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