Steering switching device

Abstract

The steering switching device comprises a first steering mechanism, a second steering mechanism and a switching mechanism, the switching mechanism comprises a box body, a first connecting gear is arranged in the box body, a third connecting gear is arranged in the box body, a moving sleeve is movably arranged in the box body, and an annular tooth groove is formed in the inner wall of the moving sleeve; the outer wall of the movable sleeve is fixedly sleeved with a second connecting gear. By means of the arrangement of the switching mechanism, a first connecting gear is meshed with the inner wall of an annular tooth groove through movement of a moving sleeve, a second connecting gear is meshed with a third connecting gear through reverse movement of the moving sleeve, and the working independence of the first steering mechanism and the second steering mechanism is guaranteed; and meanwhile, the first steering mechanism and the second steering mechanism can be mechanically adjusted through movement of the movable sleeve, the phenomenon that faults are prone to occurring in electronic adjustment is avoided, and the working stability of the steering switching device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steering switching, and in particular to a steering switching device. Background Art

[0002] An amphibious vehicle is a multifunctional vehicle that can travel both on land and on water.

[0003] The steering controllers for driving on land and driving in water in an amphibious vehicle are different, that is, when the amphibious vehicle switches to different driving modes, the steering control of the amphibious vehicle needs to be adjusted before driving.

[0004] However, when amphibious vehicles adjust different steering controls, most of them are adjusted by electronic control. However, the electronic control method is affected by the environment and internal circuits. If the electronic signal transmission is unstable, the steering control cannot be stably adjusted. For this reason, we propose a steering switching device. Summary of the invention

[0005] The object of the present invention is to provide a steering switching device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a steering switching device, comprising:

[0007] a first steering mechanism, wherein the first steering mechanism is used for steering the vehicle when it is traveling on land;

[0008] a second steering mechanism, the second steering mechanism being used for steering the vehicle when traveling on water;

[0009] A switching mechanism, which is used for switching between a first steering mechanism and a second steering mechanism, and comprises a housing, wherein a first connecting gear is arranged inside the housing, and the first connecting gear is connected to the first steering mechanism, a third connecting gear is arranged inside the housing, and the third connecting gear is connected to the second steering mechanism, a movable sleeve is movably arranged inside the housing, an annular tooth groove is provided on the inner wall of the movable sleeve, and a second connecting gear is fixedly sleeved on the outer wall of the movable sleeve.

[0010] Preferably, the first steering mechanism includes a first movable rod, a top end of the first movable rod is provided with a linear tooth groove, the top end of the linear tooth groove is meshed with a helical gear, both ends of the first movable rod are provided with a first connecting rod, both ends of the first movable rod are fixedly connected with a ball head bushing, one end of the first connecting rod is fixedly connected with an inner ball head seat, the inner ball head seat is movably arranged on the inner wall of the ball head bushing, the other end of the first connecting rod is fixedly connected with a second connecting rod, a steering knuckle is provided on one side of the second connecting rod, the outer wall of the steering knuckle is fixedly connected with a first connecting strip, and the second connecting rod is rotatably connected to the first connecting strip.

[0011] Preferably, the outer wall of the first movable rod is sleeved with a shell, both ends of the shell are fixedly connected with dust covers, the dust covers are positioned opposite to the ball head bushing, the top of the shell is fixedly connected with a connecting cover, the bevel gear is arranged inside the connecting cover, the bottom end of the shell is threadedly connected with an extrusion bolt, the top of the extrusion bolt is provided with a first spring, the top of the first spring is provided with an extrusion seat, and the extrusion seat is arranged at the bottom end of the first movable rod.

[0012] Preferably, the second rotating mechanism includes an output shaft, a second connecting strip and a guide cover, the front side of the output shaft is fixedly connected with an external thread block, the front side of the second connecting strip is provided with an internal thread hole, the outer wall of the external thread block is meshedly connected with the inner wall of the internal thread hole, the front side of the second connecting strip is rotatably provided with a third connecting strip, one end of the third connecting strip is rotatably connected with the outer wall of the guide cover, a fixing seat is inserted into the inner wall of the guide cover, the outer wall of the fixing seat is rotatably connected with a third connecting rod, one end of the third connecting rod is fixedly connected with a blade inside the fixing seat, the other end of the third connecting rod is provided with a first universal joint, one end of the first universal joint is fixedly connected with a fourth connecting rod, and one end of the fourth connecting rod is fixedly connected with a connecting disk.

[0013] Preferably, the back side of the box is rotatably connected to the first main shaft, the outer wall of the first main shaft is fixedly sleeved with a fixing ring, the first connecting gear is fixedly sleeved on the outer wall of the fixing ring, one end of the first main shaft is fixedly connected to the second universal joint, one end of the second universal joint is fixedly connected to the fifth connecting rod, one end of the fifth connecting rod is fixedly connected to the third universal joint, one end of the third universal joint is fixedly connected to the sixth connecting rod, one end of the sixth connecting rod is fixedly connected to the fourth universal joint, one end of the fourth universal joint is fixedly connected to the seventh connecting rod, and the seventh connecting rod is connected to the bevel gear.

[0014] Preferably, the back side of the box is rotatably connected to the second main shaft, the third connecting gear is fixedly sleeved on the outer wall of the second main shaft, one end of the second main shaft is fixedly connected to the sixth universal joint, one end of the sixth universal joint is fixedly connected to the eighth connecting rod, one end of the eighth connecting rod is fixedly connected to the seventh universal joint, one end of the seventh universal joint is fixedly connected to the ninth connecting rod, and the eighth universal joint is arranged between the ninth connecting rod and the output shaft.

[0015] Preferably, the front side of the box is rotatably connected with an operating shaft, one end of the operating shaft is provided with a steering wheel, the inner wall of the first main shaft is provided with a socket, the outer wall of the operating shaft is movably connected with the inner wall of the socket, and an adjustment mechanism is provided between the operating shaft and the movable sleeve.

[0016] Preferably, the adjusting mechanism includes a central hole groove opened in the operating shaft, the inner wall of the central hole groove is movably connected with a second movable rod, the outer wall of the operating shaft is provided with a plurality of first sliding grooves, the interior of the first sliding grooves is connected with the interior of the central hole groove, the inner wall of the movable sleeve is fixedly connected with a plurality of first sliding blocks, the outer wall of the first sliding block is slidably connected with the inner wall of the first sliding groove, the first sliding block is fixedly connected to the outer wall of the second movable rod, the outer wall of the operating shaft and the outer sleeve of the box body are provided with a movable ring, the outer wall of the operating shaft is symmetrically provided with a second sliding groove, the temporal part of the second sliding groove is connected with the interior of the central hole groove, the inner wall of the movable ring is symmetrically fixedly connected with the second sliding block, The outer wall is slidably connected to the inner wall of the second slide groove, the second slide groove is fixedly connected to the outer wall of the second movable rod, the inner wall of the movable ring is symmetrically provided with movable holes, the inner wall of the movable hole is movably connected with a positioning rod, the outer wall of the operating shaft is provided with a plurality of positioning holes, the outer wall of the positioning rod is movably connected with the inner wall of the positioning hole, the inner wall of the movable hole is provided with a movable cavity, the inner wall of the movable cavity is slidably connected with a limiting ring, the limiting ring is fixedly sleeved on the outer wall of the positioning rod, a second spring is arranged between the limiting ring and the inner wall of the movable cavity, the inner wall of the movable cavity is provided with a connecting hole, one end of the positioning rod passes through the interior of the connecting hole and is fixedly connected with a connecting plate, and the outer wall of the connecting plate is fixedly connected with a pull ring.

[0017] Preferably, the inner wall of the box body is fixedly connected to an oil box, an extrusion mechanism is provided inside the box body, an oil groove is provided on the inner wall of the oil box, a first one-way valve is provided on the inner wall of the oil box, a connecting pipe is fixedly connected to the outer wall of the oil box, the connecting pipe passes through the box body and extends to the outside of the box body, a first connecting groove is provided on the inner wall of the oil groove, a second connecting groove is formed on the inner wall of the first connecting groove, a first oil injection hole is provided on the inner wall of the second connecting groove, a second one-way valve is provided on the inner wall of the first oil injection hole, and the second one-way valve is opposite to the third connecting gear.

[0018] Preferably, the extrusion mechanism includes a connecting box fixedly connected to the inner wall of the oil box, a connecting chamber is defined between the connecting box and the oil tank, a piston plate is slidably connected to the inner wall of the connecting chamber, a third spring is provided between the piston plate and the inner wall of the connecting chamber, a connecting hole is defined on the inner wall of the connecting chamber, a second extrusion block is fixedly connected to the outer wall of the piston plate away from the third spring, the second extrusion block is inserted through the inner wall of the connecting hole, a first extrusion block is fixedly connected to the inner wall of the movable sleeve, and the first extrusion block and the second extrusion block are positioned opposite to each other.

[0019] Technical effects and advantages of the present invention:

[0020] The present invention utilizes the setting of a switching mechanism. When the first steering mechanism is needed to perform a steering operation for driving on land, the first connecting gear is meshed with the inner wall of the annular tooth groove by moving the moving sleeve. When the second steering mechanism is needed to perform a steering operation for driving in water, the second connecting gear is meshed with the third connecting gear by moving the moving sleeve in the opposite direction. The independence of the operation of the first steering mechanism and the second steering mechanism is ensured. At the same time, the first steering mechanism and the second steering mechanism can be mechanically adjusted by moving the moving sleeve, thereby avoiding the phenomenon that electronic adjustment is prone to failure and ensuring the stability of the operation of the steering switching device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the first steering mechanism of the present invention.

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the ball head bushing of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the second steering mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the third connecting bar of the present invention.

[0027] Figure 7 It is a schematic diagram of the top cross-sectional structure of the switching mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the side sectional structure of the moving ring of the present invention.

[0029] Fig. 9 For the present invention Figure 7Schematic diagram of the local enlarged structure at C.

[0030] Fig.10 For the present invention Figure 7 Schematic diagram of the local enlarged structure at point B.

[0031] In the figure: 101, helical gear; 102, linear tooth groove; 103, first movable rod; 104, first connecting rod; 105, steering knuckle; 106, first connecting strip; 107, second connecting rod; 108, ball bushing; 109, inner ball seat; 110, housing; 111, dust cover; 112, connecting cover; 113, extrusion bolt; 114, first spring; 115, extrusion seat; 201, output shaft; 202, second connecting strip; 203, external thread block; 204, internal thread hole; 205, guide cover; 206, third connecting bar; 207, fixing seat; 208, third connecting rod; 209, blade; 210, connecting plate; 211, fourth connecting rod; 212, first universal joint; 301, box; 302, first main shaft; 303, second universal joint; 304, fifth connecting rod; 305, third universal joint; 306, sixth connecting rod; 307, fourth universal joint; 308, seventh connecting rod; 400, eighth connecting rod; 401, second main shaft; 402, sixth universal joint; 403, seventh universal joint; 40 4. Ninth connecting rod; 405. Eighth universal joint; 500. Socket; 501. Operating shaft; 502. Steering wheel; 503. Moving sleeve; 504. Fixed ring; 505. First connecting gear; 506. Annular tooth groove; 507. Second connecting gear; 508. Third connecting gear; 601. Center hole groove; 602. Second movable rod; 603. First slide groove; 604. First slider; 605. Second slide groove; 606. Moving ring; 607. Second slider; 608. Active hole; 609. Positioning rod; 61 0, positioning hole; 611, movable cavity; 612, limiting ring; 613, second spring; 614, connecting hole; 615, connecting plate; 616, pull ring; 701, oil box; 702, oil groove; 703, first connecting groove; 704, first one-way valve; 705, second connecting groove; 706, first oil injection hole; 707, second one-way valve; 708, connecting box; 709, connecting cavity; 710, piston plate; 711, third spring; 712, first extrusion block; 713, connecting hole; 714, second extrusion block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention provides Figure 1-10 A steering switching device is shown, comprising a first steering mechanism, a second steering mechanism and a switching mechanism. The first steering mechanism is used for steering when the vehicle is traveling on land, and the second steering mechanism is used for steering when the vehicle is traveling on water. The first steering mechanism and the second steering mechanism are both applied to different scenarios of use of amphibious vehicles, and then the first steering mechanism and the second steering mechanism are switched by the switching mechanism.

[0034] The switching mechanism is used for switching between the first steering mechanism and the second steering mechanism. The switching mechanism includes a box body 301. A first connecting gear 505 is arranged inside the box body 301. The first connecting gear 505 is connected to the first steering mechanism. A third connecting gear 508 is arranged inside the box body 301. The third connecting gear 508 is connected to the second steering mechanism. A moving sleeve 503 is movably arranged inside the box body 301. An annular tooth groove 506 is opened on the inner wall of the moving sleeve 503. A second connecting gear 507 is fixedly sleeved on the outer wall of the moving sleeve 503. When the first steering mechanism is required to travel on land, During steering operation, the first connecting gear 505 is meshed with the inner wall of the annular tooth groove 506 by moving the movable sleeve 503. When the second steering mechanism is needed to perform steering operation for driving in water, the second connecting gear 507 is meshed with the third connecting gear 508 by moving the movable sleeve 503 in the opposite direction. This ensures the independence of the operation of the first steering mechanism and the second steering mechanism. At the same time, the first steering mechanism and the second steering mechanism can be mechanically adjusted by moving the movable sleeve 503, thus avoiding the phenomenon that electronic adjustment is prone to failure and ensuring the stability of the operation of the steering switching device.

[0035] The first steering mechanism includes a first movable rod 103, a linear tooth groove 102 is provided at the top of the first movable rod 103, a helical gear 101 is meshed at the top of the linear tooth groove 102, first connecting rods 104 are provided at both ends of the first movable rod 103, both ends of the first movable rod 103 are fixedly connected with ball bushings 108, one end of the first connecting rod 104 is fixedly connected with an inner ball seat 109, the inner ball seat 109 is movably arranged on the inner wall of the ball bushing 108, the other end of the first connecting rod 104 is fixedly connected with a second connecting rod 107, a steering knuckle 105 is provided on one side of the second connecting rod 107, the outer wall of the steering knuckle 105 is fixedly connected with a first connecting strip 106, and the second connecting rod 107 is fixedly connected with a first connecting strip 106. The first movable rod 103 is rotatably connected to the first connecting strip 106, and the outer wall of the first movable rod 103 is sleeved with a shell 110. Both ends of the shell 110 are fixedly connected with dust covers 111. The dust covers 111 are opposite to the ball bushing 108. The top of the shell 110 is fixedly connected with a connecting cover 112. The bevel gear 101 is arranged inside the connecting cover 112. The bottom end of the shell 110 is threadedly connected with an extrusion bolt 113. The top of the extrusion bolt 113 is provided with a first spring 114. The top of the first spring 114 is provided with an extrusion seat 115. The extrusion seat 115 is arranged at the bottom end of the first movable rod 103. The back side of the box body 301 is rotatably connected with the first main shaft 302. The outer wall of the first main shaft 302 is fixedly sleeved with a fixing ring 504. A connecting gear 505 is fixedly sleeved on the outer wall of the fixing ring 504, one end of the first main shaft 302 is fixedly connected to the second universal joint 303, one end of the second universal joint 303 is fixedly connected to the fifth connecting rod 304, one end of the fifth connecting rod 304 is fixedly connected to the third universal joint 305, one end of the third universal joint 305 is fixedly connected to the sixth connecting rod 306, one end of the sixth connecting rod 306 is fixedly connected to the fourth universal joint 307, one end of the fourth universal joint 307 is fixedly connected to the seventh connecting rod 308, the seventh connecting rod 308 is connected to the bevel gear 101, the first connecting gear 505 rotates to drive the fixing ring 504 to rotate, the fixing ring 504 rotates to drive the first main shaft 302 to rotate, and the first main shaft 30 The fifth connecting rod 304 is driven to rotate through the second universal joint 303, the fifth connecting rod 304 drives the sixth connecting rod 306 to rotate through the third universal joint 305, the sixth connecting rod 306 rotates and drives the seventh connecting rod 308 to rotate through the connection with the fourth universal joint 307, so as to drive the steering knuckle 105 to rotate, the helical gear 101 rotates and meshes with the linear tooth groove 102, so as to drive the first movable rod 103 to move, the first movable rod 103 moves and drives the steering knuckle 105 to rotate around the connection between the first connecting bar 106 and the second connecting rod 107 through the connection of the ball head bushing 108, the inner ball head seat 109, the first connecting rod 104 and the second connecting rod 107, so as to complete the steering operation of the steering knuckle 105.

[0036] The second rotating mechanism includes an output shaft 201, a second connecting bar 202 and a guide cover 205. The front of the output shaft 201 is fixedly connected with an external thread block 203. The front of the second connecting bar 202 is provided with an internal thread hole 204. The outer wall of the external thread block 203 is meshed with the inner wall of the internal thread hole 204. The front of the second connecting bar 202 is rotatably provided with a third connecting bar 206. One end of the third connecting bar 206 is rotatably connected with the outer wall of the guide cover 205. The inner wall of the guide cover 205 is interspersed with a fixing seat 207. The outer wall of the fixed seat 207 is rotatably connected to the third connecting rod 208, one end of the third connecting rod 208 is fixedly connected to the blade 209 located inside the fixed seat 207, the other end of the third connecting rod 208 is provided with a first universal joint 212, one end of the first universal joint 212 is fixedly connected to the fourth connecting rod 211, one end of the fourth connecting rod 211 is fixedly connected to the connecting plate 210, the back side of the box body 301 is rotatably connected to the second main shaft 401, the third connecting gear 508 is fixedly sleeved on the outer wall of the second main shaft 401, and the third connecting gear 508 is fixedly sleeved on the outer wall of the second main shaft 401. One end of the second main shaft 401 is fixedly connected to the sixth universal joint 402, one end of the sixth universal joint 402 is fixedly connected to the eighth connecting rod 400, one end of the eighth connecting rod 400 is fixedly connected to the seventh universal joint 403, one end of the seventh universal joint 403 is fixedly connected to the ninth connecting rod 404, an eighth universal joint 405 is arranged between the ninth connecting rod 404 and the output shaft 201, the third connecting gear 508 rotates to drive the second main shaft 401 to rotate, and the second main shaft 401 rotates to drive the eighth connecting rod through the sixth universal joint 402 400 rotates, the eighth connecting rod 400 rotates through the seventh universal joint 403 to drive the ninth connecting rod 404 to rotate, the ninth connecting rod 404 rotates through the eighth universal joint 405 to drive the output shaft 201 to rotate, the output shaft 201 rotates through the engagement of the external thread block 203 and the internal thread hole 204 to drive the second connecting bar 202 to rotate, and the guide cover 205 can be deflected through the connection of the third connecting bar 206, thereby changing the direction of the guide cover 205, so that the direction of the amphibious vehicle in the water can be adjusted.

[0037] Among them, the front side of the box body 301 is rotatably connected with an operating shaft 501, one end of the operating shaft 501 is provided with a steering wheel 502, the inner wall of the first main shaft 302 is provided with a socket 500, the outer wall of the operating shaft 501 is movably connected with the inner wall of the socket 500, and an adjustment mechanism is provided between the operating shaft 501 and the movable sleeve 503, the adjustment mechanism includes a central hole groove 601 provided inside the operating shaft 501, the inner wall of the central hole groove 601 is movably connected with a second movable rod 602, the outer wall of the operating shaft 501 is provided with a plurality of first sliding grooves 603, the interior of the first sliding groove 603 is connected with the interior of the central hole groove 601, the inner wall of the movable sleeve 503 is fixedly connected with a plurality of first sliding blocks 604, the outer wall of the first sliding block 604 is connected with the first sliding groove 6 03 is slidably connected to the inner wall of the first slider 604 is fixedly connected to the outer wall of the second movable rod 602, the outer wall of the operating shaft 501 is sleeved with a movable ring 606 located on the outside of the box body 301, the outer wall of the operating shaft 501 is symmetrically provided with a second slide groove 605, the temporal part of the second slide groove 605 is communicated with the inside of the central hole groove 601, the inner wall of the movable ring 606 is symmetrically fixedly connected with a second slider 607, the outer wall of the second slider 607 is slidably connected to the inner wall of the second slide groove 605, the second slide groove 605 is fixedly connected to the outer wall of the second movable rod 602, the inner wall of the movable ring 606 is symmetrically provided with movable holes 608, the inner wall of the movable hole 608 is movably interlaced with a positioning rod 609, and the outer wall of the operating shaft 501 is provided with a plurality of positioning holes 610 The outer wall of the positioning rod 609 is movably connected with the inner wall of the positioning hole 610, and the inner wall of the movable hole 608 is provided with an active cavity 611. The inner wall of the movable cavity 611 is slidably connected with a limiting ring 612, and the limiting ring 612 is fixedly sleeved on the outer wall of the positioning rod 609. A second spring 613 is provided between the limiting ring 612 and the inner wall of the movable cavity 611. A connecting hole 614 is provided on the inner wall of the movable cavity 611. One end of the positioning rod 609 passes through the interior of the connecting hole 614 and is fixedly connected with a connecting plate 615. The outer wall of the connecting plate 615 is fixedly connected with a pull ring 616. The steering wheel 502 is arranged in the cockpit of the amphibious vehicle. The steering wheel 502 is rotated to drive the operating shaft 501 to rotate, and the plurality of first sliding grooves 603 are used to adjust the plurality of first sliders 614. 04, so that the operating shaft 501 can rotate to drive the movable sleeve 503 to rotate, so that the steering wheel 502 can stably operate the first steering mechanism and the second steering mechanism. When the working state of the first steering mechanism and the second steering mechanism needs to be adjusted, the movable ring 606 moves on the outer wall of the operating shaft 501, and the movable ring 606 moves through the connection of the second slider 607 to move the second movable rod 602. The second movable rod 602 moves through the connection of the first slider 604 to drive the movable sleeve 503 to move until the first connecting gear 505 is engaged with the inner wall of the annular tooth groove 506 or the outer wall of the second connecting gear 507 is engaged with the outer wall of the third connecting gear 508. When the movable sleeve 503 moves to the desired position,Through the elastic action of the second spring 613, the limiting ring 612 drives the positioning rod 609 to move, so that the positioning rod 609 passes through the movable hole 608 and is inserted into the inner wall of the corresponding positioning hole 610, so that the moving ring 606 can be positioned on the outer wall of the operating shaft 501, thereby positioning the moving sleeve 503, so that the first steering mechanism and the second steering mechanism can work stably and independently.

[0038] The inner wall of the box body 301 is fixedly connected to an oil box 701, an extrusion mechanism is arranged inside the box body 301, an oil groove 702 is arranged on the inner wall of the oil box 701, a first one-way valve 704 is arranged on the inner wall of the oil box 701, a connecting pipe is fixedly connected to the outer wall of the oil box 701, the connecting pipe runs through the box body 301 and extends to the outside of the box body 301, a first connecting groove 703 is arranged on the inner wall of the oil groove 702, a second connecting groove 705 is arranged on the inner wall of the first connecting groove 703, a first oil injection hole 706 is arranged on the inner wall of the second connecting groove 705, and a first oil injection hole 706 is arranged on the inner wall of the first oil injection hole 706. The second one-way valve 707 is opposite to the third connecting gear 508, and the extrusion mechanism includes a connecting box 708 fixedly connected to the inner wall of the oil box 701, a connecting chamber 709 is provided between the connecting box 708 and the oil groove 702, a piston plate 710 is slidably connected to the inner wall of the connecting chamber 709, a third spring 711 is provided between the piston plate 710 and the inner wall of the connecting chamber 709, a connecting hole 713 is provided on the inner wall of the connecting chamber 709, and a second extrusion block 714 is fixedly connected to the outer wall of the piston plate 710 away from the third spring 711, and the second extrusion block 714 is inserted in the connecting hole 713. 3, the inner wall of the movable sleeve 503 is fixedly connected with a first extrusion block 712, the first extrusion block 712 is opposite to the second extrusion block 714, the inner wall of the first communicating groove 703 may also have a second oil outlet, the second oil outlet is provided with a third one-way valve inside, the third one-way valve is opposite to the first connecting gear 505, the connecting pipe is connected to the external oil supply equipment, the movable sleeve 503 moves to drive the first extrusion block 712 to move, the first extrusion block 712 moves and contacts with the second extrusion block 714, so that the second extrusion block 714 is squeezed to drive the piston plate 710 to move, and the piston plate 710 moves to drive the first one-way valve 712 to move. The three springs 711 are compressed so that the lubricating oil in the oil groove 702 is pressed into the first connecting groove 703, and then sprayed to the outer wall of the third connecting gear 508 and the first connecting gear 505 through the second one-way valve 707 and the third one-way valve, thereby lubricating the connection between the first steering mechanism and the second steering mechanism. When the first extrusion block 712 no longer squeezes the second extrusion block 714, the piston plate 710 can move in the opposite direction under the elastic action of the third spring 711, so that the lubricating oil in the external oil supply device enters the oil groove 702 through the connecting pipe and the first one-way valve 704.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steering switching device, characterized in that: include: a first steering mechanism, wherein the first steering mechanism is used for steering the vehicle when it is traveling on land; a second steering mechanism, the second steering mechanism being used for steering the vehicle when traveling on water; A switching mechanism, the switching mechanism is used for switching between a first steering mechanism and a second steering mechanism, the switching mechanism comprises a box (301), a first connecting gear (505) is arranged inside the box (301), the first connecting gear (505) is connected to the first steering mechanism, a third connecting gear (508) is arranged inside the box (301), the third connecting gear (508) is connected to the second steering mechanism, a movable sleeve (503) is movably arranged inside the box (301), an annular tooth groove (506) is provided on the inner wall of the movable sleeve (503), and a second connecting gear (507) is fixedly sleeved on the outer wall of the movable sleeve (503).

2. A steering switching device according to claim 1, characterized in that: The first steering mechanism comprises a first movable rod (103), a top end of the first movable rod (103) is provided with a linear tooth groove (102), a top end of the linear tooth groove (102) is meshed with a helical gear (101), first connecting rods (104) are provided at both ends of the first movable rod (103), both ends of the first movable rod (103) are fixedly connected with ball head bushings (108), one end of the first connecting rod (104) is fixedly connected with an inner ball head seat (109), the inner ball head seat (109) is movably arranged on the inner wall of the ball head bushing (108), the other end of the first connecting rod (104) is fixedly connected with a second connecting rod (107), a steering knuckle (105) is provided on one side of the second connecting rod (107), the outer wall of the steering knuckle (105) is fixedly connected with a first connecting strip (106), and the second connecting rod (107) is rotatably connected to the first connecting strip (106).

3. A steering switching device according to claim 2, characterized in that: The outer wall of the first movable rod (103) is provided with a shell (110), and both ends of the shell (110) are fixedly connected with dust covers (111), and the dust covers (111) are opposite to the ball head bushing (108). The top of the shell (110) is fixedly connected with a connecting cover (112), and the bevel gear (101) is arranged inside the connecting cover (112). The bottom end of the shell (110) is threadedly connected with an extrusion bolt (113), and the top end of the extrusion bolt (113) is provided with a first spring (114), and the top end of the first spring (114) is provided with an extrusion seat (115), and the extrusion seat (115) is arranged at the bottom end of the first movable rod (103).

4. A steering switching device according to claim 3, characterized in that: The second rotating mechanism comprises an output shaft (201), a second connecting bar (202) and a guide cover (205); the front side of the output shaft (201) is fixedly connected with an external thread block (203); the front side of the second connecting bar (202) is provided with an internal thread hole (204); the outer wall of the external thread block (203) is meshedly connected with the inner wall of the internal thread hole (204); the front side of the second connecting bar (202) is rotatably provided with a third connecting bar (206); one end of the third connecting bar (206) is rotatably connected with the outer wall of the guide cover (205) A fixing seat (207) is inserted into the inner wall of the guide cover (205), and a third connecting rod (208) is rotatably connected to the outer wall of the fixing seat (207), and a blade (209) is fixedly connected to one end of the third connecting rod (208) and located inside the fixing seat (207), and a first universal joint (212) is provided at the other end of the third connecting rod (208), and one end of the first universal joint (212) is fixedly connected to a fourth connecting rod (211), and one end of the fourth connecting rod (211) is fixedly connected to a connecting disk (210).

5. A steering switching device according to claim 4, characterized in that: The back side of the box body (301) is rotatably connected to a first main shaft (302); a fixing ring (504) is fixedly sleeved on the outer wall of the first main shaft (302); the first connecting gear (505) is fixedly sleeved on the outer wall of the fixing ring (504); one end of the first main shaft (302) is fixedly connected to a second universal joint (303); one end of the second universal joint (303) is fixedly connected to a fifth connecting rod (304); one end of the fifth connecting rod (304) is fixedly connected to a third universal joint (305); one end of the third universal joint (305) is fixedly connected to a sixth connecting rod (306); one end of the sixth connecting rod (306) is fixedly connected to a fourth universal joint (307); one end of the fourth universal joint (307) is fixedly connected to a seventh connecting rod (308); the seventh connecting rod (308) is connected to the bevel gear (101).

6. A steering switching device according to claim 5, characterized in that: The back side of the box body (301) is rotatably connected to the second main shaft (401), the third connecting gear (508) is fixedly sleeved on the outer wall of the second main shaft (401), one end of the second main shaft (401) is fixedly connected to the sixth universal joint (402), one end of the sixth universal joint (402) is fixedly connected to the eighth connecting rod (400), one end of the eighth connecting rod (400) is fixedly connected to the seventh universal joint (403), one end of the seventh universal joint (403) is fixedly connected to the ninth connecting rod (404), and an eighth universal joint (405) is arranged between the ninth connecting rod (404) and the output shaft (201).

7. A steering switching device according to claim 6, characterized in that: The front side of the box body (301) is rotatably connected to an operating shaft (501), one end of the operating shaft (501) is provided with a steering wheel (502), the inner wall of the first main shaft (302) is provided with a plug hole (500), the outer wall of the operating shaft (501) is movably connected with the inner wall of the plug hole (500), and an adjustment mechanism is provided between the operating shaft (501) and the movable sleeve (503).

8. A steering switching device according to claim 7, characterized in that: The adjusting mechanism comprises a central hole groove (601) provided inside the operating shaft (501), the inner wall of the central hole groove (601) being movably connected with a second movable rod (602), the outer wall of the operating shaft (501) being provided with a plurality of first sliding grooves (603), the interior of the first sliding grooves (603) being connected with the interior of the central hole groove (601), the inner wall of the movable sleeve (503) being fixedly connected with a plurality of first sliding blocks (604), the outer wall of the first sliding block (604) being slidably connected with the inner wall of the first sliding groove (603), The first slider (604) is fixedly connected to the outer wall of the second movable rod (602); the outer wall of the operating shaft (501) is located outside the box body (301) and is sleeved with a movable ring (606); the outer wall of the operating shaft (501) is symmetrically provided with a second slide groove (605); the temporal part of the second slide groove (605) is connected to the inside of the central hole groove (601); the inner wall of the movable ring (606) is symmetrically fixedly connected with a second slider (607); the outer wall of the second slider (607) is connected to the second slide groove (605); 05), the second slide groove (605) is fixedly connected to the outer wall of the second movable rod (602), the inner wall of the movable ring (606) is symmetrically provided with movable holes (608), the inner wall of the movable hole (608) is movably connected with a positioning rod (609), the outer wall of the operating shaft (501) is provided with a plurality of positioning holes (610), the outer wall of the positioning rod (609) is movably connected with the inner wall of the positioning hole (610), the inner wall of the movable hole (608) is provided with a movable cavity (611), The inner wall of the movable cavity (611) is slidably connected to a limit ring (612), and the limit ring (612) is fixedly sleeved on the outer wall of the positioning rod (609). A second spring (613) is arranged between the limit ring (612) and the inner wall of the movable cavity (611). A connecting hole (614) is opened on the inner wall of the movable cavity (611). One end of the positioning rod (609) passes through the interior of the connecting hole (614) and is fixedly connected to a connecting plate (615), and the outer wall of the connecting plate (615) is fixedly connected to a pull ring (616).

9. A steering switching device according to claim 8, characterized in that: The inner wall of the box body (301) is fixedly connected to an oil box (701), and an extrusion mechanism is arranged inside the box body (301). The inner wall of the oil box (701) is provided with an oil groove (702), and the inner wall of the oil groove (702) is provided with a first one-way valve (704). The outer wall of the oil box (701) is fixedly connected to a connecting pipe, and the connecting pipe passes through the box body (301) and extends to the outside of the box body (301). The inner wall of the oil groove (702) is provided with a first connecting groove (703), and the inner wall of the first connecting groove (703) is connected with a second connecting groove (705). The inner wall of the second connecting groove (705) is provided with a first oil injection hole (706), and the inner wall of the first oil injection hole (706) is provided with a second one-way valve (707). The second one-way valve (707) is opposite to the third connecting gear (508).

10. A steering switching device according to claim 9, characterized in that: The extrusion mechanism comprises a connection box (708) fixedly connected to the inner wall of the oil box (701); a connection chamber (709) is provided between the connection box (708) and the oil groove (702); a piston plate (710) is slidably connected to the inner wall of the connection chamber (709); a third spring (711) is provided between the piston plate (710) and the inner wall of the connection chamber (709); a connection hole (713) is provided on the inner wall of the connection chamber (709); a second extrusion block (714) is fixedly connected to the outer wall of the piston plate (710) away from the third spring (711); the second extrusion block (714) is inserted into the inner wall of the connection hole (713); a first extrusion block (712) is fixedly connected to the inner wall of the movable sleeve (503); the first extrusion block (712) and the second extrusion block (714) are opposite in position.

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