A steering switching device

Abstract

The application discloses a kind of steering switching devices, including first steering mechanism, second steering mechanism and switching mechanism, switching mechanism includes box, the inside of box is provided with first connecting gear, the inside of box is provided with third connecting gear, the inside of box is movably provided with moving sleeve, the inner wall of moving sleeve is opened with annular tooth slot, the outer wall of moving sleeve is fixed with second connecting gear with sleeve interface.The present application is provided with switching mechanism, by moving sleeve movement makes that first connecting gear is engaged with the inner wall of annular tooth slot and by moving sleeve reverse movement makes that second connecting gear is engaged with third connecting gear, namely, guarantee the independence of first steering mechanism and second steering mechanism work, simultaneously by moving sleeve movement can be mechanically adjusted to first steering mechanism and second steering mechanism, avoid the phenomenon that electronic adjustment is prone to failure, guarantee the stability of steering switching device work.

Description

Technical Field

[0001] This invention relates to the field of steering switching technology, and in particular to a steering switching device. Background Technology

[0002] An amphibious vehicle is a multi-functional means of transportation that can travel on both land and water.

[0003] The steering controllers used for land travel and water travel in amphibious vehicles are different. That is, when switching between different modes of travel, the steering control of the amphibious vehicle needs to be adjusted in order to move.

[0004] However, most amphibious vehicles currently adjust their steering control electronically. But electronic control is affected by the environment and internal circuits. If the electronic signal transmission is unstable, the steering control cannot be adjusted stably. Therefore, we propose a steering switching device. Summary of the Invention

[0005] The purpose of this invention is to provide a steering switching device to solve the problems mentioned in the background art.

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

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

[0008] The second steering mechanism is used for steering the vehicle when it is traveling on water.

[0009] A switching mechanism is provided for switching between a first steering mechanism and a second steering mechanism. The switching mechanism includes a housing, inside which a first connecting gear is provided and connected to the first steering mechanism. Inside the housing, a third connecting gear is provided and connected to the second steering mechanism. Inside the housing, a movable sleeve is movably arranged. The inner wall of the movable sleeve has an annular toothed groove, and the outer wall of the movable sleeve is fixedly fitted with the second connecting gear.

[0010] Preferably, the first steering mechanism comprises a first movable rod, a straight tooth slot is formed at the top end of the first movable rod, a bevel gear is arranged at the top end of the straight tooth slot, first connecting rods are arranged at both ends of the first movable rod, ball head bushings are fixedly connected to both ends of the first movable rod, an inner ball head seat is fixedly connected to one end of the first connecting rod, the inner ball head seat is movably arranged on the inner wall of the ball head bushing, a second connecting rod is fixedly connected to the other end of the first connecting rod, a steering knuckle is arranged on one side of the second connecting rod, a first connecting strip is fixedly connected to the outer wall of the steering knuckle, and the second connecting rod and the first connecting strip are rotationally connected.

[0011] Preferably, a shell is arranged on the outer wall of the first movable rod, dustproof sleeves are fixedly connected to both ends of the shell, the dustproof sleeves are opposite to the ball head bushings in position, a connecting cover is fixedly connected to the top end of the shell, the bevel gear is arranged in the connecting cover, an extrusion bolt is threadedly connected to the bottom end of the shell, a first spring is arranged at the top end of the extrusion bolt, an extrusion seat is arranged at the top end of the first spring, and the extrusion seat is arranged at the bottom end of the first movable rod.

[0012] Preferably, the second steering mechanism comprises an output shaft, a second connecting strip and a guide cover, an external thread block is fixedly connected to the front surface of the output shaft, an internal thread hole is formed in the front surface of the second connecting strip, the outer wall of the external thread block is movably connected with the inner wall of the internal thread hole, a third connecting strip is rotationally arranged on the front surface of the second connecting strip, one end of the third connecting strip is rotationally connected with the outer wall of the guide cover, a fixing seat is insertedly arranged on the inner wall of the guide cover, a third connecting rod is rotationally connected to the outer wall of the fixing seat, a blade is fixedly connected to one end of the third connecting rod and located in the fixing seat, a first universal joint is arranged at the other end of the third connecting rod, a fourth connecting rod is fixedly connected to one end of the first universal joint, and a connecting disc is fixedly connected to one end of the fourth connecting rod.

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

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

[0015] Preferably, an operating shaft is rotatably connected to the front of the housing, a steering wheel is provided at one end of the operating shaft, an insertion hole is provided on the inner wall of the first main shaft, the outer wall of the operating shaft is movably connected to the inner wall of the insertion hole, and an adjustment mechanism is provided between the operating shaft and the movable sleeve.

[0016] Preferably, the adjusting mechanism includes a central slot formed inside the operating shaft, with a second movable rod movably connected to the inner wall of the central slot. The outer wall of the operating shaft has multiple first sliding grooves, the interior of which communicates with the interior of the central slot. The inner wall of the movable sleeve is fixedly connected to multiple first sliders, the outer walls of which are slidably connected to the inner walls of the first sliding grooves. The first sliders are fixedly connected to the outer wall of the second movable rod. A movable ring is sleeved on the outer wall of the operating shaft, located outside the housing. The outer wall of the operating shaft has symmetrically formed second sliding grooves, the temporal portion of which communicates with the interior of the central slot. The inner wall of the movable ring is symmetrically fixedly connected to second sliders. 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 holes is movably inserted with a positioning rod, the outer wall of the operating shaft is provided with multiple positioning holes, the outer wall of the positioning rod is movably inserted 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 limit ring, the limit ring is fixedly sleeved on the outer wall of the positioning rod, a second spring is provided between the limit 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, the outer wall of the connecting plate is fixedly connected with a pull ring.

[0017] Preferably, an oil passage box is fixedly connected to the inner wall of the housing, a squeezing mechanism is provided inside the housing, an oil groove is formed on the inner wall of the oil passage box, a first one-way valve is provided on the inner wall of the oil groove, a connecting pipe is fixedly connected to the outer wall of the oil passage box, the connecting pipe passes through the housing and extends to the outside of the housing, a first connecting groove is formed 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 formed 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 positioned 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 cavity formed between the connecting box and the oil tank, a piston plate slidably connected to the inner wall of the connecting cavity, a third spring provided between the piston plate and the inner wall of the connecting cavity, a connecting hole formed on the inner wall of the connecting cavity, a second extrusion block fixedly connected to the outer wall of the piston plate away from the third spring, the second extrusion block being inserted into the inner wall of the connecting hole, and a first extrusion block fixedly connected to the inner wall of the movable sleeve, the first extrusion block and the second extrusion block being positioned opposite each other.

[0019] The technical effects and advantages of this invention are as follows:

[0020] This invention utilizes a switching mechanism. When the first steering mechanism is needed for land-based steering, the first connecting gear engages with the inner wall of the annular tooth groove by moving the movable sleeve. When the second steering mechanism is needed for water-based steering, the second connecting gear engages with the third connecting gear by moving the movable sleeve in the opposite direction. This ensures the independence of the operation of the first and second steering mechanisms. At the same time, the movement of the movable sleeve allows for mechanical adjustment of the first and second steering mechanisms, avoiding the malfunctions that are common with electronic adjustments and ensuring the stability of the steering switching device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the first steering mechanism of the present invention.

[0023] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at point A.

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

[0025] Figure 5 This is a three-dimensional structural diagram of the second steering mechanism of the present invention.

[0026] Figure 6 This is a three-dimensional structural diagram of the third connecting strip of the present invention.

[0027] Figure 7 This is a top-view cross-sectional structural diagram of the switching mechanism of the present invention.

[0028] Figure 8 This is a schematic cross-sectional view of the moving ring structure of the present invention.

[0029] Figure 9 For the present invention Figure 7A local enlarged structure schematic view at C of figure 1.

[0030] Figure 10 The application Figure 7 A local enlarged structure schematic view at B of figure 1.

[0031] In the figure: 101, bevel gear; 102, straight tooth slot; 103, first movable rod; 104, first connecting rod; 105, knuckle; 106, first connecting strip; 107, second connecting rod; 108, ball head bushing; 109, inner ball head seat; 110, shell; 111, dust cover; 112, connecting cover; 113, extrusion bolt; 114, first spring; 115, extrusion seat; 201, output shaft; 202, second connecting strip; 203, outer threaded block; 204, inner threaded hole; 205, guide cover; 206, third connecting strip; 207, fixed seat; 208, third connecting rod; 209, blade; 210, connecting disc; 211, fourth connecting rod; 212, first universal joint; 301, box body; 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; 404, ninth connecting rod; 405, eighth universal joint; 500, jack; 501, operation shaft; 502, steering wheel; 503, moving sleeve; 504, fixed ring; 505, first connecting gear; 506, annular tooth slot; 507, second connecting gear; 508, third connecting gear; 601, center hole slot; 602, second movable rod; 603, first sliding slot; 604, first sliding block; 605, second sliding slot; 606, moving ring; 607, second sliding block; 608, movable hole; 609, positioning rod; 610, positioning hole; 611, movable cavity; 612, limiting ring; 613, second spring; 614, communication hole; 615, connecting plate; 616, pull ring; 701, oil passing box; 702, oil groove; 703, first communication slot; 704, first one-way valve; 705, second communication slot; 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] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0033] The present application provides a steering switching device as shown in Figures 1-10 The present application provides a steering switching device as shown in

[0034] The switching mechanism is used for switching the first steering mechanism and the second steering mechanism, the switching mechanism comprises a box body 301, the inside of the box body 301 is provided with a first connecting gear 505, the first connecting gear 505 is connected with the first steering mechanism, the inside of the box body 301 is provided with a third connecting gear 508, the third connecting gear 508 is connected with the second steering mechanism, the inside of the box body 301 is movably provided with a moving sleeve 503, the inner wall of the moving sleeve 503 is provided with an annular gear slot 506, the outer wall of the moving sleeve 503 is fixedly sleeved with a second connecting gear 507, when the first steering mechanism needs to be used for steering operation on land, the first connecting gear 505 is meshed with the inner wall of the annular gear slot 506 by moving the moving sleeve 503, when the second steering mechanism needs to be used for steering operation in water, the second connecting gear 507 is meshed with the third connecting gear 508 by reversely moving the moving sleeve 503, the independence of the first steering mechanism and the second steering mechanism is ensured, the first steering mechanism and the second steering mechanism can be mechanically adjusted by moving the moving sleeve 503, the phenomenon that the electronic adjustment is prone to failure is avoided, and the stability of the steering switching device is ensured.

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

[0036] The second steering mechanism comprises an output shaft 201, a second connecting strip 202 and a guide cover 205. The front surface of the output shaft 201 is fixedly connected with an external thread block 203. The front surface of the second connecting strip 202 is provided with an internal thread hole 204. The outer wall of the external thread block 203 is in meshing connection with the inner wall of the internal thread hole 204. The front surface of the second connecting strip 202 is rotatably provided with a third connecting strip 206. One end of the third connecting strip 206 is rotatably connected with the outer wall of the guide cover 205. The inner wall of the guide cover 205 is penetratingly provided with a fixing seat 207. The outer wall of the fixing seat 207 is rotatably connected with a third connecting rod 208. One end of the third connecting rod 208 and located inside the fixing seat 207 is fixedly connected with a blade 209. 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 with a fourth connecting rod 211. One end of the fourth connecting rod 211 is fixedly connected with a connecting disc 210. The back surface of the box body 301 is rotatably connected with a 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 with a sixth universal joint 402. One end of the sixth universal joint 402 is fixedly connected with an eighth connecting rod 400. One end of the eighth connecting rod 400 is fixedly connected with a seventh universal joint 403. One end of the seventh universal joint 403 is fixedly connected with a ninth connecting rod 404. The eighth connecting rod 400 is rotatably connected with the ninth connecting rod 404 through the seventh universal joint 403. The eighth connecting rod 400 is rotatably connected with the output shaft 201 through the eighth universal joint 405. The third connecting gear 508 drives the second main shaft 401 to rotate. The second main shaft 401 drives the eighth connecting rod 400 to rotate through the sixth universal joint 402. The eighth connecting rod 400 drives the ninth connecting rod 404 to rotate through the seventh universal joint 403. The ninth connecting rod 404 drives the output shaft 201 to rotate through the eighth universal joint 405. The output shaft 201 drives the second connecting strip 202 to rotate through the meshing of the external thread block 203 and the internal thread hole 204. Through the connection of the third connecting strip 206, the guide cover 205 is deflected, so that the direction of the guide cover 205 is changed, and the direction of the amphibious vehicle driving in water is adjusted.

[0037] The front of the box 301 is rotationally connected with an operation shaft 501, one end of the operation shaft 501 is provided with a steering wheel 502, the inner wall of the first main shaft 302 is provided with a insertion hole 500, the outer wall of the operation shaft 501 is movably inserted into the inner wall of the insertion hole 500, the adjusting mechanism is arranged between the operation shaft 501 and the moving sleeve 503, the adjusting mechanism comprises a center hole groove 601 arranged in the operation shaft 501, the inner wall of the center hole groove 601 is movably inserted with a second movable rod 602, the outer wall of the operation shaft 501 is provided with a plurality of first sliding grooves 603, the inner part of the first sliding groove 603 is communicated with the inner part of the center hole groove 601, the inner wall of the moving sleeve 503 is fixedly connected with a plurality of first sliding blocks 604, the outer wall of the first sliding block 604 is slidably connected with the inner wall of the first sliding groove 603, the first sliding block 604 is fixedly connected to the outer wall of the second movable rod 602, the outer wall of the operation shaft 501 and outside the box 301 is sleeved with a moving ring 606, the outer wall of the operation shaft 501 is symmetrically provided with a second sliding groove 605, the temple of the second sliding groove 605 is communicated with the inner part of the center hole groove 601, the inner wall of the moving ring 606 is symmetrically fixedly connected with a second sliding block 607, the outer wall of the second sliding block 607 is slidably connected with the inner wall of the second sliding groove 605, the second sliding groove 605 is fixedly connected to the outer wall of the second movable rod 602, the inner wall of the moving ring 606 is symmetrically provided with a movable hole 608, the inner wall of the movable hole 608 is movably inserted with a positioning rod 609, the outer wall of the operation shaft 501 is provided with a plurality of positioning holes 610, the outer wall of the positioning rod 609 is movably inserted into 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 with a limiting ring 612, the limiting ring 612 is fixedly sleeved on the outer wall of the positioning rod 609, the second spring 613 is arranged between the limiting ring 612 and the inner wall of the movable cavity 611, the inner wall of the movable cavity 611 is provided with a communication hole 614, one end of the positioning rod 609 penetrates through the inner part of the communication 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 operation shaft 501 is driven to rotate through the rotation of the steering wheel 502, the operation shaft 501 is driven to rotate by limiting the plurality of first sliding blocks 604 through the plurality of first sliding grooves 603, so that the moving sleeve 503 is driven to rotate, so that the steering wheel 502 can stably operate the first steering mechanism and the second steering mechanism, when it is needed to adjust the working state of the first steering mechanism and the second steering mechanism, the moving ring 606 is moved on the outer wall of the operation shaft 501, the moving ring 606 is moved through the connection of the second sliding block 607, so that the second movable rod 602 is moved, the second movable rod 602 is moved through the connection of the first sliding block 604, so that the moving sleeve 503 is moved, until the first connecting gear 505 is engaged with the inner wall of the annular gear slot 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 moving sleeve 503 is moved to the required position,Through the elastic effect of the second spring 613, the limiting ring 612 drives the positioning rod 609 to move, so that the positioning rod 609 penetrates through the movable hole 608 and is inserted into the inner wall of the corresponding positioning hole 610, that is, the movable ring 606 is positioned on the outer wall of the operation shaft 501, so that the movable sleeve 503 is positioned, so that the first steering mechanism and the second steering mechanism can stably and independently work.

[0038] Wherein, the inner wall of the box 301 is fixedly connected with the oil passing box 701, the inside of the box 301 is provided with the extrusion mechanism, the inner wall of the oil passing box 701 is provided with the oil groove 702, the inner wall of the oil groove 702 is provided with the first check valve 704, the outer wall of the oil passing box 701 is fixedly connected with the connecting pipe, the connecting pipe penetrates through the box 301 and extends to the outside of the box 301, the inner wall of the oil groove 702 is provided with the first communication groove 703, the inner wall of the first communication groove 703 is provided with the second communication groove 705, the inner wall of the second communication groove 705 is provided with the first oil injection hole 706, the inner wall of the first oil injection hole 706 is provided with the second check valve 707, the second check valve 707 is opposite to the third connecting gear 508 in position, the extrusion mechanism comprises the connecting box 708 fixedly connected to the inner wall of the oil passing box 701, the connecting box 708 and the oil groove 702 are provided with the connecting cavity 709, the inner wall of the connecting cavity 709 is slidably connected with the piston plate 710, the third spring 711 is arranged between the inner wall of the connecting cavity 709 and the piston plate 710, the inner wall of the connecting cavity 709 is provided with the connecting hole 713, the outer wall of the piston plate 710 away from the third spring 711 is fixedly connected with the second extrusion block 714, the second extrusion block 714 is inserted into the inner wall of the connecting hole 713, the inner wall of the movable sleeve 503 is fixedly connected with the first extrusion block 712, the first extrusion block 712 is opposite to the second extrusion block 714 in position, the inner wall of the first communication groove 703 can also have the second oil outlet hole, the second oil outlet hole is provided with the third check valve inside, the third check valve is opposite to the first connecting gear 505 in position, the connecting pipe is connected with 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 to contact the second extrusion block 714 to drive the second extrusion block 714 to move under extrusion, the piston plate 710 moves to drive the third spring 711 to compress, so that the lubricating oil in the oil groove 702 is pressed into the first communication groove 703, and then is sprayed out to the outer wall of the third connecting gear 508 and the first connecting gear 505 through the second check valve 707 and the third check valve, thereby lubricating the connection of the first steering mechanism and the second steering mechanism, when the first extrusion block 712 no longer extrudes the second extrusion block 714, the piston plate 710 reversely moves under the elastic effect of the third spring 711, so that the lubricating oil in the external oil supply equipment enters the oil groove 702 through the connecting pipe and the first check valve 704.

[0039] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steering switching device characterized by comprising: The utility model relates to a kind of amphibious vehicle, including: First steering mechanism, the first steering mechanism is used for steering when vehicle land travels; Second steering mechanism, the second steering mechanism is used for steering when vehicle water travels; Switching mechanism, the switching mechanism is used for the conversion of first steering mechanism and second steering mechanism, the inside of the box (301) is provided with first connecting gear (505), the first connecting gear (505) is connected with first steering mechanism, the inside of the box (301) is provided with third connecting gear (508), the third connecting gear (508) is connected with second steering mechanism, the inside of the box (301) is movably provided with moving sleeve (503), annular tooth slot (506) is opened in the inner wall of the moving sleeve (503), second connecting gear (507) is sleeved with on the outer wall of the moving sleeve (503); The inner wall of the box (301) is fixedly connected with oil passing box (701), the inside of the box (301) is provided with extrusion mechanism, oil groove (702) is opened in the inner wall of the oil passing box (701), first check valve (704) is arranged in the inner wall of the oil groove (702), connecting pipe is fixedly connected on the outer wall of the oil passing box (701), the connecting pipe penetrates box (301) and extends to the outside of box (301), first communication groove (703) is opened in the inner wall of the oil groove (702), second communication groove (705) is opened in the inner wall of the first communication groove (703), first oil injection hole (706) is opened in the inner wall of the second communication groove (705), second check valve (707) is arranged in the inner wall of the first oil injection hole (706), the second check valve (707) is opposite to third connecting gear (508) position; The extrusion mechanism includes connecting box (708) fixedly connected on the inner wall of the oil passing box (701), connecting cavity (709) is opened between the connecting box (708) and oil groove (702), piston plate (710) is slidably connected on the inner wall of the connecting cavity (709), third spring (711) is arranged between the piston plate (710) and the inner wall of the connecting cavity (709), connecting hole (713) is opened in the inner wall of the connecting cavity (709), second extrusion block (714) is fixedly connected on the outer wall of the piston plate (710) away from third spring (711), the second extrusion block (714) is inserted into the inner wall of connecting hole (713), first extrusion block (712) is fixedly connected on the inner wall of the moving sleeve (503), the first extrusion block (712) is opposite to second extrusion block (714) position.

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

3. A steering switching device according to claim 2, wherein A shell (110) is sleeved on the outer wall of the first movable rod (103), dust covers (111) are fixedly connected to both ends of the shell (110), the dust covers (111) are opposite to the ball head bushings (108) in position, a connecting cover (112) is fixedly connected to the top end of the shell (110), the bevel gear (101) is arranged in the connecting cover (112), an extrusion bolt (113) is threadedly connected to the bottom end of the shell (110), a first spring (114) is arranged at the top end of the extrusion bolt (113), an extrusion seat (115) is arranged at the top end of the first spring (114), 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, wherein The second steering mechanism comprises an output shaft (201), a second connecting strip (202) and a guide cover (205), an external thread block (203) is fixedly connected to the front surface of the output shaft (201), an internal thread hole (204) is formed in the front surface of the second connecting strip (202), the outer wall of the external thread block (203) is in meshing connection with the inner wall of the internal thread hole (204), a third connecting strip (206) is rotatably arranged on the front surface of the second connecting strip (202), one end of the third connecting strip (206) is rotatably connected with the outer wall of the guide cover (205), a fixing seat (207) is penetratingly arranged on the inner wall of the guide cover (205), a third connecting rod (208) is rotatably connected to the outer wall of the fixing seat (207), a blade (209) is fixedly connected to one end of the third connecting rod (208) and located in the interior of the fixing seat (207), a first universal joint (212) is arranged at the other end of the third connecting rod (208), a fourth connecting rod (211) is fixedly connected to one end of the first universal joint (212), and a connecting disc (210) is fixedly connected to one end of the fourth connecting rod (211).

5. A steering switching device according to claim 4, wherein The back of the box (301) is rotatably connected with a first main shaft (302), the outer wall of the first main shaft (302) is fixedly sleeved with a fixed ring (504), the first connecting gear (505) is fixedly sleeved on the outer wall of the fixed ring (504), one end of the first main shaft (302) is fixedly connected with a second universal joint (303), one end of the second universal joint (303) is fixedly connected with a fifth connecting rod (304), one end of the fifth connecting rod (304) is fixedly connected with a third universal joint (305), one end of the third universal joint (305) is fixedly connected with a sixth connecting rod (306), the sixth connecting rod (306) is fixedly connected with one end of a fourth universal joint (307), one end of the fourth universal joint (307) is fixedly connected with a seventh connecting rod (308), and the seventh connecting rod (308) is connected with the helical gear (101).

6. A steering switching device according to claim 5, wherein The back of the box (301) is rotatably connected with a 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 with a sixth universal joint (402), one end of the sixth universal joint (402) is fixedly connected with an eighth connecting rod (400), one end of the eighth connecting rod (400) is fixedly connected with a seventh universal joint (403), one end of the seventh universal joint (403) is fixedly connected with a ninth connecting rod (404), and the 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, wherein The front of the box (301) is rotatably connected with an operation shaft (501), one end of the operation shaft (501) is provided with a steering wheel (502), the inner wall of the first main shaft (302) is provided with a jack (500), the outer wall of the operation shaft (501) is movably and penetratingly connected with the inner wall of the jack (500), and the operation shaft (501) and the moving sleeve (503) are provided with an adjusting mechanism.

8. A steering switching device according to claim 7, characterized in that The adjusting mechanism includes a center hole slot (601) opened in the inside of the operation shaft (501), the inner wall of the center hole slot (601) movably penetrates and connects with a second movable rod (602), the outer wall of the operation shaft (501) is provided with a plurality of first sliding grooves (603), the inside of the first sliding groove (603) is communicated with the inside of the center hole slot (601), the inner wall of the moving sleeve (503) is fixedly connected with a plurality of first sliding blocks (604), the outer wall of the first sliding block (604) is slidably connected with the inner wall of the first sliding groove (603), the first sliding block (604) is fixedly connected to the outer wall of the second movable rod (602), the outer wall of the operation shaft (501) and outside the box (301) is sleeved with a moving ring (606), the outer wall of the operation shaft (501) is symmetrically provided with a second sliding groove (605), the temple of the second sliding groove (605) is communicated with the inside of the center hole slot (601), the inner wall of the moving ring (606) is fixedly connected with a second sliding block (607) symmetrically, the outer wall of the second sliding block (607) is slidably connected with the inner wall of the second sliding groove (605), the second sliding groove (605) is fixedly connected to the outer wall of the second movable rod (602), the inner wall of the moving ring (606) is symmetrically provided with a movable hole (608), the inner wall of the movable hole (608) movably penetrates and connects with a positioning rod (609), the outer wall of the operation shaft (501) is provided with a plurality of positioning holes (610), the outer wall of the positioning rod (609) movably penetrates and connects 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) slidably connects with a limiting ring (612), the limiting ring (612) is fixedly sleeved on the outer wall of the positioning rod (609), the second spring (613) is arranged between the limiting ring (612) and the inner wall of the movable cavity (611), the inner wall of the movable cavity (611) is provided with a communication hole (614), one end of the positioning rod (609) penetrates through the inside of the communication 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).

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