Turnover unfolding and folding vehicle-mounted leveling leg

Abstract

The utility model relates to a turnover unfolding and folding vehicle-mounted leveling leg, and belongs to the technical field of vehicle-mounted leveling. Comprising a connecting rod mechanism, a speed reducing mechanism, a transmission mechanism, a telescopic mechanism, a protection mechanism, a supporting mechanism, an unfolding limiting mechanism, a folding limiting mechanism and a control mechanism. The speed reducing mechanism is arranged below the connecting rod mechanism and hinged to the connecting rod mechanism, the transmission mechanism is arranged below the speed reducing mechanism and connected with the speed reducing mechanism, the telescopic mechanism is arranged on the transmission mechanism in a sleeving mode, the supporting mechanism is arranged on the telescopic mechanism in a sleeving mode, and the top end of the supporting mechanism is installed at the bottom end of the speed reducing mechanism. The side wall of the protection mechanism is connected with the connecting rod mechanism, and the unfolding limiting mechanism and the folding limiting mechanism are both installed on the connecting rod mechanism. According to the vehicle-mounted leveling leg, automatic overturning, unfolding and folding can be achieved while the vehicle-mounted leveling leg stretches out and draws back, the leveling leg is prevented from interfering with obstacles on the ground, and the all-terrain trafficability of the vehicle-mounted leveling leg is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle leveling technology, and in particular to a flip-up and retractable vehicle leveling leg. Background Technology

[0002] Current vehicle-mounted leveling legs are problematic when traversing uneven terrain with significant height differences, especially over rocky surfaces. While the tires can move smoothly, the leveling legs, due to their installation characteristics, cannot be rotated, hindering movement. Such leveling legs exhibit poor maneuverability and cannot meet all-terrain driving requirements. Even on surfaces with minor elevation changes, careful observation is necessary before proceeding, resulting in poor passability, prolonged travel time, and delays in mission execution. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a retractable vehicle-mounted leveling leg to solve the above-mentioned problem.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A flip-up and retractable vehicle-mounted leveling leg includes: a linkage mechanism, a deceleration mechanism, a transmission mechanism, a telescopic mechanism, a protection mechanism, a support mechanism, an unfolding limiting mechanism, a retracting limiting mechanism, and a control mechanism; the deceleration mechanism is disposed below the linkage mechanism and hinged to the linkage mechanism; the transmission mechanism is disposed below the deceleration mechanism and connected to the deceleration mechanism; the telescopic mechanism is sleeved on the transmission mechanism; the support mechanism is sleeved on the telescopic mechanism and its top end is installed at the bottom end of the deceleration mechanism; the protection mechanism is sleeved on the support mechanism and its top end abuts against the bottom end of the deceleration mechanism; the side wall of the protection mechanism is connected to the linkage mechanism; the unfolding limiting mechanism and the retracting limiting mechanism are both installed on the linkage mechanism; the deceleration mechanism, the unfolding limiting mechanism, and the retracting limiting mechanism are all connected to the control mechanism.

[0005] The beneficial effects of this utility model are: the interlocking design of the transmission mechanism, telescopic mechanism, protection mechanism and support mechanism is conducive to realizing the telescopic function of the leveling leg while minimizing the structural size. The deceleration mechanism and the linkage mechanism are hinged, which can realize automatic flipping and retraction while telescopic, thereby meeting the characteristics of off-road terrain transportation, avoiding interference between the leveling leg and obstacles on the ground, and improving the all-terrain passability of the vehicle-mounted leveling leg.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the linkage mechanism includes: a top plate, two side plates, two connecting rods, a buffer block, and two fixed shafts; the two side plates are respectively disposed on the two sides of the top plate, the top ends of the two connecting rods are respectively hinged to the two side plates, the buffer block is installed on the side of the top plate perpendicular to the side plates, and the two fixed shafts are respectively installed on the side walls of the two side plates.

[0008] The beneficial effects of adopting the above-mentioned further solution are: the hinged connection between the fixed shaft and the deceleration mechanism and the hinged connection between the connecting rod and the side plate are conducive to the flipping when the leveling leg retracts upward, and the buffer block is conducive to preventing the deceleration mechanism from colliding with the top plate due to the deceleration mechanism flipping too fast.

[0009] Furthermore, the connecting rod has multiple mounting holes arranged side by side on its side wall, and the mounting holes are through holes that connect to the protection mechanism.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the connection between the mounting hole and the protection mechanism is conducive to providing tension for the flipping of the protection mechanism, thereby enabling the protection mechanism and its internal transmission mechanism, telescopic mechanism and support mechanism to flip at the hinge of the side plate and connecting rod.

[0011] Furthermore, the protective mechanism includes: a compression spring, a protective cylinder, two hooks, and a dust cover; the compression spring and the dust cover are respectively disposed at the upper and lower ends of the protective cylinder, the compression spring abuts against the bottom end of the deceleration mechanism, the two hooks are disposed on the side wall of the protective cylinder and are respectively fitted into the hook holes of the two connecting rods, the compression spring, the protective cylinder, and the dust cover are all sleeved on the support mechanism, and the support mechanism is sleeved on the telescopic mechanism.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: the compression spring helps to provide cushioning through extension and retraction when the protection mechanism flips; the matching installation of the lugs and mounting holes helps to connect the protection cylinder with the connecting rod and provide tension for flipping; and the dust cover helps to prevent dust on the outer wall from affecting the inside of the leveling leg.

[0013] Furthermore, the deceleration mechanism includes: a manual bevel gear device, a driving gear, a driven gear, a spur gear, a motor, a reducer, and a housing; the manual bevel gear device, the driving gear, the driven gear, and the spur gear are all disposed within the housing; the manual bevel gear device is connected to the driving gear, the driving gear is connected to the driven gear, the driven gear is connected to the spur gear, the spur gear is connected to the transmission mechanism, the output shaft of the motor is connected to the reducer, the reducer is connected to the driving gear via a connecting rod, the compression spring abuts against the bottom end of the housing, the motor is connected to the control mechanism, and the two fixed shafts are hinged to the two side walls of the housing in a one-to-one correspondence.

[0014] The beneficial effects of adopting the above-mentioned further scheme are: the sequential connection between the manual bevel gear device, the driving gear, the driven gear and the spur gear is conducive to realizing the manual adjustment of the leveling leg; the sequential connection between the motor, the reducer, the driving gear, the driven gear and the spur gear is conducive to realizing the automatic adjustment of the leveling leg; and the hinge between the fixed shaft and the housing is conducive to realizing the rotation of the reduction mechanism around the fixed shaft.

[0015] Furthermore, the manual bevel gear device includes: a gear shaft, a bevel gear, and a hand crank connection hole; the bevel gear is sleeved on one end of the gear shaft and meshes with the drive gear; the hand crank connection hole is a blind hole located on the end of the gear shaft away from the bevel gear; and the hand crank connection hole is adapted to be connected to an external crank handle.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the hand crank connection hole is adapted to the external crank handle, which is conducive to rotating the gear shaft by the crank handle, thereby driving the bevel gear and the driving gear, driven gear and spur gear connected to the bevel gear in sequence to rotate, so as to realize the generation and transmission of manual power.

[0017] Furthermore, the transmission mechanism includes: a lead screw, a bearing, and a bearing seat; the bearing is sleeved on the lead screw, the bearing is installed in the bearing seat, the spur gear is connected to the top end of the lead screw, the bearing seat is disposed in the support mechanism, and the lead screw is connected to the telescopic mechanism.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the bearing seat helps to fix the transmission mechanism in the support mechanism, thereby enabling the lead screw to rotate stably coaxially in the support mechanism through the power of the reduction mechanism, thereby driving the telescopic mechanism to extend and retract.

[0019] Furthermore, the support mechanism includes a support tube and a limiting plate; the limiting plate is disposed at the top end of the support tube and installed at the bottom end of the outer shell, and the bearing seat is adapted to be installed on the inner wall of the support tube.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the limiting plate is installed at the bottom of the housing, which helps to fix the transmission mechanism at the bottom of the housing and provides support for the stable rotation of the lead screw in the transmission mechanism.

[0021] Furthermore, the telescopic mechanism includes: a copper nut, a telescopic cylinder, a ball head seat, and a load-bearing plate; the copper nut is fixedly installed at the top end inside the telescopic cylinder and threadedly connected to the lead screw, the lead screw passes through the copper nut and is vertically movable inside the telescopic cylinder, the ball head seat is rotatably installed at the bottom end of the telescopic cylinder, the load-bearing plate is installed on the ball head seat, the support tube is sleeved on the telescopic cylinder, and the compression spring, the protective cylinder, and the dust cover are all sleeved on the support tube.

[0022] The beneficial effects of adopting the above-mentioned further solution are: the copper nut is threaded to the lead screw, which is conducive to driving the telescopic cylinder, ball head seat and bearing plate to move up and down as a whole, thereby realizing the displacement change between the telescopic mechanism and the transmission mechanism. The ball head seat is rotatably set at the bottom of the telescopic cylinder, which is conducive to the bearing plate contacting the ground at any angle to achieve vehicle support.

[0023] Furthermore, the unfolding limiting mechanism includes an unfolding fixing plate and an unfolding limiting switch, and the retracting limiting mechanism includes a retracting fixing plate and a retracting limiting switch; the unfolding fixing plate and the retracting fixing plate are both installed on the side of the top plate perpendicular to the side plate, and the unfolding limiting switch and the retracting limiting switch are installed one-to-one on the unfolding fixing plate and the retracting fixing plate, and are connected to the control mechanism.

[0024] The beneficial effect of adopting the above-mentioned further solution is that the combination of the unfolding limit switch and the retracting limit switch with the control mechanism is conducive to detecting the position between the housing of the deceleration mechanism and the switch before and after the flip, thereby providing a positioning signal before and after the flip. Attached Figure Description

[0025] Figure 1 A diagram showing the overall structure unfolded according to an embodiment of this utility model;

[0026] Figure 2 A diagram showing the overall structure when flipped, as provided in an embodiment of this utility model;

[0027] Figure 3 A cross-sectional view of the overall structure when unfolded according to an embodiment of this utility model;

[0028] Figure 4 This is a schematic diagram of the linkage mechanism provided in an embodiment of the present utility model;

[0029] Figure 5 A cross-sectional view of the deceleration mechanism provided in an embodiment of this utility model;

[0030] Figure 6 A schematic diagram of the manual bevel gear device provided in this embodiment of the utility model;

[0031] Figure 7 A cross-sectional view of the transmission mechanism provided in an embodiment of this utility model;

[0032] Figure 8 A cross-sectional view of the telescopic mechanism and the protective mechanism provided in the embodiments of this utility model;

[0033] Figure 9 A cross-sectional view of the support mechanism provided in an embodiment of this utility model;

[0034] Figure 10 A schematic diagram of the unfolding limiting mechanism provided in an embodiment of this utility model;

[0035] Figure 11 A schematic diagram of the retraction and limiting mechanism provided in this embodiment of the utility model;

[0036] Figure 12 A schematic diagram showing the leveling legs installed on a vehicle chassis and unfolded, as provided in this embodiment of the utility model.

[0037] Figure 13 This is a schematic diagram of the leveling leg installed on the vehicle chassis and flipped, as provided in an embodiment of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 1. Linkage mechanism; 2. Reduction mechanism; 3. Transmission mechanism; 4. Telescopic mechanism; 5. Protection mechanism; 6. Support mechanism; 7. Deployment limit mechanism; 8. Retraction limit mechanism; 11. Top plate; 12. Side plate; 13. Linkage rod; 14. Buffer block; 15. Fixed shaft; 21. Manual bevel gear device; 22. Driving gear; 23. Driven gear; 24. Spur gear; 25. Motor; 26. Reducer; 27. Housing; 31. Lead screw; 32. 1. Bearing; 33. Bearing seat; 41. Copper nut; 42. Telescopic cylinder; 43. Ball head seat; 44. Load-bearing plate; 51. Compression spring; 52. Protective cylinder; 53. Hanging lug; 54. Dust cover; 61. Support tube; 62. Limiting plate; 71. Unfolding fixing plate; 72. Unfolding limit switch; 81. Closing fixing plate; 82. Closing limit switch; 131. Hanging hole; 211. Gear shaft; 212. Bevel gear; 213. Hand crank connection hole. Detailed Implementation

[0040] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0041] like Figures 1 to 3 As shown, a retractable vehicle-mounted leveling leg includes: a linkage mechanism 1, a deceleration mechanism 2, a transmission mechanism 3, a telescopic mechanism 4, a protection mechanism 5, a support mechanism 6, an unfolding limiting mechanism 7, a retracting limiting mechanism 8, and a control mechanism. The deceleration mechanism 2 is located below the linkage mechanism 1 and is hinged to it. The transmission mechanism 3 is located below the deceleration mechanism 2 and is connected to it. The telescopic mechanism 4 is sleeved on the transmission mechanism 3. The support mechanism 6 is sleeved on the telescopic mechanism 4, with its top end mounted on the bottom end of the deceleration mechanism 2. The protection mechanism 5 is sleeved on the support mechanism 6, with its top end abutting against the bottom end of the deceleration mechanism 2. The side wall of the protection mechanism 5 is connected to the linkage mechanism 1. The unfolding limiting mechanism 7 and the retracting limiting mechanism 8 are both mounted on the linkage mechanism 1. The deceleration mechanism 2, the unfolding limiting mechanism 7, and the retracting limiting mechanism 8 are all connected to the control mechanism.

[0042] It should be noted that in the technical solution of this utility model, the control mechanism is a single-chip microcomputer or a PLC (Programmable Logic Controller), and the signal transmission between the deceleration mechanism 2, the unfolding limit mechanism 7, the retracting limit mechanism 8 and the control mechanism are all existing technologies.

[0043] The beneficial effects of this utility model are: the interlocking design of the transmission mechanism, telescopic mechanism, protection mechanism and support mechanism is conducive to realizing the telescopic function of the leveling leg while minimizing the structural size. The deceleration mechanism and the linkage mechanism are hinged, which can realize automatic flipping and retraction while telescopic, thereby meeting the characteristics of off-road terrain transportation, avoiding interference between the leveling leg and obstacles on the ground, and improving the all-terrain passability of the vehicle-mounted leveling leg.

[0044] Preferred, such as Figure 4 As shown, the linkage mechanism 1 includes: a top plate 11, two side plates 12, two connecting rods 13, a buffer block 14, and two fixed shafts 15; the two side plates 12 are respectively disposed on the two sides of the top plate 11, the top ends of the two connecting rods 13 are respectively hinged to the two side plates 12, the buffer block 14 is installed on the side of the top plate 11 perpendicular to the side plates 12, and the two fixed shafts 15 are respectively installed on the side walls of the two side plates 12.

[0045] The advantages of adopting the above preferred solution are: the hinged connection between the fixed shaft and the deceleration mechanism and the hinged connection between the connecting rod and the side plate are conducive to the flipping when the leveling leg retracts upward, and the buffer block is conducive to preventing the deceleration mechanism from colliding with the top plate due to the deceleration mechanism flipping too fast.

[0046] Preferred, such as Figure 4 As shown, multiple mounting holes 131 are arranged side by side on the side wall of the connecting rod 13, and the mounting holes 131 are through holes connected to the protection mechanism 5.

[0047] The advantages of adopting the above preferred solution are: the connection between the mounting hole and the protection mechanism is conducive to providing tension for the flipping of the protection mechanism, thereby enabling the protection mechanism and its internal transmission mechanism, telescopic mechanism and support mechanism to flip at the hinge of the side plate and connecting rod.

[0048] Preferred, such as Figure 3 and Figure 8 As shown, the protective mechanism 5 includes: a compression spring 51, a protective cylinder 52, two hanging ears 53, and a dust cover 54; the compression spring 51 and the dust cover 54 are respectively arranged at the upper and lower ends of the protective cylinder 52, the compression spring 51 abuts against the bottom end of the deceleration mechanism 2, the two hanging ears 53 are arranged on the side wall of the protective cylinder 52, and are respectively fitted into the hanging holes 131 of the two connecting rods 13, the compression spring 51, the protective cylinder 52, and the dust cover 54 are all sleeved on the support mechanism 6, and the support mechanism 6 is sleeved on the telescopic mechanism 4.

[0049] The advantages of adopting the above preferred solution are: the compression spring helps to provide cushioning through extension and retraction when the protection mechanism flips; the matching installation of the lug and the mounting hole helps to connect the protection cylinder with the connecting rod and provide tension for flipping; and the dust cover helps to prevent dust on the outer wall from affecting the inside of the leveling leg.

[0050] Preferred, such as Figure 5 As shown, the reduction mechanism 2 includes: a manual bevel gear device 21, a driving gear 22, a driven gear 23, a spur gear 24, a motor 25, a reducer 26, and a housing 27. The manual bevel gear device 21, the driving gear 22, the driven gear 23, and the spur gear 24 are all disposed within the housing 27. The manual bevel gear device 21 is connected to the driving gear 22, the driving gear 22 is connected to the driven gear 23, the driven gear 23 is connected to the spur gear 24, the spur gear 24 is connected to the transmission mechanism 3, the output shaft of the motor 25 is connected to the reducer 26, the reducer 26 is connected to the driving gear 22 via a connecting rod, the compression spring 51 abuts against the bottom end of the housing 27, the motor 25 is connected to the control mechanism, and the two fixed shafts 15 are hinged to the two side walls of the housing 27 one-to-one.

[0051] The advantages of adopting the above preferred scheme are: the sequential connection between the manual bevel gear device, the driving gear, the driven gear and the spur gear facilitates the manual adjustment of the leveling leg; the sequential connection between the motor, the reducer, the driving gear, the driven gear and the spur gear facilitates the automatic adjustment of the leveling leg; and the hinge between the fixed shaft and the housing facilitates the rotation of the reduction mechanism around the fixed shaft.

[0052] Preferred, such as Figure 6 As shown, the manual bevel gear device 21 includes: a gear shaft 211, a bevel gear 212, and a hand crank connection hole 213; the bevel gear 212 is sleeved on one end of the gear shaft 211 and meshes with the drive gear 22; the hand crank connection hole 213 is a blind hole provided on the end of the gear shaft 211 away from the bevel gear 212; the hand crank connection hole 213 is adapted to be connected to an external crank handle.

[0053] The advantages of adopting the above-mentioned preferred solution are: the hand crank connection hole is adapted to the external crank handle, which facilitates the rotation of the gear shaft by the crank handle, thereby driving the bevel gear and the driving gear, driven gear and spur gear connected to the bevel gear in sequence to rotate, so as to realize the generation and transmission of manual power.

[0054] Preferred, such as Figure 7 As shown, the transmission mechanism 3 includes: a lead screw 31, a bearing 32, and a support seat 33; the bearing 32 is sleeved on the lead screw 31 and installed in the support seat 33; the spur gear 24 is connected to the top end of the lead screw 31; the support seat 33 is disposed in the support mechanism 6; and the lead screw 31 is connected to the telescopic mechanism 4.

[0055] The advantages of adopting the above preferred solution are: the bearing seat helps to fix the transmission mechanism in the support mechanism, thereby enabling the lead screw to rotate stably coaxially in the support mechanism through the power of the reduction mechanism, thereby driving the telescopic mechanism to extend and retract.

[0056] Preferred, such as Figure 9 As shown, the support mechanism 6 includes a support tube 61 and a limiting plate 62; the limiting plate 62 is disposed at the top of the support tube 61 and installed at the bottom of the outer shell 27, and the bearing seat 33 is adapted to be installed on the inner wall of the support tube 61.

[0057] The advantages of adopting the above preferred solution are: the limiting plate is installed at the bottom of the housing, which helps to fix the transmission mechanism at the bottom of the housing and provides support for the stable rotation of the lead screw in the transmission mechanism.

[0058] Preferred, such as Figure 8As shown, the telescopic mechanism 4 includes: a copper nut 41, a telescopic cylinder 42, a ball head seat 43, and a load-bearing plate 44; the copper nut 41 is fixedly installed at the top end inside the telescopic cylinder 42 and is threadedly connected to the lead screw 31. The lead screw 31 passes through the copper nut 41 and is disposed inside the telescopic cylinder 42 with vertical displacement. The ball head seat 43 is rotatably disposed at the bottom end of the telescopic cylinder 42. The load-bearing plate 44 is installed on the ball head seat 43. The support tube 61 is sleeved on the telescopic cylinder 42. The compression spring 51, the protective cylinder 52, and the dust cover 54 are all sleeved on the support tube 61.

[0059] The advantages of adopting the above-mentioned preferred solution are: the copper nut is threaded to the lead screw, which is conducive to driving the telescopic cylinder, ball head seat and bearing plate to move up and down as a whole, thereby realizing the displacement change between the telescopic mechanism and the transmission mechanism. The ball head seat is rotatably set at the bottom of the telescopic cylinder, which is conducive to the bearing plate contacting the ground at any angle to achieve vehicle support.

[0060] Preferred, such as Figure 10 and Figure 11 As shown, the unfolding limiting mechanism 7 includes an unfolding fixing plate 71 and an unfolding limiting switch 72, and the retracting limiting mechanism 8 includes a retracting fixing plate 81 and a retracting limiting switch 82. The unfolding fixing plate 71 and the retracting fixing plate 81 are both installed on the side of the top plate 11 perpendicular to the side plate 12. The unfolding limiting switch 72 and the retracting limiting switch 82 are installed one-to-one on the unfolding fixing plate 71 and the retracting fixing plate 81, and are connected to the control mechanism.

[0061] The advantages of adopting the above-mentioned preferred solution are: the combination of the unfolding limit switch and the retracting limit switch with the control mechanism is conducive to detecting the position between the housing of the deceleration mechanism and the switch before and after the flip, thereby providing a positioning signal before and after the flip.

[0062] The working process of this utility model is described below:

[0063] like Figures 1 to 13As shown, during the flipping process, the spur gear 24 drives the lead screw 31 to rotate, and the copper nut 41 moves upward on the lead screw 31, which in turn drives the telescopic mechanism 4 to move upward. When the load-bearing plate 44 moves upward to contact the dust cover 54, it applies an upward thrust to the protection mechanism 5. Since the hanging ear 53 is simultaneously subjected to the tension of the connecting rod 13, under the combined action of the upward thrust and tension, the hanging ear 53 tends to rotate in the hanging hole 131 and between the connecting rod 13 and the side plate 12. When the load-bearing plate 44 continues to apply an upward thrust, the protection mechanism 5 rotates around the connection point between the hanging ear 53 and the hanging hole 131 and the connection point between the connecting rod 13 and the side plate 12. During the rotation, the outer shell 27 and the fixed shaft 15 also flip in the same direction, eventually causing the deceleration mechanism 2, transmission mechanism 3, telescopic mechanism 4, protection mechanism 5 and support mechanism 6 to all flip until the outer shell 27 contacts the retraction limit switch 82. The control mechanism then issues a command to stop the deceleration mechanism 2, and the flipping ends.

[0064] When unfolding, the spur gear 24 rotates in the opposite direction, causing the copper nut 41 to move downward on the lead screw 31, which in turn causes the telescopic mechanism 4 to move downward along the transmission mechanism 3. At this time, the load-bearing plate 44 no longer applies a thrust to the protection mechanism 5. Then, under the action of gravity, the deceleration mechanism 2, the transmission mechanism 3, the telescopic mechanism 4, the protection mechanism 5, and the support mechanism 6 all rotate in the opposite direction to unfold until the load-bearing plate 44 contacts the ground, or until the outer shell 27 contacts the unfolding limit switch 72. The control mechanism issues a command to stop the operation of the deceleration mechanism 2, and the unfolding ends.

[0065] During the above process, the operation of the reduction mechanism 2 causes the spur gear 24 to rotate in both directions. This can be achieved automatically by driving the motor 25 to rotate through the control mechanism, or manually by driving the manual bevel gear device 21 to rotate through an external crank.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A type of retractable vehicle-mounted leveling leg, characterized in that, include: Linkage mechanism (1), deceleration mechanism (2), transmission mechanism (3), telescopic mechanism (4), protection mechanism (5), support mechanism (6), unfolding limit mechanism (7), retracting limit mechanism (8), and control mechanism; The deceleration mechanism (2) is located below the linkage mechanism (1) and is hinged to the linkage mechanism (1). The transmission mechanism (3) is located below the deceleration mechanism (2) and is connected to the deceleration mechanism (2). The telescopic mechanism (4) is sleeved on the transmission mechanism (3). The support mechanism (6) is sleeved on the telescopic mechanism (4) and its top end is installed on the bottom end of the deceleration mechanism (2). The protection mechanism (5) is sleeved on the support mechanism (6) and its top end abuts against the bottom end of the deceleration mechanism (2). The side wall of the protection mechanism (5) is connected to the linkage mechanism (1). The unfolding limiting mechanism (7) and the retracting limiting mechanism (8) are both installed on the linkage mechanism (1). The deceleration mechanism (2), the unfolding limiting mechanism (7), and the retracting limiting mechanism (8) are all connected to the control mechanism.

2. The retractable vehicle-mounted leveling leg according to claim 1, characterized in that, The linkage mechanism (1) includes: a top plate (11), two side plates (12), two connecting rods (13), a buffer block (14), and two fixed shafts (15); the two side plates (12) are respectively disposed on the two sides of the top plate (11), the top ends of the two connecting rods (13) are respectively hinged to the two side plates (12), the buffer block (14) is installed on the side of the top plate (11) perpendicular to the side plate (12), and the two fixed shafts (15) are respectively installed on the side wall of the two side plates (12).

3. The retractable vehicle-mounted leveling leg according to claim 2, characterized in that, The connecting rod (13) has a plurality of hanging holes (131) arranged side by side on its side wall. The hanging holes (131) are through holes that are connected to the protection mechanism (5).

4. The retractable vehicle-mounted leveling leg according to claim 3, characterized in that, The protective mechanism (5) includes: a compression spring (51), a protective cylinder (52), two hanging ears (53), and a dust cover (54); the compression spring (51) and the dust cover (54) are respectively arranged at the upper and lower ends of the protective cylinder (52), the compression spring (51) abuts against the bottom end of the deceleration mechanism (2), the two hanging ears (53) are arranged on the side wall of the protective cylinder (52), and are respectively fitted into the hanging holes (131) of the two connecting rods (13), the compression spring (51), the protective cylinder (52), and the dust cover (54) are all sleeved on the support mechanism (6), and the support mechanism (6) is sleeved on the telescopic mechanism (4).

5. The retractable vehicle-mounted leveling leg according to claim 4, characterized in that, The reduction mechanism (2) includes: a manual bevel gear device (21), a drive gear (22), a driven gear (23), a spur gear (24), a motor (25), a reducer (26), and a housing (27); the manual bevel gear device (21), the drive gear (22), the driven gear (23), and the spur gear (24) are all disposed within the housing (27); the manual bevel gear device (21) is connected to the drive gear (22), and the drive gear (22) is connected to the driven gear (24). 23) The passive gear (23) is connected to the spur gear (24), the spur gear (24) is connected to the transmission mechanism (3), the output shaft of the motor (25) is connected to the reducer (26), the reducer (26) is connected to the driving gear (22) through a connecting rod, the compression spring (51) abuts against the bottom end of the outer shell (27), the motor (25) is connected to the control mechanism, and the two fixed shafts (15) are hinged to the two side walls of the outer shell (27) one by one.

6. The retractable vehicle-mounted leveling leg according to claim 5, characterized in that, The manual bevel gear device (21) includes: a gear shaft (211), a bevel gear (212), and a hand crank connection hole (213); the bevel gear (212) is sleeved on one end of the gear shaft (211) and meshes with the drive gear (22); the hand crank connection hole (213) is a blind hole located at one end of the gear shaft (211) away from the bevel gear (212); the hand crank connection hole (213) is adapted to be connected to an external crank handle.

7. The retractable vehicle-mounted leveling leg according to claim 5, characterized in that, The transmission mechanism (3) includes: a lead screw (31), a bearing (32) and a support seat (33); the bearing (32) is sleeved on the lead screw (31), the bearing (32) is installed in the support seat (33), the spur gear (24) is connected to the top end of the lead screw (31), the support seat (33) is set in the support mechanism (6), and the lead screw (31) is connected to the telescopic mechanism (4).

8. The retractable vehicle-mounted leveling leg according to claim 7, characterized in that, The support mechanism (6) includes a support tube (61) and a limiting plate (62); the limiting plate (62) is disposed at the top of the support tube (61) and installed at the bottom of the outer shell (27); the bearing seat (33) is adapted to be installed on the inner wall of the support tube (61).

9. The retractable vehicle-mounted leveling leg according to claim 8, characterized in that, The telescopic mechanism (4) includes: a copper nut (41), a telescopic cylinder (42), a ball head seat (43), and a load-bearing plate (44); the copper nut (41) is fixedly installed at the top of the telescopic cylinder (42) and threadedly connected to the lead screw (31); the lead screw (31) passes through the copper nut (41) and is disposed inside the telescopic cylinder (42) with vertical displacement; the ball head seat (43) is rotatably disposed at the bottom of the telescopic cylinder (42); the load-bearing plate (44) is installed on the ball head seat (43); the support tube (61) is sleeved on the telescopic cylinder (42); the compression spring (51), the protective cylinder (52), and the dust cover (54) are all sleeved on the support tube (61).

10. The retractable vehicle-mounted leveling leg according to claim 2, characterized in that, The unfolding limiting mechanism (7) includes an unfolding fixing plate (71) and an unfolding limiting switch (72), and the retracting limiting mechanism (8) includes a retracting fixing plate (81) and a retracting limiting switch (82). The unfolding fixing plate (71) and the folding fixing plate (81) are both installed on the side of the top plate (11) perpendicular to the side plate (12). The unfolding limit switch (72) and the folding limit switch (82) are installed one-to-one on the unfolding fixing plate (71) and the folding fixing plate (81) and are connected to the control mechanism.

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