Lead screw protection structure for transition plate vehicle

Abstract

The utility model relates to the technical field of lead screws, and discloses a lead screw protection structure for a transition plate trailer, which comprises a base and a driving device, the driving device comprises a motor, the other side of the motor is movably connected with a coupler, the other side of the coupler is movably connected with a lead screw rod, the outer side of the lead screw rod is movably sleeved with a nut sleeve, and the nut sleeve is sleeved with a nut. A connecting piece is fixedly connected to the top of the nut sleeve, protection boxes are movably connected to the exteriors of the two sides of the lead screw rod, protection plates are movably connected to the tops of the protection boxes, and extension plates are fixedly connected to the front and back faces of the protection plates; the lead screw and the external environment are isolated through cooperation of the protection box and the protection plate, dust and other sundries in the external environment are greatly prevented from entering the protection box, meanwhile, the extension plate covers the space above the groove between the protection box and the protection plate, dust is prevented from directly falling onto the lead screw, and the service life of the lead screw is prolonged. The service life of the lead screw is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of lead screws, and more particularly to a lead screw protection structure for a boarding plate vehicle. Background Art

[0002] A boarding plate, in the form of a mechanical and movable ramp, is often provided on some low-floor light rail vehicles for wheelchair access, which can level the height difference and gap between the platform and the carriage; a lead screw is a component widely used in mechanical equipment, and its main function is to convert rotational motion into linear motion, or linear motion into rotational motion. There are many types of lead screws, including ball screws, sliding screws, planetary roller screws, and hydrostatic screws, etc. Each type has its specific application scenarios and advantages. The application of lead screws is very extensive, covering almost all industrial fields, including medical, furniture, household, electronics, electric power, machinery, metallurgy, transportation, mining, petroleum, chemical industry, lifting, transportation, construction, etc.

[0003] Existing deficiencies: For the lead screw used in the boarding plate device, if the lead screw cannot be well protected, resulting in corrosion of the lead screw by dust and other impurities, it may cause the inner circulating steel balls in the nut to get stuck, making the boarding plate device unable to unfold and affecting its service life; secondly, there may be a gap between the elevated part of the boarding plate and the object during use, resulting in insufficient fitting and affecting the use of the boarding plate. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a lead screw protection structure for a boarding plate vehicle to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: A lead screw protection structure for a boarding plate vehicle includes a base and a driving device. A driving device is fixedly connected to the middle of the top of the base. A rotating mechanism is fixedly connected to the top of the driving device. A board surface assembly is movably connected to the top of one side of the base. A stabilizing assembly is movably connected to the other side of the board surface assembly. The driving device includes a motor. A coupling is movably connected to the other side of the motor. A lead screw is movably connected to the other side of the coupling. A nut sleeve is movably sleeved on the outer side of the lead screw. A connecting piece is fixedly connected to the top of the nut sleeve. Protective boxes are movably connected to the outer sides of both sides of the lead screw. A protective plate is movably connected to the top of the protective box. Extension plates are fixedly connected to the front and back of the protective plate. There is a groove between the protective plate and the protective box that allows the connecting piece to move, and the position of the extension plate extends out of the top of the groove.

[0006] Further, the base includes a frame. At positions near the middle on both sides of the frame, there are fixedly connected supporting plates. In the middle of the top of the supporting plate, there is a groove, and the groove is adapted to the protection box. On one side of the frame, there are fixedly connected evenly distributed supporting rotating columns.

[0007] Further, the rotating mechanism includes a first mounting base. In the middle of the front and back of the first mounting base, there is a movable connection with a connecting rod. The outer side of the connecting rod is movably sleeved with a support column. The top of the support column is movably connected with a connecting rotating part.

[0008] Further, the plate surface assembly includes a moving plate. On one side of the bottom of the moving plate, there are fixedly connected evenly distributed rotating blocks, and the rotating blocks are adapted to the supporting rotating columns. On the front and back of the bottom of the moving plate, there are fixedly connected side plates. On the bottom of the moving plate, there are fixedly connected evenly distributed brackets.

[0009] Further, the stabilizing assembly includes a second mounting base. Inside the second mounting base, there is a movable connection with an electric push rod. On the front and back of the other side of the electric push rod, there is a movable connection with a first connecting plate. On the top of the first connecting plate, there is fixedly connected a stabilizing tongue plate.

[0010] Further, at the bottom of the stabilizing tongue plate, there are fixedly connected evenly distributed second connecting plates. The second connecting plates are movably connected with the brackets. Inside the second connecting plates, there is a movable sleeve with a straight rod. The front and back of the straight rod are movably connected with the moving plate.

[0011] The technical effects and advantages of the present utility model:

[0012] 1. By providing a driving device in the present utility model, the motor drives the coupling and the lead screw to rotate, so that the nut sleeve moves on the lead screw. Then, the connecting piece and the first mounting base and the support column mounted thereon push the moving plate to lift, so that the plate surface assembly forms a certain slope to level the height difference. Through the cooperation of the protection box and the protection plate, the lead screw is isolated from the external environment, greatly blocking dust and other sundries in the external environment from entering the interior of the protection box. At the same time, the extension plate covers the space above the groove between the protection box and the protection plate, which is beneficial to preventing dust from directly falling on the lead screw and affecting the service life of the lead screw.

[0013] 2. By providing a stabilizing assembly in the present utility model, when the moving plate is lifted, the electric push rod moves, causing the first connecting plate to rotate, thereby driving the stabilizing tongue plate to rotate along the straight rod, rotating from the initial perpendicular to the ground to parallel to the ground, which is beneficial to making the lifted moving plate fit and contact with the object, reducing the influence of the gap between the lifted moving plate and the object on the use. Description of the Drawings

[0014] Figure 1This is the overall structural schematic diagram of the present utility model.

[0015] Figure 2 This is the structural schematic diagram of the driving device and the rotating mechanism of the present utility model.

[0016] Figure 3 This is the structural schematic diagram of the base of the present utility model.

[0017] Figure 4 This is the structural schematic diagram of the board surface assembly of the present utility model.

[0018] Figure 5 This is the structural schematic diagram of the stability assembly of the present utility model.

[0019] The reference signs are: 1, base; 101, frame; 102, supporting plate; 103, supporting rotating column; 2, driving device; 201, motor; 202, coupling; 203, lead screw; 204, nut sleeve; 205, connecting piece; 206, protection box; 207, protection plate; 208, extension plate; 3, rotating mechanism; 301, first mounting base; 302, connecting rod; 303, pillar; 304, connecting rotating piece; 4, board surface assembly; 401, moving plate; 402, rotating block; 403, side plate; 404, bracket; 5, stability assembly; 501, second mounting base; 502, electric push rod; 503, first connecting plate; 504, stability tongue plate; 505, second connecting plate; 506, straight rod. Detailed implementation manners

[0020] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following implementation manners are only examples. A lead screw protection structure for a ferry plate vehicle related to the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Refer to Figures 1 - 5, the present utility model provides a lead screw protection structure for a ferry board vehicle, including a base 1 and a driving device 2. The driving device 2 is fixedly connected to the middle of the top of the base 1. The top of the driving device 2 is fixedly connected to a rotating mechanism 3. One side of the top of the base 1 is movably connected to a board surface assembly 4, and the other side of the board surface assembly 4 is movably connected to a stabilizing assembly 5. The driving device 2 includes a motor 201. The other side of the motor 201 is movably connected to a coupling 202. The other side of the coupling 202 is movably connected to a lead screw 203. The outside of the lead screw 203 is movably sleeved with a nut sleeve 204. The top of the nut sleeve 204 is fixedly connected to a connecting member 205. The two sides of the outside of the lead screw 203 are movably connected to a protection box 206. The top of the protection box 206 is movably connected to a protection plate 207. The front and back of the protection plate 207 are fixedly connected to extension plates 208. There is a groove between the protection plate 207 and the protection box 206 that allows the connecting member 205 to move. The position of the extension plate 208 extends out of the top of the groove. By driving the coupling 202 and the lead screw 203 to rotate through the motor 201, the nut sleeve 204 moves on the lead screw 203, and then the connecting member 205 and the first mounting base 301 and the support column 303 mounted on it push the moving plate 401 to lift, so that the board surface assembly 4 forms a certain slope to level the height difference. Through the cooperation of the protection box 206 and the protection plate 207, the lead screw 203 is isolated from the external environment, greatly blocking dust and other sundries in the external environment from entering the interior of the protection box 206. At the same time, the extension plate 208 covers the space above the groove between the protection box 206 and the protection plate 207, which is beneficial to preventing dust from directly falling on the lead screw 203 and affecting the service life of the lead screw.

[0022] In a preferred embodiment, the base 1 includes a frame 101. Support plates 102 are fixedly connected to the middle positions of both sides of the frame 101. A groove is opened in the middle of the top of the support plate 102, and the groove is adapted to the protection box 206. One side of the frame 101 is fixedly connected with uniformly distributed support rotating columns 103.

[0023] In a preferred embodiment, the rotating mechanism 3 includes a first mounting base 301. Connecting rods 302 are movably connected to the middle positions of the front and back of the first mounting base 301. The outside of the connecting rod 302 is movably sleeved with a support column 303. The top of the support column 303 is movably connected to a connecting rotating member 304.

[0024] In a preferred embodiment, the board surface assembly 4 includes a moving plate 401. Uniformly distributed rotating blocks 402 are fixedly connected to one side of the bottom of the moving plate 401. The rotating blocks 402 are adapted to the support rotating columns 103. Side plates 403 are fixedly connected to both the front and back of the bottom of the moving plate 401. Uniformly distributed brackets 404 are fixedly connected to the bottom of the moving plate 401.

[0025] In a preferred embodiment, the stabilizing component 5 includes a second mounting base 501. An electric push rod 502 is movably connected inside the second mounting base 501. The front and back sides of the other side of the electric push rod 502 are movably connected with a first connecting plate 503. A stabilizing tongue plate 504 is fixedly connected to the top of the first connecting plate 503.

[0026] In a preferred embodiment, a uniformly distributed second connecting plate 505 is fixedly connected to the bottom of the stabilizing tongue plate 504. The second connecting plate 505 is movably connected with the bracket 404. A straight rod 506 is movably sleeved inside the second connecting plate 505. The front and back sides of the straight rod 506 are movably connected with the moving plate 401. When the moving plate 401 is lifted, the electric push rod 502 moves, causing the first connecting plate 503 to rotate, thereby driving the stabilizing tongue plate 504 to rotate along the straight rod 506, rotating from the initial perpendicular to the ground to parallel to the ground, which is beneficial for the lifted moving plate 401 to be in close contact with the object, reducing the influence of the gap between the lifted moving plate 401 and the object on the use.

[0027] The working principle of the present utility model: Initially, the plate surface component 4 is combined with the base 1, and the stabilizing tongue plate 504 of the stabilizing component 5 is perpendicular to the base 1. When in use, the motor 201 drives the coupling 202 and the lead screw 203 to rotate, causing the nut sleeve 204 to move on the lead screw 203. Subsequently, the connecting member 205 and the first mounting base 301 and the support column 303 mounted thereon push the moving plate 401 to lift. At the same time, the support column 303 rotates around the connecting rod 302 as a fulcrum to adjust the angle, and the angle of the support column 303 is rotationally matched inside the connecting rotating member 304. The moving plate 401 rotates in cooperation with the support rotating column 103 through the rotating block 402, causing the other side of the plate surface component 4 to be lifted to form a certain slope to level the height difference. When the moving plate 401 is lifted, the electric push rod 502 moves, causing the first connecting plate 503 to rotate, thereby driving the stabilizing tongue plate 504 to rotate along the straight rod 506, rotating from the initial perpendicular to the ground to parallel to the ground, which is beneficial for the lifted moving plate 401 to be in close contact with the object, reducing the influence of the gap between the lifted moving plate 401 and the object on the use. Through the cooperation of the protection box 206 and the protection plate 207, the lead screw 203 and the external environment are isolated, greatly blocking dust and other sundries in the external environment from entering the inside of the protection box 206. At the same time, the extension plate 208 covers the space above the groove between the protection box 206 and the protection plate 207, which is beneficial for preventing dust from directly falling on the lead screw 203 and affecting the service life of the lead screw.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A screw rod protection structure for a ferry plate vehicle, comprising a base (1) and a driving device (2), characterized in that: At the middle of the top of the base (1), a driving device (2) is fixedly connected. At the top of the driving device (2), a rotating mechanism (3) is fixedly connected. At the top of one side of the base (1), a panel assembly (4) is movably connected. On the other side of the panel assembly (4), a stabilizing assembly (5) is movably connected. The driving device (2) includes a motor (201). On the other side of the motor (201), a coupling (202) is movably connected. On the other side of the coupling (202), a lead screw (203) is movably connected. A nut sleeve (204) is movably sleeved on the outer side of the lead screw (203). At the top of the nut sleeve (204), a connecting member (205) is fixedly connected. On the outer sides of both sides of the lead screw (203), a protective box (206) is movably connected. At the top of the protective box (206), a protective plate (207) is movably connected. On the front and back of the protective plate (207), extension plates (208) are fixedly connected. There is a groove between the protective plate (207) and the protective box (206) that allows the connecting member (205) to move, and the position of the extension plate (208) extends out of the top of the groove.

2. The lead screw protection structure for a ferry plate vehicle according to claim 1, characterized in that: The base (1) includes a frame (101). At the middle positions near both sides of the frame (101), supporting plates (102) are fixedly connected. At the middle of the top of the supporting plate (102), a groove is formed, and the groove is adapted to the protective box (206). On one side of the frame (101), uniformly distributed supporting rotating columns (103) are fixedly connected.

3. The lead screw protection structure for a ferry plate vehicle according to claim 1, characterized in that: The rotating mechanism (3) includes a first mounting base (301). At the middle of the front and back of the first mounting base (301), a connecting rod (302) is movably connected. A support column (303) is movably sleeved on the outer side of the connecting rod (302). At the top of the support column (303), a connecting rotating member (304) is movably connected.

4. A lead screw protection structure for a ferry plate vehicle according to claim 1, characterized in that: The panel assembly (4) includes a moving plate (401). On one side of the bottom of the moving plate (401), uniformly distributed rotating blocks (402) are fixedly connected. The rotating blocks (402) are adapted to the supporting rotating columns (103). On the front and back of the bottom of the moving plate (401), side plates (403) are fixedly connected. On the bottom of the moving plate (401), uniformly distributed brackets (404) are fixedly connected.

5. The lead screw protection structure for a ferry plate vehicle according to claim 1, characterized in that: The stabilizing assembly (5) includes a second mounting base (501). An electric push rod (502) is movably connected inside the second mounting base (501). On the front and back of the other side of the electric push rod (502), a first connecting plate (503) is movably connected. At the top of the first connecting plate (503), a stabilizing tongue plate (504) is fixedly connected.

6. The lead screw protection structure for a ferry plate vehicle according to claim 5, characterized in that: At the bottom of the stabilizing tongue plate (504), uniformly distributed second connecting plates (505) are fixedly connected. The second connecting plates (505) are movably connected to the brackets (404). A straight rod (506) is movably sleeved inside the second connecting plates (505). The front and back of the straight rod (506) are movably connected to the moving plate (401).

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