Cab lifting mechanism

Abstract

The utility model relates to the technical field of lifting mechanisms, and discloses a cab lifting mechanism which comprises a mounting bottom plate, one end of the top of the mounting bottom plate is fixedly connected with a first positioning block, and the top of the mounting bottom plate is fixedly connected with a second positioning block. The inner side of the first positioning block and the inner side of the second positioning block are movably connected with a two-way threaded rod, the outer side of the surface of the two-way threaded rod is fixedly sleeved with a limiting lantern ring, the limiting lantern ring and the second positioning block are attached to each other, and one end of the two-way threaded rod is fixedly connected with a limiting disc. The two-way threaded rod is driven by the output motor, so that the lifting adjusting mechanism can be adjusted, the cab can be jacked by the lifting adjusting mechanism, the cab can be lifted, and meanwhile, the lifting adjusting mechanism can be lifted by the lifting adjusting mechanism when no power is used for supporting. A stable state can be ensured, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mechanisms, and more particularly to a cab lifting mechanism. Background Art

[0002] In a specific use environment, in order to ensure that the driver has a good visual effect, it is usually necessary to use a lifting mechanism to lift and lower the height of the cab, so as to adjust the height of the cab.

[0003] During the use of the existing lifting mechanism, the cab is usually lifted and lowered by an electric telescopic rod or a hydraulic rod. However, in the actual use process, since the electric telescopic rod or the hydraulic rod is a directly driven component, when a failure occurs, after disassembly, the cab will be in an unstable state. For this reason, we propose a cab lifting mechanism. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cab lifting mechanism to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: A cab lifting mechanism, including a mounting base plate. One end of the top of the mounting base plate is fixedly connected with a first positioning block, and the top of the mounting base plate is fixedly connected with a second positioning block. A bidirectional threaded rod is movably connected inside the first positioning block and the second positioning block. A limiting collar is fixedly sleeved on the outer surface of the bidirectional threaded rod, and the limiting collar is mutually attached to the second positioning block. One end of the bidirectional threaded rod is fixedly connected with a limiting disc. An elevating adjustment mechanism is threadedly connected to the outer surface of the bidirectional threaded rod. A transmission card slot is opened at the other end of the bidirectional threaded rod, and an output motor is clamped to the other end of the bidirectional threaded rod through the transmission card slot;

[0006] Further, fixed connection blocks are fixedly connected to both sides of the output motor. Fixed limiting blocks are fixedly connected to both sides of the other end of the top of the mounting base plate. A fastening bolt is threadedly connected between the fixed limiting block and the fixed connection block.

[0007] Further, the outer surface of the fixed connection block is slidably attached to the inner surface of the fixed limiting block.

[0008] Further, a connection handle is fixedly connected to one end of the fixed connection block away from the second positioning block.

[0009] Furthermore, the lifting and adjusting mechanism includes a moving base, the top of the moving base is fixedly connected with a connecting deflecting head, the inner side of the connecting deflecting head is connected with a deflecting support arm through a connecting shaft, and the other end of the deflecting support arm is connected with a connecting mounting plate through a connecting deflecting head.

[0010] Furthermore, a guiding and restricting block is fixedly connected to the top of the mounting base plate, the guiding and restricting block is located between the first positioning block and the second positioning block, and a through groove adapted to the guiding and restricting block is formed at the bottom of the moving base.

[0011] Furthermore, the cross-sectional shape of the guiding and restricting block is T-shaped.

[0012] Technical effects and advantages of the present utility model:

[0013] 1. By driving the bidirectional threaded rod through the provided output motor, the lifting and adjusting mechanism can be adjusted, so that the lifting and adjusting mechanism can jack up the cab, enabling the cab to perform lifting operations. At the same time, the lifting and adjusting mechanism can also ensure a stable state when there is no power support, and the operation is convenient.

[0014] 2. By means of the provided fixed connection block, fixed limiting block and fastening bolt, the fastening bolt can be quickly rotated and disassembled, so that the fixed connection block and the fixed limiting block are no longer connected and fixed. Then, by pulling the connection handle, the fixed connection block and the output motor are driven to move, and the output motor is disassembled, and the operation is convenient. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the lifting and adjusting mechanism of the present utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the transmission card slot of the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the fixed connection block of the present utility model.

[0019] Reference numerals are: 1, mounting base plate; 2, first positioning block; 3, second positioning block; 4, bidirectional threaded rod; 5, limiting collar; 6, lifting and adjusting mechanism; 7, limiting disc; 8, output motor; 9, transmission card slot; 10, fixed connection block; 11, fixed limiting block; 12, fastening bolt; 13, connection handle; 14, moving base; 15, connecting deflecting head; 16, deflecting support arm; 17, connecting mounting plate; 18, guiding and restricting block. Detailed Embodiments

[0020] Next, in combination with the accompanying drawings in the present utility model, the technical solutions in the present utility model will be clearly and completely described. In addition, the forms of each structure described in the following embodiments are merely examples, and the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Referring to Figures 1-4 , the present utility model provides a cab lifting mechanism, including a mounting base plate 1. One end of the top of the mounting base plate 1 is fixedly connected with a first positioning block 2, and the top of the mounting base plate 1 is fixedly connected with a second positioning block 3. A bidirectional threaded rod 4 is movably connected inside the first positioning block 2 and the second positioning block 3. A limiting collar 5 is fixedly sleeved on the outer surface of the bidirectional threaded rod 4. The limiting collar 5 is mutually attached to the second positioning block 3. One end of the bidirectional threaded rod 4 is fixedly connected with a limiting disc 7. A lifting adjustment mechanism 6 is threadedly connected to the outer surface of the bidirectional threaded rod 4. A transmission card slot 9 is opened at the other end of the bidirectional threaded rod 4. An output motor 8 is clamped to the other end of the bidirectional threaded rod 4 through the transmission card slot 9;

[0022] Wherein, both sides of the output motor 8 are fixedly connected with fixed connection blocks 10. Both sides of the other end of the top of the mounting base plate 1 are fixedly connected with fixed limiting blocks 11. A fastening bolt 12 is threadedly connected between the fixed limiting blocks 11 and the fixed connection blocks 10.

[0023] Wherein, the outer surface of the fixed connection block 10 is mutually slidably attached to the inner surface of the fixed limiting block 11, which is convenient for the end of the fixed connection block 10 to be quickly inserted into the inside of the fixed limiting block 11 for connection.

[0024] Wherein, one end of the fixed connection block 10 away from the second positioning block 3 is fixedly connected with a connection handle 13, which is convenient for pulling the connection handle 13, and can quickly drive the fixed connection block 10 and the output motor 8 to move, and the operation is convenient.

[0025] Wherein, the lifting adjustment mechanism 6 includes a moving base 14. The top of the moving base 14 is fixedly connected with a connecting deflection head 15. The inner side of the connecting deflection head 15 is connected with a deflection support arm 16 through a connecting shaft. The other end of the deflection support arm 16 is connected with a connecting mounting plate 17 through a connecting deflection head 15. When the bidirectional threaded rod 4 rotates, it is convenient for the moving base 14 to move in opposite directions on the outer surface of the bidirectional threaded rod 4 at the same time, drive the connecting deflection head 15 to move, deflect the deflection support arm 16, and push the connecting mounting plate 17 upward, and vice versa to descend, so as to realize the lifting operation.

[0026] Among them, a guiding and restricting block 18 is fixedly connected to the top of the mounting base plate 1. The guiding and restricting block 18 is located between the first positioning block 2 and the second positioning block 3. A through groove adapted to the guiding and restricting block 18 is formed at the bottom of the moving base 14. When the moving base 14 moves, it can move smoothly, avoiding shaking following the rotation of the bidirectional threaded rod 4.

[0027] Among them, the cross-sectional shape of the guiding and restricting block 18 is T-shaped, which can restrict the moving base 14, preventing the moving base 14 from moving up and down, improving stability, and also avoiding deformation of the bidirectional threaded rod 4 under pressure.

[0028] The working principle of the present utility model: During use, the connecting mounting plate 17 is fixedly connected to the bottom of the cab through bolts, and the mounting base plate 1 is fixedly connected to the chassis. Then, the output motor 8 can drive the bidirectional threaded rod 4 to rotate stably. At this time, the moving bases 14 move in opposite directions on the outer surface of the bidirectional threaded rod 4, driving the connecting deflection heads 15 to move, causing the deflection support arms 16 to deflect, pushing the connecting mounting plate 17 upward, and vice versa for lowering, thereby realizing the lifting operation. During the reciprocating movement of the moving base 14, the bottom of the moving base 14 can move on the outer surface of the guiding and restricting block 18, improving the overall stability in use. When it is necessary to disassemble and maintain the output motor 8, rotate and disassemble the fastening bolt 12, so that the fixed connecting block 10 and the fixed limiting block 11 are no longer fixedly connected. Pull the connecting handle 13 to drive the fixed connecting block 10 and the output motor 8 to move, so that the fixed connecting block 10 disengages from the inside of the fixed limiting block 11, and the output end of the output motor 8 disengages from the inside of the transmission card slot 9, thus quickly disassembling and maintaining. The overall structure is simple and the operation is convenient and fast.

[0029] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are 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 cab lifting mechanism, comprising a mounting base plate (1), characterized in that: One end of the top of the mounting base plate (1) is fixedly connected with a first positioning block (2), the top of the mounting base plate (1) is fixedly connected with a second positioning block (3), a bidirectional threaded rod (4) is movably connected inside the first positioning block (2) and the second positioning block (3), a limiting collar (5) is fixedly sleeved on the outer surface of the bidirectional threaded rod (4), the limiting collar (5) is in mutual fit with the second positioning block (3), one end of the bidirectional threaded rod (4) is fixedly connected with a limiting disc (7), a lifting and adjusting mechanism (6) is connected to the outer surface of the bidirectional threaded rod (4) through threads, a transmission card slot (9) is opened at the other end of the bidirectional threaded rod (4), and an output motor (8) is clamped to the other end of the bidirectional threaded rod (4) through the transmission card slot (9).

2. The cab lifting mechanism according to claim 1, wherein: Fixed connection blocks (10) are fixedly connected to both sides of the output motor (8), fixed limiting blocks (11) are fixedly connected to both sides of the other end of the top of the mounting base plate (1), and fastening bolts (12) are connected between the fixed limiting blocks (11) and the fixed connection blocks (10) through threads.

3. The cab lifting mechanism according to claim 2, characterized in that: The outer surface of the fixed connection block (10) is in mutual sliding fit with the inner surface of the fixed limiting block (11).

4. The cab lifting mechanism according to claim 2, characterized in that: A connection handle (13) is fixedly connected to one end of the fixed connection block (10) away from the second positioning block (3).

5. A cab lifting mechanism according to claim 1, characterized in that: The lifting and adjusting mechanism (6) includes a moving base (14), a connection deflection head (15) is fixedly connected to the top of the moving base (14), a deflection support arm (16) is connected inside the connection deflection head (15) through a connection shaft, and a connection mounting plate (17) is connected to the other end of the deflection support arm (16) through a connection deflection head (15).

6. The cab lifting mechanism according to claim 5, characterized in that: A guiding and limiting block (18) is fixedly connected to the top of the mounting base plate (1), the guiding and limiting block (18) is located between the first positioning block (2) and the second positioning block (3), and a through groove adapted to the guiding and limiting block (18) is opened at the bottom of the moving base (14).

7. The cab lifting mechanism according to claim 6, characterized in that: The cross-sectional shape of the guiding and limiting block (18) is T-shaped.

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