Height adjusting mechanism for overhead guard of forklift

Abstract

The utility model belongs to the technical field of forklifts, and particularly relates to a forklift overhead guard height adjusting mechanism which comprises a mounting base, a mounting plate and a connecting plate are fixedly mounted in the mounting base, a servo motor is fixedly mounted on the surface of the mounting plate, and a rotating shaft is fixedly mounted at the output end of the servo motor. And a driving wheel and a driven wheel are rotationally mounted on the surface of the connecting plate, and the rotating shaft is fixedly connected with the driving wheel. A rotating shaft at the output end of a servo motor drives a driving wheel and a driving bevel gear to rotate, the driving wheel is matched with a synchronous belt to drive a driven wheel to rotate in a transmission mode, and the driving bevel gear is matched with a driven bevel gear connected with the driving bevel gear in a meshed mode to drive a threaded rod to rotate. The movable sleeve block can be driven to move, so that the connecting column and the fixing plate are driven to move, the height of the overhead guard is effectively adjusted, the adjustable degree of the device is high, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fork truck, concretely relates to a fork truck roof guard height adjusting mechanism. BACKGROUND

[0002] The fork truck is an industrial handling vehicle, which is used for loading, unloading, stacking and short-distance transporting of goods on pallets. It is commonly used for transporting large objects in warehouses, and is usually driven by fuel or battery. The technical parameters of the fork truck are used to show the structural characteristics and working performance of the fork truck. The main technical parameters include rated lifting capacity, load center distance, maximum lifting height, door frame inclination angle, maximum driving speed, minimum turning radius, minimum ground clearance, and wheelbase, tread, etc.

[0003] During the operation of the fork truck, the height of the fork truck roof guard may need to be raised or lowered. For example, when the fork truck is transporting goods at a high place or in a place with height limit. However, the existing fork truck roof guard does not have a height adjusting mechanism, which reduces the practicability. The problem addressed by the device is how to set a fork truck roof guard height adjusting mechanism with high adjustability to increase the convenience and practicability of the fork truck during use. CONTENT OF THE UTILITY MODEL

[0004] To solve the problems in the background art, the utility model provides a fork truck roof guard height adjusting mechanism, which solves the problem of how to set a fork truck roof guard height adjusting mechanism with high adjustability to increase the convenience and practicability of the fork truck during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fork truck roof guard height adjusting mechanism, comprising a mounting base, a mounting plate and a connecting plate are fixedly installed inside the mounting base, a servo motor is fixedly installed on the surface of the mounting plate, a rotating shaft is fixedly installed on the output end of the servo motor, a driving wheel and a driven wheel are rotatably installed on the surface of the connecting plate, and the rotating shaft is fixedly connected with the driving wheel, a synchronous belt is transmissionally installed on the surface of the driving wheel and the driven wheel, a connecting shaft is fixedly installed on the surface of the driven wheel, a driving bevel gear is fixedly installed on the left and right ends of the rotating shaft and the connecting shaft, a screw rod column is fixedly installed around the top of the mounting base, a threaded rod is rotatably installed inside the screw rod column, a driven bevel gear is fixedly installed on the bottom of the threaded rod, and the driving bevel gear is meshingly connected with the driven bevel gear, a movable sleeve block is screwedly installed on the surface of the threaded rod, a connecting column is fixedly installed on the top of the movable sleeve block, a fixed plate is fixedly installed on the top of the connecting column, and a movable top plate is slidably installed on the inner side of the fixed plate.

[0006] Preferably, the inner side of the connecting column is fixedly provided with a horizontal plate, the surface of the horizontal plate is provided with a sliding groove, the left and right sides of the sliding groove are both slidably provided with a connecting rod, the surface of the connecting rod is movably hinged with a supporting rod, and the supporting rod is fixedly connected with the movable top plate, and the surface of the supporting rod is fixedly provided with a bearing.

[0007] Preferably, the left and right sides of the front side of the horizontal plate are both fixedly provided with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with the connecting rod, the surface of the right connecting column is fixedly provided with a triangular block, and the triangular block is fixedly connected with the right electric telescopic rod.

[0008] Preferably, the surface of the left side of the mounting base is provided with a plurality of heat dissipation grooves, and the plurality of heat dissipation grooves are linearly arranged on the surface of the mounting base.

[0009] Preferably, the upper side of the rotating shaft is fixedly provided with a supporting plate, and the threaded rod is rotatably connected with the supporting plate.

[0010] Preferably, the left and right sides of the surface of the movable sleeve block are both fixedly provided with a limiting block, and the limiting block is slidably connected with the screw column.

[0011] Preferably, the surface of the connecting column is fixedly provided with a controller, and the controller is electrically connected with the servo motor.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The rotating shaft of the output end of the servo motor drives the rotation of the driving wheel and the driving bevel gear, the driving wheel drives the rotation of the driven wheel through the synchronous belt, the driving bevel gear drives the rotation of the threaded rod through the meshing connection of the driven bevel gear, the movable sleeve block is installed in threaded mode on the surface of the threaded rod, the threaded rod is rotated, the movable sleeve block is moved, the connecting column and the fixed plate are moved, the height of the roof support frame is effectively adjusted, the device has high adjustment degree and high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0015] Figure 1 It is the three-dimensional structure diagram of the utility model;

[0016] Figure 2 It is the internal section view of the mounting base of the utility model;

[0017] Figure 3 It is the internal section view of the screw column of the utility model;

[0018] Figure 4 It is an enlarged schematic view of the movable roof of the utility model.

[0019] In the figure: 1, mounting base; 2, mounting plate; 3, servo motor; 4, connecting plate; 5, driving wheel; 6, driven wheel; 7, synchronous belt; 8, rotating shaft; 9, driving bevel gear; 10, screw column; 11, threaded rod; 12, driven bevel gear; 13, movable sleeve block; 14, connecting column; 15, fixed plate; 16, movable roof; 17, cross plate; 18, sliding groove; 19, connecting rod; 20, support rod; 21, bearing; 22, electric telescopic rod; 23, triangular block; 24, heat dissipation groove; 25, support plate; 26, limiting block; 27, controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides the following technical scheme: a forklift protective roof frame height adjusting mechanism, including installation base 1, the inside fixed mounting of installation base 1 has mounting plate 2 and connecting plate 4, the surface fixed mounting of mounting plate 2 has servo motor 3, the output fixed mounting of servo motor 3 has rotating shaft 8, the surface rotation mounting of connecting plate 4 has driving wheel 5 and driven wheel 6, and rotating shaft 8 is fixedly connected with driving wheel 5, and the surface transmission installation of driving wheel 5 and driven wheel 6 has synchronous belt 7, and the surface fixed mounting of driven wheel 6 has connecting shaft, and the left and right two ends of rotating shaft 8 and connecting shaft are all fixedly installed with driving bevel gear 9, and the periphery of installation base 1 top is all fixedly installed with screw column 10, and the inside rotation installation of screw column 10 has threaded rod 11, and the bottom fixed mounting of threaded rod 11 has driven bevel gear 12, and driving bevel gear 9 is engaged with driven bevel gear 12, and the surface screw thread of threaded rod 11 is installed with movable sleeve block 13, and the top fixed mounting of movable sleeve block 13 has connecting column 14, and the top fixed mounting of connecting column 14 has fixed plate 15, and the inside sliding installation of fixed plate 15 has movable roof 16.

[0022] The rotation of the output shaft 8 of the servo motor 3 drives the rotation of the driving wheel 5 and the driving bevel gear 9, the driving wheel 5 drives the rotation of the driven wheel 6 through the synchronous belt 7, and the driving bevel gear 9 drives the rotation of the threaded rod 11 in the screw column 10 through the meshing connection of the driven bevel gear 12, the threaded rod 11 drives the movement of the movable sleeve block 13 through the rotation of the threaded rod 11, the movable sleeve block 13 drives the movement of the connecting column 14 and the fixed plate 15, and the height of the roof support frame is effectively adjusted, the device has high adjustment degree and high practicability, the setting of the horizontal plate 17, the sliding groove 18, the connecting rod 19, the supporting rod 20 and the bearing 21 provides a method for adjusting the height of the cockpit according to the height of the driver, the height of the movable roof plate 16 is adjusted through the sliding of the connecting rod 19 in the sliding groove 18 and the use of the supporting rod 20, the setting of the electric telescopic rod 22 and the triangular block 23 facilitates the better sliding of the connecting rod 19 in the sliding groove 18, and the electric telescopic rod 22 is better installed through the setting of the triangular block 23, which increases the practicability of the structure, the setting of the heat dissipation groove 24 on the left side of the surface of the mounting base 1 facilitates the better heat dissipation of the servo motor 3, avoids damage to the device caused by high temperature, the limiting block 26 is fixedly installed on the left and right sides of the surface of the movable sleeve block 13, and the limiting block 26 is slidably connected with the screw column 10, which facilitates the better movement of the movable sleeve block 13 and limits the movement range of the movable sleeve block 13, avoids the movement out of the screw column 10, and increases the protection of the structure, the supporting plate 25 is fixedly installed above the rotating shaft 8, and the threaded rod 11 is rotatably connected with the supporting plate 25, which facilitates the stable installation of the threaded rod 11, the controller 27 is fixedly installed on the surface of the connecting column 14, and the controller 27 is electrically connected with the servo motor 3, which facilitates the better control of the rotation amplitude and the switch of the servo motor 3 according to the use condition, makes the adjustment of the height of the roof support frame more controllable, increases the use comfort, and all the electrical equipment in the device is powered by an external power supply.

[0023] In one aspect of the embodiment, the setting of the horizontal plate 17, the sliding groove 18, the connecting rod 19, the supporting rod 20 and the bearing 21 provides a method for adjusting the height of the cockpit according to the height of the driver, the height of the movable roof plate 16 is adjusted through the sliding of the connecting rod 19 in the sliding groove 18 and the use of the supporting rod 20, the setting of the electric telescopic rod 22 and the triangular block 23 facilitates the better sliding of the connecting rod 19 in the sliding groove 18, and the electric telescopic rod 22 is better installed through the setting of the triangular block 23, which increases the practicability of the structure.

[0024] In an aspect of the embodiment, the left side of the surface of the mounting base 1 is provided with the heat dissipation groove 24, which facilitates better heat dissipation of the servo motor 3 and avoids damage to the device due to high temperature, the left and right sides of the surface of the movable sleeve block 13 are fixedly provided with the limiting block 26, and the limiting block 26 is in sliding connection with the screw rod column 10, which facilitates better movement of the movable sleeve block 13 and limits the movement range, avoids moving out of the screw rod column 10, and increases the protection of the structure.

[0025] In an aspect of the embodiment, the upper side of the rotating shaft 8 is fixedly provided with the support plate 25, and the threaded rod 11 is in rotational connection with the support plate 25, which facilitates more stable installation of the threaded rod 11, the surface of the connecting column 14 is fixedly provided with the controller 27, and the controller 27 is in electrical connection with the servo motor 3, which facilitates better control of the rotating amplitude and the switch of the servo motor 3 according to the use condition, makes the adjustment of the height of the roof frame more controllable, and increases the use comfort.

[0026] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A height adjustment mechanism for a forklift overhead guard comprising a mounting base (1) characterised in that: The inside of the mounting base (1) is fixedly mounted with a mounting plate (2) and a connecting plate (4), the surface of the mounting plate (2) is fixedly mounted with a servo motor (3), the output end of the servo motor (3) is fixedly mounted with a rotating shaft (8), the surface of the connecting plate (4) is rotatably mounted with a driving wheel (5) and a driven wheel (6), the rotating shaft (8) is fixedly connected with the driving wheel (5), the surface of the driving wheel (5) and the driven wheel (6) is drivingly mounted with a synchronous belt (7), the surface of the driven wheel (6) is fixedly mounted with a connecting shaft, the left and right ends of the rotating shaft (8) and the connecting shaft are fixedly mounted with driving bevel gears (9), the top of the mounting base (1) is fixedly mounted with screw columns (10) around, the inside of the screw column (10) is rotatably mounted with a threaded rod (11), the bottom of the threaded rod (11) is fixedly mounted with a driven bevel gear (12), the driving bevel gear (9) is meshedly connected with the driven bevel gear (12), the surface of the threaded rod (11) is threadedly mounted with a movable sleeve block (13), the top of the movable sleeve block (13) is fixedly mounted with a connecting column (14), the top of the connecting column (14) is fixedly mounted with a fixed plate (15), the inside of the fixed plate (15) is slidingly mounted with a movable top plate (16).

2. A height adjustment mechanism for a forklift protection roof rack according to claim 1, characterized in that: The inside of the connecting column (14) is fixedly mounted with a cross plate (17), the surface of the cross plate (17) is provided with a sliding groove (18), the left and right sides of the sliding groove (18) are slidingly mounted with connecting rods (19), the surface of the connecting rod (19) is movably hinged with a supporting rod (20), the supporting rod (20) is fixedly connected with the movable top plate (16), the surface of the supporting rod (20) is fixedly mounted with a bearing (21).

3. A height adjustment mechanism for a forklift protector as defined in claim 2, characterized in that: The left and right sides of the front side of the cross plate (17) are fixedly mounted with electric telescopic rods (22), the output end of the electric telescopic rod (22) is fixedly connected with the connecting rod (19), the surface of the right connecting column (14) is fixedly mounted with a triangular block (23), the triangular block (23) is fixedly connected with the right electric telescopic rod (22).

4. The height adjustment mechanism for a forklift overhead guard according to claim 1, wherein: The left side of the surface of the mounting base (1) is provided with a plurality of heat dissipation grooves (24), the plurality of heat dissipation grooves (24) are linearly arranged on the surface of the mounting base (1).

5. The height adjustment mechanism for a forklift overhead guard according to claim 1, wherein: The upper side of the rotating shaft (8) is fixedly mounted with a supporting plate (25), the threaded rod (11) is rotatably connected with the supporting plate (25).

6. A lift truck superstructure height adjustment mechanism as claimed in claim 1, wherein: The left and right sides of the surface of the movable sleeve block (13) are fixedly mounted with limit blocks (26), the limit blocks (26) are slidingly connected with the screw column (10).

7. The height adjustment mechanism for a forklift overhead guard according to claim 1, wherein: The surface of the connecting column (14) is fixedly mounted with a controller (27), the controller (27) is electrically connected with the servo motor (3).

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