Built-in tipping device of forklift

Abstract

The utility model belongs to the technical field of forklift accessories, and particularly relates to a forklift built-in tipping device which comprises a support, a sliding frame is connected in the support in a sliding mode, two first hydraulic cylinders are fixedly installed on the rear side of the sliding frame, and the bottom ends of the two first hydraulic cylinders are both fixedly installed on the rear side of the support. The lifting frame is installed on the sliding frame, the right end of the rotating shaft penetrates through the right side of the lifting frame and is rotationally connected with the inner wall of the left side of the lifting frame, and the rotating shaft is fixedly sleeved with two pallet forks; the number of the second hydraulic cylinders is two, the rear ends of the two second hydraulic cylinders are rotationally connected to the lifting frame, and the front ends of the two second hydraulic cylinders are rotationally connected to the two pallet forks correspondingly; the pressure reduction protection of the second hydraulic cylinder is realized through a simple structure, the overpressure damage of the second hydraulic cylinder is avoided, the maintenance cost is reduced, the normal use of the forklift is ensured, and the practicability is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to a forklift accessory technical field especially relates to a forklift built -in type tipping device. BACKGROUND

[0002] Forklifts are increasingly used in industry, and are industrial handling vehicles that are used for loading, unloading, stacking, and short-distance transporting of goods on pallets. Due to their safety, efficiency, and flexibility, they are widely used in factories, warehouses, transportation, and ports for the handling and stacking of goods. The forklift tipping device is an accessory for forklifts that aims to improve the efficiency of material handling and dumping. By using the forklift tipping device, the flexibility and safety of material handling can be significantly improved, making it an indispensable device in modern logistics operations.

[0003] In the prior art, the existing forklift tipping device generally uses hydraulic cylinders as the driving force to achieve the tilting operation of the forks. When the goods are heavy, the pressure on the hydraulic cylinders is too large, which can easily cause damage to the hydraulic cylinders over time, increasing maintenance costs and affecting the normal use of the forklift. Therefore, we propose a forklift built-in tipping device to solve the above problems. SUMMARY

[0004] The utility model discloses a forklift built-in tipping device to solve the shortcomings of the prior art, that is, the forklift tipping device generally uses hydraulic cylinders as the driving force to achieve the tilting operation of the forks. When the goods are heavy, the pressure on the hydraulic cylinders is too large, which can easily cause damage to the hydraulic cylinders over time, increasing maintenance costs and affecting the normal use of the forklift.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A forklift built-in tipping device, comprising a bracket, a sliding connection inside the bracket, a sliding bracket, a first hydraulic cylinder fixedly installed on the rear side of the sliding bracket, and a second hydraulic cylinder fixedly installed on the bottom end of the first hydraulic cylinder, the tipping device further comprising:

[0007] A lifting frame is installed on the sliding bracket, a rotating shaft penetrates the right side of the lifting frame and is rotatably connected to the left side inner wall of the lifting frame, and two forks are fixedly sleeved on the rotating shaft;

[0008] Two second hydraulic cylinders are provided, the rear end of each second hydraulic cylinder is rotatably connected to the lifting frame, and the front end of each second hydraulic cylinder is rotatably connected to each fork;

[0009] A box is fixedly installed on the right side of the lifting frame, the right end of the rotating shaft penetrates the box and extends into the interior of the box;

[0010] A positioning assembly is arranged in the interior of the box body and cooperates with the rotating shaft.

[0011] As a preferred scheme of the utility model, the front side of the box body is hingedly connected with an inspection door.

[0012] As a preferred scheme of the utility model, the positioning assembly comprises a limiting disc, a rectangular ring, a limiting rod, a vertical rod, a triangular block, a motor and an eccentric wheel, the limiting disc is fixedly installed at the front end of the rotating shaft, a plurality of limiting grooves are formed in the limiting disc, the limiting rod is slidingly connected to the inner wall of the box body, the front end of the limiting rod is detachably inserted into the corresponding limiting groove, the rear end of the limiting rod is elastically connected to the rear inner wall of the box body, the top end of the vertical rod is fixedly installed at the bottom of the limiting rod, the triangular block is fixedly installed at the front side of the vertical rod, the motor is fixedly installed on the bottom inner wall of the box body, the eccentric wheel is fixedly installed on the output shaft of the motor, and the eccentric wheel is in contact with the top of the triangular block.

[0013] As a preferred scheme of the utility model, the plurality of limiting grooves are annularly and equidistantly distributed on the outer side of the limiting disc.

[0014] As a preferred scheme of the utility model, a spring is fixedly installed on the rear inner wall of the box body, and the front end of the spring is fixedly installed on the limiting rod.

[0015] As a preferred scheme of the utility model, a rectangular ring is fixedly connected to the top inner wall of the box body, and the rectangular ring is slidingly sleeved on the limiting rod.

[0016] Beneficial effects:

[0017] 1. The second hydraulic cylinder is started to drive the fork and the rotating shaft to rotate, so that the front and rear tilting of the fork is realized, the material is quickly and stably transported and poured, and the fork truck is suitable for various types of materials.

[0018] 2. The positioning assembly is arranged to limit and fix the fork and the goods after being tilted by the second hydraulic cylinder, stability is ensured, the second hydraulic cylinder is protected from overpressure damage, and the second hydraulic cylinder is protected from overpressure damage.

[0019] The utility model discloses a simple structure for realizing the pressure reduction protection of the second hydraulic cylinder, avoiding the overpressure damage of the second hydraulic cylinder, reducing the maintenance cost, ensuring the normal use of the fork truck and being high in practicability. ACCURACY OF DRAWINGS

[0020] Figure 1 It is the three-dimensional front view of the structure of the utility model;

[0021] Figure 2 It is the three-dimensional rear view of the structure of the utility model;

[0022] Figure 3 The structure three-dimensional view of the box body of the utility model;

[0023] Figure 4 The structure three-dimensional sectional view of the box body of the utility model.

[0024] In the figure: 1, support; 2, sliding frame; 3, first hydraulic cylinder; 4, lifting frame; 5, rotating shaft; 6, fork; 7, second hydraulic cylinder; 8, box body; 9, limiting disc; 10, limiting groove; 11, rectangular ring; 12, limiting rod; 13, spring; 14, vertical rod; 15, triangular block; 16, motor; 17, eccentric wheel. DETAILED DESCRIPTION

[0025] 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, not all the embodiments.

[0026] EMBODIMENT

[0027] WITH REFERENCE Figures 1-4 A built-in tipping device of a forklift truck, comprising a support 1, a sliding frame 2 is slidably connected in the inside of the support 1, two first hydraulic cylinders 3 are fixedly installed on the rear side of the sliding frame 2, the bottom ends of the two first hydraulic cylinders 3 are fixedly installed on the rear side of the support 1, and the tipping device further comprises:

[0028] A lifting frame 4 is installed on the sliding frame 2, the right end of a rotating shaft 5 penetrates through the right side of the lifting frame 4 and is rotatably connected with the left side inner wall of the lifting frame 4, and two forks 6 are fixedly sleeved on the rotating shaft 5;

[0029] Two second hydraulic cylinders 7 are arranged, the rear ends of the two second hydraulic cylinders 7 are rotatably connected on the lifting frame 4, and the front ends of the two second hydraulic cylinders 7 are rotatably connected on the two forks 6 respectively;

[0030] A box body 8 is fixedly installed on the right side of the lifting frame 4, the right end of the rotating shaft 5 penetrates through the box body 8 and extends to the inside of the box body 8;

[0031] A positioning assembly is arranged in the inside of the box body 8, and the positioning assembly cooperates with the rotating shaft 5.

[0032] Through the above structure: by starting the second hydraulic cylinder 7, the fork 6 and the rotating shaft 5 can be driven to rotate, so that the front and rear tilting of the fork 6 can be realized, the material can be quickly and stably transported and poured, and it is suitable for various types of materials.

[0033] As a preferred scheme of the utility model, a maintenance door is hinged on the front side of the box body 8, and through the arrangement of the maintenance door, personnel can conveniently maintain the parts in the inside of the box body 8.

[0034] As a preferred scheme of the utility model, the positioning assembly includes the limiting disc 9, the rectangular ring 11, the limiting rod 12, the vertical rod 14, the triangular block 15, the motor 16 and the eccentric wheel 17, the limiting disc 9 is fixedly installed at the front end of the rotating shaft 5, a plurality of limiting grooves 10 are formed on the limiting disc 9, the limiting rod 12 is slidably connected on the inner wall of the box 8, the front end of the limiting rod 12 is detachably inserted in the corresponding limiting groove 10, the rear end of the limiting rod 12 is elastically connected with the rear inner wall of the box 8, the top end of the vertical rod 14 is fixedly installed at the bottom of the limiting rod 12, the triangular block 15 is fixedly installed at the front side of the vertical rod 14, the motor 16 is fixedly installed on the bottom inner wall of the box 8, the eccentric wheel 17 is fixedly installed on the output shaft of the motor 16, the eccentric wheel 17 is in contact with the top of the triangular block 15, the eccentric wheel 17 can be driven to rotate by starting the motor 16, at this time, the eccentric rotating characteristic of the eccentric wheel 17 can extrude the inclined surface at the top of the triangular block 15, the extrusion cooperation between the eccentric wheel 17 and the inclined surface of the triangular block 15 can make the vertical rod 14 move backward and drive the limiting rod 12 to move backward, at this time, the limiting rod 12 is disconnected with the corresponding limiting groove 10, so that the second hydraulic cylinder 7 can conveniently drive the two forks 6 and the rotating shaft 5 to tilt forward and backward, here, the motor 16 is reversely rotated and the extrusion of the eccentric wheel 17 on the triangular block 15 is disconnected, then the elastic reset characteristic of the spring 13 can drive the limiting rod 12 to move back, at this time, the front end of the limiting rod 12 is inserted in the corresponding limiting groove 10, here, the insertion limiting between the limiting rod 12 and the limiting groove 10 can limit and fix the forks 6 and the goods after being tilted by the second hydraulic cylinder 7, guaranteeing the stability, the second hydraulic cylinder 7 can be protected from overpressure damage.

[0035] As a preferred scheme of the utility model, the plurality of limiting grooves 10 are annularly and equidistantly distributed on the outside of the limiting disc 9, the annular and equidistant arrangement of the limiting grooves 10 can facilitate the accurate insertion between the limiting rod 12 and the limiting groove 10.

[0036] As a preferred scheme of the utility model, the spring 13 is fixedly installed on the rear inner wall of the box 8, the front end of the spring 13 is fixedly installed on the limiting rod 12, the spring 13 can drive the limiting rod 12 to elastically reset.

[0037] As a preferred scheme of the utility model, the rectangular ring 11 is fixedly connected on the top inner wall of the box 8, the rectangular ring 11 is slidably sleeved on the limiting rod 12, the rectangular ring 11 can stably slide and support and slide limit the limiting rod 12.

[0038] It needs to be explained that: the specific use of which type of support 1, slide 2, the first hydraulic cylinder 3, lifting frame 4, the second hydraulic cylinder 7 and motor 16, the person skilled in the related technical personnel self-selection, and above about support 1, slide 2, the first hydraulic cylinder 3, lifting frame 4, the second hydraulic cylinder 7 and motor 16 all belong to the prior art, the present scheme is not described.

[0039] The working principle of the utility model: in use, first the first hydraulic cylinder 3, the second hydraulic cylinder 7 and motor 16 joint fork truck's internal power, then through starting the second hydraulic cylinder 7 can drive fork 6 and shaft 5 to rotate, thereby can realize the front and back of fork 6 tilting, can quickly, stably transport and dump material, be suitable for various types of material, here through starting motor 16 can drive eccentric wheel 17 to rotate, at this time through the eccentric rotation characteristic of eccentric wheel 17, can extrude the inclined plane of triangular block 15 top, through the extrusion fit between eccentric wheel 17 and triangular block 15 inclined plane, can make the rear movement of vertical rod 14 and drive limit rod 12 rear movement, at this time limit rod 12 and corresponding limit slot 10 between the insertion joint limit are cancelled, thereby can conveniently drive two forks 6 and shaft 5 of the second hydraulic cylinder 7 to tilt, here through the reverse rotation of motor 16 and cancel the extrusion of eccentric wheel 17 to triangular block 15, then through the elastic reset characteristic of spring 13, can drive limit rod 12 movement reset, at this time the front end of limit rod 12 will be inserted in the inside of corresponding limit slot 10, here through the insertion joint limit between limit rod 12 and limit slot 10, can limit and fix after the second hydraulic cylinder 7 drives fork 6 and cargo to tilt, guarantee stability, can carry out pressure relief protection to the second hydraulic cylinder 7, avoid the damage of the second hydraulic cylinder 7 overpressure.

[0040] The above, only for the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. A built-in tilting device for a forklift truck, comprising a support (1), a sliding frame (2) is slidably connected inside the support (1), two first hydraulic cylinders (3) are fixedly installed on the rear side of the sliding frame (2), and the bottom ends of the two first hydraulic cylinders (3) are fixedly installed on the rear side of the support (1), characterized in that, The tipping device further comprises: A lifting frame (4) is mounted on the sliding frame (2), the right end of the rotating shaft (5) penetrates through the right side of the lifting frame (4) and is rotationally connected with the inner wall of the left side of the lifting frame (4), and two forks (6) are fixedly sleeved on the rotating shaft (5); Two second hydraulic cylinders (7) are arranged, the rear ends of the two second hydraulic cylinders (7) are rotationally connected with the lifting frame (4), and the front ends of the two second hydraulic cylinders (7) are respectively rotationally connected with the two forks (6); A box body (8) is fixedly installed on the right side of the lifting frame (4), the right end of the rotating shaft (5) penetrates through the box body (8) and extends into the box body (8); A positioning assembly is arranged in the box body (8), and the positioning assembly is matched with the rotating shaft (5).

2. A built-in tilting device for a fork lift truck according to claim 1, characterized in that The front side of the box body (8) is hingedly connected with an inspection door.

3. A built-in tilt for a fork truck as defined in claim 1, wherein, The positioning assembly comprises a limiting disc (9), a rectangular ring (11), a limiting rod (12), a vertical rod (14), a triangular block (15), a motor (16) and an eccentric wheel (17), the limiting disc (9) is fixedly installed on the front end of the rotating shaft (5), a plurality of limiting grooves (10) are formed in the limiting disc (9), the limiting rod (12) is slidingly connected with the inner wall of the box body (8), the front end of the limiting rod (12) is detachably inserted into the corresponding limiting groove (10), the rear end of the limiting rod (12) is elastically connected with the rear inner wall of the box body (8), the top end of the vertical rod (14) is fixedly installed on the bottom of the limiting rod (12), the triangular block (15) is fixedly installed on the front side of the vertical rod (14), the motor (16) is fixedly installed on the bottom inner wall of the box body (8), the eccentric wheel (17) is fixedly installed on the output shaft of the motor (16), and the eccentric wheel (17) is in contact with the top of the triangular block (15).

4. A built-in tilting device for a fork lift truck according to claim 3, characterized in that The plurality of limiting grooves (10) are annularly and equidistantly distributed on the outer side of the limiting disc (9).

5. A built-in tilting device for a fork lift truck according to claim 3, characterized in that The spring (13) is fixedly installed on the rear inner wall of the box body (8), and the front end of the spring (13) is fixedly installed on the limiting rod (12).

6. A built-in tilt for a fork truck as defined in claim 3 wherein, The rectangular ring (11) is fixedly connected to the top inner wall of the box body (8) and is slidingly sleeved on the limiting rod (12).

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