Trolley jacking device

Abstract

The utility model provides a trolley jacking device, and relates to the field of trolleys. The trolley jacking device comprises a bottom plate, three guide rails are fixedly installed at the left end of the upper surface of the bottom plate, sliding blocks are clamped on the guide rails, the three sliding blocks are mutually fixed, the sliding blocks slide left and right relative to the guide rails, two hydraulic cylinders are fixedly installed on the upper surface of the bottom plate, output shafts of the hydraulic cylinders are fixed to the sliding blocks, and a top plate is arranged above the bottom plate. The right end of the top plate is hinged to the right end of the bottom plate, two cams are fixedly installed on a hinged shaft of the top plate and the bottom plate, an ejector rod is obliquely connected into the top plate in an inserted mode, the ejector rod elastically slides relative to the top plate, and the right end of the ejector rod is located between the top plate and the bottom plate. According to the trolley jacking device, by arranging the sliding block, the rocker arm, the hydraulic cylinder, the wedge-shaped block A and the wedge-shaped block B, the trolley jacking device can be used for bearing heavy objects, the heavy load effect is achieved, and the effect that the heavy objects can be poured more easily can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of trolleys, in particular to a jacking device for a trolley. Background Art

[0002] In engineering construction, a trolley is often used to move some goods over a short distance, such as transporting sand, stones, some construction waste, etc. The front end of the trolley is set as an inclined surface, and the goods slide out when tipping. After pulling these goods, the trolley needs to be tipped to make the goods slide out.

[0003] However, the current trolleys are rarely able to transport heavy objects, and it is very difficult to transport packaged sand and cement materials. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a trolley lifting device, which solves the problems raised in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical scheme: a trolley lifting device comprises a bottom plate, three guide rails are fixedly installed on the left end of the upper surface of the bottom plate, and sliders are clamped on the guide rails. The three sliders are fixed to each other, and the sliders slide left and right relative to the guide rails. Two hydraulic cylinders are fixedly installed on the upper surface of the bottom plate, and the output shafts of the hydraulic cylinders are fixed to the sliders. A top plate is provided above the bottom plate, and rocker arms are hinged on the sliders. The other ends of the rocker arms are hinged to the bottom surface of the top plate, and the right end of the top plate is hinged to the right end of the bottom plate. Two cams are fixedly installed on the hinge shafts of the two. A push rod is obliquely inserted in the top plate, and the push rod elastically slides relative to the top plate. The right end of the push rod is between the top plate and the bottom plate, and the right end of the push rod contacts the cam. Wedge blocks A are fixedly installed on the front and rear ends of the bottom surface of the top plate, and wedge blocks B are fixedly installed on the sides of the front and rear sliders that are away from each other. The inclined surfaces of the wedge block B and the wedge block A are in contact, and the wedge block B can push the wedge block A upward when it moves to the right.

[0008] Preferably, a lifting ring is installed at the left end of the guide rail, and the hinge axis between the top plate and the bottom plate is a hollow tubular structure.

[0009] Preferably, a connecting rod is provided between the sliders, the hydraulic cylinder is located between two adjacent sliders, and the output shaft of the hydraulic cylinder is connected to the connecting rod.

[0010] Preferably, the left end of the push rod is located above the top plate, a spring is installed at the mutual sliding position between the push rod and the top plate, and the position where the push rod contacts the cam is an arc structure.

[0011] Preferably, a bottom beam is fixedly mounted on the bottom surface of the bottom plate, and a top beam is fixedly mounted on the upper end of the top plate.

[0012] Preferably, the wedge block A and the wedge block B are both triangular structures, and their inclined surfaces are in contact with each other.

[0013] (III) Beneficial effects

[0014] The utility model provides a trolley lifting device, which has the following beneficial effects:

[0015] 1. The trolley lifting device is provided with a slider, a rocker arm, a hydraulic cylinder, a wedge block A and a wedge block B. When the hydraulic cylinder is contracted under force, the slider can be pulled to the right, and when the slider moves to the right, the wedge block B can push the wedge block A, so that before the rocker arm pushes the top plate, the top plate is first lifted to a certain angle, reducing the pressure on the rocker arm, making it easier for the device to lift heavier goods, and a top beam and a bottom beam are provided, which can be used to carry heavy objects, achieving the effect of heavy loading, and can also achieve the effect of easier dumping of heavy objects.

[0016] 2. The trolley lifting device is provided with a push rod and a cam. When the top plate is lifted, the push rod can gradually contact the tip position of the cam, so that the push rod gradually extends from the top plate. The packaged goods arranged above the top plate can be smoothly poured from above under the gradual pushing of the push rod, and no manual intervention is required, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a front view of the structure of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model;

[0020] Figure 4 It is a structural diagram of the push rod and the cam of the utility model.

[0021] Among them, 1 is a bottom plate, 2 is a guide rail, 3 is a slider, 4 is a hydraulic cylinder, 5 is a top plate, 6 is a rocker arm, 7 is a cam, 8 is a push rod, 9 is a wedge block A, 10 is a wedge block B, 11 is a lifting ring, 12 is a connecting rod, 13 is a bottom beam, and 14 is a top beam. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a trolley lifting device:

[0024] like Figure 1-4 As shown, it includes a bottom plate 1, three guide rails 2 are fixedly installed on the left end of the upper surface of the bottom plate 1, and sliders 3 are clamped on the guide rails 2. The three sliders 3 are fixed to each other, and the sliders 3 slide left and right relative to the guide rails 2. Two hydraulic cylinders 4 are fixedly installed on the upper surface of the bottom plate 1, and the output shafts of the hydraulic cylinders 4 are fixed to the sliders 3. A connecting rod 12 is provided between the sliders 3. The hydraulic cylinder 4 is between two adjacent sliders 3, and the output shaft of the hydraulic cylinder 4 is connected to the connecting rod 12. A top plate 5 is provided above the bottom plate 1, and the bottom surface of the bottom plate 1 A bottom beam 13 is fixedly installed on the top, and the bottom of the bottom beam 13 can be installed with a chassis or directly installed with wheels. A top beam 14 is fixedly installed on the upper end of the top plate 5, and the upper end of the top beam 14 can be installed with a vehicle body. The overall arrangement of the bottom beam 13 and the top beam 14 can achieve the effect of strengthening the structure and make it easier to carry heavy objects. The sliders 3 are all hinged with rocker arms 6, and the other end of the rocker arms 6 is hinged to the bottom surface of the top plate 5. The strength of the three rocker arms 6 can easily lift tons of cargo. The right end of the top plate 5 is hinged to the right end of the bottom plate 1 Two cams 7 are fixedly installed on the hinge shaft of the two, a lifting ring 11 is installed on the left end of the guide rail 2, the hinge shaft of the top plate 5 and the bottom plate 1 is a hollow tubular structure, a push rod 8 is obliquely inserted in the top plate 5, the push rod 8 elastically slides relative to the top plate 5, the right end of the push rod 8 is between the top plate 5 and the bottom plate 1, the right end of the push rod 8 is in contact with the cam 7, and the left end of the push rod 8 is above the top plate 5. A spring is installed at the mutual sliding position of the push rod 8 and the top plate 5, and the function of elastic sliding between the two is realized by the spring. The position where the push rod 8 contacts the cam 7 is an arc-shaped structure. Wedge blocks A9 are fixedly installed on the front and rear ends of the bottom surface of the top plate 5. Wedge blocks B10 are fixedly installed on the sides of the front and rear sliders 3 that are away from each other. The inclined surfaces of the wedge blocks B10 and A9 are in contact. When the wedge block B10 moves to the right, it can push the wedge block A9 upward. The wedge blocks A9 and B10 are both triangular structures, and the inclined surfaces of the two are in contact with each other. Grease is applied to the contact position between the wedge blocks A9 and B10.

[0025] During use, when the hydraulic cylinder 4 is forced to contract, the slider 3 can be pulled to the right, and when the slider 3 moves to the right, the wedge block B10 can push the wedge block A9, so that before the rocker arm 6 pushes the top plate 5, the top plate 5 is first lifted to a certain angle to reduce the pressure on the rocker arm 6, making it easier for the device to lift heavier goods. When the top plate is lifted, the push rod 8 can gradually contact the tip position of the cam 7, so that the push rod 8 gradually extends from the top plate 5, and the packaged goods arranged above the top plate 5 can be smoothly poured from above under the gradual pushing of the push rod 8.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trolley lifting device, comprising a bottom plate (1), characterized in that: Three guide rails (2) are fixedly mounted on the left end of the upper surface of the bottom plate (1), and sliders (3) are clamped on the guide rails (2). The three sliders (3) are fixed to each other, and the sliders (3) slide left and right relative to the guide rails (2). Two hydraulic cylinders (4) are fixedly mounted on the upper surface of the bottom plate (1), and the output shafts of the hydraulic cylinders (4) are fixed to the sliders (3). A top plate (5) is provided above the bottom plate (1), and rocker arms (6) are hinged on the sliders (3). The other ends of the rocker arms (6) are hinged to the bottom surface of the top plate (5), and the right end of the top plate (5) is hinged to the right end of the bottom plate (1). The hinge axes of the two are connected. Two cams (7) are fixedly installed, a push rod (8) is obliquely inserted in the top plate (5), the push rod (8) elastically slides relative to the top plate (5), the right end of the push rod (8) is between the top plate (5) and the bottom plate (1), the right end of the push rod (8) contacts the cam (7), wedge blocks A (9) are fixedly installed at both the front and rear ends of the bottom surface of the top plate (5), and wedge blocks B (10) are fixedly installed on the sides of the front and rear sliding blocks (3) that are away from each other, the inclined surfaces of the wedge block B (10) and the wedge block A (9) are in contact, and when the wedge block B (10) moves to the right, it can push the wedge block A (9) upward.

2. A trolley lifting device according to claim 1, characterized in that: A lifting ring (11) is installed at the left end of the guide rail (2), and the hinge axis between the top plate (5) and the bottom plate (1) is a hollow tubular structure.

3. A trolley lifting device according to claim 2, characterized in that: A connecting rod (12) is provided between the sliders (3), the hydraulic cylinder (4) is located between two adjacent sliders (3), and the output shaft of the hydraulic cylinder (4) is connected to the connecting rod (12).

4. A trolley lifting device according to claim 3, characterized in that: The left end of the push rod (8) is located above the top plate (5), a spring is installed at the mutual sliding position between the push rod (8) and the top plate (5), and the position where the push rod (8) contacts the cam (7) is an arc structure.

5. A trolley lifting device according to claim 4, characterized in that: A bottom beam (13) is fixedly mounted on the bottom surface of the bottom plate (1), and a top beam (14) is fixedly mounted on the upper end of the top plate (5).

6. A trolley lifting device according to claim 5, characterized in that: The wedge block A (9) and the wedge block B (10) are both triangular structures, and their inclined surfaces are in contact with each other.

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