A fixed scissor type hydraulic lifting platform with pneumatic lock

Abstract

The present invention relates to the technical field of hydraulic lifting platforms, and in particular to a fixed scissor-type hydraulic lifting platform with a pneumatic lock. Its technical solution includes: a base frame, a first support rod, a second support rod, an L-shaped platform plate, a top frame and a cross bar. A third rotating mechanism is respectively installed at the four corners of the top end of the base frame and the four corners of the bottom end of the top frame. The upper and lower ends of the two groups of first support rods and second support rods are respectively connected to the third rotating mechanism. A flat plate is fixed to the top of the top frame. Slots are respectively provided on both sides of the flat plate. A plug-in plate is fixed to one side of the vertical end of the L-shaped platform plate. The plug-in plate is correspondingly inserted into the slot. The plug-in plate is fixed to the flat plate by a first bolt. The vertical end of the L-shaped platform plate is fixed to the side of the flat plate by a second bolt. An inclined plate is fixed to the bottom of the L-shaped platform plate. The present invention has the advantages of selectively installing L-shaped platform plates on both sides of the flat plate, correspondingly increasing the working area, being able to accommodate more staff, and expanding the scope of operation.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic lifting platforms, in particular to a fixed scissor-type hydraulic lifting platform with a pneumatic lock. Background Art

[0002] The scissor lift is a widely used special equipment for aerial work. Its scissor lift mechanical structure makes the lifting platform have higher stability after lifting, a wide working platform and a higher load-bearing capacity, making the aerial work range larger and suitable for multiple people to work at the same time. It makes aerial work more efficient and safer. It is a widely used aerial work lifting equipment. The current scissor lift is basically equipped with a pneumatic lock.

[0003] The scissor-type hydraulic lift relies on the expansion and folding of the scissor-type support frame to complete the lifting and lowering of the cargo platform. Its power is to push the expansion and folding of the scissors through the extension and contraction of the oil cylinder. Its scissor-type mechanical structure makes the lifting platform have higher stability, and the wide working platform and high carrying capacity make the high-altitude operation range larger and suitable for multiple people to work at the same time. It makes high-altitude operations more efficient and safer. Since the extension and contraction speed of the oil cylinder is determined by the flow rate of the oil pump, the speed of the oil cylinder is generally very slow when designing the speed of the oil cylinder, and its speed is 200mm / minute, and the diameter of the oil inlet pipe connected to the oil cylinder is Φ6mm. In the event of a break in the oil pipe, the hydraulic oil can only return from the Φ6mm oil inlet, so the descent speed is also very slow, so it will not cause damage and loss.

[0004] The flat plate area on the top of a general scissor-type hydraulic lifting platform is limited. When more people need to be accommodated for work, it will be crowded. The workers cannot move freely on the flat plate and cannot work well. Crowded work is also unsafe. Summary of the invention

[0005] The object of the present invention is to provide a fixed scissor-type hydraulic lifting platform with a pneumatic lock to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixed scissor-type hydraulic lifting platform with a pneumatic lock, comprising a base frame, a first support rod, a second support rod, an L-shaped platform plate, a top frame and a cross bar, a third rotating mechanism is respectively installed at the four corners of the top end of the base frame and the four corners of the bottom end of the top frame, the first support rod and the second support rod are crossed to form a group, two groups of first support rods and second support rods are distributed at the front and rear ends between the base frame and the top frame, the upper and lower ends of the two groups of first support rods and second support rods are respectively connected to the third rotating mechanism, the lower parts of the two first support rods on the opposite sides are respectively connected to the hydraulic cylinder through the first rotating mechanism, the upper parts of the two second support rods on the opposite sides are respectively connected to the hydraulic rod through the second rotating mechanism, the hydraulic rod and the hydraulic cylinder are butt-jointed, a flat plate is fixed to the top of the top frame, slots are respectively provided on both sides of the flat plate, a plug plate is fixed to one side of the vertical end of the L-shaped platform plate, the plug plate is correspondingly inserted into the slot, the plug plate is fixed to the flat plate by a first bolt, the vertical end of the L-shaped platform plate is fixed to the side of the flat plate by a second bolt, and an inclined plate is fixed to the bottom of the L-shaped platform plate.

[0007] Preferably, a rotating shaft is installed in the middle of the intersection of the first support rod and the second support rod, and the first support rod and the second support rod rotate relatively through the rotating shaft, and the rotating shafts at the intersection of the two groups of first support rods and the second support rods are respectively connected to the front and rear ends of the cross bar.

[0008] Preferably, positioning columns are fixed at the four corners of the top end surface of the bottom frame, and positioning holes matching the positioning columns are opened at the four corners of the bottom end surface of the top frame, and the four positioning columns correspond to the four positioning holes respectively.

[0009] Preferably, a hydraulic pump is fixed on the base frame, and the hydraulic pump is connected to the hydraulic cylinder through a hydraulic oil pipe.

[0010] Preferably, the plug plate is provided with four first through holes equidistantly matched with the first bolts, and four first screw holes equidistantly matched with the first bolts are provided on both sides of the upper surface of the flat plate, and the first bolt passes through the first through holes and is screwed into the first screw holes.

[0011] Preferably, four second through holes matching the second bolts are equidistantly formed at the vertical end of the L-shaped platform plate, and second screw holes matching the second bolts are respectively formed on both sides of the plate, and the second bolts pass through the second through holes and are screwed into the second screw holes.

[0012] Preferably, a triangle structure is formed between the inclined plate, the horizontal end of the L-shaped platform plate and the vertical end of the L-shaped platform plate.

[0013] Preferably, anti-slip strips are respectively installed on the upper surface of the L-shaped platform plate and the upper surface of the flat plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: according to the number of workers and the scope of the operation, the L-shaped platform plate is installed on both sides of the flat plate accordingly. The vertical end of the L-shaped platform plate is brought into contact with the side of the flat plate, the plug plate is inserted into the slot, the plug plate is fixed in the slot by the first bolt, and the vertical end of the L-shaped platform plate is fixed to the side of the flat plate by the second bolt, thereby fixing the L-shaped platform plate to the flat plate, the upper surface of the L-shaped platform plate is flush with the upper surface of the flat plate, and the L-shaped platform plate is selectively installed on both sides of the flat plate, which increases the working area accordingly, can accommodate more workers, and expand the scope of the operation.

[0015] An inclined plate is fixed at the bottom of the L-shaped platform plate, and a triangular structure is formed between the inclined plate, the horizontal end of the L-shaped platform plate and the vertical end of the L-shaped platform plate. The inclined plate plays a role in bearing the load of the L-shaped platform plate, making the L-shaped platform plate have a stronger load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 An enlarged schematic diagram of the plug board connection structure;

[0018] Figure 3 It is a right view structural schematic diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection structure of the L-shaped platform plate of the present invention when viewed from above;

[0020] Figure 5 It is a schematic diagram of the top structure of the present invention.

[0021] In the figure: 1, base frame; 2, first support rod; 3, hydraulic pump; 4, second support rod; 5, positioning column; 6, inclined plate; 7, L-shaped platform plate; 8, flat plate; 9, top frame; 10, hydraulic rod; 11, hydraulic cylinder; 12, plug plate; 13, first bolt; 14, first rotating mechanism; 15, second rotating mechanism; 16, slot; 17, third rotating mechanism; 18, cross bar; 19, second bolt; 20, anti-slip strip. DETAILED DESCRIPTION

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

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] See also Figure 1 , Figure 3 and Figure 5 An embodiment of the present invention is as follows: a fixed scissor-type hydraulic lifting platform with a pneumatic lock comprises a base frame 1, a first support rod 2, a second support rod 4, a top frame 9 and a cross bar 18, a third rotating mechanism 17 is respectively installed at the four corners of the top end of the base frame 1 and the four corners of the bottom end of the top frame 9, the first support rod 2 and the second support rod 4 are crossed to form a group, two groups of first support rods 2 and second support rods 4 are distributed at the front and rear ends between the base frame 1 and the top frame 9, a rotating shaft is installed in the middle of the intersection of the first support rod 2 and the second support rod 4, the first support rod 2 and the second support rod 4 rotate relative to each other through the rotating shaft, the rotating shafts at the intersection of the two groups of first support rods 2 and the second support rod 4 are respectively connected to the front and rear ends of the cross bar 18, and the upper and lower ends of the two groups of first support rods 2 and the second support rod 4 are respectively connected to the third rotating mechanism 17.

[0027] The lower part of the two first support rods 2 on the opposite side is connected to the hydraulic cylinder 11 through the first rotating mechanism 14, and the upper part of the two second support rods 4 on the opposite side is connected to the hydraulic rod 10 through the second rotating mechanism 15, and the hydraulic rod 10 is connected to the hydraulic cylinder 11. As is well known to those skilled in the art, the provision of the first rotating mechanism 14, the second rotating mechanism 15 and the third rotating mechanism 17 is commonplace, and they all belong to conventional means or common knowledge, and will not be repeated here, and those skilled in the art can make any selection according to their needs or convenience. A hydraulic pump 3 is fixed on the chassis 1, and as is well known to those skilled in the art, the provision of the hydraulic pump 3 is commonplace, and they all belong to conventional means or common knowledge, and will not be repeated here, and those skilled in the art can make any selection according to their needs or convenience. The hydraulic pump 3 is connected to an external oil tank, and the hydraulic pump 3 is connected to the hydraulic cylinder 11 through a hydraulic oil pipe. The hydraulic pump 3 pumps hydraulic oil into the hydraulic cylinder 11, and the hydraulic cylinder 11 pushes the hydraulic rod 10 out. Under the joint action of the first rotating mechanism 14, the second rotating mechanism 15 and the third rotating mechanism 17, the first support rod 2 and the second support rod 4 are forked to lift the top frame 9. A flat plate 8 is fixed on the top of the top frame 9, and the staff performs work after the flat plate 8 is raised.

[0028] Positioning columns 5 are fixed at the four corners of the top surface of the bottom frame 1, and positioning holes matching the positioning columns 5 are opened at the four corners of the bottom surface of the top frame 9, and the four positioning columns 5 correspond to the four positioning holes. After the top frame 9 is lowered, the positioning columns 5 are inserted into the positioning holes accordingly, and the top frame 9 and the bottom frame 1 remain stable.

[0029] Example 2

[0030] See also Figures 1 to 5, an embodiment provided by the present invention: a fixed scissor-type hydraulic lifting platform with a pneumatic lock, comprising an L-shaped platform plate 7 and a flat plate 8, slots 16 are respectively provided on both sides of the flat plate 8, a plug plate 12 is fixed on one side of the vertical end of the L-shaped platform plate 7, the plug plate 12 is correspondingly inserted into the slot 16, the plug plate 12 is fixed to the flat plate 8 by a first bolt 13, four first through holes matching the first bolt 13 are equidistantly provided on the plug plate 12, four first screw holes matching the first bolt 13 are equidistantly provided on both sides of the upper surface of the flat plate 8, the first bolt 13 passes through the first through hole and is screwed into the first screw hole. The vertical end of the L-shaped platform plate 7 is fixed to the side of the flat plate 8 by a second bolt 19, four second through holes matching the second bolt 19 are equidistantly provided on the vertical end of the L-shaped platform plate 7, second screw holes matching the second bolt 19 are respectively provided on both sides of the flat plate 8, the second bolt 19 passes through the second through hole and is screwed into the second screw hole. According to the number of people working and the scope of the work, the L-shaped platform plate 7 is installed on both sides of the flat plate 8 accordingly. The vertical end of the L-shaped platform plate 7 is in contact with the side of the flat plate 8, the plug plate 12 is inserted into the slot 16, the plug plate 12 is fixed in the slot 16 by the first bolt 13, and the vertical end of the L-shaped platform plate 7 is fixed to the side of the flat plate 8 by the second bolt 19, so that the L-shaped platform plate 7 is fixed to the flat plate 8, and the upper surface of the L-shaped platform plate 7 is flush with the upper surface of the flat plate 8. The L-shaped platform plate 7 is selectively installed on both sides of the flat plate 8, which increases the working area accordingly, can accommodate more staff, and expand the scope of operation. The upper surface of the L-shaped platform plate 7 and the upper surface of the flat plate 8 are respectively installed with anti-skid strips 20, which play an anti-skid role.

[0031] An inclined plate 6 is fixed at the bottom of the L-shaped platform plate 7. A triangular structure is formed between the inclined plate 6, the horizontal end of the L-shaped platform plate 7 and the vertical end of the L-shaped platform plate 7. The inclined plate 6 plays a role in bearing the weight of the L-shaped platform plate 7, making the L-shaped platform plate 7 have a stronger load-bearing capacity.

[0032] Working principle: According to the number of workers and the scope of the operation, the L-shaped platform plate 7 is installed on both sides of the flat plate 8. The vertical end of the L-shaped platform plate 7 is in contact with the side of the flat plate 8, the plug plate 12 is inserted into the slot 16, the plug plate 12 is fixed in the slot 16 by the first bolt 13, and the vertical end of the L-shaped platform plate 7 is fixed to the side of the flat plate 8 by the second bolt 19.

[0033] The hydraulic pump 3 pumps hydraulic oil into the hydraulic cylinder 11, and the hydraulic cylinder 11 pushes the hydraulic rod 10 out. Under the joint action of the first rotating mechanism 14, the second rotating mechanism 15 and the third rotating mechanism 17, the first support rod 2 and the second support rod 4 are forked to lift the top frame 9. A flat plate 8 is fixed on the top of the top frame 9, and the staff performs work after the flat plate 8 is raised.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A fixed scissor-type hydraulic lifting platform with a pneumatic lock, comprising a base frame (1), a first support rod (2), a second support rod (4), an L-shaped platform plate (7), a top frame (9) and a cross bar (18), characterized in that: A third rotating mechanism (17) is respectively installed at the four corners of the top end of the bottom frame (1) and the four corners of the bottom end of the top frame (9); the first support rod (2) and the second support rod (4) are crossed to form a group; the two groups of first support rods (2) and second support rods (4) are distributed at the front and rear ends between the bottom frame (1) and the top frame (9); the upper and lower ends of the two groups of first support rods (2) and second support rods (4) are respectively connected to the third rotating mechanism (17); the lower parts of the two first support rods (2) on the opposite side are respectively connected to a hydraulic cylinder (11) through the first rotating mechanism (14); the upper parts of the two second support rods (4) on the opposite side are respectively connected to a hydraulic cylinder (11); The two sides of the L-shaped platform plate (7) are connected to a hydraulic rod (10) through a second rotating mechanism (15), and the hydraulic rod (10) and the hydraulic cylinder (11) are butted against each other. A flat plate (8) is fixed to the top of the top frame (9), and slots (16) are respectively provided on both sides of the flat plate (8). A plug plate (12) is fixed to one side of the vertical end of the L-shaped platform plate (7), and the plug plate (12) is correspondingly inserted into the slot (16). The plug plate (12) is fixed to the flat plate (8) through a first bolt (13). The vertical end of the L-shaped platform plate (7) is fixed to the side of the flat plate (8) through a second bolt (19), and an inclined plate (6) is fixed to the bottom of the L-shaped platform plate (7); The insert plate (12) is provided with four first through holes that match the first bolts (13) at equal intervals, and the two sides of the upper surface of the flat plate (8) are provided with four first screw holes that match the first bolts (13) at equal intervals, and the first bolts (13) pass through the first through holes and are screwed into the first screw holes; The vertical end of the L-shaped platform plate (7) is provided with four second through holes that match the second bolts (19) at equal intervals, and the two sides of the flat plate (8) are respectively provided with second screw holes that match the second bolts (19), and the second bolts (19) pass through the second through holes and are screwed into the second screw holes; The inclined plate (6), the horizontal end of the L-shaped platform plate (7) and the vertical end of the L-shaped platform plate (7) form a triangular structure; Anti-slip strips (20) are respectively installed on the upper surface of the L-shaped platform plate (7) and the upper surface of the flat plate (8).

2. A fixed scissor-type hydraulic lifting platform with pneumatic lock according to claim 1, characterized in that: A rotating shaft is installed in the middle of the intersection of the first support rod (2) and the second support rod (4), and the first support rod (2) and the second support rod (4) rotate relative to each other via the rotating shaft. The rotating shafts at the intersection of the two groups of first support rods (2) and second support rods (4) are respectively connected to the front and rear ends of the cross bar (18).

3. A fixed scissor-type hydraulic lifting platform with pneumatic lock according to claim 1, characterized in that: Positioning columns (5) are fixed at the four corners of the top end surface of the bottom frame (1), and positioning holes matching the positioning columns (5) are opened at the four corners of the bottom end surface of the top frame (9), and the four positioning columns (5) correspond to the four positioning holes respectively.

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