A split type pneumatic lifting device

Abstract

The utility model relates to the technical field of lifting tools, and specifically to a split-type pneumatic lifting device, including a base, two lifting columns are vertically and parallelly installed on the upper side of the base, the top ends of the two lifting columns are connected by a mounting plate, the middle of the mounting plate is provided with an equipment hole that passes through the upper and lower sides, and the upper side of the mounting plate is provided with a plurality of mounting bolt holes around the equipment hole; the middle parts of the two lifting columns are connected by a middle connecting plate, and the middle part of the middle connecting plate is curved toward one side of the two lifting columns. By providing the mounting bolt holes, the pump body can be stably fixed on the upper side of the mounting plate. By providing the middle connecting plate, the middle parts of the two lifting columns can be supported, and the structure of the two lifting columns can be made more stable by cooperating with the mounting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tools, in particular to a split type pneumatic lifting device. Background Art

[0002] Grease pump devices are widely used in metallurgy, mining, coal, electricity, cement, chemical industry and other fields. They are mainly used for filling or pressurizing high-viscosity, low-fluidity grease materials. They are mainly composed of pump frame, pneumatic motor, oil pump assembly, pressure plate assembly, control system, etc. When the grease pump device extracts the grease in the barrel, the pressure plate assembly is pressed down to press the grease in the barrel into the oil pump assembly, and the grease is extracted with the help of the oil pump assembly.

[0003] In the prior art, the pump frame usually adopts a single-cylinder lifting or double-cylinder lifting method to drive the oil pump assembly to rise and fall, thereby driving the pressure plate assembly to press down to extract the grease in the grease barrel. Due to the structural characteristics of the single-cylinder lifting, the stability is poor. Therefore, more and more grease pump devices adopt a double-cylinder lifting method. For example, application number CN202211149588.8 discloses a shield machine grease barrel replacement device, which uses two cylinder barrels to drive the oil pump assembly to rise and fall to extract grease.

[0004] However, at present, as in the above-mentioned patent disclosure, most of the double-cylinder lifting methods are only fixed at the bottom and top of the two cylinders, which results in poor stability in the middle of the two cylinders. Utility Model Content

[0005] The utility model aims to provide a split-type pneumatic lifting device to solve the problem of poor stability of double-tube lifting devices in the prior art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A split pneumatic lifting device comprises a base, two lifting columns are vertically and parallelly installed on the upper side of the base, the top ends of the two lifting columns are connected by a mounting plate, a device hole penetrating the upper and lower sides is arranged in the middle of the mounting plate, and a plurality of mounting bolt holes are arranged around the device hole on the upper side of the mounting plate; the middle parts of the two lifting columns are connected by a middle connecting plate, and the middle part of the middle connecting plate is curved toward one side of the two lifting columns.

[0008] A further technical solution is that the lifting column includes a fixed column and a lifting column, the lower end of the fixed column is connected to the upper side of the base, and a lifting hole is provided at the upper end. The lower end of the lifting column is slid up and down in the lifting hole, and the upper end of the lifting column is connected to the mounting plate; both ends of the middle connecting plate are provided with mounting holes that pass through the upper and lower sides, the end of the middle connecting plate is connected to the upper end of the fixed column, and the lifting column is lifted and lowered in the mounting hole.

[0009] A further technical solution is that the lower end of the lifting column is connected to a piston in the lifting hole that slides in contact with the wall of the lifting hole, and an air hole connected to the lifting hole is provided near the lower end of the fixed column, and the air hole is connected to an air pump through an air supply pipe.

[0010] A further technical solution is that the end of the middle connecting plate is connected to the upper end of the fixing column through a first screw, and the middle connecting plate is provided with a plurality of fixing through holes passing through the upper and lower ends around the mounting hole, and the upper end of the fixing column is provided with a plurality of first screw holes aligned one by one with the fixing through holes around the lifting hole, and the first screw passes through the fixing through hole and is threadedly matched with the first screw hole.

[0011] A further technical solution is that a side mounting plate is installed on the side of the fixing column, and the side mounting plate is connected to the upper side of the end of the middle connecting plate.

[0012] A further technical solution is that both ends of the mounting plate are provided with fixing holes that pass through the upper and lower sides, and the upper end of the lifting column is provided with a mounting threaded column. The diameter of the lifting column is larger than the aperture of the fixing hole. After the upper end of the mounting threaded column passes through the fixing hole, a locking nut is threadedly matched and connected to the upper side of the mounting plate.

[0013] A further technical solution is that the lower end of the fixing column is connected to the upper side of the base through a second screw, the lower end of the fixing column is connected to a mounting base plate, the mounting base plate is provided with a mounting through hole passing through the upper and lower sides, and the upper side of the base is provided with a second screw hole, the second screw passes through the mounting through hole and is threadedly matched with the second screw hole.

[0014] A further technical solution is that a mounting connection hole penetrating the upper and lower sides is provided near the edge of the base, and a support foot or a universal wheel is installed on the lower side of the base through the mounting connection hole.

[0015] Compared with the prior art, the utility model has at least one of the following beneficial effects: 1. By setting a mounting plate and an equipment hole, the pump body of the grease pump is installed on the upper side of the mounting plate, and the grease suction tube of the pump body is passed through the equipment hole downward, so that during the process of extracting grease, the pump body and the grease suction tube gradually descend as the grease is extracted; 2. By setting mounting bolt holes, the pump body can be stably fixed on the upper side of the mounting plate; 3. By setting a middle connecting plate, the middle parts of the two lifting columns can be supported, and the structure of the two lifting columns can be more stable in cooperation with the mounting plate; 4. By setting the middle part of the middle connecting plate to be arc-shaped, the middle connecting plate can be kept away from the grease suction tube of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of a split-type pneumatic lifting device of the utility model.

[0017] Figure 2for Figure 1 The local enlarged schematic diagram is marked A in the middle.

[0018] Figure 3 for Figure 1 The local enlarged schematic diagram is marked B in the middle.

[0019] Icon: 1-base, 2-lifting column, 3-mounting plate, 4-equipment hole, 5-mounting bolt hole, 6-middle connecting plate, 7-fixing column, 8-lifting column, 9-mounting hole, 10-fixing through hole, 11-first screw hole, 12-side mounting plate, 13-fixing hole, 14-mounting threaded column, 15-mounting bottom plate, 16-mounting through hole, 17-second screw hole, 18-mounting connecting hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] Figures 1 to 3 Shown is an embodiment of the utility model.

[0022] Example:

[0023] like Figure 1 As shown, a split-type pneumatic lifting device comprises a base 1, two lifting columns 2 are vertically and parallelly installed on the upper side of the base 1, the tops of the two lifting columns 2 are connected through a mounting plate 3, a device hole 4 penetrating the upper and lower sides is arranged in the middle of the mounting plate 3, and a plurality of mounting bolt holes 5 are arranged on the upper side of the mounting plate 3 around the device hole 4; the middle parts of the two lifting columns 2 are connected through a middle connecting plate 6, and the middle part of the middle connecting plate 6 is curved toward one side of the two lifting columns 2. By setting the mounting plate 3 and the device hole 4, the pump body of the grease pump is installed on the upper side of the mounting plate 3, and the grease suction tube of the pump body is passed through the device hole 4 downward, so that the pump body and the grease suction tube can be gradually lowered as the grease is extracted during the grease extraction process. By setting the mounting bolt hole 5, the pump body can be stably fixed on the upper side of the mounting plate 3. By setting the middle connecting plate 6, the middle parts of the two lifting columns 2 can be supported, and the structure of the two lifting columns 2 can be more stable in cooperation with the mounting plate 3. By arranging the middle portion of the middle connecting plate 6 to be arc-shaped, the middle connecting plate 6 can avoid the liposuction tube of the pump body.

[0024] The lifting column 2 includes a fixed column 7 and a lifting column 8. The lower end of the fixed column 7 is connected to the upper side of the base 1, and a lifting hole is provided at the upper end. The lower end of the lifting column 8 is slidably arranged in the lifting hole, and the upper end of the lifting column 8 is connected to the mounting plate 3. Both ends of the middle connecting plate 6 are provided with mounting holes 9 that pass through the upper and lower sides. The end of the middle connecting plate 6 is connected to the upper end of the fixed column 7, and the lifting column 8 is lifted and set in the mounting hole 9. With such a setting, the upper and lower ends of the fixed column 7 can be fixed by the cooperation of the middle connecting plate 6 and the base 1, and a stable structure is formed by cooperation, so that the lifting column 8 can be more smoothly lifted and lowered.

[0025] The lower end of the lifting column 8 is connected to a piston in the lifting hole that slides and fits with the wall of the lifting hole. The fixed column 7 is provided with an air hole connected to the lifting hole near the lower end, and the air hole is connected to an air pump through an air supply pipe. The lifting column 2 is pneumatically lifted as a whole, and the lifting column 8 is lifted and lowered by the air pump by inflating and exhausting air into the lifting hole. By setting a piston, a closed and adjustable air cavity can be formed between the bottom of the lifting hole and the piston, and the lifting and lowering of the lifting column 8 can be achieved by increasing and decreasing the gas.

[0026] Embodiment 2:

[0027] Based on the above embodiments, Figure 2 As described above, the end of the middle connecting plate 6 is connected to the upper end of the fixing column 7 through the first screw, and the middle connecting plate 6 is provided with a plurality of fixing through holes 10 that pass through the upper and lower ends around the mounting hole 9, and the upper end of the fixing column 7 is provided with a plurality of first screw holes 11 that are aligned with the fixing through holes 10 one by one around the lifting hole, and the first screw passes through the fixing through hole 10 and is connected with the first screw hole 11 by thread matching. Through the cooperation of the plurality of first screw holes 11 and the fixing through hole 10, the end of the middle connecting plate 6 and the upper end of the fixing column 7 can be fixed at multiple points, thereby improving the connection stability between the fixing column 7 and the middle connecting plate 6. The method of fixing with the first screw is not only convenient to operate, but also easy to disassemble and install, and convenient to maintain.

[0028] A side mounting plate 12 is installed on the side of the fixing column 7, and the side mounting plate 12 is connected to the upper side of the end of the middle connecting plate 6. By setting the side mounting plate 12, an expanded installation position can be provided, and some other devices can be installed on the side mounting plate 12 to realize the expansion of the function of the entire device.

[0029] Both ends of the mounting plate 3 are provided with fixing holes 13 that pass through the upper and lower sides, and the upper end of the lifting column 8 is provided with a mounting threaded column 14. The diameter of the lifting column 8 is larger than the diameter of the fixing hole 13. After the upper end of the mounting threaded column 14 passes through the fixing hole 13, a locking nut is threadedly matched and connected on the upper side of the mounting plate 3. When installing the mounting plate 3, align the fixing holes 13 at both ends of the mounting plate 3 with the mounting threaded columns 14 on the two lifting columns 8, and then screw the nuts onto the mounting threaded columns 14. With the help of the nuts and the upper ends of the lifting columns 8, the mounting plate 3 is pressed from both sides to fix the mounting plate 3.

[0030] Embodiment 3:

[0031] Based on the above embodiments, Figure 3 As shown, the lower end of the fixing column 7 is connected to the upper side of the base 1 through the second screw, and the lower end of the fixing column 7 is connected to the mounting base plate 15, and the mounting base plate 15 is provided with a mounting through hole 16 that passes through the upper and lower sides, and the upper side of the base 1 is provided with a second screw hole 17, and the second screw passes through the mounting through hole 16 and the second screw hole 17 and is threadedly matched. When installing the fixing column 7, the mounting through hole 16 on the mounting base plate 15 and the second screw hole 17 on the base 1 are aligned one by one, and then the mounting base plate 15 and the base 1 are fixed together by the second screw. Since the lifting column 2 and the base 1, the middle connecting plate 6 and the mounting plate 3 are all installed in a detachable manner, when one of the lifting columns 2 fails, it is only necessary to disassemble the failed lifting column 2 for replacement or repair.

[0032] The base 1 is provided with a mounting connection hole 18 passing through the upper and lower sides near the edge, and the lower side of the base 1 is provided with a support foot or a universal wheel through the mounting connection hole 18. The support foot or universal wheel is installed on the lower side of the base 1 according to the needs, so that the whole device can be easily moved or stably placed.

[0033] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A split-type pneumatic lifting device, comprising a base (1), wherein two lifting columns (2) are vertically and parallelly mounted on the upper side of the base (1), characterized in that: The top ends of the two lifting columns (2) are connected via a mounting plate (3); a device hole (4) penetrating the upper and lower sides is provided in the middle of the mounting plate (3); a plurality of mounting bolt holes (5) are provided on the upper side of the mounting plate (3) surrounding the device hole (4); the middle parts of the two lifting columns (2) are connected via a middle connecting plate (6); the middle part of the middle connecting plate (6) is curved toward one side of the two lifting columns (2).

2. A split type pneumatic lifting device according to claim 1, characterized in that: The lifting column (2) comprises a fixed column (7) and a lifting column (8); the lower end of the fixed column (7) is connected to the upper side of the base (1); the upper end is provided with a lifting hole; the lower end of the lifting column (8) is slidably arranged in the lifting hole; the upper end of the lifting column (8) is connected to the mounting plate (3); both ends of the middle connecting plate (6) are provided with mounting holes (9) passing through the upper and lower sides; the end of the middle connecting plate (6) is connected to the upper end of the fixed column (7), and the lifting column (8) is lifted and lowered in the mounting hole (9).

3. A split type pneumatic lifting device according to claim 2, characterized in that: The lower end of the lifting column (8) is connected to a piston in the lifting hole and slidingly fits with the wall of the lifting hole. The fixed column (7) is provided with an air hole connected to the lifting hole near the lower end. The air hole is connected to an air pump via an air supply pipe.

4. A split type pneumatic lifting device according to claim 3, characterized in that: The end of the middle connecting plate (6) is connected to the upper end of the fixing column (7) via a first screw; the middle connecting plate (6) is provided with a plurality of fixing through holes (10) passing through the upper and lower ends around the mounting hole (9); the upper end of the fixing column (7) is provided with a plurality of first screw holes (11) aligned one by one with the fixing through holes (10) around the lifting hole; the first screw passes through the fixing through hole (10) and is threadedly matched with the first screw hole (11).

5. A split type pneumatic lifting device according to claim 2, characterized in that: A side mounting plate (12) is mounted on the side of the fixing column (7), and the side mounting plate (12) is connected to the upper side of the end of the middle connecting plate (6).

6. A split type pneumatic lifting device according to claim 2, characterized in that: Both ends of the mounting plate (3) are provided with fixing holes (13) that pass through the upper and lower sides, and the upper end of the lifting column (8) is provided with a mounting threaded column (14). The diameter of the lifting column (8) is larger than the hole diameter of the fixing hole (13). After the upper end of the mounting threaded column (14) passes through the fixing hole (13), a locking nut is threadedly matched and connected to the upper side of the mounting plate (3).

7. A split type pneumatic lifting device according to claim 2, characterized in that: The lower end of the fixing column (7) is connected to the upper side of the base (1) via a second screw, the lower end of the fixing column (7) is connected to a mounting base plate (15), the mounting base plate (15) is provided with a mounting through hole (16) passing through the upper and lower sides, the upper side of the base (1) is provided with a second screw hole (17), the second screw passes through the mounting through hole (16) and is threadedly matched with the second screw hole (17).

8. The split-type pneumatic lifting device according to claim 1, characterized in that: A mounting connection hole (18) penetrating the upper and lower sides is provided near the edge of the base (1), and a support foot or a universal wheel is mounted on the lower side of the base (1) through the mounting connection hole (18).

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