Lifting device suitable for convenient opening and closing of autoclave cover

Abstract

The utility model relates to a lifting device suitable for conveniently opening and closing an autoclave cover. Comprising a stand column, a sliding block sliding in the stand column, a fixing block limiting the position of the sliding block, a sleeve rotating on the sliding block, an annular sliding sleeve enabling the sleeve and the stand column to be coaxial, a pushing piece pushing the sliding block to move up and down, a suspension arm installed on one side of the sleeve, a balancing weight installed on the other side of the sleeve and a locking piece limiting the angle of the sleeve. The locking piece is arranged on the sleeve; a sliding groove is formed in the stand column. The fixing block slides in the sliding groove; the sleeve wraps the stand column. The annular sliding sleeve is located between the sleeve and the stand column. The pushing piece is arranged on the stand column, and the acting end of the pushing piece abuts against the sliding block. The problems that when a steel wire rope is used for pulling up a kettle cover, transverse swing is prone to occurring due to the absence of direction guide, manual limitation is needed, no good anti-corrosion measure exists in a corrosion test environment, the steel wire rope can be broken due to long-time corrosion environment influence, and the situation is very dangerous are solved.

Description

Technical Field

[0001] The utility model relates to the field of autoclave covers, in particular to a lifting device suitable for convenient opening and closing of autoclave covers. Background Art

[0002] In the prior art, small pressure vessels, especially experimental reactors, generally have a volume of less than 30 liters. Each experiment requires the lid of the reactor to be opened and then closed. When the volume of the reactor reaches 3 liters or more, the size and weight of the reactor lid will be larger. Especially when the temperature and pressure used are also higher, the more materials are calculated, and the more difficult it will be to open and close the reactor lid. This requires a separate lifting device to assist in the opening and closing of the heavier reactor lid.

[0003] Currently, the most commonly used structure is the one that uses a wire rope and a crane (or a hand-cranked reducer). The crane is generally large in size and needs to be fixed at a high position separately. When the kettle cover is pulled up with a wire rope, it is easy to swing horizontally because there is no directional guidance, which requires artificial restriction. In addition, there are no better anti-corrosion measures in the corrosion test environment, and the wire rope will also break due to the influence of the long-term corrosive environment, which can be very dangerous.

[0004] In order to avoid the potential safety hazards caused by the use of wire rope lifting, a self-locking lifting device is now used. This device has a simple structure and high safety, and is suitable for use in experimental kettles within 30 liters. Utility Model Content

[0005] The embodiment of the present application provides a lifting device suitable for convenient opening and closing of the autoclave cover, thereby solving the problem in the prior art that when the autoclave cover is pulled up by a steel wire rope, there is no directional guidance and it is easy to cause lateral swing, which requires manual restriction. In addition, there are no better anti-corrosion measures in the corrosion test environment, and the steel wire rope may break due to the influence of the corrosion environment for a long time, which can be very dangerous.

[0006] The technical solution adopted in the embodiments of the present application is as follows.

[0007] A lifting device suitable for convenient opening and closing of an autoclave cover comprises a column, a slider sliding in the column, a fixed block limiting the position of the slider, a sleeve rotating on the slider, an annular sleeve making the sleeve coaxial with the column, a pushing member pushing the slider up and down, a hanging arm installed on one side of the sleeve, a counterweight installed on the other side of the sleeve and a locking member limiting the angle of the sleeve; the locking member is arranged on the sleeve; a sliding groove is provided on the column; the fixed block slides in the sliding groove; the sleeve covers the column; the annular sleeve is located between the sleeve and the column; the pushing member is arranged on the column and the action end of the pushing member abuts against the slider.

[0008] As a further improvement of the above technical solution: a thrust bearing is arranged on the sliding block; and the sleeve is arranged on the thrust bearing.

[0009] As a further improvement of the above technical solution: a suspension rod is arranged on the suspension arm; and the suspension rod is butted with a mounting opening reserved on the kettle cover.

[0010] As a further improvement of the above technical solution: the locking member includes a locking ring and a locking handle for fixing the locking ring; the locking ring is arranged between the sleeve and the column; the locking handle is threadedly connected to the sleeve and the locking handle is against the locking ring; when the locking handle fixes the locking ring on the column, the angle of the sleeve is fixed.

[0011] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0012] 1. Since the column is cylindrical and hollow inside with openings at the top and bottom, there are slide grooves on both sides of the column, and a flange is set at the bottom of the column. The flange can fix the column on the equipment desktop. A pusher is set in the column. The pusher can be an electric push rod or a hydraulic push rod. A slider is slidably connected in the column. The slider is connected to the action end of the pusher. Fixed blocks are set on both sides of the slider. The fixed blocks slide in the slide groove. The fixed blocks limit the rotation of the slider. A thrust bearing is set on the slider. A sleeve is set on the thrust bearing. The sleeve rotates on the slider through the thrust bearing. An annular sleeve is set between the sleeve and the slider. A gap is left between the sleeve and the column. The annular sleeve is located in the sleeve. At the gap between the sleeve and the column, the annular sliding sleeve limits the sleeve to be coaxial with the column, and a locking ring is provided on the inner wall of the sleeve. The locking ring contacts the side wall of the column but is not connected. A locking handle is threadedly connected to the sleeve, and the locking handle presses the locking ring until the locking ring contacts the column. The angle of the sleeve is fixed, and a lifting arm is provided on one side of the sleeve, and a hanging rod is provided on the lifting arm. The hanging rod is connected to the mounting port reserved on the kettle cover, and a counterweight block is provided on the other side of the sleeve. This structure can better ensure that the center of gravity is close to the center of gravity of the supporting column during the lifting and lowering of the kettle cover, so that the lifting process is relatively stable and smooth, thereby realizing the adjustment of the position of the crane by controlling the position of the sleeve and the crane is at a low place for easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the lifting device suitable for convenient opening and closing of the autoclave cover in the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the structure of the lifting device suitable for convenient opening and closing of the autoclave cover.

[0015] In the figure: 1, column; 2, pushing member; 3, slider; 4, fixing block; 5, thrust bearing; 6, annular sleeve; 7, sleeve; 8, locking ring; 9, counterweight; 10, boom; 11, boom; 12, locking handle; 13, locking member; 14, slide groove. DETAILED DESCRIPTION

[0016] The embodiment of the present application provides a lifting device suitable for convenient opening and closing of the autoclave cover, thereby solving the problem in the prior art that when the autoclave cover is pulled up by a steel wire rope, there is no directional guidance and it is easy to cause lateral swing, which requires manual restriction. In addition, there are no better anti-corrosion measures in the corrosion test environment, and the steel wire rope may break due to the influence of the corrosion environment for a long time, which can be very dangerous.

[0017] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] A lifting device suitable for convenient opening and closing of an autoclave cover comprises a column 1, a slider 3 sliding in the column 1, a fixed block 4 limiting the position of the slider 3, a sleeve 7 rotating on the slider 3, an annular sleeve 6 making the sleeve 7 coaxial with the column 1, a pusher 2 pushing the slider 3 to move up and down, a hanging arm 10 installed on one side of the sleeve 7, a counterweight 9 installed on the other side of the sleeve 7 and a locking member 13 limiting the angle of the sleeve 7; the locking member 13 is arranged on the sleeve 7; a slide groove 14 is provided on the column 1; the fixed block 4 slides in the slide groove 14; the sleeve 7 covers the column 1; the annular sleeve 6 is located between the sleeve 7 and the column 1; the pusher 2 is arranged on the column 1 and the action end of the pusher 2 abuts against the slider 3.

[0020] A thrust bearing 5 is arranged on the slider 3 ; and a sleeve 7 is arranged on the thrust bearing 5 .

[0021] A suspension rod 11 is provided on the suspension arm 10; the suspension rod 11 is butted against a mounting opening reserved on the kettle cover.

[0022] The locking member 13 includes a locking ring 8 and a locking handle 12 for fixing the locking ring 8; the locking ring 8 is arranged between the sleeve 7 and the column 1; the locking handle 12 is threadedly connected to the sleeve 7 and the locking handle 12 is against the locking ring 8; when the locking handle 12 fixes the locking ring 8 on the column 1, the angle of the sleeve 7 is fixed.

[0023] The column 1 is cylindrical and hollow inside with openings at the top and bottom. Slide grooves 14 are provided on both sides of the column 1. A flange is provided at the bottom of the column 1. The flange can fix the column 1 on the device desktop. A pusher 2 is provided in the column 1. The pusher 2 can be an electric push rod or a hydraulic push rod. A slider 3 is slidably connected in the column 1. The slider 3 is connected to the action end of the pusher 2. Fixed blocks 4 are provided on both sides of the slider 3. The fixed blocks 4 slide in the slide groove 14. The fixed blocks 4 limit the rotation of the slider 3. A thrust bearing 5 is provided on the slider 3. A sleeve 7 is provided on the thrust bearing 5. The sleeve 7 rotates on the slider 3 through the thrust bearing 5. An annular sleeve 6 is provided between the sleeve 7 and the slider 3. The sleeve 7 and the column 1 A gap is left in between, and the annular sliding sleeve 6 is located in the gap between the sleeve 7 and the column 1. The annular sliding sleeve 6 limits the sleeve 7 to be coaxial with the column 1. A locking ring 8 is provided on the inner wall of the sleeve 7. The locking ring 8 contacts the side wall of the column 1 but is not connected. A locking handle 12 is threadedly connected to the sleeve 7. The locking handle 12 presses the locking ring 8 until the locking ring 8 contacts the column 1. The angle of the sleeve 7 is fixed, and a hanging arm 10 is provided on one side of the sleeve 7. A hanging rod 11 is provided on the hanging arm 10. The hanging rod 11 is connected to the installation port reserved on the kettle cover, and a counterweight block 9 is provided on the other side of the sleeve 7. This structure can better ensure that the center of gravity is close to the center of gravity of the supporting column 1 during the lifting and lowering of the kettle cover, so that the lifting process is more stable and smooth.

[0024] Since the column 1 is cylindrical and hollow inside with openings at the top and bottom, slide grooves 14 are provided on both sides of the column 1, and a flange is provided at the bottom of the column 1. The flange can fix the column 1 on the device desktop. A pushing member 2 is provided in the column 1. The pushing member 2 can be an electric push rod or a hydraulic push rod. A slider 3 is slidably connected in the column 1. The slider 3 is connected to the action end of the pushing member 2. Fixed blocks 4 are provided on both sides of the slider 3. The fixed blocks 4 slide in the slide groove 14. The fixed blocks 4 limit the rotation of the slider 3. A thrust bearing 5 is provided on the slider 3. A sleeve 7 is provided on the thrust bearing 5. The sleeve 7 rotates on the slider 3 through the thrust bearing 5. An annular sleeve 6 is provided between the sleeve 7 and the slider 3. A gap is left between the sleeve 7 and the column 1. The annular sleeve 6 is located in the sleeve At the gap between 7 and the column 1, the annular sliding sleeve 6 limits the sleeve 7 to be coaxial with the column 1, and a locking ring 8 is provided on the inner wall of the sleeve 7. The locking ring 8 contacts the side wall of the column 1 but is not connected. A locking handle 12 is threadedly connected to the sleeve 7, and the locking handle 12 presses the locking ring 8 until the locking ring 8 contacts the column 1. The angle of the sleeve 7 is fixed, and a boom 10 is provided on one side of the sleeve 7. A suspension rod 11 is provided on the boom 10, and the suspension rod 11 is docked with a mounting port reserved on the kettle cover. A counterweight 9 is provided on the other side of the sleeve 7. This structure can better ensure that the center of gravity is close to the center of gravity of the supporting column 1 during the lifting and lowering of the kettle cover, so that the lifting process is relatively stable and smooth, thereby realizing the position of the crane being adjusted by controlling the position of the sleeve 7 and the crane is at a low place for easy installation.

[0025] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A lifting device suitable for convenient opening and closing of an autoclave cover, characterized in that: The invention comprises a column (1), a slider (3) sliding in the column (1), a fixed block (4) limiting the position of the slider (3), a sleeve (7) rotating on the slider (3), an annular sleeve (6) making the sleeve (7) and the column (1) coaxial, a pusher (2) pushing the slider (3) to move up and down, a suspension arm (10) installed on one side of the sleeve (7), a counterweight (9) installed on the other side of the sleeve (7), and a sleeve (7) for limiting the position of the slider (3). (7) a locking member (13) at an angle of 0.1° to 0.1°; the locking member (13) is arranged on the sleeve (7); a sliding groove (14) is provided on the column (1); the fixing block (4) slides in the sliding groove (14); the sleeve (7) covers the column (1); the annular sliding sleeve (6) is located between the sleeve (7) and the column (1); the pushing member (2) is arranged on the column (1) and the action end of the pushing member (2) abuts against the sliding block (3).

2. The lifting device suitable for convenient opening and closing of the autoclave cover according to claim 1, characterized in that: The slider (3) is provided with a thrust bearing (5); and the sleeve (7) is provided on the thrust bearing (5).

3. The lifting device suitable for convenient opening and closing of the autoclave cover according to claim 1, characterized in that: The suspension arm (10) is provided with a suspension rod (11); the suspension rod (11) is butted against a mounting opening reserved on the kettle cover.

4. The lifting device suitable for convenient opening and closing of the autoclave cover according to claim 1, characterized in that: The locking member (13) comprises a locking ring (8) and a locking handle (12) for fixing the locking ring (8); the locking ring (8) is arranged between the sleeve (7) and the column (1); the locking handle (12) is threadedly connected to the sleeve (7) and the locking handle (12) abuts against the locking ring (8); when the locking handle (12) fixes the locking ring (8) on the column (1), the angle of the sleeve (7) is fixed.

Images