Lifting device for flammable and explosive materials

Abstract

The invention discloses a lifting device for flammable and explosive materials, which comprises a support and a bracket, the support is provided with a lifting driving piece, the bracket is provided with a moving guide piece and a positioning assembly, the moving guide piece is arranged in a water tank, and the water tank is provided with a water stop piece capable of floating up and down. A lifted object moves along the moving guide part to enter the bracket, water in the water tank can clean and lubricate the moving guide part, dust attached to the moving guide part is reduced, the moving guide part is kept wet, friction is reduced, and the explosion risk of energetic solid materials is greatly reduced; when a lifted object needs to move to the moving guide piece or leave, the lifted object can sink by extruding the water stop piece, and therefore the lifted object smoothly passes through the water stop piece. Afterwards, the water stop piece floats upwards, water overflowing in the water tank is reduced, and the movable guide piece is kept immersed in water. After the lifted object is in place, the positioning assembly performs positioning, accidental movement of the lifted object during lifting is avoided, the lifting driving piece drives the bracket to ascend and descend, the structure is simple and reliable, and the automation degree is high.

Description

Technical Field

[0001] The invention relates to production equipment used in the pharmaceutical, chemical and other industries, and in particular to a lifting device used for flammable and explosive materials. Background Art

[0002] In the pharmaceutical and chemical industries, energetic solid materials (flammable and explosive) often need to be lifted or lowered in order to be transferred to the next process. The production environment is generally required to reach F0 or F1 zone, which makes conventional lifting equipment inapplicable. Currently, most of them are transferred manually. Manual transfer not only has the defects of high labor intensity and low efficiency, but also the dust and pungent odor in the environment affect the health of workers. In addition, since energetic solid materials are flammable and explosive, there are also certain safety hazards. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a lifting device for flammable and explosive materials which has a simple structure, a high degree of automation, good reliability, and is conducive to reducing labor intensity and improving efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A lifting device for flammable and explosive materials comprises a bracket and a support, wherein the bracket is provided with a lifting drive member for driving the bracket to lift and lower, the support is provided with a movable guide member and a positioning assembly for preventing the lifted object from moving along the movable guide member, the movable guide member is arranged in a water tank, and at least one end of the water tank is provided with a water stop member that can float up and down.

[0006] As a further improvement of the above technical solution: the positioning assembly includes a first positioning cylinder and a second positioning cylinder, and the first positioning cylinder and the second positioning cylinder are spaced apart along the length direction of the movable guide.

[0007] As a further improvement of the above technical solution: the first positioning cylinder and the second positioning cylinder are both arranged in the up and down directions, and the bracket is provided with a first limit switch and a second limit switch, the first limit switch is located on one side of the first positioning cylinder, and the second limit switch is located on one side of the second positioning cylinder.

[0008] As a further improvement of the above technical solution: a lifting guide assembly is provided between the bracket and the support.

[0009] As a further improvement of the above technical solution: the lifting guide assembly includes lifting guide members arranged on both sides of the lifting drive member and a guide sleeve arranged on the bracket, and the guide sleeve is arranged on the outer periphery of the lifting guide member.

[0010] As a further improvement of the above technical solution: an oil-free bushing is provided in the guide sleeve.

[0011] As a further improvement of the above technical solution: a first sealing seat is provided on the bracket, a second sealing seat is provided on the support, the second sealing seat is located above the first sealing seat, a corrugated sealing cover is connected between the second sealing seat and the first sealing seat, the guide sleeve is located on the inner side of the corrugated sealing cover, a corrugated sealing tube is provided on the outer periphery of the lifting guide member, the lower end of the corrugated sealing tube is connected to the support, and the upper end of the corrugated sealing tube is connected to the first sealing seat.

[0012] As a further improvement of the above technical solution: the bracket is provided with a first adjustment plate, the first adjustment plate is provided with a second adjustment plate, the first adjustment plate is provided with a first waist-shaped adjustment hole, the second adjustment plate is provided with a second waist-shaped adjustment hole, the second waist-shaped adjustment hole is arranged vertically with the first waist-shaped adjustment hole, and the lifting guide is provided on the second adjustment plate.

[0013] As a further improvement of the above technical solution: a spherical washer for mounting the lifting guide is provided on the second adjustment plate.

[0014] As a further improvement of the above technical solution: the lifting drive component is a hydraulic cylinder, and the hydraulic cylinder is integrated with a hydraulic lock and a throttle valve.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The lifting device for flammable and explosive materials disclosed in the present invention is characterized in that the lifting object moves along the moving guide member into the bracket, and the moving guide member is arranged in the water tank. The water in the water tank can clean and lubricate the moving guide member, reduce the dust adhering to the moving guide member, and keep the moving guide member moist, which is conducive to reducing the friction between the lifting object and the lifting object, and greatly reducing the explosion risk of energetic solid materials; at least one end of the water tank is provided with a water stop member that can float up and down, and when the lifting object needs to move to the moving guide member or leave the moving guide member, the water stop member can be squeezed to sink the water stop member, so that it can pass smoothly. After the lifting object passes, the water stop member floats up, reducing the overflow of water in the water tank, so that the moving guide member remains immersed in water. After the lifting object is in place on the bracket, the positioning component positions the lifting object to avoid accidental movement of the lifting object during lifting, and finally the lifting drive member drives the bracket, the lifting object, etc. to rise and fall as a whole, with a simple structure, a high degree of automation, good reliability, and is conducive to reducing labor intensity and improving efficiency.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional structural schematic diagram of the lifting device for flammable and explosive materials at a first angle of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the lifting device for flammable and explosive materials at a second angle of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting device for flammable and explosive materials of the present invention at a third angle.

[0021] Figure 4 It is a cross-sectional structural schematic diagram of the present invention.

[0022] Figure 5 yes Figure 1 Enlarged view of point A in the middle.

[0023] Figure 6 yes Figure 1 Enlarged view of point B in the middle.

[0024] Figure 7 yes Figure 4 Enlarged view of point C in the middle.

[0025] Figure 8 yes Figure 4 Enlarged view of point D in the middle.

[0026] The symbols in the figure represent:

[0027] 1. Bracket; 11. First limit switch; 12. Second limit switch; 13. Second sealing seat; 14. First adjusting plate; 141. First waist-shaped adjusting hole; 15. Second adjusting plate; 151. Second waist-shaped adjusting hole; 16. Spherical washer; 2. Bracket; 21. Moving guide; 22. Positioning assembly; 221. First positioning cylinder; 222. Second positioning cylinder; 23. First sealing seat; 24. Water tank; 25. Water stop; 3. Lifting drive; 31. Hydraulic lock and throttle valve; 4. Lifting guide assembly; 41. Lifting guide; 42. Guide sleeve; 51. Corrugated sealing cover; 52. Corrugated sealing tube. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Figures 1 to 8 An embodiment of the lifting device for inflammable and explosive materials of the present invention is shown. The lifting device for inflammable and explosive materials of this embodiment comprises a bracket 1 and a bracket 2. The bracket 1 is provided with a lifting driving member 3 for driving the bracket 2 to lift. The bracket 2 is provided with a moving guide member 21 and a positioning assembly 22 for preventing the lifting object from moving along the moving guide member 21. The moving guide member 21 is arranged in a water tank 24. At least one end of the water tank 24 is provided with a water stop member 25 that can float up and down. For details, see Figure 5 and Figure 7 , wherein the movable guide member 21 may be a guide rail, a guide column, etc.; when the lifting object enters from one end of the water tank 24 and leaves from the other end, water stop members 25 need to be provided at both ends of the water tank 24, and when the lifting object enters and leaves from the same end of the water tank 24, the water tank 24 may only be provided with a water stop member 25 at one end. Preferably, the water stop member 25 is a water stop block, and of course in other embodiments, the water stop member 25 may also be a baffle, etc., and a spring or other component may be provided under the water stop member 25 to achieve up and down floating, and the structure is simple and reliable.

[0033] In the lifting device for inflammable and explosive materials of this embodiment, the lifting object moves along the moving guide 21 into the bracket 2. The moving guide 21 is arranged in the water tank 24. The water in the water tank 24 can clean and lubricate the moving guide 21, reduce dust adhering to the moving guide 21, and keep the moving guide 21 moist, which is conducive to reducing the friction between the lifting object and the moving guide 21, and greatly reducing the explosion risk of energetic solid materials; at least one end of the water tank 24 is provided with a water stop 25 that can float up and down. When the lifting object needs to move to the moving guide 21 or leave the moving guide 21, the water stop 25 can be squeezed to make the water stop 25 sink, so that it can pass smoothly, and reduce the friction and squeezing between the lifting object and the water stop 25, greatly reducing the explosion risk of energetic materials. After the lifting object passes, the water stop 25 floats up, reducing the overflow of water in the water tank 24, so that the moving guide 21 remains immersed in water. After the lifting object is in place on the bracket 2, the positioning component 22 positions the lifting object to prevent the lifting object from accidentally moving during lifting. Finally, the lifting drive member 3 drives the bracket 2, the lifting object, etc. to rise and fall as a whole. It has a simple structure, a high degree of automation, good reliability, and is conducive to reducing labor intensity and improving efficiency.

[0034] See Figure 2 and Figure 3 In this embodiment, the positioning assembly 22 includes a first positioning cylinder 221 and a second positioning cylinder 222, and the first positioning cylinder 221 and the second positioning cylinder 222 are spaced apart along the length direction of the movable guide 21. When the lifting object needs to move along the movable guide 21, the piston rods of the first positioning cylinder 221 and the second positioning cylinder 222 are retracted to avoid obstruction. After the lifting object is in place, the piston rods of the first positioning cylinder 221 and the second positioning cylinder 222 are extended, and the lifting object cannot continue to move along the movable guide 21. The structure is simple and the reliability is good. Compared with the motor, the first positioning cylinder 221 and the second positioning cylinder 222 are more suitable for energetic materials to avoid explosion.

[0035] As a preferred embodiment, the first positioning cylinder 221 and the second positioning cylinder 222 are both arranged in the up-down direction, and the bracket 1 is provided with a first limit switch 11 and a second limit switch 12, the first limit switch 11 is located on one side of the first positioning cylinder 221, and the second limit switch 12 is located on one side of the second positioning cylinder 222. The first positioning cylinder 221 and the second positioning cylinder 222 are both arranged in the up-down direction, which can make full use of the vertical space of the bracket 2. Of course, in other embodiments, the first positioning cylinder 221 and the second positioning cylinder 222 can also be horizontally arranged on the side of the movable guide 21, but the width direction of the bracket 2 will be increased; the first limit switch 11 can be used to limit the lowest position of the piston rod of the first positioning cylinder 221 and the second positioning cylinder 222, and the second limit switch 12 is used to limit the highest position of the piston rod of the first positioning cylinder 221 and the second positioning cylinder 222, further improving reliability. Of course, the first limit switch 11 and the second limit switch 12 can also be exchanged. Compared with the motor, the first positioning cylinder 221 and the second positioning cylinder 222 are more suitable for energetic materials to avoid explosion.

[0036] See Figure 3 , Figure 4 and Figure 8 In this embodiment, a lifting guide assembly 4 is provided between the bracket 1 and the bracket 2. The lifting guide assembly 4 provides a guide for the lifting movement of the bracket 2, making the lifting process more stable and smooth, and avoiding deviation.

[0037] Furthermore, in this embodiment, the lifting guide assembly 4 includes lifting guides 41 disposed on both sides of the lifting drive member 3 and guide sleeves 42 disposed on the bracket 2, and the guide sleeves 42 are sleeved on the outer periphery of the lifting guides 41. Among them, the lifting guides 41 preferably adopt guide columns, which cooperate with the guide sleeves 42 to play a good guiding role, making the lifting process more stable and smooth, and avoiding deviation. Of course, in other embodiments, the lifting guides 41 can also be guide rails, slide grooves, etc., and the guide sleeves 42 can also be rollers, sliders, etc., which will not be repeated.

[0038] Furthermore, in this embodiment, an oil-free bushing (not shown) is provided in the guide sleeve 42. The oil-free bushing is provided between the guide sleeve 42 and the lifting guide member 41, which can further improve the motion accuracy, reduce friction resistance, and reduce the risk of explosion.

[0039] Further, in this embodiment, the bracket 2 is provided with a first sealing seat 23, the support 1 is provided with a second sealing seat 13, the second sealing seat 13 is located above the first sealing seat 23, a corrugated sealing cover 51 is connected between the second sealing seat 13 and the first sealing seat 23, the guide sleeve 42 is located inside the corrugated sealing cover 51, a corrugated sealing tube 52 is provided on the outer periphery of the lifting guide member 41, the lower end of the corrugated sealing tube 52 is connected to the bracket 1, and the upper end of the corrugated sealing tube 52 is connected to the first sealing seat 23. For details, see Figure 4 The bellows sealing cover 51 and the bellows sealing tube 52 can form closed spaces on the upper and lower sides of the guide sleeve 42 respectively, so as to avoid entering the gap between the guide sleeve 42 and the lifting guide member 41, thereby avoiding explosion of energetic materials when they are rubbed and squeezed, thereby further improving safety. Correspondingly, the connection between the lifting drive member 3 and the first sealing seat 23 is also located on the inner side of the bellows sealing cover 51, and the bellows sealing cover 51 and the bellows sealing tube 52 can be retracted and will not hinder the lifting movement of the bracket 2. The structure is reasonable and effective.

[0040] See Figure 6 and Figure 8 In this embodiment, the bracket 1 is provided with a first adjustment plate 14, the first adjustment plate 14 is provided with a second adjustment plate 15, the first adjustment plate 14 is provided with a first waist-shaped adjustment hole 141, the second adjustment plate 15 is provided with a second waist-shaped adjustment hole 151, the second waist-shaped adjustment hole 151 is arranged perpendicular to the first waist-shaped adjustment hole 141, and the lifting guide 41 is provided on the second adjustment plate 15. The position of the lifting guide 41 can be adjusted in four directions, front, back, left, and right, by the first adjustment plate 14 and the second adjustment plate 15, so as to compensate for the manufacturing error, so that the lifting guides 41 on both sides remain parallel, ensure the accuracy of the lifting movement of the bracket 2, reduce friction, and further improve safety.

[0041] Furthermore, in this embodiment, a spherical washer 16 for installing the lifting guide 41 is provided on the second adjustment plate 15, which is convenient for adjusting the installation angle of the lifting guide 41 in a small range, thereby compensating for manufacturing errors, so that the lifting guides 41 on both sides remain parallel, ensuring the accuracy of the lifting movement of the bracket 2, reducing friction, and further improving safety. The structure is simple and effective.

[0042] As a preferred embodiment, the lifting drive member 3 is a hydraulic cylinder, which is integrated with a hydraulic lock and a throttle valve 31. Compared with a motor, a hydraulic cylinder is more suitable for energetic materials to avoid explosion. The hydraulic cylinder is integrated with a hydraulic lock and a throttle valve 31, which is conducive to preventing the bracket 2 from falling due to oil leakage from the hydraulic cylinder joint or rupture of the oil pipe, further improving safety.

[0043] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A lifting device for flammable and explosive materials, characterized in that: The invention comprises a support (1) and a bracket (2); the support (1) is provided with a lifting driving member (3) for driving the bracket (2) to lift; the bracket (2) is provided with a moving guide member (21) and a positioning assembly (22) for preventing a lifting object from moving along the moving guide member (21); the moving guide member (21) is arranged in a water tank (24); and at least one end of the water tank (24) is provided with a water stop member (25) capable of floating up and down.

2. The lifting device for flammable and explosive materials according to claim 1, characterized in that: The positioning assembly (22) comprises a first positioning cylinder (221) and a second positioning cylinder (222), wherein the first positioning cylinder (221) and the second positioning cylinder (222) are spaced apart along the length direction of the movable guide member (21).

3. The lifting device for flammable and explosive materials according to claim 2, characterized in that: The first positioning cylinder (221) and the second positioning cylinder (222) are both arranged in the up-down direction; the bracket (1) is provided with a first limit switch (11) and a second limit switch (12); the first limit switch (11) is located on one side of the first positioning cylinder (221), and the second limit switch (12) is located on one side of the second positioning cylinder (222).

4. The lifting device for flammable and explosive materials according to claim 1, characterized in that: A lifting guide assembly (4) is provided between the support (1) and the bracket (2).

5. The lifting device for flammable and explosive materials according to claim 4, characterized in that: The lifting guide assembly (4) comprises lifting guide members (41) arranged on both sides of the lifting drive member (3) and a guide sleeve (42) arranged on the bracket (2), wherein the guide sleeve (42) is sleeved on the outer periphery of the lifting guide member (41).

6. The lifting device for flammable and explosive materials according to claim 5, characterized in that: An oil-free bushing is arranged inside the guide sleeve (42).

7. The lifting device for flammable and explosive materials according to claim 5, characterized in that: The bracket (2) is provided with a first sealing seat (23), the support (1) is provided with a second sealing seat (13), the second sealing seat (13) is located above the first sealing seat (23), a corrugated sealing cover (51) is connected between the second sealing seat (13) and the first sealing seat (23), the guide sleeve (42) is located on the inner side of the corrugated sealing cover (51), a corrugated sealing tube (52) is provided on the outer periphery of the lifting guide member (41), the lower end of the corrugated sealing tube (52) is connected to the bracket (1), and the upper end of the corrugated sealing tube (52) is connected to the first sealing seat (23).

8. The lifting device for flammable and explosive materials according to claim 5, characterized in that: The bracket (1) is provided with a first adjustment plate (14), the first adjustment plate (14) is provided with a second adjustment plate (15), the first adjustment plate (14) is provided with a first waist-shaped adjustment hole (141), the second adjustment plate (15) is provided with a second waist-shaped adjustment hole (151), the second waist-shaped adjustment hole (151) is arranged vertically with the first waist-shaped adjustment hole (141), and the lifting guide (41) is provided on the second adjustment plate (15).

9. The lifting device for flammable and explosive materials according to claim 8, characterized in that: The second adjustment plate (15) is provided with a spherical washer (16) for mounting the lifting guide member (41).

10. The lifting device for inflammable and explosive materials according to any one of claims 1 to 9, characterized in that: The lifting drive component (3) is a hydraulic cylinder, and the hydraulic cylinder is integrated with a hydraulic lock and a throttle valve (31).

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