Electric chain hoist for clean room

Abstract

The utility model discloses an electric chain hoist for a clean room, which relates to the technical field of electric hoists, and comprises an electric hoist, a bottom plate, a peripheral side wall plate, an organ shield and a chain box, the peripheral side wall plate is arranged around the bottom plate, and the peripheral side wall plate and the bottom plate define a mounting space for mounting the electric hoist. A first through hole and a second through hole are formed in the bottom plate, a top opening of the chain box covers the second through hole, one end of the organ shield covers the bottom of the through hole, a blocking plate is arranged at the other end of the organ shield, and a through hole matched with a rod-shaped part of a hook body of the lifting hook is formed in the middle of the blocking plate; according to the electric hoist, dust and leaked oil are prevented from polluting the working environment below through the partition function of the bottom plate, the peripheral side wall plate, the organ protective cover, the chain box and the blocking plate, the environmental cleanliness is improved when the electric hoist is used, and the environmental protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to a clean room chain electric hoist. Background Art

[0002] Electric hoist is a special lifting equipment installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places.

[0003] Taking the chain electric hoist as an example, after long-term use, it may leak oil due to aging or damage of the lubricating oil seal. In the face of a working environment that needs to maintain cleanliness, the leaked oil mixed with the dirt attached to the surface of the equipment after long-term use will drip together, and the vibration generated by the equipment during use will also cause the dust attached to the surface of the equipment to fall off. Both dust and oil will pollute the working environment. At present, the electric hoist with oil leakage is only maintained, but there is still a risk of oil leakage during use after maintenance. There is no corresponding solution to the problem of shaking off dust, and the problem of leaked oil polluting the working environment cannot be fundamentally solved.

[0004] Therefore, people are in urgent need of a clean room chain electric hoist that can improve the environmental cleanliness when the electric hoist is used and improve the environmental protection effect. Summary of the Invention

[0005] The purpose of the utility model is to provide a clean room chain electric hoist to solve the problems existing in the above-mentioned prior art. The utility model utilizes the partition function of the bottom plate, the peripheral side wall plate, the accordion shield, the sealing plate and the chain box to block the leakage of oil and the movement path of vibration or dust, thereby improving the environmental cleanliness and environmental protection effect of the electric hoist when it is used.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a clean room chain electric hoist, comprising an electric hoist, a base plate, side wall panels, an accordion guard and a chain box with only a top opening, wherein the side wall panels are arranged around the base plate, and the side wall panels and the base plate are arranged to form an installation space, and the electric hoist is installed in the installation space, and the base plate is provided with a first through hole for the hook and the chain of the electric hoist to pass through, and a second through hole for the chain to pass through one end away from the hook, the top opening of the chain box is covered at the second through hole, one end of the accordion guard is covered at the bottom of the first through hole, and a sealing plate is provided at the other end, and a through hole matching the rod-shaped portion of the hook body of the hook is provided in the middle of the sealing plate.

[0007] Preferably, the clean room chain electric hoist also includes a first connecting mechanism, a second connecting mechanism and a third connecting mechanism. The first connecting mechanism is arranged on the base plate, and the end of the first connecting mechanism away from the base plate is provided with a first connecting portion connected to the bottom of the electric hoist. The second connecting mechanism is arranged on the base plate or the peripheral side wall plate, and the end of the second connecting mechanism away from the base plate or the peripheral side wall plate is provided with a second connecting portion connected to the side of the electric hoist. The third connecting mechanism is arranged on the base plate or the peripheral side wall plate, and the third connecting mechanism is provided with a third connecting portion connected to the rear of the electric hoist.

[0008] Preferably, the first connecting mechanism includes a first fixing plate, a first connecting plate and the first connecting portion, the first fixing plate is bolted to the base plate, one end of the first connecting plate is connected to the first fixing plate, and the other end is connected to the first connecting portion; the second connecting mechanism includes a second fixing plate, a second connecting plate and the second connecting portion, the second fixing plate is bolted to the base plate or the peripheral wall plate, one end of the second connecting plate is connected to the second fixing plate, and the other end is connected to the second connecting portion; the third connecting mechanism includes a third fixing plate, a third connecting plate and the third connecting portion, the third fixing plate is bolted to the base plate and / or the peripheral wall plate, one end of the third connecting plate is connected to the third fixing plate, and the other end is connected to the third connecting portion.

[0009] Preferably, the first fixing plate, the first connecting plate and the first connecting part are integrally arranged, and the first connecting part is bolted to the connecting ear provided on the electric hoist; the second fixing plate, the second connecting plate and the second connecting part are integrally arranged, and the second connecting part is bolted to the connecting ear provided on the electric hoist; the third fixing plate, the third connecting plate and the third connecting part are integrally arranged, and the third connecting part is bolted to the flange of the electric hoist.

[0010] Preferably, an annular rib is provided extending upwardly along the four edges of the bottom plate, and the outer peripheral wall of the annular rib is connected to the bottom of the peripheral side wall plate.

[0011] Preferably, the annular rib is connected to the peripheral side wall plate by bolts.

[0012] Preferably, the peripheral side wall plate includes two flat plates and two U-shaped plates, and the flat plates and the U-shaped plates are alternately arranged to form a cylindrical structure. The two side ribs of the U-shaped plate are bolted to the inner wall surfaces of the flat plates on both sides, and the bottom of the rib of the U-shaped plate is flush with the top of the annular rib.

[0013] Preferably, a U-shaped notch is provided on the upper portion of the two U-shaped plates for the rail to pass through.

[0014] Preferably, a flange edge is extended in all directions from the top of the chain box, and the flange edge and the top of the accordion guard are connected to the base plate by bolts. Sealing gaskets are provided between the flange edge and the base plate and between the accordion guard and the base plate.

[0015] Preferably, two U-shaped parts are provided on the inner side of the folding plates at both ends of the accordion guard, and the two U-shaped parts are spliced to form an annular structure that matches the folding plates at the ends of the accordion guard. The two U-shaped parts at the top of the accordion guard are connected to the bottom plate by bolts, and the two U-shaped parts at the bottom of the accordion guard are connected to the sealing plate by bolts.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The arrangement of the bottom plate and the surrounding side wall panels can form a partition box with an open top. When the electric hoist is installed in it, the partition box can prevent oil dripping and dust from vibrating, preventing oil leaking from the main body of the electric hoist and dust from vibrating to pollute the working environment below; the accordion guard can surround the chain between the hook and the main body of the electric hoist, and cooperate with the arrangement of the bottom sealing plate to also prevent oil dripping and dust from vibrating; the chain box stores the chain to prevent oil and dust on the chain from polluting the working environment below; that is, the partition function of the bottom plate, the surrounding side wall panels, the accordion guard, the sealing plate and the chain box is utilized to prevent leaked oil and dust from vibrating to pollute the working environment below, thereby improving the environmental cleanliness when the electric hoist is in use and improving the environmental protection effect.

[0018] Compared with the prior art, other solutions of the present invention have achieved the following technical effects:

[0019] The first connecting mechanism, the second connecting mechanism and the third connecting mechanism can improve the installation stability of the electric hoist.

[0020] The provision of an annular rib on the bottom plate can prevent the intercepted oil from seeping out from the gap between the bottom plate and the surrounding side wall plate, thereby improving the barrier effect on oil and dust.

[0021] The U-shaped plate's ribs can seal the gap between the U-shaped plate and the flat surface, improving the barrier effect against oil, dirt and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is an exploded view of the utility model clean room electric chain hoist with the internal electric hoist hidden;

[0024] Figure 2 This is a schematic structural diagram of the first connecting mechanism of the present utility model;

[0025] Figure 3 This is a schematic structural diagram of the second connecting mechanism of the present invention;

[0026] Figure 4 This is a schematic structural diagram of the third connecting mechanism of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the electric chain hoist for clean rooms of the utility model;

[0028] Figure 6 This is the front view of the utility model clean room electric chain hoist;

[0029] Figure 7 This is the left side view of the utility model clean room electric chain hoist;

[0030] Figure 8 This is a top view of the clean room electric chain hoist of the utility model;

[0031] Figure 9 This is a schematic diagram of the connection between the electric hoist and the connecting mechanism of the utility model;

[0032] Figure 10 This is a schematic diagram of the connection between the blocking plate and the hook of the utility model;

[0033] Figure 11 This is a schematic diagram of the structure of the clean room electric chain hoist connected to the track of the utility model;

[0034] Among them, 1. clean room chain electric hoist; 2. bottom plate; 3. peripheral side wall plate; 4. accordion guard; 5. first through hole; 6. blocking plate; 7. through opening; 8. hook-shaped portion; 9. rod-shaped portion; 10. mounting seat; 11. first connecting mechanism; 12. second connecting mechanism; 13. third connecting mechanism; 14. first fixed plate; 15. first connecting plate; 16. first connecting portion; 17. second fixed plate; 18. second connecting plate; 19. second connecting portion; 20. third fixed plate; 21. third connecting plate; 22. third connecting portion; 23. flange; 24. annular rib; 25. flat plate; 26. U-shaped plate; 27. chain box; 28. second through hole; 29. sealing gasket; 30. electric hoist; 31. U-shaped part; 32. track; 33. U-shaped notch. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0036] The purpose of the utility model is to provide a clean room chain electric hoist to solve the problems existing in the prior art. It utilizes the partition function of the bottom plate, the peripheral side wall plate, the accordion shield, the sealing plate and the chain box to block the leakage of oil and the movement path of vibration or dust, thereby improving the environmental cleanliness and environmental protection effect of the electric hoist when it is used.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0038] Please refer to Figures 1 to 11As shown, a clean room chain electric hoist 1 is provided, comprising an electric hoist 30, a base plate 2, a peripheral side wall plate 3, an organ shield 4, and a chain box 27 with only a top opening and closed around and bottom. The chain box 27 is used to store the chain. The peripheral side wall plate 3 is arranged around the base plate 2. The peripheral side wall plate 3 and the base plate 2 are surrounded to form an installation space for installing the electric hoist 30. The electric hoist 30 is installed in the installation space. The base plate 2 is provided with a first through hole 5 for the hook of the electric hoist 30 and the chain to pass through, as well as A second through hole 28 is provided for the chain to pass through one end away from the hook, and the top opening of the chain box 27 is provided at the second through hole 28. One end of the accordion cover 4 is provided at the bottom of the first through hole 5, and a blocking plate 6 is provided at the other end. A through hole 7 is provided in the middle of the blocking plate 6 to match the cylindrical part of the top of the hook body of the hook. Specifically, the hook of the electric hoist 30 includes a hook body part and a mounting seat 10 part. The hook body part includes a hook portion 8 and a rod portion 9. The hook portion 8 is connected to the mounting seat 10 through the rod portion 9. The blocking plate 6 is provided in the middle of the blocking plate 6 to match the cylindrical part of the top of the hook body. Specifically, the hook of the electric hoist 30 includes a hook body part and a mounting seat 10 part. The hook body part includes a hook portion 8 and a rod portion 9. The hook portion 8 is connected to the mounting seat 10 through the rod portion 9. The central opening 7 of the plate 6 matches the rod-shaped portion 9, and the portion surrounding the opening 7 of the sealing plate 6 is attached to the bottom surface of the mounting seat 10; the specific principle of this shell is: the arrangement of the bottom plate 2 and the surrounding side wall plate 3 can form a partition box with an open top. When the electric hoist 30 is installed therein, the partition box can block the dripping of oil and the vibration of dust, preventing the oil leaked from the main part of the electric hoist 30 and the vibration of dust from polluting the working environment below; the accordion shield 4 can surround the hook The chain between the main part of the electric hoist 30, in conjunction with the setting of the bottom sealing plate 6, also plays a role in blocking the dripping of oil and the vibration of dust; the chain box 27 stores the chain to prevent the oil and dust on the chain from polluting the working environment below; that is, the partition function of the bottom plate 2, the peripheral side wall plate 3, the accordion guard 4, the sealing plate 6 and the chain box 27 is utilized to prevent the leaked oil and the vibration of dust from polluting the working environment below, thereby improving the environmental cleanliness when the electric hoist 30 is in use and improving the environmental protection effect.

[0039] The blocking plate 6 includes two plates, and semicircular notches are provided at opposite ends of the two plates. When the two plates are spliced together, the two semicircular notches form a through opening 7 that matches the rod-shaped portion 9. The two plates are installed at the bottom end of the accordion cover 4.

[0040] When the sealing plate 6 is set as two plates, an annular notch can be set on the rod-shaped portion 9, the upper surface of the annular notch is flush with the lower surface of the mounting seat 10, the axial thickness of the annular notch is the same as the thickness of the plate, and the inner diameter of the annular notch is the same as the diameter of the through opening 7. In this way, when installing the sealing plate 6, the semicircular notches of the plates on both sides can be inserted into the annular notch to improve the connection strength and sealing effect.

[0041] The clean room chain electric hoist 1 also includes a first connecting mechanism 11 and a second connecting mechanism 12. The first connecting mechanism 11 is arranged on the base plate 2, and the end of the first connecting mechanism 11 away from the base plate 2 is provided with a first connecting portion 16 connected to the bottom of the electric hoist 30. The second connecting mechanism 12 is arranged on the base plate 2 or the surrounding side wall plate 3, and the end of the second connecting mechanism 12 away from the base plate 2 or the surrounding side wall plate 3 is provided with a second connecting portion 19 connected to the side of the electric hoist 30. The first connecting mechanism 11 realizes the connection to the electric hoist 30 from the bottom, and the second connecting mechanism 12 realizes the connection to the electric hoist 30 from the side, while preventing the partition box from lateral deflection. The cooperation between the first connecting mechanism 11 and the second connecting mechanism 12 can improve the connection stability between the partition box and the electric hoist 30.

[0042] In this embodiment, the first connecting mechanism 11 includes a first fixing plate 14, a first connecting plate 15 and a first connecting portion 16. The first fixing plate 14 is bolted to the base plate 2. One end of the first connecting plate 15 is connected to the first fixing plate 14, and the other end is connected to the first connecting portion 16. The first fixing plate 14, the first connecting plate 15 and the first connecting portion 16 can be arranged as a whole to improve the structural strength, wherein the first connecting portion 16 is formed by extending from the first connecting plate 15. The connection method of the first connecting portion 16 and the electric hoist 30 is as follows: a connecting ear is provided at the bottom of the electric hoist 30, and the connecting ear is parallel to and tightly attached to the first connecting portion 16. A through hole or a threaded hole is provided on the connecting ear and the first connecting portion 16. The bolt is passed through the through hole or the threaded hole and then threadedly connected to the nut and tightened to achieve the connection between the first connecting portion 16 and the electric hoist 30.

[0043] The first connecting mechanism 11 may include two groups of connecting mechanisms consisting of a first fixing plate 14, a first connecting plate 15 and a first connecting portion 16. The two groups of connecting mechanisms are symmetrically arranged, and the first connecting plates 15 of the two groups of connecting mechanisms are arranged closely. At this time, two connecting ears can also be set on the electric hoist 30, and the two connecting ears are respectively arranged on both sides of the two first connecting plates 15.

[0044] In this embodiment, the second connecting mechanism 12 includes a second fixing plate 17, a second connecting plate 18 and a second connecting portion 19. The second fixing plate 17 is bolted to the bottom plate 2 or the peripheral side wall plate 3. One end of the second connecting plate 18 is connected to the second fixing plate 17, and the other end is connected to the second connecting portion 19. The second fixing plate 17, the second connecting plate 18 and the second connecting portion 19 can be arranged as a whole to improve the structural strength, wherein the second connecting portion 19 is formed by extending from the second connecting plate 18. The connection method of the second connecting portion 19 and the electric hoist 30 is as follows: a connecting ear is provided on the side of the electric hoist 30, and the connecting ear is parallel to and tightly attached to the second connecting portion 19. A through hole or a threaded hole is provided on the connecting ear and the second connecting portion 19. The bolt is passed through the through hole or the threaded hole and then threadedly connected to the nut and tightened to achieve the connection between the second connecting portion 19 and the electric hoist 30.

[0045] The second connecting mechanism 12 may include two groups of connecting mechanisms consisting of a second fixing plate 17, a second connecting plate 18 and a second connecting portion 19. The two groups of connecting mechanisms are symmetrically arranged. At this time, two connecting ears can also be set on the electric hoist 30. The two connecting ears are arranged between the two second connecting plates 18, and the two connecting ears are respectively tightly attached to one second connecting plate 18.

[0046] In another embodiment, the first connecting mechanism 11 and the second connecting mechanism 12 can be L-shaped plates, and the two plate surfaces of the L-shaped plates are respectively connected to the base plate 2 and the connecting ears of the electric hoist 30, and the structural strength can be improved by increasing the thickness of the plate surface.

[0047] The clean room chain electric hoist 1 also includes a third connecting mechanism 13, which is arranged on the bottom plate 2 or the peripheral side wall plate 3. The third connecting mechanism 13 is provided with a third connecting portion 22 connected to the rear of the electric hoist 30, which assists in connecting with the electric hoist 30 from the rear of the electric hoist 30, further improving the connection stability between the partition box and the electric hoist 30.

[0048] In this embodiment, the third connecting mechanism 13 includes a third fixed plate 20, a third connecting plate 21 and a third connecting portion 22. The third fixed plate 20 is bolted to the bottom plate 2 and / or the peripheral side wall plate 3. One end of the third connecting plate 21 is connected to the third fixed plate 20, and the other end is connected to the third connecting portion 22. The third fixed plate 20, the third connecting plate 21 and the third connecting portion 22 can be arranged as an integral whole to improve the structural strength. The third connecting portion 22 can be formed by extending the third connecting plate 21; since the rear part of the electric hoist 30 has a flange 23 for connecting the motor and the rotating part of the electric hoist 30, the flange 23 can be used as a connection point with the third connecting portion 22. At this time, the third connecting portion 22 is an arc-shaped structure, which is close to the edge of the disk surface of the flange 23, and the connection between the third connecting portion 22 and the flange 23 is completed by bolts.

[0049] The third connection mechanism 13 may include two groups of connection mechanisms consisting of a third fixing plate 20, a third connection plate 21 and a third connection portion 22. The two groups of connection mechanisms are symmetrically arranged, and the third connection portions 22 of the two groups of connection mechanisms are connected to the flange 23 from the left and right sides.

[0050] In another embodiment, the third connecting mechanism 13 may be an L-shaped plate, the two plate surfaces of which are respectively connected to the flange 23 and the bottom plate 2 or the peripheral side wall plate 3 , and the structural strength thereof may be improved by increasing the plate surface thickness.

[0051] Since a gap may appear between the bottom plate 2 and the peripheral side wall plate 3 after they are connected, an annular rib 24 is integrally provided on the four sides of the bottom plate 2 extending upward. The outer peripheral wall of the annular rib 24 is connected to the bottom of the peripheral side wall plate 3, which can prevent the intercepted oil and dust from overflowing from the gap between the bottom plate 2 and the peripheral side wall plate 3, thereby improving the barrier effect against oil and dust.

[0052] A sealing strip may be provided between the annular rib 24 and the peripheral side wall plate 3 to further improve the sealing effect.

[0053] In this embodiment, the peripheral side wall plate 3 includes two flat plates 25 and two U-shaped plates 26. The flat plates 25 and the U-shaped plates 26 are alternately arranged to form a cylindrical structure. The side ribs of the U-shaped plate 26 are connected to the inner wall surfaces of the flat plates 25 on both sides. The bottom of the side rib of the U-shaped plate 26 is flush with the top of the annular side rib 24. The side rib of the U-shaped plate 26 can block the gap between the U-shaped plate 26 and the flat surface, thereby improving the barrier effect against oil and dust.

[0054] A sealing strip may be provided between the rib of the U-shaped plate 26 and the flat plate 25 to further enhance the sealing effect.

[0055] In this embodiment, the flat plate 25, the U-shaped plate 26 and the bottom plate 2 are all connected by bolts, which is convenient for disassembly and transportation, as well as for subsequent maintenance of the electric hoist 30; in another embodiment, the flat plate 25, the U-shaped plate 26 and the bottom plate 2 are all connected by snap-fitting; in another embodiment, the flat plate 25, the U-shaped plate 26 and the bottom plate 2 are all connected by welding.

[0056] In actual use, if the lower surface of the track 32 for moving the electric hoist 30 is lower than the upper surface of the U-shaped plate 26 , a U-shaped notch 33 for the track 32 to pass through needs to be opened on the upper part of the two U-shaped plates 26 .

[0057] A flange edge is extended in all directions from the top of the chain box 27. The flange edge and the top of the accordion cover 4 are connected to the bottom plate 2 through a sealing gasket 29. The connection method is bolt connection to improve the anti-leakage effect.

[0058] In this embodiment, the specific connection method between the accordion shield 4 and the base plate 2 and the sealing plate 6 is: two U-shaped parts 31 are provided on the inner side of the folding plates at both ends of the accordion shield 4, and the two U-shaped parts 31 are spliced to form an annular structure that matches the folding plates at the ends of the accordion shield 4. The two U-shaped parts 31 at the top of the accordion shield 4 are connected to the base plate 2 by bolts, and the two U-shaped parts 31 at the bottom of the accordion shield 4 are connected to the sealing plate 6 by bolts, that is, the connection of the accordion shield 4 is completed by clamping.

[0059] A sealing ring may be provided around the opening 7 of the blocking plate 6 at the portion in contact with the mounting seat 10 to improve its anti-leakage effect.

[0060] The present utility model also provides an electric hoist 30 using the above-mentioned clean room chain electric hoist 1. The electric hoist 30 is installed in the clean room chain electric hoist 1 through a first connecting mechanism 11, a second connecting mechanism 12 and a third connecting mechanism 13. The rod-shaped portion 9 of the hook of the electric hoist 30 is installed in the opening 7 of the blocking plate 6.

[0061] In this embodiment, nuts can be welded to designated positions at the locations where the bolts are connected in advance, so as to improve the convenience of subsequent installation.

[0062] Adaptive changes based on actual needs are all within the scope of protection of this utility model.

[0063] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0064] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A clean room electric chain hoist, characterized in that: It includes an electric hoist, a base plate, a surrounding side wall plate, an accordion guard and a chain box with only a top opening. The surrounding side wall plate is arranged around the base plate, and the surrounding side wall plate and the base plate are formed to form an installation space. The electric hoist is installed in the installation space. The base plate is provided with a first through hole for the hook and chain of the electric hoist to pass through, and a second through hole for the chain to pass through one end away from the hook. The top opening of the chain box is covered at the second through hole, one end of the accordion guard is covered at the bottom of the first through hole, and a sealing plate is provided at the other end. The middle part of the sealing plate is provided with a through hole matching the rod-shaped part of the hook body of the hook.

2. The clean room electric chain hoist according to claim 1, characterized in that: The clean room chain electric hoist also includes a first connecting mechanism, a second connecting mechanism and a third connecting mechanism. The first connecting mechanism is arranged on the base plate, and the end of the first connecting mechanism away from the base plate is provided with a first connecting portion connected to the bottom of the electric hoist. The second connecting mechanism is arranged on the base plate or the peripheral side wall plate, and the end of the second connecting mechanism away from the base plate or the peripheral side wall plate is provided with a second connecting portion connected to the side of the electric hoist. The third connecting mechanism is arranged on the base plate or the peripheral side wall plate, and the third connecting mechanism is provided with a third connecting portion connected to the rear of the electric hoist.

3. The clean room electric chain hoist according to claim 2, characterized in that: The first connecting mechanism includes a first fixing plate, a first connecting plate and the first connecting portion, the first fixing plate is bolted to the base plate, one end of the first connecting plate is connected to the first fixing plate, and the other end is connected to the first connecting portion; the second connecting mechanism includes a second fixing plate, a second connecting plate and the second connecting portion, the second fixing plate is bolted to the base plate or the peripheral side wall plate, one end of the second connecting plate is connected to the second fixing plate, and the other end is connected to the second connecting portion; the third connecting mechanism includes a third fixing plate, a third connecting plate and the third connecting portion, the third fixing plate is bolted to the base plate and / or the peripheral side wall plate, one end of the third connecting plate is connected to the third fixing plate, and the other end is connected to the third connecting portion.

4. The clean room electric chain hoist according to claim 3, characterized in that: The first fixing plate, the first connecting plate and the first connecting part are integrally arranged, and the first connecting part is bolted to the connecting ear provided on the electric hoist; the second fixing plate, the second connecting plate and the second connecting part are integrally arranged, and the second connecting part is bolted to the connecting ear provided on the electric hoist; the third fixing plate, the third connecting plate and the third connecting part are integrally arranged, and the third connecting part is bolted to the flange of the electric hoist.

5. The clean room electric chain hoist according to claim 1, characterized in that: Annular ribs are provided along the four edges of the bottom plate and extend upwards, and the outer peripheral wall of the annular rib is connected to the bottom of the peripheral side wall plate.

6. The clean room electric chain hoist according to claim 5, characterized in that: The annular rib is connected to the peripheral side wall plate with bolts.

7. The clean room electric chain hoist according to claim 5, characterized in that: The peripheral side wall plate includes two flat plates and two U-shaped plates. The flat plates and the U-shaped plates are alternately arranged to form a cylindrical structure. The two side ribs of the U-shaped plate are bolted to the inner wall surfaces of the flat plates on both sides. The bottom of the rib of the U-shaped plate is flush with the top of the annular rib.

8. The clean room electric chain hoist according to claim 7, characterized in that: The upper parts of the two U-shaped plates are provided with U-shaped notches for the rails to pass through.

9. The clean room electric chain hoist according to claim 1, characterized in that: The top of the chain box is provided with a flange edge extending in all directions. The flange edge and the top of the accordion shield are connected to the base plate by bolts. Sealing gaskets are provided between the flange edge and the base plate and between the accordion shield and the base plate.

10. The clean room electric chain hoist according to claim 1, characterized in that: Two U-shaped parts are provided on the inner side of the folding plates at both ends of the accordion guard. The two U-shaped parts are spliced to form an annular structure that matches the folding plates at the ends of the accordion guard. The two U-shaped parts at the top of the accordion guard are connected to the bottom plate by bolts, and the two U-shaped parts at the bottom of the accordion guard are connected to the blocking plate by bolts.

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