Oil mist separator

Abstract

The utility model relates to the technical field of oil mist purification equipment, in particular to an oil mist separator which comprises a locking seat assembly, a mounting shell assembly and a sealing cover assembly, and the mounting shell assembly is arranged on the upper side of the locking seat assembly of an anti-falling frame. According to the device, the mounting shell body and the sealing cover body can be arranged in the containing shell and are locked by matching the locking plate with the first locking block and the second locking block, and the containing shell is fixed through the fixing plate and the supporting legs, so that quick disassembly and assembly of the mounting shell body and the sealing cover body can be realized; meanwhile, the first limiting frame, the second limiting frame and the third limiting frame are used for limiting the filter plate, the sponge block and the activated carbon plate correspondingly, rapid disassembly or replacement of the filter plate, the sponge block and the activated carbon plate can be achieved, the device can be simply and rapidly disassembled and assembled, and the device has high cleaning and maintaining efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil mist purification equipment technical field, concretely is an oil mist separator. BACKGROUND

[0002] When the workpiece is processed through the machine tool in the industrial production, a large amount of oil mist is generated, the oil mist contains a large amount of particles, if not handled directly discharges, not only can cause the influence to the air, still can cause the harm to the staff, so need to handle the oil mist through the oil mist separator, through multilayer interception and filtration, remove the particle dust and harmful substance in the oil mist.

[0003] The oil mist separator is usually fixed on the top of the machine tool or the special rack through the connecting bolt, the existing part oil mist separator needs to clean the filter structure inside it regularly, the oil mist separator needs to be disassembled when cleaning or maintaining, the dismounting process is more troublesome, so that the cleaning and maintenance efficiency of the oil mist separator is lower, therefore, an oil mist separator is provided for the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an oil mist separator to solve the problems that the existing part oil mist separator needs to clean the filter structure inside it regularly, the oil mist separator needs to be disassembled when cleaning or maintaining, the dismounting process is more troublesome, so that the cleaning and maintenance efficiency of the oil mist separator is lower.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides an oil mist separator, including locking seat subassembly, installation shell subassembly and seal cover subassembly, the upper side of locking seat subassembly is equipped with installation shell subassembly, the front side of installation shell subassembly is equipped with seal cover subassembly, the inside of seal cover subassembly is equipped with first filter subassembly to the left side, the inside of seal cover subassembly is equipped with second filter subassembly in the middle position, the inside of seal cover subassembly is equipped with third filter subassembly to the right side, locking seat subassembly includes fixed plate and support leg, the upper side of fixed plate is fixedly connected with four support legs, the upper side of support leg is fixedly connected with containing shell, the front and rear sides of containing shell are slidably connected with two locking plates, installation shell subassembly includes installation shell body and air inlet pipe, the air inlet of installation shell body is fixedly connected with air inlet pipe, the air outlet of installation shell body is fixedly connected with air outlet pipe, the oil discharge port in installation shell body is fixedly connected with anti -drop frame, the rear side of installation shell body is fixedly connected with first locking block, seal cover subassembly includes seal cover body and positioning protruding, the second sealing rubber frame of seal cover body and the first sealing rubber frame of installation shell body are pasted, the rear side of seal cover body is fixedly connected with two positioning protruding, the back of two positioning protruding and installation shell body are pasted, the front side of seal cover body is fixedly connected with second locking block.

[0007] Preferably, the first filter subassembly includes first limiting frame and filter plate, the left side of the inside of the installation shell body is fixedly connected with two first limiting frames, the filter plate is arranged between the two first limiting frames, the second filter subassembly includes second limiting frame and splash-proof shell, the middle position of the inside of the installation shell body is fixedly connected with two second limiting frames, the back of the two second limiting frames is fixedly connected with the splash-proof shell, the sponge block is arranged between the two second limiting frames, the upper side of the installation shell body is fixedly connected with the fixed block, the front and rear sides of the fixed block are fixedly connected with the multi-stage electric telescopic rod, the lower side of the multi-stage electric telescopic rod is fixedly connected with the sliding plate, the lower side of the sliding plate is pasted with the sponge block, the lower side of the installation shell body is fixedly connected with the oil collection warehouse, the front side of the oil collection warehouse is fixedly connected with the liquid discharge pipe, the third filter subassembly includes third limiting frame and activated carbon plate, the right side of the inside of the installation shell body is fixedly connected with two third limiting frames, the activated carbon plate is arranged between the two third limiting frames.

[0008] Preferably, a plurality of bolt connection holes are arranged on the fixed plate, the upper side of the containing shell is provided with two front and rear symmetrical distribution rectangular limiting grooves, the front side of the installation shell body is provided with the first sealing rubber frame, the rear side of the seal cover body is provided with the second sealing rubber frame.

[0009] Preferably, the first locking block is located in one of the limiting grooves of the containing shell, the two locking plates on the rear side are attached to the first locking block, the second locking block is located in the other limiting groove of the containing shell, and the two locking plates on the front side are attached to the second locking block.

[0010] Preferably, the containing shell is provided with sliding grooves on the front and rear sides, the locking plates are provided with sliding protrusions on the side close to the containing shell, the containing shell is provided with a circular groove on the lower side, and the diameter of the groove of the containing shell is greater than the diameter of the oil collection warehouse.

[0011] Preferably, the left side of the mounting shell body is provided with an air inlet, the right side of the mounting shell body is provided with an air outlet, the lower side of the mounting shell body is provided with an oil discharge port, the upper side of the oil collection warehouse is provided with an oil inlet, the oil inlet of the oil collection warehouse is aligned with the oil discharge port of the mounting shell body, and the liquid discharge pipe is a flexible connecting pipe.

[0012] Preferably, the upper side of the mounting shell body is provided with two adjusting ports, the multi-stage electric telescopic rods pass through the adjusting ports of the mounting shell body, the sliding plate is located in the interior of the mounting shell body, the upper side of the sliding plate is attached to the mounting shell body, the left and right sides of the sliding plate are respectively attached to the second limiting frame, the lower side of the sliding plate is attached to the sponge block, and the lower side of the oil collection warehouse is attached to the fixed plate.

[0013] Compared with the prior art, the device has the advantages that:

[0014] In the utility model, the mounting shell body and the sealing cover body of the device can be placed in the containing shell, and are locked through the locking plate, the first locking block and the second locking block, the containing shell is fixed through the fixed plate and the supporting leg, the quick disassembly and assembly of the mounting shell body and the sealing cover body can be realized, the filter plate, the sponge block and the activated carbon plate are respectively limited through the first limiting frame, the second limiting frame and the third limiting frame, the quick disassembly and replacement of the filter plate, the sponge block and the activated carbon plate can be realized, the device can be simply and quickly disassembled and assembled, and the device has high cleaning and maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sealing cover assembly installation structure schematic view of the utility model;

[0017] Figure 3 It is a second filter assembly installation structure schematic view of the utility model;

[0018] Figure 4The utility model discloses a locking seat subassembly structure schematic view.

[0019] Figure 5 The utility model discloses an installation shell subassembly structure section view.

[0020] Figure 6 The utility model discloses a closing cover subassembly structure rear view.

[0021] Figure 7 The utility model discloses a closing cover subassembly structure section view.

[0022] Figure 8 The utility model discloses a sliding plate installation structure section view.

[0023] Figure 9 The utility model discloses a splash-proof shell installation structure section view.

[0024] Figure 10 The utility model discloses a first filter subassembly structure schematic view.

[0025] Figure 11 The utility model discloses a second limiting frame installation structure schematic view.

[0026] Figure 12 The utility model discloses a third filter subassembly structure schematic view.

[0027] In the drawing: 1, locking seat subassembly;11, fixed plate;12, support leg;13, containing shell;14, locking plate;2, installation shell subassembly;21, installation shell body;22, air inlet pipe;23, air outlet pipe;24, anti -drop frame;25, first locking block;3, closing cover subassembly;31, closing cover body;32, positioning convex;33, second locking block;4, first filter subassembly;41, first limiting frame;42, filter plate;5, second filter subassembly;51, second limiting frame;52, splash-proof shell;53, sponge block;54, fixed block;55, multistage electric telescopic rod;56, sliding plate;57, oil collection depot;58, liquid discharge pipe;6, third filter subassembly;61, third limiting frame;62, activated carbon plate. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the range of the utility model protection.

[0029] In the description of the utility model, it needs to be understood that the orientation words such as '' front, back, top, bottom, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship usually is based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, under the condition of not making opposite statement, these orientation words do not indicate and imply the device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the protection scope of the utility model;The orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0030] In addition, it needs to be explained that using '' first, second '' and the like words to limit parts, just for the convenience of distinguishing the corresponding parts, like not declaring above-mentioned words, do not have special meaning, therefore can not be understood as the limitation of the protection scope of the utility model.

[0031] Please refer to Figures 1-12 The utility model provides a technical scheme:

[0032] An oil mist separator, including locking seat subassembly 1, installation shell subassembly 2 and seal cover subassembly 3, the upside of locking seat subassembly 1 is equipped with installation shell subassembly 2, the front side of installation shell subassembly 2 is equipped with seal cover subassembly 3, the inside left side of seal cover subassembly 3 is equipped with first filter subassembly 4, the inside intermediate position of seal cover subassembly 3 is equipped with second filter subassembly 5, the inside right side of seal cover subassembly 3 is equipped with third filter subassembly 6;Locking seat subassembly 1 includes fixed plate 11 and support leg 12, the upside of fixed plate 11 is fixedly connected with four support legs 12, the upside of support leg 12 is fixedly connected with containing shell 13, the front and rear sides of containing shell 13 are slidably connected with two locking plates 14, installation shell subassembly 2 includes installation shell body 21 and air inlet pipe 22, the air inlet of installation shell body 21 is fixedly connected with air inlet pipe 22, the air outlet of installation shell body 21 is fixedly connected with air outlet pipe 23, the oil discharge port of installation shell body 21 is fixedly connected with anti-drop frame 24, the rear side of installation shell body 21 is fixedly connected with first locking block 25, seal cover subassembly 3 includes seal cover body 31 and positioning protrusion 32, the second sealing rubber frame of seal cover body 31 and the first sealing rubber frame of installation shell body 21 are attached, the rear side of seal cover body 31 is fixedly connected with two positioning protrusions 32, the back side of two positioning protrusions 32 and installation shell body 21 are attached, the front side of seal cover body 31 is fixedly connected with second locking block 33.

[0033] The first filter assembly 4 comprises first limit racks 41 and a filter plate 42, two first limit racks 41 are fixedly connected to the left side of the inner part of the installation shell body 21, and the filter plate 42 is arranged between the two first limit racks 41; the second filter assembly 5 comprises second limit racks 51 and splash-proof shells 52, two second limit racks 51 are fixedly connected to the middle position of the inner part of the installation shell body 21, and the splash-proof shells 52 are fixedly connected to the back sides of the two second limit racks 51; a sponge block 53 is arranged between the two second limit racks 51; a fixed block 54 is fixedly connected to the upper side of the installation shell body 21; a plurality of multi-stage electric telescopic rods 55 are fixedly connected to the front and back sides of the fixed block 54; a sliding plate 56 is fixedly connected to the lower side of the multi-stage electric telescopic rod 55; the lower side of the sliding plate 56 is in abutment with the sponge block 53; an oil collection bin 57 is fixedly connected to the lower side of the installation shell body 21; a liquid discharge pipe 58 is fixedly connected to the front side of the oil collection bin 57; the third filter assembly 6 comprises third limit racks 61 and an activated carbon plate 62, two third limit racks 61 are fixedly connected to the right side of the inner part of the installation shell body 21, and the activated carbon plate 62 is arranged between the two third limit racks 61; the filter plate 42, the sponge block 53 and the activated carbon plate 62 are respectively limited by the first limit racks 41, the second limit racks 51 and the third limit racks 61, so that the filter plate 42, the sponge block 53 and the activated carbon plate 62 can be quickly disassembled or replaced; a plurality of bolt connection holes are arranged on the fixed plate 11; the upper side of the containing shell 13 is provided with two front and back symmetrical rectangular limit grooves; the front side of the installation shell body 21 is provided with a first sealing rubber frame; the rear side of the sealing cover body 31 is provided with a second sealing rubber frame; the installation shell body 21 cannot move forward and backward relative to the sealing cover body 31 through the containing shell 13, so that the installation shell body 21 and the sealing cover body 31 form a sealed space; the first locking block 25 is located in one of the limit grooves of the containing shell 13, the two locking plates 14 located on the rear side are in abutment with the first locking block 25, the second locking block 33 is located in the other limit groove of the containing shell 13, and the two locking plates 14 located on the front side are in abutment with the second locking block 33; the installation shell body 21 and the sealing cover body 31 cannot move up and down through the locking plates 14, so that the installation shell body 21 and the sealing cover body 31 are fixed; the front and back sides of the containing shell 13 are provided with sliding grooves, the sides of the locking plates 14 close to the containing shell 13 are provided with sliding protrusions, the lower side of the containing shell 13 is provided with a circular groove, the diameter of the groove of the containing shell 13 is greater than the diameter of the oil collection bin 57, and the oil collection bin 57 and the liquid discharge pipe 58 can pass through the groove of the containing shell 13; the left side of the installation shell body 21 is provided with an air inlet, the right side of the installation shell body 21 is provided with an air outlet, the lower side of the installation shell body 21 is provided with an oil outlet, the upper side of the oil collection bin 57 is provided with an oil inlet, the oil inlet of the oil collection bin 57 is aligned with the oil outlet of the installation shell body 21, the liquid discharge pipe 58 is a soft connection pipe, the oil in the sponge block 53 can pass through the anti-extraction frame 24 and fall into the oil collection bin 57 when the sponge block 53 is squeezed, and then the oil enters the oil tank through the liquid discharge pipe 58.The upper side of the installation shell body 21 is provided with two adjusting openings, the multi-stage electric telescopic rod 55 passes through the adjusting opening of the installation shell body 21, the sliding plate 56 is located in the interior of the installation shell body 21, the upper side of the sliding plate 56 is attached to the installation shell body 21, the left and right sides of the sliding plate 56 are respectively attached to the second limiting frame 51, the lower side of the sliding plate 56 is attached to the sponge block 53, the lower side of the oil collecting bin 57 is attached to the fixed plate 11, the supporting leg 12 can support the containing shell 13, so that the containing shell 13 has a certain distance from the fixed plate 11, and therefore the oil collecting bin 57 has a storage space.

[0034] Workflow: before using the fixed plate 11 bolted in the right place and power on, through a connection of air pipe 22 and machine connection, through another connection of air pipe 23 and the exhaust pump connection, through the oil pipeline liquid discharge pipe 58 and the oil tank connection, the device is equipped with external controller, the device external controller and multi-stage electric telescopic rod 55 electrically connected, through the external controller can adjust the running state of multi-stage electric telescopic rod 55, the above are prior art;When using the device, start the air suction pump, so that the air at the machine carries the oil mist generated during the machine tool machining process together through the connecting air pipe into the air inlet pipe 22, and then into the installation shell body 21, and then through the filter plate 42 limited by the first limiting frame 41 for preliminary filtering, through the sponge block 53 limited by the second limiting frame 51 to adsorb the oil mist, and through the activated carbon plate 62 limited by the third limiting frame 61 to purify the air. The purified air enters the air outlet pipe 23 from the installation shell body 21, and the air passes through the connecting air pipe and is discharged from the air suction pump. The oil mist collects in the sponge block 53. After a period of time, the worker can start the multi-stage electric telescopic rod 55 fixed by the fixed block 54 through the external controller when the machine tool stops running, and make the sliding plate 56 move down through the multi-stage electric telescopic rod 55, and extrude the sponge block 53 through the sliding plate 56, so that the oil in the sponge block 53 falls into the oil collection tank 57 through the anti-dropping frame 24. The anti-dropping frame 24 can prevent the sponge block 53 from being deformed too much, so that the oil passes through the liquid discharge pipe 58 into the oil tank. The anti-splashing shell 52 can avoid the oil overflowing when the sponge block 53 is extruded, so that the oil flows into the oil collection tank 57. The sponge block 53 has elasticity and can be repeatedly used. After a period of time, the worker can clean the device. At this time, the worker only needs to remove the two connecting air pipes and the oil conveying pipeline from the device, then slide the locking plate 14 so that the locking plate 14 is no longer in contact with the first locking block 25 and the second locking block 33, and then take out the installation shell body 21 and the sealing cover body 31 from the supporting leg 12. The diameter of the groove of the containing shell 13 is greater than the diameter of the oil collection tank 57, so that the oil collection tank 57 and the liquid discharge pipe 58 can pass through the groove of the containing shell 13. Then the worker pulls out the sealing cover body 31 from the front side of the installation shell body 21, and then takes out the filter plate 42, the sponge block 53 and the activated carbon plate 62. The filter plate 42, the sponge block 53 and the activated carbon plate 62 can be cleaned or replaced, and the installation shell body 21 and the sealing cover body 31 can be cleaned. After cleaning, the filter plate 42, the sponge block 53 and the activated carbon plate 62 can be reinstalled, the installation shell body 21 can be placed in front of the sealing cover body 31, the installation shell body 21 and the sealing cover body 31 can be placed in the containing shell 13, and the installation shell body 21 cannot move forward and backward relative to the sealing cover body 31. The sliding locking plate 14 is in contact with the first locking block 25 and the second locking block 33 again, and the installation shell body 21 and the sealing cover body 31 cannot move up and down through the locking plate 14. The installation shell body 21 and the sealing cover body 31 are fixed and form a sealed space. The containing shell 13 can be supported by the supporting leg 12, so that the containing shell 13 has a certain distance from the fixed plate 11. Therefore, the oil collection tank 57 has a storage space. The device can be used normally after installation.The installation shell body 21 and the sealing cover body 31 of the device can be placed in the containing shell 13 and locked by the first locking block 25 and the second locking block 33 through the locking plate 14, and the containing shell 13 is fixed through the fixing plate 11 and the supporting leg 12, so that the installation shell body 21 and the sealing cover body 31 can be quickly disassembled and assembled, and the filter plate 42, the sponge block 53 and the activated carbon plate 62 are limited through the first limiting frame 41, the second limiting frame 51 and the third limiting frame 61 respectively, so that the filter plate 42, the sponge block 53 and the activated carbon plate 62 can be quickly disassembled and replaced, and the device can be simply and quickly disassembled and assembled, and the device has high cleaning and maintenance efficiency.

[0035] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An oil mist separator comprising a locking seat assembly (1), a mounting housing assembly (2) and a closure cap assembly (3), characterized in that: The upper side of the locking seat assembly (1) is provided with the installation shell assembly (2), the front side of the installation shell assembly (2) is provided with the sealing cover assembly (3), the inside of the sealing cover assembly (3) is provided with the first filter assembly (4) on the left side, the inside of the sealing cover assembly (3) is provided with the second filter assembly (5) in the middle, the inside of the sealing cover assembly (3) is provided with the third filter assembly (6) on the right side; The locking seat assembly (1) comprises a fixed plate (11) and a supporting leg (12), the upper side of the fixed plate (11) is fixedly connected with four supporting legs (12), the upper side of the supporting leg (12) is fixedly connected with the containing shell (13), the front and rear sides of the containing shell (13) are both slidably connected with two locking plates (14), the installation shell assembly (2) comprises an installation shell body (21) and an air inlet pipe (22), the air inlet of the installation shell body (21) is fixedly connected with the air inlet pipe (22), the air outlet of the installation shell body (21) is fixedly connected with the air outlet pipe (23), the oil discharge port of the installation shell body (21) is fixedly connected with the anti-disengagement frame (24), the rear side of the installation shell body (21) is fixedly connected with the first locking block (25), the sealing cover assembly (3) comprises a sealing cover body (31) and a positioning protrusion (32), the second sealing rubber frame of the sealing cover body (31) is attached to the first sealing rubber frame of the installation shell body (21), the rear side of the sealing cover body (31) is fixedly connected with two positioning protrusions (32), the back side of the two positioning protrusions (32) is attached to the installation shell body (21), and the front side of the sealing cover body (31) is fixedly connected with the second locking block (33).

2. An oil mist separator according to claim 1, characterized in that The first filter assembly (4) comprises a first limiting frame (41) and a filter plate (42), the inside of the installation shell body (21) is fixedly connected with two first limiting frames (41) on the left side, and the filter plate (42) is arranged between the two first limiting frames (41); the second filter assembly (5) comprises a second limiting frame (51) and a splash-proof shell (52), the inside of the installation shell body (21) is fixedly connected with two second limiting frames (51) at the middle position, the back sides of the two second limiting frames (51) are fixedly connected with splash-proof shells (52), a sponge block (53) is arranged between the two second limiting frames (51), the upper side of the installation shell body (21) is fixedly connected with a fixed block (54), the front and back sides of the fixed block (54) are fixedly connected with multi-stage electric telescopic rods (55), the lower side of the multi-stage electric telescopic rod (55) is fixedly connected with a sliding plate (56), the lower side of the sliding plate (56) is attached to the sponge block (53), the lower side of the installation shell body (21) is fixedly connected with an oil collecting bin (57), the front side of the oil collecting bin (57) is fixedly connected with a liquid discharge pipe (58), the third filter assembly (6) comprises a third limiting frame (61) and an activated carbon plate (62), and the inside of the installation shell body (21) is fixedly connected with two third limiting frames (61) on the right side, and the activated carbon plate (62) is arranged between the two third limiting frames (61).

3. An oil mist separator according to claim 1, characterized in that: A plurality of bolt connection holes are arranged on the fixed plate (11), the upper side of the containing shell (13) is provided with two front and back symmetrically distributed rectangular limiting grooves, the front side of the installation shell body (21) is provided with a first sealing rubber frame, and the rear side of the sealing cover body (31) is provided with a second sealing rubber frame.

4. An oil mist separator according to claim 1, characterized in that: The first locking block (25) is located in one of the limiting grooves of the containing shell (13), and the two locking plates (14) located on the rear side are attached to the first locking block (25), and the second locking block (33) is located in the other limiting groove of the containing shell (13), and the two locking plates (14) located on the front side are attached to the second locking block (33).

5. An oil mist separator according to claim 2, characterized in that: The front and back sides of the containing shell (13) are provided with sliding grooves, and the sides close to the containing shell (13) of the locking plates (14) are provided with sliding protrusions, the lower side of the containing shell (13) is provided with a circular groove, and the diameter of the groove of the containing shell (13) is greater than the diameter of the oil collecting bin (57).

6. An oil mist separator according to claim 2, characterized in that: The left side of the installation shell body (21) is provided with an air inlet, the right side of the installation shell body (21) is provided with an air outlet, the lower side of the installation shell body (21) is provided with an oil outlet, the upper side of the oil collecting bin (57) is provided with an oil inlet, the oil inlet of the oil collecting bin (57) is aligned with the oil outlet of the installation shell body (21), and the liquid discharge pipe (58) is a flexible connection pipe.

7. An oil mist separator according to claim 2, characterized in that: The upper side of the installation shell body (21) is provided with two adjusting openings, the multi-stage electric telescopic rod (55) passes through the adjusting opening of the installation shell body (21), the sliding plate (56) is located in the interior of the installation shell body (21), the upper side of the sliding plate (56) is attached to the installation shell body (21), the left and right sides of the sliding plate (56) are respectively attached to the second limiting frame (51), the lower side of the sliding plate (56) is attached to the sponge block (53), and the lower side of the oil collecting bin (57) is attached to the fixed plate (11).

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