CN217289188U - Powder screening device for high-molecular powdery paint - Google Patents

Abstract

The utility model discloses a powder sieving device for high polymer powder coating, which belongs to the technical field of coating powder sieving, and comprises a damping component, a collecting component, a sieving component, a connecting component, a driving component, a dumping component and a bottom plate, wherein the damping component is arranged on the bottom plate, the collecting component is arranged on the top of the damping component, the sieving component is arranged at the upper end of the collecting component, the connecting component is obliquely arranged at the two ends of the sieving component and the collecting component, the driving component is arranged on the sieving component and the collecting component, the dumping component is arranged on the bottom plate and the collecting component, the utility model connects the collecting component and the sieving component through the connecting component, the sieving component is driven by the driving component to vibrate above the collecting component, under the buffer of the damping component, the coating in the collecting component is not easy to raise flying dust due to shaking, screening efficiency is fast, and the screening is stable, and just accomplish unloading of waste residue and coating after the screening finishes, the cost of using manpower sparingly.

Description

Powder screening device for high-molecular powdery paint

Technical Field

The utility model belongs to the technical field of the coating sieve powder technique and specifically relates to a sieve powder device for polymer powder coating is related to.

Background

Powder coating refers to a new solvent-free 100% solids powder coating. It is present in the state of fine powder, which is completely different from the conventional coating. The powder coating is a novel coating replacing paint, the main component is resin, the surface spraying effect of the powder coating is better than that of the paint, and the powder coating has the characteristics of no solvent, no pollution, recoverability, environmental protection, energy and resource saving, labor intensity reduction, high mechanical strength of coating and the like. The largest growing field of the powder coating market in China is as follows: the marine industry and the pipeline industry. There is a problem that impact resistance and moisture absorption are to be improved and enhanced, and researchers have focused on modification with various bases. The pipeline anticorrosion epoxy powder coating produced in China has certain gap in the aspects of storage stability and coating application property compared with foreign high-quality products.

When the powdery paint of production polymer, need sieve the powder operation to the coating raw materials, current powder coating generally adopts box screening structure, the inner structure is complicated, adopt stirring form sieve powder mostly, long-time the use can lead to inside a large amount of deposit coating raw materials, cause the waste, even some devices adopt the mode of shale shaker powder, also do not have fine operation of unloading to the good material sediment of screening and finished product coating, it is more troublesome, and at the sieve in-process that shakes, because the vibration range is big, the coating raw materials of screening net can splash out, not only pollute the production environment, and waste production resource.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sieve powder device for polymer powder coating to solve the problem that inner structure is complicated among the prior art, easy deposit, easily splashes.

The utility model provides a sieve powder device for polymer powdery paint, include damper, collect subassembly, screening subassembly, coupling assembling, drive assembly, empty subassembly and bottom plate, damper sets up on the bottom plate, collect the top that the subassembly set up at damper, screening subassembly sets up the upper end at collecting the subassembly, coupling assembling inclines to install on screening subassembly and collecting the both ends of subassembly, drive assembly installs on screening subassembly and collection subassembly, empty the unit mount on bottom plate and collection subassembly.

Preferably, damper includes that the shock attenuation holds in the palm, six damping spring, six shock attenuation poles and six shock attenuation section of thick bamboo, six the shock attenuation section of thick bamboo is the one end that the rectangular distribution set up on the bottom plate, six the shock attenuation pole sets up respectively in the shock attenuation section of thick bamboo that corresponds, the shock attenuation holds in the palm the top that sets up at six shock attenuation poles, six damping spring overlaps respectively and establishes outside corresponding shock attenuation section of thick bamboo and shock attenuation pole, six the bottom that the shock attenuation held in the palm and six springs were all connected to damping spring's top connects the bottom plate respectively.

Preferably, the collecting assembly comprises a collecting box, an installation block, an discharging gate and two guide blocks, the collecting box is arranged at the top of the middle of the damping support, the installation block is arranged at one end of the collecting box close to the middle of the bottom plate, one end of the collecting box facing outwards is provided with a discharging port, and the two guide blocks are arranged at two ends of the discharging port in the collecting box, the discharging gate is vertically arranged in the outer end of the collecting box, and the outer end of the discharging gate is movably matched with the outer end of the collecting box.

Preferably, the screening subassembly is including screening net, screening lid, magazine, deslagging gate, slag removal piece and two slag guide pieces, the screening net sets up the upper end at the collection box, the cross-section of removing the slag piece is triangle-shaped, it sets up the one side that is located the installation piece in the screening net to remove the slag piece, the screening net is provided with the scum outlet towards outside one end, two lead the slag piece setting in the screening net and two lead the slag piece setting at the both ends of scum outlet, deslagging gate vertical setting just removes slag gate and screening net outside end clearance fit in screening net outside end, the screening lid sets up the top at the screening net, the magazine sets up and communicates in screening lid top intermediate position and magazine and screening net.

Preferably, coupling assembling includes four spring leafs, four last fixed blocks, four lower fixed blocks and eight set screws, four go up the fixed block and incline the symmetry respectively and install the both sides at the screening net, four down the fixed block inclines the symmetry respectively and installs the both sides of collecting the box, four down the upper end of spring leaf is installed respectively on four last fixed blocks, four through four set screws the lower extreme of spring leaf is installed respectively on four lower fixed blocks that correspond through four set screws.

Preferably, the driving assembly comprises a driving motor, a driving motor frame, a driving spindle, a driving disk, a first driving rod, a mounting plate, a second driving rod, a driving connecting rod and two limiting rings, the driving motor frame is fixed on the side surface of the mounting block, the driving spindle horizontally penetrates through the mounting block and drives the spindle and the mounting block to be matched in rotation, the two limiting rings are arranged at the two ends of the mounting block, the two limiting rings are fixedly sleeved on the driving spindle, the driving motor is arranged on the driving motor frame, the spindle of the driving motor is connected with one end of the driving spindle, the driving disk is arranged at the other end of the driving spindle, the first driving rod is vertically arranged on the driving disk, the mounting plate is arranged at the bottom of one side, away from the driving motor, of the screening net, the second driving rod is vertically arranged on the mounting plate, and the two ends of the driving connecting rod are respectively sleeved on the first driving rod and the second driving rod, the driving connecting rod is in running fit with the first driving rod and the second driving rod.

Preferably, empty the subassembly including empting cylinder, two axle and two curb plates of empting, it is articulated in the middle of the top of the bottom of empting the cylinder and the one end of bottom plate, it is articulated in the middle of the telescopic shaft of empting the cylinder and the lateral surface of installation piece, two it installs respectively in the shock attenuation support and keeps away from the both sides of installation piece one end to empty the curb plate, the shock attenuation is held in the palm and is located two and emptys and be provided with between the curb plate and empty the opening, it is connected with two curb plate rotations of empting through two axles of empting to collect the box.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the damping component that this device was equipped with through the cooperation of damping spring, shock attenuation pole and damper cylinder, can make the shock attenuation hold in the palm and can also keep certain stability at the drive assembly during operation, prevents that the good coating of screening from splashing.

(2) The subassembly of empting that this device was equipped with promotes one side of installation piece through empting the cylinder to make the collection box and the screening net on installation piece limit use the axle of empting to incline curb plate one side rotation slope as the axis, open ejection of compact floodgate or remove the dregs floodgate, can conveniently empty out coating powder or material sediment, convenient and fast has saved production time, has improved production efficiency.

(3) The screening subassembly that this device was equipped with sieves coating through screening net, simultaneously under the effect of screening lid, has avoided because the screening in-process, and the vibration range is too big, and the coating that arouses splashes, also conveniently throws the material simultaneously and gets rid of the remaining waste residue after the screening.

(4) The drive assembly that this device was equipped with drives drive spindle and driving-disc rotation through driving motor, and is corresponding, and first actuating lever on the driving-disc can drive the one end of drive connecting rod and be circular motion, and the other end of drive connecting rod can drive the second actuating lever simultaneously and be reciprocating motion, and second actuating lever drive mounting panel drives the screening net, and reciprocating motion screening, the drive is simple high-efficient, and the linkage is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a cross-sectional view taken along line a-a of fig. 3.

The reference numerals are that a damping component 1, a collecting component 2, a screening component 3, a connecting component 4, a driving component 5, a dumping component 6, a bottom plate 7, a damping support 10, a damping spring 11, a damping rod 12, a damping cylinder 13, a collecting box 20, a mounting block 21, a discharging gate 22, a material guide block 23, a screening net 30, a screening cover 31, a feeding hopper 32, a deslagging gate 33, a deslagging block 34, a deslagging block 35, a spring leaf 40, an upper fixing block 41, a lower fixing block 42, a fixing screw 43, a driving motor 50, a driving motor frame 51, a driving main shaft 52, a driving disc 53, a first driving rod 54, a mounting plate 55, a second driving rod 56, a driving connecting rod 57, a limiting ring 58, a dumping cylinder 60, a dumping shaft 61 and a dumping side plate 62 are arranged on the same plane.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the embodiment of the present invention provides a powder sieving device for high molecular powder coating, including a damping component 1, a collecting component 2, a sieving component 3, a connecting component 4, a driving component 5, a dumping component 6 and a bottom plate 7, wherein the damping component 1 is disposed on the bottom plate 7, the collecting component 2 is disposed on the top of the damping component 1, the sieving component 3 is disposed on the upper end of the collecting component 2, the connecting component 4 is obliquely mounted on both ends of the sieving component 3 and the collecting component 2, the driving component 5 is mounted on the sieving component 3 and the collecting component 2, the dumping component 6 is mounted on the bottom plate 7 and the collecting component 2, the collecting component 2 and the sieving component 3 are connected through the connecting component 4, the driving component 5 is used to drive the sieving component 3 to sieve above the collecting component 2, and the powder is buffered by the damping component 1, make the interior coating of collection subassembly 2 be difficult to because of the shake raise flying dust, screening efficiency is fast, and the screening is stable to can conveniently accomplish waste residue and the off-the-shelf unloading of coating after the screening finishes, the cost of using manpower sparingly.

Concretely, damper 1 includes that the shock attenuation holds in the palm 10, six damping spring 11, six shock attenuation pole 12 and six shock attenuation section of thick bamboo 13, six shock attenuation section of thick bamboo 13 are the one end that the rectangular distribution set up on bottom plate 7, six shock attenuation pole 12 set up respectively in the shock attenuation section of thick bamboo 13 that corresponds, the shock attenuation holds in the palm 10 shock attenuation and holds in the palm 10 top that sets up at six shock attenuation pole 12, six damping spring 11 overlap respectively outside corresponding shock attenuation section of thick bamboo 13 and shock attenuation pole 12, the bottom that the bottom of shock attenuation support 10 and six springs were all connected to six damping spring 11's top connects bottom plate 7 respectively, through damping spring 11, the cooperation of shock attenuation pole 12 and shock attenuation section of thick bamboo 13, can make shock attenuation hold in the palm 10 and can also keep certain stability at drive assembly 5 during operation, prevent that the coating that the screening is good from splashing.

Specifically, collect subassembly 2 including collecting box 20, installation piece 21, ejection of compact floodgate 22 and two guide block 23, collect box 20 and set up the top in the middle of shock attenuation support 10, installation piece 21 sets up the one end in the middle of collecting box 20 and being close to bottom plate 7, the outside one end of collecting box 20 is provided with the discharge gate, two guide block 23 set up in collecting box 20 and two guide block 23 set up the both ends at the discharge gate, the vertical setting of ejection of compact floodgate 22 is in collecting box 20 outside end and ejection of compact floodgate 22 and collecting box 20 outside end clearance fit, collect the good coating of screening through collecting box 20, conveniently sieve and concentrate to empty to coating after finishing.

Specifically, the screening component 3 comprises a screening net 30, a screening cover 31, a feeding hopper 32, a deslagging gate 33, a deslagging block 34 and two deslagging blocks 35, the screening net 30 is arranged at the upper end of the collecting box 20, the section of the deslagging block 34 is triangular, the deslagging block 34 is arranged in the screening net 30 and is positioned at one side of the mounting block 21, one end, facing the outer side, of the screening net 30 is provided with a deslagging port, the two deslagging blocks 35 are arranged in the screening net 30 and are arranged at two ends of the deslagging port, the deslagging gate 33 is vertically arranged in the outer end of the screening net 30, the deslagging gate 33 is movably matched with the outer end of the screening net 30, the screening cover 31 is arranged at the top of the screening net 30, the feeding hopper 32 is arranged at the middle position of the top of the screening cover 31 and is communicated with the screening net 30, the coating is screened through the screening net 30, and under the action of the screening cover 31, the screening process of screening is avoided, the vibration amplitude is too large, so that the paint splashes, and the feeding and the removal of the residual waste residues after screening are convenient.

Specifically, the connecting assembly 4 includes four spring pieces 40, four upper fixing blocks 41, four lower fixing blocks 42 and eight fixing screws 43, the four upper fixing blocks 41 are respectively installed on two sides of the sieving net 30 in an inclined symmetrical manner, the four lower fixing blocks 42 are respectively installed on two sides of the collecting box 20 in an inclined symmetrical manner, the upper ends of the four spring pieces 40 are respectively installed on the four upper fixing blocks 41 through the four fixing screws 43, the lower ends of the four spring pieces 40 are respectively installed on the corresponding four lower fixing blocks 42 through the four fixing screws 43, the sieving net 30 and the collecting box 20 can be relatively fixed through the four spring pieces 40, and the spring pieces 40 have elasticity, under the action of the driving assembly 5, the sieving net 30 can swing back and forth above the collecting box 20, and sieving is completed.

Specifically, the driving assembly 5 includes a driving motor 50, a driving motor frame 51, a driving spindle 52, a driving disc 53, a first driving rod 54, a mounting plate 55, a second driving rod 56, a driving connecting rod 57 and two limiting rings 58, the driving motor frame 51 is fixed on the side surface of the mounting block 21, the driving spindle 52 horizontally penetrates through the mounting block 21 and the driving spindle 52 and the mounting block 21 are in running fit, the two limiting rings 58 are disposed at two ends of the mounting block 21 and the two limiting rings 58 are both fixedly sleeved on the driving spindle 52, the driving motor 50 is mounted on the driving motor frame 51 and the spindle of the driving motor 50 is connected with one end of the driving spindle 52, the driving disc 53 is mounted on the other end of the driving spindle 52, the first driving rod 54 is vertically mounted on the driving disc 53, the mounting plate 55 is disposed at the bottom of the sieving net 30 far away from the driving motor 50, the second driving rod 56 is vertically disposed on the mounting plate 55, the both ends of drive connecting rod 57 cup joint respectively on first actuating lever 54 and second actuating lever 56, drive connecting rod 57 and first actuating lever 54 and the equal normal running fit of second actuating lever 56, it is rotatory to drive main shaft 52 and driving-disc 53 through driving motor 50, it is corresponding, first actuating lever 54 on the driving-disc 53 can drive the one end of drive connecting rod 57 and be circular motion, the other end of drive connecting rod 57 can drive second actuating lever 56 and be reciprocating motion simultaneously, second actuating lever 56 drives mounting panel 55 and drives screening net 30, reciprocating motion screening, the drive is simple high-efficient, the linkage is good.

Specifically, empty subassembly 6 including empting cylinder 60, two are emptyd axle 61 and two and are emptyd curb plate 62, it is articulated in the middle of the top of the bottom of empting cylinder 60 and the one end of bottom plate 7, it is articulated in the middle of the telescopic shaft of empting cylinder 60 and the lateral surface of installing block 21, two are emptyd curb plate 62 and are installed respectively in shock attenuation support 10 and keep away from the both sides of installing block 21 one end, shock attenuation support 10 is located two and is emptyd and be provided with between the curb plate 62 and empty the opening, it rotates with two and is connected to empty curb plate 62 through two axles that empty to collect box 20, can promote one side of installing block 21 through empting cylinder 60, thereby make collection box 20 and the screening net 30 on installing block 21 limit incline to the opposite side, open ejection of compact floodgate 22 or deslagging floodgate 33, can conveniently empty out coating powder or material sediment, and convenient and fast, the production time is saved, and production efficiency is improved.

The utility model discloses a theory of operation: when the nano sound-absorbing coating needs to be screened, firstly, coating raw materials are put into the screening net 30 from the feeding hopper 32, then the driving motor 50 is started to drive the driving main shaft 52 and the driving main shaft 52 to rotate, the driving main shaft 52 drives the driving disc 53 and the first driving rod 54 on the driving disc 53 to rotate, correspondingly, the first driving rod 54 on the driving disc 53 drives one end of the driving connecting rod 57 to do circular motion, meanwhile, the other end of the driving connecting rod 57 drives the second driving rod 56 to do reciprocating motion, the second driving rod 56 drives the mounting plate 55 to drive the screening net 30, after the screening is finished, the dumping air cylinder 60 is started, one side of the mounting block 21 is pushed through the dumping air cylinder 60, so that the collecting box 20 and the screening net 30 at the side of the mounting block 21 are inclined towards one side of the dumping side plate 62 by taking the dumping shaft 61 as an axis, then the discharging gate 22 or the deslagging gate 33 is opened, can empty out coating powder or material sediment, empty the back that finishes, close ejection of compact floodgate 22 or remove dregs floodgate 33, start and empty cylinder 60 and withdraw the telescopic shaft to drive collection box 20 and get back to in the shock attenuation holds in the palm 10, accomplish the sieve powder to polymer powder coating.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a sieve powder device for powdery coating of polymer which characterized in that: including shock-absorbing component (1), collection subassembly (2), screen assembly (3), coupling assembling (4), drive assembly (5), empty subassembly (6) and bottom plate (7), shock-absorbing component (1) sets up on bottom plate (7), collect subassembly (2) and set up the top at shock-absorbing component (1), screen assembly (3) set up the upper end at collection subassembly (2), coupling assembling (4) slope is installed on screen assembly (3) and the both ends of collecting subassembly (2), drive assembly (5) are installed on screen assembly (3) and collection subassembly (2), empty subassembly (6) and install on bottom plate (7) and collection subassembly (2).

2. The powder sieving device for high molecular powder coating according to claim 1, characterized in that: damping component (1) is including shock attenuation support (10), six damping spring (11), six shock attenuation pole (12) and six shock attenuation section of thick bamboo (13), six shock attenuation section of thick bamboo (13) are the one end that the rectangular distribution set up on bottom plate (7), six shock attenuation pole (12) set up respectively in the shock attenuation section of thick bamboo (13) that corresponds, shock attenuation support (10) set up at the top of six shock attenuation pole (12), six shock attenuation spring (11) are established respectively and are established outside corresponding shock attenuation section of thick bamboo (13) and shock attenuation pole (12), six bottom plate (7) are connected respectively to the bottom that the bottom of shock attenuation support (10) and the bottom of six springs are all connected at the top of damping spring (11).

3. The powder sieving device for high molecular powder coating according to claim 2, characterized in that: collect subassembly (2) including collecting box (20), installation piece (21), ejection of compact floodgate (22) and two guide block (23), collect box (20) and set up the top in the middle of shock attenuation support (10), installation piece (21) set up the one end in the middle of collecting box (20) and being close to bottom plate (7), the outside one end of collecting box (20) is provided with the discharge gate, two guide block (23) set up in collecting box (20) and two guide block (23) set up the both ends at the discharge gate, ejection of compact floodgate (22) vertical setting is in collecting box (20) outside end and ejection of compact floodgate (22) and collection box (20) outside end clearance fit.

4. The powder screening device for high molecular powder coating of claim 3, wherein: the screening component (3) comprises a screening net (30), a screening cover (31), a feeding hopper (32), a deslagging gate (33), a deslagging block (34) and two deslagging blocks (35), the screening net (30) is arranged at the upper end of the collecting box (20), the section of the deslagging block (34) is triangular, the deslagging block (34) is arranged on one side of the mounting block (21) in the screening net (30), a slag discharge port is arranged at one end of the screening net (30) facing the outer side, two slag guide blocks (35) are arranged in the screening net (30) and two slag guide blocks (35) are arranged at two ends of the slag discharge port, the deslagging gate (33) is vertically arranged in the outer side end of the screening net (30), the deslagging gate (33) is movably matched with the outer side end of the screening net (30), the screening cover (31) is arranged at the top of the screening net (30), the feeding hopper (32) is arranged in the middle of the top of the screening cover (31), and the feeding hopper (32) is communicated with the inside of the screening net (30).

5. The powder sieving device for high molecular powder coating according to claim 4, wherein: coupling assembling (4) are including four spring leaf (40), four go up fixed block (41), four lower fixed block (42) and eight set screw (43), four go up fixed block (41) and incline the symmetry respectively and install the both sides at screening net (30), four fixed block (42) incline the symmetry respectively and install the both sides of collecting box (20) down, four the upper end of spring leaf (40) is installed respectively on four last fixed block (41) through four set screw (43), four the lower extreme of spring leaf (40) is installed respectively on four lower fixed block (42) that correspond through four set screw (43).

6. The powder sieving device for high molecular powder coating according to claim 4, wherein: the driving assembly (5) comprises a driving motor (50), a driving motor frame (51), a driving spindle (52), a driving disc (53), a first driving rod (54), a mounting plate (55), a second driving rod (56), a driving connecting rod (57) and two limiting rings (58), wherein the driving motor frame (51) is fixed on the side surface of the mounting block (21), the driving spindle (52) horizontally penetrates through the mounting block (21) and the driving spindle (52) and the mounting block (21) to be matched in a rotating manner, the two limiting rings (58) are arranged at two ends of the mounting block (21) and the two limiting rings (58) are fixedly sleeved on the driving spindle (52), the driving motor (50) is arranged on the driving motor frame (51) and the spindle of the driving motor (50) is connected with one end of the driving spindle (52), the driving disc (53) is arranged at the other end of the driving spindle (52), first actuating lever (54) is installed perpendicularly on driving-disc (53), mounting panel (55) set up the bottom in one side of screening net (30), second actuating lever (56) set up perpendicularly on mounting panel (55), the both ends of drive connecting rod (57) are cup jointed respectively on first actuating lever (54) and second actuating lever (56), drive connecting rod (57) and first actuating lever (54) and second actuating lever (56) equal normal running fit.

7. A powder screening device for high molecular powder paint according to claim 3, characterized in that: toppling over subassembly (6) including toppling over cylinder (60), two axle (61) of toppling over and two curb plate (62) of toppling over, it is articulated in the middle of the top of the bottom of toppling over cylinder (60) and the one end of bottom plate (7), it is articulated in the middle of the telescopic shaft of toppling over cylinder (60) and the lateral surface of installation piece (21), two it installs respectively in shock attenuation support (10) and keeps away from the both sides of installation piece (21) one end to topple over curb plate (62), shock attenuation support (10) are located two and are toppled over and are provided with between curb plate (62) and topple over the opening, collect box (20) and topple over axle (61) and two through two and topple over curb plate (62) and rotate and be connected.

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