CN212881686U - Dust fall mechanism for discharge port of movable weighing trolley - Google Patents

Abstract

The utility model discloses a dolly discharge gate dust fall mechanism of portable weighing, including water tank and protective housing, the upper portion of water tank is provided with first fan, second fan and nine through-holes of organizing. Has the advantages that: the utility model discloses a first dust filter screen and second dust filter screen, when the material dust that will get into the water tank when needs are clear away, material dust and water are through first dust filter screen and second dust filter screen, press the second sawtooth rack, when first dust filter screen reachs and takes out the net groove, take first dust filter screen out, the material dust can pass through the second dust filter screen with water, do not influence and filter the material dust, can clean the first dust filter screen of taking out this moment, when clean finishing, remove first dust filter screen and do the motion of resetting, the second dust filter screen is clean can with the operation, first dust filter screen and second dust filter screen through setting up, can clean the material dust that gets into the water tank, prevent to pile up too much, the condition that leads to drain pipe jam takes place.

Description

Dust fall mechanism for discharge port of movable weighing trolley

Technical Field

The utility model relates to a dust fall mechanism technical field particularly, relates to portable dolly discharge gate dust fall mechanism of weighing.

Background

The movable weighing trolley discharge port dust settling mechanism is a device for filtering and removing dust from material dust, along with the acceleration of industrialization and urbanization processes, the atmospheric pollution in China is increasingly serious, the emission standard of atmospheric pollutants is increasingly strict, the movable weighing trolley discharge port dust settling mechanism is widely applied, and the movable weighing trolley discharge port dust settling mechanism has the advantages of being simple in operation, high in dust settling efficiency, stable in equipment use and the like.

Traditional portable dolly discharge gate dust fall mechanism of weighing, it is inside to utilize the water smoke to wash the material dust to the water tank mostly, because the material dust is tiny granule, it can block up the drain pipe to excessively pile up, influence the work progress of dust fall promptly, bring inconvenience for the clearance effect of the portable dolly discharge gate dust fall mechanism of weighing in later stage again, secondly, portable dolly discharge gate dust fall mechanism of weighing's service environment is complicated various, when removing dust to lighter material, the fan chance is with the inside of lighter material inspiration protective housing, this in-process material collides with centrifugal fan blade easily, long-time use can reduce the life of fan, it is inconvenient to bring for the use of portable dolly discharge gate dust fall mechanism of weighing.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a portable dolly discharge gate dust fall mechanism of weighing possesses the clean material dust that gets into the water tank inside of being convenient for, prevents the advantage of material and centrifugal fan blade contact, and then solves the problem among the above-mentioned background art.

(II) technical scheme

For the clean advantage that gets into the inside material dust of water tank, prevent material and centrifugal fan blade contact of being convenient for of realizing the aforesaid, the utility model discloses a concrete technical scheme as follows:

a dust fall mechanism at a discharge port of a movable weighing trolley comprises a water tank and a protective shell, wherein a first fan, a second fan and nine groups of through holes are arranged on the upper portion of the water tank, a first motor is installed on one side of the first fan, a first rotating shaft is installed at the output end of the first motor in a clamped mode, a first centrifugal fan blade is fixedly installed on the side wall of the first rotating shaft, a second motor is installed on one side of the second fan, a second rotating shaft is installed at the output end of the second motor in a clamped mode, a second centrifugal fan blade is fixedly installed on the side wall of the second rotating shaft, two groups of water retaining rings, stainless steel filter screens and two groups of cooling water curtains are installed inside the protective shell, water guide pipes are fixedly installed on the upper portions of the cooling water curtains, a water inlet pipe is installed at one end of each water guide pipe, a ball valve is, the lateral wall of water tank is provided with the drain pipe, leads to the groove, takes out wire stitcher and limiting plate, the inside slidable mounting of water tank has first dust filter screen and second dust filter screen, the opening part of protective housing is provided with first material filter screen and second material filter screen.

Further, both sides of the first dust filter screen are fixedly provided with first T-shaped sliding plates, the outer parts of two groups of the first T-shaped sliding plates are sleeved with first sliding rails, the inner parts of two groups of the first sliding rails are provided with first T-shaped sliding grooves, two groups of the first T-shaped sliding plates are respectively positioned in two groups of the first T-shaped sliding grooves, both sides of the second dust filter screen are fixedly provided with second T-shaped sliding plates, the outer parts of two groups of the second T-shaped sliding plates are sleeved with second sliding rails, the inner parts of two groups of the second sliding rails are provided with second T-shaped sliding grooves, two groups of the second T-shaped sliding plates are respectively positioned in two groups of the second T-shaped sliding grooves, the upper parts of the two groups of the first sliding rails are fixedly provided with connecting plates, the upper parts of the connecting plates are fixedly provided with first sawtooth strips, and the side walls of the first sawtooth strips are engaged with gears, the inside rotation of gear installs the axis of rotation, and the both ends of axis of rotation are located the preceding, inside the rear end face in logical groove respectively, the opposite side meshing of gear installs the second sawtooth rack.

Furthermore, the two groups of first sliding rails and the two groups of second sliding rails are fixedly connected in a welding mode.

Further, the equal fixed cup joint of the outside lateral wall of first material filter screen and second material filter screen installs filter plate, first fan one side fixed mounting has two sets of expanding spring, and two sets of expanding spring's one end all with a set of filter plate's fixed connection, it is a set of filter plate's lateral wall fixed mounting has the fixed plate, the lateral wall of protective housing is provided with the slide rail groove, the fixed plate runs through the slide rail groove.

Furthermore, the vertical section length of the two groups of filter screen plates is slightly smaller than the vertical section length of the inside of the protective shell, and the one group of filter screen plates on one side of the second fan are fixedly connected with the protective shell.

Furthermore, the stainless steel filter screen and the two groups of cooling water curtains are positioned between the two groups of water retaining rings.

Further, one end side wall of the drain pipe is in contact with the inner bottom surface of the water tank.

Furthermore, the first fan and the second fan are both located on the same horizontal line.

(III) advantageous effects

Compared with the prior art, the utility model provides a dolly discharge gate dust fall mechanism of portable weighing possesses following beneficial effect:

(1) the utility model adopts the first dust filter screen and the second dust filter screen, when the material dust entering the water tank needs to be removed, the material dust and water pass through the first dust filter screen and the second dust filter screen, the gear is meshed with the first sawtooth strip and the second sawtooth strip to press the second sawtooth strip, the first sawtooth strip, the connecting plate, the first dust filter screen and the second dust filter screen are driven to move upwards, when the first dust filter screen reaches the screen drawing groove, the first dust filter screen is drawn out, the material dust and water pass through the second dust filter screen, the material dust is not influenced, the first dust filter screen can be cleaned, when the cleaning is finished, the first dust filter screen is moved to reset, the second sawtooth strip is continuously pressed, when the second dust filter screen reaches the screen drawing groove, the second dust filter screen is drawn out, the second dust filter screen can be cleaned, when the cleanness finishes, remove the second dust filter screen and do the motion that resets, loosen the second sawtooth rack, the connecting plate, first dust filter screen and second dust filter screen receive the action of gravity, can resume the normal position, the limiting plate can prevent gear and first sawtooth rack and the separation of second sawtooth rack, through the first dust filter screen and the second dust filter screen that set up, can be under the condition that does not influence the portable dolly discharge gate dust fall mechanism work of weighing, clean the material dust that gets into the water tank, prevent to pile up too much, the condition that leads to the drain pipe jam takes place, it brings the facility to weigh the cleaning work of dolly discharge gate dust fall mechanism for the movable type.

(2) The utility model adopts the first material filter screen and the second material filter screen, when the protective shell is arranged at one end of the first material filter screen and is connected for use, the first fan and the second fan can adsorb light materials on the side wall of the first material filter screen, at the moment, the fixed plate is moved, the two groups of expansion springs are in a compression state, when one side of the fixed plate is contacted with one side inside the slide rail groove, the fixed plate is loosened, the two groups of expansion springs are under the action of self elasticity to support one group of filter screen plates and the first material filter screen to do reset motion, when the other side of the fixed plate is contacted with the other side inside the slide rail groove, one group of filter screen plates and the first material filter screen can shake to pop out the light materials adsorbed on the side wall of the first material filter screen and are separated from the first material filter screen, and the materials can be prevented from being contacted with the first centrifugal fan blade through the arranged first, the dust falling mechanism brings convenience for the use of the discharge port of the movable weighing trolley.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only 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 structural view of a dust fall mechanism at a discharge port of a mobile weighing trolley provided by the utility model;

fig. 2 is a schematic structural view of a first dust filter of the present invention;

FIG. 3 is an enlarged view of A of FIG. 1 according to the present invention;

fig. 4 is an enlarged view of B in fig. 1 according to the present invention.

In the figure:

1. a water tank; 2. a first fan; 3. a second fan; 4. a first motor; 5. a first rotating shaft; 6. a first centrifugal fan blade; 7. a second motor; 8. a second rotating shaft; 9. a second centrifugal fan blade; 10. a water retaining ring; 11. a stainless steel filter screen; 12. a cooling water curtain; 13. a protective shell; 14. a water conduit; 15. a water inlet pipe; 16. a ball valve; 17. a through hole; 18. a drain pipe; 19. a through groove; 20. a mesh drawing groove; 21. a rotating shaft; 22. a gear; 23. a first sawtooth strip; 24. a second sawtooth strip; 25. a limiting plate; 26. a connecting plate; 27. a first slide rail; 28. a first T-shaped chute; 29. a first T-shaped slide plate; 30. a first dust screen; 31. a second slide rail; 32. a second T-shaped chute; 33. a second T-shaped slide plate; 34. a second dust screen; 35. a filter screen plate; 36. a first material screen; 37. a tension spring; 38. a slide rail groove; 39. a fixing plate; 40. and a second material filter screen.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides portable dolly discharge gate dust fall mechanism of weighing.

Referring to the drawings and the detailed description, as shown in fig. 1-4, a mobile weighing trolley discharge port dust fall mechanism according to an embodiment of the present invention includes a water tank 1 and a protective casing 13, a first fan 2, a second fan 3 and nine sets of through holes 17 are disposed on an upper portion of the water tank 1, a first motor 4 is mounted on one side of the first fan 2, a first rotating shaft 5 is mounted on an output end of the first motor 4 in a clamping manner, a first centrifugal fan blade 6 is fixedly mounted on a side wall of the first rotating shaft 5, a second motor 7 is mounted on one side of the second fan 3, a second rotating shaft 8 is mounted on an output end of the second motor 7 in a clamping manner, a second centrifugal fan blade 9 is fixedly mounted on a side wall of the second rotating shaft 8, two sets of water retaining rings 10, a stainless steel filter screen 11 and two sets of cooling water curtains 12 are mounted inside the protective casing 13, a water guide pipe 14 is fixedly mounted on upper portions of the, and inlet tube 15 is installed to the one end of aqueduct 14, and ball valve 16 is installed to the lateral wall of inlet tube 15, the upper portion of protective housing 13 is run through to the other end of aqueduct 14, the lateral wall of water tank 1 is provided with drain pipe 18, logical groove 19, take out the screen trap 20 and limiting plate 25, the inside slidable mounting of water tank 1 has first dust filter screen 30 and second dust filter screen 34, the opening part of protective housing 13 is provided with first material filter screen 36 and second material filter screen 40, first fan 2, first motor 4, first centrifugal fan leaf 6, second fan 3, second motor 7, second centrifugal fan leaf 9, two sets of manger plate rings 10, stainless steel filter screen 11 and two sets of cooling cascade 12 are current structure, do not do too much to describe here again.

In one embodiment, two sides of the first dust filter 30 are fixedly installed with first T-shaped sliding plates 29, two sets of first T-shaped sliding plates 29 are sleeved with first sliding rails 27, two sets of first sliding rails 27 are provided with first T-shaped sliding grooves 28 inside, two sets of first T-shaped sliding plates 29 are respectively located inside two sets of first T-shaped sliding grooves 28, two sides of the second dust filter 34 are fixedly installed with second T-shaped sliding plates 33, two sets of second T-shaped sliding plates 33 are sleeved with second sliding rails 31 outside, two sets of second sliding rails 31 are provided with second T-shaped sliding grooves 32 inside, two sets of second T-shaped sliding plates 33 are respectively located inside two sets of second T-shaped sliding grooves 32, two sets of first sliding rails 27 are fixedly installed with connecting plates 26 on upper portions, first sawtooth strips 23 are fixedly installed on upper portions of the connecting plates 26, and side walls of the first sawtooth strips 23 are engaged with gears 22, a rotating shaft 21 is rotatably installed inside the gear 22, two ends of the rotating shaft 21 are respectively located inside the front end face and the rear end face of the through groove 19, a second sawtooth strip 24 is installed on the other side of the gear 22 in a meshed manner, when material dust entering the water tank 1 needs to be removed, the material dust and water pass through the first dust filter screen 30 and the second dust filter screen 34, the gear 22 is meshed with the first sawtooth strip 23 and the second sawtooth strip 24 to be connected, the second sawtooth strip 24 is pressed to drive the first sawtooth strip 23, the connecting plate 26, the first dust filter screen 30 and the second dust filter screen 34 to move upwards, when the first dust filter screen 30 reaches the screen drawing groove 20, the first dust filter screen 30 is drawn out, the material dust and the water pass through the second dust filter screen 34, the material dust is not influenced, the drawn out first dust filter screen 30 can be cleaned at the moment, and when the cleaning is finished, the first dust filter screen 30 is moved to reset, the second saw tooth bar 24 is continuously pressed, and when the second dust filter 34 reaches the drawing groove 20, the second dust filter 34 is drawn out, at which time the drawn-out second dust filter 34 can be cleaned, when the cleaning is finished, the second dust filter screen 34 is moved to perform reset motion, the second sawtooth racks 24 are loosened, the connecting plate 26, the first dust filter screen 30 and the second dust filter screen 34 can be restored to the original position under the action of gravity, the limiting plate 25 can prevent the gear 22 from being separated from the first sawtooth racks 23 and the second sawtooth racks 24, through the arrangement of the first dust filter screen 30 and the second dust filter screen 34, under the condition that the working of the dust falling mechanism at the discharge hole of the movable weighing trolley is not influenced, clean the material dust that gets into water tank 1, prevent to pile up too much, lead to the condition emergence of drain pipe 18 jam, facilitate for the cleaning work of portable dolly discharge gate dust fall mechanism of weighing.

In one embodiment, the two sets of first sliding rails 27 and the two sets of second sliding rails 31 are fixedly connected by welding, which provides a possibility for the two sets of first sliding rails 27 and the two sets of second sliding rails 31 to move to the drawing slot 20.

In one embodiment, the filter screen plates 35 are fixedly sleeved on the outer side walls of the first material filter screen 36 and the second material filter screen 40, two sets of expansion springs 37 are fixedly installed on one side of the first fan 2, one ends of the two sets of expansion springs 37 are fixedly connected with one set of filter screen plates 35, a fixing plate 39 is fixedly installed on the side wall of one set of filter screen plates 35, a slide rail groove 38 is formed in the side wall of the protective shell 13, the fixing plate 39 penetrates through the slide rail groove 38, when the protective shell 13 is connected and used at one end of the first material filter screen 36, the first fan 2 and the second fan 3 can absorb lighter materials on the side wall of the first material filter screen 36, at the moment, the fixing plate 39 is moved, the two sets of expansion springs 37 are in a compressed state, when one side of the fixing plate 39 is in contact with the inner side of the slide rail groove 38, the fixing plate 39 is loosened, and the two sets of expansion springs 37 are under the action, when the other side of fixed plate 39 and the inside opposite side contact of slide rail groove 38, a set of filter screen board 35 and first material filter screen 36 can take place the shake, will adsorb the lighter material of first material filter screen 36 lateral wall and pop out, separate with first material filter screen 36, through first material filter screen 36 and the second material filter screen 40 that sets up, can prevent material and first centrifugal fan blade 6 contact, bring the facility for portable dolly discharge gate dust fall mechanism that weighs's use.

In one embodiment, the vertical cross-sectional lengths of the two sets of filter screen plates 35 are slightly smaller than the internal vertical cross-sectional length of the protective shell 13, and the one set of filter screen plates 35 on one side of the second fan 3 is fixedly connected with the protective shell 13, so that the situation that the first material filter screen 36 cannot move left and right due to the fact that the vertical cross-sectional lengths of the one set of filter screen plates 35 are too large is avoided.

In one embodiment, the stainless steel screen 11 and the two sets of cooling water curtains 12 are located between the two sets of water retaining rings 10, and the two sets of water retaining rings 10 prevent water generated by the two sets of cooling water curtains 12 from contacting the first fan 2 and the second fan 3.

In one embodiment, one end side wall of the drain pipe 18 is in contact with the inner bottom surface of the water tank 1, thereby preventing the water from being stored in the inner bottom surface of the water tank 1.

In one embodiment, the first fan 2 and the second fan 3 are both located on the same horizontal line, so that the reduction of the speed of adsorbing material dust caused by the dislocation of the first fan 2 and the second fan 3 is avoided.

The working principle is as follows:

when the movable weighing trolley discharge port dust fall mechanism connecting circuit is used, the ball valve 16 is opened, water in the water inlet pipe 15 enters the interior of the two groups of cooling water curtains 12 through the water guide pipe 14, the first fan 2 and the second fan 3 suck material dust into the interior of the protective shell 13, the water enters the interior of the water tank 1 through the two groups of water retaining rings 10, the stainless steel filter screen 11, the two groups of cooling water curtains 12 and the nine groups of through holes 17, when the material dust entering the water tank 1 needs to be removed, the material dust and the water pass through the first dust filter screen 30 and the second dust filter screen 34, are meshed and connected with the first sawtooth strip 23 and the second sawtooth strip 24 through the gear 22, the second sawtooth strip 24 is pressed to drive the first sawtooth strip 23, the connecting plate 26, the first dust filter screen 30 and the second dust filter screen 34 to move upwards, when the first dust filter screen 30 reaches the screen groove 20, the first dust filter screen 30 is drawn out, the material dust and water can pass through the second dust filter screen 34 without affecting the material dust filtration, at this time, the first dust filter screen 30 can be taken out for cleaning, when the cleaning is finished, the first dust filter screen 30 is moved for resetting movement, the second sawtooth strips 24 are continuously pressed, when the second dust filter screen 34 reaches the screen drawing groove 20, the second dust filter screen 34 is taken out, at this time, the second dust filter screen 34 can be cleaned, when the cleaning is finished, the second dust filter screen 34 is moved for resetting movement, the second sawtooth strips 24 are loosened, the connecting plate 26, the first dust filter screen 30 and the second dust filter screen 34 can be restored to the original position under the action of gravity, the limiting plate 25 can prevent the gear 22 from being separated from the first sawtooth strips 23 and the second sawtooth strips 24, through the arranged first dust filter screen 30 and the second dust filter screen 34, under the condition that the work of the discharge port of the movable weighing trolley is not affected, the dust of the material entering the water tank 1 is cleaned, the situation that the water discharge pipe 18 is blocked due to excessive accumulation is prevented, the cleaning work of the dust falling mechanism at the discharge port of the movable weighing trolley is facilitated, meanwhile, when the protective shell 13 is positioned at one end of the first material filter screen 36 and is connected for use, the first fan 2 and the second fan 3 can adsorb the lighter material on the side wall of the first material filter screen 36, at the moment, the fixed plate 39 is moved, the two groups of telescopic springs 37 are in a compression state, when one side of the fixed plate 39 is contacted with one side of the inside of the slide rail groove 38, the fixed plate 39 is loosened, the two groups of telescopic springs 37 are under the self elastic action to abut against one group of filter screen plates 35 and the first material filter screen 36 to perform reset motion, when the other side of the fixed plate 39 is contacted with the other side of the inside of the slide rail groove 38, one group of filter screen plates 35 and the first material filter screen 36 can, with first material filter screen 36 separation, through first material filter screen 36 and the second material filter screen 40 that sets up, can prevent material and first centrifugal fan blade 6 contact, it facilitates for the use of portable dolly discharge gate dust fall mechanism of weighing.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A movable weighing trolley discharge port dust fall mechanism is characterized by comprising a water tank (1) and a protective shell (13), wherein a first fan (2), a second fan (3) and nine groups of through holes (17) are arranged on the upper portion of the water tank (1), a first motor (4) is installed on one side of the first fan (2), a first rotating shaft (5) is installed at the output end of the first motor (4) in a clamped mode, a first centrifugal fan blade (6) is fixedly installed on the side wall of the first rotating shaft (5), a second motor (7) is installed on one side of the second fan (3), a second rotating shaft (8) is installed at the output end of the second motor (7) in a clamped mode, a second centrifugal fan blade (9) is fixedly installed on the side wall of the second rotating shaft (8), two groups of water retaining rings (10), a stainless steel filter screen (11) and two groups of cooling water curtains (12) are installed inside the protective shell (13), two sets of the upper portion fixed mounting of cooling cascade (12) has aqueduct (14), and the one end of aqueduct (14) installs inlet tube (15) to ball valve (16) are installed to the lateral wall of inlet tube (15), the other end of aqueduct (14) runs through the upper portion of protective housing (13), the lateral wall of water tank (1) is provided with drain pipe (18), leads to groove (19), takes out wire groove (20) and limiting plate (25), the inside slidable mounting of water tank (1) has first dust filter screen (30) and second dust filter screen (34), the opening part of protective housing (13) is provided with first material filter screen (36) and second material filter screen (40).

2. The discharging port dust settling mechanism of the mobile weighing trolley according to claim 1, wherein two sides of the first dust filter screen (30) are fixedly provided with first T-shaped sliding plates (29), two groups of the first T-shaped sliding plates (29) are sleeved with first sliding rails (27), two groups of the first sliding rails (27) are provided with first T-shaped sliding chutes (28), two groups of the first T-shaped sliding plates (29) are respectively positioned inside two groups of the first T-shaped sliding chutes (28), two sides of the second dust filter screen (34) are fixedly provided with second T-shaped sliding plates (33), two groups of the second T-shaped sliding plates (33) are sleeved with second sliding rails (31), two groups of the second sliding rails (31) are provided with second T-shaped sliding chutes (32), two groups of the second T-shaped sliding plates (33) are respectively positioned inside the second T-shaped sliding chutes (32), two sets of the upper portion fixed mounting of first slide rail (27) has connecting plate (26), and the upper portion fixed mounting of connecting plate (26) has first sawtooth strip (23) to gear (22) are installed in the lateral wall meshing of first sawtooth strip (23), axis of rotation (21) are installed in the inside rotation of gear (22), and the both ends of axis of rotation (21) are located respectively and lead to preceding, the rear end face inside of groove (19), second sawtooth strip (24) are installed in the opposite side meshing of gear (22).

3. The dust fall mechanism at the discharge port of the mobile weighing trolley according to claim 2, wherein the two sets of the first slide rails (27) and the two sets of the second slide rails (31) are fixedly connected by welding.

4. The movable weighing trolley discharge port dust fall mechanism according to claim 1, wherein the outer side walls of the first material filter screen (36) and the second material filter screen (40) are fixedly sleeved with a filter screen plate (35), two sets of expansion springs (37) are fixedly mounted on one side of the first fan (2), one ends of the two sets of expansion springs (37) are fixedly connected with one set of the filter screen plate (35), a fixing plate (39) is fixedly mounted on one side wall of the filter screen plate (35), a slide rail groove (38) is formed in the side wall of the protective shell (13), and the fixing plate (39) penetrates through the slide rail groove (38).

5. The dust fall mechanism at the discharge port of the mobile weighing trolley according to claim 4, wherein the vertical section length of the two sets of the filter screen plates (35) is slightly smaller than the internal vertical section length of the protective shell (13), and one set of the filter screen plates (35) at one side of the second fan (3) is fixedly connected with the protective shell (13).

6. The mobile weighing trolley discharge port dust fall mechanism according to claim 1, wherein the stainless steel filter screen (11) and two sets of cooling water curtains (12) are located between two sets of water retaining rings (10).

7. The dust fall mechanism at the discharge hole of the mobile weighing trolley according to claim 1, wherein one end side wall of the drain pipe (18) is in contact with the inner bottom surface of the water tank (1).

8. The dust fall mechanism at the discharge port of the mobile weighing trolley according to claim 1, wherein the first fan (2) and the second fan (3) are both located on the same horizontal line.

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