A construction machinery cab air conditioning filter structure

Abstract

The present invention relates to the technical field of air conditioning filter elements, and discloses an air conditioning filter element structure for a cab of an engineering machinery, comprising a protective shell, a filter element being fitted inside the protective shell, and mounting screws being provided through the protective shell, and the mounting screws being tightly fitted to the engineering machinery, and the protective shell being fitted in a groove provided at the air duct of the engineering machinery; and a first rotating shaft being fixedly provided on the protective shell. The air conditioning filter element structure for the cab of an engineering machinery, by adding a dustproof plate at the front side of the protective shell, can shield the air inlet groove on the protective shell through the rotation of the dustproof plate, thereby preventing a large amount of dust in the air from entering and adhering to the filter element, thereby ensuring the filtering effect of the filter element on the air and the air intake volume, and the rotation of the dustproof plate can drive the elastic plate and the knocking rod to knock the pressing plate, at which time the vibration is transmitted to the filter element, and part of the dust adhering to the surface of the filter element can be knocked and processed.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning filter elements, and in particular to an air conditioning filter element structure for a cab of an engineering machinery. Background Art

[0002] Excavator bodies, loaders, and road rollers are all engineering machinery, which are mainly used to assist in construction, thereby improving construction efficiency and ensuring construction safety. In order to improve the working environment of drivers or operators and improve work comfort and safety, air conditioners are usually installed on engineering machinery. Because the construction environment of engineering machinery is harsh and the construction site is dusty, the air conditioning filter can filter the air intake of the air conditioner, thereby filtering out air pollution caused by automobile exhaust, dust, and powder.

[0003] However, the following problems still exist in the current use of air conditioning filters:

[0004] Existing air conditioning filters are installed in engineering machinery, usually in an open installation style, that is, the air conditioning filter is in direct contact with the external air. Because the construction environment of engineering machinery is harsh and the construction site is dusty, a lot of dust and impurities are easily attached to the air conditioning filter along with the dust and air. The outside of the air conditioning filter lacks a protective structure, which will affect the normal filtering effect of the air conditioning filter on the air as well as the air intake effect and air intake volume, affecting the cooling or heating effect of the engineering machinery air conditioner and shortening the service life of the air conditioning filter. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an air-conditioning filter structure for the cab of engineering machinery. By adding a baffle on the outside of the air-conditioning filter, the air-conditioning filter can be protected when not in use, thereby preventing dust at the construction site from adhering to the air-conditioning filter and affecting the subsequent use of the air-conditioning filter.

[0006] The present invention provides the following technical solutions: an air conditioning filter element structure for a cab of an engineering machinery, comprising a protective shell, a filter element being fitted inside the shell, and mounting screws being provided through the protective shell, and the mounting screws being tightly fitted to the engineering machinery, and the protective shell being fitted in a groove opened in an air duct of the engineering machinery; a first rotating shaft being fixedly provided on the protective shell, and a pressing plate being provided on the first rotating shaft, an elastic component and a driving component being provided inside the pressing plate, a second rotating shaft being rotatably provided at the front side of the protective shell, and a dustproof plate being provided on the second rotating shaft, a rotating gear being fixedly provided on the right side of the second rotating shaft, and the rotating gear being meshed with a moving rack, a telescopic rod being fixedly provided at the lower end of the moving rack, and the telescopic rod and the protective shell being connected to each other.

[0007] Furthermore, the pressing plate forms a rotating mechanism with the first rotating shaft through a through groove opened at its upper end, and the pressing plate is tightly fitted with the rear side of the filter element. Through the above structure, it is convenient to press and limit the filter element through the pressing plate.

[0008] Furthermore, a sealing plate is fixedly arranged inside the protective shell, and a square groove is provided in the middle of the sealing plate, and the sealing plate is tightly fitted to the rear side of the pressing plate. Through the above structure, the sealing effect between the pressing plate and the engineering machinery can be easily ensured.

[0009] Furthermore, the dustproof plate is rotatably connected to the protective shell via a second rotating shaft, and the dustproof plate is tightly fitted to the front side of the protective shell, and there are three dustproof plates in total. Through the above structure, the dustproof plate can be used to protect the filter element when not in use.

[0010] Furthermore, the elastic component includes an elastic plate and a knocking rod, and the elastic plate is fixedly installed in a groove opened inside the pressing plate, and the knocking rod is fixedly installed on the lower surface of the right side of the elastic plate. Through the above structure, the elastic plate is easily deformed and the deformation is restored so that the knocking rod knocks the pressing plate, so as to achieve the purpose of knocking and dust removal on the filter element.

[0011] Furthermore, the driving component includes a squeezing ball and a traction steel rope, and the squeezing ball and the elastic plate are in contact with each other, and the squeezing ball and the traction steel rope are connected to each other, the traction steel rope is slidably arranged inside the pressing plate, and the traction steel rope is fixedly installed on the uppermost dustproof plate. Through the above structure, the traction steel rope can be driven to move by rotating the dustproof plate.

[0012] Furthermore, the rotating gear is meshedly connected with the moving rack through the gear tooth structure provided on the moving rack, and three groups of gear tooth structures are equidistantly provided on the moving rack, and each group is provided with five gear tooth structures. Through the above structure, the rotating gear can be driven to rotate by the movement of the moving rack.

[0013] Furthermore, a dust cover is slidably arranged in the square groove opened on the engineering machinery, and a dust collecting box is arranged at the lower end of the dust cover, and the dust collecting box is placed in the groove opened on the front side of the engineering machinery. Through the above structure, the dust that falls by knocking can be easily collected through the dust collecting box.

[0014] Furthermore, a support plate is slidably arranged in the square groove opened on the engineering machinery, and the rear end of the protective shell is arranged, and the support plate is composed of two plate-like structures, and the support plate is tightly fitted with the filter element. Through the above structure, the filter element can be supported and limited by the support plate.

[0015] Furthermore, a control component is provided on the dust cover, and the control component includes a fixed plate, a push rod and a push spring. The fixed plate is symmetrically arranged on the upper surface of the dust cover, and the push rod is connected to the fixed plate, the push spring is fixedly installed on the fixed plate, and the push spring and the rear end of the protective shell are in contact with each other, and the push rod and the dust plate are in contact with each other. Through the above structure, the fixed plate can be pushed back to its original position by the push spring.

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

[0017] The air conditioning filter element structure of the engineering machinery cab increases a dustproof plate at the front side of the protective shell, so that when the air conditioning is not in use, the dustproof plate can be rotated to cover the air inlet groove on the protective shell, effectively preventing a large amount of dust in the air from entering and adhering to the filter element, ensuring the filtering effect of the filter element on the air and the air intake volume, and at the same time effectively improving the service life of the filter element, and with the rotation of the dustproof plate, the elastic plate and the knocking rod can be driven to knock the pressing plate, and at this time, the vibration is transmitted to the filter element, which can knock part of the dust attached to the surface of the filter element, and the fallen dust enters the dust collecting box for unified collection, so as to avoid the fallen dust being raised again during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main three-dimensional structure of the dustproof plate of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating gear of the present invention from a side view;

[0020] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the pressing plate of the present invention from a side view;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the sealing plate of the present invention from a side view;

[0022] Figure 5 It is a schematic diagram of a three-dimensional cross-sectional structure of a filter element of the present invention from a side view;

[0023] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the elastic component of the present invention;

[0024] Figure 7 This is a schematic diagram of the rear three-dimensional structure of the protective housing of the present invention;

[0025] Figure 8 It is a schematic diagram of the main perspective cross-sectional structure of the rotating gear of the present invention;

[0026] Fig. 9It is a schematic diagram of the three-dimensional structure of the movable rack of the present invention from a side view.

[0027] In the figure: 1. Protective shell; 2. Filter element; 3. Pressing plate; 4. Sealing plate; 5. First rotating shaft; 6. Elastic component; 601. Elastic plate; 602. Knocking rod; 7. Driving component; 701. Squeezing ball; 702. Traction rope; 8. Dust plate; 9. Second rotating shaft; 10. Rotating gear; 11. Moving rack; 12. Telescopic rod; 13. Support plate; 14. Dust cover; 15. Dust box; 16. Control component; 161. Fixed plate; 162. Push rod; 163. Push spring; 17. Mounting screw. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-Figure 9 The present invention provides a technical solution: an air conditioning filter element structure for a cab of an engineering machinery, comprising a protective shell 1, a filter element 2 is fitted inside the protective shell 1, and a mounting screw 17 is provided through the protective shell 1, and the mounting screw 17 is tightly fitted with the engineering machinery, and the protective shell 1 is fitted in a groove opened at the air duct of the engineering machinery; a first rotating shaft 5 is fixedly provided on the protective shell 1, and a pressing plate 3 is provided on the first rotating shaft 5, and an elastic component 6 and a driving component 7 are provided inside the pressing plate 3, a second rotating shaft 9 is rotatably provided at the front side of the protective shell 1, and a dustproof plate 8 is provided on the second rotating shaft 9, and a rotating gear is fixedly provided on the right side of the second rotating shaft 9 Wheel 10, and the rotating gear 10 and the moving rack 11 are meshed with each other, a telescopic rod 12 is fixedly provided at the lower end of the moving rack 11, and the telescopic rod 12 is connected to the protective shell 1; the pressing plate 3 forms a rotating mechanism with the first rotating shaft 5 through the through groove opened at its upper end, and the pressing plate 3 is tightly fitted to the rear side of the filter element 2; a sealing plate 4 is fixedly provided inside the protective shell 1, and a through square groove is opened in the middle position of the sealing plate 4, and the sealing plate 4 is tightly fitted to the rear side of the pressing plate 3; the dustproof plate 8 is rotatably connected with the protective shell 1 through the second rotating shaft 9, and the dustproof plate 8 is tightly fitted to the front side of the protective shell 1, and there are three dustproof plates 8 in total. The rotating gear 10 is meshedly connected with the moving rack 11 through the gear structure arranged on the moving rack 11, and three groups of gear structures are arranged at equal distances on the moving rack 11, and each group is arranged with five gear structures; a support plate 13 is arranged at the rear end of the protective shell 1, and the support plate 13 is composed of two plate-like structures, and the support plate 13 is tightly fitted with the filter element 2.

[0030] When it is necessary to install and fix the filter element 2, the filter element 2 is placed in the groove opened inside the protective shell 1, and then the protective shell 1 is moved in the direction close to the engineering machinery, because a sealing plate 4 is provided on the outside of the air duct of the engineering machinery, until the pressing plate 3 and the sealing plate 4 are fitted with each other, at this time, the pressing plate 3 and the protective shell 1 begin to squeeze the filter element 2 to achieve the purpose of fixing the filter element 2, and then the mounting screws 17 are passed through the cylindrical positioning grooves opened at the four corners of the protective shell 1, and then the mounting screws 17 are rotated until the mounting screws 17 are connected with the threaded holes opened on the engineering machinery. At this time, the protective shell 1 can be fixed on the engineering machinery. When the air conditioner needs to be used, the telescopic rod 12 starts to work, because the upper end of the telescopic rod 12 is fixedly provided with a moving rack 11, the moving rack 11 starts to move downward, and the moving rack 11 is meshed with the rotating gear 10, and the rotating gear 10 starts to rotate clockwise, because the rotating gear 10 is installed on the second rotating shaft 9, and the second rotating shaft 9 is fixedly connected with the dustproof plate 8. At this time, the dustproof plate 8 begins to rotate clockwise, that is, the dustproof plate 8 begins to rotate in the direction away from the protective shell 1. Because three sets of gear structures are provided on the moving rack 11, and each set of gear structures is meshed with the rotating gear 10, and each set of gear structures on the moving rack 11 is provided with five, it can effectively ensure that the dustproof plate 8 rotates 90°. At this time, the air intake effect can be ensured, that is, the ventilation effect of the filter element 2 is not affected. When the use is completed, the telescopic rod 12 starts to work (the telescopic rod 12 can be lifted and lowered by electric control or by hydraulic control). At this time, the telescopic rod 12 begins to drive the moving rack 11 to move downward. At this time, the moving rack 11 begins to drive the rotating gear 10 to rotate counterclockwise, and the dustproof plate 8 begins to rotate in the direction close to the protective shell 1 until it is tightly fitted with the front side of the protective shell 1. At this time, the front end of the protective shell 1 can be dust-proof protected to prevent more dust from adhering to the filter element 2 and clogging the filter element 2, thereby ensuring the filtering effect and service life of the filter element 2.

[0031] The elastic component 6 includes an elastic plate 601 and a knocking rod 602, and the elastic plate 601 is fixedly installed in a groove opened inside the pressing plate 3, and the knocking rod 602 is fixedly installed on the lower surface of the right side of the elastic plate 601; the driving component 7 includes a squeezing ball 701 and a traction steel rope 702, and the squeezing ball 701 and the elastic plate 601 are in contact with each other, and the squeezing ball 701 and the traction steel rope 702 are connected to each other, the traction steel rope 702 is slidably arranged inside the pressing plate 3, and the traction steel rope 702 is fixedly installed on the dustproof plate 8 at the uppermost end.

[0032] As the dustproof plate 8 moves toward the protective shell 1, the traction rope 702 provided on the dustproof plate 8 begins to be pulled. Because the traction rope 702 is connected to the squeezing ball 701, the squeezing ball 701 begins to move upward in the pressing plate 3, and the squeezing ball 701 squeezes the elastic plate 601 (the elastic plate 601 is made of a material with elasticity and recovery elasticity, that is, the elastic plate 601 can be deformed when subjected to force, and can recover its deformation when not subjected to force). At this time, the elastic plate 601 begins to deform. As the squeezing ball 701 continues to move, the squeezing ball 701 no longer contacts the elastic plate 601, and the elastic plate 601 begins to recover its deformation. As the elastic plate 601 recovers its deformation, the knocking rod 602 installed on the elastic plate 601 hits the pressing plate 3 due to the force. Because the pressing plate 3 is tightly fitted with the filter element 2, the filter element 2 is also vibrated, thereby causing the filter element 2 to When the dust cover 701 is moved closer to the protective shell 1, the traction steel rope 702 begins to be loosened, that is, under the action of the gravity of the squeezing ball 701, the squeezing ball 701 falls downward through the gap between the right side of the elastic plate 601 and the pressing plate 3 (there is space for the squeezing ball 701 to pass between the right side of the elastic plate 601 and the pressing plate 3, and the left side of the elastic plate 601 is higher than the right side of the elastic plate 601). Because the traction steel rope 702 is set to the middle position of the pressing plate 3, the squeezing ball 701 is hanging in the middle of the pressing plate 3 at this time, which is convenient for the next up and down movement. That is, through the movement of the squeezing ball 701, the elastic plate 601 can drive the knocking rod 602 to knock, so as to achieve a certain dust removal effect on the filter element 2 and reduce the attachment of dust on the filter element 2.

[0033] A dust cover 14 is slidably arranged in a square groove opened on the engineering machinery, and a dust box 15 is arranged at the lower end of the dust cover 14, and the dust box 15 is placed in the groove opened on the front side of the engineering machinery; a control component 16 is arranged on the dust cover 14, and the control component 16 includes a fixed plate 161, a push rod 162 and a push spring 163, the fixed plate 161 is symmetrically arranged on the upper surface of the dust cover 14, and the push rod 162 is connected to the fixed plate 161, the push spring 163 is fixedly installed on the fixed plate 161, and the push spring 163 is in contact with the rear end of the protective shell 1, and the push rod 162 is in contact with the dust plate 8.

[0034] As the dustproof plate 8 rotates in the direction close to the protective shell 1, the dustproof plate 8 begins to contact the push rod 162 and pushes the push rod 162. Because the push rod 162 is installed on the fixed plate 161, and the fixed plate 161 is connected to the dustproof cover 14, the dustproof cover 14 begins to move in the direction close to the engineering machinery, and the push spring 163 begins to be stretched and deformed, that is, the dustproof cover 14 begins to slide in the groove opened on the engineering machinery. At this time, the dustproof cover 14 no longer blocks the upper end of the dust collecting box 15, and the dust can fall into the dust collecting box 15 for collection (part of the dust falling on the dustproof cover 14 can be scraped into the dust collecting box by the engineering machinery as the dustproof cover 14 moves). The dust box 15 is in the open state when the air conditioner is not in use. When the air conditioner is in use, the dust plate 8 starts to move away from the protective shell 1. At this time, the dust plate 8 is no longer in contact with the push rod 162. At this time, as the push spring 163 recovers its deformation, the push spring 163 starts to pull the fixed plate 161, that is, the fixed plate 161 starts to move toward the protective shell 1, and the dust cover 14 connected to the fixed plate 161 also starts to move toward the protective shell 1, that is, the dust cover 14 starts to cover the upper end of the dust box 15, which can effectively prevent the dust collected in the dust box 15 from being lifted up due to airflow when the air conditioner is in use.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air conditioning filter element structure for a cab of an engineering machinery, comprising a protective shell (1), a filter element (2) being fitted inside the protective shell, a mounting screw (17) being provided through the protective shell (1), and the mounting screw (17) being closely fitted to the engineering machinery, and the protective shell (1) being closely fitted in a groove provided in an air duct of the engineering machinery; characterized in that: Also includes: The protective housing (1) is fixedly provided with a first rotating shaft (5), and a pressing plate (3) is provided on the first rotating shaft (5), and an elastic component (6) and a driving component (7) are provided inside the pressing plate (3); a second rotating shaft (9) is rotatably provided at the front side of the protective housing (1), and a dustproof plate (8) is provided on the second rotating shaft (9); a rotating gear (10) is fixedly provided on the right side of the second rotating shaft (9), and the rotating gear (10) and the moving rack (11) are meshed with each other; a telescopic rod (12) is fixedly provided at the lower end of the moving rack (11), and the telescopic rod (12) and the protective housing (1) are connected to each other; The elastic component (6) comprises an elastic plate (601) and a knocking rod (602), wherein the elastic plate (601) is fixedly mounted in a groove provided inside the pressing plate (3), and the knocking rod (602) is fixedly mounted on the lower surface of the right side of the elastic plate (601); The driving component (7) comprises a squeezing ball (701) and a traction steel rope (702), and the squeezing ball (701) and the elastic plate (601) are in contact with each other, and the squeezing ball (701) and the traction steel rope (702) are connected to each other, the traction steel rope (702) is slidably arranged inside the pressing plate (3), and the traction steel rope (702) is fixedly mounted on the dustproof plate (8) at the uppermost end; The rotating gear (10) is meshedly connected with the moving rack (11) via a gear tooth structure provided on the moving rack (11), and three groups of gear tooth structures are provided on the moving rack (11) at equal distances, and each group has five gear tooth structures; A dust cover plate (14) is slidably arranged in the square groove opened on the engineering machinery, and a dust collecting box (15) is arranged at the lower end of the dust cover plate (14), and the dust collecting box (15) is placed in the groove opened on the front side of the engineering machinery; A control assembly (16) is provided on the dust cover (14), and the control assembly (16) comprises a fixed plate (161), a push rod (162) and a push spring (163); the fixed plate (161) is symmetrically arranged on the upper surface of the dust cover (14), and the push rod (162) and the fixed plate (161) are connected to each other; the push spring (163) is fixedly mounted on the fixed plate (161), and the push spring (163) and the rear end of the protective housing (1) are in contact with each other, and the push rod (162) and the dust cover (8) are in contact with each other.

2. The air conditioning filter structure for a construction machinery cab according to claim 1, characterized in that: The pressing plate (3) forms a rotating mechanism with the first rotating shaft (5) through a through groove provided at the upper end thereof, and the pressing plate (3) is tightly fitted to the rear side of the filter element (2).

3. The air conditioning filter structure for a construction machinery cab according to claim 1, characterized in that: A sealing plate (4) is fixedly arranged inside the protective housing (1), and a through square groove is provided in the middle of the sealing plate (4), and the sealing plate (4) is tightly fitted to the rear side of the pressing plate (3).

4. The air conditioning filter structure for a construction machinery cab according to claim 1, characterized in that: The dustproof plate (8) is rotatably connected to the protective housing (1) via a second rotating shaft (9), and the dustproof plate (8) is tightly fitted to the front side of the protective housing (1), and a total of three dustproof plates (8) are provided.

5. The air conditioning filter structure for a construction machinery cab according to claim 1, characterized in that: A support plate (13) is provided at the rear end of the protective housing (1), and the support plate (13) is composed of two plate-like structures, and the support plate (13) is tightly fitted to the filter element (2).

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