CN112377028A

CN112377028A - Front window opening and closing device of construction machinery

Info

Publication number: CN112377028A
Application number: CN202011268858.8A
Authority: CN
Inventors: 倪晋欢; 刘�东
Original assignee: Ma'anshan Quantum Wire Automation Technology Co ltd
Current assignee: Ma'anshan Quantum Wire Automation Technology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-02-19

Abstract

The invention discloses a front window opening and closing device of construction machinery, which comprises a mounting plate, wherein both sides of the end part of the mounting plate are fixedly connected with fixing plates, and the surfaces of the fixing plates are provided with bolt holes; an outer cylinder is hinged to one side of the mounting plate, an inner cylinder is inserted into the end portion of the outer cylinder, the mounting plate is arranged in a hollow mode and is communicated with the outer cylinder through a communicating pipe, and a pushing plate is placed inside the mounting plate; the other side of the mounting plate is provided with an operating device; the operating ring is pulled in the direction far away from the mounting plate initially, a part of the front window can be opened by small force under the action of the lever principle, so that the adhered sealing ring is loosened, and then the front window is pushed in the direction close to the mounting plate to be opened.

Description

Front window opening and closing device of construction machinery

Technical Field

The invention belongs to the technical field of mechanical auxiliary equipment, and particularly relates to a front window opening and closing device of construction machinery.

Background

An opening for observing a working site directly without penetrating through a glass is formed in a front surface of a cab of a construction machine such as a hydraulic excavator, and the opening is opened and closed by a front window. The front window moves to a fully closed position covering the opening of the front surface of the cab and a fully open position along the ceiling in the cab, and is locked and unlocked (unlocked) at the fully closed position and the fully open position. As an invention for opening and closing a front window of a construction machine, an invention is known in which the front window is moved to a fully closed position and a fully open position by an electrical force, and is locked and unlocked at the fully closed position and the fully open position by the electrical force.

Because construction machinery's front window is under the corrosive environment such as cement, during long-term use, sealing washer on its front window can receive the corruption of cement and adhere on machinery, when opening the front window, can break loose the adhesion force of sealing washer and the gravity of front window at first, need open the front window with great power when initial, and when pushing forward with the hand, if violently with great power promotion, in the twinkling of an eye that the front window was opened, personnel's hand can keep same power and promote forward because the power of subtracting, after the front window is opened completely, the hand can receive the resistance suddenly and stop, cause the discomfort of hand.

Therefore, it is necessary to solve the above problems by providing a front window opening/closing device for a construction machine that can reduce difficulty in opening a window and prevent discomfort of hands due to sudden stop of the hands when the window is opened.

Disclosure of Invention

In view of the above problems, the present invention provides a front window opening and closing device for a construction machine, which solves the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a front window opening and closing device of construction machinery comprises a mounting plate, wherein both sides of the end part of the mounting plate are fixedly connected with fixing plates, and the surfaces of the fixing plates are provided with bolt holes; an outer cylinder is hinged to one side of the mounting plate, an inner cylinder is inserted into the end portion of the outer cylinder, the mounting plate is arranged in a hollow mode and is communicated with the outer cylinder through a communicating pipe, and a pushing plate is placed inside the mounting plate; the other side of the mounting plate is provided with an operating device, wherein,

the operating device comprises a U-shaped plate, a push rod is arranged in the U-shaped plate, one end of the push rod extends into the mounting plate and is connected with the push plate at the end, the other end of the push rod is positioned in the U-shaped rod, a limiting groove is fixedly connected at the end, a T-shaped block is arranged in the limiting groove, one side of the T-shaped block is hinged with a manual rod, the bottom end of the manual rod is connected with an operating ring, and a square groove is formed in the limiting groove at the other side of the T-shaped block; the top of the T-shaped block is fixedly connected with an inserted bar, and the surface of the inserted bar, which is close to the top end of the inserted bar, is sleeved with a rubber plug; a square plate is horizontally arranged on the mounting plate corresponding to the direction groove, and the surface of the square plate is provided with an insertion hole; a through groove is formed in the wall thickness of the bottom of the U-shaped plate, a manual rod penetrates through the through groove, and the manual rod is located at the position, away from one end of the mounting plate, of the through groove; the equal fixedly connected with gag lever post of manual pole front and back side has all seted up the shifting chute on the cell wall of side around the through groove, and gag lever post one end is located the shifting chute inside.

Preferably, the U template top all is provided with the fixed axle near the position department of front and back side, the barrier plate has been cup jointed on the fixed axle, the torsional spring is installed with the department of cup jointing of barrier plate to the fixed axle, the barrier plate has been seted up near the one end of catch bar and has been put the thing groove, it has the translation board to put thing inslot portion grafting, translation board one end is located puts the thing groove outside, the translation board other end is located puts the thing inslot portion, and this end is connected with the barrier plate through return spring, the one side that the translation board is close to the mounting panel is parallel with the mounting panel side, and the thickness of translation board left and.

Preferably, a compression cylinder is arranged on each of two sides of the return spring, a hose is connected to the bottom end of each compression cylinder, the bottom end of each hose penetrates through the U-shaped plate downwards, and the bottom end of each hose inclines towards the operation ring.

Preferably, square groove and square board phase-match, inserted bar and jack phase-match, the gag lever post matches with the shifting chute.

Preferably, the number of the operating devices is multiple, and a connecting rod is connected between two adjacent manual levers.

Preferably, the same rubber strip is bonded to the front and the back of the push plate from top to bottom, and the middle of the rubber strip is embedded into the push plate.

Preferably, the diameter of the rubber plug is larger than that of the jack, and the diameter of the top of the rubber plug is smaller than that of the bottom of the rubber plug.

The invention has the technical effects and advantages that:

1. the operating ring is firstly pulled in the direction far away from the mounting plate at the beginning, and the front window can be partially opened by small force under the action of the lever principle, so that the adhered sealing ring is loosened, and then the operating ring is pushed in the direction close to the mounting plate, so that the front window is opened;

2. according to the invention, the limiting groove is pushed to move leftwards, namely when the front window is opened, the translation plate can compress the return spring, the translation plate enters the object placing groove and cannot push the blocking plate to deflect, when the front window is closed, the translation plate can be pushed to rotate around the fixed shaft, the torsion spring is deformed when the blocking plate rotates, the deformation difficulty of the torsion spring is higher, the speed of the front window is reduced when the front window is closed, and the impact force for preventing the front window from being closed is higher;

3. according to the invention, the operation ring is pushed by the palm, so that the limiting groove is moved to translate the plate and push the translation plate into the blocking plate, the translation plate can compress the compression cylinder, gas in the compression cylinder is sprayed out through the hose, and the sprayed gas can cool the hand, so that the hand is prevented from sweating and slipping on the operation ring.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

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 description of the embodiments or 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 those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

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

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is a perspective view of one of the angles of the manipulating device of the present invention;

FIG. 4 is a cross-sectional view of a major face of the mounting plate of the present invention;

fig. 5 is a schematic cross-sectional view of a barrier plate according to the present invention.

In the figure: 1. mounting a plate; 2. a fixing plate; 3. an outer cylinder; 4. an inner barrel; 5. a communicating pipe; 6. a push plate; 7. an operating device; 71. a U-shaped plate; 711. a through groove; 712. a moving groove; 72. a push rod; 73. a limiting groove; 74. a T-shaped block; 75. a manual lever; 76. an operating ring; 77. inserting a rod; 771. a rubber plug; 78. a square plate; 781. a jack; 79. a limiting rod; 8. a blocking plate; 9. a storage groove; 10. a translation plate; 11. a return spring; 12. a compression cylinder; 13. a hose; 14. a connecting rod; 15 rubber strips.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art without any creative effort based on the embodiments of the present invention belong to the protection scope of the present invention, and the front, rear, left, right, up and down are based on the view direction of fig. 4.

The invention provides a front window opening and closing device of construction machinery, which comprises a mounting plate 1, wherein both sides of the end part of the mounting plate 1 are fixedly connected with fixing plates 2, and the surfaces of the fixing plates 2 are provided with bolt holes; an outer cylinder 3 is hinged to one side of the mounting plate 1, an inner cylinder 4 is inserted into the end portion of the outer cylinder 3, the mounting plate 1 is arranged in a hollow mode, the mounting plate 1 is communicated with the outer cylinder 3 through a communicating pipe 5, and a pushing plate 6 is arranged inside the mounting plate 1; the other side of the mounting plate 1 is provided with an operating device 7, wherein,

the operating device 7 comprises a U-shaped plate 71, a pushing rod 72 is arranged inside the U-shaped plate 71, one end of the pushing rod 72 extends into the mounting plate 1 and is connected with a pushing plate 6 at the end, the other end of the pushing rod 72 is positioned inside the U-shaped rod, a limiting groove 73 is fixedly connected at the end, a T-shaped block 74 is arranged inside the limiting groove 73, one side of the T-shaped block 74 is hinged with a manual rod 75, the bottom end of the manual rod 75 is connected with an operating ring 76, and a square groove is formed in the limiting groove 73 at the other side of the T-shaped block 74; the top of the T-shaped block 74 is fixedly connected with an inserted bar 77, and a rubber plug 771 is sleeved at the position, close to the top end, of the surface of the inserted bar 77; a square plate 78 is horizontally arranged on the mounting plate 1 corresponding to the direction groove, and an insertion hole 781 is formed in the surface of the square plate 78; a through groove 711 is formed in the wall thickness of the bottom of the U-shaped plate 71, the manual lever 75 penetrates through the through groove 711, and the manual lever 75 is located at one end, far away from the mounting plate 1, of the through groove 711; the front and rear sides of the manual lever 75 are fixedly connected with limit levers 79, the groove walls of the front and rear sides of the through groove 711 are provided with moving grooves 712, and one end of each limit lever 79 is located inside each moving groove 712.

As a specific embodiment of the invention, fixed shafts are arranged at positions close to the front side and the rear side of the top of the U-shaped plate 71, the fixed shafts are sleeved with the blocking plates 8, torsion springs are arranged at the sleeved positions of the fixed shafts and the blocking plates 8, one ends of the blocking plates 8, close to the pushing rods 72, are provided with object placing grooves 9, translation plates 10 are inserted into the object placing grooves 9, one ends of the translation plates 10 are positioned at the outer sides of the object placing grooves 9, the other ends of the translation plates 10 are positioned in the object placing grooves 9 and are connected with the blocking plates 8 through return springs 11, one surfaces of the translation plates 10, close to the mounting plate 1, are parallel to the side surface of the mounting plate 1, and the thickness of the translation plates 10 in; when pushing limiting groove 73 to move left, namely when opening the front window, the in-process that limiting groove 73 removed, because limiting groove 73 contacts with the arcwall face of translation board 10 earlier, and then can push translation board 10 to remove, translation board 10 can compress return spring 11, translation board 10 enters into and puts thing inslot 9 inside, and can not promote barrier plate 8 deflection, it is few to overcome doing work that translation board 10 removed, when closing the front window, catch bar 72 drives limiting groove 73 and gets back to the normal position, limiting groove 73 can receive the blockking of translation board 10, at this moment because the parallel face contact with translation board 10, can not push translation board 10 to barrier plate 8 inside, but push translation board 10 and rotate around the fixed axle, make the torsional spring warp when barrier plate 8 rotates, the degree of difficulty that the torsional spring warp is great, and then the speed when the front window closes reduces, prevent that the impact that the front window closed is great.

As a specific embodiment of the present invention, two sides of the return spring 11 are provided with a compression cylinder 12, the bottom end of the compression cylinder 12 is connected with a hose 13, the bottom end of the hose 13 downwardly penetrates through the U-shaped plate 71, and the bottom end of the hose 13 is inclined towards the operation ring 76; when opening the front window, the palm promotes operation ring 76, and translation board 10 when making spacing groove 73 remove to promote translation board 10 in to barrier plate 8, translation board 10 can compress compression section of thick bamboo 12, makes the gas in the compression section of thick bamboo 12 spout through hose 13, and then the effect of cooling can be played to the hand to spun gas, prevents that the hand from perspiring, causes the hand to skid on operation ring 76.

As a specific embodiment of the present invention, the square groove is matched with the square plate 78, the inserting rod 77 is matched with the inserting hole 781, and the limiting rod 79 is matched with the moving groove 712.

As a specific embodiment of the present invention, the manipulating device 7 is provided in a plurality, and a connecting rod 14 is connected between two adjacent manual levers 75; when the number of the operating devices 7 is multiple, two operating rings 76 can be controlled by two hands respectively, so that the front window can be opened conveniently by force applied by a person.

As a specific embodiment of the invention, the same rubber strip 15 is bonded to the front, the back, the upper and the lower of the push plate 6, and the middle part of the rubber strip 15 is embedded into the push plate 6; rubber strip 15 can make the air in the mounting panel 1 totally pushed to communicating pipe 5 when the catch plate 6 removes to inside rubber strip 15 embedded into catch plate 6, make the connection stability between rubber strip 15 and catch plate 6 better.

As a specific embodiment of the present invention, the diameter of the rubber plug 771 is larger than that of the jack 781, and the diameter of the top of the rubber plug 771 is smaller than that of the bottom; the diameter of plug 771 is bigger than the diameter of jack 781, and when can guarantee that plug 771 enters into jack 781 completely, the deflection of plug 771 is bigger, and the frictional force when plug 771 glides is bigger, makes the inserted bar 77 insert the stability in jack 781 better.

The working principle of the invention is as follows:

referring to the attached drawings 1-5 of the specification, because the front window of the construction machine is used for a long time in corrosive environments such as cement, a sealing ring on the front window can be corroded by the cement and adhered to the machine, when the front window is opened, the adhesion force of the sealing ring and the gravity of the front window can be broken away firstly, the front window can be opened only by large force initially, and when the front window is pushed forwards by a hand, if the front window is pushed forwards by large force suddenly, at the moment of opening the front window, the hand of a person can be pushed forwards by the same force because the force is reduced untimely, and after the front window is completely opened, the hand can be stopped suddenly by resistance to cause discomfort of the hand, the invention mainly solves the problems of reducing the difficulty of opening the window and preventing the hand from being suddenly stopped to cause discomfort of the hand when the window is opened; the specific measures and the using process are as follows: by using the operating device 7, when the front window needs to be opened, the operating ring 76 can be pulled to move to the right side, namely to move away from the mounting plate 1, due to the action of the lever principle, the position near the middle of the manual rod 75 is blocked by the groove wall penetrating through the right side of the groove 711, so that the top end of the manual rod 75 deflects to the left, meanwhile, the limiting groove 73 moves to the mounting plate 1 on the one hand, the T-shaped block 74 moves downwards in the limiting groove 73 on the other hand, when the T-shaped block 74 moves downwards, the manual rod 75 moves to the right integrally, the fulcrum of the manual rod 75 is closer to the T-shaped block 74, the arm of the manual rod is lengthened, the resistance arm is shortened, the difficulty in pulling the operating ring 76 is reduced, finally, the pushing rod 72 pushes the pushing plate 6, the pushing plate 6 pushes the gas in the mounting plate 1 to enter the communicating pipe, the inner barrel 4 is pushed, the inner barrel 4 is hinged with the front window, after the inner barrel 4 extends on the outer barrel 3, the front window is opened, a corroded sealing ring is separated from a machine, then the operating ring 76 is pushed to move leftwards, the push rod 72 is slowly moved leftwards, the initially opened front window is completely opened, then the manual rod 75 is placed vertically, the manual rod 75 is pushed upwards, a rubber plug 771 on the inserted rod 77 at the top of the T-shaped block 74 enters the through hole, the opened front window is fixed, when the front window is closed, the manual rod 75 only needs to be moved downwards, under the action of gravity of the front window, the front window is closed, and all structures on the operating device 7 return to the initial position.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A front window opening and closing device for a construction machine, comprising a mounting plate (1), characterized in that: both sides of the end part of the mounting plate (1) are fixedly connected with fixing plates (2), and bolt holes are formed in the surfaces of the fixing plates (2); an outer cylinder (3) is hinged to one side of the mounting plate (1), an inner cylinder (4) is inserted into the end portion of the outer cylinder (3), the mounting plate (1) is arranged in a hollow mode, the mounting plate (1) is communicated with the outer cylinder (3) through a communicating pipe (5), and a pushing plate (6) is placed inside the mounting plate (1); the other side of the mounting plate (1) is provided with an operating device (7), wherein,

the operating device (7) comprises a U-shaped plate (71), a push rod (72) is arranged inside the U-shaped plate (71), one end of the push rod (72) extends into the mounting plate (1), the push plate (6) at the end is connected with the push rod, the other end of the push rod (72) is located inside the U-shaped rod, a limiting groove (73) is fixedly connected with the other end of the push rod, a T-shaped block (74) is arranged inside the limiting groove (73), a manual rod (75) is hinged to one side of the T-shaped block (74), an operating ring (76) is connected to the bottom end of the manual rod (75), and a square groove is formed in the limiting groove (73) at the other side of the T-; the top of the T-shaped block (74) is fixedly connected with an inserted link (77), and a rubber plug (771) is sleeved at the position, close to the top end, of the surface of the inserted link (77); a square plate (78) is horizontally arranged on the mounting plate (1) corresponding to the direction groove, and an insertion hole (781) is formed in the surface of the square plate (78); a through groove (711) is formed in the wall thickness of the bottom of the U-shaped plate (71), the manual lever (75) penetrates through the through groove (711), and the manual lever (75) is located at the position, away from one end of the mounting plate (1), of the through groove (711); limiting rods (79) are fixedly connected to the front side and the rear side of the manual rod (75), moving grooves (712) are formed in the groove walls of the front side and the rear side of the through groove (711), and one end of each limiting rod (79) is located inside each moving groove (712).

2. A front window opening/closing device for a construction machine according to claim 1, wherein: the utility model discloses a horizontal moving plate, including U template (71), position department that U template (71) top is close to the front and back side all is provided with the fixed axle, barrier plate (8) have been cup jointed on the fixed axle, the torsional spring is installed to the fixed axle and the cup joint department of barrier plate (8), barrier plate (8) are close to the one end of catch bar (72) and have been seted up and have been put thing groove (9), it has translation board (10) to put thing groove (9) inside pegging graft, translation board (10) one end is located and puts thing groove (9) outside, translation board (10) other end is located and puts thing groove (9) inside, and this end is connected with barrier plate (8) through return spring (11), the one side that translation board (10) are close to mounting panel (1) is parallel with mounting panel (1) side, and the thickness of.

3. The front window opening and closing device for construction machinery according to claim 2, wherein: the two sides of the return spring (11) are provided with compression cylinders (12), the bottom ends of the compression cylinders (12) are connected with hoses (13), the bottom ends of the hoses (13) penetrate through the U-shaped plate (71) downwards, and the bottom ends of the hoses (13) incline towards the operation ring (76).

4. The front window opening and closing device for construction machinery according to claim 2, wherein: the square groove is matched with the square plate (78), the inserted link (77) is matched with the insertion hole (781), and the limiting link (79) is matched with the moving groove (712).

5. A front window opening/closing device for a construction machine according to claim 1, wherein: the number of the operating devices (7) is multiple, and a connecting rod (14) is connected between two adjacent manual levers (75).

6. A front window opening/closing device for a construction machine according to claim 1, wherein: the same rubber strip (15) is bonded to the front and the back of the push plate (6) from top to bottom, and the middle of the rubber strip (15) is embedded into the push plate (6).

7. The front window opening/closing device for a construction machine according to claim 4, wherein: the diameter of the rubber plug (771) is larger than that of the jack (781), and the diameter of the top of the rubber plug (771) is smaller than that of the bottom of the rubber plug (771).