WO2015088080A1 - Cabin for construction machine - Google Patents

Abstract

Disclosed is a cabin for a construction machine, comprising: a cabin which provides a space to a driver for operating a construction machine and includes at least a plurality of side wall panels; an air duct positioned on inner side of the side wall panel at the door side of the cabin and having a path through which air moves, an upper end forming a closed structure and a lower end provided with a discharge hole; an outside air suction hole provided on the outer surface of the upper portion of the air duct so as to be connected to the suction hole provided to the side wall panel; an inside-air suction hole provided to the inner surface of the upper portion of the air duct; a partition plate for partitioning the inside space of the air duct into an upper portion and a lower portion; a guide provided on the partition plate; an air filter member which enters through the front entrance hole of the air duct by sliding along the guide; a connection duct for connecting the discharge hole at the lower end of the air duct and the air conditioner to each other; and an inside-air and outside-air blocking member connected to the inside of the upper end of the air duct such that one end thereof can rotate, and selectively opening and closing the outside air suction hole or the inside-air suction hole according to the rotation thereof in two directions.

Description

Cab for construction machinery

It relates to a construction machine cab equipped with an air filter unit for purifying the air flowing into the air conditioner.

An air conditioner installed in a construction machine is a type of air conditioner that functions to ventilate indoor air of a construction machine or to control and purify the temperature and humidity of the indoor air.

In general, an air conditioner includes a compressor for compressing a gaseous refrigerant at a high temperature and a high pressure, a condenser for converting the gaseous refrigerant compressed by the compressor into a liquid state, and an expander for changing the liquid state changed into a liquid state at a low temperature and low pressure by the condenser. And an evaporator which evaporates the refrigerant changed into a liquid state of low temperature and low pressure by an expander and changes it into a gas state, thereby absorbing heat of air to cool the internal air of the construction machine cab.

The air conditioner installed in the construction machine is installed under the seat inside the cab, and one side of the air conditioner is provided with an air filter for introducing the purified air into the air conditioner.

However, in order to check or replace the air filter, the air filter must be removed by removing a bolt fastened to the air conditioner cover using a tool and then removing the air conditioner cover, and then removing the air filter cover while removing the bolt fastened to the air filter cover. Since it is configured to remove and inspect or replace the air filter, the tool must be used every time the air filter is installed and removed, and the installation and removal work is complicated and takes a long time.

In addition, as the air filter is horizontally placed on the floor in the cab, dust easily accumulates, and the performance of the air conditioner is lowered compared to the operating time, thereby making it difficult to comfortably maintain the interior of the cab.

Therefore, the contents described are proposed to solve the above-mentioned problems, and the operator can easily check and replace the air filter of the air conditioner from the outside, which is not in the cab, thereby improving the maintenance efficiency of the air filter and improving the air conditioner performance. It is related to the construction machinery cab that can improve the cab to make the cab more comfortable.

According to a preferred embodiment described contents,

The cab provides space for the driver for the operation of the construction machine and includes a plurality of panels.

An air duct is installed inside the side wall panel of the door side of the cab so that the inside air of the cab or the outside air of the cab can flow to the air conditioner.

The upper end of the air duct is closed and the lower end of the air duct is formed as an outlet.

One side of the upper side of the air duct facing the side wall panel is formed with an outside air inlet connected to the suction hole formed in the side wall panel to allow the air from outside the cab to flow.

On the opposite side of the upper side of the air duct toward the cab is formed an air inlet through which air inside the cab can be introduced.

An inner passage of the air duct is provided with a diaphragm, and the diaphragm divides the inner passage of the air duct into upper and lower portions.

Some sections of the diaphragm are provided with a pair of guides spaced apart from each other.

The guide is coupled to the air filter member that enters and exits through the access hole formed in the front of the air duct, so that the air moved from the top to the bottom of the air duct is moved through the air filter member.

The lower outlets of the air ducts are connected to each other via air conditioners and connecting ducts.

The inside of the upper side of the air duct is associated with the internal and external air blocking member is rotated in both directions with the upper end is the center of rotation is configured to selectively open and close the outside air intake or air intake in accordance with the rotation state of the internal and external air blocking member.

More preferably, the air filter member installed in any one section of the diaphragm is associated with being inclined in the inner space of the air duct.

More preferably, the side wall panel is provided with an outer cover which prevents rainwater from being introduced while allowing external air to flow into the suction hole of the side wall panel.

More preferably, the internal and external air blocking members are associated with being operated in connection with an actuator provided on the outside of the air duct.

More preferably, some sections of the connecting duct are related to those provided with corrugated pipes.

The cab for construction equipment according to the description has the following effects.

In other words, a separate tool is required to check or replace the air filter member installed in the air duct so that the air inside the cab or the air outside the cab can be purged according to the mode of the air conditioner. Without removing the air filter member from the inside of the air duct can be simply checked or replaced, there is an effect that can save time according to the maintenance and management of the air filter member and further increase the efficiency.

In addition, as the inspection of the air filter member is simplified, it is possible to prevent the deterioration of the performance of the air conditioner through periodic inspections, and to make the interior of the cab comfortable.

In addition, since the effects of the described contents are naturally manifested by the configuration of the contents described regardless of whether the inventor recognizes them, the above-described effects are only a few effects according to the contents described, and describe all the effects grasped or existed by the inventors. It should not be recognized.

In addition, the effects of the contents described should be further grasped by the entire description of the specification, even if not described in explicit sentences even those having ordinary knowledge in the technical field to which the contents described are having such effects through this specification. Any effect that can be recognized as should be seen as an effect described herein.

1 is a perspective view illustrating an installation position of an air filter unit installed in a cab according to an embodiment of the present disclosure.

2 is a perspective view illustrating the outside of a cab in which an air filter unit is installed, according to an exemplary embodiment.

3 is a perspective view illustrating main parts cutaway illustrating a state in which an air filter unit installed in a cab is installed, according to an exemplary embodiment.

4A and 4B are main cross-sectional views illustrating an operation process of the air filter unit in the internal and external air modes of the air conditioner according to one embodiment of the disclosed contents.

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

This is intended to explain in detail enough to enable one skilled in the art to easily describe the described contents, which does not mean that the technical spirit and scope of the described contents are limited.

In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of description, terms specifically defined in consideration of the configuration and operation of the present invention will vary depending on the intention or custom of the user or operator And definitions for these terms should be made based on the contents described throughout this specification.

Referring to the configuration of the construction machine cab according to an embodiment of the above-described contents, the cab frame of the construction machine, the air duct that is a passage for moving the air outside the cab or the air inside the cab to the air conditioner, and the upper part of the air duct The outside air inlet formed on one side, the inside air intake formed on the other side of the air duct, and the air duct are divided into two parts up and down, and the diaphragm where the air filter member is installed and the air duct are connected to the air conditioner. It can be divided into a component including a connection duct for giving, and an internal and external air blocking member for selectively closing any one of the outside air inlet and the inside air intake of the air duct. As follows.

The cab 100 is,

It provides a space for the driver for the operation of the construction machine, and comprises a plurality of side wall panels.

Air duct 200,

Is formed inside the side wall panel 110 located behind the door of the cab 100 serves as a passage for moving the air outside the cab 100 or the air inside the cab 100 to the air conditioner 500, As illustrated in FIG. 1 or FIG. 3, other portions except for the outside air suction port 210, the inside air suction hole 220, and the lower discharge port 230, which will be described later, have a closed structure.

The passage formed in the air duct 200 has a predetermined width in which the air filter member 300 to be described later may be installed, and the shape of the air duct 200 may avoid interference with the interior of the cab 100. Can be configured in any suitable form.

Outside air intake 210,

When the air conditioner 500 is operated in the outdoor mode, the air duct 200 facing the side wall panel 110 as illustrated in FIGS. 4A and 4B may allow external air to flow into the air duct 200. It is formed on the upper outer surface, the air in the outside of the cab 100 is formed in the side wall panel 110, the suction hole 111 that can be connected to the outside air intake 210 as shown in Figure 2 and 3 It may be introduced into the air duct 200 through the suction hole 111 and the outside air suction port 210 of the (110).

The outside air suction port 210 and the suction hole 111 are configured to allow the air required for driving the air conditioner 500 to be introduced therein, and the air outside the air duct through the suction hole 111 and the outside air suction port 210. External air inlet 210 and suction hole 111 may be further provided with a hanging net having a frame structure of a straight or lattice form so as to prevent foreign substances from flowing together when entering the 200.

The bet suction port 220,

When the air conditioner 500 is operated in the bet mode, the air inside the cab 100 may be introduced into the air duct 200 so as to face the outside air intake 210 described above with reference to FIGS. 4A and 4B. Is formed on the upper inner surface of the air duct (200).

The diaphragm 240,

As illustrated in FIGS. 3 and 4A and 4B, the inner space constituting the passage of the air duct 200 is horizontally installed inside the air duct 200 so as to be divided into two parts, the upper and the lower parts. The air filter member 300 is installed at a part of the 240.

The installation position of the diaphragm 240 is located at the lower side of the outside air intake 210 and the intake air intake 220, and the outer circumferential sides of the diaphragm 240 are hermetically sealed through the inner surface of the air duct 200 and the like. The internal space of the air duct 200 may be horizontally partitioned horizontally, but the internal space of the air duct 200 may be horizontally inclined and inclined according to the installation form of the diaphragm 240. .

In some sections of the diaphragm 240, the air filter member 300 is detachably installed. For example, the diaphragm 240 is cut to have a predetermined left and right width, and the cut end is opposed to the other end facing each other. Each guide 241 is installed. At this time, the interval of the guide 241 needs to be determined to correspond to the interval between both sides of the air filter member (300).

Both side guides 241 formed on the diaphragm 240 may be detached by sliding the air filter member 300, and at this time, the front and rear widths of the guides 241 corresponding to the left and right upper and lower widths of the air duct 200 As the 250 is provided, the air filter member 300 may be detached from the guide 241 of the diaphragm 240 while entering and exiting through the access hole 250.

In the state where the air filter member 300 is inserted through the access hole 250 and coupled to the guide 241, the air duct 200 is maintained to maintain the airtightness between the front surface of the air filter member 300 and the access hole 250. It is necessary to configure so that the air to move through the connecting portion between the front of the air filter member 300 and the access hole 250 is not leaked.

The air filter member 300 may be configured to be placed horizontally on the passageway of the air duct 200 in accordance with the installation state of the diaphragm 240, but preferably the diaphragm 240 is configured to be placed horizontally and inclined. In order to minimize the accumulation of dust, etc. in the air filter member 300 installed in the).

A handle 310 may be installed at the front portion of the air filter member 300 to allow the air filter member 300 to easily enter and exit through the front access hole 250 of the air duct 200.

In configuring the air filter member 300 to enter and exit through the access hole 250 of the air duct 200, the air filter is manually operated using the handle 310 provided on the front portion of the air filter member 300. Although the member 300 may enter and exit the air duct 200, the air filter member 300 may be moved in and out in a one-touch manner using a locking device that restricts compression and restoration of the spring.

Connection duct 400,

As illustrated in FIGS. 3 and 4A and 4B, the outlet 230 formed in the lower portion of the air duct 200 is connected to the air conditioner 500 installed in the lower portion of the cab 100. The connection portion 230 and the connection portion of the connection duct 400 and the connection duct 400 and the air conditioner 500 are connected to maintain confidentiality.

In connecting the air duct 200 and the air conditioner 500 through the connection duct 400, if a portion of the connection duct 400 is configured as a corrugated pipe 410 affects the installation position of the air duct 200 It is possible to accurately and effectively connect the air duct 200 and the air conditioner 500 without receiving.

Internal and external air blocking member 260,

As illustrated in FIG. 3, the outside air inlet 210 and the inside air inlet 220 of the air duct 200 may be rotatably installed in the air duct 200 so as to be selectively opened and closed.

The internal and external air blocking member 260 corresponds to the shape of the external air intake 210 and the air intake 220 so as to block the outside air intake 210 and the air intake 220 as a whole. 220) is not smaller than the size.

In one embodiment of the internal and external air blocking member 260 according to the contents described above, as the outdoor air intake 210 and the air intake 220 have a rectangular shape, the internal and external air blocking member 260 is configured in the shape of a plate-shaped rectangle. As the upper portion of the internal / external air blocking member 260 is hinged to the upper side of the inner surface of the air duct 200, the upper portion of the internal / external air blocking member 260 which is hinged becomes a rotational center of the internal / external air blocking member 260. It is rotated in both directions with the lower part standing up.

Referring to the operation process of the internal and external air blocking member 260 through FIGS. 4A and 4B, when the lower portion of the internal and external air blocking member 260 is rotated toward the side wall panel 110, the external air intake 210 is formed by the internal and external air blocking member 260. ) Is closed, and when the lower portion of the internal and external air blocking member 260 is rotated toward the cab 100, the internal air intake air inlet 220 is closed by the internal and external air blocking member 260.

The internal and external air blocking member 260 may be manually rotated through a manual lever drawn out to the outside of the air duct 200 in a state of being connected to an upper portion that is the center of rotation of the internal and external air blocking member 260. When the upper part, which is the center of rotation of the internal and external air blocking member 260, is connected to the actuator 270 provided on the outside of the air duct 200, the internal and external air blocking member 260 rotates in both directions according to the operation of the actuator 270. While being able to selectively open and close the intake air inlet 220 or the outside air intake 210.

Actuator 270 is configured to operate by receiving an electrical signal according to the internal and external air mode of the air conditioner 500, when the air conditioner 500 is in the betting mode according to the operation of the actuator 270, the outdoor and outdoor air blocking member 260 When the air inlet 210 is closed and the air conditioner 500 is in the external air mode, the internal and external air blocking member 260 closes the internal air intake 220 according to the operation of the actuator 270.

Meanwhile, as illustrated in FIG. 2, the side wall panel 110 is provided with a suction hole 111 to introduce external air into the air duct 200, and when the suction hole 111 is exposed to the outside as it is. Rainwater, dust, and foreign matter can easily enter. Therefore, the outer cover 600 may be coupled to the outer surface of the side wall panel 110 so as to cover the suction hole 111 of the side wall panel 110.

In an embodiment of the outer cover 600 coupled to the side wall panel 110, the outer cover 600 is spaced apart from the outer surface of the side wall panel 110, and both ends and the upper end of the outer cover 600 are coupled to each other. After bending toward the side wall panel 110, the outer surface of the side wall panel 110 is folded to be coupled.

Accordingly, as both sides and the upper side of the side wall panel 110 except the lower side of the side wall are covered by the outer cover 600, rain water, dust, and foreign matter may be prevented from entering the suction hole 111 of the side wall panel 110. The outside air may be introduced into the suction hole 111 of the side wall panel 110 after being introduced through a gap formed by the lower end of the outer surface of the side wall panel 110 and the lower end of the outer cover 600. .

According to an embodiment of the described contents configured as described above, the process of introducing the air inside the cab or the outside of the cab through the air duct and the process of checking or replacing the air filter member installed in the air duct are as follows.

First, when the air conditioner 500 is switched to the outside air mode and the actuator 270 receiving the signal is operated, the lower portion of the internal / outdoor air blocking member 260 is rotated toward the cab 100 as illustrated in FIG. Close the air intake port 220 formed on one side of the upper portion, and the outside air intake 210 formed on the other side of the upper air duct 200 is in an open state, so that the outside air is connected to the side wall panel 110. After being introduced through the lower portion of the outer cover 600, it is introduced into the air duct 200 through the suction hole 111 of the side wall panel 110 and the outside air suction port 210 of the air duct 200.

The outside air introduced into the outside air intake port 210 moves downward along the air duct 200 and is purified through the air filter member 300 installed on the passage of the air duct 200 and then connected to the duct duct. The air conditioner 500 is moved through 400.

When the air conditioner 500 is switched to the bet mode, the actuator 270 that receives the signal is operated in reverse, and the lower portion of the internal / external air blocking member 260 is rotated toward the side wall panel 110 as illustrated in FIG. The outside air intake 210 formed on the other side of the upper portion of the 200 is closed, and the air intake 220 formed on the upper side of the air duct 200 is opened in a state where the air inside the cab 100 is opened. After entering through the air intake 220, the air duct 200 is moved downwards and then purified through the air filter member 300 installed on the passage of the air duct 200, and then connected to the duct 400 Afterwards, the air conditioner 500 is moved.

As such, when the purifying action of the air filter member 300 is repeatedly performed for a long time, the purifying ability of the air filter member 300 is lowered. Therefore, the air filter member 300 having the reduced purifying capacity needs to be replaced after inspection.

Therefore, when checking or replacing the air filter member 300, the user of the air filter member 300 that is exposed through the front entrance hole 250 of the air duct 200 in the state that the door of the cab 100 is opened. Pulling the handle 310, the air filter member 300 is separated from the guide 241 inside the air duct 200, the air filter member 300 through the front entrance hole 250 of the air duct 200 Can be withdrawn to the outside.

And after checking the contamination state of the air filter member 300 drawn out of the air duct 200, if the contamination is severe, remove the new air filter member to prepare a front access hole 250 of the air duct 200 It may be inserted through the guide 241 located inside the air duct 200.

In the detailed description of the contents described above, the method related to the specific embodiments has been described, but various modifications are possible without departing from the scope of the contents described. Therefore, the scope of the contents described should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

In the construction machine cab according to the description, internal or external air according to the internal and external air modes of the air conditioner is selectively introduced into the air duct through the internal and external air blocking members, and the air introduced into the air duct is purified through the air filter member. After being moved to the air conditioner, the air filter member is configured to be easily entered through the front of the air duct without the use of a tool, and thus the maintenance and management of the air filter member through the ease of inspection and replacement of the air filter member. It is very useful because it can increase efficiency and improve the performance of the air conditioner to keep the cab in a comfortable environment.

Claims (5)

A cab which provides a space for a driver for driving the construction machine and includes at least a plurality of side wall panels; An air duct positioned inside the side wall panel of the door side of the cab to form a passage through which air can be moved downward, and an upper end of the air duct is fixed to the side wall panel to form a closed structure, and an outlet is formed at the bottom of the air duct ; An outside air intake hole connected to a suction hole formed in the side wall panel and formed at an upper outer surface of an air duct so that external air may be introduced into the air duct through the suction hole; An air intake formed in the upper inner surface of the air duct so that air inside the cab may be introduced into the air duct; A diaphragm having an outer circumference coupled to an inner surface of the air duct such that the inner passage of the air duct is divided into upper and lower portions, and a pair of guides spaced apart from each other in a state in which the diaphragm faces each other is installed and the guide It is installed in the air filter member through the front entrance hole of the air duct is installed so that the air moved from the upper to the lower portion of the air duct inner passage is moved through the air filter member; A connection duct connecting the lower outlet of the air duct to the air conditioner; And, The inside of the upper end of the air duct, while the upper side is the center of rotation, the lower side is rotated in both directions, the cab for construction machinery, characterized in that it comprises an internal and external air blocking member for selectively opening and closing the outside air intake or air intake. The method of claim 1, The air filter member installed on the diaphragm is a construction machine cab, characterized in that installed inclined in the interior space of the air duct. The method of claim 1, An outer cover is installed outside the side wall panel so that outside air flows between the side wall panel and the outer cover through the lower side of the outer cover and moves to the suction hole of the side wall panel. . The method of claim 1, The internal and external air blocking member is rotated in connection with an actuator provided on the outside of the air duct, the actuator is a construction machine cab, characterized in that configured to operate in response to the electrical signal according to the internal and external air mode of the air conditioner. The method of claim 1, A cab for construction machines, characterized in that a portion of the connection duct is provided with a corrugated pipe.

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