An electric opening and closing window device for a cockpit

Abstract

The present invention discloses an electric window opening and closing device for a cockpit, wherein the cockpit includes a cabin body and a flip window, and the electric window opening and closing device includes a guide track, a motor assembly and a rigid chain, wherein the guide track includes a first guide section, a second guide section and an arc section, wherein the first guide section is located above the second guide section; the first end of the flip window is movably mounted on the first guide section; the rigid chain is movably mounted on the guide track; the motor assembly is mounted on the left side of the inner wall of the cabin body and is connected to the rigid chain, so as to drive the flip window to flip through the rigid chain to open and close the front window of the cabin body. The present invention makes good use of the structural characteristics of the cockpit, and the impact on the space of the cockpit can be ignored. The processing technology of the parts used in the present device is simple and the cost is low, and after adding the present device, the original manual operating parts in the cockpit can be greatly reduced, and the cost control is also very obvious while realizing automatic window opening and closing.

Description

Technical Field

[0001] The invention belongs to the field of cockpits, and more specifically, relates to an electric opening and closing window device of a cockpit. Background Art

[0002] Engineering machinery is an important part of the equipment industry. Generally speaking, all mechanical equipment required for earthwork construction, road construction and maintenance, mobile lifting and loading and unloading operations, and comprehensive mechanized construction required for various construction projects are called engineering machinery. It is mainly used in national defense construction projects, transportation construction, energy industry construction and production, mining and other raw material industry construction and production, agriculture, forestry and water conservancy construction, industrial and civil construction, urban construction, environmental protection and other fields.

[0003] At present, in the cockpit of engineering machinery, the opening and closing of the flip window requires manual operation by the operator. Since the flip window itself has a large deadweight, the manual operation consumes a lot of the operator's physical strength, which increases the work intensity. In addition, when closing the flip window, in order to ensure the sealing, the operator needs to provide a large thrust, and then trigger the spring ratchet lock to lock it. After locking, the spring ratchet lock will reset to a certain extent, which will cause the thrust applied to the flip window to weaken, affecting the sealing effect. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides an electric window opening and closing device for a cockpit, which can reduce the workload of the operator while improving the sealing of the flip window, realizing one-touch opening and closing of the flip window, and having sufficient sealing after closing the flip window, thereby solving the problem of high workload when the operator manually opens and closes the flip window and weak sealing after closing the window.

[0005] To achieve the above object, according to the present invention, there is provided an electric window opening and closing device for a cockpit, wherein the cockpit comprises a cabin body and a flip window, and is characterized in that:

[0006] The electric window opening and closing device comprises a guide rail, a motor assembly and a rigid chain, wherein:

[0007] The guide track comprises a first guide section, a second guide section and an arc section connecting the first guide section and the second guide section, the first guide section is located below the second guide section, and the first guide section and the second guide section are respectively installed on the front side and the left side of the inner wall of the cabin;

[0008] The first guide section is movably mounted with a moving member so that the moving member can move up and down along the first guide section, and the moving member is hinged to the first end of the flip window through a first hinge shaft;

[0009] The rigid chain is movably mounted on the guide rail, and the front end of the rigid chain can be bent downward when moving in the arc segment, and a connecting block is installed at the front end of the rigid chain, and the connecting block is hinged to the second end of the flip window through a second hinge shaft, wherein the first hinge shaft and the second hinge shaft are both horizontally arranged and the axes extend in the left-right direction;

[0010] The motor assembly is installed on the left side of the inner wall of the cabin and is connected to the rigid chain so as to drive the flip window to flip through the rigid chain to open and close the front window of the cabin.

[0011] Preferably, it also includes an electric push rod assembly installed on the right side of the inner wall of the cabin, which is used to press on the flip window to make the flip window fit the sealing strip on the window edge of the front window and release the pressure applied to the flip window to allow the flip window to flip.

[0012] Preferably, the electric push rod assembly includes an electric push rod, a connecting rod, a limit rod and a limit pin, the electric push rod and the limit pin are both installed on the right side of the inner wall of the cabin, the output end of the electric push rod is hinged to the first end of the connecting rod through a third hinge shaft, the second end of the connecting rod is hinged to the first end of the limit rod through a fourth hinge shaft, the limit rod is provided with a long hole, the limit pin extends into the long hole, the second end of the limit rod is used to press on the flip window to make the flip window fit the sealing strip on the window edge of the front window and to release the pressure applied to the flip window to allow the flip window to be flipped; wherein, the third hinge shaft and the fourth hinge shaft are both horizontally arranged and the axes extend in the left and right directions.

[0013] Preferably, the electric push rod is a worm gear type electric push rod.

[0014] Preferably, it also includes a window closing micro switch installed on the front side of the inner wall of the cabin, which is used to contact the flip window after the flip window is flipped into place, thereby controlling the motor assembly to stop rotating and allowing the electric push rod assembly to press on the flip window to make the flip window fit the sealing strip on the window edge of the front window.

[0015] Preferably, it also includes a window opening micro switch installed on the inner wall of the cabin, which is used to contact the flip window after the flip window is flipped into place, thereby controlling the motor assembly to stop rotating.

[0016] Preferably, it also includes a limiting block installed on the inner wall of the cabin, which is used to contact the flip window after the flip window is opened and flipped into place to achieve mechanical limiting.

[0017] Preferably, the motor assembly comprises a reduction motor and a reducer connected to an output shaft of the reduction motor, and the reducer is connected to the rigid chain.

[0018] Preferably, the reduction motor is a worm gear reduction motor.

[0019] Preferably, a pinion is installed on the output shaft of the reduction motor, and the reducer includes a large gear and a sprocket coaxially connected together, and the pinion meshes with the large gear to drive the large gear to rotate, thereby driving the sprocket to rotate, and then driving the rigid chain connected to the sprocket to move along the guide track.

[0020] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0021] 1) An electric window opening and closing device of the present invention adopts a motor assembly to drive a rigid chain to drive the flip window to flip. Since the rigid chain has the characteristic of being able to bend only in one direction, under the support of the guide track, the window opening and closing action can be well realized. After closing the window, since the rigid chain can only bend downward, sufficient thrust can be continuously provided to the left side of the flip window to ensure the sealing effect of the flip window and the sealing strip at the front window.

[0022] 2) In the electric window opening and closing device of the present invention, the electric push rod assembly can also continue to provide sufficient thrust after the flip window is closed to ensure the sealing effect of the flip window and the sealing strip at the front window.

[0023] 3) An electric window opening and closing device of the present invention is provided with micro switches at the front and rear ends of the cockpit, which is convenient for realizing automatic window opening and closing control. The window closing position is mechanically limited by the contact between the front end of the cockpit and the flip window, and the window opening position is mechanically limited by the limit block, so as to avoid damage to the micro switch caused by control system failure.

[0024] 4) The present invention makes good use of the structural characteristics of the cockpit, and the impact on the cockpit space is negligible. The processing technology of the parts used in the device is simple and the cost is low. After adding the device, the original manual operating parts in the cockpit can be greatly reduced. While realizing automatic window opening and closing, the cost control is also very obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the rigid chain side of a device for automatically opening and closing a flip window of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the electric push rod side of a device for automatically opening and closing a flip window of the present invention;

[0027] Figure 3 The present invention is a schematic diagram of the structure of the reducer inside the device for automatically opening and closing a flip window.

[0028] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0029] Among them, 1-motor assembly; 2-reducer; 3-rigid chain; 4-electric push rod; 5-push rod assembly; 6-window closing micro switch; 7-window opening micro switch; 8-limit block assembly; 9-flip window; 10-cockpit; 11-connecting rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Reference Figure 1 to Figure 3 , an electric window opening and closing device for a cockpit, the cockpit 10 includes a cabin body and a flip window 9, the electric window opening and closing device includes a guide track 12, a motor assembly and a rigid chain 3, wherein:

[0032] The guide rail 12 includes a first guide section 121, a second guide section 123 and an arc section 122 connecting the first guide section 121 and the second guide section 123, the first guide section 121 is located below the second guide section 123, the first guide section 121 and the second guide section 123 are respectively installed on the front side and the left side of the inner wall of the cabin, the second guide section 123 is installed next to the front window of the cockpit 10, and is arranged in the up and down direction; the second guide section 123 is preferably arranged horizontally, mainly for receiving the rigid chain 3.

[0033] The first guide section 121 is movably mounted with a moving part so that the moving part can move up and down along the first guide section 121. The moving part can be a slider, a roller, a bearing, etc. The first guide section 121 has a limiting effect on the moving part to prevent the moving part from being separated from the first guide section 121. The moving part is hinged to the first end of the flip window 9 through the first hinge shaft. Since the flip window 9 is heavy, an auxiliary rail parallel to the first guide section 121 can be arranged on the right side of the cockpit 10. Another moving part is also installed on the auxiliary rail to hinge the first end of the flip window 9. The auxiliary rail and the first guide section 121 jointly support the first end of the flip window 9 and guide the first end.

[0034] The rigid chain 3 is movably mounted on the guide rail 12, and the front end of the rigid chain 3 can be bent downward when moving in the arc segment 122. A connecting block is installed at the front end of the rigid chain 3, and the connecting block is hinged to the second end of the flip window 9 through a second hinge shaft, wherein the first hinge shaft and the second hinge shaft are both horizontally arranged and the axes extend in the left-right direction, and the second end of the flip window 9 is opposite to the first end of the flip window 9;

[0035] The motor assembly preferably includes a reduction motor 1 and a reducer 2 connected to the output shaft of the reduction motor 1, and the reducer 2 is connected to the rigid chain 3. The motor assembly is installed on the left side of the inner wall of the cabin and is connected to the rigid chain 3, so as to drive the flip window 9 to flip through the rigid chain 3 to open and close the front window of the cabin. When the flip window 9 flips, the first end and the second end of the flip window 9 move along the guide track 12 respectively, and also rotate around the center line of the first hinge shaft and the second hinge shaft respectively.

[0036] Since the rigid chain 3 can only be bent in one direction, and the front end (bendable end) can only be bent downward, the driving section of the rigid chain 3 is arranged in the guide track 12 (most of the driving section is arranged in the second guide section 123), and when the rigid chain 3 moves in the second guide section 123 to push the flip window 9 to operate, the rigid chain 3 basically does not bend, so that the reaction force pushing the flip window 9 is basically all applied to the sprocket of the reducer 2 that cooperates with the rigid chain 3, without generating excessive force on the second section of the guide track 12. When the flip window 9 is closed by sticking to the sealing strip, the rigid chain 3 continuously applies thrust to the left end of the flip window 9 on this side to ensure the sealing here.

[0037] When the flip window 9 is in the closed state, the first end and the second end of the flip window 9 are the lower end and the upper end of the flip window 9 respectively. After the flip window 9 is opened and flipped into place, the flip window 9 is in a nearly horizontal state, the first end of the flip window 9 is the front end close to the front window, and the second end of the flip window 9 is the rear end.

[0038] Furthermore, it also includes an electric push rod assembly installed on the right side of the inner wall of the cabin, which is used to press on the flip window 9 to make the flip window 9 fit the sealing strip on the window edge of the front window and release the pressure applied to the flip window 9 to make the flip window 9 flippable. Since the front end of the rigid chain 3 on the left side of the flip window 9 bends downward to apply pressure to the flip window 9, the left side of the flip window 9 can be in contact with the sealing strip and pressed tightly, and under the action of the flip window 9's own weight, the sealing strip on the upper right corner of the flip window 9 will not be pressed tightly, so it is necessary to apply pressure to the right end of the flip window 9, especially the upper right corner, to press the sealing strip tightly. Preferably, the electric push rod assembly includes an electric push rod 4, a connecting rod 11, a limit rod 5 and a limit pin, the electric push rod 4 and the limit pin are both installed on the right side of the inner wall of the cabin, the output end of the electric push rod 4 is hinged to the first end of the connecting rod 11 through a third hinge shaft, the second end of the connecting rod 11 is hinged to the first end of the limit rod 5 through a fourth hinge shaft, the limit rod 5 is provided with a long hole, the limit pin extends into the long hole, and two limit pins are preferably provided so that the limit rod can move linearly along its longitudinal direction, the second end of the limit rod 5 is used to press on the flip window 9 to make the flip window 9 fit the sealing strip on the window edge of the front window and release the pressure applied to the flip window 9 to make the flip window 9 flip; wherein the third hinge shaft and the fourth hinge shaft are both horizontally arranged and the axis extends in the left and right direction. Through the cooperation of the connecting rod 11, the limit rod 5, etc., the stroke of the electric push rod 4 can be extended, and it is also convenient to arrange the electric push rod 4 in the cockpit 10.

[0039] Furthermore, the electric push rod 4 is a worm-gear type electric push rod, and the reduction motor 1 is a worm-gear type reduction motor 1. The reduction motor 1 has a self-locking function, and in the process of driving the flip window 9 through the rigid chain 3, the real-time locking of the flip window 9 position and the locking and holding function after power failure can be realized. The electric push rod 4 also has a self-locking function, and when the flip window 9 is sealed by driving the push rod mechanism, the locking and holding function after power failure can be realized.

[0040] Furthermore, the present invention also includes a window closing micro switch 6 installed on the front side of the inner wall of the cabin, which is used to contact the flip window 9 after the flip window 9 is flipped and closed, thereby controlling the motor assembly to stop rotating and allowing the electric push rod assembly to move to press on the flip window 9 so that the flip window 9 fits the sealing strip on the window edge of the front window.

[0041] Furthermore, it also includes a window opening micro switch 7 installed on the inner wall of the cabin, which is used to contact the flip window 9 after the flip window 9 is opened and flipped into place, thereby controlling the motor assembly to stop rotating.

[0042] Furthermore, it also includes a limit block 8 installed on the inner wall of the cabin. The limit block 8 assembly serves as a mechanical limit in the window opening process. When the flip window 9 triggers the window opening micro switch, the flip window 9 contacts the limit block 8 to avoid damage to the equipment caused by the continued operation of the flip window 9 when the control system fails.

[0043] Furthermore, the reduction motor 1 is connected to the reducer 2 through a gear transmission mechanism, which includes a pinion and a gear. The pinion is installed on the output shaft of the reduction motor 1, and the reducer 2 includes a gear and a sprocket coaxially connected together. The pinion is meshed with the gear to drive the gear to rotate, thereby driving the sprocket to rotate, and then driving the rigid chain 3 connected to the sprocket to move along the guide track 12.

[0044] During the window opening process, the push rod of the electric push rod 4 extends to the upper limit position, and the connecting rod 11 connected thereto drives the limit rod 5 to run to the lower limit position. The limit rod 5 is separated from the flip window 9 to release the pressure restriction on the flip window 9, and the flip window 9 can be flipped. The motor assembly drives the rigid chain 3 to move, thereby dragging the first end of the flip window 9 to move upward along the first guide section 121 and the second end of the flip window 9 to move toward the rear end of the cockpit 10 along the arc section 122 and the second guide section 123 in turn, until the second end triggers the window opening microswitch at the rear end, thereby opening the window in place.

[0045] During the window closing process, the motor assembly drives the rigid chain 3 to move, thereby pushing the first end of the flip window 9 to move downward along the first guide section 121 and the second end of the flip window 9 to move toward the front end of the cockpit 10 along the second guide section 123 and the arc section 122 in sequence, until the flip window 9 triggers the window closing microswitch, and then the electric push rod 4 drives the limit rod 5 to move to the upper limit position to contact the flip window 9 to press the upper right corner of the flip window 9, so that the flip window 9 contacts the sealing strip of the front window, completely closing the front window, and realizing the window closing action.

[0046] The electric window opening and closing device has the characteristics of simple structure, low cost, small space occupation, strong practicality, high safety and reliability, and is suitable for wide promotion and use.

[0047] It should be understood that the above are many different embodiments or examples of different features of the present embodiment. The specific examples of components and arrangements described above are to simplify the description of the embodiments. Of course, these are only examples and are not intended to limit specific implementations. For example, component sizes are not limited to the disclosed ranges or values, but can be determined based on process conditions and / or desired properties of the device.

[0048] Furthermore, in the description, a first feature is formed above or on a second feature, which may include an embodiment in which the first feature and the second feature are formed in direct contact. This may also include an embodiment in which an additional feature may be formed by inserting the first feature and the second feature, so that the first feature and the second feature may not be in direct contact. For simplicity and clarity of description, various features may be drawn arbitrarily at different scales.

[0049] Furthermore, spatially relative terms, such as “below,” “lower,” “above,” “higher,” etc., may be used herein to conveniently illustrate the relationship between an element or a feature and another (other) elements or features as shown in the drawings.

[0050] These spatially relative terms are intended to encompass different orientations of the device during use or operation, in addition to the orientations depicted in the figures. The device may be oriented in different ways (e.g., rotated 90 degrees or at other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0051] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric window opening and closing device for a cockpit, the cockpit comprising a cabin body and a flip window, characterized in that: The electric window opening and closing device comprises a guide rail, a motor assembly and a rigid chain, wherein: The guide track comprises a first guide section, a second guide section and an arc section connecting the first guide section and the second guide section, the first guide section is located below the second guide section, and the first guide section and the second guide section are respectively installed on the front side and the left side of the inner wall of the cabin; The first guide section is movably mounted with a moving member so that the moving member can move up and down along the first guide section, and the moving member is hinged to the first end of the flip window through a first hinge shaft; The rigid chain is movably mounted on the guide rail, and the front end of the rigid chain can be bent downward when moving in the arc segment, and a connecting block is installed at the front end of the rigid chain, and the connecting block is hinged to the second end of the flip window through a second hinge shaft, wherein the first hinge shaft and the second hinge shaft are both horizontally arranged and the axes extend in the left-right direction; The motor assembly is installed on the left side of the inner wall of the cabin and is connected to the rigid chain so as to drive the flip window to flip through the rigid chain to open and close the front window of the cabin.

2. The electric window opening and closing device of a cockpit according to claim 1, characterized in that: It also includes an electric push rod assembly installed on the right side of the inner wall of the cabin, which is used to press on the flip window to make the flip window fit the sealing strip on the window edge of the front window and release the pressure applied to the flip window to allow the flip window to flip.

3. The electric window opening and closing device of a cockpit according to claim 2, characterized in that: The electric push rod assembly includes an electric push rod, a connecting rod, a limit rod and a limit pin, the electric push rod and the limit pin are both installed on the right side of the inner wall of the cabin, the output end of the electric push rod is hinged to the first end of the connecting rod through a third hinge shaft, the second end of the connecting rod is hinged to the first end of the limit rod through a fourth hinge shaft, the limit rod is provided with a long hole, the limit pin extends into the long hole, the second end of the limit rod is used to press on the flip window to make the flip window fit the sealing strip on the window edge of the front window and to release the pressure applied to the flip window to allow the flip window to be flipped; wherein, the third hinge shaft and the fourth hinge shaft are both horizontally arranged and the axes extend in the left and right directions.

4. The electric window opening and closing device of a cockpit according to claim 3, characterized in that: The electric push rod is a worm gear type electric push rod.

5. The electric window opening and closing device for a cockpit according to any one of claims 2 to 4, characterized in that: It also includes a window closing micro switch installed on the front side of the inner wall of the cabin, which is used to contact the flip window after the flip window is flipped into place, thereby controlling the motor assembly to stop rotating and allowing the electric push rod assembly to move to press on the flip window so that the flip window fits the sealing strip on the window edge of the front window.

6. The electric window opening and closing device for a cockpit according to claim 1, characterized in that: It also includes a window opening micro switch installed on the inner wall of the cabin, which is used to contact the flip window after the flip window is flipped into place, thereby controlling the motor assembly to stop rotating.

7. The electric window opening and closing device for a cockpit according to claim 6, characterized in that: It also includes a limiting block installed on the inner wall of the cabin, which is used to contact the flip window after the flip window is opened and flipped into place to achieve mechanical limiting.

8. The electric window opening and closing device for a cockpit according to claim 1, characterized in that: The motor assembly includes a reduction motor and a reducer connected to an output shaft of the reduction motor, and the reducer is connected to the rigid chain.

9. The electric window opening and closing device for a cockpit according to claim 8, characterized in that: The reduction motor is a worm gear reduction motor.

10. The electric window opening and closing device of a cockpit according to claim 8, characterized in that: A pinion is mounted on the output shaft of the reduction motor, and the reducer comprises a large gear and a sprocket coaxially connected together, and the pinion meshes with the large gear to drive the large gear to rotate, thereby driving the sprocket to rotate, and further driving the rigid chain connected to the sprocket to move along the guide track.

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