Observation window and working machine
By incorporating a frame and hinge mechanism within the observation window, along with anti-collision rails and cushioning pads, the problem of the observation window's fragility is solved, thus improving safety and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-07
AI Technical Summary
Observation windows are prone to deformation or even breakage in operating machinery, affecting the safety of the driver and the service life of the machinery.
An observation window was designed, which includes a window body, a frame, and a switching mechanism. By setting a frame and hinge mechanism on the window body, the rigidity and vibration resistance of the window body are enhanced, and the deformation is reduced by the combined force of the switching mechanism and the hatch. At the same time, anti-collision rails and buffer pads are set to disperse the impact force.
It improves the safety and lifespan of the observation window, reduces the risk of deformation and breakage, and enhances safety and sealing during observation.
Smart Images
Figure CN224093314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of observation window technology, specifically to observation windows and operating machinery. Background Technology
[0002] The operator's cab of construction machinery often faces the problem of obstructed visibility. For example, the operator of a road roller often finds it difficult to observe the wheels from their seat. In such cases, the operator needs to leave their seat and lean out to observe the outside situation by opening the hatch. However, the operator lacks protection when the hatch is open, posing a certain degree of danger when observing.
[0003] Some related technologies incorporate openable observation windows on the hatch, allowing the pilot to lean out and observe. Other parts of the hatch provide some protection and obstruction to the pilot's lower body, improving safety during observation. However, to provide sufficient legroom, the observation window is typically made of a single large piece of glass, resulting in insufficient rigidity and making it prone to deformation or even breakage during use. Utility Model Content
[0004] In view of this, the present invention provides an observation window and operating machinery to solve the problem that the observation window is prone to deformation or even breakage.
[0005] In a first aspect, the present invention provides an observation window, comprising a window body, a frame, and a switching mechanism. The window body is rotatably mounted on a hatch and includes a first direction parallel to a rotation axis of the window body and a second direction perpendicular to the rotation axis. The frame includes a bracket mounted on the window body, the bracket including at least a first bracket, a second bracket, and a third bracket. The first bracket is located on the side of the window body near the rotation axis, and the two ends of the first bracket are respectively close to the two ends of the window body in the first direction. The second bracket and the third bracket are respectively connected to the two ends of the first bracket and extend from the side of the window body near the rotation axis to the side of the window body away from the rotation axis. The switching mechanism is mounted on the window body and located between the second bracket and the third bracket in the first direction. The switching mechanism includes a first handle.
[0006] Beneficial effects: When observing the surrounding environment, the driver can open the observation window through the switching mechanism without opening the hatch, which helps improve the safety of personnel during observation; by setting a frame on the window, the window can be supported, improving the rigidity and vibration resistance of the window; and when the observation window is closed, the switching mechanism applies an inward force to the window, and the hatch applies an outward force to the edge of the window, thereby generating a torque that causes the window to bend and deform. The frame is located between the switching mechanism and the edge of the window, enhancing the rigidity on that side, thereby reducing the degree of deformation of the window under stress, so the window is not easy to deform or break.
[0007] In an optional embodiment, a hinge mechanism is further included, comprising a first hinge and a second hinge that are hinged together. The first hinge is disposed on the hatch, and the second hinge is disposed on the window. The second hinge is fixedly connected to the frame.
[0008] Beneficial effects: The observation window rotates on the hatch via a hinge mechanism. When open, the hinge mechanism also supports the weight of the observation window. By fixing the frame to the second hinge, it helps to reduce the force exerted by the frame on the window, reduce the load on the window, and make the window less prone to deformation or breakage.
[0009] In an alternative implementation, a cushioning pad is also included, which is disposed on the first hinge and / or the second hinge.
[0010] Beneficial effects: When the machinery is running, the vibration is transmitted to the observation window through the hinge mechanism. The buffer pad can play a role in damping and cushioning, thereby reducing the vibration of the window and making the window less prone to deformation or breakage.
[0011] In one alternative implementation, the frame is located on the side of the window facing the interior of the control room.
[0012] Beneficial effects: The frame is set on the inside of the window, thus providing a mounting base for other functional structures of the observation window. The weight of the structure located on the frame is mostly transferred to the hinge mechanism through the frame, which helps to reduce the structure directly set on the window, reduce the load on the window, and make the window less prone to deformation or breakage.
[0013] In one alternative embodiment, the frame further includes a crash barrier disposed on the side of the frame away from the window.
[0014] Beneficial effects: For better safety, drivers will move their seats closer to the cabin door and peer through the observation window to observe the outside environment without unfastening their seatbelts. The crash barrier acts as a buffer between the window and the seat, preventing direct collisions when the seat moves. Part of the impact force is distributed to the window through the frame, while the other part is distributed by the hinge mechanism, helping to reduce the impact on the window during a collision and making it less prone to deformation or breakage. Because the crash barrier and the window are spaced apart, leaving a certain safety distance, even if the crash barrier deforms under impact, it is unlikely to directly hit the window, further improving the protective effect of the crash barrier.
[0015] In one alternative embodiment, the frame further includes a second handle disposed on the frame body, the second handle being located on the side of the window near the rotation axis.
[0016] Beneficial effect: The second handle is located on the side of the window closer to the rotation axis, so it has a smaller rotation radius. After the observation window is opened, the driver can pull the second handle from inside the driver's cab to close the observation window, making it more convenient to close the observation window.
[0017] In one alternative implementation, the window is curved in its natural state, with the concave side of the window facing the interior of the control room.
[0018] Beneficial effects: The window is curved, meaning it is pre-bent, which enhances its rigidity and makes it less prone to deformation or breakage. Furthermore, since the concave side faces the inside of the control room, when the observation window is closed, the opening and closing mechanism is fixed to the hatch, causing the edge of the window to deform in the opposite direction to a flat state under the force of the hatch. The window's rebound tendency makes the edge of the window press more tightly against the hatch, improving the sealing effect when closed.
[0019] In an alternative embodiment, a bumper lock is also included, comprising a cooperating lock head and a lock seat, the lock head being disposed on the frame and the lock seat being disposed on the bulkhead of the control room.
[0020] Beneficial effects: When the viewing window is opened to its limit, the lock head and lock seat come into contact with each other, thereby locking the position of the viewing window and preventing it from shaking; the lock head is set on the frame, so that the force generated when the lock head and lock seat collide does not directly act on the window. Part of the force is distributed to the window through the frame, and the other part of the force is distributed by the hinge mechanism, which helps to reduce the impact on the window during collision, making the window less likely to deform or break.
[0021] In one alternative embodiment, the lock base includes an unlocking mechanism located inside the control chamber, the unlocking mechanism being used to release the lock cylinder.
[0022] Beneficial effects: The driver can unlock the observation window by touching the unlocking structure in the control room, which simplifies the unlocking method and makes the observation window more convenient to use.
[0023] Secondly, this utility model also provides a working machine, including an operator's cab, the operator's cab including a bulkhead and a hatch, the hatch being rotatably mounted on the bulkhead, the hatch including a window frame and an observation window provided by this utility model, the observation window being rotatably mounted on the window frame.
[0024] Beneficial effects: The working machinery provided by this utility model includes the observation window provided by this utility model, and therefore has the corresponding beneficial effects brought by the observation window, which will not be elaborated here. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is an exploded view of an observation window according to an embodiment of the present invention.
[0027] Figure 2 This is a partial structural diagram of an operator's cab according to an embodiment of the present invention, showing the state when the observation window and hatch are closed;
[0028] Figure 3 This is a partial structural diagram of an operator's cab according to an embodiment of the present invention, showing the state when the observation window and hatch are opened to 90°;
[0029] Figure 4 This is a partial structural diagram of an operator's cab according to an embodiment of the present invention, showing the state when the hatch is closed and the observation window is opened 180°;
[0030] Figure 5 This is a partial structural schematic diagram of a control room according to an embodiment of the present utility model, showing the observation window and hatch from the perspective of the inside of the control room. At this time, the hatch is closed and the observation window is opened 180°.
[0031] Figure 6 This is a side view of an observation window according to an embodiment of the present invention.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Hatch door; 101. Observation window; 1011. Window frame; 10121. First frame; 10122. Second frame; 10123. Third frame; 10124. Crash guardrail; 10125. Second handle; 10126. Support platform; 10131. First handle; 10141. First hinge; 10142. Second hinge; 1015. Buffer pad; 10161. Lock head; 10162. Lock seat; 102. Window frame; 103. Sealing element; 2. Bulkhead. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0035] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "comprising" as used herein may also mean including the plural forms. The terms "comprising," "including," and "having" are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.
[0036] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this application, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "end," "length," "inner," "outer," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.
[0038] In order to meet the observation needs of the operating machinery and at the same time provide a certain degree of safety protection for the driver, the relevant technology will set up an openable observation window 101 on the hatch 1. The driver can move the seat to the vicinity of the hatch 1, open the observation window 101, and lean out through the observation window 101 to observe the surrounding environment.
[0039] During use, the observation window 101 will be affected by factors such as vibration of the operating machinery, impact when opening and closing the observation window 101, and impact of the seat. Since the observation window 101 is generally made of a large piece of glass, it is easily deformed or even broken under the influence of vibration and impact.
[0040] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.
[0041] Reference Figure 1 , Figure 2 , Figure 3According to an embodiment of the present invention, an observation window 101 is provided, including a window body 1011, a frame, and a switching mechanism. The window body 1011 is rotatably mounted on a hatch 1, including a first direction parallel to the rotation axis of the window body 1011 and a second direction perpendicular to the rotation axis. The frame includes a bracket mounted on the window body 1011, and the bracket includes at least a first bracket 10121, a second bracket 10122, and a third bracket 10123. The first bracket 10121 is located near the window body 1011. On one side of the rotating shaft, the two ends of the first frame 10121 are respectively close to the two ends of the window 1011 in the first direction. The second frame 10122 and the third frame 10123 are respectively connected to the two ends of the first frame 10121 and extend from the side of the window 1011 close to the rotating shaft to the side of the window 1011 away from the rotating shaft. The switch mechanism is disposed on the window 1011 and is located between the second frame 10122 and the third frame 10123 in the first direction. The switch mechanism includes a first handle 10131.
[0042] When not in use, the observation window 101 is closed. The switching mechanism locks the observation window 101 to the hatch 1. When observing the surrounding environment, the driver can open the observation window 101 through the first handle 10131 without opening the hatch 1, and lean out of the observation window 101 to observe the outside situation. At this time, other parts of the hatch 1 can protect the driver and help improve the safety of personnel when observing.
[0043] By setting a frame on the window 1011, the window 1011 can be supported, improving its rigidity and vibration resistance. When the observation window 101 is closed, the switching mechanism applies an inward force to the window 1011, and the hatch 1 applies an outward force to the edge of the window 1011, thereby generating a torque that causes the window 1011 to bend and deform. The frame is located between the switching mechanism and the edge of the window 1011, enhancing the rigidity of the side on which it is located, reducing the torque generated by the force, and thus reducing the degree of deformation of the window 1011 under stress. Therefore, the window 1011 is not easy to deform or break.
[0044] In some embodiments, the window 1011 may be made of transparent glass to provide a good field of view even when the observation window 101 is closed. Furthermore, the glass material maintains good strength despite its thinness and large area, meeting the requirements for lightweight design of the observation window 101 and the need for peering in when open. In other embodiments, if the strength requirements are met, the window 1011 may also be made of other transparent materials, such as transparent polymer materials, which will not be elaborated upon here.
[0045] The area enclosed by the first frame 10121, the second frame 10122, and the third frame 10123 can be used for observation. In order to provide a good field of view, in some embodiments, the first frame 10121, the second frame 10122, and the third frame 10123 are positioned near the edge of the window 1011.
[0046] In some embodiments, refer to Figure 1 The first frame 10121, the second frame 10122, and the third frame 10123 are made of square steel and connected together by welding. The square steel provides sufficient strength for the frame, thereby reliably supporting the window 1011. In some embodiments not shown, the first frame 10121, the second frame 10122, and the third frame 10123 may also be made of other profiles, or integrally formed by bending.
[0047] In some embodiments, the observation window 101 further includes a hinge mechanism, which includes a first hinge 10141 and a second hinge 10142 that are hinged together. The first hinge 10141 is mounted on the hatch 1, and the second hinge 10142 is mounted on the window body 1011. The second hinge 10142 is fixedly connected to the frame.
[0048] Understandably, the observation window 101 typically rotates relative to the hatch 1 via a hinge mechanism. When open, the hinge mechanism also supports the weight of the observation window 101. By fixing the frame to the second hinge 10142, most of the frame's weight is directly borne by the hinge mechanism, which helps reduce the force exerted by the frame on the window 1011, lightening the load on the window 1011 and making it less prone to deformation or breakage.
[0049] Optionally, refer to Figure 1 The observation window 101 includes multiple hinge mechanisms spaced apart along the direction of rotation. A first frame 10121 extends in a first direction, and a second hinge 10142 is fixedly connected to the first frame 10121. The multiple hinge mechanisms help to distribute the forces, thereby better connecting the hatch 1 and the observation window 101.
[0050] In some embodiments, the observation window 101 further includes a buffer pad 1015, which is disposed on the first hinge 10141 and / or the second hinge 10142. When the working machinery is running, vibration is transmitted to the observation window 101 through the hinge mechanism. The buffer pad 1015 can play a vibration damping and buffering role, thereby reducing the vibration received by the window 1011 and making the window 1011 less prone to deformation or breakage.
[0051] For example, refer to Figure 1In some embodiments, the frame is located on the side of the window 1011 facing the interior of the control room, and the second hinge 10142 is located on the side of the window 1011 facing the exterior of the control room. Fasteners pass through the second hinge 10142, the window 1011, and the frame, securing the three together. At this time, the buffer pad 1015 is located between the second hinge 10142 and the window 1011, absorbing the vibration transmitted to the window 1011 by the hinge mechanism.
[0052] Of course, besides Figure 1 In addition to the connection method shown for the second hinge 10142, form 1011 and skeleton, the second hinge 10142, form 1011 and skeleton can also be connected together in other ways. In this case, the position of the buffer pad 1015 can also be adjusted accordingly. For example, the buffer pad 1015 may also be located between the second hinge 10142 and the skeleton, which will not be described in detail here.
[0053] Furthermore, in addition to providing cushioning pads 1015 in the hinge mechanism, other stress-bearing parts of the form 1011 can also be provided with cushioning pads 1015. For example, in Figure 1 In the illustrated embodiment, buffer pads 1015 are also provided between the switching mechanism and the window 1011, as well as between the frame and the window 1011, thereby buffering and weakening the vibration transmitted from the switching mechanism and the frame to the window 1011, and providing better vibration reduction protection for the window 1011.
[0054] It is also important to note that, Figure 1 In the illustrated embodiment, the frame is located on the side of the window 1011 facing the interior of the control room. The frame is positioned inside the window 1011, thus providing a mounting base for other functional structures of the observation window 101. The weight of the structures on the frame is mostly transferred to the hinge mechanism through the frame, which helps to reduce the structure directly mounted on the window 1011, reduce the load on the window 1011, and make the window 1011 less prone to deformation or breakage.
[0055] Optionally, refer to Figure 3 and Figure 4 In some embodiments, the frame also includes a crash barrier 10124, which is disposed on the side of the frame away from the window 1011.
[0056] Understandably, for better safety, the driver will move their seat near the door 1 and peer through the observation window 101 to observe the external environment without unfastening their seatbelt. The crash barrier 10124 acts as a barrier between the window 1011 and the seat, preventing a direct collision between the seat and the window 1011 when the seat moves. Part of the force generated by the collision is distributed to the window 1011 through the frame, while the other part is distributed by the hinge mechanism, which helps to reduce the impact on the window 1011 during a collision, making the window 1011 less prone to deformation or breakage.
[0057] Furthermore, since the crash barrier 10124 is set on the side of the frame away from the window 1011, the crash barrier 10124 and the window 1011 are spaced apart to leave a certain safety distance. Even if the crash barrier 10124 is deformed under impact, it is not easy to directly hit the window 1011, which further improves the protective effect of the crash barrier 10124.
[0058] Optionally, refer to Figure 3 and Figure 4 In some embodiments, the frame further includes a second handle 10125, which is mounted on the frame and located on the side of the window 1011 near the rotation axis. Because the second handle 10125 is located on the side of the window 1011 near the rotation axis, it has a smaller radius of rotation. After the observation window 101 is opened, the driver can close the observation window 101 from inside the driver's cab by pulling the second handle 10125, making the closing of the observation window 101 more convenient.
[0059] For example, refer to Figure 1 and Figure 3 The crash barrier 10124 is formed by bending a hollow round tube. One end of the crash barrier 10124 is connected to the third frame 10123, and the other end of the crash barrier 10124 is connected to the first frame 10121. The second handle 10125 is formed by bending a hollow round tube and is installed on the first frame 10121.
[0060] In addition to the crash barrier 10124 and the second handle 10125, other functional structures, such as hanging baskets, can be installed on the frame as needed, which will not be elaborated here.
[0061] In some embodiments, the window 1011 is arc-shaped in its natural state, with the concave side of the window 1011 facing the interior of the control room.
[0062] Window 1011 is curved, meaning it has a pre-bent shape, which enhances its rigidity and makes it less prone to deformation or breakage. Furthermore, referring to... Figure 6The force diagram of window 1011 shown shows that, since the concave side faces the inside of the control room, when the observation window 101 is closed, the switching mechanism is fixed to the hatch 1. The force F1 applied by the first handle 10131 and the force F2 applied by the hatch 1 cause the edge of window 1011 to deform in the opposite direction to a flat state. The tendency of window 1011 to rebound into a bent state makes the edge of window 1011 press more tightly against the hatch 1, improving the sealing effect when closed.
[0063] In some embodiments, the latch includes a locking head 10161 and a locking seat 10162 that cooperate with each other. The locking head 10161 is mounted on the frame, and the locking seat 10162 is mounted on the bulkhead 2 of the control room. When the observation window 101 is opened to its limit position, the locking head 10161 and the locking seat 10162 come into contact with each other, thereby locking the position of the observation window 101 and preventing the observation window 101 from shaking. The locking head 10161 is mounted on the frame, so that the force generated when the locking head 10161 and the locking seat 10162 collide does not directly act on the window 1011. Part of the force is distributed to the window 1011 through the frame, and another part of the force is distributed by the hinge mechanism, which helps to reduce the impact on the window 1011 during a collision, making the window 1011 less prone to deformation or breakage.
[0064] Reference Figure 1 In some embodiments, the frame also includes a support platform 10126, which is disposed on the crash barrier 10124. A lock head 10161 is disposed on the support platform 10126. The window 1011 has a first through hole, and the lock head 10161 extends from the first through hole to the outside of the window 1011.
[0065] Understandably, the bumper lock can use magnetic locking, mechanical locking, or other methods to lock the observation window 101. To enhance the reliability of the lock and prevent the bumper lock from disengaging due to vibration during the operation of the machinery, in some related technologies, the lock head 10161 can engage with the lock seat 10162 to lock the observation window 101. In other words, the bumper lock uses mechanical locking.
[0066] Some mechanically locked latches have a self-locking capability. After engagement, the lock cylinder 10161 cannot disengage from the lock seat 10162 on its own, requiring the driver to manually unlock the lock seat 10162 to release the lock cylinder 10161. In some embodiments, the lock seat 10162 includes an unlocking mechanism located inside the control compartment, which is used to release the lock cylinder 10161. The driver can unlock the lock by touching the unlocking mechanism inside the control compartment, thus simplifying the unlocking method of the observation window 101 and making its use more convenient.
[0067] For example, refer to Figure 1 and Figure 5In some embodiments, the lock seat 10162 is disposed on the inner side of the bulkhead 2. A second through hole is provided on the bulkhead 2 of the control room. The locking structure of the lock seat 10162 is disposed on the side of the lock seat 10162 facing the outside of the control room and exposed in the second through hole. The lock head 10161 can pass through the second through hole and lock the lock seat 10162. The unlocking structure of the lock seat 10162 is disposed on the side of the lock seat 10162 facing the inside of the control room, so as to facilitate operation by the driver.
[0068] It is understood that the specific specifications of the latch lock and the unlocking structure of the unlocking lock base 10162 that can be used in this utility model can be referred to relevant technologies, and will not be repeated here.
[0069] Secondly, this utility model also provides a working machine, including an operator's cab, which includes a bulkhead 2 and a hatch 1. The hatch 1 is rotatably mounted on the bulkhead 2. The hatch 1 includes a window frame 102 and an observation window 101 provided by this utility model. The observation window 101 is rotatably mounted on the window frame 102.
[0070] The working machinery provided by this utility model includes the observation window 101 provided by this utility model, and therefore has the beneficial effects brought by the observation window 101, which will not be described in detail here.
[0071] It is understood that the operating machinery can be a mobile operating vehicle (such as a road roller) or a working vessel, or it can be a non-mobile operating platform (such as a lifting device at a dock). This utility model does not limit this.
[0072] In some embodiments, refer to Figure 4 The hatch 1 also includes a seal 103, which is disposed on the window frame 102 and is used to seal the gap between the window body 1011 and the window frame 102.
[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. An observation window, characterized in that, include: A window (1011) is rotatably mounted on the hatch (1), including a first direction parallel to the axis of rotation of the window (1011) and a second direction perpendicular to the axis of rotation; The frame includes a frame disposed on the window (1011), the frame including at least a first frame (10121), a second frame (10122) and a third frame (10123), the first frame (10121) being located on the side of the window (1011) near the rotation axis, the two ends of the first frame (10121) being close to the two ends of the window (1011) in the first direction, the second frame (10122) and the third frame (10123) being connected to the two ends of the first frame (10121) respectively, and extending from the side of the window (1011) near the rotation axis toward the side of the window (1011) away from the rotation axis; A switching mechanism is disposed on the window (1011) and located between the second frame (10122) and the third frame (10123) in the first direction, the switching mechanism including a first handle (10131).
2. The observation window according to claim 1, characterized in that, It also includes a hinge mechanism, which includes a first hinge (10141) and a second hinge (10142) that are hinged together. The first hinge (10141) is installed on the hatch (1), and the second hinge (10142) is installed on the window (1011). The second hinge (10142) is fixedly connected to the frame.
3. The observation window according to claim 2, characterized in that, It also includes a cushioning pad (1015) disposed on the first hinge (10141) and / or the second hinge (10142).
4. The observation window according to claim 2, characterized in that, The frame is located on the side of the window (1011) facing the interior of the control room.
5. The observation window according to claim 2, characterized in that, The frame also includes a crash barrier (10124), which is located on the side of the frame away from the window (1011).
6. The observation window according to claim 2, characterized in that, The frame also includes a second handle (10125), which is disposed on the frame and located on the side of the window (1011) near the rotation axis.
7. The observation window according to claim 1, characterized in that, The window (1011) is arc-shaped in its natural state, and the concave side of the window (1011) faces the interior of the control room.
8. The observation window according to claim 1, characterized in that, It also includes a bump lock, which includes a lock head (10161) and a lock seat (10162) that cooperate with each other. The lock head (10161) is disposed on the frame, and the lock seat (10162) is used to be disposed on the bulkhead (2) of the control room.
9. The observation window according to claim 8, characterized in that, The lock base (10162) includes an unlocking mechanism located inside the control chamber, the unlocking mechanism being used to release the lock head (10161).
10. A type of operating machinery, characterized in that, Includes an operator's cab, the operator's cab comprising: Bulkhead (2); A hatch (1) is rotatably mounted on the bulkhead (2). The hatch (1) includes a window frame (102) and an observation window (101) as described in any one of claims 1 to 9, the observation window (101) being rotatably mounted on the window frame (102).