Elevator car roof system

Abstract

An elevator car roof system comprises a car roof plate with an air outlet, a cross flow fan and a fan support, the fan support comprises two guide rail plates and a sliding frame, the two guide rail plates are fixed to the upper surface of the car roof plate and located on the two sides of the width of the air outlet, and the sliding frame is locked on the two guide rail plates through a plurality of locking assemblies and used for installing the cross flow fan. The cross flow fan is positioned right above the air outlet; the sliding frame can descend to a replacement position in the guide direction of the guide rail plate when the locking assembly is in an unlocking state, and the cross flow fan is located below the air outlet when the sliding frame is in the replacement position. And the limiting assembly is used for keeping the sliding frame at the replacement position. When the draught fan breaks down, a worker can be allowed to stand in the lift car to directly replace the draught fan, the replacement process is more convenient and faster, meanwhile, the draught fan can be replaced under the condition that operation of an elevator is not interrupted, and it can be guaranteed that the draught fan does not occupy the space of the lift car when used normally.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator car top system. Background Technology

[0002] As a key component at the top of the elevator car, the fan plays a vital role. It is responsible for circulating the air inside the car, ensuring continuous airflow, thereby preventing the air from becoming stale and producing odors, and creating a fresher and more comfortable riding environment for passengers.

[0003] Currently, fans are typically installed on the top surface of the car roof to reduce the space occupied inside the car, as shown in the fan in authorization notice number CN 220467250 U. However, this layout also brings certain problems: if the fan malfunctions, maintenance personnel need to climb onto the car roof to replace it, which is quite inconvenient. At the same time, the elevator must be shut down during maintenance, which undoubtedly affects the normal operation of the elevator. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an elevator car top system that allows workers to directly replace the fan while standing inside the car when the fan malfunctions. This makes the replacement process more convenient, and the fan replacement can be completed without interrupting elevator operation, while also ensuring that the fan does not occupy car space when in normal use.

[0005] An elevator car top system includes a car top panel with an air outlet, a crossflow fan, and a fan bracket. The fan bracket includes two guide rails fixed to the upper surface of the car top panel and located on both sides of the width of the air outlet, and a sliding frame locked to the two guide rails by multiple locking components for mounting the crossflow fan. The crossflow fan is located directly above the air outlet. When the locking components are unlocked, the sliding frame can descend to a change position along the guide direction of the guide rails. When the sliding frame is in the change position, the crossflow fan is located below the air outlet. The system also includes a limiting component for holding the sliding frame in the change position.

[0006] Preferably, the sliding frame includes two sliding side plates, which are slidably mounted on the two guide rails respectively. The two sliding side plates are fixedly connected to a fan mounting plate for mounting the crossflow fan. The sliding side plates are positioned above the air outlet when the crossflow fan is above the air outlet.

[0007] Preferably, the guide rail plate is provided with a plurality of vertical sliding grooves, and the sliding side plate is provided with a slider part that cooperates with the plurality of vertical sliding grooves.

[0008] Preferably, the limiting component includes a hook rod, which includes a horizontal hook portion for hooking the edge of the air outlet and a vertical portion connected to the horizontal hook portion and connected to the sliding frame.

[0009] Preferably, the guide rail plate has multiple reinforcing plates on its side to support it.

[0010] Preferably, the locking assembly includes a locking rod, a locking rod mounting seat fixed to the surface of the car roof panel and through which the locking rod passes, a spring sleeved on the locking rod, and a spring seat on the locking rod. One end of the spring abuts against the locking rod mounting seat, and the other end abuts against the spring seat. The sliding frame is provided with a locking hole that mates with the locking rod.

[0011] Preferably, the locking rod further includes a threaded section located on the other side of the guide plate relative to the spring seat, and a locking nut is provided on the threaded section to lock the locking rod.

[0012] Preferably, the locking rod mounting base has a locking rod through hole for the locking rod to pass through, and the locking rod through hole has an anti-rotation angle to prevent the locking rod from rotating.

[0013] Preferably, the locking rod further includes a force-bearing inclined surface at its end, and the sliding frame is provided with a wedge portion that forms a wedge structure with the force-bearing inclined surface.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. This utility model installs a fan on a sliding frame. When the sliding frame descends to the replacement position, the crossflow fan descends from directly above the air outlet to directly below the air outlet. The sliding frame is held in the replacement position by a limiting component. Compared with the prior art, when the fan malfunctions, it allows workers to stand inside the elevator car to directly replace the fan, making the replacement process more convenient. At the same time, the fan replacement can be completed without interrupting the elevator operation. Furthermore, when the fan is in normal use, it is located directly above the air outlet, ensuring that it does not occupy the elevator car space.

[0016] 2: This utility model is a limiting component for keeping the sliding frame in the replacement position. Its structure includes a horizontal hook part and a vertical part connected to the bottom of the horizontal hook part and connected to the sliding frame. When the sliding frame descends a certain distance, the horizontal hook part will hook the edge of the air outlet, so that the sliding frame can be kept in the replacement position without manual operation, making the fan replacement process more convenient. Attached Figure Description

[0017] Figure 1 This is a simplified structural diagram of the first type of elevator car top system;

[0018] Figure 2 for Figure 1 A partial view;

[0019] Figure 3 for Figure 1 Top view of the car's roof;

[0020] Figure 4 for Figure 1 Schematic diagram of the middle limit component;

[0021] Figure 5 This is a simplified structural diagram of the second type of elevator car top system;

[0022] Figure 6 This is a diagram showing the fit between the locking rod and the locking rod mounting base in the second type of elevator car top system. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example:

[0025] Appendix Figure 1-4 An elevator car top system is presented, comprising key components such as a car top panel 1, a crossflow fan 2, and a fan bracket 3. The car top panel 1 has a prominent air outlet 11, which is crucial for air circulation throughout the system. The fan bracket 3 consists of two guide rails 31 and a sliding frame 32. The two guide rails 31 are firmly fixed to the upper surface of the car top panel 1 and are located on either side of the width of the air outlet 11. The crossflow fan 2 is mounted on the sliding frame 32 using multiple fasteners 2-1 and is stably locked to the two guide rails 31 by multiple locking components 33. Notably, when the sliding frame 32 is locked by the locking components 33, the crossflow fan 2 is positioned directly above the air outlet 11, ensuring efficient airflow from the air outlet 11 without obstructing space inside the car.

[0026] The locking component 33 can be a common structure such as a fastening screw. In this embodiment, the locking component 33 specifically includes components such as a locking rod 331, a locking rod mounting base 332, and a spring 333. The locking rod mounting base 332 is fixed to the upper surface of the car roof plate 1 for the locking rod 331 to pass through. The locking rod 331 is fitted with a spring 333, and a spring seat 3311 is also provided on it. One end of the spring 333 abuts against the locking rod mounting base 332, and the other end abuts against the spring seat 3311. The sliding frame 32 is equipped with a locking hole 320 that cooperates with the locking rod 331 to ensure the realization of the locking function.

[0027] The sliding frame 32 can be a frame composed of various rods. In this embodiment, the sliding frame 32 includes two sliding side plates 321. The two sliding side plates 321 are slidably mounted on two guide rail plates 31. Specifically, the guide rail plates 31 are designed with multiple vertical grooves 311, and the sliding side plates 321 are equipped with sliders 3211 corresponding to these vertical grooves 311, thereby achieving sliding engagement. The two sliding side plates 321 are fixedly connected to a fan mounting plate 322 for mounting the crossflow fan 2. When the crossflow fan 2 is above the air outlet 11, the sliding side plates 321 are also completely above the air outlet 11, preventing it from extending into the car and affecting the aesthetics of the car.

[0028] When the locking component 33 is in the unlocked state, that is, when the locking rod 331 exits the locking hole 320, the sliding frame 32 can freely descend along the guide direction of the guide plate 31 and descend to a position, which we can call the change position. Of course, there are special requirements for this special change position. When the sliding frame 32 descends to the change position, the crossflow fan 2 descends accordingly below the air outlet 11. At the same time, the system is also equipped with a limiting component 34, which is used to keep the sliding frame 32 at the change position when it descends to the change position. The limiting component 34 can be a pin that passes through the sliding frame 32 and is inserted into the guide rail plate 31. In this embodiment, the limiting component 34 includes a hook rod, which includes a horizontal hook portion 341 and a vertical portion 342 that is connected to the bottom of the horizontal hook portion 341 and connected to the sliding frame 32. When the sliding frame 32 descends a certain distance, the horizontal hook portion 341 will hook the edge of the air outlet 11, so that the sliding frame 32 can be kept at the replacement position without manual operation. In order to meet the requirement that the crossflow fan 2 descends to the air outlet 11 at the same time as the sliding frame 32 descends to the replacement position, the distance between the horizontal hook portion 341 and the crossflow fan 2 must be designed to be greater than the thickness of the car top plate.

[0029] This design allows workers to replace the fan directly from inside the elevator car when it malfunctions, instead of having to climb onto the car roof as required by existing technology. This makes the replacement process more convenient and allows the fan to be replaced without interrupting elevator operation.

[0030] In this embodiment, the guide rail plate 31 is provided with multiple reinforcing plates 35 on its side to support the guide rail plate 31, thereby improving the stability of the guide rail plate 31 and thus improving the stability of the fan.

[0031] In this embodiment, as Figure 5As shown, the locking rod 331 also includes a threaded section 3312, which is located on the other side of the guide plate 31 opposite to the spring seat 3311. A locking nut 334 is installed on the threaded section 3312 to fix the locking rod 331, thus eliminating the possibility of the locking rod 331 accidentally coming out of the locking hole 320, thereby ensuring the stability of the crossflow fan 2 after installation.

[0032] like Figure 6 As shown, the locking rod mounting base 332 has a locking rod through hole for the locking rod 331 to pass through. This locking rod through hole has at least one anti-rotation angle 3321 to prevent the locking rod from rotating. This structural design ensures that the locking rod 331 will not rotate when the locking nut 334 is tightened, thereby ensuring that the fastening function of the locking nut 334 is realized.

[0033] In this embodiment, as Figure 5 As shown, the locking rod 331 is also provided with a force-bearing inclined surface 3313 at its end. Specifically, the top of the sliding side plate 321 of the sliding frame 32 is provided with an inclined wedge part 323 that forms an inclined wedge structure with it. This structural design allows the sliding frame 32 to be pushed upward along the guide direction of the guide rail plate 31 when the fan replacement operation is completed in the car. During the operation, the sliding frame 32 automatically forces the locking rod 331 to move to both sides until the locking hole 320 is aligned with the locking rod 331. The locking rod 331 is inserted into the locking hole 320 under the action of the spring, and the locking is completed. During the entire operation, the locking action of the sliding frame 32 is simple and smooth, which greatly improves the efficiency of fan replacement.

[0034] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. An elevator car top system, comprising a car top panel (1) with an air outlet (11), a crossflow fan (2), and a fan bracket (3), characterized in that, The fan bracket (3) includes two guide rails (31) fixed to the upper surface of the car roof plate (1) and located on both sides of the width of the air outlet (11), and a sliding frame (32) locked to the two guide rails (31) by a plurality of locking components (33) for mounting the crossflow fan (2). The crossflow fan (2) is located directly above the air outlet (11). When the locking components (33) are in the unlocked state, the sliding frame (32) descends along the guide direction of the guide rails (31) to a replacement position. When the sliding frame (32) descends to the replacement position, the crossflow fan (2) descends directly below the air outlet (11). It also includes a limiting component (34) for holding the slide (32) in the changed position.

2. The elevator car top system according to claim 1, characterized in that, The sliding frame (32) includes two sliding side plates (321), which are slidably mounted on the two guide rails (31). The two sliding side plates (321) are fixedly connected to a fan mounting plate (322) for mounting the crossflow fan (2). The sliding side plates (321) are above the air outlet (11) when the crossflow fan (2) is above the air outlet (11).

3. The elevator car top system according to claim 2, characterized in that, The guide rail plate (31) is provided with a plurality of vertical slide grooves (311), and the sliding side plate (321) is provided with a slider part (3211) that cooperates with the plurality of vertical slide grooves (311).

4. The elevator car top system according to claim 1, characterized in that, The limiting component (34) includes a hook rod, which includes a horizontal hook portion (341) for hooking the edge of the air outlet (11) and a vertical portion (342) connected to the horizontal hook portion (341) and connected to the sliding frame (32).

5. An elevator car top system according to claim 1, characterized in that, The guide rail plate (31) is provided with multiple reinforcing plates (35) on its side to support the guide rail plate (31).

6. The elevator car top system according to claim 1, characterized in that, The locking assembly (33) includes a locking rod (331) and a locking rod mounting seat (332) fixed to the upper surface of the car roof plate (1) for the locking rod (331) to pass through. A spring (333) is sleeved on the locking rod (331), and a spring seat (3311) is also provided on the locking rod (331). One end of the spring (333) abuts against the locking rod mounting seat (332), and the other end abuts against the spring seat (3311). The sliding frame (32) is provided with a locking hole (320) that cooperates with the locking rod (331).

7. An elevator car top system according to claim 6, characterized in that, The locking rod (331) also includes a threaded section (3312), which is located on the other side of the guide plate (31) relative to the spring seat (3311). A locking nut (334) for locking the locking rod (331) is provided on the threaded section (3312).

8. An elevator car top system according to claim 7, characterized in that, The locking rod mounting base (332) has a locking rod through hole for the locking rod (331) to pass through, and the locking rod through hole has an anti-rotation angle (3321) to prevent the locking rod (331) from rotating.

9. An elevator car top system according to claim 8, characterized in that, The locking bar (331) also includes a force-bearing inclined surface (3313) at its end, and the sliding frame (32) is provided with a wedge portion (323) that forms a wedge structure with the force-bearing inclined surface (3313).

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