Ventilation structure of elevator ceiling

Abstract

The utility model relates to the technical field of elevators, and discloses a ventilation structure of an elevator ceiling, which comprises a box-shaped pod and a fan, and a first square transition air pipe is sleeved in the top of the box-shaped pod. The first composite electromagnetic valve pipe, the first square transition air pipe, the second composite electromagnetic valve pipe, the filter screen assembly and the hollow air conveying plate are arranged to form an automatic air output structure, and the backflow electromagnetic valve pipe, the semi-open hollow sleeve plate and the dust collection assembly are arranged to form a reverse airflow cleaning structure. After the filter screen assembly is combined with a fan and a box-shaped pod for use, the conveyed air can be filtered while automatic air conveying is carried out, and after the filter screen assembly is blocked, an electromagnetic valve in a first composite electromagnetic valve pipe and an electromagnetic valve in a second composite electromagnetic valve pipe can be closed, and an electromagnetic valve in a backflow electromagnetic valve pipe can be opened; and the fan enables external air to pass through the backflow electromagnetic valve pipe and the semi-open hollow sleeve plate to carry out reverse air blowing cleaning on the filter screen assembly from bottom to top.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a ventilation structure for an elevator ceiling. Background Technique

[0002] As a kind of elevator, a lift elevator is usually a vertical lift powered by an electric motor, equipped with a box-shaped cabin, and is used for people to take or carry goods in multi-story buildings. When in use, it runs between at least two columns of vertical or inclined rigid guide rails with an inclination angle less than 15°. The cabin size and structure form are convenient for passengers to enter and exit or load and unload goods. During the use process, it is efficient and flexible, and has now become one of the important means of transportation for urban high-rise residential buildings.

[0003] At present, due to the relatively narrow internal space of the box-shaped cabin of the lift elevator, in order to ensure the smooth breathing of passengers and avoid discomfort during use, the prior art usually uses a ventilation structure with a filtering effect at the top of the box-shaped cabin to increase the exchange speed of the air flow in the box-shaped cabin and the external space. However, as the use time prolongs, the use effect of the filtering components in the ventilation structure will gradually decrease. If not cleaned in time, blockage will occur. If cleaned periodically manually, although the problem can be solved, the overall ventilation structure needs to be disassembled for cleaning, and the operation is very troublesome. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a ventilation structure for an elevator ceiling, which solves the problems put forward in the above background technique.

[0005] The utility model provides the following technical scheme: A ventilation structure for an elevator ceiling, including a box-shaped cabin and a fan. A first square transition air duct is sleeved inside the top of the box-shaped cabin. A support rod is installed between the surface of the fan and the top of the first square transition air duct. A first composite solenoid valve pipe is installed between the bottom air outlet of the fan and the top of the first square transition air duct, and the space is connected through the first composite solenoid valve pipe;

[0006] A filter screen assembly is sleeved inside the middle part of the first square transition air duct. An anti-air-blowing channel is arranged between one side of the top of the first composite solenoid valve pipe and one side of the bottom of the first square transition air duct, and the bottom of the anti-air-blowing channel is located outside the bottom of the filter screen assembly. The other side of the top of the first square transition air duct is provided with a dust collection assembly communicated with its own space, and the dust collection assembly is located outside the top of the filter screen assembly;

[0007] A second composite solenoid valve tube and a hollow air supply plate are provided at the bottom of the first square transition air duct, and the second composite solenoid valve tube is installed between the bottom of the first square transition air duct and the top of the hollow air supply plate so that the internal space of the first square transition air duct communicates with the internal space of the hollow air supply plate, and a filter groove is provided in the bottom structure of the hollow air supply plate.

[0008] Preferably, the filter screen assembly is composed of a support frame plate and a filter screen nested in the support frame plate, and the support frame plate is fixedly sleeved on the inner side of the middle part of the first square transition air duct.

[0009] Selected, the back-air blowing channel includes a reflux solenoid valve tube and a semi-open hollow sleeve. The two ends of the reflux solenoid valve tube are respectively fixedly sleeved on the top inner side of one side of the semi-open hollow sleeve and fixedly sleeved on the top inner side of one side of the first composite solenoid valve tube. The other side of the semi-open hollow sleeve is fixedly sleeved on one side of the bottom of the first square transition air duct and is located on the bottom outer side of the filter assembly. The back-air blowing channel cooperates with the first composite solenoid valve tube and the second composite solenoid valve tube to adjust, so as to realize automatic air blowing cleaning of the filter assembly from bottom to top, and then perform automatic blockage clearing treatment.

[0010] The dust collecting assembly includes a dust collecting frame plate and a transition baffle. A yield groove aligned with the dust collecting frame plate is opened on the other side of the top of the first square transition air duct. The transition baffle is fixedly sleeved on the inside of a side of the dust collecting frame plate away from the first square transition air duct. The front and rear ends of the dust collecting frame plate are fixedly connected with mounting sleeves. The mounting sleeve is installed between the side structure on the other side of the first square transition air duct by screws, which is convenient for reciprocating installation and disassembly.

[0011] Preferably, a transition filter is fixedly sleeved on the inner side of the bottom of the dust collecting frame, and the transition filter is in an inclined state and cooperates with a transition baffle to form a dust storage buffer space on the side of the dust collecting frame away from the first square transition air duct, thereby facilitating the centralized collection of filtered dust.

[0012] Preferably, the structure of the first composite solenoid valve tube is the same as that of the second composite solenoid valve tube, and the top and bottom of the first composite solenoid valve tube are respectively an inverted conical tubular structure and an upright conical tubular structure, thereby realizing concentrated output of airflow and large-area diffusion.

[0013] Selectedly, a protective filter is fixedly connected between the top of the side of the hollow air supply plate and the bottom of the side corresponding to the first square transition air duct for peripheral protection, and the number of filter slots at the bottom of the hollow air supply plate is not less than two and is equidistantly distributed at the bottom of the hollow air supply plate, thereby achieving the use effect of secondary filtration.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The automatic air output structure of the present utility model is composed of a first composite solenoid valve pipe, a first square transition air duct, a second composite solenoid valve pipe, a filter screen assembly, and a hollow air delivery plate. The reverse air flow cleaning structure is composed of a return solenoid valve pipe, a semi-open hollow sleeve plate, and a dust collection assembly. After the above two structures are combined with a fan and a box-shaped nacelle, the box-shaped nacelle can be automatically ventilated. While fully ensuring the air circulation speed between the inside of the box-shaped nacelle and the outside air, the conveyed air will be filtered to ensure the operation effect. After the filter screen assembly is used for a certain period of time, the solenoid valve in the first composite solenoid valve pipe can be closed, the solenoid valve in the second composite solenoid valve pipe can be closed, and the solenoid valve in the return solenoid valve pipe can be opened, and the fan can be started to make the fan convey the outside air through the return solenoid valve pipe and the semi-open hollow sleeve plate to the inside of the bottom of the first square transition air duct, and then the filter screen assembly can be cleaned by reverse air blowing from bottom to top to ensure the sustainable use effect of the filter screen assembly.

[0016] 2. The dust collection assembly in the reverse air flow cleaning structure set by the present utility model can secondarily filter and temporarily store the dust blown out of the filter screen assembly by reverse air blowing. And the dust collection assembly and the first square transition air duct are connected in a detachable installation manner, and subsequent multiple replacements and cleanings of the dust collection assembly itself can be maintained for reuse, with low use cost and flexibility maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a bottom view schematic diagram of the structure of the present utility model;

[0018] Figure 2 It is a top view schematic diagram of the structure of the present utility model;

[0019] Figure 3 It is a cross-sectional view schematic diagram of the first square transition air duct of the structure of the present utility model;

[0020] Figure 4 It is a left view schematic diagram of the first square transition air duct of the structure of the present utility model;

[0021] Figure 5 It is a right view schematic diagram of the first square transition air duct of the structure of the present utility model;

[0022] Figure 6 It is an enlarged schematic diagram of the dust collection assembly of the structure of the present utility model.

[0023] In the figure: 1. Box-shaped nacelle; 2. Fan; 3. First square transition air duct; 4. First composite solenoid valve pipe; 5. Filter screen assembly; 6. Second composite solenoid valve pipe; 7. Hollow air delivery plate; 8. Return solenoid valve pipe; 9. Semi-open hollow sleeve plate; 10. Dust collection assembly; 101. Dust collection frame plate; 102. Transition baffle; 103. Transition filter screen. Detailed implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6 , a ventilation structure for an elevator ceiling, which includes a box-shaped gondola 1 and a fan 2. A first square transition air duct 3 is sleeved inside the top of the box-shaped gondola 1. A support rod is installed between the surface of the fan 2 and the top of the first square transition air duct 3. A first composite solenoid valve pipe 4 is installed between the bottom air outlet of the fan 2 and the top of the first square transition air duct 3, and they are spatially connected through the first composite solenoid valve pipe 4;

[0026] A filter screen assembly 5 is sleeved inside the middle part of the first square transition air duct 3. The filter screen assembly 5 is composed of a support frame plate and a filter screen nested inside the support frame plate. The support frame plate is fixedly sleeved inside the middle part of the first square transition air duct 3. An anti-air-blowing channel is arranged between one side of the top of the first composite solenoid valve pipe 4 and one side of the bottom of the first square transition air duct 3, and the bottom of the anti-air-blowing channel is located outside the bottom of the filter screen assembly 5. The anti-air-blowing channel includes a return solenoid valve pipe 8 and a semi-open hollow sleeve plate 9. The two ends of the return solenoid valve pipe 8 are respectively fixedly sleeved inside the top of one side of the semi-open hollow sleeve plate 9 and fixedly sleeved inside the top of one side of the first composite solenoid valve pipe 4. The other side of the semi-open hollow sleeve plate 9 is fixedly sleeved on one side of the bottom of the first square transition air duct 3 and is located outside the bottom of the filter screen assembly 5. The anti-air-blowing is coordinated with the first composite solenoid valve pipe 4 and the second composite solenoid valve pipe 6 to realize automatic air blowing and cleaning of the filter screen assembly 5 from bottom to top, and then automatic clogging removal treatment;

[0027] A dust collecting assembly 10 communicating with its own space is installed on the other side of the top of the first square transition air duct 3, and the dust collecting assembly 10 is located on the outer side of the top of the filter screen assembly 5, and the dust collecting assembly 10 includes a dust collecting frame plate 101 and a transition baffle 102. A yield groove aligned with the dust collecting frame plate 101 is opened on the other side of the top of the first square transition air duct 3, and the transition baffle 102 is fixedly sleeved on the inside of the side of the dust collecting frame plate 101 away from the first square transition air duct 3. The front and rear ends of the dust collecting frame plate 101 are fixedly connected with a mounting sleeve, and the mounting sleeve and the side structure on the other side of the first square transition air duct 3 are installed by screws, which is convenient for reciprocating installation and disassembly. A transition filter 103 is fixedly sleeved on the inner side of the bottom of the dust collecting frame plate 101, and the transition filter 103 is in an inclined state and cooperates with the transition baffle 102 to form a dust storage buffer space in the side of the dust collecting frame plate 101 away from the first square transition air duct 3, thereby facilitating the centralized collection of filtered dust;

[0028] A second composite solenoid valve tube 6 and a hollow air supply plate 7 are provided at the bottom of the first square transition air duct 3, and the second composite solenoid valve tube 6 is installed between the bottom of the first square transition air duct 3 and the top of the hollow air supply plate 7 and enables the internal space of the first square transition air duct 3 to communicate with the internal space of the hollow air supply plate 7, and a filter groove is provided at the bottom structure of the hollow air supply plate 7;

[0029] The structure of the first composite solenoid valve tube 4 is the same as that of the second composite solenoid valve tube 6, and the top and bottom of the first composite solenoid valve tube 4 are respectively an inverted conical tubular structure and an upright conical tubular structure, thereby realizing concentrated output of airflow and large-area diffusion. A protective filter is fixedly connected between the top of the side of the hollow air supply plate 7 and the bottom of the side corresponding to the first square transition air duct 3 for peripheral protection, and the number of filter slots at the bottom of the hollow air supply plate 7 is not less than two and are equidistantly distributed at the bottom of the hollow air supply plate 7, thereby realizing the use effect of secondary filtration.

[0030] Working principle:

[0031] Embodiment 1

[0032] During the reciprocating lifting process of the box-shaped pod 1, the solenoid valve in the first composite solenoid valve tube 4, the solenoid valve in the second composite solenoid valve tube 6 and the fan 2 are turned on, so that the fan 2 automatically transports the outside air to the inside of the first composite solenoid valve tube 4, and then passes through the filter assembly 5 inside the first square transition air duct 3 and enters the hollow air supply plate 7 through the second composite solenoid valve tube 6. Finally, the air is expanded and output through multiple transition grooves at the bottom of the hollow air supply plate 7, so as to fully ensure the circulation speed of the air inside the box-shaped pod 1 and the outside air.

[0033] Embodiment 2

[0034] During the reciprocating lifting process of the box-shaped pod 1, to ensure the air circulation speed between the air inside the box-shaped pod 1 and the outside air, the steps of the first embodiment can be adopted for operation. After the filter screen assembly 5 has been used for a certain period of time, to avoid clogging of the filter screen assembly 5, during the use interval, the solenoid valve in the first composite solenoid valve pipe 4 can be closed, the solenoid valve in the second composite solenoid valve pipe 6 can be closed, and the solenoid valve in the return solenoid valve pipe 8 can be opened. Then, the fan 2 is started, so that the fan 2 conveys the outside air through the return solenoid valve pipe 8 and the semi-open hollow sleeve plate 9 to the inner side of the bottom of the first square transition air duct 3, and then the filter screen assembly 5 is cleaned by reverse air blowing from bottom to top. The air containing impurities will enter the interior of the dust collection assembly 10. Then, under the filtration of the transition baffle 102 and the shielding of the transition filter screen 103, the air is filtered and output, and the impurities are temporarily retained in the ash storage buffer space;

[0035] After reverse air blowing and cleaning for a certain period of time, the screws between the detachable mounting sleeve plate and the first square transition air duct 3 can be removed, and then the dust collection assembly 10 can be disassembled as a whole. After cleaning the impurities stored in the dust collection assembly 10, it can be reset and locked to the first square transition air duct 3, and that's it.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the filling patterns are only for distinguishing layers and are not subject to any other limitations.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A ventilation structure for an elevator ceiling, comprising a box-shaped pod (1) and a fan (2), characterized in that: A first square transition air duct (3) is mounted inside the top of the box-shaped pod (1); a support rod is installed between the surface of the fan (2) and the top of the first square transition air duct (3); a first composite solenoid valve tube (4) is installed between the bottom air outlet of the fan (2) and the top of the first square transition air duct (3); and the first composite solenoid valve tube (4) is spatially connected to each other through the first composite solenoid valve tube (4); A filter assembly (5) is mounted on the inner side of the middle of the first square transition air duct (3); a reverse air blowing channel is arranged between one side of the top of the first composite solenoid valve tube (4) and one side of the bottom of the first square transition air duct (3); the bottom of the reverse air blowing channel is located outside the bottom of the filter assembly (5); a dust collecting assembly (10) in communication with the first square transition air duct (3) is installed on the other side of the top of the first square transition air duct (3); and the dust collecting assembly (10) is located outside the top of the filter assembly (5); A second composite solenoid valve tube (6) and a hollow air supply plate (7) are provided at the bottom of the first square transition air duct (3), and the second composite solenoid valve tube (6) is installed between the bottom of the first square transition air duct (3) and the top of the hollow air supply plate (7) so as to make the internal space of the first square transition air duct (3) communicate with the internal space of the hollow air supply plate (7), and a filter groove is provided at the bottom structure of the hollow air supply plate (7).

2. The ventilation structure of an elevator ceiling according to claim 1, wherein: The filter screen assembly (5) is composed of a support frame plate and a filter screen nested in the support frame plate, and the support frame plate is fixedly sleeved on the inner side of the middle part of the first square transition air duct (3).

3. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: The reverse air blowing channel comprises a return solenoid valve tube (8) and a semi-open hollow sleeve (9); the two ends of the return solenoid valve tube (8) are respectively fixedly sleeved on the top inner side of one side of the semi-open hollow sleeve (9) and fixedly sleeved on the top inner side of one side of the first composite solenoid valve tube (4); the other side of the semi-open hollow sleeve (9) is fixedly sleeved on one side of the bottom of the first square transition air duct (3) and is located on the bottom outer side of the filter screen assembly (5).

4. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: The dust collecting assembly (10) comprises a dust collecting frame plate (101) and a transition baffle plate (102); a clearance groove aligned with the dust collecting frame plate (101) is provided on the other side of the top of the first square transition air duct (3); the transition baffle plate (102) is fixedly sleeved inside a side of the dust collecting frame plate (101) away from the first square transition air duct (3); the front and rear ends of the dust collecting frame plate (101) are fixedly connected to mounting sleeve plates; the mounting sleeve plates are mounted to the side structure on the other side of the first square transition air duct (3) by means of screws.

5. The ventilation structure of an elevator ceiling according to claim 4, characterized in that: A transition filter (103) is fixedly sleeved on the inner side of the bottom of the dust collecting frame (101), and the transition filter (103) is in an inclined state and cooperates with the transition baffle (102) to form a dust storage buffer space on the side of the dust collecting frame (101) away from the first square transition air duct (3).

6. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: The structure of the first composite solenoid valve tube (4) is the same as that of the second composite solenoid valve tube (6), and the top and bottom of the first composite solenoid valve tube (4) are respectively an inverted conical tubular structure and an upright conical tubular structure.

7. The ventilation structure of an elevator ceiling according to claim 1, characterized in that: A protective filter screen is fixedly connected between the top of the side of the hollow air delivery plate (7) and the bottom of the corresponding side of the first square transition air duct (3), and the number of filter grooves arranged at the bottom of the hollow air delivery plate (7) is not less than two and is equidistantly distributed at the bottom of the hollow air delivery plate (7).

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