A structure of up-and-down swing door with opening and closing detection function
By combining a non-contact infrared sensing device with an epoxy resin sealing layer, the problem of inaccurate detection of top and bottom opening and closing door structures is solved, providing a highly sensitive, durable, and compact opening and closing detection solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUANDONG MAGNETIC ELECTRONICS CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-24
AI Technical Summary
Existing door structures with opening and closing detection functions are inaccurate in detecting status and suffer from problems such as mechanical wear, slow response speed, poor sealing and large size. They are also unstable in liquid contamination environments.
A non-contact infrared sensing device is used, including a ball bearing and an infrared pair. The opening and closing detection is achieved by the ball bearing rolling on the slope to block or move away from the infrared pair. Combined with an epoxy resin sealing layer, the sealing and durability are ensured.
It achieves opening and closing detection with no mechanical wear, short response time, high sensitivity, adaptability to harsh environments, and compact structure, making it suitable for miniaturized equipment.
Smart Images
Figure CN224549905U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of intelligent door structure, and in particular relates to an up-and-down opening and closing door structure with opening and closing detection function. Background Technology
[0002] To adapt to the trend of intelligentization, door opening and closing detection is one of the important intelligent functions for container placement. Traditional opening and closing detection uses proximity switches and magnetic switches. For some containers, proximity switches can be activated if debris gets stuck in the door, compromising detection accuracy; magnetic switches have a short lifespan, increasing user costs. In general, existing detection equipment has the following drawbacks: 1) Mechanical contacts are prone to wear and have a short lifespan; 2) Switch response speed is slow; 3) Poor sealing performance, making them susceptible to moisture damage and failure; 4) Large size, making them difficult to apply to miniaturized devices. Furthermore, the use of top-and-bottom opening and closing door structures with opening and closing detection functions often involves liquid contamination, which can affect their operation and lead to inaccurate detection results. Utility Model Content
[0003] The purpose of this invention is to provide a top-and-bottom opening and closing door structure with opening and closing detection function, so as to solve the problem that the existing top-and-bottom opening and closing door structures with opening and closing detection function do not detect the status accurately.
[0004] This utility model discloses a top-and-bottom opening and closing door structure with opening and closing detection function, including a door body and a cavity. The door body is disposed on the upper part of the cavity, and one end of the door body is hinged to the cavity. A sensing device is disposed on the door body, and the sensing device includes: The base has a placement cavity inside; Spherical balls are rolled within the placement cavity; The infrared pair includes a transmitter and a receiver, which are respectively located on both sides of the placement cavity; the PCB board has a control line on one end and is used to install the infrared pair on the other end; A cover is placed above the placement cavity; A sealing layer covers the top of the base.
[0005] As a further improvement to the above technical solution: The sealing layer is formed by coating with epoxy resin material.
[0006] The placement cavity is provided with a ramp.
[0007] The angle of the slope ranges from 2° to 4.5°.
[0008] The base and cover are made of transparent material.
[0009] The spherical balls are opaque plastic balls or stainless steel balls.
[0010] The base is provided with mounting ears.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1) It adopts non-contact infrared sensing, which eliminates mechanical wear and has a long service life; 2) Short response time and high sensitivity; 3) The epoxy resin sealing layer achieves an IP67 protection rating, making it suitable for harsh environments; 4) The overall structure is compact; 5) Trigger sensitivity can be customized by adjusting the ramp angle. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the installation and application structure of this utility model; Figure 4 This is one of the schematic diagrams of the internal structure of this utility model; Figure 5 This is the second schematic diagram of the internal structure of this utility model.
[0013] Reference numerals: 100, door body; 200, cavity; 300, sensing device; 1, base; 11, placement cavity; 111, ramp; 2, ball bearing; 3, infrared photocell; 4, PCB board; 5, cover; 6, sealing layer. Detailed Implementation
[0014] To make the technical means, creative features, and achieved objectives and effects of this utility model readily understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and 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.
[0015] like Figure 1 As shown, the top-and-bottom opening and closing door structure with opening and closing detection function in this embodiment includes a door body 100 and a cavity 200. The door body 100 is disposed on the upper part of the cavity 200, and one end of the door body 100 is hinged to the cavity 200. A sensing device 300 is disposed on the door body 100. The sensing device 300 includes: The base 1 has a placement cavity 11 inside; Spherical ball bearings 2 are rolled within the placement cavity 11; Infrared pair 3, including a transmitter and a receiver, is respectively set on both sides of the placement cavity 11; PCB board 4, one end is provided with a control line, and the other end is used to install infrared pair 3; PCB board 4 has a U-shaped structure, is embedded in the base 1, and is located on both sides of the placement cavity 11, with the transmitter and receiver of infrared pair 3 symmetrically arranged at the head of the U-shaped structure.
[0016] Cover 5 is positioned above placement cavity 11; Sealing layer 6 covers the base 1.
[0017] The sealing layer 6 is formed by coating (potting) with epoxy resin material.
[0018] The placement cavity 11 is provided with a ramp 111. The angle of the ramp 111 is in the range of 2°-4.5°.
[0019] The base 1 and the cover 5 are made of transparent material. The transmittance of infrared light is ≥90%. The spherical ball 2 is made of opaque plastic or stainless steel. This ensures effective shielding of the infrared photodiode's optical path and prevents detection failure caused by light transmission.
[0020] The base 1 is provided with mounting ears 7. The sensor 300 is installed inside the door 100 through the mounting ears 7. The door 100 has a built-in control wire connector that is plugged into the control wire of the PCB board 4.
[0021] This invention uses a spherical ball to block or remove the infrared sensor to achieve the on / off state of an up-and-down opening door structure with opening and closing detection function, thereby determining whether the door is closed or open.
[0022] The specific implementation is as follows: A sensor 300 with opening / closing detection function is installed on the vertically opening door 100. When the door 100 is closed, the spherical ball 2 rolls down a 4.5° slope 111 under gravity to the lowest point in the placement cavity. At this time, the spherical ball 2 blocks the infrared phototransistor 3, and the switch is in the off state, outputting a level signal. This level signal serves as the signal for the closed state of the door. When the door is lifted, the sensor 300 is lifted along with the door, and when the angle with the horizontal is ≥5°, the spherical ball 2 rolls towards the other end of the placement cavity 11, away from the infrared phototransistor 3, under gravity. At this time, the switch is in the on state, outputting a level signal opposite to that when it is off. This level signal serves as the signal for the open state of the door. This is used for door opening / closing detection. In some application scenarios, when the cavity 200 as a whole tends to tilt upwards, the sensor 300 will also work, which can be used for tilt detection.
[0023] The above descriptions are merely embodiments of this utility model, and the specific structures and characteristics disclosed in the solutions are not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A vertically opening and closing door structure with opening and closing detection function, comprising a door body (100) and a cavity (200), wherein the door body (100) is disposed on the upper part of the cavity (200), and one end of the door body (100) is hinged to the cavity (200), characterized in that, The door (100) is provided with a sensing device (300), the sensing device (300) comprising: The base (1) has a placement cavity (11) inside. Spherical ball bearings (2) are rolled within the placement cavity (11); Infrared pair (3), including a transmitter and a receiver, are respectively set on both sides of the placement cavity (11); PCB board (4), one end is provided with a control line, and the other end is used to install infrared pair (3). Cover (5) is placed above the placement cavity (11); A sealing layer (6) is placed over the base (1).
2. The top-and-bottom opening and closing door structure with opening and closing detection function according to claim 1, characterized in that, The sealing layer (6) is formed by coating with epoxy resin material.
3. The top-and-bottom opening and closing door structure with opening and closing detection function according to claim 1 or 2, characterized in that, The placement cavity (11) is provided with a ramp (111).
4. The up-and-down opening and closing door structure with opening and closing detection function according to claim 3, characterized in that, The angle range of the slope (111) is 2°-4.5°.
5. The up-and-down opening and closing door structure with opening and closing detection function according to claim 4, characterized in that, The base (1) and cover (5) are made of transparent material.
6. The top-and-bottom opening and closing door structure with opening and closing detection function according to claim 5, characterized in that, The spherical ball (2) is an opaque plastic ball or a stainless steel ball.
7. The top-and-bottom opening and closing door structure with opening and closing detection function according to claim 6, characterized in that, The base (1) is provided with mounting ears (7).