Laboratory shielding door non-tight-closing alarm device

Abstract

The utility model relates to the technical field of laboratory safety equipment, in particular to an untight-closing alarm device for a shielding door of a laboratory. According to the technical scheme, the shielding door comprises a door frame, a shielding door body is movably arranged on the door frame, a first mounting groove and a second mounting groove which are used for mounting are formed in the inner wall of one side and the front face of the door frame respectively, a through groove used as a limiting groove is formed in the inner wall of one side of the second mounting groove, and a rectangular groove is formed in the inner wall of the top of the first mounting groove; an alarm structure is arranged in the first installation groove and comprises an installation box used for installation, and a guide plate and an ejector rod used for extrusion are movably arranged in the installation box. Through the arrangement of the guide plate, the spring, the ejector rod, the buzzer and the conductive blocks, when the door is not closed tightly, the two conductive blocks are attached to enable the alarm to be powered on to give an alarm; the transmission mode of infrared rays, capacitance and microwave radar is replaced by mechanical transmission, the situation that equipment judgment is wrong due to the fact that signals are interfered can be eradicated, and the failure rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laboratory safety equipment technology, and in particular to an alarm device for a laboratory shielded door that is not closed tightly. Background Technology

[0002] In modern laboratories, especially in experimental settings with strict requirements for electromagnetic environment or spatial isolation, such as electromagnetic compatibility experiments and nuclear magnetic resonance (NMR) experiments, laboratory shielded doors play a crucial role. Their main function is to prevent interference from external electromagnetic signals, ensuring the normal operation of precision instruments within the laboratory, while also preventing electromagnetic signal leakage and avoiding impact on the surrounding environment and other equipment. Typically, a non-contact alarm is installed on one side of the door frame, which sounds an alarm to alert staff if the shielded door is not properly closed.

[0003] Since non-contact alarms are in complex electromagnetic environments, external interference signals can affect the normal operation of the sensors and lead to misjudgments. In view of the above reasons, this application proposes an alarm device for a laboratory shielded door that is not closed tightly. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an alarm device for a laboratory shielded door that is not closed tightly.

[0005] The technical solution of this utility model is as follows: a laboratory shielded door not closed alarm device, including a door frame, a shielded door body is movably mounted on the door frame, a mounting groove 1 and a mounting groove 2 for installation are respectively provided on one inner wall and the front of the door frame, a through groove for limiting the groove is provided on one inner wall of the mounting groove 2, a rectangular groove is provided on the top inner wall of the mounting groove 1, and an alarm structure is provided in the mounting groove 1.

[0006] The alarm structure includes a mounting box for installation, a guide plate and a push rod for pressing are movably disposed inside the mounting box, a spring for resetting the guide plate is fixed on one inner wall of the mounting box, the other end of the spring is attached to the guide plate, and a buzzer for alarm is provided on the bottom inner wall of the mounting box.

[0007] Optionally, the mounting box has an inspection cover on its front inner wall, and the guide plate has a movably mounted connecting seat on its exterior, which is fixedly connected to one side inner wall of the mounting box.

[0008] Optionally, the mounting box has multiple through holes on the inner wall of the back side, a battery on the inner wall of the bottom side, and conductive block one and conductive block two are fixedly installed on the inner wall of one side and the guide plate of the mounting box, respectively.

[0009] Optionally, a circular hole is provided on one inner wall of the mounting box, and a limiting groove is provided on the inner wall of the circular hole. Two limiting strips are fixedly provided on the outside of the top rod, and the limiting strips and the limiting groove are movably connected.

[0010] Optionally, the second mounting groove is provided with a pressing structure, which includes a pressure plate for pressing the mounting box and a rotating shaft one and a rotating shaft two for rotation. The rotating shaft one and the rotating shaft two are movably connected to the inner wall of the second mounting groove, and gear one and gear two for transmission are respectively fixed on the rotating shaft one and the rotating shaft two.

[0011] Optionally, gear one and gear two mesh and drive each other, a toothed plate is fixedly provided on the top of the pressure plate, the toothed plate and gear one mesh and drive each other, a turntable is fixedly provided on the rotating shaft two, a positioning screw is movably provided on the turntable, two mounting holes are provided on the inner walls of both sides of the mounting groove two, bearings are fixedly provided in both sets of mounting holes, and the inner rings of multiple bearings are respectively fixedly sleeved on rotating shaft one and rotating shaft two.

[0012] Optional.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. This utility model, through the setting of guide plate, spring, top rod, buzzer and conductive block, when the door is not closed tightly, the two conductive blocks stick together to power up the alarm. It uses mechanical transmission to replace the transmission methods of infrared, capacitor and microwave radar, which can eliminate the situation of equipment misjudgment due to signal interference and reduce the failure rate.

[0015] 2. This utility model, through the arrangement of gear one, gear two, rotating shaft one, rotating shaft two, gear plate and turntable, allows the pressure plate to be attached to and separated from the mounting box by rotating the turntable, realizing the quick assembly and disassembly of the alarm structure, which facilitates subsequent maintenance work. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of this utility model is provided;

[0017] Figure 2 A side sectional view of the door frame in this utility model is provided;

[0018] Figure 3 A top sectional view of the alarm structure in this utility model is provided;

[0019] Figure 4 A cross-sectional view of the alarm structure in this utility model is provided;

[0020] Figure 5 A three-dimensional schematic diagram of the clamping structure in this utility model is provided.

[0021] Figure label:

[0022] 1. Door frame;

[0023] 2. Platform screen door body;

[0024] 3. Mounting slot one;

[0025] 4. Install slot two;

[0026] 5. Through groove;

[0027] 6. Alarm structure; 601. Mounting box; 602. Inspection cover; 603. Connecting seat; 604. Guide plate; 605. Spring; 606. Top rod; 607. Battery; 608. Buzzer; 609. Conductive block one; 610. Conductive block two;

[0028] 7. Clamping structure; 701. Pressure plate; 702. Rotating shaft one; 703. Rotating shaft two; 704. Gear plate; 705. Gear one; 706. Gear two; 707. Turntable; 708. Positioning screw. Detailed Implementation

[0029] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0030] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0031] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0032] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0034] Example

[0035] like Figure 1-5 As shown, the present invention proposes a laboratory shielded door not closed alarm device, including a door frame 1, a shielded door body 2 movably mounted on the door frame 1, and mounting groove 1 3 and mounting groove 2 4 for installation respectively provided on one inner wall and front of the door frame 1. Mounting groove 2 4 has an insertion hole on one inner wall, which is compatible with a positioning screw 708. Mounting groove 2 4 has a through groove 5 for limiting the groove on one inner wall. Mounting groove 1 3 has a rectangular groove on its top inner wall and an alarm structure 6 is provided in mounting groove 1 3.

[0036] The alarm structure 6 includes a mounting box 601 for installation. Inside the mounting box 601, a guide plate 604 and a pressing rod 606 are movably mounted. The pressing rod 606 can be pressed by a shielding door, causing the two conductive blocks to separate and stop the alarm. A circular hole is provided on one inner wall of the mounting box 601, and a limiting groove is provided on the inner wall of the circular hole. Two limiting strips are fixedly mounted on the outside of the pressing rod 606, and the limiting strips are movably connected to the limiting groove. An inspection cover 602 is provided on the inner wall of the front of the mounting box 601. A connecting seat 603 is movably mounted on the outside of the guide plate 604, and the connecting seat 603 and the mounting box 601 are connected. One side of the inner wall is fixedly connected, and a spring 605 for resetting the guide plate 604 is fixedly provided on one side of the inner wall of the mounting box 601. The other end of the spring 605 is in contact with the guide plate 604. A buzzer 608 for alarm is provided on the bottom inner wall of the mounting box 601. Multiple through holes are provided on the back inner wall of the mounting box 601. The sound of the buzzer 608 can be emitted through the through holes. A storage battery 607 is provided on the bottom inner wall of the mounting box 601. Conductive block 1 609 and conductive block 2 610 are fixedly provided on one side inner wall of the mounting box 601 and the guide plate 604, respectively.

[0037] The mounting groove 24 is equipped with a clamping structure 7, which includes a pressure plate 701 for pressing the mounting box 601 and rotating shafts 702 and 703 for rotation. Two mounting holes are provided on each side inner wall of the mounting groove 24, and bearings are fixedly installed in both sets of mounting holes. The inner rings of multiple bearings are respectively fixedly sleeved on rotating shafts 702 and 703. Rotating shafts 702 and 703 are movably connected to the inner wall of the mounting groove 24. Gear 1 705 and gear 2 706 for transmission are fixedly installed on shaft 2 and shaft 2 703 respectively. Gear 1 705 and gear 2 706 mesh and transmit power. Toothed plate 704 is fixedly installed on the top of pressure plate 701. Toothed plate 704 meshes and transmits power with gear 1 705. Turntable 707 is fixedly installed on shaft 2 703. Positioning screw 708 is movably installed on turntable 707. The clamping structure 7 can realize quick disassembly and assembly of alarm structure 6, which is convenient for subsequent maintenance.

[0038] In this embodiment, conductive block 609 and the positive terminal of battery 607 are connected by a wire, conductive block 610 and the positive terminal of buzzer 608 are connected, and the negative terminal of buzzer 608 and the negative terminal of battery 607 are connected by a wire. If the shielding door is not closed tightly, the top rod 606 is not fully pushed in, and one end of the top rod 606 protrudes. When conductive block 610 and conductive block 609 are in contact, the buzzer 608 is energized to sound an alarm, which can remind relevant personnel that the shielding door is not closed tightly. When the shielding door is closed tightly, the top rod 606 presses the guide plate 604, and the guide plate 604 then presses the spring 605. The guide plate 604 drives the conductive block 605 to close. When block 2 610 separates from conductive block 1 609, the buzzer 608 is powered off and stops alarming. When the alarm structure 6 needs to be removed for maintenance, first turn the positioning screw 708 counterclockwise to dislodge one end from the socket. Then turn the turntable 707 clockwise. The turntable 707 drives the rotating shaft 2 703, which in turn drives the gear 2 706. The gear 2 706 then drives the gear 1 705, which in turn drives the toothed plate 704 to move upward. The toothed plate 704 then drives the pressure plate 701. When the bottom of the pressure plate 701 separates from the mounting box 601, the alarm structure 6 can be removed for maintenance.

[0039] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A laboratory shielded door not closed alarm device, comprising a door frame (1), a shielded door body (2) movably mounted on the door frame (1), a mounting groove 1 (3) and a mounting groove 2 (4) for installation respectively provided on one inner wall and front of the door frame (1), a through groove (5) for limiting the groove on one inner wall of the mounting groove 2 (4), and a rectangular groove provided on the top inner wall of the mounting groove 1 (3), characterized in that: An alarm structure (6) is provided in the mounting slot (3); The alarm structure (6) includes a mounting box (601) for installation. A guide plate (604) and a push rod (606) for pressing are movably disposed inside the mounting box (601). A spring (605) for resetting the guide plate (604) is fixed on one inner wall of the mounting box (601). The other end of the spring (605) is in contact with the guide plate (604). A buzzer (608) for alarm is provided on the bottom inner wall of the mounting box (601).

2. The laboratory shielded door not fully closed alarm device according to claim 1, characterized in that, The mounting box (601) has an inspection cover (602) on its front inner wall, and the guide plate (604) has a connecting seat (603) on its outside. The connecting seat (603) is fixedly connected to one side inner wall of the mounting box (601).

3. The laboratory shielded door not fully closed alarm device according to claim 1, characterized in that, The mounting box (601) has multiple through holes on its back inner wall, and a storage battery (607) is provided on the bottom inner wall of the mounting box (601). Conductive block one (609) and conductive block two (610) are respectively fixed on one side inner wall of the mounting box (601) and the guide plate (604).

4. The laboratory shielded door not fully closed alarm device according to claim 1, characterized in that, The mounting box (601) has a circular hole on one side of its inner wall, and a limiting groove is provided on the inner wall of the circular hole. Two limiting strips are fixedly provided on the outside of the top rod (606), and the limiting strips and the limiting groove are movably connected.

5. The laboratory shielded door not fully closed alarm device according to claim 1, characterized in that, The mounting groove 2 (4) is provided with a pressing structure (7). The pressing structure (7) includes a pressure plate (701) for pressing the mounting box (601) and a rotating shaft 1 (702) and a rotating shaft 2 (703) for rotation. The rotating shaft 1 (702) and the rotating shaft 2 (703) are movably connected to the inner wall of the mounting groove 2 (4). The rotating shaft 1 (702) and the rotating shaft 2 (703) are respectively fixed with a gear 1 (705) and a gear 2 (706) for transmission.

6. The laboratory shielding door not fully closed alarm device according to claim 5, characterized in that, The gear one (705) and gear two (706) mesh and drive each other. A toothed plate (704) is fixedly provided on the top of the pressure plate (701). The toothed plate (704) and gear one (705) mesh and drive each other. A turntable (707) is fixedly provided on the rotating shaft two (703). A positioning screw (708) is movably provided on the turntable (707).

7. The laboratory shielded door not fully closed alarm device according to claim 5, characterized in that, Two mounting holes are provided on the inner walls of both sides of the mounting groove 2 (4). Bearings are fixedly installed in both sets of mounting holes, and the inner rings of multiple bearings are respectively fixedly sleeved on the rotating shaft 1 (702) and rotating shaft 2 (703).

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