Untight-closing alarm device for shielding door of electromagnetic compatibility laboratory

By installing an audible and visual alarm and a control button on the electromagnetic screen door, and utilizing the cooperation of the push rod and the positioning mechanism, the automatic alarm function is realized when the screen door is not closed in place, solving the problem of the lack of alarm prompts in the existing technology. Improved the stability of the test environment and the accuracy of test results.

CN222354552UActive Publication Date: 2025-01-14ZHEJIANG NOYETEC TECH CO LTD
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Patent Information

Application Number
CN202421087692.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-01-14
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

The existing electromagnetic shielding door lacks an alarm prompt when it is not closed in place, resulting in electromagnetic signals leakage, destroying the test electromagnetic environment and affecting the accuracy of the test results.

Method used

An electromagnetic compatibility laboratory screen door is not closed tightly alarm device is designed. By installing an audible and visual alarm and a control button on the screen door, and using the cooperation of the ejector rod and the positioning mechanism, the alarm is automatically triggered when the screen door is not closed in place. Function.

Benefits of technology

It effectively realizes the alarm prompt that the shield door is not closed in place, avoids the crosstalk of external electromagnetic signals caused by the electromagnetic shield door not being closed in place, and improves the stability of the test environment and the accuracy of the test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an untight-closing alarm device for a shielding door of an electromagnetic compatibility laboratory, and belongs to the technical field of alarm devices. The device comprises a first machine shell, a second machine shell is arranged on one side of the first machine shell, fixing plates are installed at the top end and the bottom end of the side, away from the second machine shell, of the first machine shell correspondingly, a battery box is installed between the pair of fixing plates, and audible and visual alarms are installed at the top ends of the fixing plates; an opening is formed in one side of the first machine shell, a cross rod is installed on one side of the second machine shell, one end of the cross rod extends to the inner side of the opening, a switch mechanism is embedded in the top end of the inner side of the opening, a positioning mechanism is embedded in the bottom end of the inner side of the opening, and the switch mechanism comprises a lifting rod. According to the utility model, the alarm prompt that the shielding door is not closed in place can be effectively realized, external electromagnetic signal crosstalk caused by the fact that the electromagnetic shielding door is not closed in place is avoided, and the practical value is higher.
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Description

Technical Field

[0001] The utility model relates to the technical field of alarm devices, in particular to an alarm device for an electromagnetic compatibility laboratory shielding door not being closed tightly. Background Art

[0002] The shielding effectiveness of the electromagnetic compatibility laboratory is extremely important, and the electromagnetic shielding door is a key point to ensure the shielding effectiveness in addition to the shielding shell. If the electromagnetic shielding door is not closed properly, it is very easy to cause electromagnetic signal leakage, destroy the test electromagnetic environment and cause deviation in the test results. However, the current electromagnetic shielding door does not have an alarm prompt for the shielding door not being closed properly, which is easy to cause external electromagnetic signal crosstalk caused by the electromagnetic shielding door not being closed properly.

[0003] Therefore, in view of this, the existing structure and defects are studied and improved, and an electromagnetic compatibility laboratory shielding door not closed alarm device is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an alarm device for electromagnetic compatibility laboratory shielding door not being closed tightly.

[0005] The utility model is achieved in this way:

[0006] A shielded door not-closed alarm device for an electromagnetic compatibility laboratory comprises a first housing, a second housing is provided on one side of the first housing, a fixing plate is installed at the top end and the bottom end of one side of the first housing away from the second housing, a battery box is installed between a pair of the fixing plates, an audible and visual alarm is installed at the top end of the fixing plates, an opening is provided on one side of the first housing, a cross bar is installed on one side of the second housing, one end of the cross bar extends to the inner side of the opening, a switch mechanism is embedded in the inner top end of the opening, a positioning mechanism is embedded in the inner bottom end of the opening, the switch mechanism comprises a lifting rod, a first cavity is provided at the inner top end of the first housing, the outer side of the lifting rod is slidably connected to the inner side of the first cavity, a control button is installed at the inner top end of the first cavity, a first spring is installed on the outer side of the bottom end of the control button, and the bottom end of the first spring is fixedly connected to the top end of the lifting rod.

[0007] Furthermore, a first mounting seat is installed at the top and bottom of the first housing, and a first mounting hole is opened on one side of the first mounting seat.

[0008] Furthermore, a second mounting seat is installed at the top and bottom of the second housing, and a second mounting hole is opened on one side of the second mounting seat.

[0009] The beneficial effect of adopting the above further solution is that the second housing can be installed on the door by installing the second mounting seats at the top and bottom of the second housing.

[0010] Furthermore, a lithium battery is installed inside the battery box.

[0011] The beneficial effect of adopting the above further solution is that the device is powered by installing a lithium battery inside the battery box.

[0012] Furthermore, one side of the bottom end of the lifting rod is inclined.

[0013] The beneficial effect of adopting the above further solution is that, by making one side of the bottom end of the top rod inclined, the top rod can be raised when the cross bar enters the opening.

[0014] Furthermore, the positioning mechanism comprises a positioning block, the top of which is in an arc shape, a groove is provided at the bottom of one end of the cross bar, and the top of the positioning block is snap-fitted and connected with the inner side of the groove.

[0015] The beneficial effect of adopting the above further solution is that the positioning of the cross bar after being engaged is achieved through the engagement connection between the top end of the positioning block and the inner side of the groove.

[0016] Furthermore, a second cavity is opened at the inner bottom end of the first housing, the inner side of the second cavity is slidably connected to a limit plate, the top of the limit plate and the bottom end of the positioning block are fixedly connected, a second spring is installed at the bottom end of the limit plate, and the bottom end of the second spring is fixedly connected to the inner bottom end of the second cavity.

[0017] The beneficial effect of adopting the above further solution is that the lifting stability of the positioning block is improved by fixing the top end of the limiting plate and the bottom end of the positioning block, and the second spring is installed at the bottom end of the limiting plate to achieve self-rebound of the positioning block.

[0018] The beneficial effects of the utility model are as follows: the utility model obtains an electromagnetic compatibility laboratory shielding door not closed alarm device through the above design, a battery box is installed between a pair of fixing plates to realize power supply of the equipment, an audible and visual alarm is installed at the top of the fixing plate, and an alarm function is realized when the control button is not pressed, and the control button can be pressed after the top rod is raised to turn off the audible and visual alarm, thereby realizing the alarm prompt function of not closed in place, and the first mounting seat is installed at the top and bottom of the first shell to realize the installation of the first shell on the door frame, and the second mounting seat is installed at the top and bottom of the second shell The mounting base can realize the installation of the second shell on the door, and the lithium battery is installed inside the battery box to realize power supply of the equipment. The bottom end of the top rod is inclined so that the top rod can rise when the cross bar enters the opening. The top end of the positioning block and the inner side of the groove are engaged to realize the positioning of the cross bar after engagement. The top end of the limiting plate and the bottom end of the positioning block are fixedly connected to improve the lifting stability of the positioning block. A second spring is installed at the bottom end of the limiting plate to realize self-rebound of the positioning block. The utility model can effectively realize the alarm prompt when the shielding door is not closed in place, avoid the external electromagnetic signal crosstalk caused by the electromagnetic shielding door not being closed in place, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A three-dimensional structural schematic diagram of an electromagnetic compatibility laboratory shielding door not closed alarm device provided by the utility model;

[0021] Figure 2 The utility model provides a first housing stereoscopic device for an electromagnetic compatibility laboratory shielding door not closed alarm device. Figure 1 ;

[0022] Figure 3 The utility model provides a first housing stereoscopic device for an electromagnetic compatibility laboratory shielding door not closed alarm device. Figure 2 ;

[0023] Figure 4 A three-dimensional diagram of a second housing of an electromagnetic compatibility laboratory shielding door not closed alarm device provided by the utility model;

[0024] Figure 5The utility model provides a cross-sectional view of a first housing of an electromagnetic compatibility laboratory shielding door not closed alarm device.

[0025] In the figure: 100, first housing; 10001, opening; 10002, first cavity; 10003, second cavity; 101, second housing; 102, first mounting seat; 103, fixing plate; 104, sound and light alarm; 105, battery box; 106, positioning mechanism; 10601, positioning block; 10602, limit plate; 10603, second spring; 107, switch mechanism; 10701, lifting rod; 10702, first spring; 10703, control button; 108, cross bar; 10801, groove; 109, second mounting seat. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1 of the utility model of an electromagnetic compatibility laboratory shielding door not closed alarm device

[0029] The utility model provides the following technical solutions: Figure 1 to Figure 5As shown, an electromagnetic compatibility laboratory shielding door not closed alarm device includes a first housing 100, a second housing 101 is provided on one side of the first housing 100, a fixing plate 103 is installed at the top and bottom of one side away from the second housing 101 of the first housing 100, a battery box 105 is installed between a pair of fixing plates 103, an audible and visual alarm 104 is installed at the top of the fixing plate 103, an opening 10001 is opened on one side of the first housing 100, a cross bar 108 is installed on one side of the second housing 101, one end of the cross bar 108 extends to the inner side of the opening 10001, a switch mechanism 107 is embedded at the inner top of the opening 10001, a positioning mechanism 106 is embedded at the inner bottom of the opening 10001, the switch mechanism 107 includes a top rod 10701, and the first housing 100 is provided with a plurality of fixing plates 103. 0 is provided with a first cavity 10002 at the inner top end, the outer side of the push rod 10701 is slidably connected to the inner side of the first cavity 10002, a control button 10703 is installed at the inner top end of the first cavity 10002, a first spring 10702 is installed at the outer side of the bottom end of the control button 10703, the bottom end of the first spring 10702 is fixedly connected to the top end of the push rod 10701, and an audible and visual alarm 104 is installed at the top end of the fixing plate 103. When the control button 10703 is not pressed, an alarm function is realized. By setting the control button 10703, the first spring 10702 and the push rod 10701, the control button 10703 can be pressed after the push rod 10701 is raised, so that the audible and visual alarm 104 turns off the alarm, thereby realizing the alarm prompt function of not closing in place.

[0030] Embodiment 2 of the utility model of an electromagnetic compatibility laboratory shielding door not closed alarm device

[0031] Reference Figure 1 to Figure 5 As shown, a first mounting seat 102 is installed at the top and bottom of the first housing 100, and a first mounting hole is opened on one side of the first mounting seat 102; a second mounting seat 109 is installed at the top and bottom of the second housing 101, and a second mounting hole is opened on one side of the second mounting seat 109; a lithium battery is installed inside the battery box 105; one side of the bottom end of the top rod 10701 is inclined; the first housing 100 is installed on the door frame by mounting the first mounting seat 102 at the top and bottom of the first housing 100; the second housing 101 is installed on the door by mounting the second mounting seat 109 at the top and bottom of the second housing 101; the lithium battery is installed inside the battery box 105 to power the device; and one side of the bottom end of the top rod 10701 is inclined to make the top rod 10701 rise when the cross bar 108 enters the opening 10001.

[0032] Embodiment 3 of the utility model of an electromagnetic compatibility laboratory shielding door not closed alarm device

[0033] Reference Figure 1 to Figure 5 As shown, the positioning mechanism 106 includes a positioning block 10601, the top of the positioning block 10601 is in an arc shape, a groove 10801 is provided at the bottom of one end of the cross bar 108, the top of the positioning block 10601 is engaged with the inner side of the groove 10801, a second cavity 10003 is provided at the inner bottom of the first housing 100, the inner side of the second cavity 10003 is slidably connected to a limiting plate 10602, the top of the limiting plate 10602 is fixedly connected to the bottom of the positioning block 10601, and the bottom of the limiting plate 10602 is A second spring 10603 is installed at the end, and the bottom end of the second spring 10603 is fixedly connected to the inner bottom end of the second cavity 10003. The top of the positioning block 10601 and the inner side of the groove 10801 are engaged and connected to achieve the positioning of the cross bar 108 after engagement. The top of the limiting plate 10602 and the bottom end of the positioning block 10601 are fixedly connected to improve the lifting stability of the positioning block 10601. The second spring 10603 is installed at the bottom end of the limiting plate 10602 to achieve self-rebound of the positioning block 10601.

[0034] Specifically, the working principle of the electromagnetic compatibility laboratory shielding door not closed alarm device is as follows: when in use, a sound and light alarm 104 is installed through the top of the fixing plate 103, and the alarm function is realized when the control button 10703 is not pressed. Through the setting of the control button 10703, the first spring 10702 and the top rod 10701, the control button 10703 can be pressed after the top rod 10701 is raised, so that the sound and light alarm 104 turns off the alarm, thereby realizing the alarm prompt function of not closing in place. The first mounting seat 102 is installed at the top and bottom of the first housing 100, so that the first housing 100 is installed on the door frame. The second mounting seat 109 is installed at the top and bottom of the second housing 101, so that the second housing 101 is installed on the door. 05 is equipped with a lithium battery to power the equipment. One side of the bottom end of the top rod 10701 is inclined, so that the top rod 10701 can rise when the cross bar 108 enters the opening 10001. The top of the positioning block 10601 and the inner side of the groove 10801 are engaged and connected to achieve the positioning of the cross bar 108 after engagement. The top of the limiting plate 10602 and the bottom end of the positioning block 10601 are fixedly connected to improve the lifting and lowering stability of the positioning block 10601. A second spring 10603 is installed at the bottom end of the limiting plate 10602 to achieve self-rebound of the positioning block 10601. The utility model can effectively realize the alarm prompt when the shielding door is not closed in place, avoid the external electromagnetic signal crosstalk caused by the electromagnetic shielding door not being closed in place, and has high practical value.

[0035] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electromagnetic compatibility laboratory shielding door not closed alarm device, characterized in that: The invention comprises a first housing (100), wherein a second housing (101) is provided on one side of the first housing (100), a fixing plate (103) is installed at the top end and the bottom end of one side of the first housing (100) away from the second housing (101), a battery box (105) is installed between a pair of the fixing plates (103), an audible and visual alarm (104) is installed at the top end of the fixing plates (103), an opening (10001) is opened on one side of the first housing (100), a cross bar (108) is installed on one side of the second housing (101), one end of the cross bar (108) extends to the inner side of the opening (10001), and the inner top end of the opening (10001) is provided at the inner side of the opening (10001). A switch mechanism (107) is embedded in the inner bottom end of the opening (10001), and a positioning mechanism (106) is embedded in the switch mechanism (107) including a lifting rod (10701). A first cavity (10002) is opened at the inner top end of the first housing (100), and the outer side of the lifting rod (10701) and the inner side of the first cavity (10002) are slidably connected. A control button (10703) is installed at the inner top end of the first cavity (10002), and a first spring (10702) is installed on the outer side of the bottom end of the control button (10703), and the bottom end of the first spring (10702) is fixedly connected to the top end of the lifting rod (10701).

2. The electromagnetic compatibility laboratory shielding door not closed alarm device according to claim 1 is characterized in that: A first mounting seat (102) is mounted on the top and bottom ends of the first housing (100), and a first mounting hole is formed on one side of the first mounting seat (102).

3. The electromagnetic compatibility laboratory shielding door not closed alarm device according to claim 1 is characterized in that: A second mounting seat (109) is mounted on the top and bottom ends of the second housing (101), and a second mounting hole is formed on one side of the second mounting seat (109).

4. The electromagnetic compatibility laboratory shielding door not closed alarm device according to claim 1 is characterized in that: A lithium battery is installed inside the battery box (105).

5. The electromagnetic compatibility laboratory shielding door not closed alarm device according to claim 1 is characterized in that: One side of the bottom end of the lifting rod (10701) is inclined.

6. The electromagnetic compatibility laboratory shielding door not closed alarm device according to claim 1 is characterized in that: The positioning mechanism (106) comprises a positioning block (10601), the top of the positioning block (10601) is in an arc shape, a groove (10801) is provided at the bottom of one end of the cross bar (108), and the top of the positioning block (10601) is snap-fitted with the inner side of the groove (10801).

7. The electromagnetic compatibility laboratory shielding door not closed alarm device according to claim 6, characterized in that: A second cavity (10003) is provided at the inner bottom end of the first housing (100), the inner side of the second cavity (10003) is slidably connected to a limiting plate (10602), the top end of the limiting plate (10602) is fixedly connected to the bottom end of the positioning block (10601), a second spring (10603) is installed at the bottom end of the limiting plate (10602), and the bottom end of the second spring (10603) is fixedly connected to the inner bottom end of the second cavity (10003).