Protective device for preventing maloperation of lamp test button

Abstract

The utility model discloses a protective device for preventing maloperation of a lamp test button, which relates to the technical field of maloperation protection of mechanical buttons and mainly comprises a shell, an elastic buffer piece and a cover plate. The protective cover is additionally arranged outside the test button and the switch button, the wind power effect of the air outlet can be blocked, the wind power is prevented from acting on the test button, it is ensured that the button and the switch button in the protective cover are not affected by external negative pressure, and axial misoperation of the test button caused by the wind power effect is avoided; through the elastic buffering effect of the elastic buffering piece, the testing button and the switch button structure have a certain springback stroke, the appropriate springback stroke and feedback can be kept even under the negative pressure condition, meanwhile, the clamping cap is pre-pressed through the buffering rubber mat, the clamping cap is prevented from being separated from the button shaft, direct impact caused by vibration caused by air flow is reduced, and the service life of the testing button and the switch button structure is prolonged. The false operation of the test button is avoided, the use stability of the test button of the lamp is improved, and the test can be smoothly carried out.

Description

Technical Field

[0001] This utility model relates to the field of mechanical button malfunction protection technology, and in particular to a protective device for preventing lamp test buttons from malfunctioning. Background Technology

[0002] The test button for the white-purple lighting unit includes components such as a cap, a spring-loaded plastic pad, a spring, and two metal contact pieces. When the test button is not in operation, the gap between the two metal contact pieces is H1; when in operation, the gap between the two metal contact pieces is 0. Because the white-purple lighting unit is installed on the upper wall panel of the test section, and because the upper wall panel has many air vents, small parts such as the cap and spring-loaded plastic pad are frequently lost or damaged. During testing in an environment of 0.2–1.6 Ma, a negative pressure is generated around the white-purple lighting unit. Under a very small axial wind force, the gap between the two metal contact pieces will move. When the movement reaches H1, it triggers the contact between the two metal contact pieces, incorrectly triggering the operating state command. This causes malfunctions in the test button and switch, affecting the progress of the test. Utility Model Content

[0003] The purpose of this invention is to address the problem that existing lamp test buttons are accidentally triggered by small axial forces, affecting test progress or causing malfunction. This invention provides a protective device to prevent accidental activation of lamp test buttons, comprising: a housing, an elastic buffer, and a cover plate. The housing can support the outer perimeter of the test button, and its bottom can be fixed to the power supply housing of the lamp. The elastic buffer can be fixed to the top of the test button. The height of the housing is equal to the sum of the top height of the test button and the height of the elastic buffer. The cover plate is detachably fixed to the top of the housing, so that the lower surface of the cover plate abuts against the elastic buffer.

[0004] The solution described in this utility model, by setting a housing support around the outside of the button test and fixing the bottom to the power supply housing of the lamp, can, on the one hand, block the wind force from the air outlet, preventing the wind force from acting on the test button and ensuring that the button and switch inside the protective cover are not affected by external negative pressure, thereby preventing the test button from being axially malfunctioned by the wind force; on the other hand, by fixing a cover plate on the top of the housing and setting an elastic buffer on the top of the test button, after the cover plate is fixed to the top of the housing, the lower plate surface can press against the elastic buffer. After the test button is vibrated by wind force or the upper wall plate, the elastic buffer provides elastic cushioning. The test button and switch structure have a certain rebound stroke, and even under negative pressure conditions, they can maintain an appropriate rebound stroke and feedback, reducing the direct impact of vibration caused by airflow, thereby avoiding the risk of malfunction, improving the stability of the lamp's test button, facilitating the smooth conduct of testing, and improving the production and work efficiency of testing.

[0005] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the elastic buffer is an elastic rubber pad; the elastic rubber pad is fixedly connected to the top of the test button.

[0006] As a preferred embodiment of this utility model, by setting the elastic buffer as an elastic rubber pad, on the one hand, the elastic rubber pad has elastic properties, which can provide stroke buffer for the rebound of the test button; on the other hand, the elastic rubber pad is sheet-shaped, and after being fixedly connected to the top of the test button, the friction between the elastic buffer and the test button is strong, which can prevent the elastic buffer from shifting or falling off due to vibration or negative pressure. This allows the elastic rubber pad to pre-compress the cap, preventing the cap from detaching from the button shaft, further reducing the risk of protection failure. The protective performance of this device is more stable and reliable.

[0007] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the top of the housing is provided with an axially protruding flange; the lower surface of the cover plate is provided with a recessed groove that cooperates with the flange.

[0008] As a preferred embodiment of this utility model, the flange and groove of the housing are fitted together, so that after the cover plate is fixed to the top of the housing, the cover plate and the top of the housing form a stepped fit, which further enhances the sealing performance, plays a better role in wind protection, and enhances the reliability and stability of the device.

[0009] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the outer side of the housing is provided with a radially extending connecting lug, and the connecting lug is provided with an axial first screw hole; the first screw hole is used for bolt connection between the connecting lug and the power supply housing.

[0010] As a preferred embodiment of this utility model, by providing a connecting ear, the bolt can easily pass through the first screw hole, so that the bolt nut is fixed above the connecting ear, and the lower part of the bolt is connected to the power supply housing. This does not affect the connection of the cover plate, and can firmly fix the housing to the power supply housing, thereby enhancing the housing's resistance to negative pressure and improving the connection strength and stability of the device.

[0011] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the lower surface of the connecting ear is flush with the lower bottom surface of the housing; the height of the connecting ear is lower than the height of the housing.

[0012] As a preferred embodiment of this utility model, by setting the lower surface of the connecting ear to be flush with the lower bottom surface of the housing, after the lower part of the housing is fixed to the upper part of the power supply housing, the bottom of the housing is in close contact with the power supply housing through planar contact, which can reduce the gap between the housing and the surface of the power supply housing, improve the sealing performance, reduce the force of negative pressure air flowing into the housing, and by making the connecting ear flush with the lower bottom surface of the housing, the sealing performance of the housing can be enhanced when fixing the bolts, thereby improving the protective performance of the protective device.

[0013] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the housing is a square housing, and the connecting ears include at least three; the three connecting ears are respectively disposed on the first side, the second side and the third side of the housing; two opposite connecting ears are respectively disposed close to the side ribs of the corresponding first side and the second side; the other connecting ear is disposed in the middle of the corresponding third side; the side ribs are away from the third side.

[0014] As a preferred embodiment of this utility model, by setting the shell to a square shape, the stability and anti-deformation performance of the shell support can be increased. By setting three connecting ears and the position of each connecting ear, one side of the shell can be close to other components of the power supply shell. Two connecting ears are located on the first and second sides and close to the side ribs, and the other connecting ear is located in the middle of the corresponding third side. This makes the force of the shell fixed by the connecting ears more evenly applied to the surface and bottom of the power supply shell, thereby enhancing the firmness of the shell fixation, preventing the shell from tilting or tilting due to different bolt tightness, and preventing the elastic buffer from failing due to tilting or unevenness, thus further enhancing the reliability of the device's protection.

[0015] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the top of the housing is provided with a second screw hole; the cover plate is provided with a third screw hole that matches the second screw hole; the second screw hole and the third screw hole are used for bolting the cover plate and the housing.

[0016] As a preferred embodiment of this utility model, by providing a second screw hole and a third screw hole, the cover plate and the housing can be bolted together. The test button can be used by disassembling the cover plate. This facilitates disassembly and enhances the sealing performance of the connection between the lower surface of the cover plate and the top of the housing.

[0017] Preferably, in the protective device for preventing accidental activation of the lamp test button according to the present invention, the housing is a metal housing and the cover is a metal cover.

[0018] As a preferred embodiment of this utility model, by setting a metal shell and a metal cover plate, the support of the metal shell reduces the risk of deformation or damage to the shell or cover plate compared to plastic or other shells, and avoids the situation where the protection fails due to deformation or damage to the shell or cover plate, thus further enhancing the stability and robustness of the protection of the device.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. It can block the wind force of the air outlet to prevent the wind force from acting on the test button, and ensure that the buttons and switches inside the protective cover are not affected by the external negative pressure, thereby preventing the test button from being axially malfunctioned by the wind force.

[0021] 2. Through the elastic buffering effect, the test button and switch button structure have a certain rebound stroke. Even under negative pressure conditions, they can maintain an appropriate rebound stroke and feedback, reducing the direct impact caused by vibration due to airflow, thereby avoiding the risk of malfunction. This improves the stability of the test button for the lamp, facilitates the smooth conduct of tests, and enhances the production and work efficiency of tests. Attached Figure Description

[0022] Figure 1 This is an exploded view (a) of the three-dimensional structure of this utility model;

[0023] Figure 2 This is an exploded view (b) of the three-dimensional structure of this utility model;

[0024] Figure 3 This is a top view schematic diagram of the shell structure of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the cover plate of this utility model;

[0026] Figure 5 This is an assembly diagram of the three-dimensional structure of this utility model;

[0027] Icons: 1. Housing; 11. Flange; 12. Connecting ear; 121. First screw hole; 13. Second screw hole; 2. Elastic buffer; 3. Cover plate; 31. Groove; 32. Third screw hole; 100. Test button; 200. Power supply housing. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0030] Example 1:

[0031] As shown in the figure

[0032] like Figures 1 to 5 As shown, this embodiment provides a protective device for preventing accidental activation of a lamp test button 100, comprising: a housing 1, an elastic buffer 2, and a cover plate 3; the housing 1 can be supported around the outside of the test button 100, and its bottom can be fixed to the power supply housing 200 of the lamp; the elastic buffer 2 can be fixed to the top of the test button 100; the height of the housing 1 is equal to the sum of the top height of the test button 100 and the height of the elastic buffer 2; the cover plate 3 is detachably fixed to the top of the housing 1, thereby causing the lower surface of the cover plate 3 to press against the elastic buffer 2.

[0033] It should be noted that the elastic buffer 2 is understood as a component that can be fixed to the top of the test button 100, and can axially extend and retract a certain distance while maintaining contact with the test button 100 when subjected to external force, and has elastic recovery capability, such as an elastic pad or rubber pad; specifically, in this embodiment, the elastic buffer 2 can be an elastic rubber pad; the elastic rubber pad is fixedly connected to the top of the test button 100.

[0034] The cover plate 3 of this utility model can be closed on the top of the housing 1. Specifically, refer to... Figures 2 to 4 and Figure 5 As shown, the top of the housing 1 has an axially protruding flange 11; the lower surface of the cover plate 3 has a recessed groove 31 that mates with the flange 11; it should be noted that, for clarity of illustration, Figure 4 This is a perspective view of the cover plate 3 after its lower surface has been flipped up.

[0035] It should be noted that the axial direction is understood to refer to the axial direction of the test button 100, and the radial direction is the direction perpendicular to the axial direction.

[0036] refer to Figure 5As shown, the working principle of this utility model is as follows: The bottom of the housing 1 contacts the upper surface of the power supply housing 200. The housing 1 is fixed to the power supply housing 200 through the connecting ear 12, so that the test button 100 is located inside the housing 1. The elastic buffer 2 is fixed to the top of the test button 100. Then, the cover plate 3 is closed on the top of the housing 1. By setting the height of the housing 1 to be equal to the sum of the top height of the test button 100 and the height of the elastic buffer 2, after the cover plate 3 is fixed to the top of the housing 1, the lower surface of the cover plate 3 will abut against the elastic buffer 2, preventing the test button 100 from moving axially under the action of external force, and blocking external wind force to avoid external wind force or vibration from acting on the button, thus achieving the protection of the test button 100. During the test, the cover plate 3 is removed, and the test button 100 is used normally.

[0037] It should be noted that the cover plate 3 is detachably fixed to the top of the housing 1. This means that the cover plate 3 can be fixed to the housing 1 with a zero-clearance fit, for example, by bolts or by pressing it onto the top of the housing 1. Specifically, in this embodiment, refer to... Figure 1 As shown, the top of the housing 1 is provided with a second screw hole 13; the cover plate 3 is provided with a third screw hole 32 that matches the second screw hole 13; the second screw hole 13 and the third screw hole 32 are used for bolt connection between the cover plate 3 and the housing 1.

[0038] In this embodiment, specifically, refer to Figure 1 and Figure 2 As shown, the outer side of the housing 1 is provided with a radially extending connecting lug 12, and the connecting lug 12 is provided with an axial first screw hole 121; the first screw hole 121 is for bolt connection to the connecting lug 12 and the power supply housing 200. It should be noted that the first screw hole 121, the second screw hole 13 and the third screw hole 32 each contain multiple fitting and similarly shaped ones, which can be clearly shown in the reference figure, but are not specifically shown in the figure.

[0039] Based on the configuration of connector 12, refer to Figure 1 As shown, specifically, the lower surface of the connecting ear 12 is flush with the lower bottom surface of the housing 1; the height of the connecting ear 12 is lower than the height of the housing 1.

[0040] refer to Figure 1 and Figure 2 As shown, the housing 1 is a square housing 1, and the connecting ears 12 include at least three; the three connecting ears 12 are respectively disposed on the first side, the second side and the third side of the housing 1; two opposite connecting ears 12 are respectively disposed close to the side ribs of the corresponding first side and the second side; the other connecting ear 12 is disposed in the middle of the corresponding third side; the side rib is away from the third side.

[0041] It should be noted that the terms "first," "second," and "third" are used only to clearly describe the different sides of the shell 1 and are not interpreted numerically. For specific details, please refer to [the relevant documentation / reference]. Figure 1As shown, the housing 1 is rectangular, and the cover plate 3 is also rectangular to match the shape of the housing 1, so that the side edge of the cover plate 3 is flush with the side wall of the housing 1; for example... Figure 2 As shown, the housing 1 is set as a square, and the cover plate 3 is set as a matching square; the side ribs are understood as the ribs of the square housing 1 parallel to the axial direction of the test button 100.

[0042] The housing 1 described in this utility model serves as a support and fixed connection. The cover plate 3 can be detachably fixed to the top of the housing 1. The housing 1 can be made of a relatively hard material to resist deformation and ensure windproof capability. Specifically, the housing 1 of this utility model can be a metal housing, and the cover plate 3 is a metal cover plate. For example, the housing 1 is an aluminum alloy housing, and the cover plate 3 is an aluminum alloy cover plate, forming an aluminum alloy protective cover. Using the heat dissipation grooves on the power supply casing, the housing 1 is fixed to the power supply casing 200 with three self-tapping screws. It has been verified by testing that a single screw can withstand the weight of the entire power supply, so the fixing strength is not a problem. The cover plate 3 is fixed to the top of the housing 1 with four screws. The test button can be used later by removing the cover plate 3.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective device for preventing accidental activation of a lamp testing button, characterized in that, include: The device comprises a housing (1), an elastic buffer (2), and a cover plate (3); the housing (1) is supported around the outside of the test button (100) and its bottom is fixed to the power supply housing (200) of the lamp; the elastic buffer (2) is fixed to the top of the test button (100); the height of the housing (1) is equal to the sum of the height of the top of the test button (100) and the height of the elastic buffer (2); the cover plate (3) is detachably fixed to the top of the housing (1), thereby causing the lower surface of the cover plate (3) to press against the elastic buffer (2).

2. The protective device for preventing accidental activation of the lamp test button according to claim 1, characterized in that, The elastic buffer (2) is an elastic rubber pad; the elastic rubber pad is fixedly connected to the top of the test button (100).

3. The protective device for preventing accidental activation of the lamp test button according to claim 1, characterized in that, The top of the housing (1) is provided with an axially protruding flange (11); the lower surface of the cover plate (3) is provided with a recess (31) that cooperates with the flange (11).

4. The protective device for preventing accidental activation of the lamp test button according to claim 1, characterized in that, The outer side of the housing (1) is provided with a radially extending connecting lug (12), and the connecting lug (12) is provided with an axial first screw hole (121); the first screw hole (121) is for bolt connection to the connecting lug (12) and the power supply housing (200).

5. The protective device for preventing accidental activation of the lamp test button according to claim 4, characterized in that, The lower surface of the connecting ear (12) is flush with the lower bottom surface of the housing (1); the height of the connecting ear (12) is lower than the height of the housing (1).

6. The protective device for preventing accidental activation of the lamp test button according to claim 4, characterized in that, The housing (1) is square, and the connecting ears (12) include at least three; the three connecting ears (12) are respectively disposed on the first side, the second side and the third side of the housing (1); two opposite connecting ears (12) are respectively disposed close to the side ribs of the first side and the second side; the other connecting ear (12) is disposed in the middle of the third side; the side rib is away from the third side.

7. The protective device for preventing accidental activation of the lamp test button according to claim 1, characterized in that, The top of the housing (1) is provided with a second screw hole (13); the cover plate (3) is provided with a third screw hole (32) that matches the second screw hole (13); the second screw hole (13) and the third screw hole (32) are used for bolting the cover plate (3) and the housing (1).

8. The protective device for preventing accidental activation of the lamp test button according to any one of claims 1-7, characterized in that, The housing (1) is a metal housing; the cover plate (3) is a metal cover plate.

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