A protective device for holding mechanical and electrical equipment

Abstract

This utility model relates to the field of electrical protection devices, and more particularly to a protective device for containing mechanical electrical equipment. Its technical solution includes: a lid mounted on a housing, the housing and lid being locked together by a locking mechanism; electrical components are installed inside the housing; and a loudspeaker is mounted on the lid. The locking mechanism includes a latch and a latch; the latch is mounted on the lid, and the latch is located on the housing; a limiting frame is provided on the housing outside the latch; a locking block is movably installed within the limiting frame; and the latch is limited by the locking block after engaging with the latch. This utility model utilizes the guiding cooperation between the latch and the latch; when the lid is closed, the locking block retracts, and a spring resets and presses the latch for quick engagement; a sliding guide rod ensures stable movement of the locking block, and double locking enhances vibration resistance; the loudspeaker integrates real-time feedback of equipment status, solving the problems of low locking efficiency, inconvenient maintenance, and limited functionality of traditional devices.

Description

Technical Field

[0001] This utility model relates to the field of electrical protection devices, specifically to a protective device for holding mechanical electrical equipment. Background Technology

[0002] With the development of industry, more and more electrical equipment is being put into production and daily life, and power lines are becoming more complex. How to monitor the operating status of equipment, ensure its normal operation, and detect faults in the line in a timely manner requires the use of protective devices for housing electrical automation equipment.

[0003] A search revealed that patent application number CN202220133534.1 discloses a protective device for holding mechanical and electrical equipment. Although the device can replace the filter without stopping the machine by setting up an arc-shaped filter screen and a guide arc groove structure, the device only focuses on dust prevention and heat dissipation functions and does not involve an efficient locking mechanism for the box body and the lid. This results in insufficient sealing reliability of the protective device, which is prone to loosening in a vibration environment. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a protective device for holding mechanical and electrical equipment, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A protective device for containing mechanical and electrical equipment includes a housing with a lid mounted on the housing, and the housing and the lid are locked together by a locking mechanism.

[0007] Electrical components are installed inside the box, and a loudspeaker is installed on the box cover;

[0008] The locking mechanism includes a latch and a buckle. The latch is installed on the lid and the buckle is located on the body. A limiting frame is provided on the body outside the buckle. A locking block is movably installed in the limiting frame. After the latch engages with the buckle, it is limited by the locking block.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the limiting frame has sliding grooves on both sides, and the locking block has guide rods on both sides. The locking block is slidably installed in the limiting frame through the cooperation of the guide rods and sliding grooves.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] The sliding engagement between the guide rod and the slide groove provides precise guidance for the locking block, preventing it from shifting or jamming during movement and ensuring the stability of the locking action. At the same time, the sliding structure can disperse the frictional force during the movement of the locking block, reduce component wear, extend service life, and facilitate the installation and removal of the locking block.

[0013] Furthermore, a spring is provided between the limiting frame and the card block, and the card block is supported within the limiting frame by the spring.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The automatic reset of the locking block is achieved by utilizing the elastic force of the spring, which can complete the pressing and fixing of the locking tongue without manual intervention, thus improving the convenience of operation. The spring can buffer external vibration, reduce the rigid impact between the locking block and the locking tongue, and reduce the risk of loosening. At the same time, by selecting springs with different elastic coefficients, the locking force requirements under different working conditions can be adapted.

[0016] Furthermore, the locking block is L-shaped and presses and fixes the end of the locking tongue.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The L-shaped structure allows the locking block to press and constrain the end of the latch from both horizontal and vertical directions, enhancing the limiting effect and preventing the latch from loosening or lifting. The larger contact area can disperse pressure and prevent the latch from deforming due to local stress concentration. At the same time, the L-shaped bend can block foreign objects from entering the mating gap, improving safety.

[0019] Furthermore, bolts are installed at the corners of the box body and the box cover. The locking mechanism and the box cover are locked together by the locking mechanism and then fixed by the bolts.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] A dual locking mechanism is formed, consisting of "rapid positioning of the locking mechanism + secondary reinforcement of bolts". The bolts provide high-strength tightening force in the vertical direction, which complements the horizontal limit of the locking mechanism, significantly improving the device's resistance to vibration and impact. The bolt layout at the corners ensures uniform force distribution, reducing the risk of structural deformation. Furthermore, the detachable bolt design facilitates quick opening of the cover during maintenance, balancing reliability and convenience.

[0022] This utility model provides a protective device for containing mechanical and electrical equipment. It has the following beneficial effects:

[0023] The locking latch guides the bolt, and the spring-loaded automatic retraction and reset of the locking block eliminates the need for complex alignment during lid closure; initial engagement can be completed with one hand, improving assembly efficiency. Once the bolt and latch are aligned, the locking block, through its L-shaped structure, quickly presses against the bolt end, achieving a rapid "lock and engage" positioning effect and reducing manual adjustment time.

[0024] The locking block and the latch tongue are fixed together by the guide rod and the sliding limiter, forming a double constraint from both the horizontal direction (limiting the movement of the latch tongue) and the vertical direction (pressing down on the end of the latch tongue), preventing the locking mechanism from loosening due to external forces such as vibration. The spring provides a continuous restoring force, ensuring that the locking block always tightly presses down on the latch tongue, avoiding the problem of increased gaps caused by long-term use of traditional mechanical locks, and ensuring the sealing and safety of the protective device for long-term use. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the main appearance of this utility model;

[0028] Figure 2 This is a schematic diagram of the open structure of this utility model;

[0029] Figure 3 This is a rear view schematic diagram of the locking mechanism of this utility model;

[0030] Figure 4 This is a front view schematic diagram of the locking mechanism of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Locking mechanism; 101. Locking tongue; 102. Spring; 103. Limiting frame; 104. Locking block; 105. Locking buckle; 106. Slide groove; 107. Guide rod; 2. Box body; 3. Cooling fan; 4. Box cover; 5. Electrical components; 6. Amplifier. Detailed Implementation

[0033] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0035] Example 1

[0036] A protective device for containing mechanical and electrical equipment includes a housing 2 with a cover 4 mounted on it. The housing 2 and cover 4 are locked together by a locking mechanism 1. Bolts are installed at the corners of the housing 2 and cover 4. After the locking mechanism 1 and cover 4 are locked together, they are further secured by bolts, forming a dual locking mechanism of "quick positioning by the locking mechanism 1 + secondary reinforcement by bolts." The bolts provide high-strength tightening force in the vertical direction, complementing the horizontal limiting of the locking mechanism 1, significantly improving the device's vibration and impact resistance. The bolt layout at the corners ensures uniform stress distribution, reducing the risk of structural deformation. The detachable bolt design facilitates quick opening of the cover 4 during maintenance, balancing reliability and convenience. Electrical components 5 are installed inside the housing 2, and a speaker is installed on the cover 4. Device 6; The locking mechanism 1 includes a locking tongue 101 and a latch 105. The locking tongue 101 is mounted on the cover 4, and the latch 105 is located on the body 2. A limiting frame 103 is provided on the body 2 outside the latch 105. A locking block 104 is movably installed inside the limiting frame 103. After the locking tongue 101 and the latch 105 are engaged, they are limited by the locking block 104. The locking block 104 is L-shaped and presses and fixes the end of the locking tongue 101. The L-shaped structure allows the locking block 104 to press and constrain the end of the locking tongue 101 from both horizontal and vertical directions, enhancing the limiting effect and preventing the locking tongue 101 from loosening or tilting. The larger contact area can disperse pressure and prevent the locking tongue 101 from deforming due to local stress concentration. At the same time, the L-shaped bend can block foreign objects from entering the mating gap, improving the safety of protection.

[0037] Example 2

[0038] To ensure the accuracy, stability, and ease of use of the locking mechanism when the box and lid are closed, for example, such as... Figures 1 to 4As shown, this utility model also includes: when the box body 2 and the box cover 4 are closed, the locking tongue 101 is guided by the latch 105 and first pushes the locking block 104 to retract within the limiting frame 103. When the through hole of the locking tongue 101 is aligned with the latch 105, the locking tongue 101 is tightly attached to the box body 2. At this time, the locking block 104 is reset by the spring 102 and the locking block 104 presses and fixes the end of the locking tongue 101. The limiting frame 103 has sliding grooves 106 on both sides, and the locking block 104 has guide rods 107 on both sides. The locking block 104 is slidably installed in the limiting frame 103 through the cooperation of the guide rods 107 and the sliding grooves 106. The sliding cooperation between the guide rods 107 and the sliding grooves 106 provides precise guidance for the locking block 104, preventing the locking block 104 from shifting or jamming during movement, and ensuring the stability of the locking action. At the same time, the sliding structure can disperse the frictional force of the locking block 104 during movement, reduce component wear, extend service life, and facilitate the locking block 104. For installation and disassembly, a spring 102 is provided between the limiting frame 103 and the locking block 104. The locking block 104 is supported within the limiting frame 103 by the spring 102. The elastic force of the spring 102 is used to realize the automatic reset of the locking block 104, which can complete the pressing and fixing of the locking tongue 101 without manual intervention, thus improving the convenience of operation. The spring 102 can buffer external vibration, reduce the rigid impact between the locking block 104 and the locking tongue 101, and reduce the risk of loosening. At the same time, by selecting springs 102 with different elastic coefficients, the locking force requirements under different working conditions can be adapted.

[0039] Working principle:

[0040] The protective device is in the open state, and the box body 2 is separated from the box cover 4. The box body 2 is equipped with a latch 105, a limiting frame 103, and internal electrical components 5, while the box cover 4 is equipped with a locking tongue 101 and a loudspeaker 6. The locking block 104 inside the limiting frame 103 is supported by a spring 102 and is in a naturally extended state, waiting to cooperate with the locking tongue 101.

[0041] Cover the box body 2 with the lid 4 to close it. During the closing process, the latch 101 on the lid 4 contacts the latch 105 on the box body 2. The latch 105 acts as a guide, guiding the movement of the latch 101. As the latch 101 continues to move, it pushes the locking block 104 located in the limiting frame 103, causing the locking block 104 to retract within the limiting frame 103 against the elastic force of the spring 102, thus making room for the latch 101 to pass through.

[0042] When the lid 4 is fully closed, the through hole of the latch 101 aligns with the latch 105, at which point the latch 101 is pressed tightly against the surface of the box body 2. After the pushing force of the latch 101 is lost, the locking block 104 automatically pops out under the restoring force of the spring 102, using its own L-shaped structure to press and fix the end of the latch 101. The locking block 104 slides through the guide rod 107 that cooperates with the sliding groove 106 in the limiting frame 103, accurately resetting and restricting the movement of the latch 101, thereby completing the initial fixing of the box body 2 and the lid 4 by the locking mechanism 1, and quickly achieving the snap-fit ​​positioning of the two.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective device for containing mechanical and electrical equipment, comprising a housing (2), wherein a lid (4) is mounted on the housing (2), and the housing (2) and the lid (4) are locked together by a locking mechanism (1), characterized in that: Electrical components (5) are installed inside the box body (2), and a loudspeaker (6) is installed on the box cover (4); The locking mechanism (1) includes a locking tongue (101) and a latch (105). The locking tongue (101) is installed on the lid (4), and the latch (105) is located on the body (2). A limiting frame (103) is provided on the body (2) outside the latch (105). A locking block (104) is movably installed in the limiting frame (103). After the locking tongue (101) and the latch (105) are engaged, they are limited by the locking block (104).

2. The protective device for containing mechanical and electrical equipment according to claim 1, characterized in that: The limiting frame (103) has sliding grooves (106) on both sides, and the locking block (104) has guide rods (107) on both sides. The locking block (104) is slidably installed in the limiting frame (103) through the cooperation of the guide rods (107) and the sliding grooves (106).

3. The protective device for containing mechanical and electrical equipment according to claim 1, characterized in that: A spring (102) is provided between the limiting frame (103) and the locking block (104), and the locking block (104) is supported in the limiting frame (103) by the spring (102).

4. The protective device for containing mechanical and electrical equipment according to claim 1, characterized in that: The locking block (104) is L-shaped and presses and fixes the end of the locking tongue (101).

5. A protective device for containing mechanical and electrical equipment according to claim 1, characterized in that: Bolts are installed at the corners of the box body (2) and the box cover (4). The locking mechanism (1) and the box cover (4) are locked by the locking mechanism (1) and then fixed by bolts.

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