Explosion-proof box panel button operation mechanism

Abstract

The utility model discloses an explosion-proof box panel button operation mechanism, which relates to the explosion-proof electrical field and comprises a button main body, the button main body comprises an outer shaft sleeve and a push rod, the push rod is arranged in the outer shaft sleeve in a sliding manner, and the push rod elastically slides between the outer shaft sleeve and the outer shaft sleeve; a limiting structure used for preventing rotation between the outer shaft sleeve and the push rod is arranged at the other end of the outer shaft sleeve and the other end of the push rod and comprises a sliding groove formed in the inner wall of the other end of the outer shaft sleeve and a sliding strip arranged on the outer surface of the other end of the push rod. The sliding strip is arranged in the sliding groove in a sliding mode and used for limiting rotation of the outer shaft sleeve and the push rod. Under the action of the limiting structure, the outer shaft sleeve and the push rod can only do telescopic movement and cannot rotate between the outer shaft sleeve and the push rod, so that the abrasion between the outer shaft sleeve and the push rod during movement is reduced, the service life of the explosion-proof button is prolonged, and the frequency of regular inspection and replacement of the explosion-proof button is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof electrical equipment, and in particular to a button operating mechanism for an explosion-proof box panel. Background Technology

[0002] Explosion-proof control boxes are used in specific applications, such as in environments with explosive mixtures of flammable gases or vapors with air, and in environments with flammable dust. Explosion-proof control boxes include those for controlling power systems and those for explosion-proof weighing systems. Typically, buttons are installed on these boxes; pressing these buttons triggers switches within the box to perform corresponding operations. To enhance explosion-proof safety, these buttons must also be designed to be explosion-proof.

[0003] Existing technology, such as the authorized announcement number: CN213958830U, discloses an explosion-proof trigger button for an explosion-proof control box. The explosion-proof control box includes a box cover, and the explosion-proof trigger button includes a cylindrical button adapter sleeve, a button shaft, a cylindrical button cap, and a spring.

[0004] The existing explosion-proof buttons have a flexible button shaft that is placed inside a button adapter sleeve. Pressing the button shaft extends the button adapter sleeve and triggers the switch inside the control box. However, in actual operation, the flexible button shaft is prone to rotation inside the button adapter sleeve during pressing, causing further friction between the contact surfaces. Over time, this increases wear on the button adapter sleeve and button shaft, resulting in excessive gaps in the connection surfaces that fail to meet explosion-proof requirements and reduce the lifespan of the explosion-proof button. Therefore, regular inspection and replacement are necessary. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a button operating mechanism for an explosion-proof box panel, so as to solve the problem that the button is prone to rotation in the button adapter sleeve during the pressing process, which increases wear.

[0006] This utility model provides the following technical solution: an explosion-proof box panel button operation mechanism, including a button body, the button body including an outer bushing and a push rod, the push rod being slidably placed inside the outer bushing and elastically sliding between them;

[0007] The outer bushing and the other end of the push rod are provided with a limiting structure to prevent rotation between the outer bushing and the push rod.

[0008] Beneficial effects: Under the action of the limiting structure, the outer bushing and push rod can only move in a telescopic manner and cannot rotate between them, which reduces the wear between the outer bushing and push rod during movement, improves the service life of the explosion-proof button, and thus reduces the number of times the explosion-proof button needs to be inspected and replaced regularly.

[0009] Preferably, the outer bushing includes a connecting part connected to the explosion-proof box and an abutting part located outside the explosion-proof box. A spring is connected inside the abutting part, and a pressing plate is fitted at one end of the push rod. The pressing plate is located inside the abutting part and connected to the spring.

[0010] Preferably, the abutment portion has an assembly chamber inside, a spring is connected inside the assembly chamber and surrounds the outside of the push rod, and a pressing plate is slidably connected to one end of the assembly chamber for compressing the spring.

[0011] Preferably, the limiting structure includes a groove formed on the inner wall of the other end of the outer bushing, and the limiting structure also includes a slide bar disposed on the outer surface of the other end of the push rod. The slide bar is slidably placed in the groove to limit the rotation of the outer bushing and the push rod.

[0012] Preferably, the length of the groove is the same as the depth of the assembly chamber, so that the groove blocks the retracted slide bar and makes the end face of the pressing plate flush with the abutment part.

[0013] Through the above technical means, the slide groove blocks the retracted slide bar, effectively preventing the press plate and push rod from being ejected from the outer bushing by the spring force, and making the end face of the press plate flush with the abutment part, thus improving the aesthetics of the explosion-proof button.

[0014] Preferably, the outer surface of the connecting part is provided with external threads.

[0015] Preferably, the push rod has a hollow structure.

[0016] By employing the aforementioned technical means, the weight of the push rod is reduced, making it easier for the push rod to push and rebound.

[0017] Preferably, the switch control for the explosion-proof box includes a box panel, a lead screw, a support plate, and a switch. The lead screw is vertically connected to the box panel, the support plate is mounted on the lead screw and parallel to the box panel, and the switch is mounted on the support plate.

[0018] Preferably, the outer bushing is threaded onto the housing panel and corresponds to the switch. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the button of this utility model.

[0020] Figure 2 This is a schematic diagram of the bottom structure of the button of this utility model.

[0021] Figure 3 This is a schematic diagram of the button assembly structure of this utility model.

[0022] The attached diagram is labeled as follows: 1. Outer bushing; 2. Push rod; 3. Press plate; 4. Spring; 5. Slide groove; 6. Slide bar; 7. Box panel; 8. Lead screw; 9. Support plate; 10. Switch. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0024] This utility model provides a button operation mechanism for an explosion-proof box panel.

[0025] Example 1

[0026] like Figure 1-3 As shown, the device includes a button body, which includes an outer bushing 1 and a push rod 2. The push rod 2 is slidably placed inside the outer bushing 1, and the outer bushing 1 and the push rod 2 slide elastically, allowing the push rod 2 to freely extend and retract inside the bushing 1.

[0027] The outer bushing 1 and the push rod 2 are provided with a limiting structure at the other end to prevent rotation between the outer bushing 1 and the push rod 2. Under the action of the limiting structure, the outer bushing 1 and the push rod 2 can only move in a telescopic manner and cannot rotate between them, thereby reducing wear during movement between the outer bushing 1 and the push rod 2, increasing the service life of the explosion-proof button, and thus reducing the frequency of periodic inspection and replacement of the explosion-proof button.

[0028] In this embodiment, the outer bushing 1 includes a connecting part connected to the explosion-proof box and an abutting part located on the outside of the explosion-proof box. Both the connecting part and the abutting part are hollow cylindrical structures and are coaxially arranged. A spring 4 is connected inside the abutting part, and a pressing plate 3 is assembled at one end of the push rod 2. The pressing plate 3 is placed inside the abutting part and connected to the spring 4.

[0029] Specifically, the abutment part has an assembly chamber inside, the spring 4 is connected inside the assembly chamber and surrounds the push rod 2, and the pressing plate 3 is slidably connected to one end of the assembly chamber to compress the spring 4.

[0030] In use, the spring 4 is squeezed by the pressing plate 3, causing one end of the push rod 2 to extend out of the connecting part of the outer bushing 1. When the pressing plate 3 is released, the pressing plate 3 returns to its original position under the elastic force of the spring 4, and one end of the push rod 2 retracts to the connecting part of the outer bushing 1.

[0031] In this embodiment, the limiting structure includes a groove 5 formed on the inner wall of the other end of the outer bushing 1, and a slide bar 6 disposed on the outer surface of the other end of the push rod 2. The slide bar 6 is slidably placed in the groove 5 to limit the rotation of the outer bushing 1 and the push rod 2. When the push rod 2 and the outer bushing 1 undergo telescopic movement, the slide bar 6 slides in the groove 5, and the slide bar 6 and the groove 5 slide together to limit the rotation between the push rod 2 and the outer bushing 1.

[0032] In this embodiment, the length of the slide groove 5 is the same as the depth of the assembly chamber, so that the slide groove 5 blocks the retracted slide bar 6, effectively preventing the pressing plate 3 and the push rod 2 from being ejected from the outer bushing 1 by the elastic force of the spring 4, and making the pressing plate 3 flush with the end face of the abutment part, thus improving the aesthetics of the explosion-proof button.

[0033] In this embodiment, the push rod 2 has a hollow structure, which reduces the weight of the push rod 2 and facilitates the pushing and rebounding of the push rod 2.

[0034] The switch control for the explosion-proof box includes a box panel 7, a lead screw 8, a bracket plate 9, and a switch 10. The lead screw 8 is vertically connected to the box panel 7, the bracket plate 9 is mounted on the lead screw 8 and is parallel to the box panel 7, and the switch 10 is mounted on the bracket plate 9.

[0035] The outer surface of the connecting part is provided with external threads, so that the outer bushing 1 is threadedly assembled on the housing panel 7 and corresponds to the switch 10.

[0036] The working principle of this utility model is as follows: When switching on or off the switch 10 inside the explosion-proof box, press the pressing plate 3 to push the push rod 2 to move and compress the spring 4. When the push rod 2 moves inside the outer bushing 1, the slide bar 6 also slides in the slide groove 5, so that the outer bushing 1 and the push rod 2 can only have telescopic movement. Continue to press the pressing plate 3 until the push rod 2 contacts the switch 10 to press, thus completing the operation.

[0037] Example 2

[0038] There are two sets of limiting structures, which are symmetrically distributed. That is, two symmetrically distributed sliding grooves 5 are opened on the inner wall of the other end of the outer bushing 1, and two sliding strips 6 are set on the outer surface of the other end of the push rod 2. The positions of the two sliding strips 6 and the sliding grooves 5 correspond one-to-one, and the sliding strips 6 and the sliding grooves 5 slide in cooperation.

[0039] Example 3

[0040] There are four sets of limiting structures, which are symmetrically distributed. That is, four symmetrically distributed sliding grooves 5 are provided on the inner wall of the other end of the outer bushing 1, and four sliding strips 6 are provided on the outer surface of the other end of the push rod 2. The positions of the four sliding strips 6 and the sliding grooves 5 correspond one-to-one, and the sliding strips 6 and the sliding grooves 5 slide in cooperation.

[0041] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0042] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. An explosion-proof enclosure panel button operating mechanism comprising a button body, characterized by: The button body comprises an outer sleeve (1) and a push rod (2), the push rod (2) is slidably arranged inside the outer sleeve (1), and they elastically slide relative to each other; The outer sleeve (1) and the other end of the push rod (2) are provided with a limiting structure for preventing rotation between the outer sleeve (1) and the push rod (2).

2. A panel button operating mechanism for an explosion-proof enclosure according to claim 1, wherein: The outer sleeve (1) comprises a connecting portion connected with the explosion-proof box and an abutting portion arranged outside the explosion-proof box, the inside of the abutting portion is connected with a spring (4), one end of the push rod (2) is provided with a pressing plate (3), and the pressing plate (3) is arranged in the abutting portion and connected with the spring (4).

3. A flameproof tank panel pushbutton operating mechanism according to claim 2, characterised in that: The inside of the abutting portion is provided with an assembly chamber, the spring (4) is connected in the assembly chamber and surrounds the outer periphery of the push rod (2), and the pressing plate (3) is slidably connected at one end of the assembly chamber for pressing the spring (4).

4. A flameproof tank panel pushbutton operating mechanism according to claim 3, characterised in that: The limiting structure comprises a sliding groove (5) formed in the inner wall of the other end of the outer sleeve (1), and the limiting structure further comprises a sliding strip (6) arranged on the outer surface of the other end of the push rod (2), the sliding strip (6) is slidably arranged in the sliding groove (5) for limiting rotation of the outer sleeve (1) and the push rod (2).

5. A flameproof tank panel pushbutton operating mechanism according to claim 4, wherein: The length of the sliding groove (5) is the same as the depth of the assembly chamber, so that the sliding groove (5) blocks the retracted sliding strip (6), and the pressing plate (3) is flush with the end surface of the abutting portion.

6. A flame arrestant cabinet panel button operating mechanism as defined in claim 2 wherein: The outer surface of the connecting portion is provided with external threads.

7. A flame arrestant enclosure faceplate button operating mechanism as defined in claim 1 wherein: The push rod (2) is a hollow structure.

8. A flameproof tank panel button operating mechanism according to any one of claims 1 to 7, characterised in that: The switch control for the explosion-proof box comprises a box panel (7), a lead screw (8), a support plate (9), and a switch (10), the lead screw (8) is connected perpendicularly to the box panel (7), the support plate (9) is assembled on the lead screw (8) and is parallel to the box panel (7), and the switch (10) is assembled on the support plate (9).

9. A flameproof tank panel pushbutton operating mechanism according to claim 8, characterised in that: The outer sleeve (1) is threadedly assembled on the box panel (7) and corresponds to the switch (10).

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