CN214254939U

CN214254939U - Explosion-proof socket with indication function

Info

Publication number: CN214254939U
Application number: CN202120649684.3U
Authority: CN
Inventors: 李中军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-09-21
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses an explosion-proof socket with indication function, which comprises a bottom shell, an upper cover, an L pole terminal, an N pole terminal and a grounding terminal, wherein the upper cover is provided with a plurality of jack structures, the surface of the upper cover is provided with an indication slotted hole, an indicator lamp is arranged in the indication slotted hole, a positioning clamping platform component which limits the indicator lamp in the indication slotted hole is arranged between the bottom shell, the upper cover and the indicator lamp, the installation stability of the indicator lamp is ensured, the phenomenon of shaking and loosening is not generated, the indicator lamp is electrically connected between the L pole terminal and the N pole terminal through two lead wire structures, the electrical connection relation between the indicator lamp and the explosion-proof socket is realized, the indicator lamp can be displayed and lightened when the explosion-proof socket is connected with power, so that a user and an operator can conveniently know whether the explosion-proof socket is normally powered on from the outside, the observation is clear, and the working state information can be fed back in time, the operation and use are ensured to be safer and more reliable.

Description

Explosion-proof socket with indication function

Technical Field

The utility model relates to a socket technical field, concretely relates to explosion-proof socket of area instruction function.

Background

In different occasions, the requirements on the socket are different, some places require the socket to be waterproof, some places require the socket to be firm and durable, and some places require the socket to have an explosion-proof function. When the plug of the electric appliance is pulled out of the socket, sparks are generated at the moment of contact separation due to the existence of loads, the socket contact and the plug contact of the socket can be eroded continuously due to the existence of electric sparks, the socket contact and the plug contact can be burnt out seriously, in addition, explosion accidents are easily caused by sparks and heat of the power supply contact in flammable and explosive places, and therefore the anti-explosion socket can be used.

The explosion-proof socket is a special control device used in various high-risk places, is used in places with dangerous gas around and is used for controlling products of electric circuits, the shell is pressed by aluminum alloy, all electric elements inside are subjected to explosion-proof treatment, and all electric elements capable of generating electric sparks are sealed to isolate the electric elements from the dangerous gas outside. The existing explosion-proof socket mainly comprises a base, a flip cover and a face cover with a plurality of jacks, wherein a slidable socket protective door is arranged between the base and the face cover, and the socket protective door is used for covering and shielding three jacks and two jacks on the face cover. However, the conventional explosion-proof socket in the market does not have an indication function for displaying the working state of the explosion-proof socket, that is, a user cannot conveniently know whether the explosion-proof socket is normally powered on from the outside, generally, whether the explosion-proof socket is powered on can be indirectly known through the power-on condition of external load equipment, the operation process is complicated, a lot of inconvenience is caused, and if the external load equipment fails, the failure can not be timely fed back, so that the maintenance work of electrical equipment and circuits is inconvenient, and the work process is easily delayed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to overcome the not enough of existence among the prior art to provide one kind and conveniently learn whether explosion-proof socket normally circular telegram work, use safe and reliable's explosion-proof socket of function of indicateing.

In order to achieve the purpose, the utility model provides an explosion-proof socket with instruction function, be in including drain pan, upper cover and setting L utmost point terminal, N utmost point terminal and ground terminal in the cavity that forms between drain pan and the upper cover, the upper cover has a plurality of jack structures, the instruction slotted hole has been seted up on the upper cover surface, install the pilot lamp in the instruction slotted hole, the pilot lamp has to wear to stretch the drain pan with two lead structure between the upper cover, two lead structure electricity are connected L utmost point terminal with between the N utmost point, drain pan and upper cover with be provided with between the pilot lamp with the pilot lamp is spacing in instruct the locator card platform subassembly in the slotted hole.

In the above-mentioned explosion-proof socket with indication function, the positioning clamping platform assembly comprises at least two positioning clamping plates surrounding the indication slot hole and oppositely arranged on the bottom surface of the upper cover, and a clamping groove channel formed between the two positioning clamping plates along the axial extension of the indication slot hole, and the indicator light extrudes and penetrates through the clamping groove channel and then extends into the indication slot hole.

In the above-mentioned explosion-proof socket of area instruction function, two be provided with at least one sand grip structure on the medial surface of location cardboard orientation draw-in groove passageway, the pilot lamp inserts during the draw-in groove passageway with sand grip structure cooperation extrusion contact, the sand grip structure is followed location cardboard length direction extends the settlement distance.

In the above-mentioned explosion-proof socket of area instruction function, be equipped with spacing boss on the lateral wall that the pilot lamp is close to its bottom, spacing boss and the bottom cooperation butt of location cardboard.

In the above-mentioned explosion-proof socket with indication function, the positioning clamping table assembly further comprises two positioning convex rods vertically arranged in the bottom shell, the two positioning convex rods extend and abut against the bottom end of the indicator light, and the top end of the indicator light is accommodated in the indicating slot hole.

In the above-mentioned explosion-proof socket with indication function, the location ka tai subassembly includes around the indication slotted hole sets up relatively two elasticity buckles of upper cover bottom surface, the tip of elasticity buckle is the pothook end, the pothook end is in when the pilot lamp inserts between two elasticity pothooks, the knot supports the pilot lamp bottom.

In the above-mentioned explosion-proof socket with indication function, relative being formed with between two location protruding poles can hold two lead wire structure's installation gap, two lead wire structure along the installation gap is in extend in the drain pan and arrange, the drain pan bottom is equipped with the pin hole that can supply two lead wire structure to stretch out, L utmost point terminal, N utmost point terminal and ground terminal have respectively to set up and are in a plurality of wiring holes of drain pan bottom, two lead wire structure pass through the wiring hole is connected respectively L utmost point terminal and N utmost point terminal.

In the above-mentioned explosion-proof socket of function is instructed in area, the upper cover is including being equipped with jack structure with the boss portion of instruction slotted hole, the upper cover is provided with the rotatable shroud of opening or closing, the shroud is closing the time phase matching and is covering boss portion, jack structure includes two jacks and three jacks.

In the above-mentioned explosion-proof socket with indication function, the drain pan with be provided with the installation medium plate between the upper cover, the installation medium plate has the storage tank and sets up in the storage tank with the corresponding connecting hole of jack structure, the slidable is provided with two slider baffles in the storage tank, and sets up an at least spring between two slider baffles, the slider baffle is in shelter from under the spring action jack structure to receive crowded the slip of stepping down when the plug inserts jack structure.

In the above-mentioned explosion-proof socket with indication function, the upper cover has an upper cavity part, the drain pan correspondence has a lower cavity part, the upper cover with the drain pan keeps fixed mounting through connection structure, connection structure is including setting up at least one spacing recess on the upper cavity part inner wall, and correspond to establish on the drain pan top outer wall and be fit for inserting at least one spacing boss of spacing recess, and pass the drain pan with the fixed continuous limit baffle of upper cover, limit baffle encircles the open end setting of upper cavity part and will spacing boss support and block in the spacing recess.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model provides an among the explosion-proof socket of band light function, through installing an pilot lamp in the instruction slotted hole on upper cover surface to reliably be spacing with the pilot lamp through locator card platform subassembly in the instruction slotted hole, guarantee the installation stability of pilot lamp, this pilot lamp through its two lead wire structure and L extreme with N extreme links to each other, realizes the electric connection relation between pilot lamp and the explosion-proof socket, consequently, the pilot lamp also can show when explosion-proof socket switch-on power, makes user and operating personnel can learn whether explosion-proof socket normally circular telegram work from the outside very conveniently, observes clearly brightly to can in time feed back operating condition information, guarantee to operate more safe and reliable.

2. The utility model provides an among the explosion-proof socket of band light function, through centering on at the upper cover bottom surface and instructing the slotted hole and being provided with two location cardboards relatively, and form the draw-in groove passageway that is linked together with the instruction slotted hole between two location cardboards, this kind of structure sets up, as long as go into the draw-in groove passageway between two location cardboards with the pilot lamp card, and can accurately insert to instructing the slotted hole along the draw-in groove passageway, play extrusion chucking effect to the pilot lamp through two location cardboards, reach tight fit installation effect, prevent the pilot lamp is rocking or slippage phenomenon in instructing the slotted hole, and installation stability is good, guarantees the pilot lamp at the indicating effect on explosion-proof socket.

3. The utility model provides an among the explosion-proof socket of band light function, pass at the pilot lamp extrusion the in-process that the slot channel inserted the pilot groove hole, when spacing boss on the pilot lamp lateral wall and the bottom looks butt of location cardboard, show promptly the pilot lamp is pegged graft and is targetting in place to play spacing installation effect to the pilot lamp, outside avoiding the too big and surpassing the pilot groove hole of the insertion distance of pilot lamp, can insert the rational design of distance according to the pilot lamp like this, can guarantee that the pilot lamp is pegged graft when targetting in place just in time with upper cover surface parallel and level, the outward appearance is neat pleasing to the eye.

4. The utility model provides an among the explosion-proof socket of area instruction function, in the equipment during upper cover and drain pan equipment, drain pan and upper cover are earlier pegged graft together through the cooperation of spacing boss with spacing recess, then pass limit baffle behind the drain pan with upper cover fixed connection to support spacing boss in spacing recess through limit baffle, prevent spacing boss is deviate from in the spacing recess, thereby make the upper cover with the drain pan keeps relative mounted position fixed, and this kind of connection structure sets up simply, and simple to operate is favorable to improving the installation effectiveness.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of an explosion-proof socket provided by the present invention;

fig. 2 is a schematic view of a split structure of the explosion-proof socket of the present invention;

FIG. 3 is a schematic view of the installation structure of the indicator light and the positioning protruding rod of the present invention;

FIG. 4 is a schematic view of the installation structure of the indicator light and the positioning clip board of the present invention;

FIG. 5 is a schematic view of a partially enlarged structure of the positioning card shown in FIG. 4;

FIG. 6 is a schematic structural view of the lead structure of the present invention penetrating through the lead hole;

description of reference numerals: 1-bottom shell, 11-lead hole, 2-upper cover, 21-jack structure, 22-indicating slotted hole, 23-boss part, 24-upper cavity part, 2-cover cap, 31-L pole terminal, 32-N pole terminal, 33-grounding terminal, 4-indicating lamp, 41-lead structure, 42-limiting boss, 5-positioning clamp plate, 51-clamp groove channel, 52-convex strip structure, 6-positioning convex rod, 7-cover cap, 81-installation middle plate, 82-slide block baffle, 83-spring, 91-limiting groove, 92-limiting boss and 93-limiting baffle.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

the embodiment provides an explosion-proof socket with an indication function as shown in fig. 1-6, which comprises a bottom shell 1, an upper cover 2, and an L pole terminal 31, an N pole terminal 32 and a ground terminal 33 which are arranged in a cavity formed between the bottom shell 1 and the upper cover 2, wherein the upper cover is provided with a plurality of jack structures 21, the surface of the upper cover 2 is provided with an indication slot hole 22, an indication lamp 4 is installed in the indication slot hole 22, the indication lamp 4 is provided with two lead structures 41 penetrating between the bottom shell and the upper cover, the two lead structures 41 are electrically connected between the L pole terminal and the N pole terminal, and a positioning clamping table assembly which limits the indication lamp 4 in the indication slot hole 22 is arranged between the bottom shell 1 and the upper cover 2 and between the indication lamp 4.

In the above embodiment, the indicating lamp 4 is installed in the indicating slot on the surface of the upper cover 2, and the indicating lamp 4 is reliably limited in the indicating slot 22 through the positioning clamping table assembly, so that the installation stability of the indicating lamp 4 is ensured, the indicating lamp 4 is connected with the L pole terminal and the N pole terminal through two lead wire structures of the indicating lamp 4, and the electrical connection relation between the indicating lamp 4 and the explosion-proof socket is realized, therefore, the indicating lamp 4 can also display and light when the explosion-proof socket is powered on, so that a user and an operator can conveniently know whether the explosion-proof socket is normally powered on from the outside, the observation is clear, the information interaction effect is achieved, the working state information can be timely fed back, and the operation is ensured to be safer and more reliable.

The specific arrangement of the positioning chuck assembly is described in detail below with reference to fig. 3-5:

the positioning clamping table component comprises two positioning clamping plates 5 which are oppositely arranged on the bottom surface of the upper cover 2 around the indicating slotted hole 22, and a clamping groove channel 51 which is formed between the two positioning clamping plates 5 along the axial extension of the indicating slotted hole 22, namely, the clamping groove channel is communicated with the indicating slotted hole, the indicating lamp 4 extrudes and penetrates through the clamping groove channel and then extends into the indicating slotted hole 3, the mounting structure adopts a close-fitting mounting mode, as long as the indicating lamp 4 is clamped into the clamping groove channel 51 between the two positioning clamping plates 5 and can be accurately inserted into the indicating slotted hole 22 along the clamping groove channel, the indicating lamp 4 is extruded and clamped through the two positioning clamping plates 5, the close-fitting mounting effect is achieved, the phenomenon that the indicating lamp 4 shakes or loosens in the indicating slotted hole 22 is prevented, the mounting is convenient and rapid, and the stability is good, the indicating effect of the indicating lamp on the explosion-proof socket is ensured.

For guaranteeing the pilot lamp 4 is pegged graft installation stability in the draw-in groove passageway 51, two location cardboard 5 orientation be provided with at least one sand grip structure 52 on the medial surface of draw-in groove passageway 51, pilot lamp 4 inserts during draw-in groove passageway 51 with sand grip structure 52 cooperation extrusion contact, sand grip structure 52 is followed the length direction of location cardboard extends the settlement distance, and the design makes the pilot lamp alternates the process receive during draw-in groove passageway 51 the squeezing action of sand grip structure 52, through sand grip structure 52 can strengthen pilot lamp 4 and two the contact compactness between the location cardboard 5, the installation chucking effect is better, and the cooperation is fixed reliable.

As shown in fig. 4, the side wall of the indicator lamp 4 near the bottom end thereof is provided with a limit boss 42, the limit boss 42 is abutted to the bottom end of the positioning clamping plate 5 in a matching manner, and when the indicator lamp penetrates through the clamping groove channel in the extrusion manner and is inserted into the indicating groove hole, when the limit boss on the indicator lamp 4 is abutted to the bottom end of the positioning clamping plate, the indicator lamp 4 is indicated to be inserted in place, so that the indicator lamp is limited and mounted, and the indicator lamp 4 is prevented from being inserted too far beyond the indicating groove hole 22.

As a preferred embodiment, the positioning clamping table assembly further comprises two positioning convex rods 6 vertically arranged in the bottom shell 1, after the upper cover and the bottom shell are installed in a matched mode, the two positioning convex rods 6 are just right made to extend and abut against the bottom end of the indicating lamp 4, so that the indicating lamp 4 is limited and clamped between the clamping groove channel and the indicating groove hole, the top end of the indicating lamp 4 is contained in the indicating groove hole, the indicating lamp 4 can be prevented from slipping out of the indicating groove hole when being influenced by vibration or extrusion pushing of external force due to the design, the installation stability of the indicating lamp 4 in the indicating groove hole 22 is greatly improved, and the matching is fixed and reliable.

As an alternative to the above embodiment, although the above embodiment has been given with the cooperation of the positioning snap-gauge and the positioning protruding rod as a preferred solution, it is obvious that the positioning snap-gauge assembly can also be arranged by selecting the following structure: the positioning clamping platform assembly comprises two elastic clamping buckles which are oppositely arranged around the indicating slotted hole 22 and are arranged on the bottom surface of the upper cover 2, the end parts of the elastic clamping buckles are clamping hook ends, the indicating slotted hole is smaller than the top end of the indicating lamp in the opening design of the surface of the upper cover, and the top end of the indicating lamp is just accommodated in the indicating slotted hole. Those skilled in the art can select a specific structure of the positioning chuck structure according to the above description, and further details of other equivalent embodiments are not described herein.

As a preferred embodiment, as shown in fig. 3 and 6, two positioning protruding rods 6 are oppositely formed with a mounting gap capable of accommodating two lead structures 41, two lead structures 41 are arranged along the mounting gap and extend in the bottom case 1, two lead structures 41 are two wires, the indicator light 4 is preferably an LED light, the bottom of the bottom shell 1 is provided with a lead hole 11 for two lead structures to extend out, the L-pole terminal 31, the N-pole terminal 32 and the ground terminal 32 have a plurality of wiring holes provided at the bottom of the bottom case 1, respectively, through which two lead structures 41 are connected to the L-pole terminal and the N-pole terminal, respectively, so that a conductive loop is formed between the indicator light and the L-pole terminal 31 and the N-pole terminal 32, when the L-pole terminal 31 and the N-pole terminal 32 are externally connected with power wires, the indicator light can be powered on to play a role of signal indication.

In the present embodiment, as shown in fig. 1, the upper cover 2 includes a boss portion 23 provided with the jack structure and the indicating slot hole, the upper cover 2 is provided with a cover 7 which can be opened or closed by rotation, the cover 7 covers the boss portion 23 in a matching manner when closed, the jack structure 21 includes two-jack and three-jack, and the jack structure of the explosion-proof socket can be prevented from being exposed when a plug is not connected by the cover 7.

In order to further improve the use safety of the explosion-proof socket and prevent external foreign matters from being easily inserted into the jack structure, as shown in fig. 3, a mounting middle plate 81 is disposed between the bottom case 1 and the upper cover 2, the mounting middle plate 81 has a receiving groove and a connecting hole disposed in the receiving groove corresponding to the inserting hole structure 21, two sliding block baffles 82 are slidably disposed in the receiving groove, and at least one spring 83 disposed between the two slider baffles 82, the two slider baffles 82 are used for shielding the two-plug jack and the three-plug jack respectively, when the explosion-proof socket is in a non-plugging state (no external plug is connected), the slide block baffle 82 shields the jack structure 21 under the action of the spring 83, and when the explosion-proof socket is in a plug-in state (connected with an external plug), the slide block baffle 82 is pushed to give way to slide when the plug is inserted into the jack structure 21.

As shown in fig. 2-4, the upper cover 2 has an upper cavity portion 24, the bottom case 1 correspondingly has a lower cavity portion, the openings of the upper cavity portion and the lower cavity portion are respectively circular structures and are closed to form an inner cavity of the explosion-proof socket, the upper cover 2 and the bottom case 1 are fixedly mounted through a connecting structure, the connecting structure includes four limiting grooves 91 disposed on the inner wall of the upper cavity portion 24, four limiting bosses 92 correspondingly disposed on the outer wall of the top of the bottom case 1 and adapted to be inserted into the limiting grooves, and a limiting baffle 93 fixedly connected to the upper cover through the bottom case, the limiting baffle 93 is disposed around the opening end of the upper cavity portion and abuts against the limiting bosses 92 in the limiting grooves 91, that is, a middle through hole corresponding to the opening end of the upper cavity portion is disposed on the limiting baffle 93, and the limiting baffle 93 is sleeved on the bottom case through the middle through hole, and is fixedly installed with the upper cover through a screw structure. Through the structure, when the upper cover 2 and the bottom shell 1 are assembled, the bottom shell 1 and the upper cover 2 are firstly inserted together through the matching of the limiting boss 32 and the limiting groove 91, then the limiting baffle 93 penetrates through the bottom shell and then is fixedly connected with the upper cover, and the limiting boss is abutted in the limiting groove through the limiting baffle, so that the limiting boss 92 is prevented from being separated from the limiting groove 91, and the upper cover 2 and the bottom shell 1 are kept fixed in relative installation positions.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides an explosion-proof socket of function is instructed in area, includes drain pan (1), upper cover (2) and sets up L utmost point terminal (31), N utmost point terminal (32) and ground terminal (33) in the cavity that forms between drain pan (1) and upper cover (2), the upper cover has a plurality of jack structures (21), its characterized in that: an indicating slotted hole (22) is formed in the surface of the upper cover (2), an indicating lamp (4) is installed in the indicating slotted hole (22), the indicating lamp (4) is provided with two lead structures (41) penetrating between the bottom case and the upper cover, the two lead structures (41) are electrically connected between the L pole terminal and the N pole terminal, and a positioning clamping table assembly for limiting the indicating lamp (4) in the indicating slotted hole (22) is arranged between the bottom case (1) and the upper cover (2) and between the indicating lamp (4).

2. The explosion-proof socket with the indication function of claim 1, wherein: the positioning clamping table assembly comprises at least two positioning clamping plates (5) which are oppositely arranged on the bottom surface of the upper cover (2) around the indicating slotted hole (22), and a clamping groove channel (51) which extends along the axial direction of the indicating slotted hole (22) and is formed between the two positioning clamping plates (5), and the indicating lamp (4) penetrates through the clamping groove channel in an extruding mode and then extends into the indicating slotted hole (22).

3. The explosion-proof socket with the indication function of claim 2, wherein: two be provided with at least one sand grip structure (52) on location cardboard (5) towards the medial surface of draw-in groove passageway, pilot lamp (4) insert during draw-in groove passageway (51) with sand grip structure (52) cooperation extrusion contact, sand grip structure (52) are followed the length direction extension setting distance of location cardboard.

4. The explosion-proof socket with the indication function of claim 3, wherein: the side wall of the indicating lamp (4) close to the bottom end of the indicating lamp is provided with a limiting boss (42), and the limiting boss (42) is abutted to the bottom end of the positioning clamping plate (5) in a matched mode.

5. An explosion-proof socket with indication function according to any one of claims 1 to 4, wherein: the positioning clamping table assembly further comprises two positioning convex rods (6) vertically arranged in the bottom case (1), the positioning convex rods (6) extend and abut against the bottom end of the indicator light (4), and the top end of the indicator light (4) is accommodated in the indicating groove hole.

6. The explosion-proof socket with the indication function of claim 1, wherein: the positioning clamping platform assembly comprises two elastic buckles which are oppositely arranged on the bottom surface of the upper cover (2) around the indicating groove hole (22), the end parts of the elastic buckles are clamping hook ends, and the clamping hook ends are buckled and supported at the bottom end of the indicating lamp (4) when the indicating lamp (4) is inserted between the two elastic clamping hooks.

7. The explosion-proof socket with the indication function of claim 5, wherein: relative being formed with between two location protruding poles (6) can hold two the installation clearance of pin configuration (41), two pin configuration (41) along the installation clearance is in extend in drain pan (1) and arrange, drain pan (1) bottom is equipped with pin hole (11) that can supply two pin configuration to stretch out, L utmost point terminal, N utmost point terminal and ground terminal have respectively and set up a plurality of wiring holes of drain pan (1) bottom, and two pin configuration (41) pass through wiring hole connects respectively L utmost point terminal and N utmost point terminal.

8. The explosion-proof socket with the indication function of claim 1, wherein: upper cover (2) including be equipped with the jack structure with boss portion (23) of instruction slotted hole, upper cover (2) are provided with rotatable shroud (7) of opening or closing, shroud (7) are the matched cover when closing boss portion (23), jack structure (21) include two jacks and three jacks.

9. The explosion-proof socket with the indication function of claim 8, wherein: drain pan (1) with be provided with installation medium plate (81) between upper cover (2), installation medium plate (81) have the storage tank and set up in the storage tank with the corresponding connecting hole of jack structure (21), the storage tank is internal slidable is provided with two slider baffles (82), and sets up at least one spring (83) between two slider baffles (82), slider baffle (82) are in shelter from under spring (83) effect jack structure (21) to at the plug insert receive crowded push to give way the slip when jack structure (21).

10. The explosion-proof socket with the indication function of claim 1, wherein: the upper cover (2) is provided with an upper cavity part (24), the bottom shell (1) is correspondingly provided with a lower cavity part, the upper cover (2) and the bottom shell (1) are fixedly installed through a connecting structure, the connecting structure comprises at least one limiting groove (91) arranged on the inner wall of the upper cavity part (24), at least one limiting boss (92) correspondingly arranged on the outer wall of the top of the bottom shell (1) and suitable for being inserted into the limiting groove, and a limiting baffle (93) penetrating through the bottom shell and fixedly connected with the upper cover, wherein the limiting baffle (93) surrounds the opening end of the upper cavity part and abuts against the limiting boss (92) in the limiting groove (91).