CN220042460U - Low-voltage emergency plug assembly and secondary fixing device - Google Patents

Abstract

The utility model discloses a low-voltage emergency plug assembly and a secondary fixing device, wherein a fastening mechanism comprises a clamping rod, a clamping block fixedly arranged on the clamping rod, an elastic assembly positioned at one side of the clamping block and a clamping mechanism surrounding the elastic assembly; the clamping mechanism comprises a locking sleeve, a clamping end connected with the locking sleeve in a clamping way, a conductive rod arranged in the locking sleeve and a cable positioned at the other side of the conductive rod; the limiting mechanism comprises a limiting elastic block, a limiting boss fixedly arranged on the outer wall of the locking sleeve and a sliding sleeve in sliding connection with the limiting boss. The low-voltage emergency plug assembly is fast to assemble and disassemble, small in size and high in adaptability. In use, the locking sleeve is only required to be rotated to complete the installation. The pressure spring is applied with pressure through the cam, so that reliable contact is ensured. The secondary fixing device is simple and convenient to operate, can be linked with the clamping function of the low-voltage emergency plug-in assembly, can synchronously complete secondary fixing of the whole mechanism, prevents power failure caused by misoperation of false touch, and can accurately judge whether clamping movement is perfect through the protrusions.

Description

Low-voltage emergency plug assembly and secondary fixing device

Technical Field

The utility model relates to the technical field of low-voltage distribution networks, in particular to a low-voltage emergency plug assembly and a secondary fixing device.

Background

Along with the development of a power grid, the requirements on the reliability and stability of power supply of the power distribution network are higher and higher, and most of power distribution network systems are in radial topological structures, and when a line is in fault or reconstruction, continuous power supply is difficult to ensure through a mode of converting operation, so that the use of an emergency power supply vehicle and bypass operation are two most direct and most effective important means for improving the reliability and the service level of power supply.

However, the emergency power supply vehicle and the bypass operation currently need to be pre-installed with an emergency interface socket on the equipment, and for the traditional equipment not installed with the emergency interface socket, the cable head needs to be manufactured on site. The cable head manufacturing process is complex, a complex bypass system is temporarily built, the problems of long time consumption, large manpower and material consumption, high safety risk and the like exist, although some devices can fix the electrified assembly, whether the fixing operation is complete or not can not be intuitively displayed, and therefore once personnel misoperation misunderstand that the assembly is completely fixed, potential safety hazards such as power failure and the like can be caused.

What is needed is a plug assembly that can be quickly and easily disassembled and assembled, that contacts reliably after installation, and that can visually display whether the assembly has been fixedly installed, so as to meet the actual working requirements.

Disclosure of Invention

This section is intended to summarize some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments, which may be simplified or omitted in this section, as well as the description abstract and the title of the utility model, to avoid obscuring the objects of this section, description abstract and the title of the utility model, which is not intended to limit the scope of this utility model.

The present utility model has been made in view of the above and/or problems occurring in the prior art.

Therefore, the technical problem to be solved by the utility model is to design the plug assembly which can be quickly and conveniently disassembled and assembled and has reliable contact after being assembled so as to meet the requirements in actual work.

In order to solve the technical problems, the utility model provides the following technical scheme: a low-voltage emergency plug assembly comprises,

the fastening mechanism comprises a clamping connection rod, a clamping block fixedly arranged on the clamping connection rod, an elastic component positioned at one side of the clamping block and a clamping mechanism surrounding the elastic component;

the clamping mechanism comprises a locking sleeve, a clamping end connected with the locking sleeve in a clamping mode, a conductive rod arranged in the locking sleeve and a cable positioned on the other side of the conductive rod.

As an improvement of the utility model, the clamping end is fixedly connected with the conductive base, a conductive block is fixedly arranged in the conductive base, a guide groove is fixedly formed in the clamping end, and a clamping groove is formed at the tail end of the guide groove.

As an improvement of the utility model, a clamping block is fixedly arranged on the inner wall of the locking sleeve and is in sliding connection with the guide groove, the tail end of the conducting rod is coated with an elastic sleeve, the elastic sleeve is externally connected with a conducting rod sleeve, the outer part of the conducting rod sleeve is fixedly connected with an insulating sleeve, and the insulating sleeve is connected with the locking sleeve.

As an improvement of the utility model, one end of the conducting rod is fixedly provided with a spring, the other end of the spring is connected with a spring pressing plate, the conducting rod is provided with a rotating hole, and the clamping rod is rotatably connected with the rotating hole.

As an improvement of the utility model, the clamping rod is fixedly provided with a mounting groove, the mounting groove is fixedly provided with a cam, the upper side and the lower side of the cam are provided with limiting plates, and the smooth end of the cam is initially attached to the spring pressing plate.

As an improvement of the utility model, the other end of the conductive rod sleeve is connected with the cable, and the outer wall of the cable is connected with a cable insulation sleeve.

The low-voltage emergency plug assembly has the beneficial effects that: the installation is convenient, and the volume is less, adapts to most distribution equipment. During use, only the locking sleeve is required to be rotated to finish installation, and the operation is convenient and quick. The pressure spring is used in the plug, and pressure is applied to the pressure spring through the cam, so that reliable contact is ensured.

In view of the fact that when an operator or external force touches the original low-voltage emergency plug assembly by mistake, the original low-voltage emergency plug assembly can be reversely unscrewed to cause the whole assembly to lose the clamping function in the horizontal direction, and therefore the original low-voltage emergency plug assembly is disconnected with equipment to cause power failure, the secondary fixing device is provided.

In order to solve the technical problems, the utility model also provides the following technical scheme: the limiting mechanism comprises a limiting elastic block, a limiting boss fixedly arranged on the outer wall of the locking sleeve and a sliding sleeve in sliding connection with the limiting boss.

As an improvement of the utility model, the limiting elastic block is correspondingly provided with a pressing groove, the pressing groove penetrates through the locking sleeve, the pressing groove is fixedly provided with a pressing spring, the other end of the pressing spring is fixedly connected with the limiting elastic block, and the top of the limiting elastic block is fixedly extended with a vertical limiting end.

As an improvement of the utility model, the limit boss extends along the locking sleeve, a sliding groove is formed in the inner wall of the sliding sleeve, the sliding end is positioned in the sliding groove, a rebound groove is formed in the sliding sleeve, an elastic end is arranged in the rebound groove in a sliding manner, the other end of the elastic end is connected with the rebound groove through a mini spring, and an identification protrusion is fixedly arranged on the top surface of the elastic end.

As an improvement of the utility model, a tension spring is fixedly connected to the limiting boss, the other end of the tension spring is fixedly connected with the sliding sleeve, a top block is fixedly arranged at the bottom of the limiting elastic block, a cover plate is fixedly arranged on the sliding sleeve, a sliding channel is arranged in the cover plate, and the identification protrusion is in sliding connection with the sliding channel.

The secondary fixing device has the beneficial effects that: the operation is simple and convenient, the clamping function linkage of the low-voltage emergency plug assembly can be realized, the circuit contact fastening reliability of the whole mechanism is ensured by the rotary clamping rod, the secondary fixation of the whole mechanism can be synchronously completed, the power failure caused by misoperation due to false touch is prevented, and whether the clamping movement is perfect can be accurately judged through the bulge.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a side cross-sectional view of the present utility model prior to installation of a low pressure emergency plug assembly.

FIG. 2 is a side cross-sectional view of the low pressure emergency plug assembly of the present utility model after installation.

Fig. 3 is a schematic view of a conductive base and a clamping terminal according to the present utility model.

Fig. 4 is a schematic diagram illustrating the cooperation of the clamping rod, the conductive rod and the elastic component in the present utility model.

FIG. 5 is a schematic diagram showing the separation of the clamping rod in the present utility model.

Fig. 6 is a schematic diagram showing the cooperation of the locking sleeve and the secondary fixing device in the present utility model.

Fig. 7 is a cross-sectional view of the structure of the limiting spring block in the locking sleeve.

Fig. 8 is a schematic contact diagram of the limiting spring block and the sliding sleeve and the components thereof in the utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1

Referring to fig. 1-4, this embodiment provides a low pressure emergency plug assembly, comprising,

when the whole low-voltage emergency plug assembly is in butt joint with the existing socket, the contact reliability of the electrified part and the socket is ensured, so that the fastening mechanism 100 is arranged, the clamping rod 101 is vertically arranged inside the whole assembly and can rotate, the clamping block 102 is fixedly arranged on the clamping rod 101, and the clamping block 102 can be driven to rotate when the clamping rod 101 rotates, and the clamping block 102 is cam-shaped.

An elastic component 103 is arranged on the left side of the clamping rod 101, the elastic component 103 can be compressed and rebounded in the horizontal direction, and a cam 101b is fixedly arranged in the middle of the clamping rod 101, so that the cam 101b can rotate along with the rotation of the clamping rod 101.

When the cam 101b rotates along with the clamping connection rod 101, due to the special shape, the cam can prop against the elastic component 103 and push the elastic component to the left for compression, so that the contact pressure between the electrified part and the existing socket is ensured, and accidents such as power failure and the like are prevented.

The clamping mechanism 200 surrounds the outer side of the elastic component 103, the whole low-voltage emergency plug component can be fixed on the socket, the clamping end 202 is fixedly arranged at the front section of the socket, the locking sleeve 201 is fixedly connected to the left side of the whole low-voltage emergency plug component, and the whole low-voltage emergency plug component can be ensured to be firmly connected with the existing socket by fixedly clamping the locking sleeve 201 along the clamping end 202.

The conducting rod 203 which is horizontally placed is fixedly arranged in the locking sleeve 201, the cable 204 is connected to the other side of the conducting rod 203, and the cable 204 can be connected with a socket power supply through the conducting rod 203, so that the electrifying effect of the whole assembly is ensured.

The locking sleeve 201 is aligned with the clamping end 202 on the existing socket, the locking sleeve 201 is inserted into the clamping end 202 to be fixed, and therefore the whole low-voltage emergency plug assembly can be fixed with the existing socket, the conducting rod 203 is in contact with the existing socket, and the assembly is electrified into the cable 204.

Because simple horizontal contact can not ensure that the whole assembly can be firmly electrified with the socket power supply, the clamping rod 101 needs to be rotated, the rotation of the clamping rod 101 drives the cam 101b fixedly connected with the clamping rod 101 to rotate, the elastic assembly 103 can be pushed and compressed leftwards, and because the elastic assembly 103 and the electrified part are fixed, the electrified part is pressed by the rotation of the clamping rod 101 and reliably contacted with the existing socket power supply, and the occurrence of unexpected power failure and the like is prevented.

Example 2

Referring to fig. 1 to 6, the present embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

the conductive base 202a and the internal elements thereof can provide power for the whole assembly, the conductive block 202b is fixedly arranged in the conductive base 202a, the clamping end 202 is positioned at the outer end of the conductive base 202a and fixedly connected with the conductive base 202a, a circle of guide groove 202c is fixedly formed in the clamping end 202, the guide groove 202c is horizontally formed along the outer wall of the clamping end 202, and the locking sleeve 201 to be inserted can have a horizontal guide function. A wider clamping groove 202c-1 is formed at the end of the guiding groove 202c, the clamping groove 202c-1 extends along the circumferential direction of the clamping end 202, and the actual additional accommodating width of the clamping groove 202c-1 is the same as the guiding groove 202c.

The clamping block 201a corresponding to the width of the guide groove 202c is fixedly arranged on the inner wall of the locking sleeve 201, so that the clamping block 201a can slide along the guide groove 202c, after the clamping block 201a slides to the tail end of the guide groove 202c, the clamping block 201a enters the clamping groove 202c-1, at the moment, the locking sleeve 201 is rotated to enable the clamping block 201a to move along the clamping groove 202c-1 in a circular mode along the locking sleeve 201, after the movement is finished, the clamping block 201a is limited by the clamping groove 202c-1, the clamping block cannot move horizontally, the whole locking sleeve 201 can be clamped, and the width of the clamping block 201a is the same as the additional accommodating width of the clamping groove 202c-1 and the width of the guide groove 202c.

The tail end of the conducting rod 203 is coated with an elastic sleeve 203a, the outer wall of the elastic sleeve 203a is connected with a conducting rod sleeve 203b, the conducting rod sleeve 203b can be effectively protected under the auxiliary effect of the elastic sleeve 203a, the conducting rod sleeve 203b is prevented from being extruded to cause the conducting rod 203 to be extruded and damaged under the action of uncontrollable external force, and the whole electrifying process is affected. An insulating sleeve 205 is fixedly connected to the outside of the conductive rod sleeve 203b to play an additional role in electric shock protection, the insulating sleeve 205 is connected with the locking sleeve 201, the rotating fastening function of the locking sleeve 201 also ensures that the whole assembly is effectively fixed, and when the assembly is connected with the conductive base 202a, the whole assembly is electrified.

The radius of the connecting end of the conductive rod 203 and the conductive base 202a is larger than that of the main body of the conductive rod 203, a spring 203d is fixedly arranged at one end of the conductive rod 203, a spring pressing plate 203d-1 is fixed at the other end of the spring 203d, and the spring 203d can be compressed by pressing the spring pressing plate 203d-1, so that the contact pressure between the whole conductive rod 203 and the conductive block 202b in the conductive base 202a is ensured. The conductive rod 203 is provided with a rotating hole 203c, the clamping rod 101 is positioned in the rotating hole 203c and is rotationally connected with the rotating hole 203c, and the clamping rod 101 simultaneously passes through the insulating sleeve 205 and is exposed outside.

Two mounting grooves 101a are fixedly formed in the clamping rod 101, cams 101b are fixedly arranged in the mounting grooves 101a respectively, and in a default state, the smooth ends 101b-1 of the cams 101b face to the left side, and the protruding ends face to the right side. The limiting plates 101a-1 are mounted on the upper side and the lower side of the cam 101b, so that a more effective fixing and limiting effect can be achieved on the two cams 101 b. When the clamping rod 101 is rotated, the cam 101b can rotate along with the clamping rod 101, the protruding end of the cam 101b can act on the spring pressing plate 203d-1 in the rotating process, so that the spring pressing plate 203d-1 is extruded, when the cam 101b rotates one hundred eighty degrees along with the clamping rod 101, the spring pressing plate 203d-1 can be extruded to the maximum limit by the cam 101b, the contact pressure between the whole conducting rod 203 and the conducting block 202b in the conducting base 202a can be effectively ensured, and as the protruding end of the cam 101b is a plane, the cam 101b can be in a stable state after rotating one hundred eighty degrees and cannot be reversely pushed by the reactive force generated by extrusion of the spring 203 d.

The other end of the conductive rod sleeve 203b is connected with a cable 204, and the outer wall of the cable 204 is connected with a cable insulation sleeve 204a.

Firstly, the locking sleeve 201 is aligned with the clamping end 202, so that the clamping blocks 201a on the inner wall of the locking sleeve 201 can slide along the guide grooves 202c on the clamping end 202, after the locking sleeve 201 slides to the bottom, the locking sleeve 201 is rotated so that the clamping blocks 201a rotate along the clamping grooves 202c-1, the whole assembly is completely fixed with the conductive base 202a, the conductive rods 203 in the locking sleeve 201 are also contacted with the conductive blocks 202b, and the whole assembly is electrified.

The clamping rod 101 positioned outside the insulating sleeve 205 is rotated, so that the cam 101b fixedly connected with the clamping rod 101 rotates along with the clamping rod 101, after the cam 101b rotates along with the clamping rod 101 for one hundred eighty degrees, the spring pressing plate 203d-1 can be pressed to the maximum limit by the cam 101b, the contact pressure between the whole conducting rod 203 and the conducting block 202b in the conducting base 202a can be effectively ensured, and as the forefront end of the protruding end of the cam 101b is a plane, after rotating for one hundred eighty degrees, the cam 101b can be in a stable state and cannot be reversely pushed by the reaction force generated by the pressing of the spring 203d, so that the whole low-voltage emergency plugging and unplugging assembly can be fixedly connected with the conducting base 202a and has good electrifying contact.

Example 3

Referring to fig. 1 to 8, the present embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

the limiting mechanism 300 comprises a limiting elastic block 301, a limiting boss 302 fixedly arranged on the outer wall of the locking sleeve 201, and a sliding sleeve 303 in sliding connection with the limiting boss 302. The limiting elastic blocks 301 are movably arranged on the outer wall of the locking sleeve 201, the pressing grooves 301a are correspondingly formed under each limiting elastic block 301, and each pressing groove 301a is located inside the locking sleeve 201. The pressing groove 301a is internally fixedly provided with a pressing spring 301a-1, the other end of the pressing spring 301a-1 is fixedly connected with the bottom of the limiting elastic block 301, in a normal state, the limiting elastic block 301 protrudes out of the outer wall of the locking sleeve 201, the bottom of the limiting elastic block 301 is fixedly provided with a top block 301b, the width of the top block 301b is the same as that of the guide groove 202c, and the top of each limiting elastic block 301 is fixedly extended with a vertical limiting end 301c.

A limiting boss 302 is fixedly arranged on the right side of each limiting elastic block 301, each limiting boss 302 extends towards the limiting elastic block 301 to form a sliding end 302a, and a sliding groove 303a corresponding to the sliding end 302a in size is formed in the inner wall of the sliding sleeve 303, so that the sliding sleeve 303 can horizontally slide on the sliding end 302 a.

A rebound groove 303d is further formed in the sliding sleeve 303 above the sliding groove 303a, an elastic end socket 303b is arranged in the rebound groove 303d in a sliding and accommodating mode, the front section of the elastic end socket 303b is a trapezoid inclined block, the elastic end socket 303b can horizontally slide in the rebound groove 303d, the tail of the elastic end socket 303b is connected with the inner wall of the rebound groove 303d through a mini spring 303b-2, and when the elastic end socket 303b is extruded to perform horizontal movement, the mini spring 303b-2 can be extruded to generate reverse acting force.

An identification protrusion 303b-1 higher than the top surface of the sliding sleeve 303 is fixedly arranged on the top surface of the elastic end 303b, the identification protrusion 303b-1 can move in the rebound groove 303d along with the horizontal movement of the elastic end 303b, a cover plate 303c with the same size as the surface of the rebound groove 303d is arranged between the top surface of the elastic end 303b and the sliding sleeve 303, a sliding channel 303c-1 is arranged in the center of the cover plate 303c, and the width of the sliding channel 303c-1 is the same as that of the identification protrusion 303b-1, so that the identification protrusion 303b-1 can move along with the sliding channel 303c-1 along with the movement of the elastic end 303b when the elastic end 303b is pressed to move horizontally.

The maximum distance that the identifying protrusion 303b-1 can move in the sliding channel 303c-1 is the same as the horizontal distance that the elastic end 303b protrudes out of the sliding sleeve 303 in the default state, so that after the elastic end 303b is completely retracted by extrusion, the identifying protrusion 303b-1 moves to the tail end of the sliding channel 303c-1 along with the elastic end 303b, at this time, the identifying protrusion 303b-1 abuts against the rebound groove 303d, and the elastic end 303b is also completely retracted into the rebound groove 303d and cannot move any more.

Each limiting boss 302 is fixedly connected with a tension spring 302b, the other end of the tension spring 302b is fixedly connected with the sliding sleeve 303, and each time the sliding sleeve 303 slides along the sliding end 302a towards the limiting elastic block 301, the tension spring 302b is pulled to generate reverse tension.

The limiting elastic block 301 is located at the left side of the clamping block 201a on the inner wall of each locking sleeve 201, after the low-voltage emergency plug assembly is primarily rotated and fixed, the clamping block 201a enters the clamping groove 202c-1, and at this time, the limiting elastic block 301 just corresponds to the guiding groove 202c on the left side of the clamping groove 202 c-1.

First, the steps and effects of embodiment 2 are linked, and the clamping rod 101 is disposed between two limiting bosses 302, so as to ensure that the clamping block 102 can accurately act on the sliding sleeve 303 without touching the limiting bosses 302.

Under the one hundred eighty degree rotatory effect of clamping rod 101, whole low pressure emergent plug subassembly can with electrically conductive base 202a fixed connection and circular telegram contact are good, clamping rod 101's rotation has driven the clamping piece 102 rotatory rather than fixed connection, clamping piece 102's appearance references cam 101b, consequently, clamping piece 102 can promote sliding sleeve 303 along slip end 302a and slide towards spacing bullet 301 in rotatory in-process, until sliding sleeve 303 contacts spacing bullet 301, because spacing bullet 301 surface is offered to smooth inclined plane, sliding sleeve 303 can be under the continuous horizontal movement's in-process with spacing bullet 301, because locking sleeve 201 has been fixed with electrically conductive base 202a at this moment, clamping block 201a is in clamping groove 202c-1, so spacing bullet 301 bottom has just corresponded guide way 202c, spacing bullet 301 is pushed down at this moment, the kicking block 301b of spacing bullet 301 bottom gets into guide way 202c because kicking block 301b width is the same with guide way 202c width, clamping block 201a width is the same with guide way 202c and clamping groove 202c-1 c width, consequently, can be closely laminated with the slip cap 201a and the slip cap 201a, thereby the tight contact of the slip cap 201a can be prevented to draw back with the slip cap 201a, and the slip cap is prevented from being completely and the tight contact.

Because the top of each spacing bullet 301 is fixed to extend and is had perpendicular spacing end 301c, when the slip cap 303 just contacted with the smooth inclined plane of spacing bullet 301, the bottom right angle end of slip cap 303 can be through the inclined plane atress with spacing bullet 301 pushes down, and the elasticity end 303b of slip cap 303 anterior segment can not contact smooth inclined plane because of self length and shape restriction, can only follow the slip cap 303 anterior segment and rise along smooth inclined plane, and smooth inclined plane itself can not exert an influence to elasticity end 303b and make its compression.

Because the vertical limiting end 301c is a vertical plane, when the sliding sleeve 303 is about to move along the smooth inclined plane, the elastic end 303b of the front section of the sliding sleeve 303 starts to contact the vertical limiting end 301c, the vertical limiting end 301c pushes the elastic end 303b to move inwards, when the sliding sleeve 303 is completely moved along the smooth inclined plane and is attached to the vertical limiting end 301c, the elastic end 303b also moves to the limit under the extrusion action of the vertical limiting end 301c, at this time, due to the same moving distance, the identification protrusion 303b-1 just abuts against the rebound groove 303d, which indicates that the whole limiting spring 301 also vertically moves and presses down to the maximum value, and a worker can judge whether the whole device is completely fixed by identifying whether the protrusion 303b-1 completely abuts against the rebound groove 303d, so as to prevent the situation that the device is loose when the device is not fixed.

When the whole assembly needs to be unlocked, only the clamping connection rod 101 is required to be rotated, the sliding sleeve 303 can be quickly returned under the action of the tension spring 302b, and the elastic end 303b is pushed back to the original position under the reaction force of the mini spring 303b-2 to wait for the next operation. The limiting elastic block 301 also rebounds under the action of the pressing spring 301a-1, and at this time, the space of the guide groove 202c is vacated, so that the assembly unlocking and dismounting work can be smoothly performed.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. The utility model provides a emergent plug subassembly of low pressure which characterized in that: comprising the steps of (a) a step of,

the fastening mechanism (100) comprises a clamping rod (101), a clamping block (102) fixedly arranged on the clamping rod (101), an elastic component (103) positioned at one side of the clamping block (102) and a clamping mechanism (200) surrounding the elastic component (103);

the clamping mechanism (200) comprises a locking sleeve (201), a clamping end (202) in clamping connection with the locking sleeve (201), a conductive rod (203) arranged in the locking sleeve (201), and a cable (204) arranged on the other side of the conductive rod (203).

2. The low pressure emergency plug assembly of claim 1, wherein: the clamping end (202) is fixedly connected with the conductive base (202 a), a conductive block (202 b) is fixedly arranged in the conductive base (202 a), a guide groove (202 c) is fixedly formed in the clamping end (202), and a clamping groove (202 c-1) is formed in the tail end of the guide groove (202 c).

3. The low pressure emergency plug assembly of claim 2, wherein: clamping blocks (201 a) are fixedly arranged on the inner wall of the locking sleeve (201), the clamping blocks (201 a) are in sliding connection with the guide grooves (202 c), elastic sleeve members (203 a) are coated at the tail ends of the conducting rods (203), conducting rod sleeve members (203 b) are connected to the outer portions of the elastic sleeve members (203 a), insulating sleeve members (205) are fixedly connected to the outer portions of the conducting rod sleeve members (203 b), and the insulating sleeve members (205) are connected with the locking sleeve members (201).

4. A low pressure emergency plug assembly according to claim 2 or 3, wherein: the novel electric conduction device is characterized in that a spring (203 d) is fixedly arranged at one end of the conducting rod (203), a spring pressing plate (203 d-1) is connected to the other end of the spring (203 d), a rotating hole (203 c) is formed in the conducting rod (203), and the clamping rod (101) is rotatably connected with the rotating hole (203 c).

5. The low pressure emergency plug assembly of claim 4, wherein: the clamping rod (101) is fixedly provided with a mounting groove (101 a), the mounting groove (101 a) is fixedly provided with a cam (101 b), limiting plates (101 a-1) are arranged on the upper side and the lower side of the cam (101 b), and the smooth end (101 b-1) of the cam (101 b) is initially attached to the spring pressing plate (203 d-1).

6. A low pressure emergency plug assembly according to claim 3, wherein: the other end of the conductive rod sleeve (203 b) is connected with the cable (204), and the outer wall of the cable (204) is connected with a cable insulation sleeve (204 a).

7. A secondary fixing device, characterized in that: comprising the low pressure emergency plug assembly of any one of claims 1-6, and,

the limiting mechanism (300) comprises a limiting elastic block (301), a limiting boss (302) fixedly arranged on the outer wall of the locking sleeve (201) and a sliding sleeve (303) in sliding connection with the limiting boss (302).

8. The secondary fixation device of claim 7, wherein: the limiting elastic block (301) is correspondingly provided with a pressing groove (301 a), the pressing groove (301 a) penetrates through the locking sleeve (201), the pressing groove (301 a) is fixedly provided with a pressing spring (301 a-1), the other end of the pressing spring (301 a-1) is fixedly connected with the limiting elastic block (301), and the top of the limiting elastic block (301) is fixedly extended with a vertical limiting end (301 c).

9. The secondary fixation device of claim 8, wherein: limiting boss (302) are followed lock sleeve (201) are extended has slip end (302 a), spout (303 a) have been seted up to slip sleeve (303) inner wall, slip end (302 a) are located spout (303 a) are interior, rebound groove (303 d) have been seted up in slip sleeve (303), rebound groove (303 d) are interior to be provided with elasticity end (303 b), elasticity end (303 b) other end with rebound groove (303 d) are connected through mini spring (303 b-2), elasticity end (303 b) top surface is fixed to be provided with discernment arch (303 b-1).

10. The secondary fixation device of claim 9, wherein: the novel anti-theft device is characterized in that a tension spring (302 b) is fixedly connected to the limiting boss (302), the other end of the tension spring (302 b) is fixedly connected with the sliding sleeve (303), a top block (301 b) is fixedly arranged at the bottom of the limiting elastic block (301), a cover plate (303 c) is fixedly arranged on the sliding sleeve (303), the cover plate (303 c) is located above the elastic end (303 b) and is internally provided with a sliding channel (303 c-1), and the identification protrusion (303 b-1) is in sliding connection with the sliding channel (303 c-1).