Connection structure of methane breaker

Abstract

The utility model relates to the technical field of methane power-off devices, and discloses a connection structure of a methane power-off device, which comprises a methane power-off device shell, one side wall of the methane power-off device shell is connected with one end of a communication cable, and the other end of the communication cable is connected with a methane sensor. Two wiring ports are formed in the other side wall of the methane power-off instrument shell, sockets are formed in the wiring ports, and outer connectors are inserted into the sockets of the wiring ports; according to the utility model, the inner gear ring is screwed and the plurality of gears are synchronously driven to rotate, so that the plurality of groups of connecting rods and the notch positioning round wheels are synchronously driven to rotate, and the plurality of notch positioning round wheels are rotated and clamped into the corresponding positioning grooves on the outer side wall of the outer joint, thereby realizing the connection and fixation between the wiring port and the outer joint. And the wiring port and the external joint on the methane power-off device shell can be conveniently and quickly mounted or dismounted, and the operation is simple, convenient and quick.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of methane power-off instrument, especially relates to a connection structure of methane power-off instrument. BACKGROUND

[0002] The methane power-off instrument is a safety device for monitoring and detecting the concentration of methane gas in the environment. When the concentration of methane exceeds the set safety threshold, the device will issue an alarm to remind the staff to take necessary protective measures. When high concentration of methane is detected, the instrument can automatically cut off the power supply of the related equipment to prevent accidents such as fire or explosion.

[0003] The prior art vehicle-mounted methane power-off instrument (its authorized announcement number is CN206099303U) has some deficiencies in actual use. The AC input port and power-off output port on the left side wall of the methane power-off instrument are used for external AC power supply signals. When excessive methane concentration or other abnormal conditions are detected, the power-off output port will cut off the power supply connected to the device, thereby stopping the operation of the device to prevent safety hazards such as fire or explosion. The current connection method of the AC input port and power-off output port on the methane power-off instrument and the external power supply is generally through the fixed connection of the wiring port sub, which ensures stability and safety. However, this connection method through the wiring port sub requires constant screwing of the wiring port sub during installation or disassembly, which is relatively inconvenient to operate and not convenient for quick installation and disassembly of the connection between the methane power-off instrument and the external power supply. Therefore, we propose a connection structure of the methane power-off instrument to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a connection structure of the methane power-off instrument to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of connection structure of methane breaker, including methane breaker shell, one side wall of the methane breaker shell is connected with the one end of communication cable, the other end of the communication cable is connected with methane sensor, the other side wall of the methane breaker shell is provided with two wiring ports, the socket is opened in the wiring port, the external connector is inserted in the socket of the wiring port, the outer side wall of the external connector is respectively opened with multiple positioning slots, the multiple wheel grooves and multiple circular cavities are respectively opened in the wiring port, the notch positioning round wheel is rotatably mounted in multiple wheel grooves, the one end of connecting rod is fixedly installed on the side of the notch positioning round wheel, the other end of the connecting rod extends into the corresponding circular cavity and is fixedly installed with gear, the outer side wall of the wiring port is opened with rotation slot, the internal gear ring is rotatably mounted in the rotation slot, the internal gear ring is engaged with multiple gears, the side of the gear is opened with two positioning holes, the outer side wall of the wiring port is respectively opened with multiple installation grooves, and the elastic positioning mechanism for the corresponding positioning hole on the gear is arranged in the installation groove.

[0007] Preferably, the inner side wall of the external connector is provided with a sealing ring, and the sealing ring in the external connector is sealingly fitted in the socket of the wiring port.

[0008] Preferably, the multiple positioning slots, the multiple wheel grooves and the multiple circular cavities are circumferentially arrayed, the positioning slots are matched with the wheel grooves, and the notch positioning round wheel is matched with the positioning slots.

[0009] Preferably, the rotation slot is in communication with the multiple circular cavities, and the cross-sectional diameter of the circular cavity is greater than the cross-sectional diameter of the gear.

[0010] Preferably, the outer side wall of the internal gear ring in the rotation slot is provided with multiple protruding edges, and the multiple protruding edges on the internal gear ring are circumferentially arrayed.

[0011] Preferably, the elastic positioning mechanism includes a mounting plate, a positioning column and a spring, the mounting plate is movably mounted in the installation groove, the one end of the positioning column is fixedly installed on the side of the mounting plate, the other end of the positioning column extends into the circular cavity and is inserted into the corresponding positioning hole on the side of the gear, the one end of the spring is fixedly installed on the other side of the mounting plate, and the other end of the spring is fixedly installed on the inner wall on the side of the installation groove. When the positioning column is inserted into the corresponding positioning hole on the side of the gear, the gear is prevented from continuing to rotate.

[0012] Preferably, the outer side wall of the wiring port is movably sleeved with a ring, and the ring is fixedly connected with the mounting plates; by pushing the ring, the mounting plates can be synchronously moved in the corresponding mounting grooves.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The connecting structure of the methane power-off instrument, by screwing the inner tooth ring, synchronously drives multiple gear wheels to rotate, and then synchronously drives multiple sets of connecting rods and notch positioning circular wheels to rotate, so that the multiple notch positioning circular wheels are clamped and connected to the corresponding positioning grooves in the outer side wall of the outer connector, realizing the connection and fixation between the wiring port and the outer connector, by adjusting multiple positioning columns to be respectively inserted into the corresponding positioning holes on one side of the rotating gear wheel, the situation that the multiple gear wheels continue to rotate is avoided, the stability of the connection between the wiring port and the outer connector is ensured, and the methane power-off instrument shell in the case is convenient for quickly installing or dismounting the wiring port and the outer connector on the methane power-off instrument shell, simple and fast operation is realized, and the connection and installation efficiency between the methane power-off instrument shell and the external power supply is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the three-dimensional perspective of the utility model;

[0016] Figure 2 It is a structure schematic view of the wiring port side view of the utility model;

[0017] Figure 3 It is a structure schematic view of the utility model Figure 2 It is a structure schematic view of the A part of the utility model;

[0018] Figure 4 It is a structure schematic view of the first explosion perspective view of the utility model;

[0019] Figure 5 It is a structure schematic view of the second explosion perspective view of the utility model.

[0020] In the drawing: 1, methane power-off instrument shell; 2, communication cable; 3, methane sensor; 4, wiring port; 5, socket; 6, outer connector; 7, sealing ring; 8, positioning groove; 9, wheel groove; 10, circular cavity; 11, notch positioning circular wheel; 12, connecting rod; 13, gear wheel; 14, rotating groove; 15, inner tooth ring; 16, positioning hole; 17, mounting groove; 18, mounting plate; 19, positioning column; 20, spring; 21, ring. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made belong to the scope of protection of the present application.

[0022] With reference to Figures 1-5 A connecting structure of a methane interrupter, comprising a methane interrupter shell 1, one side wall of the methane interrupter shell 1 is connected with one end of a communication cable 2, the other end of the communication cable 2 is connected with a methane sensor 3, the other side wall of the methane interrupter shell 1 is provided with two wiring ports 4, a socket 5 is formed in the wiring port 4, an external connector 6 is inserted into the socket 5 of the wiring port 4, a plurality of positioning grooves 8 are formed in the outer side wall of the external connector 6, a plurality of wheel grooves 9 and a plurality of circular cavities 10 are formed in the wiring port 4, a notched positioning circular wheel 11 is rotatably installed in each of the wheel grooves 9, one end of a connecting rod 12 is fixedly installed on one side of the notched positioning circular wheel 11, the other end of the connecting rod 12 extends into the corresponding circular cavity 10 and is fixedly installed with a gear 13, a rotating groove 14 is formed in the outer side wall of the wiring port 4, an inner tooth ring 15 is rotatably installed in the rotating groove 14, the inner tooth ring 15 is engaged with the plurality of gears 13, two positioning holes 16 are formed in one side of the gear 13, a plurality of mounting grooves 17 are formed in the outer side wall of the wiring port 4, and a spring positioning mechanism corresponding to the positioning holes 16 of the gear 13 is arranged in the mounting groove 17.

[0023] Further, the inner side wall of the external connector 6 is provided with a sealing ring 7, and the sealing ring 7 in the external connector 6 is sealingly fitted in the socket 5 of the wiring port 4; the sealing ring 7 in the external connector 6 ensures the sealing of the connection between the wiring port 4 and the external connector 6.

[0024] Further, the plurality of positioning grooves 8, the plurality of wheel grooves 9 and the plurality of circular cavities 10 are arranged in a circular array, the positioning grooves 8 are matched with the wheel grooves 9, and the notched positioning circular wheel 11 is matched with the positioning grooves 8; the positioning grooves 8 and the wheel grooves 9 form a complete circular chamber, when the notched positioning circular wheel 11 is completely rotated into the wheel groove 9, the notch on the notched positioning circular wheel 11 is matched with the positioning groove 8, and when the notched positioning circular wheel 11 is rotated and clamped into the positioning groove 8, the connection between the wiring port 4 and the external connector 6 is fixed.

[0025] Specifically, the rotating groove 14 is communicated with the plurality of circular cavities 10, and the cross-sectional diameter of the circular cavity 10 is greater than the cross-sectional diameter of the gear 13; the gear 13 is facilitated to rotate in the circular cavity 10.

[0026] Specific, the outer side wall of the inner tooth ring 15 in the rotating groove 14 is provided with a plurality of convex edges, and the plurality of convex edges on the inner tooth ring 15 are distributed in a circumferential array; it is convenient for the installer to hold on the plurality of convex edges on the outer side wall of the inner tooth ring 15, so as to realize the rotating adjustment of the inner tooth ring 15.

[0027] Specific, the elastic positioning mechanism includes a mounting plate 18, a positioning column 19 and a spring 20, the mounting plate 18 is movably mounted in the mounting groove 17, one side of the mounting plate 18 is fixedly installed with one end of the positioning column 19, the other end of the positioning column 19 extends into the circular cavity 10 and is inserted into the corresponding positioning hole 16 on one side of the gear 13, the other side of the mounting plate 18 is fixedly installed with one end of the spring 20, and the other end of the spring 20 is fixedly installed on the inner wall of one side of the mounting groove 17; when the positioning column 19 is inserted into the corresponding positioning hole 16 on one side of the gear 13, the continuous rotation of the gear 13 is avoided.

[0028] Specific, the outer side wall of the wiring port 4 movably sleeves a circular ring 21, and the circular ring 21 is fixedly connected with the plurality of mounting plates 18; by pushing the circular ring 21, the plurality of mounting plates 18 can be synchronously driven to move in the corresponding mounting groove 17.

[0029] In use: by pushing the circular ring 21, the plurality of mounting plates 18 respectively slide in the corresponding mounting groove 17, at this time, the plurality of springs 20 are stressed to produce deformation compression, so that the plurality of positioning columns 19 are separated from the corresponding positioning holes 16, then by screwing the inner tooth ring 15, the plurality of gears 13 are synchronously driven to rotate, and then the plurality of groups of connecting rods 12 and the notch positioning circular wheels 11 are synchronously driven to rotate, so that the plurality of notch positioning circular wheels 11 rotate back to the corresponding wheel grooves 9, the notch on the plurality of notch positioning circular wheels 11 is kept horizontal with the inner wall of the socket 5 on the wiring port 4, then the external connector 6 is inserted into the socket 5 on the wiring port 4, so that the plurality of positioning grooves 8 on the outer side wall of the external connector 6 are spliced in the corresponding wheel grooves 9 to form a complete circular chamber, then by screwing the inner tooth ring 15, the plurality of notch positioning circular wheels 11 are synchronously driven to rotate and be clamped into the corresponding positioning grooves 8, then by loosening the circular ring 21, under the elastic force of the plurality of springs 20, the plurality of positioning columns 19 are respectively inserted into the corresponding positioning holes 16 on one side of the rotating gear 13, so as to avoid the continuous rotation of the plurality of gears 13, thereby realizing the connection and fixation between the wiring port 4 and the external connector 6; the methane power-off instrument shell 1 in the case is convenient for quickly installing or dismounting the wiring port 4 and the external connector 6 on the methane power-off instrument shell 1, the operation is simple and fast, and the connection and installation efficiency between the methane power-off instrument shell 1 and the external power source is improved.

[0030] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application.

Claims

1. A connection structure of a methane interrupter, comprising a methane interrupter housing (1), characterized in that, One side wall of the methane interrupter shell (1) is connected with one end of a communication cable (2), the other end of the communication cable (2) is connected with a methane sensor (3), the other side wall of the methane interrupter shell (1) is provided with two wiring ports (4), the wiring port (4) is provided with a socket (5), the socket (5) of the wiring port (4) is inserted with an external connector (6), the outer side wall of the external connector (6) is provided with a plurality of positioning grooves (8), the wiring port (4) is provided with a plurality of wheel grooves (9) and a plurality of circular cavities (10), the notch positioning circular wheel (11) is rotatably installed in the wheel groove (9), one side of the notch positioning circular wheel (11) is fixedly connected with one end of a connecting rod (12), the other end of the connecting rod (12) extends into the corresponding circular cavity (10) and is fixedly connected with a gear (13), the outer side wall of the wiring port (4) is provided with a rotating groove (14), the rotating groove (14) is rotatably installed with an inner tooth ring (15), the inner tooth ring (15) is engaged with a plurality of gears (13), one side of the gear (13) is provided with two positioning holes (16), the outer side wall of the wiring port (4) is provided with a plurality of mounting grooves (17), the mounting groove (17) is provided with a spring positioning mechanism for the corresponding positioning hole (16) of the gear (13).

2. The connection structure of a methane interrupter according to claim 1, wherein The inner side wall of the external connector (6) is provided with a sealing ring (7), and the sealing ring (7) in the external connector (6) is sealingly fitted in the socket (5) of the wiring port (4).

3. The connecting structure of a methane interrupter according to claim 1, wherein A plurality of positioning grooves (8), a plurality of wheel grooves (9) and a plurality of circular cavities (10) are arranged in a circular array, the positioning groove (8) is matched with the wheel groove (9), and the notch positioning circular wheel (11) is matched with the positioning groove (8).

4. The connecting structure of a methane interrupter according to claim 3, wherein The rotating groove (14) is communicated with the plurality of circular cavities (10), and the cross-sectional diameter of the circular cavity (10) is greater than the cross-sectional diameter of the gear (13).

5. The connection structure of a methane interrupter according to claim 4, wherein The outer side wall of the inner tooth ring (15) in the rotating groove (14) is provided with a plurality of protruding edges, and the plurality of protruding edges on the inner tooth ring (15) are arranged in a circular array.

6. The connecting structure of a methane interrupter according to claim 4, wherein The spring positioning mechanism comprises a mounting plate (18), a positioning column (19) and a spring (20), the mounting plate (18) is movably mounted in the mounting groove (17), one side of the mounting plate (18) is fixedly connected with one end of the positioning column (19), the other end of the positioning column (19) extends into the circular cavity (10) and is inserted into the corresponding positioning hole (16) on one side of the gear (13), the other side of the mounting plate (18) is fixedly connected with one end of the spring (20), and the other end of the spring (20) is fixedly connected with the inner wall on one side of the mounting groove (17).

7. The connection structure of a methane interrupter according to claim 6, wherein The outer side wall of the wiring port (4) movably sleeves a circular ring (21), and the circular ring (21) is fixedly connected with a plurality of mounting plates (18).

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