CN109411959B

CN109411959B - Circuit connector with open circuit alarm function

Info

Publication number: CN109411959B
Application number: CN201811118272.6A
Authority: CN
Inventors: 罗方建; 柯力
Original assignee: Ningbo Kairui Meite Automobile Parts Industrial Co ltd
Current assignee: Ningbo Kairui Meite Automobile Parts Industrial Co ltd
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2020-04-21
Anticipated expiration: 2038-09-26
Also published as: CN109411959A

Abstract

The invention discloses a circuit connector with a circuit breaking alarm function, which comprises a shell and a rear cover detachably mounted on the shell, wherein two fan-shaped clamping grooves are symmetrically arranged on the mounting end surface of the shell, a limiting plate capable of shielding part of the clamping grooves is fixed at the upper ends of the clamping grooves, two sliding plates matched with the clamping grooves are symmetrically arranged on the mounting end surface of the rear cover, one end, away from the rear cover, of each sliding plate is provided with a clamping block matched with the corresponding clamping groove, the clamping block can be inserted into the clamping groove which is not shielded by the limiting plate, the clamping block moves in the clamping groove to the position below the limiting plate after the rear cover is rotated for a certain angle, and the limiting plate can limit the rear cover to be separated from the shell through the clamping block. The invention has reliable connection and has the function of warning when the connector is disconnected.

Description

Circuit connector with open circuit alarm function

Technical Field

The invention relates to the field of trucks, in particular to a circuit connector with an open circuit alarm function.

Background

Heavy trucks are generally equipped with a variety of electrical equipment, powered by the tractor. In order to achieve the power supply between the tractor and the trailer and between the trailer and the trailer, the connection is needed through an electric connector. The electric connector is mainly used for power transmission between the heavy tractor and the trailer and is responsible for providing safe and reliable lines for brake lamps, steering lamps and the like of the trailer so that commands of a driver such as braking and steering can be reflected on the trailer, and the purpose of driving safety is achieved.

However, the existing connector in the market does not have the function of disconnection alarm, and when the plug and the socket are separated, a driver can not know the disconnection alarm. When the driver's instructions cannot be reflected on the trailer, there is a significant safety hazard. For example, when a driver steps on a brake, a brake lamp at the tail of the vehicle is not on, and the vehicle behind the vehicle can easily collide with the tail. Therefore, it is a problem to be solved by those skilled in the art to design a circuit connector with a disconnection alarm function.

Disclosure of Invention

The invention mainly aims to provide a circuit connector with an open circuit alarm function, which is reliable in connection and has an alarm reminding function when the connector is disconnected.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a circuit connector with a circuit breaking alarm function comprises a shell and a rear cover detachably mounted on the shell, wherein two fan-shaped clamping grooves are symmetrically formed in the mounting end face of the shell, a limiting plate capable of shielding part of the clamping grooves is fixed at the upper ends of the clamping grooves, two sliding plates matched with the clamping grooves are symmetrically arranged on the mounting end face of the rear cover, a clamping block matched with the clamping grooves is arranged at one end, away from the rear cover, of each sliding plate, the clamping block can be inserted into the clamping grooves which are not shielded by the limiting plate, the clamping blocks move in the clamping grooves to the positions below the limiting plates after the rear cover is rotated for a certain angle, and the limiting plates can limit the rear cover to be separated from the shell through the clamping blocks; the lower part of one side of the clamping groove, which is far away from the limiting plate, is provided with a limiting rod capable of sliding up and down in the shell through a limiting rod spring, one side of the clamping groove is provided with a positioning rod capable of sliding horizontally in the shell through a positioning rod spring, one end of the positioning rod is fixedly provided with a rack with a tooth point positioned in the clamping groove, the fixture block is provided with a tooth block capable of being meshed with the rack, the other end of the positioning rod is fixedly provided with a locking rod capable of limiting the movement of the limiting rod, one side of the limiting rod, which is close to the positioning rod, is fixedly provided with a fixed block, the fixed block is provided with a limiting groove capable of allowing the locking rod to move, when the fixture block slides to the lower part of the limiting plate in the clamping groove, the tooth block drives the positioning rod to move horizontally through the rack, so that, so that the movement of the clamping block is limited by the limiting rod; a through hole capable of penetrating through a top rod is formed in the rear cover corresponding to the limiting rod, the top rod can push the limiting rod to enable the limiting rod to be separated from the clamping groove, the clamping block can be moved to the position above the limiting rod and then pulled away from the top rod, the clamping block is continuously moved, and the rear cover is disassembled; the alarm device is characterized in that an alarm device internally provided with a power supply and an alarm is fixed on the outer side of the shell, a main switch for controlling the power supply to work is further arranged on the alarm device, a first metal elastic sheet connected with the alarm is arranged on the side wall of the limiting plate, a second metal elastic sheet connected with the power supply is arranged on the side wall of the clamping groove, the first metal elastic sheet can be in contact with the second metal elastic sheet, so that a circuit between the power supply and the alarm is communicated, the main switch is opened to supply power to the power supply, the alarm immediately gives an alarm, when the rear cover is installed on the shell, the first metal elastic sheet is isolated from the second metal elastic sheet by the insulating sliding plate, so that the power supply and the alarm form an open circuit, the alarm does not give an alarm signal, and the circuit matching of the clamping groove and the sliding plate can be used as a sub switch of the, the shell is provided with two branch switches corresponding to the clamping grooves, and the two branch switches are connected in parallel on a connecting circuit of the power supply and the alarm.

As an improvement, the gag lever post is the cylinder structure, and with the three lateral wall of draw-in groove is tangent, works as the locking lever breaks away from during the spacing groove, the fixture block with gag lever post interval certain distance works as the gag lever post removes extremely when in the draw-in groove, fixture block reverse movement extremely with the tangent department of gag lever post drives the locking lever removes extremely the fixed block below, through the locking lever restriction the removal of fixed block. The limiting rod is further fixed, and the phenomenon that a limiting rod spring contracts when the vibration is too large can be avoided, so that the limiting rod cannot limit the clamping block. The steps in disassembly are more complicated, making the connection more secure.

As an improvement, an insulating rod is fixed at one end of the ejector rod, a positioning groove is formed at the other end of the ejector rod, a plug board with plug board holes at two ends can be inserted into the positioning groove in a matched mode, a mounting hole matched with the plug board holes is formed in the rear cover, and the plug board can be fixed on the rear cover through a fastening piece, so that the ejector rod is limited to move; the utility model discloses a safety alarm, including gag lever post spring, insulator spindle, switch, power, alarm, gag lever post spring one end be equipped with insulator spindle complex access groove, the access groove is connected the power with on the circuit between the alarm, work as the insulator spindle removes to when the access inslot, the power with form between the alarm and open circuit, work as the insulator spindle breaks away from during the access groove, the power with form the route between the alarm, the access groove with the branch switch is parallelly connected, two on the casing the access groove is also parallelly connected. Set up a plurality of parallelly connected switches, even when back lid and casing break away from, the slide still stays in the draw-in groove, and the insulator spindle breaks away from the access slot and also can trigger the alarm. The ejector rod controls the alarm device to work and can also be used as a tool for pressing the limiting rod during disassembly. The ejector rod is directly fixed on the rear cover, so that the situation that tools cannot be found during disassembly can be avoided.

As an improvement, two positioning grooves are arranged on the ejector rod, and the inserting plate can be selectively matched with the positioning grooves, so that the length of the ejector rod extending into the shell is controlled.

As an improvement, one end of the lock rod, which is close to the fixing block, is provided with an inclined surface matched with the limiting groove, and the limiting groove can push the positioning rod to move towards the direction far away from the fixing block through the inclined surface. During installation, the inclined surface pushes the limiting rod, and the limiting rod acts on the clamping block again, so that the rotation is more labor-saving during installation.

The inner cavity of the shell can be provided with a plug-in unit for installing a terminal, and an electric wire can pass through the inner cavity of the rear cover to be connected with the plug-in unit.

Compared with the prior art, the invention has the advantages that: the rear cover is clamped on the shell through rotation, so that the positioning is accurate and the installation and operation are simple; when the rear cover is disassembled, the limiting rod needs to be pressed firstly, and then the rear cover is rotated, so that the rear cover can be prevented from falling off due to vibration through two steps of operation; set up alarm device and can remind the user when casing and back lid separation, alarm device is equipped with two parallelly connected branch switches, as long as one of them slide breaks away from the draw-in groove, can send out the police dispatch newspaper, and is more sensitive.

Drawings

FIG. 1 is a schematic perspective view of a housing of the present invention;

FIGS. 2 to 3 are schematic perspective views of the rear cover of the present invention;

FIG. 4 is a schematic perspective view of the stem lifter of the present invention;

FIG. 5 is a top view of the housing of the present invention;

FIG. 6 is a perspective sectional view taken along the line A-A in FIG. 5;

FIG. 7 is a sectional view taken along line B-B of FIG. 5;

FIG. 8 is a schematic view of FIG. 7 in the process of mating the housing with the rear cover;

FIG. 9 is a schematic perspective view of a positioning rod of the present invention;

FIG. 10 is a schematic perspective view of a stop lever according to the present invention;

the names of the parts corresponding to the respective reference numerals are: 1. a housing; 11. a card slot; 12. a limiting plate; 13. an inner cavity of the shell; 14. an alarm device; 2. a rear cover; 21. a clamping block; 22. a slide plate; 23. a tooth block; 24. a through hole; 25. the inner cavity of the rear cover; 26. mounting holes; 3. a limiting rod; 31. a fixed block; 32. a limiting groove; 33. a via groove; 34. a stop lever spring; 4. positioning a rod; 41. a rack; 42. a lock lever; 43. a bevel; 44. a positioning rod spring; 5. a top rod; 51. an insulating rod; 52. positioning a groove; 53. inserting plates; 54. and (4) inserting plate holes.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The invention comprises a shell 1 and a rear cover 2 which is detachably arranged on the shell 1, wherein two fan-shaped clamping grooves 11 are symmetrically arranged on the mounting end surface of the shell 1, a limiting plate 12 which can shield part of the clamping grooves 11 is fixed at the upper end of the clamping grooves 11, two sliding plates 22 which are matched with the clamping grooves 11 are symmetrically arranged on the mounting end surface of the rear cover 2, a clamping block 21 which is matched with the clamping grooves 11 is arranged at one end of each sliding plate 22, which is far away from the rear cover 2, the clamping block 21 can be inserted into the clamping grooves 11 which are not shielded by the limiting plate 12, after the rear cover 2 is rotated for a certain angle, the clamping block 21 moves in the clamping grooves 11 to the lower part of the limiting plate 12, and the limiting plate 12 can limit the rear cover 2 to be separated from the; the lower part of the clamping groove 11, which is far away from one side of the limiting plate 12, is provided with a limiting rod 3 which can slide up and down in the shell 1 through a limiting rod spring 34, one side of the clamping groove 11 is provided with a horizontal sliding positioning rod 4 in the shell 1 through a positioning rod spring 44, one end of the positioning rod 4 is fixed with a rack 41 with a tooth tip positioned in the clamping groove 11, the fixture block 21 is provided with a tooth block 23 which can be meshed with the rack 41, the other end of the positioning rod 4 is fixed with a locking rod 42 which can limit the movement of the limiting rod 3, the limiting rod 3 is close to one side of the positioning rod 4 and is fixed with a fixing block 31, the fixing block 31 is provided with a limiting groove 32 which can be moved by the locking rod 42, when the fixture block 21 slides to the lower part of the limiting plate 12 in the clamping groove 11, the tooth block 23 drives the positioning rod 4 to move horizontally through the, the limiting rod 3 moves into the clamping groove 11 under the action of the limiting rod spring 34, so that the movement of the clamping block 21 is limited by the limiting rod 3; a through hole 24 capable of penetrating through an ejector rod 5 is formed in the rear cover 2 corresponding to the limiting rod 3, the ejector rod 5 can push the limiting rod 3 to enable the limiting rod 3 to be separated from the clamping groove 11, the clamping block 21 can be moved to a position above the limiting rod 3 and then is pulled away from the ejector rod 5, the clamping block 21 is continuously moved, and the rear cover 2 is disassembled; the alarm device 14 with a built-in power supply and an alarm is fixed on the outer side of the shell 1, a master switch for controlling the power supply to work is further arranged on the alarm device 14, a first metal elastic sheet connected with the alarm is arranged on the side wall of the limiting plate 12, a second metal elastic sheet connected with the power supply is arranged on the side wall of the clamping groove 11, the first metal elastic sheet can be in contact with the second metal elastic sheet, so that the power supply is communicated with a circuit between the alarm devices, the master switch is opened at the moment to supply power to the power supply, the alarm device immediately gives an alarm, when the rear cover 2 is installed on the shell 1, the first metal elastic sheet is isolated from the second metal elastic sheet by the insulating sliding plate 22, the power supply and the alarm device form an open circuit, the alarm device does not give an alarm signal, and the circuit matching of the clamping groove 11 and the sliding plate 22 can be regarded as a sub-switch of the alarm device, two branch switches are distributed on the shell 1 corresponding to the clamping groove 11, and the two branch switches are connected in parallel on a connecting circuit of the power supply and the alarm.

Specifically, gag lever post 3 is the cylinder structure, and with the three lateral wall of draw-in groove 11 is tangent, works as locking lever 42 breaks away from during the spacing groove 32, fixture block 21 with 3 interval certain distances of gag lever post, work as gag lever post 3 remove extremely during in the draw-in groove 11, fixture block 21 reverse movement extremely with the tangent department of gag lever post 3 drives locking lever 42 removes extremely fixed block 31 below, through locking lever 42 restriction the removal of fixed block 31.

Specifically, an insulating rod 51 is fixed at one end of the ejector rod 5, a positioning groove 52 is arranged at the other end of the ejector rod 5, an inserting plate 53 with inserting plate holes 54 at two ends can be inserted into the positioning groove 52 in a matching manner, a mounting hole 26 matched with the inserting plate hole 54 is arranged on the rear cover 2, and the inserting plate 53 can be fixed on the rear cover 2 by using a fastening piece, so that the movement of the ejector rod 5 is limited; the gag lever post 3 is kept away from gag lever post spring 34 serve be equipped with insulator spindle 51 complex access groove 33, access groove 33 is connected the power with on the circuit between the alarm, work as insulator spindle 51 removes extremely during access groove 33, the power with form between the alarm and open circuit, work as insulator spindle 51 breaks away from during access groove 33, the power with form the route between the alarm, access groove 33 with the branch switch is parallelly connected, two on the casing 1 access groove 33 also connects in parallel.

Specifically, two positioning grooves 52 are arranged on the top bar 5, and the inserting plate 53 can be selectively matched with the positioning grooves 52, so as to control the length of the top bar 5 extending into the shell 1.

Specifically, one end of the lock rod 42, which is close to the fixing block 31, is provided with an inclined surface 43 which is matched with the limiting groove 32, and the limiting groove 32 can push the positioning rod 4 to move in a direction away from the fixing block 31 through the inclined surface 43.

When the rear cover 2 is installed on the shell 1, the fixture block 21 is aligned and inserted into the slot 11, the rear cover 2 is rotated to move the fixture block 21 to the lower part of the limit plate 12, the gear block 23 drives the positioning rod 4 to move towards the direction far away from the limit rod 3 through the rack 41, the lock rod 42 is separated from the limit groove 32, the limit rod 3 moves towards the slot 11 under the action of the limit rod spring 34, the positioning rod 4 moves towards the limit rod 3 under the action of the positioning rod spring 44, due to the limiting function of the limiting rod 3 on the clamping block 21 and the meshing relation of the gear block 23 and the rack 41, the positioning rod 4 can only move a certain distance, the lock rod 42 moves to the lower part of the fixing block 31 to limit the limiting rod 3 to move downwards, the mandril 5 is inserted into the rear cover 2 through the through hole 24, the insulating rod 51 is inserted into the passage groove 33, the inserting plate 53 clamped in the positioning groove 52 is fixed on the rear cover 2 through a fastener, and the installation is completed. At this time, the main switch of the power supply in the alarm device 14 is turned on, and the alarm device 14 immediately gives an alarm as long as the insulating rod 51 is separated from the passage slot 33 or the slide plate 22 is separated from the card slot 11.

When needing to dismantle, close the power among the alarm device 14 earlier, dismantle the fixed back of picture peg 53 to ejector pin 5, make insulator spindle 51 break away from access groove 33, rotatory back lid 2 makes locking lever 42 remove the restriction to fixed block 31, rethread ejector pin 5 promotes gag lever post 3, make gag lever post 3 break away from draw-in groove 11, then the back lid 2 of counter rotation, when gag lever post 3 is pushed down to fixture block 21, remove ejector pin 5, continue rotatory back lid 2, until fixture block 21 can break away from draw-in groove 11, casing 1 reverts to initial condition, dismantle and accomplish.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims

1. A circuit connector with a disconnection warning function, comprising a housing (1) and a rear cover (2) detachably mounted on the housing (1), characterized in that: two fan-shaped clamping grooves (11) are symmetrically arranged on the mounting end face of the shell (1), a limiting plate (12) capable of shielding part of the clamping grooves (11) is fixed at the upper end of each clamping groove (11), two sliding plates (22) matched with the clamping grooves (11) are symmetrically arranged on the mounting end face of the rear cover (2), a clamping block (21) matched with the clamping grooves (11) is arranged at one end, away from the rear cover (2), of each sliding plate (22), the clamping block (21) can be inserted into the clamping groove (11) which is not shielded by the limiting plate (12), after the rear cover (2) is rotated for a certain angle, the clamping block (21) moves in the clamping groove (11) to be below the limiting plate (12), and the limiting plate (12) can limit the rear cover (2) to be separated from the shell (1) through the clamping block (21); the clamping groove (11) is far away from the lower part of one side of the limiting plate (12) and is provided with a limiting rod (3) capable of sliding up and down in the shell (1) through a limiting rod spring (34), one side of the clamping groove (11) is provided with a rack (41) with a tooth point positioned in the clamping groove (11) through a positioning rod spring (44), the other end of the positioning rod (4) is fixed with a locking rod (42) capable of limiting the movement of the limiting rod (3), the limiting rod (3) is close to one side of the positioning rod (4) and is fixed with a fixing block (31), the fixing block (31) is provided with a limiting groove (32) capable of supplying the locking rod (42) to move, the clamping block (21) slides in the clamping groove (11) to the lower part of the limiting plate (12), the tooth block (23) drives the positioning rod (4) to horizontally move through the rack (41), so that the lock rod (42) is separated from the limiting groove (32), the limiting rod (3) moves into the clamping groove (11) under the action of the limiting rod spring (34), and the movement of the clamping block (21) is limited through the limiting rod (3); a through hole (24) capable of penetrating through a top rod (5) is formed in the position, corresponding to the limiting rod (3), of the rear cover (2), the top rod (5) can push the limiting rod (3), so that the limiting rod (3) is separated from the clamping groove (11), the clamping block (21) can be moved to the position above the limiting rod (3) and then is pulled out of the top rod (5), the clamping block (21) is continuously moved, and the rear cover (2) is disassembled; the alarm device is characterized in that an alarm device (14) with a built-in power supply and an alarm is fixed on the outer side of the shell (1), a master switch for controlling the power supply to work is further arranged on the alarm device (14), a first metal elastic sheet connected with the alarm is arranged on the side wall of the limiting plate (12), a second metal elastic sheet connected with the power supply is arranged on the side wall of the clamping groove (11), the first metal elastic sheet can be in contact with the second metal elastic sheet, so that the power supply is communicated with a circuit between the alarm device, the master switch is opened to supply power to the power supply, the alarm device immediately gives an alarm, when the rear cover (2) is installed on the shell (1), the first metal elastic sheet is isolated from the second metal elastic sheet by the insulating sliding plate (22), so that the power supply and the alarm device form a circuit break, and the alarm device does not give an alarm signal, the circuit matching of the clamping groove (11) and the sliding plate (22) can be regarded as a branch switch of the alarm device (14) for use, two branch switches are distributed on the shell (1) corresponding to the clamping groove (11), and the two branch switches are connected in parallel on a connecting circuit of the power supply and the alarm.

2. The circuit connector with disconnection warning function according to claim 1, wherein: gag lever post (3) are the cylinder structure, and with the three lateral wall of draw-in groove (11) is tangent, works as locking lever (42) breaks away from during spacing groove (32), fixture block (21) with gag lever post (3) interval certain distance works as gag lever post (3) remove extremely during in draw-in groove (11), fixture block (21) reverse movement extremely with the tangent department in gag lever post (3) drives locking lever (42) remove extremely fixed block (31) below, through locking lever (42) restriction the removal of fixed block (31).

3. The circuit connector with disconnection warning function according to claim 1, wherein: an insulating rod (51) is fixed at one end of the ejector rod (5), a positioning groove (52) is formed in the other end of the ejector rod (5), inserting plates (53) with inserting plate holes (54) at two ends can be inserted in the positioning groove (52) in a matched mode, mounting holes (26) matched with the inserting plate holes (54) are formed in the rear cover (2), and the inserting plates (53) can be fixed on the rear cover (2) through fasteners, so that the ejector rod (5) is limited to move; keep away from gag lever post (3) gag lever post spring (34) serve be equipped with insulator spindle (51) complex access groove (33), access groove (33) are connected the power with on the circuit between the alarm, work as insulator spindle (51) remove extremely when in access groove (33), the power with form between the alarm and open circuit, work as insulator spindle (51) break away from during access groove (33), the power with form the route between the alarm, access groove (33) with the branch switch is parallelly connected, two on casing (1) access groove (33) are also parallelly connected.

4. A circuit connector with a disconnection warning function according to claim 3, wherein: two positioning grooves (52) are arranged on the ejector rod (5), and the inserting plate (53) can be selectively matched with the positioning grooves (52), so that the length of the ejector rod (5) extending into the shell (1) is controlled.

5. The circuit connector with disconnection warning function according to claim 1, wherein: one end of the lock rod (42) close to the fixing block (31) is provided with an inclined surface (43) matched with the limiting groove (32), and the limiting groove (32) can push the positioning rod (4) to move in the direction away from the fixing block (31) through the inclined surface (43).