CN108711700B - Connecting device and LED display screen - Google Patents
Connecting device and LED display screen Download PDFInfo
- Publication number
- CN108711700B CN108711700B CN201810319324.XA CN201810319324A CN108711700B CN 108711700 B CN108711700 B CN 108711700B CN 201810319324 A CN201810319324 A CN 201810319324A CN 108711700 B CN108711700 B CN 108711700B
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- base
- circuit board
- hole
- lock catch
- electric
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- 210000001503 joint Anatomy 0.000 claims description 34
- 230000026058 directional locomotion Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/621—Bolt, set screw or screw clamp
- H01R13/6215—Bolt, set screw or screw clamp using one or more bolts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a connecting device and an LED display screen. The connecting device comprises a first base, a second base, a connecting module and an electric conduction module: the first base and the second base are fixed together or separated under the drive of the connecting module; the electric conduction module comprises a first electric connecting piece and a second electric connecting piece which are respectively arranged in a first base and a second base, and when the first base and the second base are fixed together, the first electric connecting piece and the second electric connecting piece are spliced together; when the first base and the second base are separated, the first electrical connector and the second electrical connector are separated accordingly. By adopting the connecting device and the LED display screen, the electric connecting pieces are respectively arranged in the first base and the second base, so that the mechanical connection between the boxes is realized, the electric connection is realized, the operation flow is simplified, the operation time is shortened, the working efficiency is improved, and the production cost and the installation and maintenance cost are saved.
Description
Technical Field
The invention relates to the technical field of LED display screens, in particular to a connecting device and an LED display screen.
Background
The LED display screen is used as a terminal display medium and is used as a carrier of advertisement media, and is increasingly widely applied along with the rapid development of photoelectric technology and information technology along with the high-level prosperity of commercial development.
In the prior art, the LED display screen is formed by splicing the LED display screen boxes, and the LED display screen boxes are required to be mechanically connected and electrically connected at the same time. In order to realize mechanical connection, the boxes are mostly mechanically connected by adopting a lock catch (such as connecting the upper and lower adjacent boxes by an upper lock catch and a lower lock catch, and connecting the left and right adjacent boxes by a left lock catch and a right lock catch, wherein the electric connection is realized by directly perforating the side wall of the LED box, and a signal wire and a power wire thereof directly penetrate through the perforating to be communicated with the two adjacent LED boxes.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a connecting device and an LED display screen, which are used for solving the problems that in the prior art, when adjacent boxes of the LED display screen are connected, mechanical connection and electric connection are required to be respectively and independently installed, so that when the adjacent boxes are connected, the operation is complex, and the production cost and the installation and maintenance cost are high. Is a problem of (a).
In order to solve the above problems, an embodiment of the present invention provides a connection device, which includes a first base, a second base, a connection module, and an electrical conduction module:
The first base and the second base are fixed together or separated under the drive of the connecting module;
The electric conduction module comprises a first electric connecting piece and a second electric connecting piece which are respectively arranged in a first base and a second base, and when the first base and the second base are fixed together, the first electric connecting piece and the second electric connecting piece are spliced together; when the first base and the second base are separated, the first electrical connector and the second electrical connector are separated accordingly.
Optionally, the connection module is equipped with hasp and eccentric wheel, the eccentric wheel is installed on the first base, hasp one end is articulated through the round pin axle on the eccentric wheel, the other end of hasp is equipped with the lockhole, be equipped with on the second base with lockhole complex hasp post, works as the lockhole with the hasp post is in the same place, the round pin axle with the line of hasp post is located the top of the rotation central axis of eccentric wheel.
Optionally, the first electrical connector is a butt joint male connector, the first base is provided with a male connector groove, the male connector is slidably arranged in the male connector groove, the tail end of the male connector is hinged with a connecting rod, and the other end of the connecting rod is hinged on the eccentric wheel;
The second electric connecting piece is a butt joint female connector, a female connector groove is formed in the second base, and the butt joint female connector is fixed in the female connector groove;
the front end of the butt joint male head is in plug-in fit with the front end of the butt joint female head.
Optionally, the connection module is further provided with a handle and a positioning pin, the first base is provided with a positioning hole, the handle is provided with a chute, one end of the positioning pin is fixed in the positioning hole, the other end of the positioning pin is arranged in the chute, one end of the handle is hinged on the eccentric wheel, and the connecting rod, the handle and the hinge points locked on the eccentric wheel are sequentially arranged on the eccentric wheel in a clockwise sequence.
Optionally, the locking post is a nut post, a base threaded hole is formed in the second base, and the nut post is fixed on the second base through the base threaded hole; and a clamping position is arranged on the nut column, and the locking hole is matched with the clamping position.
Optionally, the first base and the second base are both provided with a base circuit board shell, a base circuit board is arranged in the base circuit board shell, and both front and back sides of the base circuit board are provided with female needle bases;
The electric conduction module comprises a conductive circuit board shell, a conductive circuit board is arranged in the conductive circuit board shell, and a male pin seat is arranged on the conductive circuit board;
The female needle seat on the back side of the base circuit board is used for being matched with the male needle seat of the display module of the LED display screen, and the female needle seat on the front side is used for being matched with the male needle seat of the conducting circuit board.
Optionally, one end of the conductive circuit board housing is mounted on the first base through a rotating shaft, and can rotate around the rotating shaft.
Optionally, the connection module includes a handle, a latch, and a latch post fixed to an end of the second base:
One end of the handle is provided with a circular driving wheel, a first eccentric hole is formed in the circular driving wheel, and the circular driving wheel is arranged at the end part of the first base and can rotate around the circle center of the circular driving wheel;
one end of the lock catch is arranged on the first eccentric hole through a bolt shaft, and the other end of the lock catch is locked or separated from the lock catch column under the drive of the handle.
Optionally, a circular groove with a notch is formed at the end part of the first base, and a circular driving wheel of the handle is arranged in the circular groove;
One end of the shell of the conducting circuit board is arranged at the same end of the circular groove of the first base through a rotating shaft;
The other end of the shell of the conductive circuit board is provided with a first inclined plane, the lock catch is provided with a second inclined plane corresponding to the first inclined plane, and when the lock catch locks the lock catch column, the second inclined plane of the lock catch compresses the first inclined plane of the shell of the conductive circuit board.
Optionally, the connection module is further provided with a positioning piece, and the positioning piece comprises a positioning pin, a connecting rod and a directional movement component: the directional movement component comprises a guide rail, the guide rail is provided with a guide groove, one end of the guide rail is provided with a directional column and a rotating shaft, and the guide rail, the directional column and the rotating shaft are perpendicular to each other;
a second eccentric hole is formed in the round driving wheel of the handle, and a bolt is arranged in the second eccentric hole and inserted into the guide groove of the guide rail;
The first base is provided with a directional column hole perpendicular to the bottom plate of the first base, and the directional column is matched with the directional column hole;
the positioning pin is arranged in the positioning pin hole of the first base, one end of the connecting rod is arranged on the rotating shaft and can rotate around the rotating shaft, and the other end of the connecting rod is hinged with the positioning pin; and is driven by the round driving wheel and the directional movement component to be inserted into or separated from the bolt hole.
In order to solve the above problems, an embodiment of the present invention further provides an LED display screen, where the LED display screen is formed by splicing display boxes, the display boxes include a box shell, a display module is disposed on a front surface of the box shell, adjacent display boxes are mechanically and electrically connected by a connection device according to any one of claims 1 to 9, one ends of a first electrical connector and a second electrical connector of the connection device are respectively connected with a power signal line of the respective box, and the other ends are mutually plugged together.
According to the connecting device and the LED display screen, the first base and the second base of the connecting device are connected together through the connecting module, the first electric connecting piece and the second electric connecting piece are arranged in the first base and the second base, when the first base and the second base are fixed together, the first electric connecting piece and the second electric connecting piece are spliced together, the mechanical connection between the boxes is realized, the electric connection is realized, the first electric connecting piece and the second electric connecting piece are directly arranged in the first base and the second base, and a wire through hole is not required to be formed in the box of the LED display screen, so that the firmness and the sealing performance of the LED box are improved, the production cost is effectively reduced, the operation flow is simplified, the operation time is shortened, the working efficiency is improved, and the production cost and the installation and maintenance cost are saved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that it is within the scope of the invention to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
Fig. 1 is a schematic perspective view illustrating a locked state of a connection device according to a second embodiment of the present invention;
Fig. 2 is a perspective view showing a state in which a first base and a second base of the connection device shown in fig. 1 are separated;
FIG. 3 is an exploded view of the connection device of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the connection device of FIG. 1 in a locked state;
FIG. 5 is a schematic cross-sectional view of the connection device of FIG. 1 in an unlocked state;
FIG. 6 is an exploded view of a third embodiment of the present invention;
FIG. 7 is a schematic view of the connection device shown in FIG. 6;
FIG. 8 is a schematic view showing the mating of the male and female hubs of the connection device shown in FIG. 6;
FIG. 9 is a schematic view of the position of a first eccentric aperture in the circular drive wheel of the handle when the coupling device of FIG. 6 is in a locked condition;
FIG. 10 is a schematic view of the positioning member of the connecting device shown in FIG. 6;
FIG. 11 is a schematic cross-sectional view of the coupling device of FIG. 6 in a locked state;
Fig. 12 is a schematic diagram of an LED display screen according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. In the description, suffixes such as "module", "part" or "unit" for representing elements are used only for facilitating the description of the present invention, and are not of specific significance per se. Thus, "module" and "component" may be used in combination.
The first embodiment of the invention provides a connecting device, which comprises a first base, a second base, a connecting module and an electric conduction module: the first base and the second base are fixed together or separated under the drive of the connecting module; the electric conduction module comprises a first electric connecting piece and a second electric connecting piece which are respectively arranged in the first base and the second base, and when the first base and the second base are fixed together, the first electric connecting piece and the second electric connecting piece are spliced together to realize electric connection; when the first base and the second base are separated, the first electric connector and the second electric connector are separated.
The connecting module is provided with a lock catch and an eccentric wheel, the eccentric wheel is arranged on the first base, one end of the lock catch is hinged on the eccentric wheel through a pin shaft, the other end of the lock catch is provided with a lock hole, the second base is provided with a lock catch column matched with the lock hole, and when the lock hole is matched with the lock catch column, a connecting line of the pin shaft and the lock catch column is positioned above a rotation central axis of the eccentric wheel.
The connecting device of this embodiment, first base and second base link together through the connection module, and set up first electric connector and second electric connector in first base and second base, when first base and second base are fixed together, first electric connector and this second electric connector peg graft together, realize electric conduction, only need between connecting device and box and with electric conduction module between set up the sealing washer just can reach good water-proof effects, compare with traditional electric connection that relies on between box power cord and signal line to realize between module and the box, the waterproof butt joint of power and signal connection line between the box has been saved in addition to the operation to power and signal connection line and waterproof butt joint, operating is simplified, operating time has been reduced, work efficiency has been improved, production cost and installation maintenance cost have been practiced thrift.
In a second embodiment of the present invention, another connection device is provided, please refer to fig. 1 to 5. The connecting device comprises: the first base 10', the second base 20', the connection module and the electrical conduction module.
It should be noted that, for convenience of description, in the embodiment of the present invention, one end of the first base and the second base, which are in contact with each other in the locked state, is referred to as a front end, and the other end is referred to as a rear end.
The rear end of the first base 10' is provided with an eccentric wheel mounting hole 112' and a handle positioning groove 114'. The handle positioning groove 114' is located at the rear upper side of the eccentric wheel mounting hole 112', and is provided with a positioning hole 113'. The first base 10 'is further provided with a male slot 111', and the male slot 111 'penetrates the first base 10' from front to back.
The rear end of the second base 20' is provided with a base screw hole 212', and a nut post 23' as a locking post is fixed to the second base 20' through the base screw hole 212 '. The nut post 23 'is provided with a detent 231'. The second base 20 'is further provided with a female slot 211', and the female slot 211 'penetrates the second base 20' from front to back.
The connection module is provided with a catch 15' and an eccentric 16', which eccentric 16' is mounted in an eccentric mounting hole 112' of the first base 10 '. One end of the lock catch 15' is provided with a main pin shaft hole 153' which is matched with the main pin shaft 18' and is hinged on the eccentric wheel 16' through the main pin shaft 18 '. The other end of the lock 15 'is provided with a locking hole 151' which can be matched with the nut post 23 'on the second base 20'.
In practical application, the connecting module may further be provided with a handle 13' and a positioning pin 19', wherein the front end of the connecting module is provided with a pin hole 131', and a handle pin shaft 17' passes through the pin hole 131' to hinge the handle 13' on the eccentric wheel 16 '. A sliding groove 132' is provided behind the pin hole 131', one end of the positioning pin 19' is fixed in the positioning hole 113' of the first base 10', and the other end is inserted into the sliding groove 132' and can slide in the sliding groove 132 '. The sliding groove 132' can limit the sliding displacement of the positioning pin 19', so as to limit the rotating angle of the handle 13', and avoid the friction damage of the eccentric wheel 16' caused by the overlarge up-and-down rotation amplitude of the handle 13 '.
The electrical conduction module includes a first electrical connector, in this embodiment, a mating male connector 12', and a second electrical connector, in this embodiment, a mating female connector 22'. The butt joint male head 12' is slidably disposed in the male head groove 111' of the first base, the front end of the butt joint male head 12' can be in plug-in fit with the front end of the butt joint female head 22' to realize electrical connection, and the tail end of the butt joint male head can be connected with the power line and the signal line 14' of the LED box (for convenience of description, the power line and the signal line are collectively referred to as power signal line). The tail end of the butt joint male head 12 'is also hinged with a connecting rod 121' through a pin 122', and the other end of the connecting rod 121' is hinged on the eccentric wheel 16 'through a pin 123'. The butt joint female connector 22 'is fixed in the female connector groove 211' of the second base 20', and the tail end of the butt joint female connector can be connected with the power signal wire 24' of the LED box body.
In the embodiment, the butt joint male head and the butt joint female head are directly arranged in the first base and the second base, so that a wire passing hole is not required to be formed in the LED box body; not only improves the firmness and the tightness of the LED box body, but also effectively reduces the production cost.
In this embodiment, the link 121', the handle 13', and the hinge points of the latch 15' on the eccentric 16' are sequentially disposed on the eccentric 16' in a clockwise order.
The connecting device can be applied to an LED display screen (shown in fig. 12), the LED display screen is formed by splicing a plurality of display boxes, the display boxes comprise a box shell 30', the front surface of the box shell 30' is provided with a display module, and the adjacent display boxes are mechanically and electrically connected through the connecting device. Four sides of the case housing 30 'are provided with at least two concave platforms for being matched with the first base part 10' or the second base part 20', the concave platforms are symmetrically arranged along the center line of the case housing 30', and the first base 10 'and the second base 20' of the connecting device are respectively fixed on the concave platforms corresponding to the adjacent display cases.
When the display box is installed, the front ends of the first base 10 'and the second base 20' of the adjacent display boxes are aligned and contacted, the handle 13 'is rotated downwards to drive the eccentric wheel 16' to rotate anticlockwise, the eccentric wheel 16 'pushes the connecting rod 121' to enable the butt joint male head 12 'to slide forwards, meanwhile, the eccentric wheel 16' also pushes the lock catch 15 'to move forwards, when the positioning pin 19' slides to the rearmost end of the sliding groove 132 '(as shown in fig. 4), the joint of the butt joint male head 12' stretches out of the first base 10 'and is in plug-in fit with the butt joint female head 22' to realize electric conduction, the lock hole 151 'of the lock catch 15' can be locked with the nut post 23 'of the second base 20', at the moment, the pin shaft 18 'and the vertical line L of the axis of the lock catch post 23' are located above (namely the locking side) of the rotation central axis L 'of the eccentric wheel 16', the lock catch is locked under the action of the tension, the eccentric wheel 16 'abuts against the inner side wall of the first base 10', and the inner side wall of the first base 10 'limits the continuous rotation of the eccentric wheel 16', and accordingly the first base 10 'and the second base 20' are completely locked. The arrangement of the nut post 23' can also effectively improve the connection firmness of the second base 20' and the lock catch 15', thereby avoiding the separation of the first base 10' and the second base 20', and ensuring the safety.
During unlocking, the handle 13 'is pushed upwards to drive the eccentric wheel 16' to rotate clockwise, the eccentric wheel 16 'pulls the connecting rod 121' to enable the butt joint male head 12 'to slide backwards, at the moment, the lock catch 15' is separated from the nut post 23 'to unlock, and when the positioning pin 19' slides to the forefront end of the sliding groove 132 '(as shown in fig. 5), the butt joint male head 12' is completely separated from the butt joint female head 22 'and retreated into the first base 10', and at the moment, the first base 10 'and the second base 20' are separated.
In practical application, in order to further prevent the lock catch 15 'and the second base 20' from accidentally disengaging from the nut post 23 'during locking, the lock catch 15' may be further provided with a locking screw groove 152 'for mounting a locking screw, and the base 10' is provided with a threaded hole 115', and the locking screw is matched with the threaded hole 115', so that the locking screw can be screwed after locking, and loosened before unlocking.
According to the connecting device, the first base and the second base are connected together through the connecting module, the first electric connecting piece and the second electric connecting piece are arranged in the first base and the second base, when the first base and the second base are fixed together, the first electric connecting piece and the second electric connecting piece are inserted together, the mechanical connection is realized, the electric conduction can be realized, in the aspect of water prevention, good water prevention effect can be achieved only by arranging the sealing rings between the connecting device and the box body and between the connecting device and the electric conduction module, compared with the traditional electric connection between the power line and the signal line between the box bodies to realize the module and the box body, the waterproof butt joint of the power supply and the signal connecting wire between the box bodies is omitted, the operation flow is simplified, the operation time is shortened, the working efficiency is improved, and the production cost and the installation and maintenance cost are saved.
A third embodiment of the present invention provides a connection device, which includes a first base 10, a second base 20, an electrical conduction module 30, and a connection module.
Referring to fig. 6 and 7, the first base 10 includes a base housing 11 and a sealing ring 12, a base circuit board housing 13 is disposed in the base housing 11, and a base circuit board 131 is disposed in the base circuit board housing. The back surface of the base circuit board 131 is provided with a female needle seat 133 matched with a male needle seat of a display module of the LED display screen, and the front surface is provided with a female needle seat 132 matched with a male needle seat 322 on the conducting circuit board 321.
The second base 20 includes a base housing 21 and a sealing ring 22, a base circuit board housing 23 is disposed in the base housing 21, and a base circuit board 231 is disposed in the base circuit board housing. The back surface of the base circuit board 231 is provided with a female pin seat 233 matched with the male pin seat of the display module of the LED display screen, and the front surface is provided with a female pin seat 232 matched with the male pin seat 323 on the conducting circuit board 321.
The electrical conduction module 30 comprises a conductive circuit board housing 31, a conductive circuit board 321 is arranged in the conductive circuit board housing, a male pin seat 322 is arranged on the conductive circuit board corresponding to the female pin seat of the first base 10, and a male pin seat 323 is arranged on the conductive circuit board corresponding to the female pin seat of the second base 20.
One end of the circuit board housing 31 is provided with a mounting portion 311 which can be mounted on the mounting hole 113 at the end of the first base housing 11 through a rotation shaft, and the other end can be rotated around the rotation shaft to be a free end. In this embodiment, because the plugging process of the male pin holder on the conductive circuit board housing and the female pin holders on the first base and the second base is not vertical, the male pin of the male pin holder and the female pin of the female pin holder in this embodiment may adopt a structure as shown in fig. 8:
the male needle of the male needle seat comprises a male needle head 6211, a male needle shell 6212 and a spring 6213 arranged in the male needle shell 6212, wherein the bottom end of the male needle head 6211 is arranged in the male needle shell 6212, the bottom surface is an inclined surface, and the spring 6213 is propped against the inclined surface;
the female needle of the female needle stand comprises a female needle shell 6311 and a through spring 6312 inside the female needle shell;
when the male needle 6211 and the female needle are mated, the male needle 6211 compresses the through-spring 6312 inside the female needle housing 6311 under the action of the spring 6213 to make an electrical connection.
With continued reference to fig. 7 and 8, the connection module includes a handle 41, a latch 42, a latch post 43, and a retainer 50.
One end of the handle 41 is provided with a circular driving wheel 411, the handle 41 is installed in a circular groove 114 at the end of the first base 10 through the circular driving wheel 411, and can rotate around the center of the circular driving wheel 411, and the circular groove 114 is also provided with a notch required for installing the handle. Specifically, the circular driving wheel 411 is connected to the grip 416 of the handle 41 by side plates 415 having a smaller width than the diameter of the side plates 415, and when the handle is mounted, the side plates 415 of the handle 41 are aligned with the notch of the circular groove 114, and the circular driving wheel 411 is pushed into the circular groove 114 from the side of the circular groove 114, so that the handle 41 can rotate around the center of the circular driving wheel 411 and cannot be separated from the circular groove 114.
The circular driving wheel 411 is provided with a first eccentric hole 412. One end of the lock catch 42 is mounted on the first eccentric hole 412 through the pin shaft 421, and the other end is a free end and is provided with a lock hole. When the handle 41 is required to be locked and unlocked, the handle 41 rotates towards the second base 20, the free end of the lock catch 42 is driven to move towards the lock catch column 43 through the first eccentric hole 412 and is locked with the lock catch column 43 in a matched mode, and when the handle 41 is rotated reversely, the lock catch 42 is driven to release the lock catch column 43 to unlock.
Referring to fig. 9, in the present embodiment, the position of the first eccentric hole 412 satisfies the following conditions: when the latch 42 locks the latch post 43 disposed on the second base 20, the center of the first eccentric hole 412 rotates to the position above the line L connecting the center of the circular driving wheel 411 and the stress point of the latch post 43, so that in the locked state, no matter which direction the latch 42 is pulled, the handle 41 cannot be opened, and the connection module is in a self-locking state and cannot be loosened.
Referring to fig. 11, in practical application, in the locked state, the free end of the lock catch 42 compresses the conductive circuit board housing 31, in order to make the lock catch 42 and the conductive circuit board housing 31 better achieve contact fit, a first inclined plane 312 may be disposed at the free end of the conductive circuit board housing 31, and a second inclined plane 421 is disposed at the free end of the lock catch 42 corresponding to the first inclined plane 312, when the lock catch 42 locks the lock catch post 43, the second inclined plane 421 compresses the first inclined plane 312 of the conductive circuit board housing 31, so that the conductive device cannot be loosened, and normal electrical connection is ensured.
Referring to fig. 6 and 10, the positioning member further includes: dowel pin 51, link 52 and directional movement member 53:
the directional movement member 53 is provided with a guide rail 531, a guide groove 532 is provided on the guide rail 531, and one end of the guide rail 531 is provided with a directional column 533 and a rotating shaft 534, wherein the guide rail 531, the directional column 533 and the rotating shaft 534 are perpendicular to each other.
The circular driving wheel 411 of the handle 41 is also provided with a second eccentric hole 413, and the second eccentric hole 413 is inserted into the guide groove 532 through a bolt 54; the first base housing 11 is provided with an orientation post hole perpendicular to the bottom plane thereof, and the orientation post 533 is fitted to the orientation post hole; the first base housing 11 is further provided with a positioning hole 112 matched with the positioning pin 51, one end of the positioning pin 51 is movably mounted on the rotating shaft 534 through the connecting rod 52, and the other end of the positioning pin passes through the positioning hole 112 of the first base housing 11 to be matched with the positioning hole 212 of the second base housing 21.
With continued reference to fig. 6, when the handle 41 is rotated to a position parallel to the attachment surface of the attachment device (i.e., parallel to the case) during the locking of the attachment device, the directional movement member 53 moves to a position closest to the bottom plane of the first base housing 11, and simultaneously pushes the link 52 to insert the positioning pin 51 into the positioning hole 212 of the second base housing 21, thereby positioning the two case positions.
During the unlocking of the connection means, the handle 41 is rotated to a position substantially perpendicular to the installation surface of the connection means, at this time, the directional movement member 53 is moved to a position away from the bottom plane of the first base housing 11, and the link 52 is pulled to disengage the positioning pin 51 from the positioning hole 212, and at the same time, the connection means is unlocked, the adjacent cases are unlocked, and the cases can be freely taken out from the LED display screen.
In this embodiment, connecting device can switch on the electric connection between the display module of installing on different boxes, only need set up the sealing washer between connecting device and box and with electric conduction module between just can reach good water-proof effects, compare with traditional electric connection who relies on between box power cord and signal line realization module and box, the waterproof butt joint of power and signal connection line between the box has been saved, and save the operation to power and signal connection line and waterproof butt joint, operation flow has been simplified, operating time has been reduced, work efficiency has been improved, production cost and installation maintenance cost have been saved. Meanwhile, when the electric connection is realized, the device can also realize the lock catch connection, and the box body can be quickly assembled and disassembled, so that the whole display screen is convenient to maintain.
On the basis of the foregoing embodiments, a fourth embodiment of the present invention provides an LED display screen, where the LED display screen is formed by splicing display boxes, the display boxes include a box housing 30', a display module is disposed on the front surface of the box housing 30', and adjacent display boxes are mechanically and electrically connected by a connection device such as a first, a second or a third connection device, and one ends of the first electrical connection piece and the second electrical connection piece are respectively connected with a power signal line of the respective box, and the other ends of the first electrical connection piece and the second electrical connection piece are mutually plugged together.
The four sides of the box body shell are provided with at least two sunken platforms which are used for being matched with a first base 10' or a second base 20' of the connecting device, the sunken platforms are symmetrically arranged along a 30' core line in the box body shell, and the first base 10' and the second base 20' of the connecting device are respectively fixed on two adjacent display boxes.
In practical application, a first sealing ring may be disposed between the first base and the display box mounted with the first base, a second sealing ring may be disposed between the second base and the display box mounted with the second base, a third sealing ring may be disposed at an opening of the first base corresponding to the male pin seat of the conductive circuit board, and a fourth sealing ring may be disposed at an opening of the second base corresponding to the male pin seat of the conductive circuit board (see fig. 6 and 8).
In this embodiment, connecting device can switch on the electric connection between the display module of installing on different boxes, only need set up the sealing washer between connecting device and box and with electric conduction module between just can reach good water-proof effects, compare with traditional electric connection who relies on between box power cord and signal line realization module and box, the waterproof butt joint of power and signal connection line between the box has been saved, and save the operation to power and signal connection line and waterproof butt joint, operation flow has been simplified, operating time has been reduced, work efficiency has been improved, production cost and installation maintenance cost have been saved. Meanwhile, when the electric connection is realized, the device can also realize the lock catch connection, and the box body can be quickly assembled and disassembled, so that the whole display screen is convenient to maintain.
The above disclosure is only a preferred embodiment of the present invention, and it is needless to say that the scope of the invention is not limited thereto, and therefore, the equivalent changes according to the claims of the present invention still fall within the scope of the present invention.
Claims (6)
1. The connecting device is characterized by comprising a first base, a second base, a connecting module and an electric conduction module: the first base and the second base are locked or separated under the drive of the connecting module;
The electric conduction module comprises a first electric connecting piece and a second electric connecting piece which are respectively arranged in a first base and a second base, and when the first base and the second base are locked, the first electric connecting piece and the second electric connecting piece are spliced together; when the first base and the second base are separated, the first electric connector and the second electric connector are separated;
The connecting module is provided with a lock catch and an eccentric wheel, the eccentric wheel is arranged on the first base, one end of the lock catch is hinged on the eccentric wheel through a pin shaft, the other end of the lock catch is provided with a lock hole, the second base is provided with a lock catch column matched with the lock hole, and when the lock hole is matched with the lock catch column, the connecting line of the pin shaft and the lock catch column is positioned above the rotation central axis of the eccentric wheel;
the first electric connecting piece is a butt joint male head, a male head groove is formed in the first base, the butt joint male head is slidably arranged in the male head groove, the tail end of the butt joint male head is hinged with a connecting rod, and the other end of the connecting rod is hinged to the eccentric wheel;
The second electric connecting piece is a butt joint female connector, a female connector groove is formed in the second base, and the butt joint female connector is fixed in the female connector groove;
the front end of the butt joint male head is in plug-in fit with the front end of the butt joint female head;
the connecting module is also provided with a handle and a locating pin, the first base is provided with a locating hole, the handle is provided with a chute, one end of the locating pin is fixed in the locating hole, the other end of the locating pin is arranged in the chute, one end of the handle is hinged on the eccentric wheel, and the connecting rod, the handle and the hinging points locked on the eccentric wheel are sequentially arranged on the eccentric wheel in a clockwise order;
the locking post is a nut post, a base threaded hole is formed in the second base, and the nut post is fixed on the second base through the base threaded hole; the nut column is provided with a clamping position, and when the lock hole is matched with the clamping position;
The first base and the second base are respectively provided with a base circuit board shell, a base circuit board is arranged in the base circuit board shell, and both front and back sides of the base circuit board are respectively provided with a female needle seat;
The electric conduction module comprises a conductive circuit board shell, a conductive circuit board is arranged in the conductive circuit board shell, and a male pin seat is arranged on the conductive circuit board;
The female needle seat on the back side of the base circuit board is used for being matched with the male needle seat of the display module of the LED display screen, and the female needle seat on the front side is used for being matched with the male needle seat of the conducting circuit board.
2. The connection device according to claim 1, wherein one end of the conductive circuit board housing is mounted on the first base by a rotation shaft and is rotatable about the rotation shaft.
3. The connection device of claim 1, wherein the connection module comprises a handle, a latch, and a latch post secured to an end of the second base:
One end of the handle is provided with a circular driving wheel, a first eccentric hole is formed in the circular driving wheel, and the circular driving wheel is arranged at the end part of the first base and can rotate around the circle center of the circular driving wheel;
one end of the lock catch is arranged on the first eccentric hole through a bolt shaft, and the other end of the lock catch is locked or separated from the lock catch column under the drive of the handle.
4. The connecting device of claim 3, wherein,
The end part of the first base is provided with a round groove with a notch, and a round driving wheel of the handle is arranged in the round groove;
One end of the shell of the conducting circuit board is arranged at the same end of the circular groove of the first base through a rotating shaft;
The other end of the shell of the conductive circuit board is provided with a first inclined plane, the lock catch is provided with a second inclined plane corresponding to the first inclined plane, and when the lock catch locks the lock catch column, the second inclined plane of the lock catch compresses the first inclined plane of the shell of the conductive circuit board.
5. The connecting device according to claim 3 or 4, wherein,
The connecting module is also provided with a positioning piece, and the positioning piece comprises a positioning pin, a connecting rod and a directional movement component: the directional movement component comprises a guide rail, the guide rail is provided with a guide groove, one end of the guide rail is provided with a directional column and a rotating shaft, and the guide rail, the directional column and the rotating shaft are perpendicular to each other;
a second eccentric hole is formed in the round driving wheel of the handle, and a bolt is arranged in the second eccentric hole and inserted into the guide groove of the guide rail;
The first base is provided with a directional column hole perpendicular to the bottom plate of the first base, and the directional column is matched with the directional column hole;
The positioning pin is arranged in the positioning pin hole of the first base, one end of the connecting rod is arranged on the rotating shaft and can rotate around the rotating shaft, and the other end of the connecting rod is hinged with the positioning pin; and the round driving wheel and the directional movement component are driven to be inserted into or separated from the positioning pin hole.
6. The LED display screen is characterized in that the LED display screen is formed by splicing display boxes, each display box comprises a box shell, a display module is arranged on the front face of each box shell, the adjacent display boxes are mechanically connected and electrically connected through the connecting device according to any one of claims 1 to 5, one ends of a first electric connecting piece and a second electric connecting piece of the connecting device are respectively connected with a power signal wire of each box, and the other ends of the first electric connecting piece and the second electric connecting piece are mutually spliced together.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017102319782 | 2017-04-11 | ||
| CN201710231978 | 2017-04-11 |
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| Publication Number | Publication Date |
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| CN108711700A CN108711700A (en) | 2018-10-26 |
| CN108711700B true CN108711700B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810319324.XA Active CN108711700B (en) | 2017-04-11 | 2018-04-11 | Connecting device and LED display screen |
| CN201820507791.0U Expired - Fee Related CN208461068U (en) | 2017-04-11 | 2018-04-11 | A kind of attachment device and LED display |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820507791.0U Expired - Fee Related CN208461068U (en) | 2017-04-11 | 2018-04-11 | A kind of attachment device and LED display |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711700B (en) * | 2017-04-11 | 2024-04-19 | 邵海艳 | Connecting device and LED display screen |
| CN110085131A (en) * | 2019-04-15 | 2019-08-02 | 泉州圆创机械技术开发有限公司 | It is a kind of convenient for quick despatch and splice adjustable angle LED display |
| CN111244690B (en) * | 2020-01-08 | 2021-09-03 | 上海龙创汽车设计股份有限公司 | Connector for automobile data transmission |
| CN113601437A (en) * | 2020-05-04 | 2021-11-05 | 苏州汉扬精密电子有限公司 | Quick plug wire module and device |
| CN114646750B (en) * | 2022-05-13 | 2022-10-14 | 中国地质环境监测院(自然资源部地质灾害技术指导中心) | Soil environment real-time supervision device |
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|---|---|---|---|---|
| CN101536270A (en) * | 2006-09-11 | 2009-09-16 | Jst公司 | In-line sealed electrical connector apparatus |
| CN102606567A (en) * | 2012-03-16 | 2012-07-25 | 利亚德光电股份有限公司 | Connecting device, LED (light emitting diode) display unit and LED display system |
| CN103618169A (en) * | 2013-11-14 | 2014-03-05 | 贵州航天电器股份有限公司 | Separable electric connector capable of electrically connecting shells |
| CN208461068U (en) * | 2017-04-11 | 2019-02-01 | 邵海艳 | A kind of attachment device and LED display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168702B (en) * | 2011-01-26 | 2012-11-14 | 深圳市洲明科技股份有限公司 | Latch connecting device, light emitting diode (LED) box body and LED display screen |
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2018
- 2018-04-11 CN CN201810319324.XA patent/CN108711700B/en active Active
- 2018-04-11 CN CN201820507791.0U patent/CN208461068U/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101536270A (en) * | 2006-09-11 | 2009-09-16 | Jst公司 | In-line sealed electrical connector apparatus |
| CN102606567A (en) * | 2012-03-16 | 2012-07-25 | 利亚德光电股份有限公司 | Connecting device, LED (light emitting diode) display unit and LED display system |
| CN103618169A (en) * | 2013-11-14 | 2014-03-05 | 贵州航天电器股份有限公司 | Separable electric connector capable of electrically connecting shells |
| CN208461068U (en) * | 2017-04-11 | 2019-02-01 | 邵海艳 | A kind of attachment device and LED display |
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|---|---|
| CN108711700A (en) | 2018-10-26 |
| CN208461068U (en) | 2019-02-01 |
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