On-off detection structure of IO terminal block

Abstract

The utility model discloses an on-off detection structure of an IO terminal block, which comprises a transverse connection metal piece fixedly arranged on a plug of the IO terminal block and a pair of on-off detection pins arranged on a socket of the IO terminal block at intervals, the two ends of the transverse connection metal piece are respectively in contact conduction with a pair of on-off detection pins on the socket to form a closed path, an on-off signal generating device is formed on the closed path, and the on-off signal generating device can send out a plug and socket plugging in-place signal when the transverse connection metal piece and the on-off detection pins form the closed path. According to the on-off detection structure of the IO terminal block, stable connection between the terminals after the plug and the socket are plugged is ensured, stable signal transmission is further realized, meanwhile, the damage to the terminals caused by excessive force when the plug and the socket are plugged can be avoided, through the on-off detection structure of the IO terminal block, a user can more conveniently and rapidly carry out stable plugging on the plug and the socket of the IO terminal block, and the user experience is improved. And the use convenience of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an IO terminal board, especially an on-off detection structure of IO terminal board. BACKGROUND

[0002] At present, whether the plug of IO terminal board is inserted in place after the plug and socket are inserted is not explicitly prompted, and whether the plug is inserted in place after the plug and socket of IO terminal board are inserted cannot be determined, if not inserted in place during insertion, subsequent signal transmission will be poor, and a circuit will be broken, and if too much force is used during insertion, the terminal will be easily damaged. UTILITY MODEL CONTENTS

[0003] In order to make up for the above shortcomings, the utility model provides an on-off detection structure of IO terminal board, which can detect the on-off when the plug and socket are inserted, so that the user can clearly understand whether the plug is inserted in place, and the insertion is convenient and fast.

[0004] The utility model discloses in order to solve its technical problem adopts the technical scheme: an on-off detection structure of IO terminal board, including the horizontal connection metal piece fixed on the plug of IO terminal board and a pair of interval set on-off detection needle of socket of IO terminal board, the plug and socket are inserted in place make, the both ends of horizontal connection metal piece respectively with a pair of on-off detection needle of socket contact and lead to form closed path, the closed path forms on-off signal generating device, on-off signal generating device can send the plug and socket insertion in place signal when the closed path is formed to horizontal connection metal piece and on-off detection needle.

[0005] As a further improvement of the utility model, the horizontal connection metal piece is in U-shaped structure, and the contact points protruding outward are formed on the two side walls of the U-shaped structure of the horizontal connection metal piece, the two side walls of the U-shaped structure of the horizontal connection metal piece can be inserted into the gap between the pair of on-off detection needles on the socket, and the contact points on the two side walls of the U-shaped structure of the horizontal connection metal piece can be elastically abutted on the opposite sides of the pair of on-off detection needles on the socket.

[0006] As a further improvement of the utility model, the contact points on the two side walls of the U-shaped structure of the horizontal connection metal piece are V-shaped bending, arc bending and convex structure outwardly bent.

[0007] As a further improvement of the utility model, one end of the plug can be hingedly connected to one end of the shell of the socket, after the plug and the socket are completely inserted, the other end of the plug can be buckled and connected to the other end of the shell of the socket, the horizontal connection metal piece is arranged on the side wall of the other end of the plug, and the pair of on-off detection needles are arranged on the other end of the socket.

[0008] As a further improvement of this utility model, the other end of the socket housing is provided with a hook structure, and the other end of the plug is provided with an elastic arm. The elastic arm is provided with a locking point. When the plug is inserted into the socket by rotating, the locking point on the elastic arm at the other end of the plug can be engaged with the hook structure at the other end of the socket housing. Moving the elastic arm at the other end of the plug can disengage the locking point from the hook structure. Assuming the socket is in the downward direction and the plug is in the upward direction, the horizontal connecting metal part is located in the space below the elastic cantilever at the other end of the plug.

[0009] As a further improvement of this utility model, the plug includes an insulating body, an insulating cover, and plug terminals. The insulating cover can be fixedly inserted into the lower open portion of the insulating body. The insulating body and the insulating cover are spliced ​​together to form several terminal receiving grooves for fixing and positioning each plug terminal. The side wall of the insulating cover is provided with an outwardly protruding plug block. The horizontal connecting metal piece can be sleeved on the outside of the outwardly protruding plug block. The side wall of the insulating body is provided with a pressure cap structure with an open lower end. When the insulating cover is inserted into the open portion of the insulating body, the outwardly protruding plug block on the insulating cover and the horizontal connecting metal piece on it can be inserted together into the pressure cap structure of the insulating body. The bottom of the U-shaped structure of the horizontal connecting metal piece is tightly clamped between the outwardly protruding plug block and the pressure cap structure. The horizontal connecting metal piece and the outwardly protruding plug block can be inserted together into the gap between a pair of continuity detection pins.

[0010] As a further improvement of this utility model, the two opposite side walls of the protruding insert are respectively provided with clearance grooves that are directly opposite to the two side walls of the U-shaped structure of the horizontal connecting metal part. The two side walls of the U-shaped structure of the horizontal connecting metal part can be accommodated in the clearance grooves, and the contact points on the two side walls of the U-shaped structure of the horizontal connecting metal part protrude outward from the clearance grooves.

[0011] As a further improvement of this utility model, the lower end of the clearance groove opening of the protruding insert is provided with a blocking wall, and the ends of the two side walls of the U-shaped structure of the horizontal connecting metal part are stopped on the blocking wall and cannot be removed from the clearance groove.

[0012] As a further improvement of this utility model, the upper end of the protruding plug block is formed with a groove that matches the horizontal connecting metal part, and the bottom and root of the U-shaped structure of the horizontal connecting metal part can be accommodated in the groove.

[0013] As a further improvement of this utility model, the upper end of the continuity detection needle is formed with a chamfered surface that has been reduced in size.

[0014] The beneficial technical effects of this utility model are as follows: This utility model sets a pair of continuity detection pins on the socket of the IO terminal block and installs a horizontal connecting metal piece on the plug of the IO terminal block. When the plug and socket of the IO terminal block are plugged in, the two ends of the horizontal connecting metal piece and the pair of continuity detection pins are in close contact to form a closed conducting loop. A continuity signal generator is set on this closed loop. When the loop is closed, the continuity signal generator is energized and sends a conduction signal; otherwise, the continuity signal generator does not send a conduction signal. This allows users to clearly know whether the plug is plugged in properly when plugging and unplugging the IO terminal block, ensuring a stable connection between the terminals after plugging and unplugging, thereby achieving stable signal transmission. At the same time, it can avoid damage to the terminals due to excessive force when plugging and unplugging the plug and socket. Through this continuity detection structure of the IO terminal block, users can more conveniently and quickly plug and unplug the IO terminal block, improving user convenience. Attached Figure Description

[0015] Figure 1 This is a perspective view of the plug of this utility model;

[0016] Figure 2 This is a perspective view of the socket of this utility model;

[0017] Figure 3 This is an exploded perspective view of the plug of this utility model;

[0018] Figure 4 This is a schematic diagram of the signal conduction state of the plug and socket of this utility model;

[0019] Figure 5 for Figure 4 Sectional view along line AA;

[0020] Figure 6 This is a schematic diagram of the plug and socket signal disconnection state of this utility model;

[0021] Figure 7 for Figure 6 Sectional view along the BB direction;

[0022] Figure 8 This is a schematic diagram illustrating the connection and engagement principle of the plug and socket of the I / O terminal block. Detailed Implementation

[0023] The embodiment is a plug-in detection structure of an IO terminal table, which comprises a transverse connecting metal piece 11 fixed on a plug 1 of the IO terminal table and a pair of interval arranged plug-in detection pins 21 arranged on a socket 2 of the IO terminal table. The plug 1 and the socket 2 are inserted into position, the transverse connecting metal piece 11 is in contact with the pair of plug-in detection pins 21 on the socket 2 at both ends to form a closed path, and a plug-in signal generating device is formed on the closed path. The plug-in signal generating device can send a signal that the plug 1 and the socket 2 are inserted into position when the transverse connecting metal piece 11 and the plug-in detection pins 21 form a closed path.

[0024] When the plug 1 is inserted into the socket, the transverse connecting metal piece connects and conducts the two interval arranged plug-in detection pins 21 on the socket 2, and then the detection circuit forms a closed path. The signal sent by the plug-in signal generating device expresses that the product is completely inserted, and the user can normally use the information. The plug-in signal generating device can be an LED lamp or a text display on a display screen, or a buzzer and the like.

[0025] During the insertion of the plug 1, the transverse connecting metal piece is inserted later than other points on the plug 1 to ensure the correctness of the indication information and increase the safety of use.

[0026] During the pulling out of the plug 1, the transverse connecting metal piece gradually separates from the plug-in detection pins 21 on the socket 2, the path becomes open, and the user receives the information that the product is disconnected.

[0027] The plug-in detection pins 21 on the socket 2 are preferably pin needle terminal structures same as the terminals in the socket 2, which does not increase the parts and saves the cost.

[0028] The transverse connecting metal piece 11 is in a U-shaped structure, and contact points 111 are formed on the two side walls of the U-shaped structure of the transverse connecting metal piece 11 and protrude outward. The two side walls of the U-shaped structure of the transverse connecting metal piece 11 can be inserted into the gap between the pair of plug-in detection pins 21 on the socket 2, and the contact points 111 on the two side walls of the U-shaped structure of the transverse connecting metal piece 11 can be elastically tightly abutted on the opposite side surfaces of the pair of plug-in detection pins 21 on the socket 2. The transverse connecting metal piece 11 adopts a U-shaped structure, the two side walls of the U-shaped structure form a spring structure, the contact points 111 on the two side walls of the U-shaped structure can be in close contact with the side walls of the plug-in detection pins 21, and a stable conduction state is maintained. The transverse connecting metal piece 11 can also be in a circular ring structure or a straight line structure, which are equivalent replacement structures easily thought by those skilled in the art according to the present application and belong to the protection range of the present patent.

[0029] The contact points 111 on the two side walls of the U-shaped structure of the transverse connecting metal piece 11 are in outward bending V-shaped bending, arc bending and convex structure.

[0030] The plug 1 can be hingedly connected to one end of the shell of the socket 2, and after the plug 1 is fully inserted into the socket 2, the other end of the plug 1 can be snap-fit connected to the other end of the shell of the socket 2. The transverse metal piece 11 is arranged on the side wall of the other end of the plug 1, and a pair of on-off detection pins 21 are arranged on the other end of the socket 2. Since the other end of the plug 1 is finally inserted into the socket 2, when the other end of the plug 1 is fully inserted, the plug 1 and the socket 2 are in the fully inserted state. Therefore, only the transverse metal piece 11 needs to be arranged on the other end of the plug 1, thereby saving cost and avoiding occupying space of the terminal table.

[0031] The other end of the shell of the socket 2 is provided with a clamping hook structure 22, the other end of the plug 1 is provided with an elastic arm 12, the elastic arm 12 is provided with a clamping point 121, when the plug 1 is inserted into the socket 2 by rotating, the clamping point 121 on the elastic arm 12 of the other end of the plug 1 can be snap-fit connected to the clamping hook structure 22 of the other end of the shell of the socket 2, and the clamping point 121 can be disengaged from the clamping hook structure 22 by pulling the elastic arm 12 of the other end of the plug 1. The direction in which the socket 2 is arranged is downward, and the direction in which the plug 1 is arranged is upward. The transverse metal piece 11 is arranged in the space below the elastic cantilever of the other end of the plug 1. The IO terminal table of the rotating plug structure is provided with a transverse metal piece at the end of the plug, which is used to indicate whether the terminal table is fully inserted into the base. The transverse metal piece is arranged below the elastic arm 12, thereby occupying small space and hardly affecting the product size.

[0032] The plug 1 comprises an insulating body 13, an insulating cover 14 and plug-in terminals 15. The insulating cover 14 can be fixedly inserted into the open end of the insulating body 13. A plurality of terminal accommodating grooves for fixing and positioning the plug-in terminals 15 are formed by splicing between the insulating body 13 and the insulating cover 14. The side wall of the insulating cover 14 is provided with an outward protruding plug-in block 141. The transverse metal piece 11 can be sleeved outside the outward protruding plug-in block 141. The side wall of the insulating body 13 is provided with a lower end opening gland structure 131. When the insulating cover 14 is inserted into the open end of the insulating body 13, the outward protruding plug-in block 141 and the transverse metal piece 11 thereon can be inserted into the gland structure 131 of the insulating body 13 together. The U-shaped structure of the transverse metal piece 11 is tightly clamped between the outward protruding plug-in block 141 and the gland structure 131. The transverse metal piece 11 and the outward protruding plug-in block can be inserted into the gap between a pair of on-off detection pins 21 together. The above splicing structure can be used to simultaneously position the transverse metal piece when the insulating cover 14 is inserted into the open end of the insulating body 13. The structure makes the transverse metal piece easy to install and increases the assembly efficiency.

[0033] The two opposite side walls of the outward protruding plug block are respectively provided with an avoiding groove 142 opposite to the two side walls of the U-shaped structure of the cross connecting metal piece 11, the two side walls of the U-shaped structure of the cross connecting metal piece 11 can be accommodated in the avoiding groove 142, and the contact point 111 on the two side walls of the U-shaped structure of the cross connecting metal piece 11 protrudes outside the avoiding groove 142. When the plug 1 is plugged with the socket 2, the cross connecting metal piece 11 and the outward protruding plug block are inserted between a pair of on-off detection pins 21, when the contact point 111 on the outward protruding structure of the two side walls of the cross connecting metal piece 11 contacts the on-off detection pin 21, the two side walls of the cross connecting metal piece 11 can be elastically deformed to swing towards the direction of the avoiding groove 142, to ensure the smooth plugging of the plug 1 and the socket 2, and to avoid interference or increase the plugging force.

[0034] The avoiding groove 142 of the outward protruding plug block is provided with a blocking wall 143 at the opening lower end, the end of the two side walls of the U-shaped structure of the cross connecting metal piece 11 is stopped on the blocking wall 143 and cannot be taken out of the avoiding groove 142. This structure can prevent the outward protruding of the two side walls of the cross connecting metal piece 11 from causing the plug to be unable to be smoothly inserted between a pair of on-off detection pins 21.

[0035] The upper end of the outward protruding plug block 141 is formed with a groove 144 matched with the cross connecting metal piece 11, the bottom of the U-shaped structure of the cross connecting metal piece 11 and the root of the two side walls can be accommodated in the groove 144. This structure can stably position the cross connecting metal piece 11 and avoid its emission tube from shaking.

[0036] The on-off detection pin 21 is formed with a size-reduced chamfer surface 211 at the upper end. The chamfer surface 211 has a guiding effect on the cross connecting metal piece 11, thereby ensuring smooth plugging.

Claims

1. A continuity detection structure for an I / O terminal block, characterized in that: The utility model relates to an IO terminal table, which comprises a cross-connecting metal piece (11) fixed on a plug (1) and a pair of intervally arranged on-off detection pins (21) on a socket (2) of the IO terminal table.

2. The on-off detection structure of the IO terminal table according to claim 1, characterized in that: The cross-connecting metal piece is in U-shaped structure, and the two side walls of the U-shaped structure are respectively provided with outwardly protruding contact points (111), the two side walls of the U-shaped structure can be inserted into the gap between the pair of on-off detection pins on the socket, and the contact points on the two side walls of the U-shaped structure can be elastically tightly abutted against the opposite sides of the pair of on-off detection pins on the socket.

3. The on-off detection structure of the IO terminal table according to claim 2, characterized in that: The contact points on the two side walls of the U-shaped structure of the cross-connecting metal piece are in outwardly curved V-shaped bending, arc bending or convex structure.

4. The on-off detection structure of the IO terminal table according to claim 2, characterized in that: One end of the plug can be hingedly connected to one end of the shell of the socket, and the other end of the plug can be buckled and connected to the other end of the shell of the socket after the plug and the socket are completely plugged together, the cross-connecting metal piece is arranged on the side wall of the other end of the plug, and the pair of on-off detection pins are arranged on the other end of the socket.

5. The on-off detection structure of the IO terminal table according to claim 4, characterized in that: The other end of the shell of the socket is provided with a clamping hook structure (22), the other end of the plug is provided with an elastic arm (12), the elastic arm is provided with a clamping point (121), when the plug is inserted into the socket by rotating, the clamping point on the elastic arm of the other end of the plug can be buckled and connected to the clamping hook structure of the other end of the shell of the socket, the clamping point can be uncoupled from the clamping hook structure by pulling the elastic arm of the other end of the plug, the direction in which the socket is arranged is downward, and the direction in which the plug is arranged is upward, the cross-connecting metal piece is located in the space below the elastic cantilever at the other end of the plug.

6. The on-off detection structure of the IO terminal table according to claim 2 or 4, characterized in that: The plug comprises an insulating body (13), an insulating cover (14) and a plug-in terminal (15), the insulating cover can be fixedly inserted into the open end of the insulating body, a plurality of terminal accommodating grooves for fixing and positioning the plug-in terminals are formed by splicing between the insulating body and the insulating cover, the side wall of the insulating cover is provided with an outwardly protruding plug-in block (141), the cross-connecting metal piece can be sleeved outside the outwardly protruding plug-in block, the side wall of the insulating body is provided with a lower-end-opened gland structure (131), when the insulating cover is inserted into the open end of the insulating body, the outwardly protruding plug-in block on the insulating cover and the cross-connecting metal piece thereon can be inserted into the gland structure of the insulating body together, the U-shaped structure of the cross-connecting metal piece is tightly clamped between the outwardly protruding plug-in block and the gland structure, and the cross-connecting metal piece and the outwardly protruding plug-in block can be inserted into the gap between the pair of on-off detection pins together.

7. The on-off detection structure of the IO terminal table according to claim 6, characterized in that: The two opposite side walls of the outwardly protruding plug-in block are respectively provided with avoidance grooves (142) opposite to the two side walls of the U-shaped structure of the cross-connecting metal piece, the two side walls of the U-shaped structure of the cross-connecting metal piece can be accommodated in the avoidance grooves, and the contact points on the two side walls of the U-shaped structure of the cross-connecting metal piece protrude outside the avoidance grooves.

8. The on-off detection structure of the IO terminal table according to claim 7, characterized in that: The outer convex plug has a blocking wall (143) at the lower end of the avoiding slot opening, and the end of the two side walls of the U-shaped structure of the cross connecting metal piece is blocked on the blocking wall and cannot be taken out of the avoiding slot.

9. The on-off detection structure of the IO terminal table according to claim 6, characterized in that: The upper end of the outer convex plug forms a groove (144) matched with the cross connecting metal piece, and the bottom and the root of the two side walls of the U-shaped structure of the cross connecting metal piece can be accommodated in the groove.

10. The on-off detection structure of the IO terminal table according to claim 1, characterized in that: The upper end of the on-off detection needle forms a size-contracted chamfer surface (211).

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