CN205282783U - A connection device with fool-proof signal line sequence - Google Patents

Abstract

The utility model discloses a connection device with signal line sequence and anti-fooling, which comprises a connection device body, the connection device body includes a side pressure device and a groove, and the side pressure device is located above the side of the groove , the bottom of the groove is provided with sockets, the sockets correspond to the terminals of the connecting wires to be tested one by one, the sockets are connected with thimbles, and the thimbles are arranged at the bottom of the connecting device body. The groove depth mentioned above is consistent with the plastic body height of the connection line to be tested. The utility model restricts the position of the connecting line to be tested by the shape of the groove, and the position of the connecting hole is not in the middle position, so that the connecting line to be tested can only be connected to the socket under the condition of the correct orientation, avoiding Eliminates the unfavorable phenomenon that the signal line can pass the test even when the sequence of the signal line itself is wrong, and realizes the fool-proof design of the line sequence of the signal line. The overall structure is simple, the test result is highly reliable, and it is easy to implement.

Description

A connection device with fool-proof signal line sequence

technical field

The utility model relates to the field of signal line production equipment, in particular to a connection device with signal line sequence and anti-fooling.

Background technique

Signal lines mainly refer to the lines used to transmit sensing information and control information in electrical control circuits; signal lines are often composed of multiple cables as one or more bundles of transmission lines, and can also be arranged in printed circuit boards. Printed lines, with the continuous advancement of technology and applications, signal lines have developed from metal carriers to other carriers, such as optical cables. Signal lines for different purposes often have different industry standards to facilitate standardized production and application.

In the connection line composed of multiple signal lines, each signal line is connected to a terminal and connected to the circuit through the terminal set at the front end. In the production process, the connection line composed of multiple signal lines needs to be Tests are often performed by connecting terminals. For example, if a connecting line composed of two signal lines needs to be tested, two interfaces are provided on the test circuit to perform connection tests with the two terminals respectively. However, this detection method has the following problems: That is to say, when the order of the two signal lines is reversed, if the operator connects in reverse, the test can also pass, that is, assuming that the correct line sequence is A, B, and the corresponding interfaces are a, b, the correct connection method It is A and a, B and b. In the case of a wrong signal line sequence, the line sequence becomes B and A. If the operator reverses the connection, the line sequence becomes A and B again, and it is still A and a , the correct connection between B and b, resulting in the test result being OK, but the customer will insert the device according to the correct signal line sequence and use it, and find that the connection line is bad, so the customer complains to the manufacturer, which affects the reputation of the manufacturer, and this All because the detection method still has detection loopholes.

Utility model content

In order to solve the above problems, the utility model provides a connecting device with signal line sequence and anti-fooling. The position of the connecting line to be tested is limited by the shape of the groove, and the position of the connecting hole is not in the middle position, so that the position to be tested The connection line can only be connected to the socket when it is in the correct orientation, which avoids the detection loophole that can pass the test even when the sequence of the signal line itself is wrong, and realizes the fool-proof design of the line sequence of the signal line. The overall structure is simple and easy to detect. The results are highly reliable and easy to implement.

The purpose of this utility model can be realized in the following ways:

A connecting device with fool-proof signal lines, including a connecting device body, the connecting device body includes a side pressure device and a groove, the side pressure device is located above the side of the groove, and the groove The bottom of the groove is provided with a socket, and the socket corresponds to the terminals of the connecting wire to be tested one by one. The socket is connected with a thimble, and the thimble is arranged at the bottom of the connecting device body. The depth of the groove is It is consistent with the height of the plastic body of the connection line to be tested.

Further, the lateral pressure device includes a shell, an avoidance surface, an elastic body, a fixed strut and a pressure rod, the shell is connected with the elastic body and the fixed strut, and the pressure rod is connected with the elastic body and the fixed strut connected, the avoidance surface is set at the front end of the pressure rod, and is above the groove when the elastic body is not deformed.

Further, the socket is provided with two socket holes, and the socket holes are mated and connected with the terminals of the connecting wires to be tested, and are not in the center position.

Further, the number of sockets described above can be changed to one or more than three, which is consistent with the number of terminals described above.

The beneficial effects of the utility model are:

A connection device with fool-proof signal line sequence. The position of the connection line to be tested is limited by the shape of the groove. It will only be connected to the socket under certain circumstances, avoiding the detection loophole that can pass the test even when the sequence of the signal line itself is wrong, and realizing the fool-proof design of the signal line sequence, the overall structure is simple, the test result is highly reliable, and it is easy to implement , with other tests.

Description of drawings

Fig. 1 is a schematic structural view of the connecting device body involved in the present invention;

Fig. 2 is a schematic diagram of the body of the connection device involved in the present invention after the shell is removed;

Fig. 3 is a bottom schematic diagram of the connecting device body involved in the present invention;

Fig. 4 is the structural representation of the connection line to be tested that the utility model relates to;

Fig. 5 is a schematic diagram of the position of the connection line to be tested and the socket after it is correctly put into the groove involved in the utility model;

Fig. 6 is a schematic diagram of the position of the connecting wire to be tested involved in the utility model after being put into the groove by mistake;

Among them, the connection device body 1, the side pressure device 11, the groove 12, the shell 111, the avoiding surface 112, the elastic body 113, the fixed support rod 114, the pressure rod 115, the socket 121, the thimble 122, the connecting wire 2 to be tested, the terminal 21, plastic body 22, signal line 23.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1 to 6, a connection device with signal line sequence foolproof, including a connection device body 1, the connection device body 1 includes a side pressure device 11 and a groove 12, the side pressure device 11 is above the side of the groove 12, the bottom of the groove 12 is provided with a socket 121, the socket 121 corresponds to the terminal 21 of the connection line 2 to be tested one by one, and the socket 121 is connected with The thimble 122, the thimble 122 is arranged at the bottom of the connecting device body 1, and the depth of the groove 12 is consistent with the height of the plastic body 22 of the connecting wire 2 to be tested.

Further, the lateral pressure device 11 includes a housing 111, an avoidance surface 112, an elastic body 113, a fixed strut 114 and a pressing rod 115, the described housing 111 is connected with the elastic body 113 and the fixed strut 114, and the described The compression rod 115 is connected with the elastic body 113 and the fixed support rod 114, and the avoiding surface 112 is arranged at the front end of the compression rod 115, and is above the groove 12 when the elastic body 113 is not deformed.

Further, the socket 121 is provided with two socket holes, and the socket holes are connected with the terminal 21 of the connection line 2 to be tested, and are not in the middle position.

Further, the number of sockets described above can be changed to one or more than three, consistent with the number of terminals 21 described above.

As shown in Fig. 1-Fig. 6, a connection device with signal line sequence and foolproof, this embodiment is to test the connection line 2 to be tested with two signal lines 23, which needs to be connected from the thimble 122 at the bottom of the connection wire , connect the external circuit board and the button display device for testing; there are two terminals 21 on the connecting line 2 to be tested, so there are two sockets and two thimbles 122 in this embodiment, and the elastic body 113 adopts a spring at the same time. One end of the elastic body 113 is fixed on the shell 111, and one end is connected to the compression rod 115.

When testing is required, align the plastic body 22 of the connecting wire 2 to be tested and put it down against the groove 12. At this time, the terminal 21 of the connecting wire 2 to be tested is in contact with the socket, and the socket is connected to the thimble 122, and is connected through the wire at the bottom. To the external circuit board and key display device, so that the terminal 21 of the connection line 2 to be tested is kept connected with the external circuit board and key display device, so that the detection is controlled by the circuit board, and the test result is displayed on the key display device.

As shown in Figure 2, when the connecting wire 2 to be tested is not put down, the avoidance surface 112 is above the groove 12, and when the connecting wire 2 to be tested is lowered, it contacts the avoidance surface 112, and at this time the avoidance surface 112 is squeezed, and the pressing bar 115 moves clockwise with the fixed pole 114 as the fulcrum. At this time, the elastic body 113 is squeezed and deformed; Start to rebound, drive the pressing bar 115 to move counterclockwise with the fixed pole 114 as the fulcrum, and return to the initial position, and block the upper plane of the plastic body 22 of the connecting line 2 to be tested, so as to avoid the rebound of the connecting line 2 to be tested, so that Stay connected all the time.

As shown in Figures 5-6, in this embodiment, the terminal 21 of the connecting wire 2 to be tested is on the side, so the position of the socket 121 in the groove 12 is also on the side, when the connecting wire 2 to be tested is correctly placed After the groove 12, the terminal 21 corresponds to the position of the socket on the socket 121. After continuing to put it down, the terminal 21 enters the socket to form a connection; when the connecting wire 2 to be tested is put into the groove 12 by mistake, the terminal 21 and the socket hole 121 are not on the same side, the terminal 21 is not connected to the socket hole on the socket 121, and because the terminal 21 is against the bottom, the upper plastic body 22 protrudes, and the operator protrudes according to the plastic body 22. Judging by the phenomenon, it is reversed at this time; that is, it can only be connected and tested when it is placed correctly. If the correct line sequence is A, B, the corresponding jacks are a, b. In the case of the wrong line sequence of signal line 23 Next, if the line sequence changes to B and A, then B is connected to a, and A is connected to b, resulting in a test result of NG, thereby avoiding the detection loophole that the line sequence error can still pass the test.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in any way; any ordinary skilled person in the industry can smoothly implement it as shown in the accompanying drawings and the above description This utility model; however, all those who are familiar with the profession without departing from the scope of the technical solution of the utility model, and make use of the technical content disclosed above to make some changes, modifications and equivalent changes of evolution are all equivalent changes of the utility model. New equivalent embodiments; at the same time, all changes, modifications and evolutions of any equivalent changes made to the above embodiments according to the essential technology of the utility model still belong to the protection scope of the technical solution of the utility model.

Claims (4)

1. A connection device with fool-proof signal line sequence, including a connection device body (1), characterized in that: the connection device body (1) includes a side pressure device (11) and a groove (12), The side pressure device (11) is above the side of the groove (12), and the bottom of the groove (12) is provided with a socket (121), and the socket (121) is connected to the connection line to be tested. (2) The terminals (21) correspond one to one, the socket (121) is connected with a thimble (122), and the thimble (122) is arranged at the bottom of the connecting device body (1), and the groove (12) The depth is consistent with the height of the plastic body (22) of the connection line (2) to be tested. 2. A connection device with fool-proof signal line sequence according to claim 1, characterized in that: the side pressure device (11) includes a housing (111), an avoidance surface (112), an elastic body ( 113), fixed pole (114) and pressure rod (115), the shell (111) is connected with the elastic body (113) and the fixed pole (114), and the pressure rod (115) is connected with the elastic body ( 113) and the fixed support rod (114), the avoidance surface (112) is set at the front end of the pressure rod (115), and is above the groove (12) when the elastic body (113) is not deformed. 3. A connection device with fool-proof signal line sequence according to claim 1, characterized in that: the socket (121) is provided with two socket holes, the socket holes and The terminal (21) of the connecting wire (2) to be tested is connected in cooperation, and is not in the center position. 4. A connection device with signal line sequence foolproof according to claim 3, characterized in that: the number of said socket holes can be changed to one or more than three, and the said terminal (21) The quantity is consistent.