A connecting piece for a hand controller special connecting line

Abstract

The application provides a connecting piece of a special connecting line of a hand controller, which is connected with a screw terminal of a terminal. The connecting piece of the special connecting line of the hand controller comprises a magnetic component, a push rod device and a shell. The magnetic component comprises a magnet body and a first conductive piece arranged at one end of the magnet body, and the other end of the first conductive piece is provided with a conductive connector. The push rod device abuts against the magnetic component. The shell is used for containing the magnetic component and the push rod device, and one end of the shell is provided with a first opening, and the other end of the shell is provided with a second opening. The end of the push rod device away from the magnetic component extends out of the second opening of the shell, and when the extended part of the push rod device is pressed, the end of the magnetic component away from the push rod device can extend out of the first opening of the shell to contact a second conductive piece to realize electrical connection between the first conductive piece and the second conductive piece. The application realizes electrical connection by using the magnetism and conductivity of the magnet, and realizes test connection safely and conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of connectors, in particular to a connector for a connection line of a hand controller. BACKGROUND

[0002] The hand controller is mainly used in various measurement control occasions, such as maintenance and debugging, fault diagnosis, calibration, etc. The connection line of the hand controller such as TREX LFP KLWS 3, Hart 475 and Hart 375 is an important part of connecting the intelligent instrument and an important link to ensure communication. When connecting, the connector on the connection line usually adopts a clip or hook structure. When measuring, the cable line connected to the terminal needs to be peeled off a copper wire or a new copper wire is needed to be peeled off to be hooked by the hook or clamped by the clip, which is not only inconvenient to operate, but also has safety hazards. Therefore, a connection line and connector for directly connecting the hand controller and the control system without disassembling the cable line are needed. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a connector for a connection line of a hand controller to solve the problem that the cable line connected to the terminal needs to be peeled off a copper wire or a new copper wire is needed to be peeled off to be hooked by the hook or clamped by the clip when measuring, which is not only inconvenient to operate, but also has safety hazards.

[0004] To achieve the above-mentioned purpose and other related purposes, the present application provides a connector for a connection line of a hand controller, which is connected with a screw terminal of a terminal, and the connector for the connection line of the hand controller comprises:

[0005] a magnetic component, the magnetic component comprising a magnet body and a first conductive piece provided at one end of the magnet body, the other end of the first conductive piece being provided with a conductive connector;

[0006] a push rod device, the push rod device abutting against the magnetic component;

[0007] a shell, the shell being used for accommodating the magnetic component and the push rod device, one end of the shell being provided with a first opening, and the other end of the shell being provided with a second opening;

[0008] the other end of the push rod device away from the magnetic component extends out of the second opening of the shell, when the extended part of the push rod device is pressed, the other end of the magnetic component away from the push rod device can extend out of the first opening of the shell to contact a second conductive piece to realize electrical connection between the first conductive piece and the second conductive piece.

[0009] In one embodiment of the present application, the shell is provided with a wire packaging area for the wire and the conductive connector to extend out of the shell.

[0010] In one embodiment of the present application, the magnet body of the magnetic component is provided with a groove, and the end of the wire connected to the magnet body is located in the groove.

[0011] In one embodiment of the present application, the inside of the shell is provided with a wire groove corresponding to the position of the groove, and the wire groove and the wire packaging area are communicated.

[0012] In one embodiment of the present application, the magnet body is composed of a first part and a second part fixedly connected, the diameter of the second part is greater than that of the first part, the second part abuts against the push rod, and the first part is sleeved with a spring.

[0013] In one embodiment of the present application, the inside surface of the shell is fixedly provided with a limiting guide rail and a guide rail groove, the guide rail groove is located between the limiting guide rails, and the guide rail groove is provided with groove protrusions at intervals.

[0014] In one embodiment of the present application, the push rod is provided with a boss, the width of the boss can pass through the guide rail groove and slide in the guide rail groove.

[0015] In one embodiment of the present application, the push rod device comprises a push rod and a locking mechanism, the surface of the locking mechanism is fixedly provided with a protrusion, the bottom of the push rod is provided with a toothed structure, the top of the protrusion is engaged with the toothed structure of the bottom of the push rod, and one end of the locking mechanism extends into the inside of the push rod.

[0016] After the push rod is pressed, the push rod abuts against the locking mechanism to pass through the highest critical point of the limiting guide rail, and is clamped at the top end of the guide rail groove between the limiting guide rails.

[0017] After the push rod is pressed again, the locking structure passes through the highest critical point of the limiting guide rail again, and the locking structure returns to the original position in the opposite direction of the pressing under the pressure of the spring.

[0018] In one embodiment of the present application, the outside of the shell is provided with a layer of plastic soft shell, the corresponding position of the outlet of the magnetic component is provided with a third opening and a fourth opening, the third opening is used for extending the magnetic component, and the fourth opening is used for extending the push rod.

[0019] In one embodiment of the present application, the first conductive part is a wire, and the second conductive part is a terminal.

[0020] The connecting piece of the connecting line for the hand controller has the following advantages: the screw terminal of the screw type connecting terminal is attracted by the magnet, the electric connection between the connecting line and the cable is realized by the electric conductivity of the magnet, the hook and the clamp of the original connecting line are replaced, and the test connection is safely and conveniently completed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The drawing shows the schematic cross-sectional view of the exemplary internal structure of the connecting piece of the connecting line for the hand controller.

[0022] Figure 2 The drawing shows the front view of the locking mechanism of the connecting piece of the connecting line for the hand controller.

[0023] Figure 3 The drawing shows the B view of the locking mechanism of the connecting piece of the connecting line for the hand controller. Figure 1

[0024] Figure 4 The drawing shows the A view of the push rod of the connecting piece of the connecting line for the hand controller. Figure 1

[0025] Figure 5 The drawing shows the schematic view of the limiting guide rail structure of the connecting piece of the connecting line for the hand controller.

[0026] Figure 6 The drawing shows the schematic view of the connecting piece of the connecting line for the hand controller containing the plastic soft shell.

[0027] Figure 7 The drawing shows the A view of the third opening end of the connecting piece of the connecting line for the hand controller. Figure 6

[0028] ELEMENT NUMBER EXPLANATION

[0029] Housing 1; limiting guide rail 11; guide rail recess 12; recess protrusion 121; wire groove 13, wire packaging area 14; first opening 15; second opening 16; spring 2; magnet 3; first part 31; second part 32; recess 33; locking mechanism 4; protrusion 41; push rod 5; protrusion 51; tooth structure 52; wire 6; electrically conductive connector 61; plastic soft shell 7; third opening 71. DETAILED DESCRIPTION

[0030] ​​​The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementation schemes and not for limiting the scope of protection of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0031] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0032] This invention provides a connector for a handheld device's dedicated connecting cable, which mates with a screw terminal of a wiring terminal. The connector includes a magnetic component, a push rod device, and a housing 1. The magnetic component includes a magnet 3 body and a first conductive element (wire 6) with one end disposed on the magnet 3 body; the other end of the wire 6 has a conductive connector 61. One end of the push rod device abuts against one end of the magnetic component. One end of the housing 1 has a first opening 15, and the other end has a second opening 16. The second opening 16 allows the end of the push rod device away from the magnetic component to extend partially. When the push rod device extending from the housing 1 is pressed, the end of the magnetic component away from the push rod device can extend from the first opening 15 of the housing to achieve electrical connection with the second conductive element (screw terminal). The conductive connector 61 of the wire 6 can extend out of the housing 1 through a channel within the housing 1 to connect to the instrument end.

[0033] The outer diameter of the connector housing 1 matches the inner diameter of the screw terminal hole. In use, pressing the push rod device allows the magnetic component of the connector to extend into the screw terminal hole of the wiring terminal. The magnetism of the magnetic component effectively holds the screw in the screw terminal hole, replacing the original hook and clip of the connecting wire.

[0034] Specifically, as a preferred embodiment, please refer to Figure 1 The connecting piece of the connecting line for the hand controller includes a magnet 3, a locking structure 4, a push rod 5 and a shell 1. The shell 1 can be a plastic shell, the inner wall of which is provided with limiting guide rails 11, and the limiting guide rails 11 are provided with guide rail inter-slot 12 (see Figure 5 ), the shell 1 is provided with a first opening 15 and a second opening 16 at two ends, the first opening 15 is used for the first part 31 of the magnet 3 to extend out of the shell 1, and the second opening 16 is used for the push rod 5 to extend out of the shell 1. The magnet 3 can be a neodymium iron boron magnet, an iron cobalt nickel magnet, etc., the magnet 3 is integrally installed in the shell 1, the magnet 3 is divided into two parts which are fixedly connected, the first part 31 is provided with a spring 2, the diameter of the spring 2 is greater than that of the first opening 15 of the shell 1 and less than that of the second part 32 of the magnet. The second part 32 of the magnet away from the first part 31 abuts against the locking mechanism 4. The locking mechanism 4 is provided with a convex strip 41, the end of the convex strip 41 close to the push rod 5 is a tooth shape with an inclined surface. The end of the push rod 5 close to the locking mechanism 4 is provided with a tooth structure 52, the shape of which is engaged with the end of the convex strip 41. The end of the locking mechanism 4 movably sleeves in the push rod 5, when the push rod 5 outside the shell 1 is pressed, the push rod 5 drives the locking mechanism 4 to move together. The push rod 5 is provided with a convex block 51, the number and position of the convex block 51 are matched with the guide rail inter-slot 12 on the inner wall of the shell 1, so that the convex block 51 can slide in the guide rail inter-slot 12, which limits the push rod 5, guarantees the balance and stability of the push rod 5, and prevents the push rod 5 from shaking randomly in the shell 1. The second part 32 of the magnet 3 is provided with a wire 6, a part of the wire 6 is encapsulated in the shell 1 of the connecting piece, and the other end is connected with a wire connector 61. The wire connector 61 can also be made in a plastic-coated form. A groove 33 is formed on the second part 32, one end of the wire 6 is fixedly connected with the surface of the magnet 3 in the groove 33, and the connection mode can be cold pressure welding, adhesion or mechanical and electrical connection. The wire 6 is arranged in the groove 33 to protect the wire 6. The inner surface of the shell 1 is provided with a wire groove 13 corresponding to the position of the groove 33, the wire 6 has a certain margin in the wire groove 13. The inner wall of the shell 1 is further provided with a wire encapsulation area 14 communicating with the groove 13, the wire encapsulation area 14 is a channel for the wire 6 to extend out of the shell 1, so as to avoid the wire 6 connected to the magnet 3 from being damaged by pulling during pressing and moving. The wire 6 extending out of the shell 1 is fixedly connected with a conductive connector 61, and the conductive connector 61 is used for connecting external instruments to perform test work.

[0035] The magnet 3 inside the housing 1, in conjunction with the spring 2, push rod 5, locking mechanism 4, and limiting guide rail 11, enables the extension and retraction of the magnet 3. Pressing the push rod 5 causes the magnet 3 and locking structure 4 to move along the direction of the push rod 5. The toothed structure 52 on the push rod 5 engages with the end of the protrusion 41 on the locking structure 4. The toothed structure 52 generates a pushing force on the toothed inclined surface at the end of the protrusion 41. This pushing force can be decomposed into a downward pushing force and a force that causes the locking structure 4 to rotate, causing the locking structure 4 to rotate. The push rod 5 continues to press down, causing the magnet 3 to extend out of the housing 1. When the push rod 5 presses against the locking mechanism 4 past the highest critical point of the limiting guide rail 11, the locking mechanism 4 is locked at the top of the groove protrusion 121 in the groove between the guide rails 12, and the magnet 3 extends out of the housing 1. The protrusion 51 on the push rod 5 slides along the groove between the guide rails 12, ensuring the balance and stability of the push rod 5. When testing external instruments is required, the exposed magnet 3 and a portion of the front end of the housing 1 can be directly inserted into the mounting hole of the screw terminal, with the magnet 3 in close contact with the screw of the screw terminal. After the test is completed, the push rod 5 is pressed again. Once the locking structure 4 passes the highest critical point of the limit guide rail 11 again, the magnet 3 and the locking structure 4 return to their original positions in the opposite direction of the press under the pressure of the spring 2. The inner surface of the housing 1 has a wire groove 13, and the wire 6 in the wire groove 13 has a certain margin to prevent the wire end connected to the magnet from being pulled and damaged during the pressing and moving process.

[0036] Figure 2 and Figure 3 These are front views of the locking mechanism 4 and... Figure 1 In the schematic diagram of direction B, a protrusion 41 is fixedly provided on the surface of the locking mechanism 4. The top of the protrusion 41 is toothed with a slope. One end of the locking mechanism 4 abuts against the magnet 3, and the other end has a cylindrical protrusion that can extend into the push rod 5.

[0037] Figure 4 It's putter 5 at Figure 1 In the schematic diagram of direction A, the push rod 5 is a hollow structure, with one end of the locking mechanism 4 extending into it, and a protrusion 51 is provided on the outside. The protrusion 51 can slide in the guide rail groove 12 between the upper limit guide rails 11 on the inner wall of the housing 1.

[0038] Figure 5The internal structure of the shell 1 is shown. Two ends are respectively provided with openings, the first opening 15 is used to extend the magnet 3, and the second opening 16 is used to extend the push rod 5, and the wire 6 can be extended from either end. The inner wall of the shell 1 is provided with a limiting guide rail 11 corresponding to the position of the push rod 5, and the limiting guide rails 11 adjacent to each other form a guide rail inter-slot 12. The number and shape of the guide rail inter-slot 12 correspond to the number and shape of the protrusions on the push rod 5. Preferably, recessed protrusions 121 are arranged in the guide rail inter-slot 12 at intervals. When the push rod 5 is pressed against the locking mechanism 4 and passes through the highest critical point of the limiting guide rail 11, the locking mechanism 4 is clamped on the top end of the recessed protrusion 121 in the guide rail inter-slot 12. When the push rod 5 is pressed again, the magnet 3 and the locking mechanism 4 return to the original position without the recessed protrusion 121 under the pressure of the spring 2 in the opposite direction of the pressing. Preferably, in order to protect the wire 6 and facilitate the extension of the wire 6 out of the shell 1, a wire groove 13 can be arranged on the inner wall of the shell corresponding to the position where the wire is installed, and a wire packaging area 14 is opened. The wire packaging area 14 is a channel, one end of which communicates with the wire groove 13 for the wire 6 to pass through, and the other end communicates with the outside of the shell to enable the wire 6 to extend out of the shell 1.

[0039] Figure 6 Another preferred embodiment of the present application is shown, a plastic soft shell 7 can also be provided outside the shell 1, the plastic soft shell 7 has a third opening 71 (see Figure 7 ) and a fourth opening. The position and size of the third opening 71 correspond to the first opening 15, and the position and size of the fourth opening correspond to the second opening 16. The third opening 71 has a cross-shaped opening for the magnet 3 to extend out of it. When the connector is not in use, the magnet 3 is located inside the shell 1, and the third opening 71 can form a closed state to avoid the connector being contaminated by the outside and improve its service life. The other end of the plastic soft shell 7 also has an opening corresponding to the second opening 16. The outer diameter of the plastic soft shell 7 matches the inner diameter of the screw terminal hole, so that the connector can be used stably, and preferably, the connector plastic soft shell 7 can be made of a material with elasticity, so that the connector can be inserted into the screw terminal hole, and the connector can be prevented from being contaminated by the outside.

[0040] In use, the magnet 3 is pushed out of the shell 1 of the connector by the push rod 5, and then a part of the exposed magnet and the front end of the shell 1 is inserted into the screw terminal hole, the magnet is magnetically attracted to the screw in the screw terminal hole, and the screw and the cable wire are stably connected to establish instrument communication connection, so that normal operation can be performed. After use, the push rod 5 is pushed again, and the magnet 3 is retracted into the connector shell 1 by the elasticity of the spring 2, without the need to reprocess the cable wire, so that the next measurement can be directly started.

[0041] In order to verify the reliability of the connector of the present application, a number of experiments were conducted:

[0042] Experiment 1, magnetic attraction experiment, taking N35 cylindrical neodymium iron boron magnet with specifications of 3mm*15mm as an example, the formula for calculating the magnetic attraction of the magnet is: volume of the magnet*density*600(multiple). The density of N35 magnet is about 7.5g / cm3, the weight of the magnet is volume*density(π*1.5mm square*15mm)*0.0075=0.7948g. The magnetic attraction of the magnet is obtained: 0.7948*600=476.88g. Therefore, a cylindrical magnet with specifications of 3mm*15mm can attract an object with a weight of about 0.476kg. Usually, the terminal is provided with a screw terminal interface and a cable terminal port, and the screw terminal interface and the cable terminal port are connected internally by an iron component. In this experiment, three ￠3*5 neodymium iron boron magnets are used for radial adsorption connection, instead of the magnets in the connecting piece, to test the magnetic attraction. The experimental result is that three ￠3*5 neodymium iron boron magnets connected radially can easily attract a 150mm vernier caliper. The result of the magnetic attraction experiment shows that the magnets provided in the connecting piece of the application can well attract the screw (iron) inside the terminal hole.

[0043] Experiment 2, conductivity test, still using three ￠3*5 neodymium iron boron magnets connected radially instead of the magnets in the connecting piece to test the conductivity. The resistance value between the magnet and the screw terminal is measured multiple times with a multimeter. After the magnet and the screw terminal are attracted, the resistance from the magnet to the screw terminal is tested with a multimeter. The experimental result is 0.4 ohm. The resistance of the three radially connected magnets is measured separately, and the result is 0.3 ohm. The resistance of a single magnet is measured separately, and the result is 0.2 ohm. The experimental result proves that the resistance value is close to 0 ohm, fully meeting the conductivity requirement.

[0044] Experiment 3, using a TREX hand manipulator, three ￠3*5 magnets connected radially form a group, and there are two groups in total. The two groups of magnets are respectively attracted to two terminals. The two communication ends of the hand manipulator are respectively connected to the two groups of magnets, data is read, and effect test experiment is performed. Specifically, the magnet is directly used, the TREX hand manipulator communicates with the field instrument, and information is read on the TREX hand manipulator. The communication information displayed by the magnet as the connecting piece and the communication information displayed by the ordinary clip as the connecting piece are as shown in the following table:

[0045] Table 1 TREX hand manipulator communication data of different connecting pieces

[0046]

[0047] From the data tested in Table 1, the communication data of the ordinary clip as the connecting piece is consistent with the communication data of the magnet as the connecting piece, indicating that the communication is successful. Therefore, the test result of the connecting piece of the application is consistent with the test result of the existing connecting piece (clip or hook of the prior art), and the connecting piece of the application can replace the connecting piece of the prior art.

[0048] In actual test, the connecting piece of the special connecting line of the hand controller is connected with the cable line of the external device (supporting Hart protocol) firstly, and then fixed by screw, and the conductive connector 61 is connected with one end of the instrument connecting line. Two connecting pieces of the present application are needed in use, because one signal needs to be connected with two screw terminals and two conductive connectors 61. Then, the magnet end of the connecting piece of the present application is put into the screw terminal interface, and the push rod 5 is pressed to make the magnet 3 extend to form good contact, and then the daily work of maintenance, debugging, fault diagnosis and calibration can be started.

[0049] In summary, the connecting piece of the special connecting line of the hand controller utilizes the magnetic force and conductive characteristics of the magnet, so that the magnet is adsorbed on the screw terminal and connected with the cable line, which avoids disassembling or peeling the cable line skin, is safe and effective, and is more convenient to operate. Therefore, the present application effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0050] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A connector for a hand controller dedicated connection cord, said connector being connected to a screw terminal of a terminal block, characterized in that, The connecting piece of the hand controller special connecting line comprises: a magnetic component, which comprises a magnet body and a first conductive piece arranged at one end of the magnet body, and the other end of the first conductive piece is provided with a conductive connector; a push rod device, which abuts against the magnetic component; a shell, which is used for accommodating the magnetic component and the push rod device, and is provided with a first opening at one end and a second opening at the other end; the end of the push rod device away from the magnetic component extends out of the second opening of the shell, and when the extended part of the push rod device is pressed, the end of the magnetic component away from the push rod device can extend out of the first opening of the shell to contact a second conductive piece to realize electrical connection between the first conductive piece and the second conductive piece; the magnet body is composed of a first part and a second part fixedly connected, the diameter of the second part is greater than that of the first part, the second part abuts against the push rod device, and the first part is provided with a spring; a limiting guide rail and a guide rail recess are fixedly arranged on the inner surface of the shell, the guide rail recess is located between the limiting guide rails, and recess protrusions are arranged in the guide rail recess at intervals; the push rod device comprises a push rod and a locking mechanism, the surface of the locking mechanism is fixedly provided with a protruding strip, the bottom of the push rod is provided with a toothed structure, the top of the protruding strip is engaged with the toothed structure at the bottom of the push rod, and one end of the locking mechanism extends into the inside of the push rod; after the push rod is pressed, the push rod abuts against the locking mechanism to pass through the highest critical point of the limiting guide rail, and is clamped at the top end of the guide rail recess between the limiting guide rails; after the push rod is pressed again, the locking mechanism passes through the highest critical point of the limiting guide rail again, and the locking mechanism returns to the original position in the opposite direction of the pressing under the pressure of the spring.

2. The hand manipulator dedicated connection cord coupler of claim 1, wherein: a wire packaging area is arranged on the shell for the wires and the conductive connector to extend out of the shell.

3. The hand manipulator dedicated connection cord coupler of claim 2, wherein: a recess is arranged on the magnet body of the magnetic component, and one end of the wire connected with the magnet body is located in the recess.

4. The hand manipulator dedicated connection cord coupler of claim 3, wherein: a wire groove is arranged in the inside of the shell corresponding to the position of the recess, and the wire groove is communicated with the wire packaging area.

5. The connector of the hand manipulator dedicated connection cord according to claim 1, characterized by: a boss is arranged on the push rod, the width of the boss can pass through the guide rail recess and slide in the guide rail recess.

6. The hand manipulator dedicated connection cord coupler of claim 1, wherein: a layer of plastic soft shell is arranged on the outside of the shell, third and fourth openings are arranged at the corresponding positions of the outlet of the magnetic component, the third opening is used for extending the magnetic component, and the fourth opening is used for extending the push rod.

7. The hand manipulator dedicated connection cord coupler of claim 1, wherein: the first conductive piece is a wire, and the second conductive piece is a terminal.

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