Heavy-load connector for connecting electric actuating mechanism

Abstract

The utility model discloses a heavy-load connector used for connecting an electric actuating mechanism, and particularly relates to the technical field of connectors, the heavy-load connector comprises a male plugging joint and a female plugging joint, a remote control cable and a power supply cable respectively penetrate into a male joint shell through male threading holes arranged on the male joint shell and are fixedly connected with a wiring terminal of a male insertion core; the fixing piece penetrates through the female joint shell fixing hole to fixedly connect the female joint shell with the electric actuating mechanism body, so that the female threading hole is collinear with the axis of a threading hole of the electric actuating mechanism; and an internal control cable and a power supply cable of the electric actuating mechanism respectively penetrate into the female joint shell through two female threading holes of the female joint shell and are fixedly connected with a wiring terminal of the female insertion core. According to the utility model, pre-installation and pre-wiring can be realized, the equipment installation efficiency is improved, the wiring error rate is reduced, and the equipment failure rate in the maintenance process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a heavy-duty connector for connecting an electric actuator. Background Art

[0002] At present, for the electric actuators used in thermal power plants or other sites, when cooperating with valve maintenance, it is necessary to remove the electric actuator. However, due to the inconsistent installation heights of the electric actuators installed on site, when removing the electric actuator, it is necessary to remove the power cable and control cable. After the valve maintenance is completed, the electric actuator and the mechanical part of the valve are reconnected, and the power cable and control cable of the electric actuator are restored. Only then can the valve electric device be powered on for debugging, the valve position be reset, and the control of the flow and cut-off of the pipeline fluid or medium be realized.

[0003] However, frequently disconnecting and reconnecting the cables through the terminal blocks can easily cause the following problems: 1. It is easy to damage the terminal blocks, resulting in the dropping of fastening bolts or damage to the threads, making it impossible to connect the wires, and the terminal blocks need to be replaced; 2. It is easy to cause poor contact or damage to the insulation between the terminals, and cable short circuits can cause incorrect remote signals or misoperation of the electric actuator; 3. Although marks are made on the terminal blocks of the electric actuator during wire disconnection and connection, the marks may be lost during the process of the cable being pulled out of the wire passing hole of the electric actuator or during the removal of the insulation protection of the cable head before restoration, resulting in wiring errors, incorrect relevant signals, or the inability to send the status signal feedback to the DCS remote display, affecting the operator's judgment and operation of the valve position. Therefore, it is only possible to re-check the cable usage and verify the cables one by one from the side of the terminal blocks of the electric actuator and the DCS, increasing the workload; 4. During the maintenance of thermal power plant units, when cooperating with the maintenance of steam-water system valves, for example, during the maintenance of a 350MW unit, about 100 valves need to be disassembled and assembled. In fact, there is no maintenance work on the electric actuator itself. It is only for the convenience of valve maintenance and to cooperate with the disconnection and connection of the cables. Therefore, removing all the cables requires a large amount of manpower and time to cooperate with the maintenance work.

[0004] Chinese Patent No. CN202220583707.X discloses a heavy-duty connector, specifically discloses that through holes are provided on the first installation shell, so that it is convenient for the cable to pass through the through holes and then be connected to the male plug, facilitating the installation of the cable. However, the interfaces or connection methods of the above-mentioned heavy-duty connectors cannot be directly combined with the cable quantity, wire passing hole diameter, protection level, installation position, etc. of various electric actuators in operation, and cannot optimize the cable transfer method. Summary of the Utility Model

[0005] The purpose of this utility model is to provide a heavy-duty connector for connecting an electric actuator to solve the problems of the above-mentioned prior art. It can be pre-installed and pre-wired, improve the efficiency of equipment installation, reduce the wiring error rate, and reduce the equipment failure rate during inspection and maintenance.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a heavy-duty connector for connecting an electric actuator, comprising a male plug connector and a female plug connector, the male plug connector comprising a male connector housing and a male plug core fixedly arranged at one end of the male connector housing, the end face of the male connector housing away from the male plug core is provided with two male threading holes, the remote control cable and the power cable are respectively inserted into the male connector housing through the two male threading holes and are fixedly connected to the wiring terminals of the male plug core; the female plug connector comprises a female connector housing and a female plug core fixedly arranged at one end of the female connector housing, the end face of the female connector housing away from the female plug core is provided with two female threading holes and two fixing holes, the fixing piece passes through the fixing holes to fix the female connector housing to the electric actuator body, thereby making the female threading hole and the axis of the threading hole of the electric actuator itself colinear, the internal control cable and the power cable of the electric actuator are respectively inserted into the female connector housing through the two female threading holes and are fixedly connected to the wiring terminals of the female plug core.

[0008] Preferably, two locking devices are movably provided on the female connector housing, and the two locking devices are respectively provided at the two ends of the female connector housing, and the two locking devices are used to lock the female connector housing to the male connector housing.

[0009] Preferably, the locking device includes a locking buckle, the locking buckle is provided with a card interface, the male connector housing is provided with a locking column matching the card interface, the locking buckle is rotated in a direction close to the female connector housing, so that the card interface cooperates with the locking column to achieve locking and fixing of the female connector housing and the male connector housing.

[0010] Preferably, the locking device further comprises a toggle plate, and the toggle plate is fixedly connected to the locking buckle.

[0011] Preferably, the female connector housing comprises a first female housing and a second female housing, the first female housing and the second female housing are detachably connected, the female ferrule is fixedly arranged on the first female housing, the two locking buckles are movably arranged on both sides of the first female housing, and the end surface of the second female housing away from the first female housing is provided with two female threading holes and two fixing holes.

[0012] Preferably, a sealing ring is provided between the first female housing and the second female housing.

[0013] Preferably, the male plug core has a groove, and the pin is located in the groove. A plurality of protruding clamping grooves are provided on the circumferential side wall of the groove. The female plug core has a boss, and the jack is located in the boss. A plurality of protruding clamping blocks corresponding to the clamping grooves are provided on the circumferential side wall of the boss. The male plug core is fixedly connected to the female plug core through the clamping of the clamping blocks and the clamping grooves, and the pin is inserted into the jack.

[0014] Preferably, the diameter of the male wire passing hole is 22 mm, and the diameter of the female wire passing hole is 32 mm.

[0015] The utility model has achieved the following technical effects compared with the prior art:

[0016] The utility model provides a heavy-duty connector for connecting an electric actuator. The remote control cable and the power cable are respectively inserted into the male connector housing through two male wire passing holes and fixedly connected to the wiring terminals of the male plug core. The internal control cable and the power cable of the electric actuator are respectively inserted into the female connector housing through two female wire passing holes and fixedly connected to the wiring terminals of the female plug core. Compared with the traditional connection method of disconnecting and connecting cables through wiring terminals, using the heavy-duty connector to transform the connection of the power cable and the control cable of the electric actuator has the advantages of pre-installation, pre-wiring, and prevention of misinsertion, etc., which can reduce the wiring error rate and improve the equipment installation efficiency; when the electric actuator cooperates with the valve for maintenance, there is no need to disconnect the terminal wiring of the electric actuator during disassembly and assembly. Just separate the male and female plug connectors to complete the cable disconnection, which reduces the labor intensity and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a heavy-duty connector for connecting an electric actuator;

[0019] Figure 2 It is a schematic structural diagram of the male connector housing;

[0020] Figure 3 It is a front view of the male connector housing;

[0021] Figure 4 It is a side view of the male connector housing;

[0022] Figure 5 is the bottom view of the male connector housing;

[0023] Figure 6 is a schematic diagram of the structure of the female connector housing;

[0024] Figure 7 is the front view of the female connector housing;

[0025] Figure 8 is the side view of the female connector housing;

[0026] Figure 9 is the bottom view of the female connector housing;

[0027] Figure 10 is the top view of the female connector housing;

[0028] Figure 11 is a schematic diagram of the structure of the male plug;

[0029] Figure 12 is the front view of the male insert;

[0030] Figure 13 is the side view of the male insert;

[0031] Figure 14 Top view of the male insert;

[0032] Figure 15 is a schematic diagram of the structure of the female ferrule;

[0033] Figure 16 is the front view of the female ferrule;

[0034] Figure 17 is the side view of the female ferrule;

[0035] Figure 18 Top view of the female ferrule;

[0036] Figure 19 is a schematic diagram of the structure of the locking device;

[0037] Figure 20 is a side view of the locking device.

[0038] In the figure: 1-male plug-in connector; 2-female plug-in connector; 3-male connector housing; 4-male plug core; 5-female connector housing; 6-female plug core; 7-male threading hole; 8-female threading hole; 9-fixing hole; 10-locking buckle; 11-card interface; 12-locking column; 13-sliding plate; 14-first female housing; 15-second female housing; 16-groove; 17-card slot; 18-boss; 19-card block; 20-pin; 21-jack. Specific implementation method

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] The object of the present invention is to provide a heavy-duty connector for connecting an electric actuator to solve the problems existing in the above-mentioned prior art, which can be pre-installed and pre-wired, improve the equipment installation efficiency, reduce the wiring error rate, and reduce the equipment failure rate during the inspection, repair and maintenance process.

[0041] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] The present invention provides a heavy-duty connector for connecting an electric actuator, as Figures 1 - 10 shown, which includes a male plug-in joint 1 and a female plug-in joint 2. The male plug-in joint 1 includes a male joint housing 3 and a male plug core 4 fixedly arranged at one end of the male joint housing 3. Two male wire passing holes 7 are opened on the end face of the male joint housing 3 far away from the male plug core 4. The remote control cable and the power cable are respectively inserted into the male joint housing 3 through the two male wire passing holes 7 and fixedly connected to the wiring terminals of the male plug core 4; the female plug-in joint 2 includes a female joint housing 5 and a female plug core 6 fixedly arranged at one end of the female joint housing 5. Two female wire passing holes 8 and two fixing holes 9 are opened on the end face of the female joint housing 5 far away from the female plug core 6. The fixing member passes through the fixing holes 9 to fixedly connect the female joint housing 5 to the electric actuator body, so that the axes of the two female wire passing holes 8 and the wire passing holes of the electric actuator itself are collinear, facilitating the internal control cable and the power cable of the electric actuator to be respectively inserted into the female joint housing 5 through the two female wire passing holes 8 and fixedly connected to the wiring terminals of the female plug core 6. Compared with the traditional connection method of disconnecting and reconnecting cables through wiring terminals, using a heavy-duty connector to transform the connection of the power cable and the control cable of the electric actuator has the advantages of pre-installation and pre-wiring, etc., and can prevent the damage of the electric actuator caused by incorrect cable connection or the incorrect position of the status signal or the inability to operate the valve caused by incorrect command wiring. It can reduce the wiring error rate and improve the equipment installation efficiency; when the electric actuator cooperates with the valve for maintenance, there is no need to disconnect the terminal wiring of the electric actuator during disassembly and assembly. Just separate the male plug-in joint 1 and the female plug-in joint 2 to complete the cable disconnection. The disassembly and assembly time of a single electric actuator changes from 30 minutes for 2 people to 2 minutes for 1 person, reducing the labor intensity and improving the work efficiency.

[0043] In a further preferred embodiment of the present utility model, as shown in the figure, two locking devices are movably arranged on the female connector housing 5, and the two locking devices are respectively arranged at both ends of the female connector housing 5. The two locking devices are used to lock the female connector housing 5 to the male connector housing 3 to prevent the male and female plug connectors 1 and 2 from loosening and falling off.

[0044] In a further preferred embodiment of the present utility model, as Figures 19 - 20 shown, the locking device includes a locking buckle 10, and a card interface 11 is opened on the locking buckle 10. As Figure 3 shown, a locking column 12 matching the card interface 11 is arranged on the male connector housing 3. The locking buckle 10 rotates towards the direction close to the female connector housing 5, so that the card interface 11 cooperates with the locking column 12 to realize the locking and fixing of the female connector housing 5 and the male connector housing 3. The card interface 11 is clamped on the locking column 12 to prevent the female connector housing 5 and the male connector housing 3 from separating from each other and strengthen the stability of the locking.

[0045] In a further preferred embodiment of the present utility model, the locking device further includes a toggle plate 13, and the toggle plate 13 is fixedly connected to the locking buckle 10. Thus, when rotating the locking buckle 10, the operator can move the toggle plate 13 to drive the locking buckle 10 to rotate, which is convenient for operation.

[0046] In a further preferred embodiment of the present utility model, the female connector housing 5 includes a first female housing 14 and a second female housing 15. The first female housing 14 and the second female housing 15 are detachably connected. The female insert core 6 is fixedly arranged in the first female housing 14, and the two locking buckles 10 are movably arranged on both sides of the first female housing 14. Two female wire holes 8 and two fixing holes 9 are opened on the end face of the second female housing 15 far from the first female housing 14. It is convenient to fixedly connect the female connector housing 5 to the electric actuator body.

[0047] In a further preferred embodiment of the present utility model, a sealing ring is arranged between the first female housing 14 and the second female housing 15. It can enhance the sealing performance of the female connector housing 5.

[0048] In a further preferred embodiment of the present utility model, as Figures 11 - 18 shown, the male insert core 4 has a groove 16, the insert pin 20 is located in the groove 16, a plurality of protruding card slots 17 are arranged on the circumferential side wall of the groove 16, the female insert core 6 has a boss 18, the jack 21 is located in the boss 18, and a plurality of protruding blocks 19 corresponding to the card slots 17 are arranged on the circumferential side wall of the boss 18. Through the clamping of the blocks 19 and the card slots 17, the male insert core 4 and the female insert core 6 are fixedly connected and the insert pin 20 is inserted into the jack 21. As Figure 11 and Figure 15As shown in the figure, one side of the groove 16 of the male insert core 4 is provided with three card slots 17, and the other side is provided with two card slots 17. One side of the boss 18 of the female insert core 6 is provided with three locking blocks 19, and the other side is provided with two locking blocks 19. When the male insert core 4 is connected to the female insert core 6, if the direction is incorrect or inserted reversely, it will not be able to be inserted and connected. Such a setting can prevent the reverse insertion of the direction and improve the accuracy of the insertion connection. Preferably in the present utility model is the HE-024-M heavy-duty connector insert core group, with 24 pins, including two parts: the male insert core 4 and the female insert core 6, with a rated cable of 16A and a rated voltage of 500V, and a grounding wire terminal is provided. The wiring terminals of the female insert core 6 and the male insert core 4 are both marked with numbers.

[0049] In a further preferred embodiment of the present utility model, the diameter of the male wire passing hole 7 is 22 mm, and the diameter of the female wire passing hole 8 is 32 mm.

[0050] The installation steps of a heavy-duty connector for connecting an electric actuator provided by the present utility model are as follows:

[0051] First, disassemble the first female housing 14 and the second female housing 15. Pass bolts through the fixing holes 9 opened on the second female housing 15 to fix the second female housing 15 on the electric actuator body, and ensure that the axis of the female wire passing hole 8 opened on the second female housing 15 is collinear with the original wire passing hole of the electric actuator, so as to facilitate the control cable and power cable of the electric actuator to pass through the female wire passing hole 8 on the second female housing 15 and penetrate into the second female housing 15. Leave some allowance for the cable, then remove the female insert core 6 fixed on the first female housing 14, connect the electric actuator cable to the corresponding numbered terminal of the female insert core 6. After wiring is completed, fix the female insert core 6 back on the first female housing 14, and then connect the first female housing 14 and the second female housing 15;

[0052] Then, remove the male insert core 4 fixed on the male connector housing 3, and then pass the remote control signal cable and power cable through the male wire passing hole 7 opened on the male connector housing 3 and penetrate into the male connector housing 3. Fasten the control signal cable and power cable to the male insert core 4 with bolts, and then fix the male insert core 4 on the male connector housing 3 with bolts;

[0053] Finally, insert the male insert core 4 fixed on the male connector housing 3 into the female insert core 6 fixed on the female connector housing 5, and use the locking device fixed on the female connector housing 5 to fixedly connect the female connector housing 5 and the male connector housing 3 to prevent loosening and falling off.

[0054] The heavy-duty connector for connecting an electric actuator has a simple structure, is convenient for modification, easy to install and maintain, and can greatly reduce the maintenance amount.

[0055] In this utility model, specific examples are used to expound the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the utility model.

Claims

1. A heavy-duty connector for connecting an electric actuator, characterized in that: It comprises a male plug-in connector and a female plug-in connector, wherein the male plug-in connector comprises a male connector shell and a male plug core fixedly arranged at one end of the male connector shell, and the end face of the male connector shell away from the male plug core is provided with two male threading holes, and the remote control cable and the power supply cable are respectively inserted into the male connector shell through the two male threading holes and fixedly connected with the wiring terminals of the male plug core; the female plug-in connector comprises a female connector shell and a female plug core fixedly arranged at one end of the female connector shell, and the end face of the female connector shell away from the female plug core is provided with two female threading holes and two fixing holes, and the fixing part passes through the fixing holes to fix the female connector shell to the electric actuator body, thereby making the female threading hole and the axis of the threading hole of the electric actuator itself colinear, and the internal control cable and the power supply cable of the electric actuator are respectively inserted into the female connector shell through the two female threading holes and fixedly connected with the wiring terminals of the female plug core.

2. The heavy-duty connector for connecting an electric actuator according to claim 1, characterized in that: Two locking devices are movably arranged on the female connector shell, and the two locking devices are respectively arranged at two ends of the female connector shell, and the two locking devices are used to lock the female connector shell on the male connector shell.

3. The heavy-duty connector for connecting an electric actuator according to claim 2, characterized in that: The locking device includes a locking buckle, which is provided with a card interface. The male connector shell is provided with a locking column matching the card interface. The locking buckle is rotated in a direction close to the female connector shell so that the card interface cooperates with the locking column to achieve locking and fixation of the female connector shell and the male connector shell.

4. The heavy-duty connector for connecting an electric actuator according to claim 3, characterized in that: The locking device also includes a toggle plate, and the toggle plate is fixedly connected to the locking buckle.

5. The heavy-duty connector for connecting an electric actuator according to claim 3, characterized in that: The female connector shell includes a first female shell and a second female shell, the first female shell and the second female shell are detachably connected, the female insert is fixedly arranged on the first female shell, the two locking buckles are movably arranged on both sides of the first female shell, and the end face of the second female shell away from the first female shell is provided with two female threading holes and two fixing holes.

6. The heavy-duty connector for connecting an electric actuator according to claim 5, characterized in that: A sealing ring is arranged between the first female housing and the second female housing.

7. The heavy-duty connector for connecting an electric actuator according to claim 1, characterized in that: The male plug has a groove, the pin is located in the groove, the circumferential side wall of the groove is provided with a plurality of raised slots, the female plug has a boss, the socket is located in the boss, the circumferential side wall of the boss is provided with a plurality of raised blocks corresponding to the slots, the male plug is fixedly connected to the female plug through the blocks being engaged with the slots, and the pin is plugged into the socket.

8. The heavy-duty connector for connecting an electric actuator according to claim 1, characterized in that: The diameter of the male threading hole is 22 mm, and the diameter of the female threading hole is 32 mm.

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