Splicing connector for valve electric actuator

Abstract

The utility model provides a splicing connector for a valve electric actuator. The splicing connector comprises a connecting connector, a splicing sleeve and a wire arranging connector which are sequentially connected from top to bottom. The bottom end of the connecting joint is provided with a splicing and inserting connecting pipe, the splicing and inserting connecting pipe is detachably inserted into the splicing and inserting sleeve, the outer side wall of the splicing and inserting connecting pipe is provided with a positioning protrusion, and the inner side wall of the splicing and inserting sleeve is provided with a positioning groove used for containing the positioning protrusion. The top end of the wire arrangement connector is rotatably inserted into the splicing sleeve, a wire arrangement cavity is formed in the wire arrangement connector, a wire inlet hole is formed in the side wall of the wire arrangement connector, and a wire outlet hole is formed in the top end of the wire arrangement connector. The side wall of the splicing sleeve is also provided with an installation screw hole, the interior of the installation screw hole is provided with a ball spring plunger, and the side wall of the wire arrangement connector is provided with a plurality of positioning holes. According to the splicing connector for the valve electric actuator, circuit fixation can be rapidly completed, circuits can be sorted, and the direction of the circuits can be flexibly adjusted.

Description

Technical Field

[0001] The utility model belongs to the field of valve electric actuator accessories, and particularly relates to a plug-in joint for a valve electric actuator. Background Art

[0002] A valve electric actuator refers to an automatic control device that uses electric energy as the main energy source and can control a valve to perform corresponding actions according to instructions input by a superior controller. In the prior art, a valve electric actuator mainly includes two parts: an actuator and a control unit. Among them, the actuator is connected to the valve stem of the controlled valve body, and the control unit is arranged on the actuator, and the control unit needs to be connected to a superior controller and a power supply through connection lines. When in use, the control unit can drive the actuator according to the instructions issued by the superior controller, so that the actuator drives the valve stem to perform corresponding actions, thereby completing the adjustment of the valve opening.

[0003] However, since a valve electric actuator is usually installed in a relatively narrow space, and the terminal blocks inside the control unit need to be connected to a superior controller and a power supply through multiple connection lines respectively, in the actual assembly process, the wiring work of the connection lines is often very difficult. First, the multiple connection lines may be intertwined with each other due to the narrow space, resulting in potential safety hazards for the valve electric actuator. Second, the existing wiring method cannot flexibly adjust the routing of the connection lines. When there are other components blocking the area where the connection lines pass, the staff can only bend the connection lines continuously for multiple times to avoid other components, which will reduce the service life of the connection lines and increase the maintenance cost of the valve electric actuator. Summary of the Utility Model

[0004] In view of this, the present utility model aims to provide a plug-in joint for a valve electric actuator to solve the above technical problems.

[0005] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0006] A splicing joint for a valve electric actuator comprises a connecting joint, a splicing sleeve and a wire-manipulating joint connected in sequence from top to bottom; a connecting screw hole is provided at the top of the connecting joint, and a splicing splicing tube is provided at the bottom end of the connecting joint, the splicing splicing tube is connected with the connecting screw hole, and the splicing splicing tube can be detachably inserted into the splicing sleeve; a positioning protrusion is provided on the outer side wall of the splicing splicing tube, and a positioning groove for accommodating the positioning protrusion is provided on the inner side wall of the splicing sleeve; the top end of the wire-manipulating joint can be rotatably inserted into the splicing sleeve, a wire-manipulating cavity is provided inside the wire-manipulating joint, a wire inlet hole connected with the wire-manipulating cavity is provided on the side wall of the wire-manipulating joint, and a wire outlet hole connected with the wire-manipulating cavity is provided at the top end of the wire-manipulating joint; a mounting screw hole is also provided on the side wall of the splicing sleeve, a ball spring plunger is provided inside the mounting screw hole, a plurality of positioning holes for accommodating the ball spring plunger are provided on the side wall of the wire-manipulating joint, and the plurality of positioning holes are arranged in a ring shape on the circumference of the axis of the wire-manipulating joint.

[0007] Furthermore, the positioning groove includes a guide section, a connecting section and a locking section which are connected in sequence, the length direction of the guide section and the length direction of the locking section are parallel to the axial direction of the splicing sleeve, and the length direction of the connecting section is perpendicular to the axial direction of the splicing sleeve; a guide cutout is also provided on the top surface of the splicing sleeve, and the guide cutout is connected to the top end of the guide section.

[0008] Furthermore, the splicing sleeve includes an splicing section and a limiting section which are interconnected, the splicing section is located at the top of the limiting section, and the inner diameter of the limiting section is smaller than the inner diameter of the splicing section; the positioning groove is arranged on the inner side wall of the splicing section, and the mounting screw hole is connected to the limiting section.

[0009] Furthermore, a blocking ring is provided at the top of the cable management connector, the blocking ring is located inside the splicing section, and the outer diameter of the blocking ring is equal to the inner diameter of the splicing section.

[0010] Furthermore, a plurality of toggle bars are provided on the outer side wall of the splicing sleeve.

[0011] Furthermore, the splicing sleeve is provided with a plurality of mounting screw holes, which are arranged in a ring shape around the axis of the splicing sleeve, and a ball head spring plunger is provided in each mounting screw hole.

[0012] Furthermore, anti-slip stripes are provided on the outer side wall of the cable management connector.

[0013] Furthermore, a plurality of wire entry holes are provided on the side wall of the wire management connector, and the plurality of wire entry holes are arranged along the axial direction of the wire management connector.

[0014] Compared with the prior art, the plug-in connector for a valve electric actuator described in the utility model has the following advantages:

[0015] The utility model discloses a plug-in connector for a valve electric actuator, wherein the connecting connector is detachably connected to the plug-in sleeve through a plug-in pipe, and the top of the wire-management connector can be rotatably inserted into the plug-in sleeve. When wiring, the staff can first install the connecting connector on the cable outlet pipe of the junction box, and the line to be connected passes through the wire-management connector, and then connect the line to the wiring terminal in the valve electric actuator. Since the connecting connector is connected to the plug-in sleeve by plug-in, the device can quickly complete the assembly between the plug-in sleeve and the connecting connector, thereby efficiently completing the fixing of the line. Secondly, the device can comb the line through the wire-management connector and avoid interlacing and entanglement between multiple lines. In addition, the device can also flexibly adjust the direction of the line through the rotation of the wire-management connector, which is convenient for avoiding other components, and can limit the rotation of the wire-management connector through the cooperation of the ball head spring plunger and the positioning hole to avoid abnormal rotation of the wire-management connector during normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0017] Figure 1 This is a structural schematic diagram of the plug-in connector for the electric valve actuator according to the embodiment of the utility model in the use state;

[0018] Figure 2 It is a cross-sectional view of the splicing connector for the electric valve actuator according to the embodiment of the utility model in the use state;

[0019] Figure 3 It is an exploded view of the splicing connector for the electric valve actuator according to the embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the splicing sleeve described in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1-connecting joint; 11-connecting screw hole; 2-joining plug-in tube; 21-positioning protrusion; 31-joining section; 311-guiding section; 312-connecting section; 313-locking section; 314-guiding notch; 32-limiting section; 321-installing screw hole; 33-sliding bar; 4-cable management joint; 41-cable management cavity; 42-cable entry hole; 43-cable exit hole; 44-positioning hole; 45-blocking ring; 5-ball head spring plunger; 6-cable lead-out tube; 62-line. DETAILED DESCRIPTION

[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0026] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] A plug-in joint for a valve electric actuator, the structure of which can be schematically shown by Figures 1-4 In this embodiment, the plug-in joint for the valve electric actuator includes a connection joint 1, a plug-in sleeve, and a wire management joint 4 that are sequentially connected from top to bottom. The connection joint 1 is used to lead out the cable outlet pipe 6 on the valve electric actuator where the present device is installed. The wire management joint 4 is used to comb the line 61 and adjust the routing of the line 61. The plug-in sleeve is used to realize the connection between the connection joint 1 and the wire management joint 4.

[0028] Specifically, the top end of the connection joint 1 is provided with a connection screw hole 11 for accommodating the cable outlet pipe 6, and the bottom end of the connection joint 1 is provided with a plug-in connection pipe 2 that is communicated with the connection screw hole 11. The wire management joint 4 is internally provided with a wire management cavity 41. On the side wall of the wire management joint 4, there is an inlet hole 42 that is communicated with the wire management cavity 41, and on the top end of the wire management joint 4, there is an outlet hole 43 that is communicated with the wire management cavity 41.

[0029] Optionally, in this embodiment, a plurality of wire inlet holes 42 may be provided on the side wall of the wire management joint 4, and the plurality of wire inlet holes 42 are arranged along the axial direction of the wire management joint 4. When the wire 61 enters and exits the inside of the wire management joint 4, the staff can classify the wires 61 according to the different transmission signals of the wires 61, and insert the wires 61 of the same type into the same wire inlet hole 42, thereby improving the combing effect of the wires 61.

[0030] When performing the wiring work, the staff can first install the connection joint 1 on the cable outlet pipe 6 by means of thread fitting, and rotatably insert the top end of the wire management joint 4 into the inside of the plug-in sleeve. Then, insert the wire 61 to be connected into the wire management cavity 41 along the wire inlet hole 42, and then pass through the wire outlet hole 43 out of the wire management cavity 41, so as to comb the wire 61 by means of the wire management joint 4 and prevent the multi-wires 61 from being intertwined. Next, the staff can insert the wire 61 into the junction box of the valve electric actuator along the connection joint 1 and the cable outlet pipe 6, so as to facilitate the connection between the wire 61 and the terminal. After completing the connection between the wire 61 and the terminal, the staff can insert the plug-in pipe 2 into the inside of the plug-in sleeve, so as to quickly fix the wire 61 by means of the connection between the plug-in pipe 2 and the plug-in sleeve. Finally, the staff can also rotate the wire management joint 4 according to the positions of other components around the valve electric actuator, so as to adjust the routing of the wire 61 outside the device and avoid the wire 61 being blocked by other components.

[0031] To strengthen the connection reliability between the plug-in sleeve and the connection joint 1, in this embodiment, a positioning protrusion 21 is provided on the outer side wall of the plug-in pipe 2, and a positioning groove for accommodating the positioning protrusion 21 is provided on the inner side wall of the plug-in sleeve. When the plug-in pipe 2 is inserted into the inside of the plug-in sleeve, the positioning protrusion 21 will enter the inside of the positioning groove, so as to prevent the plug-in sleeve from separating from the connection joint 1 by means of the cooperation of the positioning protrusion 21 and the positioning groove, and avoid relative rotation between the plug-in sleeve and the connection joint 1 after the assembly is completed.

[0032] Optionally, as Figure 4 shown, the positioning groove described in this embodiment may include a guiding section 311, a connecting section 312 and a locking section 313 that are sequentially connected. The length directions of the guiding section 311 and the locking section 313 are both parallel to the axial direction of the plug-in sleeve, the length direction of the connecting section 312 is perpendicular to the axial direction of the plug-in sleeve, and a guiding notch 314 communicating with the top end of the guiding section 311 is further provided on the top surface of the plug-in sleeve.

[0033] During the process of inserting the splicing pipe 2 into the splicing sleeve, the positioning protrusion 21 will enter the inside of the guide section 311 along the guide cutout 314. As the insertion depth of the splicing pipe 2 gradually increases, the positioning protrusion 21 will move from the guide section 311 to the connecting section 312. At this time, the staff can drive the splicing sleeve to rotate so that the positioning protrusion 21 moves along the connecting section 312 to the area where the locking section 313 is located. Then, the splicing sleeve can be driven to move along the axial direction of the splicing pipe 2 so that the positioning protrusion 21 enters the inside of the locking section 313. When the positioning protrusion 21 enters the inside of the locking section 313, a reliable connection effect will be obtained between the splicing sleeve and the connecting joint 1, thereby preventing the splicing sleeve from being separated from the connecting joint 1 after assembly is completed. At the same time, the positioning protrusion 21 and the locking section 313 can also prevent the splicing sleeve from rotating relative to the connecting joint 1, so that the staff can rotate the cable management joint 4.

[0034] In addition, in order to improve the assembly convenience between the splicing sleeve and the connecting joint 1, the present embodiment may further be provided with a plurality of toggle bars 33 on the outer side wall of the splicing sleeve. When the splicing sleeve and the connecting joint 1 are to be disassembled and assembled, the staff may apply a rotational torque to the splicing sleeve through the toggle bars 33, so that the splicing sleeve can be rotated in the corresponding direction during the disassembly and assembly process.

[0035] In order to facilitate the rotation limit of the cable connector 4, the device is also provided with a mounting screw hole 321 on the side wall of the splicing sleeve, and a ball spring plunger 5 is provided inside the mounting screw hole 321. Correspondingly, a plurality of positioning holes 44 are provided on the side wall of the cable connector 4, and the plurality of positioning holes 44 are arranged in a ring shape around the axis of the cable connector 4. When the staff adjusts the direction of the line 61 by rotating the cable connector 4, the side wall of the cable connector 4 between two adjacent positioning holes 44 will squeeze the positioning ball on the ball spring plunger 5 so that the positioning ball retracts into the ball spring plunger 5. When the cable connector 4 is rotated so that the cable inlet hole 42 faces the appropriate direction, the positioning ball of the ball spring plunger 5 will be inserted into a certain positioning hole 44 aligned with it, thereby limiting the rotation of the cable connector 4 and preventing the cable connector 4 from rotating abnormally when the valve electric actuator is working normally.

[0036] Optionally, in order to enhance the rotation limiting effect of the cable management connector 4, the splicing sleeve may be provided with a plurality of mounting screw holes 321 arranged in an annular shape on the circumference of the axis of the splicing sleeve, and a ball spring plunger 5 is provided in each mounting screw hole 321. When there are a plurality of ball spring plungers 5, the positioning balls of the plurality of ball plungers 5 will be respectively inserted into the plurality of positioning holes 44 after the cable management connector 4 is rotated to a suitable orientation, thereby forming a plurality of limiting points on the circumference of the axis of the cable management connector 4, thereby enhancing the rotation limiting effect of the cable management connector 4.

[0037] In addition, in order to prevent the cable management connector 4 from being separated from the splicing sleeve during use, the splicing sleeve in this embodiment may include a splicing section 31 and a limiting section 32 that are interconnected, wherein the splicing section 31 is located at the top of the limiting section 32, and the inner diameter of the limiting section 32 is smaller than the inner diameter of the splicing section 31. The positioning groove is provided on the inner side wall of the splicing section 31, and the mounting screw hole 321 is connected to the limiting section 32. During assembly, the splicing tube should be inserted into the splicing section 31 so that the positioning protrusion 21 can be smoothly positioned therein, and the top end of the cable management connector 4 should be rotatably inserted into the limiting section 32 so that the ball head spring plunger 5 inside the mounting screw hole 321 is aligned with the positioning hole 44.

[0038] Correspondingly, a blocking ring 45 may be provided at the top of the cable connector 4, and the outer diameter of the blocking ring 45 is equal to the inner diameter of the splicing section 31. After assembly, the blocking ring 45 will be located inside the splicing section 31, and the bottom end surface of the blocking ring 45 will fit with the top end surface of the limiting section 32, thereby preventing the cable connector 4 from being separated from the splicing sleeve.

[0039] As an optional implementation of this embodiment, in order to facilitate the staff to rotate the cable management connector 4, anti-slip stripes can be further provided on the outer wall of the cable management connector 4, thereby increasing the friction resistance when the staff grasps the cable management connector 4 with the help of the anti-slip stripes, thereby reducing the difficulty of rotating the cable management connector 4.

[0040] The effects of the above scheme are described below:

[0041] This embodiment provides a plug-in connector for a valve electric actuator, which can comb the lines through the wire management connector to prevent multiple lines from being intertwined and entangled, and can quickly fix the lines by plugging the connecting connector and the plug-in sleeve. Secondly, this device can adjust the direction of the line by rotating the wire management connector, making it convenient for the line to avoid other components. In addition, this device can limit the rotation of the wire management connector by cooperating with the ball head spring plunger and the positioning hole to prevent the wire management connector from rotating abnormally during normal operation.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-in joint for an electric actuator of a valve, characterized in that: The invention comprises a connection joint (1), an insert sleeve and a wire management joint (4) which are connected in sequence from top to bottom; the top of the connection joint (1) is provided with a connection screw hole (11), the bottom of the connection joint (1) is provided with an insert pipe (2), the insert pipe (2) is connected with the connection screw hole (11), and the insert pipe (2) can be detachably inserted into the insert sleeve; a positioning protrusion (21) is provided on the outer side wall of the insert pipe (2), and a positioning groove for accommodating the positioning protrusion (21) is provided on the inner side wall of the insert sleeve; the top of the wire management joint (4) can be rotatably inserted into the insert sleeve, and the wire management joint (4) can be rotatably inserted into the insert sleeve. (4) is provided with a wire management cavity (41) inside, a wire entry hole (42) communicating with the wire management cavity (41) is provided on the side wall of the wire management connector (4), and a wire exit hole (43) communicating with the wire management cavity (41) is provided at the top of the wire management connector (4); a mounting screw hole (321) is also provided on the side wall of the splicing sleeve, a ball head spring plunger (5) is provided inside the mounting screw hole (321), a plurality of positioning holes (44) for accommodating the ball head spring plunger (5) are provided on the side wall of the wire management connector (4), and the plurality of positioning holes (44) are arranged in a ring shape around the axis of the wire management connector (4).

2. The plug-in joint for a valve electric actuator according to claim 1, characterized in that: The positioning groove comprises a guide section (311), a connection section (312) and a locking section (313) which are connected in sequence; the length direction of the guide section (311) and the length direction of the locking section (313) are both parallel to the axial direction of the splicing sleeve, and the length direction of the connection section (312) is perpendicular to the axial direction of the splicing sleeve; a guide notch (314) is also provided on the top surface of the splicing sleeve, and the guide notch (314) is connected to the top end of the guide section (311).

3. A plug-in joint for a valve electric actuator according to claim 1, characterized in that: The splicing sleeve comprises an splicing section (31) and a limiting section (32) which are connected to each other. The splicing section (31) is located at the top of the limiting section (32), and the inner diameter of the limiting section (32) is smaller than the inner diameter of the splicing section (31). The positioning groove is arranged on the inner side wall of the splicing section (31), and the mounting screw hole (321) is connected to the limiting section (32).

4. A plug-in joint for an electric valve actuator according to claim 3, characterized in that: A blocking ring (45) is provided at the top of the cable management connector (4). The blocking ring (45) is located inside the splicing section (31), and the outer diameter of the blocking ring (45) is equal to the inner diameter of the splicing section (31).

5. The plug-in joint for a valve electric actuator according to claim 1, characterized in that: A plurality of toggle bars (33) are provided on the outer side wall of the splicing sleeve.

6. The plug-in joint for a valve electric actuator according to claim 1, characterized in that: The splicing sleeve is provided with a plurality of mounting screw holes (321), which are arranged in a ring shape around the axis of the splicing sleeve, and a ball head spring plunger (5) is provided in each mounting screw hole (321).

7. A plug-in joint for a valve electric actuator according to claim 1, characterized in that: The outer side wall of the cable management connector (4) is provided with anti-slip stripes.

8. A plug-in joint for a valve electric actuator according to claim 1, characterized in that: A plurality of wire entry holes (42) are provided on the side wall of the wire management connector (4), and the plurality of wire entry holes (42) are arranged along the axial direction of the wire management connector (4).

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