Connector structure

Abstract

The utility model provides a connector structure which comprises an execution shaft and a feedback shaft, the upper end of the execution shaft is provided with a first mounting hole, the first mounting hole is D-shaped, the execution shaft is further provided with a section, the section is provided with a second mounting hole, the second mounting hole is communicated with the first mounting hole, the lower end of the feedback shaft is in a D-shaped column shape, and the size and the depth of the feedback shaft correspond to those of the first mounting hole. And the lower end of the feedback shaft is embedded in the first mounting hole and is used for synchronously moving with the execution shaft. According to the utility model, the first mounting hole and the lower end of the feedback shaft are arranged to be D-shaped structures, so that the feedback shaft is prevented from rotating in the first mounting hole, the synchronous movement of the feedback shaft and the execution shaft is more accurate, and the stability of the connector is improved; according to the utility model, the section and the second mounting hole are arranged, and a fixing piece can be assembled in the second mounting hole, so that the feedback shaft and the execution shaft are matched more compactly, and the stability of the connector is further improved.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a connector structure. Background Art

[0002] An intelligent control valve integrates microelectronics technology, control technology, communication technology, software technology and conventional control technology, and is a control device capable of realizing intelligent control functions; the intelligent control valve is of great significance in improving the automation degree of the production process, reducing the operation cost and enhancing the safety.

[0003] An intelligent control valve usually consists of an intelligent valve positioner, an actuator and a regulating valve. The intelligent valve positioner is connected to the actuator, and the actuator is connected to the regulating valve. The actuator pushes the valve stem in the regulating valve to move, thereby changing the opening degree. The actuator is linked with the intelligent valve positioner, and then the displacement of the valve stem of the regulating valve is converted into an electric signal through a potentiometer and fed back to the controller in the intelligent valve positioner. The controller compares the electric signal with the set signal. When there is a deviation between the two, the controller changes its output signal to the actuator, causing the actuator to act, and then making the opening degree of the regulating valve reach the set value.

[0004] The intelligent valve positioner and the actuator are linked through a connector. The connector usually consists of an actuating shaft and a feedback shaft. The actuating shaft is connected to the actuator, and the feedback shaft is connected to the intelligent valve positioner. The connection stability between the actuating shaft and the feedback shaft determines the control accuracy of the intelligent valve positioner for the actuator. However, the existing connector has the problem of poor stability. Summary of the Utility Model

[0005] The utility model provides a connector structure to more precisely solve the problem of poor stability of the above connector.

[0006] The utility model is realized through the following technical solutions:

[0007] The utility model provides a connector structure, including an actuating shaft and a feedback shaft. A first mounting hole is provided at the upper end of the actuating shaft, and the first mounting hole is D-shaped; the actuating shaft is also provided with a section, and a second mounting hole is provided on the section, and the second mounting hole is communicated with the first mounting hole; the lower end of the feedback shaft is in a D-shaped column and corresponds to the first mounting hole. The lower end of the feedback shaft is embedded in the first mounting hole and is used for synchronous movement with the actuating shaft.

[0008] Further, the cross-sectional shape of the feedback shaft is the same as the cross-sectional shape of the first mounting hole.

[0009] Further, the first mounting hole includes a plane, and the first mounting hole does not penetrate through the actuating shaft.

[0010] Further, the profile is located outside the execution axis, and the profile is parallel to the plane of the first mounting hole.

[0011] Further, the second mounting hole is threaded and is used to make the cooperation between the execution axis and the feedback axis closer.

[0012] Further, a convex block is provided at the lower end of the execution axis. The convex block is T-shaped and is used for mounting the execution axis.

[0013] Advantages of the present utility model:

[0014] The present utility model provides a connector structure, including an execution axis and a feedback axis. A first mounting hole is provided at the upper end of the execution axis. The first mounting hole is D-shaped. The execution axis further has a profile, and a second mounting hole is provided on the profile. The second mounting hole communicates with the first mounting hole. The lower end of the feedback axis is D-shaped columnar and corresponds to the first mounting hole. The lower end of the feedback axis is embedded in the first mounting hole and is used for synchronous movement with the execution axis. By setting both the first mounting hole and the lower end of the feedback axis as D-shaped structures in the present utility model, the rotation of the feedback axis in the first mounting hole is avoided, making the synchronous movement between the feedback axis and the execution axis more accurate and effectively improving the stability of the connector. The present utility model proposes to provide a profile on the execution axis and a second mounting hole on the profile. Fixing parts can be assembled in the second mounting hole, making the cooperation between the feedback axis and the execution axis more compact and further improving the stability of the connector. Description of the drawings

[0015] Figure 1 It is the overall structure diagram of a connector structure in an embodiment of the present utility model;

[0016] Figure 2 It is the exploded view of a connector structure in an embodiment of the present utility model;

[0017] Figure 3 It is the top view of the connecting shaft for assembling fixing parts in an embodiment of the present utility model.

[0018] 1. Execution axis; 2. Feedback axis; 11. First mounting hole; 12. Second mounting hole; 13. Profile; 14. Convex block; 111. Plane; 3. Fixing part. Specific embodiments

[0019] In order to more clearly and completely illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the drawings.

[0020] Please refer to Figures 1 - 3, the present utility model provides a connector structure, which includes an actuating shaft 1 and a feedback shaft 2. The upper end of the actuating shaft 1 is provided with a first mounting hole 11, and the first mounting hole 11 is D-shaped. The actuating shaft 1 is further provided with a section 13, and a second mounting hole 12 is provided on the section 13. The second mounting hole 12 communicates with the first mounting hole 11. The lower end of the feedback shaft 2 is D-shaped cylindrical and corresponds to the first mounting hole 11. The lower end of the feedback shaft 2 is embedded in the first mounting hole 11 and is used to move synchronously with the actuating shaft 1.

[0021] In this embodiment, the connector includes an actuating shaft 1 and a feedback shaft 2. The upper end of the actuating shaft 1 is provided with a first mounting hole 11, and the first mounting hole 11 has a D-shaped structure. The first mounting hole 11 includes a plane 111, and the first mounting hole 11 extends downward to a certain depth. The first mounting hole 11 does not penetrate the entire actuating shaft 1 and is used to mount the feedback shaft 2. The actuating shaft 1 is further provided with a section 13, and the section 13 is located on the outside of the actuating shaft 1. A second mounting hole 12 is provided on the section 13. The second mounting hole 12 communicates with the first mounting hole 11. The second mounting hole 12 is threaded and is used to mount a fixing member 3. The fixing member 3 makes the cooperation between the actuating shaft 1 and the feedback shaft 2 closer and ensures the synchronous operation of the actuating shaft 1 and the feedback shaft 2. The lower end of the feedback shaft 2 is D-shaped cylindrical, and the shape of the cross-section of the feedback shaft 2 is the same as that of the cross-section of the first mounting hole 11. The lower end of the feedback shaft 2 is embedded in the first mounting hole 11 and is used to move synchronously with the actuating shaft 1. In a specific embodiment, the actuating shaft 1 is connected to an actuator, and the feedback shaft 2 is connected to an intelligent valve positioner. When the actuator operates, it can drive the actuating shaft 1 to rotate. The feedback shaft 2 is embedded in the actuating shaft 1 to form a tight fit. The actuating shaft 1 drives the feedback shaft 2 to rotate. The rotation of the feedback shaft 2 enables the intelligent valve positioner to obtain the current valve opening condition. The intelligent valve positioner compares the current valve opening condition with the set value and sends a corresponding control signal to the actuator until the actuator controls the valve opening to reach the set value, thereby completing the entire automatic control process.

[0022] The present utility model provides a connector structure, which includes an actuating shaft 1 and a feedback shaft 2. The upper end of the actuating shaft 1 is provided with a first mounting hole 11, and the first mounting hole 11 is D-shaped. The actuating shaft 1 is further provided with a section 13, and a second mounting hole 12 is provided on the section 13. The second mounting hole 12 is communicated with the first mounting hole 11. The lower end of the feedback shaft 2 is D-shaped columnar and corresponds to the first mounting hole 11. The lower end of the feedback shaft 2 is embedded in the first mounting hole 11 and is used for synchronous movement with the actuating shaft 1. In the connector structure proposed by the present utility model, both the first mounting hole 11 and the lower end of the feedback shaft 2 are set as D-shaped structures, and their sizes and depths correspond to each other. The feedback shaft 2 is embedded in the first mounting hole 11, which avoids the rotation of the feedback shaft 2 in the first mounting hole 11, makes the synchronous movement of the feedback shaft 2 and the actuating shaft 1 more accurate, and greatly improves the stability of the connector. The present utility model proposes to set the section 13 and the second mounting hole 12. A fixing member 3 can be assembled in the second mounting hole 12, so that the feedback shaft 2 and the actuating shaft 1 are more tightly matched, further avoiding the rotation of the feedback shaft 2 in the first mounting hole 11, and further improving the stability of the connector.

[0023] Please refer to Figures 1 - 3 , the first mounting hole 11 includes a flat surface 111. The first mounting hole 11 does not penetrate the entire actuating shaft 1, and the cross-sectional shape of the feedback shaft 2 is the same as that of the first mounting hole 11.

[0024] In specific implementation: the first mounting hole 11 is of D-shaped structure. The D-shaped first mounting hole 11 includes a flat surface 111 and a curved surface. The first mounting hole 11 starts from the top end of the actuating shaft 1 and extends downward to a certain depth. The first mounting hole 11 does not penetrate the entire actuating shaft 1. In a specific embodiment, the depth of the first mounting hole 11 is not fixed and is used for mounting the feedback shaft 2. The lower end of the feedback shaft 2 is D-shaped columnar. The length of the lower end of the feedback shaft 2 corresponds to the depth of the first mounting hole 11. The cross-sectional shape of the feedback shaft 2 is the same as that of the first mounting hole 11. The lower end of the feedback shaft 2 is embedded in the first mounting hole 11, which avoids the rotation of the feedback shaft 2 in the first mounting hole 11, makes the synchronous movement of the feedback shaft 2 and the actuating shaft 1 more accurate, and greatly improves the stability of the connector. Secondly, increasing the thickness of the actuating shaft 1 is beneficial to improving the service life of the connector.

[0025] Please refer to Figures 1 - 3 , the section 13 is parallel to the flat surface 111 of the first mounting hole 11. The section 13 starts from the upper end of the actuating shaft 1 and extends downward to the depth corresponding to the first mounting hole 11.

[0026] In specific implementation: The first mounting hole 11 is D-shaped. The first mounting hole 11 includes a flat surface 111 and a curved surface. A section 13 is provided on the outer surface of the actuating shaft 1. The section 13 is parallel to the flat surface 111 of the first mounting hole 11. The section 13 starts from the upper end of the actuating shaft 1 and extends downward to the depth corresponding to the first mounting hole 11. The setting of the section 13 is beneficial to the subsequent orientation and the installation of the fixing member 3.

[0027] Please refer to Figures 1 - 3 , the second mounting hole 12 is threaded and is used to make the cooperation between the actuating shaft 1 and the feedback shaft 2 closer.

[0028] In specific implementation: A second mounting hole 12 is provided in the section 13. The second mounting hole 12 is threaded. The second mounting hole 12 is used to assemble the fixing member 3. The fixing member 3 is used to make the cooperation between the feedback shaft 2 and the actuating shaft 1 more compact. In a specific embodiment, the second mounting hole 12 can be located at the center of the section 13. The fixing member 3 can be a screw. The screw starts from the section 13, passes through the second mounting hole 12 and is screwed into the first mounting hole 11 and abuts against the feedback shaft 2, making the cooperation between the actuating shaft 1 and the feedback shaft 2 more compact, and further improving the stability of the connector. Compared with the cooperation between the screw and the curved surface, the cooperation between the screw and the section 13 is more firm, and further improves the stability of the connector.

[0029] Please refer to Figure 1 and Figure 2 , a convex block 14 is further provided at the lower end of the actuating shaft 1. The convex block 14 has a T-shaped structure

[0030] In specific implementation: A convex block 14 is further provided at the lower end of the actuating shaft 1. The convex block 14 has a T-shaped structure and is used to connect with the actuator. In a specific embodiment, the actuator is provided with a T-shaped groove. The shape and size of the T-shaped groove are the same as those of the convex block 14. Embedding the actuating shaft 1 into the actuator is beneficial to ensuring the synchronous movement of the actuator and the actuating shaft 1, and is beneficial to the precise control of the actuator over the actuating shaft 1.

[0031] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A connector structure, characterized in that, It includes an execution shaft and a feedback shaft. A first mounting hole is provided at the upper end of the execution shaft, and the first mounting hole is D-shaped; the execution shaft is also provided with a section, and a second mounting hole is provided on the section, and the second mounting hole communicates with the first mounting hole; the lower end of the feedback shaft is D-shaped columnar and corresponds to the first mounting hole, and the lower end of the feedback shaft is embedded in the first mounting hole and is used to move synchronously with the execution shaft.

2. The connector structure according to claim 1, wherein, The shape of the cross-section of the feedback shaft is the same as the shape of the cross-section of the first mounting hole.

3. The connector structure according to claim 1, wherein, The first mounting hole includes a plane, and the first mounting hole does not penetrate through the execution shaft.

4. The connector structure according to claim 3, wherein, The section is located on the outside of the execution shaft, and the section is parallel to the plane of the first mounting hole.

5. The connector structure according to claim 1, characterized in that, The second mounting hole is threaded and is used to make the cooperation between the execution shaft and the feedback shaft closer.

6. The connector structure according to claim 1, wherein A convex block is further provided at the lower end of the execution shaft, and the convex block is T-shaped and is used to mount the execution shaft.

Images