A valve opening degree adjusting device and a valve assembly

Abstract

The present invention discloses a valve opening adjusting device and a valve assembly, which relate to the technical field of industrial automation control. The device includes a substrate; a driving member is arranged on the substrate, a first shaft is in transmission connection with the driving shaft of the driving member, and a clamping groove is arranged in the sliding cavity of the first shaft; a second shaft is provided with an adapting groove, and the adapting groove and the clamping groove form a through space; a linkage member is provided with adapting teeth, and the adapting teeth are movably arranged in the through space. In the first position, the adapting teeth are in transmission connection with the adapting groove, and in the second position, the two axial ends of the adapting teeth are respectively in transmission connection with the clamping groove and the adapting groove; an output shaft is in transmission connection with the second shaft, and a valve body is arranged at the end of the output shaft away from the second shaft; a control assembly is coupled to the driving member and is used for controlling the driving member to rotate a preset angle according to the received control signal, so that the output shaft drives the valve body to rotate to adjust the flow rate; and it is also used for performing a preset action when the driving of the driving member fails. With such a setting, the technical problem that the driving failure of the driving member cannot be effectively dealt with is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial automation control, and particularly relates to a valve opening adjustment device and a valve assembly. Background Art

[0002] Valves (referred to as valve in English) can be divided into various types according to different structures, functions, and application fields, such as globe valves, check valves, and regulating valves, etc. Most of them use the valve body to adjust the flow rate of the medium in the pipeline.

[0003] In the related art, due to the frequent opening or flow rate adjustment of the valve, there is a risk of failure of the driving member of the valve, and further, under the action of the failed driving member, the adjustment process of the valve body is completely out of control, leading to potential safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide a valve opening adjustment device and a valve assembly, which at least partially solve the above technical problems.

[0005] To achieve the above purpose, the present invention provides a valve opening adjustment device, including:

[0006] A substrate;

[0007] A driving member, arranged on the substrate, including a driving shaft;

[0008] A first shaft, in transmission connection with the driving shaft, provided with a sliding chamber, and the sliding chamber is provided with a clamping groove;

[0009] A second shaft, the interior of one end is provided with an adaptation groove, and the adaptation groove and the clamping groove form a through space;

[0010] A linkage member, provided with adaptation teeth, and the adaptation teeth are movably arranged in the through space. In the first position, the adaptation teeth are in transmission connection with the adaptation groove, and in the second position, the axial two ends of the adaptation teeth are respectively in transmission connection with the clamping groove and the adaptation groove;

[0011] An output shaft, in transmission connection with the second shaft, and a valve body is arranged at the end of the output shaft departing from the second shaft;

[0012] A control component, coupled to the driving member, for controlling the driving member to rotate a preset angle according to the received control signal, so that the output shaft drives the valve body to rotate to adjust the flow rate; and is also used to execute a preset action when the driving of the driving member fails.

[0013] In some embodiments, the sliding chamber extends along the axis of the first shaft and penetrates through both ends of the first shaft. One end of the linkage member departing from the adaptation teeth is provided with an insertion groove for the external tool to be inserted and fitted. By the cooperation of the external tool and the insertion groove, a rotational torque is applied to the external tool to rotate the linkage member in the first position.

[0014] In some embodiments, a prompting device is provided on one of the inner wall of the fitting groove and the linkage member, and the prompting device is configured to: when the linkage member moves from the second position to the first position, the prompting device is triggered and gives a prompt; and / or,

[0015] A prompting device is provided on the inner wall of the insertion groove, and the prompting device is configured to: when an external tool extends into the insertion groove and is installed in place, the prompting device is triggered and gives a prompt.

[0016] In some embodiments, the first shaft further has a receiving chamber communicating with the sliding chamber. The receiving chamber is located at one end of the card slot away from the sliding chamber, and one end of the second shaft provided with the fitting groove is rotatably arranged in the receiving chamber.

[0017] In some embodiments, a radial protrusion is provided on the outer side wall of the second shaft, and the radial protrusion abuts against the end face of the receiving chamber.

[0018] In some embodiments, the linkage member includes a rod body. One end of the rod body is provided with fitting teeth. The rod body is slidably arranged in the sliding chamber. There is a shoulder between one end of the through space away from the fitting groove and the sliding chamber to limit the fitting teeth from sliding into the sliding chamber.

[0019] In some embodiments, the driving shaft and the output shaft are parallel and non-collinear, and both are arranged in a direction perpendicular to the plane where the substrate is located.

[0020] In some embodiments, the second shaft is further drivingly connected to a connecting shaft. The connecting shaft is parallel and non-collinear with respect to the driving shaft and the output shaft, and the connecting shaft and the output shaft are located on different sides of the substrate.

[0021] In some embodiments, an elastic member is provided in the fitting groove. The elastic member extends along the axial direction of the second shaft. Two ends of the elastic member respectively abut against the inner wall of the fitting groove and the linkage member. The elastic member is used to make the linkage member tend to be in the second position.

[0022] A valve assembly includes the above valve opening adjusting device.

[0023] With respect to the above background, the valve opening adjustment device provided by the present invention includes a base plate, a driving member is provided on the base plate, the driving member includes a driving shaft, the driving shaft is used to output the power of the driving member, the driving shaft and the first shaft are connected in transmission, a sliding chamber is provided inside the first shaft, a card groove is provided on the inner side wall of the sliding chamber, a second shaft is provided at the end of the first shaft where the sliding chamber is provided, the second shaft can be coaxially arranged with the first shaft, and an adapting groove is provided inside the end face of the second shaft close to one side of the first shaft, the adapting groove and the card groove are connected to form a through space, a linkage member is also provided in the first shaft and the second shaft, the linkage member is provided with an adapting tooth, the adapting tooth can slide in the through space, when the adapting tooth is in the first position, the adapting tooth is only engaged with the adapting groove to realize the transmission connection between the linkage member and the second shaft, when the adapting tooth is in the second position, the adapting tooth is along the axial direction The two ends are respectively engaged with the adapter groove and the card slot, and the end of the second shaft away from the adapter groove is connected to the output shaft, and the end of the output shaft away from the second shaft is connected to the valve body. In addition, the control component is coupled to the driving member, and the control component controls the driving member to rotate a preset angle according to the received control signal, so that the output shaft can drive the valve body to rotate, and finally adjust the flow rate; when the driving member operates normally, the linkage member is in the second position, that is, the first shaft and the second shaft are connected through the linkage member, and the power of the driving shaft can be transmitted to the output shaft through the first shaft and the second shaft, and the output shaft drives the valve body to open the preset angle, and when the driving member is in a failed state, that is, the driving member fails, the control component performs a preset action to achieve corresponding emergency avoidance effects, thereby avoiding the occurrence of accidents caused by the failure of the driving member.

[0024] It can be seen that the valve opening adjustment device provided by the present invention has at least the following beneficial effects:

[0025] First, the present application utilizes a control assembly to control the driving member, which can accurately and reliably adjust the rotation angle of the driving shaft of the driving member, thereby ensuring that the rotation of the valve body is accurate and controllable, and improving the requirements for refined flow regulation;

[0026] Secondly, the control component can not only control the driving part, but also execute a preset action when the driving part fails. That is, once the driving part fails, the control component can be notified in time and the control component executes the preset action, which minimizes the impact of the accident caused by the driving failure of the driving part. To a certain extent, it alleviates the consequences caused by the driving failure of the driving part and improves the safety of use.

[0027] Third, based on the setting method of the linkage parts, it plays a function similar to that of a clutch, that is, by switching the position between the first position and the second position, the first shaft and the second shaft can be disconnected and the transmission connection can be made, which brings more possibilities for the control component to perform the corresponding preset actions, and significantly improves the applicability of the valve opening adjustment device.

[0028] The present application also provides a valve assembly, including the valve opening adjustment device as described above. For its beneficial effects, reference can be made to the above, and details will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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 for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative efforts.

[0030] Figure 1 The valve opening adjustment device for hiding the second half shell provided by the embodiment of the present invention;

[0031] Figure 2 The valve opening adjustment device for hiding the first half shell and the second half shell provided by the embodiment of the present invention;

[0032] Figure 3 The structural diagram of the first shaft and the second shaft assembly provided by the embodiment of the present invention;

[0033] Figure 4 The sectional view of the first shaft, the linkage member and the second shaft assembly in the normal state of the driving member provided by the embodiment of the present invention;

[0034] Figure 5 The sectional view of the first shaft, the linkage member and the second shaft assembly in the failure state of the driving member provided by the embodiment of the present invention;

[0035] Figure 6 The sectional view of the first shaft provided by the embodiment of the present invention;

[0036] Figure 7 The sectional view of the first shaft and the linkage member assembly provided by the embodiment of the present invention;

[0037] Figure 8 The sectional view of the first shaft and the second shaft assembly provided by the embodiment of the present invention;

[0038] Figure 9 The structural diagram of the first half shell and the second half shell assembly provided by the embodiment of the present invention.

[0039] Wherein;

[0040] 1 - Substrate;

[0041] 2 - Driving member; 21 - Driving shaft;

[0042] 3 - First shaft; 31 - Sliding chamber; 311 - Card slot; 32 - Accommodating chamber;

[0043] 4 - Second shaft; 41 - Adaptation groove; 42 - Radial protrusion;

[0044] 5 - Through - space; 51 - Shoulder;

[0045] 6 - Linkage member; 61 - Adaptation teeth; 62 - Insertion groove; 63 - Rod body;

[0046] 7 - Output shaft;

[0047] 8 - Control component;

[0048] 91 - Prompt device; 92 - Prompt means;

[0049] 10 - Connecting shaft;

[0050] 11 - Elastic member;

[0051] 12 - First half - shell;

[0052] 13 - Second half - shell;

[0053] 14 - Heat sink;

[0054] 15 - Connecting hole;

[0055] 16 - Feedback device. Detailed implementation manners

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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.

[0057] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0058] Please refer to the appended Figure 1 to appended Figure 5 , this application provides a valve opening adjustment device, which includes a substrate 1, a driving member 2, a first shaft 3 and a second shaft 4. The driving member 2 is carried on the substrate 1, and the driving member 2 includes a driving shaft 21.

[0059] The substrate 1 is plate-shaped and can be regarded as an installation base. A driving member 2 is provided on it, which is used to output the power generated by the driving member 2 through the rotation of the driving shaft 21. The driving member 2 can be specifically a driver such as a motor. In some embodiments, the driving member 2 is arranged on the first surface of the substrate 1, and the driving shaft 21 passes through the substrate 1 and is connected to the first shaft 3 located on the second surface of the substrate 1, that is, the driving member 2 transmits power to the first shaft 3.

[0060] Please refer to the instructions for Figure 6 To the attached Figure 8 The first shaft 3 is provided with a sliding chamber 31 along its axial direction, and a groove 311 is provided at the end of the sliding chamber 31 away from the driving shaft 21. A second shaft 4 is provided at the end of the first shaft 3 where the groove 311 is provided. The second shaft 4 is coaxially arranged with the first shaft 3, and an adapting groove 41 is provided inside the end surface of the second shaft 4 on the side where the groove 311 is docked. The adapting groove 41 can be docked with the groove 311 to form a through space 5.

[0061] A linkage member 6 is provided within the first shaft 3 and the second shaft 4. Adaptive teeth 61 are provided at the ends of the linkage member 6. Adaptive teeth 61 are slidably disposed within the through-space 5. Obviously, the adapting groove 41 and the latching groove 311 serve as different portions of the through-space 5. If the adapting groove 41 and the latching groove 311 are configured as circular tooth grooves, the through-space 5 will also be circular, with tooth grooves on its inner wall. These tooth grooves should mate with the adapting teeth 61, meaning that the adapting teeth 61 can extend into the through-space 5 and engage with the tooth grooves to restrict relative rotation between the two.

[0062] In this article, based on the coaxial arrangement of the first shaft 3 and the second shaft 4, the length extension direction of the adaptation groove 41 and the clamping groove 311 can be set to extend along the axial direction of the first shaft 3, that is, the tooth groove of the through space 5 extends along the axial direction of the first shaft 3, and the axial length of the adaptation groove 41 is greater than or equal to the length of the adaptation tooth 61. When the adaptation tooth 61 is fully extended into the adaptation groove 41, the adaptation tooth 61 is only engaged with the second shaft 4, and this position is recorded as the first position. The axial length of the clamping groove 311 is less than the length of the adaptation tooth 61, that is, after the adaptation tooth 61 is fully engaged with the clamping groove 311, there is still a partial section extending into the adaptation groove 41 and engaged with the adaptation groove 41. The adaptation tooth 61 fixedly connects the first shaft 3 and the second shaft 4, and the position of the adaptation tooth 61 at this time is recorded as the second position.

[0063] An output shaft 7 is connected to the end of the second shaft 4 away from the adapting groove 41 , and an end of the output shaft 7 away from the base plate 1 is connected to the valve body. The second shaft 4 drives the output shaft 7 to rotate and turn the valve to a preset angle.

[0064] The control component 8 and the driving member 2 are coupled and connected. The control component 8 can control the driving member 2 to rotate a preset angle according to the received control signal. Here, the control component 8 can obtain the control signal sent from the outside in the form of wireless or wired transmission, so as to control the driving member 2 to rotate a preset angle. Obviously, the control component 8 should include a signal receiving module and a control module. The signal receiving module and the control module are signal-connected, and the control module is connected to the driving member 2. The signal receiving module is used to receive the control signal transmitted from the outside, and the control module is used to control the operation of the driving member 2, that is, to control the rotation angle of the driving shaft 21.

[0065] In addition, the control component 8 can also perform a preset action when the drive of the driving member 2 fails; here, the drive failure of the driving member 2 includes various situations. For example, when the driving member 2 is in a power-off situation, obviously the driving function of the driving member 2 fails. The control component 8 and the driving member 2 are connected in series, and the control component 8 is connected to the power supply status display circuit. The control component 8 includes a display lamp. It can be considered that there is a display lamp on the power supply status display circuit, and the display lamp flashes in the powered-on state; when the driving member 2 is powered off due to an external power supply, the control component 8 will also be powered off. At this time, the power supply status display circuit is powered off, and the display lamp of the control component 8 goes out, thereby reminding the operator to take corresponding measures, such as turning off the power supply, etc. At this time, the extinguishing of the display lamp of the control component 8 can be regarded as the preset action performed by the control component 8 when the drive of the driving member 2 fails.

[0066] Of course, the control component 8 can also include alarm devices such as emergency lighting lamps and / or sound and light alarms. The alarm devices are connected to the uninterruptible power supply. When the external power supply of the driving member 2 is powered off, the control component 8 will also be powered off due to the influence of the external power supply power-off. At this time, the uninterruptible power supply starts to supply power, and the emergency lighting lamp and / or the sound and light alarm realize emergency lighting and / or sound and light alarm under the power supply of the uninterruptible power supply to remind the operator to take corresponding measures. Obviously, the realization of emergency lighting and / or sound and light alarm by the emergency lighting lamp and / or the sound and light alarm here can be regarded as the preset action performed by the control component 8 when the drive of the driving member 2 fails.

[0067] The driving failure situation of the driving member 2 also includes: when the control component 8 controls the driving shaft 21 of the driving member 2 to rotate a preset angle, but the difference between the actual rotation angle of the driving shaft 21 and the preset angle is large, then the driving of the driving member 2 can also be considered to have failed; a Hall sensor can be provided at the driving shaft 21, the control component 8 is connected to the alarm component, the Hall sensor is electrically connected to the control component 8, and the Hall sensor is used to detect the actual rotation angle signal value of the driving shaft 21, and the detected actual rotation angle signal value is fed back to the control component 8. The control component 8 compares the actual rotation angle with the preset angle. If the difference between the two exceeds the preset difference, the control component 8 determines that the driving of the driving member 2 has failed. At this time, the control component 8 controls the alarm component to issue an alarm, such as an audible and visual alarm, to remind the operator to take corresponding measures. It can be seen that the action of the control component 8 controlling the alarm component to issue an alarm is the preset action performed by the control component 8 when the driving of the driving member 2 fails.

[0068] In addition, the preset actions performed by the control component 8 when the driving of the driving member 2 fails are not limited to the display light turning off and the alarm component alarming as described above, but can also actively control the position of the linkage member 6 to disconnect the first shaft 3 and the second shaft 4, that is, disconnect the connection between the driving member 2 and the output shaft 7.

[0069] In combination with the above, when the first shaft 3 and the second shaft 4 are transmission-connected, the linkage member 6 is in the second position, and the axial ends of the adapter tooth 61 are transmission-connected to the card slot 311 and the adapter slot 41 respectively. When the control component 8 determines that the drive of the driving member 2 fails (the failure judgment method can adopt the Hall sensor mentioned above), the control component 8 can control the linkage member 6 to move from the second position to the first position. An electromagnet may be provided inside the second shaft 4, which generates magnetism after being energized. The electromagnet is located at the end of the adapter slot 41 facing away from the card slot 311. The electromagnet is electrically connected to the control component 8. When the control component 8 determines that the drive of the driving member 2 has failed, it energizes the electromagnet to make the electromagnet generate magnetism, and the linkage member 6 is provided with a magnetic pole at the end facing the adapter slot 41. The magnetic pole of the linkage member 6 and the magnetism generated by the electromagnet are of opposite polarity. For example, if the magnetic pole of the linkage member 6 is the S pole, the magnetism generated by the electromagnet should be the N pole. In this way, the linkage member 6 can be attracted to the first position, that is, the connection between the first shaft 3 and the second shaft 4 is disconnected. Thus, the control component 8 controls the linkage member 6 to move from the second position to the first position, which is the preset action performed by the control component 8 when the drive of the driving member 2 fails.

[0070] Such a setting can quickly and effectively disconnect the connection between the driving member 2 and the output shaft 7. The power of the driving member 2 can only be transmitted to the first shaft 3. Regardless of whether the operation of the driving member 2 is reliable, it will not affect the second shaft 4 and the output shaft 7, thereby effectively avoiding the complete loss of control of the valve body's adjustment process due to the loss of control of the operation of the driving member 2, causing safety hazards.

[0071] In some embodiments, please refer to the appendix of the specification. Figure 3 To the attached Figure 5 The sliding chamber 31 passes through both ends of the first shaft 3 along the axial direction of the first shaft 3. An inserting groove 62 is provided at the end of the linkage member 6 away from the adapting tooth 61. The inserting groove 62 corresponds to the port of the sliding chamber 31. The external tool outside the valve opening adjustment device can enter the first shaft 3 through the penetrating sliding chamber 31 and dock with the inserting groove 62 of the linkage member 6.

[0072] In combination with the above, when the driving member 2 is powered off due to external reasons, that is, the driving member 2 stops running and cannot provide power to the driving shaft 21, the control component 8 performs a preset action after being informed that the driving of the driving member 2 has failed. The operator can connect the linkage member 6 through an external tool, and by pushing the linkage member 6, the linkage member 6 is moved from the second position to the first position, that is, the adapter tooth 61 is only engaged with the adapter groove 41 of the second shaft 4. The operator rotates the external tool to drive the second shaft 4 to rotate, and the output shaft 7 connected to the second shaft 4 drives the valve body to adjust the valve body opening.

[0073] Please continue to refer to the instructions Figure 4 With attached Figure 5 A prompt device 91 is provided on the inner wall of the adapting groove 41 or the end face of the linkage member 6. In one embodiment of the present invention, the prompt device 91 is provided on the end face of the linkage member 6 close to the adapting groove 41. The prompt device 91 is configured so that when the linkage member 6 moves from the second position to the first position, the control component 8 controls the prompt device 91 to operate, prompting the operator that the adapting groove 41 is only engaged with the adapting tooth 61.

[0074] A prompting device 92 is provided within the insertion slot 62. When the external tool is fully inserted into the insertion slot 62 and abuts against the prompting device 92, the prompting device 92 activates, notifying the operator that the external tool is properly installed and that manual valve body adjustment can begin. The prompting device 91 and the prompting device 92 can be configured as elastic sounding members. When triggered and deformed, the elastic sounding members emit a distinct "clicking" sound to indicate to the operator that the installation is in place, effectively improving the convenience and ensuring a reliable installation process.

[0075] In some embodiments, please refer to the appendix of the specification. Figure 6 With attached Figure 7 A accommodating chamber 32 is provided at one end of the first shaft 3 where the slot 311 is provided. At this time, the accommodating chamber 32 is connected to the slot 311 and the sliding chamber 31. The accommodating chamber 32, the slot 311, and the sliding chamber 31 are arranged in sequence toward the side away from the second shaft 4.

[0076] The accommodating chamber 32 is rotatably connected to one end of the second shaft 4 provided with the mating groove 41. The first shaft 3 and the second shaft 4 are coaxially arranged. When the linkage member 6 is in the first position, the second shaft 4 can rotate within the accommodating chamber 32. That is to say, when the driving member 2 is in a driving failure state, the control assembly 8 controls the linkage member 6 to move to the first position, the first shaft 3 and the second shaft 4 are separated, and the rotating driving shaft 21 only drives the first shaft 3 to rotate. The second shaft 4 loses the driving power from the driving member 2, avoiding the occurrence of unexpected situations.

[0077] A radial protrusion 42 is provided on the outer periphery of the second shaft 4. The radial protrusion 42 and the second shaft 4 are coaxially arranged. After the mating groove 41 and the accommodating chamber 32 of the first shaft 3 are fitted, the end face of the first shaft 3 abuts against the radial protrusion 42. The radial protrusion 42 is used to define the axial degree of freedom between the first shaft 3 and the second shaft 4.

[0078] The linkage member 6 includes a rod body 63. One end of the rod body 63 is provided with mating teeth 61. The rod body 63 is slidably arranged in the sliding chamber 31. A shoulder 51 is provided at the connection between the sliding chamber 31 and the card slot 311, that is, the aperture size of the card slot 311 is slightly larger than the aperture size of the sliding chamber 31. After the transmission member extends into the inner cavity of the card slot 311, the mating teeth 61 abut against the shoulder 51. The shoulder 51 also limits the axial degree of freedom of the mating teeth 61, preventing the linkage member 6 from sliding into the sliding chamber 31 and causing the linkage member 6 to be unable to connect the first shaft 3 and the second shaft 4.

[0079] Please refer to the attached Figure 1 of the specification. The first shaft 3 and the second shaft 4 are coaxially arranged. The first shaft 3 is perpendicular to the driving shaft 21. The driving shaft 21 and the output shaft 7 are parallel to each other and non-collinear. The driving shaft 21 vertically passes through the substrate 1 and is connected to the driving member 2 on the other side of the substrate 1. The driving shaft 21 and the output shaft 7 are respectively arranged at both ends of the first shaft 3 and the second shaft 4 along the thickness direction of the substrate 1. One end of the output shaft 7 facing away from the substrate 1 is connected to the valve body. A worm gear connection can be adopted between the driving shaft 21 and the first shaft 3, and between the second shaft 4 and the output shaft 7.

[0080] An elastic member 11 is additionally provided between the mating groove 41 and the linkage member 6. The elastic member 11 extends along the axis direction of the second shaft 4. The elastic member 11 presses against the linkage member 6. The end of the linkage member 6 abuts against the shoulder 51, so that the mating teeth 61 always have a tendency to remain in the second position. That is, when the driving member 2 is operating normally, the linkage member 6 is only subjected to the elastic force of the elastic member 11. The elastic member 11 presses against the linkage member 6, causing the linkage member 6 to be in the second position. At this time, the first shaft 3 and the second shaft 4 are fixedly connected and can rotate synchronously. In addition, when the driving of the driving member 2 fails, the elastic member 11 is gradually compressed during the process of the linkage member 6 moving to the first position, increasing the elastic potential energy of the elastic member 11. When the driving of the driving member 2 returns to normal, the elastic member 11 releases the elastic potential energy and pushes the linkage member 6 to the second position.

[0081] Please refer to the attached drawings of the specification Figure 2 The second shaft 4 is also drivingly connected to a connecting shaft 10 through an output shaft 7. One end of the output shaft 7 facing away from the valve body extends and passes through the substrate 1. On the other side of the substrate 1, there is a first gear coaxial with the output shaft 7. The first gear meshes with a second gear, and the second gear is coaxially connected to the connecting shaft 10. A feedback device 16 is provided at one end of the connecting shaft 10 facing away from the second gear. The angle of rotation of the valve body is calculated by the angle of rotation of the connecting shaft 10, so that the operator can observe the change in the opening degree of the valve body in real time.

[0082] Please refer to the attached drawings of the specification Figure 1 and the attached Figure 9 On both sides of the substrate 1 along its thickness direction, there are a first half-shell 12 and a second half-shell 13 respectively. The first half-shell 12 and the second half-shell 13 clamp and fix the substrate 1, and a sealing ring is provided around the edge of the substrate 1 to ensure the sealing performance of the valve opening adjusting device. The driving member 2 is arranged between the first half-shell 12 and the member. There is also an installation groove on the substrate 1. A first gear and a second gear that mesh with each other are arranged in the installation groove. The control component 8 can specifically be a control board. The control component 8 is covered on the installation groove to seal the inner cavity of the installation groove and prevent foreign objects from entering the installation groove and affecting the meshing of the first gear and the second gear. In addition, an energy supply device can be provided on the side of the control component 8 facing away from the substrate 1. The energy supply device can specifically be the external power supply described above. The energy supply device is electrically connected to the driving member 2, the Hall sensor, and the control component 8 to provide electrical energy.

[0083] An observation window is provided at a position corresponding to the first half-shell 12 and the feedback device 16. A plurality of heat dissipation fins 14 are provided on the side wall of the second half-shell 13. The heat dissipation fins 14 are used to guide the heat released during the operation of the driving member 2, so that each component works in a suitable environment. In addition, a connection hole 15 is provided at a position corresponding to the second half-shell 13 and the insertion groove 62. The connection hole 15 allows an external tool to enter the second half-shell 13 and complete the insertion with the linkage member 6.

[0084] This application also provides a valve assembly, including the valve opening adjusting device as described above. The valve body of the valve opening adjusting device is used to control the flow rate in the pipeline. The valve assembly also includes a fastening device that can fix the valve opening adjusting device to the pipeline. Its specific structure can refer to the prior art and will not be elaborated here.

[0085] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0086] In this article, specific examples are used to illustrate the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principles of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A valve opening adjustment device, characterized in that, include: substrate(1); A driving member (2), provided on the substrate (1), comprising a driving shaft (21); A first shaft (3) is in transmission connection with the drive shaft (21) and is provided with a sliding chamber (31), wherein the sliding chamber (31) is provided with a slot (311); A second shaft (4) is provided with an adapting groove (41) at one end thereof, wherein the adapting groove (41) and the clamping groove (311) form a through space (5); The linkage member (6) is provided with an adapting tooth (61), and the adapting tooth (61) is movably arranged in the through space (5). When in a first position, the adapting tooth (61) is in transmission connection with the adapting groove (41); when in a second position, the axial ends of the adapting tooth (61) are respectively in transmission connection with the clamping groove (311) and the adapting groove (41); An output shaft (7) is transmission-connected to the second shaft (4), and a valve body is provided at the end of the output shaft (7) facing away from the second shaft (4); A control assembly (8) coupled to the driving member (2) is used to control the driving member (2) to rotate to a preset angle according to a received control signal, so that the output shaft (7) drives the valve body to rotate to adjust the flow rate; and is also used to execute a preset action when the driving member (2) fails to drive; A Hall sensor is provided at the drive shaft (21), the control component (8) is connected to the alarm component, the Hall sensor is electrically connected to the control component (8), the Hall sensor is used to detect the actual rotation angle signal value of the drive shaft (21), and feeds back the detected actual rotation angle signal value to the control component (8), the control component (8) compares the actual rotation angle with the preset angle, and if the difference between the two exceeds the preset difference, the control component (8) determines that the drive of the drive member (2) has failed, and the control component (8) controls the alarm component to issue an alarm; An electromagnet is provided inside the second shaft (4), and the electromagnet is located at one end of the adapting slot (41) away from the card slot (311). The electromagnet is electrically connected to the control component (8). When the control component (8) determines that the driving of the driving member (2) has failed, it energizes the electromagnet, and the electromagnet generates magnetism. The end of the linkage member (6) facing the adapting slot (41) is provided with a magnetic pole. The magnetic pole of the linkage member (6) and the magnetism generated by the electromagnet are opposite in nature, so that the linkage member (6) is attracted to the first position. An elastic member (11) is provided in the adapting groove (41), and the elastic member (11) extends along the axial direction of the second shaft (4). Two ends of the elastic member (11) respectively abut against the inner wall of the adapting groove (41) and the linkage member (6). The elastic member (11) is used to make the linkage member (6) tend to be in the second position. The sliding chamber (31) extends along the axis of the first shaft (3) and penetrates through both ends of the first shaft (3). One end of the linkage member (6) facing away from the mating teeth (61) is provided with an insertion slot (62) for an external tool to be inserted and fitted. By the cooperation of the external tool and the insertion slot (62), a rotational torque is applied to the external tool to rotate the linkage member (6) in the first position. One of the inner wall of the mating slot (41) and the linkage member (6) is provided with a prompting device (91), and the prompting device (91) is configured such that when the linkage member (6) moves from the second position to the first position, the prompting device (91) is triggered and gives a prompt; and / or The inner wall of the insertion slot (62) is provided with a prompting device (92), and the prompting device (92) is configured such that when the external tool extends into the insertion slot (62) and is installed in place, the prompting device (92) is triggered and gives a prompt. The linkage member (6) includes a rod body (63). One end of the rod body (63) is provided with the mating teeth (61). The rod body (63) is slidably disposed in the sliding chamber (31). There is a shoulder (51) between one end of the through space (5) facing away from the mating slot (41) and the sliding chamber (31) to limit the sliding of the mating teeth (61) into the sliding chamber (31).

2. The valve opening adjustment device according to any one of claims 1, characterized in that, The first shaft (3) is further provided with a receiving chamber (32) communicating with the sliding chamber (31). The receiving chamber (32) is located at one end of the card slot (311) facing away from the sliding chamber (31). One end of the second shaft (4) provided with the mating slot (41) is rotatably disposed in the receiving chamber (32).

3. The valve opening degree adjusting device according to claim 2, wherein The outer side wall of the second shaft (4) is provided with a radial protrusion (42), and the radial protrusion (42) abuts against the end face of the receiving chamber (32).

4. The valve opening adjustment device according to any one of claims 1-3, characterized in that The drive shaft (21) and the output shaft (7) are parallel and non - collinear, and both are arranged in a direction perpendicular to the plane where the substrate (1) is located.

5. The valve opening degree adjusting device according to claim 4, characterized in that, The second shaft (4) is also drivingly connected to a connecting shaft (10). The connecting shaft (10) is parallel and non - collinear with respect to the drive shaft (21) and the output shaft (7). The connecting shaft (10) and the output shaft (7) are located on different sides of the substrate (1).

6. A valve assembly, characterized in that, It includes a valve opening degree adjusting device as described in any one of claims 1 - 5 above.

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