Bypass valve actuator airtightness and stroke comprehensive test equipment and method

Abstract

The invention relates to an air tightness and stroke comprehensive test device and method for a bypass valve actuator, and relates to the technical field of air tightness and stroke detection devices. Comprising a detection platform which is provided with an installation clamping groove. The detector is used for carrying out air tightness test and stroke test on the bypass valve actuator; the restoration positioning assembly is used for correcting the position of the bypass valve actuator before testing, and the restoration positioning assembly comprises a restoration clamping plate and a positioning supporting plate; according to the device, the two-dimensional code on the bypass valve actuator can be detected, manpower is saved, circle drawing and marking can be carried out on the bypass valve actuator, the mark is large, the unqualified bypass valve actuator is effectively prevented from flowing into a qualified area, and better use experience is brought to a user; and secondly, the positions of the bypass valve actuators can be automatically and synchronously corrected through the correction positioning assembly, so that the detection efficiency of the bypass valve actuators is improved, and the accuracy of a detection result is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness and stroke detection equipment, and in particular to an air tightness and stroke comprehensive testing device and method for a bypass valve actuator. Background Art

[0002] A bypass valve actuator is a device used to control a bypass valve, usually an automatic actuator, used to open or close the bypass valve to control fluid flow. The bypass valve actuator usually operates the bypass valve according to a preset control signal, and can achieve remote control and automatic control. This actuator is often used in fluid control systems in the industrial field to improve the efficiency and accuracy of the system.

[0003] For example, the Chinese patent with patent number CN209027493U discloses a bypass valve actuator detection device, including a power supply, a base plate, a fixing component, a measuring component, a control system, a result reporting component and an inflation component; the fixing component, the measuring component and the inflation component are fixed on the base plate, the control system is electrically connected to the measuring component, the result reporting component and the inflation component respectively, and the power supply is used to supply power to the electrical components in the bypass valve actuator detection device; the fixing component includes a first receiving groove and a second receiving groove. The operator places the bypass valve actuator on the fixing component, the front end of the bypass valve actuator is placed in the first receiving groove, and the rear end of the bypass valve actuator is placed in the second receiving groove, so as to fix the bypass valve actuator.

[0004] However, the above device also has the following problems:

[0005] 1. First of all, the above-mentioned prior art can fix the bypass valve actuator, but it cannot correct the position of the bypass valve actuator. The prior art usually requires manual placement of the bypass valve actuator in a designated area or a designated groove, and then fixes it. During this process, manual placement of the bypass valve actuator will cause the bypass valve actuator to shift. When performing an airtightness test on it, it is impossible to ensure that the detection device and the air inlet of the bypass valve actuator are accurately connected, which can easily lead to air leakage at the interface of the bypass valve actuator or poor connection stability during testing, thereby affecting the accuracy of its test results.

[0006] 2. After the bypass valve actuator is assembled, it is necessary to test its air tightness and stroke to ensure whether the bypass valve actuator is qualified. At present, the air tightness and stroke of multiple bypass valve actuators are often tested at one time. When an unqualified bypass valve actuator appears, a marking pen is often used to automatically mark the bypass valve actuator to distinguish it from a qualified bypass valve actuator. However, the dot marks are small, and unqualified bypass valve actuators are often flowed into the qualified area. In addition, manual inspection is often used to check whether the identification QR code on the bypass valve actuator is affixed or whether it is affixed correctly, which wastes manpower and brings a bad user experience to users.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing testing equipment. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a device and method for comprehensive testing of air tightness and stroke of a bypass valve actuator, which adopts the following technical solutions:

[0009] In the first aspect, a comprehensive test device for the air tightness and stroke of a bypass valve actuator includes a detection platform, the detection platform is composed of a base plate and a frame, a working area for installing the bypass valve actuator is formed on the detection platform, and an installation slot is also provided on the detection platform.

[0010] Detector, perform air tightness test and stroke test on the bypass valve actuator.

[0011] The correction and positioning component is used to correct the position of the bypass valve actuator before testing. The correction and positioning component includes two parallel correction clamps arranged on the detection platform and a positioning support plate for controlling the bypass valve actuator to perform rotational positioning.

[0012] The positioning support plates are symmetrically distributed along the width direction of the detection platform, and positioning slots are provided on the positioning support plates.

[0013] Preferably, the two correction splints are distributed in parallel on the detection platform, and linkage rods are hinged at both ends of the two correction splints, so that the correction splints and the linkage rods are distributed in a parallelogram structure, and a linkage column is provided in the middle of the two linkage rods, and the linkage column is arranged on the inner wall of the detection platform through a bracket.

[0014] Preferably, a linkage gear is installed on the linkage column on one side of the correction splint, a linkage rack for controlling its rotation is meshed on the side wall of the linkage gear, and an electric push rod arranged on the detection platform is installed on the linkage rack.

[0015] Preferably, the bottoms of the two positioning plates are commonly connected to a driving ring, which is slidably arranged inside the detection platform along the height direction of the detection platform, and a lifting push rod is provided inside the detection platform, and the output end of the lifting push rod is upward and slidably connected to a driving plate, the driving ring is rotatably arranged on the driving plate, and a synchronization plate is connected between several driving plates.

[0016] The driving plate is provided with a driving motor, the output end of which faces upward and is connected with a driving gear meshing with the driving ring, and a synchronous belt is sleeved between the driving gears.

[0017] Preferably, a positioning slot is provided at the top of the positioning support plate, a positioning trigger plate is provided in the positioning slot for sliding along the height direction, a trigger compression spring is connected between the positioning trigger plate and the inner wall of the positioning support plate, an active trigger column is provided on the positioning trigger plate, a passive trigger column is installed on the inner wall of the positioning support plate, wires are connected to the active trigger column and the passive trigger column, and the ends of the wires away from the active trigger column and the passive trigger column are provided on the driving motor to control the rotation of the driving motor.

[0018] Preferably, opposite sides of the two positioning support plates are connected with a placement spring, the placement spring is connected with a placement plate, and the placement plate is slidably disposed on the positioning support plate.

[0019] Preferably, the detector comprises a detection cylinder, a guide block, a detection spring, a corrugated hose and a displacement sensor; the detection cylinder is fixed on the detection platform, and the piston rod end of the detection cylinder is arranged on the upper surface of the guide block.

[0020] One end of the detection spring and one end of the corrugated hose are both connected to the guide block, the detection spring is arranged in the corrugated hose, and the other end of the detection spring and the other end of the corrugated hose are both connected to the upper surface of the displacement sensor.

[0021] The guide block is provided with a through hole, and the displacement sensor is slidably inserted in the through hole.

[0022] Preferably, the detection platform is also provided with an inflatable component, which includes an inflatable cylinder arranged on the detection platform, an inflatable head is provided on the output end of the inflatable cylinder, an air pipe is provided at one end of the inflatable head, and an end of the air pipe away from the inflatable head is connected to the air bin.

[0023] Preferably, a plurality of barcode scanners are evenly spaced on the detection platform.

[0024] In a second aspect, the present invention also relates to a method for comprehensive testing of air tightness and stroke of a bypass valve actuator, and the method for comprehensive testing of air tightness and stroke of a bypass valve actuator is as follows:

[0025] S1. Product placement: First, prepare a number of bypass valve actuators to be sampled and tested, and then randomly place the prepared bypass valve actuators in the placement slots on the test platform;

[0026] S2. Initial product calibration: After the product is placed in the working area of ​​the test platform, the calibration clamp of the calibration assembly first calibrates the bypass valve actuator to ensure that the bypass valve actuator to be tested is in the same position;

[0027] S3, Secondary correction of the product: Then adjust the positioning support plate of the positioning assembly to make the final adjustment to the position of the bypass valve actuator to ensure that the air inlet of the bypass valve actuator is facing the same position;

[0028] S4, product test: the detector then performs air tightness test and stroke test on the bypass valve actuator;

[0029] S5. Product marking: Mark the unqualified products during the testing process and collect the unqualified products in a unified manner.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The present application utilizes a marking mechanism to detect the QR code on the bypass valve actuator, saving manpower, and utilizes the marking mechanism to draw a circle mark on the bypass valve actuator. The mark is large, which effectively prevents unqualified bypass valve actuators from flowing into the qualified area, bringing a better user experience to users.

[0032] 2. The present invention can simultaneously perform automated position correction operations on a plurality of bypass valve actuators through the correction and positioning assembly, thereby ensuring that the bypass valve actuators can be evenly distributed in the device, which can effectively improve the efficiency of bypass valve actuator detection and ensure the accuracy of detection results; further, the correction and positioning assembly can also perform position correction on bypass valve actuators of different sizes, thereby improving the applicability of the equipment.

[0033] 3. The detector of the present invention can perform reciprocating air tightness detection and stroke detection on the bypass valve actuator, ensuring that the air tightness detection and the stroke detection are performed synchronously, which greatly improves the detection efficiency of the bypass valve actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0036] Figure 2 It is a structural schematic diagram of the bypass valve actuator of the present invention.

[0037] Figure 3 It is a schematic diagram of the first viewing angle structure of the initial correction in the correction positioning component of the present invention.

[0038] Figure 4 It is a schematic diagram of the second viewing angle structure of the initial correction in the correction positioning component of the present invention.

[0039] Figure 5 It is a schematic diagram of the first viewing angle structure of the secondary correction in the correction positioning component of the present invention.

[0040] Figure 6 It is a schematic diagram of the second viewing angle structure of the secondary correction in the correction positioning component of the present invention.

[0041] Figure 7 It is a schematic diagram of the structure between the positioning support plate and the positioning slot of the present invention.

[0042] Figure 8 It is a schematic diagram of the structure between the inflatable component and the marking mechanism of the present invention from a first perspective.

[0043] Fig. 9 It is a schematic diagram of the structure between the inflatable component and the marking mechanism of the present invention from a second viewing angle.

[0044] Fig.10 It is a schematic diagram of the structure of the detector of the present invention.

[0045] Fig.11 It is a schematic structural diagram of the marking mechanism of the present invention from a first viewing angle.

[0046] Fig.12 It is a schematic structural diagram of the marking mechanism of the present invention from a second viewing angle.

[0047] Fig.13 It is a flow chart of the comprehensive test method of air tightness and stroke of the bypass valve actuator of the present invention.

[0048] Description of reference numerals:

[0049] 10. Valve body; 11. Actuator rod; 12. Connector; 13. Air inlet; 1. Detection platform; 2. Detector; 3. Alignment and positioning assembly; 30. Alignment clamp; 31. Positioning support plate; 32. Positioning slot; 33. Linkage rod; 34. Linkage column; 35. Bracket; 36. Linkage gear; 37. Linkage rack; 38. Electric push rod; 40. Drive ring; 41. Lifting push rod; 42. Drive plate; 43. Drive motor; 39. Drive gear; 44. Synchronous belt; 45. Synchronous plate; 310. Positioning trigger plate; 311. Trigger plate Compression spring; 312, active trigger column; 313, passive trigger column; 20, detection cylinder; 21, guide block; 22, detection spring; 23, corrugated hose; 24, displacement sensor; 5, inflatable component; 50, inflatable cylinder; 51, inflatable head; 52, air pipe; 53, air chamber; 6, marking mechanism; 60, support block; 61, marking cylinder; 62, marking motor; 63, round plate; 64, hollow cylinder; 65, locking piece; 70, placement spring; 71, placement plate; 80, adjustment column; 81, adjustment frame; 9, barcode scanner. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1-Figure 13 This application is described in further detail.

[0051] The embodiment of the present application discloses a device and method for comprehensive testing of air tightness and stroke of a bypass valve actuator; the device and method for comprehensive testing of air tightness and stroke of a bypass valve actuator are mainly used in the process of comprehensive testing of air tightness and stroke of a bypass valve actuator.

[0052] Then the following problems still exist in the prior art: first, the prior art can fix the bypass valve actuator, but it cannot correct the position of the bypass valve actuator. The prior art usually requires manual placement of the bypass valve actuator in a designated area and then fixation. During this process, manual placement of the bypass valve actuator will cause the bypass valve actuator to shift. When performing an air tightness test on it, it is impossible to ensure that the detection device and the air inlet 13 of the bypass valve actuator are accurately connected, which can easily lead to air leakage at the interface of the bypass valve actuator during testing, thereby affecting the accuracy of its test results.

[0053] After the bypass valve actuator is assembled, it is necessary to test its air tightness and stroke to ensure whether the bypass valve actuator is qualified. At present, the air tightness and stroke of multiple bypass valve actuators are often tested at one time. When an unqualified bypass valve actuator appears, a marking pen is often used to automatically mark the bypass valve actuator with dots to distinguish it from a qualified bypass valve actuator. However, the dot marks are small, and unqualified bypass valve actuators are often flowed into the qualified area. In addition, manual inspection is often used to check whether the identification QR code on the bypass valve actuator is affixed or affixed correctly, which wastes manpower and brings a bad user experience to users.

[0054] Therefore, the present application proposes a comprehensive test device for the air tightness and stroke of a bypass valve actuator to solve the above problems.

[0055] See also Figure 2 , which is a schematic diagram of the structure of the bypass valve actuator in the present application; further, the present application relates to a bypass valve actuator.

[0056] The bypass valve actuator is composed of a valve body 10, an actuator rod 11, a connecting piece 12 and an air inlet 13, and is usually made of cast iron, stainless steel and other materials.

[0057] Embodiment 1:

[0058] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is a schematic diagram of the main structure for testing the bypass valve actuator in this application; a comprehensive test equipment for air tightness and stroke of the bypass valve actuator includes a testing platform 1, the testing platform 1 is composed of a base plate and a frame, and a working area for installing the bypass valve actuator is formed on the testing platform 1.

[0059] The bottom and frame of the detection platform 1 are existing known structures, and the working area formed by them is specially used for placing the bypass valve actuator and various functional tests.

[0060] Detector 2, performs air tightness test and stroke test on the bypass valve actuator.

[0061] The correction and positioning component 3 is used to correct the position of the bypass valve actuator before testing to facilitate its air tightness detection and stroke detection. The correction and positioning component 3 includes two parallel correction clamps 30 arranged on the detection platform 1 and a positioning support plate 31 for controlling the bypass valve actuator to perform rotational positioning.

[0062] The positioning plates 31 are symmetrically distributed along the width direction of the detection platform 1 .

[0063] The correction and positioning component 3 adjusts the angle and direction of the bypass valve actuator. When the sampled bypass valve actuator is subjected to an air tightness test and a stroke test, the correction clamp 30 is first used to squeeze the connecting piece 12 on the bypass valve actuator so that the connecting piece 12 on the bypass valve actuator is distributed parallel to the length direction of the detection platform 1. Then the positioning support plate 31 detects the air inlet 13 of the corrected bypass valve actuator. After the position of the air inlet 13 is detected, the bypass valve actuator is rotated to ensure that the air inlet 13 of the bypass valve actuator is uniformly oriented toward the position of the inflatable component 5, so as to facilitate the subsequent connection between the inflatable component 5 and the air inlet 13 of the bypass valve actuator.

[0064] When testing the bypass valve actuator, the valve bodies 10 of the three bypass valve actuators are sequentially placed in the mounting slots provided on the testing platform 1; then the positioning assembly 3 is started to correct the positions of the three bypass valve actuators so that their positions and angles are consistent, as shown below:

[0065] Reference Figure 3 and Figure 4 As shown, it is a structural schematic diagram of the working of the correction splint 30; specifically, the two correction splints 30 are distributed in parallel on the detection platform 1, and the two ends of the two correction splints 30 are respectively hinged with linkage rods 33, so that the correction splints 30 and the linkage rods 33 are distributed in a parallelogram structure, and a linkage column 34 is provided in the middle of the two linkage rods 33, and the linkage column 34 is arranged on the inner wall of the detection platform 1 through a bracket 35.

[0066] A linkage gear 36 is installed on the linkage column 34 on one side of the alignment splint 30 , and a linkage rack 37 for controlling the rotation of the linkage gear 36 is meshed with the side wall thereof, and an electric push rod 38 provided on the detection platform 1 is installed on the linkage rack 37 .

[0067] In the initial state, the linkage rack 37 and the linkage gear 36 on the output end of the electric push rod 38 are in a separated state.

[0068] Secondly, the return clamping plate 30 is located outside the connecting member 12 of the bypass valve actuator; and the return clamping plate 30 is located behind the connecting member 12 of the bypass valve actuator.

[0069] During specific implementation, the electric push rod 38 is started, and the output end of the electric push rod 38 controls the linkage rack 37 to move in the direction of the linkage gear 36. At this time, the linkage gear 36 rotates clockwise, and the linkage gear 36 drives the corresponding linkage rod 33 to rotate clockwise with the linkage column 34 as the center through the linkage column 34. At this time, the linkage rod 33 drives the parallel alignment clamps 30 on both sides thereof to approach each other. In the process of approaching each other, the alignment clamps 30 squeeze the connecting piece 12 of the bypass valve actuator, so that the bypass valve actuator rotates passively until the two connecting pieces 12 of the bypass valve actuator are parallel to the length direction of the detection platform 1, that is, the initial position correction of the bypass valve actuator is completed.

[0070] It is particularly important to note that the movement trajectory of the correction clamping plate 30 is in an arc shape during the process of approaching each other. Not only do they approach each other, but they are also in a sliding and misaligned state during the process of approaching each other. The purpose is to improve the accuracy of the position correction of the bypass valve actuator.

[0071] When the two connecting parts 12 of the bypass valve actuator are perpendicular to the length direction of the detection platform 1, the alignment clamp 30 directly squeezes them, which will not only prevent the bypass valve actuator from rotating, but also may cause the connecting parts 12 of the bypass valve actuator to deform due to external force, making it impossible to connect with other components.

[0072] The present application can apply a horizontal force to the bypass valve actuator through the sliding correction clamp 30. When the two connecting parts 12 of the bypass valve actuator are perpendicular to the length direction of the detection platform 1, the angle between the two connecting parts 12 of the bypass valve actuator and the length direction of the detection platform 1 is first changed. In this way, when it is squeezed, the position of the bypass valve actuator can be corrected faster and better.

[0073] After the position of the bypass valve actuator is initially corrected, the air inlet 13 of the bypass valve actuator will have two situations. In the first situation, the air inlet 13 of the bypass valve actuator faces the direction of the inflatable component 5; in the second situation, the air inlet 13 of the bypass valve actuator is away from the direction of the inflatable component 5. Therefore, it is also necessary to position the air inlet 13 of the bypass valve actuator to ensure that the air inlet 13 of the bypass valve actuator faces the direction of the inflatable component 5, as shown below:

[0074] See also Figure 5 and Figure 6 As shown, the bottoms of the two positioning plates 31 are commonly connected to a driving ring 40, which is slidably arranged inside the detection platform 1 along the height direction, and a lifting push rod 41 is provided inside the detection platform 1, and the output end of the lifting push rod 41 is upward and slidably connected to a driving plate 42, and the driving ring 40 is rotatably arranged on the driving plate 42.

[0075] A driving motor 43 is disposed on the driving plate 42 . The output end of the driving motor 43 faces upward and is connected to a driving gear 39 that meshes with the driving ring 40 .

[0076] A positioning slot 32 is provided at the top of the positioning support plate 31, and a positioning trigger plate 310 is slidably provided in the positioning slot 32 along the height direction. A trigger compression spring 311 is connected between the positioning trigger plate 310 and the inner wall of the positioning support plate 31, and an active trigger column 312 is provided on the positioning trigger plate 310. A passive trigger column 313 is installed on the inner wall of the positioning support plate 31. Both the active trigger column 312 and the passive trigger column 313 are connected to energized wires, and the ends of the wires away from the active trigger column 312 and the passive trigger column 313 are provided on the driving motor 43 to control the forward and reverse rotation of the driving motor 43.

[0077] It should be noted that the driving motor 43 in the present application is a known device, and the driving motor 43 can perform intermittent rotation of 90 degrees each time.

[0078] During specific implementation, the lifting push rod 41 is started, and the output end of the lifting push rod 41 drives the driving plate 42 to move synchronously upward. At this time, the driving ring 40 on the driving plate 42 and the two symmetrically distributed positioning plates 31 move upward synchronously until the positioning slot 32 of the positioning plate 31 contacts the air inlet 13 of the bypass valve actuator. Then, the positioning trigger plate 310 in the positioning slot 32 is squeezed by the air inlet 13 of the bypass valve actuator, so that the positioning trigger plate 310 and the active trigger column 312 at its upper end move in the direction of the passive trigger column 313 until the active trigger column 312 contacts the passive trigger column 313. At this time, the driving motor 43 is energized and starts to work, and the positioning plate 31 is controlled by the driving plate 42 to drive the bypass valve actuator to rotate ninety degrees.

[0079] After the active trigger column 312 and the passive trigger column 313 on the positioning support plate 31, it can be detected that the air inlet 13 of the bypass valve actuator is facing the end away from the inflatable component 5. At this time, the drive motor 43 is started, and the drive motor 43 starts to rotate to drive the bypass valve actuator to rotate, so that the air inlet 13 of the bypass valve actuator rotates to the end close to the inflatable component 5.

[0080] When the positioning support plate 31 moves toward the air inlet 13 of the bypass valve actuator, the active trigger column 312 on the positioning support plate 31 is not in contact with the passive trigger column 313. At this time, the drive motor 43 does not need to be started, and it can be known that the air inlet 13 of the bypass valve actuator is just facing the direction of the inflatable component 5.

[0081] Finally, the lifting push rod 41 moves downward, driving the driving ring 40 and the positioning support plate 31 away from the bypass valve actuator, so as to facilitate the subsequent air tightness test and stroke test of the bypass valve actuator.

[0082] After the bypass valve actuator position is corrected, the internal air tightness test can be performed as follows:

[0083] See also Figure 7 , Figure 8 and Fig. 9 As shown, an inflatable component 5 is also provided on the detection platform 1. The inflatable component 5 includes an inflatable cylinder 50 arranged on the detection platform 1. An inflatable head 51 is provided on the output end of the inflatable cylinder 50. An air pipe 52 is provided at one end of the inflatable head 51. The end of the air pipe 52 away from the inflatable head 51 is connected to an air tank 53.

[0084] It should be noted that the air chamber 53 is a known structure that can transport air.

[0085] The inflation cylinder 50 is started, and the output end of the inflation cylinder 50 drives the inflation head 51 to move toward the corrected bypass valve actuator until the inflation head 51 is inserted into the air inlet 13 of the bypass valve actuator. At this time, the air chamber 53 transports the gas inside it to the inside of the bypass valve actuator through the air pipe 52 and the inflation head 51.

[0086] If the actuator rod 11 of the bypass valve actuator can move upward, and further, after the actuator rod 11 in the bypass valve actuator moves upward to the maximum stroke, it will not drop within a certain period of time, which means that its air tightness is good.

[0087] After the air inlet 13 of the bypass valve actuator is connected to the inflation head 51, a separate air tightness test can be performed on it. Similarly, in order to improve the efficiency of the test, a stroke test can also be performed, as shown below.

[0088] Reference Fig. 9 As shown, the detector 2 includes a detection cylinder 20, a guide block 21, a detection spring 22, a corrugated hose 23 and a displacement sensor 24. The detection cylinder 20 is fixed on the frame, and the piston rod end of the detection cylinder 20 is fixed on the upper surface of the guide block 21.

[0089] One end of the detection spring 22 and one end of the corrugated hose 23 are both fixed on the guide block 21 , the detection spring 22 is arranged in the corrugated hose 23 , and the other end of the detection spring 22 and the other end of the corrugated hose 23 are both fixed on the upper surface of the displacement sensor 24 .

[0090] A through hole is formed on the guide block 21 , and the displacement sensor 24 is slidably inserted in the through hole.

[0091] After the inflation head 51 is connected to the air inlet 13 of the bypass valve actuator, the detection cylinder 20 is started, and the output end of the detection cylinder 20 controls the displacement sensor 24 to drop a specified distance, so that the displacement sensor 24 fits together with the actuator rod 11. At this time, the piston rod of the inflation cylinder 50 drives the inflation head 51 to be sleeved on the air inlet 13. The inflation head 51 first fills the bypass valve actuator with specified gas. Under the action of the internal components of the bypass valve actuator body 10, the actuator rod 11 drives the displacement sensor 24 to move upward. When the upward distance of the displacement sensor 24 does not reach the set value, it means that the air tightness of the bypass valve actuator is unqualified, and the buzzer alarms.

[0092] When the upward distance of the displacement sensor 24 reaches the set value, the inflation head 51 continues to inflate air into the bypass valve actuator, and under the action of the actuator rod 11, the spring and the corrugated hose 23 are driven upward. When it moves to the maximum height, the inflation head 51 is deflated, and the actuator rod 11 is lowered under the reaction of the spring. During the inflation and deflation process of the inflation head 51, the stroke of the bypass valve actuator is detected; when the displacement sensor 24 detects that the stroke is unqualified, the buzzer alarms; when the displacement sensor 24 detects that the stroke is qualified, the buzzer lights up, indicating that the bypass valve actuator is qualified.

[0093] Embodiment 2:

[0094] Reference Fig.11 and Fig.12 As shown, on the basis of Example 1, in order to further ensure the efficiency of the bypass valve actuator performance test, the present application also proposes a marking mechanism 6, which is used to detect the QR code on the bypass valve actuator, saving manpower, and using the marking mechanism 6 to mark the bypass valve actuator with a circle. The mark is large, which effectively prevents unqualified bypass valve actuators from flowing into the qualified area, thereby bringing a better user experience to the user.

[0095] The marking mechanism 6 includes a support block 60 , a marking cylinder 61 , a marking motor 62 , a circular plate 63 , a hollow cylinder 64 and a locking member 65 . The support block 60 is fixed on the upper surface of the base plate, and the cylinder barrel of the marking cylinder 61 is fixed on the outer wall of the support block 60 .

[0096] The piston rod end of the marking cylinder 61 is fixed on the outer wall of the marking motor 62 , the output shaft of the marking motor 62 is fixed on the circular plate 63 , one end of the hollow cylinder 64 is arranged on the circular plate 63 , and the locking piece 65 threadably penetrates the hollow cylinder 64 .

[0097] It should be noted that a marking pen is inserted into the hollow cylinder 64 for marking, and the marking pen is a known structure.

[0098] Similarly, the marking color can be changed by replacing the marking pens of different colors. When performing performance testing on bypass valve actuators with different coatings, the marking can be better ensured to be eye-catching, and omissions can be avoided when screening unqualified products.

[0099] In specific implementation, when the displacement sensor 24 detects that the stroke of the bypass valve actuator is unqualified, the marking motor 62 is started, and the marking motor 62 drives the circular plate 63 and the hollow cylinder 64 to rotate. At this time, the marking pen on the hollow cylinder 64 rotates synchronously, so that the marking pen can draw circles on the surface of the bypass valve actuator. The marking mechanism 6 can draw a circle on the bypass valve actuator, and the mark is large, which effectively prevents unqualified bypass valve actuators from flowing into the qualified area, and brings a better user experience to the user.

[0100] Embodiment three:

[0101] Look again Fig.12 As shown, two adjustment frames 81 are provided on the circular plate 63 , and adjustment posts 80 are rotatably provided on the two adjustment frames 81 , and the hollow cylinder 64 is installed on the adjustment posts 80 by means of threaded connection.

[0102] Rotating the adjustment column 80 can adjust the position of the hollow cylinder 64 on the circular plate 63. When the position of the hollow cylinder 64 is farther away from the center of the circular plate 63, the mark drawn by the marking pen on the upper end of the hollow cylinder 64 becomes larger; when the position of the hollow cylinder 64 is closer to the center of the circular plate 63, the mark drawn by the marking pen on the upper end of the hollow cylinder 64 becomes smaller, thereby achieving adjustment of the mark size, so that when conducting comprehensive air tightness and stroke tests on bypass valve actuators of different sizes, the size of the mark can be adaptively changed to improve the applicability of the equipment.

[0103] See also Fig.13 The comprehensive test method for the air tightness and stroke of the bypass valve actuator is as follows:

[0104] S1. Product placement: First, prepare a number of bypass valve actuators to be sampled and tested, and then randomly place the prepared bypass valve actuators in the placement slots on the test platform.

[0105] S2. Initial correction of the product: After the product is placed in the working area of ​​the test platform, the electric push rod 38 is started. The electric push rod 38 controls the parallel alignment clamps 30 on both sides thereof to approach each other through the linkage gear 36. The alignment clamps 30 squeeze the connecting piece 12 of the bypass valve actuator in the process of approaching each other, thus completing the initial position correction of the bypass valve actuator and ensuring the consistency of the position of the bypass valve actuator to be tested.

[0106] S3. Secondary correction of the product: Then, the positioning support plate 31 of the positioning assembly 3 is corrected to make a final adjustment to the position of the bypass valve actuator, and the lifting push rod 41 is started. The lifting push rod 41 drives the positioning support plate 31 to move upward. When the active trigger column 312 and the passive trigger column 313 on the positioning support plate 31 are aligned, it can be detected that the air inlet 13 of the bypass valve actuator is facing the end away from the inflatable component 5. At this time, the drive motor 43 is started, and the drive motor 43 starts to rotate to drive the bypass valve actuator to rotate, so that the air inlet 13 of the bypass valve actuator rotates to the end close to the inflatable component 5, ensuring that the air inlet 13 of the bypass valve actuator is facing the same position.

[0107] S4, product test: Then the detection cylinder 20 is started, and the output end of the detection cylinder 20 controls the displacement sensor 24 to drop a specified distance, so that the displacement sensor 24 is fitted together with the actuator rod 11. At this time, the piston rod of the inflation cylinder 50 drives the inflation head 51 to be sleeved on the air inlet 13. The inflation head 51 first works to fill the bypass valve actuator with specified gas. Under the action of the internal components of the bypass valve actuator body 10, the actuator rod 11 drives the displacement sensor 24 to move upward. When the upward distance of the displacement sensor 24 does not reach the set value, it means that the air tightness of the bypass valve actuator is unqualified, and the buzzer alarms; when the displacement sensor 24 detects that the stroke is qualified, the buzzer lights up, indicating that the bypass valve actuator is qualified.

[0108] S5. Product marking: When the displacement sensor 24 detects that the stroke of the bypass valve actuator is unqualified, the marking motor 62 is started, and the marking motor 62 drives the circular plate 63 and the hollow cylinder 64 to rotate. At this time, the marking pen on the hollow cylinder 64 rotates synchronously, so that the marking pen can draw circles on the surface of the bypass valve actuator. The marking mechanism 6 can draw a circle on the bypass valve actuator, and the mark is large, which effectively prevents unqualified bypass valve actuators from flowing into the qualified area, and brings a better user experience to the user.

[0109] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A comprehensive test device for air tightness and stroke of a bypass valve actuator, characterized in that: include, A detection platform (1), the detection platform (1) being composed of a base plate and a frame, a working area for installing a bypass valve actuator being formed on the detection platform (1), and a mounting slot being also provided on the detection platform (1); A detector (2) performs an air tightness test and a stroke test on the bypass valve actuator; A correction and positioning assembly (3) is used to correct the position of the bypass valve actuator before testing. The correction and positioning assembly (3) comprises two parallel correction clamping plates (30) arranged on the detection platform (1) and a positioning support plate (31) for controlling the bypass valve actuator to perform rotational positioning; The positioning support plates (31) are symmetrically distributed along the width direction of the detection platform (1), and positioning slots (32) are provided on the positioning support plates (31).

2. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: The two alignment clamps (30) are arranged in parallel on the detection platform (1), and linkage rods (33) are respectively hinged at both ends of the two alignment clamps (30), so that the alignment clamps (30) and the linkage rods (33) are arranged in a parallelogram structure, and linkage columns (34) are arranged in the middle of the two linkage rods (33), and the linkage columns (34) are arranged on the inner wall of the detection platform (1) through a bracket (35).

3. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 2, characterized in that: A linkage gear (36) is installed on a linkage column (34) on one side of the alignment clamp (30), a linkage rack (37) for controlling the rotation of the linkage gear (36) is meshed with the side wall of the linkage gear (36), and an electric push rod (38) provided on the detection platform (1) is installed on the linkage rack (37).

4. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: The bottoms of the two positioning support plates (31) are commonly connected to a driving ring (40), the driving ring (40) is slidably arranged inside the detection platform (1) along the height direction thereof, and a lifting push rod (41) is arranged inside the detection platform (1), the output end of the lifting push rod (41) is upwardly and slidably connected to a driving plate (42), the driving ring (40) is rotatably arranged on the driving plate (42), and a synchronization plate (45) is connected between a plurality of driving plates (42); The driving plate (42) is provided with a driving motor (43), the output end of the driving motor (43) is upward and connected to a driving gear (39) meshing with the driving ring (40), and a synchronous belt (44) is sleeved between the plurality of driving gears (39).

5. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: The top of the positioning support plate (31) is provided with a positioning slot (32), a positioning trigger plate (310) is slidably provided in the positioning slot (32) along the height direction, a trigger compression spring (311) is connected between the positioning trigger plate (310) and the inner wall of the positioning support plate (31), an active trigger column (312) is provided on the positioning trigger plate (310), a passive trigger column (313) is installed on the inner wall of the positioning support plate (31), the active trigger column (312) and the passive trigger column (313) are both connected with wires, and the ends of the wires away from the active trigger column (312) and the passive trigger column (313) are both provided on the driving motor (43) to control the rotation of the driving motor (43).

6. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: The opposite sides of the two positioning support plates (31) are both connected with a placement spring (70), the placement spring (70) is connected with a placement plate (71), and the placement plate (71) is slidably arranged on the positioning support plates (31).

7. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: The detector (2) comprises a detection cylinder (20), a guide block (21), a detection spring (22), a corrugated hose (23) and a displacement sensor (24); the detection cylinder (20) is fixed on the detection platform (1); and the end of the piston rod of the detection cylinder (20) is arranged on the upper surface of the guide block (21); One end of the detection spring (22) and one end of the corrugated hose (23) are both connected to the guide block (21), the detection spring (22) is arranged in the corrugated hose (23), and the other end of the detection spring (22) and the other end of the corrugated hose (23) are both connected to the upper surface of the displacement sensor (24); The guide block (21) is provided with a through hole, and the displacement sensor (24) is slidably inserted in the through hole.

8. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: The detection platform (1) is also provided with an inflatable component (5), the inflatable component (5) comprising an inflatable cylinder (50) arranged on the detection platform (1), an inflatable head (51) being provided at the output end of the inflatable cylinder (50), an air pipe (52) being provided at one end of the inflatable head (51), and an end of the air pipe (52) away from the inflatable head (51) being connected to an air bin (53).

9. The air tightness and stroke comprehensive testing equipment of a bypass valve actuator according to claim 1, characterized in that: A plurality of barcode scanners (9) are also arranged at equal intervals on the detection platform (1).

10. A method for comprehensive testing of air tightness and stroke of a bypass valve actuator, using a comprehensive testing device for air tightness and stroke of a bypass valve actuator as claimed in any one of claims 1 to 9, characterized in that: The comprehensive test method for air tightness and stroke of bypass valve actuator is as follows: S1. Product placement: First, prepare a number of bypass valve actuators to be sampled and tested, and then randomly place the prepared bypass valve actuators in the placement slots on the test platform; S2. Initial product calibration: After the product is placed in the working area of ​​the test platform, the calibration clamp (30) of the calibration positioning assembly (3) first calibrates the bypass valve actuator to ensure that the bypass valve actuator to be tested is in the same position; S3, secondary correction of the product: the positioning support plate (31) of the positioning assembly (3) is then adjusted to make a final adjustment to the position of the bypass valve actuator to ensure that the air inlet (13) of the bypass valve actuator is facing the same position; S4, product testing: the detector (2) then performs an air tightness test and a stroke test on the bypass valve actuator; S5. Product marking: Mark the unqualified products during the testing process and collect the unqualified products in a unified manner.

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