A valve sealing performance detection device and its usage method

Abstract

The present invention belongs to the technical field of valve detection, and particularly relates to a valve sealing detection device and its use method. The valve sealing detection device includes: a clamping mechanism, a detection tank, an inflation mechanism, a bearing plate, an adjustment mechanism, and a main frame. The clamping mechanism is used for hermetically clamping valve products; a detection liquid can be placed in the detection tank; the inflation mechanism is used for inflating the valve products hermetically clamped; the bearing plate is located above the detection tank, and multiple groups of clamping mechanisms are provided at the bottom of the bearing plate, and the clamping mechanisms can slide radially on the bearing plate; the adjustment mechanism is used for adjusting the position of the clamping mechanism in the radial direction of the bearing plate; a lifting mechanism is provided on the main frame, and the lifting mechanism is used for driving the bearing plate to move vertically. Compared with the prior art, the valve sealing detection device of the present invention can simultaneously perform sealing detection on multiple valves, and can simultaneously make obvious marks on unqualified valves, and it is not easy to confuse qualified valves with unqualified valves during the collection stage after the detection is completed.

Description

Technical Field

[0001] The present invention belongs to the technical field of valve detection, and particularly relates to a valve sealing detection device and a using method thereof. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters (temperature, pressure, and flow rate) of the transported medium. After the valve is processed, it needs to be subjected to a sealing detection to ensure that the valve can effectively prevent medium leakage during use. Currently, the main methods for detecting the sealing performance of valves include the bubble detection method, the helium mass spectrometry detection method, the ultrasonic detection method, etc., among which the bubble detection method is more commonly used.

[0003] During the current sealing detection of valves by the bubble detection method, generally, the valve is first clamped and sealed, then gas is filled into the valve, and then the valve is placed in the detection liquid. If bubbles are generated in the detection liquid, it indicates that the valve leaks and has poor sealing performance; otherwise, it indicates that the valve has good sealing performance. However, when the current detection equipment detects valves, it generally can only clamp and detect a single valve, that is, only one valve can be detected at a time, and the detection efficiency is relatively low. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned existing technical problems and provide a valve sealing detection device and a using method thereof. This valve sealing detection device can simultaneously detect the sealing performance of multiple valves, and at the same time, it can clearly mark the unqualified valves, and it is not easy to confuse the qualified valves with the unqualified valves during the collection stage after the detection is completed.

[0005] In view of this, the present invention provides a valve sealing detection device, including:

[0006] A clamping mechanism for hermetically clamping valve products;

[0007] A detection tank capable of containing a detection liquid;

[0008] An air inflation mechanism for inflating the valve products hermetically clamped;

[0009] A bearing plate located above the detection tank, and a plurality of groups of clamping mechanisms are provided at the bottom of the bearing plate, and the clamping mechanisms can slide radially on the bearing plate;

[0010] An adjustment mechanism for adjusting the position of the clamping mechanism in the radial direction of the bearing plate;

[0011] A main frame body, and a lifting mechanism is provided on the main frame body for driving the bearing plate to move vertically.

[0012] In this technical solution, multiple valve products are clamped below the carrier plate by multiple clamping mechanisms. The initial positions of these valve products are at the same distance from the center of the carrier plate. After clamping the two ends of these valve products in a sealed manner, the valve products are inflated by a lifting mechanism and then placed into a detection tank filled with detection liquid. Observe whether bubbles are generated around the valve products. If bubbles are generated around a certain valve product, the corresponding adjustment mechanism is used to adjust the positions of the clamping mechanism and the valve product in the radial direction of the carrier plate, so that their positions are significantly different from those of other valve products. In this way, after the detection is completed, the lifting mechanism raises the carrier plate, and the unqualified valve products and the qualified valve products are at different distances from the center on the carrier plate, which is convenient for workers to separately collect the unqualified valve products and the qualified valve products.

[0013] In the above technical solution, further, the clamping mechanism includes:

[0014] A clamping seat, and the clamping seat is in an inverted U shape;

[0015] A fixed clamping plate, and the fixed clamping plate is located inside one end of the clamping seat;

[0016] A movable clamping plate, and the movable clamping plate is located inside the other end of the clamping seat. The movable clamping plate and the fixed clamping plate can respectively make sealed contact with the two ends of the valve product;

[0017] A clamping cylinder, and the clamping cylinder is used to drive the movable clamping plate to approach and move away from the fixed clamping plate.

[0018] In the above technical solution, further, the inflation mechanism includes:

[0019] An air guide hole, and the air guide hole is provided on the fixed clamping plate and penetrates through the outer wall of the end of the clamping seat;

[0020] An air guide pipe, one end of the air guide pipe is connected to the air guide hole, and the other end of the air guide pipe is connected to a gas source.

[0021] In the above technical solution, further, the adjustment mechanism includes:

[0022] Multiple sliding grooves, and the multiple sliding grooves are distributed at intervals along the circumferential direction of the carrier plate. The sliding grooves are opened on the carrier plate along the radial direction of the carrier plate;

[0023] A driving disk, and the driving disk is arranged above the carrier plate. The driving disk and the carrier plate are coaxially distributed, and the driving disk is rotatably connected to the carrier plate;

[0024] Multiple transmission guide grooves, and the multiple transmission guide grooves are distributed at intervals along the circumferential direction of the driving disk. The transmission guide grooves include a first guide groove and a second guide groove. The first guide groove is opened on the driving disk, and the first guide groove is an arc segment coaxial with the driving disk; the second guide groove is an inclined segment at an angle with the diameter of the driving disk, and the second guide groove is located on the side of the first guide groove away from the axis of the driving disk;

[0025] Multiple connecting rods, with each clamping mechanism corresponding to one connecting rod. The lower end of the connecting rod is connected to the clamping mechanism, and the connecting rod is slidably connected to the sliding groove. The upper end of the connecting rod extends into the transmission guide groove, and the upper end of the connecting rod can enter the first guide groove and the second guide groove.

[0026] A switching mechanism for switching the upper end of the connecting rod between the first guide groove and the second guide groove.

[0027] When the connecting rod enters the first guide groove, the clamping mechanism will not move radially along the bearing plate during the rotation of the driving disk; when the connecting rod enters the second guide groove, the clamping mechanism will move radially along the bearing plate during the rotation of the driving disk.

[0028] In the above technical solution, further, the first end of the second guide groove is communicated with the first end of the first guide groove. Each group of transmission guide grooves corresponds to a group of switching mechanisms, and the switching mechanism includes:

[0029] A first baffle plate located above the first end of the first guide groove. The lower end of the first baffle plate can extend into the first guide groove so that the connecting rod cannot enter the first guide groove during the rotation of the driving disk.

[0030] A second baffle plate located above the first end of the second guide groove. The lower end of the second baffle plate can extend into the second guide groove so that the connecting rod cannot enter the second guide groove during the rotation of the driving disk.

[0031] A sliding frame, which is fixed relative to the driving disk. The first baffle plate and the second baffle plate are both vertically slidably arranged on the sliding frame.

[0032] A vertical driving mechanism for driving the first baffle plate and the second baffle plate to move vertically.

[0033] In the above technical solution, further, the vertical driving mechanism includes:

[0034] A fixed seat arranged on the driving disk.

[0035] A swing frame located above the first baffle plate and the second baffle plate. The middle part of the swing frame is rotatably arranged on the fixed seat, and the two ends of the swing frame are respectively connected to the first baffle plate and the second baffle plate.

[0036] A magnetic attraction block arranged at the first end of the swing frame, and the magnetic attraction block can be magnetically attracted.

[0037] An electromagnet arranged on the fixed seat, and the electromagnet is opposite to the magnetic attraction block in position. The electromagnet can generate magnetic force when energized.

[0038] A return spring, and the two ends of the return spring are respectively connected to the fixed seat and the second end of the swing frame.

[0039] In the above technical solution, further, when the electromagnet is not energized, the lower end of the first baffle extends into the first guide groove.

[0040] In the above technical solution, further, the carrying plate is vertically slidably connected to the main frame, a mounting seat is provided above the driving plate, a servo motor for driving the driving plate to rotate is provided on the mounting seat, and the mounting seat is connected to the lifting mechanism.

[0041] The present invention also discloses a method for using the valve sealing detection device, which comprises the following steps:

[0042] Step 1: Introduce the test liquid into the test tank, and clamp multiple valve products respectively through multiple groups of clamping mechanisms;

[0043] Step 2: Filling gas into the clamped valve product through the inflation mechanism;

[0044] Step 3: Drive the carrier plate vertically downward through the lifting mechanism so that all valve products enter the test liquid;

[0045] Step 4: Observe whether there are bubbles around the valve product. If there are bubbles, energize the corresponding electromagnet. If there are no bubbles, the corresponding electromagnet does not need to be energized.

[0046] Step 5: After the test is completed, the lifting mechanism drives the carrier plate vertically upward, and the driving plate is rotated to move the connecting rod from the first end to the other end in the transmission guide groove. During this process, the qualified valve products are pushed to the outside of the carrier plate, and the unqualified valve products remain on the inside of the carrier plate;

[0047] Step 6: Remove the valve products on the inner side and the outer side of the carrier plate and collect them separately.

[0048] The beneficial effects of the present invention are:

[0049] 1. Through the cooperation of the main frame, the detection tank, the carrier plate, multiple groups of clamping mechanisms, the adjustment mechanism, the lifting mechanism, and the inflation mechanism, multiple valve products can be tested at the same time each time, and when unqualified valve products are found during the test, the position of the unqualified valve products on the carrier plate can be adjusted to be obviously different from the positions of other valve products, so that qualified valve products and unqualified valve products are not easily confused when they are collected after the test is completed; in addition, multiple devices can be tested at the same time, and different workers can be arranged to cooperate in clamping, observation and adjustment, and collection and collection, so that workers do not need to move around repeatedly, thereby improving the efficiency of valve testing.

[0050] 2. By designing the inflation mechanism as a combination of air guide holes, air pipes, and air sources, the inflation step of the valve product can be carried out before or after the valve product is placed in the detection tank, providing more optional operation methods and a higher error tolerance rate for the operation.

[0051] 3. By designing the adjustment mechanism as a combination of a sliding groove, a driving disk, a first guide groove, a second guide groove, a connecting rod, and a switching mechanism, the connecting rod is switched between the first guide groove and the second guide groove through the switching mechanism. When the connecting rod is located in the first guide groove, the rotation of the driving disk does not apply a force in the radial direction of the driving disk to the connecting rod, so that the connecting rod does not move radially on the bearing disk. When the connecting rod is located in the second guide groove, the rotation of the driving disk applies a force in the radial direction of the driving disk to the connecting rod, so that the connecting rod can move radially on the bearing disk, and the movement of the connecting rod will drive the clamping mechanism to move together. In this way, the connecting rods corresponding to different valve products are switched to the required guide grooves, and by rotating the driving disk, the qualified valve products and unqualified valve products can be moved to the marking positions at the same time, and the unqualified valve products can be marked efficiently, so that there will be no confusion between the qualified valve products and unqualified valve products after the detection.

[0052] 4. By connecting one end of the first guide groove and the second guide groove, and designing the switching mechanism as a combination of a first baffle, a second baffle, a sliding frame, and a vertical driving mechanism, when switching the guide groove of the connecting rod, there is no need to move the connecting rod, and thus there is no need to move the clamping mechanism and the valve product, which can ensure the stable detection of the valve product. And only by driving the first baffle and the second baffle to perform corresponding vertical movements, the guide groove switching of the connecting rod can be completed, with a clever structure and simple operation.

[0053] 5. By designing the vertical driving mechanism as a combination of a fixed seat, a swing frame, a magnetic block, an electromagnet, and a return spring, and when the electromagnet is in the non-powered state, the lower end of the first baffle extends into the first guide groove. After the detection, if the valve product is qualified, there is no need to energize the electromagnet, and when the driving disk rotates, the valve product will move in the second guide groove and be pushed to the outside of the bearing disk; if the valve product is unqualified, then energize the electromagnet so that when the driving disk rotates, the valve product moves in the first guide groove and stays inside the bearing disk; since the unqualified valve products are in the minority, the energization condition of the electromagnet corresponding to the qualified valve products is designed as normally closed, which can save a large amount of electric energy and is more environmentally friendly.

[0054] 6. The driving disk is driven by a servo motor, with accurate driving angle and capable of reducing the labor intensity of workers. Description of the Drawings

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or in 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 some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0056] Figure 1 It is a schematic side view structure diagram of the valve sealing performance detection device in the present invention.

[0057] Figure 2 It is a schematic three-dimensional structure diagram of the valve sealing performance detection device of the present invention in the first direction.

[0058] Figure 3 It is a schematic three-dimensional structure diagram of the valve sealing performance detection device of the present invention in the second direction.

[0059] Figure 4 It is a schematic three-dimensional structure diagram of the carrier plate in the first direction in the present invention.

[0060] Figure 5 It is a schematic three-dimensional structure diagram of the carrier plate in the second direction in the present invention.

[0061] Figure 6 It is a schematic top view structure diagram of the driving disc and the switching mechanism in the present invention.

[0062] Figure 7 It is a schematic three-dimensional structure diagram of the driving disc and the switching mechanism in the present invention.

[0063] Figure 8 It is Figure 7 a partial enlarged structure diagram at position A in

[0064] Figure 9 It is a schematic three-dimensional structure diagram of the electromagnet in the energized state in the first direction in the present invention.

[0065] Figure 10 It is a schematic three-dimensional structure diagram of the electromagnet in the energized state in the second direction in the present invention.

[0066] Figure 11 It is a schematic diagram of the electromagnet in the non-energized state in the present invention.

[0067] The markings in the figure indicate:

[0068] 1. Clamping mechanism; 101. Clamping seat; 102. Fixed clamping plate; 103. Movable clamping plate; 104. Clamping cylinder; 2. Detection groove; 3. Inflation mechanism; 301. Air guide hole; 302. Air duct; 4. Carrier plate; 401. Sliding groove; 5. Adjustment mechanism; 501. Driving disk; 502. Transmission guide groove; 5021. First guide groove; 5022. Second guide groove; 503. Connecting rod; 6. Main frame body; 7. Lifting mechanism; 8. Switching mechanism; 801. First baffle; 802. Second baffle; 803. Sliding frame; 9. Vertical driving mechanism; 901. Fixed seat; 902. Swing frame; 903. Magnetic attraction block; 904. Electromagnet; 905. Return spring; 10. Mounting seat; 11. Servo motor; 100. Valve product; Detailed implementation manners

[0069] 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0071] It should be noted that in the description of this application, the orientation terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" usually indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description. Without contrary explanations, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, so they cannot be understood as limiting the protection scope of this application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0072] Embodiment 1

[0073] As Figures 1-5As shown in the figure, this embodiment provides a valve sealing detection device, including: a clamping mechanism 1, a detection tank 2, an inflation mechanism 3, a bearing plate 4, an adjustment mechanism 5, and a main frame body 6.

[0074] The main frame body 6 serves as the main framework of the detection device, and the main frame body 6 is in a Z shape.

[0075] Please refer to Figure 1 , the detection tank 2 can be installed on the main frame body 6 or can be separately arranged from the main frame body 6, and the detection tank 2 can hold detection liquid.

[0076] Please refer to Figure 3 , the clamping mechanism 1 is used to tightly clamp the valve product 100 in a sealed manner. Any structure in the prior art that can tightly clamp the valve product 100 in a sealed manner can be used as the clamping mechanism 1 in this embodiment. The clamping of the valve product 100 mainly seals and clamps both ends of the valve product 100 to form a sealed environment inside the valve product 100.

[0077] To make the technical solution of this embodiment more specific, this embodiment discloses a structure of the clamping mechanism 1. Please refer to Figure 5 , the clamping mechanism 1 includes: a clamping seat 101, a fixed clamping plate 102, a movable clamping plate 103, and a clamping cylinder 104. Specifically, the clamping seat 101 is in an inverted U shape; the fixed clamping plate 102 is located inside one end of the clamping seat 101; the movable clamping plate 103 is located inside the other end of the clamping seat 101, and the movable clamping plate 103 and the fixed clamping plate 102 can respectively make sealed contact with both ends of the valve product 100; the clamping cylinder 104 is used to drive the movable clamping plate 103 to approach and move away from the fixed clamping plate 102.

[0078] The inflation mechanism 3 is used to inflate the valve product 100 that is tightly clamped in a sealed manner, so that the inside of the valve product 100 is filled with air. In this way, when the valve product 100 is placed in the detection liquid, it can be observed whether the sealing performance of the valve product 100 is qualified through the bubble method. Any structure in the prior art that can inflate the sealed valve product 100 can be used as the inflation mechanism 3 in this embodiment.

[0079] To make the technical solution of this embodiment more specific, this embodiment discloses a structure of the inflation mechanism 3. Please refer to Figure 5, the inflation mechanism 3 includes: an air guide hole 301 and an air guide pipe 302. Specifically, the air guide hole 301 is provided on the fixed clamping plate 102, and the air guide hole 301 penetrates through the outer wall of the end of the clamping seat 101; one end of the air guide pipe 302 is connected to the air guide hole 301, and the other end of the air guide pipe 302 is connected to a gas source (not shown in the figure). In the prior art, any structure that can compress and transfer gas can be used as the gas source in this embodiment, such as an air compressor in the prior art, etc. The air guide pipe 302 can be selected as a flexible pipe, and the flexible pipe is allowed to deform during use, which can reduce the requirements for the installation position of the gas source and also allow the air guide pipe 302 to move with the carrier plate 4 and the clamping mechanism 1.

[0080] The carrier plate 4 is a disc body. Please refer to Figure 1 , the carrier plate 4 is located above the detection groove 2. A plurality of clamping mechanisms 1 are provided at the bottom of the carrier plate 4. The plurality of clamping mechanisms 1 are circumferentially spaced along the carrier plate 4, and the clamping mechanism 1 can slide radially on the carrier plate 4;

[0081] The adjusting mechanism 5 is used to adjust the position of the clamping mechanism 1 in the radial direction of the carrier plate 4. The adjusting mechanism 5 can be adjusted manually or electrically. In the prior art, any structure that can drive the clamping mechanism 1 to adjust its position in the radial direction of the carrier plate 4 can be used as the adjusting mechanism 5 in this embodiment;

[0082] A lifting mechanism 7 is provided on the main frame body 6. The lifting mechanism 7 is used to drive the carrier plate 4 to move vertically. In the prior art, any structure that can drive the carrier plate 4 to move vertically can be used as the lifting mechanism 7 in this embodiment, such as a pneumatic cylinder, a hydraulic cylinder, a lead screw-nut combination, etc.

[0083] In this embodiment, a plurality of valve products 100 are clamped below the carrier plate 4 by a plurality of clamping mechanisms 1. The initial positions of these valve products 100 are at the same distance from the center of the carrier plate 4. After clamping the two ends of these valve products 100 in a sealed manner, the valve products 100 are inflated by the lifting mechanism 7 and then placed into the detection tank 2 filled with detection liquid. Observe whether bubbles are generated around the valve products 100. If bubbles are generated around a certain valve product 100, the position of the clamping mechanism 1 and the valve product 100 in the radial direction of the carrier plate 4 is adjusted through the corresponding adjustment mechanism 5 to make its position significantly different from that of other valve products 100. In this way, after the detection is completed, the lifting mechanism 7 raises the carrier plate 4, and the unqualified valve products 100 and the qualified valve products 100 are at different distances from the center on the carrier plate 4, which is convenient for workers to collect the unqualified valve products 100 and the qualified valve products 100 separately; in this way, the qualified valve products 100 and the unqualified valve products 100 are not easily confused when being collected after the detection is completed; in addition, multiple devices can perform the detection simultaneously, and different workers can be arranged to cooperate in division of labor for clamping, observation and adjustment, and picking and collecting. In this way, workers do not need to walk back and forth repeatedly, improving the efficiency of valve detection.

[0084] Embodiment 2

[0085] This embodiment provides a valve sealing detection device. In addition to including the technical solutions of the above embodiment, a structure of the adjustment mechanism 5 is also disclosed;

[0086] In this embodiment, the adjustment mechanism 5 includes: a plurality of sliding grooves 401, a driving disk 501, a plurality of transmission guide grooves 502, a plurality of connecting rods 503, and a switching mechanism 8.

[0087] Please refer to Figure 4 , the plurality of sliding grooves 401 are distributed at intervals along the circumferential direction of the carrier plate 4. The sliding grooves 401 are opened on the carrier plate 4 along the radial direction of the carrier plate 4, and the sliding grooves 401 penetrate the upper and lower surfaces of the carrier plate 4. In the figure, the sliding grooves 401 are taken as an example of four groups. Of course, the sliding grooves 401 can also be set to other numbers;

[0088] Please refer to Figure 2 , the driving disk 501 is arranged above the carrier plate 4. The driving disk 501 is also a disk body. The driving disk 501 and the carrier plate 4 are coaxially distributed, and the driving disk 501 is rotatably connected to the carrier plate 4;

[0089] Please refer to Figure 2 , the plurality of transmission guide grooves 502 are distributed at intervals along the circumferential direction of the driving disk 501. In the figure, the transmission guide grooves 502 are taken as an example of four groups. Of course, the transmission guide grooves 502 can also be set to other numbers; Specifically, please refer to Figure 6, the transmission guide groove 502 includes a first guide groove 5021 and a second guide groove 5022. The first guide groove 5021 is formed on the driving disk 501, and the first guide groove 5021 is an arc segment coaxial with the driving disk 501; the second guide groove 5022 is an inclined segment at an angle to the diameter of the driving disk 501, and the second guide groove 5022 is located on the side of the first guide groove 5021 away from the axis of the driving disk 501; both the first guide groove 5021 and the second guide groove 5022 penetrate the upper and lower surfaces of the driving disk 501;

[0090] Each clamping mechanism 1 corresponds to a connecting rod 503. Please refer to Figure 3 , the lower end of the connecting rod 503 is connected to the clamping mechanism 1. Please refer to Figure 4 , the middle part of the connecting rod 503 is slidably connected to the sliding groove 401. Please refer to Figure 5 , the upper end of the connecting rod 503 extends into the transmission guide groove 502, and the upper end of the connecting rod 503 can enter the first guide groove 5021 and the second guide groove 5022;

[0091] In this embodiment, the first guide groove 5021 and the second guide groove 5022 may have overlapping parts with each other or may be completely independent. The switching mechanism 8 is used to switch the upper end of the connecting rod 503 between the first guide groove 5021 and the second guide groove 5022. The switching mechanism 8 can be selected in a manually driven manner or an electrically controlled driven manner;

[0092] In this embodiment, when the connecting rod 503 enters the first guide groove 5021, the side wall of the first guide groove 5021 will not apply a force to the connecting rod 503 in the radial direction of the bearing disk 4 during the rotation of the driving disk 501. Therefore, the clamping mechanism 1 will not move radially along the bearing disk 4; when the connecting rod 503 enters the second guide groove 5022, the side wall of the second guide groove 5022 will apply a force to the connecting rod 503 in the radial direction of the bearing disk 4 during the rotation of the driving disk 501, so that the clamping mechanism 1 will move radially along the bearing disk 4;

[0093] Taking the Figure 6 azimuth order as an example, when the connecting rod 503 enters the second guide groove 5022, when the driving disk 501 rotates clockwise, the inner side wall of the second guide groove 5022 will give the connecting rod 503 an outward thrust, causing the connecting rod 503 to move away from the center of the circle on the bearing disk 4, so as to push the clamping mechanism 1 and the valve product 100 to the outside of the bearing disk 4; when the clamping mechanism 1 and the valve product 100 are located outside the bearing disk 4, rotate the driving disk 501 counterclockwise, and the outer side wall of the second guide groove 5022 will give the connecting rod 503 an inward thrust, causing the connecting rod 503 to move towards the center of the circle on the bearing disk 4, so as to push the clamping mechanism 1 and the valve product 100 to the inside of the bearing disk 4.

[0094] In this embodiment, the switching mechanism 8 is used to switch the connecting rod 503 between the first guide groove 5021 and the second guide groove 5022, and switch the connecting rod 503 corresponding to different valve products 100 to the required guide groove. By rotating the driving disk 501, the qualified valve products 100 and the unqualified valve products 100 can be moved to the marking position at the same time, and the unqualified valve products 100 can be marked efficiently. In this way, after the detection is completed, the qualified valve products 100 and the unqualified valve products 100 will not be confused with each other.

[0095] Embodiment 3

[0096] This embodiment provides a valve sealing detection device. In addition to including the technical solutions of the above embodiments, a structure of the switching mechanism 8 is also disclosed;

[0097] In this embodiment, the first end of the second guide groove 5022 is communicated with the first end of the first guide groove 5021, so that each set of transmission guide grooves 502 is in a "person" shape. The communication area between the first guide groove 5021 and the second guide groove 5022 is hereinafter referred to as the "coincidence position". Each set of transmission guide grooves 502 corresponds to a set of switching mechanisms 8. The switching mechanism 8 includes: a first baffle 801, a second baffle 802, a sliding frame 803, and a vertical driving mechanism 9.

[0098] The first baffle 801 is located above the first end of the first guide groove 5021. The lower end of the first baffle 801 can extend into the first guide groove 5021. When the lower end of the first baffle 801 extends into the first guide groove 5021, the lower surface of the first baffle 801 should be higher than the upper end surface of the connecting rod 503. In this way, the connecting rod 503 cannot enter the first guide groove 5021 from the coincidence position during the rotation of the driving disk 501, but can only enter the second guide groove 5022.

[0099] The second baffle 802 is located above the first end of the second guide groove 5022. The lower end of the second baffle 802 can extend into the second guide groove 5022. When the lower end of the second baffle 802 extends into the second guide groove 5022, the lower surface of the second baffle 802 should be higher than the upper end surface of the connecting rod 503. In this way, the connecting rod 503 cannot enter the second guide groove 5022 from the coincidence position during the rotation of the driving disk 501, but can only enter the first guide groove 5021.

[0100] The sliding frame 803 is arranged on the driving disk 501. The sliding frame 803 has two parts. One part is vertically slidably connected to the first baffle 801, and the other part is vertically slidably connected to the second baffle 802;

[0101] The vertical driving mechanism 9 is used to drive the first baffle 801 and the second baffle 802 to move vertically;

[0102] In this embodiment, only by vertically pushing either the first baffle 801 or the second baffle 802 into the corresponding guide groove, the connecting rod 503 can be pushed into one of the guide grooves. According to the need, by controlling the vertical movement of the first baffle 801 and the second baffle 802 through the vertical driving mechanism 9, the guide groove selection for the connecting rod 503 can be carried out without moving the connecting rod 503, and thus there is no need to move the clamping mechanism 1 and the valve product 100, which can ensure the stable detection of the valve product 100. Moreover, only by driving the first baffle 801 and the second baffle 802 to perform corresponding vertical movements, the guide groove switching of the connecting rod 503 can be completed. The structure is ingenious and the operation is simple.

[0103] Embodiment 4

[0104] This embodiment provides a valve sealing detection device. In addition to including the technical solutions of the above embodiment, a structure of the vertical driving mechanism 9 is also disclosed;

[0105] In this embodiment, the vertical driving mechanism 9 includes: a fixed seat 901, a swing frame 902, a magnetic attraction block 903, an electromagnet 904, and a return spring 905.

[0106] Please refer to Figure 7 , the fixed seat 901 is arranged on the driving disk 501;

[0107] Please refer to Figure 8 , the swing frame 902 is located above the first baffle 801 and the second baffle 802. The middle part of the swing frame 902 is rotatably arranged on the fixed seat 901. The two ends of the swing frame 902 are respectively connected to the first baffle 801 and the second baffle 802. Specifically, the first baffle 801 is connected to the first end of the swing frame 902, and the second baffle 802 is connected to the second end of the swing frame 902;

[0108] The magnetic attraction block 903 is arranged on the upper surface of the first end of the swing frame 902, and the magnetic attraction block 903 can be attracted by magnetic force;

[0109] The electromagnet 904 is arranged on the fixed seat 901 and is located above the magnetic attraction block 903. The electromagnet 904 and the magnetic attraction block 903 are opposite in position. The electromagnet 904 can generate magnetic force when energized. Therefore, when the electromagnet 904 generates magnetic force, the magnetic attraction block 903 can be attracted upward. In this process, the first end of the swing frame 902 will be driven by the magnetic attraction block 903 to swing upward, causing the first baffle 801 to move upward. At the same time, the second end of the swing frame 902 will swing downward, causing the second baffle 802 to move downward;

[0110] Both ends of the return spring 905 are respectively connected to the fixed seat 901 and the second end of the swing frame 902. During the downward swing of the second end of the swing frame 902, the return spring 905 will be stretched to accumulate elastic force. However, during this process, the magnetic force of the electromagnet 904 on the magnetic attraction block 903 is greater than the elastic force of the return spring 905. Therefore, the return spring 905 cannot pull the second end of the swing frame 902 upward. After the electromagnet 904 is powered off, the elastic force of the return spring 905 will pull the second end of the swing frame 902 upward, causing the second baffle 802 to move upward. At the same time, the first end of the swing frame 902 will swing downward, causing the first baffle 801 to move downward;

[0111] It should be noted that since the swing trajectories of both ends of the swing frame 902 are arcs, while the movement trajectories of the first baffle 801 and the second baffle 802 are vertical lines, there is a horizontal gap at the connection positions of the two baffles and the swing frame 902 to allow a small horizontal displacement during the process of the swing frame 902 driving the two baffles, so that the overall structure can operate smoothly.

[0112] In this embodiment, Figure 9 and Figure 10 What is shown is a schematic diagram of the electromagnet 904 being powered on. At this time, the lower end of the second baffle 802 extends into the second guide groove 5022, and the lower end of the first baffle 801 is far from the first guide groove 5021 and higher than the upper end face of the connecting rod 503. At this time, if the driving disk 501 rotates, the connecting rod 503 can move in the first guide groove 5021; after the electromagnet 904 is powered off, the second end of the swing frame 902 is higher than the first end. At this time, the lower end of the first baffle 801 extends into the first guide groove 5021, and the lower end of the second baffle 802 is far from the second guide groove 5022 and higher than the upper end face of the connecting rod 503;

[0113] As another situation of this embodiment, please refer to Fig. 11. When the electromagnet 904 is powered off, the position of the lower end of the first baffle 801 can be designed to be lower than the position of the lower end of the second baffle 802. In this case, the connection heights of the upper ends of the two baffles and the swing frame 902 can be the same, and the overall vertical length of the first baffle 801 is greater than that of the second baffle 802. It can also be that the vertical lengths of the two baffles are the same, and the connection height of the upper end of the first baffle 801 and the swing frame 902 is lower than the connection height of the upper end of the second baffle 802 and the swing frame 902; in this way, when the electromagnet 904 is not powered on, the lower end of the first baffle 801 extends into the first guide groove 5021, that is, the connecting rod 503 enters the second guide groove 5022, and the swing frame 902 is also in a state of balance at both ends or the first end is slightly higher than the second end. In this way, the distance between the electromagnet 904 and the magnetic attraction block 903 is not too far, which can ensure that the electromagnet 904 can attract the magnetic attraction block 903 to swing the swing frame 902;

[0114] In this embodiment, if the valve product 100 is qualified after detection, there is no need to energize the electromagnet 904. When the driving disk 501 rotates, the valve product 100 will move in the second guide groove 5022 and be pushed to the outside of the bearing disk 4. If the valve product 100 is unqualified, then energize the electromagnet 904, so that when the driving disk 501 rotates, the valve product 100 moves in the first guide groove 5021 and stays inside the bearing disk 4. Since the unqualified valve products 100 are in the minority, designing the energization condition of the electromagnet 904 corresponding to the qualified valve products 100 to be normally closed can save a large amount of electric energy and be more environmentally friendly.

[0115] In this embodiment, control buttons with the same quantity and distribution as all the electromagnets 904 can be arranged on the main frame 6. When a worker observes bubbles in a certain valve product 100 during the detection process, press the corresponding control button to energize the corresponding electromagnet 904, and the unqualified valve product 100 can be preliminarily marked. When the driving disk 501 rotates, the unqualified valve product 100 can stay inside the bearing disk 4.

[0116] Embodiment 5

[0117] This embodiment provides a valve sealing detection device. In addition to including the technical solutions of the above embodiments, a driving method for the driving disk 501 is also disclosed;

[0118] Please refer to Figure 1 , in this embodiment, the bearing disk 4 is vertically slidably connected to the main frame 6. An installation seat 10 is provided above the driving disk 501. A servo motor 11 for driving the driving disk 501 to rotate is provided on the installation seat 10, and the installation seat 10 is connected to the lifting mechanism 7;

[0119] The servo motor 11 has the advantages of accurate rotation supervision and fast response. By using the servo motor 11 to drive the driving disk 501, the driving angle is accurate and the labor intensity of workers can be reduced.

[0120] Embodiment 6

[0121] This embodiment discloses a usage method of a valve sealing detection device. This usage method is applicable to the valve sealing detection device in the foregoing embodiments. This usage method includes the following steps:

[0122] Step 1: Introduce detection liquid into the detection tank 2, and clamp multiple valve products 100 through multiple groups of clamping mechanisms 1 respectively;

[0123] Step 2: Inflate the clamped valve products 100 through the inflation mechanism 3;

[0124] Step 3: Drive the carrier plate 4 vertically downward through the lifting mechanism 7 so that all valve products 100 enter the detection liquid;

[0125] Step 4: Observe whether there are bubbles generated around the valve product 100. If there are bubbles generated, energize the corresponding electromagnet 904. If there are no bubbles generated, the corresponding electromagnet 904 does not need to be energized;

[0126] Step 5: After the detection is completed, drive the carrier plate 4 vertically upward through the lifting mechanism 7, and rotate the drive disk 501 to make the connecting rod 503 move from the first end to the other end in the transmission guide groove 502. During this process, the qualified valve products 100 are pushed to the outside of the carrier plate 4, and the unqualified valve products 100 remain inside the carrier plate 4;

[0127] Step 6: Remove and collect the valve products 100 inside and outside the carrier plate 4 separately;

[0128] In this embodiment, the order between Step 2 and Step 3 can be exchanged, that is, first put the valve product 100 into the detection liquid, and then fill the valve product 100 with gas.

[0129] In this embodiment, Steps 1 to 6 can be completed by one worker or by multiple workers with division of labor. Specifically, clamping the valve product 100 and picking up and collecting the valve product 100 require the worker to have certain experience and operation skills and generally need professional training. However, the observation process and the energization process are relatively simple and can be mastered with simple training. Therefore, different workers can be arranged in the stages of clamping the valve product 100, observing, energizing, and picking up and collecting the valve product 100, which can make reasonable use of labor, reduce the labor intensity of the workers, and improve the detection efficiency of the valve product 100; in addition, multiple detection devices can perform detection simultaneously, and one worker can observe multiple devices to further improve the detection efficiency of the valve product 100.

[0130] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A valve sealing detection device, comprising: A clamping mechanism (1), the clamping mechanism (1) being used to seal and clamp the valve product (100); A detection tank (2), wherein the detection tank (2) can contain a detection liquid; An inflation mechanism (3), the inflation mechanism (3) being used to inflate the valve product (100) being sealed and clamped; It is characterized by further comprising: A carrier plate (4), the carrier plate (4) being located above the detection slot (2), a plurality of groups of the clamping mechanisms (1) being provided at the bottom of the carrier plate (4), the clamping mechanisms (1) being able to slide radially on the carrier plate (4); An adjusting mechanism (5), the adjusting mechanism (5) being used to adjust the radial position of the clamping mechanism (1) on the carrying plate (4); A main frame (6), wherein a lifting mechanism (7) is provided on the main frame (6), and the lifting mechanism (7) is used to drive the carrying plate (4) to move vertically; The regulating mechanism (5) comprises: A plurality of groups of sliding grooves (401), wherein the plurality of groups of sliding grooves (401) are distributed at intervals along the circumference of the carrier plate (4), and the sliding grooves (401) are opened on the carrier plate (4) along the radial direction of the carrier plate (4); A driving disk (501), the driving disk (501) being arranged above the carrying disk (4), the driving disk (501) and the carrying disk (4) being coaxially distributed, and the driving disk (501) and the carrying disk (4) being rotatably connected; a plurality of groups of transmission guide grooves (502), the plurality of groups of transmission guide grooves (502) being distributed at intervals along the circumference of the driving disk (501), the transmission guide grooves (502) comprising a first guide groove (5021) and a second guide groove (5022), the first guide groove (5021) being provided on the driving disk (501), the first guide groove (5021) being a circular arc segment coaxial with the driving disk (501); the second guide groove (5022) being an inclined segment forming an angle with the diameter of the driving disk (501), the second guide groove (5022) being located on a side of the first guide groove (5021) away from the axis of the driving disk (501); a plurality of connecting rods (503), each group of the clamping mechanisms (1) corresponding to one connecting rod (503), the lower end of the connecting rod (503) being connected to the clamping mechanism (1), the connecting rod (503) being slidably connected to the sliding groove (401), the upper end of the connecting rod (503) extending into the transmission guide groove (502), and the upper end of the connecting rod (503) being able to enter the first guide groove (5021) and the second guide groove (5022); a switching mechanism (8), the switching mechanism (8) being used to switch the upper end of the connecting rod (503) between the first guide groove (5021) and the second guide groove (5022); When the connecting rod (503) enters the first guide groove (5021), the clamping mechanism (1) will not move radially along the supporting plate (4) during the rotation of the driving plate (501); when the connecting rod (503) enters the second guide groove (5022), the clamping mechanism (1) will move radially along the supporting plate (4) during the rotation of the driving plate (501).

2. The valve sealing detection device according to claim 1, characterized in that: The clamping mechanism (1) comprises: A clamping seat (101), wherein the clamping seat (101) is in an inverted U shape; A fixed clamping plate (102), the fixed clamping plate (102) being located on the inner side of one end of the clamping seat (101); A movable clamping plate (103), the movable clamping plate (103) being located on the inner side of the other end of the clamping seat (101), the movable clamping plate (103) and the fixed clamping plate (102) being capable of respectively being in sealing contact with the two ends of the valve product (100); A clamping cylinder (104), wherein the clamping cylinder (104) is used to drive the movable clamping plate (103) to move closer to and away from the fixed clamping plate (102).

3. The valve sealing detection device according to claim 2, characterized in that: The inflation mechanism (3) comprises: An air guide hole (301), the air guide hole (301) being arranged on the fixed clamping plate (102), and the air guide hole (301) penetrating an outer wall of an end portion of the clamping seat (101); An air guide tube (302), one end of the air guide tube (302) is connected to the air guide hole (301), and the other end of the air guide tube (302) is connected to an air source.

4. The valve sealing detection device according to claim 1, characterized in that: The first end of the second guide groove (5022) is connected to the first end of the first guide groove (5021), and each group of the transmission guide grooves (502) corresponds to a group of switching mechanisms (8), and the switching mechanism (8) includes: a first baffle (801), the first baffle (801) being located above the first end of the first guide groove (5021), the lower end of the first baffle (801) being able to extend into the first guide groove (5021), so that the connecting rod (503) cannot enter the first guide groove (5021) during the rotation of the driving disk (501); a second baffle (802), the second baffle (802) being located above the first end of the second guide groove (5022), the lower end of the second baffle (802) being able to extend into the second guide groove (5022), so that the connecting rod (503) cannot enter the second guide groove (5022) during the rotation of the driving disk (501); A sliding frame (803), wherein the sliding frame (803) is fixed relative to the driving disk (501), and the first baffle plate (801) and the second baffle plate (802) are both vertically slidably disposed on the sliding frame (803); A vertical driving mechanism (9), the vertical driving mechanism (9) is used to drive the first baffle (801) and the second baffle (802) to move vertically.

5. The valve sealing detection device according to claim 4, characterized in that: The vertical driving mechanism (9) comprises: A fixing seat (901), wherein the fixing seat (901) is arranged on the driving disk (501); A swing frame (902), the swing frame (902) is located above the first baffle plate (801) and the second baffle plate (802), the middle part of the swing frame (902) is rotatably arranged on the fixed seat (901), and the two ends of the swing frame (902) are respectively connected to the first baffle plate (801) and the second baffle plate (802); A magnetic attraction block (903), wherein the magnetic attraction block (903) is arranged at the first end of the swing frame (902), and the magnetic attraction block (903) can be attracted by magnetic force; An electromagnet (904), wherein the electromagnet (904) is disposed on the fixing seat (901), the electromagnet (904) is opposite to the magnetic attraction block (903), and the electromagnet (904) can generate magnetic force when powered on; A return spring (905), wherein two ends of the return spring (905) are respectively connected to the fixing seat (901) and the second end of the swing frame (902).

6. The valve sealing detection device according to claim 5, characterized in that: When the electromagnet (904) is not energized, the lower end of the first baffle (801) extends into the first guide groove (5021).

7. The valve sealing detection device according to claim 1, characterized in that: The carrying plate (4) is vertically slidably connected to the main frame (6); a mounting seat (10) is provided above the driving plate (501); a servo motor (11) for driving the driving plate (501) to rotate is provided on the mounting seat (10); and the mounting seat (10) is connected to the lifting mechanism (7).

8. A method for using a valve sealing detection device, applicable to the valve sealing detection device according to claim 6, characterized in that: The method of use includes the following steps: Step 1: introducing a test liquid into the test tank (2), and clamping a plurality of valve products (100) respectively by using a plurality of sets of clamping mechanisms (1); Step 2: injecting gas into the clamped valve product (100) through the inflation mechanism (3); Step 3: driving the carrier plate (4) vertically downward by means of the lifting mechanism (7) so that all valve products (100) enter the testing liquid; Step 4: Observe whether bubbles are generated around the valve product (100). If bubbles are generated, energize the corresponding electromagnet (904). If no bubbles are generated, the corresponding electromagnet (904) does not need to be energized. Step 5: After the test is completed, the lifting mechanism (7) drives the carrier plate (4) vertically upward, and the driving plate (501) is rotated to move the connecting rod (503) from the first end to the other end in the transmission guide groove (502). During this process, the qualified valve products (100) are pushed to the outside of the carrier plate (4), and the unqualified valve products (100) remain on the inside of the carrier plate (4); Step 6: Remove the valve product (100) on the inner side and the valve product (100) on the outer side of the carrier plate (4) and collect them separately.

Images