Valve sealing performance detection equipment and use method thereof

Abstract

The invention belongs to the technical field of valve detection, and particularly relates to valve sealing performance detection equipment and a use method thereof.The valve sealing performance detection equipment comprises a clamping mechanism, a detection groove, an inflation mechanism, a bearing disc, an adjusting mechanism and a main frame body, and the clamping mechanism is used for sealing and clamping a valve product; detection liquid can be contained in the detection groove; the inflating mechanism is used for inflating the sealed and clamped valve product; the bearing disc is located above the detection groove, a plurality of clamping mechanisms are arranged at the bottom of the bearing disc, and the clamping mechanisms can slide on the bearing disc in the radial direction; the adjusting mechanism is used for adjusting the position of the clamping mechanism in the radial direction of the bearing disc; a lifting mechanism is arranged on the main frame body and is used for driving the bearing disc to vertically move; compared with the prior art, the valve leakproofness detection equipment can be used for detecting leakproofness of a plurality of valves at the same time, meanwhile, unqualified valves can be marked obviously, and qualified valves and the unqualified valves are not prone to being mixed up in the collection stage after detection is completed.

Description

Technical Field

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

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. After the valve is processed, it is necessary to conduct a sealing test to ensure that the valve can effectively prevent the leakage of the medium during use. At present, the main methods for valve sealing detection include bubble detection method, helium mass spectrometry detection method, ultrasonic detection method, etc., among which the bubble detection method is more commonly used.

[0003] At present, in the process of testing the sealing performance of valves by the bubble detection method, the valve is generally clamped and sealed first, then gas is filled into the valve, and then the valve is placed in the testing liquid. If bubbles are generated in the testing liquid, it means that the valve is leaking and the sealing performance is poor. Otherwise, it means that the sealing performance of the valve is good. However, when testing valves, the current testing equipment can generally only perform clamping testing on a single valve, that is, only one valve can be tested at a time, and the testing efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to provide a valve sealing detection device and a method of using the same in order to solve the above-mentioned technical problems. The valve sealing detection device can perform sealing detection on multiple valves at the same time and can clearly mark unqualified valves, so that qualified valves are not easily confused with 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, comprising:

[0006] Clamping mechanism, the clamping mechanism is used to seal and clamp the valve product;

[0007] A detection tank, wherein the detection tank can contain a detection liquid;

[0008] An inflation mechanism, which is used to inflate the valve product that is sealed and clamped;

[0009] The carrier plate is located above the detection slot, and a plurality of clamping mechanisms are provided at the bottom of the carrier plate, and the clamping mechanisms can slide radially on the carrier plate;

[0010] An adjusting mechanism, the adjusting mechanism is used to adjust the position of the clamping mechanism in the radial direction of the carrier plate;

[0011] A main frame is provided with a lifting mechanism, and the lifting mechanism is used to drive the carrying plate to move vertically.

[0012] In the present technical solution, multiple sets of clamping mechanisms are used to clamp multiple valve products under the carrying plate. The initial positions of these valve products are at the same distance from the center of the carrying plate. The valve products that are sealed and clamped at both ends are inflated by a lifting mechanism and placed in a test tank filled with a test liquid to observe whether bubbles are generated around the valve products. If bubbles are generated around a certain valve product, the radial position of the clamping mechanism and the valve product on the carrying plate is adjusted by the corresponding adjustment mechanism to make it have a clear difference from the position of other valve products. In this way, after the inspection is completed, the lifting mechanism lifts the carrying plate, and the distance from the center of the unqualified valve products and the qualified valve products on the carrying plate is different, which is convenient for workers to collect the unqualified valve products and the qualified valve products separately.

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

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

[0015] A fixed splint, which is located on the inner side of one end of the clamping seat;

[0016] The movable splint is located on the inner side of the other end of the clamping seat, and the movable splint and the fixed splint can be in sealing contact with the two ends of the valve product respectively;

[0017] Clamping cylinder: The clamping cylinder is used to drive the movable clamping plate to move closer to and away from the fixed clamping plate.

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

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

[0020] An air guide tube, one end of which is connected to the air guide hole, and the other end of which is connected to the air source.

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

[0022] A plurality of groups of sliding grooves are spaced apart along the circumference of the carrier plate, and the sliding grooves are opened on the carrier plate along the radial direction of the carrier plate;

[0023] A driving disk, which is disposed above the bearing disk, is coaxially distributed with the bearing disk, and is rotatably connected with the bearing disk;

[0024] A plurality of transmission guide grooves are arranged at intervals along the circumference of the driving disk, and the transmission guide grooves include a first guide groove and a second guide groove. The first guide groove is provided on the driving disk, and is a circular arc segment coaxial with the driving disk; the second guide groove is an inclined segment at an angle to the diameter of the driving disk, and is located on a side of the first guide groove away from the axis of the driving disk;

[0025] Multiple connecting rods, each group of clamping mechanisms corresponds to a connecting rod, the lower end of the connecting rod is connected to the clamping mechanism, 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, the switching mechanism is used to switch 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 of the carrier disk during the rotation of the driving disk; when the connecting rod enters the second guide groove, the clamping mechanism will move radially of the carrier disk during the rotation of the driving disk.

[0028] In the above technical solution, further, the first end of the second guide groove is connected to 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, the first baffle is located above the first end of the first guide groove, and the lower end of the first baffle 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, the second baffle is located above the first end of the second guide groove, and the lower end of the second baffle 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, the sliding frame is fixed relative to the driving disk, and the first baffle plate and the second baffle plate are both vertically slidably arranged on the sliding frame;

[0032] The vertical driving mechanism is used to drive the first baffle and the second baffle to move vertically.

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

[0034] A fixed seat, the fixed seat is arranged on the driving disc;

[0035] A swing frame, the swing frame is 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 block, which is arranged at the first end of the swing frame and can be attracted by magnetic force;

[0037] The electromagnet is arranged on a fixed seat, the electromagnet is opposite to the magnetic suction block, and the electromagnet can generate magnetic force when powered on;

[0038] A return spring, two ends of which are respectively connected to the fixing 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 to be a combination of an air guide hole, an air guide tube, and an air source, the inflation step of the valve product can be performed before or after the valve product is placed in the detection tank, so that more operating methods can be selected and the operation fault tolerance rate is higher.

[0051] 3. By designing the adjustment mechanism to cooperate with the sliding groove, the driving disk, the first guide groove, the second guide groove, the connecting rod, and the 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 in the first guide groove, the rotation of the driving disk will not apply a radial force of the driving disk to the connecting rod, so that the connecting rod will not move radially on the bearing disk. When the connecting rod is in the second guide groove, the rotation of the driving disk will apply a radial force along 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 move with the clamping mechanism. In this way, the connecting rods corresponding to different valve products are switched to the required guide grooves, and the rotation of the driving disk can simultaneously move the qualified valve products and the unqualified valve products to the marking position, so that the unqualified valve products can be efficiently marked, so that the qualified valve products and the unqualified valve products will not be confused after the inspection is completed.

[0052] 4. By connecting one end of the first guide groove and the second guide groove, the switching mechanism is designed to be a combination of the first baffle plate, the second baffle plate, the sliding frame, and the vertical driving mechanism. When the guide groove of the connecting rod is switched, there is no need to move the connecting rod, and there is no need to move the clamping mechanism and the valve product, which can ensure stable detection of the valve product, and the guide groove switching of the connecting rod can be completed by only driving the first baffle plate and the second baffle plate to make corresponding vertical movements. The structure is ingenious and the operation is simple.

[0053] 5. By designing the vertical drive mechanism to be a combination of a fixed seat, a swing frame, a magnetic block, an electromagnet, and a reset spring, and when the electromagnet is not energized, the lower end of the first baffle extends into the first guide groove. If the valve product is qualified after detection, there is no need to energize the electromagnet. When the drive disk rotates, the valve product will move in the second guide groove and be pushed to the outside of the carrier disk; if the valve product is unqualified, the electromagnet is energized again, so that when the drive disk rotates, the valve product moves in the first guide groove and stays on the inside of the carrier disk; since unqualified valve products are few, the energization state of the electromagnet corresponding to the qualified valve product is designed to be normally closed, which can save a lot of electricity and is more environmentally friendly.

[0054] 6. The drive disc is driven by a servo motor, the driving angle is precise, and the labor intensity of workers can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0056] Figure 1 It is a side structural schematic diagram of the valve sealing detection equipment in the present invention.

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

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

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

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

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

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

[0063] Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at point A in the middle.

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

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

[0066] Fig.11 It is a schematic diagram of the electromagnet in the present invention when it is not powered on.

[0067] The symbols in the figure are:

[0068] 1. Clamping mechanism; 101. Clamping seat; 102. Fixed splint; 103. Movable splint; 104. Clamping cylinder; 2. Detection slot; 3. Inflating mechanism; 301. Air guide hole; 302. Air guide tube; 4. Carrying plate; 401. Sliding slot; 5. Adjusting mechanism; 501. Driving plate; 502. Transmission guide slot; 5021. First guide slot; 5022. Second guide slot; 503. Connecting rod; 6. Main frame; 7. Lifting mechanism; 8. Switching mechanism; 801. First baffle; 802. Second baffle; 803. Sliding frame; 9. Vertical driving mechanism; 901. Fixed seat; 902. Swinging frame; 903. Magnetic block; 904. Electromagnet; 905. Reset spring; 10. Mounting seat; 11. Servo motor; 100. Valve products; DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, 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 represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0071] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0072] Example 1

[0073] like Figure 1-Figure 5As shown, this embodiment provides a valve sealing detection device, including: a clamping mechanism 1, a detection slot 2, an inflation mechanism 3, a carrier plate 4, an adjustment mechanism 5, a main frame 6,

[0074] The main frame 6 is the main structure of the detection device, and the main frame 6 is in a Z shape;

[0075] See also Figure 1 , the detection tank 2 can be installed on the main frame 6, or can be separated from the main frame 6, and the detection tank 2 can contain the detection liquid;

[0076] See also Figure 3 The clamping mechanism 1 is used to seal and clamp the valve product 100. Any structure that can seal and clamp the valve product 100 in the prior art can be used as the clamping mechanism 1 in this embodiment. The clamping of the valve product 100 mainly involves sealing and clamping the two ends of the valve product 100, so that a sealed environment is formed inside the valve product 100.

[0077] In order to make the technical solution of this embodiment more concrete, 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 on the inner side of one end of the clamping seat 101; the movable clamping plate 103 is located on the inner side of the other end of the clamping seat 101, and the movable clamping plate 103 and the fixed clamping plate 102 can respectively be in sealing contact with the two 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 sealed and clamped, 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 test liquid, it is possible to observe whether the sealing of the valve product 100 is qualified by 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] In order to make the technical solution of this embodiment more concrete, this embodiment discloses a structure of the inflation mechanism 3, please refer to Figure 5The inflation mechanism 3 includes: an air guide hole 301 and an air guide tube 302. Specifically, the air guide hole 301 is provided on the fixed clamping plate 102, and the air guide hole 301 passes through the outer wall of the end of the clamping seat 101; 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 the air source (not shown in the figure). Any structure that can compress and transfer gas in the prior art can be used as the air source in this embodiment, such as an air compressor in the prior art. The air guide tube 302 can be a hose, and the hose is allowed to deform during use, which can reduce the requirements for the installation position of the air source and allow the air guide tube 302 to move with the carrier plate 4 and the clamping mechanism 1.

[0080] The carrier plate 4 is a circular plate, see Figure 1 The carrier plate 4 is located above the detection slot 2, and a plurality of clamping mechanisms 1 are provided at the bottom of the carrier plate 4. The plurality of clamping mechanisms 1 are distributed at intervals along the circumference of the carrier plate 4, and the clamping mechanisms 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 by manual drive or by electric control drive. Any structure in the prior art that can drive the clamping mechanism 1 to adjust the 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 6, and the lifting mechanism 7 is used to drive the carrier plate 4 to move vertically. Any structure in the prior art 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 screw nut combination, etc.

[0083] In this embodiment, multiple groups of clamping mechanisms 1 are used to clamp multiple valve products 100 under the carrier plate 4. The initial positions of these valve products 100 are at the same distance from the center of the carrier plate 4. The valve products 100, which are sealed and clamped at both ends, are inflated by the lifting mechanism 7 and placed in the detection tank 2 containing the detection liquid to observe whether bubbles are generated around the valve products 100. If bubbles are generated around a certain valve product 100, the corresponding adjustment mechanism 5 is used to adjust the radial position of the clamping mechanism 1 and the valve product 100 on the carrier plate 4 so that it has a clear difference from the position of other valve products 100. In this way, after the inspection is completed, the lifting mechanism 7 lifts the carrier plate 4, and the distances from the center of the unqualified valve products 100 and the qualified valve products 100 on the carrier plate 4 are different, which is convenient for workers to collect the unqualified valve products 100 and the qualified valve products 100 respectively; in this way, after the inspection is completed, the qualified valve products 100 and the unqualified valve products 100 are not easily confused when they are collected; in addition, multiple devices can be inspected 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 inspection.

[0084] Example 2

[0085] This embodiment provides a valve sealing detection device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of the adjustment mechanism 5;

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

[0087] See also Figure 4 , multiple groups of sliding grooves 401 are distributed at intervals along the circumference 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 pass through the upper and lower surfaces of the carrier plate 4. In the figure, four groups of sliding grooves 401 are used as an example, and of course, the sliding grooves 401 can also be set to other numbers;

[0088] See also Figure 2 The driving disk 501 is disposed above the carrying disk 4. The driving disk 501 is also a disk. The driving disk 501 and the carrying disk 4 are coaxially distributed. The driving disk 501 and the carrying disk 4 are rotatably connected.

[0089] See also Figure 2 , multiple groups of transmission guide grooves 502 are distributed at intervals along the circumference of the driving disk 501. In the figure, four groups of transmission guide grooves 502 are used as an example. Of course, the transmission guide grooves 502 can also be set to other numbers; please refer to the specific Figure 6The transmission guide groove 502 includes a first guide groove 5021 and a second guide groove 5022. The first guide groove 5021 is provided on the driving disk 501 and is a circular 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 a side of the first guide groove 5021 away from the axis of the driving disk 501; the first guide groove 5021 and the second guide groove 5022 both penetrate the upper and lower surfaces of the driving disk 501;

[0090] Each set of clamping mechanisms 1 corresponds to a connecting rod 503, see 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 with 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 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 may be manually driven or electrically driven.

[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 force to the connecting rod 503 in the radial direction of the carrier plate 4 during the rotation of the driving plate 501, so the clamping mechanism 1 will not move in the radial direction of the carrier plate 4; when the connecting rod 503 enters the second guide groove 5022, the side wall of the second guide groove 5022 will apply force to the connecting rod 503 in the radial direction of the carrier plate 4 during the rotation of the driving plate 501, so that the clamping mechanism 1 will move in the radial direction of the carrier plate 4;

[0093] by Figure 6 Taking the orientation sequence in 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, so that the connecting rod 503 moves away from the center of the circle on the carrying disk 4, thereby pushing the clamping mechanism 1 and the valve product 100 to the outside of the carrying disk 4; when the clamping mechanism 1 and the valve product 100 are located on the outside of the carrying disk 4, the driving disk 501 is rotated counterclockwise, and the outer side wall of the second guide groove 5022 will give the connecting rod 503 an inward thrust, so that the connecting rod 503 moves on the carrying disk 4 toward the center of the circle, thereby pushing the clamping mechanism 1 and the valve product 100 to the inside of the carrying disk 4.

[0094] In this embodiment, the connecting rod 503 is switched between the first guide groove 5021 and the second guide groove 5022 by the switching mechanism 8, and the connecting rod 503 corresponding to different valve products 100 is switched 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 efficiently marked, so that the qualified valve products 100 and the unqualified valve products 100 will not be confused after the detection is completed.

[0095] Example 3

[0096] This embodiment provides a valve sealing detection device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of a switching mechanism 8;

[0097] In this embodiment, the first end of the second guide groove 5022 is connected to the first end of the first guide groove 5021, so that each group of transmission guide grooves 502 is in a "human" shape, and the connecting area between the first guide groove 5021 and the second guide groove 5022 is referred to as the "overlapping position" hereinafter. Each group of transmission guide grooves 502 corresponds to a group of switching mechanisms 8, and 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, and 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, so that the connecting rod 503 cannot enter the first guide groove 5021 from the overlapping position during the rotation of the driving disk 501, but can only enter the second guide groove 5022;

[0099] The second baffle plate 802 is located above the first end of the second guide groove 5022, and the lower end of the second baffle plate 802 can extend into the second guide groove 5022. When the lower end of the second baffle plate 802 extends into the second guide groove 5022, the lower surface of the second baffle plate 802 should be higher than the upper end surface of the connecting rod 503, so that the connecting rod 503 cannot enter the second guide groove 5022 from the overlapping 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, the connecting rod 503 can be pushed into one of the guide grooves by only needing to vertically push the first baffle 801 and the second baffle 802 into the corresponding guide grooves. The vertical movement of the first baffle 801 and the second baffle 802 can be controlled by the vertical driving mechanism 9 as needed to select the guide groove for the connecting rod 503. There is no need to move the connecting rod 503, and there is no need to move the clamping mechanism 1 and the valve product 100, so that stable detection of the valve product 100 can be ensured. Moreover, the guide groove switching of the connecting rod 503 can be completed by only driving the first baffle 801 and the second baffle 802 to perform corresponding vertical movements. The structure is ingenious and the operation is simple.

[0103] Example 4

[0104] This embodiment provides a valve sealing detection device, which, in addition to the technical solutions of the above embodiments, also discloses a structure of a vertical drive mechanism 9;

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

[0106] See also Figure 7 , the fixing seat 901 is arranged on the driving disk 501;

[0107] See also Figure 8 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 disposed on the fixed seat 901. The two ends of the swing frame 902 are respectively connected to the first baffle plate 801 and the second baffle plate 802. Specifically, the first baffle plate 801 is connected to the first end of the swing frame 902, and the second baffle plate 802 is connected to the second end of the swing frame 902.

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

[0109] The electromagnet 904 is arranged on the fixing seat 901 and is located above the magnetic block 903. The electromagnet 904 and the magnetic block 903 are opposite to each other. The electromagnet 904 can generate magnetic force when it is energized. Therefore, when the electromagnet 904 generates magnetic force, it can attract the magnetic block 903 upward. In this process, the first end of the swing frame 902 will be driven by the magnetic block 903 to swing upward, so that the first baffle 801 moves upward. At the same time, the second end of the swing frame 902 will swing downward, so that the second baffle 802 moves downward.

[0110] The two ends of the return spring 905 are respectively connected to the fixed seat 901 and the second end of the swing frame 902. When the second end of the swing frame 902 swings downward, 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 suction 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, so that the second baffle 802 moves upward. At the same time, the first end of the swing frame 902 will swing downward, so that the first baffle 801 moves downward.

[0111] It should be noted that since the swing trajectories at both ends of the swing frame 902 are arcs, and the movement trajectories of the first baffle 801 and the second baffle 802 are vertical lines, there is a horizontal gap at the connection position between the two baffles and the swing frame 902, so as to allow the swing frame 902 to drive the two baffles to move slightly in the horizontal direction during the movement, so that the overall structure can run smoothly.

[0112] In this embodiment, Fig. 9 and Fig.10 The schematic diagram shown is when the electromagnet 904 is powered on. At this time, the lower end of the second baffle 802 extends into the second guide groove 5022, the lower end of the first baffle 801 is away from the first guide groove 5021 and is higher than the upper end surface 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 away from the second guide groove 5022 and is higher than the upper end surface of the connecting rod 503.

[0113] As another situation of this embodiment, please refer to 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. Alternatively, the vertical lengths of the two baffles can be 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 state in which the first end is slightly higher than the second end. In this way, the distance between the electromagnet 904 and the magnetic suction block 903 will not be too far, which can ensure that the electromagnet 904 can attract the magnetic suction block 903 to make the swing frame 902 swing.

[0114] In this embodiment, if the valve product 100 is qualified after the test, there is no need to energize the electromagnet 904. When the drive disk 501 rotates, the valve product 100 will move in the second guide groove 5022 and be pushed to the outside of the carrier disk 4; if the valve product 100 is unqualified, the electromagnet 904 is energized again, so that when the drive disk 501 rotates, the valve product 100 moves in the first guide groove 5021 and stays on the inside of the carrier disk 4; since unqualified valve products 100 are few, the power supply state of the electromagnet 904 corresponding to the qualified valve product 100 is designed to be normally closed, which can save a lot of electricity and is more environmentally friendly.

[0115] In this embodiment, control buttons with the same number and distribution as all the electromagnets 904 can be set on the main frame 6. When a worker observes bubbles appearing in the test liquid of a certain valve product 100 during the inspection process, the worker presses the corresponding control button to energize the corresponding electromagnet 904, so that the unqualified valve product 100 can be preliminarily marked. When the drive disk 501 rotates, the unqualified valve product 100 can remain on the inner side of the carrier disk 4.

[0116] Example 5

[0117] This embodiment provides a valve sealing detection device, which, in addition to the technical solutions of the above embodiments, also discloses a driving method for the driving disk 501;

[0118] See also Figure 1 In this embodiment, the carrier 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;

[0119] The servo motor 11 has the advantages of precise rotation monitoring and fast response. The driving disk 501 is driven by the servo motor 11, the driving angle is precise, and the labor intensity of workers can be reduced.

[0120] Example 6

[0121] This embodiment discloses a method for using a valve sealing detection device, which is applicable to the valve sealing detection device in the above embodiment. The method comprises the following steps:

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

[0123] Step 2: Filling gas into the clamped valve product 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 testing liquid;

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

[0126] 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;

[0127] 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;

[0128] In this embodiment, the order of step 2 and step 3 can be exchanged, that is, the valve product 100 is first placed in the detection liquid, and then the gas is filled into the valve product 100.

[0129] In this embodiment, steps one to six can be completed by one worker or by multiple workers. Specifically, clamping the valve product 100 and picking up and collecting the valve product 100 require workers to have certain experience and operating skills, and generally require professional training. The observation process and the power-on process are relatively simple and can be mastered with simple training. Therefore, different workers can be assigned to the clamping valve product 100 stage, the power-on observation stage, and the picking up and collecting the valve product 100 stage. This can make rational use of labor, reduce the labor intensity of workers, and improve the inspection efficiency of the valve product 100. In addition, multiple inspection devices can be used for inspection at the same time, and one worker observes multiple devices, further improving the inspection efficiency of the valve product 100.

[0130] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection 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.

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 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).

5. The valve sealing detection device according to claim 4, 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.

6. The valve sealing detection device according to claim 5, 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).

7. The valve sealing detection device according to claim 6, 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).

8. The valve sealing detection device according to claim 4, 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).

9. A method for using a valve sealing detection device, applicable to the valve sealing detection device according to claim 7, 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