Double one-way valve sealing detection device

Abstract

The utility model discloses a double one-way valve sealing detection device comprising a pedestal, the pedestal is rotatably connected with a rotating disc through a rotating shaft, a rotating motor for driving the rotating disc to horizontally rotate is installed below the pedestal, four groups of bearing seats are symmetrically installed on the upper edge of the rotating disc, and a bracket is rotatably connected in each group of bearing seats. A bearing seat is arranged on the base, a turnover motor for driving the brackets to vertically rotate is arranged outside the bearing seat, a first detection station frame and a second detection station frame are arranged at the positions, corresponding to the two adjacent brackets, of the outer edge of the base respectively, air tightness detection mechanisms are arranged on the first detection station frame and the second detection station frame, and a plurality of positioning holes are formed in the upper surfaces of the brackets. According to the utility model, through the arrangement of the turntable and the bracket, the to-be-detected piece can be integrally overturned along with the vertical rotation of the bracket, the trouble of manual operation is reduced, and the to-be-detected piece can flow among a plurality of detection stations along with the horizontal rotation of the turntable and can be respectively detected at different stations, so that the detection efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve airtightness testing technology, and in particular to a double one-way valve sealing testing device. Background Technology

[0002] Double check valves, also known as dual-way check valves or double-port check valves, play a crucial role in control systems. They allow liquids or gases to flow in one or two directions, but not in reverse. The principle of a double check valve is to control the opening and closing of the valve by the pressure difference between the inflow and outflow channels, thereby achieving unidirectional flow. Therefore, after a double check valve is manufactured, it needs to be tested for airtightness to determine whether it is qualified.

[0003] Existing airtightness testing devices generally include a positioning testing platform and a testing mechanism that can move the testing head up and down. In use, the double check valve needs to be placed vertically on the testing position of the testing platform by the operator. Then, the operator waits for the testing mechanism to control the testing head to press down and test the seal of one end of the double check valve. After the test is completed, the operator manually flips the double check valve so that the other end is facing up for testing. After the other end is tested, the operator manually removes the double check valve, thus completing the complete airtightness testing process for a double check valve. However, the entire testing process involves a high degree of manual intervention and long waiting time between tests, resulting in low testing efficiency.

[0004] To address this issue, we propose a dual one-way valve sealing detection device. Utility Model Content

[0005] The purpose of this invention is to provide a dual one-way valve sealing detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A double one-way valve sealing detection device includes a base, on which a turntable is rotatably connected via a rotating shaft, and a rotary motor driving the turntable to rotate horizontally is installed under the base. Four sets of bearing seats are symmetrically installed on the upper edge of the turntable, and a bracket is rotatably connected inside each set of bearing seats. A flipping motor driving the bracket to rotate vertically is installed outside the bearing seats. Detection station frame one and detection station frame two are respectively provided on the outer edge of the base corresponding to the positions of two adjacent brackets. Both detection station frame one and detection station frame two are equipped with an airtightness detection mechanism. Several positioning holes are opened on the upper surface of the bracket. A movable ring is installed at the lower end of the positioning hole through a large spring, and a pair of clamping blocks are installed on the inner side of the movable ring through small springs.

[0008] In a further embodiment, the airtightness detection mechanism includes a telescopic component, the output end of which is connected to a mounting bracket, and a plurality of detection heads are installed under the mounting bracket, wherein each detection head corresponds one-to-one with a positioning hole on a bracket near the detection head.

[0009] In a further embodiment, a sealing gasket is connected to the lower outer edge of the detection head, and a pressure sensor is embedded in the lower surface of the detection head. An air pipe connector is also connected to the outer wall of the detection head, and the air pipe connector is connected to the cavity formed between the sealing gasket and the detection head.

[0010] In a further embodiment, the outer edge of the movable ring is provided with a protrusion, and the inner wall of the positioning hole is provided with a slot for the protrusion to slide through.

[0011] In a further embodiment, the connection end between the clamping block and the small spring is provided with a protruding rod, and the protruding rod slides through the mounting groove of the movable ring, and the small spring is housed in the mounting groove.

[0012] In a further embodiment, a grooved wheel is fixed on the outer wall of the rotating shaft on the base, and a notched disc is connected to the output shaft of the rotary motor. A rotating arm is connected to the center of the notched disc, and a cylindrical pin is connected to one end of the rotating arm that extends out of the notched disc. When the notched disc rotates, the cylindrical pin moves sequentially in the four straight grooves of the grooved wheel to control the intermittent rotation of the grooved wheel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by setting up a turntable and a bracket, allows the part to be tested to be flipped over as the bracket rotates vertically. This not only reduces the trouble of manual operation but also effectively shortens the waiting time for testing at both ends. Furthermore, the part to be tested can flow between multiple testing stations as the turntable rotates horizontally. The two ends of the double check valve can be tested at different stations, allowing the double check valves on the two sets of brackets to simultaneously perform sealing tests at different ends, effectively improving testing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the positioning hole of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal half-section structure of the positioning hole of this utility model;

[0018] Figure 4 This is a schematic diagram of the mounting frame and detection head installation structure of this utility model;

[0019] Figure 5This is a schematic diagram of the structure on the base of this utility model.

[0020] In the diagram: 1. Base; 2. Turntable; 3. Rotary motor; 4. Bearing seat; 5. Bracket; 51. Positioning hole; 6. Tilting motor; 7. Inspection station frame one; 8. Inspection station frame two; 9. Large spring; 10. Movable ring; 101. Protrusion; 11. Clamping block; 111. Protruding rod; 12. Small spring; 13. Telescopic component; 14. Mounting bracket; 15. Inspection head; 151. Sealing gasket; 152. Pressure sensor; 153. Air pipe connector; 16. Grooved wheel; 17. Notched disc; 18. Rotating arm; 19. Cylindrical pin. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 4, A double one-way valve sealing detection device, including a base 1. A turntable 2 is rotatably connected to the center of the base 1 through a rotating shaft, and a rotating motor 3 for driving the horizontal rotation of the turntable 2 is installed under the base 1. Four groups of bearing seats 4 are symmetrically installed on the upper edge of the turntable 2. Each group of bearing seats 4 has two, and a bracket 5 is rotatably connected in each group of bearing seats 4. The length direction of the bracket 5 is perpendicular to the radial direction of the turntable 2. A turnover motor 6 for driving the vertical rotation of the bracket 5 is installed on the outside of one of each group of bearing seats 4. A number of positioning holes 51 are opened on the upper surface of the bracket 5, and the positioning holes 51 are equally spaced along the length direction of the bracket 5 for inserting the parts to be detected. Detection station frames one 7 and detection station frames two 8 are respectively arranged at the positions of the base 1 corresponding to two adjacent brackets 5. The detection station frames one 7 and the detection station frames two 8 adopt a "C" - shaped structure, the bottom end of which is fixed to the base 1, and the top end extends above the bracket 5. Airtight detection mechanisms are provided on both the detection station frames one 7 and the detection station frames two 8.

[0025] Specifically, the airtight detection mechanism includes a telescopic member 13. The telescopic member 13 can be, but is not limited to, one of a cylinder, a hydraulic cylinder or an electric push rod. The telescopic member 13 is fixed on the top plate of the detection station frame, and its output shaft extends below the top plate and is connected to a mounting frame 14. A number of detection heads 15 are installed under the mounting frame 14. The detection heads 15 correspond one - to - one with the positioning holes 51 on the bracket 5 close to the detection heads 15, so as to detect multiple parts to be detected simultaneously. Further, a sealing washer 151 is connected to the outer edge under the detection head 15, and a pressure sensor 152 is embedded in the lower surface of the detection head 15. The pressure sensor 152 is electrically connected to an external controller (not shown in the figure) to collect the detection data of the pressure sensor 152. An air pipe joint 153 is also connected to the outer wall of the detection head 15, and the air pipe joint 153 is connected to the cavity formed between the sealing washer 151 and the detection head 15. The air pipe joint 153 is used to connect to an external air supply device (not shown in the figure), so as to inflate the inside of the double one - way valve through the air supply device and the air pipe joint 153 when the sealing washer 151 presses the double one - way valve port. The pressure sensor 152 can detect the air pressure state in this cavity. When the air pressure changes greatly within a certain period of time, it indicates that the double one - way valve leaks.

[0026] Please refer to Figure 2-3Considering that the double check valve needs to be rotated with the bracket 5, a movable ring 10 is installed at the lower port of the positioning hole 51 through a large spring 9. The inner diameter of the large spring 9 is larger than the inner diameter of the positioning hole 51, and a pair of clamping blocks 11 are installed on the inner side of the movable ring 10 through small springs 12. The clamping blocks 11 have an arc-shaped structure. When the double check valve is inserted into the positioning hole 51, it is clamped by the clamping blocks 11. The top of the double check valve protrudes from the upper surface of the bracket 5, while the bottom of the double check valve does not contact the base 1, so as to prevent it from being blocked by the base 1 when it is rotated. Due to the setting of the large spring 9, when the detection head 15 is pressed down, the double check valve can drive the clamping blocks 11 and the movable ring 10 to move down as a whole, and the large spring 9 extends, so that the bottom of the double check valve can fit against the base 1, maintaining its stability during detection.

[0027] To prevent the movable ring 10 and the clamping block 11 from shifting during flipping, a protrusion 101 is provided on the outer edge of the movable ring 10, and a slot is provided on the inner wall of the positioning hole 51 for the protrusion 101 to slide through, which is used to limit the movable ring 10. The connection end of the clamping block 11 and the small spring 12 is provided with a protrusion 111, which slides through the mounting groove of the movable ring 10. The protrusion 111 adopts a non-cylindrical structure so that it will not deflect, and the small spring 12 is housed in the mounting groove, which can limit the clamping block 11.

[0028] Please see Figure 5 Considering that the turntable 2 needs to pause for a period of time to wait for inspection or loading / unloading when it drives the bracket 5 to rotate to different positions, the turntable 2 is set to rotate intermittently relative to the base 1. A grooved wheel 16 is fixed on the outer wall of the rotating shaft on the base 1. A notched disc 17 is connected to the output shaft of the rotary motor 3. The axis of the notched disc 17 is connected to the rotating arm 18, and a cylindrical pin 19 is connected to one end of the rotating arm 18 that extends out of the notched disc 17. When the notched disc 17 rotates, the cylindrical pin 19 moves in sequence in the four straight grooves of the grooved wheel 16 to control the intermittent rotation of the grooved wheel 16.

[0029] Working principle: The operator first places the parts to be inspected into the positioning holes 51 of the first set of brackets 5. The turntable 2 rotates 90°, and the first set of brackets 5 moves closer to the first inspection station frame 7 for the first end inspection. At this time, the second set of brackets 5 moves to the operator's position to wait for the parts to be inspected. After the inspection is completed, the turntable 2 continues to rotate 90°, and the first set of brackets 5 rotates vertically 180° to move closer to the second inspection station frame 8. The second set of brackets 5 moves closer to the first inspection station frame 7, and the third set of brackets 5 moves back to the operator's position. The parts to be inspected on the first set of brackets 5 undergo the second end inspection, and the parts to be inspected on the second set of brackets 5 undergo the first end inspection. The turntable 2 continues to rotate 90°, and the second set of brackets 5 moves closer to the second inspection station frame 8, the third set of brackets 5 moves closer to the first inspection station frame 7, and the fourth set of brackets 5 moves back to the operator's position. The first set of brackets 5 rotates to the unloading position.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual one-way valve sealing detection device, comprising a base (1), characterized in that: The base (1) is rotatably connected to a turntable (2) via a rotating shaft, and a rotary motor (3) for driving the turntable (2) to rotate horizontally is installed under the base (1). Four sets of bearing seats (4) are symmetrically installed on the upper edge of the turntable (2). A bracket (5) is rotatably connected inside each set of bearing seats (4), and a flip motor (6) for driving the bracket (5) to rotate vertically is installed outside the bearing seats (4). The outer edge of the base (1) is provided with a detection station frame one (7) and a detection station frame two (8) respectively corresponding to the positions of two adjacent brackets (5). Both the detection station frame one (7) and the detection station frame two (8) are provided with an airtightness detection mechanism. Several positioning holes (51) are opened on the upper surface of the bracket (5). A movable ring (10) is installed at the lower end of the positioning hole (51) through a large spring (9), and a pair of clamping blocks (11) are installed on the inner side of the movable ring (10) through small springs (12).

2. The dual one-way valve sealing detection device according to claim 1, characterized in that: The airtightness testing mechanism includes a telescopic component (13), the output end of which is connected to a mounting bracket (14), and a plurality of testing heads (15) are installed under the mounting bracket (14). The testing heads (15) correspond one-to-one with the positioning holes (51) on the bracket (5) near the testing heads (15).

3. The dual one-way valve sealing detection device according to claim 2, characterized in that: A sealing gasket (151) is connected to the lower outer edge of the detection head (15), and a pressure sensor (152) is embedded in the lower surface of the detection head (15). A tracheal connector (153) is also connected to the outer wall of the detection head (15), and the tracheal connector (153) is connected to the cavity formed between the sealing gasket (151) and the detection head (15).

4. The dual one-way valve sealing detection device according to claim 1, characterized in that: The outer edge of the movable ring (10) is provided with a protrusion (101), and the inner wall of the positioning hole (51) is provided with a slot for the protrusion (101) to slide through.

5. The dual one-way valve sealing detection device according to claim 1, characterized in that: The connection end of the clamp (11) and the small spring (12) is provided with a protruding rod (111), and the protruding rod (111) slides through the mounting groove of the movable ring (10), and the small spring (12) is housed in the mounting groove.

6. The dual one-way valve sealing detection device according to claim 1, characterized in that: A grooved wheel (16) is fixed on the outer wall of the rotating shaft on the base (1). A notched disc (17) is connected to the output shaft of the rotary motor (3). A rotating arm (18) is connected to the center of the notched disc (17), and a cylindrical pin (19) is connected to one end of the rotating arm (18) that extends out of the notched disc (17). When the notched disc (17) rotates, the cylindrical pin (19) moves in sequence in the four straight grooves of the grooved wheel (16) to control the intermittent rotation of the grooved wheel (16).

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