Portable valve airtightness detection equipment

Abstract

The invention discloses portable valve airtightness detection equipment, and relates to the technical field of valve detection. Comprising a detection box, the interior of the detection box is divided into three detection areas through two second partition plates, and each area corresponds to hole sites in the two ends and the top of a valve; first butt joint mechanisms are arranged in detection areas located at the two ends of the interior of the detection box respectively and used for being in butt joint with hole sites in the two ends of a valve, a mounting frame is arranged on the top of the detection box, and a second butt joint mechanism is arranged on the mounting frame and used for being in butt joint with a hole site in the top of the valve. The air tightness detection of the valve can be conveniently completed, the operation is simple, the butt joint is convenient, different areas are separated, and the air tightness problem of each butt joint area of the valve can be directly judged.

Description

Technical Field

[0001] The invention relates to the technical field of valve detection, and in particular to a portable valve air tightness detection device. Background Art

[0002] Valve air tightness detection is an important test step to ensure that the valve will not leak gas or liquid during operation. This detection process is usually carried out after the valve is manufactured, repaired or installed to confirm that the valve has good sealing performance and is suitable for systems that need to maintain gas or liquid pressure. There are many existing detection methods, one of the most common of which is through bubble detection. The valve is immersed in water and the detection gas is passed through. If there is a problem with the air tightness, bubbles will be generated in the water. This method is relatively cumbersome to operate, and the valve docking operation is a relatively complicated link. Based on this, the present invention proposes a detection device that can conveniently complete the air tightness detection of the valve. It is simple to operate, convenient to dock, and separates different areas. It can directly judge the air tightness problems of each docking area of ​​the valve. Summary of the invention

[0003] In view of the above technical problems, the present invention can conveniently complete the air tightness detection of the valve, is simple to operate, convenient to connect, and separates different areas, so that the air tightness problems of each connecting area of ​​the valve can be directly judged.

[0004] The technical solution used in the present invention is: a convenient valve air tightness detection device, including a detection box, the interior of the detection box is divided into three detection areas by two partition plates, and each area corresponds to the hole positions at both ends and the top of the valve; a docking mechanism 1 is respectively arranged in the detection areas at both ends of the detection box, for docking with the hole positions at both ends of the valve, a mounting frame is arranged on the top of the detection box, and a docking mechanism 2 is arranged on the mounting frame, for docking with the hole positions on the top of the valve; the docking mechanism 2 includes a partition plate 1 that is lifted and arranged on the mounting frame, and a clamping docking mechanism is arranged on the inner side of the partition plate 1, for fixing and docking the valve; the docking mechanism 1 includes a sliding seat slidably mounted on the outer side of the detection box, a connecting shaft is connected to the sliding seat, a mounting ring is fixedly connected to the connecting shaft, and a clamping mechanism is arranged in an array on the mounting ring, for pressing the end of the connecting shaft with the hole position at the end of the valve; the clamping mechanism includes a mounting swivel seat rotatably mounted on the circumference of the mounting ring, two clamping plates are slidably mounted on the mounting swivel seat, and a pressure plate is telescopically slidable on the two end faces of the mounting ring.

[0005] Furthermore, the second docking mechanism includes a gas transmission box and a lifting cylinder arranged on a mounting frame, the lifting cylinder is used to control the movement of a partition plate; the clamping docking mechanism includes a docking cylinder arranged on a partition plate, a docking portion 1 is arranged on the telescopic rod of the docking cylinder, the docking portion 1 is connected to the bottom of the gas transmission box, and the docking portion 1 is connected to the top hole of the valve.

[0006] Furthermore, the partition plate 1 and the partition plate 2 are respectively provided with grooves for positioning the pipeline area of ​​the valve, and the partition plate 1 and the partition plate 2 are butted against each other to separate the three detection areas inside the detection box.

[0007] Furthermore, a fixed oil cylinder is also provided on the partition plate, and a clamping support portion is provided on the telescopic rod of the fixed oil cylinder. The clamping support portion is L-shaped, and the lateral end of the clamping support portion is used to support the top hole position of the valve.

[0008] Furthermore, a filling box is arranged on the side of the detection box, and the filling box is connected with the three detection areas inside the detection box respectively to transmit the detection water source; a motor and a screw rod are arranged on the outside of the detection box, and the motor is used to drive the screw rod, and the screw rod and the sliding seat on the docking mechanism form a spiral pair.

[0009] Furthermore, the docking mechanism 1 includes a control gear ring rotatably mounted on a mounting ring, an incomplete meshing gear ring 1 is arranged on the inner side of the control gear ring, and an incomplete meshing gear ring 2 is arranged on the outer side, which are used to drive the clamping mechanism; a control motor is arranged on the circumference of the mounting ring, a control gear is arranged on the output shaft of the control motor, and the control gear is meshed with the end face of the control gear ring.

[0010] Furthermore, the clamping mechanism includes a rotating shaft rotatably mounted on the mounting ring, with inclined columns connected to both ends of the rotating shaft, and a connecting gear 1 is provided on the rotating shaft, a connecting gear 2 is connected to the end surface of the mounting swivel seat, and a spring 1 is connected between the two clamping plates; the incomplete meshing gear ring 1 is meshed with the connecting gear 2 to drive the mounting swivel seat; the incomplete meshing gear ring 2 is meshed with the connecting gear 1 to drive the inclined column.

[0011] Furthermore, the clamping mechanism also includes a contact portion arranged on the pressure plate, the contact portion contacts the inclined end surface of the inclined column, and a second spring is connected between the pressure plate and the end surface of the mounting ring; to control the rotation of the gear ring, the incompletely meshing gear ring 1 first meshes with the connecting gear 2 to drive the mounting swivel seat to rotate, so that the two clamping plates are respectively located at the hole position at the end of the valve and on both sides of the end of the connecting shaft, the incompletely meshing gear ring 2 meshes with the connecting gear 1 to drive the inclined column to rotate, and the inclined column pushes the contact portion to control the pressure plate to press the clamping plate.

[0012] Compared with the prior art, the present invention has the following advantages: (1) the lifting and lowering of the partition plate 1 is controlled by the mounting frame lifting cylinder to transfer the valve to the inside of the detection box, and the two end areas of the valve are located in the detection areas at both ends of the detection box, and the top hole area of ​​the valve is located in the middle detection area. The partition plate 1 is docked with the partition plate 2 to separate the three detection areas, and the bubbles in each detection area can be directly judged; (2) the gas transmission box transmits the detection gas, that is, transmits the detection gas to the inside of the valve for detection; when the valve is well sealed, no bubbles will appear in the three detection areas. When one of the docking areas has a sealing problem, bubbles will appear in the corresponding detection area, thereby completing the sealing detection of different docking holes of the valve; (3) the present invention is easy to dock and easy to operate. The docking mechanism 1 and the docking mechanism 2 can automatically complete the docking and pressing operation, and the docking part adopts the docking flange when the valve is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the second docking mechanism of the present invention.

[0015] Figure 3 It is a schematic diagram of the partial structure of the docking mechanism of the present invention.

[0016] Figure 4 It is a schematic diagram of an installation structure of a docking mechanism of the present invention.

[0017] Figure 5 This is a schematic diagram of the connecting shaft installation structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the control gear ring installation structure of the present invention.

[0019] Figure 7 This is a schematic diagram of the inner and outer structures of the control gear ring of the present invention.

[0020] Figure 8 It is a schematic diagram of the structure of the clamping mechanism of the present invention.

[0021] Fig. 9 It is a schematic diagram of the partial installation structure of the clamping mechanism of the present invention.

[0022] : 1-test box; 2-filling box; 3-motor 1; 4-screw 1; 5-slide; 6-mounting frame; 7-lifting cylinder; 8-gas transmission box; 9-partition plate 1; 10-docking cylinder; 11-docking part 1; 12-fixing cylinder; 13-clamping support part; 14-partition plate 2; 15-connecting shaft; 16-mounting ring; 17-control gear; 18-control gear ring; 1801-incomplete meshing gear ring 1; 1802-incomplete meshing gear ring 2; 19-control motor; 20-rotating shaft; 21-oblique column; 22-connecting gear 1; 23-mounting swivel seat; 24-connecting gear 2; 25-clamping plate; 26-spring 1; 27-pressure plate; 28-contact part; 29-spring 2. DETAILED DESCRIPTION

[0023] Example: Figures 1 to 9 As shown, the interior of the detection box 1 is divided into three detection areas by two partition plates 14, and each area corresponds to the holes at both ends and the top of the valve; a docking mechanism 1 is respectively provided in the detection areas at both ends of the detection box 1, which is used to dock with the holes at both ends of the valve, and a mounting frame 6 is provided on the top of the detection box 1, and a docking mechanism 2 is provided on the mounting frame 6, which is used to dock with the holes at the top of the valve; the docking mechanism 2 includes a partition plate 9 that is lifted and lowered on the mounting frame 6, and a clamping docking mechanism is provided on the inner side of the partition plate 9 for fixing and docking the valve; the docking mechanism 1 includes a slide seat 5 slidably mounted on the outside of the detection box 1, a connecting shaft 15 is connected to the slide seat 5, a mounting ring 16 is fixedly connected to the connecting shaft 15, and a clamping mechanism is arranged in an array on the mounting ring 16 for pressing the end of the connecting shaft 15 with the hole at the end of the valve; the clamping mechanism includes a mounting swivel 23 rotatably mounted on the circumference of the mounting ring 16, two clamping plates 25 are slidably mounted on the mounting swivel 23, and a pressure plate 27 is telescopically slidable on the two end faces of the mounting ring 16.

[0024] The docking mechanism 2 includes a gas transmission box 8 and a lifting cylinder 7 arranged on the mounting frame 6, and the lifting cylinder 7 is used to control the movement of the partition plate 19; the clamping docking mechanism includes a docking cylinder 10 arranged on the partition plate 19, and a docking part 11 is arranged on the telescopic rod of the docking cylinder 10, and the docking part 11 is connected to the bottom of the gas transmission box 8, and the docking part 11 is connected to the hole at the top of the valve; the partition plate 19 and the partition plate 2 14 are respectively provided with grooves for locating the pipeline area of ​​the valve, and the partition plate 19 and the partition plate 2 14 are docked to place the inside of the detection box 1 The three detection areas of the detection box 1 are separated; a fixed oil cylinder 12 is also arranged on the partition plate 9, and a clamping support part 13 is arranged on the telescopic rod of the fixed oil cylinder 12. The clamping support part 13 is L-shaped, and the lateral end of the clamping support part 13 is used to support the top hole of the valve; a filling box 2 is arranged on the side of the detection box 1, and the filling box 2 is respectively connected with the three detection areas inside the detection box 1 to transmit the detection water source; a motor 3 and a screw rod 4 are arranged on the outside of the detection box 1, and the motor 3 is used to drive the screw rod 4, and the screw rod 4 and the slide seat 5 on the docking mechanism 1 form a spiral pair.

[0025] The docking mechanism 1 includes a control gear ring 18 rotatably mounted on the mounting ring 16, an incomplete meshing gear ring 1801 is arranged on the inner side of the control gear ring 18, and an incomplete meshing gear ring 2 1802 is arranged on the outer side, which is used to drive the clamping mechanism; a control motor 19 is arranged on the circumference of the mounting ring 16, and a control gear 17 is arranged on the output shaft of the control motor 19, and the control gear 17 is meshed with the end face of the control gear ring 18; the clamping mechanism includes a rotating shaft 20 rotatably mounted on the mounting ring 16, and the two ends of the rotating shaft 20 are respectively connected to inclined columns 21, and a connecting gear 1 22 is arranged on the rotating shaft 20, and a connecting gear 2 24 is connected to the end face of the mounting rotating seat 23, and a spring 1 26 is connected between the two clamping plates 25; the incomplete meshing gear ring 1801 and the connecting gear 2 24 meshes with each other to drive the installation swivel seat 23; the incomplete meshing gear ring 2 1802 meshes with the connecting gear 1 22 to drive the inclined column 21; the clamping mechanism also includes a contact portion 28 arranged on the pressure plate 27, the contact portion 28 contacts the inclined end surface of the inclined column 21, and a spring 29 is connected between the pressure plate 27 and the end surface of the mounting ring 16; the gear ring 18 is controlled to rotate, and the incomplete meshing gear ring 1 1801 first meshes with the connecting gear 2 24 to drive the installation swivel seat 23 to rotate, so that the two clamping plates 25 are respectively located at the end hole of the valve and the two sides of the end of the connecting shaft 15, and the incomplete meshing gear ring 2 1802 meshes with the connecting gear 1 22 to drive the inclined column 21 to rotate, and the inclined column 21 pushes the contact portion 28 to control the pressure plate 27 to press the clamping plate 25.

[0026] The operation principle is as follows: the valve workpiece is installed on the partition plate 9, specifically, the top hole of the valve is located on the inner side of the clamping support part 13, and the clamping support part 13 is controlled by the fixed cylinder 12 to support the top hole of the valve, that is, the lateral end of the clamping support part 13 supports the top hole of the valve; the pipeline areas at both ends of the valve are located in the grooves on the partition plate 9, and the partition plate 9 is lifted and lowered by the mounting frame 6 lifting cylinder 7 to transfer the valve to the inside of the detection box 1, and the two end areas of the valve are located in the detection areas at both ends of the inside of the detection box 1, and the top hole area of ​​the valve is located in the middle detection area, and the partition plate 9 is docked with the partition plate 2 14 to separate the three detection areas; the docking part 11 is controlled to move by the docking cylinder 10, and the docking part 11 is docked with the top hole of the valve to complete the sealing.

[0027] For the hole at the end of the valve, the motor 3 works and the screw rod 4 rotates to move the slide 5, that is, the connecting shaft 15 and the mounting ring 16 move, and the end of the connecting shaft 15 docks with the hole at the end of the valve. The motor 19 is controlled to work and the gear ring 18 is controlled to rotate. The incompletely meshing gear ring 1801 first meshes with the connecting gear 24 to drive the mounting swivel seat 23 to rotate, so that the two clamping plates 25 are respectively located at the hole at the end of the valve and the two sides of the end of the connecting shaft 15. The incompletely meshing gear ring 2102 meshes with the connecting gear 122 to drive the inclined column 21 to rotate. The inclined column 21 pushes the contact portion 28 to control the sliding of the pressure plate 27 and to press the clamping plate 25 to complete the pressing of the hole at the end of the valve and the end of the connecting shaft 15 to complete the sealing.

[0028] Water is added to the three detection areas inside the detection box 1 through the filling box 2 until the top hole of the valve is submerged. The gas transmission box 8 transmits the detection gas, that is, transmits the detection gas to the inside of the valve for detection. When the valve is well sealed, no bubbles will appear in the three detection areas. When there is a sealing problem in one of the docking areas, bubbles will appear in the corresponding detection area, thereby completing the sealing detection of different docking holes of the valve. It should be noted that, in this embodiment, the parts docking with the various holes of the valve, such as the end of the docking part 11 and the end of the connecting shaft 15, can adopt flange end plates that are subsequently actually docked with the valve.

Claims

1. A portable valve air tightness testing device, comprising a testing box (1), characterized in that: The interior of the detection box (1) is divided into three detection areas by two partition plates (14), each area corresponding to the holes at both ends and the top of the valve; a docking mechanism (1) is respectively provided in the detection areas at both ends of the detection box (1) for docking with the holes at both ends of the valve; a mounting frame (6) is provided on the top of the detection box (1); a docking mechanism (2) is provided on the mounting frame (6) for docking with the holes at the top of the valve; the docking mechanism (2) comprises a partition plate (9) which is lifted and arranged on the mounting frame (6); a clamping docking mechanism is provided on the inner side of the partition plate (9) for fixing and A docking valve; a docking mechanism comprises a slide seat (5) slidably mounted on the outside of a detection box (1), the slide seat (5) being connected to a connecting shaft (15), a mounting ring (16) being fixedly connected to the connecting shaft (15), a clamping mechanism being arranged in an array on the mounting ring (16) for clamping the end of the connecting shaft (15) against the hole at the end of the valve; the clamping mechanism comprises a mounting swivel seat (23) rotatably mounted on the circumference of the mounting ring (16), two clamping plates (25) being slidably mounted on the mounting swivel seat (23), and a pressure plate (27) being telescopically slidable on two end faces of the mounting ring (16).

2. A portable valve air tightness detection device according to claim 1, characterized in that: The second docking mechanism comprises a gas transmission box (8) and a lifting cylinder (7) arranged on a mounting frame (6), wherein the lifting cylinder (7) is used to control the movement of a partition plate (9); the clamping docking mechanism comprises a docking cylinder (10) arranged on the partition plate (9), wherein a docking portion (11) is arranged on a telescopic rod of the docking cylinder (10), wherein the docking portion (11) is connected to the bottom of the gas transmission box (8), and the docking portion (11) is connected to a hole at the top of the valve.

3. A portable valve air tightness detection device according to claim 2, characterized in that: The first partition plate (9) and the second partition plate (14) are respectively provided with grooves for positioning the pipeline area of ​​the valve, and the first partition plate (9) and the second partition plate (14) are butted against each other to separate the three detection areas inside the detection box (1).

4. A portable valve air tightness detection device according to claim 3, characterized in that: The partition plate 1 (9) is also provided with a fixed oil cylinder (12), and a clamping support portion (13) is provided on the telescopic rod of the fixed oil cylinder (12). The clamping support portion (13) is L-shaped, and the lateral end of the clamping support portion (13) is used to support the top hole of the valve.

5. The portable valve air tightness detection device according to claim 1, characterized in that: A filling box (2) is arranged on the side of the detection box (1), and the filling box (2) is respectively connected to the three detection areas inside the detection box (1) to transmit the detection water source; a motor (3) and a screw rod (4) are arranged on the outside of the detection box (1), and the motor (3) is used to drive the screw rod (4), and the screw rod (4) and the slide seat (5) on the docking mechanism (1) form a spiral pair.

6. A portable valve air tightness detection device according to claim 5, characterized in that: The docking mechanism 1 comprises a control gear ring (18) rotatably mounted on a mounting ring (16); an incomplete meshing gear ring 1 (1801) is arranged on the inner side of the control gear ring (18); and an incomplete meshing gear ring 2 (1802) is arranged on the outer side of the control gear ring (18), which is used to drive the clamping mechanism; a control motor (19) is arranged on the circumference of the mounting ring (16); a control gear (17) is arranged on the output shaft of the control motor (19); and the control gear (17) meshes with the end face of the control gear ring (18).

7. A portable valve air tightness detection device according to claim 6, characterized in that: The clamping mechanism comprises a rotating shaft (20) rotatably mounted on a mounting ring (16), the two ends of the rotating shaft (20) are respectively connected to inclined columns (21), a connecting gear 1 (22) is arranged on the rotating shaft (20), a connecting gear 2 (24) is connected to the end surface of the mounting rotating seat (23), and a spring 1 (26) is connected between two clamping plates (25); an incomplete meshing gear ring 1 (1801) meshes with the connecting gear 2 (24) to drive the mounting rotating seat (23); and an incomplete meshing gear ring 2 (1802) meshes with the connecting gear 1 (22) to drive the inclined column (21).

8. The portable valve air tightness detection device according to claim 7, characterized in that: The clamping mechanism further comprises a contact portion (28) arranged on the pressure plate (27), the contact portion (28) being in contact with the oblique end surface of the inclined column (21), and a second spring (29) being connected between the pressure plate (27) and the end surface of the mounting ring (16); the ring gear (18) is controlled to rotate, the first incomplete meshing ring gear (1801) first meshes with the second connecting gear (24) to drive the mounting swivel seat (23) to rotate, so that the two clamping plates (25) are respectively located at the hole position at the end of the valve and at both sides of the end of the connecting shaft (15), the second incomplete meshing ring gear (1802) meshes with the first connecting gear (22) to drive the inclined column (21) to rotate, and the inclined column (21) pushes the contact portion (28) to control the pressure plate (27) to press the clamping plate (25).

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