Auxiliary device for detecting air tightness of pressure container

Abstract

The utility model discloses an auxiliary device for detecting the air tightness of a pressure container, which relates to the technical field of pressure container production and manufacturing and comprises a threaded sleeve. The frame bodies annularly surround the outer circumferential wall of the threaded sleeve, and the frame bodies are detachably and fixedly connected with the threaded sleeve and can move along the threaded sleeve; the plurality of positioning structures are respectively arranged on the plurality of frame bodies; the positioning structure comprises a movable plate which is movably arranged on the frame body, and the movable plate moves in the radial direction of the threaded sleeve; the push rods are L-shaped, and one ends of the push rods are fixedly connected to the movable plate; the plurality of rubber pads are respectively arranged at the other ends of the push rods; the positioning device has the advantages of being convenient to use, improving positioning accuracy, improving positioning efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel production and manufacturing, in particular to an auxiliary device for air tightness detection of pressure vessels. Background Art

[0002] After the pressure vessel is manufactured, it is necessary to test the air tightness of the pressure vessel. For example, patent application number CN202223423029.X discloses a pressure vessel rapid leakage detection device. This patent places the pressure vessel to be tested on the placement plate 41, and ensures that the center of the placement plate 41 is located at the center of the placement plate 41 as much as possible. Then, the servo motor 47 is turned on, and the servo motor 47 is used to drive the threaded rod 45 to rotate. The threaded connection between the threaded rod 45 and the motor fixing plate 43 is used to make the motor fixing plate 43 slide back and forth in the adjustment groove 14. During the sliding process, due to the design of the limiting slide plate 44, the motor fixing plate 43 always keeps sliding in a fixed horizontal plane until the pressure vessel on the placement plate 41 is located on one side of the detection groove 15. The servo motor 47 is turned off, and then the number one is started. The electric push rod 25 causes the top plate 24 to extend and retract until the top plate 24 is located directly above the pressure vessel. Then, the No. 2 electric push rod 27 is turned on, and the No. 2 electric push rod 27 is used to drive the cover plate 26 to move downward. After the cover plate 26 moves down to cover the top of the pressure vessel, one end of the steam conduit 22 is located inside the pressure vessel. Then, the solenoid valve on the steam conduit 22 is turned on, allowing the steam in the steam storage tank 21 to flow into the pressure vessel through the steam conduit 22. After a period of time, the internal pressure of the pressure vessel reaches a certain level, and the solenoid valve is closed. At this time, if there is a gap in the pressure vessel, the water vapor in the pressure vessel will be ejected from the gap under the action of the internal pressure of the pressure vessel. The water vapor is sprayed on the test paper in the detection tank 15, causing the test paper to change color, thereby judging whether there is a leak in the pressure vessel and where the leak is.

[0003] When purchasing and using this equipment, there is a problem that the pressure vessel on the placement plate needs to be positioned manually, and this positioning method has low accuracy and low efficiency. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an auxiliary device for air tightness detection of pressure vessels, so as to solve the problems of low precision and low efficiency of the air tightness detection method of pressure vessels in the prior art described in the background art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary device for detecting air tightness of a pressure vessel, comprising:

[0006] threaded sleeve;

[0007] A plurality of frames are annularly arranged around the outer circumferential wall of the threaded sleeve, the frames being detachably fixedly connected to the threaded sleeve and being movable along the threaded sleeve;

[0008] A plurality of positioning structures are respectively arranged on the plurality of frames;

[0009] The positioning structure includes

[0010] A movable plate is movably arranged on the frame, and the movable plate moves along the radial direction of the threaded sleeve;

[0011] A plurality of push rods are L-shaped, one end of each of which is fixedly connected to the movable plate;

[0012] A plurality of rubber pads are respectively arranged at the other end of the push rod.

[0013] Preferably, the positioning structure further comprises a ball screw module and a plurality of guide rods arranged on the frame, the guide rods slide through the movable plate, and the ball screw of the ball screw module is threadedly connected to the movable plate.

[0014] Preferably, the frame is provided with two plug-in plates, each having a positioning hole, a positioning barrel being sleeved on the plug-in plate, a second screw being threadedly connected to the positioning barrel, the second screw extending into the positioning hole, the two positioning barrels being fixedly connected by a connecting plate, and the positioning barrel, the connecting plate and the threaded sleeve being detachably and movably fixedly connected.

[0015] Preferably, a circular groove is provided on the outer circumferential wall of the threaded sleeve, and the positioning barrel slides into the groove. A plurality of threaded holes arranged in a ring are also provided on the inner circumferential wall of the groove. The connecting plate has a first screw that slides through the connecting plate, and the first screw is threadedly connected to the threaded hole.

[0016] The beneficial effects of adopting the above technical solution are:

[0017] The present application sets up several positioning structures in which the movable plates can drive the push rod to move, so that the push rod can move along the radial direction of the threaded sleeve, so that the push rod can push the pressure vessel on the placement plate to move, thereby enabling the pressure vessel to move to the center of the placement plate, which can reduce the labor intensity of workers and improve the accuracy of placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the auxiliary device for air tightness detection of pressure vessels according to the utility model.

[0019] Figure 2 It is a schematic diagram of the frame of the utility model.

[0020] Figure 3 It is a top sectional view of the threaded sleeve of the utility model.

[0021] Among them: threaded sleeve 10, positioning barrel 20, connecting plate 21, first screw 22, threaded hole 23, slide groove 24, inserting plate 30, positioning hole 31, second screw 32, moving plate 40, ball screw module 41, guide rod 42, frame 43, push rod 50, rubber pad 60. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 ,In the first embodiment, an auxiliary device for testing air tightness of a pressure vessel includes a threaded sleeve 10;

[0024] A plurality of frames 43 are annularly arranged around the outer circumferential wall of the threaded sleeve 10. The frames 43 are detachably fixed to the threaded sleeve 10 and can move along the threaded sleeve 10.

[0025] A plurality of positioning structures are respectively provided on the plurality of frames 43;

[0026] The positioning structure includes

[0027] The movable plate 40 is movably disposed on the frame 43 and moves along the radial direction of the threaded sleeve 10;

[0028] A plurality of push rods 50 are L-shaped, one end of which is fixedly connected to the movable plate 40;

[0029] A plurality of rubber pads 60 are respectively disposed at the other end of the push rod 50 .

[0030] This embodiment is implemented as follows:

[0031] When the present application is in use, the threaded sleeve 10 is connected to the thread on the outer circumferential wall of the placement plate. First, the position of the frame 43 on the threaded sleeve 10 is adjusted according to the shape of the pressure vessel, and then the frame 43 is fixed to the threaded sleeve 10. When the pressure vessel is placed on the placement plate, the movable plate 40 moves, driving the push rod 50 to move, so that the rubber pad on the push rod 50 can push the pressure vessel to move, which does not require manual positioning and improves the positioning accuracy.

[0032] Compared with the existing technology, the advantages of this application are improved positioning accuracy and efficiency.

[0033] See also Figure 1 、 2 The positioning structure also includes a ball screw module 41 and a plurality of guide rods 42 arranged on the frame 43. The guide rods 42 slide through the movable plate 40. The ball screw of the ball screw module 41 is threadedly connected to the movable plate 40.

[0034] The ball screw module 41 can drive the moving plate 40 to move along the guide rod 42 .

[0035] See also Figure 1 、 2 Two plug-in plates 30 are provided on the frame 43, each having a positioning hole 31, a positioning barrel 20 is sleeved on the plug-in plate 30, a second screw 32 is threadedly connected to the positioning barrel 20, the second screw 32 extends into the positioning hole 31, and the two positioning barrels 20 are fixedly connected by a connecting plate 21, and the positioning barrel 20, the connecting plate 21 and the threaded sleeve 10 are detachably and movably fixedly connected.

[0036] The inserting plate 30 on the frame 43 can be inserted into the positioning barrel 20 , and then the second screw 32 is rotated so that the second screw 32 can enter the positioning hole 31 .

[0037] See also Figure 3 A circular groove 24 is provided on the outer circumferential wall of the threaded sleeve 10, and the positioning barrel 20 slides into the groove 24. A plurality of threaded holes 23 arranged in a ring are also provided on the inner circumferential wall of the groove 24. The connecting plate 21 has a first screw 22 that slides through the connecting plate 21, and the first screw 22 is threadedly connected to the threaded hole 23.

[0038] By connecting the first screw 22 to the threaded hole 23 , the end of the first screw 22 can push the connecting plate 21 to move, so that the connecting plate 21 drives the positioning barrel 20 to be pressed tightly into the sliding groove 24 .

[0039] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. An auxiliary device for testing air tightness of a pressure vessel, characterized in that: include threaded sleeve; A plurality of frames are annularly arranged around the outer circumferential wall of the threaded sleeve, the frames being detachably fixedly connected to the threaded sleeve and being movable along the threaded sleeve; A plurality of positioning structures are respectively arranged on the plurality of frames; The positioning structure includes A movable plate is movably arranged on the frame, and the movable plate moves along the radial direction of the threaded sleeve; A plurality of push rods are L-shaped, one end of each of which is fixedly connected to the movable plate; A plurality of rubber pads are respectively arranged at the other end of the push rod.

2. The auxiliary device for air tightness detection of a pressure vessel according to claim 1, characterized in that: The positioning structure also includes a ball screw module and a plurality of guide rods arranged on the frame. The guide rods slide through the movable plate. The ball screw of the ball screw module is threadedly connected with the movable plate.

3. The auxiliary device for air tightness detection of a pressure vessel according to claim 2, characterized in that: The frame is provided with two plug-in plates, each of which has a positioning hole. A positioning barrel is sleeved on the plug-in plate. The positioning barrel is connected to a second screw by a thread, and the second screw extends into the positioning hole. The two positioning barrels are fixedly connected by a connecting plate. The positioning barrel, the connecting plate and the threaded sleeve are detachably and movably fixedly connected.

4. The auxiliary device for air tightness detection of a pressure vessel according to claim 3, characterized in that: A circular sliding groove is provided on the outer circumferential wall of the threaded sleeve, and the positioning barrel slides into the sliding groove. A plurality of threaded holes arranged in a ring are also provided on the inner circumferential wall of the sliding groove. The connecting plate has a first screw that slides through the connecting plate, and the first screw is threadedly connected to the threaded hole.

Images