Clamping and sealing tool for pressure vessel detection

Abstract

The utility model relates to the field of pressure vessels, in particular to a clamping and sealing tool for pressure vessel detection, which comprises a butt-joint cylinder, a rubber bushing is fixedly connected to the inner wall of the butt-joint cylinder, and a trapezoidal butt-joint pipe is arranged on one side, far away from the rubber bushing, of the butt-joint cylinder. When the butt joint cylinder is sleeved on the connector of the pressure container, the rubber bushing penetrates through the connector, the rubber pad is pushed by the push plate to be attached to the outer surface of the connector at the moment, so that the butt joint cylinder is fixed, and the trapezoidal butt joint pipe penetrates through the rubber bushing through the matching of the threaded cylinder II and the threads, so that the butt joint cylinder is fixed. And along with follow-up continuous entering, the size of the pipe is expanded, the pipe is tightly attached to the inner wall of the connector, due to the action of a push plate and a rubber pad, when pressure is large, the risk of separation does not exist, and through the special shape of the trapezoidal butt joint pipe, the pipe can adapt to the inner diameter of the connector on the premise that the sealing performance is guaranteed; and the application range of the device is greatly expanded.

Description

Technical Field

[0001] The utility model relates to the field of pressure vessels, in particular to a clamping and sealing tool for detecting pressure vessels. Background Art

[0002] Pressure vessels refer to closed equipment that holds gas or liquid and bears a certain pressure. Pressure vessels are divided into reaction vessels, heat transfer vessels, separation vessels and storage and transportation vessels according to their uses. The design pressure of pressure vessels is divided into four pressure levels: low pressure, medium pressure, high pressure and ultra-high pressure. Pressure vessels are mainly used to complete the physical and chemical reactions of working media, which are called reaction vessels. Leakage and explosion may occur during use. The power generated by leakage and explosion is very strong and will cause serious consequences. Therefore, pressure vessels are specified as special equipment, and there are strict requirements for their production and use.

[0003] After searching, the publication number CN203519272U is a clamping and sealing tool for pressure vessel inspection, which includes a hollow screw, a fixed end head arranged at one end of the hollow screw, a middle hole communicating with the through hole of the hollow screw is opened in the middle of the fixed end head, and a gasket, a hand-held part and a screw fixing component are sleeved on the hollow screw in sequence from the fixed end head to the outside. The clamping and sealing tool for pressure vessel inspection of the utility model has a simple structure, is easy to use, and has stable and reliable performance.

[0004] In the above patent, the clamping tool is connected to the experimental container by rotating the fastening component to complete the connection between the sealing tool and the container. However, the experimental container needs to be punched during the connection, which damages the container body. In addition, during use, when the pressure in the pressure test is high, there is a risk that the sealing tool and the container may fall off, affecting the safety of the experiment. The existing detection also has a method of connecting to the pressure vessel connector for detection. However, when connecting in this way, it is necessary to replace the connecting components according to different types of pressure vessel connectors, which increases the complexity of the connection.

[0005] Therefore, it is necessary to invent a clamping and sealing tool for pressure vessel inspection to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a clamping and sealing tool for pressure vessel inspection, which pushes the rubber pad to fit the outer surface of the pressure vessel connector from different directions at the same time through multiple push plates, thereby ensuring the stability of the connection and the socket fit between the rubber bushing and the trapezoidal butt tube, ensuring the sealing of the connection and the effect of the applicable range, so as to solve the problems in the prior art that the high pressure during connection inspection will affect the stability of the connection and the automatic adaptation of the connection cannot be performed according to the inner diameter of the connector during connection.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a clamping and sealing tool for pressure vessel inspection, comprising: a docking sleeve, the inner wall of which is fixedly connected to a rubber bushing, a trapezoidal docking tube is arranged on the side of the docking sleeve away from the rubber bushing, a thread is provided on the trapezoidal docking tube, and the rubber bushing is used for sealing during inspection;

[0008] A clamping assembly is arranged in the docking sleeve and is used to connect and fix with the pressure vessel during inspection;

[0009] The sealing assembly is arranged on one side of the docking sleeve and is used for sealing and locking during detection.

[0010] Preferably, the clamping assembly comprises: a gear ring, the gear ring is limitedly sleeved on the docking sleeve, the surface of the docking sleeve is symmetrically annularly distributed with six groups of through holes, and the inner walls of the six groups of through holes are each provided with an annular groove.

[0011] Preferably, a positioning ring is slidably connected in the annular groove, a threaded barrel is sleeved and fixed in the positioning ring, a gear is fixedly connected above the threaded barrel, and the gear is meshed with the gear ring.

[0012] Preferably, a screw is threadedly connected inside the threaded barrel, a push plate is fixedly connected below the screw, the push plate is arranged in the docking barrel, and a rubber pad is fixedly connected inside the push plate.

[0013] Preferably, the outer side of the push plate is symmetrically connected with a guide rod, and the inner wall of the docking tube is provided with a guide hole, and the guide hole is connected with the corresponding guide rod through and through.

[0014] Preferably, the sealing assembly includes: an annular groove 2, an annular groove 2 is provided on the surface side of the docking tube away from the gear ring, a positioning ring 2 is slidably connected in the annular groove 2, a threaded tube 2 is sleeved on one side of the docking tube, the inner wall of the threaded tube 2 is fixedly connected to the positioning ring 2, and a nut is sleeved and fixed on the threaded tube 2.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] By sleeve-fitting the docking sleeve onto the connecting head of the pressure vessel, the rubber bushing will penetrate into the connecting head. At this time, the push plate will push the rubber pad to fit the outer surface of the connecting head by rotating the gear ring, thereby fixing the docking sleeve. Through the cooperation of the threaded tube 2 and the thread, the trapezoidal docking tube will pass through the docking sleeve and the threaded tube 2 and enter the rubber bushing. As the trapezoidal docking tube continues to enter, its volume is expanded and fits tightly with the inner wall of the connecting head. Due to the action of the push plate and the rubber pad, the device as a whole will not be at risk of detachment under high pressure. In addition, through the special shape of the trapezoidal docking tube, the inner diameter of the connecting head can be adaptively adjusted while ensuring sealing, thereby greatly improving the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the disassembled structure of the docking sleeve of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the docking tube of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure of the threaded barrel and the screw rod of the utility model;

[0022] Figure 5 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 6 For the utility model Figure 3 Enlarged structural diagram at B in the middle.

[0024] Description of reference numerals:

[0025] 001, docking tube; 101, rubber bushing; 102, trapezoidal docking tube; 103, thread; 002, clamping assembly; 201, gear ring; 202, gear; 203, threaded tube one; 204, through hole; 205, annular groove one; 206, screw; 207, push plate; 208, guide rod; 209, guide hole; 210, positioning ring one; 211, rubber pad; 003, sealing assembly; 301, annular groove two; 302, threaded tube two; 303, positioning ring two; 304, nut. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-6 A clamping and sealing tool for pressure vessel inspection is shown, characterized in that it comprises: a docking sleeve 001, a rubber bushing 101 is fixedly connected to the inner wall of the docking sleeve 001, a trapezoidal docking pipe 102 is arranged on the side of the docking sleeve 001 away from the rubber bushing 101, a thread 103 is provided on the trapezoidal docking pipe 102, and the rubber bushing 101 is used for sealing during inspection;

[0028] The clamping assembly 002 is disposed in the docking sleeve 001 and is used to connect and fix with the pressure vessel during testing;

[0029] The sealing component 003 is arranged on one side of the docking sleeve 001 and is used for sealing and locking during detection.

[0030] like Figure 1-6 As shown, the clamping assembly 002 includes: a gear ring 201, which is limitedly sleeved on the docking sleeve 001, and six groups of through holes 204 are symmetrically distributed in a ring shape on the surface of the docking sleeve 001. The inner walls of the six groups of through holes 204 are all provided with an annular groove 205. Through the limited sleeve of the gear ring 201, it can rotate along a fixed point on the docking sleeve 001.

[0031] like Figure 1-6 As shown, a positioning ring 210 is slidably connected in the annular groove 205, a threaded barrel 203 is sleeved and fixed in the positioning ring 210, a gear 202 is fixedly connected above the threaded barrel 203, the gear 202 is meshed with the gear ring 201, and the gear 202 is driven to rotate by the gear ring 201, thereby driving the threaded barrel 203 to rotate.

[0032] like Figure 1-6 As shown, a screw rod 206 is threadedly connected inside the threaded barrel 203, a push plate 207 is fixedly connected below the screw rod 206, the push plate 207 is arranged in the docking barrel 001, a rubber pad 211 is fixedly connected inside the push plate 207, and the screw rod 206 is pushed to move by the threaded barrel 203, thereby driving the push plate 207 to move.

[0033] like Figure 1-6 As shown, the outer side of the push plate 207 is symmetrically connected with a guide rod 208, and a guide hole 209 is opened on the inner wall of the docking tube 001. The guide hole 209 is connected with the corresponding guide rod 208. The movement of the push plate 207 is limited by the cooperation between the guide rod 208 and the guide hole 209.

[0034] like Figure 1 and Figure 2 The sealing component 003 includes: an annular groove 301, an annular groove 301 is provided on the surface side of the docking tube 001 away from the gear ring 201, a positioning ring 303 is slidably connected in the annular groove 301, a threaded tube 302 is sleeved on one side of the docking tube 001, the inner wall of the threaded tube 302 is fixedly connected to the positioning ring 303, a nut 304 is sleeved and fixed on the threaded tube 302, and the trapezoidal docking tube 102 can be sleeved on the docking tube 001 through the cooperation between the threaded tube 302 and the thread 103.

[0035] How this utility works:

[0036] Refer to the instruction manual Figure 1-6 , by sleeve-fitting the docking tube 001 onto the connector of the pressure detection container, the rubber bushing 101 is inserted into the connector of the pressure detection container and fits against its inner wall. At this time, the rotating gear ring 201 drives the gear 202 to rotate, so that the threaded tube 1 203 rotates and pushes the screw 206 to move, so that the push plate 207 pushes the rubber pad 211 to fit against the outer surface of the connector of the pressure detection container, so that the docking tube 001 is firmly fixed as a whole. At this time, the trapezoidal docking tube 102 is inserted into the threaded tube 2 302 and penetrates into the rubber bushing 101. At this time, the position of the threaded tube 2 302 is manually fixed and the trapezoidal docking tube 102 is rotated to cooperate with the thread 103, so that the trapezoidal The butt joint 102 moves into the rubber bushing 101, and due to the special shape of the trapezoidal butt joint 102, its surface can gradually expand the rubber bushing 101 and fit tightly against the inner wall of the connector of the pressure vessel, and the shape of the trapezoidal butt joint 102 can be automatically adapted according to the inner diameter of the connector. After tightening, the position of the trapezoidal butt joint 102 can be fixed, and the nut 304 can be rotated using a tool to rotate the threaded barrel 302, thereby further fixing the position of the trapezoidal butt joint 102. Finally, water or other media can be injected into the pressure vessel through the trapezoidal butt joint 102 for testing, thereby completing the clamping and sealing connection during pressure vessel testing.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A clamping and sealing tool for pressure vessel inspection, characterized in that: include: A docking sleeve (001), wherein a rubber bushing (101) is fixedly connected to the inner wall of the docking sleeve (001), a trapezoidal docking tube (102) is arranged on the side of the docking sleeve (001) away from the rubber bushing (101), a thread (103) is provided on the trapezoidal docking tube (102), and the rubber bushing (101) is used for sealing during detection; A clamping assembly (002) is arranged in the docking sleeve (001) and is used to connect and fix with the pressure vessel during testing; The sealing assembly (003) is arranged on one side of the docking sleeve (001) and is used for sealing and locking during detection.

2. A clamping and sealing tool for pressure vessel inspection according to claim 1, characterized in that: The clamping assembly (002) comprises: a gear ring (201), the gear ring (201) is limitedly sleeved on the docking sleeve (001), the surface of the docking sleeve (001) is symmetrically annularly distributed with six groups of through holes (204), and the inner walls of the six groups of through holes (204) are all provided with an annular groove (205).

3. A clamping and sealing tool for pressure vessel inspection according to claim 2, characterized in that: A positioning ring (210) is slidably connected in the annular groove (205), a threaded barrel (203) is sleeved and fixed in the positioning ring (210), a gear (202) is fixedly connected above the threaded barrel (203), and the gear (202) is meshed with the gear ring (201).

4. A clamping and sealing tool for pressure vessel inspection according to claim 3, characterized in that: A screw rod (206) is threadedly connected inside the threaded barrel (203), a push plate (207) is fixedly connected below the screw rod (206), the push plate (207) is arranged inside the docking barrel (001), and a rubber pad (211) is fixedly connected inside the push plate (207).

5. A clamping and sealing tool for pressure vessel inspection according to claim 4, characterized in that: The outer side of the push plate (207) is symmetrically connected to a guide rod (208), and the inner wall of the docking tube (001) is provided with a guide hole (209), and the guide hole (209) is connected to the corresponding guide rod (208) through and through.

6. The clamping and sealing tool for pressure vessel inspection according to claim 1, characterized in that: The sealing assembly (003) comprises: an annular groove (301) 2, an annular groove (301) is provided on the surface side of the docking tube (001) away from the gear ring (201), a positioning ring (303) is slidably connected in the annular groove (301), a threaded tube (302) is sleeved on one side of the docking tube (001), the inner wall of the threaded tube (302) is fixedly connected to the positioning ring (303), and a nut (304) is sleeved and fixed on the threaded tube (302).

Images