Universal threaded connector pressure calibrating device

Abstract

The utility model discloses a universal threaded interface pressure calibrating device, which comprises a conversion seat, an assembling mounting sheet and a mounting cap, the conversion seat comprises a base and an upper cylinder which are integrally formed, through holes are formed in the center of the base and the center of the upper cylinder, a flange is arranged on the top surface of an inner cavity of the mounting cap, and the flange is provided with a through hole. A flange is arranged on the base, a first spring is arranged between the flange and the base, a mounting ring is arranged on the outer side wall of the upper cylinder, a mounting groove is formed in the inner side wall of the assembling mounting piece and matched with the mounting ring, an opening is formed in the mounting cap, and the assembling mounting piece is arranged in the opening. And by arranging the leather sheath in a sleeving manner, the unfolding size of the assembling mounting pieces which are arranged in the circumferential direction can be finely adjusted. By arranging a matching structure among the conversion seat, the assemblable mounting piece and the mounting cap, an operator only needs to press the mounting cap downwards to expose the assemblable mounting piece, and mounting of different screwed joints is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of conversion joints, in particular to a conversion device capable of threading or plugging multiple types of threads. Background Art

[0002] In the past, pressure testing equipment could usually only be used for threaded interfaces of one type. In this way, when faced with multiple types of pressure equipment, it is necessary to design multiple types of connection structures to complete the assembly between the two.

[0003] If you want to install threaded joints for multiple pressure equipment, you need to design a single thread into a universal thread so that the same threaded interface can connect multiple threads. For example, NPT1 / 2, ZG1 / 2, G1 / 2 and M20×1.5 threaded joints can be connected using the same threaded interface. Utility Model Content

[0004] The utility model aims to provide a universal threaded interface pressure testing device to solve the pressure testing problem of equipment with various types of threads.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal threaded interface pressure calibration device, comprising a conversion seat, an assemblable mounting plate and a mounting cap, the conversion seat comprising an integrally formed base and an upper cylinder, through holes are provided at the centers of the base and the upper cylinder, a flange is provided on the top surface of the inner cavity of the mounting cap, and a first spring is provided between the flange and the base, a mounting ring is provided on the outer wall of the upper cylinder, a mounting groove is provided on the inner wall of the assemblable mounting plate, and the mounting groove cooperates with the mounting ring, an opening is provided on the mounting cap, and the assemblable mounting plate is placed in the opening.

[0006] Preferably, the assemblable mounting plate is composed of six single pieces, and the inner side of each single piece is provided with an internal thread, the outer side wall of the single piece is provided with a leather case groove, and the leather case groove is provided with a leather case.

[0007] Preferably, a bottom side wall of the base is provided with a mounting cap limiting flange.

[0008] Preferably, a groove is formed on the bottom surface of the base, a stud is installed in the groove, and a through hole passes through the stud.

[0009] Preferably, a piston groove is provided on the top surface of the upper cylinder, and a piston rod is provided in the piston groove.

[0010] Preferably, a second spring is provided between the piston groove and the piston rod.

[0011] Preferably, the top side wall of the piston groove is provided with an annular groove, the top side wall of the piston rod is provided with an annular protrusion, and the annular groove cooperates with the annular protrusion.

[0012] Preferably, a gasket groove is provided on the top surface of the piston rod, and a gasket is provided in the gasket groove.

[0013] Preferably, a sealing sleeve groove is provided on the side wall of the piston rod, and a sealing rubber ring is provided in the sealing sleeve groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By modifying the parameters of the thread angle and pitch of the single piece, the function of universal clamping can be realized at the same station. And by setting a leather sleeve, the circumferentially arranged assemblable installation piece can be fine-tuned to expand, so that the installation of the thread structure will be easier. And the matching structure with the conversion seat is set, so that all single pieces can be installed more stably.

[0016] By setting up the matching structure between the conversion seat, the assembleable mounting piece and the mounting cap, the operator only needs to press down the mounting cap to expose the assembleable mounting piece and complete the installation of different threaded joints. And by setting up a piston rod with a spring, in conjunction with the chamber inside the device, when pressure comes, it can form a sealing effect for the part to be inspected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the assembly installation plate of the utility model when it is disassembled.

[0018] Figure 2 It is a schematic diagram of the assemblable mounting plate of the utility model when it is installed on the conversion seat.

[0019] Figure 3 It is a top view of the assembleable mounting plate of the utility model.

[0020] Figure 4 It is a schematic diagram of the inner side of a single piece of the utility model.

[0021] Figure 5 It is a schematic diagram of the outer side of a single piece of the utility model.

[0022] 1. Conversion seat; 101. Base; 102. Upper cylinder; 103. Through hole; 104. Mounting ring; 105. Mounting cap limiting flange; 106. Groove body; 107. Stud; 108. Piston groove; 109. Annular groove; 2. Assembled mounting plate; 21. Single piece; 22. Leather sleeve groove; 23. Internal thread; 24. Mounting groove; 3. Mounting cap; 31. Opening; 4. Piston rod; 41. Annular protrusion; 42. Gasket groove; 43. Sealing sleeve groove; 5. Second spring; 6. Leather sleeve; 7. First spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: a universal threaded interface pressure test device, comprising a conversion seat 1, an assembleable mounting plate 2 and a mounting cap 3, wherein the conversion seat 1 comprises an integrally formed base 101 and an upper cylinder 102, a mounting cap limiting flange 105 is provided on the bottom side wall of the base 101, the mounting cap 3 is sleeved on the base 101, and the mounting cap limiting flange 105 limits the maximum downward movement distance of the mounting cap 3. A flange is provided on the top surface of the inner cavity of the mounting cap 3, and a first spring 7 is provided between the flange and the base 101, so that the mounting cap 3 can be reset normally.

[0025] A through hole 103 is provided at the center of the base 101 and the upper cylinder 102, and the through hole 103 is a passage for pressure. A mounting ring 104 is provided on the outer wall of the upper cylinder 102, and a mounting groove 24 is provided on the inner wall of the assemblable mounting plate 2, and the mounting groove 24 cooperates with the mounting ring 104. A groove body 106 is provided on the bottom surface of the base 101, and a stud 107 is installed in the groove body 106, and the through hole 103 passes through the stud 107. By installing the stud 107 on the pressure source, pressure can be injected into the pressure testing device installed in the assemblable mounting plate 2 through the through hole 103.

[0026] The mounting cap 3 is provided with an opening 31, and the assembly mounting piece 2 in the initial state is placed in the opening 31, and the top surface of the assembly mounting piece 2 is flush with the mounting cap 3. By pressing the mounting cap 3 downward, the assembly mounting piece 2 can be protruded out of the opening 31, thereby facilitating the connection between the assembly mounting piece 2 and the device to be inspected. After releasing the hand, the mounting cap 3 can be reset by the elasticity of the first spring 7.

[0027] Preferably, the assemblable mounting plate 2 is composed of six single pieces 21, and the inner side of each single piece 21 is provided with an internal thread 23, and after all the single pieces 21 are assembled, all the internal threads 23 will form a complete screw hole, which can be screwed or plugged with threaded joints of various types of the same size. By modifying the parameters of the tooth angle and pitch of different threads, the function of universal clamping at the same work station is realized. The outer wall of the single piece 21 is provided with a leather sleeve groove 22, and the leather sleeve groove 22 is covered with a leather sleeve 6. The leather sleeve 6 has a certain elasticity, which makes it easier to install the threaded structure of the pressure equipment, so that the assemblable mounting plate 2 can connect various types of threaded joints. For example, four threaded joints of the same size such as NPT1 / 2, ZG1 / 2, G1 / 2 and M20×1.5 can be installed through the assemblable mounting plate 2.

[0028] In order to enhance the sealing effect, a piston structure is added to support the inner cavity of the threaded interface of the pressure testing equipment. A piston groove 108 is provided on the top surface of the upper cylinder 102, and a piston rod 4 is provided in the piston groove 108. A second spring 5 is provided between the piston groove 108 and the piston rod 4, so that the piston rod 4 can move freely and reset. An annular groove 109 is provided on the top side wall of the piston groove 108, and an annular protrusion 41 is provided on the top side wall of the piston rod 4, and the annular groove 109 cooperates with the annular protrusion 41. A gasket groove 42 is provided on the top surface of the piston rod 4, and a gasket is provided in the gasket groove 42. In order to further enhance the airtightness, a sealing sleeve groove 43 is provided on the side wall of the piston rod 4, and a sealing rubber ring is provided in the sealing sleeve groove 43, and the sealing rubber ring cooperates with the piston groove 108 to increase the sealing performance.

[0029] Working principle: Before installing the device with the pressure gauge to be tested, push the mounting cap 3 downward so that the assembly mounting plate 2 can protrude out of the opening 31. Threaded interfaces of different types of pressure gauges are screwed or plugged into the internal threads 23 of the assembly mounting plate 2. Since the assembly mounting plate 2 is assembled from a single piece 21, and a leather cover 6 is placed over the single piece 21, it is easier to install the threaded connector. For example, threaded connectors of NPT1 / 2, ZG1 / 2, G1 / 2 and M20×1.5 can be stably screwed or plugged into the assembly mounting plate 2.

[0030] In order to further improve the sealing performance, the piston rod 4 is arranged so that it can bear against the inner cavity of the interface, and when pressure is applied, a sealing effect can be formed for the part to be inspected.

[0031] Connect an external pressure source through the stud 107 to apply pressure to the device and the pressure gauge and other equipment connected to the device. After the test is completed, the pressure gauge can be disassembled.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal threaded interface pressure test device, characterized in that: The invention comprises a conversion seat (1), an assemblable mounting plate (2) and a mounting cap (3); the conversion seat (1) comprises an integrally formed base (101) and an upper cylinder (102); a through hole (103) is provided at the center of the base (101) and the upper cylinder (102); a flange is provided on the top surface of the inner cavity of the mounting cap (3); a first spring (7) is provided between the flange and the base (101); a mounting ring (104) is provided on the outer wall of the upper cylinder (102); a mounting groove (24) is provided on the inner wall of the assemblable mounting plate (2); the mounting groove (24) cooperates with the mounting ring (104); an opening (31) is provided on the mounting cap (3), and the assemblable mounting plate (2) is placed in the opening (31).

2. The universal threaded interface pressure testing device according to claim 1, characterized in that: The assembleable mounting plate (2) is composed of six single pieces (21), and the inner side of each single piece (21) is provided with an internal thread (23), the outer side wall of the single piece (21) is provided with a leather sleeve groove (22), and the outer surface of the leather sleeve groove (22) is provided with a leather sleeve (6).

3. The universal threaded interface pressure testing device according to claim 1, characterized in that: The bottom side wall of the base (101) is provided with a mounting cap limiting flange (105).

4. The universal threaded interface pressure testing device according to claim 1, characterized in that: The bottom surface of the base (101) is provided with a groove (106), a stud (107) is installed in the groove (106), and the through hole (103) passes through the stud (107).

5. The universal threaded interface pressure testing device according to claim 1, characterized in that: A piston groove (108) is provided on the top surface of the upper cylinder (102), and a piston rod (4) is provided in the piston groove (108).

6. The universal threaded interface pressure testing device according to claim 5, characterized in that: A second spring (5) is provided between the piston groove (108) and the piston rod (4).

7. The universal threaded interface pressure testing device according to claim 5, characterized in that: The top side wall of the piston groove (108) is provided with an annular groove (109), the top side wall of the piston rod (4) is provided with an annular protrusion (41), and the annular groove (109) cooperates with the annular protrusion (41).

8. The universal threaded interface pressure testing device according to claim 5, characterized in that: The top surface of the piston rod (4) is provided with a gasket groove (42), and a gasket is provided in the gasket groove (42).

9. The universal threaded interface pressure testing device according to claim 5, characterized in that: A sealing sleeve groove (43) is provided on the side wall of the piston rod (4), and a sealing rubber ring is provided in the sealing sleeve groove (43).

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