Nuclear power instrument calibration device comprising joint assembly

Abstract

The utility model belongs to the technical field of nuclear power instrument calibration, and particularly relates to a nuclear power instrument calibration device comprising a joint assembly, the device comprises an end head assembly, a protective sleeve, a connecting chain and a fixing seat, one end of the end head assembly is connected with the protective sleeve, the same side of the protective sleeve and the end head assembly is connected with the connecting chain, and the other end of the end head assembly is provided with the fixing seat. According to the device, the protective sleeve is arranged at one end of the end head assembly, and structures between the protective sleeve and the end head assembly are mutually nested, so that structure protection can be provided for the innermost joint pin to the greatest extent, and the phenomenon that the joint pin is damaged due to external acting force when the joint pin is not subjected to structure insertion connection is avoided; and meanwhile, by using the damping insertion block, collision after the protective sleeve and the end head assembly are connected can be relieved as much as possible, vibration is absorbed, and damage is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of nuclear power instrument calibration technology, specifically relating to a nuclear power instrument calibration device including a connector assembly. Background Technology

[0002] Nuclear power plants utilize a large number of transmitter instruments to measure process quantities such as liquid level, flow rate, and pressure. According to relevant industry regulations and maintenance strategies, nuclear power instruments require periodic calibration using calibration devices. During calibration, the calibration device plays a crucial role in ensuring the accuracy and precision of the measurement and testing data from the nuclear power instruments. The calibration device and the nuclear power instruments are typically connected via connectors and cables to achieve testing and calibration.

[0003] In the existing technology, conventional nuclear power instrument calibration devices are not specifically designed for the cable connections of nuclear power instruments. When connecting the calibration device, external forces can easily cause structural damage or allow foreign objects to enter the nuclear power instruments, resulting in inconvenience in the maintenance of nuclear power instruments and affecting their normal use. Utility Model Content

[0004] This invention proposes a nuclear power instrument calibration device including a connector assembly, which solves the problem in the prior art where the lack of a protective device in the nuclear power instrument calibration device leads to damage or the introduction of foreign objects into the nuclear power instrument.

[0005] The technical solution of this utility model:

[0006] This utility model proposes a nuclear power instrument calibration device including a connector assembly. The device includes a terminal assembly, a protective sleeve, a connecting chain, and a fixing seat. One end of the terminal assembly is connected to the protective sleeve, and the protective sleeve is nested outside the terminal assembly. The two ends of the connecting chain are respectively connected to the protective sleeve and the terminal assembly on the same side. The fixing seat is installed at the other end of the terminal assembly.

[0007] In some embodiments, the end assembly includes an end seat, a connecting sleeve, a connector pin, and a reinforcing tube. The end seat is mounted on a fixing base, and the connecting sleeve is installed at the end of the end seat away from the fixing base. The reinforcing tube is installed inside the connecting sleeve, and the connector pin is installed in the center of the inside of the reinforcing tube.

[0008] In some embodiments, the end assembly further includes a limiting block disposed on the inner wall of the reinforcing tube.

[0009] In some embodiments, the protective sleeve includes a protective tube, a buffer block, a shock-absorbing insert, a limiting groove, and a fixing sleeve. The protective tube is sleeved on the outside of the end assembly, and the outer side of the protective tube is movably connected to the fixing sleeve. The end of the protective tube away from the end assembly is connected to the buffer block. A shock-absorbing insert is provided in the center of the inside of the protective tube. A limiting groove is horizontally formed on the surface of the shock-absorbing insert, and the limiting groove matches the limiting block.

[0010] In some embodiments, the shock-absorbing plug has a socket structure in the middle, which matches the connector pin structure; the protective tube matches the gap structure between the connecting sleeve and the reinforcing tube; and the gap structure between the protective tube and the shock-absorbing plug matches the reinforcing tube.

[0011] In some embodiments, the fixed sleeve and the protective tube are movably connected. The inner side of the fixed sleeve has a threaded structure, and the outer side of the connecting sleeve has a threaded structure. The fixed sleeve and the connecting sleeve can be connected by threads.

[0012] In some embodiments, the mounting base includes a base, mounting bolts, and a sealing ring. An end assembly is mounted on the top of the base, and mounting bolts are threaded around the base, with the mounting bolts penetrating the base. A sealing ring is mounted on the surface of the base away from the end assembly.

[0013] In some embodiments, the two ends of the connecting chain are respectively connected to the end assembly and the protective sleeve by threads.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model proposes a nuclear power instrument calibration device including a connector assembly. The device provides maximum structural protection for the innermost connector pin by setting a protective sleeve at one end of the connector assembly, and the various structures between the protective sleeve and the connector assembly are nested together. This prevents the connector pin from being damaged by external forces when it is not structurally connected. At the same time, the use of shock-absorbing blocks can mitigate the impact after the protective sleeve is connected to the connector assembly, thereby absorbing vibration and reducing damage.

[0016] 2. This utility model proposes a nuclear power instrument calibration device including a connector assembly. The device is equipped with a limiting block and a limiting groove. The limiting block and the limiting groove can prevent relative axial rotation when the protective sleeve is connected to the end assembly structure, thereby reducing structural damage. On the other hand, it can also ensure that the connector pin is inserted into the shock-absorbing block without structural misalignment and damage to the connector pin.

[0017] 3. This utility model proposes a nuclear power instrument calibration device including a connector assembly. The device has a connecting chain on the same side surface of the end assembly and the protective sleeve, so that the protective sleeve can be removed from the surface of the end assembly and is not lost. Attached Figure Description

[0018] Figure 1 A side view of a nuclear power instrument calibration device including a connector assembly designed for this utility model;

[0019] Figure 2A schematic diagram of the internal structure of a protective sleeve for a nuclear power instrument calibration device including a connector assembly, designed for this utility model;

[0020] Figure 3 A three-dimensional structural diagram of the end assembly of a nuclear power instrument calibration device including a connector assembly, designed for this utility model;

[0021] Figure 4 A three-dimensional structural diagram of a mounting base for a nuclear power instrument calibration device including a connector assembly, designed for this utility model;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. End assembly; 101. End seat; 102. Connecting sleeve; 103. Reinforcing tube; 104. Limiting block; 105. Connector pin; 2. Protective sleeve; 201. Protective tube; 202. Buffer block; 203. Shock-absorbing insert; 204. Limiting groove; 205. Fixing sleeve; 3. Connecting chain; 4. Fixing seat; 401. Base; 402. Mounting bolt; 403. Sealing ring. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 4 As shown, this utility model proposes a nuclear power instrument calibration device including a connector assembly. The device includes an end assembly 1, a protective sleeve 2, a connecting chain 3, and a fixing seat 4. One end of the end assembly 1 is connected to the protective sleeve 2, and the protective sleeve 2 is fitted over the end assembly 1. The protective sleeve 2 and the end assembly 1 are respectively connected to the two ends of the connecting chain 3 on the same side. The fixing seat 4 is installed at the other end of the end assembly 1.

[0026] The end assembly 1 includes an end seat 101, a connecting sleeve 102, a limiting block 104, a connector pin 105, and a reinforcing tube 103. The end seat 101 is mounted on the fixing seat 4. The connecting sleeve 102 is installed at the end of the end seat 101 away from the fixing seat 4, and the reinforcing tube 103 is installed inside the connecting sleeve 102. The limiting block 104 is connected to the upper end of the inner wall of the reinforcing tube 103, and the connector pin 105 is installed in the center of the inside of the reinforcing tube 103. The end seat 101 and the connecting sleeve 102 are fixedly connected to each other, and the limiting block 104 and the reinforcing tube 103 are integrally formed.

[0027] The protective sleeve 2 includes a protective tube 201, a buffer block 202, a shock-absorbing insert 203, a limiting groove 204, and a fixing sleeve 205. The protective tube 201 is located outside the end assembly 1. The end of the protective tube 201 away from the end assembly 1 is connected to the buffer block 202. The shock-absorbing insert 203 is located in the center of the interior of the protective tube 201. The shock-absorbing insert 203 has a socket structure in the middle that matches the structure of the connector pin 105. The upper surface of the shock-absorbing insert 203 has a horizontally formed limiting groove 204, and the surface structure of the limiting groove 204 matches the surface structure of the limiting block 104. At the same time, the surface structure of the protective tube 201 matches the gap structure between the connecting sleeve 102 and the reinforcing tube 103, and the gap structure between the protective tube 201 and the shock-absorbing insert 203 matches the reinforcing tube 103. The connector pin 105 is horizontally inserted into the inside of the shock-absorbing block 203. At this time, the protective tube 201 is horizontally inserted between the connecting sleeve 102 and the reinforcing tube 103, and the reinforcing tube 103 is horizontally inserted between the protective tube 201 and the shock-absorbing block 203, so that the various structures between the protective sleeve 2 and the end assembly 1 are nested together. A fixing sleeve 205 is sleeved on the outside of the protective tube 201. The fixing sleeve 205 is movably connected to the protective tube 201. The inner side of the fixing sleeve 205 has a threaded structure, and the outer side of the connecting sleeve 102 has a threaded structure. The fixing sleeve 205 and the connecting sleeve 102 can be connected by threads.

[0028] The two ends of the connecting chain 3 are threadedly connected to the end assembly 1 and the protective sleeve 2, respectively.

[0029] The mounting base 4 includes a base 401, mounting bolts 402 and a sealing ring 403. The end assembly 1 is mounted on the top of the base 401. The mounting bolts 402 are threaded horizontally around the base 401, and the sealing ring 403 is mounted on the side of the base 401 away from the end assembly 1.

[0030] By inserting the limiting block 104 on the inner wall surface of the reinforcing tube 103 into the limiting groove 204 opened on the surface of the shock-absorbing block 203 in the horizontal direction, the protective sleeve 2 will not rotate axially relative to the end assembly 1 when the structure is connected, thus reducing structural damage. Furthermore, by connecting the end assembly 1 and the protective sleeve 2 with the connecting chain 3 on the same side surface, the protective sleeve 2 can be removed from the surface of the end assembly 1 without being lost.

[0031] The device is equipped with a connector assembly. By attaching a protective sleeve 2 to one end surface of the end assembly 1, it can effectively provide sufficient structural connection strength for the end assembly 1 when it is not in use, while also providing structural protection, thereby preventing the internal connector pins 105 from being damaged by external forces. At the same time, by connecting the protective sleeve 2 and one side surface of the end assembly 1 with a connecting chain 3, it can prevent unnecessary structural loss after the protective sleeve 2 and the end assembly 1 are disassembled.

[0032] like Figures 1 to 4 As shown, this utility model proposes a nuclear power instrument calibration device including a connector assembly. When using the device, firstly, when it is necessary to connect and fix the entire device to the equipment structure surface using the mounting bolts 402 around the base 401, the sealing ring 403 can provide good structural sealing at the connection between the base 401 and the equipment structure surface. When the end assembly 1 is needed, simply loosen the screw of the fixing sleeve 205 threaded to the surface of the connecting sleeve 102, so that the two structures are separated. During this process, the internal protective tube 201 will be pulled out horizontally from between the connecting sleeve 102 and the reinforcing tube 103, and the connector pin 105 will be pulled out from the inside of the shock-absorbing plug 203. At this time, the reinforcing tube 103 and the limiting block 104 will be pulled out horizontally along the space between the protective tube 201 and the shock-absorbing plug 203, and inside the limiting groove 204. Then, using the connection of the connecting chain 3, the protective sleeve 2 can be suspended below the end assembly 1 to prevent the structure from being lost.

[0033] The embodiments of this utility model have been described in detail above. This utility model is not limited to the above examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.

Claims

1. A nuclear power instrument calibration device including a connector assembly, characterized in that, The device includes an end assembly (1), a protective sleeve (2), a connecting chain (3), and a fixing seat (4). The protective sleeve (2) is installed at one end of the end assembly (1), and the protective sleeve (2) is fitted over the end assembly (1). The protective sleeve (2) and the end assembly (1) are respectively connected to the two ends of the connecting chain (3) on the same side. The fixing seat (4) is installed at the other end of the end assembly (1).

2. The nuclear power instrument calibration device including a connector assembly according to claim 1, characterized in that, The end assembly (1) includes an end seat (101), a connecting sleeve (102), a connector pin (105), and a reinforcing tube (103). The end seat (101) is mounted on the fixing seat (4). The connecting sleeve (102) is installed at the end of the end seat (101) away from the fixing seat (4). The reinforcing tube (103) is installed inside the connecting sleeve (102). The connector pin (105) is installed in the center of the inside of the reinforcing tube (103).

3. A nuclear power instrument calibration device including a connector assembly according to claim 2, characterized in that, The end assembly (1) further includes a limiting block (104), which is disposed on the inner wall of the reinforcing tube (103).

4. A nuclear power instrument calibration device including a connector assembly according to claim 3, characterized in that, The protective sleeve (2) includes a protective tube (201), a buffer block (202), a shock-absorbing insert (203), a limiting groove (204), and a fixing sleeve (205). The protective tube (201) is outside the end assembly (1), and the fixed sleeve (205) is movably sleeved on the outside of the protective tube (201). The end of the protective tube (201) away from the end assembly (1) is connected to the buffer block (202). The shock-absorbing insert (203) is provided in the center of the inside of the protective tube (201). The limiting groove (204) is horizontally opened on the surface of the shock-absorbing insert (203), and the limiting groove (204) matches the limiting block (104).

5. A nuclear power instrument calibration device including a connector assembly according to claim 4, characterized in that, The shock-absorbing plug (203) has a socket structure in the middle, which matches the structure of the connector pin (105); the protective tube (201) matches the gap structure between the connecting sleeve (102) and the reinforcing tube (103); the gap structure between the protective tube (201) and the shock-absorbing plug (203) matches the reinforcing tube (103).

6. A nuclear power instrument calibration device including a connector assembly according to claim 5, characterized in that, The fixed sleeve (205) is movably connected to the protective tube (201). The inner side of the fixed sleeve (205) has a threaded structure, and the outer side of the connecting sleeve (102) has a threaded structure. The fixed sleeve (205) and the connecting sleeve (102) can be connected by threads.

7. A nuclear power instrument calibration device including a connector assembly according to claim 6, characterized in that, The fixing base (4) includes a base (401), mounting bolts (402) and a sealing ring (403). The end assembly (1) is mounted on the top of the base (401). The mounting bolts (402) are threaded around the base (401). The mounting bolts (402) penetrate the base (401). The sealing ring (403) is mounted on the side of the base (401) away from the end assembly (1).

8. A nuclear power instrument calibration device including a connector assembly according to claim 1, characterized in that, The two ends of the connecting chain (3) are connected to the end assembly (1) and the protective sleeve (2) respectively by threads.

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