Connector plug fastening structure for nuclear power

Abstract

The utility model discloses a connector plug fastening structure for nuclear power, and particularly relates to the technical field of connectors, which comprises a pin assembly with one end detachably connected with a socket and the other end connected with a cable, and further comprises a sleeve sleeved on the outer side of the pin assembly and a cable pressing assembly used for pressing the cable, the wire pressing assembly is connected with the end part of the sleeve, and comprises an adapter ring of which one end is connected with the sleeve, a wire clamp sleeve connected with the other end of the adapter ring, and a pressing unit detachably connected with the wire clamp sleeve. According to the technical scheme provided by the utility model, the cable is clamped through the arc-shaped pressing block I and the arc-shaped pressing block II between the connecting plates, and the cable is clamped at multiple points through the plurality of convex blocks on the inner sides of the arc-shaped pressing block I and the arc-shaped pressing block II, so that on one hand, the cable is clamped more firmly and reliably; on the other hand, the situation that the cable is excessively pressed by the protruding block due to the fact that the bolt is excessively screwed manually is avoided, and the cable is more safely pressed by the pressing unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially relates to a nuclear power connector plug fastening structure. BACKGROUND

[0002] The connector generally refers to the electric connector, can be applied to the signal and power connection between various equipment, wherein the circular electric connector includes the plug and the socket of separable connection, the nuclear power connector is the important transmission passage of power, control and instrument circuit in the nuclear power station, mainly concentrates in the safety shell inside of nuclear power station, because of the particularity of nuclear power station working environment, the customization of connector needs to satisfy a series of special requirements, its performance is crucial to the normal operation of the key function in the reactor, needs the connector to have higher sealing performance, radiation resistance and pressure capacity etc.

[0003] The existing nuclear power connector plug is connected with the cable, if the plug is too loose to the cable clamping, it is easy to cause the cable clamping not firm, if the clamping is too tight, it is easy to cause the damage of the protective layer of the cable, the connection of the plug and the cable is unreliable, and the technical problem is solved. UTILITY MODEL CONTENTS

[0004] The application aims at providing a nuclear power connector plug fastening structure, and aims at solving the technical problem of unreliable connection of the nuclear power connector plug and the cable.

[0005] In order to achieve the above-mentioned purpose, the application provides a nuclear power connector plug fastening structure, which comprises a plug pin assembly connected with a socket at one end, the other end of the plug pin assembly is connected with a cable, further comprising a sleeve sleeved on the outer side of the plug pin assembly, a wire pressing assembly for pressing the cable, the wire pressing assembly is connected with the end of the sleeve, the wire pressing assembly comprises an adapter ring connected with the sleeve at one end, a wire clamp sleeve connected with the other end of the adapter ring, and a pressing unit connected with the wire clamp sleeve, two accommodating grooves are arranged in the side of the wire clamp sleeve, the pressing unit comprises arc-shaped pressing block one and arc-shaped pressing block two arranged in the accommodating grooves respectively and pressed on the outer side of the cable.

[0006] The inner side of the arc-shaped pressing block one and the arc-shaped pressing block two is provided with a plurality of convex blocks for pressing the cable, the both ends of the arc-shaped pressing block one are provided with through holes, the both ends of the arc-shaped pressing block two are provided with threaded holes, and the arc-shaped pressing block one and the arc-shaped pressing block two are fastened and connected through bolts.

[0007] The side of the wire clamp sleeve is provided with a connecting plate between the two accommodating grooves, the connecting plate is used for fixing the compression unit, the arc-shaped pressing block one and the arc-shaped pressing block two are arranged on the two sides of the connecting plate respectively, and through holes allowing the bolts to pass through are arranged on the connecting plate.

[0008] The outer sides of the arc-shaped pressing block one and the arc-shaped pressing block two are provided with avoiding grooves for accommodating the end portions of the bolts.

[0009] The end portion of the sleeve is provided with external threads, the inner side of one end of the adapter ring is provided with internal threads, and the adapter ring is threadedly connected with the sleeve.

[0010] The outer side of the wire clamp sleeve is provided with an annular groove one, a clamping spring is sleeved in the annular groove one, the inner side of the other end of the adapter ring is provided with an annular groove two for fastening the clamping spring, and the adapter ring is rotationally connected with the wire clamp sleeve through the clamping spring.

[0011] The outer side of the wire clamp sleeve is provided with a limiting block, the external threaded portion of the sleeve is provided with a limiting groove allowing the limiting block to pass through, and the wire clamp sleeve is detachably sleeved in the sleeve.

[0012] The outer side of the wire clamp sleeve is provided with an annular stop table, and the end portion of the sleeve is detachably abutted against the annular stop table.

[0013] The protruding block array is uniformly arranged on the inner sides of the arc-shaped pressing block one and the arc-shaped pressing block two.

[0014] The protruding block is a quadrangular frustum.

[0015] The one or more technical solutions provided in the application have at least the following technical effects:

[0016] (1) The cable is clamped by the arc-shaped pressing block one and the arc-shaped pressing block two between the connecting plates, and the cable is clamped by the plurality of protruding blocks on the inner sides of the arc-shaped pressing block one and the arc-shaped pressing block two, on the one hand, the friction between the cable protective layer and the arc-shaped pressing block one and the arc-shaped pressing block two is increased, the clamping of the cable is more firm and reliable, and on the other hand, the spacing between the arc-shaped pressing block one and the arc-shaped pressing block two is limited by the connecting plate, the excessive compression of the protruding block on the cable caused by excessive manual screwing of the bolt is avoided, the damage of the connector to the cable protective layer is avoided, and the compression and fixation of the cable by the compression unit are more secure.

[0017] (2) through the sleeve on the limiting slot of the wire clamp sleeve limiting block is limited, avoid the connector in the process of using cable activity drive wire clamp sleeve along the sleeve rotation, cable connection is more firm and reliable, at the same time, due to the adapter ring and wire clamp sleeve rotation connection, avoid the wire clamp sleeve cable activity drive adapter ring rotation, further improve the reliability of the connector and cable connection. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.

[0019] Fig. 1 is the overall internal structure schematic diagram of the present application;

[0020] Fig. 2 is the local sectional structure schematic diagram of the present application;

[0021] Fig. 3 is the overall external structure schematic diagram of the present application.

[0022] Explanation of reference numerals: 1, pin assembly; 2, cable; 3, sleeve; 31, external thread; 311, limiting groove; 4, wire pressing assembly; 41, adapter ring; 411, internal thread; 412, annular groove two; 42, wire clamp sleeve; 421, accommodating groove; 422, connecting plate; 4221, through hole; 423, annular groove one; 424, limiting block; 425, annular stop table; 43, compression unit; 431, arc-shaped block one; 432, arc-shaped block two; 44, protruding block; 45, through hole; 46, threaded hole; 47, bolt; 48, avoiding groove; 49, clamping spring.

[0023] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0025] It should be noted that if the embodiments of the utility model have the direction indication (such as up, down, left, right, front, back), the direction indication is only used to explain the relative position relationship, movement condition and the like between components in a certain posture, if the certain posture changes, then the direction indication also changes accordingly.

[0026] In addition, if the embodiments of the utility model have the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, "and / or" or "and / or" appearing in the whole text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0027] Embodiment one

[0028] Referring to Figs. 1-3 A connector plug fastening structure for nuclear power, comprising a plug pin assembly 1 connected with the socket at one end, the other end of the plug pin assembly 1 is connected with a cable 2, further comprising a sleeve 3 sleeved on the outer side of the plug pin assembly 1, a wire pressing assembly 4 for pressing the cable 2, the wire pressing assembly 4 is connected with the end of the sleeve 3, the wire pressing assembly 4 comprises an adapter ring 41 connected with the sleeve 3 at one end, a wire clamp sleeve 42 connected with the other end of the adapter ring 41, a pressing unit 43 connected with the wire clamp sleeve 42, two accommodating grooves 421 are provided on the side of the wire clamp sleeve 42, the pressing unit 43 comprises arc-shaped pressing block one 431 and arc-shaped pressing block two 432 respectively arranged in the accommodating grooves 421 and pressed on the outer side of the cable 2.

[0029] Specifically, the inner side of the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 is provided with a plurality of protrusions 44 for pressing the cable 2, the protective layer on the outer side of the cable is pressed by the plurality of protrusions 44, the two ends of the arc-shaped pressing block one 431 are provided with through holes 45, the two ends of the arc-shaped pressing block two 432 are provided with threaded holes 46, the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 are fastened and connected by bolts 47.

[0030] Further, the side of the wire clamp sleeve 42 is provided with a connecting plate 422 between two accommodating grooves 421, the connecting plate 422 is used for fixing the pressing unit 43, the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 are arranged on the two sides of the connecting plate 422 respectively, and the through hole 4221 for allowing the bolt 47 to pass through is arranged on the connecting plate 422.

[0031] It can be understood that the outer side of the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 is provided with the avoiding groove 48 for accommodating the end of the bolt 47, through the arrangement of the avoiding groove 48, the leakage of the bolt 47 is avoided, so that the connector is more compact and reliable, and meanwhile the bolt 47 is prevented from loosening due to external force.

[0032] The outer side of the wire clamp sleeve 42 is provided with the annular stop 425, the end of the sleeve 3 is detachably abutted with the annular stop 425, through the abutment of the sleeve 3 with the annular stop 425 and the limiting of the adapter ring 41 to the wire clamp sleeve 42, the wire clamp sleeve 42 is firmly fixed at the end of the sleeve 3.

[0033] The convex blocks 44 are arranged on the inner side of the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432, and the protective layer of the cable is pressed by the plurality of convex blocks 44.

[0034] The convex block 44 is a quadrangular frustum, the sharp top end of the convex block is avoided, on the one hand, the clamping of the cable by the convex block 44 is more safe and reliable, and on the other hand, the processing of the convex block 44 is more convenient and fast.

[0035] The specific working process of the utility model is as follows:

[0036] After the cable 2 is sequentially inserted into the wire clamp sleeve 42 and the adapter ring 41, it is combined with the pin assembly 1 in the sleeve 3 (the specific structure of the pin assembly 1 and the connection between the pin assembly 1 and the cable 2 are both prior art, which will not be described in detail here), then the adapter ring 41 is connected with the sleeve 3, the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 of the pressing unit 43 are buckled in the accommodating groove 421 of the wire clamp sleeve 42 respectively, then the bolt 47 is sequentially inserted through the through hole 45 of the arc-shaped pressing block two 432, the through hole 4221 on the connecting plate 422, and then screwed into the threaded hole 46 on the arc-shaped pressing block one 431, the two bolts 47 are symmetrically tightened, so that the protrusions 44 on the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 are symmetrically pressed against the protective layer of the cable 2, when the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 are both in contact with the connecting plate 422, the pressing degree of the protrusions 44 against the protective layer of the cable 2 just meets the installation requirements, at this time the connection between the cable 2 and the connector is completed, the height of the protrusions 44 inside the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 and the thickness of the connecting plate 422 are determined through prior test design, which ensures that the cable 2 is tightly pressed while avoiding damage to the protective layer of the cable 2, and avoids the influence of manual screwing of the bolt 47 on the pressing effect of the cable 2.

[0037] The cable 2 is clamped between the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 of the connecting plate 422, and is clamped by the protrusions 44 inside the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432, on the one hand, the friction between the protective layer of the cable 2 and the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 is increased, and the clamping of the cable 2 is more firm and reliable, on the other hand, the spacing between the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 is limited by the connecting plate 422, which avoids excessive pressing of the protrusions 44 against the cable 2 caused by excessive manual screwing of the bolt 47, and the pressing and fixing of the cable 2 by the pressing unit 43 is more secure, which avoids damage to the protective layer of the cable 2 by the connector.

[0038] The clamping of the arc-shaped pressing block one 431 and the arc-shaped pressing block two 432 makes the stress of the cable uniform, the clamped cable tension can reach 100N-120N, and the displacement distance is within 3mm, which prevents the cable from being pulled off by non-human during operation.

[0039] Embodiment two

[0040] Referring to Figs. 1-3 , the connection between the sleeve 3 and the wire clamp sleeve 42 is further designed in this embodiment, specifically, the end of the sleeve 3 is provided with an external thread 31, the inside of one end of the adapter ring 41 is provided with an internal thread 411, and the adapter ring 41 is threadedly connected with the sleeve 3.

[0041] The outer side of the wire clamp sleeve 42 is provided with an annular groove one 423, the annular groove one 423 is sleeved with a circlip 49, the other end of the adapter ring 41 is provided with an annular groove two 412 for fastening the circlip 49, the adapter ring 41 is rotatably connected with the wire clamp sleeve 42 through the circlip 49, through the setting of the circlip 49, the rotatable connection of the adapter ring 41 and the clamp sleeve is realized, so that the quick connection of the adapter ring 41 and the sleeve 3 is realized.

[0042] Specifically, the outer side of the wire clamp sleeve 42 is provided with a limiting block 424, the outer thread 31 of the sleeve 3 is provided with a limiting groove 311 allowing the limiting block 424 to pass through, and the wire clamp sleeve 42 is detachably arranged in the sleeve 3.

[0043] When the wire clamp sleeve 42 is installed with the sleeve 3, the limiting block 424 of the clamp sleeve is first aligned and inserted into the limiting groove 311 of the sleeve 3, then the adapter ring 41 is screwed into the outer thread 31 of the sleeve 3, when the adapter ring 41 is firmly connected with the sleeve 3, the wire clamp sleeve 42 is fixedly arranged in the sleeve 3, the limiting block 424 of the wire clamp sleeve 42 is limited by the limiting groove 311 of the sleeve 3, so that the wire clamp sleeve 42 is prevented from rotating along the sleeve 3 due to the movement of the cable 2 in the use process of the connector, the connection of the cable 2 is more firm and reliable, and since the adapter ring 41 is rotatably connected with the wire clamp sleeve 42, the adapter ring 41 is prevented from rotating due to the movement of the cable 2 on the wire clamp sleeve 42, and the reliability of the connection of the connector and the cable 2 is further improved.

[0044] The above only describes the exemplary embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the technical concept of the utility model and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. A connector plug fastening structure for nuclear power, comprising a pin assembly (1) which is detachably connected at one end to a socket, the other end of said pin assembly (1) being connected to a cable (2), characterized in that, The utility model also includes sleeve (3) which is sleeved outside the pin assembly (1), wire pressing assembly (4) which is used for pressing the cable (2), the wire pressing assembly (4) is connected with the end of sleeve (3), the wire pressing assembly (4) includes the adapter ring (41) of one end connection sleeve (3), the wire clamp sleeve (42) of the other end connection of adapter ring (41), the pressing unit (43) of separable connection of wire clamp sleeve (42), the lateral portion of wire clamp sleeve (42) is provided with two accommodating grooves (421) through, the pressing unit (43) includes the arc-shaped pressing block one (431) and arc-shaped pressing block two (432) that are arranged in accommodating groove (421) respectively and are pressed outside cable (2).

2. The connector plug fastening structure for nuclear power use according to claim 1, characterized by The inner side of the arc-shaped pressing block one (431) and the arc-shaped pressing block two (432) is provided with a plurality of protrusions (44) for pressing the cable (2), both ends of the arc-shaped pressing block one (431) are provided with through holes (45), both ends of the arc-shaped pressing block two (432) are provided with threaded holes (46), the arc-shaped pressing block one (431) and the arc-shaped pressing block two (432) are fastened and connected by bolts (47).

3. The connector plug fastening structure for nuclear power use according to claim 2, characterized by The lateral portion of the wire clamp sleeve (42) is provided with a connecting plate (422) between the two accommodating grooves (421), the connecting plate (422) is used for fixing the pressing unit (43), the arc-shaped pressing block one (431) and the arc-shaped pressing block two (432) are arranged on both sides of the connecting plate (422) respectively, the connecting plate (422) is provided with a through hole (4221) allowing the bolt (47) to pass through, and the bolt (47) passes through the through hole (4221).

4. The connector plug fastening structure for nuclear power use according to claim 2, characterized by The outer side of the arc-shaped pressing block one (431) and the arc-shaped pressing block two (432) is provided with a relief groove (48) for accommodating the end of the bolt (47).

5. The connector plug fastening structure for nuclear power use according to claim 3, characterized by The end of the sleeve (3) is provided with an external thread (31), the inner side of one end of the adapter ring (41) is provided with an internal thread (411), and the adapter ring (41) is threadedly connected with the sleeve (3).

6. The connector plug fastening structure for nuclear power use according to claim 5, characterized by The outer side of the wire clamp sleeve (42) is provided with an annular groove one (423), a circlip (49) is sleeved in the annular groove one (423), the inner side of the other end of the adapter ring (41) is provided with an annular groove two (412) for fastening the circlip (49), and the adapter ring (41) is rotationally connected with the wire clamp sleeve (42) through the circlip (49).

7. The connector plug fastening structure for nuclear power use according to claim 6, characterized by The outer side of the wire clamp sleeve (42) is provided with a limiting block (424), the external thread (31) part of the sleeve (3) is provided with a limiting groove (311) allowing the limiting block (424) to pass through, and the wire clamp sleeve (42) is separably arranged in the sleeve (3).

8. The connector plug fastening structure for nuclear power use according to claim 7, characterized by The outer side of the wire clamp sleeve (42) is provided with an annular stop table (425), and the end of the sleeve (3) is separably abutted with the annular stop table (425).

9. The connector plug fastening structure for nuclear power use according to Claim 3, characterized by The protrusions (44) are evenly arranged on the inner side of the arc-shaped pressing block one (431) and the arc-shaped pressing block two (432).

10. The connector plug fastening structure for nuclear power use according to claim 9, characterized by The protrusion (44) is a quadrangular pyramid.

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