Hoisting tool for nuclear power unit fuel endoscopy

Abstract

The utility model is applicable to the field of nuclear power detection, and discloses a nuclear power unit fuel endoscope inspection hoisting tool which comprises a bracket, a mounting assembly arranged at one end of the bracket and used for fixing an endoscope, and a connecting assembly arranged at one end, far away from the mounting assembly, of the bracket and used for being connected with lifting equipment, wherein the connecting assembly comprises a base fixed to the support and a sleeve connected to the base in a sleeving mode and detachably connected with the lifting equipment, a first through hole is formed in the base, a second through hole matched with the first through hole in position and shape is formed in the sleeve, and the first through hole and the second through hole are connected through a bolt and a nut. The endoscope is fixed to the support through the installation assembly, then the lifting device is connected to the support through the sleeve and the base, then the endoscope is hoisted, when the endoscope needs to be dismantled from the lifting device, only the bolt needs to be unscrewed, and the whole hoisting tool is simple in structure, convenient to disassemble and assemble and high in practicability. And the situation of jamming caused by rusting of internal threads is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power detection field especially relates to a nuclear power unit fuel endoscope inspection hoisting tool. BACKGROUND

[0002] Nuclear power unit fuel assembly carries out visual inspection usually uses to endoscope, but the length size of spyglass is shorter, and nuclear fuel assembly is in several meters deep underwater, however underwater environment has very high radiation and higher water temperature environment, need to have the tool and extend the endoscope underwater to explore, but the prior art is too complex, can cause the tool of endoscope to be stuck, cannot remove endoscope, lack a kind of endoscope hoisting tool that can work in high radiation high water temperature environment. SUMMARY

[0003] The utility model provides a nuclear power unit fuel endoscope inspection hoisting tool to solve the technical problems.

[0004] The utility model discloses a nuclear power unit fuel endoscope inspection hoisting tool, including: support, set up in the mounting assembly of the support one end and be used for fixed endoscope, set up in the support and be used for with the connecting assembly of lifting equipment connection away from the mounting assembly one end;Wherein, the connecting assembly includes the base fixed in the support, the sleeve of sleeveing on the base and with lifting equipment detachable connection, and fixed component, the first through -hole is equipped on the base, the second through -hole is equipped with on the sleeve and the first through -hole position and shape are matched, the first through -hole and the second through -hole are connected by fixed component.

[0005] In some embodiments, the mounting assembly includes a mounting seat disposed on the support, and a clamping member disposed on the mounting seat, the clamping member and the mounting seat clamp and fix the endoscope.

[0006] In some embodiments, the mounting seat and the clamping member abutment are provided with a fixed hole matched with the external shape of the endoscope, and the endoscope is provided in the fixed hole.

[0007] In some embodiments, the axis of the fixed hole is on the same straight line as the axis of the sleeve.

[0008] In some embodiments, the mounting seat is provided with a threaded hole on both sides of the abutment of the endoscope, and the clamping member is provided with a third through hole corresponding to the threaded hole.

[0009] In some embodiments, the support includes a bottom plate, a first connecting plate disposed on one end of the bottom plate and connected with the mounting assembly.

[0010] In some embodiments, the first connecting plate is vertically arranged on the bottom plate.

[0011] In some embodiments, the sleeve is provided with a sleeve hole for sleeving the base, and the sleeve hole is provided with an internal thread at an end away from the base for connecting with a lifting device.

[0012] In some embodiments, the sleeve is provided with a clamping groove on the outer circle of the end away from the base, and the two clamping grooves are symmetrically arranged on the sleeve.

[0013] In some embodiments, the outer surface of the bracket, the mounting assembly and the connecting assembly is provided with an anti-rust layer.

[0014] The utility model discloses a nuclear power unit fuel endoscope inspection hoisting tool has the following beneficial effects: the endoscope is fixed on the bracket through the mounting assembly, then the lifting device is connected to the bracket through the sleeve and the base, then the endoscope hoisting is completed, when needing to remove the endoscope from the lifting device, only need to twist open the fixing assembly, the whole hoisting tool structure is simple, and the dismounting is convenient, avoids the situation that the internal thread is rusted and is stuck. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings and embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained without the creative labor on the premise of the drawings.

[0016] Figure 1 It is a whole view of a nuclear power unit fuel endoscope inspection hoisting tool in an embodiment of the utility model;

[0017] Figure 2 It is a bracket structure view of a nuclear power unit fuel endoscope inspection hoisting tool in an embodiment of the utility model;

[0018] Figure 3 It is a direct front view of a nuclear power unit fuel endoscope inspection hoisting tool in an embodiment of the utility model;

[0019] Figure 4 It is a sectional view of the connecting assembly of a nuclear power unit fuel endoscope inspection hoisting tool in an embodiment of the utility model;

[0020] Figure 5 It is a sleeve front view of a nuclear power unit fuel endoscope inspection hoisting tool in an embodiment of the utility model;

[0021] Figure 6 is a sleeve sectional view of a nuclear power unit fuel endoscope inspection hoisting tool in an embodiment of the utility model.

[0022] Reference signs

[0023] 100, lifting equipment;200, endoscope;300, support;310, sleeve;311, second through hole;312, clamping groove;313, sleeve hole;320, base;321, first through hole;330, first connecting plate;340, mounting seat;341, clamping part;400, fixing assembly. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, objects and effects of the utility model, the specific embodiments of the utility model will be described in detail with reference to the drawings. In the following description, it should be understood that the orientation or positional relationship indicated by "upper", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is constructed and operated in a particular orientation, and is only for the convenience of describing the technical scheme, and does not indicate that the device or element must have a particular orientation, so it cannot be understood as a limitation on the utility model.

[0025] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "fixing", "setting", etc. should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the technical scheme, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third", etc. can be explicitly or implicitly include one or more of the features. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Figures 1 to 6The utility model discloses a kind of nuclear power unit fuel endoscopes 200 inspection hoisting tools shown in an embodiment of the utility model, which can be used for nuclear power plant endoscope 200 detection, which can include support 300, installation assembly for being arranged at one end of support 300 and being used to fix endoscope 200, connecting assembly for being arranged at one end of support 300 away from installation assembly and being used to connect with lifting equipment 100;Wherein, connecting assembly includes base 320 fixed in support 300, sleeve 310 sleeved on base 320 and detachably connected with lifting equipment 100, and fixing assembly 400, first through-hole 321 is equipped on base 320, second through-hole 311 is equipped on sleeve 310 and is matched with the position and shape of first through-hole 321, and first through-hole 321 and second through-hole 311 are connected by fixing assembly 400.Endoscope 200 is fixed on support 300 by installation assembly, then lifting equipment 100 is connected to support 300 by sleeve 310 and base 320, then endoscope 200 hoisting is completed, when endoscope 200 needs to be removed from lifting equipment 100, only need to twist open fixing assembly 400, whole hoisting tool structure is simple, dismounting is convenient, avoid the situation that it is stuck because internal thread rust.

[0027] In a specific embodiment, fixing assembly 400 is bolt and nut combination, bolt passes through first through-hole 321 and second through-hole 311 and is connected and fixed with nut.

[0028] It can be understood that, when removal is needed, only after nut and bolt are loosened and disassembled, sleeve 310 can be separated from base 320.

[0029] In a specific embodiment, installation assembly and connecting assembly are both welded to support 300.

[0030] Figure 1 、 Figure 2 And Figure 5 First shielding unit shown in an embodiment can include installation assembly including mounting seat 340 arranged on support 300, clamping piece 341 arranged on mounting seat 340, clamping piece 341 and mounting seat 340 clamp and fix endoscope 200, mounting seat 340 is fixed on support 300, clamping piece 341 exerts pressure on endoscope 200, so that endoscope 200 is fixed on mounting seat 340.

[0031] Figure 1 、 Figure 2 And Figure 3The mounting seat 340 and the clamping piece 341 can be provided with a fixing hole matched with the outer shape of the endoscope 200 in an embodiment. The endoscope 200 is arranged in the fixing hole. The matched fixing hole shape can avoid crushing the endoscope 200, and increase the contact area and the friction.

[0032] Figure 1 、 Figure 2 and Figure 3 The fixing hole can be provided with an axis that is in line with the axis of the sleeve 310 in an embodiment. When hoisting, only the position of the lifting device 100 needs to be adjusted to align the position to be detected, so that the position adjustment process is omitted, and the installation efficiency is improved.

[0033] Figure 1 、 Figure 2 and Figure 3 The mounting seat 340 can be provided with threaded holes on both sides of the mounting seat 340 abutting against the endoscope 200 in an embodiment. The clamping piece 341 is provided with a third through hole corresponding to the threaded hole. The clamping piece 341 is fixed in the threaded hole through a screw, and the screw torque can be adjusted.

[0034] Figure 1 、 Figure 2 and Figure 3 The bracket 300 can include a bottom plate, a first connecting plate 330 arranged at one end of the bottom plate and connected with the mounting assembly in an embodiment. The bottom plate and the first connecting plate 330 are fixed by welding, and the structure is simple, the processing is convenient, and the cost is low.

[0035] Figure 1 、 Figure 2 and Figure 3 The bracket 300 can include that the first connecting plate 330 is arranged vertically on the bottom plate, so that the connecting assembly and the mounting assembly are connected.

[0036] Figure 1 、 Figure 2 and Figure 3 The sleeve 310 can be provided with a sleeving hole 313 for sleeving the base 320 in an embodiment. The sleeving hole 313 is provided with an internal thread at an end away from the base 320 for connecting with the lifting device 100. The device can be detachably connected with the sleeve 310 through the internal thread.

[0037] Figure 1 、 Figure 2 and Figure 3The sleeve 310 can include a clamping groove 312 on the outer circle of the end of the sleeve 310 away from the base 320 in an embodiment. Two clamping grooves 312 are symmetrically arranged on the sleeve 310. The clamping groove 312 facilitates the wrench to be fixed in the clamping groove 312. The wrench can twist the sleeve 310 to be connected or separated from the lifting device 100.

[0038] Figure 4 、 Figure 5 and Figure 6 Figure 4 Figure 5 Figure 6 Figure 1 Figure 2 Figure 3 The bracket 300, the mounting assembly and the connecting assembly can be provided with a rust-proof layer on the outer surface in an embodiment. The rust-proof layer can protect the bracket 300, the mounting assembly and the connecting assembly from corrosion in a high-temperature liquid environment, and improve the service life of the workpiece.

[0039] In a specific embodiment, the bracket 300, the mounting assembly and the connecting assembly are all provided with a chromium plating layer on the surface.

[0040] It can be understood that the above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed. However, it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application. A number of variations and improvements can also be made, which all belong to the protection scope of the present application. Therefore, any equivalent transformation and modification within the scope of the claims of the present application should belong to the scope of the claims of the present application.

Claims

1. A nuclear power plant fuel in¬ spection hoist tool, characterized in that, The utility model relates to a telescopic endoscope fixing device, including: a support (300), a mounting assembly arranged at one end of the support (300) and used for fixing an endoscope (200), and a connecting assembly arranged at an end of the support (300) away from the mounting assembly and used for connecting with a lifting device (100); wherein the connecting assembly comprises a base (320) fixed to the support (300), a sleeve (310) sleeved on the base (320) and detachably connected with the lifting device (100), and a fixing assembly (400), the base (320) is provided with a first through hole (321), the sleeve (310) is provided with a second through hole (311) matching the position and shape of the first through hole (321), and the first through hole (321) and the second through hole (311) are connected through the fixing assembly (400).

2. A nuclear power plant fuel inspection hoisting tool according to claim 1, characterized in that, The mounting assembly comprises a mounting seat (340) arranged on the support (300) and a clamping piece (341) arranged on the mounting seat (340), and the clamping piece (341) and the mounting seat (340) clamp and fix the endoscope (200).

3. A nuclear power plant fuel inspection hoisting tool according to claim 2, wherein, A fixing hole matching the external shape of the endoscope (200) is arranged at the abutting position of the mounting seat (340) and the clamping piece (341), and the endoscope (200) is arranged in the fixing hole.

4. A nuclear power plant fuel inspection hoisting tool according to claim 3, characterized in that, The axis of the fixing hole is on the same straight line as the axis of the sleeve (310).

5. The fuel inspection hoisting tool of claim 2, wherein, The mounting seat (340) is provided with a threaded hole at both sides of the abutting position of the endoscope (200), and the clamping piece (341) is provided with a third through hole at a position corresponding to the threaded hole.

6. The fuel inspection hoisting tool of claim 1, wherein, The support (300) comprises a bottom plate, a first connecting plate (330) arranged at one end of the bottom plate and connected with the mounting assembly.

7. A nuclear power plant fuel inspection hoisting tool according to claim 6, wherein, The first connecting plate (330) is arranged vertically on the bottom plate.

8. The fuel inspection hoist tool of claim 1, wherein, The sleeve (310) is provided with a sleeving hole (313) for sleeving the base (320), and the sleeving hole (313) is provided with an internal thread at an end away from the base (320) and used for connecting with the lifting device (100).

9. The fuel inspection hoist tool of claim 1, wherein, The sleeve (310) is provided with a clamping groove (312) on the outer circle of the end away from the base (320), and two clamping grooves (312) are symmetrically arranged on the sleeve (310).

10. The fuel inspection hoist tool of claim 1, wherein, The outer surfaces of the support (300), the mounting assembly and the connecting assembly are provided with an anti-rust layer.

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