Fixing device

Abstract

The invention provides a fixing device, which is applied to a detector and comprises a wall body fixing piece and a detector fixing piece, the wall fixing piece comprises a first end and a second end, the first end is used for being fixedly connected with a wall, and the second end is provided with a first inserting part; the detector fixing part comprises a connecting end and an installing end, the installing end is used for installing a detector, the connecting end is provided with a second inserting part, and the second inserting part is matched with the first inserting part so that the detector fixing part provided with the detector can be connected to the wall fixing part. The wall body fixing piece is fixed on a wall body, the detector fixing piece is used for installing a detector, the wall body fixing piece is provided with a first inserting part, the detector fixing piece is provided with a second inserting part, and through the connection of the first inserting part and the second inserting part, in the regular metrological verification process, the detector can be fixed on the wall body. When the detector is assembled, the whole body formed by the detector fixing piece and the detector is directly taken out from the wall body fixing piece in a sliding manner, so that the detector is prevented from being frequently assembled and disassembled, and the detector is prevented from being damaged.

Description

Technical Field

[0001] The present application belongs to the technical field of fixed installation of nuclear reactor area radiation monitoring detectors, and specifically relates to a fixing device. Background Art

[0002] The reactor radiation protection and monitoring system requires regular instrument metrology verification. Daily instrument metrology verification work includes three contents: 1) instrument disassembly and assembly; 2) instrument transportation; 3) instrument metrology verification. In order to complete the first two tasks, hundreds of nuclear reactor area radiation monitoring detectors in the site need to be regularly disassembled and transported, and finally metrology identification is carried out at the metering station. Due to the design of existing detectors and their fixing devices, they are frequently disassembled and assembled, which will cause damage to the detector's fixing components and lead to the loss of fixing parts. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present application is to provide a fixing device to solve at least one of the above problems existing in the prior art.

[0004] In order to solve the above-mentioned problem, the present application provides a fixing device, which is applied to the detector, and the fixing device includes a wall fixing and a detector fixing; the wall fixing includes a first end and a second end, the first end is used to be fixedly connected to the wall, and the second end is provided with a first plug-in portion; the detector fixing includes a connecting end and an installing end, the installing end is used to install the detector, and the connecting end is provided with a second plug-in portion, and the second plug-in portion is adapted to the first plug-in portion so that the detector fixing with the detector installed is connected to the wall fixing.

[0005] Optionally, the first plug-in portion or the second plug-in portion is provided with an insertion end, a limiting hole is provided on a groove wall arranged opposite to the insertion end, and a limiting screw is provided in the limiting hole.

[0006] Optionally, an adjustment hole is provided at the first end of the wall fixing, and a wall end connecting bolt passes through the adjustment hole to install the wall fixing on the wall, and the wall fixing moves along the wall end connecting bolt relying on the adjustment hole to move the wall fixing to a preset height position.

[0007] Optionally, the detector fixing member includes a detector end connecting plate and a third connecting plate, the detector end connecting plate is used to connect to the detector, the third connecting plate is connected to an end of the detector that is not connected to the detector end connecting plate, and the second plug-in portion is arranged at an end of the third connecting plate that is not connected to the detector end connecting plate.

[0008] Optionally, the detector fixing member further includes an adapter plate, one end of which is connected to the detector end connecting plate, and the other end of which is connected to the third connecting plate, and the adapter plate rotates relative to the third connecting plate to rotate the detector to a preset angle position.

[0009] Optionally, the detector fixing member further includes a power assembly, and the power assembly is used to drive the adapter plate to rotate.

[0010] Optionally, the power assembly includes a worm and a worm wheel, wherein both ends of the worm are respectively connected to bearing seats, and the worm rotates relative to the bearing seat. The bearing seat is arranged on the end face of the third connecting plate, and the adapter plate at least partially extends to the outside of the third connecting plate so that the worm wheel can be installed on the adapter plate. The worm wheel is meshed with the worm, and the worm drives the adapter plate to rotate so that the detector rotates to a preset angle.

[0011] Optionally, the power assembly further includes a handwheel, and one end of the worm at least partially extends out of the bearing seat so that the handwheel can be mounted on the worm.

[0012] Optionally, the surface of the detector end connecting plate in contact with the detector is adapted to the outer surface of the detector.

[0013] Optionally, both the detector fixing member and the wall fixing member are provided with hollow portions.

[0014] Beneficial Effects

[0015] A fixing device provided in an embodiment of the present invention is a universal nuclear reactor area monitoring detector fixing device, including a wall fixing part and a detector fixing part. The wall fixing part is fixed to the wall, and the detector fixing part is installed with the detector. A first plug-in part is provided on the wall fixing part, and a second plug-in part is provided on the detector fixing part. Through the connection between the first plug-in part and the second plug-in part, a sliding matching relationship between the detector fixing part and the wall fixing part is realized. During regular metrological calibration, it is only necessary to slide the detector fixing part and the detector as a whole directly out of the wall fixing part to avoid frequent disassembly and assembly thereof, thereby ensuring that the detector is not damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric view of a fixing device according to an embodiment of the present application;

[0017] Figure 2 This is a front view of a fixing device according to an embodiment of the present application;

[0018] Figure 3 A top view of a fixing device according to an embodiment of the present application;

[0019] Figure 4 A top view of a wall fixing member according to an embodiment of the present application;

[0020] Figure 5 This is a front view of a wall fixing member according to an embodiment of the present application;

[0021] Figure 6 A side view of a wall fixing member according to an embodiment of the present application;

[0022] Figure 7 A top view of a detector fixing member according to an embodiment of the present application;

[0023] Figure 8 This is a front view of a detector fixing member according to an embodiment of the present application;

[0024] Fig. 9 A front view of a detector fixing member with a power assembly according to an embodiment of the present application;

[0025] Fig.10 A top view of a detector fixture with a power assembly according to an embodiment of the present application.

[0026] The reference numerals are as follows:

[0027] 1-wall fixing piece, 101-slot, 102-wall end connecting plate, 103-first connecting plate, 104-limiting screw, 105-second connecting plate;

[0028] 2-detector fixing part, 201-detector end connecting plate, 202-insertion block, 203-third connecting plate, 204-adapter plate, 205-power assembly, 20501-worm, 20502-worm wheel, 20503-bearing seat, 20504-handwheel;

[0029] 3-Detector

[0030] 4-Hollow part. DETAILED DESCRIPTION

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] See also Figures 1 to 10 As shown, according to an embodiment of the present application, a fixing device is provided, which is applied to a detector. The fixing device includes a wall fixing 1 and a detector fixing 2. The wall fixing 1 includes a first end and a second end, the first end is used to be fixedly connected to the wall, and the second end is provided with a first plug-in portion; the detector fixing 2 includes a connecting end and an installing end, the installing end is used to install the detector 3, and the connecting end is provided with a second plug-in portion; the second plug-in portion is adapted to the first plug-in portion so that the detector fixing 2 installed with the detector 3 is connected to the wall fixing 1.

[0036] The wall fixing part 1 is fixed to the wall by bolts, and the detector fixing part 2 is used to install the detector 3 by bolts. The wall fixing part 1 is provided with a first plug-in part, and the detector fixing part 2 is provided with a second plug-in part. Through the connection between the first plug-in part and the second plug-in part, the sliding matching relationship between the detector fixing part 2 and the wall fixing part 1 is realized. During the regular metrological verification process, it is only necessary to slide the whole composed of the detector fixing part 2 and the detector 3 directly out of the wall fixing part, so as to avoid frequent disassembly and assembly, ensure that the detector 3 is not damaged, and improve the service life of the detector 3. At the same time, it has the characteristics of high strength, easy disassembly and assembly, wide application range and strong versatility.

[0037] Among them, the first plug-in part can be a slot or a block, and similarly, the second plug-in part can be a slot or a block, that is, when the first plug-in part is the slot 101, the second plug-in part is the block 202; at this time, the block 202 at the connecting end of the detector fixing 2 cooperates with the slot 101 at the second end of the wall fixing 1, so that the detector fixing 2 with the detector 3 installed is connected to the wall fixing 1; when the first plug-in part is the block 202, the second plug-in part is the slot 101; at this time, the slot 101 at the connecting end of the detector fixing 2 cooperates with the block 202 at the second end of the wall fixing 1, so that the detector fixing 2 with the detector 3 installed is connected to the wall fixing 1.

[0038] Specifically, in this embodiment, the plug block 202 is a trapezoidal plug block, the slot 101 is a trapezoidal slot, and the four corners of the plug block 202 are chamfered to avoid damage to the corners during the disassembly process, which may cause the installation to fail.

[0039] The first plug part or the second plug part is provided with an insertion end, and a limit hole is provided on the groove wall opposite to the insertion end, and a limit screw 104 is provided in the limit hole. The setting of the limit screw 104 enables the detector fixing part 2 to be fixed on the wall fixing part 1, ensuring the stability of the connection between the two.

[0040] Among them, the first plug-in part or the second plug-in part is provided with an insertion end, and a limiting hole is provided on the groove wall arranged opposite to the insertion end, and a limiting screw 104 is arranged in the limiting hole. That is to say, when the second plug-in part of the detector fixing member 2 is an insert block 202, the first plug-in part of the wall fixing member 1 is a slot 101, one end of the slot 101 is an insertion end and the other end is a closed end. At this time, the limiting hole is arranged at the insertion end of the slot 101 of the wall fixing member 1; when connecting, the insert block 202 of the detector fixing member 2 equipped with the detector 3 is inserted from the insertion end into the slot 101 of the wall fixing member 1, and then the limiting screw 104 is screwed to the wall fixing member. The detector fixing part 2 is fixed on the wall fixing part 1 on the limiting hole of the fixing part 1; when the second plug-in part of the detector fixing part 2 is the slot 101, the first plug-in part of the wall fixing part 1 is the plug block 202, one end of the slot 101 is the insertion end and the other end is the closed end. At this time, the limiting hole is set at the insertion end of the slot 101 of the detector fixing part 2; when connecting, the slot 101 of the detector fixing part 2 installed with the detector 3 is inserted into the plug block 202 of the wall fixing part 1 through the insertion end, and then the limiting screw 104 is screwed into the limiting hole of the detector fixing part 2 to fix the detector fixing part 2 on the wall fixing part 1.

[0041] Specifically, the hole wall of the limiting hole is processed with a thread matched with the limiting screw 104, so that the limiting screw 104 and the limiting hole are threadedly connected to avoid the limiting screw 104 falling off during the detection process.

[0042] An adjustment hole is provided at the first end of the wall fixing member 1, and the wall end connecting bolt passes through the adjustment hole to install the wall fixing member 1 on the wall. The wall fixing member 1 moves along the wall end connecting bolt via the adjustment hole to move the wall fixing member 1 to a preset height position.

[0043] Among them, the wall fixing part 1 includes a wall end connecting plate 102, a first connecting plate 103 and a second connecting plate 105, one end of the second connecting plate 105 is connected to the first connecting plate 103, a first plug-in portion is provided on the first connecting plate 103, and the other end of the second connecting plate 105 is connected to the wall end connecting plate 102. In order to realize the height adjustment of the detector 3, adjustment holes are opened at the four corners of the wall end connecting plate 102, and the wall end connecting bolts pass through the adjustment holes to install the wall fixing part 1 on the wall.

[0044] Specifically, the preset height is a specific installation height required according to actual working conditions.

[0045] In specific implementation, the wall end connection bolt passes through the adjustment hole to pre-install the wall fixture 1 on the wall. At this time, the wall end connection bolt is not tightened. Then, according to the specific working conditions, the wall fixture 1 is pushed through the adjustment hole and moved along the wall end connection bolt to move the wall fixture 1 to a preset height position. Then, the wall end connection bolt is tightened. At this time, the wall fixture 1 is fixedly installed on the wall. The accuracy of the position installation of the detector 3 is ensured and the installation error is reduced.

[0046] The detector fixture 2 includes a detector end connection plate 201 and a third connection plate 203. The detector end connection plate 201 is used to connect with the detector 3. The third connection plate 203 is connected to the end of the detector end connection plate 201 that is not connected to the detector 3. The second plug-in portion is arranged at the end of the third connection plate 203 that is not connected to the detector end connection plate 201. Through the arrangement of the detector fixture 2, after the detector 3 is installed on the detector fixture 2, in the subsequent metrological verification process, the detector 3 does not need to be frequently disassembled and assembled, and the detector 3 will not be damaged.

[0047] During the disassembly, assembly and transportation process, the detector 3 and the detector fixing part 2 are installed as a whole, which can ensure that the detector 3 does not roll on the ground during the disassembly, assembly and transportation process. At the same time, the detector fixing part 2 can serve as a handle, which is convenient for short-distance manual transportation by staff.

[0048] The detector fixing member 2 further includes an adapter plate 204, one end of which is connected to the detector end connecting plate 201, and the other end is connected to the third connecting plate 203. The adapter plate 204 rotates relative to the third connecting plate 203 to rotate the detector 3 to a preset angle position.

[0049] Among them, the upper and lower ends of the adapter plate 204 are provided with rotating shafts, and the end of the third connecting plate 203 without the first plug-in part is provided with an axial hole. The adapter plate 204 cooperates with the axial hole on the third connecting plate 203 through the rotating shaft thereon, so that the adapter plate 204 can rotate relative to the third connecting plate 203, and rotate the detector 3 to a preset angle position.

[0050] Specifically, in order to reduce the rotational friction between the adapter plate 204 and the third connecting plate 203, a bearing is installed between the adapter plate 204 and the shaft hole of the third connecting plate 203 to convert the rotational friction into rolling friction, thereby reducing the friction force.

[0051] The preset angle here refers to adjusting the detector 3 to an angle determined according to actual working conditions through the adapter plate 204 .

[0052] The detector fixing member 2 further includes a power assembly 205, which is used to drive the adapter plate 204 to rotate. The power assembly 205 is used to provide a driving force to the adapter plate 204, and the adapter plate 204 is driven to rotate under the action of the driving force.

[0053] The power assembly 205 includes a worm 20501 and a worm wheel 20502. Both ends of the worm 20501 are respectively connected to the bearing seat 20503. The worm 20501 rotates relative to the bearing seat 20503. The bearing seat 20503 is arranged on the end face of the third connecting plate 203. The adapter plate 204 at least partially extends to the outside of the third connecting plate 203 so that the worm wheel 20502 can be installed on the adapter plate 204. The worm wheel 20502 is meshed with the worm 20501, and the worm 20501 drives the adapter plate 204 to rotate so that the detector 3 rotates to a preset angle.

[0054] The worm 20501 is rotated manually, and the worm 20501 rotates to drive the worm wheel 20502 meshed therewith to rotate. Since the worm wheel 20502 is mounted on the adapter plate 204, the adapter plate 204 rotates along with the worm wheel 20502, thereby rotating the detector 3 mounted on the detector end connecting plate 201 to a preset angle. The worm wheel 20502 and the worm 20501 cooperate to adjust the rotation angle of the detector 3, which has a simple structure and is easy to adjust.

[0055] Specifically, the preset angle here is the rotation angle position determined by the detector 3 according to the actual working condition.

[0056] The power assembly 205 also includes a handwheel, and one end of the worm 20501 at least partially extends out of the bearing seat 20503, so that the handwheel is installed on the worm 20501. Through the setting of the handwheel, the operator can better transmit the force to the worm 20501 through the handwheel, so as to facilitate the rotation of the worm 20501.

[0057] Among them, one end of the worm 20501 at least partially extends out of the corresponding bearing seat 20503, and the extended part is stepped, including a large diameter part and a small diameter part. At least part of the outer circumference of the large diameter part is processed into a polygon, and the center hole of the handwheel is also processed into a polygonal hole, which cooperates with the polygonal outer surface of the large diameter part to facilitate the rotation of the worm 20501 by the handwheel. The small diameter part is connected to an end plate away from the end face of the large diameter part by screws to prevent the handwheel from falling off from the small diameter end.

[0058] Specifically, when the worm 20501 needs to be rotated, the inner hole of the handwheel is matched with the polygonal outer surface of the large diameter part to rotate the worm 20501; when the worm 20501 does not need to be rotated, the handwheel is placed on the small diameter part to avoid scraping the handwheel to cause the worm 20501 to rotate when the angle does not need to be adjusted.

[0059] The surface of the detector end connecting plate 201 in contact with the detector 3 is matched with the outer surface of the detector 3 .

[0060] The surface of the detector end connecting plate 201 is adapted to the outer surface of the detector 3, that is, the surface of the detector end connecting plate 201 is consistent with the shape of the outer surface of the detector 3, which increases the contact area between the detector end connecting plate 201 and the detector 3, and fastens the two by means of bolts, thereby improving the installation stability between the two and ensuring the detachability between the two.

[0061] The detector fixing member 2 and the wall fixing member 1 are both provided with a hollow portion 4 .

[0062] Among them, a hollow portion 4 is provided on both the detector fixing member 2 and the wall fixing member 1; specifically, a hollow portion 4 is provided on the third connecting plate 202 of the detector fixing member 2, and a hollow portion 4 is provided on the second connecting plate 105 of the wall fixing member 1, which reduces the overall weight of the fixing device while ensuring the overall installation strength.

[0063] The detector 3 includes an outer shell, which includes a cylinder, an upper end cover and a lower end cover. The upper end cover and the lower end cover are threadedly connected at both ends of the cylinder, and the lower end cover is threadedly connected to a data wiring port. A threaded hole is opened on the cylinder, and bolts screw the cylinder to the detector fixing part 2.

[0064] The fixture proposed in this application solves the reliability requirements of the regional radiation monitoring detectors and their fixture components in the nuclear reactor, and solves the personnel disassembly and assembly requirements of the detectors during the measurement and detection process; it improves the efficiency of personnel disassembly and assembly, transportation efficiency, reduces the labor intensity of personnel, avoids damage to parts and detectors, reduces labor costs and time expenditures, and adapts to the timeliness requirements of on-site work. The operation is simple and efficient, improves the efficiency of instrument disassembly and assembly, reduces the labor intensity of personnel and the requirements for personnel, and can significantly shorten the work cycle.

[0065] The fixture proposed in this application is compatible with both regional gamma detectors and ionization chamber detectors, achieving the purpose of unifying the detector fixture for monitoring the reactor area, and has the characteristics of small size, high strength, easy disassembly and assembly, wide application range, and strong versatility. It has broad application prospects in nuclear power, research reactors, test reactors and other large nuclear facilities. The universal fixture has a simple structure, high strength, is not easy to deform, and is easy to process. It can meet the needs of fixing detectors 3 of different types and weights in the reactor, and can bear a maximum load of 50KG.

[0066] The wall fixings 1 and detector fixings 2 are made of high-strength stainless steel metal cutting or stamping, which ensures that the fixings have sufficient strength and corrosion resistance, can adapt to the temperature and humidity differences in different areas of the reactor, and ensure the stability and reliability of the structure. The detector 3 is made of alloy and is made by cutting or stamping.

[0067] It is easy for those skilled in the art to understand that the above-mentioned advantageous methods can be freely combined and superimposed without conflict.

[0068] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A fixing device, characterized in that: Applied to the detector (3), the fixing device comprises: A wall fixing piece (1), the wall fixing piece (1) comprising a first end and a second end, the first end being used for being fixedly connected to a wall, and the second end being provided with a first plug-in portion; A detector fixing member (2), the detector fixing member (2) comprising a connecting end and a mounting end, the mounting end being used to mount the detector (3), the connecting end being provided with a second plug-in portion, the second plug-in portion being adapted to the first plug-in portion so that the detector fixing member (2) mounted with the detector (3) is connected to the wall fixing member (1).

2. A fixing device according to claim 1, characterized in that: The first plug-in portion or the second plug-in portion is provided with an insertion end, a limiting hole is provided on a groove wall arranged opposite to the insertion end, and a limiting screw (104) is arranged in the limiting hole.

3. A fixing device according to claim 1, characterized in that: The first end of the wall fixing piece (1) is provided with an adjustment hole, and a wall end connecting bolt passes through the adjustment hole to install the wall fixing piece (1) on the wall. The wall fixing piece (1) moves along the wall end connecting bolt by means of the adjustment hole, so that the wall fixing piece (1) moves to a preset height position.

4. A fixing device according to claim 1, characterized in that: The detector fixing member (2) comprises a detector end connecting plate (201) and a third connecting plate (203), wherein the detector end connecting plate (201) is used to connect to the detector (3), the third connecting plate (203) is connected to an end of the detector end connecting plate (201) that is not connected to the detector (3), and the second plug-in portion is arranged at an end of the third connecting plate (203) that is not connected to the detector end connecting plate (201).

5. A fixing device according to claim 4, characterized in that: The detector fixing member (2) further comprises an adapter plate (204), one end of the adapter plate (204) being connected to the detector end connecting plate (201), and the other end being connected to the third connecting plate (203), and the adapter plate (204) being rotated relative to the third connecting plate (203) so that the detector (3) is rotated to a preset angle position.

6. A fixing device according to claim 5, characterized in that: The detector fixing member (2) further comprises a power assembly (205), wherein the power assembly (205) is used to drive the adapter plate (204) to rotate.

7. A fixing device according to claim 6, characterized in that: The power assembly (205) includes a worm (20501) and a worm wheel (20502), wherein both ends of the worm (20501) are respectively connected to a bearing seat (20503), and the worm (20501) rotates relative to the bearing seat (20503). The bearing seat (20503) is arranged on the end surface of the third connecting plate (203), and the adapter plate (204) at least partially extends to the outside of the third connecting plate (203) so that the worm wheel (20502) is installed on the adapter plate (204), and the worm wheel (20502) is meshed with the worm (20501), and the worm (20501) drives the adapter plate (204) to rotate, so that the detector (3) rotates to a preset angle.

8. A fixing device according to claim 7, characterized in that: The power assembly (205) further comprises a handwheel, and one end of the worm (20501) at least partially extends out of the bearing seat (20503) so that the handwheel can be mounted on the worm (20501).

9. A fixing device according to claim 4, characterized in that: The surface of the detector end connecting plate (201) in contact with the detector (3) is adapted to the outer surface of the detector (3).

10. A fixing device according to claim 1, characterized in that: The detector fixing member (2) and the wall fixing member (1) are both provided with a hollow portion (4).

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