A hanger assembly and high temperature ionization chamber

Abstract

The application provides a suspension device assembly and a high-temperature ionization chamber. The suspension device assembly comprises a sleeve, a suspension device and at least one elastic positioning device. The sleeve is formed with a receiving cavity and an opening communicating with the receiving cavity, and at least part of the suspension device is arranged in the receiving cavity. The elastic positioning device is arranged between the sleeve and the suspension device. In the suspension device assembly, the suspension device and the sleeve can avoid shaking in the sleeve during coordinated movement, thereby avoiding friction and collision between the suspension device and the sleeve, and further reducing hard friction to damage the suspension device or a probe of the high-temperature ionization chamber and other components.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reactor in-core probe, and in particular to a suspension device assembly and a high-temperature ionization chamber. BACKGROUND

[0002] The high-temperature ionization chamber is one of in-core probes, which is used in a high-temperature and strong radiation environment in a reactor core to monitor the burnup of nuclear fuel assemblies and the neutron fluence rate, so as to control the insertion depth of the nuclear fuel assemblies in the reactor core. The suspension device is an important component of the high-temperature ionization chamber, which is used to support the probe, provide an insulation passage for the armored cable, shield neutrons and gamma rays, and the like.

[0003] The high-temperature ionization chamber in the related art includes a sleeve and a suspension device arranged in the sleeve. When the suspension device is placed in the sleeve, the suspension device will move up and down together with the sleeve. When detection is performed, the lifting mechanism moves the sleeve (containing the suspension device) to the inside of the reactor core in the reactor core hole for detection. Since the suspension device and the sleeve are generally long, for example, both are tens of meters long, the suspension device in the related art will shake in the sleeve during the cooperative movement of the suspension device and the sleeve, which will cause friction and collision between the suspension device and the sleeve. SUMMARY

[0004] Therefore, the embodiments of the present application provide a suspension device assembly and a high-temperature ionization chamber to solve the problem that the suspension device in the related art will shake in the sleeve during the cooperative movement of the suspension device and the sleeve, which will cause friction and collision between the suspension device and the sleeve.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application provide a suspension device assembly, which comprises:

[0006] A sleeve, which is formed with a receiving cavity and an opening in communication with the receiving cavity;

[0007] A suspension device, at least part of the structure of which is arranged in the receiving cavity;

[0008] At least one elastic positioning device, which is arranged between the sleeve and the suspension device.

[0009] In an embodiment, the number of the elastic positioning devices is multiple, and each of the elastic positioning devices is arranged along the circumference of the suspension device.

[0010] In an embodiment, the number of the elastic positioning devices is multiple, and each of the elastic positioning devices is arranged along the axis of the suspension device.

[0011] In one embodiment, the elastic positioning device is arranged on the suspension device, and the suspension device abuts against the side wall of the accommodating cavity through the elastic positioning device.

[0012] In one embodiment, the elastic positioning device comprises a housing, an elastic return member, and a ball. The housing is provided with an accommodating space, the elastic return member is arranged in the accommodating space, one end of the elastic return member is connected to the side wall of the accommodating space, and the other end is connected to the ball. The housing is connected to the suspension device, and the ball abuts against the side wall of the accommodating cavity under the action of the elastic return member.

[0013] In one embodiment, the accommodating space comprises a first subspace and a second subspace that are in communication with each other, the elastic return member comprises a first elastic return member, a second elastic return member, and a connecting member arranged between the first elastic return member and the second elastic return member. One end of the first elastic return member away from the second elastic return member is connected to the ball, and the first elastic return member is located in the first subspace in a natural state. One end of the second elastic return member away from the first elastic return member is connected to the side wall of the accommodating space, and the second elastic return member is located in the second subspace in a natural state.

[0014] In one embodiment, the stiffness coefficient of the second elastic return member is greater than the stiffness coefficient of the first elastic return member.

[0015] In one embodiment, the outer diameter of the second elastic return member is greater than the outer diameter of the first elastic return member.

[0016] In one embodiment, the side wall of the accommodating cavity forms a limiting groove, and the ball is arranged in the limiting groove.

[0017] In one embodiment, the side wall of the top of the accommodating cavity is formed with an internal thread, the suspension device is formed with an external thread corresponding to the internal thread, and the sleeve is threadedly connected to the suspension device.

[0018] In one embodiment, the suspension device assembly comprises a wheel mechanism, and the wheel mechanism is arranged at the bottom of the suspension device.

[0019] In one embodiment, the wheel mechanism comprises a plurality of universal rollers, and each universal roller is arranged at the bottom of the suspension device in a spaced manner.

[0020] The embodiment of the present application provides a high-temperature ionization chamber comprising the suspension device assembly described above.

[0021] The suspension device assembly provided by the embodiment of the application comprises a sleeve, a suspension device and at least one elastic positioning device, the sleeve is formed with a containing cavity and an opening communicating with the containing cavity, the suspension device is placed into the containing cavity through the opening, and the elastic positioning device is arranged between the sleeve and the suspension device, so that the suspension device and the sleeve can be abutted and positioned by the elastic positioning device during the process of placing the suspension device into the sleeve, the friction and collision between the sidewall of the suspension device and the sidewall of the containing cavity can be avoided, and the hard friction caused damage to the suspension device or the probe of the high-temperature ionization chamber and other components can be reduced. In addition, during the cooperative movement of the suspension device and the sleeve, the elastic positioning device arranged between the sleeve and the suspension device can avoid the shaking of the suspension device in the sleeve, so that the friction and collision between the suspension device and the sleeve can be avoided, and the hard friction caused damage to the suspension device or the probe of the high-temperature ionization chamber and other components can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic diagram of a suspension device assembly according to an embodiment of the application;

[0023] Figure 2 FIG. 2 is a structural schematic diagram of a suspension device in FIG. 1, wherein the bottom of the suspension device is provided with a probe; Figure 1

[0024] Figure 3 FIG. 3 is a structural schematic diagram of a sleeve in FIG. 1; Figure 1

[0025] Figure 4 FIG. 4 is a partial schematic diagram of the connection between the suspension device, the sleeve and the elastic positioning device in FIG. 1; Figure 1

[0026] Figure 5 FIG. 5 is a structural schematic diagram of an elastic positioning device in FIG. 1; Figure 1

[0027] Figure 6 FIG. 6 is a partial schematic diagram of the connection between the suspension device and the rotating mechanism in FIG. 1, wherein the bottom of the suspension device is provided with a probe. Figure 1

[0028] REFERENCE SIGNS

[0029] ​​​​​10, sleeve; 10a, accommodating cavity; 10b, opening; 10c, internal thread; 10d, limiting groove; 20, suspension device; 20a, external thread; 21, boss; 22, second base plate; 23, lifting lug; 30, elastic positioning device; 31, shell; 31a, accommodating space; 31b, first subspace; 31c, second subspace; 32, elastic reset member; 321, first elastic reset member; 322, second elastic reset member; 33, ball; 34, connecting piece; 40, wheel mechanism; 41, universal roller; 42, first base plate; 43, fixed shaft; 44, rotating disc; 100, suspension device assembly; 200, probe. DETAILED DESCRIPTION

[0030] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. Figure 1

[0031] The embodiments of the present application provide a high-temperature ionization chamber, please refer to Figure 1 The high-temperature ionization chamber includes the suspension device assembly 100 of the embodiments of the present application.

[0032] The high-temperature ionization chamber is a kind of in-pile probe, in the high-temperature, strong radiation environment in the reactor, for monitoring the fuel assembly burnup and neutron fluence rate in the reactor, etc., so as to control the insertion depth of nuclear fuel assembly in the reactor, etc.

[0033] In an embodiment, please refer to Figure 2 The high-temperature ionization chamber includes the probe 200, the suspension device 20 and the armored cable, etc.

[0034] The embodiments of the present application provide a suspension device assembly 100, please refer to Figures 1 to 5 The high-temperature ionization chamber includes the sleeve 10, the suspension device 20 and the elastic positioning device 30.

[0035] The suspension device 20 is an important part of the high-temperature ionization chamber, which is used to support the probe 200, provide an insulation passage for the armored cable, shield neutrons and gamma rays for the ionization chamber, etc.

[0036] Please refer to Figure 1 and Figure 2 ​The sleeve 10 is formed with a receiving cavity 10a and an opening 10b communicating with the receiving cavity 10a, the suspension device 20 is put into the receiving cavity 10a in the sleeve 10 from the opening 10b, the lifting mechanism of the high-temperature ionization chamber is matched with the sleeve 10 and used to drive the sleeve 10 to move, and the specific moving mode is not limited, for example, horizontal movement or lifting, and the like, at this time, the suspension device 20 in the receiving cavity 10a moves cooperatively with the sleeve 10.

[0037] It should be noted that the at least partial structure of the suspension device 20 is arranged in the receiving cavity 10a, which means that the suspension device 20 can be partially arranged in the receiving cavity 10a or entirely arranged in the receiving cavity 10a.

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 , the elastic positioning device 30 is arranged between the sleeve 10 and the suspension device 20, that is, the suspension device 20 and the sleeve 10 can be abutted and positioned through the elastic positioning device 30, in the process of putting the suspension device 20 into the sleeve 10, and in the process of cooperative movement of the suspension device 20 and the sleeve 10, friction and collision between the side wall of the suspension device 20 and the side wall of the receiving cavity 10a and shaking of the suspension device 20 in the sleeve 10 can be avoided.

[0039] The specific arrangement position of the elastic positioning device 30 is not limited here, for example, the elastic positioning device 30 can be arranged on the sleeve 10, the sleeve 10 is abutted with the suspension device 20 through the elastic positioning device 30, or the elastic positioning device 30 can be arranged on the suspension device 20, the suspension device 20 is abutted with the sleeve 10 through the elastic positioning device 30.

[0040] It should be noted that the suspension device assembly 100 includes at least one elastic positioning device 30, which means that the suspension device assembly 100 can include one elastic positioning device 30 or multiple elastic positioning devices 30, and it should be noted that in the embodiment of the application, multiple means two or more than two.

[0041] In an embodiment, the armored cable (not shown in the figure) is arranged in the suspension device 20 and arranged along the axial direction of the suspension device 20, one end of the armored cable extends to the outside of the reactor and electrically connected with the power supply, and the other end of the armored cable is electrically connected with the probe 200.

[0042] When the neutron detection is performed, the lifting mechanism of the high-temperature ionization chamber puts the sleeve 10 (with the suspension device 20 arranged therein) into the reactor core in the reactor body hole for detection, that is, the suspension device 20 and the sleeve 10 move cooperatively.

[0043] It should be noted that the specific shape of the sleeve 10 is not limited here, and the shape of the sleeve 10 includes but is not limited to a hollow cylindrical shape, a hollow elliptical cylindrical shape, or a polygonal shape with rounded corners, such as a rounded triangular shape, etc. In the embodiments of the present application, the sleeve 10 is taken as a hollow cylindrical shape for example.

[0044] It should be noted that the specific shape of the suspension device 20 is not limited here, and the shape of the suspension device 20 includes but is not limited to a hollow cylindrical shape, a hollow elliptical cylindrical shape, or a polygonal shape with rounded corners, such as a rounded triangular shape, etc. In the embodiments of the present application, the sleeve 10 is taken as a hollow cylindrical shape for example.

[0045] The high-temperature ionization chamber provided by the embodiments of the present application includes a sleeve 10, a suspension device 20, and at least one elastic positioning device 30. The sleeve 10 is formed with a receiving cavity 10a and an opening 10b communicating with the receiving cavity 10a. The suspension device 20 is put into the receiving cavity 10a through the opening 10b. The elastic positioning device 30 is arranged between the sleeve 10 and the suspension device 20. Thus, during the process of putting the suspension device 20 into the sleeve 10, the suspension device 20 and the sleeve 10 can be abutted and positioned by the elastic positioning device 30. The friction and collision between the side wall of the suspension device 20 and the side wall of the receiving cavity 10a can be avoided. That is, the hard friction and collision between the suspension device 20 and the sleeve 10 during the lifting process can be buffered. Thus, the damage of the suspension device 20 or other parts of the high-temperature ionization chamber, such as the probe 200, caused by the hard friction can be reduced. In addition, during the cooperative movement of the suspension device 20 and the sleeve 10, the suspension device 20 can be prevented from shaking in the sleeve 10 due to the arrangement of the elastic positioning device 30 between the sleeve 10 and the suspension device 20. Thus, the friction and collision between the suspension device 20 and the sleeve 10 can be avoided. Thus, the damage of the suspension device 20 or other parts of the high-temperature ionization chamber, such as the probe 200, caused by the hard friction can be reduced.

[0046] It should be noted that the specific connection structure of the sleeve 10 and the suspension device 20 is not limited here. For example, in an embodiment, referring to Figures 1 to 3 , the side wall of the top of the receiving cavity 10a is formed with an internal thread 10c, and the suspension device 20 is formed with an external thread 20a corresponding to the internal thread 10c. The sleeve 10 and the suspension device 20 are threadedly connected. That is, after the suspension device 20 is put into the receiving cavity 10a of the sleeve 10, the internal thread 10c of the side wall of the top of the receiving cavity 10a is matched with the external thread 20a of the suspension device 20 by controlling the rotation of the suspension device 20 relative to the sleeve 10. Thus, the thread connection of the sleeve 10 and the suspension device 20 is realized. In this way, on the one hand, the firmness of the suspension device assembly 100 is improved. On the other hand, the sleeve 10 and the suspension device 20 are convenient to disassemble and assemble.

[0047] In one embodiment, referring to Figure 1 and Figure 2 , the top of the suspension device 20 extends radially outward to form a boss 21, and the outer surface of the boss 21 is formed with external threads 20a, that is, the suspension device 20 is connected to the sleeve 10 through the external threads 20a on the boss 21, and there is a gap between the end of the boss 21 close to the bottom and the side wall of the accommodating cavity 10a, which facilitates the assembly of the suspension device 20 into the sleeve 10. In this way, when the suspension device 20 is placed into the sleeve 10, the suspension device 20 will move up and down together with the sleeve 10. Since the suspension device 20 and the sleeve 10 are both tens of meters long, during the up-and-down movement, the outer side wall of the suspension device 20 and the inner side wall of the sleeve 10 will sway, rub and collide. By providing the elastic positioning device 30 in the gap between the suspension device 20 and the sleeve 10, the suspension device 20 and the sleeve 10 are abutted and positioned by the elastic positioning device 30, which can avoid the swaying, rubbing and collision between the outer side wall of the suspension device 20 and the inner side wall of the sleeve 10.

[0048] In one embodiment, the number of elastic positioning devices 30 is multiple. The suspension device 20 and the sleeve 10 can be abutted and positioned by the elastic positioning device 30, that is, by providing the elastic positioning device 30 to avoid the rubbing and collision between the side wall of the suspension device 20 and the side wall of the accommodating cavity 10a and the swaying of the suspension device 20 in the sleeve 10. It can be understood that by providing multiple elastic positioning devices 30, not only the stability between the suspension device 20 and the sleeve 10 is further improved, but also the situation that the suspension device 20 cannot be positioned due to the failure or damage of any elastic positioning device 30 is avoided.

[0049] In one embodiment, referring to Figure 1 and Figure 2 , the elastic positioning devices 30 are arranged at intervals in the circumferential direction of the suspension device 20. By arranging multiple elastic positioning devices 30 at intervals in the circumferential direction of the suspension device 20, the center line of the suspension device 20 is made to coincide with the center line of the sleeve 10 as much as possible, so that the rubbing and collision between the side wall of the suspension device 20 and the side wall of the accommodating cavity 10a can be avoided.

[0050] In one embodiment, referring to Figure 1 and Figure 2The elastic positioning devices 30 are arranged at intervals along the axial direction of the suspension device 20. Since the lengths of the suspension device 20 and the sleeve 10 are both relatively long, in order to buffer the hard friction and collision between the suspension device 20 and the sleeve 10 during movement, the elastic positioning devices 30 are arranged at intervals along the axial direction of the suspension device 20, for example, a plurality of elastic positioning devices 30 are arranged at intervals at the upper, middle and lower portions of the axial direction of the suspension device 20.

[0051] In other embodiments, the number of elastic positioning devices 30 is one, and the elastic positioning device 30 is arranged around the sleeve 10 and the suspension device 20.

[0052] In an embodiment, referring to Figure 2 and Figure 4 , the elastic positioning device 30 is arranged on the suspension device 20, and the suspension device 20 abuts against the side wall of the accommodating cavity 10a through the elastic positioning device 30.

[0053] In an embodiment, the elastic positioning device 30 is arranged on the suspension device 20, and the suspension device 20 abuts against the side wall of the accommodating cavity 10a through the elastic positioning device 30. That is, by arranging the elastic positioning device 30 on the suspension device 20, the suspension device 20 abuts against the sleeve 10 through the elastic positioning device 30, and the suspension device 20 is positioned through the elastic positioning device 30, which can avoid the outer side wall of the suspension device 20 and the inner side wall of the sleeve 10 from shaking, rubbing and colliding.

[0054] It should be noted that the specific manner in which the elastic positioning device 30 is arranged on the suspension device 20 is not limited herein, and exemplary embodiments include Figure 3 and Figure 4 , in which the outer side wall of the suspension device 20 forms a groove, the elastic positioning device 30 is arranged in the groove, and part of the structure is exposed outside the outer side wall of the suspension device 20, for abutting against the inner side wall of the sleeve 10.

[0055] In other embodiments, the elastic positioning device 30 is arranged on the sleeve 10, and the sleeve 10 abuts against the suspension device 20 through the elastic positioning device 30.

[0056] The specific structure of the elastic positioning device 30 is not limited herein, and exemplary embodiments include Figure 4 and Figure 5The elastic positioning device 30 comprises a housing 31, an elastic reset member 32 and a ball 33. The housing 31 is provided with a receiving space 31a, the elastic reset member 32 is arranged in the receiving space 31a, one end of the elastic reset member 32 is connected with the side wall of the receiving space 31a, and the other end is connected with the ball 33. The housing 31 is connected with the suspension device 20, and the ball 33 is in abutment with the side wall of the receiving cavity 10a under the action of the elastic reset member 32. That is, the housing 31 is arranged in the groove formed by the outer side wall of the suspension device 20, and the elastic reset member 32 is arranged in the receiving space 31a and performs expansion and contraction movement in the receiving space 31a. In this way, when the suspension device 20 is assembled into the receiving cavity 10a of the sleeve 10, the suspension device 20 is in abutment with the sleeve 10 through the ball 33, that is, the side wall of the receiving cavity 10a extrudes the ball 33, the ball 33 compresses the elastic reset member 32 to make the elastic reset member 32 elastically deform, and the elastic reset member 32 also gives the ball 33 a force to restore the elastic deformation, that is, the ball 33 is in abutment with the side wall of the receiving cavity 10a under the action of the elastic reset member 32, so as to realize the positioning of the elastic positioning device 30 to the suspension device 20. It should be noted that the positioning of the elastic reset member 32 to the suspension device 20 refers to the positioning in the radial direction, that is, it is beneficial to make the center line of the suspension device 20 coincide with the center line of the sleeve 10 as much as possible.

[0057] In an embodiment, referring to Figure 5The accommodating space 31a comprises a first subspace 31b and a second subspace 31c which are in communication with each other, the elastic return member 32 comprises a first elastic return member 321, a second elastic return member 322 and a connecting member 34 arranged between the first elastic return member 321 and the second elastic return member 322, one end of the first elastic return member 321 away from the second elastic return member 322 is connected with the ball 33, and the first elastic return member 321 is located in the first subspace 31b in a natural state, one end of the second elastic return member 322 away from the first elastic return member 321 is connected with the side wall of the accommodating space 31a, and the second elastic return member 322 is located in the second subspace 31c in a natural state. That is, the elastic return member 32 in this embodiment comprises the first elastic return member 321 and the second elastic return member 322 connected in series, the first elastic return member 321 and the second elastic return member 322 are connected in series through the connecting member 34, and the elastic positioning device 30 is provided with the first subspace 31b and the second subspace 31c which are in communication with each other, when the elastic return member 32 is in a natural state, the first elastic return member 321 is located in the first subspace 31b, and the second elastic return member 322 is located in the second subspace 31c. Since the temperature in the use environment of the suspension device assembly 100 is high, it is not conducive to the service life of the elastic return member 32, that is, there is a possibility that the elastic return member 32 will fail, therefore, by arranging the first elastic return member 321 and the second elastic return member 322 in series, it can be avoided that the failure or damage of any one of the elastic return members 32 causes the suspension device 20 to be unable to be positioned, that is, even if any one of the first elastic return member 321 and the second elastic return member 322 fails, the other elastic return member 32 can still play a role to make the ball 33 abut against the side wall of the accommodating cavity 10a, so as to realize the positioning of the suspension device 20, thereby improving the reliability of the elastic positioning device 30.

[0058] It should be noted that the specific arrangement of the connecting member 34 is not limited here, as long as it is arranged between the first elastic return member 321 and the second elastic return member 322 to connect the first elastic return member 321 and the second elastic return member 322 in series, and exemplarily, in an embodiment, please refer to Figure 5The connecting piece 34 is connected with the first elastic return piece 321, for example, by welding, etc., so as to improve the stability between the connecting piece 34 and the first elastic return piece 321, thereby improving the stability of the elastic positioning device 30. In other embodiments, the connecting piece 34 is connected with the second elastic return piece 322, for example, by welding, etc. In still other embodiments, the connecting piece 34 can also be neither connected with the first elastic return piece 321 nor connected with the second elastic return piece 322, and the connecting piece 34 is clamped between the first elastic return piece 321 and the second elastic return piece 322 by the elastic force between the first elastic return piece 321 and the second elastic return piece 322. In this way, the step of welding between the connecting piece 34 and the first elastic return piece 321 or the second elastic return piece 322 is reduced, thereby improving the assembly efficiency, and it is also beneficial to replace the failed first elastic return piece 321 or the second elastic return piece 322, facilitating maintenance, and the elastic return piece 32 without damage and the connecting piece 34 can continue to be used, thereby saving costs.

[0059] In other embodiments, the elastic return piece 32 can include a plurality of series-connected sub-elastic return pieces, and can also include a plurality of parallel-connected sub-elastic return pieces, so as to improve the reliability and stiffness coefficient of the elastic return piece 32.

[0060] In an embodiment, the stiffness coefficient of the second elastic return piece 322 is greater than the stiffness coefficient of the first elastic return piece 321. The stiffness coefficient (k) describes the size of the elastic force generated per unit deformation. The greater the stiffness coefficient, the greater the force required per unit length of deformation. Since the first elastic return piece 321 and the second elastic return piece 322 are connected in series, the forces borne by the first elastic return piece 321 and the second elastic return piece 322 are the same. By setting the stiffness coefficient of the second elastic return piece 322 to be greater than the stiffness coefficient of the first elastic return piece 321, on the one hand, it is beneficial to compress the first elastic return piece 321 when the side wall of the accommodating cavity 10a extrudes the ball 33, thereby facilitating the assembly of the suspension device 20 into the sleeve 10. On the other hand, even if the first elastic return piece 321 fails, the second elastic return piece 322 can still be compressed and recover the elastic deformation to make the ball 33 abut against the side wall of the accommodating cavity 10a. In this way, the reliability of the elastic positioning device 30 is improved.

[0061] In an embodiment, the outer diameter of the second elastic return piece 322 is greater than the outer diameter of the first elastic return piece 321. Under the same other conditions, the greater the outer diameter of the elastic return piece 32, the greater the stiffness coefficient. Therefore, the outer diameter of the second elastic return piece 322 is greater than the outer diameter of the first elastic return piece 321, that is, the stiffness coefficient of the second elastic return piece 322 is greater than the stiffness coefficient of the first elastic return piece 321.

[0062] In an embodiment, please refer to Figure 4 and Figure 5The side wall of the accommodating cavity 10a forms a limiting groove 10d, and the ball 33 is arranged in the limiting groove 10d. When the suspension device 20 and the sleeve 10 are assembled, the suspension device 20 is arranged in the accommodating cavity 10a of the sleeve 10, and then the sleeve 10 is rotated relative to the suspension device 20, so that the internal thread 10c at the top of the side wall of the accommodating cavity 10a is matched with the external thread 20a of the suspension device 20, thereby realizing the threaded connection between the sleeve 10 and the suspension device 20. In addition, the limiting groove 10d is formed in the side wall of the accommodating cavity 10a, so that when the suspension device 20 is assembled in place, the ball 33 of the elastic positioning device 30 is arranged in the limiting groove 10d. In this way, on the one hand, the ball 33 is in abutment with the side wall of the accommodating cavity 10a, thereby positioning the suspension device 20 in the radial direction; on the other hand, the limiting groove 10d limits the axial direction of the ball 33, that is, the axial direction of the suspension device 20, thereby preventing the suspension device 20 from being assembled out of place or being inserted too deeply into the accommodating groove, so as to prevent the probe 200 at the bottom of the suspension device 20 from being damaged. In addition, when the ball 33 is assembled into the limiting groove 10d, a sound is generated, thereby reminding the operator that the assembly is in place, thereby improving the assembly efficiency and preventing the assembly from being out of place.

[0063] In an embodiment, please refer to Figure 1 、 Figure 2 and Figure 6The high-temperature ionization chamber includes a wheel mechanism 40, which is located at the bottom of the suspension device 20. Thus, when assembling the suspension device 20 and the sleeve 10, after the suspension device 20 is placed into the receiving cavity 10a of the sleeve 10, the bottom of the suspension device 20 will not directly collide with the bottom wall of the receiving cavity 10a. The wheel mechanism 40 acts as a buffer, protecting the components located at the bottom of the suspension device 20. This is especially beneficial when the probe 200 is located at the bottom of the suspension device 20, providing better protection for the probe 200's in-pile detection. Furthermore, since both the suspension device 20 and the sleeve 10 are relatively long, the bottom of the suspension device 20 may shift after being assembled into the receiving cavity 10a. Specifically, the center of the bottom of the suspension device 20 may be offset from the center of the bottom of the receiving cavity 10a. By providing the wheel mechanism 40 at the bottom of the suspension device 20, it is easier to adjust the suspension device 20, allowing for better and more efficient assembly of the suspension device 20 with the sleeve 10. Furthermore, by providing a wheel mechanism 40 at the bottom of the suspension device 20, for example, when rotating the suspension device 20 to make the suspension device 20 threadedly connected to the sleeve 10, the sliding friction between the suspension device 20 and the sleeve 10 can be converted into rolling friction between the wheel mechanism 40 and the sleeve 10. This reduces frictional resistance and improves assembly convenience, while also preventing the bottom of the suspension device 20 from rubbing against the sleeve 10, which could damage the bottom of the suspension device 20 or the probe 200 at the bottom of the suspension device 20.

[0064] It should be noted that the specific structure of the wheel mechanism 40 is not limited here. For example, in one embodiment, please refer to [reference needed]. Figure 1 , Figure 2 and Figure 6 The wheel mechanism 40 includes multiple omnidirectional rollers 41, which are spaced apart at the bottom of the suspension device 20. This improves the flexibility of the suspension device 20 assembly, and the multiple omnidirectional rollers 41 improve the reliability of the wheel mechanism 40, preventing the wheel mechanism 40 from failing to rotate due to the failure of any one of the omnidirectional rollers 41.

[0065] Specifically, please refer to Figure 1 , Figure 2 and Figure 6 The wheel mechanism 40 includes a first chassis 42, a fixed shaft 43, and a rotating disk 44. The suspension device 20 includes a second chassis 22. The first chassis 42 is connected to the second chassis 22. The connection method is not limited here, including but not limited to welding, riveting, or fastening. One end of the fixed shaft 43 is connected to the chassis, and the other end is rotatably connected to the rotating disk 44. The universal roller 41 is set on the rotating disk 44. The rotating disk 44 drives the universal roller 41 to rotate by rotating.

[0066] In one embodiment, referring to Figure 1 and Figure 2 The suspension device 20 includes a lifting lug 23, which is located outside the accommodating cavity 10a, and through which the suspension device 20 is assembled into the accommodating cavity 10a, for example, the suspension device 20 can be moved or rotated through the lifting lug 23.

[0067] In the description of the present application, the description of the terms "in one embodiment", "in some embodiments", "in other embodiments", or "exemplary" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the exemplary description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the skilled person in the art can combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0068] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application is included in the protection scope of the present application.

Claims

1. A suspension device assembly, characterized in that, include: A sleeve (10) having a receiving cavity (10a) and an opening (10b) communicating with the receiving cavity (10a); A suspension device (20), at least a portion of which is disposed in the receiving cavity (10a); At least one elastic positioning device (30) is disposed between the sleeve (10) and the suspension device (20); A wheel mechanism (40) is provided at the bottom of the suspension device (20). The wheel mechanism (40) includes a first chassis (42), a fixed shaft (43), a rotating disk (44), and a plurality of universal rollers (41). Each universal roller (41) is spaced apart at the bottom of the suspension device (20). The suspension device (20) includes a second chassis (22). The first chassis (42) is connected to the second chassis (22). One end of the fixed shaft (43) is connected to the first chassis (42), and the other end is rotatably connected to the rotating disk (44). The universal rollers (41) are provided on the rotating disk (44). The rotating disk (44) drives the universal rollers (41) to rotate by rotating. The side wall at the top of the receiving cavity (10a) is formed with an internal thread (10c), the suspension device (20) is formed with an external thread (20a) corresponding to the internal thread (10c), and the sleeve (10) is threadedly connected to the suspension device (20).

2. The suspension device assembly according to claim 1, characterized in that, The elastic positioning device (30) is disposed on the suspension device (20), and the suspension device (20) abuts against the side wall of the receiving cavity (10a) through the elastic positioning device (30).

3. The suspension device assembly according to claim 2, characterized in that, The elastic positioning device (30) includes a housing (31), an elastic reset member (32), and a ball (33). The housing (31) is provided with a receiving space (31a). The elastic reset member (32) is disposed in the receiving space (31a). One end of the elastic reset member (32) is connected to the side wall of the receiving space (31a), and the other end is connected to the ball (33). The housing (31) is connected to the suspension device (20). The ball (33) abuts against the side wall of the receiving cavity (10a) under the action of the elastic reset member (32).

4. The suspension device assembly according to claim 3, characterized in that, The accommodating space (31a) includes a first subspace (31b) and a second subspace (31c) that are interconnected. The elastic reset member (32) includes a first elastic reset member (321), a second elastic reset member (322), and a connector (34) disposed between the first elastic reset member (321) and the second elastic reset member (322). The end of the first elastic reset member (321) away from the second elastic reset member (322) is connected to the ball (33), and the first elastic reset member (321) is located in the first subspace (31b) in its natural state. The end of the second elastic reset member (322) away from the first elastic reset member (321) is connected to the side wall of the accommodating space (31a), and the second elastic reset member (322) is located in the second subspace (31c) in its natural state.

5. The suspension device assembly according to claim 4, characterized in that, The stiffness coefficient of the second elastic reset member (322) is greater than that of the first elastic reset member (321); and / or, The outer diameter of the second elastic reset member (322) is larger than the outer diameter of the first elastic reset member (321).

6. The suspension device assembly according to claim 3, characterized in that, The sidewall of the receiving cavity (10a) forms a limiting groove (10d), and the ball (33) is disposed in the limiting groove (10d).

7. The suspension device assembly according to claim 1, characterized in that, The number of elastic positioning devices (30) is multiple, and each elastic positioning device (30) is arranged at circumferential intervals along the suspension device (20).

8. The suspension device assembly according to claim 1, characterized in that, The number of elastic positioning devices (30) is multiple, and each elastic positioning device (30) is arranged at intervals along the axial direction of the suspension device (20).

9. A high-temperature ionization chamber, characterized in that, Includes the suspension device assembly as described in any one of claims 1-8.

Images