Retractable Probe Rod and Method for Restoring the Deformation of the Helical Transmission Line in the Retractable Probe Rod

Abstract

The present invention discloses a telescopic probe and a method for restoring the deformation of a spiral transmission line in the telescopic probe, belonging to the field of nuclear pollution detection. The telescopic probe disclosed in the present invention comprises a detector, a spiral transmission line and a telescopic rod made of carbon fiber. The detector comprises a detection end and a host end, the detection end is arranged at one end of the telescopic rod, the host end is arranged at the other end of the telescopic rod, and the spiral transmission line is located inside the telescopic rod; a first adapter and a second adapter that cooperate with each other and are detachably connected are arranged between the spiral transmission line and the detection end or between the spiral transmission line and the host end. During use, the telescopic probe of the present invention can continuously restore the initial state of the spiral transmission line by disassembling the first adapter and the second adapter, thereby avoiding breakage of the spiral transmission line and avoiding the spiral transmission line from reaching a blocking limit, ensuring the normal use of the telescopic probe, reducing the failure rate and increasing the service life.

Description

Technical Field

[0001] The invention belongs to the field of nuclear pollution detection, and in particular relates to a telescopic probe and a method for recovering the deformation of a spiral transmission line in the telescopic probe. Background Art

[0002] At nuclear power plants and other radiation-prone areas, a device has emerged to transport probes to hazardous areas via a telescopic rod, enabling surveyors to reach these hard-to-reach or dangerous areas. This device, called a telescopic rod, features a probe at the top of the rod and a main unit behind it. Extending the rod a certain distance allows the probe to reach the hazardous area. Telescopic rods are typically metal or carbon fiber, and the conductors are typically either spiral or straight. Straight conductors require a thin steel or nylon wire attachment. To protect the conductor from breakage, a capstan is used to retract the conductor and attached wires back into the stranded core. The advantage of straight conductors is that they can use metal components, which can be used as guide grooves. The rod does not rotate axially, and straight conductors avoid the risk of stranding. However, a single capstan is prone to clogging and wire jams. Telescopic rods using spiral cables avoid these issues.

[0003] The diameter of the telescopic rod using the spiral transmission line is relatively thick. Considering the weight, the telescopic rod is generally made of carbon fiber rod. Due to cost reasons, the carbon fiber rod cannot be made into a guide groove telescopic rod and can only be made into a round tube form. The disadvantage of the round tube form is that when telescoping, each individual section will have axial displacement when telescoping, and the displacement amount and direction are not fixed. After a long period of time, the axial displacement will rotate many times in one direction, and the spiral transmission line will break or the spiral transmission line will reach the blocking limit, making it difficult to retract the telescopic rod. Summary of the Invention

[0004] The purpose of the present invention is to provide a telescopic probe and a method for restoring the deformation of a spiral transmission line in the telescopic probe, so as to solve the problem of axial rotation of the telescopic rod itself during use, avoid breakage of the spiral transmission line, avoid the spiral transmission line reaching the blocking limit, and ensure the normal use of the telescopic probe.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A telescopic probe, comprising a detector, a spiral transmission line, and a telescopic rod made of carbon fiber, wherein the detector comprises a detection end and a host end, wherein the detection end is arranged at one end of the telescopic rod, the host end is arranged at the other end of the telescopic rod, and the spiral transmission line is located inside the telescopic rod;

[0007] A first adapter and a second adapter that cooperate with each other and are detachably connected are provided between the spiral transmission line and the detection end, the first adapter being rotatably connected to one end of the telescopic rod, and the second adapter being connected to the detection end; or

[0008] A first adapter and a second adapter that cooperate with each other and are detachably connected are provided between the spiral transmission line and the host end, the first adapter being rotatably connected to one end of the telescopic rod, and the second adapter being connected to the host end; and

[0009] The spiral transmission line is connected to the first adapter, and the detection end is electrically connected to the host end through the spiral transmission line, the first adapter and the second adapter.

[0010] The telescopic rod comprises a cylindrical inner rod body, a cylindrical middle rod body and a cylindrical outer rod body which are sleeved together in sequence. The detection end is connected to the cylindrical inner rod body, and the host end is connected to the cylindrical outer rod body.

[0011] The rotation direction of the first adapter is the same as the rotatable direction of the cylindrical inner rod body or the cylindrical outer rod body.

[0012] The first adapter has a connecting seat on the outside, a through hole in the middle of the connecting seat, a bearing is provided in the through hole, the first adapter is rotatably connected to the connecting seat through the bearing, one end of the connecting seat is connected to the telescopic rod, and the other end of the connecting seat is connected to the detection end or the host end.

[0013] The second adapter is fixed on the detection end or the host end.

[0014] The first adapter has a first marking ring and a first magnetic portion on the outside, the first magnetic portion is fixed on the first marking ring, and the first adapter is located on the inner ring of the first marking ring;

[0015] A second magnetic portion is fixedly provided on the first adapter;

[0016] When the first marker ring is rotated by an external force and the second magnetic part is brought close to the magnetic attraction range of the first magnetic part, the first adapter rotates synchronously with the first marker ring due to the attraction between the first magnetic part and the second magnetic part.

[0017] The first marking ring is rotatably connected to the connecting seat, has two first magnetic parts, has two second magnetic parts, and a mark is set on the top of the first marking ring;

[0018] Taking the line connecting the rotation center of the marker to the first marker ring as the center line, the two first magnetic parts are symmetrically fixed on both sides of the first marker ring along the center line, and the two second magnetic parts are symmetrically fixed on both sides of the first adapter.

[0019] The first adapter is an aviation female plug, and the second adapter is an aviation male plug.

[0020] Compared with the prior art, in the telescopic probe provided by the present invention, a detachable intermediate connecting piece, namely a first adapter and a second adapter, is added between the spiral transmission line and the detection end or the spiral transmission line and the host end. When the first adapter and the second adapter are disassembled, since the first adapter can rotate relative to the telescopic rod, the first adapter can release the rotational external force on the spiral transmission line through its own rotation, so that the spiral transmission line is restored to its initial state. After the first adapter and the second adapter are subsequently reinstalled, the transmission function of the spiral transmission line can be restored so that the detection end and the host end of the detector are restored to connection, thereby restoring the use of the product. During use, the telescopic probe of the present invention can continuously restore the initial state of the spiral transmission line by disassembling the first adapter and the second adapter, thereby avoiding breakage of the spiral transmission line and preventing the spiral transmission line from reaching the blocking limit, ensuring the normal use of the telescopic probe, reducing the failure rate, and increasing the service life.

[0021] The present invention also provides a method for restoring the deformation of a spiral transmission line in a telescopic probe, comprising installing an adapter that can rotate relative to the telescopic rod at one end of the telescopic rod, and electrically connecting one end of the spiral transmission line located inside the telescopic rod to the adapter;

[0022] Fix the detection end of the detector and the host end of the detector to the two ends of the telescopic rod respectively, electrically connect one end of the spiral transmission line to the detector through the adapter, and electrically connect the other end of the spiral transmission line to the host end;

[0023] After using the detector, remove the connection between the detection end and the adapter, restore the spiral transmission line to a free state, and then reinstall the detection end and the adapter.

[0024] Compared with the prior art, the beneficial effects of the method for restoring the deformation of the spiral transmission line in the telescopic probe provided by the present invention are the same as the beneficial effects of the telescopic probe described in the above technical solution, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the overall structure of the telescopic probe of the present invention;

[0026] Figure 2 A cross-sectional view of the overall structure of another embodiment of the telescopic probe of the present invention;

[0027] Figure 3 for Figure 2 Schematic diagram of the cross section at point A;

[0028] Figure 4 for Figure 3 A schematic diagram of another working state of the first marking ring;

[0029] Figure 5 This is a flow chart of the method for restoring the deformation of a spiral transmission line in a telescopic probe according to the present invention.

[0030] Figure numerals: 1. detection end; 2. second adapter; 3. bearing retaining ring; 4. bearing; 5. connecting seat; 6. first adapter; 7. telescopic rod; 8. spiral transmission line; 9. first marking ring; 91. first magnetic part; 92. second magnetic part; 93. mark. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain the present invention rather than to limit it.

[0033] Please refer to Figure 1 , which shows a schematic diagram of the overall structure of the telescopic probe of the present invention, the telescopic probe includes a detector, a spiral transmission line 8 and a telescopic rod 7 made of carbon fiber. The detector includes a detection end 1 and a host end. The detection end 1 is arranged at one end of the telescopic rod 7, the host end is arranged at the other end of the telescopic rod 7, and the spiral transmission line 8 is located inside the telescopic rod 7. The telescopic rod 7 includes a cylindrical inner rod body, a cylindrical intermediate rod body and a cylindrical outer rod body which are sequentially sleeved together. The detection end 1 is connected to the cylindrical inner rod body, and the host end is connected to the cylindrical outer rod body. The relative rotation of the cylindrical inner rod body and the cylindrical outer rod body is the fundamental reason for the accumulated torsion of the spiral transmission line 8. There can be multiple cylindrical intermediate rod bodies, and the more there are, the longer the telescopic rod 7 can be telescoped. The telescopic rod 7 can choose the brand: Tianshida, item number t-3010. Brand: Xu Hang, product model XH-SJZ.

[0034] The detector's detection end 1 is primarily used to receive nuclear contamination radiation information from the external environment and transmit it to the detector's host computer via a spiral transmission line 8 for storage and processing. The host computer processes the data and provides it to staff in the form of image data for review. The telescopic rod 7 can be extended and retracted to increase the relative distance between the detection end 1 and the host computer. When staff are located at the host computer, the extension of the telescopic rod 7 allows the detector to enter the danger zone, while staff can monitor the danger zone from a distance. The detection end 1 transmits the measured data to the host computer via the spiral transmission line 8, which can extend as the telescopic rod 7 extends during information transmission.

[0035] To address the axial displacement of each section of the tubular telescopic rod 7 during extension and retraction, a first adapter 6 and a second adapter 2 are provided between the spiral transmission line 8 and the detector end 1, or between the spiral transmission line 8 and the host end. The detector end 1 is electrically connected to the host end via the spiral transmission line 8, the first adapter 6, and the second adapter 2. The first adapter 6 and the second adapter 2 perform the switching function.

[0036] The addition of the two detachable intermediate components, the first adapter 6 and the second adapter 2, is to release the torque accumulated by the rotation of the spiral transmission line 8. The above-mentioned torque accumulation is caused by the axial rotation of the telescopic rod 7 during use, which drives the spiral transmission line 8 to rotate together.

[0037] The inventors discovered that in the prior art, the design of other manufacturers is to directly fix the detection end 1 and the host end at the two ends of the telescopic rod 7. When the spiral transmission line 8 is connected, it is directly connected to the detection end 1 and the host end. This is equivalent to the spiral transmission line 8 being directly fixedly connected to the two ends of the telescopic rod 7. When the telescopic rod 7 produces axial rotation, the torque will directly act on the spiral transmission line 8.

[0038] In order to release the torsion, the present invention has a first adapter 6 connected to the spiral transmission line 8 that is rotationally connected to one end of the telescopic rod 7. Since the spiral transmission line 8 itself is in a spiral state, the spiral transmission line 8 is equivalent to a torsion spring, which has the property of restoring its own initial state. When the first adapter 6 and the second adapter 2 are in a disassembled state with respect to each other, and the first adapter 6 is rotationally connected to the telescopic rod 7, due to the reduction of friction, the spiral transmission line 8 will release the torque accumulated by itself, driving the first adapter 6 to rotate and release its own torque. After releasing the torsion of the spiral transmission line 8, it is only necessary to reconnect the first adapter 6 and the second adapter 2 to restore the signal transmission between the detection end 1 and the host end, so that the detector can return to the working state.

[0039] When installing the first adapter 6, the rotation direction of the first adapter 6 is the same as the rotation direction of the cylindrical inner rod body or the cylindrical outer rod body. In this way, it will be easier for the spiral transmission line 8 to release the torque. During installation, try to make the rotation axis of the first adapter 6 and the rotation axis of the cylindrical inner rod body or the cylindrical outer rod body parallel. Preferably, the rotation axis of the first adapter 6 and the rotation axis of the cylindrical inner rod body or the cylindrical outer rod body coincide. In order to reduce the relative friction between the first adapter 6 and the cylindrical inner rod body or the cylindrical outer rod body, the rotational connection between the first adapter 6 and the cylindrical inner rod body or the cylindrical outer rod body can adopt a bearing 4, and the bearing 4 is clamped in the connecting seat 5 through the bearing retaining ring 3.

[0040] When installing the first adapter 6, a connecting base 5 can be installed outside the first adapter 6. The connecting base 5 has a through hole in the middle, and a bearing 4 is disposed in the through hole. The first adapter 6 is rotatably connected to the connecting base 5 via the bearing 4. One end of the connecting base 5 is connected to the telescopic rod 7, and the other end of the connecting base 5 is connected to the detection end 1 or the host end. The presence of this through hole ensures that the spiral transmission line 8 can electrically connect the external detection end or the host end.

[0041] The connection base 5 facilitates assembly between the detector and the telescopic rod 7. During production, the first adapter 6 and bearing 4 can be integrated into the connection base 5. The telescopic rod 7 is an off-the-shelf product. A mounting hole is provided at one end of the connection base 5, which mates with one end of the telescopic rod 7 for securement, expediting production.

[0042] When installing the second adapter 2, secure it to the detector end 1 or the host end. This facilitates the removal of the first adapter 6 and the second adapter 2. For example, the first adapter 6 may be a female aviation plug, and the second adapter 2 may be a male aviation plug. Another example may be the first adapter 6 being a USB port, and the second adapter 2 being a USB plug. To remove the first adapter 6 and the second adapter 2, the user can simply grab the detector end 1 or the host end and unplug them, eliminating the need to use tools to remove the first adapter 6 and the second adapter 2 separately.

[0043] like Figure 1 As shown, when not in use, the detection end 1 can be disassembled. The spiral transmission line 8 and the first adapter 6 are not constrained by external forces, and the spiral transmission line 8 releases its own torque and returns to a free state.

[0044] When in use, simply plug the first adapter 6 and the second adapter 2 together, and the detection end 1 and the telescopic rod 7 can be detachably fixed together, or the detection end 1 can be detachably fixed to the connecting base 5. Then, the telescopic rod 7 is extended, and the detection end 1 is used to detect the target area. After the detection is completed, the detection end 1 can be removed again, and the connection between the first adapter 6 and the second adapter 2 can be removed. The spiral transmission line 8 releases its own torque again and returns to a free state.

[0045] In summary, in the telescopic probe provided by the present invention, a detachable intermediate connecting piece, namely a first adapter and a second adapter, is added between the spiral transmission line and the detection end or the spiral transmission line and the host end. When the first adapter and the second adapter are disassembled, since the first adapter can rotate relative to the telescopic rod, the first adapter can release the rotational external force on the spiral transmission line by rotating, so that the spiral transmission line is restored to its initial state. After reinstalling the first adapter and the second adapter, the transmission function of the spiral transmission line is restored so that the detection end and the host end of the detector are restored to connection and restored to use. During use, the telescopic probe of the present invention can continuously restore the initial state of the spiral transmission line by disassembling the first adapter and the second adapter, thereby avoiding breakage of the spiral transmission line and preventing the spiral transmission line from reaching the blocking limit, ensuring the normal use of the telescopic probe, reducing the failure rate, and increasing the service life.

[0046] For further information, please refer to Figure 2 、 Figure 3 and Figure 4 , which illustrates another embodiment of the telescopic probe of the present invention, wherein the first adapter 6 has a first marking ring 9 and a first magnetic portion 91 on the outside, the first magnetic portion 91 is fixed on the first marking ring 9, and the first adapter 6 is located on the inner ring of the first marking ring 9;

[0047] The first adapter 6 is fixedly provided with a second magnetic portion 92;

[0048] When the first marker ring 9 is rotated by an external force and the second magnetic portion 92 approaches the magnetic attraction range of the first magnetic portion 91, the first adapter 6 rotates synchronously with the first marker ring 9 due to the attraction between the first magnetic portion 91 and the second magnetic portion 92. The magnetic attraction range refers to the distance within which the second magnetic portion 92 can move along with the first magnetic portion 91 after the first magnetic portion 91 and the second magnetic portion 92 approach a certain distance.

[0049] In the above embodiment, the specific problem to be solved is that when the first adapter 6 and the second adapter 2 are disassembled from each other, the first adapter 6 is driven to rotate by the spiral transmission line 8. When the first adapter 6 finally stops, the position of the first adapter 6 has deviations, making it difficult to align the second adapter 2 with the first adapter 6. Figure 4As shown, the position of the first adapter 6 is the position where the user wants the first adapter 6 to be located, and the user can easily plug the first adapter 6 and the second adapter 2 together. Figure 3 As shown, when the first adapter 6 is in this position, it is difficult for the user to plug the second adapter 2 and the first adapter 6 together.

[0050] In order to place the first adapter 6 at a position desired by the user, the position of the first adapter 6 is adjusted by the first marking ring 9 , the first magnetic portion 91 , and the second magnetic portion 92 .

[0051] Based on the principle that magnets can attract each other, one or more first magnetic parts 91 are fixed on the first marking ring 9, and one or more second magnetic parts 92 are fixed on the first adapter 6. The first marking ring 9 is rotated to make the first magnetic part 91 and the second magnetic part 92 approach each other. When the first magnetic part 91 and the second magnetic part 92 are controlled to approach the closest distance, the attraction between the first magnetic part 91 and the second magnetic part 92 increases. When the first marking ring 9 is continued to be rotated, the first adapter 6 will also rotate with the first marking ring 9. Since the rotation position of the first marking ring 9 can be observed, the rotation position of the first adapter 6 can be indirectly known. The purpose of adjusting the position of the first adapter 6 is ultimately achieved by adjusting the position of the first marking ring 9.

[0052] It should be noted that the first magnetic portion 91 and the second magnetic portion 92 need to be arranged opposite to each other, and the ends of the first magnetic portion 91 and the second magnetic portion 92 that are close to each other need to attract each other.

[0053] For further reference, Figure 3 and Figure 4 In another embodiment of the telescopic probe of the present invention, the first marking ring 9 is rotatably connected to the connecting seat 5, the first magnetic portion 91 has two, the second magnetic portion 92 has two, and the top of the first marking ring 9 is provided with a mark 93;

[0054] Taking the line connecting the mark 93 and the rotation center of the first mark ring 9 as the center line, the two first magnetic parts 91 are symmetrically fixed on both sides of the first mark ring 9 along the center line, and the two second magnetic parts 92 are symmetrically fixed on both sides of the first adapter 6.

[0055] In the above embodiment, rotatably connecting the first marking ring 9 to the connecting base 5 allows the user to more conveniently observe the position of the first marking ring 9 and adjust the position of the first adapter 6. To increase the magnetic connection between the first magnetic portion 91 and the second magnetic portion 92, two through slots can be formed in the connecting base 5, one on each side of the connecting base 5, for the first magnetic portion 91 to penetrate deeply. The first magnetic portion 91 can penetrate deeply into the connecting base 5 through the through slots, ultimately shortening the distance between the first magnetic portion 91 and the second magnetic portion 92, thereby increasing the magnetic connection between the first magnetic portion 91 and the second magnetic portion 92.

[0056] Through the combination of the two first magnetic parts 91, the two second magnetic parts 92 and the mark 93 on the top of the first marking ring 9, the user can know and adjust the adjustment position of the first adapter 6 through the first marking ring 9 without seeing the first adapter 6.

[0057] The specific adjustment process is as follows: Figure 3 As shown, the first adapter 6 is in a tilted state. At this time, the first marker ring 9 is twisted to make the first magnetic part 91 and the second magnetic part 92 approach to the closest distance. The first adapter 6 is captured by the first magnetic part 91 and the second magnetic part 92, and the first adapter 6 rotates with the first marker ring 9. Then, the first marker ring 9 is twisted to make the marker 93 at the top position, as shown in FIG. Figure 4 As shown. At this point, the first adapter 6 is in a fixed position, allowing the user to accurately mate the second adapter 2 with the first adapter 6. It should be noted that the two first magnetic portions 91 at both ends of the first marking ring 9 have the same magnetic orientation. The two second magnetic portions 92 at both ends of the first adapter 6 also have the same magnetic orientation.

[0058] Please refer to Figure 5 The present invention also discloses a method for restoring the deformation of a spiral transmission line in a telescopic probe, comprising:

[0059] 101. Install an adapter at one end of the telescopic rod that is rotatable relative to the telescopic rod, and electrically connect one end of the spiral transmission line located inside the telescopic rod to the adapter.

[0060] The adapter includes a first adapter and a second adapter, the first adapter is rotatably connected to the telescopic rod, and the second adapter is fixedly connected to the detection end;

[0061] When removing the connection between the detection end and the adapter, the connection between the first adapter and the second adapter is removed to disconnect the detection end from the second adapter.

[0062] 102. Fix the detection end of the detector and the host end of the detector to the two ends of the telescopic rod respectively, electrically connect one end of the spiral transmission line to the detector through an adapter, and electrically connect the other end of the spiral transmission line to the host end;

[0063] 103. After using the detector, remove the connection between the detection end and the adapter, restore the spiral transmission line to a free state, and then reinstall the detection end and the adapter.

[0064] The beneficial effects of the method for restoring the deformation of the spiral transmission line in the telescopic probe provided by the present invention are the same as the beneficial effects of the telescopic probe described in the above technical solution, and will not be described in detail here.

[0065] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0067] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and may encompass internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0068] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic probe, characterized in that: The telescopic probe includes a detector, a spiral transmission line and a telescopic rod made of carbon fiber. The detector includes a detection end and a host end. The detection end is arranged at one end of the telescopic rod, and the host end is arranged at the other end of the telescopic rod. The spiral transmission line is located inside the telescopic rod. A first adapter and a second adapter that cooperate with each other and are detachably connected are provided between the spiral transmission line and the detection end, the first adapter being rotatably connected to one end of the telescopic rod, and the second adapter being connected to the detection end; or A first adapter and a second adapter that cooperate with each other and are detachably connected are provided between the spiral transmission line and the host end, the first adapter being rotatably connected to one end of the telescopic rod, and the second adapter being connected to the host end; and The spiral transmission line is connected to the first adapter, and the detection end is electrically connected to the host end through the spiral transmission line, the first adapter and the second adapter; The first adapter has a connecting seat on the outside, a through hole in the middle of the connecting seat, a bearing is provided in the through hole, the first adapter is rotatably connected to the connecting seat via the bearing, one end of the connecting seat is connected to the telescopic rod, and the other end of the connecting seat is connected to the detection end or the host end; The second adapter is fixed on the detection end or the host end.

2. The telescopic probe according to claim 1, characterized in that: The telescopic rod comprises a cylindrical inner rod body, a cylindrical middle rod body and a cylindrical outer rod body which are sleeved together in sequence. The detection end is connected to the cylindrical inner rod body, and the host end is connected to the cylindrical outer rod body.

3. The telescopic probe according to claim 2, characterized in that: The rotation direction of the first adapter is the same as the rotatable direction of the cylindrical inner rod body or the cylindrical outer rod body.

4. The telescopic probe according to claim 1, characterized in that: The first adapter has a first marking ring and a first magnetic portion on the outside, the first magnetic portion is fixed on the first marking ring, and the first adapter is located on the inner ring of the first marking ring; A second magnetic portion is fixedly provided on the first adapter; When the first marker ring is rotated by an external force and the second magnetic part is brought close to the magnetic attraction range of the first magnetic part, the first adapter rotates synchronously with the first marker ring due to the attraction between the first magnetic part and the second magnetic part.

5. The telescopic probe according to claim 4, characterized in that: The first marking ring is rotatably connected to the connecting seat, has two first magnetic parts, has two second magnetic parts, and a mark is set on the top of the first marking ring; Taking the line connecting the rotation center of the marker to the first marker ring as the center line, the two first magnetic parts are symmetrically fixed on both sides of the first marker ring along the center line, and the two second magnetic parts are symmetrically fixed on both sides of the first adapter.

6. The telescopic probe according to claim 1, characterized in that: The first adapter is an aviation female plug, and the second adapter is an aviation male plug.

7. A method for restoring deformation of a spiral transmission line in a telescopic probe, characterized in that: include: An adapter that can rotate relative to the telescopic rod is installed at one end of the telescopic rod, and one end of the spiral transmission line located inside the telescopic rod is electrically connected to the adapter; Fix the detection end of the detector and the host end of the detector to the two ends of the telescopic rod respectively, electrically connect one end of the spiral transmission line to the detector through the adapter, and electrically connect the other end of the spiral transmission line to the host end; After using the detector, remove the connection between the detection end and the adapter, restore the spiral transmission line to a free state, and then reinstall the detection end and the adapter.

8. The method for restoring the deformation of a spiral transmission line in a telescopic probe according to claim 7, characterized in that: The adapter includes a first adapter and a second adapter, the first adapter is rotatably connected to the telescopic rod, and the second adapter is fixedly connected to the detection end; When removing the connection between the detection end and the adapter, the connection between the first adapter and the second adapter is removed to disconnect the detection end from the second adapter.

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