A long rod gamma radiation dose rate meter

Abstract

The utility model provides a long rod gamma radiation dose rate instrument relates to gamma radiation dose detection instrument technical field to solve the problem that data transmission line is easy to disorderly wind together when the existing technology radiation measuring instrument extension pole retracts, this long rod gamma radiation dose rate instrument includes mounting seat, telescopic rod, probe, wire and automatic take -up device, automatic take -up device installs in mounting seat, one end of telescopic rod is connected with mounting seat and the other end is connected with probe, automatic take -up device includes the rotary reel and pivot that set up in mounting seat, the rotary reel can rotate and install on the pivot, and between the rotary reel inboard and pivot is connected with elastic contraction spare, the wire is wound on the rotary reel and its first end extends into telescopic rod and is connected with probe, and elastic contraction spare can make the rotary reel retract with telescopic rod and play wire. This gamma radiation dose rate instrument can guarantee the stable operation of detection instrument, has improved the convenience when using.

Description

Technical Field

[0001] This utility model relates to the field of gamma radiation dose detection instruments, and in particular to a long rod gamma radiation dose rate meter. Background Technology

[0002] Gamma dose rate meters, as important devices for measuring gamma-ray radiation dose rate in the environment, have wide applications in many fields such as nuclear energy utilization, radiation environment monitoring, medical radiation protection, and industrial non-destructive testing. Currently, commercially available gamma dose rate meters have several limitations in radiation dose measurement. Traditional gamma dose rate meters are mostly handheld or fixed in design. While handheld devices are convenient to carry, in some special scenarios, such as high-radiation areas, confined spaces, or environments containing hazardous materials, operators find it difficult to approach the measurement point. This not only affects the accuracy of the measurement results but may also pose a threat to the operator's health.

[0003] To address the aforementioned issues, some existing measuring instruments increase the measuring distance by extending the measuring rod, thus solving the problem of operators being unable to approach the measuring point. For example, Chinese patent CN218412918U discloses a portable radiation measuring instrument whose connection mechanism includes a data transmission line and a telescopic extension rod, which allows adjustment of the probe's extension length. However, in existing technologies, the data transmission line is not promptly retracted after the telescopic extension rod is extended, and it easily becomes tangled and disordered during the extension and retraction of the extension rod, thus affecting the normal use of the measuring instrument. Utility Model Content

[0004] The purpose of this invention is to provide a long-rod gamma radiation dose rate meter to solve the problem that data transmission lines are easily tangled together disorderly when the extension rod of the radiation measuring instrument is extended or retracted in the prior art. The long-rod gamma radiation dose rate meter of this invention avoids disorderly tangling of wires caused by the extension or retraction of the extension rod, ensures the stable operation of the detection instrument, and improves the convenience of using the long-rod gamma radiation dose rate meter.

[0005] This utility model provides a long-rod gamma radiation dose rate meter, including a mounting base, a telescopic rod, a probe, a lead wire, and an automatic lead wire retraction device. The automatic lead wire retraction device is installed in the mounting base. One end of the telescopic rod is connected to the mounting base and the other end is connected to the probe. The automatic lead wire retraction device includes a rotating coil and a rotating shaft disposed in the mounting base. The rotating coil is rotatably mounted on the rotating shaft. An elastic retraction member is connected between the inner side of the rotating coil and the rotating shaft. The lead wire is wound around the rotating coil, and its first end extends into the telescopic rod and is connected to the probe. The elastic retraction member enables the rotating coil to retract and extend the lead wire as the telescopic rod extends and retracts.

[0006] As a preferred embodiment of this utility model, the rotating coil includes a first baffle, a second baffle, and a rotating cylinder. The rotating cylinder has an inner cavity. The first baffle and the second baffle are respectively connected to the two ends of the rotating cylinder in the axial direction. The rotating cylinder is connected to the rotating shaft. The elastic contraction member is installed in the inner cavity, with one end connected to the rotating shaft and the other end connected to the rotating cylinder.

[0007] As a preferred embodiment of this utility model, it also includes a main unit, which is installed on one side of the mounting base. A conductive slip ring is provided on one side of the rotating coil, and the conductive slip ring is located on the side of the rotating coil close to the main unit. The second end of the wire is connected to the main unit through the conductive slip ring.

[0008] As a preferred embodiment of this utility model, a top plate is detachably installed on the top of the inner cavity, the top plate is configured to enclose the inner cavity, a wire groove is provided on one side of the rotating cylinder along its axial direction, and a wire hole corresponding to the wire groove is provided on the top plate, the second end of the wire passes through the wire groove and the wire hole and is connected to the conductive slip ring.

[0009] As a preferred embodiment of this utility model, an arc-shaped baffle is provided inside the mounting base, and the arc-shaped baffle is arranged around the periphery of the rotating coil.

[0010] As a preferred embodiment of this utility model, a first connecting part is provided on the mounting base, the first connecting part is connected to the telescopic rod, a guide is provided in the mounting base, and a guide hole is provided on the guide, the guide hole being disposed opposite to the first connecting part.

[0011] As a preferred embodiment of this utility model, it also includes a handle, and a second connecting part is provided on the mounting base, wherein the handle is detachably connected to the second connecting part.

[0012] As a preferred embodiment of this utility model, the axis of the second connecting part is arranged parallel to the axis of the first connecting part, or the axis of the second connecting part is arranged perpendicular to the axis of the first connecting part.

[0013] In a preferred embodiment of this utility model, the telescopic rod includes a first sleeve and a second sleeve, the second sleeve being telescopically disposed within the first sleeve, the first sleeve being connected to the mounting base, and the second sleeve being connected to the probe.

[0014] As a preferred embodiment of the present invention, the second sleeve includes a first rod and a second rod, a first hinge portion is provided at one end of the first rod, and a second hinge portion is provided at one end of the second rod, wherein the first rod and the second rod are foldably connected through the first hinge portion and the second hinge portion.

[0015] Compared with the prior art, the present invention has the following positive effects:

[0016] This utility model provides a long-rod gamma radiation dose rate meter, comprising a mounting base, a telescopic rod, a probe, a lead wire, and an automatic lead wire retraction device. The automatic lead wire retraction device is installed in the mounting base. One end of the telescopic rod is connected to the mounting base, and the other end is connected to the probe. The automatic lead wire retraction device includes a rotating coil and a rotating shaft disposed within the mounting base. The rotating coil is rotatably mounted on the rotating shaft. An elastic retraction member is connected between the inner side of the rotating coil and the rotating shaft. The lead wire is wound around the rotating coil, with its first end extending into the telescopic rod and connected to the probe. The elastic retraction member allows the rotating coil to retract and extend the lead wire as the telescopic rod extends and retracts. In use, the long-rod gamma radiation dose rate meter allows adjustment of the probe's extension length via the telescopic rod. The probe is moved to the desired position for detection, and the data obtained by the probe is transmitted via the lead wire. Initially, the telescopic rod is at its shortest length, with most of the wire wrapped around the rotating reel, and the elastic retractor is in a relaxed state. As the telescopic rod gradually extends, it pulls the wire outward from the rotating reel, and the rotation of the reel gradually tightens the elastic retractor. As the telescopic rod gradually retracts, the elastic retractor drives the rotating reel to gradually retract and coil the wire inside the telescopic rod. This structure enables automatic wire release and retraction, avoiding disorderly tangling of the wire caused by the telescopic rod's extension and retraction, ensuring stable operation of the detection instrument, and improving the ease of use of the long-rod gamma radiation dose rate meter. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the long-rod gamma radiation dose rate meter of this utility model.

[0019] Figure 2 This is a cross-sectional view of the mounting base in this utility model;

[0020] Figure 3 This is a diagram showing the internal structure of the mounting base of this utility model after removing the top cover and the conductive slip ring.

[0021] Figure 4 This is a perspective view of the rotating spool in this utility model;

[0022] Figure 5 This is a schematic diagram of the connection between the first rod and the second rod in this utility model.

[0023] In the diagram: 1. Mounting base; 11. First connecting part; 12. Second connecting part; 13. Mounting groove; 14. Base; 2. Telescopic rod; 21. First rod body; 211. First hinge part; 22. Second rod body; 221. Second hinge part; 23. Locking element; 3. Probe; 4. Handle; 5. Main unit; 6. Automatic wire take-up and unwinding device; 61. Rotating shaft; 62. Rotating wire reel; 621. First baffle; 622. Second baffle; 623. Rotating cylinder; 624. Wire passage groove; 63. Top plate; 631. Wire hole; 64. Elastic retraction element; 7. Arc-shaped baffle; 8. Conductive slip ring; 9. Guide element; 91. Guide hole. Detailed Implementation

[0024] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] This embodiment provides a long-rod gamma radiation dose rate meter, such as... Figures 1-5 As shown, the device includes a mounting base 1, a telescopic rod 2, a probe 3, a wire, and an automatic wire reeling / laying device 6. The automatic wire reeling / laying device 6 is installed in the mounting base 1, and one end of the telescopic rod 2 is connected to the mounting base 1 and the other end is connected to the probe 3.

[0029] The automatic wire reel 6 includes a rotating wire reel 62 and a rotating shaft 61 disposed within the mounting base 1. The rotating wire reel 62 is rotatably mounted on the rotating shaft 61, and an elastic retractable element is connected between the rotating wire reel 62 and the rotating shaft 61. Preferably, the elastic retractable element is a helical spring. The wire is wound around the rotating wire reel 62, with its first end extending into the telescopic rod 2 and connected to the probe 3. The elastic retractable element allows the rotating wire reel 62 to reel in and out the wire as the telescopic rod 2 extends and retracts. Rotating the rotating wire reel 62 allows the elastic retractable element to store power, and the stored power allows the elastic retractable element 64 to drive the rotating wire reel 62 to rotate around the rotating shaft 61.

[0030] In this embodiment, the long-rod gamma radiation dose rate meter allows for adjustment of the probe 3's extension length via the telescopic rod 2. The probe 3 is positioned to perform detection, and the data obtained is transmitted via a wire. Initially, the telescopic rod 2 is at its shortest length, with most of the wire wound around the rotating reel 62, and the elastic retraction member is relaxed. As the telescopic rod 2 gradually extends, it pulls the wire outward from the rotating reel 62, and the rotation of the reel 62 gradually tightens the elastic retraction member. As the telescopic rod 2 gradually retracts, the elastic retraction member rotates the reel 62, gradually retracting and coiling the wire within the telescopic rod 2. This structure enables automatic wire release and retraction, avoiding disorderly wire tangling caused by the extension and retraction of the telescopic rod 2, ensuring stable operation of the instrument, and improving the ease of use of the long-rod gamma radiation dose rate meter.

[0031] In a preferred embodiment, the rotating coil 62 includes a first baffle 621, a second baffle 622, and a rotating cylinder 623. The rotating cylinder 623 has an internal cavity, and the first baffle 621 and the second baffle 622 are respectively connected to the two ends of the rotating cylinder 623 in the axial direction. The rotating cylinder 623 is connected to a rotating shaft 61, and an elastic contractile member is installed in the internal cavity, with one end connected to the rotating shaft 61 and the other end connected to the rotating cylinder 623. The rotating shaft 61 is vertically fixed to the bottom surface of the internal cavity of the mounting base 1. The inner diameter of the rotating cylinder 623 is larger than the diameter of the rotating shaft 61, and the rotating cylinder 623 is sleeved on the rotating shaft 61, forming an internal cavity between the rotating cylinder 623 and the rotating shaft 61 capable of accommodating the elastic contractile member. The rotating cylinder 623 and the rotating shaft 61 are concentrically arranged, with a through hole in the center of the first baffle 621 through which the rotating shaft 61 passes, allowing the rotating coil 62 to rotate around the rotating shaft 61. The wire is wound around the rotating cylinder 623, and the first baffle 621 and the second baffle 622 limit the wire and prevent it from coming off.

[0032] In a preferred embodiment, the long rod gamma radiation dose rate meter of this embodiment also includes a main unit 5, which is installed on one side of the mounting base 1. Preferably, a mounting groove 13 is provided on the outside of the mounting base 1, and the main unit 5 is installed in the mounting groove 13 to install the main unit 5 on the mounting base 1.

[0033] A conductive slip ring 8 is provided on one side of the rotating coil 62, near the host 5. The second end of the wire is connected to the host 5 through the conductive slip ring 8. The conductive slip ring 8 is installed above the center of the rotating coil 62. The conductive slip ring 8 is existing technology and includes a stator, rotor, slip ring, and conductive brush. The rotor of the conductive slip ring 8 is installed at the center of the second baffle 622. One end of the wire on the rotating coil 62 is connected to the rotor, and the rotor rotates together with the rotating coil 62. The stator of the conductive slip ring 8 is fixedly installed on the inner wall of the mounting base 1. The stator is connected to the host 5 on the mounting base 1 through the wire, thereby realizing the electrical connection between the probe 3 and the host 5.

[0034] In this embodiment, the data obtained by probe 3 is transmitted to host 5 via wire, processed and displayed by host 5. By mounting host 5 on mounting base 1, it is convenient to display the detection results in a timely manner.

[0035] In a preferred embodiment, a top plate 63 is detachably installed on the top of the inner cavity. The top plate 63 is configured to enclose the inner cavity. The top plate 63 can be connected to the rotating cylinder 623 or the second baffle 622 by screws. After the top plate 63 is removed, the elastic contraction component can be disassembled and assembled.

[0036] A wire-passing groove 624 is provided on one side of the rotating cylinder 623 along its axial direction. A wire-passing hole 631 corresponding to the wire-passing groove 624 is provided on the top plate 63. The second end of the wire passes through the wire-passing groove 624 and the wire-passing hole 631 and is connected to the conductive slip ring. The wire-passing groove 624 and the wire-passing hole 631 provide channels for the arrangement of wires, making the wire arrangement neater and more reasonable. The wires on the stator of the conductive slip ring pass through the side wall of the mounting base 1 and extend to the outside of the mounting base 1. The second end of the wire is connected to the main unit 5 through a plug.

[0037] In a preferred embodiment, an arc-shaped baffle 7 is provided inside the mounting base 1. The arc-shaped baffle 7 is arranged around the periphery of the rotating coil 62 and is concentric with the rotating shaft 61. The arc-shaped baffle 7 is used to limit the conductor in the circumferential direction of the rotating coil 62.

[0038] In a preferred embodiment, a first connecting part 11 is provided on the mounting base 1, and the first connecting part 11 is connected to the telescopic rod 2. The first connecting part 11 and the telescopic rod 2 can be connected by a thread or a snap-fit. A guide member 9 is provided in the mounting base 1, and a guide hole 91 is provided on the guide member 9, which is opposite to the first connecting part 11. The guide hole 91 is used to guide the wire to the telescopic rod 2, and one end of the arc-shaped baffle 7 blocks the front of the guide hole 91. After the wire passes through the guide hole 91, it passes around the end of the arc-shaped baffle 7 and is then wound around the rotating coil 62. When the wire is subjected to tension from the rotating coil 62, the wire presses against the end of the arc-shaped baffle 7. The friction between the wire and the end of the arc-shaped baffle 7 reduces the continued transmission of tension, thereby allowing the extended telescopic rod 2 to remain in an extended state.

[0039] After the wire passes through the telescopic rod 2, it is fixedly connected to the front end of the telescopic rod 2. The probe 3 is connected to the wire at the end of the telescopic rod 2 through an aviation plug, thereby realizing the electrical connection between the wire and the probe 3. The probe 3 is detachable, so that the type of probe 3 can be changed as needed.

[0040] Specifically, the mounting base 1 includes a base 14 and a top cover. The rotating shaft 61 and the rotating coil 62 are located inside the base 14. A mounting groove 13 formed by a snap-fit ​​plate is provided on the upper surface of the top cover. The main unit 5 is snapped and fixed on the mounting base 1 by the snap-fit ​​plate, which facilitates the disassembly and assembly of the main unit 5.

[0041] In a preferred embodiment, the long-rod gamma radiation dose rate meter of this embodiment also includes a handle 4, and a second connecting part 12 is provided on the mounting base 1. The handle 4 and the second connecting part are detachably connected. The handle 4 and the second connecting part can be connected by a thread or a snap-fit.

[0042] In a preferred embodiment, the axis of the second connecting portion 12 is parallel to the axis of the first connecting portion 11, or the axis of the second connecting portion 12 is perpendicular to the axis of the first connecting portion 11. The second connecting portion 12 can be located on the side of the mounting base 1 away from the first connecting portion 11, or the second connecting portion 12 can be located on the side of the base 14 of the mounting base 1 away from the top cover, thereby allowing the operator to operate by adjusting the orientation of the handle 4, improving the flexibility of use.

[0043] In one preferred embodiment, the telescopic rod 2 includes a first sleeve and a second sleeve, the second sleeve being telescopically disposed within the first sleeve. The first sleeve is connected to the mounting base 1, and the second sleeve is connected to the probe 3. A wire passes through the first and second sleeves and connects to the probe 3.

[0044] As a preferred embodiment, such as Figure 5As shown, the second sleeve includes a first rod 21 and a second rod 22. A first hinge portion 211 is provided at one end of the first rod 21, and a second hinge portion 221 is provided at one end of the second rod 22. The first rod 21 and the second rod 22 are foldably connected via the first hinge portion 211 and the second hinge portion 221. The first hinge portion 211 and the second hinge portion 221 are connected by a locking member 23. Specifically, the first hinge portion 211 and the second hinge portion 221 can be connected by a locking bolt, allowing the first rod 21 and the second rod 22 to be relatively adjustable to form different angles between the axis of the first rod 21 and the axis of the second rod 22, and to maintain these angles during operation.

[0045] In this embodiment, the second sleeve includes a first rod 21 and a second rod 22, and the relative angle between the first rod 21 and the second rod 22 can be adjusted, thereby facilitating the change of the orientation of the probe 3, improving the flexibility of use, and expanding the application range.

[0046] In this embodiment, an automatic wire winding and unwinding device is installed in the inner cavity of the mounting base 1. The wire is wound and stored on the automatic wire winding and unwinding device. One end of the wire is connected to the main unit 5, and the other end passes through the telescopic rod 2 and is connected to the probe 3. When the telescopic rod 2 extends or shortens, the part of the wire passing through the telescopic rod 2 is extended and shortened adaptively through the wire winding and unwinding of the automatic wire winding and unwinding device. This ensures the connection between the probe 3 and the main unit 5 and the stable operation of the detection instrument. It can avoid disorderly tangling of the wire caused by the extension and retraction of the telescopic rod 2, and improves the convenience of using the long rod gamma radiation dose rate meter.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A long-rod gamma radiation dose rate meter, characterized in that, The device includes a mounting base (1), a telescopic rod (2), a probe (3), a wire, and an automatic wire take-up and release device (6). The automatic wire take-up and release device (6) is installed in the mounting base (1). One end of the telescopic rod (2) is connected to the mounting base (1), and the other end is connected to the probe (3). The automatic wire take-up and release device (6) includes a rotating reel (62) and a rotating shaft (61) disposed in the mounting base (1). The rotating reel (62) is rotatably mounted on the rotating shaft (61). An elastic retractable member is connected between the inner side of the rotating reel (62) and the rotating shaft (61). The wire is wound around the rotating reel (62), and its first end extends into the telescopic rod (2) and is connected to the probe (3). The elastic retractable member enables the rotating reel (62) to take up and release the wire as the telescopic rod (2) extends and retracts.

2. The long-rod gamma radiation dose rate meter according to claim 1, characterized in that, The rotating coil (62) includes a first baffle (621), a second baffle (622), and a rotating cylinder (623). The rotating cylinder (623) has an inner cavity. The first baffle (621) and the second baffle (622) are respectively connected to the two ends of the rotating cylinder (623) in the axial direction. The rotating cylinder (623) is connected to the rotating shaft (61). The elastic contraction member is installed in the inner cavity, with one end connected to the rotating shaft (61) and the other end connected to the rotating cylinder (623).

3. The long-rod gamma radiation dose rate meter according to claim 2, characterized in that, It also includes a host (5), which is installed on one side of the mounting base (1). A conductive slip ring (8) is provided on one side of the rotating coil (62). The conductive slip ring (8) is located on the rotating coil (62) near the host (5). The second end of the wire is connected to the host (5) through the conductive slip ring (8).

4. The long-rod gamma radiation dose rate meter according to claim 3, characterized in that, A top plate (63) is detachably installed on the top of the inner cavity, and the top plate (63) is configured to enclose the inner cavity. A wire groove (624) is provided on one side of the rotating cylinder (623) along its axial direction. A wire hole (631) corresponding to the wire groove (624) is provided on the top plate (63). The second end of the wire passes through the wire groove (624) and the wire hole (631) and is connected to the conductive slip ring.

5. A long-rod gamma radiation dose rate meter according to claim 1, characterized in that, An arc-shaped baffle (7) is provided inside the mounting base (1), and the arc-shaped baffle (7) is arranged around the periphery of the rotating disc (62).

6. The long-rod gamma radiation dose rate meter according to claim 1, characterized in that, A first connecting part (11) is provided on the mounting base (1), the first connecting part (11) is connected to the telescopic rod (2), a guide (9) is provided in the mounting base (1), and a guide hole (91) is provided on the guide (9), the guide hole (91) is disposed opposite to the first connecting part (11).

7. A long-rod gamma radiation dose rate meter according to claim 6, characterized in that, It also includes a handle (4), and a second connecting part (12) is provided on the mounting base (1), and the handle (4) is detachably connected to the second connecting part.

8. A long-rod gamma radiation dose rate meter according to claim 7, characterized in that, The axis of the second connecting part (12) is parallel to the axis of the first connecting part (11), or the axis of the second connecting part (12) is perpendicular to the axis of the first connecting part (11).

9. A long-rod gamma radiation dose rate meter according to claim 1, characterized in that, The telescopic rod (2) includes a first sleeve and a second sleeve. The second sleeve is telescopically disposed in the first sleeve. The first sleeve is connected to the mounting base (1), and the second sleeve is connected to the probe (3).

10. A long-rod gamma radiation dose rate meter according to claim 9, characterized in that, The second sleeve includes a first rod (21) and a second rod (22). A first hinge (211) is provided at one end of the first rod (21), and a second hinge (221) is provided at one end of the second rod (22). The first rod (21) and the second rod (22) are foldably connected through the first hinge (211) and the second hinge (221).

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