A fixing device for a thermoluminescence dosimeter card

Abstract

The utility model relates to the fixed field of dose card, concretely relates to a kind of fixing device of thermoluminescence dosimeter dose card.It includes fixed shell, the inside sliding connection of fixed shell has dose card body.The utility model is through the mechanical clamping of moving rod and card block, cooperate the elastic limit of spring piece and the elastic limit of dose card body clamping groove, form double fixed structure, when dose card body is pushed into fixed shell, moving rod is slid along moving trajectory groove to the card block gap groove and completes clamping, can bear external force and not loose when pulling;At the same time, spring piece is embedded in the clamping groove of dose card body, limit its vertical direction displacement, ensure that dose card still keep stable when being vibrated, collided or personnel movement, will not occur displacement or overturn, effectively avoid the radiation measurement error caused by position change, guarantee the accuracy of measurement data;And, only dose card body is pressed inwards again, unlocking mechanism can be triggered, pressing action promotes moving rod from card block gap groove and separates.

Description

Technical Field

[0001] This utility model relates to the field of dose card fixing, and more specifically, to a device for fixing the dose card of a thermoluminescent dosimeter. Background Technology

[0002] The fixation device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter is a functional component or device specifically designed to fix the thermoluminescent dosimeter dosimeter dosimeter. Its core function is to ensure that the dosimeter dosimeter dosimeter maintains a stable position during radiation monitoring, so as to facilitate accurate measurement of radiation dose, while meeting the safety, convenience and protection requirements of different usage scenarios.

[0003] Currently, most common dosimeter card fixing methods rely on a single mechanical snap-fit ​​or elastic limiting structure. For example, if the dosimeter card body is simply locked in a slot, when the equipment is subjected to external force pulling, vibration caused by violent movement of personnel, or accidental collision, the dosimeter card is prone to lateral displacement or flipping in the fixing shell, causing the radiation measurement point to deviate from the preset position, resulting in a large error in the radiation dose measurement data. This makes it difficult to meet the needs of high-precision monitoring scenarios such as medical radiotherapy and nuclear facility inspection.

[0004] Regarding the replacement of dose cards, existing unlocking mechanisms are usually complex in design. Some require the use of tools such as screwdrivers to disassemble the outer shell, or unlocking is achieved through multiple linked components. Not only are the operation steps cumbersome, but they are also difficult to complete with one hand. In emergency scenarios such as medical emergency rescue and nuclear accident emergency response, where dose cards need to be replaced frequently, the time-consuming replacement process can easily delay radiation monitoring work and fail to meet the actual needs of rapid response. In view of this, we propose a fixing device for the dose card of a thermoluminescent dosimeter. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned shortcomings and provide a fixing device for the dose card of a thermoluminescent dosimeter. This solves the problems of existing dose card fixing methods being simple, easily displaced and flipped by external forces, leading to measurement errors, and not being easy to meet high-precision scenarios; the unlocking structure being complex, requiring tools and difficult to operate with one hand, and taking a long time to replace, making it difficult to adapt to the rapid response requirements in emergency scenarios.

[0006] To achieve the above objectives, this utility model provides a fixing device for a thermoluminescent dosimeter ...

[0007] The limiting component includes a separation plate that is slidably connected to the fixed shell. The separation plate has a movement trajectory groove for controlling the movement of the dose card body. The movement trajectory groove is Y-shaped and a moving rod is slidably connected to the movement trajectory groove. A spring is fixedly connected to one side of the bottom of the separation plate.

[0008] The beneficial effects of this utility model are:

[0009] 1. In this utility model, a double fixing structure is formed by the mechanical engagement of the moving rod and the locking block, combined with the elastic limiting of the spring and the locking groove of the dose card body. When the dose card body is pushed into the fixing shell, the moving rod slides along the moving trajectory groove to the notch of the locking block to complete the engagement, which can withstand external pulling without loosening. At the same time, the spring is embedded in the locking groove of the dose card body, limiting its vertical displacement, ensuring that the dose card remains stable when subjected to vibration, collision or personnel movement, and will not shift or flip, effectively avoiding radiation measurement errors caused by position changes and ensuring the accuracy of measurement data.

[0010] Furthermore, simply pressing the dose card body inward again triggers the unlocking mechanism. The pressing action pushes the moving rod out of the notch in the card block and into the deeper second moving slot, simultaneously releasing the spring from the dose card body. The entire unlocking process can be completed with one hand without any tools. Subsequently, the elastic restoring force of the damping spring drives the separation plate to move outward, smoothly pushing out the dose card body. The removal process is smooth and quick, greatly improving the efficiency of dose card replacement, and is especially suitable for scenarios that require frequent dose card replacement.

[0011] As a further improvement to this technical solution, the inside of the fixing shell is provided with an installation groove for installing the dose card body, and a spring clip is fixedly installed on the top of the fixing shell. The spring clip is used to fix the fixing shell to the worker's clothing. A snap-fit ​​groove adapted to the spring is provided on one side of the dose card body for limiting the position of the dose card body.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the spring clip provides adjustable clamping force, which can be firmly clamped on clothing of different thicknesses, from thin work clothes to heavy lead protective clothing, and it is convenient to adjust the wearing position at any time to meet the wearing needs in different work scenarios.

[0013] As a further improvement to this technical solution, a locking block is also fixedly connected to the separation plate. The locking block is adapted to the moving rod. The moving track groove surrounds the locking block, and the locking block has a notch that is adapted to the moving rod for fixing the moving rod. The moving track groove is divided into a first moving groove and a second moving groove, and the depth of the first moving groove is less than the depth of the second moving groove, so that when the moving rod moves to the top of the first moving groove, it automatically slides into the second moving groove.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the depth difference design of the first and second moving slots in the Y-shaped moving track groove allows the moving rod to automatically slide into the second moving slot when it reaches the top of the first moving slot. There is no need for precise manual control of force and position. Whether it is a female worker with less strength or a quick operation in an emergency, it can ensure that the moving rod accurately completes the locking and unlocking action, reducing the operation error rate.

[0015] As a further improvement to this technical solution, a damping spring is fixedly connected to one end of the separation plate. The damping spring is located above the spring plate, and one end of the damping spring is connected to the inner wall of the fixed shell. The end of the moving rod that contacts the moving trajectory groove is cylindrical, and the end of the moving rod that contacts the fixed shell is rotatably connected to the fixed shell.

[0016] The beneficial effect of adopting the above-mentioned further solution is that, during the process of removing the dose card body, the damping spring provides a stable buffering force, controls the moving speed of the separation plate, and avoids the dose card from colliding with the fixed shell due to being ejected too quickly, thereby reducing physical damage to the dose card. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the assembly of the limiting component of this utility model;

[0019] Figure 3 This is a top view of the limiting component of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Schematic diagram at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the limiting component of this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 100. Fixing shell; 101. Dosage card body; 102. Spring clip;

[0024] 200. Limiting component; 201. Separation plate; 202. Movement track groove; 203. Movement rod; 204. Spring piece; 205. Locking block; 206. Damping spring; 2021. First movement groove; 2022. Second movement groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The present invention provides the following preferred embodiments.

[0027] Please see Figures 1-5 As shown, this embodiment provides a fixing device for a thermoluminescent dosimeter dose card, including a fixing shell 100, a dose card body 101 slidably connected inside the fixing shell 100, and a limit component 200 provided on one side inside the fixing shell 100.

[0028] The limiting component 200 includes a separation plate 201 that is slidably connected to the fixed shell 100. The separation plate 201 has a movement trajectory groove 202 for controlling the movement of the dose card body 101. The movement trajectory groove 202 is Y-shaped, and a moving rod 203 is slidably connected to the movement trajectory groove 202. A spring piece 204 is fixedly connected to one side of the bottom of the separation plate 201.

[0029] The improvement in this embodiment is as follows:

[0030] Considering that radiation workers such as doctors and nuclear engineers frequently need to move during their work, and that the dose card is prone to displacement during movement (e.g., bending over or raising an arm during surgery), this can change the exposure direction of the dose card, causing radiation dose measurement deviations and directly affecting the effectiveness of occupational health assessments and protection strategies. Therefore, when fixing the dose card body 101, simply push the dose card body 101 to move the separation plate 201 deeper into the fixing shell 100. During this process, the moving rod 203 will slide along the moving trajectory groove 202 on the separation plate 201, eventually contacting the separation plate 201. The fixing component on the 1 completes the locking, thereby stabilizing the position of the dose card body 101. When it is necessary to remove the dose card body 101, press the dose card body 101 inward again. Utilizing the characteristics of the elastic element in the limiting component 200, the self-locking state is released, and the removal operation of the dose card body 101 is easily completed. On the one hand, the locking mechanism between the moving rod 203 and the fixing component on the separation plate 201 can provide reliable clamping force, ensuring that the dose card body 101 is not easily displaced when subjected to external vibration, collision or personnel movement, thus ensuring the accuracy and reliability of radiation dose measurement data.

[0031] On the other hand, the simple "push to fix, press to remove" operation eliminates the need for additional tools, significantly shortening the installation and removal time of the dosing card. This is especially suitable for scenarios such as medical and nuclear industries where dosing cards need to be changed frequently, improving work efficiency. At the same time, the intuitive operation logic reduces the learning cost for operators and reduces errors caused by complex operation.

[0032] Based on the above, the specific structure will be disclosed in detail:

[0033] To achieve the goal of securing the dosage card body 101 to the staff's clothing, the structure on the fixing shell 100 is disclosed in detail, such as... Figure 1 and Figure 2 As shown, the interior of the fixing shell 100 has an installation groove for installing the dosage card body 101. A spring clip 102 is fixedly installed on the top of the fixing shell 100. The spring clip 102 is used to fix the fixing shell 100 to the worker's clothing. Therefore, when the worker needs to carry the dosage card body 101 for work, the dosage card body 101 is fixed by the limiting component 200 inside the fixing shell 100, and then the fixing shell 100 and the worker's clothing are fixed by the spring clip 102. The spring clip 102 is existing technology. Its working principle is as follows: the elastic force of the spring drives the clamp arm to close, applying pressure to the object. The spring clip 102 uses the clamping force of metal or elastic material to firmly attach the fixing shell 100 to clothing such as a breast pocket, collar, or lead apron. Its vibration resistance and friction resistance are significantly better than traditional pins or tapes.

[0034] Specifically, a snap-fit ​​groove adapted to the spring 204 is provided on one side of the dose card body 101 to limit the dose card body 101. The movement of the separation plate 201 drives the spring 204 to move, so that one end of the spring 204 snaps into the snap-fit ​​groove of the dose card body 101, thereby achieving the stability of the dose card body 101 when it is fixed and preventing the dose card body 101 from falling off.

[0035] Furthermore, to achieve fixation of the dose card body 101, the limiting component 200 is disclosed in further detail, such as... Figures 3-4 As shown, a locking block 205 is also fixedly connected to the separating plate 201. The locking block 205 is adapted to the moving rod 203. The moving track groove 202 surrounds the locking block 205, and the locking block 205 has a notch that is adapted to the moving rod 203 for fixing the moving rod 203. The moving track groove 202 is divided into a first moving groove 2021 and a second moving groove 2022, and the depth of the first moving groove 2021 is less than the depth of the second moving groove 2022, so that when the moving rod 203 moves to the top of the first moving groove 2021, it automatically slides into the second moving groove 2022. Therefore, if it is necessary to fix the dosage card body 101, please refer to the attached instructions. Figure 4The operation is as follows: The dose card body 101 is pushed into the fixed shell 100. The dose card body 101 will drive the separation plate 201 to move inward synchronously. During the movement of the separation plate 201, the moving rod 203 will slide along the direction a1 in the first moving groove 2021. When the moving rod 203 slides to the notch b position on the card block 205, the moving rod 203 and the separation plate 201 are fixedly connected. At the same time, the spring 204 will engage with the dose card body 101, thus completing the entire fixing process of the dose card body 101. The moving rod 203 and the separation plate 201 are fixedly connected through the notch b on the card block 205. The spring 204 engages with the dose card body 101 at the same time, forming a double fixing structure. This design provides stronger fixing force and can effectively resist external vibration, collision and other interference, prevent the dose card body 101 from shifting or falling off during use, ensure that the dose card is always in the correct exposure position, and ensure the accuracy and reliability of radiation dose measurement data.

[0036] However, to achieve the removal of the dose card body 101, the limiting component 200 is further disclosed in detail, such as... Figure 5 As shown, a damping spring 206 is fixedly connected to one end of the separation plate 201. The damping spring 206 is located above the spring piece 204, and one end of the damping spring 206 is connected to the inner wall of the fixed shell 100. The end of the moving rod 203 that contacts the moving trajectory groove 202 is cylindrical, and the end of the moving rod 203 that contacts the fixed shell 100 is rotatably connected to the fixed shell 100. Therefore, when it is necessary to remove the dose card body 101, the dose card body 101 is pressed inward again, pushing the moving rod 203 to slide from the notch of the card block 205 into the second moving groove 2022. This releases the locking state of the locking block 205 and the moving rod 203. At this time, the tension on the damping spring 206 disappears, and its elastic restoring force drives the separating plate 201 to move outward. The separating plate 201 simultaneously pushes the dose card body 101 outward. At the same time, the locking state between the spring 204 and the dose card body 101 is also released, and finally the dose card body 101 is completely unlocked. The elastic restoring force of the damping spring 206 drives the separating plate 201 to actively push out the dose card, avoiding the wear of the dose card edge or scratches on the sensitive surface that may be caused by manual pulling.

[0037] Figure 4 The specific process is as follows:

[0038] When the dose card body 101 is pushed inward, the dose card body 101 contacts the separation plate 201, driving the separation plate 201 to move inward synchronously. During this process, the moving rod 203 slides along the a1 direction on the first moving groove 2021, and the damping spring 206 and the spring piece 204 move along the a2 direction. When the moving rod 203 slides to the notch at b on the card block 205, mechanical locking and fixing are achieved. At the same time, one end of the spring piece 204 is embedded in the dose card body 101, completing double fixing.

[0039] Press the dose card body 101 again, the damping spring 206 releases its elastic force to drive the separation plate 201 to move, so that the moving rod 203 disengages from the notch of the card block 205 and slides into other positions along the c1 direction. Under the action of the damping spring 206, the separation plate 201 moves along the c2 direction to release the lock and unlock the dose card body 101.

[0040] The fixing device for the dose card of the thermoluminescent dosimeter of this utility model is used in specific applications as follows:

[0041] The dosage card body 101 is gently pushed into the mounting groove of the fixing shell 100. The dosage card body 101 pushes the separation plate 201 to move into the fixing shell 100. When the separation plate 201 moves, the Y-shaped moving track groove 202 on it guides the moving rod 203 to slide in a specific direction along the first moving groove 2021 (shallower). When the moving rod 203 slides to the notch position of the locking block 205 of the separation plate 201, it engages and locks with the locking block 205. At the same time, the spring piece 204 at the bottom of the separation plate 201 is embedded in the locking groove of the dosage card body 101 to complete the double fixation. Then, the fixing shell 100 and the staff's clothes are fixed by the spring clip 102.

[0042] Press the dose card body 101 inward again to push the moving rod 203 out of the notch of the card block 205 and slide it into the second moving groove 2022, which has a greater depth (it will automatically slide down due to the depth difference). After the moving rod 203 is unlocked from the card block 205, the elastic restoring force of the damping spring 206 drives the separation plate 201 to move outward, and simultaneously pushes out the dose card body 101. During the movement of the separation plate 201, the spring 204 separates from the card slot of the dose card body 101, and the dose card is completely unlocked and can be taken out directly.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing device for a thermoluminescent dosimeter ... The dose card body (101) is slidably connected inside the fixed shell (100), and a limit component (200) is provided on one side inside the fixed shell (100); The limiting component (200) includes a separation plate (201) slidably connected to the fixed shell (100). The separation plate (201) has a movement trajectory groove (202) for controlling the movement of the dose card body (101). The movement trajectory groove (202) is Y-shaped in general, and a moving rod (203) is slidably connected to the movement trajectory groove (202). A spring piece (204) is fixedly connected to one side of the bottom of the separation plate (201).

2. The fixing device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter according to claim 1, characterized in that: The interior of the fixed shell (100) is provided with a mounting groove for mounting the dosage card body (101), and a spring clip (102) is fixedly mounted on the top of the fixed shell (100).

3. The fixing device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter according to claim 2, characterized in that: The spring clip (102) is used to fix the fixing shell (100) to the staff's clothing. The dose card body (101) has a snap-fit ​​groove on one side that is adapted to the spring clip (204) for limiting the dose card body (101).

4. The fixing device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter according to claim 1, characterized in that: A locking block (205) is also fixedly connected to the separation plate (201). The locking block (205) is adapted to the moving rod (203). The moving track groove (202) surrounds the locking block (205), and the locking block (205) has a notch groove adapted to the moving rod (203) for fixing the moving rod (203).

5. The fixing device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter according to claim 1, characterized in that: The moving track groove (202) is divided into a first moving groove (2021) and a second moving groove (2022), and the depth of the first moving groove (2021) is less than the depth of the second moving groove (2022), so that when the moving rod (203) moves to the top of the first moving groove (2021), it automatically slides down to the second moving groove (2022).

6. The fixing device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter according to claim 1, characterized in that: A damping spring (206) is fixedly connected to one end of the separation plate (201). The damping spring (206) is located above the spring sheet (204), and one end of the damping spring (206) is connected to the inner wall of the fixed shell (100).

7. The fixing device for the thermoluminescent dosimeter dosimeter dosimeter dosimeter according to claim 1, characterized in that: The end of the moving rod (203) that contacts the moving track groove (202) is cylindrical, and the end of the moving rod (203) that contacts the fixed shell (100) is rotatably connected to the fixed shell (100).

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