Portable radiation detector

Abstract

The utility model discloses a portable radiation detector, which belongs to the radiation detection equipment technical field, and comprises a battery replacement mechanism, a mistaken touch prevention mechanism, a sealing cover and a hand-held mechanism, the battery replacement mechanism comprises a shell, a battery box and a motion assembly, the shell is hollow, the battery box is located in the shell, the motion assembly is connected with the battery box, and the hand-held mechanism is connected with the battery box. The movement assembly is installed on the outer shell, the mistaken touch prevention mechanism is installed on the outer shell, the sealing cover is installed on the lower side of the outer shell, the handheld mechanism comprises a handheld rod and a rotating assembly, the rotating assembly is installed in the sealing cover, the handheld rod is connected with the rotating assembly, and rapid replacement of a battery is achieved through the battery replacement structure.

Description

Technical Field

[0001] The utility model relates to the technical field of radiation detection equipment, and particularly discloses a portable radiation detector. Background Technique

[0002] A radiation detector is an instrument used to measure and monitor the radiation level in the environment. With the progress of modern technology and the increasing concern about radiation among people, radiation detectors are widely used in various fields. However, traditional radiation detectors are not convenient to carry, so the development of portable radiation detectors has gradually been put on the agenda. First of all, the development background of portable radiation detectors can be traced back to the rise of the nuclear energy industry. As a clean and efficient energy source, nuclear energy is widely used in power generation, medical diagnosis, scientific research and other fields. However, the application of nuclear energy also brings radiation risks. In order to ensure the safety of workers and the public, portable radiation detectors came into being to monitor the radiation level in scenarios such as nuclear facilities, nuclear waste storage and nuclear accidents. Secondly, portable radiation detectors also play an important role in the medical field. Medical imaging technologies such as X-rays, CT scans and nuclear medicine all generate radiation. In order to protect the health of patients and medical staff, portable radiation detectors are used to measure and monitor the radiation level generated by medical equipment and ensure it is within a safe range. In addition, with the popularization of wireless communication technology, people's concern about the radiation of electronic devices such as mobile phones, TVs, and microwave ovens has also increased. Portable radiation detectors can be used to measure and evaluate the radiation level generated by these electronic devices to help people understand and manage radiation risks. Finally, the development of portable radiation detectors also benefits from the progress of sensor technology. Modern portable radiation detectors usually adopt highly sensitive sensors that can accurately measure various types of radiation, such as ionizing radiation, non-ionizing radiation and electromagnetic radiation, etc., and play an important role in these fields. With the continuous innovation and progress of technology, portable radiation detectors will continue to develop and provide people with more accurate and convenient radiation measurement and monitoring solutions.

[0003] The patent with the publication number CN211293273U discloses a portable radiation detector based on CLYC. The technical solution of this patent is as follows: There is a housing, inside which there is an electrical cavity, a groove, and a card slot. One end of the groove is connected to the card slot. A probe is installed in the card slot, and one end of the probe is installed in the groove. The end of the probe away from the groove is hinged to the outer shell, and the other end of the probe is communicatively connected to the detection end. A lock plate is fixedly installed on the probe. There are a lock slot and a through slot on the lock plate. At the position corresponding to the lock plate on the card slot, there is a lock plate installation slot, and the lock plate installation slot is connected to the reset slot. The lock slot is connected to a lock block. The lock block is installed on an unlocking strip. The unlocking strip is connected to the large end of the unlocking. The unlocking strip is connected to and slidable in an unlocking strip installation slot. The unlocking strip installation slot is provided on the outer shell, and the other end of the unlocking strip is inserted into the reset slot. This end of the unlocking strip is assembled and fixed with one end of a reset spring, and the other end of the reset spring is tightly fitted or fixed to the inner wall of the reset slot. However, when the battery life reaches the limit and the battery needs to be replaced, this patent is rather cumbersome and not conducive to battery replacement. Utility Model Content

[0004] Aiming at the technical problem that when the battery life of the above-mentioned radiation detector reaches the limit and the battery needs to be replaced, it is rather cumbersome and not conducive to battery replacement, a portable radiation detector with easy battery replacement and safe and convenient use is provided.

[0005] The technical solution adopted by the present utility model is as follows:

[0006] A portable radiation detector includes an enclosure cover, and also includes a battery replacement mechanism, an anti-mishandling mechanism, and a handheld mechanism. The battery replacement mechanism includes an outer shell, a battery box, and a moving component. The interior of the outer shell is hollow. The battery box is located inside the outer shell. The moving component is connected to the battery box and is installed on the outer shell. The anti-mishandling mechanism includes a protection plate and a positioning component. The positioning component is connected to the protection plate, and the protection plate is installed on the outer shell. The handheld mechanism includes a handheld rod, a hollow cylinder, a rotating component, and a limiting component. The handheld rod is connected to the rotating component. The rotating component is connected to the limiting component. The limiting component is connected to the hollow cylinder, and the hollow cylinder is installed inside the outer shell.

[0007] As a preferred embodiment of the present utility model, an empty groove is provided on the side surface of the outer shell. A display screen and a plurality of buttons are installed in the empty groove. Two limiting grooves are symmetrically arranged on the side surface of the outer shell where the empty groove is provided. The positioning component includes two limiting rods. Each limiting rod is respectively slidably installed on the inner wall of each limiting groove. A protection plate is connected between the two limiting rods. The end surface of the limiting rod where the protection plate is installed coincides with the side surface of the outer shell. The protection plate is fixedly installed on the side of the limiting rod away from the outer shell. A first connecting rod is fixedly installed on the side of the protection plate facing the outer shell. A second transmission shaft is slidably installed on the side surface of the first connecting rod. An insertion block is fixedly installed on the side of the second transmission shaft facing the outer shell. A first spring is wound around the outer surface of the second transmission shaft. One end of the first spring is fixedly installed on the side of the first connecting rod away from the outer shell, and the other end of the first spring is fixedly installed on the outer surface of the second transmission shaft.

[0008] As a preferred embodiment of the present utility model, a first limiting hole and a second limiting hole are provided on the side surface of the outer shell. The shapes and sizes of the first limiting hole and the second limiting hole are the same. The cross-sectional shape of the first limiting hole and the second limiting hole is the same as the cross-sectional shape and size of the insertion block. The distance between the central points of the cross-sections of the first limiting hole and the second limiting hole is equal to the distance between the axis of the first spring and the end surface of the protection plate facing the outer shell.

[0009] As a preferred embodiment of the present utility model, a vertical groove is provided on the side surface of the outer shell. A horizontal groove is provided on the lower end surface of the vertical groove. The battery box is slidably installed on the inner wall of the horizontal groove. A battery is installed on the battery box. The movement component includes a connecting rod. The connecting rod is rotatably installed on the side surface of the battery box. One end of the connecting rod away from the battery box is rotatably installed with a first transmission shaft. A first rotating rod is fixedly installed on the side surface of the first transmission shaft. A fixed shaft is rotatably installed on the first rotating rod. The fixed shaft is fixedly installed on the inner wall of the vertical groove. A closing block is fixedly installed on the lower side of the first rotating rod. The cross-sectional shape and size of the closing block are the same as the cross-sectional shape and size of the horizontal groove. When the side surface of the first rotating rod is parallel to the side surface of the outer shell, the end surface of the closing block coincides with the side surface of the outer shell.

[0010] As a preferred solution of the present utility model, a circular through hole is provided on the lower side of the outer shell. The hollow cylinder is coaxial with the circular through hole of the outer shell. The outer wall radius of the hollow cylinder is greater than the radius of the circular through hole of the outer shell. A closing plate is fixedly installed on the inner wall of the circular through hole of the outer shell. A rectangular groove is provided on the side surface of the closing plate. A second connecting rod is slidably installed on the closing plate. The second connecting rod is coaxial with the circular through hole of the outer shell. A fixing groove is provided on the outer surface of the second connecting rod. The center line direction of the fixing groove is parallel to the axis direction of the second connecting rod. The rotating component includes a first gear. The first gear is slidably installed on the outer surface of the second connecting rod. A rectangular protrusion is provided on the first gear. The rectangular protrusion of the first gear is slidably installed on the inner wall of the fixing groove.

[0011] As a preferred solution of the present utility model, the rotating component is connected to the handheld mechanism. The handheld mechanism further includes a first fixing rod and a second fixing rod. The first fixing rod and the second fixing rod are both fixedly installed on the lower side of the outer shell. A gap is left between the first fixing rod and the second fixing rod. A second gear is rotatably installed on the side surface of the first fixing rod away from the outer shell. The second gear meshes with the first gear. A third transmission shaft is fixedly installed on the side surface of the second gear away from the outer shell. A turntable is fixedly installed on the outer surface of the third transmission shaft. A fourth transmission shaft is fixedly installed on the side surface of the turntable away from the outer shell. A transmission rod is rotatably installed on the outer surface of the fourth transmission shaft. One end of the transmission rod away from the fourth transmission shaft is rotatably installed with a fifth transmission shaft. A second rotating rod is rotatably installed on the side surface of the fifth transmission shaft. One end of the second rotating rod away from the fifth transmission shaft is rotatably installed with a seventh transmission shaft. The seventh transmission shaft is fixedly installed on the side surface of the second fixing rod.

[0012] As a preferred solution of the present utility model, the rotating component is connected to the limiting component. The limiting component includes a limiting block. The length of the limiting block is equal to the length of the rectangular groove. The limiting block is fixedly installed on the outer surface of the second connecting rod. The width of the limiting block is equal to the width of the gap between the first fixing rod and the second fixing rod. The first gear is installed on the outer surface of the second connecting rod. A fixing disk is slidably installed on the side surface of the second connecting rod. The fixing disk is fixedly installed on the inner wall of the hollow cylinder. The second connecting rod is coaxial with the hollow cylinder. A second spring is wound around the outer surface of the second connecting rod. One end of the second spring is fixedly installed on the side surface of the fixing disk. The other end of the second spring is fixedly installed on the outer surface of the second connecting rod.

[0013] The portable radiation detector of this solution is based on existing equipment and respectively provided with a battery replacement mechanism and an anti-misoperation mechanism. By means of a moving component, the battery box located inside the device is pushed and pulled to make it exposed and taken out, so that the battery can be replaced, and then the battery box is pushed back into the device; the role of the anti-misoperation mechanism is to protect the display screen and buttons of the radiation detector to avoid misoperation; through the handheld mechanism, the support for the closed cover, the battery replacement mechanism and the anti-misoperation mechanism is realized, avoiding direct contact of the hand with the closed cover and causing extrusion to the internal parts, and realizing a stable space for the device to detect when detecting radiation.

[0014] When the battery needs to be replaced, pull the handle on the side of the first rotating rod, and then drive the first rotating rod to rotate around the fixed shaft. The first rotating rod drives the connecting rod to rotate through the first transmission shaft, and the connecting rod drives the battery box to slide along the horizontal groove, and then drives the battery box to slide out of the vertical groove, so as to facilitate battery replacement.

[0015] When there is no need to detect usually, put the first spring into the first limiting hole and put the limiting rod into the limiting groove, so as to protect the display screen and buttons through the protection plate, thus avoiding misoperation. When detecting is needed, put the first spring into the second limiting hole;

[0016] The handheld mechanism can be realized through the following structure. When detection is needed, the lifting rod pulls the raised block to move, the raised block drives the handheld rod to move, the handheld rod drives the limiting block to extend out of the rectangular groove through the second connecting rod, and then rotate the handheld rod. The handheld rod drives the second connecting rod to rotate, the second connecting rod drives the second gear to rotate through the first gear, the second gear drives the turntable to rotate through the third transmission shaft, the turntable drives the transmission rod to move through the fourth transmission shaft, the transmission rod drives the sixth transmission shaft to move through the fifth transmission shaft, the sixth transmission shaft drives the second rotating rod to rotate, and then the electromagnet on the second rotating rod starts, and the limiting block is fixed between the first fixed rod and the second rotating rod through the electromagnet. Then hold the handheld rod and detect through the detector, and the detector transmits the detection result to the circuit board. The vertical groove transmits the electrical signal to the display screen, and the detection result is displayed through the display screen.

[0017] The beneficial effects of the present utility model compared with the prior art are: (1) The present utility model realizes the rapid replacement of the battery through the battery replacement structure; (2) The present utility model realizes the protection of the display screen and buttons through the anti-misoperation mechanism, thus realizing the effects of preventing misoperation and shading to facilitate observing the numbers on the display screen. Description of the Drawings

[0018] [[ID=!17]] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2Schematic diagram of the connection relationship between the battery replacement mechanism and the closed cover of the present utility model.

[0020] Figure 3 Schematic diagram of the structure of the battery replacement mechanism of the present utility model.

[0021] Figure 4 For Figure 3 Partial enlarged structure schematic diagram at position A in

[0022] Figure 5 Schematic diagram of the positional relationship of the battery box of the present utility model.

[0023] Figure 6 For Figure 5 Partial enlarged structure schematic diagram at position B in

[0024] Figure 7 Schematic diagram of the positional relationship between the first limiting hole and the second limiting hole of the present utility model.

[0025] Figure 8 For Figure 7 Partial enlarged structure schematic diagram at position C in

[0026] Figure 9 Schematic diagram of the connection relationship between the battery replacement mechanism and the handheld mechanism of the present utility model.

[0027] Figure 10 Schematic diagram of the connection relationship between the closed cover and the handheld mechanism of the present utility model.

[0028] Figure 11 For Figure 10 Partial enlarged structure schematic diagram at position D in

[0029] Figure 12 Schematic diagram of the structure of the handheld mechanism of the present utility model.

[0030] Figure 13 For Figure 12 Partial enlarged structure schematic diagram at position E in

[0031] Figure 14 Schematic diagram of the connection relationship between the second connecting rod and the fixed disk of the present utility model.

[0032] Figure 15 For Figure 14 Partial enlarged structure schematic diagram at position F in

[0033] Figure 16 Schematic diagram of the positional relationship of the fixed groove of the present utility model.

[0034] Figure 17 For Figure 16 Partial enlarged structure schematic diagram at position G in

[0035] Figure 18This is a schematic structural diagram of the anti-misoperation mechanism of the present utility model.

[0036] Figure 19 is Figure 18 a partially enlarged structural diagram of the H position in

[0037] Reference numerals: 1 - battery replacement mechanism; 2 - anti-misoperation mechanism; 3 - enclosure; 4 - handheld mechanism; 101 - housing; 102 - empty slot; 103 - display screen; 104 - button; 105 - vertical slot; 106 - first rotating rod; 107 - closing block; 108 - connecting rod; 109 - horizontal slot; 110 - fixed shaft; 111 - battery box; 112 - battery; 113 - first transmission shaft; 114 - detector; 115 - circuit board; 116 - installation cavity; 201 - limiting slot; 202 - limiting rod; 203 - first limiting hole; 204 - second limiting hole; 205 - protection plate; 206 - first connecting rod; 207 - second transmission shaft; 208 - insertion block; 209 - first spring; 401 - sealing plate; 402 - handheld rod; 403 - protruding block; 404 - lifting rod; 405 - placement groove; 406 - hollow cylinder; 407 - closing plate; 408 - rectangular slot; 409 - first gear; 410 - turntable; 411 - third transmission shaft; 412 - fourth transmission shaft; 413 - transmission rod; 414 - fifth transmission shaft; 415 - sixth transmission shaft; 416 - second rotating rod; 417 - first fixed rod; 418 - second fixed rod; 419 - second connecting rod; 420 - fixing slot; 421 - fixing disk; 422 - second spring; 423 - second gear; 424 - limiting block; 425 - seventh transmission shaft. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0041] Please refer to Figure 1-19 , this utility model provides a technical solution:

[0042] The battery replacement mechanism 1 includes a housing 101, a connecting rod 108, and a battery box 111. The interior of the housing 101 is hollow. The battery box 111 is located inside the housing 101. A vertical groove 105 is provided on the side of the housing 101. A horizontal groove 109 is provided on the lower end surface of the vertical groove 105. The battery box 111 is slidably installed on the inner wall of the horizontal groove 109. A battery 112 is installed on the battery box 111. The connecting rod 108 is rotatably installed on the side of the battery box 111. A first transmission shaft 113 is rotatably installed at one end of the connecting rod 108 away from the battery box 111. A first rotating rod 106 is fixedly installed on the side of the first transmission shaft 113. A fixed shaft 110 is rotatably installed on the first rotating rod 106. The fixed shaft 110 is fixedly installed on the inner wall of the vertical groove 105. A closing block 107 is fixedly installed on the lower side of the first rotating rod 106. A handle is fixedly installed on the side of the first rotating rod 106. The cross-sectional shape and size of the closing block 107 are the same as those of the horizontal groove 109. When the side of the first rotating rod 106 is parallel to the side of the housing 101, the end surface of the closing block 107 coincides with the side of the housing 101. A detector 114 and a circuit board 115 are fixedly installed inside the housing 101. The detector 114 and the circuit board 115 are electrically connected. The circuit board 115 is electrically connected to the button 104. The circuit board 115 is electrically connected to the display screen 103.

[0043] As shown in Figure 2 , Figure 3 , Figure 18 and Figure 19As shown in the figure, the anti-misoperation mechanism 2 includes two limiting rods 202 and a protection plate 205. The protection plate 205 is installed on the outer shell 101. There is an empty groove 102 on the side of the outer shell 101. A display screen 103 and several buttons 104 are installed in the empty groove 102. Two limiting grooves 201 are symmetrically arranged on the side of the outer shell 101 where the empty groove 102 is provided. The positioning component includes two limiting rods 202. Each limiting rod 202 is respectively slidably installed on the inner wall of each limiting groove 201. The two limiting rods 202 are connected by the protection plate 205. The end surface of the limiting rod 202 where the protection plate 205 is installed coincides with the side surface of the outer shell 101. The protection plate 205 is fixedly installed on the side of the limiting rod 202 away from the outer shell 101. A first connecting rod 206 is fixedly installed on the side of the protection plate 205 facing the outer shell 101. A second transmission shaft 207 is slidably installed on the side of the first connecting rod 206. An insertion block 208 is fixedly installed on the side of the second transmission shaft 207 facing the outer shell 101. A first spring 209 is wound around the outer surface of the second transmission shaft 207. One end of the first spring 209 is fixedly installed on the side of the first connecting rod 206 away from the outer shell 101, and the other end of the first spring 209 is fixedly installed on the outer surface of the second transmission shaft 207. A first limiting hole 203 and a second limiting hole 204 are provided on the side surface of the outer shell 101. The shapes and sizes of the first limiting hole 203 and the second limiting hole 204 are the same. The cross-sectional shape of the first limiting hole 203 and the second limiting hole 204 is the same as the cross-sectional shape and size of the insertion block 208. The distance between the central points of the cross-sections of the first limiting hole 203 and the second limiting hole 204 is equal to the distance between the axis of the first spring 209 and the end surface of the protection plate 205 facing the outer shell 101. A probe is provided on the end surface of the outer shell 101, and the probe on the end surface of the outer shell 101 is electrically connected to the detector 114.

[0044] As shown in the attached Figure 1 , attached Figure 9 ~attached Figure 18As shown, the handheld mechanism 4 includes a sealing plate 401, a handheld rod 402, a hollow cylinder 406, a first fixing rod 417, a second fixing rod 418, and a limiting block 424. The sealing plate 401 is fixedly installed on the lower side of the closed cover 3. The hollow cylinder 406 is installed inside the outer shell 101. There is a circular through-hole on the lower side of the outer shell 101. The hollow cylinder 406 is coaxial with the circular through-hole of the outer shell 101. The outer wall radius of the hollow cylinder 406 is greater than the radius of the circular through-hole of the outer shell 101. A closing plate 407 is fixedly installed on the inner wall of the circular through-hole of the outer shell 101. A rectangular groove 408 is provided on the side of the closing plate 407. A second connecting rod 419 is slidably installed on the closing plate 407. A handheld rod 402 is fixedly installed on the lower side of the second connecting rod 419. A rubber sleeve is wrapped around the outer surface of the handheld rod 402. A raised block 403 is fixedly installed on the outer surface of the handheld rod 402. A lifting rod 404 is fixedly installed on the side of the raised block 403. A placement groove 405 is provided on the side of the sealing plate 401. The width of the placement groove 405 is equal to the length of the lifting rod 404. The second connecting rod 419 is coaxial with the circular through-hole of the outer shell 101. A fixing groove 420 is provided on the outer surface of the second connecting rod 419. The center line direction of the fixing groove 420 is parallel to the axis direction of the second connecting rod 419. The rotating component includes a first gear 409. The first gear 409 is slidably installed on the outer surface of the second connecting rod 419. A rectangular protrusion is provided on the first gear 409. The rectangular protrusion of the first gear 409 is slidably installed on the inner wall of the fixing groove 420. Both the first fixing rod 417 and the second fixing rod 418 are fixedly installed on the lower side of the outer shell 101. A gap is left between the first fixing rod 417 and the second fixing rod 418. A second gear 423 is rotatably installed on the side of the first fixing rod 417 away from the outer shell 101. The second gear 423 meshes with the first gear 409. A third transmission shaft 411 is fixedly installed on the side of the second gear 423 away from the outer shell 101. A turntable 410 is fixedly installed on the outer surface of the third transmission shaft 411. A fourth transmission shaft 412 is fixedly installed on the side of the turntable 410 away from the outer shell 101. A transmission rod 413 is rotatably installed on the outer surface of the fourth transmission shaft 412. One end of the transmission rod 413 away from the fourth transmission shaft 412 is rotatably installed with a fifth transmission shaft 414. A sixth transmission shaft 415 is fixedly installed on the side of the fifth transmission shaft 414. A second rotating rod 416 is rotatably installed on the side of the sixth transmission shaft 415. An electromagnet is installed on the second rotating rod 416. One end of the second rotating rod 416 away from the fifth transmission shaft 414 is rotatably installed with a seventh transmission shaft 425. The seventh transmission shaft 425 is fixedly installed on the side of the second fixing rod 418.The length of the limiting block 424 is equal to the length of the rectangular groove 408, the width of the limiting block 424 is equal to the width of the limiting block 424, both the limiting block 424 and the first fixing rod 417 are made of iron. A contact switch is installed on the limiting block 424, and the contact switch on the limiting block 424 is electrically connected to the electromagnet. The limiting block 424 is fixedly installed on the outer surface of the second connecting rod 419. The width of the limiting block 424 is equal to the width of the gap between the first fixing rod 417 and the second fixing rod 418. A fixing plate 421 is slidably installed on the side surface of the second connecting rod 419. The fixing plate 421 is fixedly installed on the inner wall of the hollow cylinder 406. The second connecting rod 419 and the hollow cylinder 406 are coaxial. A second spring 422 is wound around the outer surface of the second connecting rod 419. One end of the second spring 422 is fixedly installed on the side surface of the fixing plate 421, and the other end of the second spring 422 is fixedly installed on the outer surface of the second connecting rod 419.;

[0045] During the specific use process, when the battery 112 needs to be replaced, the user holds the handheld mechanism 4 with one hand and pulls the handle on the side of the first rotating rod 106 with the other hand, and then drives the first rotating rod 106 to rotate around the fixed shaft 110. The first rotating rod 106 drives the connecting rod 108 to rotate through the first transmission shaft 113. The connecting rod 108 drives the battery box 111 to slide along the horizontal groove 109, and further drives the battery box 111 to slide out of the vertical groove 105, so as to facilitate the replacement of the battery 112.

[0046] When detection is required, the user holds the handheld mechanism 4 with one hand, performs detection through the detector 114 and transmits the detection result to the circuit board 115, then transmits the electrical signal to the display screen 103, and displays the detection result through the display screen 103.

[0047] When detection is not required usually, the first spring 209 is placed into the first limiting hole 203, and the limiting rod 202 is placed into the limiting groove 201, so as to protect the display screen 103 and the button 104 through the protection plate 205, thus avoiding accidental touch. When detection is required, the first spring 209 is placed into the second limiting hole 204.

[0048] When using the manual mechanism 4, the user manually lifts the lifting rod 404, pulls the raised block 403 to move through the lifting rod 404, the raised block 403 drives the handheld rod 402 to move, the handheld rod 402 drives the limiting block 424 to extend out of the rectangular groove 408 through the second connecting rod 419, then rotates the handheld rod 402, the handheld rod 402 drives the second connecting rod 419 to rotate, the second connecting rod 419 drives the second gear 423 to rotate through the first gear 409, the transfer rod 413 drives the sixth transmission shaft 415 to move through the fifth transmission shaft 414, the sixth transmission shaft 415 drives the second rotating rod 416 to rotate. When the second rotating rod 416 contacts the contact switch on the limiting block 424, the electromagnet on the second rotating rod 416 is activated, and the limiting block 424 is fixed between the first fixed rod 417 and the second rotating rod 416 through the electromagnet

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable radiation detector, comprising a closed cover (3) and a handheld mechanism (4), characterized in that: Also included is a battery replacement mechanism (1); The battery replacement mechanism (1) is connected to the handheld mechanism (4), and the battery replacement mechanism (1) includes a housing (101), a battery box (111), and a motion component. The housing (101) is hollow, and the battery box (111) is located inside the housing (101). The motion component is connected to the battery box (111), and the motion component is installed on the housing (101). The motion component includes a connecting rod (108), and the connecting rod (108) is rotatably installed on the side of the battery box (111). The end of the connecting rod (108) away from the battery box (111) is rotatably installed with a first transmission shaft (113).

2. A portable radiation detector according to claim 1, characterized in that: The side of the housing (101) is provided with an empty slot (102), a display screen (103) and a plurality of buttons (104) are installed in the empty slot (102), and the side of the housing (101) provided with the empty slot (102) is symmetrically provided with two limiting slots (201).

3. The portable radiation detector according to claim 1, characterized in that: The invention also includes an anti-accidental touch mechanism (2), wherein the anti-accidental touch mechanism (2) includes a protective plate (205) and a positioning assembly, wherein the positioning assembly is connected to the protective plate (205), and the protective plate (205) is installed on the housing (101). The positioning assembly includes two limiting rods (202), each limiting rod (202) is slidably installed on the inner wall of each limiting groove (201), and the two limiting rods (202) are connected through the protective plate (205). The end face of the limiting rod (202) on which the protective plate (205) is installed coincides with the side face of the housing (101), and the protective plate (205) is fixedly installed on the side face of the limiting rod (202) away from the housing (101).

4. The portable radiation detector according to claim 3, characterized in that: The positioning assembly further comprises a first connecting rod (206), the first connecting rod (206) being fixedly mounted on the side of the protective plate (205) facing the housing (101), and a second transmission shaft (207) being slidably mounted on the side of the first connecting rod (206).

5. The portable radiation detector according to claim 4, characterized in that: The second transmission shaft (207) is fixedly mounted with an insert (208) on the side facing the housing (101), and a first spring (209) is wound around the outer surface of the second transmission shaft (207). One end of the first spring (209) is fixedly mounted on the side of the first connecting rod (206) away from the housing (101), and the other end of the first spring (209) is fixedly mounted on the outer surface of the second transmission shaft (207).

6. The portable radiation detector according to claim 2, characterized in that: The side of the housing (101) is provided with a first limiting hole (203) and a second limiting hole (204); the first limiting hole (203) and the second limiting hole (204) are consistent in shape and size; the cross-sectional shape of the first limiting hole (203) and the second limiting hole (204) is consistent in size with the cross-sectional shape of the insert (208); the distance between the center points of the cross-sectional shape of the first limiting hole (203) and the second limiting hole (204) is equal to the distance between the axis of the first spring (209) and the end face of the protective plate (205) toward the housing (101).

7. The portable radiation detector according to claim 2, characterized in that: A vertical groove (105) is provided on the side of the housing (101), a horizontal groove (109) is provided on the lower end surface of the vertical groove (105), the battery box (111) is slidably mounted on the inner wall of the horizontal groove (109), and a battery (112) is mounted on the battery box (111).

8. The portable radiation detector according to claim 1, characterized in that: The motion assembly further comprises a first rotating rod (106), the first rotating rod (106) being fixedly mounted on the side of the first transmission shaft (113), a fixed shaft (110) being rotatably mounted on the first rotating rod (106), the fixed shaft (110) being fixedly mounted on the inner wall of the vertical groove (105), a closing block (107) being fixedly mounted on the lower side of the first rotating rod (106), the cross-sectional shape and size of the closing block (107) being consistent with the cross-sectional shape and size of the horizontal groove (109), and when the side surface of the first rotating rod (106) is parallel to the side surface of the housing (101), the end surface of the closing block (107) coincides with the side surface of the housing (101).

Images