A magnetic snap self-locking device

Abstract

The present application discloses a magnetic snap - type self - locking device to solve the problems of inconvenient operation and easy damage of the traditional lock - buckle structure of the box body. The present application includes a fixing member, a locking member and an unlocking accessory; the fixing member includes a main body lower cover, a convex frame is formed outward on the front surface of the main body lower cover, a partition is arranged in the convex frame and a fixing groove is formed, a spring plate is arranged in the fixing groove; a first placement groove is arranged at one end of the spring plate, and a first magnetic member is arranged in the first placement groove; a sliding connection structure is arranged between the outer side surface of the convex frame and the inner side surface of the main body upper cover, and when the main body upper cover slides in place, the opening of the convex frame is closed to form a dosage box accommodation space; a second magnetic member is arranged on the inner bottom surface of the main body upper cover; the unlocking accessory is used to be placed outside the main body upper cover and corresponding to the position of the first magnetic member when unlocking is required; the overall structure of the present application is simple, compact, small in volume, convenient to carry and low in cost; the locking and unlocking processes are more convenient, and the operation is simple and fast.

Description

Technical Field

[0001] The present application relates to the technical field of dosage boxes, and in particular to a magnetic spring-type self-locking device. Background Art

[0002] A thermoluminescent detector uses the principle of thermoluminescence to record cumulative radiation dose. A thermoluminescent dosimeter heats the detector receiving radiation and measures the thermoluminescent output with a photomultiplier tube to read the radiation dose. Its advantage is that the reading shows minimal attenuation even after long periods of storage. Furthermore, detectors can be manufactured in various shapes for personal and environmental chi- and gamma-dose measurement and monitoring. With the rapid development of technology, thermoluminescent dosimeters are becoming widely used.

[0003] In the prior art, a dose box is used to hold and carry a detector. The locking structure of a conventional dose box after the detector is installed is a physical hard friction structure, and an external tool (such as tweezers or a steel sheet) is required to open it. However, if too much force is applied during the opening process, the detector in the dose box will be scattered everywhere, thereby damaging the detector, making it impossible to complete the intended work and causing immeasurable economic losses. The existing locking structure is a physical hard friction locking method of a snap-on type. In addition, when using the locking method, it is necessary to repeatedly apply force in the snap-on direction to snap the detector. When opening a dose box using a locking method, a sturdy external tool is required, which is prone to deformation of the snap-on structure and structural damage at the snap-on location. At the same time, it is inconvenient to use the tool to press the snap-on during use. Another method is screw fixing, which requires drilling a threaded hole on the box body and a screw through hole on the box cover, and then using a screwdriver to fix the box body and the box cover together. This screw fixing method is not beautiful in appearance, and a screwdriver is required to open or lock the box during use.

[0004] Therefore, how to provide a device (box) that can be easily opened and reliably locked is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To this end, the present application provides a magnetic spring-type self-locking device to solve the problem that the box body adopts a traditional lock structure that is inconvenient to operate and prone to damage.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A magnetic spring-type self-locking device, comprising: a fixing part, a locking part and an unlocking accessory;

[0008] The fixing member includes a main body lower cover. A convex frame is formed outward on the front surface of the main body lower cover. A partition connected thereto is vertically arranged on one side inside the convex frame, forming a fixing groove. A spring plate is arranged in the fixing groove. One end of the spring plate is provided with a first placement groove, and a first magnetic member is arranged in the first placement groove.

[0009] The locking member is a main body upper cover adapted to the outer shape of the convex frame. A sliding connection structure adapted to each other is arranged between the outer side surface of the convex frame and the inner side surface of the main body upper cover. When the main body upper cover slides in place, the opening of the convex frame is closed to form a dosage box accommodation space. A second magnetic member is arranged on the inner bottom surface of the main body upper cover corresponding to the position of the first magnetic member.

[0010] The unlocking fitting is a third magnetic member, which is used to be placed outside the main body upper cover and corresponding to the position of the first magnetic member when unlocking is required. The third magnetic member has the same polarity as the first magnetic member, the second magnetic member has a different polarity from the first magnetic member, and the repulsive magnetic force between the third magnetic member and the first magnetic member is greater than the attractive magnetic force between the second magnetic member and the first magnetic member.

[0011] Optionally, the sliding connection structure includes a groove and a rib adapted to the groove.

[0012] A baffle is arranged at the upper end of the main body lower cover, and the grooves are arranged on the left and right outer side surfaces of the convex frame.

[0013] The main body upper cover includes an upper cover plate. The upper end of the upper cover plate has an opening. The lower end, left side, and right side of the upper cover plate are respectively provided with enclosing plates. Among them, ribs are arranged on the corresponding enclosing plates on the left and right inner side surfaces.

[0014] Optionally, a central axis is arranged in the middle of the spring plate. Integral springs are arranged on both sides of the central axis, and the first placement groove is arranged at the lower end of the spring. The central axis is connected to the fixing groove in a clamping manner.

[0015] Optionally, the central axis is a circular shaft. A clamping groove is opened in the middle of the fixing groove along the width direction. Two blocking parts are symmetrically formed inside the clamping groove, and the distance between the two blocking parts is less than the diameter of the circular shaft.

[0016] Optionally, an obtuse angle is formed between the springs on both sides of the central axis. The lowest point of the spring is higher than the inner bottom surface of the fixing groove, and the springs on both sides of the central axis can swing at the clamping groove.

[0017] Optionally, the baffle is connected to the upper part of the convex frame, and the height of the baffle is higher than the height of the convex frame, and the length of the baffle is greater than the length of the convex frame. The length of the upper cover plate is the same as the length of the baffle.

[0018] Optionally, two limiting members are provided at the bottom of the fixing groove and on both sides of the card slot; the upper surfaces of the two limiting members are both inclined planes.

[0019] Optionally, a second placement groove is formed inside the upper cover plate, and the second placement groove is used to fix the second magnetic attraction member.

[0020] Optionally, one or two through holes are formed in the width direction of the main body lower cover.

[0021] Optionally, the through hole is a long strip hole.

[0022] Compared with the prior art, the present application has at least the following beneficial effects:

[0023] 1. The present application provides a magnetic attraction elastic sheet type self-locking device, including: a fixing member, a locking member and an unlocking fitting; the fixing member includes a main body lower cover, a convex frame is formed outward on the front surface of the main body lower cover, a partition is arranged inside the convex frame and a fixing groove is formed, a elastic sheet plate is arranged in the fixing groove; a first placement groove is arranged at one end of the elastic sheet plate, and a first magnetic attraction member is arranged in the first placement groove; a sliding connection structure adapted to each other is arranged on the outer side surface of the convex frame and the inner side surface of the main body upper cover, and when the main body upper cover slides in place, the opening of the convex frame is closed to form a dose box accommodation space; a second magnetic attraction member is arranged at the position corresponding to the first magnetic attraction member on the inner bottom surface of the main body upper cover, and the unlocking fitting is a third magnetic attraction member, which is used to be placed outside the main body upper cover and at the position corresponding to the first magnetic attraction member when unlocking is required; the overall structure of this self-locking device is simple, compact, reasonable in design, small in volume, convenient to carry, low in cost, and has a dose box accommodation space for accommodating a detector; at the same time, the locking and unlocking processes are more convenient, that is, the disassembly is convenient, the operation is simple and fast, and the problem of damage is not easy to occur; it has a wide range of applicability and can be used both indoors and outdoors; in addition, compared with the traditional dose box, this magnetic attraction elastic sheet type self-locking device does not need to drill screw through holes on the outside, and has the advantage of beautiful overall appearance.

[0024] 2. Through holes are formed in the width direction of the main body lower cover of the present application, so that this self-locking device can be carried on the chest by means of a clip on a hanging rope, or watchbands can be installed at the two through holes and used on the wrist, which is more convenient to carry; in addition, the through holes can be designed as long strip holes, and binding ropes with appropriate widths are tied, which is suitable for different users and improves the comfort of wearing. Description of the Drawings

[0025] To more intuitively illustrate the prior art and the present application, several exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings are generally not regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / deletion / attribution division, specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. of certain units (components) based on the technical concept disclosed in the present application and the exemplary drawings.

[0026] Figure 1 Structural schematic diagram provided for an embodiment of the present application;

[0027] Figure 2 For Figure 1 Exploded schematic diagram shown;

[0028] Figure 3 For Figure 2 Structural schematic of the locking fastener in Figure 1 ;

[0029] Figure 4 For Figure 2 Structural schematic of the locking fastener in Figure 2 ;

[0030] Figure 5 For Figure 2 Structural schematic diagram of the elastic sheet board provided on the fixing member in

[0031] Figure 6 For Figure 2 Structural schematic of the fixing member in Figure 1 0;

[0032] Figure 7 For Figure 2 Structural schematic of the fixing member in Figure 2 ;

[0033] Figure 8 For Figure 7 Partial schematic diagram at the fixing groove in

[0034] Figure 9 For Figure 8 Partial schematic diagram at the card slot in

[0035] Figure 10 Structural schematic diagram of the locked state provided for an embodiment of the present application;

[0036] Figure 11 Structural schematic diagram of the unlocked state provided for an embodiment of the present application.

[0037] Explanation of reference numerals:

[0038] 1. Fixing member; 11. Main body lower cover; 111. Through hole; 12. Convex frame; 121. Groove; 122. Accommodating space; 13. Partition board; 14. Fixing groove; 141. Limiting member; 15. Baffle; 16. Card slot; 161. Blocking portion

[0039] 2. Locking member; 21. Upper cover plate; 211. Second placement groove; 22. Enclosing plate; 23. Rib

[0040] 3. Elastic sheet board; 31. Central axis; 32. Elastic sheet; 33. First placement groove

[0041] 4. Third magnetic attraction member; 401. Magnet region Detailed implementation mode

[0042] The following further details the present application through specific embodiments in conjunction with the accompanying drawings

[0043] In the description of the present application: Unless otherwise specified, the meaning of "a plurality" is two or more. Terms such as "first", "second", "third", etc. in the present application are intended to distinguish the objects being referred to, and do not have special significance in terms of technical connotations (for example, it should not be understood as emphasizing the importance level or order, etc.). Expressions such as "including", "comprising", "having", etc., also mean "not limited to" (certain units, components, materials, steps, etc.)

[0044] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in the present application are usually for the convenience of visually understanding with reference to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product. Without departing from the technical concept disclosed in the present application, changes in these relative positional relationships should also be regarded as within the scope of the expression of the present application

[0045] In one embodiment of the present application, a magnetic attraction elastic sheet type self-locking device, as Figures 1 - 11 shown, includes: a fixing member 1, a locking member 2 and an unlocking accessory

[0046] The fixing member 1 includes a main body lower cover 11. A convex frame 12 is formed outward on the front surface of the main body lower cover 11. A partition board 13 connected thereto is arranged vertically on one side inside the convex frame 12, and a fixing groove 14 is formed. An elastic sheet board 3 is arranged in the fixing groove 14. One end of the elastic sheet board 3 is provided with a first placement groove 33, and a first magnetic attraction member is arranged in the first placement groove 33

[0047] The locking member 2 is an upper cover of the main body adapted to the outer shape of the convex frame 12. A sliding connection structure adapted to each other is arranged between the outer side surface of the convex frame 12 and the inner side surface of the upper cover of the main body. When the upper cover of the main body slides in place, the opening of the convex frame 12 is closed to form a dose box accommodating space 122. The accommodating space 122 is located on the right side of the partition board 13, and the above-mentioned elastic sheet board 3 is located on the left side of the partition board 13, asFigure 5 As shown in the figure; a second magnetic member is provided on the inner bottom surface of the main body upper cover corresponding to the position of the first magnetic member;

[0048] The unlocking accessory is a third magnetic member 4, Figure 1 and Figure 3 the cross position in the figure is the magnet area 401 for placing the third magnetic member 4. The third magnetic member 4 is used to be placed on the outside of the main body upper cover and corresponding to the position of the first magnetic member when unlocking is required. Among them, the third magnetic member 4 and the first magnetic member have the same polarity, and the second magnetic member and the first magnetic member have different polarities. According to the principle of like poles repelling and opposite poles attracting, and the repulsive magnetic force between the third magnetic member 4 and the first magnetic member is greater than the attractive magnetic force between the second magnetic member and the first magnetic member. When the locking member 2 is slidably connected along the fixing member 1, locking is achieved by the attractive magnetic force between the first magnetic member and the second magnetic member; when it is necessary to separate the locking member 2 and the fixing member 1, the third magnetic member 4 is placed on the outside of the main body upper cover corresponding to the position of the first magnetic member, and unlocking is achieved by the repulsive magnetic force between the third magnetic member 4 and the first magnetic member. Specifically, when unlocking is required, the user holds the third magnetic member 4 and then places it on the outside of the main body upper cover corresponding to the position of the first magnetic member. Through the magnetic repulsion between the third magnetic member 4 and the first magnetic member, the locking member 2 is pulled out, so that the locking member 2 and the fixing member 1 are opened.

[0049] In this embodiment, the third magnetic member 4 can be fixed on the finger ring, and then the finger ring with the third magnetic member 4 is worn on the finger, which is convenient to carry; or a receiving groove can be provided on the fixing member 1 or the locking member 2. The third magnetic member 4 and the receiving groove can be connected by a snap connection method, so that when the dose box is locked, the third magnetic member 4 is placed in the receiving groove. When it is necessary to open the dose box, the third magnetic member 4 is quickly taken out and placed on the outside of the main body upper cover corresponding to the position of the first magnetic member to open it.

[0050] Preferably, a baffle 15 is provided at the upper end of the main body lower cover 11; the sliding connection structure is a structure with concave-convex adaptation. Grooves 121 are provided on the left and right outer side surfaces of the convex frame 12; the main body upper cover includes an upper cover plate 21. The upper end of the upper cover plate 21 has an opening, and the lower end, left side, and right side are respectively provided with enclosing plates 22. Among them: convex strips 23 adapted to the grooves 121 are provided on the inner side surfaces of the left and right enclosing plates 22.

[0051] When the self-locking device is in a locked state, the main body lower cover 11, the convex frame 12 and the upper cover plate 21 form a dosage box accommodating space 122, so that the self-locking device also has the function of a box body. The accommodating space 122 can be used to install a thermoluminescent detector. The overall structure is simple, compact, and small in size, which is easy to carry, and the locking and unlocking process is more convenient. In addition, the self-locking device also realizes the function of rapid locking and unlocking, which is easy to operate and efficient to use, avoiding the traditional method of fixing with screws or snaps, which requires tools to open, resulting in complicated operation and inconvenience in use.

[0052] Preferably, a second placement groove 211 is opened on the inner side of the upper cover plate 21, and the second placement groove 211 is used to fix the second magnetic attraction member.

[0053] Preferably, the baffle 15 is connected to the upper portion of the convex frame 12 , and the height of the baffle 15 is higher than the height of the convex frame 12 , and the length of the baffle 15 is greater than the length of the convex frame 12 ; the length of the upper cover 21 is the same as the length of the baffle 15 .

[0054] Preferably, a central axis 31 is provided in the middle of the spring plate 3, integrated springs 32 are provided on both sides of the central axis 31, and a first placement groove 33 is provided at the lower end of the spring 32; the central axis 31 is connected to the fixing groove 14 in a snap-fit manner.

[0055] Further preferably, the central axis 31 is a circular axis; a card slot 16 is opened in the middle of the fixing groove 14 along the width direction, and two blocking portions 161 are symmetrically formed on the inner side of the card slot 16. The distance between the two blocking portions 161 is less than the diameter of the circular axis. When the central axis 31 of the spring plate 3 is clamped in the card slot 16, the two blocking portions 161 limit the central axis 31.

[0056] Further preferably, the thickness of the spring piece 32 is less than the depth of the fixing groove 14, and the lowest point of the spring piece 32 is higher than the inner bottom surface of the fixing groove 14. The spring pieces 32 on both sides of the central axis 31 can swing at the slots 16 of the fixing groove 14, so that when the lock member 2 slides inward to its proper position, the side of the spring piece 32 close to the first placement groove 33 is tilted upward. Figure 10 When the lock member 2 is pulled out, the side of the spring 32 away from the first placement groove 33 is tilted upwards, see Figure 11 .

[0057] Preferably, two limiting members 141 are provided at the bottom of the fixing slot 14 corresponding to both sides of the card slot 16 for limiting the spring piece 32, and the upper surfaces of the two limiting members 141 are both inclined surfaces, such as Figure 10 、 Figure 11 shown.

[0058] The angle formed between the springs 32 on both sides of the central axis 31 is an obtuse angle, such as Figure 10As shown in the figure, when the fixing member 1 is in the locked state, the elastic sheet 32 on the side of the central shaft 31 close to the first placement groove 33 is basically in a horizontal state. The elastic sheet 32 on the side of the central shaft 31 away from the first placement groove 33 is in contact with the upper surface (inclined surface) of the corresponding limiting member 141. At this time, the first magnetic attracting member and the second magnetic attracting member attract each other, and the upper part of the first placement groove 33 just blocks in the second placement groove 211; As Figure 11 shown in the figure, when the fixing member 1 is in the unlocked state, due to the magnetic repulsion between the third magnetic attracting member 4 and the first magnetic attracting member, the fixing member 1 can be opened. At this time, the elastic sheet 32 on the side of the central shaft 31 away from the first placement groove 33 is basically in a horizontal state, and at this time, the elastic sheet 32 on the side of the central shaft 31 away from the first placement groove 33 will not exceed the depth of the fixing groove 14, otherwise it will affect the process of pulling out the locking member 2 (specifically, the upper cover plate 21) outward. The elastic sheet 32 on the side of the central shaft 31 close to the first placement groove 33 is in contact with the upper surface (inclined surface) of the corresponding limiting member 141.

[0059] Preferably, a through hole 111 or two through holes 111 are opened on the main body lower cover 11 corresponding to the outside of the convex frame 12 in the width direction.

[0060] When one through hole 111 is opened, the user can tie a hanging rope at this through hole 111 and set a clip at this hanging rope, and wear this self-locking device on the chest through the clip; At the same time, when two through holes 111 are opened, the user can set a binding rope at these two through holes 111 and tie it to the wrist, similar to the watchband on a watch.

[0061] Further preferably, the through hole 111 is a long hole, and a binding rope with a moderate width can be tied, which is suitable for different users and improves the comfort of wearing.

[0062] After placing the thermoluminescent detector in the dose box accommodation space 122 and performing locking, the locking member 2 is slidably connected along the fixing member 1. The user first presses the side of the elastic sheet plate 3 corresponding to the side close to the first placement groove 33 with the hand, and then inserts the locking member 2 into the fixing member 1. Specifically, the side of the upper cover plate 21 with an opening is inserted along the end of the main body lower cover 11 away from the baffle 15, and the convex strips 23 on both sides of the upper cover plate 21 are pushed into the grooves 121 on both sides of the convex frame 12. When pushing the upper cover plate 21 inward, the first magnetic attracting member in the first placement groove 33 and the second magnetic attracting member in the second placement groove 211 on the upper cover plate 21 are attracted by magnetic force, so that the first placement groove 33 is sucked into the second placement groove 211, so that the main body upper cover and the main body lower cover 11 are fixed together to reach the locked state;

[0063] When it is necessary to take out the thermoluminescent detector in the dose cassette accommodation space 122, unlocking is required. At this time, the user holds the unlocking accessory (the third magnetic part 4) and then places it at the position corresponding to the first magnetic part outside the main body upper cover. By using the magnetic repulsion between the third magnetic part 4 and the first magnetic part, the upper cover plate 21 is pulled outwards, so that the locking part 2 and the fixing part 1 are opened, and then the thermoluminescent detector can be taken out.

[0064] In addition, the cassette (i.e., the accommodation space 122) formed in this application is not limited to the thermoluminescent dose cassette and can also be used as other cassettes.

[0065] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written out should also be considered as falling within the scope described in this specification.

[0066] In the above text, this application has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of this application, several conventional adjustments or further innovations can be made to these specific embodiments; but as long as they do not depart from the technical concept of this application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the protection scope of the claims of this application.

Claims

1. A magnetic snap - type self - locking device, characterized in that, Comprising: A fixing member, a locking member and an unlocking accessory; The fixing member includes a main body lower cover, a convex frame is formed outward on the front surface of the main body lower cover, a partition connected thereto is arranged vertically on one side inside the convex frame, and a fixing groove is formed. A shrapnel plate is arranged in the fixing groove; a first placement groove is arranged at one end of the shrapnel plate, and a first magnetic attracting member is arranged in the first placement groove; The locking member is a main body upper cover adapted to the outer shape of the convex frame. A sliding connection structure adapted to each other is arranged on the outer side surface of the convex frame and the inner side surface of the main body upper cover. When the main body upper cover slides in place, the opening of the convex frame is closed to form a dosage box accommodation space; a second magnetic attracting member is arranged on the inner bottom surface of the main body upper cover corresponding to the position of the first magnetic attracting member; The unlocking accessory is a third magnetic attracting member, which is used to be placed outside the main body upper cover and corresponding to the position of the first magnetic attracting member when unlocking is required; the third magnetic attracting member has the same polarity as the first magnetic attracting member, the second magnetic attracting member has a different polarity from the first magnetic attracting member, and the repulsive magnetic force between the third magnetic attracting member and the first magnetic attracting member is greater than the attractive magnetic force between the second magnetic attracting member and the first magnetic attracting member.

2. The magnetic snap - type self - locking device according to claim 1, wherein The sliding connection structure includes a groove and a rib adapted to the groove; A baffle is arranged at the upper end of the main body lower cover, and the grooves are arranged on the left and right outer side surfaces of the convex frame; The main body upper cover includes an upper cover plate, the upper end of the upper cover plate has an opening, and surrounding plates are respectively arranged at the lower end, left side and right side of the upper cover plate. Ribs are arranged on the corresponding surrounding plates on the left and right inner side surfaces.

3. The magnetic snap - type self - locking device according to claim 2, wherein, A central shaft is arranged in the middle of the shrapnel plate, integral shrapnels are arranged on both sides of the central shaft, and the first placement groove is arranged at the lower end of the shrapnel; the central shaft is connected to the fixing groove in a clamping manner.

4. The magnetic snap - type self - locking device according to claim 3, wherein, The central shaft is a round shaft; A card slot is opened in the middle of the fixing groove along the width direction, two blocking parts are symmetrically formed inside the card slot, and the distance between the two blocking parts is smaller than the diameter of the round shaft.

5. The magnetic snap - type self - locking device according to claim 4, wherein An obtuse angle is formed between the shrapnels on both sides of the central shaft; the lowest point of the shrapnel is higher than the inner bottom surface of the fixing groove, and the shrapnels on both sides of the central shaft can swing at the card slot.

6. The magnetic snap - type self - locking device according to claim 2, wherein, The baffle is connected to the upper part of the convex frame, and the height of the baffle is higher than the height of the convex frame, and the length of the baffle is greater than the length of the convex frame; the length of the upper cover plate is the same as the length of the baffle.

7. The magnetic snap - type self - locking device according to claim 4, wherein, Two limiting members are arranged on both sides of the card slot at the bottom of the fixing groove; the upper surfaces of the two limiting members are both inclined surfaces.

8. The magnetic snap - type self - locking device according to claim 2, wherein, A second placement groove is opened inside the upper cover plate, and the second placement groove is used to fix the second magnetic attracting member.

9. The magnetic snap - type self - locking device according to claim 2, wherein, One through hole or two through holes are opened in the width direction of the main body lower cover.

10. The magnetic snap self-locking device according to claim 9, wherein, The through hole is a long strip hole.

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