Charging box

Abstract

The utility model relates to the field of hearing aids, in particular to a charging box, which comprises a lower shell and an upper shell, the upper side of the upper shell is movably hinged with the lower shell through a hinge, the inner side of the lower shell is provided with an inner shell, the inner side of the inner shell is provided with a hearing aid body, and a plug-in mechanism is arranged between the upper shell and the inner shell. According to the device, friction generated when the clamping blocks slide on the inner side of the inner shell is reduced through the second polyurethane ribs, so that abrasion of the sides, away from the inserting blocks, of the clamping blocks is reduced, meanwhile, impact and friction between the clamping blocks and the limiting blocks during elastic reset can be reduced through the first polyurethane ribs, and the clamping blocks are prevented from being damaged. According to the technical scheme, the abrasion of the clamping block during mounting and dismounting is greatly reduced, the service life of the clamping block and the inserting block is prolonged by reducing the abrasion, the stability of the clamping block and the inner shell is improved when the clamping block and the inner shell are clamped, and the effect of dispensing-free mounting can be achieved by clamping the clamping block and the limiting block.

Description

Technical Field

[0001] The utility model belongs to the technical field of hearing aids, and in particular relates to a charging box. Background Art

[0002] A hearing aid is an electronic device used to improve the hearing ability of people with hearing loss. It amplifies external sounds, allowing the wearer to hear the surrounding sounds more clearly, thereby improving their quality of life. A hearing aid charging case is a portable device used to charge and store hearing aids.

[0003] After searching, in the prior art, the Chinese patent announcement number: CN214675672U, authorization date: 2021-11-09, discloses a hearing aid charging box, including a shell and a limit device, the shell including an upper shell and a lower shell, the limit device including a rotating shaft, a connecting plate, a support column, a first spring, a spring column and a positioning block, the positioning block is fixedly connected to the upper shell, the support column is located on the connecting plate, the connecting plate is fixedly connected to the inner wall of the shell, the first spring is located in the support column, the spring column is located on the first spring, and a snap mechanism is provided at the front end of the limit device, the snap mechanism includes a baffle, a second spring, an upper snap, a lower snap, a connecting column and a button; the utility model facilitates the limiting and fixing of the upper shell, and there is a sense of resistance in the process of opening and closing the upper shell, which improves the user's feel when opening and closing the cover, and at the same time facilitates the fixation between the upper shell and the lower shell, avoiding damage to the hearing aid in the hearing aid charging box due to unstable fixation.

[0004] However, the device still has the following defects: although the upper shell and the lower shell can be connected to each other by the mutual engagement between the upper buckle and the lower buckle, so that the hearing aid can be sufficiently stable when placed inside the shell, the upper buckle and the lower buckle will rub and wear against each other during use. Long-term use will be accompanied by more friction, which will cause the engagement force between the upper buckle and the lower buckle to gradually decrease as they wear against each other after long-term use, thereby affecting the stability of the connection between the upper shell and the lower shell. Utility Model Content

[0005] To address the above problems, the present invention provides a charging box comprising a lower shell and an upper shell, wherein the upper side of the upper shell is movably hinged to the lower shell via a hinge, an inner shell is provided on the inner side of the lower shell, a hearing aid body is provided on the inner side of the inner shell, and a plug-in mechanism is provided between the upper shell and the inner shell;

[0006] The plug-in mechanism includes an insert block fixedly connected to the inner side of the upper shell, a slot is provided on the upper side of the inner shell, the insert block is movably inserted into the inner side of the slot, a mounting slot is provided on the outer side of the insert block, a return spring is fixedly connected to the inside of the insert block, one end of the return spring is fixedly connected to a clamping block, and the return spring and the clamping block are both arranged on the inner side of the mounting slot.

[0007] Furthermore, the inner shell body is fixedly connected to a limiting block, the limiting block is arranged on the inner side of the slot, the clamping block is movably clamped on the inner side of the limiting block, and the inner side of the slot is provided with a first polyurethane rib, the first polyurethane rib is arranged on one side of the limiting block, the first polyurethane rib is arranged between the insert block and the limiting block, and the first polyurethane rib is arranged on the outer side of the clamping block.

[0008] Furthermore, a pushing spring is provided on the inner side of the inner shell, the pushing spring is provided on the inner side of the slot, one end of the pushing spring is fixedly connected to a second polyurethane rib, and the second polyurethane rib is provided on the outer side of the insert block.

[0009] Furthermore, a limiting groove is provided on the inner side of the inner shell, and two limiting grooves are provided. The side of the second polyurethane rib away from the plug block is fixedly connected to the limiting slide, and two limiting slides are provided, and the limiting slides are slidably connected to the inner side of the limiting groove.

[0010] Furthermore, a rebound sponge block is fixedly connected to the interior of the insert block, the rebound sponge block is arranged on the inner side of the mounting groove, one end of the rebound sponge block is fixedly connected to the clamping block, and the rebound sponge block is arranged on the inner side of the reset spring.

[0011] Furthermore, the two limiting slides are arranged up and down, and the upper side of the limiting slide located on the upper side is in the same horizontal plane as the upper side of the second polyurethane rib.

[0012] Furthermore, a rubber block is fixedly connected to one side of the first polyurethane rib, and the rubber block is arranged on the outside of the clamping block.

[0013] Furthermore, a negative pole magnet is provided on the upper side of the inner shell, a hollow groove is provided on the inner side of the negative pole magnet, the hollow groove is fixedly connected to the inner shell, and a positive pole magnet is fixedly connected to the inner side of the upper shell, and the positive pole magnet and the negative pole magnet are magnetically attracted to each other.

[0014] The beneficial effects of the utility model are:

[0015] 1. In this device, the second polyurethane rib is used to reduce the friction of the card block when it slides on the inside of the inner shell, thereby reducing the wear of the card block on the side away from the plug-in block. At the same time, the first polyurethane rib can also reduce the impact and friction between the card block and the limit block during elastic reset, greatly reducing the wear of the card block during installation and disassembly. By reducing wear, the service life of the card block and the plug-in block is increased, and the stability of the card block when it is clamped with the inner shell is increased. In addition, the clamping connection between the card block and the limit block can achieve the effect of eliminating the need for glue installation.

[0016] 2. The setting of the limiting slide and the limiting groove in this device can play a certain limiting role in the movement of the second polyurethane rib, so that it can move smoothly and is not prone to bending or falling. The rebound sponge block can play a certain auxiliary pushing role in the reset of the block through its own elasticity, and can also play a certain limiting role in the expansion and contraction of the reset spring, so that it is not easy to deform or bend during expansion and contraction.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Shows a structural main body diagram according to an embodiment of the present utility model;

[0020] Figure 2 Shows a rear view of the structure according to an embodiment of the present utility model;

[0021] Figure 3 A schematic structural diagram of the upper housing and the positive magnet according to an embodiment of the present utility model is shown;

[0022] Figure 4 A schematic structural diagram of the inner shell and the negative pole magnet according to an embodiment of the present utility model is shown;

[0023] Figure 5 A schematic cross-sectional view of the inner housing and the insert block according to an embodiment of the present utility model is shown;

[0024] Figure 6 A schematic diagram of the top view of the insert block and the limit block according to an embodiment of the present utility model is shown;

[0025] Figure 7 Shown according to the utility model Figure 5 Schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 8 Shown according to the utility model Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0027] In the figure: 1. Lower shell; 2. Upper shell; 3. Inner shell; 4. Plug-in mechanism; 41. Insert block; 42. Slot; 43. Mounting slot; 44. Return spring; 45. Block; 46. Limit block; 47. First polyurethane rib; 51. Positive magnet; 52. Hollow slot; 53. Negative magnet; 6. Hearing aid body; 71. Second polyurethane rib; 72. Push spring; 81. Limit slide; 82. Limit slot; 9. Rebound sponge block; 10. Rubber block. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] The present invention provides a charging box, including a lower shell 1 and an upper shell 2, as shown in FIG. Figures 1-8 shown.

[0030] The upper side of the upper shell 2 is hinged to the lower shell 1 via a hinge. An inner shell 3 is provided on the inner side of the lower shell 1. A plug-in mechanism 4 is provided between the upper shell 2 and the inner shell 3. A hearing aid body 6 is provided on the inner side of the inner shell 3.

[0031] The plug-in mechanism 4 includes an insert block 41 fixedly connected to the inner side of the upper shell 2, a slot 42 is provided on the upper side of the inner shell 3, the insert block 41 is movably inserted into the inner side of the slot 42, a mounting groove 43 is provided on the outer side of the insert block 41, a return spring 44 is fixedly connected to the inside of the insert block 41, one end of the return spring 44 is fixedly connected to a clamping block 45, and the return spring 44 and the clamping block 45 are both arranged on the inner side of the mounting groove 43.

[0032] The inner shell 3 is fixedly connected to a limit block 46, and the limit block 46 is arranged on the inner side of the slot 42. The clamping block 45 is movably clamped on the inner side of the limit block 46. The inner side of the slot 42 is provided with a first polyurethane rib 47, and the first polyurethane rib 47 is arranged on one side of the limit block 46. The first polyurethane rib 47 is arranged between the insert block 41 and the limit block 46, and the first polyurethane rib 47 is arranged on the outer side of the clamping block 45.

[0033] Specifically, when the insert block 41 is inserted into the slot 42, the inner housing 3 will squeeze the clamping block 45, causing it to move toward the inside of the installation groove 43. When the insert block 41 is fully inserted into the inside of the slot 42, the return spring 44 can use its own elasticity to drive the clamping block 45 to return to its original position and insert it into the inside of the limit block 46.

[0034] In addition, when the plug block 41 is inserted into the inner side of the slot 42, the first polyurethane rib 47 can play a certain role in preventing wear on the side of the block 45 away from the plug block 41, reducing the friction of the block 45 during daily use. At the same time, the side of the limit block 46 close to the plug block 41 is tilted, which makes the block 45 smoother when squeezed and stretched due to the up and down movement of the plug block 41, thereby further reducing the wear of the block 45.

[0035] The inner side of the inner shell 3 is provided with a pushing spring 72, and the pushing spring 72 is provided on the inner side of the slot 42. Figure 3-Figure 8 shown.

[0036] One end of the pushing spring 72 is fixedly connected to a second polyurethane rib 71 , and the second polyurethane rib 71 is disposed outside the insert block 41 .

[0037] A limiting groove 82 is provided on the inner side of the inner shell 3 , and two limiting grooves 82 are provided. The side of the second polyurethane rib 71 away from the plug block 41 is fixedly connected to a limiting slide 81 , and two limiting slides 81 are provided, and the limiting slides 81 are slidably connected to the inner side of the limiting groove 82 .

[0038] The inside of the insert block 41 is fixedly connected with a rebound sponge block 9, which is arranged on the inner side of the mounting groove 43. One end of the rebound sponge block 9 is fixedly connected to the clamping block 45, and the rebound sponge block 9 is arranged on the inner side of the return spring 44.

[0039] Specifically, the pushing spring 72 can connect the second polyurethane rib 71 and enable the second polyurethane rib 71 to approach and adhere to the plug block 41, thereby reducing the friction between the plug block 41 and the inner housing 3, further improving the service life of the plug block 41 and the clamping effect during use by reducing wear;

[0040] In addition, the setting of the limiting slide plate 81 and the limiting groove 82 can play a certain role in limiting the movement of the second polyurethane rib 71, so that it can move smoothly and is not prone to bending or falling.

[0041] In addition, the rebound sponge block 9 can play a certain auxiliary pushing role in the reset of the block 45 through its own elasticity, and can also play a certain limiting role in the expansion and contraction of the reset spring 44, so that it is not easy to deform or bend when expanding and contracting.

[0042] The two limiting slide plates 81 are arranged up and down, and the upper side of the limiting slide plate 81 located on the upper side is in the same horizontal plane as the upper side of the second polyurethane rib 71. Figure 3-Figure 8 shown.

[0043] A rubber block 10 is fixedly connected to one side of the first polyurethane rib 47 . The rubber block 10 is disposed outside the clamping block 45 .

[0044] A negative pole magnet 53 is provided on the upper side of the inner shell 3, and a hollow groove 52 is provided on the inner side of the negative pole magnet 53. The hollow groove 52 is fixedly connected to the inner shell 3. A positive pole magnet 51 is fixedly connected to the inner side of the upper shell 2. The positive pole magnet 51 and the negative pole magnet 53 are magnetically attracted to each other.

[0045] Specifically, the limiting slide plate 81 on the upper side can further limit the second polyurethane rib 71, so that when the insert block 41 is inserted into the inner side of the slot 42, it is not easy to cause the upper side of the second polyurethane rib 71 to collapse, thereby increasing the service life of the second polyurethane rib 71. The rubber block 10 can fill the inner side of the limiting block 46 to a certain extent, thereby reducing the shaking of the clamping block 45 when it is engaged with the limiting block 46.

[0046] In addition, the magnetic attraction between the positive magnet 51 and the negative magnet 53 can further increase the stability of the upper shell 2 when closing the lower shell 1 , thereby preventing the hearing aid body 6 from falling out from the inner side of the inner shell 3 .

[0047] A charging box proposed by an embodiment of the utility model has the following working principle: when using this device, the hearing aid body 6 can be placed on the inner side of the inner shell 3, and the upper shell 2 is rotated after placement, so that the upper shell 2 drives the plug-in block 41 to move. When the plug-in block 41 is inserted into the inside of the slot 42, the inner shell 3 will squeeze the card block 45 to move it toward the inside of the installation groove 43. After that, the plug-in block 41 will continue to move downward due to the rotation of the slot 42. When the plug-in block 41 is fully inserted into the inner side of the slot 42, the reset spring 44 can use its own elasticity to drive the card block 45 to reset and be inserted into the inner side of the limit block 46.

[0048] When the plug block 41 is inserted into the inner side of the inner shell 3, the second polyurethane rib 71 will be able to block and protect the block 45 from being away from the plug block 41, reducing the friction between the inner shell 3 and the return spring 44, and when the block 45 is connected to the inner side of the limit block 46, the first polyurethane rib 47 can further reduce the friction and impact generated by the mutual connection between the block 45 and the limit block 46, thereby greatly increasing the service life of the block 45, and the second polyurethane rib 71 can also shield the outer side of the plug block 41, reducing the friction between the inner shell 3 and the plug block 41, so that the block 45 and the plug block 41 are not prone to being connected or unstable due to wear after long-term use.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A charging box, comprising a lower shell (1) and an upper shell (2), characterized in that: The upper side of the upper shell (2) and the lower shell (1) are movably hinged via a hinge; an inner shell (3) is provided on the inner side of the lower shell (1); a hearing aid body (6) is provided on the inner side of the inner shell (3); and a plug-in mechanism (4) is provided between the upper shell (2) and the inner shell (3); The plug-in mechanism (4) includes an insert block (41) fixedly connected to the inner side of the upper shell (2); a slot (42) is provided on the upper side of the inner shell (3); the insert block (41) is movably inserted into the inner side of the slot (42); a mounting slot (43) is provided on the outer side of the insert block (41); a return spring (44) is fixedly connected to the interior of the insert block (41); one end of the return spring (44) is fixedly connected to a clamping block (45); and the return spring (44) and the clamping block (45) are both arranged on the inner side of the mounting slot (43).

2. A charging box according to claim 1, characterized in that: The inner shell (3) is fixedly connected to a limit block (46), the limit block (46) is arranged on the inner side of the slot (42), the clamping block (45) is movably clamped on the inner side of the limit block (46), and a first polyurethane rib (47) is arranged on the inner side of the slot (42), the first polyurethane rib (47) is arranged on one side of the limit block (46), the first polyurethane rib (47) is arranged between the insert block (41) and the limit block (46), and the first polyurethane rib (47) is arranged on the outer side of the clamping block (45).

3. A charging box according to claim 2, characterized in that: A pushing spring (72) is provided on the inner side of the inner shell (3), and the pushing spring (72) is provided on the inner side of the slot (42). One end of the pushing spring (72) is fixedly connected to a second polyurethane rib (71), and the second polyurethane rib (71) is provided on the outer side of the insert block (41).

4. A charging box according to claim 3, characterized in that: A limiting groove (82) is provided on the inner side of the inner shell (3), and two limiting grooves (82) are provided. A side of the second polyurethane rib (71) away from the insert block (41) is fixedly connected to a limiting slide plate (81), and two limiting slide plates (81) are provided. The limiting slide plates (81) are slidably connected to the inner side of the limiting groove (82).

5. A charging box according to claim 4, characterized in that: A rebound sponge block (9) is fixedly connected to the interior of the insert block (41), the rebound sponge block (9) is arranged on the inner side of the mounting groove (43), one end of the rebound sponge block (9) is fixedly connected to the clamping block (45), and the rebound sponge block (9) is arranged on the inner side of the return spring (44).

6. A charging box according to claim 4, characterized in that: The two limiting slides (81) are arranged one above the other, and the upper side of the limiting slide (81) located on the upper side is in the same horizontal plane as the upper side of the second polyurethane rib (71).

7. A charging box according to claim 5, characterized in that: A rubber block (10) is fixedly connected to one side of the first polyurethane rib (47), and the rubber block (10) is arranged on the outside of the clamping block (45).

8. The charging box according to claim 2, characterized in that: A negative pole magnet (53) is provided on the upper side of the inner shell (3), a hollow groove (52) is provided on the inner side of the negative pole magnet (53), and the hollow groove (52) is fixedly connected to the inner shell (3). A positive pole magnet (51) is fixedly connected to the inner side of the upper shell (2), and the positive pole magnet (51) and the negative pole magnet (53) are magnetically attracted to each other.

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