Card limiting structure for card reader

Abstract

The utility model belongs to the technical field of card readers, and particularly relates to a card limiting structure for a card reader, which comprises a card reader main body, one end of the card reader main body is fixedly connected with a USB (universal serial bus) connector, the card reader main body further comprises a control chip, a crystal oscillator, a power supply circuit and an indicator light, the other end of the card reader main body is provided with a card slot, and the card slot is connected with the control chip. A protective cover is hinged to the side wall of the card reader body, and anti-falling assemblies are installed on the protective cover and the card reader body. The protective cover is covered, the clamping sleeve slides to the outside of the protective cover through the tension of the first spring to fix the protective cover, the protective cover is prevented from overturning, the clamping piece is limited through the protective cover, and the clamping piece can be effectively prevented from falling off from the interior of the clamping groove.

Description

Technical Field

[0001] The utility model relates to the technical field of card readers, in particular to a card limiting structure for a card reader. Background Art

[0002] A card reader is a card reading device. Since there are many types of cards, the meaning of a card reader covers a wide range. A card reader refers to an interface device used to read and write multimedia cards as mobile storage devices in a computer. Commercial versions of card readers can read security smart cards. Card readers are usually connected using USB and can access memory cards in a variety of formats. Compared with other methods, using a card reader can achieve a relatively high reading speed, and file access is not restricted by file type, and the plug-and-play method itself is much more convenient.

[0003] The currently used card readers are usually unable to better fix the card during use. When the device is hit during the reading process, it is easy to cause the card to fall off, affecting the reading process of the card reader, and the use is not convenient enough;

[0004] The currently used card readers are usually unable to more conveniently prevent dust from being applied to the USB connection during use. When the device is not in use, a large amount of dust is easily accumulated inside the USB interface, which affects the connection effect.

[0005] The existing Chinese patent with announcement number CN219105484U discloses a card reader with anti-card falling-off function, including a card reader body, a first fixed block, fixedly installed on the right side of the outer wall of the card reader body, a second fixed block, fixedly installed on the right side of the outer wall of the card reader body, a first spring, one end of which is fixedly connected to the bottom of the second fixed block and the other end extends downward, a second spring, one end of which is fixedly connected to the bottom of the first fixed block and the other end extends downward, the first spring and the extended ends of the second spring are fixedly connected with a pressure plate, and the card is fixed under the action of the spring to prevent the card from falling off. When in use, the pressure plate also has a dust-proof effect. The dust-proof mechanism includes: a hinge, fixedly installed on the outer wall of the card reader body, a dust cover, hinged on the hinge, a buckle, fixedly installed on the outer wall of the dust cover, and a card button, fixedly installed on the outer wall of the card reader body. The dust cover has a fixing effect by setting the buckle to be stuck on the card button.

[0006] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the card reader is connected to the device interface, the dust cover will increase the volume of the card reader when it is flipped over, and there is a probability that it will block the adjacent device interface, which needs to be improved; therefore, a card limit structure for a card reader is proposed to address the above problems. Utility Model Content

[0007] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a card limiting structure for a card reader.

[0008] The technical solution adopted by the utility model to solve its technical problems is: a card limiting structure for a card reader described in the utility model comprises a card reader body, one end of the card reader body is fixedly connected with a USB connector, the card reader body also comprises a control chip, a crystal oscillator, a power supply circuit, and an indicator light, the other end of the card reader body is provided with a card slot, the side wall of the card reader body is hinged with a protective cover, an anti-falling component is installed on the protective cover and the card reader body, the anti-falling component comprises a slide groove, the slide groove is arranged on the surface of the card reader body, the slide groove is slidably connected with a card sleeve, the inner wall of the slide groove is fixedly connected with a spring 1, the other end of the spring 1 is fixedly connected with the card sleeve, when installing the card, the card is inserted into the interior of the card slot, the protective cover is closed, the card sleeve slides to the outside of the protective cover through the tension of the spring 1 to fix the protective cover to prevent the protective cover from flipping, and the card is limited by the protective cover, which can effectively prevent the card from falling out of the card slot.

[0009] Preferably, the protective cover is L-shaped, and a certain gap is left between the rear end of the protective cover and the rear end of the card reader body to accommodate the area of ​​the card outside the card slot.

[0010] Preferably, the surface of the protective cover is protruded outward to form a groove, the interior of the groove is slidably connected with a baffle, and the baffle is made of ferromagnetic material.

[0011] Preferably, a plurality of tension springs are fixedly connected to the interior of the groove, and the other ends of the tension springs are fixedly connected to the baffle plate, and the baffle plate is received in the interior of the groove through the tension springs.

[0012] Preferably, the anti-drop assembly also includes a plurality of magnetic blocks, which are embedded in the rear end of the card reader body. When the protective cover is closed, the baffle slides outward by the suction force of the magnetic blocks, thereby blocking the card slot when the card is pulled out to achieve a dust-proof effect.

[0013] Preferably, a dustproof component is installed on the outside of the USB connector, and the dustproof component includes two upper and lower connecting grooves, and the connecting grooves are opened at the front end of the card reader body.

[0014] Preferably, a sliding plate is slidably connected to the inner wall of the connecting groove, a second spring is fixedly connected to the side of the sliding plate opposite to the inner wall of the connecting groove, and the sliding plate extends out of the connecting groove by the elastic force of the second spring.

[0015] Preferably, a storage groove is respectively provided on the opposite side of the two sliding plates, and a dustproof sheet is hinged inside the storage groove through a torsion spring shaft. The dustproof sheet is rotated to fit the USB connector through the torque of the torsion spring shaft to prevent dust from entering when idle. When the card reader body is connected to the device interface, the sliding plate first slides toward the inside of the connection groove against the device, and drives the dustproof sheet to rotate and be stored inside the storage groove, thereby opening the USB connector to achieve connection. When the USB connector is pulled out, the sliding plate extends out of the connection groove through the elastic force of spring 2, so that the dustproof sheet returns to its original position for protection.

[0016] The utility model is beneficial in that:

[0017] 1. The utility model closes the protective cover, and the card sleeve slides to the outside of the protective cover through the tension of spring 1 to fix the protective cover to prevent the protective cover from turning over. The protective cover limits the card, which can effectively prevent the card from falling out of the card slot.

[0018] 2. The dustproof sheet of the utility model rotates to fit the USB connector through the torque of the torsion spring shaft to prevent dust from entering when idle. When the card reader body is connected to the device interface, the sliding plate first slides toward the inside of the connecting slot against the device, and drives the dustproof sheet to rotate and be stored in the inside of the storage slot, thereby opening the USB connector to achieve connection. Compared with the prior art, it does not increase the space occupied by the card reader body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 Expand the structural diagram;

[0022] Figure 3 This is a schematic diagram of the expanded structure of the protective cover of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the ferrule of the utility model;

[0024] Figure 5 This is a schematic diagram of the expanded structure of the dustproof component of the utility model.

[0025] In the figure: 1. Card reader body; 2. USB connector; 3. Card slot; 4. Protective cover; 5. Anti-drop assembly; 51. Slide slot; 52. Card sleeve; 53. Spring 1; 54. Groove; 55. Baffle; 56. Tension spring; 57. Magnetic block; 6. Dustproof assembly; 61. Connecting slot; 62. Sliding plate; 63. Spring 2; 64. Storage slot; 65. Dustproof sheet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1-4 As shown, a card limiting structure for a card reader comprises a card reader body 1, one end of the card reader body 1 is fixedly connected with a USB connector 2, the card reader body 1 also comprises a control chip, a crystal oscillator, a power supply circuit, and an indicator light, a card slot 3 is arranged at the other end of the card reader body 1, a protective cover 4 is hingedly connected to the side wall of the card reader body 1, an anti-falling component 5 is installed on the protective cover 4 and the card reader body 1, the anti-falling component 5 comprises a slide groove 51, the slide groove 51 is arranged on the surface of the card reader body 1, a card sleeve 52 is slidably connected to the slide groove 51, a spring 53 is fixedly connected to the inner wall of the slide groove 51, and the other end of the spring 53 is fixedly connected to the card sleeve 52. When installing the card, the card is inserted into the interior of the card slot 3, and the protective cover 4 is covered. The card sleeve 52 slides to the outside of the protective cover 4 through the tension of the spring 53 to fix the protective cover 4 to prevent the protective cover 4 from turning over. By limiting the card by the protective cover 4, the card can be effectively prevented from falling out of the card slot 3.

[0029] The protective cover 4 is L-shaped, and a certain gap is left between the rear end of the protective cover 4 and the rear end of the card reader body 1 to accommodate the area of ​​the card outside the card slot 3 .

[0030] The surface of the protective cover 4 is protruded outward to form a groove 54, and a baffle 55 is slidably connected inside the groove 54. The baffle 55 is made of ferromagnetic material.

[0031] A plurality of tension springs 56 are fixedly connected inside the groove 54 . The other ends of the tension springs 56 are fixedly connected to the baffle 55 . The baffle 55 is received into the groove 54 through the tension springs 56 .

[0032] The anti-drop assembly 5 also includes a plurality of magnetic blocks 57, which are embedded in the rear end of the card reader body 1. When the protective cover 4 is closed, the baffle 55 slides outward by the suction force of the magnetic blocks 57, thereby blocking the card slot 3 when the card is pulled out to achieve a dust-proof effect.

[0033] Embodiment 2

[0034] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, a dustproof component 6 is installed outside the USB connector 2, and the dustproof component 6 includes two upper and lower connecting grooves 61, and the connecting groove 61 is opened at the front end of the card reader body 1.

[0035] A sliding plate 62 is slidably connected to the inner wall of the connecting groove 61 , and a second spring 63 is fixedly connected to the sliding plate 62 on the side opposite to the inner wall of the connecting groove 61 . The sliding plate 62 extends out of the connecting groove 61 by the elastic force of the second spring 63 .

[0036] A storage groove 64 is respectively provided on the opposite side of the two sliding plates 62, and a dustproof sheet 65 is hinged inside the storage groove 64 through a torsion spring shaft. The dustproof sheet 65 is rotated to fit the USB connector 2 through the torsion of the torsion spring shaft to prevent dust from entering when idle. When the card reader body 1 is connected to the device interface, the sliding plate 62 first slides toward the inside of the connecting groove 61 against the device, and drives the dustproof sheet 65 to rotate and be stored in the inside of the storage groove 64, thereby opening the USB connector 2 to achieve connection. When the USB connector 2 is pulled out, the sliding plate 62 extends out of the connecting groove 61 through the elastic force of the spring 2 63, so that the dustproof sheet 65 returns to its original position for protection.

[0037] It is worth noting that: since the components of the card reader body 1 in this solution are the same as those of the existing card reader, this solution does not describe all the existing components, but only describes some improved parts.

[0038] Working principle: when installing the card, insert the card into the card slot 3, cover the protective cover 4, and the card sleeve 52 slides to the outside of the protective cover 4 through the tension of the spring 53 to fix the protective cover 4 to prevent the protective cover 4 from turning over. The card is limited by the protective cover 4, which can effectively prevent the card from falling out of the card slot 3.

[0039] When the protective cover 4 is closed, the baffle 55 slides outwards due to the suction force of the magnetic block 57, thereby blocking the card slot 3 when the card is pulled out to achieve a dust-proof effect.

[0040] The dustproof sheet 65 is rotated to fit the USB connector 2 through the torsion force of the torsion spring shaft to prevent dust from entering when idle. When the card reader body 1 is connected to the device interface, the sliding plate 62 first slides toward the inside of the connecting slot 61 before resisting the device, and drives the dustproof sheet 65 to rotate and be stored in the inside of the storage slot 64, thereby opening the USB connector 2 to achieve connection. When the USB connector 2 is pulled out, the sliding plate 62 extends out of the connecting slot 61 through the elastic force of the spring 2 63, so that the dustproof sheet 65 returns to its original position for protection.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A card limit structure for a card reader, comprising a card reader body (1), one end of the card reader body (1) being fixedly connected to a USB connector (2), and the other end of the card reader body (1) being provided with a card slot (3), characterized in that: The side wall of the card reader body (1) is hinged with a protective cover (4), and an anti-falling component (5) is installed on the protective cover (4) and the card reader body (1). The anti-falling component (5) includes a slide groove (51), and the slide groove (51) is opened on the surface of the card reader body (1). The slide groove (51) is slidably connected with a card sleeve (52), and the inner wall of the slide groove (51) is fixedly connected with a spring 1 (53), and the other end of the spring 1 (53) is fixedly connected to the card sleeve (52).

2. The card limiting structure for a card reader according to claim 1, characterized in that: The protective cover (4) is configured to be L-shaped.

3. The card limiting structure for a card reader according to claim 1, characterized in that: The surface of the protective cover (4) is protruded outward to form a groove (54), and a baffle (55) is slidably connected inside the groove (54), and the baffle (55) is made of ferromagnetic material.

4. The card limiting structure for a card reader according to claim 3, characterized in that: A plurality of tension springs (56) are fixedly connected inside the groove (54), and the other end of the tension spring (56) is fixedly connected to the baffle (55).

5. The card limiting structure for a card reader according to claim 1, characterized in that: The anti-drop assembly (5) further comprises a plurality of magnetic blocks (57), wherein the magnetic blocks (57) are embedded and installed at the rear end of the card reader body (1).

6. The card limiting structure for a card reader according to claim 1, characterized in that: A dustproof component (6) is installed outside the USB connector (2), and the dustproof component (6) comprises two upper and lower connection slots (61). The connection slots (61) are arranged at the front end of the card reader body (1).

7. The card limiting structure for a card reader according to claim 6, characterized in that: The inner wall of the connecting groove (61) is slidably connected to a sliding plate (62), and a second spring (63) is fixedly connected to the side of the sliding plate (62) opposite to the inner wall of the connecting groove (61).

8. The card limiting structure for a card reader according to claim 7, characterized in that: A receiving groove (64) is respectively provided on one opposite side of the two sliding plates (62), and a dustproof sheet (65) is hingedly connected inside the receiving groove (64) via a torsion spring rotating shaft.

Images