Card insertion device and terminal

Abstract

The present invention provides a card insertion device and a terminal, the card insertion device comprising a base 1, a card tray 8 and a limiting device 0 for limiting the card tray 8, wherein the base 1 is provided with an ejection component 7 for ejecting the card tray 8, the limiting device 0 is provided with a first limiting component 402 matching with a first stop component 801 on the card tray 8, and the first limiting component 402 is used to lock or release the first stop component 801. Through the present invention, a user can easily take out a card without using any tools, while avoiding opening a hole on the card tray panel, and can effectively prevent waterproofing and light leakage.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a card insertion device and a terminal. Background Art

[0002] In the related art, in order to reduce the thickness of the whole device, smart phones use a drawer-type card tray. However, most current drawer-type card trays use a needle-poke card removal design, such as Figure 1 and Figure 2 As shown, the user needs to use a slender poking pin to vertically insert it into the small hole on the card tray, use the poking pin to push the ejector rod and eject the card tray through the lever transmission mechanism.

[0003] However, although the drawer-type card tray has a great effect on reducing the thickness of the entire device, the design that requires a poking pin to remove the card tray has many disadvantages, such as A. The card tray cannot be removed without a poking pin or the poking pin is of an inappropriate size, resulting in the user being unable to replace the SIM card and TF card; B. When using a poking pin to remove the card, it needs to be inserted vertically. If the tilt angle is too large or too much force is used, the poking pin may be inserted into the gap between the ejector and the card holder or the ejector may be directly damaged, resulting in the inability to remove the card, and the reliability is not high; C. The poking pin is very small and inconvenient to carry around, and there is a safety risk at the tip. D. The card tray that uses a poking pin to remove the card must have a small hole for the poking pin to insert, which is not conducive to waterproofing and preventing light leakage, and also affects the overall appearance. Summary of the invention

[0004] The embodiment of the present invention provides a card insertion device and a terminal, so as to at least solve the problem in the related art that a drawer-type card tray must be taken out by using a poking needle.

[0005] According to one embodiment of the present invention, a card insertion device is provided, characterized in that it comprises: a base (1), a card tray (8) and a limiting device (0) for limiting the position of the card tray (8), wherein the base (1) is provided with an ejection component (7) for ejecting the card tray (8), and the limiting device (0) is provided with a first limiting component (402) matching with a first stop component (801) on the card tray (8), and the first limiting component (402) is used to lock or release the first stop component (801).

[0006] Optionally, the first stop component (801) is configured as a groove, and the first limiting component (402) is configured as a convex bump, wherein the first limiting component (402) is used to lock the card tray (8) when the card tray (8) is located in the card slot (105) on the base (1), and when the ejection component (7) pops out the card tray (8), the first limiting component (402) is disengaged from the card tray (8) through the limiting device (0), so that the ejection component (7) pops the card tray (8) out of the card slot (105).

[0007] Optionally, the limiting device (0) comprises: a connecting rod (2), a second stop assembly (3), a stop slider (4), a linkage assembly (5), and a linkage slider (6); wherein, one end of the connecting rod (2) is fixedly connected to the linkage slider (6), and the other end of the connecting rod (2) is provided with a second limiting assembly (201) for locking the stop slider (4); one end of the second stop assembly (3) is fixedly connected to the base (1), and the other end is fixedly connected to the stop slider (4); one end of the linkage assembly (5) is fixedly connected to the base (1), and the other end is fixedly connected to the linkage slider (6).

[0008] Optionally, the base (1) is provided with a slider limiting rib (101) and a slider limiting rib (102), wherein the slider limiting rib (101) and the slider limiting rib (102) form a sliding guide groove to limit the movement of the stop slider (4).

[0009] Optionally, the second stop assembly (3), the linkage assembly (5) and / or the ejection assembly (7) are configured as springs, wherein the elastic coefficients of the second stop assembly (3) and the linkage assembly (5) are smaller than the elastic coefficient of the ejection assembly (7).

[0010] Optionally, the second limiting component (201) is configured to be hook-shaped, and when the card tray (8) is pressed until it contacts the third limiting component (104) on the base (1), the card tray (8) pushes the stop slider (4) to move to the right, so that the second limiting component (201) locks the stop slider (4).

[0011] Optionally, the base (1) is a plastic base or a metal base.

[0012] Optionally, the connecting rod (2) is a plastic connecting rod or a metal connecting rod; the stop slider (4) is a plastic stop slider or a metal stop slider; and the linkage slider (6) is a plastic linkage slider or a metal linkage slider.

[0013] According to another embodiment of the present invention, a terminal includes the card insertion device described in any one of the above embodiments.

[0014] According to the present invention, the card insertion device includes a base 1, a card tray 8 and a limiting device 0 for limiting the card tray 8, wherein the base 1 is provided with an ejection assembly 7 for ejecting the card tray 8, and the limiting device 0 is provided with a first limiting assembly 402 matching the first stop assembly 801 on the card tray 8, and the first limiting assembly 402 is used to lock or release the first stop assembly 801. By pressing the card tray 8, the ejection assembly 7 generates a rebound force after receiving the pressure of the card tray 8, and the card tray 8 is ejected by the generated rebound force, and the card can be taken out without using a poking needle, so that the user can easily take out the card without using any tools, and at the same time avoid opening a hole on the card tray panel, which can effectively prevent waterproofing and light leakage, and is also more conducive to the overall aesthetic appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a structural diagram of a drawer-type card tray in a locked state in the related art;

[0017] Figure 2 It is a structural diagram of a card tray pop-up state of a drawer-type card tray in the related art;

[0018] Figure 3 is a structural diagram of a card insertion device according to an embodiment of the present invention;

[0019] Figure 4 is a structural diagram of a position limiting device 0 in a card insertion device according to an embodiment of the present invention;

[0020] Figure 5 is a structural diagram of a connecting rod 2 in a limiting device 0 according to an embodiment of the present invention;

[0021] Figure 6 is a partially enlarged structural diagram of a position limiting device 0 according to an embodiment of the present invention;

[0022] Figure 7 Schematic diagram of a card tray being disengaged from a card slot according to an embodiment of the present invention Figure 1 ;

[0023] Figure 8 Schematic diagram of a card tray being disengaged from a card slot according to an embodiment of the present invention Figure 2 ;

[0024] Fig. 9Schematic diagram of a card tray being disengaged from a card slot according to an embodiment of the present invention Figure 3 ;

[0025] Fig.10 The structure of inserting a card tray according to an embodiment of the present invention Figure 1 ;

[0026] Fig.11 The structure of the connecting rod 2 and the stop block 4 inserted into the card holder according to the embodiment of the present invention is partially enlarged. Figure 1 ;

[0027] Fig.12 The structure of inserting a card tray according to an embodiment of the present invention Figure 2 ;

[0028] Fig.13 The structure of the connecting rod 2 and the stop block 4 inserted into the card holder according to the embodiment of the present invention is partially enlarged. Figure 2 ;

[0029] Fig.14 The structure of inserting a card tray according to an embodiment of the present invention Figure 3 ;

[0030] Fig.15 The structure of inserting a card tray according to an embodiment of the present invention Figure 4 ;

[0031] Fig.16 The structure of inserting a card tray according to an embodiment of the present invention Figure 5 ;

[0032] Fig.17 The card tray ejection structure according to an embodiment of the present invention Figure 1 ;

[0033] Fig.18 The structure of the connecting rod 2 and the stop block 4 for ejecting the card tray according to the embodiment of the present invention is partially enlarged. Figure 1 ;

[0034] Fig.19 The card tray ejection structure according to an embodiment of the present invention Figure 2 ;

[0035] Fig. 20 The card tray ejection structure according to an embodiment of the present invention Figure 3 ;

[0036] Fig.21 The structure of the connecting rod 2 and the stop block 4 for ejecting the card tray according to the embodiment of the present invention is partially enlarged. Figure 2 ;

[0037] Fig. 22 is a structural block diagram of a terminal according to an embodiment of the present invention;

[0038] Fig.23 4 is an operation flow chart of a push-type card tray according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0041] Example 1

[0042] In this embodiment, a card insertion device is provided. Figure 3 is a structural diagram of a card insertion device according to an embodiment of the present invention. Figure 3 As shown, the device includes: the card insertion device includes a base 1, a card tray 8 and a limiting device 0 for limiting the card tray 8, wherein the base 1 is provided with an ejection component 7 for ejecting the card tray 8, and the limiting device 0 is provided with a first limiting component 402 matching the first stop component 801 on the card tray 8, and the first limiting component 402 is used to lock or release the first stop component 801.

[0043] Through the above structure, by pressing the card tray 8, the ejection component 7 generates a rebound force after being subjected to the pressure of the card tray 8, and the card tray 8 is ejected by utilizing the generated rebound force, and the card can be taken out without using a poking needle, so that the user can easily take out the card without using any tools, and at the same time avoids opening a hole on the card tray panel, which can effectively prevent waterproofing and light leakage, and is also more conducive to the overall aesthetic appearance.

[0044] Optionally, the first stop component 801 is configured as a groove (for example, a card tray stop groove), and the first limiting component 402 is configured as a convex bump (for example, a card tray stop convex bump), wherein the first limiting component 402 is used to lock the card tray 8 when the card tray 8 is located in the slot 105 on the base 1, and when the ejection component 7 pops out the card tray 8, the first limiting component 402 is disengaged from the card tray 8 through the limiting device 0, so that the ejection component 7 pops the card tray 8 out of the slot 105.

[0045] Through the above structure, since the limiting device 0 is provided with a first limiting component 402 that matches the first stopping component 801 on the card tray 8, the card tray 8 can also be reliably locked, and since the first stopping component 801 is set as a groove and the first limiting component 402 is set as a convex bump, the card tray 8 and the limiting device 0 do not need to have severe friction during the relative movement and locking process. Therefore, the life of the card insertion device can be effectively extended, and the problems existing in the card holder products on the market that use stainless steel springs to tighten the card tray groove from one side or both sides to lock the card tray can also be solved. For example, A. Since the tightening force generated by the spring pressing the card tray is limited, the card tray is easy to fall out of the card slot during the whole machine falling or shaking violently; B. Since the spring presses the card tray, when the card tray is installed and ejected, the spring needs to be squeezed into the card tray groove, and severe friction occurs during the relative movement between the spring and the side of the card tray, which may cause corresponding wear to the powder metallurgy card tray and the stainless steel spring, seriously shortening the life of the card tray.

[0046] Optionally, the first stop component 801 is set as a groove, and the first limiting component 402 is set as a convex bump, wherein the first limiting component 402 is used to lock the card tray 8 when the card tray 8 is located in the card slot 105 on the base 1, and when the ejection component 7 pops out the card tray 8, the first limiting component 402 is disengaged from the card tray 8 through the limiting device 0, so that the ejection component 7 pops the card tray 8 out of the card slot 105.

[0047] For example, one end of the ejector assembly 7 can be connected to the base 1 by means of interference fit of a positioning column, and the other end can be in a free state, so that when subjected to the pressure of the card tray 8, a rebound force is generated to eject the card tray 8. The card tray 8 can be made in one piece by a powder metallurgy method, or can be made of stainless steel and connected to the card tray panel by spot welding or snap locking.

[0048] Alternatively, if Figure 4As shown, the above-mentioned limiting device 0 includes: a connecting rod 2, a second stop assembly 3, a stop slider 4, a linkage assembly 5, and a linkage slider 6; wherein, one end of the connecting rod 2 is fixedly connected to the linkage slider 6, and the other end of the connecting rod 2 is provided with a second limiting assembly 201 for locking the stop slider 4; one end of the second stop assembly 3 is fixedly connected to the base 1, and the other end is fixedly connected to the stop slider 4; one end of the linkage assembly 5 is fixedly connected to the base 1, and the other end is fixedly connected to the linkage slider 6. Optionally, the above-mentioned fixed connection method can be multiple, for example, it can include at least one of the following: the method of interference fixing of the positioning column in the positioning hole; the method of bolts and nuts; the method of welding. Optionally, the second stop assembly 3, the linkage assembly 5 and / or the ejection assembly 7 can be set as a spring, for example, it can be a double spring design, and it can also be changed to a single spring or a multi-spring (three or more) design according to different product needs.

[0049] For example, Figure 5 As shown, the connecting rod 2 can be divided into five parts: a second limiting component 201 (for example, a positioning hook of a stop slider), a head connecting bridge 202, a positioning ring 203, a tail connecting bridge 204, and a linkage slider positioning column 205. Figure 6 As shown, the following takes the second limit component 201 as the stop slider positioning hook, the second stop component 3 as the stop spring, and the linkage component 6 as the linkage spring as an example to explain the above five parts respectively.

[0050] The stop slider positioning hook 201 is hook-shaped and is used to lock the stop slider 4; the head connecting bridge 202 spans over the stop spring 3, and the connecting rod 2 and the stop spring 3 move independently without interfering with each other; the positioning ring 203 passes through the connecting rod positioning column 103 on the base 1, so that the connecting rod 2 can rotate around the connecting rod positioning column 103; the tail connecting bridge 204 of the connecting rod 2 spans over the slider limiting rib 101; the linkage slider positioning column 205 passes through the positioning hole 601 on the linkage slider 6, and when the linkage slider 6 moves, the connecting rod 2 will rotate around the connecting rod positioning column 103 accordingly.

[0051] One end of the stop spring 3 can be connected to the base 1 by means of interference fit of a positioning column, and the other end can also be connected to the stop slider 4 by means of interference fit of a positioning column.

[0052] One end of the linkage spring 5 can be connected to the base 1 by means of interference fit of a positioning column, and the other end can also be connected to the linkage slider 6 by means of interference fit of a positioning column.

[0053] Alternatively, if Figure 6As shown, the above-mentioned card insertion device also includes that the base 1 is provided with a slider limiting rib 101 and a slider limiting rib 102, wherein the slider limiting rib 101 and the slider limiting rib 102 form a sliding guide groove to limit the movement of the stop slider 4, that is, the stop slider 4 drives the second stop component 3 to only perform linear reciprocating motion in the guide groove formed by the two limiting ribs.

[0054] With the above structure, even if Figure 7 In the situation shown in the figure, that is, when the whole machine falls or shakes violently, the card tray will tend to fall out of the card slot 105 (i.e., along the Figure 7 However, due to the restriction of the two limiting ribs, the slider limiting rib 101 and the slider limiting rib 102 on the base 1, the stop slider 4 can only move in the horizontal direction. Therefore, the first limiting component 402 does not need to generate a pressing force on the first stop component 801 to achieve reliable locking of the card tray 8.

[0055] Optionally, the second limiting component 201 is configured to be hook-shaped, and when the card tray 8 is pressed to contact the third limiting component 104 on the base 1, the card tray 8 pushes the stop slider 4 to move rightward, so that the second limiting component 201 locks the stop slider 4. Figure 7 As shown, the first stop component 402 and the first limiting component 801 at the head of the stop slider 4 can be designed in the shape of male and female buckles. In the case where the first stop component 402 is a card tray stop convex bump and the first limiting component 801 on the side of the card tray 8 is a card tray stop groove, when the card tray stop convex bump 402 at the head of the stop slider 4 is embedded in the card tray stop groove 801 on the side of the card tray 8, the card tray 8 is locked. When the card tray 8 needs to be ejected, the card tray 8 cooperates with the slider inclined surface 403 of the stop slider 4 through the card tray bevel 803, and the slider inclined surface 403 is generated as shown in FIG. Figure 8 The thrust force is shown in the oblique upper right direction, and the stop slider 4 moves rightward, compressing the stop spring 3, and the card tray stop convex 402 gradually separates from the card tray stop groove 801, ensuring that the card tray 8 is not hindered by the card tray stop convex 402 when it pops out.

[0056] Alternatively, if Fig. 9As shown, in the embodiment of the present invention, in the case where the second stop assembly 3 is, the linkage assembly 5 is a linkage spring 5, and the ejection assembly 7 is an ejection spring, when the stop spring 3 and the linkage spring 5 do not need to generate a pressing force on the side wall of the tray 8, but only need to reset the two sliders when the stop slider 4 and the linkage slider 6 are not subjected to the squeezing force of the tray 8, therefore, in the embodiment of the present invention, the stop spring 3 and the linkage spring 5 use springs with a smaller elastic coefficient, that is, only need to generate a small rebound force when compressed. For example, the elastic coefficient of the stop spring 3 and the linkage spring 5 can be smaller than the elastic coefficient of the ejection spring 7. Through the above structure, when the tray 8 contacts the stop slider 4 and the linkage slider 6 and moves relative to each other, the side wall of the tray 8, the tray stop convex bump 402 on the head of the stop slider 4, and the side wall of the linkage slider 6 are almost not worn, so the service life of the tray can be effectively extended.

[0057] Optionally, the base 1 is a plastic base or a metal base; the connecting rod 2 is a plastic connecting rod or a metal connecting rod; the stop slider 4 is a plastic stop slider or a metal stop slider; and the linkage slider 6 is a plastic linkage slider or a metal linkage slider.

[0058] Optionally, the card insertion device can be applied to a three-in-one card socket, and can also be applied to a single SIM card socket, a single TF card socket, and various two-in-one card sockets.

[0059] Optionally, the connecting rod, the stop spring, the stop slider, the linkage spring and the linkage slider in the embodiment of the present invention may also be designed symmetrically.

[0060] To facilitate understanding of the embodiments of the present invention, the states of the limit device 0 during the insertion of the card tray 8 and the states of the limit device 0 during the ejection of the card tray 8 are described below, respectively. In this embodiment, the second limit component 201 is a stop slider positioning hook, the second stop component 3 is a stop spring, and the linkage component 6 is a linkage spring as an example.

[0061] (1) During the insertion process of the tray 8, the limiting device 0 has the following states:

[0062] State 1: The card tray 8 has just been inserted into the card slot 105, but has not yet contacted the linkage slider 6. Fig.10 As shown, the mechanisms in the limit device 0 are not triggered. The stop slider positioning hook 201 on the connecting rod 2 is at a position away from the slider positioning groove 401 on the stop slider 4, as shown in FIG. Fig.11 All springs are shown in the uncompressed state.

[0063] State 2: Continue to insert the card tray 8. When the card tray 8 has contacted and squeezed the linkage slider 6 but has not yet contacted the stop slider 4, the state is as follows: Fig.12 As shown. The card holder 8 pushes the linkage slider 6 along Fig.12The connecting rod 2 moves in the direction indicated by the middle arrow, and the linkage spring 5 is compressed. Driven by the linkage slider 6, the connecting rod 2 rotates around the connecting rod positioning column 103 on the plastic base 1, so that the stop slider positioning hook 201 on the connecting rod 2 is close to the slider positioning groove 401 on the stop slider 4, that is, the waiting locking position. Fig.13 shown.

[0064] State three, the card tray 8 is further inserted, and when the side wall of the card tray 8 contacts the card tray stop convex bump 402 at the head of the stop slider 4, the card tray 8 will push the stop slider 4 along the Fig.14 Move back slightly in the direction indicated by the middle arrow, and at the same time make the stop spring 3 slightly compressed, the state is as follows Fig.14 At this time, the card tray stop groove 801 on the card tray 8 has not yet contacted the card tray stop convex bump 402 on the head of the stop slide block 4.

[0065] State 4: When the card tray 8 is pushed until the card tray panel 802 is flush with the side wall 9 of the whole machine, Fig.15 As shown in FIG. 1 , the card holder stop convex bump 402 on the head of the stop slider 4 is just embedded in the card holder stop groove 801 of the card holder 8, as shown in FIG. Fig.16 As shown, the stop spring 3 rebounds slightly. At this time, the card holder 8 is locked by the card holder stop convex bump 402 on the head of the stop slide block 4, and the card holder is loaded and the card is recognized normally.

[0066] (2) During the insertion process of the tray 8, the limiting device 0 has the following states:

[0067] State 1: When the card tray 8 needs to be ejected, the card tray panel 802 is pressed inward, and the card tray 8 compresses the ejection spring 7 inward, so that the ejection spring 7 generates a rebound force; at the same time, the card tray 8 cooperates with the slider slope 403 of the stop slider 4 through the card tray bevel 803, and the slider slope 403 generates a rebound force. Fig.17 The thrust in the oblique upper right direction as shown by the arrow causes the stop slider 4 to move rightward, compressing the stop spring 3 , and the card holder stop convex bump 402 gradually disengages from the card holder stop groove 801 .

[0068] When the card tray panel 802 is pressed until the card tray bottom surface 804 contacts the card tray stop rib 104 erected on the plastic base 1, the card tray 8 stops moving. Fig.17 At this time, the stop slider positioning hook 201 on the connecting rod 2 is just inserted into the slider positioning groove 401 on the stop slider 4, locking the stop slider 4, and the state is as shown in FIG. Fig.18 shown.

[0069] In state 2, the card tray 8 is already in an unlocked state. At this time, the card tray 8 is released, and the rebound force of the ejection spring 7 will eject the card tray 8 out of the card slot 105. The process of ejecting the card tray 8 is divided into two stages:

[0070] 1) When the card tray 8 is only partially ejected, the linkage slider 6 and the linkage spring 5 are still in a compressed state, the stop slider 4 is locked by the connecting rod 2, and the stop spring 3 is also in a compressed state. Fig.19 shown.

[0071] 2) Until the card tray 8 is completely ejected from the card slot 105, the linkage slider 6 and the linkage spring 5 are extended to restore the initial state, and the linkage slider 6 drives the connecting rod 2 to follow the Fig. 20 The connecting rod 2 rotates in the direction indicated by the middle arrow, and the stop slider positioning hook 201 of the connecting rod 2 withdraws from the slider positioning groove 401 of the stop slider 4. Fig.21 As shown, the stop slider 4 is pushed by the rebound force of the stop spring 3 to restore the initial state.

[0072] In this embodiment, a terminal is also provided. Fig. 22 is a structural block diagram of a terminal according to an embodiment of the present invention, such as Fig. 22 As shown, the terminal includes any card insertion device in the above embodiments.

[0073] Fig.23 is an operation flow chart of a push-type card tray according to an embodiment of the present invention, such as Fig.23 As shown, the process includes:

[0074] Step S2302: inserting the card tray containing the SIM card (or TF card) into the card slot 105;

[0075] Step S2304: Push the card tray to a locked position;

[0076] Step S2306: normal card recognition;

[0077] Step S2308: When the card needs to be removed, press the card tray panel again and then release it;

[0078] Step S2310: The card tray is automatically ejected from the card slot 105 by a certain length, so that the user can directly take out the card tray.

[0079] The embodiment of the present invention is simple and practical, and can be applied to smart phones, as well as to all smart electronic devices such as tablets and micro projectors that use SIM cards or TF cards. The card insertion device in the embodiment of the present invention includes a base 1, a connecting rod 2, a stop spring 3, a stop slider 4, a linkage spring 5, a linkage slider 6, an ejection spring 7, and a card tray 8. After the card tray 8 is inserted into the card slot 105 to a certain position, the card tray 8 is locked; when pressed again, the card tray 8 will pop out of the card slot 105, allowing the user to easily remove the card tray without using any tools. At the same time, due to the special design of the stop slider 4 and the card tray stop groove 801, the card tray can be reliably locked, and the card tray and the stop slider do not need to have severe friction during the relative movement and locking process, so the life of the card tray can be effectively extended. Most of the current electronic devices such as smart phones, tablets, and micro projectors use a needle-type card removal design, which is inconvenient to remove the card. If the embodiment of the present invention is used for replacement, this problem can be well solved, and thus has a broad market potential.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A card insertion device, characterized in that: include: A base (1), a card tray (8), and a limiting device (0) for limiting the position of the card tray (8), wherein the base (1) is provided with an ejection component (7) for ejecting the card tray (8), and the limiting device (0) is provided with a first limiting component (402) matching with a first stop component (801) on the card tray (8), and the first limiting component (402) is used to lock or release the first stop component (801), wherein: The limiting device (0) comprises: a connecting rod (2), a second stop assembly (3), a stop slider (4), a linkage assembly (5), and a linkage slider (6); One end of the connecting rod (2) is fixedly connected to the linkage slider (6), and the other end of the connecting rod (2) is provided with a second limiting component (201) for locking the stop slider (4); One end of the second stop assembly (3) is fixedly connected to the base (1), and the other end is fixedly connected to the stop slider (4); One end of the linkage component (5) is fixedly connected to the base (1), and the other end is fixedly connected to the linkage slider (6), wherein, when the card tray (8) is inserted and the card tray (8) has contacted and pressed the linkage slider (6), the connecting rod (2) rotates around the connecting rod positioning column (103) on the base (1) under the drive of the linkage slider (6).

2. The card insertion device according to claim 1, characterized in that: The first stop component (801) is configured as a groove, and the first limiting component (402) is configured as a convex bump, wherein the first limiting component (402) is used to lock the card tray (8) when the card tray (8) is located in the card slot (105) on the base (1), and when the ejection component (7) pops out the card tray (8), the first limiting component (402) is disengaged from the card tray (8) through the linkage of the limiting device (0), so that the ejection component (7) pops the card tray (8) out of the card slot (105).

3. The card insertion device according to claim 1, characterized in that: Also includes, The base (1) is provided with a slider limiting rib (101) and a slider limiting rib (102), wherein the slider limiting rib (101) and the slider limiting rib (102) form a sliding guide groove to limit the movement of the stop slider (4).

4. The card insertion device according to claim 1, characterized in that: Also includes: The second stop assembly (3), the linkage assembly (5) and / or the ejection assembly (7) are configured as springs, wherein the elastic coefficients of the second stop assembly (3) and the linkage assembly (5) are smaller than the elastic coefficient of the ejection assembly (7).

5. The card insertion device according to claim 1, characterized in that: The second limiting component (201) is configured to be hook-shaped, and when the card tray (8) is pressed until it contacts the third limiting component (104) on the base (1), the card tray (8) pushes the stop slider (4) to move rightward, so that the second limiting component (201) locks the stop slider (4).

6. The card insertion device according to any one of claims 1 to 5, characterized in that: The base (1) is a plastic base or a metal base.

7. The card insertion device according to any one of claims 1, 3 to 5, characterized in that: The connecting rod (2) is a plastic connecting rod or a metal connecting rod; the stop slider (4) is a plastic stop slider or a metal stop slider; and the linkage slider (6) is a plastic linkage slider or a metal linkage slider.

8. A terminal, characterized in that: A card insertion device comprising any one of claims 1 to 7.

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