CN2809957Y - Connector advance and retreat card device - Google Patents

Abstract

A connector card feeding and discharging device is characterized in that: a base is provided with a rail seat in a sliding fit manner, an elastic element is arranged between the rail seat and the base, and the elastic element applies acting force away from the base to the rail seat; the track seat is also provided with a convex block with a one-way inclined plane, and the base is provided with a spring hook; when the rail seat is completely moved into the base, the spring hook is buckled with the convex block; the base is also provided with a push rod in a sliding fit manner, the push rod is connected with the base through a memory telescopic wire, the memory telescopic wire is electrically connected with a circuit arranged on the base, the memory telescopic wire is shortened after the circuit is introduced with single pulse current, the push rod is further pulled to push the spring hook, the spring hook is separated from buckling on the convex block, and the track seat is popped out of the inner end of the base through an elastic element; the user can also manually operate the push rod to eject the rail seat from the inner end of the base.

Description

Connector advance and retreat card device

technical field

The utility model relates to an advance and retreat card device for a memory card or an adapter card arranged on a computer mainframe or peripheral equipment.

Background technique

Generally, the method of expanding computer functions in an external form is mostly to insert cards such as memory cards, network cards, and adapter cards into the connector slots of the computer host or independent peripheral equipment, so as to be electrically connected to the motherboard. Get the functionality you want. Conventionally, there are two ways for the card to enter and exit the connector:

The first type is a direct plug-in type; that is, the user directly forces the card into the connector slot to be electrically connected to the terminal; when returning the card, the card is also directly forced to be pulled out. In this method, the card must be held with fingers and then pulled out when withdrawing the card. Therefore, after the card is inserted into the connector, a part of the length must still be reserved outside the connector. If the card is touched, the electronic data stored in the card will be lost or even damaged.

The second type is the spring type; that is, the user directly forces the card into the connector slot to be electrically connected to the terminal, and the card is positioned by the mechanism inside the connector; when the card is pressed again, the The card is ejected from the connector by the spring device inside the connector, so that the user can pull out the card. Although this way has greatly reduced the exposed length after the card is inserted into the connector, it is more laborious when pressing the card to advance and retreat the card.

Contents of the invention

The utility model aims to provide a card advance and retreat mechanism of the known connector that can simultaneously solve the problem that the exposed length of the card is too large after the card is inserted into the connector, or that it is laborious to press the card to advance and retreat the card.

The main purpose of this utility model is to provide a way to insert the card directly into the connector slot, and when the card is withdrawn from the connector, it is completed through the control method of the electronic cooperation mechanism, so that the card will not be exposed when inserted into the connector. The outside, and the button used to control the ejection of the card can be designed to be close to the plane, so as to avoid the problem of forcibly ejecting the card due to accidentally touching the card or the button during use, resulting in the loss or damage of the data on the card.

Based on this, the first technical means of the present utility model is to set a track seat on a base in a sliding fit, an elastic element is arranged between the track seat and the base, and the elastic element exerts a force on the track seat to make the The track seat leaves the inner end of the base.

The second technical means of the present utility model is to provide a fastening structure between the base and the track seat; the track seat provides accommodating elements for card insertion, and the card directly pushes the track seat into the base, when the track seat When fully entering the base, the track seat is positioned by the fastening structure.

The third technical means of the present utility model is to set a push rod in the base, and use a memory telescopic wire to connect the push rod and the track seat; the memory telescopic wire is electrically connected to the circuit provided on the base, and the After the single-pulse current is input, the memory telescopic line is shortened, and then the fastening structure is released from the positioning of the track seat, and then the track is pushed out of the inner end of the base through the elastic element.

The fourth technical means of the present invention is to allow the user to manually operate the push rod to withdraw the track seat from the inner end of the base.

The fifth technical means of the present utility model is to provide a spring hook provided on the base, cooperate with a protrusion provided on the track seat to jointly form a fastening structure for positioning the track seat; when the track seat completely enters the base, The track seat is positioned by the hook portion of the snap hook buckling the protrusion.

The sixth technical means of the present utility model is to set a cam part on the spring hook; when the push rod is pulled by the memory telescopic wire or pushed manually, the spring hook is separated from the track seat by pushing the cam part through the push rod. The buckling of the protrusions makes the track seat pop out from the inner end of the base under the action of the elastic element.

In summary, the utility model is characterized in that it combines electronic and mechanical control methods to control the withdrawal of the card from the connector. Therefore, it can be designed to allow the card to fully enter the connector without being exposed, and is used to control the withdrawal of the card. The button of the card can also be designed to be close to the plane shape, so as to avoid the problem of data loss or damage caused by the forced withdrawal of the card or button when the card or button is accidentally touched during use.

Description of drawings

Fig. 1 is a three-dimensional exploded view showing the combination relationship of the main components of the utility model.

Fig. 2 is a top plan view showing the structure of the utility model, and the state before the card is inserted.

Fig. 3 shows the state in which the track seat shown in Fig. 2 has been inserted into the card, but the track seat has not been positioned yet.

Fig. 4 shows the state in which the inner end of the track seat in the state shown in Fig. 3 has been displaced to be close to the bottom of the base, and has not yet been positioned.

Fig. 5 shows the state when the inner end of the track seat in the state shown in Fig. 4 is displaced to the bottom of the base, so that the track seat is positioned by the spring hook.

Fig. 6 shows the state in which the push rod in the state shown in Fig. 5 pushes the spring hook, so that the hook is disengaged from the state of being engaged with the projection of the track seat.

Fig. 7 shows the state in which the spring hook returns to its original position when the track seat in the state shown in Fig. 6 is moved out toward the outer end of the base.

in the picture

1 base 11 side wall

111 protruding parts 12 track grooves

121 flat plate 13 grooves

131 card slot 14 bosses

15 recessed hole 16 upper plate

161 poles 162 holes

17 lower boards 171 holes

18 elastic element 19 positioning column

2 track seat 21 track body

22 bumps 221 slopes

23 Card rail slot 231 Bottom

3 spring hooks 31 clamping columns

32 hook part 33 cam part

4 push rod 41 pressing part

42 groove 43 extension part

5 memory expansion line 6 cards

Detailed ways

The implementation of the present utility model will be described in more detail below in conjunction with the drawings and component reference numbers.

FIG. 1 is a three-dimensional exploded view showing the combination of the main components of the utility model; the figure reveals that the utility model includes a base 1 , a track seat 2 , a spring hook 3 and a push rod 4 . Wherein, the base 1 has side walls 11 located on opposite sides, and the upper and lower sides of the side walls 11 have a plurality of protrusions 14 and concave holes 15; A flat plate 121 extending to the inner end of the base 1 ; at least one side wall 11 is provided with a groove 13 and a locking groove 131 connected to the groove 13 . An upper plate 16 and a lower plate 17 are respectively covered on the upper and lower sides of the base 1, and the lower surface of the upper plate 16 and the upper surface of the lower plate 17 are provided with holes 162 and 171 corresponding to the protrusions 14, and holes 162 and 171 corresponding to the concave holes. The post 161 of 15 fixes the upper and lower plates 16, 17 to the base 1 through the cooperation of the protruding post 14 and the holes 162, 171, and the cooperation of the post 161 and the concave hole 15. A circuit board (not shown in the figure) required by the connector can be arranged on the lower board 17 . A plurality of positioning columns 19 are arranged on the inner end surface of the base 1 , and an elastic element 18 is sheathed on each positioning column 19 . A protruding part 111 is arranged on the outside of the side wall 11 of the base 1, and one end of a memory stretching line 5 is fixedly connected to the protruding part 111; the memory stretching line 5 can be a wire made of a nickel-titanium alloy material; its characteristic is When a single pulse current is applied to the memory stretchable wire, the length of the memory stretchable wire can be shortened.

The spring clasp 3 is preferably formed with a spring steel sheet to have a hook portion 32 at one end, and the other end has a clamp post 31 corresponding to the draw groove 131; and a cam portion 33 is set on the side of the spring clasp 3; After the post 31 is inserted into the slot 131 , the spring hook 3 is fixed on the base 1 , and the free end of the hook portion 32 is formed toward the inside of the base 1 .

A preferred embodiment of the track seat 2 is a ㄇ-shaped body, and a card track groove 23 of appropriate length is provided on the inner side of the track body 21 on opposite sides of the ㄇ-shaped body, and the inner end of the card track groove 23 is a bottom 231; And a protruding block 22 is provided at an appropriate position on the outer surface of at least one rail body 21, and a side of the protruding block 22 facing the inner end is formed as a slope 221, so that the protruding block 22 becomes a block with a single slope.

A preferred embodiment of the push rod 4 is formed to have a groove 42 parallel to the moving direction of the track seat 2 at one end, and the groove 42 can accommodate the movement of the protrusion 22 therein; the other end of the push rod 4 The pressing part 41 can be formed by bending or in other ways; an extension part 43 is provided at an appropriate position of the push rod 4 . The other end of the memory stretch wire 5 is fixed on the extension part 43 .

Combination of the aforementioned components:

First, the elastic element 18 is placed on the positioning column 19 of the base 1; the spring hook 3 is combined and fixed in the groove 13; the protrusion 22 of the track seat 2 slides into the groove 42 of the push rod 4, and the telescopic line 5 is memorized After the two ends of the two ends are respectively fixed on the protruding part 111 and the extension part 43, slide the track body 2 and the push rod 4 into the base 1 along the rail groove 12 of the base 1; then cover the upper plate 16 and the lower plate 17 Set on the base 1 and below.

Fig. 2 discloses the structure after the main components of the utility model are combined, and Fig. 2 shows the state that cards 6 such as memory card or network card have not been inserted; In this state, elastic element 18 pushes track seat 2 rear ends, makes The track seat 2 is closer to the front end of the base 1 ; at this time, the hook portion 32 of the spring hook 3 does not buckle the protrusion 22 .

Fig. 3 reveals that after the card 6 is inserted into the card rail slot 23 of the track seat 2, the card 6 contacts the bottom 231 and pushes the track seat 2 to move toward the inner end of the base 1, so that the hook portion 32 of the snap hook 3 moves along the The inclined surface 221 of the protrusion 22 is pushed until the track seat 2 is displaced to a fixed position, and the hook portion 32 is fastened to the protrusion 22 by virtue of the elasticity of the snap hook 3 (as shown in FIG. 4 and FIG. 5 ), In order to prevent the track seat 2 from ejecting the card 6 from the connector. At this time, the elastic element 18 is compressed by the track seat 2 to store energy. Fig. 6 shows that when the utility model is about to withdraw from the card 6, the memory stretchable wire can be made by pressing the button (not shown in the figure) and passing a single pulse current through the circuit preset on the circuit board of the base 5 shorten, and then pull the push rod 4 to move, so that the end of the push rod 4 pushes the cam part 33 to make the spring hook 3 swing, and then makes the hook part 32 break away from the catch on the protrusion 22; at this time, the compressed elastic element 18 is to release energy to push the track seat 2 away from the inner end of the base, and then the card 6 is ejected from the connector body (as shown in Figure 7). Of course, the user can not use the button to control the ejection of the card, but manually press the pressing part 41 of the push rod 4, and the push rod 4 can also directly push the cam part 33 so that the hook part 32 is released from the engagement with the protrusion 22. , to achieve the same card refund purpose.

The above are only preferred embodiments for explaining the utility model, and are not used to limit the utility model in any form. On the contrary, any modifications related to the utility model are made under the same creative spirit. Or changes, all should still be included in the category protected by the utility model.

Claims (7)

1. A connector advance and retreat card device, characterized in that it includes: a base combined with a circuit board; a spring hook, located on the base; A track seat is provided on the base in a sliding fit, and the track seat is provided with a protrusion that can make the spring hook snap in, and an elastic element is arranged between the track seat and the base, and the elastic element is opposite to the The track seat exerts a force away from the base; a push rod slidingly fitted on the base; A memory telescopic cable, the two ends of which are connected to the push rod and the base, and are electrically connected to the circuit of the circuit board. After the circuit is fed with a single pulse current, the memory telescopic cable is shortened, and then the The push rod pushes the spring hook, so that the spring hook is disengaged from the engagement with the protrusion. 2 . The connector advancing and retreating locking device according to claim 1 , wherein the spring hook is provided with a cam portion, and the end of the push rod corresponds to the cam portion. 3 . 3. The connector advancing and retreating card device according to claim 1 or 2, wherein, the side of the protrusion facing the inner end is a slope. 4. The connector advancing and retreating card device according to claim 1 or 2, wherein the end of the push rod facing the outer end has a pressing portion. 5 . The connector advancing and retreating card device according to claim 1 , wherein, the memory stretch wire is a nickel-titanium alloy material. 6 . 6. The connector advance and retreat card device according to claim 1, wherein the side wall of the base is provided with a card slot, and one end of the spring hook has a card post corresponding to the card slot, the The clamping column is combined in the clamping groove, so that the hook portion at the other end of the spring clamp forms a free end. 7. The connector advance and retreat card device according to claim 1 or 2, wherein, the end of the push rod is provided with a groove parallel to its moving direction, and the protrusion on the track seat is matched with in the groove.

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