TWI527537B - Automatic opening of concealed slide - Google Patents

Description

Automatic opening device for hidden slide rails

The invention relates to an automatic opening device for a hidden slide rail, which relates to that the drawer can be paused in one of the pause positions after the drawer is closed, and the drawer can be completely closed by simply closing the drawer again to ensure the automatic opening function. The related technical field also relates to the related field in which the spring tension of the automatic opening device can be adjusted.

Pressing, the slide rail with the automatic opening function may cause the drawer to be ejected and lose the automatic opening function when the drawer is not closed to the predetermined position, for example, the new type M396049 "automatic opening of the hidden drawer slide rail" The automatic closing buffer device patent case, when the drawer is not closed to the predetermined position, the positioning post of the swinging member cannot be positioned in the latching groove of the self-opening control member, so that the drawer is ejected due to the elastic force of the elastic member, and The next automatic opening function is achieved; as in the new patent No. M394046 "Automatic opening device for drawer slides", the drawer may not be closed to the set position, so that the positioning axis of the rocker cannot be positioned on the slider. The trunk of the channel, so that the drawer is ejected by the spring force of the spring, and the next automatic opening function cannot be achieved.

In the second check, the slide rail with the automatic opening function is also unable to adjust due to the spring tension, and the following is missing:

1. It is not easy and convenient for the user to adjust the pulling force, which is inconvenient to use.

2. When the load is too heavy, the tension of the spring is insufficient, and the drawer and the movable rail are not smooth. Therefore, the spring has to be disassembled and replaced, and for the average user, the relevant components are removed and the spring with large pulling force is replaced. Operation is not It is easy to ask the operator to replace it, which is both cumbersome and inconvenient, which causes great trouble for the user.

3. When the movable rail is locked with the side wall of the drawer and the fixed rail is locked with the side wall of the cabinet to complete the assembly, the automatic opening is often caused by the tolerance size being too small, so the drawer can only be modified or replaced or the relevant components can be disassembled. Replace the spring.

In view of this, the inventors have invented and designed an automatic opening device for a hidden slide rail through continuous research and improvement.

The main purpose of the present invention is to provide an automatic opening device for a hidden slide rail. When the drawer is not closed to a predetermined position, the positioning post of the positioning member can be temporarily introduced into one of the suspension slots to temporarily position the drawer. Pop-up, the user can easily close the drawer again, and the automatic opening function can be ensured.

A second object of the present invention is to provide an automatic opening device for a hidden slide rail, and the user can adjust the increase or decrease the tension of the spring by adjusting the spring adjusting member, and the operation is simple and convenient.

A further object of the present invention is to provide an automatic opening device for a hidden slide rail, which can be applied to different load loads or different dimensional tolerances by adjusting the tension of the spring without modifying or replacing the drawer, and without disassembling the relevant components. Replace the spring and make the automatic opening action smoother and more accurate.

The utility model relates to an automatic opening device for a hidden slide rail, which comprises at least a fixed rail, a movable rail, an automatic opening seat, a slider, a linkage member, at least one spring and the like, and is characterized in that: the slider is introduced The channel is a plurality of non-linear bending channels to form a plurality of suspension slots between the front side inlet and the rear side outlet end for correspondingly introducing the number of suspension slots into the positioning post by the positioning member. One of them is that when the user presses back and closes the drawer, the positioning post of the positioning member is not directly introduced into the card slot of the cassette channel by the introduction channel due to insufficient force or improper operation. The drawer does not pop forward with the force of the spring, but the pause slot of one of the pause slots is introduced because the positioning post of the positioning member is near. The user can press the positioning post of the positioning member to the card slot of the cassette channel as long as the user pushes the drawer back gracefully, thereby completing the correct drawer closing operation and ensuring that the user presses the next time. The drawer can achieve the automatic opening function; in addition, the user can adjust the spring adjusting member to adjust or increase the tension of the spring. The operation is simple and convenient, and can be adjusted by the tension of the spring to be applicable to different load loads. Or different dimensional tolerances, without the need to modify or replace the drawer, without the need to disassemble the relevant components to replace the spring, and make the automatic opening action smoother and more accurate.

[this creation]

(1) ‧‧‧ fixed rail

(11) ‧‧‧ bottom

(111)‧‧‧Clock hook

(12) ‧‧‧ side

(2) ‧‧‧ activity track

(20)‧‧‧ linkages

(3) ‧‧‧Automatic opening

(31) ‧‧‧ Guide slots

(311)‧‧‧ Back side

(312) ‧ ‧ 掣 掣

(4)‧‧‧ Slider

(40)‧‧‧Hooks

(401) ‧ ‧ Guidance Department

(402)‧‧‧ hooks

(41)‧‧‧Introduction channel

(411) ‧‧‧ front entrance

(412) ‧‧‧ rear exit end

(413) ‧‧‧suspension card slot

(42)‧‧‧Extracting channels

(43) ‧‧‧Carson Channel

(431) ‧‧‧ card slot

(44)‧‧‧ Positioning Department

(45) ‧ ‧ lacking slots

(451)‧‧‧Abutment wall

(46) ‧‧‧ pivot

(5) ‧ ‧ spring

(51) ‧ ‧ end

(52) ‧ ‧ the other end

(6) ‧‧‧ positioning parts

(61) ‧‧‧Positioning column

(7)‧‧‧Spring adjustment parts

(71) ‧‧‧Clocks

(72) ‧‧‧Flexible Department

(73)‧‧‧Sliding section

(731) ‧ ‧ Enlarged Department

(74)‧‧‧Cartridge

(8)‧‧‧Spring adjustment seat

(81)‧‧‧ positioning slots

(83)‧‧‧ hook groove

(84)‧‧‧Chute

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the state in which the automatic opening seat is closed in the embodiment of the present invention.

2 is a perspective view of a part of the member and the fixed rail in the state in which the automatic opening seat is closed in the embodiment of the present invention.

Fig. 3 is a top plan view showing a part of the member and the fixed rail in the closed state of the automatic opening seat according to the embodiment of the present invention.

Fig. 4 is a sectional view taken along line B-B of Fig. 3;

Figure 5 is a partial enlarged view of Figure 4.

Figure 6 is an enlarged cross-sectional view showing a portion of the embodiment of the present invention after the spring adjusting member is adjusted.

Figure 7 is a partial cross-sectional enlarged view of the embodiment of the present invention in which the spring adjusting member is adjusted to another position.

Figure 8 is an enlarged view of a part of the opening state of the automatic opening device of the embodiment of the present invention.

Figure 9 is a plan view showing a part of the member in an open state of the automatic opening device of the embodiment of the present invention.

Fig. 10 is a perspective view showing the state in which the automatic opening of the seat is opened in the embodiment of the present invention.

Figure 11 is a perspective view of a portion of the member and the fixed rail of the automatic opening of the seat in the embodiment of the present invention.

Fig. 12 is a plan view showing a part of the member and the fixed rail in the state in which the seat opening is automatically opened in the embodiment of the present invention.

Fig. 13 is a schematic cross-sectional view showing a portion of the member and the fixed rail in the state in which the automatic opening of the seat is opened in the embodiment of the present invention.

Figure 14 is a partial enlarged view of Figure 13.

Figure 15 is an enlarged plan view showing a portion of a top view plane in which a positioning post is positioned in a gutter in accordance with an embodiment of the present invention.

Figure 16 is an enlarged plan view showing a portion of a top view plane in which a positioning post is positioned to suspend a card slot in accordance with an embodiment of the present invention.

17 is an enlarged plan view showing a portion of a top view plane in which a positioning post is positioned to suspend a card slot in an embodiment of the present invention.

18 is an enlarged plan view showing a portion of a top view plane in which a positioning post is positioned to one of the pause slots in the embodiment of the present invention.

FIG. 19 is an enlarged plan view showing a portion of a plane in which a positioning post is positioned to suspend a card slot according to an embodiment of the present invention. FIG.

20 is an enlarged plan view showing a portion of a top view plane in which a positioning post is positioned in one of the pause slots in the embodiment of the present invention.

Figure 21 is a perspective enlarged view of a portion of the member in which the seat opening is automatically opened in the embodiment of the present invention.

Fig. 22 is an enlarged plan view showing a portion of the member in which the seat opening is automatically opened in the embodiment of the present invention.

Figure 23 is a partial enlarged view of Figure 1.

As shown in FIG. 1 to FIG. 23, an automatic opening device for a hidden slide rail comprises at least one fixed rail 1 (refer to FIG. 1 to FIG. 7 and FIG. 10 to FIG. 14), including a bottom surface 11 and a bottom surface. The side 12 connected to one end of the 11 is configured to be coupled to a side wall of the cabinet (not shown) through the side surface 12; a movable rail 2 (refer to FIG. 2, FIG. 10) The fixed rail 1 is slidable relative to the front and rear directions of the fixed rail 1, and the movable rail 2 is fixedly engaged with the drawer (not shown) to slide the front and rear directions of the drawer relatively; An automatic opening seat 3 (refer to FIG. 2 to FIG. 3, FIG. 8 to FIG. 22) is fixedly coupled to the bottom surface 11 of the fixed rail 1, and the automatic opening seat 3 is provided with at least one guiding slot 31 (refer to FIG. 1 to FIG. 3, 8 to 9), the front end of the guiding groove 31 is provided with a latching portion 312 (refer to FIG. 9 and FIG. 17), and a positioning member 6 is further disposed behind the automatic opening seat 3 (refer to FIG. 11 to FIG. 21), the positioning member 6 has a positioning post 61; a slider 4 (refer to FIG. 1, FIG. 3, FIG. 8, FIG. 11 to 20), which is disposed in the automatic opening seat 3 to be opposite to the automatic opening seat. The front end of the slider 4 is moved, and the front end of the slider 4 has a notch 45 (refer to FIG. 8, FIG. 21, FIG. 23) and an abutting wall 451 adjacent to the notch 45. The front end of the slider 4 is close to the appropriate portion of the slot 45 and a hook block 40 is pivotally mounted by the pivot 46 (refer to FIG. 2, FIG. 3, FIG. 8, FIG. 11). The slider 4 has at least one positioning portion 44 (refer to FIG. 8 and FIG. 21) for connecting to at least one end 51 of a spring 5, and the inner surface of the slider 4 is provided with at least one introduction channel 41 (refer to FIG. 14), an export channel 42 and a cassette channel 43, the cassette The channel 43 further has a latching groove 431 (refer to FIG. 14), and the two sides of the latching channel 43 respectively engage the rear side of the introduction channel 41 and the rear side of the lead-out channel 42 to make the The positioning post 61 of the positioning member 6 pivotally opened by the automatic opening seat 3 can be introduced from the front side of the introduction channel 41, and moved backward to be caught in the latching groove 431 of the cassette channel 43 (refer to FIG. 15), or The latching slot 431 is disengaged and disengages from the slider 4 along the lead-out channel 42 (refer to FIG. 14); a hook block 40 having a rear side pivotally connected to the slider 4 and a front side having a hook portion 402 for hooking The front side of the connecting member 20 has a guiding portion 401 (refer to FIG. 9 and FIG. 17 ) which can slide into the guiding slot 31 of the automatic opening seat 3 for guiding the slider 4 along the automatic opening seat 3 . The guiding groove 31 slides back and forth; a linking member 20 (refer to FIG. 1 and FIG. 10) is disposed on one side of the movable rail 2 for interlocking the slider 4 and the hook block 40 pivoted by the slider 4. The guiding portion 401 is latched (refer to FIG. 22) or disengaged (refer to FIG. 9). The latching portion 312 of the automatic opening seat 3 can be linked to the hook block 40 to slide forward, thereby also making the slider 4 as the hook block 40 slides forward, until the hook 40 along the guide portion 401 automatic opening of the guide groove 31 of the seat 3 Guided and deflected, and the guiding portion 401 is clamped on the latching portion 312 of the automatic opening seat 3, and at the same time, the hook portion 402 of the hook block 40 is disengaged from the linking member 20; at least one spring 5, one end 51 thereof (refer to FIG. 15) is connected with the positioning portion 44 (refer to FIG. 15) of the slider 4, and can be pulled backward by the slider 4 or by the elastic returning force to drive the slider 4 to slide forward; by the components When the drawer (not shown) is in a closed state, the linkage 20 provided by the movable rail 2 of the drawer locking connection is hooked with the hook portion 402 of the hook block 40 pivoted by the automatic opening seat 3 to be positioned. And the rear end of the linking member 20 is adjacent to the abutting wall 451 of the slider 4 (refer to FIGS. 1 and 18), and the guiding portion 401 of the hook block 40 is locked behind the guiding slot 31 of the automatic opening seat 3. Side 311 (refer to FIG. 9), and the positioning post 61 of the positioning member 6 is locked to the latching groove 431 of the latching channel 43 of the slider 4 (refer to FIG. 15); when the front of the drawer is pressed backwards The linkage 20 of the movable rail 2, which is locked by the drawer, abuts against the abutment wall 451 of the slider 4 (refer to FIGS. 1 and 18), and the slider 4 can be interlocked with the pivot block 40 thereof. Sliding backwards for a short period of time At the same time, the latching groove 431 on the inner surface of the slider 4 is disengaged from the positioning post 61 of the positioning member 6 pivoted by the automatic opening seat 3, and then the guiding channel 42 of the inner surface of the slider 4 can be used to guide and borrow. The slider 4 is slid forward by the elastic restoring force of the spring 5, and the hook block 40 pivoted by the slider 4 is also slid forward by the guiding portion 401 along the guide groove 31 of the automatic opening seat 3, The guiding portion 401 is deflected and latched in the latching portion 312 of the guiding slot 31 (refer to FIG. 22), and the deflected hook block 40 is also disengaged from the hook portion 402 of the hook block 40. The drawer to which the movable rail 2 is connected is in an open state (refer to FIG. 10) which can continue to slide forward to achieve the purpose of automatic opening, and the slider 4 is forwardly slid forward by the returning force of the spring 5. The inner guiding channel 42 is also guided backwards, so that the positioning post 61 of the positioning member 6 is located just before the introduction channel 41 of the slider 4 (refer to FIG. 11 to FIG. 14); When pushed back to the original position, the linkage 20 provided by the movable rail 2 that can be locked and connected by the drawer abuts against the abutting wall 451 of the slider 4, and interlocks the slider 4 After the sliding, the hook block 40 pivoted by the slider 4 is also slid backward and deflected by the guiding portion 401 along the guiding groove 31 to disengage the guiding portion 401 from the automatic opening seat 3. The latch portion 312 of the guide groove 31, The hook block 40 is hooked by the hook portion 402 to the linkage member 20, and at the same time, the hook block 40 can be slid rearward together with the slider 4, and at the same time, the slider 4 is extended backward by the slider 4, when the hook The guiding portion 401 of the block 40 is slid to the rear side 311 of the guide groove 31 of the automatic opening seat 3, and the introduction channel 41 on the inner surface of the slider 4 also guides the positioning post 61 of the positioning member 6 into the introduction channel 41. In the slider 4, the positioning post 61 of the positioning member 6 is engaged with the latching groove 431 of the cassette channel 43 (refer to FIGS. 1 and 5) to position the slider 4, that is, to restore the drawer. a closed state, waiting for the automatic opening action when the next drawer is pressed; characterized in that: the introduction channel 41 of the slider 4 is non-linear and has a plurality of bending channels (refer to FIG. 14) on the front side thereof A plurality of suspension slots 413 (refer to FIG. 14 to FIG. 22) are formed between the inlet 411 and the rear outlet end 412 for being introduced into one of the number of suspension slots 413 by the positioning post 61 of the positioning member 6. Suspension of the card slot 413; in other words, when the user presses and pulls back the drawer, the positioning post 61 of the positioning member 6 is not directly introduced due to insufficient force or improper operation. When the lane 41 is introduced into the latching slot 431 of the latching channel 43, the drawer does not eject forward with the force of the spring 5, but may be suspended due to the positioning of the positioning post 61 of the positioning member 6 into one of the plurality of suspending slots 413. The card slot 413 (refer to FIG. 16 to FIG. 20), at this time, the user can lock the positioning post 61 of the positioning member 6 to the latching slot of the latching channel 43 by simply pressing the drawer again and then closing the drawer. 431 (refer to Figure 15), and complete the correct drawer closing action, and ensure that the automatic opening function can be achieved when the user gently presses the drawer.

Furthermore, at least the other end 52 of the spring 5 is connected with a spring adjusting member 7 (refer to FIG. 1 to FIG. 13 and FIG. 21 to FIG. 22). The spring adjusting member 7 is movably disposed on a spring adjusting seat 8 (refer to FIG. 1 to 13, FIG. 21 to FIG. 22), for adjusting the tension of the spring 5 with respect to the front and rear directions of the spring adjusting seat 8, the spring adjusting seat 8 is fixedly coupled to the fixed rail 1 One end of the spring adjusting member 7 includes at least one locking portion 71 (refer to FIG. 5 to FIG. 7) for selecting a predetermined position in the front and rear directions of the spring adjusting seat 8 to adjust the relative position. For the purpose of the pulling force of the spring 5, the locking portion 71 is provided with a hook block (or a hook groove) for selecting a hook groove 83 of one or more hook grooves 8 corresponding to the spring adjusting seat 8 (see Refer to Figure 5 to Figure 8, Figure 21) (or one of the hook blocks of one or more hook blocks).

In addition, the spring adjusting member 7 further includes an elastic portion 72 (refer to FIGS. 5 to 7) connected to one end thereof, so that the spring adjusting member 7 has elasticity so that the spring adjusting member 7 can be biased. The hook block (or the hook groove) of the locking portion 71 is disengaged from one of the hook grooves 83 (or one of the hook blocks) of the spring adjustment seat 8.

Moreover, the spring adjusting member 7 further includes a slider portion 73 (refer to FIG. 8, FIG. 11 to FIG. 20), and the spring adjusting seat 8 is correspondingly provided with a sliding groove 84 in the front and rear directions (refer to FIG. 11 and 21), the spring adjusting member 7 can be moved in the front and rear directions of the sliding groove 84 of the spring adjusting base 8 by the slider portion 73.

In addition, one side of the slider portion 73 of the spring adjusting member 7 further includes an enlarged portion 731 (refer to FIG. 8, FIG. 11, FIG. 21), and the enlarged portion 731 is larger than the width of the sliding groove 84 of the spring adjusting seat 8. For preventing the detachment from the sliding groove 84, the enlarged portion 731 is used to be biased to disengage the locking portion 71 from one of the hook grooves 83 (or one of the hook blocks) of the spring adjusting seat 8.

Furthermore, the spring adjusting member 7 further includes a spring positioning portion such as a post 74 (refer to FIGS. 5 to 8) for connection with the other end 52 of the spring 5.

In addition, in the present embodiment, the spring adjusting seat 8 is provided with first and second engaging hooks 111 respectively provided with positioning grooves 81 (refer to FIG. 1 ) to be respectively engaged with the bottom surface 11 of the fixed rail 1 (refer to the figure). 1~ 3) The joint is fixed, and the spring adjusting seat 8 can also be directly fixed to the bottom surface 11 of the fixed rail 1 by a locking component (not shown).

Moreover, when the tension of the spring 5 is to be finely adjusted, the enlarged portion 731 of the slider 73 of the spring adjusting member 7 can be moved. Referring to FIG. 5 to FIG. 7 , a schematic diagram of shifting to different positions is performed, and when the biasing force is applied, the spring is adjusted. When the hook 7 (or the hook groove) opposite to the locking portion 71 is hooked in the same direction as the hook groove 83 (or the hook block) of the spring adjusting seat 8, the spring 5 can be stretched to relatively reach Adjusting the effect of increasing the pulling force of the spring 5, and when the user stops applying a force to the enlarged portion 731, the spring adjusting member 7 is then hooked by the hook block 7 (or the hook groove) of the locking portion 71 to adjust the spring. One of the hook grooves 83 (or the hook block) of the seat 8; when the user applies a downward force to the enlarged portion 731 of the spring adjusting member 7, The hook block (or the hook groove) of the locking portion 71 can be disengaged from one of the hook grooves 83 (or one of the hook blocks) of the spring adjusting seat 8 and the spring can be made by the returning force of the spring 5. The adjusting member 7 is displaced toward the one end 51 of the spring 5, and then the hook portion (or the hook groove) of the locking portion 71 is restored to a state in which one of the hook grooves 83 (or the hook block) is hooked to shorten the tension of the spring 5 The distance is relatively adjusted to reduce the pulling force of the spring 5.

In summary, the present invention can be summarized as having the following enhancement effects:

1. When the drawer is not pushed back and the positioning is closed, it does not pop forward with the force of the spring 5, and the positioning post 61 of the positioning member 6 can be suspended by one of the sliders 4 of the slider 4 to suspend the card slot 413. Simply push the drawer back down gently and elegantly to close the drawer and ensure that the automatic opening function is achieved the next time the user presses the drawer.

2. The stroke of the slider 4 is relatively long, which can effectively increase the distance that the drawer is opened.

3. The user can adjust the increase or decrease of the pulling force of the spring 5 by merely moving the spring adjusting member 7, and the operation is simple and convenient.

4. The tension adjustment of the spring 5 can be applied to different load loads or different dimensional tolerances without modifying or replacing the drawer, and without replacing the relevant components, replacing the spring 5 of another specification, and making the automatic opening action smoother. ,more acurrate.

Therefore, the present invention does have its industrial use value. It is an application for a patent for invention, and it is requested that the examination committee of the bureau should examine and grant the patent in detail.

However, the above-mentioned embodiments are only the preferred embodiments of the present invention, and the equivalent variations and modifications made by the scope of the present invention should still be the patents covered by the present invention. Within the scope.

(1) ‧‧‧ fixed rail

(11) ‧‧‧ bottom

(12) ‧‧‧ side

(3) ‧‧‧Automatic opening

(4)‧‧‧ Slider

(40)‧‧‧Hooks

(41)‧‧‧Introduction channel

(411) ‧‧‧ front entrance

(412) ‧‧‧ rear exit end

(413) ‧‧‧suspension card slot

(42)‧‧‧Extracting channels

(43) ‧‧‧Carson Channel

(431) ‧‧‧ card slot

(44)‧‧‧ Positioning Department

(451)‧‧‧Abutment wall

(46) ‧‧‧ pivot

(5) ‧ ‧ spring

(51) ‧ ‧ end

(6) ‧‧‧ positioning parts

(61) ‧‧‧Positioning column

Claims (4)

An automatic opening device for a hidden slide rail includes at least a fixed rail including a bottom surface and a side surface connected by one side end of the bottom surface, and the side surface is configured to be coupled to a side wall of the cabinet body; The movable device is disposed on the fixed rail, and is slidable relative to the front and rear directions of the fixed rail. The movable rail is fixedly engaged with the drawer to slide the front and rear directions of the drawer relatively; the automatic opening seat is fixedly connected to the fixed rail. a bottom surface of the fixed rail, the automatic opening seat is provided with at least one guiding groove, and a front end of the guiding groove is provided with a locking portion, and a positioning member is further disposed at a rear of the automatic opening seat, and the positioning member has a positioning post; a slider is movably disposed on the automatic opening seat to move in a front and rear direction relative to the automatic opening seat, the front end of the slider has a notch and an abutting wall adjacent to the notch, the abutting wall is used for A slider is abutted against the link, and the front end of the slider is close to a suitable portion of the slot and pivotally provided with a hook block. The slider has at least one positioning portion for connecting to at least one end of a spring. And the slip The inner surface of the card slot has at least one introduction channel, a lead channel, and a card channel. The card channel further has a card slot, and the two sides of the card channel respectively engage the introduction channel. The rear side of the rear side and the rear side of the lead-out channel, the positioning post of the positioning member pivoted by the automatic opening seat can be introduced from the front side of the lead-in channel, and moved backward to be stuck in the latching groove of the cassette channel Or detaching from the card slot and disengaging the slider along the lead-out channel, the introduction channel of the slider being a non-linear channel having a plurality of bends at the front entrance and rear Forming a plurality of suspension slots between the side outlet ends for guiding the one of the plurality of suspension slots to be engaged with the positioning post of the positioning member; and a hook block, the rear side of which is pivotally connected with the slider The front side has a hook portion for hooking or detaching from a linking member, and the front side further has a guiding portion for sliding into the guiding slot of the automatic opening seat for guiding the slider along the guiding slot of the automatic opening seat. Sliding back and forth; a linkage member is disposed on one side of the movable rail for interlocking the slider and erecting the slider The guide engaging portion of the hook piece or disengaged automatically open seat engaging portion, which The linkage member can interlock the hook block to slide forward, thereby causing the slider to slide forward with the hook block until the guiding portion of the hook block is deflected along the guide groove of the automatic opening seat, and The guiding portion is clamped on the latching portion of the automatic opening seat, and at the same time, the hook portion of the hook block is disengaged from the linking member; at least one spring is connected at one end thereof to the positioning portion of the slider, and can be stretched backward by the slider or The elastic returning force drives the slider to slide forward, and the spring is connected to at least one spring adjusting member from the other end thereof, and the spring adjusting member is movably disposed on a spring adjusting seat to adjust the seat relative to the spring The front and rear direction adjustment positions are used to adjust the pulling force of the spring, and the spring adjusting member at least includes a locking portion for selecting a predetermined position of the front and rear directions of the spring adjusting seat, the spring adjustment The seat joint is fixed to the bottom surface of the fixed rail, and the locking portion of the spring adjusting member is provided with a hook block or a hook groove to select the hook card to be positioned in one or more hook grooves corresponding to the spring adjusting seat. One of the hook grooves or one or more hook blocks And the spring adjusting member further comprises an elastic portion connected to one end thereof, so that the spring adjusting member has elasticity, and the spring adjusting member can be biased to disengage the hook block or the hook groove of the locking portion One of the hooking grooves or one of the hooks of the spring adjusting seat, and the spring adjusting member further comprises a sliding portion, and the spring adjusting seat is correspondingly provided with a sliding groove in the front and rear directions, so that the spring adjusting member The slider portion can be moved in the front and rear directions of the chute of the spring adjustment seat. The automatic opening device of the hidden slide rail according to claim 1, wherein one side of the slider portion of the spring adjusting member further comprises an enlarged portion which is larger than a width of the sliding groove of the spring adjusting seat. The protrusion is prevented from being disengaged from the chute, and the enlarged portion is used to be biased to displace the locking portion in a direction away from the spring adjustment seat. The automatic opening device of the hidden slide rail according to claim 2, wherein the spring adjusting member further comprises a spring positioning portion for connecting with the other end of the spring. An automatic opening device for a hidden slide rail comprises at least: a fixed rail comprising a bottom surface and a side surface connected by one side end of the bottom surface, the side surface being configured to be coupled to a side wall of the cabinet body; a movable rail The movable device is disposed on the fixed rail, and is slidable relative to the front and rear directions of the fixed rail. The movable rail is fixedly engaged with the drawer to slide the front and rear directions of the drawer relatively; the automatic opening seat is fixedly connected to the fixed rail. a bottom surface of the fixed rail, the automatic opening seat is provided with at least one guiding groove, and a front end of the guiding groove is provided with a locking portion, and a positioning member is further disposed at a rear of the automatic opening seat, and the positioning member has a positioning post; a slider is movably disposed on the automatic opening seat to move in a front and rear direction relative to the automatic opening seat, the front end of the slider has a notch and an abutting wall adjacent to the notch, the abutting wall is used for A slider is abutted against the link, and the front end of the slider is close to a suitable portion of the slot and pivotally provided with a hook block. The slider has at least one positioning portion for connecting to at least one end of a spring. And the slip The inner surface of the block is provided with at least one introduction channel, one lead-out channel and a card channel, and the card channel further has a card slot, and the two sides of the card channel respectively engage the introduction slot The rear side of the track and the rear side of the lead-out channel enable the positioning post of the positioning member pivoted by the automatic opening seat to be introduced from the front side of the lead-in channel and moved backward to click on the jam of the cassette channel The groove is detached from the card slot and is separated from the slider along the lead-out channel, and the introduction channel of the slider is a non-linear channel having a plurality of bends at the front side entrance and the rear side thereof Forming a plurality of pause slots between the outlet ends for respectively engaging one of the plurality of pause slots into the slot by the positioning post of the positioning member; a hook block, the rear side of which is pivotally connected to the slider, The front side has a hook portion for hooking or detaching from a linking member, and the front side further has a guiding portion that can slide into the guiding slot of the automatic opening seat for guiding the slider to follow the guiding groove of the automatic opening seat. a linkage; a linkage member disposed on one side of the movable rail for interlocking the slider and the hook pivoted by the slider The guiding portion is latched or disengaged from the latching portion of the automatic opening seat, and the linking member can slide the hook block forwardly, thereby causing the slider to slide forward with the hook block until the guiding of the hook block The guiding portion is deflected along the guiding of the guiding slot of the automatic opening seat, and the guiding portion is clamped on the locking portion of the automatic opening seat, and at the same time, the hook portion of the hook block is disengaged from the linking member; at least one spring, One end is connected with the positioning portion of the slider, and can be stretched backward by the slider or by the elastic returning force to drive the slider to slide forward The spring is connected to at least one spring adjusting member at the other end thereof, and the spring adjusting member is movably disposed on a spring adjusting seat to adjust the position with respect to the front and rear directions of the spring adjusting seat for adjusting the spring The spring adjusting member includes at least a locking portion for selecting a predetermined position in the front and rear directions of the spring adjusting seat, and the locking portion of the spring adjusting member is provided with a hook block or a hook groove Positioning the hook card to position one or more hook grooves or more than one hook block corresponding to the spring adjusting seat, and the spring adjusting member further comprises an elastic portion connected to one end thereof, so that the spring adjusting member has elasticity and The spring adjusting member can be biased to disengage the hook or the hook groove of the locking portion from a hook groove or a hook block of the spring adjusting seat, and the spring adjusting seat is fixedly coupled to the fixed rail. The bottom surface, the spring adjusting member further includes a sliding portion, and the spring adjusting seat is correspondingly provided with a sliding groove in the front and rear directions, so that the spring adjusting member can slide along the sliding portion of the spring adjusting seat Front and rear direction shift And one side of the slider portion of the spring adjusting member further includes an enlarged portion that is larger than a width of the sliding slot of the spring adjusting seat for preventing the detachment from the sliding slot, and the enlarged portion is used for being applied The force displaces the locking portion away from the spring adjustment seat, and the spring adjustment member further includes a spring positioning portion for connecting with the other end of the spring.