CN2554703Y - Holder - Google Patents

Abstract

The utility model provides a clamping device, which is arranged in a machine body and is used for clamping and fixing a substrate arranged on the machine body, the clamping device comprises a frame and an outer cover, the shapes of the frame and the outer cover are matched with the frame to cover the frame, a containing space is formed by the frame and the outer cover, and a pair of clamping devices are arranged at two sides of the frame, so that the substrate can be selectively pulled and pushed away relative to the clamping device, wherein each clamping device comprises a platform which is arranged in the containing space for extending from one side of the frame, a telescopic sliding unit is arranged on the platform and is provided with a protruding part and a sliding part which is not in the containing space, when the platform surface slides up and down, the protruding part protrudes out of the outer cover in a telescopic way, and the sliding part slides to the bottom of the platform to clamp the substrate and a positioning unit, and is sleeved in the frame and is close to the position of the platform, the telescopic sliding unit is arranged at the bottom of the platform in a propping and limiting sliding way; and a releasing unit accommodated in the accommodating space along one side of the frame, and when acting on the positioning unit, each telescopic sliding unit of the clamping devices simultaneously returns to the upper part of the platform.

Description

Holder

technical field

The utility model relates to a clamping device. In particular, it relates to a fastening device arranged in a base for connecting to a portable electronic device.

technical field

At present, for electronic devices, especially notebook computers among portable electronic devices, the most concerned subject during development is to be most suitable for commercial use and to be widely used all over the world. And the most labor-intensive part is "how to maximize the expandability of the small body of the notebook computer". Regarding this point, at present, notebook computer manufacturers are considering LAN and the connection with peripheral machines, etc., and carefully consider the expansion of complete connection ports and hard disks, and have a variety of notebook computer models suitable for them. generated by the docking station or docking station.

As shown in Figures 1 and 3, many positioning posts 11, 12, etc. will be provided on the base 10 to locate the notebook computer 20 to be placed on it, and except for the positioning posts 11, 12, there will be In addition, hooks 15 and 16 are provided to fasten the notebook computer 20 . Therefore, when there are more positioning columns and hooks arranged thereon, the holes required to be reserved under the body of the corresponding notebook computer will correspondingly increase. However, because the general notebook computer is light, thin and small for business use, how to simplify the aforementioned positioning posts and hooks so that the notebook computer can have more space for different structural designs, and at the same time, the wall can be used in a smarter way. The purpose of the utility model is to enable the portable electronic device connected to the base to be quickly connected to and detached from the base.

Contents of the invention

The utility model provides a base for positioning and fastening the connected electronic device body at the same time.

The utility model provides a fastening device, which can pull and release the body of the connected electronic device in response to the user's needs, so that the user can more easily connect the electronic device through the fastening device. Electrically connected to a base.

The utility model provides a fastening device for connecting the bottom wall of a notebook computer, and enables the connected notebook computer to be quickly connected and disconnected from a base.

According to the above idea, the clamping device of the present invention is arranged in a body to fasten a substrate on the body. The clamping device includes a frame and an outer cover, and its shape matches the frame to cover The frame forms an accommodating space and a pair of fastening devices by the frame and the outer cover, which are arranged on both sides of the frame so that the substrate can be selectively pulled and locked relative to the fastening device. Pushed away, wherein each clamping device includes a platform, which is accommodated in the accommodation space for extending from one side of the frame, and a telescopic sliding unit, loaded on the platform, has a protrusion When the sliding part in the accommodating space reciprocates and slides up and down on the platform, the protruding part protrudes telescopically from the outer cover, and the sliding part slides to the bottom of the platform to fix the base plate and position a unit, which is sleeved in the frame and close to the position of the platform, to resist the retractable sliding unit which restricts sliding to the bottom of the platform; and a release unit, which is accommodated along one side of the frame In the accommodating space, when it acts on the positioning unit, each telescopic sliding unit of the locking devices is simultaneously moved back to the top of the platform.

Preferably, the platform has two parallel and slightly inclined guideways formed therein, through which the telescopic sliding unit can slide to the bottom of the platform. And each guideway has a closed end to limit the telescopic sliding unit sliding to the bottom of the platform.

Preferably, the telescopic sliding unit has a sliding plate for cooperating with the guide rails so that the telescopic sliding unit can reciprocally slide along the platform and a guide rod for locking the base plate. In a preferred embodiment, the protrusion is a guide rod.

Preferably, the clamping device further includes a positioning block, which is extended from a bottom wall of the frame and has a position between the positioning unit and the retractable sliding unit.

Preferably, the guide rod further includes a telescopic element, which contacts the positioning block by passing through the guide rod. And in a preferred sliding condition, wherein the telescopic element slides forward and downward through the positioning block.

Preferably, the telescopic element includes a metal body and a spring partly sheathed around the metal body, and through cooperation of the two, the telescopic element can elastically contact an inclined surface of the positioning block.

Preferably, the frame has a plurality of hollow bosses formed therein, and the inner walls of these bosses each have a thread formed therein for a screw to screw the outer cover and the frame frame.

Preferably, the clamping device further includes a positioning unit, which is set at a position close to the platform by being sleeved on one of the protrusions, so as to resist the retractable part that is limited to the bottom of the platform. a sliding unit; and a release unit, which is arranged in the frame along one side of the platform and the frame, and is used to push the positioning unit, whereby the telescopic unit positioned at the bottom of the platform The slide unit slides back above the platform.

Preferably, the release unit includes a push piece for pushing by an external force, a frame frame connected to one side of the push piece, and its shape is consistent with the folded inner periphery of the frame frame. Cooperate, so that it can be arranged between the outer periphery of the platform and the inner periphery of the frame, a protrusion is formed from the inner periphery of the frame, and its protruding position is in line with the first positioning unit of the clamping device Matching, when it pushes the positioning unit under force, the sliding unit positioned at the bottom of the platform slides back to the top of the platform, and the first connecting rod extends from a corner of the frame to link the card The second positioning unit and a pivot member of the fixing device are independently arranged in the frame to withstand the connecting rod, so that the second positioning unit, which is affected by the first connecting rod, can follow the first The positioning units move simultaneously.

Preferably, the positioning unit has a positioning body, which has a through hole formed therein for setting one of the protrusions; a set of rods is extended from one side of the positioning body, It is used for setting the externally added first elastic body. And the release unit acts on the first elastic body so that the positioning unit can reciprocally move and when it is away from the platform, the telescopic sliding unit can slide to the top of the platform.

Preferably, the telescopic sliding unit has a second elastic body, one end of which is fixed on the frame and close to the position of the platform, and one end is connected to the bottom of the sliding unit so that the sliding unit positioned at the bottom of the platform The unit slides over this platform. The first elastic body cooperates with the second elastic body so that the telescopic sliding unit can slide above the platform.

Preferably, the base plate has an abutting portion that is positioned to match the protruding portion, so as to abut and press the protruding portion.

According to the aforesaid ideas, the clamping device provided by the present invention is arranged in a body to fasten a substrate mounted on the body, and the clamping device includes a frame and an outer cover, whose shape matches the frame The frame is protected by a cover, and a pair of fastening devices are arranged on both sides of the frame, so that the substrate can be selectively pulled and pushed away relative to the fastening device. Wherein each clamping device comprises a platform, is accommodated in the accommodating space for extending from one side of the frame, and a retractable sliding unit, loaded on the platform, has a structure protruding from the frame and the The first part outside the outer cover and the slidable second part in the accommodating space, when the first part slides back and forth along the platform, the second part protrudes telescopically from the outer cover and the base plate, and When sliding to the bottom of the platform, the base plate is fastened, a positioning unit is sleeved in the frame and close to the position of the platform, so as to resist the retractable sliding unit that limits sliding to the bottom of the platform; and a The release unit is accommodated in the accommodating space along one side of the frame, and when it acts on the positioning unit, each telescopic sliding unit of the locking devices is simultaneously moved back above the platform .

According to the above idea, the base is used to fasten an electronic device, the electronic device has a substrate, and it is characterized in that the base includes a retainer, which is arranged in the base and is used to pass through the substrate for fastening In the electronic device, the fastening device has a frame, an outer cover whose shape matches the frame to cover the frame and forms an accommodating space by the frame and the outer cover, and a pair of fastening devices, It is arranged on both sides of the frame so that the substrate can be selectively pulled and pushed away relative to the clamp. Wherein each fastening device comprises a platform, is extended from one side of this frame and is accommodated in this accommodating space, a retractable sliding unit, is loaded on this platform, has a protruding part and is not in the The sliding part in the accommodating space, when the platform slides back and forth, the protruding part protrudes telescopically from the outer cover and the base plate, and slides to the bottom of the platform on the sliding part to fix the base plate, a positioning unit, and cover set in the frame and close to the position of the platform to resist the retractable sliding unit on the bottom of the platform to limit sliding; and a release unit, which is accommodated in the container along one side of the frame Placed in the space, when it acts on the positioning unit, each telescopic sliding unit of the clamping devices is simultaneously moved back to the top of the platform.

Description of drawings

Other features and advantages of the present utility model will be clearly understood in the following detailed description of preferred embodiments with reference to the accompanying drawings. In the accompanying drawings:

Figure 1 is a perspective view illustrating an embodiment of a known base;

Fig. 2 is a cross-sectional view, which is to illustrate a notebook computer and the situation that the known base is engaged;

Fig. 3 is an exploded view, which is to illustrate another known base with a side-mounted hook to engage with a notebook computer;

Fig. 4 is a perspective view, illustrating a preferred embodiment of the clamping device provided by the utility model is arranged in a base and intended to be clamped with a notebook computer;

Figure 5 is an exploded perspective view of the preferred embodiment;

Fig. 6 is an enlarged side view of a part of the preferred embodiment, illustrating the corresponding situation when the clamping device is clamped with a substrate;

Fig. 7 is a side view, which describes the change of the position of the retractable sliding unit of the clip after the clip of the present invention clips a substrate in accordance with Fig. 6;

Fig. 8 is a side view, which describes the position change of the retractable sliding unit of the clip after the clip of the present invention is detached from a base plate in accordance with Fig. 7;

Fig. 9 is an exploded view illustrating the position of the releasing unit of the clamp when it is assembled in the frame; and

FIG. 10 is a perspective view illustrating the structure of the release unit.

Detailed ways

As shown in FIG. 4 , the fastener 40 provided by the present invention is installed in a body of a base. Preferably, the base 4 can be used with an electronic device, such as a personal digital assistant or a notebook computer 5 or the aforementioned developed and mass-produced USB interface or a docking station (docking station) of other interfaces or It is connected with a base station, so that all the computer peripherals at home or in the company are connected to the base 4, and the installation procedures can be simplified.

Judging from the appearance of the base 4, in a preferred embodiment, the clamping device of the present invention can be integrated into a clamping device by using two clamping devices on the left and right, and then installed on the body of a base Inside. And the utility model utilizes a part of the retractable sliding unit 404 in each fastening device to penetrate the upper surface of the base 4 to be buckled with the notebook computer 5 to be carried and electrically connected to the base 4 . Therefore, it is different from the individual independent design of the two elements that require a lot of positioning columns and hooks in the known technology (as shown in Figure 2), the clamping device 4 provided by the utility model combines both the positioning function and the buckling function The integration makes the utility model more convenient and more perfect when fastening or buckling the notebook computer.

Now, a further description will be made on the clamping device 40 provided by the present invention, so as to clearly explain the action of the clamping device when clamping the notebook computer.

As shown in Figure 5 and Figure 6, each clamping device of the clamping device is mainly designed by the cooperation of the frame 401 and the outer cover 402 in shape so that the aforementioned retractable sliding unit 404 and the retractable sliding unit 404 are provided. The platform 405 used for sliding the sliding unit 404 can be accommodated inside the accommodating space 403 defined by the frame 401 and the outer cover 402. In addition, the retainer 40 also includes a positioning unit 406 and a release mechanism. Unit 407.

In FIG. 5 , the inside of the frame frame 401 has a plurality of hollow bosses 501, 502, 503... formed therein, and each of these bosses 501, 502, 503... Each of the inner walls has a screw thread 501', 502', 503'... formed therein, for making the corresponding external screws (not shown) go to the screw threads 501', 503' of these bosses. 502', 503'... and so on are screwed together. In addition to the design of the protrusion, the frame 401 also has a spacer design for separating or fixing other components, and the spacer design for matching with other components will be described later.

The platform 405 extends from one side of the frame 401 . In another preferred embodiment, a platform 405 is provided on both sides of the frame 401 . It should be noted that the platform 405 can be a hollow and roughly frame-shaped platform as shown in Figure 5 or a platform slightly smaller than the frame 401 extending from the side of the frame 401, for The retractable sliding unit 404 loaded thereon slides therein. In a preferred embodiment, the platform 405 has two parallel spaced and slightly inclined guideways 504, 505 formed therein for the telescopic sliding unit 404 to slide in the platform 405, even slidable To the bottom of platform 405 . Clearly, each guideway 504 or guideway 505 has an end closure 504', 505' to limit the retractable sliding unit 404 sliding to the bottom of the platform 405 (see FIG. 7). And when the telescopic sliding unit 404 slides back to the top of the platform 405 or above, the telescopic sliding unit 404 can be limited on the top of the platform 405 by the notches 506, 506', 507, 507' (see FIG. 8 ).

The telescopic sliding unit 404 is loaded on the platform 405 and has a protruding part 601 protruding from the outer cover 402. When the protruding part 601 slides back and forth along the aforementioned guideways 504, 505 inside the platform 405, it can telescopically It protrudes from the outer cover 402 and the base plate 41, and when it slides to the bottom of the platform 405 (as shown in FIG. 7 ), it can cooperate with the abutting portion 42 of the protruding portion 601 on a set position on the base plate. In the condition of protruding from the outer cover 402 and the base plate 41 , it is pressed by the base plate 41 and abuts against the abutting portion 602 so as to further pull and secure the base plate 41 . In another situation, when the retractable sliding unit 404 is in a free state without force, the base plate 41 can be pushed away from the clamper 40 (as shown in FIG. 8 ).

Furthermore, the retractable sliding unit 404 has two parts, the first part refers to a sliding part 602, in a preferred embodiment the sliding part 602 is a slide plate, and the second part is the aforementioned The protruding part 601 connected to the sliding part 602 and used to protrude outside the outer cover 402 and the base plate 41 , and in a preferred embodiment, the protruding part 602 is a guide rod. When reciprocating sliding, the retractable sliding unit 404 matches the guideways 504, 505 of the platform 405 through the roughly rectangular slots 603, 604 of the sliding part 602, so that the telescopic sliding unit 404 can use itself The sliding part 602 of the second part reciprocates and slides along the platform 405 telescopically, and uses the protruding part 601 of the first part to clamp the substrate 41 .

In addition, the positioning unit 406 is disposed at a position close to the platform 405 by being sleeved on the boss 502', so as to resist the telescopic sliding unit limited at the bottom of the platform 405. The positioning unit 406 has a positioning body 701, and a through hole 702 is formed in the positioning body 701, for allowing one of the protrusions, that is, the aforementioned protrusion 502' to be sleeved, and also includes A set of rods 703 extend from one side of the positioning body 701 to provide an additional elastic body 704 for sheathing.

As shown in Figures 7 and 8, it should be further explained that the protruding part 601 uses a telescopic piece built in it to go through the protruding part 601 itself or the guide rod and contact the positioning block, thereby enabling the The telescoping member built in the protruding portion is slid forward and downward by the positioning block 408 . The telescopic element mainly includes a metal body 605 penetrating through the central part of the protrusion 601 and a spring 606 partially sheathed around the metal body 605, and the metal body 605 and the spring 606 cooperate to make the telescopic element The positioning block 408 can be elastically contacted, and the positioning block 408 has an inclined surface 409 for contacting with the metal body 605, so that the telescopic sliding unit 404 can slide forward and downward or alternatively on the other side. Under conditions, when the telescopic sliding unit 404 is in a free state without force, it can return along the slope 409 and go up to the top of the platform 405 .

As shown in Figures 9 and 10, the release unit 407, which is accommodated in the accommodation space 403 by one side of the frame 401, when it acts on the positioning unit 406, will make the two locking devices on the left and right Each of the telescopic sliding units 404 , 404 ′ positioned at the bottom of the platform 405 moves back to the top or the top of the platform 405 simultaneously.

The release unit 407 includes a push piece 801 for pushing by an external force, a frame frame 802 that is connected to one side of the push piece 801 and is shaped to match the inner periphery of the frame frame 401, and protrusions 803, 804 , they are formed from the inner edge of the frame 802, and its protruding position is matched with the positioning unit 406, a connecting rod 804, which extends from a corner of the frame 802, acts to link the other The positioning unit 406' of the clamping device 404' and a pivot member 805 are independently arranged in the frame 401 to withstand the connecting rod 804, so that the positioning unit 406' affected by the connecting rod 804 , can be linked with the positioning unit 406 simultaneously.

It should be noted that the release unit 407 is disposed between the outer peripheral edge of the platform 405 and the inner peripheral edge of the frame 401 . In the design of the frame frame, there are two screens formed therein, and their setting positions are to match with the sleeve rods of each positioning unit 406, 406', so that the sleeve rods are straddled on it. What will be explained here is that each fastening device provided by the utility model also includes a positioning block 408 (take Fig. 7, 8 as an example), which is extended from the bottom wall 409 of the frame 401 and has The location between the positioning unit 407 and the retractable sliding unit 404 , and the retainer 40 includes a partition 508 for straddling the sleeve rod 703 sleeved with the elastic body 704 . Therefore, in other words, the position of the positioning unit 407 is sandwiched between the partition plate 508 and the positioning block 408 , and elastically resists or moves away from the telescopic sliding unit 404 by virtue of the elastic action of the elastic body 704 .

In view of the above, the aforesaid pivot member 805 has a rotating piece 806, which abuts against the connecting rod 804. When the rotating piece 805 is pushed by the connecting rod 804, it will delink with the positioning unit 406', so that the received The positioning unit 406 and the positioning unit 406 ′ individually act on the telescopic sliding units 404 , 404 ′, which can simultaneously and respectively move back above the platforms 405 , 405 ′. In addition to the connecting rod 804, the releasing unit is provided with another connecting rod 807 on the side parallel to the connecting rod 804 and extending from the frame 802 and close to the positioning unit 406, which can provide an additional elastic body 808 For set up.

It is also explained that, except that the utility model is provided with elastic bodies 704, 704' on the sleeve rods 703, 703' of each positioning unit 406, 406', the sliding parts of the telescopic sliding units 404, 404' 601, 601' are respectively provided with one end fixed on the frame 401 and adjacent to the platforms 405, 405' respectively, and the other end is respectively connected to the sliding parts 602, 602 of the telescopic sliding units 404, 404' 'The elastic bodies 607, 607' are also equipped with elastic bodies 808 on the connecting rod 807 of the release unit, so when the utility model pushes the positioning units 406, 406' by the release units 407, 407', it can Utilize the elastic body 704, 704' and the elastic body 607, 607' to make the retractable sliding units 404, 404' originally restricted at the bottom of the platform 405, 405' be subjected to the elastic restoring force and quickly return to the platform 405, 405 individually. 'top, further enabling the substrate 41 above the platform 405, 405' to be pushed away from the clamp 40 (as shown in FIG. 8).

The above is only a preferred embodiment of the utility model, and should not limit the scope of the utility model implementation, that is, all simple equivalent changes and modifications made according to the scope of the utility model patent application and the content of the description of the invention , all should still belong to the scope that the utility model patent covers.

Claims (26)

1. A fixing device, which is arranged in a body to fasten a substrate arranged on the body, comprising: a frame; an outer cover whose shape fits the frame to cover the frame and forms an accommodating space by the frame and the outer cover; A pair of clamping devices are arranged on both sides of the frame so that the substrate can be selectively pulled and pushed away relative to the clamping device, wherein each clamping device includes a platform for extending from the One side of the frame is accommodated in the accommodating space, a telescopic sliding unit is loaded on the platform, has a protruding part and a sliding part not in the accommodating space, and reciprocates up and down on the platform When sliding, the protruding portion telescopically protrudes from the outer cover, and the sliding portion slides to the bottom of the platform to fasten the base plate and a positioning unit, which is sleeved in the frame and close to the position of the platform, so as to abutting against the retractable sliding unit on the bottom of the platform to limit sliding; and A release unit is accommodated in the accommodating space along one side of the frame, and when it acts on the positioning unit, each telescopic sliding unit of the clamping devices is simultaneously returned to the platform above. 2. The clamping device according to claim 1, wherein the frame has a plurality of hollow bosses formed therein, and the inner walls of these bosses each have a screw thread formed therein for making A screw is used to screw the outer cover and the frame. 3. The fastener as claimed in claim 2, wherein each positioning unit is set at a position close to the platform by being sleeved on one of the protrusions, so as to resist the restricted the sliding unit at the bottom of the platform. 4. The clamping device according to claim 3, wherein each positioning unit has: A positioning body, which has a through hole formed therein, for one of the protrusions to be sleeved; A set of rods is extended from one side of the positioning body for the sheathing of the additional first elastic body. 5. The clamping device according to claim 4, wherein each of the releasing units acts on the first elastic body so that each of the positioning units can reciprocally move and when moving away from the platform, each of the releasing units The telescopic sliding unit can slide to the top of the platform. 6. The clamping device according to claim 4, characterized in that, the frame has two screens formed therein, and the setting positions thereof are matched with the sleeve rods of each positioning unit, so that the sleeves The rod straddles it. 7. The fastener as claimed in claim 6, wherein the first elastic body is sleeved on the sleeve rod and is limited between the screen and the positioning body. 8. The clip according to claim 4, wherein each telescopic sliding unit has a second elastic body, one end of which is fixed on the frame and close to the platform, and the other end is connected to each of the The bottom of the sliding unit, so that each sliding unit positioned at the bottom of the platform can slide to the top of each platform. 9 . The fastener as claimed in claim 6 , wherein the first elastic body cooperates with the second elastic body so that each telescopic sliding unit can slide above the platform. 10. The clip according to claim 1, wherein the releasing unit comprises: a push piece for pushing with an external force; A frame frame, connected to one side of the push piece, whose shape matches the inner peripheral edge of the frame, so that it can be arranged between the outer peripheral edge of the platform and the inner peripheral edge of the frame; A protrusion is formed from the inner peripheral edge of the frame, and its protruding position is matched with the first positioning unit of the clamping device. The unit slides back above the platform; a first connecting rod extending from a corner of the frame to link the second positioning unit of the clamping device; and A pivot member is independently arranged in the frame to resist the connecting rod, so that the second positioning unit acted by the first connecting rod can simultaneously move together with the first positioning unit. 11. The clip according to claim 10, wherein the release unit further comprises a second link parallel to the first link and extending from the frame and close to one side of the first positioning unit for It is used for sheathing with an additional third elastic body. 12. The clamping device according to claim 11, wherein the frame has a partition formed therein, and its position is matched with the second connecting rod so that the connecting rod straddles the second connecting rod. on it. 13. The fastener as claimed in claim 12, wherein the third elastic body is sleeved on the second connecting rod and is limited between the partition plate and the frame. 14. The clamping device according to claim 10, wherein the pivoting member has a rotating piece, which abuts against the first connecting rod, and when it is pushed by the first connecting rod, it is in interlocking motion. The second positioning unit thereby enables the telescopic sliding units affected by the first positioning unit and the second positioning unit to move back to the top of the platforms at the same time. 15. The clip according to claim 1, wherein the platform has two parallel and slightly inclined guideways formed therein, through which the telescopic sliding unit can slide to the platform bottom. 16. The clip as claimed in claim 1, wherein each of the guiding channels has one end closed to restrict the retractable sliding unit sliding to the bottom of the platform. 17. The fastener according to claim 16, wherein the sliding part cooperates with the guides so that the telescopic sliding unit can slide back and forth along the platform, and the protruding part is a guide rod for use in to buckle the substrate. 18. The fastener as claimed in claim 1, further comprising a positioning block, which is extended from a bottom wall of the frame and has a gap between the positioning unit and the telescopic sliding unit. Location. 19. The clamping device as claimed in claim 1, wherein the guide rod further comprises a telescopic part, which contacts the positioning block by passing through the protruding part. 20. The fastener as claimed in claim 19, wherein the telescopic member slides forward and downward through the positioning block. 21. The fastener as claimed in claim 20, wherein the telescopic member comprises a metal body and a spring partly sheathed around the metal body, and the telescopic member is made to The positioning block can be elastically contacted. 22. The fastener as claimed in claim 21, wherein the positioning block has an inclined surface for contacting with the metal body so that the telescopic sliding unit can slide forward and downward. 23 . The clamping device according to claim 20 , wherein the base plate has a resisting portion that is positioned to match the protruding portion, so as to resist and suppress the telescopic element. 24 . The clamping device according to claim 1 , wherein the base plate has a resisting portion that is positioned to match the protrusion, so as to resist and press the protrusion. 25. A fixing device, which is arranged in a body to fasten a substrate arranged on the body, comprising: a frame; a cover shaped to fit the frame to cover the frame; and A pair of clamping devices are arranged on both sides of the frame so that the substrate can be selectively pulled and pushed away relative to the clamping device, wherein each clamping device includes a platform for extending from the One side of the frame is accommodated in the accommodating space, A retractable sliding unit, loaded on the platform, has a first part protruding from the outside of the frame and the outer cover and a slidable second part hidden in the accommodating space, when the first part reciprocates along the platform When sliding, the second part protrudes telescopically from the outer cover and the base plate, and locks the base plate when sliding to the bottom of the platform. A positioning unit is sleeved in the frame and close to the position of the platform place, the retractable sliding unit placed on the bottom of the platform to resist the limit sliding; and A release unit is accommodated in the accommodating space along one side of the frame, and when it acts on the positioning unit, each telescopic sliding unit of the clamping devices is simultaneously moved back to the platform above. 26. A base for fastening an electronic device, the electronic device has a substrate, characterized in that the base comprises: A fastening device is arranged in the base to pass through the substrate to fasten the electronic device. The fastening device has: a frame; an outer cover whose shape fits the frame to cover the frame and forms an accommodating space by the frame and the outer cover; A pair of clamping devices are arranged on both sides of the frame so that the substrate can be selectively pulled and pushed away relative to the clamping device, wherein each clamping device includes a platform for extending from the One side of the frame is accommodated in the accommodating space, a telescopic sliding unit is loaded on the platform, and has a protruding part and a sliding part not in the accommodating space, when the platform slides back and forth, The protruding part protrudes telescopically from the outer cover and the base plate, and the sliding part slides to the bottom of the platform to fasten the base plate. A positioning unit is sleeved in the frame and close to the position of the platform, the retractable slide unit placed on the bottom of the platform to abut against limited sliding; and A release unit is accommodated in the accommodating space along one side of the frame, and when it acts on the positioning unit, each telescopic sliding unit of the clamping devices is simultaneously moved back to the platform above.

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