TW551026B - Circuit board fixing method and the device using the same - Google Patents

Abstract

The present invention relates to a circuit board fixing method and the device using the same, which is mainly to insert a fixing member on the base board of the device housing, the fixing member comprises a blocking portion and a limiting portion, which are connected to form a reversed-L shape, the blocking portion extends out to form a shoulder portion, and the limiting portion turns over/projects upwards to have an inlet portion. Then slip the through hole of the circuit board into the inlet portion of the fixing member correspondingly, and moves the circuit board downward along the lower part of the limiting portion until the through hole of the circuit board abuts the blocking portion and is supported by the shoulder portion. Finally, use a blocking engagement member to block the circuit board, so that the circuit board can not move arbitrarily. With this design, the circuit board can be assembled/disassembled rapidly and conveniently without using screw, thereby reducing the production cost and making the maintenance convenient.

Description

551026 V. Description of the invention (1) [Technical Field of the Invention] The present invention relates to a method for fixing a circuit board and the use of α ^, especially to a new method for installing a circuit board inside a device without using screws at all. inventor. Quickly unload this [narration of previous skills] With the rapid development of electronic technology: various factors τ ^ ;; Tongfeng Kaxi Leiqi products have also been continuously updated, and for rapid assessment ^ product life cycle Therefore, the introduction of new products often requires a market and, in order to meet the requirements of this production, various kinds are sufficient to increase the speed of Shaanxi, and are constantly being proposed. Take the current method of group 2 of the motherboard of the computer. Most motherboards are fixed in the host using bolts as an example '(hereinafter referred to as the substrate). This kind of assembly method, whether it is the motherboard of the motherboard group or removed from the motherboard, need to screw or loosen several screws: so 'This motherboard assembly method is not only more troublesome and troublesome, and will The process of screwing or unscrewing the screws will also waste a lot of time and affect production capacity. In order to improve this shortcoming in order to improve the production capacity and increase the convenience of assembly, the US patent No. 5'973, 926 "Method and apparatus for attaching circuit board to chassis and forming so 1id ground connection using a sing1e screw" was launched. . The patent case No. 5, 9 73, 9 2 6 partially discloses a computer host, and emphasizes that the assembly method of the motherboard (7) is performed according to the following steps (please refer to Figure 14 for matching):

Page 4 551026 V. Description of the invention (2) a) Firstly, a plurality of fixing hooks (5) are fixed on a base plate (8); the base plate (8) is one of the side plates in the casing of a computer host, The base plate (8) is mainly used for installing the motherboard (7), and one side of the base plate (8) is combined with a back plate (9) 〇b) to insert a plurality of movable hooks (61) into the motherboard (7) ), The first standard hole (70); the movable hooks (61) are formed on a bracket (62). c) The second standard hole (71) on the main board (7) is inserted into the first hook (5). d) screwing the bracket (6 2) to the back plate (9) 'with a screw (6 3), and making the bracket (6 2) face towards the screw as the screw (6 3) is tightened The back plate (9) moves. Therefore, the movable hook (6 丨) will move with the motherboard (7) to the back plate (9) along with the movement of the bracket (6 2), so that the motherboard (7) The inner edge of the two standard holes (71) is buckled in the groove (5 1) of the fixing hook. Through the step of opening, the motherboard (7) can be fast-fixed on the substrate (8) by using the fixed hook (5) and the movable hook (61). However, ^ still needs to use the screw (6 3) to pull and move the movable hook (6 1) so that the inner edge of the second standard hole (7 1) can abut the card of the fixed hook (5) Slot (5 1). Therefore, the conventional motherboard assembly method disclosed in the patent still requires the use of one or more screws, which cannot effectively improve the disadvantages derived from the use of screws. Furthermore, in the conventional motherboard assembly method disclosed in this patent, not only screws (6 3) are required, but also the fixing hooks need to be prepared and assembled separately.

Page 5 551026

(5), movable hooks (61), and brackets (62), which obviously will increase the overall manufacturing cost and reduce the product market competitiveness. Therefore, how to provide a new method for assembling the motherboard (or circuit board) to truly improve the disadvantages caused by the use of screws is obviously a matter of urgency. [Objective and Summary of the Invention] The main purpose of the present invention is to provide an A method for fixing a circuit board using a screw and a device using the method are used to quickly fix a circuit board to a case of a device. Specifically, the circuit board has at least one through hole, and the machine stage has at least one substrate. At least one fixing member is inserted into the substrate, and the fixing member includes a blocking portion and a limiting portion. The blocking portion and The restriction portions are connected to form an inverted L shape, and a shoulder portion is extended outwardly from the blocking portion, and an introduction portion is turned upside-down on the restriction portion. Then, the through hole of the circuit board is correspondingly sleeved into the lead-in part of the sparse fixing member, and the circuit board is slid along the restricting part until the through hole of the circuit board abuts against the stopper and is the shoulder. Ministry support. Finally, a blocking member is used to stop the circuit board so that the circuit board cannot be arbitrarily moved back. Because in the process of assembling and disassembling the circuit board, only the fixing part is used with the 忒 2 part, there is no need to use any screws, and it has the benefits of fast and convenient assembly and disassembly, and can effectively reduce production costs and Convenient for maintenance performers. [The preferred embodiment of this creation] " Refer to the first, the first, and the figure, which reveals a preferred embodiment by which

551026

V. Description of the invention (4)

The main point of the present invention is explained. This embodiment discloses a device (such as a computer host) and only partially shows that the device has a substrate (10), a plurality of fixing members (2) are disposed on the substrate (10), and a circuit board (3) The sleeve is placed as a fixing member (2), and a blocking member (4) is provided on the substrate (10) for pressing against the circuit board G3). & Specifically, the device includes: & ' has a substrate (10). (The casing is not shown in the figure) A plurality of fixing members (2) 'are arranged on the base plate (1 0), and each of them is fixed.

The piece (2) is shown in the fourth to seventh figures, and includes a foot portion (20), a shoulder portion (21), a stop portion (22), a restriction portion (23), and an introduction portion (24). ), Douzhong: ', The foot (20) includes a first curved rod (201) and a second curved rod (^ 02), and the first and second curved rod (2 0 1) (202) Each L-shaped and flatly affixed to the base plate (1 0), and the first bent rod (2 0 1) includes a first end (2 0 11) and a second end (2 ο 1) 2), the first end (2 ο 11) is inserted into the base plate (10), and the second end (20 12) extends upward to form a first link (2 0 3); the second bend The rod (2 0 2) also has a first end (202 1) and a first end

One end (2 0 2 2) 'The first end (2 0 2 1) is inserted into the base plate (1 0), and is diagonally opposite to the first end (2 0 1) of the first bent rod (2 0 1). 〇11), the second end (2 0 2 2) is opposite to the second end (2 0 1 2) of the first bending rod (2 0 1), and extends upward to form a second link (2 0 4) is juxtaposed to the first link (203); the shoulder (2 1) includes a first support rod (2 丨 丨) and a second support rod (2 1 2), the first The supporting rod (2 1 1) is the first end connected to the foot (20).

Page 7 551026 V. Description of the invention (5) " " 一 · " ------ connecting rod (2 0 3), the other end is facing the second connecting rod (2 0) of the foot (2 0) 〇4), the first rod (212) is a second link (204) with one end connected to the foot (20), and the other end (1) is connected with the first link (2) 0 3); The blocking part 〃 (22) includes a first blocking lever (221) and a second blocking lever (2 2 2). The first blocking lever (2 2 1) is formed by the shoulder ( 2 1) the first support rod (jin is formed by extending upwards, and the second stop rod (222) is formed by the first support rod (2 1 2) of the shoulder portion (22) extending upward; the restricting portion (2 3 ), Which includes a first limit lever (2 3 1) and a second limit cup (2 3 2). The first limit lever (2 3 丨) is connected to the first stop of the stop (2 2). Lever (221) and parallel to the base plate (10), the second limit lever (2 3 2) is connected to the second stop lever (2 2 2) of the stop (2 2) and is parallel to the Base plate (1 0); '4 introduction portion (2 4), forming a u-shaped rod for connecting the first and second restricting rods (23 1) (232) of the restricting portion (23), and The lead-in part (2 is turned upside down at an angle. A circuit board (3) is provided with a plurality of through holes (30) and a first edge (31). The through holes (30) are correspondingly sleeved into the fixing. The lead-in part (24) of the piece (2), the first edge (3 1) is directly opposite the lead-in Qiu (24) of the fixed piece (2). The first stop piece (4) is shown in the eighth figure It includes: a first leg (4 1), which is L-shaped and is flat on the substrate (丨 〇), and includes a first end (411) and a second end (412); The end (4n) s is not provided on the substrate (丨 〇), and the second end (4 丨 2) is extended upward to form a first resisting rod (4 3) in the shape of a pin for pressing against the circuit board ( 3) the first edge

551026 V. Description of the invention (6) * (31); A second leg (4 2) is L-shaped and is flat on the substrate (丨 〇) at a distance from the first leg (4 1) It includes a first end (4 2 丨) and a second end (422). The first end (421) is provided for pivoting on the base plate (10), and is opposite to the first foot bar ( 41), the second end (421) is extended upward to form a second abutting rod (4 4) in a ϋ shape for pressing against the first edge (3 1) of the circuit board (3); and, the previous connection The rod (4 5) is connected to the first and second abutting rods (4 3) (4 4), and the connection between the connecting rod (45) and the first and second abutting rods (4 3) (44), Divide = convex to form a first abutment portion (431) and a second abutment portion (441) for the first edge (31) of the circuit board (3) to abut ^ is by the fixing member (2) With the cooperation of the piece (4), the circuit board (3) can be quickly 'fixed' on the base plate (10) in a step, and its overlord does not need to use screws at all: (please refer to Figure 9 for cooperation) a ) Insert the fixing member (2) on the base plate (10); b) Place the circuit board (3) The through hole (30) corresponds to the lead-in part (2 4) of the fixing member (2); c) slide the circuit board (3) along the restriction part (23) until the circuit board (3) The through hole (30) abuts against the stop (22). At this time, the circuit board (3) is supported by the shoulder (21), as in the tenth figure ^ No, d) is on the substrate (10) ) The blocking member (4) is inserted near the first edge (31) of the circuit board (3), and the blocking member (4) can be dialed to a first position (A) and a first Two position (β) ·,

551026 V. Description of the invention (7) e) Transfer the supporting part (4) to the position (B) of the brother, so that the first and second hits (43) (44) of the supporting part (4) arrive Pressed on the first edge (31) of the circuit board (3), and protruded from the first and second abutments (43) (44) on the first and second abutments (43) (44) are available The first edge (31) of the circuit board (3) abuts, as shown in the tenth, eleventh and twelve figures. It is the blocking member (4) that makes the circuit board (3) unable to arbitrarily retreat from the fixing member (2) after being inserted into the fixing member (2). When it is necessary to detach the circuit board (3) from the substrate (1 〇), only (1) T / Λ # (4) ^ ^ ^^ £ (Α) 5-^ ^ ^ (3) toward a. The lead-in part (24) of the Haigu piece (2) =; 2. ) 'S restricting part ⑵) and the lead-in port two or two + With the use of the fixing part (2) and the stopper part (3), the author's part 摔 is broken, so that the first and second hits are determined correspondingly. If it is not the first edge (31) of the road board (3), the substrate (10) can be obtained. The whole pass; the; 7 pieces (2) (that is, the cows unloaded from the upper part of the field are quickly, easily and easily operated by the field. Step d of inserting the fixing member and the restricting member 也 can also be The restriction piece (4) is, in addition, it must be clear that in fact, all the embodiments that can be disclosed on the circuit board are limited, as shown by the matter, "the cover (in strike) For example, please refer to the thirteenth figure. When the mouth is on the base plate (1〇), the cover,

Page 10 The circuit board (3) shall be restricted after the fixing member (2) cannot be moved back. 551026 5. Description of the invention (8) (11) (3 1). Therefore (1 0), the body (1 1) can be detached from this, and the group and detachment are limited. The advantage of the metal rod is the same as above, the same order, convenience and figure) A plate just presses against the first of the circuit board (3), the operator only needs to cover the cover (11) on the board. The base plate is fixed to the circuit board. Conversely, the substrate (10) can be used to make the circuit board (3) detachable. For example, the operation of the circuit board (3) will be simpler and faster. The specific form of the fixing member (2) is not disclosed above. The embodiment is an embodiment. Since the fixing member (2) and the restricting member (4) are both formed by bending, it is easy to manufacture and low cost. When inserted into the substrate (10), it is relatively simple and fast. To further explain: (please refer to the first and the eleventh, where the base plate (1 0) corresponds to each fixing member (2), two diagonally opposite arch pieces (1 〇1) are formed by stamping. ), So that the chess piece (1 0 1) and the base plate (1 0) are paired to form two fixing holes (1002) for the first and second bending rods (2) of the fixing member (2), respectively. 2 0 1) (2 0 2) is inserted at the first end (2 0 1 1) (2 0 2 1). In this way, the operator only needs to apply force to pinch the first and second curved rods (201) (202). ) 'And loosen at the first ends (20 1 1) (20 2 1) of the first and second curved rods (201) (202), respectively, after aligning with the corresponding fixing holes (102). When the force is applied, the first and second curved rods (2 0 1) (2 0 2) can respectively insert their first ends (2 0 1 1) (2 0 2 1) by their own elastic restoring force. Corresponding fixing hole (1 0 2). The whole process is quite simple, fast and easy to operate. In addition, because the first and second bending rods (2 0) (2 0 2) of the fixing member (2) are diagonally opposite The ground is flat on the base plate (1 0), so that the fixing member (2) can stand firmly on Any substrate without departing from the substrate (10) on the danger of (10).

Page 551 551026 V. Description of the invention (9) " 一 -'- Similarly, the substrate (10) corresponds to each of the restricting members (4), and two arc-shaped pieces facing each other are formed by stamping ( (103), so that the arc-shaped piece (103) and the base plate (10) are paired to form two pivot holes (104) / for the first and second poles (41) of the restricting member (4), respectively. Redundant 42) The first end (4 1 1) (4 2 1) is inserted. The whole process is also quite simple, fast and easy to operate. Among them, because the first end (4 11) (42 1) of the first and second legs (41) (42) of the restricting member (4) are in the same straight line + and are inserted into the pivot hole (104) It is not a tight fit, so the ^ product (4) can be turned to the first position (A) or the second position (B) of the child, so as to determine whether to press the first (3) of the electric board (3) Those on the edge (31). It is easy to understand from the above description that the preferred embodiment of the present invention enables an operator to assemble the circuit board (3) on the substrate (10) without using screws at all. The plate (3) is quickly assembled and fixed. Compared with the circuit board fixing method of the US No. 5, 9 73, 92 6, the device using the present invention is faster and more convenient for assembling the circuit board because it does not need screws. Therefore, the present invention enables: The assembly of the device is simpler, more convenient and faster, thereby effectively increasing production capacity and reducing production costs. 9 Ben Sheming can make the remote board can be disassembled and installed multiple times without affecting the stability of the circuit board when it is installed again. 9 The present invention enables the device to facilitate repair work due to the convenience of disassembly and assembly of its circuit board. In addition, in the disclosed embodiment of the present invention, the fixing member (2) and the limiting member (4) are integrally bent and formed by using a metal rod, and the arch piece (101)

551026 V. Description of the invention (10) f 5 melons (103) are obtained by directly stamping the substrate (10). These components 构件 are easy to manufacture and have the advantage of low cost, which is conducive to the promotion of the present invention. In summary, the present invention clearly has industrial applicability and progress # and there is no disclosure of the same or similar in the similar articles. The nature of the invention is that the invention obviously meets the application for an invention patent Essentials, according to the law, only those mentioned above cannot be used to limit the scope of this profit. 'It is only one of the preferred embodiments of the present invention, and the scope of implementation, that is, any changes and modifications specifically applied for in accordance with the present invention shall still be covered by the patent of the present invention

551026 Brief description of the drawings [Explanation of the drawings] The first figure 'is an exploded perspective view of a preferred embodiment of the present invention. The first figure is a perspective view of a preferred embodiment of the present invention. The second figure 'is an enlarged plan view of a preferred embodiment of the present invention. The fourth figure 'is a perspective view of the fixing member (2) of the present invention. The fifth figure 'is a front view of the fixing member (2) of the present invention. The sixth figure 'is a plan view of the fixing member (2) of the present invention. The seventh figure is a left side view of the fixing member (2) of the present invention. The eighth figure is a perspective view of the pressing member (4) of the present invention.

The ninth figure is a cross-section A-A of the third figure, so as to explain the implementation of the present invention. The tenth figure 'is a schematic diagram of the supporting member (2) supporting the circuit board (3) of the present invention. The eleventh figure is a partial enlarged view of the ninth figure. The twelfth figure is a partial enlarged view of the first figure. The thirteenth figure is a partial sectional view of another preferred embodiment of the present invention. Figure 14 is a schematic diagram of the assembly of a conventional computer motherboard. [Illustration of drawing number] Base plate (1 0) Arch piece (1 0 1) Fox piece (1 0 3) Fixing piece 2) Foot (2 0) First end (2 0 11) Cover body (11) Fixing Hole (1 0 2) pivot hole (1 0 4) first bending rod (201) second end (2 0 1 2)

Page 14551026 The diagram briefly explains the first link (2 0 3), the second curved rod (2 0 2), the second end (2 0 2 2), the shoulder (2 1), and the second rod (2 1 2). The first end (2 0 2 1) the second link (2 0 4) the first lever (2 1 1) the stop (2 2) the first stop (2 2 1) the second stop (222) Restricting part (2 3) First restricting lever (2 3 1) Second restricting lever (2 3 2) The introduction part (2 4) Circuit board (3) Through hole (3 0) First edge (3 1) Stop Workpiece (4) First leg (4 1) First end (4 1 1) Second end (4 1 2) First abutment bar (4 3) First abutment portion (431) Second leg (42 ) First end (421) Second end (422) Second abutment rod (4 4) Second abutment portion (441) Connecting rod (45) Fixed hook (5) Card slot (5 1) Mobile hook (6 1) Bracket (6 2) Screw (6 3) Motherboard (7) First standard hole (7 0) Page 15

551026

Page 16

Claims (1)

6 'Scope of patent application 1. A circuit board fixing method for fixing 2: circuit board to-device casing' The circuit board is redundant and has at least one substrate; the method includes the following steps: a ) Inserting at least one fixing member to the substrate, the: the restricting portion, the blocking portion and the two supporting portions of the restricting portion extend outward to form a shoulder portion, and the material is inverted into the L-in portion; The through hole of the board is correspondingly inserted into the solid C) Slide the hole of the electric component along the restricting portion against the blocking portion, at this time, the circuit to the d) use a blocking piece to stop the §HAI shoulder Those who intend to retreat. The trailing circuit board 'is to make the electric circuit 2'Η patent area} area Π on the substrate and can be transferred to the' position, if, to determine whether the circuit board is retreated or not. —Position 3, a method for fixing a circuit board / connecting a circuit board to a case of a device, _, a fixing shell having at least a base plate and a cover, the 3 plates having at least-a) inserting at least one fixing piece 5 (1) The method includes a base handle, μ and a restricting part, the stopper and the stopper and the stopper extending outwardly from the stopper ^ = the part is connected to the upper part and an upturned lead-in part; a shoulder part, And b) the through-hole to the through-hole of the circuit board, the machine includes a block-like shape, and a guide and guide portion is turned upside-down; the transparent support of the circuit board; the circuit board cannot be used in the block and a first The two-position through-hole, the machine has the following steps: including a stopper in the shape of an inverted L, and inserting the introduction part of the fixing part in the restricting part 4; 551026 VI. Scope of patent application ^ ^ -------C) Slide the circuit hole against the stopper along the bottom of the restricting section, at this time: until the transparent support of the circuit board; Supported by the shoulder d) The cover is covered on the substrate 4 so that the person cannot arbitrarily retreat.轺 轺 The carcass blocks the circuit board from 4 kinds of circuit board fixing devices. In the case of Tianjian, the case has-; fixed to a circuit board on one edge and-through holes. The board has at least a -side-one fixing member, which is provided on the base plate, and the A part, the collision part and the restricting part are related to each other, including: the 及 part and the -restricting extension = part, and the restricting part. To: turn outwards; ::: " τ The edge of the board where the circuit board cannot be added is directly facing the Yin-Yuan, tone J, the through-hole is correspondingly inserted into the fixture ^ 口 疋The V-shaped part of the piece slides under the restricting part, and slides to the supporting part and is the shoulder :: = The circuit board can be pivoted. The device described in item 4 'It should be placed in the restriction, so as to decide whether it should reach the dust. Circuit board No. 2 :: and-second-piece spoon 1. The device described in item 4 of the patent scope, wherein the body is a body, and the cover body covers the edge of the righteous brother when it is on the substrate. . τ low centimeter circuit board is a device as described in item 5 of the scope of patent application, wherein the first leg of the ㈣ is flat to the substrate, #including-第-端 和-第 18 页 J ^ i〇26 \ The scope of the patent application is extended to form abutment on the substrate. The second end is an upwardly extending plate, which is 1:;, which is flat to the base substrate at a distance from the first foot pole, and the younger brother— End and a second end, the first end is provided for pivoting at the first: J is directly facing the -foot, and the second end extends upward :: !! • The upper end is for pressing against the circuit board. The first edge; the connecting rod is connected with the & Shen Xin to connect the first and second abutting rods. The device of the chat pole is the L-shaped device as described in item 7 of the scope of patent application. Foot 9 is like L Shen /. The device described in item 7 of the patent scope 'is received by the user 1r0. The device described in item 7 of the scope of patent application has a U-shaped talent. Wherein the first contact portion supplies the electricity, the second portion of the second contact portion supplies the electricity, and the connection between the device 2 椁 described in item 7 of the patent application scope and the connecting rod is convex. The first edge forming the tray abuts. Withdrawal 12. The device described in item 7 of the scope of patent application. The other cup is u-shaped. Article _13. The device as described in item 7 of the scope of patent application: the connection between the f-rod and the connecting rod is convexly formed. The first edge of the plate abuts against 14, as described in item 7 of the scope of patent application. Device, wherein the base plate ^ is provided with at least two arc-shaped pieces facing each other, and the first end of the second leg of the stopper is inserted through the shape and two pivot holes between the base plate and the base plate. Page 19 551026 Feet, One Shoulder Sixth, the scope of patent application is inclusive. 15. A circuit board fixing device for fixing in a casing, the casing has a substrate, the circuit board has at least two edges and a through hole, and the device includes at least: A fixing part includes a part and a lead-in part, wherein the 'bent rod, the first and the second elbow rod are inserted into the base plate, and the second elbow rod is also provided on the base plate, and is diagonally opposite. The first rod is juxtaposed to the second leg, and includes a first bent rod and a second two bent rod, which are flat against the substrate at a distance, including a first end and a second end. The first end system is for the second end system to extend upward to form a first link; the first end of the rod, the second end system is extended upward to form a second continuous first end and a second end , The first end is for inserting X with respect to the first, a second end of a curved rod and a connecting rod; a second support rod, the other end of which is directed to a second link rod of the foot , The first gear, the first gear lever is a second limiting lever, and is parallel to the base gear lever and parallel to the second gear lever. : The shoulder 'includes a second second link, the second one's brother, a link' rod, and the other end faces the foot's first: connected to the # 批 如 ^ link; The system includes a first-bar system formed by the first-second bar of the shoulder portion and the second rod of the shoulder portion extending in two directions. The restriction portion includes a first-bar system connected to the stop portion. : And-plates, ... limit rods are connected to this stop ' Page 551 026 The green lead-in part restricts θ to form a -υ-shaped rod for connecting the limiter: the entrance part of ί is turned upward by an angle; "the through-hole is correspondingly inserted into the solid part a: it is directly opposite the lead-in part of the fixture, * Sliding under the control part == introduction part so that the circuit board can be supported by the shoulder along the _ to ° Hai "4; Tian's parts are for blocking the circuit board to those who cannot move back. The board is to : Ϊ́: ΐ The device described in item 15 of the patent scope, wherein the base bent rod Forming the rain :: The two arch-shaped pieces of the opposite shape are between the base plate and the base plate: ^ mouth holes for the first end of the foot of the fixing member and the first end of the -pay stroke respectively. 17. The device according to item 15 of the scope of patent application, wherein the first bent rod is L-shaped. 18. The device according to item 15 of the scope of patent application, wherein the second bent rod is L-shaped. 19. The device as described in item 5 of the scope of the patent application, wherein the restricting member is provided on the substrate and can be turned to a first position and a second position to determine whether to resist the circuit. The first edge of the board. 20. The device according to item 15 of the scope of patent application, wherein the restricting member includes a cover, and the cover is pressed against the first edge of the circuit board when the cover is closed on the substrate. 2 1. The device according to item 19 of the scope of patent application, wherein the restricting member comprises: a first leg, which is flat against the substrate, and includes a first end and a The device on page 21 is the device on the end of the first section 551026, the second end of the scope of patent application, the extension is formed-the first end is for pivotal installation on the substrate, the first-the first abutment for the abutment The first board pressed on the circuit board, which is a two-legged rod, is distanced from the base plate of the first leg. The first and second ends are opposite to the first leg. The second end is connected to the first edge of the circuit board; the second end is connected to the first and second ends. —Stolen buckle. The device described in item 21 of the scope of patent application. The pole is L-shaped. Second steal, the device described in the scope of patent application No. 21 Yiqing Cup is L-shaped. — 24. The device described in item 21 of the scope of patent application is U-shaped. ~ # 2 f. As described in item 21 of the scope of patent application, the first edge of the connection between the stem and the connecting rod is convex and abuts. -The device as described in item 21 of the scope of patent application-the arrival is U-shaped. 2. 27. If the scope of patent application: the first edge of the connection between the rod of item 2 丨 and the connecting rod is abutted against the plate 俜, the H-shape described in item 21 of the patent application scope] The two arcs M which are in the opposite shape are formed into two pivot holes for the first foot of the stopper, respectively, and are extended upwardly; the ground is flat on the base system and is pivotally formed on the upward extension. And 'where the first' where the first 'where the first' where the first abutment is for the electricity 'where the first' where the first abutment is for the electricity 'wherein the base is the first of the tie rods between the substrate End plug 551026 Page 23