PCB (Printed Circuit Board) back support tool for assembling LCD (Liquid Crystal Display)

Abstract

The invention belongs to the technical field of display accessories, and particularly relates to a PCB (printed circuit board) back support tool for assembling an LCD (liquid crystal display), the PCB back support tool is composed of a mounting seat and a bearing seat, the bearing seat is mounted at the top of the mounting seat, and splicing seats are mounted on two sides of the mounting seat; the mounting base is formed by combining two positioning blocks and a plurality of splicing blocks, the two positioning blocks are opposite in orientation, the splicing blocks are mounted between the two positioning blocks, and the purpose of adjusting the length of the mounting base is achieved by increasing or decreasing the number of the splicing blocks; the length of the mounting seat is adjusted by increasing or decreasing the number of the splicing blocks, the width can be increased by mounting the splicing seats, the length of the bearing seat can be increased by increasing the number of the plane blocks, the width of the bearing seat is synchronously increased along with the width expansion of the mounting seat, and the assembly requirements of LCD displays with different size requirements can be well met; components are flexibly connected and fixed through insertion, meshing and threaded connection, and assembly, disassembly and adjustment are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of display accessories, in particular to a PCB board back support tooling for assembling an LCD display. Background Art

[0002] PCB is a printed circuit board, which is the circuit board of LCD display. PCB is bonded with FPC cable on LCD panel through bonding machine to form an integrated body. The tooling for placing PCB in FOB bonding machine is back support. In traditional PCB back support tooling, there is a defect of fixed size. PCB boards of different sizes require back support tooling of different sizes. Therefore, back support tooling of different sizes needs to be prepared during processing. Back support tooling of different sizes is difficult to be compatible, which increases cost loss, lacks flexibility in deployment, and has low versatility. Therefore, we propose a PCB back support tooling for LCD display assembly. Summary of the invention

[0003] The object of the present invention is to provide a PCB board back support tool for LCD display assembly to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a PCB back support tool for LCD display assembly, which is composed of a mounting seat and a supporting seat, wherein the supporting seat is installed on the top of the mounting seat, and splicing seats are installed on both sides of the mounting seat; The mounting seat is composed of two positioning blocks and a plurality of splicing blocks, the two positioning blocks face each other, and a plurality of splicing blocks are installed between the two positioning blocks. The length of the mounting seat can be adjusted by increasing or decreasing the number of splicing blocks. The positioning block is composed of a telescopic block, a connecting block, and a fixed block. The fixed block is arranged at the outermost side. A fixing piece is installed at the bottom of the outer side of the fixed block, and a screw is screwed on the fixing piece. A telescopic block is fixed on the inner side of the fixed block. The telescopic block is slidably inserted in the inner cavity of the connecting block, and the length of the positioning block is changed by moving the telescopic block. Both ends of the splicing block are provided with vertically symmetrical butt joint grooves, and the side of the connecting block close to the splicing block is also provided with vertically symmetrical butt joint grooves, and plug-in blocks are installed in the butt joint grooves, and the plug-in blocks on the connecting block and the plug-in blocks on the splicing block are in mutually meshing installation positions, and the splicing block is connected with the positioning block through the mutual meshing of the plug-in blocks, or the splicing block is connected with the adjacent splicing block through the mutual meshing of the plug-in blocks; The top of the splicing block is evenly provided with supporting seat fixing holes, the bottom of the supporting seat is evenly provided with supporting seat fixing rods, and the supporting seat fixing rods are inserted downward into the supporting seat fixing holes, and the supporting seat fixing holes are damping holes with resistance, which increases the friction of the supporting seat fixing rods; The support seat is composed of a plane block, a first arc block, and a second arc block. Two second arc blocks are provided and face each other. The first arc block is provided on the inner side of the second arc block. The plane block is provided on the inner side of the first arc block. There are multiple plane blocks. Increasing the number of plane blocks prolongs the length of the support seat. The bottoms of the plane block, the first arc block, and the second arc block are all provided with support seat fixing rods. The splicing seats are installed on both sides of the mounting seat to extend the width of the mounting seat. The splicing seat is also composed of a positioning block, a splicing block, and a plug-in block. The splicing structure of the positioning block, the splicing block, and the plug-in block is also the same as the splicing structure of the mounting seat; A rotating shaft is arranged in the splicing block of the mounting seat, and two connecting pieces are sleeved on the rotating shaft. The two connecting pieces rotate independently, and when spliced, the two connecting pieces face the splicing seats on both sides respectively; a connecting hole is opened through the middle of each connecting piece; The splicing block in the splicing seat is provided with a splicing fixing bolt, the connecting piece in the mounting seat is rotated into the splicing block of the splicing seat, and then the splicing fixing bolt is downwardly fixed to fix the connecting piece, and the mounting seat and the splicing seat are fixed together through the connection between the connecting piece and the splicing fixing bolt, so as to complete the width expansion of the mounting seat; The second arc block is provided with a connector at one end close to the first arc block, a connector groove is provided at one end of the first arc block close to the second arc block, and a connector is provided at one end of the first arc block away from the second arc block; there are two types of plane blocks, one plane block is provided with a through connector groove, and the other plane block is provided with a connector at one end; the plane block, the first arc block, and the second arc block are installed with each other by connecting the connector and the connector groove, so as to realize flexible assembly and disassembly; The length and width extension of the mounting seat correspond to the length and width extension of the supporting seat; the plane block, the first arc block and the second arc block on the mounting seat constitute the main supporting seat, and the plane block, the first arc block and the second arc block on the splicing seat constitute the side supporting seat; the plane block, the first arc block and the second arc block of the main supporting seat are both installed with lateral plates on both sides, and the plane block, the first arc block and the second arc block of the side supporting seat are both provided with lateral grooves on the side close to the main supporting seat, and the main supporting seat and the side supporting seat are fixed by docking the lateral plates with the lateral grooves; A static electricity removal device is arranged on one side of the supporting seat, and the static electricity removal device consists of an installation panel and an ion wind rod. Three installation blocks are arranged on the side of the installation panel close to the supporting seat; a panel groove is opened on the side of the side plate close to the static electricity removal device, and the installation block on the static electricity removal device is inserted into the panel groove; the static electricity removal device is fixed on any three adjacent blocks in the supporting seat.

[0005] Preferably, a locking bolt is screwed on the top of the connecting block, and the bottom of the locking bolt abuts against the top of the telescopic block when it is downward, so that the telescopic block is fixed by the friction between the locking bolt and the telescopic block.

[0006] Preferably, one end of the plug-in block is provided with an extension plate extending outward, the extension plate is symmetrically provided with penetrating extension plate fixing holes, a penetrating plug-in plate fixing hole is provided in the middle of the extension plate, a plug-in plate fixing bolt is screwed into the plug-in plate fixing hole, and adjacent plug-in plates are meshed with each other and fixed using the plug-in plate fixing bolts; The tops of the positioning block and the splicing block are both provided with extension plate locking bolts near the plug-in block, and the extension plate locking bolts are screwed downward into the extension plate fixing holes to fix the plug-in block and the splicing block or the positioning block together.

[0007] Preferably, buckle holes are provided at the top or bottom ends of the two connecting pieces, and upper and lower elastic buckles are provided on both sides of the splicing block of the mounting seat, and the two elastic buckles correspond to the upper and lower connecting pieces respectively. When the connecting piece is received in the splicing block, the connecting piece is fixed by the elastic buckle; The elastic buckle is installed in the inner cavity of the splicing block. The elastic buckle is composed of an adjusting pin and a sliding rod. The adjusting pin and the sliding rod are both sleeved with springs. A buckle seat is installed at the bottom of the sliding rod. An extension rod extending outward is arranged at the bottom of the buckle seat. The end of the extension rod is arranged as a circular abutment joint. When the sliding rod moves outward, the abutment joint is inserted into the buckle hole of the connecting piece, and the connecting piece is fixed by the abutment joint of the sliding rod; The buckle seat is provided with inclined surfaces on both sides, and two adjusting pins are provided and clamped on both sides of the buckle seat; an end of the adjusting pin close to the buckle seat is provided with an inclined abutting surface, the abutting surface is located below the inclined surface of the buckle seat, and a ball is provided on the bottom surface of the buckle seat; the abutting surface and the inclined surface of the buckle seat are mutually engaged, and when the adjusting pin moves inward, the buckle seat and the sliding rod are pushed upward, and the abutting head is separated from the connection with the connecting piece, and the connecting piece is unfastened at this time; When the adjusting pin moves outward, the sliding rod moves downward driven by the spring, and moves the abutment head closer to the connecting piece; the ball is used to assist the adjusting pin in moving, and the friction of the abutment surface is reduced by the rolling of the ball.

[0008] Preferably, a pin handle is fixed to the outer end of the adjusting pin, and a retaining ring is provided at the junction of the pin handle and the adjusting pin for limiting. When the pin handle moves inward, the retaining ring squeezes the spring on the adjusting pin, and after the squeezing is released, the spring on the adjusting pin rebounds to the retaining ring to restore the initial position of the adjusting pin; one end of the spring on the sliding rod abuts against the buckle seat, and the other end abuts against the inner wall of the splicing block; The pin handle extends to the outside of the splicing block, and a receiving groove is provided on one side of the splicing block in the splicing seat close to the pin handle. When the splicing block of the mounting seat abuts against the splicing block of the splicing seat, the pin handle is inserted into the receiving groove.

[0009] Preferably, a hollow plate is embedded in the top of the supporting seat, a prismatic hole is provided in the middle of the inner cavity of the hollow plate, hollow slits are provided at the top and bottom of the hollow plate, and the hollow slits are interconnected with the prismatic hole; air permeable grooves are symmetrically provided on the top of the sides of the plane block, the first arc block and the second arc block, and the air permeable grooves are interconnected with the hollow plate inwardly, and heat is dissipated through the hollow plate; a hollow plate is also embedded in the top of the connecting head, the hollow plate on the connecting head is interconnected with the hollow plate above, and the inner cavity of the connecting head is hollow.

[0010] Preferably, the side plate is symmetrically provided with plug pins on one side close to the supporting seat, and the plane block, the first arc block, the second arc block and the connecting head are symmetrically provided with plug pin mounting grooves, and the side plate is flexibly installed on the supporting seat through the plug pins and the plug pin mounting grooves.

[0011] Preferably, a latch is provided in the lateral plate, the latch is composed of a latch rod, a reset spring, and a toggle bolt, a cavity for the latch to move is provided inside the lateral plate, a sliding groove is provided on the top of the lateral plate, the toggle bolt is plugged into the sliding groove, the toggle bolt moves in the sliding groove and pushes one end of the latch rod into the panel groove, a latch hole is provided transversely through the mounting block, when the mounting block is plugged into the panel groove, the movable latch rod is plugged into the latch hole to fix the static electricity removal device; A limiting groove is provided in the inner cavity of the panel groove on one side facing the latch rod, a protruding plug is provided at one end of the latch rod, the plug is plugged into the limiting groove, and the limiting groove guides and limits the latch rod.

[0012] Preferably, a return spring is sleeved on the side of the latch rod away from the panel slot, and an abutment plate and a limit plate are respectively arranged at both ends of the return spring, the abutment plate is fixed on the latch rod, and the limit plate is fixed in the inner cavity of the lateral plate; when the toggle bolt is pushed in the reverse direction, the abutment plate and the limit plate squeeze the return spring, and the latch rod is stored in the lateral plate at this time, and the latch rod releases the fixation to the mounting block; when the toggle bolt is released, the return spring pushes the abutment plate and the latch rod to move toward the panel slot through reset, so as to achieve the purpose of fixation; A locking groove is vertically opened on one side of the sliding groove, and a latch positioning plate is slidably arranged in the locking groove. When the latch rod is retracted, the latch positioning plate is pushed, and the latch positioning plate is used to block the rebound of the latch rod, so that the latch rod is stored and fixed.

[0013] Compared with the prior art, this solution provides a flexibly adjustable PCB back support tooling, which has the following advantages: Size adjustment: The length of the mounting base can be adjusted by increasing or decreasing the number of splicing blocks, and the width can be expanded by installing the splicing base. The supporting base can also be extended by increasing the number of plane blocks. Its width is expanded synchronously with the expansion of the mounting base width, which can better meet the assembly requirements of LCD monitors with different size requirements; the components are flexibly connected and fixed by plugging, meshing and screwing, which is convenient for assembly, disassembly and adjustment; The elastic buckle uses adjustment pins, sliding rods, springs and other components to firmly fix the connector when it is stored, and can be easily unlocked, further enhancing the stability of the overall structure and convenience of use; Heat dissipation of tooling: A hollow plate is embedded in the top of the support seat, and is interconnected with the air-permeable grooves on the sides of the plane block, the first arc block, and the second arc block, forming an effective heat dissipation channel, which helps to dissipate the heat generated in time during the assembly process of the LCD display and ensure the normal operation of the equipment; Equipped with anti-static device: An anti-static device consisting of a mounting panel and an ion wind rod is set on one side of the support seat, which effectively reduces the impact of static electricity on electronic components during the assembly process of the LCD display and improves assembly quality and product performance; the anti-static device can be conveniently fixed on the support seat through the operation of the pins in the side plate, and the installation method of each component is relatively simple, easy to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the back support tooling of the present invention; Figure 2 It is a schematic diagram of the mounting base of the present invention; Figure 3 It is a schematic diagram of the supporting seat of the present invention; Figure 4 This is a schematic diagram of the splicing of the back support tooling of the present invention; Figure 5 It is a schematic diagram of the splicing seat of the present invention; Figure 6 This is a schematic diagram of the mounting seat splicing block of the present invention; Figure 7 It is a schematic diagram of the plug-in block of the present invention; Figure 8 This is a first schematic diagram of a positioning block of the present invention; Fig. 9 This is a second schematic diagram of the positioning block of the present invention; Fig.10 This is a schematic diagram of the elastic card structure of the present invention; Fig.11 For the present invention Fig.10 Enlarged view of part A in the middle; Fig.12 For the present invention Fig.10 Enlarged view of middle part B; Fig.13This is a schematic diagram of disassembling the support seat of the present invention; Fig.14 This is a schematic diagram of arc block splicing of the present invention; Fig.15 This is a schematic diagram of the installation of the arc-shaped hollow plate of the present invention; Fig.16 For the present invention Fig.15 Schematic diagram of the plane block in; Fig.17 It is a schematic diagram of the hollow plate of the present invention; Fig.18 This is a schematic diagram of the disassembly of the lateral plate of the present invention; Fig.19 This is a schematic diagram of the installation of the static electricity removal device and the side plate of the present invention; Fig. 20 The static electricity removal device installation structure on the side plate of the present invention; Fig.21 This is a schematic diagram of the latch structure of the present invention; Fig. 22 For the present invention Fig. 20 Schematic diagram of the middle slideway.

[0015] In the figure: 10 mounting seat; 101 positioning block, 101-1 fixing card, 101-2 telescopic block, 101-3 connecting block, 101-4 fixing block, 101-5 locking bolt; 102 splicing block, 102-1 rotating shaft, 102-2 supporting seat fixing hole, 102-3 extension plate locking bolt, 102-4 connecting piece, 102-5 connecting hole, 102-6 buckle hole; 103 plug-in block, 103-1 plug-in plate fixing bolt, 103-2 extension plate, 103-3 docking slot, 103-4 plug-in block fixing hole, 103-5 extension plate fixing hole; 104 elastic buckle, 104-1 adjusting pin, 104-2 abutting surface, 104-3 sliding rod, 104-4 buckle seat, 104-5 spring, 104-6 ball, 104-7 pin handle; 20 supporting seat, 201 plane block, 202 first arc block, 203 second arc block, 204 supporting seat fixing rod, 205 connecting groove, 206 connecting head, 208 lateral groove, 210 air permeable groove; 207 side plate, 207-1 plug pin, 207-2 limit slot, 207-3 panel slot, 207-4 slide slot, 207-6 latch positioning plate; 207-5 latch, 207-5-1 latch rod, 207-5-2 return spring, 207-5-3 toggle bolt, 207-5-4 abutment plate, 207-5-5 limit plate; 209 hollow plate, 209-1 hollow seam, 209-2 prism hole; 30 splicing seat, 301 splicing fixing bolt; 40: anti-static device, 401: mounting panel, 402: mounting block, 403: latch hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] Example: See also Figure 1-22 , The present invention provides a PCB board back support tooling technical solution for LCD display assembly: by the mounting seat 10 and the supporting seat 20, the supporting seat 20 is mounted on the top of the mounting seat 10, the mounting seat 10 is mounted on both sides of the splicing seat 30; The mounting seat 10 is composed of two positioning blocks 101 and a plurality of splicing blocks 102. The two positioning blocks 101 face each other, and a plurality of splicing blocks 102 are installed between the two positioning blocks 101. The length of the mounting seat 10 can be adjusted by increasing or decreasing the number of splicing blocks 102. The positioning block 101 is composed of a telescopic block 101-2, a connecting block 101-3, and a fixed block 101-4. The fixed block 101-4 is arranged at the outermost side. A fixing piece 101-1 is installed at the bottom of the outer side surface of the fixing block 101-4. The fixing piece 101-1 is screwed with screws. A telescopic block 101-2 is fixed to the inner side of the fixed block 101-4. The telescopic block 101-2 is slidably inserted into the inner cavity of the connecting block 101-3. The length of the positioning block 101 is changed by the movement of the telescopic block 101-2. The length is fine-tuned on the basis of the positioning block 101. A locking bolt 101-5 is screwed to the top of the connecting block 101-3. When the bottom of the locking bolt 101-5 is downward, it abuts against the top of the telescopic block 101-2. The telescopic block 101-2 is fixed by the friction between the locking bolt 101-5 and the telescopic block 101-2. Both ends of the splicing block 102 are provided with vertically symmetrical docking grooves 103-3, and the side of the connecting block 101-3 close to the splicing block 102 is also provided with vertically symmetrical docking grooves 103-3, and the plug-in blocks 103 are installed in the docking grooves 103-3. The plug-in blocks 103 on the connecting block 101-3 and the plug-in blocks 103 on the splicing block 102 are in a mutually meshing installation position, and the splicing block 102 is connected with the positioning block 101 through the mutual meshing of the plug-in blocks 103, or the splicing block 102 is connected with the adjacent splicing block 102 through the mutual meshing of the plug-in blocks 103. An extension plate 103-2 extending outward is provided at one end of the plug-in block 103, and a through extension plate fixing hole 103-5 is symmetrically opened on the extension plate 103-2, and a through plug-in plate fixing hole 103-4 is opened in the middle of the extension plate 103-2, and a plug-in plate fixing bolt 103-1 is screwed into the plug-in plate fixing hole 103-4, and adjacent plug-in plates 103 are meshed with each other and fixed using the plug-in plate fixing bolt 103-1; The top of the positioning block 101 and the splicing block 102 near the plug-in block 103 are both installed with extension plate locking bolts 102-3, and the extension plate locking bolts 102-3 are screwed downward into the extension plate fixing holes 103-5 to fix the plug-in block 103 and the splicing block 102 or the positioning block 101 together; The top of the splicing block 102 is evenly provided with a support seat fixing hole 102-2, and the bottom of the support seat 20 is evenly provided with a support seat fixing rod 204, and the support seat fixing rod 204 is inserted downward into the support seat fixing hole 102-2. The support seat fixing hole 102-2 is a damping hole with resistance, which increases the friction of the support seat fixing rod 204; The support seat 20 is composed of a plane block 201, a first arc block 202, and a second arc block 203. Two second arc blocks 203 are provided and face each other. The first arc block 202 is provided on the inner side of the second arc block 203, and the plane block 201 is provided on the inner side of the first arc block 202. There are multiple plane blocks 201, and the length of the support seat 20 is extended by increasing the number of plane blocks 201. The bottoms of the plane blocks 201, the first arc block 202, and the second arc block 203 are all provided with support seat fixing rods 204. The splicing seats 30 are installed on both sides of the mounting seat 10 to extend the width of the mounting seat 10. The splicing seat 30 is also composed of a positioning block 101, a splicing block 102, and a plug-in block 103. The splicing structure of the positioning block 101, the splicing block 102, and the plug-in block 103 is also the same as the splicing structure of the mounting seat 10; A rotating shaft 102-1 is provided in the splicing block 102 of the mounting seat 10. Two connecting members 102-4 are sleeved on the rotating shaft 102-1. The two connecting members 102-4 rotate independently, and when spliced, the two connecting members 102-4 face the splicing seats 30 on both sides respectively; the middle of the connecting members 102-4 is penetrated by a connecting hole 102-5; The splicing block 103 in the splicing seat 30 is provided with a splicing fixing bolt 301, and the connecting piece 102-4 in the mounting seat 10 is rotated into the splicing block 30 of the splicing seat 30, and then the splicing fixing bolt 301 fixes the connecting piece 102-4 downward, and the mounting seat 10 and the splicing seat 30 are fixed together through the connection between the connecting piece 102-4 and the splicing fixing bolt 301, so as to complete the width expansion of the mounting seat 10; A supporting seat 20 is also provided on the top of the splicing seat 30, and adjacent supporting seats 20 abut against each other, and the width of the supporting seats 20 is also expanded synchronously; A buckle hole 102-6 is provided at the top or bottom end of the two connecting pieces 102-4, and two upper and lower elastic buckles 104 are provided on both sides of the splicing block 103 of the mounting seat 10. The two elastic buckles 104 correspond to the upper and lower connecting pieces 102-4 respectively. When the connecting piece 102-4 is received in the splicing block 103, the connecting piece 102-4 is fixed by the elastic buckles 104; The elastic buckle 104 is installed in the inner cavity of the splicing block 103. The elastic buckle 104 is composed of an adjusting pin 104-1 and a sliding rod 104-3. The adjusting pin 104-1 and the sliding rod 104-3 are sleeved with a spring 104-5. The bottom of the sliding rod 104-3 is installed with a buckle seat 104-4. The bottom of the buckle seat 104-4 is provided with an extension rod extending outward, and the end of the extension rod is provided as a circular abutment joint. When the sliding rod 104 - 3 moves outward, the abutment joint is inserted into the buckle hole 102 - 6 of the connecting member 102 - 4 , and the connecting member 102 - 4 is fixed by the abutment joint of the sliding rod 104 - 3 ; Inclined surfaces are provided on both sides of the buckle seat 104-4, and two adjusting pins 104-1 are provided and clamped on both sides of the buckle seat 104-4; an inclined abutting surface 104-2 is provided at one end of the adjusting pin 104-1 close to the buckle seat 104-4, and the abutting surface 104-2 is located below the inclined surface of the buckle seat 104-4, and a ball 104-6 is provided on the bottom surface of the buckle seat 104-4; the abutting surface 104-2 and the inclined surface of the buckle seat 104-4 are mutually engaged, and when the adjusting pin 104-1 moves inward, the buckle seat 104-4 and the sliding rod 104-3 are pushed upward, and the abutting head is separated from the connection with the connecting member 102-4, and the connecting member 102-4 is unfastened at this time; When the adjusting pin 104-1 moves outward, the sliding rod 104-3 moves downward under the drive of the spring 104-5, and moves the abutting head closer to the connecting member 102-4; the ball 104-6 is used to assist the adjusting pin 104-1 to move, and the friction force of the abutting surface 104-2 is reduced by the rolling of the ball 104-6; A pin handle 104-7 is fixed to the outer end of the adjusting pin 104-1, and a retaining ring is provided at the connection between the pin handle 104-7 and the adjusting pin 104-1 for limiting. When the pin handle 104-7 moves inward, the retaining ring squeezes the spring 104-5 on the adjusting pin 104-1. After the squeezing is released, the spring 104-5 on the adjusting pin 104-1 rebounds to the retaining ring to restore the initial position of the adjusting pin 104-1; one end of the spring 104-5 on the sliding rod 104-3 abuts against the buckle seat 104-4, and the other end abuts against the inner wall of the splicing block 103; The pin handle 104-7 extends to the outside of the splicing block 103. A receiving groove is provided on one side of the splicing block 103 in the splicing seat 30 near the pin handle 104-7. When the splicing block 103 of the mounting seat 10 and the splicing block 103 of the splicing seat 30 abut against each other, the pin handle 104-7 is inserted into the receiving groove. The second arc block 203 is provided with a connector 206 at one end close to the first arc block 202, a connecting groove 205 is provided at one end of the first arc block 202 close to the second arc block 203, and a connector 206 is provided at one end of the first arc block 202 away from the second arc block 203; there are two types of plane blocks 201, one plane block 201 is provided with a through connecting groove 205, and the other plane block 201 is provided with a connector 206 at one end; the plane block 201, the first arc block 202, and the second arc block 203 are installed with each other by connecting the connector 206 and the connecting groove 205, so as to realize flexible assembly and disassembly; The length and width expansion of the mounting seat 10 correspond to the length and width expansion of the supporting seat 20; the plane block 201, the first arc block 202, and the second arc block 203 on the mounting seat 10 constitute the main supporting seat, and the plane block 201, the first arc block 202, and the second arc block 203 on the splicing seat 30 constitute the side supporting seat; the plane block 201, the first arc block 202, and the second arc block 203 of the main supporting seat are both installed with lateral plates 207 on both sides, and the plane block 201, the first arc block 202, and the second arc block 203 of the side supporting seat are close to the main supporting seat. The side groove 208 is opened, and the main supporting seat and the side supporting seat are fixed by docking the side plate 207 with the lateral groove 208; A hollow plate 209 is embedded in the top of the support seat 20, and a prismatic hole 209-2 is provided in the middle of the inner cavity of the hollow plate 209. Hollow slits 209-1 are provided at the top and bottom of the hollow plate 209, and the hollow slits 209-1 are interconnected with the prismatic hole 209-2; vent grooves 210 are symmetrically provided on the top of the side of the plane block 201, the first arc block 202, and the second arc block 203, and the vent grooves 210 are interconnected with the hollow plate 209 inwardly, and heat is dissipated through the hollow plate 209; a hollow plate 209 is also embedded in the top of the connector 206, and the hollow plate 209 on the connector 206 is interconnected with the hollow plate 209 above, and the inner cavity of the connector 206 is hollow; A plug pin 207-1 is symmetrically arranged on one side of the side plate 207 close to the supporting seat 20, and plug pin installation grooves are symmetrically opened on the plane block 201, the first arc block 202, the second arc block 203, and the connector 206. The side plate 207 is flexibly installed on the supporting seat 20 through the plug pin 207-1 and the plug pin installation groove; A static electricity removal device 40 is provided on one side of the support seat 20. The static electricity removal device 40 is composed of a mounting panel 401 and an ion wind rod. Three mounting blocks 402 are provided on the side of the mounting panel 401 close to the support seat 20. A panel slot 207-3 is provided on the side of the lateral plate 207 close to the static electricity removal device 40. The mounting blocks 402 on the static electricity removal device 40 are plugged into the panel slot 207-3. The static electricity removal device 40 is fixed on any three adjacent blocks in the support seat 20. The ion wind rod generates a large number of air masses with positive and negative charges. When the surface of an object is negatively charged, it will attract the positive charges in the radiation area; when the surface of an object is positively charged, it will attract the negative charges in the radiation area, so that the static electricity on the surface of the object is neutralized, achieving the purpose of eliminating static electricity on the PCB board; its structure is relatively simple, and it can be customized and installed according to different usage scenarios and requirements, and can be flexibly fixed on the support seat 20; A latch 207-5 is provided in the lateral plate 207, and the latch 207-5 consists of a latch rod 207-5-1, a return spring 207-5-2, and a toggle bolt 207-5-3. A cavity is provided inside the lateral plate 207 for the latch 207-5 to move. A sliding groove 207-4 is provided on the top of the lateral plate 207. The toggle bolt 207-5-3 is inserted into the sliding groove 207-4. The toggle bolt 207-5-3 moves in the sliding groove 207-4 and pushes one end of the latch rod 207-5-1 into the panel groove 207-3. A latch hole 403 is provided transversely through the mounting block 402. When the mounting block 402 is inserted into the panel groove 207-3, the movable latch rod 207-5-1 is inserted into the latch hole 403 to fix the static electricity removal device 40. A limiting groove 207-2 is provided in the inner cavity of the panel groove 207-3 on one side facing the latch rod 207-5-1. A protruding plug is provided at one end of the latch rod 207-5-1. The plug is plugged into the limiting groove 207-2. The limiting groove 207-2 guides and limits the latch rod 207-5-1. A return spring 207-5-2 is sleeved on one side of the latch rod 207-5-1 away from the panel slot 207-3. Abutment plates 207-5-4 and limit plates 207-5-5 are provided at both ends of the return spring 207-5-2. The abutment plates 207-5-2 are fixed on the latch rod 207-5-1, and the limit plates 207-5-5 are fixed in the inner cavity of the side plate 207. When the toggle bolt 207-5-3 is pushed in the reverse direction, the abutment plates 207-5-4 and the limit plates 207-5-5 are fixed in the inner cavity of the side plate 207. 7-5-4 and the limit plate 207-5-5 squeeze the reset spring 207-5-2, and the latch rod 207-5-1 is now stored in the side plate 207, and the latch rod 207-5-1 releases the fixation to the mounting block 402; when the toggle bolt 207-5-3 is loosened, the reset spring 207-5-2 pushes the abutment plate 207-5-4 and the latch rod 207-5-1 to move toward the panel slot 207-3 through reset, thereby achieving the purpose of fixation; A locking groove is vertically opened on one side of the sliding groove 207-4, and a latch positioning plate 207-6 is slidably arranged in the locking groove. When the latch rod 207-5-1 is retracted, the latch positioning plate 207-6 is pushed, and the latch positioning plate 207-6 is used to block the rebound of the latch rod 207-5-1, so that the latch rod 207-5-1 is stored and fixed.

[0019] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB back support tool for assembling an LCD display, comprising a mounting seat (10) and a supporting seat (20), wherein the supporting seat (20) is mounted on the top of the mounting seat (10), and splicing seats (30) are mounted on both sides of the mounting seat (10), characterized in that: The mounting seat (10) is composed of two positioning blocks (101) and a plurality of splicing blocks (102), the two positioning blocks (101) are facing each other, and the plurality of splicing blocks (102) are mounted between the two positioning blocks (101), and the length of the mounting seat (100) can be adjusted by increasing or decreasing the number of splicing blocks (102); The positioning block (101) is composed of a telescopic block (101-2), a connecting block (101-3), and a fixed block (101-4); the fixed block (101-4) is arranged at the outermost side; a fixing piece (101-1) is installed at the bottom of the outer side surface of the fixed block (101-4); a screw is screwed onto the fixing piece (101-1); a telescopic block (101-2) is fixed to the inner side of the fixed block (101-4); the telescopic block (101-2) is slidably inserted into the inner cavity of the connecting block (101-3); and the length of the positioning block (101) is changed by the movement of the telescopic block (101-2); Both end sides of the splicing block (102) are provided with vertically symmetrical butt joint grooves (103-3); the side of the connecting block (101-3) close to the splicing block (102) is also provided with vertically symmetrical butt joint grooves (103-3); a plug-in block (103) is installed in the butt joint groove (103-3); the plug-in block (103) on the connecting block (101-3) and the plug-in block (103) on the splicing block (102) are in a mutually meshing installation position; the splicing block (102) and the positioning block (101) are connected by mutual meshing of the plug-in blocks (103); or the splicing block (102) and the adjacent splicing block (102) are connected by mutual meshing of the plug-in blocks (103); The top of the splicing block (102) is evenly provided with support seat fixing holes (102-2), the bottom of the support seat (20) is evenly provided with support seat fixing rods (204), and the support seat fixing rods (204) are inserted downward into the support seat fixing holes (102-2), and the support seat fixing holes (102-2) are damping holes with resistance, thereby increasing the friction force of the support seat fixing rods (204); The support seat (20) is composed of a plane block (201), a first arc block (202), and a second arc block (203); two second arc blocks (203) are provided and face each other; the first arc block (202) is provided on the inner side of the second arc block (203); the plane block (201) is provided on the inner side of the first arc block (202); a plurality of plane blocks (201) are provided, and increasing the number of plane blocks (201) prolongs the length of the support seat (20); and a support seat fixing rod (204) is provided at the bottom of each of the plane block (201), the first arc block (202), and the second arc block (203); The splicing seats (30) are installed on both sides of the mounting seat (10) to extend the width of the mounting seat (10); the splicing seats (30) are also composed of positioning blocks (101), splicing blocks (102), and plug-in blocks (103); and the splicing structure of the positioning blocks (101), splicing blocks (102), and plug-in blocks (103) is also the same as the splicing structure of the mounting seat (10); A rotating shaft (102-1) is arranged in the splicing block (102) of the mounting seat (10), and two connecting pieces (102-4) are sleeved on the rotating shaft (102-1). The two connecting pieces (102-4) rotate independently, and when spliced, the two connecting pieces (102-4) face the splicing seats (30) on both sides respectively; and a connecting hole (102-5) is provided through the middle of each connecting piece (102-4); The splicing block (103) in the splicing seat (30) is provided with a splicing fixing bolt (301), the connecting piece (102-4) in the mounting seat (10) is rotated into the splicing block (30) of the splicing seat (30), and then the splicing fixing bolt (301) fixes the connecting piece (102-4) downward, and the mounting seat (10) and the splicing seat (30) are fixed together through the connection between the connecting piece (102-4) and the splicing fixing bolt (301), thereby completing the width expansion of the mounting seat (10); The second arc block (203) is provided with a connector (206) at one end close to the first arc block (202), a connecting groove (205) is provided at one end of the first arc block (202) close to the second arc block (203), and a connector (206) is provided at one end of the first arc block (202) away from the second arc block (203); there are two types of plane blocks (201), one plane block (201) is provided with a through connecting groove (205), and the other plane block (201) is provided with a connector (206) at one end; the plane block (201), the first arc block (202), and the second arc block (203) are installed with each other by connecting the connector (206) and the connecting groove (205), so as to realize flexible assembly and disassembly; The length and width of the mounting seat (10) are extended to correspond to the length and width of the supporting seat (20); the plane block (201), the first arc block (202), and the second arc block (203) on the mounting seat (10) form a main supporting seat, and the plane block (201), the first arc block (202), and the second arc block (203) on the splicing seat (30) form a side supporting seat; side plates (207) are installed on both sides of the plane block (201), the first arc block (202), and the second arc block (203) of the main supporting seat, and side grooves (208) are opened on the side of the plane block (201), the first arc block (202), and the second arc block (203) of the side supporting seat close to the main supporting seat, and the main supporting seat and the side supporting seat are fixed by docking the side plates (207) and the side grooves (208); A static electricity removal device (40) is arranged on one side of the support seat (20), the static electricity removal device (40) comprising a mounting panel (401) and an ion wind rod, three mounting blocks (402) being arranged on a side of the mounting panel (401) close to the support seat (20); a panel slot (207-3) is provided on a side of the lateral plate (207) close to the static electricity removal device (40), the mounting blocks (402) on the static electricity removal device (40) being inserted into the panel slot (207-3); and the static electricity removal device (40) is fixed on any three adjacent blocks in the support seat (20).

2. The PCB back support tool for LCD display assembly according to claim 1, characterized in that: A locking bolt (101-5) is screwed onto the top of the connecting block (101-3); when the bottom of the locking bolt (101-5) is downwardly facing, it abuts against the top of the telescopic block (101-2); the telescopic block (101-2) is fixed by friction between the locking bolt (101-5) and the telescopic block (101-2).

3. The PCB back support tool for LCD display assembly according to claim 1, characterized in that: An outwardly extending extension plate (103-2) is provided at one end of the plug-in block (103); the extension plate (103-2) is symmetrically provided with extending plate fixing holes (103-5) extending therethrough; a plug-in plate fixing hole (103-4) extending therethrough is provided in the middle of the extension plate (103-2); a plug-in plate fixing bolt (103-1) is screwed into the plug-in plate fixing hole (103-4); adjacent plug-in plates (103) are mutually meshed and fixed using the plug-in plate fixing bolts (103-1); An extension plate locking bolt (102-3) is installed at the top of the positioning block (101) and the splicing block (102) near the plug-in block (103), and the extension plate locking bolt (102-3) is screwed downward into the extension plate fixing hole (103-5) to fix the plug-in block (103) and the splicing block (102) or the positioning block (101) together.

4. The PCB back support tool for LCD display assembly according to claim 1, characterized in that: A buckle hole (102-6) is provided at the top or bottom end of the two connecting pieces (102-4); upper and lower elastic buckles (104) are provided on both sides of the splicing block (103) of the mounting seat (10); the two elastic buckles (104) correspond to the upper and lower connecting pieces (102-4) respectively; when the connecting piece (102-4) is received in the splicing block (103), the connecting piece (102-4) is fixed by the elastic buckles (104); The elastic buckle (104) is installed in the inner cavity of the splicing block (103), and the elastic buckle (104) is composed of an adjusting pin (104-1) and a sliding rod (104-3), and a spring (104-5) is sleeved on the adjusting pin (104-1) and the sliding rod (104-3), and a buckle seat (104-4) is installed at the bottom of the sliding rod (104-3), and an extension rod extending outward is arranged at the bottom of the buckle seat (104-4), and the end of the extension rod is arranged to be a circular abutment joint; When the sliding rod (104-3) moves outward, the abutment joint is inserted into the buckle hole (102-6) of the connecting piece (102-4), and the connecting piece (102-4) is fixed by the abutment joint of the sliding rod (104-3); Inclined surfaces are provided on both sides of the buckle seat (104-4); two adjusting pins (104-1) are provided and clamped on both sides of the buckle seat (104-4); an inclined abutting surface (104-2) is provided on one end of the adjusting pin (104-1) close to the buckle seat (104-4); the abutting surface (104-2) is located below the inclined surface of the buckle seat (104-4); a ball (104-6) is provided on the bottom surface of the buckle seat (104-4); the abutting surface (104-2) and the inclined surface of the buckle seat (104-4) are mutually engaged; when the adjusting pin (104-1) moves inward, the buckle seat (104-4) and the sliding rod (104-3) are lifted upward, and the abutting head is separated from the connection with the connecting member (102-4), and the connecting member (102-4) is now released and fixed; When the adjusting pin (104-1) moves outward, the sliding rod (104-3) moves downward under the drive of the spring (104-5), and the abutment head is moved closer to the connecting piece (102-4) through the movement; the ball (104-6) is used to assist the adjusting pin (104-1) in moving, and the friction force of the abutment surface (104-2) is reduced through the rolling of the ball (104-6).

5. The PCB back support tool for LCD display assembly according to claim 4, characterized in that: A pin handle (104-7) is fixed to the outer end of the adjusting pin (104-1); a retaining ring is provided at the connection between the pin handle (104-7) and the adjusting pin (104-1) for limiting; when the pin handle (104-7) moves inward, the retaining ring squeezes the spring (104-5) on the adjusting pin (104-1); after the squeezing is released, the spring (104-5) on the adjusting pin (104-1) rebounds against the retaining ring to restore the initial position of the adjusting pin (104-1); one end of the spring (104-5) on the sliding rod (104-3) abuts against the buckle seat (104-4), and the other end abuts against the inner wall of the splicing block (103); The pin handle (104-7) extends to the outside of the splicing block (103); a receiving groove is provided on a side of the splicing block (103) in the splicing seat (30) close to the pin handle (104-7); when the splicing block (103) of the mounting seat (10) and the splicing block (103) of the splicing seat (30) abut against each other, the pin handle (104-7) is inserted into the receiving groove.

6. The PCB back support tool for LCD display assembly according to claim 1, characterized in that: A hollow plate (209) is embedded in the top of the support seat (20), a prismatic hole (209-2) is provided in the middle of the inner cavity of the hollow plate (209), and hollow slits (209-1) are provided at the top and bottom of the hollow plate (209), and the hollow slits (209-1) and the prismatic hole (209-2) are interconnected; venting grooves (210) are symmetrically provided at the top of the side surfaces of the plane block (201), the first arc block (202), and the second arc block (203), and the venting grooves (210) are interconnected inwardly with the hollow plate (209), and heat is dissipated through the hollow plate (209); a hollow plate (209) is also embedded in the top of the connector (206), and the hollow plate (209) on the connector (206) is interconnected with the hollow plate (209) above, and the inner cavity of the connector (206) is hollow.

7. The PCB back support tool for LCD display assembly according to claim 1, characterized in that: The side plate (207) is symmetrically provided with plug pins (207-1) on one side close to the supporting seat (20), and the plane block (201), the first arc block (202), the second arc block (203), and the connector (206) are symmetrically provided with plug pin installation grooves, and the side plate (207) is flexibly installed on the supporting seat (20) through the plug pins (207-1) and the plug pin installation grooves.

8. The PCB back support tool for LCD display assembly according to claim 1, characterized in that: A latch (207-5) is arranged inside the lateral plate (207), and the latch (207-5) is composed of a latch rod (207-5-1), a return spring (207-5-2), and a toggle bolt (207-5-3). A cavity for the latch (207-5) to move is provided inside the lateral plate (207), and a sliding groove (207-4) is provided on the top of the lateral plate (207). The toggle bolt (207-5-3) is plugged into the sliding groove (207-4). 4), the toggle bolt (207-5-3) moves in the sliding groove (207-4) and pushes one end of the latch rod (207-5-1) into the panel groove (207-3), a latch hole (403) is horizontally penetrated on the mounting block (402), and when the mounting block (402) is plugged into the panel groove (207-3), the movable latch rod (207-5-1) is plugged into the latch hole (403) to fix the static electricity removal device (40); A limiting groove (207-2) is provided in the inner cavity of the panel groove (207-3) on a side facing the latch rod (207-5-1); a protruding plug is provided at one end of the latch rod (207-5-1); the plug is plugged into the limiting groove (207-2); the limiting groove (207-2) plays a guiding and limiting role for the latch rod (207-5-1).

9. The PCB back support tool for LCD display assembly according to claim 8, characterized in that: A return spring (207-5-2) is sleeved on the side of the latch rod (207-5-1) away from the panel slot (207-3), and an abutment plate (207-5-4) and a limit plate (207-5-5) are respectively provided at both ends of the return spring (207-5-2). The abutment plate (207-5-2) is fixed on the latch rod (207-5-1), and the limit plate (207-5-5) is fixed in the inner cavity of the lateral plate (207); when the toggle bolt (207-5-3) is pushed in the reverse direction, the abutment plate (207-5-4) and the limit plate (207-5-5) are respectively provided. 07-5-4) and the limit plate (207-5-5) squeeze the reset spring (207-5-2, and the latch rod (207-5-1) is now stored in the lateral plate (207), and the latch rod (207-5-1) releases the fixation to the mounting block (402); when the toggle bolt (207-5-3) is released, the reset spring (207-5-2) pushes the abutment plate (207-5-4) and the latch rod (207-5-1) toward the panel slot (207-3) through reset, thereby achieving the purpose of fixation; A locking groove is vertically provided on one side of the sliding groove (207-4), and a latch positioning plate (207-6) is slidably arranged in the locking groove. When the latch rod (207-5-1) is retracted, the latch positioning plate (207-6) is pushed, and the latch positioning plate (207-6) is used to block the rebound of the latch rod (207-5-1), thereby achieving storage and fixation of the latch rod (207-5-1).

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