A PCB board connector convenient for fixing

Abstract

The present invention belongs to the technical field of PCB board connection seats, and in particular, is a PCB board connector that is easy to fix. In view of the technical problem that the traditional PCB board connector will shake when inserted into the PCB board, and the edge of the PCB board will be squeezed and damaged, the following scheme is proposed, including a connection seat, the front end middle part of both sides of the connection seat is fixedly installed with a connection block by screws, and the front end of one side between the two connection blocks is fixedly installed with the same stable rectangular plug-in box by screws, the bottom of the stable rectangular plug-in box is provided with a notch, and a fixed box is welded and fixed on the inner wall of the notch, and the same top mechanism is fixed on both sides of the inner wall of the fixed box. The present invention pushes the moving block through a clamping spring, and the moving block will push one side of the PCB board through the side fixed slot plate through the push rod, squeeze it to the other side, and clamp it tightly through the spring to avoid shaking, protect the side contact position of the PCB board, and prevent shaking from damaging the PCB board.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board connection seats, and in particular to a PCB board connector which is easy to fix. Background Art

[0002] PCB refers to a printed circuit board (PCB) on which electronic components have been soldered and assembled. PCB consists of PCB, electronic components and connectors. PCB is a board with conductive line patterns printed on non-conductor materials (usually glass fiber reinforced resin). It provides electrical connections and mechanical support between electronic components. The wires on the PCB are realized through conductive layers such as copper foil, which can connect electronic components, connectors, etc. together to build circuit functions. Electronic components refer to various electronic devices and components, such as integrated circuits, capacitors, resistors, transistors, etc. These components are connected to specific locations on the PCB by soldering or insertion to realize the functions of the circuit.

[0003] Connectors are components used to connect electronic components to PCBs, which can provide reliable electrical connections and physical support. There are many types of connectors, including socket connectors, wire-to-board connectors, wire-to-wire connectors, surface mount connectors, etc. The manufacturing process of PCB boards includes PCB manufacturing, component procurement, component welding and assembly. First, the PCB is made, and then the electronic components are welded to the PCB according to the design requirements. Finally, it is assembled and tested to ensure the normal operation of the circuit. PCB boards are widely used in various electronic equipment and products, including communication equipment, computers, home appliances, automotive electronics, medical equipment, etc. It is an indispensable component of electronic products and is crucial to the performance and stability of the product.

[0004] After the existing PCB connector is inserted into the PCB board, due to the instability of the clamping mechanism, there will be slight shaking. The shaking PCB board will be squeezed with the edge of the connector socket, which will squeeze and damage the edge of the PCB board, causing damage to the PCB board and causing the PCB board to fail to meet the standards. Therefore, we need a PCB connector that is easy to fix. Summary of the invention

[0005] Based on the technical problem that a traditional PCB board connector may shake when inserted into a PCB board, thereby squeezing and damaging the edge of the PCB board, the present invention provides a PCB board connector that is easy to fix.

[0006] The present invention provides a PCB board connector that is easy to fix, comprising a connecting seat, connecting blocks are fixedly installed at the middle of the front ends of both sides of the connecting seat by screws, and a same stable rectangular plug-in box is fixedly installed at the front end of one side between the two connecting blocks by screws, a notch is opened at the bottom of the stable rectangular plug-in box, and a fixing box is welded and fixed to the inner wall of the notch, a same top mechanism is fixed to both sides of the inner wall of the fixing box, two groups of lifting mechanisms are arranged at the bottom of the inner wall of the fixing box, a side mounting groove is welded and fixed to one side of the stable rectangular plug-in box, an elastic mechanism is arranged at the front end of the bottom of the inner wall of the side mounting groove, a round hole is opened at the middle of the rear end of the top of the side mounting groove, and a pressing mechanism that can move up and down is inserted into the inner wall of the round hole.

[0007] A further configuration of the present invention is that the elastic mechanism includes a slide rail, and the slide rail is fixed to the front end of the bottom of the inner wall of the side mounting groove by screws, a moving block is slidably installed on the top of the slide rail, and through holes are opened on the tops of both sides of the moving block, a push rod is welded and fixed to the inner wall of the through hole of the moving block, and the push rod passes through a stable rectangular plug-in box on one side, a side fixed groove plate is welded and fixed to the side of the push rod located inside the stable rectangular plug-in box, and a rubber layer is provided on the inner wall of the side fixed groove plate, a plurality of rubber blocks are provided on one side of the rubber layer, and a plurality of irregular rubber protrusions are provided on the arc-shaped convex surfaces of a plurality of the rubber blocks.

[0008] A further configuration of the present invention is that a plug-in rod is welded and fixed to the middle of one side of the side mounting groove of the stable rectangular plug-in box, and the other end of the plug-in rod is fixed to the inner wall of the side mounting groove, and the plug-in rod passes through the moving block, and a clamping spring is sleeved on the side of the circumferential outer wall of the plug-in rod away from the stable rectangular plug-in box.

[0009] A further configuration of the present invention is that a limiting block is welded and fixed to the side of the circumferential outer wall of the push rod away from the side fixed groove plate, and a limiting triangular block is welded and fixed to the rear end of the limiting block close to the side fixed groove plate.

[0010] A further configuration of the present invention is that the pressing mechanism includes a pressing block, and the pressing block is inserted into the top of the side mounting groove, the bottom of the pressing block is welded and fixed with a pressure block whose bottom and the top inclined surface of the limiting triangle block are mutually adapted, a lifting plate is welded and fixed to the middle of the rear end of the pressure block, and a through hole is opened in the middle of the top of the lifting plate, a column is welded and fixed to the rear end of the bottom of the inner wall of the side mounting groove, and the column passes through the through hole of the lifting plate, and a lifting spring is sleeved on the bottom of the circumferential outer wall of the column.

[0011] A further configuration of the present invention is that the upper lifting mechanism includes two slide grooves, and the two slide grooves are fixed to the middle of both sides of the inner wall of the fixed box by screws, a fixed block is slidably installed between the two slide grooves, and a connecting plate is welded and fixed to the middle of one side between the two fixed blocks, and the same installation shaft is welded and fixed to one side between the two connecting plates.

[0012] A further configuration of the present invention is that bearing rings are sleeved on both sides of the circumferential outer wall of the installation shaft, and upper pressure rollers are welded and fixed to the circumferential outer walls of the two bearing rings.

[0013] A further configuration of the present invention is that the two groups of the lifting mechanism include two U-shaped elastic bent plates, and the tops of the two elastic bent plates are provided with elliptical holes, the tops of the inner walls of the two elastic bent plates are located below the elliptical holes and are welded and fixed with rectangular grooves, and the bottoms of the two connecting plates are located above the elliptical holes of the elastic bent plates and are welded and fixed with downward pressure rods.

[0014] A further configuration of the present invention is that the bottoms of the inner walls of the two elastic bending plates are fixed with bases by screws, and top springs are provided inside the grooves at the tops of the two bases, and the tops of the two top springs are respectively fixed to the bottom of the rectangular groove of the inner wall of the same elastic bending plate.

[0015] A further configuration of the present invention is that the circumferential outer walls of the two upper pressure rollers are provided with rubber rings with a semicircular cross-section, and a plurality of fan-shaped holes are opened on both sides of the two upper pressure rollers.

[0016] The beneficial effects of the present invention are:

[0017] 1. The device of the present invention is provided with a clamping spring, a pushing rod, a side fixed groove plate, a slide rail and other devices. After the PCB board is inserted into the stable rectangular plug-in box, the clamping spring pushes the moving block, and the moving block pushes one side of the PCB board through the pushing rod and the side fixed groove plate, squeezes it to the other side, and clamps it tightly through the spring to avoid shaking, protect the side contact position of the PCB board, and prevent shaking from damaging the PCB board.

[0018] 2. The device of the present invention is provided with a rubber layer, a rubber block, a rubber protrusion, a side fixing groove plate and other devices. By moving the side fixing groove plate, the rubber block on the rubber layer contacts the side of the PCB board, which increases the friction between the PCB boards and prevents the PCB board from falling off the connecting seat. At the same time, the rubber protrusion contacts the rubber block, and the soft material of the rubber itself has a good protective effect on the side of the PCB board.

[0019] 3. The device of the present invention is provided with a pressing block, a limiting block, a pressure block, a limiting triangle block and other devices. When the PCB board is removed, the pressing block is pressed down, and the pressure block will go down to squeeze the inclined surface of the limiting triangle block, which will push the limiting triangle block, the push rod and the side fixed groove plate to move, thereby eliminating the clamping effect and facilitating the removal of the PCB board.

[0020] 4. The device of the present invention is provided with an upper pressure roller, an elastic bending plate, a lower pressure rod, a connecting plate and other devices. When the PCB board is inserted, it will contact the upper pressure roller and squeeze downward. After the PCB board is inserted, the elastic bending plate and the top spring inside it will push the top lower pressure rod of the elastic bending plate to rise, so that the upper pressure roller and the rubber ring on its outer wall contact the bottom of the PCB board, pushing it upward to avoid up and down shaking, and will not touch the top and bottom of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a PCB board connector that is easy to fix proposed by the present invention;

[0022] Figure 2 A schematic top view of a three-dimensional structure of a PCB board connector that is easy to fix proposed by the present invention;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of a side fixing slot plate of a PCB board connector that is easy to fix proposed by the present invention;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of a PCB board connector pressing block that is easy to fix proposed by the present invention;

[0025] Figure 5 This is an enlarged three-dimensional structural schematic diagram of a PCB board connector rubber block that is easy to fix, as proposed by the present invention;

[0026] Figure 6 A top-down perspective structural diagram of a PCB board connector fixing box that is easy to fix, as proposed by the present invention;

[0027] Figure 7 A schematic diagram of the three-dimensional structure of an elastic bending plate of a PCB board connector that is easy to fix proposed by the present invention.

[0028] In the figure: 1. connecting seat; 2. connecting block; 3. fixing box; 4. bearing ring; 5. upper pressure roller; 6. side fixing groove plate; 7. pushing rod; 8. side mounting groove; 9. pressing block; 10. stable rectangular plug-in box; 11. fixing block; 12. connecting plate; 13. rubber block; 14. moving block; 15. slide rail; 16. plug-in rod; 17. clamping spring; 18. limit block; 19. pressure block; 20. rubber layer; 21. limit triangle block; 22. lifting spring; 23. lifting plate; 24. column; 25. rubber protrusion; 26. slide groove; 27. rectangular groove; 28. elastic bending plate; 29. ​​top spring; 30. base; 31. lower pressure rod; 32. mounting shaft; 33. rubber ring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-7 A PCB connector that is easy to fix, comprising a connection seat 1, a connection block 2 is fixedly installed at the middle of the front end of both sides of the connection seat 1 by screws, and a same stable rectangular plug-in box 10 is fixedly installed at the front end of one side between the two connection blocks 2 by screws, a notch is opened at the bottom of the stable rectangular plug-in box 10, and a fixed box 3 is welded and fixed to the inner wall of the notch, the same top mechanism is fixed on both sides of the inner wall of the fixed box 3, two sets of lifting mechanisms are arranged at the bottom of the inner wall of the fixed box 3, a side mounting groove 8 is welded and fixed to one side of the stable rectangular plug-in box 10, an elastic mechanism is arranged at the bottom front end of the inner wall of the side mounting groove 8, and the side mounting A circular hole is opened in the middle of the rear end of the top of the slot 8, and a pressing mechanism that can move up and down is inserted into the inner wall of the circular hole. When in use, the PCB board is inserted through the stable rectangular plug-in box 10 so that the PCB board is inserted into the connecting seat 1 of the rear section. After insertion, the elastic mechanism will push the side fixed slot plate 6 and other devices to contact one side of the PCB board, and push them to contact the other side to fix it to prevent the PCB board from shaking left and right. At the same time, when inserting, the top mechanism will be pressed, and the top mechanism and the lifting mechanism will lift the top pressure roller 5 to lift and fix the PCB board above it to prevent the PCB board from shaking up and down.

[0031] Reference Figure 3 , Figure 4 , Figure 5The elastic mechanism includes a slide rail 15, and the slide rail 15 is fixed to the front end of the bottom of the inner wall of the side mounting groove 8 by screws. A moving block 14 is slidably installed on the top of the slide rail 15, and through holes are opened on the tops of both sides of the moving block 14. A push rod 7 is welded and fixed to the inner wall of the through hole of the moving block 14, and the push rod 7 passes through a stable rectangular plug-in box 10 on one side. The push rod 7 is welded and fixed to a side fixed groove plate 6 on one side of the stable rectangular plug-in box 10, and a rubber layer 20 is provided on the inner wall of the side fixed groove plate 6, and a plurality of rubber blocks 13 are provided on one side of the rubber layer 20. The arc-shaped convex surfaces of the plurality of rubber blocks 13 are provided with a plurality of irregular rubber protrusions 25. The stable rectangular plug-in box 10 is located in the middle of one side of the side mounting groove 8 and is welded and fixed with a plug-in rod 16, and the other end of the plug-in rod 16 is fixed to the side mounting The inner wall of the slot 8 is installed, and the plug-in rod 16 passes through the moving block 14. The circumferential outer wall of the plug-in rod 16 is sleeved with a clamping spring 17 on one side away from the stable rectangular plug-in box 10. When the PCB board is inserted, the clamping spring 17 will push the moving block 14 to move toward the side of the PCB board on the slide rail 15, and will drive the pushing rod 7 and its side fixed slot plate 6 to push and clamp one side of the PCB board. A rubber layer 20 is arranged inside the side fixed slot plate 6 to protect the PCB board and the inside of the side fixed slot plate 6, avoiding the PCB board from directly contacting the side fixed slot plate 6 made of hard materials. At the same time, the rubber block 13 on the rubber layer 20 and its rubber protrusion 25 contact the side of the PCB board, which will increase the friction between the PCB boards and prevent the PCB board from falling off the connecting seat 1.

[0032] Reference Figure 3 , Figure 4 The outer wall of the circumference of the push rod 7 is welded and fixed to a limited block 18 on one side away from the side fixed groove plate 6, and the rear end of the limited block 18 close to the side fixed groove plate 6 is welded and fixed to a limited triangle block 21. The pressing mechanism includes a pressing block 9, and the pressing block 9 is inserted into the top of the side mounting groove 8. The bottom of the pressing block 9 is welded and fixed with a pressure block 19 whose bottom and the top inclined surface of the limited triangle block 21 are mutually adapted. A lifting plate 23 is welded and fixed to the middle of the rear end of the pressure block 19, and a through hole is opened in the middle of the top of the lifting plate 23. A column 24 is welded and fixed to the rear end of the bottom of the inner wall of the side mounting groove 8, and the column 24 passes through the lifting The through hole of the lifting plate 23 and the bottom of the circumferential outer wall of the column 24 are sleeved with a lifting spring 22. When disassembling, the staff only needs to press and lower the pressing block 9, and the pressure block 19 will go down to squeeze the inclined surface on the top of the limiting triangle block 21, which will push the limiting triangle block 21, the pushing rod 7 and the side fixed groove plate 6 to move in the opposite direction, canceling the clamping effect on the PCB board, making it easy to disassemble the PCB board. In the undisassembled state, the lifting spring 22 will push the lifting plate 23 and its pressure block 19 to rise to the highest point, and will not affect the clamping spring 17 to push the limiting block 18 and its limiting triangle block 21 to move to one side of the PCB board.

[0033] Reference Figure 2 , Figure 6 , Figure 7 The upper push mechanism includes two slide grooves 26, and the two slide grooves 26 are fixed to the middle of both sides of the inner wall of the fixed box 3 by screws. A fixed block 11 is slidably installed between the two slide grooves 26, and a connecting plate 12 is welded and fixed to the middle of one side between the two fixing blocks 11. The same installation shaft 32 is welded and fixed to one side between the two connecting plates 12. Both sides of the circumferential outer wall of the installation shaft 32 are sleeved with bearing rings 4. The circumferential outer walls of the two bearing rings 4 are welded and fixed with upper push pressure rollers 5. When the PCB board is inserted, the PCB board will contact the upper push pressure roller 5. The upper push pressure roller 5 will rotate rectangularly due to the friction force. The lifting will squeeze the upper push pressure roller 5 and the connecting plate 12 and other devices to descend on the slide groove 26. The two sets of lifting mechanisms include two U-shaped elastic bending plates 28, and the tops of the two elastic bending plates 28 are provided with elliptical holes. The tops of the inner walls of the two elastic bending plates 28 are located below the elliptical holes and are welded and fixed with rectangular grooves 27. The bottoms of the two connecting plates 12 are located above the elliptical holes of the elastic bending plates 28 and are welded and fixed with lower pressure rods 31. The lower pressure rods 31 that descend will descend through the elliptical holes of the elastic bending plates 28 and contact the inner walls of the rectangular grooves 27 below. Due to the material properties of the elastic bending plates 28 themselves, they will have a rebound effect and will lift the lower pressure rods 31 through the rectangular grooves 27 to achieve the effect of lifting the upper pressure roller 5. The lifting of the upper pressure roller 5 will push the PCB upward to prevent the PCB from shaking downward.

[0034] Reference Figure 7 The bottom of the inner wall of the two elastic bending plates 28 is fixed with a base 30 by screws, and the grooves at the top of the two bases 30 are provided with a top spring 29, and the tops of the two top springs 29 are respectively fixed to the bottom of the rectangular groove 27 of the inner wall of the same elastic bending plate 28. When the elastic bending plate 28 is bent, the top spring 29 will react to push the top of the elastic bending plate 28 under the pressure of the rectangular groove 27, thereby increasing the lifting effect on the lower pressure rod 31 and ensuring the lifting protection effect on the PCB board.

[0035] Reference Figure 7 The circumferential outer walls of the two upper pressure rollers 5 are provided with a rubber ring 33 with a semicircular cross-section, and a plurality of fan-shaped holes are opened on both sides of the two upper pressure rollers 5. The rubber ring 33 is arranged on the circumferential outer wall of the upper pressure roller 5. When the upper pressure roller 5 contacts the bottom of the PCB board and rotates, the rubber ring 33 made of rubber material contacts the bottom of the PCB board, which has a protective effect on the bottom of the PCB board and avoids wear.

[0036] When in use, the PCB board is inserted through the stable rectangular plug-in box 10 so that the PCB board is inserted into the connecting seat 1 of the rear section. The clamping spring 17 will push the moving block 14 to move toward one side of the PCB board on the slide rail 15, which will drive the pushing rod 7 and its side fixed slot plate 6 to push and clamp one side of the PCB board. A rubber layer 20 is arranged inside the side fixed slot plate 6 to protect the PCB board and the inside of the side fixed slot plate 6 to prevent the PCB board from directly contacting the side fixed slot plate 6 made of hard materials. At the same time, the rubber block 13 on the rubber layer 20 and its rubber protrusion 25 contact the side of the PCB board, which will increase the friction between the PCB boards and prevent the PCB board from falling off the connecting seat 1. When disassembling, the staff only needs to press and lower the pressing block 9, and the pressure block 19 will descend and squeeze the inclined surface at the top of the limiting triangle block 21, which will push the limiting triangle block 21, the pushing rod 7 and the side fixed slot plate 6 to move in the opposite direction, canceling the clamping effect on the PCB board, making it easy to disassemble. When the PCB board is not disassembled, the lifting spring 22 will push the lifting plate 23 and its pressure block 19 to the highest point, and will not affect the clamping spring 17 pushing the limit block 18 and its limit triangle block 21 to move toward one side of the PCB board. At the same time, the PCB board will contact the upper pressure roller 5, and the upper pressure roller 5 will rotate rectangularly due to the friction force. The lifting will squeeze the upper pressure roller 5 and the connecting plate 12 and other devices to descend on the slide groove 26, and the descending lower pressure rod 31 will descend and pass through the elliptical hole of the elastic bending plate 28, and contact the inner wall of the rectangular groove 27 below. Due to the material characteristics of the elastic bending plate 28 itself, it will have a rebound effect and will lift the lower pressure rod 31 through the rectangular groove 27. At the same time, when the elastic bending plate 28 is bent, the top spring 29 will react under the pressure of the rectangular groove 27 to push the top of the elastic bending plate 28, so as to achieve the effect of lifting the upper pressure roller 5. The lifting of the upper pressure roller 5 will push the PCB board upward to prevent the PCB board from shaking downward.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCB connector that is easy to fix, comprising a connection seat (1), characterized in that: A connecting block (2) is fixedly mounted on the front middle of both sides of the connecting seat (1) by screws, and a stable rectangular plug-in box (10) is fixedly mounted on the front end of one side between the two connecting blocks (2) by screws, a notch is opened at the bottom of the stable rectangular plug-in box (10), and a fixed box (3) is welded and fixed to the inner wall of the notch, a same top mechanism is fixed on both sides of the inner wall of the fixed box (3), two sets of lifting mechanisms are provided at the bottom of the inner wall of the fixed box (3), a side mounting groove (8) is welded and fixed on one side of the stable rectangular plug-in box (10), an elastic mechanism is provided at the bottom front end of the inner wall of the side mounting groove (8), a round hole is opened at the middle of the rear end of the top of the side mounting groove (8), and a pressing mechanism that can move up and down is inserted into the inner wall of the round hole; The elastic mechanism comprises a slide rail (15), and the slide rail (15) is fixed to the front end of the bottom of the inner wall of the side mounting groove (8) by screws, a moving block (14) is slidably installed on the top of the slide rail (15), and through holes are opened on the tops of both sides of the moving block (14), a push rod (7) is welded and fixed to the inner wall of the through hole of the moving block (14), and the push rod (7) passes through a stable rectangular plug-in box (10) on one side, and a side fixed groove plate (6) is welded and fixed to the side of the push rod (7) located inside the stable rectangular plug-in box (10), and the inner wall of the side fixed groove plate (6) is provided with a rubber layer (20), and a plurality of rubber blocks (13) are provided on one side of the rubber layer (20), and a plurality of irregular rubber protrusions (25) are provided on the arc convex surfaces of a plurality of the rubber blocks (13); The lifting mechanism comprises two slide grooves (26), and the two slide grooves (26) are fixed to the middle of both sides of the inner wall of the fixed box (3) by screws, a fixed block (11) is slidably installed between the two slide grooves (26), and a connecting plate (12) is welded and fixed at the middle of one side between the two fixing blocks (11), and the same installation shaft (32) is welded and fixed at one side between the two connecting plates (12); both sides of the circumferential outer wall of the installation shaft (32) are sleeved with bearing rings (4), the circumferential outer walls of the two bearing rings (4) are welded with an upper pressure roller (5); the two sets of the lifting mechanism include two U-shaped elastic bending plates (28), and the tops of the two elastic bending plates (28) are provided with elliptical holes, the tops of the inner walls of the two elastic bending plates (28) are located below the elliptical holes and are welded with a rectangular groove (27), and the bottoms of the two connecting plates (12) are located above the elliptical holes of the elastic bending plates (28) and are welded with a lower pressure rod (31).

2. A PCB connector that is easy to fix according to claim 1, characterized in that: The stable rectangular plug-in box (10) is welded and fixed with a plug-in rod (16) in the middle of one side of the side mounting groove (8), and the other end of the plug-in rod (16) is fixed to the inner wall of the side mounting groove (8), and the plug-in rod (16) passes through the moving block (14), and a clamping spring (17) is sleeved on the side of the circumferential outer wall of the plug-in rod (16) away from the stable rectangular plug-in box (10).

3. A PCB connector that is easy to fix according to claim 2, characterized in that: A limiting block (18) is welded and fixed to the side of the circumferential outer wall of the push rod (7) away from the side fixed groove plate (6), and a limiting triangular block (21) is welded and fixed to the rear end of the limiting block (18) close to the side fixed groove plate (6).

4. A PCB connector that is easy to fix according to claim 3, characterized in that: The pressing mechanism comprises a pressing block (9), and the pressing block (9) is inserted into the top of the side mounting groove (8); a pressure block (19) is welded and fixed to the bottom of the pressing block (9), and the bottom and the top inclined surface of the limiting triangle block (21) are mutually adapted; a lifting plate (23) is welded and fixed to the middle of the rear end of the pressure block (19), and a through hole is opened in the middle of the top of the lifting plate (23); a column (24) is welded and fixed to the rear end of the bottom of the inner wall of the side mounting groove (8), and the column (24) passes through the through hole of the lifting plate (23); and a lifting spring (22) is sleeved on the bottom of the circumferential outer wall of the column (24).

5. A PCB connector that is easy to fix according to claim 4, characterized in that: The bottoms of the inner walls of the two elastic bending plates (28) are fixed with bases (30) by screws, and the grooves at the tops of the two bases (30) are provided with top springs (29), and the tops of the two top springs (29) are respectively fixed to the bottoms of the rectangular grooves (27) on the inner walls of the same elastic bending plate (28).

6. A PCB connector that is easy to fix according to claim 5, characterized in that: The circumferential outer walls of the two upper pressure rollers (5) are both provided with rubber rings (33) with a semicircular cross-section, and a plurality of fan-shaped holes are opened on both sides of the two upper pressure rollers (5).

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