Welding-free quick switching device

Abstract

The invention discloses a welding-free rapid switching device, and relates to the technical field of electronic product production and debugging. The circuit board can be conveniently connected without welding; comprising a contact pin reed fixing body placed through a box body, an external contact pin hole is formed in the upper surface of the contact pin reed fixing body, a metal reed is installed on the lower portion in the contact pin reed fixing body and connected with the external contact pin hole, an insulating pressing piece is integrally formed on the lower surface of the contact pin reed fixing body, and the insulating pressing piece is connected with the external contact pin hole. An insulating limiting block is installed on the outer surface of the middle of the metal reed, and the metal reed is matched with the insulating limiting block. The external contact pin holes are formed in the upper surface of the contact pin reed fixing body, so that connection with an external cable can be facilitated, the metal reeds are mounted at the bottom of the contact pin reed fixing body and can be conductively connected with corresponding bonding pad holes of a circuit board, good contact is guaranteed by means of pressure of the reeds after the contact pin reed fixing body is assembled to the circuit board, and contact resistance is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electronic product production and debugging, and in particular to a welding-free quick switching device. Background Art

[0002] Program code burning is a necessary step in the production stage. The program can be burned after the circuit board is soldered. It can be burned using a JTAG emulator connected to a computer, or it can be done using a dedicated offline burner. For offline products that do not support software upgrades, in order to meet different user needs, if the software still needs to be re-burned after modification, the corresponding signal connection holes or sockets are also required to be reserved on the circuit board;

[0003] Online debugging is a necessary debugging method in the development stage of embedded products. Most modern mainstream single-chip microcomputers and microprocessors provide JTAG interfaces (or SWD), which require connecting external JTAG simulators (such as J-LINK or U-LINK, etc.) for debugging. The corresponding signal connection holes or sockets are required to be reserved on the circuit board. During the product manufacturing process, if the corresponding sockets are welded on the circuit board of each product for connecting the simulator or burner, it will not only increase the hardware material cost, but also require additional welding processes in the production and manufacturing process. For the function of burning program code, since the product is delivered to the user, it is only retained as an unconventional application function and is only used when it involves the maintenance and repair of faulty machines. For most normal operating products, it will not be used again during the entire life cycle. Therefore, it is a waste to weld a socket on the circuit board of each product, which is not environmentally friendly. If the circuit board does not weld a socket, the cable is directly connected using a pin, which is easy to shake and cause poor contact, resulting in failure of burning program code or online debugging.

[0004] After searching, the Chinese patent application number 201821144850.9 discloses a quick welding adapter, including a main sheet, two symmetrically arranged gaskets are fixedly connected to the top of the main sheet, a plurality of through holes are provided on the gasket, a plurality of overflow ports connected to the through holes are provided on the main sheet, a through port is provided in the middle of the main sheet, and the main sheet includes a base, an insulating layer is provided on the side of the base away from the gasket, a waterproof layer is provided on the side of the base away from the insulating layer, and a corrosion-resistant layer is provided on the side of the waterproof layer away from the base. The above patent has the following shortcomings: port transfer by welding the adapter on the circuit board will increase the cost of hardware materials, and the production and manufacturing process also requires additional welding processes. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a welding-free quick switching device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A welding-free quick switching device includes a pin spring fixing body placed through a box body, an external pin hole is opened on the upper surface of the pin spring fixing body, a metal spring is installed at the lower part of the pin spring fixing body, the metal spring is connected to the external pin hole, an insulating pressing piece is integrally formed on the lower surface of the pin spring fixing body, an insulating limit block is installed on the outer surface of the middle part of the metal spring, the metal spring cooperates with the insulating limit block, a first protrusion is installed on the bottom of the metal spring, and the pin spring fixing body uses hard insulating plastic or ceramic material.

[0008] Preferably, a first nameplate is provided on the side wall of the pin spring fixing body, and a pressing groove is provided on the side wall of the insulating pressing piece.

[0009] Preferably: a slide groove is provided on the inner side wall of the box body, a fixed groove is provided on the inner side wall of the box body, a storage plate is slidably connected to the inner side of the fixed groove, a storage groove is provided on the inner side of the storage plate, the storage groove cooperates with the pin spring fixing body, a second protrusion is integrally formed on the side wall of the upper surface of the storage plate, the second protrusion cooperates with the fixed groove, the storage plate is slidably connected to the inner side of the slide groove through the second protrusion, a second anti-slip pad is bonded to the bottom of the storage plate, a second handle is installed on the upper surface of the storage plate, and the fixed grooves are symmetrically arranged.

[0010] As a preferred embodiment of the present invention: a first groove is opened inside the second protrusion, a limiting component is installed inside the first groove, the limiting component includes a spring and a spherical block, the spring is installed inside the first groove, the spherical block is slidably connected inside the first groove, the spherical block is connected to the spring, the limiting component also includes a spherical groove, the spherical groove is opened on the side wall of the fixing groove, the spherical block cooperates with the spherical groove, and the spherical grooves are symmetrically arranged.

[0011] As a preferred embodiment of the present invention: a sealing assembly is rotatably connected to the upper surface of the box body, the sealing assembly includes an end cover and a first handle, a fixing plate is welded to the side wall of the box body, the side wall of the fixing plate is rotatably connected to a rotating shaft, the end cover is welded to the outer surface of the rotating shaft, and the first handle is welded to the upper surface of the end cover.

[0012] As a preferred embodiment of the present invention: a fixing component is installed on the outer surface of the box body, the fixing component includes a connecting block and a matching groove, the connecting block is integrally formed on the outer surface of the box body, the matching groove is opened inside the connecting block, the fixing component also includes a fixing piece, the fixing piece is slidably connected to the inside of the connecting block, the fixing component also includes a clamping block and a fixing hole, the clamping block is integrally formed at one end of the lower surface of the end cover, the fixing hole is opened inside the clamping block, and the clamping block cooperates with the matching groove.

[0013] Further: a second nameplate is installed on the side wall of the box body, and a lifting rod is welded on the side wall of the box body.

[0014] As a further solution of the present invention: the side wall of the second protrusion is in an arc shape.

[0015] As a further solution of the present invention: a first anti-slip pad is bonded to the bottom of the box.

[0016] As a further solution of the present invention: the fixing piece matches with the fixing hole.

[0017] The beneficial effects of the present invention are:

[0018] 1. By opening an external pin hole on the upper surface of the pin spring fixed body, it is convenient to connect external cables. By installing a metal spring at the bottom of the pin spring fixed body, it can be conductively connected to the corresponding pad hole of the circuit board. After being assembled to the circuit board, the pressure of the spring is relied on to ensure good contact, greatly reducing the resistance value of the contact resistance.

[0019] 2. By having a first protrusion at the end of the metal spring, it can adapt to the mode of horizontal or vertical installation of the circuit board. Due to the weight of the device itself and the pulling force of the external cable, the hook-shaped protrusion structure of the metal spring can effectively prevent it from falling off after assembly.

[0020] 3. By setting the same number of insulating limit blocks on the outer surface of the metal spring, the metal springs can be prevented from lateral movement, maintaining equal spacing, and ensuring that they are consistent with the holes of the circuit board in the compressed state, without interference or obstruction during assembly operations. By installing insulating pressing pieces on both sides of the bottom of the pin spring fixing body, the metal spring can be compressed before assembly to make the metal springs flush.

[0021] 4. By providing a first nameplate on the side wall of the pin spring fixed body, the information of the switching device can be easily viewed, and by providing a pressing groove on the side wall of the insulating pressing piece, the insulating pressing piece can be easily pressed.

[0022] 5. By slidingly connecting a storage plate inside the box, the pin spring fixing body can be easily stored. By providing a slide groove and other structures inside the box, the storage plate can be moved inside the box to facilitate the storage of multiple storage plates. By installing a second handle on the upper surface of the storage plate, the storage plate can be rotated and moved to facilitate the storage and removal of the storage plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a welding-free quick switching device proposed by the present invention;

[0024] Figure 2It is a structural schematic diagram of another perspective of a welding-free quick switching device proposed by the present invention;

[0025] Figure 3 It is a structural schematic diagram of a storage assembly of a welding-free quick switching device proposed by the present invention;

[0026] Figure 4 It is a structural schematic diagram of a storage component of a welding-free quick switching device proposed by the present invention from another perspective;

[0027] Figure 5 It is a schematic diagram of the structure inside the box of a welding-free quick switching device proposed by the present invention;

[0028] Figure 6 It is a schematic diagram of the structure inside the storage assembly of a welding-free quick switching device proposed by the present invention;

[0029] Figure 7 The present invention provides a schematic structural diagram of a cross-section of a receiving plate of a welding-free quick switching device.

[0030] In the figure: 1-pin spring fixing body, 2-external pin hole, 3-first nameplate, 4-insulating pressing sheet, 5-pressing groove, 6-metal spring, 7-first protrusion, 8-insulating limit block, 9-box, 10-second nameplate, 11-fixing part, 12-connecting block, 13-matching groove, 14-rotating shaft, 15-end cover, 16-fixing plate, 17-lifting rod, 18-block, 19-fixing hole, 20-first handle, 21-first anti-slip pad, 22-fixing groove, 23-spherical groove, 24-slide groove, 25-storage plate, 26-second handle, 27-second protrusion, 28-storage groove, 29-first groove, 30-spring, 31-spherical block, 32-second anti-slip pad. DETAILED DESCRIPTION

[0031] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] Embodiment 1:

[0034] A welding-free quick-connect device, such as Figure 1-7 As shown, including:

[0035] A pin spring fixing body 1 is placed through a box body 9, and an external pin hole 2 is provided on the upper surface of the pin spring fixing body 1. A metal spring 6 is installed at the lower part of the pin spring fixing body 1, and the metal spring 6 is connected to the external pin hole 2. An insulating pressing piece 4 is integrally formed on the lower surface of the pin spring fixing body 1, and an insulating limit block 8 is installed on the outer surface of the middle part of the metal spring 6. The metal spring 6 cooperates with the insulating limit block 8, and a first protrusion 7 is installed at the bottom of the metal spring 6. The pin spring fixing body 1 uses hard insulating plastic or ceramic material, and each adjacent two metal springs 6 provide elastic forces in opposite directions. The insulating pressing piece 4 is connected to the pin spring fixing body 1 as a whole, has a certain elasticity, is usually in a loose state, is in an "eight" shape, and does not contact the insulating limit block 8 and the metal spring 6. The diagonal size of the metal spring 6 plus the first protrusion 7 is smaller than the aperture of the circuit board.

[0036] By providing an external pin hole 2 on the upper surface of the pin spring fixed body 1, it is convenient to connect an external cable. By installing a metal spring 6 at the bottom of the pin spring fixed body 1, it can be conductively connected to the corresponding pad hole of the circuit board. After being assembled to the circuit board, the pressure of the spring is relied on to ensure good contact, greatly reducing the resistance of the contact resistance. By providing a first protrusion 7 at the end of the metal spring 6, it can adapt to the horizontal or vertical installation mode of the circuit board. Due to the weight of the device itself and the pulling force of the external cable, the hook-shaped protrusion structure of the metal spring 6 can effectively prevent it from falling off after assembly. By providing the same number of insulating limit blocks 8 on the outer surface of the metal spring 6, it can prevent the metal springs 6 from moving horizontally and maintain an equal spacing. In the compressed state, it is ensured to be consistent with the hole position of the circuit board, and there will be no interference or obstruction during the assembly operation. By installing insulating pressing sheets 4 on both sides of the bottom of the pin spring fixed body 1, the metal spring 6 can be pressed before assembly to make the metal spring 6 flush, and released after being assembled to the circuit board;

[0037] When the device is in use, before being assembled to the circuit board, first press the insulating pressing piece 4 tightly, and indirectly press the insulating limit block 8, so that the metal spring piece 6 is deformed until the balance position on both sides is reached. At this time, the metal spring piece 6 can be aligned with the pad hole to be installed and inserted, and the insulating pressing piece 4 can be released, and fixed on the circuit board by the elastic force of the spring piece itself to complete the assembly.

[0038] Furthermore, a first nameplate 3 is provided on the side wall of the pin spring fixing body 1 , and a pressing groove 5 is provided on the side wall of the insulating pressing piece 4 .

[0039] By opening a first nameplate 3 on the side wall of the pin spring fixing body 1, the information of the switching device can be easily viewed, and by opening a pressing groove 5 on the side wall of the insulating pressing piece 4, the insulating pressing piece 4 can be easily pressed.

[0040] Furthermore, a slide groove 24 is provided on the inner side wall of the box body 9, a fixed groove 22 is provided on the inner side wall of the box body 9, a storage plate 25 is slidably connected to the inner side of the fixed groove 22, a storage groove 28 is provided on the inner side of the storage plate 25, the storage groove 28 cooperates with the pin spring fixed body 1, a second protrusion 27 is integrally formed on the side wall of the upper surface of the storage plate 25, the second protrusion 27 cooperates with the fixed groove 22, the storage plate 25 is slidably connected to the inner side of the slide groove 24 through the second protrusion 27, a second anti-slip pad 32 is bonded to the bottom of the storage plate 25, a second handle 26 is installed on the upper surface of the storage plate 25, the side wall of the second protrusion 27 is arc-shaped, and the fixed grooves 22 are symmetrically arranged.

[0041] By slidingly connecting a storage plate 25 inside the box body 9, the pin spring fixing body 1 can be easily stored. By providing a slide groove 24 and other structures inside the box body 9, the storage plate 25 can be moved inside the box body 9 to facilitate the storage of multiple storage plates 25. By installing a second handle 26 on the upper surface of the storage plate 25, the storage plate 25 can be rotated and moved to facilitate the storage and removal of the storage plate 25. By bonding a second anti-skid pad 32 to the bottom of the storage plate 25, the storage plate 25 can have an anti-skid function when placed alone. When the device is in use, the pin spring fixing body 1 is placed upside down inside the storage groove 28. After the first layer of storage plates 25 is full, the storage plate 25 is moved by the second handle 26, and the storage plate 25 is moved to the bottommost slide groove 24 through the slide groove 24 inside the box body 9, so as to store the adapter and the storage plate 25.

[0042] Furthermore, a first groove 29 is provided inside the second protrusion 27, and a limiting assembly is installed inside the first groove 29. The limiting assembly includes a spring 30 and a spherical block 31. The spring 30 is installed inside the first groove 29. The spherical block 31 is slidably connected inside the first groove 29. The spherical block 31 is connected to the spring 30. The limiting assembly also includes a spherical groove 23. The spherical groove 23 is provided on the side wall of the fixing groove 22. The spherical block 31 cooperates with the spherical groove 23, and the spherical grooves 23 are symmetrically arranged.

[0043] By installing structures such as a spring 30 and a spherical block 31 inside the side wall of the storage plate 25, and opening structures such as a spherical groove 23 on the side wall of the fixing groove 22, the storage plate 25 can be easily fixed to prevent the storage plate 25 from sliding inside the box body 9. By installing a spring 30 inside the first groove 29, the spherical block 31 can have a certain degree of elasticity to facilitate cooperation with the spherical groove 23. When the device is in use, the second handle 26 drives the storage plate 25 to rotate inside the slide groove 24, so that the spherical block 31 cooperates with the spherical groove 23. The spherical block 31 enters the spherical groove 23 through the spring force to limit the position of the storage plate 25.

[0044] Furthermore, a sealing assembly is rotatably connected to the upper surface of the box body 9, and the sealing assembly includes an end cover 15 and a first handle 20. A fixing plate 16 is welded to the side wall of the box body 9, and the side wall of the fixing plate 16 is rotatably connected to the rotating shaft 14. The end cover 15 is welded to the outer surface of the rotating shaft 14, and the first handle 20 is welded to the upper surface of the end cover 15. A first anti-slip pad 21 is bonded to the bottom of the box body 9.

[0045] By rotatably connecting the end cover 15 and other structures on the upper surface of the box body 9, the box body 9 can be easily sealed, and the storage plate 25 inside the box body 9 can be prevented from accidentally falling off. By installing a first handle 20 on the upper surface of the end cover 15, the box body 9 can be easily carried. By bonding a first anti-slip pad 21 to the bottom of the box body 9, the box body 9 can have an anti-slip function. The end cover 15 is rotated through the rotating shaft 14 to seal the box body 9.

[0046] Furthermore, a fixing assembly is installed on the outer surface of the box body 9, and the fixing assembly includes a connecting block 12 and a matching groove 13. The connecting block 12 is integrally formed on the outer surface of the box body 9, and the matching groove 13 is opened inside the connecting block 12. The fixing assembly also includes a fixing piece 11, and the fixing piece 11 is slidably connected to the inside of the connecting block 12. The fixing assembly also includes a clamping block 18 and a fixing hole 19. The clamping block 18 is integrally formed at one end of the lower surface of the end cover 15, and the fixing hole 19 is opened inside the clamping block 18. The clamping block 18 cooperates with the matching groove 13, and the fixing piece 11 cooperates with the fixing hole 19.

[0047] By installing a fixing part 11 on the outer surface of the box body 9 and installing a clamping block 18 on the side wall of the end cover 15, it is convenient to fix the end cover 15 and the box body 9 to prevent the end cover 15 and the box body 9 from being separated when the box body is moved by the first handle 20. When the end cover 15 seals the box body 9, the fixing part 11 is pulled out, and the end cover 15 is rotated by the rotating shaft 14 so that the clamping block 18 is inserted into the matching groove 13, and the fixing part 11 is inserted into the middle of the connecting block 12 so that the fixing part 11 enters the fixing hole 19, thereby fixing the end cover 15 and the box body 9.

[0048] When the present embodiment is in use, an external pin hole 2 is provided on the upper surface of the pin spring fixing body 1, so that an external cable can be easily connected. A metal spring 6 is installed at the bottom of the pin spring fixing body 1, so that it can be conductively connected to the corresponding pad hole of the circuit board. After being assembled to the circuit board, the pressure of the spring is relied on to ensure good contact, which greatly reduces the contact resistance. By providing a first protrusion 7 at the end of the metal spring 6, it can adapt to the horizontal or vertical installation mode of the circuit board. Due to the weight of the device itself and the pulling force of the external cable, the hook-shaped protrusion structure of the metal spring 6 can effectively prevent it from falling off after assembly. By providing the same number of insulating limit blocks on the outer surface of the metal spring 6 8, can prevent the metal spring pieces 6 from moving horizontally, maintain equal spacing, ensure that they are consistent with the holes of the circuit board in the compressed state, and will not interfere with the assembly operation. By installing insulating pressing pieces 4 on both sides of the bottom of the pin spring piece fixing body 1, the metal spring piece 6 can be compressed before assembly to make the metal spring piece 6 flush, and released after being assembled to the circuit board. Before assembling to the circuit board, first press the insulating pressing piece 4 to indirectly press the insulating limit block 8 to deform the metal spring piece 6 until it reaches a balanced position on both sides. At this time, the metal spring piece 6 can be aligned with the pad hole to be installed and inserted, and the insulating pressing piece 4 can be released, and the spring piece is fixed to the circuit board by its own elastic force to complete the assembly.

[0049] By slidingly connecting a storage plate 25 inside the box body 9, the pin spring fixing body 1 can be easily stored. By providing a slide groove 24 and other structures inside the box body 9, the storage plate 25 can be moved inside the box body 9 to facilitate the storage of multiple storage plates 25. By installing a second handle 26 on the upper surface of the storage plate 25, the storage plate 25 can be rotated and moved to facilitate the storage and removal of the storage plate 25. By bonding a second anti-skid pad 32 to the bottom of the storage plate 25, the storage plate 25 can have an anti-skid function when placed alone. When the device is in use, the pin spring fixing body 1 is placed upside down inside the storage groove 28. After the first layer of storage plates 25 is full, the storage plate 25 is moved by the second handle 26, and the storage plate 25 is moved to the bottommost slide groove 24 through the slide groove 24 inside the box body 9, so as to store the adapter and the storage plate 25.

[0050] Embodiment 2:

[0051] A welding-free quick-connect device, such as Figure 3 As shown, in order to facilitate identification and movement of the box 9, this embodiment makes the following supplements on the basis of embodiment 1: a second nameplate 10 is installed on the side wall of the box 9, and a lifting rod 17 is welded to the side wall of the box 9.

[0052] By installing a second nameplate 10 on the side wall of the box body 9, the box body 9 can be easily identified, and by welding a lifting rod 17 on the side wall of the box body 9, the box body 9 can be easily moved.

[0053] The above is a preferred specific embodiment of the present invention, but it is not the only specific embodiment of the present invention. Any modification, equivalent substitution and improvement made by any technician familiar with the field within the technical scope disclosed by the present invention in combination with the existing technology or public common sense within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A welding-free quick switching device, comprising a pin spring fixing body (1) placed by a box (9), characterized in that: The upper surface of the plug-in spring fixed body (1) is provided with an external plug-in pin hole (2); a metal spring (6) is installed at the lower part of the plug-in spring fixed body (1); the metal spring (6) is connected to the external plug-in pin hole (2); an insulating pressing piece (4) is integrally formed on the lower surface of the plug-in spring fixed body (1); an insulating limit block (8) is installed on the outer surface of the middle part of the metal spring (6); the metal spring (6) cooperates with the insulating limit block (8); a first protrusion (7) is installed at the bottom of the metal spring (6); and the plug-in spring fixed body (1) uses hard insulating plastic or ceramic material.

2. A welding-free quick-connection device according to claim 1, characterized in that: The side wall of the pin spring fixing body (1) is provided with a first nameplate (3), and the side wall of the insulating pressing piece (4) is provided with a pressing groove (5).

3. A welding-free quick-connection device according to claim 2, characterized in that: The inner side wall of the box body (9) is provided with a slide groove (24), the inner side wall of the box body (9) is provided with a fixed groove (22), a receiving plate (25) is slidably connected inside the fixed groove (22), a receiving groove (28) is provided inside the receiving plate (25), the receiving groove (28) is matched with the pin spring fixed body (1), a second protrusion (27) is integrally formed on the side wall of the upper surface of the receiving plate (25), the second protrusion (27) is matched with the fixed groove (22), the receiving plate (25) is slidably connected to the inner side of the slide groove (24) through the second protrusion (27), a second anti-slip pad (32) is bonded to the bottom of the receiving plate (25), a second handle (26) is installed on the upper surface of the receiving plate (25), and the fixed grooves (22) are symmetrically arranged.

4. A welding-free quick-connection device according to claim 3, characterized in that: A first groove (29) is provided inside the second protrusion (27), and a limit assembly is installed inside the first groove (29). The limit assembly includes a spring (30) and a ball-shaped clamping block (31). The spring (30) is installed inside the first groove (29), and the ball-shaped clamping block (31) is slidably connected inside the first groove (29). The ball-shaped clamping block (31) is connected to the spring (30). The limit assembly also includes a ball-shaped groove (23). The ball-shaped groove (23) is provided on the side wall of the fixing groove (22), and the ball-shaped clamping block (31) cooperates with the ball-shaped groove (23). The ball-shaped grooves (23) are symmetrically arranged.

5. A welding-free quick-connection device according to claim 4, characterized in that: The upper surface of the box body (9) is rotatably connected with a sealing assembly, the sealing assembly comprising an end cover (15) and a first handle (20), a fixing plate (16) is welded to the side wall of the upper part of the box body (9), the side wall of the fixing plate (16) is rotatably connected with a rotating shaft (14), the end cover (15) is welded to the outer surface of the rotating shaft (14), and the first handle (20) is welded to the upper surface of the end cover (15).

6. A welding-free quick-connection device according to claim 5, characterized in that: The outer surface of the box body (9) is provided with a fixing assembly, the fixing assembly comprising a connecting block (12) and a matching groove (13), the connecting block (12) being integrally formed on the outer surface of the box body (9), the matching groove (13) being arranged inside the connecting block (12), the fixing assembly further comprising a fixing member (11), the fixing member (11) being slidably connected inside the connecting block (12), the fixing assembly further comprising a clamping block (18) and a fixing hole (19), the clamping block (18) being integrally formed on one end of the lower surface of the end cover (15), the fixing hole (19) being arranged inside the clamping block (18), and the clamping block (18) being matched with the matching groove (13).

7. A welding-free quick-connection device according to claim 6, characterized in that: A second nameplate (10) is installed on the side wall of the box body (9), and a lifting rod (17) is welded to the side wall of the box body (9).

8. The welding-free quick-connection device according to claim 7 is characterized in that: The side wall of the second protrusion (27) is in an arc shape.

9. A welding-free quick-connection device according to claim 8, characterized in that: A first anti-slip pad (21) is bonded to the bottom of the box body (9).

10. A welding-free quick-connection device according to claim 9, characterized in that: The fixing piece (11) matches with the fixing hole (19).

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