CN219395346U

CN219395346U - Clamping structure and PLC modularized circuit board fixing device

Info

Publication number: CN219395346U
Application number: CN202320841487.0U
Authority: CN
Inventors: 唐维峰; 陈夫军; 黄海健
Original assignee: Suzhou Xinchuangli Automatic Control Co ltd
Current assignee: Suzhou Xinchuangli Automatic Control Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-07-21
Anticipated expiration: 2033-04-17

Abstract

The utility model provides a clamping structure and a PLC modularized circuit board fixing device, and belongs to the technical field of circuit board fixing and mounting. The clamping structure comprises a circuit board and a clamping bearing part. The joint bearing part includes supporting shoe, grafting portion, shell, elastic connection portion, longitudinal strip board and fixture block, and the supporting shoe is located the circuit board below, and two grafting portions are symmetrical fixed respectively and are set up in the supporting shoe both sides, and grafting portion keeps away from supporting shoe one end activity and insert and locate inside the shell, and elastic connection portion connects shell and grafting portion, and longitudinal strip board is fixed in the shell and keeps away from supporting shoe one end. When the circuit board is required to be disassembled, the circuit board is only required to be taken out by pulling the clamping blocks on one side or two sides. Compared with the traditional mode of installing the circuit board by screws, the mode can be used for rapidly installing and detaching the circuit board and improving the dismounting efficiency of the circuit board.

Description

Clamping structure and PLC modularized circuit board fixing device

Technical Field

The utility model relates to the field of circuit board fixed installation, in particular to a clamping structure and a PLC modularized circuit board fixing device.

Background

The circuit board inside the PLC is installed inside the PLC shell and is fixedly installed in a mode of fixing by screws. The utility model provides a publication number CN 206341478U's publication circuit board fixed knot constructs, includes the PCB board, one side overlap joint of PCB board has the panel of being convenient for user operation, be equipped with on the PCB board and be used for giving the radiating radiator of PCB board, the radiator with the panel pass through a sharing screw fixation in on the PCB board, the radiator still through first screw and second screw install in on the PCB board, the sharing screw first screw with the second screw is triangle-shaped and arranges. The arrangement of the screws and the screw holes is reduced, so that the utilization of the effective area of the PCB is improved, the assembly efficiency is improved, and the manufacturing cost is reduced. But above-mentioned circuit board is the same with the PLC circuit board mounting means among the prior art, all adopts the mounting means of screw directly to fix the circuit board promptly, still need dismantle the screw when dismantling maintenance, maintenance change, dismantle maintenance, maintenance change convenient and fast inadequately.

Disclosure of Invention

In order to make up for the defects, the utility model provides a clamping structure and a PLC modularized circuit board fixing device, and aims to solve the problems that screws still need to be disassembled during disassembly, maintenance, overhaul and replacement in the related art, and the operation is not convenient and rapid enough.

The utility model is realized in the following way:

the utility model provides a clamping structure which comprises a circuit board and a clamping bearing part.

The clamping bearing part comprises supporting blocks, plug-in parts, barrel shells, elastic connection parts, longitudinal strips and clamping blocks, wherein the supporting blocks are located below the circuit board, the two plug-in parts are symmetrically and fixedly arranged on two sides of the supporting blocks respectively, the plug-in parts are far away from the inside of the barrel shells due to the fact that one ends of the supporting blocks are movably plugged in, the elastic connection parts are connected with the barrel shells and the plug-in parts, the longitudinal strips are fixed in the barrel shells far away from one ends of the supporting blocks, and a plurality of clamping blocks are equidistantly arranged above the longitudinal strips.

In an embodiment of the utility model, the elastic connection portion includes a first hanging ring, a second hanging ring and a tension spring, wherein the first hanging ring and the second hanging ring are respectively and fixedly arranged on the plug-in portion and the side wall of the cartridge shell, and the tension spring is connected to the first hanging ring and the second hanging ring.

In an embodiment of the utility model, the plugging portion includes a fixing plate and a plugging plate, one end of the fixing plate is fixedly arranged on the outer wall of the supporting block, the other end of the fixing plate is fixedly connected with one end of the plugging plate, the other end of the plugging plate is movably plugged into the cylinder shell, and the second hanging ring is fixed on the side wall of the plugging plate.

In one embodiment of the utility model, the clamping and supporting part further comprises a cushion block, and the cushion block is fixed on the upper surface of the cylinder shell.

In one embodiment of the utility model, the clamping block is of an L-shaped structure, and an elastic filler strip is arranged inside the clamping block.

The application also provides a PLC modularization circuit board fixing device, including a joint structure and bottom fixed part.

The bottom fixing part comprises a base, a sleeve and an inserting block, wherein the sleeve is arranged below the supporting block, the inserting block is fixed above the base, and the top end of the inserting block is inserted into the sleeve.

In one embodiment of the utility model, the two sides of the base are fixedly provided with the ear plates, and the ear plates are provided with screws.

In one embodiment of the utility model, a fixing bolt is arranged on the outer side of the sleeve, and a screw rod of the fixing bolt is in threaded connection and fixation with the plug.

The beneficial effects of the utility model are as follows: according to the clamping structure and the PLC modularized circuit board fixing device, the circuit board is stably clamped between two groups of clamping blocks under the elasticity of the elastic connecting part. When the circuit board needs to be disassembled, the circuit board is taken out only by pulling the clamping blocks on one side or two sides. Compared with the traditional mode of installing the circuit board by screws, the mode can be used for rapidly installing and detaching the circuit board and improving the dismounting efficiency of the circuit board.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a clamping structure and a PLC modular circuit board fixing device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a clamping and supporting portion and a bottom fixing portion according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a plug portion, a cartridge housing, and an elastic connection portion according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a bottom fixing portion according to an embodiment of the present utility model.

In the figure: 10-a circuit board; 20-clamping the bearing part; 210-supporting blocks; 220-plug-in part; 221-a fixing plate; 222-plugboard; 230-a cartridge housing; 240-elastic connection; 241-first hanging ring; 242-second hanging ring; 243-a tension spring; 250-longitudinal strips; 260-clamping blocks; 270-cushion blocks; 30-a bottom fixed portion; 310-base; 320-sleeve; 330-plug-in block; 340-ear plate; 350-screw; 360-fixing bolts.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, the present utility model provides a clamping structure, which includes a circuit board 10 and a clamping support portion 20.

The clamping support portion 20 is used for rapidly clamping the circuit board 10, and compared with a traditional mode of installing the circuit board 10 by screws, the circuit board 10 can be rapidly disassembled and assembled.

Referring to fig. 2, the clamping and supporting portion 20 includes a supporting block 210, a plug portion 220, a cartridge 230, an elastic connection portion 240, a longitudinal plate 250 and a clamping block 260. The supporting block 210 is located below the circuit board 10, two plugging portions 220 are symmetrically and fixedly disposed on two sides of the supporting block 210, and one end of the plugging portion 220, which is far away from the supporting block 210, is movably plugged into the cartridge casing 230. The elastic connecting part 240 connects the cylinder shell 230 and the plug-in part 220, the longitudinal plate 250 is fixed at one end of the cylinder shell 230 far away from the supporting block 210, and the longitudinal plate 250 and the cylinder shell 230 are integrally formed; and a plurality of clamping blocks 260 are equidistantly arranged above the longitudinal plate 250, and the clamping blocks 260 and the longitudinal plate 250 are integrally formed.

Through the arrangement of the elastic connection part 240 between the plug-in part 220 and the cartridge case 230, one end of the circuit board 10 can be clamped inside the clamping blocks 260 on the longitudinal plate 250 on one side, meanwhile, the clamping blocks 260 on the other side are pulled to enable the elastic connection part 240 to be in an elastic stretching state, and then the clamping blocks 260 on the other side are clamped at the other end of the circuit board 10, namely, the circuit board 10 is stably clamped between the two groups of clamping blocks 260 under the elasticity of the elastic connection part 240. When the circuit board 10 needs to be disassembled, the circuit board 10 is taken out by pulling the clamping blocks 260 on one side or two sides. Compared with the traditional mode of installing the circuit board 10 by screws, the mode can be used for rapidly installing and detaching the circuit board 10, and the disassembling and assembling efficiency of the circuit board 10 is improved.

In the above embodiment, referring to fig. 3, the elastic connection portion 240 includes a first hanging ring 241, a second hanging ring 242 and a tension spring 243. The first hanging ring 241 and the second hanging ring 242 are respectively and fixedly arranged on the side walls of the plug-in connection part 220 and the cylinder shell 230, and the tension spring 243 is connected to the first hanging ring 241 and the second hanging ring 242. That is, the tension spring 243 between the plug-in portion 220 and the cartridge 230 makes the plug-in portion 220 and the cartridge 230 have a certain elastic force, that is, the clamping block 260 at the end of the cartridge 230 clamps and fixes the circuit board 10 under the action of the elastic force of the tension spring 243.

Further, referring to fig. 2 and 3, the plugging portion 220 includes a fixing plate 221 and a plugging plate 222, the fixing plate 221 and the supporting block 210 are fixed by welding, the fixing plate 221 and the plugging plate 222 are integrally formed, the other end of the plugging plate 222 is movably plugged into the cylinder housing 230, and the second hanging ring 242 is fixed on the sidewall of the plugging plate 222. That is, the insertion plate 222 is inserted into the casing 230, and when the tension spring 243 expands and contracts, the insertion portion 220 and the casing 230 move relatively to each other to adjust the distance therebetween. The snap-fit receiver portion 20 further includes a spacer 270, the spacer 270 being secured to the upper surface of the cartridge 230, the spacer 270, mating longitudinal strips 250 and support blocks 210 for assisting in supporting the lower surface of the circuit board 10. The fixture block 260 is of an L-shaped structure, and an elastic filler strip is arranged inside the fixture block 260, and the elastic filler strip can be made of rubber filler strips with good elasticity and is used for protecting the end part of the circuit board 10 and playing a role in skid resistance, so that the circuit board 10 is clamped between two groups of the fixture blocks 260 more stably.

The application also provides a PLC modularization circuit board fixing device, a joint structure and bottom fixed part 30 that includes.

Referring to fig. 2 and 4, the bottom fixing portion 30 includes a base 310, a sleeve 320, and an insert 330. The sleeve 320 is disposed below the supporting block 210, the insert 330 is fixed above the base 310, and the top end of the insert 330 is inserted into the sleeve 320.

The insert 330 may be a prismatic block, so that the clamping support portion 20 may be inserted into the insert 330 together with the sleeve 320 for positioning and fixing. The sleeve 320 may be internally provided with an anti-slip sleeve so that the sleeve 320 is more stably secured when inserted into the outside of the insert 330. When the clamping and supporting portion 20 needs to be disassembled, the clamping and supporting portion 20 and the sleeve 320 are pulled out together with each other.

In the above embodiment, referring to fig. 4, ear plates 340 are fixedly disposed on both sides of the base 310, and screws 350 are disposed on the ear plates 340. The bottom fixing portion 30 is fixed inside the PLC housing using the arrangement of the screw 350 and the ear plate 340. The sleeve 320 is provided with a fixing bolt 360 on the outer side, and a screw rod of the fixing bolt 360 is fixedly connected with the insert block 330 in a screw manner.

The clamping structure and the working principle of the PLC modularized circuit board fixing device are as follows: when in use, one end of the circuit board 10 can be clamped inside the clamping block 260 on the longitudinal plate 250 at one side by adopting the arrangement of the elastic connecting part 240 between the plug-in part 220 and the cylinder shell 230, meanwhile, the clamping block 260 at the other side is pulled to enable the elastic connecting part 240 to be in an elastic stretching state, and then the clamping block 260 at the other side is clamped at the other end of the circuit board 10, namely, the circuit board 10 is stably clamped between the two groups of clamping blocks 260 under the elasticity of the elastic connecting part 240. When the circuit board 10 needs to be disassembled, the circuit board 10 is taken out by pulling the clamping blocks 260 on one side or two sides. Compared with the traditional mode of installing the circuit board 10 by screws, the mode can be used for rapidly installing and detaching the circuit board 10, and the disassembling and assembling efficiency of the circuit board 10 is improved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a joint structure which is characterized in that includes

A circuit board (10);

the clamping bearing part (20), clamping bearing part (20) includes supporting shoe (210), grafting portion (220), shell (230), elastic connection portion (240), vertical slat (250) and fixture block (260), supporting shoe (210) are located circuit board (10) below, two grafting portion (220) symmetry respectively fixed set up in supporting shoe (210) both sides, just grafting portion (220) keep away from supporting shoe (210) one end activity is inserted and is located inside shell (230), elastic connection portion (240) are connected shell (230) with grafting portion (220), vertical slat (250) are fixed in shell (230) are kept away from supporting shoe (210) one end, and a plurality of fixture block (260) equidistance set up in vertical slat (250) top.

2. The clamping structure according to claim 1, wherein the elastic connection portion (240) comprises a first hanging ring (241), a second hanging ring (242) and a tension spring (243), the first hanging ring (241) and the second hanging ring (242) are respectively and fixedly arranged on the plug portion (220) and the side wall of the cylinder shell (230), and the tension spring (243) is connected to the first hanging ring (241) and the second hanging ring (242).

3. The clamping structure according to claim 2, wherein the plugging portion (220) comprises a fixing plate (221) and a plugboard (222), one end of the fixing plate (221) is fixedly arranged on the outer wall of the supporting block (210), the other end of the fixing plate (221) is fixedly connected with one end of the plugboard (222), the other end of the plugboard (222) is movably plugged into the cylinder shell (230), and the second hanging ring (242) is fixed on the side wall of the plugboard (222).

4. The clamping structure of claim 1, wherein the clamping support portion (20) further comprises a spacer block (270), the spacer block (270) being fixed to the upper surface of the cartridge housing (230).

5. The clamping structure according to claim 1, wherein the clamping block (260) has an L-shaped structure, and an elastic filler strip is disposed inside the clamping block (260).

6. A PLC modular circuit board fixing apparatus comprising a clamping structure according to any one of claims 1 to 5 and

the bottom fixing part (30), the bottom fixing part (30) comprises a base (310), a sleeve (320) and an inserting block (330), the sleeve (320) is arranged below the supporting block (210), the inserting block (330) is fixed above the base (310), and the top end of the inserting block (330) is inserted into the sleeve (320).

7. The PLC modular circuit board fixing apparatus of claim 6, wherein the base (310) is fixedly provided with an ear plate (340) on both sides, and the ear plate (340) is provided with a screw (350).

8. The PLC modular circuit board fixing apparatus of claim 6, wherein a fixing bolt (360) is provided at an outer side of the sleeve (320), and a screw of the fixing bolt (360) is screw-fixed with the insert block (330).