Quick plug of PLC (Programmable Logic Controller)

Abstract

The utility model relates to the technical field of electronic components, and discloses a quick plug of a PLC controller, which comprises a shell, a cover plate and a fixing block, a male head is fixedly arranged at the inner bottom of the shell, a sealing mechanism is arranged on the outer wall of the shell, a buckling mechanism is arranged on the upper surface of the cover plate, an inner cover is fixedly sleeved inside the inner wall of the fixing block, and the inner cover is provided with a clamping groove. Limiting grooves are formed in the two ends of the inner wall of the inner cover, a female head is fixedly embedded in the inner bottom of the inner cover, the buckling mechanism comprises a large gear, two small gears and two rotating columns, the two small gears are rotationally connected with the upper surface of the cover plate, and the lower ends of the two small gears are fixedly connected with connectors. According to the technical scheme of the utility model, the quick-connection plug for the PLC can be prevented from loosening and falling off when the quick-connection plug is used, and meanwhile, the quick-connection plug has dustproof and waterproof effects, so that the plug can be effectively prevented from being damaged due to factors such as rainwater or dust and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a quick-connect plug of a PLC controller. Background Art

[0002] A PLC, or Programmable Logic Controller, is an indispensable core device in industrial automation. It consists of a central processing unit (CPU), input / output modules (I / O modules), memory, and communication modules. Due to its high reliability, stability, and ease of programming, PLCs are widely used in various industrial automation fields. However, PLCs require plugs to connect cables, so quick-connect plugs are recommended.

[0003] Most current quick-connect plugs become loose due to prolonged use and dragging of the cable, causing the PLC controller to malfunction. Therefore, those skilled in the art have provided a quick-connect plug for a PLC controller to address the problems raised in the background art. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a quick-connect plug for a PLC controller. The quick-connect plug for a PLC controller can be placed in a position where the plug is loose and falls off during use. At the same time, the plug is also dustproof and waterproof, effectively preventing damage to the plug caused by factors such as rain or dust.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A quick-connect plug for a PLC controller, comprising a housing, a cover plate, and a fixing block. A male connector is fixedly provided at the bottom inner portion of the housing, a sealing mechanism is provided on the outer wall of the housing, a snap mechanism is provided on the upper surface of the cover plate, an inner cover is fixedly sleeved on the inner wall of the fixing block, limiting grooves are provided at both ends of the inner wall of the inner cover, and a female connector is fixedly embedded in the inner bottom of the inner cover.

[0007] The snap mechanism includes a large gear, two small gears and two rotating columns. The two small gears are rotatably connected to the upper surface of the cover plate. The lower ends of the two small gears are fixedly connected to a connecting head. The upper ends of the two rotating columns are provided with a slot. The two slots are respectively snap-fitted with the corresponding connecting heads. The two rotating columns are rotatably connected to the bottom of the shell. The lower ends of the two rotating columns are fixedly connected to an arc block, and the two arc blocks are respectively matched with the corresponding limit grooves.

[0008] Through the above technical solution, by utilizing the rotation of the two small gears and the connecting head, under the action of the card slot, the two rotating columns drive the arc block to rotate, and through the card engagement with the limit slot, the plug can be effectively prevented from loosening and falling off.

[0009] Furthermore, the sealing mechanism includes a first airbag, a hose, and a sealing ring. The first airbag is fixedly connected to the lower surface of the shell. The hose passes through the cover plate. A magic restraint belt is fixedly provided at the upper end of the outer wall of the hose. A second airbag is fixedly provided at the lower end of the inner wall of the hose. The sealing ring is clamped at the connection between the fixed block and the inner cover.

[0010] Through the above technical solution, sealing can be achieved through the mutual cooperation between the first airbag and the sealing ring, and further sealing can be achieved through the mutual cooperation between the second airbag, the hose and the magic restraint belt, thereby achieving the effect of waterproof and dustproof.

[0011] Furthermore, the large gear is rotatably sleeved on the outer wall of the hose and rotatably connected to the cover plate, and the large gear is meshedly connected to the two small gears;

[0012] Through the above technical solution, the small gear can be driven by the large gear.

[0013] Furthermore, bolts are provided through the four corners of the upper surface of the cover plate, and a plurality of the bolts are threadedly connected to the outer shell;

[0014] Through the above technical solution, the cover plate and the shell can be connected by bolts.

[0015] Furthermore, the magic restraint belt is made of polyvinyl chloride, and a magic sticker is fixedly provided on one side wall of the magic restraint belt;

[0016] Through the above technical solution, the hose can be bound under the action of the magic binding belt.

[0017] Furthermore, the male connector and the female connector are snap-fitted together;

[0018] Furthermore, the first airbag and the sealing ring are tightly fitted;

[0019] The sealing effect can be achieved through the above technical solution.

[0020] The utility model has the following beneficial effects:

[0021] 1. Compared with the existing quick-connect plug of a PLC controller, the quick-connect plug of a PLC controller proposed by the utility model has the following advantages: when the quick-connect plug of the PLC controller is put into use, the male head and the female head are connected, and then the large gear is rotated to make the two small gears drive the connecting head to rotate, and the arc block is driven to rotate under the action of the slot and the rotating column, so that the two arc blocks are respectively engaged with the corresponding limit slots, thereby preventing the plug from loosening during use.

[0022] 2. The quick-connect plug for a PLC controller proposed by the present invention is different from the existing quick-connect plug for a PLC controller. When the quick-connect plug for a PLC controller is put into use, the connecting wire is inserted into the hose. As the connecting wire is inserted, the second airbag is squeezed to achieve a sealing effect. Then, the connecting wire is connected to the male head, and the cover and the shell are connected by bolts. Then, the hose is tightened and the magic restraint belt is rotated to wrap the connecting wire and the hose. The first airbag and the sealing ring are fitted together, and the arc block and the limit groove are clamped to achieve better sealing, thereby achieving a waterproof and dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of a quick-connect plug for a PLC controller proposed in the utility model;

[0024] Figure 2 This is a schematic diagram of the pinion, connector and rotating column structure of a quick-connect plug of a PLC controller proposed in the utility model;

[0025] Figure 3 This is a top view of a quick-connect plug for a PLC controller proposed in the utility model;

[0026] Figure 4 This is a schematic diagram of the housing structure of a quick-connect plug for a PLC controller proposed in the utility model;

[0027] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Outer shell; 2. Cover plate; 3. Sealing mechanism; 301. First airbag; 302. Hose; 303. Magic restraint belt; 304. Second airbag; 305. Sealing ring; 4. Buckle mechanism; 401. Large gear; 402. Small gear; 403. Connector; 404. Rotating column; 405. Slot; 406. Arc block; 407. Limiting slot; 5. Male connector; 6. Female connector; 7. Fixing block; 8. Bolt; 9. Inner cover. DETAILED DESCRIPTION

[0030] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and 5 The utility model provides an embodiment of a quick-connect plug for a PLC controller, comprising a housing 1, a cover plate 2, and a fixing block 7. A male connector 5 is fixedly provided at the bottom inner of the housing 1, a sealing mechanism 3 is provided on the outer wall of the housing 1, a snap mechanism 4 is provided on the upper surface of the cover plate 2, an inner cover 9 is fixedly sleeved on the inner wall of the fixing block 7, limiting grooves 407 are provided at both ends of the inner wall of the inner cover 9, and a female connector 6 is fixedly embedded in the inner bottom of the inner cover 9;

[0032] The snap mechanism 4 includes a large gear 401, two small gears 402 and two rotating columns 404. The two small gears 402 are rotatably connected to the upper surface of the cover plate 2. The lower ends of the two small gears 402 are fixedly connected to the connecting head 403. The upper ends of the two rotating columns 404 are provided with a card slot 405. The two card slots 405 are respectively engaged with the corresponding connecting heads 403. The two rotating columns 404 are rotatably connected to the bottom of the shell 1. The lower ends of the two rotating columns 404 are fixedly connected to the arc block 406. The two arc blocks 40 6 respectively cooperate with the corresponding limiting grooves 407, and utilize the rotation of the two small gears 402 and the connector 403, under the action of the card slot 405, the two rotating columns 404 drive the arc block 406 to rotate, and through the card engagement with the limiting grooves 407, it can effectively prevent the plug from loosening and falling off. The large gear 401 is rotatably sleeved on the outer wall of the hose 302 and rotatably connected between the cover plate 2. The large gear 401 is meshed and connected with the two small gears 402, and the small gears 402 can be driven by the large gear 401.

[0033] Reference Figure 1 、 Figure 3 and Figure 4The sealing mechanism 3 includes a first airbag 301, a hose 302 and a sealing ring 305. The first airbag 301 is fixedly connected to the lower surface of the shell 1. The hose 302 passes through the cover plate 2. A magic constraint belt 303 is fixedly provided at the upper end of the outer wall of the hose 302. A second airbag 304 is fixedly provided at the lower end of the inner wall of the hose 302. The sealing ring 305 is clamped at the connection between the fixed block 7 and the inner cover 9. Under the mutual cooperation between the first airbag 301 and the sealing ring 305, sealing can be achieved. Under the mutual cooperation between the second airbag 304, the hose 302 and the magic constraint belt 303 Under the action of the magic restraint belt 303, the hose 302 can be bound, and the male head 5 and the female head 6 are snap-fitted together, and the first airbag 301 and the sealing ring 305 are tightly fitted together to achieve the effect of sealing.

[0034] Working principle: When the present invention is in use, first insert the connecting wire into the hose 302 and connect it with the male head 5, then snap-fit ​​the connecting head 403 and the card slot 405, and connect the cover plate 2 and the shell 1 under the action of the bolt 8, then tighten the hose 302, and wrap the magic constraint belt 303 around the outer wall of the hose 302 to wrap the hose 302 and the connecting wire, then snap-fit ​​the male head 5 and the female head 6, and rotate the large gear 401, so that the two small gears 402 and the connecting head 403 drive the rotating column 404 and the arc block 406 to rotate, as the arc block 406 rotates, under the action of the first airbag 301 and the sealing ring 305, the shell 1 and the fixed block 7 can be tightly fitted, and the snap-fit ​​between the arc block 406 and the limit groove 407 can effectively prevent the plug from loosening and falling off after long-term use.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-connect plug for a PLC controller, comprising a housing (1), a cover plate (2) and a fixing block (7), characterized in that: A male head (5) is fixedly provided on the inner bottom of the shell (1), a sealing mechanism (3) is provided on the outer wall of the shell (1), a snap mechanism (4) is provided on the upper surface of the cover plate (2), an inner cover (9) is fixedly provided on the inner wall of the fixing block (7), limiting grooves (407) are provided at both ends of the inner wall of the inner cover (9), and a female head (6) is fixedly embedded on the inner bottom of the inner cover (9); The snap mechanism (4) comprises a large gear (401), two small gears (402) and two rotating columns (404), the two small gears (402) being rotatably connected to the upper surface of the cover plate (2), the lower ends of the two small gears (402) being fixedly connected to a connector (403), the upper ends of the two rotating columns (404) being provided with a clamping groove (405), the two clamping grooves (405) being respectively engaged with the corresponding connectors (403), the two rotating columns (404) being rotatably connected to the inner bottom of the housing (1), the lower ends of the two rotating columns (404) being fixedly connected to an arc block (406), the two arc blocks (406) being respectively engaged with the corresponding limiting grooves (407).

2. A quick-connect plug for a PLC controller according to claim 1, characterized in that: The sealing mechanism (3) comprises a first airbag (301), a hose (302) and a sealing ring (305); the first airbag (301) is fixedly connected to the lower surface of the shell (1); the hose (302) passes through the cover plate (2); a magic restraint belt (303) is fixedly provided at the upper end of the outer wall of the hose (302); a second airbag (304) is fixedly provided at the lower end of the inner wall of the hose (302); and the sealing ring (305) is clamped at the connection between the fixed block (7) and the inner cover (9).

3. The quick-connect plug for a PLC controller according to claim 1, characterized in that: The large gear (401) is rotatably sleeved on the outer wall of the hose (302) and rotatably connected between the cover plates (2). The large gear (401) is meshedly connected with the two small gears (402).

4. The quick-connect plug for a PLC controller according to claim 1, characterized in that: Bolts (8) are provided at four corners of the upper surface of the cover plate (2), and a plurality of the bolts (8) are threadedly connected to the outer shell (1).

5. The quick-connect plug for a PLC controller according to claim 2, characterized in that: The magic restraint belt (303) is made of polyvinyl chloride, and a magic sticker is fixedly provided on one side wall of the magic restraint belt (303).

6. The quick-connect plug for a PLC controller according to claim 1, characterized in that: The male head (5) and the female head (6) are snap-fitted together.

7. The quick-connect plug for a PLC controller according to claim 2, characterized in that: The first airbag (301) and the sealing ring (305) are tightly fitted together.

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