CN203536597U - Pin protection device and PLC module thereof - Google Patents

Abstract

A pin protection device and its PLC module, which has a plurality of through holes (12) through which pins can pass through, each through hole can be interference fit with the pins pierced therein, and the protection device can be relatively When the pin moves, the plug-in end of the pin protrudes out of the through hole of the protection device. The protection device can protect the pins of the PLC module to prevent the pins from being deformed by external force, and when preparing to use the PLC module, there is no need to remove the protection device, which is easy to operate.

Description

Pin protection device and its PLC module

technical field

The utility model relates to a protection device, in particular to a pin protection device. The utility model also relates to a PLC module with the above protection device.

Background technique

In a programmable logic controller (PLC), in addition to the main module, there are also expansion modules that can be assembled to the main module to realize extended functions. There are a plurality of pins on the expansion module, and when assembling, insert the plug-in ends of the pins of the expansion module into the main module.

Due to the long pins on the expansion module, the pin body is easily deformed after being subjected to external force during packaging and transportation, especially the plug-in end, which will cause difficulty in assembly.

Utility model content

The purpose of the utility model is to provide a protection device for pins, which can effectively prevent the pins from being deformed after being subjected to external force.

Another object of the present utility model is to provide a PLC module with the above-mentioned protection device for pins.

The utility model provides a protection device, which has a plurality of through holes for pins to pass through, and each through hole can be interference fit with the pins pierced therein, and the protection device can be moved relative to the pins. The plug-in ends of the pins protrude from the through holes of the protection device.

In an exemplary embodiment of the protection device, each through hole has a guide surface on a side facing the pin, so that the pin can be inserted into the through hole of the protection device more conveniently.

In an exemplary embodiment of the protection device, after the protection device is turned horizontally or vertically, the pins can be inserted into the through holes of the protection device.

The utility model also provides a PLC module, which includes a plurality of pins and the above-mentioned protection device, each pin has a plug-in terminal, each through hole of the protection device can be interference fit with each pin, and the protection device It can be moved relative to the pin so that the plug-in end of the pin protrudes out of the through hole.

The protection device can protect the pins of the PLC module to prevent the pins from being deformed by external force, and when preparing to use the PLC module, there is no need to remove the protection device, which is convenient to operate.

The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of the pin protection device and its PLC module will be further described.

Description of drawings

The following drawings only schematically illustrate and explain the utility model, and do not limit the scope of the utility model.

FIG. 1 is used to illustrate the three-dimensional structure in an exploded state of a schematic embodiment of a pin protection device and the three-dimensional exploded structure of a schematic embodiment of a PLC module.

Fig. 2 is a partial enlarged view of part A in Fig. 1 .

FIG. 3 is used to illustrate the three-dimensional structure after the protection device in FIG. 1 is assembled to the pin.

Fig. 4 is used to illustrate two working states of the protection device in Fig. 1 .

Label description

10 Protection device

12 through holes

14 guide surface

20 PLC module housing

22 pins

222-pin connector.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings, and the same symbols in each figure represent components with the same structure or similar structure but the same function.

In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" should not be interpreted as a more preferred or more advantageous Technical solutions.

In order to make the drawing concise, each drawing only schematically shows the parts related to the utility model, and they do not represent its actual structure as a product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

Herein, "a" not only means "only one", but also means "more than one". in the text.

FIG. 1 is used to illustrate the three-dimensional structure in an exploded state of an exemplary embodiment of a protection device for pins. Fig. 2 is a partial enlarged view of part A in Fig. 1, Fig. 3 is used to illustrate the three-dimensional structure of the protection device in Fig. 1 after being assembled to the pins, and Fig. 4 is used to illustrate two working states of the protection device in Fig. 1 . As shown in Figures 1 to 4, the housing 20 of the PLC module is provided with a plurality of pins 22, and the protection device 10 has a plurality of through holes 12 for the pins 22 to pass through, and each through hole 12 can be connected with the The pin 22 is interference fit therein, and the protection device 10 can move relative to the pin 22 so that the insertion end 222 of the pin 22 protrudes out of the through hole 12 of the protection device.

As shown in Figure a in Figure 4, when the PLC module (see Figure 1) is not in use, insert the pin 22 of the PLC module into the through hole 12 of the protection device 10, and place the protection device 10 in Figure a position, so that the protection device 10 can protect the plug end 222 of the pin 22 . And when it is necessary to connect the PLC module with other devices, there is no need to disassemble the protection device 10, just push the protection device 10 towards the PLC module, as shown in figure b, so that the plug-in end 222 of the pin extends out of the protection device 10 The through hole 12 is connected with other devices. When the PLC module is not in use, the protection device 10 can protect the pins 22 of the PLC module to prevent the pins 22 from being deformed by external force, and when the PLC module is ready to be used, the protection device 10 does not need to be removed, which is convenient to operate.

In the protection device shown in FIG. 4 , each through hole 12 has a guide surface 14 on the side facing the pin 22 , so that the pin 22 can be inserted into the through hole 12 of the protection device 10 more conveniently.

In addition, the protection device 10 can be designed as a symmetrical structure, as shown in Figures 1 to 3, so that after the protection device 10 is turned horizontally or vertically, the pins 22 of the PLC module can be inserted into the through holes of the protection device 10 In 12, adopting such a design can make the use of the protection device more convenient. Of course, according to different design requirements, the shape and structure of the protection device 10 are not limited to those shown in the figure.

The present application also provides a PLC module, as shown in Figure 1, which includes a plurality of pins 22 and the above-mentioned protection device 10, each pin 22 has a plug-in terminal 222 (see figure b in Figure 4), the protection Each through hole 12 of the device 10 can be interference-fitted with each pin 22 , and the protection device 10 can move relative to the pin 22 so that the insertion end 222 of the pin 22 protrudes out of the through hole 12 . The protection device 10 can protect the pins 22 of the PLC module and prevent the pins 22 from being deformed, and the protection device 10 does not hinder the plugging and use of the pins 22 .

The protection device can protect the pins of the PLC module to prevent the pins from being deformed by external force, and when preparing to use the PLC module, there is no need to remove the protection device, which is convenient to operate.

It should be understood that although this description is described according to various embodiments, not each embodiment only includes an independent technical solution, and this description of the description is only for clarity, and those skilled in the art should take the description as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

A series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present utility model, and they are not intended to limit the scope of protection of the present utility model. Embodiments or changes, such as combination, division or repetition of features, should be included in the protection scope of the present utility model.

Claims (4)

1. the protective device of pin; it is characterized in that; described protective device (10) has a plurality of through holes (12) that wear for pin; through hole described in each (12) can with the pin interference fit wearing wherein, and described protective device (10) can move and make the inserted terminal of pin stretch out described through hole (12) with respect to pin.

2. protective device as claimed in claim 1, wherein, the inherent side towards pin of through hole described in each (12) has spigot surface (14).

3. protective device as claimed in claim 1, wherein, after described protective device (10) flip horizontal or flip vertical, can make pin be inserted in the described through hole (12) of described protective device.

4.PLC module, is characterized in that, it comprises:

A plurality of pins (22), pin described in each (22) has an inserted terminal (222); With

A protective device for pin as claimed any one in claims 1 to 3; described in each of described protective device (10) through hole (12) can with pin described in each (22) interference fit, and described protective device (10) can make the inserted terminal (222) of described pin (22) stretch out described through hole (12) with respect to described pin (22) is mobile.

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