Integrated temperature measuring device based on PLC

Abstract

The utility model discloses an integrated temperature measuring device based on a PLC. The integrated temperature measuring device comprises a wiring part, a measuring part, a locking part and a limiting part. The wiring part comprises a seat body, a locking cylinder and a wiring end, the locking cylinder is rotationally installed on the seat body, and the wiring end is arranged in the locking cylinder and used for being electrically connected with the power line communication equipment; the measuring part comprises a temperature measuring head and a connector, and the connector is electrically connected with the temperature measuring head and can extend into the locking cylinder to be electrically connected with the wiring end; the locking part is arranged between the locking cylinder and the connector so as to limit the connector to be separated from the locking cylinder when the locking cylinder rotates; the limiting part is arranged between the locking cylinder and the seat body and used for limiting rotation of the locking cylinder. According to the scheme, stable electric connection between the temperature measuring head and the power line communication equipment is realized, meanwhile, the temperature measuring head can be suitable for more complex environments, the practicability is improved, the structure is simple, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC temperature measuring equipment, in particular to an integrated temperature measuring device based on PLC. Background Art

[0002] PLC (Power Line Communication) refers to a communication method that uses power lines to transmit data and voice signals. Nowadays, the temperature-measuring electrical fire monitoring detectors on the market are combined with PLC technology, which has brought higher communication speeds and more convenient networking methods to the development of temperature measuring devices.

[0003] For example, patent CN 220039679 U discloses a PLC-type temperature inspection device, which includes a PLC controller. The PLC controller (power line communication equipment) is connected to several temperature collection boards, displays, several alarms, analog output modules and LED digital tubes respectively. A maximum of 96 temperature measurement points can be collected. Each temperature collection board inside the device can collect 16 temperature measurement points, which can be flexibly configured according to requirements.

[0004] However, in the existing patents, each temperature acquisition board and the PLC controller are generally connected by plugging, which makes it easy for the temperature acquisition board to be disconnected from the PLC controller and the electrical connection is unstable. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and propose an integrated temperature measuring device based on PLC to solve the technical problem that in the prior art, the temperature acquisition board and the PLC controller are generally connected by plugging, which causes the temperature acquisition board to be easily disconnected from the PLC controller and the electrical connection to be unstable.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an integrated temperature measuring device based on PLC, comprising:

[0008] The wiring part includes a seat body, a locking cylinder and a wiring terminal, wherein the locking cylinder is rotatably mounted on the seat body, and the wiring terminal is built into the locking cylinder for electrically connecting to the power line communication device;

[0009] A measuring part, comprising a temperature measuring head and a connector, wherein the connector is electrically connected to the temperature measuring head and can extend into the locking cylinder to be electrically connected to the terminal;

[0010] a locking portion, disposed between the locking cylinder and the joint, to limit the joint from being separated from the locking cylinder when the locking cylinder rotates; and

[0011] The limiting portion is arranged between the locking cylinder and the seat body, and is used for limiting the rotation of the locking cylinder.

[0012] In some embodiments, the inner wall of the locking cylinder is provided with an internal thread, the outer wall of the joint is provided with an external thread, and the internal thread and the external thread constitute the locking portion.

[0013] In some embodiments, the locking cylinder and the wiring terminal are provided in plurality, the locking cylinders are arranged on the seat body at intervals along the first direction, and the wiring terminals are respectively built in the locking cylinders;

[0014] The limiting portion is movably disposed on the seat body along the first direction, and is provided with a plurality of pressing ends, and the plurality of pressing ends can respectively press against the plurality of locking cylinders when the limiting portion moves;

[0015] Wherein, the measuring part and the locking part are provided in plurality corresponding to the locking cylinder.

[0016] In some embodiments, the seat body is provided with a guide channel along the first direction, and the side wall of the guide channel is provided with a plurality of avoidance grooves, and the plurality of avoidance grooves are arranged at intervals along the first direction and are respectively connected to the side walls of the plurality of locking cylinders;

[0017] The limiting portion is a limiting column, which is movably arranged in the guide channel along the first direction and is provided with a plurality of pressing plates, and one end of which extends out of the guide channel. The pressing plates constitute the pressing ends, and the plurality of pressing plates respectively extend into the plurality of avoidance grooves so that they can be pressed against the corresponding locking cylinders when following the movement of the limiting column.

[0018] In some embodiments, an elastic reset member is provided between the limiting column and the inner wall of the guide channel, and the elastic reset member is used to drive the limiting column to withdraw from the guide channel so that the pressing plate is away from the locking cylinder.

[0019] In some embodiments, a non-slip rubber pad is provided on one side of the pressing plate close to the locking cylinder.

[0020] In some embodiments, one end of the guide channel is connected to a limiting channel, the size of the limiting channel is larger than the size of the guide channel, and a stopping protrusion is provided at one end of the limiting column close to the limiting channel. The stopping protrusion is located in the limiting channel so as to be stopped by the inner wall of the limiting channel close to the guide channel.

[0021] In some embodiments, the seat body is provided with a plurality of installation grooves spaced apart along the first direction, and the side walls of the plurality of installation grooves are respectively connected to the plurality of avoidance grooves;

[0022] One end of the locking cylinder extends into the installation groove, and a limiting protrusion is provided on its side wall. The limiting protrusion extends from the installation groove into the avoidance groove to be pressed by the pressing plate.

[0023] In some embodiments, one end of the locking cylinder close to the bottom of the installation groove is open to form a connecting port, and the seat body is provided with a wiring hole connected to the connecting port.

[0024] In some embodiments, the temperature measuring head includes a temperature measuring seat and a temperature measuring sensor, the temperature measuring sensor is installed on the temperature measuring seat, and a plurality of mounting ears are provided at intervals on the periphery of the temperature measuring seat, and each of the mounting ears is provided with a screw hole.

[0025] Compared with the prior art, in the PLC-based integrated temperature measuring device provided by the utility model, when the connector of the measuring part is difficult to move due to environmental restrictions, the operator can move the seat body close to the connector so that the connector is inserted into the locking cylinder to be electrically connected to the terminal, and then rotate the locking cylinder so that the locking part connects the locking cylinder with the connector, restricting the connector from being separated from the locking cylinder, and improving the stability of the connection between the connector and the terminal. When the locking cylinder of the terminal is difficult to rotate due to environmental restrictions, the operator can insert the connector into the locking cylinder to be electrically connected to the terminal, and then limit the rotation of the locking cylinder relative to the seat body through the limiting part, and fix the seat body, and then rotate the connector so that the connector rotates relative to the locking cylinder, realizing the connection between the locking cylinder and the connector, and restricting the connector from being separated from the locking cylinder. In this way, this solution can be applied to more complex environments while realizing stable electrical connection between the temperature measuring head and the power line communication equipment, and improves practicality, and has a simple structure and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of an integrated temperature measuring device based on PLC provided by an embodiment of the utility model (only one set of measuring parts is shown);

[0027] Figure 2 yes Figure 1 Cross-sectional view of the middle connection part and the limiting part;

[0028] Figure 3 yes Figure 2 Another cross-sectional view of the middle connecting portion and the limiting portion;

[0029] Figure 4 yes Figure 1 The structural diagram of the middle measuring part;

[0030] Figure 5 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0031] Figure 6 yes Figure 2 A schematic cross-sectional view of the center seat body;

[0032] Figure 7 yes Figure 1 The principle block diagram of the integrated temperature measurement device based on PLC.

[0033] Description of reference numerals:

[0034] 1. Wiring part; 11. Seat; 11a. Guide channel; 11b. Avoidance groove; 11c. Limiting channel; 11d. Mounting groove; 11e. Wiring hole; 12. Locking cylinder; 121. Limiting protrusion; 13. Wiring terminal; 2. Power line communication equipment; 3. Measuring part; 31. Temperature measuring head; 311. Temperature measuring seat; 312. Temperature measuring sensor; 313. Mounting ear; 32. Connector; 4. Locking part; 5. Limiting part; 51. Pressing end; 52. Limiting column; 53. Pressing plate; 54. Elastic reset member; 55. Stopping protrusion. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] In order to solve the technical problem in the prior art that the temperature acquisition board and the PLC controller are generally connected by plugging, which causes the temperature acquisition board to be easily disconnected from the PLC controller and the electrical connection to be unstable, the utility model provides an integrated temperature measuring device based on PLC, which can achieve stable electrical connection between the temperature measuring head and the power line communication equipment, and can be applied to more complex environments, improve practicality, and has a simple structure and saves costs.

[0037] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a structural schematic diagram of an integrated temperature measuring device based on PLC in an embodiment of the utility model. The integrated temperature measuring device based on PLC includes a wiring part 1, a measuring part 3, a locking part 4 and a limiting part 5; the wiring part 1 includes a seat body 11, a locking cylinder 12 and a wiring terminal 13, the locking cylinder 12 is rotatably installed on the seat body 11, and the wiring terminal 13 is built into the locking cylinder 12 for electrically connecting to a power line communication device 2; the measuring part 3 includes a temperature measuring head 31 and a connector 32, the connector 32 is electrically connected to the temperature measuring head 31, and can extend into the locking cylinder 12 to electrically connect to the wiring terminal 13; the locking part 4 is arranged between the locking cylinder 12 and the connector 32 to limit the connector 32 from being separated from the locking cylinder 12 when the locking cylinder 12 rotates; the limiting part 5 is arranged between the locking cylinder 12 and the seat body 11, and is used to limit the rotation of the locking cylinder 12.

[0038] In the PLC-based integrated temperature measuring device provided by the utility model, when the connector 32 of the measuring part 3 is difficult to move due to environmental restrictions, the operator can move the seat body 11 close to the connector 32, so that the connector 32 extends into the locking cylinder 12 to be electrically connected to the terminal 13, and then rotate the locking cylinder 12, so that the locking part 4 connects the locking cylinder 12 with the connector 32, restricts the connector 32 from being separated from the locking cylinder 12, and improves the stability of the connection between the connector 32 and the terminal 13. When the locking cylinder 12 of the wiring part 1 is difficult to rotate due to environmental restrictions, the operator can extend the connector 32 into the locking cylinder 12 to be electrically connected to the terminal 13, and then restrict the locking cylinder 12 from rotating relative to the seat body 11 through the limiting part 5, and fix the seat body 11, and then rotate the connector 32, so that the connector 32 rotates relative to the locking cylinder 12, realizes the connection between the locking cylinder 12 and the connector 32, and restricts the connector 32 from being separated from the locking cylinder 12. In this way, this solution can be applied to more complex environments while achieving a stable electrical connection between the temperature measuring head 31 and the power line communication device 2, thereby improving practicality, having a simple structure and saving costs.

[0039] It should be noted that, in one embodiment, the locking portion 4 can be configured in the form of a locking groove and a locking rod, one of which is provided on the inner wall of the locking cylinder 12, and the other is provided on the joint 32. Specifically, the locking groove is configured in an L-shape, and the locking rod first extends into the vertical section of the locking groove. When the locking cylinder 12 and the joint 32 rotate relative to each other, the locking rod extends into the horizontal section of the locking groove to limit the joint 32 from being separated from the locking cylinder 12.

[0040] In another embodiment, see Figure 3 and Figure 4 The inner wall of the locking cylinder 12 is provided with an internal thread, and the outer wall of the joint 32 is provided with an external thread, and the internal thread and the external thread constitute the locking part 4.

[0041] In this embodiment, the locking portion 4 is set as a thread between the locking cylinder 12 and the joint 32. In this way, when connecting the locking cylinder 12 and the joint 32, it is only necessary to make the locking cylinder 12 and the joint 32 rotate relative to each other, and the connection and disconnection can be achieved by forward and reverse rotation. The structure is simple and reliable.

[0042] In one embodiment, a plurality of locking cylinders 12 and a plurality of terminal blocks 13 are provided respectively, and the plurality of locking cylinders 12 are arranged on the base body 11 at intervals along the first direction, and the plurality of terminal blocks 13 are respectively built into the plurality of locking cylinders 12; the limiting portion 5 is movably arranged on the base body 11 along the first direction, and is provided with a plurality of pressing ends 51, and the plurality of pressing ends 51 can be pressed against the plurality of locking cylinders 12 respectively when the limiting portion 5 is movable; wherein, the measuring portion 3 and the locking portion 4 are provided with a plurality of corresponding locking cylinders 12.

[0043] In this embodiment, multiple sets of locking cylinders 12, terminal terminals 13, temperature measuring heads 31 and connectors 32 are provided to enable simultaneous collection of multiple sets of temperature measurement data, and the rotation of multiple locking cylinders 12 can be limited simultaneously through the movement of the limiting portion 5, which is simple and convenient to operate.

[0044] In one embodiment, see Figure 5 and Figure 6 The seat body 11 is provided with a guide channel 11a along the first direction, and the side wall of the guide channel 11a is provided with a plurality of avoidance grooves 11b, and the plurality of avoidance grooves 11b are arranged at intervals along the first direction and are respectively connected to the side walls of the plurality of locking cylinders 12; the limiting portion 5 is a limiting column 52, and the limiting column 52 is movably arranged in the guide channel 11a along the first direction, and is provided with a plurality of pressing plates 53, and one end thereof extends out of the guide channel 11a, and the pressing plate 53 constitutes a pressing end 51, and the plurality of pressing plates 53 extend into the plurality of avoidance grooves 11b, so that they can press against the corresponding locking cylinders 12 when following the movement of the limiting column 52.

[0045] In this embodiment, the limiting column 52 moves along the extension direction of the guide channel 11a, so that by pressing the limiting column 52, the pressing plate 53 on the limiting column 52 can press the locking cylinder 12 to limit the rotation of the locking cylinder 12 relative to the seat body 11. It should be noted that in this solution, the first direction is the length direction of the seat body 11. In addition, in order to increase the friction between the pressing plate 53 and the locking cylinder 12, a non-slip rubber pad is provided on the side of the pressing plate 53 close to the locking cylinder 12.

[0046] In one embodiment, an elastic reset member 54 is provided between the limiting column 52 and the inner wall of the guide channel 11 a , and the elastic reset member 54 is used to drive the limiting column 52 to disengage from the guide channel 11 a , so that the pressing plate 53 is away from the locking cylinder 12 .

[0047] In this embodiment, after the joint 32 and the locking cylinder 12 are connected, the operator releases the limiting column 52. At this time, the limiting column 52 can move in the direction of retreating from the guide channel 11a under the drive of the elastic reset member 54, so that the pressing plate 53 is away from the locking cylinder 12. In this way, the locking cylinder 12 has a degree of rotation freedom when the device is in a natural state, preventing the locking cylinder 12 from restricting the rotation of the cable passing therethrough for a long time and causing the surface to be damaged, thereby extending the service life of the cable. Specifically, the elastic reset member 54 is a compression spring.

[0048] In one embodiment, one end of the guide channel 11a is connected to the limiting channel 11c, the size of the limiting channel 11c is larger than the size of the guide channel 11a, and a stopping protrusion 55 is provided at one end of the limiting column 52 close to the limiting channel 11c. The stopping protrusion 55 is located in the limiting channel 11c to be stopped by the inner wall of the limiting channel 11c close to the guide channel 11a.

[0049] In this embodiment, the stopping protrusion 55 can be stopped by the inner wall of the limiting channel 11c close to the guide channel 11a to prevent the limiting column 52 from accidentally completely separating from the guide channel 11a, thereby improving the stability of the movement of the limiting column 52.

[0050] In one of the embodiments, the seat body 11 is provided with a plurality of mounting grooves 11d at intervals along the first direction, and the side walls of the plurality of mounting grooves 11d are respectively connected to the plurality of avoidance grooves 11b; one end of the locking cylinder 12 extends into the mounting groove 11d, and a limiting protrusion 121 is provided on its side wall, and the limiting protrusion 121 extends from the mounting groove 11d into the avoidance groove 11b for being pressed by the pressing plate 53.

[0051] In this embodiment, the limiting protrusion 121 on the outer wall of the locking cylinder 12 extends from the mounting groove 11d into the avoiding groove 11b, so that the pressing plate 53 can effectively press against the limiting protrusion 121 when following the movement of the limiting column 52 to limit the rotation of the locking cylinder 12 relative to the seat body 11. Specifically, in this solution, the limiting protrusion 121 is arranged in an annular shape, and correspondingly, the portion of the mounting groove 11d that communicates with the avoiding groove 11b is arranged in an annular shape.

[0052] In one embodiment, one end of the locking cylinder 12 near the bottom of the mounting groove 11d is open to form a communication port, and the seat body 11 is provided with a wiring hole 11e connected to the communication port. In addition, the temperature measuring head 31 includes a temperature measuring seat 311 and a temperature measuring sensor 312, and the temperature measuring sensor 312 is installed on the temperature measuring seat 311. The periphery of the temperature measuring seat 311 is provided with a plurality of mounting ears 313 at intervals, and each mounting ear 313 is provided with a screw hole.

[0053] In this embodiment, both ends of the locking cylinder 12 are set to be open, and a wiring hole 11e connected to the connecting port is set on the seat body 11 to facilitate wiring and connecting the terminal 13, making the overall structure more compact. In addition, a mounting ear 313 is set on the temperature sensor 312 to facilitate fixing the temperature measuring seat 311 on the object to be measured through a screw connection.

[0054] Also, see Figure 7 In one embodiment, the power line communication device 2 includes a shell, and a PLC control module and a processor are arranged inside the shell, and the PLC control module, the processor, the terminal 13, the connector 32 and the temperature measuring head 31 are electrically connected.

[0055] An interface is provided on one side of the shell, and the interface is electrically connected to the PLC control module. A communication module and a networking module are also provided inside the shell, and the communication module, the networking module and the processor are electrically connected. A display screen is installed on one side of the shell, and a plurality of control buttons are provided on one side of the display screen, and the display screen, the control buttons and the processor are electrically connected.

[0056] In order to better understand the present invention, the following Figures 1 to 7 The technical solution of the utility model is described in detail:

[0057] When the connector 32 is not easy to rotate due to environmental restrictions, the operator can move the seat body 11 close to the connector 32 so that the connector 32 extends into the locking cylinder 12 to be electrically connected to the terminal 13, and then rotate the locking cylinder 12 so that the connector 32 is screwed to the locking cylinder 12, thereby limiting the connector 32 from being separated from the locking cylinder 12. When the locking cylinder 12 is difficult to rotate due to environmental restrictions, the operator can directly extend the connector 32 into the lock to electrically connect with the terminal 13, and press the limit column 52 to extend one end of the guide channel 11a, so that the pressure plate 53 is pressed against the limit protrusion 121 of the locking cylinder 12, thereby limiting the rotation of the locking cylinder 12 relative to the seat body 11 and fixing the seat body 11. Then, the connector 32 is rotated to screw the connector 32 into the locking cylinder 12, thereby limiting the separation of the connector 32 from the locking cylinder 12. After the operator releases the limit column 52, the limit column 52 is driven by the elastic reset member 54 so that the pressure plate 53 on the limit column 52 can move away from the locking cylinder 12, so that the locking cylinder 12 has rotational freedom.

[0058] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An integrated temperature measuring device based on PLC, characterized in that: include: The wiring part includes a seat body, a locking cylinder and a wiring terminal, wherein the locking cylinder is rotatably mounted on the seat body, and the wiring terminal is built into the locking cylinder for electrically connecting to the power line communication device; A measuring part, comprising a temperature measuring head and a connector, wherein the connector is electrically connected to the temperature measuring head and can extend into the locking cylinder to be electrically connected to the terminal; A locking portion, disposed between the locking cylinder and the joint, to limit the joint from being separated from the locking cylinder when the locking cylinder rotates; and The limiting portion is arranged between the locking cylinder and the seat body, and is used for limiting the rotation of the locking cylinder.

2. The PLC-based integrated temperature measuring device according to claim 1 is characterized in that: The inner wall of the locking cylinder is provided with an internal thread, the outer wall of the joint is provided with an external thread, and the internal thread and the external thread constitute the locking portion.

3. The integrated temperature measuring device based on PLC according to claim 1 is characterized in that: The locking cylinder and the wiring terminal are provided in plurality, the locking cylinders are arranged on the seat body at intervals along the first direction, and the wiring terminals are respectively built in the locking cylinders; The limiting portion is movably disposed on the seat body along the first direction, and is provided with a plurality of pressing ends, and the plurality of pressing ends can respectively press against the plurality of locking cylinders when the limiting portion moves; Wherein, the measuring part and the locking part are provided in plurality corresponding to the locking cylinder.

4. The integrated temperature measuring device based on PLC according to claim 3 is characterized in that: The seat body is provided with a guide channel along the first direction, and the side wall of the guide channel is provided with a plurality of avoidance grooves, and the plurality of avoidance grooves are arranged at intervals along the first direction and are respectively connected to the side walls of the plurality of locking cylinders; The limiting portion is a limiting column, which is movably arranged in the guide channel along the first direction and is provided with a plurality of pressing plates, and one end of which extends out of the guide channel. The pressing plates constitute the pressing ends, and the plurality of pressing plates respectively extend into the plurality of avoidance grooves so that they can be pressed against the corresponding locking cylinders when following the movement of the limiting column.

5. The PLC-based integrated temperature measuring device according to claim 4 is characterized in that: An elastic reset member is provided between the limiting column and the inner wall of the guide channel, and the elastic reset member is used to drive the limiting column to withdraw from the guide channel so that the pressing plate is away from the locking cylinder.

6. The PLC-based integrated temperature measuring device according to claim 4, characterized in that: A non-slip rubber pad is provided on one side of the pressing plate close to the locking cylinder.

7. The PLC-based integrated temperature measuring device according to claim 4, characterized in that: One end of the guide channel is connected to a limiting channel, the size of the limiting channel is larger than that of the guide channel, and a stopping protrusion is provided at one end of the limiting column close to the limiting channel. The stopping protrusion is located in the limiting channel to be stopped by the inner wall of the limiting channel close to the guide channel.

8. The PLC-based integrated temperature measuring device according to claim 4, characterized in that: The seat body is provided with a plurality of installation grooves at intervals along the first direction, and the side walls of the plurality of installation grooves are respectively connected to the plurality of avoidance grooves; One end of the locking cylinder extends into the installation groove, and a limiting protrusion is provided on its side wall. The limiting protrusion extends from the installation groove into the avoidance groove to be pressed by the pressing plate.

9. The PLC-based integrated temperature measuring device according to claim 8, characterized in that: One end of the locking cylinder close to the bottom of the installation groove is open to form a communication port, and the seat body is provided with a wiring hole connected to the communication port.

10. The integrated temperature measuring device based on PLC according to claim 1, characterized in that: The temperature measuring head comprises a temperature measuring seat and a temperature measuring sensor. The temperature measuring sensor is installed on the temperature measuring seat. A plurality of mounting ears are arranged at intervals on the periphery of the temperature measuring seat. Each mounting ear is provided with a screw hole.

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