Signal feedback device with multiple wiring terminals

Abstract

The utility model provides a signal feedback device with multiple wiring terminals, which comprises a panel, a bottom shell and a pressure switch, the panel and the bottom shell are respectively located at the front end and the rear end of the pressure switch, knock-off holes are formed in the periphery of the bottom shell, threading screw holes are formed in the four corners of the bottom shell, fixed supports are arranged on the left side and the right side of the bottom shell, support fixing holes are formed in the fixed supports, and the pressure switch is arranged in the support fixing holes. Bolt holes and fixing bolts are arranged at four corners of the panel, a mounting plate is arranged on the panel, a pneumatic piston, an air cylinder and a change-over reducer are mounted in the center of the mounting plate, a microswitch is arranged in the pneumatic piston, the outer end of the microswitch is connected with three groups of wiring terminals, and the three groups of wiring terminals are located on the back of the panel. Wherein two groups of wiring terminals are respectively provided with a normally open contact. According to the pressure switch, the multiple sets of wiring terminals are arranged, the control number of a single pressure switch is increased, each wiring terminal can be independently operated through a normally-open contact, and the pressure condition of gas or liquid flowing through a pipeline is monitored in time.

Description

Technical Field

[0001] The utility model relates to the technical field of fire monitoring equipment, in particular to a signal feedback device with multiple wiring terminals. Background Art

[0002] One of the most critical safety devices in the signal feedback device for fire protection is the pressure switch, which plays a vital role in the fire protection system. This type of switch is usually used to monitor water flow or air pressure, and trigger an alarm or start linkage equipment when the preset pressure threshold is reached. Fire protection pressure switches work based on mechanical or electronic sensing technology, and they can detect pressure changes in the pipeline. When the pressure increases, the sensor inside the switch senses this change and activates the switch through a mechanical linkage mechanism or an electronic signal transmission mechanism. This action can be to open or close the circuit, thereby linking the pump or other fire protection equipment. Fire protection pressure switches are widely used in automatic sprinkler fire extinguishing systems (such as wet pipes, dry pipe systems), foam fire extinguishing systems, gas fire extinguishing systems, and fire pump sets. In these systems, pressure switches are not only used to monitor the system status, but also to start linkage equipment to ensure the normal operation of the system.

[0003] In the prior art, during the use of the signal feedback device for fire protection, multi-line detection cannot be performed, but only single-line detection can be performed, which increases the installation complexity of the pressure switch during use; therefore, we have made improvements to this and proposed a signal feedback device with multiple terminals installed in a pipeline to monitor the pressure of the gas or liquid flowing through the pipeline. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the current design of fire monitoring equipment cannot perform multi-line detection but can only perform single-line detection.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] A signal feedback device with multiple wiring terminals is provided to improve the above problems.

[0007] The specific application is as follows:

[0008] A signal feedback device with multiple wiring terminals comprises a panel, a bottom shell and a pressure switch, wherein the panel and the bottom shell are respectively located at the front and rear ends of the pressure switch, knock-out holes are arranged around the bottom shell, threaded screw holes are arranged at the four corners of the bottom shell, fixed brackets are arranged on the left and right sides of the bottom shell, bracket fixing holes are arranged on the fixed brackets, bolt holes and fixing bolts are arranged at the four corners of the panel, a mounting plate is arranged on the panel, a pneumatic piston, a cylinder and a switching reducer are installed in the center of the mounting plate, a micro switch is arranged inside the pneumatic piston, the outer end of the micro switch is connected to three groups of wiring terminals, the three groups of wiring terminals are located on the back of the panel, and two groups of wiring terminals are respectively provided with normally open contacts.

[0009] As a preferred technical solution of the present application, the bracket fixing hole is used to fix the pressure switch on the wall, and the adapter reducer and reducer are used to connect the pipeline and the cylinder.

[0010] As a preferred technical solution of the present application, the threaded screw holes are used to connect and fix the bottom shell and the panel, and the fixing holes are used to connect and fix the bracket and the bottom shell.

[0011] As a preferred technical solution of the present application, the cylinder and the micro switch are connected to each other, a pressure sensor is provided in the cylinder, and a signal connection is provided between the pressure sensor and the wiring terminal.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the scheme of this application:

[0014] There are three groups of terminals, two of which are equipped with a pair of normally open contacts for outputting pressure signals. In the use of fire-fighting pressure switches, the number of controls of a single pressure switch is increased, and each terminal can be operated independently to monitor the pressure of the gas or liquid flowing through the pipeline in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of the signal feedback device with multiple wiring terminals provided in this application;

[0016] Figure 2 A front view of a panel of a signal feedback device with multiple wiring terminals provided in the present application;

[0017] Figure 3 A left side view of a pressure switch of a signal feedback device with multiple wiring terminals provided in the present application;

[0018] Figure 4 A top view of a pressure switch of a signal feedback device with multiple wiring terminals provided in the present application;

[0019] Figure 5 A pressure signal diagram of a pressure switch of a signal feedback device with multiple wiring terminals provided in this application.

[0020] Indicated in the figure:

[0021] 1. Panel; 2. Bottom shell; 3. Wiring terminal; 4. Fixing bolt; 5. Cylinder; 6. Fixing bracket; 7. Knock-out hole; 8. Mounting plate; 9. Pneumatic piston; 10. Adapter; 11. Bolt hole; 12. Bracket fixing hole. DETAILED DESCRIPTION

[0022] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0023] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but only represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] like Figure 1-5 As shown, the present embodiment proposes a signal feedback device with multiple wiring terminals 3, including a panel 1, a bottom shell 2 and a pressure switch, wherein the panel 1 and the bottom shell 2 are respectively located at the front and rear ends of the pressure switch, knock-out holes 7 are arranged on all sides of the bottom shell 2, threaded screw holes are arranged at the four corners of the bottom shell 2, a fixing bracket 6 is arranged on the left and right sides of the bottom shell 2, a bracket fixing hole 12 is arranged on the fixing bracket 6, bolt holes 11 and fixing bolts 4 are arranged at the four corners of the panel 1, a mounting plate 8 is arranged on the panel 1, a pneumatic piston 9, a cylinder 5 and a switching head 10 are installed in the center of the mounting plate 8, a micro switch is arranged inside the pneumatic piston 9, and three groups of wiring terminals 3 are connected to the outer ends of the micro switch, and the three groups of wiring terminals 3 are located on the back of the panel 1, wherein two groups of wiring terminals 3 are each provided with a normally open contact.

[0026] The bracket fixing hole 12 is used to fix the pressure switch on the wall, and the adapter reducer 10 is connected to the pipeline and the cylinder 5. The adapter reducer 10 is used to connect to the inner cavity of the monitored pipeline.

[0027] The threaded screw holes are used to connect and fix the bottom shell 2 and the panel 1, and the fixing holes are used to connect and fix the bracket 6 and the bottom shell 2. In the two interconnected components, sealing rings are provided to seal and position the corresponding parts, and at the same time, the sealing of the entire device for detecting fluid and the accuracy of the detection results can be ensured.

[0028] The cylinder 5 is connected to the micro switch. A pressure sensor is arranged inside the cylinder 5. The pressure sensor is connected to the wiring terminal 3 for signal transmission. The pressure sensor is used for transmitting a pressure electrical signal.

[0029] When the present application is in use: the pressure switch is installed and fixed to the pipeline through the bracket fixing hole 12 of the fixing bracket 6, the pneumatic piston 9 and the cylinder 5 are connected to the inner cavity of the monitored pipeline through the adapter reducer 10, when gas or liquid flows through the monitored pipeline, part of the gas or liquid enters the cylinder 5 through the adapter reducer 10, when the gas or liquid pressure reaches the activity threshold of the pneumatic piston 9, the piston of the cylinder 5 will be pushed to the corresponding position, at this time, the micro switch contacts located in the cylinder 5 are closed, and a closing signal is transmitted, and the closing signal outputs two sets of action signals (closing signal one and closing signal two) through the terminal 3; at the same time, the pressure sensor in the cylinder 5 is subjected to pressure, and a pressure-sensitive current is generated, and the pressure-sensitive current outputs a pressure sensor signal through a group of terminals of the terminal 3.

[0030] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A signal feedback device with multiple wiring terminals, comprising a panel (1), a bottom shell (2) and a pressure switch, wherein the panel (1) and the bottom shell (2) are respectively located at the front and rear ends of the pressure switch, and characterized in that: The bottom shell (2) is provided with knock-out holes (7) on all four sides, and the four corners of the bottom shell (2) are provided with threaded screw holes. The left and right sides of the bottom shell (2) are respectively provided with fixing brackets (6), and the fixing brackets (6) are provided with bracket fixing holes. The four corners of the panel (1) are provided with bolt holes and fixing bolts (4). The panel (1) is provided with a mounting plate (8), and a pneumatic piston (9), a cylinder (5) and a switching head are installed in the center of the mounting plate (8). A micro switch is provided inside the pneumatic piston (9), and the outer end of the micro switch is connected to three groups of wiring terminals (3). The three groups of wiring terminals (3) are located on the back of the panel (1), and two groups of wiring terminals (3) are each provided with a normally open contact.

2. A signal feedback device for multiple terminals according to claim 1, characterized in that: The bracket fixing hole is used to fix the pressure switch on the wall, and the adapter reducer is connected to the pipeline and the cylinder (5).

3. The signal feedback device of multiple terminals according to claim 2, characterized in that: The threaded screw holes are used to connect and fix the bottom shell (2) and the panel (1), and the fixing holes are used to connect and fix the bracket (6) and the bottom shell (2).

4. The signal feedback device of multiple terminals according to claim 3, characterized in that: The cylinder (5) is connected to the micro switch, a pressure sensor is provided in the cylinder (5), and a signal connection is established between the pressure sensor and the wiring terminal (3).

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