CN214097654U

CN214097654U - Terminal board for eliminating induced electrical interference of digital quantity input signal of DCS system

Info

Publication number: CN214097654U
Application number: CN202023099483.5U
Authority: CN
Inventors: 朱志刚; 彭勃; 龚家华
Original assignee: Shenzhen Nanshan Thermal Power Co ltd
Current assignee: Shenzhen Nanshan Thermal Power Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-31
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a terminal board for eliminating the induced electrical interference of digital input signals of a DCS, which comprises a terminal board body, a first fixing frame and a second fixing frame, a first fixing frame and a second fixing frame are embedded and fixed on the top end surface of the terminal board body, a first through hole is formed in the second fixing frame, and a first fixing piece is arranged in the first through hole in a sliding way and is fixedly arranged on the top end surface of the first through hole through a first spring, a second bolt is rotatably arranged on the top end surface of the second fixing frame, a second fixing rod is fixedly embedded in the top end surface of the first fixing piece, the first fixing rod is sleeved in the second fixing rod in a sliding manner, a second through hole is formed in the first fixing frame, and a second fixing piece is slidably mounted in the second through hole and fixedly mounted on the top end face of the second through hole through a second spring. The utility model discloses possess the simple operation, later maintenance convenient and fast and the advantage that interference-proof performance is high.

Description

Terminal board for eliminating induced electrical interference of digital quantity input signal of DCS system

Technical Field

The utility model relates to a DCS system digital quantity input signal technical field specifically is a eliminate terminal block of DCS system digital quantity input signal induced electrical interference.

Background

The terminal board for eliminating the induced electrical interference of the digital input signal of the DCS system is as follows: the existing digital input signal of the DCS is generally directly connected to a terminal board of a digital input module of the DCS through a signal cable by field equipment. Because some field devices are far away and the shielding layer of a signal cable is aged or the cable is not shielded, the digital input signals have undesirable alternating-current induced voltage and are superposed in a digital input loop of the DCS system, so that errors of the digital input signals are easily caused, and the channels of the digital input module of the DCS system are seriously damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eliminate terminal block of DCS system digital quantity input signal induced electrical interference to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the terminal board comprises a terminal board body, a first fixing frame and a second fixing frame, wherein the first fixing frame and the second fixing frame are fixed on the top end face of the terminal board body in an embedded mode, a first through hole is formed in the second fixing frame, a first fixing piece is arranged in the first through hole in a sliding mode, the first fixing piece is fixedly installed on the top end face of the first through hole through a first spring, a second through hole is formed in the first fixing frame, a second fixing piece is installed in the second through hole in a sliding mode, and the second fixing piece is fixedly installed on the top end face of the second through hole through a second spring.

Preferably, the outer surface of the terminal board body is fixedly embedded with four fixing lugs, and the four fixing lugs are distributed in a rectangular array relative to the terminal board body.

Preferably, a second fixing rod is fixedly embedded in the top end face of the first fixing piece, the first fixing rod is sleeved in the second fixing rod in a sliding mode, and the first fixing rod is fixedly installed on the top end face of the first through hole.

Preferably, the top end face of the second fixing frame is rotatably provided with a second bolt, and the second bolt limits the first fixing piece.

Preferably, a second limiting rod is fixedly embedded in the top end face of the second fixing piece, a first limiting rod is sleeved in the second limiting rod in a sliding mode, and the first limiting rod is fixedly installed on the top end face of the second through hole.

Preferably, the top end face of the first fixing frame is rotatably provided with a first bolt, and the first bolt limits the second through hole.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model is provided with the first fixing frame and the second fixing frame, the personnel can sleeve the cable to be used in the first through hole and the second through hole of the first fixing frame and the second fixing frame, after the sleeve joint, the personnel rotates the second bolt to downwards enter the first through hole, after the cable enters the first through hole, the second bolt extrudes the first fixing piece to downwards quickly fix the cable in the first through hole, after the personnel sleeve the cable in the second through hole, the personnel rotates the first bolt to downwards extrude the second fixing piece to downwards, when the second fixing piece is downwards, the cable in the second through hole is quickly fixed, and after the fixing, the second bolt and the first bolt are rotated to make the first fixing piece and the second fixing piece quickly rise through the pulling force of the first spring and the second spring, the cable in the first through hole and the second through hole can be conveniently and quickly taken out, the replacement and the maintenance are convenient and quick, meanwhile, the later interference influence on the normal use can be prevented by spraying the signal shielding layer, the practicability is higher, and the operation is more convenient.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic side view of the second fixing frame of the present invention;

fig. 3 is a schematic side view of the first fixing frame of the present invention.

In the figure: 1. fixing the ear; 2. a terminal plate body; 3. a first fixing frame; 4. a first bolt; 5. a second bolt; 6. a second fixing frame; 7. a first through hole; 8. a first fixing member; 9. a first spring; 10. a first fixing lever; 11. a second fixing bar; 12. a second through hole; 13. a second fixing member; 14. a second spring; 15. a first limit rod; 16. a second limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a terminal board for eliminating induced electrical interference of digital input signals of a DCS comprises a terminal board body 2, a first fixing frame 3 and a second fixing frame 6, wherein fixing lugs 1 are embedded and fixed on the outer surface of the terminal board body 2, the number of the fixing lugs 1 is four, the four fixing lugs 1 are distributed in a rectangular array relative to the terminal board body 2, a first fixing frame 3 and a second fixing frame 6 are embedded and fixed on the top end surface of the terminal board body 2, a first through hole 7 is formed in the second fixing frame 6, a first fixing piece 8 is slidably mounted in the first through hole 7, the first fixing piece 8 is fixedly mounted on the top end surface of the first through hole 7 through a first spring 9, a second fixing rod 11 is embedded and fixed on the top end surface of the first fixing piece 8, a first fixing rod 10 is slidably sleeved on the second fixing rod 11, and the first fixing rod 10 is fixedly mounted on the top end surface of the first through hole 7, second bolt 5 is installed in the top end face rotation of second mount 6, and second bolt 5 carries on spacingly to first mounting 8, second through-hole 12 has been seted up in first mount 3, and slidable mounting has second mounting 13 in the second through-hole 12, second mounting 13 passes through second spring 14 fixed mounting at the top end face of second through-hole 12, and all spraying has the signal shielding layer on first through-hole 7, second through-hole 12, first mounting 8 and the second mounting 13, and the signal shielding layer is prior art infrastructure, and this technical field personnel can according to actual demand purchase.

A second limiting rod 16 is fixedly embedded in the top end face of the second fixing piece 13, a first limiting rod 15 is sleeved in the second limiting rod 16 in a sliding mode, the first limiting rod 15 is fixedly installed on the top end face of the second through hole 12, a first bolt 4 is rotatably installed on the top end face of the first fixing frame 3, the first bolt 4 limits the second through hole 12, a person can sleeve a cable to be used in the first through hole 7 and the second through hole 12 of the first fixing frame 3 and the second fixing frame 6 through arranging the first fixing frame 3 and the second fixing frame 6, the person rotates the second bolt 5 to spirally downwards enter the first through hole 7 after the sleeve joint, the second bolt 5 extrudes the first fixing piece 8 to quickly fix the cable in the first through hole 7 downwards after the entry, and rotates the first bolt 4 to spirally downwards extrude the second fixing piece 13 downwards after the person sleeves the cable in the second through hole 12, second mounting 13 is fixed fast to the cable in the second through-hole 12 when down to it makes first mounting 8 and second mounting 13 rise fast through first spring 9 and second spring 14's pulling force to rotate after fixed and take off second bolt 5 and first bolt 4, conveniently take out the cable in first through-hole 7 and the second through-hole 12 fast, convenient quick with trading and maintaining, accessible spraying signal shielding layer prevents that later stage interference from influencing normal use simultaneously, makes the practicality higher, it is more convenient to operate.

The working principle is as follows: personnel can sleeve the cable to be used in the first through hole 7 and the second through hole 12 of the first fixing frame 3 and the second fixing frame 6, after the sleeve connection, the personnel rotates the second bolt 5 to spirally enter the first through hole 7 downwards, after the entry, the second bolt 5 extrudes the first fixing piece 8 to rapidly fix the cable in the first through hole 7 downwards, after the personnel sleeve the cable in the second through hole 12, the personnel rotate the first bolt 4 to spirally press the second fixing piece 13 downwards, when the second fixing piece 13 is downwards, the cable in the second through hole 12 is quickly fixed, and fixed back is rotated and is taken off second bolt 5 and first bolt 4 and make first mounting 8 and second mounting 13 rise fast through the pulling force of first spring 9 and second spring 14, conveniently takes out the cable in first through-hole 7 and the second through-hole 12 fast, and convenient quick with trading and maintaining, accessible spraying signal shielding layer prevents that later stage interference from influencing normal use simultaneously.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an eliminate terminal block of DCS system digital quantity input signal induced electrical interference, includes terminal block body (2), first mount (3) and second mount (6), its characterized in that: the terminal board is characterized in that a first fixing frame (3) and a second fixing frame (6) are fixed to the top end face of the terminal board body (2) in an embedded mode, a first through hole (7) is formed in the second fixing frame (6), a first fixing piece (8) is installed in the first through hole (7) in a sliding mode, the first fixing piece (8) is fixedly installed on the top end face of the first through hole (7) through a first spring (9), a second through hole (12) is formed in the first fixing frame (3), a second fixing piece (13) is installed in the second through hole (12) in a sliding mode, and the second fixing piece (13) is fixedly installed on the top end face of the second through hole (12) through a second spring (14).

2. The terminal board for eliminating the induced electrical interference of the digital input signal of the DCS according to the claim 1, wherein: the outer surface embedding of terminal board body (2) is fixed with fixed ear (1), and fixed ear (1) is equipped with four altogether, and four fixed ear (1) are the rectangular array distribution relatively terminal board body (2).

3. The terminal board for eliminating the induced electrical interference of the digital input signal of the DCS according to the claim 1, wherein: a second fixing rod (11) is fixedly embedded in the top end face of the first fixing piece (8), a first fixing rod (10) is sleeved in the second fixing rod (11) in a sliding mode, and the first fixing rod (10) is fixedly installed on the top end face of the first through hole (7).

4. The terminal board for eliminating the induced electrical interference of the digital input signal of the DCS according to the claim 1, wherein: and a second bolt (5) is rotatably arranged on the top end surface of the second fixing frame (6), and the first fixing piece (8) is limited by the second bolt (5).

5. The terminal board for eliminating the induced electrical interference of the digital input signal of the DCS according to the claim 1, wherein: the top end face of the second fixing piece (13) is fixedly embedded with a second limiting rod (16), the second limiting rod (16) is sleeved with a first limiting rod (15) in a sliding mode, and the first limiting rod (15) is fixedly installed on the top end face of the second through hole (12).

6. The terminal board for eliminating the induced electrical interference of the digital input signal of the DCS according to the claim 1, wherein: the top end face of the first fixing frame (3) is rotatably provided with a first bolt (4), and the first bolt (4) limits the second through hole (12).