CN114784542A

CN114784542A - Connecting terminal applied to DCS system

Info

Publication number: CN114784542A
Application number: CN202210373791.7A
Authority: CN
Inventors: 程庆辉; 李发伟; 董树鑫; 李刚; 孙天秀; 王鑫
Original assignee: Uaneng Yimin Coal Power Co Ltd
Current assignee: Uaneng Yimin Coal Power Co Ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-22
Anticipated expiration: 2042-04-07
Also published as: CN114784542B

Abstract

The invention discloses a wiring terminal applied to a DCS (distributed control system), which comprises a socket assembly, wherein the socket assembly comprises a socket, the socket is provided with a jack, a sliding groove extending along the radial direction is arranged on the inner side of the jack, and a sliding block is arranged in the sliding groove; the plug component comprises a plug, the plug is provided with a connecting column, and the side surface of the connecting column is provided with an annular groove along the circumference; the connecting column can be embedded into the jack, a first wire is embedded in the connecting column, a first contact is formed at the end part of the connecting column by the first wire, and a second wire is arranged in the socket; the invention utilizes the socket component and the plug component, has smart structure, convenient wiring and difficult error, and improves the reliability and the stability of the system.

Description

Connecting terminal applied to DCS system

Technical Field

The invention relates to the field of cables of power systems, in particular to a wiring terminal applied to a DCS (distributed control system).

Background

DCS is widely adopted for centralized control in automatic control systems and weak electric systems at present. In industrial device control, power system cable routing is adopted to connect each device of the DCS system. The cables in use at present generally adopt a terminal connection mode. This connection method has the following problems: 1. the assembly process is many, and the operation process is more loaded down with trivial details, and is higher to workman's technical requirement, and the construction period is long and the misconnection appears in the mistake easily. 2. When cooperating the DCS and the PLC of different brands, need carry out the differentiation of mode of connection and handle, need skillfully master system hardware when construction design, it is higher to designer's quality requirement. 3. The problem of poor contact easily occurs to a large number of wiring and crimping points, and hidden dangers are buried for system debugging and long-term operation.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.

Therefore, the technical problems to be solved by the invention are that the assembly process is multiple, the operation process is more complicated, the technical requirements on workers are higher, the construction period is long, and misconnection is easy to occur.

In order to solve the technical problems, the invention provides the following technical scheme: a wiring terminal applied to a DCS system comprises a socket assembly and a wiring terminal, wherein the socket assembly comprises a socket, the socket is provided with a jack, a sliding groove extending along the radial direction is arranged on the inner side of the jack, and a sliding block is arranged in the sliding groove;

the plug assembly comprises a plug, the plug is provided with a connecting column, and the side surface of the connecting column is provided with an annular groove along the circumference; the spliced pole can imbed in the jack, spliced pole inside is inlayed and is had first line, first line forms first contact at spliced pole tip, be provided with the second line in the socket.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: the one end that the slider is close to the jack center is provided with trapezoidal boss, the degree of depth that highly is less than the ring channel of trapezoidal boss, the both sides face of slider is provided with the round platform, the spout side is provided with the spacing groove of bar, the round platform embedding spacing inslot.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: a first elastic piece is arranged between the sliding block and one face, far away from the center of the jack, of the sliding groove.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: a sliding disc is arranged in the jack, a connecting pin is arranged on the side face of the sliding disc, a waist-shaped hole extending along the axial direction is arranged in the jack, the connecting pin is embedded in the waist-shaped hole, a through groove penetrating along the axial direction of the jack is arranged between the waist-shaped hole and the sliding groove, the tail end of the connecting pin is connected with a bolt, the tail end of the bolt is provided with a tip forming a wedge shape, and a notch is formed in the side face, close to the connecting pin, of the sliding block;

when the tip is embedded into the notch, the trapezoidal boss does not completely extend into the jack, and when the tip is separated from the notch, the trapezoidal boss and the part of the sliding block extend into the jack.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: the sliding disc is characterized in that a second elastic piece is arranged between the sliding disc and the bottom of the jack, a through hole penetrating through the sliding disc is formed in the center of the sliding disc, an adjusting column is connected in the through hole in a sliding mode, and a third elastic piece is arranged between the adjusting column and the bottom of the jack.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: the second wire is embedded in the adjusting column and forms a second contact on the end face, close to the first contact, of the adjusting column.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: and the part of the surface of the adjusting column between the sliding disc and the bottom of the jack is provided with an annular boss.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: the inner side of the through hole is provided with an annular groove, the adjusting column is provided with a sliding groove, a sliding block is arranged in the sliding groove, the sliding block is of a right-angled trapezoid structure, and the sliding groove is also of a right-angled trapezoid shape and penetrates to the outside of the adjusting column; and a fourth elastic piece is arranged between the sliding block and the sliding groove.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: an annular deep groove penetrating through the sliding groove is formed in one end, close to the plug, of the adjusting column, an annular long groove extending in the axial direction is formed in the end portion of the connecting column, an annular cylinder is arranged in the annular long groove, a strip-shaped through hole penetrating through the annular long groove is formed in the side face of the plug, an adjusting rod is arranged at the end portion of the annular cylinder, and the adjusting rod is located in the strip-shaped through hole.

As a preferable aspect of the connection terminal applied to the DCS system of the present invention, wherein: and a fifth elastic piece is arranged between the adjusting rod and one end of the strip-shaped through hole close to the socket.

The invention has the beneficial effects that: by utilizing the socket assembly and the plug assembly, the structure is ingenious, the wiring is convenient, the error is not easy to occur, and the reliability and the stability of the system are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic structural diagram of a connection terminal applied to a DCS system according to an embodiment of the present invention before connection;

fig. 2 is a schematic structural diagram of a connection terminal applied to a DCS system according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a partially enlarged structure of fig. 2 applied to a connecting terminal of a DCS system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connection terminal separation process applied to a DCS system according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional structure view of a plane where a slider is located in a connection terminal applied to a DCS system according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.

Next, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the device structures are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1, the present embodiment provides a connection terminal applied to a DCS system, including a socket assembly 100 and a plug assembly 200, wherein the socket assembly 100 and the plug assembly 200 can be combined and connected to form the connection terminal.

The socket assembly 100 includes a socket 101, the socket 101 is provided with a jack 101a, the jack 101a is a circular hole, a sliding groove 101b extending along a radial direction is arranged inside the jack 101a, the two sliding grooves 101b are symmetrically arranged, a sliding block 102 is arranged inside the sliding groove 101b, and the two sliding blocks 102 are also arranged and can slide along the radial direction in the sliding groove 101 b. Plug assembly 200, including plug 201, plug 201 is provided with spliced pole 201a, and spliced pole 201a is cylindrical, and it can clearance fit be connected with jack 101a, also can insert in jack 101 a. The side surface of the connecting column 201a is provided with an annular groove 201b along the circumference, and the width of the annular groove 201b should be larger than the axial width of the sliding block 102; the connection post 201a can be inserted into the insertion hole 101a, the connection post 201a is embedded with a first cord 202, the first cord 202 forms a first contact 202a at the end of the connection post 201a, and a second cord 103 is disposed in the socket 101, wherein the second cord 103 is connected with the first contact 202a to form a passage when the socket assembly 100 and the plug assembly 200 are connected.

In this embodiment, binding post uses in the DCS system, the wiring of the cable of being convenient for.

Example 2

Referring to fig. 1 to 5, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that:

the end of the slider 102 close to the center of the insertion hole 101a is provided with a trapezoidal boss 102a, the trapezoidal boss 102a is in an isosceles trapezoid shape, that is, one end of the slider 102 close to the insertion hole 101a forms two inclined planes, that is, two inclined planes of the trapezoidal boss 102a, wherein the height of the trapezoidal boss 102a is smaller than the depth of the annular groove 201b, that is, when the trapezoidal boss 102a is embedded into the annular groove 201b, the two side surfaces of the slider 102 connected with the inclined planes of the trapezoidal boss 102a are in contact with the side surface of the annular groove 201b, and the axial deviation of the connecting column 201a can be limited at the moment.

Furthermore, two side surfaces of the sliding block 102 are provided with round platforms 102b, side surfaces of the sliding grooves 101b are provided with strip-shaped limiting grooves 101c, and the round platforms 102b are embedded into the limiting grooves 101 c. The round platform 102b can move in the spacing groove 101c, and the spacing groove 101c is the groove of rectangular shape, and wherein the movable range of round platform 102b, trapezoidal boss 102a is: when the slider 102 moves in a direction away from the center of the insertion hole 101a, the trapezoidal boss 102a can move into the sliding groove 101b as a whole, and when the slider 102 moves in a direction close to the center of the insertion hole 101a, the maximum moving position is that the trapezoidal boss 102a is partially and completely located in the insertion hole 101a, at this time, one surface of the trapezoidal boss 102a abuts against the circumferential surface of the annular groove 201b, and the slider 102 has a part of rectangular parallelepiped shape and is located in the annular groove 201b, because the height of the trapezoidal boss 102a is smaller than the depth of the annular groove 201b, that is, the trapezoidal boss 102a is completely embedded into the annular groove 201 b.

Furthermore, a first elastic member 107 is disposed between the slider 102 and a surface of the sliding groove 101b away from the center of the insertion hole 101a, and the first elastic member 107 is a pressure spring.

Furthermore, a sliding disc 104 is arranged in the insertion hole 101a, the sliding disc 104 is disc-shaped and can move in the insertion hole 101a along an axis, a connecting pin 104a is arranged on the side surface of the sliding disc 104, a waist-shaped hole 101d extending along the axial direction is arranged in the insertion hole 101a, the connecting pin 104a is embedded in the waist-shaped hole 101d, namely, the connecting pin 104a and the sliding disc 104 can only move in the range of the waist-shaped hole 101d, a through groove 101e penetrating along the axial direction of the insertion hole 101a is arranged between the waist-shaped hole 101d and the sliding groove 101b, the tail end of the connecting pin 104a is connected with a plug pin 104b, the tail end of the plug pin 104b is provided with a tip 104c to form a wedge shape, and the side surface of the slider 102 close to the connecting pin 104a is provided with a notch 102 c; it should be noted that: when the tip 104c is inserted into the notch 102c, the trapezoidal projection 102a does not fully extend into the insertion hole 101a, and when the tip 104c is disengaged from the notch 102c, the trapezoidal projection 102a and a portion of the slider 102 extend into the insertion hole 101 a.

A second elastic member 105 is arranged between the sliding disc 104 and the bottom of the insertion hole 101a, the second elastic member 105 is a pressure spring, a through hole 104d penetrating through the center of the sliding disc 104 is arranged in the center of the sliding disc 104, an adjusting column 106 is slidably connected in the through hole 104d, a third elastic member 110 is arranged between the adjusting column 106 and the bottom of the insertion hole 101a, and the third elastic member 110 is a pressure spring. It should be noted that, a concave hole may be formed at one end of the adjusting post 106, where the third elastic member 110 is disposed, and one end of the third elastic member 110 is fixedly connected in the concave hole, when the connecting post 201a is inserted into the insertion hole 101a to push the adjusting post 106, and after the annular groove 201b and the trapezoidal boss 102a are clamped in place, one end of the connecting post 201a just abuts against the bottom surface of the insertion hole 101 a.

Preferably, the second wire 103 is embedded within the adjustment post 106 and forms a second contact 103a at an end of the adjustment post 106 adjacent the first contact 202 a. When the connection post 201a is inserted into the receptacle 101a, the second contact 103a makes contact with the first contact 202a to form a passage.

Further, a part of the surface of the adjusting column 106 between the sliding disk 104 and the bottom of the insertion hole 101a is provided with an annular boss 106a, and when the adjusting column 106 moves towards the outer insertion hole 101a, the annular boss 106a can limit the moving distance of the adjusting column 106.

The inner side of the through hole 104d is provided with an annular groove 104e, the adjusting column 106 is provided with two sliding grooves 106b, the two sliding grooves 106b are uniformly arranged, a sliding block 108 is arranged in the sliding groove 106b, the sliding block 108 is of a right trapezoid structure, the acute angle end of the sliding block 108 can extend out of the sliding groove 106b and extend into the annular groove 104e, the sliding groove 106b is also of a right trapezoid shape and penetrates to the outside of the adjusting column 106, and therefore the sliding block 108 can only move in the sliding groove 106b along the radial direction; a fourth elastic member 109 is provided between the slide block 108 and the slide groove 106 b. The fourth elastic member 109 is a compression spring, and when the connection terminal is not connected, the acute-angled end of the sliding block 108 extends out of the sliding groove 106b and into the annular groove 104e, and at this time, the annular boss 106a contacts with the end surface of the sliding disk 104. When the connection post 201a enters the insertion hole 101a, the end portion thereof will contact the adjustment post 106 and push the adjustment post 106 to compress the third elastic member 110, at this time, since one end of the sliding block 108 is embedded in the annular groove 104e, the adjustment post 106 will drive the sliding disc 104 to move at the same time, and the installation position of the sliding block 108 is that the short side of the sliding block is close to the connection post 201 a.

Furthermore, an annular deep groove 106c penetrating the sliding groove 106b is formed at one end of the adjusting column 106 close to the plug 201, and penetrates to one end face of the sliding groove 106b, that is, the inclined surface of the sliding groove 106b penetrates the annular deep groove 106 c. Correspondingly, an annular long groove 201c extending along the axial direction is formed in the end portion of the connecting column 201a, an annular cylinder 203 is arranged in the annular long groove 201c, a strip-shaped through hole 201d penetrating through the annular long groove 201c is formed in the side face of the plug 201, an adjusting rod 203a is arranged at the end portion of the annular cylinder 203, and the adjusting rod 203a is located in the strip-shaped through hole 201 d. A fifth elastic element 204 is arranged between the adjusting rod 203a and one end of the strip-shaped through hole 201d close to the socket 101, and the fifth elastic element 204 is a pressure spring. Therefore, when the adjustment rod 203a is operated to move the annular cylinder 203 axially and toward the adjustment post 106, one end of the annular cylinder 203 enters the annular deep groove 106c and abuts against the inclined surface of the slide block 108, thereby pushing the slide block 108 to retract toward the interior of the adjustment post 106.

In this embodiment, the principle of the connection terminal is as follows: before connection, namely in an initial state, under the action of the first elastic piece 107, the second elastic piece 105, the third elastic piece 110 and the fourth elastic piece 109, the sliding disc 104 is at a position close to the opening of the insertion hole 101a, the tip 104c is embedded into the notch 102c to limit the sliding block 102 from moving towards the center of the insertion hole 101a, the trapezoid boss 102a is partially arranged in the insertion hole 101a, and the trapezoid boss 102a is partially arranged in the sliding groove 101 b; in the connection process, that is, in the process that the connection column 201a enters the insertion hole 101a, firstly, the end of the connection column 201a contacts the side inclined plane of the trapezoidal boss 102a and pushes the slider 102 to contract towards the inside of the sliding groove 101b, then, the connection column 201a contacts the adjusting column 106 and pushes the adjusting column 106 to compress the third elastic member 110, at this time, since one end of the sliding block 108 is embedded in the annular groove 104e, the adjusting column 106 simultaneously drives the sliding disc 104 to move, so that the tip 104c is separated from the notch 102c, until the connection column 201a pushes the adjusting column 106 to contact the bottom of the insertion hole 101a, the annular groove 201b passes over the slider 102 to just coincide with the sliding groove 101b, and under the action of the first elastic member 107, the part of the slider 102 and the trapezoidal boss 102a integrally enter the annular groove 201b to form clamping, referring to the position a of fig. 2, at this time, two side surfaces of the slider 102 contact and clamp the side surfaces of the annular groove 201b, limiting the axial excursion of the connecting column 201 a; when the connection terminal needs to be separated, when the adjustment rod 203a is operated to enable the annular cylinder 203 to move axially and towards the adjustment column 106, one end of the annular cylinder 203 enters the annular deep groove 106c and abuts against the inclined surface of the sliding block 108, so that the sliding block 108 is pushed to contract towards the inside of the adjustment column 106 to be separated from the annular groove 104e, at this time, under the action of the second elastic element 105, the sliding disc 104 moves towards the direction close to the connection column 201a, so that the tip 104c is embedded into the notch 102c, the inclined surface of the tip 104c drives the sliding block 102 to contract towards the inside of the sliding groove 101B, referring to the position B of fig. 4, at this time, the part of the trapezoidal boss 102a enters the sliding groove 101B, when the plug 201 is pulled outwards, the connection column 201a and the annular groove 201B are separated from the insertion hole 101a along the inclined surface of the trapezoidal boss 102a, and after separation, the part of the trapezoidal boss 102a rebounds to the insertion hole 101a again. The invention is applied to a DCS system, can quickly connect the wiring terminal of the wire slot and realize quick connection and removal.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a be applied to binding post of DCS system which characterized in that: comprises the steps of (a) preparing a substrate,

the socket assembly (100) comprises a socket (101), wherein the socket (101) is provided with a jack (101a), a sliding groove (101b) extending along the radial direction is formed in the inner side of the jack (101a), and a sliding block (102) is arranged in the sliding groove (101 b);

the plug assembly (200) comprises a plug (201), the plug (201) is provided with a connecting column (201a), and the side surface of the connecting column (201a) is provided with an annular groove (201b) along the circumference; the connecting column (201a) can be embedded into the jack (101a), a first wire (202) is embedded into the connecting column (201a), a first contact (202a) is formed at the end part of the connecting column (201a) by the first wire (202), and a second wire (103) is arranged in the socket (101).

2. The connection terminal applied to the DCS system of claim 1, wherein: one end, close to the center of the insertion hole (101a), of the sliding block (102) is provided with a trapezoidal boss (102a), the height of the trapezoidal boss (102a) is smaller than the depth of the annular groove (201b), two side faces of the sliding block (102) are provided with round tables (102b), side faces of the sliding groove (101b) are provided with strip-shaped limiting grooves (101c), and the round tables (102b) are embedded into the limiting grooves (101 c).

3. The connection terminal applied to the DCS system of claim 2, wherein: a first elastic piece (107) is arranged between the sliding block (102) and one surface of the sliding groove (101b) far away from the center of the insertion hole (101 a).

4. A connecting terminal for DCS system as claimed in claim 3, wherein: the improved structure of the sliding block is characterized in that a sliding disc (104) is arranged in the insertion hole (101a), a connecting pin (104a) is arranged on the side face of the sliding disc (104), a waist-shaped hole (101d) extending along the axial direction is arranged in the insertion hole (101a), the connecting pin (104a) is embedded into the waist-shaped hole (101d), a through groove (101e) penetrating along the axial direction of the insertion hole (101a) is formed between the waist-shaped hole (101d) and the sliding groove (101b), a plug pin (104b) is connected to the tail end of the connecting pin (104a), a tip (104c) is arranged at the tail end of the plug pin (104b) to form a wedge shape, and a notch (102c) is formed in the side face, close to the connecting pin (104a), of the sliding block (102).

5. A connecting terminal for DCS system according to claim 3 or 4, characterized in that: be provided with second elastic component (105) between slip dish (104) and jack (101a) bottom, slip dish (104) center is provided with through-hole (104d) that runs through, sliding connection has regulation post (106) in through-hole (104d), be provided with third elastic component (110) between regulation post (106) and jack (101a) bottom.

6. The connection terminal for DCS system according to claim 5, wherein: the second wire (103) is embedded in the adjusting column (106) and forms a second contact point (103a) on the end face of the adjusting column (106) close to the first contact point (202 a).

7. The connection terminal applied to DCS system of claim 6, wherein: the adjusting column (106) is provided with an annular boss (106a) on the partial surface between the sliding disk (104) and the bottom of the insertion hole (101 a).

8. The connection terminal applied to DCS system of claim 7, wherein: an annular groove (104e) is formed in the inner side of the through hole (104d), a sliding groove (106b) is formed in the adjusting column (106), a sliding block (108) is arranged in the sliding groove (106b), the sliding block (108) is of a right-angled trapezoid structure, and the sliding groove (106b) is also of a right-angled trapezoid shape and penetrates through the adjusting column (106); and a fourth elastic piece (109) is arranged between the sliding block (108) and the sliding groove (106 b).

9. The connection terminal applied to the DCS system of claim 8, wherein: an annular deep groove (106c) penetrating through the sliding groove (106b) is formed in one end, close to the plug (201), of the adjusting column (106), an annular long groove (201c) extending along the axial direction is formed in the end portion of the connecting column (201a), an annular cylinder (203) is arranged in the annular long groove (201c), a strip-shaped through hole (201d) penetrating through the annular long groove (201c) is formed in the side face of the plug (201), an adjusting rod (203a) is arranged at the end portion of the annular cylinder (203), and the adjusting rod (203a) is located in the strip-shaped through hole (201 d).

10. The connection terminal applied to the DCS system of claim 9, wherein: and a fifth elastic piece (204) is arranged between the adjusting rod (203a) and one end of the strip-shaped through hole (201d) close to the socket (101).