Thermal instrument junction box of thermal power plant

Abstract

The utility model discloses a thermotechnical instrument junction box of a thermal power plant. The thermotechnical instrument junction box comprises a box body and a fixing mechanism, the front end of the box body is connected with a protective cover through a fastening screw, a mounting groove is formed in the rear side in the box body, avoiding grooves are formed in the middles of the left wall and the right wall of the mounting groove, and a wiring terminal is arranged in the middle of the rear wall of the box body; the fixing mechanism comprises guide sliding columns, a connecting plate and a top plate, the guide sliding columns are arranged on the upper side and the lower side of the interior of the mounting groove respectively, the guide sliding columns are slidably connected with sliding holes correspondingly formed in the right end of the connecting plate respectively, and the top plate is arranged at the end, away from the center in the box body, of the connecting plate. The thermal instrument junction box of the thermal power plant can be internally supported in the corresponding mounting station, the traditional mode that the thermal instrument junction box of the thermal power plant is mounted through bolt body connection is replaced, operation is easy, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring equipment, in particular to a thermal instrument junction box for a thermal power plant. Background Art

[0002] The thermal instrument junction box of a thermal power plant is a special wiring device used to connect and protect the cables of thermal instruments. It is an indispensable part of the thermal instrument system and is used to connect and fix the cables between instrument sensors, transmitters, actuators and other equipment and control systems or display instruments.

[0003] When using the thermal instrument junction box of a thermal power plant, the protective cover is usually removed first, and the wires of the thermal instrument of the thermal power plant are passed through the wire hole protective cover and extended to the inside of the box body. Then, the insulation layer of the wire is stripped off with wire strippers to expose the metal wire of appropriate length. Then, according to the wiring diagram, the corresponding wires are connected to the corresponding terminal blocks, and finally the protective cover is closed again;

[0004] Although the existing thermal instrument junction box of a thermal power plant can be installed and docked with the corresponding work station by fastening bolts during use, the installation and disassembly are cumbersome, which reduces the work efficiency. At the same time, after long-term use, the fastening bolts often rust and strip, which reduces the stability of the thermal instrument junction box of the thermal power plant. For this reason, we propose a thermal instrument junction box for a thermal power plant. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a thermal instrument junction box for a thermal power plant. The position of the top plate can be adjusted by coordinating the adjustment plate and the connecting plate, so that the top plate extends from the inside of the installation groove and finally contacts the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant inside the corresponding installation station, replacing the traditional method of installing the thermal instrument junction box of the thermal power plant by connecting with a bolt body. The utility model is simple to operate, improves work efficiency, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal instrument junction box for a thermal power plant, comprising a box body and a fixing mechanism;

[0007] Box body: The front end is connected with a protective cover by fastening screws, the rear side of the box body is provided with a mounting groove, the middle of the left and right walls of the mounting groove are provided with avoidance grooves, and the middle of the rear wall of the box body is provided with a wiring terminal;

[0008] Fixing mechanism: It includes a guide slide column, a connecting plate and a top plate, the guide slide column is respectively arranged on the upper and lower sides of the inside of the installation groove, the guide slide column is respectively slidably connected with the sliding holes correspondingly arranged on the right end of the connecting plate, and a top plate is arranged at one end of the connecting plate away from the inner center of the box body, and the top plate is respectively slidably connected with the laterally adjacent avoidance grooves, and the position of the top plate can be adjusted by the coordinated arrangement of the adjustment plate and the connecting plate, so that the top plate extends out from the inside of the installation groove and finally contacts with the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant inside the corresponding installation station, replacing the traditional method of installing the thermal instrument junction box of the thermal power plant through bolt connection, which is simple to operate and improves work efficiency.

[0009] Furthermore, the fixing mechanism also includes a mounting rod, an adjustment plate and a limit slot, the mounting rods are respectively arranged on the left and right sides of the front wall of the mounting slot, the middle part of the outer arc surface of the mounting rod is rotatably connected with the adjustment plate through a bearing, the lower end of the adjustment plate is respectively in contact with one end of the laterally adjacent connecting plate close to the inner center of the box body, and a limit slot is arranged on the upper side of the rear end of the adjusting plate, so that the position of the top plate can be adjusted through the connecting plate.

[0010] Furthermore, the fixing mechanism also includes a mounting plate and a limit rod, the mounting plate is slidably connected to the inner wall of the mounting groove, and limit rods are arranged on the left and right sides of the rear end of the mounting plate. The limit rods are respectively located inside the longitudinally adjacent limit grooves, and can drive the adjustment plate to rotate through the limit grooves.

[0011] Furthermore, the fixing mechanism also includes springs, which are respectively arranged between one end of the connecting plate away from the inner center of the box body and the inner wall of the mounting groove. The springs are all sleeved on the outside of the outer side of the guide slide column and can drive the top plate to move and reset through the connecting plate.

[0012] Furthermore, it also includes a screw and an adjusting wheel, wherein the screw is rotatably connected to the middle part of the top wall of the mounting groove through a bearing, the screw is threadedly connected to a threaded hole arranged in the middle part of the upper end of the mounting plate, and the adjusting wheel is arranged at the upper end of the screw, and the position of the limit rod can be adjusted through the mounting plate.

[0013] Furthermore, it also includes a wire hole protection cover, which is respectively arranged in the wire holes opened on the front side of the outer surface of the box body. The wire hole protection cover can protect the wires or cables from wear or damage when entering the box body 1.

[0014] Furthermore, it also includes a rubber pad, which is arranged at the front end of the box body, and the front end of the rubber pad is in contact with the rear end of the protective cover. The rubber pad provides a certain sealing performance to prevent external moisture, dust or other impurities from entering the interior of the junction box.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the thermal instrument junction box of the thermal power plant has the following advantages:

[0016] Before use, move the thermal instrument junction box of the thermal power plant to the designated work location, insert the box body into the corresponding installation position, and then rotate the adjusting wheel, which drives the screw to rotate. During the rotation, the screw drives the mounting plate to move downward through the threaded connection, and the mounting plate drives the limit rod to move downward. During the movement of the limit rod, the limit rod slides inside the limit groove and rotates relative to the limit groove, so that the limit rod drives the adjustment plate to rotate to the side away from the inner center of the base through the limit groove. When the adjustment plate contacts the connecting plate during the rotation, the connecting plate is pushed by the adjusting plate and starts to drive the top plate along the guide slide column. Move to the side away from the inner center of the base, the spring contracts, so that the top plate extends out from the inside of the installation groove and finally contacts the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant in the inside of the corresponding installation station. Through the coordinated arrangement of the adjustment plate and the connecting plate, the position of the top plate can be adjusted, so that the top plate extends out from the inside of the installation groove and finally contacts the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant in the inside of the corresponding installation station, replacing the traditional method of installing the thermal instrument junction box of the thermal power plant through bolt connection, which is simple to operate and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front side cross-sectional structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0020] In the figure: 1 box body, 2 protective cover, 3 wiring terminal, 4 rubber pad, 5 mounting groove, 6 fixing mechanism, 61 guide slide column, 62 connecting plate, 63 top plate, 64 spring, 65 mounting rod, 66 adjusting plate, 67 limit groove, 68 mounting plate, 69 limit rod, 7 screw, 8 adjusting wheel, 9 wire hole protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 , This embodiment provides a technical solution: a thermal instrument junction box for a thermal power plant, comprising a box body 1 and a fixing mechanism 6;

[0023] Box body 1: The front end thereof is connected with a protective cover 2 by fastening screws, a mounting groove 5 is arranged at the rear side of the interior of the box body 1, and avoidance grooves are arranged in the middle of the left and right walls of the mounting groove 5, and a wiring terminal 3 is arranged in the middle of the rear wall of the box body 1. After the thermal instrument junction box of the thermal power plant is supported inside the corresponding installation station, the protective cover 2 is opened, and the wires of the thermal instrument of the thermal power plant are inserted into the interior of the box body 1, and then the insulation layer of the wire is stripped off with a wire stripper to expose the metal wire of an appropriate length, and then the corresponding wire is connected to the corresponding wiring terminal 3 according to the wiring diagram;

[0024] The fixing mechanism 6 includes a guide slide post 61, a connecting plate 62 and a top plate 63. The guide slide post 61 is respectively arranged on the upper and lower sides of the interior of the installation groove 5. The guide slide post 61 is respectively slidably connected with the sliding holes corresponding to the right end of the connecting plate 62. The end of the connecting plate 62 away from the center of the box body 1 is provided with a top plate 63. The top plate 63 is respectively slidably connected with the avoidance grooves adjacent to the horizontal. The fixing mechanism 6 also includes a mounting rod 65, an adjustment plate 66 and a limit groove 67. The mounting rod 65 is respectively arranged on the left and right sides of the front wall of the mounting groove 5. The middle part of the outer arc surface of the mounting rod 65 is rotatably connected with the adjustment plate 66 through a bearing. The lower end of the adjustment plate 66 is respectively connected to the horizontally adjacent The adjacent connecting plate 62 is in contact with one end close to the inner center of the box body 1, and the upper side of the rear end of the adjusting plate 66 is provided with a limiting groove 67. The fixing mechanism 6 also includes a mounting plate 68 and a limiting rod 69. The mounting plate 68 is slidably connected to the inner wall of the mounting groove 5. The left and right sides of the rear end of the mounting plate 68 are provided with limiting rods 69. The limiting rods 69 are respectively located inside the longitudinally adjacent limiting grooves 67. The fixing mechanism 6 also includes a spring 64. The spring 64 is respectively arranged between one end of the connecting plate 62 away from the inner center of the box body 1 and the inner wall of the mounting groove 5. The spring 64 is sleeved on the outside of the outer side of the guide slide column 61. Before use, the thermal instrument junction box of the thermal power plant is moved Go to the designated work location, insert the box body 1 into the corresponding installation position, and then rotate the adjustment device. The adjustment device drives the mounting plate 68 to move downward through the threaded connection, and the mounting plate 68 drives the limiting rod 69 to move downward. During the movement of the limiting rod 69, the limiting rod 69 slides inside the limiting groove 67 and rotates relative to the limiting groove 67, so that the limiting rod 69 drives the adjustment plate 66 to rotate toward the side away from the inner center of the base 1 through the limiting groove 67. When the adjustment plate 66 contacts the connecting plate 62 during the rotation, the connecting plate 62 is pushed by the adjustment plate 66 and starts to drive the top plate 63 along the guide slide column 61 away from the inner center of the base 1. The spring 64 contracts, so that the top plate 63 extends out from the inside of the installation groove 5 and finally contacts the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant in the corresponding installation station. By cooperating with the adjustment plate 66 and the connecting plate 62, the position of the top plate 63 can be adjusted, so that the top plate 63 extends out from the inside of the installation groove 5 and finally contacts the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant in the corresponding installation station, replacing the traditional method of installing the thermal instrument junction box of the thermal power plant through bolt connection, which is simple to operate and improves work efficiency.

[0025] Wherein: it also includes a screw rod 7 and an adjusting wheel 8. The screw rod 7 is rotatably connected to the middle part of the top wall of the mounting groove 5 through a bearing. The screw rod 7 is threadedly connected to a threaded hole arranged in the middle part of the upper end of the mounting plate 68. The adjusting wheel 8 is arranged at the upper end of the screw rod 7. The adjusting wheel 8 is rotated, and the adjusting wheel 8 drives the screw rod 7 to rotate. During the rotation process, the screw rod 7 drives the mounting plate 68 to move downward through the threaded connection, and the mounting plate 68 drives the limit rod 69 to move downward, thereby adjusting the position of the limit rod 69.

[0026] Among them: it also includes a wire hole protection cover 9, which is respectively arranged in the wire holes opened on the front side of the outer surface of the box body 1. The wire hole protection cover 9 can protect the wires or cables from being worn or damaged when entering the box body 1.

[0027] Among them: it also includes a rubber pad 4, which is arranged at the front end of the box body 1, and the front end of the rubber pad 4 contacts the rear end of the protective cover 2. The rubber pad 4 provides a certain sealing performance to prevent external moisture, dust or other impurities from entering the interior of the junction box.

[0028] The working principle of a thermal instrument junction box for a thermal power plant provided by the utility model is as follows: before use, the thermal instrument junction box of the thermal power plant is moved to a designated work location, the box body 1 is inserted into the corresponding installation position, and then the adjusting wheel 8 is rotated, the adjusting wheel 8 drives the screw 7 to rotate, and the screw 7 drives the mounting plate 68 to move downward through the threaded connection during the rotation process, and the mounting plate 68 drives the limiting rod 69 to move downward, and during the movement of the limiting rod 69, the limiting rod 69 slides inside the limiting groove 67 and rotates relative to the limiting groove 67, so that the limiting rod 69 drives the adjusting plate 66 to rotate toward the side away from the inner center of the base 1 through the limiting groove 67, and when the adjusting plate 66 rotates during the rotation process, the adjusting plate 66 is rotated to the side away from the inner center of the base 1. When the connecting plate 62 contacts with the connecting plate 62 during the process, the connecting plate 62 is pushed by the adjusting plate 66 and starts to drive the top plate 63 to move along the guide slide column 61 to the side away from the inner center of the base 1. The spring 64 contracts, causing the top plate 63 to extend from the inside of the mounting groove 5, and finally contacts with the inner wall of the installation station, thereby supporting the thermal instrument junction box of the thermal power plant inside the corresponding installation station, and then open the protective cover 2, pass the wires of the thermal instruments of the thermal power plant through the wire hole protective cover 9 and extend to the inside of the box body 1, and then use wire strippers to strip the insulation layer of the wire to expose the metal wire of appropriate length, and then connect the corresponding wires to the corresponding terminal 3 according to the wiring diagram, and finally close the protective cover 2 again.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A thermal instrument junction box for a thermal power plant, characterized in that: It comprises a box body (1) and a fixing mechanism (6); Box body (1): The front end thereof is connected to a protective cover (2) by means of fastening screws; a mounting groove (5) is arranged at the rear side of the interior of the box body (1); avoidance grooves are arranged at the middle of the left and right walls of the mounting groove (5); and a wiring terminal (3) is arranged at the middle of the rear wall of the box body (1); The fixing mechanism (6) comprises a guide slide post (61), a connecting plate (62) and a top plate (63), wherein the guide slide post (61) is respectively arranged at the upper and lower sides of the interior of the mounting groove (5), the guide slide post (61) is respectively slidably connected with the corresponding sliding holes arranged at the right end of the connecting plate (62), and a top plate (63) is arranged at one end of the connecting plate (62) away from the center of the box body (1), and the top plate (63) is respectively slidably connected with the avoidance grooves adjacent to each other in the transverse direction.

2. A thermal instrument junction box for a thermal power plant according to claim 1, characterized in that: The fixing mechanism (6) further comprises a mounting rod (65), an adjustment plate (66) and a limiting groove (67); the mounting rod (65) is respectively arranged on the left and right sides of the front wall of the mounting groove (5); the middle part of the outer arc surface of the mounting rod (65) is rotatably connected to the adjustment plate (66) via a bearing; the lower end of the adjustment plate (66) is respectively in contact with one end of the laterally adjacent connecting plate (62) close to the inner center of the box body (1); and the upper side of the rear end of the adjustment plate (66) is provided with a limiting groove (67).

3. A thermal instrument junction box for a thermal power plant according to claim 2, characterized in that: The fixing mechanism (6) further comprises a mounting plate (68) and a limiting rod (69), wherein the mounting plate (68) is slidably connected to the inner wall of the mounting groove (5), and limiting rods (69) are arranged on both left and right sides of the rear end of the mounting plate (68), and the limiting rods (69) are respectively located inside the limiting grooves (67) adjacent to each other in the longitudinal direction.

4. A thermal instrument junction box for a thermal power plant according to claim 1, characterized in that: The fixing mechanism (6) further comprises a spring (64), wherein the spring (64) is respectively arranged between an end of the connecting plate (62) away from the inner center of the box body (1) and the inner wall of the mounting groove (5), and the spring (64) is sleeved on the outside of the outer side of the guide slide column (61).

5. A thermal instrument junction box for a thermal power plant according to claim 3, characterized in that: It also includes a screw rod (7) and an adjusting wheel (8), wherein the screw rod (7) is rotatably connected to the middle part of the top wall of the mounting groove (5) through a bearing, the screw rod (7) is threadedly connected to a threaded hole arranged in the middle part of the upper end of the mounting plate (68), and the adjusting wheel (8) is arranged at the upper end of the screw rod (7).

6. A thermal instrument junction box for a thermal power plant according to claim 1, characterized in that: It also comprises a wire hole protection cover (9), wherein the wire hole protection cover (9) is respectively arranged in a wire hole opened on the front side of the outer surface of the box body (1).

7. A thermal instrument junction box for a thermal power plant according to claim 1, characterized in that: It also comprises a rubber pad (4), which is arranged at the front end of the box body (1), and the front end of the rubber pad (4) is in contact with the rear end of the protective cover (2).

Images