External fireproof accessory for PLC control cabinet of hydropower station

Abstract

The utility model discloses an external fireproof accessory for a PLC (Programmable Logic Controller) control cabinet of a hydropower station, which belongs to the technical field of PLC control cabinet protection and comprises a connecting pipe, a positioning mechanism, a pushing mechanism, a plurality of sliding rods and a connecting pipe, one end of the connecting pipe is communicated with the interior of the PLC control cabinet, and the connecting pipe is fixedly connected to the PLC control cabinet; the positioning mechanism comprises a first fixed seat and a first movable seat which are detachably connected with each other, and a second fixed seat and a second movable seat which are detachably connected with each other; the pushing mechanism comprises a pushing plate, a displacement pipe, a positioning plate and a plugging structure, according to the utility model, the air drying of the fireproof mud caused by long-time exposure can be prevented, the fireproof effect of the fireproof mud is further ensured, and the fireproof mud can be quickly filled in the connecting pipe and located on the outer surface of the wire, so that the convenience and efficiency of fireproof mud filling are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of PLC control cabinet protection technology, especially relates to a kind of external fireproof fittings for the PLC control cabinet of hydropower station. BACKGROUND

[0002] The PLC control cabinet of hydropower station is a device for controlling and monitoring the power generation equipment of hydropower station, which will use accessories for fire protection during use. In the existing PLC control cabinet of hydropower station, the inlet and outlet positions of wires are sealed with fire clay to prevent flames and high-temperature gases from entering the interior of the PLC control cabinet through these openings. However, the fire clay is directly exposed to the external environment after filling and will be retired over time. The fire clay is prone to dry cracking or even falling off due to drying, which not only weakens the original excellent fireproof performance of the fire clay but also adversely affects the overall protection efficiency of the PLC control cabinet, thereby threatening the safety and stability of the operation of the hydropower station.

[0003] In addition, the fire clay needs to be kneaded into a proper shape when filling, and then filled into the wire inlet and outlet. Finally, a scraper or spatula is used to scrape the surface of the fire clay flat. The filling process is complicated, and improper operation will affect the filling efficiency and effect of the fire clay. UTILITY MODEL CONTENTS

[0004] The utility model provides an external fireproof fitting for the PLC control cabinet of hydropower station to overcome the defects of the prior art, which can ensure the fireproof effect of the fire clay and improve the filling efficiency of the fire clay.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An external fireproof fitting for the PLC control cabinet of hydropower station includes:

[0007] A connecting pipe, one end of which is connected to the interior of the PLC control cabinet, is fixedly connected to the PLC control cabinet;

[0008] A positioning mechanism, which includes a first positioning pipe and a second positioning pipe connected to the connecting pipe, includes a first fixed seat and a first movable seat that are detachably connected to each other, and a second fixed seat and a second movable seat that are detachably connected to each other. The connecting pipe, the first fixed seat, and the second fixed seat are fixedly connected in sequence;

[0009] The pushing mechanism comprises a pushing plate, a displacement tube, a positioning plate and a blocking structure for sequentially penetrating the conductor in the axial direction, the pushing plate is fixedly connected with one end of the displacement tube, the positioning plate is attached to the other end of the displacement tube, the blocking structure is inserted on the positioning plate, the pushing plate and the displacement tube are respectively slidably connected with the first positioning tube and the second positioning tube, the outer wall of the pushing plate is attached to the inner wall of the first positioning tube, and the inner wall of the second positioning tube is attached to the outer wall of the displacement tube.

[0010] A plurality of sliding rods are fixedly connected to one end of the second positioning tube, and the positioning plate is slidably connected to the plurality of sliding rods.

[0011] Further, one side of the first fixed seat is hingedly connected with one side of the first movable seat, the other side of the first fixed seat is detachably connected with the other side of the first movable seat, one side of the second fixed seat is hingedly connected with one side of the second movable seat, and the other side of the second fixed seat is detachably connected with the other side of the second movable seat.

[0012] Further, the positioning mechanism comprises two limiting seats provided with limiting grooves in the length direction and a limiting frame for enclosing the two limiting seats, one limiting seat is fixedly connected to the other side of the first fixed seat and the second fixed seat, the other limiting seat is fixedly connected to the other side of the first movable seat and the second movable seat, and the inner side walls of the limiting frame are both provided with limiting rods for clamping the limiting grooves in the length direction.

[0013] Further, the second fixed seat is provided with a sliding groove, and the side surface of the displacement tube is provided with a sliding convex strip for slidably connecting with the sliding groove.

[0014] Further, one end of the positioning plate is uniformly fixedly connected with a plurality of pushing rods in the circumferential direction, and the pushing rods are fixedly connected with the pushing plate after penetrating through the second fixed seat or the second movable seat.

[0015] Further, the second positioning tube is uniformly fixedly connected with a plurality of sliding rods in the circumferential direction.

[0016] Further, one end of each of the sliding rods is threadedly connected with a fastening nut after penetrating through the positioning plate.

[0017] Further, the blocking structure comprises a blocking plate, one end of the blocking plate is uniformly provided with four grooves in the circumferential direction, a connecting rod is fixedly connected between the inner walls of the two ends of each of the grooves, the connecting rod is sleeved with a penetrating seat and two springs, the two springs are respectively located at the two ends of the penetrating seat, and the two sides of the penetrating seat are slidably attached to the inner walls of the two sides of the groove; and a penetrating groove for penetrating the conductor is formed in the middle of the blocking plate.

[0018] Further, the two ends of the spring are respectively fixedly connected with one end of the penetrating seat and one end of the groove.

[0019] Further, the outer surface of the connecting pipe is fixedly provided with an installation plate for fixed connection with the PLC control cabinet, and a fixed pipe is fixedly connected to the end of the connecting pipe away from the first fixed seat.

[0020] The utility model discloses beneficial effect lies in:

[0021] 1, release first movable seat and second movable seat respectively with the fixed relation of first fixed seat and second fixed seat, can pass through connecting pipe, push -on plate, displacement pipe, positioning plate and plugging structure with the wire, and the fireclay is filled in the one end of first fixed seat, and then first movable seat and second movable seat are fixedly connected respectively on first fixed seat and second fixed seat, can make the fireclay fill in first fixed seat and connecting pipe, prevent the fireclay from drying because of long -term exposure, and further ensure the fireproof effect of fireclay.

[0022] 2, push positioning plate, and positioning plate slides on the outer surface of slide rod, and simultaneously drive push -on plate to extrude fireclay, make fireclay fill in connecting pipe rapidly and be located the outer surface of wire, thereby improve the convenience of fireclay filling, and the efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0023] In the following, the utility model will be described in more detail based on the embodiments and with reference to the drawings.

[0024] Among them:

[0025] Figure 1 The structure schematic diagram of the utility model is shown;

[0026] Figure 2 The structure schematic diagram of the utility model is shown;

[0027] Figure 3 The structure schematic diagram of the utility model is shown;

[0028] Figure 4 The structure schematic diagram of the utility model is shown;

[0029] Figure 5 The structure schematic diagram of the utility model is shown;

[0030] In the drawings, same parts use same reference signs. The drawings do not follow actual scale.

[0031] Reference signs:

[0032] 1. Connecting pipe; 2. Mounting plate; 3. Fixing pipe; 4. Positioning mechanism; 41. First fixed seat; 42. Second fixed seat; 43. First movable seat; 44. Second movable seat; 45. Limiting seat; 46. Limiting frame; 47. Limiting rod; 5. Sliding rod; 6. Pushing mechanism; 61. Displacement pipe; 62. Pushing plate; 63. Sliding convex strip; 64. Positioning plate; 65. Pushing rod; 66. Sealing structure; 661. Sealing plate; 662. Groove; 663. Connecting rod; 664. Spring; 665. Through socket; 666. Through groove; 7. Fastening nut; 8. Through hole. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] This utility model provides an external fireproof accessory for the PLC control cabinet of a hydropower station, such as... Figures 1-4 As shown, it includes:

[0035] Connecting pipe 1, one end of connecting pipe 1 is connected to the inside of the PLC control cabinet, and connecting pipe 1 is fixedly connected to the PLC control cabinet;

[0036] Positioning mechanism 4 includes a first positioning tube and a second positioning tube that are connected to the connecting tube 1. The first positioning tube includes a first fixed seat 41 and a first movable seat 43 that are detachably connected to each other. The second positioning tube includes a second fixed seat 42 and a second movable seat 44 that are detachably connected to each other. The connecting tube 1, the first fixed seat 41 and the second fixed seat 42 are fixedly connected in sequence.

[0037] The pushing mechanism 6 includes a pushing plate 62, a displacement tube 61, a positioning plate 64, and a sealing structure 66 for sequentially threading a wire along the axial direction. The pushing plate 62 is fixedly connected to one end of the displacement tube 61, the positioning plate 64 is attached to the other end of the displacement tube 61, and the sealing structure 66 is inserted into the positioning plate 64. The pushing plate 62 and the displacement tube 61 are slidably connected to the first positioning tube and the second positioning tube, respectively. The outer wall of the pushing plate 62 is attached to the inner wall of the first positioning tube, and the inner wall of the second positioning tube is attached to the outer wall of the displacement tube 61.

[0038] Multiple slide rods 5 are fixedly connected to one end of the second positioning tube, and a positioning plate 64 is slidably connected to the multiple slide rods 5.

[0039] Specifically, one side of the first fixed seat 41 is hinged to one side of the first movable seat 43, the other side of the first fixed seat 41 is detachably connected to the other side of the first movable seat 43, one side of the second fixed seat 42 is hinged to one side of the second movable seat 44, and the other side of the second fixed seat 42 is detachably connected to the other side of the second movable seat 44; the positioning mechanism 4 comprises two limiting seats 45 provided with limiting grooves in the length direction and a limiting frame 46 for enclosing the two limiting seats 45, one limiting seat 45 is fixedly connected to the other side of the first fixed seat 41 and the second fixed seat 42, and the other limiting seat 45 is fixedly connected to the other side of the first movable seat 43 and the second movable seat 44; the limiting frame 46 is provided with limiting rods 47 on the inner side walls in the length direction for clamping with the limiting grooves, so as to limit the displacement pipe 61 and avoid the rotation of the displacement pipe 61 relative to the second fixed seat 42; the second fixed seat 42 is provided with a sliding groove, and the side surface of the displacement pipe 61 is provided with a sliding protrusion 63 for sliding connection with the sliding groove; one end of the positioning plate 64 is uniformly fixedly connected with a plurality of pushing rods 65 in the circumferential direction, and the pushing rods 65 are fixedly connected with the pushing plate 62 after penetrating through the second fixed seat 42 or the second movable seat 44.

[0040] The outer surface of the connecting pipe 1 is fixedly connected with the mounting plate 2 for fixed connection with the PLC control cabinet, and the end of the connecting pipe 1 away from the first fixed seat 41 is fixedly connected with the fixed pipe 3. The end of the connecting pipe 1 is provided with a through hole 8.

[0041] It can be understood that when the pushing plate 62 is slidingly connected in the first fixed seat 41, the limiting rod 47 is slidingly connected in the limiting groove of the second fixed seat 42, and the pushing rod 65 is fixedly connected with the pushing plate 62, at this time, the positioning plate 64 is pushed, and the positioning plate 64 slides on the outer surface of the sliding rod 5, and simultaneously drives the fixedly connected pushing rod 65 to move, the pushing rod 65 pushes the pushing plate 62 to slide in the first fixed seat 41, so that the pushing plate 62 extrudes the fireproof mud, and the fireproof mud is quickly filled in the connecting pipe 1 and the through hole 8, and located on the outer surface of the wire, so as to improve the fireproof effect of the PLC control cabinet by filling the fireproof mud.

[0042] It can also be understood that the fireproofing mortar is filled in one side of the first fixing base 41, then the displacement pipe 61 and the pushing plate 62 are slidably connected with the second fixing base 42 and the first fixing base 41 respectively, the wires are connected with the pushing mechanism 6 in penetration, the first movable base 43 and the second movable base 44 are pulled, one side of the first movable base 43 and the second movable base 44 is rotated on the first fixing base 41 and the second fixing base 42 respectively, so that the first movable base 43 and the second movable base 44 are overturned, the two limiting bases 45 are adhered together, and then the two limiting rods 47 of the limiting frame 46 are inserted into the two limiting bases 45 in the length direction, so that the limiting frame 46 frames the two limiting bases 45, and the first movable base 43 and the second movable base 44 are fixed on the first fixing base 41 and the second fixing base 42 respectively.

[0043] In one embodiment, the second positioning pipe is fixedly connected with a plurality of slide rods 5 uniformly in the circumferential direction.

[0044] In one embodiment, one end of all the slide rods 5 is threadedly connected with a fastening nut 7 after penetrating the positioning plate 64.

[0045] In one embodiment, as shown in the figure, Figure 5 the plugging structure 66 comprises a plugging plate 661, one end of the plugging plate 661 is uniformly provided with four grooves 662 in the circumferential direction, connecting rods 663 are fixedly connected between the inner walls at two ends of all the grooves 662, penetrating seats 665 and two springs 664 are sleeved on the connecting rods 663, the two springs 664 are located at two ends of the penetrating seat 665 respectively, and the two sides of the penetrating seat 665 are slidably adhered to the inner walls of the two sides of the groove 662 respectively; a through groove 666 for penetrating the wires is formed in the middle of the plugging plate 661.

[0046] The two ends of the spring 664 are fixedly connected with one end of the penetrating seat 665 and the inner wall of one end of the groove 662 respectively.

[0047] As can be seen from the above, the two ends of the spring 664 are fixedly connected with one end of the penetrating seat 665 and the inner wall of one end of the groove 662 respectively, so that the stability of the spring 664 is improved.

[0048] It should be noted that the diameter of the through groove 666 matches the diameter of the wire.

[0049] The working process of the utility model is as follows:

[0050] The connecting pipe 1 is inserted into the PLC control cabinet, the mounting plate 2 is tightly attached to the inner wall of the PLC control cabinet, and then the mounting plate 2 is fixed;

[0051] The wires are penetrated through the perforations 8, the fireproofing mortar is filled in one side of the first fixing base 41, then the displacement pipe 61 and the pushing plate 62 are inserted into the second fixing base 42 and the first fixing base 41 respectively, and the wires are connected with the pushing mechanism 6 in penetration;

[0052] Pulling the first movable seat 43 and the second movable seat 44, one side of the first movable seat 43 and the second movable seat 44 rotates on the first fixed seat 41 and the second fixed seat 42 respectively, so that the first movable seat 43 and the second movable seat 44 are turned over, the two limiting seats 45 are attached together, and then the two limiting rods 47 of the limiting frame 46 are inserted into the two limiting seats 45 from the length direction, so that the limiting frame 46 frames the two limiting seats 45;

[0053] After the pushing rod 65 is inserted through the second fixed seat 42, the pushing rod 65 is fixedly connected with the pushing plate 62, and the positioning plate 64 is slidingly connected on the outer surface of the sliding rod 5;

[0054] Pushing the positioning plate 64, the positioning plate 64 slides on the outer surface of the sliding rod 5, and the pushing rod 65 is moved, so that the pushing plate 62 slides in the first fixed seat 41, so that the pushing plate 62 extrudes the fireproof mortar, so that the fireproof mortar is quickly filled in the connecting pipe 1 and the perforation 8 and located on the outer surface of the wire;

[0055] Fixed through the fastening nut 7;

[0056] According to the need of the wire, the through slot 666 is opened, the wire is inserted through the through slot 666, and the insertion seat 665 is inserted in the positioning plate 64, so that the wire is clamped, so as to improve the sealing performance.

[0057] In the description of the utility model, it is understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0058] Although the utility model is described in the text with reference to specific embodiments, it should be understood that these examples are only examples of the principles and applications of the utility model. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the utility model defined in the appended claims. It should be understood that different dependent claims and features described in the text can be combined in ways different from the original claims. It should also be understood that the features described in conjunction with the separate embodiments can be used in other described embodiments.

Claims

1. An external fireproofing fitting for a PLC control cabinet of a hydropower station, characterized in that, The utility model relates to a kind of PLC control cabinet cable fixing device, including: Connecting pipe (1), one end of the connecting pipe (1) is communicated inside PLC control cabinet, the connecting pipe (1) is fixedly connected on PLC control cabinet; Positioning mechanism (4), the positioning mechanism (4) includes first positioning pipe and second positioning pipe communicated with the connecting pipe (1), the first positioning pipe includes first fixed seat (41) and first movable seat (43) detachably connected with each other, the second positioning pipe includes second fixed seat (42) and second movable seat (44) detachably connected with each other, the connecting pipe (1), the first fixed seat (41) and the second fixed seat (42) are sequentially fixedly connected; Pushing mechanism (6), the pushing mechanism (6) includes pushing plate (62) for sequentially penetrating wire along axial direction, displacement pipe (61), positioning plate (64) and plugging structure (66), the pushing plate (62) is fixedly connected with one end of the displacement pipe (61), the positioning plate (64) is attached to the other end of the displacement pipe (61), the plugging structure (66) is inserted on the positioning plate (64), the pushing plate (62) and the displacement pipe (61) are slidably connected with the first positioning pipe and the second positioning pipe respectively, the outer wall of the pushing plate (62) is attached to the inner wall of the first positioning pipe, the inner wall of the second positioning pipe is attached to the outer wall of the displacement pipe (61); Multiple slide bars (5), multiple the slide bars (5) are fixedly connected to one end of the second positioning pipe, and the positioning plate (64) is slidably connected on multiple the slide bars (5).

2. The external fireproof fitting for a PLC control cabinet of a hydropower station according to claim 1, characterized in that, One side of the first fixed seat (41) is hinged to one side of the first movable seat (43), the other side of the first fixed seat (41) is detachably connected to the other side of the first movable seat (43), one side of the second fixed seat (42) is hinged to one side of the second movable seat (44), and the other side of the second fixed seat (42) is detachably connected to the other side of the second movable seat (44).

3. The external fireproof fitting for a PLC control cabinet of a hydropower station according to claim 2, characterized in that, The positioning mechanism (4) includes two limit seats (45) provided with limit grooves along the length direction and a limit frame (46) for enclosing the two limit seats (45), one limit seat (45) is fixedly connected to the other side of the first fixed seat (41) and the second fixed seat (42), the other limit seat (45) is fixedly connected to the other side of the first movable seat (43) and the second movable seat (44), and the inner side walls of the limit frame (46) are both provided with limit rods (47) for clamping the limit grooves along the length direction.

4. The external fireproof fitting for a PLC control cabinet of a hydropower station according to claim 1, characterized in that, The second fixed seat (42) is provided with a sliding groove, and the side surface of the displacement pipe (61) is provided with a sliding protruding strip (63) for slidably connecting with the sliding groove.

5. The external fire protection fitting for a PLC control cabinet of a hydropower station according to claim 1, characterized in that, One end of the positioning plate (64) is uniformly fixedly connected with multiple pushing rods (65) along the circumference, and the pushing rods (65) are fixedly connected with the pushing plate (62) after penetrating through the second fixed seat (42) or the second movable seat (44).

6. The external fire protection fitting for a PLC control cabinet of a hydropower station according to claim 1, characterized in that, The second positioning pipe is uniformly fixedly connected with multiple slide bars (5) along the circumference.

7. The external fireproof fitting for a PLC control cabinet of a hydropower station according to claim 1 or 6, characterized in that, One end of all the slide rods (5) is threaded with a fastening nut (7) after penetrating the positioning plate (64).

8. The external fire protection fitting for a PLC control cabinet of a hydropower station according to claim 1, characterized in that, The blocking structure (66) comprises a blocking plate (661), four grooves (662) are uniformly arranged on one end of the blocking plate (661) in the circumferential direction, connecting rods (663) are fixedly connected between the inner walls of the two ends of all the grooves (662), penetrating sockets (665) and two springs (664) are sleeved on the connecting rods (663), the two springs (664) are respectively located at the two ends of the penetrating socket (665), and the two sides of the penetrating socket (665) are slidably attached to the inner walls of the two sides of the groove (662); a through groove (666) for penetrating a lead wire is formed in the middle of the blocking plate (661).

9. The external fire protection fitting for a PLC control cabinet of a hydropower station according to claim 8, characterized in that, The two ends of the spring (664) are fixedly connected with one end of the penetrating socket (665) and the inner wall of one end of the groove (662) respectively.

10. The external fire protection fitting for a PLC control cabinet of a hydropower station according to claim 1, characterized in that, The outer surface of the connecting pipe (1) is fixedly and penetratingly connected with a mounting plate (2) for fixed connection with a PLC control cabinet, one end of the connecting pipe (1) away from the first fixing seat (41) is fixedly connected with a fixing pipe (3), and one end of the connecting pipe (1) is provided with a through hole (8).

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