Cold region prefabricated cable trench module capable of being quickly spliced

Abstract

The utility model relates to the technical field of cable trenches, in particular to a cold region prefabricated cable trench module capable of being quickly spliced, which comprises not less than two U-shaped cable trench plates, not less than two cover plates and not less than two sealing and locking mechanisms, mounting grooves are formed in the tops of the U-shaped cable trench plates, and the sealing and locking mechanisms are arranged in the mounting grooves. The inner side of the U-shaped cable trench plate is provided with two clamping grooves which are communicated with the mounting groove, the cover plate is placed in the mounting groove, and asbestos heat preservation interlayers are mounted in the U-shaped cable trench plate and the cover plate; the sealing locking mechanism can effectively block the seam between the two adjacent U-shaped cable trench plates, so that the probability that external underground water permeates to the inner sides of the U-shaped cable trench plates through the seam between the two adjacent U-shaped cable trench plates can be reduced, and the inner sides of the U-shaped cable trench plates are always kept in a dry and heat preservation state.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable trench technical field, especially a cold region prefabricated cable trench module of quick splicing. BACKGROUND

[0002] The prefabricated cable trench module is a modern cable laying solution, and is particularly suitable for indoor and outdoor cable trenches of power plants, hydropower plants, converter stations, transformer substations and large buildings. In cold regions, the prefabricated cable trench module is usually provided with a thermal insulation layer inside to improve the cold resistance and thermal insulation performance of the cable trench as a whole.

[0003] A cable trench with a modular assembly structure is disclosed in a Chinese patent (authorized publication number CN217824186U). The T-shaped mounting plate and the limiting mechanism are provided to enable the T-shaped mounting plate and the fixing plate to be fixed on the side plate through the limiting mechanism, making installation convenient and fast, and enabling the T-shaped mounting plate to be fixed on the side plate without a large number of bolts. The prefabricated bottom plate and the side plate can be produced modularly and installed in an assembled manner, which can shorten the construction period, reduce the on-site work intensity, strictly control the quality of the finished cable trench, and have higher practicality.

[0004] According to the above-mentioned reference patent, the bottom plate and the side plate are locked together by clamping. Since the cable trench is usually arranged under the ground surface outdoors, the above-mentioned device does not have a sealing structure, and underground water can easily penetrate into the cable trench through the gap between the bottom plate and the side plate. This not only increases the humidity inside the cable trench, but also reduces the thermal insulation performance inside the cable trench, making it difficult to ensure that the cable trench can operate normally in cold regions.

[0005] Therefore, a cold region prefabricated cable trench module with quick splicing is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a cold region prefabricated cable trench module with quick splicing to solve the above-mentioned problems, and improve the poor sealing effect of the existing cold region prefabricated cable trench module with quick splicing.

[0007] The utility model realizes the above-mentioned purpose through the following technical scheme, a cold region prefabricated cable trench module with quick splicing, comprising: a plurality of U-shaped cable trench plates, a plurality of cover plates and a plurality of sealing locking mechanisms, the top of the U-shaped cable trench plate is provided with a mounting groove, the inner side of the U-shaped cable trench plate is provided with a plurality of clamping grooves that are in communication with the mounting groove, the cover plate is placed in the mounting groove, and the U-shaped cable trench plate and the cover plate are both provided with an asbestos thermal insulation interlayer.

[0008] Preferably, the sealing and locking mechanism comprises a U-shaped sealing plate fixedly connected to the inner side of the U-shaped cable trench plate, the lower surface of the U-shaped sealing plate is fixedly connected with two U-shaped sealing strips respectively clamped with the adjacent two clamping grooves, and the U-shaped sealing plate arranged in the mounting groove and the U-shaped sealing strip arranged in the mounting groove are both stepped.

[0009] Preferably, the lower surface of the U-shaped sealing plate is provided with a rubber sealing gasket, the joint of the adjacent two U-shaped cable trench plates is attached to the rubber sealing gasket, and the rubber sealing gasket is arranged between the two U-shaped sealing strips.

[0010] Preferably, the two ends of the U-shaped sealing plate are fixedly connected with mounting sleeves, the inner side of the mounting sleeve is inserted with a first threaded column fixedly connected with the U-shaped cable trench plate, and the surface of the first threaded column is threadedly connected with a first nut in contact with the mounting sleeve.

[0011] Preferably, the cross-sectional shape of the first threaded column arranged on the inner side of the U-shaped cable trench plate is inverted T-shaped.

[0012] Preferably, the inner side of the U-shaped sealing plate is provided with a cable rack, the inner side of the cable rack is inserted with two second threaded columns fixedly connected with the U-shaped sealing plate, and the surface of the second threaded column is threadedly connected with a second nut threadedly connected with the second threaded column.

[0013] Preferably, the number of the cable racks is two, and the two cable racks are symmetrically distributed on both sides of the center point of the U-shaped sealing plate.

[0014] Preferably, the surface of the cover plate is sleeved with a rubber sealing ring, and the adjacent rubber sealing rings, mounting grooves and U-shaped sealing plates are in contact with the rubber sealing ring.

[0015] The beneficial effects of the utility model are:

[0016] 1. The sealing and locking mechanism can effectively block the joint between the adjacent two U-shaped cable trench plates, which not only can prevent the underground water from penetrating into the inner side of the U-shaped cable trench plate through the gap between the adjacent two U-shaped cable trench plates, so that the inner side of the U-shaped cable trench plate always maintains a dry and heat preservation state, but also can firmly lock the adjacent two U-shaped cable trench plates together, effectively reducing the probability of deviation or misplacement of a U-shaped cable trench plate, and improving the structural strength of the whole cable trench.

[0017] 2、The design of fixing and installing the cable frame on the U-shaped sealing plate can uniformly press the U-shaped sealing plate by the weight of the cable arranged on the cable frame, so that the U-shaped sealing strip is more closely clamped with the clamping groove, the sealing effect of the two adjacent U-shaped cable trench plates is improved, compared with the design of directly fixing on the U-shaped cable trench plate, the two adjacent U-shaped cable trench plates can be uniformly pressed, the probability of sinking of a U-shaped cable trench plate is effectively reduced, and the U-shaped cable trench plate runs more stably. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the overall structure in the utility model;

[0019] Figure 2 It is an explosion schematic view of the overall structure in the utility model;

[0020] Figure 3 It is a sectional view schematic view of the overall structure in the utility model;

[0021] Figure 4 It is a structural schematic view of the sealing locking mechanism in the utility model.

[0022] In the drawing: 100, U-shaped cable trench plate; 110, mounting groove; 120, clamping groove; 200, cover plate; 300, asbestos thermal insulation interlayer; 400, sealing locking mechanism; 410, U-shaped sealing plate; 420, U-shaped sealing strip; 430, rubber sealing gasket; 440, mounting sleeve; 450, first threaded column; 460, first nut; 470, cable frame; 480, second threaded column; 490, second nut; 500, rubber sealing ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] In the specific implementation: such as Figures 1-4As shown in the figure, a prefabricated cable trench module for cold regions that can be quickly spliced comprises: a plurality of U-shaped cable trench plates 100, a plurality of cover plates 200, and a plurality of sealing locking mechanisms 400, the top of the U-shaped cable trench plate 100 is provided with a mounting groove 110, the inner side of the U-shaped cable trench plate 100 is provided with two clamping grooves 120 that are in communication with the mounting groove 110, the cover plate 200 is placed inside the mounting groove 110, and the inside of the U-shaped cable trench plate 100 and the cover plate 200 is provided with an asbestos thermal insulation layer 300; the surface of the cover plate 200 is provided with a rubber sealing ring 500, the adjacent rubber sealing ring 500, the mounting groove 110, and the U-shaped sealing plate 410 are in contact with the rubber sealing ring 500, the rubber sealing ring 500 can not only seal the gap between the two adjacent cover plates 200, but also seal the gap between the mounting groove 110, the U-shaped sealing plate 410, and the adjacent cover plate 200, thereby preventing external moisture from penetrating into the inside of the U-shaped cable trench plate 100 from top to bottom.

[0025] As shown in Figure 2 , Figure 3 and Figure 4 , the sealing locking mechanism 400 comprises a U-shaped sealing plate 410 fixedly connected to the inner side of the U-shaped cable trench plate 100, the lower surface of the U-shaped sealing plate 410 is fixedly connected with two U-shaped sealing strips 420 that are respectively clamped with the two adjacent clamping grooves 120, the U-shaped sealing plate 410 arranged inside the mounting groove 110 and the U-shaped sealing strip 420 arranged inside the mounting groove 110 are both step-shaped; the lower surface of the U-shaped sealing plate 410 is provided with a rubber sealing gasket 430, the joint between the two adjacent U-shaped cable trench plates 100 is in contact with the rubber sealing gasket 430, and the rubber sealing gasket 430 is arranged between the two U-shaped sealing strips 420, which can increase the sealing effect of the joint of the U-shaped cable trench plate 100; the two ends of the U-shaped sealing plate 410 are fixedly connected with mounting sleeves 440, the inner side of the mounting sleeve 440 is inserted with a first threaded column 450 fixedly connected with the U-shaped cable trench plate 100, and the surface of the first threaded column 450 is threadedly connected with a first nut 460 in contact with the mounting sleeve 440, which can firmly lock the U-shaped sealing plate 410 inside the U-shaped cable trench plate 100; the cross-sectional shape of the first threaded column 450 arranged inside the U-shaped cable trench plate 100 is inverted T-shaped, which can increase the stability of the operation of the first threaded column 450 and more stably lock the U-shaped sealing plate 410 inside the U-shaped cable trench plate 100.

[0026] As shown in Figure 2 , Figure 3 and Figure 4As shown, the inner side of the U-shaped sealing plate 410 is provided with a cable rack 470, the inner side of the cable rack 470 is inserted with two second threaded columns 480 which are both fixedly connected with the U-shaped sealing plate 410, the surface of the second threaded column 480 is threadedly connected with a second nut 490 which is threadedly connected with the second threaded column 480, and the cable rack 470 is fixedly installed on the U-shaped sealing plate 410. This design can uniformly press the U-shaped sealing plate 410 by using the weight of the cables arranged on the cable rack 470, so that the U-shaped sealing strip 420 is more tightly clamped with the clamping groove 120, thereby improving the sealing effect on the adjacent two U-shaped cable trench plates 100. Compared with the design of directly fixing the cable rack 470 on the U-shaped cable trench plate 100, this design can also uniformly press the adjacent two U-shaped cable trench plates 100, effectively reducing the probability of sinking of a certain U-shaped cable trench plate 100, and making the U-shaped cable trench plate 100 run more stably. The number of the cable rack 470 is two, and the two cable racks 470 are symmetrically distributed on both sides of the center point of the U-shaped sealing plate 410. This not only can increase the number of cables arranged inside the cable trench, thereby improving the effective utilization rate of space, but also can make the U-shaped sealing plate 410 more balanced in stress.

[0027] In use, the staff first digs a corresponding specification groove on the ground surface, then arranges a corresponding number of U-shaped cable trench plates 100 in the inside of the groove in a head-to-tail manner, then aligns the U-shaped sealing strip 420 and the mounting sleeve 440 on the U-shaped sealing plate 410 with the clamping groove 120 and the first threaded column 450 respectively, then inserts the U-shaped sealing strip 420 into the clamping groove 120 and sets the mounting sleeve 440 on the surface of the first threaded column 450, and finally the staff only needs to rotate the first nut 460 to the surface of the first threaded column 450 and tightly adhere the mounting sleeve 440 together, so that the rubber sealing gasket 430 seals the gap between the adjacent two U-shaped cable trench plates 100. This not only can prevent the outside groundwater from penetrating into the inside of the U-shaped cable trench plate 100 through the gap between the adjacent two U-shaped cable trench plates 100, so that the inside of the U-shaped cable trench plate 100 always remains dry and heat-insulating, but also can firmly lock the adjacent two U-shaped cable trench plates 100 together, effectively reducing the probability of deviation or misplacement of a certain U-shaped cable trench plate 100, thereby improving the structural strength of the entire cable trench.

[0028] It should be noted that the asbestos heat-insulating interlayer 300 and the cable rack 470 in the above description are both relatively mature devices in existing technology, and the specific model can be selected according to actual needs, which will not be repeated here.

[0029] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A precast cold weather cable trench module that can be quickly assembled, characterized by, The utility model relates to a kind of U-shaped cable trench plate and cover plate, including: A plurality of U-shaped cable trench plates (100) and a plurality of cover plates (200), the top of the U-shaped cable trench plate (100) is provided with a mounting groove (110), the inner side of the U-shaped cable trench plate (100) is provided with two clamping grooves (120) which are in communication with the mounting groove (110), and the cover plate (200) is placed inside the mounting groove (110). A rock wool insulation layer (300) is installed inside the U-shaped cable trench plate (100) and the cover plate (200). Further comprising a plurality of sealing locking mechanisms (400), the sealing locking mechanism (400) comprises a U-shaped sealing plate (410) fixedly connected to the inside of the U-shaped cable trench plate (100), the lower surface of the U-shaped sealing plate (410) is fixedly connected with two U-shaped sealing strips (420) respectively clamped with adjacent two clamping grooves (120), and the U-shaped sealing plate (410) arranged inside the mounting groove (110) and the U-shaped sealing strip (420) arranged inside the mounting groove (110) are both stepped.

2. The pre-fabricated trench module for cold regions that can be quickly assembled according to claim 1, characterized in that: The lower surface of the U-shaped sealing plate (410) is provided with a rubber sealing gasket (430), the joint of the adjacent two U-shaped cable trench plates (100) is attached to the rubber sealing gasket (430), and the rubber sealing gasket (430) is arranged between the two U-shaped sealing strips (420).

3. The pre-fabricated trench module for cold regions that can be quickly assembled according to claim 1, characterized in that: Both ends of the U-shaped sealing plate (410) are fixedly connected with a mounting sleeve (440), the inner side of the mounting sleeve (440) is inserted with a first threaded column (450) fixedly connected with the U-shaped cable trench plate (100), and the surface of the first threaded column (450) is threadedly connected with a first nut (460) in contact with the mounting sleeve (440).

4. The pre-fabricated trench module for cold regions that can be quickly assembled according to claim 3, characterized in that: The cross-sectional shape of the first threaded column (450) arranged inside the U-shaped cable trench plate (100) is inverted T-shaped.

5. The pre-fabricated trench module for cold regions that can be quickly assembled according to claim 1, characterized in that: The inner side of the U-shaped sealing plate (410) is provided with a cable rack (470), the inner side of the cable rack (470) is inserted with two second threaded columns (480) fixedly connected with the U-shaped sealing plate (410), and the surface of the second threaded column (480) is threadedly connected with a second nut (490) threadedly connected with the second threaded column (480).

6. A pre-fabricated trench module for cold regions that can be quickly assembled according to claim 5, characterized in that: The number of the cable rack (470) is two, and the two cable racks (470) are symmetrically distributed on both sides of the center point of the U-shaped sealing plate (410).

7. The pre-fabricated trench module for cold regions that can be quickly assembled according to claim 1, characterized in that: The surface of the cover plate (200) is provided with a rubber sealing ring (500), and the adjacent rubber sealing ring (500), mounting groove (110) and U-shaped sealing plate (410) are in contact with the rubber sealing ring (500).

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