Centralized DTU terminal box structure

Abstract

The utility model relates to a centralized DTU terminal box body structure, which comprises a main box and a box door, a plurality of guide rods which are arranged at intervals along the height direction of the main box are symmetrically arranged on two mutually parallel inner side walls of the main box, any two opposite guide rods are respectively provided with a machine box, two U-shaped sliding sleeves are arranged on the bottom surface of each machine box, and the two U-shaped sliding sleeves are respectively provided with a sliding block. The two sliding sleeves are respectively inserted into the outer sides of the two guide rods; limiting blocks in one-to-one correspondence with one row of guide rods are arranged on the outer side wall of the main box, limiting columns penetrate through the limiting blocks and perpendicularly penetrate through the side wall of the main box, limiting grooves allowing the limiting columns to be inserted are formed in the side wall of the sliding sleeve, and the limiting grooves extend in the length direction of the sliding sleeve; the box door is hinged to the main box and used for closing a box opening of the main box. According to the utility model, the machine boxes are used as installation carriers of components, and each machine box corresponds to a single module, so that partition installation is realized; when maintenance is needed, the corresponding machine box can be directly pulled out for independent operation, interference of limited space in the main box is avoided, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model patent relates to the field of distribution network automation terminal technology, and in particular to a centralized DTU terminal box structure. Background Art

[0002] In the construction of distribution automation system, the station terminal DTU is installed in the switch station, distribution room, ring network cabinet, box-type substation and other places of the distribution network feeder loop. It has the functions of telesignaling, telemetering and remote control. Its function is to collect the operating information of the primary equipment of the station, such as current, voltage, power factor, etc., and upload it to the distribution automation master station through the communication network. At the same time, it executes the remote control operation commands issued by the master station.

[0003] Most of the existing DTU terminal cabinets have their components mixed and installed without partitions, and are fixed to the cabinet body, making replacement and maintenance inconvenient. Utility Model Content

[0004] In order to improve the problem that most of the components of the existing DTU terminal cabinets are installed in a mixed manner without partitions and fixed to the cabinet body, making it inconvenient to replace and repair, the utility model patent provides a centralized DTU terminal box structure.

[0005] The utility model patent provides a centralized DTU terminal box structure adopts the following technical solutions:

[0006] A centralized DTU terminal box structure, comprising a main box and a box door, wherein two inner side walls of the main box are parallel to each other and symmetrically provided with a plurality of guide rods arranged at intervals along the height direction thereof, and any two opposite guide rods are provided with a machine box, and two U-shaped sliding sleeves are provided on the bottom surface of the machine box, and the two sliding sleeves are respectively plugged into the outer sides of the two guide rods;

[0007] The outer side wall of the main box is provided with a limit block corresponding to one of the rows of guide rods, and the limit block is penetrated by a limit column, and the limit column vertically passes through the side wall of the main box, and the side wall of the sliding sleeve is provided with a limit groove for the limit column to be inserted, and the limit groove extends along the length direction of the sliding sleeve;

[0008] The box door is hinged on the main box and is used to close the box opening of the main box.

[0009] By adopting the above technical solution, components are installed in each machine box, and each machine box can correspond to a single module to achieve partitioned installation. At the same time, since the machine box serves as an installation carrier, when maintenance or overhaul is required, the operator can pull the machine box directly out of the main box to perform the operation separately, which is convenient and quick; the plug-in cooperation of the limit column and the limit groove limits the movable distance of the machine box to prevent the machine box from falling out of the main box during normal pulling, thereby increasing the safety of the terminal box.

[0010] Optionally, a plurality of balls are embedded on the guide rod and arranged at intervals along the length direction thereof, and the sliding sleeve is supported on the balls.

[0011] By adopting the above technical solution, the balls realize rolling friction between the sleeve and the guide rod, which helps to reduce the friction resistance encountered by the sleeve when it moves.

[0012] Optionally, one end of the limiting column located outside the main box is vertically connected to a first support rod, both ends of the first support rod are vertically provided with second support rods, and the outer side wall of the main box is provided with sleeves for respectively inserting two of the second support rods.

[0013] By adopting the above technical solution, the plug-in cooperation between the second support rod and the sleeve plays a guiding role in the movement of the first support rod.

[0014] Optionally, the outer side wall of the main box is provided with a shell for covering the first support rod, and the shell is U-shaped with an opening toward the main box, and when the first support rod abuts against the vertical inner wall of the shell, the limiting column is separated from the limiting groove.

[0015] By adopting the above technical solution, the distance between the first support rod and the inner wall of the shell limits the maximum stroke of the first support rod, thereby reducing the possibility of the limit column and the main box directly falling off.

[0016] Optionally, each of the machine boxes is provided with a plurality of first heat dissipation holes, a second heat dissipation hole is provided on a side wall of the main box connected to the outer shell, and a fan is installed in the outer shell.

[0017] By adopting the above technical solution, the first heat dissipation hole and the second heat dissipation hole enable the machine box and the main box to be connected to the outer shell. The airflow drawn by the fan takes away the heat dissipated by the components inside the box, so that the components are maintained within a certain operating temperature range, thereby extending the service life of the components.

[0018] Optionally, the shell has a cabinet door hinged on the end surface on the same side as the main box opening.

[0019] By adopting the above technical solution, the cabinet door plays a role in protecting the internal components of the main box.

[0020] In summary, this utility model patent includes at least one of the following beneficial technical effects:

[0021] 1. The machine box is used as the installation carrier of components. Each machine box corresponds to a single module to achieve partition installation. When maintenance is required, the corresponding machine box can be directly pulled out for separate operation, avoiding the interference of the limited space inside the main box. At the same time, there is no need for the operator to check one by one. During the maintenance process, the replaceable machine box can be placed in the main box to continue working, which improves the maintenance efficiency and is convenient and quick;

[0022] 2. The first heat dissipation hole allows the heat inside the box to be directly transferred out, and then the airflow drawn by the fan is taken away by the second heat dissipation hole. Compared with the heat transfer from the box, the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model patent.

[0024] Figure 2 It is a front view of an embodiment of the utility model.

[0025] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 It is a schematic diagram of the structure of the limit column used in the embodiment of the utility model patent.

[0027] Explanation of the reference numerals: 1. main box; 11. box door; 12. guide rod; 121. ball bearing; 13. machine box; 131. sliding sleeve; 14. limiting block; 15. limiting column; 16. limiting groove; 21. first support rod; 22. second support rod; 23. sleeve; 3. outer shell; 31. first heat dissipation hole; 32. second heat dissipation hole; 33. fan; 34. cabinet door. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The utility model patent is further described in detail.

[0029] The utility model patent embodiment discloses a centralized DTU terminal box structure. Figure 1 The centralized DTU terminal box structure includes a main box 1 and a box door 11. The box door 11 is hinged on the main box 1 and is used to close the box opening of the main box 1.

[0030] like Figure 2 and Figure 3 The two inner side walls of the main box 1 are parallel to each other and are symmetrically provided with a plurality of guide rods 12 arranged at intervals along the height direction thereof. A machine box 13 is provided on any two opposite guide rods 12. The machine box 13 is located above the guide rods 12, and two U-shaped sliding sleeves 131 are provided on the bottom surface of the machine box 13. The two sliding sleeves 131 are respectively inserted into the outer sides of the two guide rods 12. A plurality of balls 121 arranged at intervals along the length direction thereof are embedded on the guide rods 12. The balls 121 can roll freely, and the sliding sleeves 131 are supported on the balls 121.

[0031] like Figure 4The outer wall of the main box 1 is provided with a limit block 14 corresponding to one of the rows of guide rods 12. The limit block 14 is penetrated by a limit column 15. The limit column 15 vertically passes through the side wall of the main box 1. The side wall of the sliding sleeve 131 is provided with a limit groove 16 for the limit column 15 to be inserted. The limit groove 16 extends along the length direction of the sliding sleeve 131. The end of the limit column 15 located outside the main box 1 is vertically connected to the first support rod 21. The length of the first support rod 21 is the same as the width of the main box 1. The two ends of the first support rod 21 are vertically provided with a second support rod 22. The second support rod 22 faces the outer wall of the main box 1. The outer wall of the main box 1 is provided with a sleeve 23 for the two second support rods 22 to be inserted respectively. The outer wall of the box is provided with a shell 3 for covering the first support rod 21, and the shell 3 is U-shaped, with an opening facing the main box 1. When the first support rod 21 abuts against the vertical inner wall of the shell 3, the limit column 15 is separated from the limit groove 16. On the one hand, the housing 3 limits the moving distance of the first support rod 21 , and on the other hand, it also keeps the outer side of the main box 1 flat, which is convenient for subsequent discharge between terminal boxes.

[0032] like Figure 1 The housing 3 is hinged with a cabinet door 34 on the end face on the same side as the box opening of the main box 1. The cabinet door 34 closes the side opening of the housing 3 located at the box door 11, reducing the entry of foreign matter therein.

[0033] like Figure 1 and Figure 4 , each box 13 is provided with a plurality of first heat dissipation holes 31, a second heat dissipation hole 32 is provided on the side wall connecting the main box 1 and the outer shell 3, and a fan 33 is installed in the outer shell 3. After the fan 33 is started, the heat emitted by the components in the box 13 during operation is conducted out through the first heat dissipation holes 31 and the second heat dissipation holes 32, thereby improving the working environment of the components.

[0034] The implementation principle of the embodiment of the utility model patent is: when repairing or overhauling, the operator opens the cabinet door 34, moves the first support rod 21 outward, drives the limit column 15 to move out of the limit groove 16, and then pulls the required machine box 13 out of the main box 1, which is convenient and quick.

[0035] The above are all preferred embodiments of the present utility model patent, and are not intended to limit the protection scope of the present utility model patent. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model patent should be covered within the protection scope of the present utility model patent.

Claims

1. A centralized DTU terminal box structure, characterized by: The invention comprises a main box (1) and a box door (11); two inner side walls of the main box (1) are parallel to each other and are symmetrically provided with a plurality of guide rods (12) arranged at intervals along the height direction thereof; any two opposite guide rods (12) are provided with a machine box (13); the bottom surface of the machine box (13) is provided with two U-shaped sliding sleeves (131), and the two sliding sleeves (131) are respectively plugged into the outer sides of the two guide rods (12); The outer wall of the main box (1) is provided with a limit block (14) corresponding to one of the rows of guide rods (12); a limit column (15) is passed through the limit block (14); the limit column (15) vertically passes through the side wall of the main box (1); the side wall of the sliding sleeve (131) is provided with a limit groove (16) for the limit column (15) to be inserted; the limit groove (16) extends along the length direction of the sliding sleeve (131); The box door (11) is hinged on the main box (1) and is used to close the box opening of the main box (1).

2. According to claim 1, a centralized DTU terminal box structure is characterized in that: The guide rod (12) is embedded with a plurality of balls (121) arranged at intervals along the length direction thereof, and the sliding sleeve (131) is supported on the balls (121).

3. According to claim 1, a centralized DTU terminal box structure is characterized in that: One end of the limiting column (15) located outside the main box (1) is vertically connected to a first support rod (21), and second support rods (22) are vertically arranged at both ends of the first support rod (21). The outer wall of the main box (1) is provided with sleeves (23) for the two second support rods (22) to be inserted respectively.

4. A centralized DTU terminal box structure according to claim 3, characterized in that: The outer wall of the main box (1) is provided with an outer shell (3) for covering the first support rod (21), and the outer shell (3) is U-shaped with an opening facing the main box (1), and when the first support rod (21) abuts against the vertical inner wall of the outer shell (3), the limiting column (15) is separated from the limiting groove (16).

5. A centralized DTU terminal box structure according to claim 4, characterized in that: A plurality of first heat dissipation holes (31) are provided on each of the machine boxes (13), a second heat dissipation hole (32) is provided on the side wall connecting the main box (1) and the outer shell (3), and a fan (33) is installed in the outer shell (3).

6. A centralized DTU terminal box structure according to claim 5, characterized in that: The outer shell (3) is hingedly connected with a cabinet door (34) on the end surface on the same side as the box opening of the main box (1).

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