Direct-current power supply convenient for stable installation

Abstract

The utility model discloses a DC power supply convenient for stable installation, which belongs to the related technical field of DC power supplies, and comprises a DC power supply body, the top of the DC power supply body is fixedly connected with a boss, and the bottom of the boss is provided with a positioning hole. A first guide inclined plane extending to the root of the boss is arranged on one side of the positioning hole, a support is arranged on the outer side of the direct-current power source body, a first cross beam and a second cross beam are fixedly connected to the support from bottom to top, and guide rails of an L-shaped structure are symmetrically and fixedly connected to the top of the first cross beam; the bottom of the second cross beam is provided with a sleeve, the telescopic rod can be inserted into the inner side of the positioning hole through the elastic acting force of the spring, the outer diameter of the telescopic rod is matched with the inner diameter of the positioning hole, the installation stability of the direct-current power source body is guaranteed, and meanwhile installation of the direct-current power source body is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field related to direct current power supplies, and more specifically to a direct current power supply that is easy to install stably. Background Art

[0002] DC power supply cabinets are used in large, medium and small power plants and substations as DC power supplies for high-voltage switch boxes, relay protection, automatic control, emergency lighting, lighting and sound signals under normal operation and accident conditions. They can also be used in metallurgy, railways, mining, petrochemicals, postal and telecommunications high-rise buildings and computer networks. When used outdoors, the row of DC power supply cabinets are generally installed together on a bracket or on the wall. The cabinet body installed on the bracket generally requires the use of special connectors during installation, and then connected to the bracket. This connector is generally dedicated and cannot be adjusted. The installation method is restricted, and the heat dissipation effect of the cabinet is poor. If the row of cabinets is installed and used, there will be certain safety hazards. For this reason, we need to improve it.

[0003] An existing patent for a DC power supply cabinet, the patent authorization number is CN 217182686 U. It is easy to connect with the bracket outdoors and can be adjusted to meet the needs of different bracket beams. Secondly, it is easy to cool the inside of the cabinet.

[0004] However, the patent authorization number is CN 217182686 U, in which the fixed seat and the movable seat are respectively attached to both sides of the beam. After completion, the corresponding nut is screwed on the outside from the top of the bolt until the bottom of the nut is against the anti-slip pad on the outside of the sleeve. The cabinet can be stably and adaptably installed on the outside of the bracket. The connecting rod that slides and retracts inside the sleeve can be adjusted corresponding to the width of the beam. Since there are multiple connecting rods, it is necessary to adjust and fix the connecting rods one by one, which is cumbersome for the installation steps. In order to further improve the convenience of installation of the DC power supply, we propose a DC power supply that is easy to install stably to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a DC power supply that is easy and stable to install. It can use the elastic force of the spring to insert the telescopic rod into the inner side of the positioning hole. The outer diameter of the telescopic rod is adapted to the inner diameter of the positioning hole, thereby ensuring the stability of the installation of the DC power supply body and facilitating the installation of the DC power supply body.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A DC power supply that is easy to install stably, comprising a DC power supply body, a boss is fixedly connected to the top of the DC power supply body, a positioning hole is opened at the bottom of the boss, and a first guiding inclined surface extending to the root of the boss is arranged on one side of the positioning hole;

[0010] A bracket is arranged on the outer side of the DC power supply body, and a first crossbeam and a second crossbeam are fixedly connected to the bracket from bottom to top respectively;

[0011] A guide rail arranged in an L-shaped structure is symmetrically fixedly connected to the top of the first crossbeam;

[0012] A sleeve is installed at the bottom of the second crossbeam, and the bottom end of the sleeve is movably connected with a telescopic rod plugged into the positioning hole, and the outer diameter of the telescopic rod is adapted to the inner diameter of the positioning hole. A second guide slope parallel to the first guide slope is provided at the bottom end of the telescopic rod, and a ball is rotatably connected to the second guide slope. A stopper located on the inner side of the sleeve is integrally formed at the top end of the telescopic rod, and a spring is installed on the inner side of the sleeve, one end of the spring is connected to the stopper, and the other end of the spring is connected to the top wall of the inner cavity of the sleeve.

[0013] Furthermore, a protruding column is welded on the outer wall of the stopper, and the protruding column extends to the outside of the sleeve.

[0014] Furthermore, a waist hole which is gap-matched with the boss is provided in the axial position of the outer wall of the sleeve.

[0015] Furthermore, the DC power supply body is located between the two guide rails, and the inner facade of the guide rail is in contact with the outer facade of the DC power supply body.

[0016] Furthermore, a limiting portion in an annular structure is provided on the inner side of the bottom opening of the sleeve, and the inner diameter of the limiting portion is smaller than the outer diameter of the stopper.

[0017] Furthermore, the bottom end of the bracket is fixedly connected to a base, and the edge of the base is symmetrically provided with assembly holes.

[0018] Furthermore, the included angles between the first guiding inclined plane, the second guiding inclined plane and the horizontal plane of the bottom of the base are both 15°.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) In this solution, the DC power supply body is guided by a guide rail, and the first guide bevel cooperates with the second guide bevel, and the ball rolls against the first guide bevel, which can reduce the friction between the telescopic rod and the boss, reduce the wear of the telescopic rod and the boss, and extend the service life. The telescopic rod is gradually pressed into the inner side of the sleeve, and the spring is compressed and deformed by the block. When the telescopic rod corresponds to the positioning hole, the elastic force of the spring is used to insert the telescopic rod into the inner side of the positioning hole. The outer diameter of the telescopic rod is adapted to the inner diameter of the positioning hole, thereby ensuring the stability of the installation of the DC power supply body and facilitating the installation of the DC power supply body.

[0022] (2) In this solution, the stopper is pulled upward by the convex column, so that the telescopic rod is moved upward and stored inside the sleeve, and at the same time, the telescopic rod is disengaged from the positioning hole, so that the DC power supply body can be easily disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the boss structure of the utility model;

[0025] Figure 3 It is an enlarged schematic diagram of part A of the utility model;

[0026] Figure 4 It is a schematic side view of the sleeve of the utility model;

[0027] Figure 5 It is a schematic cross-sectional view of the sleeve AA part of the utility model.

[0028] Description of the numbers in the figure:

[0029] 1. DC power supply body; 2. Boss; 3. Positioning hole; 4. First guide slope; 5. Bracket; 6. First crossbeam; 7. Guide rail; 8. Second crossbeam; 9. Sleeve; 10. Telescopic rod; 11. Second guide slope; 12. Ball; 13. Spring; 14. Stopper; 15. Boss; 16. Waist hole; 17. Base. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0031] Example:

[0032] See also Figure 1-5 A DC power supply that is easy to install stably includes a DC power supply body 1, a boss 2 is fixedly connected to the top of the DC power supply body 1, a positioning hole 3 is opened at the bottom of the boss 2, and a first guiding inclined surface 4 extending to the root of the boss 2 is provided on one side of the positioning hole 3;

[0033] A bracket 5 is disposed outside the DC power supply body 1, and a first crossbeam 6 and a second crossbeam 8 are fixedly connected to the bracket 5 from bottom to top respectively;

[0034] A guide rail 7 arranged in an L-shaped structure is symmetrically fixedly connected to the top of the first crossbeam 6;

[0035] A sleeve 9 is installed at the bottom of the second crossbeam 8, and a telescopic rod 10 plugged and connected to the positioning hole 3 is movably connected to the bottom end of the sleeve 9, and the outer diameter of the telescopic rod 10 is adapted to the inner diameter of the positioning hole 3. A second guide slope 11 parallel to the first guide slope 4 is opened at the bottom end of the telescopic rod 10, and a ball 12 is rotatably connected to the second guide slope 11. A stopper 14 located on the inner side of the sleeve 9 is integrally formed at the top of the telescopic rod 10, and a spring 13 is installed on the inner side of the sleeve 9, one end of the spring 13 is connected to the stopper 14, and the other end of the spring 13 is connected to the top wall of the inner cavity of the sleeve 9;

[0036] It should be noted that, the DC power supply body 1 is manually held and placed between the guide rails 7, and the inner facade of the guide rails 7 is abutted against the outer facade of the root of the DC power supply body 1, and then the DC power supply body 1 is pushed to slide toward the telescopic rod 10. The first guide bevel 4 cooperates with the second guide bevel 11, and the ball 12 rolls against the first guide bevel 4, which can reduce the friction between the telescopic rod 10 and the boss 2, reduce the wear of the telescopic rod 10 and the boss 2, and extend the service life. The telescopic rod 10 is gradually pressed into the inner side of the sleeve 9, and the spring 13 is compressed and deformed by the block 14. When the telescopic rod 10 corresponds to the positioning hole 3, the elastic force of the spring 13 is used to insert the telescopic rod 10 into the inner side of the positioning hole 3. The outer diameter of the telescopic rod 10 is adapted to the inner diameter of the positioning hole 3, thereby ensuring the stability of the installation of the DC power supply body 1 and facilitating the installation of the DC power supply body 1.

[0037] like Figure 3 , Figure 4 , Figure 5 As shown, a protrusion 15 is welded to the outer wall of the stopper 14, and the protrusion 15 extends to the outside of the sleeve 9, and a waist hole 16 is opened in the axial position of the outer wall of the sleeve 9 to match the protrusion 15 with a clearance, and a limiting part with an annular structure is arranged on the inner side of the bottom opening of the sleeve 9, and the inner diameter of the limiting part is smaller than the outer diameter of the stopper 14;

[0038] It should be noted that, by using the boss 15 to pull the stopper 14 upward, the telescopic rod 10 is moved upward and stored inside the sleeve 9, and at the same time, the telescopic rod 10 is separated from the positioning hole 3, so that the DC power supply body 1 is conveniently disassembled.

[0039] like Figure 1 , the DC power supply body 1 is located between the two guide rails 7, and the inner facade of the guide rail 7 is in contact with the outer facade of the DC power supply body 1;

[0040] It should be noted that, by using the guide rail 7 to guide the DC power supply body 1 , the DC power supply body 1 can slide stably, which is conducive to accurate docking between the positioning hole 3 and the telescopic rod 10 .

[0041] like Figure 1 As shown, the bottom end of the bracket 5 is fixedly connected to the base 17, and the edge of the base 17 is symmetrically provided with assembly holes;

[0042] It should be noted that the bracket 5 can be conveniently installed and fixed in a designated area by utilizing the assembly holes provided on the edge of the base 17 .

[0043] The included angles between the first guiding slope 4 and the second guiding slope 11 and the horizontal plane at the bottom of the base 17 are both 15°.

[0044] During use: the DC power supply body 1 is manually held and placed between the guide rails 7, and the inner facade of the guide rails 7 is abutted against the outer facade of the root of the DC power supply body 1, and then the DC power supply body 1 is pushed to slide toward the telescopic rod 10, and the first guide bevel 4 cooperates with the second guide bevel 11, and the ball 12 rolls against the first guide bevel 4, which can reduce the friction between the telescopic rod 10 and the boss 2, and reduce the wear of the telescopic rod 10 and the boss 2, thereby extending the service life. The telescopic rod 10 is gradually pressed into the inner side of the sleeve 9, and the spring 13 is compressed and deformed by the block 14. When the telescopic rod 10 corresponds to the positioning hole 3, the elastic force of the spring 13 is used to insert the telescopic rod 10 into the inner side of the positioning hole 3, and the outer diameter of the telescopic rod 10 is adapted to the inner diameter of the positioning hole 3, so as to ensure the stability of the installation of the DC power supply body 1.

[0045] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A DC power supply that is easy to install stably, comprising a DC power supply body (1), characterized in that: A boss (2) is fixedly connected to the top of the DC power supply body (1), a positioning hole (3) is provided at the bottom of the boss (2), and a first guiding inclined surface (4) extending to the root of the boss (2) is provided on one side of the positioning hole (3); A bracket (5) is arranged on the outer side of the DC power supply body (1), and a first crossbeam (6) and a second crossbeam (8) are fixedly connected to the bracket (5) from bottom to top respectively; A guide rail (7) arranged in an L-shaped structure is symmetrically and fixedly connected to the top of the first crossbeam (6); A sleeve (9) is installed at the bottom of the second crossbeam (8), and a telescopic rod (10) plugged into the positioning hole (3) is movably connected to the bottom end of the sleeve (9), and the outer diameter of the telescopic rod (10) is matched with the inner diameter of the positioning hole (3). A second guiding inclined surface (11) parallel to the first guiding inclined surface (4) is provided at the bottom end of the telescopic rod (10), and a ball (12) is rotatably connected to the second guiding inclined surface (11). A stopper (14) located inside the sleeve (9) is integrally formed at the top end of the telescopic rod (10), and a spring (13) is installed inside the sleeve (9), one end of the spring (13) is connected to the stopper (14), and the other end of the spring (13) is connected to the top wall of the inner cavity of the sleeve (9).

2. A DC power supply that is easy to install stably according to claim 1, characterized in that: A convex column (15) is welded to the outer wall of the stopper (14), and the convex column (15) extends to the outside of the sleeve (9).

3. A DC power supply that is easy to install stably according to claim 2, characterized in that: A waist hole (16) which is clearance-matched with the protruding column (15) is provided at an axial position on the outer wall of the sleeve (9).

4. A DC power supply that is easy to install stably according to claim 1, characterized in that: The DC power supply body (1) is located between the two guide rails (7), and the inner facade of the guide rail (7) is in contact with the outer facade of the DC power supply body (1).

5. A DC power supply that is easy to install stably according to claim 1, characterized in that: A limiting portion in an annular structure is provided on the inner side of the bottom opening of the sleeve (9), and the inner diameter of the limiting portion is smaller than the outer diameter of the stopper (14).

6. A DC power supply that is easy to install stably according to claim 1, characterized in that: The bottom end of the bracket (5) is fixedly connected to a base (17), and the edge of the base (17) is symmetrically provided with assembly holes.

7. A DC power supply that is easy to install stably according to claim 6, characterized in that: The included angles between the first guiding inclined surface (4) and the second guiding inclined surface (11) and the horizontal plane at the bottom of the base (17) are both 15°.

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