DC power line convenient to extend and expand

Abstract

The utility model relates to the field of DC power lines, and discloses a DC power line convenient to extend and expand, which comprises a connector, the right side of the connector is fixedly connected with a DC power line, the right side of the DC power line is fixedly connected with a plurality of groups of female heads, the left side of the other group of female heads is fixedly connected with a male head, and the left side of the male head is in plug-in connection with the right side of the female head. And a combination assembly is arranged on the left side of the connector and comprises a limiting block, the multiple female heads are inserted into the left side of the connector, and circular ring clamping grooves are formed in the outer walls of the right ends of the female heads. According to the utility model, the joint is plugged with the plurality of groups of female heads, the female heads are provided with the circular ring clamping grooves, and the plurality of groups of limiting blocks slide into the circular ring clamping grooves to limit the plurality of groups of female heads, so that when the extension is needed, the female heads can be conveniently pulled out and then connected with the male head connected with the left side of another group of female heads; therefore, the connection length can be obviously increased, and effective extension and expansion are realized.

Description

Technical Field

[0001] The utility model relates to the field of DC power lines, in particular to a DC power line which is convenient for extension and expansion. Background Art

[0002] In today's era of widespread use of electronic devices, DC power cables, as an important medium for power transmission, play an indispensable role. However, traditional DC power cables often have many limitations during use.

[0003] With the diversification of electronic devices and the continuous expansion of application scenarios, higher requirements are placed on the distance and flexibility of power supply. Some existing one-point DC power cables are usually fixedly connected by one power cable and multiple power cables. When in use, although multiple connecting cables can connect multiple devices, there is a need to extend the power line in some special occasions. For example, in large industrial production sites, the equipment layout is scattered, and the fixed-length power cable cannot reach the farther equipment. The shorter power cable may cause the equipment to be unable to be placed in the ideal position, or even unable to be connected, thus affecting normal use. Therefore, a DC power cable that is easy to extend and expand is proposed to solve the above problems. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a DC power cord that is easy to extend and expand, aiming to improve the problem in the prior art that "the DC power cord configured when the product leaves the factory is fixed in length and the length cannot be adjusted, resulting in failure to connect and affecting use."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a DC power cord that is easy to extend and expand, including a connector, the right side of the connector is fixedly connected to the DC power cord, the right side of the DC power cord is fixedly connected to a female head and multiple groups are provided, the left side of another group of female heads is fixedly connected to a male head, the left side of the male head is plugged into the right side of the female head, a combination component is provided on the left side of the connector, the combination component includes a limit block, multiple groups of female heads are plugged into the left side of the connector, a circular groove is opened on the outer wall of the right end of the female head, and a circular sleeve is rotatably connected to the outer wall of the connector.

[0006] As a further description of the above technical solution:

[0007] An anti-dropout component is arranged on the left side of the male head, and the anti-dropout component comprises a clamping block, a sliding block is fixedly connected to the right side of the clamping block, and a bottom end of the left side of the clamping block is arranged as an inclined surface.

[0008] As a further description of the above technical solution:

[0009] The circular sleeve is elastically connected to the joint through a torsion spring, one end of the torsion spring is fixedly connected to the inner wall of the circular sleeve, and the other end of the torsion spring is fixedly connected to the outer wall of the joint. A guide groove is provided on the left side of the circular sleeve, and a guide rod is slidably connected to the inner wall of the guide groove.

[0010] As a further description of the above technical solution:

[0011] The left side of the guide rod is fixedly connected with a guide block, and the limit block is fixedly connected to the left bottom end of the guide block.

[0012] As a further description of the above technical solution:

[0013] The top end of the joint is fixedly connected with a fixing frame near the left side of the round sleeve, and the guide block is slidably connected to the inner wall of the fixing frame.

[0014] As a further description of the above technical solution:

[0015] The limiting block is arranged in a semicircular arc shape, and the limiting block slides on the inner wall of the circular groove.

[0016] As a further description of the above technical solution:

[0017] The top end of the male head is fixedly connected with a positioning frame, and the sliding block is slidably connected to the inner wall of the positioning frame.

[0018] As a further description of the above technical solution:

[0019] The slider is elastically connected to the male head through a spring, one end of the spring is fixedly connected to the bottom end of the slider, and the other end of the spring is fixedly connected to the top end of the male head.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the connector is plugged into multiple groups of female heads, and circular grooves are provided on the female heads, so that multiple groups of limit blocks can be slid into the circular grooves to limit the multiple groups of female heads. When extension is required, the female head can be conveniently pulled out and then connected to the male head connected to the left side of another group of female heads, thereby significantly increasing the length of the connection and achieving effective extension and expansion.

[0022] 2. In the utility model, a clamping block is arranged on the left side of the male head, and the clamping block is made to slide into the circular clamping groove in cooperation with a spring, so that when the female head and the male head are connected, stability is provided to prevent the male head and the female head from being pulled or accidentally disconnected, thereby increasing the stability and reliability of the power connection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the positioning frame in the utility model;

[0025] Figure 3 It is a schematic cross-sectional diagram of the three-dimensional structure of the female head and the connector being separated and the three-dimensional structure of the fixing frame in the utility model;

[0026] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the circular sleeve in the utility model;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the guide rod and the guide groove in the utility model.

[0028] Legend:

[0029] 1. DC power cord; 2. connector; 3. female connector; 4. male connector; 21. round sleeve; 22. limit block; 23. guide block; 24. fixing frame; 25. guide rod; 26. torsion spring; 27. guide groove; 31. circular groove; 32. block; 33. spring; 34. positioning frame; 35. slider. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: a DC power cord that is easy to extend and expand, including a connector 2 that can divide a DC power cord 1 into multiple parts, the right side of the connector 2 is fixedly connected with the DC power cord 1, the right side of the DC power cord 1 is fixedly connected with an interface on the DC power cord 1, which is usually used to receive and connect the female head 3 of the male head 4 and is provided with multiple groups, the left side of another group of female heads 3 is fixedly connected with another interface on the DC power cord 1, which is used to insert and connect the male head 4 of the female head 3, the left side of the male head 4 is plugged with the right side of the female head 3, and a combination component is provided on the left side of the connector 2, the combination component includes a limit block 22 that slides into a circular groove 31 to limit the female head 3, multiple groups of female heads 3 are plugged into the left side of the connector 2, and the outer wall of the right end of the female head 3 is provided with a circular groove 31 for the limit block 22 and the block 32 to slide into the limit, and the outer wall of the connector 2 is rotatably connected with a circular sleeve 21 that provides a support guide groove 27 and drives the guide groove 27 to move and squeeze the guide rod 25 so that the guide rod 25 moves.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The left side of the male head 4 is provided with an anti-slip assembly, which includes a block 32 that can slide into the circular groove 31 to limit the female head 3. The right side of the block 32 is fixedly connected with a slider 35 that supports and drives the block 32 to move. The left bottom end of the block 32 is set as an inclined surface. The left bottom end of the block 32 is set as an inclined surface, so that when the female head 3 and the male head 4 are plugged in, the inclined surface of the block 32 can be directly squeezed to drive the slider 35 to move upward to stretch the spring 33, so that the reverse force of the stretched spring 33 drives the slider 35 and the block 32 to reset, so that the block 32 slides into the circular groove 31 to limit the female head 3 to prevent the male head 4 from being pulled or accidentally disconnected from the female head 3, thereby increasing the stability and reliability of the power connection.

[0033] Reference Figure 3 , Figure 4 and Figure 5 The round sleeve 21 is elastically connected to the joint 2 by a torsion spring 26, one end of the torsion spring 26 is fixedly connected to the inner wall of the round sleeve 21, and the other end of the torsion spring 26 is fixedly connected to the outer wall of the joint 2. The round sleeve 21 is rotated to squeeze the torsion spring 26 and drive the guide groove 27 to rotate and push the guide rod 25 to move outward, driving the guide block 23 and the limit block 22 to move, so that multiple groups of female heads 3 can be easily pulled out and connected to the male head 4 for extension. At the same time, the reverse force of the torsion spring 26 being squeezed can drive the limit block 22 to quickly reset, and the limit installation can be quickly performed during connection. A guide groove 27 set in an arc shape is provided on the left side of the round sleeve 21, and the guide groove 27 set in an arc shape can be used to push the guide rod 25 when the guide groove 27 rotates to move the guide rod 25 outward.

[0034] Furthermore, the inner wall of the guide groove 27 is slidably connected to a guide rod 25 for driving the guide block 23 to move, and the left side of the guide rod 25 is fixedly connected to the guide block 23 for driving the limit block 22 to move, and the limit block 22 is fixedly connected to the left bottom end of the guide block 23. The top of the joint 2 is fixedly connected to a fixed frame 24 near the left side of the circular sleeve 21 for providing support and positioning the guide block 23, and the guide block 23 is slidably connected to the inner wall of the fixed frame 24, and the limit block 22 is set to a semicircular arc shape. By setting the limit block 22 to a semicircular arc shape, the contact area with the circular groove 31 can be increased, thereby increasing stability, and the limit block 22 slides on the inner wall of the circular groove 31.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The top of the male connector 4 is fixedly connected with a positioning frame 34 that supports the slider 35. The slider 35 is slidably connected to the inner wall of the positioning frame 34. The slider 35 and the male connector 4 are elastically connected by a spring 33. One end of the spring 33 is fixedly connected to the bottom end of the slider 35, and the other end of the spring 33 is fixedly connected to the top of the male connector 4. When the female connector 3 and the male connector 4 are plugged in, the female connector 3 squeezes the inclined surface of the block 32, so that the block 32 moves outward to drive the slider 35 to move the stretch spring 33. After the female connector 3 and the male connector 4 are connected, the reverse force of the spring 33 being squeezed can drive the slider 35 and the block 32 to reset, so that the block 32 slides into the annular groove 31 to limit the direction of the female connector 3 moving outward, thereby preventing the male connector 4 from being pulled or accidentally disconnected from the female connector 3, thereby increasing the stability and reliability of the power connection.

[0036] Working principle: When the DC power cord 1 is in normal use, the DC power cord 1 on the right side of the connector 2 is responsible for transmitting power. When more than one connection is required, multiple sets of female connectors 3 are connected by plugging into the left side of the connector 2.

[0037] During the connection process, the circular sleeve 21 is rotated, and the circular sleeve 21 squeezes the torsion spring 26. The circular sleeve 21 drives the guide groove 27 opened on the left side thereof to rotate accordingly, pushing the guide rod 25 to move outward, driving the guide block 23 and the semi-circular arc-shaped limit block 22 to move and slide out of the inner wall of the circular groove 31, thereby facilitating the removal of multiple groups of female heads 3. The circular groove 31 opened on the outer wall of the right end of the female head 3 provides a limiting space for the limit block 22. When connected, the reverse force of the torsion spring 26 being squeezed drives the limit block 22 to quickly reset and slide into the circular groove 31, thereby realizing rapid limit installation.

[0038] When extension is required, the connected female connector 3 is unplugged, and then connected to the male connector 4 on the left side of another group of female connectors 3. During the plugging process of the male connector 4 and the female connector 3, the female connector 3 squeezes the inclined surface at the bottom left end of the card block 32, driving the slider 35 to move upward to stretch the spring 33. When the female connector 3 and the male connector 4 are connected in place, the reverse force of the stretched spring 33 drives the slider 35 and the card block 32 to reset, and the card block 32 slides into the circular card groove 31 to limit the female connector 3 to prevent the male connector 4 from being pulled or accidentally disconnected from the female connector 3, thereby increasing the stability and reliability of the power connection. Through the synergistic effect of the above-mentioned components, the DC power cord 1 is divided into multiple parts, which is convenient for connection and extension, while ensuring the stability and reliability of the connection.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A DC power cord that is easy to extend and expand, comprising a connector (2), characterized in that: The right side of the connector (2) is fixedly connected to a DC power line (1), the right side of the DC power line (1) is fixedly connected to a female connector (3) and multiple groups are provided, the left side of another group of female connectors (3) is fixedly connected to a male connector (4), the left side of the male connector (4) is plugged into the right side of the female connector (3), a combination component is provided on the left side of the connector (2), the combination component comprises a limit block (22), multiple groups of female connectors (3) are plugged into the left side of the connector (2), a circular groove (31) is provided on the outer wall of the right end of the female connector (3), and a circular sleeve (21) is rotatably connected to the outer wall of the connector (2).

2. A DC power cord that is easy to extend and expand according to claim 1, characterized in that: An anti-slip assembly is arranged on the left side of the male head (4), the anti-slip assembly comprises a clamping block (32), a sliding block (35) is fixedly connected to the right side of the clamping block (32), and the left bottom end of the clamping block (32) is arranged as an inclined surface.

3. The DC power cord that is easy to extend and expand according to claim 1, characterized in that: The circular sleeve (21) and the joint (2) are elastically connected via a torsion spring (26), one end of the torsion spring (26) is fixedly connected to the inner wall of the circular sleeve (21), and the other end of the torsion spring (26) is fixedly connected to the outer wall of the joint (2). A guide groove (27) is provided on the left side of the circular sleeve (21), and a guide rod (25) is slidably connected to the inner wall of the guide groove (27).

4. The DC power cord that is easy to extend and expand according to claim 3, characterized in that: The left side of the guide rod (25) is fixedly connected with a guide block (23), and the limit block (22) is fixedly connected to the left bottom end of the guide block (23).

5. The DC power cord that is easy to extend and expand according to claim 4, characterized in that: A fixing frame (24) is fixedly connected to the top end of the joint (2) near the left side of the circular sleeve (21), and the guide block (23) is slidably connected to the inner wall of the fixing frame (24).

6. The DC power cord that is easy to extend and expand according to claim 1, characterized in that: The limiting block (22) is configured in a semicircular arc shape, and the limiting block (22) slides on the inner wall of the annular groove (31).

7. The DC power cord that is easy to extend and expand according to claim 2, characterized in that: The top end of the male head (4) is fixedly connected to a positioning frame (34), and the sliding block (35) is slidably connected to the inner wall of the positioning frame (34).

8. The DC power cord that is easy to extend and expand according to claim 2, characterized in that: The slider (35) is elastically connected to the male head (4) via a spring (33), one end of the spring (33) is fixedly connected to the bottom end of the slider (35), and the other end of the spring (33) is fixedly connected to the top end of the male head (4).

Images