Safety pressing pop-up plug special for railway maintenance

Abstract

The utility model discloses a special safe pressing pop-up plug for railway maintenance, which comprises a shell, a metal insertion sheet, a fixed column, two sliding insulation sleeves, first springs, a button and an insulation sleeve clamping assembly, the two sliding insulation sleeves are telescopically and slidably mounted at the bottom of the shell, and the top of each sliding insulation sleeve is fixedly provided with the corresponding first spring. The upper end of the first spring is fixed to the top of the shell inner cavity. The sliding insulation sleeve is longitudinally provided with an opening for installing the metal insertion piece, the metal insertion piece is installed in the longitudinal opening of the sliding insulation sleeve and is in sliding fit with the sliding insulation sleeve, the upper end of the metal insertion piece is fixedly connected with the fixing column, and the other end of the fixing column is fixed to the top of an inner cavity of the shell; an insulation sleeve clamping assembly capable of clamping and fixing the insulation sleeve when the insulation sleeve is pressed into the shell is arranged in the shell, and a button for clamping and loosening the insulation sleeve clamping assembly through pressing is arranged on the side wall of the shell; according to the utility model, the convenience and safety of unplugging the plug can be effectively improved, and the plug is suitable for further popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of power connection equipment, in particular to a safety push-to-pop-up plug specially used for railway maintenance. Background Art

[0002] Plugs are common power connection devices in railway maintenance operations. During daily maintenance and overhaul, maintenance equipment often needs to be powered by plugging into sockets. The working environment in the railway maintenance field is complex and changeable, and equipment is frequently moved. Common plugs are generally two-prong or three-prong, and are fully inserted into the socket through metal inserts. The socket provides clamping force to fix the plug.

[0003] In actual maintenance operations, especially when using mobile power strips, it is often difficult to unplug the plug. Since the power strip is easy to move, the operator usually needs one hand to help stabilize the power strip and the other hand to unplug the plug. This operation method increases the difficulty of the operation. In addition, if the plug is plugged into the wall socket, it is still possible to unplug it with one hand, but there will be another problem. If the plug is not completely unplugged, the plug blades will be exposed to the air, which is very likely to cause arcing and cause electric shock. The work in the field of railway maintenance is complicated, and safety issues are particularly important. In response to the above two problems, a safety push-pop-up plug specially designed for railway maintenance is proposed. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a safety push-pop-up plug specifically for railway maintenance, which solves the problem in the prior art of being inconvenient to unplug the plug with one hand and posing a safety hazard.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A safety push-to-pop plug specifically designed for railway maintenance includes a housing, a metal insert, a fixing post, a sliding insulating sleeve, a first spring, a button, and an insulating sleeve clamping assembly. Two sliding insulating sleeves are telescopically and slidably mounted on the bottom of the housing. The tops of the sliding insulating sleeves are each fixed with a first spring, the upper end of which is fixed to the top of the inner cavity of the housing.

[0007] The sliding insulating sleeve has a longitudinal opening for installing a metal insert. The metal insert is installed in the longitudinal opening of the sliding insulating sleeve and slides with the sliding insulating sleeve. The upper end of the metal insert is fixedly connected to the fixing post, and the other end of the fixing post is fixed to the top of the inner cavity of the housing;

[0008] An insulating sleeve clamping assembly is provided inside the shell and can clamp and fix the insulating sleeve when the insulating sleeve is pressed into the shell. A button for releasing the clamping of the insulating sleeve clamping assembly by pressing is provided on the side wall of the shell.

[0009] As a possible implementation manner, further, the bottom of the housing is provided with an opening for avoiding the sliding insulating sleeve, and the sliding insulating sleeve and the opening of the bottom of the housing are clearance-fitted.

[0010] As a possible implementation manner, further, a wedge-shaped block for engaging with the insulating sleeve clamping assembly is provided at the upper end of the side wall of the sliding insulating sleeve, and the inclined surface of the wedge-shaped block is provided upward.

[0011] As a possible embodiment, further, the insulating sleeve clamping assembly includes a fixed clip, a movable clip and a second spring, one end of the fixed clip is horizontally fixed to the side wall of the inner cavity of the shell, the fixed clip and the movable clip are arranged horizontally opposite to each other, and an extension plate is provided on the side wall of the fixed clip facing the movable clip;

[0012] A first card block matching plate and a top plate are respectively provided at both ends of the side wall of the movable buckle, the first card block matching plate and the top plate both facing the fixed buckle, and the first card block matching plate facing the fixed connection side of the fixed buckle and the shell, a second spring for pushing the movable buckle to move horizontally is fixed on the side wall of the first card block matching plate away from the top plate, the other end of the second spring is fixed to the side wall of the inner cavity of the shell, and the button on the side wall of the shell is fixedly connected to the top plate through a connecting rod, for pushing the movable buckle to move horizontally to compress the second spring;

[0013] A second card block matching plate is further provided on the side wall of the movable buckle, and the second card block matching plate is located between the first card block matching plate and the top plate, and the first card block matching plate and the second card block matching plate are respectively engaged with the wedge-shaped card blocks at the upper ends of the two sliding insulating sleeves;

[0014] The ends of the first card block matching plate, the second card block matching plate and the fixed card buckle side wall extension plate are all provided with sliders, and the opposite side walls of the fixed card buckle and the movable card buckle are all provided with sliding grooves that match the sliders, and the sliders are slidably connected in the sliding grooves.

[0015] As a possible implementation manner, further, chamfers with the same slope as the inclined surface of the wedge-shaped block are provided on the side walls of the first block matching plate and the second block matching plate facing the wedge-shaped block.

[0016] As a possible implementation manner, further, the first spring is sleeved on the outside of the fixing column.

[0017] As a possible implementation manner, further, a baffle is provided at the bottom of the sliding insulating sleeve, and the metal insert passes through the baffle and is gap-fitted with the baffle.

[0018] As a possible implementation manner, further, when the insulating sleeve clamping assembly is released and the elastic force of the first spring is released to push the sliding insulating sleeve down to the bottom, the metal insert does not protrude from the bottom surface of the sliding insulating sleeve.

[0019] The beneficial effects of the present invention are:

[0020] The utility model provides a special safety push-pop-up plug for railway maintenance. When in use, the user can unplug the plug with one hand, which effectively improves the convenience and safety of unplugging the plug.

[0021] When using the plug, by inserting the metal insert into the socket hole, the sliding insulating sleeve will be automatically pushed into the shell and compress the first spring. During the process of the sliding insulating sleeve being pressed into the shell, the insulating sleeve clamping assembly clamps the sliding insulating sleeve to fix the insulating sleeve, and the plug now works normally. When removing the plug, by pressing the button, the insulating sleeve clamping assembly opens, the sliding insulating sleeve is unrestricted, and the first spring drives the sliding insulating sleeve to reset, and the sliding insulating sleeve is pushed outward, so that the shell drives the metal insert away from the socket, thereby separating the plug and the socket. The plug is removed by pressing the button, and during the process of removing the plug, the sliding insulating sleeve gradually covers the metal insert. In summary, the convenience and safety of unplugging the plug are improved, which is suitable for further promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the movable buckle in the utility model;

[0025] Figure 4 This is a structural diagram of the insulating sleeve clamping assembly in the utility model.

[0026] The reference numerals in the accompanying drawings are as follows:

[0027] Housing 1; metal insert 2; sliding insulating sleeve 3; fixing buckle 4; second spring 5; wedge-shaped block 6; first spring 7; movable buckle 8; button 9; baffle 10; slide 11; slider 12; fixing column 13; first block mating plate 81; top plate 82; second block mating plate 83. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] Refer to the attached Figure 1-2 As shown, a safety push-pop-up plug specially used for railway maintenance includes a shell 1, a metal insert 2, a fixing column 13, a sliding insulating sleeve 3, a first spring 7, a button 9 and an insulating sleeve clamping assembly. The two sliding insulating sleeves 3 can be telescopically slidably installed at the bottom of the shell 1. In this embodiment, the upper end of the side wall of the sliding insulating sleeve 3 is provided with a wedge-shaped block 6 for engaging with the insulating sleeve clamping assembly. The inclined surface of the wedge-shaped block 6 is set upward. The bottom of the shell 1 is provided with an opening for avoiding the sliding insulating sleeve 3. The sliding insulating sleeve 3 and the opening at the bottom of the shell 1 are clearance-matched, so that the sliding insulating sleeve 3 can be telescopically slid, and the wedge-shaped block 6 at the upper end of the side wall of the sliding insulating sleeve 3 can also prevent the sliding insulating sleeve 3 from falling out of the shell 1.

[0030] A first spring 7 is fixed to the top of the sliding insulating sleeve 3, with the upper end of the first spring 7 fixed to the top of the inner cavity of the housing 1. The first spring 7 is used to push the sliding insulating sleeve 3 downward. The sliding insulating sleeve 3 has a longitudinal opening for mounting the metal insert 2. The metal insert 2 is installed in the longitudinal opening of the sliding insulating sleeve 3 and slides with the sliding insulating sleeve 3. The upper end of the metal insert 2 is fixedly connected to the fixing post 13, and the other end of the fixing post 13 is fixed to the top of the inner cavity of the housing 1. In other words, the metal insert 2 is fixedly connected to the housing 1 through the fixing post 13, so that the metal insert 2 is in a fixed state and cannot expand or contract, while the sliding insulating sleeve 3 can expand and contract and slide on the metal insert 2. In this embodiment, the first spring 7 is mounted on the outside of the fixing post 13.

[0031] An insulating sleeve clamping assembly is provided inside the housing 1 to clamp and fix the insulating sleeve 3 when the insulating sleeve 3 is pressed into the housing 1 , and a button 9 is provided on the side wall of the housing 1 to release the clamping of the insulating sleeve clamping assembly by pressing.

[0032] In this embodiment, when the insulating sleeve clamping assembly is released and the elastic force on the first spring 7 is released to push the sliding insulating sleeve 3 to the bottom, the metal insert 2 does not protrude from the bottom surface of the sliding insulating sleeve 3; this arrangement facilitates the complete removal of the metal insert 2 from the socket.

[0033] When using the plug connection, hold the shell 1 and insert the metal plug 2 into the hole of the socket. Since the socket hole is only for the metal plug 2 to be inserted, the sliding insulating sleeve 3 will be pushed toward the inside of the shell 1 by the socket. During the movement of the sliding insulating sleeve 3, the first spring 7 is compressed along the fixed column 13, and at the same time, the sliding insulating sleeve 3 will be clamped by the insulating sleeve clamping assembly inside the shell 1 to limit the sliding insulating sleeve 3.

[0034] When unplugging the plug, press the button 9 with one hand, and the button 9 moves toward the inside of the shell 1, so that the insulating sleeve clamping assembly is opened, and the sliding insulating sleeve 3 loses its limit, the elastic force on the first spring 7 is released, and the sliding insulating sleeve 3 is pushed out under the elastic force of the first spring 7, so that the shell 1 drives the metal insert 2 to move away from the socket, thereby realizing the separation of the plug and the socket. In the process of separating the plug and the socket, the part of the metal insert 2 of the plug exposed from the socket will be blocked by the sliding insulating sleeve 3, thereby improving the safety of unplugging the plug.

[0035] Refer to the attached Figure 2-4 As shown, the insulating sleeve clamping assembly includes a fixed clip 4, a movable clip 8 and a second spring 5. One end of the fixed clip 4 is horizontally fixed to the side wall of the inner cavity of the shell 1. The fixed clip 4 and the movable clip 8 are arranged horizontally opposite to each other. An extension plate is provided on the side wall of the fixed clip 4 facing the movable clip 8. In this embodiment, the fixed clip 4 is F-shaped.

[0036] A first card block matching plate 81 and a top plate 82 are respectively provided at both ends of the side wall of the movable buckle 8. The first card block matching plate 81 and the top plate 82 are both facing the fixed buckle 4, and the first card block matching plate 81 is facing the fixed connection side of the fixed buckle 4 and the shell 1. A second spring 5 for pushing the movable buckle 8 to move horizontally is fixed on the side wall of the first card block matching plate 81 away from the top plate 82. The other end of the second spring 5 is fixed on the side wall of the inner cavity of the shell 1. The button 9 on the side wall of the shell 1 is fixedly connected to the top plate 82 through a connecting rod, which is used to push the movable buckle 8 to move horizontally and compress the second spring 5.

[0037] A second card block matching plate 83 is also provided on the side wall of the movable clip 8, and the second card block matching plate 83 is located between the first card block matching plate 81 and the top plate 82. The first card block matching plate 81 and the second card block matching plate 83 are respectively engaged with the wedge-shaped card blocks 6 at the upper ends of the two sliding insulating sleeves 3 to achieve clamping and fixing of the sliding insulating sleeves 3.

[0038] Refer to the attached Figure 2 and 4As shown, when it is necessary to release the connection between the wedge-shaped block 6 on the sliding insulating sleeve 3 and the first block matching plate 81 and the second block matching plate 83, press the button 9, and the button 9 pushes the movable buckle 8 to move horizontally to the left and compresses the second spring 5. The movable buckle 8 moves to the left to separate the wedge-shaped block 6 on the sliding insulating sleeve 3 from the first block matching plate 81 and the second block matching plate 83, thereby realizing the clamping and loosening of the insulating sleeve clamping assembly; when the button 9 is released, the elastic force on the second spring 5 is released, thereby pushing the movable buckle 8 to move right and reset.

[0039] Sliders 12 are provided at the ends of the first clamping block mating plate 81, the second clamping block mating plate 83, and the sidewall extension plate of the fixed clamping buckle 4. Slide grooves 11 that cooperate with the slides 12 are provided on the opposite sidewalls of the fixed clamping buckle 4 and the movable clamping buckle 8. The slides 12 are slidably connected to the slide grooves 11. The slides 12 cooperate with the slide grooves 11 to limit the movable clamping buckle 8 and prevent it from moving longitudinally.

[0040] When the plug is inserted into the socket, the sliding insulating sleeve 3 will be pushed into the shell 1, and the first spring 7 will be compressed. During the upward movement of the sliding insulating sleeve 3, the wedge-shaped block 6 on the side wall of the sliding insulating sleeve 3 will push the movable buckle 8 to move to the left, and the second spring 5 is compressed. When the wedge-shaped block 6 completely passes through the movable buckle 8, the elastic force on the second spring 5 is released to push the movable buckle 8 to move right and reset. At the same time, the first block matching plate 81 and the second block matching plate 83 are connected to the bottom of the wedge-shaped block 6 on the side wall of the sliding insulating sleeve 3 to achieve clamping and fixation of the sliding insulating sleeve 3.

[0041] Refer to the attached Figure 3 As shown, chamfers with the same slope as the inclined surface of the wedge block 6 are provided on the side walls of the first card block matching plate 81 and the second card block matching plate 83 facing the wedge block 6; during the upward movement of the sliding insulating sleeve 3, the inclined surface of the wedge block 6 is in contact with the chamfers on the first card block matching plate 81 and the second card block matching plate 83, thereby increasing the contact surface between the wedge block 6 and the first card block matching plate 81 and the second card block matching plate 83. As the sliding insulating sleeve 3 moves upward, the movable buckle 8 is pushed to move to the left.

[0042] Refer to the attached Figure 2 As shown, a baffle 10 is provided at the bottom of the sliding insulating sleeve 3, and the metal insert 2 passes through the baffle 10 and is loosely fitted with the baffle 10, that is, the baffle 10 and the sliding insulating sleeve 3 are also slidingly fitted; when the sliding insulating sleeve 3 is pushed out, the insulating sleeve 3 contacts the panel of the socket through the baffle 10, and the baffle 10 increases the contact area between the sliding insulating sleeve 3 and the socket panel, so that the force on the plug is balanced, which is conducive to pulling out the metal insert 2 in the plug from the socket.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A safety push-to-pop plug for railway maintenance, characterized in that: The invention comprises a housing (1), a metal insert (2), a fixing column (13), a sliding insulating sleeve (3), a first spring (7), a button (9) and an insulating sleeve clamping assembly, wherein the two sliding insulating sleeves (3) are telescopically and slidably mounted on the bottom of the housing (1), the top of each sliding insulating sleeve (3) is fixed with a first spring (7), and the upper end of the first spring (7) is fixed to the top of the inner cavity of the housing (1); The sliding insulating sleeve (3) is provided with an opening for installing a metal insert (2) in the longitudinal direction. The metal insert (2) is installed in the longitudinal opening of the sliding insulating sleeve (3) and is slidably matched with the sliding insulating sleeve (3). The upper end of the metal insert (2) is fixedly connected to a fixing column (13), and the other end of the fixing column (13) is fixed to the top of the inner cavity of the housing (1); An insulating sleeve clamping assembly is provided inside the housing (1) and can clamp and fix the insulating sleeve (3) when the insulating sleeve (3) is pressed into the housing (1). A button (9) is provided on the side wall of the housing (1) and can release the clamping of the insulating sleeve clamping assembly by pressing.

2. A safety push-to-pop-up plug for railway maintenance according to claim 1, characterized in that: The bottom of the housing (1) is provided with an opening for avoiding the sliding insulating sleeve (3), and the sliding insulating sleeve (3) and the opening at the bottom of the housing (1) are clearance-fitted.

3. The safety push-to-pop plug for railway maintenance according to claim 1, characterized in that: The upper end of the side wall of the sliding insulating sleeve (3) is provided with a wedge-shaped clamping block (6) for engaging with the insulating sleeve clamping assembly, and the inclined surface of the wedge-shaped clamping block (6) is arranged upward.

4. The safety push-to-pop-up plug for railway maintenance according to claim 3, characterized in that: The insulating sleeve clamping assembly comprises a fixed buckle (4), a movable buckle (8) and a second spring (5); one end of the fixed buckle (4) is horizontally fixed to the side wall of the inner cavity of the housing (1); the fixed buckle (4) and the movable buckle (8) are arranged horizontally opposite to each other; an extension plate is provided on the side wall of the fixed buckle (4) facing the movable buckle (8); A first card block matching plate (81) and a top plate (82) are respectively provided at both ends of the side wall of the movable buckle (8), the first card block matching plate (81) and the top plate (82) both face the fixed buckle (4), and the first card block matching plate (81) faces the fixed connection side of the fixed buckle (4) and the shell (1), a second spring (5) for pushing the movable buckle (8) to move horizontally is fixed on the side wall of the first card block matching plate (81) away from the top plate (82), the other end of the second spring (5) is fixed on the side wall of the inner cavity of the shell (1), and the button (9) on the side wall of the shell (1) is fixedly connected to the top plate (82) through a connecting rod, and is used to push the movable buckle (8) to move horizontally to compress the second spring (5); A second card block matching plate (83) is also provided on the side wall of the movable buckle (8), and the second card block matching plate (83) is located between the first card block matching plate (81) and the top plate (82), and the first card block matching plate (81) and the second card block matching plate (83) are respectively engaged with the wedge-shaped card blocks (6) at the upper ends of the two sliding insulating sleeves (3); The ends of the first card block matching plate (81), the second card block matching plate (83) and the side wall extension plate of the fixed card buckle (4) are all provided with a slider (12), and the opposite side walls of the fixed card buckle (4) and the movable card buckle (8) are both provided with a sliding groove (11) that matches the slider (12), and the slider (12) is slidably connected in the sliding groove (11).

5. The safety push-to-pop-up plug for railway maintenance according to claim 4, characterized in that: The side walls of the first clamping block matching plate (81) and the second clamping block matching plate (83) facing the wedge-shaped clamping block (6) are provided with chamfers with the same slope as the slope of the wedge-shaped clamping block (6).

6. The safety push-to-pop plug for railway maintenance according to claim 1, characterized in that: The first spring (7) is sleeved on the outside of the fixing column (13).

7. The safety push-to-pop plug for railway maintenance according to claim 1, characterized in that: A baffle (10) is provided at the bottom of the sliding insulating sleeve (3), and the metal insert (2) passes through the baffle (10) and is clearance-matched with the baffle (10).

8. The safety push-to-pop plug for railway maintenance according to claim 1, characterized in that: When the insulating sleeve clamping assembly is released and the elastic force of the first spring (7) is released to push the sliding insulating sleeve (3) down to the bottom, the metal insert (2) does not protrude from the bottom surface of the sliding insulating sleeve (3).

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