A power cord plug with built-in double-stage protection and anti-electric shock function

Abstract

The present invention relates to the technical field of power cord plugs, and more specifically, to a power cord plug with an embedded structure and double-stage protection against electric shock. It at least comprises an insert block, a housing is slidably disposed on the inner side of the insert block, and the housing is used to block the outer side of the insert block; a conductive rod is disposed on the inner side of the housing, and the conductive rod is used to connect to a plug board for power supply; a slide rail is provided on the inner side of the insert block, and a spring is installed inside the slide rail; a slider is disposed on the surface of the housing, and the spring is used to push the housing out and reset; a connecting arm is installed on the side wall of the sheath, and the sheath extends out of the outer side of the housing, and the sheath is used to indicate the position of the conductive rod. When the conductive rod is inserted into the plug board jack, the housing is pressed, and the conductive rod extends out of the inner side of the sheath downwards. As the insertion goes deeper, the housing is always blocked on the plug board, and the exposed conductive rod is always blocked, so as to prevent people from contacting the conductive rod and getting an electric shock. The linkage design of the sheath protruding from the housing facilitates the next person to align the plug board by observing the position of the sheath.

Description

Technical Field

[0001] The invention relates to the technical field of power cord plugs, in particular to an embedded structure double-section protection type anti-electric shock power cord plug. Background Art

[0002] The power cord plug is a device that is connected to the socket to form power. Currently, the power cord plug is mostly directly set at the end of the device. When the power cord plug is used, it is necessary to insert the power cord plug along the socket corresponding to the socket. During the process of inserting and unplugging the power cord plug, the power cord plug will gradually move inward and outward along the socket. During this process, the conductive part of the power cord plug will be exposed to the outside and will only go deeper into the socket as it is inserted. However, during the use of the current power cord plug, the conductive part is not adapted to the movement of the conductive part when the power cord plug is inserted and unplugged. The blocking structure makes people at risk of electric shock during the process of inserting or unplugging. If a hole is directly opened on the power cord plug, a block is set in the hole to block the conductive part. The block retracts after the power cord plug is inserted, but when the conductive part leaves the socket, the baffle extends, and a certain gap is formed between the conductive part and the baffle, which makes the conductive part easy to shake during use; secondly, if a movable ring is directly set on the outside of the power cord plug, the blocking of the ring will affect the ability of people to align the conductive part with the plug socket when using the power cord plug. In view of this, we propose an embedded structure double-stage protection anti-electric shock power cord plug to change a series of problems existing in the current power cord plug. Summary of the invention

[0003] The object of the present invention is to provide a double-stage protection type power cord plug with an embedded structure to prevent electric shock, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides a power cord plug with an embedded structure and double-stage protection against electric shock, comprising at least:

[0005] An insert block, a housing is slidably disposed inside the insert block, and the housing is used to block the outside of the insert block;

[0006] A housing, wherein a conductive rod is disposed on the inner side of the housing, wherein the conductive rod is in a plurality of pieces and is mounted on the side of the plug block, wherein the conductive rod is used to connect to the plug board for power supply, wherein a slide rail is disposed on the inner side of the plug block, wherein a spring is installed inside the slide rail, wherein a slider is disposed on the surface of the housing, wherein the slider slides on the inner side of the slide rail, wherein the slider is fixedly connected to one end of the spring, wherein the spring is used to push the housing out and reset;

[0007] The sheath is located on the inner side of the shell, the number of the sheath and the conductive rod are matched, the sheath is sleeved on the outer side of the conductive rod, the side wall of the sheath is provided with a connecting arm, the connecting arm is fixedly connected to the shell, the sheath extends out of the outer side of the shell, and the sheath is used to indicate the position of the conductive rod.

[0008] When the shell of the present invention is used in practice, when the plug block is placed and not in use, the slider will be subjected to the elastic force of the spring, pushing the slider outward from the shell to the outside of the conductive rod, thereby blocking the conductive rod within a certain range, ensuring that the conductive rod will not be accidentally collided when not in use, and the sheath is connected to the connecting arm, and the sheath moves synchronously with the position of the shell, the sheath blocks the end of the conductive rod, and the side of the sheath protrudes into the shell, and personnel can observe the position of the sheath to judge the position of the conductive rod, which is beneficial for subsequent insertion. The personnel can observe that the sheath can be aligned with the socket on the plug board to ensure that the conductive rod is accurately inserted, and secondly, the secondary blocking of the sheath blocks and protects the conductive rod close to the outside of the shell, further preventing the conductive rod from being damaged; when the plug block is used and the conductive rod needs to be inserted into the socket of the plug board, the surface of the plug block is picked up, and the plug board socket is connected according to the corresponding position of the sheath, and human pressure is pressed toward When the plug is fully inserted into the plug board, the position of the shell is fixed synchronously. During this process, the exposure of the conductive rod is always blocked to avoid the possibility of personnel contacting the conductive rod, thereby ensuring that the personnel cannot get an electric shock. Secondly, when the plug block leaves the plug board, the plug block is dragged upward, and the shell will squeeze the slider under the elastic force of the spring, so that the slider is pushed out of the slide rail. During this process, the shell is always located on the outside of the conductive rod, which can also ensure that when the conductive rod is pulled out, the personnel will not contact the conductive rod, thereby preventing the personnel from getting an electric shock. At the same time, the linkage design of the sheath protruding from the shell can ensure that the sheath is reset to the side of the protruding shell after use, which is beneficial for the personnel to align the plug board through the position of the sheath next time.

[0009] As a further improvement of the technical solution, a concave cavity is opened on the inner side of the plug block, and the shell slides inside the concave cavity, and the size of the concave cavity is adapted to that of the shell.

[0010] As a further improvement of the technical solution, a sliding groove is provided on the inner wall of the shell, and the connecting arm slides in the sliding groove, and the sliding groove is used to adjust the position of the connecting arm.

[0011] As a further improvement of the technical solution, a limit plate is inserted into the inner wall of the sheath, and the limit plate is used to block and seal one side of the sheath, and one side of the limit plate is a "T"-shaped structure.

[0012] As a further improvement of the technical solution, a cavity is opened on the surface of the sheath, and the cavity is divided into two groups arranged opposite to each other, and the limit plate is located in the cavity and slides.

[0013] As a further improvement of the technical solution, the connecting arm and the slide groove can be locked by bolts.

[0014] As a further improvement of the technical solution, a cover plate is hinged on one side of the plug block, and the interior of the plug block is connected with cables, and the cables are respectively connected to the conductive rods through metal wires.

[0015] As a further improvement of the technical solution, a positioning plate is clamped on the outer side of the conductive rod, and the positioning plate is used to wipe off dust attached to the conductive rod. The side surface of the positioning plate is located on the plug block.

[0016] As a further improvement of the technical solution, a positioning cavity is provided on the surface of the positioning plate, and the conductive rod slides in the positioning cavity.

[0017] As a further improvement of the technical solution, a notch is provided on the surface of the positioning plate, and a drag rod is hingedly connected to the inner side of the notch.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the embedded double-stage protection type anti-electric shock power cord plug, the shell slides to the outside of the conductive rod to block the conductive rod within a certain range, ensuring that the conductive rod will not be accidentally collided when not in use, and the sheath moves synchronously with the position of the shell, and the sheath blocks the end of the conductive rod. The secondary blocking of the sheath blocks the conductive rod close to the outside of the shell, further preventing the conductive rod from being damaged.

[0020] 2. In the embedded double-stage protection type anti-electric shock power cord plug, the conductive rod is inserted into the socket of the plug board, and the shell is pressed simultaneously, and the conductive rod extends out of the inner side of the sheath downward. As the insertion goes deeper, the shell is always blocked on the plug board. During this process, the exposed conductive rod is always blocked to avoid the possibility of people contacting the conductive rod, thereby ensuring that people cannot get an electric shock. When the plug block leaves the plug board, the sheath protrudes from the shell by a linkage design, which can ensure that the sheath is reset to the side of the protruding shell after use, which is conducive to the next time the person observes the position of the sheath to align with the plug board

[0021] 3. In this kind of embedded structure double-stage protection type anti-electric shock power cord plug, by adjusting the outlet position of the sheath extending out of the shell to be smaller, when the conductive rod is inserted into the socket, the blocking position occupied by the sheath is reduced as much as possible, so that the conductive rod is in adaptive contact with the socket, forming a good power-on effect.

[0022] 4. In this kind of embedded structure double-section protection type anti-electric shock power cord plug, by folding the drag rod along the hinge, the person can quickly drag out the positioning plate by holding the drag rod tightly with his hand. The drag rod is hinged in the recess and folded in the recess when not in use without protruding from the recess, which can ensure that the drag rod will not affect the positioning plate and ensure that the size of the positioning plate will not affect the distance of the conductive rod inserted into the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 The second schematic diagram of the overall structure of the present invention;

[0025] Figure 3 The third schematic diagram of the overall structure of the present invention;

[0026] Figure 4 This is a disassembled diagram of the plug block and the housing structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at A;

[0028] Figure 6 It is a schematic diagram of the plug structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the housing structure of the present invention;

[0030] Figure 8 This is a disassembled diagram of the sheath and the limiting plate structure of the present invention;

[0031] Fig. 9 The fourth schematic diagram of the overall structure of the present invention;

[0032] Fig.10 It is a schematic diagram of the positioning plate structure of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 1. Insert block; 11. Slide rail; 12. Spring; 13. Concave cavity;

[0035] 2. Shell; 21. Conductive rod; 22. Slider; 23. Sheath; 231. Cavity; 24. Connecting arm; 25. Limiting plate;

[0036] 3. Cover plate;

[0037] 4. Cables;

[0038] 5. Positioning plate; 51. Positioning cavity; 52. Notch; 53. Drag rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] See also Figure 1-Figure 10 As shown, the purpose of this embodiment is to provide a power cord plug with an embedded structure and double-stage protection against electric shock, which at least includes:

[0042] An insert block 1, a housing 2 is slidably disposed inside the insert block 1, and the housing 2 is used to block the outside of the insert block 1;

[0043] The housing 2 has a conductive rod 21 disposed on the inner side of the housing 2. The conductive rod 21 is a plurality of conductive rods 21. The conductive rod 21 is installed on the side of the plug block 1. The conductive rod 21 is used to connect with the plug board for power supply. The plug block 1 has a slide rail 11 disposed on the inner side of the slide rail 11. A spring 12 is installed inside the slide rail 11. A slider 22 is disposed on the surface of the housing 2. The slider 22 slides on the inner side of the slide rail 11. The slider 22 is fixedly connected to one end of the spring 12. The spring 12 is used to push the housing 2 out and reset it.

[0044] The sheath 23 is located on the inner side of the shell 2. The number of the sheath 23 and the conductive rod 21 are matched. The sheath 23 is sleeved on the outer side of the conductive rod 21. The side wall of the sheath 23 is installed with a connecting arm 24. The connecting arm 24 is fixedly connected to the shell 2. The sheath 23 extends out of the outer side of the shell 2. The sheath 23 is used to indicate the position of the conductive rod 21.

[0045] When the housing 2 of the present invention is used, when the plug block 1 is not in use, the slider 22 is subjected to the elastic force of the spring 12, and the slider 22 is pushed outward from the housing 2 to the outside of the conductive rod 21, thereby blocking the conductive rod 21 within a certain range, ensuring that the conductive rod 21 will not be accidentally hit when not in use, and the sheath 23 is connected to the connecting arm 24, and the sheath 23 moves synchronously with the position of the housing 2, and the sheath 23 blocks the end of the conductive rod 21, and the side of the sheath 23 protrudes from the housing 2, which is visible to personnel. The position of the sheath 23 is observed to determine the position of the conductive rod 21, which is beneficial for the subsequent insertion. The sheath 23 can be observed to be aligned with the socket on the plug board to ensure that the conductive rod 21 is accurately inserted. Secondly, the secondary blocking of the sheath 23 is to block and protect the conductive rod 21 near the outer side of the shell 2, further preventing the conductive rod 21 from being damaged. When the plug block 1 is used and the conductive rod 21 needs to be inserted into the socket of the plug board, the surface of the plug block 1 is picked up and connected to the plug board socket according to the corresponding position of the sheath 23. When the conductive rod 21 is pressed downward, the shell 2 is pressed synchronously, so that the conductive rod 21 gradually extends out of the inner side of the sheath 23 downward, and the sheath 23 and the shell 2 will be left on the plug board. As the insertion goes deeper, the shell 2 is always blocked on the plug board, and the shell 2 will be compressed to the inner side of the plug block 1. When the conductive rod 21 is fully inserted into the plug board, the position of the shell 2 is fixed synchronously. During this process, the exposed conductive rod 21 is always blocked to avoid the possibility of people contacting the conductive rod 21, thereby ensuring that people cannot get an electric shock. Secondly, in the plug block When the plug block 1 leaves the plug board, the plug block 1 is dragged upward, and the housing 2 will squeeze the slider 22 under the elastic force of the spring 12, so that the slider 22 is pushed out of the slide rail 11. In this process, the housing 2 is always located on the outside of the conductive rod 21, which can also ensure that when the conductive rod 21 is pulled out, the person will not touch the conductive rod 21, so that the person will not be electrocuted. At the same time, the linkage design of the sheath 23 protruding from the housing 2 can ensure that the sheath 23 is reset to the side of the protruding housing 2 after use, which is conducive to the person aligning the plug board through the position of the sheath 23 next time.

[0046] In order to allow the shell 2 to fit and slide on the inner side of the plug-in block 1, a cavity 13 is opened on the inner side of the plug-in block 1. The shell 2 slides inside the cavity 13. The size of the cavity 13 is adapted to that of the shell 2. The shell 2 slides inward along the cavity 13. The shell 2 is partially retracted in the cavity 13. The fit between the shell 2 and the cavity 13 ensures that other dust and foreign matter will not enter the cavity 13, so that there will be no accidents when the shell 2 is in use.

[0047] Considering that the position of the connecting arm 24 in the above-mentioned figure is fixed, the distance that the sheath 23 extends out of the outer side of the shell 2 cannot be adjusted, and the position of the conductive rod 21 observed by personnel during use is not accurate enough, a slide groove is provided on the inner wall of the shell 2, and the connecting arm 24 slides in the slide groove, and the slide groove is used to adjust the position of the connecting arm 24. In order to achieve the best fitting position of the sheath 23 in the shell 2, the connecting arm 24 slides along the slide groove. When the extending position of the sheath 23 is coordinated with the perspective of the personnel's eyes when observing the plug block 1, it is conducive to aligning the conductive rod 21 and inserting it into the plug board socket; secondly, by adjusting the exit position of the sheath 23 extending out of the shell 2 to be smaller, when the conductive rod 21 is inserted into the socket, the blocking position occupied by the sheath 23 is reduced as much as possible, so that the conductive rod 21 is fitted and contacted with the socket, forming a good power-on effect.

[0048] Furthermore, the connecting arm 24 and the slide groove can be locked by bolts, and multiple groups of connecting holes can be opened on the surface of the slide groove and the connecting arm 24, and locked along the connecting holes by bolts, so that after the connecting arm 24 slides in the slide groove, the position can be directly locked without accidental shaking, which is beneficial to the use of the sheath 23 in blocking the conductive rod 21.

[0049] In order to solve the problem that after the conductive rod 21 is blocked from the side by the sheath 23, the end of the conductive rod 21 is easily damaged by accidental collision due to the hollow structure of the shell 2 and the sheath 23, a limit plate 25 is inserted into the inner wall of the sheath 23, and the limit plate 25 is used to block and seal one side of the sheath 23. One side of the limit plate 25 is a "T"-shaped structure. For example, when the plug block 1 is placed horizontally on the table, small-sized parts may touch the conductive rod 21 and cause damage, such as bolts and nuts. When the plug block 1 is not in use, the limit plate 25 is closed on the open side of the sheath 23 and blocks the conductive rod 21, so that the end of the conductive rod 21 is blocked in the sheath 23 and will not be touched by smaller parts, thereby achieving protection.

[0050] Furthermore, a cavity 231 is provided on the surface of the sheath 23, and the cavity 231 is divided into two groups arranged opposite to each other. The limit plate 25 is located in the cavity 231 and slides. The limit plate 25 slides along the cavity 231, thereby forming a barrier to the conductive rod 21 in the sheath 23 to ensure that the conductive rod 21 will not touch hard foreign objects and cause damage, thereby increasing the service life of the conductive rod 21 and reducing the replacement cost.

[0051] Furthermore, a cover plate 3 is hinged on one side of the plug block 1, and a cable 4 is connected to the interior of the plug block 1. The cable 4 is respectively connected to the conductive rod 21 through metal wires. The plug block 1, the conductive rod 21 and the cable 4 form an integral plug structure, which can be used normally when inserted into the plug board.

[0052] In order to solve the problem that dust is easily attached to the surface of the conductive rod 21 during use, a positioning plate 5 is clamped on the outer side of the conductive rod 21. The positioning plate 5 is used to wipe off the dust attached to the conductive rod 21. The side of the positioning plate 5 is located on the plug block 1, and is integrated with the connecting arm 24 through the sheath 23. The sheath 23 is bolted in the slide groove. After long-term use, the bolts are removed, and the positioning plate 5 slides out along the side of the plug block 1. The positioning plate 5 rubs against the side of the conductive rod 21, and the dust attached to the surface is removed.

[0053] Furthermore, a positioning cavity 51 is provided on the surface of the positioning plate 5, and the conductive rod 21 slides in the positioning cavity 51, wherein the positioning cavity 51 fits closely with the conductive rod 21, and when the positioning plate 5 slides out along the side of the plug 1, the positioning cavity 51 scrapes and wipes the outer side of the conductive rod 21 to ensure that the dust is scraped outward along the positioning cavity 51 onto the positioning plate 5, and the positioning plate 5 can be removed for cleaning.

[0054] In order to solve the problem that the positioning plate 5 is inconvenient to be pulled out manually, a recess 52 is provided on the surface of the positioning plate 5, and a drag rod 53 is hinged on the inner side of the recess 52. By folding the drag rod 53 along the hinge, a person can quickly drag out the positioning plate 5 by holding the drag rod 53 tightly. The drag rod 53 is hinged in the recess 52, and is folded in the recess 52 when not in use, without protruding out of the recess 52, thereby ensuring that the drag rod 53 does not affect the positioning plate 5, and ensuring that the size of the positioning plate 5 does not affect the distance of the conductive rod 21 inserted into the socket.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double-stage protection type power cord plug with an embedded structure to prevent electric shock, characterized in that: At least: An insert block (1), a shell (2) slidingly disposed inside the insert block (1), the shell (2) being used to block the outside of the insert block (1); A shell (2), wherein a conductive rod (21) is provided on the inner side of the shell (2), wherein the conductive rod (21) is in a plurality and is mounted on the side of the plug block (1). The conductive rod (21) is used to connect to the plug board for power supply. A slide rail (11) is provided on the inner side of the plug block (1), wherein a spring (12) is installed inside the slide rail (11). A slider (22) is provided on the surface of the shell (2), wherein the slider (22) is located on the inner side of the slide rail (11) for sliding, wherein the slider (22) is fixedly connected to one end of the spring (12), and wherein the spring (12) is used to push the shell (2) out and reset. a sheath (23), the sheath (23) being located on the inner side of the housing (2), the number of the sheath (23) being adapted to the number of the conductive rods (21), the sheath (23) being sleeved on the outer side of the conductive rods (21), a connecting arm (24) being installed on the side wall of the sheath (23), the connecting arm (24) being fixedly connected to the housing (2), the sheath (23) extending out of the outer side of the housing (2), and the sheath (23) being used to indicate the position of the conductive rods (21); A limiting plate (25) is inserted into the inner wall of the sheath (23), and the limiting plate (25) is used to block and seal one side of the sheath (23), and one side of the limiting plate (25) is a "T"-shaped structure; A positioning plate (5) is clamped on the outer side of the conductive rod (21), and the positioning plate (5) is used to wipe off dust attached to the conductive rod (21). The side surface of the positioning plate (5) is located on the insert block (1); A notch (52) is provided on the surface of the positioning plate (5), and a drag rod (53) is hingedly connected to the inner side of the notch (52).

2. The embedded double-stage protection type anti-electric shock power cord plug according to claim 1 is characterized in that: A concave cavity (13) is provided on the inner side of the insert block (1), and the shell (2) is located inside the concave cavity (13) for sliding movement, and the size of the concave cavity (13) matches that of the shell (2).

3. The embedded double-stage protection type anti-electric shock power cord plug according to claim 1 is characterized in that: The inner wall of the housing (2) is provided with a sliding groove, and the connecting arm (24) slides in the sliding groove, and the sliding groove is used to adjust the position of the connecting arm (24).

4. The embedded double-stage protection type anti-electric shock power cord plug according to claim 1 is characterized in that: The surface of the sheath (23) is provided with cavities (231), the cavities (231) are divided into two groups arranged opposite to each other, and the limiting plate (25) is located in the cavities (231) to slide.

5. The embedded double-stage protection type anti-electric shock power cord plug according to claim 1, characterized in that: The connecting arm (24) and the slide slot can be locked by means of bolts.

6. The embedded double-stage protection type anti-electric shock power cord plug according to claim 1, characterized in that: A cover plate (3) is hingedly connected to one side of the plug block (1), and a cable (4) is connected to the interior of the plug block (1), and the cables (4) are respectively connected to the conductive rods (21) via metal wires.

7. The embedded double-stage protection type anti-electric shock power cord plug according to claim 1, characterized in that: A positioning cavity (51) is provided on the surface of the positioning plate (5), and the conductive rod (21) is located in the positioning cavity (51) and slides.

Images