Spring assembly structure of socket safety door

Abstract

The present invention relates to a spring assembly structure of a socket safety door, the spring assembly structure comprising: a safety door, a safety door support seat and a spring; the safety door, which is guided and arranged on the safety door support seat, a safety door stopping side wall, which corresponds to the open position of the safety door, and a spring supporting side wall, which is used to support the support seat end of the spring; a spring, which is pressed between the safety door and the spring supporting side wall, and a supporting protrusion is provided on the safety door stopping side wall and / or a side of the safety door close to the safety door stopping side wall, and the supporting protrusion is located on a side close to a safety door installation opening; or: the safety door stopping side wall and / or a side of the safety door close to the safety door stopping side wall has an inclined supporting surface; when the safety door is in a closed position, the supporting protrusion / inclined supporting surface causes the safety door to be inclinedly supported on the safety door stopping side wall, so that the side of the safety door close to the safety door stopping side wall is closer to the safety door installation opening than the other side, so that the safety door will not arch up or be ejected when installed.

Description

Technical Field

[0001] The invention relates to a spring assembly structure of a socket safety door. Background Art

[0002] Sockets are common electrical appliances in daily life, including wall plugs and flexibly movable adapter strips. For safety reasons, such as to prevent children from plugging in by mistake, and to prevent foreign objects and moisture from entering, safety doors are currently installed at the sockets on the sockets. The safety door is also called a protective door. When there is no plug inserted in the socket, the safety door is in a closed position under the action of a spring, blocking the shell socket on the socket; when a plug is inserted, the corresponding plug or plug post on the plug acts on the inclined surface of the safety door, pushing the safety door open to the open position, thereby enabling the plug or plug post to achieve a conductive connection with the plug-in spring in the socket.

[0003] Most of the safety doors on the existing sockets are directly guided and assembled on the corresponding safety door support seat, and the spring is elastically pressed between the side wall of the safety door support seat and the safety door.

[0004] However, when installing the safety door and spring onto the safety door support seat, if the safety door is not fully pressed down, so that the safety door pressing end of the spring is relatively high, there will be a tilting force component. Figure 1 As shown, one end of the spring (not shown in the figure) is sleeved on the convex column 103 on the safety door support seat 102, and the other end is pressed on the safety door 101. Since the spring is in an inclined state when the safety door 101 is not fully pressed down, the force F of the spring on the safety door can be decomposed into a vertical upward force F1 and a horizontal leftward force F2, and the side wall 104 of the safety door support seat 102 generates a horizontal rightward support force F3 on the safety door 101. The magnitude and direction of the forces F2 and F3 are opposite, and the two offset each other, so that the combined force on the safety door 101 is a vertical upward force F3. In this way, the safety door is prone to arching when installed, resulting in the safety door being not stable enough after installation, and the angle of the inclined surface used to guide the insertion of the plug will change, which will affect the insertion of the plug. In addition, if the operation is improper during assembly, the safety door may be bounced off, affecting the assembly efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a spring assembly structure for a socket safety door, which solves the problem that the existing safety door is prone to arching when installed in a safety door support seat, affecting the insertion of the plug and the safety door may be ejected, affecting the assembly efficiency.

[0006] The spring assembly structure of the socket safety door of the present invention adopts the following technical solution:

[0007] The spring assembly structure of the socket safety door comprises: a safety door, a safety door support seat and a spring;

[0008] A safety door, the guide is arranged on the safety door support seat, and has a closed position and an open position in the guide stroke;

[0009] A safety door support seat, comprising a safety door installation entrance, a safety door blocking side wall and a spring supporting side wall;

[0010] The safety door installation port is arranged at the top of the safety door support seat for the safety door to be installed downwards;

[0011] The safety door stop side wall corresponds to the opening position of the safety door and is used to limit the safety door moving to the opening position; the spring support side wall is used to support the support seat end of the spring;

[0012] A spring, pressed between the safety door and the spring-supported side wall, for applying a force to the safety door to move toward a closed position;

[0013] The safety door stopping side wall and / or the safety door on a side close to the safety door stopping side wall are provided with a supporting protrusion, and the supporting protrusion is located on a side close to the safety door installation opening;

[0014] When the safety door is in the closed position, the support protrusion makes the safety door tilted and supported on the safety door stop side wall, so that the side of the safety door close to the safety door stop side wall is closer to the safety door installation entrance than the other side;

[0015] or:

[0016] The safety door stopping side wall and / or a side of the safety door close to the safety door stopping side wall has an inclined supporting surface;

[0017] When the safety door is in the closed position, the inclined supporting surface enables the safety door to be inclinedly supported on the safety door stopping side wall, so that the side of the safety door close to the safety door stopping side wall is closer to the safety door installation entrance than the other side; a guide groove is provided in the middle position of the bottom of the safety door, and a convex rib is horizontally provided on the safety door support seat corresponding to the position of the guide groove so that the safety door can be guided and set on the safety door support seat.

[0018] Beneficial effect: The spring assembly structure of the socket safety door provided by the present invention has two technical solutions. The first is that a supporting protrusion is provided on the stopping side wall of the safety door and / or the side of the safety door close to the stopping side wall of the safety door. The second is that an inclined supporting surface is provided on the stopping side wall of the safety door and / or the side of the safety door close to the stopping side wall of the safety door. The supporting protrusion / inclined supporting surface enables the safety door to be tilted and supported on the stopping side wall of the safety door when the safety door is in the closed position. The side of the safety door close to the stopping side wall of the safety door is closer to the safety door installation port than the other side. In this way, when the safety door is installed downward, the safety door will be in an inclined state, reducing the difference between the inclination angle of the safety door and the inclination angle of the spring, thereby reducing the component force of the safety door toward the safety door installation port, so that the safety door will not be arched during installation, the safety door will be stable after installation and will not affect the insertion of the plug, and the safety door will not be easy to pop up during installation, thereby ensuring assembly efficiency.

[0019] As a preferred technical solution, the supporting protrusion is arranged on a side of the safety door close to the safety door stop side wall;

[0020] The supporting surface of the supporting protrusion used to support the safety door stop side wall is an arc-shaped surface, and the arc-shaped surface is used to form a contact line with the safety door stop side wall that is perpendicular to the installation direction of the safety door.

[0021] Beneficial effects: The use of the curved surface facilitates the design of the mold and demoulding during manufacturing. In addition, the curved surface can form a line contact with the side wall of the safety door stop, which can improve the support stability.

[0022] As a preferred technical solution, the cross-section of the supporting protrusion is semicircular.

[0023] Beneficial effects: The convex rib with a semicircular cross section is easy to manufacture and process.

[0024] As a preferred technical solution, a spring righting structure is provided on the safety door.

[0025] Beneficial effect: The spring righting structure can make the safety door top pressure end of the spring form a radial limit with the safety door, so as to better prevent the safety door from being ejected.

[0026] As a preferred technical solution, a spring insertion hole is provided on a side of the safety door close to the spring, and the spring righting structure is formed by the spring insertion hole.

[0027] Beneficial effects: The spring insertion hole facilitates the insertion of the top pressure end of the spring safety door, facilitates the fixing of the spring, and can reduce space occupation.

[0028] As a preferred technical solution, a spring straightening structure is provided on the spring support side wall.

[0029] Beneficial effect: The spring righting structure ensures that the supporting end of the spring presses against the safety door supporting seat.

[0030] As a preferred technical solution, a convex column is provided on the spring support side wall, the convex column is perpendicular to the spring support side wall, and the support seat end of the spring is sleeved, and the spring straightening structure is formed by the convex column.

[0031] Beneficial effect: a convex column is arranged on the side wall of the spring support, and then the spring is sleeved on the convex column, so as to facilitate the installation of the spring support seat end.

[0032] As a preferred technical solution, the supporting protrusions are a plurality of protrusions arranged at intervals on the safety door.

[0033] Beneficial effect: Arranging multiple bumps at intervals can save materials.

[0034] The above-mentioned preferred technical solutions can be adopted separately. When they can be combined, two or more solutions can be combined arbitrarily. The technical solution formed by the combination will not be described in detail here, but will be included in the record of this patent in this form. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a cross-sectional view of a socket in the background technology of the present invention;

[0036] Figure 2 It is a structural exploded diagram of a socket including the spring assembly structure of the socket safety door of the present invention;

[0037] Figure 3 It is a schematic diagram of the assembly structure of a socket including the spring assembly structure of the socket safety door of the present invention;

[0038] Figure 4 is a cross-sectional view of a socket including a spring assembly structure of a socket safety door of the present invention;

[0039] Figure 5 The present invention is a three-dimensional view of a specific embodiment 1 of the safety door in the spring assembly structure of the socket safety door Figure 1 ;

[0040] Figure 6 The present invention is a three-dimensional view of a specific embodiment 1 of the safety door in the spring assembly structure of the socket safety door Figure 2 ;

[0041] The names of the components corresponding to the corresponding reference numerals in the figures are:

[0042] 101-safety door, 102-safety door support seat, 103-spring card table, 104-side wall, 1-decorative cover, 2-safety door pressure cover, 3-safety door support seat, 4-two-hole safety door, 5-first inclined plane, 6-second inclined plane, 7-connecting part, 8-supporting protrusion, 9-spring insertion hole, 10-convex column, 11-safety door stopping side wall, 12-spring supporting side wall, 13-buried wall shell, 14-three-hole safety door, 15-three-hole safety door installation groove, 16-two-hole safety door installation groove, 17-safety door installation entrance, 31-convex rib, 41-guide groove. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0045] It should be noted that the relational terms such as "first" and "second" that may appear in the specific embodiments of the present invention are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the possible statement "including one..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The present invention is further described in detail below in conjunction with embodiments.

[0049] Embodiment 1 of the spring assembly structure of the socket safety door of the present invention:

[0050] like Figure 2 , which is a socket including the spring assembly structure of the socket safety door of the present invention, and the socket includes a wall-embedded housing 13, a safety door pressure cover 2 and a decorative cover 1. A safety door support seat 3 is arranged in the wall-embedded housing 13, and a three-hole safety door installation groove 15 and a two-hole safety door installation groove 16 are arranged on the safety door support seat 3. A three-hole safety door 14 is guided and assembled in the three-hole safety door installation groove 15, and a two-hole safety door 4 is guided and assembled in the two-hole safety door installation groove 16.

[0051] The two-hole safety door 4 and the three-hole safety door 14 have a closed position and an open position in their guide stroke. The safety door pressure cover 2 is fixed to the wall-embedded housing 13 by screws, and covers the notches of the three-hole safety door installation slot 15 and the two-hole safety door installation slot 16, so as to limit the two-hole safety door 4 and the three-hole safety door 14. The decorative cover 1 is buckled on the top of the wall-embedded housing 13 and the safety door pressure cover 2, and serves as a decoration for the socket.

[0052] In this embodiment, the spring assembly structure of the socket safety door is used for the two-hole safety door 4. Figures 2 to 4As shown, the safety door support seat 3 has a safety door loading port 17, a safety door stopping side wall 11 and a spring supporting side wall 12. The safety door loading port 17 is an opening arranged at the top of the safety door support seat 3, that is, the notch of the two-hole safety door installation slot 16, and the safety door loading port 17 is for the two-hole safety door 4 to be loaded downward. The safety door stopping side wall 11 is a side wall arranged at the front end of the safety door loading port 17, corresponding to the closed position of the two-hole safety door 4, and is used to limit the two-hole safety door 4 moving to the closed position. The spring supporting side wall 12 is a side wall arranged at the rear end of the safety door loading port 17, and a boss 10 is arranged on the spring supporting side wall 12, and the boss 10 is perpendicular to the spring supporting side wall 12, and the boss 10 is provided for the support seat end of the spring to support and straighten the support seat end of the spring. In this embodiment, the boss 10 forms a side wall spring straightening structure.

[0053] like Figures 4 to 6 As shown, a guide groove 41 is provided at the middle position of the bottom of the two-hole safety door 4, and a convex rib 31 is provided at a position corresponding to the guide groove 41 on the safety door support seat 3, so that the two-hole safety door 4 can be guided and set on the safety door support seat 3. When the end surface of the front end of the two-hole safety door 4 is blocked and matched with the safety door blocking side wall 11, the two-hole safety door 4 is in a closed position.

[0054] like Figures 3 to 6 As shown, two symmetrical inclined planes are provided on the surface of the two-hole safety door 4, including a first inclined plane 5 and a second inclined plane 6. The first inclined plane 5 and the second inclined plane 6 are both inclined forward and downward, and the inclination angles of the two inclined planes are the same. The first inclined plane 5 and the second inclined plane 6 correspond to the two sockets on the decorative cover 1 and the pressure cover 2. When the two plug-in plates on the plug pass through the sockets on the decorative cover 1 and the pressure cover 2 in sequence and contact the first inclined plane 5 and the second inclined plane 6 respectively, the first inclined plane 5 and the second inclined plane 6 on the two-hole safety door 4 can guide the plug-in plates to slide forward. As a result, the two-hole safety door 4 slides backward as a whole, and the two-hole safety door 4 slides from the closed position to the open position. After the two-hole safety door 4 slides to the open position, the two plug-in plates on the plug can contact the live wire and the neutral wire located below the two-hole safety door 4, so as to realize the conductive connection between the plug and the socket.

[0055] like Figure 6As shown, the two-hole safety door 4 also includes a connecting portion 7 located between the first inclined surface 5 and the second inclined surface 6. The connecting portion 7 is a rectangular parallelepiped extending in the front-to-back direction. A supporting protrusion 8 is provided at the front end of the connecting portion 7. The supporting protrusion 8 is located on the side close to the safety door loading port 17, that is, close to the notch of the two-hole safety door installation slot 16. The supporting protrusion 8 is a continuous rib extending in the left-right direction, and the cross section of the supporting protrusion 8 is semicircular. The arc surface of the supporting protrusion 8 is used to support the safety door stop side wall 11. The arc surface and the safety door stop side wall 11 form a contact line perpendicular to the loading direction of the two-hole safety door 4. The arc surface is set to facilitate the demoulding of the two-hole safety door 4. A circular hole facing the spring support side wall 12 is provided in the center of the connecting portion 7, and the circular hole forms a spring insertion hole 9. One end of the spring insertion hole 9 is closed for the safety door top pressing end of the spring to be inserted, so as to straighten the safety door top pressing end of the spring. In this embodiment, the spring insertion hole 9 forms a safety door side spring straightening structure.

[0056] When installing the two-hole safety door 4, firstly, the supporting end of the spring is sleeved on the convex column 10 on the spring supporting side wall 12, so that the safety door pressing end of the spring is installed in the spring insertion hole 9 of the connecting part 7, and then the two-hole safety door 4 is pressed downward to be inserted downward into the safety door insertion opening 17. Since the two-hole safety door 4 is provided with a supporting protrusion 8 on one side close to the safety door stopping side wall 11, the supporting protrusion 8 enables the two-hole safety door 4 to be tilted and supported on the safety door stopping side wall 11 when the two-hole safety door 4 is in the closed position, thereby reducing the difference between the tilt angle of the safety door and the tilt angle of the spring, thereby reducing the component force of the safety door toward the safety door installation opening, making it difficult for the safety door to arch up, and the safety door is stable after installation, thereby ensuring the installation efficiency.

[0057] Embodiment 2 of the spring assembly structure of the socket safety door of the present invention:

[0058] The difference between this embodiment and the embodiment 1 is that in the embodiment 1, a support protrusion 8 is provided on the side of the safety door close to the safety door stop side wall 11. In this embodiment, the support protrusion 8 is provided on the safety door stop side wall 11, and the support protrusion 8 is located on the side close to the safety door installation opening; when the safety door is in the closed position, the support protrusion 8 makes the safety door tiltedly supported on the safety door stop side wall 11, so that the side of the safety door close to the safety door stop side wall 11 is closer to the safety door installation opening than the other side.

[0059] In other embodiments, support protrusions 8 can be provided on both the safety door stopping side wall 11 and the side of the safety door close to the safety door stopping side wall 11, as long as it can be ensured that when the safety door is in the closed position, the safety door is tilted and supported on the safety door stopping side wall 11, so that the side of the safety door close to the safety door stopping side wall 11 is closer to the safety door installation entrance than the other side.

[0060] Embodiment 3 of the spring assembly structure of the socket safety door of the present invention:

[0061] The difference between this embodiment and the first embodiment is that in the first embodiment, a support protrusion 8 is provided on the side of the safety door close to the safety door stop side wall 11. In this embodiment, the side of the safety door close to the safety door stop side wall 11 has an inclined support surface, and when the safety door is in the closed position, the inclined support surface makes the safety door obliquely supported on the safety door stop side wall 11, so that the side of the safety door close to the safety door stop side wall 11 is closer to the safety door loading port than the other side. In other embodiments, the inclined support surface can be provided on the safety door stop side wall 11, or the inclined support surface can be provided on both the safety door stop side wall 11 and the side of the safety door close to the safety door stop side wall 11.

[0062] Embodiment 4 of the spring assembly structure of the socket safety door of the present invention:

[0063] The difference between this embodiment and embodiment 1 is that in embodiment 1, the supporting protrusion is a continuous rib extending in the left-right direction. In this embodiment, the supporting protrusion is a plurality of protrusions arranged at intervals on the safety door, and the arcuate surfaces of the plurality of protrusions can support the side wall of the safety door.

[0064] Embodiment 5 of the spring assembly structure of the socket safety door of the present invention:

[0065] The difference between this embodiment and embodiment 1 is that in embodiment 1, the cross section of the supporting protrusion is semicircular. In this embodiment, the cross section of the supporting protrusion is rectangular.

[0066] Embodiment 6 of the spring assembly structure of the socket safety door of the present invention:

[0067] The difference between this embodiment and embodiment 1 is that in embodiment 1, the boss 10 forms a side wall spring straightening structure. In this embodiment, two spring clamps are provided on the spring support side wall, and the spring is installed between the two spring clamps to straighten the support seat end of the spring. The spring clamps on the spring support side wall form a side wall spring straightening structure.

[0068] Embodiment 7 of the spring assembly structure of the socket safety door of the present invention:

[0069] The difference between this embodiment and embodiment 1 is that in embodiment 1, the spring insertion hole 9 forms a safety door side spring straightening structure. In this embodiment, a convex column is provided on the connection portion of the safety door, and the safety door pressing end of the spring is sleeved on the convex column. The convex column on the safety door forms a safety door side spring straightening structure.

[0070] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. The patent protection scope of the present application shall be based on the claims. All equivalent structural changes made using the description and drawings of the present application shall be included in the protection scope of the present application.

Claims

1. The spring assembly structure of the socket safety door includes: Safety door, safety door support seat and spring; A safety door, the guide is arranged on the safety door support seat, and has a closed position and an open position in the guide stroke; A safety door support seat, comprising a safety door installation entrance, a safety door blocking side wall and a spring supporting side wall; The safety door installation port is arranged at the top of the safety door support seat for the safety door to be installed downwards; The safety door stopper side wall corresponds to the closed position of the safety door and is used to limit the safety door moving to the closed position; A spring support side wall is used to support the support seat end of the spring; A spring, pressed between the safety door and the spring-supported side wall, for applying a force to the safety door to move toward a closed position; Features: The safety door stopping side wall and / or the safety door on a side close to the safety door stopping side wall are provided with a supporting protrusion, and the supporting protrusion is located on a side close to the safety door installation opening; When the safety door is in the closed position, the support protrusion makes the safety door tilted and supported on the safety door stop side wall, so that the side of the safety door close to the safety door stop side wall is closer to the safety door installation opening than the other side; or: The safety door stopping side wall and / or a side of the safety door close to the safety door stopping side wall has an inclined supporting surface; When the safety door is in the closed position, the inclined support surface allows the safety door to be inclinedly supported on the safety door blocking side wall, so that the side of the safety door close to the safety door blocking side wall is closer to the safety door installation opening than the other side; A guide groove is arranged in the middle of the bottom of the safety door, and a convex rib is arranged horizontally on the safety door support seat at a position corresponding to the guide groove so that the safety door can be guided and arranged on the safety door support seat.

2. The spring assembly structure of the socket safety door according to claim 1, characterized in that: The supporting protrusion is arranged on one side of the safety door close to the safety door stopping side wall; The supporting surface of the supporting protrusion used to support the safety door stop side wall is an arc-shaped surface, and the arc-shaped surface is used to form a contact line with the safety door stop side wall that is perpendicular to the installation direction of the safety door.

3. The spring assembly structure of the socket safety door according to claim 2, characterized in that: The cross section of the supporting protrusion is semicircular.

4. The spring assembly structure of the socket safety door according to claim 1, 2 or 3, characterized in that: The safety door is provided with a safety door side spring straightening structure.

5. The spring assembly structure of the socket safety door according to claim 4, characterized in that: A spring insertion hole is provided on one side of the safety door close to the spring, and the safety door side spring straightening structure is formed by the spring insertion hole.

6. The spring assembly structure of the socket safety door according to claim 1, 2 or 3, characterized in that: The spring-supported side wall is provided with a side wall spring straightening structure.

7. The spring assembly structure of the socket safety door according to claim 6, characterized in that: The spring support side wall is provided with a convex column, which is perpendicular to the spring support side wall and is sleeved on the support seat end of the spring. The side wall spring straightening structure is formed by the convex column.

8. The spring assembly structure of the socket safety door according to claim 2, characterized in that: The supporting protrusions are a plurality of protrusions arranged at intervals on the safety door.

Images