JP7117979B2 - Electrical connection structure and rotation prevention member - Google Patents

Description

The present invention comprises an electrical outlet and an electrical plug connected to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The present invention relates to an electrical connection structure in which the receptacle has a locking portion that locks the insertion blade in the removal-preventing position at the removal-preventing position, and a rotation-preventing member used in the electrical connection structure.

In such an electrical connection structure, the pair of insertion blades of the plug are inserted into the plug insertion opening at the insertion/removal position, and then the plug is rotated to position the pair of insertion blades at the retaining position. It can avoid the trouble of the plug coming out of the outlet.
However, an inexperienced user or the like rotates the plug so that it is positioned at the insertion/removal position and removes (pulls out) the plug, which originally does not need to be removed. Trouble may occur.

In order to avoid the occurrence of such troubles, the plug is provided with a locking portion that is locked to prevent the plug from moving toward the insertion/removal position when the plug is positioned at the removal prevention position. (See Patent Document 1, for example).

In order to avoid the above-mentioned troubles, the receptacle may be provided with a locking part that prevents the plug from moving toward the insertion/removal position when the plug is positioned at the removal prevention position. (See Patent Document 2, for example).

JP 2010-161027 A JP 2010-160996 A

Conventionally, the plug or the receptacle is provided with a locking portion that is locked to prevent the plug from being pulled out toward the insertion/removal position from moving toward the insertion/removal position. and needs improvement.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electrical connection structure capable of regulating rotation of a plug at a removal-preventing position toward an insertion/removal position with a simple structure. in that it provides

The electrical connection structure of the present invention comprises an electrical outlet and an electrical plug connected to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The socket includes a locking portion that locks the insertion blade in the locking position at the locking position, and is characterized by:
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position ;
An outlet case that can be freely attached to a wall surface and that includes the outlet is provided with an insertion surface portion that forms the plug insertion port in a posture that stands up from a guide surface portion that is in a posture along the wall surface,
It is in that the said receiving part is comprised by the said guide surface part .

That is, the rotation-preventing member is attached to the plug positioned at the detachment-preventing position in the set attachment mode. The rotation preventing member attached in the set attachment mode is in a state of being unable to rotate with respect to the attached plug in the rotation operation direction of the plug and to be in a state of being unable to move in the receptacle separating direction away from the receptacle.

When the rotation-preventing member is attached to the plug in the set attachment mode, the rotation of the rotation-preventing member in the direction of rotating the plug from the removal-preventing position toward the insertion/removal position is restricted by the receiving portion. As a result, it is possible to prevent the plug from being turned to the insertion/removal position when it is positioned at the removal prevention position. can be avoided.

Then, the rotation preventing member is attached to the plug in the set attachment mode, and the rotation of the rotation prevention member attached in the set attachment mode is received by the receiving portion, thereby positioning the plug at the retaining position. Since the plug is restricted from being rotated to the insertion/removal position, the plug at the retaining position can be rotated toward the insertion/removal position without modifying the plug or the receptacle into a complicated configuration. can be regulated with a simple configuration.

In short, according to the characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug at the retaining position toward the insertion/removal position with a simple configuration.

In addition , by utilizing the fact that an outlet case that can be freely attached to a wall surface and has an outlet has an insertion surface portion that forms a plug insertion opening in a form that rises from a guide surface portion that is positioned along the wall surface, the receptacle can be used. A stop portion is configured by the guide surface portion.

In other words, the outlet case to be mounted on the wall surface has the insertion surface portion forming the plug insertion port in a form that stands up from the guide surface portion along the wall surface, so that the plug can be inserted into the plug insertion port forward and backward. When the plug is rotated, by protecting the finger that operates the plug by the guide surface, it is possible to prevent the finger from coming into contact with the wall surface and being damaged.
By utilizing the fact that the outlet case has the guide surface portion, the receiving portion is constituted by the guide surface portion.

Since the outlet case having the insertion surface portion and the guide surface portion in the form described above is generally available on the market, the configuration using the outlet case available on the market allows the plug at the retaining position to face the insertion/removal position. can be regulated to be rotated.

In short, according to the characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug at the removal-preventing position toward the insertion/removal position in a configuration using a commercially available outlet case.

The electrical connection structure of the present invention comprises an electrical outlet and an electrical plug connected to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The socket includes a locking portion that locks the insertion blade in the locking position at the locking position, and is characterized by:
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
The plug is flat and wide in the direction in which the pair of insertion blades are arranged,
The rotation-preventing member comprises a pair of structural bodies arranged in a thickness direction orthogonal to the arrangement direction of the plugs,
The pair of structural members are fastened with special screws in a state of holding the plug.

That is, the rotation-preventing member is attached to the plug positioned at the detachment-preventing position in the set attachment mode. The rotation preventing member attached in the set attachment mode is in a state of being unable to rotate with respect to the attached plug in the rotation operation direction of the plug and to be in a state of being unable to move in the receptacle separating direction away from the receptacle.
When the rotation-preventing member is attached to the plug in the set attachment mode, the rotation of the rotation-preventing member in the direction of rotating the plug from the removal-preventing position toward the insertion/removal position is restricted by the receiving portion. As a result, it is possible to prevent the plug from being turned to the insertion/removal position when it is positioned at the removal prevention position. can be avoided.
Then, the rotation preventing member is attached to the plug in the set attachment mode, and the rotation of the rotation prevention member attached in the set attachment mode is received by the receiving portion, thereby positioning the plug at the retaining position. Since the plug is restricted from being rotated to the insertion/removal position, the plug at the retaining position can be rotated toward the insertion/removal position without modifying the plug or the receptacle into a complicated configuration. can be regulated with a simple configuration.
In short, according to the characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug at the retaining position toward the insertion/removal position with a simple configuration.
In addition , considering that the plug is flat and wide in the direction in which the pair of insertion blades are arranged, the rotation-preventing member is arranged in the thickness direction perpendicular to the direction in which the pair of insertion blades are arranged in the plug. A pair of structural bodies are arranged side by side, and the pair of structural bodies are fastened with a special screw in a state in which the plug is sandwiched.

In addition, since the tool engaging recess formed in the head of the special screw has a special shape such as a chrysanthemum or star shape, it is not possible to engage a generally used flathead screwdriver or Phillips screwdriver. A general user cannot loosen the special screw, and as a result, the rotation preventing member cannot be removed from the plug.

In short, according to the characteristic configuration of the electrical connection structure of the present invention, the rotation preventing member is prevented from being removed from the plug, and the rotation of the plug at the removal preventing position toward the insertion/removal position is more accurately controlled. can be regulated to

The electrical connection structure of the present invention comprises an electrical outlet and an electrical plug connected to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The socket includes a locking portion that locks the insertion blade in the locking position at the locking position, and is characterized by:
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
wherein the plug has a projecting portion that spreads outward at an end portion away from the pair of insertion blades,
The rotation blocking member is mounted so as not to move in the outlet separation direction by including a locked portion that is locked to the protrusion so as not to move in the outlet separation direction.

That is, the rotation-preventing member is attached to the plug positioned at the detachment-preventing position in the set attachment mode. The rotation preventing member attached in the set attachment mode is in a state of being unable to rotate with respect to the attached plug in the rotation operation direction of the plug and to be in a state of being unable to move in the receptacle separating direction away from the receptacle.
When the rotation-preventing member is attached to the plug in the set attachment mode, the rotation of the rotation-preventing member in the direction of rotating the plug from the removal-preventing position toward the insertion/removal position is restricted by the receiving portion. As a result, it is possible to prevent the plug from being turned to the insertion/removal position when it is positioned at the removal prevention position. can be avoided.
Then, the rotation preventing member is attached to the plug in the set attachment mode, and the rotation of the rotation prevention member attached in the set attachment mode is received by the receiving portion, thereby positioning the plug at the retaining position. Since the plug is restricted from being rotated to the insertion/removal position, the plug at the retaining position can be rotated toward the insertion/removal position without modifying the plug or the receptacle into a complicated configuration. can be regulated with a simple configuration.
In short, according to the characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug at the retaining position toward the insertion/removal position with a simple configuration.
In addition , in view of the fact that the plug is provided with a projecting portion that expands outward at the end on the side away from the pair of insertion blades, the rotation preventing member is provided with a projecting portion that cannot move in the receptacle-separating direction. The anti-rotation member is attached to the plug so as not to move in the receptacle separation direction.

By the way, the configuration in which the plug has a projecting portion that spreads outward at the end on the side away from the pair of insertion blades is the configuration generally available in commercially available plugs.

In short, according to the characteristic configuration of the electrical connection structure of the present invention, the rotation blocking member can be attached to the plug so as not to move in the receptacle-separating direction with a simple configuration that utilizes the configuration of the plug.

The electrical connection structure of the present invention comprises an electrical outlet and an electrical plug connected to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The socket includes a locking portion that locks the insertion blade in the locking position at the locking position, and is characterized by:
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
The plug has a configuration in which uneven portions arranged in the outlet separation direction are provided on an outer surface portion,
The rotation-preventing member is mounted immovably in the outlet-separating direction by including a concave-convex portion that is engaged with the projecting portion so as not to move in the outlet-separating direction.

That is, the rotation-preventing member is attached to the plug positioned at the detachment-preventing position in the set attachment mode. The rotation preventing member attached in the set attachment mode is in a state of being unable to rotate with respect to the attached plug in the rotation operation direction of the plug and to be in a state of being unable to move in the receptacle separating direction away from the receptacle.
When the rotation-preventing member is attached to the plug in the set attachment mode, the rotation of the rotation-preventing member in the direction of rotating the plug from the removal-preventing position toward the insertion/removal position is restricted by the receiving portion. As a result, it is possible to prevent the plug from being turned to the insertion/removal position when it is positioned at the removal prevention position. can be avoided.
Then, the rotation preventing member is attached to the plug in the set attachment mode, and the rotation of the rotation prevention member attached in the set attachment mode is received by the receiving portion, thereby positioning the plug at the retaining position. Since the plug is restricted from being rotated to the insertion/removal position, the plug at the retaining position can be rotated toward the insertion/removal position without modifying the plug or the receptacle into a complicated configuration. can be regulated with a simple configuration.
In short, according to the characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug at the retaining position toward the insertion/removal position with a simple configuration.
In addition , in view of the fact that the plug has uneven portions arranged in the outlet separation direction on the outer surface portion, the rotation prevention member is provided with an uneven portion that is locked to the uneven portion so as not to move in the outlet separation direction. so that the rotation-preventing member is attached to the plug so as not to move in the receptacle-separating direction.

Incidentally, the configuration in which the plug has uneven portions arranged in the receptacle-separating direction on the outer surface portion is the configuration generally available in commercially available plugs.

In short, according to the characteristic configuration of the electrical connection structure of the present invention, the rotation blocking member can be attached to the plug so as not to move in the receptacle-separating direction with a simple configuration that utilizes the configuration of the plug.

The electrical connection structure of the present invention comprises an electrical outlet and an electrical plug connected to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The socket includes a locking portion that locks the insertion blade in the locking position at the locking position, and is characterized by:
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
The outlet is connected to one of a neutral wire and a pair of voltage wires in a single-phase three-wire commercial power supply,
The plug is connected to wiring for power supply from the power generation unit.

That is, the rotation-preventing member is attached to the plug positioned at the detachment-preventing position in the set attachment mode. The rotation preventing member attached in the set attachment mode is in a state of being unable to rotate with respect to the attached plug in the rotation operation direction of the plug and to be in a state of being unable to move in the receptacle separating direction away from the receptacle.
When the rotation-preventing member is attached to the plug in the set attachment mode, the rotation of the rotation-preventing member in the direction of rotating the plug from the removal-preventing position toward the insertion/removal position is restricted by the receiving portion. As a result, it is possible to prevent the plug from being turned to the insertion/removal position when it is positioned at the removal prevention position. can be avoided.
Then, the rotation preventing member is attached to the plug in the set attachment mode, and the rotation of the rotation prevention member attached in the set attachment mode is received by the receiving portion, thereby positioning the plug at the retaining position. Since the plug is restricted from being rotated to the insertion/removal position, the plug at the retaining position can be rotated toward the insertion/removal position without modifying the plug or the receptacle into a complicated configuration. can be regulated with a simple configuration.
In short, according to the characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug at the retaining position toward the insertion/removal position with a simple configuration.
Also , a plug connected to wiring for power supply from a power generation unit such as a fuel cell or a solar power generator is connected to one of a neutral wire and a pair of voltage wires in a single-phase three-wire commercial power source. Since it is possible to restrict the rotation of the plug at the removal prevention position to the insertion/removal position when connecting to the outlet, it is possible to avoid the trouble of accidentally removing (pulling out) the plug from the outlet.

That is, when a power generation unit such as a fuel cell or a solar power generator is configured to supply a small amount of power, the plug connected to the wiring for power supply from the power generation unit is connected to a single-phase three-wire system. It will be connected to an outlet that is connected to the neutral wire and one of a pair of voltage wires in the commercial power supply.
In such a case, the rotation of the rotation-preventing member attached to the plug in the set attachment mode is received by the receiving portion, thereby restricting the rotation of the plug from the removal-preventing position to the insertion/removal position. By doing so, it is possible to avoid the trouble of accidentally disconnecting the plug from the outlet (pulling it out).

In short, according to the characteristic configuration of the electrical connection structure of the present invention, the plug connected to the power supply wiring from the power generation unit is connected to the neutral wire and the pair of voltage wires of a single-phase three-wire commercial power source. It is possible to avoid the trouble of accidentally removing the plug from the outlet when connecting to the outlet connected to one side of the plug.
A further characteristic configuration of the electrical connection structure of the present invention is that an outlet case that can be freely mounted on a wall surface and that includes the outlet has an insertion surface portion forming the plug insertion port erected from a guide surface portion oriented along the wall surface. Prepared in the form of a posture,
It is in that the said receiving part is comprised by the said guide surface part.
That is, an outlet case that can be freely attached to a wall surface and has an outlet has an insertion surface portion forming a plug insertion opening in a form that rises from a guide surface portion along the wall surface. A stop portion is configured by the guide surface portion.
In other words, the outlet case to be mounted on the wall surface has the insertion surface portion forming the plug insertion port in a form that stands up from the guide surface portion along the wall surface, so that the plug can be inserted into the plug insertion port forward and backward. When the plug is rotated, by protecting the finger that operates the plug by the guide surface, it is possible to prevent the finger from coming into contact with the wall surface and being damaged.
By utilizing the fact that the outlet case has the guide surface portion, the receiving portion is constituted by the guide surface portion.
Since the outlet case having the insertion surface portion and the guide surface portion in the form described above is generally available on the market, the configuration using the outlet case available on the market allows the plug at the retaining position to face the insertion/removal position. can be regulated to be rotated.
In short, according to the further characteristic configuration of the electrical connection structure of the present invention, it is possible to restrict the rotation of the plug in the retaining position toward the insertion/removal position in a configuration using a commercially available outlet case.

By using the rotation blocking member of the present invention in the electrical connection structure, it is possible to restrict the rotation of the plug at the removal prevention position toward the insertion/removal position with a simple structure.

Schematic diagram of the electrical installation Perspective view of outdoor outlet The front view which shows the form of the insertion slot of an outlet. Longitudinal cross-sectional view showing a locking structure for retaining an outlet Front view showing a state in which the plug is inserted into the insertion/removal position of the insertion port Front view showing a state in which the plug is rotated to the locking position of the insertion port The front view which shows the state which mounted|wore the rotation prevention member of 1st Embodiment. FIG. 2 is a cross-sectional plan view showing the configuration of the rotation blocking member of the first embodiment; A cross-sectional plan view showing the configuration of the rotation blocking member of the second embodiment. Partially cutaway side view showing the configuration of the rotation blocking member of the second embodiment. Side view of the third embodiment Front view of the third embodiment

[First Embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
(Overall configuration of electrical equipment for houses)
As shown in FIG. 1, electrical equipment that receives electricity from a commercial power source (power system) A is provided. In the present embodiment, the electric equipment of a general household will be described as a typical electric equipment, but the electric equipment of a hospital, a factory, a hotel, etc. can also be implemented in the same manner.

In this electrical equipment, a power meter 2 is connected to a commercial power supply A via a lead-in line 1A, and a distribution board 3 installed inside a house K is connected to the power meter 2 via a connection line 1B. there is
The distribution board 3 is provided with a main breaker 4 that cuts off the supply of electricity in response to the detection of an electric leakage. is connected to a branch breaker 6, and a house wiring 7 is connected to each of the plurality of branch breakers 6. FIG.

A distribution board 3 is connected to a commercial power source A in a single-phase three-wire system (200 V), and each of a plurality of branch lines 5 is connected to one of a neutral wire and a pair of voltage wires in the single-phase three-wire system. A plurality of house wirings 7, which are provided in the form of a single-phase two-wire system (100 V) and connected to the branch line 5 via the branch breaker 6, are set to a single-phase two-wire system (100 V). It is configured.

Some of the multiple house wirings 7 are connected to power consuming devices (for example, lighting equipment, indoor outlets, etc.) 9 installed indoors, and some of the multiple house wirings 7 are connected to , an outdoor outlet 10 installed outdoors and an indoor outlet 11 installed indoors are connected. The outdoor outlet 10 corresponds to the electrical outlet P of the present invention.

A power supply unit E such as a fuel cell or a solar power generator is installed outdoors, and a power supply cable 12 (corresponding to the "wiring for power supply" of the present invention) extending from the power supply unit E is provided at the tip of the power supply cable 12. A power plug 13 is connected to the outdoor outlet 10 . The power plug 13 corresponds to the electrical plug Q of the present invention.
A power receiving plug 15 at the tip of a power receiving wire 14 extending from a power consuming device (for example, a lighting device such as a night light) 9 is connected to the indoor outlet 11 .

Therefore, in this embodiment, the electric power generated from the power supply unit E is supplied to the electric power consumption device 9 connected to the indoor outlet 11 .
In other words, the power consuming device 9 connected to the indoor outlet 11 is configured to operate mainly on the power generated from the power supply section E, and to supplement the shortage of power with the power from the commercial power source A. .
Incidentally, the electric power supply cable 12 extending from the power supply section E is provided with an individual breaker 16 for preventing overcurrent and electric leakage.

(Details of outdoor outlets)
As shown in FIG. 2, an outdoor outlet 10 is provided inside an outlet case D installed in a posture along a wall surface W of a house K. As shown in FIG.
The outlet case D has an insertion surface portion Ds that forms the plug insertion port 17 in a posture that stands up from the guide surface portion Da along the wall surface W, and is attached to the wall surface W in a posture that the insertion surface portion Ds faces downward. is configured as
That is, the outlet case D includes a base portion Dt which forms a guide surface portion Da and is mounted in contact with the wall surface W, and a triangular cover portion Dv which protrudes forward toward the lower end side in a side view. It has

The insertion surface portion Ds is provided in a state of closing the opening on the lower side of the cover portion Dv, and the guide surface portion Da is provided on the lower side of the insertion surface portion Ds.
The exemplified outlet case D is configured to have a canopy portion Dh projecting downward from the insertion surface portion Ds at the lower end of the cover portion Dv.
Although the angle between the insertion surface portion Ds and the guide surface portion Da is an angle larger than 90 degrees (for example, 100 degrees), in the first embodiment, the insertion surface portion Ds and the guide surface portion Da is described as being 90 degrees. The same applies to a second embodiment and a third embodiment which will be described later.

As clearly shown in FIG. 3, a pair of plug insertion openings 17 are provided between an insertion/removal position Fa for inserting/removing a pair of insertion blades 13a of the power plug 13 and a retaining position Fb for retaining the insertion blades 13a. The insertion blade 13a is formed in a curved shape so that it can be reciprocated by rotating the power plug 13 forward and backward.
Therefore, the power plug 13 inserted into the plug insertion port 17 can be rotated only between the insertion/removal position Fa and the retaining position Fb, and can be rotated in a direction away from the insertion/removal position Fa beyond the retaining position Fb. cannot be operated manually.

As shown in FIG. 4, the outdoor outlet 10 has a locking portion Ba that locks the insertion blade 13a in a locking position Fb.
That is, the outdoor outlet 10 has a pair of engaging blades 18 with which the pair of insertion blades 13a of the power plug 13 are separately engaged. Each of the pair of engaging blades 18 has a U-shaped cross section and is curved along the plug insertion opening 17 .
Incidentally, the pair of opposing blade portions 18a of each of the engaging blades 18 having a U-shaped cross section are elastically displaceable in directions toward and away from each other and elastically return to the state of approaching each other. It is configured.

A position corresponding to the retaining position Fb of the pair of engaging blades 18 is engaged with a retaining engagement hole Bc (see FIG. 2) formed in the insertion blade 13a to retain the pair of insertion blades 13a. A protruding engagement portion Ba that engages is formed on one side of the pair of opposed blade portions 18a.
Although not shown, both ends of the locking portion Ba in the longitudinal direction of the plug insertion opening 17 are tilted outward toward the ends when viewed in the longitudinal direction of the opposing blade portion 18a. By moving the insertion blade 13a in the longitudinal direction of the plug insertion port 17, the locking portion Ba can be engaged with and disengaged from the locking engagement hole Bc.

Therefore, as shown in FIG. 5, the power plug 13 is inserted into the outdoor outlet 10 at the insertion/removal position Fa with respect to the plug insertion port 17, and then, as shown in FIG. The power plug 13 is configured to be connected to the outdoor outlet 10 in a locked state by rotating to the locking position Fb with respect to the insertion port 17 .

When removing the power plug 13 from the outdoor outlet 10, the power plug 13 is rotated from the removal prevention position Fb to the insertion/removal position Fa, and the power plug 13 is removed from the outdoor outlet 10. .
Since the guide surface portion Da is positioned on the side of the insertion surface portion Ds where the wall surface W exists, it is possible to prevent the fingers of the user rotating the power plug 13 in forward and reverse directions from coming into contact with the wall surface W. Therefore, the plug 13 can be rotated satisfactorily.

(Regarding the rotation blocking member)
As shown in FIG. 7, a rotation preventing member G is provided that can be freely mounted in a set mounting form with respect to the power plug 13 in a state in which the pair of insertion blades 13a are positioned at the retaining position Fb.
The set mounting form is a form in which the rotation preventing member G is mounted on the power plug 13 in a state in which the power plug 13 cannot be rotated in the rotating operation direction and cannot be moved in the outlet separation direction away from the outdoor outlet 10 .
Further, the guide surface portion Da constitutes a receiving portion H that abuts and restricts the rotation of the rotation preventing member G in the direction in which the power plug 13 at the removal preventing position Fb is rotated toward the insertion/removal position Fa. provided in the form

In this embodiment, the power plug 13 has a flat shape that is wide in the direction in which the pair of insertion blades 13a are arranged, and has an outer side at the end on the side away from the pair of insertion blades 13a. It is configured in a form provided with a protruding portion 13A that spreads out.

The rotation blocking member G includes a pair of plate-like structures 20 arranged in a thickness direction perpendicular to the direction in which the pair of insertion blades 13a of the power plug 13 are arranged. A pair of special screws 21 are used to hold the plug 13 for use.
That is, the special screw 21 is provided so as to pass through one side of the pair of constituent bodies 20 and be screwed into the other side of the pair of constituent bodies 20 .
Incidentally, the special screw 21 has a tool-engaging concave portion 21a formed in the operation head in a special shape such as a star shape or a chrysanthemum shape, and is turned by a special tool. It will be.

Further, the rotation blocking member G is provided with a pair of locked portions 22 that are locked to the projecting portion 13A so as not to move in the outlet separation direction away from the outdoor outlet 10, so that the rotation prevention member G is immovably mounted in the outlet separation direction. It is
That is, the pair of locked portions 22 are formed as tubular bodies through which the special screws 21 pass, and are provided in a form sandwiched between the pair of constituent bodies 20 .
Incidentally, the rotation-preventing member G attached to the power plug 13 in the set attachment mode is configured such that the pair of engaged portions 22 are brought into contact with the power plug 13, or the rotation-preventing member G is attached to the insertion surface portion Ds. It is configured such that movement in a direction approaching the outdoor outlet 10 is regulated by the abutment.

Further, in the present embodiment, the lower end of the rotation blocking member G abuts against the guide surface Da, thereby preventing rotation of the power plug 13 at the retaining position Fb toward the insertion/removal position Fa. Rotation of the member G is abutted and regulated.

As described above, the rotation preventing member G can be attached to the power supply plug 13 positioned at the removal preventing position Fb in the set mounting configuration, and the rotation preventing portion G can be rotated toward the insertion/removal position Fa. Since the power supply plug 13 is restricted from being received by the receiving portion H, the power supply plug 13 is restricted from being rotated from the removal prevention position Fb to the insertion/removal position Fa. to be done).

[Second embodiment]
Next, a second embodiment will be described. This second embodiment shows another form in which the rotation blocking member G is made immovable in the direction of separation from the outlet in the set mounting form. The same reference numerals are assigned to members similar to those in the form, and detailed description thereof will be omitted.

That is, as shown in FIGS. 9 and 10, the power plug 13 is configured in such a manner that the outer surface thereof is provided with uneven portions Ua arranged in the outlet separation direction.
The rotation-preventing member G is mounted immovably in the outlet-separating direction by providing the concave-convex portion Ub that is engaged with the concave-convex portion Ua so as not to move in the outlet-separating direction.
That is, in the present embodiment, the concave-convex portion Ub is formed on the inner surface side of the pair of structural bodies 20 .
Incidentally, in the present embodiment, the engagement of the concave-convex portion Ub with the concave-convex portion Ua prevents the rotation preventing member G from moving toward the power plug 13 toward the outdoor outlet 10. It is

A pair of structures 20 are fastened by a pair of special screws 21 in a state of sandwiching the power plug 13 , and a cylindrical body 23 through which the special screws 21 pass is provided between the pair of structures 20 . It is provided in a form sandwiched between.

Also in this second embodiment, the rotation blocking member G is attached to the power source plug 13 positioned at the removal preventing position Fb in the set mounting configuration, and the rotation blocking portion G is rotated toward the insertion/removal position Fa. Since the movement of the power plug 13 is restricted by the receiving portion H, the turning operation of the power plug 13 from the removal prevention position Fb to the insertion/removal position Fa is restricted. Pulling out (removing) can be suppressed.

[Third Embodiment]
Next, a third embodiment will be described. This third embodiment shows another form of the receiving portion H, and members similar to those of the first embodiment are denoted by the same reference numerals and detailed descriptions thereof. Description is omitted.

That is, as shown in FIGS. 11 and 12, the outlet case D is configured without the guide surface portion Da.
A projecting body 24 forming a receiving portion H is provided on the wall surface W at a position below the outlet case D by fixing means such as screwing or adhesion.
The rotation of the rotation blocking member G toward the insertion/removal position Fa is restricted by the receiving portion H formed by the projecting body 24 .

Also in the third embodiment, the rotation blocking member G is attached to the power source plug 13 positioned at the removal prevention position Fb in the set mounting configuration, and the rotation blocking portion G is rotated toward the insertion/removal position Fa. Since the movement of the power plug 13 is restricted by the receiving portion H, the turning operation of the power plug 13 from the removal prevention position Fb to the insertion/removal position Fa is restricted. Pulling out (removing) can be suppressed.

[Other alternative embodiments]
Other embodiments are listed below.
(1) In the first to third embodiments, when connecting the power supply plug 13 as the electricity plug Q to the outdoor outlet 10 as the electricity outlet P, the rotation preventing member G and the receiving member Although the case where the stop portion H is attached has been illustrated, the present invention can also be applied to cases where various electrical plugs Q are connected to other electrical outlets P. As shown in FIG.

(2) In the above-described first and second embodiments, the guide surface portion Da constitutes the receiving portion H in the case where the outlet case D includes the guide surface portion Da. In the case where Da is provided, a separate member forming the receiving portion H may be fixed to the guide surface portion Da.

(3) In the first to third embodiments, the outdoor outlet 10 as the electrical outlet P is connected to one of the neutral wire and the pair of voltage wires in the single-phase three-wire commercial power source A. Although the case of the form in which the electric outlet P is connected to the neutral line and the pair of voltage lines of the single-phase three-wire commercial power source A can be similarly implemented.

(4) In the first to third embodiments described above, a commercially available plug is used as the power plug 13 (plug Q). It may also be implemented in a form in which a dedicated power supply plug 13 (plug Q) is manufactured.

It should be noted that the configurations disclosed in the above embodiments (including other embodiments, the same shall apply hereinafter) can be applied in combination with configurations disclosed in other embodiments as long as there is no contradiction. The embodiments disclosed in this specification are exemplifications, and the embodiments of the present invention are not limited thereto, and can be modified as appropriate without departing from the object of the present invention.

13A Protruding portion 13a Insertion blade 17 Plug insertion port 20 Structure 21 Special screw 22 Locked portion A Commercial power supply Ba Locking portion D Outlet case Da Guide surface portion Ds Insertion surface portion Fa Insertion/removal position Fb Retaining position G Rotation prevention member H Receiving portion P Outlet Q Plug Ua Uneven portion Ub Uneven portion

Claims (7)

Consists of an electrical outlet and an electrical plug that connects to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The electrical connection structure, wherein the outlet includes a locking portion that locks the insertion blade in the locking position at the locking position,
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position ;
An outlet case that can be freely attached to a wall surface and that includes the outlet is provided with an insertion surface portion that forms the plug insertion port in a posture that stands up from a guide surface portion that is in a posture along the wall surface,
The electrical connection structure , wherein the receiving portion is configured by the guide surface portion . Consists of an electrical outlet and an electrical plug that connects to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The electrical connection structure, wherein the outlet includes a locking portion that locks the insertion blade in the locking position at the locking position,
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
The plug is flat and wide in the direction in which the pair of insertion blades are arranged,
The rotation-preventing member comprises a pair of structural bodies arranged in a thickness direction orthogonal to the arrangement direction of the plugs,
The electrical connection structure , wherein the pair of constituent bodies are fastened with a special screw in a state of sandwiching the plug . Consists of an electrical outlet and an electrical plug that connects to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The electrical connection structure, wherein the outlet includes a locking portion that locks the insertion blade in the locking position at the locking position,
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
wherein the plug has a projecting portion that spreads outward at an end portion away from the pair of insertion blades,
The electrical connection structure , wherein the rotation blocking member is mounted so as to be immovable in the outlet separation direction by including a locked portion that is locked to the protrusion so as to be immovable in the outlet separation direction . Consists of an electrical outlet and an electrical plug that connects to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The electrical connection structure, wherein the outlet includes a locking portion that locks the insertion blade in the locking position at the locking position,
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
The plug has a configuration in which uneven portions arranged in the outlet separation direction are provided on an outer surface portion,
The electrical connection structure , wherein the rotation-preventing member is mounted so as not to move in the outlet separation direction by including a concave-convex portion that is engaged with the concave-convex portion so as to be immovable in the outlet separation direction . Consists of an electrical outlet and an electrical plug that connects to the outlet,
The plug insertion port of the electrical outlet moves the pair of insertion blades forward and backward over the insertion/removal position for inserting and removing the pair of insertion blades of the plug and the retaining position for preventing the removal of the insertion blades. It is formed in a curved shape that reciprocates by rotating operation,
The electrical connection structure, wherein the outlet includes a locking portion that locks the insertion blade in the locking position at the locking position,
a rotation-preventing member is provided that can be mounted in a set mounting configuration with respect to the plug positioned at the removal-preventing position;
The setting mounting form is a form in which the rotation preventing member is mounted on the plug in a state in which the plug cannot be rotated in a rotation operation direction of the plug and cannot be moved in a receptacle separation direction away from the receptacle,
a receiving portion for contacting and restricting rotation of the rotation preventing member in a direction for rotating the plug at the removal preventing position toward the insertion/removal position;
The outlet is connected to one of a neutral wire and a pair of voltage wires in a single-phase three-wire commercial power supply,
The electrical connection structure , wherein the plug is connected to wiring for power supply from a power generation unit . An outlet case that can be freely attached to a wall surface and that includes the outlet is provided with an insertion surface portion that forms the plug insertion port in a posture that stands up from a guide surface portion that is in a posture along the wall surface,
The electrical connection structure according to any one of claims 2 to 5 , wherein the receiving portion is configured by the guide surface portion . A rotation preventing member used in the electrical connection structure according to any one of claims 1 to 6.

Images