Plug

Abstract

The utility model discloses a plug. The plug comprises a main body part and a pin assembly, the plug pin assembly comprises a first plug pin and a second plug pin which are arranged at an interval, and the first plug pin and the second plug pin are rotatably arranged on the main body part so as to rotate between a corresponding storage position and a corresponding use position relative to the main body part; wherein the rotating axis of the first pin and the rotating axis of the second pin are both parallel to the interval direction of the first pin and the second pin, and while the first pin rotates from the corresponding storage position to the corresponding use position, the second pin rotates from the corresponding storage position to the corresponding use position; the first pin and the second pin are in linkage connection and are opposite in rotation direction. By means of the mode, the problem that in the prior art, when a plug is inserted into a socket, the main body part is prone to moving relative to the plug pins under the action of external force is solved.

Description

Technical Field

[0001] The present application relates to the technical field of charging equipment, and in particular to a plug. Background Art

[0002] Plugs are common components of power adapters, power cords, and cord extension kits.

[0003] With the advancement of technology, in order to facilitate the storage of plugs, the pins and the main body of some plugs are movably connected. However, this also causes the main body to easily move relative to the pins under the action of external force when the pins of the plug are inserted into the socket, resulting in a "kneeling pin" phenomenon, which in turn reduces the user experience. Utility Model Content

[0004] The present application provides a plug, which can improve the problem in the prior art that when the plug is inserted into a socket, the main body is easily subjected to force and moves relative to the plug pins.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is: providing a plug, which includes a main body and a pin assembly; the pin assembly includes a first pin and a second pin arranged at an interval, and the first pin and the second pin are rotatably arranged on the main body to rotate between their respective corresponding storage positions and use positions relative to the main body; wherein the rotation axes of the first pin and the second pin are both parallel to the spacing direction between the first pin and the second pin, and when the first pin rotates from the corresponding storage position to the corresponding use position, the second pin rotates from its corresponding storage position to its corresponding use position; the first pin and the second pin are linked and connected, and the rotation directions of the two are opposite.

[0006] The beneficial effect of the present application is that, different from the related art, the first pin and the second pin rotate in opposite directions when they are moved from the use position to the storage position. In this case, the main body rotates in a preset direction to switch one of the first pin and the second pin from the use state to the storage state, and rotates in a direction opposite to the preset direction to switch the other of the first pin and the second pin from the use state to the storage state; and no matter which of the above two directions the main body rotates relative to each other, there will be a pin that remains in the use state. When the first pin and the second pin of the plug are inserted and fixed in the socket, even if the main body is subjected to a force that tends to rotate relative to each other in one of the above two directions, there will be a pin that remains in the use state. Since the pin remains in the use state, the rotation of the main body under force is limited to a certain extent, thereby improving the problem in the prior art that when the plug is inserted into the socket, the main body is easily subjected to force to move relative to the pin assembly, resulting in the "kneeling pin" phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1It is a structural schematic diagram of a plug embodiment of the present application;

[0008] Figure 2 It is a schematic diagram of the exploded structure of the plug embodiment of the present application;

[0009] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle pin assembly and the pressure plate;

[0010] Figure 4 yes Figure 3 A schematic diagram of the structure of the middle pin assembly and the face shell;

[0011] Figure 5 yes Figure 3 Schematic diagram of the structure of the medium voltage board from another perspective;

[0012] Figure 6 yes Figure 5 A schematic diagram of the structure of the middle pin assembly from another perspective;

[0013] Figure 7 yes Figure 4 Schematic diagram of the structure of the face shell in FIG.

[0014] Figure 8 yes Figure 7 A schematic diagram of the structure of the face shell from another perspective;

[0015] Fig. 9 yes Figure 7 Schematic diagram of the structure of the fixing parts.

[0016] 1 plug;

[0017] 10 main body; 11 main shell; 111 receiving cavity; 112 opening;

[0018] 12: face shell; 120: storage slot; 121: bottom wall; 122: side wall;

[0019] 13 pressing plate; 131 elastic arm;

[0020] 14: shaft support; 141: groove;

[0021] 15 conductive member; 151 fixing portion; 152 connecting arm; 153 first portion; 154 second portion;

[0022] 16 fixing member; 161 first stop block; 162 second stop block; 163 third stop block;

[0023] 20 pin assembly; 211 first pin; 212 second pin; 22 linkage mechanism; 221 first gear; 222 second gear;

[0024] 23 first rotating shaft; 24 second rotating shaft; 231 arc-shaped protrusion; 232 first limiting surface; 233 second limiting surface; 234 transition curved surface. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0028] The inventor of the present application has found through research that the pins of some current plugs are foldable. The working principle of such plugs is generally as follows: the pins can rotate relative to the main body of the plug, so that users can freely adjust the position and state of the pins according to their needs. However, this also means that the pins and the main body of the plug can rotate relative to each other, resulting in a "kneeling pin" phenomenon, that is, the pins are neither in the storage position nor in the use position relative to the main body, but there is a certain angle between the storage position and the use position. For example, when the pins of the plug are inserted into a wall socket, the main body may rotate due to the effect of gravity to produce the "kneeling pin" phenomenon.

[0029] See also Figure 1 and Figure 2 The plug 1 generally includes a main body 10 and a pin assembly 20. The main body 10 may have different structures according to the specific device to which the plug 1 is applied. Taking a charger as an example, the main body 10 may include a circuit board. The circuit board may be provided with an input circuit, an output circuit, a transformer, etc. The pin assembly 20 may be connected to the power supply line and connected to the input circuit. The output circuit is used for voltage output. The transformer is coupled between the input circuit and the output circuit to perform voltage conversion.

[0030] According to one or more embodiments of the present application, the pin assembly 20 may include a first pin 211 and a second pin 212 arranged at intervals, and the first pin 211 and the second pin 212 are rotatably arranged on the main body 10 to rotate between their respective corresponding storage positions and use positions relative to the main body 10. The rotation axes of the first pin 211 and the second pin 212 are both parallel to the spacing direction of the first pin 211 and the second pin 212, and when the first pin 211 rotates from the corresponding storage position to the corresponding use position, the second pin 212 rotates from its corresponding storage position to its corresponding use position. The first pin 211 and the second pin 212 are linked and connected, and the rotation directions of the two are opposite.

[0031] Specifically, when the first pin 211 and the second pin 212 are both located at their respective use positions, the pin assembly 20 can correspond to the socket in the socket, and the first pin 211 and the second pin 212 can be inserted into the corresponding socket. When the first pin 211 and the second pin 212 are both located at their respective storage positions, the first pin 211 and the second pin 212 can be partially folded and located in the main body 10, and the plug 1 cannot be inserted into the corresponding socket for use. When the first pin 211 and the second pin 212 are both located at their respective storage positions, the plug 1 can be as Figure 1 shown.

[0032] Specifically, when the first pin 211 and the second pin 212 rotate between their respective corresponding storage positions and use positions relative to the main body 10, one of the first pin 211 and the second pin 212 can rotate clockwise, and the other of the first pin 211 and the second pin 212 rotates counterclockwise. Different from the related art, the first pin 211 and the second pin 212 rotate in opposite directions when they move from the use position to the storage position. In this case, the main body 10 rotates in a preset direction so that one of the first pin 211 and the second pin 212 can be switched from the use state to the storage state, and the main body 10 rotates in a direction opposite to the preset direction so that the other of the first pin 211 and the second pin 212 can be switched from the use state to the storage state; and no matter which of the above two directions the main body 10 rotates relative to each other, one of the pins will remain in the use state. When the first pin 211 and the second pin 212 of the plug 1 are inserted and fixed in the socket, even if the main body 10 is subjected to force and tends to rotate relative to one of the above two directions, there will be a pin that remains in the use state. Since the pin is maintained in the use state, the rotation of the main body 10 is limited to a certain extent, thereby improving the problem in the prior art that when the plug 1 is inserted into the socket, the main body 10 is easily affected by external force and moves relative to the pin assembly, resulting in a "kneeling pin" phenomenon.

[0033] According to one or more embodiments of the present application, the first pin 211 and the rotation axis of the first pin 211 may be parallel to the spacing direction between the first pin 211 and the second pin 212. Figure 2 as well as Figure 3 As shown by line a and line b, line a is the rotation axis of the first pin 211, and line b is the rotation axis of the first pin 211. The spacing direction between the first pin 211 and the second pin 212 is the arrangement direction of the first pin 211 and the second pin 212. The spacing direction can be as shown in FIG. Figure 2 as well as Figure 3 As shown in the C direction, line a and line b are parallel to the spacing direction C.

[0034] According to one or more embodiments of the present application, the first pin 211 and the second pin 212 may be connected in linkage. When one of the first pin 211 and the second pin 212 rotates relative to the main body 10 , the other pin may be driven to rotate relative to the main body 10 synchronously.

[0035] In the above manner, the first pin 211 and the second pin 212 can be moved from their respective storage positions to their respective use positions at the same time, or can be moved from the use position to the storage position at the same time. In addition, as described above, when the first pin 211 and the second pin 212 are inserted into the socket, the main body 10 rotates in any direction, and one of the first pin 211 and the second pin 212 can be maintained in the use position. When the first pin 211 and the second pin 212 are linked, when one of the first pin 211 and the second pin 212 is maintained in the use position, the other of the first pin 211 and the second pin 212 will also be maintained in the use position, thereby making the plug 1 less prone to the kneeling phenomenon.

[0036] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 According to one or more embodiments of the present application, the plug 1 may include a linkage mechanism 22 disposed on the main body 10. The pin assembly 20 includes a first rotating shaft 23 and a second rotating shaft 24 disposed on the main body 10. The first pin 211 is relatively fixed to the first rotating shaft 23, so that the first pin 211 rotates around the rotation axis of the first rotating shaft 23 when rotating. The second pin 212 is relatively fixed to the second rotating shaft 24, so that the second pin 212 rotates around the rotation axis of the second rotating shaft 24 when rotating. The first rotating shaft 23 and the second rotating shaft 24 are transmission-connected through the linkage mechanism 22, so that the first pin 211 and the second pin 212 rotate synchronously.

[0037] See also Figure 4 and Figure 6According to one or more embodiments of the present application, the linkage mechanism 22 may include a first gear 221 and a second gear 222, wherein the first gear 221 is disposed on the first rotating shaft 23, and the second gear 222 is disposed on the second rotating shaft 24, and the first gear 221 and the second gear 222 are meshed with each other so that the first rotating shaft 23 and the second rotating shaft 24 can be transmission-connected. The first gear 221 / the second gear 222 may be integrally formed with the rotating shaft 23.

[0038] According to one or more embodiments of the present application, the main body 10 may further include a main shell 11 and a face shell 12. The main shell 11 is provided with a receiving cavity 111 having an opening 112. The face shell 12 is connected to the main shell 11 and covers the opening 112. The first pin 211 and the second pin 212 correspond to each other one by one when they are in their respective storage positions and are at least partially received in the face shell 12, and the first pin 211 and the second pin 212 extend toward the side toward which the face shell 12 faces when they are in their respective use positions. When the plug 1 of the present application is applied to a charger, the circuit board may be disposed inside the receiving cavity 111.

[0039] See also Figure 1 , Figure 2 and Figure 3 According to one or more embodiments of the present application, the main body 10 is provided with two receiving grooves 120, and the two receiving grooves 120 can be extended along a first direction. When the first pin 211 and the second pin 212 are in the receiving position, they are at least partially received in the receiving groove 120 in a one-to-one correspondence along the first direction. When the first pin 211 and the second pin 212 are in the use position, they extend out of one side of the main body 10 along a second direction perpendicular to the first direction. The first direction can be as follows: Figure 1 As shown by the arrow A in the figure, the second direction can be Figure 1 Indicated by the arrow in B.

[0040] In this way, the pin 21 can be moved into the receiving groove 120 for storage. Specifically, two receiving grooves 120 can be formed on the surface of the housing 12.

[0041] According to one or more embodiments of the present application, the two receiving slots 120 further penetrate the main body 10 in the positive and negative directions of the first direction, and when the first pin 211 and the second pin 212 are in the receiving position, they further extend out of the main body 10 in the positive and negative directions of the first direction. When the length of the receiving slot 120 does not have to be greater than the length of the first pin 211 and the second pin 212, the specifications of the main body 10 can be designed relatively freely.

[0042] See also Figure 3 and Figure 4According to one or more embodiments of the present application, the first rotating shaft 23, the second rotating shaft 24 and the linkage mechanism 22 may also be disposed in the accommodating cavity 111. The main body 10 may further include a pressing plate 13, which is disposed in the accommodating cavity to support the first rotating shaft 23 and the second rotating shaft 24. For example, the pressing plate 13 may be disposed opposite to the face shell 12, and the first rotating shaft 23 and the second rotating shaft 24 may be rotatably supported between the pressing plate 13 and the face shell 12.

[0043] See also Figure 3 and Figure 5 According to one or more embodiments of the present application, the pressure plate 13 is provided with two elastic arms 131. One end of each elastic arm 131 extends from the pressure plate 13, and the other end is suspended. The two elastic arms 131 are applied one by one to elastically hold the first rotating shaft 23 and the second rotating shaft 24. In the above manner, the two elastic arms 131 can respectively abut against the first rotating shaft 23 and the second rotating shaft 24 to hold them on the panel. In addition, the two elastic arms 131 can be adaptively elastically deformed to reliably and stably hold the first rotating shaft 23 and the second rotating shaft 24 on the face shell 12.

[0044] See also Figure 4 and Figure 6 According to one or more embodiments of the present application, arc-shaped protrusions 231 are provided on the outer circumferences of the first rotating shaft 23 and the second rotating shaft 24. The two elastic arms 131 are elastically pressed on the two arc-shaped protrusions 231 respectively. Each arc-shaped protrusion 231 has a first limiting surface 232, a second limiting surface 233, and a transition curved surface 234 connecting the first limiting surface 232 and the second limiting surface 233.

[0045] When the first plug pin 211 and the second plug pin 212 are in the use position, the two elastic arms 131 elastically press the first limiting surfaces 232 of the two arc-shaped protrusions 231 respectively, and when the first plug pin 211 and the second plug pin 212 are in the storage position, the two elastic arms 131 elastically press the second limiting surfaces 233 of the two arc-shaped protrusions 231 respectively. During the rotation process between the first plug pin 211 and the second plug pin 212 in the storage position and the use position, the two elastic arms 131 elastically press the transition curved surfaces 234 of the two arc-shaped protrusions 231 respectively, and when pressing the corresponding first limiting surfaces 232 and second limiting surfaces 233, the two elastic arms 131 deviate in the direction away from the first rotation axis 23 and the second rotation axis 24 respectively.

[0046] Among them, when the elastic arm 131 abuts against the first limiting surface 232 or the second limiting surface 233, the contact area between the two can be greater than the contact area between the elastic arm 131 and the transition curved surface 234 when the elastic arm 131 abuts against the transition curved surface 234, so that the elastic arm 131 can abut against the first limiting surface 232 or the second limiting surface 233 more stably, so that the first pin 211 and the second pin 212 can be stably maintained in the use position or the storage position without shaking easily.

[0047] See also Figure 7 and Figure 8 According to one or more embodiments of the present application, the face shell 12 is provided with a plurality of rotating shaft supports 14. The first rotating shaft 23 and the second rotating shaft 24 are respectively provided on the plurality of rotating shaft supports 14, each rotating shaft support 14 is provided with a groove 141, and the first rotating shaft 23 and the second rotating shaft 24 are respectively rotatably provided in the groove 141. In the above manner, the rotating shaft support 14 can limit the shaking of the first rotating shaft 23 and the second rotating shaft 24 to a certain extent, so as to improve the stability of the setting of the first rotating shaft 23 and the second rotating shaft 24.

[0048] According to one or more embodiments of the present application, the number of the rotation shaft support members 14 may be four, and the first rotation shaft 23 and the second rotation shaft 24 are each supported by two rotation shaft support members 14. In this case, the two rotation shaft support members 14 can limit the first rotation shaft 23 and the second rotation shaft 24 from rotating around axes other than the axes of the first rotation shaft 23 and the second rotation shaft 24 to a certain extent, thereby improving the stability of the assembly of the rotation shaft 23.

[0049] See also Figure 7 and Fig. 9 According to one or more embodiments of the present application, the main body 10 further includes two conductive members 15 disposed on the housing 12, and the two conductive members 15 are electrically connected to the first pin 211 and the second pin 212, respectively. Taking the plug 1 for a charger as an example, the conductive member 15 can be used to connect the circuit board and the first pin 211 and the second pin 212. Taking the plug 1 for a power extension assembly as an example, the conductive member 15 can be used to connect the power extension cord and the pin 21.

[0050] According to one or more embodiments of the present application, two fixing members 16 are provided in the face shell 12. Two conductive members 15 are respectively provided on the two fixing members 16 and respectively abut against the corresponding first pin 211 and second pin 212. In this case, the two conductive members 15 can respectively maintain electrical connection with the first pin 211 and the second pin 212 by abutting. In addition, compared with the wire connection method, the two conductive members 15 abutting against the first pin 211 and the second pin 212 respectively can avoid the risk of reduced life of the wire due to repeated bending to a certain extent.

[0051] See also Fig. 9 According to one or more embodiments of the present application, the conductive member 15 includes a fixing portion 151 and a connecting arm 152. One end of the connecting arm 152 is connected to the first end of the fixing portion 151, and the other end is suspended and extends toward the second end of the fixing portion 151, so as to elastically abut against the first pin 211 and the second pin 212. In this case, the connecting arm 152 may have a certain elasticity to maintain good contact with the pin 21, so as to avoid the risk of the conductive member 15 and the first pin 211 and the second pin 212 being disconnected from the electrical connection during the rotation process.

[0052] See also Figure 8 According to one or more embodiments of the present application, the fixing member 16 may include a first stopper 161, a second stopper 162, and a third stopper 163. The fixing portion 151 includes a first portion 153 and a second portion 154 that are bent. The first portion 153 may be disposed between the first stopper 161 and the third stopper 163. The second portion 154 is disposed between the second stopper 162 and the third stopper 163.

[0053] The face shell 12 may include a bottom wall 121 and a side wall 122 surrounding the bottom wall 121. A first stop block 161 may be disposed on the side wall 122. A second stop block 162 may be disposed on the bottom wall 121. A third stop block 163 may be disposed at the connection between the side wall 122 and the bottom wall 121. In this case, the first stop block 161 and the third stop block 163 cooperate to limit the first portion 153 from shaking along the extension direction of the side wall 122, and the second stop block 162 and the third stop block 163 cooperate to limit the second portion 154 from shaking along one extension direction of the bottom wall 121, thereby improving the stability of the assembly of the conductive member 15.

[0054] According to one or more embodiments of the present application, there are two third stop blocks 163, and the two third stop blocks 163 are arranged opposite to each other to form an accommodation space for accommodating the connecting arm 152. In this case, the third stop block 163 can limit the shaking of the connecting arm 152 of the conductive member 15 along the other extension direction of the bottom wall 121, thereby improving the stability of the assembly of the conductive member 15.

[0055] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A plug, characterized in that: include: Main body; A pin assembly comprises a first pin and a second pin arranged at intervals, wherein the first pin and the second pin are rotatably arranged on the main body so as to rotate between respective corresponding storage positions and use positions relative to the main body; wherein the rotation axes of the first pin and the second pin are both parallel to the spacing direction between the first pin and the second pin, and while the first pin rotates from the corresponding storage position to the corresponding use position, the second pin rotates from its corresponding storage position to its corresponding use position; the first pin and the second pin are linked and connected and their rotation directions are opposite.

2. The plug according to claim 1, characterized in that: The plug includes a linkage mechanism disposed on the main body; The pin assembly includes a first rotating shaft and a second rotating shaft arranged on the main body, the first pin is relatively fixed to the first rotating shaft, so that the first pin rotates around the rotating axis of the first rotating shaft when rotating; the second pin is relatively fixed to the second rotating shaft, so that the second pin rotates around the rotating axis of the second rotating shaft when rotating; the first rotating shaft and the second rotating shaft are transmission-connected by the linkage mechanism, so that the first pin and the second pin rotate synchronously.

3. The plug according to claim 2, characterized in that: The linkage mechanism includes a first gear and a second gear, the first gear is arranged on the first rotating shaft, the second gear is arranged on the second rotating shaft, and the first gear and the second gear are meshed with each other so that the first rotating shaft and the second rotating shaft can be connected in transmission.

4. The plug according to claim 3, characterized in that: The main body includes a main shell, a face shell and a pressure plate, the main shell is provided with a accommodating cavity with an opening, the face shell is connected to the main shell and covers the opening; the pressure plate, the first rotating shaft, the second rotating shaft and the linkage mechanism are arranged in the accommodating cavity; the pressure plate and the face shell are arranged opposite to each other, and the first rotating shaft and the second rotating shaft are both rotatably supported between the pressure plate and the face shell; the first pin and the second pin correspond to each other one by one and are at least partially accommodated in the face shell when they are in their respective corresponding storage positions, and the first pin and the second pin extend toward the side toward which the face shell faces when they are in their respective corresponding use positions.

5. The plug according to claim 4, characterized in that: The pressure plate is provided with two elastic arms, one end of each of the elastic arms extends from the pressure plate, and the other end is suspended; the two elastic arms are applied one by one to elastically press the first rotating shaft and the second rotating shaft.

6. The plug according to claim 5, characterized in that: The outer circumferences of the first rotating shaft and the second rotating shaft are both provided with arc-shaped protrusions, the two elastic arms are elastically pressed on the two arc-shaped protrusions respectively, and each of the arc-shaped protrusions has a first limiting surface, a second limiting surface, and a transition curved surface connecting the first limiting surface and the second limiting surface; When the first pin and the second pin are in the use position, the two elastic arms elastically press the first limiting surfaces of the two arc-shaped protrusions respectively, and when the first pin and the second pin are in the storage position, the two elastic arms elastically press the second limiting surfaces of the two arc-shaped protrusions respectively; during the rotation process of the first pin and the second pin between the storage position and the use position, the two elastic arms elastically press the transition curved surfaces of the two arc-shaped protrusions respectively, and when pressing the corresponding first limiting surfaces and second limiting surfaces, the two elastic arms deviate in the direction away from the first rotating shaft and the second rotating shaft respectively.

7. The plug according to claim 4, characterized in that: The main body also includes two conductive members arranged on the face shell, and the two conductive members are electrically connected to the first pin and the second pin respectively; Two fixing members are arranged in the face shell, and two conductive members are respectively arranged on the two fixing members and respectively abut against the first plug pin and the second plug pin.

8. The plug according to claim 7, characterized in that: The conductive member includes a fixing portion and a connecting arm, one end of the connecting arm is connected to a first end of the fixing portion, and the other end is suspended and extends toward a second end of the fixing portion to elastically abut against the first plug pin and the second plug pin.

9. The plug according to claim 1, characterized in that: The main body is provided with two receiving grooves, and the two receiving grooves are extended along a first direction; when the first pin and the second pin are in the receiving position, they are at least partially received in the receiving grooves in a one-to-one correspondence along the first direction; when the first pin and the second pin are in the use position, they extend out of one side of the main body along a second direction perpendicular to the first direction.

10. The plug according to claim 9, characterized in that The two receiving grooves further penetrate the main body along the positive and negative directions of the first direction, and the first plug pin and the second plug pin further extend out of the main body along the positive and negative directions of the first direction when they are in the corresponding receiving positions.

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