CN215732588U - Adapter - Google Patents

Abstract

The utility model relates to the technical field of power supply devices, and particularly discloses an adapter which is used for being connected with a to-be-rotated head, wherein the to-be-rotated head is provided with a clamping groove; this adapter includes shell, joint spare, first elastic component, retaining member and second elastic component, and wherein, the shell is located to the joint spare, and has the joint in the draw-in groove so that the joint position of adapter and waiting to turn round the locking connection with keep away from the draw-in groove so that the adapter with wait to turn round the isolated position that can separate. First elastic component locates between shell and the joint spare, and first elastic component makes joint spare locking in joint position. The shell is located to the retaining member, and the retaining member has the locking position that prevents joint spare and keep away from the draw-in groove and dodges joint spare and keep away from the release position of draw-in groove. The second elastic piece is arranged between the shell and the locking piece and used for stopping the locking piece at the locking position. According to the utility model, the locking piece and the second elastic piece are arranged, so that the adapter is prevented from sliding out of the adapter to be turned, and the safety of the adapter in the using process is improved.

Description

Adapter

Technical Field

The utility model relates to the technical field of power supply devices, in particular to an adapter.

Background

The power socket adapter is a commonly used power supply device and generally comprises a to-be-turned head and an adapter, so that two-hole or three-hole sockets can be used.

At present, after the adapter is connected with the adapter, the clamping piece is clamped in the clamping groove of the adapter through the elastic sheet in the adapter, the adapter needs to lean against the elastic force generated by the elastic sheet and overcoming 8-10N when the adapter is pulled out from the adapter, the adapter can easily slide out to be rotated, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adapter to solve the problem that in the prior art, a transfer adapter is easy to separate from a to-be-transferred adapter and has potential safety hazards.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an adapter which is used for being connected with a to-be-rotated head, wherein the to-be-rotated head is provided with a clamping groove; the adapter includes:

a housing;

the clamping piece is arranged on the shell and is provided with a clamping position and a separation position, wherein the clamping position is clamped in the clamping groove so that the adapter and the to-be-turned head are locked and connected, and the separation position is far away from the clamping groove so that the adapter and the to-be-turned head can be separated;

the first elastic piece is arranged between the shell and the clamping piece, and the clamping piece is stopped at the clamping position by the first elastic piece;

the locking piece is arranged on the shell and provided with a locking position for preventing the clamping piece from being far away from the clamping groove and a releasing position for avoiding the clamping piece from being far away from the clamping groove;

and the second elastic piece is arranged between the shell and the locking piece and used for stopping the locking piece at the locking position.

As the preferred scheme of an adapter, the adapter still includes the socket, be provided with the socket on the socket, be equipped with the conducting strip in the socket, the socket connect in the shell, treat to be provided with the cartridge groove on the adapter, the cartridge inslot is provided with the tongue of inserting, the socket along the first direction clamp in during the cartridge groove, the tongue of inserting cartridge in the socket, the tongue of inserting is in when the cartridge targets in place in the socket, the tongue of inserting with the conducting strip is connected, just the joint spare is gone into along second direction card in the draw-in groove, the second direction perpendicular to first direction.

As a preferred scheme of the adapter, a guide groove is formed in the socket, a guide block is arranged in the insertion groove, and when the socket is clamped in the insertion groove along the first direction, the guide block is inserted in the guide groove.

As an optimal scheme of adapter, be provided with two along the third direction interval in the cartridge groove the insertion tongue, the guide block set up in two between the insertion tongue, the draw-in groove set up in on the guide block, the joint spare set up in the guide groove, the third direction perpendicular to first direction with the second direction.

As the preferred scheme of an adapter, be provided with on the inner wall of guide way and counterpoint protruding stupefied, be provided with the counterpoint guide slot on the lateral wall of guide block, counterpoint protruding stupefied with the counterpoint guide slot is all followed the first direction extends, the guide block cartridge in when in the guide way, counterpoint protruding stupefied cartridge in counterpoint in the guide slot.

As the preferred scheme of an adapter, the retaining member slides and locates the shell, the retaining member is located during the locking position, support and lean on the joint spare deviates from one side of draw-in groove, the retaining member is located during the release position, dodge the joint spare.

As the preferred scheme of an adapter, the shell includes casing and lid, first elastic component is located the lid, the lid with form a sliding tray behind the casing lock, the retaining member is in slide in the sliding tray, the casing is equipped with the opening, the retaining member is equipped with stirring portion, stirring portion certainly stretch out in the sliding tray and be located in the opening.

As the preferred scheme of an adapter, the casing orientation one side of lid is equipped with two first protruding stupefied, two first protruding stupefied is located respectively the open-ended both sides, and follow the slip direction of retaining member extends, the lid orientation one side of casing is equipped with two protruding stupefied of second, two the protruding stupefied of second is two first protruding stupefied one-to-one, the retaining member clamp is located two first protruding stupefied and two the protruding stupefied between the second.

As the preferred scheme of an adapter, the retaining member orientation one side of joint spare is equipped with the first portion of tightly supporting, the joint spare orientation one side of retaining member is equipped with the second and supports tight portion, the retaining member is located during the locking position, the first portion of tightly supporting with the second supports tight portion butt.

As a preferred scheme of adapter, the first portion of supporting tightly with the butt end of the second portion of supporting tightly is equipped with first inclined plane, first inclined plane is followed the retaining member by the release position slides to the direction of locking position is kept away from the second portion of supporting tightly.

As the preferred scheme of an adapter, the retaining member is equipped with the installation department, the second elastic component is the spring, the second elastic component supports to be located the retaining member with just the cover is located between the shell the installation department.

The utility model has the beneficial effects that:

the utility model provides an adapter which is provided with a shell and a locking piece arranged on the shell, wherein the locking piece can prevent a clamping piece from being far away from a clamping groove to be turned when in a locking position, and a second elastic piece is arranged between the shell and the locking piece to enable the locking piece to be locked in the locking position. When the adapter with wait to turn round the separation, the elasticity that needs to overcome the second elastic component switches the retaining member to the release position for the draw-in groove can be kept away from to the joint spare, and then makes the adapter can with wait to turn round the separation. Retaining member and second elastic component's setting avoid the adapter roll-off to wait to change the head, have improved the security of adapter use.

Drawings

Fig. 1 is a first schematic structural diagram of an adapter and a to-be-rotated adapter according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of an adapter and a to-be-rotated adapter according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal structure of an adapter and a to-be-rotated adapter according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a cover according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an adapter (with a cover hidden) according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a housing in an embodiment of the utility model.

In the figure:

a. a first direction; b. a second direction; c. a third direction;

100. waiting for turning; 101. a guide block; 1011. a card slot; 1012. aligning the guide groove; 102. inserting a tongue;

1. a housing; 11. a housing; 111. an opening; 112. a first ridge; 113. a third ridge; 12. a cover body; 121. a socket; 1211. a socket; 1212. aligning convex edges; 122. a second ridge; 13. a conductive sheet;

2. a clamping piece; 21. a second abutting part; 22. a second chamfer;

3. a first elastic member;

4. a locking member; 41. a toggle part; 42. a first abutting portion; 43. a first chamfer; 44. an installation part; 5. a second elastic member.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 3, the present embodiment provides an adapter, which is used to connect with a to-be-turned head 100, where the to-be-turned head 100 is provided with a slot 1011; this adapter includes shell 1, joint spare 2, first elastic component 3, retaining member 4 and second elastic component 5, and wherein, joint spare 2 is located shell 1, and has the joint in draw-in groove 1011 so that the adapter with treat the joint position of turning 100 locking connection and keep away from draw-in groove 1011 so that the adapter with treat the separation position that 100 can separate of turning. First elastic component 3 is located between shell 1 and joint spare 2, and first elastic component 3 makes 2 stops of joint spare in the joint position. Casing 1 is located to retaining member 4, and retaining member 4 has the locking position that prevents joint spare 2 to keep away from draw-in groove 1011 and dodges the release position that joint spare 2 kept away from draw-in groove 1011. A second elastic member 5 is provided between the housing 1 and the locker 4, and the second elastic member 5 serves to stop the locker 4 at the locking position.

In this embodiment, when the adapter with when waiting to turn round 100 separation, need overcome earlier the elasticity of second elastic component 5 and switch retaining member 4 to the release position for draw-in groove 1011 can be kept away from to joint spare 2, when pulling out the adapter this moment, the elasticity and the draw-in groove 1011 separation of first elastic component 3 are overcome to joint spare 2, and then make the adapter with wait to turn round 100 and can separate. Retaining member 4 and second elastic component 5's setting avoids the adapter roll-off to wait to change head 100, has improved the security of adapter in the use.

With reference to fig. 4 and fig. 5, after the adapter and the to-be-turned head 100 are connected, electrical connection between the adapter and the to-be-turned head 100 needs to be achieved, so as to facilitate electrical connection between the adapter and the to-be-turned head 100, and improve safety of the electrical connection between the adapter and the to-be-turned head 100, in this embodiment, optionally, the adapter further includes a socket 121, a socket 1211 is disposed on the socket 121, a conductive plate 13 is disposed in the socket 1211, the socket 121 is connected to the housing 1, a plug-in slot is disposed on the to-be-turned head 100, a plug tongue 102 is disposed in the plug-in slot, when the socket 121 is clamped in the plug-in slot along a first direction a, the plug tongue 102 is inserted in the socket 1211, when the plug tongue 102 is inserted in the socket 1211 in place, the plug tongue 102 is connected to the conductive plate 13, preferably, and the clamping member 2 is clamped in the clamping slot 1011 along a second direction b, where the second direction b is perpendicular to the first direction a. With the above arrangement, when the tongue 102 is inserted in place in the socket 1211, it can be connected to the conductive plate 13 in the socket 1211, so that the adapter and the adapter 100 to be rotated are electrically connected. Moreover, the conductive plate 13 is arranged inside the socket 1211, so that the conductive plate 13 is shielded, and the occurrence of electric shock accidents caused by contact of people is avoided.

In order to facilitate accurate insertion of the socket 121 and the insertion slot, in the embodiment, optionally, a guide slot is provided on the socket 121, a guide block 101 is provided in the insertion slot, and the guide block 101 is inserted into the guide slot when the socket 121 is clamped in the insertion slot along the first direction a. Due to the arrangement, the socket 121 can be accurately inserted into the insertion groove without deviation, and the assembly speed of the socket 121 and the insertion groove is improved.

Regarding the arrangement of the insertion tongues 102, in the present embodiment, optionally, two insertion tongues 102 are arranged in the insertion groove at intervals along a third direction c, the insertion tongues 102 are rotatably connected in the insertion groove, the guide block 101 is arranged between the two insertion tongues 102, the locking groove 1011 is arranged on the guide block 101, the locking member 2 is arranged in the guide groove, and the third direction c is perpendicular to the first direction a and the second direction b. This setting makes the compact structure of adapter, reduces the size of adapter, reduction in production cost.

Preferably, in this embodiment, the inner wall of the guide groove is provided with an alignment protrusion 1212, the side wall of the guide block 101 is provided with an alignment guide groove 1012, the alignment protrusion 1212 and the alignment guide groove 1012 both extend along the first direction a, and when the guide block 101 is inserted into the guide groove, the alignment protrusion 1212 is inserted into the alignment guide groove 1012. The arrangement of the alignment convex edge 1212 and the alignment guide groove 1012 enables the alignment structure of the guide groove and the guide block 101 to have smaller volume, is convenient to process and is beneficial to reducing the cost. Optionally, the two opposite side walls of the guide groove are each provided with an alignment ridge 1212, and correspondingly, the two opposite side walls of the guide block 101 are each provided with an alignment guide groove 1012. Further, when the guide block 101 is inserted into the guide groove, a chamfer is arranged at one end of the alignment convex edge 1212, which is in contact with the alignment guide groove 1012, so that the insertion of the alignment convex edge 1212 and the alignment guide groove 1012 is more convenient.

Regarding the structure of the first elastic element 3, in this embodiment, preferably, the first elastic element 3 is a spring plate, one end of the spring plate is connected to the housing 1, and the clamping element 2 is disposed at the other end of the spring plate. The elastic sheet has simple structure and low cost. Further, the elastic sheet is fixed to the housing 1, preferably integrally formed. Furthermore, the clamping piece 2 is a clamping protrusion, and the clamping protrusion and the elastic sheet are integrally formed. This arrangement reduces the design and manufacturing costs of the first elastic member 3 and the clip member 2.

Regarding retaining member 4's structure, in this embodiment, optionally, retaining member 4 slides and locates shell 1, and retaining member 4 leans on one side that joint piece 2 deviates from draw-in groove 1011 when being located locking position, and retaining member 4 is located release position, dodges joint piece 2, and at this moment, joint piece 2 can keep away from draw-in groove 1011. Retaining member 4 slides and locates shell 1 for retaining member 4's simple structure, and convenient operation. Specifically, the locker 4 may slide on the housing 1 in the first direction a, the second direction b, or the third direction c. Preferably, the locker 4 may slide on the housing 1 in the first direction a.

Preferably, the housing 1 includes a housing 11 and a cover 12, the first elastic element 3 is disposed on the cover 12, the cover 12 is fastened with the housing 11 to form a sliding slot, the locking element 4 slides in the sliding slot, the housing 11 is provided with an opening 111, the locking element 4 is provided with a toggle portion 41, and the toggle portion 41 extends out of the sliding slot and is located in the opening 111. This arrangement is advantageous in reducing the processing cost of the housing 1, and it is easier to arrange various structures inside the housing 1, making full use of the internal space of the housing 1. In addition, the opening 111 is provided so that the dial portion 41 can be manually dialed. Optionally, the toggle part 41 is located in the opening 111 so that the toggle part 41 is not subjected to a wrong operation to cause the locking member 4 to switch to the release position.

In the sliding process, the precision of the two contact surfaces is required, and when the area of the contact surfaces is large, the processing difficulty is large, and the cost is high. For this reason, in this embodiment, with reference to fig. 6, preferably, two first protruding ridges 112 are disposed on one side of the housing 11 facing the cover 12, the two first protruding ridges 112 are respectively located on two sides of the opening 111 and extend along the sliding direction of the locking member 4, two second protruding ridges 122 are disposed on one side of the cover 12 facing the housing 11, the two second protruding ridges 122 and the two first protruding ridges 112 correspond to each other one by one, the locking member 4 is sandwiched between the two first protruding ridges 112 and the two second protruding ridges 122, and preferably, the first protruding ridges 112 and the second protruding ridges 122 are parallel and both extend along the first direction a. By means of the arrangement, the locking piece 4 is abutted against the four convex ridges and slides under the support of the convex ridges, so that the contact area with the locking piece 4 is reduced, and the processing difficulty is reduced; on the other hand, the material is saved, and the cost is reduced. Optionally, two collinear third protruding ridges 13 are disposed in the middle of the two first protruding ridges 112, and the two third protruding ridges 13 both extend along the first direction a and are located on two sides of the opening 111 respectively. This setting has increased the holding power to retaining member 4, avoids retaining member 4 to take place deformation and then leads to joint piece 2 and draw-in groove 1011 separation.

Alternatively, the opening 111 is flared, and the inner diameter of the opening 111 gradually increases in a direction away from the cover 12. The arrangement is convenient for extending the hands to operate, and improves the convenience of operation.

In this embodiment, as preferred, retaining member 4 is equipped with first portion 42 of tightly supporting towards one side of retaining member 2, and retaining member 2 is equipped with the second portion 21 of tightly supporting towards one side of retaining member 4, and when retaining member 4 was located the locking position, first portion 42 of tightly supporting and the butt of second portion 21 of tightly supporting. The structure of the locking piece 4 and the clamping piece 2 is optimized by the arrangement, so that the locking piece and the clamping piece are made of fewer materials and are lower in cost. Further, first portion 42 and the retaining member 4 of supporting and second portion 21 and the joint spare 2 of supporting all are equipped with the gusset between to increase first portion 42 and the second portion 21 of supporting intensity of supporting tightly.

Since the first abutting portion 42 and the second abutting portion 21 abut when the locking member 4 is in the locking position, the first abutting portion 42 and the second abutting portion 21 are easily jammed when the locking member 4 is switched from the releasing position to the locking position. For this reason, in this embodiment, optionally, the abutting ends of the first abutting portion 42 and the second abutting portion 21 are provided with a first inclined surface, and the first inclined surface is far away from the second abutting portion 21 along the direction in which the locking member 4 slides from the releasing position to the locking position. This arrangement allows the first inclined surface to cooperate with the second abutting portion 21 when the locking member 4 is switched from the releasing position to the locking position, thereby preventing the first abutting portion 42 and the second abutting portion 21 from being jammed. Furthermore, the abutting end of the second abutting part 21 and the first abutting part 42 is provided with a second inclined surface, and the second inclined surface is parallel to the first inclined surface; when the locking member 4 is located at the locking position, the first inclined surface and the second inclined surface are abutted.

Furthermore, the first abutting portion 42 has a first chamfer 43 at the lowest position of the first inclined plane, and the second abutting portion 21 has a second chamfer 22 at the lowest position of the second inclined plane. The arrangement of the chamfer further improves the smooth degree of the matching between the first abutting part 42 and the second abutting part 21, and is also beneficial to improving the demoulding success rate of the first inclined surface structure and the second inclined surface structure in the injection molding process.

Preferably, the locking member 4 is provided with a mounting portion 44, the second elastic member 5 is a spring, and the second elastic member 5 abuts between the locking member 4 and the housing 1 and is sleeved on the mounting portion 44. The arrangement of the mounting part 44 improves the mounting efficiency of the second elastic part 5, and avoids the situation that the second elastic part 5 is easy to bounce in the mounting process.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (11)

1. The adapter is characterized by being used for being connected with a to-be-rotated head (100), wherein the to-be-rotated head (100) is provided with a clamping groove (1011); the adapter includes:

a housing (1);

the clamping piece (2) is arranged on the shell (1) and is provided with a clamping position and a separation position, wherein the clamping position is clamped in the clamping groove (1011) so that the adapter and the to-be-turned head (100) are connected in a locking mode, and the separation position is far away from the clamping groove (1011) so that the adapter and the to-be-turned head (100) can be separated;

the first elastic piece (3) is arranged between the shell (1) and the clamping piece (2), and the clamping piece (2) is stopped at the clamping position by the first elastic piece (3);

the locking piece (4) is arranged on the shell (1), and the locking piece (4) is provided with a locking position for preventing the clamping piece (2) from being far away from the clamping groove (1011) and a releasing position for avoiding the clamping piece (2) from being far away from the clamping groove (1011);

and the second elastic piece (5) is arranged between the shell (1) and the locking piece (4) and used for stopping the locking piece (4) at the locking position.

2. The adapter according to claim 1, wherein the adapter further comprises a socket (121), a socket (1211) is arranged on the socket (121), a conductive plate (13) is arranged in the socket (1211), the socket (121) is connected to the housing (1), an insertion groove is arranged on the adapter (100), a tongue (102) is arranged in the insertion groove, when the socket (121) is clamped in the insertion groove along a first direction (a), the tongue (102) is inserted in the socket (1211), when the tongue (102) is inserted in the insertion groove (1211), the tongue (102) is connected to the conductive plate (13), and the clamping member (2) is clamped in the clamping groove (1011) along a second direction (b), and the second direction (b) is perpendicular to the first direction (a).

3. An adapter according to claim 2, wherein the socket (121) is provided with a guide slot and the slot is provided with a guide block (101), the guide block (101) being inserted into the guide slot when the socket (121) is snapped into the slot in the first direction (a).

4. The adapter according to claim 3, wherein two of said tongues (102) are spaced apart in said slot in a third direction (c), said guide block (101) being disposed between two of said tongues (102), said notch (1011) being disposed on said guide block (101), said clip (2) being disposed in said slot, said third direction (c) being perpendicular to said first direction (a) and said second direction (b).

5. The adapter according to claim 3, wherein an alignment protrusion (1212) is disposed on an inner wall of the guide groove, an alignment guide groove (1012) is disposed on a side wall of the guide block (101), the alignment protrusion (1212) and the alignment guide groove (1012) both extend along the first direction (a), and when the guide block (101) is inserted into the guide groove, the alignment protrusion (1212) is inserted into the alignment guide groove (1012).

6. The adapter according to claim 1, characterized in that retaining member (4) is slidably disposed on housing (1), and when retaining member (4) is located at the locking position, it abuts against one side of clamping member (2) deviating from clamping groove (1011), and when retaining member (4) is located at the releasing position, it avoids clamping member (2).

7. The adapter according to claim 6, wherein the housing (1) comprises a casing (11) and a cover (12), the first elastic member (3) is disposed on the cover (12), a sliding groove is formed after the cover (12) and the casing (11) are fastened together, the locking member (4) slides in the sliding groove, the casing (11) is provided with an opening (111), the locking member (4) is provided with a shifting portion (41), and the shifting portion (41) extends out of the sliding groove and is located in the opening (111).

8. The adapter according to claim 7, wherein one side of the housing (11) facing the cover (12) is provided with two first protruding ridges (112), the two first protruding ridges (112) are respectively located on two sides of the opening (111), and extend along the sliding direction of the locking member (4), one side of the housing (11) facing the cover (12) is provided with two second protruding ridges (122), the two second protruding ridges (122) and the two first protruding ridges (112) are in one-to-one correspondence, and the locking member (4) is clamped between the two first protruding ridges (112) and the two second protruding ridges (122).

9. The adapter according to claim 1, characterized in that one side of retaining member (4) towards retaining member (2) is equipped with first portion of tightly supporting (42), one side of retaining member (2) towards retaining member (4) is equipped with second portion of tightly supporting (21), when retaining member (4) is located the locking position, first portion of tightly supporting (42) with the butt of second portion of tightly supporting (21).

10. The adapter according to claim 9, wherein the abutting ends of the first abutting portion (42) and the second abutting portion (21) are provided with a first inclined surface, and the first inclined surface is away from the second abutting portion (21) along the direction in which the locking member (4) slides from the releasing position to the locking position.

11. An adapter according to any of claims 1-10, wherein the locking member (4) is provided with a mounting portion (44), the second resilient member (5) is a spring, and the second resilient member (5) abuts between the locking member (4) and the housing (1) and is sleeved on the mounting portion (44).

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