Locking piece

Abstract

The locking piece comprises a shell, a locking part and a locking part, the column is at least partially accommodated in the shell and can move between a locking position and an unlocking position along the axial direction relative to the shell; wherein the shell is provided with at least one positioning hole, the column is provided with at least one rib part, and the rib part is accommodated in the positioning hole so as to prevent relative rotation between the column and the shell.

Description

Technical Field

[0001] This application relates to a locking member. Background Art

[0002] Locking members are commonly used mechanical devices, which are used to fasten one object to another, such as fastening a circuit board to another circuit board. There is a continuous need for improvement in locking members, such as in simplifying the manufacturing process, reducing costs, and improving stability. Utility Model Content

[0003] A locking member according to this application includes: a housing; a post, at least partially received in the housing and movable relative to the housing along an axis between a locked position and an unlocked position; wherein, the housing is provided with at least one positioning hole, and the post is provided with at least one rib, and the rib is received in the positioning hole to prevent relative rotation between the post and the housing.

[0004] In one embodiment, the housing includes a side wall and a top located at the top of the side wall, and the positioning hole is provided in the top.

[0005] In one embodiment, a central hole penetrating the top is provided at the center of the top, and the post is inserted into the central hole; the two positioning holes extend outward from opposite sides of the central hole respectively.

[0006] In one embodiment, a transverse groove passing through the central hole is formed in the top, and the transverse groove penetrates at least partially along the axis through the top to form the positioning hole.

[0007] In one embodiment, the transverse groove has an arc-shaped cross-section in a plane perpendicular to the axis, and the cross-section has a larger width at the upper surface of the top, and the width is less than the diameter of the central hole.

[0008] In one embodiment, the length of the rib is less than the length of the positioning hole.

[0009] In one embodiment, the post includes a head, the head is located above the top and has a diameter larger than the diameter of the central hole; the locking member further includes an operating member, the operating member is in a cylindrical shape sleeved outside the housing and is fixedly connected to the head of the post.

[0010] In one embodiment, the inner wall of the operating member and the outer surface of the housing are both cylindrical and have substantially the same diameter.

[0011] In one embodiment, the locking member further includes a locking block connected to the lower end of the column; in a state where the column is in the locking position, the locking block is at least partially located outside the housing, and in a state where the column is in the unlocking position, the locking block retracts into the housing.

[0012] In one embodiment, the locking member further includes an elastic member received in the housing, and two ends of the elastic member respectively abut against the lower surface of the top and the locking block to bias the column towards the locking position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Hereinafter, embodiments of the present application will be described in further detail with reference to the accompanying drawings, in which:

[0014] Figures 1A to 1F are respectively the front view, rear view, left view, right view, top view, and bottom view of the locking member according to the present application;

[0015] Figure 1G and Figure 1H are respectively perspective views of the locking member from different angles;

[0016] Figure 2 is an exploded perspective view of the locking member;

[0017] Figure 3 is a perspective view showing the positional relationship between the column and the housing of the locking member;

[0018] Figure 4A and Figure 4B respectively show the top view and side view of the locking member in the locked state;

[0019] Figure 5A and Figure 5B are respectively sectional views taken along the A-A line and B-B line in Figure 4A , Figure 5C is a sectional view taken along the C-C line in Figure 4B ;

[0020] Figure 6A and Figure 6B respectively show the top view and side view of the locking member in the unlocked state;

[0021] Figure 7A and Figure 7B are respectively sectional views taken along the D-D line and E-E line in Figure 6A , Figure 7C is a sectional view taken along the F-F line in Figure 6B .

[0022] LIST OF REFERENCE NUMERALS

[0023] 100 Locking member

[0024] 110 Housing

[0025] 111 Top

[0026] 112 Side wall

[0027] 113 Central hole

[0028] 114 Positioning hole

[0029] 115 Transverse groove

[0030] 116 Mounting portion

[0031] 120 Post

[0032] 121 Head

[0033] 122 Tail

[0034] 123 Shaft portion

[0035] 124 Rib portion

[0036] 130 Operating member

[0037] 131 Inner wall

[0038] 140 Locking block

[0039] 150 Elastic member Detailed implementation manner

[0040] Although the present invention is illustrated and described with reference to specific embodiments, the present invention should not be limited to the details shown. Rather, various modifications can be made to these details within the scope of equivalent solutions of the claims and without departing from the present invention.

[0041] The directional descriptions such as "front", "rear", "upper", and "lower" involved in this article are only for convenience of understanding. The present invention is not limited to these directions, but can be adjusted according to the actual situation.

[0042] Refer to Figures 1A to 2 The locking member 100 according to the present application is described as a whole.

[0043] The locking member 100 includes a housing 110, a post 120, an operating member 130, a locking block 140, and an elastic member 150. The housing 110 is mounted to a first object (not shown) such as a circuit board and has a hollow interior. The post 120 is at least partially received in the housing 110 and can move axially relative to the housing 110. In the present application, the post 120 and the housing 110 cannot rotate relative to each other, and the structure for preventing this rotation will be described in detail later.

[0044] The operating member 130 is connected to one end of the column 120 (i.e., the end located outside the housing 110) so as to axially move together with the column 120, and is sleeved outside the housing 110. The operating member 130 is a component for the user to operate. The user can axially move the column 120 through the operating member 130. The locking block 140 is connected to the other end of the column 120 (i.e., the end located inside the housing 110) so as to axially move together with the column 120. The locking block 140 can move to the outside of the housing 110 to achieve the locking function. For example, when the housing 110 is fixed to the first object, the locking block 140 can pass through the first object and engage with the second object, thereby preventing the relative movement between the first object and the second object.

[0045] The elastic member 150 is accommodated in the housing 110, and its two ends respectively abut against the housing 110 and the locking block 140, thereby biasing the locking block 140 and the column 120 connected to the locking block 140 towards the locking position (i.e., the position below the housing 110, which will be described in detail below).

[0046] Refer to Figure 3 The housing 110 and the column 120 will be described in more detail.

[0047] The housing 110 is generally in the shape of a cylinder extending axially, and it includes a side wall 112, a top 111 located at the top of the side wall 112, and a mounting portion 116 located at the bottom end of the side wall 112. In this embodiment, the side wall 112 is in the shape of a cylinder 120. In other embodiments, the side wall 112 may have different shapes, such as a prism 120 shape or other irregular shapes. The mounting portion 116 is a flange provided at the outer periphery of the bottom end of the side wall 112. In other embodiments, the shape of the mounting portion 116 may be changed according to the first object.

[0048] With reference to Figure 3 , a central hole 113 is provided at the center of the top 111. The central hole 113 is a circular hole axially penetrating the top 111, and the diameter of the central hole 113 is approximately equal to the diameter of the column 120. Therefore, the column 120 passes through the top 111 through the central hole 113. The housing 110 is also provided with at least one positioning hole 114, and the column 120 is provided with at least one rib 124, and the rib 124 is accommodated in the positioning hole 114. More specifically, the positioning hole 114 is a groove extending axially, and the rib 124 is a portion rising from the side surface of the column 120 and extending axially. Since the rib 124 is accommodated in the positioning hole 114, the column 120 can axially move along the housing 110 but cannot rotate relative to the housing 110.

[0049] In this embodiment, the positioning holes 114 are provided in the top 111 of the housing 110 to facilitate the machining and manufacturing of the housing 110. In other embodiments, the positioning holes 114 may also be provided at other positions of the housing 110, such as in the inner surface of the side wall 112 of the housing 110.

[0050] In this embodiment, the two positioning holes 114 extend outwardly from the lateral sides of the central hole 113 respectively. Correspondingly, the post 120 is provided with two laterally extending rib portions 124, and each rib portion 124 is inserted into the corresponding positioning hole 114. In other embodiments, the two positioning holes 114 may be arranged at an angle, and there may be more or fewer positioning holes 114, and the number of rib portions 124 may vary accordingly.

[0051] A transverse groove 115 passing through the central hole 113 is formed in the top 111, and the transverse groove 115 passes through the central hole 113 in a direction perpendicular to the axial direction (such as laterally). The transverse groove 115 penetrates at least partially through the top 111 in the axial direction to form the positioning hole 114. That is to say, although the positioning hole 114 passes through the top 111 in the axial direction, it is not necessary to perform axial machining on the top 111 to form the positioning hole 114. Only by performing lateral machining to form the transverse groove 115, the positioning hole 114 can be formed at the position where the transverse groove 115 penetrates the top 111. Therefore, the manufacturing process of the housing 110 can be simplified.

[0052] More specifically, the transverse groove 115 has an arc-shaped cross-section in a plane perpendicular to the axial direction, and this cross-section has a larger width at the upper surface of the top 111, and this width is smaller than the diameter of the central hole 113. Therefore, the arc-shaped cross-section of the transverse groove 115 has a guiding effect. During the process of assembling by inserting the post 120 into the housing 110, the rib portion 124 can be guided by the transverse groove 115 and is easily aligned with the positioning hole 114.

[0053] With reference to Figure 5C and Figure 7C , in one embodiment, the length of the rib portion 124 is less than the length of the positioning hole 114. That is to say, there is a certain gap between the outer end of the rib portion 124 and the outer end of the positioning hole 114. In this way, it is beneficial to reduce the friction force between the post and the housing 110.

[0054] Referring to Figures 4A to 5C The locking member 100 of the present application is continued to be described, in which the locking member 100 shown is in the locked state. In the locked state, the locking block 140 is exposed below the housing 110 to engage with a second object (not shown) so as to achieve the locking function.

[0055] The column 120 includes a head 121, a tail 122, and a rod portion 123. The head 121 is located above the housing 110 and connected to the operating member 130. The tail 122 is located below the housing 110 and connected to the locking block 140. The rod portion 123 extends within the housing 110. The head 121 has a diameter larger than that of the central hole 113, thereby preventing the head 121 from passing through the central hole 113. The operating member 130 is in the shape of a downwardly open cylinder and thus is in the shape of a cylinder sleeved outside the housing 110. More specifically, the inner wall 131 of the operating member 130 and the outer surface of the housing 110 are both cylindrical and have substantially the same diameter. Therefore, the operating member 130 is closely sleeved outside the housing 110, preventing lateral movement between the operating member 130 and the housing 110, and thus preventing lateral movement of the column 120 connected to the operating member 130.

[0056] The ribs 124 of the column 120 are provided on the lateral sides of the rod portion 123. The interior of the housing 110 has a cylindrical accommodation space. The diameter of the rod portion 123 is smaller than the diameter of this accommodation space, and the length between the lateral outer ends of the two ribs 124 is also smaller than the diameter of this accommodation space. Therefore, there is a gap between the rod portion 123 and the housing 110, and the elastic member 150 is disposed in this gap.

[0057] As Figure 5A shown, the length of the rib 124 is smaller than the length of the positioning hole 114. As Figure 5B shown, the diameter of the rod portion 123 is substantially equal to the diameter of the central hole 113.

[0058] When the user needs to unlock the locking member 100, the user pulls the operating member 130 upward, causing the locking member 100 to reach the Figures 6A to 7C shown unlocking state. In this state, the locking block 140 retracts into the housing 110, the elastic member 150 is compressed and provides a large biasing force. The column 120 moves upward relative to the housing 110 by a certain distance, but the lower end of the rib 124 still does not disengage from the positioning hole 114, so the column 120 still cannot rotate.

[0059] In summary, the present application provides a new locking member, which has a simple and easy-to-process structure and can stably prevent relative rotation between the column and the housing.

[0060] Although the preferred embodiments have been shown and described herein, it should be understood that these embodiments are given by way of example only. Those skilled in the art will think of many variations, changes, and substitutions without departing from the spirit of the present invention. Therefore, the appended claims are intended to cover all such variations falling within the spirit and scope of the present invention.

Claims

1. A locking member, characterized in that: The locking member (100) comprises: Housing (110); A column (120) at least partially received in the housing (110) and movable axially relative to the housing (110) between a locked position and an unlocked position; The shell (110) is provided with at least one positioning hole (114), and the column (120) is provided with at least one rib (124), and the rib (124) is accommodated in the positioning hole (114) to prevent relative rotation between the column (120) and the shell (110).

2. The locking member according to claim 1, characterized in that: The housing (110) comprises a side wall (112) and a top portion (111) located at the top end of the side wall (112), and the positioning hole (114) is arranged in the top portion (111).

3. The locking member according to claim 2, characterized in that: A central hole (113) penetrating the top (111) is provided at the center of the top (111), and the column (120) is inserted into the central hole (113); The two positioning holes (114) extend outwards from opposite sides of the central hole (113).

4. The locking member according to claim 3, characterized in that: A transverse groove (115) passing through the central hole (113) is formed in the top portion (111), and the transverse groove (115) at least partially penetrates the top portion (111) in the axial direction to form the positioning hole (114).

5. The locking member according to claim 4, characterized in that: The transverse groove (115) has an arc-shaped cross section on a plane perpendicular to the axial direction, and the width of the cross section at the upper surface of the top (111) is smaller than the diameter of the central hole (113).

6. The locking member according to claim 1, characterized in that: The length of the rib (124) is smaller than the length of the positioning hole (114).

7. The locking member according to claim 3, characterized in that: The column (120) includes a head (121), the head (121) is located above the top (111) and has a diameter greater than the central hole (113); The locking member (100) further comprises an operating member (130), wherein the operating member (130) is in the shape of a tube which is sleeved outside the housing (110) and is fixedly connected to the head (121) of the column (120).

8. The locking element according to claim 7, characterized in that: The inner wall (131) of the operating member (130) and the outer surface of the housing (110) are both cylindrical and have substantially the same diameter.

9. The locking member according to claim 1, characterized in that: The locking member (100) further comprises a locking block (140), wherein the locking block (140) is connected to the lower end of the column (120); When the column (120) is located in the locking position, the locking block (140) is at least partially located outside the housing (110), and when the column (120) is located in the unlocking position, the locking block (140) is retracted into the housing (110).

10. The locking member according to claim 9, characterized in that: The locking member (100) further comprises an elastic member (150) accommodated in the housing (110), and two ends of the elastic member (150) respectively abut against the lower surface of the top (111) of the housing (110) and the locking block (140) to bias the column (120) toward a locking position.

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