TWI507613B - A lock device - Google Patents

Description

Locking device

The invention relates to a locking device.

Screws are common fasteners that are often used to hold two objects together. However, the fixing method using the screws requires the aid of an auxiliary tool, and it is inconvenient to fix the two objects together without the auxiliary tool.

In view of the above, it is necessary to provide a locking device that can directly fix two objects together by manually installing the locking device.

A locking device for fixing an upper connecting plate and a lower connecting plate formed with a receiving hole, wherein the locking device comprises a hollow sleeve and an inner plug column received in the sleeve; the top of the sleeve extends inward Formed with an inner flange, the top of the sleeve extends outwardly to form an outer flange, and the bottom of the sleeve extends to form an elastic piece inclined to the inner side, and the bottom of the elastic piece is outwardly formed with an outer flange; the locking device passes through the upper connection a receiving hole of the plate and the lower connecting plate, the outer flange of the top of the sleeve is in contact with the top surface of the upper connecting plate; when the inner plug column moves toward the bottom of the main body, the elastic piece is moved outward from the initial position by the pressing of the inner plug column, When the top of the inner plug rotates to the inner flange of the top of the sleeve, the inner plug holds the elastic piece in the second position, and at this time, the outer flange of the bottom of the elastic piece interferes with the bottom surface of the lower connecting plate.

Compared with the prior art, the locking device is simple and easy to use, and it can directly install the locking device and fix two objects together.

1‧‧‧Lock device

107‧‧‧Support

10‧‧‧ sleeve

108‧‧‧Outer flange

101‧‧‧ Subject

109‧‧‧ inner flange

102‧‧‧through hole

20‧‧‧ Nese column

103‧‧‧Outer flange

201‧‧‧ Nese column main body

104‧‧‧ inner flange

202‧‧‧Control Department

105‧‧‧Open slot

30‧‧‧Upper connection plate

106‧‧‧Shrap

40‧‧‧ Lower connection plate

1 is a perspective view of a locking device according to an embodiment of the present invention.

Figure 2 is an exploded view of the latching device of Figure 1.

Figure 3 is a perspective view of the inner plug of the latching device of Figure 1 in a second position.

Fig. 4 is a cross-sectional view showing the inner plug of the lock device shown in Fig. 1 in the Y-axis direction at the initial position.

Figure 5 is a cross-sectional view of the inner plug of the latching device of Figure 1 in the Y-axis direction in the second position.

As shown in FIGS. 1 and 2, the locking device 1 includes a sleeve 10 and an inner plug 20 slidably received in the sleeve 10.

The sleeve 10 includes a body 101 which is a hollow cylinder including a through hole 102 extending in the axial direction. The top end of the main body 101 is extended to the outside to form at least one outer flange 103, and the top end of the main body 101 is formed to extend inwardly to form at least one inner flange 104. In the present embodiment, the distal end of the main body 101 is formed with a pair of outer flanges 103 extending outward, and a pair of inner flanges 104 are formed to extend inward.

The main body 101 includes a plurality of opening grooves 105 near the bottom end, thereby forming at least one elastic piece 106 and a supporting portion 107 having elasticity. In the present embodiment, a pair of elastic pieces 106 and a pair of supporting portions 107 are formed at the bottom of the main body 101. The elastic piece 106 extends obliquely toward the inner side, the inner wall of the elastic piece 106 and the inner wall of the main body 101 have an obtuse angle, and the bottom of the elastic piece 106 extends outward to form an outer flange 108. The bottom end of the support portion 107 extends inward to form an inner flange 109.

The inner plug column 20 includes an inner plug column body 201, and the inner plug column body 201 is a cylinder body and an inner plug column A grip portion 202 is formed on the upper surface of the main body 201. The grip portion 202 has a substantially rectangular parallelepiped shape, and the grip portion 202 extends vertically to the inner plug column body 201. The grip portion 202 has an arc shape on both sides in the longitudinal direction, and the diameter of the arc is equal to the diameter of the inner plug main body 201. The thickness of the grip portion 202 is smaller than the diameter of the inner plug body 201 so that the user can operate the grip portion 202 with a finger to push or rotate the inner plug.

After assembly, the inner plug main body 201 of the inner plug 20 is slidably received in the main body 101 of the sleeve 10, and the grip portion 202 of the inner plug 20 protrudes from the top of the main body 101. The inner flange 104 blocks the inner plug main body 201 such that the inner plug main body 201 cannot be removed from the sleeve 10, and the elastic piece 106 is held in the initial position due to its own elastic force.

Referring to FIG. 3, 4, and 5 together, in use, the locking device 1 is passed through the receiving holes of the upper connecting plate 30 and the lower connecting plate 40 until the outer flange 103 interferes with the top surface of the upper connecting plate 30. Thereafter, a pushing force is applied to the grip portion 202 of the inner plug 20 to move the inner plug main body 201 toward the bottom of the main body 101. During the movement of the inner plug main body 201, the elastic piece 106 is pressed outward by the inner plug main body 201, and when the bottom of the inner plug main body 201 is in contact with the inner flange 109 of the support portion 107, the elastic piece 106 is The inner wall is at an angle of 180 degrees to the inner wall of the main body 101, and the inner flange 109 of the support portion 107 also prevents the inner plug main body 201 from penetrating the bottom of the sleeve. At this time, the outer flange 108 of the elastic piece 106 is connected to the lower portion. The bottom surface of the plate 40 is in contact with it. Thereafter, the upper surface of the grip portion 202 is in contact with the inner flange 104 by the grip portion 202 rotating the inner plug post 20, so that the elastic piece 106 cannot push the inner plug post 20 to move upward, so that the elastic piece 106 is maintained at the second position, and the elastic piece 106 is held. The outer flange 108 is held in contact with the ground of the lower connecting plate 40, and the outer flange 103 at the top of the sleeve 10 cooperates with the outer flange 108 of the elastic piece 106 to sandwich the upper connecting plate 30 and the lower connecting plate 40 to the sleeve. 10 The top outer flange 103 is interposed between the outer flange 108 of the elastic piece 106, so that the locking device 1 fixes the upper connecting plate 30 and the lower connecting plate 40 together.

101‧‧‧ Subject

107‧‧‧Support

103‧‧‧Outer flange

108‧‧‧Outer flange

104‧‧‧ inner flange

109‧‧‧ inner flange

106‧‧‧Shrap

202‧‧‧Control Department

Claims (5)

A locking device for fixing an upper connecting plate and a lower connecting plate formed with a receiving hole, wherein the locking device comprises a hollow sleeve and an inner plug column received in the sleeve; The top of the sleeve extends inwardly to form an inner flange, and the top of the sleeve extends outwardly to form an outer flange. The bottom of the sleeve extends to form a support portion and an elastic piece inclined inwardly. The support portion is formed inwardly. a flange, the bottom of the elastic piece extends outwardly to form an outer flange; and when the inner plug pushes the outer movement of the elastic piece, when the bottom of the inner plug column abuts against the inner flange of the support portion, the inner plug is rotated So that the top of the inner plug just abuts against the inner flange of the top of the sleeve; the sleeve passes through the receiving hole of the upper connecting plate and the lower connecting plate, and the outer flange of the top of the sleeve and the upper connecting plate The inner plug includes an inner plug post body and a grip portion formed on an upper surface of the inner plug post body, the grip portion having a thickness smaller than a diameter of the inner plug post body; and the inner plug post moving toward the bottom of the sleeve The shrapnel is pressed by the inner plug column from the initial position outward When the top of the inner plug rotates to abut against the inner flange of the top of the sleeve, the inner plug holds the elastic piece in a second position, and the outer flange of the bottom of the elastic piece is connected with the lower portion. The bottom surface of the board is in contact. The locking device of claim 1, wherein the sleeve is formed with two supporting portions at the bottom. The locking device according to claim 1, wherein the holding portion has a circular arc shape on both sides in the longitudinal direction, and the diameter of the circular arc is equal to the diameter of the inner plug main body. The latching device of claim 1, wherein the sleeve top extends inwardly to form two inner flanges, the sleeve top extending outwardly to form two outer flanges. The locking device of claim 1, wherein the number of the elastic pieces is two.