CN218206258U - Locking device and locking system - Google Patents

Abstract

The application discloses locking device includes: a lock bar being an integral member movable longitudinally relative to the first object between a locked position and an unlocked position, the lock bar including a first locking portion and a second locking portion extending longitudinally; and an electrical actuator acting on the locking bar and operable to drive the locking bar towards the unlocked position; and a first guide portion and a second guide portion respectively mounted to the first object, the first locking portion and the second locking portion of the locking lever respectively moving to a first position and locking the second object with respect to the first guide portion and the second guide portion when the locking lever is in the locking position, and the first locking portion of the locking lever respectively moving to a second position different from the first position with respect to the first guide portion and the second guide portion and releasing the second object when the locking lever is in the unlocking position. The application also discloses a locking system.

Description

Locking device and locking system

Technical Field

The present invention relates to a locking device and a locking system comprising the same.

Background

In the modern society, with the popularization of automobiles, people increasingly pursue comfortable and high-quality automobile interior trims, and the variety of the interior trims also tends to be diversified and refined. As an important component of interior trim, automotive glove boxes are increasingly required to be subjected to work and use experience. The locking device, which is an indispensable part of the glove box of an automobile, plays a very important role in the overall performance of the glove box.

The locking device generally comprises two parts: a locking bar and an actuating device. The lock lever selectively allows opening/closing of the cover with respect to the case, and is operable in a lock position or an unlock position to allow or prohibit opening of the cover. The actuating device is used for driving the lock rod to move between the locking position and the unlocking position.

In practical applications, it is desirable that the locking device has a structure as simple as possible to achieve multipoint locking. Furthermore, in applications where the locking lever is driven by an electric actuator, it is desirable to integrate the electric actuator into the locking device, so that the entire locking device is modular for ease of installation and transport, and to have as small a size as possible and a neat profile as possible.

SUMMERY OF THE UTILITY MODEL

A locking device according to the present application for locking a first article to a second article, the locking device comprising: a lock bar being an integral member movable longitudinally relative to the first object between a locked position and an unlocked position, the lock bar including first and second lock portions extending longitudinally; and an electrical actuator acting on the locking bar and operable to drive the locking bar towards the unlocked position; the locking rod is arranged at the locking position, the first locking part and the second locking part of the locking rod respectively move to a first position and lock the second object relative to the first guiding part and the second guiding part, and when the locking rod is arranged at the unlocking position, the first locking part and the first locking part of the locking rod respectively move to a second position different from the first position and release the second object relative to the first guiding part and the second guiding part.

In one embodiment, the locking device further comprises: a housing fixed to the first object and including a bottom wall and two side walls extending substantially perpendicularly from the bottom wall and laterally opposed to each other, the first guide portion and the second guide portion being portions of the housing extending from the bottom wall and located at both longitudinal ends of the housing, respectively; the lock rod is at least partially accommodated in an accommodating space formed by the bottom wall and the side wall of the shell and moves between the locking position and the unlocking position along the longitudinal direction relative to the shell.

In one embodiment, the first guide portion and the second guide portion are walls extending substantially perpendicular to the bottom wall and in a lateral direction, respectively; the lock rod comprises a first sliding part and a second sliding part which extend along the longitudinal direction, and the first sliding part and the second sliding part are respectively inserted into the first opening hole of the first guide part and the second opening hole of the second guide part in a sliding manner; the first locking portion and the second locking portion extend from distal ends of the first sliding portion and the second sliding portion, respectively, toward the same locking direction, and have cross sections smaller than cross sections of the first sliding portion and the second sliding portion, respectively.

In one embodiment, the locking bar includes: a first longitudinal portion; a first lateral portion connected to one end of the first longitudinal portion facing an unlocking direction; a second longitudinal portion; and a second transverse portion, both ends of which are respectively connected to one end of the first longitudinal portion facing the locking direction and one end of the second longitudinal portion facing the unlocking direction; wherein the first sliding portion is connected to a free end of the first lateral portion and extends toward the locking direction, and the second sliding portion is connected to a free end of the second longitudinal portion and extends in the locking direction.

In one embodiment, the housing further comprises a third guide portion parallel to and longitudinally between the first and second guide portions; the locking rod further comprises a third transverse portion and a third sliding portion, one end of the third transverse portion is close to the second transverse portion and is connected to the first longitudinal portion, the third transverse portion transversely extends with the first transverse portion and the second transverse portion in a reverse direction, the third sliding portion is connected to the free end of the third transverse portion and extends towards the locking direction, and the third sliding portion can be slidably inserted into a third opening hole of the third guiding portion.

In one embodiment, the locking device further includes an elastic member, and both ends of the elastic member respectively abut between the elastic member supporting seat of the third transverse portion and the inner wall of the housing to bias the lock lever toward the locking direction.

In one embodiment, the surfaces of the first, second and third sliding portions facing the bottom wall are flush with the surfaces of the first, second and third transverse portions facing the bottom wall, respectively; the surfaces of the first sliding portion, the second sliding portion and the third sliding portion, which face away from the bottom wall, are recessed in the thickness direction relative to the surfaces of the first transverse portion, the second longitudinal portion and the third transverse portion, which face away from the bottom wall, respectively.

In one embodiment, the first guide portion, the second guide portion, and the third guide portion are respectively sleeved with a guide member, and each guide member is respectively opened with a guide cavity for guiding the first sliding portion, the second sliding portion, and the third sliding portion, and a flexible contact portion protruding toward the guide cavity.

In one embodiment, the flexible contact portions are provided in plurality, evenly distributed along the inner periphery of the guide chamber, and each have a configuration extending from the circumferential wall of the guide chamber toward the interior of the guide chamber to be bent for contact with the corresponding sliding portion.

In one embodiment, at least one of the side walls is provided with a side wall notch extending along the longitudinal direction; the locking bar further includes an operating portion extending laterally from the first longitudinal portion to allow the locking bar to be operated from an exterior of the locking device through the operating portion.

In one embodiment, the electric actuator is accommodated in the accommodating space, is disposed in a space surrounded by the second longitudinal portion, the second transverse portion, the second guide portion, and one side wall of the housing, and has an actuating portion that abuts against an actuating receiving portion of the second transverse portion and is movable in a longitudinal direction to actuate the lock lever.

In one embodiment, the first and second transverse portions are parallel to each other and have substantially the same length.

A locking system according to the present application, characterized in that it comprises: a first object, a second object and a locking device according to the present application.

Drawings

FIGS. 1A-1E are front, rear, left, right, and top views, respectively, of a lockout device according to the present application; FIGS. 1F and 1G are perspective views of the locking device at different angles, respectively;

FIG. 2 is an exploded perspective view of the locking device;

FIGS. 3A and 3B are perspective views of the housing of the locking device at different angles, respectively;

FIGS. 4A and 4B are perspective views of the locking bar of the locking device at different angles, respectively;

FIG. 5 is a perspective view of the electrical actuator of the locking device;

fig. 6A and 6B are perspective views of the guide of the locking device at different angles, respectively;

FIGS. 7A and 7B are schematic views of the locking device in a locked position and an unlocked position, respectively;

fig. 8A and 8B are schematic views showing a case (first article) to which the lock device is mounted, the lock device in fig. 8A being in a locked position, and the lock device in fig. 8B being in an unlocked position, respectively.

List of reference numerals:

100. locking device

110. Shell body

111. Bottom wall

111a bottom wall notch

112. Side wall

112a side wall gap

113. Window opening

114. First guide part

114a first opening

115. Second guide part

115a second opening

116. Third guide part

116a third opening

117. First mounting member

118. Second mounting member

120. Lock rod

121. First longitudinal part

122. Second longitudinal portion

123. A first transverse part

124. Second transverse portion

124a actuating receptacle

125. Third transverse part

125a elastic member support base 125a

126. First sliding part

126a first locking part

127. Second sliding part

127a second locking part

128. Third sliding part

129. Operation part

130. Electric actuating device

131. Mounting part

132. Actuating part

140. Guide piece

141. Guide cavity

142. Contact part

150. Elastic piece

DL locking direction

DU unlocking direction

200. First article (case)

Detailed Description

Although the invention is illustrated and described herein with reference to specific embodiments, the invention is not intended to be limited to the details shown. Rather, various modifications may be made in the details within the scope and range of equivalents of the claims and without departing from the invention.

The directions of "front", "back", "upper", "lower", etc. referred to herein are only for convenience of understanding, and the present invention is not limited to these directions, but may be modified according to the actual situation.

A lock device 100 according to the present application is described in entirety with reference to fig. 1A to 2. As shown, the locking device 100 includes: housing 110, locking lever 120, electric actuator 130, guide 140, elastic member 150.

The housing 110 is secured to a first article 200 (see fig. 8A, 8B), such as a glove box compartment, and at least partially houses other components of the lock device 100. The housing 110 has a box shape with an open top, and includes a bottom wall 111 and two side walls 112 extending substantially perpendicularly from the bottom wall 111 and laterally opposite to each other, thereby forming an accommodating space. The open top surface of the housing 110 may be attached to the surface of the first article 200 to form an enclosed space. In other embodiments, the housing 110 may also have a closed top surface, thus forming a closed modular device.

The lock lever 120 is a one-piece member, is at least partially accommodated in an accommodating space formed by the bottom wall 111 and the side wall 112 of the housing 110, and is movable between a locking position and an unlocking position in a longitudinal direction with respect to the housing 110. When the locking lever 120 is in the locked position, at least a portion of the locking lever 120 protrudes from the housing 110 to engage to a second object (not shown) such as a glove box cover to lock the first article 200 to the second article.

The electric actuator 130 is fixed in the receiving space, acts on the locking lever 120, and can be operated to drive the locking lever 120 to move to the unlocking position. A guide 140 is provided on the housing 110 for guiding the movement of the locking bar 120. The elastic member 150 is disposed between the lock lever 120 and the housing 110 for biasing the lock lever 120 toward the locking direction DL.

A specific structure of the case 110 is described with reference to fig. 3A and 3B.

As shown in the drawing, the bottom wall 111 of the case 110 is rectangular, and the side walls 112 extend from both long sides (i.e., lateral sides) of the bottom wall 111. The housing 110 also has a first guide portion 114 and a second guide portion 115 extending from the bottom wall 111 and located at both longitudinal ends of the housing 110. The first guide portion 114 and the second guide portion 115 are walls extending substantially perpendicular to the bottom wall 111 and in the lateral direction, respectively. The first and second guide portions 114 and 115 are used to guide first and second sliding portions 126 and 127 of the lock lever 120, respectively, which will be described in detail below.

The housing 110 may further include a third guide portion 116, the third guide portion 116 being parallel to the first and second guide portions 114 and 115 and located between the first and second guide portions 114 and 115 in the longitudinal direction. The third guide 140 serves to guide the third sliding portion 128 of the locking lever 120, which will be described in detail below. In the present embodiment, the first guide portion 114 and the second guide portion 115 are close to one sidewall 112 of the housing 110, for example, the upper sidewall 112 in fig. 3B, and the third guide portion 116 is close to the other sidewall 112 of the housing 110, for example, the lower sidewall 112 in fig. 3B. Thus, the locking lever 120 is guided at both lateral sides of the housing 110, respectively, facilitating stable movement of the locking lever 120.

In the present embodiment, the components of the locking device 100 are substantially all housed in the housing 110, which facilitates the modularity and ease of installation of the locking device 100. However, in one embodiment, the housing 110 may be omitted. As such, the first guide 114, the second guide 115, and the third guide 116 are separate parts and are mounted to the first article 200 such that the positional relationship between the guides is similar to that in the housing 110. For example, the first guide portion 114, the second guide portion 115, and the third guide portion 116 may be insert-fixed to the first article 200, fixed to the first article 200 by bolts or an adhesive, or integrally formed with the first article 200.

A bottom wall notch 111a is formed in the bottom wall 111 of the housing 110, and the bottom wall notch 111a is located near the first guide portion 114. The side wall 112 bypasses the bottom wall notch 111a, thus allowing the first sliding portion 126 and the first locking portion 126a of the lock lever 120 to extend to the outside of the housing 110 at the bottom wall notch 111a, thereby engaging the second object.

At least one sidewall 112 of the housing 110 is formed with a sidewall notch 112a extending along the longitudinal direction. In the present embodiment, a sidewall notch 112a is opened on the sidewall 112 close to the third guiding portion 116. The sidewall notch 112a is configured to receive the operating portion 129 of the lock lever 120 to provide a manual operation function of the lock lever 120, which will be described in detail below.

The first guide portion 114, the second guide portion 115 and the third guide portion 116 are respectively sleeved with a guide member 140, and each guide member 140 is beneficial to buffering the collision between the lock lever 120 and the housing 110, thereby reducing noise.

The bottom wall 111 of the housing 110 is further provided with at least one first mounting member 117 and at least one second mounting member 118 rising toward the inside of the housing 110. The first mounting member 117 is used to mount the housing 110 to the first article 200, and the second mounting member 118 is used to mount the electric actuator 130 to the housing 110.

A specific mechanism of the lock lever 120 will now be described with reference to fig. 4A and 4B.

As shown, the lock lever 120 includes a first longitudinal portion 121, a second longitudinal portion 122, a first lateral portion 123, a second lateral portion 124, a first sliding portion 126, a second sliding portion 127, a third sliding portion 128, a first locking portion 126a, a second locking portion 127a, and an operating portion 129.

The first longitudinal portion 121 extends over most of the longitudinal dimension of the locking bar 120. The first and second lateral portions 123, 124 are connected to one end of the first longitudinal portion 121 facing the unlocking direction DU and one end facing the locking direction DL, respectively. The second longitudinal portion 122 is connected to an end of the second transverse portion 124 remote from the first longitudinal portion 121. Alternatively, the two ends of the second transverse portion 124 are respectively connected to one end of the first longitudinal portion 121 facing the locking direction DL and one end of the second longitudinal portion 122 facing the unlocking direction DU.

In the present embodiment, the first and second lateral portions 123 and 124 are parallel to each other and have substantially the same length. Thus, the first sliding portion 126 and the second sliding portion 127 extend substantially linearly in the same longitudinal direction.

The first sliding portion 126 and the second sliding portion 127 extend in the longitudinal direction, the first sliding portion 126 being connected to a free end of the first transverse portion 123 and extending toward the locking direction DL, the second sliding portion 127 being connected to a free end of the second longitudinal portion 122 and extending along the locking direction DL. The first and second sliding portions 126 and 127 are slidably inserted in the first and second apertures 114a and 115a of the first and second guide portions 114 and 115, respectively. Thus, the contact between the first and second sliding portions 126 and 127 and the first and second guide portions 114 and 115 each define the sliding direction of the lock lever 120, so that the lock lever 120 can stably slide.

The first locking portion 126a and the second locking portion 127a extend in the longitudinal direction, respectively, and more specifically, extend from the tips of the first sliding portion 126 and the second sliding portion 127, respectively, toward the same locking direction DL. When the locking lever 120 is in the locking position, the first and second locking parts 126a and 127a of the locking lever 120 protrude from the housing 110 through the first and second guide parts 114 and 115, respectively, and lock the second object, and when the locking lever 120 is in the unlocking position, the first and second locking parts 126a and 127a of the locking lever 120 retract into the housing 110, respectively, and release the second object.

In the present embodiment, the first locking portion 126a and the second locking portion 127a have a smaller cross section than the cross sections of the first sliding portion 126 and the second sliding portion 127, respectively. In this way, the first sliding portion 126 and the second sliding portion 127 can be prevented from being inserted into the second object.

In the present embodiment, the locking lever 120 further includes a third transverse portion 125 and a third sliding portion 128, and one end of the third transverse portion 125 is connected to the first longitudinal portion 121 near the second transverse portion 124 and extends in a transverse direction opposite to the first and second transverse portions 123 and 124. The third sliding portion 128 is connected to a free end of the third lateral portion 125 and extends toward the locking direction DL, and the third sliding portion 128 is slidably inserted in the third opening 116a of the third guide portion 116.

The third sliding portion 128 is located on the other lateral side of the lock lever 120 with respect to the first sliding portion 126 and the second sliding portion 127. Thus, the locking lever 120 can be more stably slid.

The surfaces of the first, second and third sliding portions 126, 127 and 128 facing the bottom wall 111 are flush with the surfaces of the first, second and third transverse portions 123, 122 and 125 facing the bottom wall 111, respectively. Surfaces of the first sliding portion 126, the second sliding portion 127, and the third sliding portion 128 facing away from the bottom wall 111 are recessed in the thickness direction with respect to surfaces of the first lateral portion 123, the second longitudinal portion 122, and the third lateral portion 125 facing away from the bottom wall 111, respectively.

An elastic member support 125a is disposed at the third transverse portion 125, and referring to fig. 2, 7A and 7B, it can be seen that both ends of the elastic member 150 respectively abut between the elastic member support 125a of the third transverse portion 125 and the inner wall of the housing 110 to bias the lock lever 120 toward the locking direction DL.

In this embodiment, the locking lever 120 further includes an operating portion 129 extending from the first longitudinal portion 121 in the transverse direction, and the operating portion 129 is inserted into the sidewall notch 112a to provide a manual operation function of the locking lever 120.

More specifically, the side of the operating portion 129 facing the locking direction DL is substantially perpendicular to the first longitudinal portion 121, and the side of the operating portion 129 facing the unlocking direction DU is inclined at an obtuse angle with respect to the first longitudinal portion 121. When the electric actuator 130 is inoperable, such as during installation or maintenance of the locking device 100, or when the electric actuator 130 malfunctions, a user may manually operate the lock lever 120 from the outside of the locking device 100 through the operating portion 129 to move to the locking position or the unlocking position.

The electric actuator 130 is described with reference to fig. 5. The electric brake device has a substantially rectangular shape with a plurality of mounting portions 131 to be mounted to the second mounting member 118 of the housing 110. Referring to fig. 2 and 3A to 3B in combination, the electric actuator 130 is disposed in a space surrounded by the second longitudinal portion 122, the second lateral portion 124, the second guide portion 115, and the one sidewall 112 of the housing 110, and has an actuating portion 132. The electric actuator 130 is, for example, a motor, and the actuator 132 is, for example, a lead screw or a worm screw, which can convert a rotational output of the electric actuator 130 into a linear output. The actuating portion 132 abuts on the actuating receiving portion 124a of the second transverse portion 124 and is movable in the longitudinal direction to actuate the lock lever 120. The electric actuator 130 effectively utilizes the space between the locking bar 120 and the housing 110, facilitating a compact mechanism for the locking device 100. In one embodiment, the actuating portion 132 has a buffering structure, such as an outer side of the actuating portion 132 is covered with a flexible material or the actuating portion 132 itself is made of a flexible material, so that a flexible connection is formed between the actuating portion 132 and the second transverse portion 124, thereby reducing collision noise between the two, particularly collision noise caused by bumping of the vehicle during driving of the vehicle.

The electric actuator 130 is electrically connected to a control device (not shown) inside the vehicle through a window 113 on the housing 110, and actuates the lock lever 120 according to a control signal of the control device.

A specific structure of the guide 140 is described with reference to fig. 6A and 6B.

The guide 140 has a guide chamber 141 of the first, second, and third sliding portions 126, 127, 128, and a flexible contact portion 142 protruding into the guide chamber 141. The flexible contact portions 142 are provided in plurality, evenly distributed along the inner circumference of the guide chamber 141, and respectively have a configuration bent and extended from the circumferential wall of the guide chamber 141 toward the inside of the guide chamber 141, for contacting with the corresponding sliding portions.

As described above, the plurality of guides 140 are respectively disposed at the first guide portion 114, the second guide portion 115, and the third guide portion 116 of the housing 110 to respectively guide the first sliding portion 126, the second sliding portion 127, and the third sliding portion 128. Thereby reducing the collision noise between the locking lever 120 and the housing 110. In addition, the flexible contact part 142 reduces a contact area between the locking bar 120 and the guide 140, having an effect of reducing friction.

The operation of the locking device 100 is described with reference to fig. 7A and 7B.

Fig. 7A shows the locking device 100 in a locked position. In the lock position, the first and second sliding portions 126, 127 each project from the housing 110 in the lock direction DL, so that the first and second lock portions 126a, 127a can be engaged to a second object (not shown). The electric actuating device 130 does not apply an actuating force to the locking lever 120, and thus the locking lever 120 is maintained in the locking position by the elastic member 150.

When the user wishes to shift the locking device 100 into the unlocked position, it activates the electric actuating device 130, so that the electric actuating device 130 applies an actuating force to the locking lever 120 in the unlocking direction DU. Accordingly, the lock lever 120 moves to the unlock position of fig. 7B against the bias of the elastic member 150. At this time, the first sliding portion 126, the second sliding portion 127 are each retracted into the housing 110, so that the first locking portion 126a, the second locking portion 127a are disengaged from the second object (not shown).

A locking system according to the present application is described with reference to fig. 8A and 8B.

In the present embodiment, the first object 200 is a box body having an accommodating space. The second object is a box cover, and although the second object is not shown in the drawings, one skilled in the art will readily understand that one end of the second object is pivotally connected to the first object 200, and the other end is free and can be locked or released by the locking device 100. The locking device 100 is mounted inside the first article 200. In fig. 8A, the locking device 100 is in the locking position, and the first locking portion 126a and the second locking portion 127a respectively protrude from the first object 200, so that the second object can be locked. In fig. 8B, the locking device 100 is in the unlocking position, and the first locking portion 126a and the second locking portion 127a are retracted into the first object 200 respectively, thereby releasing the second object.

In summary, the present application provides a multipoint locking device having a simple and compact structure and capable of stable operation.

Although the present invention is described and illustrated with respect to a glove box of an automobile, it will be readily understood by those skilled in the art that the present invention may be applied to any other type of box lock structure.

While preferred embodiments have been shown and described herein, it should be understood that these embodiments are presented by way of example only. Numerous variations, changes, and substitutions will occur to those skilled in the art without departing from the spirit of the invention. Accordingly, it is intended that the appended claims cover all such modifications as fall within the spirit and scope of the invention.

Claims (13)

1. A locking device (100) for locking a first object (200) to a second object, characterized in that the locking device (100) comprises:

a lock lever (120) which is an integral member and is movable between a lock position and an unlock position in a longitudinal direction with respect to the first article (200), the lock lever (120) including a first lock portion (126 a) and a second lock portion (127 a) extending in the longitudinal direction; and

an electrical actuator (130) acting on the locking lever (120) and operable to drive the locking lever (120) towards the unlocked position;

a first guide part (114) and a second guide part (115) respectively installed to the first object (200), when the locking lever (120) is in the locking position, a first locking part (126 a) and a second locking part (127 a) of the locking lever (120) respectively move to a first position and lock the second object with respect to the first guide part (114) and the second guide part (115), when the locking lever (120) is in the unlocking position, the first locking part (126 a) and the first locking part (126 a) of the locking lever (120) respectively move to a second position different from the first position with respect to the first guide part (114) and the second guide part (115) and release the second object.

2. The locking device (100) of claim 1, wherein: the locking device (100) further comprises:

a housing (110) fixed to the first article (200) and including a bottom wall (111) and two lateral walls (112) extending substantially perpendicularly from the bottom wall (111) and laterally opposite, the first guide (114) and the second guide (115) being part of the housing (110), extending from the bottom wall (111) and located at both longitudinal ends of the housing (110), respectively;

the lock rod (120) is at least partially accommodated in an accommodating space formed by a bottom wall (111) and a side wall (112) of the housing (110) and moves between the locking position and the unlocking position along the longitudinal direction relative to the housing (110).

3. The locking device (100) according to claim 2, characterized in that:

the first guide portion (114) and the second guide portion (115) are walls extending substantially perpendicular to the bottom wall (111) and in a lateral direction, respectively;

the lock lever (120) includes a first sliding portion (126) and a second sliding portion (127) extending in a longitudinal direction, the first sliding portion (126) and the second sliding portion (127) being slidably inserted in a first opening hole (114 a) of the first guide portion (114) and a second opening hole (115 a) of the second guide portion (115), respectively;

the first locking portion (126 a) and the second locking portion (127 a) extend from ends of the first sliding portion (126) and the second sliding portion (127), respectively, toward the same locking direction, and have cross sections smaller than cross sections of the first sliding portion (126) and the second sliding portion (127), respectively.

4. The locking device (100) of claim 3, wherein the locking bar (120) comprises:

a first longitudinal portion (121);

a first transverse portion (123) connected to one end of the first longitudinal portion (121) facing in the unlocking direction;

a second longitudinal portion (122); and

a second lateral portion (124) having both ends connected to one end of the first longitudinal portion (121) facing the locking direction and one end of the second longitudinal portion (122) facing the unlocking direction, respectively;

wherein the first sliding portion (126) is connected to a free end of the first transverse portion (123) and extends towards the locking direction, and the second sliding portion (127) is connected to a free end of the second longitudinal portion (122) and extends along the locking direction.

5. The locking device (100) according to claim 4, characterized in that:

the housing (110) further comprises a third guide (116), the third guide (116) being parallel to the first guide (114) and the second guide (115) and longitudinally located between the first guide (114) and the second guide (115);

the lock rod (120) further comprises a third transverse portion (125) and a third sliding portion (128), one end of the third transverse portion (125) is connected to the first longitudinal portion (121) at a position close to the second transverse portion (124), and extends in a direction opposite to the first transverse portion (123) and the second transverse portion (124) in the transverse direction, the third sliding portion (128) is connected to a free end of the third transverse portion (125) and extends towards the locking direction, and the third sliding portion (128) is slidably inserted into the third opening hole (116 a) of the third guide portion (116).

6. The locking device (100) of claim 5, wherein:

the locking device (100) further comprises an elastic piece (150), and two ends of the elastic piece (150) respectively abut against the elastic piece supporting seat (125 a) of the third transverse portion (125) and the inner wall of the shell (110) so as to bias the lock rod (120) to the locking direction.

7. The locking device (100) of claim 5, wherein:

the surfaces of the first sliding portion (126), of the second sliding portion (127) and of the third sliding portion (128) facing the bottom wall (111) are flush with the surfaces of the first transverse portion (123), of the second longitudinal portion (122) and of the third transverse portion (125) facing the bottom wall (111), respectively; surfaces of the first sliding portion (126), the second sliding portion (127), and the third sliding portion (128) that face away from the bottom wall (111) are recessed in a thickness direction with respect to surfaces of the first lateral portion (123), the second longitudinal portion (122), and the third lateral portion (125) that face away from the bottom wall (111), respectively.

8. The locking device (100) of claim 5, wherein:

the first guide portion (114), the second guide portion (115) and the third guide portion (116) are respectively sleeved with a guide piece (140), and each guide piece (140) is respectively provided with a guide cavity (141) for guiding the first sliding portion (126), the second sliding portion (127) and the third sliding portion (128), and a flexible contact portion (142) extending towards the interior of the guide cavity (141).

9. The locking device (100) of claim 8, wherein:

the flexible contact portions (142) are provided in plurality, are uniformly distributed along the inner circumference of the guide chamber (141), and respectively have a configuration bent and extended from the circumferential wall of the guide chamber (141) toward the inside of the guide chamber (141) to be in contact with the corresponding sliding portions.

10. The locking device (100) of claim 5, wherein:

at least one side wall (112) is provided with a side wall notch (112 a) extending along the longitudinal direction;

the lock lever (120) further includes an operating portion (129) extending in a transverse direction from the first longitudinal portion (121) to allow the lock lever (120) to be operated from the outside of the locking device (100) through the operating portion (129).

11. Locking device (100) according to any one of claims 4 to 10, characterized in that:

the electric actuating device (130) is accommodated in the accommodating space, is disposed in a space surrounded by the second longitudinal portion (122), the second lateral portion (124), the second guide portion (115), and one side wall (112) of the housing, and has an actuating portion (132), the actuating portion (132) abuts on an actuating receiving portion (124 a) of the second lateral portion (124), and is movable in a longitudinal direction to actuate the lock lever (120).

12. The locking device (100) according to any one of claims 4 to 10, characterized in that:

the first transverse portion (123) and the second transverse portion (124) are parallel to each other and have substantially the same length.

13. A locking system, characterized in that the locking system comprises:

a first object (200), a second object and a locking device (100) according to any one of claims 1-12.

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