Smart Terminal
By designing a sliding mechanism on the smart terminal to displace the hidden cover plate and the installation base plate, the problem of unsightly appearance of electronic products is solved, and the interface is hidden and exposed, meeting the needs of aesthetics and practicality.
Patent Information
- Application Number
- CN201911266889.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2039-12-11
AI Technical Summary
The existing electronic products are not beautiful in non-working states, and the communication, charging and other interfaces cannot be effectively hidden.
Design an intelligent terminal, using an installation base plate with an interface and a hidden cover plate. The sliding mechanism allows the hidden cover plate to be displaced relative to the installation base plate. After the hidden cover plate is moved into the receiving groove, it covers the interface flush with the top surface of the box body, and when it is removed, it is Expose the interface to realize the hiding and exposure of the interface.
Maintain the integrity and aesthetics of the appearance of the smart terminal when not in use, and facilitate the exposure of interfaces when in use, meeting the needs of aesthetics and practicality.
Smart Images

Figure CN110839328B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power supply equipment, and in particular to an intelligent terminal. Background Art
[0002] At present, electronic products have become ubiquitous items in our daily lives. With the development of electronic products, people are increasingly pursuing the beauty of the appearance and practical convenience of products. While the requirements for appearance are getting higher and higher, communication, charging and other interfaces are not allowed to be directly exposed to the outside. In the prior art, targeted covers are usually set for the above structures, but they still lack beauty as a whole.
[0003] Therefore, how to optimize the appearance of electronic products so that their communication, charging and other interfaces are exposed only when needed and hidden when not needed is a problem we face. Summary of the invention
[0004] The present invention provides an intelligent terminal, which is used to solve the technical problem that the appearance of the intelligent terminal cannot maintain integrity and aesthetics in a non-working state.
[0005] An intelligent terminal of the present invention comprises a box body, wherein the box body is constructed as a hexahedral structure surrounded by a top surface, a bottom surface and four side surfaces, and is characterized in that it also comprises a mounting base plate with an interface and a hidden cover plate, wherein the hidden cover plate is arranged on one side of the mounting base plate with the interface;
[0006] The top surface of the box body is sequentially provided with a receiving groove and a mounting groove extending in a direction perpendicular to the top surface, the mounting bottom plate is fixed in the mounting groove, and relative displacement can be generated between the hidden cover plate and the mounting bottom plate so that the hidden cover plate moves into or out of the receiving groove;
[0007] Wherein, after the hidden cover is moved into the receiving groove, the outer end surface of the hidden cover is in the same plane as the top surface of the box body, and the hidden cover can cover the interface; or
[0008] After the hidden cover is moved out of the receiving groove, the interface is exposed to the outside.
[0009] In one embodiment, the outer end surface area of the hidden cover plate is smaller than the inner end surface area of the hidden cover plate.
[0010] In one embodiment, the hidden cover plate is connected to the mounting base plate via a sliding mechanism so that the hidden cover plate can slide into or out of the accommodating groove. The sliding mechanism includes a sliding groove arranged on the mounting base plate and a guide column arranged on the hidden cover plate. The guide column is used to slide in the sliding groove so that the hidden cover plate and the mounting base plate are staggered or fit together.
[0011] In one embodiment, the guide posts are provided in at least one pair, and the pair of guide posts are provided on the hidden cover plate in a symmetrical form about the center line of the hidden cover plate; the number of the slide grooves is the same as the number of the guide posts and corresponds one-to-one with the guide posts.
[0012] In one embodiment, the guide posts each include:
[0013] A connector connected to the hidden cover plate and configured to slide in the slide groove; and
[0014] A guide slider, which is arranged on the end of the connecting body away from the hidden cover plate;
[0015] Wherein, a slide rail is provided on the side wall of the slide groove, and the guide slider is used to slide in the slide rail.
[0016] In one embodiment, a pull-down slot is provided at the end of the slide rail, and the depth of the pull-down slot is greater than the depth of the slide rail, so that after the guide slider slides in the slide rail and enters the pull-down slot, one side surface of the hidden cover plate is completely fitted with the side surface of the installation base plate with an interface.
[0017] In one embodiment, the number of the guide posts is set to two pairs, wherein one pair of the guide posts is arranged at the middle position of the hidden cover plate, and the other pair of the guide posts is arranged at the front position of the hidden cover plate and is arranged in an L shape.
[0018] In one embodiment, a bayonet is provided on the end of the slide slot opposite to the pull-down slot, and the bayonet is used to guide the guide slider into the slide rail.
[0019] In one embodiment, a positioning snap-fit mechanism is further provided between the mounting base plate and the hidden cover plate, and the positioning snap-fit mechanism includes a groove body provided on the mounting base plate and having a lock buckle, and a lock nose provided on the hidden cover plate, wherein the lock nose can move in the groove body and be snap-fitted and connected with the lock buckle.
[0020] In one embodiment, the lock buckle extends along the length direction of the slot body, one end of the lock buckle is connected to the slot body, and the other end of the lock buckle is a free end. The free end of the lock buckle is provided with a protrusion protruding along the slotting direction of the slot body, and the protrusion is used to limit the maximum displacement of the lock nose.
[0021] In one embodiment, the protrusion is transitionally connected to the free end of the lock buckle via an inclined surface.
[0022] Compared with the prior art, the advantages of the present invention are as follows: since relative displacement can occur between the hidden cover and the mounting base plate, when the smart terminal does not need to be connected to other components, the hidden cover can be moved to cover the interface, thereby hiding the interface well, so that the appearance of the smart terminal is richer, and after the hidden cover is moved into the accommodating groove, the outer end surface of the hidden cover and the first side surface of the box body are in the same plane, so that the box body maintains the integrity, consistency and aesthetics of the appearance; and when the smart terminal needs to be connected to other components, the hidden cover can be moved again to leave the interface and expose the interface, so as to facilitate the connection of the smart terminal with other components. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.
[0024] Figure 1 is a schematic diagram of the three-dimensional structure of an intelligent terminal in an embodiment of the present invention;
[0025] Figure 2 is a schematic diagram of a three-dimensional structure in which a hidden cover plate and an installation base plate of a smart terminal are staggered with each other in an embodiment of the present invention;
[0026] Figure 3 is an exploded diagram of a smart terminal in an embodiment of the present invention;
[0027] Figure 4 and Figure 5 is a schematic diagram of a three-dimensional structure of a mounting base plate in an embodiment of the present invention;
[0028] Figure 6 is a schematic diagram of the three-dimensional structure of the hidden cover plate in an embodiment of the present invention;
[0029] Figure 7 is a schematic diagram of assembling a hidden cover plate and a mounting base plate in an embodiment of the present invention;
[0030] Figure 8 is a cross-sectional view of an embodiment of the present invention when the hidden cover plate and the installation base plate are staggered with each other;
[0031] Fig. 9It is a cross-sectional view of the hidden cover plate and the installation base plate when they are attached to each other in the embodiment of the present invention.
[0032] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.
[0033] In the figure: 1-hidden cover plate; 10-guide column; 11-guide slider; 12-connector; 13-lock nose;
[0034] 2-mounting base plate; 21-trough body; 22-slide groove; 23-locking buckle; 221-bayonet; 222-slide rail; 223-pull-down slot; 231-protrusion; 232-inclined surface; 233-reinforcement rib;
[0035] 3-box body; 31-accommodating slot. DETAILED DESCRIPTION
[0036] The present invention will be further described below in conjunction with the accompanying drawings.
[0037] like Figure 1-3 As shown, the smart terminal of the present invention, especially electronic products such as chargers and routers, includes: a box body 3, a mounting base plate 2 arranged on one side of the box body 3 and having an interface (not shown), and a hidden cover plate 1 arranged on the side of the mounting base plate 2 with the interface, wherein the interface can be an electrical interface and a mechanical interface, the electrical interface such as a charging interface and / or a communication interface, and the mechanical interface such as screws, bolts, etc.
[0038] like Figure 1-3 as well as Figure 8 As shown, the box body 3 is constructed as a hexahedral structure surrounded by a top surface, a bottom surface and four side surfaces, such as a rectangular parallelepiped or a cube structure. The upper end surface of the box body 3 is the top surface a, and the two opposite side surfaces located on both sides of the top surface a are the second side surface b and the third side surface c respectively. The mounting base plate 2 is fixedly connected to the box body 3. For example, the top surface a of the box body 3 can be sequentially provided with a mounting groove for accommodating the mounting base plate 2 and a receiving groove 31 for accommodating the hidden cover plate 1, and the mounting groove extends in a direction perpendicular to the top surface a (i.e., the height direction of the box body 3). The receiving groove 31 can be arranged below the mounting groove (such as Figure 8 The accommodating groove 31 (as shown) also extends in a direction perpendicular to the top surface a (ie, the height direction of the box body 3).
[0039] The mounting base plate 2 is arranged in the mounting groove, that is, the mounting base plate 2 can be embedded in the box body 3 to maintain the appearance of the box body 3. The mounting base plate 2 can be fixedly connected with the mounting groove by screws, for example.
[0040] A relative displacement can be generated between the hidden cover 1 and the mounting base plate 2 so that the hidden cover 1 can be moved into or out of the mounting groove, so that the hidden cover 1 can cover the interface, or expose the interface to the outside world. Then, when the smart terminal does not need to be connected to other components, the relative position of the hidden cover 1 and the mounting base plate 2 can be changed so that the hidden cover 1 covers the interface; and when the smart terminal needs to be connected to other components, the relative position of the hidden cover 1 and the mounting base plate 2 can be changed again so that the hidden cover 1 exposes the interface to the outside world for easy connection.
[0041] Moreover, after the hidden cover 1 is moved into the receiving groove 31, the outer end surface of the hidden cover 1 and the top surface a of the box body 3 are in the same plane. In other words, after the hidden cover 1 is moved into the receiving groove 31, the bottom surface and the four side surfaces of the hidden cover 1 are all accommodated in the receiving groove 31, and the exposed outer end surface (upper end surface) of the hidden cover 1 is flush with the upper end surface of the box body 3, so that the box body 3 can maintain its beautiful hexahedral shape without any exposed protrusions or recessed parts, so as to meet the user's requirements for the aesthetics of the smart terminal.
[0042] In addition, in order to facilitate the hidden cover plate 1 to be accommodated in the receiving groove 31, the area of the outer end surface (i.e., the bottom surface) of the hidden cover plate 1 is set to be smaller than the area of the inner end surface (i.e., the top surface), for example, a chamfer 14 (e.g., Figure 6 Thus, when the hidden cover 1 covers the interface on the mounting base plate 2, it is completely contained in the box body 3, so that the appearance of the smart terminal does not have any protrusions or exposed parts. When it is applied to a specific product, it can achieve better use effect and appearance effect.
[0043] In some embodiments, the relative displacement between the mounting base plate 2 and the hidden cover plate 1 is achieved by a sliding mechanism connected between the two. Figure 7-9 As shown, the hidden cover 1 can be moved relative to the mounting base plate 2 through a sliding mechanism so that the hidden cover 1 can slide into or out of the receiving groove 31, and the hidden cover 1 and the mounting base plate 2 can be detachably connected. This structural design can realize the push-pull opening and closing of the hidden cover 1.
[0044] Furthermore, the hidden cover plate 1 slides between the second side surface b and the third side surface c. Figure 8 As shown, when the hidden cover 1 slides into the receiving groove 31, the hidden cover 1 enters the receiving groove 31 from the second side b and moves to the third side c; when the hidden cover 1 slides out of the receiving groove 31, the hidden cover 1 leaves the receiving groove 31 from the third side c.
[0045] In other embodiments, the relative displacement between the installation base plate 2 and the hidden cover plate 1 can be achieved by rotating the hidden cover plate 1 relative to the installation cover plate 2 through a rotating mechanism.
[0046] In other embodiments, the relative displacement between the mounting base plate 2 and the hidden cover plate 1 can also be achieved by snap-fitting or the like. By arranging the hidden cover plate 1 and the mounting base plate 2 to be detachably connected, the purpose of the hidden cover plate 1 covering the interface or exposing the interface to the outside world can be achieved.
[0047] It can be understood that the relative displacement between the hidden cover plate 1 and the mounting base plate 2 can also be achieved by other known methods, which will not be elaborated in the present invention.
[0048] The present invention is described in detail below by taking the sliding mechanism as an example.
[0049] The sliding mechanism includes a slide groove 22 (such as Figure 4 and 5 As shown) and the guide column 10 (as shown) provided on the hidden cover plate 1 Figure 6 As shown in FIG. 1 ), the guide column 10 is used to slide in the slide groove 22 so that the hidden cover plate 1 and the installation base plate 2 are staggered or fitted with each other.
[0050] The number of guide posts 10 can be two (i.e., a pair) or more. Generally, in order to maintain the smooth movement of the hidden cover 1, the guide posts 10 are always arranged in pairs. A pair of guide posts 10 is arranged with respect to the center line L (e.g., Figure 6 The number of the slide grooves 22 is the same as the number of the guide posts 10 and they are arranged on the mounting base plate 2 in a one-to-one correspondence with the guide posts 10.
[0051] The guide columns 10 each include a connector 12 and a guide slider 11, wherein the connector 12 is connected to the hidden cover 1, and the guide slider 11 is arranged on the end of the connector 12 away from the hidden cover 1, that is, the two ends of the connector 12 are respectively connected to the hidden cover 1 and the guide slider 11, and the guide slider 11, the connector 12 and the hidden cover 1 can be arranged in an integrated manner.
[0052] In addition, a slide rail 222 is provided on the side wall of the slide groove 22 to guide the guide column 10 . When the connector 12 slides back and forth in the slide groove 22 , the guide slider 11 slides in the slide rail 222 at the same time.
[0053] Take the guide posts 10 as two pairs (i.e., four pairs) as an example. One pair of guide posts 10 is arranged in the middle of the hidden cover 1, and the other pair of guide posts 10 is arranged in the front of the hidden cover 1. The pair of guide posts 10 arranged in the front of the hidden cover 1 has an L-shaped connector 12 (e.g., Figure 6 As shown); a pair of guide columns 10 are arranged in the middle of the hidden cover plate 1, and their connecting body 12 is columnar as a whole and perpendicular to the surface of the hidden cover plate 1.
[0054] Since the connecting body 12 slides in the slide groove 22 and the guide slider 11 slides in the slide rail 222 at the same time, the stability of the hidden cover body 1 can be guaranteed during the sliding process, and under the condition that the slide groove 22 and the connecting body 12 match in size, the phenomenon of the hidden cover body 1 swinging left and right when being pushed and pulled can be avoided to the greatest extent.
[0055] It is understandable that if only one pair of guide posts 10 is used in a product application, it is preferred to use the guide posts 10 with the L-shaped connector 12 .
[0056] If two pairs of guide posts 10 are used in a product application, it is preferred that the guide posts 10 on the same side are located on the same straight line. Figure 6 As shown, the guide posts 10 on both sides of the center line L are located on a straight line parallel to the center line L, so that the guide posts 10 can better cooperate with the slide groove 22, and the design is simpler and the operation is more convenient.
[0057] In addition, since the slide grooves 22 correspond to the guide posts 10 one by one, the slide grooves 22 are also symmetrically arranged on the mounting base plate 2 .
[0058] In some embodiments, the guide slider 11 is configured as a cylindrical structure extending in a direction perpendicular to the side wall of the connecting body 12 . In other words, the axial direction of the guide slider 11 is consistent with the width direction of the slide groove 22 .
[0059] In a preferred embodiment, the guide slider 11 can also be configured as a sphere embedded in the connector 12. Generally, the guide slider 11 is made of plastic, and since plastic has a certain expansion space, the spherical guide slider 11 can be pressed into the slide rail 222 under the action of external force.
[0060] Furthermore, since a guide slider 11 is provided on the connecting body 12, the width of the guide column 10 is slightly larger than the width of the slide groove 22. In order to be able to smoothly place the guide slider 11 into the slide groove 22 in the initial state (that is, when the hidden cover body 1 is not connected to the mounting base plate 2), a corresponding snap-in 221 is opened at one end of the slide groove 22 (the end opposite to the pull-down slot 223 described below), which is used to guide the guide slider 11 into the slide rail 222.
[0061] By applying downward force to the guide column 10, it is slightly deformed so that it can be inserted into the slide groove 22. Since the slide rail 222 is provided in the slide groove 22, its width will increase, so the connector 12 at the slide rail 222 will not be constrained and can enter the slide rail 222 under the action of its own restoring force.
[0062] Furthermore, a pull-down slot 223 is provided at one end of the slide rail 222, and the depth of the pull-down slot 223 (i.e., the height direction of the mounting base 2) is greater than the depth of the slide rail 222. During use, the connector 12 slides in the slide groove 22, and the guide slider 11 slides into the pull-down slot 223 (such as Figure 8 and 9 As shown in the figure, since the depth of the pull-down slot 223 is greater than the depth of the slide rail 222, when the guide slider 11 slides into the pull-down slot 223, the height of the hidden cover 1 will drop slightly, so that one side surface of the hidden cover 1 can be completely fitted with the side surface of the installation base plate 2 with the interface, thereby completely covering the interface.
[0063] It can be understood that one pull-down slot 223 accommodates one guide slider 11 , so the number of the pull-down slots 223 is the same as the number of the guide sliders 11 .
[0064] On the basis of the above solution, in order to achieve a seamless engagement between the installation base plate 2 and the hidden cover plate 1 , a positioning engagement mechanism is further provided between the installation base plate 2 and the hidden cover plate 1 .
[0065] Specifically, the positioning and locking mechanism includes a slot body 21 provided at the middle of the mounting base plate 2 and having a lock buckle 23 , and a lock nose 13 provided on the hidden cover plate 1 . The lock nose 13 can move in the slot body 21 and be locked with the lock buckle 23 .
[0066] like Figure 6 As shown, the lock nose 13 can be arranged at the middle position of the hidden cover plate 1, for example, between two guide pillars 10 located in the middle. The lock nose 13 can be arranged integrally with the hidden cover plate 1, and can be fixedly assembled on the hidden cover plate 1.
[0067] like Figure 4 and 5 As shown, the lock buckle 23 extends along the length direction of the groove body 21, one end of the lock buckle 23 is connected to the groove body 21, and the other end of the lock buckle 23 is a free end (i.e., end A). The free end of the lock buckle 23 is provided with a protrusion 231 protruding along the groove direction of the groove body 21, and the protrusion 231 is used to limit the maximum displacement of the lock nose 13.
[0068] For example, the lock buckle 23 can be set to a long strip shape, and the length of the lock buckle 23 is half the length of the groove body 21. The reason for this design is to ensure that the lock nose 13 has a certain movement space in the groove body 21 (the part of the groove body 21 that the lock buckle 23 does not touch), while the lock buckle 23 has a certain space to deform up and down.
[0069] The protrusion 231 and the free end of the lock buckle 23 are transitionally connected by an inclined surface 232. Therefore, when the lock nose 13 moves to the protrusion 231 in the groove body 21, the inclined surface 232 can easily engage the bottom end of the lock buckle 23 and slightly lift the lock buckle 23 so that the lock buckle 23 and the lock nose 13 are engaged with each other.
[0070] Generally, the lock buckle 23 is made of plastic. Since plastic has a certain toughness, a protrusion 231 is provided at the free end of the lock buckle 23 to limit the maximum displacement of the lock nose 13, and an inclined surface 232 is provided between the protrusion 231 and the free end of the lock buckle 23, so that the lock nose 13 can slide along the inclined surface 232 into the lower end of the protrusion 231 to slightly lift the lock buckle 23.
[0071] When in use, when the guide post 10 slides along the slide slot 22, the lock nose 13 also moves in the slot body 21 until the guide slider 11 falls into the corresponding pull-down slot 223 (such as Fig. 9 As shown in the figure, the lock nose 13 also just passes over the protrusion 231 on the lock buckle 23 and engages with the lock buckle 23, thereby ensuring that the hidden cover body 1 will not be separated from or loosened from the mounting base plate 2 without the push of external force. However, due to the toughness of the lock buckle 23, the lock nose 13 can be separated from the lock buckle 23 and moved out of the groove body 21 under the action of a slight external force. When the lock nose 13 is separated from the lock buckle 23 by external force, the inclined surface 232 between the protrusion 231 and the free end of the lock buckle 23 can make the lock nose 13 more easily pushed out of the lock buckle 23, so that the hidden cover plate 1 can be gently slid out with a small force, thereby exposing the interface on the mounting base plate 2.
[0072] In addition, when the protrusion 231 is formed at the free end of the lock buckle 23, the other side thereof will be concave downward accordingly. Therefore, in order to increase the strength, a reinforcing rib 233 (such as Figure 4 as shown).
[0073] It should be noted that Figure 2 , Figure 3 , Figure 7 as well as Figure 8 The arrow in shows the moving direction of the hidden cover 1.
[0074] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An intelligent terminal, comprising a box body, wherein the box body is constructed as a hexahedral structure surrounded by a top surface, a bottom surface and four side surfaces, characterized in that: It also includes a mounting base plate with an interface and a hidden cover plate, wherein the interface is an electrical interface or a mechanical interface, and the hidden cover plate is arranged on a side of the mounting base plate with the interface; The top surface of the box body is sequentially provided with a receiving groove and a mounting groove extending in a direction perpendicular to the top surface, the mounting bottom plate is fixed in the mounting groove, and relative displacement can be generated between the hidden cover plate and the mounting bottom plate so that the hidden cover plate moves into or out of the receiving groove; Wherein, after the hidden cover is moved into the receiving groove, the outer end surface of the hidden cover is in the same plane as the top surface of the box body, and the hidden cover can cover the interface; or After the hidden cover is moved out of the receiving groove, the interface is exposed to the outside; The hidden cover plate is connected to the mounting base plate via a sliding mechanism so that the hidden cover plate can slide into or out of the receiving groove, the sliding mechanism comprising a sliding groove arranged on the mounting base plate and a guide column arranged on the hidden cover plate, the guide column being used to slide in the sliding groove so that the hidden cover plate and the mounting base plate are staggered or fitted with each other; The guide columns all include: A connector connected to the hidden cover plate and configured to slide in the slide groove; and A guide slider, which is arranged on the end of the connecting body away from the hidden cover plate; Wherein, a slide rail is provided on the side wall of the slide groove, and the guide slider is used to slide in the slide rail; A pull-down slot is provided at the end of the slide rail, and the depth of the pull-down slot is greater than the depth of the slide rail, so that after the guide slider slides in the slide rail and enters the pull-down slot, one side surface of the hidden cover plate is completely fitted with the side surface of the installation base plate with an interface. When the hidden cover plate is completely fitted with the side of the installation base plate with the interface, the hidden cover plate covers the interface.
2. The intelligent terminal according to claim 1, characterized in that: The outer end surface area of the hidden cover plate is smaller than the inner end surface area of the hidden cover plate.
3. The intelligent terminal according to claim 1 or 2, characterized in that: The guide posts are at least arranged in a pair, and the pair of guide posts are arranged on the hidden cover plate in a symmetrical form about the center line of the hidden cover plate; the number of the slide grooves is the same as the number of the guide posts and corresponds to the guide posts one by one.
4. The intelligent terminal according to claim 1 or 2, characterized in that: The number of the guide posts is set to two pairs, wherein one pair of the guide posts is arranged at the middle position of the hidden cover plate, and the other pair of the guide posts is arranged at the front position of the hidden cover plate and is arranged in an L shape.
5. The intelligent terminal according to claim 4, characterized in that: A bayonet is provided on one end of the slide slot opposite to the pull-down bayonet, and the bayonet is used to guide the guide slide block into the slide rail.
6. The intelligent terminal according to claim 1 or 2, characterized in that: A positioning and locking mechanism is also provided between the mounting base and the hidden cover. The positioning and locking mechanism comprises a groove body provided on the mounting base and having a lock buckle, and a lock nose provided on the hidden cover. The lock nose can move in the groove body and is connected to the lock buckle by locking.
7. The intelligent terminal according to claim 6, characterized in that: The lock buckle extends along the length direction of the slot body, one end of the lock buckle is connected to the slot body, and the other end of the lock buckle is a free end. The free end of the lock buckle is provided with a protrusion protruding along the slotting direction of the slot body, and the protrusion is used to limit the maximum displacement of the lock nose; the protrusion and the free end of the lock buckle are transitionally connected by an inclined surface.
Citation Information
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