Connecting lock and display screen

Abstract

The utility model belongs to the technical field of display, and particularly relates to a connecting lock and a display screen. A lock seat of the connecting lock is installed on the box body, an inserting hole of the lock seat is right opposite to the control box, a spring bolt is installed on the control box, an inserting-connecting end of the spring bolt is right opposite to the inserting hole, a pressing assembly is installed on the control box, and one end of a pressing rod of the pressing assembly protrudes towards the box body and is located above a locking piece. When the control box and the box body need to be locked and connected, the insertion end of the spring bolt is correspondingly inserted into the insertion hole, the connection operation does not need an external tool, the operation is simple, and the requirement on the operation space is low. When the control box and the box body need to be disassembled, the pressing rod is pressed, the pressing rod moves and abuts against the locking piece and the ejector rod in sequence, the spring bolt can be ejected out of the inserting hole of the lock base under the action of the abutting force of the ejector rod, the spring bolt is separated from the lock base so that the spring bolt can be unlocked, then the control box is taken down from the box body, and only the pressing rod on the control box needs to be pressed in the disassembling process. The operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the field of display technology, and more specifically, relates to a connection lock and a display screen. Background Art

[0002] The display screen usually includes a cabinet, a display module and a control box, wherein the display module and the control box are both installed on the cabinet, and the control box supplies power to the display module and controls the display effect of the display module.

[0003] In the related art, a control box is usually fixed on the box body by multiple screws, or the control box is directly clamped on the box body by a snap-on structure. Among them, the control box is fixed by screws, and the installation and disassembly operations are complicated, time-consuming and labor-intensive. When the control box is clamped by the snap-on structure, it is also necessary to loosen the snaps one by one when disassembling and repairing the control box before the control box can be removed. During installation, multiple snap-on structures need to be clamped one by one. The disassembly and assembly process is still relatively cumbersome. In actual use, the disassembly and assembly efficiency of the control box is difficult to effectively improve. Utility Model Content

[0004] The purpose of the embodiments of the utility model is to provide a connection lock and a display screen, so as to solve the technical problems in the related art that the disassembly and assembly operation of the control box of the display screen is complicated and the disassembly and assembly efficiency is difficult to improve.

[0005] The technical solution adopted by the utility model is: to provide a connection lock, including:

[0006] A lock tongue, used for being mounted on the first body, and having a plug-in end;

[0007] A lock seat, used for being installed on the second main body, and the lock seat is provided with a socket for the plug-in end to be inserted;

[0008] A pressing assembly, comprising a pressing rod movably mounted on the first body;

[0009] The locking piece and the ejector rod are movably mounted on the lock seat, the locking piece can be moved from the locking position to the unlocking position on the lock seat, and the ejector rod is used to withstand the pressure of the pressure rod to eject the plug end from the socket;

[0010] Among them, when the plug-in end is inserted into the socket and the locking plate is in the locking position, the locking plate is connected to the plug-in end so that the lock tongue is locked to the lock seat. When the pressure rod moves toward the lock seat, the pressure rod can press the locking plate to move the locking plate from the locking position to the unlocking position, and when the locking plate moves to the unlocking position, the pressure rod can also press the push rod to move so that the push rod pushes the lock tongue and pushes the plug-in end out of the socket.

[0011] In some embodiments, the locking piece is provided with a locking hole for the plug-in end to be inserted into, the locking hole is arranged opposite to the plug-in end along the axial direction of the plug-in end, and the plug-in end is provided with a card slot;

[0012] When the plug-in end is inserted into the plug hole and the locking piece is in the locking position, the plug-in end is inserted into the locking hole, and the locking piece is located at the edge of the locking hole and is locked into the card slot;

[0013] When the pressing rod presses the locking piece to move to the unlocking position, the part of the locking piece inserted into the slot is released from the slot, so that the ejector rod can eject the plug-in end from the lock hole.

[0014] In some embodiments, the locking plate is elastically connected to the lock seat through a first elastic member. When the plug-in end is inserted into the insertion hole and the locking plate is in the locked position, the first elastic member naturally stretches and elastically pushes the locking plate so that the locking plate is located at the edge of the lock hole and is stuck in the slot. When the pressure rod presses the locking plate to move to the unlocking position, the locking plate squeezes the first elastic member and elastically contracts under the action of the pressure of the pressure rod, so that the part of the locking plate stuck in the slot is out of the slot.

[0015] In some embodiments, the plug-in end is provided with a first guide surface. When the first elastic member is in a naturally extended state, the edge of the locking hole protrudes relative to the inner wall of the plug-in hole. The first guide surface is used to cooperate with the portion of the locking plate protruding from the inner wall of the plug-in hole after the plug-in end is inserted into the plug-in hole, so as to press the locking plate to move toward the unlocking position, thereby guiding the plug-in end to be inserted into the locking hole, and the card slot is provided above the first guide surface.

[0016] In some embodiments, the lock seat is provided with a limiting groove, and at least a portion of the locking plate is slidably inserted in the limiting groove, and the limiting groove is used to guide the locking plate to move between the locking position and the unlocking position along a direction perpendicular to the axial direction of the lock hole.

[0017] In some embodiments, the lock seat has an installation cavity, the locking plate is inserted into the installation cavity and has a pressure-bearing end extending from the installation cavity, the moving direction of the pressure rod is parallel to the axial direction of the socket, and the end of the pressure rod away from the first body is provided with a second guide surface inclined relative to the axial direction of the socket, and the second guide surface is used to cooperate with the pressure-bearing end to press the locking plate to move toward the unlocking position.

[0018] In some embodiments, the push rod is pivotally connected to the lock seat through a pin shaft, one end of the push rod is located below the socket and is used to abut against the plug end when the plug end is inserted into the socket, and the other opposite end of the push rod is located below the pressure end for the pressure rod to press against.

[0019] In some embodiments, the pressing assembly also includes a fixing seat and a second elastic member, the fixing seat is used to be detachably mounted on the first body, the pressure rod is movably mounted on the fixing seat and elastically connected to the fixing seat through the second elastic member, and can move between a first position and a second position relative to the fixing seat.

[0020] In some embodiments, the pressing assembly further includes a sealing cover, the pressing rod has a pressing end for extending from the mounting hole of the first body for pressing, and the sealing cover is disposed on the pressing end and is used to seal the mounting hole.

[0021] The above one or more technical solutions in the connecting lock provided by the utility model have at least one of the following technical effects: when the connecting lock of the present application is used, the lock tongue is installed on the first body, and the lock seat is installed on the second body, so that the first body and the second body can be connected through the locking cooperation between the lock tongue and the lock seat. For example, the first body can be a control box of a display screen, and the second body can correspond to a box of the display screen. The locking member is adapted to engage the locking member and to engage with the locking member when the locking member is in a locked position and the locking member is engaged with the locking member. In this way, when using the connecting lock of the present application to connect the box body and the control box of the display screen, it is only necessary to install the lock seat on the box body, and install the lock tongue and the pressure rod on the control box. The box body and the control box are connected through the lock tongue and the pressure rod in cooperation with the lock seat and the lock plate and the push rod installed on the lock seat. In actual use, when the control box needs to be installed, the plug-in end of the lock tongue is aligned with the socket of the lock seat, and the control box is pressed with force to insert the plug-in end into the socket. When the control box needs to be removed, the operator presses the pressure rod installed on the control box by hand so that the pressure rod moves to push the plug-in end of the lock tongue out of the socket. The disassembly and assembly of the control box is simple, and the disassembly and assembly of the control box can be achieved with one hand. The operation is quick and convenient. In addition, for a display screen with front and rear inspection channels, it can be operated in both the front channel and the rear channel to disassemble and assemble the control box, which has strong practicality.

[0022] Another technical solution adopted by the utility model is to provide a display screen, including a box body and a control box, the display screen also includes a plurality of the above-mentioned connecting locks, the control box is a first main body, and the box body is a second main body.

[0023] The display screen provided by the utility model connects the box body and the display module of the display screen by using the above-mentioned connecting lock. When in use, it only needs to install the lock seat of the connecting lock on the box body, and at the same time install the lock tongue and the pressure rod of the pressing group on the control box. The box body and the control box are connected by the lock tongue and the pressure rod, the lock seat, the lock plate and the push rod installed on the lock seat. The assembly is simple and the operation is convenient, and the efficiency of disassembly, assembly and maintenance of the control box can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 An assembly view of a first body and a second body connected by a connecting lock provided by an embodiment of the utility model;

[0026] Figure 2 An assembly view of the locking tongue and the pressing assembly of the connecting lock provided by the embodiment of the utility model when they are installed on the first body;

[0027] Figure 3 An assembly view of a lock base of a connecting lock provided by an embodiment of the utility model when it is installed on a second body;

[0028] Figure 4 A schematic diagram of the structure of a connection lock provided in one embodiment of the utility model;

[0029] Figure 5 for Figure 4 A schematic structural diagram of a locking piece of a connecting lock shown;

[0030] Figure 6 for Figure 4 A structural schematic diagram of a lock tongue of a connecting lock shown;

[0031] Figure 7 for Figure 4 A structural schematic diagram of a lock seat of a connecting lock shown;

[0032] Figure 8 for Figure 7 A cross-sectional view of the lock seat shown;

[0033] Fig. 9 for Figure 4 A schematic structural diagram of a pressing assembly of a connecting lock shown;

[0034] Fig.10 for Fig. 9 A cross-sectional view of the pressing assembly shown;

[0035] Fig.11 A cross-sectional view of the position of the connection lock when the lock tongue installed in the control box is unlocked from the lock seat installed in the box body;

[0036] Fig.12 A cross-sectional view of the connection lock position when the lock tongue installed on the control box is locked on the lock seat installed on the box body;

[0037] Fig.13 It is a cross-sectional view of the connection lock when the lock tongue installed in the control box is unlocked from the lock seat installed in the box body, and the pressure rod pushes the lock plate to move to the unlocking position;

[0038] Fig.14 The cross-sectional view of the connection lock is when the lock tongue installed on the control box is unlocked from the lock seat installed on the box body, and the pressure rod pushes the ejector rod to eject the plug end of the lock tongue from the plug hole.

[0039] Among them, the reference numerals in the figure are:

[0040] 1. first main body; 101. screw hole; 102. mounting hole;

[0041] 2. Second subject;

[0042] 10. Connecting lock; 11. Lock tongue; 111. Plug end; 1111. Card slot; 1112. First guide surface; 12. Lock seat; 121. Insertion hole; 122. Limiting groove; 123. Mounting cavity; 13. Pressing assembly; 131. Pressing rod; 1311. Second guide surface; 1312. Pressing end; 131. Fixed seat; 132. Second elastic member; 133. Sealing cover; 14. Locking piece; 141. Locking hole; 142. Pressure end; 15. Push rod; 151. Pin shaft; 16. First elastic member;

[0043] 100. Control box;

[0044] 200. Cabinet. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the following is a summary of the technical problems, technical solutions and beneficial effects to be solved by the present invention. Figures 1 to 14 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the terms "length", "width", "up", "down", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] References to "one embodiment", "some embodiments" or "an embodiment" described in the specification of the utility model mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in the specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. In addition, in one or more embodiments, specific features, structures or characteristics can be combined in any suitable manner.

[0050] The display screen usually includes a cabinet, a display module and a control box, wherein the display module and the control box are both installed on the cabinet, and the control box supplies power to the display module and controls the display effect of the display module.

[0051] In the related art, the control box is usually fixedly installed on the box body by multiple screws, or the control box is directly clamped on the box body by using a snap-on structure. Among them, the power box is fixedly installed on the box body by screws, and the installation and disassembly operations of the power box are complicated, time-consuming and labor-intensive. When the control box is clamped on the box body by using the snap-on structure, when disassembling and repairing the control box, it is necessary to loosen the snaps one by one before the control box can be removed. During installation, multiple snap-on structures need to be clamped one by one. The disassembly and assembly process is still relatively cumbersome. In actual use, the disassembly and assembly efficiency of the control box is difficult to effectively improve.

[0052] Based on this, the present application provides a connection lock that can be used to reliably lock the control box to the box body and can achieve rapid disassembly and assembly of the control box.

[0053] like Figures 1 to 3As shown, in this embodiment, the connection lock 10 includes a lock seat 12 and a lock tongue 11, the lock tongue 11 is used to be installed on the first body 1, and the lock seat 12 is used to be installed on the second body 2, wherein the first body 1 is a structure that can be assembled and disassembled with the second body 2, for example, the first body 1 can be a control box 100 of a display screen, and the second body 2 can be a box 200. Of course, in other embodiments, the first body 1 and the second body 2 can also be other mutually connected and matched structures, and the box 200 of the display screen and the control box 100 are only exemplary here, and should not be understood as the only limitation on the first body 1 and the second body 2.

[0054] In this embodiment, please combine Figure 4 and Figure 12 to Figure 14 The connection lock 10 further includes a pressing assembly 13, which includes a pressing rod 131. The pressing rod 131 is movably mounted on the first body 1. The lock tongue 11 has a plug-in end 111. The lock seat 12 is provided with a socket 121 for the plug-in end 111 to be inserted. The lock seat 12 is also movably mounted with a locking piece 14 and a push rod 15, wherein the locking piece 14 can be moved from a locked position to an unlocked position on the lock seat 12, and the push rod 15 is used to withstand the pressure of the pressing rod 131 to push the plug-in end 111 out of the socket 121. When in use, when the plug-in end 111 of the lock tongue 11 is inserted into the socket 121 and the locking piece 14 is in the locked position, the locking piece 14 is connected to the plug-in end 111 so that the lock tongue 11 is locked to the lock seat 12. Fig.12 When unlocking is required, force is applied to press the pressure rod 131. When the pressure rod 131 moves toward the lock seat 12, the pressure rod 131 can press the locking plate 14 so that the locking plate 14 moves from the locked position to the unlocked position, such as Fig.13 As shown, when the lock piece 14 moves to the unlocking position, the pressing rod 131 can also press the push rod 15 to move, so that the push rod 15 pushes the lock tongue 11 and pushes the plug end 111 out of the plug hole 121, as shown in FIG. Fig.14 shown.

[0055] It can be understood that in this embodiment, the "locking position" refers to the position of the lock plate 14 on the lock seat 12, which is a position that enables the plug end 111 of the lock tongue 11 to connect with the lock tongue 11. Fig.12 "Unlock position" means: the position of the lock plate 14 in the lock seat 12, so that the plug end 111 can be ejected by the ejector rod 15, such as Fig.13 and Fig.14 The position where the middle lock tongue 11 is located.

[0056] When the connecting lock 10 of the embodiment of the present application is used, the lock tongue 11 is installed on the first body 1, and the lock seat 12 is installed on the second body 2, so that the first body 1 and the second body 2 can be connected through the locking cooperation between the lock tongue 11 and the lock seat 12. For example, the first body 1 can be a control box 100 of a display screen, and the second body 2 can correspond to a box 200 of a display screen. Specifically, the lock seat 12 is provided with a socket 121, and the lock tongue 11 has a plug-in end 111 plugged with the socket 121. The connection lock 10 also includes a pressing assembly 13, and the pressing assembly 13 includes a pressure rod 131 movably installed on the first body 1. The lock seat 12 is also provided with a movable locking piece 14 and a push rod 15; wherein the locking piece 14 can move back and forth between the locking position and the unlocking position on the lock seat 12. When the plug-in end 111 of the lock tongue 11 is inserted into the socket 121 and the locking piece 14 is in the locking position, the locking piece 14 is connected to the plug-in end 111 to lock the lock tongue 11 to the lock seat 12. At this time, the connection between the first body 1 and the second body 2 can be realized, such as realizing the connection between the control box 100 of the display screen and the box body 200, such as Fig.12 As shown; when the first body 1 and the second body 2 need to be separated, the operator applies force to drive the pressure rod 131 to move relative to the first body 1, so that the pressure rod 131 moves toward the lock seat 12. During the movement, the pressure rod 131 presses the lock plate 14 to push the lock plate 14 from the locked position to the unlocked position, as shown in FIG. Fig.13 As shown, the pressing rod 131 then continues to move and presses the ejector rod 15 to push the lock tongue 11 to move, so as to eject the plug end 111 of the lock tongue 11 from the insertion hole 121, as shown in FIG. Fig.14 As shown, the lock tongue 11 is separated from the lock seat 12 to achieve unlocking. At this time, the first body 1 and the second body 2 can be separated.

[0057] In this way, when using the connecting lock 10 of the present application to connect the box 200 and the control box 100 of the display screen, it is only necessary to install the lock seat 12 on the box 200, and install the lock tongue 11 and the pressure rod 131 on the control box 100, and the box 200 and the control box 100 are connected by the lock tongue 11 and the pressure rod 131 cooperating with the lock seat 12 and the lock plate 14 and the top rod 15 installed on the lock seat 12. In actual use, when the control box 100 needs to be installed, the plug-in end 111 of the lock tongue 11 is aligned with the socket 121 of the lock seat 12, and the control box 100 is pressed with force to insert the plug-in end 111 into the socket 121. When the control box 100 needs to be disassembled, the operator presses the pressure rod 131 installed on the control box 100 by hand to make the pressure rod 131 move to push the plug-in end 111 of the lock tongue 11 out of the socket 121. The disassembly and assembly of the control box 100 is simple and can be achieved by one-handed operation. The operation is fast and convenient. For display screens with front and rear inspection channels, the control box 100 can be disassembled and assembled in both the front and rear channels, which has strong practicality.

[0058] In some embodiments, please combine Figures 4 to 6 ,and Figure 12 to Figure 14 In this embodiment, the locking piece 14 is provided with a locking hole 141 for the plug-in end 111 to be inserted into, the locking hole 141 is arranged along the axial direction of the plug-in end 121 and is directly opposite to the plug-in end 121, and the plug-in end 111 is provided with a card slot 1111; wherein, when the plug-in end 111 is inserted into the plug-in end 121 and the locking piece 14 is in the locking position, the plug-in end 111 is inserted into the locking hole 141, and the locking piece 14 is located at the edge of the locking hole 141 and is carded into the card slot 1111, as shown in FIG. Fig.12 When the pressure rod 131 presses the lock piece 14 to move to the unlocking position, the portion of the lock piece 14 inserted into the slot 1111 comes out of the slot 1111, so that the ejector rod 15 can eject the plug end 111 from the lock hole 141, as shown. Fig.13 and Fig.14 shown.

[0059] In this embodiment, the locking hole 141 is located below the insertion hole 121 along the axial direction of the insertion hole 121, wherein the axial direction of the insertion hole 121 is along the Figures 11 to 14 The size of the lock hole 141 is larger than that of the plug hole 121, that is, along the axial direction of the plug hole 121, the lock hole 141 is arranged around the plug hole 121, so that the plug end 111 can be inserted into the lock hole 141 more smoothly.

[0060] In this embodiment, a card slot 1111 is provided at the plug-in end 111 of the lock tongue 11 to cooperate with the lock plate 14. When the lock plate 14 is in the locking position, the lock plate 14 is located at the edge of the lock hole 141 and is inserted into the card slot 1111. The plug-in end 111 is engaged with the lock plate 14, thereby limiting the lock tongue 11 from moving upward in the direction indicated by the arrow F2, so that the plug-in end 111 of the lock tongue 11 cannot fall out of the insertion hole 121, thereby locking the lock tongue 11 to the lock seat 12. When unlocking is required, the pressure rod 131 pushes the lock plate 14 to move to the unlocking position, and the part of the lock plate 14 that is inserted into the slot 1111 is disengaged from the slot 1111, that is, the lock plate 14 cannot restrict the movement of the lock tongue 11 in the direction indicated by F2. At this time, the pressure rod 131 continues to press the push rod 15, and the push rod 15 can push the lock tongue 11 to move upward in the direction indicated by F2, thereby pushing the plug end 111 out of the socket 121 of the lock seat 12, so that the lock tongue 11 is separated from the lock seat 12, and the unlocking is completed.

[0061] In a specific embodiment, Figure 2 , Figure 6 and Fig.12As shown, the other end of the locking tongue 11 opposite to the plug-in end 111 is used for detachable connection with the first body 1. Exemplarily, a screw hole 101 is provided on the first body 1, and the locking tongue 11 is provided with an external thread adapted to the screw hole 101. The locking tongue 11 is screwed to the screw hole 101 of the first body 1, or a clamping structure can be provided between the locking tongue 11 and the first body 1 to clamp the locking tongue 11 and the first body 1.

[0062] In a specific embodiment, Figure 2 and Figure 6 As shown, the locking tongue 11 is a rod, and the locking groove 1111 is an annular groove arranged around the plug-in end 111 of the locking tongue 11, so as to facilitate the corresponding locking of the locking piece 14.

[0063] In this embodiment, if Figure 4 , Figure 8 ,and Figure 12 to Figure 14 As shown, the locking piece 14 is elastically connected to the lock seat 12 through the first elastic member 16. When the plug end 111 is inserted into the plug hole 121 and the locking piece 14 is in the locked position, the first elastic member 16 naturally stretches and elastically pushes the locking piece 14 so that the locking piece 14 is located at the edge of the lock hole 141 and is locked into the card slot 1111. Fig.12 When the pressing rod 131 presses the locking plate 14 to move to the unlocking position, the locking plate 14 squeezes the first elastic member 16 under the pressing force of the pressing rod 131 and elastically contracts, so that the portion of the locking plate 14 that is stuck in the slot 1111 is removed from the slot 1111. Fig.13 and Fig.14 shown.

[0064] In this way, by arranging the first elastic member 16 to cooperate with the pressure rod 131 to drive the lock plate 14 to move between the locking position and the unlocking position on the lock seat 12, the movement driving structure of the lock plate 14 is simple and the driving process is simple.

[0065] In some embodiments, Figure 4 , Figure 6 and Figure 8 As shown, the plug end 111 is provided with a first guide surface 1112. Figure 8 As shown, when the first elastic member 16 is in a naturally extended state, the edge of the locking hole 141 protrudes relative to the inner wall of the insertion hole 121, and the first guide surface 1112 is used to cooperate with the portion of the locking plate 14 protruding from the inner wall of the insertion hole 121 after the plug-in end 111 is inserted into the insertion hole 121, so as to press the locking plate 14 to move toward the unlocking position, thereby guiding the plug-in end 111 to be inserted into the locking hole 141, and the card slot 1111 is arranged above the first guide surface 1112.

[0066] The connection lock 10 of this embodiment, please combine Figures 11 to 14 , in unlocked state, such as Fig.11As shown, the lock tongue 11 is separated from the lock seat 12. In this state, the first elastic member 16 is in a naturally extended state. The first elastic member 16 elastically pushes the lock plate 14 to the lock seat 12 in the locked position. The edge of the lock hole 141 of the lock tongue 11 protrudes relative to the inner wall of the insertion hole 121 of the lock seat 12. When the lock tongue 11 needs to be locked to the lock seat 12, the plug-in end 111 of the lock tongue 11 is aligned with the insertion hole 121 of the lock seat 12. The operator pushes the first body 1 downward along the direction indicated by the arrow F2. Then, the first guide surface 1112 of the plug-in end 111 contacts the edge of the lock hole 141 of the lock plate 14. The first guide surface 1112 pushes the lock plate 14 to move toward the locked position along the direction indicated by the arrow F1. During the movement, the lock plate 14 presses the first elastic member 16, and the first elastic member 16 is compressed. When the lock tongue 11 moves downward until the edge of the lock hole 141 of the lock plate 14 is opposite to the card slot 1111, that is, when the first guide surface 1112 is separated from the lock plate 14, under the elastic thrust of the first elastic member 16, the edge of the lock hole 141 of the lock plate 14 is inserted into the card slot 1111 on the lock tongue 11, and the lock plate 14 and the plug-in end 111 of the lock tongue 11 are pressed tightly, so that the lock plate 14 clamps the plug-in end 111 of the lock tongue 11 in the lock seat 12, thereby locking the lock tongue 11 to the lock seat 12. Fig.12 shown.

[0067] When the connecting lock 10 is unlocked, the driving rod 131 moves downward in the direction indicated by the arrow F2, and the rod 131 moves to abut against the locking plate 14. The rod 131 continues to move and pushes the locking plate 14 toward the unlocking position. When the locking plate 14 moves to the unlocking position, Fig.13 As shown in FIG. 1 , the locking piece 14 is inserted into the slot 1111 and is moved out of the slot 1111. At this time, the ejector rod 15 can eject the plug end 111 from the plug hole 121. Fig.14 After the lock tongue 11 is separated from the lock seat 12, the elastic force of the lock plate 14 pressing the first elastic member 16 disappears, and the first elastic member 16 is restored to a naturally extended state, and the lock plate 14 can move to the locking position under the thrust of the first elastic member 16, that is, the lock plate 14 moves to the edge of the lock hole 141 and protrudes from the inner wall of the insertion hole 121.

[0068] In this embodiment, if Figure 8 As shown, the first guide surface 1112 is an annular surface arranged in the circumference of the plug end 111, the first guide surface 1112 is inclined relative to the axis of the plug hole 121, and the distance between the end of the first guide surface 1112 close to the first body 1 and the axis of the plug hole 121 is greater than the distance between the end of the first guide surface 1112 away from the first body 1 and the axis of the plug hole 121.

[0069] In this embodiment, if Figure 7 and Figure 8As shown, the opening of the jack 121 for inserting the plug end 111 is a gradually expanding opening to facilitate the plugging of the plug end 111 in alignment.

[0070] In this embodiment, if Figure 8 As shown, the lock base 12 is provided with a limiting groove 122, and at least part of the locking piece 14 is slidably inserted in the limiting groove 122. The limiting groove 122 is used to guide the locking piece 14 to move between the locking position and the unlocking position along a direction perpendicular to the axial direction of the lock hole 141. The first elastic member 16 is installed in the limiting groove 122, one end of the first elastic member 16 is connected to the end of the locking piece 14 inserted into the limiting groove 122, and the other opposite end of the first elastic member 16 is connected to the groove wall of the limiting groove 122. The direction of the elastic force of the first elastic member 16 is the same as the moving direction of the locking piece 14 in the lock base 12, that is, the direction of the elastic force of the first elastic member 16 is perpendicular to the axial direction of the lock hole 141. In this way, the limiting groove 122 is provided to install the first elastic member 16 and guide the locking piece 14 to move between the locking position and the unlocking position.

[0071] For example, in a specific embodiment, the first elastic member 16 can be a cylindrical spring, and the opposite ends of the cylindrical spring are respectively connected to the locking piece 14 and the groove wall of the limiting groove 122. Of course, in other embodiments, the first elastic member 16 can also be an elastic rubber block or the like disposed in the limiting groove 122.

[0072] In some embodiments, Figure 4 ,and Figures 7 to 10 As shown, the lock seat 12 has an installation cavity 123, the locking piece 14 is inserted in the installation cavity 123 and has a pressure-receiving end 142 extending from the installation cavity 123, the moving direction of the pressure rod 131 is parallel to the axial direction of the insertion hole 121, and the end of the pressure rod 131 away from the first body 1 is provided with a second guide surface 1311 inclined relative to the axial direction of the insertion hole 121, and the second guide surface 1311 is used to cooperate with the pressure-receiving end 142 to press the locking piece 14 to move toward the unlocking position.

[0073] In this embodiment, please combine Figures 11 to 13 When the lock tongue 11 is in the unlocked state, the pressure rod 131 is vertically arranged above the lock plate 14, and the end of the pressure rod 131 facing the lock seat 12 is located directly above the pressure end 142 of the lock plate 14. Fig.11 When the pressure rod 131 is driven to move by a force parallel to the axial direction of the jack 121, the pressure rod 131 can contact the pressed end 142 of the locking plate 14 and press the locking plate 14 as it continues to move, such as Fig.12 and Fig.13As shown, in this way, by setting a second guide surface 1311 on the pressure rod 131, the second guide surface 1311 abuts against the locking plate 14, and the pressure rod 131 moves, and the second guide surface 1311 pushes the locking plate 14 to move, so that the locking plate 14 moves from the locking position to the unlocking position. The second guide surface 1311 is a surface inclined relative to the axial direction of the insertion hole 121.

[0074] In some embodiments, Figure 7 , Figure 8 and Fig.12 As shown, the push rod 15 is pivotally connected to the lock base 12 through a pin 151, one end of the push rod 15 is located below the insertion hole 121 and is used to abut against the plug end 111 when the plug end 111 is inserted into the insertion hole 121, and the other opposite end of the push rod 15 is located below the pressure end 142 for being pressed by the pressure rod 131.

[0075] In this way, the push rod 15 is pivotally installed on the lock base 12. When the pressure rod 131 presses one end of the push rod 15 to move downward along the axial direction of the insertion hole 121, the other opposite end of the push rod 15 is lifted upward along the axial direction of the insertion hole 121, thereby being able to push the plug-in end 111 of the lock tongue 11 to move upward, thereby ejecting the plug-in end 111 from the insertion hole 121.

[0076] In this embodiment, the pin 151 of the pivoted push rod 15 is disposed on the lock base 12 perpendicular to the axial direction of the insertion hole 121 . The length direction of the push rod 15 , the axial direction of the pin 151 and the axial direction of the insertion hole 121 are perpendicular to each other.

[0077] In some embodiments, Figure 4 , Fig. 9 and Fig.10 As shown, the pressing assembly 13 further includes a fixing seat 131 and a second elastic member 132 . The fixing seat 131 is used to be detachably mounted on the first body 1 . The pressing rod 131 is movably mounted on the fixing seat 131 and elastically connected to the fixing seat 131 through the second elastic member 132 .

[0078] In this embodiment, please combine Figures 11 to 14 , the pressing rod 131 can move between the first position and the second position relative to the fixing seat 131. When the plug end 111 is inserted into the plug hole 121 and the locking piece 14 is in the locking position, as shown in FIG. Fig.12 As shown, the second elastic member 132 is in a naturally extended state, and the pressing rod 131 is in the first position and does not abut against the locking plate 14; when the lock tongue 11 needs to be unlocked from the lock seat 12, the pressing rod 131 can be driven by an external force to move from the first position to the second position to abut against the locking plate 14 and / or the push rod 15, as shown in FIG. Fig.13 and Fig.14As shown, during the movement of the pressing rod 131, the pressing rod 131 presses against the second elastic member 132 to elastically contract, so that the pressing rod 131 can return to the first position when the pressing external force is released, as shown in FIG. Fig.11 shown.

[0079] In a specific embodiment, the fixing seat 131 is used to be installed on the first body 1, for example, the fixing seat 131 can be screwed to the first body 1, or the fixing seat 131 can also be installed on the first body 1 through a fastener. The fixing seat 131 is a hollow cylindrical structure, and the fixing seat 131 is sleeved on the outside of the pressure rod 131, one end of the pressure rod 131 extends from the end of the fixing seat 131 connected to the first body 1, and the other end of the pressure rod 131 used to press the locking plate 14 extends from the end of the fixing seat 131 away from the first body 1. The second elastic member 132 is sleeved on the pressing end 1312 of the pressure rod 131, and one end of the second elastic member 132 is connected to the pressing end 1312, and the other opposite end of the second elastic member 132 is connected to the fixing seat 131.

[0080] In some embodiments, Figure 4 , Figures 9 to 11 As shown, the pressing assembly 13 also includes a sealing cover 133, the pressing rod 131 has a pressing end 1312, the pressing end 1312 is used to pass through the mounting hole 102 of the first body 1 or to extend from the mounting hole 102 of the first body 1 for pressing, and the sealing cover 133 is covered on the pressing end 1312 and used to seal the mounting hole 102.

[0081] In this embodiment, a mounting hole 102 is provided on the first body 1, and the mounting hole 102 penetrates the upper surface and the lower surface of the first body 1 along the axial direction of the insertion hole 121, and a pressing rod 131 is provided in the mounting hole 102, and one end of the pressing rod 131 extends from the upper surface of the first body 1, and forms a pressing end 1312 for external force to press, and the other end of the pressing rod 131 extends from the lower surface of the first body 1, and can move to abut against the locking piece 14 and the top rod 15. The pressing assembly 13 also includes a sealing cover 133, which is provided on the pressing end 1312 of the pressing rod 131 and can be used to seal the mounting hole 102 of the first body 1, so that the waterproof performance of the first body 1 can be improved, so that water and dust in the environment will not enter the first body 1 through the mounting hole 102.

[0082] Exemplarily, when the first main body 1 is a control box 100, the sealing cover 133 seals the mounting hole 102, so that the control box 100 can be waterproofed, so that water and dust in the environment cannot enter the control box 100, thereby improving the waterproof performance of the control box 100 and improving the reliability and stability of the control box 100.

[0083] In a specific embodiment, the sealing cover 133 may be a flexible cover such as a silicone cover or a rubber cover, which can seal the mounting hole 102 and effectively transfer the pressing force acting thereon to the pressure rod 131 .

[0084] In a specific embodiment, the sealing cover 133 is detachably connected to the fixing seat 132 , and the sealing cover 133 can be inserted into the mounting hole 102 by interference fit to be sealed with the mounting hole 102 , or the sealing cover 133 can be sealed above the mounting hole 102 to seal the mounting hole 102 .

[0085] The connecting lock 10 provided in the above-mentioned embodiments of the present application, by installing the lock tongue 11 and the pressing assembly 13 on the first body 1, and installing the lock seat 12 on the second body 2, enables the first body 1 and the second body 2 to be connected through the lock tongue 11, the pressure rod 131 and the lock seat 12, and the lock plate 14 and the push rod 15 installed on the lock seat 12. The connecting lock 10 has a simple structure and does not require the use of other fasteners such as screws or bolts for auxiliary connection. It is practical and convenient, has strong operability, and has high practicality.

[0086] The following uses the connection lock 10 of the present application to connect the control box 100 and the box body 200 of the display screen as an example. Figures 11 to 14 , the action process of each structure of the connection lock 10 of the present application during specific use is described:

[0087] Specifically, Figures 11 to 14 As shown, Fig.11 It is a cross-sectional view of the position of the connection lock 10 when the lock tongue 11 installed in the control box 100 is unlocked from the lock seat 12 installed in the box body 200; Fig.12 It is a cross-sectional view of the position of the connection lock 10 when the lock tongue 11 installed in the control box 100 is locked in the lock seat 12 installed in the box body 200; Fig.13 It is a cross-sectional view of the connecting lock 10 when the locking tongue 11 installed in the control box 100 is unlocked from the lock seat 12 installed in the box body 200, and the pressing rod 131 pushes the locking plate 14 to move to the unlocking position;

[0088] Fig.14 The cross-sectional view of the connection lock 10 is shown when the locking tongue 11 installed in the control box 100 is unlocked from the lock seat 12 installed in the box body 200, and the pressing rod 131 pushes the ejector rod 15 to eject the plug end 111 of the locking tongue 11 from the insertion hole 121. In the figure, the double-headed arrow F1 indicates the moving direction of the locking piece 14, the axial direction of the insertion hole 121 is parallel to the direction indicated by F2, and the double-headed arrow F2 indicates the moving direction of the pressing rod 131.

[0089] First, see Fig.11 , Fig.11The diagram shows the state of the connected lock 10 when the lock tongue 11 is disengaged from the lock seat 12, i.e., in the unlocked state. In this state, the first elastic member 16 is in a naturally extended state, and the first elastic member 16 elastically pushes the lock plate 14 to be in the locked position on the lock seat 12. The edge of the lock hole 141 of the lock tongue 11 protrudes relative to the inner wall of the insertion hole 121 of the lock seat 12, the pressure rod 131 is located directly above the lock plate 14 along the direction indicated by the arrow F2 and is spaced apart from the lock plate 14, and the push rod 15 is not subjected to force.

[0090] Please continue reading Fig.12 When the control box 100 needs to be locked and connected to the box body 200, the plug end 111 of the lock tongue 11 is aligned with the plug hole 121 of the lock seat 12, and the operator pushes the control box 100 downward in the direction indicated by the arrow F2, and the plug end 111 is inserted from the plug hole 121. Then, the first guide surface 1112 on the plug end 111 contacts the edge of the lock hole 141 of the lock plate 14, and the plug end 111 pushes the lock plate 14 to move toward the locking position in the direction indicated by the arrow F1. During the movement, the lock plate 14 presses the first elastic Part 16, the first elastic part 16 is compressed, and when the lock tongue 11 moves downward to the first guide surface 1112 to disengage from the lock plate 14, under the action of the elastic thrust of the first elastic part 16, the edge of the lock hole 141 of the lock plate 14 is inserted into the slot 1111 on the lock tongue 11, and the lock plate 14 and the plug-in end 111 of the lock tongue 11 are pressed tightly, and the lock plate 14 clamps the plug-in end 111 of the lock tongue 11 in the lock seat 12, and the plug-in end 111 of the lock seat 12 cannot be disengaged from the lock seat 12, thereby locking the lock tongue 11 to the lock seat 12.

[0091] Please continue reading Fig.13 and Fig.14 When the control box 100 needs to be removed from the box body 200, the operator presses the sealing cover 133 by hand, and the sealing cover 133 is forced to move downward in the direction indicated by the arrow F2 and drives the pressure rod 131 to move downward, and the second guide surface 1311 of the pressure rod 131 moves to abut against the end of the locking plate 14 extending from the lock seat 12, and continues to press the sealing cover 133, the pressure rod 131 continues to move, and the second guide surface 1311 pushes the locking plate 14 toward the unlocking position. When the locking plate 14 moves to the unlocking position, the position where the locking plate 14 is inserted into the card slot 1111 is moved out of the card slot 1111, as shown in FIG. Fig.13 At the same time, the end of the pressure rod 131 away from the control box 100 abuts against one end of the push rod 15, and the pressure rod 131 continues to move downward to press the push rod 15 to rotate around its pin 151, and the other end of the push rod 15 abuts against the plug-in end 111 of the lock tongue 11. The push rod 15 is pressed and rotated by the pressure rod 131, so that the plug-in hole of the lock tongue 11 can be pushed out from the plug hole 121 through the lock hole 141, as shown in FIG. Fig.14 As shown, the lock tongue 11 is disengaged from the lock seat 12 and the lock tongue 11 is unlocked from the lock seat 12 , so that the control box 100 can be detached from the box body 200 .

[0092] Another embodiment of the present invention further provides a display screen, such as Figures 1 to 3 As shown, the display screen includes a box body 200 and a control box 100, as well as several connection locks 10 provided in the above embodiments. Among them, the control box 100 corresponds to the first body 1 in the above embodiments, and the box body 200 corresponds to the second body 2 in the above embodiments, that is, the lock seat 12 is installed on the box body 200, and the lock tongue 11 and the pressing assembly 13 are installed on the control box 100.

[0093] like Figures 11 to 14 As shown, the lock seat 12 of the connecting lock 10 is installed on the box body 200, and the socket 121 of the lock seat 12 is set opposite to the control box 100, the lock tongue 11 is installed on the control box 100, and the plug-in end 111 of the lock tongue 11 protrudes toward the box body 200 and faces the socket 121, and the pressing assembly 13 is installed on the control box 100, and one end of the pressure rod 131 protrudes toward the box body 200 and is located above the locking plate 14. When it is necessary to lock the control box 100 and the box body 200, the plug-in end 111 of the lock tongue 11 is inserted into the socket 121 of the lock seat 12. The connection operation does not require the aid of external tools, is simple to operate, and requires little operating space. When it is necessary to separate the control box 100 and the box body 200, the operator can press the pressure rod 131 by hand, and the pressure rod 131 moves and presses the locking plate 14 and the push rod 15 in sequence. The lock tongue 11 is pushed out from the insertion hole 121 of the lock seat 12 under the action of the push force of the push rod 15, and the lock tongue 11 is separated from the lock seat 12, so that the lock tongue 11 is unlocked, and then the control box 100 is removed from the box body 200. The separation process does not require the use of any tools, and only requires pressing the pressure rod 131 on the control box 100. The operation is simple and convenient.

[0094] The display screen provided by the utility model connects the housing 200 and the display module of the display screen by using the above-mentioned connecting lock 10. When in use, it is only necessary to install the lock seat 12 of the connecting lock 10 on the housing 200, and at the same time install the lock tongue 11 and the pressure rod 131 of the pressing group on the control box 100. The housing 200 and the control box 100 are connected by the lock tongue 11 and the pressure rod 131 cooperating with the lock seat 12 and the locking piece 14 and the push rod 15 installed on the lock seat 12. The assembly is simple and the operation is convenient, and the efficiency of disassembly, assembly and maintenance of the control box 100 is effectively improved.

[0095] In addition, the display screen of this embodiment also has other beneficial effects of the connection lock 10 provided by the above embodiments, which will not be described in detail here.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection lock, characterized in that: include: A locking tongue, used for being mounted on the first body, the locking tongue having a plug-in end; A lock seat, used for being installed on the second main body, the lock seat being provided with a plug hole for the plug end to be inserted into; A pressing assembly, comprising a pressing rod movably mounted on the first body; A locking plate and a push rod are movably mounted on the lock seat, wherein the locking plate can be moved from a locking position to an unlocking position on the lock seat, and the push rod is used to withstand the pressure of the pressure rod to push the plug end out of the plug hole; When the plug-in end is inserted into the socket and the locking plate is located in the locking position, the locking plate is connected to the plug-in end so that the lock tongue is locked to the lock seat, and when the pressure rod moves toward the lock seat, the pressure rod can press the locking plate to move the locking plate from the locking position to the unlocking position, and when the locking plate moves to the unlocking position, the pressure rod can also press the push rod to move so that the push rod pushes the lock tongue and pushes the plug-in end out of the socket.

2. The connecting lock according to claim 1, characterized in that: The locking piece is provided with a locking hole for the plug-in end to be adapted and inserted, the locking hole is arranged opposite to the plug-in hole along the axial direction of the plug-in hole, and the plug-in end is provided with a card slot; Wherein, when the plug-in end is inserted into the plug hole and the locking piece is located at the locking position, the plug-in end is inserted into the locking hole, and the locking piece is located at the edge of the locking hole and is snapped into the slot; When the pressing rod presses the locking piece to move to the unlocking position, the portion of the locking piece inserted into the slot is released from the slot, so that the ejector rod can eject the plug end from the lock hole.

3. The connecting lock according to claim 2, characterized in that: The locking piece is elastically connected to the lock seat via a first elastic member. When the plug-in end is inserted into the insertion hole and the locking piece is located in the locking position, the first elastic member naturally stretches and elastically pushes the locking piece so that the locking piece is located at the edge of the lock hole and is inserted into the slot. When the pressure rod presses the locking piece to move to the unlocking position, the locking piece squeezes the first elastic member and elastically contracts under the pressure of the pressure rod, so that the part of the locking piece inserted into the slot is released from the slot.

4. The connecting lock according to claim 3, characterized in that: The plug-in end is provided with a first guide surface. When the first elastic member is in a naturally extended state, the edge of the lock hole protrudes relative to the inner wall of the plug hole. The first guide surface is used to cooperate with the portion of the lock plate protruding from the inner wall of the plug hole after the plug-in end is inserted into the plug hole, so as to press the lock plate to move toward the unlocking position, thereby guiding the plug-in end to be inserted into the lock hole. The card slot is arranged above the first guide surface.

5. The connecting lock according to claim 4, characterized in that: The lock seat is provided with a limiting groove, in which at least a portion of the locking piece is slidably inserted, and the limiting groove is used to guide the locking piece to move between the locking position and the unlocking position along a direction perpendicular to the axial direction of the locking hole.

6. The connecting lock according to claim 1, characterized in that: The lock seat has an installation cavity, the locking plate is inserted in the installation cavity and has a pressure-receiving end extending from the installation cavity, the moving direction of the pressure rod is parallel to the axial direction of the insertion hole, and the end of the pressure rod away from the first body is provided with a second guide surface inclined relative to the axial direction of the insertion hole, and the second guide surface is used to cooperate with the pressure-receiving end to press the locking plate to move toward the unlocking position.

7. The connecting lock according to claim 6, characterized in that: The push rod is pivotally connected to the lock seat through a pin shaft, one end of the push rod is located below the insertion hole and is used to abut against the plug end when the plug end is inserted into the insertion hole, and the other opposite end of the push rod is located below the pressure-receiving end for the pressure rod to abut.

8. The connecting lock according to any one of claims 1 to 7, characterized in that: The pressing assembly also includes a fixing seat and a second elastic member, wherein the fixing seat is used to be detachably mounted on the first body, the pressing rod is movably mounted on the fixing seat and elastically connected to the fixing seat through the second elastic member, and can move between a first position and a second position relative to the fixing seat.

9. The connecting lock according to claim 8, characterized in that: The pressing assembly further includes a sealing cover, the pressing rod has a pressing end for extending from the mounting hole of the first body for pressing, and the sealing cover is disposed on the pressing end and is used to seal the mounting hole.

10. A display screen, comprising a box and a control box, characterized in that: The display screen also includes the connection locks described in any one of claims 1 to 9, the control box is the first body, and the box is the second body.

Images