CN108099801B - A kind of vehicle terminal quick lock mechanism - Google Patents

Abstract

The invention discloses a vehicle-mounted terminal quick locking mechanism which comprises a first shell, a second shell and a locking piece, wherein the first shell and the second shell are matched with each other, a cavity for accommodating a vehicle-mounted terminal is formed between the first shell and the second shell, one ends of the first shell and the second shell are provided with inlets for inserting the vehicle-mounted terminal, the first shell is provided with a ratchet wheel and a pawl which are matched with each other, the first shell is further provided with a first compression spring matched with the pawl, the locking piece comprises a fixing plate, the bottom of the fixing plate is provided with a bolt, an inserting plate and a locking plate, the locking plate is provided with a rack matched with the ratchet wheel, the bolt is matched with a mounting hole in the vehicle-mounted terminal, the first shell is provided with a second compression spring matched with the inserting plate, and the first shell is further provided with an unlocking button matched with the pawl. The invention solves the problems of troublesome dismounting and mounting operation and low efficiency caused by the adoption of screws for fastening the vehicle-mounted terminal in the prior art.

Description

A kind of vehicle terminal quick lock mechanism

technical field

The invention relates to the technical field of mechanical assembly, in particular to a quick locking mechanism for a vehicle terminal.

Background technique

The on-board terminal is the front-end equipment of the vehicle monitoring and management system. It can also be called the vehicle dispatch monitoring terminal (TCU terminal). The on-board terminal is one of the essential components of the vehicle.

The connection method between the on-board terminal and the vehicle affects the convenience of installation and disassembly of the on-board terminal. The existing on-board terminal is installed with screws, and the tightening and loosening must be considered as a tool screwdriver. It does not meet the requirements of rapid assembly and disassembly in wartime, and the efficiency is low, so that the product quality cannot be guaranteed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a vehicle-mounted terminal quick lock mechanism, which solves the problems of troublesome disassembly and installation operations and low efficiency caused by the existing use of screws to fasten the vehicle-mounted terminal.

The present invention is achieved through the following technical solutions:

A vehicle-mounted terminal quick lock mechanism, comprising a first casing and a second casing that cooperate with each other, and a locking member, a cavity for accommodating the vehicle-mounted terminal is formed between the first casing and the second casing, and the One end of the first casing and the second casing is provided with an inlet for inserting the vehicle-mounted terminal, the first casing is provided with a ratchet wheel and a pawl that cooperate with each other, and the first casing is also provided with a pawl that cooperates with each other. the first compression spring, the locking member includes a fixing plate, the bottom of the fixing plate is provided with a latch, a plug-in plate and a locking plate, the locking plate is provided with a rack that cooperates with a ratchet, the The plug is matched with the mounting hole on the vehicle terminal, the first housing is provided with a second compression spring matched with the plug-in board, and the first housing is also provided with an unlock button matched with the pawl.

The first shell and the second shell of the present invention are connected by screws during assembly, and then mounted on the vehicle through screws. The first shell and the second shell can be metal shells or plastic shells The ratchet wheel and the pawl are both in the prior art, and the rotation of the ratchet wheel is also in the prior art by applying an external force to the pawl. And the pawl rotates on the pin shaft, the unlock button can slide up and down on the first housing, and through the up and down sliding of the unlock button, an external force is applied to the pawl, thereby realizing the rotation of the ratchet, and the ratchet and the rack are combined with each other The connection between the locking member and the first housing is realized, the first compression spring is arranged in parallel with the insertion direction of the vehicle terminal, one end of the first compression spring is connected with the pawl, and the second compression spring is connected with the insertion direction of the vehicle terminal. Vertical setting.

Preferably, the first housing is provided with a slot for installing the first compression spring and the second compression spring, the pawl is provided with a protruding block connected with the first compression spring, the protrusion The arrangement of the block can improve the structural stability of the connection between the pawl and the first compression spring.

The working principle of the present invention: the first casing and the second casing are assembled and installed on the vehicle, and then the vehicle terminal is inserted into the cavity between the first casing and the second casing from the entrance, and the unlocking button is Press down, then insert the locking piece, the latch on the locking piece is inserted into the mounting hole on the vehicle terminal, the vehicle terminal is fixed, and then release the unlock button, under the action of the first compression spring, the pawl locks the ratchet wheel , the ratchet is engaged with the rack, the structure is in a locked state, the vehicle terminal is locked in the cavity, and the locking plate is pressed against the second compression spring; when it is necessary to unlock, press the unlock button, the pawl and the ratchet are released. The ratchet is separated from the rack, the second compression spring that gives pre-pressure when the locking member is locked pops out, the latch on the locking member is released from the mounting hole on the vehicle terminal, and the vehicle terminal can be taken out from the side entrance .

In the present invention, a first housing and a second housing are provided, a cavity for placing the vehicle terminal is formed between the first housing and the second housing, and a ratchet wheel, a pawl, an unlocking button, a ratchet wheel, a pawl, an unlocking button, The first compression spring and the second compression spring realize the insertion and ejection of the locking member under the action of the first compression spring and the second compression spring through the cooperation of the locking member with the ratchet wheel and the vehicle terminal, thereby realizing the The removal and installation of the vehicular terminal can be realized only by pressing the unlocking button, and the operation is simple, convenient and quick. Thus, the present invention solves the problems of troublesome and low efficiency in disassembly and installation caused by the existing screw-fastened vehicle terminal.

Further, a groove is provided on the first housing, the ratchet wheel, the pawl, the unlocking button, the first pressing spring and the second pressing spring are arranged in the groove, and a pressing cover matched with the groove is also included. plate.

On the one hand, the arrangement of the groove is convenient for the ratchet wheel, the pawl, the unlocking button, the first pressing spring and the second pressing spring to be installed on the first housing, and on the other hand, it is convenient to install the pressing cover plate, so that the pressing The cover plate does not protrude too much from the first casing, and the overall shape is beautiful.

Further, both the ratchet wheel and the pawl are provided with sockets, and the pressing cover is provided with a boss matched with the sockets.

The boss is inserted into the insertion hole to limit the up and down degrees of freedom of the ratchet wheel and the pawl, thereby further stabilizing.

Further, the socket is a circular hole, and the boss is a cylindrical structure.

The cooperation between the cylindrical structure and the circular hole facilitates the insertion of the cylindrical structure into the circular hole, thereby improving the convenience of operation.

Further, the side wall of the unlock button is provided with a first chute, the first housing is provided with a pin block that cooperates with the first chute, and the unlock button realizes the unlock button through the cooperation of the chute and the pin block. swipe up and down.

Specifically, the first chute is a linear slot, and the pin block can move up and down in the first chute, so as to realize the up and down sliding of the unlocking button, and then cooperate with the first compression spring to realize the pressing and popping of the unlocking button .

Further, the unlocking button has a T-shaped boss structure.

The T-shaped boss structure specifically means that the upper end of the unlocking button is large and the lower end is small, which improves the contact area between the finger and the unlocking button, avoids slippage, and improves the convenience of operation.

Further, the first housing is provided with a second chute matched with the plug-in board, and the second compression spring is provided at the lower end of the second chute.

Specifically, the plug board can slide up and down along the second chute, that is, the second chute can limit the direction in which the plug board moves, so as to avoid the deviation of the locking piece during the insertion process, and improve the installation reliability of the locking piece. precision.

Further, the first housing is provided with a plurality of installation shafts, and the first compression spring, the ratchet wheel and the pawl are respectively arranged on the installation shafts.

The arrangement of the installation shaft facilitates the installation of the first compression spring, the ratchet wheel and the pawl.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

In the present invention, a first housing and a second housing are provided, a cavity for placing the vehicle terminal is formed between the first housing and the second housing, and a ratchet wheel, a pawl, an unlocking button, a ratchet wheel, a pawl, an unlocking button, The first compression spring and the second compression spring realize the insertion and ejection of the locking member under the action of the first compression spring and the second compression spring through the cooperation of the locking member with the ratchet wheel and the vehicle terminal, thereby realizing the The removal and installation of the terminal can be realized only by pressing the unlocking button, and the operation is simple, convenient and quick. Thus, the present invention solves the problems of troublesome and low efficiency in the disassembly and installation of the existing vehicle-mounted terminal using screws.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute limitations to the embodiments of the present invention. In the attached image:

Figure 1 is an exploded view of the quick lock mechanism;

FIG. 2 is a schematic structural diagram of the cooperation between the first housing and the locking member.

The marks in the attached drawings and the corresponding parts names:

1-Vehicle terminal, 2-First shell, 3-Second shell, 4-Locking piece, 5-Press cover, 6-Ratchet, 7-Unlock button, 8-Pawl, 9-First Compression spring, 10-second compression spring, 21-installation shaft, 41-locking plate, 42-fixing plate, 43-bolt, 44-insert plate, 51-boss.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. as a limitation of the present invention.

Example 1:

As shown in Figures 1 and 2, a vehicle terminal quick lock mechanism includes a first housing 2 and a second housing 3 that cooperate with each other, and a locking member 4. The first housing 2 and the second housing The body 3 is fastened by bolt connection during installation. After installation, a cavity for accommodating the vehicle terminal 1 is formed between the first housing 2 and the second housing 3. The first housing 2 and the second housing 3 3. An inlet for inserting the vehicle-mounted terminal 1 is provided at one end, and the first housing 2 is provided with a ratchet wheel 6 and a pawl 8 that cooperate with each other. Specifically, the ratchet wheel 6 and the pawl 8 are installed on the first On the housing 2, the ratchet wheel 6 and the pawl 8 rotate on the pin shaft, the pawl 8 is arranged above the ratchet wheel 6, the pawl 8 is connected with the ratchet wheel 6, and the first housing 2 is also provided with There is a first compression spring 9 matched with the pawl 8, the first compression spring 9 is arranged on the side of the pawl 8, the locking member 4 includes a fixing plate 42, and the bottom of the fixing plate 42 is provided with The latch 43 , the insert plate 44 and the locking plate 41 . The locking plate 41 is provided with a rack that cooperates with the ratchet 6 . The latch 43 is matched with the mounting hole on the vehicle terminal 1 . There is a second compression spring 10 that cooperates with the insert plate 44 , and the first housing 2 is also provided with an unlocking button 7 that cooperates with the pawl 8 , and the button 7 can be moved up and down on the first housing 2 Sliding, specifically, the side wall of the unlock button 7 is provided with a first chute, the first housing 2 is provided with a pin block matched with the first chute, the unlock button 7 is connected to the The cooperation of the pin blocks realizes the up and down sliding of the unlocking button 7 .

The working principle of this embodiment: the first casing 2 and the second casing 3 are assembled and then installed on the vehicle, and then the vehicle-mounted terminal 1 is inserted into the space between the first casing 2 and the second casing 3 from the entrance. In the cavity, press down the unlock button 7, then insert the locking member 4, the latch 43 on the locking member 4 is inserted into the mounting hole on the vehicle terminal 1, the vehicle terminal 1 is fixed, and then release the unlock button 7, in Under the action of the first compression spring 9, the pawl 8 buckles the ratchet 6, the ratchet 6 is engaged with the rack, the structure is in a locked state, the vehicle terminal 1 is locked in the cavity, and the locking plate 41 presses the second Press the spring 10; when it is necessary to unlock, press the unlock button 7, the pawl 8 and the ratchet 6 are released, the ratchet 6 is separated from the rack, the locking member 4 is ejected by the second pressing spring 10, and the locking member 4 The latch 43 on the top is disengaged from the mounting hole on the vehicle-mounted terminal 1, and the vehicle-mounted terminal 1 can be taken out from the side entrance.

Example 2:

As shown in FIGS. 1 and 2 , this embodiment is based on Embodiment 1, the first housing 2 is provided with a groove, the ratchet wheel 6 , the pawl 8 , the unlocking button 7 , the first pressing spring 9 and the The second compression spring 10 is arranged in the groove, and further includes a compression cover plate 5 matched with the groove, the compression cover plate 5 is mounted on the first housing 2 by bolts, and the compression cover plate 5 Just cover the groove, the setting of the pressing cover 5 can prevent the ratchet 6, the pawl 8, the unlocking button 7, the first pressing spring 9 and the second pressing spring 10 from being exposed; the ratchet 6 and the ratchet The claws 8 are all provided with sockets, and the pressing cover 5 is provided with a boss 51 that cooperates with the sockets; the sockets are circular holes, the bosses 51 are cylindrical structures, and the bosses 51 can further fix the ratchet wheel 6 and the pawl 8, limit the up and down degrees of freedom of the ratchet wheel 6 and the pawl 8, and ensure that the ratchet wheel 6, the pawl 8 and the locking member 4 are locked together.

Example 3:

As shown in FIG. 1 and FIG. 2 , this embodiment is based on Embodiment 1 or Embodiment 2, the unlocking button 7 is a T-shaped boss structure, and the first housing 2 is provided with a first shell 2 that cooperates with the insertion board 44 . Two sliding grooves, the second compression spring 10 is disposed at the lower end of the second sliding groove, the first housing 2 is provided with a plurality of installation shafts 21, the first compression spring 9, the ratchet 6 and the ratchet The claws 8 are provided on the mounting shafts, respectively.

The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. A vehicle-mounted terminal quick lock mechanism, characterized in that it comprises a first housing (2) and a second housing (3) that cooperate with each other, and a locking member (4), the first housing (2) A cavity for accommodating the vehicle-mounted terminal (1) is formed between ) and the second casing (3), and one end of the first casing (2) and the second casing (3) is provided with a hole for inserting the vehicle-mounted terminal (1). Inlet, the first housing (2) is provided with a ratchet (6) and a pawl (8) that cooperate with each other, and the first housing (2) is also provided with a first housing (2) that cooperates with the pawl (8). A compression spring (9), the locking member (4) includes a fixing plate (42), and the bottom of the fixing plate (42) is provided with a latch (43), an inserting plate (44) and a locking plate (41) ), the locking plate (41) is provided with a rack that cooperates with the ratchet (6), the latch (43) is matched with the mounting hole on the vehicle terminal (1), and the first housing (2) A second compression spring (10) that cooperates with the insert plate (44) is arranged thereon, and an unlocking button (7) that cooperates with the pawl (8) is also arranged on the first housing (2); A casing (2) is provided with a groove, and the ratchet wheel (6), the pawl (8), the unlocking button (7), the first pressing spring (9) and the second pressing spring (10) are arranged on the The groove also includes a pressing cover plate (5) matched with the groove; the first housing (2) is provided with a second sliding groove matched with the insert plate (44), the second pressing The spring (10) is arranged at the lower end of the second chute. 2 . The vehicle-mounted terminal quick lock mechanism according to claim 1 , wherein the ratchet wheel ( 6 ) and the ratchet pawl ( 8 ) are provided with sockets, and the pressing cover plate ( 5 ) is provided with a socket. 3 . A boss (51) matched with the socket is provided. 3 . The vehicle-mounted terminal quick lock mechanism according to claim 2 , wherein the insertion hole is a circular hole, and the boss ( 51 ) is a cylindrical structure. 4 . 4. The vehicle-mounted terminal quick lock mechanism according to claim 1, characterized in that, a first chute is provided on the side wall of the unlocking button (7), and a first housing (2) is provided with a first chute. There is a pin block matched with the first chute, and the unlocking button (7) can slide up and down through the cooperation of the chute and the pin block. 5 . The vehicle-mounted terminal quick lock mechanism according to claim 1 , wherein the unlocking button ( 7 ) is a T-shaped boss structure. 6 . 6 . The vehicle-mounted terminal quick lock mechanism according to claim 1 , wherein a plurality of mounting shafts ( 21 ) are provided on the first housing ( 2 ), and the first compression spring ( 9 ) is provided on the first housing ( 2 ). ), the ratchet (6) and the pawl (8) are respectively arranged on the installation shaft.

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