Automobile central door lock

Abstract

The invention discloses a car central door lock, which belongs to the field of car accessories. The car central door lock comprises a shell, a fixing seat is tightly attached to the lower end of the shell, a heat dissipation hole is arranged inside the fixing seat, fixing blocks are fixedly welded to the upper ends of both sides of the fixing seat, screws are connected to the inside of the fixing blocks through threads, a motor is installed inside the fixing seat, a mounting ear is fixedly welded to the lower end surface of the shell, a connecting sleeve is fixedly welded to one side of the shell, and a dust cover is fixedly welded to one side of the connecting sleeve. The car central door lock can drive the fixing block to be tightly attached to the lower end surface of the shell by tightening the shell with screws, so that the fixing seat can be disassembled and assembled conveniently, and the internal motor can be repaired, replaced and maintained. The design of the heat dissipation hole can discharge the heat generated by the motor and prolong its service life. The clamping slot is fastened by the clamping block, and the threaded sleeve is tightened, so that the outer shell can be disassembled and assembled conveniently. The design of the limit ring can limit and fix the threaded sleeve to prevent it from automatically rotating and affecting the stability of the outer shell installation.

Description

Technical Field

[0001] The present invention relates to the field of automobile accessories, and more particularly to a central door lock for an automobile. Background Art

[0002] The central locking system in a car refers to the switch on the driver's door, which can control the closing and opening of all the doors of the car at the same time. This "central door locking" control device was installed on cars as early as the 1970s. After more than 20 years, it has been widely used.

[0003] The existing automobile central door lock uses a strong adhesive to fix the shell and the outer shell, which is not convenient to remove for inspection and maintenance of the internal equipment. At the same time, the motor fixing seat and the shell are fixedly welded, and the fixing seat is a fully enclosed structure, which makes it impossible to remove the heat emitted by the motor, thus affecting the service life of the motor. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a central control door lock for a car, which uses screws to tighten the shell to drive the fixing block to be close to the lower end surface of the shell, which is convenient for disassembly and assembly of the fixing seat and repair, replacement and maintenance of the internal motor. The design of the heat dissipation hole can discharge the heat generated by the motor and increase its service life; the card slot is fastened by the card block and the threaded sleeve is tightened to facilitate disassembly and assembly of the fixed shell, and the design of the limit ring can limit and fix the threaded sleeve to prevent it from automatically rotating and affecting the stability of the shell installation.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] The locking cam of the embodiment of the present invention is provided with a locking cam which is provided on the locking cam side of the locking cam, and a locking cam is provided on the locking cam side of the locking cam, wherein the locking cam is provided with a locking cam which is provided on the locking cam side of the locking cam, and a locking cam is provided on the locking cam side of the locking cam, wherein the locking cam is provided with a locking cam which is provided on the locking cam side of the locking cam, and a locking cam is provided on the locking cam side of the locking cam, wherein the locking cam is provided with a locking cam which is provided on the locking cam side of the locking cam, and a locking cam is provided on the locking cam side of the locking cam, wherein the locking cam is provided with a locking cam which is provided on the locking cam side of the locking cam, and a locking cam is provided on the locking cam side of the locking cam, wherein the locking cam is provided with a locking cam which is provided on the locking cam side of the locking cam, and a locking cam is provided on the locking cam side of the locking cam, wherein the locking cam is provided with a locking cam which is provided with a locking cam which is provided

[0007] Furthermore, a card slot is provided inside an upper end of one side of the shell.

[0008] Furthermore, a limiting ring is fixedly welded to the outer ends of the other sides of the shell and the outer casing.

[0009] Furthermore, the upper end of the screw is connected to the housing via a thread.

[0010] Furthermore, the lower end surface of the shell is in close contact with the fixing block. By tightening the shell with screws, the fixing block is driven to be in close contact with the lower end surface of the shell, which facilitates the disassembly and assembly of the fixing seat and the repair, replacement and maintenance of the internal motor.

[0011] Furthermore, the heat dissipation hole is connected to the interior of the fixing seat, and the design of the heat dissipation hole can discharge the heat generated by the motor and increase its service life.

[0012] Furthermore, the clamping block fastens the clamping slot, and the clamping slot is fastened by the clamping block, and the threaded sleeve is tightened, so that the housing can be easily disassembled and fixed.

[0013] Furthermore, the outer ends of the other sides of the shell and the outer casing are connected with threaded sleeves through threads.

[0014] Furthermore, one side of the threaded sleeve is in close contact with the limiting ring, and the limiting ring is designed to limit and fix the threaded sleeve to prevent it from automatically rotating and affecting the stability of the housing installation.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution uses screws to tighten the shell, driving the fixing block to fit tightly against the lower end surface of the shell, making it easy to disassemble and assemble the fixing seat and repair, replace and maintain the internal motor. The heat dissipation hole design can discharge the heat generated by the motor and increase its service life. The card slot is fastened by the card block and the threaded sleeve is tightened to facilitate the disassembly and assembly of the fixed shell. The limit ring design can limit and fix the threaded sleeve to prevent it from automatically rotating and affecting the stability of the shell installation.

[0017] (2) The upper end of the screw is connected to the housing through a thread, and the lower end surface of the housing is in close contact with the fixing block. By tightening the housing with the screw, the fixing block is driven to be in close contact with the lower end surface of the housing, making it convenient to disassemble and assemble the fixing seat and repair, replace and maintain the internal motor.

[0018] (3) The heat dissipation holes are connected to the inside of the fixing base. The design of the heat dissipation holes can discharge the heat generated by the motor and increase its service life.

[0019] (4) The card block is used to fasten the card slot. The card block is used to fasten the card slot and the threaded sleeve is tightened to facilitate the disassembly and assembly of the fixed housing.

[0020] (5) The outer ends of the other sides of the shell and the outer casing are connected with a threaded sleeve through threads, and one side of the threaded sleeve is tightly attached to the limiting ring. The design of the limiting ring can limit and fix the threaded sleeve to prevent it from automatically rotating and affecting the stability of the outer casing installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a partial cross-sectional enlarged view of the threaded sleeve and the housing of the present invention.

[0023] Description of the numbers in the figure:

[0024] 1 shell, 11 fixing seat, 12 heat dissipation hole, 13 fixing block, 14 screw, 15 motor, 16 mounting ear, 17 connecting sleeve, 18 dust cover, 19 rocker arm, 2 outer shell, 21 clamping block, 22 clamping slot, 23 limiting ring, 24 threaded sleeve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-2 A car central door lock comprises a shell 1, a fixing seat 11 is closely attached to the lower end of the shell 1, a heat dissipation hole 12 is arranged inside the fixing seat 11, fixing blocks 13 are fixedly welded to the upper ends of both sides of the fixing seat 11, screws 14 are threadedly connected to the inside of the fixing block 13, a motor 15 is installed inside the fixing seat 11, the model of the motor 15 is SRM-05, which belongs to the prior art, the motor 15 is connected to the control switch, the control switch is connected to the power supply, a mounting ear 16 is fixedly welded to the lower end surface of the shell 1, a connecting sleeve 17 is fixedly welded to one side of the shell 1, a dust cover 18 is fixedly welded to one side of the connecting sleeve 17, a rocker arm 19 is slidably sleeved inside the connecting sleeve 17, the upper end surface of the shell 1 is closely attached to the outer shell 2, a card block 21 is fixedly welded to the lower end of one side of the outer shell 2, a card slot 22 is arranged inside the upper end of one side of the shell 1, and a limiting ring 23 is fixedly welded to the outer ends of the other sides of the shell 1 and the outer shell 2.

[0027] See also Figure 1The upper end of the screw 14 is connected to the shell 1 through a thread, and the lower end surface of the shell 1 is close to the fixing block 13. By using the screw 14 to tighten the shell 1, the fixing block 13 is driven to be close to the lower end surface of the shell 1, which makes it convenient to disassemble and assemble the fixing seat 11, and to repair, replace and maintain the internal motor 15. The heat dissipation hole 12 is connected to the inside of the fixing seat 11. The design of the heat dissipation hole 12 can discharge the heat generated by the motor 15 and increase its service life.

[0028] See also Figure 1-2 The block 21 fastens the card slot 22, and the card slot 22 is fastened by the block 21, and the threaded sleeve 24 is tightened, so as to facilitate the disassembly and assembly of the fixed shell 2. The outer ends of the shell 1 and the other side of the shell 2 are connected by threads with a threaded sleeve 24, and one side of the threaded sleeve 24 is close to the limiting ring 23. The design of the limiting ring 23 can limit and fix the threaded sleeve 24 to prevent it from automatically rotating and affecting the stability of the installation of the shell 2.

[0029] The device starts the motor 15 to drive the transmission device to operate, drive the rocker arm 19 to rotate, and thus control the door switch.

[0030] The automobile central door lock uses a screw 14 to tighten the housing 1, driving the fixing block 13 to be close to the lower end surface of the housing 1, so that the fixing seat 11 can be disassembled and assembled to repair, replace and maintain the internal motor 15. The design of the heat dissipation hole 12 can discharge the heat generated by the motor 15 and increase its service life. The card slot 22 is fastened by the card block 21, and the threaded sleeve 24 is tightened clockwise. The threaded sleeve 24 is close to the limit ring 23, so that the housing 2 can be disassembled and assembled.

[0031] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A central door lock for an automobile, comprising a housing (1), characterized in that: The lower end of the shell (1) is tightly attached to a fixing seat (11), a heat dissipation hole (12) is arranged inside the fixing seat (11), fixing blocks (13) are fixedly welded to the upper ends of both sides of the fixing seat (11), the inside of the fixing block (13) is connected with a screw (14) by threading, a motor (15) is installed inside the fixing seat (11), a mounting ear (16) is fixedly welded to the lower end surface of the shell (1), a connecting sleeve (17) is fixedly welded to one side of the shell (1), a dust cover (18) is fixedly welded to one side of the connecting sleeve (17), a rocker arm (19) is slidably sleeved inside the connecting sleeve (17), and the shell (1) is fixedly welded to the lower end surface of the shell (1), a connecting sleeve (17 ...). The upper end surface of the body (1) is in close contact with the shell (2); a clamping block (21) is fixedly welded to the lower end of one side of the shell (2); a clamping groove (22) is provided inside the upper end of one side of the shell (1); a limiting ring (23) is fixedly welded to the other outer ends of the shell (1) and the shell (2); the upper end of the screw (14) is connected to the shell (1) via a thread; the lower end surface of the shell (1) is in close contact with the fixing block (13); the heat dissipation hole (12) is connected to the interior of the fixing seat (11); a threaded sleeve (24) is connected to the other outer ends of the shell (1) and the shell (2) via a thread; and one side of the threaded sleeve (24) is in close contact with the limiting ring (23).

2. The automobile central door lock according to claim 1, characterized in that: The card block (21) is fastened to the card slot (22).

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