Mounting structure of automobile ceiling screen spring bolt transmission mechanism

Abstract

The utility model discloses an installation structure of an automobile ceiling screen spring bolt transmission mechanism, which comprises an installation frame, a motor, a worm arranged on an output shaft of the motor, a driving gear shaft meshed and matched with the worm, a driven gear shaft directly or indirectly meshed and matched with the driving gear shaft, a driving fixed shaft and a driven fixed shaft, the driving gear shaft is arranged on the driving fixing shaft in a sleeving mode and can rotate relative to the driving fixing shaft, the driven gear shaft is arranged on the driven fixing shaft in a sleeving mode and can rotate relative to the driven fixing shaft, and the mounting frame comprises two side walls opposite to the driving gear shaft and the driven gear shaft. The driving fixing shaft and the driven fixing shaft are both arranged and fixed on the two side walls in a penetrating mode, and at least one end portion, penetrating through the two side walls, of the driving fixing shaft is provided with a threaded section. According to the utility model, the threaded section is arranged at the end part of the gear shaft, so that the gear shaft is prevented from axially moving, and the nut is tightly assembled on the side wall of the mounting rack to enhance the overall strength of the mounting rack.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronics, and more particularly to an installation structure of a locking tongue transmission mechanism of an automobile ceiling screen. Background Art

[0002] In the prior art, the locking tongue of a car ceiling plate is driven by a motor-gear transmission mechanism. The gear shaft is typically secured with a retaining spring to prevent it from falling out. This arrangement, however, can result in axial movement of the gear shaft, and the mounting housing of the transmission mechanism is a sheet metal component, which is weak in strength. Summary of the Invention

[0003] The utility model overcomes the shortcomings of the prior art and provides an installation structure for a car ceiling screen lock tongue transmission mechanism. A threaded section that is tightly matched with a nut is provided at the end of the gear shaft to prevent axial movement of the gear shaft. After the nut is tightly fitted on the side wall of the installation frame, the overall strength of the installation frame is enhanced.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A mounting structure for a car ceiling screen lock tongue transmission mechanism includes a mounting frame, a motor, a worm gear provided on an output shaft of the motor, a driving gear shaft meshing with the worm gear, and a driven gear shaft meshing with the driving gear shaft directly or indirectly. The mounting structure also includes an active fixed shaft and a driven fixed shaft. The active gear shaft is sleeved on the active fixed shaft and can be rotatable relative to the active fixed shaft. The driven gear shaft is sleeved on the driven fixed shaft and can be rotatable relative to the driven fixed shaft. The mounting frame includes two side walls arranged opposite to the active gear shaft and the driven gear shaft. The active fixed shaft and the driven fixed shaft are both passed through and fixed on the two side walls. A threaded section is formed on at least one end of the active fixed shaft passing through the two side walls. A threaded section is also formed on at least one end of the driven fixed shaft passing through the two side walls. Nuts are fitted on the corresponding threaded sections.

[0006] Preferably, the mounting frame further includes a top wall located above the two side walls, an opening is provided on the top wall, an extension section is provided downwardly from the opening, and a shaft sleeve is provided at the front end of the worm gear on the motor output shaft, and the shaft sleeve is fixed on the extension section.

[0007] Preferably, a base is further included, the mounting frame is fixedly mounted on the base, and the base is provided with a receiving groove for receiving the motor.

[0008] Preferably, the mounting frame also includes side extensions located on both sides of the two side walls, a fixing column is provided on the base at the side extension, a positioning groove is provided on the side extension at a position corresponding to the fixing column, and the fixing column passes through the positioning groove and is fixed to the base by fasteners.

[0009] Preferably, a positioning column is further provided on the base at the side extension portion, and a positioning hole is provided on the side extension portion at a position corresponding to the positioning column, and the positioning column is arranged through the positioning hole.

[0010] Preferably, the two side walls, the two side extensions, the top wall and the extension section of the mounting frame are fixed or integrally arranged.

[0011] Beneficial effects of the utility model:

[0012] The utility model has a reasonable structural design. By arranging a threaded section that is tightly matched with the nut at the end of the gear shaft, the axial movement of the gear shaft is prevented, the transmission noise is effectively reduced, the transmission accuracy is improved, and the service life is increased. In addition, after the nut is tightly fitted on the side wall of the mounting frame, the overall strength of the mounting frame is strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of a specific embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram showing the structure of a motor, a driving gear shaft, and a driven gear shaft according to a specific embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the mounting frame according to a specific embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a specific embodiment of the utility model reflecting that the mounting bracket is located on the base;

[0017] Figure 5 This is a schematic diagram of the structure of the base according to a specific embodiment of the present invention;

[0018] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0019] In the figure: 1. Mounting frame; 11. Side wall; 12. Top wall; 121. Opening; 122. Extension section; 13. Side extension; 131. Positioning groove; 132. Positioning hole; 2. Motor; 21. Worm; 22. Bushing; 3. Driving gear shaft; 31. Driving fixed shaft; 4. Driven gear shaft; 41. Driven fixed shaft; 5. Threaded section; 6. Nut; 7. Base; 71. Receiving groove; 72. Fixing column; 73. Positioning column; 8. Fastener. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1-6 As shown, an installation structure of a car ceiling screen lock tongue transmission mechanism includes a mounting frame 1, a motor 2, a worm 21 provided on the output shaft of the motor 2, a driving gear shaft 3 meshing with the worm 21, and a driven gear shaft 4 directly or indirectly meshing with the driving gear shaft 3, and also includes an active fixed shaft 31 and a driven fixed shaft 41, the active gear shaft 3 is sleeved on the active fixed shaft 31 and can be rotatable relative to the active fixed shaft 31, the driven gear shaft 4 is sleeved on the driven fixed shaft 41 and can be rotatable relative to the driven fixed shaft 41, the mounting frame 1 includes two side walls 11 arranged opposite to the driving gear shaft 3 and the driven gear shaft 4, the active fixed shaft 31 and the driven fixed shaft 41 are both passed through and fixed on the two side walls 11, the active fixed shaft 31 passes through at least one end of the two side walls 11 to form a threaded section 5, and the driven fixed shaft 41 passes through at least one end of the two side walls 11 to form a threaded section 5, and the corresponding threaded sections 5 are fitted with nuts 6.

[0022] By adopting the above technical solution, in the present invention, a threaded section 5 that is tightly matched with the nut 6 is provided at the end of the gear shaft to prevent the gear shaft from axial movement, and the nut 6 is tightly fitted on the side wall 11 of the mounting frame 1 to strengthen the overall strength of the mounting frame 1.

[0023] As an improved specific embodiment, the mounting frame 1 also includes a top wall 12 located above the two side walls 11, an opening 121 is provided on the top wall 12, and an extension section 122 is provided downwardly from the opening 121 of the top wall 12. The output shaft of the motor 2 is located at the front end of the worm 21 and a shaft sleeve 22 is provided, and the shaft sleeve 22 is fixed on the extension section 122.

[0024] By adopting the above technical solution and setting it up in this way, by fixing the sleeve 22 on the extension section 122, the sleeve 22 can be better positioned and fixed, so that the transmission of the output shaft of the motor 2 is more stable.

[0025] As an improved specific embodiment, it also includes a base 7, and the mounting frame 1 is fixedly installed on the base 7. The base 7 is provided with a accommodating groove 71 for accommodating the motor 2; the mounting frame 1 also includes a side extension portion 13 located on both sides of the two side walls 11, and a fixing column 72 is provided on the base 7 at the side extension portion 13, and a positioning groove 131 is provided on the side extension portion 13 corresponding to the fixing column 72. The fixing column 72 passes through the positioning groove 131 and is fixed to the base 7 by the fastener 8; a positioning column 73 is also provided on the base 7 at the side extension portion 13, and a positioning hole 132 is provided on the side extension portion 13 corresponding to the positioning column 73, and the positioning column 73 is arranged through the positioning hole 132.

[0026] By adopting the above technical solution, the arrangement of the accommodating groove 71 on the base 7 can accommodate and position the motor 2, and the corresponding arrangement of the fixing column 72 and the positioning groove 131 can realize the fixed installation of the mounting frame 1 on the base 7 through the fastener 8, and the arrangement of the positioning column 73 and the positioning hole 132 can provide a good pre-positioning effect when the mounting frame 1 is installed on the base 7.

[0027] As an improved specific embodiment, the two side walls 11 , the two side extensions 13 , the top wall 12 and the extension section 122 of the mounting frame 1 are fixed or integrally provided.

[0028] By adopting the above technical solution, the overall structural strength of the mounting frame 1 can be further ensured.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mounting structure for a car ceiling screen lock tongue transmission mechanism, comprising a mounting frame (1), a motor (2), a worm (21) provided on an output shaft of the motor (2), a driving gear shaft (3) meshing with the worm (21), and a driven gear shaft (4) directly or indirectly meshing with the driving gear shaft (3), characterized in that: The invention also includes an active fixed shaft (31) and a driven fixed shaft (41). The active gear shaft (3) is sleeved on the active fixed shaft (31) and can be rotated relative to the active fixed shaft (31). The driven gear shaft (4) is sleeved on the driven fixed shaft (41) and can be rotated relative to the driven fixed shaft (41). The mounting frame (1) includes two side walls (11) arranged opposite to the active gear shaft (3) and the driven gear shaft (4). The active fixed shaft (31) and the driven fixed shaft (41) are both passed through and fixed on the two side walls (11). At least one end of the active fixed shaft (31) passing through the two side walls (11) is formed with a threaded section (5). At least one end of the driven fixed shaft (41) passing through the two side walls (11) is also formed with a threaded section (5). Nuts (6) are fitted on the corresponding threaded sections (5).

2. The installation structure of the automobile ceiling screen lock tongue transmission mechanism according to claim 1, characterized in that: The mounting frame (1) further comprises a top wall (12) located above the two side walls (11), an opening (121) being provided on the top wall (12), an extension section (122) being provided downwardly from the opening (121), and a shaft sleeve (22) being provided at the front end of the worm (21) on the output shaft of the motor (2), the shaft sleeve (22) being fixed on the extension section (122).

3. The installation structure of the automobile ceiling screen lock tongue transmission mechanism according to claim 1 or 2, characterized in that: It also includes a base (7), the mounting frame (1) is fixedly mounted on the base (7), and the base (7) is provided with a receiving groove (71) for receiving the motor (2).

4. The installation structure of the automobile ceiling screen lock tongue transmission mechanism according to claim 3, characterized in that: The mounting frame (1) further comprises side extensions (13) located on both sides of the two side walls (11); a fixing column (72) is provided on the base (7) at the side extensions (13); a positioning groove (131) is provided on the side extensions (13) at a position corresponding to the fixing column (72); the fixing column (72) passes through the positioning groove (131) and is fixed to the base (7) via a fastener (8).

5. The installation structure of the automobile ceiling screen lock tongue transmission mechanism according to claim 4, characterized in that: A positioning column (73) is further provided on the base (7) at the side extension portion (13), and a positioning hole (132) is provided on the side extension portion (13) at a position corresponding to the positioning column (73), and the positioning column (73) is arranged through the positioning hole (132).

6. The installation structure of the automobile ceiling screen lock tongue transmission mechanism according to claim 5, characterized in that: The two side walls (11), the two side extensions (13), the top wall (12) and the extension section (122) of the mounting frame (1) are fixed or integrally arranged.

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