Auxiliary transmission case of curtain guide rail

Abstract

The utility model relates to the technical field of curtain accessories, and particularly discloses an auxiliary transmission case of a curtain guide rail, which comprises a shell, a guide rail connecting port is arranged at one end of the shell, a transmission wheel cavity communicated with the guide rail connecting port is arranged in the shell, a synchronizing wheel is mounted in the transmission wheel cavity, and a transmission shaft is arranged in the transmission wheel cavity. A first synchronous wheel cover is arranged at the upper end of the transmission wheel cavity, a second synchronous wheel cover is arranged at the lower end of the transmission wheel cavity, the first synchronous wheel cover and the second synchronous wheel cover are detachably connected with the shell, and the synchronous wheel is connected with the first synchronous wheel cover and the second synchronous wheel cover. According to the auxiliary transmission case, the assembling process is simpler, and during maintenance, the internal structure can be exposed only by disassembling one synchronous wheel cover, so that the synchronous wheels can be taken out independently, the synchronous belt is not prone to falling off, and maintenance is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain accessories, in particular to an auxiliary transmission box of a curtain guide rail. Background Art

[0002] With the development of smart homes, electric curtains are widely used because they save the trouble of manually opening and closing curtains. On the guide rails of electric curtains, a sub-transmission box is usually installed at the end of one side, which is mainly used for steering the transmission belt.

[0003] For example, Chinese patent document CN219270657U discloses an electric curtain transmission box, which relates to the application technical field of curtains and includes a main installation cabin; the interior of the main installation cabin is evenly provided with installation holes, a secondary cover plate is installed on the top of the main installation cabin, an axle wheel is fixedly installed inside the main installation cabin, and a gear is fixedly sleeved on the outside of the axle wheel, and an axle core is installed inside the axle wheel.

[0004] According to the drawings and instructions disclosed above, this transmission box is divided into two shells, which are covered together to fix the internal gears. During the actual installation process, the synchronous belt needs to be inserted into the shell and then wrapped around the gears. However, after this structure is covered, it is difficult to find out whether the internal connection is complete, and when repairing, the entire shell needs to be disassembled, and the synchronous belt is easy to fall out of the shell, increasing the difficulty of repair. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides an auxiliary transmission box for a curtain guide rail, aiming to solve the above problems.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a secondary transmission box of a curtain guide rail, comprising a shell, one end of the shell is provided with a guide rail connecting port, the shell has a transmission wheel cavity connected to the guide rail connecting port, a synchronous wheel is installed in the transmission wheel cavity, the upper end of the transmission wheel cavity is provided with a first synchronous wheel cover, and the lower end is provided with a second synchronous wheel cover, the first synchronous wheel cover and the second synchronous wheel cover are respectively detachably connected to the shell, and the synchronous wheel is respectively connected to the first synchronous wheel cover and the second synchronous wheel cover.

[0007] The beneficial effect of the utility model is that the first synchronous wheel cover and the second synchronous wheel cover are respectively detachably connected to the shell, so that the synchronous wheel is stably inside the shell. In the actual installation process, the first synchronous wheel cover can be installed on the shell first, and after the synchronous belt is inserted into the shell, the synchronous wheel can be conveniently installed, so that after the synchronous wheel and the synchronous belt are meshed, the second synchronous wheel cover can be installed on the shell, the assembly process is simpler, and during maintenance, only one of the synchronous wheel covers needs to be removed to expose the internal structure, so that the synchronous wheel can be taken out separately, the synchronous belt is not easy to fall off, and maintenance is more convenient.

[0008] Furthermore, a limiting rib located on the inner wall of the shell is provided between the guide rail connection port and the transmission wheel cavity.

[0009] With the above further structure, when installing the guide rail, the guide rail only needs to be inserted into the guide rail connection port until it is pressed against the limit rib, so as to facilitate the alignment of the installation screw holes and make installation easier.

[0010] Furthermore, the first synchronous wheel cover includes a first cover plate, a synchronous wheel seat is provided on one side of the first cover plate, a first axial hole seat is provided at the center of the synchronous wheel seat, only a first positioning groove is provided on one side of the first cover plate, and a first positioning rib located on the inner wall of the shell is provided on one side of the transmission wheel cavity, and the first positioning rib corresponds to the first positioning groove.

[0011] After adopting the above further structure, the first cover plate can be positioned and installed on the housing through the action of the first positioning rib and the first positioning groove, so that the first shaft hole seat corresponds to the synchronous wheel, and the installation is more convenient and accurate.

[0012] Furthermore, the inner wall of the synchronous wheel seat is connected to the outer wall of the first shaft hole seat via a plurality of first reinforcing ribs, and the inner diameter of the synchronous wheel seat is greater than the outer diameter of the synchronous wheel.

[0013] After adopting the above-mentioned further structure, the first reinforcing rib can make the first shaft hole seat stronger and more supportive, thereby preventing damage caused by the rotation of the synchronous wheel.

[0014] Furthermore, the second synchronous wheel cover includes a second cover plate, a side of the second cover plate close to the synchronous wheel is provided with an axial hole, an outer wall of the second cover plate is provided with a second positioning groove, and one side of the transmission wheel cavity is provided with a second positioning rib located on the inner wall of the shell, and the second positioning rib corresponds to the second positioning groove.

[0015] After adopting the above further structure, the second cover plate can be positioned and installed on the housing through the action of the second positioning rib and the second positioning groove, so that the shaft hole corresponds to the synchronous wheel, which facilitates accurate installation position during assembly.

[0016] Furthermore, a second shaft hole seat is arranged on the other side of the second cover plate, and a plurality of second reinforcing ribs are arranged on the outer wall of the second shaft hole seat.

[0017] After adopting the above further structure, the strength of the second shaft hole seat is better.

[0018] Furthermore, a first shaft head corresponding to the first shaft hole seat is provided at one end of the synchronous wheel, and a second shaft head corresponding to the shaft hole is provided at the other end; the synchronous wheel, the first shaft head and the second shaft head are hollow; a polygonal hole connected to the shaft hole is provided in the second shaft hole seat; a shaft rod is passed through the polygonal hole, the shaft hole, the synchronous wheel and the first shaft hole seat; a rod head of matching shape is provided at one end of the shaft rod close to the polygonal hole.

[0019] After adopting the above-mentioned further structure, the first cover plate, the second cover plate and the synchronous wheel can be further firmly connected together through the shaft rod, so that the overall structure is more stable and has a longer practical life.

[0020] Furthermore, a screw sleeve is arranged in the transmission wheel cavity, and screw holes corresponding to the screw sleeve are opened on the first cover plate and the second cover plate.

[0021] After adopting the above further structure, the first cover plate and the second cover plate are further stabilized on the shell, and the overall structure is more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the auxiliary transmission box of the utility model.

[0023] Figure 2 It is a schematic diagram of the exploded structure of the auxiliary transmission box of the utility model.

[0024] Figure 3 This is one of the three-dimensional structural schematic diagrams of the shell.

[0025] Figure 4 This is the second schematic diagram of the three-dimensional structure of the shell.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the first synchronous wheel cover.

[0027] Figure 6 This is one of the three-dimensional structural schematic diagrams of the second synchronous wheel cover.

[0028] Figure 7 This is the second schematic diagram of the three-dimensional structure of the second synchronous wheel cover.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the synchronous wheel.

[0030] In the figure: housing 1, limiting rib 2, first synchronous wheel cover 3, second synchronous wheel cover 4, synchronous wheel 5, guide rail connecting port 6, transmission wheel cavity 7, screw sleeve 8, first positioning rib 9, second positioning rib 10, first cover plate 11, synchronous wheel seat 12, first shaft hole seat 13, first positioning groove 14, first reinforcing rib 15, second cover plate 16, second positioning groove 17, shaft hole 18, screw hole 19, second shaft hole seat 20, second reinforcing rib 21, first shaft head 22, second shaft head 23. DETAILED DESCRIPTION

[0031] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Combination Figures 1 to 8 The auxiliary transmission box of a curtain guide rail shown in the figure comprises a housing 1, one end of the housing 1 is provided with a guide rail connection port 6, the housing 1 has a transmission wheel cavity 7 connected to the guide rail connection port 6, a synchronous wheel 5 is installed in the transmission wheel cavity 7, the upper end of the transmission wheel cavity 7 is provided with a first cover opening located on the housing 1, a first synchronous wheel cover 3 is arranged in the first cover opening, a second cover opening is provided on the housing 1 at the lower end of the transmission wheel cavity 7, a second synchronous wheel cover 4 is arranged in the second cover opening, the first synchronous wheel cover 3 and the second synchronous wheel cover 4 are respectively detachably connected to the housing 1, and the synchronous wheel 5 is respectively connected to the first synchronous wheel cover 3 and the second synchronous wheel cover 4 is connected; in this embodiment, the first synchronous wheel cover 3 and the second synchronous wheel cover 4 are detachably connected to the housing 1, so that the synchronous wheel 5 is stably inside the housing 1. In the actual installation process, the first synchronous wheel cover 3 can be installed on the housing 1 first, and after the synchronous belt is inserted into the housing, the synchronous wheel 5 can be conveniently installed, so that the synchronous wheel 5 is meshed with the synchronous belt, and then the second synchronous wheel cover 4 is installed on the housing 1. The assembly process is simpler, and during maintenance, only one of the synchronous wheel covers needs to be removed to expose the internal structure, so that the synchronous wheel 5 can be taken out separately, the synchronous belt is not easy to fall off, and maintenance is more convenient.

[0033] In this embodiment, a limiting rib 2 is provided on the inner wall of the shell 1 between the guide rail connecting port 6 and the transmission wheel cavity 7; through the limiting rib 2, when installing the guide rail, it is only necessary to insert the guide rail into the guide rail connecting port 6 until it is pressed against the limiting rib 2, so as to facilitate the alignment of the installation screw holes and make the installation easier.

[0034] like Figure 5As shown, the first synchronous wheel cover 3 of the present embodiment includes a first cover plate 11, a synchronous wheel seat 12 is arranged on one side of the first cover plate 11, a first shaft hole seat 13 is arranged at the center of the synchronous wheel seat 12, only a first positioning groove 14 is arranged on one side of the first cover plate 11, and a first positioning rib 9 located on the inner wall of the shell 1 is arranged on one side of the transmission wheel cavity 7, and the first positioning rib 9 corresponds to the first positioning groove 14; through the action of the first positioning rib 9 and the first positioning groove 14, the first cover plate 11 can be positioned and installed on the shell 1, so that the first shaft hole seat 13 corresponds to the synchronous wheel 5, and the installation is more convenient and accurate.

[0035] It should be noted that, in this embodiment, the inner wall of the synchronous wheel seat 12 and the outer wall of the first shaft hole seat 13 are connected by a plurality of first reinforcing ribs 15, and the inner diameter of the synchronous wheel seat 12 is larger than the outer diameter of the synchronous wheel 5; the first reinforcing ribs 15 can make the first shaft hole seat 13 stronger and more supportive, thereby preventing damage caused by the rotation of the synchronous wheel 5.

[0036] like Figure 6 and Figure 7 As shown, the second synchronous wheel cover 4 of the present embodiment includes a second cover plate 16, and an axial hole 18 is provided on the side of the second cover plate 16 close to the synchronous wheel 5, and a second positioning groove 17 is opened on the outer wall of the second cover plate 16, and a second positioning rib 10 is provided on the inner wall of the shell 1 on one side of the transmission wheel cavity 7, and the second positioning rib 10 corresponds to the second positioning groove 17; through the action of the second positioning rib 10 and the second positioning groove 17, the second cover plate 16 can be positioned and installed on the shell 1, so that the axial hole 18 corresponds to the synchronous wheel 5, which is convenient for accurate installation position during assembly.

[0037] It should be noted that a second shaft hole seat 20 is disposed on the other side of the second cover plate 16 , and a plurality of second reinforcing ribs 21 are disposed on the outer wall of the second shaft hole seat 20 ; the strength of the second shaft hole seat 20 is better.

[0038] Combination Figures 5 to 8 As shown, one end of the synchronous wheel 5 of this embodiment is provided with a first shaft head 22 corresponding to the first shaft hole seat 13, and the other end is provided with a second shaft head 23 corresponding to the shaft hole 18. The synchronous wheel 5, the first shaft head 22 and the second shaft head 23 are hollow, and a polygonal hole connected to the shaft hole 18 is opened in the second shaft hole seat 20. A shaft rod is penetrated through the polygonal hole, the shaft hole 18, the synchronous wheel 5 and the first shaft hole seat 13. The synchronous wheel 5 can rotate around the shaft rod, and a rod head of matching shape is provided at one end of the shaft rod close to the polygonal hole; the first cover plate 11, the second cover plate 16 and the synchronous wheel 5 can be further firmly connected together through the shaft rod, and the overall structure is more stable and has a longer practical life.

[0039] It should also be noted that a screw sleeve 8 is provided in the transmission wheel cavity 7 of this embodiment, and screw holes 19 corresponding to the screw sleeve 8 are opened on the first cover plate 11 and the second cover plate 16; the first cover plate 11 and the second cover plate 16 are further stabilized on the shell 1, and the overall structure is more compact.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A secondary transmission box for a curtain rail, comprising a housing (1), characterized in that: A guide rail connection port (6) is provided at one end of the housing (1), a transmission wheel cavity (7) in communication with the guide rail connection port (6) is provided in the housing (1), a synchronous wheel (5) is installed in the transmission wheel cavity (7), a first synchronous wheel cover (3) is provided at the upper end of the transmission wheel cavity (7), and a second synchronous wheel cover (4) is provided at the lower end, the first synchronous wheel cover (3) and the second synchronous wheel cover (4) are respectively detachably connected to the housing (1), and the synchronous wheel (5) is respectively connected to the first synchronous wheel cover (3) and the second synchronous wheel cover (4).

2. The auxiliary transmission box of the curtain guide rail according to claim 1, characterized in that: A limiting rib (2) located on the inner wall of the housing (1) is provided between the guide rail connection port (6) and the transmission wheel cavity (7).

3. The auxiliary transmission box of the curtain guide rail according to claim 1, characterized in that: The first synchronous wheel cover (3) comprises a first cover plate (11), a synchronous wheel seat (12) is arranged on one side of the first cover plate (11), a first shaft hole seat (13) is arranged at the center of the synchronous wheel seat (12), only a first positioning groove (14) is arranged on one side of the first cover plate (11), and a first positioning rib (9) located on the inner wall of the housing (1) is arranged on one side of the transmission wheel cavity (7), and the first positioning rib (9) corresponds to the first positioning groove (14).

4. The auxiliary transmission box of the curtain guide rail according to claim 3, characterized in that: The inner wall of the synchronous wheel seat (12) and the outer wall of the first shaft hole seat (13) are connected via a plurality of first reinforcing ribs (15), and the inner diameter of the synchronous wheel seat (12) is greater than the outer diameter of the synchronous wheel (5).

5. The auxiliary transmission box of the curtain guide rail according to claim 3, characterized in that: The second synchronous wheel cover (4) comprises a second cover plate (16), a shaft hole (18) is provided on a side of the second cover plate (16) close to the synchronous wheel (5), a second positioning groove (17) is provided on an outer wall of the second cover plate (16), and a second positioning rib (10) is provided on an inner wall of the housing (1) on one side of the transmission wheel cavity (7), and the second positioning rib (10) corresponds to the second positioning groove (17).

6. The auxiliary transmission box of the curtain guide rail according to claim 5, characterized in that: A second shaft hole seat (20) is provided on the other side of the second cover plate (16), and a plurality of second reinforcing ribs (21) are provided on the outer wall of the second shaft hole seat (20).

7. The auxiliary transmission box of the curtain guide rail according to claim 6, characterized in that: One end of the synchronous wheel (5) is provided with a first shaft head (22) corresponding to the first shaft hole seat (13), and the other end is provided with a second shaft head (23) corresponding to the shaft hole (18); the synchronous wheel (5), the first shaft head (22) and the second shaft head (23) are hollow; a polygonal hole connected to the shaft hole (18) is provided in the second shaft hole seat (20); a shaft rod is passed through the polygonal hole, the shaft hole (18), the synchronous wheel (5) and the first shaft hole seat (13); a rod head of matching shape is provided at one end of the shaft rod close to the polygonal hole.

8. The auxiliary transmission box of the curtain guide rail according to claim 6, characterized in that: A screw sleeve (8) is arranged in the transmission wheel cavity (7), and screw holes (19) corresponding to the screw sleeve (8) are provided on the first cover plate (11) and the second cover plate (16).

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