Electric curtain transmission case

Abstract

According to the technical scheme, the electric curtain transmission case is characterized by comprising a shell and a transmission wheel located in the shell, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form a cavity A, the transmission wheel is arranged in the cavity A, a groove is formed in the center of the transmission wheel, and the transmission wheel is arranged in the groove. The groove is connected with grooves which are evenly distributed with the transmission wheel as the rotation center and the axis, the grooves extend to transmission wheel teeth, the upper shell is provided with an annular protrusion which extends downwards to form a cavity B, the cavity B is close to the upper portion of the transmission wheel, the cavity B is provided with an oil can, and an opening in the lower end of the oil can is provided with an oil can ball. And the oil can ball is in contact with the bottom surface of the groove. A gap is formed between the upper end face of the transmission wheel and the shell and provided with a spring. The transmission wheel is lubricated through the oil pot with the oil pot ball, vibration in the transmission process is reduced, loss is reduced, and the longer service life is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, and more specifically to an electric curtain transmission box. Background Art

[0002] At present, with the continuous improvement of science and technology and the continuous improvement of people's quality of life, electric curtains, as one of the representatives of smart homes, have gradually appeared in people's lives, bringing greater convenience to people's lives. Users can use remote control to control the opening and closing of electric curtains. Due to the intelligence and convenience of electric curtains, they are loved by more and more people.

[0003] At present, the Chinese patent with announcement number CN202220243706.0 discloses an electric curtain transmission box, including a shell and a transmission wheel located in the shell, the shell includes an upper shell and a lower shell, the two are connected to each other to form an accommodating space, the transmission wheel is accommodated in the accommodating space, the lower shell includes an end connected to a track and a connecting end connected to the upper shell, the upper shell includes an upper surface and an upper peripheral surface around the upper surface, forming a shape with a downward opening and an open end, the opening at one end is used to connect to the track, the connecting end of the lower shell includes a lower surface and a lower peripheral surface around the lower surface, forming a shape with an upward opening and an open end, the upper shell is inserted into the connecting end of the lower shell, and the upper shell and the lower shell are connected by snapping.

[0004] However, there are still some defects in the above-mentioned existing technology. During operation, collision will occur between the transmission wheel and the track transmission teeth, generating vibration and noise, which will reduce the service life of the transmission wheel; friction will occur between the transmission wheel and the upper shell, so that part of the kinetic energy is used to overcome the sliding friction between the transmission wheel and the upper shell, reducing transmission efficiency and shortening the service life of the transmission wheel. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides an electric curtain transmission box.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a shell and a transmission wheel located in the shell, the shell includes an upper shell and a lower shell, the two are connected to each other to form a cavity A, the transmission wheel is arranged in the cavity A, the center of the transmission wheel is provided with a groove, the groove is connected with grooves evenly distributed with the transmission wheel as the rotation center as the axis, the groove extends to the transmission wheel teeth, the upper shell has an annular protrusion extending downward to form a cavity B, the cavity B is close to the top of the transmission wheel, the cavity B is provided with an oil pot, and the lower end opening of the oil pot is provided with an oil pot ball, and the oil pot ball contacts the bottom surface of the groove; the upper shell is provided with a mounting plate for installation.

[0007] The utility model is further configured as follows: a gap is provided between the upper end surface of the transmission wheel and the housing, and a spring is provided in the gap.

[0008] The utility model is further configured as follows: the upper shell is provided with a through hole, the through hole is connected to the oil pot, and the through hole is provided with an oil pot plug.

[0009] The utility model is further configured as follows: the oil pot plug comprises an air release port for balancing air pressure and a one-way fluid replenishment port for fluid replenishment.

[0010] The utility model is further configured as follows: the oil pot is filled with lubricating oil, and the lubricating oil is poly-α-olefin grease.

[0011] The present invention is further configured as follows: the middle of the mounting plate is bent to form a cavity C, and the one-way fluid infusion port can extend from the cavity C.

[0012] To sum up, the utility model has the following beneficial effects: by setting an oil pot to lubricate the transmission wheel, loss is reduced and a longer service life is obtained, and an oil pot ball is set at the oil outlet opening at the lower end of the oil pot so that the oil pot can automatically adjust the lubrication degree according to the movement state of the transmission wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of this embodiment;

[0014] Figure 2 This is a partial cross-sectional view from the front of this embodiment;

[0015] Figure 3 is a top partial cross-sectional view of this embodiment;

[0016] Figure numerals: 1. Shell; 11. Lower shell; 12. Cavity A; 13. Upper shell; 2. Transmission wheel; 21. Groove; 22. Groove; 3. Annular protrusion; 31. Cavity B; 32. Oil pot; 321. Oil pot ball; 33. Mounting plate; 331. Cavity C; 4. Oil pot plug; 41. Air vent; 42. One-way fluid replenishment port; 5. Spring. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings.

[0018] This embodiment discloses an electric curtain transmission box, such as Figures 1 to 3As shown, it includes a shell 1 and a transmission wheel 2 located in the shell 1, the shell 1 includes an upper shell 13 and a lower shell 11, the two are connected to each other to form a cavity A12, the transmission wheel 2 is arranged in the cavity A12, the center of the transmission wheel 2 is provided with a groove 21, the groove 21 is connected with grooves 22 uniformly distributed with the transmission wheel 2 as the rotation center as the axis, the groove 22 extends to the teeth of the transmission wheel 2, the upper shell 13 has an annular protrusion 3 extending downward to form a cavity B31, the cavity B31 is close to the top of the transmission wheel 2, the cavity B31 is provided with an oil pot 32, the oil pot 32 stores lubricating oil, and the lower end opening of the oil pot 32 is provided with an oil pot ball 321. The new horizontal arrangement It is used to transmit motor power at a high place to drive the curtain to move horizontally. In the present invention, the rear oil pot 32 is installed in a vertical state, so that when the present invention is used, the oil pot ball 321 can be stably at the lower end of the oil pot 32 opening under the action of gravity, and the oil pot ball 321 contacts the bottom surface of the groove 21. The oil pot ball 321 will roll with the rotation of the groove 21. When the oil pot ball 321 rolls, the lubricating oil stored in the oil pot 32 will flow out with the rolling of the oil pot ball 321. The lubricating oil flowing into the groove 21 flows along the groove 22 extending from the groove 21 to the gear teeth of the transmission wheel 2. The grooves 22 are evenly distributed with the transmission wheel 2 as the rotation center, so that the transmission wheel 2 can be evenly lubricated. The upper shell 13 is provided with a mounting plate 33 for installation. When the gears begin to vibrate due to insufficient lubrication, the groove 21 provided on the gear will move up and down. The bottom surface of the moving groove 21 will push the oil pot ball 321 to move upward, so that the flow rate of the lubricating oil stored in the oil pot 32 into the groove 21 will increase, thereby increasing the degree of lubrication.

[0019] Further improvement, a gap is formed between the upper end surface of the transmission wheel 2 and the housing 1, and a spring 5 is provided in the gap. The spring 5 can support the transmission wheel 2, so that the transmission wheel 2 can be stably and reliably arranged in the cavity A12, so that when the novel device is working normally, the transmission wheel 2 will not trigger the oil pot ball 321 by mistake, thereby wasting lubricating oil.

[0020] As a further improvement, the upper housing 13 is provided with a through hole, which is connected to the oil pot 32 and is provided with an oil pot plug 4. This can form a relatively closed internal space, thereby preventing external impurities from contaminating the lubricating oil in the oil pot 32 and preventing impurities or foreign matter from entering the gears, thereby avoiding damage to the gears or affecting transmission efficiency.

[0021] As a further improvement, the oil pot stopper 4 includes an air vent 41 for equalizing air pressure and a one-way refill port 42 for refilling. The air vent 41 balances air pressure, allowing the lubricating oil to flow out smoothly when the oil pot ball 321 is lifted. Using the one-way refill port 42 eliminates the difficulty of refilling the lubricating oil due to the high air pressure inside the oil pot 32. The one-way refill port 42 is a one-way port, allowing liquid to enter only from the outside, preventing it from flowing out, providing a very convenient solution.

[0022] Further improvement, the oil pot 32 is filled with lubricating oil, which is polyalphaolefin grease. The polyalphaolefin grease can provide excellent thermal stability and low temperature performance and has good compatibility with most materials.

[0023] Further improvement, the center of the mounting plate 33 is curved to form a cavity C331, and the one-way fluid infusion port 42 can extend from the cavity C331. After the mounting plate 33 and the housing are installed, they are relatively fixed and inconvenient for frequent disassembly. The one-way fluid infusion port 42 can extend from the cavity C331 set in the center of the mounting plate 33, allowing fluid infusion without disassembling the device.

[0024] Working principle of the utility model

[0025] During use, the oiler ball 321 normally contacts the bottom surface of the groove 21 and rolls under the drive wheel 2. As the oiler ball 321 rolls, the lubricating oil stored in the oiler 32 will slightly flow out, simply lubricating the gears of the drive wheel. When the drive wheel 2 is insufficiently lubricated, it may become stuck or vibrate. The oiler ball 321 increases the flow of lubricating oil out of the lower opening of the oiler 32, improving lubrication. The sticking and vibration of the drive wheel 2 will gradually be eliminated by the increased flow of lubricating oil, and the flow of lubricating oil will automatically decrease as the sticking and vibration subside.

[0026] When the oil pot 32 needs to be replenished with lubricating oil, the lubricating oil can be squeezed into the oil pot 32 through the extendable one-way liquid replenishing port 42, and the liquid replenishing can be completed without disassembling the present invention.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric curtain transmission box, comprising a housing (1) and a transmission wheel (2) located in the housing (1), wherein the housing (1) comprises an upper housing (13) and a lower housing (11), the two being connected to form a cavity A (12), and the transmission wheel (2) is disposed in the cavity A (12), and is characterized in that: The center of the transmission wheel (2) is provided with a groove (21), and the groove (21) is connected to grooves (22) uniformly distributed with the transmission wheel (2) as the rotation center as the axis. The grooves (22) extend to the gear teeth of the transmission wheel (2). The upper shell (13) has an annular protrusion (3) extending downward to form a cavity B (31). The cavity B (31) is close to the top of the transmission wheel (2). The cavity B (31) is provided with an oil pot (32). The lower end opening of the oil pot (32) is provided with an oil pot ball (321), and the oil pot ball (321) contacts the bottom surface of the groove (21); the upper shell (13) is provided with a mounting plate (33) for mounting.

2. The electric curtain transmission box according to claim 1, characterized in that: There is a gap between the upper end surface of the transmission wheel (2) and the housing (1), and a spring (5) is provided in the gap.

3. The electric curtain transmission box according to claim 1, characterized in that: The upper shell (13) is provided with a through hole, the through hole is connected to the oil pot (32), and the through hole is provided with an oil pot plug (4).

4. The electric curtain transmission box according to claim 3, characterized in that: The oil pot plug (4) comprises an air release port (41) for balancing air pressure and a one-way fluid replenishment port (42) for replenishing fluid.

5. The electric curtain transmission box according to claim 1, characterized in that: The oil pot (32) is filled with lubricating oil, which is polyalphaolefin grease.

6. The electric curtain transmission box according to claim 4, characterized in that: The middle of the mounting plate (33) is bent to form a cavity C (331), and the one-way fluid infusion port (42) can extend from the cavity C (331).

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