CN211058563U - Double-screw mechanical synchronous window opener - Google Patents

Abstract

The utility model discloses a double-screw mechanical synchronous window opener, which belongs to the field of window openers and comprises two screw window openers arranged side by side, wherein each screw window opener comprises a screw assembly, an aluminum alloy shell and a direct-current speed reducing motor, the screw assembly comprises a screw connected with the direct-current speed reducing motor and a mandril sleeved outside the screw, the lower end of the mandril is fixed with a slider sleeved on the screw in a threaded manner, and the periphery of the slider is longitudinally connected with the inner wall of the aluminum alloy shell in a sliding manner; gear boxes are arranged on the two screw type window opening machines, a transmission rod is connected between the two gear boxes, a screw of at least one screw type window opening machine is connected with a direct current speed reduction motor, and a group of bevel gears for realizing transmission between the corresponding screw and the transmission rod are arranged in the gear boxes. The utility model discloses can solve two synchronization problems between the machine of windowing with mechanical mode, can avoid the machine function of windowing to receive obvious adverse effect because of the electric current is unusual, and be difficult for receiving the interference, can ensure corresponding guard action.

Description

Double-screw mechanical synchronous window opener

Technical Field

The utility model relates to a machine field of windowing, specificly relates to a two screw type machinery machine of windowing in step.

Background

The screw rod window opening machine generally comprises a screw rod assembly, an aluminum alloy shell and a direct current speed reducing motor, wherein the screw rod assembly comprises a screw rod connected with the direct current speed reducing motor and a push rod sleeved outside the screw rod, the lower end of the push rod is fixedly provided with a slide block sleeved on the screw rod in a threaded manner, and the peripheral side of the slide block is longitudinally connected with the inner wall of the aluminum alloy shell in a sliding manner. When the aluminum alloy push-pull ejector rod is applied, the direct-current speed reduction motor drives the screw rod to rotate, the slider can be driven to move along the length direction of the screw rod, and then the push-pull ejector rod extends out of or retracts into the aluminum alloy shell. Most common double-screw synchronous window opening machines on the market are electronic synchronization, the synchronization is realized by detecting the current of the two screw window opening machines, when the working current of one window opening machine exceeds the current design limit value, the power is cut off and the operation is stopped, or the operation is stopped for other reasons, the other window opening machine also stops working after the delay time (generally 1-8S) is set, so that the window sash is prevented from being damaged. This approach has the following problems: firstly, only the current protection function can be realized, and the synchronization is not completely meaningful; when the working current of the window opener is larger than the limited current of the synchronizer, the window opener stops working and cannot open the window sash; thirdly, when the circuit board of the synchronizer is interfered, the synchronizer cannot play a corresponding protection role, the reliability is insufficient, and the application range is small.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a double-screw mechanical synchronization machine of windowing, it solves two synchronization problems between the machine of windowing with mechanical mode, and it is stronger than electron synchronization mode reliability, can avoid the machine of windowing function to receive obvious adverse effect because of the electric current is unusual, and is difficult for receiving the interference, can ensure corresponding guard action, and application scope is wider.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a double-screw mechanical synchronous window opener comprises two screw window openers arranged in parallel, wherein each screw window opener comprises a screw assembly, an aluminum alloy shell and a direct-current speed reduction motor, each screw assembly comprises a screw and an ejector rod sleeved outside the screw, a sliding block in threaded sleeve connection with the screw is fixed at the lower end of each ejector rod, and the peripheral side of each sliding block is longitudinally connected with the inner wall of the aluminum alloy shell in a sliding manner; the lower end of the screw rod assembly is connected with a gear box, the aluminum alloy shell comprises an upper shell and a lower shell, the upper shell is connected to the upper end of the gear box and sleeved on the outer side of the screw rod assembly, the lower shell is connected to the lower end of the gear box, two ends of the screw rod are rotatably connected with corresponding end portions of the upper shell, a direct-current speed reduction motor is arranged in the lower shell of at least one screw rod type window opening machine, a first bevel gear and a second bevel gear are arranged in the gear box and are meshed with each other, the second bevel gear is vertically located on one side of the first bevel gear, a driving shaft which is coaxially connected to the lower end of the corresponding screw rod is fixedly arranged on the central axis of the first bevel gear in a penetrating mode, the output shaft of the direct-current.

Furthermore, cushion pads sleeved at the corresponding ends of the screw rods are fixed at two ends of the inner part of the upper shell. The cushion can avoid the ejector rod from generating hard collision with the part at the end part of the upper shell, thereby being beneficial to protecting the ejector rod and the related parts.

3. Advantageous effects

The utility model discloses all be equipped with the gear box on two screw formula machines of windowing, be connected with the transfer line between two gear boxes, at least one screw formula machine of windowing's screw rod is connected with direct current gear motor, is equipped with a set of driven bevel gear between corresponding screw rod of realization and the transfer line in the gear box. When the window opener is used, the screw rods connected with the direct-current speed reducing motor can be directly driven to rotate through the direct-current speed reducing motor, meanwhile, the screw rods of the other screw rod type window opener can be driven to rotate through the gear box and the transmission rod, the two screw rods are synchronously driven to rotate, so that the corresponding sliding blocks synchronously move along the length direction of the screw rods, the ejector rods are synchronously pushed out or pulled back, when the ejector rods move to the stroke end point, the current of the direct-current speed reducing motor rises, and the window opener is powered off and stopped when the current value rises to a set current value, namely, the synchronous operation of the two screw rod. The product is reasonable in structure and simple to manufacture, ensures synchronous operation of the two window opening machines through the mechanical transmission structure, and can realize stroke change of the window opening machines through change of the length and the installation position of the screw rod assembly. Namely the utility model discloses can solve two synchronization problems between the machine of windowing with mechanical mode, it is stronger than electron synchronization mode reliability, can avoid the machine function of windowing to receive obvious adverse effect because of the electric current is unusual, and be difficult for receiving the interference, can ensure corresponding guard action, application scope is wider.

Drawings

Fig. 1 is a schematic structural view of the present invention in embodiment 1;

FIG. 2 is an enlarged view of the structure of the area A in FIG. 1;

fig. 3 is a schematic structural view of the present invention in embodiment 2.

Reference numerals: 1. a screw assembly; 11. a screw; 12. a top rod; 13. a slider; 2. an aluminum alloy housing; 21. an upper housing; 22. a lower housing; 3. a DC reduction motor; 4. a gear case; 41. a bevel gear I; 42. a bevel gear II; 43. a drive shaft; 5. a transmission rod; 6. a cushion pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The double-screw mechanical synchronous window opener shown in fig. 1 comprises two screw window openers arranged in parallel, wherein each screw window opener comprises a screw assembly 1, an aluminum alloy shell 2 and a direct-current speed-reducing motor 3, each screw assembly 1 comprises a screw 11 and an ejector rod 12 sleeved outside the screw 11, a sliding block 13 in threaded sleeve connection with the screw 11 is fixed at the lower end of the ejector rod 12, and the peripheral side of the sliding block 13 is longitudinally connected with the inner wall of the aluminum alloy shell 2 in a sliding manner; the lower end of the screw component 1 is connected with a gear box 4, the aluminum alloy shell 2 comprises an upper shell 21 connected with the upper end of the gear box 4 and sleeved outside the screw component 1 and a lower shell 22 connected with the lower end of the gear box 4, two ends of the screw 11 are rotatably connected with corresponding end parts of the upper shell 21, a direct current speed reducing motor 3 is arranged in the lower shell 22 of one screw type window opener, as shown in figure 2, a first bevel gear 41 and a second bevel gear 42 which are vertically positioned at one side of the first bevel gear 41 are arranged in the gear box 4 and are mutually meshed, a driving shaft 43 coaxially connected with the lower end of the corresponding screw rod 11 is fixedly arranged on the central axis of the bevel gear I41 in a penetrating way, the output shafts of the direct current speed reducing motors 3 are coaxially connected to the lower ends of the corresponding driving shafts 43, and a transmission rod 5 positioned on the central axis of the bevel gear II 42 is connected between the bevel gear II 42 in the gear boxes 4 of the two screw type window opening machines.

In this embodiment, the buffer pads 6 are fixed to the inner ends of the upper housing 21 and are sleeved on the corresponding ends of the screw rods 11. The cushion 6 prevents the ram 12 from hard collision with the components at the end of the upper housing 21, thereby facilitating protection of the ram 12 and related components.

The double-screw mechanical synchronous window opener can be used for electric windows, fire-fighting smoke exhaust windows and intelligent windows as an electric window opening and closing device. The specific action process is as follows:

when the window needs to be opened, the direct-current reducing motor 3 is started, the driving shaft 43 at the side where the direct-current reducing motor 3 is located drives the side screw 11 to rotate, meanwhile, the side driving shaft 43 drives the side bevel gear I41 to rotate, the driving rod 5 is driven to rotate through the side bevel gear II 42, so that the bevel gear II 42 of the other screw type window opener is driven to rotate, the bevel gear I41 meshed with the side bevel gear II drives the other driving shaft 43 to rotate, so that the other screw 11 is driven to rotate, the two screw rods 11 synchronously rotate, the corresponding sliding blocks 13 synchronously move upwards along the length direction of the screw rods, the ejector rods 12 are synchronously pushed out of the upper shell 21, the front cushion 6 is pressed when the ejector rods 12 extend out to the pre-designed stroke, and the current of the direct-current reducing motor 3 is increased and is powered off and stopped when the current is. When the window needs to be closed, the direct-current speed reducing motor 3 is started reversely, the screw rod 11 is driven to rotate reversely, the ejector rod 12 is retracted, the cushion pad 6 at the rear end is pressed when the ejector rod 12 is completely retracted, the current of the direct-current speed reducing motor 3 is increased, and the window is powered off and stopped when the current value is increased to the set current value. Thereby realizing the synchronous operation of the two screw type window opening machines and controlling the opening and closing of the window sashes. The product is reasonable in structure and simple to manufacture, and the stroke change of the window opener can be realized by changing the length of the screw rod assembly and the change of the installation position.

Example 2

The present embodiment is different from embodiment 1 in that: as shown in fig. 3, the dc reduction motors 3 are provided in the lower housings 22 of the two screw windowing machines. The two direct current speed reducing motors 3 are mutually restricted when working, finally achieve synchronous operation, and are suitable for the situation with larger requirements on the push-pull force of the window opener.

The double-screw mechanical synchronous window opener can be used for electric windows, fire-fighting smoke exhaust windows and intelligent windows as an electric window opening and closing device. The specific action process is as follows:

when the window needs to be opened, the two direct current reducing motors 3 are synchronously started at the same time to drive the two driving shafts 43 to synchronously rotate, meanwhile, the two driving shafts 43 drive the transmission rods 5 to rotate at two ends through the transmission action of the two groups of bevel gears I41 and II 42 respectively, so that the mutual constraint between the two screw type window openers is realized, the two screw rods 11 are synchronously driven to rotate, the corresponding sliding blocks 13 synchronously move upwards along the length direction of the screw rods 11 to synchronously push the ejector rods 12 out of the upper shell 21, the front buffer cushions 6 are pressed when the ejector rods 12 extend out to the pre-designed stroke, the current of the direct current reducing motors 3 rises due to resistance, and the direct current reducing motors 3 are powered off and shut down when the current rises to the set current value (because overload protection is added in the circuit), so that. When needing to close the window, reverse start direct current gear motor 3 drives screw rod 11 antiport, withdraws ejector pin 12, compresses tightly the blotter 6 of rear end when ejector pin 12 withdraws completely, and direct current gear motor 3's electric current risees because of meetting the resistance, and the outage is shut down when rising to setting for the current value. Thereby realizing the synchronous operation of the two screw type window opening machines and controlling the opening and closing of the window sashes. The product is reasonable in structure and simple to manufacture, and the stroke change of the window opener can be realized by changing the length of the screw rod assembly and the change of the installation position.

According to the above, the utility model discloses can solve the synchronization problem between the two machines of windowing with mechanical mode, it is stronger than electron synchronization mode reliability, can avoid the machine of windowing function to receive obvious adverse effect because of the electric current is unusual, and be difficult for receiving the interference, can ensure corresponding guard action, application scope is wider.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (2)

1. A double-screw mechanical synchronous window opener comprises two screw window openers arranged in parallel, wherein each screw window opener comprises a screw assembly (1), an aluminum alloy shell (2) and a direct-current speed reduction motor (3), each screw assembly (1) comprises a screw (11) and an ejector rod (12) sleeved outside the screw (11), a sliding block (13) in threaded sleeve connection with the screw (11) is fixed at the lower end of the ejector rod (12), and the peripheral side of the sliding block (13) is longitudinally connected with the inner wall of the aluminum alloy shell (2) in a sliding manner; the screw rod assembly is characterized in that the lower end of the screw rod assembly (1) is connected with a gear box (4), the aluminum alloy shell (2) comprises an upper shell (21) connected to the upper end of the gear box (4) and sleeved outside the screw rod assembly (1) and a lower shell (22) connected to the lower end of the gear box (4), two ends of the screw rod (11) are rotatably connected with corresponding end parts of the upper shell (21), a direct-current reducing motor (3) is arranged in the lower shell (22) of at least one screw rod type window opening machine, a first bevel gear (41) and a second bevel gear (42) are arranged in the gear box (4) and are meshed with each other, the first bevel gear (41) and the second bevel gear (42) are vertically positioned on one side of the first bevel gear (41), a driving shaft (43) coaxially connected to the lower end of the corresponding screw rod (11) is fixedly arranged on a central axis of the first bevel, a transmission rod (5) positioned on the central axis of the second bevel gear (42) is connected between the second bevel gear (42) in the gear boxes (4) of the two screw type window openers.

2. The double-screw mechanical synchronous window opener according to claim 1, characterized in that two ends of the interior of the upper shell (21) are respectively fixed with a cushion pad (6) sleeved on the corresponding end of the screw (11).

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