CN201250600Y

CN201250600Y - Safe driving mechanism for roll-up door

Info

Publication number: CN201250600Y
Application number: CNU200820189193XU
Authority: CN
Inventors: 刘维宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-27
Filing date: 2008-08-27
Publication date: 2009-06-03
Anticipated expiration: 2018-08-27

Abstract

The invention relates to a safe driving mechanism for a roll-up door, which comprises a motherboard and a sprocket transmission component arranged on the motherboard, and is characterized in that the sprocket transmission component comprises at least two drive sprockets connected with a motor output shaft, at least two driven sprockets arranged on the motherboard by a wheel axle in a closed assembly way, and at least a pair of chains or at least two single chains connected with the two drive sprockets and the two driven sprockets. As the utility model uses the sprocket transmission component which is comprised of at least two drive sprockets, at least two driven sprockets arranged on the motherboard by the wheel axle in a closed assembly way, at least a pair of chains or at least two single chains connected with the two drive sprockets and the two driven sprockets, and the like, the bearing capability of the chains on unit area is effectively reduced in the transmission course in the process of the driving mechanism to be used, thus correspondingly prolonging the service life and improving use security of the utility model. The driving mechanism can be widely applied to various roll-up doors.

Description

A kind of rolling door transmission device safe in utilization

Technical field

The utility model relates to a kind of transmission device, particularly a kind of rolling door transmission device safe in utilization.

Background technology

The transmission device that existing rolling door is used is mostly formed chain-drive mechanism by base plate and the strand bar that is installed on a hinge wheel (driven sprocket), the minor sprocket (drive sprocket) that is connected with motor output shaft on the base plate and connects described minor sprocket and hinge wheel, this transmission device is owing to be to adopt strand bar structure, so in use the holding capacity of chain is big, easily chain rupture taking place and makes the rolling door incident such as hurt sb.'s feelings that drops out of control, therefore there is potential safety hazard in it, structure is unreliable, and application life is short, is difficult to satisfy consumers in general's requirement.In chain-drive mechanism, install safety device although also there are some producers to adopt, as the patent No. is the sprocket-type rolling-gate machine of the disclosed a kind of integrated band safety device of Chinese patent of zL01215555, it adopts and installs on the base plate of the chain inboard of existing transmission device by left brake block, right brake block, bearing pin, the safety device that roller and torsion spring etc. are formed, therefore in use when driving chain ruptures suddenly, can make sprocket wheel stop operating by this safety device, to reach the purpose that prevents that rolling door from dropping and hurting sb.'s feelings, but same exists chain easily broken, the problem that application life is short, and its complex structure, install loaded down with trivial details, the cost of production height is so also be difficult to be accepted by consumers in general.

Summary of the invention

The purpose of this utility model is to provide a kind of both safe in utilization, long service life at above-mentioned existing problems and deficiency, and simple in structure, reliable, process and install easy rolling door transmission device.

The technical solution of the utility model is achieved in that

Rolling door transmission device safe in utilization described in the utility model, comprise base plate and be installed on chain gear transmission assembly on the described base plate, be characterized in described chain gear transmission assembly comprise at least two drive sprockets that can be connected with motor output shaft, by the wheel shaft closed assembly on described base plate at least two driven sprockets and connect at least one double-stranded bar or at least two strand bars of described drive sprocket and driven sprocket.

Guaranteeing effectively to reduce its cost of production again on its reliable in structure, the basis safe in utilization for making the utility model, above-mentioned chain gear transmission assembly is double-stranded wheel drive mechanism, this two strands wheel drive mechanism comprises little double-stranded wheel, closed assembly two driven sprockets on above-mentioned base plate wheel shaft and the two strand bars that connect respectively on corresponding driven sprocket and the drive sprocket and can be synchronized with the movement with drive sprocket, and wherein said little double-stranded wheel is served as reasons and can be cooperated axle sleeve and the formation of two drive sprockets on one-body molded this axle sleeve that is nested with motor output shaft.And be further to strengthen the utility model reliability of structure, device has the collar of the spacing shoulder of two ends band on the wheel shaft between above-mentioned two driven sprockets, and above-mentioned two driven sprockets are connected on the spacing shoulder at described collar two ends.

The utility model is owing to adopt by at least two drive sprockets, by the wheel shaft closed assembly on described base plate at least two driven sprockets and connect at least one double-stranded bar of described drive sprocket and driven sprocket or the structure of the chain gear transmission assembly that at least two strand bars etc. are formed, be about to original strand bar drive mechanism and change double-stranded bar or multichain bar drive mechanism into, make the utility model in the process of using, reduced chain ability to bear on its unit area in transmission process effectively, thereby correspondingly prolonged its application life and the safety that has improved its use, solved existing chain gear transmission assembly effectively and had potential safety hazard, problems such as application life is short.And because the double-stranded wheel drive mechanism that the two strand bars that the little double-stranded wheel that the utility model is formed by two drive sprockets on axle sleeve and one-body molded this axle sleeve, closed assembly two driven sprockets and connect respectively on corresponding driven sprocket and the drive sprocket also on above-mentioned base plate wheel shaft can be synchronized with the movement with drive sprocket etc. are formed, make the utility model guarantee to reduce its cost of production again effectively on its reliable in structure, the basis safe in utilization.The utility model is simple in structure, reliable, safe in utilization, long service life, can be widely used on the various rolling doors.

Below in conjunction with accompanying drawing the utility model is further described.

Description of drawings

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is the main TV structure schematic diagram of Fig. 1;

Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2;

Fig. 4 is the B-B sectional structure schematic diagram of Fig. 2.

The specific embodiment

As Fig. 1-shown in Figure 4, rolling door transmission device safe in utilization described in the utility model, comprise base plate 1 and be installed on chain gear transmission assembly 2 on the described base plate 1, for making the utility model safe in utilization, described chain gear transmission assembly 2 comprises at least two drive sprockets 21 that can be connected with motor output shaft 3, by wheel shaft 4 closed assemblies on described base plate 1 at least two driven sprockets 22 and connect at least one double-stranded bar or at least two strand bars 23 of described drive sprocket 21 and driven sprocket 22, be about to original strand bar drive mechanism and change double-stranded bar or multichain bar drive mechanism into, make the utility model in the process of using, reduced chain ability to bear on its unit area in transmission process effectively, thereby correspondingly prolonged its application life and the safety that has improved its use, solved existing chain gear transmission assembly effectively and had potential safety hazard, problems such as application life is short.Guaranteeing effectively to reduce its cost of production again on its reliable in structure, the basis safe in utilization for making the utility model, guaranteeing effectively to reduce its cost of production again on its reliable in structure, the basis safe in utilization for making the utility model, the double-stranded wheel drive mechanism of chain gear transmission assembly 2 general employings in the utility model, wherein, described double-stranded wheel drive mechanism can adopt the two strands wheel drive mechanism of national standard; In order effectively to reduce its difficulty of processing, with its cost of production of further reduction, the preferred version of the utility model double center chain wheel drive mechanism is to comprise by cooperating little double-stranded wheel that the axle sleeve 24 that is nested with and two drive sprockets 21 on one-body molded this axle sleeve 24 form, closed assembly in two driven sprockets 22 on the above-mentioned wheel shaft 4 and the two strand bars 23 that are connected respectively on corresponding driven sprocket 22 and the drive sprocket 21 and can be synchronized with the movement with drive sprocket 21 works with motor output shaft 3.Wherein, on the above-mentioned base plate 1 device have can with the axle bed 5 of motor output shaft 3 sockets, above-mentioned little double-stranded wheel apparatus is nested with and reliably is connected on the above-mentioned base plate 1 with cooperating of described axle bed 5 on described axle bed 5 and by motor output shaft 3 ends that are placed through in its axle sleeve 24.The inwall of above-mentioned axle sleeve 24 be provided with can with the corresponding keyway that embeds with the donating bond bar of keyway on the motor output shaft 3.As shown in Figure 3, for further strengthening the utility model reliability of structure, device has the collar 6 of the spacing shoulder of two ends band on the wheel shaft 4 between above-mentioned two driven sprockets 22, and above-mentioned two driven sprockets 22 are connected on the spacing shoulder at the described collar 6 two ends.One end of above-mentioned wheel shaft 4 is installed on the above-mentioned base plate 1, be set with on its other end and be pressed on foundary weight 7 on the above-mentioned driven sprocket 22 and that can rotate with driven sprocket 22, and the junction of the both ends of above-mentioned wheel shaft 4 and described foundary weight 7 and driven sprocket 22 is respectively equipped with bearing 8, and the end of above-mentioned wheel shaft 4 correspondingly is provided with and is used for lock screw 9 and the pad 10 of foundary weight 7 inner bearings 8 positive locks on wheel shaft 4.Above-mentioned foundary weight 7 and rolling door door-hinge link together during use, and above-mentioned driven sprocket 22 drives above-mentioned foundary weight 7 when rotating with little double-stranded wheel under the transmission of chain 23 and door-hinge rotates.The utility model is simple in structure, reliable, safe in utilization, long service life, can be widely used on the various rolling doors.

Claims

1, a kind of rolling door transmission device safe in utilization, comprise base plate (1) and be installed on chain gear transmission assembly (2) on the described base plate (1), it is characterized in that described chain gear transmission assembly (2) comprise at least two drive sprockets (21) that can be connected with motor output shaft (3), by wheel shaft (4) closed assembly on described base plate (1) at least two driven sprockets (22) and connect described drive sprocket (21) and at least one double-stranded bar of driven sprocket (22) or at least two strand bars (23).

2, rolling door transmission device safe in utilization according to claim 1, it is characterized in that above-mentioned chain gear transmission assembly (2) is double-stranded wheel drive mechanism, this two strands wheel drive mechanism comprises little double-stranded wheel, closed assembly on above-mentioned wheel shaft (4) two driven sprockets (22) and connect corresponding driven sprocket (22) respectively and drive sprocket (21) is gone up and can make the two strand bars (23) that are synchronized with the movement with drive sprocket (21), wherein said little double-stranded wheel is served as reasons and can be cooperated axle sleeve (24) and the formation of two drive sprockets (21) on one-body molded this axle sleeve (24) that is nested with motor output shaft (3).

3, rolling door transmission device safe in utilization according to claim 2, it is characterized in that above-mentioned base plate (1) go up device have can with the axle bed (5) of motor output shaft (3) socket, above-mentioned little double-stranded wheel apparatus is gone up and is nested with and reliably is connected on the above-mentioned base plate (1) with cooperating of described axle bed (5) by motor output shaft (3) end that is placed through in its axle sleeve (24) in described axle bed (5).

4, rolling door transmission device safe in utilization according to claim 2 is characterized in that the inwall of above-mentioned axle sleeve (24) is provided with keyway.

5, according to claim 2 or 3 described rolling door transmission devices safe in utilization, it is characterized in that the wheel shaft (4) between above-mentioned two driven sprockets (22) goes up the collar (6) that device has the spacing shoulder of two ends band, above-mentioned two driven sprockets (22) are connected on the spacing shoulder at the described collar (6) two ends.

6, rolling door transmission device safe in utilization according to claim 1 and 2, an end that it is characterized in that above-mentioned wheel shaft (4) is installed on the above-mentioned base plate (1), be set with on its other end and be pressed on foundary weight (7) on the above-mentioned driven sprocket (22) and that can drive the rotation of rolling door door-hinge with driven sprocket (22) rotation, and the junction of the both ends of above-mentioned wheel shaft (4) and described foundary weight (7) and driven sprocket (22) is respectively equipped with bearing (8), and the end of above-mentioned wheel shaft (4) correspondingly is provided with and is used for lock screw (9) and the pad (10) of foundary weight (7) inner bearing (8) positive lock on wheel shaft (4).