Counterweight door

Abstract

The present invention relates to the technical field of rolling shutter doors, in particular to a counterweight door, which includes a main door frame installed at the opening position of a door opening. In the side guide groove of the main door frame of the counterweight door of the present invention, a first transmission chain and a second transmission chain for drivingly connecting a top power mechanism and a bottom counterweight plate are installed. A tension side and a compression side for adjusting balance are fixedly connected to the second transmission chain. The balance of the transmission mechanism is automatically adjusted through the elastic reset ability of a spring, thereby reducing the power consumption of the power mechanism and making it more energy-efficient. A horizontal rolling shutter housing with a built-in horizontal drive motor and a horizontal synchronous rotating shaft and a side transmission box with a built-in speed regulation gear transmission group are fixedly installed at the top of the main door frame by bolts, greatly improving the transmission efficiency of the entire device. With a hidden layout, the safety and stability are better. By using a transmission chain instead of a traditional cloth belt transmission, the safety and durability of the transmission mechanism are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rolling shutter doors, and in particular to a counterweight door. Background Art

[0002] Rolling shutter counterweight doors are mainly applicable to partition uses in places such as workshops, shopping malls, office buildings, exhibition halls, and home decoration. They can effectively play roles such as heat insulation, dust prevention, noise reduction and sound insulation, and shielding. At present, the counterweight doors on the market have a simple structure, and most of the transmission methods are through belt transmission. The service life of the transmission mechanism is limited and the stability is poor. At the same time, the force balance is adjusted by pressing a square, and the adjustment method is fixed, single and limited. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve the problems existing in the above background art, to provide an improved counterweight door, and to solve the problems that the counterweight doors on the market at present have a simple structure, most of the transmission methods are through belt transmission, the service life of the transmission mechanism is limited, the stability is poor, and at the same time, the force balance is adjusted by pressing a square, and the adjustment method is fixed, single and limited.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a counterweight door, including a main door frame installed at the opening position of the door opening, a horizontally placed rolling shutter cover box bolted to the upper end of the main door frame, a horizontally placed synchronous rotating shaft movably installed inside the horizontally placed rolling shutter cover box, side transmission boxes bolted and installed on both sides of the horizontally placed rolling shutter cover box, and a horizontally placed driving motor installed inside the horizontally placed rolling shutter cover box. Side guide grooves with built-in longitudinal guide rails are opened on the inner walls of both sides of the main door frame. A bottom counterweight plate for connecting the rolling shutter door panel is arranged inside the main door frame. A first bottom transmission wheel and a second bottom transmission wheel are movably assembled on the inner bottom surface of the side guide groove through a bottom mounting frame. A first top transmission wheel matched with the first bottom transmission wheel and a second top transmission wheel matched with the second bottom transmission wheel are movably installed inside the side transmission box. A first transmission chain is sleeved between the first bottom transmission wheel and the first top transmission wheel. A second transmission chain is sleeved between the second bottom transmission wheel and the second top transmission wheel. An elastic tension square and a pressure square are installed on the second transmission chain. A speed regulation gear transmission group is installed inside the side transmission box.

[0005] Furthermore, in order to facilitate installation, the inner bottom surface of the side guide groove is located at the outside of the second bottom transmission wheel and is fixedly installed with a fixed lifting base by bolts. The upper end of the fixed lifting base is bolted with a bottom spring fixing seat with a spring on the outside. The pressing square is sleeved on the outside of the second transmission chain. A central through hole and side chain holes are opened inside the pressing square. The upper end of the pressing square is fixedly installed with a top fixing plate by bolts. The upper end of the top fixing plate is fixedly connected to the second transmission chain through a top fixed bracket. The lower surface of the top fixing plate is located in the central through hole and is fixedly installed with a top spring fixing seat by bolts. The upper end of the spring is inserted into the central through hole and is fixedly sleeved on the outer side of the top spring fixing seat.

[0006] Furthermore, in order to coordinate transmission and speed regulation, the speed regulating gear transmission group includes a main transmission gear fixedly connected to the lateral rotating shaft of the transverse driving motor, and a speed regulating gear movably assembled inside the lateral transmission box through the transverse rotating shaft. The two ends of the transverse synchronous rotating shaft are located inside the lateral transmission box and are axially fixedly connected with a first driven gear matching the main transmission gear and a second driven gear matching the speed regulating gear. The main transmission gear and the first driven gear are connected by a first overhead transmission chain, and the speed regulating gear and the second driven gear are connected by a second overhead transmission chain.

[0007] Furthermore, in order to coordinate the speed regulation, the gear ratio between the speed regulating gear and the second driven gear is 10:1.

[0008] Furthermore, in order to cooperate with the limit and reduce friction, the two ends of the bottom counterweight plate are fixedly installed with side guide limit wheels through lateral brackets, and the bottom counterweight plate is inserted into the longitudinal guide rail through the side guide limit wheels and is movably connected to the longitudinal guide rail.

[0009] Furthermore, in order to facilitate installation and fixation, both ends of the bottom counterweight plate are fixedly connected to the first transmission chain through lateral linkage brackets.

[0010] Furthermore, in order to facilitate top rolling, the outer side surface of the lateral transmission box is located inside the horizontal rolling shutter cover box and is fixed with a spiral mechanism top rolling shutter storage groove connected to the inside of the longitudinal guide rail by bolts.

[0011] The beneficial effects of the present invention are:

[0012] (1) The counterweight door of the present invention is provided with a first transmission chain and a second transmission chain for transmission connection between the top power mechanism and the bottom counterweight plate inside the side guide groove of the main door frame, and a pulling side and a pressing side for adjusting the balance are fixedly connected to the second transmission chain. The balance of the transmission mechanism is automatically adjusted through the elastic reset ability of the spring, thereby reducing the power consumption of the power mechanism and making it more energy-efficient;

[0013] (2) At the top of the main door frame, a horizontal rolling shutter cover box with a built-in horizontal drive motor and a horizontal synchronous rotating shaft, and a lateral transmission box with a built-in speed regulation gear transmission group are fixedly installed by bolts, which greatly improves the transmission efficiency of the entire device. The hidden layout is adopted, and the safety and stability are better.

[0014] (3) The traditional cloth belt transmission is replaced by a transmission chain, which greatly improves the safety and durability of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 It is a schematic structural diagram of the present invention.

[0017] Figure 2 It is the front view of the present invention.

[0018] Figure 3 It is the cross-sectional view of the elastic tension square in the present invention.

[0019] Figure 4 It is the schematic structural diagram of the transmission balance mechanism in the present invention.

[0020] In the figure: 1. Main door frame, 2. Horizontal rolling shutter cover box, 3. Horizontal synchronous rotating shaft, 4. Lateral transmission box, 5. Horizontal drive motor, 6. Longitudinal guide rail, 7. Side guide groove, 8. Bottom counterweight plate, 9. Bottom mounting frame, 10. First bottom drive wheel, 11. Second bottom drive wheel, 12. First top drive wheel, 13. Second top drive wheel, 14. First transmission chain, 15. Second transmission chain, 16. Pressing square, 17. Fixed lifting base, 18. Spring, 19. Bottom spring fixing seat, 20. Middle through hole, 21. Side chain passing hole, 22. Top fixing plate, 23. Top fixing bracket, 24. Top spring fixing seat, 25. Main transmission gear, 26. Speed regulation gear, 27. First driven gear, 28. Second driven gear, 29. First top transmission chain, 30. Second top transmission chain, 31. Lateral bracket, 32. Side guide limiting wheel, 33. Lateral linkage bracket, 34. Top rolling shutter storage groove. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0022] Figure 1 and Figure 2The counterweight door shown includes a main door frame 1 installed at the opening position of the door opening, a horizontally placed rolling curtain cover box 2 bolted to the upper end of the main door frame 1, a horizontally placed synchronous rotating shaft 3 movably installed inside the horizontally placed rolling curtain cover box 2, lateral transmission boxes 4 bolted and installed on both sides of the horizontally placed rolling curtain cover box 2, and a horizontally placed driving motor 5 installed inside the horizontally placed rolling curtain cover box 2. Side guide grooves 7 with built-in longitudinal guide rails 6 are provided on the inner walls on both sides of the main door frame 1. A bottom counterweight plate 8 for connecting the rolling curtain door panel is arranged inside the main door frame 1. A first bottom transmission wheel 10 and a second bottom transmission wheel 11 are movably assembled on the inner bottom surface of the side guide groove 7 through a bottom mounting bracket 9. A first top transmission wheel 12 that cooperates with the first bottom transmission wheel 10 and a second top transmission wheel 13 that cooperates with the second bottom transmission wheel 11 are movably installed inside the lateral transmission box 4. A first transmission chain 14 is sleeved between the first bottom transmission wheel 10 and the first top transmission wheel 12. A second transmission chain 15 is sleeved between the second bottom transmission wheel 11 and the second top transmission wheel 13. An elastic tension side and a compression side 16 are installed on the second transmission chain 15. A speed regulation gear transmission group is installed inside the lateral transmission box 4.

[0023] Embodiment: The horizontally placed driving motor 5 drives the speed regulation gear transmission group to operate, synchronously driving the first top transmission wheel 12 and the second top transmission wheel 13 to rotate. The first top transmission wheel 12 and the second top transmission wheel 13 drive the first transmission chain 14 and the second transmission chain 15 to run. Due to the effect of the speed regulation gear transmission group, the moving length of the first transmission chain 14 is 10 times that of the second transmission chain 15, and there is a speed difference.

[0024] As Figure 3 shown, for the sake of fitting installation, a fixed lifting base 17 is bolted and installed on the inner bottom surface of the side guide groove 7 outside the second bottom transmission wheel 11. A bottom spring fixing seat 19 with a spring 18 sleeved outside is bolted to the upper end of the fixed lifting base 17. The compression side 16 is sleeved outside the second transmission chain 15. A central through hole 20 and a side chain through hole 21 are provided inside the compression side 16. A top fixing plate 22 is bolted and installed at the upper end of the compression side 16. The upper end of the top fixing plate 22 is fixedly connected to the second transmission chain 15 through a top fixing bracket 23. A top spring fixing seat 24 is bolted and installed on the lower surface of the top fixing plate 22 inside the central through hole 20. The upper end of the spring 18 is inserted into the central through hole 20 and sleeved and fixed to the outer side surface of the top spring fixing seat 24.

[0025] Embodiment: A fixed lifting base 17, a spring 18, a bottom spring fixing seat 19 and a top spring fixing seat 24 together form an elastic pulling square, and the pressing square and the pulling square are installed together by bolts. When the baffle pressing square 16 descends, the spring 18 supports the pressing square 16 upward, thereby reducing the downward pulling force, thereby balancing the pulling force difference between the first and second transmission chains, thereby ensuring the transmission balance; conversely, when the pressing square 16 rises, the upward pulling force formed by the spring 18 is used to increase the downward pulling force.

[0026] like Figure 4 As shown, in order to coordinate transmission and speed regulation, the speed regulating gear transmission group includes a main transmission gear 25 fixedly connected to the lateral rotating shaft of the transverse driving motor 5, and a speed regulating gear 26 movably assembled in the lateral transmission box 4 through the transverse rotating shaft. Both ends of the transverse synchronous rotating shaft 3 are located in the lateral transmission box 4 and are axially fixedly connected with a first driven gear 27 matched with the main transmission gear 25 and a second driven gear 28 matched with the speed regulating gear 26. The main transmission gear 25 and the first driven gear 27 are connected by a first overhead transmission chain 29, and the speed regulating gear 26 and the second driven gear 28 are connected by a second overhead transmission chain 30.

[0027] Furthermore, in order to cooperate with the speed regulation, the gear ratio of the speed regulating gear 26 and the second driven gear 28 is 10:1. Furthermore, in order to cooperate with the limit and reduce the friction, the two ends of the bottom counterweight plate 8 are fixedly installed with side guide limit wheels 32 through lateral brackets 31, and the bottom counterweight plate 8 is inserted into the longitudinal guide rail 6 through the side guide limit wheels 32 and is movably connected to the longitudinal guide rail 6.

[0028] Furthermore, in order to facilitate installation and fixation, the two ends of the bottom counterweight plate 8 are fixedly connected to the first transmission chain 14 through lateral linkage brackets 33. Furthermore, in order to facilitate top winding, the outer side surface of the lateral transmission box 4 is located inside the horizontal rolling shutter cover box 2 and is fixed with a spiral mechanism top rolling shutter storage groove 34 that is connected to the interior of the longitudinal guide rail 6 by bolts.

[0029] The beneficial effects of the present invention are:

[0030] (1) The counterweight door of the present invention is provided with a first transmission chain 14 and a second transmission chain 15 for transmission connection between the top power mechanism and the bottom counterweight plate 8 inside the side guide groove 7 of the main door frame 1. A puller and a presser 16 for adjusting the balance are fixedly connected to the second transmission chain 15. The balance of the transmission mechanism is automatically adjusted by the elastic reset ability of the spring 18, thereby reducing the power consumption of the power mechanism and making it more energy-efficient.

[0031] (2) At the top of the main door frame 1, a horizontal rolling shutter cover box 2 with a built-in horizontal drive motor 5 and a horizontal synchronous rotating shaft 3 and a lateral transmission box 4 with a built-in speed regulation gear transmission group are fixedly installed by bolts, greatly improving the transmission efficiency of the whole device. With a hidden layout, the safety and stability are better.

[0032] (3) By using a transmission chain instead of the traditional cloth belt transmission, the safety and durability of the transmission mechanism are greatly improved.

[0033] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A counterweight door, comprising a main doorframe (1) installed at the opening position of the door opening, a horizontally placed rolling curtain cover box (2) bolted to the upper end of the main doorframe (1), a horizontally placed synchronous rotating shaft (3) movably installed inside the horizontally placed rolling curtain cover box (2), lateral transmission boxes (4) bolted and installed on both sides of the horizontally placed rolling curtain cover box (2), and a horizontally placed driving motor (5) installed inside the horizontally placed rolling curtain cover box (2), characterized in that: The inner walls on both sides of the main door frame (1) are provided with side guide grooves (7) with built-in longitudinal guide rails (6); the main door frame (1) is provided with a bottom counterweight plate (8) for connecting the rolling door panel; the inner bottom surface of the side guide groove (7) is movably equipped with a first bottom transmission wheel (10) and a second bottom transmission wheel (11) through a bottom mounting frame (9); the lateral transmission box (4) is movably equipped with a first top transmission wheel (12) matched with the first bottom transmission wheel (10) and a second top transmission wheel (13) matched with the second bottom transmission wheel (11); a first transmission chain (14) is sleeved between the first bottom transmission wheel (10) and the first top transmission wheel (12); a second transmission chain (15) is sleeved between the second bottom transmission wheel (11) and the second top transmission wheel (13); an elastic puller and a pressurer (16) are installed on the second transmission chain (15); and a speed regulating gear transmission group is installed inside the lateral transmission box (4); The inner bottom surface of the side guide groove (7) is located on the outside of the second bottom transmission wheel (11) and is fixedly installed with a fixed lifting base (17) by bolts. The upper end of the fixed lifting base (17) is bolted with a bottom spring fixing seat (19) with a spring (18) on the outside. The pressing square (16) is sleeved on the outside of the second transmission chain (15). The pressing square (16) is provided with a central through hole (20) and a side chain hole (21). The upper end of the pressing square (16) is fixedly installed with a top fixing plate (22) by bolts. The upper end of the top fixing plate (22) is fixedly connected to the second transmission chain (15) through a top fixing bracket (23). The lower surface of the top fixing plate (22) is located inside the central through hole (20) and is fixedly installed with a top spring fixing seat (24) by bolts. The upper end of the spring (18) is inserted into the central through hole (20) and is sleeved and fixed to the outer side of the top spring fixing seat (24). The speed regulating gear transmission group comprises a main transmission gear (25) fixedly connected to the lateral rotating shaft of the transverse driving motor (5), and a speed regulating gear (26) movably assembled in the lateral transmission box (4) through the transverse rotating shaft. The two ends of the transverse synchronous rotating shaft (3) are located in the lateral transmission box (4) and are axially fixedly connected with a first driven gear (27) matched with the main transmission gear (25) and a second driven gear (28) matched with the speed regulating gear (26). The main transmission gear (25) and the first driven gear (27) are connected to each other through a first overhead transmission chain (29), and the speed regulating gear (26) and the second driven gear (28) are connected to each other through a second overhead transmission chain (30).

2. The counterweight door according to claim 1, characterized in that: The gear ratio between the speed regulating gear (26) and the second driven gear (28) is 10:

1.

3. The counterweight door according to claim 1, wherein: Both ends of the described bottom counterweight plate (8) are fixedly installed with side guiding and limiting wheels (32) through side brackets (31), and the bottom counterweight plate (8) is inserted into the longitudinal guide rail (6) through the side guiding and limiting wheels (32) and is movably connected to the longitudinal guide rail (6).

4. The counterweight door according to claim 1, characterized in that: Both ends of the described bottom counterweight plate (8) are fixedly connected to the first drive chain (14) through side linkage brackets (33).

5. The counterweight door according to claim 1, characterized in that: On the outer side of the described side transmission box (4) and inside the horizontal rolling curtain cover box (2), a spiral mechanism top rolling curtain storage groove (34) communicating with the inside of the longitudinal guide rail (6) is fixedly installed through bolts.

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