Transmission device for roller shutter door motor

Abstract

The utility model discloses a transmission device for a roller shutter door motor, and relates to the technical field of roller shutter door motors. A first sprocket; a second sprocket; the chain is sleeved between the first chain wheel and the second chain wheel; a tensioning mechanism is mounted on the base and is used for adjusting the tensioning degree of the chain, and the tensioning mechanism comprises an oscillating bar, an oscillating bar and a tensioning mechanism, the pressing roller is mounted on the swing rod and abuts against the outer ring of the chain; the pressing wheel is arranged on the oscillating bar at an interval relative to the pressing roller; and the screw rod assembly is arranged on the base, and the screw rod assembly abuts against the abutting wheel. According to the tensioning mechanism, the tensioning degree of the chain can be flexibly and controllably adjusted.

Description

Technical Field

[0001] This application relates to the field of roller shutter door motor technology, and specifically to a transmission device for roller shutter door motors. Background Technology

[0002] Roller shutters typically contain a transmission mechanism, which includes a chain tensioning mechanism. However, existing chain tensioning mechanisms often achieve chain tensioning by adding an additional top pulley to the chain. The inventor's research revealed that existing chain tensioning mechanisms cannot flexibly adjust the chain tension, which is detrimental to the chain's use and can severely shorten its lifespan in the long run. Therefore, improvements to the existing chain tensioning mechanisms are necessary. Utility Model Content

[0003] In view of this, this application provides a transmission device for a roller shutter door motor, which, by controlling the tensioning mechanism, can flexibly and controllably adjust the tension of the chain and effectively adjust the tension of the chain to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A transmission device for a roller shutter door motor, comprising:

[0006] A base;

[0007] First sprocket;

[0008] First, the second sprocket;

[0009] A chain, which is fitted between the first sprocket and the second sprocket;

[0010] The base is equipped with a tensioning mechanism, which is used to adjust the tension of the chain. The tensioning mechanism includes:

[0011] A pendulum rod pivotally connected to the base;

[0012] A pressure roller is mounted on the swing arm and presses against the outer ring of the chain;

[0013] A pair of pressure rollers are installed at intervals on the swing arm;

[0014] A screw assembly is mounted on a base and abuts against a pressure wheel.

[0015] Furthermore, the tensioning mechanism also includes a pair of guide components, which are disposed on both sides of the screw assembly.

[0016] Furthermore, the screw assembly includes:

[0017] A screw, which is threadedly connected to the mounting base on the base;

[0018] A handwheel, which is connected to one end of the screw;

[0019] One pressure head is fixedly connected to the other end of the screw;

[0020] A push plate is formed, which abuts against the pressure head and can support the pressure roller.

[0021] A locking nut is threadedly connected to the screw rod and can rest against the mounting base.

[0022] Furthermore, the guiding components include:

[0023] A guide seat, which is mounted on the base;

[0024] A guide rod is fixedly connected to the side of the push plate away from the pressure wheel, and the guide rod is slidably connected to the guide seat.

[0025] Furthermore, a box is installed on the base.

[0026] Furthermore, a dust removal mechanism is installed inside the housing cavity, and the dust removal mechanism includes:

[0027] A first brush cylinder is installed inside the receiving cavity and located at the upper end of the chain inside the receiving cavity;

[0028] A second brush cylinder is located directly below the first brush cylinder and at the lower end of the chain within the receiving cavity.

[0029] Furthermore, a first cleaning brush is fitted around the outer periphery of the first brush cylinder, and a second cleaning brush is fitted around the outer periphery of the second brush cylinder, with the bristles of both the first and second cleaning brushes abutting against the chain.

[0030] Furthermore, a recycling bin is provided at the bottom of the receiving cavity, and a feed hole is provided at the top of the recycling bin.

[0031] As can be seen from the above technical solution, the advantages of this utility model are:

[0032] 1. The tensioning mechanism provided in this application drives the push plate by rotating the screw, so that the push plate abuts against the pressure roller, causing the pressure roller to drive the swing arm to rotate around the hinge axis, thereby causing the pressure roller to tension the chain. Therefore, by operating the tensioning mechanism, it is easy to adjust the tension and slack of the chain.

[0033] 2. The dust removal mechanism provided in this application uses cleaning brushes equipped on the first and second brush cylinders to thoroughly clean the upper and lower sides of the chain, thus effectively extending the service life of the chain. Attached Figure Description

[0034] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0035] Figure 1 This is a schematic diagram of the structure of this application.

[0036] Figure 2 This is a schematic diagram of the tensioning mechanism of this application.

[0037] Figure 3 This is a partial structural diagram of the tensioning mechanism of this application.

[0038] Figure 4 This is a diagram showing the fit between the chain and the housing in this application.

[0039] Figure 5 This is a schematic diagram of the dust removal mechanism of this application.

[0040] Figure 6 This is a side view of the housing of this application.

[0041] Explanation of reference numerals in the attached drawings: Base-1, Roller shutter motor-2, Chain-3, Rotating shaft-4, First sprocket-5, Tensioning mechanism-6, Swing rod-61, Hinge shaft-611, Protrusion-612, Tension spring-613, Pressure roller-62, Connecting plate-63, Pressure roller-64, Push plate-65, Guide rod-66, Guide seat-67, Screw-68, Handwheel-681, Pressure head-682, Locking nut-683, Mounting seat-69, Box-7, Through groove-71, Receiving cavity-72, Side door-73, Second sprocket-8, Dust removal mechanism-9, First brush cylinder-91, First cleaning brush-92, Second brush cylinder-93, Second cleaning brush-94, Recycling box-95, Feed inlet-951. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain this application, but are not intended to limit it.

[0043] refer to Figures 1 to 6 ,like Figure 1As shown, this embodiment provides a transmission device for a roller shutter door motor, including a base 1, a chain 3, a rotating shaft 4, a first sprocket 5, and a second sprocket 8. The rotating shaft 4 is mounted on the base 1, and the first sprocket 5 is sleeved on the rotating shaft 4. A roller shutter door motor 2 is mounted on one side of the base 1. The second sprocket 8 is connected to the output end of the gearbox of the roller shutter door motor 2. The two ends of the chain 3 are respectively sleeved on the outer periphery of the first sprocket 5 and the second sprocket 8, and respectively mesh with the sprocket teeth on the first sprocket 5 and the second sprocket 8 for transmission. A tensioning mechanism 6 is mounted on the base 1. The tensioning mechanism 6 is used to flexibly and controllably adjust the tension of the chain 3, and can effectively adjust the tension of the chain 3.

[0044] like Figure 2 and Figure 3 As shown, specifically, the tensioning mechanism 6 includes a rocker arm 61, a pressure roller 62, a pressure wheel 64, a pair of guide components, and a screw assembly. The rocker arm 61 is hinged to a hinge shaft 611 mounted on the base 1. The pressure roller 62 is connected to a protrusion 612 of the rocker arm 61 and can press against the chain 3. The pressure wheel 64 is connected to a connecting plate 63 on the protrusion 612. The mounting base 69 of the screw assembly is fixed on the base 1. A pair of guide components are respectively mounted on both sides of the screw 68 of the screw assembly.

[0045] Preferably, the screw assembly further includes a push plate 65, a handwheel 681, a pressing head 682, and a locking nut 683. The handwheel 681 is connected to one end of the screw 68, and the pressing head 682 is fixedly connected to the other end of the screw 68. The push plate 65 is in contact with the pressing head 682. When the pressing head 682 rotates, the end face of the pressing head 682 slides in contact with the push plate 65. The push plate 65 can abut against the pressing wheel 64. The screw 68 is threadedly connected to the mounting base 69. The locking nut 683 is threadedly connected to the screw 68. The locking nut 683 is used to lock the screw 68. When locked, the locking nut 683 abuts against the mounting base 69.

[0046] Preferably, the guide assembly includes a guide rod 66 and a guide seat 67. The guide seat 67 is mounted on the base 1. The guide rod 66 is fixedly connected to the side of the push plate 65 away from the pressure wheel 64, and the guide rod 66 and the guide seat 67 are slidably connected. The guide assembly plays a guiding role, which facilitates the rotation of the screw 68 to drive the push plate 65 to move smoothly.

[0047] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, a dust removal mechanism 9 is provided in the receiving cavity 72 of the housing 7. The dust removal mechanism 9 includes a first brush cylinder 91 and a second brush cylinder 93. The first brush cylinder 91 is installed in the receiving cavity 72 and is located at the upper end of the chain 3. The second brush cylinder 93 is located directly below the first brush cylinder 91 and at the lower end of the chain 3.

[0048] Preferably, a first cleaning brush 92 is sleeved on the outer periphery of the first brush cylinder 91, and a second cleaning brush 94 is sleeved on the outer periphery of the second brush cylinder 93. Both the first cleaning brush 92 and the second cleaning brush 94 are pressed against the chain 3. The bristles of the first cleaning brush 92 and the second cleaning brush 94 can extend into the edge of the chain hole of the chain 3 to thoroughly clean the upper and lower sides of the chain 3.

[0049] Preferably, a recycling bin 95 is provided at the bottom of the receiving cavity 72, and a feed hole 951 is provided at the upper end of the recycling bin 95, so that the dust cleaned by the first cleaning brush 92 and the second cleaning brush 94 can fall into the recycling bin 95 through the feed hole 951.

[0050] Preferably, the chain 3 passes through the housing 7 via a through slot 71.

[0051] Preferably, the front end of the box 7 is provided with a side door 73, which facilitates the retrieval and placement of the recycling box 95.

[0052] Working principle: When tensioning the chain 3 as needed, turn the handwheel 681 by hand, causing the screw 68 to rotate clockwise. This causes the pressure head 682 at the end of the screw 68 to drive the push plate 65 to move. The push plate 65 moves smoothly under the cooperation of the guide rod 66 and the guide seat 67, and gradually presses against the pressure roller 64. The pressure roller 64 then drives the swing rod 61 to swing around the hinge shaft 611, thereby causing the pressure roller 62 on the protrusion 612 to tension the chain 3. After that, tighten the locking nut 683, so that the locking nut 683 abuts against the mounting base 69, thereby locking the screw 68 and ensuring that the pressure roller 62 reliably presses against the chain 3 to tension it.

[0053] When the chain 3 needs to be loosened, rotate the locking nut 683 to release the locking nut 683 from the screw 68. Then, rotate the handwheel 681 in the opposite direction by hand, so that the handwheel 681 drives the screw 68 to rotate counterclockwise. This causes the pressure head 682 at the end of the screw 68 to move away from the push plate 65, thereby releasing the pressure of the pressure roller 62 on the chain 3 and putting the chain 3 in a relaxed state.

[0054] Preferably, in order to facilitate the rapid release of the pressure exerted by the pressure roller 62 on the chain 3, such as Figure 2 As shown, a tension spring 613 is provided between the rocker arm 61 and the base 1.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to the embodiments of this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transmission device for a roller shutter door motor, characterized in that, include: A base (1); First sprocket (5); Second sprocket (8); A chain (3) is sleeved between the first sprocket (5) and the second sprocket (8); The base (1) is equipped with a tensioning mechanism (6), which is used to adjust the tension of the chain (3). The tensioning mechanism (6) includes: A rocker arm (61) is pivotally connected to the base (1); A pressure roller (62) is mounted on the swing arm (61), and the pressure roller (62) presses against the outer ring of the chain (3); A pressure roller (64) is mounted on the rocker arm (61) at a distance from the pressure roller (62). A screw assembly is disposed on the base (1) and abuts against the pressure wheel (64).

2. The transmission device for a roller shutter door motor according to claim 1, characterized in that, The tensioning mechanism (6) also includes a pair of guide components, which are disposed on both sides of the screw assembly.

3. The transmission device for a roller shutter door motor according to claim 2, characterized in that, The screw assembly includes: A screw (68) is threadedly connected to a mounting seat (69) on the base (1); A handwheel (681) is connected to one end of the screw (68); A pressing head (682) is fixedly connected to the other end of the screw (68); A push plate (65) abuts against the pressure head (682), and the push plate (65) can abut against the pressure wheel (64); A locking nut (683) is threadedly connected to the screw (68), and the locking nut (683) can abut against the mounting base (69).

4. The transmission device for a roller shutter door motor according to claim 3, characterized in that, The guiding component includes: A guide seat (67) is mounted on the base (1); A guide rod (66) is fixedly connected to the side of the push plate (65) away from the pressure wheel (64), and the guide rod (66) is slidably connected to the guide seat (67).

5. The transmission device for a roller shutter door motor according to claim 1, characterized in that, A box (7) is installed on the base (1).

6. The transmission device for a roller shutter door motor according to claim 5, characterized in that, A dust removal mechanism (9) is provided inside the receiving cavity (72) of the box (7), and the dust removal mechanism (9) includes: A first brush cylinder (91) is installed in the receiving cavity (72) and located at the upper end of the chain (3) in the receiving cavity (72); A second brush cylinder (93) is located directly below the first brush cylinder (91) and at the lower end of the chain (3) within the receiving cavity (72).

7. The transmission device for a roller shutter door motor according to claim 6, characterized in that, A first cleaning brush (92) is fitted around the outer periphery of the first brush cylinder (91), and a second cleaning brush (94) is fitted around the outer periphery of the second brush cylinder (93). The bristles of the first cleaning brush (92) and the second cleaning brush (94) both abut against the chain (3).

8. The transmission device for a roller shutter door motor according to claim 6, characterized in that, A recycling box (95) is provided at the bottom of the receiving cavity (72), and a feed hole (951) is provided at the upper end of the recycling box (95).

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