A multi-spring combined roller shutter machine

Abstract

The utility model discloses a kind of multi-spring combination's roller shutter machine, belong to roller shutter technical field, including shell, fixedly connected with fixed rod in shell, the circumferential surface of fixed rod is rotatably connected with rotating block and auxiliary block, multiple springs are fixedly connected with rotating block end close to auxiliary block, and multiple springs are coaxially sleeved from inside to outside by outside of fixed rod, the outer surface of fixed rod is slidably connected with sliding block, and the end of multiple springs away from rotating block is fixedly connected on sliding block, rotating block and auxiliary block are fixedly connected with rotary drum, and rotary drum is sleeved in the outside of multiple springs, the circumferential surface of rotary drum is fixedly connected with winding cloth;In the utility model, winding cloth mainly relies on the elasticity of multiple springs in the process of being retracted, multiple springs are sequentially arranged from inside to outside, can be mutually matched, improve elasticity while prolong service life, avoid elasticity weakening under long time use, affect the winding effect of roller shutter machine.

Description

Technical Field

[0001] This utility model relates to the field of roller blind technology, and more specifically, to a roller blind machine with a multi-spring combination. Background Technology

[0002] Roller blinds can be applied in many industries. In the industrial field, roller blinds protect equipment by retracting. Currently, most existing roller blinds use a single spring to achieve automatic retraction. A single spring has a short service life and its elasticity will weaken after long-term use, affecting the retraction effect. Therefore, this utility model proposes a roller blind with a multi-spring combination. Utility Model Content

[0003] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide a multi-spring combination roller shutter machine, which aims to solve the problem that the existing roller shutter machine uses a single spring to achieve automatic retraction of the roller shutter machine. The single spring has a short service life and the elasticity will weaken under long-term use, affecting the retraction effect.

[0004] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution: A multi-spring combination roller shutter machine includes a housing. A fixed rod is fixedly connected inside the housing. A rotating block and an auxiliary block are rotatably connected to the circumferential surface of the fixed rod. A plurality of springs are fixedly connected to the end of the rotating block near the auxiliary block, and the plurality of springs are coaxially sleeved from the inside to the outside of the fixed rod. A slider is slidably connected to the outer surface of the fixed rod, and the ends of the plurality of springs away from the rotating block are fixedly connected to the slider. A rotating cylinder is fixedly connected between the rotating block and the auxiliary block, and the rotating cylinder is sleeved on the outside of the plurality of springs. A take-up fabric is fixedly connected to the circumferential surface of the rotating cylinder, and one end of the take-up fabric extends through to the outside of the housing.

[0005] As a preferred embodiment of this utility model, the fixed rod includes two rotating parts and a sliding part. The two rotating parts are respectively fixedly connected to the symmetrical side walls of the outer shell, and the rotating block and the auxiliary block are respectively rotatably connected to the circumferential surface of the two rotating parts. The sliding part is fixedly connected between the two rotating parts, and the slider is slidably connected to the outer surface of the sliding part.

[0006] As a preferred embodiment of this utility model, a traction rod is rotatably connected inside the outer shell, and the rolled-up cloth corresponds to the traction rod.

[0007] As a preferred embodiment of this utility model, a guide strip is fixedly connected to the bottom of the outer shell, and the guide strip corresponds to the take-up cloth.

[0008] As a preferred embodiment of this utility model, a pull strip assembly is fixedly connected to one end of the winding cloth that extends through the outer side of the outer shell, and the pull strip assembly has a connection hole.

[0009] As a preferred embodiment of this utility model, an installation strip is fixedly connected to the outer shell, and the installation strip has a fixing hole.

[0010] In a preferred embodiment of this utility model, bearings are provided between the rotating block and the auxiliary block and the two rotating parts, respectively.

[0011] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) In this scheme, the rewinding cloth mainly relies on the elastic force of multiple springs during the rewinding process. Multiple springs are set in sequence from the inside to the outside, which can cooperate with each other to improve elasticity and extend service life, and avoid the elasticity from weakening under long-term use, which would affect the rewinding effect of the curtain machine. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention; Figure 2 This is a perspective view of the present utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a diagram of the internal structure of the present invention; Figure 5 In this utility model Figure 4 Exploded view.

[0013] Explanation of the labels in the diagram: 1. Outer shell; 2. Fixing rod; 21. Rotating part; 22. Sliding part; 3. Rotating block; 4. Auxiliary block; 5. Spring; 6. Slider; 7. Rotating drum; 8. Rewinding cloth; 9. Traction rod; 10. Guide bar; 11. Pull bar assembly; 12. Connecting hole; 13. Mounting bar; 14. Fixing hole; 15. Bearing. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Example: Please see Figure 1-5 A multi-spring combination roller shutter machine includes a housing 1. A fixed rod 2 is fixedly connected inside the housing 1. A rotating block 3 and an auxiliary block 4 are rotatably connected to the circumferential surface of the fixed rod 2. A plurality of springs 5 ​​are fixedly connected to the end of the rotating block 3 near the auxiliary block 4. The plurality of springs 5 ​​are located on the outside of the fixed rod 2 and are coaxially sleeved from the inside to the outside. A slider 6 is slidably connected to the outer surface of the fixed rod 2. The ends of the plurality of springs 5 ​​away from the rotating block 3 are fixedly connected to the slider 6. A rotating drum 7 is fixedly connected between the rotating block 3 and the auxiliary block 4. The rotating drum 7 is sleeved on the outside of the plurality of springs 5. A take-up cloth 8 is fixedly connected to the circumferential surface of the rotating drum 7. One end of the take-up cloth 8 extends through to the outside of the housing 1.

[0018] In this embodiment, by pulling the end of the winding cloth 8 that extends to the outside of the outer shell 1, the winding cloth 8 is pulled outward to protect the equipment. The pulling of the winding cloth 8 can be mechanically or manually controlled. During the pulling process, the winding cloth 8 drives the rotating drum 7 to rotate. The rotating drum 7 is connected to the fixed rod 2 through the rotating block 3 and the auxiliary block 4 and rotates on the outside of multiple springs 5. At the same time, the rotating block 3 causes multiple springs 5 ​​to extend elastically in sync, pushing the slider 6 to slide on the fixed rod 2, thereby generating a certain torque. When the winding cloth 8 needs to be retracted, the torque generated by the multiple springs 5 ​​pulls the slider 6 back to slide and reset, causing the rotating block 3 and the auxiliary block 4 to drive the rotating drum 7 to rotate in the opposite direction. The rotating drum 7 pulls the winding cloth 8 back into the outer shell 1, thereby achieving the purpose of winding.

[0019] Specifically, the fixed rod 2 includes two rotating parts 21 and a sliding part 22. The two rotating parts 21 are fixedly connected to the symmetrical side walls of the outer shell 1, and the rotating block 3 and the auxiliary block 4 are rotatably connected to the circumferential surfaces of the two rotating parts 21. The sliding part 22 is fixedly connected between the two rotating parts 21, and the slider 6 is slidably connected to the outer surface of the sliding part 22.

[0020] In this embodiment, the fixed rod 2 consists of two rotating parts 21 and a sliding part 22. The two rotating parts 21 enable the rotating block 3 and the auxiliary block 4 to rotate stably, and the sliding part 22 enables the slider 6 to slide smoothly.

[0021] Specifically, a traction rod 9 is rotatably connected inside the outer casing 1, and the roll-up cloth 8 corresponds to the traction rod 9.

[0022] In this embodiment, the traction rod 9 can roll the take-up cloth 8, so that the take-up cloth 8 can stretch and contract smoothly when it is being rolled up.

[0023] Specifically, a guide strip 10 is fixedly connected to the bottom of the outer casing 1, and the guide strip 10 corresponds to the take-up cloth 8.

[0024] In this embodiment, the guide strip 10 is used to assist the winding fabric 8 in extending and retracting, so that the winding fabric 8 can extend and retract smoothly in one direction.

[0025] Specifically, a pull strip assembly 11 is fixedly connected to one end of the roll-up fabric 8 that extends through to the outside of the outer shell 1, and a connection hole 12 is provided on the pull strip assembly 11.

[0026] In this embodiment, the pull bar assembly 11 facilitates the pulling out of the take-up cloth 8 for equipment protection. The connection hole 12 on the pull bar assembly 11 facilitates the connection of the outer end of the take-up cloth 8 to the mechanical equipment, so that the mechanical equipment can control the pulling out of the take-up cloth 8.

[0027] Specifically, an installation strip 13 is fixedly connected to the outer casing 1, and a fixing hole 14 is provided on the installation strip 13.

[0028] In this embodiment, the mounting strip 13 is provided with fixing holes 14. By using the fixing holes 14 in conjunction with fasteners such as pins and bolts, the mounting strip 13 can be fixed in the required position, making it convenient for the roll-up cloth 8 to be pulled out.

[0029] Specifically, bearings 15 are provided between the rotating block 3 and the auxiliary block 4 and the two rotating parts 21, respectively.

[0030] In this embodiment, the two bearings 15 can reduce the friction between the rotating block 3 and the auxiliary block 4 and the two rotating parts 21, making the rotation of the rotating block 3 and the auxiliary block 4 smoother.

[0031] Working principle: By pulling out one end of the take-up cloth 8 located outside the outer shell 1, the take-up cloth 8 extends and unfolds to protect the equipment. During the pulling process, the take-up cloth 8 drives the rotating drum 7 to rotate. The rotating drum 7 drives the rotating block 3 and the auxiliary block 4 to rotate on the fixed rod 2. During the rotation of the rotating block 3, multiple springs 5 ​​generate torque to push the slider 6 to slide on the fixed rod 2. When the take-up cloth 8 needs to be retracted, by releasing one end of the take-up cloth 8, the multiple springs 5 ​​drive the rotating block 3 to rotate and reset through their own elasticity. At the same time, the slider 6 is pulled to slide and reset. The rotating block 3, together with the auxiliary block 4, drives the rotating drum 7 to rotate in the opposite direction and reset. The rotating drum 7 pulls the take-up cloth 8 back into the outer shell 1 to retract and roll it up, thereby realizing the retraction of the take-up cloth 8.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A multi-spring combination roller shutter machine, comprising a housing (1), characterized in that: A fixed rod (2) is fixedly connected inside the outer shell (1). A rotating block (3) and an auxiliary block (4) are rotatably connected to the circumferential surface of the fixed rod (2). A plurality of springs (5) are fixedly connected to one end of the rotating block (3) near the auxiliary block (4). The plurality of springs (5) are located on the outside of the fixed rod (2) and are coaxially sleeved from the inside to the outside. A slider (6) is slidably connected to the outer surface of the fixed rod (2). The ends of the plurality of springs (5) away from the rotating block (3) are fixedly connected to the slider (6). A rotating cylinder (7) is fixedly connected between the rotating block (3) and the auxiliary block (4). The rotating cylinder (7) is sleeved on the outside of the plurality of springs (5). A winding cloth (8) is fixedly connected to the circumferential surface of the rotating cylinder (7). One end of the winding cloth (8) extends through to the outside of the outer shell (1).

2. The multi-spring combination roller shutter machine according to claim 1, characterized in that: The fixed rod (2) includes two rotating parts (21) and a sliding part (22). The two rotating parts (21) are fixedly connected to the symmetrical side walls of the outer shell (1), and the rotating block (3) and the auxiliary block (4) are rotatably connected to the circumferential surfaces of the two rotating parts (21). The sliding part (22) is fixedly connected between the two rotating parts (21), and the slider (6) is slidably connected to the outer surface of the sliding part (22).

3. The multi-spring combination roller shutter machine according to claim 2, characterized in that: The outer casing (1) is rotatably connected to a traction rod (9), and the roll-up cloth (8) corresponds to the traction rod (9).

4. A multi-spring combination roller shutter machine according to claim 3, characterized in that: The bottom of the outer shell (1) is fixedly connected to a guide strip (10), and the guide strip (10) corresponds to the take-up cloth (8).

5. A multi-spring combination roller shutter machine according to claim 4, characterized in that: The end of the winding cloth (8) that extends through to the outside of the outer shell (1) is fixedly connected to a pull strip assembly (11), and the pull strip assembly (11) has a connection hole (12).

6. A multi-spring combination roller shutter machine according to claim 5, characterized in that: An installation strip (13) is fixedly connected to the outer shell (1), and a fixing hole (14) is provided on the installation strip (13).

7. A multi-spring combination roller shutter machine according to claim 6, characterized in that: The rotating block (3) and the auxiliary block (4) are respectively provided with bearings (15) between them and the two rotating parts (21).

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