Tubular motor that enables vibration suppression at the stroke head end

Abstract

To provide a tubular motor capable of suppressing vibration at the stroke head end. [Solution] The tubular motor includes a main body 1, one end of which is connected to an output shaft, and the other end of which is connected to a stroke head 3. A vibration-damping assembly is provided at the connection 31 between the main body and the stroke head. The vibration-damping assembly includes a flexible vibration-damping sleeve 4 and a rigid connecting sleeve 5. The flexible vibration-damping sleeve is fitted onto the end of the stroke head inserted into the main body, and the rigid connecting sleeve is fitted onto the outside of the flexible vibration-damping sleeve. The main body is fitted onto the rigid connecting sleeve. The internal and external fitting of the flexible vibration-damping sleeve and the rigid connecting sleeve in the vibration-damping assembly prevents direct contact between the main body and the stroke head, and vibrations generated by the main body are filtered by the flexible vibration-damping sleeve, reducing vibration transmission and thereby achieving vibration and noise control.

Description

[Technical Field]

[0001] The present invention relates to the technical field of tubular motors, and more particularly to a tubular motor capable of damping vibration at the stroke head end. [Background technology]

[0002] For electric curtains, quietness has a certain advantage in improving customer experience and product competitiveness. Generally, tubular motors used in electric curtains include a main body, an output shaft and a stroke head connected to both ends of the main body. The main body includes an outer tube, a motor core, a reducer and a control board installed inside the outer tube. When a tubular motor is operating, the motor core rotates at high speed and generates vibrations. This vibration is transmitted through the outer tube to the stroke head and the external bracket connected to the stroke head, generating noise and causing a bad experience for users. How to reduce the vibration at the stroke head end of a tubular motor to reduce noise is currently an issue that needs to be resolved urgently. Summary of the Invention [Problem to be solved by the invention]

[0003] In contrast to the current state of the prior art described above, the technical problem that the present invention aims to solve is to provide a tubular motor that can damp vibration at the stroke head end and reduce noise. [Means for solving the problem]

[0004] The technical solution used by the present invention to solve the above technical problems is as follows: A tubular motor capable of vibration damping at the end of a stroke head, comprising a body, one end of the body being connected to an output shaft, the other end of the body being connected to a stroke head, a vibration damping assembly being provided at the connection between the body and the stroke head, the vibration damping assembly including a flexible vibration damping sleeve and a rigid connecting sleeve, the flexible vibration damping sleeve being fitted onto the end of the stroke head inserted into the body, the rigid connecting sleeve being fitted onto the outside of the flexible vibration damping sleeve, and the body being fitted onto the rigid connecting sleeve.

[0005] Furthermore, a connecting groove is provided within the flexible vibration damping sleeve, penetrating both ends along its length, and a connecting portion is provided at the end inserted into the main body portion of the stroke head, which is inserted into the connecting groove.

[0006] Furthermore, the connection portion has at least one protrusion provided in the longitudinal direction of the connection portion, and an engagement groove that engages with the protrusion is provided within the flexible vibration damping sleeve, and the engagement groove is connected to the connection groove.

[0007] Furthermore, both ends of the flexible vibration-damping sleeve are provided with a first extension edge and a second extension edge extending outward, and the end facing the main body of the connection portion is provided with an attachment hole into which a screw is tightened, and a gasket is provided on the screw, and the gasket is attached to the end face of the second extension edge facing the main body portion, the outer diameter of the gasket is larger than the inner diameter of the connection groove and smaller than the outer diameter of the second extension edge, and the stroke head is provided with a ring-shaped stopper against which the first extension edge abuts.

[0008] Furthermore, a through groove is provided within the rigid connection sleeve for fitting a flexible vibration-damping sleeve, and one end of the rigid connection sleeve is affixed to the end surface of the first extension edge facing the rigid connection sleeve, and the other end of the rigid connection sleeve is affixed to the end surface of the second extension edge facing the rigid connection sleeve.

[0009] Furthermore, a limiting groove is provided in the through groove in the longitudinal direction of the through groove, and a limiting rib that engages with the limiting groove is provided on the outer wall of the flexible vibration-damping sleeve.

[0010] Furthermore, a barrier edge is protruded from the end of the hard connection sleeve close to the first extending edge, and the end of the main body portion to which the hard connection sleeve is fitted is attached to the end face of the barrier edge facing the main body portion.

[0011] Furthermore, the rigid connecting sleeve is provided with a positioning block that is connected to and flush with the barrier edge, and the main body is provided with a positioning groove that engages with the positioning block.

[0012] Furthermore, the rigid connection sleeve is provided with a first screw hole, and the main body portion is provided with a second screw hole corresponding to the first screw hole, and the first screw hole and the second screw hole are connected by a screw passing through them.

[0013] Furthermore, the flexible vibration-damping sleeve is made of rubber or silica gel, and the hard connecting sleeve is made of plastic. [Effects of the Invention]

[0014] Compared with the prior art, the advantages of this invention are as follows: In this invention, a vibration-damping assembly is installed at the connection between the main body and the stroke head, and the direct contact between the main body and the stroke head is interrupted by the internal and external fitting of the flexible vibration-damping sleeve and the rigid connection sleeve in the vibration-damping assembly, and the vibration generated by the main body is filtered by the flexible vibration-damping sleeve, reducing the transmission of vibration and thereby fulfilling the role of vibration damping and noise reduction. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a structural diagram of the present invention. [Figure 2] FIG. [Figure 3]1 is a radial cross-sectional view of a vibration damping assembly according to the present invention; [Figure 4] 1 is a structural diagram of the present invention, showing the connection between the stroke head and the vibration damping assembly; DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will be further described below in conjunction with specific embodiments.

[0017] As shown in Figures 1 to 4, the present invention provides a tubular motor that includes a main body 1, one end of which is connected to an output shaft 2, and the other end of which is connected to a stroke head 3, and a vibration-damping assembly is provided at the connection between the main body 1 and the stroke head 3, and the vibration-damping assembly includes a flexible vibration-damping sleeve 4 and a hard connecting sleeve 5, and the flexible vibration-damping sleeve 4 is fitted onto the end of the stroke head 3 that is inserted into the main body 1, and the hard connecting sleeve 5 is fitted onto the outside of the flexible vibration-damping sleeve 4, and the main body 1 is fitted onto the hard connecting sleeve 5, thereby enabling vibration damping at the stroke head end.

[0018] In this invention, a vibration-damping assembly is installed at the connection between the main body 1 and the stroke head 3, and the direct contact between the main body 1 and the stroke head 3 is blocked by the internal and external fitting of the flexible vibration-damping sleeve 4 and the rigid connecting sleeve 5 in the vibration-damping assembly. The vibration generated by the main body 1 is filtered by the flexible vibration-damping sleeve 4, and the transmission of vibration is reduced, thereby playing the role of vibration damping and noise reduction. Here, the flexible vibration-damping sleeve 4 can play the role of filtering and absorbing vibration, and the rigid connecting sleeve 5 can play the role of supporting the flexible vibration-damping sleeve 4 and preventing its deformation.

[0019] Referring to Figure 2, the flexible vibration-damping sleeve 4 has a connecting groove 4.1 that runs through both ends along its length, and the end inserted into the main body 1 of the stroke head 3 has a connecting part 3.1 that is inserted into the connecting groove 4.1.

[0020] Here, the connecting portion 3.1 has at least one protrusion 3.2 protruding in the longitudinal direction of the connecting portion 3.2, and the flexible vibration-damping sleeve 4 has a mating groove 4.2 that mates with the protrusion 3.2, and the mating groove 4.2 is connected to the connecting groove 4.1. The mating between the protrusion 3.2 and the mating groove 4.2 can support the flexible vibration-damping sleeve 4 and prevent deformation, thereby extending the service life of the flexible vibration-damping sleeve 4. See Figures 2 and 3. Preferably, the protrusions 3.2 can be two symmetrically arranged, three equally spaced apart, or four equally spaced apart, and the heights of adjacent protrusions 3.2 can be different, thereby better fulfilling the role of support and prevention of deformation.

[0021] 2 and 4, the flexible vibration-damping sleeve 4 is provided at both ends with a first extending edge 4.3 and a second extending edge 4.4 extending outward. The end of the connecting portion 3.1 facing the main body 1 is provided with a mounting hole 3.3 into which a screw is fastened. A gasket 6 is attached to the screw, and the gasket 6 is attached to the end face of the second extending edge 4.4 facing the main body 1. The outer diameter of the gasket 6 is larger than the inner diameter of the connecting groove 4.1 and smaller than the outer diameter of the second extending edge 4.4. As a result, the gasket 6 can prevent the flexible vibration-damping sleeve 4 from sliding toward the main body 1, and the gasket This ensures that the gasket 6 does not come into contact with the main body 1, preventing vibration transmission to the gasket 6. The stroke head 3 is provided with a ring-shaped stopper 3.4 against which the first extending edge 4.3 abuts, which can prevent the flexible vibration-damping sleeve 4 from sliding toward the stroke head 3. The combination of the ring-shaped stopper 3.4 and the first extending edge 4.3, as well as the combination of the screw, gasket 6 and the second extending edge 4.4, acts to restrict the flexible vibration-damping sleeve 4 in the axial direction, preventing axial movement of the flexible vibration-damping sleeve 4 and stabilizing the installation of the flexible vibration-damping sleeve 4.

[0022] 2 and 4, the rigid connecting sleeve 5 has a through-groove 5.1 for receiving the flexible vibration-damping sleeve 4. One end of the rigid connecting sleeve 5 is attached to the end surface of the first extending edge 4.3 facing the rigid connecting sleeve 5, and the other end of the rigid connecting sleeve 5 is attached to the end surface of the second extending edge 4.4 facing the rigid connecting sleeve 5. As a result, the rigid connecting sleeve 5 is fitted onto the outside of the flexible vibration-damping sleeve 4 by the through-groove 5.1, and both ends of the rigid connecting sleeve 5 do not extend beyond the ends of the flexible vibration-damping sleeve 4 but are blocked by the first extending edge 4.3 and the second extending edge 4.4, respectively. This not only serves to limit the rigid connecting sleeve 5 in the axial direction, but also ensures that the rigid connecting sleeve 5 does not directly contact the stroke head 3. Vibrations generated by the main body 1 are absorbed and filtered by the flexible vibration-damping sleeve 4 without being directly transmitted to the stroke head 3, thereby providing vibration and noise control for the end of the stroke head 3 on the main body 1.

[0023] 2 and 3, the through groove 5.1 is provided with a limiting groove 5.2 extending longitudinally of the through groove 5.1, and the outer wall of the flexible vibration-damping sleeve 4 is provided with a limiting rib 4.5 which engages with the limiting groove 5.2. The engagement between the limiting groove 5.2 and the limiting rib 4.5 prevents the rigid connecting sleeve 5 from rotating relative to the flexible vibration-damping sleeve 4, while the rigid connecting sleeve 5 provides support and protection for the flexible vibration-damping sleeve 4 and prevents deformation of the flexible vibration-damping sleeve 4, thereby extending its service life. Preferably, the number of limiting grooves 5.2 may be two, four, or more, and the shape is not limited as long as the limiting rib 4.5 and the limiting groove 5.2 can engage with each other.

[0024] 2 and 4, a barrier edge 5.3 is protruded from the end of the rigid connecting sleeve 5 close to the first extending edge 4.3, and the end of the body 1 to which the rigid connecting sleeve 5 is fitted is attached to the end face of the barrier edge 5.3 facing the body 1, thereby ensuring that the body 1 does not come into direct contact with the stroke head 3. Vibrations generated by the body 1 are absorbed and filtered by the flexible vibration-damping sleeve 4 without being directly transmitted to the stroke head 3, thereby playing a role in vibration damping and noise reduction for the end of the stroke head 3 on the body 1.

[0025] 2 and 4, the rigid connecting sleeve 5 is provided with a positioning block 5.4 that is connected to the barrier edge 5.3 and is flush with the barrier edge 5.3, and the main body 1 is provided with a positioning groove 1.1 that engages with the positioning block 5.4, which facilitates quick insertion of the main body 1 and the rigid connecting sleeve 5 and plays a role in positioning and guiding.

[0026] Referring to FIG. 2, the rigid connection sleeve 5 has a first screw hole 5.5, and the main body 1 has a second screw hole 1.2 corresponding to the first screw hole 5.5. The first screw hole 5.5 and the second screw hole 1.2 are connected by a screw passing through them, thereby fixedly connecting the main body 1 to the rigid connection sleeve 5.

[0027] Here, the flexible vibration-damping sleeve 4 is made of rubber or silica gel and can filter and absorb vibrations, thereby reducing noise, and the hard connecting sleeve 5 is made of plastic and can support the flexible vibration-damping sleeve 4 and prevent its deformation.

[0028] Here, the main body 1 includes a tube, a motor core attached to the tube, a reducer, and a control plate, and the main body 1 has a general structure, so detailed description thereof will be omitted.

[0029] The materials, reagents and experimental equipment used in the embodiments of the present invention are all commercially available products that are suitable for the field of tubular motors for electric curtains, unless otherwise specified. [Explanation of symbols]

[0030] 1 Main body 1.1 Locating groove 1.2 Second screw hole 2 output shafts 3 Stroke head 3.1 Connections 3.2 Projections 3.3 Mounting holes 3.4 Ring-shaped stopper 4 Flexible vibration damping sleeve 4.1 Connecting groove 4.2 Fitting groove 4.3 First extension 4.4 Second Extended Edge 4.5 Restriction Ribs 5 Hard connection sleeve 5.1 Through-groove 5.2 Restriction groove 5.3 Barrier Edge 5.4 Positioning Blocks 5.5 First screw hole 6 gaskets

Claims

1. 1. A tubular motor capable of vibration damping at a stroke head end, comprising a main body, one end of which is connected to an output shaft, and the other end of which is connected to a stroke head, wherein a vibration damping assembly is provided at the connection between the main body and the stroke head, the vibration damping assembly including a flexible vibration damping sleeve and a hard connecting sleeve, the flexible vibration damping sleeve being fitted onto the end of the stroke head inserted into the main body, the hard connecting sleeve being fitted onto the outside of the flexible vibration damping sleeve, and the main body being fitted onto the hard connecting sleeve.

2. A tubular motor capable of vibration damping at the end of a stroke head as described in claim 1, characterized in that a connecting groove is provided within the flexible vibration damping sleeve, penetrating both ends along its length, and a connecting portion is provided at the end inserted into the main body of the stroke head, which is inserted into the connecting groove.

3. A tubular motor capable of vibration damping at the stroke head end as described in claim 2, characterized in that the connection portion has at least one protrusion portion protruding in the longitudinal direction of the connection portion, and the flexible vibration damping sleeve has an engagement groove that engages with the protrusion portion, and the engagement groove communicates with the connection groove.

4. A tubular motor capable of vibration damping at the stroke head end as described in claim 2, characterized in that the flexible vibration damping sleeve has a first extension edge and a second extension edge extending outward at both ends, the end of the connection portion facing the main body portion has an attachment hole for fastening a screw, the screw is provided with a gasket, and the gasket is attached to the end face of the second extension edge facing the main body portion, the outer diameter of the gasket is larger than the inner diameter of the connection groove and smaller than the outer diameter of the second extension edge, and the stroke head is provided with a ring-shaped stopper against which the first extension edge abuts.

5. A tubular motor capable of vibration damping at the stroke head end as described in claim 4, characterized in that a through groove for fitting a flexible vibration damping sleeve is provided within the rigid connection sleeve, one end of the rigid connection sleeve is attached to the end surface of the first extension side facing the rigid connection sleeve, and the other end of the rigid connection sleeve is attached to the end surface of the second extension side facing the rigid connection sleeve.

6. A tubular motor capable of vibration damping at the stroke head end as described in claim 5, characterized in that a limiting groove is provided within the through groove in the longitudinal direction of the through groove, and a limiting rib that engages with the limiting groove is provided on the outer wall of the flexible vibration damping sleeve.

7. A tubular motor capable of vibration damping at the stroke head end as described in claim 5, characterized in that a barrier edge is protruded around the end of the hard connection sleeve close to the first extending edge, and the end of the main body portion to which the hard connection sleeve is fitted is attached to the end surface of the barrier edge facing the main body portion.

8. 8. A tubular motor capable of vibration damping at the stroke head end as described in claim 7, characterized in that the rigid connecting sleeve is provided with a positioning block that is connected to the barrier edge and is in the same plane, and the main body portion is provided with a positioning groove that engages with the positioning block.

9. 2. A tubular motor capable of vibration damping at the stroke head end as described in claim 1, characterized in that the rigid connecting sleeve is provided with a first screw hole, the main body portion is provided with a second screw hole corresponding to the first screw hole, and the first screw hole and the second screw hole are connected by a screw passing through them.

10. 2. The tubular motor with vibration damping at the stroke head end as claimed in claim 1, wherein the flexible vibration damping sleeve is made of rubber or silica gel, and the hard connecting sleeve is made of plastic.

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