Lifting mechanism of massage sofa

Abstract

The massage sofa lifting mechanism comprises a base, a top plate, a lifting plate and a sofa body, supporting plates are fixedly connected to the two sides of the top end of the base, vertical grooves are vertically formed in the centers of the side walls of the supporting plates in a penetrating mode, and a plurality of supporting grooves are formed in the inner side walls of the vertical grooves in a linear array mode; an adjusting groove is formed in the lower portion of the surface of the side, facing the supporting plate, of the lifting plate, a reset spring is fixedly connected to the inner side wall of the adjusting groove, the other end of the reset spring is fixedly connected with the side wall of a connecting block transversely sliding in the adjusting groove, and a supporting rod is fixedly connected to the outer side wall of the connecting block; push plates are fixedly connected to the top ends of the electric push rods; the supporting grooves are formed to support the supporting rods on the surface of the lifting plate, so that pressure borne by the electric push rods is relieved, the service life of the electric push rods is prolonged, and the fault probability is reduced.

Description

Technical Field

[0001] This application relates to the technical field of massage sofas, and specifically to a lifting mechanism for a massage sofa. Background Art

[0002] With the improvement of living quality, people's choices of furniture have begun to change. As one of the main pieces of furniture at home, sofas are more diversified in selection. Among them, massage sofas are a type of household product that combines traditional sofas with massage functions. They can imitate manual massage to dredge meridians, promote blood circulation, and maintain the balance of yin and yang in the body. After massage, one can feel the muscles relax, the joints become flexible, and one's spirit is refreshed and fatigue is eliminated.

[0003] Patent No. CN 210930477 U discloses a sofa with a lifting function, including a lifting mechanism, a control panel, a hydraulic lift, etc. Since a lifting mechanism is provided at the bottom, when in use, the electric push rod in the lifting mechanism is controlled through the control panel to achieve the function of adjusting the height of the sofa. The anti-slip shaft can prevent slipping, making the sofa structure more stable and improving safety performance. This sofa can not only adjust the height of the sofa, but also has the function of massaging and relaxing the body, and also has an automatically lifting ashtray, with diverse functions.

[0004] However, in use, it has the following defects:

[0005] Although an electric push rod is used at the bottom of the sofa to control the lifting, the electric push rod may age, wear, and be damaged after long-term pressure. Moreover, all four corners are supported by electric push rods. Once one of them is damaged, the sofa may be unstable in support, and may also tilt during the lifting process, causing accidents. Summary of the Utility Model

[0006] The purpose of this application is to provide a lifting mechanism for a massage sofa, which solves the problems in the background art that the electric push rod may age, wear, and be damaged after long-term pressure, and all four corners are supported by electric push rods. Once one of them is damaged, the sofa may be unstable in support, and may also tilt during the lifting process, causing accidents.

[0007] To achieve the above object, the present application provides the following technical solution: A lifting mechanism for a massage sofa, comprising a base, a top plate, a lifting plate and a sofa main body. On both sides of the top of the base, support plates are fixedly connected. Vertically through the center of the side wall of the support plate, a vertical groove is opened. Along the inner side wall of the vertical groove, a number of support grooves are arranged in a linear array. Below the lower side surface of the lifting plate facing the support plate, an adjustment groove is opened. On the inner side wall of the adjustment groove, a return spring is fixedly connected. The other end of the return spring is fixedly connected to the side wall of a connection block that slides horizontally in the adjustment groove. The outer side wall of the connection block is fixedly connected to a support rod. In the center of the top of the base, an electric push rod is fixedly connected. The top of the electric push rod is fixedly connected to a push plate, and at the four corners of the top of the push plate, buffer springs are fixedly connected. The top of the buffer spring is fixedly connected to the bottom of the top plate. The left and right sides of the top plate are respectively fixedly connected to the side walls of the two lifting plates.

[0008] In this technical solution, through the vertical groove, the support groove, the adjustment groove, the return spring and the connecting rod, the height stability after lifting can be ensured. The lifting plate moves up and down along the side wall of the support plate. During the lifting process, the connection block and the support rod in the adjustment groove slide along the inner wall of the vertical groove under the push of the return spring. When it is necessary to maintain the current height, only need to move the support rod and the return spring back to make the support rod slide into the support groove. At this time, the lifting plate can maintain the current height stability. When it is necessary to adjust the height again, only need to slide the support rod out of the support groove. The operation is relatively convenient, which liberates the pressure on the electric push rod and ensures stability at the same time. At the same time, through the push plate, the buffer spring and the top plate, the pressure on the electric push rod can be further released. The electric push rod starts to extend and drives the push plate to push the top plate for height adjustment. After the support rods on both sides slide into the support groove, at this time the electric push rod can be shortened to make the buffer spring return to the normal state. At this time, the electric push rod does not bear any pressure, which can reduce the probability of failure caused by pressure and extend the service life of the entire lifting mechanism.

[0009] As an alternative embodiment of the technical solution of the present application, on the side surface of the support plate facing the center of the base, a limit groove is vertically opened. Vertically slidably connected inside the limit groove are two limit sliders. The outer side wall of the limit slider is fixedly connected to the side wall of the lifting plate.

[0010] As an alternative embodiment of the technical solution of the present application, the outer end of the support rod passes through the vertical groove and is fixedly connected to a handle.

[0011] As an alternative embodiment of the technical solution of the present application, two limit rods are fixedly connected to the bottom of the top plate. The lower end of the limit rod passes through the surface of the push plate and is located below the push plate.

[0012] As an alternative embodiment of the technical solution of the present application, the top of the top plate is fixedly connected to the sofa main body.

[0013] As an alternative embodiment of the technical solution of the present application, the return spring is located on the inner side wall of the adjustment groove on one side of the support groove, and the return spring is always in a compressed state.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] 1. Through the vertical groove, support groove, adjustment groove, return spring and connecting rod, the present application can ensure the stability of the height after lifting. The lifting plate moves up and down along the side wall of the support plate. During the lifting process, the support rod and the return spring are toggled, so that the support rod slides into the support groove to restrict the support rod. At this time, the lifting plate can maintain the current height stability. When the height needs to be adjusted again, only the support rod needs to be slid out of the support groove, which is relatively convenient to operate. While liberating the pressure of the electric push rod, the stability is ensured.

[0016] 2. Through the push plate, buffer spring and top plate, the present application can further release the pressure of the electric push rod. When the electric push rod starts to extend, it drives the push plate to push the top plate for height adjustment. After the support rods on both sides slide into the support groove, the electric push rod can be shortened at this time, so that the buffer spring returns to the normal state. At this time, the electric push rod does not bear any pressure, which can reduce the probability of failure caused by pressure and extend the service life of the entire lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more apparent:

[0018] Figure 1 It is an overall view of a lifting mechanism of a massage sofa according to the present application;

[0019] Figure 2 It is a side sectional view of the support plate and the lifting plate of a lifting mechanism of a massage sofa according to the present application;

[0020] Figure 3 It is an enlarged view of the adjustment groove of a lifting mechanism of a massage sofa according to the present application;

[0021] Figure 4 It is an enlarged view of the support groove of a lifting mechanism of a massage sofa according to the present application.

[0022] In the figure: 1, base; 2, support plate; 201, vertical groove; 202, support groove; 3, limit groove; 4, limit slider; 5, lifting plate; 501, adjustment groove; 6, return spring; 7, connecting block; 701, support rod; 702, handle; 8, top plate; 9, electric push rod; 10, push plate; 11, buffer spring; 12, limit rod; 13, sofa main body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the following will further elaborate in conjunction with specific embodiments.

[0024] As Figure 1 shown, a lifting mechanism of a massage sofa includes a base 1, a top plate 8, a lifting plate 5 and a sofa main body 13. Both sides of the top of the base 1 are fixedly connected with support plates 2. A vertical groove 201 is vertically penetrated through the center of the side wall of the support plate 2. The top of the top plate 8 is fixedly connected with the sofa main body 13. A massage device is installed inside the sofa main body 13, which is not the technical solution to be protected by the present utility model, so it will not be elaborated further.

[0025] As Figure 2 shown, an electric push rod 9 is fixedly connected to the center of the top of the base 1. The top of the electric push rod 9 is fixedly connected with a push plate 10. And buffer springs 11 are fixedly connected to the four corners of the top of the push plate 10. The top of the buffer springs 11 is fixedly connected to the bottom of the top plate 8. The left and right sides of the top plate 8 are respectively fixedly connected to the side walls of the two lifting plates 5. The buffer springs 11 can enable the electric push rod 9 to release pressure in advance.

[0026] As Figure 2 shown, a limiting groove 3 is vertically opened on the surface of the support plate 2 facing the center of the base 1. Two limiting sliders 4 are vertically slidably connected inside the limiting groove 3. The outer side walls of the limiting sliders 4 are fixedly connected to the side walls of the lifting plate 5. The limiting sliders 4 can keep the lifting plate 5 in a vertical state during the lifting process and increase stability.

[0027] As Figure 2 shown, two limiting rods 12 are fixedly connected to the bottom of the top plate 8. The lower ends of the limiting rods 12 penetrate through the surface of the push plate 10 and are located below the push plate 10. The limiting rods 12 can keep the push plate 10 in a vertical state during the lifting process, so that the buffer springs 11 can be vertically compressed and released.

[0028] As Figure 3 shown, an adjustment groove 501 is opened below the surface of the lifting plate 5 facing the support plate 2. A return spring 6 is fixedly connected to the inner side wall of the adjustment groove 501. The return spring 6 is located on the inner side wall of the adjustment groove 501 on one side of the support groove 202, and the return spring 6 is always in a compressed state, so as to be able to push the connecting block 7 to move away from the support groove 202 and not create obstacles during the lifting process.

[0029] As Figure 3 shown, the other end of the return spring 6 is fixedly connected to the side wall of the connecting block 7 that slides horizontally in the adjustment groove 501. A support rod 701 is fixedly connected to the outer side wall of the connecting block 7. The outer end of the support rod 701 passes through the vertical groove 201 and is fixedly connected to a handle 702.

[0030] As Figure 4 shown, a plurality of support grooves 202 are linearly arranged on the inner side wall of the vertical groove 201. The connecting block 7 and the support rod 701 in the adjustment groove 501 slide along the inner wall of the vertical groove 201 under the push of the return spring 6. When it is necessary to maintain the height, the support rod 701 can be slid into the support groove 202.

[0031] During actual use, the electric push rod 9 is started to adjust the lifting height. The top plate 8 drives the lifting plate 5 to move up and down along the side wall of the support plate 2. During the lifting process, the connecting block 7 and the support rod 701 in the adjustment groove 501 slide along the inner wall of the vertical groove 201 under the push of the return spring 6. When it is necessary to maintain the current height, only need to move the support rod 701 and the return spring 6 back to make the support rod 701 slide into the support groove 202. At this time, the lifting plate 5 can maintain the current height stability. When it is necessary to adjust the height again, only need to slide the support rod 701 out of the support groove 202. The operation is relatively convenient, liberating the pressure of the electric push rod 9 while ensuring stability. The electric push rod 9 starts to extend and drives the push plate 10 to push the top plate 8 to adjust the height. After the support rods 701 on both sides slide into the support grooves 202, at this time the electric push rod 9 can be shortened, making the buffer spring 11 return to the normal state. At this time, the electric push rod 9 does not bear any pressure, enabling it to reduce the failure probability caused by pressure and extending the service life of the entire lifting mechanism.

Claims

1. A massage sofa lifting mechanism, comprising a base (1), a top plate (8), a lifting plate (5) and a sofa body (13), characterized in that: The top sides of the base (1) are fixedly connected to support plates (2), a vertical groove (201) is vertically penetrated through the center of the side wall of the support plate (2), the inner side wall of the vertical groove (201) is provided with a plurality of support grooves (202) in a linear array, an adjustment groove (501) is provided below the surface of one side of the lifting plate (5) facing the support plate (2), a return spring (6) is fixedly connected to the inner side wall of the adjustment groove (501), and the other end of the return spring (6) is connected to a spring (6) which slides laterally in the adjustment groove (501). The movable connecting block (7) is fixedly connected to the side wall, the outer side wall of the connecting block (7) is fixedly connected to a support rod (701), the top center of the base (1) is fixedly connected to an electric push rod (9), the top of the electric push rod (9) is fixedly connected to a push plate (10), and the top four corners of the push plate (10) are fixedly connected to buffer springs (11), the top of the buffer spring (11) is fixedly connected to the bottom of the top plate (8), and the left and right sides of the top plate (8) are respectively fixedly connected to the side walls of the lifting plate (5) on both sides.

2. The massage sofa lifting mechanism according to claim 1, characterized in that: A limiting groove (3) is vertically provided on a side surface of the support plate (2) facing the center of the base (1); two limiting slide blocks (4) are vertically slidably connected to the inner side of the limiting groove (3); and the outer side walls of the limiting slide blocks (4) are fixedly connected to the side walls of the lifting plate (5).

3. The massage sofa lifting mechanism according to claim 1, characterized in that: The outer end of the support rod (701) passes through the vertical slot (201) and is fixedly connected to the handle (702).

4. The massage sofa lifting mechanism according to claim 1, characterized in that: Two limiting rods (12) are fixedly connected to the bottom of the top plate (8), and the lower ends of the limiting rods (12) penetrate the surface of the push plate (10) and are located below the push plate (10).

5. The massage sofa lifting mechanism according to claim 1, characterized in that: The top end of the top plate (8) is fixedly connected to a sofa body (13).

6. The massage sofa lifting mechanism according to claim 1, characterized in that: The return spring (6) is located on the inner side wall of the adjustment groove (501) on one side of the support groove (202), and the return spring (6) is always in a compressed state.

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