Vacuum compression process for upholstered furniture

Abstract

The invention discloses a vacuum compression process for upholstered furniture, and relates to the technical field of vacuum compression, and the vacuum compression process specifically comprises the following steps: step 1, placing the upholstered furniture into a packaging film; step 2, sealing; step 3, compressing; and 4, heat sealing and cutting. By arranging the air exhaust mechanism, air in a packaging film is exhausted through the air outlet during compression; after compression is completed, the pulling block is pushed, and the vacuum pump extracts air in the packaging film; the pressing plate moves upwards to be separated from the packaging film, the mounting column is detached from the bottom end of the exhaust pipe, the packaging film between the upholstered furniture and the mounting column is cut after being subjected to heat sealing, the size occupied by the packaging film is reduced, meanwhile, the mounting column is detached to facilitate follow-up reutilization, vacuum extraction operation is conveniently conducted after the upholstered furniture is compressed, and the production efficiency is improved. And residual air in the packaging film is reduced, the vacuum compression effect on the upholstered furniture is improved, and the mounting columns and the clamping plates can be reused.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum compression, in particular to a vacuum compression process for soft furniture. Background Art

[0002] Soft furniture mainly refers to furniture with sponge and fabric as the main body. Soft furniture mainly includes fabric furniture and leather furniture. Today, when people pay more and more attention to the quality of life, soft furniture is suitable for various styles of rooms because of its elegant colors and simple lines, showing its unique charm.

[0003] In order to facilitate the transportation of upholstered furniture, it is usually necessary to compress the upholstered furniture before packaging and transportation. During compression, the upholstered furniture is usually placed in a packaging film and then moved to a bottom plate. The hydraulic cylinder drives the pressing plate to move to compress the upholstered furniture, and then the opening of the packaging film is heat-sealed. However, after the upholstered furniture is squeezed, air is easily retained in the packaging film, thereby affecting the compression effect of the upholstered furniture. In order to achieve the purpose of improving the vacuum compression effect of upholstered furniture, a vacuum compression process for upholstered furniture is provided. Summary of the invention

[0004] The purpose of the present invention is to provide a vacuum compression process for upholstered furniture in order to achieve the purpose of improving the vacuum compression effect on upholstered furniture.

[0005] To achieve the above object, the present invention provides the following technical solution: a vacuum compression process for soft furniture, the specific steps are as follows: Step 1: Place the soft furniture into the packaging film; Step 2: Use a plastic heat sealing machine to seal the periphery of the packaging film; Step 3: Move the sealed soft furniture to the compression device for compression, and after the compression is completed, evacuate the air in the packaging film through the exhaust structure; Step 4: The soft furniture after vacuum compression is then passed through a plastic heat sealer and a cutting machine to heat seal and then cut the edges of the packaging film to reduce the volume of the compressed packaging film; The compression device used in the step three includes a base and a packaging film, the top of the base is fixedly connected to a limiting rod, the top of the limiting rod is fixedly connected to a top plate, the top of the top plate is installed with a hydraulic cylinder, the output end of the hydraulic cylinder is connected to a pressing plate, the limiting rod passes through the pressing plate, the packaging film is placed on the top of the base, and the air in the packaging film is discharged through an exhaust mechanism, the exhaust mechanism includes an exhaust pipe and a through hole, the through hole is opened on the outer wall of the packaging film, the exhaust pipe is arranged between the base and the top plate and passes through the pressing plate, the bottom end of the exhaust pipe is connected to a mounting column, the bottom end of the mounting column is fixedly connected to a mounting seat, a splint is arranged below the mounting seat, the top of the splint is fixedly connected to a connecting block, the bottom end of the mounting seat is opened with a connecting groove, and the exhaust pipe performs a suction operation through a suction mechanism.

[0006] As a further solution of the present invention: the exhaust mechanism also includes a mounting plate and a support ring, the mounting plate and the support ring are fixedly connected to the inner wall of the mounting column, the mounting plate is located above the support ring, a baffle is provided at the top of the support ring, the top of the baffle is fixedly connected to a vertical rod that runs through the mounting plate, a first spring is connected to the outer wall of the vertical rod between the mounting plate and the baffle, a positioning block extending to the inner cavity of the mounting column is slidably connected inside the mounting column, a second spring is connected between the positioning block and the mounting column, and a push frame extending from the mounting seat is slidably connected inside the mounting column.

[0007] As a further scheme of the present invention: the air extraction mechanism includes a fixed tube, the fixed tube, the fixed tube is fixedly connected to the bottom end of the top plate, the top plate is provided with a movable groove inside, the movable groove is provided with an air outlet, the top of the movable groove is located on one side of the air outlet and is fixedly connected to the air extraction pipe, the outer wall of the air extraction pipe is installed with a vacuum pump, the inner wall of the movable groove is slidably connected with a movable seat, the top of the movable seat is provided with a connecting groove, one end of the movable seat is fixedly connected with a pull rod, one end of the pull rod is fixedly connected with a pulling block, the outer wall of the mounting column is provided with an annular groove, the interior of the exhaust pipe is slidably connected with a reinforcement block extending to the inner cavity of the exhaust pipe, the outer wall of the reinforcement block is fixedly connected with an elastic sheet, and the interior of the exhaust pipe is located at the top of the reinforcement block and is slidably connected with a lower pressure frame.

[0008] As a further solution of the present invention: the outer wall of the connecting block is in contact with the inner wall of the through hole, and the connecting block is connected to the connecting groove by threads.

[0009] As a further solution of the present invention: the outer wall of the mounting column is fitted with the bottom end of the inner wall of the exhaust pipe, and the exhaust pipe is connected to the mounting column by threads.

[0010] As a further solution of the present invention: a first inclined surface is arranged at one end of the positioning block facing the baffle, a through groove is arranged on the outer wall of the positioning block, and the inner wall of the through groove is in contact with the outer wall of the pushing frame.

[0011] As a further solution of the present invention: the top end of the pushing frame is T-shaped, the top end of the positioning block is provided with a second inclined surface, and the top of the pushing frame contacts the second inclined surface.

[0012] As a further solution of the present invention: the inner wall of the movable groove is in contact with the outer wall of the movable seat.

[0013] As a further solution of the present invention: the inner wall of the exhaust pipe is fitted with the outer wall of the fixed pipe, the top of the reinforcement block is provided with a third inclined surface, the bottom end of the lower pressure frame is in contact with the third inclined surface, and the outer wall of one end of the reinforcement block is fitted with the inner wall of the annular groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the exhaust mechanism, first place the soft furniture and the plywood into the packaging film, then heat-seal the opening of the packaging film, extend one end of the connecting groove out of the through hole, place the soft furniture at the end away from the through hole, then thread the connecting block into the connecting groove, clamp the plywood and the mounting seat on the outer wall of the packaging film, then thread the mounting column to the bottom end of the exhaust pipe, so that the inner cavity of the packaging film is connected with the inner cavity of the exhaust pipe, and at the same time, the positioning block is separated from the baffle so that the baffle can move, and the air in the mounting column can only move in one direction, which is convenient for exhausting the air in the packaging film; 2. By setting up an exhaust mechanism, during compression, the air in the packaging film is discharged through the air outlet; when the compression is completed, the pulling block is pushed, and the vacuum pump extracts the air in the packaging film; the pressing plate moves upward to separate from the packaging film, and the mounting column is removed from the bottom end of the exhaust pipe. The packaging film between the soft furniture and the mounting column is heat-sealed and then cut to reduce the volume occupied by the packaging film. At the same time, the mounting column is removed for subsequent reuse, which is convenient for vacuum extraction after the soft furniture is compressed, thereby reducing the residual air in the packaging film, improving the vacuum compression effect of the soft furniture, and the mounting column and the plywood can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the installation of the installation column of the present invention; Figure 3 It is a schematic diagram of the installation of the splint of the present invention; Figure 4is a cross-sectional view of a mounting post of the present invention; Figure 5 It is a structural schematic diagram of the positioning block of the present invention; Figure 6 is a cross-sectional view of a top plate of the present invention; Figure 7 is a cross-sectional view of the movable seat of the present invention; Figure 8 It is a structural schematic diagram of the lower pressing frame of the present invention.

[0016] In the figure: 1, base; 2, limit rod; 3, top plate; 4, hydraulic cylinder; 5, pressure plate; 6, packaging film; 7, exhaust mechanism; 701, exhaust pipe; 702, mounting column; 703, mounting seat; 704, clamping plate; 705, connecting block; 706, connecting groove; 707, mounting plate; 708, supporting ring; 709, baffle; 710, vertical rod; 711, first spring; 712, positioning block; 713, second spring; 714, pushing frame; 715, through hole; 8, exhaust mechanism; 801, fixed pipe; 802, movable groove; 803, air outlet; 804, exhaust pipe; 805, vacuum pump; 806, movable seat; 807, connecting groove; 808, pull rod; 809, pulling block; 810, annular groove; 811, reinforcement block; 812, elastic sheet; 813, lower pressure frame. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0019] See also Figures 1 to 8 In the embodiment of the present invention, the vacuum compression process of soft furniture comprises the following specific steps: Step 1: Place the soft furniture into the packaging film 6; Step 2: Use a plastic heat sealing machine to seal the periphery of the packaging film 6; Step 3: Move the sealed soft furniture to the compression device for compression, and after the compression is completed, evacuate the packaging film 6 through the exhaust structure; Step 4: The soft furniture after vacuum compression is then passed through a plastic heat sealer and a cutting machine to heat seal the edges of the packaging film 6 and then cut to reduce the volume of the compressed packaging film 6.

[0020] Please refer to Figures 1 to 5The compression device used in step three includes a base 1 and a packaging film 6. The top of the base 1 is fixedly connected to a limiting rod 2, and the top of the limiting rod 2 is fixedly connected to a top plate 3. A hydraulic cylinder 4 is installed on the top of the top plate 3. The output end of the hydraulic cylinder 4 is connected to a pressing plate 5. The limiting rod 2 runs through the pressing plate 5. The packaging film 6 is placed on the top of the base 1. The air in the packaging film 6 is discharged through an exhaust mechanism 7. The exhaust mechanism 7 includes an exhaust pipe 701 and a through hole 715. The through hole 715 is opened on the outer wall of the packaging film 6. The exhaust pipe 701 is arranged between the base 1 and the top plate 3 and runs through the pressing plate 5. The bottom end of the exhaust pipe 701 is connected to a mounting column 702. The bottom end of the mounting column 702 is fixedly connected to a mounting seat 703. A clamping plate 704 is arranged below the mounting seat 703. The top of the clamping plate 704 is fixedly connected to a connecting block 705. A connecting groove 706 is provided at the bottom end of the mounting seat 703, and the exhaust pipe 701 performs exhaust operation through the exhaust mechanism 8. The exhaust mechanism 7 also includes a mounting plate 707 and a support ring 708. The mounting plate 707 and the support ring 708 are fixedly connected to the inner wall of the mounting column 702. The mounting plate 707 is located above the support ring 708. A baffle plate 709 is provided at the top of the support ring 708. The top of the baffle plate 709 is fixedly connected to a vertical rod 710 that runs through the mounting plate 707. A first spring 711 is connected to the outer wall of the vertical rod 710 between the mounting plate 707 and the baffle plate 709. The interior of the mounting column 702 is slidably connected to a positioning block 712 extending to the inner cavity of the mounting column 702. A second spring 713 is connected between the positioning block 712 and the mounting column 702. The interior of the mounting column 702 is slidably connected to a push frame 714 extending from the mounting seat 703.

[0021] In this embodiment: before compression, the soft furniture and the plywood 704 are first placed into the packaging film 6, and then the opening of the packaging film 6 is heat-sealed, and one end of the connecting groove 706 extends out of the through hole 715, and the soft furniture is placed at the end away from the through hole 715, and then the connecting block 705 is threadedly connected into the connecting groove 706, and the plywood 704 and the mounting seat 703 are clamped on the outer wall of the packaging film 6, and then the mounting column 702 is threadedly connected to the bottom end of the exhaust pipe 701, so that the inner cavity of the packaging film 6 is connected to the inner cavity of the exhaust pipe 701, and at the same time, when the exhaust pipe 701 is connected to the mounting column 702, the exhaust The air pipe 701 contacts the pushing frame 714, pushing the pushing frame 714 to move, and the displacement of the pushing frame 714 pushes the positioning block 712 to move, causing the second spring 713 to be squeezed, and the positioning block 712 is separated from the baffle 709, so that the baffle 709 can move. The baffle 709 is fitted with the support ring 708 under the elastic force of the first spring 711, and the inner cavity of the mounting column 702 is blocked, so that the air in the mounting column 702 can only move in one direction. When the air in the inner cavity of the exhaust pipe 701 is drawn away, the air in the packaging film 6 can push the baffle 709 to move, pass through the mounting column 702 and enter the exhaust pipe 701; When the exhaust pipe 701 is separated from the mounting column 702, the exhaust pipe 701 is separated from the pushing frame 714, and the positioning block 712 is displaced by the elastic force of the second spring 713 to contact the top of the baffle 709, thereby fixing the baffle 709, thereby preventing outside air from entering the packaging film 6 through the mounting column 702, making it easier to exhaust the air in the packaging film 6.

[0022] Please refer to Figures 6 to 8 The exhaust mechanism 8 includes a fixed pipe 801, the fixed pipe 801 is fixedly connected to the bottom end of the top plate 3, a movable groove 802 is provided inside the top plate 3, the movable groove 802 is provided with an air outlet 803, the top of the movable groove 802 is located on one side of the air outlet 803 and is fixedly connected to an exhaust pipe 804, a vacuum pump 805 is installed on the outer wall of the exhaust pipe 804, the inner wall of the movable groove 802 is slidably connected to a movable seat 806, the top of the movable seat 806 A connecting groove 807 is provided, one end of the movable seat 806 is fixedly connected to a pull rod 808, one end of the pull rod 808 is fixedly connected to a pulling block 809, an annular groove 810 is provided on the outer wall of the mounting column 702, the interior of the exhaust pipe 701 is slidably connected to a reinforcement block 811 extending to the inner cavity of the exhaust pipe 701, the outer wall of the reinforcement block 811 is fixedly connected to an elastic sheet 812, and the interior of the exhaust pipe 701 is slidably connected to a lower pressure frame 813 located at the top of the reinforcement block 811.

[0023] In this embodiment, the operation of the hydraulic cylinder 4 drives the pressing plate 5 to move downward for compression. When compression is performed, the connecting groove 807 is located at the bottom end of the air outlet 803, and the air in the packaging film 6 enters the exhaust pipe 701 through the mounting column 702, and then enters the movable seat 806 through the fixed pipe 801, and finally is discharged through the air outlet 803. When the compression is completed, the pulling block 809 is pushed to move, and the displacement of the pulling block 809 drives the pull rod 808 to move, and the displacement of the pull rod 808 drives the movable seat 806 to slide in the movable groove 802, so that the connecting groove 807 moves to the bottom end of the exhaust pipe 804, the air outlet 803 is closed, and the vacuum pump 805 is started. 5 is operated to extract the air in the packaging film 6 through the exhaust pipe 804. After the extraction is completed, the pressing plate 5 moves upward and separates from the packaging film 6, pushing the exhaust pipe 701 to move upward along the fixed pipe 801. Then, the installation column 702 is removed from the bottom end of the exhaust pipe 701, and the packaging film 6 between the soft furniture and the installation column 702 is heat-sealed and then cut to reduce the volume occupied by the packaging film 6. At the same time, the installation column 702 is removed to facilitate subsequent reuse, so that the vacuum extraction operation can be performed after the soft furniture is compressed, reducing the residual air in the packaging film 6, improving the vacuum compression effect of the soft furniture, and the installation column 702 and the clamping plate 704 can be reused; When the mounting column 702 is disassembled and assembled, the exhaust pipe 701 is pushed to move upward along the fixed pipe 801, and the bottom end of the fixed pipe 801 contacts the lower pressure frame 813, pushing the lower pressure frame 813 to move. The displacement of the lower pressure frame 813 pushes the reinforcement block 811 to move, and the reinforcement block 811 moves into the exhaust pipe 701. The displacement of the reinforcement block 811 causes compression on the elastic sheet 812, and the mounting column 702 can be installed and disassembled at this time. When the exhaust pipe 701 moves downward, the fixed pipe 801 is separated from the lower pressure frame 813, and the reinforcement block 811 is engaged into the annular groove 810 under the elastic force of the elastic sheet 812, thereby fixing the mounting column 702, so as to prevent the mounting column 702 from loosening with the exhaust pipe 701 during use.

[0024] Please refer to Figure 3 The outer wall of the connecting block 705 fits with the inner wall of the through hole 715, and the connecting block 705 is connected to the connecting groove 706 by threads.

[0025] In this embodiment: one end of the connecting groove 706 is extended out of the through hole 715, and the soft furniture is placed at the end away from the through hole 715, and then the connecting block 705 is threaded into the connecting groove 706, and the clamping plate 704 and the mounting seat 703 are clamped on the outer wall of the packaging film 6.

[0026] Please refer to Figure 2 The outer wall of the mounting column 702 fits with the bottom end of the inner wall of the exhaust pipe 701, and the exhaust pipe 701 is connected to the mounting column 702 by threads.

[0027] In this embodiment, the mounting post 702 is threadedly connected to the bottom end of the exhaust pipe 701 , so that the inner cavity of the packaging film 6 is communicated with the inner cavity of the exhaust pipe 701 .

[0028] Please refer to Figures 4 to 5 A first inclined surface is provided at one end of the positioning block 712 facing the baffle 709, a through groove is provided on the outer wall of the positioning block 712, the inner wall of the through groove is in contact with the outer wall of the pushing frame 714, the top of the pushing frame 714 is T-shaped, a second inclined surface is provided on the top of the positioning block 712, and the top of the pushing frame 714 is in contact with the second inclined surface.

[0029] In this embodiment: when the exhaust pipe 701 is connected to the mounting column 702, the exhaust pipe 701 contacts the pushing frame 714, pushing the pushing frame 714 to move, and the displacement of the pushing frame 714 pushes the positioning block 712 to move, causing the second spring 713 to be squeezed, and the positioning block 712 is separated from the baffle 709, so that the baffle 709 can move.

[0030] Please refer to Figure 6 , the inner wall of the movable groove 802 is in contact with the outer wall of the movable seat 806 .

[0031] In this embodiment: when the compression is completed, the pulling block 809 is pushed to move, and the displacement of the pulling block 809 drives the pull rod 808 to move, and the displacement of the pull rod 808 drives the movable seat 806 to slide in the movable groove 802, so that the connecting groove 807 moves to the bottom end of the exhaust pipe 804, and the air outlet 803 is closed.

[0032] Please refer to Figure 8 The inner wall of the exhaust pipe 701 fits with the outer wall of the fixed pipe 801 , the top of the reinforcement block 811 is provided with a third inclined surface, the bottom end of the lower pressure frame 813 contacts the third inclined surface, and the outer wall of one end of the reinforcement block 811 fits with the inner wall of the annular groove 810 .

[0033] In this embodiment: when the installation column 702 is disassembled and assembled, the exhaust pipe 701 is pushed to move upward along the fixed pipe 801, and the bottom end of the fixed pipe 801 contacts the lower pressure frame 813, pushing the lower pressure frame 813 to move. The displacement of the lower pressure frame 813 pushes the reinforcement block 811 to move, and the reinforcement block 811 moves into the exhaust pipe 701. The displacement of the reinforcement block 811 squeezes the elastic sheet 812, and the installation column 702 can be installed and disassembled at this time. When the exhaust pipe 701 moves downward, the fixed pipe 801 is separated from the lower pressure frame 813, and the reinforcement block 811 is engaged into the annular groove 810 under the elastic force of the elastic sheet 812 to fix the installation column 702.

[0034] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. The vacuum compression process of soft furniture is characterized by: The specific steps are as follows: Step 1: Place the soft furniture into the packaging film (6); Step 2: Using a plastic heat sealing machine to seal the periphery of the packaging film (6); Step 3: Move the sealed soft furniture to the compression device for compression, and after the compression is completed, evacuate the packaging film (6) through the exhaust structure; Step 4: The soft furniture after vacuum compression is then heat-sealed and cut on the edge of the packaging film (6) by a plastic heat-sealing machine and a cutting machine to reduce the volume of the packaging film (6) after compression; The compression device used in step 3 comprises a base (1) and a packaging film (6), the top of the base (1) is fixedly connected to a limiting rod (2), the top of the limiting rod (2) is fixedly connected to a top plate (3), the top of the top plate (3) is installed with a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) is connected to a pressing plate (5), the limiting rod (2) passes through the pressing plate (5), the packaging film (6) is placed on the top of the base (1), the air in the packaging film (6) is discharged through an exhaust mechanism (7), the exhaust mechanism (7) comprises an exhaust pipe (701) and a through hole (715), the A through hole (715) is provided on the outer wall of the packaging film (6); the exhaust pipe (701) is arranged between the base (1) and the top plate (3) and passes through the pressure plate (5); the bottom end of the exhaust pipe (701) is connected to a mounting column (702); the bottom end of the mounting column (702) is fixedly connected to a mounting seat (703); a clamping plate (704) is provided below the mounting seat (703); the top end of the clamping plate (704) is fixedly connected to a connecting block (705); a connecting groove (706) is provided at the bottom end of the mounting seat (703); and the exhaust pipe (701) performs a vacuum operation through a vacuum mechanism (8).

2. The vacuum compression process for upholstered furniture according to claim 1, characterized in that: The exhaust mechanism (7) further comprises a mounting plate (707) and a support ring (708), wherein the mounting plate (707) and the support ring (708) are fixedly connected to the inner wall of the mounting column (702), the mounting plate (707) is located above the support ring (708), a baffle (709) is provided at the top end of the support ring (708), a vertical rod (710) penetrating the mounting plate (707) is fixedly connected to the top end of the baffle (709), and the mounting plate (707) is provided with a vertical rod (710) penetrating the mounting plate (707). A first spring (711) is connected to the outer wall of the vertical rod (710) between the plate (707) and the baffle (709); a positioning block (712) extending into the inner cavity of the mounting column (702) is slidably connected inside the mounting column (702); a second spring (713) is connected between the positioning block (712) and the mounting column (702); and a pushing frame (714) extending from the mounting seat (703) is slidably connected inside the mounting column (702).

3. The vacuum compression process for upholstered furniture according to claim 2, characterized in that: The exhaust mechanism (8) comprises a fixed pipe (801), the fixed pipe (801) being fixedly connected to the bottom end of the top plate (3), a movable groove (802) being provided inside the top plate (3), an air outlet (803) being provided in the movable groove (802), an exhaust pipe (804) being fixedly connected to the top end of the movable groove (802) located on one side of the air outlet (803), a vacuum pump (805) being installed on the outer wall of the exhaust pipe (804), a movable seat (806) being slidably connected to the inner wall of the movable groove (802), and the movable seat (80 6) is provided with a connecting groove (807), one end of the movable seat (806) is fixedly connected to a pull rod (808), one end of the pull rod (808) is fixedly connected to a pulling block (809), an annular groove (810) is provided on the outer wall of the mounting column (702), the interior of the exhaust pipe (701) is slidably connected to a reinforcement block (811) extending to the inner cavity of the exhaust pipe (701), the outer wall of the reinforcement block (811) is fixedly connected to an elastic sheet (812), and the interior of the exhaust pipe (701) is slidably connected to a lower pressure frame (813) located at the top of the reinforcement block (811).

4. The vacuum compression process for upholstered furniture according to claim 2, characterized in that: The outer wall of the connection block (705) fits the inner wall of the through hole (715), and the connection block (705) is connected to the connection groove (706) via threads.

5. The vacuum compression process for upholstered furniture according to claim 2, characterized in that: The outer wall of the mounting column (702) fits into the bottom end of the inner wall of the exhaust pipe (701), and the exhaust pipe (701) and the mounting column (702) are connected via threads.

6. The vacuum compression process for upholstered furniture according to claim 2, characterized in that: A first inclined surface is provided at one end of the positioning block (712) facing the baffle (709), and a through groove is provided on the outer wall of the positioning block (712), wherein the inner wall of the through groove fits the outer wall of the pushing frame (714).

7. The vacuum compression process for upholstered furniture according to claim 2, characterized in that: The top end of the pushing frame (714) is T-shaped, the top end of the positioning block (712) is provided with a second inclined surface, and the top of the pushing frame (714) is in contact with the second inclined surface.

8. The vacuum compression process for upholstered furniture according to claim 3, characterized in that: The inner wall of the movable groove (802) fits in contact with the outer wall of the movable seat (806).

9. The vacuum compression process for upholstered furniture according to claim 3, characterized in that: The inner wall of the exhaust pipe (701) is in contact with the outer wall of the fixed pipe (801), the top end of the reinforcing block (811) is provided with a third inclined surface, the bottom end of the lower pressure frame (813) is in contact with the third inclined surface, and the outer wall of one end of the reinforcing block (811) is in contact with the inner wall of the annular groove (810).

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