Vacuum compression machine for cushion packaging

By designing a vacuum compressor for seat cushion packaging, and utilizing structures such as guide columns and return springs, the uniform compression and air expulsion of the seat cushion are achieved, solving the problems of wrinkles and air bubbles in seat cushion vacuum packaging and improving the sealing effect.

CN224324264UActive Publication Date: 2026-06-05NINGBO HAOSEN DAILY NECESSITIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HAOSEN DAILY NECESSITIES CO LTD
Filing Date
2025-05-16
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the prior art, when the cushion is vacuum-packed, the internal air is not expelled in advance, resulting in uneven adhesion between the surface and the packaging bag, causing wrinkles and bubbles, which affects the integrity of the seal.

Method used

A vacuum compressor for cushion packaging was designed. Through structures such as guide columns, return springs, and compression slots, it achieves uniform compression of the cushion and gradual air discharge. The elastic potential energy of the return spring is used to maintain the continuity of the equipment.

Benefits of technology

It effectively eliminates wrinkles and air bubbles, ensuring the sealing integrity and uniformity of the seat cushion vacuum packaging, and improving the working efficiency of the sealing machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of vacuum extraction compressors for cushion packaging, it is related to packaging vacuum extraction technical field, including working baseplate, the working baseplate top surface both sides are uniformly connected with multiple guide posts, and multiple guide posts outer wall are uniformly sleeved with reset spring, the working baseplate top surface center is equipped with compression slot, and working baseplate top center is slidably connected with working top plate, the working top plate bottom surface center is fixedly connected with compression workpiece, the guide post inside top end is fixedly connected with reinforcing rod, when the utility model is compressed workpiece continuous depression, the airtight space formed by its outer wall and compression slot applies uniform pressure to cushion, gradually bag air is gently extruded from compression slot opening, in this process, the airtight space formed by compression workpiece and compression slot gradually extrudes bag air, wrinkle and bubble generated due to exhaust insufficiency are eliminated as far as possible, after compression to groove bottom, vacuum extraction work can be completed in cooperation with sealing machine.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging technology, specifically a vacuum compressor for cushion packaging. Background Technology

[0002] A seat cushion is a soft pad placed on the surface of a seat, primarily used to improve comfort when sitting for extended periods. It is typically filled with soft, elastic material, and the outer layer is often made of breathable and durable fabric. It conforms to the body's curves, distributing pressure on the hips and lower back. Suitable for office chairs, car seats, or home sofas, its design balances support and softness, alleviating discomfort from hard seats and reducing fatigue caused by prolonged sitting, helping to maintain a natural sitting posture.

[0003] Currently, most household users use direct-connect sealing machines for vacuum packaging of seat cushions. However, because the air inside the seat cushion is not manually removed before vacuuming, there are many irregular wrinkles between the surface of the seat cushion and the packaging bag. Residual air bubbles prevent the vacuum bag from fitting the product contour evenly, and some areas experience local bulging due to uneven pressure distribution, affecting the integrity of the seal. In view of this, we provide a vacuum compressor for seat cushion packaging. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a vacuum compressor for cushion packaging.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum compressor for cushion packaging, comprising a working base plate, multiple guide columns fixedly connected to both sides of the top surface of the working base plate, and a return spring sleeved on the outer wall of each guide column; a compression groove is formed at the center of the top surface of the working base plate, and a working top plate is slidably connected to the center of the top of the working base plate; a compression workpiece is fixedly connected to the center of the bottom surface of the working top plate; a reinforcing rod is fixedly connected to the top of the guide columns; a metal crossbar is fixedly connected to the center of the inside of the working top plate, and multiple sliding components are provided at both ends of the outer wall of the metal crossbar; multiple pressing components are rotatably connected to both sides of the top surface of the working base plate, and a limit groove is formed on the outer wall of each pressing component; and a handle is fixedly connected between the multiple pressing components.

[0006] As described above, the top of the outer wall of the guide column intersects with one side of the inner side of the working top plate, and the top of the outer wall of the guide column is slidably connected to one side of the inner side of the working top plate.

[0007] As described above, the outer walls at both ends of the reinforcing rod are fixedly connected to the inner top of multiple guide columns, and the bottom end of the outer wall of the reinforcing rod abuts against one side of the top surface of the working top plate.

[0008] As described above, the bottom outer wall of the reset spring abuts against the bottom of the outer wall of the guide post, and the top outer wall of the reset spring abuts against one side of the bottom surface of the working top plate.

[0009] As mentioned above, an exhaust port is provided on one side of the compression groove, and the inner wall shape of the compression groove is consistent with the outer wall of the compressed workpiece.

[0010] As described above, both ends of the outer wall of the metal crossbar are respectively connected through to one end of the interior of a plurality of sliding components, and both ends of the outer wall of the metal crossbar are respectively rotatably connected to one end of the interior of a plurality of sliding components.

[0011] As described above, the outer wall of the sliding component is tightly fitted to one end of the inner wall of the limiting groove, and the outer wall of the sliding component is slidably connected to the inner wall of the limiting groove.

[0012] Compared with existing technologies, this vacuum compressor for cushion packaging has the following advantages:

[0013] I. This utility model involves placing a vacuum bag containing a seat cushion in a compression groove, with the opening of the vacuum bag and the opening of the compression groove facing the same side. Pressing the handle downwards drives the pressing component to rotate, guiding the working top plate vertically downwards along the guide column through the limiting groove. As the compressed workpiece continues to press down, the sealed space formed by its outer wall and the compression groove applies uniform pressure to the seat cushion, gradually squeezing the air inside the bag out from the opening of the compression groove. During this process, the sealed space formed by the compressed workpiece and the compression groove gradually squeezes out the air inside the bag, minimizing wrinkles and air bubbles caused by insufficient exhaust. After compression to the bottom of the groove, it can be used with a sealing machine to complete the vacuuming process.

[0014] II. This utility model utilizes the elastic potential energy stored in the return spring itself to automatically reset the working top plate after the pressure is released, so that it quickly returns to its initial position, providing a ready state for the next compression operation, while maintaining the continuity of the equipment's continuous operation.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side perspective view of the present invention.

[0018] Figure 3 This is a partial three-dimensional structural diagram of the metal crossbar of this utility model;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the compression groove of this utility model;

[0020] Figure 5 This is a partial three-dimensional structural diagram of the reinforcing rod of this utility model.

[0021] In the diagram: 1. Working base plate; 101. Compression groove; 2. Guide column; 201. Return spring; 202. Working top plate; 203. Compressed workpiece; 204. Reinforcing rod; 3. Metal crossbar; 301. Sliding assembly; 302. Pressing assembly; 303. Limiting groove; 304. Handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-5 As shown, this utility model provides a technical solution: a vacuum compressor for cushion packaging, including a working base plate 1, multiple guide columns 2 are fixedly connected to both sides of the top surface of the working base plate 1, and a return spring 201 is sleeved on the outer wall of each guide column 2. A compression groove 101 is opened in the center of the top surface of the working base plate 1, and a working top plate 202 is slidably connected to the top center of the top of the working base plate 1. A compression workpiece 203 is fixedly connected to the center of the bottom surface of the working top plate 202. A reinforcing rod 204 is fixedly connected to the top inside of the guide column 2. A metal crossbar 3 is fixedly connected to the center inside the working top plate 202, and multiple sliding components 301 are provided at both ends of the outer wall of the metal crossbar 3. Multiple pressing components 302 are rotatably connected to both sides of the top surface of the working base plate 1, and a limit groove 303 is opened on the outer wall of each pressing component 302. A handle 304 is fixedly connected between the multiple pressing components 302.

[0024] When the compressed workpiece 203 continues to press down, the sealed space formed by its outer wall and the compression groove 101 applies uniform pressure to the seat cushion, gradually squeezing the air in the bag out from the opening of the compression groove 101. During this process, the sealed space formed by the compressed workpiece 203 and the compression groove 101 gradually squeezes out the air in the bag, eliminating wrinkles and bubbles caused by insufficient exhaust as much as possible.

[0025] like Figure 1 , Figure 2 and Figure 5As shown, the top of the outer wall of the guide column 2 intersects with one side of the inner side of the working top plate 202, and the top of the outer wall of the guide column 2 is slidably connected to one side of the inner side of the working top plate 202.

[0026] By passing multiple guide posts 2 through one side of the working top plate 202, the stability of the working top plate 202 during vertical displacement can be ensured.

[0027] like Figure 5 As shown, the outer walls at both ends of the reinforcing rod 204 are fixedly connected to the inner top of multiple guide columns 2, and the bottom end of the outer wall of the reinforcing rod 204 abuts against one side of the top surface of the working top plate 202.

[0028] When the two ends of the reinforcing rod 204 are fixedly connected to the interior of multiple guide columns 2, the reinforcing rod 204 can be used to limit the maximum height of the working top plate 202 to move upward, thus preventing it from detaching from the guide columns 2.

[0029] like Figure 2 As shown, the bottom outer wall of the return spring 201 abuts against the bottom of the outer wall of the guide post 2, and the top outer wall of the return spring 201 abuts against one side of the bottom surface of the working top plate 202.

[0030] The return spring 201 can utilize its stored elastic potential energy during compression to automatically reset the working top plate 202 after the pressure is released, allowing it to quickly return to its initial position.

[0031] like Figure 4 As shown, an exhaust port is provided on one side of the compression groove 101, and the inner wall shape of the compression groove 101 is consistent with the outer wall of the compressed workpiece 203.

[0032] By setting an exhaust port on one side of the compression groove 101, when the compressed workpiece 203 performs a pressing action, its outer wall and the inner wall of the compression groove 101 force the air in the bag to be gradually discharged along the opening direction.

[0033] like Figure 3 As shown, the two ends of the outer wall of the metal crossbar 3 are respectively connected to one end of the interior of multiple sliding components 301, and the two ends of the outer wall of the metal crossbar 3 are respectively rotatably connected to one end of the interior of multiple sliding components 301.

[0034] The through-rotational connection between the metal crossbar 3 and the sliding component 301 can form a stable multi-support linkage structure. During the pressing of the handle 304, the sliding component 301 can transmit the downward pressure to the metal crossbar 3 and the working top plate 202 through rotation.

[0035] like Figure 2 As shown, the outer wall of the sliding component 301 is tightly fitted to one end of the inner wall of the limiting groove 303, and the outer wall of the sliding component 301 is slidably connected to the inner wall of the limiting groove 303.

[0036] The sliding component 301 and the limiting groove 303 form a constraint on the working top plate 202 through the contact surface. When the handle 304 presses down to drive the pressing component 302 to rotate, the working top plate 202 can be guided to move vertically downward along the guide column 2 through the limiting groove 303.

[0037] Working principle: After multiple guide posts 2 pass through one side of the working top plate 202, the stability of the working top plate 202 during vertical displacement can be ensured. When the two ends of the reinforcing rod 204 are fixedly connected to the interior of the multiple guide posts 2, the reinforcing rod 204 can be used to limit the maximum height of the working top plate 202, preventing it from detaching from the guide posts 2. The return spring 201 can use its stored elastic potential energy during compression to automatically return the working top plate 202 to its initial position after the pressure is released, allowing it to quickly return to its initial position. By setting an exhaust port on one side of the compression slot 101, when the workpiece 203 is compressed, the exhaust port can be opened. During operation, the outer wall of the bag and the inner wall of the compression groove 101 force the air inside the bag to gradually be discharged along the opening direction. The through-rotation connection between the metal crossbar 3 and the sliding component 301 can form a stable multi-support linkage structure. During the pressing of the handle 304, the sliding component 301 can transmit the downward pressure to the metal crossbar 3 and the working top plate 202 through the rotation action. The sliding component 301 and the limiting groove 303 form a constraint on the working top plate 202 through the contact surface cooperation. When the handle 304 presses down to drive the pressing component 302 to rotate, the working top plate 202 can be guided to move vertically downward along the guide column 2 through the limiting groove 303.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum compressor for cushion packaging, comprising a working base plate (1), characterized in that: Multiple guide posts (2) are fixedly connected to both sides of the top surface of the working base plate (1), and a return spring (201) is sleeved on the outer wall of each guide post (2). A compression groove (101) is opened in the center of the top surface of the working base plate (1), and a working top plate (202) is slidably connected to the center of the top of the working base plate (1). A compression workpiece (203) is fixedly connected to the center of the bottom surface of the working top plate (202). A reinforcing rod (204) is fixedly connected to the top of the guide post (2). A metal crossbar (3) is fixedly connected to the center of the inside of the working top plate (202), and multiple sliding components (301) are provided at both ends of the outer wall of the metal crossbar (3). Multiple pressing components (302) are rotatably connected to both sides of the top surface of the working base plate (1), and a limit groove (303) is opened on the outer wall of each pressing component (302). A handle (304) is fixedly connected between the multiple pressing components (302).

2. The vacuum compressor for cushion packaging according to claim 1, characterized in that: The top of the outer wall of the guide column (2) intersects with one side of the inner wall of the working top plate (202), and the top of the outer wall of the guide column (2) is slidably connected to one side of the inner wall of the working top plate (202).

3. A vacuum compressor for cushion packaging according to claim 1, characterized in that: The outer walls at both ends of the reinforcing rod (204) are fixedly connected to the top of the inner ends of multiple guide columns (2), and the bottom end of the outer wall of the reinforcing rod (204) abuts against one side of the top surface of the working top plate (202).

4. A vacuum compressor for cushion packaging according to claim 1, characterized in that: The bottom outer wall of the reset spring (201) abuts against the bottom of the outer wall of the guide post (2), and the top outer wall of the reset spring (201) abuts against one side of the bottom surface of the working top plate (202).

5. A vacuum compressor for cushion packaging according to claim 1, characterized in that: The compression slot (101) has an exhaust port on one side, and the inner wall shape of the compression slot (101) is consistent with the outer wall of the compressed workpiece (203).

6. A vacuum compressor for cushion packaging according to claim 1, characterized in that: The two ends of the outer wall of the metal crossbar (3) are respectively connected to one end of the interior of a plurality of sliding components (301), and the two ends of the outer wall of the metal crossbar (3) are respectively rotatably connected to one end of the interior of a plurality of sliding components (301).

7. A vacuum compressor for cushion packaging according to claim 6, characterized in that: The outer wall of the sliding component (301) is tightly fitted to one end of the inner wall of the limiting groove (303), and the outer wall of the sliding component (301) is slidably connected to the inner wall of the limiting groove (303).