Air suction filtering control assembly
By setting multiple cavities and switchable connecting sealing plates inside the suction filter box, and using the first lifting cylinder to control the opening and closing of the suction platform, the problems of complex structure and space occupation in the prior art are solved, realizing the integration of rapid suction control and filtration functions, improving suction efficiency and saving costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-03
AI Technical Summary
The existing suction switching device occupies the space under the workbench, affects the layout of other equipment, and has an insufficiently simple structure. Furthermore, it cannot quickly control the switching on and off of the suction platform while the fan is running.
The system employs a suction filter control component. By setting multiple cavities and a sealing plate with switchable connection states inside the suction filter box, the first lifting cylinder drives the sealing plate to move up and down, controlling the switch of the suction platform, and integrating the filtration function into the suction filter box.
It enables rapid control of the suction platform's on/off state without stopping the fan, simplifying the structure, saving installation space and equipment costs, and improving suction efficiency.
Smart Images

Figure CN224077694U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sewing equipment technology, specifically a suction and filtration control component. Background Technology
[0002] Industrial template sewing machines typically have a suction platform on the worktable for quickly fixing or folding fabric. This platform is connected to the suction unit via suction ducts and a suction switching device. Considering the lag between the suction unit starting and the suction platform generating suction, the suction unit is normally kept running, and the suction platform's opening and closing are controlled by switching the air valve on the suction switching device.
[0003] The current suction switching device consists of a cavity divided into three chambers. The first chamber is connected to the suction platform, the second chamber is connected to the outside, and the third chamber is connected to the suction device via a suction duct. Air valves are installed between the first and second chambers and the third chamber, each controlled by an independent cylinder. During operation, one valve opens while the other closes, ensuring that only one of the first or second chambers is connected to the third chamber. However, the existing suction switching device occupies space under the workbench, affecting the arrangement of other equipment, and its dual-cylinder and valve structure is not sufficiently simple. Summary of the Invention
[0004] This utility model addresses the aforementioned technical problems by providing a suction and filtration control component that can quickly control the suction of the suction platform without stopping the fan, thereby improving suction efficiency.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a suction filter control component, including a suction filter box, which is divided into a first cavity, a second cavity and a third cavity by a first partition and a second partition; the box corresponding to the first cavity is provided with a first air inlet communicating with the air hole of the suction platform, the box corresponding to the second cavity is hollow and communicates with the outside, and the box corresponding to the third cavity is provided with a suction port communicating with the fan; the first partition is provided with a first air inlet hole communicating with the first cavity and the third cavity, and the second partition is provided with a second air inlet hole communicating with the first cavity and the second cavity; a sealing plate that can move up and down is provided in the first cavity, and the sealing plate is installed on the drive rod of the first lifting cylinder.
[0006] To optimize the above technical solution, the present invention also includes the following improved technical solutions.
[0007] The second air inlet corresponds vertically to the first air inlet, and a sealing plate is positioned above the second partition. The first air inlet and the first cavity, as well as the first cavity and the second cavity, are connected via the sealing plate. This invention controls the start and stop of the suction device through multiple cavities within the suction filter box and a sealing plate that allows for switching between connected states, enabling rapid control of the suction platform's operation without stopping the fan.
[0008] The aforementioned third cavity is used to hold the filter sponge; a third partition is provided inside the third cavity, installed on one side of the first partition, dividing the third cavity into two spaces for holding the filter sponge. This utility model integrates the suction switch control function and the filtration function into the suction filter box, simplifying the structure, saving installation space, and reducing equipment costs.
[0009] The cylinder body of the first lifting cylinder is vertically installed at the bottom of the air intake filter box, and the drive rod of the first lifting cylinder is set upward; the first lifting cylinder is controlled by a foot switch.
[0010] Compared with the prior art, the suction filter control component of this utility model drives the sealing plate to move up and down through the first lifting cylinder, adjusts the connection state of multiple cavities in the suction filter box, and thus controls the air inlet position of the suction filter box, thereby realizing the control of the suction switch on the suction platform. It has the advantages of novel structure, small size and cost saving. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of this embodiment.
[0012] Figure 2 yes Figure 1 An explosion diagram.
[0013] Figure 3 This is a three-dimensional structural diagram of the air intake and filtration control component.
[0014] Figure 4 This is a front view of the air intake and filtration control component. Detailed Implementation
[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0016] Figures 1 to 4 The diagram shown is a structural schematic of this utility model.
[0017] The attached diagrams are labeled as follows: suction platform 1, air vent 1a, mounting bracket 2, fan 3, pulley 4, mesh plate 5, first air duct 6, second air duct 7, first branch pipe 8, second branch pipe 9, elbow 10, suction filter box 11, first cavity 11a, second cavity 11b, third cavity 11c, air inlet 11d, suction port 11e, first partition 12, first air inlet 12a, second partition 13, second air inlet 13a, sealing plate 14, first lifting cylinder 15, foot switch 16, third partition 17.
[0018] like Figures 1 to 2 As shown, this utility model discloses an independent suction device, including a suction platform 1, a mounting frame 2 below the suction platform 1, a fan 3 and a suction filter control assembly mounted on the mounting frame 2, and casters 4 mounted on the bottom of the mounting frame 2. The independent suction device can move quickly and be assembled with a template machine. The suction platform 1 of the independent suction device remains flush with the worktable of the template machine. The independent suction device can be applied to different scenarios, increasing its applicability.
[0019] The suction platform 1 has air vents 1a, and a mesh plate 5 with multiple neatly arranged mesh holes is provided above the air vents 1a. The air vents 1a are connected to the suction filter control component through the first air duct 6, and the suction filter control component is connected to the fan 3 through the second air duct 7. The suction platform 1 has two air vents 1a, which are respectively connected to the first branch pipe 8 and the second branch pipe 9. The first branch pipe 8 and the second branch pipe 9 are respectively connected to the first air duct 6 through elbows 10.
[0020] The air force generated by the fan 3 passes through the second air duct 7, the air suction filter control component, and the first air duct 6 in sequence, and then is split to the first branch pipe 8 and the second branch pipe 9. Finally, it acts on the two air holes 1a on the air suction platform 1, so that negative pressure is formed at the air holes 1a and thus adsorbs the fabric on the mesh plate 5.
[0021] like Figures 3 to 4 As shown, the suction filter control assembly includes a suction filter box 11. The suction filter box 11 contains a first partition 12 and a second partition 13, which divide the suction filter box 11 into a first cavity 11a, a second cavity 11b, and a third cavity 11c. The first cavity 11a has an air inlet 11d communicating with the air hole 1a of the suction platform 1. The second cavity 11b is hollow and communicates with the outside. The third cavity 11c has an air inlet 11e communicating with the fan 3. The first partition 12 has a first air inlet 12a connecting the first cavity 11a and the third cavity 11c. The second partition 13 has a second air inlet 13a connecting the first cavity 11a and the second cavity 11b. The first cavity 11a contains a sealing plate 14 that can move up and down, and the sealing plate 14 is mounted on the drive rod of the first lifting cylinder 15.
[0022] The second air inlet 13a is vertically aligned with the air inlet 11d. A sealing plate 14 is positioned above the second partition 13. The air inlet 11d and the first cavity 11a, as well as the first cavity 11a and the second cavity 11b, are connected via the sealing plate 14. This invention controls the start and stop of the suction device through multiple cavities within the suction filter box 11 and the switchable sealing plate 14, enabling rapid control of the suction platform 1's operation without stopping the fan 3.
[0023] The cylinder body of the first lifting cylinder 15 is vertically installed at the bottom of the suction filter box 11, and the drive rod of the first lifting cylinder 15 is arranged upward. The first lifting cylinder 15 is controlled by the foot switch 16. The first lifting cylinder 15 can drive the sealing plate 14 to move up and down, thereby controlling the air intake position of the suction filter box 11 and realizing the control of the suction switch on the suction platform 1.
[0024] The foot switch 16 controls the drive rod of the first lifting cylinder 15 to move upward, and the sealing plate 14 moves upward to the air inlet 11d. The sealing plate 14 isolates the first air duct 6 from the first cavity 11a, and the first cavity 11a is connected to the second cavity 11b. Outside air enters the suction filter box 11 through the second cavity 11b, and then passes through the first cavity 11a, the third cavity 11c, and the suction port 11e before entering the second air duct 7, forming a circulation, which stops the suction.
[0025] The foot switch 16 controls the drive rod of the second lifting cylinder to move downwards, and the sealing plate 14 moves downwards to the second air inlet 13a. The sealing plate 14 connects the first air duct 6 with the first cavity 11a, and separates the first cavity 11a from the second cavity 11b. The airflow in the first air duct 6 enters the suction filter box 11 through the air inlet 11d, and then enters the second air duct 7 through the third cavity 11c and the suction port 11e, forming a circulation, that is, the suction is turned on, and the fabric is adsorbed onto the mesh plate 5.
[0026] When the fabric is adsorbed onto the mesh plate 5, the lint and debris on the fabric are too small, and the negative pressure generated by the pores 1a draws the lint and debris into the first air duct 6. If no filtration is performed, the lint and debris will continue to enter the fan 3 along the second air duct 7, which can easily cause the fan 3 to malfunction and affect the suction efficiency.
[0027] The third chamber 11c is used to place the filter sponge. In this embodiment, the third chamber 11c is also provided with a third partition 17, which is installed on one side of the first partition 12. The third partition 17 divides the third chamber 11c into two spaces for placing the filter sponge, thereby improving the efficiency of filtering lint and debris. The cover of the suction filter box 11 is a transparent cover, which facilitates subsequent observation of the cleanliness of the filter sponge and timely cleaning of the suction filter box 11.
[0028] The suction filter control component integrates the suction switch control function and the filtration function into the suction filter box 11, which simplifies the structure, saves installation space, and reduces equipment costs.
[0029] The preferred embodiment of this utility model has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of this utility model.
Claims
1. A suction filter control assembly comprising a suction filter cassette (11), characterized by: The suction filter box (11) is divided into a first cavity (11a), a second cavity (11b) and a third cavity (11c) by a first partition plate (12) and a second partition plate (13); the first cavity (11a) is provided with a first air inlet (11d) corresponding to the box body and communicating with the air hole (1a) of the suction platform (1), the second cavity (11b) is hollow and communicates with the outside, and the third cavity (11c) is provided with a suction port (11e) corresponding to the box body and communicating with the fan (3); the first partition plate (12) is provided with a first air inlet hole (12a) communicating the first cavity (11a) and the third cavity (11c), and the second partition plate (13) is provided with a second air inlet hole (13a) communicating the first cavity (11a) and the second cavity (11b); the first cavity (11a) is provided with a sealing sheet (14) capable of moving up and down, and the sealing sheet (14) is installed on the driving rod of the first lifting cylinder (15).
2. An air intake filter control assembly according to claim 1, wherein: The second air inlet hole (13a) and the first air inlet (11d) correspond to each other in position, and the sealing sheet (14) is arranged above the second partition plate (13); the first air inlet (11d) and the first cavity (11a) and the first cavity (11a) and the second cavity (11b) are switched by the sealing sheet (14).
3. An air intake filter control assembly according to claim 2, wherein: The third cavity (11c) is used for placing filter sponge; the third cavity (11c) is provided with a third partition plate (17), the third partition plate (17) is installed on one side of the first partition plate (12), and the third partition plate (17) divides the third cavity (11c) into two spaces for placing filter sponge.
4. An air intake filter control assembly according to claim 3, wherein: The cylinder body of the first lifting cylinder (15) is vertically installed at the bottom of the suction filter box (11), and the driving rod of the first lifting cylinder (15) is arranged upward; the first lifting cylinder (15) is controlled by a foot switch (16).