A vacuum exhaust station

Abstract

The utility model discloses a kind of vacuum exhaust platforms, belong to vacuum exhaust platform technical field, in the sealing cavity of vacuum box and top cover, sliding bar supporting sealing ring slides, protruding strip on sealing ring is pushed by top pressure spring and adheres to top cover edge, automatically compensate workpiece size error or wear after long-term use of sealing surface, maintain cavity sustained sealing performance. The vacuum exhaust platform includes installation platform, vacuum box is installed at installation platform top, top cover is hingedly installed at one end of vacuum box top, handle is fixed at the end of top cover top away from hinged section, the side of the outer side of vacuum box away from top cover is installed with the compression assembly of auxiliary top cover compression;Vacuum box is provided with installation port at outer edge, sealing seat is installed at installation port, air pressure valve and temperature sensor are installed at sealing seat, gas guide opening is provided on vacuum box, communication pipe is installed at gas guide opening, communication pipe is communicated with air pump, and gas guide opening and communication pipe are connected and fixed by connecting assembly.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum exhaust table technology, and specifically relates to a vacuum exhaust table. Background Technology

[0002] The vacuum exhaust platform includes a vacuum chamber with a platform at the top and a vacuum valve at the bottom center. A tailpipe seat is mounted on the platform, connecting to the workpiece. Because the tailpipe seats are arranged in a straight line, during vacuuming of workpieces from the same batch, some workpieces have their extraction ports closer to the vacuum valve, while others have them farther away. When the vacuum level of the workpiece closer to the valve reaches ultra-high vacuum, the vacuum level of the workpiece at the farther extraction port differs by 2 to 3 orders of magnitude. This means the vacuum level inside the workpiece at the farther extraction port does not reach ultra-high vacuum, resulting in significant differences in vacuum levels among workpieces from the same batch.

[0003] Existing vacuum exhaust systems use fixed sealing rings or rigid sealing surfaces. When the workpiece has uneven dimensions due to manufacturing errors (such as thickness deviations or surface unevenness), the sealing structure cannot adaptively adjust, easily forming gaps in localized areas and causing vacuum leakage. This directly affects the stability of the vacuum level within the cavity. The sealing surface is prone to wear or deformation due to repeated opening and closing friction or aging caused by environmental factors. Traditional structures lack a dynamic compensation mechanism, requiring frequent shutdowns to replace seals or manually adjust the sealing pressure. This not only increases maintenance costs but also reduces production efficiency due to prolonged downtime. Therefore, a vacuum exhaust system is needed to help solve this problem. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a vacuum exhaust platform. In the sealed cavity between the vacuum chamber and the top cover of the vacuum exhaust platform, a sliding rod supports the sliding of the sealing ring, and a top pressure spring pushes the protruding strip on the sealing ring to fit tightly against the edge of the top cover. This automatically compensates for dimensional errors in the machined parts or wear on the sealing surface after long-term use, maintaining the continuous sealing performance of the cavity.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a vacuum exhaust platform, which includes a mounting platform, a vacuum box installed at the top of the mounting platform, a top cover hinged to one end of the top of the vacuum box, a handle fixed to the top of the top of the top cover away from the hinge section, and a clamping component for assisting the top cover to be clamped on the outer side of the vacuum box away from the top cover.

[0008] An installation port is provided on the outer edge of the vacuum chamber. A sealing seat is installed at the installation port. A pressure valve and a temperature sensor are installed at the sealing seat. An air vent is provided on the vacuum chamber. A connecting pipe is installed at the air vent. The connecting pipe is connected to an air pump. The air vent and the connecting pipe are connected and fixed by a connecting component.

[0009] Furthermore, a sealing cavity is provided on one side adjacent to the vacuum chamber and the top cover, and a sealing assembly is installed in the sealing cavity.

[0010] Furthermore, the sealing assembly includes a slide rod vertically fixed inside the sealing cavity, a sealing ring slidably disposed on the slide rod, a protruding strip protruding from the sealing ring and extending out of the sealing cavity, and a top pressure spring for assisting the sealing ring to be pushed on the slide rod.

[0011] Furthermore, the clamping assembly includes a sleeve hinged to the vacuum chamber, a lead screw is threaded through the sleeve, the sleeve and the lead screw are threaded together, and a clamping plate is embedded at the top of the lead screw, the clamping plate is pressed against the top cover.

[0012] Furthermore, the clamping plate is in the shape of a mountain, and a rotating disk is fixed at the bottom of the lead screw.

[0013] Furthermore, a control console is installed on one side of the mounting platform. The control console is equipped with a switch for controlling the air pump and a display screen for displaying temperature and pressure.

[0014] Furthermore, the connecting assembly includes a first hinge seat and a second hinge seat respectively hinged to the air inlet. The first hinge seat and the second hinge seat are fixedly connected by a fixing assembly. The fixing assembly includes a hinge rod hinged to the second hinge seat. A knob is threaded onto the hinge rod, and the bottom of the knob is pressed against the top of the first hinge seat.

[0015] Furthermore, casters are installed at the four corners of the bottom of the mounting platform, and brake pads are installed on the sides of the casters.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model uses a connecting component set at the air inlet to hinge the first hinge seat and the second hinge seat together, and presses it in place with the knob on the hinge rod, so as to realize the quick assembly and disassembly of the connecting pipe and the air pump, and simplify the connection and maintenance process of the air extraction system.

[0019] This invention utilizes a sealing assembly where a sliding rod supports the sliding of the sealing ring within the sealed cavity between the vacuum chamber and the top cover. A top pressure spring pushes the protruding strip on the sealing ring to press tightly against the edge of the top cover, automatically compensating for dimensional errors in the machined parts or wear on the sealing surface after long-term use, thus maintaining the continuous sealing performance of the cavity. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the sealing assembly of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 4 This utility model Figure 1 A magnified structural diagram at point B in the middle.

[0025] The labels in the attached diagram are as follows: 1. Mounting platform; 2. Caster wheel; 3. Brake pad; 4. Control console; 5. Vacuum chamber; 51. Mounting port; 6. Top cover; 7. Handle; 8. Sealing assembly; 9. Sealing ring; 10. Protruding strip; 11. Slide rod; 12. Top pressure spring; 13. Connecting assembly; 14. First hinge seat; 15. Second hinge seat; 16. Connecting pipe; 17. Sealing seat; 18. Fixing assembly; 19. Hinge rod; 20. Knob; 21. Clamping assembly; 22. Sleeve; 23. Lead screw; 24. Clamping plate. Detailed Implementation

[0026] 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.

[0027] This specific embodiment is a vacuum exhaust platform, such as... Figures 1-3As shown, the vacuum exhaust platform includes a mounting platform 1, with casters 2 mounted at each of the four corners of the bottom of the mounting platform 1. Brake pads 3 are mounted on the sides of the casters 2. A vacuum chamber 5 is mounted on the top of the mounting platform 1. A top cover 6 is hinged to one end of the top of the vacuum chamber 5. A handle 7 is fixed to the end of the top of the top cover 6 away from the hinge. An installation port 51 is provided on the outer edge of the vacuum chamber 5. A sealing seat is installed at the installation port 51, and a pressure valve and a temperature sensor are installed at the sealing seat. A control panel 4 is mounted on one side of the mounting platform 1. The control panel 4 is equipped with a switch for controlling the air pump's suction and a display for temperature and... The pressure display screen and the vacuum chamber 5 are provided with an air inlet. A connecting pipe 16 or a sealing fixing seat 17 is installed at the air inlet. The connecting pipe 16 is connected to the air pump. The air inlet and the connecting pipe 16 are connected and fixed by a connecting component 13. The connecting component 13 includes a first hinge seat 14 and a second hinge seat 15 respectively hinged and installed at the air inlet. The first hinge seat 14 and the second hinge seat 15 are fixedly connected by a fixing component 18. The fixing component 18 includes a hinge rod 19 hinged and installed on the second hinge seat 15. A knob 20 is threaded on the hinge rod 19. The bottom of the knob 20 is pressed against the top of the first hinge seat 14.

[0028] The connecting component 13, located at the air inlet, is hinged to the first hinge seat 14 and the second hinge seat 15, and then tightened and fixed with the knob 20 on the hinge rod 19. This allows for quick assembly and disassembly of the connecting pipe 16 and the air pump, simplifying the connection and maintenance process of the air extraction system.

[0029] A sealing cavity is provided on one side adjacent to the vacuum chamber 5 and the top cover 6. A sealing assembly 8 is installed in the sealing cavity. The sealing assembly 8 includes a slide rod 11 that is vertically fixed in the sealing cavity. A sealing ring 9 is slidably provided on the slide rod 11. A protruding strip 10 is provided on the sealing ring 9 and extends out of the sealing cavity. A top pressure spring 12 that assists the sealing ring 9 in pushing is sleeved on the slide rod 11.

[0030] Through the sealing assembly 8, within the sealed cavity between the vacuum chamber 5 and the top cover 6, the slide rod 11 supports the sliding of the sealing ring 9, and the top pressure spring 12 pushes the protruding strip 10 on the sealing ring 9 to fit tightly against the edge of the top cover 6, automatically compensating for the dimensional error of the machined parts or the wear of the sealing surface after long-term use, and maintaining the continuous sealing performance of the cavity.

[0031] like Figure 1 and Figure 4 As shown, a clamping assembly 21 for assisting the top cover 6 is installed on the outer side of the vacuum chamber 5 away from the top cover 6. The clamping assembly 21 includes a sleeve 22 hinged to the vacuum chamber 5. A lead screw 23 is installed through the sleeve 22. A rotating disk is fixed at the bottom of the lead screw 23. The sleeve 22 and the lead screw 23 are threaded together. A clamping plate 24 is embedded at the top of the lead screw 23. The clamping plate 24 is in the shape of a mountain and is clamped to the top cover 6.

[0032] The top cover 6, which is hinged, forms a sealed processing cavity with the vacuum box 5. Combined with the threaded engagement between the sleeve 22 and the lead screw 23 in the pressing assembly 21, rotating the lead screw 23 can push the mountain-shaped pressing plate 24 to press the top cover 6 evenly, avoiding deformation of the sealing surface caused by local stress concentration and ensuring the initial sealing performance of the cavity.

[0033] Working principle:

[0034] The vacuum exhaust station is supported by the mounting platform 1. The vacuum box 5 and the top cover 6 form a sealed processing cavity. The top cover 6 is opened by a hinge to facilitate the placement or removal of the processed parts. After closing, it is fixed by the clamping assembly 21 to ensure the sealing of the cavity. In the clamping assembly 21, the sleeve 22 is threadedly engaged with the lead screw 23. By rotating the lead screw 23, the clamping plate 24 is pushed to press the top cover 6. The mountain-shaped clamping plate 24 evenly distributes the pressure to avoid sealing failure caused by local stress concentration.

[0035] Inside the sealed cavity between the vacuum chamber 5 and the top cover 6, the slide rod 11 supports the sliding of the sealing ring 9, and the top pressure spring 12 pushes the sealing component 8 on the sealing ring 9 to fit tightly against the edge of the top cover 6, automatically compensating for the dimensional error of the machined parts or the wear of the sealing surface, and maintaining the sealing performance of the cavity;

[0036] The air inlet of the vacuum chamber 5 is connected to the connecting pipe 16 through the connecting assembly 13. After the first hinge seat 14 and the second hinge seat 15 are hinged, they are fixed by the hinge rod 19 and the knob 20, so as to realize the quick disassembly and assembly of the connecting pipe 16, which is convenient for the air pump to pump air or maintain. The control console 4 integrates a switch and a display screen to display the temperature and pressure data inside the vacuum chamber 5 in real time. The operator can control the start and stop of the air pump and adjust the pumping rate through the switch. The universal wheels 2 at the bottom of the mounting platform 1 are equipped with brake pads 3 to facilitate the overall movement or positioning of the equipment and adapt to the installation needs of different work positions.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum exhaust platform, comprising a mounting platform (1), characterized in that, A vacuum box (5) is installed at the top of the mounting platform (1). A top cover (6) is hinged to one end of the top of the vacuum box (5). A handle (7) is fixed to the top of the top of the top cover (6) away from the hinge section. A clamping assembly (21) for assisting the top cover (6) to be clamped is installed on the outer side of the vacuum box (5) away from the top cover (6). The vacuum chamber (5) has an installation port (51) on its outer edge. A sealing seat is installed at the installation port (51). A pressure valve and a temperature sensor are installed at the sealing seat. The vacuum chamber (5) has an air duct. A connecting pipe (16) is installed at the air duct. The connecting pipe (16) is connected to an air pump. The air duct and the connecting pipe (16) are connected and fixed by a connecting component (13).

2. The vacuum exhaust platform according to claim 1, characterized in that, A sealing cavity is provided on one side adjacent to the vacuum chamber (5) and the top cover (6), and a sealing assembly (8) is installed in the sealing cavity.

3. A vacuum exhaust platform according to claim 2, characterized in that, The sealing assembly (8) includes a slide rod (11) vertically fixed in the sealing cavity, a sealing ring (9) slidably disposed on the slide rod (11), a protruding strip (10) protruding from the sealing ring (9), the protruding strip (10) extending out of the sealing cavity, and a top pressure spring (12) for assisting the sealing ring (9) to be pushed on the slide rod (11).

4. A vacuum exhaust platform according to claim 1, characterized in that, The clamping assembly (21) includes a sleeve (22) hinged to the vacuum chamber (5), a lead screw (23) is installed through the sleeve (22), the sleeve (22) and the lead screw (23) are threaded together, and a clamping plate (24) is embedded at the top of the lead screw (23) and the clamping plate (24) is pressed against the top cover (6).

5. A vacuum exhaust platform according to claim 4, characterized in that, The clamping plate (24) is in the shape of a mountain, and a rotating disk is fixed at the bottom of the lead screw (23).

6. A vacuum exhaust platform according to claim 1, characterized in that, A control console (4) is installed on one side of the mounting platform (1). The control console (4) is equipped with a switch for controlling the air pump and a display screen for displaying temperature and pressure.

7. A vacuum exhaust platform according to claim 1, characterized in that, The connecting assembly (13) includes a first hinge seat (14) and a second hinge seat (15) respectively hinged to the air inlet. The first hinge seat (14) and the second hinge seat (15) are fixedly connected by a fixing assembly (18). The fixing assembly (18) includes a hinge rod (19) hinged to the second hinge seat (15). A knob (20) is threaded onto the hinge rod (19). The bottom of the knob (20) is pressed against the top of the first hinge seat (14).

8. A vacuum exhaust platform according to claim 1, characterized in that, The mounting platform (1) is equipped with casters (2) at the four corners of its bottom, and brake pads (3) are installed on the sides of the casters (2).

Images