Vacuum bin testing equipment

Abstract

The utility model discloses a vacuum chamber testing device, which comprises a placing container and an adjustable anti-extrusion sealing mechanism, the adjustable anti-extrusion sealing mechanism comprises a sealing cover plate, the two sides of the upper end of the sealing cover plate are fixedly connected with auxiliary supporting blocks, the lower ends of the auxiliary supporting blocks are fixedly connected with extension springs, and the extension springs are fixedly connected with the sealing cover plate. The lower end of the extension spring is fixedly connected with a sliding rod, and the lower end of the sliding rod is fixedly connected with an adjusting pressing plate. Through the arrangement of the placing container and the adjustable anti-extrusion sealing mechanism, in the testing process of the vacuum pump in the placing container, the sealing cover plate is controlled to be pressed downwards to seal the placing space to form a vacuum environment for the vacuum pump during testing, and the extension spring gives an intermediate buffering effect to the sealing cover plate during vacuum pressing; and the sealing cover plate is prevented from excessively extruding the vacuum pump to cause deformation and damage, so that the problems that the sealing performance is reduced and leakage is caused at the same time are avoided.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump testing technology, and in particular to a vacuum chamber testing device. Background Technology

[0002] Vacuum pumps are widely used in industries, scientific research, and medical fields. Their main function is to remove gases or gas mixtures to create a vacuum environment. Measuring the noise level of a vacuum pump within a specified pressure range usually involves testing under various pressure conditions to plot the pumping speed curve. The testing of a vacuum pump is a complex and meticulous process, covering multiple testing items and indicators.

[0003] However, existing vacuum chamber testing equipment still has some problems in practical use: during testing, the vacuum pump product needs to be placed in the container and the test container is sealed with a cover plate to achieve a suitable noise level when working in a vacuum environment. However, during the pressing process, the cover plate may come into direct contact with the vacuum pump product under test and be excessively squeezed, which may cause deformation or damage, resulting in a decrease in sealing performance and thus causing leakage problems. Utility Model Content

[0004] This invention provides a vacuum chamber testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vacuum chamber testing device includes a container and an adjustable anti-compression sealing mechanism. The adjustable anti-compression sealing mechanism includes a sealing cover plate. Auxiliary support blocks are fixedly connected to both sides of the upper end of the sealing cover plate. A tension spring is fixedly connected to the lower end of the auxiliary support block. A sliding rod is fixedly connected to the lower end of the tension spring. An adjusting pressure plate is fixedly connected to the lower end of the sliding rod. Transparent glass windows are fixedly connected to both sides of the upper end of the sealing cover plate near the front through through slots.

[0007] As a further improvement to this technical solution: one side of the auxiliary support block is slidably connected to a limiting slider through a limiting groove, and one end of the limiting slider is fixedly connected to the middle of the surface of the sliding rod.

[0008] As a further improvement to this technical solution: a device housing is fixedly connected to the surface of the container, and side support plates are fixedly connected to both sides of the bottom wall of the device housing. An electric push rod is fixedly connected to one edge of the upper end of the side support plate.

[0009] As a further improvement to this technical solution: the lower end of the electric push rod is fixedly connected to a fixing rod, one end of the fixing rod is fixedly connected to an auxiliary steel frame, and the lower end of the auxiliary steel frame is fixedly connected to the middle of the upper end of the closed cover plate.

[0010] As a further improvement to this technical solution: the upper end of the equipment housing is connected to a supporting top plate by means of mounting bolts, and the lower end of the supporting top plate is fixedly connected to an auxiliary fixing plate.

[0011] As a further improvement to this technical solution: one end of the auxiliary fixing plate is fixedly connected to an electric push rod two through a through hole, one end of the electric push rod two is fixedly connected to a sliding adjustment plate, and one end of the sliding adjustment plate is fixedly connected to a camera lens.

[0012] As a further improvement to this technical solution: one side of the sliding adjustable plate is slidably connected to the inner wall of one side of the auxiliary fixed plate by opening a sliding groove, and a movable door is rotatably connected to the top of one side of the equipment shell by setting a hinge.

[0013] As a further improvement to this technical solution: a second movable door is rotatably connected to the bottom of the front of the equipment housing via a hinge; movable pulleys are rotatably connected to the bottom edges of both sides of the equipment housing via a rotating shaft; and a closed support plate is inserted into the top of the front of the equipment housing via an opening.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By placing a container and setting an adjustable anti-squeezing sealing mechanism, the vacuum pump in the container is controlled to press down the sealing cover to seal the placement space during the test, forming a vacuum environment for the vacuum pump during the test. The tension spring provides an intermediate buffer effect for the sealing cover when it is pressed down by the vacuum, preventing the sealing cover from deforming and being damaged due to excessive squeezing of the vacuum pump, thus avoiding the problems of decreased sealing performance and leakage at the same time.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a vacuum chamber testing device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram showing the disassembled structure of a vacuum chamber testing device proposed in this utility model;

[0020] Figure 3 This utility model proposes a vacuum chamber testing device. Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the adjustable anti-squeezing sealing mechanism of a vacuum chamber testing device proposed in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Place the container;

[0024] 2. Adjustable anti-pinch sealing mechanism; 201. Sealing cover plate; 202. Auxiliary support block; 203. Tension spring; 204. Sliding rod; 205. Adjusting pressure plate; 206. Transparent glass window; 207. Limiting slider;

[0025] 3. Equipment casing; 4. Side support plate; 5. Electric push rod one; 6. Fixing rod; 7. Auxiliary steel frame; 8. Supporting top plate; 9. Auxiliary fixing plate; 10. Electric push rod two; 11. Sliding adjustable plate; 12. Camera lens; 13. Movable door one; 14. Movable door two; 15. Moving pulley; 16. Enclosed support plate. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0027] Please see Figures 1-4In this embodiment of the present invention, a vacuum chamber testing device includes a container 1 and an adjustable anti-squeezing sealing mechanism 2. The adjustable anti-squeezing sealing mechanism 2 includes a sealing cover 201. Auxiliary support blocks 202 are fixedly connected to both sides of the upper end of the sealing cover 201. A tension spring 203 is fixedly connected to the lower end of the auxiliary support block 202. A sliding rod 204 is fixedly connected to the lower end of the tension spring 203. An adjusting pressure plate 205 is fixedly connected to the lower end of the sliding rod 204. Transparent glass windows 206 are fixedly connected to both sides of the upper end of the sealing cover 201 near the front through through grooves.

[0028] Two transparent glass windows 206 are symmetrically installed on both sides of the upper surface of the adjusting plate 205, allowing the camera lens 12 to collect and compare data from both sides inside the container 1.

[0029] Please see Figure 4 One side of the auxiliary support block 202 is slidably connected to the limiting slider 207 through the limiting groove, and one end of the limiting slider 207 is fixedly connected to the middle of the surface of the sliding rod 204.

[0030] When the closed cover plate 201 is pressed down, the limiting slider 207 slides within the groove opened in the auxiliary support block 202, which can prevent the tension spring 203 from torturing during the compression process, and prevent the deformation of the tension spring 203 from affecting the pressure buffer of the vacuum pump by the closed cover plate 201.

[0031] Please see Figures 1-2 The surface of the container 1 is fixedly connected to the equipment shell 3. Both sides of the bottom wall of the equipment shell 3 are fixedly connected to the side support plate 4. An electric push rod 5 is fixedly connected to one edge of the upper end of the side support plate 4.

[0032] The electric push rod 5 can control the lifting and lowering of the sealing cover 201, so as to switch arbitrarily to test whether the vacuum pump has achieved a closed test environment.

[0033] Please see Figure 2 , 4 The lower end of the electric push rod 5 is fixedly connected to a fixing rod 6, and one end of the fixing rod 6 is fixedly connected to an auxiliary steel frame 7. The lower end of the auxiliary steel frame 7 is fixedly connected to the middle of the upper end of the closed cover plate 201.

[0034] The auxiliary steel frame 7 can serve as an intermediate connection support between the electric push rod 5 and the closed cover plate 201, which facilitates the extension and retraction of the electric push rod 5 to drive the lifting and lowering of the closed cover plate 201.

[0035] Please see Figures 1-2 The upper end of the equipment housing 3 is connected to a support plate 8 by a threaded mounting bolt, and the lower end of the support plate 8 is fixedly connected to an auxiliary fixing plate 9.

[0036] The top support plate 8 can be installed and fixed to the top of the equipment housing 3 by bolts, so that the top support plate 8 can be easily disassembled, and the electric push rod 2 10 can be regularly adjusted and inspected through the slot opened on the top to maintain the normal operation of the electric push rod 2 10.

[0037] Please see Figure 3 One end of the auxiliary fixing plate 9 is fixedly connected to an electric push rod 10 through a through hole. One end of the electric push rod 10 is fixedly connected to a sliding adjustment plate 11. One end of the sliding adjustment plate 11 is fixedly connected to a camera lens 12.

[0038] The electric push rod 10 can drive the sliding adjustment plate 11 to slide within the groove opened on the inner wall of the auxiliary fixing plate 9, thereby allowing the electric push rod 10 to control the horizontal sliding of the camera lens 12. The camera lens 12 can capture images of the vacuum pump in real time. Researchers can intuitively understand the operating status of the vacuum pump by observing these images.

[0039] Please see Figures 1-2 One side of the sliding adjustment plate 11 is slidably connected to the inner wall of one side of the auxiliary fixing plate 9 by opening a sliding groove, and the top of one side of the equipment shell 3 is rotatably connected to the movable door 13 by setting a hinge.

[0040] The movable door 13 can be opened freely to debug and test the internal structure of the upper space of the equipment housing 3, so that the vacuum pump can be placed inside the equipment housing 3, or the vacuum pump can be removed after the test is completed.

[0041] Please see Figures 1-2 The bottom front of the equipment housing 3 is connected to a movable door 14 via a hinge. The bottom edges of both sides of the equipment housing 3 are connected to movable pulleys 15 via a pivot. The top front of the equipment housing 3 is connected to a closed support plate 16 via an opening.

[0042] The equipment housing 3 has a round hole at the bottom of one side, which allows for the installation of electrical components, such as a cooling fan, to dissipate heat inside the equipment housing 3. According to the plan, the vacuum chamber testing equipment can be arranged in real time on site with the help of the movable pulley 15, so as to facilitate the reasonable placement of more equipment housings 3 for vacuum pump testing.

[0043] The working principle of this utility model is as follows:

[0044] The vacuum pump test sample is placed in the placement container 1, and the electric push rod 5 is driven to lower the sealing cover 201 to seal the top space of the placement container 1, forming a vacuum environment for testing. When the bottom of the adjusting pressure plate 205 contacts the test sample, the sliding rod 204 drives the limiting slider 207 to slide upward, and the tension spring 203 is compressed by the sliding rod 204. At the same time, while the adjusting pressure plate 205 is pressed down to fix it, the tension spring 203 provides sufficient buffer space to avoid excessive squeezing and compression of the vacuum pump.

[0045] The equipment and vacuum pump are turned on to extract the air. During the test, the pressure value is monitored. If the pressure value is greater than a certain set value, it indicates that the pressure is unqualified. The electric push rod 10 is controlled to extend and retract, which drives the sliding adjustment plate 11 and the camera lens 12. The camera lens 12 moves horizontally back and forth to the position where the two transparent glass windows 206 are facing each other, so as to understand the operating status of the vacuum pump and the noise level during operation. After the test, the sample tested by the vacuum pump is taken out, and the data is recorded and saved.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A vacuum chamber testing apparatus comprising a placement container (1), an adjustable anti- extrusion closure mechanism (2), characterized in that, The adjustable anti-extrusion closing mechanism (2) includes a closing cover plate (201), both sides of the upper end of the closing cover plate (201) are fixedly connected with auxiliary supporting blocks (202), the lower end of the auxiliary supporting block (202) is fixedly connected with a tension spring (203), the lower end of the tension spring (203) is fixedly connected with a sliding rod (204), the lower end of the sliding rod (204) is fixedly connected with an adjusting pressing plate (205), and both sides of the upper end of the closing cover plate (201) close to the front are fixedly connected with transparent glass windows (206) through through grooves.

2. The vacuum pod testing apparatus of claim 1, wherein, One side surface of the auxiliary supporting block (202) is slidably connected with a limiting sliding block (207) through a limiting sliding groove, and one end of the limiting sliding block (207) is fixedly connected with the middle portion of the surface of the sliding rod (204).

3. The vacuum pod testing apparatus of claim 1, wherein, The surface of the placing container (1) is fixedly connected with an equipment shell (3), both sides of the inner bottom wall of the equipment shell (3) are fixedly connected with side position supporting plates (4), and one side edge of the upper end of the side position supporting plate (4) is fixedly connected with an electric push rod I (5).

4. A vacuum chamber test apparatus as claimed in claim 3, wherein, The lower end of the electric push rod I (5) is fixedly connected with a fixed rod (6), one end of the fixed rod (6) is fixedly connected with an auxiliary steel frame (7), and the lower end of the auxiliary steel frame (7) is fixedly connected with the middle portion of the upper end of the closing cover plate (201).

5. The vacuum chamber test apparatus of claim 3, wherein, The upper end of the equipment shell (3) is threadedly connected with a supporting top plate (8) through the setting of mounting bolts, and the lower end of the supporting top plate (8) is fixedly connected with an auxiliary fixing plate (9).

6. A vacuum chamber test apparatus as claimed in claim 5, wherein, One end of the auxiliary fixing plate (9) is fixedly connected with an electric push rod II (10) through a through hole, one end of the electric push rod II (10) is fixedly connected with a slidable adjusting plate (11), and one end of the slidable adjusting plate (11) is fixedly connected with a camera lens (12).

7. A vacuum chamber test apparatus as claimed in claim 6, wherein One side surface of the slidable adjusting plate (11) is slidably connected with one side inner wall of the auxiliary fixing plate (9) through the setting of a sliding groove, and the top of one side surface of the equipment shell (3) is rotatably connected with a movable door I (13) through the setting of a hinge.

8. The vacuum chamber test apparatus of claim 3, wherein, The bottom of the front surface of the equipment shell (3) is rotatably connected with a movable door II (14) through the setting of a hinge, the bottom edges of the two side surfaces of the equipment shell (3) are rotatably connected with mobile pulleys (15) through the setting of rotating shafts, and the top of the front surface of the equipment shell (3) is plugged with a closing supporting plate (16) through the setting of a plug hole.

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