Vacuum bin testing device

Abstract

The utility model relates to the technical field of vacuum testing, in particular to a vacuum bin testing device which comprises a box body, a sealing chamber arranged in the box body and a vacuum pump arranged in the box body, the vacuum pump is arranged above the sealing chamber, a lower supporting plate is fixedly installed at the top of the vacuum pump, and a buffering sealing assembly is arranged at the bottom of the lower supporting plate. A lens is arranged at the top of the lower supporting plate; a driving assembly is arranged at the top of the lens; by arranging the buffer sealing assembly and the driving assembly, when the driving assembly drives the vacuum pump to move towards the sealing chamber, the buffer sealing assembly can be used for sealing the sealing chamber under downward pressing, so that the influence on the reliability and accuracy of a final test data result due to the existence of a gap in a test is avoided, and meanwhile, overpressure can be avoided; and therefore, the sealing chamber and the vacuum pump are prevented from being abraded, knocked and damaged and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum test technical field, concretely relates to a vacuum chamber testing device. BACKGROUND

[0002] The vacuum chamber testing device is a kind of equipment for simulating and testing the performance of object in vacuum environment, it is mainly used to simulate the condition in high altitude, space or other low pressure environment by controlling air pressure, and then the test of various products, components or systems is carried out, this kind of device is widely used in aerospace, aviation, electronics, machinery and other fields, to verify the performance, reliability and durability of equipment in extreme environment, the test device of the prior art, when using, generally by corresponding driving part, vacuum pump is moved to relevant chamber position, then the gas in chamber is extracted and discharged, to carry out vacuum simulation test, but when vacuum pump and chamber contact, there can be gap clearance between vacuum pump and chamber, to affect the authenticity and reliability of test data, and in the process of moving vacuum pump to corresponding chamber, if not control the speed of movement, etc., it can cause the knock loss and wear of vacuum pump or chamber;

[0003] Therefore, we propose a kind of vacuum chamber testing device. CONTENT OF UTILITY MODEL

[0004] In view of the above-mentioned shortcomings of prior art, the utility model provides a kind of vacuum chamber testing device, can effectively solve the gap clearance between the vacuum pump and chamber of prior art, influence test, and the problem of knock loss and wear of vacuum pump and chamber in the process of moving.

[0005] To achieve the above object, the utility model is realized by the following technical scheme:

[0006] The utility model provides a kind of vacuum chamber testing device, including box and the sealing chamber of the box inside setting, and the vacuum pump of the box inside setting, and vacuum pump is set in the top of sealing chamber;

[0007] Wherein, vacuum pump top fixed mounting has lower support plate, lower support plate bottom is provided with buffer seal assembly, lower support plate top is provided with lens, the top of lens is provided with driving assembly, and driving assembly is also set in the top of lower support plate.

[0008] Further, buffer seal assembly includes the spring of multiple groups of lower support plate bottom fixed mounting, multiple groups of spring bottom fixed mounting has pressing plate, pressing plate bottom fixed mounting has elastic seal cover, and elastic seal cover top is also fixedly installed in one end of vacuum pump.

[0009] Further, the driving assembly comprises two sets of tripods fixedly installed on the top of the lower supporting plate, and the side away from each other of the two sets of tripods is fixedly installed with sliding blocks.

[0010] Further, the side away from each other of the two sets of guide rails is fixedly installed with supports, the inner cavity side wall of the supports is slidably installed with two sets of sliding rods, and the surface of the two sets of sliding rods is slidably installed on the inner cavity side wall of the sliding block.

[0011] Further, the top of the lower supporting plate is also fixedly installed with a supporting frame, one side of the supporting frame is fixedly installed with a fixed frame, and the inner cavity top of the fixed frame is fixedly installed on the top of the lens.

[0012] Further, the inner cavity side wall of the box body is also fixedly installed with a fixed plate, the inner cavity side wall of the fixed plate is fixedly installed on the surface of the sealed chamber, and the top of the fixed plate is fixedly installed on the bottom of the support.

[0013] The technical scheme provided by the utility model has the following beneficial effects compared with the known prior art:

[0014] The utility model discloses a buffer sealing assembly and driving assembly are set up, when driving assembly drives vacuum pump to move to the sealed chamber direction, utilize buffer sealing assembly to be sealed to sealed chamber under pressure, avoid when testing, there is gap clearance, influence the reliability and accuracy of final test data result, can also avoid overpressure, carry out buffer, avoid causing the wear and tear of sealed chamber and vacuum pump etc. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description. Obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Figure 1 It is the first view structure schematic drawing of the utility model,

[0017] Figure 2 It is the box body internal structure schematic drawing of the utility model,

[0018] Figure 3 It is the elastic sealing cover and vacuum pump and related assembly partial structure schematic drawing of the utility model.

[0019] The labels in the figure respectively represent: 1, box body; 2, sealed chamber; 3, support; 4, lens; 5, lower support plate; 6, pressing plate; 7, fixing frame; 8, sliding rod; 9, sliding block; 10, guide rail; 11, tripod; 12, support frame; 13, fixing plate; 14, elastic sealing cover; 15, spring; 16, vacuum pump. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] The present application will be further described below with reference to the embodiments.

[0022] A vacuum chamber testing device, comprising a box body 1 and a sealed chamber 2 arranged inside the box body 1, and a vacuum pump 16 arranged inside the box body 1 and above the sealed chamber 2, wherein a lower support plate 5 is fixedly installed on the top of the vacuum pump 16, a buffer sealing assembly is arranged at the bottom of the lower support plate 5, a lens 4 is arranged at the top of the lower support plate 5, and a driving assembly is further arranged at the top of the lower support plate 5.

[0023] Specifically, the buffer sealing assembly comprises a plurality of springs 15 fixedly installed at the bottom of the lower support plate 5, a pressing plate 6 fixedly installed at the bottom of the plurality of springs 15, and an elastic sealing cover 14 fixedly installed at the bottom of the pressing plate 6, and the top of the elastic sealing cover 14 is further fixedly installed on one end of the vacuum pump 16.

[0024] Specifically, the driving assembly at the top of the lower support plate 5 can drive the lower support plate 5 and the vacuum pump 16 at the bottom of the lower support plate 5 to move towards the sealed chamber 2 inside the box body 1, so that the elastic sealing cover 14 fixedly installed at the bottom of the pressing plate 6 is in contact with the upper part of the sealed chamber 2, and the plurality of springs 15 at the top of the pressing plate 6 and the elasticity of the elastic sealing cover 14 itself can buffer during the downward movement of the vacuum pump 16, and avoid direct contact between the vacuum pump 16 and the sealed chamber 2, thereby avoiding scratching and abrasion, and improving the sealing performance between the vacuum pump 16 and the sealed chamber 2, so that the vacuum pump 16 and the elastic sealing cover 14 can exhaust the gas in the sealed chamber 2.

[0025] Further, the driving assembly comprises two sets of tripods 11 fixedly installed on the top of the lower supporting plate 5, the two sets of tripods 11 are fixedly installed with sliding blocks 9 on the sides away from each other, the inner cavity side walls of the two sets of sliding blocks 9 are slidably installed with guide rails 10, the sides away from each other of the two sets of guide rails 10 are fixedly installed with supports 3, the inner cavity side walls of the supports 3 are slidably installed with two sets of sliding rods 8, the surfaces of the two sets of sliding rods 8 are slidably installed on the inner cavity side walls of the sliding blocks 9, the top of the lower supporting plate 5 is further fixedly installed with a supporting frame 12, one side of the supporting frame 12 is fixedly installed with a fixed frame 7, and the inner cavity top of the fixed frame 7 is fixedly installed on the top of the lens 4, the inner cavity side walls of the box body 1 are further fixedly installed with a fixed plate 13, the inner cavity side walls of the fixed plate 13 are fixedly installed on the surface of the sealed chamber 2, and the top of the fixed plate 13 is fixedly installed on the bottom of the support 3.

[0026] Specifically, the support 3 on the fixed plate 13 can be used to install the related driving assembly, the guide rails 10 and sliding rods 8 and other components can be used to guide and limit the sliding blocks 9 and tripods 11, so that the lower supporting plate 5 connected with the tripods 11 and the fixed frame 7 connected with the supporting frame 12 can be moved synchronously by the external motor and other driving elements, and the lens 4 connected with the fixed frame 7 can be used to monitor the internal test situation, which is convenient for the staff to check.

[0027] The working principle of the utility model is: through the support 3 on the fixed plate 13, the related driving assembly can be installed, the guide rails 10 and sliding rods 8 and other components can be used to guide and limit the sliding blocks 9 and tripods 11, so that the lower supporting plate 5 connected with the tripods 11 and the fixed frame 7 connected with the supporting frame 12 can be moved synchronously by the external motor and other driving elements, and the lens 4 connected with the fixed frame 7 can be used to monitor the internal test situation, which is convenient for the staff to check, at this time, the vacuum pump 16 at the bottom of the lower supporting plate 5 moves to the sealed chamber 2 in the box body 1, the elastic sealing cover 14 fixedly installed at the bottom of the pressing plate 6 contacts the upper side of the sealed chamber 2, and through the multiple springs 15 at the top of the pressing plate 6 and the elasticity of the elastic sealing cover 14 itself, the vacuum pump 16 can be buffered during the downward movement, direct contact between the vacuum pump 16 and the sealed chamber 2 can be avoided, and damage and wear can be avoided, the sealing performance between the vacuum pump 16 and the sealed chamber 2 can be improved, so that the vacuum pump 16 and the elastic sealing cover 14 can exhaust the gas in the sealed chamber 2, and the vacuum test can be performed.

[0028] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A vacuum chamber testing device, characterized by, The utility model relates to a kind of vacuum pump and sealing chamber, including: Box (1) and the sealing chamber (2) arranged in box (1) inside, and vacuum pump (16) arranged in box (1) inside, and vacuum pump (16) is arranged above sealing chamber (2); Wherein, vacuum pump (16) top fixed mounting has lower support plate (5), lower support plate (5) bottom is provided with buffer sealing assembly, lower support plate (5) top is provided with lens (4), the top of lens (4) is provided with driving assembly, and driving assembly is also arranged in the top of lower support plate (5).

2. The vacuum chamber testing device of claim 1, wherein, Buffer sealing assembly includes the multiple sets of springs (15) of lower support plate (5) bottom fixed mounting, multiple sets of springs (15) bottom fixed mounting has press plate (6), press plate (6) bottom fixed mounting has elastic sealing cover (14), and elastic sealing cover (14) top is also fixed mounting in one end of vacuum pump (16).

3. A vacuum chamber testing device according to claim 2, wherein, Driving assembly includes the two sets of tripod (11) of lower support plate (5) top fixed mounting, two sets of tripod (11) are mutually far from one side and are fixedly installed with sliding block (9), the inner chamber side wall of two sets of sliding block (9) is slidably installed with guide rail (10).

4. A vacuum chamber testing device according to claim 3, wherein, Two sets of guide rail (10) are mutually far from one side and are fixedly installed with support (3), the inner chamber side wall of support (3) is slidably installed with two sets of sliding rod (8), and the surface of two sets of sliding rod (8) is slidably installed in the inner chamber side wall of sliding block (9).

5. A vacuum chamber testing device according to claim 4, wherein, Lower support plate (5) top is also fixedly installed with support frame (12), and one side of support frame (12) is fixedly installed with fixed frame (7), and the inner chamber top of fixed frame (7) is fixedly installed in the top of lens (4).

6. A vacuum chamber testing device according to claim 5, wherein, The inner chamber side wall of box (1) is also fixedly installed with fixed plate (13), and the inner chamber side wall of fixed plate (13) is fixedly installed on the surface of sealing chamber (2), and the top of fixed plate (13) is fixedly installed in the bottom of support (3).

Images