Brake master cylinder sealing performance test bench

Abstract

The utility model is suitable for a sealing performance test bench, and provides a brake master pump sealing performance test bench comprising a fixed seat, the top of the fixed seat is fixedly connected with four first supporting rods which are distributed in a central symmetry manner, the outer sides of the plurality of first supporting rods are slidably connected with a moving member, and the bottom of the moving member is fixedly connected with a sealing structure. The sealing structure is provided with four first positioning rods, and the four first positioning rods are distributed in a central symmetry mode. According to the brake master cylinder sealing performance test bench provided by the utility model, the second screw rod is rotated to drive the moving member and the sealing structure to move, so that the sealing performance detection of the object to be detected is realized, and the specific operation comprises the steps of placing the object to be detected at the top of the object placing disc to form a sealing environment and then reducing the internal air pressure; the air pressure change is observed to detect leakage, effective sealing performance detection is ensured, the whole detection process is simple and convenient to operate by rotating the screw rod and the moving assembly, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of electric vacuum pumps, in particular to a brake master cylinder sealing test bench. Background Art

[0002] Nowadays, electric vacuum pump technology is widely used in new energy vehicle technology. New energy vehicles are driven by electric motors and traditional engine drives are eliminated, thus losing the vacuum source. Therefore, electric vacuum pumps have become the only and reliable vacuum source for the braking system of new energy vehicles. They play a vital role in the braking system of new energy vehicles and hybrid vehicles. Of course, electric vacuum pump technology also has an indispensable position in metallurgy, medicine and other fields.

[0003] During the loading process, due to the small installation space of the vacuum pump, the filter may be bumped, causing the filter to fail and causing air leakage in the pipeline. Therefore, a set of equipment is needed to quickly and conveniently test the sealing of the vacuum pump. Utility Model Content

[0004] The utility model provides a brake master cylinder sealing test bench, which aims to solve the problem that a filter is knocked against, causing the filter to fail and causing air leakage in the pipeline.

[0005] The utility model is implemented as follows: a brake master cylinder sealing test bench comprises a fixed seat, the top of the fixed seat is fixedly connected with four first support rods distributed symmetrically around the center, and a moving part is slidably connected to the outer sides of the plurality of first support rods, the bottom of the moving part is fixedly connected with a sealing structure, the sealing structure is provided with a first positioning rod, and the first positioning rod is provided with four symmetrically distributed around the center, and a plurality of first positioning rods are fixedly connected with sealing rings at the bottom, the bottom of the moving part is fixedly connected with a sealing ring, and the bottom of the sealing ring is fixedly connected with a sealing chamber, and a slide groove is provided inside the sealing chamber, and the top of the piston is rotatably connected with a first screw rod.

[0006] Preferably, a first threaded sleeve is fixedly connected to the top of the moving part, and the first threaded sleeve penetrates the moving part. Four first positioning holes are provided in a centrally symmetrical manner inside the moving part, and the first positioning hole is slidably connected to the first positioning rod, the first positioning rod is slidably connected to the inside of the slide groove, and the first screw rod is threadedly connected to the inside of the first threaded sleeve.

[0007] Preferably, a second threaded barrel is fixedly connected to a side of the top of the moving part away from the first threaded sleeve, and four second positioning holes distributed symmetrically with the center are provided inside the moving part, and the second positioning holes are distributed on the outside of the second threaded barrel.

[0008] Preferably, a second screw rod is rotatably connected to the top of the fixing seat, and the second screw rod is threadedly connected to the inside of the second threaded cylinder.

[0009] Preferably, a connecting plate is fixedly connected to one side of the bottom of the fixing seat, a storage tray is fixedly connected to the top of the connecting plate, and a sealing groove is provided inside the storage tray.

[0010] Preferably, the interior of the sealing groove is snap-connected with the bottom of the sealing chamber.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] By rotating the second screw to drive the moving parts and the movement of the sealing structure, the sealing detection of the object to be detected is realized. The specific operation includes placing the object to be detected on the top of the placement tray, lowering the internal air pressure after forming a sealed environment, and observing the air pressure changes to detect leakage, thereby ensuring effective sealing detection. By rotating the screw and moving the components, the entire detection process is simple and convenient to operate, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the sealed chamber of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the fixing seat of the utility model;

[0017] In the figure: 1. fixed seat; 2. first support rod; 3. moving part; 4. first threaded sleeve; 5. first positioning hole; 6. first positioning rod; 7. piston; 8. sealing ring; 9. sealing chamber; 10. slide groove; 11. first screw rod; 12. second threaded cylinder; 13. second positioning hole; 14. second screw rod; 15. storage tray; 16. sealing groove. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0019] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] In a further preferred embodiment of the present invention, Figure 1 - Figure 4 As shown, it includes a fixed seat 1, the top of which is fixedly connected to four first support rods 2 distributed symmetrically in the center, and a moving part 3 is slidably connected to the outside of the multiple first support rods 2, the bottom of the moving part 3 is fixedly connected to a sealing structure, the sealing structure is provided with a first positioning rod 6, and the first positioning rod 6 is provided with four centrally symmetrically distributed, and the bottoms of the multiple first positioning rods 6 are fixedly connected to a sealing ring 8, the bottom of the moving part 3 is fixedly connected to a sealing ring 8, and the bottom of the sealing ring 8 is fixedly connected to a sealing chamber 9, and a slide groove 10 is provided inside the sealing chamber 9, the top of the piston 7 is rotatably connected to a first screw rod 11, the top of the moving part 3 is fixedly connected to a first threaded sleeve 4, and the first threaded sleeve 4 runs through the inside of the moving part 3, and the moving part 3 is provided with four centrally symmetrically distributed first positioning rods 6. The first positioning hole 5 is provided with a first positioning rod 6 which is slidably connected to the first positioning hole 5. The first positioning rod 6 is slidably connected to the inside of the slide groove 10. The first screw rod 11 is threadedly connected to the inside of the first threaded sleeve 4. The side of the top of the moving part 3 away from the first threaded sleeve 4 is fixedly connected with the second threaded tube 12. Four second positioning holes 13 which are centrally symmetrically distributed are provided inside the moving part 3. The second positioning holes 13 are distributed on the outside of the second threaded tube 12. The top of the fixed seat 1 is rotatably connected with the second screw rod 14, and the second screw rod 14 is threadedly connected to the inside of the second threaded tube 12. A connecting plate is fixedly connected to one side of the bottom of the fixed seat 1. A storage tray 15 is fixedly connected to the top of the connecting plate. A sealing groove 16 is provided inside the storage tray 15. The sealing groove 16 is connected to the bottom of the sealing bin 9 by snapping.

[0021] First, rotate the second screw rod 14 to make the second screw rod 14 rotate on the top of the fixed seat 1, so that the second screw rod 14 drives the second threaded cylinder 12 to move upward. When the second threaded cylinder 12 moves upward, the second threaded cylinder 12 will drive the moving part 3 to move upward, so that the moving part 3 drives the sealing structure to move upward as a whole, so that the sealing chamber 9 is away from the placement plate 15, and the object is placed on the top of the placement plate 15. At this time, rotate the second screw rod 14 to make the second screw rod 14 drive the moving part 3 to move downward, so that the moving part 3 drives the sealing chamber 9 to move downward until the sealing chamber 9 is engaged in the sealing groove 16, so that a sealed environment is formed inside the sealing chamber 9. At this time, rotate the first screw rod 11 to make the first screw rod 11 drive the sealing ring 8 to move upward, so that the air pressure inside the sealing chamber 9 is reduced, observe whether the vacuum degree decreases, and check whether there is gas penetration or leakage, thereby achieving the effect of sealing detection of the equipment inside the sealing chamber 9.

[0022] First, start rotating the second screw 14 to ensure that it is located at the top of the fixed seat 1 and rotates. Then, the second screw 14 drives the second threaded cylinder 12 to move upward. When the second threaded cylinder 12 starts to rise, it will further drive the moving part 3 and the sealing structure connected thereto to move upward as a whole, so that the sealing chamber 9 is separated from the placement tray 15. At this time, the object to be detected can be placed on the top of the placement tray 15.

[0023] Next, the second screw rod 14 is operated and rotated again to drive the moving part 3 and the components connected thereto to move downward. As the moving part 3 moves, the sealing chamber 9 will also move downward until the sealing chamber 9 is fully engaged with the sealing groove 16 to form a sealed environment.

[0024] Afterwards, start rotating the first screw 11 to drive the sealing ring 8 to move upward. This action will reduce the air pressure inside the sealing chamber 9. During this process, it is necessary to carefully observe the changes in air pressure to check whether there is gas penetration or leakage. In this way, we can perform effective sealing detection on the equipment inside the sealing chamber 9.

[0025] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present invention.

[0026] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0027] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0028] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A brake master cylinder sealing test bench, comprising a fixing seat (1) and a piston (7), characterized in that: The top of the fixed seat (1) is fixedly connected to four first support rods (2) distributed symmetrically in the center, and a moving part (3) is slidably connected to the outer sides of the plurality of first support rods (2), the bottom of the moving part (3) is fixedly connected to a sealing structure, the sealing structure is provided with a first positioning rod (6), and the first positioning rod (6) is provided with four first positioning rods (6) distributed symmetrically in the center, and the bottoms of the plurality of first positioning rods (6) are fixedly connected to a sealing ring (8), the bottom of the moving part (3) is fixedly connected to a sealing ring (8), and the bottom of the sealing ring (8) is fixedly connected to a sealing chamber (9), and a sliding groove (10) is provided inside the sealing chamber (9), and the top of the piston (7) is rotatably connected to a first screw rod (11).

2. A brake master cylinder sealing test bench as claimed in claim 1, characterized in that: A first threaded sleeve (4) is fixedly connected to the top of the moving part (3), and the first threaded sleeve (4) penetrates the moving part (3). Four first positioning holes (5) are arranged in a centrally symmetrical manner. The first positioning holes (5) are slidably connected to the first positioning rod (6). The first positioning rod (6) is slidably connected to the inside of the slide groove (10). The first screw rod (11) is threadedly connected to the inside of the first threaded sleeve (4).

3. A brake master cylinder sealing test bench as claimed in claim 2, characterized in that: A second threaded barrel (12) is fixedly connected to a side of the top of the moving part (3) away from the first threaded sleeve (4), and four second positioning holes (13) distributed symmetrically with the center are provided inside the moving part (3), and the second positioning holes (13) are distributed outside the second threaded barrel (12).

4. A brake master cylinder sealing test bench as claimed in claim 1, characterized in that: The top of the fixing seat (1) is rotatably connected to a second screw rod (14), and the second screw rod (14) is threadedly connected to the inside of the second threaded cylinder (12).

5. A brake master cylinder sealing test bench as claimed in claim 1, characterized in that: A connecting plate is fixedly connected to one side of the bottom of the fixing seat (1), a storage tray (15) is fixedly connected to the top of the connecting plate, and a sealing groove (16) is provided inside the storage tray (15).

6. A brake master cylinder sealing test bench as claimed in claim 5, characterized in that: The interior of the sealing groove (16) is snap-connected with the bottom of the sealing chamber (9).

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