Sealing detection machine for pressure gauge

Abstract

The utility model relates to the technical field of sealing detection, and discloses a pressure gauge sealing detection machine which comprises a rack, a detection base, a detection cover and an air compressor are installed on the rack, the detection cover can ascend and descend, and the detection cover moves downwards and is assembled with the detection base in a sealing mode to form a plurality of detection cavities. A to-be-detected pressure gauge is installed in the detection cavity, and the pressure gauge is subjected to pressurization detection through the air compressor. A fine brush and a detection liquid storage box which are located on the side of the detection cover are installed on the rack, and the height of the fine brush is adjustable. The detection holes of the detection cover are coated with detection liquid through the fine brush to form a continuous liquid film, the pressure gauge does not need to be immersed in the liquid, when an air compressor pressurizes the pressure gauge, if leakage exists, gas can enter the detection cavity, bubbles can appear on the surface of the liquid film, the pressure gauge is kept dry, and the detection efficiency is improved. And the damage of the detection liquid to the internal elements of the pressure gauge is avoided, and the detection cost and the product loss are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealed detection technical field, concretely is a pressure gauge sealed detection machine. BACKGROUND

[0002] Pressure gauge is a kind of instrument for measuring gas or liquid pressure, is widely used in industry, chemical industry, petroleum, energy, medical treatment and other fields, its core function is to convert pressure signal into visual reading (such as pointer angle, digital display etc.), help operator monitor the running state of equipment or system. For example, mechanical pressure gauge drives pointer rotation through the deformation of elastic element (such as spring tube, diaphragm), directly shows pressure value, and electronic pressure gauge utilizes pressure sensor to convert physical signal into electric signal, displays through digital screen, and precision is higher.

[0003] Pressure gauge is the key component of industrial safety, and its sealing directly influences the reliability of system operation, so it needs to carry out sampling inspection to its sealing before pressure gauge leaves factory.

[0004] The existing Chinese patent CN219084315U discloses a kind of pressure gauge installation sealing detection instrument, by installing multiple pressure gauges on lifting plate, servo motor is started to drive screw rod rotation, by the rotation of screw rod, left slider drops, so that lifting plate drops, and pressure gauge is immersed in water, by the start of inflation pump, by connecting hose, gas is input into airway, and pressure gauge is inflated, by observing bubble, the sealing of pressure gauge is detected.

[0005] The detector in the above prior art needs to immerse pressure gauge in water, then inflate and observe bubble, in this process, since pressure gauge is immersed in water, if pressure gauge sealing is poor and leaks, moisture can enter the inside of gauge case, on the one hand, moisture penetration movement core can make gear, connecting rod and other metal components rust, cause pointer rotation to be stuck, reading deviation or even jammed;On the other hand, moisture contact pressure sensor or internal circuit can cause short circuit, directly damage electronic components, cause instrument to be completely ineffective, increase detection cost and product loss, bring inconvenience to actual detection. UTILITY MODEL CONTENTS

[0006] To solve the technical problems in the background art, the utility model provides a kind of pressure gauge sealed detection machine.

[0007] The utility model provides a pressure gauge sealing detection machine, including frame, the detection base, detection cover, air compressor are installed on the frame, detection cover can go up and down, detection cover moves down and is sealed with detection base assembly and forms a plurality of detection cavities, the pressure gauge of waiting for detecting is installed in the detection cavity and carries out pressure detection to the pressure gauge through air compressor, frame is installed with the fine brush and detection liquid storage box in the side of detection cover of locating, the height of fine brush is adjustable, and fine brush dips detection liquid in detection liquid storage box and moves horizontally along the length direction of detection cover, the upper end surface of detection cover is equipped with the detection hole corresponding and communicating with detection cavity, and the upper end surface of detection cover is coated through fine brush dipping detection liquid to form continuous liquid membrane at detection hole,

[0008] The detection liquid is preferably soap water, and a filter screen with a mesh number of 40-80 is installed at the detection hole. The filter screen is preferably made of hydrophobic material (such as polypropylene), which can enhance the adhesion of the liquid membrane. The mesh hole is a hexagonal honeycomb structure, which is more conducive to forming a uniform film.

[0009] The detection base is used for placing the pressure gauge to be detected. The detection cover can go up and down and is sealed with the detection base when it is lowered. The two together build a plurality of independent detection cavities. The air compressor is the power source for pressure detection of the pressure gauge. By inflating the pressure gauge in the detection cavity, the pressure environment in actual use is simulated. The fine brush and the detection liquid storage box work together. The height of the fine brush is adjustable, which facilitates dipping of the detection liquid in the detection liquid storage box. The detection hole on the upper end surface of the detection cover is in communication with the detection cavity. The fine brush coats the detection liquid at the detection hole to form a continuous liquid membrane.

[0010] When the pressure gauge is pressurized, if the pressure gauge has a sealing problem, the leaked gas will be discharged to the outside of the detection cavity through the detection hole, thereby generating bubbles on the surface of the liquid membrane, so as to judge the sealing performance of the pressure gauge. This method avoids the problem of internal component damage caused by immersion of the pressure gauge in liquid in the traditional detection method.

[0011] As a further optimized scheme of the utility model, a hoist is installed on the frame, the hoist is arranged at the side of the detection cover, and the movable end of the hoist is fixed to the end of the detection cover through a cantilever;

[0012] The hoist is a key component for controlling the lifting of the detection cover. It is installed at the side of the detection cover. Through the lifting movement of its movable end, the cantilever connected thereto is lifted or lowered. Since the other end of the cantilever is fixed to the end of the detection cover, the movement of the cantilever can be accurately transmitted to the detection cover, so that the detection cover moves up and down stably. This design ensures that the detection cover and the detection base can be quickly and accurately sealed and separated, improves the detection efficiency, and ensures that the sealing performance of the detection cavity is not affected during the detection process.

[0013] As a further optimization scheme of the utility model, the electric slide rail is installed above the detection cover, the movable end of the electric slide rail can move along the length direction of the detection cover, the movable end of the electric slide rail is installed with the electric push rod, the movable end of the electric push rod extends downward and is fixedly connected with the fine brush, the fine brush is driven by the electric push rod to descend into the detection liquid storage box to dip the detection liquid, the electric slide rail drives the electric push rod and the fine brush to move to the upper end face of the detection cover to coat the detection liquid;

[0014] The electric slide rail and the electric push rod realize the automatic operation of the fine brush together, the electric slide rail is installed above the detection cover, the movable end thereof can move along the length direction of the detection cover, providing power and guidance for the horizontal movement of the fine brush, the electric push rod is installed on the movable end of the electric slide rail, and the movable end thereof extends downward and is fixed with the fine brush;

[0015] When the detection liquid needs to be dipped, the electric push rod is started to drive the fine brush to descend into the detection liquid storage box to dip the detection liquid, after the dipping is completed, the electric slide rail is started to drive the electric push rod and the fine brush to horizontally move to the upper end face of the detection cover to uniformly coat the detection liquid at the detection hole, and the automatic design improves the precision and efficiency of the detection liquid coating and reduces the errors possibly caused by manual operation.

[0016] As a further optimization scheme of the utility model, the distance between the lower end face of the electric slide rail and the upper end face of the detection cover is greater than the height of the detection cover to reserve the upward space of the detection cover.

[0017] When designing the equipment, it is very necessary to ensure that the distance between the lower end face of the electric slide rail and the upper end face of the detection cover is greater than the height of the detection cover, after the detection is completed, the detection cover needs to be lifted to reset, if the distance is too small, the detection cover may collide with the electric slide rail when being lifted, damaging the equipment components, the sufficient distance provides a safe lifting space for the detection cover, ensures the stability and reliability of the equipment operation, avoids the equipment failure caused by insufficient space, and prolongs the service life of the equipment.

[0018] As a further optimization scheme of the utility model, the upper end of the detection liquid storage box is designed as an opening, and the opening is installed with a scraper near the top of the side close to the detection cover, the upper end of the scraper extends to be flush with the upper end face of the detection cover, and the side close to the fine brush of the upper end of the scraper is a downward slope for scraping the excess detection liquid dipped on the fine brush.

[0019] The opening of the detection liquid storage box is designed to facilitate the fine hair brush to dip the detection liquid, the scraper is installed on the top of the side close to the detection cover of the opening, and the upper end of the scraper is flush with the upper end surface of the detection cover, the position is convenient for the operation of the fine hair brush, the downward slope close to the fine hair brush on the upper end of the scraper can effectively scrape off the excess detection liquid on the fine hair brush when the fine hair brush rises to leave the detection liquid storage box after dipping the detection liquid, the excess detection liquid flows back to the detection liquid storage box along the slope, which avoids the waste of the detection liquid and ensures that the fine hair brush will not be unevenly coated due to too much detection liquid when coating the detection liquid, thereby improving the detection accuracy.

[0020] As a further optimization scheme of the utility model, the detection cover is a transparent acrylic box body with an open bottom, a plurality of partition plates are installed inside the detection cover, and the plurality of partition plates are distributed at equal intervals along the length direction of the detection cover to form a plurality of detection cavities.

[0021] The detection cover adopts a transparent acrylic box body with an open bottom, on the one hand, the open bottom is convenient for sealed assembly with the detection base to form a closed detection cavity, and on the other hand, the transparent acrylic material enables the operator to directly observe the condition of the pressure gauge in the detection cavity, the plurality of partition plates inside are distributed at equal intervals to divide the inside of the detection cover into a plurality of independent detection cavities, one pressure gauge to be detected can be placed in each detection cavity, a plurality of pressure gauges can be detected at the same time in this way, the detection efficiency is improved, and moreover, the independent detection cavities avoid mutual interference between different pressure gauges to ensure the accuracy of the detection result.

[0022] As a further optimization scheme of the utility model, a sealing gasket is installed on the upper end surface of the detection base, a sealing groove compatible with the bottom opening of the detection cover is formed on the sealing gasket, and the detection cover is lowered and sealed and assembled with the sealing gasket through the sealing groove;

[0023] The sealing groove on the sealing gasket is compatible with the bottom opening of the detection cover, when the detection cover is lowered, the bottom opening can be accurately embedded in the sealing groove, the close cooperation forms a good sealing structure, effectively prevents gas from leaking from the connection between the detection cover and the detection base during the detection process, ensures the stability of the pressure in the detection cavity, and thus ensures the reliability of the detection result, avoids deviation of the detection result caused by poor sealing.

[0024] As a further optimization scheme of the utility model, a plurality of pressure gauge mounting positions are formed on the sealing gasket, the plurality of pressure gauge mounting positions are distributed at equal intervals along the length direction of the detection base and one-to-one correspond to the plurality of detection cavities, a base block is installed in each pressure gauge mounting position, the bottom end of the connecting pipe of the pressure gauge to be detected is threadedly sleeved on the upper end of the base block, and the lower end of the base block is connected with the inflation port of the air compressor through the reserved pipeline inside the detection base.

[0025] The plurality of pressure gauge mounting positions on the sealing gasket correspond to the detection cavities one by one, and each pressure gauge to be detected is provided with a fixed mounting position, the base block is mounted in the pressure gauge mounting position, the upper end of the base block is designed to be threadedly connected with the bottom end of the connecting pipe of the pressure gauge to be detected, the pressure gauge is conveniently mounted and fixed, and displacement of the pressure gauge during detection is avoided, the lower end of the base block is connected with the air inlet of the air compressor through the reserved pipeline in the detection base, when the air compressor works, compressed air can smoothly enter the base block through the reserved pipeline, and then the pressure gauge is subjected to pressure detection, and smooth detection is ensured.

[0026] As a further optimization scheme of the utility model, the sealing gasket comprises a sealing ring fixed to the upper end face of the detection base and a partition block, the sealing ring is a rectangular sealing ring, the partition block is mounted in the sealing ring, and the two ends of the partition block are vertically connected with the inner walls of the two long sides of the sealing ring to divide the inner ring of the sealing ring into a plurality of pressure gauge mounting positions;

[0027] The sealing ring, as a main component of the sealing gasket, is fixed to the upper end face of the detection base, and the rectangular structure can effectively cover the contact area of the detection base and the detection cover, thereby playing a role of overall sealing, the partition block is mounted in the sealing ring, and the two ends thereof are vertically connected with the inner walls of the two long sides of the sealing ring to divide the inner ring of the sealing ring into a plurality of independent areas, and these areas are the pressure gauge mounting positions, this design not only ensures the overall sealing of the detection cavities, but also reasonably divides a plurality of mounting positions, so that each pressure gauge can be accurately mounted, and mutual interference between different mounting positions is avoided.

[0028] As a further optimization scheme of the utility model, the upper end face of the sealing ring is provided with a first sealing groove matched with the opening edge of the lower end of the detection cover, the upper end face of the partition block is provided with a second sealing groove matched with the lower end of the partition plate, and the second sealing groove is vertically connected with the first sealing groove and communicates with the first sealing groove;

[0029] The first sealing groove in the upper end face of the sealing ring is matched with the opening edge of the lower end of the detection cover, when the detection cover moves downward, the opening edge of the lower end is embedded in the first sealing groove, and the sealing property between the detection cover and the detection base is further improved, the second sealing groove in the upper end face of the partition block is matched with the lower end of the partition plate, the lower end of the partition plate is embedded in the second sealing groove, and the second sealing groove is vertically connected with the first sealing groove and communicates with the first sealing groove, and the sealing property between the detection cover and the detection base and between the detection cavities is more strict, gas leakage is effectively prevented, and the reliability and accuracy of the detection result are further improved.

[0030] The pressure gauge sealing detection machine has the following beneficial effects:

[0031] (1) The fine brush is used for coating the detection liquid at the detection hole of the detection cover to form a continuous liquid film, the pressure gauge does not need to be immersed in the liquid, when the air compressor pressurizes the pressure gauge, if there is leakage, the gas enters the detection cavity, and the bubbles appear on the surface of the liquid film, which not only keeps the pressure gauge dry, but also avoids damage of the detection liquid to the internal elements of the pressure gauge, and reduces the detection cost and product loss;

[0032] (2) The movement and liquid dipping action of the fine brush are controlled through the electric sliding rail and the electric push rod, precise coating of the detection liquid is realized, the detection cover is quickly and sealingly assembled with the detection base through the elevator, and a plurality of pressure gauges can be pressurized and detected at the same time through the design of the plurality of detection cavities, compared with manual operation, the automatic process significantly shortens the detection period and improves the production efficiency;

[0033] (3) The detection cover is made of transparent acrylic material, the reading of the pressure gauge in the detection cavity can be directly observed through the detection cover, whether the pressure gauge is good in sealing performance can be judged by comparing the reading with the pressurizing value, and the bubble generation on the surface of the liquid film can also be observed, the detection hole is in one-to-one correspondence with the detection cavity, the position of the pressure gauge with sealing leakage can be accurately positioned, and the base block and the sealing gasket on the detection base ensure that the pressure gauge is stably installed and the detection cavity is sealed, so that the detection result deviation caused by installation error or air leakage of the detection cavity is avoided, and the actual detection precision is improved.

[0034] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is front structure schematic diagram of the utility model;

[0036] Figure 2 It is assembly structure schematic diagram of detection base and detection cover of the utility model;

[0037] Figure 3 It is top structure schematic diagram of detection base of the utility model;

[0038] Figure 4 It is top structure schematic diagram of detection cover of the utility model.

[0039] BRIEF DESCRIPTION OF DRAWINGS: 1, rack;2, detection base;3, detection cover;4, air compressor;5, elevator;6, cantilever;7, fine brush;8, detection liquid storage box;9, electric push rod;10, electric sliding rail;11, scraper;12, sealing ring;13, partition block;14, base block;15, partition plate;16, detection hole;17, first sealing groove;18, second sealing groove. DETAILED DESCRIPTION

[0040] Embodiments of the present application will be described in detail below, examples of which are represented in the drawings, wherein identical or similar symbols represent identical or similar elements or elements having the same or similar functions throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

[0041] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] In the technical field of sealing detection, the sealing detection of pressure gauge is very important to ensure its safe and reliable operation in the field of industry, and the pressure gauge sealing detection machine of the present application, in view of the drawbacks of the traditional detection method, through the ingenious structure design and the collaborative work of each part, realizes the efficient, accurate and non-destructive detection process, as follows:

[0043] As shown in Figure 1 As a whole, the detection machine is supported by the rack 1, and the detection base 2, the detection cover 3, the air compressor 4 and other key components are sequentially installed on the rack 1, and the sealing gasket is installed on the upper end face of the detection base 2.

[0044] As shown in Figure 2 and Figure 3 The sealing gasket is composed of a sealing ring 12 and a partition block 13, the sealing ring 12 is rectangular and fixed on the detection base 2, which ensures the overall sealing between the detection base 2 and the detection cover 3, and the partition block 13 is installed in the sealing ring 12, which divides the inner ring of the sealing ring 12 into a plurality of pressure gauge mounting positions distributed at equal intervals along the length direction of the detection base 2, and each mounting position is provided with a base block 14, the bottom end of the connecting pipe of the pressure gauge to be detected is threadedly sleeved on the upper end of the base block 14, and the lower end of the base block 14 is connected with the air inlet of the air compressor 4 through the internal reserved pipeline of the detection base 2, which provides a passage for subsequent pressure detection.

[0045] As shown in Figure 2As shown, the detection cover 3 is a transparent acrylic box with an open bottom, and a plurality of partition plates 15 are installed inside the detection cover 3, which divide the inside of the detection cover 3 into a plurality of independent detection cavities, each corresponding to a pressure gauge installation position, facilitating the simultaneous detection of multiple pressure gauges, improving detection efficiency and avoiding mutual interference. The detection cover 3 can be raised and lowered by the elevator 5 installed on the rack 1. The movable end of the elevator 5 is fixed to the end of the detection cover 3 through the cantilever 6, ensuring the stable lifting of the detection cover 3 and the precise sealing assembly with the detection base 2. When the detection cover 3 is lowered, the open bottom is tightly fitted with the sealing groove on the sealing pad, forming a sealed detection cavity.

[0046] As shown in Figure 1 In order to effectively detect the sealing performance of the pressure gauge, the detection machine is equipped with a unique detection liquid coating system. On the rack 1, a fine brush 7 and a detection liquid storage box 8 are installed on the side of the detection cover 3. The height of the fine brush 7 can be adjusted to dip the detection liquid in the detection liquid storage box 8. The opening of the detection liquid storage box 8 is designed to facilitate the dipping of the fine brush 7. A scraper 11 is installed on the top of the side close to the detection cover 3. The upper end is flush with the upper end surface of the detection cover 3, and the side close to the fine brush 7 is a downward slope. After the fine brush 7 dips the detection liquid, the scraper 11 can remove the excess detection liquid to avoid waste and ensure uniform coating.

[0047] The movement of the fine brush 7 is controlled by the electric sliding rail 10 installed above the detection cover 3 and the electric push rod 9. The movable end of the electric sliding rail 10 can move along the length direction of the detection cover 3. The electric push rod 9 is installed on the movable end of the electric sliding rail 10, and its movable end extends downward and is fixedly connected with the fine brush 7. The fine brush 7 is lowered to dip the detection liquid by the electric push rod 9, and then the fine brush 7 is moved to the upper end surface of the detection cover 3 by the electric sliding rail 10. The detection liquid is coated at the detection hole 16 corresponding to the detection cavity and communicating with the upper end surface of the detection cover 3, forming a continuous liquid film. A filter screen with a mesh number of 40-80 meshes made of hydrophobic material (such as polypropylene) is installed at the detection hole 16. The mesh hole is a hexagonal honeycomb structure, which can enhance the adhesion of the liquid film and more easily form a uniform film.

[0048] In the actual detection process, first, the pressure gauge to be detected is installed on the pressure gauge installation position of the detection base 2, connected with the air compressor 4 through the base block 14. Then, the elevator 5 drives the detection cover 3 to descend and seal with the detection base 2 to form a detection cavity. At this time, the electric push rod 9 and the electric sliding rail 10 control the fine brush 7 to dip the detection liquid and coat it at the detection hole 16 to form a liquid film. Then, the air compressor 4 is started to inflate and pressurize the pressure gauge in the detection cavity.

[0049] If the pressure gauge has a sealing problem, the leaked gas will be discharged through the detection hole 16, bubbles will be generated on the surface of the liquid film, and the operator can judge the sealing performance of the pressure gauge by observing the bubbles. At the same time, since the detection cover 3 is made of transparent acrylic material, the operator can also directly observe the reading of the pressure gauge in the detection cavity. By comparing the pressure value, it can be further judged whether the sealing performance of the pressure gauge is good, and the position of the sealed and leaked pressure gauge can be accurately located.

[0050] In summary, the detection machine realizes efficient, accurate and non-destructive sealing detection of the pressure gauge through the close cooperation of each component, avoids the internal component damage problem that may be caused by the immersion of the pressure gauge in the liquid in the traditional detection method, reduces the detection cost and product loss, improves the detection efficiency through the automatic detection process, improves the detection accuracy through the transparent detection cover and the precise sealing structure design, ensures the reliability of the detection result, and meets the sealing detection requirements of the pressure gauge in industrial production.

[0051] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pressure gauge seal detection machine, comprising a frame (1), a detection base (2), a detection cover (3) and an air compressor (4) are installed on the frame (1), characterized in that, The detection cover (3) can be lifted up and down, the detection cover (3) is moved down and sealedly assembled with the detection base (2) to form several detection cavities, the pressure gauge to be detected is installed in the detection cavity and the pressure gauge is pressurized and detected by the air compressor (4); The rack (1) is provided with a fine brush (7) located at the side of the detection cover (3) and a detection liquid storage box (8), the height of the fine brush (7) is adjustable, the fine brush (7) dips the detection liquid in the detection liquid storage box (8) and moves horizontally along the length direction of the detection cover (3), the upper end surface of the detection cover (3) is provided with a detection hole (16) corresponding to and communicating with the detection cavity, the upper end surface of the detection cover (3) is coated by the fine brush (7) dipping the detection liquid to form a continuous liquid film at the detection hole (16).

2. A pressure gauge seal test machine according to claim 1, wherein The rack (1) is provided with a lifting machine (5) located at the side of the detection cover (3), and the movable end of the lifting machine (5) is fixed to the end of the detection cover (3) through a cantilever (6).

3. The pressure gauge seal test machine of claim 1, wherein, The rack (1) is provided with an electric sliding rail (10) located above the detection cover (3), the movable end of the electric sliding rail (10) can move along the length direction of the detection cover (3), the movable end of the electric sliding rail (10) is provided with an electric push rod (9), the movable end of the electric push rod (9) extends downward and is fixedly connected with the fine brush (7), the fine brush (7) is driven by the electric push rod (9) to dip the detection liquid in the detection liquid storage box (8), the electric push rod (9) and the fine brush (7) are driven by the electric sliding rail (10) to move to the upper end surface of the detection cover (3) for coating the detection liquid.

4. The pressure gauge seal test machine of claim 3, wherein, The distance between the lower end surface of the electric sliding rail (10) and the upper end surface of the detection cover (3) is greater than the height of the detection cover (3) to reserve the upward moving space of the detection cover (3).

5. The pressure gauge seal test machine of claim 3, wherein, The upper end of the detection liquid storage box (8) is designed as an opening, and a scraper (11) is installed on the side top of the opening close to the detection cover (3), the upper end of the scraper (11) extends to the upper end surface of the detection cover (3), the upper end of the scraper (11) close to the fine brush (7) is a downward inclined surface for scraping the excess detection liquid dipped on the fine brush (7).

6. A pressure gauge seal testing machine according to any one of claims 1 to 5, wherein The detection cover (3) is a transparent acrylic box with an open bottom, a plurality of partition plates (15) are installed in the detection cover (3), and the plurality of partition plates (15) are distributed at equal intervals along the length direction of the detection cover (3) to form a plurality of detection cavities.

7. A pressure gauge seal test machine according to claim 6, wherein The upper end surface of the detection base (2) is provided with a sealing gasket, the sealing gasket is provided with a sealing groove matched with the open bottom of the detection cover (3), the detection cover (3) is moved down and the open bottom is sealedly assembled with the sealing gasket through the sealing groove.

8. A pressure gauge seal test machine according to claim 7, wherein, The sealing gasket has a plurality of pressure gauge mounting positions, the plurality of pressure gauge mounting positions are distributed at equal intervals along the length direction of the detection base (2) and correspond to the plurality of detection cavities one by one, a base block (14) is installed in each pressure gauge mounting position, the bottom end of the connecting pipe of the pressure gauge to be detected is threadedly sleeved on the upper end of the base block (14), and the lower end of the base block (14) is connected with the air inlet of the air compressor (4) through the reserved pipeline in the detection base (2).

9. A pressure gauge seal test machine according to claim 8, wherein, The sealing gasket comprises a sealing ring (12) fixed to the upper end face of the detection base (2) and a partition block (13), the sealing ring (12) is a rectangular sealing ring, the partition block (13) is installed in the sealing ring (12), and the two ends of the partition block (13) are connected with the inner walls of the two long sides of the sealing ring (12) perpendicularly to divide the inner ring of the sealing ring (12) into multiple pressure gauge installation positions.

10. A pressure gauge seal test machine according to claim 9, wherein, The upper end face of the sealing ring (12) is provided with a first sealing groove (17) matched with the lower end opening edge of the detection cover (3), and the upper end face of the partition block (13) is provided with a second sealing groove (18) matched with the lower end of the partition plate (15), and the second sealing groove (18) is perpendicular to and communicates with the first sealing groove (17).

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