Pressure gauge device for quality engineering detection

Abstract

The utility model discloses a pressure gauge device for quality engineering detection, which relates to the field of pressure gauges and comprises a pressure gauge main body and a mounting plate, the bottom of the pressure gauge main body is connected with an air guide pipe, and side plates are mounted on two sides of the air guide pipe. According to the utility model, through the arrangement of the sealing assembly, when the pressure gauge main body is installed, the air guide pipe can pass through the installation port, the pressing rod on the side plate is inserted into the cavity, the pressing rod moves downwards to push the pressing plate to move downwards, and the pressing plate extrudes the inflatable air bag, so that the inflatable air bag is compressed under stress; air in the pressure gauge body can enter the sealing air bag ring through the inflation pipe, so that the sealing air bag ring is expanded to be tightly attached to the outer wall of the air guide pipe, the sealing performance of the pressure gauge body after installation is improved, and air is prevented from leaking through a gap between the pressure gauge body and the installation opening; in this way, it can be ensured that the sealing airbag ring can be kept in an expanded state.

Description

Technical Field

[0001] The utility model relates to the field of pressure gauges, in particular to a pressure gauge device for quality engineering detection. Background Art

[0002] Pressure gauge refers to an instrument that uses elastic elements as sensitive elements to measure and indicate pressure higher than the ambient pressure. It is widely used in almost all industrial processes and scientific research fields. Especially in the process of industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used because of the high mechanical strength and easy production of elastic sensitive elements of mechanical pressure gauges. Therefore, pressure gauges are often used to detect a certain part of the entire project, such as pressure testing of pipelines, boilers and other devices to check whether they meet quality standards. When pipelines, boilers and other devices are in use, pressure gauges are usually installed to observe the pressure value in the equipment for adjustment.

[0003] According to a Chinese patent with publication number CN213632506U, a pressure gauge device for quality engineering inspection is disclosed. The utility model can strengthen the sealing of the pressure gauge connection, avoid air leakage at the connection, improve stability, and the greater the pressure, the better the sealing effect.

[0004] In view of the above-mentioned disclosed patent content, a sealing ring is provided to seal the gap between the mounting tube and the mounting plate at the bottom of the pressure gauge, and at the same time, the sealing ring is squeezed by the pressure ring so that the sealing ring can fit tightly against the mounting plate and the mounting tube, thereby improving the sealing performance of the pressure gauge after installation. However, since the sealing ring is squeezed for a long time and severely deformed, the elastic performance of the sealing ring will be greatly reduced, making it difficult for the subsequent sealing ring to completely fit the gap between the pressure gauge and the mounting plate, thereby reducing the sealing performance of the pressure gauge after installation, which may cause gas to leak through the gap between the pressure gauge and the mounting plate, thereby affecting the use effect of the pressure gauge. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a pressure gauge device for quality engineering inspection to solve the technical problem that the elastic performance of the sealing ring will weaken after long-term use, thereby affecting the sealing between the mounting pipe and the mounting plate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure gauge device for quality engineering inspection, comprising a pressure gauge body and a mounting plate, the bottom of the pressure gauge body is connected to an air guide tube, side plates are installed on both sides of the air guide tube, and a limit assembly is provided on the side plate, the limit assembly comprises two plug blocks arranged on the top of the mounting plate, slots opened at the bottom of the two side plates and grooves opened inside the side plates, a limit block is arranged inside the groove, a limit groove is arranged on one side of the plug block, a sealing assembly and a mounting port are respectively arranged inside the mounting plate, and the sealing assembly comprises a cavity opened inside the mounting plate, a sealing groove arranged on the inner wall of the mounting port and a pressure rod installed at the bottom of the side plate, an inflatable airbag is arranged below the inside of the cavity, and a pressure plate is arranged on the top of the inflatable airbag, a sealing airbag ring is arranged inside the sealing groove, and a plurality of inflatable tubes are connected between the sealing airbag ring and the inflatable airbag.

[0007] By adopting the above technical solution, when the pressure plate squeezes the inflatable airbag, the inflatable airbag is compressed so that the air inside it enters into the sealing airbag ring through the inflation tube, thereby causing the sealing airbag ring to expand.

[0008] Furthermore, a return spring is fixed to one side of the interior of the groove, and one end of the return spring is connected to the limit block.

[0009] By adopting the above technical solution, when the limit block moves into the groove, it will squeeze the return spring, so that the return spring is compressed, which is convenient for the subsequent pushing of the limit block to return and move.

[0010] Furthermore, slide grooves are provided on both sides of the cavity, and a spring is fixed at the lower part of the slide groove, and a sliding block is connected to the top of the spring.

[0011] By adopting the above technical solution, when the slider moves downward, it will squeeze the spring, so that the spring is compressed, which is convenient for subsequently pushing the slider to return to its original position.

[0012] Furthermore, one side of the sliding block is connected to a pressure plate, and the pressure plate is slidably connected to a sliding groove through the sliding block.

[0013] By adopting the above technical solution, when the pressure plate moves, it will drive the slider to slide inside the slide groove, thereby improving the stability of the pressure plate when moving.

[0014] Furthermore, the bottom end of the pressing rod penetrates into the interior of the cavity and contacts the top of the pressing plate.

[0015] By adopting the above technical solution, when the pressure rod moves downward, it will push the pressure plate to move downward, so that the pressure plate can squeeze the inflatable airbag.

[0016] Furthermore, the air guide tube is located inside the installation opening, and the inner wall of the sealing airbag ring is in contact with the outer wall of the air guide tube.

[0017] By adopting the above technical solution, it is convenient to extend the air guide tube into the installation port, and at the same time, the sealing airbag ring can improve the sealing between the air guide tube and the installation port.

[0018] Furthermore, a push block is installed on one side of the top of the limit block.

[0019] By adopting the above technical solution, it is convenient for the staff to push the limit block to move by the push block, so that the limit block can be moved out from the limit groove.

[0020] Furthermore, the top of the insert block and the bottom of the limiting block are both arranged in an inclined surface, and the limiting block is located inside the limiting groove.

[0021] By adopting the above technical solution, the limiting block can be pushed to move into the groove when the inserting block is inserted, so that the limiting block can squeeze the reset spring.

[0022] Furthermore, the insert block is located inside the slot, and the limit block is slidably connected to the groove.

[0023] By adopting the above technical solution, when the insert block is inserted into the slot, the side plate can be positioned, and then the pressure gauge body can be positioned.

[0024] Furthermore, the thickness of the inflatable airbag is greater than the thickness of the sealing airbag ring.

[0025] By adopting the above technical solution, enough air inside the inflatable airbag can enter into the sealing airbag ring, so that the sealing airbag ring can expand.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model is provided with a sealing assembly. When the pressure gauge body is installed, the air guide tube can be passed through the installation port, and the pressure rod on the side plate is inserted into the cavity. As the pressure rod moves downward, it pushes the pressure plate downward, and the pressure plate squeezes the inflatable airbag, so that the inflatable airbag is compressed, and the air inside it enters the sealing airbag ring through the inflatable tube, so that the sealing airbag ring expands so as to fit tightly with the outer wall of the air guide tube, thereby improving the sealing performance of the pressure gauge body after installation, and preventing gas from leaking through the gap between the pressure gauge body and the installation port. At the same time, because the sealing airbag ring relies on inflation to expand and then fit with the outer wall of the air guide tube, this method can ensure that the sealing airbag ring can maintain an expanded state, avoiding the problem of reduced sealing performance due to weakened elastic performance of the sealing ring when elastic parts such as sealing rings are used for sealing for a long time, and improving the use effect of the pressure gauge;

[0028] 2. The utility model provides a limit position assembly, and when the pressure gauge body is installed on the mounting plate, the insert block will be inserted into the slot. When the insert block is inserted, it will push the limit block to move in the direction of the groove, and make the limit block squeeze the reset spring, so that the reset spring is compressed. When the insert block is fully inserted into the slot, the limit block is aligned with the limit slot, and the reset spring is stretched and then pushes the limit block to reset and move, so that the limit block is stuck in the limit slot, and then the insert block can be limited. In this way, the pressure gauge body can be installed on the mounting plate. When disassembling, it is only necessary to push the push block so that the push block drives the limit block to move out of the limit slot, and then the pressure gauge can be removed, thereby completing the disassembly. In this way, the pressure gauge body can be quickly disassembled and assembled, and the operation process is simple and convenient, thereby improving the disassembly and assembly efficiency of the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall front section structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the three-dimensional partial structure of the pressure gauge body of the utility model;

[0031] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the inflatable airbag of the utility model in a compressed state;

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure of the inflatable airbag of the utility model;

[0034] Figure 6 It is a schematic diagram of the three-dimensional partial structure of the limit block of the utility model.

[0035] In the figure: 1. Pressure gauge body; 2. Mounting plate; 3. Side plate; 4. Air guide tube; 5. Limiting assembly; 501. Insert block; 502. Slot; 503. Limiting groove; 504. Limiting block; 505. Groove; 506. Push block; 507. Reset spring; 6. Sealing assembly; 601. Cavity; 602. Inflatable airbag; 603. Pressure plate; 604. Pressure rod; 605. Slide groove; 606. Slider; 607. Spring; 608. Sealing groove; 609. Sealing airbag ring; 610. Inflating tube; 7. Mounting port. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0037] The following describes an embodiment of the utility model based on its overall structure.

[0038] Embodiment 1:

[0039] A pressure gauge device for quality engineering inspection, such as Figure 1-Figure 6 As shown, it includes a pressure gauge body 1 and a mounting plate 2, the bottom of the pressure gauge body 1 is connected to an air duct 4, side plates 3 are installed on both sides of the air duct 4, and a limit assembly 5 is provided on the side plate 3, and a sealing assembly 6 and a mounting port 7 are respectively provided inside the mounting plate 2, the limit assembly 5 includes two plug blocks 501 arranged on the top of the mounting plate 2, slots 502 opened at the bottom of the two side plates 3 and a groove 505 opened inside the side plate 3, a limit block 504 is arranged inside the groove 505, a limit groove 503 is opened on one side of the plug block 501, the top of the plug block 501 and the bottom of the limit block 504 are both arranged in an inclined surface, and the mounting plate 2 is installed on the device to be tested.

[0040] See also Figure 2 , Figure 3 and Figure 6 The limit block 504 is located inside the limit groove 503, and the insert block 501 is located inside the slot 502. The limit block 504 is slidably connected to the groove 505, so that when the insert block 501 is inserted, the limit block 504 can be pushed to move into the groove 505, so that the limit block 504 can squeeze the return spring 507. A return spring 507 is fixed to one side of the inner part of the groove 505, and one end of the return spring 507 is connected to the limit block 504. When the limit block 504 moves into the groove 505, it will squeeze the return spring 507, so that the return spring 507 is compressed, which is convenient for the subsequent pushing of the limit block 504 to return and move. A push block 506 is installed on the top side of the limit block 504, which is convenient for the staff to push the limit block 504 to move through the push block 506, so that the limit block 504 can be moved out of the limit groove 503.

[0041] Specifically, the sealing assembly 6 includes a cavity 601 opened inside the mounting plate 2, a sealing groove 608 provided on the inner wall of the mounting port 7 and a pressure rod 604 installed on the bottom of the side plate 3. An inflatable airbag 602 is provided at the lower part of the cavity 601, and a pressure plate 603 is provided on the top of the inflatable airbag 602. The bottom end of the pressure rod 604 penetrates into the cavity 601 and contacts with the top of the pressure plate 603. When the pressure rod 604 moves downward, it pushes the pressure plate 603 downward so that the pressure plate 603 can squeeze the inflatable airbag 602. A sealing airbag ring 609 is provided inside the sealing groove 608. The thickness of the inflatable airbag 602 is greater than the thickness of the sealing airbag ring 609, so that there is enough air inside the inflatable airbag 602 to enter the sealing airbag ring 609 so that the sealing airbag ring 609 can expand.

[0042] Specifically, multiple inflation tubes 610 are connected between the sealing airbag ring 609 and the inflatable airbag 602. When the pressure plate 603 squeezes the inflatable airbag 602, the inflatable airbag 602 is compressed so that the air inside it enters the sealing airbag ring 609 through the inflation tube 610, thereby causing the sealing airbag ring 609 to expand. The air guide tube 4 is located inside the mounting port 7, and the inner wall of the sealing airbag ring 609 fits with the outer wall of the air guide tube 4, making it convenient to extend the air guide tube 4 into the mounting port 7. At the same time, the sealing airbag ring 609 can improve the sealing between the air guide tube 4 and the mounting port 7.

[0043] Embodiment 2:

[0044] On the basis of the above-mentioned embodiment 1, in order to facilitate the subsequent resetting and movement of the pressing plate 603, the following structure is provided.

[0045] See also Figure 1 , Figure 3 , Figure 4 and Figure 6 , both sides of the cavity 601 are provided with sliding grooves 605, and a spring 607 is fixed at the lower part of the sliding groove 605, and the top of the spring 607 is connected to a slider 606. When the slider 606 moves downward, it will squeeze the spring 607, so that the spring 607 is compressed, which is convenient for pushing the slider 606 to reset and move. One side of the slider 606 is connected to the pressure plate 603, and the pressure plate 603 is slidably connected to the sliding groove 605 through the slider 606. When the pressure plate 603 moves, it will drive the slider 606 to slide inside the sliding groove 605, thereby improving the stability of the pressure plate 603 when moving.

[0046] The working principle of the utility model is as follows: first, the mounting plate 2 is mounted on the detected equipment. When the pressure gauge needs to be installed, the staff can insert the air guide tube 4 at the bottom of the pressure gauge into the mounting port 7, and at the same time insert the pressure rod 604 at the bottom of the side plate 3 into the cavity 601. When the air guide tube 4 is inserted into the mounting port 7, as the pressure rod 604 moves downward, it will push the pressure plate 603 to move downward, and the pressure plate 603 squeezes the inflatable airbag 602, so that the inflatable airbag 602 is compressed, and the air inside it will enter the sealing airbag ring 609 through the inflatable tube 610, so that the sealing airbag ring 609 expands so as to fit tightly with the outer wall of the air guide tube 4, thereby improving the sealing performance of the pressure gauge body 1 after installation and preventing gas from leaking through the gap between the pressure gauge body 1 and the mounting port 7;

[0047] When the pressure gauge body 1 is installed on the mounting plate 2 at the same time, the plug block 501 will be inserted into the slot 502. When the plug block 501 is inserted, it will push the limit block 504 to move in the direction of the groove 505, and make the limit block 504 squeeze the reset spring 507, so that the reset spring 507 is compressed. When the plug block 501 is fully inserted into the slot 502, the limit block 504 is aligned with the limit groove 503, and the reset spring 507 is stretched to push the limit block 504 to reset and move, so that the limit block 504 is stuck in the limit groove 503, and the plug block 501 can be limited. In this way, the pressure gauge body 1 can be installed on the mounting plate 2. When pressure is applied to the pressure gauge body 1, the pressure value can be observed through the pressure gauge body 1.

[0048] When disassembling, it is only necessary to push the push block 506 so that the push block 506 drives the limit block 504 to move out from the inside of the limit groove 503, and then the pressure gauge can be removed, thereby completing the disassembly.

[0049] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A pressure gauge device for quality engineering inspection, comprising a pressure gauge body (1) and a mounting plate (2), characterized in that: The bottom of the pressure gauge body (1) is connected to an air guide tube (4), side plates (3) are installed on both sides of the air guide tube (4), and a limit assembly (5) is provided on the side plate (3), the limit assembly (5) comprises two plug blocks (501) arranged on the top of the mounting plate (2), slots (502) opened at the bottom of the two side plates (3) and a groove (505) opened inside the side plate (3), a limit block (504) is arranged inside the groove (505), a limit groove (503) is opened on one side of the plug block (501), and the mounting plate (2) is respectively provided with a limit block (504) inside. A sealing component (6) and a mounting opening (7), wherein the sealing component (6) comprises a cavity (601) opened inside the mounting plate (2), a sealing groove (608) arranged on the inner wall of the mounting opening (7) and a pressure rod (604) installed at the bottom of the side plate (3), an inflatable airbag (602) is arranged at the lower part of the cavity (601), and a pressure plate (603) is arranged at the top of the inflatable airbag (602), a sealing airbag ring (609) is arranged inside the sealing groove (608), and a plurality of inflation tubes (610) are connected between the sealing airbag ring (609) and the inflatable airbag (602).

2. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: A return spring (507) is fixed to one side of the interior of the groove (505), and one end of the return spring (507) is connected to the limit block (504).

3. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: Slide grooves (605) are provided on both sides of the cavity (601), and a spring (607) is fixed at the lower part of the slide groove (605), and a slider (606) is connected to the top of the spring (607).

4. A pressure gauge device for quality engineering testing according to claim 3, characterized in that: One side of the sliding block (606) is connected to the pressing plate (603), and the pressing plate (603) is slidably connected to the sliding groove (605) via the sliding block (606).

5. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: The bottom end of the pressing rod (604) penetrates into the interior of the cavity (601) and contacts the top of the pressing plate (603).

6. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: The air guide tube (4) is located inside the installation opening (7), and the inner wall of the sealing airbag ring (609) is in contact with the outer wall of the air guide tube (4).

7. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: A push block (506) is installed on one side of the top of the limiting block (504).

8. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: The top of the insert block (501) and the bottom of the limiting block (504) are both arranged in an inclined surface, and the limiting block (504) is located inside the limiting groove (503).

9. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: The insert block (501) is located inside the slot (502), and the limit block (504) is slidably connected to the groove (505).

10. A pressure gauge device for quality engineering testing according to claim 1, characterized in that: The thickness of the inflatable airbag (602) is greater than the thickness of the sealing airbag ring (609).

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