Adapter for detecting pressure gauge for respirator

Abstract

The adapter comprises a supporting block, the left side of the supporting block is connected with a threaded pipe in a penetrating mode, the right side of the supporting block is connected with a connector in a penetrating mode, a plurality of fixing grooves are evenly formed in the outer ring of the right side of the connector, and fixing pieces are arranged in inner cavities of the fixing grooves. An insertion pipe is connected to the middle of the right side of the connector in a penetrating mode, and the right side of the outer ring of the connector is movably sleeved with a telescopic sealing ring. During use, the insertion pipe can be inserted into an air inlet pipe of a pressure gauge to be communicated with an air inlet of the pressure gauge, meanwhile, one fixing piece is inserted into the air inlet pipe of the pressure gauge, after insertion, the first spring can drive the clamping strip to restore to the original position, the clamping strip can be tightly attached to the inner wall of the air inlet pipe of the pressure gauge, and therefore the insertion pipe is fixed into the air inlet pipe of the pressure gauge. The adapter can be suitable for being connected with pressure gauges for respirators with interfaces of different specifications, great convenience is provided for calibration of the pressure gauges, and accuracy of calibration results can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure gauge verification, and particularly relates to an adapter for verifying a pressure gauge for a breathing apparatus. Background Art

[0002] A breathing apparatus is a crucial device in fields such as emergency rescue and diving. The accuracy of its performance is directly related to the life safety of users. Therefore, regularly and precisely verifying the pressure gauge for a breathing apparatus is an essential maintenance step.

[0003] Currently, a bench-type air pump is commonly used to verify the pressure gauge for a breathing apparatus. However, most existing bench-type air pumps are designed for general standard interfaces and often do not match the interface specifications of the special pressure gauge for a breathing apparatus, resulting in the inability to directly connect for verification. This not only limits the convenience of verification but also may affect the accuracy of the verification result due to errors during the conversion process. For this reason, we provide an adapter for verifying the pressure gauge for a breathing apparatus to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an adapter for verifying the pressure gauge for a breathing apparatus, which solves the problem that the interface of the current bench-type air pump does not match the interface specifications of the special pressure gauge for a breathing apparatus.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: An adapter for verifying the pressure gauge for a breathing apparatus includes a support block. A threaded pipe is connected through the left side of the support block, and a connector is connected through the right side of the support block. A plurality of fixing grooves are evenly formed on the outer circumference of the right side of the connector. A fixing member is arranged in the inner cavity of the fixing groove. A plug pipe is connected through the middle of the right side of the connector. A telescopic sealing ring is movably sleeved on the right side of the outer circumference of the connector. An air injection hole is formed at the top of the telescopic sealing ring, and a one-way ventilation member is arranged at the air outlet of the air injection hole.

[0008] Preferably, the left side of the connector is open, and the inner cavity of the threaded pipe is communicated with the inner cavity of the connector.

[0009] Preferably, the fixing member includes a slide bar. A clamping bar and a first spring are sleeved on the outer circumference of the slide bar. The side of the first spring close to the connector and the side of the clamping bar away from the connector are both in contact with the inner wall of the fixing groove, and the side of the first spring away from the connector is in contact with the clamping bar.

[0010] Preferably, the left side of the plug pipe is open, and an air nozzle is connected through the right side of the plug pipe.

[0011] Preferably, a plurality of anti-slip grains are provided on the left side and the inner ring of the telescopic sealing ring.

[0012] Preferably, the one-way ventilation member includes a baffle, the back surface of the baffle is rotatably connected to the inner wall of the telescopic sealing ring through a rotating shaft, and a second spring is connected between the bottom of the baffle and the inner wall of the telescopic sealing ring.

[0013] Preferably, the top of the baffle fits with the air outlet of the air injection hole, and the outer diameter of the baffle is larger than the inner diameter of the air injection hole.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] 1. When in use, the intubation tube can be inserted into the air inlet pipe of the pressure gauge to communicate with the air inlet of the pressure gauge. At the same time, the fixing member is inserted into the air inlet pipe of the pressure gauge together. After insertion, the first spring can drive the clamping strip to return to its original position, and the clamping strip can be closely attached to the inner wall of the air inlet pipe of the pressure gauge to fix the intubation tube in the air inlet pipe of the pressure gauge. This adapter can be applicable to the pressure gauges of respirators with different specifications of interfaces, which not only provides great convenience for the verification of the pressure gauge, but also ensures the accuracy of the verification result.

[0017] 2. When sealing, the telescopic sealing ring can be sleeved on the outer ring of the air inlet pipe of the pressure gauge, and its left side is fitted with the right side of the connecting head. Then, air can be injected into the telescopic sealing ring through the air injection hole. After the telescopic sealing ring is filled with air and the contact part between the connecting head and the air inlet pipe of the pressure gauge is sealed well, the air injection is stopped. At this time, the second spring returns to its original state and drives the baffle to turn back to its original position. The baffle can block the air injection hole again to prevent air leakage. At the same time, the anti-slip grains can prevent the telescopic sealing ring from sliding, so as to maintain high sealing performance. Description of the drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the telescopic sealing ring of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the internal components of the telescopic sealing ring of the present utility model;

[0021] Figure 4 is the present utility model Figure 1 The enlarged view at A in.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Support block; 2. Threaded tube; 3. Connector; 31. Fixed groove; 4. Fixing part; 41. Slide bar; 42. Clamping bar; 43. First spring; 5. Insertion tube; 51. Air nozzle; 6. Telescopic sealing ring; 61. Air injection hole; 7. One-way ventilation part; 71. Flap; 72. Rotating shaft; 73. Second spring; 8. Anti-slip particles. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0025] As Figures 1-4 shown, the present invention provides a technical solution: a adapter for calibrating a pressure gauge of a breathing apparatus, including a support block 1, a threaded tube 2 is connected through the left side of the support block 1, a connector 3 is connected through the right side of the support block 1, a plurality of fixed grooves 31 are evenly opened on the outer ring of the right side of the connector 3, a fixing part 4 is arranged in the inner cavity of the fixed groove 31, an insertion tube 5 is connected through the middle of the right side of the connector 3, a telescopic sealing ring 6 is movably sleeved on the right side of the outer ring of the connector 3, an air injection hole 61 is opened at the top of the telescopic sealing ring 6, and a one-way ventilation part 7 is arranged at the air outlet of the air injection hole 61.

[0026] Among them, the left side of the connector 3 is open, the inner cavity of the threaded tube 2 is communicated with the inner cavity of the connector 3, and the threaded tube 2 is adapted to the general standard interface adopted by the existing desktop air pump and can be connected to the air outlet pipe of the desktop air pump.

[0027] Among them, the left side of the insertion tube 5 is open, and an air nozzle 51 is connected through the right side of the insertion tube 5.

[0028] Further, the fixing part 4 includes a slide bar 41, a clamping bar 42 and a first spring 43 are sleeved on the outer ring of the slide bar 41. The side of the first spring 43 close to the connector 3 and the side of the clamping bar 42 away from the connector 3 are both attached to the inner wall of the fixed groove 31, and the side of the first spring 43 away from the connector 3 is attached to the clamping bar 42.

[0029] When calibrating the pressure gauge for the breathing apparatus, when connecting the pressure gauge to the bench-mounted air pump through this adapter, the threaded tube 2 can be connected to the outlet pipe of the bench-mounted air pump, and then the clamping strip 42 is pushed on the sliding strip 41 to push it towards the connector 3. At this time, the first spring 43 is elastically deformed due to the extrusion of the clamping strip 42. At the same time, the insertion tube 5 is inserted into the air inlet pipe of the pressure gauge to communicate with the air inlet of the pressure gauge. Meanwhile, the fixing part 4 is inserted into the air inlet pipe of the pressure gauge together. After insertion, the first spring 43 returns to its original state and drives the clamping strip 42 to return to its original position. The clamping strip 42 can be closely attached to the inner wall of the air inlet pipe of the pressure gauge to fix the insertion tube 5 in the air inlet pipe of the pressure gauge. This adapter can be used to connect the pressure gauges for breathing apparatuses with different specifications of interfaces, which not only provides great convenience for the calibration of the pressure gauge, but also ensures the accuracy of the calibration results.

[0030] Among them, a plurality of anti-slip grains 8 are provided on the left side and the inner ring of the telescopic sealing ring 6.

[0031] Furthermore, the one-way ventilation part 7 includes a baffle 71. The back of the baffle 71 is rotatably connected to the inner wall of the telescopic sealing ring 6 through a rotating shaft 72. A second spring 73 is connected between the bottom of the baffle 71 and the inner wall of the telescopic sealing ring 6. The top of the baffle 71 is in contact with the air outlet of the air injection hole 61. The outer diameter of the baffle 71 is larger than the inner diameter of the air injection hole 61.

[0032] During specific use, after the insertion tube 5 is fixed in the air inlet pipe of the pressure gauge, the telescopic sealing ring 6 can be removed from the connector 3, and then it is sleeved on the outer ring of the air inlet pipe of the pressure gauge and its left side is in contact with the right side of the connector 3. Then, air can be injected into the telescopic sealing ring 6 through the air injection hole 61. Due to the rotation of the rotating shaft 72, the air can push the baffle 71 inwards, and at the same time, the second spring 73 is elastically deformed due to the extrusion of the baffle 71. After the telescopic sealing ring 6 is filled with air and the contact part between the connector 3 and the air inlet pipe of the pressure gauge is sealed well, stop injecting air. At this time, the second spring 73 returns to its original state and drives the baffle 71 to turn back to its original position. The baffle 71 can block the air injection hole 61 again to prevent air leakage. At the same time, the anti-slip grains 8 can prevent the telescopic sealing ring 6 from sliding, keeping it highly sealed.

[0033] After the sealing is completed, turn on the bench-mounted air pump. The air pump can inject air with a specific pressure into the breathing apparatus pressure gauge through the threaded tube 2, the connector 3, the insertion tube 5 and the nozzle 51 to calibrate whether the pressure gauge can be used normally.

[0034] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adapter for calibrating a pressure gauge for a breathing apparatus, comprising a support block (1), characterized in that: The left side of the support block (1) is connected to a threaded tube (2), the right side of the support block (1) is connected to a connector (3), the outer ring of the right side of the connector (3) is evenly provided with a plurality of fixing grooves (31), the inner cavity of the fixing groove (31) is provided with a fixing member (4), the middle of the right side of the connector (3) is connected to a cannula (5), the right side movable sleeve of the outer ring of the connector (3) is provided with a telescopic sealing ring (6), the top opening of the telescopic sealing ring (6) is provided with an air injection hole (61), and the air outlet of the air injection hole (61) is provided with a one-way vent (7).

2. The adapter for calibrating a pressure gauge for a respirator according to claim 1, characterized in that: The left side of the connecting head (3) is open, and the inner cavity of the threaded tube (2) is connected to the inner cavity of the connecting head (3).

3. The adapter for calibrating a pressure gauge for a respirator according to claim 1, characterized in that: The fixing member (4) comprises a sliding bar (41), an outer ring of the sliding bar (41) is provided with a clamping bar (42) and a first spring (43), a side of the first spring (43) close to the connector (3) and a side of the clamping bar (42) away from the connector (3) are both in contact with the inner wall of the fixing groove (31), and a side of the first spring (43) away from the connector (3) is in contact with the clamping bar (42).

4. The adapter for calibrating a pressure gauge for a respirator according to claim 1, characterized in that: The left side of the cannula (5) is open, and the right side of the cannula (5) is penetrated and connected with an air nozzle (51).

5. The adapter for calibrating a pressure gauge for a respirator according to claim 1, characterized in that: The left side and the inner ring of the telescopic sealing ring (6) are both provided with a plurality of anti-slip particles (8).

6. The adapter for calibrating a pressure gauge for a respirator according to claim 1, characterized in that: The one-way vent (7) comprises a baffle (71), the back side of which is rotatably connected to the inner wall of the telescopic sealing ring (6) via a rotating shaft (72), and a second spring (73) is connected between the bottom of the baffle (71) and the inner wall of the telescopic sealing ring (6).

7. The adapter for calibrating a pressure gauge for a respirator according to claim 6, characterized in that: The top of the baffle (71) fits with the gas outlet of the gas injection hole (61), and the outer diameter of the baffle (71) is greater than the inner diameter of the gas injection hole (61).

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