Head mold mounting seat for respiratory resistance test

Abstract

The utility model belongs to the technical field of air respirator mask inspection, and particularly relates to a breathing resistance test head mold mounting seat, which comprises a base consisting of a bottom plate and a plurality of guide plates, the plurality of guide plates are vertically arranged on the bottom plate in pairs, and a cross-shaped communication area is formed among the plurality of guide plates. Arc-shaped guide grooves are formed in the inner sides of the two guide plates in the same group; a fixing base used for fixing the head mold is arranged on the base and comprises a swing supporting block and a mounting plate on the swing supporting block, the head mold is fixed to the mounting plate, the swing supporting block is located between the guide plates, and an arc-shaped sliding block matched with the guide groove is arranged on the side face of the swing supporting block. The swing supporting block can swing front, back, left and right in the cross-shaped communication area along the arc-shaped guide groove. According to the utility model, the head die can rapidly swing in the front, back, left and right directions, so that various postures such as standing, forward falling, backward leaning, left and right side lying and the like can be easily switched, and the test efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of respiratory resistance test head mould mounting seat, belong to air respirator face mask inspection technical field. BACKGROUND

[0002] Respiratory resistance test is the key link to evaluate the performance of air respirator face mask and other products. During the test process, the face mask of the measured respirator is worn on the standard test head mould, and the respiratory resistance value in different spatial orientations is measured by a device simulating human respiration to verify its applicability in actual complex use scenarios.

[0003] In the prior art, the fixing device of the test head mould usually adopts a single-direction fixing structure, such as a base that can only keep the head mould upright and face forward. When the performance of the face mask in non-standard orientations such as forward leaning, backward leaning, and side lying needs to be tested, the head mould posture usually needs to be manually adjusted, which makes it difficult to realize standardized posture switching, and the test conditions in different laboratories are less comparable, which restricts the efficiency and reliability of respiratory resistance test.

[0004] Therefore, it is urgent to develop a test head mould mounting seat with multi-directional quick switching, stable locking, and standardized positioning functions to meet the technical needs of efficient and accurate testing of modern respiratory protection equipment detection. SUMMARY

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a respiratory resistance test head mould mounting seat that realizes accurate positioning of the test head mould and ensures standardized collection of respiratory resistance test data in different test postures.

[0006] The respiratory resistance test head mould mounting seat comprises a base composed of a bottom plate and a plurality of guide plates, two guide plates in each group are vertically arranged on the bottom plate, and are arranged in the front, rear, left, and right directions in a circumferential array manner on the bottom plate. The guide plates form a cross-shaped communication area therebetween, and the inner sides of the two guide plates in the same group are provided with arc-shaped guide grooves; a fixing seat for fixing the head mould is arranged above the base, the fixing seat comprises a swing support block and an installation plate thereon, the head mould is fixed on the installation plate, the swing support block is located between the guide plates, and the side surface of the swing support block is provided with an arc-shaped sliding block matched with the guide groove, and the swing support block can swing forward, backward, leftward, and rightward in the cross-shaped communication area along the arc-shaped guide groove.

[0007] The head mould is fixed on the installation plate, the installation plate is fixed on the swing support block, and the head mould can swing forward, backward, leftward, and rightward in the cross-shaped communication area, thereby realizing the test of respiratory resistance in upright, forward leaning, backward leaning, and left and right side lying orientations.

[0008] The swing supporting block is provided with a gas guide hose between the swing supporting block and the bottom plate, the gas guide hose is used as a pipeline connecting a head mold and a breathing tester (with a simulated breathing function), one end of the gas guide hose is connected to a breathing port on the head mold, and the other end of the gas guide hose is connected to the breathing tester.

[0009] Further, the swing supporting block is connected with a supporting return spring between the swing supporting block and the bottom plate, and the head mold can be stably kept in an upright state when not being swung in four directions.

[0010] Further, the two guide plates in the same group are both provided with position corresponding limiting holes, the limiting holes are transversely inserted with limiting pin shafts, and the head mold is kept in a forward falling, backward leaning or left and right lying position.

[0011] Preferably, the swing supporting block is a cube, and the four arc-shaped sliding blocks are arranged on four sides of the swing supporting block.

[0012] The two guide plates in the same group are parallel to each other.

[0013] Compared with the prior art, the head mold provided by the utility model has the beneficial effects that:

[0014] 1. Multi-directional quick switching: through the guide plates, the arc-shaped guide grooves and the arc-shaped sliding blocks on the swing supporting block, the head mold can be quickly swung in four directions, so that the switching of various postures such as standing, forward falling, backward leaning, left and right lying and the like can be easily realized, and the test efficiency is greatly improved.

[0015] 2. Stable locking and standardized positioning: the cooperation of the guide grooves and the arc-shaped sliding blocks ensures that the head mold can be stably kept after being swung to a required position, avoids shaking in the test process and guarantees the accuracy of test data. Meanwhile, through the design of the limiting holes and the limiting pin shafts, the head mold can be further fixed in a specific test posture, and the standardization and comparability of the test are enhanced.

[0016] 3. Efficient and accurate test: the mounting seat provided by the utility model can meet the technical requirement of efficient and accurate test of modern respiratory protection equipment detection, so that the respiratory resistance test is more scientific and standardized, and the reliability and application value of the test result are improved.

[0017] 4. Design of the gas guide hose and the supporting return spring: the design of the gas guide hose guarantees the connection of the head mold with the breathing tester in different postures, so that the test process is not affected by the change of the posture of the head mold. The supporting return spring can stably keep the head mold in an upright state when not being swung in four directions, and the convenience and stability of the test are increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a three-dimensional structure schematic view of the utility model;

[0019] Fig. 2 This is a schematic diagram of the main structure of this utility model;

[0020] Fig. 3 This is a side view of the structure of this utility model;

[0021] Fig. 4 This is a schematic diagram of the present invention without the head mold installed;

[0022] Fig. 5 This is a partial structural schematic diagram of the present invention.

[0023] In the diagram: 1. Base plate; 2. Guide plate; 3. Guide groove; 4. Swing support block; 5. Arc-shaped slider; 6. Mounting plate; 7. Head mold; 8. Breathing port; 9. Air guide hose; 10. Support return spring; 11. Limiting hole. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments.

[0025] The description of this utility model is merely a structural or even functional description of the embodiments, and the scope of this utility model is not limited by the embodiments described herein.

[0026] like Figs. 1-5 As shown, this embodiment is achieved through the following technical solution: a base consisting of a base plate 1 and several guide plates 2, eight guide plates 2 are arranged vertically in pairs on the base plate 1, the two guide plates 2 in the same group are parallel to each other, and are arranged in a circular array on the base plate 1 in the four directions of front, back, left and right, forming a cross-shaped connecting area between the eight guide plates 2, and an arc-shaped guide groove 3 is provided on the inner side of the two guide plates 2 in the same group.

[0027] A fixing seat for fixing the head mold 7 is provided on the base. The fixing seat includes a swing support block 4 and a mounting plate 6 on it. The head mold 7 is fixed on the mounting plate 6. The swing support block 4 is a cube and is located between the guide plates 2. The side of the swing support block 4 is provided with an arc-shaped slider 5 that is adapted to the guide groove 3. The four arc-shaped sliders 5 are respectively located on the four sides of the swing support block 4. The swing support block 4 can swing back and forth and left and right along the arc-shaped guide groove 3 in the cross-shaped connected area.

[0028] An air guide hose 9 is provided between the swing support block 4 and the base plate 1. One end of the air guide hose 9 is connected to the breathing port 8 on the head mold 7, and the other end is connected to the breathing tester, which ensures the connection between the head mold and the breathing tester in different postures, so that the testing process is not affected by the change of the head mold posture.

[0029] A support return spring 10 is connected between the swing support block 4 and the base plate 1, and the air guide hose 9 is located in the hollow area around which the support return spring 10 is coiled.

[0030] The two guide plates in the same group are respectively provided with position corresponding limiting holes 11, the limiting holes 11 can be transversely inserted by limiting pin shafts, and the head mold can be fixed to keep a specific test posture.

[0031] The head mold can be quickly swung in four directions of front, back, left and right, so that various postures such as standing, forward falling, backward leaning and left and right lying can be switched easily, and the test efficiency is greatly improved.

[0032] Of course, the above content is only a preferred embodiment of the utility model, and cannot be considered as limiting the scope of the embodiment of the utility model. The utility model is also not limited to the above examples, and the equivalent changes and improvements made by the ordinary skilled in the art within the essential scope of the utility model should be attributed to the patent coverage range of the utility model.

Claims

1. A headform mounting for respiratory resistance testing, characterised in that, The base comprises a bottom plate (1) and a plurality of guide plates (2), the guide plates (2) are vertically arranged in pairs on the bottom plate (1), and are arranged in a circumferential array on the bottom plate (1) in four directions of front, back, left and right, a cross-shaped communication area is formed between the guide plates (2), and the inner sides of the two guide plates (2) in the same group are provided with arc-shaped guide grooves (3); A fixing seat for fixing a head mold (7) is arranged on the base, the fixing seat comprises a swing supporting block (4) and an installation plate (6) arranged on the swing supporting block (4), the head mold (7) is fixed on the installation plate (6), the swing supporting block (4) is arranged between the guide plates (2), arc-shaped sliding blocks (5) are arranged on the side surfaces of the swing supporting block (4) and are matched with the guide grooves (3), and the swing supporting block (4) can swing in front, back, left and right directions in the cross-shaped communication area along the arc-shaped guide grooves (3).

2. The respiratory resistance headform mounting of claim 1, wherein, A gas guide hose (9) is arranged between the swing supporting block (4) and the bottom plate (1), one end of the gas guide hose (9) is connected with a breathing port (8) of the head mold (7), and the other end of the gas guide hose (9) is connected with a breathing tester.

3. The respiratory resistance headform mounting of claim 1, wherein, A supporting return spring (10) is connected between the swing supporting block (4) and the bottom plate (1).

4. The respiratory resistance headform mounting of claim 3, wherein, Limiting holes (11) corresponding in position are arranged on the two guide plates (2) in the same group, and the limiting holes (11) are transversely inserted with limiting pins.

5. The respiratory resistance headform mounting of claim 1, wherein, The swing supporting block (4) is a cuboid, and the four arc-shaped sliding blocks (5) are arranged on four side surfaces of the swing supporting block (4).

6. The respiratory resistance headform mounting of claim 1, wherein, The two guide plates (2) in the same group are parallel to each other.

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