Household handheld expiration sensing device

Abstract

The utility model relates to a household handheld expiration sensing device which comprises a handheld shell, a sliding cavity is formed in the handheld shell, a piston sliding block is arranged in the sliding cavity, an expiration opening is formed in the side wall of the handheld shell, an exhaust structure is arranged on the side wall of the handheld shell, and a closing valve is arranged in the exhaust structure. A compression structure is arranged in the sliding cavity, and a detection mechanism is arranged at the position, corresponding to the exhaust structure, of the handheld shell. The utility model relates to the technical field of family health detection. According to the household handheld expiration sensing device, through the arrangement of the piston sliding block, expired gas and air in the sliding cavity are isolated, the expired gas can directly enter the detection mechanism, and external air is prevented from entering the detection mechanism, so that the purpose of improving the accuracy of detection data is achieved, and the problem of misjudgment is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of family health detection, especially a kind of domestic hand-held breath sensing device. BACKGROUND

[0002] Hand-held breath sensing device is a kind of equipment by the composition and its concentration of human exhaled gas measurement, for assisting doctor to diagnose the disease suffered by patient, monitor disease state and observe treatment effect etc.;

[0003] In prior art, domestic hand-held breath sensing device can be used to judge metabolic state and health state at home.

[0004] In prior art, breath sensor for medical diagnosis and health monitoring mostly continuously collects gas sample in the process of user's exhalation through sensor, calculates the average concentration in a period of time, measures the average concentration of hydrogen or methane in exhalation, is used for diagnosing digestive system, and can also evaluate metabolic system by detecting the average concentration of acetone in exhalation.

[0005] But in prior art, because domestic breath sensing device is mostly provided with ventilation duct inside, for guiding exhaled gas to the surface of sensing equipment, but there is outside pure air or residual waste gas in the ventilation duct after last use, which causes air and exhaled gas to mix, reduces the overall gas concentration, easily leads to monitoring data lower than actual value, and easily causes misjudgment problem when used at home. UTILITARIAN CONTENT

[0006] According to the deficiencies in prior art, the utility model aims at providing a domestic hand-held breath sensing device, so as to solve the technical problems mentioned in the background.

[0007] The above technical purpose of the utility model is realized by the following technical scheme.

[0008] A domestic hand-held breath sensing device, comprising a hand-held shell, a sliding cavity is formed in the interior of the hand-held shell, a piston sliding block is arranged in the interior of the sliding cavity, an exhalation port is arranged on the side wall of the hand-held shell, an exhaust structure is arranged on the side wall of the hand-held shell, a closing valve is arranged in the interior of the exhaust structure, a compression structure is arranged in the interior of the sliding cavity, and a detection mechanism is arranged at the position corresponding to the exhaust structure of the hand-held shell.

[0009] The piston sliding block comprises a first piston and a second piston, both the first piston and the second piston are slidingly arranged in the interior of the sliding cavity, a spring connecting plate is arranged between the first sliding block and the second sliding block, and a sealing ring is arranged on the outer peripheral wall of both the first piston and the second piston.

[0010] Further, the exhaust structure comprises an exhaust groove, the exhaust groove is arranged at the arc-shaped side wall of the handheld shell, a receiving groove is arranged at the groove bottom wall of the exhaust groove, a positioning groove is arranged at the groove top wall of the exhaust groove, and the support spring is arranged in the receiving groove.

[0011] Further, the inside top end of the sliding cavity is provided with a guide sliding rail, and the first piston and the second piston are both provided with a guide groove at the corresponding position of the guide sliding rail.

[0012] Further, the closed valve comprises an arc-shaped valve plate, the arc-shaped valve plate is slidably arranged in the inside of the exhaust groove, the two ends of the arc-shaped valve plate are respectively inserted into the inside of the receiving groove and the positioning groove, and the inner arc surface of the arc-shaped valve plate is provided with a connecting protrusion.

[0013] Further, the detection mechanism comprises a connecting frame fixedly arranged at the outer peripheral wall of the handheld shell, the connecting frame corresponds to the position of the exhaust groove, the side wall of the connecting frame is provided with an exhaust pipe, and the end of the exhaust pipe is connected with a gas sensor.

[0014] Further, the compression structure comprises a guide rod fixedly arranged in the inside of the sliding cavity, the outer peripheral wall of the guide rod is provided with a compression spring, and the two ends of the compression spring are respectively fixedly connected with the cavity bottom wall of the sliding cavity and the side wall of the second piston.

[0015] In summary, the utility model has at least one of the following beneficial technical effects:

[0016] 1. The household handheld exhalation sensing device, through the arrangement of the piston sliding block, the inhaled gas and the air in the sliding cavity are isolated from each other, the inhaled gas can directly enter the detection mechanism, and external air cannot enter the detection mechanism, so that the accuracy of detection data is improved, and the problem of misjudgment is prevented.

[0017] 2. The household handheld exhalation sensing device, through the arrangement of the support spring, the arc-shaped valve plate is pushed upwards, the top end of the arc-shaped valve plate is inserted into the inside of the positioning groove, the bottom end of the arc-shaped valve plate is located at the position close to the top end in the inside of the receiving groove, the connecting protrusion contacts the groove top wall of the exhaust groove at this time, the arc-shaped valve plate is limited, and the exhaust groove is closed at this time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0019] Figure 1 It is a structure schematic view of a household handheld breath sensing device.

[0020] Figure 2 It is an internal structure schematic view of a handheld shell of the household handheld breath sensing device.

[0021] Figure 3 It is a structure schematic view of an exhaust structure of the household handheld breath sensing device.

[0022] Figure 4 It is a structure schematic view of a piston sliding block of the household handheld breath sensing device.

[0023] Figure 5 It is a structure schematic view of the household handheld breath sensing device.

[0024] In the figure, 1, handheld shell; 2, sliding cavity; 3, piston sliding block; 31, first piston; 32, second piston; 33, spring connecting plate; 34, guide groove; 4, breath outlet; 5, exhaust structure; 51, exhaust groove; 52, storage groove; 53, positioning groove; 54, supporting spring; 6, closing valve; 61, arc-shaped valve plate; 62, connecting protrusion; 7, compression structure; 71, guide rod; 72, compression spring; 8, guide sliding rail; 9, connecting frame; 10, exhaust pipe; 11, gas sensor. DETAILED DESCRIPTION

[0025] The household handheld breath sensing device is further described in detail below with reference to the accompanying drawings.

[0026] Embodiment:

[0027] Reference Figure 1 - Figure 5 The utility model discloses a kind of household handheld breath sensing devices, including handheld shell 1, the inside of handheld shell 1 is opened with sliding cavity 2, piston sliding block 3 is provided in the inside of sliding cavity 2, the side wall of handheld shell 1 is provided with breath outlet 4, the side wall of handheld shell 1 is provided with exhaust structure 5, closing valve 6 is provided in the inside of exhaust structure 5, compression structure 7 is provided in the inside of sliding cavity 2, handheld shell 1 and exhaust structure 5 corresponding position are provided with detection mechanism;

[0028] The piston sliding block 3 includes first piston 31 and second piston 32, first piston 31 and second piston 32 are slidably arranged in the inside of sliding cavity 2, and spring connecting plate 33 is provided between first sliding block and second sliding block, and the outer peripheral wall of first piston 31 and second piston 32 is provided with sealing ring.

[0029] In this embodiment, before use, compression structure 7 is in unfolded state, as shown in Fig.Figure 2 As shown, the piston slider 3 is pushed to the position close to the air outlet 4 by the compression structure 7;

[0030] In use, the user holds the air outlet 4, and the gas in the body is inhaled into the inside of the sliding cavity 2 through the air outlet 4, and the exhaled gas pushes the piston slider 3 to move, and when the piston slider 3 moves to the deep part of the sliding cavity 2, the piston slider 3 contacts the closing valve 6, as shown, and when the user continues to exhale, the piston slider 3 pushes the closing valve 6 to move downwards, and after the closing valve 6 moves, the sliding cavity 2 is communicated with the detection mechanism through the exhaust structure 5, and at this time, the gas inhaled into the inside of the sliding cavity 2 enters the detection mechanism, and the gas is detected through the detection mechanism; Figure 5

[0031] After use, the user stops exhaling, and the piston slider 3 is pushed to the position of the air outlet 4 by the compression structure 7 for next use;

[0032] Through the arrangement of the piston slider 3, the inhaled gas is isolated from the air in the sliding cavity 2, so that the inhaled gas can directly enter the detection mechanism, and external air is prevented from entering the detection mechanism, thereby improving the accuracy of detection data and preventing misjudgment.

[0033] The first piston 31 and the second piston 32 are connected through the spring connecting plate 33, and the first piston 31 and the second piston 32 can change the angle through the spring connecting plate 33, as shown, so that the piston slider 3 can slide in the arc-shaped sliding cavity 2, and the sealing ring is arranged to improve the sealing performance between the first piston 31, the second piston 32 and the sliding cavity 2. Figure 5

[0034] In a further preferred embodiment of the present application, as shown in the drawings, the exhaust structure 5 comprises an exhaust groove 51, the groove bottom wall of the exhaust groove 51 is provided with a receiving groove 52, the groove top wall of the exhaust groove 51 is provided with a positioning groove 53, and the inside of the receiving groove 52 is provided with a supporting spring 54. Figure 3 In this embodiment, the exhaust groove 51 is used to communicate the detection mechanism and the sliding cavity 2, as shown, the exhaust groove 51 is arranged at the arc-shaped side wall of the handheld outer frame, the receiving groove 52 and the positioning groove 53 are arranged to slidably install the closing valve 6 in the inside of the exhaust groove 51, and the supporting spring 54 is arranged to push the closing valve 6 upwards, so that the top end of the closing valve 6 is inserted into the inside of the positioning groove 53, and the exhaust groove 51 is closed by the closing valve 6.

[0035] Figure 3 In a further preferred embodiment of the present application, as shown in the drawings, the exhaust structure 5 comprises an exhaust groove 51, the groove bottom wall of the exhaust groove 51 is provided with a receiving groove 52, the groove top wall of the exhaust groove 51 is provided with a positioning groove 53, and the inside of the receiving groove 52 is provided with a supporting spring 54.

[0036] In a further preferred embodiment of the present application, as shown in the drawings, the exhaust structure 5 comprises an exhaust groove 51, the groove bottom wall of the exhaust groove 51 is provided with a receiving groove 52, the groove top wall of the exhaust groove 51 is provided with a positioning groove 53, and the inside of the receiving groove 52 is provided with a supporting spring 54. Figure 2 ​​​As shown, the inner top end of the sliding cavity 2 is provided with a guide slide rail 8, and the first piston 31 and the second piston 32 are both provided with a guide groove 34 corresponding to the position of the guide slide rail 8.

[0037] In the embodiment, the guide slide rail 8 and the guide groove 34 are arranged to improve the stability of the first piston 31 and the second piston 32 when connected.

[0038] In further preferable embodiments of the utility model, as shown in Figure 3 As shown, the closed valve 6 comprises an arc-shaped valve plate 61, which is slidingly arranged in the inside of the discharge groove 51, and the two ends of the arc-shaped valve plate 61 are respectively inserted into the inside of the storage groove 52 and the positioning groove 53, and the inner arc surface of the arc-shaped valve plate 61 is provided with a connecting protrusion 62.

[0039] In the embodiment, the arc-shaped valve plate 61 is pushed upward by the supporting spring 54, so that the top end of the arc-shaped valve plate 61 is inserted into the inside of the positioning groove 53, and the bottom end of the arc-shaped valve plate 61 is located at the position close to the top end in the inside of the storage groove 52, and at this time, the connecting protrusion 62 is in contact with the groove top wall of the discharge groove 51, so as to achieve the purpose of limiting the arc-shaped valve plate 61, and at this time, the arc-shaped valve plate 61 can achieve the purpose of closing the discharge groove 51.

[0040] When the piston sliding block 3 moves to the arc-shaped valve plate 61, the piston sliding block 3 and the connecting protrusion 62 are in mutual resistance, as shown in Figure 5 The piston sliding block 3 pushes the connecting protrusion 62 to move downward, so that the arc-shaped valve plate 61 is opened, at this time, the discharge groove 51 is in an open state, the sliding cavity 2 and the detection mechanism are in mutual communication, and the exhaled gas enters the detection mechanism through the discharge groove 51.

[0041] In further preferable embodiments of the utility model, as shown in Figure 3 As shown, the detection mechanism comprises a connecting frame 9 fixedly arranged on the outer peripheral wall of the handheld shell 1, the connecting frame 9 corresponds to the position of the exhaust groove, the side wall of the connecting frame 9 is provided with a discharge pipe 10, and the end portion of the discharge pipe 10 is connected with a gas sensor 11.

[0042] In the embodiment, the connecting frame 9 corresponds to the exhaust groove, after the exhaled gas is discharged through the discharge groove 51, only the exhaled gas can enter the connecting frame 9, and after entering the inside of the connecting frame 9, the exhaled gas enters the discharge pipe 10, and then enters the gas sensor 11 through the discharge pipe 10, and the exhaled gas is detected through the gas sensor 11.

[0043] In further preferable embodiments of the utility model, as shown in Figure 2As shown, the compression structure 7 comprises a guide rod 71 fixedly arranged inside the sliding cavity 2, the outer peripheral wall of the guide rod 71 is provided with a compression spring 72, and the two ends of the compression spring 72 are fixedly connected with the cavity bottom wall of the sliding cavity 2 and the side wall of the second piston 32 respectively.

[0044] In the embodiment, the guide rod 71 is used for guiding the extension and contraction track of the compression spring 72, and as shown, Figure 2 As shown, the inside of the piston sliding block 3 is provided with a sliding hole for passing through the guide rod 71, and the piston sliding block 3 is in sliding connection with the guide rod 71, the inside of the exhalation port 4 is provided with a fixed frame for fixing the end of the guide rod 71, so as to improve the stability of the guide rod 71.

[0045] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A handheld breath sensor for home use, characterized in that, The handheld casing (1) includes a sliding cavity (2) inside the handheld casing (1), a piston slider (3) inside the sliding cavity (2), an exhalation port (4) on the side wall of the handheld casing (1), an exhaust structure (5) on the side wall of the handheld casing (1), a sealing valve (6) inside the exhaust structure (5), a compression structure (7) inside the sliding cavity (2), and a detection mechanism at the position corresponding to the exhaust structure (5) on the handheld casing (1). The piston slider (3) includes a first piston (31) and a second piston (32). The first piston (31) and the second piston (32) are slidably disposed inside the sliding cavity (2), and a spring connecting plate (33) is provided between the first slider and the second slider. The outer peripheral walls of the first piston (31) and the second piston (32) are provided with sealing rings.

2. A handheld breath sensor for home use according to claim 1, characterized in that, The exhaust structure (5) includes an exhaust groove (51), which is located on the arc-shaped side wall of the handheld shell (1). The bottom wall of the exhaust groove (51) is provided with a receiving groove (52), the top wall of the exhaust groove (51) is provided with a positioning groove (53), and a support spring (54) is provided inside the receiving groove (52).

3. A handheld breath sensor for home use according to claim 2, characterized in that, The sliding cavity (2) is provided with a guide rail (8) at its inner top, and the first piston (31) and the second piston (32) are provided with guide grooves (34) at positions corresponding to the guide rail (8).

4. A handheld breath sensor for home use according to claim 3, characterized in that, The shut-off valve (6) includes an arc-shaped valve plate (61), which is slidably disposed inside the discharge groove (51), and the two ends of the arc-shaped valve plate (61) are respectively inserted into the receiving groove (52) and the positioning groove (53). The inner arc surface of the arc-shaped valve plate (61) is provided with a connecting protrusion (62).

5. A home-use handheld breath sensor device according to claim 4, characterized in that, The detection mechanism includes a connecting frame (9) fixedly installed on the outer peripheral wall of the handheld shell (1). The connecting frame (9) is positioned corresponding to the exhaust groove. An exhaust pipe (10) is provided on the side wall of the connecting frame (9). A gas sensor (11) is connected to the end of the exhaust pipe (10).

6. A home-use handheld breath sensor device according to claim 5, characterized in that, The compression structure (7) includes a guide rod (71), which is fixedly installed inside the sliding cavity (2). A compression spring (72) is provided on the outer peripheral wall of the guide rod (71), and the two ends of the compression spring (72) are fixedly connected to the bottom wall of the sliding cavity (2) and the side wall of the second piston (32), respectively.

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