Small pressure-stabilizing buffer air capacitor device

Abstract

The utility model discloses a small-sized pressure-stabilizing buffering air capacitor device, and aims to provide the small-sized pressure-stabilizing buffering air capacitor device which is convenient to install, compact in structure and good in air tightness. The sampling device comprises an elastic air capacitor and a sampling pump, the lower end of the elastic air capacitor is connected to the outer side of the upper end of the sampling pump in a sleeved mode, an air capacitor air inlet nozzle and an air capacitor air outlet nozzle are arranged on the elastic air capacitor, and a cavity communicated with the air capacitor air inlet nozzle is arranged in the elastic air capacitor. A sampling pump air inlet nozzle and a sampling pump air outlet nozzle are arranged on the sampling pump, the sampling pump air inlet nozzle extends into and is suspended in the cavity, the sampling pump air outlet nozzle extends into the elastic air capacitor and is inserted into the air capacitor air outlet nozzle, and a fixing part for mounting is arranged on the outer side of the elastic air capacitor. The device is applied to the technical field of gas detection and analysis.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection and analysis, in particular to a small-sized pressure-stabilizing buffer gas container device. Background Art

[0002] In a gas detector or analyzer, the power source of the gas is usually a sampling pump. At the same time, in order to stabilize the voltage, reduce shock and prevent oscillation, it is usually necessary to set a gas container in the gas circuit. At present, the sampling pump and gas container in the gas detector or analyzer of the prior art are usually set separately and independently, and each is installed in the gas detector or analyzer. The two are connected by a pipeline, which makes the overall volume too large, and the sampling pump and gas container are usually fixed with screws, which increases the difficulty of installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a small-sized pressure-stabilizing buffer gas container device which is easy to install, compact in structure and good in air tightness.

[0004] The technical solution adopted by the utility model is: the utility model includes an elastic gas container and a sampling pump, the lower end of the elastic gas container is sleeved on the outer side of the upper end of the sampling pump, the elastic gas container is provided with an air container air inlet nozzle and an air container air outlet nozzle, the elastic gas container is provided with a chamber connected to the air container air inlet nozzle, the sampling pump is provided with a sampling pump air inlet nozzle and a sampling pump air outlet nozzle, the sampling pump air inlet nozzle extends into and is suspended in the chamber, the sampling pump air outlet nozzle extends into the elastic gas container and is plugged into the air container air outlet nozzle, and a fixing portion for installation is provided on the outer side of the elastic gas container.

[0005] Furthermore, an annular protrusion is provided on the outer side of the sampling pump outlet nozzle, and the sampling pump outlet nozzle is clamped in the air container outlet nozzle through the annular protrusion.

[0006] Furthermore, a clamping hole is arranged on the outer side of the sampling pump, and a clamping block adapted to the clamping hole is arranged in the elastic gas container, and the number of the clamping hole and the number of the clamping block are both plural.

[0007] Furthermore, the fixing portion includes a plurality of annular grooves arranged sequentially from top to bottom.

[0008] Furthermore, the elastic air container is a silicone rubber air container.

[0009] Furthermore, the upper end surface of the air container inlet nozzle is higher than the upper end surface of the air container outlet nozzle.

[0010] Furthermore, the air volume inlet nozzle comprises a wide inlet nozzle opening and a narrow inlet nozzle opening, one end of the narrow inlet nozzle opening is connected to the wide inlet nozzle opening, and the other end of the narrow inlet nozzle opening is connected to the upper end of the chamber.

[0011] The beneficial effects of the utility model are:

[0012] With respect to the deficiencies of the prior art, in the utility model, the sampling pump is inserted into the elastic gas capacitor, and the elastic gas capacitor is installed in the gas detector or analyzer through the fixing part to achieve installation, thereby avoiding the difficulty of installation caused by screw installation; in addition, since the elastic gas capacitor is an elastomer and the chamber in the elastic gas capacitor is in a negative pressure state, the elastic gas capacitor can directly wrap the sampling pump, so that no additional fixing device is required between the sampling pump and the elastic gas capacitor, and the airtightness and compact structure can be ensured, so that the utility model has the advantages of easy installation, compact structure and good airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the planar structure of the elastic gas container of the utility model.

[0018] The reference numerals are as follows:

[0019] 1. Elastic gas container; 2. Sampling pump; 3. Gas container air inlet nozzle; 5. Gas container air outlet nozzle; 6. Chamber; 7. Sampling pump air inlet nozzle; 8. Sampling pump air outlet nozzle; 9. Annular protrusion; 10. Clamp hole; 11. Clamp block; 12. Annular clamping groove; 13. Wide opening of air inlet nozzle; 15. Narrow opening of air inlet nozzle.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] like Figures 1 to 4 As shown, in this embodiment, the utility model includes an elastic gas container 1 and a sampling pump 2, the lower end of the elastic gas container 1 is sleeved on the outer side of the upper end of the sampling pump 2, the elastic gas container 1 is provided with an air container air inlet nozzle 3 and an air container air outlet nozzle 5, the elastic gas container 1 is provided with a chamber 6 connected with the air container air inlet nozzle 3, the sampling pump 2 is provided with a sampling pump air inlet nozzle 7 and a sampling pump air outlet nozzle 8, the sampling pump air inlet nozzle 7 extends into and is suspended in the chamber 6, the sampling pump air outlet nozzle 8 extends into the elastic gas container 1, and is inserted into the air container air outlet nozzle 5, and the outer side of the elastic gas container 1 is provided with a fixing portion for installation.

[0025] During installation, the upper end of the sampling pump 2 is inserted into the lower end of the elastic gas container 1 from bottom to top. At this time, the sampling pump air inlet nozzle 7 extends into and hangs in the chamber 6, and the sampling pump air outlet nozzle 8 is inserted into the gas container air outlet nozzle 5. Further, the elastic gas container 1 is installed in the gas detector or analyzer through the fixing part to complete the installation of the elastic gas container 1 and the sampling pump 2.

[0026] When the sampling pump 2 is working, the sampling pump air inlet nozzle 7 draws gas from the chamber 6 to form a negative pressure, and the gas in the pipeline connected to the air container air inlet nozzle 3 is sucked into the chamber 6, which plays a role of buffering and stabilizing pressure.

[0027] With respect to the deficiencies of the prior art, in the utility model, the sampling pump 2 is inserted into the elastic gas container 1, and the elastic gas container 1 is installed in the gas detector or analyzer through the fixing part to achieve installation, thereby avoiding the difficulty of installation caused by screw installation; in addition, since the elastic gas container 1 is an elastomer, and the chamber 6 in the elastic gas container 1 is in a negative pressure state, the elastic gas container 1 can directly wrap the sampling pump 2, so that no additional fixing device is required between the sampling pump 2 and the elastic gas container 1, and the airtightness and compact structure can be ensured, so that the utility model has the advantages of easy installation, compact structure and good airtightness.

[0028] In some embodiments, an annular protrusion 9 is provided on the outer side of the sampling pump outlet nozzle 8, and the sampling pump outlet nozzle 8 is clamped in the air container outlet nozzle 5 through the annular protrusion 9. Specifically, the provision of the annular protrusion 9 can further ensure that the sampling pump outlet nozzle 8 can be firmly clamped in the air container outlet nozzle 5.

[0029] In some embodiments, a clamping hole 10 is provided on the outside of the sampling pump 2, and a clamping block 11 adapted to the clamping hole 10 is provided in the elastic gas container 1, and the number of the clamping hole 10 and the clamping block 11 are both multiple. Specifically, since the elastic gas container 1 is an elastic body, the sampling pump 2 can be inserted into the elastic gas container 1, and further through the matching of the clamping hole 10 and the clamping block 11, the sampling pump 2 can be more stably connected to the elastic gas container 1.

[0030] In some embodiments, the fixing portion includes a plurality of annular grooves 12 arranged sequentially from top to bottom. Specifically, the elastic gas container 1 is installed in a gas detector or analyzer through the plurality of annular grooves 12, so that the sampling pump 2 and the elastic gas container 1 can be fixed.

[0031] In some embodiments, the elastic gas container 1 is a silicone rubber gas container. Of course, the elastic gas container 1 can also be other elastic structures, which can also be within the scope of the implementation of the utility model.

[0032] In some embodiments, the upper end surface of the air container inlet nozzle 3 is higher than the upper end surface of the air container outlet nozzle 5; the air container inlet nozzle 3 includes an inlet nozzle wide opening 13 and an inlet nozzle narrow opening 15, one end of the inlet nozzle narrow opening 15 is connected to the inlet nozzle wide opening 13, and the other end of the inlet nozzle narrow opening 15 is connected to the upper end of the chamber 6.

[0033] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A small-sized pressure-stabilizing buffer gas container, characterized in that: It comprises an elastic gas container (1) and a sampling pump (2), the lower end of the elastic gas container (1) is sleeved on the outer side of the upper end of the sampling pump (2), the elastic gas container (1) is provided with an air container air inlet nozzle (3) and an air container air outlet nozzle (5), the elastic gas container (1) is provided with a chamber (6) connected with the air container air inlet nozzle (3), the sampling pump (2) is provided with a sampling pump air inlet nozzle (7) and a sampling pump air outlet nozzle (8), the sampling pump air inlet nozzle (7) extends into and is suspended in the chamber (6), the sampling pump air outlet nozzle (8) extends into the elastic gas container (1) and is plugged into the air container air outlet nozzle (5), and a fixing part for installation is provided on the outer side of the elastic gas container (1).

2. A small-sized pressure-stabilizing buffer gas container device according to claim 1, characterized in that: An annular protrusion (9) is provided on the outer side of the sampling pump air outlet nozzle (8), and the sampling pump air outlet nozzle (8) is clamped in the air container air outlet nozzle (5) via the annular protrusion (9).

3. A small-sized pressure-stabilizing buffer gas container device according to claim 1, characterized in that: The sampling pump (2) is provided with a clamping hole (10) on the outside, and the elastic gas container (1) is provided with a clamping block (11) adapted to the clamping hole (10), and the number of the clamping hole (10) and the number of the clamping block (11) are both plural.

4. A small-sized pressure-stabilizing buffer gas container device according to claim 1, characterized in that: The fixing portion comprises a plurality of annular grooves (12) arranged sequentially from top to bottom.

5. A small-sized pressure-stabilizing buffer gas container device according to any one of claims 1 to 4, characterized in that: The elastic gas container (1) is a silicone rubber gas container.

6. A small-sized pressure-stabilizing buffer gas container device according to claim 1, characterized in that: The upper end surface of the air container inlet nozzle (3) is higher than the upper end surface of the air container outlet nozzle (5).

7. A small-sized pressure-stabilizing buffer gas container device according to claim 1 or 6, characterized in that: The air volume inlet nozzle (3) comprises an inlet nozzle wide opening (13) and an inlet nozzle narrow opening (15), one end of the inlet nozzle narrow opening (15) is connected to the inlet nozzle wide opening (13), and the other end of the inlet nozzle narrow opening (15) is connected to the upper end of the chamber (6).

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