Portable external pump

Abstract

The utility model belongs to the technical field of gas detection, and particularly relates to a portable external pump, which comprises an external pump main body and a main machine, the external pump main body consists of an upper shell, a lower shell, a miniature air pump, a main board, a filtering mechanism and a sampling mechanism, a soft convex sealing ring is arranged on the inner side of the upper shell, the upper shell and the soft convex sealing ring are fused into a whole through a sleeve, and the main machine is arranged on the main machine. Screws are arranged on the surface of the upper shell, the lower shell and the upper shell are fixedly installed through the screws, by adopting the mode that positioning supporting is matched with buckle connecting and fixing, the device can be tightly connected with a host and is easy to disassemble and assemble, after the device is assembled with the host, a soft protruding sealing ring can completely seal a host detection opening, the sealing performance is guaranteed, and therefore the detection accuracy is guaranteed. The problems that gas detection equipment in the current market is large in size, heavy in weight and inconvenient to package and carry are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a portable external pump. Background Art

[0002] Gas detection equipment is an instrument used to measure the concentration of different gases in the air. This equipment plays an important role in industrial production, environmental monitoring and safety protection. It can monitor the concentration of harmful or toxic gases in the air, such as carbon dioxide, carbon monoxide, ammonia, etc., to prevent these gases from exceeding the safe range and causing harm to people's health or leading to accidents.

[0003] Currently, most of the portable pump-type gas detection equipment on the market are built-in air pump instruments, which cannot meet the needs of pumpable and diffusible usage in a variety of complex environments, and have problems such as large size, heavy weight, and unadjustable detection gas flow. Therefore, a portable external pump is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a portable external pump.

[0005] The technical solution adopted by the utility model to solve the technical problem is: the portable external pump described in the utility model comprises an external pump body and a host, wherein the external pump body is composed of an upper shell, a lower shell, a micro air pump, a main board, a filtering mechanism and a sampling mechanism;

[0006] The inner side of the upper shell is provided with a soft raised sealing ring, which is fused with the upper shell through a sleeve. The surface of the upper shell is provided with screws, which can be M2.5-10 screws. The lower shell and the upper shell are fixedly installed by screws.

[0007] The external pump body is supported by the positioning support on the surface of the lower shell to support the main machine, the soft raised sealing ring inside the upper shell is pressed on the front of the main machine, and the buckles on both sides of the upper shell are buckled on the main machine, and the main machine compresses the surface of the soft raised sealing ring to seal and fix;

[0008] An air outlet pipe is provided on the surface of the soft raised sealing ring, and is connected to the micro air pump through the air outlet pipe. The micro air pump is connected to the main board through a wire. The micro air pump cooperates with a sampling mechanism to collect gas, and the gas is filtered through a filtering mechanism and then input into the host.

[0009] Preferably, the soft raised sealing ring is made of TPE-V material and is arranged in a racetrack shape.

[0010] Preferably, the sampling mechanism includes a Luer bulkhead connector, a nut and a sampling tube. The Luer bulkhead connector and the nut are fixedly mounted on the lower shell. The nut may be an M5 nut. The front end of the Luer bulkhead connector is sealed and fixedly connected to the filtering mechanism via a Luer thread. The rear end of the Luer bulkhead connector is fixedly connected to the sampling tube. The sampling tube may be a PU air pipe. An O-ring is provided on the surface of the lower shell for sealing between the lower shell and the Luer bulkhead connector.

[0011] Preferably, the sampling mechanism also includes a Luer adapter, the filtering mechanism is a Luer water trap filter, the front end of the Luer plate connector is sealed and fixedly connected to the Luer water trap filter via a Luer thread, and the Luer water trap filter is sealed and connected to the Luer adapter via a Luer thread.

[0012] Preferably, a sealing gasket is provided between the upper shell and the lower shell to ensure the sealing performance of the external pump body when in use.

[0013] Preferably, two buttons and a two-digit digital tube are provided on the front of the external pump body, the two buttons are a switch button and a speed adjustment button respectively, the digital tube is used to display the current gear position and power status, and the buttons are sealed with PC stickers with adhesive backing.

[0014] Preferably, an indicator light is provided on the surface of the external pump body, an air pump power detection device is provided on the surface of the main board, and a Bluetooth communication module is provided on the main board.

[0015] Preferably, an EVA pad is fixedly connected to the lower shell, and the micro air pump is fixedly connected to the external pump body through the EVA pad.

[0016] Preferably, a USB charging interface is provided on the surface of the upper shell, and a USB plug is provided in the interface.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model adopts a positioning support and a snap-on connection and fixing method, which can be tightly connected to the host and easy to disassemble and assemble. After being assembled with the host, the soft raised sealing ring can completely seal the host detection port to ensure the sealing and thus ensure the detection accuracy, solving the problem that the gas detection equipment in the current market is large in size, heavy in weight, and inconvenient to pack and carry.

[0019] 2. The utility model can filter out dust particles and other suspended matter in the sampling environment through the filtering mechanism designed at the front end of the Luer plate connector, further improving the accuracy of detection, and realizes the replaceable function through the threaded connection, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the cross-sectional structure of the external pump body of this embodiment;

[0022] Figure 2 This is a schematic diagram of the PC sticker structure of this embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of the USB plug of this embodiment;

[0024] Figure 4 This is a schematic diagram of the screw position structure of this embodiment;

[0025] Figure 5 This is a schematic diagram of the top view of the external pump body of this embodiment;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the external pump body in a top view of the present embodiment;

[0027] Figure 7 This is a schematic diagram of the rear view of the external pump body of this embodiment;

[0028] Figure 8 This is a schematic diagram of the structure of the external pump body from the right side of this embodiment;

[0029] Fig. 9 This is a front view structural diagram of the external pump body of this embodiment;

[0030] Fig.10 This is a left-side structural schematic diagram of the external pump body of this embodiment;

[0031] Fig.11 This is a schematic diagram of the three-dimensional structure of the external pump body and the host assembly of this embodiment;

[0032] Fig.12 This is a schematic diagram of the mainframe structure when viewed from above of this embodiment.

[0033] In the figure: 1. Upper shell; 2. Main board; 3. Sampling tube; 4. Luer plate connector; 5. Nut; 6. Luer water trap filter; 7. Luer adapter; 8. O-ring; 9. Micro air pump; 10. EVA pad; 11. Lower shell; 12. PC sticker; 13. Sealing gasket; 14. USB plug; 15. Screw; 16. External pump body; 17. Host. DETAILED DESCRIPTION

[0034] 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 in 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.

[0035] Example

[0036] See also Figure 1-12 As shown, a portable external pump comprises an external pump body 16 and a host 17, wherein the external pump body 16 is composed of an upper shell 1, a lower shell 11, a micro air pump 9, a main board 2, a filtering mechanism and a sampling mechanism;

[0037] A soft raised sealing ring is provided on the inner side of the upper shell 1, which is integrated with the upper shell 1 through a sleeve. Screws 15 are provided on the surface of the upper shell 1. The lower shell 11 is fixed to the upper shell 1 through the screws 15. A sealing gasket 13 is provided between the upper shell 1 and the lower shell 11 to ensure the sealing of the external pump body when in use.

[0038] The external pump body 16 is supported by the positioning support on the surface of the lower shell 11 to support the main unit 17. The soft raised sealing ring inside the upper shell 1 is pressed on the front of the main unit 17. The buckles on both sides of the upper shell 1 are buckled on the main unit 17. The main unit 17 compresses the surface of the soft raised sealing ring for sealing and fixing. The soft raised sealing ring is made of TPE-V material and is arranged in a runway shape.

[0039] The surface of the soft raised sealing ring is provided with an air outlet pipe, and is connected to the micro air pump 9 through the air outlet pipe. The micro air pump 9 is connected to the main board 2 through a wire. The micro air pump 9 cooperates with the sampling mechanism to collect gas, and then filters it through the filtering mechanism and inputs it into the host 17; when working, because the upper shell 1 and the lower shell 11 are high-strength and high and low temperature resistant ABS and PC, and the soft raised sealing ring is an inner rubber-encapsulated corrosion-resistant TPE-V, the sealing level of the whole machine can reach IP67, so that the portable external pump can be used in complex humid acidic and alkaline environments. In addition, the external pump body 16 is connected to the host 17. The connection and fixation is achieved by supporting the main unit 17 with the positioning support of the lower shell 11, and the TPE-V runway-shaped soft raised sealing ring inside the upper shell 1 is pressed against the front of the main unit 17. The buckles on both sides of the upper shell 1 are buckled on the main unit 17, compressing the TPE-V runway-shaped soft raised sealing ring to seal and fix. The positioning support and buckle connection and fixation method are adopted, which can be tightly connected with the main unit 17 and easy to disassemble and assemble. After being assembled with the main unit 17, the soft raised sealing ring can completely seal the detection port of the main unit 17 to ensure the sealing and thus the detection accuracy, which solves the problem that the gas detection equipment in the current market is large in size and heavy in weight, and is not convenient to pack and carry.

[0040] The sampling mechanism includes a Luer bulkhead connector 4, a nut 5 and a sampling tube 3. The Luer bulkhead connector 4 and the nut 5 are fixedly installed on the lower shell 11. The front end of the Luer bulkhead connector 4 is sealed and fixedly connected to the filtering mechanism through a Luer thread. The rear end of the Luer bulkhead connector 4 is fixedly connected to the sampling tube 3. An O-ring 8 is provided on the surface of the lower shell 11 for sealing between the lower shell 11 and the Luer bulkhead connector 4.

[0041] The sampling mechanism also includes a Luer adapter 7, and the filtering mechanism is a Luer water well filter 6. The front end of the Luer through-plate connector 4 is sealed and fixedly connected to the Luer water well filter 6 through a Luer thread, and the Luer water well filter 6 is sealed and connected to the Luer adapter 7 through a Luer thread. When working, the filtering mechanism designed at the front end of the Luer through-plate connector 4 can filter suspended matter such as dust particles in the sampling environment, further improving the accuracy of detection, and through the threaded connection, a replaceable function is realized, thereby improving the practicability of the device.

[0042] The front of the external pump body 16 is provided with two buttons and a two-digit digital tube, the two buttons are respectively a switch button and a speed adjustment button, the digital tube is used to display the current gear and power status, and the buttons are affixed with a PC sticker 12 with adhesive backing for sealing; when working, the current gear and power status are displayed by the digital tube, and the charging status is displayed by the indicator light. The flow gear can be easily adjusted and the power status can be understood through the digital tube and the indicator light. The PC sticker adhesive backing can protect the buttons from water vapor erosion and increase the service life.

[0043] The surface of the external pump body 16 is provided with an indicator light, the surface of the main board 2 is provided with an air pump power detection device, and the main board 2 is provided with a Bluetooth communication module; when working, Bluetooth communication with the host 17 can be realized through the Bluetooth communication module, and at the same time, in conjunction with the air pump power detection device, the air pump state is independently detected and judged to judge the air path condition, which is displayed on the digital display and displayed on the host 17 through Bluetooth communication, so that the staff can adjust the flow setting on the host 17 according to the needs.

[0044] The lower shell 11 is fixedly connected with an EVA pad 10, and the micro air pump 9 is fixedly connected to the external pump body through the EVA pad 10; when working, the EVA pad 10 can reduce the vibration generated by the micro air pump 9, thereby avoiding reducing noise.

[0045] The upper shell 1 is provided with a USB charging interface on its surface, and a USB plug 14 is provided in the interface; when working, the USB interface can be shielded by the USB plug 14 to prevent impurities and moisture from entering, which may affect the insertion and cause a short circuit.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A portable external pump, characterized in that: It comprises an external pump body (16) and a main machine (17), wherein the external pump body (16) is composed of an upper shell (1), a lower shell (11), a micro air pump (9), a main board (2), a filtering mechanism and a sampling mechanism; A soft raised sealing ring is provided on the inner side of the upper shell (1), which is fused with the upper shell (1) through a sleeve, and screws (15) are provided on the surface of the upper shell (1), and the lower shell (11) and the upper shell (1) are fixedly mounted by the screws (15); The external pump body (16) is supported against the main unit (17) by the positioning support on the surface of the lower shell (11), the soft raised sealing ring inside the upper shell (1) is pressed against the front of the main unit (17), and the buckles on both sides of the upper shell (1) are buckled on the main unit (17), and the main unit (17) compresses the surface of the soft raised sealing ring to seal and fix; An air outlet pipe is provided on the surface of the soft raised sealing ring, and is connected to the micro air pump (9) via the air outlet pipe. The micro air pump (9) is connected to the main board (2) via a wire. The micro air pump (9) cooperates with the sampling mechanism to collect gas, and then filters it through the filtering mechanism and inputs it into the main unit (17).

2. A portable external pump according to claim 1, characterized in that: The soft raised sealing ring is made of TPE-V material and is arranged in a racetrack shape.

3. A portable external pump according to claim 2, characterized in that: The sampling mechanism comprises a Luer bulkhead connector (4), a nut (5) and a sampling tube (3); the Luer bulkhead connector (4) and the nut (5) are fixedly mounted on the lower shell (11); the front end of the Luer bulkhead connector (4) is sealed and fixedly connected to the filtering mechanism via a Luer thread; the rear end of the Luer bulkhead connector (4) is fixedly connected to the sampling tube (3); an O-ring (8) is provided on the surface of the lower shell (11) for sealing between the lower shell (11) and the Luer bulkhead connector (4).

4. A portable external pump according to claim 3, characterized in that: The sampling mechanism also includes a Luer adapter (7), the filtering mechanism is a Luer water trap filter (6), the front end of the Luer plate-penetrating connector (4) is sealed and fixedly connected to the Luer water trap filter (6) via a Luer thread, and the Luer water trap filter (6) is sealed and connected to the Luer adapter (7) via a Luer thread.

5. A portable external pump according to claim 4, characterized in that: A sealing gasket (13) is provided between the upper shell (1) and the lower shell (11) to ensure the sealing performance of the external pump body when in use.

6. A portable external pump according to claim 5, characterized in that: The front of the external pump body (16) is provided with two buttons and a two-digit digital tube, wherein the two buttons are a switch button and a speed adjustment button respectively, and the digital tube is used to display the current gear position and the power status, and the buttons are affixed with a PC sticker (12) with adhesive backing for sealing.

7. A portable external pump according to claim 6, characterized in that: An indicator light is arranged on the surface of the external pump body (16), an air pump power detection device is arranged on the surface of the main board (2), and a Bluetooth communication module is arranged on the main board (2).

8. A portable external pump according to claim 7, characterized in that: An EVA pad (10) is fixedly connected to the lower shell (11), and the micro air pump (9) is fixedly connected to the external pump body via the EVA pad (10).

9. A portable external pump according to claim 8, characterized in that: A USB charging interface is provided on the surface of the upper shell (1), and a USB plug (14) is provided in the interface.

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