KR20230033183A - Hand-held pump apparatus - Google Patents

Abstract

According to the present invention, a portable pump device, as a pump device connected to a sensing device for detecting gas leakage and allowing external air to flow into the sensing device, comprises; a body unit; an inlet unit provided on one side of the body unit so that a hollow tube-shaped measuring tube is connected so that outside air flows into the body unit through the measuring tube; a discharge unit provided on the other side of the body unit to discharge external air flowing into the body unit to the sensing device; and a pump unit which moves the outside air introduced into the inlet unit to the discharge unit. The inlet unit supports an inner circumferential surface of the connected measuring tube, presses an outer circumferential surface of the measuring tube toward the inner circumferential direction, and fixes it.

Description

Portable pump device {HAND-HELD PUMP APPARATUS}

The present invention relates to a portable pump device, and more particularly, to a measuring tube connected to a sensing device for detecting gas leakage and allowing external air to flow into the sensing device, but detachable for measuring a gap in a tank or narrow passage. It relates to a portable pump device capable of detecting flow blockage with a simple structure that more firmly fixes and does not include a separate sensor and passage connection part for measuring the flow rate.

Sensing devices that can detect various gases such as O2, H2S, CO, and combustible gases applied to explosive areas of all industrial sites must have intrinsically safe explosion-proof designs to use industrial plants in explosion-proof areas. The international intrinsic safety standard IECEX standard (IEC60079-0, IEC60079-11) must be satisfied, and to ensure performance as a safety device, measuring gases such as combustible gas, H2S, CO, and O2 require global level performance certification. To satisfy this, performance certification of international standards is required.

Accordingly, high-performance, high-price sensing devices with various functions and low-cost sensing devices designed with only minimum functions to the level of international standards, but with lower prices are being released to suit various environments and purposes.

Here, in the case where the area for measuring gas in the above-mentioned industrial site explosion risk area is a storage tank or a narrow passage, various gases with a risk of explosion are detected by connecting a measuring tube to a portable detection device. A portable pump device may be connected between the measuring tube and the sensing device so that outside air can be smoothly moved to the sensing device.

However, in the process of moving the measurement area or in the process of moving the measurement tube in a narrow space for gas measurement, the movement of the measurement tube causes a gap in the connection between the measurement tube and the pump device, so that the measurement tube is a portable pump device. Departure occurs frequently, and this causes measurement delays or measurement errors to occur, which can cause large-scale accidents.

On the other hand, the conventional portable pump device, by monitoring the output of the sensor through a flow sensor, a pressure sensor, etc., and determining the blockage of the flow rate when the measured value is measured higher than the reference value.

However, when a separate sensor is added for an additional function to a miniaturized portable pump device to have portability convenience, there is a problem in that the internal connection structure of the device is complicated and the cost of parts increases.

The present invention is to solve the above problems, and is connected to a sensing device for detecting gas leakage so that outside air is introduced into the sensing device, but a detachable measuring tube is further provided to measure a gap in a tank or a narrow passage. It is an object to provide a portable pump device capable of detecting flow blockage with a simple structure that is firmly fixed and does not include a separate sensor and passage connection part for measuring the flow rate.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

In order to solve the above problems, a portable pump device according to one embodiment of the present invention is a pump device that is connected to a sensing device for detecting gas leakage and allows external air to flow into the sensing device, including a body unit; an inlet unit provided on one side of the body unit to which a hollow pipe-shaped measuring tube is connected so that the external air is introduced into the body unit through the measuring tube; a discharge unit provided on the other side of the body unit to discharge the outside air introduced into the body unit to the sensing device; and a pump unit for moving the outside air introduced into the inlet unit to the discharge unit, wherein the inlet unit supports an inner circumferential surface of the connected measuring tube and presses an outer circumferential surface of the measuring tube toward the inner circumferential direction. can be fixed

Here, the inlet unit, a fixing part fixed to the body unit with a through hole formed therethrough so that the external air can move to the pump unit; an inner diameter support part formed along a circumference of the through-hole of the fixing part and protruding in a direction opposite to the flow of the external air so that an outer circumferential surface thereof supports an inner circumferential surface of the measuring tube; and an outer diameter pressurizing part provided to be spaced apart from the inner diameter support part by a predetermined distance in a direction from the through hole of the fixing part toward the inner diameter support part and pressing an outer circumferential surface of the measuring tube supported by the inner diameter support part.

At this time, the outer diameter pressing part, one side is fixed along the circumference of the fixing portion, the other side is a close contact member provided so as to be in close contact with or spaced apart from the measuring tube; A pressure member for pressing the contact member may be included so that the other side of the contact member is in close contact with or spaced apart from the measurement tube.

In addition, the contact member may include a fixing area fixed to the fixing part; a connection area extending from the fixing area toward the pressing member so as to be bent in the direction of the external force received from the pressing member; and a close contact area that adheres to or releases contact with the outer circumferential surface of the measurement tube according to the bending of the connection area.

At this time, the adhesion area may be formed to be curved toward the measurement tube so as to enhance adhesion to the measurement tube but not damage the measurement tube, and a plurality of curved portions having a curved point in contact with the measurement tube may be formed.

In addition, a soft non-slip pad may be attached to the curved portion between the curved points adjacent to the measuring tube to increase frictional force.

At this time, the adhesion member may be arranged in plurality, spaced apart from each other by a predetermined distance along the circumference of the fixing part.

In addition, the pressure member is provided with a through hole whose diameter is narrowed from the lower end to the upper end, and the external force can be transmitted to the contact member by contacting the contact member with a pressure area formed on an inner circumferential surface of the through hole.

At this time, the pressing member may move up and down in the inflow direction of the external air by fastening a screw thread formed on an inner circumferential surface of the through hole to a screw thread formed around the fixing part.

Meanwhile, the portable pump device according to one aspect of the present invention may further include a flow path closure detection unit that monitors the drive current value of the pump unit and determines the flow path closure state by comparing the drive current value with a preset reference current value. there is.

In addition, the portable pump device according to another aspect of the present invention may further include a mounting unit fixing the sensing device to the body unit.

The portable pump device of the present invention has the following effects.

First, in the process of moving the measurement area or in the process of moving the measurement tube in a narrow space for gas measurement, a play occurs at the connection between the measurement tube and the portable pump device to prevent the measurement tube from being separated from the portable pump device. By preventing it, there is an effect of reducing the measurement time and improving the measurement accuracy to prevent major accidents in advance.

Second, it is possible to determine the flow rate closure without adding a separate configuration to the portable pump device, which is miniaturized to have portability convenience, so that the cost of parts can be reduced.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

The above summary, as well as the detailed description of the preferred embodiments of the present application set forth below, will be better understood when read in conjunction with the accompanying drawings. Preferred embodiments are shown in the drawings for the purpose of illustrating the present invention. However, it should be understood that this application is not limited to the precise arrangements and instrumentalities shown.
1 is a view showing an overall appearance of a portable pump device according to an embodiment of the present invention;
2 is a view for explaining a state in which a measuring tube is connected to a portable pump device according to an embodiment of the present invention and connected to a sensing device and an inside state of the device;
3 is a view for explaining a body unit of a portable pump device according to an embodiment of the present invention;
Figure 4 is a view for explaining the USB port of the body unit in the portable pump device according to an embodiment of the present invention;
5 is a view for explaining a state in which a flow path closure detection unit is mounted inside a body unit in a portable pump device according to an embodiment of the present invention;
Figure 6 is a view showing the configuration of the inlet unit in the portable pump device according to an embodiment of the present invention;
Figure 7 is a view for explaining the structure of the inlet unit in the portable pump device according to an embodiment of the present invention;
Figure 8 is a view for explaining the adhesion member of the inlet unit in the portable pump device according to an embodiment of the present invention;
9 is a view for explaining a filter unit of an inlet unit in a portable pump device according to an embodiment of the present invention;
10 is a view for explaining a modified example of a filter unit in a portable pump device according to an embodiment of the present invention;
11 is a view for explaining a mounting unit in a portable pump device according to another embodiment of the present invention;
12 is a view for explaining a mounting unit in a portable pump device according to another embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention in which the object of the present invention can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numeral are used for the same configuration, and additional description thereof will be omitted.

1 is a view showing an overall appearance of a portable pump device according to an embodiment of the present invention, and FIG. 2 is a view showing a measuring tube connected to a portable pump device according to an embodiment of the present invention and connected to a sensing device and the inside of the device 3 is a view for explaining a body unit of a portable pump device according to an embodiment of the present invention, and FIG. 4 is a view for explaining a body unit in a portable pump device according to an embodiment of the present invention. It is a view for explaining a USB port, and FIG. 5 is a view for explaining how a flow path closure detection unit is mounted inside a body unit in a portable pump device according to an embodiment of the present invention, and FIG. It is a view showing the configuration of the inlet unit in the portable pump device according to an embodiment, Figure 7 is a view for explaining the structure of the inlet unit in the portable pump device according to an embodiment of the present invention, Figure 8 is a view of the present invention 9 is a view for explaining the filter part of the inlet unit in the portable pump device according to an embodiment of the present invention, and FIG. A view for explaining a modified example of a filter unit in a portable pump device according to an embodiment of the present invention, FIG. 11 is a view for explaining a mounting part in a portable pump device according to another embodiment of the present invention, and FIG. 12 is a view for explaining the present invention. It is a drawing for explaining a mounting part in a portable pump device according to another embodiment of the present invention.

1 and 2, the portable pump device 10 according to an embodiment of the present invention largely includes a body unit 100, an inlet unit 200, a pump unit 300, and a discharge unit 400. It may include, the detection device (S) is connected to one side of the portable pump device 10 according to an embodiment of the present invention, and the measuring tube (T) is connected to the other side, so that the measurer is exposed to the risk of explosion in the industrial site. It is possible to easily detect various types of gases in the area.

The detection device (S) referred to in the present invention is applied to an explosive zone of an industrial site to detect a gas leak and is provided to detect various gases such as O2, H2S, CO, and combustible, In order to use it in the intrinsic safety explosion-proof design, it must be configured as essential, and if it is prepared to satisfy the international intrinsic safety standard IECEX standard (IEC60079-0, IEC60079-11), its shape, material, and structure can vary, resulting in It will be taken for granted that the scope of the present invention is not limited.

However, for more detailed description, as an example, the portable pump device 10 of the present invention and the sensing device S connected to one side can measure at least one gas from among combustible gas, H2S, CO, and O2 can be arranged so that

At this time, if the measuring tube (T) connected to the other side of the portable pump device 10 of the present invention is introduced into a narrow gap between storage tanks or facilities and can measure gas, the material, thickness, and length may vary. there is.

However, for more detailed description, the measuring tube T may be provided in the form of a soft hollow tube, and at this time, it is made of stainless steel or quartz material to minimize suction loss by weakening adsorption to toxic gas. can be formed as

At this time, the length of the measurement tube (T) may be provided in various lengths within a range that does not exceed a preset minimum measurement delay time.

In the portable pump device 10 according to an embodiment of the present invention connected to the sensing device S and the measuring tube T as described above, the body unit 100 includes inflow and discharge units 200 and 400 to be described later. It may be provided, and the inlet and outlet units 200 and 400 may be connected to the pump unit 300 to be described later.

In other words, a flow path may be formed inside the body unit 100 to deliver external air to the sensing device S.

In addition, units for detecting the above-described closing of the passage or supplying power to the pump unit 300 may be disposed in the body unit 100 .

Specifically, the inlet unit 200 may be connected to the measuring tube T in the form of a hollow tube as described above.

Specifically, the inlet unit 200 may be provided on one side of the body unit 100 so that external air sucked in for gas measurement can be introduced into the body unit 100 through the measuring tube T.

In addition, the discharge unit 400 is provided on the other side of the body unit 100 and discharges the external air introduced into the body unit 100 to the above-described detection device S, so that the detection device S is included in the external air. You can check the presence of gas.

In other words, by forming the inlet unit 200 and the discharge unit 400 described above on one side and the other side of the body unit 100, a flow path may be formed, and external air introduced into the inlet unit 200 is discharged from the discharge unit ( 400) may be transmitted to the sensing device (S).

At this time, the measuring tube T is connected to the inflow unit 200 and has a predetermined length so that outside air can flow in from various positions in a narrow or special measuring space without problems. can be made long.

In this case, in order to minimize the measurement delay time that may occur, a pump unit 300 may be included inside the body unit 100 to move external air introduced into the inflow unit 200 to the discharge unit 400 .

For example, assuming that the inlet unit 200 is disposed above the body unit 100 and the discharge unit 400 is disposed below the body unit 100, a pump unit ( 300) may be fixed.

At this time, one side of the inlet unit 200 and the pump unit 300 are connected by one tube, and at the same time, the other side of the pump unit 300 and the discharge unit 400 are connected by another tube, so that the pump unit 300 External air introduced into the inlet unit 200 by the driving of may be discharged to the discharge unit.

Structures of the body unit 100, the inlet unit 200, and the discharge unit 400 for performing the above-described process are described in detail through drawings as follows.

First, as shown in FIGS. 3 to 5 , the body unit 100 may specifically include a first case 101 and a second case 102 .

In other words, the body unit 100 includes a pump unit 300 mounted therein, a connection structure between the pump unit 300, the inlet unit 200, and the discharge unit 400, a flow path closure detection unit 500 to be described later, and a power supply. The first and second cases may be provided in a form that is coupled to or separated from each other to perform a function of absorbing an external shock to the unit 600 and preventing damage, and to facilitate maintenance.

At this time, if the body unit 100 can perform the above-described impact and damage prevention function, the material may be varied to at least one of hard and soft materials, and it is natural that the scope of the present invention is not limited due to this. However, for more detailed description, as an example, the body unit 100 may be made of a hard material to prevent the position of each unit mounted therein from being changed.

As described above, when the body unit 100 is divided into the first and second cases, the LED lamp 140 is disposed on the outer surface of the first case 101 so that the measurer can check whether the body unit 100 is turned on or off and the driving state. do.

At this time, a button 120 is provided on the outer surface of the first case 101 so that the measurer can selectively turn on or off the pump device.

In addition, the inlet unit 200 is fixed to the upper part of the first case 101, and the discharge unit 400 is fixed to the lower part of the first case 101. At this time, the inlet unit 200 and the discharge unit 400 They may be arranged to communicate with each other.

In addition, a strap holder 160 for fixing the strap may be disposed in the first case 101, and may be fixed, for example, to the top of the first case 101, that is, to one side of the inlet unit 200. there is.

Here, the position of the strap holder 160 may vary.

For example, as described above, the inlet unit 200 may be fixed to one side of the inlet unit 200 so that the inlet unit 200 faces upward when it is worn around the observer's neck, and its position is sliding within the first case 101. It may be provided so that it can be changed.

In addition, the strap holder 160 may be provided to be freely detachable at a preset position in the first case 101 and the second case 102 .

Next, when the second case 102 is coupled to the above-described first case 101, the second case 102 and the inner surface to prevent interference with the units provided inside the first case 101 By partially protruding toward the outer surface, additional space may be secured when coupled with the first case 101 .

In addition, a USB port 180 is provided in the second case 102 to supply external power to the flow path closure detection unit 500 to be described later.

In addition, the second case 102 has a buzzer 190 and is connected to the flow path closure detection unit 500 to be described later, so that when abnormal operation is stopped or when the power is turned on or off, the flow rate according to the preset conditions is determined. It may be arranged to generate a corresponding sound.

The above-described first case 101 and second case 102 are for explaining a state in which the body unit 100 is divided into a plurality of pieces and coupled, and the second case 102 includes the aforementioned first case 101 Even if the configuration of is applied or the configuration of the second case 102 described above is applied to the first case 101, it will be obvious that it belongs to the scope of the present invention.

Next, as shown in FIGS. 6 to 10, the inlet unit 200 to which the above-described measuring tube (T) is connected supports the inner circumferential surface of the connected measuring tube (T) and moves the outer circumferential surface of the measuring tube (T) toward the inner circumferential direction. The measuring tube (T) can be firmly fixed so as not to be separated from the inlet unit 200 by pressing.

Specifically, the inflow unit 200, It may largely include a fixing part 220, an inner diameter support part 240, and an outer diameter pressing part 260.

The fixing part 220 is fixed to the body unit 100 and has a through hole formed at the center side, and external air is supplied to the pump unit through a passage connecting the through hole and the pump unit 300, that is, one tube. 300).

In this case, the inner diameter support part 240 may be provided to support the inner circumferential surface of the measuring tube T connected to the through hole in the fixing part 220 .

Specifically, the inner diameter support part 240 may be formed along the circumference of the through hole of the fixing part 220, and also in the opposite direction to which the outside air flows, that is, as shown in the drawing, the inner circumferential surface of the measuring tube T It can protrude along.

Therefore, the outer circumferential surface of the inner diameter support part 240 formed along the circumference of the through hole of the fixing part 220 can support the inner circumferential surface of the measuring tube T.

In FIG. 7 described above, the inner diameter support part 240 and the measuring tube T are expressed as being spaced apart from each other, but the outer diameter of the inner diameter support part 240 is equal to or larger than the inner diameter of the measuring tube T. By being provided, when the measuring tube (T) is drawn into the inner diameter support part 240, the inner diameter support part 240 and the measuring tube T can be tightly adhered to each other.

At this time, the outer diameter pressing part 260 presses the outer circumferential surface of the measuring tube T supported by the inner diameter supporting part 240, so that the measuring tube T can be firmly fixed to the hydraulic unit.

Specifically, the outer diameter pressing part 260 may be provided to be spaced apart from the inner diameter support part 240 by a predetermined distance in a direction from the through hole of the fixing part 220 toward the inner diameter support part 240 .

In other words, the inner diameter support part 240 is formed on the upper surface of the fixing part 220 along the circumference of the through hole formed in the center of the fixing part 220, and is spaced apart from the inner diameter support part 240 by a predetermined distance to form the inner diameter support part 240. An outer diameter pressing portion 260 may be provided to surround the.

Therefore, the outer circumferential surface of the inner diameter support part 240 and the inner circumferential surface of the measuring tube T may face each other, and the outer circumferential surface of the measuring tube T may face the inner circumference of the outer diameter pressing part 260.

Specifically, the outer diameter pressurizing part 260 includes the contact member 262 and the pressing member 264 to pressurize the outer circumferential surface of the measuring tube T supported by the inner diameter support part 240 or to release the pressure.

For example, one side of the adhesion member 262 is fixed along the circumference of the fixing part 220, and the other side may be provided so as to be in close contact with or spaced apart from the measuring tube (T).

As shown in FIG. 7 described above, the contact member 262 may be fixed to the outer circumference of the fixing part 220 .

The fixing area 262a of the contacting member 262 may be integrally provided with the fixing part 220 in order to strengthen the fixing force between the contacting member 262 and the fixing part 220, and in some cases, the contacting member 262 The fixing area 262a of the outer side of the fixing part 220 in the through-hole on the upper surface of the fixing part 220 so that it can be efficiently adhered to the outer circumferential surface of the measuring tube (T) in correspondence with the thickness of various measuring tubes (T). It may be provided so that the position is variable in the circumferential direction.

As shown in FIG. 8 described above, in the adhesion member 262, the connection area 262b extends based on the fixing area 262a fixed to the fixing part 220, and the connection area 262b has an adhesion area. (262c) may be extended to configure one contact member (262).

When an external force is received from a pressing member 264 to be described later, the connection region 262b may be bent in the direction of the external force and an extended contact region 262c may be adjacent to the outer circumferential surface of the measuring tube T.

At this time, the connection area 262b may be provided with elasticity that can be restored to its initial position and shape when the external force is released, and at this time, the external force is transmitted beyond the allowable stress and the connection area 262b is permanently deformed or destroyed. If not, the material of the contact member 262 may be varied, so it will be taken for granted that the scope of the present invention is not limited.

In other words, the connection area 262b may move the position of the contact area 262c through elastic deformation and restore it to a preset original position.

At this time, the contact area 262c may be brought into close contact with or released from the outer circumferential surface of the measuring tube T according to bending or bending of the above-described connection area 262b, that is, elastic deformation.

At this time, the contact area 262c may have a curved portion 262c1 curved toward the measurement tube T.

Through the above-described elastic deformation of the connection region 262b, the curved points of the plurality of curved portions 262c1 come into contact with the outer circumferential surface of the measuring tube T, so that the adhesion to the measuring tube T is strengthened while the measuring tube T Do not damage by pressure.

In addition, the adhesion member 262 may be arranged in plurality along the circumference of the fixing part 220 and spaced apart from each other by a predetermined distance.

Therefore, the adhesion member 262 can receive the pressing force of the pressing member 264 to be described later and evenly pressurize the outer circumferential surface of the measuring tube T without mutual interference.

Furthermore, the curved part 262c1 can increase the frictional force between the measurement tube T and the curved point by attaching a soft anti-slip pad between the aforementioned curved points.

At this time, the pressure member 264 may serve to press the adhesion member 262 so that the other side of the above-described adhesion member 262 may come into close contact with the measurement tube T or be disconnected from the measurement tube T.

In other words, the pressing member 264 causes the above-described adhesion member 262 to be elastically deformed toward the measurement tube T so as to be in close contact with the measurement tube T, and can maintain it.

In addition, the pressure member 264 may be provided so that the contact member 262 is spaced apart from the measuring tube T by canceling transmission of external force toward the contact member 262 that maintains contact.

For example, the pressing member 264 may be provided with a through hole whose diameter becomes narrower from the lower end to the upper end.

Specifically, assuming that the diameter is A1 by a distance A from the top of the through hole of the pressing member 264 downward, the diameter of the through hole may be rapidly larger than A1 by a distance B downward from the aforementioned distance A.

Accordingly, as shown in FIG. 7 , a stepped area, that is, a pressing area 264a may be formed in the B distance area.

At this time, the pressing member 264 can transmit an external force to the pressing member 262 by bringing the contacting member 262 into contact with the pressing area 264a.

Here, the pressing member 264, if the external force can be transmitted to the contacting member 262 by bringing the contacting member 262 into contact with the pressing region 264a, the state in which the pressing region 264a is brought into contact with the contacting member 262 The maintenance method may vary, and it will be taken for granted that the scope of the present invention is not limited thereby.

However, for more detailed description, as an example, the pressing member 264 may have a screw thread formed on the other side of the inner circumferential surface of the aforementioned through hole.

At this time, the pressing member 264 may be provided to be fastened to a screw thread formed along the circumference of the fixing part 220 .

That is, in other words, the pressing member 264 may be provided to move up and down while rotating around the fixing part 220 in the direction of inflow of the external air.

Therefore, the measurer fixes the measuring tube (T) to the inner diameter support part 240 in a state where the pressure member 264 is primarily hung on the measuring tube (T).

Next, when the pressing member 264 hanging on the measuring tube T is fastened to the screw thread formed in the fixing part 220, the pressing member 264 moves downward toward the main body and the pressing area 264a comes into close contact. By holding down the area 262c, the measuring tube T can be firmly fixed to the inlet unit 200.

As shown in the drawing, the inlet unit 200 may further include a filter unit 280.

The filter part 280 is largely disposed at the lower end of the fixing part 220 and is inserted into the body unit 100, the fitting member 282, and the first filter part 282 disposed in the fitting member 282 to prevent foreign matter from penetrating into the flow path. A filter 284 may be included.

Also, in some cases, the filter unit 280 may further include a second filter 286 to enhance blocking power against foreign substances.

Meanwhile, the portable pump device 10 having the configuration described above may further include a flow path closure detection unit 500 .

The flow path closure detection unit 500 may be provided to monitor the drive current value of the pump unit 300 and compare the drive current value measured in real time with a preset reference current value.

Finally, the passage closure detection unit 500 determines whether the passage is closed through the above-described comparison, and when the passage is closed, the measurer may be notified through the buzzer 190 or the LED lamp.

At this time, the channel closure detection unit 500 may be connected to the control server through wireless communication by having a communication module, when the channel is closed.

Therefore, even if the measurer does not recognize the passage closure due to a failure of the buzzer 190 or the LED lamp 140, the control server notifies the measurer of the closed situation to the external terminal of the measurer, so the measurer can use the above-mentioned buzzer 190 and LED lamp. (140) Even if it is damaged, it is possible to recognize the passage closure.

11 and 12, portable pump devices 20 and 30 according to another embodiment of the present invention include a body unit 100, an inlet unit 200, a pump unit 300, and a discharge unit 400. Including, the mounting unit 700 may be further included.

In addition, at least one of the flow path closure detection unit 500 and the power unit 600 may be further included.

Here, the body unit 100, the inflow unit 200, the pump unit 300, the discharge unit 400, the flow path closure detection unit 500, and the power unit 600 are portable pump devices according to an embodiment of the present invention. Since the body unit 100, the inlet unit 200, the pump unit 300, the discharge unit 400, the flow path closure detection unit 500, and the power unit 600 described in (10) are identical and similar, the same drawing numbers are given. and the description of its function and structure will be omitted and only the other parts will be described.

The mounting unit 700 may be connected to the body unit 100 to fix the sensing device S to the body unit 100, and as shown in the drawing, may have various shapes depending on the size of the sensing device S to be mounted. can be provided.

For example, the mounting unit 700 is connected to surround the lower circumference of the body unit 100 to secure a space where the sensing device S is connected.

At this time, the mounting unit 700 may be provided so that both side surfaces of the sensing device S and the upper side of the sensing device S connected to the discharge unit 400 are fixed.

Furthermore, although not shown in the drawing, the mounting unit 700 is rotated while fixing both side surfaces and the upper side of the above-described sensing device (S) and further includes a rotation fixing member for fixing the lower side of the sensing device (S). 700) and the detection device (S) may strengthen the fixing force.

In addition, the mounting unit 700 is formed symmetrically with respect to the sensing device (S) mounted on the center side and is provided to slide toward the sensing device (S), so that sensing devices (S) of various sizes can be fixed. may be provided.

Therefore, the portable pump device examined through various embodiments of the present invention moves between the measuring tube and the pump device due to the movement of the measuring tube in the process of moving the measuring area or in the process of moving the measuring tube in a narrow space for gas measurement. Since it is possible to prevent the measurement tube from being separated from the portable pump device due to a gap in the connecting part, it is possible to shorten the measurement time and improve the measurement accuracy to prevent large-scale accidents in advance, and it is miniaturized for portability convenience. It is possible to detect and determine the flow closure without adding a separate configuration to the structure, which has the effect of reducing the cost of parts.

As described above, the preferred embodiments according to the present invention have been reviewed, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope in addition to the above-described embodiments is a matter of ordinary knowledge in the art. It is self-evident to them. Therefore, the embodiments described above are to be regarded as illustrative rather than restrictive, and thus the present invention is not limited to the above description, but may vary within the scope of the appended claims and their equivalents.

S: sensor
T: measuring tube
10: portable pump device
100: body unit
101: first case
102: second case
120: button
140: LED lamp
160: strap holder
180: USB port
190: buzzer
200: inflow unit
220: fixing part
240: inner diameter support
260: outer diameter pressing part
262: close member
262a: fixed area
262b: connection area
262c: close contact area
262c1: curved part
264: pressing member
264a: pressurized area
280: filter unit
282: fitting member
284 first filter
286: second filter
300: pump unit
400: discharge unit
500: flow path closure detection unit
600: power unit
700: mounting unit

Claims (10)

A pump device connected to a sensing device for detecting gas leakage and allowing external air to flow into the sensing device,
body unit;
an inlet unit provided on one side of the body unit to which a hollow pipe-shaped measuring tube is connected so that the external air is introduced into the body unit through the measuring tube;
a discharge unit provided on the other side of the body unit to discharge the outside air introduced into the body unit to the sensing device; and
And a pump unit for moving the external air introduced into the inlet unit to the discharge unit,
The intake unit is
Characterized in that the inner circumferential surface of the connected measuring tube is supported, and the outer circumferential surface of the measuring tube is pressed and fixed in the direction of the inner circumferential surface.
portable pump device. According to claim 1,
The intake unit is
a fixing part fixed to the body unit with a through hole formed therethrough so that the external air can move to the pump unit;
an inner diameter support part formed along a circumference of the through hole of the fixing part and protruding in a direction opposite to the flow of the outside air, the outer circumferential surface of which supports the inner circumferential surface of the measuring tube; and
characterized in that it includes an outer diameter pressing part provided to be spaced apart from the inner diameter support part by a predetermined distance in a direction from the through hole of the fixing part toward the inner diameter support part and pressing an outer circumferential surface of the measuring tube supported by the inner diameter support part,
portable pump device. According to claim 2,
The outer diameter pressing part,
One side is fixed along the circumference of the fixing part, the other side is provided so as to be in close contact with or spaced apart from the measuring tube;
Characterized in that it comprises a pressing member for pressing the contact member so that the other side of the contact member is in close contact with or spaced apart from the measuring tube,
portable pump device. According to claim 3,
The adhesion member,
a fixing area fixed to the fixing part;
a connection area extending from the fixing area toward the pressing member so as to be bent in the direction of the external force received from the pressing member; and
Characterized in that it includes a close contact area that is in close contact with or released from the outer circumferential surface of the measuring tube according to the bending of the connection region.
portable pump device. According to claim 4,
The contact area is
Characterized in that a plurality of curved portions are formed to be curved toward the measuring tube so that the measuring tube is not damaged while enhancing the adhesion to the measuring tube, so that the curved point is in contact with the measuring tube.
portable pump device. According to claim 5,
The curved part,
Characterized in that a soft non-slip pad is attached between the measuring tube and the adjacent curved point to increase the frictional force,
portable pump device. According to claim 4,
The adhesion member,
Characterized in that a plurality of pieces are arranged at a predetermined distance along the circumference of the fixing part,
portable pump device. According to claim 3,
The pressing member,
Characterized in that a through hole whose diameter becomes narrower from the bottom to the top is provided, and the external force is transmitted to the adhesion member by contacting the adhesion member to a pressing area formed on an inner circumferential surface of the through hole.
portable pump device. According to claim 8,
The pressing member,
Characterized in that the screw thread formed on the inner circumferential surface of the through hole moves up and down in the inflow direction of the external air by being fastened to the screw thread formed around the fixing part.
portable pump device. According to claim 1,
Characterized in that it further comprises a flow path closure detection unit that monitors the drive current value of the pump unit and compares the drive current value with a preset reference current value to determine the flow path closure state.
portable pump device.

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