Inflator pump and pressure gauge convenient to read

Abstract

The utility model relates to the field of inflator pumps, in particular to an inflator pump and a pressure gauge convenient for reading thereof, which comprise a gauge shell, a dial plate and a pressure sensing component which are arranged in the gauge shell, a pointer rotationally arranged at the center of the dial plate, and a transparent surface cover used for covering the dial plate, the pressure sensing assembly comprises a pressure sensor and a transmission mechanism. The pressure sensing assembly is used for detecting fluid pressure and driving the pointer to rotate. An illuminating lamp bead is arranged in the watch shell and located above the dial plate, or the illuminating lamp bead is located below the dial plate, and the dial plate is constructed to be a light-transmitting dial plate. According to the scheme, the illuminating lamp bead is arranged in the meter shell, and the dial plate can be illuminated by arranging the illuminating lamp bead, so that a user can observe the reading of the pressure meter in a narrow and dark space without the help of an external light source.

Description

Technical Field

[0001] The utility model relates to the field of inflatable pumps, in particular to an inflatable pump and a pressure gauge thereof which are convenient for reading. Background Technique

[0002] A pressure gauge refers to an instrument that uses an elastic element as a sensitive element to measure and indicate a pressure higher than the ambient pressure. It is widely used and almost covers all industrial processes and scientific research fields. Specifically, pressure gauges need to be installed on pressure vessels and pressure pipelines to monitor the pressure of the vessels or pipelines in real time. In the existing solutions, when using a pressure gauge, due to the observation angle of the observer, the reading will deviate, or after being installed in a narrow and dark space, it is difficult or impossible for the observer to read the value. Further, a common pressure gauge is connected to a container or pipeline through a tee, forming a connection device between the pressure gauge and the tee. This structure requires screwing and pressing the pressure gauge and the tee tightly against the sealing washer, which brings great inconvenience to the installation operation and is time-consuming and laborious. Summary of the Invention

[0003] In order to solve the above problems, the first object of the utility model is to provide a pressure gauge that is convenient for reading. A lighting bead is arranged inside the watch case. By arranging the lighting bead, the dial can be illuminated, so that the user can observe the reading of the pressure gauge in a narrow and dark space without relying on an external light source.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A pressure gauge convenient for reading, comprising a watch case, a dial and a pressure sensing assembly arranged inside the watch case, a pointer rotatably arranged at the center of the dial, and a transparent face cover covering the upper part of the dial; the pressure sensing assembly includes a pressure sensor and a transmission mechanism, and the pressure sensing assembly is used to detect the fluid pressure and drive the pointer to rotate; the feature is that: a lighting bead is arranged inside the watch case, the lighting bead is above the dial, or the lighting bead is below the dial and the dial is constructed as a light-transmitting dial.

[0006] The utility model adopts the above technical scheme, and this technical scheme relates to a pressure gauge convenient for reading. When this pressure gauge convenient for reading works, it is connected to a fluid pipeline. When the fluid passes through the pressure gauge, the pressure sensor in the pressure sensing assembly generates different deformations based on the fluid pressure, and then drives the pointer to rotate after being amplified by the transmission mechanism, so as to represent the current fluid pressure.

[0007] Among them, the pressure sensing component belongs to the existing technology, and the pressure sensor adopts a Bourdon tube. The deformation of the pressure sensor is amplified by the transmission mechanism to indicate the pressure value more accurately. The transmission mechanism usually includes components such as connecting rods, levers, sector gears and pinions. Amplification process: In the spring tube pressure gauge, the deformation of the spring tube is transmitted to the pointer through the pull rod, lever, sector gear and pinion. In this process, the deformation is gradually amplified, so that the pointer can indicate the measured pressure value on the index plate.

[0008] On this basis, the innovation of this solution is that lighting beads are arranged inside the case, and the dial can be illuminated by the lighting beads, so that the user can observe the pressure gauge reading in a small, dark space without the aid of an external light source.

[0009] The lighting lamp beads of the above solution can be under the dial, which requires the dial to be a light-transmitting dial, so that the dial can also be observed through lighting.

[0010] In a more preferred embodiment, the lighting lamp beads are located inside the case between the dial and the transparent cover, so that the readings on the dial can be directly illuminated, but the lighting lamp beads are required to be outside the rotation path of the pointer, that is, the lighting lamp beads are outside the reading area to avoid the lighting lamp beads interfering with the rotation of the pointer.

[0011] In one embodiment, a wire hole is constructed on the side wall of the watch case, and the wiring of the lighting lamp beads passes through the wire hole. Such a solution requires that the lighting lamp beads are pre-installed in the watch case and routed through the side wall of the watch case.

[0012] In another embodiment, a through hole is opened on the side wall of the case between the dial and the transparent cover, and the lighting lamp beads are installed into the case through the through hole. In this scheme, the through hole can be reserved in the side wall of the case, and the lighting lamp beads can be installed after the pressure gauge is assembled.

[0013] In a further preferred embodiment, a ventilation column is provided on the lower end surface of the watch case, and an air inlet pipe fitting and an air outlet pipe fitting are respectively connected to the two side walls of the ventilation column; the inner end of the ventilation column is connected to the pressure sensor inside the watch case, and the air inlet pipe fitting and the air outlet pipe fitting are used to be respectively connected in series to the ventilation pipeline.

[0014] Preferably, the vent column and the air inlet pipes and the air outlet pipes on both sides thereof are integrally constructed to form a three-way component. In the scheme here, a three-way component is integrally formed below the case of the pressure gauge, which is more convenient to assemble and has better sealing performance.

[0015] Preferably, the air inlet pipe and the air outlet pipe are axially opposite to each other to ensure smooth fluid flow; and a sealing pipe structure is provided on the end pipe openings of the air inlet pipe and the air outlet pipe, so that they can be easily sealed and connected with the main pipeline.

[0016] In a specific solution, the sealed connection structure is constructed as a sealing ring sleeved on the end pipe orifice, and / or the end pipe orifice is constructed as a multi-layer tapered pipe orifice, and the tapered pipe orifice is a cone with a larger inner diameter and a smaller outer diameter.

[0017] The second object of the present utility model is to provide an air pump, which is characterized in that it includes a pressure gauge facilitating reading as described above; the pump core assembly of the air pump is connected in parallel or in series with the lighting lamp beads in the pressure gauge. In this solution, the pressure gauge with lighting lamp beads is installed in the air pump and is connected in series or in parallel with the motor of the pump core assembly. On the one hand, it can illuminate the reading of the pressure gauge and is convenient for use at night; on the other hand, it can also be used as a working indicator light, that is, the pump core assembly and the lighting lamp beads start and stop synchronously, and whether the pump core assembly is running can be known through the light of the lighting lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a perspective view of the side view of the pressure gauge related to the present invention.

[0019] Figure 2 It is a perspective view of the bottom view of the pressure gauge related to the present invention.

[0020] Figure 3 It is a view of the pressure gauge with the transparent face cover in the open state.

[0021] Figure 4 It is a view of the pressure gauge with the transparent face cover in the hidden state.

[0022] Figure 5 It is a cross-sectional view of the pressure gauge related to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from start to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature. Embodiment

[0028] As Figures 1-5 shown, this embodiment relates to a pressure gauge facilitating reading, which includes a case 1, a dial 2 and a pressure sensing assembly disposed inside the case 1, a pointer 3 rotatably disposed at the center of the dial 2, and a transparent face cover 4 covering above the dial 2; the pressure sensing assembly includes a pressure sensor and a transmission mechanism, and the pressure sensing assembly is used to detect the fluid pressure and drive the pointer 3 to rotate. An illuminating lamp bead 5 is disposed inside the case 1, the illuminating lamp bead 5 is above the dial 2, or the illuminating lamp bead 5 is below the dial 2 and the dial 2 is constructed as a light-transmitting dial 2.

[0029] For this pressure gauge facilitating reading, when the pressure gauge works and is connected to a fluid pipeline, when the fluid passes through the pressure gauge, the pressure sensor in the pressure sensing assembly generates different deformations based on the fluid pressure, and then drives the pointer 3 to rotate after being amplified by the transmission mechanism, so as to represent the current fluid pressure.

[0030] Among them, the pressure sensing component belongs to the prior art, and the pressure sensor uses a Bourdon tube. The deformation of the pressure sensor is amplified by a transmission mechanism to more accurately indicate the pressure value. The transmission mechanism usually includes components such as connecting rods, levers, sector gears, and pinions. Amplification process: In a spring tube pressure gauge, the deformation of the spring tube is transmitted to the pointer 3 through a pull rod, a lever, a sector gear, and a pinion. During this process, the deformation is gradually amplified, enabling the pointer 3 to indicate the measured pressure value on the graduated scale.

[0031] On this basis, the innovation of this solution lies in that a lighting bead 5 is provided inside the watch case 1. By setting the lighting bead 5, the dial 2 can be illuminated, so that the user can observe the pressure gauge reading in a narrow and dark space without relying on an external light source. For the lighting bead 5 of the above solution to be below the dial 2, the dial 2 is required to be a transparent dial 2, so that the dial 2 can also be observed through illumination. In a more optimal implementation, the lighting bead 5 is located inside the watch case 1 between the dial 2 and the transparent face cover 4, so that the reading on the dial 2 can be directly illuminated, but it is required that the lighting bead 5 is outside the rotation path of the pointer 3, that is, the lighting bead 5 is outside the reading area to avoid the lighting bead 5 interfering with the rotation of the pointer 3.

[0032] In one implementation, a wire passing hole is constructed on the side wall of the watch case 1 for the wiring of the lighting bead 5 to pass through the wire passing hole. Such a solution requires that the lighting bead 5 be pre-installed in the watch case 1 and the wiring pass through the side wall of the watch case 1. Figure 4 In another implementation shown, a through hole 11 is opened on the side wall of the watch case 1 between the dial 2 and the transparent face cover 4, and the lighting bead 5 is inserted into the watch case 1 through the through hole 11. In this solution, only a through hole 11 needs to be reserved on the side wall of the watch case 1, and the lighting bead 5 can be installed after the pressure gauge is assembled.

[0033] Such as Figure 1 and 2As shown in FIGS. 4 and 5, an air vent column body 61 is provided on the lower end surface of the watch case 1, and an intake pipe member 62 and an exhaust pipe member 63 are respectively connected to two side walls of the air vent column body 61; the inner end of the air vent column body 61 is communicated with a pressure sensor inside the watch case 1, and the intake pipe member 62 and the exhaust pipe member 63 are used to be respectively connected in series in an air vent pipeline. The air vent column body 61 and the intake pipe member and the exhaust pipe member on its two sides are integrally constructed to form a tee member. In this solution, a tee member is integrally formed below the watch case 1 of the pressure gauge, which is more convenient for assembly and has better sealing performance. In addition, the intake pipe member 62 and the exhaust pipe member 63 are axially opposite to ensure smooth fluid flow; and sealing connection structures are provided on the end pipe orifices of the intake pipe member 62 and the exhaust pipe member 63, so that it can be conveniently and hermetically connected to the main pipeline. In a specific solution, the sealing connection structure is constructed as a sealing ring 64 sleeved on the end pipe orifice, and / or the end pipe orifice is constructed as a multi-layer tapered pipe orifice 65, and the tapered pipe orifice 65 is a cone with a larger inner diameter and a smaller outer diameter. Embodiment

[0034] The present embodiment aims to provide an air pump, which includes the pressure gauge convenient for reading described in Embodiment 1; the pump core assembly of the air pump is connected in parallel or in series with the lighting lamp beads 5 inside the pressure gauge. In this solution, the pressure gauge with lighting lamp beads 5 is installed in the air pump and is connected in series or in parallel with the motor of the pump core assembly. On the one hand, it can illuminate the reading of the pressure gauge and is convenient for use at night; on the other hand, it can also be used as a working indicator light, that is, the pump core assembly and the lighting lamp beads 5 start and stop synchronously, and it can be known whether the pump core assembly is running through the light of the lighting lamp beads 5.

[0035] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present 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 a suitable manner in any one or more embodiments or examples.

[0036] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model without departing from the principle and purpose of the present utility model.

Claims

1. A pressure gauge facilitating reading, comprising a case (1), a dial (2) and a pressure sensing component disposed inside the case (1), a pointer (3) rotatably disposed at the center of the dial (2), and a transparent face cover (4) for covering above the dial (2); the pressure sensing component includes a pressure sensor and a transmission mechanism, and the pressure sensing component is used to detect fluid pressure and drive the pointer (3) to rotate; characterized in that: Inside the watch case (1), there is an illuminating lamp bead (5). The illuminating lamp bead (5) is above the dial (2), or the illuminating lamp bead (5) is below the dial (2) and the dial (2) is constructed as a light-transmitting dial (2).

2. The pressure gauge facilitating reading according to claim 1, wherein: The illuminating lamp bead (5) is located inside the watch case (1) between the dial (2) and the transparent face cover (4), and the illuminating lamp bead (5) is outside the rotation path of the pointer (3).

3. The pressure gauge facilitating reading according to claim 2, wherein: A wire passing hole is formed on the side wall of the watch case (1) for the wiring of the illuminating lamp bead (5) to pass through the wire passing hole; or a through hole (11) is formed on the side wall of the watch case (1) between the dial (2) and the transparent face cover (4), and the illuminating lamp bead (5) is inserted into the inside of the watch case (1) through the through hole (11).

4. The pressure gauge facilitating reading according to any one of claims 1 to 3, characterized in that: An air vent cylinder (61) is provided on the lower end face of the watch case (1), and an air inlet pipe component (62) and an air outlet pipe component (63) are respectively connected to both side walls of the air vent cylinder (61); the inner end of the air vent cylinder (61) is communicated with a pressure sensor inside the watch case (1), and the air inlet pipe component and the air outlet pipe component are used for being respectively connected in series in an air pipe path.

5. The pressure gauge facilitating reading according to claim 4, wherein: The air vent cylinder (61) and the air inlet pipe component and the air outlet pipe component on both sides thereof are integrally constructed to form a tee component.

6. The pressure gauge facilitating reading according to claim 4, wherein: The air inlet pipe component (62) and the air outlet pipe component (63) are axially opposite, and sealing connection structures are provided on the end ports of the air inlet pipe component (62) and the air outlet pipe component (63).

7. The pressure gauge facilitating reading according to claim 6, wherein: The sealing connection structure is constructed as a sealing ring (64) sleeved on the end port, and / or the end port is constructed as a multi-layer tapered port (65), and the tapered port (65) is a cone with a larger inner diameter and a smaller outer diameter.

8. An air pump, characterized in that: Including the pressure gauge for easy reading according to any one of claims 1 to 7; the pump core assembly of the air pump is connected in parallel or in series with the illuminating lamp bead (5) inside the pressure gauge.

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