Pressure sensing pump device

Abstract

The utility model discloses a pressure sensing pump device which comprises a pump body assembly and a pressure sensing assembly, a transmission channel and an air pressure detection channel are arranged in the pump body assembly, the head end of the air pressure detection channel is communicated with the transmission channel, and the pump body assembly is provided with an air pressure detection port. The air pressure detection port is communicated with the tail end of the transmission channel, the pressure sensing assembly comprises a pressure sensing elastic piece and an installation gland, the pressure sensing elastic piece is plugged in the air pressure detection port, and the installation gland is connected with the pump body assembly so that the pressure sensing elastic piece can be fixed to the pump body assembly. According to the design, the structure is compact, the occupied space for placement is reduced, the installation is simple and convenient, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pump equipment technology, and in particular to a pressure sensing pump device. Background Technology

[0002] In existing air pump devices, the pump body assembly and the pressure sensing assembly are separate components. The pump body assembly has a transmission channel, an air inlet connected to the first end of the transmission channel, and an air outlet connected to the last end of the transmission channel. The pump body assembly also has a pressure detection port connected to the transmission channel. One end of a flexible hose needs to be connected to the pressure detection port, and the other end of the flexible hose is then connected to the pressure sensing assembly. Part of the gas in the transmission channel can be transmitted to the pressure sensing assembly through the flexible hose. The pressure sensing assembly then detects the gas pressure and generates an electrical signal, which is then transmitted to the pressure sensing assembly.

[0003] However, the pump body assembly and pressure sensing assembly with the above structure are relatively complex, require a lot of installation space, and have a complicated installation process and low production efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pressure-sensing pump device with a compact structure, reduced space occupation, simple installation, and improved production efficiency.

[0005] A pressure-sensing pump device according to a first aspect of the present invention includes: a pump body assembly having a transmission channel and a pressure detection channel therein, the first end of the pressure detection channel being connected to the transmission channel, the pump body assembly having a pressure detection port being connected to the tail end of the transmission channel; and a pressure sensing assembly including a pressure sensing spring and a mounting cap, the pressure sensing spring being sealed in the pressure detection port, the mounting cap being connected to the pump body assembly to fix the pressure sensing spring to the pump body assembly, and the pressure sensing spring being used for electrical connection with a processor.

[0006] A pressure sensing pump device according to an embodiment of the present invention has at least the following beneficial effects:

[0007] This utility model relates to a pressure sensing pump device. The pressure sensing component uses a pressure sensing spring to seal the air pressure detection port. Then, the pressure sensing spring is fixed to the pump body assembly by connecting the mounting cap and the pump body assembly. Airflow is transmitted in the transmission channel, and part of the airflow flows into the air pressure detection channel. The gas pressure acts on the pressure sensing spring, causing the pressure sensing spring to deform and generate an electrical signal, which is received by the processor. This design has a compact structure, reduces the space occupied, is easy to install, and improves production efficiency.

[0008] According to some embodiments of the present invention, the mounting cover and the pressure sensing spring are stacked, and the mounting cover is connected to the pump body assembly to clamp the pressure sensing spring between the mounting cover and the pump body assembly.

[0009] According to some embodiments of the present invention, both the mounting cover and the pump body assembly are provided with multiple screw holes. The screw holes on the mounting cover and the screw holes on the pump body assembly correspond one-to-one. Screws pass through the screw holes on the mounting cover and the screw holes on the pump body assembly in sequence to connect the mounting cover and the pump body assembly.

[0010] According to some embodiments of the present invention, the pressure sensing component further includes a sealing ring, which is disposed between the pressure sensing spring and the pump body assembly such that the sealing ring abuts against the pressure sensing spring and the pump body assembly respectively.

[0011] According to some embodiments of this utility model, the pump body assembly includes a pump housing, a valve core, a piston, and a drive mechanism. The transmission channel and the air pressure detection channel are disposed within the pump housing. The air pressure detection port is disposed within the pump housing. The pump housing also has an air inlet and an air outlet. The air inlet is connected to the first end of the transmission channel, and the air outlet is connected to the last end of the transmission channel. The valve core is movably disposed within the pump housing and is located within the transmission channel to control the opening and closing of the transmission channel. A one-way valve is disposed on the piston. The piston is movably disposed within the transmission channel and is located between the valve core and the air inlet. The drive mechanism is connected to the piston to drive the piston to move. The one-way valve allows gas to enter the transmission channel from the outside while preventing gas from flowing out of the transmission channel.

[0012] According to some embodiments of the present invention, the pump housing is provided with a boss in the transmission channel, and the boss is provided with vents penetrating both ends of the transmission channel. The valve core can move closer to or further away from the vents to control the opening and closing of the transmission channel.

[0013] According to some embodiments of the present invention, the pump body assembly further includes an elastic element disposed in the pump housing and located within the transmission channel. The elastic element contacts the valve core and is capable of driving the valve core closer to the vent to block the vent.

[0014] According to some embodiments of the present invention, the driving mechanism includes a driving component, a turntable, and a push rod. The driving component is rotatably connected to the turntable via a first rotating shaft to drive the turntable to rotate. A second rotating shaft is provided on the turntable, and the second rotating shaft and the first rotating shaft are eccentrically arranged. The first end of the push rod is rotatably connected to the turntable via the second rotating shaft, and the tail end of the push rod is connected to the piston component.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a perspective view of one embodiment of the pressure sensing pump device of this utility model;

[0018] Figure 2 This is a partially exploded view of one embodiment of the pressure sensing pump device of this utility model;

[0019] Figure 3 for Figure 1 A cross-sectional view of section A of one embodiment of the pressure sensing pump device of this utility model.

[0020] Figure label:

[0021] Pump body assembly 100; pump housing 110; transmission channel 111; air pressure detection channel 112; air inlet 113; air outlet 114; air pressure detection port 115; boss 116; vent 117; elastic element 120; valve core 130; piston element 140; drive mechanism 150; drive element 151; turntable 152; push rod 153; first rotating shaft 154; second rotating shaft 155; pressure sensing assembly 200; pressure sensing spring 210; mounting cover 220; screw hole 230; screw 240; sealing ring 250. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1 to 3 As shown, a pressure-sensing pump device according to a first aspect embodiment of the present invention includes a pump body assembly 100 and a pressure sensing assembly 200. The pump body assembly 100 is provided with a transmission channel 111 and a pressure detection channel 112. The first end of the pressure detection channel 112 is connected to the transmission channel 111. The pump body assembly 100 is provided with a pressure detection port 115, which is connected to the tail end of the transmission channel 111. The pressure sensing assembly 200 includes a pressure sensing spring 210 and a mounting cap 220. The pressure sensing spring 210 is sealed in the pressure detection port 115. The mounting cap 220 is connected to the pump body assembly 100 to fix the pressure sensing spring 210 to the pump body assembly 100. The pressure sensing spring 210 is used for electrical connection with a processor.

[0027] The mounting cap 220 can be made of alloy material, the pressure sensing spring 210 can be a conventional pressure strain gauge, which can be circular or elliptical to block the air pressure detection port 115, and the mounting cap 220 can cooperate with the pump body assembly 100 to clamp the edge of the pressure sensing spring 210 to fix the pressure sensing spring 210.

[0028] This utility model relates to a pressure sensing pump device. The pressure sensing component 200 uses a pressure sensing spring 210 to block the air pressure detection port 115. Then, the pressure sensing spring 210 is fixed to the pump body component 100 by connecting the mounting cap 220 and the pump body component 100. Airflow is transmitted in the transmission channel 111, and part of the airflow flows into the air pressure detection channel 112. The gas pressure acts on the pressure sensing spring 210, causing the pressure sensing spring 210 to deform and generate an electrical signal, which is received by the processor. This design has a compact structure, reduces the space occupied by the installation, is easy to install, and improves production efficiency.

[0029] In some embodiments of this utility model, such as Figure 2 As shown, the mounting cap 220 and the pressure sensing spring 210 are stacked, and the mounting cap 220 is connected to the pump body assembly 100 to clamp the pressure sensing spring 210 between the mounting cap 220 and the pump body assembly 100.

[0030] The mounting cap 220 supports the pressure sensing spring 210, so that the edge of the pressure sensing spring 210 is tightly pressed against the edge of the air pressure detection port 115 to prevent gas leakage.

[0031] In some embodiments of this utility model, both the mounting cover 220 and the pump body assembly 100 are provided with a plurality of screw holes 230. The screw holes 230 on the mounting cover 220 and the screw holes 230 on the pump body assembly 100 correspond one-to-one. Screws 240 pass through the screw holes 230 on the mounting cover 220 and the screw holes 230 on the pump body assembly 100 in sequence to connect the mounting cover 220 and the pump body assembly 100.

[0032] Screws 240 are screwed into screw holes 230 on mounting cover 220 and screw holes 230 on pump body assembly 100, thereby making mounting cover 220 tightly connected to pump body assembly 100. Specifically, multiple screw holes 230 are evenly distributed on the outer edge contour of mounting cover 220, so that mounting cover 220 and pump body assembly 100 are tightly connected in the circumferential direction, and gas is not easy to leak.

[0033] In some embodiments of the present invention, the pressure sensing component 200 further includes a sealing ring 250, which is disposed between the pressure sensing spring 210 and the pump body assembly 100 such that the sealing ring 250 presses against the pressure sensing spring 210 and the pump body assembly 100 respectively.

[0034] The sealing ring 250 can be made of materials such as rubber or elastic resin. When subjected to the force of the mounting cover 220, the pressure sensing spring 210 presses against the sealing ring 250, and the sealing ring 250 presses against the pump body assembly 100, thereby effectively preventing gas leakage and ensuring good airtightness.

[0035] In some embodiments of this utility model, such as Figure 3 As shown, the pump body assembly 100 includes a pump housing 110, a valve core 130, a piston 140, and a drive mechanism 150. The transmission channel 111 and the air pressure detection channel 112 are disposed within the pump housing 110. The air pressure detection port 115 is disposed within the pump housing 110. The pump housing 110 also has an air inlet 113 and an air outlet 114. The air inlet 113 is connected to the first end of the transmission channel 111, and the air outlet 114 is connected to the last end of the transmission channel 111. The valve core 130 is movably disposed within the pump housing 110. Furthermore, the valve core 130 is located in the transmission channel 111 to control the opening and closing of the transmission channel 111. A one-way valve (not shown in the figure) is provided on the piston member 140. The piston member 140 is movably disposed in the transmission channel 111 and is located between the valve core 130 and the air inlet 113. The drive mechanism 150 is connected to the piston member 140 to drive the piston member 140 to move. The one-way valve allows gas to enter the transmission channel 111 from the outside while preventing gas from flowing out of the transmission channel 111 to the outside.

[0036] The drive mechanism 150 drives the piston 140 to move in the transmission channel 111. When the piston 140 moves closer to the valve core 130, the transmission channel 111 is compressed. Due to the action of the check valve, the gas cannot flow out of the outside through the check valve in the transmission channel 111. It can only push the valve core 130 to move and open the transmission channel 111. The gas is output from the outlet 114. When the piston 140 moves away from the valve core 130, the valve core 130 closes the transmission channel 111. The outside gas flows into the transmission channel 111 from the outside through the check valve to replenish the gas in the transmission channel 111. The piston 140 moves back and forth towards or away from the valve core 130, so that the gas can be output from the inlet 113 to the outlet 114. The pressure sensing component 200 can detect the gas pressure.

[0037] In some embodiments of this utility model, such as Figure 3As shown, the pump housing 110 is provided with a boss 116 in the transmission channel 111. The boss 116 is provided with vents 117 that pass through both ends of the transmission channel 111. The valve core 130 can move closer to or away from the vents 117 to control the opening and closing of the transmission channel 111.

[0038] Specifically, the pump body assembly 100 further includes an elastic element 120, which is disposed in the pump housing 110 and located in the transmission channel 111. The elastic element 120 contacts the valve core 130 and can drive the valve core 130 to approach the vent 117 to block the vent 117.

[0039] The elastic element 120 can be a spring or an elastic rubber ring. When the piston 140 moves away from the valve core 130, the air pressure decreases, and the elastic element 120 recovers its deformation, causing the valve core 130 to block the vent 117. When the piston 140 moves closer to the valve core 130, the air pressure increases, causing the valve core 130 to press against the elastic element 120. The elastic element 120 is squeezed, causing the valve core 130 to open the vent 117.

[0040] In some embodiments of this utility model, such as Figure 2 , 3 As shown, the drive mechanism 150 includes a drive member 151, a turntable 152, and a push rod 153. The drive member 151 is rotatably connected to the turntable 152 via a first rotating shaft 154 to drive the turntable 152 to rotate. A second rotating shaft 155 is provided on the turntable 152. The second rotating shaft 155 and the first rotating shaft 154 are eccentrically arranged. The first end of the push rod 153 is rotatably connected to the turntable 152 via the second rotating shaft 155, and the tail end of the push rod 153 is connected to the piston member 140.

[0041] The driving component 151 can be a motor or a rotary cylinder. The driving component 151 drives the turntable 152 to rotate. Since the second rotating shaft 155 and the first rotating shaft 154 are eccentrically set, during the rotation of the turntable 152, the turntable 152 drives the push rod 153 through the second rotating shaft 155 to drive the piston 140 to reciprocate near or away from the valve core 130.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pressure-sensing pump device, characterized in that, include: The pump body assembly has a transmission channel and a pressure detection channel inside. The first end of the pressure detection channel is connected to the transmission channel. The pump body assembly is provided with a pressure detection port, which is connected to the tail end of the transmission channel. A pressure sensing assembly includes a pressure sensing spring and a mounting cap. The pressure sensing spring is sealed in the air pressure detection port. The mounting cap is connected to the pump body assembly to fix the pressure sensing spring to the pump body assembly. The pressure sensing spring is used for electrical connection with the processor.

2. The pressure sensing pump device according to claim 1, characterized in that: The mounting cap and the pressure sensing spring are stacked together, and the mounting cap is connected to the pump body assembly to clamp the pressure sensing spring between the mounting cap and the pump body assembly.

3. The pressure sensing pump device according to claim 2, characterized in that: Both the mounting cover and the pump body assembly are provided with multiple screw holes. The screw holes on the mounting cover and the screw holes on the pump body assembly correspond one-to-one. Screws pass through the screw holes on the mounting cover and the screw holes on the pump body assembly in sequence to connect the mounting cover and the pump body assembly.

4. The pressure sensing pump device according to claim 1, characterized in that: The pressure sensing component further includes a sealing ring, which is disposed between the pressure sensing spring and the pump body assembly such that the sealing ring presses against the pressure sensing spring and the pump body assembly respectively.

5. A pressure sensing pump device according to claim 1, characterized in that: The pump assembly includes a pump housing, a valve core, a piston, and a drive mechanism. The transmission channel and the air pressure detection channel are disposed within the pump housing. The air pressure detection port is disposed within the pump housing. The pump housing also has an air inlet and an air outlet. The air inlet is connected to the first end of the transmission channel, and the air outlet is connected to the last end of the transmission channel. The valve core is movably disposed within the pump housing and is located within the transmission channel to control the opening and closing of the transmission channel. A one-way valve is disposed on the piston. The piston is movably disposed within the transmission channel and is located between the valve core and the air inlet. The drive mechanism is connected to the piston to drive the piston. The one-way valve allows gas to enter the transmission channel from the outside while preventing gas from flowing out of the transmission channel.

6. A pressure sensing pump device according to claim 5, characterized in that: The pump housing is provided with a boss in the transmission channel. The boss is provided with vents that pass through both ends of the transmission channel. The valve core can move closer to or away from the vents to control the opening and closing of the transmission channel.

7. A pressure sensing pump device according to claim 6, characterized in that: The pump body assembly also includes an elastic element disposed in the pump housing and located within the transmission channel. The elastic element contacts the valve core and is capable of driving the valve core closer to the vent to block the vent.

8. A pressure sensing pump device according to claim 5, characterized in that: The driving mechanism includes a driving component, a turntable, and a push rod. The driving component is rotatably connected to the turntable via a first rotating shaft to drive the turntable to rotate. A second rotating shaft is provided on the turntable, and the second rotating shaft and the first rotating shaft are eccentrically arranged. The first end of the push rod is rotatably connected to the turntable via the second rotating shaft, and the tail end of the push rod is connected to the piston component.

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