CN111207055A

CN111207055A - Low-voltage pressure-relief inflator pump device

Info

Publication number: CN111207055A
Application number: CN202010025179.1A
Authority: CN
Inventors: 郭谦永
Original assignee: Zhejiang Duojia Electromechanical Technology Co Ltd
Current assignee: Zhejiang Duojia Electromechanical Technology Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-05-29

Abstract

The invention discloses a low-voltage pressure-relief inflator pump device, which comprises an air outlet part, a seat body, a check head, a spring, an air outlet pipe and an external connector, wherein a ventilation cavity is arranged in the seat body and is communicated with an air outlet of the air outlet part, the check head is movably arranged at an air inlet of the ventilation cavity and seals the air inlet under the pushing of the spring, the air outlet pipe is communicated with the air outlet of the ventilation cavity, the external connector is arranged on the air outlet of the air outlet pipe, the power of the air outlet part is a motor, the working voltage of the motor is 3.7V, a pressure relief device is also arranged on the side surface of the seat body and is communicated with the middle part of the ventilation cavity.

Description

Low-voltage pressure-relief inflator pump device

Technical Field

The invention relates to the technical field of inflator pumps, in particular to a low-voltage pressure-relief inflator pump device.

Background

The inflator pump is an air pump which is characterized in that when a motor is electrified, the motor drives a pinion to rotate, and then the pinion drives a bull gear to push a connecting rod to reciprocate in a cylinder body to perform piston motion, so that pressure difference is generated inside and outside the cylinder body, and gas is discharged out of a cavity. The conventional inflator pump generally has high working voltage, generally 5V or 12V, the working time is short under the voltage, the requirement of long-time endurance cannot be met, an operator cannot confirm the inflation quantity, and the phenomenon of tire burst caused by excessive inflation is easy to occur. The inflator pump is used as standby equipment, so that the problem of hurry of a user can be solved when the tire pressure is low, the charging time can be reduced only when the endurance time is long, and the purposes of one-time charging, long-time standby and multiple use are achieved.

Disclosure of Invention

The invention aims to provide a low-voltage pressure-relief inflator device, which solves the problems of high working voltage of an inflator and easy tire burst during inflation.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a but low-voltage pressure release pump device, includes air outlet part, pedestal, return joint, spring, outlet duct and external joint, the pedestal in be provided with the chamber of ventilating to ventilate the chamber and the gas outlet intercommunication of air outlet part, the mobilizable setting of return joint in the air inlet department in the chamber of ventilating to with the air inlet shutoff under the promotion of spring, the setting of outlet duct intercommunication on the gas outlet in the chamber of ventilating, the external joint set up on the gas outlet of outlet duct, the power of air outlet part be the motor, the operating voltage of this motor is 3.7V, the side of pedestal still is provided with pressure relief device, pressure relief device and the middle part intercommunication in the chamber of ventilating.

Based on the technical scheme, the motor with the working voltage of 3.7 is used, the voltage required by the work of the air pump is reduced, and the storage battery with the same capacity can enable the motor to work for a longer time. The pressure relief device is arranged, and after the air pressure in the air outlet pipe reaches a threshold value, the air in the air outlet pipe is discharged, so that the phenomenon of tire burst caused by overlarge pressure in the air outlet pipe is prevented.

Further, the part of giving vent to anger includes casing, motor, drive mechanism, connecting rod, cylinder body and leather cup, drive mechanism set up in the casing, the motor passes through drive mechanism and drives the connecting rod and be linear reciprocating motion, the setting of cylinder body intercommunication on the side of casing, the leather cup fixed the tip that sets up at the connecting rod to slidable installs in the cylinder body, and keeps sealed with the internal side of cylinder, the leather cup is the piston motion under the drive of connecting rod, the gas outlet of cylinder body and the air inlet intercommunication in breather chamber.

Based on above-mentioned technical scheme, the part compact structure of giving vent to anger, the motor drives the leather cup and makes reciprocating linear motion and form pressure differential in the cylinder body, realizes the function of giving vent to anger.

Furthermore, the transmission mechanism is a bevel gear set and comprises a pinion arranged on an output shaft of the motor and a bull gear rotatably arranged in the shell, the pinion is meshed with the bull gear, a rotating shaft is rotatably arranged between the circle center and the edge of the end face of the bull gear, and the connecting rod is rotatably arranged on the rotating shaft and is parallel to the end face of the bull gear.

Based on the technical scheme, the rotary power of the motor is converted into linear reciprocating motion through the bevel gear set, and the structure is compact.

Further, the transmission ratio of the small gear and the big gear is 8: 45.

based on above-mentioned technical scheme, can increase the displacement of air pump.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a partial schematic view of the invention within a housing;

FIG. 3 is a partial schematic view of the housing of the present invention;

figure 4 is a partial schematic view of the cylinder of the present invention.

In the figure: the device comprises a seat body-1, a check head-2, a spring-3, an air outlet pipe-4, an external joint-5, a ventilation cavity-6, a head-7, a columnar structure-8, a motor-9, a step-10, a pressure relief device-11, a shell-12, a connecting rod-13, a cylinder body-14, a leather cup-15, a pinion-16, a bull gear-17 and a rotating shaft-18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the drawings, the present invention provides an embodiment: the utility model provides a but low-voltage pressure release pump device, includes gas outlet part, pedestal 1, return head 2, spring 3, outlet duct 4 and external joint 5, pedestal 1 in be provided with ventilate chamber 6 to ventilate chamber 6 and the gas outlet intercommunication of gas outlet part, the mobilizable setting of return head 2 at the air inlet of ventilating chamber 6, and with the shutoff of air inlet under the promotion of spring 3, specifically, return head 2 is the rubber buffer, but including the head 7 of shutoff at the air inlet of ventilating chamber 6 and the columnar structure 8 that the diameter is less than the head, ventilate chamber 6 and be provided with the step in the position that is close to the air inlet, spring 3 supports on step 10, and the suit supports on columnar structure 8 and supports with head 7 terminal surface and lean on, the elasticity of spring 3 supports head 7 on the air inlet of ventilating chamber 6, has realized the shutoff, after the part exhaust gas of giving vent to anger, has high-pressure gas and can push the return head 2 open, the air outlet device is characterized in that air is exhausted into the air outlet pipe 4, the air outlet pipe 4 is communicated with an air outlet of the ventilation cavity 6, the outer joint 5 is arranged on the air outlet of the air outlet pipe 4, the outer joint 5 is convenient for the air outlet pipe 4 to be connected with the outside, the power of the air outlet part is the motor 9, the working voltage of the motor 9 is 3.7V, the side surface of the seat body 1 is also provided with a pressure relief device 11, the pressure relief device 11 is communicated with the middle part of the ventilation cavity 6, the pressure relief device 11 can be selected as a common pressure relief valve, such as A41H-16C, the nominal pressure of the pressure relief device 11 is 1.6MPa, the threshold value of the pressure can be confirmed to be uniformly configured with a manufacturer when purchased outside, the air outlet part comprises a shell 12, a motor 9, a transmission mechanism, a connecting rod 13, a cylinder body 14 and a leather cup 15, the transmission mechanism is arranged in the shell 12, the cylinder 14 is communicated with the side surface of the shell 12, the leather cup 15 is fixedly arranged at the end part of the connecting rod 13 and is slidably arranged in the cylinder 14 and keeps sealing with the inner side surface of the cylinder 14, the side surface of the leather cup 15 is provided with a sealing ring which can realize sealing with the inner side surface of the cylinder 14 and realize sliding, the leather cup 15 is driven by the connecting rod 14 to do piston movement, the air outlet of the cylinder 14 is communicated with the air inlet of the ventilation cavity 6, the leather cup 15 generates negative pressure in the piston movement of the cylinder 14 and inputs high-pressure air into the air outlet pipe 4, the transmission mechanism is a bevel gear set and comprises a pinion 16 arranged on the output shaft of the motor 9 and a bull gear 17 rotatably arranged in the shell 12, the pinion 16 is meshed with the bull gear 17, a rotating shaft 18 is rotatably arranged between the circle center and the edge of the end surface of the bull gear 17, and the position of the, The length of the connecting rod 13 is calculated, the connecting rod 13 is rotatably arranged on the rotating shaft 18 and is parallel to the end surface of the large gear 17, and the transmission ratio of the small gear 16 to the large gear 18 is 8: 45.

the motor 9 with the working voltage of 3.7 is used, the voltage required by the work of the air pump is reduced, the storage battery with the same capacity can enable the motor to work for a longer time, and therefore the adaptive output voltage configurator needs to be updated on the original storage battery. The pressure relief device 11 is additionally arranged, after the air pressure of the pressure relief device 11 in the air outlet pipe 4 reaches a threshold value, the air in the air outlet pipe 4 is discharged, the threshold value is set by a host factory, the pressure relief valve is provided with a corresponding threshold value by a pressure relief valve configuration factory, and the pressure relief valve prevents the phenomenon that the tire burst happens due to overlarge pressure in the air outlet pipe 4. The air outlet part has a compact structure, and the motor 9 drives the leather cup 15 to do reciprocating linear motion in the cylinder body 14 and form pressure difference in the cylinder body 14, so that the air outlet function is realized. The power of the motor rotating by 9 is converted into linear reciprocating motion through the bevel gear set, and the structure is compact. The transmission ratio of the small gear 16 to the large gear 17 is 8: 45, unlike the conventional 1:5, the air displacement of the air pump can be increased.

Cylinder body 14 is installed on casing 12, and pedestal 1 installs on cylinder body 14, and cylinder body 14 and casing 12 can set up the screw thread on the air inlet and the gas outlet of butt joint when casting, utilize the form of internal thread and external screw thread to realize connecting to set up sealed neck ring on butt joint air inlet and gas outlet, realize sealedly, also can set up flange joint. The air outlet of the cylinder body 14 and the air inlet of the seat body 1 are respectively provided with an external thread and an internal thread, the connection is realized by using a threaded connection mode, and the butt-jointed air inlet and air outlet are provided with sealing collars to realize sealing, and certainly, flanges can be arranged to realize connection.

The working principle is as follows:

the storage battery supplies power, the motor 9 provides rotary power, the pinion 16 rotates, and when meshing with the bull gear 17, can drive the bull gear 17 in casing 12 internal rotation, the pivot 18 rotates, drive connecting rod 13 and do straight reciprocating motion, leather cup 15 is piston motion in cylinder body 14 this moment, and then form pressure differential in cylinder body 14, finally produce high-pressure gas and input in outlet duct 4, the elasticity of high-pressure gas spring 3 pushes back the end 2 and push away, when the gas of input is too much, form too high pressure in the outlet duct 4, thereby probably blow out, pressure relief device 11 will too much gas discharge this moment, avoid blow out to take place, the security has been improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a but low-voltage pressure release pump device, includes air outlet part, pedestal, return joint, spring, outlet duct and external joint, the pedestal in be provided with the chamber of ventilating to ventilate the chamber and the gas outlet intercommunication of air outlet part, the mobilizable setting of return joint in the air inlet department in the chamber of ventilating to with the air inlet shutoff under the promotion of spring, the setting of outlet duct intercommunication on the gas outlet in the chamber of ventilating, the external joint set up its characterized in that on the gas outlet of outlet duct: the power of the air outlet part is a motor, the working voltage of the motor is 3.7V, the side surface of the seat body is also provided with a pressure relief device, and the pressure relief device is communicated with the middle part of the ventilation cavity.

2. A low voltage, ventable inflator device according to claim 1, wherein: the gas outlet component comprises a shell, a motor, a transmission mechanism, a connecting rod, a cylinder body and a leather cup, wherein the transmission mechanism is arranged in the shell, the motor drives the connecting rod to do linear reciprocating motion through the transmission mechanism, the cylinder body is communicated with the side face of the shell, the leather cup is fixedly arranged at the end part of the connecting rod and is arranged in the cylinder body in a sliding way, the leather cup keeps sealed with the inner side face of the cylinder body, the leather cup is driven by the connecting rod to do piston motion, and the gas outlet of the cylinder body is communicated with the gas inlet of the ventilation cavity.

3. A low voltage, ventable inflator device according to claim 2, wherein: the transmission mechanism is a bevel gear set and comprises a small gear and a large gear, the small gear is arranged on an output shaft of the motor, the large gear is rotatably arranged in the shell and meshed with the small gear, a rotating shaft is rotatably arranged between the circle center and the edge of the end face of the large gear, and the connecting rod is rotatably arranged on the rotating shaft and is parallel to the end face of the large gear.

4. A low voltage, ventable inflator device according to claim 3, wherein: the transmission ratio of the small gear to the big gear is 8: 45.