CN220136596U - Inflator pump core gas tightness detection device - Google Patents

Abstract

The utility model provides an air tightness detection device of an inflator pump core, which comprises an air cylinder with an air inlet end and an air outlet end and a piston, wherein the piston is inserted into the air cylinder from one end part; the pressure detection part comprises a detection head, a blocking head and a pressure gauge communicated with the detection head through an air pipe. The utility model realizes the air tightness detection under the condition of simulating the actual use working condition of the pump core, thereby effectively eliminating the one-sided influence of the static air tightness test result and improving the accuracy and reliability of the detection result.

Description

Inflator pump core gas tightness detection device

Technical Field

The utility model belongs to the field of detection devices, and particularly relates to an inflator pump core air tightness detection device.

Background

The core structure-pump core used in the inflation tool (inflator) of the tire generally comprises a cylinder and a piston, wherein the piston is inserted in the cylinder and drives the piston to linearly reciprocate in the cylinder, so that the inflation function is realized.

Currently, after the pump core of an inflator is assembled, the air tightness of the pump core needs to be detected to confirm whether the pump core can meet the use requirement. The patent with the publication number of CN213148242U discloses an air pump airtight detection device, which comprises a frame, the lower mould, go up the mould, press pincers and manometer, lower draw-in groove with the pump looks adaptation has been seted up on the lower mould, go up the last draw-in groove with pump looks adaptation has been seted up on the mould, press pincers's fixed part and frame fixed connection, press pincers's free end and last mould are connected, go up the mould in set up the air flue that is linked together with last draw-in groove, the interface looks adaptation of the air flue and the pump of the air outlet end of air flue, the import department of air flue is connected with tee bend part, tee bend part is linked together with the inlet end of air flue including first interface, second interface and the third interface of intercommunication, the second interface is linked together with the air source through the trachea, the third interface is linked together with the manometer, during the detection, staff puts into the pump in the lower draw-in the groove of lower mould with the pump, pass press pincers lock on the pump this moment, the upper portion of pump inserts in the draw-in groove, and the interface seal of air outlet end and pump, the air outlet end and pump are connected with the interface of pump, tee bend part, the air flue is including the first interface of intercommunication, the air flue is linked up to the air source of the air pump, the air pump is closed to the air pump of the pressure gauge, the real-time has been closed, the time to the air pressure.

However, in the actual detection process, the detection device can only detect the air tightness of the inflator pump under the static state, and the piston of the inflator pump is dynamic during the working process, and obviously, the air tightness detection result of the inflator pump under the static state has one-sidedness, and the air tightness performance of the inflator pump cannot be accurately represented.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing an improved inflator pump core air tightness detection device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the pump core of the inflator pump comprises an air cylinder with an air inlet end and an air outlet end and a piston, wherein the piston is inserted into the air cylinder from one end, the detecting device comprises a detecting platform, a clamping part, a driving part and a pressure detecting part, the clamping part comprises a lower clamping seat, an upper clamping seat which is arranged above the lower clamping seat in an up-down movable manner, and a power part for driving the upper clamping seat, the air cylinder is supported on the lower clamping seat, and the upper clamping seat and the lower clamping seat are clamped relatively and limit the air cylinder in the up-down direction and the axial direction of the air cylinder; the pressure detection component comprises a detection head, a blocking head and a pressure gauge communicated with the detection head through an air pipe, when in detection, the blocking head closes an air inlet end, the detection head is in sealing connection with an air outlet end, and the driving component drives the piston to reciprocate along the axis direction of the air cylinder.

According to one specific and preferred aspect of the utility model, the cylinder is supported horizontally on the lower holder, and the air inlet end extends obliquely upward from the side wall of the cylinder, and the air outlet end extends horizontally from the end face of the cylinder. Here, the connection operation of the detection head and the air outlet end, and the blocking head and the air inlet end is facilitated.

Preferably, the pressure detecting component further comprises a first cylinder and a second cylinder, wherein the first cylinder is used for driving the detecting head to move along the central line direction of the air outlet end and is connected with or separated from the air outlet end; the second cylinder is used for driving the blocking head to reciprocate along the central line direction of the air inlet end and is connected with or separated from the air inlet end. The automatic connection and disconnection are realized, and the operation is simple and convenient; and the tightness of the joint can be ensured, and the accuracy of the detection result is improved.

Specifically, the first cylinder and the second cylinder adopt the same air source, and the detection head and the plugging head are synchronously arranged in a moving way. Here, both can be connected or disconnected simultaneously by one key.

According to still another specific and preferred aspect of the present utility model, the cylinder includes a cylinder body, a shelf plate attached to the cylinder body, wherein the shelf plate extends along an axial direction of the cylinder body; the clamping component further comprises a base fixed on the detection platform, the lower clamping seat is fixedly connected to the top of the base, the frame plate is supported on the top of the base when the cylinder body is supported on the lower clamping seat, and the upper clamping seat moves downwards and compresses the frame plate on the base.

Preferably, the upper clamping seat is recessed upwards from the bottom to form a U-shaped groove, the U-shaped groove penetrates through the upper clamping seat in the axial direction of the cylinder body, and when the cylinder body is detected, the upper clamping seat is pressed on two opposite sides of the frame plate, and the piston penetrates through the U-shaped groove and is inserted into the cylinder body. Here, the clamping is stable.

Specifically, the inner side surface of the bottom opening of the U-shaped groove is in a step shape, and when in detection, the upper clamping seat is respectively abutted against the top surface and the side surface of the frame plate from the inner side surface of the bottom opening of the U-shaped groove. Here, form the spacing to frame plate horizontal direction and vertical direction, improve the stability of cylinder in the testing process.

Preferably, the cylinder body forms an extension part extending along the self axis direction from one end surface, and the air inlet end and the air outlet end are arranged on the extension part; the lower clamping seat comprises a first seat body and a second seat body extending upwards from the first seat body, wherein the cylinder body is supported on the first seat body; the second seat body is recessed inwards from the top surface and forms a groove, and the extension part is inserted into the groove from top to bottom. Here, the positioning and fixing of the cylinder are facilitated.

Specifically, during detection, the two end surfaces of the cylinder body respectively abut against the inner sides of the upper clamping seat and the second seat body.

In addition, the detection platform is further provided with an auxiliary module which extends vertically, and the power piece adopts an air cylinder and is fixed on the auxiliary module. Here, the installation and the implementation are convenient.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model firstly clamps the cylinder through the upper clamping seat and the lower clamping seat, limits the cylinder in the up-down direction and the axial direction of the cylinder, then plugs the air inlet end of the closed cylinder through the plugging head, the detecting head is communicated with the air outlet end of the cylinder, and drives the piston to reciprocate in the cylinder through the driving part so as to simulate the working condition of the actual use of the pump core, and finally judges whether the air tightness of the pump core meets the production requirement through the data fed back by the pressure gauge.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of an inflator pump core air tightness detection device of the present utility model;

fig. 2 is an enlarged schematic view of a three-dimensional structure of the air tightness detection device in fig. 1 (the detection platform is omitted);

FIG. 3 is a schematic perspective view of the clamping member of FIG. 2;

wherein: x, pump core; x1, a cylinder; x10, a cylinder body; a. an extension; d1, an air inlet end; d2, an air outlet end; x11, a frame plate; J. a transmission member; x2, a piston;

1. a detection platform; 10. an auxiliary module;

2. a clamping member; 20. a base; 21. a lower clamping seat; 211. a first base; 212. a second seat body; c1, grooves; 22. an upper clamping seat; c2, a U-shaped groove; 23. a power member;

3. a driving part;

4. a pressure detecting section; 41. a first cylinder; 42. a second cylinder; 43. a detection head; 44. a blocking head; 45. a pressure gauge.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1 to 3, the inflator pump core air tightness detection device according to the present embodiment includes a detection platform 1, a clamping member 2, a driving member 3, and a pressure detection member 4.

Specifically, the inflator pump core X includes a cylinder X1 having an air inlet end d1 and an air outlet end d2, a piston X2, wherein the cylinder X1 includes a cylinder body X10, a frame plate X11 connected to the cylinder body X10, wherein the frame plate X11 extends along an axis direction of the cylinder body X10, the cylinder body X10 forms an extension portion a extending along the axis direction thereof from an end surface away from the frame plate X11, and the air inlet end d1 and the air outlet end d2 are provided on the extension portion a. In some embodiments, the frame plate X11 is used for mounting a transmission member J, where the transmission member J adopts a conventional structure, for example, a transmission member formed by a bearing, a pin shaft and an eccentric gear, and the like, and the transmission member drives the piston X2 to reciprocate in the cylinder X10 along the axis direction of the cylinder X1 under the driving of the driving member 3.

In this example, the clamping component 2 includes a base 20, a lower clamping seat 21 fixedly arranged on the base 20, an upper clamping seat 22 movably arranged above the lower clamping seat 21 up and down, and a power member 23 for driving the upper clamping seat 22, wherein the cylinder X1 is supported on the lower clamping seat 21, and the upper clamping seat 22 and the lower clamping seat 21 are clamped relatively and form a limit to the cylinder X1 in the up-down direction and the axial direction of the cylinder X1.

Specifically, the base 20 is fixed on the detection platform 1, the lower clamping seat 21 is fixedly connected to the top of the base 20, when the cylinder body X10 is supported on the lower clamping seat 21, the frame plate X11 is supported on the top of the base 20, and the upper clamping seat 21 moves downward and compresses the frame plate X11 on the base 20. In some embodiments, a through hole penetrating up and down is formed on the base 20, a cavity for installing electrical equipment is formed inside the detection platform 1, a loosening/clamping key for controlling the clamping part 2, a start/stop key for controlling the driving part 3, and an on/off key for controlling the power supply of the whole device are arranged on the outer side of the detection platform 1, the driving part 3 is arranged in the cavity and penetrates through the through hole on the base 20 upwards to be matched with a transmission part J on the frame board X11, and the driving part 3 adopts a driving motor.

The cylinder X1 is horizontally supported on the lower clamping seat 21, the air inlet end d1 extends obliquely upwards from the side wall of the cylinder X1, and the air outlet end d2 extends horizontally from the end surface of the cylinder X1; the lower clamping seat 21 comprises a first seat body 211 and a second seat body 212 extending upwards from the first seat body 211, wherein the cylinder body X10 is supported on the first seat body 211; the second base 212 is recessed inward from the top surface and forms a groove c 1, and the extension a is inserted into the groove c 1 from top to bottom.

The upper clamping seat 22 is recessed upwards from the bottom to form a U-shaped groove c2, the U-shaped groove c2 penetrates through the upper clamping seat 22 in the axial direction of the cylinder body X10, when in detection, the upper clamping seat 22 is pressed on two opposite sides of the frame plate X11, two end surfaces of the cylinder body X10 respectively abut against the inner sides of the upper clamping seat 22 and the second seat 212, and the piston X2 penetrates through the U-shaped groove c2 and is inserted into the cylinder body X10; the inner side surface of the bottom opening of the U-shaped groove c2 is in a step shape, and when in detection, the upper clamping seat 22 is respectively abutted against the top surface and the side surface of the frame plate X11 from the inner side surface of the bottom opening of the U-shaped groove c 2.

For convenience of implementation, the detection platform 1 is further provided with an auxiliary module 10 extending vertically, and the power piece 23 is fixed on the auxiliary module 10 by adopting an air cylinder.

In this example, the pressure detecting component 4 includes a first cylinder 41, a second cylinder 42, a detecting head 43, a plugging head 44, and a pressure gauge 45 that is communicated with the detecting head 43 through an air pipe, where the first cylinder 41 is used to drive the detecting head 43 to move along the central line direction of the air outlet end d2 and connect with or disconnect from the air outlet end d 2; the second cylinder 42 is used for driving the blocking head 44 to reciprocate along the direction of the central line of the air inlet end d1 and to be connected with or separated from the air inlet end d1, when in detection, the blocking head 44 closes the air inlet end d1, the detection head 43 is in sealing connection with the air outlet end d2, and the driving component 3 drives the piston X2 to reciprocate along the axial direction of the cylinder X1.

Specifically, the first cylinder 41 and the second cylinder 42 adopt the same air source, and the detection head 43 and the blocking head 44 are arranged in a synchronous motion manner; a second cylinder 42 is provided on the auxiliary module 10.

After the detection device is adopted, the cylinder is clamped by the upper clamping seat and the lower clamping seat, the cylinder is limited in the upper and lower direction and the axial direction of the cylinder, then the air inlet end of the cylinder is blocked and closed by the blocking head, the detection head is communicated with the air outlet end of the cylinder, the driving part drives the piston to reciprocate in the cylinder so as to simulate the working condition of the actual use of the pump core, and finally, the air tightness of the pump core is judged to be in accordance with the production requirement by the data fed back by the pressure gauge; in the second aspect, the connection operation of the detection head and the air outlet end and the connection operation of the plugging head and the air inlet end are convenient, and the synchronous and automatic connection and disconnection of the detection head and the plugging head by one key are realized; moreover, the tightness of the joint can be ensured, and the accuracy of the detection result is improved; in the third aspect, the clamping stability of the cylinder in the detection process is improved by forming limit positions on the cylinder in the horizontal direction and the vertical direction

The present utility model has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present utility model and to implement the same, but not to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. An inflator pump core gas tightness detection device, the pump core includes cylinder, the piston that has inlet end and end of giving vent to anger, wherein the piston inserts in the cylinder from an end, its characterized in that: the detection device comprises a detection platform, a clamping part, a driving part and a pressure detection part, wherein the clamping part comprises a lower clamping seat, an upper clamping seat which is arranged above the lower clamping seat in an up-down movable manner, and a power piece for driving the upper clamping seat, the air cylinder is supported on the lower clamping seat, and the upper clamping seat and the lower clamping seat are clamped relatively and limit the air cylinder in the up-down direction and the axial direction of the air cylinder; the pressure detection component comprises a detection head, a blocking head and a pressure gauge communicated with the detection head through an air pipe, when in detection, the blocking head is closed at the air inlet end, the detection head is in sealing connection with the air outlet end, and the driving component drives the piston to reciprocate along the axis direction of the air cylinder.

2. The inflator pump core air tightness detection device of claim 1, wherein: the cylinder is horizontally supported on the lower clamping seat, the air inlet end extends obliquely upwards from the side wall of the cylinder, and the air outlet end extends horizontally from the end face of the cylinder.

3. The inflator pump core air tightness detection device according to claim 1 or 2, characterized in that: the pressure detection component further comprises a first air cylinder and a second air cylinder, wherein the first air cylinder is used for driving the detection head to move along the central line direction of the air outlet end and is connected with or separated from the air outlet end; the second cylinder is used for driving the plugging head to reciprocate along the central line direction of the air inlet end and is connected with or separated from the air inlet end.

4. The inflator pump core air tightness detection device of claim 3, wherein: the first air cylinder and the second air cylinder adopt the same air source, and the detection head and the plugging head are synchronously arranged in a moving way.

5. The inflator pump core air tightness detection device of claim 1, wherein: the cylinder comprises a cylinder body and a frame plate connected to the cylinder body, wherein the frame plate extends along the axis direction of the cylinder body; the clamping component further comprises a base fixed on the detection platform, the lower clamping seat is fixedly connected to the top of the base, when the cylinder body is supported on the lower clamping seat, the frame plate is supported on the top of the base, and the upper clamping seat moves downwards and compresses the frame plate on the base.

6. The inflator pump core air tightness detection device of claim 5, wherein: the upper clamping seat is recessed upwards from the bottom and forms a U-shaped groove, the U-shaped groove penetrates through the upper clamping seat in the axial direction of the cylinder body, and when the detection is carried out, the upper clamping seat is pressed on two opposite sides of the frame plate, and the piston penetrates through the U-shaped groove and is inserted into the cylinder body.

7. The inflator pump core air tightness detection device of claim 6, wherein: the inner side surface of the opening at the bottom of the U-shaped groove is in a step shape, and when in detection, the upper clamping seat is respectively abutted against the top surface and the side surface of the frame plate from the inner side surface of the opening at the bottom of the U-shaped groove.

8. The inflator pump core air tightness detection device of claim 5, wherein: the cylinder body forms an extension part extending along the self axis direction from one end surface, and the air inlet end and the air outlet end are arranged on the extension part; the lower clamp seat comprises a first seat body and a second seat body extending upwards from the first seat body, wherein the cylinder body is supported on the first seat body; the second seat body is recessed inwards from the top surface and forms a groove, and the extension part is inserted into the groove from top to bottom.

9. The inflator pump core air tightness detection device of claim 8, wherein: during detection, two end surfaces of the cylinder body are respectively abutted against the inner sides of the upper clamping seat and the second seat body.

10. The inflator pump core air tightness detection device of claim 1, wherein: the detection platform is further provided with an auxiliary module which extends vertically, and the power piece is fixed on the auxiliary module by adopting an air cylinder.