CN213580077U - Tire valve compression testing arrangement - Google Patents

Abstract

The utility model relates to a tire valve pressurized testing arrangement. The tire valve compression testing device comprises a base, a pressure sensor and a pressure sensor, wherein the base is of a hollow structure, and a transverse partition plate is arranged in the base; the end cover is detachably arranged on the base, and an upper pressure cavity positioned above the diaphragm and a lower pressure cavity positioned below the diaphragm are formed between the base and the end cover; the pneumatic motor is arranged in the lower pressure cavity; the air valve mounting seat is used for mounting a tire air valve to be tested, the air valve mounting seat is arranged in the upper pressure cavity, and the pneumatic motor is used for driving the air valve mounting seat to rotate. The utility model provides a tire valve pressurized testing arrangement, its inside test pressure is adjustable, the tire valve follows the pivoted rotational speed adjustable, whole convenient operation, reliable.

Description

Tire valve compression testing arrangement

Technical Field

The utility model relates to a vehicle inspection technical field especially relates to a tire valve pressurized testing arrangement.

Background

The Tire Pressure Monitoring System (TPMS) is mainly used for automatically monitoring the tire air pressure in real time during the running of an automobile and giving an alarm on the air leakage and low air pressure of the tire so as to ensure the driving safety. The operation of the TPMS can be mainly classified into indirect and direct modes. In the initial indirect TPMS, if the difference between the rotation speed of a certain tire and the rotation speeds of other wheels is detected to be too large, the tire pressure may be abnormal and the driver may be reminded, but the actual tire pressure value cannot be provided to the driver, so the implementation cost is relatively low. At present, the mainstream direct TPMS is provided with a high-sensitivity micro wireless sensing device with a signal transmitting function in a tire, and can provide actual data such as tire pressure, temperature and the like.

At present, when the electromagnetic compatibility test related to the national mandatory certification announcement is carried out, because four tire pressure sensors are simply placed on a test bed, the tire pressure value is not a recommended tire pressure value, and a corresponding separated pressure environment device does not simulate a test environment for matching, for example, when a radiation immunity RI test is carried out, false alarm phenomena such as undervoltage, overvoltage and the like which may occur when the tire pressure is in the recommended tire pressure value cannot be monitored.

As a TPMS regulation having an important influence on automobile safety and fuel consumption, it has been implemented in developed regions such as europe, the united states, japan and the like in succession from 2005. In 2015, in developing countries such as russia, iran and gulf regions, regulations for tire pressure monitoring systems are also enforced, and ECE regulations are generally adopted by developing countries. China issued the national standard GB 26149 and 2017 performance requirement and test method of a passenger vehicle tire air pressure monitoring system in 2017 in 10 months, and the new vehicle model is required to be forcibly assembled with TPMS from 1 month and 1 day in 2019. Therefore, the development of a device which can separately regulate and control the tire pressure and is suitable for the special electrical environment and the shielding effectiveness requirement of an anechoic chamber is beneficial to the development of national mandatory certification. At present, no similar testing device exists in China, and the air valve and the sensor thereof which are positioned in the air valve and the air valve can sense the air pressure when the tire pressure is different and the rotating speed is different and can conduct the data (corresponding to the air pressure of different tires) in time so as to warn the phenomena of over-pressure, under-pressure and the like of the tire.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem of prior art, the utility model provides a tire valve pressurized testing arrangement, its inside test pressure is adjustable, the tire valve is adjustable along with the pivoted rotational speed, whole convenient operation, reliable.

In particular, the utility model provides a tire valve compression testing device, which comprises,

the base is of a hollow structure, and a transverse partition plate is arranged in the base;

the end cover is detachably arranged on the base, and an upper pressure cavity positioned above the diaphragm and a lower pressure cavity positioned below the diaphragm are formed between the base and the end cover;

the pneumatic motor is arranged in the lower pressure cavity;

the air valve mounting seat is used for mounting a tire air valve to be tested, the air valve mounting seat is arranged in the upper pressure cavity, and the pneumatic motor is used for driving the air valve mounting seat to rotate.

According to the utility model discloses an embodiment, the base include the bottom plate and around set up in fixed plate on the bottom plate set up the cross slab on the fixed plate, cross slab and bottom plate form down the pressure chamber, pneumatic motor fixes on the bottom surface of cross slab.

According to the utility model discloses an embodiment, set up the through-hole on the cross slab, go up pressure chamber and lower pressure chamber and pass through the through-hole communicates each other seted up at least first trachea joint and second trachea joint on the fixed plate, first trachea joint is used for right go up pressure chamber and lower pressure chamber and implement pressurization or decompression, second trachea joint is used for the drive the air motor action.

According to the utility model discloses an embodiment be equipped with first annular on the top surface of fixed plate be equipped with first sealing washer in the first annular, first sealing washer is compressed tightly between end cover and the fixed plate.

According to the utility model discloses an embodiment be equipped with the second annular on the bottom surface of fixed plate be equipped with the second sealing washer in the second annular, the second sealing washer is compressed tightly between the bottom surface of bottom plate and fixed plate.

According to the utility model discloses an embodiment still includes a rotation axis, the valve mount pad sets up the top of rotation axis, the bottom of rotation axis with pneumatic motor's output shaft butt joint, pneumatic motor can drive rotation axis rotates.

According to the utility model discloses an embodiment still includes bearing frame and antifriction bearing, the bearing frame sets up on the cross slab, the rotation axis passes through antifriction bearing fixes on the bearing frame.

According to the utility model discloses an embodiment, the valve mount pad extends an annular mounting panel to the horizontal direction at its top periphery a plurality of fixed orificess have been seted up on the annular mounting panel for the installation awaits measuring the tire valve.

According to the utility model discloses an embodiment still be equipped with a plurality of draw-in grooves on the cyclic annular mounting panel and with the locking screw that the draw-in groove corresponds, draw-in groove and locking screw are used for the fixed examination of awaiting measuring the tire valve.

According to an embodiment of the present invention, a handle is provided outside the fixing plate.

The utility model provides a pair of tire valve pressurized testing arrangement, pressure chamber and lower pressure chamber are gone up to its inside formation, adopt pneumatic motor drive valve mount pad to rotate for inside test pressure is adjustable, the tire valve is adjustable along with the pivoted rotational speed, whole convenient operation, reliable.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 shows a front view of a tire valve compression testing apparatus according to an embodiment of the present invention.

Fig. 2 is a perspective view showing a tire valve compression testing apparatus according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view along AA of fig. 1.

Fig. 4 is a perspective view of fig. 2 with the end cap removed.

FIG. 5 is a schematic diagram of the structure of the tire valve of FIG. 4.

Wherein the figures include the following reference numerals:

base 101 of tire valve compression testing device 100

End cap 102 pneumatic motor 103

Valve mount 104 diaphragm 105

Upper pressure chamber 106 and lower pressure chamber 107

Tire valve 108 base plate 109

Fixing plate 110 through hole 111

First air pipe connector 112 and second air pipe connector 113

First ring groove 114 and first sealing ring 115

Second ring groove 116 and second seal ring 117

Rotating shaft 118 bearing block 119

Annular mounting plate 121 of rolling bearing 120

Fixing hole 122 slot 123

Locking screw 124 handle 125

Valve body 126 gasket 127

Nut 128 fixing shaft 129

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Fig. 1 shows a front view of a tire valve compression testing apparatus according to an embodiment of the present invention. Fig. 2 is a perspective view showing a tire valve compression testing apparatus according to an embodiment of the present invention. Fig. 3 is a cross-sectional view along AA of fig. 1. Fig. 4 is a perspective view of fig. 2 with the end cap removed. As shown, a tire valve compression testing apparatus 100 generally includes a base 101, an end cap 102, a pneumatic motor 103, and a valve mount 104.

The base 101 is a hollow structure. A bulkhead 105 is provided within the base 101.

The cover 102 is detachably mounted on the base 101 by screws. Referring to fig. 3, an upper pressure chamber 106 above the diaphragm 105 and a lower pressure chamber 107 below the diaphragm 105 are formed between the base 101 and the end cap 102. Conventionally, the upper pressure chamber 106 and the lower pressure chamber 107 are at the same gas pressure. In one embodiment, the end cap 102 is made of a transparent material to facilitate viewing from the outside by an operator.

The air motor 103 is disposed within the lower pressure chamber 107.

The primary function of the valve mount 104 is to mount the tire valve 108 to be tested. The valve mount 104 is disposed within the upper pressure chamber 106. The air motor 103 is used for driving the valve mounting seat 104 to rotate.

The utility model provides a pair of tire valve pressurized testing arrangement 100 is in test work, and the tire valve 108 that will await measuring is installed on valve mount pad 104, covers end cover 102, provides inside gas pressure for last pressure chamber 106 and lower pressure chamber 107, opens pneumatic motor 103 after that and drives valve mount pad 104 and rotate in order to accomplish the test to tire valve 108.

Preferably, referring to fig. 2 and 3, the base 101 includes a base plate 109 and a fixing plate 110 disposed around the base plate 109, both of which are fixed by screws. The fixed plate 110 is provided with a diaphragm plate 105. As shown, in the present embodiment, the top surface of the fixing plate 110 forms a sunken step, and the diaphragm 105 is mounted on the step. The diaphragm plate 105 is spaced apart from the top surface of the fixed plate 110. In other words, the upper pressure chamber 106 is partially submerged within the fixed plate 110, which provides more space between the valve mount 104 and the diaphragm plate 105 for the installation of the tire valve 108 to be tested. The bottom plate 109, the diaphragm plate 105 and the fixing plate 110 form a lower pressure chamber 107 therebetween, the air motor 103 is fixed to the bottom surface of the diaphragm plate 105 by screws, and the output shaft of the air motor 103 passes upward through the diaphragm plate 105.

Preferably, referring to fig. 4, the diaphragm 105 is provided with a plurality of through holes 111. In the present embodiment, as shown in fig. 4, the upper pressure chamber 106 and the lower pressure chamber 107 are communicated with each other through 6 through holes 111 of the diaphragm 105, so that the internal pressures of the upper pressure chamber 106 and the lower pressure chamber 107 are the same. Further, at least a first air pipe joint 112 and a second air pipe joint 113 are opened on the fixing plate 110. The first gas pipe connection 112 is used to pressurize or depressurize the upper pressure chamber 106 and the lower pressure chamber 107. The first gas pipe connection 112 may also be formed by a set of pressurized or depressurized pipes. The second air pipe joint 113 may be connected to the air pipe of the air motor 103 for driving the air motor 103 to operate. The second air pipe joint 113 is connected with an external air source. By way of example and not limitation, other air line connectors may be provided on the fixed plate 110 to connect other pneumatic components, such as pressure gauges, pressure regulating valves, safety valves, and the like.

Preferably, a first ring groove 114 is formed on the top surface of the fixing plate 110. A first seal ring 115 is disposed in the first ring groove 114. During assembly of the tire valve compression testing apparatus 100, the first sealing ring 115 is compressed between the cap 102 and the fixing plate 110, resulting in a good sealing effect.

Preferably, a second ring groove 116 is formed on the bottom surface of the fixing plate 110, and a second sealing ring 117 is disposed in the second ring groove 116. During the assembly of the tire valve compression testing apparatus 100, the second sealing ring 117 is compressed between the bottom plate 109 and the bottom surface of the fixing plate 110, resulting in a good sealing effect.

Preferably, referring to fig. 3, the tire valve compression testing apparatus 100 further includes a rotation shaft 118. The valve mounting seat 104 is arranged at the top of the rotating shaft 118 through a screw, the bottom of the rotating shaft 118 is in butt joint with an output shaft of the pneumatic motor 103, and the pneumatic motor 103 can drive the rotating shaft 118 to rotate so as to drive the valve mounting seat 104 to rotate. More preferably, the tire valve compression testing apparatus 100 further includes a bearing housing 119 and a rolling bearing 120. A bearing block 119 is provided on the diaphragm 105 within the upper pressure chamber 106, and the rotary shaft 118 is fixed to the bearing block 119 by a rolling bearing 120. The rotary shaft 118 is rotatable relative to the bearing block 119 by the driving of the air motor 103.

Preferably, referring to FIG. 4, the valve mount 104 extends horizontally around its top periphery with an annular mounting plate 121. The annular mounting plate 121 is provided with a plurality of fixing holes 122. The fixture hole 122 is used to install the tire valve 108 to be tested. More preferably, the fixing holes 122 are uniformly arranged along the outer edge of the ring-shaped mounting plate 121. In this embodiment, four fixing holes 122 are disposed around the outer periphery of the annular mounting plate 121, corresponding to 4 tire valves 108 being tested simultaneously.

Preferably, a plurality of slots 123 and locking screws 124 corresponding to the slots 123 are further disposed on the annular mounting plate 121. The catch 123 and locking screw 124 are used to secure the tire valve 108 to be tested. The end of the tire valve 108 may be snapped into the snap groove 123 and the tire valve 108 may be secured in the snap groove 123 of the annular mounting plate 121 by tightening the locking screw 124. The fixing hole 122 or the locking groove 123 can be selected for different types of tire valves 108.

Preferably, a handle 125 is provided at an outer side of the fixing plate 110 to facilitate the transportation and transfer of the tire valve compression testing apparatus 100.

Fig. 5 is a schematic diagram of the structure of the tire valve 108 of fig. 4. As shown, a tire valve 108 to be tested includes a valve body 126, a washer 127, a nut 128, and a fixed shaft 129. Referring to fig. 4, prior to testing, the tire valve 108 is secured to the annular mounting plate 121 by threading the stationary shaft 129 of the tire valve 108 up into the securing hole 122 of the annular mounting plate 121, then fitting the stationary shaft 129 over the washer 127 and nut 128, and then tightening the nut 128.

The installation process of the tire valve compression testing apparatus 100 will be described in detail below with reference to all the accompanying drawings.

1. The screws are loosened and the end cap 102 is removed.

2. The tire valve 108 is inserted with its own fixed shaft 129 into the fixed hole 122 of the valve mount 104 from the bottom up and the screw is tightened. The remaining 3 tire valves 108 are installed in sequence in this manner.

3. The upper end cap 102 is reattached and screws are tightened to form a sealed chamber within the upper pressure chamber 106 and the lower pressure chamber 107.

4. The lower pressure cavity 107 is pressurized, the pneumatic motor 103 drives the tire valve 108 to rotate, and the internal air pressure and the rotating speed of the tire valve 108 are both adjustable so as to meet different testing requirements.

5. When the tire valve 108 under pressure reaches a certain speed or acceleration, its own sensor is activated to feed back the sensed (measured) air pressure to an external receiver, and the sensor of the tire valve 108 reflects the change of the air pressure immediately during the whole test time.

6. If the feedback air pressure does not correspond to the input air pressure, the tire valve 108 is determined to be disabled. Because the input air pressure is calibrated, the input air pressure is a correct air pressure value.

The utility model provides a tire valve pressurized testing arrangement has following characteristics:

1. the installation is convenient and simple. The whole structure is compact, small and exquisite, and convenient to carry.

2. The moving parts are all positioned in the device, and the problem of considering the service life of the sealing ring is solved.

3. The tire valve testing device can test a plurality of tire valves uniformly distributed on the circumference at one time, and is stable and improves the benefit.

4. The application range is wide, and the device can be applied to testing tire valves of all passenger cars.

5. The device can bear 0.6Mpa pressure which is far greater than the pressure required by test work, and is safe.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (10)

1. A tire valve compression testing device is characterized by comprising,

the base is of a hollow structure, and a transverse partition plate is arranged in the base;

the end cover is detachably arranged on the base, and an upper pressure cavity positioned above the diaphragm and a lower pressure cavity positioned below the diaphragm are formed between the base and the end cover;

the pneumatic motor is arranged in the lower pressure cavity;

the air valve mounting seat is used for mounting a tire air valve to be tested, the air valve mounting seat is arranged in the upper pressure cavity, and the pneumatic motor is used for driving the air valve mounting seat to rotate.

2. The tire valve compression testing apparatus of claim 1, wherein the base includes a bottom plate and a fixing plate disposed around the bottom plate, a diaphragm plate is disposed on the fixing plate, the diaphragm plate and the bottom plate form the lower pressure chamber, and the air motor is fixed to a bottom surface of the diaphragm plate.

3. The tire valve compression testing apparatus of claim 2, wherein the diaphragm plate is provided with a through hole, the upper pressure chamber and the lower pressure chamber are communicated with each other through the through hole, the fixing plate is provided with at least a first air pipe joint and a second air pipe joint, the first air pipe joint is used for pressurizing or depressurizing the upper pressure chamber and the lower pressure chamber, and the second air pipe joint is used for driving the air motor to act.

4. The tire valve compression testing apparatus of claim 2, wherein a first groove is provided in the top surface of the fixing plate, and a first seal ring is provided in the first groove, the first seal ring being compressed between the end cap and the fixing plate.

5. The tire valve compression testing apparatus of claim 2, wherein a second annular groove is provided in the bottom surface of the fixing plate, and a second seal ring is provided in the second annular groove and compressed between the bottom plate and the bottom surface of the fixing plate.

6. The tire valve compression testing apparatus of claim 1, further comprising a rotating shaft, wherein the valve mounting seat is disposed on a top portion of the rotating shaft, a bottom portion of the rotating shaft is in abutment with an output shaft of the pneumatic motor, and the pneumatic motor is capable of driving the rotating shaft to rotate.

7. The tire valve compression testing apparatus of claim 6, further comprising a bearing seat and a rolling bearing, the bearing seat being disposed on the diaphragm, the rotating shaft being fixed to the bearing seat by the rolling bearing.

8. The tire valve compression testing apparatus of claim 1, wherein the valve mounting seat extends horizontally at a top periphery thereof with an annular mounting plate, and the annular mounting plate is provided with a plurality of fixing holes for mounting the tire valve to be tested.

9. The tire valve compression testing apparatus of claim 8, wherein the annular mounting plate is further provided with a plurality of slots and locking screws corresponding to the slots, and the slots and the locking screws are used for fixing the tire valve to be tested.

10. The tire valve compression testing apparatus of claim 2, wherein a handle is provided on an outer side of the fixing plate.

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