CN109050177B - External tire pressure gauge - Google Patents
External tire pressure gauge Download PDFInfo
- Publication number
- CN109050177B CN109050177B CN201811090079.6A CN201811090079A CN109050177B CN 109050177 B CN109050177 B CN 109050177B CN 201811090079 A CN201811090079 A CN 201811090079A CN 109050177 B CN109050177 B CN 109050177B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- plate
- negative plate
- negative
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000003825 pressing Methods 0.000 abstract description 4
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 238000007789 sealing Methods 0.000 description 10
- 239000012634 fragment Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0452—Antenna structure, control or arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0491—Constructional details of means for attaching the control device
- B60C23/0496—Valve stem attachments positioned outside of the tyre chamber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides an external tire pressure gauge which solves the problem of high connection difficulty between a negative plate and a circuit board. When connecting negative pole piece and circuit board, the operator only need insert the fixed pin on the negative pole piece in the fixed orifices, and elastic deformation takes place when the fixed orifices is passed through to bullet card on the fixed pin, and after the bullet card passed through the fixed orifices completely, bullet card was replied to initial shape to with circuit board joint, at the in-process of installation, the operator only need be fixed negative pole piece and circuit board through pressing down, has reduced the degree of difficulty of operation, has improved production efficiency, has also reduced the cost of labor.
Description
Technical Field
The invention relates to the field of tire pressure meters, in particular to an external tire pressure meter.
Background
The external tire pressure gauge is a device for monitoring the air pressure of a vehicle tire. The common external tire pressure gauge is smaller in size, is directly arranged on the inflating valve of an automobile tire, and can monitor the tire pressure of the automobile in real time in the running process of the automobile. Be provided with positive negative pole and button cell connection in the tire pressure gauge, current negative pole piece adopts welded mode to connect to be fixed in on the circuit board in production technology, but because the tire pressure gauge size is less, the operation degree of difficulty is great when welding, easily leads to solder joint quality relatively poor, has reduced production efficiency, has improved the cost of labor.
Disclosure of Invention
The invention aims to provide an external tire pressure gauge which has the effect of enabling a negative plate to be easily connected and fixed with a circuit board.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an external tire pressure gauge, includes circuit module, circuit module includes circuit board and negative pole piece, the negative pole piece with button cell with the circuit board electricity is connected, be equipped with fixed foot on the negative pole piece, be equipped with the fixed orifices that supplies fixed foot to pass on the circuit board, be equipped with the bullet card on the fixed foot, the bullet card can be in the fixed foot pass behind the fixed orifices of circuit board the circuit board butt in one side of circuit board back to the negative pole piece.
Through the scheme, when connecting negative plate and circuit board, the operator only needs to insert the fixed foot on the negative plate into the fixed orifices, and elastic deformation takes place when the fixed orifices is passed through to the bullet card on the fixed foot, and after the bullet card passes through the fixed orifices completely, the bullet card returns to initial shape to with circuit board joint, at the in-process of installation, the operator only need through pressing can fix negative plate and circuit board, has reduced the degree of difficulty of operation, has improved production efficiency, has also reduced the cost of labor.
Further set up: the fixed leg is provided with a storage hole for receiving the bullet card.
Through the scheme, when the bullet card passes through the fixed hole, the bullet card can be completely retracted into the storage hole, so that the resistance born by the fixed foot when being inserted into the fixed hole is reduced, the labor burden of an operator during installation can be reduced, meanwhile, the bullet card can be retracted into the storage hole, the size of the fixed hole can be reduced, the movable space of the fixed foot in the fixed hole is reduced, and the connection stability of the negative plate and the circuit board is improved.
Further set up: when the negative plate is fixed with the circuit board, the spring clip ejects towards the direction far away from the center of the circuit board.
Through above-mentioned scheme, after the bullet card passes through the fixed orifices, the bullet card takes place to warp under the elastic action and resets, and the bullet card is turned over towards keeping away from circuit board central direction, can be convenient for the operator press the bullet card in the outside of circuit board, makes it draw in with the fixed foot and deviate from in the fixed orifices, and the dismantlement of negative pole piece and circuit board is convenient and fast more.
Further set up: the negative plate comprises a flat plate, a first elastic sheet is arranged on the flat plate, and the first elastic sheet is obliquely bent towards one side of the flat plate, close to the circuit board, and can be abutted to the circuit board and elastically deformed when the negative plate is fixed with the circuit board.
Through the scheme, when the negative plate is fixed with the circuit board, the first elastic piece is abutted with the circuit board and is elastically deformed, and the first elastic piece is always kept in a tight abutting state with the circuit board, so that the negative plate is not easy to separate from the circuit board, and the negative plate and the circuit board cannot be electrically connected.
Further set up: the negative plate is provided with a second elastic piece, the negative plate is provided with a containing hole for the second elastic piece to pass through, the first elastic piece is arranged in the containing hole and is staggered with the second elastic piece, and when the negative plate is connected with the button cell, the second elastic piece is elastically deformed and is flush with the flat plate when the second elastic piece is obliquely bent towards one side of the negative plate away from the circuit board.
Through above-mentioned scheme, when negative pole piece and button cell are connected, button cell places between positive plate and negative pole piece, and the second shell fragment receives button cell pressure to produce elastic deformation and flushes with the negative pole piece, and the second shell fragment can make the negative pole piece remain electric connection state with button cell all the time, also can prevent that button cell from deviating from between negative pole piece and the positive pole piece.
Further set up: a gasket is arranged between the negative plate and the circuit board, and an avoidance hole for the first elastic sheet and the second elastic sheet to be placed in and to be deformed actively is formed in the gasket corresponding to the accommodating hole.
Through above-mentioned scheme, the gasket can keep apart circuit board and negative pole piece, prevents that other electric shocks on negative pole piece and the circuit board from switching on, and the gasket provides the supporting role for the negative pole piece simultaneously, makes dull and stereotyped difficult emergence warp, and is connected more stable with the circuit board, and the gasket has increased the interval between circuit board and the negative pole piece, has increased the deflection of first shell fragment, makes the connection of first shell fragment and circuit board more firm, difficult emergence separation.
Further set up: the gasket is equipped with the location foot on the one side towards the circuit board, be equipped with the locating hole that supplies the location foot to insert fixedly on the circuit board.
Through above-mentioned scheme, the locating hole provides the fixed effect of location for the gasket, prevents that the gasket from sliding along the circuit board surface when the installation from leading to the fixed foot to be difficult to aim at the fixed hole to the installation degree of difficulty has been increased.
Further set up: the gasket is provided with a storage groove for embedding the negative electrode plate.
Through above-mentioned scheme, accomodate the groove and provide the locate function for the equipment of gasket and negative pole piece, can imbed the negative pole piece in accomodating the inslot when the installation, make both difficult emergence separation, increased the area of contact of negative pole piece and gasket simultaneously, the negative pole piece is connected with the gasket more stably.
Further set up: the peripheral wall of the gasket is provided with a guide groove for the fixed foot to pass through.
Through above-mentioned scheme, fixed foot imbeds in the guide way, has increased the area of contact of fixed foot and gasket, and can prevent that fixed foot from taking place to slide along the perisporium of gasket, has improved the stability that negative pole piece and gasket are connected.
Further set up: still include the casing, circuit module still includes pressure sensor, the circuit board is fixed with the casing, pressure sensor and circuit board are fixed and the electricity is connected, the casing includes base and kicking block, and it is through injection molding technology integrated into one piece, wholly is the plastics material, be equipped with the mounting groove that supplies tire inflating valve to stretch into in the casing base, the mounting groove inner wall is equipped with the internal thread, the base is including the bottom plate that is located the mounting groove bottom, pressure sensor sets up in the casing base and keeps away from the opening of mounting groove and face away from one side of mounting groove, the bottom kicking block of mounting groove is located bottom plate central point and is extended towards mounting groove opening direction has the kicking block, be equipped with the air duct that switches on with pressure sensor and mounting groove in the kicking block.
Through the scheme, the ejector block and the shell are integrally formed, the ejector block and the shell are not required to be assembled, the processing cost is reduced, the ejector block and the shell are made of plastic materials, and the material cost is saved; meanwhile, the ejector block made of plastic is harder than silica gel, so that abrasion is not easy to occur after the valve rod on the air valve nozzle is repeatedly ejected, and the service life is prolonged. After the valve rod is jacked by the jacking block, gas in the tire is conducted to the pressure sensor through the gas guide channel for detection.
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the external tire pressure gauge, when the negative plate and the circuit board are assembled, the fixing pins are inserted into the fixing holes only by pressing the negative plate, and the negative plate and the circuit board are fixed by using the elastic clamp through the fixing holes and clamped with the circuit board, so that the negative plate and the circuit board are not required to be fixed by welding, the installation difficulty is reduced, and the production efficiency is improved.
2. In external tire pressure meter, base and kicking block integrated into one piece, set up the internal thread in the mounting groove in the base, reduced the process of base and kicking block equipment, saved processing cost, and the casing adopts plastic material, saved material cost, plastic material's kicking block compares the kicking block hardness of silica gel material higher simultaneously, is difficult for taking place wearing and tearing after long-term use roof pressure valve rod, has improved life.
Additional aspects and advantages of the 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.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is an exploded view of a circuit module according to the present embodiment;
fig. 2 is a cross-sectional view of the housing in this embodiment.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The invention relates to an external tire pressure gauge, as shown in fig. 1 and 2, which comprises a shell 1, wherein a circuit module 2 is arranged in the shell 1, the circuit module 2 comprises a circuit board 21, a positive plate 22, a negative plate 23 and a button cell 24, the positive plate 22 and the negative plate 23 are respectively fixed on the circuit board 21, and the button cell 24 is clamped between the positive plate 22 and the negative plate 23.
The positive plate 22 is provided with a pin 221, and the circuit board 21 is provided with an insertion hole 211 for inserting and fixing the pin 221. The negative electrode tab 23 is electrically connected to the button cell 24 and the circuit board 21. The negative plate 23 comprises a flat plate 232 and a fixing pin 231, a fixing hole 212 for the fixing pin 231 to pass through is formed in the circuit board 21, a spring card 2311 is arranged on the fixing pin 231, and when the negative plate 23 is fixed with the circuit board 21, the spring card 2311 abuts against one side of the circuit board 21, which is opposite to the negative plate 23, after passing through the fixing hole 212 of the circuit board 21.
When the negative plate 23 and the circuit board 21 are assembled, an operator only needs to insert the fixing pin 231 on the negative plate 23 into the fixing hole 212, the elastic clamp 2311 on the fixing pin 231 elastically deforms when passing through the fixing hole 212, after the elastic clamp 2311 completely passes through the fixing hole 212, the elastic clamp 2311 returns to the original shape and is abutted with the circuit board 21, so that the negative plate 23 and the circuit board 21 are clamped, and in the installation process, the operator can fix the negative plate 23 and the circuit board 21 only by pressing the flat plate 232 and penetrating the fixing pin 231 through the fixing hole 212, so that the operation difficulty is reduced, the production efficiency is improved, and the labor cost is also reduced.
The positive plate 22 and the circuit board 21 are connected with fool-proof devices, two clamping pins 221 and two insertion holes 211 are respectively arranged, the two insertion holes 211 are different in size, and the positive plate 22 cannot be inserted into the two insertion holes 211 after rotating 180 degrees, so that fool-proof effects are achieved. The connection part of the negative plate 23 and the gasket 25 is also provided with a foolproof device, the shapes of the two sides of the flat plate 232 and the containing groove 252 are different, when the negative plate 23 rotates 180 degrees, the flat plate 232 cannot be placed in the containing groove 252, so that foolproof effect is achieved, and safety is improved.
The fixing leg 231 is provided with a receiving hole 2312 for receiving the spring card 2311; when the spring card 2311 passes through the fixing hole 212, the spring card 2311 can be completely received in the receiving hole 2312, so that the resistance of the fixing leg 231 when inserted into the fixing hole 212 is reduced, the labor burden of an operator during installation can be reduced, meanwhile, the spring card 2311 can be received in the receiving hole 2312, the size of the fixing hole 212 can be reduced, the movable space of the fixing leg 231 in the fixing hole 212 is reduced, and the connection stability of the negative electrode plate 23 and the circuit board 21 is improved.
When the negative plate 23 is fixedly connected with the circuit board 21, the spring card 2311 is turned out in a direction away from the center of the circuit board 21. After the spring card 2311 passes through the fixing hole 212, the spring card 2311 deforms and resets under the elastic action, the spring card 2311 is turned out towards the center direction far away from the circuit board 21, an operator can conveniently press the spring card 2311 at the outer side of the circuit board 21, the spring card 2311 is folded in the fixing pin 231 and can be separated from the fixing hole 212, and the negative electrode plate 23 and the circuit board 21 are detached more conveniently and rapidly.
The center of the flat plate 232 is provided with a receiving hole 2321, the inner wall of the receiving hole 2321 opposite to the receiving hole 2321 is provided with a first elastic piece 233 and a second elastic piece 234, and the first elastic piece 233 and the second elastic piece 234 are staggered. The number of the first elastic pieces 233 is two, and the first elastic pieces 233 are obliquely folded towards the direction of the negative electrode piece 23 facing the circuit board 21, and the number of the second elastic pieces 234 are two, and the second elastic pieces 234 are obliquely folded towards the direction of the negative electrode piece 23 facing away from the circuit board 21. When the negative plate 23 is fixed to the circuit board 21, the first elastic piece 233 abuts against the circuit board 21 and is elastically deformed. When the negative electrode tab 23 is connected to the button cell 24, the second elastic piece 234 is received in the receiving hole 2321 and is flush with the flat plate 232.
When the negative plate 23 is fixed to the circuit board 21, the first elastic piece 233 is abutted against the circuit board 21, and the first elastic piece 233 generates deformation elastic force, so that the first elastic piece 233 is not easy to separate from the circuit board 21, and a good electrical connection effect between the circuit board 21 and the negative plate 23 is ensured. When the negative electrode plate 23 is connected with the button cell 24, the second elastic piece 234 is elastically deformed, and the second elastic piece 234 is always kept in an abutting state with the button cell 24 under the action of elastic force, so that the button cell 24 and the negative electrode plate 23 have a good electrical contact effect, and the button cell 24 can be prevented from falling out from between the positive electrode plate 22 and the negative electrode plate 23.
A spacer 25 is disposed between the negative electrode plate 23 and the circuit board 21, and an avoiding hole 251 consistent with the accommodating hole 2321 is disposed on the spacer 25. The gasket 25 can keep apart circuit board 21 and negative pole piece 23, prevents other components and parts electric contact on negative pole piece 23 and the circuit board 21, and gasket 25 provides the supporting role for negative pole piece 23 simultaneously, makes dull and stereotyped 232 be difficult for taking place to warp, is connected more stably with circuit board 21, and gasket 25 has increased the interval between circuit board 21 and the negative pole piece 23, has increased the deflection of first shell fragment 233, makes the connection of first shell fragment 233 and circuit board 21 more firm, is difficult for taking place the separation.
The gasket 25 is provided with a storage groove 252 in which the negative electrode plate 23 is embedded, and the peripheral wall of the gasket 25 is also provided with a guide groove 253 through which the fixing leg 231 can pass; the receiving groove 252 provides a positioning function for assembling the gasket 25 and the negative electrode sheet 23, and the negative electrode sheet 23 can be embedded into the receiving groove 252 during installation, so that the gasket 25 and the negative electrode sheet 23 are not easy to separate. The spacer 25 is provided with a positioning pin 254, and the circuit board 21 is provided with a positioning hole 213 into which the positioning pin 254 is inserted. The positioning holes 213 provide positioning and fixing effects for the pads 25, prevent the pads 25 from sliding along the surface of the circuit board 21 during mounting, and prevent the fixing legs 231 from being difficult to align with the fixing holes 212, thereby reducing the mounting difficulty.
The connection part between the gasket 25 and the circuit board 21 is provided with fool-proof devices, the two positioning pins 254 and the two positioning holes 213 are respectively provided with two positioning pins 254, the two positioning pins 254 are diagonally arranged along the gasket 25, the two positioning holes 213 are different in size, and the two positioning pins 254 can only be inserted into the corresponding positioning holes 213, so that fool-proof effects are achieved.
The casing 1 is plastic material, the casing 1 includes base 11 and kicking block 12, be equipped with the mounting groove 111 that supplies the tire inflating valve to stretch into on the base 11, the mounting groove 111 inner wall is equipped with the internal thread 1111, the base 11 includes bottom plate 13, the mounting groove 111 is located one side of bottom plate 13, kicking block 12 set up in bottom plate 13 central point puts and extends towards mounting groove 111 opening direction, kicking block 12 is used for pushing up the inflating valve stem. The circuit module 2 further comprises a pressure sensor 27, the pressure sensor 27 is fixed to the circuit board 21 and electrically connected with the circuit board 21, an air guide channel 121 is arranged in the top block 12, and the air guide channel 121 is respectively communicated with the pressure sensor 27 and the mounting groove 111. An air guide gap 122 extending along the radial direction of the top block 12 is arranged at one end of the top block 12 near the opening of the mounting groove 111, and the air guide gap 122 is communicated with the air guide channel 121.
The base 11 and the top block 12 are integrally formed, the inner threads 1111 are arranged in the mounting groove 111, the process of assembling the base 11 and the top block 12 is reduced in the production process, the processing cost is reduced, the shell 1 and the top block 12 are made of plastic materials, and the material cost is reduced. Meanwhile, compared with the existing ejector block 12 made of silica gel, the ejector block 12 made of plastic is higher in hardness, abrasion of the ejector block 12 after a valve rod on a top pressure air valve is used for a long time is not easy to occur, and the service life of the ejector block 12 is prolonged.
The two sides of the bottom plate 13 are respectively provided with a sealing pad 14, and the sealing pads 14 are made of silica gel and are formed in an injection molding mode. The bottom plate 13 is provided with a communication hole 131, and the sealing gaskets 14 on two sides of the bottom plate 13 are connected into a whole through the communication hole 131. The pressure sensor 27 is abutted against the sealing gasket 14, and the thickness of the sealing gasket 14 in the mounting groove 111 is smaller than the height of the top block 12.
When being connected with the inflating valve, the sealing gasket 14 plays a sealing effect on two ends of the air guide channel 121, prevents gas leakage from occurring during testing of tire pressure, influences testing effect and further causes potential safety hazards. The sealing gaskets 14 on the two sides of the bottom plate 13 are integrally formed by the communication holes 131, so that the production efficiency can be improved, meanwhile, the connection between the sealing gaskets 14 on the two sides of the bottom plate 13 and the base 11 is more stable, and the sealing performance of the base 11 is improved.
An antenna 26 is further arranged in the shell 1, one end of the antenna 26 is electrically connected with the circuit board 21, the other end of the antenna 26 is bent downwards and then curled into a ring shape, and the two ends of the antenna 26 are not connected end to end. A receiving cavity is formed in the side, facing away from the mounting groove 111, of the housing 1, and the pressure sensor 27 and the antenna 26 are arranged in the receiving cavity.
After the pressure sensor 27 detects the air pressure of the automobile tire, an electromagnetic wave signal carrying the tire pressure information is transmitted outwards through the antenna 26, so that a display mounted on the automobile can receive and display the electromagnetic wave signal, and a driver can read the tire pressure information in real time. The antenna 26 curled into a ring shape can convert the space utilization of the antenna 26 in the height direction in the shell 1 into the utilization of radial space, so that the length of the antenna 26 is prolonged to the same extent, the strength of signal emission is enhanced, and the propagation effect is better.
The specific installation and use process of the tire pressure gauge comprises the following steps:
when the negative plate 23 is mounted, the positioning pins 254 on the spacer 25 are inserted into the positioning holes 213 on the circuit board 21 to fix the negative plate, then the fixing pins 231 on the negative plate 23 are inserted into the fixing holes 212 on the circuit board 21, the spring card 2311 on the fixing pins 231 is elastically deformed in the process of passing through the fixing holes 212, after the spring card 2311 completely passes through the fixing holes 212, the spring card 2311 is reset under the action of elastic restoring force, the spring card 2311 is clamped and fixed with the circuit board 21, and the first spring sheet 233 is abutted with the contact of the circuit board 21 to elastically deform. When the button cell 24 is mounted, the button cell is inserted between the positive electrode sheet 22 and the negative electrode sheet 23, and the second elastic sheet 234 is flattened to complete the mounting.
In the use process, the mounting groove 111 on the shell 1 is aligned with the inflating valve on the tire, the shell 1 is rotated to be in threaded connection with the inflating valve, the ejector block 12 pushes against the valve rod on the inflating valve along with the inflating valve entering the mounting groove 111, so that gas in the tire is conducted to the position of the pressure sensor 27 through the gas conducting channel 121, and the information obtained by monitoring of the pressure sensor 27 is transmitted to the outside through the antenna 26, so that a driver can observe the air pressure of the tire at any time.
The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (6)
1. The utility model provides an external tire pressure gauge, includes circuit module, circuit module includes circuit board and negative pole piece, the negative pole piece with button cell with the circuit board electricity is connected, characterized by: the negative plate is provided with a fixing pin, the circuit board is provided with a fixing hole for the fixing pin to pass through, the fixing pin is provided with a spring clip, and the spring clip can be abutted to one side of the circuit board, which is opposite to the negative plate, after the fixing pin passes through the fixing hole of the circuit board;
the negative plate comprises a flat plate, a first elastic piece is arranged on the flat plate, a second elastic piece is arranged on the negative plate, a containing hole for the second elastic piece to pass through is formed in the center of the flat plate, and the first elastic piece is arranged in the containing hole and is staggered with the second elastic piece;
the first elastic sheet is obliquely bent towards one side of the flat plate, which is close to the circuit board, and can be abutted against the circuit board and elastically deformed when the negative plate is fixed with the circuit board;
the second elastic sheet is bent obliquely towards one side, far away from the circuit board, of the negative plate, and when the negative plate is connected with the button cell, the second elastic sheet is elastically deformed and is flush with the flat plate;
a gasket is arranged between the negative plate and the circuit board, and a avoiding hole for the first elastic sheet and the second elastic sheet to be placed in and to be deformed actively is arranged on the gasket corresponding to the accommodating hole;
the gasket is provided with a storage groove for embedding the negative electrode plate; the negative plate and the gasket are in foolproof arrangement at the joint, the shapes of the plate and two sides of the containing groove are different, and when the negative plate rotates 180 degrees, the plate cannot be placed in the containing groove.
2. The external tire gauge of claim 1, wherein: the fixed leg is provided with a storage hole for receiving the bullet card.
3. The external tire gauge of claim 1, wherein: when the negative plate is fixed with the circuit board, the spring clip ejects towards the direction far away from the center of the circuit board.
4. The external tire gauge of claim 1, wherein: the gasket is equipped with the location foot on the one side towards the circuit board, be equipped with the locating hole that supplies the location foot to insert fixedly on the circuit board.
5. The external tire gauge of claim 1, wherein: the peripheral wall of the gasket is provided with a guide groove for the fixed foot to pass through.
6. The external tire gauge of claim 1, wherein: still include the casing, circuit module still includes pressure sensor, the circuit board is fixed with the casing, pressure sensor and circuit board are fixed and the electricity is connected, the casing includes base and kicking block, and it is through injection molding technology integrated into one piece, wholly is the plastics material, be equipped with the mounting groove that supplies tire inflating valve to stretch into in the casing base, the mounting groove inner wall is equipped with the internal thread, the base is including the bottom plate that is located the mounting groove bottom, pressure sensor sets up in the casing base and keeps away from the opening of mounting groove and face away from one side of mounting groove, the bottom kicking block of mounting groove is located bottom plate central point and is extended towards mounting groove opening direction has the kicking block, be equipped with the air duct that switches on with pressure sensor and mounting groove in the kicking block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090079.6A CN109050177B (en) | 2018-09-18 | 2018-09-18 | External tire pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090079.6A CN109050177B (en) | 2018-09-18 | 2018-09-18 | External tire pressure gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109050177A CN109050177A (en) | 2018-12-21 |
| CN109050177B true CN109050177B (en) | 2023-12-29 |
Family
ID=64763037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811090079.6A Active CN109050177B (en) | 2018-09-18 | 2018-09-18 | External tire pressure gauge |
Country Status (1)
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| JP2006051888A (en) * | 2004-08-12 | 2006-02-23 | Daiwa Kasei Ind Co Ltd | Attachment structure for cushion clip |
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