CN210830975U

CN210830975U - T-shaped three-way quick connector with pressure detector

Info

Publication number: CN210830975U
Application number: CN201921814514.5U
Authority: CN
Inventors: 吴学祥; 邱林云; 周从田; 谢招为
Original assignee: Zhejiang Wanquan Machinery Manufacturing Co ltd
Current assignee: Zhejiang Wanquan Machinery Manufacturing Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-23
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a T type tee bend quick connector with pressure detector, belong to the tube coupling technical field, its technical scheme main points are including the right angle joint and detect the joint, detect and connect structure as an organic whole with the right angle, it includes the hollow first joint body to detect the joint, axial direction activity along the first joint body sets up in the internal atmospheric pressure of first joint detection case and sets up on the inner wall of the first joint body and be used for restricting the atmospheric pressure detection case and break away from the bush of the first joint body after removing to first joint body port, the first joint body feeds through in two ports of right angle joint, stretch out the first joint body after the tip of atmospheric pressure detection case passes the bush, press the cavity that stretches out in the end rear right angle joint of atmospheric pressure detection case and the end port that stretches out of atmospheric pressure detection case and be linked together. The utility model discloses set up right angle joint and detection joint into a whole to can improve the gas tightness that detects the joint, still reduce the volume of quick connector simultaneously.

Description

T-shaped three-way quick connector with pressure detector

Technical Field

The utility model belongs to the technical field of the tube coupling, it is specific indicate a T type tee bend quick connector with pressure detector.

Background

The new national standard GB 7258 plus 2017 Motor vehicle operation safety technical Condition requires: in the design and manufacture of automobiles and trailers using pneumatic braking, each air reservoir (except for pressure display devices such as pressure gauges) and brake chamber should have a connector that can be used to test brake line pressure.

The connector that is used for testing brake pipe pressure on the pneumatic brake commercial car adopts the detection joint usually, installs the detection joint additional on the joint of original pneumatic brake pipe way and braking element (gas receiver, brake chamber) junction, however this kind of external detection joint forms through interior external screw thread closure with being installed additional between the joint, leakproofness between the two is less strong, and the part volume is great after assembling moreover, assembly structure is complicated, not only is unfavorable for spatial arrangement, and the cost is still higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists to the aforesaid, provide a T type tee bend quick connector with pressure detector structure as an organic whole, this quick connector is small, and the gas tightness is high moreover.

The purpose of the utility model is realized like this: a T-shaped three-way quick connector with a pressure detector comprises a hollow right-angle connector, wherein, the quick connector also comprises a detection connector arranged at the right angle of the right-angle connector, the detection connector and the right-angle connector are of an integrated structure, the detection joint comprises a hollow first joint body, an air pressure detection valve core movably arranged in the first joint body along the axial direction of the first joint body, and a bushing which is arranged on the inner wall of the first joint body and used for limiting the air pressure detection valve core to be separated from the first joint body after moving to the port of the first joint body, the first connector body is communicated with the two ports of the right-angle connector, the end part of the air pressure detection valve core penetrates through the bushing and then extends out of the first connector body, and a cavity in the right-angle connector is communicated with the extending end port of the air pressure detection valve core after the extending end of the air pressure detection valve core is pressed.

Through adopting above-mentioned technical scheme, two ports that the right angle connects are used for connecting nylon tube and valve port, for making it can detect the internal pressure condition by oneself, to this be provided with the detection at the junction that the right angle connects and connect, connect the right angle and connect with the detection and set up to a whole to can improve the gas tightness that detects the joint, the detection mode that detects the joint is: through pressing the atmospheric pressure detection case for appear the gap between atmospheric pressure detection case and the bush, the port that the gas in the right angle connects from the atmospheric pressure detection case can spill over through this gap, installs a manometer additional on the port of atmospheric pressure detection case and can accurately measure the atmospheric pressure condition in the right angle connects.

The utility model discloses further set up to: the air pressure detection valve core comprises a spring and a core body, one end of the spring is fixed, the other end of the spring is abutted to the core body, the core body is sequentially arranged on a fixed boss in the spring, a limiting boss arranged at the end part of the fixed boss and a rod part arranged at the end part of the limiting boss in an embedded mode, a first O-shaped sealing ring arranged on the limiting boss is sleeved on the outer wall of the rod part and located, the first O-shaped sealing ring passes through the elastic force of the spring and abuts against the bush tightly, the rod part is of a hollow structure, the outer wall of the rod part is further provided with a press, the extending end of the rod part enables the first O-shaped sealing ring to be separated from the back of the bush, and the rod part is communicated with a circulation hole.

By adopting the technical scheme, the rod part on the air pressure detection valve core is sealed through the first O-shaped sealing ring, so that the air tightness between the rod part and the lining can be improved; after the air pressure in the right-angle joint is detected, the rod part is loosened, the rod part can drive the rod part to move under the action of spring elasticity, the first O-shaped sealing ring on the rod part is abutted to the lining tightly, sealing is achieved, the structure not only can facilitate detection of air pressure, but also improves detection efficiency.

The utility model discloses further set up to: the utility model discloses a joint structure of a motor vehicle, including first joint body, bush, first O shape sealing washer, spring, second O shape sealing washer, first O shape sealing washer, bush, second O shape sealing washer, first O shape sealing washer, bush, first O shape sealing washer, second O shape sealing washer, first O shape sealing washer, second O shape sealing washer, first.

By adopting the technical scheme, the limiting ring is arranged in the bushing, and the diameter of the limiting ring is gradually reduced, so that the first O-shaped sealing ring tightly abuts against the inner wall of the limiting ring, and the air tightness between the air pressure detection valve core and the bushing is further improved; set up second O shape sealing washer and first bamboo joint pawl on the outer wall of bush, first bamboo joint pawl prevents that the bush from breaking away from first joint body, and second O shape sealing washer is the gas tightness that improves between bush and the first joint body.

The utility model discloses further set up to: the first connector body is also internally provided with a filter screen, and the end part of the spring is abutted against the filter screen.

Through adopting above-mentioned technical scheme, set up the filter screen in order to filter the impurity in the pipeline, and then prevent that impurity from entering into the air pressure detection case, lead to the air pressure detection case to appear blockking up.

The utility model discloses further set up to: the outer wall of the first joint body is provided with a first limiting flange which is radially outward and is far away from the port of the first joint body, the detection joint further comprises a dustproof cap which is sleeved on the first joint body to seal the port of the first joint body, and the dustproof cap is abutted against the first limiting flange after being closed on the first joint body.

Through adopting above-mentioned technical scheme, set up the dust cap on detecting the joint to prevent that the dust from entering into the atmospheric pressure detection valve core.

The utility model discloses further set up to: the dustproof cap is made of rubber materials, and comprises a cap body, a handle arranged at the side end of the cap body and an anti-falling pull ring capable of being sleeved on the first joint body, wherein the anti-falling pull ring is connected with the cap body through a bendable connecting belt, an external thread is arranged on the outer wall of the first joint body, and the cap body is in interference fit with the external thread.

By adopting the technical scheme, the outer wall of the first joint body is provided with the external thread, and the cap is in interference fit with the external thread on the outer wall of the first joint body, so that the contact area between the first joint body and the cap can be reduced, the friction force between the first joint body and the cap is further reduced, the cap can be conveniently pulled out in a rotating manner, and the external thread also has the function of being externally connected with the air pressure sensor; the cap is provided with the handle to increase the area of holding the cap by hands, so that the cap can be further conveniently pulled out in a rotating manner; the cap is connected with an anti-dropping pull ring to avoid the cap from losing.

The utility model discloses further set up to: the right-angle joint comprises a second joint body and a third joint body, a clamping ring groove which is formed radially inwards is formed in the outer wall of the second joint body, the clamping ring groove is arranged at one end, close to the port of the second joint body, a second limiting flange which is arranged radially outwards is formed in the outer wall of the second joint body, and the second limiting flange is arranged at one end, far away from the port of the second joint body, of the second joint body; the outer wall of the third joint body is provided with a third limiting flange which is arranged outwards in the radial direction, one end, far away from the port of the third joint body, of the third limiting flange is arranged, an inner fillet is arranged at the joint between one end, close to the port of the third joint body, of the third limiting flange and the third joint body, the inner fillet is provided with a plurality of limiting protrusions which are arranged along the circumferential direction of the inner fillet, and the detection joint is perpendicular to the second joint body or the third joint body and is arranged on the same plane.

By adopting the technical scheme, the second joint body on the right-angle joint is used for connecting the valve port, and the third joint body is used for connecting the nylon pipe; the clamping ring groove on the second joint body is used for installing a clamping ring, the second joint body is prevented from loosening by matching with the clamping ring, and the second limiting flange is used for indicating the length of the second joint body pressed into the valve port; the third limiting flange and the limiting protrusion are arranged to indicate the installation length of the nylon pipe, and after the nylon pipe enters the third connector body along the port of the third connector body in a press-fitting mode, the front end of the nylon pipe props the limiting protrusion to enable the nylon pipe to be installed in place.

The utility model discloses further set up to: a third O-shaped sealing ring is sleeved on the outer wall of the second joint body and is positioned between the second limiting flange and the clamping ring groove and close to the second limiting flange; and the outer wall of the third joint body is provided with second bamboo joint inverted teeth which are arranged outwards in the radial direction, and the second bamboo joint inverted teeth are two or more than two and are positioned between the port of the third joint body and the third limiting flange.

By adopting the technical scheme, the third O-shaped sealing ring is arranged on the second joint body so as to improve the air tightness between the second joint body and the valve port; set up the second bamboo joint pawl on the third connects the body to make the third connect the body and manage interference fit through the second bamboo joint pawl, not only make things convenient for the nylon pipe pressure equipment to connect the body to the third, but also can prevent that the nylon pipe from receiving the influence of pressure and coming off.

The utility model discloses further set up to: a port of the second joint body is provided with a chamfer, and the chamfer forms a first guide inclined plane for sleeving the valve port; a chamfer is formed on the port of the third joint body, and the chamfer forms a second guide inclined plane for sleeving the nylon pipe.

Through adopting above-mentioned technical scheme, the chamfer has all been seted up on the port that the second connects the body and the third connects the body to form first direction inclined plane and second direction inclined plane, when the second connects the body to be embedded into the valve port, can make things convenient for the second to connect the body pressure equipment to the valve port in through first direction inclined plane, when the nylon tube is installed on the third connects the body, can make the slow expansion of nylon tube inner bore through the second direction inclined plane, and then impresses on the second bamboo joint pawl along the trend, the nylon tube has been avoided the pressure deviation and has been buckled.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the detection joint of the present invention;

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

FIG. 4 is a schematic structural view of the dust cap of the present invention;

the reference numbers in the figures are: 1. a right angle joint; 11. a second joint body; 111. a snap ring groove; 112. a second limiting flange; 113. a third O-ring seal; 114. a first guide slope; 12. a third joint body; 121. A third limiting flange; 122. a limiting bulge; 123. a second bamboo joint pawl; 124. a second guide slope; 2. detecting the joint; 21. a first joint body; 211. a first limiting flange; 212. an external thread; 22. an air pressure detection valve core; 221. a spring; 222. a core body; 2221. fixing the boss; 2222. a limiting boss; 2223. a rod portion; 2224. a first O-ring seal; 2225. a flow-through hole; 23. a bushing; 231. a limiting ring; 232. A second O-ring seal; 233. a first bamboo joint pawl; 24. a filter screen; 25. a dust cap; 251. a cap; 252. a handle; 253. an anti-drop pull ring; 254. and a connecting belt.

Detailed Description

In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:

a T-shaped three-way quick connector with a pressure detector is disclosed, as shown in figure 1, and comprises a hollow right-angle connector 1 and a detection connector 2 arranged at the right angle of the right-angle connector 1, wherein the detection connector 2 and the right-angle connector 1 are of an integrated structure and are made of PA11-GF30 materials, so that the whole quick connector has the characteristics of light weight, corrosion resistance, fatigue cracking resistance, good sealing property, small resistance and the like;

the right-angle connector 1 comprises a second connector body 11 and a third connector body 12, a clamping ring groove 111 formed radially inwards is formed in the outer wall of the second connector body 11, the clamping ring groove 111 is arranged close to one end of a port of the second connector body 11, a second limiting flange 112 arranged radially outwards is formed in the outer wall of the second connector body 11, and one end, far away from the port of the second connector body 11, of the second limiting flange 112 is arranged; the outer wall of the third joint body 12 is provided with a third limiting flange 121 which is arranged radially outwards, the third limiting flange 121 is arranged at one end far away from the port of the third joint body 12, an inner fillet is arranged at the joint between one end of the third limiting flange 121 close to the port of the third joint body 12 and the third joint body 12, the inner fillet is provided with a plurality of limiting bulges 122 arranged along the circumferential direction, and the detection joint 2 is perpendicular to the second joint body 11 or the third joint body 12 and the three parts are on the same plane.

A second joint body 11 on the right-angle joint 1 is used for connecting a valve port, and a third joint body 12 is used for connecting a nylon pipe; the clamping ring groove 111 on the second joint body 11 is used for installing a clamping ring, the second joint body 11 is prevented from loosening by matching with the clamping ring, and the second limiting flange 112 is arranged to indicate the length of the second joint body 11 pressed into the valve port; the third limiting flange 121 and the limiting protrusion 122 are arranged to indicate the installation length of the nylon tube, and when the nylon tube enters along the port of the third joint body 12 in a press-fitting manner, the front end of the nylon tube abuts against the limiting protrusion 122 to ensure that the nylon tube is installed in place.

A third O-shaped sealing ring 113 is sleeved on the outer wall of the second joint body 11, the third O-shaped sealing ring 113 is positioned between the second limiting flange 112 and the clamping ring groove 111 and is close to the second limiting flange 112, and the air tightness between the second joint body 11 and the valve port is improved by arranging the third O-shaped sealing ring 113; there is the second bamboo joint pawl 123 of radial outside setting on the outer wall of the third joint body 12, the second bamboo joint pawl 123 has two or more and is located the third and connects between body 12 ports and the third flange 121, set up the second bamboo joint pawl 123 on the third joint body 12, and make the third joint body 12 and nylon tube interference fit through second bamboo joint pawl 123, not only make things convenient for the nylon tube pressure equipment to the third joint body 12 on, but also can prevent that the nylon tube from receiving the influence of pressure and coming off. After the nylon tube is pressed into the third joint body 12, the second bamboo joint inverted teeth 123 are in interference fit with the nylon tube, and the interference fit structure can ensure that the product is sealed under the working pressure, so that the nylon tube is prevented from falling off due to the influence of pressure.

A port of the second joint body 11 is provided with a chamfer, the chamfer forms a first guide inclined surface 114 for sleeving the valve port, and when the second joint body 11 is embedded into the valve port, the second joint body 11 can be conveniently pressed into the valve port through the first guide inclined surface 114; the port of the third joint body 12 is provided with a chamfer, the chamfer forms a second guide inclined plane 124 for sleeving the nylon pipe, when the nylon pipe is installed on the third joint body 12, the inner hole of the nylon pipe can be slowly expanded through the second guide inclined plane 124, and then the nylon pipe is pressed into the second bamboo joint inverted tooth 123, so that the nylon pipe is prevented from being deflected and bent.

As shown in fig. 1 and 2, the detection joint 2 includes a hollow first joint body 21, an air pressure detection valve core 22 movably disposed in the first joint body 21 along an axial direction of the first joint body 21, and a bushing 23 disposed on an inner wall of the first joint body 21 and used for limiting the air pressure detection valve core 22 to be separated from the first joint body 21 after moving to a port of the first joint body 21, the first joint body 21 is communicated with two ports of the right angle joint 1, an end portion of the air pressure detection valve core 22 extends out of the first joint body 21 after passing through the bushing 23, and a cavity in the right angle joint 1 is communicated with an extending end port of the air pressure detection valve core 22 after pressing an extending end of the air pressure detection valve core 22.

Because the second joint body 11 and the third joint body 12 on the right angle connects 1 are used for connecting valve port and nylon tube, for making it can detect the internal pressure condition by oneself, to this be provided with at the junction of right angle joint 1 and detect and connect 2, connect 1 and detect to connect 2 with the right angle and set up to a whole to can improve the gas tightness that detects and connect 2, the detection mode that detects and connect 2 is: by pressing the air pressure detection valve core 22, a gap is formed between the air pressure detection valve core 22 and the lining 23, air in the right-angle joint 1 can overflow from a port of the air pressure detection valve core 22 through the gap, and the air pressure condition in the right-angle joint 1 can be accurately measured by additionally arranging a pressure gauge on the port of the air pressure detection valve core 22.

The air pressure detecting valve core 22 includes a spring 221 and a core body 222, one end of the spring 221 is fixed, and the other end of the spring 221 abuts against the core body 222, the core body 222 is sequentially provided with a fixing boss 2221 embedded in the spring 221, a limiting boss 2222 arranged at the end of the fixing boss 2221 and having an outer diameter larger than that of the fixing boss 2221, and a rod portion 2223 arranged at the end of the limiting boss 2222 from inside to outside, the outer wall of the rod portion 2223 is sleeved with a first O-shaped sealing ring 2224 positioned on the limiting boss 2222, the first O-shaped sealing ring 2224 abuts against the bushing 23 through the elastic force of the spring 221, the rod portion 2223 is of a hollow structure, and the outer wall of the rod portion 2223 is further provided with a protruding end for pressing the rod portion 2223 so that the rod portion 2223 is communicated with a flow.

The stem portion 2223 of the air pressure detecting spool 22 is sealed by the first O-ring 2224, so that the air tightness between the stem portion 2223 and the bush 23 can be improved; after the air pressure in the right-angle joint 1 is detected, the rod part 2223 is loosened, the rod part 2223 can drive the rod part 2223 to move under the action of the elastic force of the spring 221, the first O-shaped sealing ring 2224 on the rod part 2223 is abutted against the lining 23, and then sealing is achieved.

As shown in fig. 2 and 3, the bushing 23 is disposed on the inner wall of the port of the first joint body 21, the inner wall of one end of the bushing 23 close to the first O-ring 2224 is provided with a radially inward-disposed limiting ring 231, the inner diameter of the limiting ring 231 is gradually reduced along the direction close to the outer port of the bushing 23, the first O-ring 2224 is tightly pressed against the inner wall of the limiting ring 231 by the elastic force of the spring 221, the outer wall of the bushing 23 is sleeved with a second O-ring 232, the second O-ring 2224 is tightly pressed against the inner wall of the first joint body 21, the outer wall of the bushing 23 is further provided with a radially outward-disposed first inverted bamboo joint tooth 233, the first inverted bamboo joint tooth 233 has two or more than two and is disposed between the outer port of the bushing 23 and the second O-ring 232, and the first inverted bamboo joint tooth 233 is in interference fit with the inner wall of the first joint body 21.

The limiting ring 231 is arranged in the bushing 23, and the diameter of the limiting ring 231 is gradually reduced, so that the first O-ring 2224 tightly abuts against the inner wall of the limiting ring 231, and the air tightness between the air pressure detection valve core 22 and the bushing 23 is further improved; the second O-ring 232 and the first reverse tooth 233 are disposed on the outer wall of the bushing 23, the first reverse tooth 233 prevents the bushing 23 from separating from the first joint body 21, and the second O-ring 232 improves the air tightness between the bushing 23 and the first joint body 21.

The utility model discloses further set up to, in the impurity that for preventing in the pipeline enters into atmospheric pressure detection case 22, lead to atmospheric pressure detection case 22 to appear blockking up, still be provided with filter screen 24 in first joint body 21 to this, spring 221's tip is contradicted in filter screen 24.

The utility model discloses further set up to, as shown in fig. 1, fig. 2 and fig. 4, for preventing that outside dust from entering into atmospheric pressure detection case 22, to this have radially outwards and keep away from the first flange 211 that its port set up on the outer wall of first joint body 21, detection joint 2 still locates first joint body 21 including the cover and carries out the dust cap 25 sealed with its port, and the dust cap 25 lid is fitted and is contradicted in first flange 211 after on the first joint body 21.

The dust cap 25 is made of rubber material, the dust cap 25 includes a cap 251, a handle 252 disposed at the side end of the cap 251, and an anti-releasing pull ring 253 capable of being sleeved on the first connector body 21, the anti-releasing pull ring 253 is connected with the cap 251 through a bendable connecting band 254, an external thread 212 is disposed on the outer wall of the first connector body 21, and the cap 251 and the external thread 212 are in interference fit.

The outer wall of the first joint body 21 is provided with the outer thread 212, and the cap 251 is in interference fit with the outer thread 212 on the outer wall of the first joint body 21, so that the contact area between the first joint body 21 and the cap 251 can be reduced, the friction force between the first joint body 21 and the cap 251 is further reduced, the cap 251 can be conveniently pulled out in a rotating manner, and the outer thread 212 also has the function of being externally connected with an air pressure sensor; a handle 252 is arranged on the cap 251 to increase the area of the cap 251 held by hands, so that the cap 251 can be further conveniently pulled out in a rotating manner; a slip-off preventing tab 253 is connected to the cap 251 to prevent the cap 251 from being lost.

The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a T type tee bend quick connector with pressure detector, includes hollow right angle joint (1), its characterized in that: the quick connector is characterized by further comprising a detection joint (2) arranged at a right angle of the right-angle joint (1), the detection joint (2) and the right-angle joint (1) are of an integral structure, the detection joint (2) comprises a hollow first joint body (21), an air pressure detection valve core (22) movably arranged in the first joint body (21) along the axial direction of the first joint body (21) and a bushing (23) arranged on the inner wall of the first joint body (21) and used for limiting the air pressure detection valve core (22) to be separated from the first joint body (21) after moving towards a port of the first joint body (21), the first joint body (21) is communicated with two ports of the right-angle joint (1), the end of the air pressure detection valve core (22) penetrates through the bushing (23) and then extends out of the first joint body (21), and after the extending end of the air pressure detection valve core (22) is pressed, a cavity in the right-angle joint (1) and the air pressure detection valve core The extended end ports of the valve core (22) are communicated.

2. The T-tee quick connector with a pressure detector of claim 1, wherein: the air pressure detection valve core (22) comprises a spring (221) and a core body (222), one end of the spring (221) is fixed, the other end of the spring (221) abuts against the core body (222), the core body (222) sequentially comprises a fixed boss (2221) embedded in the spring (221), a limit boss (2222) arranged at the end of the fixed boss (2221) and having an outer diameter larger than that of the fixed boss (2221), and a rod part (2223) arranged at the end of the limit boss (2222), a first O-shaped sealing ring (2224) located on the limit boss (2222) is sleeved on the outer wall of the rod part (2223), the first O-shaped sealing ring (2224) abuts against the lining (23) through the elastic force of the spring (221), the rod part (2223) is of a hollow structure, and the outer wall of the rod part (2223) is further provided with an extension end pressing the rod part (2223) to enable the first O-shaped sealing ring (2224) to be separated from the lining (23), and then the rod part (2223) is communicated with the lining And the flow hole (2225) of the right-angle joint (1).

3. The T-tee quick connector with a pressure detector as set forth in claim 2, wherein: the bushing (23) is arranged on the inner wall of the port of the first joint body (21), a limiting ring (231) which is arranged inwards in the radial direction is arranged on the inner wall of one end, close to the first O-shaped sealing ring (2224), of the bushing (23), the inner diameter of the limiting ring (231) is gradually reduced along the direction close to the outer port of the bushing (23), the first O-shaped sealing ring (2224) is tightly pressed on the inner wall of the limiting ring (231) through the elastic force of the spring (221), a second O-shaped sealing ring (232) is sleeved on the outer wall of the bushing (23), the second O-shaped sealing ring (232) is tightly pressed on the inner wall of the first joint body (21), a first bamboo joint inverted tooth (233) which is arranged outwards in the radial direction is further arranged on the outer wall of the bushing (23), and the first bamboo joint inverted tooth (233) is provided with two or more than two and is/are arranged between the outer port of the bushing (23) and the second O-shaped sealing ring (, the first bamboo joint inverted tooth (233) is in interference fit with the inner wall of the first joint body (21).

4. A T-shaped three-way quick connector with a pressure detector as claimed in claim 2 or 3, wherein: a filter screen (24) is further arranged in the first joint body (21), and the end part of the spring (221) is abutted against the filter screen (24).

5. The T-shaped three-way quick connector with the pressure detector as claimed in claim 4, wherein: there is radial outside and keeps away from first limit flange (211) that its port set up on the outer wall of first joint body (21), detection joint (2) are still located including the cover first joint body (21) are in order to carry out sealed dust cap (25) with its port, dust cap (25) lid fit first joint body (21) go up the back conflict in first limit flange (211).

6. The T-shaped three-way quick connector with the pressure detector as claimed in claim 5, wherein: dustproof cap (25) are made for rubber materials, dustproof cap (25) include cap (251), set up in handle (252) of cap (251) side and can overlap and locate anticreep pull ring (253) on first joint body (21), anticreep pull ring (253) with cap (251) are connected through bendable connecting band (254), there is external screw thread (212) on the outer wall of first joint body (21), cap (251) and this external screw thread (212) interference fit.

7. The T-tee quick connector with a pressure detector of claim 1, wherein: the right-angle connector (1) comprises a second connector body (11) and a third connector body (12), a clamping ring groove (111) which is formed in the radial inward direction is formed in the outer wall of the second connector body (11), the clamping ring groove (111) is arranged at one end, close to the port of the second connector body (11), of the second connector body, a second limiting flange (112) which is formed in the radial outward direction is formed in the outer wall of the second connector body (11), and one end, far away from the port of the second connector body (11), of the second limiting flange (112) is arranged; a third limiting flange (121) which is arranged outwards in the radial direction is arranged on the outer wall of the third joint body (12), one end, far away from the port of the third joint body (12), of the third limiting flange (121), an inner fillet is arranged at the joint between one end, close to the port of the third joint body (12), of the third limiting flange (121) and the third joint body (12), a plurality of limiting protrusions (122) are arranged on the inner fillet along the circumferential direction of the inner fillet, and the detection joint (2) is perpendicular to the second joint body (11) or the third joint body (12) and is arranged on the same plane.

8. The T-tee quick connector with a pressure detector of claim 7, wherein: a third O-shaped sealing ring (113) is sleeved on the outer wall of the second joint body (11), and the third O-shaped sealing ring (113) is positioned between the second limiting flange (112) and the clamping ring groove (111) and is close to the second limiting flange (112); and the outer wall of the third joint body (12) is provided with second bamboo joint inverted teeth (123) which are arranged outwards in the radial direction, and the second bamboo joint inverted teeth (123) are two or more and are positioned between the port of the third joint body (12) and the third limiting flange (121).

9. The T-tee quick connector with a pressure detector of claim 8, wherein: a port of the second joint body (11) is provided with a chamfer, and the chamfer forms a first guide inclined plane (114) for sleeving the valve port; a chamfer is formed on the port of the third joint body (12), and the chamfer forms a second guide inclined plane (124) for sleeving the nylon pipe.