Waterproof PIN connector

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a waterproof PIN connector, which comprises a male connector main body and a female connector main body, the male connector main body is provided with a metal pin part, the female connector main body is provided with a jack part, the jack part is used for bearing the metal pin part, the waterproof PIN connector further comprises a plugging taper sleeve, the plugging taper sleeve is arranged on the side wall of the male connector main body, and the plugging taper sleeve is arranged on the side wall of the female connector main body. The metal pin part is arranged on the inner side of the inserting taper sleeve; the bearing taper sleeve is installed on the side wall of the female head body, the insertion hole part is arranged on the inner side of the bearing taper sleeve, and after the insertion taper sleeve is inserted into the bearing taper sleeve, the conical surface of the insertion taper sleeve abuts against the conical surface of the bearing taper sleeve. The waterproof performance between the male head and the female head can be improved, bending deformation of the metal pins can be avoided as much as possible, plugging abrasion is reduced, the waterproof sealing performance is indirectly improved, meanwhile, the sealing performance of the seam can be improved, loosening of the male head and the female head is avoided, and the connection stability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of connectors, and particularly relates to a waterproof PIN-pin connector. Background Art

[0002] PIN-pin connectors are key connection components in electronic devices. Electrical signals and power are transmitted through the insertion and extraction of metal pins and corresponding interfaces. They are widely used in fields such as consumer electronics, automobiles, and industrial control. Their reliable connection performance ensures the stable operation of devices.

[0003] Currently, in order to prevent water vapor from invading and affecting the normal operation of PIN-pin connectors, a waterproof structure needs to be added at the connection between the male head and the female head to improve its water vapor resistance. For example, a waterproof and anti-bending high-performance PIN-pin connector disclosed in Patent Publication No. CN113078493A; existing waterproof PIN-pin connectors often increase the compression amount of the sealing ring and reduce the tolerance fit gap to improve the insertion and extraction tightness in order to enhance the waterproof performance, resulting in a significant increase in the insertion and extraction force. When the male head and the female head are offset axially or skewed at an angle during the insertion and extraction process, the metal pins with a smaller diameter (usually ≤ 1 mm) are prone to plastic bending deformation under the action of a lateral eccentric moment due to insufficient rigidity. At the same time, it will exacerbate the sliding friction between the end face of the pin and the inner wall of the jack, resulting in wear of the surface plating and an increase in the cylindricity deviation of the pins, which not only affects the electrical conductivity reliability but also deteriorates the waterproof structure due to an increase in the gap of the sealing interface. Especially in high-frequency insertion and extraction scenarios, the above problems are more prominent. Summary of the Invention

[0004] The purpose of the present invention is to address the above problems and provide a waterproof PIN-pin connector.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A waterproof PIN-pin connector includes a male head body and a female head body. The male head body is provided with a metal pin part, and the female head body is provided with a jack part for receiving the metal pin part. It further includes: A plugging taper sleeve installed on the side wall of the male head body, and the metal pin part is arranged inside the plugging taper sleeve; A receiving taper sleeve installed on the side wall of the female head body, and the jack part is arranged inside the receiving taper sleeve. After the plugging taper sleeve is inserted into the receiving taper sleeve, the tapered surface of the plugging taper sleeve abuts against the tapered surface of the receiving taper sleeve; Two grooved blocks are respectively installed on both sides of the inner wall of the plugging taper sleeve, and a traveling mechanism is installed inside each of the two grooved blocks, and the traveling mechanism travels along the outer wall of the jack part; A sealing unit is installed on the outer wall of the plugging taper sleeve. The sealing unit is used to increase the sealing performance after the plugging taper sleeve and the receiving taper sleeve are plugged. A gas storage unit is installed on each of the two grooved blocks, and the gas storage unit is used to supply gas to the inside of the sealing unit.

[0006] Preferably, each of the two traveling mechanisms includes a gear rotatably disposed inside the trough-shaped block. A plurality of evenly arranged engaging teeth are provided on the side wall of the jack portion, and the gear moves and rotates along the plurality of engaging teeth.

[0007] Preferably, the sealing unit includes an annular mounting groove formed on the outer side wall of the plugging conical sleeve. A pressing ring is sleeved at the notch of the annular mounting groove. An annular sealing groove is formed on the side wall of the pressing ring, and a sealing film ring is encapsulated at the notch of the annular sealing groove. An annular pressing groove matching the pressing ring is formed on the inner wall of the receiving conical sleeve. An anti-detachment component is provided on the side wall of the pressing ring.

[0008] Preferably, each of the two gas storage units includes a cylinder fixedly installed inside the trough-shaped block. A gas storage piston is slidably disposed inside the cylinder. A return spring is disposed between the side wall of the gas storage piston and the inner wall of the cylinder. An exhaust pipe is fixedly communicated with the side wall of the cylinder, and an exhaust one-way valve is installed inside the exhaust pipe. An air inlet hole is formed on the side wall of the cylinder, and an air inlet one-way valve is installed inside the air inlet hole. An air storage hole is formed on the groove wall of the annular mounting groove, and the air storage hole is communicated with the exhaust pipe. Two plugging components are disposed inside the annular mounting groove, and both of the two plugging components are communicated with the annular sealing groove. The gear is equipped with a transmission component for driving the gas storage piston to move.

[0009] Preferably, the anti-detachment component includes two grooves formed on the side wall of the pressing ring, and both of the two grooves are communicated with the annular mounting groove. Fixed sleeves are fixedly encapsulated at the notches of the two grooves, and anti-detachment pistons are slidably disposed inside the two fixed sleeves. A support spring is disposed between the anti-detachment piston and the bottom of the groove. An anti-detachment block is fixedly installed on the side wall of the anti-detachment piston. An anti-detachment groove matching the anti-detachment block is formed on the groove wall of the annular pressing groove.

[0010] Preferably, each of the two plugging components includes a plugging hole formed on the groove wall of the annular mounting groove. A sealing plug block is disposed inside the annular mounting groove and is located at the air inlet end of the plugging hole. A connecting block is fixedly installed inside the annular mounting groove, and an elastic pad is fixedly disposed between the connecting block and the sealing plug block. A plugging rod matching the plugging hole is fixedly installed inside the receiving conical sleeve. After the plugging rod is inserted into the plugging hole, the sealing plug block can be pushed away from the plugging hole. A diversion hole communicated with the annular sealing groove is formed on the hole wall of the plugging hole.

[0011] Preferably, both of the transmission components include cams arranged on both sides of the gear. Both of the cams are fixedly mounted on the axle of the gear. Two extrusion rods are fixedly mounted on the side wall of the air storage piston, and the two extrusion rods are slidably connected to the end of the cylinder barrel. The rod ends of the two extrusion rods are fixedly connected together with a connecting plate, and two impact rods are fixedly connected to the side wall of the connecting plate. One end of each of the two impact rods away from the air storage piston extends to one side of the cam.

[0012] Preferably, an air vent hole is formed in the wall of the annular mounting groove. An air vent groove communicating with the air vent hole is formed in the side wall of the male head body. A stop block corresponding to the position of the air vent groove is mounted on the side wall of the male head body, and a round hole is formed in the side wall of the stop block. A pressing block abutting against the side wall of the stop block is arranged inside the air vent groove. The pressing block is used to block the round hole. A rubber support block is fixedly arranged between the side wall of the pressing block and the wall of the air vent groove.

[0013] Compared with the existing technology, a waterproof PIN pin connector has the following advantages: 1. Through the mutual cooperation of the male head body, female head body, metal pin feet, jack parts, plugging conical sleeves and receiving conical sleeves, the "wedging effect" formed by the abutting of the conical surfaces of the plugging conical sleeve and the receiving conical sleeve can be utilized after the male head and the female head are plugged, so as to improve the waterproof performance between the male head and the female head. Secondly, with the cooperation of the walking mechanism arranged, rolling plugging can be used instead of traditional sliding plugging, effectively avoiding the axis deviation or angular skew during the plugging and unplugging of the connector, thereby avoiding the bending deformation of the metal pin feet as much as possible and reducing the wear during the plugging and unplugging of the male head and the female head, and indirectly improving the waterproof sealing performance.

[0014] 2. Through the air storage unit arranged, the airflow generated during walking can be utilized. After the male head and the female head are plugged, the stored airflow is used to further increase the sealing performance at the joint of the male head and the female head, and the waterproof effect is good.

[0015] 3. Through the anti-loosening component arranged, the airflow stored in the air storage unit can be utilized to perform clamping and fixing between the male head and the female head after the male head and the female head are plugged, avoiding the loosening phenomenon of the male head and the female head, and improving the connection stability of the PIN pin connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a waterproof PIN pin connector provided by the present invention; Figure 2 is a three-dimensional structural diagram of the female head body of a waterproof PIN pin connector provided by the present invention; Figure 3 is a three-dimensional structural diagram of the male head body of a waterproof PIN pin connector provided by the present invention; Figure 4 It is a schematic internal structure diagram of the female head body and the male head body of a waterproof PIN - pin connector provided by the present invention; Figure 5 It is a schematic internal structure diagram of a groove - shaped block of a waterproof PIN - pin connector provided by the present invention; Figure 6 It is a waterproof PIN - pin connector provided by the present invention Figure 5 The enlarged structure diagram of part A in it; Figure 7 It is a partial structure schematic diagram of an annular pressing groove of a waterproof PIN - pin connector provided by the present invention; Figure 8 It is a waterproof PIN - pin connector provided by the present invention Figure 4 The enlarged structure diagram of part B in it.

[0017] In the figure: 1 male head body, 2 female head body, 3 metal pin foot part, 4 jack part, 5 insertion taper sleeve, 6 receiving taper sleeve, 7 groove - shaped block, 8 traveling mechanism, 81 gear, 82 meshing tooth, 9 sealing unit, 91 annular installation groove, 92 pressing ring, 93 annular sealing groove, 94 sealing film ring, 95 annular pressing groove, 10 air storage unit, 101 cylinder barrel, 102 air storage piston, 103 return spring, 104 exhaust pipe, 105 exhaust check valve, 106 air inlet hole, 107 air inlet check valve, 108 air storage hole, 11 anti - detachment component, 111 groove, 112 fixing sleeve, 113 anti - detachment piston, 114 support spring, 115 anti - detachment block, 116 anti - detachment groove, 12 plugging component, 121 insertion hole, 122 sealing plug block, 123 connecting block, 124 elastic pad, 125 insertion rod, 126 shunt hole, 13 transmission component, 131 cam, 132 extrusion rod, 133 connecting plate, 134 impact rod, 14 air release hole, 15 air release groove, 16 stop block, 17 round hole, 18 pressing block, 19 rubber support block. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Such as Figures 1-8As shown in the figure, a waterproof PIN needle connector includes a male head body 1 and a female head body 2. The male head body 1 is provided with a metal pin foot part 3, and the female head body 2 is provided with a jack part 4. The jack part 4 is used to receive the metal pin foot part 3. It further includes: a plugging taper sleeve 5, which is installed on the side wall of the male head body 1, and the metal pin foot part 3 is arranged inside the plugging taper sleeve 5; a receiving taper sleeve 6, which is installed on the side wall of the female head body 2, and the jack part 4 is arranged inside the receiving taper sleeve 6. After the plugging taper sleeve 5 is inserted into the receiving taper sleeve 6, the tapered surface of the plugging taper sleeve 5 abuts against the tapered surface of the receiving taper sleeve 6. Two groove-shaped blocks 7 are respectively installed on both sides of the inner wall of the plugging taper sleeve 5, and a traveling mechanism 8 is installed inside each of the two groove-shaped blocks 7. The traveling mechanism 8 travels along the outer wall of the jack part 4. Both of the two traveling mechanisms 8 include a gear 81 rotatably arranged inside the groove-shaped block 7. The side wall of the jack part 4 is provided with a plurality of evenly arranged meshing teeth 82, and the gear 81 moves and rotates along the plurality of meshing teeth 82.

[0020] A sealing unit 9 is installed on the outer wall of the plugging taper sleeve 5. The sealing unit 9 is used to increase the sealing performance after the plugging taper sleeve 5 is inserted into the receiving taper sleeve 6. A gas storage unit 10 is installed on each of the two groove-shaped blocks 7. The gas storage unit 10 is used to supply gas to the inside of the sealing unit 9. The sealing unit 9 includes an annular installation groove 91 opened on the outer side wall of the plugging taper sleeve 5. A pressing ring 92 is sleeved at the notch of the annular installation groove 91. An annular sealing groove 93 is opened on the side wall of the pressing ring 92, and a sealing film ring 94 is sealed at the notch of the annular sealing groove 93. An annular pressing groove 95 matching the pressing ring 92 is opened on the inner wall of the receiving taper sleeve 6. A anti-disengagement component 11 is arranged on the side wall of the pressing ring 92. The anti-disengagement component 11 includes two grooves 111 opened on the side wall of the pressing ring 92, and both of the two grooves 111 communicate with the annular installation groove 91. Fixed sleeves 112 are fixedly sealed at the notches of the two grooves 111, and anti-disengagement pistons 113 are slidably arranged inside the two fixed sleeves 112. A support spring 114 is arranged between the anti-disengagement piston 113 and the bottom of the groove 111. An anti-disengagement block 115 is fixedly installed on the side wall of the anti-disengagement piston 113. An anti-disengagement groove 116 matching the anti-disengagement block 115 is opened on the groove wall of the annular pressing groove 95. After the anti-disengagement block 115 is inserted into the anti-disengagement groove 116, it can prevent the male head body 1 from separating from the female head body 2.

[0021] Both gas storage units 10 include a cylinder 101 fixedly installed inside the trough-shaped block 7. A gas storage piston 102 is slidably arranged inside the cylinder 101. A return spring 103 is arranged between the side wall of the gas storage piston 102 and the inner wall of the cylinder 101. The side wall of the cylinder 101 is fixedly communicated with an exhaust pipe 104, and an exhaust check valve 105 is installed inside the exhaust pipe 104. An air inlet hole 106 is opened on the side wall of the cylinder 101, and an air inlet check valve 107 is installed inside the air inlet hole 106. An air storage hole 108 is opened on the groove wall of the annular installation groove 91, and the air storage hole 108 is communicated with the exhaust pipe 104. Two blocking components 12 are arranged inside the annular installation groove 91, and both of the two blocking components 12 are communicated with the annular sealing groove 93. Both of the two blocking components 12 include a plug hole 121 opened on the groove wall of the annular installation groove 91. A sealing plug 122 is arranged inside the annular installation groove 91, and the sealing plug 122 is arranged at the air inlet end of the plug hole 121. A connecting block 123 is fixedly installed inside the annular installation groove 91, and an elastic pad 124 is fixedly arranged between the connecting block 123 and the sealing plug 122. An insertion rod 125 matching the plug hole 121 is fixedly installed inside the receiving conical sleeve 6. After the insertion rod 125 is inserted into the plug hole 121, the sealing plug 122 can be pushed away from the plug hole 121. A diversion hole 126 communicated with the annular sealing groove 93 is opened on the hole wall of the plug hole 121, which can avoid the premature discharge of the generated air flow during the insertion process.

[0022] A transmission component 13 is installed on the gear 81. The transmission component 13 is used to drive the gas storage piston 102 to move. Both of the two transmission components 13 include cams 131 arranged on both sides of the gear 81. Both of the two cams 131 are fixedly arranged on the axle of the gear 81. Two extrusion rods 132 are fixedly installed on the side wall of the gas storage piston 102, and both of the two extrusion rods 132 are slidably connected with the end of the cylinder 101. The rod ends of the two extrusion rods 132 are fixedly connected together with a connecting plate 133, and two impact rods 134 are fixedly connected to the side wall of the connecting plate 133. One end of each of the two impact rods 134 away from the gas storage piston 102 extends to one side of the cam 131. The rod end of the impact rod 134 is provided with a hemispherical structure to avoid the smooth transition between the impact rod 134 and the cam 131.

[0023] An air release hole 14 is opened on the groove wall of the annular installation groove 91. An air release groove 15 communicated with the air release hole 14 is opened on the side wall of the male head body 1. A block 16 corresponding to the position of the air release groove 15 is installed on the side wall of the male head body 1, and a round hole 17 is opened on the side wall of the block 16. A pressing block 18 abutted against the side wall of the block 16 is arranged inside the air release groove 15. The pressing block 18 is used to block the round hole 17. A rubber support block 19 is fixedly arranged between the side wall of the pressing block 18 and the groove wall of the air release groove 15. Through the support of the rubber support block 19 for the pressing block 18, the round hole 17 can be stably sealed.

[0024] The operating principle of the present invention is now described as follows: when the male body 1 and the female body 2 are plugged in, the male body 1 is aligned with the female body 2, and then the plug-in cone sleeve 5 is inserted into the receiving cone sleeve 6. When the gear 81 on the side wall of the plug-in cone sleeve 5 contacts the meshing teeth 82 of the socket portion 4, the gear 81 can move along the meshing teeth 82, and due to the meshing action of the gear 81 and the meshing teeth 82, even if the direction of the force applied by the person is skewed or offset, the plug-in cone sleeve 5 cannot be skewed, so it can be Ensure that after the plug-in cone sleeve 5 is inserted into the receiving cone sleeve 6, the plug-in cone sleeve 5 and the receiving cone sleeve 6 are kept in the same straight line. Similarly, when the male head body 1 is pulled out from the female head body 2, under the action of the gear 81 and the meshing teeth 82, the plug-in cone sleeve 5 and the receiving cone sleeve 6 can still be kept in the same straight line, thereby avoiding bending of the metal pin part 3 during the plugging and unplugging process of the male head body 1 and the female head body 2, and avoiding excessive wear of the male head body 1 and the female head body 2; In the process of inserting the male head body 1, since the gear 81 is acted upon by the meshing teeth 82, the gear 81 will not only move along the meshing teeth 82, but also rotate. When rotating, the gear 81 will drive the two cams 131 to rotate through its own shaft. When the cam 131 is away from the end of the axle of the gear 81 and contacts the impact rod 134, the cam 131 will push the impact rod 134 to move, and the impact rod 134 will drive the extrusion rod 132 to move through the connecting plate 133, and the extrusion rod 132 will drive the gas storage piston 102 to move, and the gas storage piston 102 will squeeze the space inside the cylinder 101. Under the action of the intake check valve 107 and the exhaust check valve 105, the air inside the cylinder 101 can only be discharged into the annular mounting groove 91 along the exhaust pipe 104. When the cam 131 is separated from the impact rod 134, under the action of the return spring 103, the gas storage piston 102 moves back to reset, at this time, the external air is supplemented into the cylinder barrel 101 through the air inlet hole 106, and the air storage piston 102 moves back and forth through the rotation of the cam 131, and can continuously inflate the annular mounting groove 91. In the plugging process, the sealing block 122 blocks the plugging hole 121 under the action of the elastic pad 124, so the air in the annular mounting groove 91 cannot be discharged, so the air pressure in the annular mounting groove 91 continues to increase. Therefore, as the plugging goes deeper, due to the increase in the air pressure in the annular mounting groove 91, the air storage piston 102 compresses the pressure of the internal space of the cylinder barrel 101, so the movement resistance of the air storage piston 102 becomes larger, thereby making the rotation resistance of the gear 81 larger, that is, as the plugging depth of the male head body 1 increases, the movement resistance of the male head body 1 becomes larger, so as to avoid excessive plugging force applied by personnel, resulting in excessive collision between the metal pin part 3 and the socket part 4; When the male head body 1 is inserted in place, the insertion rod 125 will be inserted into the insertion hole 121, and the insertion rod 125 will push the sealing plug 122 open a certain distance. At this time, the air stored in the annular installation groove 91 will enter the annular sealing groove 93 through the insertion hole 121 and the shunt hole 126, so as to increase the air pressure difference inside the sealing film ring 94. Under the action of the positive pressure, the pressing force between the sealing film ring 94 and the inner wall of the receiving cone sleeve 6 increases, thereby increasing the sealing performance after the insertion cone sleeve 5 and the receiving cone sleeve 6 are inserted; At the same time, part of the air entering the annular sealing groove 93 will enter the inside of the groove 111. When the air pressure inside the groove 111 increases, it will push the anti - detachment piston 113 to move outward, so as to push the anti - detachment block 115 to snap into the anti - detachment groove 116, avoiding the detachment of the male head body 1 and the female head body 2 due to external force after being inserted; When wanting to separate the male head body 1 and the female head body 2, the operator presses the pressing block 18 to create a gap between the pressing block 18 and the stop block 16. At this time, the excess air in the annular sealing groove 93 and the groove 111 flows back to the air release hole 14 through the annular shunt hole 126, the insertion hole 121, and the annular installation groove 91, and is discharged through the air release groove 15. At this time, the anti - detachment block 115 moves back and resets under the pulling action of the support spring 114, and then the operator can pull out the male head body 1.

[0025] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waterproof PIN needle connector, comprising a male head body (1) and a female head body (2), wherein the male head body (1) is provided with a metal pin foot portion (3), and the female head body (2) is provided with a jack portion (4), and the jack portion (4) is used for receiving the metal pin foot portion (3), characterized in that, Further comprising: A plug-in cone sleeve (5), installed on the side wall of the male head body (1), and the metal pin feet (3) are arranged inside the plug-in cone sleeve (5); A receiving cone sleeve (6), installed on the side wall of the female head body (2), and the jack portion (4) is arranged inside the receiving cone sleeve (6). After the plug-in cone sleeve (5) is inserted into the receiving cone sleeve (6), the tapered surface of the plug-in cone sleeve (5) abuts against the tapered surface of the receiving cone sleeve (6); Two channel-shaped blocks (7), respectively installed on both sides of the inner wall of the plug-in cone sleeve (5), and a traveling mechanism (8) is installed inside each of the two channel-shaped blocks (7), and the traveling mechanism (8) travels along the outer wall of the jack portion (4); A sealing unit (9), installed on the outer wall of the plug-in cone sleeve (5), the sealing unit (9) is used to increase the sealing performance after the plug-in cone sleeve (5) is inserted into the receiving cone sleeve (6). A gas storage unit (10) is installed on each of the two channel-shaped blocks (7), and the gas storage unit (10) is used to supply gas to the inside of the sealing unit (9).

2. The waterproof PIN pin connector according to claim 1, characterized in that, Each of the two traveling mechanisms (8) includes a gear (81) rotatably arranged inside the channel-shaped block (7). A plurality of uniformly arranged meshing teeth (82) are provided on the side wall of the jack portion (4), and the gear (81) moves and rotates along the plurality of meshing teeth (82).

3. The waterproof PIN pin connector according to claim 2, wherein The sealing unit (9) includes an annular installation groove (91) opened on the outer side wall of the plug-in cone sleeve (5). A pressing ring (92) is sleeved at the notch of the annular installation groove (91). An annular sealing groove (93) is opened on the side wall of the pressing ring (92), and a sealing film ring (94) is sealed at the notch of the annular sealing groove (93). An annular pressing groove (95) matching the pressing ring (92) is opened on the inner wall of the receiving cone sleeve (6). An anti-disengagement component (11) is arranged on the side wall of the pressing ring (92).

4. The waterproof PIN pin connector according to claim 3, wherein Each of the two gas storage units (10) includes a cylinder (101) fixedly installed inside the channel-shaped block (7). A gas storage piston (102) is slidably arranged inside the cylinder (101). A return spring (103) is arranged between the side wall of the gas storage piston (102) and the inner wall of the cylinder (101). An exhaust pipe (104) is fixedly communicated with the side wall of the cylinder (101), and an exhaust check valve (105) is installed inside the exhaust pipe (104). An air inlet hole (106) is opened on the side wall of the cylinder (101), and an air inlet check valve (107) is installed inside the air inlet hole (106). An air storage hole (108) is opened on the groove wall of the annular installation groove (91), and the air storage hole (108) is communicated with the exhaust pipe (104). Two blocking components (12) are arranged inside the annular installation groove (91), and both of the two blocking components (12) are communicated with the annular sealing groove (93). The gear (81) is equipped with a transmission component (13), and the transmission component (13) is used to drive the gas storage piston (102) to move.

5. The waterproof PIN pin connector according to claim 4, characterized in that, The anti - detachment component (11) includes two grooves (111) opened on the side wall of the pressing ring (92), and both of the two grooves (111) communicate with the annular installation groove (91). Fixed sleeves (112) are fixedly sealed at the openings of the two grooves (111), and anti - detachment pistons (113) are slidably arranged inside the two fixed sleeves (112). A support spring (114) is arranged between the anti - detachment piston (113) and the bottom of the groove (111). An anti - detachment block (115) is fixedly installed on the side wall of the anti - detachment piston (113), and an anti - detachment groove (116) matching the anti - detachment block (115) is opened on the wall of the annular pressing groove (95).

6. The waterproof PIN pin connector according to claim 4, characterized in that, Both of the two plugging components (12) include insertion holes (121) opened on the wall of the annular installation groove (91). A sealing plug block (122) is arranged inside the annular installation groove (91), and the sealing plug block (122) is arranged at the air inlet end of the insertion hole (121). A connecting block (123) is fixedly installed inside the annular installation groove (91), and an elastic pad (124) is fixedly arranged between the connecting block (123) and the sealing plug block (122). A plugging rod (125) matching the insertion hole (121) is fixedly installed inside the receiving conical sleeve (6). After the plugging rod (125) is inserted into the insertion hole (121), the sealing plug block (122) can be pushed away from the insertion hole (121). A diversion hole (126) communicating with the annular sealing groove (93) is opened on the wall of the insertion hole (121).

7. A waterproof PIN pin connector according to claim 5, characterized in that, Both of the two transmission components (13) include cams (131) arranged on both sides of the gear (81). Both of the two cams (131) are fixedly installed on the axle of the gear (81). Two extrusion rods (132) are fixedly installed on the side wall of the air storage piston (102), and the two extrusion rods (132) are slidably connected to the end of the cylinder barrel (101). The ends of the two extrusion rods (132) are fixedly connected together with a connecting plate (133), and two impact rods (134) are fixedly connected to the side wall of the connecting plate (133). One end of each of the two impact rods (134) far away from the air storage piston (102) extends to one side of the cam (131).

8. A waterproof PIN pin connector according to claim 3, characterized in that, An air release hole (14) is opened on the wall of the annular installation groove (91). An air release groove (15) communicating with the air release hole (14) is opened on the side wall of the male head body (1). A stop block (16) corresponding to the position of the air release groove (15) is installed on the side wall of the male head body (1), and a round hole (17) is opened on the side wall of the stop block (16). A pressing block (18) abutted against the side wall of the stop block (16) is arranged inside the air release groove (15). The pressing block (18) is used to block the round hole (17), and a rubber support block (19) is fixedly arranged between the side wall of the pressing block (18) and the wall of the air release groove (15).

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