A connector

Abstract

The present invention discloses a connector, including a main body, a sleeve, a center rod assembly, and a gasket. The main body has a fluid hole and a drive hole, and the fluid hole has a stepped hole at its air outlet end; one end of the sleeve is inserted from the air outlet end of the main body and forms a movable connection with the main body, and a sealing structure is formed between the inner wall of the sleeve and the outer wall of the main body; one end of the center rod assembly passes through the sleeve and enters the stepped hole, which includes a center rod upper section and a center rod lower section that are detachably connected together, and a quick-release structure that can control the disassembly of the center rod upper section and the center rod lower section, the outer end of the center rod upper section has a main sealing end, and the center rod assembly also forms a sealing structure with the sleeve; the gasket is sleeved on the outside of the center rod assembly, one end of which abuts the sleeve, and the other end extends to the main sealing end. The connector of the present invention has a quick-release structure. When disassembling the center rod upper section and the center rod lower section, it is only necessary to slide the sliding cover to loosen the ball bearing, and the center rod upper section and the center rod lower section can be quickly disassembled.

Description

Technical Field

[0001] The invention relates to a connector, in particular to a connector with a sealing ring that can be quickly replaced and a clamping ring that can be easily disassembled. Background Art

[0002] The G15 connector is a pneumatic quick-seal connector. Conventional G15 connectors have the problem that the sealing ring is difficult to replace and the retaining ring is difficult to remove.

[0003] like Figure 1 As shown, Figure 1 It is the structure of the G15 connector in the prior art. The main body 201 and the sleeve 202 are slidably connected and a sealing ring is provided at the connection. The central rod group 204 is passed through the sleeve 202 and the main body 201 and extends out of the sleeve 202. The outer end of the central rod group 204 is provided with a sealing end, which is inserted into the test tube 203. First, gas is filled from the eccentric hole to move the sleeve 202. The sleeve 202 is pressed against the sealing end to form a seal, and then the test gas is introduced into the test tube 203.

[0004] In the prior art, the defects of the G15 connector are as follows:

[0005] 1. The traditional G15 connector has poor air tightness.

[0006] 2. When replacing the sealing ring, it is necessary to remove the clamping rings of the main body 201 and the sleeve 202 using pliers, and then take out the sealing ring, which is a relatively cumbersome operation.

[0007] Therefore, the traditional G15 connector needs to be improved. Summary of the Invention

[0008] In view of the deficiencies in the prior art, the present invention aims to solve the technical problem of providing a connector. The purpose of designing the connector is that the upper section of the center rod and the lower section of the center rod can be disassembled without tools to remove the sealing ring.

[0009] To solve the above technical problems, the present invention is implemented through the following solutions: A connector of the present invention includes:

[0010] A main body having a fluid hole extending through both ends of the main body and a drive hole extending through both ends of the main body at an eccentric position, wherein the fluid hole has a stepped hole at its air outlet end;

[0011] a sleeve, one end of which is inserted into the air outlet end of the main body and is movably connected to the main body, and an inner wall of the sleeve also forms a sealing structure with an outer wall of the main body;

[0012] A center rod assembly, one end of which passes through the sleeve and enters the stepped hole, comprising a detachably connected center rod upper section and a center rod lower section, and a quick-release structure capable of controlling the detachment of the center rod upper section and the center rod lower section. The outer end of the center rod upper section has a main sealing end, and the center rod assembly also forms a sealing structure with the sleeve;

[0013] A gasket is sleeved outside the central rod assembly, one end of the gasket abuts against the sleeve, and the other end extends to the main sealing end.

[0014] Furthermore, a circle of limiting grooves is provided on the outer wall of the ring body, and a circle of first clamping grooves is provided on the inner wall of the sleeve. A first retaining ring is embedded in the first clamping groove, and the first retaining ring is limited to move in the limiting groove.

[0015] Furthermore, the sealing structure formed between the inner wall of the sleeve and the outer wall of the main body is: a circle of first grooves is set on the outer wall of the main body and connected to the air outlet end, a second sealing ring is sleeved on the first groove, and the second sealing ring also abuts against the inner wall of the sleeve.

[0016] Furthermore, the center rod assembly further includes a plurality of balls, a gasket, a main sealing ring, a sliding cover, a second retaining ring, a first spring, a middle sleeve, a top column and a second spring;

[0017] The middle sleeve has a first air channel running through both ends, the first air channel including an active cavity and a first narrow air channel communicating with the active cavity;

[0018] The top column has a second air passage running through both ends, and is movably placed in the movable cavity, and the column body of the top column is passed through the first narrow air passage. The lower section of the central rod has a third air passage running through both ends, which has a receiving cavity and a second narrow air passage communicating with the receiving cavity.

[0019] A third sealing ring is provided on the bottom annular surface of the receiving cavity, and the narrow end of the middle sleeve penetrates into the receiving cavity and abuts against the third sealing ring;

[0020] The lower section of the central rod is provided with a plurality of ball mounting holes distributed in a circular array on the wall of the second narrow airway, and the ball mounting holes are connected to the second narrow airway, and the plurality of balls are separately installed in each ball mounting hole;

[0021] The wide end of the lower section of the center rod passes through the sleeve and enters the stepped hole, a second spring is installed at the inner end of the stepped hole, the second spring abuts the top post, and one end of the lower section of the center rod is confined in the groove of the stepped hole;

[0022] An annular groove is provided on the outer wall of the narrow end of the lower section of the central rod, and a second retaining ring is embedded in the annular groove. The sliding cover is sleeved on the lower section of the central rod and can slide on the lower section of the central rod. The sliding cover can block and open the ball mounting hole through movement. The sliding cover is limited by the second retaining ring to form an anti-slip structure;

[0023] The rod body of the lower section of the center rod is sleeved with a first spring, one end of the first spring abuts against the sleeve, and the other end abuts against the annular surface of the sliding cover. The upper section of the center rod has a concave ring on the outer wall of one end of the upper section of the center rod inserted into the lower section of the center rod. After the upper section of the center rod is inserted into the lower section of the center rod, a number of balls are trapped in the concave ring and the balls are pressed by the sliding cover and are confined to the ball mounting hole, thereby forming a connection structure between the upper section of the center rod and the lower section of the center rod.

[0024] Furthermore, the inner ring of the sliding cover is provided with a circle of avoidance grooves, which can loosen the balls to form the quick-release structure after being moved to the ball mounting holes. After the balls are loosened, the upper section of the center rod can be separated from the lower section of the center rod.

[0025] Furthermore, the outer end of the upper section of the center rod is covered with a gasket and a main sealing ring, wherein the main sealing ring is located outside and is restricted.

[0026] Furthermore, the gasket has a cylindrical portion and a column portion connected to the cylindrical portion, the cylindrical portion is sleeved on the outside of the sliding cover, and is provided with at least one cavity that can touch the sliding cover from the outside, the column portion is sleeved on the rod body of the upper section of the center rod and the column portion abuts the gasket, the sliding cover can move in the cavity inside the cylindrical portion and the sliding cover is confined in the cavity inside the cylindrical portion.

[0027] Furthermore, a circle of second clamping grooves is provided in the cavity of the cylindrical portion, and a third retaining ring is clamped in the second clamping groove, and the third retaining ring can block the sliding cover.

[0028] Furthermore, the sealing structure formed between the center rod assembly and the sleeve is: a circle of second grooves is provided in the narrow hole of the sleeve, a first sealing ring is embedded in the second groove, and the inner ring of the first sealing ring abuts against the outer wall of the lower section of the center rod.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The connector of the present invention has a quick-release structure. When disassembling the upper section of the center rod and the lower section of the center rod, it is only necessary to slide the sliding cover to release the ball bearing, and the upper section of the center rod and the lower section of the center rod can be disassembled.

[0031] 2. After the upper section of the center rod and the lower section of the center rod are separated and the upper section of the center rod is pulled out, the top column will move outward along with the upper section of the center rod due to the action of the second spring, so that the ball is still in the avoidance groove of the sliding cover, so that the sliding cover does not rebound. When replacing the new upper section of the center rod, the new upper section of the center rod can be inserted to make the ball fall into the groove of the upper section of the center rod, and the sliding cover rebounds through the first spring, pressing the ball into the ball mounting hole. The upper section of the center rod and the lower section of the center rod form a fixed connection structure through the action of the ball.

[0032] 3. Add a limiting wire retaining ring on the washer to reduce the number of parts removed during disassembly.

[0033] 4. The main sealing ring of the present invention is easy to replace. After pulling out the upper section of the center rod, only the gasket and the main sealing ring need to be replaced. By using different lengths of the main sealing ring, a wider sealing range can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural diagram of a G15 connector in the prior art.

[0035] Figure 2 This is a three-dimensional structural diagram of the connector of the present invention.

[0036] Figure 3 It is a cross-sectional view of the connector of the present invention.

[0037] Figure 4 It is the main structure diagram of the present invention.

[0038] Figure 5 This is another perspective structural diagram of the subject of the present invention.

[0039] Figure 6 It is a structural diagram of the sleeve of the present invention.

[0040] Figure 7 This is a structural diagram of the connector of the present invention after the sleeve is removed.

[0041] Figure 8 It is a structural diagram of the gasket of the present invention.

[0042] Figure 9 This is another structural diagram of the gasket of the present invention.

[0043] Figure 10 It is a structural diagram of the center rod assembly of the present invention.

[0044] Figure 11 This is a structural diagram of the sliding cover of the present invention after being cut away.

[0045] Figure 12 for Figure 10 The structure diagram after removing the first spring and sliding cover.

[0046] Figure 13 for Figure 12 Structural diagram without the lower section of the center rod.

[0047] Figure 14 This is a structural diagram of the abutment between the top column and the upper section of the center rod of the present invention.

[0048] Figure 1 Markings in FIG: main body 201 , sleeve 202 , central rod assembly 204 , test tube 203 .

[0049] Figure 2-13 Markings in: main body 1, sleeve 2, first sealing ring 3, second sealing ring 4, gasket 5, main sealing ring 6, first retaining ring 8, sliding cover 9, second retaining ring 10, gasket 11, ball 12, lower section of center rod 13, upper section of center rod 14, first spring 15, third sealing ring 16, middle sleeve 17, top column 18, third retaining ring 19, second spring 20, first notch 21, second groove 22, first clamping groove 23, avoidance groove 91, center rod assembly 100, first groove 101, drive hole 102, fluid hole 103, limiting groove 104, second clamping groove 111, second notch 112, column part 113, air guide hole 114. DETAILED DESCRIPTION

[0050] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0051] Example 1: The specific structure of the present invention is as follows:

[0052] Please refer to the attached Figure 2-13 , a connector of the present invention comprises:

[0053] The main body 1 has a fluid hole 103 passing through both ends of the main body 1 and a drive hole 102 located at an eccentric position and passing through both ends of the main body 1. The fluid hole 103 has a stepped hole at its outlet end facing inward;

[0054] The sleeve 2 has one end which is inserted into the air outlet end of the main body 1 and is movably connected to the main body 1. The inner wall of the sleeve 2 also forms a sealing structure with the outer wall of the main body 1.

[0055] A center rod assembly 100, one end of which passes through the sleeve 2 and enters the stepped hole, and includes a detachably connected center rod upper section 14 and center rod lower section 13, and a quick-release structure capable of controlling the disassembly of the center rod upper section 14 and center rod lower section 13. The outer end of the center rod upper section 14 has a main sealing end, and the center rod assembly 100 also forms a sealing structure with the sleeve 2;

[0056] The washer 11 is sleeved on the outside of the central rod assembly 100, with one end thereof abutting against the sleeve 2 and the other end extending to the main sealing end.

[0057] A preferred technical solution of this embodiment is as follows: a circle of limiting grooves 104 is provided on the outer wall of the ring body 1, and a circle of first clamping grooves 23 is provided on the inner wall of the sleeve 2. A first retaining ring 8 is embedded in the first clamping groove 23, and the first retaining ring 8 is limited to move within the limiting groove 104.

[0058] A preferred technical solution of this embodiment: the sealing structure formed between the inner wall of the sleeve 2 and the outer wall of the main body 1 is: a circle of first grooves 101 is set on the outer wall of the main body 1 and connected to the air outlet end, and a second sealing ring 4 is sleeved on the first groove 101, and the second sealing ring 4 also abuts against the inner wall of the sleeve 2.

[0059] A preferred technical solution of this embodiment: the central rod assembly 100 further includes a plurality of balls 12, a gasket 5, a main sealing ring 6, a sliding cover 9, a second retaining ring 10, a first spring 15, a middle sleeve 17, a top column 18 and a second spring 20;

[0060] The middle sleeve 17 has a first air channel running through both ends, the first air channel including an active cavity and a first narrow air channel communicating with the active cavity;

[0061] The top column 18 has a second air passage running through both ends, and is movably placed in the movable cavity, and the column body of the top column is passed through the first narrow air passage. The lower section 13 of the central rod has a third air passage running through both ends, which has a receiving cavity and a second narrow air passage communicating with the receiving cavity.

[0062] A third sealing ring 16 is provided on the bottom annular surface of the receiving cavity, and the narrow end of the middle sleeve 17 penetrates into the receiving cavity and abuts against the third sealing ring 16;

[0063] The lower section 13 of the central rod is provided with a plurality of ball mounting holes distributed in a circular array on the wall of the second narrow airway, and the ball mounting holes are connected to the second narrow airway, and the plurality of balls 12 are respectively installed in each ball mounting hole;

[0064] The wide end of the lower section 13 of the central rod passes through the sleeve 2 and enters the stepped hole. A second spring 20 is installed at the inner end of the stepped hole. The second spring 20 abuts against the top column 18. One end of the lower section 13 of the central rod is confined in the groove of the stepped hole.

[0065] An annular groove is provided on the outer wall of the narrow end of the lower section 13 of the central rod, and a second retaining ring 10 is embedded in the annular groove. The sliding cover 9 is sleeved on the lower section 13 of the central rod and can slide on the lower section 13 of the central rod. The sliding cover 9 can block and open the ball mounting hole through movement. The sliding cover 9 is limited by the second retaining ring 10 to form an anti-slip structure;

[0066] The rod body of the lower section 13 of the center rod is sleeved with a first spring 15, one end of the first spring 15 abuts against the sleeve 2, and the other end abuts against the annular surface of the sliding cover 9. The upper section 14 of the center rod has a concave ring on the outer wall of one end inserted into the lower section 13 of the center rod. After the upper section 14 of the center rod is inserted into the lower section 13 of the center rod, a number of balls 12 are trapped in the concave ring and the balls 12 are pressed by the sliding cover 9 and are confined to the ball mounting hole, thereby forming a connection structure between the upper section 14 of the center rod and the lower section 13 of the center rod.

[0067] A preferred technical solution of this embodiment: the inner ring of the sliding cover 9 is provided with a circle of avoidance grooves 91, and after the avoidance grooves 91 are moved to the ball mounting holes, the plurality of balls 12 can be loosened to form the quick-release structure. After the plurality of balls 12 are loosened, the upper section 14 of the center rod can be separated from the lower section 13 of the center rod.

[0068] A preferred technical solution of this embodiment is as follows: the outer end of the upper section 14 of the center rod is covered with a gasket 5 and a main sealing ring 6, wherein the main sealing ring 6 is located outside and is restricted.

[0069] A preferred technical solution of this embodiment: the gasket 11 has a cylindrical portion and a columnar portion 113 connected to the cylindrical portion, the cylindrical portion is sleeved on the outside of the sliding cover 9, and is provided with at least one cavity that can touch the sliding cover 9 from the outside, the columnar portion 113 is sleeved on the rod body of the upper section 14 of the center rod and the columnar portion 113 abuts the gasket 5, the sliding cover 9 can move in the cavity inside the cylindrical portion and the sliding cover 9 is confined in the cavity inside the cylindrical portion.

[0070] A preferred technical solution of this embodiment is: a circle of second card grooves 111 is provided in the cavity of the cylindrical part, and a third retaining ring 19 is clamped in the second card groove 111. The third retaining ring 19 can block the sliding cover 9. A second notch 112 is also provided at the cavity mouth of the cylindrical part, and the second notch 112 is used to remove the third retaining ring 19.

[0071] A preferred technical solution of this embodiment: the sealing structure formed between the center rod assembly 100 and the sleeve 2 is: a circle of second groove 22 is provided in the narrow hole of the sleeve 2, and a first sealing ring 3 is embedded in the second groove 22, and the inner circle of the first sealing ring 3 abuts against the outer wall of the lower section 13 of the center rod.

[0072] The wide end of the sleeve 2 is further provided with a first notch 21 , through which the first retaining ring 8 can be seen, and through which the first retaining ring 8 can be removed.

[0073] Example 2:

[0074] The following is the working principle of the connector of the present invention:

[0075] 1. Sealing principle:

[0076] Insert the main sealing end of the connector of the present invention into the test tube 203, and fill gas from the drive hole 102 on the main body 1. The gas enters the inner cavity of the sleeve 2. The inner cavity formed between the sleeve 2 and the main body 1 is a closed cavity and the drive hole 102 is in an eccentric position. The filled gas acts on the cavity bottom surface of the sleeve 2. Since the sleeve 2 is a movable structure, it is pushed outward by the entering gas, and the sleeve 2 pushes the gasket 11. The cylindrical portion 113 at the front end of the gasket 11 presses against the gasket 5, and the gasket 5 then squeezes the main sealing ring 6. The main sealing ring 6 is deformed under force, so that the wall surface is tightly fitted with the test tube 203, thereby achieving a sealed connection between the main sealing ring 6 and the test tube 203.

[0077] 2. Quickly replace the main sealing ring 6.

[0078] like Figure 2-3 As shown, the sliding cover 9 is pushed out a distance toward the first spring 15 so that the ball mounting hole is opposite the avoidance groove 91. At this time, each ball 12 is in a loose state, and the upper section 14 of the center rod is no longer subject to resistance from the ball 12. Therefore, the upper section 14 of the center rod is pulled out. At the same time as the upper section 14 of the center rod is pulled out, the second spring 20 exerts a force on the top column 18, and the top column 18 is no longer subject to resistance. Its rod follows the upper section 14 of the center rod and moves outward until it reaches the ball mounting hole. Each ball 12 is blocked by the rod of the top column 18 and is still in the avoidance groove 91 and the ball mounting hole, so that the sliding cover 9 is restricted and cannot rebound to its initial position. This structure is convenient for inserting the upper section 14 of the center rod after replacing the main sealing ring 6.

[0079] After the upper section 14 of the center rod is pulled out, the gasket 5 and the main sealing ring 6 are taken out. After replacing the new main sealing ring 6, the gasket 5 is put on, and then the upper section 14 of the center rod is inserted into the sleeve 2 and the sliding cover 9, and then the top column 18 is tightened until the concave circle on the outer wall of the upper section 14 of the center rod reaches the ball mounting hole. At this time, each ball 12 can move, and the sliding cover 9 is no longer restricted by the ball 12. The elastic force of the first spring 15 causes the sliding cover 9 to move, and the inner wall surface of the sliding cover 9 that fits with the lower section 13 of the center rod covers the ball mounting hole, so that the ball 12 is restricted and cannot move. Part of the ball 12 is trapped in the concave circle of the upper section 14 of the center rod, and part of the ball is in the ball mounting hole. The lower section 13 of the center rod and the upper section 14 of the center rod are connected and fixed by each ball 12.

[0080] In summary, the connector of the present invention has a quick-release structure. When disassembling the upper section of the center rod and the lower section of the center rod, it is only necessary to slide the sliding cover 9 to release the ball, and the upper section of the center rod and the lower section of the center rod can be disassembled. After the upper section of the center rod and the lower section of the center rod are separated and the upper section of the center rod is pulled out, the top column will move outward with the upper section of the center rod due to the action of the second spring, so that the ball is still in the avoidance groove of the sliding cover, so that the sliding cover does not rebound. When replacing the new upper section of the center rod, the new upper section of the center rod can be inserted to allow the ball to fall into the groove of the upper section of the center rod. The sliding cover rebounds through the first spring and presses the ball into the ball mounting hole. The upper section of the center rod and the lower section of the center rod form a fixed connection structure through the action of the ball. A limited wire retaining ring is added to the gasket 11 to reduce the number of parts removed during disassembly. The main sealing ring of the present invention is easy to replace. After pulling out the upper section of the center rod, it is only necessary to replace the gasket and the main sealing ring. By changing the length of the main sealing ring, a wider sealing range can be achieved.

[0081] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A connector, characterized in that: include: A main body (1), the main body (1) having a fluid hole (103) passing through both ends of the main body (1) and a drive hole (102) located at an eccentric position and passing through both ends of the main body (1), wherein the fluid hole (103) has a stepped hole at its air outlet end facing inward; A sleeve (2) has one end inserted into the air outlet end of the main body (1) and forms a movable connection with the main body (1), and an inner wall of the sleeve (2) and an outer wall of the main body (1) form a sealing structure; A center rod assembly (100), one end of which passes through the sleeve (2) and enters the stepped hole, comprising a center rod upper section (14) and a center rod lower section (13) that are detachably connected together, and a quick-release structure capable of controlling the disassembly of the center rod upper section (14) and the center rod lower section (13); the outer end of the center rod upper section (14) has a main sealing end, and the center rod assembly (100) also forms a sealing structure with the sleeve (2); a gasket (11), which is sleeved on the outside of the central rod assembly (100), with one end thereof abutting against the sleeve (2) and the other end extending to the main sealing end; The sealing structure formed between the inner wall of the sleeve (2) and the outer wall of the main body (1) is as follows: a circle of first grooves (101) are provided on the outer wall of the main body (1) and connected to the air outlet end; a second sealing ring (4) is sleeved on the first groove (101); and the second sealing ring (4) is also in contact with the inner wall of the sleeve (2); The central rod assembly (100) further comprises a plurality of balls (12), a gasket (5), a main sealing ring (6), a sliding cover (9), a second retaining ring (10), a first spring (15), a middle sleeve (17), a top column (18) and a second spring (20); The middle sleeve (17) has a first airway running through both ends, the first airway including an active cavity and a first narrow airway communicating with the active cavity; The top column (18) has a second air passage passing through both ends, and is movably placed in the movable cavity, and the column body of the top column is passed through the first narrow air passage. The lower section of the central rod (13) has a third air passage passing through both ends, and has a receiving cavity and a second narrow air passage communicating with the receiving cavity. A third sealing ring (16) is provided on the bottom annular surface of the receiving cavity, and the narrow end of the middle sleeve (17) penetrates into the receiving cavity and abuts against the third sealing ring (16); The lower section (13) of the central rod is provided with a plurality of ball mounting holes distributed in a ring array on the wall of the second narrow airway, and the ball mounting holes are communicated with the second narrow airway, and the plurality of balls (12) are separately installed in each ball mounting hole; The wide end of the lower section (13) of the central rod passes through the sleeve (2) and enters the stepped hole. A second spring (20) is installed at the inner end of the stepped hole. The second spring (20) abuts against the top column (18). One end of the lower section (13) of the central rod is confined in the groove of the stepped hole. An annular groove is provided on the outer wall of the narrow end of the lower section of the central rod (13), and a second retaining ring (10) is embedded in the annular groove. The sliding cover (9) is sleeved on the lower section of the central rod (13) and can slide on the lower section of the central rod (13). The sliding cover (9) can block the ball mounting hole and open the ball mounting hole through movement. The sliding cover (9) is limited by the second retaining ring (10) to form an anti-slip structure. The rod body of the lower section of the center rod (13) is sleeved with a first spring (15), one end of the first spring (15) abuts against the sleeve (2), and the other end abuts against the annular surface of the sliding cover (9). The upper section of the center rod (14) has a concave ring on its outer wall at one end inserted into the lower section of the center rod (13). After the upper section of the center rod (14) is inserted into the lower section of the center rod (13), a plurality of balls (12) are sunk into the concave ring and the plurality of balls (12) are pressed by the sliding cover (9) and are confined to the ball mounting hole, thereby forming a connection structure between the upper section of the center rod (14) and the lower section of the center rod (13); The inner ring of the sliding cover (9) is provided with a circle of avoidance grooves (91). When the avoidance grooves (91) are moved to the ball mounting holes, the plurality of balls (12) can be loosened to form the quick-release structure. After the plurality of balls (12) are loosened, the upper section (14) of the center rod can be separated from the lower section (13) of the center rod.

2. A connector according to claim 1, characterized in that: The outer wall of the ring body (1) is provided with a circle of limiting grooves (104), and the inner wall of the sleeve (2) is provided with a circle of first clamping grooves (23). A first retaining ring (8) is embedded in the first clamping groove (23), and the first retaining ring (8) is limited to move in the limiting groove (104).

3. The connector according to claim 1, wherein: The outer end of the upper section (14) of the central rod is covered with a gasket (5) and a main sealing ring (6), wherein the main sealing ring (6) is located outside and is restricted.

4. A connector according to claim 3, characterized in that: The gasket (11) comprises a cylindrical portion and a columnar portion (113) connected to the cylindrical portion. The cylindrical portion is sleeved on the outside of the sliding cover (9) and is provided with at least one cavity capable of contacting the sliding cover (9) from the outside. The columnar portion (113) is sleeved on the rod body of the upper section (14) of the central rod and the columnar portion (113) abuts against the gasket (5). The sliding cover (9) can move in the cavity inside the cylindrical portion and the sliding cover (9) is confined in the cavity inside the cylindrical portion.

5. A connector according to claim 4, characterized in that: A circle of second clamping grooves (111) is provided in the cavity of the cylindrical body, and a third retaining ring (19) is clamped in the second clamping groove (111), and the third retaining ring (19) can retain the sliding cover (9).

6. The connector according to claim 1, wherein: The sealing structure formed between the center rod assembly (100) and the sleeve (2) is as follows: a circle of second grooves (22) is provided in the narrow hole of the sleeve (2), a first sealing ring (3) is embedded in the second groove (22), and the inner ring of the first sealing ring (3) abuts against the outer wall of the lower section (13) of the center rod.

Images