A dry joint

Abstract

The present invention relates to the technical field of connectors, and discloses a dry connector, which includes a valve body, a control pipe, a first opening and closing member, and a second opening and closing member; one end of the control pipe is inserted into the valve body; the pipe wall of the control pipe is provided with a first slideway and a second slideway; the first opening and closing member includes a first pulley, a first connecting member, and a first valve flap; the first pulley is arranged on the first slideway; the first valve flap covers one end of the control pipe; the first connecting member connects the first pulley and the first valve flap respectively; the second opening and closing member includes a second pulley, a second connecting member, and a second valve flap; the second pulley is arranged on the second slideway; the second valve flap covers one end of the valve body away from the control pipe; the second connecting member connects the second pulley and the second valve flap respectively. The structure of the present invention is compact and stable, can provide double insurance, and avoid the volatilization of residual materials in the pipeline to the outside, protecting the environment and the safety of personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a dry connector. Background Art

[0002] In current existing products, environmental pollution is caused by the leakage of the valve core. Economic losses will also occur if the leakage is not discovered in time. When used in the chemical field, leakage may cause potential chemical reactions leading to combustion, seriously polluting the environment and posing an explosion safety hazard. Even some chemicals are highly toxic, seriously threatening the lives and health of surrounding operators. Summary of the Invention

[0003] The purpose of the present invention is to provide a dry connector, which has a compact and stable structure, can provide double insurance, and can prevent the residual materials in the pipeline from volatilizing outwards, protecting the environment and personnel safety.

[0004] To solve the above technical problems, the present invention provides a dry connector, including a valve body, a control pipe, a first opening and closing member, and a second opening and closing member;

[0005] One end of the control pipe is inserted into the valve body; the pipe wall of the control pipe is provided with a first slideway and a second slideway;

[0006] The first opening and closing member includes a first pulley, a first connecting member, and a first valve flap; the first pulley is arranged on the first slideway; the first valve flap covers one end of the control pipe away from the valve body; the first connecting member connects the first pulley and the first valve flap respectively;

[0007] The second opening and closing member includes a second pulley, a second connecting member, and a second valve flap; the second pulley is arranged on the second slideway; the second valve flap covers one end of the valve body away from the control pipe; the second connecting member connects the second pulley and the second valve flap respectively;

[0008] When the control pipe rotates along the inner wall of the valve body, the first pulley slides on the first slideway, the first connecting member drives the first valve flap to lift and lower, the second pulley slides on the second slideway, and the second connecting member drives the second valve flap to lift and lower.

[0009] Preferably, the first slideway is of an inclined structure, and one end of the first slideway extends obliquely towards the direction close to the first valve flap.

[0010] Preferably, two first sliding grooves are provided, and the two first sliding grooves are oppositely arranged; two first pulleys are provided, and the first pulleys are correspondingly arranged in the first sliding grooves; the first connecting member includes a first connecting shaft and a first rotating shaft, one end of the first rotating shaft is connected to the first connecting shaft, the other end is connected to the first valve flap, and the two ends of the first connecting shaft are correspondingly connected to the first pulleys.

[0011] Preferably, the second sliding groove is of an inclined structure, and one end of the first sliding groove extends obliquely towards the direction close to the second valve flap.

[0012] Preferably, two second sliding grooves are provided, and the two second sliding grooves are oppositely arranged; two second pulleys are provided, and the second pulleys are correspondingly arranged in the second sliding grooves; the second connecting member includes a second connecting shaft and a second rotating shaft, one end of the second rotating shaft is connected to the second connecting shaft, the other end is connected to the second valve flap, and the two ends of the second connecting shaft are correspondingly connected to the second pulleys.

[0013] Preferably, one end of the second sliding groove extends to the end face of the control pipe; the second connecting member further includes a return spring and a support ring, the support ring is arranged on the valve body, the other end of the second rotating shaft penetrates through the second valve flap, and the second rotating shaft is fixed to the second valve flap, and the other end of the second rotating shaft slidably passes through the support ring; the return spring is sleeved on the second rotating shaft, one end of the return spring abuts against the second valve flap, and the other end abuts against the support ring.

[0014] Preferably, two second rotating shafts and two return springs are provided, and the two second rotating shafts are correspondingly connected to the two ends of the second connecting shaft; the return springs are correspondingly sleeved on the second rotating shafts.

[0015] Preferably, a rotating handle is further included, and the rotating handle is arranged on the outer wall of the control pipe.

[0016] Preferably, a positioning sleeve is further included, the positioning sleeve is inserted into the control pipe, and the first valve flap covers one end of the positioning sleeve; a third sliding groove for cooperating with the first pulley is formed in the side wall of the positioning sleeve.

[0017] Preferably, a positioning pulley is arranged on the inner side wall of the control pipe, and a positioning block for cooperating with the positioning pulley is arranged on the outer side wall of the positioning sleeve; the positioning pulley abuts against the positioning block.

[0018] The present invention has the following beneficial effects:

[0019] The dry joint of the present invention is structurally compact and stable. By means of the control pipe, the first valve flap and the second valve flap are simultaneously driven to move up and down, so that the opening and closing of the first closing member and the second closing member are linked. When the first closing member is closed, the second closing member is also closed simultaneously. When the first closing member is opened, the second closing member is synchronously opened through the control pipe. When loading and unloading materials, after the materials are loaded and unloaded, the first closing member is closed, and the second closing member is also closed simultaneously. When in the closed state, if there is a leakage in the first closing member, the second closing member can block the leakage of materials, ensuring a double safety insurance in case of accidental valve failures for combustible and explosive materials during transportation, and playing roles of safety, pollution reduction, and conservation.

[0020] The dry joint of the present invention not only reduces dripping, but also prevents losses caused by leakage, making the dry joint safer through the second closing member.

[0021] The second closing member and the first closing member of the present invention are integrally designed. The safety valve is opened and closed by the rotation of the control pipe, which is a mechanical opening and closing method. The first closing member and the second closing member are mechanically linked, avoiding the risks of independent or electrical opening and closing failures, and making it safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the dry joint provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic cross-sectional structural diagram of the dry joint provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic internal structural diagram of the dry joint provided by an embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the first closing member provided by an embodiment of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the second closing member provided by an embodiment of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the positioning sleeve provided by an embodiment of the present invention.

[0028] REFERENCE NUMERALS:

[0029] 1. Valve body; 2. Control pipe; 21. First slideway; 22. Second slideway; 3. First opening and closing member; 31. First pulley; 32. First connecting member; 321. First connecting shaft; 322. First rotating shaft; 33. First valve flap; 4. Second opening and closing member; 34. Positioning pulley; 41. Second pulley; 42. Second connecting member; 421. Second connecting shaft; 422. Second rotating shaft; 423. Return spring; 424. Support ring; 43. Second valve flap; 5. Positioning sleeve; 51. Positioning block; 6. Rotating handle. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0032] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0033] See Figures 1 to 3 , a preferred embodiment of the present invention provides a dry joint, including a valve body 1, a control pipe 2, a first opening and closing member 3, and a second opening and closing member 4;

[0034] One end of the control pipe 2 is inserted into the valve body 1; the pipe wall of the control pipe 2 is provided with a first slideway 21 and a second slideway 22;

[0035] The first opening and closing member 3 includes a first pulley 31, a first connecting member 32, and a first valve flap 33; the first pulley 31 is arranged on the first slideway 21; the first valve flap 33 covers one end of the control pipe 2 away from the valve body 1; the first connecting member 32 connects the first pulley 31 and the first valve flap 33 respectively;

[0036] The second opening and closing member 4 includes a second pulley 41, a second connecting member 42, and a second valve flap 43; the second pulley 41 is arranged on the second slideway 22; the second valve flap 43 covers one end of the valve body 1 away from the control pipe 2; the second connecting member 42 connects the second pulley 41 and the second valve flap 43 respectively;

[0037] When the control pipe 2 rotates along the inner wall of the valve body 1, the first pulley 31 slides on the first slideway 21, the first connecting member 32 drives the first valve flap 33 to lift or lower, the second pulley 41 slides on the second slideway 22, and the second connecting member 42 drives the second valve flap 43 to lift or lower.

[0038] During the use process of the above dry joint, connect one end of the control pipe 2 that is not inserted into the valve body 1 to an external pipeline. Connect the end of the valve body 1 away from the control pipe 2 to another external pipeline. Twist the control pipe 2 so that the control pipe 2 rotates around its own axis along the inner wall of the valve body 1. The first slideway 21 drives the first pulley 31 to move, and then the first connecting member 32 lifts the first valve flap 33, so that the first opening and closing member 3 is opened; at the same time, during the process of controlling the rotation, the second slideway 22 drives the second pulley 41 to move, and then the second connecting member 42 lifts the second valve flap 43, so that the second opening and closing member 4 is opened; conversely, twist the control pipe 2 back to its original position to close the first opening and closing member 3 and the second opening and closing member 4.

[0039] It should be noted that ball bearings and sealing rings are arranged between the control pipe 2 and the valve body 1 to facilitate the rotation of the control pipe 2 and ensure the sealing performance of their connection parts. Sealing rings are arranged at the connection between the first valve flap 33 and the control pipe 2, and sealing rings are also arranged at the connection between the second valve flap 43 and the valve body 1.

[0040] In some preferred embodiments of the present invention, the first slideway 21 has an inclined structure, and one end of the first slideway 21 extends obliquely towards the direction close to the first valve flap 33. In this way, when the control pipe 2 rotates, the first slideway 21 can directly abut against the first pulley 31, so that the first pulley 31 gradually rises, and then the first connecting member 32 gradually pushes open the first valve flap 33.

[0041] See Figure 4, in some preferred embodiments of the present invention, two first slideways 21 are provided, and the two first slideways 21 are arranged oppositely; two first pulleys 31 are provided, and the first pulleys 31 are arranged in one-to-one correspondence with the first slideways 21; the first connecting member 32 includes a first connecting shaft 321 and a first rotating shaft 322. One end of the first rotating shaft 322 is connected to the first connecting shaft 321, and the other end is connected to the first valve flap 33. The two ends of the first connecting shaft 321 are connected to the first pulleys 31 in one-to-one correspondence. In this way, by using two oppositely arranged first pulleys 31, the first valve flap 33 can be jacked up more stably, avoiding the inclination of the first valve flap 33.

[0042] In some preferred embodiments of the present invention, the second slideway 22 is of an inclined structure, and one end of the first slideway 21 extends obliquely towards the direction close to the second valve flap 43. In this way, when the control pipe 2 rotates, the second pulley 41 can be directly abutted by the second slideway 22, so that the second pulley 41 gradually rises, and further the second connecting member 42 gradually jacks up the second valve flap 43.

[0043] In some preferred embodiments of the present invention, two second slideways 22 are provided, and the two second slideways 22 are arranged oppositely; two second pulleys 41 are provided, and the second pulleys 41 are arranged in one-to-one correspondence with the second slideways 22; the second connecting member 42 includes a second connecting shaft 421 and a second rotating shaft 422. One end of the second rotating shaft 422 is connected to the second connecting shaft 421, and the other end is connected to the second valve flap 43. The two ends of the second connecting shaft 421 are connected to the second pulleys 41 in one-to-one correspondence. In this way, by using two oppositely arranged second pulleys 41, the second valve flap 43 can be jacked up more stably, avoiding the inclination of the second valve flap 43.

[0044] See Figure 5, in some preferred embodiments of the present invention, one end of the second slideway 22 extends to the end face of the control pipe 2; the second connecting member 42 further includes a return spring 423 and a support ring 424. The support ring 424 is arranged on the valve body 1. The other end of the second rotating shaft 422 penetrates through the second valve flap 43, and the second rotating shaft 422 is fixed to the second valve flap 43. The other end of the second rotating shaft 422 slides through the support ring 424; the return spring 423 is sleeved on the second rotating shaft 422. One end of the return spring 423 abuts against the second valve flap 43, and the other end abuts against the support ring 424. Thus, the support ring 424 is fixed on the valve body 1, the support ring 424 supports the return spring 423, the return spring 423 supports the second valve flap 43, and the second valve flap 43 supports the second rotating shaft 422. When the control pipe 2 rotates, the second slideway 22 presses the second pulley 41, the second pulley 41 drives the second rotating shaft 422 to move downward, the second rotating shaft 422 drives the second valve flap 43 to move downward, and presses the return spring 423, so that the second valve flap 43 is opened; when the control pipe 2 is rotated back to its original position, the second slideway stops pressing the second pulley 41, the return spring 423 pushes the second valve flap 43 to reset, the second valve flap 43 drives the second rotating shaft 422 to rise, the second rotating shaft 422 drives the second pulley 41 to rise, and the second valve flap 43 covers the control pipe 2 again, realizing the closing of the second closing member 4.

[0045] In some preferred embodiments of the present invention, there are two second rotating shafts 422 and two return springs 423, and the two second rotating shafts 422 are respectively connected to both ends of the second connecting shaft 421 in a one-to-one correspondence; the return springs 423 are respectively sleeved on the second rotating shafts 422. Specifically, the relatively arranged second rotating shafts 422 can make the second valve flap 43 more stable and reliable during the lifting process.

[0046] In some preferred embodiments of the present invention, it further includes a rotating handle 6, and the rotating handle 6 is arranged on the outer wall of the control pipe 2. Thus, the rotation of the control pipe 2 can be directly realized through the rotating handle 6, which is simple and fast.

[0047] Furthermore, there are two rotating handles 6, which is convenient for the operator to operate with both hands.

[0048] See Figure 6, in some preferred embodiments of the present invention, it further includes a positioning sleeve 5. The positioning sleeve 5 is inserted into the control pipe 2, and the first valve flap 33 covers one end of the positioning sleeve 5. A third slideway for cooperating with the first pulley 31 is provided on the side wall of the positioning sleeve 5. In this way, when the control pipe 2 rotates, the positioning pipe can position the first valve flap 33 and ensure the sealing performance when the first valve flap 33 covers. At the same time, when the control pipe 2 is connected to an external pipeline, the external pipeline can abut against the positioning sleeve 5, so that when the control pipe 2 rotates, the positioning sleeve 5 will not rotate, ensuring that the first valve flap 33 will not rotate. Thus, when the control pipe 2 rotates, the first valve flap 33 can be stably lifted, ensuring the reliability of the opening and closing of the first opening and closing member 3.

[0049] In some preferred embodiments of the present invention, a positioning pulley 34 is provided on the inner side wall of the control pipe 2, and a positioning block 51 for cooperating with the positioning pulley 34 is provided on the outer side wall of the positioning sleeve 5; the positioning pulley 34 abuts against the positioning block 51. In this way, the positioning pulley 34 can cooperate with the positioning block 51 to press the positioning sleeve 5 to prevent the positioning sleeve 5 from slipping out. At the same time, when the control pipe 2 rotates, the positioning pulley 34 can slide on the positioning block 51 to reduce the friction between each other and ensure the smooth rotation of the control pipe 2.

[0050] In summary, the preferred embodiment of the present invention provides a dry joint, which compared with the prior art:

[0051] The dry joint of the present invention has a compact and stable structure. By driving the first valve flap 33 and the second valve flap 43 to lift simultaneously through the control pipe 2, the opening and closing of the first opening and closing member 3 and the second opening and closing member 4 are linked. When the first opening and closing member 3 is closed, the second opening and closing member 4 is also closed at the same time. When the first opening and closing member 3 is opened through the control pipe 2, the second opening and closing member 4 is synchronously opened; when loading and unloading materials, after loading and unloading the materials, the first opening and closing member 3 is closed, and the second opening and closing member 4 is also closed at the same time. When in the closed state, if there is a leakage in the first opening and closing member 3, the second opening and closing member 4 can block the leakage of materials, ensuring a safety double insurance function for materials in case of accidental valve failures. It is a double insurance for the transportation of combustible and explosive materials, playing a role in ensuring safety, reducing pollution, and saving.

[0052] The dry joint of the present invention not only reduces dripping, but also prevents losses caused by leakage, making the dry joint safer through the second opening and closing member 4.

[0053] The second opening and closing member 4 and the first opening and closing member 3 of the present invention are integrally designed, and the safety valve is opened and closed by relying on the rotation of the control pipe 2. It is a mechanical opening and closing. The first opening and closing member 3 and the second opening and closing member 4 are mechanically linked, avoiding the risk of independent or electrical opening and closing failures, making it safer and more reliable.

[0054] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A dry joint, characterized in that, Comprising: Valve body (1); Control pipe (2), one end of the control pipe (2) is inserted into the valve body (1); a first slideway (21) and a second slideway (22) are arranged on the pipe wall of the control pipe (2); First opening and closing member (3), the first opening and closing member (3) includes a first pulley (31), a first connecting member (32) and a first valve flap (33); the first pulley (31) is arranged on the first slideway (21); the first valve flap (33) covers one end of the control pipe (2) away from the valve body (1); the first connecting member (32) connects the first pulley (31) and the first valve flap (33) respectively; Second opening and closing member (4), the second opening and closing member (4) includes a second pulley (41), a second connecting member (42) and a second valve flap (43); the second pulley (41) is arranged on the second slideway (22); the second valve flap (43) covers one end of the valve body (1) away from the control pipe (2); the second connecting member (42) connects the second pulley (41) and the second valve flap (43) respectively; When the control pipe (2) rotates along the inner wall of the valve body (1), the first pulley (31) slides on the first slideway (21), the first connecting member (32) drives the first valve flap (33) to lift and lower, the second pulley (41) slides on the second slideway (22), and the second connecting member (42) drives the second valve flap (43) to lift and lower; The first slideway (21) is of an inclined structure, and one end of the first slideway (21) extends obliquely towards the direction close to the first valve flap (33); The second slideway (22) is of an inclined structure, and one end of the first slideway (21) extends obliquely towards the direction close to the second valve flap (43).

2. The dry joint according to claim 1, characterized in that Two first slideways (21) are arranged, and the two first slideways (21) are arranged oppositely; two first pulleys (31) are arranged, and the first pulleys (31) are arranged on the first slideways (21) in one-to-one correspondence; the first connecting member (32) includes a first connecting shaft (321) and a first rotating shaft (322), one end of the first rotating shaft (322) connects the first connecting shaft (321), the other end connects the first valve flap (33), and the two ends of the first connecting shaft (321) are connected to the first pulleys (31) in one-to-one correspondence.

3. The dry joint according to claim 1, characterized in that Two second slideways (22) are arranged, and the two second slideways (22) are arranged oppositely; two second pulleys (41) are arranged, and the second pulleys (41) are arranged on the second slideways (22) in one-to-one correspondence; the second connecting member (42) includes a second connecting shaft (421) and a second rotating shaft (422), one end of the second rotating shaft (422) connects the second connecting shaft (421), the other end connects the second valve flap (43), and the two ends of the second connecting shaft (421) are connected to the second pulleys (41) in one-to-one correspondence.

4. The dry joint according to claim 3, characterized in that : One end of the second slideway (22) extends to the end face of the control pipe (2); the second connecting member (42) further includes a return spring (423) and a support ring (424). The support ring (424) is arranged on the valve body (1). The other end of the second rotating shaft (422) penetrates through the second valve flap (43), and the second rotating shaft (422) is fixed to the second valve flap (43). The other end of the second rotating shaft (422) slides through the support ring (424); the return spring (423) is sleeved on the second rotating shaft (422), one end of the return spring (423) abuts against the second valve flap (43), and the other end abuts against the support ring (424).

5. The dry joint according to claim 4, characterized in that : There are two second rotating shafts (422) and two return springs (423). The two second rotating shafts (422) are respectively connected to both ends of the second connecting shaft (421); the return springs (423) are respectively sleeved on the second rotating shafts (422).

6. The dry joint according to claim 1, characterized in that : It further includes a rotating handle (6), and the rotating handle (6) is arranged on the outer wall of the control pipe (2).

7. The dry joint according to any one of claims 1 - 6, characterized in that : It further includes a positioning sleeve (5). The positioning sleeve (5) is inserted into the control pipe (2), and the first valve flap (33) covers one end of the positioning sleeve (5); a third slideway for cooperating with the first pulley (31) is provided on the side wall of the positioning sleeve (5).

8. The dry joint according to claim 7, characterized in that : A positioning pulley (34) is arranged on the inner side wall of the control pipe (2), and a positioning block (51) for cooperating with the positioning pulley (34) is arranged on the outer side wall of the positioning sleeve (5); the positioning pulley (34) abuts against the positioning block (51).

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