A waterproof sealing joint and cable

Abstract

The present invention relates to the technical field of medical devices, and discloses a waterproof sealing joint and a cable. The waterproof sealing joint includes a joint body, which is connected to the distal end of the cable; a movable part, which is sleeved on the distal end of the joint body and can move along the axial direction of the joint body; an extrusion portion extends inward from the distal end of the movable part; an installation space is formed between the extrusion portion and the distal end of the joint body; a sealing ring, which is arranged in the installation space; a rotating part, which is sleeved on the joint body and can rotate along the circumference of the joint body; the inner wall of the rotating part has one of a spiral part or a protrusion, and the outer wall of the movable part has the other, and the protrusion is embedded in the spiral part. The above-mentioned waterproof sealing joint is provided at the distal end of the cable. Through the above-mentioned scheme, the present invention can solve the technical problem in the related technology that the waterproof cap is easily contaminated when exposed to the surgical environment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a waterproof sealing joint and a cable. Background Art

[0002] In a reusable endoscope, a waterproof cap is usually provided on the connector body to ensure sealing performance during disinfection and prevent the cable from coming into direct contact with the disinfectant. When the connector needs to be inserted into the host, the waterproof cap must be unscrewed first and then screwed back on after use.

[0003] During the operation, the waterproof cap is exposed to the operating environment and is more likely to be contaminated. After the waterproof cap is screwed back on, the contaminated waterproof cap is likely to cause cable contamination.

[0004] Therefore, providing a waterproof sealing joint that will not be contaminated during surgery is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The invention discloses a waterproof sealing joint and a cable, so as to solve the technical problem in the related art that a waterproof cap is easily contaminated when exposed in an operating environment.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] In a first aspect, a waterproof sealing joint is disclosed, comprising:

[0008] A connector body connected to the far end of the cable;

[0009] The movable part is sleeved on the distal end of the joint body and can move along the axial direction of the joint body; the distal end of the movable part is provided with an extrusion part extending inwardly; an installation space is formed between the extrusion part and the distal end of the joint body;

[0010] A sealing ring is arranged in the installation space;

[0011] The rotating member is sleeved on the joint body and can rotate along the circumference of the joint body;

[0012] The inner wall of the rotating part has one of a spiral part or a protrusion, and the outer wall of the movable part has the other, and the protrusion is embedded in the spiral part; when the rotating part rotates, the protrusion moves along the spiral part, so that the movable part moves along the axial direction of the joint body; in the process of the movable part moving toward the joint body, the extrusion part squeezes the sealing ring, and the sealing ring gradually closes; in the process of the movable part moving away from the joint body, the sealing ring is restored and gradually opened.

[0013] In some solutions, a connecting piece is also included, which is sleeved on the joint body and rotatably connected to the rotating piece.

[0014] In some embodiments, the spiral portion is an internal thread, the protruding portion is an external thread, and the external thread is cooperatively connected with the internal thread.

[0015] In some embodiments, the spiral portion is a spiral groove, and the protruding portion is a protrusion. The protrusion is embedded in the spiral groove and can move along the spiral groove.

[0016] In some solutions, the outer wall of the rotating member has an anti-slip portion.

[0017] In some solutions, a clamping portion is provided on the outer wall of the rotating member, and when the connector body is connected to the host socket, the clamping portion abuts against the inner wall of the host socket.

[0018] In some solutions, when the clamping portion abuts against the inner wall of the host socket, the rotating member can rotate relative to the host socket.

[0019] In some embodiments, the spiral portion is disposed on the inner wall of the rotating member, and the protruding portion is disposed on the outer wall of the movable member;

[0020] The inner wall at the distal end of the rotating member also has an abutment portion, which abuts against the outer wall of the movable member;

[0021] When the movable part moves until the sealing ring is fully opened, the abutting portion and the protruding portion stop abutting against each other.

[0022] In some embodiments, the outer wall of the joint body is provided with one of a limiting groove or a limiting block, and the inner wall of the movable part is provided with the other;

[0023] The limiting groove extends along the axial direction of the joint body, and the limiting block is embedded in the limiting groove and can move along the limiting groove.

[0024] In a second aspect, a cable is disclosed, wherein the distal end of the cable is provided with the waterproof sealing joint in the first aspect.

[0025] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0026] The waterproof sealing joint of the present application is in a closed state under normal conditions to isolate the joint body from the external environment. Before inserting the waterproof sealing joint into the host socket, the operator rotates the rotating part, and the movable part moves away from the joint body. During this process, the sealing ring is restored and gradually opens, so that the joint body can be connected to the host socket. After the operation, the operator pulls the waterproof sealing joint out of the host socket, and then rotates the rotating part in the opposite direction, and the movable part moves toward the joint body. During this process, the extrusion part squeezes the sealing ring, so that the sealing ring is squeezed and deformed, and gradually closes. During the operation, the movable part and the sealing ring that waterproof seal the joint body are always located in the host socket, and will not be exposed to the surgical environment, thereby avoiding contamination. After the operation, when the joint body is waterproof sealed, it will not cause contamination of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is an axial view of the waterproof sealing joint of the present invention;

[0029] Figure 2 It is a schematic diagram of the connection between the waterproof sealing joint of the present invention and the host;

[0030] Figure 3 is a cross-sectional view of the connection between the waterproof sealing joint of the present invention and the host;

[0031] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0032] Figure 5 It is a cross-sectional view of the waterproof sealing joint of the present invention Figure 1 ;

[0033] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0034] Figure 7 It is a cross-sectional view of the waterproof sealing joint of the present invention Figure 2 ;

[0035] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0036] Fig. 9 It is a cross-sectional view of the waterproof sealing joint of the present invention Figure 3 ;

[0037] Fig.10 yes Fig. 9 Enlarged view of point D in the middle.

[0038] In the figure:

[0039] 100-waterproof sealing joint, 110-joint body, 111-outer edge, 120-sealing ring, 121-channel, 130-movable part, 131-external thread, 132-protrusion, 133-extrusion part, 140-rotating part, 141-anti-slip part, 142-clamping part, 143-internal thread, 144-spiral groove, 145-first bending part, 146-abutting part, 150-connecting part, 151-second bending part;

[0040] 200-cable;

[0041] 300-host, 310-socket, 311-information transmission component, 320-connecting part. DETAILED DESCRIPTION

[0042] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0045] The applicant discovered during the use of the reusable endoscope that in order to meet the sealing performance during disinfection and prevent the cable 200 from directly contacting the disinfectant, a waterproof cap is usually provided at the connector body 110. When the connector needs to be inserted into the host 300, the waterproof cap must be unscrewed first and then screwed back on after use. During the operation, the waterproof cap is exposed to the operating environment throughout the operation and is more likely to be contaminated. After the waterproof cap is screwed back on, the contaminated waterproof cap is likely to cause contamination of the cable 200.

[0046] The following is combined with Figures 1 to 10 , a waterproof sealing joint 100 and a cable 200 provided in the present application are described in detail through specific embodiments and their application scenarios.

[0047] Some embodiments of the present application provide a waterproof sealing joint 100, such as Figure 1 and Figure 3 As shown, the joint body 110 , a movable part 130 , a sealing ring 120 , a connecting part 150 and a rotating part 140 are included.

[0048] like Figure 1 and Figure 2 As shown, the connector body 110 is connected to the distal end of the cable 200. The connector body 110 is a main component for connecting to the information transmission component 311 of the socket 310 of the host 300. When the connector body 110 is used for an endoscope, when the connector body 110 is inserted into the socket 310 of the host 300 and connected to the information transmission component 311, the image and data captured by the endoscope can be transmitted to the host 300 in real time through the cable 200 for processing and display.

[0049] like Figure 1 , Figure 6 , Figure 8 and Fig.10 As shown, the movable part 130 is sleeved on the distal end of the joint body 110 and can move axially along the joint body 110. An extrusion portion 133 extends inward from the distal end of the movable part 130. An installation space is formed between the extrusion portion 133 and the distal end of the joint body 110, and the sealing ring 120 is arranged in the installation space.

[0050] When the sealing ring 120 is not compressed, the middle part of the sealing ring 120 has a channel 121 that penetrates along its own axial direction, and the diameter of the channel 121 is larger than the size of the information transmission component 311, so that the information transmission component 311 can pass through the sealing ring 120 to communicate with the connector body 110, and then the connector body 110 can be smoothly connected to the socket 310 of the host 300.

[0051] When the movable part 130 moves toward the connector body 110, the extrusion part 133 gradually squeezes the sealing ring 120. During the compression of the sealing ring 120, since the outer dimensions of the sealing ring 120 are limited by the movable part 130, the sealing ring 120 will deform radially inward and gradually close the middle channel 121. When the movable part 130 moves toward the connector body 110 to the dead point, the sealing ring 120 is completely compressed and the channel 121 is completely closed, thereby isolating the cable 200 from the external environment.

[0052] When the movable part 130 moves away from the connector body 110, the sealing ring 120 recovers its shape, and the channel 121 of the sealing ring 120 deforms radially toward the outer shape, and gradually opens the middle channel 121. When the movable part 130 moves away from the connector body 110 to the dead point, the sealing ring 120 recovers its shape, and the channel 121 is fully opened, so that the connector body 110 can be connected to the socket 310 of the host 300.

[0053] It should be noted that the extrusion portion 133 is a stepped flange disposed at the distal end of the movable member 130, and its purpose is to cooperate with the end face at the distal end of the connector body 110 to clamp the sealing ring 120 together and prevent the sealing ring 120 from falling off. However, since the extrusion portion 133 is located at the distal end of the connector body 110, in order to allow the connector body 110 to be smoothly inserted into the socket 310 of the host 300, the diameter of the extrusion portion 133 is set to be larger than the size of the information transmission component 311, so that the information transmission component 311 can pass through the extrusion portion 133 to connect with the connector body 110, thereby avoiding interference between the connector body 110 and the socket 310 of the host 300.

[0054] like Figure 1 , Figure 6 , Figure 8 and Fig.10 As shown, the rotating member 140 is sleeved on the joint body 110 and can rotate along the circumference of the joint body 110. After the rotating member 140 is sleeved on the joint body 110, there is a gap between the inner wall of the rotating member 140 and the outer wall of the joint body 110, and the proximal end of the movable member 130 extends into the gap, completing the matching installation of the movable member 130, the joint body 110 and the rotating member 140.

[0055] In this embodiment, the outer wall of the joint body 110 is provided with an outer edge 111, the diameter of the outer edge 111 is larger than the diameter of the joint body 110, and the inner wall of the rotating member 140 cooperates with the outer wall of the outer edge 111, so that the rotating member 140 can rotate circumferentially along the joint body 110.

[0056] The outer edge 111 also limits the movement of the movable member 130. When the movable member 130 moves to a certain distance toward the joint body 110, the proximal end of the movable member 130 stops against the outer edge 111. The outer edge 111 limits the maximum travel of the movable member 130 toward the joint body 110, prevents the sealing ring 120 from being over-compressed, and protects the sealing ring 120.

[0057] like Figure 1 , Figure 3 and Figure 5-Figure 10 As shown, the connecting member 150 is sleeved on the joint body 110 and is rotatably connected to the rotating member 140. The connecting member 150 is fixedly connected to the joint body 110, and plays an axial limit role on the rotating member 140, so that the rotating member 140 can only rotate in the circumferential direction but cannot move in the axial direction, thereby increasing the stability of the structure.

[0058] Specifically, Figure 6 , Figure 8 and Fig.10 As shown, the proximal end of the rotating member 140 has a first bending portion 145, and the distal end of the connecting member 150 has a second bending portion 151. The first bending portion 145 and the proximal end of the rotating member 140 form a first clamping space, and the second bending portion 151 and the distal end of the connecting member 150 form a second clamping space. The end of the first bending portion 145 extends into the second clamping space, and the end of the second bending portion 151 extends into the first clamping space, thereby completing the rotational connection between the rotating member 140 and the connecting member 150, and limiting the axial direction of the rotating member 140, thereby increasing the stability of the structure.

[0059] As a matter of course, the projections of the first bending portion 145 and the second bending portion 151 along the axial direction of the rotating member 140 are both circular, so that the first bending portion 145 and the second bending portion 151 can rotate relative to each other.

[0060] It should be noted that the distal end of the cable 200 passes through the connector 150 and is connected to the connector body 110 , and the connector 150 also protects a portion of the cable 200 .

[0061] like Figure 6 , Figure 8 and Fig.10 As shown, the inner wall of the rotating member 140 has one of a spiral portion or a protrusion, and the outer wall of the movable member 130 has the other, and the protrusion is embedded in the spiral portion.

[0062] When the operator uses the waterproof sealing connector 100 to connect with the socket 310 of the host 300, the operator twists the rotating member 140. Under the cooperation of the spiral part and the protrusion, the movable member 130 moves away from the connector body 110 along its own axial direction, and the sealing ring 120 is released to open the channel 121. After the operation, the operator twists the rotating member 140 in the opposite direction. Under the cooperation of the spiral part and the protrusion, the movable member 130 moves toward the connector body 110 along its own axial direction, and the sealing ring 120 is squeezed to close the channel 121.

[0063] It should be noted that the movable member 130 and the sealing ring 120 that seal the cable 200 are both in the socket 310 of the host 300 during the operation and will not be exposed to the operation environment, thereby avoiding contamination.

[0064] As a matter of course, the projections of the joint body 110 , the movable part 130 , and the rotating part 140 along the axial direction are all circular, so that the spiral portion and the protrusion can convert the circular motion of the rotating part 140 into the linear motion of the movable part 130 .

[0065] In some embodiments, the spiral portion is disposed on the inner wall of the rotating member 140 , and the protruding portion is disposed on the outer wall of the movable member 130 .

[0066] In some embodiments, the spiral portion is disposed on the outer wall of the movable member 130 , and the protrusion is disposed on the inner wall of the rotating member 140 .

[0067] Among them, this embodiment preferably has the spiral portion disposed on the inner wall of the rotating member 140 and the protrusion disposed on the outer wall of the movable member 130. In this embodiment, if Figure 6 , Figure 8 and Fig.10 As shown, the inner wall of the distal end of the rotating member 140 also has an abutment portion 146, and the inner diameter of the abutment portion 146 is the same as the outer diameter of the movable member 130. When the rotating member 140 is installed on the movable member 130, the abutment portion 146 abuts against the outer wall of the movable member 130, and the friction force is used to increase the sealing between the rotating member 140 and the movable member 130, which can effectively prevent pollutants from entering the matching gap between the spiral portion and the protrusion. The matching gap between the spiral portion and the protrusion is difficult to clean and disinfect, and the abutment portion 146 abuts against the outer wall of the movable member 130, which prevents pollutants from entering the matching gap from the source.

[0068] It should be noted that the proximal end of the rotating member 140 has an opening, and the diameter of the opening is greater than or equal to the size of the protrusion, so that the distal end of the movable member 130 enters the rotating member 140 from the opening and is connected with the rotating member 140.

[0069] In addition, Figure 6 , Figure 8and Fig.10 As shown, the distance between the end of the protrusion and the axial direction of the joint body 110 is greater than the distance between the abutment portion 146 and the axial direction of the joint body 110. When the movable member 130 moves until the sealing ring 120 is fully opened, the abutment portion 146 abuts against the protrusion, thereby limiting the maximum travel of the movable member 130 and preventing the movable member 130 from falling off the joint body 110.

[0070] In some embodiments, the spiral portion is an internal thread 143, the protrusion is an external thread 131, and the external thread 131 is connected with the internal thread 143. When the rotating member 140 rotates, the circumferential motion of the rotating member 140 is converted into the linear motion of the movable member 130 through the cooperation of the external thread 131 and the internal thread 143, thereby causing the movable member 130 to move toward or away from the joint body 110.

[0071] In some embodiments, the spiral portion is a spiral groove 144, the protrusion is a protrusion 132, and the protrusion 132 is embedded in the spiral groove 144 and can move along the spiral groove 144. When the rotating member 140 rotates, the circumferential motion of the rotating member 140 is converted into the linear motion of the movable member 130 through the cooperation between the protrusion 132 and the rotating portion, thereby causing the movable member 130 to move toward or away from the joint body 110.

[0072] Among them, this embodiment preferably has the spiral portion as an internal thread 143 and the protruding portion as an external thread 131. Compared with the matching mode of the protrusion 132 and the spiral groove 144, the matching mode of the internal thread 143 and the external thread 131 has the advantages of lower processing cost and easier assembly.

[0073] In this embodiment, the internal thread 143 is disposed on the inner wall of the rotating member 140 , and the external thread 131 is disposed on the outer wall of the movable member 130 .

[0074] like Figure 1 As shown, the outer wall of the rotating member 140 has an anti-skid portion 141. The anti-skid portion 141 can increase the friction between the operator and the rotating member 140, and improve the stability of rotating the rotating member 140.

[0075] In this embodiment, the anti-slip portion 141 is preferably a plurality of engraved lines arranged in an array on the outer wall of the rotating member 140 along the circumferential direction of the rotating member 140 .

[0076] like Figure 3 and Figure 4As shown, the outer wall of the rotating member 140 is provided with a clamping portion 142. When the connector body 110 is connected to the socket 310 of the host 300, the clamping portion 142 abuts against the inner wall of the socket 310 of the host 300. By providing the clamping portion 142, after the connector body 110 is inserted into the socket 310 of the host 300 and connected with the socket 310 of the host 300, the clamping portion 142 can ensure that the connector body 110 is stably connected to the socket 310 of the host 300 and is not easy to fall off.

[0077] Among them, anti-foolproof marks can be set on the movable part 130 and the main unit 300. When the connector body 110 is inserted into the socket 310 of the main unit 300, the anti-foolproof mark of the movable part 130 and the anti-foolproof mark of the main unit 300 are aligned, so that the connection between the connector body 110 and the socket 310 of the main unit 300 can be easily completed, thereby increasing the convenience of inserting the connector body 110 into the socket 310 of the main unit 300.

[0078] In this embodiment, the inner wall of the socket 310 of the host 300 is provided with a connecting portion 320 that cooperates with the clamping portion 142. When the connector body 110 is connected to the information transmission component 311 of the socket 310 of the host 300, the clamping portion 142 and the connecting portion 320 are limited and cooperated to prevent the waterproof sealing connector 100 from being inserted too deeply, thereby protecting the information transmission component 311 in the socket 310 of the host 300.

[0079] like Figure 4 As shown, when the clamping portion 142 stops against the inner wall of the socket 310 of the host 300, the rotating member 140 can rotate relative to the socket 310 of the host 300. In the process of inserting the connector body 110 into the socket 310 of the host 300, since the rotating member 140 can rotate relative to the socket 310 of the host 300, the operator can first insert the distal end of the rotating member 140 into the socket 310 of the host 300, at which time the information transmission component 311 of the socket 310 of the host 300 is not in contact with the connector body 110, and the operator then rotates the rotating member 140 to move the movable member 130 away from the connector body 110 and gradually open the sealing ring 120. After the sealing ring 120 is fully opened, the operator inserts the rotating member 140 into the socket 310 of the host 300, thereby connecting the connector body 110 with the information transmission component 311 of the socket 310 of the host 300. During the process of opening the sealing ring 120 , the sealing ring 120 and the movable part 130 are both located inside the socket 310 of the host 300 , thereby preventing the cable 200 from being exposed to the surgical environment and further preventing the cable 200 from being contaminated.

[0080] Similarly, after the operation is over, the operator can first partially pull the rotating member 140 out of the socket 310 of the host 300, so that the information transmission component 311 of the socket 310 of the host 300 is separated from the connector body 110. At this time, the clamping portion 142 is still abutted against the inner wall of the socket 310 of the host 300. The operator rotates the rotating member 140 to move the movable member 130 toward the connector body 110 and gradually close the sealing ring 120. After the sealing ring 120 is completely closed, the operator completely pulls the rotating member 140 out of the socket 310 of the host 300. During the closing process of the sealing ring 120, the sealing ring 120 and the movable member 130 are both located inside the socket 310 of the host 300, thereby preventing the cable 200 from being exposed to the surgical environment and further preventing the cable 200 from being contaminated.

[0081] The outer wall of the joint body 110 is provided with one of a limiting groove or a limiting block, and the inner wall of the movable part 130 is provided with the other. The limiting groove extends along the axial direction of the joint body 110, and the limiting block is embedded in the limiting groove and can move along the limiting groove. The limiting groove guides the limiting block, thereby making the movable part 130 move smoothly on the joint body 110. In addition, the limiting groove also plays a role of circumferential limiting on the limiting groove, preventing the movable part 130 from rotating relative to the joint body 110, so that the movable part 130 can only move along the axial direction of the joint body 110.

[0082] In some embodiments, a limiting groove is disposed on the outer wall of the joint body 110 , and a limiting block is disposed on the inner wall of the movable member 130 .

[0083] In some embodiments, a limiting block is disposed on the outer wall of the joint body 110 , and a limiting groove is disposed on the inner wall of the movable member 130 .

[0084] The cable 200 provided in some embodiments of the present application is as follows: Figure 1 and Figure 2 As shown, the distal end of the cable 200 is provided with the above-mentioned waterproof sealing joint 100 .

[0085] When the cable 200 is used for an endoscope, the proximal end of the cable 200 is connected to the endoscope, and the images and data detected by the endoscope can be transmitted to the host 300 through the cable 200 for processing, and the images are displayed on the host 300.

[0086] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0087] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0088] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof sealing joint, characterized in that: include: A connector body connected to the far end of the cable; A movable member is sleeved on the distal end of the joint body and can move along the axial direction of the joint body; an extrusion portion extends inwardly from the distal end of the movable member; and an installation space is formed between the extrusion portion and the distal end of the joint body; A sealing ring, arranged in the installation space; A rotating member, which is sleeved on the joint body and can rotate along the circumference of the joint body; The inner wall of the rotating part has one of a spiral portion or a protrusion, and the outer wall of the movable part has the other, and the protrusion is embedded in the spiral portion; when the rotating part rotates, the protrusion moves along the spiral portion, so that the movable part moves along the axial direction of the joint body; in the process of the movable part moving toward the joint body, the extrusion portion squeezes the sealing ring, and the sealing ring deforms radially outward and gradually opens the channel that penetrates the middle part of the sealing ring along its own axial direction; in the process of the movable part moving away from the joint body, the sealing ring will deform radially inward and gradually close the channel that penetrates the middle part of the sealing ring along its own axial direction.

2. A waterproof sealing joint according to claim 1, characterized in that: It also includes a connecting piece, which is sleeved on the joint body and rotatably connected to the rotating piece.

3. A waterproof sealing joint according to claim 1, characterized in that: The spiral portion is an internal thread, the protruding portion is an external thread, and the external thread is matched and connected with the internal thread.

4. A waterproof sealing joint according to claim 1, characterized in that: The spiral portion is a spiral groove, the protruding portion is a bulge, and the bulge is embedded in the spiral groove and can move along the spiral groove.

5. A waterproof sealing joint according to claim 1, characterized in that: The outer wall of the rotating member has an anti-slip portion.

6. A waterproof sealing joint according to claim 1 or 5, characterized in that: The outer wall of the rotating member is provided with a clamping portion, and when the joint body is connected to the host socket, the clamping portion abuts against the inner wall of the host socket.

7. A waterproof sealing joint according to claim 6, characterized in that: When the clamping portion abuts against the inner wall of the host socket, the rotating member can rotate relative to the host socket.

8. A waterproof sealing joint according to claim 3 or 4, characterized in that: The spiral portion is arranged on the inner wall of the rotating member, and the protruding portion is arranged on the outer wall of the movable member; The inner wall at the distal end of the rotating member further has an abutment portion, and the abutment portion abuts against the outer wall of the movable member; When the movable member moves until the sealing ring is fully opened, the abutting portion abuts against the protruding portion.

9. A waterproof sealing joint according to claim 1, characterized in that: The outer wall of the joint body is provided with one of a limiting groove or a limiting block, and the inner wall of the movable part is provided with the other; The limiting groove extends along the axial direction of the joint body, and the limiting block is embedded in the limiting groove and can move along the limiting groove.

10. A cable, characterized in that: The distal end of the cable is provided with a waterproof sealing joint as described in any one of claims 1-9.

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