Watertight connector

Abstract

The utility model discloses a watertight connector, which relates to the technical field of watertight connectors, and comprises a shell, a stop ring is sleeved on the shell, a locking piece is in threaded connection with the shell, a sliding groove is formed in the shell, connecting holes are formed in two side walls of the sliding groove, a sliding block matched with the sliding groove is fixedly arranged on an inner ring of the stop ring, and the sliding block is in threaded connection with the locking piece. A sliding block is arranged in the shell, connecting columns are symmetrically arranged in the sliding block in a sliding mode, a first spring is fixedly connected between the two connecting columns, a plurality of convex grooves are formed in the interior of the stop ring in an annular array mode, and third springs are fixedly connected to the groove walls of the convex grooves. According to the technical scheme, the problems that the rotation stopping part is bent and then clamped in the second groove, and the rotation stopping part is likely to be separated from the second groove when being collided by external force are solved in the prior art when the rotation stopping part is bent and then is clamped in the second groove, and the rotation stopping part is likely to be separated from the second groove when being collided by the external force.

Description

Technical Field

[0001] The utility model relates to the technical field of watertight connectors, in particular to a watertight connector. Background Art

[0002] Watertight connectors are widely used in underwater instrument and equipment systems, underwater communication systems, sonar systems, underwater robot systems, etc., providing stable and reliable power transmission, signal acquisition and good water sealing performance for deep-sea general equipment such as submersibles and underwater robots. Most underwater equipment is extremely precious, so there are high requirements for the performance and sealing performance of watertight connectors.

[0003] The Chinese utility model with publication number CN217036148U proposes a watertight connector: when installing the stop ring, the protrusion of the inner ring of the stop ring is matched with the first groove of the first external thread section of the shell, and then the stop ring is pushed inward to make the stop ring fit with the watertight compartment panel, and then the locking piece is screwed in so that the locking piece is gradually screwed into the first external thread section in a threaded connection manner. When the locking piece fits with the stop ring, the locking piece is twisted with force so that the locking piece firmly fixes the stop ring and the shell. After the locking piece can no longer be twisted, the stop part of the outer ring of the stop ring is bent so that the stop part is clamped in the second groove on the outer surface of the locking piece, so that the stop part of the stop ring can be used to limit the rotation of the locking piece, thereby preventing the locking piece from back-twisting.

[0004] However, the existing technology still has shortcomings:

[0005] 1. Since the retaining ring is sleeved on the housing, the retaining ring may slip, and the retaining ring will drive the anti-rotation part to leave the second groove, thereby failing to play a limiting role.

[0006] 2. The anti-rotation part is bent and clamped into the second groove. The anti-rotation part may be separated from the second groove when it is hit by external force. Utility Model Content

[0007] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a watertight connector, which solves the problem that the stop ring may slide because the stop ring is sleeved on the shell, and the stop ring will drive the anti-rotation part to disengage from the second groove, thereby failing to play a limiting role, and the anti-rotation part may disengage from the second groove when it is hit by external force after being bent and clamped in the second groove.

[0008] To achieve the above-mentioned purpose, the utility model proposes a watertight connector, comprising: a shell, a stop ring is sleeved on the shell, a locking piece is threadedly connected to the shell, a slide groove is opened on the shell, and connecting holes are opened on both side walls of the slide groove, the inner ring of the stop ring is fixedly provided with a slider adapted to the slide groove, the interior of the slider is symmetrically slidably provided with connecting columns, a first spring is fixedly connected between the two connecting columns, a plurality of convex grooves are opened in a circular array inside the stop ring, a third spring is fixedly connected to the groove wall of the convex groove, a fixed column is slidably connected to the interior of the convex groove, one end of the fixed column is fixedly connected to the third spring, and a first connecting groove is opened inside the locking piece.

[0009] As a further solution of the utility model: a boss is fixedly sleeved in the middle of the shell, a watertight compartment panel is installed on the outside of the shell, the watertight compartment panel is installed between the boss and the retaining ring, a mounting hole is opened in the middle of the watertight compartment panel, and the shell passes through the mounting hole.

[0010] As a further solution of the utility model: the shell is a hollow cylinder, both ends of the shell are open, a threaded portion is provided on the outer ring of the shell near one end, and a slide groove is provided on the surface of the threaded portion of the shell along its axial direction.

[0011] As a further solution of the utility model: the connecting column is adapted to the connecting hole.

[0012] As a further solution of the utility model: the convex groove is connected to the outside, the other end of the fixed column can extend to the outside of the convex groove, the outer side of the fixed column is fixedly connected with a pull rod, the pull rod passes through the convex groove and extends to the outside of the convex groove.

[0013] As a further solution of the utility model: the inner wall of the locking member is provided with an internal thread matched with the threaded portion, and the first connecting groove is matched with the fixing column.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Align the slider with the slide groove, press the two connecting columns, and move the two connecting columns closer to each other, so that the two connecting columns completely enter the interior of the slider pair, and the first spring is compressed; move the slider along the slide groove until the stop ring fits the side of the watertight compartment bulkhead, and the connecting column is embedded into the connecting hole under the action of the first spring rebound force, so that the stop ring is fixed and will not slide.

[0016] 2. Pull the pull rod, which drives the fixed column to slide into the convex groove, and then screw in the locking piece so that the locking piece is gradually screwed into the threaded part in a threaded connection manner. Loosen the pull rod, and the fixed column is driven into the first connecting groove under the action of the third spring rebound force. The fixed column will not be separated from the locking piece after being hit by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the housing of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the retaining ring of the utility model;

[0020] Figure 4 It is a front cross-sectional view of the retaining ring of the utility model;

[0021] Figure 5 This is an enlarged view of part A of the utility model;

[0022] Figure 6 It is a side sectional view of the retaining ring of the utility model;

[0023] Figure 7 It is a side sectional view of the locking member of the utility model.

[0024] In the figure: 1, shell; 101, threaded portion; 102, slide groove; 103, connecting hole; 2, locking member; 201, first connecting groove; 3, retaining ring; 301, convex groove; 302, third spring; 4, watertight compartment panel; 5, boss; 6, slider; 61, connecting column; 62, first spring; 7, fixing column; 71, pull rod. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-7 As shown, a watertight connector comprises: a housing 1, a retaining ring 3 is sleeved on the housing 1, a locking member 2 is threadedly connected to the housing 1, and a boss 5 is fixedly sleeved in the middle of the housing 1.

[0027] A watertight compartment panel 4 is installed on the outer side of the shell 1. The watertight compartment panel 4 is installed between the boss 5 and the retaining ring 3. A mounting hole is opened in the middle of the watertight compartment panel 4, and the shell 1 passes through the mounting hole.

[0028] The shell 1 is a hollow cylinder with both ends open. A threaded portion 101 is provided on the outer ring of the shell 1 near one end. A slide groove 102 is provided on the surface of the threaded portion 101 along its axial direction, and connecting holes 103 are provided on both side walls of the slide groove 102.

[0029] When the watertight connector needs to be assembled with the watertight compartment, the shell 1 is first inserted into the mounting hole of the watertight compartment panel 4 from the outside of the watertight compartment, one side of the boss 5 will be in contact with the outside of the watertight compartment panel 4, and then the retaining ring 3 and the locking member 2 are installed in sequence.

[0030] The inner ring of the retaining ring 3 is fixedly provided with a slider 6 adapted to the slide groove 102 , and the interior of the slider 6 is symmetrically slidably provided with connecting columns 61 , which are adapted to the connecting holes 103 , and a first spring 62 is fixedly connected between the two connecting columns 61 .

[0031] The installation method of the retaining ring 3 is as follows: align the slider 6 with the slide groove 102, press the two connecting columns 61, and the two connecting columns 61 are close to each other, so that the two connecting columns 61 completely enter the interior of the slider 6, and the first spring 62 is compressed; move the slider 6 along the slide groove 102 until the retaining ring 3 fits the side of the watertight compartment panel 4, and the connecting column 61 is embedded into the connecting hole 103 under the action of the rebound force of the first spring 62, so that the retaining ring 3 is fixed.

[0032] The interior of the retaining ring 3 is provided with a plurality of convex grooves 301 in a circular array, the convex groove 301 is connected to the outside, the groove wall of the convex groove 301 is fixedly connected with a third spring 302, the interior of the convex groove 301 is slidably connected with a fixing column 7, one end of the fixing column 7 is fixedly connected with the third spring 302, the other end of the fixing column 7 can extend to the outside of the convex groove 301, the outer side of the fixing column 7 is fixedly connected with a pull rod 71, the pull rod 71 passes through the convex groove 301 and extends to the outside of the convex groove 301.

[0033] The inner wall of the locking member 2 is provided with an internal thread matched with the threaded portion 101 . The interior of the locking member 2 is provided with a first connecting groove 201 . The first connecting groove 201 is matched with the fixing column 7 . The fixing column 7 can slide into the first connecting groove 201 .

[0034] The installation method of the locking member 2 is as follows: pull the pull rod 71, the pull rod 71 drives the fixing column 7 to slide into the convex groove 301, the third spring 302 is compressed, and then the locking member 2 is screwed in, so that the locking member 2 is gradually screwed into the threaded portion 101 in a threaded connection manner. When the locking member 2 is in contact with the stop ring 3, the locking member 2 is twisted forcefully again so that the locking member 2 firmly fixes the stop ring 3 and the housing 1. After ensuring that the locking member 2 cannot continue to be twisted, release the pull rod 71, and the fixing column 7 is driven into the first connecting groove 201 under the action of the rebound force of the third spring 302.

[0035] Working principle:

[0036] When the watertight connector needs to be assembled with the watertight compartment, the shell 1 is first inserted into the mounting hole of the watertight compartment panel 4 from the outside of the watertight compartment, one side of the boss 5 will be in contact with the outside of the watertight compartment panel 4, and then the retaining ring 3 and the locking member 2 are installed in sequence.

[0037] Align the slider 6 with the slide groove 102, press the two connecting columns 61, and move the two connecting columns 61 closer to each other, so that the two connecting columns 61 completely enter the interior of the slider 6 pair, and the first spring 62 is compressed; move the slider 6 along the slide groove 102 until the retaining ring 3 fits the side of the watertight compartment bulkhead 4, and the connecting column 61 is embedded into the connecting hole 103 under the action of the rebound force of the first spring 62, so that the retaining ring 3 is fixed.

[0038] Pull the pull rod 71, and the pull rod 71 drives the fixing column 7 to slide into the convex groove 301. The third spring 302 is compressed, and then the locking piece 2 is screwed in, so that the locking piece 2 is gradually screwed into the threaded portion 101 in a threaded connection manner. When the locking piece 2 is in contact with the stop ring 3, the locking piece 2 is twisted again with force so that the locking piece 2 can firmly fix the stop ring 3 and the housing 1. After ensuring that the locking piece 2 cannot continue to be twisted, release the pull rod 71, and the fixing column 7 is driven to enter the first connecting groove 201 under the action of the rebound force of the third spring 302.

[0039] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A watertight connector, characterized in that: include: A shell (1), a retaining ring (3) is sleeved on the shell (1), a locking member (2) is threadedly connected to the shell (1), a sliding groove (102) is opened on the shell (1), and both side walls of the sliding groove (102) are opened with connecting holes (103), the inner ring of the retaining ring (3) is fixedly provided with a slider (6) adapted to the sliding groove (102), the interior of the slider (6) is symmetrically slidably provided with a connecting column (61), a first spring (62) is fixedly connected between the two connecting columns (61), a plurality of convex grooves (301) are opened in an annular array manner inside the retaining ring (3), a third spring (302) is fixedly connected to the groove wall of the convex groove (301), a fixing column (7) is slidably connected to the interior of the convex groove (301), one end of the fixing column (7) is fixedly connected to the third spring (302), and a first connecting groove (201) is opened inside the locking member (2).

2. A watertight connector according to claim 1, characterized in that: A boss (5) is fixedly sleeved in the middle of the shell (1), a watertight compartment panel (4) is installed on the outer side of the shell (1), the watertight compartment panel (4) is installed between the boss (5) and the retaining ring (3), a mounting hole is opened in the middle of the watertight compartment panel (4), and the shell (1) passes through the mounting hole.

3. A watertight connector according to claim 1, characterized in that: The shell (1) is a hollow cylinder. Both ends of the shell (1) are open. A threaded portion (101) is provided on the outer ring of the shell (1) near one end. A sliding groove (102) is provided on the surface of the threaded portion (101) of the shell (1) along its axial direction.

4. A watertight connector according to claim 1, characterized in that: The connecting column (61) is adapted to the connecting hole (103).

5. A watertight connector according to claim 1, characterized in that: The convex groove (301) is connected to the outside, and the other end of the fixed column (7) can extend to the outside of the convex groove (301). The outer side of the fixed column (7) is fixedly connected with a pull rod (71), and the pull rod (71) passes through the convex groove (301) and extends to the outside of the convex groove (301).

6. A watertight connector according to claim 3, characterized in that: The inner wall of the locking member (2) is provided with an internal thread matched with the threaded portion (101), and the first connecting groove (201) is matched with the fixing column (7).

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