Plug, socket and mixed connector

Abstract

The utility model relates to a plug, socket and hybrid connector, said hybrid connector includes pressure-bearing adapter socket and non-pressure-bearing plug, pressure-bearing adapter socket includes pressure-bearing disc, adapter pressure-bearing outer cylinder, split joint and socket insulation part, through the special design of pressure-bearing adapter socket, realized the inside oil passing, the pressure-bearing outer cylinder of adapter pressure-bearing outer cylinder, split joint and socket insulation part of adapter pressure-bearing outer cylinder of adapter pressure-bearing outer cylinder of adapter pressure-bearing outer cylinder of adapter pressure-bearing outer cylinder of adapter pressure-bearing outer cylinder. According to the invention, multiple functions of external pressure bearing and internal cavity wire passing are realized, simultaneous passing of pressure-bearing to non-pressure-bearing photoelectric signals and pressurized fluid is realized, simultaneous transmission of different signals and fluid in a high-temperature and high-pressure environment is realized, temperature resistance and pressure resistance of the product are ensured, field assembly of the product is realized through structural design of the non-pressure-bearing plug, and the production cost is reduced. When the pressure-bearing adapter socket is used in cooperation with the pressure-bearing adapter socket, high-efficiency signal transmission from the underground to the ground is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially relates to a plug, socket and mixed loading connector. BACKGROUND

[0002] In the oil logging and other occasions, downhole equipment and uphole equipment need to be connected to transmit signals, because the downhole working environment temperature and working pressure are generally high, especially at the bottom of the well, which needs to bear a large liquid pressure and temperature, therefore, the signal transmission connection needs to have special requirements such as high pressure and high temperature resistance.

[0003] At present, the oil logging field mainly realizes the transmission of downhole data to uphole data through electric signals. The electric signal transmission of the traditional wiring mode uses a cable to transmit from uphole to downhole, which is directly connected with the downhole equipment, and cannot realize the quick disconnection of the uphole and downhole equipment, and it is also troublesome to switch the on-off of the signal in the later period, with high maintenance cost and unable to realize quick connection; the electric signal transmission using the electric connector mode can solve the problems of quick connection and disconnection of the equipment, and to some extent, meet the transmission demand of logging, but there are still many deficiencies:

[0004] (1) In the downhole test environment, not only signal transmission is needed, but also fluid needs to be transmitted to the ground for monitoring. The current high temperature and high pressure resistant electric connector mainly bears external pressure and cannot realize signal transmission under the simultaneous action of internal fluid and external fluid, that is, it cannot realize internal fluid transmission, so the current downhole fluid transmission and signal transmission still need to be separated and need two sets of downhole tools, resulting in complex test tools and unable to realize synchronous transmission of fluid and signal.

[0005] (2) With the increasing depth of oil drilling, the amount of data collected is also increasing, and the electric signal transmission cannot meet the transmission demand of future large data volume, and the electric signal has high loss in long distance transmission, which cannot be applied to the uphole and downhole signal transmission in deep application scenarios; optical fiber transmission has the characteristics of low loss and high transmission efficiency; with the rapid development of optical fiber communication technology, optical fiber connection technology also develops and is applied in many fields, but the existing optical fiber connection technology is mostly applied in ordinary environment, and how to realize optical fiber connection in high temperature and high pressure environment is a problem to be solved. CONTENT OF THE UTILITY MODEL

[0006] In view of the defects of the prior art, the utility model provides a plug, socket and mixed loading connector, which can realize simultaneous transmission of fluid transmission and photoelectric signal in high temperature and high pressure environment.

[0007] The technical scheme adopted by the utility model is:

[0008] A hybrid connector includes a pressure-bearing adapter socket and a non-pressure-bearing plug. The pressure-bearing adapter socket mainly consists of a pressure-bearing plate, a split connector, and a pressure-bearing adapter outer cylinder. The split connector includes a pressure-bearing end, an intermediate connector, and a non-pressure-bearing end. A pressure-bearing plate is installed on the pressure-bearing end of the split connector. A pressure-bearing adapter outer cylinder is installed on the outside of the pressure-bearing plate and the intermediate connector. The pressure-bearing plate, the split connector, and the pressure-bearing adapter outer cylinder are all sealed together. A pressure-bearing contact component is provided on the pressure-bearing plate. A fluid channel is provided in the pressure-bearing end of the split connector. A socket insulating component and a non-pressure-bearing contact component are installed in the cavity of the non-pressure-bearing end. A wire passage hole and a flow passage hole are provided in the intermediate connector. The non-pressure-bearing plug includes a plug housing, a plug insulating component, and a non-pressure-bearing contact component.

[0009] Furthermore, a cable passage cavity is formed between the pressure-bearing outer cylinder of the adapter and the pressure-bearing end of the split connector. The tail cable of the pressure-bearing contact component on the pressure plate is connected to the non-pressure-bearing contact component of the non-pressure-bearing end through the cable passage cavity and the cable passage hole. The fluid channel inside the pressure-bearing end of the split connector is connected to the flow hole, and the fluid is output to the outside of the pressure-bearing adapter socket through the fluid channel and the flow hole.

[0010] Furthermore, the outer diameter of the intermediate joint of the split connector is larger than the outer diameter of the pressure-bearing end and the non-pressure-bearing end. The inlet of the wire passage hole is located on the end face of the intermediate joint adjacent to the pressure-bearing end, and the outlet of the wire passage hole is connected to the cavity inside the non-pressure-bearing end. The inlet of the flow passage hole is connected to the fluid channel inside the pressure-bearing end, and the outlet of the flow passage hole is located on the end face of the intermediate joint adjacent to the non-pressure-bearing end.

[0011] Furthermore, the wire-passing hole is an oblique hole that runs straight from the wire-passing hole inlet to the wire-passing hole outlet, and the flow-through hole is an oblique hole that runs straight from the flow-through hole inlet to the flow-through hole outlet.

[0012] Furthermore, the wire passage is an oblique hole that runs straight from the wire passage inlet to the wire passage outlet, and the flow passage is in the form of a cross-shaped horizontal hole and a vertical hole. The vertical hole extends radially along the intermediate joint, and the horizontal hole extends axially along the intermediate joint. The horizontal hole and the vertical hole are vertically connected, and the inlet end of the vertical hole is connected to the fluid channel, while the outlet end of the horizontal hole is connected to the flow passage outlet.

[0013] Furthermore, the two ends of the transition pressure-bearing outer cylinder are connected to the pressure plate and the intermediate joint respectively by circumferentially distributed screws and sealed by a sealing unit.

[0014] Furthermore, the pressure-bearing end of the split joint is provided with an external thread and a sealing unit, and the outer circumferential surface of the intermediate joint near the non-pressure-bearing end is provided with an external thread and a sealing unit, which are used for sealing connection with user equipment, respectively.

[0015] Furthermore, the pressure-bearing adapter socket has a pressure-bearing plug at its pressure-bearing end that is connected to the pressure-bearing plate. The pressure-bearing plug is equipped with a pressure-bearing contact component that can be connected to the pressure-bearing plate. The pressure-bearing contact component on the pressure-bearing plug is connected to the optical / electrical signal wiring of the user equipment.

[0016] Furthermore, the non-pressure-bearing contact component of the non-pressure-bearing end of the split connector is installed on the socket insulation component. The socket insulation component is fixed in the cavity of the non-pressure-bearing end by the cooperation of a snap ring and a washer, or by adhesive or positioning claws.

[0017] Furthermore, the socket insulation component includes a socket insulator and a socket insulation pressure plate, which are either an integral structure or a two-piece snap-fit ​​structure. In the case of the two-piece snap-fit ​​structure, the socket insulator and the socket insulation pressure plate are snapped together through an uneven end face structure.

[0018] Furthermore, the plug insulation component includes a plug insulator and a plug insulation pressure plate. The plug insulation component is fixed inside the plug housing by means of a retaining spring and a washer, or by means of adhesive or positioning claws.

[0019] Furthermore, the contact components of the non-pressure-bearing plug are mounted on the plug insulator from the rear and secured by a positioning spring.

[0020] Furthermore, the plug insulator and the plug insulating pressure plate are two-piece snap-fit ​​structures, and the plug insulator and the plug insulating pressure plate are snap-fitted together through an uneven end face structure.

[0021] Furthermore, the non-pressure-bearing plug has a tail straight sleeve at the rear of the plug housing, the tail straight sleeve is fixedly connected to the tail end of the plug housing, and a sealing unit is provided on the outer wall of the front end of the tail straight sleeve.

[0022] Furthermore, the non-pressure-bearing end of the split connector has a long cylindrical structure, so that the cavity of the non-pressure-bearing end can accommodate the plug shell of the non-pressure-bearing plug when the plug and socket are inserted, and cooperate with the sealing unit on the outside of the front end of the tail straight sleeve to achieve pressure sealing after insertion.

[0023] Furthermore, the non-pressure end face of the pressure-bearing adapter socket is provided with a protrusion extending along the axial direction, and the outer circumferential surface of the tail straight sleeve is provided with a groove. Through the cooperation of the protrusion and the groove, the plug and socket can be guided and prevented from rotating.

[0024] Furthermore, a pressure-bearing cylinder is installed on the outside of the non-pressure-bearing end of the split connector. One end of the pressure-bearing cylinder is sealed and connected to the outer circumferential surface of the non-pressure-bearing end, and the other end extends beyond the end face of the non-pressure-bearing end. The pressure-bearing cylinder is used to wrap around the outside of the plug housing of the non-pressure-bearing plug after the plug and socket are inserted and cooperates with the sealing unit on the tail straight sleeve to achieve pressure sealing after insertion.

[0025] Furthermore, the inner wall of the non-pressure-bearing end of the split connector is provided with a keyway, and the outer circumferential surface of the plug housing of the non-pressure-bearing plug is provided with a convex key that mates with the keyway. The mating of the keyway and the convex key achieves insertion guidance and anti-rotation.

[0026] Furthermore, the sealing unit described in this utility model is a multi-layer sealing ring.

[0027] A socket, wherein the socket is a pressure-bearing adapter socket of the above-mentioned mixed connector.

[0028] A plug, wherein the plug is a non-pressure-bearing plug among the aforementioned mixed-assembly connectors.

[0029] This utility model can achieve at least the following beneficial effects:

[0030] 1. This utility model, through the special design of the pressure-bearing adapter socket, realizes multiple functions such as internal pressure bearing (oil passage), external pressure bearing, and internal cavity wire passage. It enables the simultaneous passage of photoelectric signals from pressure to non-pressure bearing and pressurized fluids, solves the problem of simultaneous transmission of different signals and fluids under high temperature and high pressure environments, and ensures the product's temperature and pressure resistance performance.

[0031] 2. The pressure-bearing adapter socket achieves end pressure bearing through the pressure-bearing plate. The pressure-bearing end contains multiple optical / electrical signal composites. The contact parts are fixed through high-temperature resistant insulating components to ensure pressure-resistant sealing performance. External pressure bearing relies on the adapter pressure-bearing sleeve and multi-layer sealing rings. High pressure resistance in high-temperature environments is achieved by using high-hardness, high-temperature resistant sealing rings.

[0032] 3. The split connector of the pressure-bearing adapter socket, through the ingenious design of the flow passage hole and the wire passage hole, realizes the synchronous transmission of downhole fluid and signal, and at the same time converts the optical / electrical signal to the internal part at the non-pressure-bearing end, which meets the user's clustering requirements after the signal is transmitted to the non-pressure-bearing end.

[0033] 4. The non-pressure-bearing end of the pressure-bearing adapter socket achieves pressure sealing after connection with the non-pressure-bearing plug by extending the cylinder or adding an external pressure-bearing cylinder.

[0034] 5. The non-pressure-bearing plug achieves on-site assembly by using a plug-in split design for the insulating components and a rear-mounted positioning spring for the contact components, thus solving the problem that customers cannot assemble large equipment such as cables in the factory. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the external shape of the pressure-bearing adapter socket in Embodiment 1 of this utility model;

[0036] Figure 2 This is a schematic diagram of the pressure-bearing adapter socket in Embodiment 1 of this utility model;

[0037] Figure 3 for Figure 2 A partial schematic diagram of the pressure-bearing end in Central Africa;

[0038] Figure 4 for Figure 3 A schematic diagram of the structure of the insulating components (including contact components) of the socket;

[0039] Figure 5 for Figure 2 Schematic diagrams of different cross-sections of the split-type connector;

[0040] Figure 6 This is a schematic diagram of another structure for the oil passage hole on a split connector;

[0041] Figure 7 This is a schematic diagram showing the addition of a pressure-bearing plug to the pressure-bearing side of the pressure-bearing adapter socket in Embodiment 1 of this utility model;

[0042] Figure 8 This is a schematic diagram of the non-pressure-bearing plug in Embodiment 1 of this utility model;

[0043] Figure 9 This is a cross-sectional view of the non-pressure-bearing plug in Embodiment 1 of this utility model;

[0044] Figure 10 This is a schematic diagram of the plug and socket mating connection in Embodiment 1 of this utility model;

[0045] Figure 11 This is a cross-sectional view of the plug and socket mating connection in Embodiment 1 of this utility model;

[0046] Figure 12 This is a schematic diagram of the plug-socket mating connection in Embodiment 2 of this utility model;

[0047] Figure 13 This is a schematic diagram of the external shape of the pressure-bearing adapter socket (excluding the pressure-bearing cylinder) in Embodiment 2 of this utility model;

[0048] Figure 14 This is a cross-sectional schematic diagram of the split connector of the pressure-bearing adapter socket in Embodiment 2 of this utility model;

[0049] Figure 15 This is a schematic diagram of the non-pressure-bearing plug in Embodiment 2 of this utility model.

[0050] Figure label:

[0051] 1. Pressure-bearing adapter socket: 11. Split connector, 12. Pressure-bearing plate, 13. Pressure-bearing outer cylinder of adapter, 14. Socket insulating component, 15. Pressure-bearing plug, 16. Pressure-bearing cylinder; 11a. Pressure-bearing end, 11b. Intermediate connector, 11c. Non-pressure-bearing end, 111. External thread one, 112. External thread two, 113. Fluid channel, 114. Wire hole, 115. Flow hole, 1151. Horizontal hole, 1152. Vertical hole, 1153. Open face, 116. Protrusion, 118. Keyway, 119. Cavity, 141. Socket insulator, 142. Socket insulating pressure plate, 143. Snap ring one;

[0052] 2 Non-pressure-bearing plug: 21 Splined housing, 22 Plug insulating component, 23 Tail straight sleeve, 221 Plug insulator, 222 Plug insulating pressure plate, 223 Snap ring II, 224 Washer, 225 Positioning spring, 211 Raised key, 231 Groove.

[0053] 3. Pressure-bearing photoelectric contact components: 31. Pressure-bearing photoelectric contact component; 32. Pressure-bearing electrical contact component;

[0054] 4 Non-pressure-bearing photoelectric contact components: 41 Non-pressure-bearing photoelectric contact components, 42 Non-pressure-bearing electrical contact components;

[0055] 5 sealing units: 51 sealing unit one, 52 sealing unit two, 53 sealing unit three, 54 sealing unit four, 55 sealing unit five, 56 sealing unit six, 57 sealing unit seven, 58 sealing unit eight;

[0056] 6 screws. Detailed Implementation

[0057] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0058] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the conditions under which this utility model can be implemented. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0059] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as an absolute limitation of this utility model.

[0060] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0061] To enable the connector to transmit fluid internally while bearing external pressure, and to achieve simultaneous transmission of optical / electrical signals under high temperature and high pressure environments, this utility model discloses a hybrid connector, including a pressure-bearing adapter socket 1 and a non-pressure-bearing plug 2. The pressure-bearing adapter socket 1 achieves the transition from pressure-bearing to non-pressure-bearing through the cooperation of a split connector 11 and a pressure plate 12. At the same time, through the special design of the split connector 11, the flow hole 115 and the wire hole 114 are designed separately, realizing the simultaneous transmission of signals and fluids in the same structure. The pressure-bearing adapter socket 1 and the non-pressure-bearing plug 2 guide the insertion and prevent rotation through the cooperation of keys and grooves, and achieve pressure sealing after insertion through the sealing unit 5 and structural design.

[0062] Example 1

[0063] like Figures 1-11 The diagram shown is a schematic representation of the various components of the hybrid connector in Embodiment 1. In this embodiment, the hybrid connector is a photoelectric / hydraulic hybrid connector. Wherein, as... Figures 1-4 As shown, the pressure-bearing adapter socket 1 includes a pressure-bearing plate 12, a split connector 11, an adapter pressure-bearing outer cylinder 13, a sealing unit 5, and a socket insulation component 14. The pressure-bearing adapter socket 1 comprises two parts: pressure-bearing and non-pressure-bearing. The pressure-bearing plate 12 is installed on the pressure-bearing end 11a of the split connector 11, and a pressure-bearing photoelectric contact component 3 is sealed and installed on the pressure-bearing plate 12 to achieve end-face pressure bearing. The adapter pressure-bearing outer cylinder 13 is installed outside the pressure-bearing plate 12 and the pressure-bearing end 11a of the split connector 11 to achieve lateral pressure bearing (radial pressure bearing on the outer circumferential surface). The pressure-bearing plate 12, the split connector 11, and the adapter pressure-bearing outer cylinder 13 are sealed and connected to each other through multiple sealing units 5. The socket insulation component 14 is installed in the cavity of the non-pressure-bearing end 11c of the split connector 11, and a non-pressure-bearing photoelectric contact component 4 is installed on the socket insulation component 14 for connecting with the non-pressure-bearing plug 2 to achieve photoelectric signal transmission.

[0064] like Figure 2 and 5 As shown (where, Figure 2 middle, Figure 2 (b) is a cross-sectional view of the pressure-bearing adapter socket. Figure 2 (a) and Figure 2 (c) are respectively Figure 2 (b) Right and left views, Figure 5 middle, Figure 5 (a) and Figure 5(b) are structural schematic diagrams of the split connector in different cross sections. The split connector 11 is a shaft-shaped structure that is thick in the middle and thin at both ends. From left to right (according to the direction shown in the figure), it consists of a pressure-bearing end 11a (i.e., the end of the split connector 11 located on the pressure-bearing side), an intermediate connector 11b, and a non-pressure-bearing end 11c. The intermediate connector 11b is connected between the pressure-bearing end 11a and the non-pressure-bearing end 11c, and the outer diameter of the intermediate connector 11b is larger than the outer diameter of the pressure-bearing end 11a and the non-pressure-bearing end 11c. The outer circumferential surface of the pressure-bearing end 11a of the split connector 11 is provided with an external thread 111 and a plurality of sealing units 5. The mounting grooves are respectively provided with sealing unit 1 51 and sealing unit 2 52. The outer circumferential surfaces of the left and right sides of the intermediate connector 11b are respectively provided with mounting grooves for sealing units 5, for installing sealing unit 3 53 and sealing unit 4 54. The outer circumferential surface of the right side is also provided with external thread 2 112. The external thread 111 and sealing unit 51 on the left side of the pressure-bearing end 11a of the split connector 11 are used to achieve a sealed connection with the downhole tubing. The external thread 2 112 and sealing unit 4 54 on the intermediate connector 11b of the split connector 11 are used to achieve a sealed connection with the user equipment on the surface. The external thread 111 and external thread 2 112 are preferably trapezoidal threads, which have good load-bearing capacity.

[0065] The pressure-bearing end 11a of the split connector 11 is a tubular structure with an axially arranged fluid channel 113 inside. The non-pressure-bearing end 11c of the split connector 11 is a cylindrical structure. The intermediate connector 11b is provided with separate flow holes 115 and wire holes 114. The inlet of the flow hole 115 is connected to the fluid channel 113 of the pressure-bearing end 11a, and the outlet of the flow hole 115 is located on the end face of the intermediate connector 11b near the non-pressure-bearing end 11c, for discharging fluid to the outside of the pressure-bearing adapter socket 1. The inlet of the wire hole 114 is located on the end face of the intermediate connector 11b near the pressure-bearing end 11a, and the outlet of the wire hole 114 is connected to the cavity of the non-pressure-bearing end 11c. A socket insulation component 14 and a non-pressure-bearing photoelectric contact component 4 are installed in the cavity of the non-pressure-bearing end 11c of the split connector 11.

[0066] The flow holes 115 and wire holes 114 on the split connector 11 must ensure that their respective inlets and outlets are connected to the corresponding cavities. The flow holes 115 and wire holes 114 are staggered and cannot intersect each other. There is no specific limit to the number of flow holes 115 and wire holes 114; multiple flow holes 115 and wire holes 114 can be provided, and their numbers can be equal or unequal. The flow holes 115 and wire holes 114 are respectively arranged in different sector sections of the intermediate connector 11b. They can be arranged alternately in the circumferential direction in the manner of flow holes, wire holes, flow holes, wire holes, etc., staggered from each other and without interference. In this embodiment, there are four flow holes 115 and four wire holes 114, which are alternately arranged in different sector sections of the intermediate connector 11b.

[0067] Normally, such as Figure 5 As shown, the flow passage 115 and the wire passage 114 are both oblique holes that connect directly from their respective inlets to their respective outlets. They are distributed in different sector areas of the intermediate connector 11b, but the form of the flow passage 115 and the wire passage 114 is not limited to this.

[0068] like Figure 6 As shown, the flow passage 115 can also be designed as a cross of horizontal hole 1151 and vertical hole 1152. The vertical hole 1152 extends radially along the intermediate connector 11b and communicates with the fluid channel 113 of the pressure bearing end 11a. The horizontal hole 1151 extends axially (in a direction parallel to the axis of the split connector 11). The left end of the horizontal hole 1151 is perpendicularly connected to the vertical hole 1152. The outlet of the horizontal hole 1151 is located on the end face of the intermediate connector 11b adjacent to the non-pressure bearing side. The flow passage 115 with this structure can also pass oil and is also convenient for processing. When processing the vertical hole 1152, the hole is drilled radially inward from the outer peripheral surface of the intermediate joint 11b. When processing the horizontal hole 1151, the hole is drilled axially inward from the non-pressure-bearing end face of the intermediate joint 11b. However, when processing the vertical hole 1152, this type of flow passage 115 will form an opening 1153 on the pressure-bearing surface of the split joint 11. In actual use, the opening 1153 needs to be processed again, and sealed by welding or adding a sealing plug. Compared with the method of using oblique holes, there may be a risk of pressure-bearing seal failure.

[0069] like Figures 1-2 As shown, a pressure-bearing photoelectric contact component 3 is sealed on the end face of the pressure plate 12. The pressure-bearing photoelectric contact component 3 includes a single-core / multi-core pressure-bearing electrical contact component 32 and a single-core / multi-core pressure-bearing optical contact component 31. The single-core / multi-core pressure-bearing electrical contact component 32 is set on the pressure plate 12 by mold injection with rubber ring or by glass sintering to achieve the high temperature and high pressure resistance of the product. The single-core / multi-core pressure-bearing optical contact component 31 is set on the pressure plate 12 by potting or glass sintering. The pressure plate 12 has a through hole in the middle. The pressure plate 12 is sleeved on the pressure end 11a of the split connector 11 through the through hole, and the two are sealed by the sealing unit 2 52 set on the pressure end 11a of the split connector 11. The outer peripheral surface of the pressure plate 12 is provided with a sealing unit mounting groove, and sealing unit 55 and sealing unit 6 56 are installed respectively.

[0070] The transition pressure-bearing outer cylinder 13 is installed outside the pressure plate 12 and the intermediate connector 11b. The transition pressure-bearing outer cylinder 13 and the pressure plate 12 are sealed by sealing unit 6 56, and the transition pressure-bearing outer cylinder 13 and the intermediate connector 11b are sealed by sealing unit 3 53. The two ends of the transition pressure-bearing outer cylinder 13 are fixed to the outer circumferential surface of the pressure plate 12 and the intermediate connector 11b by screws 6 or other means, so as to realize the lateral pressure bearing of the pressure-bearing transition socket 1. A cable passage cavity is formed between the transition pressure-bearing outer cylinder 13 and the pressure-bearing end 11a of the split connector 11, which is used to reserve space for the retraction and transition of the tail cable of the contact component on the pressure plate 12.

[0071] The sealing unit 5 (including the aforementioned sealing unit one to sealing unit six) used on the pressure-bearing adapter socket 1 all adopt the form of multi-layer sealing rings. The sealing rings are high-hardness, high-temperature resistant sealing rubber rings to achieve high pressure resistance in high-temperature environments.

[0072] like Figures 2-3 As shown, a socket insulating component 14 is installed in the inner cavity of the non-pressure-bearing end 11c of the split connector 11. The socket insulating component 14 is used to fix and assemble the non-pressure-bearing photoelectric contact component 4. The non-pressure-bearing photoelectric contact component 4 includes a single-core / multi-core optical contact component 41 and a single-core / multi-core electrical contact component 42. The socket insulating component 14 is fixed in the split connector 11 by a snap ring 143 and a washer, or it can be fixed by adhesive or a claw. The non-pressure-bearing end 11c of the split connector 11 and the socket insulating component 14 achieve an anti-rotation function through a key and slot cooperation. After the socket insulating component 14 is assembled into the inner cavity of the non-pressure-bearing end 11c of the split connector 11, a certain cavity 119 needs to be reserved between it and the intermediate connector 11b to ensure the bending and retraction space of the optical fiber.

[0073] like Figures 3-4 As shown (where, Figure 4 (a) and Figure 4 (b) are the outline and sectional view of the socket insulation component, respectively. The socket insulation component 14 includes a socket insulation pressure plate 142 and a socket insulator 141, which can be designed as a two-piece snap-fit ​​structure or a one-piece structure. When the socket insulator 141 and the socket insulation pressure plate 142 are a two-piece snap-fit ​​structure ( Figures 3-4As shown in the diagram (a two-piece interlocking structure), a boss structure is formed on the end face of the socket insulator 141 corresponding to the mounting hole position of the electrical contact component, and a recess is formed on the end face of the socket insulating pressure plate 142 corresponding to the mounting hole position of the electrical contact component. The two are interlocked together through the cooperation of the boss and recess structures. This interlocking method can increase the creepage distance between electrical contacts and between electrical contacts and the outer shell, thereby improving the voltage withstand capability and high current carrying capacity of the product within a small outer diameter range. When the socket insulator 141 and the socket insulating pressure plate 142 are designed as a single structure, the outer dimensions of the socket insulator 141 need to be increased accordingly to increase the creepage distance and improve the voltage withstand capability.

[0074] In this embodiment 1, the non-pressure-bearing end 11c of the split connector 11 is designed as a long cylindrical structure. After the socket insulation component 14 is installed, the non-pressure-bearing end 11c has a certain length reserved on the side of the plug end connected to the non-pressure-bearing plug 2. This length is used to accommodate the non-pressure-bearing plug when the head is plugged in and to achieve pressure sealing after plugging. That is, the cylindrical body of the non-pressure-bearing end 11c of the split connector 11 must be long enough to ensure that after plugging, the plugging interface and the shell part of the non-pressure-bearing plug 2 are covered by the cylindrical body of the non-pressure-bearing end 11c. At this time, the end face of the non-pressure-bearing end 11c of the split connector 11 is a non-flush structure and is provided with multiple axially extending protrusions 116.

[0075] The pressure-bearing adapter 1 achieves its pressure-bearing design through the cooperation of the split connector 11, the pressure-bearing plate 12, and the pressure-bearing outer cylinder 13. The design of the flow holes 115 and wire holes 114 on the split connector 11 allows for the passage of fluid and photoelectric signals. In use, the bottom hole electrical signal on the pressure-bearing side is fixed to the single-core and multi-core pressure-bearing electrical contact components 32 on the pressure-bearing plate 12 by welding or crimping. The bottom hole optical signal is connected to the single-core / multi-core optical contact component 31 (optical connector) on the pressure-bearing plate 12 through a movable connector or direct fiber optic splicing to achieve optical signal transmission. The downhole oil pipeline is directly connected to the split connector 12. The pressure-bearing end 11a of connector 11 is connected to enable the flow of pressurized fluid at the bottom of the well. The high-hardness sealing ring and shell design enable the product to withstand high temperature and high pressure. At the same time, the trapezoidal thread connects the tubing and the split connector 11, enabling the component to bear the weight of the downhole equipment. The photoelectric signal on the pressure-bearing side is connected to the photoelectric mixed contact component on the non-pressure-bearing side through the wire passing through the internal cavity of the split connector 11, realizing the interconnection of the entire signal link. The downhole fluid passes through the internal cavity of the split connector 11, allowing the fluid to pass from the inside of the split connector 11 to the outside of the non-pressure-bearing side of the split connector 11. The two functions do not interfere with each other.

[0076] To facilitate signal connection between the pressure-bearing adapter socket 1 and the downhole equipment, as a further optimization of the aforementioned pressure-bearing adapter socket 1, such as... Figure 7As shown, the pressure-bearing side of the pressure-bearing adapter socket 1 can be designed as a head-and-seat mating structure according to requirements, that is, the pressure-bearing plate 12 is designed as a two-body mating structure. Based on the pressure-bearing adapter socket 1 described in the above embodiment, a pressure-bearing plug 15 is added to the pressure-bearing side to cooperate with the pressure-bearing plate 12. The structure of the pressure-bearing plug 15 is similar to that of the pressure-bearing plate 12. The pressure-bearing plug 15 is provided with a pressure-bearing photoelectric contact component 3, and an oil pipe channel is left in the middle. The pressure-bearing plug 15 and the pressure-bearing photoelectric contact component 3 on the pressure-bearing plate 12 cooperate with each other (in the form of a pin and a socket). For example, the pressure-bearing plug... The plug 15 is a socket assembly, while the pressure plate 12 is a pin assembly. The pressure-bearing photoelectric contact 3 on the pressure plug 15 is connected to the photoelectric signal of the downhole equipment. In use, the downhole photoelectric signal can be connected to the pressure adapter 1 by directly plugging the pressure plug 15 and the pressure plate 12 of the pressure adapter 1. The downhole tubing passes through the tubing channel on the pressure plug 15 and connects to the pressure end 11a of the split connector 11. This structure can meet the function of quick connection or disconnection between the pressure side and the downhole equipment. The photoelectric parts do not need to be wired on site. They can be directly plugged in during use.

[0077] like Figures 8-9 As shown ( Figure 8 (I) is a left view of the non-pressure-bearing plug. The non-pressure-bearing plug 2 includes a splined housing 21, a plug insulation component 22, and a non-pressure-bearing photoelectric contact component 4. The plug insulation component 22 is located inside the splined housing 21, with the plug-in end of the non-pressure-bearing plug 2 and the pressure-bearing adapter socket 1 as the front end. The plug insulation component 22 is pre-installed into the splined housing 21 and fixed inside the splined housing 21 by a retaining spring 223 and a washer 224. Alternatively, the plug insulation component 22 can also be fixed inside the splined housing 21 by adhesive, positioning claws, etc. The non-pressure-bearing photoelectric contact component 4 includes a single-core / multi-core electrical contact 42 and a single-core / multi-core optical contact 41. The non-pressure-bearing photoelectric contact component 4 is installed in the plug insulation component 22 by a rear-mounting method and is fixed by a positioning spring 225 and the plug insulation component 22. The splined housing 21 is also provided with multiple key positions and fixing grooves to realize the axial positioning and anti-rotation of the plug insulation component 22.

[0078] The plug insulation component 22 includes a plug insulation pressure plate 222 and a plug insulator 221. The plug insulation pressure plate 222 and the plug insulator 221 are designed to be interlocked (i.e., a two-piece snap-fit ​​structure, which is connected by a concave-convex structure on the end face, similar to the socket insulator 141 and socket insulation pressure plate 142 mentioned above). By designing the plug insulation pressure plate 222 and the plug insulator 221 as a snap-fit ​​split structure, the creepage distance of the entire product is increased, and the high withstand voltage index of the product is achieved.

[0079] The non-pressure-bearing plug 2 also includes a tail straight sleeve 23. The tail straight sleeve 23 is used to provide space for fiber optic splicing during wiring of the non-pressure-bearing plug 2 and the length for welding with the steel conduit cable at the customer's location. The tail straight sleeve 23 is installed at the tail of the spline housing 21. The tail straight sleeve 23 is provided with multiple slots and multiple keys on the spline housing 21 for orientation and is fixedly connected to the spline housing 21 by bonding. The tail straight sleeve 23 can also be fixed to the tail of the spline housing 21 by threaded connection, screw connection, etc. A sealing unit 7 57 is installed on the outer wall of the front end of the tail straight sleeve 23. The sealing unit 7 57 is also composed of multiple layers of high-hardness sealing rings. A groove 231 is provided on the outer front end of the tail straight sleeve 23 for cooperating with the protrusion 116 on the non-pressure-bearing end 11c of the pressure-bearing adapter socket 1 to achieve insertion guidance and anti-rotation.

[0080] When using the non-pressure-bearing plug 2, on-site wiring design is carried out. After the internal electrical and optical contacts and cables are crimped / welded and fused on-site, they are fixed with the plug insulator 221 by means of positioning spring. Then, the splined housing 21 is bonded and fixed with the tail straight sleeve 23 component through key fit, thereby forming the plug component. Finally, the plug component is welded to the user's conduit cable to form a cable assembly.

[0081] In this embodiment, the non-pressure-bearing photoelectric contact component 4 on the non-pressure-bearing plug 2 is selected as a photoelectric / electric socket assembly, and the non-pressure-bearing photoelectric contact component 4 on the non-pressure-bearing end 11c of the pressure-bearing adapter 1 is selected as a photoelectric / electric pin assembly. In actual use, a pin assembly can also be provided on the non-pressure-bearing plug 2, and a socket assembly can be provided on the non-pressure-bearing end 11c of the pressure-bearing adapter 1. Alternatively, a mixed pin / socket assembly can be provided on the non-pressure-bearing plug 2, and a corresponding mixed socket / pin assembly can be provided on the non-pressure-bearing end 11c of the pressure-bearing adapter 1.

[0082] like Figures 10-11The diagram shows the mating connection of the pressure-bearing adapter socket 1 and the non-pressure-bearing plug 2. In use, the pressure-bearing side of the pressure-bearing adapter socket 1 is connected to the downhole photoelectric signal via field wiring or a head-and-seat mating method (pressure-bearing plug 15 mates with pressure-bearing plate 12). The downhole tubing is sealed to the pressure-bearing end 11a. The non-pressure-bearing side can be connected to the user's surface equipment for fluid transfer. The non-pressure-bearing plug 2 is wired in the field. After the wiring of the non-pressure-bearing plug 2 and the pressure-bearing adapter socket 1 is completed... The non-pressure end 11c of the pressure-bearing adapter socket 1 is connected to the non-pressure-bearing plug 2. During insertion, the protrusion 116 and the groove 231 cooperate to guide the insertion and prevent rotation. After the two are inserted into place, the splined housing 21 of the non-pressure-bearing plug 2 and the front end of the tail straight sleeve 23 are located in the cylinder of the non-pressure-bearing end 11c of the split connector 11. At the same time, the cylinder of the non-pressure-bearing end 11c of the split connector 11 cooperates with the sealing unit 57 at the front end of the tail straight sleeve 23 to achieve a seal, thereby achieving a pressure-bearing seal after insertion.

[0083] Since the tail cable of the pressure-bearing photoelectric contact component 3 on the pressure plate 12 is connected to the non-pressure-bearing photoelectric contact component 4 on the socket insulation component 14 through the cable passage cavity and cable passage hole 114, the pressure-bearing side of the pressure-bearing adapter socket 1 is connected to the photoelectric signal of the downhole customer equipment through field wiring or head-and-socket mating, thus realizing the passage of photoelectric signal from the pressure-bearing end 11a to the non-pressure-bearing end 11c; after the plug and socket are mated, the photoelectric signal is transmitted from downhole to surface through the cooperation of the contact components; the pressure-bearing side of the pressure-bearing adapter socket 1 is sealed to the downhole tubing, and the end of the intermediate joint 11b near the non-pressure-bearing side is connected to the surface equipment. The downhole oil fluid enters the fluid channel 113 in the pressure-bearing end 11a and is discharged to the outside of the socket through the flow hole 115 on the intermediate joint 11b, thus realizing the transmission of fluid from downhole to surface. Thus, the synchronous transmission of photoelectric signals and fluid between downhole and surface is realized.

[0084] Example 2

[0085] like Figures 12-15 As shown, this embodiment 2 provides another implementation of the mixed-assembly connector: Unlike embodiment 1, in this embodiment, the length of the cylinder of the non-pressure-bearing end 11c of the split connector 11 of the pressure-bearing adapter socket 1 is shortened, and a pressure-bearing cylinder 16 is connected externally. That is, the length of the non-pressure-bearing end 11c of the split connector 11 only needs to meet the installation requirements of the socket insulation component 14 and the non-pressure-bearing photoelectric contact component 4, such as... Figures 13-14There is no need to reserve extra length for the splined housing 21 to accommodate the non-pressure-bearing plug 3. A pressure-bearing cylinder 16 is added outside the non-pressure-bearing end 11c. The pressure-bearing cylinder 16 serves to accommodate and cover the non-pressure-bearing plug 2. The pressure-bearing cylinder 16 is fixed to the outside of the non-pressure-bearing end 11c by screws 6, etc., and the sealing surface with the split connector 11 is achieved by a sealing unit 8 58 (multi-layer high-hardness sealing ring) provided outside the non-pressure-bearing end 11c. The pressure-bearing cylinder 16 extends beyond the end face of the non-pressure-bearing end 11c. Since the diameter of the external pressure-bearing cylinder 16 is larger than the diameter of the non-pressure-bearing end 11c, the dimensions of the splined housing 21 of the non-pressure-bearing plug 2 and the front end of the tail straight sleeve 23 need to be increased accordingly to match the pressure-bearing cylinder 16. The dimensions of the rear end of the tail straight sleeve 23 can remain unchanged. Figure 15 As shown. At the same time, the anti-rotation structure of the plug and socket is changed. In this embodiment, a keyway 118 is provided on the inner wall of the non-pressure end 11c of the split connector 11 of the pressure-bearing adapter socket 1, and a convex key 211 is provided on the outer front end of the spline housing 21 of the non-pressure-bearing plug 2. The anti-rotation is achieved by the cooperation of the keyway 118 and the convex key 211; other parts not mentioned refer to Embodiment 1.

[0086] In this embodiment 2, when the head and base of the opto-hydraulic hybrid connector are inserted, guidance and anti-rotation are achieved through the cooperation of the keyway 118 and the convex key 211 at the insertion end. When the insertion is complete, the pressure-bearing cylinder 16 installed on the split connector 11 covers the outside of the splined housing 21 and the front end of the tail straight sleeve 23 of the non-pressure-bearing plug 2, and cooperates with the sealing unit 57 on the outer wall of the front end of the tail straight sleeve 23 to achieve sealing, thereby achieving pressure bearing after insertion. The external shape of the insertion state is shown in the figure. Figure 12 As shown.

[0087] In this embodiment 2, the non-pressure-bearing end 11c of the split connector 11 is easier to manufacture due to its shorter length. However, the addition of the pressure-bearing cylinder 16 increases the overall size of the mating part. Those skilled in the art can select a suitable implementation based on the characteristics of embodiments 1 and 2, combined with the specific circumstances of the example.

[0088] Example of a socket: In this example, the socket is a pressure-bearing adapter socket in any of the above examples of opto-hydraulic hybrid connectors, and will not be described again.

[0089] Example of a plug: In this example, the plug is a non-pressure-bearing plug in any of the above examples of opto-hydraulic hybrid connectors, and will not be described again.

[0090] In the above embodiments, the contact components in the hybrid connector are optoelectronic hybrid contact components. That is, the hybrid connector is described with optoelectronic liquid hybrid as an example. In actual use, those skilled in the art can freely choose the number and type of contact components in the connector according to the type of signal to be transmitted. All-electric contact components, all-optical contact components or optoelectronic hybrid contact components can be selected.

[0091] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hybrid connector, characterized by, The utility model provides a pressure adapter socket (1) and non-pressure plug (2), the pressure adapter socket (1) mainly comprises pressure disc (12), split joint (11) and adapter pressure outer cylinder (13), the split joint (11) includes pressure end (11a), intermediate joint (11b) and non-pressure end (11c), the pressure disc (12) is installed on the pressure end (11a) of split joint (11), the pressure disc (12) and intermediate joint (11b) are installed with adapter pressure outer cylinder (13) on the outside, and the pressure disc (12), split joint (11) and adapter pressure outer cylinder (13) are all sealed connection, the pressure disc (12) is provided with pressure contact component, the pressure end (11a) of split joint (11) is equipped with fluid passage (113), the cavity of non-pressure end (11c) is installed with socket insulation component (14) and non-pressure contact component, the intermediate joint (11b) is equipped with wire hole (114) and flow hole (115), the non-pressure plug (2) includes plug shell (21), plug insulation component (22) and non-pressure contact component, and the non-pressure end (11c) of pressure adapter socket (1) is connected with the non-pressure plug (2) and is inserted.

2. A hybrid connector according to claim 1, wherein The adapter pressure outer cylinder (13) and the pressure end (11a) of split joint (11) form wire cavity, and the tail cable of pressure contact component on the pressure disc (12) is connected with the non-pressure contact component of non-pressure end (11c) through the wire cavity and wire hole (114), and the fluid passage (113) in the pressure end (11a) of split joint (11) is communicated with the flow hole (115), and fluid is output to the outside of pressure adapter socket (1) through the fluid passage (113) and flow hole (115).

3. A hybrid connector according to claim 2, wherein The outer diameter of intermediate joint (11b) of split joint (11) is greater than the outer diameter of pressure end (11a) and non-pressure end (11c), the wire hole (114) import is arranged on the end face of intermediate joint (11b) adjacent to pressure end (11a), and the wire hole (114) export is communicated with the cavity in non-pressure end (11c);The flow hole (115) import is communicated with the fluid passage (113) in the pressure end (11a), and the flow hole (115) export is arranged on the end face of intermediate joint (11b) adjacent to non-pressure end (11c).

4. A hybrid connector according to claim 3, wherein The wire hole (114) is inclined hole that is linearly communicated from the wire hole (114) import to the wire hole (114) export, and the flow hole (115) is inclined hole that is linearly communicated from the flow hole (115) import to the flow hole (115) export.

5. A hybrid connector according to claim 3, wherein The through hole (114) is a slant hole that linearly communicates from the inlet of the through hole (114) to the outlet of the through hole (114), the through flow hole (115) is in the form of a cross of a horizontal hole (1151) and a vertical hole (1152), the vertical hole (1152) extends along the radial direction of the intermediate joint (11b), the horizontal hole (1151) extends along the axial direction of the intermediate joint (11b), the horizontal hole (1151) and the vertical hole (1152) vertically communicate, and the inlet end of the vertical hole (1152) communicates with the fluid passage (113), and the outlet end of the horizontal hole (1151) communicates with the outlet of the through flow hole (115).

6. The hybrid connector of claim 1, wherein, The two ends of the adapter pressure outer cylinder (13) are connected with the pressure disc (12) and the intermediate joint (11b) respectively through the circumferentially distributed screws (6) and are sealed by the sealing units (5).

7. A hybrid connector according to claim 6, wherein The pressure end (11a) of the split joint (11) is provided with an outer thread one (111) and a sealing unit (5), and the outer periphery of the intermediate joint (11b) close to the non-pressure end (11c) is provided with an outer thread two (112) and a sealing unit (5), which are respectively used for sealing connection with user equipment.

8. The hybrid connector of claim 1, wherein, The pressure end (11a) of the adapter pressure socket (1) is provided with a pressure plug (15) that is connected with the pressure disc (12), the pressure plug (15) is provided with a pressure contact component and can be connected with the pressure disc (12), and the pressure contact component of the pressure plug (15) is connected with the optical / electrical signal wiring of the user equipment.

9. The hybrid connector of claim 1, wherein, The non-pressure contact component of the non-pressure end (11c) of the split joint (11) is mounted on the socket insulating component (14), the socket insulating component (14) is fixed in the cavity of the non-pressure end (11c) by cooperation of a snap spring and a gasket, or is fixed in the cavity of the non-pressure end (11c) by a form of adhesive or positioning claw.

10. A hybrid connector according to claim 9, wherein, The socket insulating component (14) comprises a socket insulator (141) and a socket insulating pressing plate (142), which are an integrated structure or a two-body buckling structure, and when the two-body buckling structure, the socket insulator (141) and the socket insulating pressing plate (142) are buckled and connected through uneven end face structures.

11. The hybrid connector of claim 1, wherein, The plug insulating component (22) comprises a plug insulator (221) and a plug insulating pressing plate (222), and the plug insulating component (22) is fixed in the plug shell (21) by cooperation of a snap spring and a gasket, or is fixed in the plug shell (21) by a form of adhesive or positioning claw.

12. A hybrid connector according to claim 11, wherein, The contact component of the non-pressure plug (2) is mounted on the plug insulator (221) in a rear-end mounting manner and is fixed by a positioning spring (225).

13. The hybrid connector of claim 11, wherein, The plug insulator (221) and the plug insulating pressing plate (222) are a two-body buckling structure, and the plug insulator (221) and the plug insulating pressing plate (222) are buckled and connected through uneven end face structures.

14. The hybrid connector of claim 1, wherein, The rear of the plug shell (21) of the non-pressure plug (2) is provided with a tail straight sleeve (23), the tail straight sleeve (23) is fixedly connected to the tail end of the plug shell (21), and the outer wall of the front end of the tail straight sleeve (23) is provided with a sealing unit (5).

15. A hybrid connector according to claim 14, wherein, The non-pressure-bearing end (11c) of the split connector (11) is in a long cylindrical structure, so that the cavity of the non-pressure-bearing end (11c) can accommodate the plug shell (21) of the non-pressure-bearing plug (2) when the plug and socket are inserted into each other, and cooperate with the sealing unit (5) on the outer end of the tail straight sleeve (23) to achieve pressure sealing after insertion.

16. A hybrid connector according to claim 15, wherein, The end surface of the non-pressure-bearing end (11c) of the pressure-bearing adapter socket (1) is provided with a protrusion (116) extending in the axial direction, and the outer surface of the tail straight sleeve (23) is provided with a groove (231), and the cooperation of the protrusion (116) and the groove (231) realizes the insertion of the plug and socket and prevents rotation.

17. The hybrid connector of claim 14, wherein, The non-pressure-bearing end (11c) of the split connector (11) is externally mounted with a pressure-bearing cylinder (16), one end of which is sealingly connected to the outer surface of the non-pressure-bearing end (11c), and the other end extends beyond the end surface of the non-pressure-bearing end (11c), and the pressure-bearing cylinder (16) is used to wrap around the outside of the plug shell (21) of the non-pressure-bearing plug (2) after the plug and socket are inserted into each other, and cooperate with the sealing unit (5) on the tail straight sleeve (23) to achieve pressure sealing after insertion.

18. A hybrid connector according to claim 17, wherein, The insertion end inner wall of the non-pressure-bearing end (11c) of the split connector (11) is provided with a key groove (118), and the outer peripheral surface of the insertion end of the plug shell (21) of the non-pressure-bearing plug (2) is provided with a protruding key (211) cooperating with the key groove (118), and the cooperation of the key groove (118) and the protruding key (211) realizes the insertion of the plug and socket and prevents rotation.

19. A hybrid connector according to claim 6 or 7 or 14, wherein, The sealing unit (5) is a multi-layer sealing ring.

20. A socket, characterized by The socket is a pressure-bearing adapter socket (1) of a mixed loading connector according to any one of claims 1-19.

21. A plug, characterized by The plug is a non-pressure-bearing plug (2) of a mixed loading connector according to any one of claims 1-19.

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