Under-pressure sealing oil injection switching equipment

Abstract

The utility model discloses under-pressure sealing oil injection switching equipment, which relates to the technical field of switching equipment and comprises a mounting seat, a three-way pipe group, a sleeve, an ejector rod and an abutting piece, the three-way pipe group is provided with a mounting hole penetrating through the three-way pipe group and an injection and drainage hole communicated with the mounting hole; the shaft end of the sleeve is provided with a clamping structure and can drive the oil plug to rotate through the clamping structure. The ejector rod penetrates through the sleeve and is used for abutting against the oil plug. When the oil plug is disassembled, the clamping structure of the sleeve is matched with the oil plug, and the sleeve is rotated reversely, so that the oil plug is unscrewed from the oil port of the cable; when the oil plug is installed, oil injection of the oil cavity is completed, the oil cavity is in a positive pressure state, the ejector rod abuts against the oil plug to move towards the oil port of the cable, and when the oil plug moves to the oil port, the sleeve is connected with the oil plug in a clamped mode and the sleeve is rotated in the forward direction, so that the oil plug can be connected with the oil port.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switching equipment technical field, especially a kind of sealing oil injection switching equipment with pressure. BACKGROUND

[0002] Underwater electric flying wire is widely used in deep-sea oil and gas exploitation, underwater equipment power supply and communication fields. To ensure the sealing of electric flying wire, oil cavity is often arranged inside the electric flying wire, and oil plug is used to seal the oil cavity, and the sealing method is thread sealing. The invention patent with publication No. CN118030990A discloses a sealing oil injection adapter with pressure, which comprises a connecting rod and a plug pin; the plug pin is connected with the oil port of the cable through thread, and the connecting rod is used to connect with the plug pin, and the connection mode is also thread connection.

[0003] In the prior art, when the plug pin is detached from the oil port by the connecting rod, the connecting rod may be first loosened and separated from the plug pin, causing the plug pin to be inconvenient to disassemble. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a sealing oil injection adapter with pressure, which aims to solve the technical problem that there is no device in the prior art that can effectively disassemble the plug and the cable.

[0005] To achieve the above purpose, the utility model provides a sealing oil injection adapter with pressure, which comprises:

[0006] A mounting seat;

[0007] A tee pipe group, which is arranged on the mounting seat, and one end of the tee pipe group is used to abut against the cable; the tee pipe group is provided with a mounting hole penetrating through the tee pipe group and an injection and drainage hole communicating with the mounting hole, wherein the oil plug of the cable can be inserted into the mounting hole;

[0008] A sleeve, which cooperates with the mounting hole; the shaft end of the sleeve is provided with a clamping structure and can drive the oil plug to rotate through the clamping structure;

[0009] A jacking rod, which penetrates through the sleeve and is used to abut against the oil plug; at least one of the sleeve and the jacking rod has magnetic attraction capacity for adsorbing the oil plug;

[0010] An abutting piece, which is movably arranged in the mounting seat, and the abutting piece and the tee pipe group are used to clamp the cable from the two radial sides.

[0011] When the oil plug is disassembled, the sleeve is matched with the oil plug by the clamping structure, the sleeve is reversely rotated, the oil plug is loosened from the oil port of the cable, the oil plug is adsorbed by the sleeve or the jacking rod at this time, and the oil plug is moved to the installation hole, and oil is injected into the oil cavity of the cable through the installation hole and the injection and drainage hole; when the oil plug is installed, the oil cavity has been injected with oil, and the oil cavity is in a positive pressure state, the jacking rod abuts against the oil plug to move towards the oil port of the cable, when the oil plug moves to the oil port, the sleeve is clamped with the oil plug, the sleeve is forwardly rotated, and then the oil plug can be connected with the oil port.

[0012] Optionally, the tee pipe group comprises a tee head and a mounting sleeve; the mounting seat is provided with a connecting hole; the tee head is provided with the installation hole and the injection and drainage hole; one end of the tee head passes through the connecting hole and is provided with external threads; the mounting sleeve is provided with internal threads, and the mounting sleeve is threadedly connected with the tee head; the mounting sleeve is provided with a insertion hole for the sleeve to pass through.

[0013] Optionally, the outer side wall of the sleeve is provided with a limiting block with a diameter larger than that of the installation hole and the insertion hole.

[0014] Optionally, the sleeve is provided with a handle, and an outer wall of the handle is provided with anti-skid lines.

[0015] Optionally, the first sealing ring is further arranged; an outer side of the jacking rod is provided with a first ring groove for mounting the first sealing ring, and the first sealing ring is used for sealing a gap between the jacking rod and the sleeve; the first sealing ring can prevent the oil in the sleeve from exuding; and the first sealing ring can also prevent external air from entering the installation hole from the gap between the sleeve and the jacking rod, so that the oil cavity of the cable is mixed with air.

[0016] Optionally, the second sealing ring is further arranged; the tee pipe group is provided with a second ring groove for mounting the second sealing ring, and the second sealing ring is used for sealing a gap between the sleeve and the side wall of the installation hole; and the second sealing ring can prevent the oil from exuding from the matching position of the sleeve and the tee head.

[0017] Optionally, the third sealing ring is further arranged; one end of the tee pipe group for abutting against the cable is provided with a third ring groove for mounting the third sealing ring, and the third sealing ring is used for sealing a gap between the tee pipe group and the cable; the third sealing ring can prevent the oil from exuding from the contact position of the tee head and the cable, and can also prevent external air from entering the oil cavity.

[0018] Optionally, the tee pipe group is provided with a buffer cavity at the connection position of the installation hole and the injection and drainage hole, and the diameter of the installation hole and the diameter of the injection and drainage hole are both smaller than the diameter of the buffer cavity; when the oil is drained, the buffer cavity can consume part of kinetic energy of the oil, so that the impact of the oil is reduced, the internal structure of the switching device is not affected, and the connection between the injection and drainage hole and the oil pipe is not affected.

[0019] Optionally, further comprising a pressing mechanism; the pressing mechanism comprises a connecting seat, a handle, a connecting rod and a pressing piece;

[0020] The connecting rod is rotationally connected with the connecting seat at point A, and the connecting rod is rotationally connected with the handle at point B; the handle is rotationally connected with the pressing piece at point C; the pressing piece is rotationally connected with the connecting seat at point D; by rotating the handle, the pressing piece is away from the end of the handle away from the top rod or axially presses the top rod. By pressing the top rod with the pressing mechanism, one hand is released, and the oil plug is more convenient to twist.

[0021] Optionally, further comprising a lifting mechanism, the lifting mechanism comprises a screw rod; the mounting seat is provided with a sliding hole with an axis parallel to the axis of the sleeve; the connecting seat is slidingly arranged in the sliding hole, and the connecting seat is provided with a threaded hole; one end of the screw rod is rotationally connected with the mounting seat, and the other end of the screw rod is threadedly connected with the connecting seat.

[0022] Rotating the screw rod can move the connecting seat in the sliding hole, so as to adjust the distance between the pressing piece and the top rod, so that the pressing piece can press the top rod.

[0023] The utility model discloses a kind of sealing oil injection switching equipment with pressure, when disassembling oil plug, the clamping structure of sleeve is cooperated with oil plug, sleeve is reversely rotated, oil plug is loosened from the oil port of cable, at this time, sleeve or top rod can be used to adsorb oil plug, and drive oil plug to move to mounting hole, and oil is injected to the oil cavity of cable through mounting hole by injection hole and mounting hole;When installing oil plug, oil cavity has been injected, and oil cavity is in positive pressure state, top rod is used to move to the oil port of cable by oil plug, when oil plug moves to oil port, sleeve is clamped with oil plug, sleeve is forwardly rotated, and oil plug can be connected with oil port. DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creating labor.

[0025] Figure 1 It is the structure diagram of the sealing oil injection switching equipment with pressure of the utility model embodiment 1;

[0026] Figure 2 It is the explosion drawing of the sealing oil injection switching equipment with pressure of the utility model embodiment 1;

[0027] Figure 3The sectional view of the pressurized sealing oil injection switching equipment of the embodiment 1 of the utility model;

[0028] Figure 4 The structure schematic view of the pressurized sealing oil injection switching equipment of the embodiment 2 of the utility model;

[0029] Figure 5 Another attitude diagram of the pressing mechanism of the embodiment 2 of the utility model.

[0030] Icon: 1, cable; 11, connecting groove; 2, oil plug; 10, mounting seat; 101, connecting hole; 102, sliding hole; 201, mounting hole; 202, injection and drainage hole; 203, buffer cavity; 210, tee head; 220, mounting sleeve; 30, sleeve; 301, positioning hole; 302, limiting block; 303, handle; 304, bayonet; 40, top rod; 410, positioning pin; 50, abutting piece; 601, first sealing ring; 602, second sealing ring; 603, third sealing ring; 710, connecting seat; 720, handle; 730, connecting rod; 741, swing arm; 742, pressing arm; 743, plane bearing; 810, screw rod; 820, mounting plate. Specific embodiments

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain attitude (as shown in the drawings), and if the certain attitude changes, the directional indications will also change accordingly.

[0033] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0035] Embodiment 1

[0036] Reference Figures 1-3 A pressure sealing oil injection switching device, comprising:

[0037] The mounting seat 10;

[0038] The tee pipe group is arranged on the mounting seat 10, one end of the tee pipe group is used for abutting against the cable 1, the tee pipe group is provided with a mounting hole 201 penetrating through the tee pipe group and an injection and drainage hole 202 communicating with the mounting hole 201, and the oil plug 2 of the cable 1 can be inserted into the mounting hole 201;

[0039] The sleeve 30 is matched with the mounting hole 201; the shaft end of the sleeve 30 is provided with a clamping structure and can drive the oil plug 2 to rotate through the clamping structure;

[0040] The top rod 40 passes through the sleeve 30 and is used for abutting against the oil plug 2; at least one of the sleeve 30 and the top rod 40 has a magnetic attraction capacity of attracting the oil plug 2;

[0041] The abutting piece 50 is movably arranged in the mounting seat 10, and the abutting piece 50 and the tee pipe group are used for clamping the cable 1 from the two radial sides.

[0042] Using the pressurized sealing oil injection adapter of this embodiment, the cable 1 is first clamped, that is, the cable 1 is placed horizontally between the tee assembly and the abutment 50. The abutment 50 is moved towards the tee assembly, so that the tee assembly and the abutment 50 clamp the cable 1. When removing the oil plug 2, the sleeve 30 is used to engage with the oil plug 2. The sleeve 30 is rotated in the opposite direction to loosen the oil plug 2 from the oil port of the cable 1. At this time, the sleeve 30 or the push rod 40 can be used. The oil plug 2 is adsorbed and moved into the mounting hole 201. Oil is injected into the oil cavity of the cable 1 through the injection hole 202 and the mounting hole 201. When the oil plug 2 is installed, the oil cavity has been filled with oil and is under positive pressure. The push rod 40 is used to push the oil plug 2 against the oil port of the cable 1. When the oil plug 2 moves to the oil port, the sleeve 30 is used to engage with the oil plug 2. Rotating the sleeve 30 in the forward direction will connect the oil plug 2 to the oil port.

[0043] It should be noted that the forward or reverse rotation mentioned here refers to the direction of rotation that tightens the oil plug 2 onto the cable 1 as the forward direction, and the direction of rotation that loosens the oil plug 2 from the cable 1 as the reverse direction.

[0044] In this embodiment, the mounting base 10 can be C-shaped, and the cable 1 can be moved from the notch of the mounting base 10 to between the tee assembly and the abutment 50.

[0045] A locating pin 410 can be installed at the end of the push rod 40 near the oil plug 2. The oil plug 2 has a countersunk groove that mates with the locating pin 410. The locating pin 410 is inserted into the countersunk groove of the oil plug 2, and then the push rod 40 moves the oil plug 2 toward the oil port. The end of the sleeve 30 near the cable 1 has a locating hole 301 for the locating pin 410 to pass through. The diameter of the locating hole 301 is smaller than the inner diameter of the sleeve 30. When the locating pin 410 is inserted into the countersunk groove, the shaft end of the sleeve 30 also abuts against the end face of the oil plug 2. At this time, the push rod 40 can rotate together with the sleeve 30, thereby tightening the oil plug 2 at the oil port position.

[0046] In this embodiment, the snap-fit ​​structure of the sleeve 30 can be a "I" or "+" shaped protrusion, and the oil plug 2 is provided with a groove that cooperates with the snap-fit ​​structure, so that the sleeve 30 can drive the oil plug 2 to rotate through the snap-fit ​​structure.

[0047] The tee assembly includes a tee head 210 and a mounting sleeve 220; the mounting base 10 is provided with a connecting hole 101; the tee head 210 is provided with a mounting hole 201 and a filling / draining hole 202; one end of the tee head 210 passes through the connecting hole 101 and is provided with an external thread; the mounting sleeve 220 is provided with an internal thread and is threadedly connected to the tee head 210; the mounting sleeve 220 is provided with an insertion hole for the sleeve 30 to pass through.

[0048] The three-way head 210 can be T-shaped or cross-shaped, and the mounting hole 201 and the connecting hole 101 can be perpendicular to each other. The part of the three-way head 210 where the mounting hole 201 is located passes through the connecting hole 101 and is screwed with the mounting sleeve 220, the outer diameter of the mounting sleeve 220 is larger than the diameter of the connecting hole 101, the mounting sleeve 220 is screwed on the three-way head 210, and the part of the three-way head 210 where the injection and drainage hole 202 is located and the mounting sleeve 220 clamp the mounting seat 10, thereby fixing the three-way head 210 on the mounting seat 10.

[0049] The end of the cable 1 close to the three-way head 210 has a connecting groove 11, the diameter of the connecting groove 11 is larger than the outer diameter of the part of the three-way head 210 where the mounting hole 201 is located, and the groove bottom of the connecting groove 11 is relatively flat, so that the three-way head 210 abuts against the cable 1.

[0050] The outer wall of the abutting piece 50 is provided with a thread, the mounting seat 10 is provided with a threaded hole matched with the abutting piece 50, and the cable 1 is provided with a clamping groove matched with the abutting piece 50. By rotating the abutting piece 50, the abutting piece 50 can be close to or away from the cable 1, so as to clamp the cable 1 in cooperation with the three-way head 210.

[0051] The outer side wall of the sleeve 30 is provided with a limiting block 302 with a diameter larger than the mounting hole 201 and the insertion hole, and the limiting block 302 is used to limit the axial movement of the sleeve 30, so as to avoid the sleeve 30 from being separated from the three-way head 210.

[0052] The sleeve 30 is provided with a handle 303, the outer wall of the handle 303 is provided with an anti-skid pattern, and when the sleeve 30 is screwed or unscrewed, the handle 303 can be held and rotated to improve the assembly speed and convenience.

[0053] The part of the sleeve 30 extending out of the mounting sleeve 220 can be provided with a clamping hole 304, and the clamping hole 304 is used to hold the sleeve 30 by a wrench or other tools, so as to provide sufficient force to the sleeve 30, so that the oil plug 2 is tightened or loosened from the tightened state.

[0054] The pressurized sealing oil injection adapter further comprises a first sealing ring 601, and the outer side of the top rod 40 is provided with a first ring groove for installing the first sealing ring 601, and the first sealing ring 601 is used to seal the gap between the top rod 40 and the sleeve 30.

[0055] The first sealing ring 601 can be located at the axial end of the sleeve 30, and during the oil injection process of the cable 1, if part of the oil enters the sleeve 30 from the positioning hole 301, the first sealing ring 601 can prevent the oil in the sleeve 30 from exuding, and the first sealing ring 601 can also prevent external air from entering the mounting hole 201 from the gap between the sleeve 30 and the top rod 40, so as to cause the oil cavity of the cable 1 to be mixed with air.

[0056] The pressure-sealed oil injection adapter further comprises a second sealing ring 602; the tee pipe group is provided with a second ring groove for installing the second sealing ring 602, the second sealing ring 602 is used for sealing the gap between the sleeve 30 and the sidewall of the mounting hole 201, and the second sealing ring 602 can prevent the oil from leaking out from the joint between the sleeve 30 and the tee head 210.

[0057] The pressure-sealed oil injection adapter further comprises a third sealing ring 603; the tee pipe group is provided with a third ring groove for installing the third sealing ring 603 at one end abutting against the cable 1, and the third sealing ring 603 is used for sealing the gap between the tee pipe group and the cable 1.

[0058] The third sealing ring 603 is located at the axial end surface of the tee head 210 close to the cable 1, and the third sealing ring 603 can prevent the oil from leaking out from the contact position between the tee head 210 and the cable 1, and also prevent the external air from entering the oil cavity.

[0059] The tee pipe group is provided with a buffer cavity 203 at the joint between the mounting hole 201 and the injection and drainage hole 202, and the diameters of the mounting hole 201 and the injection and drainage hole 202 are both smaller than the diameter of the buffer cavity 203.

[0060] When the oil cavity of the cable 1 is drained, a large amount of oil enters the mounting hole 201 and is drained from the injection and drainage hole 202, at this time, the high-speed flowing oil will be turned by the wall of the buffer cavity 203 to consume the kinetic energy of the oil, so as to avoid that the speed of the oil flowing out of the injection and drainage hole 202 is too large, resulting in that the pressure at the joint between the injection and drainage hole 202 and the oil pipe is too large.

[0061] In the embodiment, the inner wall of the buffer cavity 203 can be provided with a spiral groove, the spiral groove surrounds the axis of the mounting hole 201, and the spiral angle can be 30°-45°. When the oil is drained, the sleeve 30 drives the oil plug 2 to move into the buffer cavity 203, and when the oil is sprayed into the tee head 210 from the mounting hole 201, the oil forms a vortex under the guidance of the spiral groove, so as to convert part of the axial kinetic energy of the oil into tangential kinetic energy, which can avoid that the oil directly impacts the oil plug 2 in the axial direction, and also can avoid that the oil leaks from the joint between the sleeve 30 and the tee head 210 due to the large flow rate. The spiral groove can effectively disperse the impact pressure of the oil in the axial direction of the sleeve 30.

[0062] Embodiment 2

[0063] Reference Figure 4 and Figure 5The pressure sealing and oil filling adapter further comprises a pressing mechanism; the pressing mechanism comprises a connecting seat 710, a handle 720, a connecting rod 730 and a pressing part; the connecting rod 730 is rotationally connected with the connecting seat 710 at point A, and the connecting rod 730 is rotationally connected with the handle 720 at point B; the handle 720 is rotationally connected with the pressing part at point C; the pressing part is rotationally connected with the connecting seat 710 at point D; by rotating the handle 720, the end of the pressing part away from the handle 720 is away from the jack 40 or axially presses the jack 40.

[0064] In the embodiment, when the operator tightens the oil plug 2 by the jack 40 and the sleeve 30, one hand is needed to axially press the jack 40 to move the oil plug 2 to the oil port, and the other hand is needed to hold the sleeve 30. If the jack 40 is pressed by the pressing mechanism, one hand is released, and the tightening of the oil plug 2 is more convenient.

[0065] The specific principle of the pressing mechanism is as follows:

[0066] Reference Figure 4 and Figure 5 The handle 720 is rotated counterclockwise from top to bottom, the connecting rod 730 is rotated clockwise around point A, and the pressing part is rotated clockwise around point D under the driving of the handle 720. When the three points A, B and C are collinear, the pressing part is at the lowest position and axially presses the jack 40. Conversely, the handle 720 is rotated clockwise, the connecting rod 730 is rotated counterclockwise around point A, and the pressing part is rotated counterclockwise around point D under the driving of the handle 720, so as to be separated from the jack 40.

[0067] In the embodiment, the pressing part comprises a swing arm 741, a pressing arm 742 and a plane bearing 743; the swing arm 741 is rotationally connected with the connecting seat 710 at point D, and the swing arm 741 is rotationally connected with the handle 720 at point C; the pressing arm 742 is arranged on the swing arm 741, and the pressing arm 742 can axially abut against the jack 40 when the three points A, B and C are collinear; the plane bearing 743 is arranged on the pressing arm 742 and used to contact the jack 40. When the pressing arm 742 presses the jack 40 through the plane bearing 743, the jack 40 rotates together with the sleeve 30 by rotating the oil plug 2, and the jack 40 rotates relative to the pressing arm 742 through the plane bearing 743.

[0068] The pressure sealing and oil filling adapter further comprises a lifting mechanism, and the lifting mechanism comprises a screw rod 810; the mounting seat 10 is provided with a sliding hole 102 having an axis parallel to the axis of the sleeve 30; the connecting seat 710 is slidingly arranged in the sliding hole 102, and the connecting seat 710 is provided with a threaded hole; one end of the screw rod 810 is rotationally connected with the mounting seat 10, and the other end of the screw rod 810 is threadedly matched with the connecting seat 710.

[0069] The rotating screw 810 is used to move the connecting seat 710 in the sliding hole 102, so as to adjust the distance between the pressing part and the ejector pin 40, and make the pressing part press the ejector pin 40.

[0070] The mounting plate 820 is bolted on the mounting seat 10, and the screw 810 is rotationally connected with the mounting plate 820, so that the screw 810 is rotationally connected with the mounting seat 10, and the mounting plate 820 axially limits the screw 810. A knob is arranged on the position of the screw 810 outside the sliding hole 102, so as to be gripped.

[0071] The sliding hole 102 is a rectangular hole, and the connecting seat 710 is a square column, so that the connecting seat 710 does not rotate with the screw 810 when the screw 810 rotates.

[0072] The above is only optional embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the utility model are included in the patent protection range of the utility model.

Claims

1. A pressurized seal oil filling adapter apparatus, characterized by, The utility model provides a kind of cable installation device, including: Mounting seat; Three-way pipe group, one end of the three-way pipe group is used to abut cable, the three-way pipe group is provided with installation hole passing through the three-way pipe group and injection and drainage hole communicated with the installation hole, wherein the oil plug of cable can be inserted into the installation hole; Sleeve, the sleeve is matched with the installation hole;The shaft end of the sleeve is provided with clamping structure and can drive oil plug to rotate by the clamping structure; Jack, the jack passes through the sleeve and is used to abut oil plug;At least one of the sleeve and the jack has the magnetic attraction capacity of adsorbing oil plug; Abutting piece, the abutting piece is movably arranged in the mounting seat, and the abutting piece and the three-way pipe group are used to clamp cable from the radial two sides.

2. The pressurized seal oil injection adapter apparatus of claim 1, wherein, The three-way pipe group includes a tee and a mounting sleeve;The mounting seat is provided with a connecting hole;The tee is provided with the installation hole and the injection and drainage hole;One end of the tee passes through the connecting hole and is provided with external threads;The mounting sleeve is provided with internal threads, and the mounting sleeve is threadedly connected with the tee;The mounting sleeve is provided with a plug hole for the sleeve to pass through.

3. The pressurized seal oil injection adapter apparatus of claim 2, wherein, The outer sidewall of the sleeve is provided with a limiting block having a diameter greater than the installation hole and the plug hole.

4. The pressurized seal oil injection adapter apparatus of claim 1, wherein, The sleeve is provided with a handle, and an outer wall of the handle is provided with anti-slip lines.

5. The pressurized seal oil injection adapter apparatus of claim 1, wherein, It further includes a first sealing ring;The outer side of the jack is provided with a first ring groove for mounting the first sealing ring, and the first sealing ring is used to seal the gap between the jack and the sleeve.

6. The pressurized seal oil injection adapter apparatus of claim 1, wherein, It further includes a second sealing ring;The three-way pipe group is provided with a second ring groove for mounting the second sealing ring, and the second sealing ring is used to seal the gap between the sleeve and the sidewall of the installation hole.

7. The pressurized seal oil injection adapter apparatus of claim 1, wherein, It further includes a third sealing ring;One end of the three-way pipe group for abutting the cable is provided with a third ring groove for mounting the third sealing ring, and the third sealing ring is used to seal the gap between the three-way pipe group and the cable.

8. The pressurized seal oil injection adapter apparatus of claim 1, wherein, The three-way pipe group is provided with a buffer cavity at the connection between the installation hole and the injection and drainage hole, and the diameter of the installation hole and the diameter of the injection and drainage hole are both smaller than the diameter of the buffer cavity.

9. The pressurized seal oil injection adapter apparatus of claim 1, wherein, It further includes a pressing mechanism;The pressing mechanism includes a connecting seat, a handle, a connecting rod and a pressing piece; The connecting rod is rotationally connected with the connecting seat at point A, and the connecting rod is rotationally connected with the handle at point B;The handle is rotationally connected with the pressing piece at point C;The pressing piece is rotationally connected with the connecting seat at point D;By rotating the handle, the end of the pressing piece away from the handle is away from the jack or axially presses the jack.

10. The pressurized seal oil injection adapter apparatus of claim 9, wherein, It further includes a lifting mechanism, and the lifting mechanism includes a screw rod;The mounting seat is provided with a sliding hole having an axis parallel to the axis of the sleeve;The connecting seat is slidingly arranged in the sliding hole, and the connecting seat is provided with a threaded hole;One end of the screw rod is rotationally connected with the mounting seat, and the other end of the screw rod is threadedly matched with the connecting seat.

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