A hydraulic sealing protection box

Abstract

The present invention relates to a hydraulic sealing protection box, comprising an upper box body, a lower box body and a hydraulic sealing system, wherein the upper box body and the lower box body are both box bodies with one end open, and the open ends of the two are butted against each other and detachably connected, and a plurality of inlet / outlet holes are arranged at intervals at the butt joint of any one side of the upper box body and the lower box body, and sealing grooves are respectively arranged in a corresponding manner at the open ends of the upper box body and the lower box body, and the sealing grooves pass along the hole walls of the inlet / outlet holes, and the hydraulic sealing system comprises two flexible oil-filled and expandable hydraulic pipelines and a hydraulic filling / returning component, and the two hydraulic pipelines are respectively embedded in the sealing grooves of the upper box body and the lower box body, and the inlet / outlet ports of the hydraulic filling / returning component are respectively connected to the two ends of the two hydraulic pipelines. Advantages: simple and reasonable structural design, good waterproof performance, and can effectively meet the requirements of moisture-proof, waterproof, and even direct use in water of the power socket or switch placed in the box.

Description

Technical Field

[0001] The invention relates to the technical field of box body sealing, and in particular to a hydraulic sealing protection box. Background Art

[0002] At present, most of the industrial and household power sockets used in the market cannot be waterproof or used in water. Especially in a humid environment, the safety of the power socket cannot be guaranteed. Therefore, designing and using a simple device to meet the needs of moisture-proof, waterproof and even direct use of the power socket in water is a problem that must be solved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a hydraulic sealing protection box, which effectively overcomes the defects of the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A hydraulic sealing protection box comprises an upper box body, a lower box body and a hydraulic sealing system, wherein the upper box body and the lower box body are both box bodies with one end open, and the open ends of the two are butted against each other and detachably connected, a plurality of line inlet holes are arranged at intervals at the butt joint on either side of the upper box body and the lower box body, and sealing grooves are respectively arranged correspondingly at the open ends of the upper box body and the lower box body, and the sealing grooves pass along the bottom walls of the line inlet holes, and the hydraulic sealing system comprises two flexible oil-filled and expandable hydraulic pipelines and a hydraulic filling / returning liquid component, the two hydraulic pipelines are respectively surrounded and embedded in the sealing grooves of the upper box body and the lower box body, and the oil inlet / outlet ports of the hydraulic filling / returning liquid component are respectively connected and communicated with the two ends of the two hydraulic pipelines.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the upper box body and the lower box body are rectangular box bodies that match each other, and the outer sides of one end of the two are hinged, and the outer sides of the other ends are detachably connected through a locking assembly, and the multiple wire entry holes are arranged on one long side of the upper box body and the lower box body.

[0008] Furthermore, the wire entry hole is a circular hole, and the open ends of the upper box body and the lower box body are respectively provided with a plurality of semicircular notches, and two corresponding notches are butted together to form the wire entry hole.

[0009] Furthermore, the locking assembly is a combination of a snap lock and a matching lock seat, and the snap lock and the lock seat are respectively arranged on the outer side walls of the other ends of the upper box body and the lower box body.

[0010] Furthermore, each of the above-mentioned notches of the above-mentioned upper box body and / or the lower box body is provided with a vertical assembly groove at a position corresponding to the inner and outer sides of the above-mentioned sealing groove, and a sliding protective door that can slide and retract up and down is installed in each of the above-mentioned assembly grooves, and the above-mentioned hydraulic pipeline clamp is arranged between the above-mentioned sliding protective doors on the corresponding inner and outer sides.

[0011] Furthermore, the hydraulic filling / returning assembly comprises a square frame, an upper push rod, a lower push rod, an upper oil bag and a lower oil bag, the upper oil bag and the lower oil bag are respectively provided with the above-mentioned oil inlet / outlet ports, the upper box body and the lower box body inner box top wall are respectively provided with upper hydraulic tank and lower hydraulic tank corresponding to each other, the box top wall of the upper box body is penetrated with an upper hole position with an inner sealing ring connected to the upper hydraulic tank, the inner sealing ring passes through the upper hole position vertically from top to bottom and slides with each other, the lower end of the upper push rod is connected to the upper oil bag through an upper elastic extrusion piece, the two ends of the hydraulic pipeline at the open end of the upper box body are respectively extended into the upper hydraulic tank, and are connected and communicated with the oil inlet / outlet of the upper oil bag, the box top wall of the lower box body is penetrated with a lower hole position with an inner sealing ring connected to the lower hydraulic tank, the lower push rod passes through the inner sealing ring of the lower hole position vertically from bottom to top and slides with each other, and the The upper end is connected with the above-mentioned lower oil bag through a lower elastic extrusion piece, and the two ends of the hydraulic pipeline at the open end of the above-mentioned lower box body respectively extend into the above-mentioned lower hydraulic pool, and are connected and communicated with the inlet / outlet oil port of the above-mentioned oil bag. One end of the above-mentioned frame is rotatably connected with the lower end of the above-mentioned lower push rod, and the other end can be rotated upward around the connection between the two to a vertical position and framed on the outside of the other end of the above-mentioned upper box body and the lower box body. The other end of the above-mentioned frame is provided with an assembly notch for accommodating the above-mentioned upper push rod at the position corresponding to the above-mentioned upper push rod. When the above-mentioned frame is flipped upward to a vertical state, the above-mentioned upper push rod is placed in the above-mentioned assembly notch, and the upper part of the other end of the above-mentioned upper box body is provided with a positioning structure for locking and cooperating with the other end of the above-mentioned frame flipped to a vertical state. External force drives the above-mentioned upper push rod to move up and down relative to the above-mentioned frame, thereby driving the above-mentioned upper push rod and the lower push rod to move closer or farther relative to each other, thereby squeezing or releasing the above-mentioned upper oil bag and the lower oil bag.

[0012] Furthermore, the above-mentioned positioning structure includes a limit block and a support bracket, the above-mentioned limit block is integrally formed and arranged on the upper part of the other end of the above-mentioned upper box body, and when the above-mentioned frame is flipped upward to be vertical, the other end of the above-mentioned frame frame is abutted against the side end of the above-mentioned limit block, and the above-mentioned support bracket is abutted against the side end of the above-mentioned limit block, and a threaded hole is penetrated through it, and the upper end outer surface of the above-mentioned upper push rod is provided with a threaded section corresponding to the above-mentioned threaded hole, the upper end threaded section of the above-mentioned upper push rod passes through the threaded hole and screws together, and the upper part of the above-mentioned support bracket away from the above-mentioned limit block is protruded with a hook portion, and the above-mentioned frame can be flipped upward to be vertical, and the other end is placed above the above-mentioned support bracket corresponding to the area between the above-mentioned hook portion and the limit block, and in this state, the above-mentioned upper push rod is twisted by external force, and the above-mentioned support bracket can move up and down along the side end of the above-mentioned limit block, so as to move and lock or separate with the other end of the above-mentioned frame.

[0013] Furthermore, the upper end of the upper push rod can be turned upside down and is provided with a plate-shaped handle for driving it to rotate, and the upper end of the limit block is provided with a groove matching the handle, and the handle can be turned over to be embedded in the groove.

[0014] Furthermore, the upper elastic extrusion member and the lower elastic extrusion member both include a pressure plate and a spring, the lower end of the upper push rod and the upper end of the lower push rod are elastically connected to the corresponding pressure plate through springs, and the upper oil bag and the lower oil bag are respectively arranged at one end of the corresponding pressure plate away from the upper push rod or the lower push rod.

[0015] Furthermore, the upper push rod and the lower push rod are both provided with connecting parts sealedly connected to the corresponding inner walls of the upper hydraulic tank and the lower hydraulic tank, and the connecting parts can move up and down along the corresponding inner walls of the upper hydraulic tank or the lower hydraulic tank.

[0016] The beneficial effects of the present invention are: simple and reasonable structural design, good waterproof performance, and can effectively meet the needs of the switch being moisture-proof and waterproof, and even being used directly in water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the hydraulic sealing protection box of the present invention;

[0018] Figure 2 It is a structural cross-sectional view of the hydraulic sealing protection box of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the upper box body of the hydraulic sealing protection box of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the lower box body of the hydraulic sealing protection box of the present invention;

[0021] Figure 5It is a structural schematic diagram of the cooperation between the frame and the positioning structure in the hydraulic sealing protection box of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Upper box body, 2. Lower box body, 3. Hydraulic pipeline, 4. Locking assembly, 5. Sliding protection door, 6. Frame, 7. Upper push rod, 8. Lower push rod, 9. Upper oil bag, 10. Lower oil bag, 11. Upper hydraulic tank, 12. Lower hydraulic tank, 13. Handle, 14. Connecting part, 18. Limit block, 19. Support bracket, 61. Assembly notch, 71. Upper elastic extrusion part, 81. Lower elastic extrusion part, 191. Hooking part. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] Example: Figures 1 to 4 As shown, the hydraulic sealing protection box of this embodiment includes an upper box body 1, a lower box body 2 and a hydraulic sealing system. The upper box body 1 and the lower box body 2 are both box bodies with one end open, and the open ends of the two are butted against each other and detachably connected. A plurality of wire inlet holes are provided at intervals at the butt joint on any side of the upper box body 1 and the lower box body 2. The open ends of the upper box body 1 and the lower box body 2 are respectively provided with sealing grooves corresponding to the ends thereof, and the sealing grooves pass along the bottom walls of the wire inlet holes. The hydraulic sealing system includes two flexible, oil-filled and expandable hydraulic pipelines 3 and a hydraulic filling / returning liquid component. The two hydraulic pipelines 3 are respectively embedded in the sealing grooves of the upper box body 1 and the lower box body 2, and the oil inlet / outlet ports of the hydraulic filling / returning liquid component are respectively connected and communicated with the two ends of the two hydraulic pipelines 3.

[0026] During use, the power socket is placed and fixed in the lower box body 2, and its power cord is led out from one of the wire entry holes. The power plugs of multiple other components are plugged into the power socket, and the leads are led out from other wire entry holes respectively until cables are passed through all the wire entry holes, so that one hole and one line are achieved. Next, the upper box body 1 and the lower box body 2 are tightly connected into a whole. During the connection process, the two hydraulic pipelines 3 are hydraulically flushed through the hydraulic sealing system to expand the two hydraulic pipelines 3. The two expanded hydraulic pipelines 3 are tightly connected to each other, so that the butt ends of the upper box body 1 and the lower box body 2 achieve a higher level of sealing connection. At the same time, the two hydraulic pipelines 3 are tightly wrapped and pressed at the wire entry hole to tighten the cables that are passed through, so that the wire entry hole also has a higher waterproof performance. Finally, a higher overall waterproof performance is achieved, which can be suitable for humid environments, or used directly in water. The entire structural design is simple and reasonable, with good waterproof performance, which can effectively meet the needs of the switch being moisture-proof, waterproof, and even used directly in water.

[0027] It should be noted that when not all the cable entry holes have cables passing through them, in the cable entry holes where no cables pass through them, the two hydraulic pipelines 3 will also expand to be in close contact (fit) with each other, so that the vacant cable entry holes can be in a sealed state even when no cables pass through them.

[0028] As a preferred embodiment, the upper box body 1 and the lower box body 2 are rectangular box bodies that match each other, and the outer sides of one end of the two are hinged, and the outer sides of the other ends are detachably connected through a locking assembly 4, and the multiple wire entry holes are arranged on one long side of the upper box body 1 and the lower box body 2.

[0029] In this embodiment, the upper box body 1 and the lower box body 2 adopt a conventional rectangular design, which has a beautiful appearance, is easy to process, and is convenient to disassemble and assemble. At the same time, the upper box body 1 and the lower box body 2 adopt a flip opening and closing operation mode, which is simple and convenient to use.

[0030] The above-mentioned wire entry holes can be customized and processed according to the number of adaptations required, and the specific selection can be based on the actual application.

[0031] As a preferred embodiment, the locking assembly 4 is a combination of a hasp lock and a matching lock seat, and the hasp lock and the lock seat are respectively arranged on the outer side walls of the other ends of the upper box body 1 and the lower box body 2. Specifically, a hasp is arranged on the outer side of the other end of the lower box body 2, and a hasp seat is installed at a corresponding position on the outer side of the other end of the upper box body 1. The two can be locked together after closing. The specific usage method is the existing technology and will not be repeated here.

[0032] As a preferred embodiment, the wire entry hole is a circular hole, and the open ends of the upper box body 1 and the lower box body 2 are respectively provided with a plurality of semicircular notches, and two corresponding notches are butted together to form the wire entry hole.

[0033] In this embodiment, the cable entry hole is designed as a round hole, which is easy to thread the cable. At the same time, the processing difficulty is low, and it is easy to use two hydraulic pipelines 3 to achieve effective sealing of the cable.

[0034] As a preferred embodiment, each of the above-mentioned notches of the upper box body 1 and / or the lower box body 2 is provided with a vertical assembly groove corresponding to the inner and outer sides of the above-mentioned sealing groove, and each of the above-mentioned assembly groove is provided with a sliding protective door 5 which can slide and retract up and down, and the above-mentioned hydraulic pipeline 3 is clamped between the above-mentioned sliding protective doors 5 on the corresponding inner and outer sides.

[0035] In this embodiment, the design of the sliding protective door 5 is very clever. By arranging the sliding protective door 5 on both sides of the wire inlet hole, the hydraulic pipeline 3 can expand at the wire inlet hole toward the corresponding upper box body 1 or lower box body 2 under the restriction of the sliding protective doors 5 on both sides when expanded by flushing, thereby making the wire inlet hole have a higher waterproof performance.

[0036] It should be noted that: when each of the above-mentioned notches of the upper box body 1 and the lower box body 2 is provided with vertical assembly grooves at positions corresponding to both inner and outer sides of the above-mentioned sealing groove, the sliding protection doors 5 on both sides of the corresponding notches correspond one to another up and down.

[0037] As a preferred embodiment, the hydraulic filling / returning assembly comprises a square frame 6, an upper push rod 7, a lower push rod 8, an upper oil bag 9 and a lower oil bag 10, the upper oil bag 9 and the lower oil bag 10 are respectively provided with the above-mentioned oil inlet / outlet ports, the upper box body 1 and the lower box body 2 are respectively provided with upper and lower corresponding upper hydraulic tanks 11 and lower hydraulic tanks 12 on the inner box top walls, the upper box body 1 is penetrated with an upper hole provided with an inner sealing ring connected to the upper hydraulic tank 11, and vertically penetrated from top to bottom The lower end of the upper push rod 7 is connected to the upper oil bag 9 through the inner sealing ring of the upper hole and slides with each other. The lower end of the upper push rod 7 is connected to the upper oil bag 9 through the upper elastic extrusion piece 71. The two ends of the hydraulic pipeline 3 at the open end of the upper box body 1 are respectively extended into the upper hydraulic pool 11, and are connected and communicated with the inlet / outlet of the upper oil bag 9. The top wall of the lower box body 2 is penetrated with a lower hole with an inner sealing ring connected to the lower hydraulic pool 12. The lower push rod 8 vertically passes through the inner sealing ring of the lower hole from bottom to top and slides with each other. The upper end of the frame 6 is connected to the lower oil bag 10 through the lower elastic extrusion piece 81, and the two ends of the hydraulic pipeline 3 at the open end of the lower box body 2 are respectively extended into the lower hydraulic tank 12, and are connected and communicated with the inlet / outlet of the lower oil bag 10. One end of the frame 6 is rotatably connected to the lower end of the lower push rod 8, and the other end can be rotated upward around the connection between the two to be vertical and framed on the outside of the other end of the upper box body 1 and the lower box body 2. The other end of the frame 6 is provided with a position corresponding to the upper push rod 7. An assembly notch 61 is used to accommodate the upper ejector rod 7. When the frame 6 is flipped upward to a vertical state, the upper ejector rod 7 is placed in the assembly notch 61. The upper portion of the other end of the upper box body 1 is provided with a positioning structure for lockingly cooperating with the other end of the frame 6 flipped to a vertical state. External force drives the upper ejector rod 7 to move up and down relative to the frame 6, thereby driving the upper ejector rod 7 and the lower ejector rod 8 to move closer or farther relative to each other, thereby squeezing or releasing the upper oil bag 9 and the lower oil bag 10.

[0038] During use, after the power switch is connected to the plug and placed in the lower box body 2, the upper box body 1 and the lower box body 2 are first flipped and closed, and then the frame 6 is flipped upward to be vertical, so that the upper end of the upper push rod 7 is just stuck in the assembly notch 61 on the frame 6 (and the two can move up and down relative to each other). Next, the external force drives the upper push rod 7, so that the upper push rod 7 and the frame 6 move up and down relative to each other, that is, the lower push rod 8 and the upper push rod 7 move relative to each other. Specifically, the two move closer or farther away from each other, and in the process of their relative movement closer, the two synchronously squeeze the corresponding upper oil bag 9 and lower oil bag 10 through the corresponding upper elastic extrusion piece 71 and the lower elastic extrusion piece 81, so as to realize the synchronous filling of the two hydraulic pipelines 3, and finally realize the sealing operation of the box body. The overall operation is relatively simple, fast and convenient.

[0039] It should be noted that the hydraulic filling / returning assembly is cleverly designed. In the process of screwing the upper ejector rod 7, the upper ejector rod 7 and the lower ejector rod 8 move relative to each other synchronously. That is to say, the upper oil bag 9 and the lower oil bag 10 are squeezed synchronously, and the squeezing force and state of the two are close, so that the filling states of the two hydraulic pipelines 3 are also close, that is, the filling sources of the two hydraulic pipelines 3 are uniform and close, until the two are in close contact, the force is relatively uniform, and the sealing performance is excellent.

[0040] As a preferred embodiment, Figure 5 As shown, the positioning structure includes a limit block 18 and a support bracket 19. The limit block 18 is integrally formed and arranged at the upper part of the other end of the upper box body 1. When the frame 6 is flipped upward to be vertical, the other end of the frame 6 is abutted against the side end of the limit block 18. The support bracket 19 is abutted against the side end of the limit block 18, and a threaded hole is penetrated therethrough. The upper end outer surface of the upper push rod 7 is provided with a threaded section corresponding to the threaded hole. The upper end threaded section of the upper push rod 7 The support bracket 19 passes through the threaded hole and is screwed together. A hook portion 191 is protruded from the upper portion of one end away from the limit block 18. The frame 6 can be flipped upward to be vertical, and the other end is placed above the support bracket 19 corresponding to the area between the hook portion 191 and the limit block 18. In this state, the upper push rod 7 is twisted by external force, and the support bracket 19 can move up and down along the side end of the limit block 18, thereby moving to engage, lock or separate with the other end of the frame 6.

[0041] In this embodiment, the design of the limit block 18 can enable the frame 6 to maintain good lateral positioning when it is flipped upward to a vertical position. At the same time, the support bracket 19 can be used to lock the other end of the frame 6. Specifically, when the upper push rod 7 is rotated downward (that is, the upper push rod 7 moves downward to squeeze the corresponding upper oil bag 9 to seal), the support bracket 19 moves upward relative to the upper push rod 7, so that the support bracket 19 and the frame 6 are more and more closely matched, completing the locking (hooking or snapping) of the two. When the upper push rod 7 is screwed upward (that is, the upper oil bag 9 returns oil to release the box body seal), the support bracket 19 moves downward relative to the upper push rod 7, gradually disengaging from the other end of the frame 6, until it is completely disengaged, and the frame 6 can be freely flipped and moved. The overall design is very clever, and the support bracket 19 can automatically be locked or unlocked with the other end of the frame 6 when the upper push rod 7 is screwed in.

[0042] It should be noted that the side end of the limit block 18 that corresponds to the frame 6 and the side end of the hook portion 191 close to it are parallel to each other, and the distance between the two should be slightly wider than the width of the other end of the frame 6 (the frame 6 is a rectangular frame structure) to ensure that the frame 6 can be smoothly inserted into the area between the hook portion 191 and the side end of the limit block 18.

[0043] As a preferred embodiment, the upper end of the upper push rod 7 can be flipped up and down and is provided with a plate-shaped handle 13 for driving it to rotate. The upper end of the limit block 18 is provided with a groove matching the handle 13, and the handle 13 can be flipped to be embedded in the groove.

[0044] In this embodiment, the handle 13 can be used to facilitate the screwing operation of the upper push rod 7. At the same time, the design of the groove facilitates the handle 13 to be flipped down and embedded after screwing in, so that the entire box body can be stably used without the handle 13 protruding and affecting normal use.

[0045] As a preferred embodiment, the upper hydraulic tank 11 and the lower hydraulic tank 12 are respectively arranged inside the other end of the upper box body 1 and the lower box body 2, and the relatively close ends of the two are respectively open, and sealing plates are detachably installed at the open ends. The ends of the upper hydraulic tank 11 and the lower hydraulic tank 12 that are close to each other abut against each other after the open ends of the upper box body 1 and the lower box body 2 are docked, and the two ends of the two hydraulic pipelines 3 are respectively led out inward at the other end of the upper box body 1 or the lower box body 2, and penetrate into the corresponding upper hydraulic tank 11 and the lower hydraulic tank 12.

[0046] In this embodiment, the upper hydraulic tank 11 and the lower hydraulic tank 12 are specifically integrally formed on the inner wall of the other end of the upper box body 1 and the lower box body 2, and the layout is relatively reasonable. At the same time, the positions of the hydraulic pipelines of the upper hydraulic tank 11 and the lower hydraulic tank 12 correspond to each other, that is, after the two are close to each other and abut against each other, the hydraulic pipelines at the positions of the two are squeezed and sealed against each other, so that the box body can have good waterproof sealing performance at any position.

[0047] As a preferred embodiment, the upper elastic extrusion member 71 and the lower elastic extrusion member 81 both include a pressure plate and a spring, the lower end of the upper push rod 7 and the upper end of the lower push rod 8 are elastically connected to the corresponding pressure plate through springs, and the upper oil bag 9 and the lower oil bag 10 are respectively arranged at the end of the corresponding pressure plate away from the upper push rod 7 or the lower push rod 8.

[0048] In this embodiment, the upper elastic extrusion member 71 and the lower elastic extrusion member 81 have a simple structural design. By utilizing the cooperation between the spring and the pressure plate, the force exerted by the upper push rod 7 or the lower push rod 8 on the corresponding pressure plate can be elastically buffered under the action of the spring, thereby achieving elastic extrusion of the corresponding upper oil bag 9 or the lower oil bag 10 by the pressure plate, avoiding the phenomenon of bag rupture and leakage caused by hard extrusion, and the two cooperate more closely.

[0049] As a preferred embodiment, the upper push rod 7 and the lower push rod 8 are both provided with a connecting portion 14 sealedly connected to the corresponding inner walls of the upper hydraulic tank 11 and the lower hydraulic tank 12, and the connecting portion can move up and down along the corresponding inner wall of the upper hydraulic tank 11 or the lower hydraulic tank 12.

[0050] In this embodiment, the connecting portion 14 has two functions: one is to enable the upper push rod 7 and the lower push rod 8 to move along the corresponding inner wall of the hydraulic pool to avoid the phenomenon of unstable force caused by the push rod tilting; the other is to prevent the external liquid from leaking into the hydraulic pool through the holes where the upper push rod 7 and the lower push rod 8 pass through, thereby affecting the normal and stable use of the entire device.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic sealing protection box, characterized in that: The invention comprises an upper box body (1), a lower box body (2) and a hydraulic sealing system, wherein the upper box body (1) and the lower box body (2) are both box bodies with one end open, and the open ends of the two are butted against each other and detachably connected, a plurality of inlet / outlet holes are arranged at intervals at the butt joint of any one side of the upper box body (1) and the lower box body (2), and sealing grooves are respectively arranged in a corresponding manner at the open ends of the upper box body (1) and the lower box body (2), and the sealing grooves pass along the hole walls of the inlet / outlet holes, and the hydraulic sealing system comprises two flexible hydraulic pipelines (3) and A hydraulic filling / returning assembly, wherein the two hydraulic pipelines (3) are respectively embedded in the sealing grooves of the upper box body (1) and the lower box body (2), and the oil inlet / outlet ports of the hydraulic filling / returning assembly are respectively connected to and communicated with the two ends of the two hydraulic pipelines (3). The upper box body (1) and the lower box body (2) are rectangular boxes that match each other, and the outer sides of one end of the two are hinged, and the outer sides of the other ends are detachably connected through a locking assembly (4), and a plurality of the inlet / outlet holes are arranged on one long side of the upper box body (1) and the lower box body (2);The hydraulic filling / returning assembly comprises a square frame (6), an upper push rod (7), a lower push rod (8), an upper oil bag (9) and a lower oil bag (10), wherein the upper oil bag (9) and the lower oil bag (10) are respectively provided with the oil inlet / outlet ports, and the inner top walls of the upper box body (1) and the lower box body (2) are respectively provided with upper hydraulic pools (11) and lower hydraulic pools (12) corresponding to each other, and the top wall of the upper box body (1) is penetrated by an upper hole provided with an inner sealing ring and connected to the upper hydraulic pool (11), and the upper push rod (7) vertically passes through the upper hydraulic pool (11) from top to bottom. The inner sealing ring of the hole position and the lower end of the upper push rod (7) are connected to the upper oil bag (9) through the upper elastic extrusion piece (71). The two ends of the hydraulic pipeline (3) at the open end of the upper box body (1) extend into the upper hydraulic pool (11) respectively and are connected and communicated with the inlet / outlet of the upper oil bag (9). The top wall of the lower box body (2) is penetrated by a lower hole position with an inner sealing ring and communicated with the lower hydraulic pool (12). The lower push rod (8) vertically passes through the inner sealing ring of the lower hole position from bottom to top and slides with each other. The end is connected to the lower oil bag (10) through a lower elastic extrusion piece (81), the two ends of the hydraulic pipeline (3) at the open end of the lower box body (2) are respectively extended into the lower hydraulic pool (12), and are connected and communicated with the inlet / outlet of the lower oil bag (10), one end of the frame (6) is rotatably connected to the lower end of the lower push rod (8), and the other end can be rotated upward around the connection between the two to be vertical and framed on the outside of the other end of the upper box body (1) and the lower box body (2), and the other end of the frame (6) is provided with a position corresponding to the position of the upper push rod (7) for accommodating The assembly notch (61) of the upper push rod (7) is such that when the frame (6) is turned upward to a vertical state, the upper push rod (7) is placed in the assembly notch (61), and the upper part of the other end of the upper box body (1) is provided with a positioning structure for locking and matching with the other end of the frame (6) turned to a vertical state, and an external force drives the upper push rod (7) to move up and down relative to the frame (6), thereby driving the upper push rod (7) and the lower push rod (8) to move closer or farther relative to each other, thereby squeezing or releasing the upper oil bag (9) and the lower oil bag (10). ; 2. A hydraulic sealing protection box according to claim 1, characterized in that: The inlet / outlet wire hole is a circular hole, and the open ends of the upper box body (1) and the lower box body (2) are respectively provided with a plurality of semicircular notches, and two corresponding notches are butted together to form the inlet / outlet wire hole.

3. The hydraulic sealing protection box according to claim 1, characterized in that: The locking assembly (4) is a combination of a snap lock and a matching lock seat, and the snap lock and the lock seat are respectively arranged on the outer side walls of the other ends of the upper box body (1) and the lower box body (2).

4. A hydraulic sealing protection box according to claim 2, characterized in that: Each notch of the upper box body (1) and / or the lower box body (2) is provided with a vertical assembly groove at a position corresponding to the inner and outer sides of the sealing groove, and a sliding protective door (5) that can slide and retract upward and downward is installed in each assembly groove, and the hydraulic pipeline (3) is clamped between the corresponding inner and outer sides of the sliding protective door (5).

5. The hydraulic sealing protection box according to claim 1, characterized in that: The positioning structure comprises a limit block (18) and a support bracket (19), wherein the limit block (18) is integrally formed and arranged at the upper part of the other end of the upper box body (1), and when the frame (6) is flipped upward to be vertical, the other end of the frame (6) is abutted against the side end of the limit block (18), and the support bracket (19) is abutted against the side end of the limit block (18), and a threaded hole is penetrated therethrough, and the upper end outer surface of the upper push rod (7) is provided with a threaded section corresponding to the threaded hole, and the upper end threaded section of the upper push rod (7) is The support bracket (19) passes through the threaded hole and is screwed together. A hook portion (191) is protruded from the upper part of one end away from the limit block (18). The frame (6) can be flipped upward to be vertical, and the other end is placed above the support bracket (19) corresponding to the area between the hook portion (191) and the limit block (18). At this time, the upper push rod (7) is twisted by external force, and the support bracket (19) can move up and down along the side end of the limit block (18), thereby moving to engage, lock or separate with the other end of the frame (6).

6. A hydraulic sealing protection box according to claim 5, characterized in that: The upper end of the upper push rod (7) is provided with a plate-shaped handle (13) for driving it to rotate, and the upper end of the limit block (18) is provided with a groove matching the handle (13). The handle (13) can be turned over to be embedded in the groove.

7. The hydraulic sealing protection box according to claim 1, characterized in that: The upper elastic extrusion member (71) and the lower elastic extrusion member (81) both comprise a pressure plate and a spring. The lower end of the upper push rod (7) and the upper end of the lower push rod (8) are elastically connected to the corresponding pressure plate via springs. The upper oil bag (9) and the lower oil bag (10) are respectively arranged at one end of the corresponding pressure plate away from the upper push rod (7) or the lower push rod (8).

8. The hydraulic sealing protection box according to claim 1, characterized in that: The upper push rod (7) and the lower push rod (8) are both provided with a connecting portion (14) sealedly connected to the inner wall of the corresponding upper hydraulic tank (11) and lower hydraulic tank (12), and the connecting portion can move up and down along the inner wall of the corresponding upper hydraulic tank (11) or lower hydraulic tank (12).

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