CN110081259B

CN110081259B - Maintenance box

Info

Publication number: CN110081259B
Application number: CN201910243427.7A
Authority: CN
Inventors: 李鑫; 林细勇; 喻延昭; 郑巍巍; 祁正伟; 苏杰
Original assignee: Rifeng Enterprise Foshan Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Current assignee: Rifeng Enterprise Foshan Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2021-02-02
Anticipated expiration: 2039-03-28
Also published as: CN110081259A

Abstract

The invention relates to a maintenance box which comprises a box body and a box cover. The box body is provided with an opening and a pipe penetrating port, and the opening direction of the opening is intersected with the opening direction of the pipe penetrating port. Lid detachably sets up in uncovered department, and the lid includes apron, drive assembly and is used for the lower cardboard that offsets with tubular product, and drive assembly sets up on the apron, has seted up the bar hole on the apron, and drive assembly can drive down the length direction removal in cardboard edge bar hole to shelter from or expose the bar hole. The maintenance box can reduce the installation difficulty of the pipe.

Description

Maintenance box

Technical Field

The invention relates to the technical field of pipe fittings, in particular to a maintenance box.

Background

The pipe comprises a pipeline and a joint arranged on the pipeline, and the aluminum plastic pipe is a common pipeline, has the advantages of field cutting, free bending, no rebound deformation, simple installation tool and the like, and is usually embedded in a wall body. The connection part of the aluminum-plastic pipe and the joint is easy to leak water, so that the maintenance box is embedded in the wall body firstly, and then the connection part of the aluminum-plastic pipe and the joint is arranged in the maintenance box, so that the maintenance box is detached to maintain the pipe in maintenance. In the conventional art, when a pipe is installed, the length of the pipe extending into the maintenance box needs to be strictly controlled, so that the difficulty in installing the pipe is high.

Disclosure of Invention

In view of the above, it is necessary to provide a repair box for reducing the difficulty of mounting a pipe.

A service box, comprising:

the box body is provided with an opening and a tube penetrating port, and the opening direction of the opening is intersected with the opening direction of the tube penetrating port; and

the lid, detachably set up in uncovered department, the lid includes apron, drive assembly and can with the lower cardboard that tubular product offseted, drive assembly set up in on the apron, the bar hole has been seted up on the apron, drive assembly can drive down the cardboard is followed the length direction in bar hole removes to shelter from or expose the bar hole.

The maintenance box at least has the following advantages:

when the pipe is installed, the box body is embedded into the wall body, then the pipeline provided with the connector is arranged in the pipe penetrating opening in a penetrating mode, and the connector extends out of the opening. The drive transmission assembly acts, and the transmission assembly drives the lower clamping plate to move along the length direction of the strip-shaped hole so as to reduce the shielding degree of the lower clamping plate to the strip-shaped hole. Because the cardboard is less to the degree of sheltering from in bar hole down, so connect and pass the bar hole more easily, the installation difficulty degree of tubular product is lower. After the joint penetrates through the strip-shaped hole, the box cover is matched with the box body. The action of drive transmission assembly utilizes transmission assembly to drive down cardboard reverse movement, makes cardboard and tubular product offset down to the cardboard is to the degree of sheltering from in bar hole under the increase, thereby accomplishes the installation of tubular product. Understandably, the length of the pipeline extending into the maintenance box is adapted by changing the moving distance of the lower clamping plate, the pipeline extending into the maintenance box is not required to be cut or lengthened to be a specific length, and the difficulty in installing the pipe is further reduced.

During the maintenance, the action of drive transmission assembly utilizes transmission assembly to drive down the length direction removal in cardboard edge strip shape hole to cardboard is to the degree of sheltering from in strip shape hole down in the reduction, thereby is convenient for dismantle the lid get off. When the box cover is detached, the operating personnel can maintain the pipe.

After the maintenance is accomplished, make lid and box body cooperation, the action of drive transmission assembly utilizes transmission assembly to drive down cardboard reverse movement, makes cardboard and tubular product offset down to the cardboard reduces exposing of tubular product to the degree of sheltering from in the strip-shaped hole under the increase.

The technical solution is further explained below:

in one embodiment, the transmission component comprises a rotating shaft and a cam arranged on the rotating shaft, the cam abuts against the lower clamping plate, and the cam can rotate relative to the cover plate.

In one embodiment, the cam is provided with gear teeth on the outer periphery thereof, and the lower catch plate is provided with a latch pawl for preventing the cam from reversing.

In one embodiment, the transmission assembly further includes a knob disposed on the rotating shaft, the knob is located on a side of the cover plate opposite to the cam, and the knob is used for driving the rotating shaft to rotate.

In one embodiment, the box cover further comprises an upper clamping plate which can abut against the pipe, the upper clamping plate can move along the length direction of the strip-shaped hole to shield or expose the strip-shaped hole, and the upper clamping plate and the lower clamping plate are distributed along the length direction of the strip-shaped hole.

In one embodiment, the upper clamping plate is provided with an upper notch facing the lower clamping plate, the lower clamping plate is provided with a lower notch facing the upper clamping plate, and the opening wall of the upper notch and the opening wall of the lower notch are both used for abutting against the pipe.

In one embodiment, the box cover further includes an upper buckle and a lower buckle distributed along the length direction of the strip-shaped hole, the upper buckle and the lower buckle are both disposed on the cover plate, the upper clamping plate is disposed in a space enclosed by the upper buckle and the cover plate, and the lower clamping plate is disposed in a space enclosed by the lower buckle and the cover plate.

In one embodiment, the repair box further comprises an extrusion sleeve for sleeving the tube, and the extrusion sleeve is in interference fit with the tube penetrating opening.

In one embodiment, the extrusion sleeve comprises a sleeve body and a limiting ring arranged on the sleeve body, a limiting groove is formed in the wall of the opening of the nozzle, and the limiting ring is located in the limiting groove.

In one embodiment, the sleeve body comprises a first sleeve body and a second sleeve body which are communicated, and the inner diameter of the first sleeve body is smaller than that of the second sleeve body.

In one embodiment, the box body is provided with a first marking and a second marking which are arranged at intervals, the distance between the first marking and the second marking is smaller than or equal to the sum of the moving strokes of the upper clamping plate and the lower clamping plate, and the first marking and the second marking are used for feeding back whether the lengths of the maintenance box and the pipe are matched or not.

Drawings

FIG. 1 is a schematic view of a repair box with tubing installed therein according to an embodiment of the present invention;

FIG. 2 is an exploded view of the repair box of FIG. 1, shown with tubing;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the lid of FIG. 1;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is a partial schematic view of the lid of FIG. 4;

FIG. 7 is a partial schematic view of the service cassette of FIG. 1;

fig. 8 is a schematic view of the structure of the extrusion sleeve of fig. 1.

Description of reference numerals:

10. the maintenance box comprises a maintenance box body 100, a box body 110, an opening 120, a pipe penetrating port 121, a limiting groove 130, a clamping groove 140, a first marking line 150, a second marking line 200, a box cover 210, a cover plate 211, a strip-shaped hole 212, a clamping block 213, a through hole 220, a transmission component 221, a rotating shaft 222, a cam 223, a gear tooth 224, a knob 230, a lower clamping plate 231, a pawl 232, a lower notch 240, a lower buckle 241, a first lower clamping groove 242, a second lower clamping groove 250, an upper clamping plate 251, an upper notch 260, an upper buckle 310, a first extending wing 311, an extending rod 320, a second extending wing 321, a stacking hole 400, a squeezing sleeve 410, a sleeve body 420, a limiting ring, a pipe, b, a pipe, c and a joint.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "lower," "upper," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. The reference to "vertical" herein is not limited to absolute vertical only, and should allow for some error. The reference to "level" herein is not limited to absolute levels only, and certain errors should be tolerated.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1 and 2, in an embodiment, the repair box 10 facilitates the repair of the tube a and reduces the difficulty of installing the tube a. Specifically, the service box 10 includes a box body 100 and a box cover 200 detachably connected, the box body 100 is configured to be embedded in a wall body, and the box cover 200 is configured to be exposed outside the wall body. The pipe material a herein includes a pipe b and a joint c provided on the pipe b, and the joint c is bent with respect to the pipe b.

The box 100 mainly serves to accommodate the pipe a, the box 100 has an opening 110 and a pipe penetrating port 120, the opening 110 is used to expose the joint c, and the pipe penetrating port 120 is used to penetrate the pipeline b. The opening direction of the opening 110 is crossed with the opening direction of the pipe penetrating port 120 so as to adapt to the relatively bent joint c and the pipeline b. In the present embodiment, the outer contour of the box 100 is rectangular parallelepiped, and the tube insertion opening 120 is a U-shaped notch, which is simple in structure and easy to manufacture. Of course, in other embodiments, the outer contour shape of the box 100 and the shape of the tube penetrating port 120 can be flexibly designed.

Referring to fig. 3 and 4, the box cover 200 is detachably disposed at the opening 110. In this embodiment, the box cover 200 includes a cover plate 210, a clamping block 212 is disposed on the cover plate 210, a clamping groove 130 is formed in the box body 100, and the clamping block 212 is clamped in the clamping groove 130, so as to detachably connect the box cover 200 and the box body 100. Of course, in other embodiments, a first assembling hole may be formed in the box body 100, a second assembling hole may be formed in the box cover 200, and a fastening member such as a screw may be inserted into the first assembling hole and the second assembling hole, so as to detachably connect the box cover 200 and the box body 100.

The box cover 200 further comprises a transmission component 220 and a lower clamping plate 230 abutting against the pipe a, the transmission component 220 is arranged on the cover plate 210, the cover plate 210 is provided with a strip-shaped hole 211, and the transmission component 220 can drive the lower clamping plate 230 to move along the length direction of the strip-shaped hole 211 so as to shield or expose the strip-shaped hole 211.

When the pipe a is installed, the box 100 is first embedded into the wall, and then the pipe b with the joint c is inserted into the through pipe opening 120, and the joint c extends out of the opening 110. The driving assembly 220 is driven to move, and the driving assembly 220 drives the lower clamping plate 230 to move along the length direction of the strip-shaped hole 211, so as to reduce the shielding degree of the lower clamping plate 230 on the strip-shaped hole 211. Because cardboard 230 is less to the degree of sheltering from in bar hole 211 down, so connect c and pass bar hole 211 more easily, the installation difficulty of tubular product a is lower. After the joint c passes through the bar-shaped hole 211, the cap 200 is fitted to the case body 100. The action of drive transmission assembly 220 utilizes transmission assembly 220 to drive down cardboard 230 reverse movement, makes cardboard 230 offset with tubular product a down to cardboard 230 shelters from the degree to bar-shaped hole 211 under the increase, thereby accomplishes the installation of tubular product a. It can be understood that, by changing the distance that the lower clamping plate 230 moves to adapt to the length of the pipe b extending into the maintenance box 10, the pipe b extending into the maintenance box 10 does not need to be cut to a specific length, and the difficulty in installing the pipe a is further reduced.

During maintenance, the driving component 220 acts, the driving component 220 drives the lower clamping plate 230 to move along the length direction of the strip-shaped hole 211, so that the shielding degree of the lower clamping plate 230 to the strip-shaped hole 211 is reduced, and the box cover 200 is convenient to detach. When the box cover 200 is detached, the operator can maintain the pipe a.

After the maintenance is completed, the box cover 200 is matched with the box body 100 to drive the transmission assembly 220 to move, the transmission assembly 220 is utilized to drive the lower clamping plate 230 to move reversely, so that the lower clamping plate 230 is abutted against the pipe a, the shielding degree of the lower clamping plate 230 on the strip-shaped hole 211 is increased, and the exposure of the pipe a is reduced.

Referring to fig. 5, in the present embodiment, the transmission assembly 220 includes a rotating shaft 221 and a cam 222 disposed on the rotating shaft 221, the cam 222 abuts against the lower catch plate 230, and the cam 222 can rotate relative to the cover plate 210. During the rotation of the cam 222, the cam 222 drives the lower catch plate 230 to move along the length direction of the bar-shaped hole 211. Of course, in other embodiments, the driving transmission assembly 220 may also be another assembly capable of driving the lower clamping plate 230 to move along the length direction of the bar-shaped hole 211.

Further, the cam 222 is provided with gear teeth 223 on an outer circumference thereof, and the lower catch plate 230 is provided with a locking pawl 231, the locking pawl 231 being for preventing the cam 222 from being reversely rotated. This design prevents the lower clamping plate 230 from moving in the reverse direction due to the cam 222 being reversed after the tubing is installed, thereby exposing the tubing. Of course, in other embodiments, the gear teeth 223 and/or the dogs 231 may be omitted.

Further, the transmission assembly 220 further includes a knob 224, the knob 224 is disposed on the rotating shaft 221, the knob 224 is located on a side of the cover plate 210 facing away from the cam 222 for being easily touched by an operator, and the knob 224 is configured to drive the rotating shaft 221 to rotate, so that the lower catch plate 230 moves along the length direction of the bar-shaped hole 211. The knob 224 may be provided with anti-slip texture to increase friction, wherein the anti-slip texture may be anti-slip protrusions or anti-slip grooves, etc. It is understood that, in the present embodiment, the knob 224 and the cam 222 are fixed relative to the rotating shaft 221, and the rotating shaft 221 is rotatably disposed on the cover plate 210. Of course, in other embodiments, the knob 224 may be omitted, the rotating shaft 221 may be fixed relative to the cover plate 210, and the cam 222 may be rotatably disposed on the rotating shaft 221.

Referring to fig. 6, further, the box cover 200 further includes a lower buckle 240, the lower buckle 240 is disposed on the cover plate 210, and the lower clamping plate 230 is disposed in a space enclosed by the lower buckle 240 and the cover plate 210. The lower clip 240 can limit the lower clip plate 230 and prevent the lower clip plate 230 from displacing along the thickness direction of the lower clip plate 230. Specifically, lower buckle 240 includes a lower connecting arm and a first lower clamping arm and a second lower clamping arm which are oppositely arranged at an interval, one end of the first lower clamping arm is arranged on cover plate 210, the other end of the first lower clamping arm is arranged on the lower connecting arm, one end of the second lower clamping arm is arranged on cover plate 210, and the other end of the second lower clamping arm is arranged on the lower connecting arm.

In this embodiment, the cover plate 210 is provided with two through holes 213 disposed at an interval, the first lower arm is provided with a first lower engaging groove 241, the first lower arm is disposed through one of the through holes 213 and is engaged with the cover plate 210 through the first lower engaging groove 241, the second lower arm is provided with a second lower engaging groove 242, and the second lower arm is disposed through the other through hole 213 and is engaged with the cover plate 210 through the second lower engaging groove 242. The design can realize the detachable connection of the lower buckle 240 and the cover plate 210, and the manufacturing difficulty of the box cover 200 is reduced. Of course, in other embodiments, the lower clip 240 may be omitted, a lower slide rail is disposed on the cover plate 210, and a lower slide block is formed on the lower clip plate 230, and the lower slide block is slidably engaged with the lower slide rail.

Referring to fig. 2 and 4, further, the box cover 200 further includes an upper clamping plate 250 capable of abutting against the tube a, the upper clamping plate 250 can move along the length direction of the bar-shaped hole 211 to shield or expose the bar-shaped hole 211, and the upper clamping plate 250 and the lower clamping plate 230 are distributed along the length direction of the bar-shaped hole 211. In the present embodiment, the upper card 250 is movable along the length direction of the bar-shaped hole 211 by gravity. The upper clamping plate 250 can better adapt to the length of the pipeline b extending into the maintenance box 10 on the premise of not increasing the stroke of the lower clamping plate 230, so as to further reduce the difficulty in installing the pipe a. Of course, in other embodiments, the upper card 250 may be omitted. Alternatively, the upper catch plate 250 is fixed with respect to the cover plate 210.

When the pipe a is installed, the upper clamping plate 250 is pulled, so that the upper clamping plate 250 moves relative to the cover plate 210 along the length direction of the strip-shaped hole 211, and the shielding degree of the strip-shaped hole 211 by the upper clamping plate 250 is reduced. Make lid 200 and box body 100 cooperation, because last cardboard 250 is less to the degree of sheltering from in bar hole 211, so connect c and pass bar hole 211 more easily, the installation difficulty degree of tubular product a is lower. Go up cardboard 250 and remove along the length direction in bar-shaped hole 211 under the effect of gravity, make cardboard 230 offset with tubular product a down to cardboard 230 shelters from the degree to bar-shaped hole 211 under the increase, thereby accomplish tubular product a's installation.

During maintenance, the upper clamping plate 250 is pulled, so that the upper clamping plate 250 moves relative to the cover plate 210 along the length direction of the strip-shaped hole 211, the shielding degree of the upper clamping plate 250 to the strip-shaped hole 211 is reduced, and the box cover 200 is convenient to disassemble. After the maintenance is completed, the upper clamping plate 250 moves along the length direction of the strip-shaped hole 211 under the action of gravity, so that the lower clamping plate 230 is abutted against the pipe a, the shielding degree of the upper clamping plate 250 on the strip-shaped hole 211 is increased, and the exposure of the pipe a is reduced.

It should be noted that, in the present embodiment, since the upper card 250 can move along the length direction of the bar-shaped hole 211 under the action of gravity, when in use, the upper card 250 and the lower card 230 can be distributed along the vertical direction, and the height of the upper card 250 should be higher than the height of the lower card 230. Of course, in other embodiments, when the upper card board 250 and the lower card board 230 need to be distributed along the horizontal direction, a driving member such as a cam may be added on the cover plate 210 to drive the upper card board 250 to move along the length direction of the strip-shaped hole 211.

Further, the box cover 200 further includes an upper buckle 260, the upper buckle 260 is disposed on the cover plate 210, and the upper clamping plate 250 is disposed through a space defined by the upper buckle 260 and the cover plate 210. The upper buckle 260 can limit the upper clamping plate 250 and prevent the upper clamping plate 250 from displacing in the thickness direction of the upper clamping plate 250. In this embodiment, the upper clip 260 and the lower clip 240 are distributed along the length direction of the bar-shaped hole 211, the upper clip 260 and the lower clip 240 have similar structures and similar disassembly and assembly manners, and are not described herein again. Of course, in other embodiments, the upper latch 260 may be omitted.

Furthermore, an upper notch 251 facing the lower clamping plate 230 is formed in the upper clamping plate 250, a lower notch 232 facing the upper clamping plate 250 is formed in the lower clamping plate 230, and the opening wall of the upper notch 251 and the opening wall of the lower notch 232 are both used for abutting against the pipe a. The existence of the upper notch 251 and the lower notch 232 can reduce the exposure of the pipe a, and is beneficial to realizing the concealed installation of the pipe a. In this embodiment, the upper notch 251 and the lower notch 232 are both arc-shaped notches, and can be tightly attached to the outer wall of the tube a, so as to facilitate the sealing of the maintenance box 10. Of course, in other embodiments, the upper notch 251 and/or the lower notch 232 may be omitted, and the shapes of the upper notch 251 and the lower notch 232 may be flexibly designed, such as a square notch.

Furthermore, the box body 100 is formed with a first marking 140 and a second marking 150 which are arranged at intervals, the distance between the first marking 140 and the second marking 150 is smaller than or equal to the sum of the moving strokes of the upper clamping plate 250 and the lower clamping plate 230, and the first marking 140 and the second marking 150 are used for feeding back whether the lengths of the maintenance box 10 and the pipe a are matched. The first reticle 140 and/or the second reticle 150 may be a striped protrusion, a striped groove, a linear pattern, or the like. In this embodiment, first gauge mark 140 corresponds to the height of upper clip 260, and second gauge mark 150 corresponds to the height of lower clip 240. It should be noted that the height of the tube a is similar to the length of the tube a. Of course, in other embodiments, the positions of the first reticle 140 and the second reticle 150 can be flexibly designed.

When the pipe a is installed, if the height of the pipe a is between the first marked line 140 and the second marked line 150, the height of the maintenance box 10 is matched with that of the pipe a, and the pipe a can be installed in the maintenance box 10. If the height of the tube a is higher than the first marked line 140 or the height of the tube a is lower than the second marked line 150, the height of the maintenance box 10 is not matched with that of the tube a, the tube a cannot be installed in the maintenance box 10, and the tube a needs to be further cut or lengthened. After the tube a is inserted into the through-tube opening 120, it can be determined whether the lengths of the maintenance box 10 and the tube a are matched, so that the installation time of the operator can be saved by the first marking 140 and the second marking 150, and the situation that the lengths of the maintenance box 10 and the tube a are not matched when the cover plate 210 is installed is avoided.

Referring to fig. 7, further, the maintenance box 10 further includes a first extending wing 310 and a second extending wing 320 respectively disposed at two opposite sides of the box body 100, wherein the first extending wing 310 is provided with an extending rod 311 extending along a depth direction of the box body 100, the second extending wing 320 is provided with a stacking hole 321, and the stacking hole 321 is used for penetrating the extending rod 311. When the box bodies 100 are transported in batches, the extension rod 311 on one box body 100 can penetrate through the stacking hole 321 on the other box body 100, so that the box bodies 100 can be stacked, and the carrying convenience of the box bodies 100 is improved. In the present embodiment, the number of the first extending wing 310, the second extending wing 320, the extending rod 311 and the stacking hole 321 is two. Of course, in other embodiments, the number of the first extending wings 310 and the second extending wings 320 can be flexibly adjusted.

Referring to fig. 2 and 8, further, the maintenance box 10 further includes an extrusion sleeve 400 for sleeving the tube a, and the extrusion sleeve 400 is in interference fit with the tube penetration opening 120. When the pipe a is installed, the extrusion sleeve 400 is firstly sleeved at one end of the pipe b close to the joint c, and then the extrusion sleeve 400 is in interference fit with the pipe penetrating port 120, so that the pipe a is installed in the box body 100. The existence of the extrusion sheath 400 can increase the connection tightness between the tube a and the box body 100, and facilitate the subsequent matching between the box cover 200 and the box body 100. The extrusion sheath 400 may be a sheath-like structure that can be extruded and deformed, such as a rubber extrusion sheath 400 or a plastic extrusion sheath 400. Of course, in other embodiments, the extrusion sleeve 400 may be omitted.

It can be understood that, since the extrusion sheath 400 can be extruded and deformed, the extrusion sheath 400 can be adapted to pipes with different pipe diameters. Of course, the specification of the extrusion sleeve 400 can be changed to further adapt to pipes with different pipe diameters. Referring to fig. 3, further, the extruding sleeve 400 includes a sleeve body 410 and a limiting ring 420 disposed on the sleeve body 410, a limiting groove 121 is disposed on the wall of the pipe penetrating opening 120, and the limiting ring 420 is disposed in the limiting groove 121. The existence of the limiting ring 420 and the limiting groove 121 can prevent the extrusion sheath 400 from separating from the box body 100, and ensure the structural stability of the maintenance box 10. Of course, in other embodiments, the retainer ring 420 and the retainer groove 121 may be omitted.

Further, the sheath body 410 comprises a first sheath body 411 and a second sheath body 412 which are communicated, and the inner diameter of the first sheath body 411 is smaller than that of the second sheath body 412. When the pipe diameter of the pipe is smaller, the pipe abuts against the inner wall of the first sleeve 411. When the pipe diameter of the pipe is larger, the first sleeve 411 can be cut off, so that the pipe abuts against the inner wall of the second sleeve 412. The design of the first sleeve body 411 and the second sleeve body 412 can further adapt to pipes with different pipe diameters. The maintenance box 10 has at least the following advantages:

taking the pipe a formed by taking the pipeline b as an aluminum plastic pipe and taking the joint c as an inner-tooth elbow as an example, a reserved groove is formed on the wall body before the pipe a is installed.

When the pipe a is installed, the box body 100 is firstly placed in the reserved groove, and the box body 100 is fixed on the wall body. The pipe b is sleeved with the extrusion sleeve 400, so that the extrusion sleeve 400 is in interference fit with the pipe penetrating port 120, and the pipe a is installed in the box body 100. The knob 224 is rotated, and the upper card plate 250 is pulled, so that the lower card plate 230 and the upper card plate 250 are away from each other along the length direction of the strip-shaped hole 211, so as to reduce the degree of shielding of the strip-shaped hole 211 by the lower card plate 230 and the upper card plate 250. The tube a is inserted into the strip-shaped hole 211, and the box cover 200 is fastened to the box body 100. Because the lower clamping plate 230 and the upper clamping plate 250 shield the strip-shaped hole 211 to a smaller extent, the tube a can pass through the strip-shaped hole 211 more easily, and the difficulty in mounting the tube a is lower. The knob 224 is rotated reversely, so that the lower clamping plate 230 and the upper clamping plate 250 are close to each other along the length direction of the strip-shaped hole 211, the lower clamping plate 230 is driven by the transmission assembly 220 to abut against the pipe a, the upper clamping plate 250 abuts against the pipe a under the action of gravity, the shielding degree of the strip-shaped hole 211 by the lower clamping plate 230 and the upper clamping plate 250 is increased, and the pipe a is mounted. It can be understood that the length of the pipe b extending into the repair box 10 can be adapted by changing the distance that the lower clamping plate 230 and the upper clamping plate 250 move, and the pipe b extending into the repair box 10 does not need to be cut to a specific length, thereby further reducing the difficulty in installing the pipe a.

During maintenance, the knob 224 is rotated, and the upper clamping plate 250 is pulled, so that the lower clamping plate 230 and the upper clamping plate 250 are away from each other along the length direction of the strip-shaped hole 211, the shielding degree of the strip-shaped hole 211 by the lower clamping plate 230 and the upper clamping plate 250 is reduced, and the box cover 200 is convenient to disassemble. The box cover 200 and the box body 100 can enclose a preformed hole, maintenance tools such as a screwdriver and the like can be stretched into the preformed hole, and then the box cover 200 is pried away from the box body 100. In the present embodiment, the preformed hole is connected to the tube penetrating opening 120, so as to prevent the transmission assembly 220 from interfering with other components. When the box cover 200 is detached, the operator can maintain the pipe a.

After the maintenance is completed, the box cover 200 is engaged with the box body 100, so that the tube a is inserted into the strip-shaped hole 211. The knob 224 is rotated to make the lower clamping plate 230 and the upper clamping plate 250 approach to each other along the length direction of the strip-shaped hole 211, so that the lower clamping plate 230 is driven by the transmission assembly 220 to abut against the pipe a, and the upper clamping plate 250 abuts against the pipe a under the action of gravity, so as to increase the shielding degree of the strip-shaped hole 211 by the lower clamping plate 230 and the upper clamping plate 250, and reduce the exposure of the pipe a.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A service cassette, comprising:

2. The repair kit as claimed in claim 1, wherein the transmission assembly includes a shaft and a cam disposed on the shaft, the cam abutting against the lower clamping plate, the cam being capable of rotating relative to the cover plate.

3. The repair kit as claimed in claim 2, wherein the cam is provided with gear teeth on an outer periphery thereof, and the lower catch plate is provided with a latch pawl for preventing the cam from being reversed.

4. The repair kit as claimed in claim 2, wherein the transmission assembly further comprises a knob, the knob is disposed on the shaft, the knob is disposed on a side of the cover plate facing away from the cam, and the knob is configured to drive the shaft to rotate.

5. The repair box according to claim 1, wherein the box cover further comprises an upper clamping plate which can abut against the pipe, the upper clamping plate can move along the length direction of the strip-shaped hole to shield or expose the strip-shaped hole, and the upper clamping plate and the lower clamping plate are distributed along the length direction of the strip-shaped hole.

6. The repair box according to claim 5, wherein the upper clamping plate has an upper notch facing the lower clamping plate, the lower clamping plate has a lower notch facing the upper clamping plate, and the opening walls of the upper notch and the lower notch are both configured to abut against the pipe.

7. The repair kit of claim 5, wherein the kit cover further comprises an upper buckle and a lower buckle distributed along the length direction of the strip-shaped hole, the upper buckle and the lower buckle are both disposed on the cover plate, the upper snap-gauge is disposed in a space defined by the upper buckle and the cover plate, and the lower snap-gauge is disposed in a space defined by the lower buckle and the cover plate.

8. A service box according to any of claims 1 to 7, further comprising an extrusion sleeve for sleeving the tube, the extrusion sleeve being in interference fit with the tube penetration.

9. The repair kit as claimed in claim 8, wherein the extrusion sheath includes a sheath body and a limiting ring disposed on the sheath body, a limiting groove is formed on the wall of the opening of the nozzle, and the limiting ring is disposed in the limiting groove.

10. The maintenance box according to any one of claims 5 to 7, wherein a first marking and a second marking are formed on the box body at intervals, the distance between the first marking and the second marking is smaller than or equal to the sum of the moving strokes of the upper clamping plate and the lower clamping plate, and the first marking and the second marking are used for feeding back whether the lengths of the maintenance box and the pipe are matched.