CN214657022U

CN214657022U - Protect a section of thick bamboo pressure delivery device

Info

Publication number: CN214657022U
Application number: CN202120759902.9U
Authority: CN
Inventors: 王存帅; 刘意
Original assignee: China Metallurgical Construction Engineering Group Co Ltd
Current assignee: China Metallurgical Construction Engineering Group Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-09
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a protect a section of thick bamboo pressure transmission device, including annular core, wear to be equipped with many rather than sliding fit's telescopic strut along its circumference even interval on the outer peripheral face of annular core, telescopic strut extends along the radial direction of annular core, be provided with on the annular core and can support tightly on telescopic strut in order to reduce the fixing bolt of fastening on annular core, telescopic strut is located the one end in the annular core outside and is the button head end, telescopic strut's button head end is unanimous with the excircle radius of waiting to be under construction steel to protect a section of thick bamboo to the interval of annular core central line, telescopic strut's button head end is provided with spacing post, the one end of spacing post is fixed with telescopic strut, the other end extends towards one side of annular core, be formed with between all spacing posts and be used for treating that the construction steel protects a section of thick bamboo and carry out spacing space. The utility model discloses simple structure moves down through the drilling rod, protects a section of thick bamboo pressure feed device and is used for the steel to protect a section of thick bamboo upper end promotion steel and protect a section of thick bamboo and sink, has avoided the steel to protect the problem that a section of thick bamboo blocked in the stake hole.

Description

Protect a section of thick bamboo pressure delivery device

Technical Field

The utility model relates to a bored concrete pile construction field, concretely relates to protect a pressure equipment device.

Background

When the cast-in-situ bored pile is constructed, due to the reasons of complex geology of a construction site, overhigh underground water level and the like, a steel casing can be adopted in the construction process to prevent the problems of pile hole collapse and the like. However, in the process of steel casing sinking construction, friction between the steel casing and the wall of the pile hole can be encountered, so that the steel casing is clamped in the pile hole and cannot sink.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a protect a section of thick bamboo pressure equipment that send that can exert thrust to steel for the drill collar and assist steel protects a section of thick bamboo and subsides.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a protective cylinder pressure delivery device comprises an annular core plate, wherein the outer diameter of the annular core plate is smaller than the inner diameter of a drill cylinder to be installed, a plurality of telescopic supporting rods are uniformly arranged on the outer peripheral surface of the annular core plate at intervals around the central line of the annular core plate and extend along the radial direction of the annular core plate, telescopic holes extending along the radial direction of the annular core plate are formed in the positions, corresponding to the telescopic supporting rods, of the annular core plate, the telescopic holes are through holes, one ends, facing the annular core plate, of the telescopic supporting rods penetrate through the corresponding telescopic holes and extend into the inner side of the annular core plate, the telescopic supporting rods can be in sliding fit with the telescopic holes along the direction of the central line of the corresponding telescopic holes, fixing screw holes communicated with the telescopic holes are respectively formed in the side surface of one side of the annular core plate and corresponding to the telescopic holes, the fixing screw holes extend along the radial direction of the telescopic holes, the central line of the fixing screw holes is parallel to the central line of the annular core plate, and fixing bolts are arranged at the positions of the fixing screw holes, fixing bolt's screw rod screw-thread fit is in fixed screw, fixing bolt's screw rod can support tightly and fix telescopic strut on annular core on its telescopic strut who corresponds, telescopic strut is located the one end in the annular core outside and is the button head end, telescopic strut's button head end is unanimous with the excircle radius of waiting to be under construction the steel and protecting a section of thick bamboo, telescopic strut's button head end is provided with spacing post, the one end of spacing post and telescopic strut's button head end fixed connection, the other end extends the setting towards one side in annular core, the central line of spacing post and telescopic strut's central line are located the coplanar and mutually perpendicular, be formed with between all spacing posts and be used for treating to be under construction the steel and protect a section of thick bamboo and carry out spacing space.

During the construction process of the steel casing, the steel casing is hung to a pile hole, the position of the steel casing is adjusted, the steel casing naturally sinks in the pile hole by virtue of gravity, after the steel casing is clamped in the pile hole and stops sinking, the casing feeding and pressing device is installed on a drill cylinder, the telescopic length of each telescopic supporting rod is adjusted according to the excircle radius of the steel casing, the telescopic supporting rods are fixed by screwing a fixing bolt, then one side of an annular core plate, which is opposite to a limiting space, faces towards the drill cylinder, the central line of the annular core plate is adjusted to be concentric with the central line of the drill cylinder, the mouth end of the drill cylinder abuts against the telescopic supporting rods, the annular core plate is fixed with the drill cylinder, then the central line of the drill cylinder is adjusted to be concentric with the central line of the steel casing, after the drill cylinder is adjusted to the position, a rotary excavator is started to enable a drill rod to move downwards, the drill cylinder extends into the pile hole and moves towards the direction of the steel casing, and the upper end of the steel casing enters the limiting space, the upper end butt of a steel protects a section of thick bamboo on telescopic strut, and the drilling rod continues to move down, and send the pressure equipment to promote a steel to protect a section of thick bamboo through protecting a section of thick bamboo and sink to appointed elevation, treat that a steel protects a section of thick bamboo and sink to the position after, the drilling rod promotes, and a steel protects a section of thick bamboo and withdraws from spacing space, accomplishes the steel and protects a section of thick bamboo and sink the construction.

Preferably, a central supporting tube is arranged on one side of the annular core plate back to the limiting space, the central line of the central supporting tube is perpendicular to the plane of the annular core plate, the projection of the central supporting tube along the central line direction of the central supporting tube is positioned on the inner side of the projection of the annular core plate along the central line direction of the central supporting tube, the two sides of the central supporting tube are fixedly connected with lower hinged supports in a symmetrical mode along the central line symmetrical axis of the central supporting tube, lower supporting rods are arranged on the lower hinged supports, one end of each lower supporting rod is hinged to the lower hinged supports through the lower hinged shafts, a sliding rod capable of being in sliding fit with the central supporting tube along the central line direction of the central supporting tube penetrates through the central supporting tube, annular convex blocks which are arranged on the rod body of one side of the central supporting tube back to the annular core plate in a protruding mode and have the same central line with the sliding rods, the diameter of each annular convex block is larger than that of the sliding rods, and upper hinged supports are symmetrically arranged on the two sides of the annular convex blocks with the central line of the annular convex blocks as the symmetrical axis, an upper supporting rod is arranged on the upper hinged support, one end of the upper supporting rod is hinged and connected to the upper hinged support through an upper hinged shaft, the two upper supporting rods are hinged and connected to the lower supporting rod body on the side of the upper hinged support respectively around a rotating plane corresponding to the upper hinged shaft and the two lower supporting rods are respectively located on the same plane around a rotating plane corresponding to the lower hinged shaft, one end, away from the upper hinged support, of each upper supporting rod is hinged and connected to the lower supporting rod body on the side of the upper hinged support, the two upper supporting rods and the two lower supporting rods form a parallelogram mechanism, the sliding rod is located in the center supporting tube and faces the annular core plate, limit threaded holes are formed in the rod body on one side of the annular core plate in a penetrating mode along the radial direction of the sliding rod, limit bolts are respectively arranged at the positions, located at the two ends of each limit threaded hole, are in threaded and matched with the corresponding limit threaded holes, a support spring is sleeved on the rod body, located between the limit bolts and the center supporting tube, and the two ends of the support spring are respectively abutted to support the limit bolts and the center supporting tube so as to support the annular convex block towards the center supporting tube The pipe direction removes and provides the spring force, and when annular lug moved towards the center support pipe direction, the one end that the free bearing was kept away from down to the lower bracing piece can support tightly on treating installation drill collar inner wall, and the slide bar is located the center support pipe orientation the one end of annular core board direction was worn the inner circle of annular core board is provided with on the slide bar pole body along slide bar central line direction pass by the slide bar in the one end of annular core board is towards the connecting thread that extends in the other end, the cover is equipped with threaded connection cover on the slide bar and is in the same place through connecting thread and slide bar screw-thread fit, and threaded connection cover is located annular board one side to the center support pipe back, and threaded connection cover's cover is provided with many connecting rods that extend along the radial direction of threaded connection cover around its central line direction is even interval on the cover body, and the connecting rod is towards the one end and the threaded connection cover fixed connection of threaded connection cover, and the connecting rod butt is in annular core board is in on the side of center support pipe back.

When the drill bit is used, the slide rod is operated to slide firstly, the annular convex block moves towards the direction far away from the central support pipe, the two upper support rods pull the two lower support rods to rotate and fold, the central support pipe is placed in the drill bit, then after the slide rod is loosened, the elastic resilience is resisted, the slide rod moves towards the direction of the central support pipe, the two upper support rods pull the two lower support rods to rotate and unfold, the central support pipe is fixed in the drill bit by abutting against the inner wall of the drill bit, then the annular core plate is installed, the telescopic support rods abut against the opening of the drill bit, the concentricity of the annular core plate and the drill bit is ensured, then the threaded connection sleeve is installed at one end, penetrating through the annular core plate, of the slide rod, the threaded connection sleeve moves in a rotating mode, the connecting rod abuts against the annular core plate, the telescopic support rods are pressed against the opening of the drill bit through the connecting rod, and installation is completed.

As an optimization, one end of the connecting rod, which is far away from the threaded connecting sleeve, is fixedly connected with an adjusting pipe, the center line of the adjusting pipe is parallel to the center line of the threaded connecting sleeve, one end of the adjusting pipe, which is back to the annular core plate, is provided with an adjusting screw, the inner wall of the adjusting pipe is provided with an adjusting screw, which is extended from one end of the adjusting pipe, which is back to the annular core plate, towards the other end, along the center line direction of the adjusting pipe, one end of the adjusting screw is extended into the corresponding adjusting pipe and is matched with the threads of the adjusting pipe through the adjusting screw, one end of the adjusting pipe, which is towards the annular core plate, is provided with a supporting push rod, one end of the supporting push rod is inserted into the corresponding adjusting pipe and can be in sliding fit with the adjusting pipe along the center line direction of the adjusting pipe, the other end of the supporting push rod is abutted against the annular core plate, and a supporting spring is arranged in the adjusting pipe and between the supporting push rod and the adjusting screw, two ends of the supporting spring are respectively abutted against the supporting push rod and the adjusting screw rod.

And screwing the threaded connecting sleeve to enable the upper end of the supporting push rod to abut against the annular core plate, screwing the adjusting screw rod, moving the adjusting screw rod towards the direction of the supporting push rod, and pressing the telescopic supporting rod on the opening of the drill cylinder by the supporting push rod by means of the spring force of the supporting spring through compression of the supporting spring, so that the position of the positioned annular core plate can be prevented from deviating.

As optimization, one end of the adjusting screw rod, which is positioned outside the adjusting pipe, protrudes outwards along the direction of the central line of the adjusting screw rod to form a twisting part, and at least two twisting surfaces which are parallel to each other and are parallel to the central line of the adjusting screw rod are arranged on the twisting part. The adjusting screw rod is convenient to screw.

As an optimization, the connecting position of the adjusting pipe and the connecting rod is located in the middle of the adjusting pipe along the length direction of the adjusting pipe, one end of the connecting rod, which is located at the adjusting pipe, is provided with two right-angle triangular rib plates, the two right-angle triangular rib plates are located at two sides of the connecting rod along the central line direction of the adjusting pipe, the plane of the right-angle triangular rib plates, the central line of the connecting rod corresponding to the plane of the right-angle triangular rib plates and the central line of the adjusting pipe are located on the same plane, and the two right-angle sides of the right-angle triangular rib plates are respectively and fixedly connected with the connecting rod corresponding to the right-angle triangular rib plates and the adjusting pipe. The bending deformation of the adjusting pipe can be avoided.

To sum up, the beneficial effects of the utility model reside in that: the utility model discloses simple structure moves down through the drilling rod, protects a section of thick bamboo pressure feed device and is used for the steel to protect a section of thick bamboo upper end promotion steel and protect a section of thick bamboo and sink, has avoided the steel to protect the problem that a section of thick bamboo blocked in the stake hole.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the installation structure of the middle casing pressure delivery device of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the casing pressure feeding device in this embodiment comprises an annular core plate 1, wherein the outer diameter of the annular core plate 1 is smaller than the inner diameter of a drill casing to be installed, a plurality of telescopic struts 2 are uniformly arranged on the outer circumferential surface of the annular core plate 1 around the central line of the annular core plate at intervals, the telescopic struts 2 extend along the radial direction of the annular core plate 1, telescopic holes extending along the radial direction of the annular core plate 1 are formed in the positions of the annular core plate 1 corresponding to the telescopic struts 2, the telescopic holes are through holes, one end of each telescopic strut 2 facing the annular core plate 1 penetrates through the corresponding telescopic hole and extends into the inner side of the annular core plate 1, the telescopic struts 2 can be slidably matched with the telescopic holes along the central line direction of the corresponding telescopic holes, fixed screw holes communicated with the telescopic holes are respectively formed in the side surface of one side of the annular core plate 1 and the positions corresponding to the telescopic holes, the fixed screw holes extend along the radial direction of the telescopic holes and the central line of the fixed screw holes is parallel to the central line of the annular core plate 1, fixing screw hole department is provided with fixing bolt, fixing bolt's screw rod screw-thread fit is in fixed screw, fixing bolt's screw rod can support tightly on its telescopic strut 2 that corresponds in order to fix telescopic strut 2 on annular core 1, the one end that telescopic strut 2 is located the annular core 1 outside is the button head end, the interval of the button head end of telescopic strut 2 to annular core 1 central line is unanimous with the excircle radius of waiting to be under construction steel casing, telescopic strut 2's button head end is provided with spacing post 3, the one end of spacing post 3 and telescopic strut 2's button head end fixed connection, the other end extends the setting towards one side of annular core 1, the central line of spacing post 3 and telescopic strut 2's central line are located the coplanar and mutually perpendicular, be formed with between all spacing posts 3 and be used for waiting to be under construction steel casing to carry out spacing space.

In the specific embodiment, a central supporting tube 4 is arranged on one side of the annular core plate 1 facing away from the limiting space, the central line of the central supporting tube 4 is perpendicular to the plane of the annular core plate 1, the projection of the central supporting tube 4 along the central line direction is positioned on the inner side of the projection of the annular core plate 4 along the central line direction of the central supporting tube, lower hinge seats are symmetrically and fixedly connected to two sides of the central supporting tube 4 along the central line symmetry axis of the central supporting tube, a lower supporting rod 5 is arranged on each lower hinge seat, one end of each lower supporting rod 5 is hinged to each lower hinge seat through each lower hinge shaft, a sliding rod 6 capable of being in sliding fit with the central supporting tube 4 along the central line direction is arranged in each central supporting tube 4 in a penetrating mode, an annular convex block 7 which is the same as the sliding rod and protrudes from the rod body on one side of the central supporting tube 4 facing away from the annular core plate 1, and the diameter of each annular convex block 7 is larger than the diameter of the sliding rod 6, two sides of the annular convex block 7 are symmetrically provided with an upper hinged support by taking the central line of the annular convex block 7 as a symmetry axis, an upper support rod 8 is arranged on the upper hinged support, one end of the upper support rod 8 is hinged and connected on the upper hinged support through an upper hinged shaft, a rotating plane of the two upper support rods 8 rotating around the corresponding upper hinged shafts and a rotating plane of the two lower support rods 5 rotating around the corresponding lower hinged shafts are respectively positioned on the same plane, one end of the upper support rod 8 far away from the upper hinged support is hinged and connected on the lower support rod 5 body on the side of the upper support rod 8, the two upper support rods 8 and the two lower support rods 5 form a parallelogram mechanism, a limit threaded hole is arranged on the rod body on one side of the central support tube 4 facing the annular core plate 1 along the radial direction of the slide rod 6 in a penetrating way, limit bolts 9 are respectively arranged at the positions of the two ends of the limit threaded hole of the slide rod 6, and the limit bolts 9 are in the corresponding limit threaded holes, a tight-supporting spring 10 is sleeved on a rod body of the sliding rod 6 between the limiting bolt 9 and the central supporting tube 4, two ends of the tight-supporting spring 10 are respectively abutted against the limiting bolt 9 and the central supporting tube 4 to provide spring force for the annular convex block 7 to move towards the central supporting tube 4, when the annular convex block 7 moves towards the central supporting tube 4, one end of the lower supporting rod 5 far away from the lower hinged support can be abutted against the inner wall of the drill cylinder to be installed, one end of the sliding rod 6, which is positioned at the central supporting tube 4 and faces towards the direction of the annular core plate 1, penetrates through the inner ring of the annular core plate 1, a connecting thread extending from one end of the sliding rod 6, which penetrates through the annular core plate 1, towards the other end along the central line direction of the sliding rod 6 is arranged on the rod 6, a thread connecting sleeve 11 is sleeved on the sliding rod 6 and is matched with the sliding rod 6 through the connecting thread, the thread connecting sleeve 11 is positioned at one side of the annular core plate 1, which is opposite to the central supporting tube 4, a plurality of connecting rods 12 extending along the radial direction of the threaded connecting sleeve 11 are uniformly arranged on the sleeve body of the threaded connecting sleeve 11 at intervals around the central line direction of the threaded connecting sleeve 11, one end of each connecting rod 12 facing the threaded connecting sleeve 11 is fixedly connected with the threaded connecting sleeve 11, and the connecting rods 12 are abutted against the side face of the annular core plate 1, which is opposite to the central supporting tube 4.

In the specific embodiment, one end of the connecting rod 12, which is far away from the threaded connecting sleeve 11, is fixedly connected with an adjusting pipe 13, the center line of the adjusting pipe 13 is parallel to the center line of the threaded connecting sleeve 11, one end of the adjusting pipe 13, which is back to the annular core plate 1, is provided with an adjusting screw 14, the inner wall of the adjusting pipe 13 is provided with an adjusting thread, which is extended from one end of the adjusting pipe 13, which is back to the annular core plate 1, towards the other end along the direction of the center line of the adjusting pipe 13, one end of the adjusting screw 14 extends into the corresponding adjusting pipe 13 and is in threaded fit with the adjusting pipe 13 through the adjusting thread, one end of the adjusting pipe 13, which is towards the annular core plate 1, is provided with a supporting push rod 15, one end of the supporting push rod 15 is inserted into the corresponding adjusting pipe 13 and can be in sliding fit with the core plate along the direction of the adjusting pipe 13, and the other end of the supporting push rod 15 is abutted against the annular core plate 1, a support spring is arranged in the adjusting pipe 13 and between the support push rod 15 and the adjusting screw 14, and two ends of the support spring are respectively abutted against the support push rod 15 and the adjusting screw 14.

In this embodiment, a twisting portion 16 is formed at one end of the adjusting screw 14 located outside the adjusting tube 13 and protruding outward along a central line direction thereof, and at least two twisting surfaces parallel to each other and parallel to the central line of the adjusting screw 14 are disposed on the twisting portion 16.

In this specific embodiment, the connection position of the adjusting pipe 13 and the connecting rod 12 is located at the middle position of the adjusting pipe 13 along the length direction thereof, the end of the connecting rod 12 located at the adjusting pipe 13 is provided with two right-angle triangular rib plates 17, the two right-angle triangular rib plates 17 are located at the two sides of the connecting rod 12 along the central line direction of the adjusting pipe 13, the plane of the right-angle triangular rib plate 17 is located on the same plane as the central line of the connecting rod 12 and the central line of the adjusting pipe 13 corresponding thereto, and the two right-angle sides of the right-angle triangular rib plate 17 are respectively fixedly connected with the connecting rod 12 and the adjusting pipe 13 corresponding thereto.

Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a protect a section of thick bamboo pressure equipment device which characterized in that: the annular core plate comprises an annular core plate, the outer diameter of the annular core plate is smaller than the inner diameter of a drill cylinder to be installed, a plurality of telescopic supporting rods are uniformly arranged on the outer peripheral surface of the annular core plate at intervals around the central line of the annular core plate, the telescopic supporting rods extend along the radial direction of the annular core plate, telescopic holes extending along the radial direction of the annular core plate are formed in the positions, corresponding to the telescopic supporting rods, of the annular core plate, the telescopic holes are through holes, the telescopic supporting rods penetrate through the telescopic holes corresponding to one end of the annular core plate and extend into the inner side of the annular core plate, the telescopic supporting rods can be in sliding fit with the telescopic holes along the direction of the central line of the telescopic holes corresponding to the telescopic supporting rods, fixing screw holes communicated with the telescopic holes are respectively arranged on the side surface of one side surface of the annular core plate and corresponding to the telescopic holes, the fixing screw holes extend along the radial direction of the telescopic holes and are parallel to the central line of the annular core plate, and fixing bolts are arranged at the positions of the fixing screw holes, fixing bolt's screw rod screw-thread fit is in fixed screw, fixing bolt's screw rod can support tightly and fix telescopic strut on annular core on its telescopic strut who corresponds, telescopic strut is located the one end in the annular core outside and is the button head end, telescopic strut's button head end is unanimous with the excircle radius of waiting to be under construction the steel and protecting a section of thick bamboo, telescopic strut's button head end is provided with spacing post, the one end of spacing post and telescopic strut's button head end fixed connection, the other end extends the setting towards one side in annular core, the central line of spacing post and telescopic strut's central line are located the coplanar and mutually perpendicular, be formed with between all spacing posts and be used for treating to be under construction the steel and protect a section of thick bamboo and carry out spacing space.

2. A casing pressure delivery apparatus according to claim 1, wherein: a central supporting tube is arranged on one side of the annular core plate back to the limiting space, the central line of the central supporting tube is vertical to the plane of the annular core plate, the projection of the central supporting tube along the central line direction of the central supporting tube is positioned on the inner side of the projection of the annular core plate along the central line direction of the central supporting tube, the two sides of the central supporting tube are fixedly connected with lower hinged supports in a symmetrical mode along the central line of the central supporting tube, lower supporting rods are arranged on the lower hinged supports, one end of each lower supporting rod is hinged to the lower hinged supports through the lower hinged shafts, a sliding rod capable of being in sliding fit with the central supporting tube along the central line direction of the central supporting tube penetrates through the central supporting tube, annular convex blocks which are positioned on one side of the central supporting tube back to the annular core plate and protrude upwards to form annular convex blocks which are concentric with the sliding rods, the diameter of each annular convex block is larger than that of each sliding rod, and the two sides of each annular convex block are symmetrically provided with upper hinged supports by taking the central line of the annular convex blocks as the symmetrical axis, an upper supporting rod is arranged on the upper hinged support, one end of the upper supporting rod is hinged and connected to the upper hinged support through an upper hinged shaft, the two upper supporting rods are hinged and connected to the lower supporting rod body on the side of the upper hinged support respectively around a rotating plane corresponding to the upper hinged shaft and the two lower supporting rods are respectively located on the same plane around a rotating plane corresponding to the lower hinged shaft, one end, away from the upper hinged support, of each upper supporting rod is hinged and connected to the lower supporting rod body on the side of the upper hinged support, the two upper supporting rods and the two lower supporting rods form a parallelogram mechanism, the sliding rod is located in the center supporting tube and faces the annular core plate, limit threaded holes are formed in the rod body on one side of the annular core plate in a penetrating mode along the radial direction of the sliding rod, limit bolts are respectively arranged at the positions, located at the two ends of each limit threaded hole, are in threaded and matched with the corresponding limit threaded holes, a support spring is sleeved on the rod body, located between the limit bolts and the center supporting tube, and the two ends of the support spring are respectively abutted to support the limit bolts and the center supporting tube so as to support the annular convex block towards the center supporting tube The pipe direction removes and provides the spring force, and when annular lug moved towards the center support pipe direction, the one end that the free bearing was kept away from down to the lower bracing piece can support tightly on treating installation drill collar inner wall, and the slide bar is located the center support pipe orientation the one end of annular core board direction was worn the inner circle of annular core board, be provided with on the slide bar pole body along slide bar central line direction pass by the slide bar in the one end of annular core board is towards the connecting thread that extends in the other end, the cover is equipped with threaded connection cover on the slide bar and is in the same place through connecting thread and slide bar screw-thread fit, and threaded connection cover is located one side of annular core board back to center support pipe, and threaded connection cover's cover is provided with many connecting rods that extend along the radial direction of threaded connection cover around its central line direction is even interval on the cover body, and the connecting rod towards the one end and the threaded connection cover fixed connection of threaded connection cover, and the connecting rod butt is in annular core board back to on one side of center support pipe.

3. A casing pressure delivery apparatus according to claim 2, wherein: an adjusting pipe is fixedly connected to one end, far away from the threaded connecting sleeve, of the connecting rod, the central line of the adjusting pipe is parallel to the central line of the threaded connecting sleeve, an adjusting screw rod is arranged at one end, back to the annular core plate, of the adjusting pipe, an adjusting thread extending from one end, back to the annular core plate, of the adjusting pipe in the central line direction of the adjusting pipe is arranged on the inner wall of the adjusting pipe, one end of the adjusting screw rod extends into the corresponding adjusting pipe and is matched with the threads of the adjusting pipe through the adjusting thread, a supporting push rod is arranged at one end, facing the annular core plate, of the adjusting pipe, one end of the supporting push rod is inserted into the corresponding adjusting pipe and can be in sliding fit with the corresponding adjusting pipe in the central line direction of the adjusting pipe, the other end of the supporting push rod abuts against the annular core plate, and a supporting spring is arranged in the adjusting pipe and between the supporting push rod and the adjusting screw rod, two ends of the supporting spring are respectively abutted against the supporting push rod and the adjusting screw rod.

4. A casing pressure delivery apparatus according to claim 3, wherein: the adjusting screw is located one end outside the adjusting pipe is outwards protruded along the direction of the central line of the adjusting pipe to form a twisting part, and at least two twisting surfaces which are parallel to each other and are parallel to the central line of the adjusting screw are arranged on the twisting part.

5. A casing pressure delivery apparatus according to claim 3, wherein: the connecting position of the adjusting pipe and the connecting rod is located in the middle of the adjusting pipe along the length direction of the adjusting pipe, one end of the connecting rod, which is located at the adjusting pipe, is provided with two right-angle triangular rib plates, the two right-angle triangular rib plates are located at two sides of the connecting rod along the central line direction of the adjusting pipe, the plane of the right-angle triangular rib plates is located on the same plane as the central line of the connecting rod and the central line of the adjusting pipe, which correspond to the plane of the right-angle triangular rib plates, and the two right-angle sides of the right-angle triangular rib plates are fixedly connected with the connecting rod and the adjusting pipe, which correspond to the connecting rod.