阅读说明：本技术 一种高大钢管混凝土柱顶升泵灌砼装置及其施工方法 (Concrete pouring device for jacking pump of tall steel pipe concrete column and construction method of concrete pouring device ) 是由 曾文 吴紫晨 王鹏飞 关志新 汤景林 王牧 曲宁 于 2021-08-25 设计创作，主要内容包括：本申请公开了一种高大钢管混凝土柱顶升泵灌砼装置,其包括可拆卸连接于钢管上的支撑壳体,支撑壳体上可拆卸连接有与其内腔连通的输送管,支撑壳体中竖向滑移连接有用于控制浇灌孔开闭的阀板,支撑壳体上外侧设置有用于驱动阀板向上移动的液压缸,具有提高了钢管混凝土柱顶升泵灌砼的工作效率的效果。本申请还公开了一种高大钢管混凝土柱顶升泵灌砼的施工方法,主要包括以下步骤：S1、管路连接；S2、混凝土泵送顶升；S3、拆除管路；S4、拆除支撑壳体；S5、补焊圆孔；S6、补焊封顶板。具有施工顺序合理,提高了施工效率的效果。(The application discloses concrete device is irritated to tall and big steel core concrete column jacking pump, it is including dismantling the support housing who connects on the steel pipe, can dismantle on the support housing and be connected with the conveyer pipe rather than the inner chamber intercommunication, vertical sliding is connected with the valve plate that is used for controlling the opening and closing of watering hole in the support housing, the outside is provided with the pneumatic cylinder that is used for driving the valve plate rebound on the support housing, has the effect that has improved the work efficiency that the concrete is irritated to steel core concrete column jacking pump. The application also discloses a construction method for jacking, pumping and pouring concrete of the tall steel pipe concrete column, which mainly comprises the following steps: s1, connecting a pipeline; s2, concrete pumping and jacking; s3, removing the pipeline; s4, removing the support shell; s5, repair welding the round hole; and S6, repair welding the top sealing plate. The construction method has the advantages of reasonable construction sequence and improvement of construction efficiency.)

1. The utility model provides a concrete device is irritated to big steel core concrete column jacking pump which characterized in that: comprises a supporting shell (2) which is detachably connected with a steel pipe (1), wherein the steel pipe (1) is provided with a pouring hole (11), the inner cavity of the supporting shell (2) is communicated with the inner cavity of the steel pipe (1) through a pouring hole (11), the supporting shell (2) is detachably connected with a conveying pipe (3) communicated with the inner cavity of the supporting shell, one end of the delivery pipe (3) back to the support shell (2) is communicated with a pump pipe (4), a valve plate (5) used for controlling the opening and closing of the pouring hole (11) is connected in the supporting shell (2) in a vertical sliding way, a hydraulic cylinder (25) for driving the valve plate (5) to move upwards is arranged on the outer side of the supporting shell (2), and a sealing assembly (6) for sealing between the stress surface (51) of the valve plate (5) and the inner side wall of the support shell (2) is arranged in the support shell (2).

2. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 1, which is characterized in that: the side surface of the valve plate (5) facing the pouring hole (11) is coated with a coating for blocking the valve plate from concrete.

3. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 1, which is characterized in that: the side of the valve plate (5) back to the pouring hole (11) is provided with a stress surface (51), the stress surface (51) is provided with an inclined surface, and the distance between the stress surface (51) and the axis of the steel pipe (1) is gradually reduced from top to bottom.

4. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 3, which is characterized in that: sealing assembly (6) including setting firmly fixed plate (61) on supporting housing (2) lateral wall and sliding connection butt joint board (62) on fixed plate (61), the one end of butt joint board (62) fixed plate (61) dorsad has set firmly sealed the pad (63), sealed pad (63) butt in stress surface (51) of valve plate (5), be provided with on fixed plate (61) and be used for applying the effort towards valve plate (5) and then make sealed first spring (64) of pad (63) butt on valve plate (5) to butt joint board (62).

5. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 1, which is characterized in that: a second spring (7) for applying a downward acting force to the valve plate (5) is arranged in the support housing (2).

6. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 1, which is characterized in that: the valve plate (5) top sets firmly guide bar (53) of vertical setting, support casing (2) inboard is equipped with the guide external member (54) of cover locating guide bar (53) outside, guide bar (53) and guide external member (54) slide and are connected.

7. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 6, which is characterized in that: the guide sleeve piece (54) comprises a plurality of abutting blocks (542) which are uniformly distributed at intervals along the circumferential direction of the guide rod (53), a plurality of balls (544) are connected to the abutting blocks (542) in a rolling mode, and the balls (544) abut against the outer surface of the guide rod (53).

8. The concrete pumping device for jacking the tall steel pipe concrete column according to claim 7, which is characterized in that: the abutting block (542) is connected to the supporting housing (2) through an elastic piece (543), and the elastic piece (543) is used for applying an acting force to the abutting block (542) towards the guide rod (53).

9. A construction method for a concrete pouring device by using the jacking pump of the tall steel pipe concrete column as claimed in any one of claims 1 to 8, which is characterized by mainly comprising the following steps:

s1, pipeline connection: the supporting shell (2) is detachably connected to the outer side of the steel pipe (1), so that the inner cavity of the supporting shell (2) is communicated with the inner cavity of the steel pipe (1) through a pouring hole (11), and the conveying pipe (3) is connected with a pump truck through a pump pipe (4);

s2, concrete pumping and jacking: pumping and jacking the concrete, and opening the valve plate (5) under the action of the hydraulic cylinder (25); after concrete pouring is finished, the hydraulic cylinder (25) is controlled to enable the rod part to be retracted, the valve plate (5) moves downwards under the action of self gravity until the bottom end of the valve plate (5) is abutted against the bottom wall of the inner cavity of the supporting shell (2), and the pouring hole (11) is closed;

s3, dismantling the pipeline: the conveying pipe (3) is detached from the supporting shell (2), and the conveying pipe (3) is moved to the next steel pipe (1) for connection;

s4, removing the support shell (2): after the strength of the core concrete reaches the standard, the supporting shell (2) is dismantled from the steel pipe (1);

s5, repair welding the round hole;

and S6, repair welding the top sealing plate.

Technical Field

The application relates to the technical field of concrete-filled steel tube jacking equipment, in particular to a concrete pouring device for a jacking pump of a tall concrete-filled steel tube column and a construction method of the concrete pouring device.

Background

The steel pipe concrete structure is that concrete is filled in a steel pipe, and two materials with different properties are combined into an integral composite structure. The steel pipe concrete structure can more effectively exert the respective advantages of steel and concrete, and simultaneously overcomes the defect that the steel pipe structure is easy to partially buckle. In recent years, with the deep theoretical research and the generation of new construction processes, engineering application is increasingly wide.

In the construction process of the high and large steel pipe concrete column in the related technology, a pumping jacking method that a temporary pouring hole is formed at the lower part of a steel pipe and concrete is poured from bottom to top by a concrete pump is adopted for construction. In the construction process, a conveying pipe needs to be welded at the pouring hole, then the pump pipe is connected to one end, back to the steel pipe, of the conveying pipe, and finally the concrete is jacked through the pump truck.

With respect to the above-described related art, the inventors consider that the following drawbacks exist: after concrete pouring and jacking are completed, after concrete needs to be solidified, the conveying pipe welded on the steel pipe is detached through equipment such as a cutting machine, and then the concrete column extending out of the steel pipe is removed, so that the steps are complex, and the construction efficiency needs to be improved.

Disclosure of Invention

In order to improve the working efficiency of concrete pouring of a jacking pump of a steel pipe concrete column, the application provides a concrete pouring device of the jacking pump of the tall steel pipe concrete column and a construction method thereof.

The application provides a high and large steel pipe concrete column jacking pump concrete pouring device and construction method thereof adopts following technical scheme:

the utility model provides a concrete device is irritated to tall and big steel core concrete column jacking pump, is including dismantling the support housing who connects on the steel pipe, the hole of watering has been seted up on the steel pipe, the inner chamber intercommunication of support housing through watering hole and steel pipe, the conveyer pipe that is connected with rather than the inner chamber intercommunication can be dismantled on the support housing, the conveyer pipe supports the one end intercommunication of housing dorsad and has the pump line, vertical sliding is connected with the valve plate that is used for controlling watering hole switching in the support housing, the last outside of support housing is provided with the pneumatic cylinder that is used for driving the valve plate rebound, be provided with in the support housing and be used for the tight seal assembly between the stress surface of valve plate and the inside wall of support housing.

Through adopting above-mentioned technical scheme, be connected the pump line with the pump truck, pneumatic cylinder drive valve plate rebound opens the watering hole, the concrete is in proper order via the pump line, conveyer pipe and support casing are carried to the steel pipe at last, after the concrete jacking is accomplished, the pole portion of pneumatic cylinder is withdrawed, the valve plate moves down under the effect of self gravity and closes the watering hole, thereby block the inner chamber of support casing and the inner chamber of steel pipe, demolish the conveyer pipe from the support casing this moment, move the conveyer pipe to next steel pipe department and use, treat that the concrete solidifies the back, pull down the support casing on the steel pipe again, need not to wait to demolish the conveyer pipe again after the concrete solidifies, the step is simple, the work efficiency is improved, the reuse of conveyer pipe has been realized simultaneously.

Preferably, the side of the valve plate facing the pouring opening is coated with a coating for blocking it from the concrete.

Through adopting above-mentioned technical scheme, block valve plate orientation pouring hole's lateral wall and concrete, with valve plate and concrete separation when convenient to detach supports the casing.

Preferably, the side of the valve plate back to the pouring hole is provided with a stress surface, the stress surface is provided with an inclined surface, and the distance between the stress surface and the axis of the steel pipe is gradually reduced from top to bottom.

Through adopting above-mentioned technical scheme, the pump sending exerts the effort to the stress surface of valve plate to the concrete in supporting the casing, and the stress surface that the slope set up makes the valve plate have the trend of rebound under the effect of concrete, and then has reduced the required effort of pneumatic cylinder jacking valve plate, has practiced thrift the energy.

Preferably, the sealing assembly comprises a fixing plate fixedly arranged on the side wall of the supporting shell and a butt joint plate connected to the fixing plate in a sliding mode, a sealing pad is fixedly arranged at one end, back to the fixing plate, of the butt joint plate, the butt joint of the sealing pad is arranged on a stress surface of the valve plate, and a first spring used for applying acting force towards the valve plate to the butt joint plate and enabling the sealing pad to butt against the valve plate is arranged on the fixing plate.

Through adopting above-mentioned technical scheme, sealed the face of meeting an urgent need in the valve plate of sealed pad under the effect of first spring, realize the sealed between the inside wall of the face of meeting an urgent need of valve plate and support casing, reduced the condition that the concrete overflow reaches the support casing outside.

Preferably, a second spring for applying a downward force to the valve plate is provided in the support housing.

Through adopting above-mentioned technical scheme, the second spring exerts decurrent effort to the valve plate, and concrete placement accomplishes the back, and the valve plate will water the hole and close, and the valve plate bottom butt compresses tightly in the diapire of supporting the casing under the effect of second spring, has improved the leakproofness, has reduced the condition of concrete overflow.

Preferably, the valve plate top sets firmly the guide bar of vertical setting, the support casing inboard is equipped with the guide external member of cover locating the guide bar outside, the guide bar slides with the guide external member and is connected.

Through adopting above-mentioned technical scheme, the cooperation of direction external member and guide bar has played the guide effect to the removal of valve plate.

Preferably, the direction external member includes a plurality of butt pieces of interval equipartition in the circumference of following the guide bar, and roll connection has a plurality of balls on the butt piece, the ball butt is in the surface of guide bar.

Through adopting above-mentioned technical scheme, the setting up of ball has reduced the frictional force between guide bar and the direction external member, and the guide bar and the valve plate of being convenient for remove.

Preferably, the abutment block is connected to the support housing by an elastic member for applying a force to the abutment block toward the guide bar.

Through adopting above-mentioned technical scheme, the setting up of elastic component makes the ball keep with the state of the lateral wall butt of guide bar, has strengthened the guide effect of direction external member to the guide bar.

A construction method for jacking, pumping and pouring concrete of a tall steel pipe concrete column mainly comprises the following steps:

s1, pipeline connection: the support shell is detachably connected to the outer side of the steel pipe, so that the inner cavity of the support shell is communicated with the inner cavity of the steel pipe through a pouring hole, and the conveying pipe is connected with the pump truck through the pump pipe;

s2, concrete pumping and jacking: pumping and jacking the concrete, and opening the valve plate under the action of the hydraulic cylinder; after concrete pouring is finished, the hydraulic cylinder is controlled to enable the rod part of the hydraulic cylinder to be retracted, the valve plate moves downwards under the action of self gravity until the bottom end of the valve plate is abutted against the bottom wall of the inner cavity of the supporting shell, and a pouring hole is closed;

s3, dismantling the pipeline: the conveying pipe is detached from the supporting shell, and the conveying pipe is moved to the next steel pipe for connection;

s4, dismantling the supporting shell: after the strength of the core concrete reaches the standard, the supporting shell is dismantled from the steel pipe;

s5, repair welding the round hole;

and S6, repair welding the top sealing plate.

By adopting the technical scheme, the concrete pouring jacking of the concrete-filled steel tubular column is realized, the construction sequence is reasonable, and the construction efficiency is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the concrete conveying device is characterized in that a pump pipe is connected with a pump truck, a hydraulic cylinder drives a valve plate to move upwards to open a pouring hole, concrete is conveyed to a steel pipe through the pump pipe, a conveying pipe and a support shell in sequence, after the concrete is lifted, a rod part of the hydraulic cylinder is retracted, the valve plate moves downwards under the action of self gravity to close the pouring hole, so that an inner cavity of the support shell is blocked with an inner cavity of the steel pipe, the conveying pipe is detached from the support shell at the moment, the conveying pipe is moved to the next steel pipe for use, after the concrete is solidified, the support shell is detached from the steel pipe, the conveying pipe is not required to be detached after the concrete is solidified, the steps are simple, the working efficiency is improved, and meanwhile, the conveying pipe is recycled;

2. the side wall of the valve plate facing the pouring hole is blocked from the concrete by the coating, so that the valve plate is conveniently separated from the concrete when the support shell is detached;

3. the pump sending exerts the effort to the stress surface of valve plate to the concrete in the support housing, and the stress surface that the slope set up makes the valve plate have the trend of rebound under the effect of concrete, and then has reduced the required effort of pneumatic cylinder jacking valve plate, has practiced thrift the energy.

Drawings

Fig. 1 is a schematic view of the overall structure in the present application.

Fig. 2 is a schematic structural diagram showing a hoop structure in the present application.

FIG. 3 is a schematic drawing in partial cross-section showing the structure of the support housing, valve plate, seal assembly and second spring in this application.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 3.

FIG. 6 is a partial schematic view of the locking assembly of the present application in a locked condition.

FIG. 7 is a partial schematic view of the locking assembly of the present application in an unlocked position.

Description of reference numerals: 1. a steel pipe; 11. pouring holes; 2. a support housing; 21. hooping; 211. an arc-shaped plate; 22. a first connection hole; 23. a second connection hole; 24. connecting grooves; 25. a hydraulic cylinder; 3. a delivery pipe; 4. a pump tube; 5. a valve plate; 51. a stress surface; 52. an extension support plate; 53. a guide bar; 531. flanging; 54. a guide sleeve member; 541. a fixed block; 542. a butting block; 543. an elastic member; 5431. an arcuate bar; 544. a ball bearing; 6. a seal assembly; 61. a fixing plate; 62. a butt joint plate; 63. a gasket; 64. a first spring; 7. a second spring; 71. a vertical rod; 8. a locking assembly; 81. a lower lock plate; 82. a locking groove; 821. an upper groove; 822. a lower groove; 83. connecting the flat plates; 831. a large end; 832. a small end; 84. an upper lock plate; 85. a vertical plate; 86. and locking the bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a concrete pumping and pouring device for jacking a tall steel pipe concrete column and a construction method thereof.

The utility model provides a concrete device is irritated to tall and big steel core concrete column jacking pump, combines fig. 1 and fig. 2, including dismantling the support casing 2 of connecting in 1 outer peripheral face of steel pipe, the cavity of the inner chamber of support casing 2 just is the rectangle setting, and support casing 2 is close to the arc inner concave surface of the inside sunken formation of one side of steel pipe 1 and the outer peripheral face laminating of steel pipe 1. The outer side wall of the supporting shell 2 is provided with a plurality of hoops 21, and the hoops 21 are uniformly distributed along the vertical direction at intervals. Staple bolt 21 includes two and support casing 2 articulated arc 211, and two arc 211 symmetries set up and all encircle the outer peripheral face of butt in steel pipe 1, and the free end of two arc 211 compresses tightly the connection through the cooperation of bolt and nut.

Referring to fig. 2 and 3, a pouring hole 11 is formed in the steel pipe 1, and the pouring hole 11 is a circular through hole. Support casing 2 and be close to one side of steel pipe 1 and seted up first connecting hole 22, support casing 2 has seted up second connecting hole 23 to one side of steel pipe 1 dorsad, and first connecting hole 22 and second connecting hole 23 all set up to circular shape through-hole, and first connecting hole 22 and second connecting hole 23 all with watering hole 11 coaxial setting and with watering hole 11's diameter the same.

The outside of the second connecting hole 23 on the support shell 2 is detachably connected with the conveying pipe 3 through a flange, and the conveying pipe 3 is communicated with the inner cavity of the support shell 2 through the second connecting hole 23. One end of the delivery pipe 3, which is back to the support shell 2, is connected with a flexible pump pipe 4, and one end of the pump pipe 4, which is back to the delivery pipe 3, is connected with a pump truck.

Be connected with the valve plate 5 that is used for controlling the switching of watering hole 11 along vertical sliding in support housing 2, valve plate 5 is towards the arcwall face of watering hole 11's side for the inside wall laminating with support housing 2, valve plate 5 sets up the stress surface 51 to valve plate 5 dorsad watering hole 11's side, leave the distance between stress surface 51 and support housing 2's the inside wall, stress surface 51 slope sets up, and the distance top-down between stress surface 51 and the axis of steel pipe 1 reduces gradually, the both sides of 5 horizontal directions of valve plate respectively with two inside wall contacts of support housing 2, 5 bottom mounting of valve plate has the sealing strip, when valve plate 5 will water watering hole 11 and close, the sealing strip butt is in support housing 2's inner chamber diapire.

The connecting groove 24 of vertical setting is seted up to one side that support housing 2 dorsad steel pipe 1, and the extension board 52 that the level set up is connected to the stress surface 51 top fixed connection of valve plate 5, and the one end that extends extension board 52 dorsad valve plate 5 passes the connecting groove 24 and stretches out in the inner chamber of support housing 2, and extends extension board 52 and connecting groove 24 and slide and be connected. A vertically arranged hydraulic cylinder 25 is fixed on the outer side wall of the support housing 2, and the rod part of the hydraulic cylinder 25 abuts against the lower surface of the extension support plate 52.

Before pumping the concrete, the hydraulic cylinder 25 is started, and the extension support plate 52 and the valve plate 5 are moved upwards under the action of the hydraulic cylinder 25 until the pouring hole 11 is completely opened. In the pumping process of the concrete, the concrete exerts acting force on the stress surface 51, so that the valve plate 5 tends to move upwards under the action of the concrete, the acting force required by the hydraulic cylinder 25 for jacking the valve plate 5 is reduced, and the energy is saved. After concrete pumping is completed, the rod part of the hydraulic cylinder 25 is retracted, the valve plate 5 moves downwards under the action of self gravity to abut against the bottom wall of the sealing strip at the bottom end of the valve plate and the bottom wall of the inner cavity of the support shell 2, the pouring hole 11 is closed, and therefore the inner cavity of the support shell 2 and the inner cavity of the steel pipe 1 are blocked. At this time, the carrier pipe 3 is removed from the support housing 2, and after the concrete is solidified, the support housing 2 is removed from the steel pipe 1.

The side of the valve plate 5 facing the pouring hole 11 is coated with a polyurethane waterproof coating, the polyurethane waterproof coating is used for blocking the valve plate 5 and concrete, and the valve plate 5 is separated from the concrete when the support shell 2 is convenient to detach.

With reference to fig. 3 and 4, the support housing 2 is provided with a sealing assembly 6 on its side wall facing the force-bearing surface 51 of the valve plate 5, the sealing assembly 6 being located above the second connection hole 23. The sealing assembly 6 comprises a fixing plate 61 fixed on the supporting shell 2, the fixing plate 61 is a U-shaped plate with an opening facing the stress surface 51, a butt plate 62 is connected in the fixing plate 61 in a sliding mode, and two side faces of the horizontal top and back of the fixing plate 61 and two side faces of the horizontal back of the butt plate 62 are respectively abutted to two inner side faces of the supporting shell 2. The one end of butt joint board 62 orientation stress surface 51 is fixed with sealed the pad 63, has a plurality of first springs 64 along its length direction interval equipartition in the inner chamber of fixed plate 61, and first spring 64 is used for applying the effort to butt joint board 62, makes sealed pad 63 butt compress tightly on the stress surface 51 of valve plate 5, has realized sealed between stress surface 51 and the inside wall of supporting housing 2, has reduced the concrete and has passed through the condition that spread groove 24 overflow to the supporting housing 2 outside.

With reference to fig. 3 and 5, a vertically arranged guide rod 53 is fixed at the top end of the valve plate 5, an inner cavity of the guide rod 53 is hollow, a flanging is outwardly extended at the top end of the guide rod 53, and a guide sleeve 54 coaxially arranged with the guide rod 53 is sleeved on the outer side of the guide rod 53. The guide kit 54 includes two fixing blocks 541 fixedly connected to and supported on the inner side wall of the housing 2, and the two fixing blocks 541 are uniformly distributed along the circumferential direction of the guide rod 53. The fixed block 541 is elastically connected with a butting block 542 through an elastic piece 543, the sidewall of the butting block 542 back to the elastic piece 543 is connected with a plurality of balls 544 in a rolling manner, and the balls 544 abut against the outer surface of the guide rod 53. The elastic member 543 includes a plurality of elastic rods which are circumferentially and evenly distributed, and the elastic rods are arranged as outward convex arc-shaped rods 5431.

The support shell 2 is provided with a second spring 7 for applying downward acting force to the valve plate 5, and two ends of the second spring 7 are respectively abutted against the top wall of the inner cavity of the support shell 2 and the upper surface of the flanging. After concrete pouring is finished, the valve plate 5 closes the pouring hole 11, the sealing strip at the bottom end of the valve plate 5 is abutted and pressed on the bottom wall of the supporting shell 2 under the action of the second spring 7, sealing performance is improved, and the condition that concrete overflows from the inner cavity of the steel pipe 1 to the supporting shell 2 is reduced.

The inner side of the second spring 7 is provided with a vertical rod 71 for guiding the second spring, the top end of the vertical rod 71 is fixed on the support shell 2, the bottom end of the vertical rod 71 extends into the inner cavity of the guide rod 53 and is connected with the guide rod 53 in a sliding manner, and meanwhile, the valve plate 5 is further guided by the matching of the vertical rod 71 and the guide rod 53.

With reference to fig. 1, 6 and 7, a locking assembly 8 is provided between the valve plate 5 and the support housing 2, the locking assembly 8 being located above the sealing assembly 6. The locking assembly 8 includes a lower locking plate 81 fixedly attached to the force-bearing surface 51 of the valve plate 5, the lower locking plate 81 being disposed to be inclined upward from one end adjacent to the valve plate 5 to the other end. The locking assembly 8 further comprises two locking grooves 82 which are arranged on the side wall of the support shell 2 opposite to the steel pipe 1, and the two locking grooves 82 are symmetrically arranged on two sides of the hydraulic cylinder 25. The locking groove 82 is a through groove provided in a T shape, and the locking groove 82 includes an upper groove 821 and a lower groove 822. The locking groove 82 is slidably connected with a connecting flat plate 83, one end of the connecting flat plate 83 close to the valve plate 5 is provided with a large end 831 matched with the upper groove 821, and the other end of the connecting flat plate 83 is provided with a small end 832 matched with the lower groove 822. The large ends 831 of the two connecting plates 83 are jointly fixed with the same upper locking plate 84, the upper locking plate 84 corresponds to the lower locking plate 81, the upper locking plate 84 is obliquely arranged and has the same inclination angle with the lower locking plate 81, and the upper locking plate 84 and the lower locking plate 81 are both rigid plates. When the locking assembly 8 is in the locked state, the two opposite surfaces of the upper locking plate 84 and the lower locking plate 81 abut against each other, and the lower locking plate 81 and thus the valve plate 5 are restricted from moving upward. The small end 832 of the connecting plate 83 extends out of the inner cavity of the supporting housing 2 and is fixedly connected with a vertical plate 85, the vertical plate 85 is in threaded connection with a locking bolt 86 perpendicular to the side wall of the supporting housing 2, and when the locking assembly 8 is in a locking state, the locking bolt 86 is in threaded connection with the supporting housing 2.

When the locking assembly 8 is in the unlocked state, the large end 831 of the connecting plate 83 is slidably connected to the upper groove 821, the upper lock plate 84 is separated from the lower lock plate 81, and the upper lock plate 84 does not affect the movement of the lower lock plate 81 in the vertical direction. Since the extension support plate 52 extends out of the support housing 2, it is easy to accidentally shift under the action of external force, and further, the valve plate 5 is driven to move, so as to cause concrete overflow. When the valve plate 5 closes the pouring hole 11, and the bottom end of the valve plate 5 abuts against the bottom wall of the inner cavity of the support housing 2, the connecting plate 83 is pushed towards the valve plate 5, so that the large end 831 of the connecting plate 83 is completely moved into the inner cavity of the support housing 2 to be separated from the locking groove 82, at this time, the connecting plate 83 is moved downwards to enable the small end 832 of the connecting plate 83 to enter the locking groove 82 until the two opposite surfaces of the upper locking plate 84 and the lower locking plate 81 abut against each other, the locking bolt 86 is screwed up to enable the locking bolt 86 to be in threaded connection with the support housing 2, the upward movement of the lower locking plate 81 is limited, and the situation that the pouring hole 11 is accidentally opened due to the upward movement of the valve plate 5 under the action of external force is further limited.

With reference to fig. 1 to 7, the present application further discloses a construction method for jacking and pumping concrete in a tall steel pipe concrete column, which comprises the following steps:

s1, checking the axis and elevation of the steel column: punching an elevation control line on the steel column to enable the position of the opening of the pouring hole 11 to be 80 centimeters above the ground elevation, and opening the opening on the side wall of the steel pipe 1 after the position of the opening is determined;

s2, pipeline connection: the support shell 2 is detachably connected to the outer side of the steel pipe 1 through an anchor ear 21, so that the inner cavity of the support shell 2 is communicated with the inner cavity of the steel pipe 1 through a pouring hole 11, and the conveying pipe 3 is connected with a pump truck through a pump pipe 4;

s3, pumping and jacking water lubricating pipe walls: releasing the locking assembly 8, jacking water, replacing concrete with water for pressurizing and jacking until the water overflows from the top of the steel pipe 1, jacking and pressurizing, forming a small hole at the bottom of the steel pipe 1 to drain the water, welding and repairing, and then jacking the concrete;

s4, concrete pumping and jacking: pumping and jacking concrete, enabling the concrete to enter the steel pipe 1 through the pump pipe 4, the delivery pipe 3 and the support shell 2 in sequence, and stopping the pump truck in time after the concrete overflows;

s5, dismantling the pipeline: after concrete pouring is finished, the hydraulic cylinder 25 is controlled to enable the rod portion of the hydraulic cylinder to be recovered, the valve plate 5 moves downwards under the action of self gravity and the second spring 7, a sealing strip at the bottom end of the valve plate 5 abuts against the bottom wall of the inner cavity of the supporting shell 2, the pouring hole 11 is closed, the conveying pipe 3 is detached from the supporting shell 2 at the moment, and the conveying pipe 3 is moved to the position of the next steel pipe 1 to be connected;

s6, removing the support case 2: after the strength of the core concrete reaches 70%, the support shell 2 is dismantled from the steel pipe 1;

s7, repair welding of round holes: and (5) performing repair welding on the pipe wall at the pouring hole 11 on the steel pipe 1, and performing grinding and paint repair.

S8, repair welding of a top sealing plate: and after the concrete is cured for 28 days, welding a top sealing plate according to the standard requirement.

The implementation principle of the jacking pump concrete pouring device for the tall steel pipe concrete column and the construction method thereof in the embodiment of the application is as follows:

connecting the pump pipe 4 with a pump truck, releasing the locking assembly 8, driving the valve plate 5 to move upwards by the hydraulic cylinder 25 to open the pouring hole 11, conveying the concrete to the steel pipe 1 through the pump pipe 4, the conveying pipe 3 and the support shell 2 in sequence, withdrawing the rod part of the hydraulic cylinder 25 after the concrete is jacked up, moving the valve plate 5 downwards under the action of self gravity and the second spring 7 to close the pouring hole 11, abutting a sealing strip at the bottom end of the valve plate 5 with the bottom wall of the inner cavity of the support shell 2 under the action of the second spring 7 to close the pouring hole 11, so as to block the inner cavity of the support shell 2 from the inner cavity of the steel pipe 1, detaching the conveying pipe 3 from the support shell 2, moving the conveying pipe 3 to the next steel pipe 1 for use, detaching the support shell 2 from the steel pipe 1 after the concrete is solidified, and detaching the conveying pipe 3 after the concrete is not solidified, the steps are simple, the working efficiency is improved, and the recycling of the conveying pipe 3 is realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.