Slip form device of vertical shaft

Abstract

The invention relates to a slip form device of a vertical shaft. The method is suitable for the technical field of shaft construction. According to the technical scheme, the device comprises a supporting platform, wherein a material distributing mechanism is arranged at the top of the supporting platform; the platform telescopic mechanisms are arranged on the supporting platform, the platform telescopic mechanisms are arranged in the radial direction of the supporting platform, the platform telescopic mechanisms are evenly distributed in the circumferential direction around the central axis of the supporting platform, and the platform telescopic mechanisms can abut against the inner wall of the vertical shaft through telescopic movement to form an auxiliary platform; the auxiliary platform is matched with the supporting platform to form a working platform for shaft operation; the platform lifting mechanisms are arranged at the outer edge ends of the platform telescopic mechanisms, the platform lifting mechanisms and the platform telescopic mechanisms are in one-to-one correspondence, the platform lifting mechanisms are at least partially buried in the inner wall of the vertical shaft, and the platform lifting mechanisms can be supported by the inner wall of the vertical shaft to lift the height of the working platform.

Description

Technical Field

[0001] The invention relates to the technical field of shaft construction, in particular to a slipform device for a shaft. Background Art

[0002] At present, when lining a shaft, a segmented construction method is adopted. First, a working platform is placed in the shaft, and after lining the inner wall of the shaft around the working platform, the working platform is moved upward, and lining is performed on the corresponding position of the inner wall of the shaft after the movement.

[0003] However, the construction of some special-shaped shafts, such as funnel-shaped shafts, has the following problems:

[0004] (1) Since the cross-sectional dimensions of the funnel-shaped shaft are constantly changing, the difficulty of the shaft inner wall lining operation is greatly increased, and the appearance quality control of the shaft inner wall lining is also difficult;

[0005] (2) In most vertical shaft construction, it is necessary to arrange a traction mechanism outside the vertical shaft, and use the traction mechanism to pull the working platform to move inside the vertical shaft. This method occupies a large amount of construction site and has a certain impact on on-site construction. Summary of the invention

[0006] The technical problem to be solved by the present invention is: to provide a slipform device for a vertical shaft in view of the above-mentioned existing problems.

[0007] The technical solution adopted by the present invention is: a slipform device for a vertical shaft, characterized in that it comprises:

[0008] A supporting platform with a cloth distributing mechanism on the top;

[0009] A platform telescopic mechanism is provided on the support platform, the platform telescopic mechanism is arranged along the radial direction of the support platform, the platform telescopic mechanism is evenly distributed circumferentially around the central axis of the support platform, the platform telescopic mechanism can abut against the inner wall of the shaft through telescopic movement and form an auxiliary platform, and the auxiliary platform cooperates with the support platform to form a working platform for the shaft operation;

[0010] A platform lifting mechanism is arranged at the outer edge end of the platform telescopic mechanism. The platform lifting mechanism corresponds to the platform telescopic mechanism one by one. The platform lifting mechanism is at least partially buried in the inner wall of the shaft. The platform lifting mechanism can raise the height of the working platform under the support of the inner wall of the shaft.

[0011] Through the above technical means, the platform telescopic mechanism is utilized to extend the support platform and abut against the inner wall of the shaft, and the platform lifting mechanism is at least partially buried in the inner wall of the shaft, so that the inner wall of the shaft can provide vertical support for the support platform as a whole, and the telescopic mechanism of the platform is utilized to adapt to the situation of the shaft diameter change, and the formed working platform can keep cooperation with the inner wall of the shaft to facilitate the operation of the construction personnel, and the inner wall of the shaft can be poured by utilizing the material placing mechanism, thereby improving the adaptability to the lining of the inner wall of the shaft with variable diameter.

[0012] In some embodiments, the platform telescopic mechanism includes a telescopic truss, a first driving member and a telescopic connection assembly. A first slide groove is radially provided in the support platform, and the telescopic truss is slidably connected in the first slide groove. The first driving member connected to the telescopic truss is installed in the support platform. The first driving member is used to drive the telescopic truss to telescope along the first slide groove. The ends of adjacent telescopic trusses are connected via the telescopic connection assembly, and the telescopic connection assembly can adapt to the size change of the inner wall of the shaft by telescoping.

[0013] In some embodiments, the telescopic connection assembly includes a transverse rib plate and an extending plate. The transverse rib plate is installed at the end of the telescopic truss, and the extending plate is provided between adjacent transverse rib plates. A second sliding groove is formed on the side of the extending plate facing the inner wall of the shaft, and two adjacent transverse rib plates are slidably connected in the second sliding groove, and the transverse rib plate and the extending plate are fixed via fixing parts.

[0014] In some embodiments, the fixing member is a bolt, and the bolt is inserted into the second slide groove to fix the extended plate and the transverse rib plate together.

[0015] In some embodiments, the first driving member is a telescopic jack.

[0016] In some embodiments, the platform lifting mechanism includes a support rod and a second driving member, the ends of the telescopic truss are correspondingly installed with the second driving member, the support rod and the second driving member are connected one by one, the support rod is arranged along the full length of the shaft, the bottom of the support rod is at least partially buried in the concrete layer of the inner wall of the shaft, and the second driving member is used to lift the height of the working platform along the support rod.

[0017] In some embodiments, the second driving member adopts a through-type jack, and the support rod is connected through the through-type jack.

[0018] In some embodiments, the material distribution mechanism includes: a receiving hopper, a chute, and a fixed frame. The chute is installed on the inner wall of the shaft near the entrance end through the fixed frame. The receiving hopper is provided at the entrance end of the chute, and the outlet end of the chute faces the inner wall of the shaft.

[0019] In some embodiments, the material distribution mechanism also includes a first chute, a distributor, a mounting bracket and a plurality of second chutes. The distributor is installed on the top of the support platform via the mounting bracket. The first end of the first chute is arranged below the outlet end of the chute, the second end of the first chute is arranged at the inlet end of the distributor, the first ends of the plurality of second chutes are arranged at the outlet end of the distributor, and the second ends of the plurality of second chutes are arranged on the inner walls around the shaft.

[0020] In some embodiments, a first construction platform is provided on the auxiliary platform, a second construction platform is provided above the auxiliary platform, and a third construction platform is provided below the auxiliary platform, and the first construction platform, the second construction platform and the third construction platform are all connected via ladders;

[0021] The first construction platform is used by construction workers to perform lining operations on concrete slurry, the second construction platform is used by construction workers to perform extension operations on steel bars, and the third construction platform is used by construction workers to perform lining and finishing operations.

[0022] The beneficial effects of the present invention are:

[0023] 1. The platform lifting mechanism is at least partially buried in the inner wall of the shaft, and the inner wall of the shaft is used to provide vertical support for the overall structure. The platform telescopic mechanism is used to slide and telescope in the support platform along its radial direction to adapt to the diameter change of the funnel-shaped shaft, so that the working platform can cooperate with the inner wall of the shaft when it is in various positions of the shaft, and the platform telescopic mechanism abuts against the inner wall of the shaft to cooperate with the platform lifting mechanism to provide fixed support for the overall structure. The inner wall of the shaft can be lined by the material placing mechanism, and then the height of the overall structure is raised by the platform lifting mechanism, and the cycle is repeated until the lining construction of the inner wall of the shaft is completed.

[0024] 2. This device buries part of the platform lifting mechanism in the inner wall of the shaft, uses the inner wall of the shaft to provide vertical support for the overall structure, reduces the use of the traction mechanism, and uses the platform telescopic mechanism to abut the inner wall of the shaft and fix the support. Through the cooperation of the platform telescopic mechanism and the platform lifting mechanism, it is ensured that the overall structure has sufficient supporting strength, which not only reduces the occupation of the traction mechanism on the construction site, but also reduces the project cost and improves the efficiency of on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure of the present application at the upper position of the shaft.

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the present application at the lower position of the shaft.

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the present application at the upper position of the shaft.

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the present application at the lower position of the shaft.

[0029] Description of reference numerals:

[0030] 1. Receiving hopper; 2. Chute; 3. Fixed frame; 4. First chute; 5. Mounting bracket; 6. Second chute; 7. Distributor; 8. Support platform; 9. First construction platform; 10. Second construction platform; 11. Third construction platform; 12. Ladder; 13. Auxiliary platform; 14. Telescopic truss; 15. Telescopic jack; 16. Support rod; 17. Through-type jack; 18. Transverse rib plate; 19. Extended plate; 20. Bolts; 21. Vertical shaft; 22. Concrete layer.

[0031] This specification includes references to "one embodiment" or "an embodiment." The appearance of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. The particular features, structures or characteristics may be combined in any suitable manner consistent with the present disclosure.

[0032] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

[0033] "First," "second," etc. As used herein, these terms act as labels for the nouns that precede them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0035] Embodiment 1:

[0036] Combination Figures 1 to 4As shown, this embodiment includes a slipform device for a shaft. In this embodiment, the slipform device is mainly used for a shaft 21 in a funnel shape, that is, the cross section of the shaft 21 is trapezoidal. This device includes a support platform 8, a material distribution mechanism, a platform telescopic mechanism and a platform lifting mechanism. A material distribution mechanism is provided on the top of the support platform 8. A plurality of platform telescopic mechanisms are provided on the support platform 8. The platform telescopic mechanisms are arranged along the radial direction of the support platform 8. The platform telescopic mechanisms are evenly distributed circumferentially around the central axis of the support platform 8. A platform lifting mechanism is provided at the outer edge end of the platform telescopic mechanism close to the inner wall of the shaft 21. The platform lifting mechanism corresponds to the platform telescopic mechanism one by one. The platform lifting mechanism is at least partially buried in the inner wall of the shaft 21. The inner wall of the shaft 21 can provide vertical support for the platform lifting mechanism and the support platform 8. The platform telescopic mechanism can abut against the inner wall of the shaft 21 through telescopic movement and form an auxiliary platform 13. The auxiliary platform 13 cooperates with the support platform 8 to form a working platform for the operation of the shaft 21. The platform lifting mechanism can raise the height of the working platform under the support of the inner wall of the shaft 21.

[0037] In some embodiments, the platform telescopic mechanism includes a telescopic truss 14, a first driving member and a telescopic connection assembly. A first slide groove is provided radially in the support platform 8, and the telescopic truss 14 is slidably connected in the first slide groove. The telescopic truss 14 is a truss structure with good structural strength. A first driving member connected to the telescopic truss 14 is installed in the support platform 8. The first driving member is used to drive the telescopic truss 14 to telescope along the first slide groove. The ends of adjacent telescopic trusses 14 close to the inner wall of the shaft 21 are connected through the telescopic connection assembly. The telescopic connection assembly can adapt to the size change of the inner wall of the shaft 21 through telescoping. Specifically, in this embodiment, the first driving member adopts a telescopic jack 15, and the telescopic jack 15 is used to drive the telescopic truss 14 to telescope on the support platform 8, so that the telescopic truss 14 extends out of the support platform 8 to form an auxiliary platform 13. The auxiliary platform 13 cooperates with the support platform 8 to form a working platform that is convenient for the operation of the shaft 21. The working platform can adapt to the size of each position of the funnel-shaped shaft 21, thereby facilitating the lining construction of the funnel-shaped shaft 21.

[0038] Further, the telescopic connection assembly includes a transverse rib plate 18 and an outward extension plate 19. The transverse rib plate 18 is installed at the end of the telescopic truss 14. The outward extension plate 19 is arranged between adjacent transverse rib plates 18. The outward extension plate 19 is provided with a second slide groove on one side facing the inner wall of the shaft 21. Both adjacent transverse rib plates 18 are slidably connected in the second slide groove of the outward extension plate 19. The transverse rib plate 18 and the outward extension plate 19 are fixed by a fixing member. Specifically, in this embodiment, the fixing member is a bolt 20, which is inserted into the second slide groove by the bolt 20, and the outward extension plate 19 is fixedly connected to the transverse rib plate 18 by the bolt 20.

[0039] The two adjacent telescopic trusses 14 are connected together by a telescopic connection assembly, thereby enhancing the structural strength of the auxiliary platform 13 formed by the combination of the telescopic trusses 14. The lateral pressure of the concrete on the formwork when the inner wall of the shaft 21 is poured is borne by the cooperation between the telescopic trusses 14, the telescopic jack 15 and the telescopic connection assembly in the platform telescopic mechanism. When the height of the slipform device changes in the shaft 21, the inner diameter of the shaft 21 also changes accordingly. The telescopic trusses 14 are telescoped on the supporting platform 8, and relative sliding can occur between the transverse ribs 18 and the outward extension plates 19 to adapt to the size changes of the inner wall of the shaft 21. When the telescopic trusses 14 are telescoped to the corresponding position, the positions of the telescopic trusses 14 and the telescopic connection assembly are locked by tightening the bolts 20 between the outward extension plates 19 and the transverse ribs 18.

[0040] In some embodiments, the platform lifting mechanism includes a support rod 16 and a second driving member, the ends of the telescopic truss 14 are correspondingly installed with the second driving member, the support rod 16 and the second driving member are connected one by one, the support rod 16 is arranged along the length of the shaft 21, the bottom of the support rod 16 is at least partially buried in the concrete layer 22 of the inner wall of the shaft 21, and the second driving member is used to raise the height of the working platform along the support rod 16. Specifically, in this embodiment, the second driving member adopts a through-type jack 17, the through-type jack 17 is fixedly installed at the end of the telescopic truss 14, the support rod 16 can pass through the through-type jack 17, and the support rod 16 is buried in the concrete layer 22 of the inner wall of the shaft 21 in subsequent operations.

[0041] The platform lifting mechanism is not only the lifting structure of the whole device, but also the load-bearing device of the whole device. Since the support rod 16 is partially buried in the concrete layer 22, the main vertical load is transmitted to the concrete through the support rod 16. The operation of the through-type jack 17 can drive the working platform to rise and fall in the shaft 21. By using the cooperation of the through-type jack 17 and the telescopic jack 15, the working platform can rise and fall in the funnel-shaped shaft 21 while keeping coordination with various places in the shaft 21. After completing the lining operation of a certain section of the inner wall of the shaft 21 and moving the working platform upward, the support rod 16 below is buried in the concrete layer 22, so that there is a good connection strength between the support rod 16 and the working platform.

[0042] In some embodiments, the material distribution mechanism includes a receiving hopper 1, a chute 2, and a fixed frame 3. The chute 2 is installed on the inner wall of the shaft 21 near the inlet end through the fixed frame 3. The inlet end of the chute 2 is provided with a receiving hopper 1, and the outlet end of the chute 2 faces the inner wall of the shaft 21.

[0043] The fixing frame 3 is used to fix the chute 2 on the inner wall of the shaft 21 to prevent the chute 2 from moving on the inner wall of the shaft 21. The construction workers guide the concrete slurry into the receiving hopper 1 on the ground, and the concrete slurry flows into the shaft 21 through the receiving hopper 1 and the chute 2.

[0044] Furthermore, the material distribution mechanism also includes a first chute 4, a distributor 7, a mounting bracket 5 and a plurality of second chutes 6. A mounting bracket 5 is provided on the top of the support platform 8, and a distributor 7 is installed on the top of the mounting bracket 5. The first end of the first chute 4 is arranged below the outlet end of the chute 2, and the second end of the first chute 4 is arranged at the inlet end of the distributor 7. The first ends of the plurality of second chutes 6 are arranged at the outlet end of the distributor 7, and the second ends of the plurality of second chutes 6 are arranged on the inner walls around the shaft 21. The second chutes 6 can be used to transport materials to the inner wall of the shaft 21.

[0045] When concrete slurry is provided into the vertical shaft 21 , the concrete slurry flows from the outlet end of the chute 2 through the first chute 4 into the distributor 7 , and then is evenly filled onto the inner wall around the vertical shaft 21 through the distributor 7 and the second chute 6 .

[0046] In some embodiments, a first construction platform 9 is provided on the auxiliary platform 13, a second construction platform 10 is provided above the auxiliary platform 13, and a third construction platform 11 is provided below the auxiliary platform 13. The first construction platform 9, the second construction platform 10 and the third construction platform 11 are all connected via a ladder 12, and the ladder 12 can facilitate the movement of construction workers between the platforms. The first construction platform 9 is used by construction workers to perform lining operations on concrete slurry, the second construction platform 10 is used by construction workers to extend support rods 16 and steel bars, and the third construction platform 11 is used by construction workers to perform lining and finishing operations.

[0047] Embodiment 2:

[0048] This embodiment is a construction method for pouring concrete on the inner wall of a funnel-shaped shaft, using the slipform device of the shaft as described in the first embodiment, and includes the following steps:

[0049] A plurality of support rods 16 are fixedly installed at the bottom of the shaft 21 along the circumferential direction of the shaft 21;

[0050] Arrange the slipform device in the shaft 21, and pass the support rod 16 through the through-type jack 17 around the auxiliary platform 13;

[0051] The construction workers on the ground fill the concrete slurry into the receiving hopper 1, and the concrete slurry is evenly filled on the inner wall around the shaft 21 through the chute 2, the first chute 4, the distributor 7 and the second chute 6;

[0052] The construction workers on the first construction platform 9 perform lining work on the concrete slurry, the construction workers on the second construction platform 10 perform extension work on the support rods 16 and the steel bars, and the construction workers on the third construction platform 11 perform lining finishing work;

[0053] After the lining operation of the inner wall of the section of the shaft 21 is completed, the through-type jack 17 and the telescopic jack 15 are controlled to operate synchronously, so that the support platform 8 moves upward, and at the same time, the auxiliary platform 13 extends outward from the support platform 8 and cooperates with the inner wall of the shaft 21;

[0054] After reaching the appropriate position, tighten the bolts 20 on the extension plate 19;

[0055] After the inner wall lining operation of the shaft 21 is completed, the bolts 20 on the extension plate 19 are loosened, and the through-type jack 17 and the telescopic jack 15 are controlled to operate synchronously to drive the support platform 8 to continue to move upward;

[0056] Repeat the above steps until the inner wall lining construction of the shaft 21 is completed.

[0057] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A slipform device for a shaft, characterized in that: include: A supporting platform (8) with a material distribution mechanism disposed on the top; a platform telescopic mechanism, which is arranged on the support platform (8), is arranged along the radial direction of the support platform (8), is evenly distributed circumferentially around the central axis of the support platform (8), and can abut against the inner wall of the shaft (21) through telescopic movement to form an auxiliary platform (13), and the auxiliary platform (13) cooperates with the support platform (8) to form a working platform for operating the shaft (21); A platform lifting mechanism is arranged at the outer edge end of the platform telescopic mechanism, the platform lifting mechanism corresponds to the platform telescopic mechanism one by one, the platform lifting mechanism is at least partially buried in the inner wall of the shaft (21), and the platform lifting mechanism can raise the height of the working platform under the support of the inner wall of the shaft (21).

2. A slipform device for a shaft according to claim 1, characterized in that: The platform telescopic mechanism comprises a telescopic truss (14), a first driving member and a telescopic connection assembly. A first sliding groove is radially provided in the support platform (8), the telescopic truss (14) is slidably connected in the first sliding groove, the first driving member connected to the telescopic truss (14) is installed in the support platform (8), the first driving member is used to drive the telescopic truss (14) to telescope along the first sliding groove, the ends of adjacent telescopic trusses (14) are connected via the telescopic connection assembly, and the telescopic connection assembly can adapt to the size change of the inner wall of the shaft (21) by telescoping.

3. A slipform device for a shaft according to claim 2, characterized in that: The telescopic connection assembly includes a transverse rib plate (18) and an outward extension plate (19). The transverse rib plate (18) is installed at the end of the telescopic truss (14). The outward extension plate (19) is provided between adjacent transverse rib plates (18). A second slide groove is formed on the side of the outward extension plate (19) facing the inner wall of the shaft (21). Two adjacent transverse rib plates (18) are slidably connected in the second slide groove. The transverse rib plate (18) and the outward extension plate (19) are fixed via a fixing member.

4. A slipform device for a shaft according to claim 3, characterized in that: The fixing member is a bolt (20), and the bolt (20) is inserted into the second slide groove to fix the extension plate (19) and the transverse rib plate (18) together.

5. A slipform device for a shaft according to claim 2, characterized in that: The first driving member is a telescopic jack (15).

6. A slipform device for a shaft according to claim 1, characterized in that: The platform lifting mechanism comprises a support rod (16) and a second driving member, the ends of the telescopic truss (14) are respectively installed with the second driving member, the support rod (16) and the second driving member are connected one by one, the support rod (16) is arranged along the entire length of the shaft (21), the bottom of the support rod (16) is at least partially buried in the concrete layer (22) of the inner wall of the shaft (21), and the second driving member is used to raise the height of the working platform along the support rod (16).

7. A slipform device for a shaft according to claim 6, characterized in that: The second driving member adopts a through-type jack (17), and the support rod (16) is connected to the inside of the through-type jack (17).

8. A slipform device for a shaft according to claim 1, characterized in that: The material distribution mechanism comprises: a receiving hopper (1), a chute (2), and a fixing frame (3); the chute (2) is installed on the inner wall of the vertical shaft (21) near the inlet end via the fixing frame (3); the receiving hopper (1) is provided at the inlet end of the chute (2); and the outlet end of the chute (2) faces the inner wall of the vertical shaft (21).

9. A slipform device for a shaft according to claim 8, characterized in that: The material distribution mechanism also includes a first chute (4), a distributor (7), a mounting bracket (5) and a plurality of second chutes (6); the distributor (7) is mounted on the top of the support platform (8) via the mounting bracket (5); the first end of the first chute (4) is arranged below the outlet end of the chute (2); the second end of the first chute (4) is arranged at the inlet end of the distributor (7); the first ends of the plurality of second chutes (6) are arranged at the outlet end of the distributor (7); and the second ends of the plurality of second chutes (6) are arranged on the inner walls around the shaft (21).

10. A slipform device for a vertical shaft according to claim 1, characterized in that: A first construction platform (9) is provided on the auxiliary platform (13), a second construction platform (10) is provided above the auxiliary platform (13), and a third construction platform (11) is provided below the auxiliary platform (13); the first construction platform (9), the second construction platform (10) and the third construction platform (11) are all connected via a ladder (12); The first construction platform (9) is used by construction workers to carry out lining operations on concrete slurry, the second construction platform (10) is used by construction workers to carry out extension operations on steel bars, and the third construction platform (11) is used by construction workers to carry out lining and finishing operations.

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