Automatic retracting and separating type shaft template for narrow shaft

Abstract

The utility model provides an automatic retracting and separating type shaft template for a narrow shaft, which comprises an inner support frame and four templates, a plurality of U-shaped support beams are arranged on the templates, a plurality of chutes are arranged on the U-shaped support beams, a plurality of channel steels are arranged on the periphery of the inner support frame, template retracting bolts are arranged on the channel steels, the template retracting bolts abut against the chutes, and a plurality of high foot bottom pins are arranged at the bottoms of the templates. A worker can complete the installation operation of the whole shaft formwork without entering a well, the formwork is automatically attached to the well wall when encountering a high foot bottom pin, the steel channel is lifted for automatic demolding after completion, the safety threat of limited space operation is eliminated, and safety accidents caused by the fact that a well mouth is narrow, ventilation in the well is insufficient and harmful gas exists are avoided for the worker. The overall structure simplifies the process, shortens the construction period and can be automatically attached to the well wall and demoulded, time loss caused by manual intervention is omitted due to attachment to the well wall and demoulding, and the construction time is greatly shortened.

Description

Technical Field

[0001] This utility model relates to the field of shaft construction, and in particular to an automatic tapering shaft template for narrow shafts. Background Technology

[0002] Shaft construction often involves pouring concrete into narrow shafts. In some existing narrow shaft construction scenarios, the limited opening size presents a dual operational challenge. During the pouring phase, insufficient space prevents workers from entering the shaft to install the formwork, hindering formwork erection and necessitating unconventional techniques such as remote robotic arms. This complicates procedures, prolongs construction timelines, and reduces efficiency. During demolding, even after concrete pouring, the narrow opening prevents workers from accessing the shaft to remove the formwork, requiring mechanical forced demolding. This can lead to irremovable formwork or damage to the shaft structure, necessitating rework and further increasing costs and time constraints. To address these issues, we propose an automated tapering shaft formwork system for narrow shafts. Utility Model Content

[0003] This utility model provides an automatic retractable shaft template for narrow vertical shafts, which solves the problems of insufficient space at the shaft opening, making it impossible to enter the shaft to complete the installation and dismantling of the shaft template, making it difficult to complete the formwork support and demolding, resulting in complicated procedures, extended construction period, low efficiency, and damage to the shaft structure during demolding.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic retractable shaft template for narrow vertical shafts, including an inner support frame and four templates. Multiple U-shaped support beams are provided on the templates, and multiple inclined grooves are provided on the U-shaped support beams. Multiple channel steels are provided around the inner support frame, and retractable bolts are provided on the channel steels. The retractable bolts abut against the inclined grooves, and multiple high foot pins are provided at the bottom of the templates.

[0005] In the preferred embodiment, four templates form a rectangle, corner connectors are provided between two templates, the corner connectors are provided with grooves, and the top of the templates is provided with protruding rods that abut against the grooves.

[0006] In the preferred embodiment, the channel steel is a U-shaped channel steel with both sides abutting against the U-shaped support beam, and the top of the channel steel is provided with lifting lugs.

[0007] In the preferred embodiment, the high-foot pin includes a pre-embedded rod, a baffle is provided at the bottom of one end of the pre-embedded rod, a horizontal plate is provided on one end of the pre-embedded rod, and a second lifting lug is provided on the horizontal plate.

[0008] In the preferred embodiment, the pre-embedded rod is embedded in the well wall of the casting well, and one end of the baffle abuts against the well wall of the casting well.

[0009] In the preferred solution, the template bottom is provided with an inclined end face, and the second lifting lug is abutted against the inclined end face of the template bottom.

[0010] In the preferred solution, the template is provided with a positioning through hole, the template positioning through hole is provided with a positioning bolt, and one end of the positioning bolt is embedded in the pouring well wall.

[0011] In the preferred solution, the high foot bottom pin is provided with a hook rod, the hook rod is provided with a hook at one end, and the hook is connected with the second lifting lug.

[0012] The beneficial effects of the utility model are as follows: the channel steel is lifted to make the overall structure rise, so that the multiple templates are separated from the high foot bottom pin, the channel steel is continuously lifted, the mold closing bolt is abutted against and slides on the inclined groove, so that the U-shaped support beam moves horizontally relative to the channel steel, the template moves horizontally relative to the channel steel, the template is separated from the well wall, and the overall structure is automatically folded. Finally, the hook rod hooks the high foot bottom pin of the bottom pouring well wall. When the overall structure is demoulded, mechanical forced demoulding is avoided, the template cannot be removed or the well structure is damaged, rework is required, and the phenomenon of further increasing cost and construction period pressure occurs.

[0013] The overall structure can complete the installation operation of the entire well template without entering the well, automatically abuts against the well wall when the template meets the high foot bottom pin, automatically demoulds after completion, the staff does not need to enter the well, the safety threat of limited space operation is eliminated, the staff is relieved from the safety accidents caused by narrow well mouth, insufficient ventilation in the well and harmful gases. The overall structure simplifies the process, shortens the construction period, and the template installation and removal do not need to depend on unconventional technology such as remote mechanical arm operation, so that the process is complicated, the construction period is prolonged, and the phenomenon of low efficiency occurs. The overall structure can automatically abut against the well wall and automatically demould, the abutting against the well wall and the demoulding save the time loss of manual intervention, greatly shorten the construction time, and have great popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in connection with the drawings and embodiments;

[0015] Figure 1 is the top view of the overall structure of the utility model;

[0016] Figure 2 is the top view of the local structure of the utility model;

[0017] Figure 3 is the structure schematic diagram of the utility model Figure 2 when pouring;

[0018] Figure 4 is the structure schematic diagram of the utility model

[0019] Figure 5It is the structural schematic diagram of the positioning bolt of the whole structure;

[0020] Figure 6 It is the structural schematic diagram of the whole structure of the utility model Figure 5 The enlarged view of B in figure;

[0021] Figure 7 It is the structural schematic diagram of the whole structure when being hoisted out;

[0022] Figure 8 It is the structural schematic diagram of the high foot bottom pin of the whole structure;

[0023] Figure 9 It is the shaft side view of the high foot bottom pin of the utility model;

[0024] In the drawing: template 1; convex rod 101; inclined end face 102; U-shaped support beam 2; inclined groove 201; inner support frame 3; channel steel 4; lifting lug 401; mold closing bolt 5; high foot bottom pin 6; pre-buried rod 601; baffle 602; cross plate 603; second lifting lug 604; angle connecting piece 7; sliding groove 701; hook rod 8; hook 801; positioning bolt 9; pouring shaft wall 10. DETAILED DESCRIPTION

[0025] Example 1:

[0026] As Figures 1-9 In the drawing, the automatic closing type shaft template for narrow vertical shafts comprises an inner support frame 3 and four templates 1, the template 1 is provided with a plurality of U-shaped support beams 2, the U-shaped support beam 2 is provided with a plurality of inclined grooves 201, the inner support frame 3 is provided with a plurality of channel steels 4 around, the channel steel 4 is provided with a mold closing bolt 5, the mold closing bolt 5 abuts against the inclined groove 201, and the template 1 is provided with a plurality of high foot bottom pins 6 at the bottom. According to the structure, when the whole structure is poured, the plurality of high foot bottom pins 6 are pre-buried on the bottom pouring shaft wall 10, the staff hoists the channel steel 4 to make the plurality of templates 1 drop, when the template 1 drops and contacts the high foot bottom pin 6, the inclined end face 102 contacts the second lifting lug 604, so that the template 1 moves horizontally relative to the channel steel 4, so that the template 1 abuts against the inner wall of the bottom pouring shaft wall 10, and at the same time, the inclined end face 102 abuts against the high foot bottom pin 6, the whole template 1 is automatically installed, the positioning bolt 9 is installed, the upper shaft wall of the pouring shaft wall 10 is poured, after the concrete solidifies, the plurality of positioning bolts 9 are disassembled, so that the whole structure can be separated from the shaft wall, and the four templates 1 abut against the plurality of high foot bottom pins 6.

[0027] The whole structure is lifted by lifting the channel steel 4, so that the multiple templates 1 are separated from the high foot bottom pin 6, the lifting of the channel steel 4 is continued, the mold closing bolt 5 is abutted on the chute 201 and slides, so that the U-shaped support beam 2 moves horizontally relative to the channel steel 4, so that the template 1 moves horizontally relative to the channel steel 4, so that the template 1 is separated from the shaft wall, and the whole structure is automatically retracted. Finally, the high foot bottom pin 6 of the bottom pouring shaft wall 10 is hooked out by the hook rod 8. When the whole structure is demolded, mechanical forced demolding is avoided, which causes the template to be unable to be removed or the shaft structure to be damaged, and the phenomenon of rework processing, further increasing the cost and the time pressure occurs.

[0028] The whole structure does not have to enter the well to complete the installation of the whole well shaft template 1. When the template 1 encounters the high foot bottom pin 6, it is automatically attached to the shaft wall, and after completion, the channel steel 4 is automatically demolded. Workers do not have to enter the well, eliminating the safety threat of limited space operation, and eliminating the occurrence of safety accidents caused by narrow wellhead, insufficient ventilation in the well, and existence of harmful gases. The whole structure simplifies the process, shortens the construction period, and the template 1 installation and disassembly does not have to rely on unconventional technology, such as remote mechanical arm operation, which causes the process to be complicated, prolongs the construction period, and the phenomenon of low efficiency occurs. The whole structure can automatically attach to the shaft wall and automatically demold, which saves the time loss of manual intervention, greatly shortens the construction time.

[0029] In the preferred scheme, the four templates 1 form a rectangle, and the corner connecting piece 7 is arranged between the two templates 1. The corner connecting piece 7 is provided with a sliding groove 701, and the top of the template 1 is provided with a protruding rod 101 abutting on the sliding groove 701. Thus, when the four templates 1 are contracted, the protruding rod 101 of the template 1 abuts on the sliding groove 701 and slides, and the two ends of the template 1 are provided with a missing corner to avoid the collision phenomenon when the two templates 1 slide relative to each other.

[0030] In the preferred scheme, the channel steel 4 is a channel steel with a U-shaped cross section, the two sides of the channel steel 4 abut on the U-shaped support beam 2, and the top of the channel steel 4 is provided with a lifting lug 401. Thus, the lifting lug 401 is used for lifting, and the U-shaped support beam 2 slides in the channel steel 4.

[0031] In the preferred scheme, the high foot bottom pin 6 includes a pre-buried rod 601, the bottom of one end of the pre-buried rod 601 is provided with a baffle 602, one end of the pre-buried rod 601 is provided with a horizontal plate 603, and the horizontal plate 603 is provided with a second lifting lug 604. Thus, the pre-buried rod 601 is pre-buried on the bottom pouring shaft wall 10, the horizontal plate 603 abuts on the shaft wall of the pouring shaft wall 10, and the second lifting lug 604 abuts on the inclined end surface 102 of the template 1.

[0032] When the whole template 1 is lowered, the inclined end surface 102 of the template 1 abuts on the second lifting lug 604 and slides, so that the multiple templates 1 are opened.

[0033] When the whole template 1 is poured, the inclined end surface 102 is abutted against the second lifting lug 604, and the plurality of high foot bottom pins 6 support the whole structure, and the plurality of high foot bottom pins 6 play the whole supporting role.

[0034] When the whole template 1 is fully extended, the hook rod 8 takes out the high foot bottom pin 6 through the second lifting lug 604.

[0035] In the preferred scheme, the embedded rod 601 is embedded on the pouring well wall 10, and one end of the baffle 602 is abutted against the pouring well wall 10.

[0036] In the preferred scheme, the template 1 is provided with an inclined end surface 102 at the bottom, and the second lifting lug 604 is abutted against the inclined end surface 102 at the bottom of the template 1. Therefore, when the whole template 1 is lowered, the inclined end surface 102 of the template 1 is abutted against the second lifting lug 604 to slide, so that the plurality of templates 1 are opened.

[0037] In the preferred scheme, the template 1 is provided with a positioning through hole, the template 1 is provided with a positioning bolt 9 on the positioning through hole, and one end of the positioning bolt 9 is embedded on the pouring well wall 10. Therefore, when the whole template 1 is poured, the positioning bolt 9 connects the pouring well wall 10 to be solidified with the template 1.

[0038] In the preferred scheme, the high foot bottom pin 6 is provided with a hook rod 8 on one side, the hook rod 8 is provided with a hook 801 at one end, and the hook 801 is connected with the second lifting lug 604. Therefore, when the whole template 1 is fully extended, the hook rod 8 takes out the high foot bottom pin 6 through the second lifting lug 604.

[0039] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be the technical solutions recorded in the claims, including the equivalent replacement schemes of the technical features recorded in the claims. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. An automated telescoping shaft form for narrow shafts characterized by: The utility model relates to a formwork system, which comprises an inner support frame (3) and four formworks (1), the formwork (1) is provided with a plurality of U-shaped support beams (2), the U-shaped support beam (2) is provided with a plurality of inclined grooves (201), the inner support frame (3) is provided with a plurality of channel steels (4) around, the channel steel (4) is provided with a mold closing bolt (5), the mold closing bolt (5) abuts on the inclined groove (201), the formwork (1) bottom is provided with a plurality of high foot base pins (6).

2. The self-retracting shaft template for narrow shafts of claim 1, wherein: The four formworks (1) form a rectangle, the two formworks (1) are provided with corner connecting pieces (7), the corner connecting piece (7) is provided with a sliding groove (701), the formwork (1) top is provided with a convex rod (101), the convex rod (101) abuts on the sliding groove (701).

3. The self-retracting shaft template for narrow shafts of claim 1, wherein: The channel steel (4) is a channel steel with a U-shaped cross section, the channel steel (4) abuts on the U-shaped support beam (2) on both sides, and the channel steel (4) top is provided with a lifting lug (401).

4. The self-retracting shaft template for narrow shafts of claim 1, wherein: The high foot base pin (6) comprises a pre-buried rod (601), the bottom of one end of the pre-buried rod (601) is provided with a baffle (602), the one end of the pre-buried rod (601) is provided with a horizontal plate (603), and the horizontal plate (603) is provided with a second lifting lug (604).

5. The self-retracting shaft template for narrow shafts of claim 4, wherein: The pre-buried rod (601) is pre-buried on a pouring well wall (10), and the baffle (602) one end abuts on the pouring well wall (10).

6. The self-retracting shaft template for narrow shafts of claim 4, wherein: The formwork (1) bottom is provided with an inclined end face (102), and the second lifting lug (604) abuts on the inclined end face (102) of the formwork (1) bottom.

7. The self-retracting shaft template for narrow shafts of claim 1, wherein: The formwork (1) is provided with a positioning through hole, and the positioning through hole of the formwork (1) is provided with a positioning bolt (9), and one end of the positioning bolt (9) is pre-buried on the pouring well wall (10).

8. The self-retracting shaft template for narrow shafts of claim 1, wherein: One side of the high foot base pin (6) is provided with a hook rod (8), one end of the hook rod (8) is provided with a hook (801), and the hook (801) is connected with the second lifting lug (604).

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