Die for manufacturing column top preformed hole

Abstract

The utility model discloses a die for manufacturing a column top preformed hole, and relates to the technical field of column top preformed holes. The positioning device comprises an annular upper positioning plate and an annular lower positioning plate, a plurality of corresponding round holes are formed in the upper positioning plate and the lower positioning plate; a positioning device is arranged at the corresponding round hole; the positioning device comprises a leather hose with an opening in the upper end; two telescopic pipes are arranged on the leather hose; a plurality of limiting strips are fixedly connected to the close sides of the two telescopic pipes, and the limiting strips at the upper end are in sliding connection with the limiting strips at the lower end; the telescopic strips on the two telescopic pipes form a circular pipe; the lower telescopic pipe is connected with the upper end of the leather hose; a threaded pipe is fixedly connected between the limiting strips at the lower end. The device has the beneficial effects that when the device is used, the positioning of manufactured preformed holes is more accurate, the device is convenient to adjust to adapt to the depths of different preformed holes, and the device is convenient and labor-saving to use.

Description

Technical Field

[0001] The utility model relates to the technical field of column top reserved holes, in particular to a mold for making column top reserved holes. Background Art

[0002] Sometimes it is necessary to make reserved holes in the tank pile foundation project. The traditional way of retaining reserved holes is to pour the round steel pipe into the concrete, and then pull out the round steel pipe after the concrete has initially set. There are many shortcomings in the traditional way of making reserved holes. For example, if the round steel pipe is pulled out too early, it will shrink and cause the reserved hole to be insufficient in depth and diameter. If it is pulled out too late, it will be impossible to pull it out manually. If it is pulled out mechanically, it will cause damage to the concrete. Many people bury the corrugated pipe in the concrete and never take it out. In this production, a leather pipe is generally used as the supporting positioning pipe of the corrugated pipe. When placing and pouring concrete, the corrugated pipe is prone to deformation, resulting in the positioning offset of the reserved hole. In addition, multiple sets of leather pipes of different lengths need to be prepared to adapt to reserved holes of different lengths, which is inconvenient to use. Moreover, when the poured outer concrete solidifies, it is inconvenient to take out the positioning pipe at the beginning, and it is more laborious to take it out. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a mold for making a column top reserved hole in view of the above-mentioned technical deficiencies. When used, the made reserved hole is more accurately positioned, conveniently adjusted to adapt to different reserved hole depths, and convenient to use and more labor-saving.

[0004] The technical scheme adopted by the utility model is as follows: a mold for making a reserved hole at the top of a column is provided, comprising an upper positioning plate and a lower positioning plate in an annular shape; the upper positioning plate and the lower positioning plate are provided with a plurality of corresponding circular holes; a positioning device is arranged at the corresponding circular holes; the positioning device comprises a leather tube with an upper opening; two telescopic tubes are arranged on the leather tube; the adjacent sides of the two telescopic tubes are fixedly connected with a plurality of limit strips, and the limit strips at the upper end and the limit strips at the lower end are slidably connected; the telescopic strips on the two telescopic tubes form a circular tube shape; the telescopic tube at the lower end is connected with the upper end of the leather tube; a threaded tube is fixedly connected between the limit strips at the lower end; a threaded rod that cooperates with the threaded tube is rotatably connected inside the telescopic tube at the upper end; a limit block is fixedly connected to the outer side of the telescopic tube at the upper end; a stopper corresponding to the limit block is fixedly connected at the circular hole on the upper positioning plate; the diameter of the circular hole on the lower positioning plate is larger than the diameter of the circular hole on the upper positioning plate; a corrugated tube is matched and placed in the circular hole of the lower positioning plate; at the circular hole, a clamp for fixing the corrugated tube is arranged at the upper end of the lower positioning plate; and a plurality of positioning devices have the same structure.

[0005] To further optimize the technical solution, a clamp for a mold for making a reserved hole at the top of a column includes two arc tubes; a slider is fixedly connected to one end of the arc tube; the sliders are slidably connected to the lower positioning plate; an adjustment column is provided at the two sliders; a positive thread and a reverse thread are respectively provided at both ends of the outer side of the adjustment column; the positive thread and the reverse thread are respectively connected to the corresponding slider threads.

[0006] To further optimize the technical solution, the inner sides of two arc tubes of a mold for making a reserved hole at the top of a column are fitted with the outer side of a corrugated tube; when the two arc tubes are fitted with the corrugated tube, a gap exists between the two arc tubes.

[0007] To further optimize the technical solution, an upper positioning plate of a mold for making a reserved hole at the top of a column is fixedly connected to an auxiliary steel bar; a connecting ring is fixed to the middle of the auxiliary steel bar.

[0008] To further optimize the technical solution, a limit strip at the lower end of a mold for making a reserved hole at the top of a column is fixedly connected to a threaded tube through a connecting frame.

[0009] To further optimize the technical solution, the circular holes of a mold for making reserved holes at the top of a column are evenly distributed on an upper positioning plate and a lower positioning plate; the upper positioning plate and the lower positioning plate are fixedly connected by a bracket.

[0010] To further optimize the technical solution, a telescopic tube at the lower end of a mold for making a reserved hole at the top of a column is detachably connected to the upper end of a leather tube.

[0011] To further optimize the technical solution, a control handle is fixedly connected to the upper end of the threaded rod of a mold for making a reserved hole at the top of a column.

[0012] To further optimize the technical solution, four connecting plates are arranged on the outer side of the lower positioning plate of a mold for making reserved holes at the top of the column; and connecting holes are opened on the connecting plates.

[0013] Compared with the traditional mold for pre-reserved holes on the top of the column, the utility model has the following beneficial effects:

[0014] 1. The connection plate, connection hole, corrugated pipe, upper positioning plate, clamp, telescopic pipe, leather pipe and limit strip are coordinated to support and position the inner and outer sides of the corrugated pipe. The rigid support positioning is more accurate. There is no opening at the lower end of the leather pipe to prevent concrete from flowing in from the lower end of the corrugated pipe.

[0015] 2. The combination of threaded rods, limit strips, threaded tubes, telescopic tubes and leather tubes can easily adapt to the reserved holes of different lengths, and can be adjusted according to the length of the reserved holes to adapt to the use. The larger driving force through the threaded connection also makes it easier to take out the device, making it more convenient to use;

[0016] 3. The coordination of the adjusting column, forward thread, reverse thread, slider, arc tube, bellows and limit strip, and the contact area between the arc tube and the bellows are large, which makes it easier to fix the bellows in place and more convenient to use;

[0017] 4. The setting of auxiliary steel bars and connecting rings makes it easy to remove the entire mold and telescopic tube, which makes the operation more convenient and saves manpower; and the cooperation of the limit block and the stop block plays a limiting role, making it convenient to rotate the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a partial decomposition structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the telescopic tube of the utility model;

[0021] Figure 4 It is a partial structural schematic diagram of the utility model;

[0022] In the figure, 1. upper positioning plate; 2. lower positioning plate; 3. round hole; 4. leather tube; 5. telescopic tube; 6. limit strip; 7. threaded tube; 8. threaded rod; 9. limit block; 10. stop block; 11. bellows; 12. clamp; 13. arc tube; 14. slider; 15. adjustment column; 16. forward thread; 17. reverse thread; 18. auxiliary steel bar; 19. connecting ring; 20. control handle; 21. connecting plate; 22. connecting hole. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-4As shown, a mold for making a reserved hole at the top of a column comprises an upper positioning plate 1 and a lower positioning plate 2 in an annular shape; a plurality of corresponding circular holes 3 are opened on the upper positioning plate 1 and the lower positioning plate 2; a positioning device is arranged at the corresponding circular holes 3; the positioning device comprises a leather tube 4 with an upper opening; two telescopic tubes 5 are arranged on the leather tube 4; a plurality of limiting strips 6 are fixedly connected to the adjacent sides of the two telescopic tubes 5, and the limiting strip 6 at the upper end is slidably connected to the limiting strip 6 at the lower end; the telescopic strips on the two telescopic tubes 5 form a circular tube shape; the telescopic tube 5 at the lower end is connected to the upper end of the leather tube 4 The ends are connected; a threaded tube 7 is fixedly connected between the limit strips 6 at the lower end; a threaded rod 8 that cooperates with the threaded tube 7 is rotatably connected inside the telescopic tube 5 at the upper end; a limit block 9 is fixedly connected to the outer side of the telescopic tube 5 at the upper end; a stopper 10 corresponding to the limit block 9 is fixedly connected at the circular hole 3 on the upper positioning plate 1; the diameter of the circular hole 3 on the lower positioning plate 2 is larger than the diameter of the circular hole 3 on the upper positioning plate 1; a corrugated tube 11 is placed in the circular hole 3 of the lower positioning plate 2; at the circular hole 3, a clamp 12 for fixing the corrugated tube 11 is provided at the upper end of the lower positioning plate 2; multiple positioning The device has the same structure; the clamp 12 includes two arc tubes 13; one end of the arc tubes 13 is fixedly connected to a slider 14; the sliders 14 are slidably connected to the lower positioning plate 2; an adjustment column 15 is provided at the two sliders 14; the outer ends of the adjustment column 15 are respectively provided with a positive thread 16 and a reverse thread 17; the positive thread 16 and the reverse thread 17 are respectively threadedly connected to the corresponding slider 14; the inner sides of the two arc tubes 13 are fitted with the outer sides of the bellows 11; when the two arc tubes 13 are fitted with the bellows 11, the two arc tubes 13 are There is a gap between them; the upper end of the upper positioning plate 1 is fixedly connected with an auxiliary steel bar 18; a connecting ring 19 is fixed in the middle of the auxiliary steel bar 18; the limit strip 6 at the lower end is fixedly connected to the threaded tube 7 through a connecting frame; the circular holes 3 are evenly distributed on the upper positioning plate 1 and the lower positioning plate 2; the upper positioning plate 1 and the lower positioning plate 2 are fixedly connected by a bracket; the telescopic tube 5 at the lower end is detachably connected to the upper end of the leather tube 4; the upper ends of the threaded rods 8 are fixedly connected with control handles 20; four connecting plates 21 are arranged on the outer side of the lower positioning plate 2; and connecting holes 22 are opened on the connecting plates 21.

[0025] The telescopic strips on the two telescopic tubes 5 form a circular tube shape, and the specific structure is as follows Figure 3 As shown; the telescopic tube 5 at the lower end is detachably connected to the upper end of the tube, and is used to separate the telescopic tube 5 from the leather tube 4 after applying a certain force when the leather tube 4 is firmly connected to the concrete; when the two arc tubes 13 are fitted with the corrugated tube 11, there is a gap between the two arc tubes 13, and the specific structure is as shown Figure 4 As shown;

[0026] When using, place this mold on the column to be made, such as Figure 1As shown, the bellows 11 is limited by the connecting plate 21 and the connecting hole 22, and the bellows 11 is located at the lower end of the upper positioning plate 1, and the upper end of the bellows 11 is located at the clamp 12, and the corresponding telescopic tube 5, leather tube 4 and limiting strip 6 are deeply inserted into the bellows 11, and then the bellows 11 is fixed by the clamp 12, and the inner side of the bellows 11 is supported and positioned by the telescopic tube 5 and the limiting strip 6, and the hard material of the telescopic tube 5 and the limiting strip 6 provides rigid support for the bellows 11, so that the positioning of the bellows 11 is more accurate, and the lower end of the leather tube 4 has no opening, which is used to prevent concrete from flowing into the lower end of the bellows 11, and is used to block a large amount of concrete from entering the bellows 11;

[0027] By rotating the threaded rod 8, the limiting strip 6 at the upper end and the limiting strip 6 at the lower end are slid and limited. When the threaded rod 8 is rotated, the threaded tube 7 connected to the outer thread thereof moves up and down, and the threaded tube 7 drives the limiting strip 6 fixedly connected thereto and the telescopic tube 5 at the lower end to move up and down, and the telescopic tube 5 at the lower end drives the leather tube 4 to move up and down, thereby adjusting the overall length, which is convenient for adapting to reserved holes of different lengths and convenient for adjusting and adapting to use according to the length of the reserved holes; and when the poured outer concrete solidifies, it is inconvenient to take out the positioning tube at the beginning, and it will save effort after a part of the positioning tube is taken out. It is inconvenient to take out the positioning tube part in the traditional way. At this time, the threaded rod 8 is rotated, and the threaded rod 8 drives the threaded tube 7 to move upward, and the threaded tube 7 drives the telescopic tube 5 and the leather tube 4 at the lower end to move upward. The larger driving force of the threaded connection makes it more convenient to take out the device, and it is more convenient to use.

[0028] After the lower end of the telescopic tube 5 is taken out through the threaded rod 8, the entire mold and the telescopic tube 5 can be removed by directly hooking the connecting ring 19 on the auxiliary steel bar 18 through an external crane or other equipment, and the corrugated tube 11 is reserved in the hole, which is more convenient to operate and saves manpower;

[0029] By rotating the adjusting column 15, through the setting of the positive thread 16 and the reverse thread 17, and then through the sliding limit of the slider 14, the two sliders 14 drive the two arc tubes 13 to move, so that the bellows 11 is fixedly attached to the outer sides of the plurality of limit strips 6. The contact area between the arc tube 13 and the bellows 11 is large, which facilitates and stabilizes the bellows 11 and makes it more convenient to use.

[0030] The cooperation between the limit block 9 and the stop block 10 plays a role of limiting, which facilitates the rotation of the threaded rod 8; there is a gap between the two arc tubes 13. If there is no gap between the two arc tubes 13, the limiting of the arc tube 13 will be easily affected when concrete is adhered.

[0031] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A mold for making a reserved hole at the top of a column, characterized in that: It comprises an upper positioning plate (1) and a lower positioning plate (2) in the shape of a ring; a plurality of corresponding circular holes (3) are opened on the upper positioning plate (1) and the lower positioning plate (2); and positioning devices are arranged at the corresponding circular holes (3); The positioning device comprises a leather tube (4) with an opening at the upper end; two telescopic tubes (5) are arranged on the leather tube (4); a plurality of limit strips (6) are fixedly connected to the adjacent sides of the two telescopic tubes (5), and the limit strips (6) at the upper end and the limit strips (6) at the lower end are slidably connected; the telescopic strips on the two telescopic tubes (5) form a circular tube; the telescopic tube (5) at the lower end is connected to the upper end of the leather tube (4); a threaded tube (7) is fixedly connected between the limit strips (6) at the lower end; a threaded tube (7) cooperating with the threaded tube (7) is rotatably connected inside the telescopic tube (5) at the upper end The invention relates to a threaded rod (8); the outer side of the telescopic tube (5) at the upper end is fixedly connected to a limit block (9); a stopper (10) corresponding to the limit block (9) is fixedly connected to the circular hole (3) on the upper positioning plate (1); the diameter of the circular hole (3) on the lower positioning plate (2) is larger than the diameter of the circular hole (3) of the upper positioning plate (1); a corrugated tube (11) is placed in the circular hole (3) of the lower positioning plate (2); a clamp (12) for fixing the corrugated tube (11) is arranged at the upper end of the circular hole (3); and the plurality of positioning devices have the same structure.

2. A mold for making a column top reserved hole according to claim 1, characterized in that: The clamp (12) comprises two arc tubes (13); one end of each arc tube (13) is fixedly connected with a slider (14); each slider (14) is slidably connected with the lower positioning plate (2); an adjustment column (15) is provided at each of the two sliders (14); both ends of the outer side of the adjustment column (15) are respectively provided with a positive thread (16) and a negative thread (17); the positive thread (16) and the negative thread (17) are respectively threadedly connected with the corresponding slider (14).

3. A mold for making a column top reserved hole according to claim 2, characterized in that: The inner sides of the two circular arc tubes (13) are fitted with the outer side of the corrugated tube (11); when the two circular arc tubes (13) are fitted with the corrugated tube (11), a gap exists between the two circular arc tubes (13).

4. The mold for making a column top reserved hole according to claim 1, characterized in that: An auxiliary steel bar (18) is fixedly connected to the upper end of the upper positioning plate (1); and a connecting ring (19) is fixed to the middle of the auxiliary steel bar (18).

5. The mold for making a column top reserved hole according to claim 1, characterized in that: The limiting strip (6) at the lower end is fixedly connected to the threaded tube (7) via a connecting frame.

6. The mold for making a column top reserved hole according to claim 1, characterized in that: The circular holes (3) are evenly distributed on the upper positioning plate (1) and the lower positioning plate (2); the upper positioning plate (1) and the lower positioning plate (2) are fixedly connected via a bracket.

7. The mold for making a column top reserved hole according to claim 1, characterized in that: The telescopic tube (5) at the lower end is detachably connected to the upper end of the leather tube (4).

8. The mold for making a column top reserved hole according to claim 1, characterized in that: The upper ends of the threaded rods (8) are fixedly connected with control handles (20).

9. The mold for making a column top reserved hole according to claim 1, characterized in that: Four connecting plates (21) are arranged on the outer side of the lower positioning plate (2); and connecting holes (22) are formed on the connecting plates (21).

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