Building concrete pile head presplitting device
By using a layer of airbag device on the pile head to form a sub -layered empty cavity, it solves the problem of high difficulty, time consumption, and difficulty in repairing the pile head, and achieves a more efficient and stable pile head treatment process.
Patent Information
- Application Number
- CN202420772968.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-15
AI Technical Summary
In the construction of cast-injected piles, the pile head needs to be chiseled off beyond the design elevation. In the existing technology, it is difficult and time-consuming to chisel piles. The plane after the pile is chiseled is uneven and the steel bars are easily bent and deformed, making it difficult to repair.
Adopt a layered airbag device. Through the layer setting of first airbags, secondary airbags, third airbags, and fourth airbags, the pre -fissure pile head to form a layered empty cavity. Preparatory and dismantling.
Through the use of a layer of airbag device, the difficulty and time consumption of the pile head cutting is reduced, the consistency of the cutting plane and the stability of the reinforcement are improved, and the difficulty of repair is reduced.
Smart Images
Figure CN222412965U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pile foundation engineering, in particular to a pre-cracking device for a concrete pile head of a building. Background Art
[0002] As an important pile foundation structure, cast-in-place piles are widely used in foundation engineering. However, since cast-in-place piles are poured with concrete in the formed pile holes, in order to avoid the influence of factors such as sediment at the bottom of the pile hole and soil particles falling during the pouring process on the concrete strength of the pile body, during the construction of cast-in-place piles, the pile top elevation is often 0.5 to 1.0 m higher than the design elevation. Therefore, after the concrete pile body is formed, the pile head that exceeds the design elevation needs to be chiseled off. The concrete pile head that exceeds the design elevation is invalid.
[0003] In the prior art, electric picks, breaker hammers, hydraulic pile drilling equipment and other related pile drilling equipment are often used to remove the pile head. Not only is pile drilling difficult and time-consuming, but there are also problems such as uneven pile drilling surface, easy bending and deformation of the pile head steel bars, and difficulty in repair after pile drilling. Utility Model Content
[0004] In view of the above problems, the purpose of the utility model is to provide a pre-cracking device for building concrete pile heads, so as to solve the problems that the pile heads are not only difficult and time-consuming to chisel, but also have uneven chiseled pile surfaces, easy bending and deformation of pile head steel bars, and difficulty in repair after chiseling. The first airbag, the second airbag, the third airbag, and the fourth airbag are arranged layer by layer to form a layered cavity in the pre-cracked pile head.
[0005] To achieve the above purpose, the utility model adopts the following technical solution: a pre-cracking device for a concrete pile head of a building, comprising a layered component, a pre-cracking component, a reinforcement component, and a pile head component, the layered component comprising a layered air bag, the pre-cracking component comprising a first air bag, the pile head component comprising a pile foundation and a pre-cracking pile head, a layered groove is provided on the peripheral wall of the layered air bag, a sleeve bag tube is connected to the lower end of the layered groove, a second air bag is arranged on the top of the first air bag, a third air bag is connected to the end of the second air bag away from the first air bag, a fourth air bag is connected to the end of the third air bag away from the second air bag, the reinforcement component comprising a first ring, a second ring, and a third ring, the outer wall of the first ring is connected to a reinforcing thread, and the inner wall of the first ring is connected to a flexible cushion layer.
[0006] The beneficial effects of the utility model are as follows: the operation of the air pump is started, and then the air pump works and inflates the first airbag, the second airbag, the third airbag and the fourth airbag through the connecting pipe port. When the pre-splitting pile head needs to be removed, the air valve of the connecting pipe port is opened and the first airbag, the second airbag, the third airbag and the fourth airbag are deflated. The first airbag, the second airbag, the third airbag and the fourth airbag are arranged layer by layer to form a layered cavity in the pre-splitting pile head. After the inflation work of the fourth airbag is completed, the fourth airbag is inflated and expanded. Then the third ring is sequentially sleeved on the outer wall of the fourth airbag from the inner ring to the outer ring according to the circular ring shape. The flexible cushion layer connected through the inner wall of the third ring is used for fitting contact with the outer wall of the fourth airbag, thereby preventing the third ring from causing wear and tear on the fourth airbag. At the same time, through the arrangement of the first ring, the second ring and the third ring, the point-shaped pre-splitting component viewed from above is connected from point to surface, thereby improving the stability of the device.
[0007] To avoid damage to the layered airbags when removing the pre-cracked pile head:
[0008] As a further improvement of the above technical solution: the wall of the layered groove is connected with a chiseled protective layer, and one end of the first airbag away from the second airbag extends to the inner cavity of the layered airbag and is connected thereto.
[0009] The beneficial effect of the present improvement is that when in use, the stratified airbag is expanded and bulged by inflation, and when the pre-cracked pile head is removed, the gas in the stratified airbag is released, thereby forming a cavity inside the pre-cracked pile head, and the provision of chiseling off the protective layer is used to avoid damage to the stratified airbag when the pre-cracked pile head is removed.
[0010] In order to achieve the contact between the isolation longitudinal reinforcement and the inner wall of the sleeve tube:
[0011] As a further improvement of the above technical solution: the inner wall of the sleeve bag tube is connected with a protective convex point, the protective convex point is a convex point of a hemispherical structure, and the top of the sleeve bag tube extends to the inner cavity of the layered airbag and is connected thereto.
[0012] The beneficial effect of this improvement is: after the sleeve bag tube is inflated and bulged, the sleeve bag tube is sleeved on the corresponding outer circle of the longitudinal steel bar, and the protective convex points are set to fit in contact with the longitudinal steel bar, thereby isolating the contact between the longitudinal steel bar and the inner circle wall of the sleeve bag tube, thereby avoiding damage to the inner circle wall of the sleeve bag tube caused by the longitudinal steel bar.
[0013] For the passage for gas flow:
[0014] As a further improvement of the above technical solution: the second airbag extends to the inner cavity of the first airbag at one end away from the third airbag, the third airbag extends to the inner cavity of the second airbag at one end away from the fourth airbag, and the fourth airbag extends to the inner cavity of the third airbag at one end away from the connecting pipe opening.
[0015] The beneficial effect of this improvement is that after the air pump is started, the gas generated by the air pump is transported to the first airbag, the second airbag, the third airbag, and the fourth airbag through the connecting pipe mouth to make them expand and bulge. The first airbag, the second airbag, the third airbag, and the fourth airbag are connected to each other to form a channel for the gas to flow.
[0016] In order to form a layered cavity in the pre-cracked pile head:
[0017] As a further improvement of the above technical solution: the end of the fourth airbag away from the third airbag is connected to a connecting pipe mouth, the end of the connecting pipe mouth away from the fourth airbag is connected to the output pipe of the inflation pump, and the connecting pipe mouth is provided with a matching air valve.
[0018] The beneficial effects of the present improvement are as follows: the air pump is started, and then the air pump works to inflate the first airbag, the second airbag, the third airbag, and the fourth airbag through the connecting pipe port; when the pre-cracked pile head needs to be removed, the air valve of the connecting pipe port is opened and the first airbag, the second airbag, the third airbag, and the fourth airbag are deflated; and the first airbag, the second airbag, the third airbag, and the fourth airbag are arranged layer by layer to form a layered cavity in the pre-cracked pile head.
[0019] For the protection of the second airbag:
[0020] As a further improvement of the above technical solution: the flexible cushion layer is a hollow cylindrical rubber layer, the height of the flexible cushion layer is the same as the height of the first ring, and the reinforcing wire is a double-stranded titanium wire.
[0021] The beneficial effect of this improvement is: after the inflation of the second airbag is completed, the second airbag is inflated and expanded, and then the first ring is sequentially sleeved on the outer wall of the second airbag in a circular shape from the inner circle to the outer circle, and the flexible cushion layer is provided to protect the second airbag.
[0022] To connect a second ferrule of the same circularity:
[0023] As a further improvement of the above technical solution: the size of the second collar matches the size of the third airbag, the inner wall of the second collar is connected with a flexible cushion layer, and the outer wall of the third collar is connected with a reinforcing thread.
[0024] The beneficial effect of this improvement is that the second ring is provided to be sleeved on the outer ring of the third airbag that has been inflated and expanded, and a reinforcing thread is connected to the outer wall of the third ring to connect the second ring of the same ring size.
[0025] In order to connect the pre-split components from point to surface:
[0026] As a further improvement of the above technical solution: the size of the third ring matches the size of the fourth airbag, the inner wall of the third ring is connected with a flexible cushion layer, and the outer wall of the third ring is connected with a reinforcing thread.
[0027] The beneficial effect of the present improvement is as follows: after the inflation of the fourth airbag is completed, the fourth airbag is inflated and expanded, and then the third ring is sequentially sleeved on the outer wall of the fourth airbag in a circular shape from the inner ring to the outer ring, and the flexible cushion layer connected to the inner wall of the third ring is used to fit in contact with the outer wall of the fourth airbag, thereby preventing the third ring from causing wear and tear on the fourth airbag, and at the same time, through the arrangement of the first ring, the second ring, and the third ring, the point-shaped pre-cracking component in a top-down view is connected from point to surface, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.
[0029] Figure 2 It is a side structural schematic diagram of the utility model.
[0030] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.
[0031] Figure 4 It is a schematic cross-sectional structural diagram of the first airbag of the utility model.
[0032] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B in the middle.
[0033] Figure 6 It is a schematic diagram of the top view of the structure of the first ferrule of the utility model.
[0034] In the figure: 1. layered assembly; 11. layered airbags; 12. layered grooves; 13. sleeve tube; 14. protective bumps; 16. chiseling out the protective layer; 2. pre-crack assembly; 21. first airbag; 22. second airbag; 23. third airbag; 24. fourth airbag; 25. connecting pipe opening; 3. reinforcement assembly; 31. first ring; 32. reinforcing thread; 33. flexible cushion; 34. second ring; 35. third ring; 4. pile head assembly; 41. pile foundation; 42. pre-cracked pile head. DETAILED DESCRIPTION
[0035] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0036] like Figure 1-6As shown, a pre-splitting device for a concrete pile head of a building comprises a layered component 1, a pre-splitting component 2, a reinforcement component 3, and a pile head component 4. The layered component 1 comprises a layered airbag 11, the pre-splitting component 2 comprises a first airbag 21, the pile head component 4 comprises a pile foundation 41 and a pre-splitting pile head 42, a layered groove 12 is provided on the peripheral wall of the layered airbag 11, a sleeve bag tube 13 is connected to the lower end of the layered groove 12, a second airbag 22 is provided on the top of the first airbag 21, a third airbag 23 is connected to the end of the second airbag 22 away from the first airbag 21, a fourth airbag 24 is connected to the end of the third airbag 23 away from the second airbag 22, and the reinforcement component 3 comprises The first ring 31, the second ring 34, and the third ring 35, the outer wall of the first ring 31 is connected with a reinforcing thread 32, the inner wall of the first ring 31 is connected with a flexible cushion layer 33, the wall of the layered groove 12 is connected with a chiseled protective layer 16, and the end of the first airbag 21 away from the second airbag 22 extends to the inner cavity of the layered airbag 11 and is connected thereto; when in use, the layered airbag 11 is inflated and bulged by inflation, and when the pre-splitting pile head 42 is removed, the gas in the layered airbag 11 is released, thereby forming a cavity inside the pre-splitting pile head 42, and the setting of the chiseled protective layer 16 is used to avoid damage to the layered airbag 11 when the pre-splitting pile head 42 is removed, and the sleeve bag tube The inner wall of the sleeve bag 13 is connected with a protective convex point 14, and the protective convex point 14 is a convex point of a hemispherical structure. The top of the sleeve bag tube 13 extends to the inner cavity of the layered airbag 11 and is connected thereto; after the sleeve bag tube 13 is inflated and bulged by inflation, the sleeve bag tube 13 is sleeved on the corresponding outer circle of the longitudinal steel bar, and the protective convex point 14 is set to fit the longitudinal steel bar to isolate the longitudinal steel bar from the contact with the inner wall of the sleeve bag tube 13, thereby preventing the longitudinal steel bar from causing damage to the inner wall of the sleeve bag tube 13, and the end of the second airbag 22 away from the third airbag 23 extends to the inner cavity of the first airbag 21, and the end of the third airbag 23 away from the fourth airbag 24 extends to the second airbag 21. 22 inner cavity, the end of the fourth airbag 24 away from the connecting pipe port 25 extends to the inner cavity of the third airbag 23; after the operation of the inflation pump is started, the gas generated by the inflation pump is transported to the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 through the connecting pipe port 25 to expand and swell them, and the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 are connected to each other to form a channel for gas flow, and the end of the fourth airbag 24 away from the third airbag 23 is connected to the connecting pipe port 25, and the end of the connecting pipe port 25 away from the fourth airbag 24 is connected to the output pipe of the inflation pump, and the connecting pipe port 25 is provided with a matching air valve;The air pump is started, and then the air pump works and inflates the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 through the connecting pipe port 25. When the pre-splitting pile head 42 needs to be removed, the air valve of the connecting pipe port 25 is opened and the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 are deflated. The first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 are arranged layer by layer to form a layered cavity in the pre-splitting pile head 42. The flexible cushion layer 33 is The hollow cylindrical rubber layer, the height of the flexible cushion layer 33 is the same as that of the first ring 31, and the reinforcing wire 32 is a double-stranded titanium wire; after the second airbag 22 is inflated, the second airbag 22 is inflated and expanded, and then the first ring 31 is sequentially sleeved on the outer wall of the second airbag 22 in a circular shape from the inner ring to the outer ring, and the flexible cushion layer 33 is provided to protect the second airbag 22. The size of the second ring 34 matches the size of the third airbag 23, and the inner wall of the second ring 34 is connected The third ring 35 has a flexible cushion layer 33, and the outer wall of the third ring 35 is connected with a reinforcing thread 32; the second ring 34 is set to be sleeved on the outer ring of the third airbag 23 that has been inflated and expanded, and the outer wall of the third ring 35 is connected with a reinforcing thread 32, which is used to connect the second ring 34 of the same annularity, and the size of the third ring 35 matches the size of the fourth airbag 24. The inner wall of the third ring 35 is connected with a flexible cushion layer 33, and the outer wall of the third ring 35 is connected with a reinforcing thread 32; the inflation process of the fourth airbag 24 is completed. After the operation, the fourth airbag 24 is inflated and bulged, and then the third ring 35 is sleeved on the outer wall of the fourth airbag 24 in a circular shape from the inner ring to the outer ring. The flexible cushion layer 33 connected through the inner wall of the third ring 35 is used to fit and contact with the outer wall of the fourth airbag 24, thereby preventing the third ring 35 from causing wear and tear on the fourth airbag 24. At the same time, the first ring 31, the second ring 34, and the third ring 35 are arranged to form a point-to-surface connection between the point-shaped pre-cracking assembly 2 in a top view, thereby improving the stability of the device. ;
[0037] The working principle of the utility model is as follows: when in use, the air pump is started, and the gas generated by the air pump is transported to the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 through the connecting pipe port 25 to expand and swell them. Through the mutual communication between the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24, a channel for gas flow is provided. After the sleeve bag tube 13 is expanded and swelled by inflation, the sleeve bag tube 13 is sleeved on the corresponding outer ring of the longitudinal steel bar, and the protective convex point 14 is provided to be used with the longitudinal steel bar. The fitting contact of the steel bars is realized to isolate the contact between the longitudinal steel bars and the inner wall of the sleeve bag tube 13, thereby preventing the longitudinal steel bars from damaging the inner wall of the sleeve bag tube 13. After the inflation of the second airbag 22 is completed, the second airbag 22 is inflated and expanded, and then the first ring 31 is sequentially sleeved on the outer wall of the second airbag 22 in a circular shape from the inner circle to the outer circle. The flexible cushion layer 33 is provided to protect the second airbag 22. The second ring 34 is provided to sleeve on the inflated and expanded third airbag 2 3 outer ring, a reinforcing wire 32 is connected to the outer wall of the third ring 35, which is used to connect the second ring 34 of the same ring degree, and the third ring 35 is sequentially sleeved on the outer wall of the fourth airbag 24 from the inner ring to the outer ring in a circular shape, and the flexible cushion layer 33 connected through the inner wall of the third ring 35 is used to fit and contact with the outer wall of the fourth airbag 24, thereby preventing the third ring 35 from causing wear and tear on the fourth airbag 24, and at the same time, the first ring 31, the second ring 34, and the third ring 35 are arranged to form a dot-shaped top view. The pre-splitting assembly 2 forms a connection from point to surface, thereby improving the stability of the device. When the pre-splitting pile head 42 needs to be removed, the air valve of the connecting pipe port 25 is opened and the first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 are deflated. The first airbag 21, the second airbag 22, the third airbag 23, and the fourth airbag 24 are arranged layer by layer to form a layered cavity for the pre-splitting pile head 42. The arrangement of the protective layer 16 is removed to avoid damage to the layered airbags 11 when the pre-splitting pile head 42 is removed.
[0038] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0039] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A pre-splitting device for a building concrete pile head, comprising a layered component (1), a pre-splitting component (2), a reinforcement component (3), and a pile head component (4), wherein the layered component (1) comprises a layered air bag (11), the pre-splitting component (2) comprises a first air bag (21), and the pile head component (4) comprises a pile foundation (41) and a pre-splitting pile head (42), characterized in that: The circumferential wall of the layered airbag (11) is provided with a layered groove (12), the lower end of the layered groove (12) is connected to a sleeve bag tube (13), a second airbag (22) is arranged on the top of the first airbag (21), the end of the second airbag (22) away from the first airbag (21) is connected to a third airbag (23), the end of the third airbag (23) away from the second airbag (22) is connected to a fourth airbag (24), the reinforcement component (3) comprises a first ring (31), a second ring (34), and a third ring (35), the outer wall of the first ring (31) is connected to a reinforcing thread (32), and the inner wall of the first ring (31) is connected to a flexible cushion layer (33).
2. A building concrete pile head pre-cracking device according to claim 1, characterized in that: The wall of the layered groove (12) is connected to a chiseled protective layer (16), and one end of the first airbag (21) away from the second airbag (22) extends to the inner cavity of the layered airbag (11) and is in communication with the inner cavity.
3. A building concrete pile head pre-cracking device according to claim 1, characterized in that: The inner wall of the sleeve bag tube (13) is connected with a protective convex point (14), and the protective convex point (14) is a convex point with a hemispherical structure. The top of the sleeve bag tube (13) extends to the inner cavity of the layered airbag (11) and is connected thereto.
4. A building concrete pile head pre-cracking device according to claim 1, characterized in that: One end of the second airbag (22) away from the third airbag (23) extends to the inner cavity of the first airbag (21), one end of the third airbag (23) away from the fourth airbag (24) extends to the inner cavity of the second airbag (22), and one end of the fourth airbag (24) away from the connecting pipe opening (25) extends to the inner cavity of the third airbag (23).
5. A building concrete pile head pre-cracking device according to claim 1, characterized in that: One end of the fourth airbag (24) away from the third airbag (23) is connected to a connecting pipe opening (25), and one end of the connecting pipe opening (25) away from the fourth airbag (24) is connected to an output pipe of an air pump, and the connecting pipe opening (25) is provided with a matching air valve.
6. A building concrete pile head pre-cracking device according to claim 1, characterized in that: The flexible cushion layer (33) is a hollow cylindrical rubber layer, the height of the flexible cushion layer (33) is the same as the height of the first ferrule (31), and the reinforcing wire (32) is a double-stranded winding titanium wire.
7. A building concrete pile head pre-splitting device according to claim 1, characterized in that: The size of the second collar (34) matches the size of the third airbag (23); the inner wall of the second collar (34) is connected to a flexible cushion layer (33); and the outer wall of the third collar (35) is connected to a reinforcing thread (32).
8. A building concrete pile head pre-cracking device according to claim 1, characterized in that: The size of the third collar (35) matches the size of the fourth airbag (24); the inner wall of the third collar (35) is connected to a flexible cushion layer (33); and the outer wall of the third collar (35) is connected to a reinforcing thread (32).