A steel casing device for bite piles with a joint pipe

Abstract

The present invention provides a bite pile steel casing device with a joint pipe, comprising: a steel casing main body and an A2 pile, wherein the steel casing main body is a cylindrical hollow structure. Compared with the prior art, the present invention has the following beneficial effects: by using an inner lining holder to connect with the inner lining arc plate, by using two groups of pile guide plates and two groups of lining arc plates to locate the cutting positions of the A1 piles and the A2 piles, at the same time, the pile guide plates and lining arc plates made of steel rolled can effectively enhance their internal strength, by using an inner core laminate and an inner support frame to improve the internal strength of the steel casing main body, at the same time, the rounded structure and the decagonal shape of the inner support frame can effectively expand the support points of the inner support frame and the inner core laminate, and enhance the supporting effect inside the steel casing main body, by using an outer sleeve joint spiral and an inner sleeve joint spiral to facilitate the quick connection of the inner and outer sides of the inner core laminate with the inner sleeve and the outer sleeve, and enhance the connection effect between the inner sleeve, the outer sleeve and the inner core laminate.

Description

Technical Field

[0001] The invention relates to a occlusal pile steel casing device with a joint pipe, belonging to the technical field of occlusal pile steel casings. Background Art

[0002] The interlocking pile steel casing is a structure commonly used in pile foundation construction. It is mainly used to protect the pile hole, prevent soil collapse, and provide a stable construction environment. The interlocking pile technology refers to the partial overlap between adjacent piles during the construction process to form an interlocking relationship, thereby improving the stability and bearing capacity of the overall structure. As a key component in the interlocking pile construction, the steel casing is usually made of high-strength steel and has good bending and compressive properties. Before construction, the steel casing is pre-installed to the designed position, and its inner diameter is slightly larger than the pile diameter to facilitate the pouring of the pile body. During installation, the steel casing needs to be accurately aligned and verticality must be ensured to ensure the verticality and position accuracy of the pile body. The interlocking pile steel casing is a structure used for deep foundation pit support. It is connected by interlocking to form a continuous wall to provide sufficient support and waterproof performance. If the interlocking pile steel casing does not have multiple casing joints, the following problems may arise:

[0003] Without multiple casing joints, the length of the casing is limited, requiring frequent replacement during construction, which increases the complexity and time cost of construction. Frequent replacement may lead to a decrease in construction accuracy, affecting the overall quality and stability of the interlocking pile. At the same time, the presence of multiple casing joints can improve the overall stiffness and stability of the interlocking pile and reduce deformation caused by soil pressure or water pressure. A single long casing without joints may not be able to effectively disperse the pressure when subjected to stress, resulting in local stress concentration and increasing the risk of structural damage. Therefore, there is an urgent need for an interlocking pile steel casing device with a joint pipe to solve the above problems. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a snap pile steel casing device with a joint pipe, comprising: a casing body and an A2 pile, so as to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is achieved as follows: a steel casing device for an interlocking pile with a joint pipe, comprising: a steel casing body, a joint pipe holder, a pile guide plate, an inner lining holder, an inner lining arc plate, a cutting groove, an inner casting cavity, an A1 pile, and an A2 pile. The steel casing body is a cylindrical hollow structure, and two sets of slide grooves are provided at the left and right ends of the inner side of the steel casing body for interlocking and positioning with four sets of inner lining holders.

[0006] The cross section of the chute is a trapezoidal structure when viewed from above. The steel casing body is provided in several groups, and the groups of steel casing bodies are assembled and installed in a vertical manner. Each group of the chute is provided with a group of joint pipe holders for supporting the pile guide plate.

[0007] The cross-section of the joint pipe clamp is an arc-edged triangular structure, and the joint pipe clamps are evenly distributed on the front and rear sides of the outer side of the pile guide plate. A group of lining clamps for connecting with the lining arc plate is provided in the middle position of the inner side of the pile guide plate, which can be connected with the lining arc plate by using the lining clamps.

[0008] As a preferred embodiment, a group of lining arc plates are provided on the outside of the lining card seat for preventing internal pipe bursts, and the outer sides of the lining arc plates are fitted with the pile guide plates and fixed by welding;

[0009] The inner lining card seat is connected and fixed with the inner lining arc plate and the meat pile guide plate, and supports the inner lining arc plate and the meat pile guide plate. The inner lining card seat is a steel material support. The inner lining card seat is a segmented structure, the left section of which is an integral structure with the inner side of the meat pile guide plate, and the right section of the inner lining card seat is an integral structure with the inner side of the inner lining arc plate;

[0010] The steel casing body is composed of two groups of pile guide plates and two groups of inner lining arc plates, and each group of pile guide plates and the upper and lower sides of each group of inner lining arc plates are supported and connected by a group of inner lining brackets. The cross-section of the pile guide plates and the inner lining arc plates is an arc structure when viewed from above, and are both made of rolled steel. The cutting positions of A1 piles and A2 piles can be positioned by using two groups of pile guide plates and two groups of inner lining arc plates. At the same time, the pile guide plates and inner lining arc plates made of steel can effectively enhance their internal strength.

[0011] As a preferred embodiment, the steel casing body includes an outer sleeve and an outer embedded concave block, the inner part of the outer sleeve is a hollow structure, and the inner part of the outer sleeve is provided with a plurality of groups of inner core laminates for enhancing the supporting strength of the outer sleeve;

[0012] The inner core stack is provided in a plurality of groups, and a group of inner support frames for engaging and positioning the inner core stack is provided between the groups of inner core stacks. The cross section of the inner support frame is a decagonal shape with rounded corners when viewed from above. The inner support frame is made of forged steel. The inner support frame is provided with a plurality of embedded grooves for engaging with the single-piece inner core stack. The cross section of the embedded groove is a rectangular structure when viewed from the left.

[0013] A group of inner positioning rubber pads are provided on the upper and lower inner walls of the inner side of the embedded groove for limiting the movement position of the single-piece inner core laminate. A group of upper positioning rubber pads are provided on the outer sides of the upper and lower ends of the inner support frame for preventing the inner support frame from being displaced left and right as a whole. Both the upper positioning rubber pads and the inner positioning rubber pads are rubber anti-slip pads with herringbone anti-slip bumps, which can improve the strength of the interior of the steel casing body by using the inner core laminate and the inner support frame. At the same time, the rounded structure and decagonal shape of the inner support frame can effectively expand the support points of the inner support frame and the inner core laminate, and enhance the support effect inside the steel casing body.

[0014] As a preferred embodiment, the outer side of the inner core laminate is provided with an outer connecting spiral for mutually rotating with the inner side of the outer sleeve, and the inner side of the inner core laminate is provided with an inner sleeve connecting spiral for mutually rotating with the outer side of the inner sleeve;

[0015] The outer sleeve and the inner sleeve spiral are both pipe threads, and the thread angle is set to 55 degrees. When the outer sleeve and the inner sleeve are fully screwed with the inner core laminate, the outer sleeve, the inner sleeve and the inner core laminate constitute a set of steel casing bodies. The upper end of the outer sleeve is provided with a set of connectors for connecting with multiple steel casing bodies.

[0016] The connecting head seat includes an upper connecting thread, an inner fixing hole, an embedded slot and an outer embedded protrusion. The connecting head seat is provided with two groups. A group of upper connecting threads for threaded engagement with the upper connecting ring is provided on the outer side of the connecting head seat at the upper end. The outer and inner sleeve connecting threads can be used to facilitate the quick connection of the inner and outer sides of the inner core laminate with the inner sleeve and the outer sleeve, and enhance the connection effect between the inner sleeve, the outer sleeve and the inner core laminate.

[0017] As a preferred embodiment, the outer side of the lower end connector seat is provided with a group of lower connecting threads for mutually threaded engagement with the lower connecting ring, and the upper end of the upper end connector seat is provided with a plurality of groups of embedded grooves for mutually engaging with the external embedded protrusions at the lower end of other steel casing bodies;

[0018] The outer side of the embedded card slot is provided with a plurality of groups of external embedded protrusions for interlocking with the embedded card slots at the lower end of other steel casing bodies. The cross section of the external embedded protrusions is a trapezoidal structure when viewed from the front, and the cross section of the inner side of the embedded card slot is consistent with the cross section of the external embedded protrusions;

[0019] The connecting head seat is provided with several groups of internal fixing holes for reinforcing the vertical splicing and installation of multiple steel casing bodies. Each two groups of internal fixing holes inside the steel casing bodies are connected by several groups of bolts and fixed. By using the connecting head seat and the embedded card groove inside the connecting head seat, the external embedded protrusions at the lower ends of other steel casing bodies can be engaged with each other, so that multiple steel casing bodies can be quickly connected, and the vertical splicing of multiple steel casing bodies can be reinforced by using several groups of internal fixing holes.

[0020] As a preferred embodiment, a group of external shaping fixed nets are provided on the outside of the outer sleeve for maintaining the strength of the pile casting, and the outer side of the external shaping fixed nets is composed of a steel bar material interlaced and combined;

[0021] The outer forming fixed net is a columnar structure, and the upper end of the outer forming fixed net is provided with a group of upper connecting rings for screwing and connecting with the upper connecting threads, and the lower end of the outer forming fixed net is provided with a group of lower connecting rings for screwing and connecting with the lower connecting threads;

[0022] The upper connecting ring and the lower connecting ring are both welded and fixed to the outer forming fixed net. The upper connecting ring and the lower connecting ring are both formed by rolling a steel material. The cross-sectional diameter length of the outer forming fixed net when viewed from above is consistent with the cross-sectional diameter length of the inner side of the outer cylinder sleeve. The outer forming fixed net is arranged on the outside of the outer cylinder sleeve and has the same cross-sectional diameter length as the A1 pile and the A2 pile. By using the outer forming fixed net, the strength of the concrete column cast after the outer cylinder sleeve main body is removed can be reinforced. At the same time, the upper connecting ring and the lower connecting ring can increase the strength of the outer forming fixed net, thereby preventing the outer forming fixed net from deformation.

[0023] As a preferred embodiment, the inner lining card seat includes a card seat core plate and a load-bearing insert, and the upper ends of the left and right sides of the card seat core plate are each provided with a set of upper positioning inserts for interlocking with the upper positioning insert and the inner positioning insert;

[0024] The cross section of the upper positioning insert is a right triangle structure, and the two groups of upper positioning inserts at the upper end of the card seat core plate are arranged in a mirror image manner, and the front cross section of the two groups of upper positioning inserts at the upper end of the card seat core plate is an isosceles trapezoidal structure. The left side of the card seat core plate is provided with a plurality of groups of outer inserts for interlocking with the inner part of the upper positioning insert;

[0025] The outer embedding row is provided with several groups of rectangular embedding grooves and rectangular embedding blocks for interlocking with the inner part of the upper positioning embedding seat. The right side of the card seat core plate is provided with a group of inner embedding rows for interlocking with the inner positioning row teeth. The inner embedding rows have the same specifications as the outer embedding rows. The positions of the two groups of upper positioning embedding heads are limited by using the upper positioning embedding seat and the inner positioning embedding seat. At the same time, the support effect of the card seat core plate is maintained by the inner embedding row and the outer embedding row.

[0026] As a preferred embodiment, the lower end of the upper positioning seat is provided with a group of external positioning teeth for engaging with the external teeth. The external positioning teeth have the same structure as the internal positioning teeth. The lower ends of the external positioning teeth and the internal positioning teeth are both provided with a group of load-bearing seats for engaging with and supporting the left and right sides of the lower end of the card seat core plate. The cross-section of the load-bearing seats is a right-angled trapezoidal structure, and the two groups of load-bearing seats are respectively integrated with the external positioning seat and the internal positioning seat. By using two groups of load-bearing seats, they can engage with and support the left and right sides of the lower end of the card seat core plate.

[0027] As a preferred embodiment, the joint pipe clamp includes an inner core seat and a second positioning strip. The inner core seat is arranged in the middle position inside the joint pipe clamp and has a triangular cross-section when viewed from above. The inner core seat is made of steel, and an outer reinforcement layer is provided on the outside of the inner core seat for improving the support strength of the inner core seat. The outer reinforcement layer is made of Q460 steel.

[0028] The outer side of the outer reinforcement sleeve is provided with a positioning strip 1 on the side close to the steel casing main body for interlocking with the inner sliding groove of the steel casing main body, and the outer side of the outer reinforcement sleeve is provided with a positioning strip 2 on the side close to the meat pile guide plate for interlocking with the outer sliding groove of the meat pile guide plate. The cross-section of the positioning strip 1 and the positioning strip 2 is an isosceles trapezoidal structure when viewed from above. Each group of the positioning strip 1 and the positioning strip 2 are integrated with a group of outer reinforcement sleeves. The position of the joint pipe holder can be determined by using the positioning strip 1 and the positioning strip 2, and the connection support strength of the joint pipe holder can be improved by using the outer reinforcement sleeve.

[0029] After adopting the above technical solution, the beneficial effects of the present invention are: by using the inner lining holder to connect with the inner lining arc plate, using two sets of pile guide plates and two sets of inner lining arc plates to locate the cutting positions of the A1 pile and the A2 pile, and at the same time, the pile guide plates and the inner lining arc plates made of rolled steel can effectively enhance the internal strength;

[0030] The inner core laminate and the inner support frame are used to improve the internal strength of the steel casing body. At the same time, the rounded corner structure and the decagonal shape of the inner support frame can effectively expand the support points of the inner support frame and the inner core laminate and enhance the support effect inside the steel casing body. The outer sleeve and the inner sleeve spiral are used to facilitate the quick connection of the inner and outer sides of the inner core laminate with the inner sleeve and the outer sleeve, and strengthen the connection effect between the inner sleeve, the outer sleeve and the inner core laminate.

[0031] By using the connecting head seat and the embedded card groove inside the connecting head seat to engage with the external embedded protrusions at the lower end of other steel casing bodies, multiple steel casing bodies can be quickly connected. By using several groups of internal fixing holes, the vertical splicing of multiple steel casing bodies is reinforced. By using the external forming fixed net, the strength of the concrete column poured after the outer sleeve body is removed can be reinforced. At the same time, the upper connecting ring and the lower connecting ring can improve the strength of the external forming fixed net, thereby preventing the external forming fixed net from deformation.

[0032] The positions of the two groups of upper positioning heads are limited by using upper positioning inserts and inner positioning inserts, while the supporting effect of the base core plate is maintained by using inner and outer insert rows, and the left and right sides of the lower end of the base core plate are embedded and supported by using two groups of load-bearing inserts, and the position of the joint pipe base is determined by using positioning strip one and positioning strip two, while the connection support strength of the joint pipe base is improved by using an outer reinforcement sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a schematic diagram of the front side plan view of the structure of the interlocking pile steel casing device with a joint pipe and the installation position relationship between the A1 pile and the A2 pile of the present invention;

[0035] Figure 2 This is a front-side top view of a snap pile steel casing device with a joint pipe according to the present invention;

[0036] Figure 3 This is a schematic diagram of the top view of the interior of the steel casing body in a snap pile steel casing device with a joint pipe according to the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of the inner lining holder in a snap pile steel casing device with a joint pipe according to the present invention, viewed from the left oblique front side;

[0038] Figure 5 This is a front-side top view of the internal structure of the outer sleeve in a snap-fit ​​pile steel casing device with a joint pipe according to the present invention;

[0039] Figure 6 This is a schematic diagram of the front side plan view of the inner support frame in a snap pile steel casing device with a joint pipe according to the present invention;

[0040] Figure 7This is a schematic diagram of the front side top view of the connection relationship between the connector seat and the outer sleeve in a snap-in pile steel casing device with a joint pipe according to the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of a occlusal pile steel casing device with a joint pipe in the present invention when the pile guide plate and the inner lining arc plate are connected to the inner lining holder from the left oblique front side;

[0042] Figure 9 This is a schematic diagram of the front side plan view of the interior of the outer and inner forming fixed net of a snap pile steel casing device with a joint pipe according to the present invention;

[0043] In the figure: 1- steel casing body, 2- joint pipe holder, 3- pile guide plate, 4- lining holder, 5- lining arc plate, 6- cutting groove, 7- inner casting cavity, 8- A1 pile, 9- A2 pile;

[0044] Outer sleeve, 12-inner core laminate, 13-inner support frame, 14-outer outer joint spiral pattern, 15-inner sleeve joint spiral pattern, 16-inner sleeve, 17-embedded groove, 18-upper positioning rubber pad, 19-inner positioning rubber pad, 101-upper connecting ring, 102-outer forming fixed net, 103-casting trough, 104-lower connecting ring, 105-lower connecting thread, 106-upper connecting thread, 107-inner fixing hole, 108-inner embedded slot, 109-outer embedded concave block;

[0045] 41-card seat core plate, 42-upper positioning insert, 43-external insert row, 44-inner insert row, 45-upper positioning insert, 46-inner positioning insert, 47-inner positioning row teeth, 48-load-bearing insert;

[0046] 21-inner core seat, 22-outer reinforcement sleeve, 23-positioning fillet 1, 24-positioning fillet 2. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0048] See also Figures 1-9 A steel casing device for an interlocking pile with a joint pipe comprises a steel casing body 1, a joint pipe holder 2, an inner lining holder 4, and an A2 pile 9. The steel casing body 1 is a cylindrical hollow structure. Two sets of slide grooves for interlocking and positioning with four sets of inner lining holders 4 are provided at both the left and right ends of the inner side of the steel casing body 1.

[0049] The cross section of the chute is a trapezoidal structure when viewed from above. There are several groups of steel casing bodies 1, and the groups of steel casing bodies 1 are assembled and installed in a vertical manner. Inside each group of chute is a group of joint pipe holders 2 for supporting the pile guide plate 3.

[0050] The cross-section of the joint pipe clamp 2 is an arc-edged triangular structure. The joint pipe clamps 2 are evenly distributed on the front and rear sides of the outer side of the pile guide plate 3. A group of lining clamps 4 for connecting with the lining arc plate 5 is provided in the middle position of the inner side of the pile guide plate 3. It can be connected with the lining arc plate 5 by using the lining clamps 4.

[0051] See also Figure 1-Figure 3 A set of inner lining arc plates 5 for preventing internal pipe bursts are provided on the outside of the inner lining seat 4. The outer side of the inner lining arc plates 5 is fitted with the pile guide plate 3 and fixed by welding;

[0052] The lining card seat 4 is connected and fixed with the lining arc plate 5 and the meat pile guide plate 3, and supports the lining arc plate 5 and the meat pile guide plate 3. The lining card seat 4 is a steel material support. The lining card seat 4 is a segmented structure. The left section and the inner side of the meat pile guide plate 3 are an integrated structure, and the right section of the lining card seat 4 and the inner side of the lining arc plate 5 are an integrated structure.

[0053] The steel casing body 1 is composed of two groups of pile guide plates 3 and two groups of inner lining arc plates 5, and the upper and lower sides of each group of pile guide plates 3 and each group of inner lining arc plates 5 are supported and connected by a group of inner lining brackets 4. The cross-section of the pile guide plates 3 and the inner lining arc plates 5 is an arc structure when viewed from above, and are both made of rolled steel. The cutting positions of A1 piles 8 and A2 piles 9 can be positioned by using two groups of pile guide plates 3 and two groups of inner lining arc plates 5. At the same time, the pile guide plates 3 and inner lining arc plates 5 rolled with steel can effectively enhance their internal strength.

[0054] See also Figures 1-9As the first embodiment of the present invention: first, the staff uses heavy lifting machinery to lift the single-section steel casing body 1 to the center position between the A1 pile 8 and the A2 pile 9, and then uses a hydraulic full-casing drilling rig to shake the machinery to press the lower end of the steel casing body 1 to the lower end of the center position between the A1 pile 8 and the A2 pile 9. Then, according to the specific lengths of the A1 pile 8 and the A2 pile 9, multiple steel casing bodies 1 are vertically connected until the heights of the multiple steel casing bodies 1 are consistent with the specific lengths of the A1 pile 8 and the A2 pile 9. Then, a grab equipment is used to dig out the soil inside the steel casing body 1, and then the joint pipe clamp 2 is installed and engaged along the four groups of slide grooves on the inner side of the steel casing body 1. Then, according to the positions of the four groups of joint pipe clamps 2, the combination of the pile guide plate 3, the lining clamp 4 and the lining arc plate 5 are inserted in sequence. Into the interior of the steel casing body 1, and the combination of the pile guide plate 3, the lining holder 4 and the lining arc plate 5 is engaged with the inner side of the steel casing body 1 and the four groups of joint pipe holders 2. When the steel casing is pressed down, the steel casing body 1 and the two groups of pile guide plates 3 can divide the concrete inside the A1 pile 8 and the A2 pile 9, and retain them inside the cutting groove 6. When the concrete division is completed, the staff then pours concrete inside the inner pouring cavity 7. At the end of pouring concrete, the hydraulic full-casing drill rig is used again to shake the machine to rotate the steel casing body 1 upward and pull it out, so that the outer sleeve 11 is separated from the upper connecting ring 101 and the lower connecting ring 104, and the outer formed fixed net 102 is used for range reinforcement between the A1 pile 8 and the A2 pile 9. After the concrete solidifies, the pile forming operation of the interlocking pile is completed.

[0055] See also Figure 5-Figure 7 as well as Figure 9 The steel casing body 1 includes an outer sleeve 11, an inner core laminate 12, an outer forming fixed net 102 and an outer embedded concave block 109. The inner part of the outer sleeve 11 is a hollow structure. The inner part of the outer sleeve 11 is provided with several groups of inner core laminates 12 for strengthening the support strength of the outer sleeve 11.

[0056] The inner core laminate 12 is provided in a plurality of groups, and a group of inner support frames 13 for engaging and positioning the inner core laminate 12 is provided between the groups. The inner support frames 13 have a decagonal shape with rounded corners when viewed from above. The inner support frames 13 are made of forged steel. The inner support frames 13 have a plurality of embedded grooves 17 for interlocking with the single-piece inner core laminate 12. The embedded grooves 17 have a rectangular structure when viewed from the left.

[0057] The outer side of the inner core laminate 12 is provided with an outer connecting spiral 14 for connecting with the inner side of the outer sleeve 11, and the inner side of the inner core laminate 12 is provided with an inner sleeve connecting spiral 15 for connecting with the outer side of the inner sleeve 16;

[0058] The outer sleeve spiral 14 and the inner sleeve spiral 15 are both a pipe thread, and the thread angle is set to 55°. When the outer sleeve 11 and the inner sleeve 16 are completely screwed together with the inner core laminate 12, the outer sleeve 11, the inner sleeve 16 and the inner core laminate 12 constitute a group of steel casing bodies 1, and the upper end of the outer sleeve 11 is provided with a group of connecting head seats for combined connection with multiple steel casing bodies 1.

[0059] See also Figure 1-Figure 7 as well as Figure 9 As a second embodiment of the present invention: According to the description in the first embodiment, further, when the steel casing body 1 is pressed down between the A1 pile 8 and the A2 pile 9, the outer side of the steel casing body 1 and the concrete material of the A1 pile 8 and the A2 pile 9 produce a range cutting operation, and a large pressure is generated on the steel casing body 1. When the steel casing body 1 and the concrete material are cut, the outer side of the inner core laminate 12 is provided with an outer joint spiral 14 for mutually rotating with the inner side of the outer sleeve 11, and the inner side of the inner core laminate 12 is provided with a outer joint spiral 14 for mutually rotating with the outer side of the inner sleeve 16. The inner sleeve spiral pattern 15, the inner core laminate 12 provides support for the outer side of the inner sleeve 16 and the inner side of the outer sleeve 11, and the inner wall of the upper and lower sides of the inner side of the embedded groove 17 are provided with a group of inner positioning rubber pads 19 for limiting the movement position of the single-piece inner core laminate 12, and the outer sides of the upper and lower ends of the inner support frame 13 are provided with a group of upper positioning rubber pads 18 for preventing the overall left and right displacement of the inner support frame 13. The upper positioning rubber pads 18 and the inner positioning rubber pads 19 are both a kind of rubber anti-slip pads with herringbone anti-slip bumps, and effectively prevent multiple single-piece inner core laminates 12 from moving with the inner support frame. 13, thereby ensuring the overall support effect of the inner core laminate 12, and making the inner core laminate 12 and the inner support frame 13 to improve the internal strength of the steel casing body 1, while its rounded structure and decagonal shape of the inner support frame 13 can effectively expand the support point of the inner support frame 13 and the inner core laminate 12, and enhance the support effect of the steel casing body 1. When the steel casing body 1 is cut with the concrete material, it can effectively ensure the internal strength of the steel casing body 1 and prevent the outer pressure of the steel casing body 1 from being too large and causing deformation. When the steel casing body 1 is connected, since the connecting head seat includes an upper connecting thread 106, an internal fixing hole 107, an embedded card groove 108 and an external embedded protrusion, the connecting head seat is provided with two groups. A group of upper connecting threads 106 for threaded engagement with the upper connecting ring 101 is provided on the outer side of the upper end connecting head seat. By using the outer connecting spiral 14 and the inner sleeve connecting spiral 15, the inner and outer sides of the inner core laminate 12 can be quickly connected to the inner sleeve and the outer sleeve, and the connection effect between the inner sleeve 16, the outer sleeve 11 and the inner core laminate 12 can be strengthened.

[0060] See also Figure 7 as well as Figure 9The outer side of the lower connecting head seat is provided with a group of lower connecting threads 105 for mutually threaded engagement with the lower connecting ring 104, and the upper end of the upper connecting head seat is provided with several groups of embedded card grooves 108 for mutually engaging with the outer embedded protrusions at the lower end of other steel casing bodies 1;

[0061] The outer side of the embedded card slot 108 is provided with a plurality of groups of external embedded protrusions for interlocking with the embedded card slot 108 at the lower end of the other steel casing body 1. The cross section of the external embedded protrusion is a trapezoidal structure when viewed from the front, and the cross section shape of the internal embedded card slot 108 is consistent with the cross section shape of the external embedded protrusion;

[0062] Several groups of internal fixing holes 107 are provided inside the connecting head seat for reinforcing the vertical splicing and installation of multiple steel casing bodies 1. The internal fixing holes 107 inside each two groups of steel casing bodies 1 are connected by several groups of bolts and fixed. By using the connecting head seat and the embedded card grooves 108 inside the connecting head seat, the external embedded protrusions at the lower ends of other steel casing bodies 1 can be engaged with each other, so that multiple steel casing bodies 1 can be quickly connected. The vertical splicing of multiple steel casing bodies 1 can be reinforced by using several groups of internal fixing holes 107.

[0063] See also Figure 1-Figure 7 as well as Figure 9 , a group of outer forming fixed nets 102 for maintaining the strength of the pile casting are provided on the outside of the outer sleeve 11, and the outer side of the outer forming fixed net 102 is composed of a steel bar material interlaced combination;

[0064] The outer forming fixed net 102 is a columnar structure, and the upper end of the outer forming fixed net 102 is provided with a group of upper connecting rings 101 for screwing together with the upper connecting threads 106, and the lower end of the outer forming fixed net 102 is provided with a group of lower connecting rings 104 for screwing together with the lower connecting threads 105;

[0065] The upper connecting ring 101 and the lower connecting ring 104 are both welded and fixed to the outer molded fixed net 102. The upper connecting ring 101 and the lower connecting ring 104 are both formed by rolling a steel material. The cross-sectional diameter length of the outer molded fixed net 102 when viewed from above is consistent with the cross-sectional diameter length of the inner side of the outer cylinder sleeve 11. The outer molded fixed net 102 is arranged on the outside of the outer cylinder sleeve 11 and has the same cross-sectional diameter length as the A1 pile 8 and the A2 pile 9. By using the outer molded fixed net 102, the strength of the concrete column cast after the outer cylinder sleeve 11 main body is removed can be reinforced. At the same time, the upper connecting ring 101 and the lower connecting ring 104 can increase the strength of the outer molded fixed net 102, thereby preventing the outer molded fixed net 102 from deformation.

[0066] See also Figure 1-Figure 7 as well as Figure 9As the third embodiment of the present invention: according to the description in the first embodiment, further, when the steel casing body 1 is screwed in by the hydraulic full casing drilling rig, the outer molded fixed net 102 is fitted with the outer sides of the A1 pile 8 and the A2 pile 9. Since the outer molded fixed net 102 is a columnar structure, and the upper end of the outer molded fixed net 102 is provided with a group of upper connecting rings 101 for screwing together with the upper connecting threads 106, and the lower end of the outer molded fixed net 102 is provided with a group of lower connecting rings 104 for screwing together with the lower connecting threads 105, the upper connecting rings 101 and the lower connecting rings 104 are both welded to the outer molded fixed net 102, The connecting ring 101 and the lower connecting ring 104 are both formed by rolling a steel material. When the outer formed fixed net 102 is screwed into the ground following the outer cylinder sleeve 11, it can effectively ensure the strength of the outer formed fixed net 102, and at the same time make the upper connecting ring 101 and the lower connecting ring 104 contact the concrete of the A1 pile 8 and the concrete of the A2 pile 9, thereby protecting the outer formed fixed net 102 from damage. When the staff takes out the steel casing body 1, they only need to rotate the outer cylinder sleeve 11 to separate the outer cylinder sleeve 11 from the upper connecting ring 101 and the lower connecting ring 104, and the outer formed fixed net 102 remains between the A1 pile 8 and the A2 pile 9 to reinforce the casting degree of the interlocking pile.

[0067] See also Figure 8 The inner lining card seat 4 includes a card seat core plate 41 and a load-bearing insert 48. The upper ends of the left and right sides of the card seat core plate 41 are each provided with a group of upper positioning inserts 42 for interlocking with the upper positioning insert 45 and the inner positioning insert 46;

[0068] The cross-section of the upper positioning head 42 is a right triangle structure, and the two groups of upper positioning heads 42 at the upper end of the card seat core plate 41 are arranged in a mirror manner, and the front cross-section of the two groups of upper positioning heads 42 at the upper end of the card seat core plate 41 is an isosceles trapezoidal structure. Several groups of external embedded rows 43 are provided on the left side of the card seat core plate 41 for interlocking with the inner part of the upper positioning card seat 45.

[0069] See also Figure 8 The lower end of the upper positioning seat 45 is provided with a group of outer positioning teeth for interlocking with the outer row 43. The outer positioning teeth have the same structure as the inner positioning teeth 47. The lower ends of the outer positioning teeth and the inner positioning teeth 47 are both provided with a group of load-bearing seats 48 for interlocking with and supporting the left and right sides of the lower end of the card seat core plate 41. The cross-section of the load-bearing seats 48 is a right-angled trapezoidal structure, and the two groups of load-bearing seats 48 are respectively integrated with the outer positioning seat and the inner positioning seat. By using two groups of load-bearing seats 48, they can be interlocked with and supported on the left and right sides of the lower end of the card seat core plate 41.

[0070] See also Figure 1-Figure 3 as well as Figure 8As the fourth embodiment of the present invention: when the staff is installing the joint pipe holder 2, the pile guide plate 3 and the lining holder 4, since the outer embedding row 43 is provided with several groups of rectangular embedding grooves and rectangular embedding blocks for interlocking with the upper positioning embedding seat 45, a group of inner embedding rows 44 for interlocking with the inner positioning row teeth 47 are provided on the right side of the holder core plate 41. The inner embedding rows 44 have the same specifications as the outer embedding rows 43. The positions of the two groups of upper positioning embedding heads 42 are limited by using the upper positioning embedding seat 45 and the inner positioning embedding seat 46. At the same time, the supporting effect of the holder core plate 41 is maintained by the inner embedding rows 44 and the outer embedding rows 43. At the same time, when the steel casing body 1 is taken out, the staff can quickly take out the joint pipe holder 2, the pile guide plate 3 and the lining holder 4 and clean them, which increases the conditions for reusing parts and reduces the use cost.

[0071] See also Figure 1-Figure 4 The joint pipe holder 2 includes an inner core seat 21 and a positioning strip 24. The inner core seat 21 is arranged in the middle position inside the joint pipe holder 2, and the cross section is a triangular structure when viewed from above. The inner core seat 21 is made of a steel material, and an outer reinforcement layer 22 for improving the support strength of the inner core seat 21 is provided on the outside of the inner core seat 21. The outer reinforcement layer 22 is made of a Q460 steel material.

[0072] The outer side of the outer reinforcement sleeve 22 is provided with a positioning strip 1 23 near the steel casing body 1 for interlocking with the inner sliding groove of the steel casing body 1, and the outer side of the outer reinforcement sleeve 22 is provided with a positioning strip 2 24 near the meat pile guide plate 3 for interlocking with the outer sliding groove of the meat pile guide plate 3. The cross-section of the positioning strip 1 23 and the positioning strip 2 24 is an isosceles trapezoidal structure when viewed from above. Each group of positioning strips 1 23 and positioning strips 2 24 are integrated with a group of outer reinforcement sleeves 22. The position of the joint pipe holder 2 can be determined by using the positioning strips 1 23 and the positioning strips 2 24, and the connection support strength of the joint pipe holder 2 can be improved by using the outer reinforcement sleeve 22.

[0073] See also Figure 1-Figure 4As the fifth embodiment of the present invention: According to the description in the first embodiment, further, when the staff needs to install the joint pipe holder 2 inside the steel casing body 1 in advance, it is only necessary to insert the positioning strip 1 23 on the outside of the joint pipe holder 2 along the four sets of slide grooves inside the inner side of the steel casing body 1 to complete the installation. Then, according to the position of the positioning strip 24, the position of the pile guide plate 3, the lining holder 4 and the lining arc plate 5 are installed. At the same time, since the inner core seat 21 is made of a steel material and the outer surface of the inner core seat 21 is An outer reinforcement sleeve 22 is provided on the side for improving the supporting strength of the inner core seat 21. The outer reinforcement sleeve 22 is made of Q460 steel material. When the steel casing body 1 is inserted between the A1 pile 8 and the A2 pile 9 by a hydraulic full-casing drilling rig, the outer reinforcement sleeve 22 can provide strength support for the positioning strip 1 23 and the positioning strip 2 24 to prevent the internal pressure of the steel casing body 1 from being too high, which may cause the outer side of the inner lining arc plate 5, the inner side of the steel casing body 1 and the joint pipe clamp 2 to loosen.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A snap pile steel casing device with a joint pipe, comprising: A steel casing body (1), a joint pipe holder (2), and an inner lining holder (4), characterized in that: the steel casing body (1) is a cylindrical hollow structure, and two groups of sliding grooves for interlocking and positioning with four groups of inner lining holders (4) are provided at both left and right ends of the inner side of the steel casing body (1); The cross section of the chute is a trapezoidal structure when viewed from above. The steel casing body (1) is provided in a plurality of groups, and the plurality of groups of the steel casing body (1) are assembled and installed in a vertical manner. A group of joint pipe holders (2) for supporting the pile guide plate (3) is provided inside each group of the chute. The cross section of the joint pipe holder (2) is an arc-edged triangular structure. The joint pipe holders (2) are evenly distributed on the front and rear sides of the outer side of the meat pile guide plate (3). A group of lining holders (4) for connecting to the lining arc plate (5) is provided in the middle position of the inner side of the meat pile guide plate (3). A group of inner lining arc plates (5) for preventing internal pipe bursts are provided on the outer side of the inner lining holder (4); the outer side of the inner lining arc plates (5) is fitted with the pile guide plate (3) and fixed by welding; The inner lining holder (4) is connected and fixedly engaged with the inner lining arc plate (5) and the meat pile guide plate (3), and supports the inner lining arc plate (5) and the meat pile guide plate (3). The inner lining holder (4) is a steel material support. The inner lining holder (4) is a segmented structure, the left section of which is an integral structure with the inner side of the meat pile guide plate (3), and the right section of the inner lining holder (4) is an integral structure with the inner side of the inner lining arc plate (5). The steel casing body (1) is supported by two groups of pile guide plates (3) and two groups of inner lining arc plates (5), and each group of pile guide plates (3) and each group of inner lining arc plates (5) are supported and connected at upper and lower sides by a group of inner lining brackets (4). The pile guide plates (3) and the inner lining arc plates (5) are both arc-shaped structures in a top view cross section and are both formed by rolling steel. The steel casing body (1) comprises an outer sleeve (11), an inner core laminate (12), an outer forming fixed net (102) and an outer embedded concave block (109); the inner portion of the outer sleeve (11) is a hollow structure, and the inner portion of the outer sleeve (11) is provided with a plurality of groups of inner core laminates (12) for enhancing the supporting strength of the outer sleeve (11); A group of externally formed fixed nets (102) for maintaining the strength of the pile casting are provided on the outside of the outer sleeve (11); the outer side of the externally formed fixed nets (102) is composed of a steel bar material interlaced and combined; The outer forming fixed net (102) is a columnar structure, and the upper end of the outer forming fixed net (102) is provided with a group of upper connecting rings (101) for screwing together with the upper connecting threads (106), and the lower end of the outer forming fixed net (102) is provided with a group of lower connecting rings (104) for screwing together with the lower connecting threads (105).

2. The occlusal pile steel casing device with a joint pipe according to claim 1, characterized in that: The inner core stack (12) is provided with a plurality of groups, and a group of inner support frames (13) for engaging and positioning with the inner core stack (12) is provided between the plurality of groups, the inner support frame (13) having a decagonal shape with a rounded corner structure when viewed from above, the inner support frame (13) being made of forged steel, and having a plurality of groups of embedding grooves (17) for engaging with the single-piece inner core stack (12) when viewed from the left, the embedding grooves (17) having a rectangular structure when viewed from the left; A group of inner positioning rubber pads (19) for limiting the movement position of the single-piece inner core laminate (12) are provided on the inner walls of the upper and lower sides of the inner groove (17), and a group of upper positioning rubber pads (18) for preventing the inner support frame (13) from being displaced left and right as a whole are provided on the outer sides of the upper and lower ends of the inner support frame (13). Both the upper positioning rubber pads (18) and the inner positioning rubber pads (19) are rubber anti-skid pads with herringbone anti-skid bumps.

3. The occlusal pile steel casing device with a joint pipe according to claim 2, characterized in that: The outer side of the inner core laminate (12) is provided with an outer sleeve connection spiral (14) for mutually rotating with the inner side of the outer sleeve (11), and the inner side of the inner core laminate (12) is provided with an inner sleeve connection spiral (15) for mutually rotating with the outer side of the inner sleeve (16); The outer sleeve spiral (14) and the inner sleeve spiral (15) are both a pipe thread, and the thread angle is set to 55 degrees. When the outer sleeve (11) and the inner sleeve (16) are completely screwed together with the inner core laminate (12), the outer sleeve (11), the inner sleeve (16) and the inner core laminate (12) constitute a group of steel casing bodies (1). The upper end of the outer sleeve (11) is provided with a group of connectors for connecting with multiple steel casing bodies (1). The connector seat comprises an upper connecting thread (106), an inner fixing hole (107), an inner slot (108) and an outer protrusion. The connector seat is provided with two groups, and a group of upper connecting threads (106) for mutually threaded engagement with the upper connecting ring (101) is provided on the outer side of the upper end of the connector seat.

4. The occlusal pile steel casing device with a joint pipe according to claim 3, characterized in that: The outer side of the lower end connector seat is provided with a group of lower connecting threads (105) for mutually threaded engagement with the lower connecting ring (104), and the upper end of the upper end connector seat is provided with a plurality of groups of internal embedded grooves (108) for mutually engaging with the external embedded protrusions at the lower end of other steel casing bodies (1); The outer side of the embedded card slot (108) is provided with a plurality of groups of external embedded protrusions for interlocking with the embedded card slot (108) at the lower end of the other steel casing body (1), the external embedded protrusions having a trapezoidal structure in front view, and the internal cross-sectional shape of the embedded card slot (108) is consistent with the cross-sectional shape of the external embedded protrusions; The connector seat is provided with a plurality of groups of internal fixing holes (107) for reinforcing the vertical splicing installation of a plurality of steel casing bodies (1), and each two groups of internal fixing holes (107) inside the steel casing bodies (1) are connected by a plurality of groups of bolts passing through and fixed to each other.

5. The occlusal pile steel casing device with a joint pipe according to claim 3, characterized in that: The upper connecting ring (101) and the lower connecting ring (104) are both welded and fixed to the outer forming fixed net (102). The upper connecting ring (101) and the lower connecting ring (104) are both formed by rolling a steel material. The cross-sectional diameter length of the outer forming fixed net (102) when viewed from above is consistent with the cross-sectional diameter length of the inner side of the outer sleeve (11). When the steel casing body (1) is removed, the outer sleeve (11) can be separated from the upper connecting ring (101) and the lower connecting ring (104) by simply rotating the outer sleeve (11). At the same time, the outer forming fixed net (102) remains between the A1 pile (8) and the A2 pile (9) to reinforce the casting degree of the interlocking pile. The outer forming fixed net (102) is arranged on the outside of the outer sleeve (11) and has the same cross-sectional diameter length as the A1 pile (8) and the A2 pile (9).

6. The occlusal pile steel casing device with a joint pipe according to claim 1, characterized in that: The inner lining card seat (4) comprises a card seat core plate (41) and a load-bearing insert seat (48), and the upper ends of the left and right sides of the card seat core plate (41) are each provided with a set of upper positioning insert heads (42) for interlocking with the upper positioning insert seat (45) and the inner positioning insert seat; The cross section of the upper positioning insert (42) is a right-angled triangle structure, and the two groups of upper positioning inserts (42) on the upper end of the card seat core plate (41) are arranged in a mirror image manner, and the front cross section of the two groups of upper positioning inserts (42) on the upper end of the card seat core plate (41) is an isosceles trapezoidal structure, and the left side of the card seat core plate (41) is provided with a plurality of groups of outer inserts (43) for interlocking with the inner part of the upper positioning insert (45); The outer embedded row (43) is provided with a plurality of rectangular embedded grooves and rectangular embedded blocks for interlocking with the inner portion of the upper positioning embedded seat (45). The right side of the card seat core plate (41) is provided with a group of inner embedded rows (44) for interlocking with the inner positioning row teeth (47). The inner embedded rows (44) have the same specifications as the outer embedded rows (43).

7. The interlocking pile steel casing device with a joint pipe according to claim 6, characterized in that: The lower end of the upper positioning insert (45) is provided with a group of outer positioning teeth for interlocking with the outer insert (43), and the outer positioning teeth have the same structure as the inner positioning teeth (47). The lower ends of the outer positioning teeth and the inner positioning teeth (47) are both provided with a group of load-bearing inserts (48) for interlocking with and supporting the left and right sides of the lower end of the card seat core plate (41). The cross section of the load-bearing insert (48) is a right-angled trapezoidal structure, and the two groups of the load-bearing inserts (48) are respectively integrated with the outer positioning insert and the inner positioning insert.

8. The interlocking pile steel casing device with a joint pipe according to claim 1, characterized in that: The joint pipe clamp (2) comprises an inner core seat (21), a first positioning strip (23) and a second positioning strip (24); the inner core seat (21) is arranged in the middle of the joint pipe clamp (2) and has a triangular structure in a top view; the inner core seat (21) is made of a steel material, and an outer reinforcement layer (22) for improving the support strength of the inner core seat (21) is provided on the outer side of the inner core seat (21); the outer reinforcement layer (22) is made of a Q460 steel material; The outer side of the outer reinforcement sleeve (22) is provided with a positioning strip 1 (23) on the side close to the steel casing body (1) for interlocking with the inner sliding groove of the steel casing body (1), and the outer side of the outer reinforcement sleeve (22) is provided with a positioning strip 2 (24) on the side close to the meat pile guide plate (3) for interlocking with the outer sliding groove of the meat pile guide plate (3). The cross-sections of the positioning strip 1 (23) and the positioning strip 2 (24) when viewed from above are both isosceles trapezoidal structures, and each group of the positioning strip 1 (23) and the positioning strip 2 (24) are integrated with a group of outer reinforcement sleeves (22) as a whole.

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