Cast-in-place pile reinforcement cage longitudinal bar right-hand and left-hand thread mechanical connection straight thread sleeve

Abstract

The utility model relates to the technical field of cast-in-place pile reinforcement cage installation, and discloses a cast-in-place pile reinforcement cage longitudinal bar forward and reverse thread mechanical connection straight thread sleeve which comprises a limiting ring sleeve, a plurality of top steel bars and a fixing sleeve. A steel bar net is fixedly connected to the top end of the interior of the limiting ring sleeve, and a first supporting steel frame is fixedly connected to the top end of the limiting ring sleeve; a second supporting steel frame is fixedly connected to the top end of the limiting ring sleeve, a steel bar ring is fixedly connected to the top end of the second supporting steel frame, a first threaded steel net is fixedly connected to the interior of the limiting ring sleeve, a plurality of bottom steel bars are arranged in the limiting ring sleeve, and first threaded joints are fixedly connected to the top ends of the bottom steel bars. The bottom ends of the top reinforcing steel bars are fixedly connected with second threaded joints, and the exteriors of several top reinforcing steel bars are fixedly connected with second threaded steel nets. According to the utility model, the whole quick connection of the multiple sections of top steel bars and bottom steel bars of the installed cast-in-place pile is realized, the connection operation method is quick, simple and convenient, and the operation process is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place pile reinforcement cage installation, in particular to a straight thread sleeve for mechanically connecting the forward and reverse wires of the longitudinal reinforcement of the cast-in-place pile reinforcement cage. Background Art

[0002] When mechanical bored cast-in-place piles are used in pile foundation projects, the pile length is generally 30 to 40 meters, and some even exceed 40 meters. This requires the processing of cast-in-place pile reinforcement cages exceeding 30 meters or even 40 meters. Due to the length of the longitudinal reinforcement material of the reinforcement cage and the limitations of the processing site, the cast-in-place pile reinforcement cage needs to be processed in sections and then connected and assembled into a whole. The standard length of a single section of the reinforcement cage is 12 meters, so each cast-in-place pile reinforcement cage generally has 3 to 4 sections, requiring 2 to 3 reinforcement cage connection constructions. The longitudinal reinforcement connection method of the cast-in-place pile reinforcement cage is mainly welding. Welding connection has many disadvantages. The welding connection processing time is long, and the connection quality is difficult to guarantee. The welding process will generate dust, noise, and light pollution, which is not in line with the concept of green construction. Therefore, in order to address the above problems, a straight threaded sleeve for mechanical connection of the longitudinal reinforcement of the cast-in-place pile reinforcement cage is proposed to solve the above problems. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a straight thread sleeve for mechanically connecting the forward and reverse wires of the longitudinal reinforcement of the cast-in-place pile reinforcement cage, aiming to improve the problems of long processing time and inconsistent connection quality in the traditional welding installation technology in the prior art.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A straight threaded sleeve for mechanical connection of longitudinal reinforcement of a cast-in-place pile reinforcement cage, comprising a limiting ring sleeve, a plurality of top reinforcement bars and a fixing sleeve, the inner top end of the limiting ring sleeve is fixedly connected to a reinforcement mesh, the top end of the limiting ring sleeve is fixedly connected to a supporting steel frame 1, the top end of the limiting ring sleeve is fixedly connected to a supporting steel frame 2, the top end of the supporting steel frame 2 is fixedly connected to a reinforcement ring, the inner part of the limiting ring sleeve is fixedly connected to a threaded steel mesh 1, a plurality of bottom reinforcement bars are arranged inside the limiting ring sleeve, the top end of the bottom reinforcement bar is fixedly connected to a threaded section 1, the bottom end of the top reinforcement bar is fixedly connected to a threaded section 2, wherein the outer parts of several top reinforcement bars are fixedly connected to a threaded steel mesh 2, the inner top end of the fixing sleeve is provided with a lower thread, the inner top end of the fixing sleeve is provided with an upper thread, the upper and lower sides of the fixing sleeve are provided with oil filling holes, and a limiting component is provided inside the oil filling hole;

[0006] As a further description of the above technical solution:

[0007] The limiting assembly includes a bracket, the outer portion of the bracket is fixedly connected to the middle of the inner wall of the oil filling hole, and the side of the bracket close to the lower thread is fixedly connected to the telescopic rod;

[0008] As a further description of the above technical solution:

[0009] The outer sleeve of the upper thread is provided with a strong spring, the side of the strong spring away from the bracket is fixedly connected to the blocking ball, the inside of the oil filling hole is fixedly connected to the hole ring, the side of the hole ring close to the blocking ball is fixedly connected to the sealing ring, and the upper and lower sides of the fixed sleeve are provided with friction threads;

[0010] As a further description of the above technical solution:

[0011] The left and right sides of the top of the steel bar ring are fixedly connected to the left and right sides of the top of the supporting steel frame 1, wherein the outsides of several bottom steel bars are fixedly connected to the outside of the threaded steel mesh 1;

[0012] As a further description of the above technical solution:

[0013] The inner top end of the fixing sleeve is threadedly connected to the outer portion of the second threaded section, and the inner bottom end of the fixing sleeve is threadedly connected to the outer portion of the first threaded section;

[0014] As a further description of the above technical solution:

[0015] One end of the strong spring is fixedly connected to the side of the bracket close to the telescopic rod, and the other end of the strong spring is fixedly connected to the side of the blocking ball close to the bracket;

[0016] As a further description of the above technical solution:

[0017] The exterior of the fixed sleeve is made of zinc silicate paint;

[0018] As a further description of the above technical solution:

[0019] The outer portion of the blocking ball is engaged with the middle portion of the hole ring, and the outer portion of the blocking ball is engaged with the inner wall of the sealing ring.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, the installed limiting ring is fixed to the construction ground, and then the bottom steel bar is hoisted into the installed limiting ring, and then the top steel bar and the bottom steel bar are aligned horizontally. The lower thread and the upper thread in the fixed sleeve are screwed one or two times in a cycle until the top steel bar and the bottom steel bar are fixed, thereby realizing the quick connection of the installed cast-in-place pile with multiple sections of top steel bars and bottom steel bars. The connection operation method is fast and simple, and the connection is reliable. It solves the difficulty of the steel cage being unable to be processed as a whole due to the limitation of the processing site, and the problem of too many exposed threads in the traditional mechanical connection joint. Through this installation method, the dust, noise and light pollution caused by the welding connection construction are avoided, which is green and environmentally friendly.

[0022] 2. In the utility model, an external oiler is inserted into the oil filling hole, and the lubricating oil is allowed to punch the hole of the hole ring on the plugging ball through the hole network of the bracket, so that the lubricating oil can enter the inner side of the fixed sleeve and lubricate the connection of the fixed sleeve along the lower thread and the upper thread. In conjunction with a strong spring, the plugging ball can be driven to reset, so that the operator can directly inject lubricating oil or hydraulic oil into the threaded sleeve through the oil filling hole without disassembling the entire device, thereby simplifying the operation process and preventing oil leakage after oil filling by resetting the plugging ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a straight thread sleeve for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with positive and negative wires proposed by the utility model;

[0024] Figure 2 This is a structural diagram of a straight thread sleeve threaded section 1 for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with positive and negative wires proposed by the utility model;

[0025] Figure 3 This is a structural diagram of the second threaded section of a straight thread sleeve for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with positive and negative wires proposed by the utility model;

[0026] Figure 4 This is a structural diagram of a cast-in-place pile reinforcement cage longitudinal reinforcement with positive and negative wires mechanically connected to a straight thread sleeve reinforcement mesh proposed by the utility model;

[0027] Figure 5 This is a structural diagram of a straight thread sleeve lower thread for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with positive and negative wires proposed by the utility model;

[0028] Figure 6 This is an enlarged view of point A in Figure 1.

[0029] Legend:

[0030] 1. Limiting ring; 2. Steel mesh; 3. Support steel frame 1; 4. Support steel frame 2; 5. Steel ring; 6. Threaded steel mesh 1; 7. Bottom steel bar; 8. Threaded section 1; 9. Top steel bar; 10. Threaded section 2; 11. Threaded steel mesh 2; 12. Fixed sleeve; 13. Lower thread; 14. Upper thread; 15. Oil filling hole; 16. Bracket; 17. Telescopic rod; 18. Power spring; 19. Ball plug; 20. Hole ring; 21. Sealing ring; 22. Friction thread. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1 to 3 The present invention provides an embodiment of a straight threaded sleeve for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with forward and reverse wires, comprising a limiting ring 1, a plurality of top reinforcements 9, and a fixed sleeve 12. The top end of the limiting ring 1 is fixedly connected to a reinforcement mesh 2, which increases the strength of the outer shell of the limiting ring 1. The top end of the limiting ring 1 is fixedly connected to a support steel frame 1 3, the top end of the limiting ring 1 is fixedly connected to a support steel frame 2 4, the top end of the support steel frame 2 4 is fixedly connected to a reinforcement ring 5, and the support steel frames 1 3 and 2 4 are cross-connected.

[0033] refer to Figure 4 、 Figure 5 The left and right sides of the top of the steel bar ring 5 are fixedly connected to the left and right sides of the top of the supporting steel frame 3. The interior of the limiting ring sleeve 1 is fixedly connected with a threaded steel mesh 6. A plurality of bottom steel bars 7 are arranged inside the limiting ring sleeve 1, wherein the outsides of several bottom steel bars 7 are fixedly connected to the outside of the threaded steel mesh 6. The top of the bottom steel bar 7 is fixedly connected with a threaded section 8, and the bottom steel bar 7 can be connected to the top steel bar 9 through the threaded section 8.

[0034] The bottom end of the top rebar 9 is fixedly connected to a threaded section 2 10. Several of the top rebars 9 are also fixedly connected to a threaded steel mesh 2 11 on their exteriors. This is to limit the fixing range of the top rebar 9 and enhance its strength. The exterior of the fixing sleeve 12 is coated with zinc silicate paint. The top end of the fixing sleeve 12 is threadedly connected to the exterior of the threaded section 2 10, and the bottom end of the fixing sleeve 12 is threadedly connected to the exterior of the threaded section 1 8. The exterior of the fixing sleeve 12 is coated with zinc silicate paint to prevent corrosion. The top end of the fixing sleeve 12 is threadedly connected to the threaded section 2 10, and the bottom end is threadedly connected to the threaded section 1 8. Seven top rebars 9 are connected to the bottom rebar.

[0035] refer to Figure 5 、 Figure 6 The inner top of the fixed sleeve 12 is provided with a lower thread 13, and the inner top of the fixed sleeve 12 is provided with an upper thread 14. The upper thread 13 and the lower thread 14 are opposite threads. The upper and lower sides of the fixed sleeve 12 are provided with oil filling holes 15. The inner part of the oil filling hole 15 is provided with a limit assembly. The limit assembly includes a bracket 16. The outer part of the bracket 16 is fixedly connected to the middle of the inner wall of the oil filling hole 15. The side of the bracket 16 close to the lower thread 13 is fixedly connected to the telescopic rod 17. The oil filling hole 15 is used to inject lubricating oil. The inner part is provided with a limit assembly, including the bracket 16 and the telescopic rod 17, to provide stable support and lubrication functions.

[0036] A strong spring 18 is sheathed around the outer portion of the upper thread 14. A blocking ball 19 is fixedly attached to the side of the strong spring 18 away from the bracket 16. One end of the strong spring 18 is fixedly attached to the side of the bracket 16 near the telescopic rod 17, and the other end of the strong spring 18 is fixedly attached to the side of the blocking ball 19 near the bracket 16. An annular ring 20 is fixedly attached to the inside of the oil filling hole 15. The outer diameter of the blocking ball 19 is larger than the hole of the annular ring 20, and the outer portion of the blocking ball 19 engages with the middle portion of the annular ring 20. The strong spring 18 is used to keep the blocking ball 19 in place, and the blocking ball serves to seal the oil filling hole 15 to prevent lubricant leakage.

[0037] The exterior of the ball plug 19 engages with the inner wall of the sealing ring 21. The side of the grommet 20 closest to the ball plug 19 is fixedly connected to the sealing ring 21. Together, these grommet 20 and sealing ring 21 prevent backflow of lubricating oil after filling, maintaining lubrication. Friction threads 22 are defined on the top and bottom of the fixed sleeve 12, extending beyond the oil filling port 15. These friction threads 22 increase friction in the connection, further stabilizing the external lubricator.

[0038] Working principle: First, install the welded limiting ring 1 deep into the construction ground (the top edge of the installed limiting ring is welded with a fixed support steel frame 3, steel ring 5, and support steel frame 2). Then, fix multiple bottom steel bars 7 and the bottom steel bar 7 fixing threaded steel mesh 6 and steel mesh 2 deep into the inner wall of the limiting ring 1. Then, align the threaded section 2 10 at the bottom end of the top steel bar 9 with the threaded section 1 8 of the bottom steel bar 7 in turn, and cooperate with the fixing sleeve 12 to preliminarily fix the top steel bar 9 and the bottom steel bar 7. At this time, hold the top steel bar 9 with one hand and the fixing sleeve 12 with the other hand. The sleeve 12 is rotated in the same square as the top steel bar 9 and the fixed sleeve 12 on the upper and lower sides in sequence, so that the lower thread 13 and the upper thread 14 in the fixed sleeve 12 are screwed in two to three threads to initially fix the top steel bar 9 and the bottom steel bar 7, and then it is rotated step by step for multiple times, three to two threads each time, until the top steel bar 9 and the thread section 2 10 and the thread section 1 8 of the bottom steel bar 7 coincide with each other, and finally the copper drum wrench is used to tighten the fixed sleeve 12, thereby realizing a quick connection without the need for traditional welding, solving the problem that the steel cage cannot be processed as a whole due to the limitation of the processing site.

[0039] During the process of rotating the fixed sleeve 12 or when it needs to be disassembled later, the user can insert an external oiler through the oil filling hole 15, allowing the lubricating oil to pass through the hole mesh of the bracket 16 to punch open the hole of the hole ring 20 on the blocking ball 19, so that the lubricating oil can enter the inner side of the barrel fixed sleeve 12 and lubricate the connection of the fixed sleeve 12 along the lower thread 13 and the upper thread 14, making it easier to disassemble the fixed sleeve 12 and reduce the wear on the inner side of the fixed sleeve 12.

[0040] When the oil filling is completed, the oil injector leaves the oil filling hole 15. At this time, the elastic potential energy of the strong spring 18 and the telescopic rod 17 will pull the blocking ball 19 back to overlap with the hole of the hole ring 20, thereby effectively preventing the leakage and backflow of the lubricating oil.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, 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 straight threaded sleeve for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with positive and negative wires, comprising a limiting ring (1), a plurality of top reinforcements (9) and a fixing sleeve (12), characterized in that: The top of the inner part of the limiting ring (1) is fixedly connected to a steel mesh (2), the top of the limiting ring (1) is fixedly connected to a supporting steel frame 1 (3), the top of the limiting ring (1) is fixedly connected to a supporting steel frame 2 (4), the top of the supporting steel frame 2 (4) is fixedly connected to a steel ring (5), the inner part of the limiting ring (1) is fixedly connected to a threaded steel mesh 1 (6), a plurality of bottom steel bars (7) are arranged inside the limiting ring (1), the top of the bottom steel bars (7) is fixedly connected to a threaded section 1 (8), the bottom end of the top steel bar (9) is fixedly connected to a threaded section 2 (10), and the outsides of several top steel bars (9) are fixedly connected to a threaded steel mesh 2 (11), the inner top of the fixing sleeve (12) is provided with a lower thread (13), the inner top of the fixing sleeve (12) is provided with an upper thread (14), the upper and lower sides of the fixing sleeve (12) are provided with oil injection holes (15), and the inner part of the oil injection hole (15) is provided with a limiting component.

2. A straight thread sleeve for mechanically connecting the longitudinal reinforcement of a cast-in-place pile reinforcement cage with positive and negative wires according to claim 1, characterized in that: The limiting assembly comprises a bracket (16), the exterior of the bracket (16) being fixedly connected to the middle of the inner wall of the oil filling hole (15), and the side of the bracket (16) close to the lower thread (13) being fixedly connected to the telescopic rod (17).

3. The straight thread sleeve for mechanically connecting the longitudinal reinforcement of the cast-in-place pile reinforcement cage with the positive and negative wires according to claim 1 is characterized by: The outer sleeve of the upper thread (14) is provided with a strong spring (18), and the side of the strong spring (18) away from the bracket (16) is fixedly connected to a blocking ball (19), the inside of the oil filling hole (15) is fixedly connected to a hole ring (20), and the side of the hole ring (20) close to the blocking ball (19) is fixedly connected to a sealing ring (21), and the upper and lower sides of the fixed sleeve (12) are provided with friction threads (22).

4. The straight thread sleeve for mechanically connecting the longitudinal reinforcement of the cast-in-place pile reinforcement cage with the positive and negative wires according to claim 1 is characterized by: The left and right sides of the top of the steel ring (5) are fixedly connected to the left and right sides of the top of the supporting steel frame (3), and the outsides of several bottom steel bars (7) are fixedly connected to the outside of the threaded steel mesh (6).

5. The straight thread sleeve for mechanically connecting the longitudinal reinforcement of the cast-in-place pile reinforcement cage with the positive and negative wires according to claim 1, characterized in that: The inner top end of the fixed sleeve (12) is threadedly connected to the outer portion of the second threaded section (10), and the inner bottom end of the fixed sleeve (12) is threadedly connected to the outer portion of the first threaded section (8).

6. The straight thread sleeve for mechanically connecting the longitudinal reinforcement of the cast-in-place pile reinforcement cage with the positive and negative wires according to claim 3, characterized in that: One end of the strong spring (18) is fixedly connected to a side of the bracket (16) close to the telescopic rod (17), and the other end of the strong spring (18) is fixedly connected to a side of the blocking ball (19) close to the bracket (16).

7. The straight thread sleeve for mechanically connecting the longitudinal reinforcement of the cast-in-place pile reinforcement cage with the positive and negative wires according to claim 1, characterized in that: The exterior of the fixed sleeve (12) is made of zinc silicate paint.

8. The straight thread sleeve for mechanically connecting the longitudinal reinforcement of the cast-in-place pile reinforcement cage with the positive and negative wires according to claim 3, characterized in that: The outside of the blocking ball (19) is engaged with the middle of the hole ring (20), and the outside of the blocking ball (19) is engaged with the inner wall of the sealing ring (21).

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