A quick connecting joint device for grouting pipe of a cast-in-place pile

Abstract

The utility model relates to quick -witted joint device field discloses a kind of quick joint device of grouting pipe for cast-in-place pile, including circular tube, the sliding sleeve of circular tube outer wall is connected, the spring of circular tube outer wall is provided, the spring is fixedly connected in circular tube outer wall, the other end of the spring is fixedly connected with sliding sleeve inner wall, the limit ring of circular tube outer wall is fixedly connected, the butt joint pipe sleeve of circular tube inner wall is connected, the ball bearing of circular tube inner wall is connected, the gear ring of the butt joint pipe sleeve outer wall is fixedly connected, the sliding sleeve inner wall is connected in sliding sleeve inner wall, the sliding sleeve inner wall is connected with gear ring thread.The utility model in, when the butt joint cannot be carried out to sudden situation such as ball bearing drop or other, only need to extend butt joint pipe sleeve to spare recess and be fixed by the thread connection of gear ring and sliding sleeve tightening, reduce construction interruption time, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of quick-connect joint devices, and in particular to a quick-connect joint device for grouting pipes in cast-in-place piles. Background Technology

[0002] In the field of cast-in-place pile construction, the grouting pipe connection joint is a core auxiliary component that enables the rapid connection between the grouting pipe and the cast-in-place pile pipe and ensures smooth grout injection. The existing grouting pipe connection joints for cast-in-place piles are mostly conventional structures such as flange joints, threaded joints or snap-fit ​​joints. They are mainly composed of the docking body, sealing elements, locking elements such as bolts, nuts, and snaps, and are indispensable connecting components in the grouting construction of cast-in-place piles.

[0003] When connecting the grouting pipe for cast-in-place piles, the grouting pipe and one end of the connector must be aligned first. If it is a flange connector, the bolt holes on the flange must be precisely aligned manually, and then the bolts are inserted one by one and the nuts are tightened one by one to complete the fixation. If it is a threaded connector, the worker must hold the grouting pipe and the connector with both hands respectively, and rotate the grouting pipe to gradually engage the threads until it is tightened without any looseness. Some structures also require additional sealing gaskets to ensure the sealing of the connection. Only after all operations are completed can the mud grouting operation be carried out.

[0004] The existing grouting pipe connection joints for cast-in-place piles have room for improvement in actual use. The connection operation requires high precision. Whether it is bolt alignment, thread engagement or snap-fit, it requires careful operation by the staff, which leads to long docking time and affects construction efficiency. When the core locking component is worn or mismatched, the entire joint needs to be disassembled and replaced, which increases maintenance costs and construction interruption time, and makes it difficult to flexibly deal with unexpected situations on site. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick connection joint device for grouting pipes of cast-in-place piles, which aims to improve the problem in the prior art that when the core locking component is worn or misfitted, the entire joint needs to be disassembled and replaced, which increases maintenance costs and construction interruption time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick connection joint device for grouting pipes of cast-in-place piles, comprising a circular pipe, a sliding sleeve slidably connected to the outer wall of the circular pipe, a spring provided on the outer wall of the circular pipe, the spring being fixedly connected to the outer wall of the circular pipe, the other end of the spring being fixedly connected to the inner wall of the sliding sleeve, a limit ring being fixedly connected to the outer wall of the circular pipe, a connecting sleeve slidably connected to the inner wall of the circular pipe, and ball bearings slidably connected to the inner wall of the circular pipe.

[0007] As a further description of the above technical solution: a gear ring is fixedly connected to the outer wall of the connecting sleeve, the outer wall of the connecting sleeve is slidably connected to the inner wall of the sliding sleeve, the inner wall of the sliding sleeve is threadedly connected to the gear ring, and the inner wall of the sliding sleeve is slidably connected to the ball bearing.

[0008] As a further description of the above technical solution: the ball bearing is slidably connected to the connecting pipe sleeve, a grouting pipe is fixedly connected to the outer wall of the right end of the connecting pipe sleeve, and a grouting pile pipe is fixedly connected to the outer wall of the left end of the round pipe.

[0009] As a further description of the above technical solution: the inner wall of the round tube is provided with a circular groove, the outer wall of the ball is slidably connected to the inner wall of the circular groove, the outer wall of the connecting tube sleeve is provided with a groove, and the groove is adapted to the ball.

[0010] As a further description of the above technical solution: the outer wall of the connecting sleeve is provided with a groove, and the inner wall of the groove is adapted to the ball bearing.

[0011] As a further description of the above technical solution: the inner wall of the sliding sleeve is provided with a convex shape, and the convex shape contacts the limiting ring.

[0012] As a further description of the above technical solution: the inner wall of the sliding sleeve is slidably connected to the outer wall of the limiting ring, and the inner wall of the right side of the sliding sleeve is provided with threads.

[0013] This utility model has the following beneficial effects: 1. In this utility model, when the ball bearings fall out or other unforeseen circumstances prevent docking, it is only necessary to extend the connecting sleeve to the spare groove and tighten it by threading the gear ring and the sliding sleeve to complete the fixation, reducing construction interruption time and maintenance costs. 2. In this utility model, the automatic locking and engaging ball bearing structure eliminates the need to tighten bolts one by one, avoiding cumbersome procedures, significantly shortening connection time, greatly improving construction progress, reducing labor costs, and enhancing grouting efficiency. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of a quick-connect joint device for grouting pipes in cast-in-place piles proposed in this utility model; Figure 2 This is a cross-sectional schematic diagram of a quick-connect joint device for grouting pipes in cast-in-place piles proposed in this utility model; Figure 3 This is a schematic diagram of the fixed docking structure of a quick-connect joint device for grouting pipes in cast-in-place piles proposed in this utility model; Figure 4 This is a schematic diagram showing the position of the spring-loaded device in a quick-connect joint device for grouting pipes of cast-in-place piles proposed in this utility model. Figure 5This is a schematic diagram showing the position of the ball bearings in a quick-connect joint device for grouting pipes in cast-in-place piles, as proposed in this utility model.

[0015] Legend: 1. Cast-in-place pile pipe; 2. Circular pipe; 3. Sliding sleeve; 4. Connecting pipe sleeve; 5. Grouting pipe; 6. Spring; 7. Limiting ring; 8. Ball bearing; 9. Gear ring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-3 This utility model provides an embodiment of a quick-connect coupling device for grouting pipes in cast-in-place piles, comprising a circular pipe 2, a circular rod 2 providing an installation position for the cast-in-place pile pipe 1, a sliding sleeve 3 slidably connected to the outer wall of the circular pipe 2, the sliding sleeve 3 allowing the ball bearing 8 to be fixed and loosened for disassembly, a spring 6 provided on the outer wall of the circular pipe 2, the spring 6 providing the sliding sleeve 3 with a rebound driving force to achieve automatic reset of the sliding sleeve 3 and press against the ball bearing 8, the spring 6 being fixedly connected to the outer wall of the circular pipe 2, the other end of the spring 6 being fixedly connected to the inner wall of the sliding sleeve 3, a limit ring 7 fixedly connected to the outer wall of the circular pipe 2, the limit ring 7 limiting the rebound displacement of the sliding sleeve 3 to prevent the sliding sleeve 3 from detaching from the circular pipe 2, and a connecting pipe sleeve 4 slidably connected to the inner wall of the circular pipe 2, the connecting pipe sleeve 4 being used for... The grouting pipe 5 connects to the round pipe 2, providing a slurry flow channel. The inner wall of the round pipe 2 is slidably connected with a ball bearing 8. The ball bearing 8 is initially positioned by being inserted into the groove of the connecting sleeve 4 and then fixed with the sliding sleeve 3. The outer wall of the connecting sleeve 4 is fixedly connected with a gear ring 9. The gear ring 9 is threadedly matched with the inner wall of the sliding sleeve 3 and is used to fix the connecting sleeve 4 in case of emergencies. The outer wall of the connecting sleeve 4 is slidably connected to the inner wall of the sliding sleeve 3. The inner wall of the sliding sleeve 3 is threadedly connected to the gear ring 9. The threaded connection can replace the ball bearing 8 fixing method to deal with the problem of the ball bearing 8 falling off or not fitting. The inner wall of the sliding sleeve 3 is slidably connected to the ball bearing 8. The protruding part of the inner wall of the sliding sleeve 3 presses against the ball bearing 8 to enhance the fit and fixing effect between the ball bearing 8 and the groove of the connecting sleeve 4.

[0018] Reference Figures 3-5The ball bearing 8 is slidably connected to the connecting sleeve 4. The ball bearing 8 can be inserted into multiple grooves in the connecting sleeve 4. A grouting pipe 5 is fixedly connected to the outer wall of the right end of the connecting sleeve 4. The grouting pipe 5 is used to transport the grouting slurry, which is introduced into the circular pipe 2 through the connecting sleeve 4. A grouting pile pipe 1 is fixedly connected to the outer wall of the left end of the circular pipe 2. The grouting pile pipe 1 is the final channel for slurry injection. It connects with the circular pipe 2 to realize the injection of slurry into the grouting pile. A circular groove is opened on the inner wall of the circular pipe 2. The circular groove provides sliding space for the ball bearing 8. The circular groove is obliquely convex to prevent the ball bearing 8 from falling onto the inner wall of the circular pipe. The outer wall of the ball bearing 8 is slidably connected to the inner wall of the circular groove. A groove is opened on the outer wall of the connecting sleeve 4. The groove is adapted to the ball bearing 8. The groove of the connecting sleeve 4 is used for... The connecting sleeve 4 and the round tube 2 are positioned by the engaging ball bearing 8. The outer wall of the connecting sleeve 4 has a groove, and the inner wall of the groove is adapted to the ball bearing 8. Multiple grooves of the connecting sleeve 4 are adapted to different fixing requirements of the ball bearing 8 to deal with the problem of the ball bearing 8 falling off or being mismatched in size. The inner wall of the sliding sleeve 3 is provided with a convex shape, which abuts against the ball bearing 8 and enhances the fixing strength between the ball bearing 8 and the groove of the connecting sleeve 4. The convex shape contacts the limiting ring 7, and the convex structure cooperates with the limiting ring 7 to limit the excessive displacement of the sliding sleeve 3. The inner wall of the sliding sleeve 3 is slidably connected to the outer wall of the limiting ring 7. The inner wall of the right side of the sliding sleeve 3 is provided with a thread, which is adapted to the gear ring 9. It is used to fix the connecting sleeve 4 by thread in case of emergency, replacing the fixing method of the ball bearing 8.

[0019] Working principle: The operator manually connects the left end of the round pipe 2 to the grouting pile pipe 1, and then connects the connecting sleeve 4 to the grouting pipe 5. By manually holding the sliding sleeve 3 and sliding it to the left, the connecting sleeve 4 is inserted into the round pipe 2. When it is locked in the corresponding position, the ball bearing 8 will fall into the circular groove of the connecting sleeve 4. At this time, the sliding sleeve 3 is released, and the sliding sleeve 3 will rebound due to the elasticity of the spring 6. The protrusion on the inner wall of the sliding sleeve 3 will press against the ball bearing 8, making the ball bearing 8 tightly adhere to the inner wall of the circular groove for fixation. The limiting ring 7 prevents the sliding sleeve 3 from shifting. After the connection is completed, the required mud can be injected. When the injection is completed, simply slide the sliding sleeve 3 to the left again, and the operator can then remove the connecting sleeve 4.

[0020] If prolonged use causes the ball bearing 8 to fall off, or if the ball bearing 8 is too small and does not fit the circular groove on the inner wall of the connecting sleeve 4, simply extend the connecting sleeve 4 into the inner wall of the circular tube 2 during docking, causing the ball bearing 8 to fall into the inner wall of another groove. At this time, simply hold the connecting sleeve 4 and rotate it to connect it through the threads on the inner wall of the gear ring 9 and the sliding sleeve 3. After tightening the connecting sleeve 4 and the sliding sleeve 3, docking can also be performed, adapting to different emergencies.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect coupling device for grouting pipes in cast-in-place piles, comprising a circular pipe (2), characterized in that: A sliding sleeve (3) is slidably connected to the outer wall of the circular tube (2). A spring (6) is provided on the outer wall of the circular tube (2). The spring (6) is fixedly connected to the outer wall of the circular tube (2). The other end of the spring (6) is fixedly connected to the inner wall of the sliding sleeve (3). A limit ring (7) is fixedly connected to the outer wall of the circular tube (2). A connecting sleeve (4) is slidably connected to the inner wall of the circular tube (2). A ball bearing (8) is slidably connected to the inner wall of the circular tube (2). The inner wall of the sliding sleeve (3) is slidably connected to the outer wall of the limit ring (7). (3) The inner wall on the right side is provided with threads; the inner wall of the round tube (2) is provided with a circular groove, the outer wall of the ball (8) is slidably connected to the inner wall of the circular groove, the outer wall of the connecting sleeve (4) is provided with a groove, the inner wall of the groove is adapted to the ball (8), the outer wall of the connecting sleeve (4) is fixedly connected with a gear ring (9), the outer wall of the connecting sleeve (4) is slidably connected to the inner wall of the sliding sleeve (3), the inner wall of the sliding sleeve (3) is threadedly connected to the gear ring (9), and the inner wall of the sliding sleeve (3) is slidably connected to the ball (8).

2. The quick-connect joint device for grouting pipes of cast-in-place piles according to claim 1, characterized in that: The ball bearing (8) is slidably connected to the connecting sleeve (4), and the outer wall of the right end of the connecting sleeve (4) is fixedly connected to the grouting pipe (5), and the outer wall of the left end of the round pipe (2) is fixedly connected to the grouting pile pipe (1).

3. The quick-connect joint device for grouting pipes of cast-in-place piles according to claim 1, characterized in that: The inner wall of the sliding sleeve (3) is provided with a convex shape, which contacts the limiting ring (7).

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