Quick connector for pipe pile connection

Abstract

The utility model relates to the field of tubular pile connection, in particular to a quick connector for tubular pile connection, which comprises a lower embedded part and an upper embedded part. When the first pipe pile and the second pipe pile are connected, the connecting column fixed to the first pipe pile is aligned and inserted between the two clamping plates fixed to the portion between the two clamping plates in the pre-buried box of the second pipe pile, in the process, the two clamping plates are stressed to move back to back, the spring is compressed till the first pipe pile and the second pipe pile are attached, and the connecting column abuts against the inner bottom face of the pre-buried box; at the moment, the two clamping plates are reset under the action of elastic restoring force of the springs, the two clamping plates are pressed on the outer sides of the connecting columns, the clamping teeth are clamped into the clamping grooves, the connecting columns and the clamping plates are difficult to directly pull open and separate in the using process, and therefore clamping connection of the lower embedded part and the upper embedded part is achieved. The first pipe pile and the second pipe pile can be rapidly and stably connected through the lower embedded part and the upper embedded part which are connected in a clamped mode, and compared with a welding mode, construction efficiency can be improved, and cost and time are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe pile connection, especially point to a quick coupling for pipe pile connection. BACKGROUND

[0002] Prestressed concrete pipe pile is widely used due to high single pile bearing capacity, fast construction speed, suitable price and many other advantages, and currently most projects adopt traditional manual welding in pipe pile joint processing, and after the weld is naturally cooled, pile driving or pile pressing can be continued. However, manual welding has problems of long welding time, unable to guarantee welding strength and easy to affect pipe pile connection stability. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies in the above background art, the utility model provides a quick coupling for pipe pile connection.

[0004] The utility model adopts the following technical scheme:

[0005] A quick coupling for pipe pile connection, characterized in that the coupling comprises:

[0006] An upper embedded part, the upper embedded part comprises a threaded column, an adjusting column and a connecting column, the adjusting column is provided with the threaded column and the connecting column at both ends respectively, the adjusting column is a quadrangular prism, the diameter of the connecting column gradually increases, the diameter increasing direction is from the threaded column to the adjusting column, a plurality of outward protruding clamping teeth are arranged along the outer surface of the connecting column, the clamping teeth are horizontal annular teeth, and the plurality of clamping teeth are arranged vertically along the connecting column;

[0007] A lower embedded part, the lower embedded part comprises an embedded box, a clamping plate and a spring, the upper surface of the embedded box is provided with a downward recessed mounting groove, two clamping plates are arranged in the mounting groove, a connecting groove is formed in the surface of one side of each clamping plate, a plurality of inward recessed clamping grooves are arranged in the connecting groove, the clamping grooves are matched with the clamping teeth, the two clamping plates are arranged in the mounting groove and can move left and right, and a spring is arranged between each clamping plate and the groove wall at both ends of the mounting groove, and the two ends of the spring are connected to the groove wall of the mounting groove and the side surface of the clamping plate away from the clamping groove respectively;

[0008] After the connecting column is inserted between the two clamping plates, the spring is in a compressed state, the two clamping plates clamp the connecting column, and the clamping teeth are clamped in the clamping grooves.

[0009] As a further improvement, the end of the connecting column away from the adjusting column is provided with a guide pin, the diameter of the guide pin gradually decreases, the diameter decreasing direction is from the threaded column to the adjusting column, and the smallest diameter of the guide pin is smaller than the distance between the clamping grooves at the top of the two clamping plates.

[0010] As a further improvement, two limiting strips are mirror-imaged arranged on the groove walls of the mounting groove, and the limiting strips are located between the two clamping plates, and when the spring is not under stress, the clamping plates are attached to the surface of the limiting strips.

[0011] As a further improvement, the spring comprises an outer spring and an inner spring nested with each other, the outer spring is sleeved outside the inner spring, and the two ends of the outer spring and the two ends of the inner spring are respectively connected to the groove walls of the mounting groove and the side surfaces of the clamping plates away from the clamping groove.

[0012] As a further improvement, a protruding positioning pin is arranged on each groove wall at the ends of the mounting groove, and the inner spring is sleeved outside the positioning pin.

[0013] As can be seen from the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages: when connecting the first pipe pile and the second pipe pile, the connecting column fixed on the first pipe pile is aligned and inserted between the two clamping plates fixed in the pre-embedded box of the second pipe pile, and in the process, the two clamping plates are forced to move away, the spring is compressed, until the first pipe pile and the second pipe pile are attached, and the connecting column abuts against the inner bottom surface of the pre-embedded box, at this time, the two clamping plates are reset under the elastic restoring force of the spring, the two clamping plates are pressed on the outer side of the connecting column, the clamping teeth are clamped into the clamping groove, so that the connecting column and the clamping plate are difficult to be directly pulled apart during use, thereby realizing the clamping of the lower pre-embedded part and the upper pre-embedded part. The lower pre-embedded part and the upper pre-embedded part of the utility model can quickly and stably connect the first pipe pile and the second pipe pile, compared with the welding form, which can improve the construction efficiency, save cost and time. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structure schematic diagram of the lower pre-embedded part.

[0016] Figure 3 It is a three-dimensional structure schematic diagram of the pre-embedded box.

[0017] Figure 4 It is a three-dimensional structure schematic diagram of the clamping plate and the spring.

[0018] Figure 5 It is a three-dimensional structure schematic diagram of the spring.

[0019] Figure 6 It is a sectional structure schematic diagram of the lower pre-embedded part.

[0020] Figure 7 It is a three-dimensional structure schematic diagram of the upper pre-embedded part.

[0021] Figure 8 It is a front view structural schematic diagram of the upper embedded part.

[0022] Figure 9 It is a sectional view structural schematic diagram of the utility model.

[0023] Figure 10 It is a use structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model will be described below with reference to the drawings.

[0025] As shown in the accompanying Figure 1 , a quick connector for pipe pile connection includes a lower embedded part 1 and an upper embedded part 2.

[0026] As shown in the accompanying Figures 7 to 10 , the upper embedded part 2 includes a threaded column 21, an adjusting column 22 and a connecting column 23, the adjusting column 22 is respectively provided with the threaded column 21 and the connecting column 23 at both ends, a plurality of outward protruding clamping teeth 231 are arranged along the outer surface of the connecting column 23, the clamping teeth 231 are horizontal annular teeth, and the plurality of clamping teeth 231 are vertically arranged along the connecting column 23. When installing, the threaded column 21 of the upper embedded part 2 is connected into the first pipe pile 3, specifically, a threaded hole is formed on the first end head plate 4 fixedly connected to the connection end of the first pipe pile 3, the threaded column 21 is screwed with the threaded hole, so that the upper embedded part 2 is fixedly connected to the first pipe pile 3. Among them, the adjusting column 22 is a quadrangular prism, which facilitates the operation of the threaded column 21 by using a wrench, so that the threaded column 21 is quickly fixed on the first pipe pile 3.

[0027] As shown in the accompanying Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 10 , the lower embedded part 1 includes an embedded box 11, a clamping plate 13 and a spring 14, the upper surface of the embedded box 11 is provided with a downward recessed installation groove 12, two clamping plates 13 are arranged in the installation groove 12, a connecting groove 131 is formed on the surface of the two clamping plates 13 facing each other, a plurality of inward recessed clamping grooves 132 are arranged in the connecting groove 131, the clamping grooves 132 are matched with the clamping teeth 231, the two clamping plates 13 are arranged in the installation groove 12 and move left and right, and the spring 14 is arranged between the two clamping plates 13 and the groove walls at both ends of the installation groove 12, and the two ends of the spring 14 are respectively connected to the groove wall of the installation groove 12 and the side surface of the clamping plate 13 away from the clamping groove 132. When installing, the embedded box 11 of the lower embedded part 1 is connected to the second pipe pile 5, specifically, the embedded box 11 is embedded into the second pipe pile 5, a through hole is formed on the second end head plate 6 fixedly connected to the connection end of the second pipe pile 5, so that the through hole corresponds to the connecting groove 131 on the two clamping plates 13 in the embedded box 11.

[0028] As shown in the accompanyingFigure 9 and Figure 10 As shown, when connecting the first pipe pile 3 and the second pipe pile 5, the connecting column 23 fixed on the first pipe pile 3 is aligned and inserted between the connecting grooves 131 on the two clamping plates 13 fixed in the embedded box 11 of the second pipe pile 5. During the process, the two clamping plates 13 are forced to move back to back, compressing the spring 14 until the first end plate 4 on the first pipe pile 3 and the second end plate 6 on the second pipe pile 5 are in contact with each other, and the connecting column 23 is against the inner bottom surface of the embedded box 11. At this time, the two clamping plates 13 are elastically tightened under the spring 14. Under the action of the restoring force, the two clamping plates 13 are reset and pressed against the outside of the connecting column 23, so that the two clamping plates 13 clamp the connecting column 23, and the locking teeth 231 are locked in the locking groove 132. The inner wall of the locking groove 132 has a limiting effect on the locking teeth 231, which can enhance the connection stability between the connecting column 23 and the clamping plates 13, making it difficult to directly pull apart the connecting column 23 and the clamping plates 13 during use, thereby using the lower embedded part 1 and the upper embedded part 2 to quickly fix the first pipe pile 3 and the second pipe pile 5.

[0029] It is worth mentioning that, as Figure 4 、 Figure 8 and Figure 9 As shown, the diameter of the connecting post 23 gradually increases from the threaded post 21 to the adjustment post 22. At the same time, because the slot 132 is compatible with the latch teeth 231, the change in the slot 132 is consistent with the latch teeth 231. This change in the diameter of the connecting post 23 can strengthen the connection between the connecting post 23 and the clamping plate 13, increase the position limit, and prevent mutual sliding. Furthermore, a guide pin 24 is provided at the end of the connecting post 23 facing away from the adjustment post 22. The diameter of the guide pin 24 gradually decreases from the threaded post 21 to the adjustment post 22. The minimum diameter of the guide pin 24 is smaller than the distance between the slots 132 at the top of the two clamping plates 13 to ensure that the guide pin 24 can be smoothly inserted between the two clamping plates 13. When the connecting post 23 is inserted between the two clamping plates 13, the guide pin 24 can provide a good guide, allowing the connecting post 23 to be quickly and accurately inserted between the two clamping plates 13.

[0030] In addition, as attached Figure 2 、 Figure 3 and Figure 8 As shown, two limit bars 15 are mirror-imaged on the groove walls on both sides of the mounting groove 12. The limit bar 15 is located between the two clamping plates 13, and when the spring 14 is not under force, the clamping plate 13 rests on the surface of the limit bar 15. The two limit bars 15 can always maintain a certain distance between the two clamping plates 13, ensuring that the guide pin 24 and the connecting column 23 can be smoothly inserted between the two clamping plates 13.

[0031] In addition, as attached Figures 3 to 6As shown, the spring 14 includes the outer spring 141 and the inner spring 142 nested with each other, the outer spring 141 is sleeved outside the inner spring 142, and the two ends of the outer spring 141 and the two ends of the inner spring 142 are connected to the groove wall of the mounting groove 12 and the side surface of the clamping plate 13 opposite to the clamping groove 132 respectively, and the nested outer spring 141 and inner spring 142 make the spring 14 have higher bearing capacity when in use, and the elastic reaction of the spring 14 is more uniform and dense when the clamping plate 13 bears pressure, so that the clamping plate 13 can be better supported.

[0032] In conclusion, when the first pipe pile 3 and the second pipe pile 5 are connected, the connecting column 23 fixed on the first pipe pile 3 is aligned and inserted between the connecting grooves 131 on the two clamping plates 13 in the pre-embedded box 11 fixed on the second pipe pile 5, and the two clamping plates 13 are forced to move backward and compress the spring 14 during the process, until the first pipe pile 3 and the second pipe pile 5 are attached, and the connecting column 23 abuts against the inner bottom surface of the pre-embedded box 11, at this time, the two clamping plates 13 are reset under the elastic restoring force of the spring 14, the two clamping plates 13 are pressed outside the connecting column 23, the clamping teeth 231 are clamped into the clamping grooves 132, so that the connecting column 23 and the clamping plate 13 are difficult to be directly pulled apart during use, thereby realizing the clamping of the lower pre-embedded part 1 and the upper pre-embedded part 2.

[0033] The above is only a specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-essential modification of the present application using this concept shall be regarded as an infringement of the protection scope of the present application.

Claims

1. A quick connector for pipe pile connection, characterized in that: The connector includes: An upper embedded part, the upper embedded part includes a threaded column, an adjustment column and a connecting column, the threaded column and the connecting column are respectively provided at both ends of the adjusting column, the adjustment column is a quadrangular column, the diameter of the connecting column gradually increases, and the diameter increasing direction is from the threaded column to the adjustment column, and a plurality of outwardly protruding latch teeth are provided along the outer surface of the connecting column, the latch teeth are horizontal annular teeth, and the plurality of latch teeth are vertically arranged along the connecting column; The lower embedded part includes an embedded box, a clamping plate and a spring. The upper surface of the embedded box is provided with a downwardly concave mounting groove, and two clamping plates are provided in the mounting groove. The surfaces of the two clamping plates facing each other are provided with a connecting groove, and a plurality of inwardly concave card grooves are provided in the connecting groove. The card grooves are adapted to the card teeth. The two clamping plates are arranged in the mounting groove and move left and right. A spring is provided between the two clamping plates and the groove walls at both ends of the mounting groove. The two ends of the spring are respectively connected to the groove wall of the mounting groove and the side surface of the clamping plate facing away from the groove. Wherein, after the connecting column is inserted between the two clamping plates, the spring is in a compressed state, the two clamping plates clamp the connecting column, and the locking teeth are locked in the locking grooves.

2. A quick connector for connecting pipe piles according to claim 1, characterized in that: A guide pin is provided at one end of the connecting column facing away from the adjusting column, and the diameter of the guide pin gradually decreases from the threaded column to the adjusting column, and the minimum diameter on the guide pin is smaller than the distance between the slots at the top of the two clamping plates.

3. A quick connector for connecting pipe piles according to claim 2, characterized in that: Two limiting strips are mirror-imaged on the groove walls on both sides of the installation groove. The limiting strips are located between the two clamping plates, and when the spring is not under force, the clamping plates are pressed against the surfaces of the limiting strips.

4. A quick connector for connecting pipe piles according to claim 1, characterized in that: The spring includes an outer spring and an inner spring nested with each other, the outer spring is sleeved on the outside of the inner spring, and the two ends of the outer spring and the two ends of the inner spring are respectively connected to the wall of the mounting groove and the side surface of the clamping plate facing away from the slot.

5. A quick connector for connecting pipe piles according to claim 4, characterized in that: The groove walls at both ends of the installation groove are provided with protruding positioning pins, and the inner spring is sleeved on the outer side of the positioning pins.

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