Tooth type connecting assembly and pile connecting structure

Abstract

The utility model relates to the technical field of pile connection, and particularly discloses a tooth type connecting assembly and a pile connecting structure. The tooth type connecting assembly comprises a first sleeve, a second sleeve, an inserting rod and an umbrella rib barrel. The umbrella rib barrel comprises an umbrella rib barrel body and a plurality of elastic fins, the upper ends of the elastic fins are connected with the umbrella rib barrel body, the elastic fins expand outwards, first teeth are arranged on the outer surfaces of the elastic fins, and second teeth are arranged on the inner wall of the first sleeve; the inserting rod comprises a clamping part located at the upper end of the inserting rod and a connecting part located at the lower end of the inserting rod, a clamping groove is formed in the bottom face of the umbrella rib cylinder body, and the clamping part is clamped and fixed in the clamping groove; in the process that the inserting rod is inserted into the first sleeve, the lower ends of the elastic fins can contract inwards, and after the inserting rod is inserted into the first sleeve, the first teeth and the second teeth are meshed with each other; the connecting part is connected with the second sleeve. The positions of the insertion rod and the umbrella rib cylinder in the axial direction are relatively fixed, and smooth connection of the insertion rod and the sleeve is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile connecting technical field especially toothed connection assembly and pile connecting structure. BACKGROUND

[0002] In the construction process, the connection between the prefabricated concrete members is indispensable, and the butt joint of the traditional prefabricated concrete pipe pile is realized by welding between the pile end steel plates, but due to the limitation of the welding process, only the outer periphery of the end plate is usually welded, and most of the middle part of the end plate is not treated, which will lead to uneven and insufficient connection of the pile body, and the pile body has low pullout resistance and bending resistance.

[0003] Therefore, some new connection structures appear on the market, such as the Chinese utility model patent with the publication number CN214832591U discloses a prefabricated concrete connecting piece with teeth, which can realize the rapid connection of two concrete piles and improve the tensile and pullout resistance of the concrete connecting piece. However, in the patent document, the umbrella barrel and the insertion rod are threadedly connected, and the position of the insertion rod relative to the umbrella barrel in the axial direction is difficult to control. The insertion rod may be excessively inserted into the umbrella barrel, or the distance of the insertion rod inserted into the umbrella barrel may be insufficient, which will affect the connection of the insertion rod and the sleeve. SUMMARY

[0004] The utility model provides a toothed connection assembly and pile connecting structure, and the position of the insertion rod relative to the umbrella barrel in the axial direction is relatively fixed, which ensures the smooth connection of the insertion rod and the sleeve.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] According to the first aspect of the utility model, the embodiment of the utility model provides a toothed connection assembly, which comprises a first sleeve, a second sleeve, an insertion rod and an umbrella barrel; the umbrella barrel comprises an umbrella barrel body and a plurality of elastic fins, the upper end of the elastic fin is connected with the umbrella barrel body, the lower end of the elastic fin is outwardly flared, the outer surface of the lower end of the elastic fin is provided with first teeth, and the inner wall of the first sleeve is provided with second teeth; the insertion rod comprises a clamping part at the upper end thereof and a connecting part at the lower end thereof, the bottom surface of the umbrella barrel body is provided with a clamping groove, the clamping part is clamped and fixed in the clamping groove, and the elastic fins are arranged around the insertion rod; in the process of inserting the insertion rod and the umbrella barrel into the first sleeve, the lower end of the elastic fin can be inwardly contracted, and after the insertion rod and the umbrella barrel are inserted into the first sleeve, the first teeth and the second teeth of the elastic fin are engaged with each other; at least a part of the connecting part protrudes from the first sleeve and is connected with the second sleeve.

[0007] In some embodiments, the opening of the lower end of the clamping groove has a diameter smaller than the diameter of the clamping groove, the insertion rod further comprises a main rod part connecting the clamping part and the connecting part, the opening of the lower end of the clamping groove has a diameter smaller than the outer diameter of the clamping part, and the opening of the lower end of the clamping groove has a diameter larger than the outer diameter of the main rod part.

[0008] In some embodiments, the upper end of the elastic fin is connected to the bottom surface of the umbrella rib barrel body, the upper end of the elastic fin protrudes from the inner wall of the clamping groove, and the inner side surface of the upper end of the elastic fin encloses the opening of the lower end of the clamping groove.

[0009] In some embodiments, the opening of the top surface of the umbrella rib barrel body has a diameter smaller than the diameter of the clamping groove.

[0010] In some embodiments, the umbrella rib barrel body and the elastic fin are integrally formed.

[0011] In some embodiments, the inner wall of the first sleeve is further provided with a tension thread for connecting a tension screw, and the tension thread is located between the top opening of the first sleeve and the second tooth.

[0012] In some embodiments, the outer wall of the connecting part is provided with an external thread, the inner wall of the second sleeve is provided with an internal thread matched with the external thread, and the connecting part is threadedly connected with the second sleeve.

[0013] According to the second aspect of the utility model, the embodiments of the utility model provide a pile connecting structure which comprises an upper section pile, a lower section pile and the toothed connecting assembly of any one of the above first aspect, the upper section pile is arranged above the lower section pile, a first main reinforcement is embedded in the upper section pile, and a second main reinforcement is embedded in the lower section pile; the first sleeve is anchored to the lower end surface of the upper section pile, and the first main reinforcement is connected with the first sleeve; the second sleeve is anchored to the upper end surface of the lower section pile, and the second main reinforcement is connected with the second sleeve.

[0014] The utility model has at least the following beneficial effects: the umbrella rib barrel of the utility model comprises an umbrella rib barrel body and a plurality of elastic fins, the bottom surface of the umbrella rib barrel body is provided with a clamping groove, the insertion rod comprises a clamping part at the upper end and a connecting part at the lower end, the clamping part is clamped and fixed in the clamping groove, the connection between the umbrella rib barrel and the insertion rod is realized by the clamping and fixing mode, the movement of the insertion rod relative to the umbrella rib barrel is limited, the position of the insertion rod relative to the umbrella rib barrel in the axial direction is relatively fixed, and the smooth connection between the insertion rod and the sleeve is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional view of the toothed connecting assembly of an embodiment of the utility model;

[0016] Figure 2 It is a sectional view of the insertion rod of an embodiment of the utility model;

[0017] Figure 3 It is a cross-sectional view of the umbrella rib barrel of an embodiment of the utility model;

[0018] Figure 4 It is a cross-sectional view of the first sleeve of an embodiment of the utility model;

[0019] Figure 5 It is a cross-sectional view of the pile connecting structure of an embodiment of the utility model.

[0020] Wherein, the reference signs are:

[0021] First sleeve 110, second tooth 111, tension thread 112;

[0022] Second sleeve 120, internal thread 121;

[0023] Inserting rod 200, clamping part 210, connecting part 220, external thread 221, main rod part 230;

[0024] Umbrella rib barrel 300, umbrella rib barrel body 310, clamping groove 311, elastic fin 320, first tooth 330;

[0025] Upper section pile 410, lower section pile 420;

[0026] First main reinforcement 510, second main reinforcement 520. Specific implementation

[0027] The utility model provides the following description of reference drawing to help comprehensively understand various embodiments of the utility model as defined by the claims and its equivalents. The description includes various specific details to help understanding, but these details should be regarded as just exemplary. Therefore, those skilled in the art will realize that various changes and modifications can be made to various embodiments described herein without departing from the scope and spirit of the utility model.

[0028] In the description of the utility model, the orientation description such as the orientation or position relationship indicated by up, down, front, back, left, right etc. is based on the orientation or position relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the utility model.

[0029] It should be understood that when one element (for example, a first element) is "connected" with another element (for example, a second element), the element can be directly connected with another element, or there can be an intervening element (for example, a third element) between the element and another element.

[0030] The utility model discloses an embodiment provides a kind of toothed connection assembly, as shown in Figures 1-4 Including first sleeve 110, second sleeve 120, plug rod 200 and umbrella rib cylinder 300. Umbrella rib cylinder 300 includes umbrella rib cylinder body 310 and multiple elastic fins 320, umbrella rib cylinder body 310 can be cylindrical, and elastic fin 320 can be elastically deformed. The upper end of elastic fin 320 is connected with umbrella rib cylinder body 310, and the lower end of elastic fin 320 opens outward, that is, it opens outward relative to the axis of umbrella rib cylinder body 310, which provides a moving space for the elastic contraction of elastic fin 320. The outer surface of the lower end of elastic fin 320 is provided with first tooth 330, and the inner wall of first sleeve 110 is provided with second tooth 111 matched with first tooth 330.

[0031] Plug rod 200 includes clamping portion 210 at its upper end and connecting portion 220 at its lower end, and the bottom surface of umbrella rib cylinder body 310 is provided with clamping groove 311, clamping portion 210 is clamped and fixed in clamping groove 311, and elastic fin 320 is arranged around plug rod 200 without interfering with the insertion of clamping portion 210 of plug rod 200 into clamping groove 311 or the elastic expansion and contraction of elastic fin 320. During the insertion of plug rod 200 and umbrella rib cylinder 300 into first sleeve 110, the lower end of elastic fin 320 can contract inward, and after plug rod 200 and umbrella rib cylinder 300 are inserted into first sleeve 110, first tooth 330 of elastic fin 320 and second tooth 111 engage with each other. At least a part of connecting portion 220 protrudes from first sleeve 110 and is connected with second sleeve 120.

[0032] During installation, connecting portion 220 is connected with second sleeve 120 first, then clamping portion 210 is inserted into clamping groove 311 and clamped and fixed in clamping groove 311, and finally plug rod 200 and umbrella rib cylinder 300 are inserted into first sleeve 110. During the insertion process, the lower end of elastic fin 320 will contract inward due to the blockage of first sleeve 110, so that plug rod 200 and umbrella rib cylinder 300 are smoothly inserted into first sleeve 110. After plug rod 200 and umbrella rib cylinder 300 are inserted into first sleeve 110, first tooth 330 of elastic fin 320 and second tooth 111 engage with each other, limiting umbrella rib cylinder 300 from disengaging from first sleeve 110, plug rod 200 is fixed in first sleeve 110, so that first sleeve 110 and second sleeve 120 are connected together.

[0033] In this embodiment, clamping portion 210 is clamped and fixed in clamping groove 311, and the connection between umbrella rib cylinder 300 and plug rod 200 is realized by clamping and fixing, which limits the movement of plug rod 200 relative to umbrella rib cylinder 300, and the position of plug rod 200 relative to umbrella rib cylinder 300 in the axial direction is relatively fixed, ensuring the smooth connection of plug rod 200 and sleeve.

[0034] In some embodiments, the card slot 311 has an opening at the lower end due to being arranged on the bottom surface of the rib barrel body, and the diameter of the opening at the lower end of the card slot 311 is smaller than the inner diameter of the card slot 311, forming a step structure at the opening position. The plug rod 200 further comprises a main rod part 230 connecting the clamping part 210 and the connecting part 220, the diameter of the opening at the lower end of the card slot 311 is smaller than the outer diameter of the clamping part 210, and when the clamping part 210 moves downward, it will be blocked by the step structure, so that the clamping part 210 is difficult to disengage from the card slot 311 through the opening at the lower end of the card slot 311, and thus can be stably clamped in the card slot 311. At the same time, the diameter of the opening at the lower end of the card slot 311 is larger than the outer diameter of the main rod part 230, so that the main rod part 230 can extend out of the opening at the lower end of the card slot 311.

[0035] Further, the upper end of the elastic fin 320 is connected to the bottom surface of the rib barrel body 310, the upper end of the elastic fin 320 protrudes from the inner wall of the card slot 311, and the inner side surface of the upper end of the elastic fin 320 surrounds to form the opening at the lower end of the card slot 311. Therefore, the step structure is formed by the upper end of the elastic fin 320 in the present embodiment, and no additional step structure needs to be arranged for the card slot 311, thereby simplifying the overall structure of the whole rib barrel 300.

[0036] In the present embodiment, the thickness of the elastic fin 320 can be greater than the wall thickness of the rib barrel body 310, so that the upper end of the elastic fin 320 can protrude from the inner wall of the card slot 311.

[0037] In some embodiments, the diameter of the opening at the top surface of the rib barrel body 310 is smaller than the inner diameter of the card slot 311, and the opening is arranged at the top surface of the rib barrel body 310, thereby reducing the material usage of the rib barrel body 310 and facilitating the observation of the clamping condition of the clamping part 210 in the card slot 311. Since the diameter of the opening at the top surface of the rib barrel body 310 is smaller than the inner diameter of the card slot 311, the clamping part 210 is difficult to disengage from the card slot 311 through the opening at the top surface of the rib barrel body 310, further limiting the movement of the plug rod 200 relative to the rib barrel 300, and the clamping part 210 can be more stably clamped in the card slot 311.

[0038] In some embodiments, the rib barrel body 310 and the elastic fin 320 are integrally formed, which facilitates the manufacturing of the rib barrel 300 and can strengthen the connection strength of the rib barrel body 310 and the elastic fin 320.

[0039] In some embodiments, the inner wall of the first sleeve 110 is further provided with a tensioning thread 112 for connecting a tensioning screw, the tensioning thread 112 being located between the top opening of the first sleeve 110 and the second tooth 111. When tensioning the prestressed steel bar, the insertion rod 200 and the umbrella barrel 300 are not inserted into the first sleeve 110, the prestressed steel bar can be connected with the first sleeve 110, the tensioning screw is inserted into the first sleeve 110 and is threadedly connected with the tensioning thread 112, thereby being capable of being used for tensioning the prestressed steel bar in the prestressed concrete member, so that the function of the first sleeve 110 of the embodiment is more diversified.

[0040] Since the diameter of the tensioning screw used for tensioning in the industry is generally 27mm, if the tensioning thread 112 is arranged below the second tooth 111, in order to be able to pass through the first sleeve at the tensioning thread 112, the size of the insertion rod 200 and the umbrella barrel 300 can only be small, so that the size of the insertion rod 200 and the umbrella barrel 300 is limited, resulting in that the size of the ultimate tensile load bearing capacity of the entire connecting assembly is limited. The tensioning thread 112 of the embodiment is arranged between the top opening of the first sleeve 110 and the second tooth 111, the insertion rod 200 and the umbrella barrel 300 do not need to extend into the tensioning thread 112, so that the size of the insertion rod 200 and the umbrella barrel 300 is not limited, the outer diameter of the insertion rod and the thickness of the umbrella barrel 300 can be larger, thereby improving the tensile load bearing capacity of the entire connecting assembly.

[0041] In some embodiments, the outer wall of the connecting part 220 is provided with an outer thread 221, the inner wall of the second sleeve 120 is provided with an inner thread 121 matched with the outer thread 221, the connecting part 220 is threadedly connected with the second sleeve 120, and the threadedly connected manner is easy to operate and is more simple to assemble.

[0042] The embodiment of the utility model provides a pile connecting structure, as shown in the figure, including upper section pile 410, lower section pile 420 and toothed connecting assembly of any above embodiment, the specific description of toothed connecting assembly can refer to above embodiment, and here is not repeated. Figure 5 As shown in the figure, including upper section pile 410, lower section pile 420 and toothed connecting assembly of any above embodiment, the specific description of toothed connecting assembly can refer to above embodiment, and here is not repeated.

[0043] The upper section pile 410 is arranged above the lower section pile 420, the first main reinforcement 510 is embedded in the upper section pile 410, and the second main reinforcement 520 is embedded in the lower section pile 420. The first sleeve 110 is anchored to the lower end face of the upper section pile 410, and the first main reinforcement 510 is connected with the first sleeve 110. The second sleeve 120 is anchored to the upper end face of the lower section pile 420, and the second main reinforcement 520 is connected with the second sleeve 120.

[0044] When the piles are connected, the clamping part of the inserting rod 200 is clamped and fixed in the clamping groove of the umbrella rib barrel, the connection of the inserting rod 200 and the umbrella rib barrel is realized, the connecting part of the inserting rod 200 is connected with the second sleeve 120 in the lower section pile 420, then the upper section pile 410 is lifted, the upper section pile 410 is aligned with the lower section pile 420, the inserting rod 200 and the umbrella rib barrel are aligned with the first sleeve 110, then the upper section pile 410 is placed on the top surface of the lower section pile 420, the inserting rod 200 and the umbrella rib barrel are pressed into the first sleeve 110 by the weight of the upper section pile 410, the elastic fins 320 are squeezed and contracted and then are bounced open, finally the first tooth and the second tooth are engaged with each other, and the connection of the upper section pile 410 and the lower section pile 420 is realized.

[0045] In some embodiments, the opening at the top end of the first sleeve 110 is provided with a first convex ring, the end of the first main rib 510 is formed into a head, and the head of the first main rib 510 is clamped at the first convex ring, so that the first main rib 510 is connected with the first sleeve 110.

[0046] The opening at the bottom end of the second sleeve 120 is provided with a second convex ring, the end of the second main rib 520 is formed into a head, and the head of the second main rib 520 is clamped at the second convex ring, so that the second main rib 520 is connected with the second sleeve 120.

[0047] The terms and words used in the above description and claims are not limited to the literal meaning, but are only used by the applicant to enable a clear and consistent understanding of the present application. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present application is provided only for explanation, not for limitation, of the present application as defined by the appended claims and their equivalents.

Claims

1. A sintered joint assembly, characterized by: The umbrella rib tube comprises an umbrella rib tube body and a plurality of elastic fins, the upper end of the elastic fin is connected with the umbrella rib tube body, the lower end of the elastic fin is outwardly flared, the outer surface of the lower end of the elastic fin is provided with first teeth, and the inner wall of the first sleeve is provided with second teeth.

2. The sipe connection assembly of claim 1, wherein: The diameter of the opening at the lower end of the clamping groove is smaller than the diameter of the clamping groove, the inserting rod further comprises a main rod part connecting the clamping part and the connecting part, the diameter of the opening at the lower end of the clamping groove is smaller than the outer diameter of the clamping part, and the diameter of the opening at the lower end of the clamping groove is larger than the outer diameter of the main rod part.

3. The sipe connection assembly of claim 2, wherein: The upper end of the elastic fin is connected with the bottom surface of the umbrella rib tube body, the upper end of the elastic fin protrudes from the inner wall of the clamping groove, and the inner side surface of the upper end of the elastic fin encloses the opening at the lower end of the clamping groove.

4. The sipe connection assembly of claim 1, wherein: The diameter of the opening at the top surface of the umbrella rib tube body is smaller than the diameter of the clamping groove.

5. The interlocking tooth assembly of any of claims 1-4, wherein: The umbrella rib tube body and the elastic fin are integrally formed.

6. The interlocking tooth assembly of any of claims 1-4, wherein: The inner wall of the first sleeve is further provided with tension threads for connecting tension screws, and the tension threads are located between the top opening of the first sleeve and the second teeth.

7. The interlocking tooth assembly of any of claims 1-4, wherein: The outer wall of the connecting part is provided with external threads, the inner wall of the second sleeve is provided with internal threads matched with the external threads, and the connecting part is threadedly connected with the second sleeve.

8. A pile connection structure, characterized by: The toothed connecting assembly comprises an upper pile section, a lower pile section and the toothed connecting assembly according to any one of claims 1-7, the upper pile section is arranged above the lower pile section, a first main reinforcement is embedded in the upper pile section, and a second main reinforcement is embedded in the lower pile section, the first sleeve is anchored to the lower end surface of the upper pile section, the first main reinforcement is connected with the first sleeve, the second sleeve is anchored to the upper end surface of the lower pile section, and the second main reinforcement is connected with the second sleeve.

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