Tooth type end plate connecting assembly and pile connecting structure
By designing a toothed end plate connection assembly, the elastic fins of the umbrella-shaped tube are engaged with the teeth of the insertion rod and fixed by the slots, which solves the problem of difficult position control of the insertion rod, achieves stable connection between the upper and lower end plates, and improves the pull-out and bending resistance of the pile.
Patent Information
- Application Number
- CN202422997092.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the connection of end plates of traditional precast concrete piles, it is difficult to control the axial position of the insert rod and the umbrella-shaped tube, which leads to unstable connection between the upper and lower end plates and affects the pull-out and bending resistance.
The toothed end plate connection assembly uses the elastic fins of the umbrella rib tube to mesh with the teeth of the insert rod, combined with the locking groove, to ensure that the insert rod is fixed in the axial position relative to the umbrella rib tube, thus achieving a stable connection between the upper and lower end plates.
It improves the connection stability of the upper and lower end plates, enhances the pile's pull-out and bending resistance, simplifies the connection operation, and reduces the difficulty of operation.
Smart Images
Figure CN223607846U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to precast component technical field especially toothed end plate connecting assembly and stake connecting structure. BACKGROUND
[0002] In the building construction process, the traditional precast concrete pile often needs to be connected, and the current conventional method is to weld the end plates of the upper and lower connecting piles. Because the internal space of the precast component is small, there is no working surface to weld or mechanically connect the inner side of the end plate, and generally only the periphery of the end plate is welded, and the inner side of the pile end plate is not connected, which will cause the end plate to be eccentrically stressed on the inside and outside when the pile is subjected to uplift force, greatly reducing the uplift and bending resistance of the pile connection.
[0003] Therefore, some new end plate connecting structures appear in the prior art, such as the Chinese utility model patent shown in publication No. CN15106086U, in which the upper and lower two end plates are connected together through a plug rod and an umbrella barrel, but the plug rod and the umbrella barrel are threadedly connected, and the position of the plug rod relative to the umbrella barrel in the axial direction is not easy to control, the plug rod may be excessively inserted into the umbrella barrel, or the distance of the plug rod inserted into the umbrella barrel may be insufficient, which will affect the connection of the upper and lower two end plates. SUMMARY
[0004] The utility model provides a toothed end plate connecting assembly and stake connecting structure, and the position of the plug rod relative to the umbrella barrel in the axial direction is relatively fixed, ensuring the smooth connection of the upper end plate and the lower end plate.
[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 embodiments of the utility model provide a toothed end plate connecting assembly, which comprises an upper end plate, a lower end plate, a plug rod and an umbrella barrel, the upper end plate is located above the lower end plate, the upper end plate is provided with an upper connecting hole, and the lower end plate is provided with a lower connecting hole, the umbrella barrel comprises an umbrella barrel body and a plurality of elastic fins, the lower end of the elastic fin is connected with the umbrella barrel body, the upper end of the elastic fin is outwardly flared, the outer surface of the upper end of the elastic fin is provided with first teeth, and the lower connecting hole is provided with second teeth, the plug rod comprises a connecting part at the upper end thereof and a clamping part at the lower end thereof, the connecting part is inserted into the upper connecting hole and connected with the upper end plate, the top 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 plug rod, in the process of inserting the plug rod and the umbrella barrel into the lower connecting hole, the upper end of the elastic fin can be inwardly contracted, and after the plug rod and the umbrella barrel are inserted into the lower connecting hole, the first teeth and the second teeth of the elastic fins are engaged with each other.
[0007] In some embodiments, the opening of the upper 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 upper end of the clamping groove has a diameter smaller than the outer diameter of the clamping part, and the opening of the upper end of the clamping groove has a diameter larger than the outer diameter of the main rod part.
[0008] In some embodiments, the lower end of the elastic fin is connected to the top surface of the umbrella rib barrel body, the lower end of the elastic fin protrudes from the inner wall of the clamping groove, and the inner side surface of the lower end of the elastic fin encloses the opening of the upper end of the clamping groove.
[0009] In some embodiments, the opening of the bottom surface of the umbrella rib barrel body has a diameter smaller than the diameter of the clamping groove.
[0010] In some embodiments, the second tooth is arranged on the inner wall of the lower connecting hole.
[0011] In some embodiments, an inner sleeve is further fixed in the lower connecting hole, the second tooth is arranged on the inner wall of the inner sleeve, and the insertion rod and the umbrella rib barrel can be inserted into the inner sleeve.
[0012] In some embodiments, the outer peripheral wall of the inner sleeve is provided with a first external thread, the inner wall of the lower connecting hole is provided with a first internal thread matched with the first external thread, and the inner sleeve is threadedly connected with the lower end plate.
[0013] In some embodiments, the outer wall of the connecting part is provided with a second external thread, the inner wall of the upper connecting hole is provided with a second internal thread matched with the second external thread, and the connecting part is threadedly connected with the upper end plate.
[0014] In some embodiments, the upper end plate and the lower end plate are both provided with a tensioning threaded hole and an anchoring hole.
[0015] 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 end plate connecting assembly in any one of the above-mentioned first aspect, the upper section pile is arranged above the lower section pile, the upper end plate is fixed to the lower end surface of the upper section pile, and the lower end plate is fixed to the upper end surface of the lower section pile.
[0016] The umbrella rib barrel comprises an umbrella rib barrel body and a plurality of elastic fins, the top surface of the umbrella rib barrel body is provided with a clamping groove, the insertion rod comprises a connecting part at the upper end thereof and a clamping part at the lower end thereof, the clamping part is clamped and fixed in the clamping groove, the connection between the umbrella rib barrel and the insertion rod is realized in a clamped and fixed manner, 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 upper end plate and the lower end plate is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is a sectional view of a tooth type end plate connecting assembly of an embodiment of the utility model;
[0018] Fig. 2 is a sectional view of a rib of an umbrella of an embodiment of the utility model;
[0019] Fig. 3 is a structural schematic view of a plug rod of an embodiment of the utility model;
[0020] Fig. 4 is a sectional view of a tooth type end plate connecting assembly of another embodiment of the utility model;
[0021] Fig. 5 is a sectional view of an inner sleeve of an embodiment of the utility model;
[0022] Fig. 6 is a sectional view of a pile connecting structure of an embodiment of the utility model.
[0023] Wherein, the reference signs are:
[0024] upper end plate 110, upper connecting hole 111, second internal thread 112;
[0025] lower end plate 120, lower connecting hole 121, second tooth 122, first internal thread 123;
[0026] plug rod 200, clamping portion 210, connecting portion 220, second external thread 221, main rod portion 230;
[0027] rib of an umbrella 300, rib body 310, clamping groove 311, elastic fin 320, first tooth 330;
[0028] inner sleeve 400, first external thread 410;
[0029] upper section pile 510, lower section pile 520. DETAILED DESCRIPTION
[0030] The utility model provides the following description of reference drawings 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.
[0031] In the description of the utility model, the orientation description, such as the orientation or positional relation of the indication of up, down, front, back, left, right etc. is the orientation or positional relation shown based on the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the utility model.
[0032] It should be understood that when an element (e.g., a first element) is "connected" with another element (e.g., a second element), the element can be directly connected with the other element, or there can be intervening elements (e.g., a third element) between the element and the other element.
[0033] The embodiment of the utility model provides a kind of gear type end plate connecting assembly, as shown in Figs. 1-3 Upper end plate 110 is located above lower end plate 120, and upper end plate 110 is provided with upper connecting hole 111, and lower end plate 120 is provided with lower connecting hole 121, and upper connecting hole 111 and lower connecting hole 121 can be butted to each other when upper end plate 110 and lower end plate 120 are connected. Umbrella rib barrel 300 includes umbrella rib barrel body 310 and a plurality of elastic fins 320, and umbrella rib barrel body 310 can be cylindrical, and elastic fin 320 can be elastically deformed. The lower end of elastic fin 320 is connected with umbrella rib barrel body 310, and the upper end of elastic fin 320 opens outward, i.e. opens outward relative to the axis of umbrella rib barrel body 310, which provides a space for elastic contraction of elastic fin 320. The outer surface of the upper end of elastic fin 320 is provided with first gear teeth 330, and the first gear teeth 330 can be distributed in one or more layers from top to bottom, and the lower connecting hole 121 is provided with second gear teeth 122 matched with the first gear teeth 330.
[0034] Plug rod 200 includes connecting portion 220 at its upper end and clamping portion 210 at its lower end, and connecting portion 220 is inserted into upper connecting hole 111 and connected with upper end plate 110. The top surface of umbrella rib barrel body 310 is provided with clamping groove 311, and 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, and without interfering with the elastic expansion and contraction of elastic fin 320. During the insertion of plug rod 200 and umbrella rib barrel 300 into lower connecting hole 121, the upper end of elastic fin 320 can be contracted inward, and after plug rod 200 and umbrella rib barrel 300 are inserted into lower connecting hole 121, first gear teeth 330 of elastic fin 320 and second gear teeth 122 are engaged with each other.
[0035] In the installation, first, the connecting part 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110, then the clamping part 210 is inserted into the clamping groove 311 and clamped and fixed in the clamping groove 311, finally, the insertion rod 200 and the umbrella rib barrel 300 are inserted into the lower connecting hole 121. During the insertion process, the upper end of the elastic fin 320 is inwardly retracted due to the blockage of the inner wall of the lower connecting hole 121, so that the insertion rod 200 and the umbrella rib barrel 300 are smoothly inserted into the lower connecting hole 121. After the insertion rod 200 and the umbrella rib barrel 300 are inserted into the lower connecting hole 121, the first tooth 330 and the second tooth 122 of the elastic fin 320 are engaged with each other, limiting the umbrella rib barrel 300 from being separated from the lower end plate 120, and the insertion rod 200 is fixed in the lower end plate 120, so that the upper end plate 110 and the lower end plate 120 are connected together.
[0036] In the embodiment, since the clamping part 210 is clamped and fixed in the clamping groove 311, the connection between the umbrella rib barrel 300 and the insertion rod 200 is achieved by clamping and fixing. This way limits the movement of the insertion rod 200 relative to the umbrella rib barrel 300, and the position of the insertion rod 200 relative to the umbrella rib barrel 300 in the axial direction is relatively fixed, which ensures the smooth connection of the upper end plate 110 and the lower end plate 120.
[0037] In some embodiments, the clamping groove 311 is arranged on the top surface of the umbrella rib barrel body, so that the upper end of the clamping groove 311 naturally has an opening, and the diameter of the opening of the upper end of the clamping groove 311 is smaller than the inner diameter of the clamping groove 311, forming a step structure at the opening position. The insertion rod 200 further includes a main rod part 230 connecting the clamping part 210 and the connecting part 220. The diameter of the opening of the upper end of the clamping groove 311 is smaller than the outer diameter of the clamping part 210, so that when the clamping part 210 moves upward, it will be blocked by the step structure, and thus the clamping part 210 is difficult to disengage from the clamping groove 311 through the opening of the upper end of the clamping groove 311, and can be stably clamped in the clamping groove 311. At the same time, the diameter of the opening of the upper end of the clamping groove 311 is larger than the outer diameter of the main rod part 230, so that the main rod part 230 can protrude out of the opening of the upper end of the clamping groove 311.
[0038] Further, the lower end of the elastic fin 320 is connected with the top surface of the umbrella rib barrel body 310, and the lower end of the elastic fin 320 protrudes from the inner wall of the clamping groove 311. The inner side surface of the lower end of the elastic fin 320 surrounds to form the opening of the upper end of the clamping groove 311. Therefore, in this embodiment, the step structure is formed by the lower end of the elastic fin 320, and no additional step structure needs to be configured for the clamping groove 311, which simplifies the overall structure of the umbrella rib barrel 300.
[0039] In the embodiment, the thickness of the elastic fin 320 can be greater than the wall thickness of the umbrella rib barrel body 310, so that the lower end of the elastic fin 320 can protrude from the inner wall of the clamping groove 311.
[0040] In some embodiments, the opening on the bottom surface of the rib barrel body 310 has a smaller diameter than the inner diameter of the clamping groove 311. The rib barrel body 310 is provided with the opening, which reduces the material usage of the rib barrel body 310 and facilitates the observation of the clamping condition of the clamping part 210 in the clamping groove 311. Since the opening on the bottom surface of the rib barrel body 310 has a smaller diameter than the inner diameter of the clamping groove 311, the clamping part 210 is difficult to disengage from the clamping groove 311 through the opening on the bottom surface of the rib barrel body 310, which further limits the movement of the insertion rod 200 relative to the rib barrel 300, and the clamping part 210 can be more stably clamped in the clamping groove 311.
[0041] 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.
[0042] In some embodiments, as shown in FIG. 6, the second teeth 122 are arranged on the inner wall of the lower connecting hole 121, i.e., the inner wall of the lower connecting hole 121 directly forms the second teeth 122, which simplifies the structural design. Figs. 1-3
[0043] In this embodiment, the second teeth 122 can be annular and distributed along the axial direction of the lower connecting hole 121. The rib barrel 300 and the insertion rod 200 can be inserted into the lower connecting hole 121 at any angle, which can make the first teeth 330 and the second teeth 122 of the elastic fin 320 engage, saving the angular alignment operation and facilitating the connection.
[0044] In some embodiments, compared with the above-mentioned embodiments, this embodiment provides another arrangement of the second teeth 122. As shown in FIG. 7, an inner sleeve 400 is further fixed in the lower connecting hole 121, and the second teeth 122 are arranged on the inner wall of the inner sleeve 400. The insertion rod 200 and the rib barrel 300 can be inserted into the inner sleeve 400. Figs. 4-5
[0045] During installation, the clamping part 210 is inserted into the clamping groove 311 and clamped and fixed in the clamping groove 311 after the connecting part 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110. Finally, the insertion rod 200 and the rib barrel 300 are inserted into the inner sleeve 400. During the insertion process, the upper end of the elastic fin 320 is inwardly retracted due to the blockage of the inner wall of the inner sleeve 400, so that the insertion rod 200 and the rib barrel 300 are smoothly inserted into the inner sleeve 400. After the insertion rod 200 and the rib barrel 300 are inserted into the inner sleeve 400, the first teeth 330 and the second teeth 122 of the elastic fin 320 engage with each other, which limits the rib barrel 300 from disengaging from the lower end plate 120. The insertion rod 200 is fixed in the lower end plate 120, so that the upper end plate 110 and the lower end plate 120 are connected together.
[0046] The second tooth 122 is formed by the inner sleeve 400, and the second tooth 122 does not need to be processed on the inner wall of the lower connecting hole 121, so that the operation difficulty is reduced.
[0047] Further, the outer peripheral wall of the inner sleeve 400 is provided with the first outer thread 410, the inner wall of the lower connecting hole 121 is provided with the first inner thread 123 matched with the first outer thread 410, and the inner sleeve 400 is threadedly connected with the lower end plate 120.
[0048] In some embodiments, the outer wall of the connecting part 220 is provided with the second outer thread 221, the inner wall of the upper connecting hole 111 is provided with the second inner thread 112 matched with the second outer thread 221, and the connecting part 220 is threadedly connected with the upper end plate 110.
[0049] In some embodiments, the upper end plate 110 and the lower end plate 120 are both provided with tensioning threaded holes, when the prestressed steel bars are tensioned, the tensioning screws can be inserted into the tensioning threaded holes and connected with the upper end plate 110 or the lower end plate 120, so as to be used for tensioning the prestressed steel bars in the prestressed concrete member.
[0050] Further, the upper end plate 110 and the lower end plate 120 are both provided with anchoring holes, and the prestressed steel bars in the prefabricated concrete pile can be fixed in the anchoring holes.
[0051] Further, the tensioning threaded holes can be communicated with the anchoring holes, so that the heads of the prestressed steel bars are moved to the anchoring holes through the rear side of the tensioning threaded holes, so as to be fixed in the anchoring holes.
[0052] An embodiment of the utility model provides a pile connecting structure, as shown in the figure, Fig. 6 The specific structure of the tooth type end plate connecting assembly can be referred to the above-mentioned embodiments, and will not be repeated here. The upper section pile 510 is arranged above the lower section pile 520, the upper end plate 110 is fixed to the lower end surface of the upper section pile 510, and the lower end plate 120 is fixed to the upper end surface of the lower section pile 520.
[0053] When the pile is connected, the clamping part 210 of the inserting rod is clamped and fixed in the clamping groove of the umbrella rib barrel to realize the connection of the inserting rod and the umbrella rib barrel, the connecting part 220 of the inserting rod is inserted into the upper connecting hole 111 and connected with the upper end plate 110, then the upper section pile 510 is lifted to make the upper section pile 510 align with the lower section pile 520, the inserting rod and the umbrella rib barrel align with the lower connecting hole 121, the upper section pile 510 is placed on the top surface of the lower section pile 520, the lower end of the inserting rod and the umbrella rib barrel are passed through the lower connecting hole 121 by using the weight of the upper section pile 510, the elastic fins 320 are squeezed and contracted and then rebounded, finally the first tooth and the second tooth are engaged with each other, thereby realizing the connection of the upper section pile 510 and the lower section pile 520.
[0054] The terms and words used in the above description and claims are not limited by the literal meaning but are merely used by the applicant to enable a clear and consistent understanding of the present application. Accordingly, it should be understood by those skilled in the art that the above description of various embodiments of the present application is provided only to explain the present application and is not intended to limit the present application defined by the following claims and their equivalents.
Claims
1. A toothed end plate connection assembly, characterized by: The umbrella rib connecting assembly comprises an upper end plate, a lower end plate, a plug rod and an umbrella rib cylinder; the upper end plate is above the lower end plate, the upper end plate is provided with an upper connecting hole, and the lower end plate is provided with a lower connecting hole; the umbrella rib cylinder comprises an umbrella rib cylinder body and a plurality of elastic fins, the lower end of the elastic fin is connected with the umbrella rib cylinder body, the upper end of the elastic fin is outwardly opened, the outer surface of the upper end of the elastic fin is provided with a first tooth, and the lower connecting hole is provided with a second tooth; the plug rod comprises a connecting part at the upper end thereof and a clamping part at the lower end thereof, the connecting part is inserted into the upper connecting hole and connected with the upper end plate; the top surface of the umbrella rib cylinder 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 plug rod; during the process that the plug rod and the umbrella rib cylinder are inserted into the lower connecting hole, the upper end of the elastic fin can be inwardly contracted, and after the plug rod and the umbrella rib cylinder are inserted into the lower connecting hole, the first tooth of the elastic fin and the second tooth are engaged with each other.
2. The splined end plate connection assembly of claim 1, wherein: The diameter of the opening at the upper end of the clamping groove is smaller than the diameter of the clamping groove, the plug rod further comprises a main rod part connecting the clamping part and the connecting part, the diameter of the opening at the upper end of the clamping groove is smaller than the outer diameter of the clamping part, and the diameter of the opening at the upper end of the clamping groove is larger than the outer diameter of the main rod part.
3. The splined end plate connection assembly of claim 2, wherein: The lower end of the elastic fin is connected with the top surface of the umbrella rib cylinder body, the lower end of the elastic fin protrudes from the inner wall of the clamping groove, and the inner side surface of the lower end of the elastic fin forms the opening at the upper end of the clamping groove.
4. The splined end plate connection assembly of claim 1, wherein: The diameter of the opening at the bottom surface of the umbrella rib cylinder body is smaller than the diameter of the clamping groove.
5. The splined end plate connection assembly of claim 1, wherein: The second tooth is arranged on the inner wall of the lower connecting hole.
6. The splined end plate connection assembly of claim 1, wherein: An inner sleeve is further fixed in the lower connecting hole, the second tooth is arranged on the inner wall of the inner sleeve, and the plug rod and the umbrella rib cylinder can be inserted into the inner sleeve.
7. The splined end plate connection assembly of claim 6, wherein: A first outer thread is arranged on the outer peripheral wall of the inner sleeve, a first inner thread matched with the first outer thread is arranged on the inner wall of the lower connecting hole, and the inner sleeve is threadedly connected with the lower end plate.
8. The splined end plate connection assembly of any of claims 1-7, wherein: A second outer thread is arranged on the outer wall of the connecting part, a second inner thread matched with the second outer thread is arranged on the inner wall of the upper connecting hole, and the connecting part is threadedly connected with the upper end plate.
9. The splined end plate connection assembly of any of claims 1-7, wherein: The upper end plate and the lower end plate are both provided with a tensioning threaded hole and an anchoring hole.
10. A pile connection structure, characterized by: The umbrella rib connecting assembly comprises an upper end plate, a lower end plate, a plug rod and an umbrella rib cylinder; the upper end plate is above the lower end plate, the upper end plate is provided with an upper connecting hole, the lower end plate is provided with a lower connecting hole; the umbrella rib cylinder comprises an umbrella rib cylinder body and a plurality of elastic fins, the lower end of the elastic fin is connected with the umbrella rib cylinder body, the upper end of the elastic fin is outwardly opened, the outer surface of the upper end of the elastic fin is provided with a first tooth, and the lower connecting hole is provided with a second tooth; the plug rod comprises a connecting part at the upper end thereof and a clamping part at the lower end thereof, the connecting part is inserted into the upper connecting hole and connected with the upper end plate; the top surface of the umbrella rib cylinder 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 plug rod; during the process that the plug rod and the umbrella rib cylinder are inserted into the lower connecting hole, the upper end of the elastic fin can be inwardly contracted, and after the plug rod and the umbrella rib cylinder are inserted into the lower connecting hole, the first tooth of the elastic fin and the second tooth are engaged with each other.