CN218757427U

CN218757427U - Quick mechanical connection structure and prefabricated part thereof

Info

Publication number: CN218757427U
Application number: CN202222919708.XU
Authority: CN
Inventors: 陈巧; 金忠良; 李永波
Original assignee: Jianhua Construction Materials China Co Ltd
Current assignee: Jianhua Construction Materials China Co Ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-28
Anticipated expiration: 2032-11-01

Abstract

The invention provides a quick mechanical connection structure and a prefabricated member thereof, which comprise an upper sleeve, a lower sleeve, an inserted rod, a middle nut, a clamping piece assembly and an elastic element, wherein the upper sleeve is fixedly connected with the lower sleeve; one end of the upper sleeve and one end of the lower sleeve are respectively provided with a rib penetrating hole for connecting the main rib; one end of the inserted rod is arranged in the upper sleeve; the middle nut is arranged in the lower sleeve, the elastic element is arranged in the lower sleeve, the clamping piece assembly is arranged between the elastic element and the middle nut, and one end of the clamping piece assembly is inserted into the middle nut through the elastic element; the other end of the inserted bar penetrates through the middle nut to be clamped with the clamping piece assembly, and the inserted bar is used for enabling the upper sleeve to be in butt joint with the lower sleeve. The utility model discloses a high tolerance mechanical connection of upper and lower sleeve, inserted bar, middle nut, clamping piece subassembly and elastic element realization prefab and prefab can exempt from the welding during on-the-spot installation.

Description

Quick mechanical connection structure and prefabricated part thereof

Technical Field

The utility model relates to a technical field is connected to the prefab, in particular to quick mechanical connection structure and precast pile thereof.

Background

The concrete precast pile for foundation engineering at present is connected by welding the end plates at the ends of adjacent piles when the pile is connected. The welding connection mode has high requirements on the technical level of constructors, is greatly influenced by external weather and the level difference of field constructors, is easy to cause large quality difference between the welding of piles, and is difficult to control the welding quality, so that the potential safety hazard exists in the connection structure at the pile head of the precast pile.

In order to solve the quality hidden trouble of on-site welding construction, part of projects adopt mechanical connection, and the precast pile is free from welding during on-site installation, but the requirements of relevant mechanical connection accessories on installation personnel and the concrete quality of the pile end face are higher, and even the manufacturing cost of part of mechanical connection is higher than that of welding connection.

Disclosure of Invention

To exist not enough among the prior art, the utility model provides a quick mechanical connection structure and precast pile thereof realizes the high tolerance mechanical connection of prefab and prefab through upper and lower sleeve, inserted bar, middle nut, clamping piece subassembly and elastic element, can exempt from the welding during on-the-spot installation.

The utility model discloses a realize above-mentioned technical purpose through following technological means.

A quick mechanical connection structure comprises an upper sleeve, a lower sleeve, an inserted rod, a middle nut, a clamping piece assembly and an elastic element;

one end of the upper sleeve and one end of the lower sleeve are respectively provided with a rib penetrating hole for connecting the main rib; one end of the inserted rod is arranged in the upper sleeve; the middle nut is arranged in the lower sleeve, the elastic element is arranged in the lower sleeve, the clamping piece assembly is arranged between the elastic element and the middle nut, and one end of the clamping piece assembly is inserted into the middle nut through the elastic element; the other end of the inserted bar penetrates through the middle nut to be clamped with the clamping piece assembly, and is used for butting the upper sleeve with the lower sleeve;

the shape of the clamping piece assembly comprises an inclined plane section and a clamping platform; one end of the clamping piece component is an inclined plane section, and the other end of the clamping piece component is a clamping table; the clamping table extends into the elastic element, so that the insufficient connection strength with the inserted rod caused by the eccentricity of the clamping piece assembly is prevented, and the installation quality of the inserted rod is ensured; the elastic element is a spring with two end rings which are tightly ground, one end of the elastic element is positioned in the lower sleeve, and the other end of the elastic element is lapped with the clamping table.

Furthermore, a conical surface is arranged at one end of an inner hole of the middle nut, the inclined surface section is inserted into the middle nut and matched with the conical surface, and the length of the conical surface is greater than that of the inclined surface section.

Furthermore, the length of the inclined plane section is larger than the compression amount of the spring, so that the inner ring of the spring is tightly matched with the clamping table.

Furthermore, a plurality of annular teeth are arranged in the clamping piece assembly, and the other end of the inserted bar penetrates through the middle nut to be connected with part or all of the annular teeth in the clamping piece assembly.

Furthermore, the other end of the inserted bar is a knurled section, and the length of the knurled section is greater than that of the plurality of annular teeth inside the clamping piece assembly.

Further, the diameter of the other end of the inserted link increases progressively along the insertion direction; the diameters of a plurality of annular teeth in the clamping piece assembly are gradually increased along the inserting direction, and the taper alpha at the other end of the inserting rod is 0.5-5 degrees.

Further, the clamping piece subassembly comprises two piece at least annular circular arc spare, the clamping piece subassembly outside is equipped with at least round fixed slot, install the tight loop in the fixed slot for link a plurality of annular circular arc spare as an organic whole.

Furthermore, the clamping piece assembly is composed of at least two annular arc pieces, the annular arc pieces are magnetic elements, the upper portion of the clamping piece assembly is magnetically attracted with the middle nut, the lower portion of the clamping piece assembly is magnetically attracted with the elastic elements, the clamping piece assembly, the elastic elements and the middle nut form a whole, the installation is more convenient, an operator does not need to install the middle nut after installing the elastic elements and the clamping piece assembly one by one, and the quality hidden danger of installation is reduced.

Furthermore, the middle nut is a magnetic element, and the middle nut and the clamping piece component are magnetically attracted, so that the clamping piece component and the middle nut form a whole, and the installation is more convenient.

The prefabricated member with the quick mechanical connection structure comprises a plurality of main ribs, and the main ribs are positioned in the rib penetrating holes of the upper sleeve or the rib penetrating holes of the lower sleeve.

The beneficial effects of the utility model reside in that:

1. quick mechanical connection structure, through upper and lower sleeve, inserted bar, middle nut, clamping piece subassembly and elastic element realize that the prefab is connected with the high tolerance machinery of prefab, can exempt from the welding during on-the-spot installation.

2. Quick mechanical connection structure, be equipped with inclined plane section and ka tai through clamping piece subassembly appearance, the conical surface cooperation of inclined plane section and middle nut lower extreme makes the clamping piece be located telescopic centre down all the time, the ka tai can insert elastic element in, prevent because of the eccentric joint strength that leads to with the inserted bar of clamping piece subassembly is not enough to the installation quality of inserted bar has been ensured.

3. Quick mechanical connection structure, the inside a plurality of annular teeth that are equipped with of clamping piece subassembly, the inserted bar other end passes the part or whole annular tooth in middle nut and the clamping piece subassembly and is connected. The inserted bar other end is the knurl section, the length of knurl section is greater than the length of a plurality of annular teeth of clamping piece subassembly inside, can realize the connection of high tolerance.

4. In the rapid mechanical connection structure of the utility model, the diameter of the other end of the inserted link increases progressively along the inserting direction; the diameters of a plurality of annular teeth in the clamping piece assembly are gradually increased along the inserting direction, and the taper alpha at the other end of the inserting rod is 0.5-5 degrees, so that the inserting rod is tightly attached to the clamping piece and is more and more tightened.

5. Quick mechanical connection structure, elastic element is both ends circle and the flat spring of tight mill, makes the smooth upper portion of fixing at elastic element of clamping piece subassembly, prevents to influence the installation quality of inserted bar because of the slope of clamping piece subassembly. The lower platform surface of the elastic element is smoothly arranged on the lower end of the lower nut.

6. Quick mechanical connection structure, through establishing annular circular arc spare or middle nut into magnetic element, can make clamping piece subassembly, elastic element, middle nut form a whole, it is more convenient to install, nut in the middle of need not to install behind elastic element, the clamping piece subassembly one by one again, reduces the quality hidden danger of installation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described below, and the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an assembly view of the quick mechanical connection structure of the present invention.

Fig. 2 is a front view of the insert rod of the present invention.

Fig. 3 is a right side view of the insert rod of the present invention.

Fig. 4 is a front view of the clip assembly of the present invention.

Fig. 5 is a front view of the middle nut of the present invention.

Fig. 6 is a front view of the upper sleeve of the present invention.

Fig. 7 is a schematic view of a prefabricated member for installing the quick mechanical connection structure according to the present invention.

In the figure:

1-upper sleeve; 2-lower sleeve; 3-inserting a rod; 3-1-a limiting part; 3-2-a guide surface; 4-middle nut; 4-1-cone; 5-a clip assembly; 5-1-a bevel section; 5-2-clamping; 5-3-guiding slope; 5-4-fixed groove; 6-an elastic element; 7-reinforcing steel bars; 8-pile hoops; 9-sheath.

Detailed Description

The invention will be further described with reference to the drawings and the following examples, but the scope of the invention is not limited thereto.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the fast mechanical connection structure of the present invention comprises an upper sleeve 1, a lower sleeve 2, an insertion rod 3, a middle nut 4, a clip assembly 5 and an elastic element 6; one end of the upper sleeve 1 and one end of the lower sleeve 2 are respectively provided with a rib penetrating hole connected with a main rib 7; one end of the inserted bar 3 is arranged in the upper sleeve 1; the middle nut 4 is arranged in the lower sleeve 2, the elastic element 6 is arranged in the lower sleeve 2, the clamping piece assembly 5 is arranged between the elastic element 6 and the middle nut 4, and one end of the clamping piece assembly 5 is inserted into the middle nut 4 through the elastic element 6; the other end of the inserted bar 3 penetrates through the middle nut 4 to be clamped with the clamping piece assembly 5, and the inserted bar is used for enabling the upper sleeve 1 to be in butt joint with the lower sleeve 2. The utility model discloses an upper sleeve 1, lower sleeve 2, inserted bar 3, middle nut 4, clamping piece subassembly 5 and elastic element 6 realize that the prefab is connected with the high tolerance machinery of prefab, can exempt from the welding during field installation.

As shown in fig. 4, the clip assembly 5 has an outer shape including a ramp section 5-1 and a catch 5-2; one end of the clamping piece component 5 is an inclined plane section 5-1, and the other end of the clamping piece component 5 is a clamping table 5-2; and a cylindrical section is arranged between the inclined section 5-1 and the clamping table 5-2. The clamping table 5-2 extends into the elastic element 6. As shown in fig. 5, one end of the inner hole of the middle nut 4 is provided with a conical surface 4-1, the inclined surface section 5-1 is inserted into the middle nut 4 to be matched with the conical surface 4-1, the inclined surface section and the clamping table are arranged on the appearance of the clamping piece assembly 5, the inclined surface section 5-1 is matched with the conical surface at the lower end of the middle nut 4, so that the clamping piece assembly 5 is always positioned in the middle of the lower sleeve, the clamping table can be inserted into the elastic element, the insufficient connection strength of the clamping piece assembly 5 and the inserted rod caused by eccentricity is prevented, and the installation quality of the inserted rod is ensured. The length of the conical surface 4-1 is greater than that of the inclined surface section 5-1, so that the inclined surface section 5-1 can be ensured to completely enter the conical surface 4-1, and the clamping piece assembly 5 can be ensured to clamp the inserted rod 3.

As shown in fig. 1, the elastic element 6 is a spring with two end rings and being ground flat, one end of the elastic element 6 is located in the lower sleeve 2, and the other end of the elastic element 6 is overlapped with the clamping table 5-2, so that the clip assembly 5 can be flatly fixed on the upper part of the elastic element 6, and the influence on the installation quality of the inserted bar due to the inclination of the clip assembly 5 can be prevented. The lower plane of the elastic element is flatly arranged in the lower sleeve 2. The length of the inclined plane section 5-1 is larger than the compression amount of the spring, so that the inner ring of the spring is tightly matched with the clamping table.

The clamping piece assembly 5 is composed of at least two annular arc pieces, at least one circle of fixing groove 5-4 is formed in the outer portion of the clamping piece assembly 5, and a fastening ring is installed in the fixing groove 5-4, so that the annular arc pieces can be connected into a whole.

As shown in fig. 1 and 4, a plurality of annular teeth are arranged inside the clip assembly 5, and the other end of the inserted bar 3 passes through the middle nut 4 to be connected with part or all of the annular teeth inside the clip assembly 5.

In the embodiment, the clamping piece assembly 5 is composed of at least two annular arc pieces which are magnetic elements, so that the upper part of the clamping piece assembly is magnetically attracted with the middle nut, the lower part of the clamping piece assembly is magnetically attracted with the elastic element, the clamping piece assembly, the elastic element and the middle nut form a whole, the installation is more convenient, an operator does not need to install the elastic element and the clamping piece assembly one by one and then install the middle nut, and the quality hidden danger of installation is reduced. Or the middle nut 3 is a magnetic element, so that the middle nut and the clamping piece component are magnetically attracted, the clamping piece component and the middle nut form a whole, and the installation is more convenient.

As shown in fig. 2 and 3, one end of the insert rod 3 is provided with a limiting part 3-1, and the limiting part 3-1 at least comprises two parallel matching surfaces. In the embodiment, the limiting part 3-1 is a regular hexagon or a regular octagon. The other end of the inserted bar 3 is a knurled section, and the length of the knurled section is greater than that of the annular teeth in the clamping piece assembly 5.

The diameter of the other end of the inserted link 3 increases progressively along the inserting direction; the diameter of a plurality of annular teeth inside the clip assembly 5 increases along the insertion direction. The other end of the bayonet 3 can be considered here as a reverse tapered rod, while the minor diameter of the annular tooth inside the clip assembly 5 is also a reverse tapered hole. Because the clamping piece assembly 5 is composed of at least two annular arc pieces, the annular arc pieces are connected into a whole by the fastening ring, when the inverted-cone-shaped rod of the inserted rod 3 is inserted into the clamping piece assembly 5, the elastic element 6 is compressed by the clamping piece assembly 5, so that the inclined plane section 5-1 is separated from the conical surface 4-1, at the moment, the front ends of the annular arc pieces are stressed to be opened, and the inverted-cone-shaped rod is inserted into the inverted-cone-shaped hole; at the moment, the inclined surface section 5-1 is contacted with the conical surface 4-1 through the counterforce of the elastic element 6, so that the other end of the inserted bar 3 is clamped with the clamping piece assembly 5. The taper alpha of the inverted conical rod is 0.5-5 degrees, or the taper angle of the inserted rod 3 is 80-89 degrees. In order to facilitate the insertion of the other end of the insertion rod 3 into the clamping piece assembly 5, the end face of the other end of the insertion rod 3 is provided with a guide surface 3-2, and a guide slope 5-3 is arranged in the clamping piece assembly 5.

As shown in fig. 7, the prefabricated member with the fast mechanical connection structure of the present invention comprises a plurality of main ribs 7, wherein the main ribs 7 are located in the rib penetrating holes of the upper sleeve 1 or the rib penetrating holes of the lower sleeve 2.

A sheath 9 is arranged on the pile hoop 8 of the prefabricated member, one side surface of the sheath 9 is connected with the pile hoop 8, and the other side surface of the sheath 9 is arranged on the upper sleeve 1 or the lower sleeve 2; the other side surface of the sheath 9 is provided with a mounting hole; the end face of the butt joint surface of the upper sleeve 1 or the lower sleeve 2 is provided with a stop opening, and the stop opening is a conical surface and is matched with the mounting hole, as shown in fig. 6 and 7. The protective sleeve 9 is L-shaped, and the included angle between the two side surfaces of the L-shaped protective sleeve 9 is 85-90 degrees.

It should be understood that although the specification has been described in terms of various embodiments, not every embodiment includes every single embodiment, and such description is for clarity purposes only, and it will be appreciated by those skilled in the art that the specification as a whole can be combined as appropriate to form additional embodiments as will be apparent to those skilled in the art.

The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A quick mechanical connection structure is characterized by comprising an upper sleeve (1), a lower sleeve (2), an inserted rod (3), a middle nut (4), a clamping piece assembly (5) and an elastic element (6);

one end of the upper sleeve (1) and one end of the lower sleeve (2) are respectively provided with a rib penetrating hole connected with a main rib (7); one end of the inserted rod (3) is arranged in the upper sleeve (1); the middle nut (4) is arranged in the lower sleeve (2), the elastic element (6) is arranged in the lower sleeve (2), the clamping piece assembly (5) is arranged between the elastic element (6) and the middle nut (4), and one end of the clamping piece assembly (5) is inserted into the middle nut (4) through the elastic element (6); the other end of the inserted rod (3) penetrates through the middle nut (4) to be clamped with the clamping piece assembly (5) and is used for enabling the upper sleeve (1) to be in butt joint with the lower sleeve (2);

the shape of the clamping piece component (5) comprises a slope section (5-1) and a clamping table (5-2); one end of the clamping piece component (5) is an inclined plane section (5-1), and the other end of the clamping piece component (5) is a clamping table (5-2); the clamping table (5-2) extends into the elastic element (6); the elastic element (6) is a spring with two end rings and a flat surface, one end of the elastic element (6) is positioned in the lower sleeve (2), and the other end of the elastic element (6) is lapped with the clamping table (5-2).

2. The quick mechanical connection structure according to claim 1, wherein one end of the inner hole of the middle nut (4) is provided with a conical surface (4-1), and the inclined surface section (5-1) is inserted into the middle nut (4) to be matched with the conical surface (4-1); the length of the conical surface (4-1) is greater than that of the inclined surface section (5-1).

3. The quick mechanical connection according to claim 1, characterized in that the length of the ramp section (5-1) is greater than the compression of the spring.

4. The fast mechanical connection structure of claim 1, characterized in that a plurality of annular teeth are arranged inside the clip assembly (5), and the other end of the inserted bar (3) passes through the middle nut (4) to be connected with part or all of the annular teeth inside the clip assembly (5).

5. The quick mechanical connection according to claim 4, characterized in that the other end of the bayonet (3) is a knurled section having a length greater than the length of the annular teeth inside the jaw assembly (5).

6. The quick mechanical connection according to claim 4, characterized in that the diameter of the other end of the bayonet (3) increases in the direction of insertion; the diameters of a plurality of annular teeth in the clamping piece assembly (5) are increased progressively along the insertion direction; the taper alpha at the other end of the inserted link (3) is 0.5-5 degrees.

7. The rapid mechanical connection structure according to claim 1, wherein the clip assembly (5) is composed of at least two circular arc members, at least one circle of fixing grooves (5-4) is formed on the exterior of the clip assembly (5), and a fastening ring is installed in the fixing grooves (5-4) for connecting the circular arc members into a whole.

8. The rapid mechanical connection according to claim 1, wherein the clip assembly (5) is composed of at least two circular arc pieces, the circular arc pieces being magnetic elements.

9. The quick mechanical connection according to claim 1, characterized in that the intermediate nut (4) is a magnetic element.

10. A prefabricated member having a rapid mechanical connection according to any one of claims 1 to 9, said prefabricated member comprising a plurality of main ribs (7), characterized in that said main ribs (7) are located in the rib-passing holes of said upper sleeve (1) or of said lower sleeve (2).