CN213625552U

CN213625552U - Integrated quick mechanical connection joint device

Info

Publication number: CN213625552U
Application number: CN202022254876.2U
Authority: CN
Inventors: 陈巧; 王伟; 赵鹏
Original assignee: Jiangsu Jianhua New Material Technology Co ltd; Jianhua Construction Materials China Co Ltd; Jiangsu Jianhua New Wall Material Co Ltd
Current assignee: Jiangsu Jianhua New Material Technology Co ltd; Jianhua Construction Materials China Co Ltd; Jiangsu Jianhua New Wall Material Co Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-07-06
Anticipated expiration: 2030-10-12

Abstract

The utility model provides a quick mechanical connection of integral type connects device. The device comprises an upper nut, a lower nut, an inserted rod, a limiting connecting sleeve, an elastic element, a sealing cylinder and a clamping cylinder, wherein threads are arranged on the lower part of the limiting connecting sleeve and the upper part of the sealing cylinder, the sealing cylinder is connected with the limiting connecting sleeve through the threads to form a whole, and a gap is reserved between the bottom end of the sealing cylinder and the bottom end of the lower nut; the lower part of the sealing cylinder is provided with a limiting table with a through hole, and the elastic element is placed on the limiting table; the clamping cylinder is placed above the elastic element, the clamping cylinder is of an integral hollow structure, a clamping table is arranged in an inner cavity at the upper part of the clamping cylinder along the circumferential direction, an opening is formed in the side surface of the clamping cylinder from top to bottom along the axial direction, and the opening is communicated with a middle hole of the clamping cylinder; the clamping head at the bottom of the inserted bar is inserted into the clamping cylinder and is buckled with the clamping table. The utility model discloses a device can effectively improve installation quality and the efficiency that the pile head is connected.

Description

Integrated quick mechanical connection joint device

Technical Field

The utility model relates to a building connection spare technical field especially relates to a quick mechanical connection of integral type connects device.

Background

At present, the precast pile used for the pile foundation of the building is mostly connected with the pile by adopting the form of electric welding and welding of end plates. The welding mode easily causes potential safety hazards of the connecting structure at the pile head of the precast pile. The mechanical connection joint device can lead the pile to be free from welding when being installed on site, and has the advantages of simple structure, high uplift bearing capacity, low manufacturing cost, high construction efficiency and the like.

In the Chinese patent CN101519876A, the name "no-shear fast strong-pull butt-joint fastener and butt-joint piece", a spring is arranged in a top-pull nut, the bottom end of the spring is placed on a clamping table or a heading of a steel bar heading, and a conical sleeve is placed at the top end of the spring. In fact, in the production process of the precast pile, the finished shape of the steel bar upset head is greatly different due to equipment or human reasons, the steel bar upset head is not in a completely symmetrical shape or the top end of the upset head is not completely planar. If the upset head is irregular, one side of the upset head directly contacts the inner wall of the top pull nut or the top end plane of the upset head inclines, so that the installation of the spring is inclined, the bottom end or the top end cannot be kept horizontal, and finally, a conical sleeve on the top end of the spring is inclined, and the installation is hidden danger. In addition, the structures of the above patents are all contacted by metal pieces, so that an integral closed space cannot be effectively formed, and the corrosion resistance of the joint is greatly reduced.

In the Chinese patent CN208578028U, entitled "a connecting joint device and a prestressed prefabricated member", a limit table, a limit nut, a spring and a buckle barrel are directly arranged in a nut. Although set up spacing platform and help keeping the level and smooth of detaining a section of thick bamboo bottom, when actual installation, if the spring unevenness of bottom, then at the insertion of inserted bar in-process, detain the unable simultaneous contact stop collar in bottom of a section of thick bamboo, lead to easily detaining a section of thick bamboo and receive the effect of eccentric force to can damage the ka tai of detaining a section of thick bamboo upper portion, greatly influence the connection quality that connects.

Chinese patent CN210395665U, entitled "resilient clip, mechanical connector and prefabricated construction combination" discloses a resilient clip, which comprises a base, two or more resilient sheets spaced on the base and distributed annularly, wherein the resilient sheets form an inner hook at one end far away from the base, and the resilient sheets form at least one radially outward convex section and/or at least one radially inward concave section. The elastic buckle barrel adopts the combination of a plurality of elastic sheets, so that the contact mode of the buckle barrel and the inserted link is point-type or section-type contact, the integral contact is not realized, and the tensile property of the buckle barrel is weakened to a certain extent. When a joint with very high tensile requirement is connected, the sizes of the buckling barrel and the sleeve are required to be increased for improving the tensile property of the joint so as to meet the requirement. Meanwhile, the elastic sheet adopts a convex-concave structure, and the diameter of the inner wall of the nut sleeve needs to be increased, so that the elastic sheet has enough deformation space in the insertion process of the inserted rod, otherwise, the connection of the joint has hidden trouble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick mechanical connection of integral type connects device can effectively improve the installation quality and the efficiency that the pile head is connected.

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:

an integrated quick mechanical connection joint device comprises an upper nut, a lower nut, an insertion rod, a limiting connecting sleeve, an elastic element, a sealing cylinder and a clamping cylinder, wherein the upper part of the insertion rod is arranged in the upper nut; the lower part of the sealing cylinder is provided with a limiting table with a through hole, and the elastic element is placed on the limiting table; the clamping cylinder is placed above the elastic element, the clamping cylinder is of an integral hollow structure, a clamping table is arranged in an inner cavity at the upper part of the clamping cylinder along the circumferential direction, an opening is formed in the side surface of the clamping cylinder from top to bottom along the axial direction, and the opening is communicated with a middle hole of the clamping cylinder; the clamping head at the bottom of the inserted bar is inserted into the clamping cylinder and is buckled with the clamping table.

Furthermore, the lower part of the inserted bar is sequentially provided with a conical section, a cylindrical section and the chuck; the limiting connecting sleeve is of a through hole structure, an upper oblique line section for containing the conical section of the inserting rod, a straight line section for containing the cylindrical section of the inserting rod and a lower oblique line section are sequentially arranged in the through hole, and the lower oblique line section is in contact with the upper end face of the clamping cylinder.

Furthermore, the length ratio of the cylindrical section to the conical section of the inserted rod is 1: 2-3.

Further, the height of the clamping cylinder is less than 10 mm; the height of the cylindrical section of the inserted bar is more than 1.1 times higher than that of the clamping cylinder.

Furthermore, the outer diameter of the lower part of the limiting connecting sleeve is smaller than that of the upper part of the limiting connecting sleeve; the outer diameter of the sealing cylinder is smaller than that of the upper part of the limiting connecting sleeve; and a gap is reserved between the outer wall of the sealing cylinder and the inner wall of the lower nut.

Furthermore, the openings are positioned on two sides of the inner wall and the outer wall of the clamping cylinder in a staggered mode along the radial direction; or the two ports of the opening, which are positioned at the upper end and the lower end of the clamping cylinder, are arranged in a staggered way along the axial direction; or both of the above-mentioned offset arrangements.

Further, the cross section of the opening is in a sawtooth shape.

Furthermore, an elastic ring is arranged on the outer portion of the clamping cylinder along the circumferential direction.

Furthermore, a guide slope is arranged on the upper end face of the clamping cylinder and is in contact with a lower slope section of the limiting connecting sleeve; the included angle between the lower inclined line segment of the limiting connecting sleeve and the horizontal line is less than or equal to 45 degrees.

Furthermore, the connecting joint device further comprises a sealing ring, wherein the sealing ring is arranged at the joint of the upper nut and the lower nut, or at the joint of the inserted rod and the limiting connecting sleeve, or at the joints of the two.

Compared with the prior art, the utility model discloses mechanical connection connects device has following beneficial effect:

(1) the utility model discloses the mechanical connection of stake and stake is realized through nut, inserted bar, a card section of thick bamboo isotructure to the piecing devices, has simple structure, resistance to plucking and bears the weight of the dynamic height, the cost is low, the efficiency of construction is high, exempts from welded characteristics during the field installation.

(2) Through setting up spacing adapter sleeve and elastic element, can make middle card section of thick bamboo fix in the spacing space of setting for, prevent in the installation, detain a section of thick bamboo and take place lateral shifting to the installation quality of inserted bar has been ensured.

(3) The lower part of the limiting connecting sleeve and the upper part of the sealing cylinder are provided with threads, so that the limiting connecting sleeve and the sealing cylinder are connected to form a whole and the clamping cylinder is fixed between the limiting connecting sleeve and the sealing cylinder, and only the inserted rod, the sealing cylinder, the middle clamping cylinder and the limiting connecting sleeve which form the whole are required to be installed during field installation, so that the workload of field workers is greatly reduced.

(4) A gap is reserved between the bottom end of the sealing barrel and the bottom end of the lower nut, so that a certain space interval is kept between the bottom end of the sealing barrel and the upset head, and therefore when the joint is installed on site, even if the lower nut causes impurities such as soil to enter the lower nut due to carrying or the processing quality error of the upset head is large, the installation quality of the joint cannot be influenced, and the influences of weather, environment and the like outside the site are greatly reduced.

(5) The inserted bar is provided with the cylindrical section and the conical section, the length ratio of the cylindrical section to the conical section is 1: 2-3, stress concentration at the joint of the top and the bottom of the inserted bar can be greatly reduced, and the strength of the inserted bar is ensured.

(6) Set up a calorie of section of thick bamboo into open structure, be the wholeness contact mode when contacting with the inserted bar, furthest has ensured the tensile properties of a calorie of section of thick bamboo, when connecting to the very high joint of tensile requirement, need not increase a calorie of section of thick bamboo and telescopic size can satisfy the requirement.

(7) Through setting up the sealing washer, form holistic enclosure space behind the messenger joint connection, promote the durability of joint when using in the anti-corrosion geology.

Drawings

FIG. 1 is a schematic view of the device according to the present invention in a connected state;

fig. 2 is a schematic structural diagram of the device of the present invention in an unconnected state.

FIG. 3 is a schematic structural diagram of the cartridge in the embodiment.

FIG. 4 is a schematic diagram of several structures of the cartridge in the embodiment, (a) and (b) are respectively a perspective view and a sectional view of a C-shaped opening, (C) and (d) are respectively a perspective view and a sectional view of the inside and the outside of the opening which are arranged in a staggered manner, (e) and (f) are respectively a perspective view and a sectional view of the upper end and the lower end of the opening which are arranged in a staggered manner, and (g) and (h) are respectively a perspective view and a sectional view of the opening which is in a zigzag.

In the figure, 1-upper nut, 2-lower nut, 3-inserted rod, 4-limiting connecting sleeve, 5-clamping cylinder, 6-sealing cylinder, 7-elastic element, 8-sealing cylinder internal thread, 9-limiting connecting sleeve external thread, 10 elastic ring, 11-limiting table, 12-through hole, 13-upper oblique line section, 14-straight line section, 15-lower oblique line section, 16-steel bar, 17-conical section, 18-cylindrical section, 19-clamping head, 20-clamping table, 21-opening, 22-bottom support, 23-guiding slope and 24-sealing ring.

Detailed Description

The invention will be elucidated below on the basis of an embodiment shown in the drawing. The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is not limited by the following description of the embodiments, but is defined only by the scope of the claims, and includes all modifications that have the same meaning as the scope of the claims and are within the scope of the claims.

The embodiment provides an integrated quick mechanical connection joint device, which comprises an upper nut 1, a lower nut 2, an inserted bar 3, a limiting connecting sleeve 4, a clamping cylinder 5, a sealing cylinder 6 and an elastic element 7. The head of the inserted rod 3 is a cylindrical head provided with a limiting thread and is connected with the internal thread of the upper nut 1; the lower part of the inserted bar 3 is sequentially provided with a conical section 17, a cylindrical section 18 and a bottom chuck 19, and in order to ensure the strength of the inserted bar 3, the length ratio of the cylindrical section 18 to the conical section 17 is preferably 1: 2-3. The cylindrical section 18 is inserted into the middle hole of the clamping cylinder 5, in order to avoid potential safety hazard, the height of the cylindrical section 18 is set to be higher than that of the clamping cylinder 5, so that the cylindrical section 18 is completely in linear contact with the inner cavity of the clamping cylinder 5, preferably, the height of the cylindrical section 18 is at least 1.1 times higher than that of the clamping cylinder 5, and the main reason is that construction errors are considered, so that an error adjustment space is 10%.

The limiting connecting sleeve 4, the clamping cylinder 5, the sealing cylinder 6 and the elastic element 7 are arranged in the lower nut 2. The upper part of the limiting connecting sleeve 4 is provided with an external thread which is connected with the internal thread of the lower nut 2. The lower part of the limit connecting sleeve 4 is provided with an external thread or an internal thread, and correspondingly, the upper part of the sealing cylinder 6 is provided with an internal thread or an external thread, so that the limit connecting sleeve 4 and the sealing cylinder 6 are connected together into a whole through the threads. In this embodiment, the inside of the lower part of the limiting connection sleeve 4 is provided with an external thread 9, which is connected with an internal thread 8 arranged on the upper part of the sealing cylinder 6, the external diameter of the lower part of the limiting connection sleeve 4 is smaller than the external diameter of the upper part of the limiting connection sleeve 4, and the external diameter of the sealing cylinder 6 is smaller than the external diameter of the upper part of the limiting connection sleeve 4. A gap is reserved between the outer wall of the sealing cylinder 6 and the inner wall of the lower nut 2, and a gap is also reserved between the bottom end of the sealing cylinder 6 and the bottom end of the lower nut 2. The limiting connecting sleeve 4 is of a through hole structure, an upper oblique line section 13 used for containing an inserting rod conical section 17, a straight line section 14 used for containing an inserting rod cylindrical section 18 and a lower oblique line section 15 are sequentially arranged in the through hole, and the lower oblique line section 15 is in contact with the upper end face of the clamping table 20. Preferably, the included angle between the lower inclined line segment 15 and the horizontal line is less than or equal to 45 degrees, so that the contact part can bear the maximum tensile force, and the mechanical property of the limiting connecting sleeve 4 is fully exerted.

The lower part of the sealing cylinder 6 is provided with a limiting table 11 with a through hole 12, and the elastic element 7 is placed on the limiting table 11 and is positioned between the limiting table 11 and the bottom end of the clamping cylinder 5. A clamping table 20 is arranged in the inner cavity of the upper end of the clamping cylinder 5 along the circumferential direction, and the clamping head 19 of the insert rod 3 is inserted into the clamping cylinder 5 and is buckled with the clamping table 20.

The structure of the clamping cylinder 5 can adopt an integrated structure or a split structure. The upper end surface of the clamping cylinder 5 of the embodiment is provided with a guide slope 23 which is beneficial to the insertion of the inserted rod 3. The guide slope 23 is in contact with the lower slope line segment 15 of the limiting connecting sleeve 4, and the included angle between the guide slope 23 and the vertical line is set to be 45 degrees in the embodiment. The bottom of the clamping cylinder 5 protrudes outwards along the circumferential direction to form a bottom support 22, and the outer part of the clamping cylinder 5 is provided with an elastic ring 10 along the circumferential direction. The side surface of the clamping cylinder 5 is provided with an opening 21 communicated with the middle hole of the clamping cylinder 5 from top to bottom along the axial direction. Among them, there are various shapes of the opening 21, and referring to fig. 4, the embodiment is exemplified as follows:

as shown in the drawings (a) and (b), the card cylinder 5 is provided with a flat linear opening from top to bottom along the side surface parallel to the axis, and the whole card cylinder 5 is in a C shape. As shown in the figures (c) and (d), the side surface of the clamping cylinder 5 is provided with an oblique line opening from top to bottom, so that the opening is arranged at one side of the inner wall of the clamping cylinder 5 and at one side of the outer wall of the clamping cylinder 5 in a staggered manner. As seen from the top view, the inner side and the outer side of the opening are not in the same straight line in the radial direction, so that the clamping cylinder 5 can be uniformly stressed in the whole circumferential direction when being pulled, and the condition of the defect can not occur. As shown in the figures (e) and (f), the side surface of the clamping cylinder 5 is provided with a straight line opening from top to bottom, but one end of the opening at the upper end of the clamping cylinder and one end of the opening at the lower end of the clamping cylinder are arranged in a staggered mode, namely the upper end surface and the lower end surface of the opening are not on the same straight line in the axial direction. The clamping cylinder 5 can be more easily opened when the insertion rod 3 is inserted, so that the clamping head 19 can smoothly enter the inner cavity of the clamping cylinder 5 to form a connecting structure. As shown in the figures (g) and (h), the side surface of the clamping cylinder 5 is provided with an oblique line opening from top to bottom, and the oblique line opening is in a zigzag shape with different directions. Of course, one skilled in the art can combine any of the above shapes as desired.

In order to improve the corrosion resistance of the joint, the joint device of the present embodiment is further provided with a sealing ring 24, and the sealing ring 24 may be disposed at the joint of the upper nut 1 and the lower nut 2, or at the joint of the insert rod 3 and the limiting connection sleeve 4, or at both of the joints.

With reference to fig. 1 and 2, in the device of this embodiment, the pier heads of the steel bars 16 are respectively installed in the upper nut 1 and the lower nut 2, then the elastic element 7 is placed on the limiting table 11 at the bottom of the sealing cylinder 6, then the clamping cylinder 5 is placed above the elastic element 7, the limiting connection sleeve 4 and the sealing cylinder 6 are connected into a whole by screw threads, and the limiting connection sleeve 4, the clamping cylinder 5, the elastic element 7 and the sealing cylinder 6 which are formed into a whole are installed in the lower nut 2; next, the insert rod 3 is mounted in the upper nut 1, the packing 24 is mounted on the insert rod 3, and finally the insert rod 3 is inserted into the lower nut 2. After the clamping head 19 of the inserted bar 3 passes through the middle hole of the clamping cylinder 5, the inserted bar 3 is buckled with the clamping table 20, and the inserted bar 3 is tightly connected with the clamping cylinder 5 under the locking of the clamping cylinder 5, so that the installation of the joint is realized.

Claims

1. An integrated quick mechanical connection joint device comprises an upper nut, a lower nut, an insertion rod, a limiting connecting sleeve, an elastic element, a sealing cylinder and a clamping cylinder, wherein the upper part of the insertion rod is arranged in the upper nut; the lower part of the sealing cylinder is provided with a limiting table with a through hole, and the elastic element is placed on the limiting table; the clamping cylinder is placed above the elastic element, the clamping cylinder is of an integral hollow structure, a clamping table is arranged in an inner cavity at the upper part of the clamping cylinder along the circumferential direction, an opening is formed in the side surface of the clamping cylinder from top to bottom along the axial direction, and the opening is communicated with a middle hole of the clamping cylinder; the clamping head at the bottom of the inserted bar is inserted into the clamping cylinder and is buckled with the clamping table.

2. The one-piece quick mechanical connector assembly of claim 1 wherein said lower portion of said shank is provided with a tapered section, a cylindrical section and said clamp in sequence; the limiting connecting sleeve is of a through hole structure, an upper oblique line section for containing the conical section of the inserting rod, a straight line section for containing the cylindrical section of the inserting rod and a lower oblique line section are sequentially arranged in the through hole, and the lower oblique line section is in contact with the upper end face of the clamping cylinder.

3. The one-piece rapid mechanical connector assembly according to claim 2, wherein the ratio of the length of the cylindrical section to the length of the tapered section of the bayonet is 1:2 to 3.

4. The one-piece quick connect coupler apparatus of claim 2, wherein said cartridge has a height of less than 10 mm; the height of the cylindrical section of the inserted bar is more than 1.1 times higher than that of the clamping cylinder.

5. The integrated rapid mechanical connection joint device according to claim 1, wherein the outer diameter of the lower part of the limit connecting sleeve is smaller than the outer diameter of the upper part of the limit connecting sleeve; the outer diameter of the sealing cylinder is smaller than that of the upper part of the limiting connecting sleeve; and a gap is reserved between the outer wall of the sealing cylinder and the inner wall of the lower nut.

6. The one-piece mechanical quick connect coupling device of claim 1, wherein said openings are radially offset on either side of the inner and outer walls of said cartridge; or the two ports of the opening, which are positioned at the upper end and the lower end of the clamping cylinder, are arranged in a staggered way along the axial direction; or both of the above-mentioned offset arrangements.

7. The one-piece quick connect coupler apparatus of claim 5, wherein said opening is serrated in cross-section.

8. The one-piece quick connect coupling device of claim 1, wherein said snap-fit cylinder is provided with an elastic ring on its exterior in a circumferential direction.

9. The integrated fast mechanical connection joint device according to claim 1, wherein the upper end surface of the clamping cylinder is provided with a guide slope, and the guide slope is in contact with a lower slope segment of the limiting connection sleeve; the included angle between the lower inclined line segment of the limiting connecting sleeve and the horizontal line is less than or equal to 45 degrees.

10. The integrated fast mechanical connection joint device according to claim 1, further comprising a sealing ring, wherein the sealing ring is disposed at a joint of the upper nut and the lower nut, or at a joint of the insertion rod and the limiting connection sleeve, or at both joints.