CN219909359U - Error adaptation type connection node - Google Patents

Abstract

The utility model relates to an error adaptive type connecting node, belongs to the technical field of connecting nodes, and solves the problem that the error adaptive type connecting node in the prior art does not have multi-directional error adaptive capacity. The utility model comprises a connecting sleeve, a connecting pin shaft and a locking piece, wherein the opening at the lower end of an inner cavity of the connecting sleeve is smaller than the opening at the upper end of the inner cavity, the wall of the inner cavity is an inclined surface, the inclined surface is an arc surface or is formed by connecting a plurality of inclined planes, a plurality of inclined sliding grooves are uniformly distributed on the inclined surface, the locking piece is arranged in the inclined sliding grooves and can move in the inclined sliding grooves, and after one end of the connecting pin shaft enters the inner cavity of the connecting sleeve, the locking piece can be abutted against and locked to adapt to errors. According to the utility model, the movements of the locking pieces in the respective inclined sliding grooves are independent and do not affect each other, and the locking pieces can be contacted with and abutted against the connecting pin shaft at any position of the inclined sliding grooves, so that multidirectional error adaptation is realized.

Description

Error adaptation type connection node

Technical Field

The utility model relates to the technical field of connecting nodes, in particular to an error-adaptive connecting node.

Background

With the development of modern industrial technology, a building house can be manufactured in batches as a machine production. Fabricated and modular buildings have evolved. The assembled building is formed by transferring a large amount of field operation work in the traditional building mode to a factory, processing and manufacturing building components and accessories (such as floors, wallboards, stairs, balconies and the like) in the factory, transporting to a building construction site, and assembling and installing the building on site in a reliable connection mode. Modular construction is an emerging building architecture that uses each room as a modular unit, prefabricated in a factory, transported to the site after completion and assembled into a building block by reliable connection.

The connecting nodes are unobtainable parts in the assembled building and the module building, the integral hoisting characteristics of the module building determine the requirements of high precision and easy assembly of construction and construction, the current connecting technology adopts a welding or traditional high-strength bolt connection mode, but the problems of limited operation space, higher requirements on the technical level of workers and the like are faced, and the existing error adaptation type nodes generally only aim at specific directions and do not have multi-directional error adaptation capability due to more or less errors in the manufacturing of building components or module units.

Disclosure of Invention

In view of the above analysis, an embodiment of the present utility model is directed to providing an error adaptive connection node, so as to solve the problem that the existing error adaptive connection node does not have multi-directional error adaptive capability.

The utility model provides an error-adaptive connecting node which comprises a connecting sleeve, a connecting pin shaft and a locking piece, wherein an opening at the lower end of an inner cavity of the connecting sleeve is smaller than an opening at the upper end of the inner cavity, the wall of the inner cavity is an inclined surface, the inclined surface is an arc surface or is formed by connecting a plurality of inclined planes, a plurality of inclined sliding grooves are uniformly distributed on the inclined surface, the locking piece is arranged in the inclined sliding grooves and can move in the inclined sliding grooves, and one end of the connecting pin shaft can be abutted against the locking piece to be locked so as to adapt to errors after entering the inner cavity of the connecting sleeve.

Further, when the inclined surface is formed by connecting a plurality of inclined planes, the inclined angle of the inclined sliding groove is consistent with that of the inclined planes, and each inclined plane is provided with one inclined sliding groove.

Further, the connecting sleeve is of a columnar structure, and the outer contour of the cross section of the columnar structure is round or regular polygon.

Further, an annular groove is formed in the upper portion of the inner cavity of the connecting sleeve, and the top of the inclined sliding groove is communicated with the annular groove.

Further, the width of the notch of the inclined chute is smaller than the minimum dimension of the inside of the chute in the direction parallel to the notch.

Further, the connecting pin shaft is a pin or a taper pin, and the cross section of the pin or the taper pin is round or regular polygon.

Further, a chamfer is arranged at the top of the connecting pin shaft.

Further, a detachable top cover is arranged at the top of the connecting sleeve.

Further, one end of the connecting pin shaft is provided with threads.

Further, the inclined angle between the inclined chute and the axis of the connecting sleeve can enable the locking piece in the inclined chute to slide and be self-locked.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

(1) According to the error adaptation type connecting node, the connecting sleeve and the connecting pin shaft are respectively fixed with the connected structure, the inclined inner wall of the connecting sleeve is provided with the plurality of inclined sliding grooves, the locking piece is arranged in the inclined sliding grooves and can move along the inclined sliding grooves, the outer wall of the connecting pin shaft is in contact with the locking piece and can be locked, the plurality of locking pieces are independent in movement in the respective inclined sliding grooves and do not affect each other, the locking piece can be in contact with and abut against the connecting pin shaft at any position of the inclined sliding grooves, multi-directional error adaptation is realized, the structure of the error adaptation type connecting node is simple, the functions of the error adaptation type connecting node can be realized only by adopting the three parts of the connecting sleeve, the connecting pin shaft and the locking piece, and the self-adaptation of errors can be realized by utilizing the self-locking principle of the locking piece, so that the error adaptation type connecting node is ingenious in design and convenient to use.

(2) According to the utility model, the opening of the inclined chute is in an eight shape, namely, the width of the notch of the inclined chute perpendicular to the contour line of the inclined surface direction of the chute is smaller than the minimum dimension of the inside of the chute in the direction parallel to the notch, and the sliding block can be limited to slide in the inclined chute without being separated from the opening side of the inclined chute.

(3) The error-adaptive connecting node can realize error-adaptive connection, can effectively transfer the tensile force and shearing force of the node, has a simple connecting method and convenient disassembly, and greatly improves the connecting speed and efficiency of a construction site.

In the utility model, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.

FIG. 1 is a schematic diagram of an error-adaptive connection node according to an embodiment;

FIG. 2 is a schematic view of an embodiment of a retaining member and coupling sleeve mounting structure;

fig. 3 is a schematic diagram illustrating a connection state between an error-adaptive connection node and a lower connected structure according to an embodiment.

Reference numerals:

100-connecting the sleeve; 101-inclined plane; 102-opening; 103-oblique sliding grooves; 104-an annular groove; 105-top cover; 200-connecting pin shafts; 300-locking piece; 301-a first side; 302-a second side; 303-a third side; 304-fourth side; 305-top surface; 306-bottom surface.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

In a specific embodiment of the present utility model, as shown in fig. 1, an error-adaptive connection node is disclosed, which includes a connection sleeve 100, a connection pin 200 and a locking member 300, wherein the wall of an inner cavity of the connection sleeve 100 is an inclined surface 101, an opening 102 is provided at the bottom of the connection sleeve 100, the opening 102 is communicated with the inner cavity of the connection sleeve 100, a plurality of (i.e. 2 or more) inclined sliding grooves 103 are uniformly distributed along the height direction of the connection sleeve 100 in the circumferential direction of the inner cavity wall, the locking member 300 is disposed in the inclined sliding grooves 103, and can move in the inclined sliding grooves 103, and when one end of the connection pin 200 passes through the opening 102 and enters the inner cavity of the connection sleeve 100, the locking member 300 can be locked against and adapt to errors.

It should be noted that, the normal line perpendicular to the normal line of the connecting pin 200 or the normal line of the contact surface of the locking member 300 and the connecting pin 200, where the contact point of the locking member 300 and the connecting pin 200 is located, and the inclined surface normal line of the inclined chute 103 are included in the friction angle range between the locking member 300 and the inclined chute 103. The friction coefficient between the locking piece 300 and the material of the connecting pin shaft 200 is not smaller than the friction coefficient between the locking piece 300 and the material of the inclined chute 103.

In practice, the upper end of the connecting pin shaft 200 enters the inner cavity of the connecting sleeve 100 from the opening 102 arranged at the bottom of the connecting sleeve 100, at this time, the locking member 300 is located at the initial position, namely, the bottom of the inclined sliding groove 103, and part of the connecting pin shaft 200 entering the inside of the connecting sleeve 100 contacts the locking member 300 and pushes the locking member 300 to move upwards along the inclined sliding groove 103, because the inclined sliding grooves 103 are in an open radial shape, the diameter of a virtual circle formed at the position where the locking member 300 moves upwards is larger, when the diameter of the virtual circle formed at the inner side of the locking member 300 is larger than or equal to the diameter of the contact position of the locking member 300 with the connecting pin shaft 200, the end of the connecting pin shaft 200 exceeds the locking member 300, after the connecting pin shaft 200 moves in place, the locking member 300 stops moving and contacts with the outer surface of the connecting pin shaft 200 under the action of gravity, and because the resultant force received by the locking member 300 is within the friction angle, the locking member 300 and the connecting pin shaft 200 can be self-locked, and because the locking member 300 in each inclined sliding groove 103 is mutually independent, can be abutted against the connecting pin shaft 200 at any position of the inclined sliding groove 103, and thus the connecting joint can adapt to the manufacturing error of the connecting sleeve and the connecting pin shaft 200 and the connecting sleeve and the connecting pin shaft 200.

Compared with the prior art, the error adaptation type connected node that this embodiment provided, connecting sleeve and connecting pin are fixed with by connection structure respectively, be equipped with a plurality of slant spouts on connecting sleeve's the slope inner wall, the retaining member is located in the slant spout and can follow slant spout motion, connecting pin's outer wall and retaining member contact and can lock, because the motion of retaining member in respective slant spout is independent, do not influence each other, the retaining member can contact and support tightly with connecting pin in the optional position of slant spout, multi-direction error adaptation has been realized, and error adaptation type connected node's simple structure, only adopt connecting sleeve, connecting pin and retaining member three part can realize its function, utilize the self-locking principle of retaining member to realize the self-adaptation of error, and design benefit, convenient to use.

The inner cavity of the connecting sleeve 100 has a structure with a small lower end opening and a large upper end opening, and the inner cavity can be in a circular truncated cone-shaped structure, namely, the inclined surface 101 is an arc surface, the small-diameter bottom surface of the circular truncated cone-shaped structure is close to the bottom of the connecting sleeve 100, and the large-diameter bottom surface of the circular truncated cone-shaped structure is close to the top of the connecting sleeve 100, in other words, the circular truncated cone-shaped structure is an inverted circular truncated cone. The wall of the inner cavity can also be a plane instead of an arc surface, namely, the wall of the inner cavity is formed by a plurality of identical inclined planes, the inclined plane 101 is formed by connecting a plurality of inclined planes, the lower inner cavity of the structure is of an inverted cone table-shaped structure, and the upper bottom surface and the lower bottom surface of the inverted cone table-shaped structure are both regular polygons. The number of the edges of the regular polygon on the upper bottom surface and the number of the regular polygon on the lower bottom surface of the inverted frustum-shaped structure are equal and are opposite.

When the inclined surface 101 is an arc surface (side surface of the circular truncated cone), the inclined sliding grooves 103 are arranged on the arc surface along the height direction of the connecting sleeve 100, the inclined angles of the inclined sliding grooves 103 and the arc surface are consistent, a plurality of inclined sliding grooves 103 are uniformly distributed along the circumferential direction of the inclined surface 101, and preferably, 8 inclined sliding grooves 103 are arranged.

When the inclined surface 101 is formed by connecting a plurality of inclined planes, the inclined sliding grooves 103 are arranged on the inclined planes along the height direction of the connecting sleeve 100, the inclined angles of the inclined sliding grooves 103 and the inclined planes are consistent, and the number of the inclined sliding grooves 103 is equal to that of the inclined planes, namely, one inclined sliding groove 103 is arranged on each inclined plane.

In this embodiment, when the inclined plane 101 is formed by connecting a plurality of inclined planes, the inclined chute 103 radiates outward around the axis of the connecting sleeve 100 when seen from the end of the connecting sleeve 100.

The connection sleeve 100 has a cylindrical structure, the outer profile of the cross section of which is circular or regular polygon, and preferably the connection sleeve 100 has a cylindrical structure. The surface perpendicular to the axis of the connection sleeve 100 is a cross section.

It should be noted that the bottom of the connection sleeve 100 is provided with an opening 102, and the opening 102 is used as an opening of an inner cavity of the connection sleeve 100, so that the connection pin 200 can be assembled conveniently, and the opening 102 can accommodate the connection pin 200, so that the connection pin 200 can move into the inner cavity of the connection sleeve 100. Preferably, the opening 102 is a circular hole having a diameter larger than that of the connection pin 200.

Considering that the locking member 300 is located in the inclined chute 103 to move, in order to prevent the locking member 300 from falling from the bottom of the connection sleeve 100, the bottom of the inclined chute 103 does not penetrate the bottom surface of the connection sleeve 100. In order to facilitate the placement of the locking member 300 into the inclined chute 103, the upper portion of the inner cavity of the connecting sleeve 100 is provided with an annular groove 104, the top of the inclined chute 103 is communicated with the annular groove 104, the lateral groove depth of the annular groove 104 is greater than that of the inclined chute 103, and when the locking member 300 needs to be placed into the inclined chute 103, the locking member is placed from the top of the inclined chute 103.

In order to prevent the locking member 300 from being separated from the inclined chute 103, the locking member 300 is ensured to stably move in the inclined chute 103, the inner contour of the locking member 300 is in fit with the inclined chute 103, and the plane projection of the outer contour of the locking member 300 is positioned on a concentric circle of the center of the bottom opening 102 of the connecting sleeve 100. In order to meet the expected installation error requirement, the difference between the diameter of the circumscribed circle of the plane projection of the outline line of the outermost edge of the initial position of all the locking pieces 300 in the inclined chute 103 and the diameter of the inscribed circle of the opening 102 at the bottom of the connecting sleeve 100 is not less than 2 times of the allowable deviation value of unidirectional installation of the connecting node.

The locking piece 300 is a sliding block or a ball, when the locking piece 300 is a sliding block, the inner side profile of the sliding block is attached to the inclined sliding groove 103 in size, the plane projection of the outer profile line of the sliding block is positioned on a concentric circle of the center of the opening 102, and the difference between the diameter of the circumscribed circle of the plane projection of the outermost edge profile line of the initial position of all sliding blocks in the inclined sliding groove 103 and the diameter of the opening 102 is not smaller than 2 times of the allowable deviation value of unidirectional installation of the connecting node.

Specifically, referring to fig. 1 and 2, the slider includes a first side 301, a second side 302, a third side 303, a fourth side 304, a top surface 305, and a bottom surface 306, the first side 301 and the second side 302 are opposite, the third side 303 and the fourth side 304 are opposite, the first side 301, the second side 302, and the third side 303 are in contact with an inner wall of the diagonal chute 103, and the fourth side 304 is in contact with a cylindrical surface of the connecting pin 200. The first side 301 and the second side 302 are spaced apart at a greater distance on the third side 303 than on the fourth side 304. In other words, the first side 301 and the second side 302 are non-parallel surfaces that are drawn together laterally and medially near the connecting pin 200.

In this embodiment, since the slider is adapted to the diagonal sliding groove 103, the opening of the diagonal sliding groove 103 is in an "eight" shape, that is, the width of the slot opening of the diagonal sliding groove 103 is smaller than the minimum dimension of the inside of the sliding groove in the direction parallel to the slot opening, and the slider can be limited to slide in the diagonal sliding groove 103 without being separated from the opening side of the diagonal sliding groove 103.

In another possible solution of this embodiment, the first side 301 and the second side 302 are parallel, grooves are formed on both the first side 301 and the second side 302, and protrusions are formed on corresponding sidewalls of the diagonal chute 103, and the protrusions are adapted to the grooves, so as to ensure that the slider slides stably in the diagonal chute 103.

The definition of top and bottom of the slider is the same as that of the connection sleeve 100, that is, when the axis of the connection sleeve 100 is perpendicular to the horizontal plane, the upper portion is the top and the lower portion is the bottom.

When the locking member 300 is a ball, the contour of the ball is fit with the size of the oblique chute 103, the plane projection of the contour line of the ball is located on the concentric circle of the center of the opening 102, and the difference between the diameter of the circumscribed circle of the plane projection of the contour line of the outermost edge of all the balls in the oblique chute 103 and the diameter of the opening 102 is not less than 2 times of the allowable deviation value of unidirectional installation of the connection node. At this time, the wall surface of the inclined chute 103 is an arc surface, the arc surface is attached to the balls, and the cross section of the inclined chute 103 is a plurality of semicircular arcs, so that the balls can be restricted to roll in the inclined chute 103 without being separated from the opening of the inclined chute 103.

In this embodiment, the sliding block or the ball will contact with the connection pin 200 while sliding or rolling in the oblique chute 103; when the sliding block or the ball stops moving in the inclined chute 103, the sliding block or the ball is locked against the connecting pin 200.

It should be noted that, the included angle between the inclined chute 103 and the vertical height direction satisfies the sliding self-locking condition of the sliding block or the ball in the inclined chute 103.

Considering that the balls are in point-to-point contact with the cylindrical surface of the connection pin 200 and the slider is in line-to-surface contact with the cylindrical surface of the connection pin 200, the point-to-point contact is not stabilized by the line-to-surface contact, and thus the locking member 300 is preferably a slider.

The connection pin 200 is a pin or taper pin, and the cross section of the pin or taper pin is a circular or regular polygon, and illustratively, a triangle, a square, a regular pentagon, a regular hexagon, etc. When the cross section of the pin is regular polygon, the number of sides of the regular polygon is the same as the number of inclined planes, namely, the side surfaces of the pin are in one-to-one correspondence with the inclined planes of the inclined plane 101.

It should be noted that, when the connection pin 200 is a taper pin, the connection pin 200 has an inverted truncated cone shape or an inverted truncated cone shape. At this time, the sum of the gradient of the conical surface of the taper pin and the gradient of the inclined chute 103 satisfies the self-locking condition of the upward movement of the slide block or the ball in the inclined chute 103. In order to further ensure the reliability of self-locking of the sliding blocks or the balls, the column shaft of the pin is a rough surface.

Considering that the top end of the connection pin 200 contacts the sliding block or the ball at first in the initial stage of entering the connection sleeve 100, the sliding block or the ball slides or rolls along the inclined sliding groove 103 along with the penetration of the connection pin 200, in order to reduce the abrasion of the connection pin 200 and the locking piece 300, the top of the connection pin 200 is provided with a chamfer, correspondingly, the junction of the bottom surface 306 of the sliding block and the fourth side surface 304 is provided with the same chamfer, when the top of the connection pin 200 contacts the sliding block, the chamfer planes of the two are just contacted, and the contact friction of a line surface or a line is avoided. When the locking member 300 is a ball, the ball rolls in the inclined chute 103 and is in rolling contact with the connecting pin 200, so that the abrasion is small.

In this embodiment, as shown in fig. 3, the connecting pin 200 is fixed to the structure to be connected and straightened, the structure with the connecting sleeve 100 at the upper part is vertically dropped into the connecting pin 200, and along with the dropping of the connecting sleeve 100, the locking member 300 in the inclined chute 103 moves upward to realize error-adaptive adjustment and tensile shear self-locking connection. The lower portion of the shaft of the connection pin 200 is provided with threads, the lower portion connected structure is provided with a threaded hole, and the connection pin 200 is in threaded connection with the lower portion connected structure.

Considering the placement of the locking member 300, as shown in fig. 1, the top of the connecting sleeve 100 is a detachable top cover 105, the top cover 105 is connected with the main body of the connecting sleeve 100 through screws, when the locking member 300 needs to be placed, the top cover 105 is removed, the locking member 300 is placed from the top of the inclined chute 103, the locking member 300 slides to the bottom of the inclined chute 103 under the action of gravity, and after the locking member 300 is placed, the top cover 105 is installed.

The prestress error adaptation type connecting node can realize error adaptation type connection, can effectively transfer node tension and shearing force, is simple in connecting method and convenient to detach, and greatly improves the connecting speed and efficiency of a construction site.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides an error adaptation type connected node, its characterized in that, includes connecting sleeve (100), connecting pin axle (200) and retaining member (300), the inner chamber lower extreme opening of connecting sleeve (100) is less than the upper end opening, the wall of inner chamber is inclined plane (101), inclined plane (101) are the cambered surface or are a plurality of inclined plane connection formation, the equipartition has a plurality of slant spouts (103) on inclined plane (101), retaining member (300) are located in slant spout (103), and can be in slant spout (103) internal motion, after the inner chamber of connecting sleeve (100) is got into to one end of connecting pin axle (200), can with retaining member (300) offset locking in order to adapt to the error.

2. The error-adaptive connection node according to claim 1, wherein when the inclined surface (101) is formed by connecting a plurality of inclined planes, the inclined chute (103) coincides with the inclined angle of the inclined planes, and one inclined chute (103) is provided on each inclined plane.

3. The error-adapted connection node according to claim 1, characterized in that the connection sleeve (100) is a cylindrical structure, the cross-sectional outer contour of which is circular or regular polygon.

4. The error-adaptive connecting node according to claim 1, wherein an annular groove (104) is provided at an upper portion of an inner cavity of the connecting sleeve (100), and a top portion of the inclined chute (103) is communicated with the annular groove (104).

5. The error-adapted connection node according to claim 1, characterized in that the slot width of the diagonal slot (103) is smaller than the minimum dimension of the slot interior in a direction parallel to the slot.

6. The error-adapted connection node according to claim 1, characterized in that the connection pin (200) is a pin or taper pin, the cross section of which is circular or regular polygonal.

7. The error-adapted connection node according to claim 1, characterized in that the top of the connection pin (200) is provided with a chamfer.

8. The error-adapted connection node according to claim 1, characterized in that the top of the connection sleeve (100) is provided with a detachable top cover (105).

9. The error-adapted connection node according to claim 1, characterized in that one end of the connection pin (200) is provided with a thread.

10. The error-adapted connection node according to any of claims 1-9, wherein the angle between the oblique chute (103) and the axis of the connection sleeve (100) enables sliding self-locking of the locking member (300) in the oblique chute (103).