CN218969986U - Pressing-fit anti-pulling mechanical connector - Google Patents

Abstract

The utility model provides a pressing and pulling-resistant mechanical connector, which comprises: one end of the connecting piece is provided with a first connecting part, the outer wall of the first connecting part is provided with a plurality of annular external teeth which are arranged at intervals along the axial direction of the connecting piece, the annular external teeth comprise an abutting layer and a guiding layer, the section of the abutting layer is square, and the section of the guiding layer is triangular; the first limiting part comprises a shell with an open top surface, a plurality of limiting blocks and a plurality of springs, wherein the shell is propped between the first tubular pile and the first end plate, the limiting blocks and the springs are arranged in the shell, the limiting blocks enclose to form a pulling-resistant channel communicated with the outside, a plurality of annular tooth grooves matched with the annular external teeth are formed in the pulling-resistant channel, and the springs are propped between the limiting blocks and the shell. The contact area between the plurality of annular external teeth and the annular tooth grooves can be increased, so that the friction force between the annular external teeth and the annular tooth grooves is increased, and the integral anti-pulling effect of the mechanical joint is further improved.

Description

Pressing-fit anti-pulling mechanical connector

Technical Field

The utility model relates to the field of mechanical connectors, in particular to a pressing-fit anti-pulling mechanical connector.

Background

The tubular pile is a hollow cylinder body formed by concrete, end plates for interconnection are universally arranged at two ends of the tubular pile, the tubular pile can play a role in transferring the weight of an upper building to a soil layer with high bearing capacity at a lower layer, improving the stability of the building, and compacting a soft soil layer, so that the bearing capacity of foundation soil is improved, the cost of the foundation can be greatly reduced by using the tubular pile, and the tubular pile is also sufficient in strength, so that the tubular pile is widely applied to the engineering foundation fields of railways, highways and bridges, ports, wharfs, water conservancy, municipal administration, buildings, large equipment and the like.

At present, the tubular pile is connected mainly through setting up mechanical joint on the tubular pile end plate, carries out the spacing of horizontal direction and vertical direction to the connecting piece through setting up two side spring pressfitting spacing subassembly in the current mechanical joint. The mechanical quick connection box for the end plate of the prestressed concrete anti-pulling pipe pile is named as a Chinese patent application with the application number of 202122063648.1, and limits the screw in the horizontal direction and the vertical direction through a rectangular plate provided with threads and a spring; for another example, a mechanical engagement joint of a prestressed concrete pipe pile and a prestressed concrete pipe pile are named, and a Chinese patent application with the application number of 201120111621.1 carries out limit on a connecting pin in the horizontal direction and the vertical direction through a clamping block provided with a first engagement tooth and an elastic part; it is obvious that current two side spring pressfitting spacing subassembly carries out spacing of vertical direction to the connecting piece mainly through setting up screw thread or meshing tooth, but current screw thread and the cross section of meshing tooth generally set up to triangle-shaped structure, set up like this and make screw thread or meshing tooth easily receive the damage in the use and cause fracture deformation etc. simultaneously, reduced the frictional force between connecting piece and the spacing subassembly greatly for the connecting piece is spacing through screw thread fit or meshing tooth meshing only, has reduced the resistance to plucking effect.

The utility model aims at solving the problems existing in the prior art and designing a pressing and pulling-resistant mechanical joint.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a pressing anti-pulling mechanical joint which can effectively solve the problems in the prior art.

The technical scheme of the utility model is as follows:

a compression resistant mechanical joint for connecting a first end plate of a first tubular pile and a second end plate of a second tubular pile, comprising:

the connecting piece is characterized in that one end of the connecting piece is provided with a first connecting part, the outer wall of the first connecting part is provided with a plurality of annular external teeth which are arranged at intervals along the axial direction of the connecting piece, the annular external teeth comprise an abutting layer arranged on the upper layer and a guiding layer arranged on the lower layer, the section of the abutting layer is square, and the section of the guiding layer is triangular;

the first locating part, including top surface open-ended casing, a plurality of stopper and a plurality of spring, the casing supports to be located between first tubular pile and the first terminal plate, a plurality of stoppers and a plurality of spring are located in the casing, a plurality of the stopper encloses to close and forms the resistance to plucking passageway that is linked together with the casing outside, the resistance to plucking passageway in seted up with a plurality of annular tooth socket of annular external tooth looks adaptation, a plurality of the spring is the state top of compressing tightly locates the left and right sides of stopper with between the casing, first connecting portion is beaten into behind the resistance to plucking passageway, a plurality of the stopper passes through the elasticity of spring is held in the pressure and is located on the outer wall of first connecting portion, first connecting portion passes through a plurality of annular external tooth and the spacing setting of joint cooperation of annular tooth socket.

Further, the thickness D1 of the abutting layer is set to be 0.5mm-1.5mm, the thickness D2 of the guiding layer is set to be 1.5mm-2.5mm, and the inclination angle A of the guiding layer is set to be 40 degrees to 50 degrees.

Further, a distance D3 between a plurality of the ring-shaped external teeth is set to 1.5mm-2.5mm.

Further, the outer diameter of the spring is matched with the height of the limiting block.

Further, the middle parts of the opposite inner walls of the shell are protruded to form protruding edges, and when the first connecting part is not driven into the anti-pulling channel, one side, away from the spring, of the limiting blocks is abutted to the protruding edges.

Further, the first end plate is provided with a connecting through hole corresponding to the anti-pulling channel, the second end plate is provided with a threaded hole, the other end of the connecting piece forms a mounting part, the mounting part can be connected with the threaded hole in a threaded manner, and the connecting part can be driven into the first limiting piece through the connecting through hole.

Further, the device also comprises a second limiting part with the same structure as the first limiting part, the second limiting part is symmetrically propped between the second tubular pile and the second end plate, connecting through holes corresponding to the anti-pulling channels are respectively formed in the first end plate and the second end plate, second connecting parts symmetrically arranged on the first connecting parts are formed at the other ends of the connecting parts, the first connecting parts and the second connecting parts are respectively driven into the corresponding anti-pulling channels through the connecting through holes, a plurality of limiting blocks are in locking pressing on the outer walls of the first connecting parts and the second connecting parts through the elasticity of the springs, and the first connecting parts and the second connecting parts are in limiting setting through a plurality of corresponding annular external teeth and annular tooth grooves.

Accordingly, the present utility model provides the following effects and/or advantages:

the utility model provides a pressing-fit anti-pulling mechanical connector, which comprises a connecting piece, wherein one end of the connecting piece forms a first connecting part, a plurality of annular external teeth are arranged on the outer wall of the connecting part, each annular external tooth comprises an abutting layer and a guiding layer, the section of each abutting layer is square, and the section of each guiding layer is triangular; the first limiting part comprises a shell, a plurality of limiting blocks and a plurality of springs, wherein the limiting blocks and the springs are arranged in the shell, the limiting blocks enclose to form a pulling-resistant channel communicated with the outer side of the shell, a plurality of annular tooth grooves matched with the annular external teeth are formed in the pulling-resistant channel, and the springs are propped between the limiting blocks and the shell. Through the arrangement of the structure, after the first connecting part is driven into the anti-pulling channel, the limiting blocks are pressed on the outer wall of the first connecting part in a locking mode through the elasticity of the springs, and the first connecting part is in limiting arrangement through the clamping fit of the annular external teeth and the annular tooth grooves, so that quick connection is realized, and the limiting of the connecting part in the horizontal direction and the vertical direction is carried out; the setting of butt layer can avoid the guiding layer to damage in the use and cause fracture deformation etc. has improved the stability of guiding layer to the life of a plurality of ring external teeth of extension, simultaneously, the setting of butt layer has increaseed the area of contact between a plurality of ring external teeth and the annular tooth's socket, thereby increases the longitudinal friction between the two, and then improves the holistic resistance to plucking effect of mechanical joint.

It is to be understood that both the foregoing general description and the following detailed description of the present utility model are exemplary and explanatory and are intended to provide further explanation of the utility model as claimed.

Drawings

Fig. 1 is a schematic diagram of an explosion structure according to a first embodiment of the present utility model.

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3 is a schematic cross-sectional view of an embodiment of the present utility model after installation.

Fig. 4 is a schematic cross-sectional view of the second embodiment of the present utility model after installation.

Detailed Description

For the convenience of understanding by those skilled in the art, the structure of the present utility model will now be described in further detail with reference to the accompanying drawings:

example 1

Referring to fig. 1-3, a press-fit pull-out mechanical joint for connecting a first end plate 11 of a first pipe pile 1 and a second end plate 21 of a second pipe pile 2, comprising:

one end of the connecting piece 3 is provided with a first connecting part 31, the outer wall of the first connecting part 31 is provided with a plurality of annular external teeth 33 which are arranged at intervals along the axial direction of the connecting piece, the annular external teeth 33 comprise an abutting layer 331 arranged on the upper layer and a guiding layer 332 arranged on the lower layer, the section of the abutting layer 331 is square, and the section of the guiding layer 332 is triangular;

the first limiting part 4 comprises a shell 41 with an open top surface, a plurality of limiting blocks 42 and a plurality of springs 43, wherein the shell 41 is propped between the first tubular pile 1 and the first end plate 11, specifically, the shell 41 can be propped between the first tubular pile 1 and the first end plate 11 in a manner of welding, cement pouring pre-embedding and the like, the limiting blocks 42 and the springs 43 are arranged in the shell 41, the limiting blocks 42 are surrounded to form a pulling-resistant channel 421 communicated with the outer side of the shell, a plurality of annular tooth sockets 422 matched with the annular outer teeth 33 are formed in the pulling-resistant channel 421, the springs 43 are propped between the left side and the right side of the limiting blocks 42 in a compressing state, after the pulling-resistant channel 421 is driven into by the first connecting part 31, the limiting blocks 42 are arranged on the outer wall of the first connecting part 31 in a clasping manner through the elastic force of the springs 43, and the first connecting part 31 is arranged in a clamping-fitting limiting mode of the annular outer teeth 33 and the annular tooth sockets 422.

Through the arrangement of the structure, after the first connecting part 31 is driven into the anti-pulling channel 421, the limiting blocks 42 are pressed on the outer wall of the first connecting part 31 by the elastic force of the springs 43 in a locking and matching way, and the first connecting part 31 is limited by the clamping and matching way of the annular external teeth 33 and the annular tooth grooves 422, so that quick connection is realized, and the limiting of the connecting piece 3 in the horizontal direction and the vertical direction is carried out; the setting of butt layer 331 can avoid guiding layer 332 to damage in the use and cause fracture deformation etc. has improved guiding layer 332's stability to the life of a plurality of ring external teeth 33 of extension, simultaneously, the setting of butt layer 331 has increaseed the area of contact between a plurality of ring external teeth 33 and the annular tooth socket 422, thereby increases the vertical frictional force between the two, and then improves the holistic resistance to plucking effect of mechanical joint.

Specifically, the thickness D1 of the abutting layer 331 is set to 0.5mm to 1.5mm, the thickness D2 of the guide layer 332 is set to 1.5mm to 2.5mm, and the inclination angle a of the guide layer 332 is set to 40 ° to 50 °. Preferably, in the present embodiment, the thickness D1 of the abutting layer 331 is set to 1mm, the thickness D2 of the guiding layer 332 is set to 2mm, and the inclination angle a of the guiding layer 332 is set to 45 °. The contact area between the plurality of arc-shaped external teeth 33 and the annular tooth sockets 422 is enlarged while quick connection is realized, so that the friction force between the plurality of annular external teeth 33 and the anti-pulling channel 421 is increased, and the integral anti-pulling effect of the mechanical joint is further improved; in other embodiments, the thickness D1 of the abutting layer 331, the thickness D2 of the guiding layer 332, and the inclination angle a of the guiding layer 332 may be adaptively adjusted according to the specific situation.

Further, a space D3 between a plurality of the ring-shaped external teeth 33 is set to 1.5mm to 2.5mm. Preferably, in this embodiment, the distance D3 between the plurality of arc-shaped external teeth 33 is set to 2mm, so as to increase the contact area between the first connecting portion 31 and the anti-pulling channel 421, thereby increasing the friction between the connecting member 3 and the anti-pulling channel 421, and further improving the overall anti-pulling effect of the mechanical joint; in other embodiments, the distance D3 between the plurality of arcuate external teeth 33 may be adaptively adjusted according to the specific situation.

In order to make the stoppers 42 uniformly stressed, the outer diameter of the spring 43 is adapted to the height of the stoppers 42. Therefore, the elastic force of the spring 43 can be uniformly pressed onto the limiting block 42, and the limiting block 42 can be uniformly held and pressed on the outer wall of the connecting piece 3, so that the stability of the connection of the mechanical connector is improved.

In order to stably install the stoppers 42 and the springs 43 in the housing, the middle parts of the opposite inner walls of the housing 41 are protruded to form a protruding edge 411, and when the first connecting portion 31 is not driven into the pull-out preventing channel 421, one side of the stoppers 42 away from the springs 43 is abutted against the protruding edge 411. Therefore, the stoppers 42 and the springs 43 can be stably supported between the protruding ribs 411 and the inner wall of the housing 41, and the number of turns of the springs can be reduced, and enough spring length is reserved for pressing the stoppers 42 onto the outer wall of the connecting piece 3.

In this embodiment, the first end plate 11 is provided with a connection through hole corresponding to the pull-out resistant channel 421, the other end of the connecting piece 3 forms a mounting portion 34, the mounting portion 34 and the second end plate 21 may be detachably disposed, specifically, the mounting portion 34 and the second end plate 21 may be detachably disposed by an existing connection manner, for example, threaded connection, clamping connection, etc., and the first connection portion 31 may be driven into the first limiting member 4 through the connection through hole.

Example two

Referring to fig. 4, the difference between this embodiment and the first embodiment is that the device further includes a second limiting member 5 having the same structure as the first limiting member 4, the second limiting member 5 is symmetrically abutted between the second tubular pile 2 and the second end plate 21, connection through holes corresponding to the anti-pulling channels 421 are respectively formed in the first end plate 11 and the second end plate 21, a second connection portion 32 symmetrically disposed with the first connection portion 31 is formed at the other end of the connection member 3, and after the first connection portion 31 and the second connection portion 32 are respectively driven into the corresponding anti-pulling channels 421 through the connection through holes, a plurality of limiting blocks 42 are held and pressed on the outer walls of the first connection portion 31 and the second connection portion 32 by elastic force of the springs 43, and the first connection portion 31 and the second connection portion 32 are respectively disposed in a limiting manner by a plurality of corresponding annular external teeth 33 and annular tooth grooves 422. Therefore, when the quick connection is realized, the two ends of the connecting piece 3 are subjected to limit setting through the first limiting piece 4 and the second limiting piece 5, and the integral anti-pulling effect of the mechanical connector is greatly improved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. A press-fit anti-pull mechanical joint for connecting a first end plate (11) of a first tubular pile (1) and a second end plate (21) of a second tubular pile (2), comprising:

one end of the connecting piece (3) is provided with a first connecting part (31), a plurality of annular external teeth (33) are arranged on the outer wall of the first connecting part (31) at intervals along the axial direction of the connecting piece, the annular external teeth (33) comprise an abutting layer (331) arranged on the upper layer and a guide layer (332) arranged on the lower layer, the section of the abutting layer (331) is square, and the section of the guide layer (332) is triangular;

first locating part (4), including top surface open-ended casing (41), a plurality of stopper (42) and a plurality of spring (43), casing (41) support and locate between first tubular pile (1) and first terminal plate (11), a plurality of stopper (42) and a plurality of spring (43) are located in casing (41), a plurality of stopper (42) enclose to close and form anti-pulling channel (421) that are linked together with the casing outside, anti-pulling channel (421) in set up with a plurality of annular tooth socket (422) of annular tooth socket (33) looks adaptation, a plurality of spring (43) are compressed tightly the state top locate between the left and right sides of stopper (42) and casing (41), after first connecting portion (31) are beaten into anti-pulling channel (421), a plurality of stopper (42) are through the elasticity of spring (43) is embraced and is pressed and is located on the outer wall of first connecting portion (31), first connecting portion (31) are through a plurality of annular tooth socket (33) and annular tooth socket (422) joint setting.

2. A press-fit pull-out mechanical joint according to claim 1, wherein the thickness D1 of the abutment layer (331) is set to 0.5mm-1.5mm, the thickness D2 of the guiding layer (332) is set to 1.5mm-2.5mm, and the inclination a of the guiding layer (332) is set to 40 ° -50 °.

3. A press-fit pull-out mechanical joint according to claim 1, characterized in that the distance D3 between several of the ring-shaped external teeth (33) is set to 1.5mm-2.5mm.

4. A press-fit anti-pull mechanical joint according to claim 1, characterized in that the outer diameter of the spring (43) is adapted to the height of the stopper (42).

5. A press-fit anti-pulling mechanical joint according to claim 1, wherein the middle parts of the opposite inner walls of the shell (41) are protruded to form a convex edge (411), and when the first connecting part (31) is not driven into the anti-pulling channel (421), one side, away from the spring (43), of the limiting blocks (42) is abutted against the convex edge (411).

6. The pressing and pulling-resistant mechanical joint according to claim 1, wherein the first end plate (11) is provided with a connecting through hole corresponding to the pulling-resistant channel (421), the other end of the connecting piece (3) is provided with a mounting part (34), the mounting part (34) and the second end plate (21) are detachably arranged, and the first connecting part (31) can be driven into the first limiting piece (4) through the connecting through hole.

7. The pressing-fit anti-pulling mechanical joint according to claim 1, further comprising a second limiting piece (5) with the same structure as the first limiting piece (4), wherein the second limiting piece (5) is symmetrically propped between the second tubular pile (2) and the second end plate (21), connecting through holes corresponding to the anti-pulling channels (421) are respectively formed in the first end plate (11) and the second end plate (21), second connecting portions (32) symmetrically arranged with the first connecting portions (31) are formed at the other ends of the connecting pieces (3), and after the corresponding anti-pulling channels (421) are respectively driven into the first connecting portions (31) and the second connecting portions (32) through the connecting through holes, a plurality of limiting blocks (42) are pressed and arranged on the outer walls of the first connecting portions (31) and the second connecting portions (32) through elastic force of the springs (43), and the first connecting portions (31) and the second connecting portions (32) are respectively arranged through corresponding annular tooth grooves (422) and annular outer teeth (422).

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