CN210371520U

CN210371520U - Expansion direct-connection device locked by expansion force

Info

Publication number: CN210371520U
Application number: CN201920958503.8U
Authority: CN
Inventors: 彭志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-23
Filing date: 2019-06-23
Publication date: 2020-04-21
Anticipated expiration: 2029-06-23

Abstract

The utility model relates to an expansion direct-connecting device locked by expansion force, which comprises a first direct-connecting piece, a second direct-connecting piece and a screw, wherein a limit nesting structure consisting of a limit nesting lug and a limit nesting groove which are nested with each other is also arranged between the first direct-connecting piece and the second direct-connecting piece; the outer side surfaces of the first straight connecting piece and the second straight connecting piece are respectively provided with anti-skidding insections. This device uses the outside surface of first directly even piece and second directly even piece to be the frictional contact stationary plane, and the screw only plays and directly even piece and the outside removal of second and expand the first directly, does not bear the direct action of external force, can not appear returning the pine, the phenomenon that drops, and is firm, reliable, safe.

Description

Expansion direct-connection device locked by expansion force

Technical Field

The utility model relates to a be used for refuting two sections cavity or half hollow work pieces and connect the mechanism that directly links together, especially one kind relies on the inflation strength to refute and connect locking connection directly link the mechanism.

Background

In the middle of daily production operation activity, often can touch and want two panel or bodys to the end cross-section is refuted and is in the same place with end cross-section ground connection relatively. The technical means adopted at the present stage are generally as follows: the accent has been seted up respectively on the end cross-section of two panels or bodys, prepare a small segment panel or body that can the cartridge income accent, when the end cross-section of two panels or bodies docks mutually, with this small segment panel or body, earlier the cartridge in the accent, again with two panels or bodies carry out the butt joint together, at last on the outside surface of two panels or bodies, be located the position of this small segment panel or body and lock one piece or several pieces of screw, the screw is from this small segment panel or body that the outside surface of two panels or bodies directly run through, finally reach the fixed purpose of docking together of two panels or bodies. This docking connection has the following disadvantages: (1) when the two connected plates or pipe bodies are used in daily application, external force is applied to the connection positions and is dispersed to each screw to directly and independently bear, the stress contact surfaces of the screws are point stress supporting points, sheet stress surfaces cannot be formed, the stress performance is poor, the phenomena of loosening and falling of the screws are easy to occur in the long term, and the firmness and the safety of connection are directly influenced. (2) The screw heads appearing on the surface of the outer side of the connection of the two plates or the pipe bodies generally increase along with the increase of the length of the small-section plates or the pipe bodies inserted into the two plates or the pipe bodies, or increase along with the improvement of the requirement of the connection firmness, and excessive screw heads appear outside, so that the smoothness and the attractiveness of the surface of the outer side of the connection of the two plates or the pipe bodies are greatly influenced.

In view of the defects of the existing connection method, the applicant believes that in order to improve the firmness, the aesthetic property, the reliability and the safety of the connection method, another direct connection type connection mechanism different from the existing connection method needs to be newly developed and designed so as to better meet the daily production operation activity requirements of people.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve the above problems and deficiencies, and to provide an expansion direct connection device locked by expansion force, which employs a first direct connection member and a second direct connection member fastened together and having a straight strip structure, and a screw hole is disposed at a side between the first direct connection member and the second direct connection member, and a screw larger than the screw hole is driven into the screw hole, so that the first direct connection member and the second direct connection member both form a fixed force expanding outward, when the expansion direct connection device is sleeved on two plates or pipes, the expansion direct connection device pushes against the inner cavity walls of the two plates or pipes, and further, the two plates or pipes are firmly connected together; and the fixed strength of inflation that this inflation directly links the device and forms is the frictional contact stationary plane with the outside surface of first directly connected spare and second directly connected spare, is the continuous flaky frictional contact stationary plane, and the screw only plays the effect of outwards moving first directly connected spare and second directly connected spare and expand wherein, does not bear the direct action of external force, can not appear returning the pine, the phenomenon that drops, and is firm, reliable, safety, and the simple structure of whole device, convenient to use, the spiral shell head is few.

The technical scheme of the utility model is realized like this: an expansion direct-connection device locked by expansion force is characterized by comprising a first direct-connection piece, a second direct-connection piece and a screw, wherein the first direct-connection piece and the second direct-connection piece are mutually buckled and are in a straight strip structure; the two ends of the mutually buckled contact surface of the first straight connecting piece and the second straight connecting piece are respectively provided with a structure reinforcing part, the side surface between the structure reinforcing parts of the first straight connecting piece and the second straight connecting piece is respectively provided with a screw hole, the aperture of the screw hole is smaller than the section diameter of a screw, and the screw is arranged in the screw hole so that the first straight connecting piece and the second straight connecting piece form a fixing force moving outwards and expanding; the outer side surfaces of the first straight connecting piece and the second straight connecting piece are respectively provided with anti-skidding insections.

Furthermore, the two ends of the first straight connecting piece are respectively provided with a cavity position for accommodating the second straight connecting piece, the middle part of the cavity position is also provided with a structure reinforcing part, the second straight connecting piece is correspondingly provided with a structure reinforcing part, and a screw hole is also arranged between the structure reinforcing part of the cavity position and the structure reinforcing part of the second straight connecting piece; a limiting nesting structure consisting of a limiting nesting convex block and a limiting nesting groove which are nested with each other is also arranged between the structure reinforcing part at the concave cavity position and the two sides of the structure reinforcing part of the second straight connecting piece; the second straight connecting piece is arranged in the cavity positions at two ends of the first straight connecting piece through the nested assembly of the limiting nested convex blocks and the limiting nested grooves.

Furthermore, the first straight connecting piece and the second straight connecting piece are strip-shaped connecting pieces which are buckled together along the length direction of the first straight connecting piece and the second straight connecting piece; the opposite buckling surfaces of the two strip-shaped connecting pieces are respectively provided with a structure reinforcing part; the structure reinforcing parts of the two strip-shaped connecting pieces are also provided with a limiting nesting structure consisting of limiting nesting lugs and limiting nesting grooves which are nested with each other; screw holes which are arranged across the diameter of the cross section of the two strip-shaped connecting pieces are also arranged at the two ends of the outer side surface between the two strip-shaped connecting pieces.

The utility model has the advantages that: the utility model adopts the first straight connecting piece and the second straight connecting piece which are mutually buckled together and have a straight strip structure, and the side surface between the first straight connecting piece and the second straight connecting piece is provided with a screw hole, a screw which is larger than the screw hole is driven into the screw hole, so that the first straight connecting piece and the second straight connecting piece all form fixed strength which is outwards moved and expanded, when the expansion straight connecting device is sleeved on the butt joint and the connection of two plates or pipe bodies, the fixed strength which is outwards moved and expanded and formed by the first straight connecting piece and the second straight connecting piece is propped against the inner cavity walls of the two plates or pipe bodies, and further, the two plates or pipe bodies are firmly connected together in a connecting way; and the fixed strength of the inflation that this inflation directly links the device and forms is with the outside surface of first directly connected and second directly connected as the frictional contact stationary plane, be the frictional contact stationary plane of even slice, the screw only plays the effect of expanding first directly connected and second directly connected outside the removal wherein, do not bear the direct action of external force, the phenomenon that can not appear returning the pine, drop, firm, reliable, safety, and the simple structure of whole device, high durability and convenient use, the spiral shell head is few, only have one or two screw heads, do not influence the clean and tidy and pleasing to the eye of two plate or body connection department surface.

Drawings

Fig. 1 is a schematic view of an application dismounting structure according to the first embodiment of the present invention.

Fig. 2 is a schematic side view of the first embodiment of the present invention.

Fig. 3 is a schematic view of a cross-sectional structure of the first embodiment of the present invention.

Fig. 4 is a schematic view of an applied three-dimensional structure according to the first embodiment of the present invention.

Fig. 5 is a schematic view of an applied three-dimensional structure of the second embodiment of the present invention.

Fig. 6 is a schematic view of an application dismounting structure of the second embodiment of the present invention.

Fig. 7 is a schematic view of the second embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 2, the expansion direct connection device locked by expansion force of the present invention includes a first direct connection member 1 and a second direct connection member 2 which are fastened together and have a straight strip structure, and a screw 3.

As shown in fig. 1 and 2, or fig. 6 and 7, a limit nesting structure is further arranged between the first straight connecting piece 1 and the second straight connecting piece 2, the limit nesting structure is formed by a limit nesting convex block 5 and a limit nesting groove 6 which are nested with each other, the first straight connecting piece 1 and the second straight connecting piece 2 can be connected together through the design of the limit nesting convex block 5 and the limit nesting groove 6, the first straight connecting piece 1 and the second straight connecting piece 2 are prevented from being mutually dislocated in the expansion and fixation process, and the first straight connecting piece 1 and the second straight connecting piece 2 can be extruded and expanded along one transverse direction. As shown in fig. 2, an expansion gap 4 is formed between the first straight piece 1 and the second straight piece 2, so that there is a sufficient expansion and expansion gap between the first straight piece 1 and the second straight piece 2.

As shown in fig. 1 and 2, or fig. 6 and 7, two ends of the fastening contact surface of the first straight connecting piece 1 and the second straight connecting piece 2 are respectively provided with a structural reinforcement portion 7, a screw hole 8 is respectively provided on the side surface between the structural reinforcement portions 7 of the first straight connecting piece 1 and the second straight connecting piece 2, the diameter of the screw hole 8 is smaller than the cross-sectional diameter of the screw 3, and the screw 3 is installed in the screw hole 8, so that the first straight connecting piece 1 and the second straight connecting piece 2 form a fixing force moving outwards and expanding, that is, as shown in fig. 3.

As shown in fig. 1 and 2, or fig. 6 and 7, anti-slip insections 10 are further provided on the outer side surfaces of the first straight connecting piece 1 and the second straight connecting piece 2, respectively, to increase the friction between the first straight connecting piece 1 and the second straight connecting piece 2 and the inner cavity wall of the connected plate or pipe body.

As shown in fig. 1 or fig. 6, when the utility model discloses a scheme is used for connecting two root canals body 20, at first set up the screw perforation 201 on the tip of root canal body 20, wear the inflation directly to link the device in the both ends lumen of two root canals body 20, penetrate screw 3 from the screw perforation 201, and make screw 3 lock go into in the screw 8, make first through-connection piece 1 and second through-connection piece 2 by the extrusion of screw 3, form the fixed strength that outwards removes the inflation, make anti-skidding have insection 10 to be extruded closely on the inner chamber wall of root canal body 20, apply the inflation extrusion force with screw 3 to first through-connection piece 1 and second through-connection piece 2, turn into the interior chamber wall friction fixation power of anti-skidding insection 10 to root canal body 20, realized the connection of refuting between two root canal bodies 20, as shown in fig. 4 and fig. 5. The connection mode can also use the connection between two hollow plates, and the principle is the same as the installation mode. In the present embodiment, the docking between the two pipe bodies 20 is merely taken as an example. Additionally, through the utility model discloses an inflation that the scheme constitutes directly links the device, except being suitable for the connection of refuting between two work pieces of the same material, also can very make things convenient for the connection of refuting between two work pieces that the material is different, for example copper pipe and aluminum pipe are that unsuitable welding mode refutes and connect, so, utilize the utility model discloses a scheme just can solve the connection of refuting between the work piece of two kinds of different materials well.

In order to meet different requirements of people in practical application, on the basis of the above, the utility model can extend two more specific embodiments. One is that, as shown in fig. 1 to 4, a cavity position 11 for accommodating the second straight piece 2 is further provided on each of two ends of the first straight piece 1, a structural reinforcement portion 7 is further provided in the middle of the cavity position 11, a structural reinforcement portion 7 is correspondingly provided on the second straight piece 2, and a screw hole 8 is further provided between the structural reinforcement portion 7 of the cavity position 11 and the structural reinforcement portion 7 of the second straight piece 2. And a limiting nesting structure consisting of a limiting nesting convex block 5 and a limiting nesting groove 6 which are nested with each other is also arranged between the structural reinforcing part 7 of the cavity position 11 and the two sides of the structural reinforcing part 7 of the second straight connecting piece 2. The second straight connecting piece 2 is installed in the cavity positions 11 at the two ends of the first straight connecting piece 1 through the nesting assembly of the limiting nesting convex blocks 5 and the limiting nesting grooves 6. According to the scheme, an aluminum profile processing mode can be applied, two dies are firstly arranged, aluminum profiles with two specifications are extruded and stretched, then the first straight connecting piece 1 and the second straight connecting piece 2 are cut off according to actual application requirements, the first straight connecting piece and the second straight connecting piece are nested together, a screw hole 8 is formed, and a screw 3 is matched, so that the expansion direct-connecting device can be formed.

Alternatively, as shown in fig. 5 to 7, the first straight connecting element 1 and the second straight connecting element 2 are two strip-shaped connecting elements which are buckled together along the length direction, and the buckling surfaces of the two strip-shaped connecting elements are respectively provided with a structural reinforcing part 7 to reinforce the structural strength and the deformation resistance thereof. The structure reinforcing part 7 of the two strip-shaped connecting pieces is also provided with a limit nesting structure consisting of limit nesting lugs 5 and limit nesting grooves 6 which are nested with each other. Screw holes 8 which are transversely arranged on the cross section diameter of the two strip-shaped connecting pieces are also arranged at the two ends of the outer side surface between the two strip-shaped connecting pieces. In order to further reduce the production cost of this solution, as shown in fig. 7, the first straight connecting element 1 and the second straight connecting element 2 are two long strip-shaped connecting elements with the same shape and symmetrical structure design. When the aluminum profile is processed by using the aluminum profile, only one die is opened, the aluminum profile is extruded and drawn, profile sections with different lengths can be conveniently cut according to the actual use requirement, and then the profile sections are nested and assembled together as shown in figure 6, a screw hole 8 is formed, and a screw 3 is matched, so that the expansion direct-connection device is formed.

Furthermore, the utility model discloses a scheme except can adopting tensile aluminium alloy mode to process, also can adopt the die sinking, carries out die-casting shaping with the zinc alloy and produces.

In order to make the spacing nested structure have the advantages of simple structure, easy processing and realization, convenient assembly and the like, the specific structure can be as follows: as shown in fig. 2, the spacing nested bump 5 of the present invention is a trapezoidal spacing convex portion, and the spacing nested groove 6 is a trapezoidal spacing groove correspondingly. Alternatively, as shown in fig. 7, the position-limiting nesting convex block 5 is a letter 'T' -shaped position-limiting convex part, and the position-limiting nesting groove 6 is a letter 'T' -shaped position-limiting groove correspondingly.

Except the scheme of the two limit nesting convex blocks 5 and the limit nesting grooves 6, the utility model discloses also can be other, fail to list one by one, be convenient for realize the mutual nested structural scheme of assembling of first directly connected spare 1 and second directly connected spare 2.

In order to further reduce the weight of the whole expansion direct-connection device without reducing the structural strength of the expansion direct-connection device, as shown in fig. 1 to 3 or fig. 6 and 7, the first direct-connection piece 1 and the second direct-connection piece 2 are respectively provided with a hollow cavity hole 9.

Claims

1. An expansion direct connection device locked by expansion force is characterized in that: comprises a first straight connecting piece (1) and a second straight connecting piece (2) which are mutually buckled and have a straight strip structure, and a screw (3), wherein

A limiting nesting structure which enables the first straight connecting piece (1) and the second straight connecting piece (2) to be buckled together is further arranged between the first straight connecting piece and the second straight connecting piece, the limiting nesting structure is composed of a limiting nesting convex block (5) and a limiting nesting groove (6) which are nested together, and an extending gap (4) is further formed between the first straight connecting piece (1) and the second straight connecting piece (2);

the two ends of the mutually buckled contact surface of the first straight connecting piece (1) and the second straight connecting piece (2) are respectively provided with a structure reinforcing part (7), the side surface between the structure reinforcing parts (7) of the first straight connecting piece (1) and the second straight connecting piece (2) is respectively provided with a screw hole (8), the aperture of the screw hole (8) is smaller than the section diameter of the screw (3), and the screw (3) is arranged in the screw hole (8) so that the first straight connecting piece (1) and the second straight connecting piece (2) form outward moving and expanding fixing force;

the outer side surfaces of the first straight connecting piece (1) and the second straight connecting piece (2) are respectively provided with anti-skidding insections (10).

2. The expansion direct connection device locked by expansion force according to claim 1, wherein: the two ends of the first straight connecting piece (1) are respectively provided with a concave cavity position (11) for accommodating the second straight connecting piece (2), the middle part of the concave cavity position (11) is also provided with a structure reinforcing part (7), the second straight connecting piece (2) is correspondingly provided with a structure reinforcing part (7), and a screw hole (8) is also arranged between the structure reinforcing part (7) of the concave cavity position (11) and the structure reinforcing part (7) of the second straight connecting piece (2);

a limiting nesting structure consisting of a limiting nesting convex block (5) and a limiting nesting groove (6) which are nested with each other is also arranged between the structural reinforcing part (7) of the cavity (11) and the two sides of the structural reinforcing part (7) of the second straight connecting piece (2);

the second straight connecting piece (2) is arranged in the concave cavity positions (11) at the two ends of the first straight connecting piece (1) through the nesting assembly of the limiting nesting convex block (5) and the limiting nesting groove (6).

3. The expansion direct connection device locked by expansion force according to claim 1, wherein: the first straight connecting piece (1) and the second straight connecting piece (2) are strip-shaped connecting pieces which are assembled together in a buckling manner along the length direction of the two pieces;

the opposite buckling surfaces of the two strip-shaped connecting pieces are respectively provided with a structure reinforcing part (7);

the structure reinforcing parts (7) of the two strip-shaped connecting pieces are also provided with a limiting nested structure consisting of limiting nested lugs (5) and limiting nested grooves (6) which are nested with each other;

screw holes (8) which are arranged across the diameter of the cross section of the two strip-shaped connecting pieces are also arranged at the two ends of the outer side surface between the two strip-shaped connecting pieces.

4. The expansion direct connection device locked by expansion force according to claim 3, wherein: the first straight connecting piece (1) and the second straight connecting piece (2) are two long-strip-shaped connecting pieces which have the same shape and are designed in a symmetrical structure.

5. The expansion direct connection device locked by expansion force according to claim 1, wherein: the limiting nesting lug (5) is a trapezoidal limiting convex part, and the limiting nesting groove (6) is correspondingly a trapezoidal limiting groove.

6. The expansion direct connection device locked by expansion force according to claim 1, wherein: the limiting nesting convex block (5) is a letter 'T' -shaped limiting convex part, and the limiting nesting groove (6) is a letter 'T' -shaped limiting groove correspondingly.

7. The expansion direct connection device locked by expansion force according to claim 1, wherein: the first straight connecting piece (1) and the second straight connecting piece (2) are respectively provided with a hollow cavity hole (9).