CN2795523Y

CN2795523Y - Dovetail groove wedge connection structure

Info

Publication number: CN2795523Y
Application number: CN 200420059065
Authority: CN
Inventors: 刘西嘉
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-24
Filing date: 2004-05-15
Publication date: 2006-07-12
Anticipated expiration: 2014-05-15

Abstract

The utility model discloses a dovetail groove wedge block connection structure, which is used for connecting and locking two connected pieces tightly and comprises two connected pieces and a pair of tightly locked wedge blocks, wherein the two connected pieces are respectively provided with dovetail through grooves and positions of the two dovetail through grooves are mutually plumbed and crossed or are not plumbed and crossed. The pair of tightly locked wedge blocks are respectively arranged into the dovetail through grooves of the two connected pieces through dovetail wedge heads of both ends. Tight support screw nails pass through one tightly locked wedge block, the other tightly locked wedge block is tightly supported through the end part of the tight support screw nails and the two connected pieces are connected and locked tightly. The connection structure is simple, connective positions can be adjusted at will, and connection is rapid, firm and stable.

Description

A kind of dovetail groove voussoir linkage structure

Technical field

The utility model belongs to the linkage structure that is used in uses such as exhibition apparatus, building and ornament materials, is specifically related to a kind of dovetail groove voussoir linkage structure.

Background technique

Adopting the exhibition apparatus fast construction exhibition of standard piece and prefabricated is the direction of puting on display the boundary now, has the minimizing waste, thereby saves resource, environmental protection, characteristics of high efficiency.In the building of existing exhibition apparatus, between the section bar linkage structure be threaded, connecting plate connection etc., all need do corresponding processing to connected piece during connection at link position, and connecting the position, back is difficult for adjusting, there is complex structure, connect inconvenience, the problem of soundness difference is further improved.

Summary of the invention

The purpose of this utility model is to provide a kind of dovetail groove voussoir linkage structure at the deficiency of prior art existence, and simple in structure, link position can be adjusted arbitrarily, connects rapidly firm stable.

The technical solution of the utility model is as follows:

A kind of dovetail groove voussoir linkage structure, it comprises two connected pieces and a pair of locking wedge block, on two connected pieces the dovetail groove is arranged respectively, mutual square crossing of two dovetail grooves or non-perpendicular intercross arrangement, a pair of locking wedge block is put into respectively in the dovetail groove of two connected pieces by the dovetail shaped wedge head at two ends, hold out against screw and pass a wherein locking wedge block, hold out against another relative locking wedge block, connect locking two connected pieces with its end.

In this structure, the last hyposphene head of described locking wedge block can be the overall structure that interfixes, also can be to form rotating linkage structure by screw, fixed connection structure can adapt to and is fixedly coupled angle, screw connecting mode can make the various connection angles of locking wedge block self adaption, and such design is in order to be suitable for the needs of free adjusting connected piece connection angle.

This linkage structure is applicable to two section bars, two posts or beam etc. is connected that owing to be to connect by the dovetail groove, tie point can be adjusted arbitrarily; And, or to the adjustment of the two ends wedge head relative angle of locking wedge block, can be conveniently connected piece be done mutual intersection, the connection of vertical and even various angles such as be parallel to each other mutually according to the position difference of dovetail groove on two connected pieces; Simultaneously, this linkage structure has automatic fastening effect, and it is big, solid and reliable to connect surface of contact, and not high to the required precision of two connected pieces.

Description of drawings

Fig. 1 is that dovetail groove voussoir linkage structure is in the decomposing state figure that two connected pieces are connected (vertical coupled condition);

Fig. 2 is the phase diagram of Fig. 1 in connection procedure;

Fig. 3 is the phase diagram after Fig. 1 connects locking;

Fig. 4 is that dovetail groove voussoir linkage structure is being carried out the fixedly connected structural representation of non-90 degree to two connected pieces;

Fig. 4 A is a plan view;

Fig. 4 B is a longitudinal sectional view;

Fig. 4 C is a transverse sectional view;

Fig. 4 D is a side schematic representation;

Fig. 4 E is the structural representation of locking wedge block wherein;

Fig. 5 is that dovetail groove voussoir linkage structure is being carried out the structural representation that the on-fixed angle connects to two connected pieces;

Fig. 5 A is a plan view;

Fig. 5 B is a longitudinal sectional view;

Fig. 5 C is a transverse sectional view;

Fig. 5 D is a side schematic representation;

Fig. 5 E is the structural representation of locking wedge block wherein.

Embodiment

Referring to Fig. 1 and Fig. 2, dovetail groove voussoir linkage structure comprises that two are connected section bar A, B and a pair of

locking wedge block

3A, 3B, be connected section bar A bottom dovetail groove 1 is arranged, be connected section bar B top dovetail groove 2 is arranged, two dovetail grooves are vertical mutually, use

locking wedge block

3A, 3B connects, their last hyposphene head is put into respectively in dovetail groove 1 and the dovetail groove 2, pass a locking wedge block 3A by holding out against screw 4 then, the head that holds out against screw 4 backs down another locking wedge block 3B, until holding out against, locking wedge block 3A like this, the last hyposphene head of 3B is locked with dovetail groove 1 and 2 respectively, referring to Fig. 3, thereby realize that two are connected section bar A, the vertical mutually of B firmly connects.

Dovetail groove voussoir linkage structure is connected section bar A, B to two also can carry out non-90 degree connections, and referring to Fig. 4, need adjust this moment to angle and locking wedge block 3A, the 3B of dovetail groove, referring to Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D.In said structure, the last hyposphene head of

locking wedge block

3A, 3B is a fixed connection structure, referring to Fig. 4 E.

In addition, dovetail groove voussoir linkage structure is connected section bar A, B to two can also carry out the connection of on-fixed angle, referring to Fig. 5, last hyposphene head by visible its

locking wedge block

3A, 3B among Fig. 5 E is connected by attachment screw 5, can come the needs of the various connection angles of self adaption by mutual rotation, shown in Fig. 5 A, Fig. 5 B, Fig. 5 C and Fig. 5 D.

Claims

1, a kind of dovetail groove voussoir linkage structure, it comprises two connected pieces and a pair of locking wedge block, it is characterized in that: on two connected pieces the dovetail groove is arranged respectively, the mutual intercross arrangement of two dovetail grooves, a pair of locking wedge block is put into respectively in the dovetail groove of two connected pieces by the dovetail shaped wedge head at two ends, hold out against screw and pass a wherein locking wedge block, hold out against another relative locking wedge block, connect locking two connected pieces with the end.

2, dovetail groove voussoir linkage structure according to claim 1 is characterized in that: the mutual square crossing of dovetail groove is arranged on two connected pieces.

3, dovetail groove voussoir linkage structure according to claim 1 is characterized in that: the mutual non-perpendicular intercross arrangement of dovetail groove on two connected pieces.

4, dovetail groove voussoir linkage structure according to claim 1 is characterized in that: link into an integrated entity by attachment screw between the last hyposphene head of described locking wedge block.

5, dovetail groove voussoir linkage structure according to claim 1 is characterized in that: the last hyposphene head of described locking wedge block is the overall structure that interfixes.