CN217902702U

CN217902702U - Piano pillar connection structure convenient to install and not prone to crack

Info

Publication number: CN217902702U
Application number: CN202220889897.8U
Authority: CN
Inventors: 洪亚东; 李瑾娟; 周文银
Original assignee: Fujian Yadong Piano Co ltd
Current assignee: Fujian Yadong Piano Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-11-25
Anticipated expiration: 2032-04-18

Abstract

The utility model relates to a piano structure field especially indicates a piano pillar connection structure easy to assemble and difficult fracture, and this structure is including the crossbeam of being connected with the pillar, and connects the pillar with the fixed subassembly of crossbeam. The end of the strut is provided with an embedding part, the side face of the beam is provided with an embedding groove, the cross section of the embedding groove and the cross section of the embedding part are waist-shaped, and the embedding part is embedded into the embedding groove in an adaptive mode. The utility model discloses a structure is in the installation during the pillar, directly will the pillar the embedding part correspondence is impressed extremely the crossbeam can be accomplished in the embedded groove the installation of pillar, convenience very. Simultaneously through the fastness after the connection that fixed subassembly can effectual improvement installation passes through the embedding part with the oval structure in embedded groove can avoid the installation back the crossbeam fracture to further improvement the structural fastness after the pillar installation.

Description

Piano pillar connection structure convenient to install and not prone to crack

Technical Field

The utility model relates to a piano structure field especially indicates a piano pillar connection structure easy to assemble and difficult fracture.

Background

At present, in a structure for mounting and fixing a piano strut to a beam, a square embedded groove is generally processed on the side surface of the beam, a square embedded head is processed on the end surface of the strut, and then the embedded part is pressed into the embedded groove to complete the fixation of the strut.

In such a structure, if the insertion portion is larger than the insertion groove, the beam is likely to crack if the insertion portion is forcibly pressed into the insertion groove; if the insert is smaller, a gap is formed in the insert groove, resulting in an insufficiently secure assembly.

Disclosure of Invention

Not enough that provides to above-mentioned background art, the utility model provides a piano pillar connection structure easy to assemble and difficult fracture.

The utility model adopts the following technical scheme:

the utility model provides a piano pillar connection structure easy to assemble and difficult fracture which characterized in that, this structure including with the crossbeam that the pillar is connected, and connect the pillar with the fixed subassembly of crossbeam:

the end part of the strut is provided with an embedded part;

an embedded groove is formed in the side face of the cross beam, and the embedded part is embedded into the embedded groove in a matched mode;

the fixing component comprises a connecting plate, an embedded sheet and an embedded pin;

the two ends of the embedded pin are respectively provided with a guide part and a spreading part, and the guide part and the spreading part are cones with gradually reduced section sizes;

a through connecting hole is formed in the middle of the connecting plate, the two ends of one side of the connecting plate are connected with the embedded pieces in a sliding mode, and a plurality of pins are distributed on the surface of the other side of the connecting plate;

wherein, the connecting plate is put into in the embedded groove, just the embedding piece is pressed close to the bottom surface of embedded groove, the embedding part is impressed after the embedded groove, the pin nail is gone into in the embedding part, prop the portion of opening and crowd into in the embedding part and make the embedding part splits to both sides, the guide part nail is gone into extremely the bottom surface of embedded groove, simultaneously the guide part will two the embedding piece to connecting plate both sides roof-open and make two the embedding piece is crowded respectively into the both sides wall of embedded groove.

As a further improvement, two sides of one side of the connecting plate are both provided with guide grooves, the guide grooves are in an L shape, and two sides of the two embedding pieces are respectively embedded into the two guide grooves, so that the two embedding pieces slide relative to the connecting plate.

As a further improvement, a circle of raised guide ring is arranged on the periphery of the connecting hole on the other surface of the connecting plate, and the embedded pin penetrates through the guide ring.

As a further improvement, the cross section of the embedded groove and the cross section of the embedded part are both of a waist circle shape.

As a further improvement, the distance between the side surface of the embedded part and the side edge of the strut is 3-8 mm.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the utility model discloses a structure is in the installation during the pillar, directly will the pillar the embedding part correspondence is impressed extremely the crossbeam can accomplish in the embedded groove the installation of pillar, convenience very. Simultaneously through the fastness after the connection that fixed subassembly can effectual improvement installation passes through the embedding part with the oval structure in embedded groove can avoid the installation back the crossbeam fracture to further improvement the structural fastness after the pillar installation.

Drawings

Fig. 1 is a perspective view of a pillar before being connected to a cross member.

Fig. 2 is a perspective view of the post after it is attached to the beam.

Fig. 3 is a perspective view of the fixing assembly from a front view.

Fig. 4 is a perspective view of the fixing assembly from the back view.

Fig. 5 is a schematic perspective view of the fixing assembly after being disassembled.

Fig. 6 is a schematic sectional view of the present invention after the insertion portion is pressed into the insertion groove.

Fig. 7 is an enlarged schematic view of a point a in fig. 6.

Fig. 8 is an enlarged schematic view at B in fig. 6.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, a piano post connecting structure which is easy to install and not easy to crack comprises a cross beam 1 connected with a post 2, and fixing components which are shown in fig. 3 to 5 and are used for connecting the post 2 and the cross beam 1. Wherein, the tip of pillar 2 is equipped with embedding portion 21, the side of crossbeam 1 is equipped with embedded groove 11, embedding portion 21 adaptation is embedded in embedded groove 11 to this forms the main connection structure that the piano pillar is connected.

As shown in fig. 3 to 5, the fixing member includes a coupling plate 31, an insert piece 32, and an insert pin 33. The embedded pieces 32 are connected to both ends of one side of the connecting plate 31 in a sliding manner, and a plurality of pins 311 are distributed on the surface of the other side of the connecting plate 31. Specifically, as shown in fig. 4, the connecting plate 31 and the embedded pieces are sheet metal parts, two sides of one surface of the connecting plate 31 are bent to form guide grooves 312, the guide grooves 312 are L-shaped, two sides of the embedded pieces 32 are embedded into the two guide grooves 312 respectively, and the two embedded pieces 32 can slide relative to the connecting plate 31 in this way.

The two ends of the embedded pin 33 are respectively a guide part 332 and a spreading part 331, and the guide part 332 and the spreading part 331 are both cones with gradually reduced cross-sectional dimensions. The middle of the connecting plate 31 is provided with a through connecting hole 313. In assembling, the insertion pin 33 is inserted through the connection hole 313, and the guide portion 332 and the expanding portion 331 are located on both sides of the connection plate 31. Furthermore, a ring of raised guide rings 314 is arranged on the periphery of the connecting hole 313 on the side of the connecting plate 31 facing away from the insert piece 32, and after the insert pin 33 passes through the guide rings 314, the structure of the guide rings 314 can limit the insert pin 33 and prevent the insert pin 33 from being skewed.

After the structure is adopted, the connecting plate 31 is firstly arranged in the embedded groove 11 when the support 2 is installed, the embedded sheet 32 is close to the bottom surface of the embedded groove 11, and the embedded pin 33 is inserted into the connecting hole 313; the insertion portion 21 of the prop 2 is then pressed into the insertion groove 11, during which the following effects are simultaneously achieved as shown in fig. 6 to 8:

1. the insertion portion 21 is pressed against the expanding portion 331, and the expanding portion 331 is pushed into the insertion portion 21 to split the insertion portion 21 to both sides in the insertion groove 11, which corresponds to an increase in volume of the insertion portion 21, so that the insertion portion 21 can be clamped in the insertion groove 11.

2. The insertion portion 21 is pressed against the expanding portion 331, and the pin 311 is driven into the insertion portion to fix the connection plate 31 and the insertion portion 21 to each other.

3. The embedding part 21 presses the expanding part 331 and simultaneously the embedding pin 33 moves into the embedding groove 11, so that the tail end of the guide part 332 is nailed into the bottom surface of the embedding groove 11, and simultaneously when the guide part 332 moves towards the embedding groove 11, the inclined surface of the guide part 332 can form a guiding function to push the two embedding pieces 32 open towards the two sides of the connecting plate 31 so that the two embedding pieces 32 are respectively inserted into the two side walls of the embedding groove 11, and in the structure, the two embedding pieces 32 are inserted into the embedding groove 11 so that the embedding pieces 32 are fixed relative to the beam 1. It is worth mentioning that the small end portion of the guiding portion 332 is nailed into the bottom surface of the embedded groove 11, which will not cause the beam 1 to crack because the beam 1 has a large volume, and can fix the embedded pin 33 and the beam 1.

As can be seen from the above operation, after the fitting portion 21 of the pillar 2 is press-fitted into the fitting groove 11 of the cross member 1, the expanding portion 331 of the fitting pin 33 is driven into the fitting portion 21 to split the fitting portion 21 on both sides and tightly fasten the fitting portion 11, thereby fixing the pillar 2 to the cross member 1; and since the connection plate 31 is fixed by the pin 311 and the insertion portion 21 and the insertion piece 32 is inserted and fixed to the beam 1 to restrain the connection plate 31, the structure of the insertion piece 32 and the pin 311 can further restrain the insertion portion 21 to improve the firmness after the insertion portion 21 is fixed.

In addition, the cross section of the insertion groove 11 and the cross section of the insertion portion 21 are formed in a shape of a kidney-shaped circle, and in the structure of the kidney-shaped circle, the arc shapes on both sides can increase the contact area, thereby increasing the frictional force of the contact between the insertion portion 21 and the sidewall of the insertion groove 11, so that the connection between the insertion groove 11 and the insertion portion 21 is more tight, and in addition, the distance from the side surface of the insertion portion 21 to the side edge of the support column 2 is 3 to 8mm, preferably 5mm, and the distance enables the structure of the insertion portion 21 and the insertion groove 11 to be completely covered without any gap after the insertion portion 21 is pressed into the insertion groove 11.

To sum up, the utility model discloses a structure is in the installation during pillar 2, directly will pillar 2 embedding portion 21 correspond impress extremely crossbeam 1 can accomplish in the embedded groove 11 the installation of pillar 2 need not squeeze into nail etc. again, convenience very. Simultaneously through the fastness after the connection that fixed subassembly can effectual improvement installation passes through embedding portion 21 with the installation back can be avoided to the oval structure of embedded groove 11 crossbeam 1 ftractures to further improvement the structural fastness after pillar 2 installs.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides a piano pillar connection structure easy to assemble and difficult fracture which characterized in that, this structure including with the crossbeam that the pillar is connected, and connect the pillar with the fixed subassembly of crossbeam:

the end part of the strut is provided with an embedded part;

2. A piano strut connecting structure which is easy to assemble and is not easy to crack as claimed in claim 1, wherein: the two sides of one side of the connecting plate are both provided with guide grooves which are L-shaped, and the two sides of the two embedding pieces are respectively embedded into the two guide grooves, so that the two embedding pieces can slide relative to the connecting plate.

3. A piano strut connecting structure which is easy to assemble and is not easy to crack as claimed in claim 2, wherein: and a circle of raised guide ring is arranged on the periphery of the connecting hole on the other surface of the connecting plate, and the embedded pin penetrates through the guide ring.

4. A piano bracing connection structure easy to install and not prone to crack according to claim 1, wherein: the cross section of the embedded groove and the cross section of the embedded part are both in a waist circle shape.

5. A piano post connecting structure easy to assemble and not liable to crack as claimed in claim 1 or 4, wherein: the distance from the side surface of the embedded part to the side edge of the support post is 3-8 mm.