High-strength hidden connecting piece

Abstract

The utility model relates to the technical field of profile connecting pieces, in particular to a high-strength hidden connecting piece. A high-strength hidden connecting piece comprises a left main body and the like, the left main body and the right main body are arranged on the left side and the right side of a cylinder respectively, a through hole is formed in the cylinder in a penetrating mode, oblique tightening bosses are arranged on the upper portion of the left main body and the upper portion of the right main body respectively, the inclination angle of the oblique tightening bosses is 45 degrees, and conical openings are formed in the left side and the right side of the cylinder respectively. The oblique angle of the conical opening is 45 degrees. The trouble that a nut block needs to be placed in a profile notch and aligned with a bolt in an existing connecting piece is avoided, a narrow space is not needed for screwing the bolt, operation is more convenient, the bolt installation direction is perpendicular to the profile surface and is located on the outer side, installation is convenient, the left main body and the clamping block are integrally arranged, the cylinder and the inclined tight boss are matched for tensioning connection, the process is simplified, and the production efficiency is improved. The installation efficiency is improved, and the two profiles are firmly connected.

Description

TECHNICAL FIELD

[0001] The utility model relates to profile connecting piece technical field especially relates to a high strength hidden connecting piece. BACKGROUND

[0002] In the installation process of the aluminum profile frame, the aluminum profile needs to be connected, at which time the connecting piece is in place. The high-strength hidden connecting piece can be installed inside the aluminum profile and plays a key role in connecting two profiles.

[0003] The existing aluminum profile connecting piece usually has the following installation steps: first, a built-in hole is formed in one of the aluminum profiles, then the connecting piece body is placed in the built-in hole; then a nut block is placed at the slot of the other aluminum profile; finally, the bolt is inserted through the connecting piece body and screwed into the nut block, thereby achieving the connection of the two profiles.

[0004] However, this connection method has obvious deficiencies. On the one hand, when placing the nut block in the profile slot, it needs to be precisely aligned with the bolt on the connecting piece body, which is a cumbersome operation that increases the difficulty and time of installation. On the other hand, when tightening the bolt, the operating space is small because the bolt is in the profile slot, making the tightening operation very inconvenient and reducing the installation efficiency. SUMMARY

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the technical problem of the utility model is to provide a high-strength hidden connecting piece.

[0006] A high-strength hidden connecting piece, comprising a left body, a cylindrical body, a right body, an inclined tight boss, a bolt, a round rod and a clamping block, the cylindrical body has a left body and a right body on its left and right sides, a through hole is formed in the cylindrical body, an inclined tight boss is arranged on the upper part of the left body and the right body, the inclined angle of the inclined tight boss is forty-five degrees, a tapered opening is formed on the left and right sides of the cylindrical body, the inclined angle of the tapered opening is forty-five point five degrees, a bolt is arranged between the left body, the cylindrical body and the right body, the bolt passes through the left body, the cylindrical body and the right body from left to right, and cooperates with the main body thread on the right body, and the left body and the right body are fixedly connected with the round rod and the clamping block from top to bottom.

[0007] Further, the diameter of the through hole of the cylindrical body is greater than the diameter of the bolt.

[0008] Further, it further comprises anti-skid studs, two anti-skid studs are arranged on the top of the clamping block.

[0009] Further, two inclined tight bosses are arranged on the right body and are mirror image distributed on the left and right sides of the upper part of the right body.

[0010] Further, the bolt is an inner hexagonal bolt.

[0011] Further, the left body, the right body and the inclined locking boss arranged thereon are made by an integral forming process.

[0012] Further, a counter-sunk groove is arranged on the left upper side of the left body, and the left end of the bolt is located in the counter-sunk groove.

[0013] Further, the anti-skid protruding nail is hemispherical.

[0014] Further, the surfaces of the components of the connecting piece are plated with an anti-corrosion plating layer.

[0015] Further, the components of the connecting piece are made of high-strength steel material.

[0016] The connecting piece of the utility model has the advantages that: the connecting piece avoids the trouble of aligning the nut block with the bolt in the profile groove, and the bolt does not need to be screwed in a narrow space, so that the operation is more convenient, the bolt installation direction is perpendicular to the profile surface and is on the outer side, the left body and the like are integrally arranged with the clamping block, the connection is pulled tight by cooperating with the cylinder and the inclined locking boss, the process is simplified, the installation efficiency is improved, and two profiles are firmly connected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0018] Figure 2 It is a three-dimensional structure sectional view of the utility model.

[0019] Figure 3 It is a three-dimensional structure explosion schematic view of the utility model.

[0020] Figure 4 It is an assembly schematic view of the utility model.

[0021] Figure 5 It is an assembly explosion schematic view of the utility model.

[0022] Figure 6 It is a size schematic view of the profile of the utility model.

[0023] In the above drawings: 1: left body, 2: cylinder, 3: right body, 4: inclined locking boss, 41: conical opening, 5: main body through tooth, 6: bolt, 7: round rod, 8: clamping block, 9: anti-skid protruding nail. DETAILED DESCRIPTION

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: A high-strength concealed connector, such as Figures 1-6 As shown, it includes a left main body 1, a cylinder 2, a right main body 3, a slanted tightening boss 4, a bolt 6, a round rod 7, and a locking block 8. The left main body 1 and the right main body 3 are respectively provided on the left and right sides of the cylinder 2. A through hole is provided on the cylinder 2, and the diameter of the through hole of the cylinder 2 is larger than the diameter of the bolt 6. The upper part of the left main body 1 and the right main body 3 are both provided with slanted tightening bosses 4, and the inclination angle of the slanted tightening bosses 4 is 45 degrees. The left and right sides of the cylinder 2 are both provided with conical openings 41, and the inclination angle of the conical openings 41 is 45.5 degrees. The bolt 6 is provided between the left main body 1, the cylinder 2, and the right main body 3. The bolt 6 passes through the left main body 1, the cylinder 2, and the right main body 3 from left to right and is threaded with the main body through thread 5 on the right main body 3. The lower part of the left main body 1 and the right main body 3 are fixedly connected to the round rod 7 and the locking block 8 from top to bottom.

[0026] like Figure 3 As shown, it also includes anti-slip protrusions 9, with two anti-slip protrusions 9 spaced apart on both the front and back sides of the top of the card block 8.

[0027] During assembly, first rotate the left main body 1 and right main body 3 to the position corresponding to dimension W, so that the locking block 8 at its bottom is parallel to the profile slot. Then, place it into the profile slot. Next, rotate the left main body 1 and right main body 3 back to dimension W, so that the locking block 8 is perpendicular to the profile slot (the width of the locking block 8 is W < the width of the profile slot W3, the diameter of the round rod 7 is < the width of the profile slot W3, the width dimension W1 of the locking block 8 is close to the internal width W2 of the profile slot to be installed, and W, W1, W2, and W3 are as follows). Figure 3 and Figure 6As shown, by formulating the above rules for the shape structure and size, each different series of products can be installed with the internal frame after the installation of the profile outer frame without pre-buried connecting pieces. Then, the cylinder 2 is placed into the built-in hole of the profile, and then the bolt 6 is sequentially threaded through the left body 1, the cylinder 2 and the right body 3, and the body through bolt 5 is tightened, thereby completing the preliminary assembly. When the cylinder 2 and the profile in which it is located are fixed, the tapered openings 41 provided on the left and right sides of the cylinder 2 will promote the left body 1 and the right body 3 to slowly move upward along the slope direction of the tapered openings 41 provided on the cylinder 2 by the tensioning action of the bolt 6. With the movement, the anti-slip studs 9 on the body will gradually tightly grip the contact surface of the other profile, and finally realize the firm connection of the two profiles. Since the installation direction of the bolt 6 is perpendicular to the surface of the profile and located outside the profile, the operator can easily install the bolt 6. In addition, the left body 1, the round rod 7 and the clamping block 8 are integrally provided, and the tensioning connection is realized by the clever cooperation of the cylinder 2 and the inclined boss 4, without the alignment work of the bolt 6 and the nut block, greatly simplifying the installation process and improving the installation efficiency.

[0028] As shown in Figure 2 and Figure 3 , the right body 3 is provided with two inclined bosses 4, which are mirror image distributed on the left and right sides of the upper part of the right body 3.

[0029] By providing two inclined bosses 4 on the right body 3, any side of the left and right sides of the right body 3 can be installed, and there is no case of using the wrong side, which improves the installation efficiency.

[0030] As shown in Figure 1 , the bolt 6 is an internal hexagonal bolt.

[0031] The head size of the internal hexagonal bolt is relatively small, which is easier to operate in some limited installation environment. In addition, the contact area between the internal hexagonal wrench and the head of the bolt 6 is larger, which can provide larger torque, so that the fastening effect of the bolt 6 is better, and the possibility of damaging the head of the bolt 6 due to the slipping of the wrench is also reduced.

[0032] The left body 1, the right body 3 and the inclined boss 4 provided thereon are made by integral molding process.

[0033] The integral molding process can ensure the connection strength and structural integrity between the left body 1, the right body 3 and the inclined boss 4, avoid the connection defects that may be caused by welding or splicing process, improve the overall strength and reliability of the connecting piece, and also reduce the processing procedures and cost.

[0034] As shown in Figure 1 and Figure 2As shown in the left body 1 upper left side is provided with countersunk recess, the left end of bolt 6 is located in the countersunk recess.

[0035] When the connecting piece is installed, the head of the bolt 6 can be hidden in the countersunk recess, so that the surface of the connecting piece is more flat, reduces the scratch or interference problem caused by the bolt 6 head protruding, and also improves the appearance of the connecting piece.

[0036] As shown in the left body 1 upper left side is provided with countersunk recess, the left end of bolt 6 is located in the countersunk recess. Figure 1 and Figure 3 As shown in the left body 1 upper left side is provided with countersunk recess, the left end of bolt 6 is located in the countersunk recess.

[0037] The shape of the hemisphere can make the anti-skid stud 9 more closely contact with other components, increase the contact area, thereby improving the friction, and the surface of the hemisphere is relatively smooth, which will not cause damage to other components during connection and disassembly.

[0038] The surface of each component of the connecting piece is plated with a corrosion-resistant plating layer.

[0039] By plating the surface of each component of the connecting piece with a corrosion-resistant plating layer, the oxidation, rusting and other phenomena of each component of the connecting piece in a humid, corrosive environment can be effectively prevented, the service life of the connecting piece is prolonged, and the performance stability of the connecting piece is also ensured.

[0040] Each component of the connecting piece is made of high-strength steel material.

[0041] The high-strength steel material has high strength and hardness, and can withstand large external force and stress, so that the connecting piece is not easy to deform and damage during use, and the safety and reliability of the connecting piece are improved.

[0042] Although the utility model has been described with reference to the exemplary embodiments, it should be understood that the utility model is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to encompass all variations and equivalent structures and functions.

Claims

1. A high strength concealed connector, characterized by, Include: Left body (1); Cylinder (2), the left body (1) right side is provided with the cylinder (2); Right body (3), the right body (3) is provided with the right body (3) on the right side of the cylinder (2), and the main body tooth (5) is arranged on the right body (3), Oblique tight boss (4), the upper portion of the left body (1) and the right body (3) is provided with the oblique tight boss (4), the oblique angle of the oblique tight boss (4) is forty-five degrees, and the left and right sides of the cylinder (2) are provided with tapered openings (41), and the oblique angle of the tapered opening (41) is forty-five point five degrees; Bolt (6), the left body (1), the cylinder (2) and the right body (3) are provided with the bolt (6) in common, the bolt (6) is sequentially penetrated from left to right through the left body (1), the cylinder (2) and the right body (3), and is screwed with the main body tooth (5) on the right body (3); Round rod (7), the lower portion of the left body (1) and the right body (3) is fixedly connected with the round rod (7);And The clamping block (8) is fixedly connected with the clamping block (8) at the bottom of the round rod (7).

2. A high strength concealed connector according to claim 1, wherein The diameter of the through hole of the cylinder (2) is greater than the diameter of the bolt (6).

3. A high strength concealed connector according to claim 2, wherein Also include: Anti-skid studs (9), two anti-skid studs (9) are arranged on the top of the clamping block (8) in an interval type.

4. A high strength concealed connector according to claim 3, wherein The right body (3) is provided with two oblique tight bosses (4), and the mirror image is distributed on the left and right sides of the upper portion of the right body (3).

5. A high strength concealed connector according to claim 4, wherein The bolt (6) is a hexagonal bolt.

6. A high strength concealed connector according to claim 5, wherein The left body (1), the right body (3) and the oblique tight boss (4) arranged thereon are made of one-piece forming process.

7. A high strength concealed connector according to claim 6, wherein The left end of the bolt (6) is located in the countersunk groove on the left side of the upper portion of the left body (1).

8. A high strength concealed connector according to claim 7, wherein The anti-skid stud (9) is semispherical.

9. A high strength concealed connector according to claim 8, wherein, The surface of each component of the connecting piece is plated with an anticorrosion plating layer.

10. A high strength concealed connector according to claim 9, wherein, Each component of the connecting piece is made of high-strength steel material.

Images