A connecting piece

Abstract

The present invention relates to a connector for connecting profiles. The connector is composed of a fixed body and a connecting part rotatably connected to the fixed body; wherein the connecting part has a clamping part for connection and fixing at one end away from the fixed body. The connector of the present invention can be used for connecting profiles at an angle, and can be directly connected at the connection position without long-distance sliding or removal of other profiles connected to the target profile, and is used for convenient and fast on-site installation.

Description

Technical Field

[0001] The invention belongs to the field of door and window profiles, and in particular relates to a novel connection structure for aluminum profiles, plastic-steel profiles and the like. Background Art

[0002] Profiles are widely used in modern architecture, decoration and other fields. In the process of decoration or construction, the demand for strong, safe and convenient connection parts is very large. Especially in decoration, in addition to the requirements for firmness and safety, convenient connection and simple and flexible operation are important considerations for connectors. In cities, modern decoration, in addition to the decoration of new houses, is more demanded for the renovation of old houses and second-hand houses. Such a situation also brings problems: it is difficult to carry without elevators; the narrow corridors make it more difficult to carry large building materials, which requires the building materials arriving at the site to be as scattered as possible; however, the small installation space makes it difficult to assemble scattered building materials, and they should be assembled as much as possible within the size of the final product.

[0003] In addition, during the renovation process, there are also problems with prefabricated profile connection errors or on-site adaptive changes. Often, a beam column with a factory connection error will cause the entire day's project to be unable to proceed, and it must be returned to the factory, or at worst, transported back to an open area (for example, from the building by manual transportation or pulley hoisting to an open area downstairs) for reassembly, and then transported upstairs and installed on site. This wastes a lot of manpower and material resources, and users are very dissatisfied.

[0004] Specifically, for example, the connectors (or angle brackets) of the frames (beams and columns) used for aluminum doors and windows (or plastic steel profile doors and windows) are generally three sides of the frame (except for the top beam) that are assembled in the factory for transportation and handling, and the beams and columns in between are installed on site and finally "capped". Once the corridor is narrow, the elevator is narrow, and the window area is large, not only is transportation difficult, but the transportation must be carried out by means of suspension to the stairs with the help of pulleys, cranes, etc., which increases the cost and poses certain risks. The existing connectors are generally rectangular pieces, one end of which is immersed in the profile cavity of the beam column to be installed / connected, and the other end is clamped by two protrusions that match the T-slot reserved on the profile of the frame column / beam. The protrusion is embedded in the T-slot from the open end of the frame column, engages with it at an angle, and slides down to the desired position, and is then fastened in this position by screws or other mechanisms. Such connectors are fine from the perspective of safety and firmness, but since the beams to be connected must be stuck at the open end of the target beams and slide to the desired position, the on-site installation space must be larger than the window area, which is very disadvantageous for the need to replace large windows such as French windows. Furthermore, sometimes there are factory configuration errors or temporary adjustments are required on site, so all the connecting beams above the part to be replaced (upper opening) need to be removed and reconnected, which is time-consuming, labor-intensive and inflexible. Summary of the invention

[0005] In view of the above connection problems currently existing in the art, the present invention provides a new type of connector for flexibly connecting profile beams and columns. The connector (also called an angle bracket or a profile connection angle bracket) can be used for connecting profiles at an angle, and can be directly connected at the connection position without long-distance sliding or removing other profiles already connected to the target profile, and is used for convenient and quick on-site installation.

[0006] Specifically, the present invention provides a connecting piece, which consists of a fixed body and a connecting part rotatably engaged with the fixed body; wherein the connecting part has a clamping part for connection and fixation at one end (distal end) away from the fixed body.

[0007] The connecting portion includes two mirror-symmetrical arms, which are arranged opposite to each other and can rotate within a certain range relative to the fixed body. Preferably, the two arms are arranged separately from each other, or flexibly connected (for example, flexibly connected via a spring or two grooves as described below). That is, the distal ends of the two arms have a clamping portion for connection and fixation. The widest width of the connecting portion formed by the two arms is equal to the width of the fixed body, so that both can be tightly pressed against the inner wall of the accommodating cavity of the profile to be connected.

[0008] Preferably, the two arms include reverse teeth for holding screws on their opposite faces. After the two arms are engaged with the groove of the target profile through the engaging portion, the relative positions of the two arms are fixed by directly receiving and holding the screws at the reverse teeth to maintain the connection (engagement) between the connector (engagement portion) and the target profile.

[0009] Furthermore, the connecting portion further comprises a spring, and the spring (at both ends thereof) connects the opposite surfaces of the two arms. The spring can maintain the relative positions of the two arms within a reasonable range (when not in use, the two arms are maintained in a position where their longitudinal axes are parallel to each other), and after the clamping portion is clamped with the groove of the target profile, the springback force can initially realize the fixed connection between the connecting member and the target profile.

[0010] Wherein, the rotatable engagement of the fixed body and the connecting part can be achieved by a protrusion and a groove whose shapes match each other at the joint. Preferably, the protrusion is spherical or cylindrical (that is, the groove is a hollow spherical or cylindrical shape). The diameter of the opening part of the groove is smaller than the diameter of the spherical or cylindrical shape of the protrusion to prevent the protrusion from escaping from the groove. At the same time, the thickness of the arm connected to the lower end of the protrusion (or the thickness of the arm of the fixed body) is smaller than the above-mentioned diameter of the protrusion, and slightly smaller than the diameter of the opening part of the groove, so that the arm can rotate (swing) relative to the groove (relative to the fixed body), or the fixed body relative to the arm of the connecting part. Wherein, the angle of rotation can be 0~±60° (preferably 0~±45°, more preferably 0~±30°, and most preferably 0~±15°).

[0011] Preferably, the protrusion is preferably arranged at the joint end of the arm. The protrusion can also be arranged at the joint end of the fixed body (the joint end of the arm of the fixed body), so that the groove is arranged at the joint end of the two arms. Such grooves may collide with each other during relative movement, and the flexibility of the connector is slightly reduced.

[0012] Furthermore, the clamping portion is preferably a protrusion facing outward at the far end of the back side of the opposite surface of the two arms, and after the protrusion is respectively inserted into the target slot, it is tightly abutted against the target slot by fixing the relative position of the two arms to fix the connection. For the vertical connection of the profile, the protrusion is in the same position in the thickness direction of the connecting member (or the arm), that is, the arms are not equal in length and do not change in the thickness direction; however, for some non-right-angle connection requirements, the protrusion can also form a certain angle (required connection angle) with the fixed body along the thickness direction, that is, the arms are not equal in length in the thickness direction, but form a certain angle (required connection angle) with the fixed body in the thickness direction.

[0013] The distal end of the fixing body has a hole for receiving a screw, which is used for fastening the connecting piece to the profile to be connected. Preferably, the hole can receive a hexagon socket screw, or a conventional screw or nut.

[0014] The method of connecting two profiles (a crossbeam and a column) at an angle using the connecting piece of the present invention is as follows: first, partially immerse the fixed main body into the hollow cavity of the profile to be connected (for example, a crossbeam) (generally, the longitudinal section of the connecting piece is substantially equal to the cross section of the hollow cavity of the profile so that it fits the hollow cavity just right); utilizing the characteristic that the two arms can move or rotate relative to each other and relative to the fixed main body, by rotating the two arms respectively, the protrusions (clamping parts) at the distal ends of the two arms are respectively clamped into the clamping grooves (for example, T-slots) of the target profile (for example, a column), and then the clamping parts and the target profile are relatively fixed under the action of a spring; subsequently, the connecting part (two arms) is immersed in the profile to be connected until the profile to be connected and the target profile are in contact with each other at an angle, and screws are respectively inserted into the reverse teeth and the screw holes of the fixed main body (the corresponding positions of the profile to be connected have corresponding holes for screw insertion) to fix the connection between the two profiles.

[0015] The new connector provided by the present invention is a new type of connection structure for example in the aluminum door and window industry. The connection and installation of the profile door and window frame using the connector of the present invention is more convenient. The connector of the present invention generally does not need to be assembled in the factory, and the on-site installation site requirement is small, which solves the problem of transporting large pieces after assembly and the problem of cramped on-site. The connector of the present invention adopts a top-pressing method to make it expand and fix itself on the left and right, which is more efficient and convenient to disassemble. In addition, since it can be disassembled and assembled "in situ", there is no need to completely disassemble and reassemble other beams and columns in the frame structure. Furthermore, due to its top-pressing clamping method, each end can be installed separately, without the need for multiple people to cooperate in clamping and sliding, and single-person assembly can be achieved. In actual construction, if the worker is not careful to install it upside down, he only needs to loosen the screws of the wrong part and translate it out, without dismantling the main frame, and then translate it correctly in by top-pressing.

[0016] At the same time, the connecting piece of the present invention solves the problem that after the traditional structure is installed and fixed on the wall, if the customer wants to change the original shape structure, the entire structure must be dismantled and reinstalled. The quick-install connection angle code of the present invention can be changed according to customer needs by removing the center column at will without damaging the main frame and the wall or dismantling it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional view (top view) of the connecting piece of the present invention.

[0018] Among them, 1 is a fixed body; 2 is a connecting part; 3 is an arm; 4 is a screw hole; 5 is a groove; 6 is a protrusion; 7 is a reverse tooth; 8 is a spring; and 9 is a clamping part. DETAILED DESCRIPTION

[0019] To facilitate those skilled in the art to better understand the present invention, specific embodiments of the present invention are now given:

[0020] A connecting piece (also called a quick-install angle code) is used to vertically connect an aluminum alloy profile beam (profile to be connected) to a column (target profile).

[0021] Specifically, Figure 1 As shown, the connecting member comprises a fixed body 1 and a connecting portion 2 rotatably engaged with the fixed body;

[0022] The distal end of the fixing body 1 has a screw hole for fixing the crossbeam and the connecting member 1; the proximal end of the fixing body 1 has two juxtaposed grooves 5 for receiving two protrusions 6 respectively;

[0023] The connecting part 2 includes two mirror-symmetrical arms 3. According to the specific profile size, the shape of the arm 3 in this example is an inverted "bow" shape (the other arm 3 is mirror-symmetrical with it). The distal end is a protrusion of the clamping part 9 protruding outward; for better rebound, the spring 8 is generally arranged between two opposite surfaces that shrink inward along the clamping part 9 of the arm 3 and then bulge outward again after casting (so that the width of the widest part of the outside of the connecting part 2 formed by the two arms is equal to the width of the fixed body 1); the arrangement positions of the spring 8 and the reverse tooth 7 on the arm 3 are interchangeable. In this example, in order to fit the fixing screw with an embedded diameter of about 4mm, the position of the arm where the reverse tooth is located is between the protrusion 6 and the spring 8, and the arm here is retracted inward again relative to the spring 8 (so that the spacing between the reverse teeth is about 3.5mm), and the protrusion 6 of the two matching grooves 5 is located at the proximal end of the arm.

[0024] When not in use, the spring 8 keeps the two arms 3 in a position where the longitudinal axes are parallel to each other. The width of the opening of the groove 5 is smaller than the diameter of the cylindrical protrusion 6 and slightly larger than the thickness of the arm 3 connected to the protrusion 6, so that the arm 3 can rotate / swing in the groove 5 within a range of about 0 to ±30°.

[0025] When in use, first, immerse the fixed body 1 into the hollow cavity (accommodating cavity) of the crossbeam; place the crossbeam on one side of the column, and swing the two arms 3 toward the column to align with the column; pinch the outer side of the arm 3 (the protruding position where the spring 8 is located) so that the distal clamping parts 9 of the two arms 3 are close to each other, and the clamping parts 9 are respectively placed in the clamping grooves of the column and release your hands, so that the clamping parts 9 and the clamping grooves are relatively fixed under the action of the spring; then, push the crossbeam and immerse the two arms 3 into the crossbeam until the crossbeam and the column are in contact with each other at an angle (e.g., 90°), and insert screws through the corresponding holes on the crossbeam at the reverse teeth 7 and the screw holes 4 of the fixed body 1 to fix the connection between the two profiles.

[0026] The connectors of the present application are arranged in the same manner as the cross-section in the thickness direction, and therefore are not shown.

[0027] In addition, it should be understood that although the present specification is described in detail according to the implementation methods, not every implementation method contains only one independent technical solution. The description adopted in the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A connector, characterized in that: The connecting member is composed of a fixed body and a connecting part rotatably engaged with the fixed body; wherein the connecting part has a clamping part for connecting and fixing at one end away from the fixed body; the connecting part includes two arms that are mirror-symmetrical, the two arms are arranged opposite to each other and flexibly connected, and can rotate within a certain range relative to the fixed body respectively; the rotatable engagement of the fixed body and the connecting part can be achieved by a protrusion and a groove whose shapes match each other at the joint; the two arms also include reverse teeth for holding screws on their opposite surfaces; the clamping part is a protrusion facing outward at the far end of the back side of the opposite surfaces of the two arms, and the protrusion is fixedly connected to the target slot by fixing the relative position of the two arms after being respectively inserted into the target slot; the connecting part also includes a spring, which connects the opposite surfaces of the two arms.

2. The connecting piece according to claim 1, characterized in that: The protrusion is spherical or cylindrical.

3. The connecting piece according to claim 1, characterized in that: The protrusion is disposed at the engagement end of the arm.

4. The connector according to claim 1, characterized in that: The distal end of the fixing body has a hole for receiving a screw.

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