A clamping piece type corner connecting piece

Abstract

The present invention discloses a clip-type corner connecting piece, comprising: a main body; an eccentric screw having a screw rod and a nut; a movable insert; the main body is provided with a glue injection hole, a glue flow cavity and a screw hole A1; the glue flow cavity is located below the glue injection hole; the movable insert is provided with an eccentric screw hole A2; the eccentric screw is provided with a cam; and, the cam is located between the nut and the screw rod; the eccentric screw passes through the screw hole A1 and the eccentric screw hole A2 to connect the movable insert with the main body; and, when the eccentric screw is rotated, the movable insert displaces along the main body. The beneficial effects of the present invention are reflected in that a clip-type corner connecting piece is provided. Through the arrangement of the movable insert, the corner on the side of the profile without a wall can be tightened, while ensuring the fastening of the connection between the corner connecting piece and the profile, the stability of the corner, and improving the installation efficiency of technicians.

Description

Technical Field

[0001] The present invention belongs to the technical field of profile corner assembly, and particularly relates to a clip-type corner assembly connecting piece. Background Art

[0002] Corner assembly is a very important process in the installation of door and window frames. The purpose of corner assembly is to increase the corner strength of doors and windows, maintain the stability of the basic frame of doors and windows, so that doors and windows can withstand various impact forces such as human, strong wind, and temperature changes. For profiles with a cavity on one side and no cavity on the other side, currently, during corner assembly, only the side of the profile with a cavity is connected by inserting a connecting piece into the profile cavity, lacking a corner assembly connection solution for the profile without a cavity. The side without a cavity of the profile is only connected by a flat steel sheet, which cannot achieve the effect of tightening the corner assembly and has insufficient strength. Summary of the Invention

[0003] To solve the above problems in the prior art, the present invention provides a clip-type corner assembly connecting piece.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] Provide a clip-type corner assembly connecting piece, characterized in that it includes:

[0006] A main body;

[0007] An eccentric screw with a screw rod and a nut;

[0008] A movable insert;

[0009] Wherein, the main body is provided with a glue injection hole, a glue flow cavity, and a screw hole A1;

[0010] Wherein, the glue flow cavity is located below the glue injection hole;

[0011] Wherein, the movable insert is provided with an eccentric screw hole A2;

[0012] Wherein, the eccentric screw is provided with a cam; and,

[0013] The cam is located between the nut and the screw rod;

[0014] Wherein, the eccentric screw passes through the screw hole A1 and the eccentric screw hole A2 to connect the movable insert and the main body; and,

[0015] When the eccentric screw is rotated, the movable insert displaces along the main body;

[0016] Preferably, the clip-type corner assembly connecting piece includes:

[0017] A connecting member;

[0018] Wherein, the movable insert includes a driving insert and a driven insert;

[0019] Among them, the eccentric screw hole A2 is located on the active insert piece;

[0020] Among them, the active insert piece and the driven insert piece are movably connected by a connecting member;

[0021] Among them, the driven insert piece is used to cooperate with the active insert piece to clamp the profile;

[0022] Preferably, the active insert piece is provided with a connecting hole B1;

[0023] Among them, the driven insert piece is provided with a connecting hole B2;

[0024] Among them, the connecting member passes through the connecting hole B1 and the connecting hole B2 to connect the active insert piece and the driven insert piece;

[0025] Preferably, the main body is provided with a groove C11 or a protrusion C12;

[0026] Among them, the concave or convex direction of the groove C11 or the protrusion C12 is parallel to the direction of the main body;

[0027] Among them, the driven insert piece is provided with a protrusion C21 or a groove C22;

[0028] Among them, the protruding or concave direction of the protrusion C21 or the groove C22 is parallel to the direction of the driven insert piece;

[0029] Among them, the protrusion C21 or the groove C22 is inserted into the groove C11 or the protrusion C12;

[0030] Among them, when the eccentric screw is rotated and the side of the cam farthest from the center contacts the side of the eccentric screw hole A2 close to the glue injection hole, the protrusion C21 or the groove C22 fits with the groove C11 or the protrusion C12;

[0031] Preferably, a fastening tooth is provided on the adjacent side of the side where the protrusion C21 or the groove C22 is located;

[0032] Preferably, a protrusion D1 is provided on the upper surface of the main body;

[0033] Among them, the protruding direction of the protrusion D1 is perpendicular to the direction of the main body;

[0034] Among them, a groove D2 is provided on the lower surface of the active insert piece;

[0035] Among them, the concave direction of the groove D2 is perpendicular to the direction of the active insert piece;

[0036] Among them, the protrusion D1 and the groove D2 are in sliding fit;

[0037] Preferably, the active insert piece includes:

[0038] Adjusting block;

[0039] Wherein, the active insert is provided with a through hole; and,

[0040] The through hole is close to the direction of the glue injection hole and communicates with the eccentric screw hole A2;

[0041] Wherein, the adjusting block is arranged in the through hole;

[0042] Wherein, the contact surface between the adjusting block and the eccentric screw has an arc-shaped depression; and,

[0043] The curvature of the arc-shaped depression is the same as the curvature of the cam;

[0044] Preferably, the adjusting block can be displaced in the through hole, and the displacement direction is perpendicular to the moving direction of the active insert;

[0045] Preferably, the active insert includes:

[0046] Elastic piece;

[0047] Wherein, there are connecting grooves E1 on the left and right sides of the through hole of the active insert;

[0048] Wherein, there are connecting grooves E2 on the left and right sides of the adjusting block;

[0049] Wherein, one end of the elastic piece can be inserted into the connecting groove E1; and,

[0050] The other end of the elastic piece can be inserted into the connecting groove E2;

[0051] Preferably, the nut is provided with a marking position;

[0052] Wherein, the marking position is used to mark the farthest point of the cam from the center;

[0053] Preferably, when the farthest point of the cam from the center fits with the arc-shaped depression, the starting point of the tooth crest near the cam on the screw is in contact with the starting point of the tooth bottom of the screw hole A1.

[0054] The beneficial effect of the present invention is reflected in that a clip-type corner connector is provided. Through the setting of the moving insert, the corner on the side of the profile without a wall can be tightened, while ensuring the fastening of the connection between the corner connector and the profile, the stability of the corner, and improving the installation efficiency of technicians. Description of the Drawings

[0055] Figure 1 It is a schematic diagram of a group of profiles according to an embodiment of the present invention;

[0056] Figure 2 It is a schematic diagram of a corner connector according to an embodiment of the present invention;

[0057] Figure 3 Schematic diagram of the corner connector in the embodiment of the present invention;

[0058] Figure 4 Side view of the corner connector in the embodiment of the present invention;

[0059] Figure 5 Schematic diagram of the active insert in the embodiment of the present invention;

[0060] Figure 6 Schematic diagram of the connection between the main body and the active insert in the embodiment of the present invention;

[0061] Figure 7 Schematic diagram of the connection between the driven insert and the active insert in the embodiment of the present invention;

[0062] Figure 8 Schematic diagram of the marked position in the embodiment of the present invention. Detailed implementation manners

[0063] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0064] Please refer to Figure 1-8 As shown, the specific embodiments provided by the present invention are as follows:

[0065] Embodiment 1:

[0066] A clip-type corner connector, characterized in that it includes:

[0067] A main body 1;

[0068] An eccentric screw 2 having a screw rod 3 and a nut 4;

[0069] A movable insert 5;

[0070] Wherein, the main body 1 is provided with a glue injection hole 6, a glue flow cavity 7 and a screw hole A1;

[0071] Wherein, the glue flow cavity 7 is located below the glue injection hole 6;

[0072] Wherein, the movable insert 5 is provided with an eccentric screw 2 hole A2;

[0073] Wherein, the eccentric screw 2 is provided with a cam 8; and,

[0074] The cam 8 is located between the nut 4 and the screw rod 3;

[0075] Among them, the eccentric screw 2 passes through the screw hole A1 and the eccentric screw 2 hole A2 to connect the movable insert 5 and the main body 1; and,

[0076] When the eccentric screw 2 is rotated, the movable insert 5 displaces along the main body 1.

[0077] For profiles with a cavity on one side and no cavity on the other side, currently during corner assembly, only the side of the profile with a cavity is connected by inserting a connecting piece into the profile cavity, lacking a corner assembly connection solution for the profile without a cavity. The side of the profile without a cavity is only connected by a flat steel sheet, which cannot achieve the effect of tightening the corner assembly and has insufficient strength.

[0078] In this embodiment, during the corner assembly process, the movable inserts connected to both ends of the corner assembly connecting piece body are respectively embedded into two profiles to be corner assembled. When the eccentric screws at both ends of the corner assembly connecting piece are rotated, during the rotation process, the contact point between the cam and the side of the movable insert close to the glue injection hole gets farther and farther away from the cam center, and the cam continuously exerts an acting force on the side of the movable insert close to the glue injection hole. Under this acting force, the movable inserts at both ends drive the two corner assembled profiles to approach the glue injection hole, tightening the two profiles, making the corner assembly more stable. Even if the profiles are under different temperature and humidity conditions, the corner assembly effect can be ensured by rotating the cam. After tightening the profiles, glue is injected into the glue flowing cavity through the glue injection hole to achieve corner sealing.

[0079] The corner assembly connecting piece of this embodiment drives the profile to approach the main body through the movable insert. Therefore, it is crucial that the connection between the movable insert and the profile has good fastening performance.

[0080] Preferably, the clip-type corner assembly connecting piece includes a connecting member 9;

[0081] Among them, the movable insert 5 includes a driving insert 10 and a driven insert 11;

[0082] Among them, the eccentric screw 2 hole A2 is located on the driving insert 10;

[0083] Among them, the driving insert 10 and the driven insert 11 are movably connected through the connecting member 9;

[0084] Among them, the driven insert 11 is used to cooperate with the driving insert 10 to clamp the profile;

[0085] Preferably, the driving insert 10 is provided with a connecting hole B1;

[0086] Among them, the driven insert 11 is provided with a connecting hole B2;

[0087] Among them, the connecting member 9 passes through the connecting hole B1 and the connecting hole B2 to connect the driving insert 10 and the driven insert 11.

[0088] In the preferred solution of this embodiment, the main body is connected to the active insert through an eccentric screw, and the active insert is connected to the driven insert through a connecting member. During use, the driven insert is placed in the groove of the profile, and the active insert is placed outside the groove. The edge of the profile groove extends inward. At this time, the edge of the profile groove is between the active insert and the driven insert. By adjusting the connecting member, the distance between the active insert and the driven insert can be reduced, so that the active insert and the driven insert clamp the edge of the profile groove, thereby ensuring good tightness of the connection between the movable insert and the profile. In one embodiment, the connecting member is a screw, the connecting holes B1 and B2 are screw holes, and the distance between the active insert and the driven insert can be adjusted by rotating the screw.

[0089] Embodiment 2:

[0090] The main body 1 is provided with a groove C11 or a protrusion C12;

[0091] Wherein, the concave or convex direction of the groove C11 or the protrusion C12 is parallel to the direction of the main body 1;

[0092] Wherein, the driven insert 11 is provided with a protrusion C21 or a groove C22;

[0093] Wherein, the protruding or concave direction of the protrusion C21 or the groove C22 is parallel to the direction of the driven insert 11;

[0094] Wherein, the protrusion C21 or the groove C22 is inserted into the groove C11 or the protrusion C12;

[0095] Wherein, when the eccentric screw 2 is rotated, when the farthest point of the cam 8 from the center contacts the side of the hole A2 of the eccentric screw 2 close to the glue injection hole 6, the protrusion C21 or the groove C22 fits with the groove C11 or the protrusion C12.

[0096] When the eccentric screw is rotated, the active insert receives a force in the same direction as the rotation direction from the eccentric screw, causing the active insert to displace along the rotation direction of the eccentric screw. Since the active insert and the driven insert are connected by a connecting member, while the active insert is subjected to a frictional force, it will give a force to the connecting member, and the connecting member will generate a force on the driven insert. The driven insert rotates under this force, resulting in different clamping effects of the driven insert and the active insert on the two side edges of the profile groove, and thus different tightening effects of the entire connection during corner assembly.

[0097] In this embodiment, the rotation of the driven insert is restricted by the insertion structure of the groove and the protrusion, so that the clamping effects of the driven insert and the active insert on the two side edges of the profile groove are the same, ensuring the same tightening effect of the entire connection during corner assembly.

[0098] Preferably, fastening teeth are provided on the adjacent side of the side where the protrusion C21 or the groove C22 is located.

[0099] In the preferred solution of this embodiment, the fastening teeth are provided to drive the profile to move closer to the inside when fastening, making the corner assembly more stable.

[0100] Embodiment 3:

[0101] A protrusion D1 is provided on the upper surface of the main body 1;

[0102] Among them, the protruding direction of the protrusion D1 is perpendicular to the main body 1;

[0103] Among them, a groove D2 is provided on the lower surface of the active insert 10;

[0104] Among them, the concave direction of the groove D2 is perpendicular to the active insert 10;

[0105] Among them, the protrusion D1 and the groove D2 are in sliding fit.

[0106] When the eccentric screw is rotated and the eccentric screw abuts against the active insert and moves forward, the active insert will receive a frictional force in the same direction as the rotation direction from the eccentric screw. Under the action of the frictional force, the active insert will displace along the rotation direction of the eccentric screw, generating a stroke along the rotation direction, so that part of the stroke of the active insert originally tightening the corner by moving along the main body is taken away by the rotation direction, thus failing to achieve the effect of tightening the corner by rotating the eccentric screw.

[0107] In this embodiment, the main body and the active insert are connected by an eccentric screw. Although the purpose of rotating the eccentric screw is to make the movable insert displace along the main body, the characteristics of the screw itself cause the eccentric screw to displace downward simultaneously when rotating, so that the screw bottom cannot rotate when contacting the profile, and continuous rotation will damage the profile. By providing a protrusion D1 on the main body, there is a cavity between the protrusion and the profile, and this cavity is used to accommodate the part of the eccentric screw that rotates downward. Through the sliding fit between the protrusion D1 and the groove D2, the position of the active insert is restricted, so that the active insert can only displace back and forth along the main body, ensuring the corner tightening effect.

[0108] Embodiment 4:

[0109] The active insert 10 includes an adjusting block 12;

[0110] Among them, the active insert 10 is provided with a through hole; and,

[0111] The through hole is close to the direction of the glue injection hole 6 and communicates with the hole A2 of the eccentric screw 2;

[0112] Among them, the adjusting block 12 is arranged in the through hole;

[0113] Among them, the contact surface between the adjusting block 12 and the eccentric screw 2 has an arc-shaped depression 13; and,

[0114] The curvature of the arc-shaped depression 13 is the same as the curvature of the cam 8.

[0115] The cam pushes the active insert to displace. Since the distance between the edge and the center of the cam is different, during the pushing process, the cam is always in line contact with the active insert. The force pushing the active insert forward always acts on one point, which easily causes the active insert to deform, thus affecting the tightening effect.

[0116] In this embodiment, through the setting of the adjusting block, during the pushing process, the cam always fits with the arc-shaped depression, changing the original line contact to surface contact, so that the active insert will not deform and ensure the corner tightening effect. In one embodiment, the contact surface of the adjusting block with the eccentric screw has two arc-shaped depressions, and the two arc-shaped depressions are connected. The purpose of such a setting is to prevent misinstallation, so that technicians do not need to consider the front and back during installation, making the installation more convenient.

[0117] During the rotation of the eccentric screw, the contact position between the cam and the active insert will change, changing from the original surface contact to line contact.

[0118] Preferably, the adjusting block 12 can displace in the through hole, and the displacement direction is perpendicular to the moving direction of the active insert 10.

[0119] In the preferred solution of this embodiment, through such a setting, during the rotation of the eccentric screw, only the initial contact needs to be surface contact. During the subsequent rotation process, the force exerted by the cam on the adjusting block can be decomposed into a force in the moving direction of the active insert and a force in the direction perpendicular to the moving direction. Under the action of the former, the adjusting block abuts against the active insert to displace, and the action of the latter can be balanced by the displacement of the adjusting block in the direction perpendicular to the moving direction of the active insert, ensuring that the contact between the adjusting screw and the adjusting block is always surface contact.

[0120] Preferably, the active insert 10 includes:

[0121] A spring piece 14;

[0122] Among them, there are connecting grooves E1 on the left and right sides of the through hole of the active insert 10;

[0123] Among them, there are connecting grooves E2 on the left and right sides of the adjusting block 12;

[0124] Among them, one end of the spring piece 14 can be inserted into the connecting groove E1; and,

[0125] The other end of the spring piece 14 can be inserted into the connecting groove E2.

[0126] In the preferred solution of this embodiment, the initial position of the adjusting block can be ensured to be the position where the adjusting block contacts the cam surface through the setting of the elastic piece.

[0127] Embodiment 5:

[0128] There is a marked position 15 on the nut 4;

[0129] Among them, the marked position 15 is used to mark the farthest position of the cam 8 from the center.

[0130] When the connecting piece is not connected to the profile, if the farthest position of the cam from the center contacts the active insert piece, the connection between the eccentric screw and the active insert piece and the main body is relatively tight, and the eccentric screw needs to be rotated in the reverse direction during the installation process before corner assembly, reducing the corner assembly efficiency.

[0131] In this embodiment, through such a setting, technicians can accurately locate the farthest position of the cam from the center, avoiding the contact between the cam and the active insert piece when the eccentric screw connects the main body and the active insert piece, and the over-tight connection affecting the installation efficiency.

[0132] Embodiment 6:

[0133] When the farthest position of the cam 8 from the center fits with the arc-shaped depression 13, the starting point of the tooth crest of the screw rod 3 near the cam 8 contacts the starting point of the tooth root of the screw hole A1.

[0134] In this embodiment, through such a setting, when the eccentric screw is rotated to the maximum position, the screw rod is just tightened with the screw hole, achieving a fastening effect.

[0135] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top part", "bottom part", "inner", "outer", "inner side", "outer side", etc.

[0136] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "join", "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0137] In the description of the embodiments of the present invention, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0138] In the description of the embodiments of the present invention, it should be understood that "-" and "~" represent the range between two numerical values, and this range includes the endpoints. For example, "A-B" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0139] In the description of the embodiments of the present invention, the term "and / or" herein merely describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0140] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clip - type corner connecting piece, characterized in that, Comprising: A main body; An eccentric screw having a screw rod and a nut; A movable insert; Wherein, the main body is provided with a glue injection hole, a glue flow cavity and a screw hole A1; Wherein, the glue flow cavity is located below the glue injection hole; Wherein, the movable insert is provided with an eccentric screw hole A2; Wherein, the eccentric screw is provided with a cam; and, The cam is located between the nut and the screw rod; Wherein, the eccentric screw passes through the screw hole A1 and the eccentric screw hole A2 to connect the movable insert and the main body; and, When the eccentric screw is rotated, the movable insert displaces along the main body; The movable insert is used for embedding profiles of a corner joint; The cam pushes the movable insert to move towards the glue injection hole to tighten the profiles.

2. The clip - type corner connecting piece according to claim 1, characterized in that, Comprising: A connecting member; Wherein, the movable insert includes a driving insert and a driven insert; Wherein, the eccentric screw hole A2 is located on the driving insert; Wherein, the driving insert and the driven insert are movably connected by the connecting member; Wherein, the driven insert is used for cooperating with the driving insert to clamp the profiles.

3. The clip - type corner connecting piece according to claim 2, characterized in that, The driving insert is provided with a connecting hole B1; Wherein, the driven insert is provided with a connecting hole B2; Wherein, the connecting member passes through the connecting hole B1 and the connecting hole B2 to connect the driving insert and the driven insert.

4. The clip - type corner connecting piece according to claim 3, characterized in that, The main body is provided with a groove C11 or a protrusion C12; Wherein, the direction of the groove C11 or the protrusion C12 being concave or convex is parallel to the direction of the main body; Wherein, the driven insert is provided with a protrusion C21 or a groove C22; Wherein, the direction of the protrusion C21 or the groove C22 being convex or concave is parallel to the direction of the driven insert; Wherein, the protrusion C21 or the groove C22 is inserted into the groove C11 or the protrusion C12; Wherein, when the eccentric screw is rotated, when the farthest point of the cam from the center contacts the side of the eccentric screw hole A2 close to the glue injection hole direction, the protrusion C21 or the groove C22 fits with the groove C11 or the protrusion C12.

5. The clip - type corner connecting piece according to claim 4, characterized in that, The adjacent side of the side where the protrusion C21 or the groove C22 is located is provided with fastening teeth.

6. The clip - type corner connecting piece according to claim 5, characterized in that, The upper surface of the main body is provided with a protrusion D1; Wherein, the direction of the protrusion D1 being convex is perpendicular to the direction of the main body; Wherein, the lower surface of the driving insert is provided with a groove D2; Wherein, the direction of the groove D2 being concave is perpendicular to the direction of the driving insert; Wherein, the protrusion D1 and the groove D2 are in sliding fit.

7. The clip-type corner connecting piece according to claim 6, characterized in that, The driving insert includes: An adjusting block; Wherein, the driving insert is provided with a through hole; and, The through hole is close to the glue injection hole direction and communicates with the eccentric screw hole A2; Wherein, the adjusting block is arranged in the through hole; Wherein, the contact surface of the adjusting block and the eccentric screw has an arc-shaped depression; and, The curvature of the arc-shaped depression is the same as the curvature of the cam.

8. The clip-type corner connecting piece according to claim 7, characterized in that, The adjusting block can displace in the through hole, and the displacement direction is perpendicular to the moving direction of the driving insert.

9. The clip-type corner connecting piece according to claim 8, characterized in that, The driving insert includes: A spring piece; Wherein, both sides of the through hole of the driving insert have connecting grooves E1; Wherein, both sides of the adjusting block have connecting grooves E2; Wherein, one end of the spring piece can be inserted into the connecting groove E1; and, The other end of the spring piece can be inserted into the connecting groove E2.

10. The clip-type corner connecting piece according to claim 9, characterized in that, The nut is provided with a marking position; Wherein, the marking position is used for marking the farthest point of the cam from the center.

11. The clip-type corner connecting piece according to claim 10, characterized in that, When the farthest point of the cam from the center fits with the arc-shaped depression, the starting point of the tooth crest near the cam on the screw contacts the starting point of the tooth bottom of the screw hole A1.

Images