Composite mullion connecting piece capable of being quickly assembled

Abstract

The invention relates to the technical field of mullion connecting pieces, in particular to a composite mullion connecting piece capable of being quickly assembled, which comprises an A surface connecting piece matched and connected with an A surface of an aluminum alloy door and window frame for use and a B surface connecting piece matched and connected with a B surface of the aluminum alloy door and window frame for use; the A-face connecting piece comprises an A-face movable aluminum plate, an A-face adjusting device and an A-face locking device. The B-face connecting piece comprises a B-face locking device and a B-face adjusting device. The A-face adjusting device is rotated to enable the A-face locking device to extend into the A-face clamping groove of the door and window frame for fixed connection, the B-face adjusting device is rotated to enable the B-face locking device to extend into the B-face clamping groove of the door and window frame for fixed connection, and therefore the mullion is fixed to the door and window frame. According to the method, profiles produced by a set of aluminum profile die are used for manufacturing all aluminum profiles of the mullion connecting piece, the aluminum profiles are cut into the required sizes through a profile saw, and then the aluminum profiles are combined with the steel sheets with the matched sizes, so that a complete mullion connecting piece is formed, and automatic assembly is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of mullion connectors, and particularly to a composite mullion connector capable of rapid assembly. Background Art

[0002] The structural profiles of doors and windows include side mullions and middle mullions. Among them, the side mullion is the frame of the door and window, the part connected to the wall, and the middle mullion is the profile that is not connected to the wall and is mainly used for support and glass partitioning.

[0003] There are mainly the following two connection methods for the middle mullions of existing aluminum alloy doors and windows on the market: 1) Self-tapping screw connection. In this connection method, the door and window frame is assembled first, and then the middle mullion is installed on the door and window frame. The middle mullion profile cavity has a self-tapping screw hole in an open form. The self-tapping screw is used to connect it to the window frame, and the window frame needs to be pre-drilled to screw the middle mullion with the self-tapping screw. There are technical difficulties such as structural defects and large assembly difficulty in this connection method of the middle mullion. The quality is not easy to control. First of all, this connection method requires pre-drilling on the window frame, but the positioning position of the drilling is not easy to control, and it is difficult for workers to operate and cannot be quickly connected and assembled. Moreover, the screw hole in the middle mullion cavity is in an open form. After the self-tapping screw is screwed in, the screw hole will open, its strength is insufficient, and the safety is greatly reduced. Since the self-tapping screw penetrates from the outside of the window frame and the cavity is permeable inside and outside, there is a serious risk of water leakage and water ingress.

[0004] 2) Connector connection. In this connection method, the connector is first installed on the door and window frame and the middle mullion, and then the middle mullions are connected together in sequence according to the drawing, and then the door and window frame is connected. Finally, pins or special screws are used for assembly. Although this connection method solves the connection strength and glue injection waterproof function, the assembly difficulty increases and the assembly efficiency is low. First, the connector needs to be installed on the frame mullion of the door and window, and the middle mullion part is fixed on the frame mullion with a set screw. Since the set screw needs to be tightened when fixing the middle mullion part, it is difficult for workers to operate and it is difficult to control the accuracy of positioning. Moreover, all the middle mullions and window frames of the door and window need to be assembled together at one time before the final connection work can be done. The assembly process is cumbersome, the production efficiency is extremely low, the flatness of the middle mullion end face and the window frame is not easy to control, and secondary leveling is required, the processing speed is slow, and the production cost is high. In addition, for this kind of middle mullion connector, a mold needs to be opened for each size, there is no universality, the mold opening cost is high, and the inventory is large.

[0005] Therefore, it is very necessary to develop a new type of middle mullion connector to solve the above technical problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a composite mullion connector capable of rapid assembly that saves molds, has accurate positioning during assembly, improves processing and installation efficiency, and enhances connection strength.

[0007] To solve the above technical problems, the technical solution of the present invention is: a composite middle stile connector capable of being quickly assembled, including an A-side connector used in cooperation with the A side of the aluminum alloy door and window frame and a B-side connector used in cooperation with the B side of the aluminum alloy door and window frame; The A-side connector includes an A-side fixed aluminum plate and two parallel A-side steel plates. One ends of the two A-side steel plates are respectively perpendicular to the A-side fixed aluminum plate and fixedly connected to its two ends. An A-side movable aluminum plate is slidably installed between the other ends of the two A-side steel plates. An A-side adjusting device is rotatably installed between the two A-side steel plates. An A-side locking device is installed at the bottom of the A-side movable aluminum plate. The A-side adjusting device can drive the A-side movable aluminum plate to move upward, triggering the A-side locking device to fix the A side of the middle stile in the corresponding card slot on the A side of the door and window frame; The B-side connector includes two symmetrically and parallelly arranged B-side fixed aluminum plates. Two parallel B-side steel plates are vertically and fixedly clamped between the two ends of the B-side fixed aluminum plates. A cavity is formed by the two B-side fixed aluminum plates and the two B-side steel plates. A B-side locking device is installed in the cavity. A B-side adjusting device is rotatably installed between the two B-side steel plates. The B-side adjusting device can drive the B-side locking device to act to fix the B side of the middle stile in the corresponding card slot on the B side of the door and window frame.

[0008] As a preferred technical solution, an upper A-side clamping groove is provided in the upper part of the A-side fixed aluminum plate, and a middle A-side clamping groove is provided in the middle of the A-side fixed aluminum plate; an upper A-side clamping block and a middle A-side clamping block are respectively bent on the upper and middle parts of one side of the A-side steel plate, and an upper A-side sliding block and a lower A-side sliding block are respectively bent on the upper and lower parts of the other side of the A-side steel plate. The upper A-side clamping block is fixedly connected to the upper A-side clamping groove, and the middle A-side clamping block is fixedly connected to the middle A-side clamping groove; An upper A-side sliding groove is provided at the top of the A-side movable aluminum plate, and a lower A-side sliding groove is provided at the lower part of the A-side movable aluminum plate. The upper A-side sliding block is slidably installed in the upper A-side sliding groove, and the lower A-side sliding block is slidably installed in the lower A-side sliding groove.

[0009] As a preferred technical solution, the A-side adjusting device includes an A-side driven wheel rotatably mounted on one of the A-side steel plates, and further includes an A-side driving wheel rotatably mounted on the other A-side steel plate. An A-side hexagonal steel shaft is installed between the A-side driving wheel and the A-side driven wheel. The outer circumferences of the A-side driven wheel and the A-side driving wheel are both circumferential surfaces, and the inner cores of the A-side driven wheel and the A-side driving wheel are hexagonal prism holes that match the A-side hexagonal steel shaft. An A-side upward eccentric wheel is sleeved on the A-side hexagonal steel shaft, and an A-side spring is also sleeved on the A-side hexagonal steel shaft between the A-side upward eccentric wheel and the A-side driving wheel.

[0010] As a preferred technical solution, an A-side upward through hole is formed in the A-side movable aluminum plate, and the A-side upward through hole is sleeved on the A-side upward eccentric wheel. When the A-side upward eccentric wheel rotates along with the A-side hexagonal steel shaft, it drives the A-side movable aluminum plate to move upward.

[0011] As a preferred technical solution, the A-side locking device is an L-shaped inclined card slot provided at the bottom of the A-side movable aluminum plate. An L-shaped A-side serrated plate is movably clamped in the L-shaped inclined card slot, and an A-side serrated plate return spring is installed between the L-shaped A-side serrated plate and the A-side movable aluminum plate.

[0012] As a preferred technical solution, an upper B-side clamping slot is formed in the upper part of the B-side fixed aluminum plate, and a middle B-side clamping slot is formed in the middle of the B-side fixed aluminum plate. Upper B-side clamping blocks are respectively bent and provided on both sides of the upper part of the B-side steel plate, and middle B-side clamping blocks are respectively bent and provided on both sides of the middle of the B-side steel plate. The upper B-side clamping blocks are fixedly connected to the upper B-side clamping slot, and the middle B-side clamping blocks are fixedly connected to the middle B-side clamping slot.

[0013] As a preferred technical solution, the B-side adjusting device includes a B-side driven wheel rotatably mounted on one of the B-side steel plates, and further includes a B-side driving wheel rotatably mounted on the other B-side steel plate. A B-side hexagonal steel shaft is installed between the B-side driving wheel and the B-side driven wheel. The outer circumferences of the B-side driven wheel and the B-side driving wheel are both circumferential surfaces, and the inner cores of the B-side driven wheel and the B-side driving wheel are hexagonal prism holes that match the B-side hexagonal steel shaft. Two B-side upward eccentric wheels and one B-side downward eccentric wheel are sleeved on the B-side hexagonal steel shaft. The B-side downward eccentric wheel is located between the two B-side upward eccentric wheels, and a B-side spring is also sleeved on the B-side hexagonal steel shaft between the B-side upward eccentric wheel and the B-side driving wheel.

[0014] As a preferred technical solution, the B-side locking device includes a B-side movable upward aluminum plate and a B-side movable downward aluminum plate. An outward-turning claw is provided at the bottom of the B-side movable upward aluminum plate, and a support plate is provided at the bottom of the B-side movable downward aluminum plate. The B-side adjusting device can drive the B-side movable downward aluminum plate to move downward so that the support plate spreads the outward-turning claw to both sides, and at the same time drives the B-side movable upward aluminum plate to move upward so that the outward-turning claw is fixed in the corresponding card slot on the B side of the door and window frame.

[0015] As a preferred technical solution, two parallel clamping plates are symmetrically arranged at intervals at the lower end of the B-side movable upward aluminum plate. The outward-turning claws are symmetrically arranged at the bottom of the parallel clamping plates. A sliding inclined surface is provided at the connection between the parallel clamping plates and the outward-turning claws. The B-side movable downward aluminum plate is located between the two parallel clamping plates. The outer end surfaces of the support plates are respectively attached to the adjacent sliding inclined surfaces. When the support plates move downward along the sliding inclined surfaces, the outward-turning claws can be spread to both sides. A serrated fixing plate is fixedly installed between the two support plates.

[0016] As a preferred technical solution, two B-side upward through holes are opened at the top of the B-side movable upward aluminum plate. The B-side upward through holes are respectively sleeved on two B-side upward eccentric wheels. A B-side downward through hole is also opened at the top of the B-side movable downward aluminum plate. The B-side downward through hole is sleeved on the B-side downward eccentric wheel.

[0017] As a preferred technical solution, the B-side movable downward aluminum plate includes an upper aluminum plate and a lower aluminum plate that are combined by mortise and tenon. The B-side downward through hole is opened at the top of the upper aluminum plate. The thickness of the lower aluminum plate is greater than that of the upper aluminum plate. The thickness of the lower aluminum plate is the same as the thickness of the lower end of the B-side movable upward aluminum plate.

[0018] Due to the adoption of the above technical solution, a composite mullion connector capable of rapid assembly is provided, which includes an A-side connector used for mating and connecting with the A side of an aluminum alloy door and window frame and a B-side connector used for mating and connecting with the B side of the aluminum alloy door and window frame; the A-side connector includes an A-side fixed aluminum plate and two parallel A-side steel plates. One end of each of the two A-side steel plates is perpendicular to the A-side fixed aluminum plate and fixedly connected to its two ends. An A-side movable aluminum plate is slidably installed between the other ends of the two A-side steel plates. An A-side adjusting device is rotatably installed between the two A-side steel plates. An A-side locking device is installed at the bottom of the A-side movable aluminum plate. The A-side adjusting device can drive the A-side movable aluminum plate to move upward, triggering the A-side locking device to fix the A side of the mullion in the corresponding card slot on the A side of the door and window frame; the B-side connector includes two symmetrically and parallelly arranged B-side fixed aluminum plates. Two parallel B-side steel plates are vertically and fixedly clamped between the two ends of the B-side fixed aluminum plates. The two B-side fixed aluminum plates and the two B-side steel plates enclose a cavity. A B-side locking device is installed in the cavity. A B-side adjusting device is rotatably installed between the two B-side steel plates. The B-side adjusting device can drive the B-side locking device to act to fix the B side of the mullion in the corresponding card slot on the B side of the door and window frame; the beneficial effects of the present invention are as follows: The A-side connector and the B-side connector are respectively pre-installed on the A side and the B side of the mullion profile, and then docked with the A side and the B side of the door and window frame. Rotate the A-side adjusting device to extend the A-side locking device into the A-side card slot of the door and window frame for fixed connection, and rotate the B-side adjusting device to extend the B-side locking device into the B-side card slot of the door and window frame for fixed connection, so as to fix the mullion on the door and window frame. The present invention changes the structure, production method and process of the original door and window mullion connector. From the original fixed aluminum profile mold (one extrusion mold is required for each size to produce the profile), it is changed to the profile produced by using a set of aluminum profile molds, and all the aluminum profile sizes of the mullion connectors can be made. Using this set of aluminum profile long materials, they are cut into the required sizes by a profile saw, and then combined with steel sheets of matching sizes to form a complete mullion connector.

[0019] (1) Solve the problem that a mold needs to be opened for each size of the original mullion connector. In this application, only one set of aluminum profile molds needs to be opened to make all the aluminum profile sizes of the mullion connectors; only one set of steel sheet punching and shearing molds needs to be opened and combined with the aluminum profiles to make all the steel sheet sizes of the mullion connectors.

[0020] (2) Change the existing connection method of the door and window mullion connection, realize rapid assembly, more accurate positioning, improve work efficiency, and enhance connection strength.

[0021] (3) Solve the technical and processing process defects that the door and window mullion cannot be automatically assembled, so that the door and window mullion connection can be automatically assembled and the production process can be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention. Figure 1 Schematic diagram of the three-dimensional structure of the A-side connecting member of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the B-side connecting piece of the present invention; Figure 3 yes Figure 1 A-direction view in; Figure 4 yes Figure 3 Cross-sectional view along the BB direction; Figure 5 This is a cross-sectional view of the A-surface connector of the present invention perpendicular to the hexagonal steel axis of the A-surface; Figure 6 It is a structural schematic diagram of the movable aluminum plate on the A side and the locking device on the A side of the A side connector of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the A-side fixed aluminum plate and the B-side fixed aluminum plate of the present invention; Figure 8 yes Figure 2 C-direction view in; Figure 9 yes Figure 8 Cross-sectional view in the middle DD direction; Figure 10 This is a cross-sectional view of the B-side connector of the present invention perpendicular to the hexagonal steel axis of the B-side; Figure 11 It is a partial structural diagram of the B-side connecting member of the present invention; Figure 12 This is a schematic structural diagram of the movable downwardly movable aluminum plate on the B-side connecting member of the present invention; Figure 13 This is a schematic structural diagram of the movable upwardly movable aluminum plate on the B-side connecting member of the present invention; Figure 14 Schematic diagram of the matching structure of the B-side steel plate and the B-side fixed aluminum plate of the present invention; Figure 15 It is a partial structural diagram of the B-side connecting member of the present invention; Figure 16 It is a use effect diagram of the present invention.

[0023] In the figure: 1 - A - side connecting member; 11 - A - side fixed aluminum plate; 111 - Upper clamping groove on the A - side; 112 - Middle clamping groove on the A - side; 12 - A - side steel plate; 121 - Upper clamping block on the A - side; 122 - Middle clamping block on the A - side; 123 - Upper sliding block on the A - side; 124 - Lower sliding block on the A - side; 13 - A - side movable aluminum plate; 131 - Upper sliding groove on the A - side; 132 - Lower sliding groove on the A - side; 133 - Upper moving through - hole on the A - side; 14 - A - side adjusting device; 141 - A - side driven wheel; 142 - A - side driving wheel; 143 - A - side hexagonal steel shaft; 144 - Upper moving eccentric wheel on the A - side; 145 - A - side spring; 15 - A - side locking device; 151 - L - shaped inclined clamping groove; 152 - L - shaped serrated plate on the A - side; 153 - Serrated plate return spring on the A - side; 2 - B - side connecting member; 21 - B - side fixed aluminum plate; 211 - Upper clamping groove on the B - side; 212 - Middle clamping groove on the B - side; 22 - B - side steel plate; 221 - Upper clamping block on the B - side; 222 - Middle clamping block on the B - side; 223 - Limiting block on the B - side; 23 - B - side locking device; 231 - B - side movable upward - moving aluminum plate; 2311 - Everted clamping claws; 2312 - Parallel clamping plates; 2313 - Sliding inclined plane; 2314 - Upper moving through - hole on the B - side; 232 - B - side movable downward - moving aluminum plate; 2321 - Upper aluminum plate; 2322 - Lower aluminum plate; 2323 - Supporting plate; 2324 - Serrated fixing plate; 2325 - Lower moving through - hole on the B - side; 24 - B - side adjusting device; 241 - B - side driven wheel; 242 - B - side driving wheel; 243 - B - side hexagonal steel shaft; 244 - Upper moving eccentric wheel on the B - side; 245 - Lower moving eccentric wheel on the B - side; 246 - B - side spring; 3 - Door and window frame. Detailed implementation manners

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those of ordinary skill in the art can recognize that, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the accompanying drawings and the description are illustrative in nature and are not used to limit the protection scope of the claims.

[0025] As Figures 1 to 16As shown together, a composite mullion connector capable of rapid assembly includes an A-side connector 1 for mating connection with the 3A surface of an aluminum alloy door and window frame and a B-side connector 2 for mating connection with the 3B surface of the aluminum alloy door and window frame; the A-side connector 1 includes an A-side fixed aluminum plate 11 and two parallel A-side steel plates 12. One end of each of the two A-side steel plates 12 is perpendicular to the A-side fixed aluminum plate 11 and fixedly connected to its two ends. An A-side movable aluminum plate 13 is slidably installed between the other ends of the two A-side steel plates 12. An A-side adjusting device 14 is rotatably installed between the two A-side steel plates 12. An A-side locking device 14 is installed at the bottom of the A-side movable aluminum plate 13. The A-side adjusting device 14 can drive the A-side movable aluminum plate 13 to move upward, triggering the A-side locking device 14 to fix the A side of the mullion in the corresponding card slot on the 3A surface of the door and window frame; the B-side connector 2 includes two symmetrically and parallelly arranged B-side fixed aluminum plates 21. Two parallel B-side steel plates 22 are perpendicularly and fixedly clamped between the two ends of the B-side fixed aluminum plates 21. The two B-side fixed aluminum plates 21 and the two B-side steel plates 22 enclose a cavity. A B-side locking device 23 is installed in the cavity. A B-side adjusting device 24 is rotatably installed between the two B-side steel plates 22. The B-side adjusting device 24 can drive the B-side locking device 23 to act to fix the B side of the mullion in the corresponding card slot on the 3B surface of the door and window frame; pre-install the A-side connector 1 and the B-side connector 2 on the A side and the B side of the mullion profile respectively, and then dock them with the 3A surface and the 3B surface of the door and window frame. Rotate the A-side adjusting device 14 to extend the A-side locking device 14 into the A-side card slot of the door and window frame for fixed connection. Rotate the B-side adjusting device 24 to extend the B-side locking device 23 into the B-side card slot of the door and window frame for fixed connection. In this way, the mullion is fixed on the door and window frame 3. The present invention changes the structure, production method and process of the original door and window mullion connector. From the original fixed aluminum profile mold (one extrusion mold is required for each size to produce the profile), it is changed to using a set of aluminum profile molds to produce profiles, and all the aluminum profile sizes of the mullion connectors can be made. Using this set of aluminum profile long materials, they are cut into the required sizes by a profile saw and then combined with steel sheets of matching sizes to form a complete mullion connector.

[0026] The present invention solves the problem that a mold needs to be opened for each size of the original mullion connector. Only one set of aluminum profile molds needs to be opened to make all the aluminum profile sizes of the mullion connectors; only one set of steel sheet punching and shearing molds needs to be opened, and combined with the aluminum profiles, all the steel sheet sizes of the mullion connectors can be made; it changes the existing connection method of the door and window mullion, realizes rapid assembly, has more accurate positioning, improves work efficiency, and enhances connection strength; it changes the technical and processing process defects that the door and window mullion cannot be automatically assembled, enables the automatic assembly of the door and window mullion connection, and changes the production process.

[0027] Such as Figure 3 、 Figure 5 andFigure 7 As shown together, on the upper part of the A-side fixed aluminum plate 11, an upper A-side clamping groove 111 is provided, and in the middle of the A-side fixed aluminum plate 11, a middle A-side clamping groove 112 is provided; on one side of the A-side steel plate 12, an upper A-side clamping block 121 and a middle A-side clamping block 122 are bent respectively, and on the other side of the A-side steel plate 12, an upper A-side sliding block 123 and a lower A-side sliding block 124 are bent respectively. The upper A-side clamping block 121 is fixedly connected to the upper A-side clamping groove 111, and the middle A-side clamping block 122 is fixedly connected to the middle A-side clamping groove 112; in this way, both ends of the A-side fixed aluminum plate 11 are fixedly connected to the A-side steel plate 12 together. On the top of the A-side movable aluminum plate 13, an upper A-side sliding groove 131 is provided, and on the lower part of the A-side movable aluminum plate 13, a lower A-side sliding groove 132 is provided. The upper A-side sliding block 123 is slidably installed in the upper A-side sliding groove 131, and the lower A-side sliding block 124 is slidably installed in the lower A-side sliding groove 132. The A-side movable aluminum plate 13 can slide upward along the upper A-side sliding groove 131 and the lower A-side sliding groove 132 under the action of the A-side adjusting device 14 to achieve locking with the door and window frame 3.

[0028] As Figure 4 and Figure 5 As shown together, the A-side adjusting device 14 includes an A-side driven wheel 141 rotatably installed on one of the A-side steel plates 12, and also includes an A-side driving wheel 142 rotatably installed on the other A-side steel plate 12. An A-side hexagonal steel shaft 143 is installed between the A-side driving wheel 142 and the A-side driven wheel 141. The outer peripheries of the A-side driven wheel 141 and the A-side driving wheel 142 are both circumferential surfaces, and the inner cores of the A-side driven wheel 141 and the A-side driving wheel 142 are hexagonal prism holes matching the A-side hexagonal steel shaft 143; an upper A-side eccentric wheel 144 is sleeved on the A-side hexagonal steel shaft 143, and an A-side spring 145 is also sleeved on the A-side hexagonal steel shaft 143 between the upper A-side eccentric wheel 144 and the A-side driving wheel 142. Both the A-side driving wheel 142 and the A-side driven wheel 141 are cylindrical stepped shapes, and are respectively rotatably installed on the A-side steel plate 12 and cannot slip off. Both ends of the A-side hexagonal steel shaft 143 extend into the A-side driving wheel 142 and the A-side driven wheel 141 respectively. When the A-side driving wheel 142 rotates, it drives the A-side hexagonal steel shaft 143 to rotate, drives the A-side driven wheel 141 to rotate, and drives the upper A-side eccentric wheel 144 installed on the A-side hexagonal steel shaft 143 to rotate. The upper A-side eccentric wheel 144 drives the components in contact with it to move up and down. The A-side spring 145 can ensure that the A-side driving wheel 142 can elastically expand and contract on the A-side steel plate 12, which is convenient for installation, and its elasticity ensures that the upper A-side eccentric wheel 144 does not axially displace.

[0029] As Figure 5 and Figure 6As shown together, an upward displacement through hole 133 is formed on the movable aluminum plate 13 of surface A. The upward displacement through hole 133 of surface A is sleeved on an upward displacement eccentric wheel 144 of surface A. When the upward displacement eccentric wheel 144 of surface A rotates along with the hexagonal steel shaft 143 of surface A, it drives the movable aluminum plate 13 of surface A to move upward. The upward displacement through hole 133 of surface A is an oval hole. The initial position of the upward displacement eccentric wheel 144 of surface A is that the eccentric part is at the lower end. When the upward displacement eccentric wheel 144 of surface A rotates 180°, the eccentric part rotates to the upper end, driving the movable aluminum plate 13 of surface A to move upward.

[0030] As Figure 5 and Figure 6 As shown together, a locking device 14 of surface A is an L-shaped inclined card slot 151 arranged at the bottom of the movable aluminum plate 13 of surface A. An L-shaped sawtooth plate 152 of surface A is movably clamped in the L-shaped inclined card slot 151. A sawtooth plate return spring 153 of surface A is installed between the L-shaped sawtooth plate 152 of surface A and the movable aluminum plate 13 of surface A. The inclination angle of the L-shaped sawtooth plate 152 of surface A is the same as that of the L-shaped inclined card slot 151. When the movable aluminum plate 13 of surface A moves upward, the L-shaped sawtooth plate 152 of surface A moves obliquely upward along the L-shaped inclined card slot 151 and just clamps into the card slot on the 3A surface of the door and window frame. Moreover, the combination of the sawteeth increases the friction force, ensuring the connection strength.

[0031] As Figure 10 and Figure 14 As shown together, an upper clamping groove 211 of surface B is formed in the upper part of the fixed aluminum plate 21 of surface B. A middle clamping groove 212 of surface B is formed in the middle part of the fixed aluminum plate 21 of surface B. Upper clamping blocks 221 of surface B are respectively bent and arranged on both sides of the upper part of the steel plate 22 of surface B. Middle clamping blocks 222 of surface B are respectively bent and arranged on both sides of the middle part of the steel plate 22 of surface B. The upper clamping blocks 221 of surface B are fixedly connected with the upper clamping groove 211 of surface B. The middle clamping blocks 222 of surface B are fixedly connected with the middle clamping groove 212 of surface B. In this way, both ends of the fixed aluminum plate 21 of surface B are fixedly connected with both ends of the steel plate 22 of surface B respectively, forming a stable cavity structure.

[0032] As Figure 11 and Figure 15As shown together, the B-side adjusting device 24 includes a B-side driven wheel 241 rotatably mounted on one of the B-side steel plates 22, and further includes a B-side driving wheel 242 rotatably mounted on the other B-side steel plate 22. A B-side hexagonal steel shaft 243 is installed between the B-side driving wheel 242 and the B-side driven wheel 241. The outer peripheries of the B-side driven wheel 241 and the B-side driving wheel 242 are both circumferential surfaces, and the inner cores of the B-side driven wheel 241 and the B-side driving wheel 242 are hexagonal prism holes that cooperate with the B-side hexagonal steel shaft 243. Two B-side upward displacement eccentric wheels 244 and one B-side downward displacement eccentric wheel 245 are sleeved on the B-side hexagonal steel shaft 243. The B-side downward displacement eccentric wheel 245 is located between the two B-side upward displacement eccentric wheels 244. A B-side spring 246 is also sleeved on the B-side hexagonal steel shaft 243 between the B-side upward displacement eccentric wheel 244 and the B-side driving wheel 242. Both the B-side driving wheel 242 and the B-side driven wheel 241 are cylindrical and stepped, and are respectively rotatably mounted on the B-side steel plate 22 and cannot slip off. The two ends of the B-side hexagonal steel shaft 243 respectively extend into the B-side driving wheel 242 and the B-side driven wheel 241. When the B-side driving wheel 242 rotates, it drives the B-side hexagonal steel shaft 243 to rotate, drives the B-side driven wheel 241 to rotate, and drives the B-side upward displacement eccentric wheel 244 and the B-side downward displacement eccentric wheel 245 mounted on the B-side hexagonal steel shaft 243 to rotate respectively. The B-side upward displacement eccentric wheel 244 drives the components in contact with it to move upward. The B-side downward displacement eccentric wheel 245 drives the components in contact with it to move downward. The B-side spring 246 can ensure that the B-side driving wheel 242 can elastically expand and contract on the B-side steel plate 22, which is convenient for installation, and its elasticity ensures that the B-side upward displacement eccentric wheel 244 does not axially displace.

[0033] As Figures 10 to 13 As shown together, the B-side locking device 23 includes a B-side movable upward displacement aluminum plate 231 and a B-side movable downward displacement aluminum plate 232. The bottom of the B-side movable upward displacement aluminum plate 231 is provided with an outward-turning claw 2311, and the bottom of the B-side movable downward displacement aluminum plate 232 is provided with a support plate 2323. The B-side adjusting device 24 can drive the B-side movable downward displacement aluminum plate 232 to move downward so that the support plate 2323 spreads the outward-turning claw 2311 to both sides, and at the same time drives the B-side movable upward displacement aluminum plate 231 to move upward so that the outward-turning claw 2311 is fixed in the corresponding card slot on the 3B side of the door and window frame.

[0034] As a preferred technical solution, the lower end of the movable upward aluminum plate 231 on the B side is provided with two parallel clamping plates 2312 arranged symmetrically at intervals, the bottom of the parallel clamping plates 2312 are symmetrically provided with outward-turning claws 2311, and the connection between the parallel clamping plates 2312 and the outward-turning claws 2311 is provided with a sliding slope 2313. The movable downward aluminum plate 232 on the B side is located between the two parallel clamping plates 2312, and the outer end faces of the support plates 2323 are respectively fitted with the adjacent sliding slopes 2313. When the support plates 2323 move downward along the sliding slopes 2313, the outward-turning claws 2311 can be pushed to both sides, and a serrated fixing plate 2324 is fixedly installed between the two support plates 2323. The bottom end of the B-side steel plate 22 is bent and provided with a B-side stopper 223. The width of the B-side stopper 223 is equal to the distance between the two support plates 2323. This allows the support plate 2323 to be limited in position when it moves downward with the B-side movable downward aluminum plate 232, preventing it from shifting left or right. Because the outer surface of the support plate 2323 is tightly attached to the parallel clamping plate 2312, and the sliding slope 2313 between the parallel clamping plate 2312 and the support plate 2323 acts as a guide, the parallel clamping plate 2312 is forced to open outward when the support plate 2323 moves downward. Since the B-side movable downward aluminum plate 232 moves downward simultaneously with the B-side movable upward aluminum plate 231, this drives the outward-turning clamping claw 2311 to move upward. The combined movement of the outward-turning clamping claw 2311 results in both opening and moving upward, ultimately engaging with the slot on the B-side of the door and window frame 3. The serrated fixing plate 2324 moves downward along with the supporting plate 2323 and rests against the door and window frame 3, thereby achieving double fixation and positioning.

[0035] like Figure 9 and Figure 13 As shown, the top of the movable upward-moving aluminum plate 231 for the B-side is provided with two B-side upward-moving through-holes 2314, which are respectively mounted on the two B-side upward-moving eccentrics 244. The top of the movable downward-moving aluminum plate 232 for the B-side is also provided with a B-side downward-moving through-hole 2325, which is mounted on the B-side downward-moving eccentric 245. Both the B-side upward-moving through-holes 2314 and 2325 are elliptical holes. In the initial position, the eccentric of the B-side upward-moving eccentric 244 faces downward. When the B-side upward-moving eccentric 244 rotates 180°, the eccentric rotates to the upper end, driving the movable upward-moving aluminum plate 231 upward. In the initial position, the eccentric of the B-side downward-moving eccentric 245 faces upward. When the B-side upward-moving eccentric 244 rotates 180°, the eccentric rotates to the lower end, driving the movable downward-moving aluminum plate 232 downward.

[0036] like Figure 10 、 Figure 11 and Figure 12As shown together, the B-side movable downward aluminum plate 232 includes an upper aluminum plate 2321 and a lower aluminum plate 2322 connected together by mortise and tenon joints. The B-side downward through hole 2325 is opened at the top of the upper aluminum plate 2321. The thickness of the lower aluminum plate 2322 is greater than that of the upper aluminum plate 2321. The thickness of the lower aluminum plate 2322 is consistent with the thickness of the lower end of the B-side movable upward aluminum plate 231. The upper aluminum plate 2321 and the lower aluminum plate 2322 are designed as a mortise and tenon structure for easy installation. Since only the upper ends of the two need to be partially connected, the thickness of the lower aluminum plate 2322 is greater than that of the upper aluminum plate 2321 to provide the support plate 2323 with sufficient thickness and strength to support the outward-turning claws 2311. The thin upper thickness saves installation space for the B-side adjustment device 24.

[0037] The present invention has the following advantages: (1) The original problem of making molds for each size of the stile connector is changed. This application only requires making a set of aluminum profile molds to make all the aluminum profile sizes of the stile connector; only requires making a set of steel sheet punching and shearing molds, which can be combined with aluminum profiles to make all the steel sheet sizes of the stile connector.

[0038] (2) Changing the existing door and window stile connection method to achieve rapid assembly, more accurate positioning, improved work efficiency, and enhanced connection strength.

[0039] (3) By changing the technical and processing defects that prevent the automatic assembly of the door and window stiles, the door and window stile connections can be automatically assembled and the production process can be changed.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite mullion connector capable of rapid assembly, characterized in that: It includes an A - side connecting piece (1) used for mating and connecting with the A - side of the aluminum alloy door and window frame (3) and a B - side connecting piece (2) used for mating and connecting with the B - side of the aluminum alloy door and window frame (3); The A - side connecting piece (1) includes an A - side fixed aluminum plate (11) and two parallel A - side steel plates (12). One ends of the two A - side steel plates (12) are respectively perpendicular to the A - side fixed aluminum plate (11) and fixedly connected to its two ends. An A - side movable aluminum plate (13) is slidably installed between the other ends of the two A - side steel plates (12). An A - side adjusting device (14) is rotatably installed between the two A - side steel plates (12). An A - side locking device (15) is installed at the bottom of the A - side movable aluminum plate (13). The A - side adjusting device (14) can drive the A - side movable aluminum plate (13) to move upward, triggering the A - side locking device (15) to fix the A - side of the mullion in the corresponding card slot on the A - side of the door and window frame (3); The B - side connecting piece (2) includes two symmetrically and parallelly arranged B - side fixed aluminum plates (21). Two parallel B - side steel plates (22) are vertically and fixedly clamped between the two ends of the B - side fixed aluminum plates (21). A cavity is formed by the two B - side fixed aluminum plates (21) and the two B - side steel plates (22). A B - side locking device (23) is installed in the cavity. A B - side adjusting device (24) is rotatably installed between the two B - side steel plates (22). The B - side adjusting device (24) can drive the B - side locking device (23) to act to fix the B - side of the mullion in the corresponding card slot on the B - side of the door and window frame (3).

2. The composite mullion connector capable of rapid assembly according to claim 1, wherein: An upper A - side clamping groove (111) is opened at the upper part of the A - side fixed aluminum plate (11), and a middle A - side clamping groove (112) is opened at the middle part of the A - side fixed aluminum plate (11); On one side of the A - side steel plate (12), an upper A - side clamping block (121) and a middle A - side clamping block (122) are respectively bent. On the other side of the A - side steel plate (12), an upper A - side sliding block (123) and a lower A - side sliding block (124) are respectively bent. The upper A - side clamping block (121) is fixedly connected to the upper A - side clamping groove (111), and the middle A - side clamping block (122) is fixedly connected to the middle A - side clamping groove (112); An upper A - side sliding groove (131) is arranged at the top of the A - side movable aluminum plate (13), and a lower A - side sliding groove (132) is arranged at the lower part of the A - side movable aluminum plate (13). The upper A - side sliding block (123) is slidably installed in the upper A - side sliding groove (131), and the lower A - side sliding block (124) is slidably installed in the lower A - side sliding groove (132).

3. The composite mullion connector capable of rapid assembly according to claim 1, characterized in that: The A-side adjusting device (14) includes an A-side driven wheel (141) rotatably mounted on one of the A-side steel plates (12), and further includes an A-side driving wheel (142) rotatably mounted on the other A-side steel plate (12). An A-side hexagonal steel shaft (143) is installed between the A-side driving wheel (142) and the A-side driven wheel (141). The outer circumferences of the A-side driven wheel (141) and the A-side driving wheel (142) are both circumferential surfaces, and the inner cores of the A-side driven wheel (141) and the A-side driving wheel (142) are hexagonal prism holes that match the A-side hexagonal steel shaft (143); an A-side upward eccentric wheel (144) is sleeved on the A-side hexagonal steel shaft (143), and an A-side spring (145) is also sleeved on the A-side hexagonal steel shaft (143) between the A-side upward eccentric wheel (144) and the A-side driving wheel (142); an A-side upward through hole (133) is formed in the A-side movable aluminum plate (13), and the A-side upward through hole (133) is sleeved on the A-side upward eccentric wheel (144). When the A-side upward eccentric wheel (144) rotates along with the A-side hexagonal steel shaft (143), it drives the A-side movable aluminum plate (13) to move upward.

4. The composite mullion connector capable of rapid assembly according to claim 3, characterized in that: The A-side locking device (15) is an L-shaped inclined card slot (151) provided at the bottom of the A-side movable aluminum plate (13). An L-shaped A-side serrated plate (152) is movably clamped in the L-shaped inclined card slot (151), and an A-side serrated plate return spring (153) is installed between the L-shaped A-side serrated plate (152) and the A-side movable aluminum plate (13).

5. The composite mullion connector capable of rapid assembly according to claim 1, characterized in that: An upper B-side clamping groove (211) is formed in the upper part of the B-side fixed aluminum plate (21), and a middle B-side clamping groove (212) is formed in the middle of the B-side fixed aluminum plate (21). Upper B-side clamping blocks (221) are respectively bent and provided on both sides of the upper part of the B-side steel plate (22), and middle B-side clamping blocks (222) are respectively bent and provided on both sides of the middle of the B-side steel plate (22). The upper B-side clamping blocks (221) are fixedly connected to the upper B-side clamping groove (211), and the middle B-side clamping blocks (222) are fixedly connected to the middle B-side clamping groove (212).

6. The composite mullion connector capable of rapid assembly according to claim 1, characterized in that: The B-side adjusting device (24) includes a B-side driven wheel (241) rotatably mounted on one of the B-side steel plates (22), and also includes a B-side driving wheel (242) rotatably mounted on the other B-side steel plate (22). A B-side hexagonal steel shaft (243) is installed between the B-side driving wheel (242) and the B-side driven wheel (241). The outer circumferences of the B-side driven wheel (241) and the B-side driving wheel (242) are both circumferential surfaces, and the inner cores of the B-side driven wheel (241) and the B-side driving wheel (242) are hexagonal prism holes that match the B-side hexagonal steel shaft (243). Two B-side upward displacement eccentric wheels (244) and one B-side downward displacement eccentric wheel (245) are sleeved on the B-side hexagonal steel shaft (243). The B-side downward displacement eccentric wheel (245) is located between the two B-side upward displacement eccentric wheels (244). A B-side spring (246) is also sleeved on the B-side hexagonal steel shaft (243) between the B-side upward displacement eccentric wheel (244) and the B-side driving wheel (242).

7. The composite mullion connector capable of rapid assembly according to claim 6, characterized in that: The B-side locking device (23) includes a B-side movable upward aluminum plate (231) and a B-side movable downward aluminum plate (232). The bottom of the B-side movable upward aluminum plate (231) is provided with an outward-turning claw (2311), and the bottom of the B-side movable downward aluminum plate (232) is provided with a support plate (2323). The B-side adjusting device (24) can drive the B-side movable downward aluminum plate (232) to displace downward so that the support plate (2323) spreads the outward-turning claw (2311) to both sides, and at the same time drives the B-side movable upward aluminum plate (231) to displace upward so that the outward-turning claw (2311) is fixed in the corresponding card slot on the B-side of the door and window frame (3).

8. The composite mullion connector capable of rapid assembly according to claim 7, wherein: The lower end of the B-side movable upward aluminum plate (231) is provided with two parallel clamping plates (2312) arranged symmetrically at intervals. The bottom of the parallel clamping plates (2312) is symmetrically provided with the outward-turning claw (2311). A sliding inclined surface (2313) is provided at the connection between the parallel clamping plates () and the outward-turning claw (2311). The B-side movable downward aluminum plate (232) is located between the two parallel clamping plates (2312). The outer end surfaces of the support plates (2323) are respectively attached to the adjacent sliding inclined surfaces (2313). When the support plates (2323) displace downward along the sliding inclined surfaces (2313), the outward-turning claw (2311) can be spread to both sides. A serrated fixing plate (2324) is fixedly installed between the two support plates (2323).

9. The composite mullion connector capable of rapid assembly according to claim 8, characterized in that: Two B-side upward displacement through holes (2314) are opened at the top of the B-side movable upward aluminum plate (231). The B-side upward displacement through holes (2314) are respectively sleeved on the two B-side upward displacement eccentric wheels (244). A B-side downward displacement through hole (2325) is also opened at the top of the B-side movable downward aluminum plate (232). The B-side downward displacement through hole (2325) is sleeved on the B-side downward displacement eccentric wheel (245).

10. The composite mullion connector capable of rapid assembly according to claim 9, characterized in that: The B-side movable downward aluminum plate (232) includes an upper aluminum plate (2321) and a lower aluminum plate (2322) joined together by mortise and tenon joints. The B-side downward through hole (2325) is opened at the top of the upper aluminum plate (2321). The thickness of the lower aluminum plate (2322) is greater than the thickness of the upper aluminum plate (2321), and the thickness of the lower aluminum plate (2322) is the same as the thickness of the lower end of the B-side movable upward aluminum plate (231).

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