Standard connection of removable door and window frames to jamb

Abstract

The application relates to a detachable standard connecting piece of a door and window outer frame and an attached frame, which is provided with a shaft sleeve, a positioning pin and an inner shaft; the inner cavity bottom end of the shaft sleeve is provided with a spring, and a pair of through holes are arranged at the upper opening position; the upper part of the spring is connected with the inner shaft; the top of the inner shaft is provided with a slot hole corresponding to the through hole, the inner shaft is fixed in the shaft sleeve through the positioning pin which is arranged in the through hole of the shaft sleeve, and the top of the inner shaft is flush with the end surface of the opening end of the shaft sleeve; the inner shaft is of an up-down combined structure and is divided into an inner shaft upper body and an inner shaft lower body; the inner shaft upper body and the inner shaft lower body are screw-connected. The application is used for connecting the attached frame and the outer frame of the door and window, realizes standardized installation, and has a simple installation process; the inner shaft is popped out and inserted into the reserved hole of the outer frame, and is rotated counterclockwise by 90 degrees to complete the installation; and the application mainly solves the wind load of the door and window, and has a certain space allowance for the displacement, settlement or thermal expansion and cold contraction of the building and the door and window, so that the deformation of the door and window is not caused.

Description

Technical Field

[0001] This invention relates to components for building installation, and particularly to a standard connector for a detachable door and window outer frame and subframe. Background Technology

[0002] With the rapid development of my country's construction industry, building quality and usage requirements have also been improved accordingly, and the requirements for the corresponding installed doors and windows have also been greatly increased. The existing door and window installation method is to fix the outer frame of the door and window to the subframe or wall with fasteners or screws. As the building's service life increases, settlement and displacement will occur, or the door and window will deform due to shrinkage. For example, with PVC materials, this can even lead to breakage and damage in severe cases.

[0003] The existing installation method requires manual judgment of the position of the outer frame and sub-frame, which requires highly skilled installers, takes a long time, is inefficient, cannot fully achieve standardized operation, and cannot achieve simple disassembly. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the existing technology and provide a standard connector for detachable door and window outer frames and subframes that improves installation efficiency, whose connectors can be used as standard parts for installation, making the installation standardized and systematic, thus making it more suitable for practical use and having industrial application value.

[0005] The technical solution to achieve the purpose of this invention is as follows: a standard connector for a detachable door and window outer frame and a subframe, comprising a bushing, a positioning pin, and an inner shaft; a spring is provided at the bottom of the inner cavity of the bushing, and a pair of through holes are provided at the upper opening position; the upper part of the spring is connected to the inner shaft; the top of the inner shaft has a slot corresponding to the through hole, and the inner shaft is fixed inside the bushing by the positioning pin inserted into the through hole of the bushing, and the top of the inner shaft is flush with the end face of the bushing opening; the inner shaft is a combined upper and lower structure, consisting of an upper inner shaft body and a lower inner shaft body; the upper and lower inner shaft bodies are threadedly connected, and the upper inner shaft body includes an inner shaft seat, protrusions, and a connecting part; there are two protrusions, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat, forming a slot between the two protrusions; the connecting part is fixed to the bottom of the inner shaft seat; the lower inner shaft body is tubular, and the upper diameter of the inner cavity of the lower inner shaft body is smaller than the lower diameter, so that there is a step in the middle position; the upper end of the spring contacts the step.

[0006] The inner shaft described in the above technical solution is an upper and lower combined structure; the upper body and the lower body of the inner shaft are threadedly connected; the circumferential surface of the connecting part has an upper thread of the inner shaft; the upper inner wall of the lower body of the inner shaft has a lower thread of the inner shaft that matches the upper thread of the inner shaft.

[0007] The inner shaft described in the above technical solution has an inner shaft external thread on its lower circumferential surface; the bushing has a bushing internal thread on its upper circumferential surface that matches the inner shaft external thread, and its lower circumferential surface is smooth.

[0008] The upper end of the bushing described in the above technical solution has a groove that matches the protrusion, and a pair of side wings are fixed symmetrically at the center of the upper end edge of the bushing; the top surface of the side wings is flush with the upper end surface of the bushing.

[0009] The protrusion described in the above technical solution is ridge-shaped, with its pointed corners facing outwards.

[0010] The upper end of the bushing described in the above technical solution has a groove that matches the protrusion; the top surface of the protrusion is a right trapezoid.

[0011] The first and second sides of the wing described in the above technical solution are set at an angle, and the second and third sides are connected by an arc edge concentric with the bushing. The first and third sides are connected to the upper edge of the bushing.

[0012] The inner shaft seat, protrusion, and connecting part described in the above technical solution are integrally formed.

[0013] The bushing and side wing described in the above technical solution are integrally formed.

[0014] After adopting the above technical solution, the present invention has the following positive effects:

[0015] (1) This invention is used to connect the subframe and the outer frame of doors and windows. The connector can be used as a universal connector and is suitable for aluminum alloy, aluminum-wood, PVC, aluminum-wood doors and windows, or fiberglass doors and windows. It achieves standardized installation and the installation process is simple. The inner shaft pops out and is inserted into the reserved hole in the outer frame, and then rotated 90° counterclockwise to complete the installation. This method mainly solves the problem of wind load on doors and windows, while providing a certain margin for displacement, settlement of the building, or thermal expansion and contraction of the doors and windows themselves, so as not to cause deformation of the doors and windows.

[0016] (2) The inner shaft of this invention adopts an upper and lower combined structure. In use, insert the bottom of the connector into the sub-frame, place the door and window frame into the sub-frame opening, and after it is in place, pull out the positioning pin on the connector. Under the action of the spring, the inner shaft pops out of the bushing, and the top of the inner shaft is inserted into the reserved groove of the outer frame. Use a special wrench to rotate the inner shaft 90° so that the side of the concave and convex parts of the inner shaft is stressed, and the installation is completed. To disassemble, use a special wrench to rotate clockwise 3 times, and the upper part of the inner shaft will separate from the lower part. The door and window outer frame can then be directly taken out from the sub-frame opening, and the disassembly is completed.

[0017] (3) The inner shaft of the present invention has an inner shaft external thread on the lower circumferential surface; the inner cavity of the bushing has a bushing internal thread that matches the inner shaft external thread on the upper circumferential surface, and the lower circumferential surface is smooth; according to the requirements, the distance can be adjusted by thread engagement. The inner shaft external thread is screwed into the bushing internal thread of the bushing inner cavity. When it is screwed in beyond the distance of the bushing internal thread, the inner shaft external thread is in a free state because the lower circumferential surface of the bushing inner cavity is smooth. At this time, the positioning pin is pulled out, the spring presses against the inner shaft, and the inner shaft will not pop out of the bushing because the bushing internal thread is locked.

[0018] (4) The inner shaft of the present invention is an upper and lower combined structure, and the upper body of the inner shaft can be unscrewed to complete the disassembly.

[0019] (5) The upper end edge of the bushing of the present invention is symmetrically fixed with a pair of side wings and a ridge-shaped protrusion with its sharp corners facing outward, which can play a positioning role and prevent rotation. Attached Figure Description

[0020] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0021] Figure 1 These are three-dimensional structural schematic diagrams of embodiments 1 and 3 of the present invention;

[0022] Figure 2 These are schematic diagrams of embodiments 1 and 3 of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the inner shaft upper body of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the lower inner shaft of the present invention;

[0025] Figure 5 These are three-dimensional structural schematic diagrams of embodiments 2, 4, 6, and 8 of the present invention;

[0026] Figure 6 These are top views of embodiments 2, 4, 6, and 8 of the present invention;

[0027] Figure 7 This is a schematic diagram of the unthreaded bushing structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the unthreaded structure of the lower outer ring of the inner shaft of the present invention;

[0029] Figure 9 This is a schematic diagram of the internal shaft with threads of the present invention;

[0030] Figure 10 This is a schematic diagram of the internal shaft without threads of the present invention. Detailed Implementation

[0031] (Example 1)

[0032] See Figures 1 to 4 The present invention comprises a bushing 1, a locating pin 2, and an inner shaft 3; a spring 4 is provided at the bottom end of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the locating pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1; the lower circumferential surface of the inner shaft 3 has an inner shaft external thread 7; the upper circumferential surface of the inner cavity of the bushing 1 has a bushing internal thread 8 that matches the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

[0033] See Figure 10 The inner shaft 3 has an upper and lower structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are integrally formed. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle. The upper end of the spring 4 contacts the step 17.

[0034] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and a pair of side wings 19 are fixed symmetrically at the center edge of the upper end of the bushing 1; the top surface of the side wings 19 is flush with the upper end surface of the bushing 1.

[0035] The protrusion 13 is shaped like a roof ridge, with its pointed corners facing outwards.

[0036] The first side 20 and the second side 21 of the side wing 19 are set at an included angle α. The second side 21 and the third side 22 are connected by an arc edge 23 concentric with the bushing 1. The first side 20 and the third side 22 are connected to the upper edge of the bushing 1. The bushing 1 and the side wing 19 are integrally formed.

[0037] (Example 2)

[0038] See Figure 5 and Figure 6The present invention comprises a bushing 1, a locating pin 2, and an inner shaft 3; a spring 4 is provided at the bottom end of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the locating pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1; the lower circumferential surface of the inner shaft 3 has an inner shaft external thread 7; the upper circumferential surface of the inner cavity of the bushing 1 has a bushing internal thread 8 that matches the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

[0039] See Figure 3 , Figure 4 and Figure 9 The inner shaft 3 has an upper and lower combined structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are threaded together. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 has an upper inner shaft thread 15 on its circumferential surface, and the connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper inner wall of the lower inner shaft body 11 has a lower inner shaft thread 16 that matches the upper inner shaft thread 15. The upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle position. The upper end of the spring 4 contacts the step 17.

[0040] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and the top surface of the protrusion 13 is a right trapezoid.

[0041] (Example 3)

[0042] See Figures 1 to 4 The present invention comprises a bushing 1, a locating pin 2, and an inner shaft 3; a spring 4 is provided at the bottom end of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the locating pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1; the lower circumferential surface of the inner shaft 3 has an inner shaft external thread 7; the upper circumferential surface of the inner cavity of the bushing 1 has a bushing internal thread 8 that matches the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

[0043] See Figure 3 , Figure 4 and Figure 9The inner shaft 3 has an upper and lower combined structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are threaded together. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 has an upper inner shaft thread 15 on its circumferential surface, and the connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper inner wall of the lower inner shaft body 11 has a lower inner shaft thread 16 that matches the upper inner shaft thread 15. The upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle position. The upper end of the spring 4 contacts the step 17.

[0044] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and a pair of side wings 19 are fixed symmetrically at the center edge of the upper end of the bushing 1; the top surface of the side wings 19 is flush with the upper end surface of the bushing 1.

[0045] The protrusion 13 is shaped like a roof ridge, with its pointed corners facing outwards.

[0046] The first side 20 and the second side 21 of the side wing 19 are set at an included angle α. The second side 21 and the third side 22 are connected by an arc edge 23 concentric with the bushing 1. The first side 20 and the third side 22 are connected to the upper edge of the bushing 1. The bushing 1 and the side wing 19 are integrally formed.

[0047] (Example 4)

[0048] See Figure 5 and Figure 6 The present invention comprises a bushing 1, a locating pin 2, and an inner shaft 3; a spring 4 is provided at the bottom end of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the locating pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1; the lower circumferential surface of the inner shaft 3 has an inner shaft external thread 7; the upper circumferential surface of the inner cavity of the bushing 1 has a bushing internal thread 8 that matches the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

[0049] See Figure 10The inner shaft 3 has an upper and lower structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are integrally formed. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle. The upper end of the spring 4 contacts the step 17.

[0050] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and the top surface of the protrusion 13 is a right trapezoid.

[0051] (Example 5)

[0052] See Figure 7 The present invention comprises a bushing 1, a positioning pin 2, and an inner shaft 3; a spring 4 is provided at the bottom of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the positioning pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1.

[0053] See Figure 10 The inner shaft 3 has an upper and lower structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are integrally formed. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle. The upper end of the spring 4 contacts the step 17.

[0054] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and a pair of side wings 19 are fixed symmetrically at the center edge of the upper end of the bushing 1; the top surface of the side wings 19 is flush with the upper end surface of the bushing 1.

[0055] The protrusion 13 is shaped like a roof ridge, with its pointed corners facing outwards.

[0056] The first side 20 and the second side 21 of the side wing 19 are set at an included angle α. The second side 21 and the third side 22 are connected by an arc edge 23 concentric with the bushing 1. The first side 20 and the third side 22 are connected to the upper edge of the bushing 1. The bushing 1 and the side wing 19 are integrally formed.

[0057] (Example 6)

[0058] See Figures 5 to 7 The present invention comprises a bushing 1, a positioning pin 2, and an inner shaft 3; a spring 4 is provided at the bottom of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the positioning pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1.

[0059] See Figure 3 , Figure 4 and Figure 9 The inner shaft 3 has an upper and lower combined structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are threaded together. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 has an upper inner shaft thread 15 on its circumferential surface, and the connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper inner wall of the lower inner shaft body 11 has a lower inner shaft thread 16 that matches the upper inner shaft thread 15. The upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle position. The upper end of the spring 4 contacts the step 17.

[0060] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and the top surface of the protrusion 13 is a right trapezoid.

[0061] (Example 7)

[0062] See Figure 3 , Figure 4 and Figure 7 The present invention comprises a bushing 1, a positioning pin 2, and an inner shaft 3; a spring 4 is provided at the bottom of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the positioning pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1.

[0063] See Figure 3 , Figure 4 and Figure 9The inner shaft 3 has an upper and lower combined structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are threaded together. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 has an upper inner shaft thread 15 on its circumferential surface, and the connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper inner wall of the lower inner shaft body 11 has a lower inner shaft thread 16 that matches the upper inner shaft thread 15. The upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle position. The upper end of the spring 4 contacts the step 17.

[0064] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and a pair of side wings 19 are fixed symmetrically at the center edge of the upper end of the bushing 1; the top surface of the side wings 19 is flush with the upper end surface of the bushing 1.

[0065] The protrusion 13 is shaped like a roof ridge, with its pointed corners facing outwards.

[0066] The first side 20 and the second side 21 of the side wing 19 are set at an included angle α. The second side 21 and the third side 22 are connected by an arc edge 23 concentric with the bushing 1. The first side 20 and the third side 22 are connected to the upper edge of the bushing 1. The bushing 1 and the side wing 19 are integrally formed.

[0067] (Example 8)

[0068] See Figures 5 to 7 The present invention comprises a bushing 1, a positioning pin 2, and an inner shaft 3; a spring 4 is provided at the bottom of the inner cavity of the bushing 1, and a pair of through holes 5 are provided at the upper opening position; the upper part of the spring 4 is connected to the inner shaft 3; the top of the inner shaft 3 has a slot 6 corresponding to the through hole 5, and the inner shaft 3 is fixed inside the bushing 1 by the positioning pin 2 inserted in the through hole 5 of the bushing 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the bushing 1.

[0069] See Figure 10 The inner shaft 3 has an upper and lower structure, consisting of an upper inner shaft body 10 and a lower inner shaft body 11. The upper inner shaft body 10 and the lower inner shaft body 11 are integrally formed. The upper inner shaft body 10 includes an integrally formed inner shaft seat 12, protrusions 13, and a connecting part 14. There are two protrusions 13, which are centrally symmetrically arranged on both sides of the top of the inner shaft seat 12, and a slot 6 is formed between the two protrusions 13. The connecting part 14 is fixed to the bottom of the inner shaft seat 12. The lower inner shaft body 11 is tubular, and the upper diameter of the inner cavity of the lower inner shaft body 11 is smaller than the lower diameter, so that there is a step 17 in the middle. The upper end of the spring 4 contacts the step 17.

[0070] The upper end of the bushing 1 has a groove 18 that matches the protrusion 13, and the top surface of the protrusion 13 is a right trapezoid.

[0071] The working principle of this invention is as follows: When in use, insert the bottom of the connector into the sub-frame, place the door and window frame into the sub-frame opening, and after it is in place, pull out the positioning pin 2 on the connector. Under the action of the spring 4, the inner shaft 3 pops out the bushing 1, and the top of the inner shaft 3 is inserted into the reserved groove of the outer frame. Use a special wrench to rotate the inner shaft 3 90° so that the side of the concave and convex parts of the inner shaft 3 is stressed, and the installation is completed.

[0072] To disassemble, use a special wrench to rotate it clockwise 3 times. The outer frame of the door or window can then be taken out directly from the sub-frame opening. The upper part of the inner shaft 3 will separate from the lower part, and the outer frame of the door or window can then be taken out directly from the sub-frame opening, thus completing the disassembly.

[0073] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detachable standard connecting piece of door and window outer frame and attached frame, having a shaft sleeve (1), a positioning pin (2) and an inner shaft (3); the inner cavity bottom end of the shaft sleeve (1) is provided with a spring (4), and the upper opening position is provided with a pair of through holes (5); the upper part of the spring (4) is connected with the inner shaft (3); the top of the inner shaft (3) has a slot hole (6) corresponding to the through hole (5), the inner shaft (3) is fixed inside the shaft sleeve (1) through the positioning pin (2) which is inserted into the through hole (5) of the shaft sleeve (1), and the top of the inner shaft (3) is flush with the opening end face of the shaft sleeve (1); characterized in that: The inner shaft (3) is an up-down structure, which is divided into an inner shaft upper body (10) and an inner shaft lower body (11). The inner shaft upper body (10) comprises an inner shaft seat (12), two protrusions (13) and a connecting part (14). The two protrusions (13) are symmetrically arranged at the top of the inner shaft seat (12), and a slot (6) is formed between the two protrusions (13). The connecting part (14) is fixed to the bottom of the inner shaft seat (12). The inner shaft lower body (11) is in a tubular shape, and the diameter of the inner cavity of the inner shaft lower body (11) is smaller at the upper part than at the lower part, so that a step part (17) is formed at the middle position. The upper end of the spring (4) is in contact with the step part (17). The inner shaft (3) is in an up-down combined structure. The inner shaft upper body (10) and the inner shaft lower body (11) are threadedly connected. The connecting part (14) is provided with inner shaft upper threads (15) on the circumferential surface. The inner shaft lower body (11) is provided with inner shaft lower threads (16) on the inner wall of the upper part, which are matched with the inner shaft upper threads (15). The lower end of the inner shaft (3) is provided with inner shaft outer threads (7) on the circumferential surface. The inner cavity of the upper end of the shaft sleeve (1) is provided with shaft sleeve inner threads (8) matched with the inner shaft outer threads (7), and the lower end of the shaft sleeve (1) is provided with a smooth surface (9). The inner shaft seat (12), the protrusions (13) and the connecting part (14) are integrally formed.

2. The detachable standard connector of the outer frame and the attached frame of the door and window according to claim 1, characterized in that: The upper end of the shaft sleeve (1) is provided with a groove (18) matched with the protrusions (13), and a pair of side wings (19) are symmetrically fixed to the edge of the upper end of the shaft sleeve (1). The top surface of the side wings (19) is flush with the upper end surface of the shaft sleeve (1).

3. The detachable standard connector of the outer frame and the attached frame of the door and window according to claim 2, characterized in that: The protrusions (13) are in a ridge shape, and the sharp corners thereof are outwardly arranged.

4. The detachable standard connector of the outer frame and the attached frame of the door and window according to claim 3, characterized in that: The first side edge and the second side edge of the side wings (19) are arranged at an angle, the second side edge and the third side edge are connected through an arc edge concentric with the shaft sleeve (1), and the first side edge and the third side edge are connected to the edge of the upper end of the shaft sleeve (1).

5. The detachable standard connector of the outer frame and the attached frame of the door and window according to claim 1, characterized in that: The upper end of the shaft sleeve (1) is provided with a groove (18) matched with the protrusions (13). The top surface of the protrusions (13) is in a right trapezoidal shape.

6. The detachable standard connector of the outer frame and the attached frame of the door and window according to claim 3, characterized in that: The shaft sleeve (1) and the side wings (19) are integrally formed.

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