阅读说明：本技术 可拆卸式的门窗外框与附框的标准连接件 (Detachable standard connecting piece for outer frame and auxiliary frame of door and window ) 是由 王兴栋 于 2018-06-29 设计创作，主要内容包括：本发明涉及一种可拆卸式的门窗外框与附框的标准连接件,具有轴套、定位销和内轴；轴套的内腔底端设置有弹簧,上部开口位置设置有一对贯穿孔；弹簧的上部连接有内轴；内轴的顶部具有与贯穿孔对应的槽孔,内轴通过穿插设置在轴套的贯穿孔内的定位销固定在轴套内部,且内轴的顶部与轴套开口端端面齐平；所述内轴为上下组合式结构,分为内轴上体和内轴下体；所述内轴上体和内轴下体螺纹连接。本发明用于连接附框和门窗的外框,实现了标准化安装,安装过程简单,内轴弹出来插进外框预留孔内,并逆时针旋转90°,完成安装,主要是解决了门窗的风荷载,而对建筑物的位移、沉降或门窗自身的热胀冷缩等,有一定的空间余量,不会因此造成门窗的变形。(The invention relates to a detachable standard connecting piece for an outer frame and an auxiliary frame of a door and window, which is provided with a shaft sleeve, a positioning pin and an inner shaft; a spring is arranged at the bottom end of the inner cavity of the shaft sleeve, and a pair of through holes is arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring is connected with an inner shaft; the top of the inner shaft is provided with a slotted hole corresponding to the through hole, the inner shaft is fixed inside the shaft sleeve through a positioning pin which is inserted into 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-and-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 in threaded connection. The invention is used for connecting the auxiliary frame and the outer frame of the door and window, realizes standardized installation, has simple installation process, enables the inner shaft to pop out to be inserted into the reserved hole of the outer frame and rotate 90 degrees anticlockwise, completes the installation, mainly solves the problem of wind load of the door and window, has certain space allowance on displacement, settlement of buildings, expansion caused by heat and contraction caused by cold of the door and window, and the like, and cannot cause deformation of the door and window.)

1. A detachable standard connecting piece for an outer frame and an auxiliary frame of a door and window is provided with a shaft sleeve (1), a positioning pin (2) and an inner shaft (3); a spring (4) is arranged at the bottom end of the inner cavity of the shaft sleeve (1), and a pair of through holes (5) is arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring (4) is connected with an inner shaft (3); the top of the inner shaft (3) is provided with a slotted hole (6) corresponding to the through hole (5), the inner shaft (3) is fixed inside the shaft sleeve (1) through a positioning pin (2) inserted into the through hole (5) of the shaft sleeve (1), and the top of the inner shaft (3) is flush with the end face of the opening end of the shaft sleeve (1); the method is characterized in that: the inner shaft (3) is of an upper and lower structure and is divided into an inner shaft upper body (10) and an inner shaft lower body (11); the inner shaft upper body (10) and the inner shaft lower body (11) are integrally formed, and the inner shaft upper body (10) comprises an inner shaft seat (12), a bulge (13) and a connecting part (14); the number of the bulges (13) is 2, the bulges are arranged on two sides of the top of the inner shaft seat (12) in a central symmetry manner, and a slotted hole (6) is formed between the two bulges (13); the connecting part (14) is fixed at the bottom of the inner shaft seat (12); the inner shaft lower body (11) is tubular, the diameter of the upper part of the inner cavity of the inner shaft lower body (11) is smaller than that of the lower part, and a step part (17) is arranged at the middle position of the inner shaft lower body; the upper end of the spring (4) is in contact with the step part (17).

2. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 1, wherein: the inner shaft (3) is of an up-and-down combined structure; the inner shaft upper body (10) is in threaded connection with the inner shaft lower body (11); an inner shaft upper thread (15) is arranged on the circumferential surface of the connecting part (14); and the inner lower shaft thread (16) matched with the inner upper shaft thread (15) is arranged on the inner wall of the upper part of the inner lower shaft body (11).

3. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 1 or 2, wherein: an inner shaft external thread (7) is arranged on the circumferential surface of the lower end of the inner shaft (3); the inner cavity of the shaft sleeve (1) is provided with a shaft sleeve internal thread (8) matched with the inner shaft external thread (7) on the circumferential surface of the upper end, and the circumferential surface of the lower end is a smooth surface (9).

4. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 1 or 2, wherein: the upper end part of the shaft sleeve (1) is provided with a groove (18) matched with the bulge (13), and the edge center of the upper end part of the shaft sleeve (1) is symmetrically fixed with a pair of side wings (19); the top surfaces of the side wings (19) are flush with the upper end surface of the shaft sleeve (1).

5. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 4, wherein: the bulge (13) is in a ridge shape, and the sharp corner of the bulge faces outwards.

6. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 5, wherein: the first side edge and the second side edge of the side wing (19) are arranged at an included 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 part of the shaft sleeve (1).

7. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 1 or 2, wherein: the upper end part of the shaft sleeve (1) is provided with a groove (18) matched with the bulge (13); the top surface of the bulge (13) is in a right trapezoid shape.

8. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 2, wherein: the inner shaft seat (12), the bulge (13) and the connecting part (14) are integrally formed.

9. The detachable standard connector for door and window frames and auxiliary frames as claimed in claim 5, wherein: the shaft sleeve (1) and the side wing (19) are integrally formed.

Technical Field

The invention relates to a component for building installation, in particular to a detachable standard connecting piece for a door and window outer frame and an auxiliary frame.

Background

With the rapid development of the building industry in China, the building quality and the use requirements are correspondingly improved, and the use requirements of correspondingly and cooperatively installed doors and windows are also greatly improved. The existing door and window mounting method is that a door and window outer frame is fixed on an auxiliary frame or a wall body through a fastener or a screw, and settlement displacement or door and window deformation along with contraction can occur along with the increase of the service life of a building, such as plastic steel materials, and even fracture and damage can occur in severe cases.

The existing installation method needs to judge the positions of the outer frame and the auxiliary frame manually, has high requirements on installation workers, needs long installation time, has low efficiency, cannot realize standardized operation completely, and cannot realize simple disassembly.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a detachable standard connecting piece for a door and window outer frame and an auxiliary frame, which improves the installation efficiency, can be used as an installation standard piece, enables the installation to be standardized and systematized, is more practical and has industrial utilization value.

The technical scheme for realizing the purpose of the invention is as follows: a detachable standard connecting piece for a door and window outer frame and an auxiliary frame is provided with a shaft sleeve, a positioning pin and an inner shaft; a spring is arranged at the bottom end of the inner cavity of the shaft sleeve, and a pair of through holes is arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring is connected with an inner shaft; the top of the inner shaft is provided with a slotted hole corresponding to the through hole, the inner shaft is fixed in the shaft sleeve through a positioning pin which is inserted 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-and-down combined structure and is divided into an inner shaft upper body and an inner shaft lower body; the inner shaft upper body is in threaded connection with the inner shaft lower body and comprises an inner shaft seat, a protrusion and a connecting part; the number of the bulges is 2, the bulges are arranged on two sides of the top of the inner shaft seat in a central symmetry manner, and a slotted hole is formed between the two bulges; the connecting part is fixed at the bottom of the inner shaft seat; the inner shaft lower body is tubular, the diameter of the upper part of the inner cavity of the inner shaft lower body is smaller than that of the lower part, and a step part is arranged at the middle position of the inner shaft lower body; the upper end of the spring is in contact with the stepped portion.

In the technical scheme, the inner shaft is of an up-and-down combined structure; the inner shaft upper body and the inner shaft lower body are in threaded connection; the circumferential surface of the connecting part is provided with an inner shaft upper thread; and the inner shaft lower threads matched with the inner shaft upper threads are arranged on the inner wall of the upper part of the inner shaft lower body.

The circumferential surface of the lower end of the inner shaft is provided with an inner shaft external thread; the inner cavity of the shaft sleeve is provided with a shaft sleeve internal thread matched with the inner shaft external thread on the circumferential surface of the upper end, and the circumferential surface of the lower end is a smooth surface.

In the technical scheme, the upper end part of the shaft sleeve is provided with a groove matched with the bulge, and a pair of side wings are symmetrically fixed at the center of the edge of the upper end part of the shaft sleeve; the top surfaces of the side wings are flush with the upper end surface of the shaft sleeve.

According to the technical scheme, the bulges are in a ridge shape, and the sharp corners of the bulges are arranged outwards.

In the technical scheme, the upper end part of the shaft sleeve is provided with a groove matched with the bulge; the top surface of the protrusion is in a right trapezoid shape.

According to the technical scheme, the first side edge and the second side edge of the side wing are arranged at an included angle, the second side edge and the third side edge are connected through the arc edge concentric with the shaft sleeve, and the first side edge and the third side edge are connected to the edge of the upper end of the shaft sleeve.

According to the technical scheme, the inner shaft seat, the protrusion and the connecting part are integrally formed.

According to the technical scheme, the shaft sleeve and the side wing are integrally formed.

After the technical scheme is adopted, the invention has the following positive effects:

(1) the invention is used for connecting the auxiliary frame and the outer frame of the door and window, the connecting piece can be used as a universal connecting piece, is suitable for aluminum alloy, aluminum wood, plastic steel, aluminum wood door and window or glass fiber reinforced plastic door and window, realizes standardized installation, has simple installation process, and can complete the installation by ejecting the inner shaft to insert into the reserved hole of the outer frame and rotating the inner shaft by 90 degrees anticlockwise. The method mainly solves the problem of wind load of the door and window, has certain space allowance for displacement, settlement of a building or expansion and contraction of the door and window, and cannot cause deformation of the door and window.

(2) When the inner shaft is used, the bottom of the connecting piece is inserted into the auxiliary frame, the door and window frame is placed into the opening of the auxiliary frame, the positioning pin on the connecting piece is pulled out after the door and window frame is in place, the inner shaft is popped out of the shaft sleeve under the action of the spring, the top end of the inner shaft is inserted into the reserved groove of the outer frame, the inner shaft is rotated by 90 degrees by using a special spanner, and the side face of the concave-convex part of the inner shaft is stressed, so that the installation is completed. When the door and window outer frame is to be disassembled, the special spanner is used for clockwise rotating for 3 circles, the inner shaft upper body can be separated from the lower body, and the door and window outer frame can be directly taken out from the attached frame hole to complete the disassembly.

(3) The circumference surface of the lower end of the inner shaft is provided with an inner shaft external thread; the inner cavity of the shaft sleeve is provided with a shaft sleeve inner thread matched with the inner shaft outer thread on the circumferential surface of the upper end, and the circumferential surface of the lower end is a smooth surface; according to the demand, can adopt screw-thread fit to adjust the distance, interior external screw thread screw in axle sleeve internal thread of axle sleeve inner chamber, when the screw in surpassed the internal screw thread distance of axle sleeve, because the inner chamber lower extreme periphery of axle sleeve is the plain noodles, interior external screw thread is in free state, at this moment, extracts the locating pin, and interior axle is tightly pushed up to the spring, and interior axle can not pop out the axle sleeve because the chucking of axle sleeve internal thread.

(4) The inner shaft of the invention is of a vertical combined structure, and the upper body of the inner shaft can be screwed out, thereby completing the disassembly.

(5) The upper end edge of the shaft sleeve is centrally and symmetrically fixed with a pair of side wings, and the bulge is in a roof ridge shape, and the sharp corner of the bulge is arranged outwards, so that the positioning effect can be realized, and the rotation is prevented.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic perspective view of embodiments 1 and 3 of the present invention;

FIG. 2 is a schematic structural diagram of embodiments 1 and 3 of the present invention;

FIG. 3 is a schematic structural view of the inner shaft upper body of the present invention;

FIG. 4 is a schematic structural view of the inner shaft lower body of the present invention;

FIG. 5 is a schematic perspective view of embodiments 2, 4, 6 and 8 of the present invention;

FIG. 6 is a top view of examples 2, 4, 6 and 8 of the present invention;

FIG. 7 is a schematic view of the threadless construction of the bushing of the present invention;

FIG. 8 is a schematic structural view of the outer race of the inner shaft lower body of the present invention without threads;

FIG. 9 is a schematic view of the construction of the inner axial contained thread of the present invention;

fig. 10 is a schematic view of the inner shaft of the present invention without threads.

Detailed Description

(example 1)

Referring to fig. 1 to 4, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1; an inner shaft external thread 7 is arranged on the circumferential surface of the lower end of the inner shaft 3; the upper circumferential surface of the inner cavity of the shaft sleeve 1 is provided with a shaft sleeve internal thread 8 matched with the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

Referring to fig. 10, the inner shaft 3 is of an up-and-down structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 and the inner shaft lower body 11 are integrally formed, and the inner shaft upper body 10 comprises an integrally formed inner shaft seat 12, a bulge 13 and a connecting part 14; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, so that a step part 17 is arranged at the middle position of the inner shaft lower body; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the edge center of the upper end of the shaft sleeve 1 is symmetrically fixed with a pair of side wings 19; the top surfaces of the wings 19 are flush with the upper end surface of the sleeve 1.

The bulge 13 is in the shape of a ridge, and the sharp angle of the bulge faces outwards.

The first side edge 20 and the second side edge 21 of the side wing 19 form an included angle a, the second side edge 21 and the third side edge 22 are connected through an arc edge 23 concentric with the shaft sleeve 1, the first side edge 20 and the third side edge 22 are connected to the edge of the upper end of the shaft sleeve 1, and the shaft sleeve 1 and the side wing 19 are integrally formed.

(example 2)

Referring to fig. 5 and 6, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1; an inner shaft external thread 7 is arranged on the circumferential surface of the lower end of the inner shaft 3; the upper circumferential surface of the inner cavity of the shaft sleeve 1 is provided with a shaft sleeve internal thread 8 matched with the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

Referring to fig. 3, 4 and 9, the inner shaft 3 is of an up-and-down combined structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 is in threaded connection with the inner shaft lower body 11, and the inner shaft upper body 10 comprises an inner shaft seat 12, a bulge 13 and a connecting part 14 which are integrally formed; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; an inner shaft upper thread 15 is arranged on the circumferential surface of the connecting part 14, and the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the inner shaft lower thread 16 matched with the inner shaft upper thread 15 is arranged on the inner wall of the upper part of the inner shaft lower body 11, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, and a step part 17 is arranged at the middle position of the inner cavity; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the top surface of the bulge 13 is in a right-angled trapezoid shape.

(example 3)

Referring to fig. 1 to 4, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1; an inner shaft external thread 7 is arranged on the circumferential surface of the lower end of the inner shaft 3; the upper circumferential surface of the inner cavity of the shaft sleeve 1 is provided with a shaft sleeve internal thread 8 matched with the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

Referring to fig. 3, 4 and 9, the inner shaft 3 is of an up-and-down combined structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 is in threaded connection with the inner shaft lower body 11, and the inner shaft upper body 10 comprises an inner shaft seat 12, a bulge 13 and a connecting part 14 which are integrally formed; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; an inner shaft upper thread 15 is arranged on the circumferential surface of the connecting part 14, and the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the inner shaft lower thread 16 matched with the inner shaft upper thread 15 is arranged on the inner wall of the upper part of the inner shaft lower body 11, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, and a step part 17 is arranged at the middle position of the inner cavity; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the edge center of the upper end of the shaft sleeve 1 is symmetrically fixed with a pair of side wings 19; the top surfaces of the wings 19 are flush with the upper end surface of the sleeve 1.

The bulge 13 is in the shape of a ridge, and the sharp angle of the bulge faces outwards.

The first side 20 and the second side 21 of the side wing 19 form an included angle a, the second side 21 and the third side 22 are connected through an arc edge 23 concentric with the shaft sleeve 1, and the first side 20 and the third side 22 are connected to the edge of the upper end of the shaft sleeve 1. Both the sleeve 1 and the wings 19 are integrally formed.

(example 4)

Referring to fig. 5 and 6, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1; an inner shaft external thread 7 is arranged on the circumferential surface of the lower end of the inner shaft 3; the upper circumferential surface of the inner cavity of the shaft sleeve 1 is provided with a shaft sleeve internal thread 8 matched with the inner shaft external thread 7, and the lower circumferential surface is a smooth surface 9.

Referring to fig. 10, the inner shaft 3 is of an up-and-down structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 and the inner shaft lower body 11 are integrally formed, and the inner shaft upper body 10 comprises an integrally formed inner shaft seat 12, a bulge 13 and a connecting part 14; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, so that a step part 17 is arranged at the middle position of the inner shaft lower body; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the top surface of the bulge 13 is in a right-angled trapezoid shape.

(example 5)

See fig. 7, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1.

Referring to fig. 10, the inner shaft 3 is of an up-and-down structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 and the inner shaft lower body 11 are integrally formed, and the inner shaft upper body 10 comprises an integrally formed inner shaft seat 12, a bulge 13 and a connecting part 14; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, so that a step part 17 is arranged at the middle position of the inner shaft lower body; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the edge center of the upper end of the shaft sleeve 1 is symmetrically fixed with a pair of side wings 19; the top surfaces of the wings 19 are flush with the upper end surface of the sleeve 1.

The bulge 13 is in the shape of a ridge, and the sharp angle of the bulge faces outwards.

The first side edge 20 and the second side edge 21 of the side wing 19 form an included angle a, the second side edge 21 and the third side edge 22 are connected through an arc edge 23 concentric with the shaft sleeve 1, the first side edge 20 and the third side edge 22 are connected to the edge of the upper end of the shaft sleeve 1, and the shaft sleeve 1 and the side wing 19 are integrally formed.

(example 6)

Referring to fig. 5 to 7, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1.

Referring to fig. 3, 4 and 9, the inner shaft 3 is of an up-and-down combined structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 is in threaded connection with the inner shaft lower body 11, and the inner shaft upper body 10 comprises an inner shaft seat 12, a bulge 13 and a connecting part 14 which are integrally formed; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; an inner shaft upper thread 15 is arranged on the circumferential surface of the connecting part 14, and the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the inner shaft lower thread 16 matched with the inner shaft upper thread 15 is arranged on the inner wall of the upper part of the inner shaft lower body 11, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, and a step part 17 is arranged at the middle position of the inner cavity; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the top surface of the bulge 13 is in a right-angled trapezoid shape.

(example 7)

Referring to fig. 3, 4 and 7, the present invention has a sleeve 1, a pilot pin 2 and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1.

Referring to fig. 3, 4 and 9, the inner shaft 3 is of an up-and-down combined structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 is in threaded connection with the inner shaft lower body 11, and the inner shaft upper body 10 comprises an inner shaft seat 12, a bulge 13 and a connecting part 14 which are integrally formed; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; an inner shaft upper thread 15 is arranged on the circumferential surface of the connecting part 14, and the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the inner shaft lower thread 16 matched with the inner shaft upper thread 15 is arranged on the inner wall of the upper part of the inner shaft lower body 11, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, and a step part 17 is arranged at the middle position of the inner cavity; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the edge center of the upper end of the shaft sleeve 1 is symmetrically fixed with a pair of side wings 19; the top surfaces of the wings 19 are flush with the upper end surface of the sleeve 1.

The bulge 13 is in the shape of a ridge, and the sharp angle of the bulge faces outwards.

The first side 20 and the second side 21 of the side wing 19 form an included angle a, the second side 21 and the third side 22 are connected through an arc edge 23 concentric with the shaft sleeve 1, and the first side 20 and the third side 22 are connected to the edge of the upper end of the shaft sleeve 1. Both the sleeve 1 and the wings 19 are integrally formed.

(example 8)

Referring to fig. 5 to 7, the present invention has a sleeve 1, a dowel pin 2, and an inner shaft 3; a spring 4 is arranged at the bottom end of the inner cavity of the shaft sleeve 1, and a pair of through holes 5 are arranged at the opening position of the upper part of the shaft sleeve; the upper part of the spring 4 is connected with an inner shaft 3; the top of the inner shaft 3 is provided with a slotted hole 6 corresponding to the through hole 5, the inner shaft 3 is fixed inside the shaft sleeve 1 through a positioning pin 2 inserted into the through hole 5 of the shaft sleeve 1, and the top of the inner shaft 3 is flush with the end face of the opening end of the shaft sleeve 1.

Referring to fig. 10, the inner shaft 3 is of an up-and-down structure and is divided into an upper inner shaft body 10 and a lower inner shaft body 11; the inner shaft upper body 10 and the inner shaft lower body 11 are integrally formed, and the inner shaft upper body 10 comprises an integrally formed inner shaft seat 12, a bulge 13 and a connecting part 14; the number of the bulges 13 is 2, the bulges are arranged on two sides of the top of the inner shaft seat 12 in a central symmetry manner, and a slotted hole 6 is formed between the two bulges 13; the connecting part 14 is fixed at the bottom of the inner shaft seat 12; the inner shaft lower body 11 is tubular, the diameter of the upper part of the inner cavity of the inner shaft lower body 11 is smaller than that of the lower part, so that a step part 17 is arranged at the middle position of the inner shaft lower body; the upper end of the spring 4 is in contact with the step 17.

The upper end of the shaft sleeve 1 is provided with a groove 18 matched with the bulge 13, and the top surface of the bulge 13 is in a right-angled trapezoid shape.

The working principle of the invention is as follows: when the door and window frame is used, the bottom of the connecting piece is inserted into the auxiliary frame, the door and window frame is placed into the opening of the auxiliary frame, the positioning pin 2 on the connecting piece is pulled out after the door and window frame is in place, the inner shaft 3 is popped out of the shaft sleeve 1 under the action of the spring 4, the top end of the inner shaft 3 is inserted into the reserved groove of the outer frame, the inner shaft 3 is rotated by 90 degrees through a special spanner, and the side face of the concave-convex part of the inner shaft 3 is stressed, so.

When the door and window outer frame is to be disassembled, the special spanner is used for clockwise rotating for 3 circles, the door and window outer frame can be directly taken out from the attached frame hole, the upper body of the inner shaft 3 can be separated from the lower body, and the door and window outer frame can be directly taken out from the attached frame hole to complete the disassembly.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.