Self-locking, sliding and tilting door and window components

Abstract

This invention discloses a self-locking, tilting-inward sliding door and window component, comprising: an upper slide, a handle, and a lower slide; the upper slide consists of a left upper slide and a right upper slide; the lower slide consists of a left lower slide and a right lower slide; the left and right upper slides, the handle, and the left and right lower slides are fixedly connected by a transmission rod; both sides of the upper slide are provided with steering angles; the lower slide is provided with corner brackets, and the right side of the lower slide is connected to the steering angle of the upper slide through the corner brackets; the left side of the lower slide is connected to the lower end of the handle through the corner brackets; the upper end of the handle is connected to the steering angle of the upper slide. Compared with the prior art, the advantages of this invention are: the disclosed self-locking, tilting-inward sliding door and window component, with an upper slide, a lower slide, and a handle between the upper and lower slides, uses a positioning swing arm to restrict its swing, and allows for left and right pushing and pulling movement, suitable for doors or windows, and moves synchronously along a track, making it very convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of door and window accessories, and more particularly to a door and window component capable of self-locking, translating and tilting inwards. Background Art

[0002] When the door and window are closed, the cam is usually installed on the rotating shaft, and the cam is driven to rotate by the rotation of the door and window. When positioning, the cam is used to position the opening angle of the door and window. When the existing cam is installed, the cam directly contacts the piston, and the cam pushes the piston to move; when the farthest end of the cam contacts the piston, the spring in the closer is compressed under the action of the piston, and the door and window are positioned under the action of the cam; and when the door leaf continues to rotate and drives the cam to rotate, because the cam directly rotates over the highest point, and due to the action of the hydraulic pressure and spring in the closer, the piston recovery speed is slower than the cam speed, so the cam and the piston are easily separated, affecting the normal use of the cam. At the same time, the existing cam can only be used for the installation of left-hand or right-hand doors and windows, which limits the scope of use, increases production costs, and has a complex structure.

[0003] Therefore, how to provide a self-locking, translational, inward-tilting door and window component that can solve the above-mentioned problems is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, the present invention provides a self-locking, translational and inward-tilting door and window component with the characteristics of simple structure, convenient use, wide application range and low cost.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The self-locking translational inward tilting door and window component is characterized in that it comprises: an upper pulley, a handle and a lower pulley; the upper pulley is composed of a left upper pulley and a right upper pulley; the lower pulley is composed of a left lower pulley and a right lower pulley; the left upper pulley and the right upper pulley, the handle and the left lower pulley and the right lower pulley are fixedly connected by a transmission rod; steering angles are provided on both sides of the upper pulley; an angle code piece is provided on the lower pulley, and the right side of the lower pulley is connected to the steering angle of the upper pulley through the angle code piece; the left side of the lower pulley is connected to the lower end of the handle through the angle code piece; the upper end of the handle is connected to the upper pulley The steering angle is connected; wherein the upper pulley is mainly composed of a wheel frame, a bracket, a main rocker and an auxiliary rocker; the wheel frame and the bracket are divided into left and right parts, and the left and right parts of the wheel frame are connected by a connecting rod; the wheel frame is provided with a positioning piece, a pulley and a spring tongue piece, one end of the main rocker is fixed to the wheel frame by a fixing piece, and the other end is connected to one end of the auxiliary rocker through a rotating shaft, a limiting groove is provided on the top of the auxiliary rocker, and a limiting rod is provided in the limiting groove, one end of the limiting rod is arranged in the limiting groove, and the other end is fixed to the main rocker through a rotating shaft; the bracket is provided with a base and a positioning column, and the auxiliary rocker The other end is connected to the base through a rotating shaft, and a positioning groove is provided at the bottom of the auxiliary rocker, and the positioning column corresponds to the position of the positioning groove; wherein, the main rocker is fixed to the wheel frame through a hook nail, a spring tongue is provided on one side of the main rocker, and a fixing member is provided on the other side, and two grooves are provided on the main rocker, and the spring tongue is connected to the latch tongue, and when the main rocker is unfolded, the latch tongue is engaged with the groove on one side, and when the main rocker is closed, it is engaged with the groove on the other side; when the auxiliary rocker is closed, the bottom positioning groove of the auxiliary rocker is engaged with the positioning column on the bracket, and at the same time, the limit rod slides in the limit groove, so that the main rocker and the auxiliary rocker are folded together. ;A connecting head is provided at one end of the lower slide, and a limit plate is connected to the other end, and a swing arm groove is provided at the center, and a pulley is provided at the bottom; a swing arm is built in the swing arm groove, a chuck is provided at one end of the swing arm, and is fixed in the swing arm groove by a pin shaft, and a positioning hole is provided on the other end, and a concave point and a convex block are provided on the chuck, and self-locking spring tongues and movable limit members are respectively provided on both sides of the chuck, and the movable limit member includes a movable block, a pull rod and a slider; the pull rod is arranged in the sliding groove, a slider is fixed at one end of the pull rod, and the other end is connected to the movable block; a bent hook is provided at the end of the movable block, and the movable block is connected to the positioning hook.

[0007] Preferably, in the above-mentioned self-locking translational inward-tilting door and window component, the auxiliary swing arm and the main swing arm are connected together through a rotating shaft, and there is a gap between the auxiliary swing arm and the main swing arm.

[0008] Preferably, in the above-mentioned self-locking translational inward-tilting door and window component, one end of the limiting rod is provided with a sliding piece, and the other end is fixedly connected to the main rocker arm through a rotating shaft, and the sliding piece is located in the limiting groove.

[0009] Preferably, in the above-mentioned self-locking translational inward-tilting door and window component, the lower slides are connected together by a connecting rod, the corner code piece is fixed to the lower slide by a rotating shaft, and a combination piece is provided on the rotating shaft.

[0010] Preferably, in the above-mentioned self-locking, translational and inward-tilting door and window component, a spring groove and a sliding groove are provided inside the lower carriage and on both sides of the swing arm groove; the self-locking spring tongue includes a spring and a clamping column, the spring is located in the spring groove, one end of which is connected to the clamping column, and the other end is fixed to the lower carriage.

[0011] Preferably, in the above-mentioned self-locking translational inward-tilting door and window component, the corner code piece is provided with a fixing groove and a plurality of positioning holes; the assembly is composed of a flat plate and a fixing cylinder, the flat plate is provided with a plurality of positioning holes, the fixing cylinder is welded to the bottom of the flat plate, the fixing cylinder is embedded in the fixing groove, and a rotating shaft is provided above and below the inside of the fixing cylinder, the rotating shaft is fixed to the bottom of the fixing groove through a bearing and a fixing cylinder, and its bottom is fixed to the bottom of the fixing groove by a retaining spring, and the corner code piece is fixed to the lower slide at the same time.

[0012] Preferably, in the above-mentioned self-locking translational inward-tilting door and window component, the left and right parts of the wheel frame and the bracket have the same structure.

[0013] Preferably, in the above-mentioned self-locking, translational and inward-tilting door and window component, a lock box is provided on the handle, and the upper pulley and the lower pulley drive the lock box by rotating the handle, the lock box is connected to the transmission rod, the transmission rod is connected to the steering angle, and the steering angle drives the positioning column on the upper pulley to achieve synchronization and the switch moves sideways.

[0014] It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) A self-locking, translationally movable, inward-tilting door and window component disclosed, which has an upper pulley and a lower pulley and a handle between the upper and lower pulleys, and is capable of limiting swinging by positioning a swing arm, and can be pushed or pulled left and right, and is suitable for doors or windows, and can be synchronously moved along a track, and is very convenient to use;

[0016] (2) The upper pulley fixes the wheel frame and the bracket to the door, window or door frame respectively, and the main and auxiliary swing rods swing. The limit rods, limit grooves, fixing parts, positioning parts and positioning grooves provided on the upper pulley cooperate with each other to limit the main and auxiliary swing rods, and at the same time play the role of merging and unfolding;

[0017] (3) A self-locking sliding tongue and a movable limiter are provided on the lower slide. The limiter is controlled by the movable limiter to control the movement of the positioning hook and is fixed in cooperation with the limiter block on the limiter plate. The self-locking spring tongue is positioned in cooperation with the concave point on the swing arm to complete the opening and closing actions. A stable rotating part is formed by combining an angle code part with an assembly part. A bearing is provided inside the assembly part to reduce friction during rotation and extend its service life. The rotating shaft is fixed to the angle code part by a retaining spring. At the same time, positioning holes are provided on the angle code part and the assembly part to facilitate installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 Accompanying drawing is the front view of upper pulley of the present invention.

[0021] Figure 3 Accompanying drawing is the rear view of upper pulley of the present invention.

[0022] Figure 4 The accompanying drawing is a schematic structural diagram of the upper pulley of the present invention when it is opened.

[0023] Figure 5 The accompanying drawing is an enlarged view of the A portion of the upper pulley of the present invention.

[0024] Figure 6 The accompanying drawing is a schematic diagram of the overall structure of a lower slide of the present invention.

[0025] Figure 7 The accompanying drawing is a schematic diagram of the three-dimensional structure of a lower slide of the present invention.

[0026] Figure 8 Accompanying drawing is the bottom view of the lower slide of the present invention.

[0027] Fig. 9 The accompanying drawing is a side view of a lower slide of the present invention.

[0028] Fig.10 The accompanying drawing is a schematic diagram of the internal structure of a lower slide of the present invention.

[0029] Fig.11 The accompanying drawing is a schematic diagram of the exploded structure of the corner code piece of the present invention.

[0030] Fig.12The accompanying drawings show the use of the present invention Figure 1 .

[0031] Fig.13 The accompanying drawings show the use of the present invention Figure 2 . DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please refer to the attached Figure 1-12 , is a self-locking, translational, inward-tilting door and window component disclosed in the present invention, specifically comprising:

[0034] The upper pulley 10, the handle 20 and the lower pulley 30; the upper pulley 10 is composed of a left upper pulley 10 and a right upper pulley 10; the lower pulley 30 is composed of a left lower pulley 30 and a right lower pulley 30; the left upper pulley 10 and the right upper pulley 10, the handle 20 and the left lower pulley 30 and the right lower pulley 30 are fixedly connected by a transmission rod 40; wherein, both sides of the upper pulley 10 are provided with a steering angle 101; the lower pulley 30 is provided with an angle code 301, and the right side of the lower pulley 30 is connected to the steering angle 101 of the upper pulley 10 through the angle code 301; the left side of the lower pulley 30 is connected to the lower end of the handle 20 through the angle code 301; the upper end of the handle 20 is connected to the The steering angle 101 is connected; the upper pulley 10 is composed of a left upper pulley 10 and a right upper pulley 10; the lower pulley 30 is composed of a left lower pulley 30 and a right lower pulley 30; the upper left pulley 10 and the upper right pulley 10, the handle 20 and the left lower pulley 30 and the right lower pulley 30 are fixedly connected by a transmission rod 40. The upper pulley 10 is mainly composed of a wheel frame 102, a bracket 103, a main swing rod 104 and a secondary swing rod 105; the wheel frame 102 and the bracket 103 are divided into left and right parts, and the left and right parts of the wheel frame 102 are connected by a connecting rod 50; the wheel frame 102 is provided with a positioning member, a pulley 106 and a tongue member 107, and one end of the main swing rod 104 is fixed by a fixing member 108 The auxiliary swing rod 105 is fixed on the wheel frame 102, and the other end is connected to one end of the auxiliary swing rod 105 through the rotating shaft 302. The top of the auxiliary swing rod 105 is provided with a limiting groove 109, and a limiting rod 110 is provided in the limiting groove 109. One end of the limiting rod 110 is set in the limiting groove 109, and the other end is fixed to the main swing rod 104 through the rotating shaft 302; the bracket 103 is provided with a base 111 and a positioning column 112, the other end of the auxiliary swing rod 105 is connected to the base 111 through the rotating shaft 302, and the bottom of the auxiliary swing rod 105 is provided with a positioning groove 113, and the positioning column 112 corresponds to the position of the positioning groove 113; wherein, the main swing rod 104 is fixed to the wheel frame 102 by a hook nail 114, and a spring tongue is provided on one side of the main swing rod 104 The main swing arm 104 is provided with a piece 107, and a fixing piece 108 is provided on the other side. Two grooves 116 are provided on the end of the main swing arm 104, and the spring tongue piece 107 is connected to the latch tongue 117; when the main swing arm 104 is unfolded, the latch tongue 117 is engaged with the groove 116 on one side, and when the main swing arm 104 is closed, it is engaged with the groove 116 on the other side; when the auxiliary swing arm 105 is closed, the bottom positioning groove 113 thereof is engaged with the positioning column 112 on the bracket 103, and the limiting rod 110 slides in the limiting groove 109, so that the main swing arm 104 and the auxiliary swing arm 105 are folded together; one end of the lower carriage 30 is provided with a connector, and the other end is connected to the limiting plate 314, and a swing arm 304 groove is provided at the center, and a pulley 106 is provided at the bottom;The swing arm 304 slot has a swing arm 304 built in it. One end of the swing arm 304 is provided with a chuck 305, which is fixed in the swing arm 304 slot by a pin shaft. The other end is provided with a positioning hole. The chuck 305 is provided with a concave point 306 and a convex block 307. The two sides of the chuck 305 are respectively provided with a self-locking spring tongue 308 and a movable stopper 309. The movable stopper 309 includes a movable block 310, a pull bar 316 and a slider 317. The pull bar 316 is arranged in the sliding slot 315. One end of the pull bar 316 is fixed with a slider 317, and the other end is connected to the movable block 310. The end of the movable block 310 is provided with a hook, and the movable block 310 is connected to the positioning hook 312. ;

[0035] In order to further optimize the above technical solution, when the auxiliary rocker arm 105 is closed, its bottom positioning groove 113 is engaged with the positioning column 112 on the bracket 103, and at the same time the limiting rod 110 slides in the limiting groove 109, so that the main rocker arm 104 and the auxiliary rocker arm 105 are folded together, and at the same time the positioning groove 113 is engaged with the positioning column 112, and the main rocker arm 104 is limited by the fixing part 108; when opening, each action runs in reverse.

[0036] In order to further optimize the above technical solution, the secondary rocker arm 105 and the primary rocker arm 104 are connected together via a rotating shaft 302 , and there is a gap between the secondary rocker arm 105 and the primary rocker arm 104 .

[0037] In order to further optimize the above technical solution, a sliding piece is provided at one end of the limiting rod 110 , and the other end is fixedly connected to the main rocker 104 via a rotating shaft 302 . The sliding piece is located in the limiting groove 109 .

[0038] In order to further optimize the above technical solution, the bracket 103 is connected to the top of the door and window by bolts, and the wheel frame 102 is connected to the top of the door frame by bolts.

[0039] In order to further optimize the above technical solution, a slide rail is provided on the door frame, and the pulley 106 of the wheel frame 102 is arranged in the slide rail.

[0040] In order to further optimize the above technical solution, the positioning member is a limit block 311. When the door or window is closed, the main swing arm 104 and the auxiliary swing arm 105 are limited by the positioning member.

[0041] In order to further optimize the above technical solution, when the doors and windows are closed, they are locked by means of the spring tongue member 107 .

[0042] In order to further optimize the above technical solution, the tongue-spring member 107 is a prior art known in the art and will not be described in detail herein.

[0043] In order to further optimize the above technical solution, the lower carriages 30 are connected together by a connecting rod 50 , and the angle code 301 is fixed to the lower carriage 30 through a rotating shaft 302 , and an assembly 303 is provided on the rotating shaft 302 .

[0044] In order to further optimize the above technical solution, a spring groove and a sliding groove 315 are provided inside the lower slide 30 and on both sides of the swing arm 304 groove.

[0045] In order to further optimize the above technical solution, the self-locking spring tongue 308 includes a spring and a clamping column. The spring is located in the spring groove, one end of which is connected to the clamping column, and the other end is fixed on the lower slide 30.

[0046] In order to further optimize the above technical solution, the connecting piece 313 is used to connect the doors and windows, and the limiting plate 314 is used to be installed on the door frame and the window frame.

[0047] In order to further optimize the above technical solution, the angle code piece 301 is provided with a fixing groove and a plurality of positioning holes; the assembly 303 is composed of a flat piece and a fixing cylinder, the flat piece is provided with a plurality of positioning holes, the fixing cylinder is welded to the bottom of the flat piece, the fixing cylinder is embedded in the fixing groove, and a rotating shaft 302 is provided above and below the fixing cylinder, the rotating shaft 302 is fixed to the bottom of the fixing groove through a bearing and a fixing cylinder, and its bottom is fixed to the bottom of the fixing groove through a retaining spring, and the angle code piece 301 is fixed to the lower slide 30 at the same time.

[0048] In order to further optimize the above technical solution, the left and right parts of the wheel frame 102 and the bracket 103 have the same structure.

[0049] In order to further optimize the above technical solution, a lock box 201 is provided on the handle 20, and the upper pulley 10 and the lower pulley 30 drive the lock box 201 by rotating the handle 20. The lock box 201 is connected to the transmission rod 40, and the transmission rod 40 is connected to the steering angle 101. The steering angle 101 transmits the positioning column 112 on the upper pulley 10 to achieve synchronization and the switch moves sideways.

[0050] In order to further optimize the above technical solution, the swing arm 304 of the lower slide 30 can be opened by 0-90 degrees. A self-locking spring tongue 308 is provided at one end of the swing arm 304. When the swing arm 304 is opened, the pulley moves the card column so that its end leaves the chuck 305. The swing arm 304 spring will cause the card column to pop open and push toward the concave point 306 of the swing arm 304. The card column and the concave point 306 are positioned, and the swing arm 304 cannot swing left and right. When closing the swing arm 304, the pulley part needs to be moved backward, and the chuck 305 collides with the rear end of the card column. The chuck 305 drives the self-locking spring tongue 308 to push in the opposite direction, and the card column of the self-locking spring tongue 308 leaves the concave point 306 of the swing arm 304, and the swing arm 304 can be closed by 0-90 degrees.

[0051] In order to further optimize the above technical solution, a movable limit piece 309 is provided at the other end of the swing arm 304, and the movable limit piece 309 is connected to the positioning hook 312. The opening and closing of the swing arm 304 are achieved by rotating the swing arm 304 so that its protrusion 307 pushes the movable block 310 of the movable limit piece 309. The left and right movement of the movable limit piece 309 drives the movable block 310 and the positioning hook 312. In the closed state, the positioning hook 312 hooks the limit block 311, and when the swing arm 304 is opened, the positioning hook 312 is lifted up and leaves the limit block 311.

[0052] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0053] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Self-locking, translational, inward-tilting door and window components, characterized by , including: an upper pulley, a handle and a lower pulley; the upper pulley is composed of a left upper pulley and a right upper pulley; the lower pulley is composed of a left lower pulley and a right lower pulley; the left upper pulley and the right upper pulley, the handle and the left lower pulley and the right lower pulley are fixedly connected by a transmission rod; steering angles are provided on both sides of the upper pulley; an angle code piece is provided on the lower pulley, and the right side of the lower pulley is connected to the steering angle of the upper pulley through the angle code piece; the left side of the lower pulley is connected to the lower end of the handle through the angle code piece; the upper end of the handle is connected to the steering angle of the upper pulley; wherein, the upper The pulley is mainly composed of a wheel frame, a bracket, a main swing rod and an auxiliary swing rod; the wheel frame and the bracket are divided into left and right parts, and the left and right parts of the wheel frame are connected by a connecting rod; the wheel frame is provided with a positioning piece, a pulley and a tongue piece, one end of the main swing rod is fixed to the wheel frame by a fixing piece, and the other end is connected to one end of the auxiliary swing rod by a rotating shaft, a limiting groove is provided on the top of the auxiliary swing rod, and a limiting rod is provided in the limiting groove, one end of the limiting rod is arranged in the limiting groove, and the other end is fixed to the main swing rod by a rotating shaft; the bracket is provided with a base and a positioning column, and the other end of the auxiliary swing rod is connected to The base, the bottom of the auxiliary rocking rod is provided with a positioning groove, and the positioning column corresponds to the position of the positioning groove; wherein, the main rocking rod is fixed to the wheel frame by a hook nail, a spring tongue is provided on one side of the main rocking rod, and a fixing piece is provided on the other side, and two grooves are provided on the main rocking rod, and the spring tongue is connected to the latch tongue, when the main rocking rod is unfolded, the latch tongue is engaged with the groove on one side, and when the main rocking rod is closed, it is engaged with the groove on the other side; when the auxiliary rocking rod is closed, the bottom positioning groove of the auxiliary rocking rod is engaged with the positioning column on the bracket, and at the same time, the limit rod slides in the limit groove, so that the main rocking rod and the auxiliary rocking rod are folded together; the sliding A connector is provided at one end of the vehicle, and a limit plate is connected to the other end, and a swing arm slot is provided at the center, and a pulley is provided at the bottom; a swing arm is built in the swing arm slot, a chuck is provided at one end of the swing arm, and is fixed in the swing arm slot through a pin shaft, and a positioning hole is provided on the other end, and a concave point and a convex block are provided on the chuck, and self-locking spring tongues and movable limit members are respectively provided on both sides of the chuck, and the movable limit member includes a movable block, a pull rod and a slider; the pull rod is provided in the sliding slot, a slider is fixed at one end of the pull rod, and the other end is connected to the movable block; a hook is provided at the end of the movable block, and the movable block is connected to the positioning hook.

2. The self-locking, translational, inward-tilting door and window component according to claim 1 is characterized in that The auxiliary rocker arm and the main rocker arm are connected together through a rotating shaft, and there is a gap between the auxiliary rocker arm and the main rocker arm.

3. The self-locking translational inward tilting door and window component according to claim 1 is characterized in that One end of the limit rod is provided with a sliding piece, and the other end is fixedly connected to the main rocker arm through a rotating shaft, and the sliding piece is located in the limit groove.

4. The self-locking translational inward tilting door and window component according to claim 1 is characterized in that The lower slides are connected together by a connecting rod, and the angle code piece is fixed on the lower slide through a rotating shaft, and a combination piece is provided on the rotating shaft.

5. The self-locking, translational, inward-tilting door and window component according to claim 4 is characterized in that A spring groove and a sliding groove are provided inside the lower slide and on both sides of the swing arm groove; the self-locking spring tongue includes a spring and a clamping column, the spring is located in the spring groove, one end of which is connected to the clamping column, and the other end is fixed on the lower slide.

6. The self-locking, translational, inward-tilting door and window component according to claim 5 is characterized in that The angle code piece is provided with a fixing groove and a plurality of positioning holes; the assembly is composed of a flat plate and a fixing tube, the flat plate is provided with a plurality of positioning holes, the fixing tube is welded to the bottom of the flat plate, the fixing tube is embedded in the fixing groove, and a rotating shaft is provided up and down inside the fixing tube, the rotating shaft is fixed to the bottom of the fixing groove through a bearing and a fixing tube, and the bottom of the rotating shaft is fixed to the bottom of the fixing groove through a retaining spring, and the angle code piece is fixed to the lower slide at the same time.

7. The self-locking, translational, inward-tilting door and window component according to claim 1 is characterized in that , the left and right parts of the wheel frame and the bracket have the same structure.

8. The self-locking, translational, inward-tilting door and window component according to claim 1 is characterized in that A lock box is provided on the handle, and the upper pulley and the lower pulley drive the lock box by rotating the handle. The lock box is connected to the transmission rod, and the transmission rod is connected to the steering angle. The steering angle drives the positioning column on the upper pulley to achieve synchronization and side shift of the switch.

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