CN220909372U - Reverse transmission box and door and window - Google Patents

Abstract

The utility model provides a reverse transmission box and a door and window, wherein the reverse transmission box comprises a transmission box body and a locking strip, and the locking strip is in sliding connection with the transmission box body; a steering gear and a driving gear are arranged in the transmission box body; a transmission toothed plate is also arranged in the transmission box body in a sliding manner, one side of the transmission toothed plate is provided with a driving rack, the other side of the transmission toothed plate is provided with a follow-up rack, the driving rack is meshed with a driving gear, and the follow-up rack is meshed with a steering gear; the lock bar is provided with a driven toothed plate at the other side of the steering gear, and the driven toothed plate is meshed with the steering gear. When the reverse transmission box is used for the outward-opening top-hung window, the handle can be allowed to correspond to the locking state of the door and window when facing downwards, corresponds to the outward-opening state of the door and window when facing upwards, and corresponds to the outward-hanging opening state of the door and window when facing upwards, so that a user can operate the handle to open the door and window anticlockwise and operate the handle to lock the door and window clockwise, and the operation experience of the user is improved.

Description

Reverse transmission box and door and window

Technical Field

The utility model relates to the technical field of door and window hardware, in particular to a reverse transmission box and a door and window.

Background

The development of door and window systems in the building industry is mature, and the structure of the door and window is continuously adjusted to meet different use requirements of users, such as a commonly adopted flat-open type door and window system, a sliding type door and window system and the like.

The handles in the out-swinging top-hung window hardware systems commonly used in the current market are typically: when the door and window is 90 degrees upwards, the door and window is in a locking state, after the handle is rotated 90 degrees clockwise, the door and window is changed into a flat-open state, after the handle is rotated 90 degrees clockwise continuously, the door and window is changed into an outer hanging open state, at the moment, if a user needs to close the door and window, the handle is required to be rotated 180 degrees anticlockwise, the handle operation mode is inconsistent with life operation habits of most users, and especially when the handle is required to be rotated by overcoming friction force comprising a lock point and a lock seat, smooth force is not facilitated for the user, and the use experience of the user is affected to a certain extent.

Disclosure of utility model

Therefore, the utility model aims to provide a reverse transmission box and a door and window, which can allow a handle to be installed downwards when an outward-opening upper-hung window is in a locking state, and allow the handle to be in an upward state when the door and window is in an outward-opening upper-hung state, so that a user can operate the handle to open the door and window anticlockwise and operate the handle to lock the door and window clockwise, thereby improving the operation experience of the user, and solving the problems that the operation mode of the handle of the conventional outward-opening upper-hung window is inconsistent with the living operation habits of most users and influences the use experience of the user.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a reverse transmission box, which comprises a transmission box body and a locking strip, wherein the end part of the locking strip is provided with a locking point, and the locking strip is in sliding connection with the transmission box body;

The driving box comprises a driving box body, a driving gear and a steering gear, wherein a fixing column and the driving gear are arranged in the driving box body, the steering gear is sleeved on the fixing column, the axial direction of the steering gear is perpendicular to the axial direction of the driving gear, and the driving gear is provided with a shaft hole for inserting a handle driving shaft;

a transmission toothed plate is also arranged in the transmission box body in a sliding manner, one side of the transmission toothed plate is provided with a driving rack, the other side of the transmission toothed plate is provided with a follow-up rack parallel to the driving rack, the driving rack is meshed with the driving gear, and the follow-up rack is meshed with the steering gear;

The lock bar is provided with a driven toothed plate facing the follow-up rack on the other side of the steering gear, and the driven toothed plate is meshed with the steering gear.

Preferably, the transmission box body is provided with a strip-shaped boss along the moving direction of the driven toothed plate, the boss and the locking strip are respectively positioned at two sides of the driven toothed plate, and one side of the boss facing the driven toothed plate is attached to the driven toothed plate.

Preferably, both sides of the driving rack are respectively connected with the transmission box body in a sliding manner through concave-convex grooves in a matching manner.

Further preferably, the transmission box body comprises a transmission shell and a transmission box body, the driving gear and the transmission toothed plate are arranged in the transmission box body, the transmission box body is embedded in the transmission shell, and the steering gear is slidably arranged on the transmission shell along the embedded direction of the transmission box body;

The transmission housing is internally provided with an adjusting component, and the transmission housing can slide back and forth along the embedded direction in the transmission housing through the adjusting component.

Still further preferably, the adjustment assembly includes an adjustment screw and an adjustment block;

The upper side and the lower side of the transmission box body are respectively provided with a convex part, the regulating blocks are fixedly arranged in the convex parts, grooves which are in one-to-one correspondence with the convex parts are arranged in the transmission shell, and the convex parts are embedded into the corresponding grooves and can slide along with the transmission box body in the grooves;

the transmission shell is provided with the adjusting screws corresponding to the adjusting blocks one by one, the adjusting screws penetrate through the corresponding adjusting blocks along the embedded direction of the transmission shell and are in threaded connection with the adjusting blocks, and the adjusting screws are axially clamped and fixed in the transmission shell and can rotate.

Still further preferably, the adjusting screw penetrates the protruding portion from one side of the groove, and the other end abuts against a side wall of the other side of the groove.

Still further preferably, the adjusting assembly further comprises a positioning insert block, and a first through hole is formed in the bottom of the groove and used for allowing the positioning insert block to be inserted into the groove.

More preferably, the transmission shell is provided with a slideway through hole, and scales are arranged on the side edge of the slideway through hole;

the transmission case body is provided with a scale indicating block extending into the slideway through hole, and the scale indicating block can slide in the slideway through hole.

Still further preferably, the reverse driving box further comprises a back plate, the back plate comprises a panel and two guide pipes perpendicular to the panel, two opposite convex strips extending along the axial direction of the guide pipes are arranged on the peripheral surface of the guide pipes, the panel is provided with a second through hole for the driving shaft of the handle to pass through, the guide pipes are symmetrically positioned at two sides of the second through hole, and the planes of the two convex strips are perpendicular to the planes of the two guide pipes;

The guide pipe penetrates through the transmission box body, the panel is embedded on the surface of the transmission box body, and the second through hole is coaxial with the driving gear.

Preferably, at least one fastening component is respectively arranged at two ends of the transmission box body, and the fastening component is used for fixing the transmission box body in the cavity of the window sash section bar;

The fastening assembly comprises a first screw and a first gasket in threaded connection with the first screw, the first gasket is provided with a notch, the transmission box body is provided with a clamping block corresponding to the notch, and the clamping block can prevent the first gasket from rotating simultaneously along with the first screw when clamped at the notch; a washer is disposed between the screw head of the first screw and the first washer.

Another object of the present utility model is to provide a door and window, including a door and window frame, a door and window sash, a handle, and a reverse driving box as described above, wherein the door and window sash is installed in the door and window frame, the reverse driving box is installed on the door and window sash, and the handle is inserted into a driving gear of the reverse driving box;

when the handle faces downwards, the door and window is in a locking state; when the handle is transverse, the door and window is in a flat-open state; when the handle is upward, the door and window is in an outward suspension opening state.

Compared with the prior art, the reverse transmission box has the following main beneficial effects:

The driving gear is meshed with the driving rack, the steering gear is meshed with the follow-up rack, and the driven rack facing the follow-up rack is meshed with the other side of the steering gear, so that when the driving gear rotates, the driving gear is driven to linearly move, the steering gear can be driven to rotate through the movement of the follow-up rack, the steering gear can be driven to move in the opposite direction of the movement direction of the driving gear through the movement of the follow-up rack, and finally the locking strip and the driven rack are driven to slide in the same direction;

Therefore, when the reverse transmission box is used in the outward-opening top-hung window, the reverse transmission box can allow the handle to face downwards to correspond to the locking state of the door and window, and the handle to face horizontally to correspond to the outward-hanging opening state of the door and window, so that a user can operate the handle to open the door and window anticlockwise and operate the handle to lock the door and window clockwise, the operation experience of the user is improved, and the problems that the operation mode of the conventional outward-opening top-hung window handle is inconsistent with the living operation habits of most users and the use experience of the user is influenced are solved;

The reverse transmission box has the advantages of fewer structural parts, simple connection mode of each structural part, easy processing and assembly and relatively low manufacturing cost.

Compared with the prior art, the door and window provided by the utility model has the advantages that the reverse transmission box is used, so that a user can operate the handle anticlockwise to open the door and window and operate the handle clockwise to lock the door and window, the operation mode is more in line with the living operation habit of the public, the palm of the user holds the handle and rotates the handle to save more labor, the operation process is smoother, and the use experience of the user is improved.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

FIG. 1 is a perspective view of a reverse driving box (the center distance of handles is 25 mm) provided by an embodiment of the utility model;

FIG. 2 is an internal block diagram of FIG. 1;

Fig. 3 is a perspective view II (the center distance of the handle is 25 mm) of a reverse transmission box provided by the embodiment of the utility model;

Fig. 4 is a perspective view of a reverse driving box (the center distance of handles is 35 mm) provided by the embodiment of the utility model;

FIG. 5 is an internal block diagram of FIG. 4;

Fig. 6 is a perspective view II (the center distance of the handle is 35 mm) of a reverse transmission box provided by the embodiment of the utility model;

Fig. 7 is a transmission structure diagram of a reverse transmission box according to an embodiment of the present utility model;

Fig. 8 is a schematic diagram of a handle rotation angle of 0 ° when a door and window corresponding to a reverse driving box provided by an embodiment of the present utility model is in a locked state;

Fig. 9 is a schematic diagram of a handle rotation angle of 90 ° when a door and window corresponding to a reverse transmission box provided by an embodiment of the present utility model is in a flat-open state;

Fig. 10 is a schematic diagram of a handle rotation angle of 180 ° when a door and window corresponding to a reverse transmission box provided by an embodiment of the present utility model is in an outward flat-open and suspended state;

FIG. 11 is a schematic diagram of an exploded view of a reverse drive cassette according to an embodiment of the present utility model;

FIG. 12 is a schematic diagram of a second embodiment of a reverse driving case according to the present utility model;

FIG. 13 is a view showing an installation state of a fastening assembly according to an embodiment of the present utility model;

Fig. 14 is a schematic view of a reverse driving box according to an embodiment of the present utility model when the reverse driving box is installed in a window sash section bar;

Description of the drawings: the driving box comprises a driving box body 1, a driving shell 100, a first shell 101, a second shell 102, a driving box body 200, a first box body 201, a second box body 202, a locking strip 2, a steering gear 3, a driving gear 4, a shaft hole 5, a driving toothed plate 6, a driving toothed bar 7, a driven toothed bar 8, a driven toothed plate 9, a boss 10, a sliding groove 11, a boss 12, a fixed column 13, an adjusting screw 14, an adjusting block 15, a protrusion 16, a groove 17, a containing cavity 18, a shoulder 19, a positioning insert 20, a first through hole 21, a slideway through hole 22, a scale indicating block 23, a backboard 24, a panel 25, a guide tube 26, a second through hole 27, a convex strip 28, a first screw 29, a first gasket 30, a notch 31, a clamping block 32, a gasket 33, a window sash profile 34, a C-shaped groove 35, a handle 36, a handle driving shaft 37 and a cover plate 38.

Detailed Description

The technical solutions of the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art may better understand the present utility model and implement the same, but the illustrated embodiments are not limiting of the present utility model, and in this embodiment, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model, and do not indicate or imply that the referred devices or elements must have specific orientations, be configured and operated in specific orientations, and therefore should not be construed as limiting of the present utility model.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

The first embodiment provides a reverse transmission case, as shown in fig. 1 to 3, comprising a transmission case body 1 and a locking bar 2 with locking points arranged at the end part, wherein the locking bar 2 is in sliding connection with the transmission case body 1;

A steering gear 3 and a driving gear 4 are arranged in the transmission box body 1, the axial direction of the steering gear 3 is perpendicular to the axial direction of the driving gear 4, and the driving gear 4 is provided with a shaft hole 5 for inserting a handle driving shaft 37; it should be noted that, since the handle driving shaft 37 is usually a square shaft, the shaft hole 5 in the present embodiment is correspondingly configured as a square hole, and the driving gear 4 can be rotated by the rotation of the handle 36 after the handle driving shaft 37 is inserted into the shaft hole 5, and obviously, the specific connection mode that the handle driving shaft 37 is inserted into the driving gear 4 to rotate the driving gear 4 is not limited to one in the present embodiment, and other insertion connection modes that can realize the rotation of the driving gear 4 can also be adopted, which is not listed here;

A transmission toothed plate 6 is also arranged in the transmission box body 1 in a sliding manner, one side of the transmission toothed plate 6 is provided with a driving rack 7, the other side of the transmission toothed plate is provided with a follow-up rack 8 parallel to the driving rack 7, the driving rack 7 is meshed with the driving gear 4, and the follow-up rack 8 is meshed with the steering gear 3;

The lock bar 2 is provided with a driven toothed plate 9 facing the follow-up rack 8 on the other side of the steering gear 3, and the driven toothed plate 9 is meshed with the steering gear 3.

As shown in fig. 7, in this embodiment, by providing the driving toothed plate 6 and the driving gear 4 and the steering gear 3 with axes perpendicular to each other, and providing the driving rack 7 and the following rack 8 parallel to each other on both sides of the driving toothed plate 6, by meshing the driving gear 4 with the driving rack 7, meshing the steering gear 3 with the following rack 8, and meshing the following toothed plate 9 facing the following rack 8 with the other side of the steering gear 3, when the driving gear 4 rotates, the driving toothed plate 6 is driven to move linearly, and then the steering gear 3 can be driven to rotate by the movement of the following rack 8, and the steering gear 3 rotates to drive the following toothed plate 9 to move in the opposite direction of the movement direction of the driving toothed plate 6, so as to finally drive the locking bar 2 to slide in the same direction as the following toothed plate 9;

Therefore, when the reverse transmission box is applied to the out-swinging upper hung window, the handle 36 can be allowed to face downwards to correspond to the locking state of the door and window, the handle 36 transversely corresponds to the out-swinging state of the door and window, and the handle 36 faces upwards to correspond to the out-swinging upper hung state of the door and window, so that a user can operate the handle 36 anticlockwise to open the door and window and operate the handle 36 clockwise to lock the door and window, the operation experience of the user is improved, and the problem that the operation mode of the conventional out-swinging upper hung window handle 36 is inconsistent with the life operation habits of most users, and the use experience of the user is influenced is solved;

Considering the coordinated aesthetic requirement of placing the handle 36 and the window frame and industry practice, in this embodiment, as shown in fig. 8 to 10, when the inserted handle 36 is facing downwards (i.e. the rotation angle is 0 °), the door and window is in a locked state, when the handle 36 is horizontal and transversal (i.e. the rotation angle is 90 °), the door and window is in a flat-open state, and when the handle 36 is facing upwards (i.e. the rotation angle is 180 °), the door and window is in an outward flat-open and overhanging state. It should be noted that the diameter of the driving gear 4 and the length of the driving rack 7, and the diameter of the steering gear 3 and the lengths of the follow-up rack 8 and the driven toothed plate 9 should be matched with the unidirectional stroke of the locking bar 2, so as to ensure that the locking bar 2 can complete the sliding of the unidirectional complete stroke when the handle 36 rotates 180 °. In this embodiment, the travel of the lock bar 2 corresponding to 90 ° rotation of the handle 36 is set to 18mm.

In addition, the reverse transmission box of the embodiment has few structural parts, the connecting mode of each structural part is simple, the processing and the assembly are easy, and the manufacturing cost is relatively low.

In a preferred embodiment, as shown in fig. 2, to improve the stability of the driven toothed plate 9 during moving, the driving box body 1 is provided with strip-shaped bosses 10 along the moving direction of the driven toothed plate 9, the bosses 10 and the locking strips 2 are respectively located at two sides of the driven toothed plate 9, and one side of the bosses 10 facing the driven toothed plate 9 is attached to the driven toothed plate 9, so that the side of the driven toothed plate 9 is attached to the side of the bosses 10 to slide, so as to limit the sliding direction of the driven toothed plate 9, and the sliding is more stable.

In a preferred embodiment, as shown in fig. 2, 7 and 12, two sides of the driving rack 7 are respectively in sliding connection with the transmission box body 1 through concave-convex grooves, so that on one hand, the driving rack 6 can be stably fixed on the transmission box body 1, the stability of movement of the driving rack 7 and the follow-up rack 8 is ensured, the driving rack 7 and the follow-up rack 8 are stably meshed with the driving gear 4 and the steering gear 3, the driving rack 6 is prevented from being influenced by the contact with the driving gear 4 and the steering gear 3 at the same time, and on the other hand, the moving direction of the driving rack 6 can be limited, and the moving stability of the driving rack 6 is improved.

Currently, the door and window factory casement section bar 34 has more specification models, the cavity sizes of the section bars with different specifications are different, the distance from the surface of the casement section bar 34 c-shaped groove 35 to the inner bottom of the cavity is different, and in order to meet the aesthetic requirement of appearance, the handle 36 needs to be arranged on the surface of the casement section bar 34 in the middle, so that the handle center distance of the transmission box is matched with the specification of the casement section bar 34, and further, the transmission box has more specifications, and the problems of high mold opening, manufacturing and inventory costs are caused.

To this end, in a further preferred embodiment, as shown in fig. 1 to 6, the transmission case body 1 includes a transmission case body 100 and a transmission case body 200, the driving gear 4 and the transmission toothed plate 6 are disposed in the transmission case body 200, the transmission case body 200 is embedded in the transmission case body 100, and the steering gear 3 is slidably disposed on the transmission case body 100 in the embedded direction of the transmission case body 200; an adjusting component is arranged in the transmission shell 100, and the transmission box 200 can slide back and forth in the embedded direction in the transmission shell 100 through the adjusting component.

In the embodiment, the transmission case 200 is embedded in the transmission case 100, and an adjusting component is arranged in the transmission case 100, so that the transmission case 200 slides back and forth in the embedded direction in the transmission case 100 by adjusting the adjusting component, thereby changing the vertical distance between the overlapping surface of the transmission case and the surface of the window sash profile 34 c-shaped groove 35 and the axis of the driving gear 4, realizing the adjustment of the handle center distance of the transmission case, further reducing the specification types of the transmission case, reducing the mold opening, manufacturing and inventory costs, and solving the problems of more specifications and higher mold opening, manufacturing and inventory costs caused by the unadjustable handle center distance of the transmission case; the transmission box disclosed by the utility model can meet the installation requirements of various handle center distances, and is high in universality; and when the deviation exists in the center distance of the handles determined by the mounting process holes on the window sash section bar 34, the positions of the mounting process holes can be effectively adapted by adjusting the center distance of the handles of the transmission box, so that the mounting requirements are met, and the difficulty of the mounting process is reduced.

It should be noted that the size and the adjustment range of the handle center distance of the driving box in this embodiment may be divided according to the specification types of the window sash section bar 34, specifically, may be divided into 18 mm-25 mm, 25 mm-35 mm, 35 mm-45 mm, etc., and this embodiment uses 25 mm-35 mm as an example, where when the handle center distance of the driving box is 25mm, as shown in fig. 1 to 3, and when the handle center distance of the driving box is 35mm, as shown in fig. 4 to 6.

Specifically, as shown in fig. 2, 5 and 11, the transmission toothed plate 6 is provided with a chute 11 extending in the moving direction thereof, the transmission case 200 is provided with a protrusion 12 facing the chute 11, and the protrusion 12 is filled in the chute 11, so that the transmission toothed plate 6 can move along with the movement of the transmission case 200 while ensuring that the transmission toothed plate 6 can be driven by the driving gear 4 to move linearly; the transmission housing 100 is provided with a fixed column 13, the fixed column 13 is located between the driven toothed plate 9 and the transmission toothed plate 6, and the axial direction of the fixed column 13 is the same as the embedded direction of the transmission housing 200, and the steering gear 3 is sleeved on the fixed column 13, so that the steering gear 3 can move along with the movement of the transmission housing 200, and it should be noted that, as shown in fig. 7, the thickness of the transmission toothed plate 6 should be capable of ensuring that the steering gear 3 is partially embedded into the transmission toothed plate 6 while meshing with the steering gear 3, so that the steering gear 3 can be driven to move along with the fixed column 13 when the transmission toothed plate 6 moves along with the transmission housing 200.

In a further preferred embodiment, as shown in fig. 2 and 5, the adjustment assembly comprises an adjustment screw 14 and an adjustment block 15; the upper side and the lower side of the transmission case body 200 are provided with protruding parts 16, the inside of the protruding parts 16 is fixedly provided with adjusting blocks 15, the inside of the transmission case 100 is provided with grooves 17 corresponding to the protruding parts 16 one by one, and the protruding parts 16 are embedded into the corresponding grooves 17 and can slide along with the transmission case body 200 in the grooves 17;

The transmission shell 100 is provided with adjusting screws 14 corresponding to the adjusting blocks 15 one by one, the adjusting screws 14 penetrate through the corresponding adjusting blocks 15 along the embedded direction of the transmission shell 100 and are in threaded connection with the adjusting blocks 15, and the adjusting screws 14 are axially clamped and fixed in the transmission shell 100 and can rotate, namely, the adjusting screws 14 can rotate around the axis of the adjusting screws while being axially fixed. In a specific embodiment, as shown in fig. 11, the adjusting screw 14 is a cylindrical head screw, the transmission housing 100 is formed by splicing a first housing 101 and a second housing 102, and the first housing 101 and the second housing 102 are respectively provided with a receiving cavity 18 for embedding a half cylindrical head of the adjusting screw 14, so that after the adjusting screw 14 is installed by penetrating through the protruding portion 16, the first housing 101 and the second housing 102 are spliced, and then the cylindrical head of the adjusting screw 14 can be clamped and fixed by utilizing a shoulder 19 formed by the structure of the receiving cavity 18, thereby realizing axial fixation of the adjusting screw 14. In a specific operation, the adjusting screw 14 may be a socket head cap screw, and the movement of the transmission housing 100 may be easily achieved by inserting a hexagonal wrench into the socket head cap of the adjusting screw 14 to rotate clockwise or counterclockwise.

In this embodiment, since the adjusting screw 14 is axially fixed, the adjusting screw 14 drives the adjusting block 15 to axially move along the adjusting screw 14 when rotating, and the adjusting block 15 is fixed in the protruding portion 16 of the transmission case 200, so that the transmission case 200 is correspondingly driven to axially move along the adjusting screw 14. Preferably, the transmission case 200 is formed by splicing the first case 201 and the second case 202, and two ends of the adjusting block 15 are respectively embedded in the first case 201 and the second case 202, so that the quick installation and reliable fixing of the adjusting block 15 are facilitated, and a larger operation space can be provided for the installation of the transmission toothed plate 6 and the driving gear 4 in the transmission case 200, so that the installation is more convenient.

In a further preferred embodiment, the adjustment screw 14 extends through the projection 16 from one side of the recess 17 and the other end abuts against the side wall on the other side of the recess 17, so that over adjustment is prevented from causing the projection 16 to come out of the adjustment screw 14.

Since the center distance of the driving box handle is adjustable in the above embodiment and has a certain adjustment range, in a further preferred embodiment, as shown in fig. 1 to 6, the adjustment assembly further includes a positioning insert 20, and a first through hole 21 is disposed at the bottom of the groove 17, where the first through hole 21 is used for inserting the positioning insert 20 into the groove 17.

When adjusting transmission box handle centre-to-centre spacing, on the one hand can be earlier with the location inserted block from first through-hole 21 insert in recess 17, when bulge 16 supported the location inserted block, indicate the regulation and accomplish promptly, so can accurately inject the accommodation, be convenient for accurate regulation, on the other hand, after accomplishing the regulation, the location inserted block inserts in recess 17, also can play the effect of fixed transmission box handle centre-to-centre spacing, avoid in daily application adjusting component appears independently adjusting and make transmission box handle centre-to-centre spacing produce the fine setting. The positioning plug blocks can be arranged in a plurality, the thickness of the positioning plug blocks can be determined according to the change range of the center distance of the handle, and the positioning plug blocks can be increased in units of 1mm, 5mm and the like.

In a preferred embodiment, as shown in fig. 3 and 6, the transmission housing 100 is provided with a slide through hole 22, and scales are provided at the sides of the slide through hole 22; the transmission case body 200 is provided with the scale indication block 23 that stretches into the slide through hole 22, and scale indication block 23 slides in the slide through hole 22 in order to point to corresponding scale, and when the transmission case body 200 removes like this, through the cooperation of scale and scale indication block 23, can learn directly perceivedly and control the displacement distance, make the accommodation process controllable, the regulation result is more accurate.

In a further preferred embodiment, as shown in fig. 1 to 6, the reverse driving box further comprises a back plate 24, the back plate 24 comprises a front plate 25 and two guide pipes 26 perpendicular to the front plate 25, the front plate 25 is provided with a second through hole 27 for a handle driving shaft 37 to pass through, the two guide pipes 26 are symmetrically positioned at two sides of the second through hole 27, the outer peripheral surface of the guide pipe 26 is provided with two opposite raised strips 28 extending along the axial direction of the guide pipe, and the plane of the two raised strips 28 is perpendicular to the plane of the two guide pipes 26; the guide tube 26 penetrates through the transmission case 200, and the panel 25 is embedded on the surface of the transmission case 200, and the second through hole 27 is coaxial with the driving gear 4.

After the transmission box is installed and fixed in the cavity of the door and window profile, when the handle 36 is installed and the handle screw is fastened, the backboard 24 can slide in the transmission box 200 towards the handle 36 direction and be partially pulled out, and as the other part of guide tube 26 is still positioned in the transmission box 200, the phenomenon that the mechanical fit is not ideal due to the fact that the handle 36 screw directly pulls the transmission box 200 off-set is avoided, meanwhile, the convex strips 28 on the guide tube 26 can guide the guide tube 26 to slide axially on one hand, and can limit the shaking of the transmission box 200 in the radial direction of the guide tube 26 on the other hand. Furthermore, after the handle screw is fastened, the surface of the panel 25 is tightly attached to the inner wall of the door and window profile, which is equivalent to increasing the contact area between the handle base and the door and window profile, thereby improving the stability of fixing the handle 36.

In a preferred embodiment, the two ends of the transmission box body 1 are respectively provided with at least one fastening component for fixing the transmission box body 1 in the cavity of the window sash section bar 34;

As shown in fig. 12, the fastening assembly comprises a first screw 29 and a first gasket 30 in threaded connection with the first screw 29, the first gasket 30 is provided with a notch 31, the transmission box body 1 is provided with a clamping block 32 corresponding to the notch 31, and the clamping block 32 can prevent the first gasket 30 from rotating simultaneously along with the first screw 29 when clamped at the notch 31; a washer 33 is provided between the screw head of the first screw 29 and the first washer 30. Further, in order to shield the exposed first screw 29, a cover plate 38 is correspondingly arranged on the locking strip 2 and is used for covering and shielding the first screw 29, so that the overall visual aesthetic feeling of the appearance of the transmission box is improved.

As shown in fig. 13 to 14, during installation, a worker only needs to rotate the first screw 29, so that the clamping block 32 can be clamped at the notch 31, and the first screw 29 is continuously rotated in the same direction until the first gasket 30 is close to the screw head of the first screw 29 to tightly press the c-shaped groove 35 of the window sash profile 34, so that the installation is quick and reliable, and the first screw 29 does not need to be drilled on the window sash profile 34 to damage the profile. It should be noted that the minimum clear width of the first gasket 30 should be slightly smaller than the clear width between the c-shaped slots 35 of the sash profile 34 at the mounting location so as to enable the first gasket 30 to be placed into the c-shaped slots 35 of the sash profile 34 along with the drive box, while the maximum clear width of the first gasket 30 should be slightly larger than the clear width between the c-shaped slots 35 of the sash profile 34 at the mounting location so that both ends of the first gasket 30 can touch the c-shaped slots 35 of the sash profile 34 for fastening.

The second embodiment provides a door and window, comprising a door and window frame, a door and window sash, a handle 36 and a reverse transmission box, wherein the door and window sash is installed in the door and window frame, the reverse transmission box is installed on the door and window sash, and the handle 36 is inserted into a driving gear 4 of the reverse transmission box;

and when the handle 36 is downward, the door and window is in a locking state; when the handle 36 is in the transverse direction, the door and window is in a flat-open state; when the handle 36 is upward, the door and window is in an outward hanging open state.

Compared with the door and window in the prior art, the reverse transmission box is used, so that a user can operate the handle 36 anticlockwise to open the door and window and operate the handle 36 clockwise to lock the door and window, the operation mode is more in line with the living operation habit of the public, the user can hold the handle 36 by the palm and rotate the handle 36 more labor-saving, the operation process is smoother, and the use experience of the user is improved.

In this specification, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (11)

1. A reverse drive box, characterized in that: the transmission box comprises a transmission box body and a locking strip, wherein a locking point is arranged at the end part of the locking strip, and the locking strip is in sliding connection with the transmission box body;

The driving box comprises a driving box body, a driving gear and a steering gear, wherein a fixing column and the driving gear are arranged in the driving box body, the steering gear is sleeved on the fixing column, the axial direction of the steering gear is perpendicular to the axial direction of the driving gear, and the driving gear is provided with a shaft hole for inserting a handle driving shaft;

A transmission toothed plate is also arranged in the transmission box body in a sliding manner, one side of the transmission toothed plate is provided with a driving rack, the other side of the transmission toothed plate is provided with a follow-up rack parallel to the driving rack, the driving rack is in meshed connection with the driving gear, and the follow-up rack is in meshed connection with the steering gear;

The lock bar is provided with a driven toothed plate facing the follow-up rack on the other side of the steering gear, and the driven toothed plate is meshed with the steering gear.

2. A reverse gear box according to claim 1, wherein: the transmission box body is provided with a strip-shaped boss along the moving direction of the driven toothed plate, the boss and the locking strip are respectively positioned at two sides of the driven toothed plate, and one side of the boss, which faces the driven toothed plate, is attached to the driven toothed plate.

3. A reverse gear box according to claim 1, wherein: and two sides of the driving rack are respectively connected with the transmission box body in a matched sliding way through concave-convex grooves.

4. A reverse gear box according to any one of claims 1 to 3, wherein: the transmission box body comprises a transmission shell and a transmission box body, the driving gear and the transmission toothed plate are arranged in the transmission box body, the transmission box body is embedded in the transmission shell, and the steering gear is arranged on the transmission shell in a sliding manner along the embedded direction of the transmission box body;

The transmission housing is internally provided with an adjusting component, and the transmission housing can slide back and forth along the embedded direction in the transmission housing through the adjusting component.

5. A reverse gear box according to claim 4, wherein: the adjusting assembly comprises an adjusting screw and an adjusting block;

The upper side and the lower side of the transmission box body are respectively provided with a convex part, the regulating blocks are fixedly arranged in the convex parts, grooves which are in one-to-one correspondence with the convex parts are arranged in the transmission shell, and the convex parts are embedded into the corresponding grooves and can slide along with the transmission box body in the grooves;

the transmission shell is provided with the adjusting screws corresponding to the adjusting blocks one by one, the adjusting screws penetrate through the corresponding adjusting blocks along the embedded direction of the transmission shell and are in threaded connection with the adjusting blocks, and the adjusting screws are axially clamped and fixed in the transmission shell and can rotate.

6. A reverse gear box according to claim 5, wherein: the adjusting screw penetrates through the protruding portion from one side of the groove, and the other end of the adjusting screw abuts against the side wall of the other side of the groove.

7. A reverse gear box according to claim 6, wherein: the adjusting assembly further comprises a positioning insert block, a first through hole is formed in the bottom of the groove, and the first through hole is used for allowing the positioning insert block to be inserted into the groove.

8. A reverse gear box according to claim 4, wherein: the transmission shell is provided with a slideway through hole, and scales are arranged on the side edge of the slideway through hole;

the transmission case body is provided with a scale indicating block extending into the slideway through hole, and the scale indicating block can slide in the slideway through hole.

9. A reverse gear box according to claim 4, wherein: the reverse transmission box further comprises a back plate, the back plate comprises a panel and two guide pipes perpendicular to the panel, two opposite convex strips extending along the axial direction of the guide pipes are arranged on the peripheral surface of the guide pipes, the panel is provided with a second through hole for the driving shaft of the handle to pass through, the guide pipes are symmetrically positioned at two sides of the second through hole, and the planes of the two convex strips are perpendicular to the planes of the two guide pipes;

The guide pipe penetrates through the transmission box body, the panel is embedded on the surface of the transmission box body, and the second through hole is coaxial with the driving gear.

10. A reverse gear box according to claim 1, wherein: at least one fastening component is arranged at two ends of the transmission box body respectively and used for fixing the transmission box body in a cavity of the window sash section bar;

The fastening assembly comprises a first screw and a first gasket in threaded connection with the first screw, the first gasket is provided with a notch, the transmission box body is provided with a clamping block corresponding to the notch, and the clamping block can prevent the first gasket from rotating simultaneously along with the first screw when clamped at the notch; a washer is disposed between the screw head of the first screw and the first washer.

11. A door and window, characterized in that: a reverse drive box comprising a door and window frame, a door and window sash, a handle and any one of claims 1 to 10, the door and window sash being mounted in the door and window frame, the reverse drive box being mounted on the door and window sash, the handle being inserted into a drive gear of the reverse drive box;

when the handle faces downwards, the door and window is in a locking state; when the handle is transverse, the door and window is in a flat-open state; when the handle is upward, the door and window is in an outward suspension opening state.