Novel transmission box and door and window thereof

Abstract

The utility model discloses a novel transmission box and a door and window thereof, the transmission box comprises a panel, a transmission strip, a shell and a transmission assembly, a sliding groove is arranged in the panel, and the transmission strip is arranged in the sliding groove in a sliding mode; the shell is connected with the panel, and a mounting cavity is formed in the shell; the transmission assembly comprises a gear and a rack which are meshed with each other, and the gear is rotationally arranged in the mounting cavity; and the rack is clamped on the transmission strip and slides along with the transmission strip. The gear and the rack are stamping parts which are integrally formed. Therefore, due to the fact that the transmission strip and the rack are arranged in a split mode, the thickness of the rack can be thinned, meanwhile, the thickness of the gear meshed with the rack can also be thinned, and raw materials are saved. In addition, the thickness of the rack and the gear is small, so that the rack and the gear can be integrally punched and formed by adopting a punching process, and the cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of door and window accessories technology, specifically to a novel transmission box and its door / window. Background Technology

[0002] This section provides only background information related to this application to enable those skilled in the art to understand this application more thoroughly and accurately, and it is not necessarily prior art.

[0003] In door and window lock systems, the transmission box plays a crucial role. The drive mechanism, through the transmission box, moves the associated locking points up and down to engage with the lock seat, thus completing the locking and opening of doors and windows. For example, Figure 1 As shown, the transmission box includes a box body and a panel. A transmission bar is slidably mounted inside the panel, and a rack is integrally formed on the transmission bar. A gear that meshes with the rack is located inside the box body. Thus, when the handle square shaft is inserted into the gear and drives the gear to rotate, the transmission bar can be driven to slide through its meshing with the rack, thereby causing the locking point to move.

[0004] Therefore, when the above-mentioned transmission box is used, since the rack on the transmission bar is integrally formed with the transmission bar, and the width of the transmission bar is relatively large, the thickness of the rack formed on the transmission bar is also relatively large, which in turn leads to the thickness of the gear meshing with the rack being relatively large. This not only increases the use of raw materials, but also requires the use of casting process, which greatly increases the cost. Utility Model Content

[0005] To overcome the defects of the prior art, this utility model provides a novel transmission box and its door / window. By separating the transmission bar and rack inside the transmission box, the thickness of the rack can be made thinner, and at the same time, the thickness of the gear meshing with the rack can also be made thinner, thereby saving raw materials. In addition, since the thickness of both the rack and the gear is relatively thin, they can be integrally stamped using a stamping process, thereby greatly reducing costs.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] A novel transmission box, comprising:

[0008] The panel has a sliding groove inside;

[0009] A drive bar, which slides within the groove;

[0010] A housing connected to the panel; a mounting cavity is formed inside the housing;

[0011] A transmission assembly includes a gear and a rack that mesh with each other, the gear being rotatably disposed within the mounting cavity; the rack being engaged with the transmission bar and sliding with the transmission bar;

[0012] The gear and the rack are both integrally formed stamping parts.

[0013] Further, the transmission bar is provided with a mounting clamping hole, and the rack is detachably clamped on the mounting clamping hole.

[0014] Further, the rack comprises a rod body part and a tooth-shaped part arranged on the rod body part, wherein:

[0015] The two ends of the rod body part are respectively protruded from the tooth-shaped part along the length direction to form two steps, the tooth-shaped part is clamped into the mounting clamping hole and abuts against the transmission bar through the steps to achieve limiting.

[0016] Further, when the rack is clamped on the transmission bar and the transmission bar is slidably arranged in the sliding groove of the panel, one side of the step away from the transmission bar abuts against the inner wall of the sliding groove to achieve limiting.

[0017] Further, the shell comprises a lower shell connected with the panel and a cover plate arranged on the lower shell and covering the gear, and the lower shell and the cover plate jointly limit the gear to rotate only in the circumferential direction.

[0018] Further, the limiting structure comprises a limiting hole and a limiting protrusion clamped into the limiting hole and capable of rotating only in the circumferential direction, one of the limiting hole and the limiting protrusion is arranged on the lower shell and / or the cover plate, and the other is arranged on the gear.

[0019] Further, the shell further comprises an upper shell and a middle shell arranged between the upper shell and the lower shell, and the installation cavity is formed between the upper shell and the lower shell or between the middle shell and the lower shell.

[0020] Further, the middle shell is a plastic shell integrally injection molded, and the lower shell and the upper shell are metal shells integrally stamped.

[0021] Further, the transmission bar is an integrally formed stamping part.

[0022] In addition, the utility model also provides a door and window, including above-mentioned novel transmission box.

[0023] In conclusion, the novel transmission box and the door and window thereof have the following beneficial effects:

[0024] (1) By the transmission bar and rack body set, so can make the thickness of the rack thin, and the gear thickness can also be thin, thereby saving raw materials; in addition, because the thickness of the rack and gear are thin, so can be stamped into one piece, thereby greatly reducing the cost.

[0025] (2) By the rack bar body two ends are respectively formed two steps, the rear side of the step can be with the transmission bar abutment, the front side of the step can be with the panel chute inner wall abutment, so as to ensure that the gear and rack in the process of engaging, the rack can only follow the transmission bar together in the chute left and right movement and will not move forward and backward, thereby improving the reliability of the transmission.

[0026] (3) By the lower shell is provided for cover on the gear cover plate, under the joint action of the lower shell and cover plate, can ensure that the gear and rack in the process of engaging, the gear can only rotate circumferentially and will not move forward and backward or up and down, thereby improving the reliability of the transmission.

[0027] (4) Because the transmission bar and rack body set, so the thickness of the transmission bar can also be thin, so the transmission bar can also be formed by stamping process, thereby reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the structure diagram of prior art transmission box;

[0029] Figure 2 is the structure diagram of the utility model transmission box;

[0030] Figure 3 is the utility model transmission box explosion schematic diagram;

[0031] Figure 4 is the utility model transmission box middle shell explosion schematic diagram;

[0032] Figure 5 is the utility model transmission box hidden after the structure schematic diagram of upper shell and middle shell;

[0033] Figure 6 is the utility model transmission box cross section schematic diagram.

[0034] Among them, the meaning of the reference signs is as follows:

[0035] 1, panel; 11, chute; 2, transmission bar; 21, mounting clamping hole; 3, shell; 31, lower shell; 311, first limiting protrusion; 32, cover plate; 321, second limiting clamping hole; 33, middle shell; 34, upper shell; 35, rivet; 4, gear; 41, transmission hole; 42, second limiting protrusion; 5, rack; 51, toothed portion; 52, rod body; 53, step; 6, locking screw. DETAILED DESCRIPTION

[0036] In order to better understand and implement, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0037] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0038] Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments and are not intended to limit the utility model.

[0039] First of all, it needs to be explained that the front-rear direction, left-right direction and up-down direction referred to in the embodiment are the directions marked in Figure 5 and Figure 6 .

[0040] Referring to Figures 2-6 , the utility model provides a novel transmission box, including panel 1, transmission strip 2, shell 3 and transmission assembly, the inside of panel 1 is provided with sliding slot 11 along its length direction, and the transmission strip 2 is slid in sliding slot 11;The shell 3 is connected on panel 1, and the installation cavity is formed in the inside of shell 3;The transmission assembly includes gear 4 and rack 5 that are mutually engaged transmission, gear 4 is rotatably arranged in installation cavity, and rack 5 is clamped on transmission strip 2 and slides with transmission strip 2. Wherein, gear 4 is provided with transmission hole 41 matched with handle square shaft.

[0041] Therefore, when rotating the handle to drive gear 4 to rotate, rack 5 and transmission strip 2 can be driven to move left and right in the sliding slot 11 of panel 1, and then drive the associated lock point to move up and down and cooperate with the lock seat, so as to complete the locking and opening of the door and window.

[0042] Wherein, the gear 4, the rack 5 and the transmission strip 2 are all integrally formed stamping parts.

[0043] Therefore, the thickness of the gear 4 engaged with the rack 5 can be thin, thereby saving raw materials.

[0044] Referring to Figure 3 , Figure 5 and Figure 6 , the transmission bar 2 is provided with a mounting clamping hole 21, and the rack 5 is detachably clamped on the mounting clamping hole 21. Specifically, the rack 5 includes a rod body part 52 and a toothed part 51 provided on the rod body part 52, and the two ends of the rod body part 52 protrude from the toothed part 51 along the length direction to form two steps 53. Therefore, when the rack 5 is clamped into the mounting clamping hole 21 through the toothed part 51, the steps 53 at the two ends of the rod body part 52 abut against the transmission bar 2 to achieve limiting.

[0045] Further, when the rack 5 is clamped on the transmission bar 2 and the transmission bar 2 is slidably arranged in the sliding groove 11 of the panel 1, the side surface of the step 53 away from the transmission bar 2 abuts against the inner wall of the sliding groove 11 to achieve limiting. That is, the front side wall of the step 53 abuts against the inner wall of the sliding groove 11, and the rear side wall of the step 53 abuts against the transmission bar 2, thereby limiting the movement of the rack 5 in the front-rear direction. Since the toothed part 51 of the rack 5 is clamped into the mounting clamping hole 21, the movement of the rack 5 in the up-down direction is limited, so that the rack 5 can only move in the left-right direction.

[0046] Therefore, by forming two steps 53 at the two ends of the rod body part 52 of the rack 5, the rear side of the step 53 abuts against the transmission bar 2, and the front side of the step 53 abuts against the sliding groove 11 of the panel 1, thereby ensuring that the rack 5 can only move left and right in the sliding groove 11 together with the transmission bar 2 during the engagement of the gear 4 and the rack 5, and cannot move forward and backward, thereby improving the reliability of the transmission.

[0047] Referring to Figures 4-6 , the housing 3 includes a lower housing 31 connected with the panel 1, and the gear 4 is rotatably arranged on the lower housing 31. Specifically, a first limiting structure is arranged between the lower housing 31 and the gear 4, and the first limiting structure is a first limiting protrusion 311 arranged on the upper end face of the lower housing 31 and in a circular ring shape, and a first limiting clamping hole (not shown in the figure) arranged on the bottom of the gear 4 and clamped and matched with the first limiting protrusion 311. When the first limiting protrusion 311 is clamped and matched with the first limiting clamping hole, the gear 4 can only rotate in the circumferential direction.

[0048] In the embodiment, the panel 1 is connected and fixed with the lower shell 31 through the locking screw 6.

[0049] Of course, it should be noted that in other embodiments, the first limiting protrusion and the first limiting clamping hole can also be interchanged in the setting position, which can also achieve the same technical effect of limiting the gear 4 to rotate only in the circumferential direction.

[0050] Further, the lower shell 31 is further provided with a cover plate 32 covering the gear 4 to limit the up-down movement of the gear 4, and in order to further improve the limitation of the gear 4, the cover plate 32 and the gear 4 are further provided with a second limiting structure, the second limiting structure comprises a second limiting protrusion 42 arranged on the upper end surface of the gear 4 and in the shape of a truncated cone, and a second limiting clamping hole 321 arranged on the cover plate 32 and clamped with the second limiting protrusion 42, when the second limiting protrusion 42 is clamped with the second limiting clamping hole 321, the gear 4 can only rotate in the circumferential direction.

[0051] In the embodiment, the cover plate 32 is connected and fixed on the lower shell 31 through the rivet 35.

[0052] Of course, it should be noted that in other embodiments, the second limiting protrusion and the second limiting clamping hole can also be interchanged in the setting position, which can also achieve the same technical effect of limiting the gear 4 to rotate only in the circumferential direction.

[0053] Therefore, by arranging the cover plate 32 covering the gear 4 on the lower shell 31, under the joint action of the lower shell 31 and the cover plate 32, it can be ensured that the gear 4 can only rotate in the circumferential direction and cannot move forward and backward or up and down during the meshing process of the gear 4 and the rack 5, thereby improving the reliability of the transmission.

[0054] Again referring to Figure 4 The shell 3 further comprises an upper shell 34 and a middle shell 33 arranged between the upper shell 34 and the lower shell, the upper shell 34 and the lower shell 31 are connected and fixed through the rivet 35 and press tightly fix the middle shell 33. Wherein, the middle shell 33 and the lower shell 31 form an installation cavity for accommodating the gear 4.

[0055] In the embodiment, the middle shell 33 is a plastic shell integrally injection molded, and the lower shell 31 and the upper shell 34 are metal shells integrally stamped.

[0056] In addition, the utility model further provides a door and window, including above-mentioned novel transmission box.

[0057] In summary, the novel transmission box and the door and window thereof have the following beneficial effects:

[0058] (One) the novel transmission box of the utility model, through the split setting of transmission strip 2 and rack 5, so the thickness of rack 5 can be thin, and the thickness of gear 4 engaged with the rack 5 can also be thin, thereby saving raw materials, in addition, since the thickness of rack 5 and gear 4 is thin, so the stamping process can be used to stamp integrally, thereby greatly reducing the cost.

[0059] (Two) the novel transmission box of the utility model, by forming two steps 53 at the both ends of rack 5 rod body part 52, the rear side of the step 53 can abut against transmission strip 2, and the front side of the step 53 can abut against the inner wall of the sliding groove 11 of the panel 1, so as to ensure that the rack 5 can only move left and right in the sliding groove 11 together with the transmission strip 2 during the engagement of the gear 4 and the rack 5, thereby improving the reliability of transmission.

[0060] (Three) the novel transmission box of the utility model, by setting the cover plate 32 for covering the gear 4 on the lower shell 31, under the joint action of the lower shell 31 and the cover plate 32, it can be ensured that the gear 4 can only rotate in the circumferential direction and cannot move forward and backward or up and down during the engagement of the gear 4 and the rack 5, thereby improving the reliability of transmission.

[0061] (Four) the novel transmission box of the utility model, since the transmission strip 2 and the rack 5 are split, the thickness of the transmission strip 2 can also be thin, so the transmission strip 2 can also be integrally formed by stamping process, thereby reducing the cost.

[0062] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0063] It should be understood that the terms "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0064] In addition, in the description of the utility model, the meaning of "a plurality of" and "several" is two or more than two, unless otherwise explicitly and specifically limited.

[0065] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A new transmission cassette characterized in that, The utility model relates to a novel transmission box, comprising: a panel with a sliding groove inside; a transmission bar sliding in the sliding groove; a shell connected to the panel, with an installation cavity inside; a transmission assembly comprising a gear and a rack meshing with each other, the gear rotatingly arranged in the installation cavity, and the rack clamped on the transmission bar and sliding with the transmission bar; wherein the gear and the rack are integrally formed stamping parts.

2. The novel transmission cassette according to claim 1, characterized in that, The transmission bar is provided with an installation clamping hole, and the rack is detachably clamped on the installation clamping hole.

3. The novel transmission cassette of claim 2, wherein, The rack comprises a rod body and a toothed portion arranged on the rod body, wherein: the two ends of the rod body protrude from the toothed portion along the length direction to form two steps, the toothed portion is clamped into the installation clamping hole and abuts against the transmission bar through the steps to achieve limiting.

4. The novel transmission cassette of claim 3, wherein, When the rack is clamped on the transmission bar and the transmission bar slides in the sliding groove of the panel, the side of the step away from the transmission bar abuts against the inner wall of the sliding groove to achieve limiting.

5. The novel transmission cassette according to any one of claims 1-4, characterized in that, The shell comprises a lower shell connected to the panel and a cover plate arranged on the lower shell and covering the gear, which are jointly used to limit the gear to rotate only in the circumferential direction.

6. The novel transmission cassette of claim 5, wherein, The limiting structure comprises a limiting hole and a limiting protrusion clamped into the limiting hole and capable of rotating only in the circumferential direction, one of the limiting hole and the limiting protrusion is arranged on the lower shell and / or the cover plate, and the other is arranged on the gear.

7. The novel transmission cassette of claim 5, wherein, The shell further comprises an upper shell and a middle shell arranged between the upper shell and the lower shell, the installation cavity is formed between the upper shell and the lower shell or between the middle shell and the lower shell.

8. The novel transmission cassette of claim 7, wherein, The middle shell is a plastic shell integrally injection molded, and the lower shell and the upper shell are metal shells integrally stamped.

9. The novel transmission cassette as claimed in claim 1, wherein, The transmission bar is an integrally formed stamping part.

10. A door or window, characterised in that The utility model relates to a novel transmission box, comprising: any one of claims 1-9.

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