CN220769316U

CN220769316U - Transmission box

Info

Publication number: CN220769316U
Application number: CN202322175358.5U
Authority: CN
Inventors: 宋士平
Original assignee: Shenzhen Hopo Window Control Technology Co Ltd
Current assignee: Shenzhen Hopo Window Control Technology Co Ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-04-12
Anticipated expiration: 2033-08-14

Abstract

The utility model belongs to the technical field of doors and windows, and discloses a transmission box which comprises a transmission assembly and a shell, wherein the transmission assembly comprises a gear and a rack which are meshed with each other, the shell comprises a first shell and a second shell, and a first groove cavity is formed in the middle of the first shell; the second shell is inserted into the first groove cavity in a limiting manner, the second shell is provided with a second groove cavity, and the gear is rotationally arranged in the second groove cavity; the rack slides and sets up in the downside of second casing, and first casing and second casing all are provided with the through-hole coaxial with the gear. The second shell is inserted into the first shell through the inserted first shell and the second shell to form a whole, so that the installation is simpler and more convenient, and a connecting component adopted in the prior art can be omitted; in addition, the manufacturing foundation can be provided for arranging the first shell and the second shell into different materials according to different stress conditions.

Description

Transmission box

Technical Field

The utility model relates to the technical field of doors and windows, in particular to a transmission box.

Background

Doors and windows refer to doors and windows, or windows that open at a door. In door and window lock systems, the drive box plays an important role. The driving mechanism drives the associated locking point to move up and down through the transmission box and is matched with the lock seat to finish locking and unlocking of the door and window. A good transmission box firstly requires stable and reliable structure and secondly has wide applicable handle range; the box body part of the transmission box structure in the market at present adopts two-petal type made of metal alloy materials, and the two-petal type fastening gear is fixed through a connecting piece; in the mode, the stress of the gear is concentrated on the middle part of the box body, the stress of the other parts of the box body is smaller, the other parts of the box body can be made of materials which are more cost-saving than metal alloy, and the existing two-flap type fastening structure cannot provide a foundation for using different materials at different stress positions; in addition, the two-flap type structure needs to be connected and fixed through a connecting piece, and the connecting procedure is complex.

Disclosure of Invention

The utility model aims to provide a transmission box which is more convenient to connect; and according to different stress conditions, a production foundation is provided for the shell by adopting different materials.

To achieve the purpose, the utility model adopts the following technical scheme:

the transmission box comprises a shell and a transmission assembly, wherein the transmission assembly comprises a gear and a rack which are meshed with each other,

the shell comprises a first shell and a second shell, and a first groove cavity is formed in the middle of the first shell; the second shell is inserted into the first groove cavity in a limiting manner, the second shell is provided with a second groove cavity, and the gear is arranged in the second groove cavity in a rotating manner;

the rack is arranged on the lower side of the second shell in a sliding manner;

the first shell and the second shell are respectively provided with a through hole coaxial with the gear.

Preferably, the first housing is made of plastic, and the second housing is made of metal.

Preferably, the panel is provided with a panel groove, the opening of the first groove cavity and the opening of the second groove cavity are flush, the opening of the first groove cavity and the opening of the second groove cavity are arranged in the panel groove, the rack is arranged in the panel groove, and the panel is detachably connected with the shell.

Preferably, the two opposite side walls of the first shell are provided with accommodating notches, the accommodating notches are located on the opening side of the first groove cavity, and the second shell is embedded into the accommodating notches.

Preferably, a plurality of punching notches are formed in the second housing exposing the accommodating notch, and the panel and the second housing are in punching connection at the punching notches.

Preferably, the punching notch is rectangular.

Preferably, a display notch is formed in a side wall of one side of the first shell, the second shell is embedded into the display notch, and the penetrating hole on the second shell is located at the display notch.

Preferably, a first limiting step is arranged at the inner side edge of the display notch, and a second limiting step matched with the first limiting step is arranged on the second shell.

Preferably, a first alignment mark is disposed on a side wall of the second housing, the first alignment mark is disposed on an edge of the through hole on the second housing, and a second pair Ji Biao is disposed on the gear.

Preferably, the nut comprises a nut block, two nut notches are formed in the side wall of the first shell, the two nut notches are located on two sides of the through hole, and the nut block is arranged on the nut notches in a sliding mode.

The utility model has the beneficial effects that:

the second shell is inserted into the first shell through the inserted first shell and the second shell to form a whole, so that the installation is simpler and more convenient, and a connecting component adopted in the prior art can be omitted; in addition, the second casing is used as a core stress part of the gear, the first casing can accommodate the second casing and other parts, the second casing can use materials with strong stress, and the first casing can be made of materials with more cost saving, so that a manufacturing basis is provided for enabling the first casing and the second casing to be made of different materials according to different stress conditions.

Drawings

FIG. 1 is a schematic illustration of a transmission case of the present utility model;

FIG. 2 is an exploded view of the transmission case of the present utility model;

FIG. 3 is a schematic view of a housing in the transmission case of the present utility model;

FIG. 4 is a schematic view of a first housing in the transmission case of the present utility model;

fig. 5 is a schematic view of a second housing in the transmission case of the present utility model.

In the figure:

1. a housing; 11. a first housing; 111. a first slot cavity; 112. a receiving notch; 113. displaying the notch; 114. a first limit step; 115. a nut notch; 12. a second housing; 121. a second slot cavity; 122. stamping the notch; 123. a second limit step; 124. a first alignment mark; 13. a through hole; 14. a limit protrusion; 2. a transmission assembly; 21. a gear; 22. a rack; 23. a second pair Ji Biao; 3. a panel; 31. a panel groove; 32. a limiting plate; 4. a screw; 5. a clamping piece; 6. and a nut block.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 5, the present embodiment provides a transmission case including a transmission assembly 2 and a housing 1, wherein the transmission assembly 2 includes a gear 21 and a rack 22 engaged with each other, the housing 1 includes a first housing 11 and a second housing 12, and a first groove cavity 111 is provided in a middle portion of the first housing 11; the second shell 12 is inserted into the first groove cavity 111 in a limiting manner, the second shell 12 is provided with a second groove cavity 121, and the gear 21 is rotatably arranged in the second groove cavity 121; the rack 22 is slidably provided at the lower side of the second housing 12; the first housing 11 and the second housing 12 are each provided with a through hole 13 coaxial with the gear 21.

The second shell 12 is inserted into the first shell 11 through the inserted first shell 11 and the second shell 12 to form a whole, so that the installation is simpler and more convenient, and a connecting component used for two-flap buckling in the prior art can be omitted; in addition, the second housing 12 serves as a core stress portion of the gear 21, and the first housing 11 can accommodate the second housing 12 and other components, so that the second housing 12 can use a material with strong stress, and the first housing 11 can be made of a material with more cost saving, so as to provide a manufacturing basis for enabling the first housing 11 and the second housing 12 to be made of different materials according to different stress conditions.

Referring to the embodiment in detail, as shown in fig. 1 to 5, the transmission case includes a transmission assembly 2 and a housing 1, the transmission assembly 2 including a gear 21 and a rack 22 engaged with the gear 21; the gear 21 and the rack 22 are parts commonly used in the prior art gear boxes. As shown in fig. 2 to 5, the housing 1 includes a first housing 11 and a second housing 12, wherein a first groove cavity 111 is provided at the middle part of the first housing 11, the second housing 12 is inserted into the first groove cavity 111 in a limited manner, a second groove cavity 121 is provided at the second housing 12, and the gear 21 is rotatably provided in the second groove cavity 121, so that connection by using a connecting piece is avoided through insertion between the first housing 11 and the second housing 12, on one hand, use of the connecting piece is reduced, and cost is saved; on the other hand, the connection is more convenient, so that the installation procedure is simpler and more convenient. In the present embodiment, the first housing 11 and the second housing 12 are each provided with a through hole 13 coaxial with the gear 21, so that the first housing and the second housing can be connected to an external handle square shaft through the through holes 13. Therefore, the second shell 12 is used as a core stress part, and needs to have higher strength, while the first shell 11 is positioned at the outer side of the core stress part, and the stress strength is not high; based on this, the first housing 11 is made of plastic, the second housing 12 is made of metal, and more specifically, the second housing 12 is made of zinc alloy, so that the use of metal materials can be reduced, the cost is further saved, and meanwhile, the split manufacturing is also convenient. In this embodiment, the first slot cavity 111 is flush with the opening of the second slot cavity 121 to accommodate the rack 22, and the rack 22 is slidably disposed on the lower side of the second housing 12 so that the rack 22 is engaged with the rack 22 in the second slot cavity 121.

As shown in fig. 2, the transmission box further includes a panel 3, the panel 3 has a panel groove 31, openings of the first groove cavity 111 and the second groove cavity 121 are disposed in the panel groove 31, and the rack 22 is disposed inside the openings of the first groove cavity 111 and the second groove cavity 121, so that the rack 22 slides in the panel groove 31, where it is required to be described that the rack 22 and the panel groove 31 are further connected with a screw 4 and a clamping piece 5, a slot hole is disposed on the rack 22, the clamping piece 5 covers the slot hole, the screw 4 passes through the slot hole and the clamping piece 5 to be connected to the panel 3, and installation of the rack 22, the screw 4 and the clamping piece 5 are not described in detail in the prior art.

As shown in fig. 3 to 5, in order to facilitate the detachable connection between the panel 3 and the housing 1, the opposite side walls of the first housing 11 are provided with receiving notches 112, the receiving notches 112 on both sides are symmetrically disposed, the receiving notches 112 are located on the opening side of the first slot cavity 111, and the second housing 12 is inserted into the receiving notches 112. The panel 3 is connected to the second housing 12 at the receiving notch 112. More specifically, the second housing 12 exposing the accommodating notch 112 is provided with a plurality of stamping notches 122, and the panel 3 is in stamping connection with the second housing 12 at the stamping notch 122, that is, the panel 3 located at the outer side is stamped, so that the panel 3 is locally deformed, and the deformed portion is embedded into the stamping notch 122 to form an integral limiting fixation. Further, in order to make the connection between the housing 1 and the panel 3 more stable, the top of the side wall of the panel 3 is provided with a limiting plate 32 extending toward the center of the panel 3, while the side portions of the first housing 11 and the second housing 12 are provided with limiting protrusions 14, and the limiting plate 32 and the bottom surface of the panel 3 clamp the limiting protrusions 14, so as to further limit the panel 3 and the housing 1. More specifically, the punch notch 122 is provided on the limit projection 14 of the second housing 12. Therefore, through one-time stamping connection, assembled parts are saved, production efficiency is improved, investment of the clamp jig is reduced, and cost is further saved. In this embodiment, the punching notch 122 is rectangular, so as to increase the punching area and make the connection more stable. Further, two punching notches 122 are disposed on each side of the first housing 11, and two punching notches 122 disposed on the same side are spaced apart.

In this embodiment, a display notch 113 is disposed on a side wall of one side of the first housing 11, the second housing 12 is embedded into the display notch 113, and the through hole 13 located on the second housing 12 is located at the display notch 113. The display notch 113 can further reduce the material consumption of the first shell 11 and reduce the cost; on the other hand, the second housing 12 and the gear 21 can be more conveniently installed, and alignment is facilitated. The inner side edge of the display notch 113 is provided with a first limit step 114, and the second shell 12 is provided with a second limit step 123 matched with the first limit step 114, so that the second shell 12 is inserted into the first shell 11 more firmly through the mutual matching limit of the first limit step 114 and the second limit step 123.

Further, in general, the gear 21 for the transmission case has only half circle of gear teeth, so that the gear 21 is convenient to be installed in the second groove cavity 121 for further convenience, and the gear 21 is convenient to be installed and meshed with the rack 22 after being installed; in this embodiment, a first alignment mark 124 is disposed on a side wall of the second housing 12, the first alignment mark 124 is disposed on an edge of the through hole 13 on the second housing 12, and the second pair Ji Biao is disposed on the gear 21. Therefore, the gear 21 can be correctly installed by aligning the first alignment mark 124 with the second alignment mark 23, so that the gear 21 can be installed more accurately and conveniently.

Further, the side wall of the first housing 11 is provided with two nut notches 115, and the two nut notches 115 are located at two sides of the through hole 13, so that the nut block 6 slidably disposed is mounted through the nut notches 115 for mounting the square shaft handle. The nut block 6 is of the prior art and will not be described in detail here.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The transmission box comprises a shell (1) and a transmission assembly (2), wherein the transmission assembly (2) comprises a gear (21) and a rack (22) which are meshed with each other,

the shell (1) comprises a first shell (11) and a second shell (12), and a first groove cavity (111) is formed in the middle of the first shell (11); the second shell (12) is inserted into the first groove cavity (111) in a limiting mode, the second shell (12) is provided with a second groove cavity (121), and the gear (21) is rotatably arranged in the second groove cavity (121);

the rack (22) is arranged on the lower side of the second shell (12) in a sliding way;

the first housing (11) and the second housing (12) are both provided with through holes (13) coaxial with the gear (21).

2. The transmission case according to claim 1, wherein the first housing (11) is made of plastic material and the second housing (12) is made of metal material.

3. The transmission case according to claim 1, further comprising a panel (3), the panel (3) having a panel groove (31), the first groove cavity (111) being flush with the opening of the second groove cavity (121), the opening of the first groove cavity (111) and the second groove cavity (121) being disposed in the panel groove (31), the rack (22) being disposed in the panel groove (31), the panel (3) being detachably connected to the housing (1).

4. A transmission case according to claim 3, wherein the opposite side walls of the first housing (11) are each provided with a receiving notch (112), the receiving notch (112) being located on the open side of the first slot cavity (111), the second housing (12) being fitted into the receiving notch (112).

5. The transmission case according to claim 4, wherein a plurality of punching notches (122) are provided on the second housing (12) exposing the accommodating notch (112), and the panel (3) is in punching connection with the second housing (12) at the punching notches (122).

6. The gearbox of claim 5, wherein the stamped indentation (122) is rectangular.

7. The transmission case according to claim 5, wherein a side wall of one side of the first housing (11) is provided with a display notch (113), the second housing (12) is embedded in the display notch (113), and the through hole (13) on the second housing (12) is located at the display notch (113).

8. The transmission case according to claim 7, wherein a first limit step (114) is provided at an inner edge of the display notch (113), and a second limit step (123) that mates with the first limit step (114) is provided on the second housing (12).

9. The transmission case according to claim 1, characterized in that a first alignment mark (124) is provided on a side wall of the second housing (12), the first alignment mark (124) is provided on an edge of the through hole (13) on the second housing (12), and a second pair Ji Biao (23) is provided on the gear (21).

10. The transmission case according to claim 1, further comprising a nut block (6), wherein two nut notches (115) are provided on a side wall of the first housing (11), the two nut notches (115) are located on both sides of the through hole (13), and the nut block (6) is slidably disposed on the nut notches (115).