Narrow driver and window

Abstract

The utility model belongs to the technical field of doors and windows, and provides a narrow driver and a window, the driver comprises a shell, a transmission strip and a transmission gear; the transmission gear is a partial gear and comprises a transmission section and a smooth section; the transmission section is provided with a plurality of gear teeth, the gear teeth are divided into a first tooth set and two second tooth sets, and the first tooth set is located between the two second tooth sets. The reference circle of the two second tooth sets is smaller than that of the first tooth set, and the distance between the tooth top faces of the gears of the two second tooth sets and the rotating center of the transmission gear is smaller than the distance between the tooth top faces of the gears of the first tooth set and the rotating center of the transmission gear. The transmission strip is provided with a plurality of transmission teeth used for being in transmission fit with the transmission gear, the transmission teeth are distributed in a stepped mode according to the rule that the middle is short and the two ends are high, and the transmission teeth correspond to the first tooth set and the second tooth set. According to the utility model, the width of the driver can be further reduced, so that the driver can be favorably matched with a narrow-width profile.

Description

Technical Field

[0001] The utility model belongs to the technical field of doors and windows, and specifically relates to a narrow transmission device and a window. Background Art

[0002] The door and window actuator serves as an intermediate transmission mechanism to connect the handle and the lock point. The user can unlock or lock the door and window by operating the handle. As the ultra-narrow frame products on the market are becoming more and more popular, the requirements for the width of the profile are also getting higher and higher. The actuator is generally installed in the installation cavity of the profile. The reduction in the width of the profile will cause the installation cavity to be reduced accordingly. In order to meet the installation width of the original actuator, a common practice is to continue processing on the basis of the original installation cavity of the profile so that there is space at the bottom of the installation cavity for the actuator to extend, so that the actuator can be embedded in the profile installation cavity; such as Figure 1 As shown in the figure, the prior art transmission device I is installed in the installation cavity of the profile. Due to the limited space of the installation cavity, the bottom of the transmission device I passes through the installation cavity. Figure 1 As shown in A in the middle. Although the processed profile can be adapted to the actuator, it is very difficult to perform milling in the original installation cavity of the profile, which also increases the manufacturing cost. Therefore, it is necessary to propose a narrower actuator to adapt to the profile with a narrower visible surface. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a narrow transmission device, which can further reduce the width and is conducive to adapting to narrow width profiles.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A narrow transmission device comprises a housing, a transmission bar and a transmission gear; the transmission bar and the transmission gear are arranged in the housing, the transmission bar is connected to a locking point, and the transmission gear is connected to a handle; wherein,

[0006] The transmission gear is a partial gear, including a transmission section and a smooth section; the transmission section is provided with a plurality of gear teeth, and the plurality of gear teeth are divided into a first tooth group and two second tooth groups, and along the circumferential direction of the transmission gear, the first tooth group is located between the two second tooth groups; the pitch circle of the two second tooth groups is smaller than the pitch circle of the first tooth group, and the distance from the gear tooth top surface of the two second tooth groups to the rotation center of the transmission gear is smaller than the distance from the gear tooth top surface of the first tooth group to the rotation center of the transmission gear;

[0007] The transmission bar is provided with a plurality of transmission teeth for transmission cooperation with the transmission gear, and the plurality of transmission teeth are distributed in a stepped manner with a rule of being short in the middle and high at both ends, and correspond to the first tooth group and the second tooth group.

[0008] In a preferred embodiment of the present invention, the pitch circle of the gear teeth in the second gear set gradually decreases along the circumferential direction gradually away from the first gear set.

[0009] Preferably, the top surface of the gear tooth in the second tooth set close to the first tooth set is an inclined surface, and along the direction away from the second tooth set, the top surface of the gear tooth gradually inclines toward the center of the transmission gear.

[0010] A preferred solution of the utility model further includes two connecting pieces for connecting with the handle;

[0011] The two connecting members are located on both sides of the transmission gear, and the housing is provided with a connecting cavity for accommodating the two connecting members.

[0012] Preferably, the side wall of the connecting cavity is provided with an elastic member; the outer wall of the connecting member is provided with a recess;

[0013] When the connecting member is embedded and installed in the connecting cavity, the elastic member elastically presses against the recessed position to clamp the connecting member.

[0014] Preferably, the elastic member is disposed on two opposite side walls of the connecting cavity, and the two elastic members are staggered; the concave positions are disposed on two opposite outer walls of the connecting member, and the two concave positions are staggered and correspond to the two elastic members respectively;

[0015] The connecting cavity is larger than the connecting member so that the connecting member can move in a direction approaching or away from the transmission gear.

[0016] Preferably, each of the connecting members is provided with two connecting holes, and the two connecting holes are arranged along the length direction of the transmission. In a preferred solution of the utility model, the housing comprises a first shell and a second shell, and the first shell and the second shell are assembled to form the housing.

[0017] In a preferred solution of the utility model, clamping blocks are provided at both ends of the shell.

[0018] A window comprises the above narrow actuator.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The gear teeth on the transmission gear in the utility model are divided into a first tooth group and a second tooth group. The first tooth group with a relatively large pitch circle and a large distance from the gear tooth top surface to the rotation center of the transmission gear is used to ensure effective transmission with the transmission bar, while the pitch circle of the second tooth group and the distance from the gear tooth top surface to the rotation center of the transmission gear are set to be smaller, so that the space occupied by the transmission gear can be reduced, especially when one group of the second tooth groups cooperates with the transmission bar (after the transmission gear rotates ninety degrees), the other group of the second tooth group is located on the side close to the bottom of the outer shell. At this time, the second tooth group is set to be relatively small, thereby reducing the space occupied by the transmission gear in this state, so that the width of the outer shell can be narrowed accordingly, thereby narrowing the width of the transmission device, so as to better cooperate with the original cavity of the profile, and provide favorable technical support for reducing the visible surface of the door and window profile and improving the product quality of extremely narrow frame doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the prior art in which the transmission is installed in the profile cavity.

[0023] Figure 2 It is a three-dimensional diagram of the narrow transmission device of the present utility model.

[0024] Figure 3 It is an exploded view of the narrow transmission of the utility model.

[0025] Figure 4 It is a three-dimensional diagram of the transmission gear and the transmission bar of the narrow transmission of the utility model.

[0026] Figure 5 It is a front view of the transmission gear and the transmission bar of the narrow transmission device of the utility model.

[0027] Figure 6 It is a front view of the transmission gear of the narrow transmission device of the utility model.

[0028] Figure 7 It is a front view of the housing, connecting piece and cover of the narrow transmission device of the utility model.

[0029] Figure 8 It is a three-dimensional view of the first housing of the narrow transmission of the present utility model.

[0030] Fig. 9 It is a three-dimensional diagram of the connecting piece of the narrow transmission of the utility model.

[0031] Fig.10 This is a schematic diagram of the narrow transmission device of the utility model installed in the profile cavity.

[0032] in:

[0033] Ⅰ-existing technology transmission, Ⅱ-narrow transmission of the utility model, 1-housing, 101-first shell, 102-second shell, 2-clamping block, 3-face cover, 4-connecting piece, 5-transmission gear, 501-smooth section, 502-transmission section, 5021-first tooth group, 5022-second tooth group, 5023-gear tooth top surface, 6-transmission bar, 601-transmission tooth, 7-connecting cavity, 8-elastic member. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] Example 1

[0037] See also Figure 2-Figure 10 This embodiment discloses a narrow transmission device II, including a housing 1, a cover 3, a transmission bar 6 and a transmission gear 5; the transmission bar 6 and the transmission gear 5 are arranged in the housing 1, the transmission bar 6 is connected to the locking point, and the transmission gear 5 is connected to the handle.

[0038] See also Figure 3-Figure 6In order to better meet the extremely narrow frame profile of doors and windows, the transmission gear 5 is set as a partial gear in this embodiment, including a transmission section 502 and a smooth section 501; further, the transmission section 502 of the transmission gear 5 is provided with a plurality of gear teeth, and the plurality of gear teeth are divided into a first tooth group 5021 and two second tooth groups 5022. Along the circumferential direction of the transmission gear 5, the first tooth group 5021 is located between the two second tooth groups 5022; the pitch circle of the two second tooth groups 5022 is smaller than the pitch circle of the first tooth group 5021, and the distance from the gear tooth top surface 5023 of the two second tooth groups 5022 to the rotation center of the transmission gear 5 is smaller than the distance from the gear tooth top surface 5023 of the first tooth group 5021 to the rotation center of the transmission gear 5; the transmission bar 6 is provided with a plurality of transmission teeth 601 for transmission cooperation with the transmission gear 5, and the plurality of transmission teeth 601 are distributed in a stepped manner with a rule of being short in the middle and high at both ends, and correspond to the first tooth group 5021 and the second tooth group 5022.

[0039] Through the design of the transmission gear 5 and the transmission bar 6, after the transmission gear 5 rotates 90 degrees (unlocked or locked), the width of the transmission gear 5 can be reduced, so that the housing 1 can also be appropriately narrowed, so that the width of the entire transmission device can be reduced and better matched with the narrow profile, such as Fig.10 As shown, Fig.10 The middle B shows that there is still margin between the narrow transmission device of the utility model and the bottom of the profile.

[0040] See also Figure 4-Figure 6 , further, along the circumferential direction gradually away from the first tooth set 5021, the pitch circle of the gear teeth in the second tooth set 5022 gradually decreases. Through such a design, the tooth height of the gear teeth of the second tooth set 5022 is also gradually reduced, forming a transmission gear 5 that is narrow on both sides and longer in the middle. Since the transmission gear 5 of this embodiment has such a structural feature, when the transmission gear 5 rotates 90 degrees, no more space is needed to avoid the second tooth set 5022. Therefore, the inner cavity of the housing 1 only needs to meet the distance space of the longer side of the transmission gear 5. Especially compared with the traditional partial gear, the overall width of the transmission can be effectively reduced.

[0041] In addition, in this embodiment, the top surface of the gear teeth in the second tooth group 5022 close to the first tooth group 5021 is set as an inclined surface, and along the direction away from the second tooth group 5022, the top surface of the gear teeth gradually tilts toward the center of the transmission gear 5. The top surface 5023 of the gear teeth in the second tooth group 5022 close to the first tooth group 5021 is set as such an inclined surface, so that the tooth height of the gear teeth is gradually shortened, and after the transmission gear 5 rotates 90 degrees, the top surface 5023 of the gear teeth in the second tooth group 5022 can be flatter and reduce the space, especially the distance from the gear teeth to the center of the transmission gear 5 can be shortened, thereby narrowing the space required inside the housing 1, which is conducive to forming a narrower transmission device; at the same time, because the top surface of the gear teeth is an inclined surface, the position of the gear teeth close to the first tooth group 5021 forms a structure similar to a sharp corner, and such a structure can more reliably form a transmission matching relationship with the transmission teeth 601 on the transmission bar 6, ensuring that the action control of the locking point can be completed.

[0042] Specifically in this embodiment, the first gear set 5021 has three gear teeth, the second gear set 5022 has two gear teeth, and the transmission teeth 601 on the transmission bar 6 are matched. Figure 5 and Figure 6 shown.

[0043] See also Figure 2-Figure 3 , Figure 7-Figure 9 In order to better connect and install with the handle, the transmission device of this embodiment also includes two connecting members 4 for connecting with the handle; the two connecting members 4 are located on both sides of the transmission gear 5, and the housing 1 is provided with a connecting cavity 7 for accommodating the two connecting members 4. The connecting member 4 of this embodiment is used to connect with the handle, so that the base of the handle can be fixed on the profile. The provision of the connecting member 4 is conducive to preventing the transmission device from being pulled off during the installation of the handle, thereby protecting the transmission device. The connecting member 4 of this embodiment can also refer to the anti-pull-off nut of the door and window transmission device in the prior art.

[0044] Further, the side wall of the connecting cavity 7 is provided with an elastic member 9; the outer wall of the connecting member 4 is provided with a recess 401; when the connecting member 4 is embedded and installed in the connecting cavity 7, the elastic member 9 elastically presses against the recess 401 to clamp the connecting member 4. The elastic members 9 are provided on two opposite side walls of the connecting cavity 7, and the two elastic members 9 are staggered; the recess 401 is provided on two opposite outer walls of the connecting member 4, and the two recesses 401 are staggered and correspond to the two elastic members 9 respectively; the connecting cavity 7 is larger than the connecting member 4, so that the connecting member 4 can move in the direction of approaching or moving away from the transmission gear 5. Specifically, when installing the handle, the assembly error between the connector 4 and the handle can be adjusted by moving the connector 4 in the connection cavity 7, so that the assembly between the handle and the connector 4 is more convenient and accurate; and because the elastic members 9 on the two side walls of the connection cavity 7 and the recesses 401 on the two outer walls of the connector 4 are staggered, the elastic members 9 and the recesses 401 on the same side can cooperate to achieve the positioning effect, which is ingenious in design and simple in structure. Specifically, the offset distance between the two elastic members 9 in the connection cavity 7 can be set to about 2mm, which should not be too large, otherwise it will affect the stability of clamping; and the offset of about 2mm can form an adjustment distance of about 2mm for the connector 4.

[0045] The elastic member 9 of this embodiment is an integrated structure with the housing 1, and the elastic member 9 is similar to a buckle structure, as shown in the figure. In addition, the elastic member 9 of this embodiment can also be in other forms, such as a spring, a silicone rubber or other elastic element assembled in the connection cavity 7.

[0046] The connecting member 4 of this embodiment is provided with two connecting holes 402, and the two connecting holes 402 are arranged along the length direction of the transmission. By providing two connecting holes 402 on the connecting member 4, two hole groups with different installation distances are formed between the two connecting members 4 to match handles with different installation requirements, further improving the adaptability of the transmission and the handle. The connecting hole 402 of this embodiment can be set as a threaded hole, so that it can be locked with a bolt to achieve the fixation of the handle.

[0047] The housing 1 includes a first housing 101 and a second housing 102, and the first housing 101 and the second housing 102 are assembled to form the housing 1. Specifically, the first housing 101 and the second housing 102 of this embodiment can be assembled by riveting, bolts, etc., so as to form a complete housing 1. The specific implementation of the housing 1 of this embodiment can refer to the door and window actuator of the prior art.

[0048] See also Figure 3In order to facilitate the installation and fixation between the transmission device and the profile, clamping blocks 2 are provided at both ends of the housing 1. When locking and fixing the transmission device, the clamping blocks 2 are rotated to make them press against the profile to form a clamping effect, thereby fixing the transmission device. The specific implementation and use of the clamping blocks 2 of this embodiment can be referred to the prior art.

[0049] In the narrow transmission of this embodiment, only one transmission bar is provided, that is, it is a unidirectional transmission; and the improvement of the narrow transmission of this embodiment into a bidirectional transmission should also fall within the protection scope of the present utility model. Specifically, the form of the bidirectional transmission can use a gear as an intermediate transmission element, and a concave hole is matched between the two transmission bars to achieve bidirectional transmission. The implementation method thereof can refer to the prior art.

[0050] This embodiment also discloses a window, comprising the above-mentioned narrow actuator, a window frame, a window sash, etc.

[0051] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A narrow transmission, comprising a housing, a transmission bar and a transmission gear; the transmission bar and the transmission gear are arranged in the housing, the transmission bar is connected to a locking point, and the transmission gear is connected to a handle; It is characterized in that The transmission gear is a partial gear, including a transmission section and a smooth section; the transmission section is provided with a plurality of gear teeth, and the plurality of gear teeth are divided into a first tooth group and two second tooth groups, and along the circumferential direction of the transmission gear, the first tooth group is located between the two second tooth groups; the pitch circle of the two second tooth groups is smaller than the pitch circle of the first tooth group, and the distance from the gear tooth top surface of the two second tooth groups to the rotation center of the transmission gear is smaller than the distance from the gear tooth top surface of the first tooth group to the rotation center of the transmission gear; The transmission bar is provided with a plurality of transmission teeth for transmission cooperation with the transmission gear, and the plurality of transmission teeth are distributed in a stepped manner with a rule of being short in the middle and high at both ends, and correspond to the first tooth group and the second tooth group.

2. The narrow transmission according to claim 1, It is characterized in that Along the circumferential direction gradually away from the first tooth set, the pitch circle of the gear teeth in the second tooth set gradually decreases.

3. The narrow transmission according to claim 2, It is characterized in that The top surface of the gear tooth in the second tooth group close to the first tooth group is an inclined surface, and along the direction away from the second tooth group, the top surface of the gear tooth gradually inclines toward the center side of the transmission gear.

4. The narrow transmission according to any one of claims 1 to 3, It is characterized in that Also included are two connectors for connecting to the handle; The two connecting members are located on both sides of the transmission gear, and the housing is provided with a connecting cavity for accommodating the two connecting members.

5. The narrow transmission according to claim 4, It is characterized in that The side wall of the connecting cavity is provided with an elastic member; the outer wall of the connecting member is provided with a recess; When the connecting member is embedded and installed in the connecting cavity, the elastic member elastically presses against the recessed position to clamp the connecting member.

6. The narrow transmission according to claim 5, It is characterized in that The elastic member is disposed on two opposite side walls of the connecting cavity, and the two elastic members are staggered; the concave positions are disposed on two opposite outer walls of the connecting member, and the two concave positions are staggered and correspond to the two elastic members respectively; The connecting cavity is larger than the connecting member so that the connecting member can move in a direction approaching or away from the transmission gear.

7. The narrow transmission according to claim 6, It is characterized in that Each of the connecting members is provided with two connecting holes, and the two connecting holes are arranged along the length direction of the transmission.

8. The narrow transmission according to claim 1, It is characterized in that The housing comprises a first shell and a second shell, and the first shell and the second shell are assembled to form the housing.

9. The narrow transmission according to claim 1, It is characterized in that Clamping blocks are provided at both ends of the shell.

10. A window, It is characterized in that A narrow transmission comprising the narrow transmission described in any one of claims 1-9.

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