A transmission housing with adjustable center distance

Abstract

The application relates to the technical field of doors and windows, and particularly discloses a transmission shell with adjustable center distance, which comprises a first shell and a second shell, a driving wheel is rotationally arranged in the first shell, at least one transmission rod is arranged in the second shell, and the driving wheel is rotationally connected in the first shell; wherein a gear condition for converting the rotary motion of the driving wheel into linear motion is arranged in the first shell, a gear shaft for converting the linear motion of the gear condition into rotary motion is arranged in the second shell, an adjusting section is arranged at one end of the gear shaft along the length, the distance from the center of the driving wheel to the second shell can be adjusted within the length range of the adjusting section, the gear condition and the gear shaft are always in driving connection, and the other end of the gear shaft is in driving connection with the transmission rod. The application can realize the adjustable center distance, ensure the normal transmission of the transmission shell, and realize the opening or locking of the door and window.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of doors and windows, and particularly relates to a transmission shell with adjustable center distance. BACKGROUND

[0002] In a door and window lock system, a transmission shell is an important existence and is indispensable as a conversion device of different motion forms. In order to realize the opening and closing of a door and window, a handle is usually connected with a driving wheel of the transmission shell, and then the handle drives the transmission shell to switch the locking member on the door and window between opening and locking through an aluminum rod linkage. The center distance refers to the distance from the contact surface of the transmission shell to the center of the driving wheel. The center distance of a common transmission shell is fixed. In order to meet the needs of different center distances, a series of transmission shells with different center distances are usually needed, which is a problem for manufacturing and warehouse material management. Although there are transmission shells with adjustable center distance in the prior art, most of such transmission shells with adjustable center distance have complex structures and are not conducive to production and promotion. SUMMARY

[0003] The present application solves the technical problems in the prior art and provides a transmission shell with adjustable center distance and simple structure.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] A transmission shell with adjustable center distance comprises a first shell body and a second shell body. A driving wheel is rotatably arranged in the first shell body. At least one transmission rod is arranged in the second shell body. The first shell body comprises an upper shell body that can move up and down and a lower shell body that is fixed to the second shell body. The driving wheel is rotatably connected in the first shell body. A gear condition that converts the rotary motion of the driving wheel into linear motion is arranged in the first shell body. A gear shaft that converts the linear motion of the gear condition into rotary motion is arranged in the second shell body. An adjusting section is arranged at one end of the gear shaft along the length. The distance from the center of the driving wheel to the second shell body can be adjusted within the length range of the adjusting section. The gear condition and the gear shaft are always in transmission connection. The other end of the gear shaft is in transmission connection with the transmission rod.

[0006] Preferably, the gear condition comprises an upper rack in transmission connection with the driving wheel and a lower rack in transmission connection with the gear shaft.

[0007] Preferably, one end of the gear shaft is provided with a first gear in transmission connection with the gear condition, and the other end of the gear shaft is provided with a second gear in transmission connection with the transmission rod respectively. The second gear is used to drive the linear motion of the transmission rod.

[0008] Preferably, one end of the gear shaft is provided with a first gear wheel connected with the toothed condition, and the other end is provided with a second gear wheel connected with the transmission rod respectively, the transmission rod comprises a first transmission rod and a second transmission rod, and the second gear wheel is connected with the first transmission rod and the second transmission rod respectively to drive the first transmission rod and the second transmission rod to move reversely.

[0009] Preferably, the first transmission rod and the second transmission rod are provided with vertical gears adapted to engage with the gear shaft.

[0010] Preferably, the first shell comprises an upper shell movable up and down and a lower shell fixed on the second shell, the upper shell and the lower shell are connected in a detachable manner, the driving wheel is installed in the upper shell, and the toothed condition is arranged in the upper shell in a sliding manner along the length direction of the upper shell.

[0011] Preferably, the lower shell is provided with a mounting cavity, and the upper shell is provided with a guide end capable of extending into the mounting cavity.

[0012] Preferably, the second shell is provided with a fastening screw for positioning the guide end, and the distance between the center of the driving wheel and the second shell is adjusted by adjusting the distance between the upper shell and the lower shell.

[0013] Preferably, the first shell comprises a front shell and a rear shell connected in a detachable manner, an active part is clamped between the front shell and the rear shell, and the driving wheel and the toothed condition are arranged on the active part; the position of the active part along the height direction of the first shell is adjustable to adjust the distance between the center of the driving wheel and the second shell.

[0014] Preferably, the active part is provided with a positioning groove along the height direction, and the front shell or the rear shell is provided with a positioning column penetrating through the positioning groove to enable the active part to move along the length direction of the positioning groove.

[0015] Preferably, the first shell comprises an upper shell and a lower shell, the driving wheel is installed in the upper shell, and a plurality of spacers are arranged between the upper shell and the lower shell to adjust the distance between the center of the driving wheel and the second shell by adjusting the distance between the upper shell and the lower shell.

[0016] By adopting the above technical scheme, the present application has the following beneficial effects:

[0017] 1. The first shell in the application is provided with a gear condition for converting the rotary motion of the driving wheel into linear motion, the second shell is provided with a gear shaft for converting the linear motion of the gear condition into rotary motion, the gear shaft is in driving connection with the transmission rod, the transmission rod moves linearly under the action of the gear shaft when the gear shaft rotates, the transmission rod drives the aluminum rod to move, the aluminum rod drives the lock rod to separate from or cooperate with the lock seat, so as to realize the opening or locking of the door and window. The first shell comprises an upper shell movable up and down and a lower shell fixed, and the driving wheel is arranged on the upper shell, that is, the driving wheel can move up and down with the upper shell to adjust the distance from the center of the driving wheel to the second shell, and within the adjustment range, the gear shaft and the gear condition always remain in driving connection. The application realizes the adjustable center distance and also ensures that the transmission shell can normally drive, realizing the opening or locking of the door and window.

[0018] 2. The gear condition can convert the rotary motion of the driving wheel into linear motion of the gear condition itself, the driving assembly further comprises a gear shaft in driving connection with the gear condition, the gear shaft can convert the linear motion of the gear condition into rotary motion of the gear shaft itself, and the gear shaft is in driving connection with the transmission rod, the transmission rod can convert the rotary motion of the gear shaft into reciprocating linear motion, so that the gear shaft plays a role of driving the linear motion of the transmission rod and also plays a role of converting the motion form of the driving wheel.

[0019] 3. In the application, one end of the gear shaft is provided with an adjusting section along the length, within the length range of the adjusting section, the distance from the center of the driving wheel to the second shell is adjustable, the gear condition always remains in driving connection with the gear shaft, and the other end of the gear shaft is in driving connection with the transmission rod, realizing the adjustable center distance and also ensuring that the transmission shell can normally drive. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below, and obviously, the drawings described below only relate to some embodiments of the application, but not limit the application.

[0021] Figure 1 It is a structural schematic view of the first shell in the embodiment one of the application;

[0022] Figure 2 It is a sectional view of the embodiment one of the application;

[0023] Figure 3 It is a structural schematic view of the first shell in the embodiment one of the application;

[0024] Figure 4 It is an exploded schematic view of the upper shell in the embodiment one of the application;

[0025] Figure 5 It is an exploded schematic view of the second shell in the embodiment one of the application;

[0026] Figure 6 Structure diagram of the gear shaft in the embodiment one of the present application;

[0027] Figure 7 Structure diagram of the gear shaft in the embodiment one of the present application;

[0028] Figure 8 Structure diagram of the embodiment two of the present application;

[0029] Figure 9 Structure diagram of the first shell in the embodiment two of the present application;

[0030] Figure 10 Structure diagram of the front shell and the rear shell in the embodiment two of the present application;

[0031] Figure 11 Structure diagram of the embodiment three of the present application;

[0032] Figure 12 Structure diagram of the first shell in the embodiment three of the present application;

[0033] Figure 13 Explosion diagram of the upper shell in the embodiment three of the present application;

[0034] Figure 14 Explosion diagram of the second shell in the embodiment four of the present application;

[0035] Reference signs:

[0036] 1. first shell; 11. driving wheel; 12. front shell; 121. positioning column; 13. rear shell; 14. upper shell; 141. guide end; 15. lower shell; 151. mounting cavity; 152. fastening screw; 16. movable piece; 161. positioning groove; 17. gasket; 2. second shell; 20, transmission rod; 21. first transmission rod; 211. vertical tooth; 22. second transmission rod; 3. driving assembly; 31. gear condition; 311. upper rack; 312. lower rack; 32. gear shaft; 321. first gear; 322. second gear. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the present application will be further described in detail below with reference to the drawings. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] Unless otherwise defined, technical or scientific terms used in this patent document shall have the ordinary meanings understood by persons of ordinary skill in the art to which this invention belongs. The terms "first," "second," and similar expressions used in the specification and claims of this invention do not denote any order, quantity, or importance, but are merely used to distinguish one component from another. Similarly, terms such as "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects preceding the phrase "include" or "comprising" include the elements or objects listed after the phrase and their equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used solely to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These terms are used solely to facilitate the description of the invention and to simplify the description. They are not intended to indicate or imply that the device or component referred to must have, be constructed, or operate in a specific orientation, and are not to be construed as limitations on the invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0042] Example 1:

[0043] See also Figures 1 to 7As shown, the transmission shell provided by the present application comprises a first shell 1 and a second shell 2, the first shell 1 is connected with the second shell 2 in a riveting manner, the first shell 1 is provided with a driving wheel 11, the center distance, i.e. the straight line distance from the center of the driving wheel 11 to the top surface of the second shell 2, the driving wheel 11 is used to be connected with the handle of the door and window, when the user rotates the handle, the driving wheel 11 will also rotate, specifically, the driving wheel 11 is partially provided with a gear, the second shell 2 is provided with a transmission rod, the transmission rod comprises a first transmission rod 21 and a second transmission rod 22 arranged horizontally, the driving wheel 11 is used to drive the first transmission rod 21 and the second transmission rod 22 to move along the straight line towards or away from each other. The gear condition 31 and the gear shaft 32 are defined as the driving assembly 3, the gear condition 31 converts the rotary motion of the driving wheel 11 into linear motion, the gear shaft 32 converts the linear motion of the gear condition 31 into rotary motion of the gear shaft 32, the gear shaft 32 is in driving connection with the first transmission rod 21 and the second transmission rod 22 respectively to make the first transmission rod 21 and the second transmission rod 22 move along the straight line towards or away from each other. Specifically, the gear condition 31 is installed in the first shell 1, and the gear shaft 32 is installed in the second shell 2.

[0044] The first shell 1 is provided with a gear condition 31 for converting the rotary motion of the driving wheel 11 into linear motion, the second shell is provided with a gear shaft 32 for converting the linear motion of the gear condition 31 into rotary motion, one end of the gear shaft 32 is provided with an adjusting section along the length, within the length range of the adjusting section, the distance from the center of the driving wheel 11 to the second shell 2 is adjustable, and the gear condition 31 and the gear shaft 32 always remain in driving connection. The other end of the gear shaft 32 is in driving connection with the transmission rod, when the gear shaft 32 rotates, the transmission rod moves along the straight line under the action of the gear shaft 32, the transmission rod drives the aluminum rod to move, and the aluminum rod drives the lock rod to separate from or cooperate with the lock seat, so as to realize the opening or locking of the door and window. The first shell 1 comprises an upper shell 14 which can move up and down and a lower shell 15 which is fixed, and the driving wheel 11 is rotatably arranged on the upper shell 14, i.e. the upper shell 14 can move up and down to adjust the distance from the center of the driving wheel 11 to the second shell 2, within the adjustment range, the gear shaft 32 and the gear condition 31 always remain in driving connection. The present application ensures that the transmission shell can normally transmit power while realizing the adjustable center distance, and realizes the opening or locking of the door and window.

[0045] In the embodiment, the driving assembly 3 is arranged to transmit the power of the driving wheel 11 to drive the first transmission rod 21 and the second transmission rod 22 to move linearly towards or away from each other, wherein the driving assembly 3 comprises a toothed condition 31 engaged with the driving wheel 11, the toothed condition 31 is capable of converting the rotary motion of the driving wheel 11 into linear motion of the toothed condition 31 itself, and the driving assembly 3 further comprises a gear shaft 32 engaged with the toothed condition 31, the gear shaft 32 is capable of converting the linear motion of the toothed condition 31 into rotary motion of the gear shaft 32 itself, and the gear shaft 32 is engaged with the first transmission rod 21 and the second transmission rod 22 respectively, the first transmission rod 21 and the second transmission rod 22 are capable of converting the rotary motion of the gear shaft 32 into linear motion, so that the gear shaft 32 plays a role of driving the first transmission rod 21 and the second transmission rod 22 to move linearly and converting the motion form of the driving wheel 11 in cooperation with the toothed condition 31, and in the application, the structure of the transmission shell is simple, which is convenient for processing and production, the engagement transmission stability of the gear shaft 32 and the toothed condition 31 is high, and the gear shaft 32 and the toothed condition 31 are not easy to be damaged.

[0046] The toothed condition 31 comprises an upper toothed bar 311 in transmission connection with the driving wheel 11 and a lower toothed bar 312 in transmission connection with the gear shaft 32. In the embodiment, the toothed condition 31 is configured in a strip shape, the upper toothed bar 311 is arranged on the upper surface of the cuboid, the lower toothed bar 312 is arranged on the inner surface of the cuboid, and the toothed condition 31 is limited in the sliding groove of the first shell body 1 and can only move linearly. The upper toothed bar 311 is a horizontal tooth engaged with the driving wheel 11, and the lower toothed bar 312 is a vertical tooth engaged with the gear shaft 32. The upper toothed bar 311 drives the entire toothed condition 31 to move linearly under the action of the driving wheel 11, so that the lower toothed bar 312 also moves linearly, and the lower toothed bar 312 can drive the gear shaft 32 to rotate when moving linearly.

[0047] The gear shaft 32 is provided with a first gear 321 in transmission connection with the toothed condition 31 and a second gear 322 in transmission connection with the first transmission rod 21 and the second transmission rod 22 at two ends respectively. The first gear 321 is a small-diameter gear, and the second gear 322 is a large-diameter gear. Specifically, the first gear 321 is defined as the adjustment section. In the embodiment, a cylindrical section without teeth is arranged between the first gear 321 and the second gear 322, and in other embodiments, a cylindrical section with teeth can also be arranged between the first gear 321 and the second gear 322. The gear shaft 32 is further rotationally connected with a circular hole on the second shell body 2, and the diameter of the circular hole is arranged to be consistent with the diameter of the first gear 321 of the gear shaft 32, which plays a role of positioning and axial limiting the gear shaft 32.

[0048] The first transmission rod 21 and the second transmission rod 22 are provided with vertical gears 211 adapted to engage with the gear shaft 32, and the first transmission rod 21 and the second transmission rod 22 are oppositely arranged on both sides of the gear shaft 32, so that the first transmission rod 21 and the second transmission rod 22 can be driven to move linearly when the gear shaft 32 rotates.

[0049] In the embodiment, the first shell 1 comprises an upper shell 14 and a lower shell 15 which are detachably connected, the driving wheel 11 is arranged in the upper shell 14, and the gear condition 31 is slidably arranged in the upper shell 14 along the length direction of the upper shell 14. Specifically, the driving wheel 11 is embedded in the upper shell 14, and the center of the driving wheel 11 has a square mounting hole adapted to a square shaft on the handle. The lower shell 15 has a mounting cavity 151, and the upper shell 14 has a guide end 141 which can extend into the mounting cavity 151. The smaller the part of the guide end 141 extending into the mounting cavity 151, the larger the center distance of the transmission shell. When the guide end 141 completely enters the mounting cavity 151, the center distance of the transmission shell is the smallest. In addition, the lower shell 15 is provided with a fastening screw 152 for positioning the guide end 141. The end of the fastening screw 152 abuts against the guide end 141. When the relative position of the guide end 141 and the mounting cavity 151 is adjusted, i.e. the center distance of the transmission shell is adjusted, the user can tighten the fastening screw 152 to position the guide end 141, so as to adjust the distance between the center of the driving wheel 11 and the second shell 2 by adjusting the distance between the upper shell 14 and the lower shell 15.

[0050] Embodiment two:

[0051] Please refer to Figures 8 to 10 As shown in the figure, the first shell 1 comprises a front shell 12 and a rear shell 13 which are rivetedly connected, and an active piece 16 is clamped between the front shell 12 and the rear shell 13. The driving wheel 11 and the gear condition 31 are arranged on the active piece 16. Specifically, the active piece 16 is provided with a positioning groove 161 in the height direction, and the front shell 12 is provided with a positioning column 121 which passes through the positioning groove 161, so that the active piece 16 can move along the length direction of the positioning groove 161, i.e. the positioning column 121 can move up and down along the length direction of the positioning groove 161 within the range of the positioning groove 161 to change the up-down position of the active piece 16, i.e. to change the position of the driving wheel 11, so as to adjust the center distance of the transmission shell. In another embodiment, the positioning column 121 can also be arranged on the rear shell 13. The side edge of the front shell 12 is provided with a fastening screw 152. When the required center distance is determined, the user can fix the position of the active piece 16 by tightening the fastening screw 152.

[0052] The other structures of the embodiment are basically the same as those of the first embodiment, and will not be described here.

[0053] Embodiment three:

[0054] Please refer toFigures 11 to 13 As shown, the first shell 1 comprises an upper shell 14 and a lower shell 15, the driving wheel 11 is installed in the upper shell 14, a plurality of spacers 17 are arranged between the upper shell 14 and the lower shell 15, the number of the spacers 17 can be 1, 2, 3…n, and the thickness can be uniform or non-uniform, the distance between the upper shell 14 and the lower shell 15 is adjusted by changing the stacked thickness of the spacers 17, so as to achieve the purpose of adjusting the center distance.

[0055] The other structures of the embodiment are basically the same as those of the first embodiment, and will not be repeated here.

[0056] Embodiment Four:

[0057] Please refer to Figure 6 and Figure 14 In the embodiment, one end of the gear shaft 32 is provided with a first gear 321 which is in transmission connection with the gear teeth 31, and the other end is provided with a second gear 322 which is in transmission connection with the transmission rod 20 respectively, and the second gear 322 is used for driving the linear motion of the transmission rod 20, the transmission rod 20 of the embodiment is only provided with one, and the transmission rod 6 can be driven to move back and forth in the linear direction by rotating the gear shaft 32, the back and forth movement of the transmission rod 20 drives the aluminum rod to move, and the aluminum rod drives the lock rod to separate from or cooperate with the lock seat, so as to realize the opening or locking of the door and window.

[0058] The other structures of the embodiment are basically the same as those of the first embodiment, and will not be repeated here.

[0059] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A center distance adjustable transmission housing comprising a first housing and a second housing, a driving wheel is rotatably arranged in the first housing, at least one transmission rod is arranged in the second housing, characterized in that, The driving wheel is rotatably connected in the first housing; The first housing is provided with a gear condition converting the rotary motion of the driving wheel into linear motion, and the second housing is provided with a gear shaft converting the linear motion of the gear condition into rotary motion, one end of the gear shaft is provided with an adjusting section, the distance from the center of the driving wheel to the second housing can be adjusted within the length of the adjusting section, the gear condition and the gear shaft are always in driving connection, and the other end of the gear shaft is in driving connection with the transmission rod.

2. The transmission housing of claim 1, wherein, The gear condition includes an upper rack in driving connection with the driving wheel and a lower rack in driving connection with the gear shaft.

3. The transmission housing of claim 1, wherein, One end of the gear shaft is provided with a first gear in driving connection with the gear condition, and the other end is provided with a second gear in driving connection with the transmission rod respectively, and the second gear is used to drive the linear motion of the transmission rod.

4. The transmission housing of claim 1, wherein, One end of the gear shaft is provided with a first gear in driving connection with the gear condition, and the other end is provided with a second gear in driving connection with the transmission rod respectively, and the transmission rod includes a first transmission rod and a second transmission rod, and the second gear is in driving connection with the first transmission rod and the second transmission rod respectively to drive the reverse motion of the first transmission rod and the second transmission rod.

5. The transmission housing of claim 4, wherein, The first transmission rod and the second transmission rod are provided with vertical gears adapted to engage with the gear shaft.

6. The transmission housing of claim 1, wherein, The first housing includes an upper housing movable up and down and a lower housing fixed to the second housing, the upper housing and the lower housing are connected in a detachable manner, the driving wheel is installed in the upper housing, and the gear condition is slidably arranged in the upper housing along the length direction of the upper housing.

7. The transmission housing of claim 6, wherein, The lower housing has a mounting cavity, and the upper housing has a guide end capable of extending into the mounting cavity.

8. The transmission housing of claim 7, wherein, The lower housing is provided with a fastening screw for positioning the guide end, and the distance from the center of the driving wheel to the second housing is adjusted by adjusting the distance between the upper housing and the lower housing.

9. The transmission housing of claim 1, wherein, The first housing includes a front housing and a rear housing connected in a detachable manner, an active part is clamped between the front housing and the rear housing, and the driving wheel and the gear condition are arranged on the active part; the position of the active part along the height direction of the first housing is adjustable to adjust the distance from the center of the driving wheel to the second housing.

10. The transmission housing of claim 9, wherein, The active part is provided with a positioning groove in the height direction, and the front housing or the rear housing is provided with a positioning column penetrating through the positioning groove, so that the active part can move along the length direction of the positioning groove.

11. The transmission housing of claim 6, wherein, A plurality of spacers are arranged between the upper housing and the lower housing, and the distance from the center of the driving wheel to the second housing is adjusted by adjusting the distance between the upper housing and the lower housing.

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