CN203979280U - window chain - Google Patents

Abstract

A window-opening chain can be clamped with a plurality of clamping teeth of a chain wheel and comprises two outer sheet units, a plurality of inner sheet units between the outer sheet units and a plurality of chain shafts which are connected in series with the outer sheet units and the inner sheet units, wherein each inner sheet unit comprises a plurality of inner chain sheets which are abutted along a length direction and can only swing in a single direction. Each inner chain sheet is provided with two inner through holes for two of the chain shafts to pass through and a clamping groove wall for defining a first clamping groove. This reality is novel directly be in set up the confession on the interior piece unit latch block first draw-in groove can simplify the kind of subassembly, improve the equipment convenience, and the dispersion the push-and-pull power that the chain axle bore.

Description

window chain

technical field

The utility model relates to a chain, in particular to a window-opening chain specially used to drive and control the opening and closing of windows.

Background technique

Existing windows are designed to be opened and closed manually. In order to improve the convenience of use, some windows are equipped with a window opener near the window frame, and the window opener can be controlled by electric means to achieve The purpose of electrically opening and closing the window. The existing window drives can be divided into chain type, rack type, screw type and crank arm type due to different driving methods.

Referring to Figures 1 and 2, it is an existing window-opening chain 1, which can be engaged with several bayonet teeth 101 of a sprocket 10, and includes: two parallel spaced outer sheet units 11, several The series connection units 12 arranged along the length direction and interposed between the outer sheet units 11 , and several chain shafts 13 for installing the series connection units 12 between the outer sheet units 11 . Each outer sheet unit 11 includes several outer chain sheets 110 that lie side by side along the length direction, each outer chain sheet 110 has two outer perforations 111, and an outer protruding wall 112 on the opposite side of the length, A concave wall 113, the protruding wall 112 of the outer chain piece 110 is in contact with the concave wall 113 of the adjacent outer chain piece 110, through the design and cooperation of the radian, the outer chain piece 110 can only pivot toward the single direction of the sprocket 10 .

The series connection unit 12 all includes two inner chain pieces 120 spaced inside and outside, two bushings 121 closely fittingly connected to the inner chain pieces 120, and two bushings 121 that are respectively worn around the outer periphery of the bushings 121. Each inner chain piece 120 has two inner perforations 123 for the bushes 121 to pass through, and an inner protruding wall 124 and an inner concave wall 125 on opposite sides of the length. The inner concave abutment wall 125 of the inner chain piece 120 of the series connection unit 12 is also abutted against the inner protrusion abutment wall 124 of the inner chain piece 120 of the adjacent series connection unit 12, and the inner chain piece 120 is limited to only Pivot toward this sprocket 10 direction. The chain shaft 13 respectively passes through the outer chain piece 110 of the outer piece unit 11 and the series connection unit 12 . Moreover, the existing chain 1 also includes several engaging spaces 14 between adjacent chain rollers 122 , and the locking teeth 101 of the sprocket 10 can be engaged in the engaging spaces 14 .

The main design concept of the existing chain 1 is to use the protruding buttress wall 112 and the concave abutment wall 113 of the outer chain piece 110, and the sticking between the inwardly protruding abutment wall 124 and the indented abutment wall 125 of the inner chain piece 120. To achieve the purpose of pivoting in one direction, but in order to achieve the aforementioned purpose, the necessary components of the chain 1 include the outer chain piece 110, the inner chain piece 120, the bushing 121, the chain roller 122 and the chain shaft 13, that is to say , the existing chain 1 not only has many types of components, but when the chain 1 needs to be matched with sprockets 10 of different specifications and the width of the engaging space 14 needs to be changed, the bushing 121 and the chain roller 122 must be changed. and the length of the chain shaft 13, so the existing chain 1 is cumbersome to manufacture. In addition, when the existing chain 1 is driven by the sprocket 10, since the force of the chain shaft 13 is concentrated on the joint with the outer chain piece 110, it is easy to bend when the force is relatively unbalanced. Therefore, the chain 1 used by the existing drive needs to adopt a chain shaft 13 with a large diameter and better structural strength.

Contents of the invention

The purpose of the utility model is to provide a window type chain which can simplify the types of components to improve the convenience of assembly and at the same time disperse the push and pull force on the chain bearing.

The window-opening chain of the utility model can be engaged with several bayonets of a sprocket, and includes two outer units, at least two inner units interposed between the outer units, and several chains connected in series The chain shafts of the outer piece unit and the inner piece unit, each outer piece unit includes several outer chain pieces that lean along a length direction and can only pivot in one direction, and each inner piece unit includes Several inner chain pieces lean against each other along the length direction and can only pivot in one direction. Each inner chain piece has two inner through holes arranged at intervals, and a slot wall located between the inner through holes and defining a first slot for the locking teeth to be locked into.

In the window-opening chain described in the present invention, each inner chain piece of the inner piece unit also has a first combined groove wall and a second combined groove wall located on the opposite side of the inner perforation; and each The inner piece unit also includes several second draw-in grooves respectively interposed between the first draw-in grooves of the inner chain pieces, and each second draw-in groove is the first combined groove wall of the inner chain piece and the adjacent The second combined groove wall of the inner chain piece is jointly defined and formed.

The window-opening chain described in the utility model comprises two first inner unit units adjacent to the outer units, and a second inner unit interposed between the first inner unit, the second The inner chain piece of the inner unit is aligned with the outer chain piece of the outer unit, and the inner chain piece of the first inner unit and the outer chain piece of the outer unit are staggered along the length direction.

The window-opening chain described in the utility model includes three first inner piece units arranged at intervals, and two second inner piece units respectively interposed between two adjacent ones of the first inner piece units , the inner chain of the second inner unit is aligned with the outer chain of the outer unit, and the inner chain of the first inner unit is aligned with the outer chain of the outer unit along the length The direction is staggered.

In the window-opening chain described in the utility model, each inner chain piece also has an inwardly protruding abutting wall, and an inwardly concave abutting wall affixed to the inwardly protruding abutting wall of an adjacent inner chain piece. The resisting wall and the recessed resisting wall are respectively located on opposite sides of the first engaging groove.

In the window-opening chain described in the utility model, each outer chain piece of the outer piece unit has two outer perforations arranged at intervals along the length direction, and one outer perforation respectively located on the opposite side of the outer perforation. Protrude against the wall, a concave against the wall, the externally protruded against the wall of each outer chain piece and the adjacent concave against the wall of the outer chain piece.

In the window-opening chain described in the utility model, the chain shafts are tightly connected with the outer perforations of the outer chain pieces, and the chain shafts are loosely inserted through the inner perforations of the corresponding inner chain pieces in the axial direction.

The beneficial effect of the utility model is that: the aforementioned structure can simplify the necessary components of the chain into three types to improve the convenience of assembly, and because the push and pull force on the chain bearing can be evenly distributed among the inner chain piece and the outer chain sheet, so the utility model can also reduce the push-pull force of the chain shaft.

Description of drawings

Fig. 1 is a side view exploded schematic diagram of an existing window type chain, illustrating the relative relationship between the chain and a sprocket wheel;

Fig. 2 is a combination top view schematic diagram of this existing window type chain;

Fig. 3 is a schematic side view of a first embodiment of the utility model chain, illustrating the relative relationship between the chain and a sprocket wheel;

Fig. 4 is an incomplete side view of the first embodiment, illustrating separately the two inner chain pieces of the chain;

Fig. 5 is a combined top view schematic diagram of the first embodiment;

Fig. 6 is a top view combined schematic view similar to Fig. 5, illustrating a second embodiment of the chain of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Referring to Figures 3, 4, and 5, a first embodiment of the window-opening chain of the present utility model can be engaged with a sprocket 2, and is driven by the sprocket 2 to move along a length direction 22, and the sprocket 2 includes Several locking teeth 21 arranged at equal angles. The chain comprises: two outer sheet units 3 extending along the longitudinal direction 22 and spaced apart in parallel, three first inner sheet units 4 extending along the longitudinal direction 22 and interposed between the outer sheet units 3 , Two second inner-chip units 4' respectively located between two adjacent ones of the first inner-chip units 4, and several series-connected outer-chip units 3, the first inner-chip units 4 and The chain shaft 5 of the second inner sheet unit 4'.

The outer piece unit 3 described in this embodiment includes several outer chain pieces 30 that lean forward and backward along the length direction 22 , and each outer chain piece 30 has two outer perforations 31 arranged at intervals along the length direction 22 , and a protruding wall 32 and a concave wall 33 respectively located on the opposite side of the outer perforation 31, the protruding wall 32 of each outer chain piece 30 is in contact with the adjacent outer chain piece 30 The outer concave abutting wall 33 is abutted against, and restricts the outer chain piece 30 from pivoting in the direction of the sprocket 2 .

The structure of the first inner sheet unit 4 and the second inner sheet unit 4' is the same, and only the first inner sheet unit 4 will be used for illustration below, that is to say, each first inner sheet unit of this embodiment 4 all include several inner chain pieces 40 that lean back and forth along the length direction 22, and each inner chain piece 40 has an inner protruding wall 41 and an inner concave abutting wall spaced apart from the inner protruding wall 41. 42. Two inner perforations 43 between the inner protruding wall 41 and the inner concave abutment wall 42, one locking groove wall 45 between the inner through holes 43 and defining a first locking groove 44, A first composite groove wall 46 connected between the inner protruding wall 41 and the groove wall 45 , and a second composite groove wall 47 connected between the inner concave wall 42 and the groove wall 45 . The inner piece unit 4 also includes several second draw-in slots 48 respectively located in the middle of the first draw-in slots 44 , and each second draw-in slot 48 is formed by the first combined groove of the inner chain piece 40 . The wall 46 is jointly defined by the second combined groove wall 47 of the adjacent inner chain piece 40 .

The inner chain 40 of the second inner unit 4' is aligned with the outer chain 30 of the outer unit 3 inside and outside, and the inner chain 40 of the first inner unit 4 is aligned with the outer chain 30. Staggered inside and outside along the length direction 22, therefore, the first slot 44 of the first inner sheet unit 4 will be aligned with the second slot 48 of the second inner sheet unit 4' inside and outside, and the first inner sheet unit 4' will be aligned inside and outside. The second card slot 48 of the chip unit 4 is also aligned inside and outside with the first card slot 44 of the second inner chip unit 4 ′. The locking teeth 21 of the sprocket 2 can extend into and engage in the first locking slot 44 and the second locking slot 48 aligned inside and outside. The chain shafts 5 are respectively tightly fitted with the outer through holes 31 of the corresponding outer chain pieces 30 in the axial direction, and loosely fitted through the inner through holes 43 of the coaxially corresponding inner chain pieces 40 .

In this embodiment, when the chain is in use, the teeth 21 of the sprocket 2 can extend into the first slot 44 and the second slot 48 aligned inside and outside, and thus achieve the purpose of driving the chain to move . Since the outwardly protruding abutment wall 32 of the outer chain piece 30 in this embodiment is in contact with the outer concave abutment wall 33 of the adjacent outer chain piece 30, the inner protruding abutment wall 41 of the inner chain piece 40 is also in contact with the adjacent outer chain piece 30. The inner concave wall 42 of the inner chain piece 40 sticks against and prevents the chain from bending in the direction opposite to the sprocket 2. Therefore, in this embodiment, the chain can pivot in one direction and drive the window to open and close.

Referring to Fig. 6, the structure of a second embodiment of the utility model chain is similar to the first embodiment, and the difference lies in the number of components, that is to say, the chain of the second embodiment comprises two outer sheet units 3, Two first inner sheet units 4 , and a second inner sheet unit 4 ′ interposed between the first inner sheet units 4 .

As can be seen from the above description, the window-opening chain of the present utility model mainly changes the structure of the inner chain piece 40, so that each inner chain piece 40 has the first card slot 44, and utilizes the front and rear side-by-side inner chains. The chain piece 40 defines the second slot 48 . The aforementioned structure is not only innovative, but also can directly use the inner chain piece 40 to form the first locking groove 44 and the second locking groove 48 without using bushings and chain rollers. To achieve the effect of streamlining the types of components and facilitating assembly.

On the other hand, the utility model can change the width of the engagement space for the locking teeth 21 of the sprocket 2 by changing the number of the first inner piece unit 4 and the second inner piece unit 4 ′, that is to say , the utility model only needs to increase or decrease the number of the first inner piece unit 4 and the second inner piece unit 4' when changing the width of the engaging space, and the length of the chain shaft 5, so when changing the size specification quite convenient. And since the utility model is subjected to push-pull force, the pulled chain shaft 5 leans against the outer chain piece 30 and the inner chain piece 40, so the push-pull force can be evenly distributed to the inner chain piece 40 and outer chain sheet 30. Therefore, when the same push and pull force is applied, the utility model can reduce the rod diameter of the chain shaft 5 and reduce the weight of the chain.

Claims (7)

1. A window-type chain, which can be engaged with several teeth of a sprocket, and includes: two outer units, and several chain shafts, each outer unit includes several The outer chain pieces are side-by-side and can only pivot in one direction; the features are as follows: The chain also includes at least two inner unit units that are adjacent to each other and interposed between the outer unit units, and each inner unit unit includes several inner chains that are side by side along the length direction and can only pivot in one direction Each of the inner chain pieces has two inner perforations spaced apart along the lengthwise direction, and a slot wall between the inner perforations and defining a first slot for engaging the teeth. . 2. The window-opening chain according to claim 1, characterized in that: each inner chain piece of the inner piece unit also has a first combination groove wall and a second combination groove wall on the opposite side of the inner piercing hole. Combined groove wall; each inner piece unit also includes several second draw-in slots respectively interposed between the first draw-in slots of the inner chain piece, and each second draw-in slot is formed by the first draw-in slot of the inner chain piece A combined groove wall is jointly defined by the second combined groove wall of the adjacent inner chain piece. 3. The window-type chain according to claim 2, characterized in that: the window-type chain comprises two first inner unit units respectively adjacent to the outer unit, and one interposed between the first inner unit The second inner unit between the units, the inner chain of the second inner unit is aligned with the outer chain of the outer unit, and the inner chain of the first inner unit is aligned with the outer chain of the outer unit The outer chain pieces are staggered along the length direction. 4. The window-opening chain according to claim 2, characterized in that: the window-opening chain comprises three first inner piece units arranged at intervals, and two interposed between the first inner piece units respectively. Adjacent to the second inner piece unit between the two, the inner chain piece of the second inner piece unit is aligned inside and outside with the outer chain piece of the outer piece unit, and the inner chain piece of the first inner piece unit is aligned with the outer chain piece of the outer piece unit The outer chain pieces of the outer piece unit are staggered along the length direction. 5. The window-type chain according to any one of claims 1 to 4, wherein each inner chain piece also has an inner protruding wall, and an adjacent inner chain piece The inwardly protruding abutting wall abuts against the inwardly concave abutting wall, and the inwardly protruding abutting wall and the inwardly concave abutting wall are respectively located on opposite sides of the first engaging groove. 6. The window-opening chain according to claim 5, characterized in that: each outer chain piece of the outer piece unit has two outer perforations arranged at intervals along the length direction, and are respectively located in the An outwardly protruding buttress wall and an outwardly concave buttress wall on the opposite side of the outer perforation, the outwardly protruding buttress wall of each outer chain piece is all affixed to the outer concave buttress wall of the adjacent outer chain piece. 7. The window-opening chain according to claim 6, characterized in that: the chain shafts are tightly connected with the outer perforations of the outer chain pieces, and the chain shafts are loosely inserted through the axially corresponding The inner perforation of the inner chain piece.