Double-chain chain and electric window opener

Abstract

The utility model discloses a double-chain chain which comprises a first chain body and a second chain body which can be connected in an inserted mode and separated from each other through the side faces of the chain. The first chain and the second chain are mutually inserted and separated through the inner chain sheets; the utility model further discloses an electric window opener which comprises a chain box containing the double-chain chain, a chain outlet is formed in the chain box, the first chain and the second chain are arranged in a cavity of the chain box, and a push head arranged at the end of the chain is located at the chain outlet in the chain box. The first chain and the second chain are inserted into the inner side of the chain outlet of the chain box to form a double-chain chain and then pushed out through the chain outlet under driving force. The double-chain chain is suitable for various chain type execution action occasions, especially scenes with requirements for the bending freedom degree and the linkage strength, such as a chain of a chain type window opener, the bending freedom degree of the opening angle is guaranteed, and meanwhile the bearing capacity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive technical field, especially a double chain and electric window opener. BACKGROUND

[0002] Chain electric window opener has been widely used in modern buildings for its compact structure, convenient operation, high safety and other characteristics. Chain electric window opener is a kind of electric drive window opening and closing equipment, which realizes the automatic opening and closing of the window through chain transmission. Moreover, chain electric window opener has the characteristics of small size, light weight and easy installation, etc. In large glass curtain wall office buildings, shopping malls, markets, hotels, schools, hospitals and other public places, electric window opener can realize the convenient automatic opening and closing management of many windows, especially in large workshops, the windows that need ventilation are generally higher, and it is more troublesome to open and close the windows manually. It is very convenient to use electric window opener, and it can realize the unified opening or closing of all windows in the workshop, and in the case of fire and other emergencies, the window opening and closing state can be remotely controlled to facilitate rescue and escape.

[0003] CN213205334U discloses a window opener, which comprises a box body, a limiting baffle is arranged in the box body, a telescopic rod is arranged in the box body, a sleeve is vertically arranged at one end of the telescopic rod, a plurality of chain units are arranged in the box body and outside the box body, the chain units are rotationally connected through a pair of connecting plates, a rotating shaft is arranged on the side of the chain units close to one end of the telescopic rod in the box body, the rotating shaft is sleeved in the sleeve, and a connecting head is rotationally connected to one end of the chain unit at the farthest end outside the box body. The telescopic rod pushes the chain units to move, under the limiting action of the limiting baffle, the plurality of chain units slide out of the box body and push the connecting head to move, the connecting head pushes the U-shaped mounting plate to move, the U-shaped mounting plate is fixed on the window frame, so as to push the window to open, and vice versa, the telescopic rod is retracted, the chain units are pulled to move, so as to close the window, and automation is realized. However, the chain used in the window opener is in single chain form, which avoids interference by cooperating with the arc-shaped groove and the chamfered groove, but the single chain structure has multiple degrees of freedom, and in actual application, especially when the window opening resistance is large, the chain is easily bent, locked and misaligned due to large stress when it is stretched out, which affects the window opening effect. CN210239444U discloses a double chain type window opener, which is provided with a double chain structure and simultaneously controls the outward stretching or inward retraction of the two chains through the rotation of the screw rod. The double chain structure is two separate chains, which improves the window opening power as a whole, but the bending and locking may still occur under the condition of window opening angle.

[0004] Therefore, how to improve the chain transmission stability of the electric window opener, adapt to larger window opening resistance, avoid jamming and bending, and have the bending freedom of the chain, and be suitable for different window opening angle requirements is a technical problem to be solved by those skilled in the art. Utility model content

[0005] The utility model discloses a double chain chain and electric window opener applying the double chain chain to improve the chain transmission stability of the electric window opener, adapt to larger window opening resistance, avoid jamming and bending, and have the bending freedom of the chain, and be suitable for different window opening angle requirements.

[0006] To realize the above-mentioned purpose, the utility model provides a double chain chain, characterized by comprising: first chain and second chain can pass through chain side surface mutual insertion and separation;

[0007] The first chain and the second chain are composed of the outer chain sheet located at the outer side of the chain and the inner chain sheet located at the inner side of the chain, and the outer chain sheet and the inner chain sheet are cross-hinged through the pin shaft.

[0008] The first chain and the second chain are inserted and separated to each other through the inner chain sheet.

[0009] Further, the inner chain sheet is provided with an outward convex sector part, and the first chain and the second chain are inserted and separated to each other through the relatively cross sectors.

[0010] Further, the sector part comprises an interference arc convex part away from the inner chain sheet body and an interference arc concave part close to the inner chain sheet body, the interference arc convex part forms the outer arc top of the sector part, the interference arc concave part forms the inner waist part of the sector part relative to the inner chain sheet body, and the interference arc convex part and the interference arc concave part of the sectors of the first chain and the second chain inserted and separated to each other interfere and abut each other and are adapted.

[0011] Further, the interference arc convex part and the interference arc concave part abutment part are circular arc transition structures, and the circular arc transition structures form interference contact surfaces when cross-inserted.

[0012] Further, the inner chain sheet is cross-hinged through the pin shaft in pairs, and the pairs of inner chain sheets are not hinged between them, and the pairs of inner chain sheets are cross-hinged with the pairs of outer chain sheets.

[0013] Further, the outer chain sheet comprises an abutment back part on the same side of the mutual insertion and separation part with the inner chain sheet, further comprises an arc abutment part of the mutual abutment of the two outer chain sheets on the same chain, and further comprises a avoiding recess on the different side of the mutual insertion and separation part with the inner chain sheet.

[0014] Further, the arc-shaped abutting part is a circular arc transition structure, which forms an interference contact surface for relative rotation of adjacent outer chain links on the same chain;

[0015] Further, the abutting back part is an arc-shaped structure, which forms an interference contact surface for mutual rotation of adjacent outer chain links on different chains when the chains are mutually inserted or separated.

[0016] Further, a push head at the end of the chain and a connecting block at the tail of the chain are further included, the push head is provided with a push head connecting block, the first chain and the second chain are hingedly connected on the push head connecting block, and the push head connecting block is provided with a pin shaft connecting part which is sunken relative to the outer edge of the push head connecting block.

[0017] The utility model discloses a kind of electric window opener, characterized in that: including the double chain chain as described above, further including the chain box of accommodating double chain chain, the chain box is provided with chain outlet, the first chain and the second chain are divided in the cavity of chain box, and the push head of chain end part is located at the chain outlet of chain box, the first chain and the second chain are inserted into double chain chain inside chain outlet of chain box, and then pushed out through chain outlet under driving force.

[0018] Further, the tail of the first chain is a first connecting block, the tail of the second chain is a second connecting block, and the first connecting block and the second connecting block are fixedly arranged in the chain box.

[0019] The double chain chain is suitable for various chain execution occasions, especially for scenes with requirements for bending freedom and linking strength, such as the chain of a chain window opener. Since it is a double chain structure, it is suitable for various window specifications, especially large windows in factories and workshops. The double chain structure ensures the bending freedom of the opening angle while improving the carrying capacity. The electric window opener using the double chain chain has greater window opening support force and more guaranteed bending freedom, avoiding the adverse consequences of large window opening resistance and jamming and bending. The double chain structure improves the chain transmission stability of the electric window opener, adapts to larger window opening resistance while having the bending freedom of the chain, and is suitable for different window opening angle requirements. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the utility model, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0021] Figure 1A double chain chain overall structure schematic view provided by the embodiment of the utility model;

[0022] Figure 2 A first chain and second chain cooperation structure schematic view in the double chain chain provided by the embodiment of the utility model;

[0023] Figure 3 A push head structure schematic view in the double chain chain provided by the embodiment of the utility model.

[0024] Figure 4 A chain tail structure schematic view in the double chain chain provided by the embodiment of the utility model.

[0025] Figure 5 An electric window opener internal structure schematic view provided by the embodiment of the utility model.

[0026] 1, first chain;2, second chain;3, push head;4, push head connecting block;5, first connecting block;6, second connecting block;10, chain box;101, outer chain piece;102, inner chain piece;201, pin shaft;1021, fan-shaped part;1022, interference arc-shaped convex part;1023, interference arc-shaped concave part;1011, abutment back part;1012, arc-shaped abutment part;1013, avoidance concave part;401, pin shaft connecting part;501, chain tail connecting part. DETAILED DESCRIPTION

[0027] The core of the utility model is to provide a double chain chain and electric window opener using the double chain chain, to improve the chain transmission stability of electric window opener, adapt to larger window opening resistance, avoid jamming and bending, and have the bending freedom of chain, suitable for different window opening angle requirements.

[0028] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings and embodiments.

[0029] Embodiment one:

[0030] Please refer to Figures 1 to 4The utility model discloses a double chain and electric window opener, wherein one double chain comprises: first chain 1 and second chain 2 can be inserted and separated through the side of chain, through the separable insertion and separation of first chain 1 and second chain 2, first chain 1 and second chain 2 can be inserted and combined to become a double chain, the strength of chain in electric window opener is increased, and transmission stability is achieved, under the condition of guaranteeing the push-pull force, the double chain structure can avoid being stuck and being bent, and the bending degree of freedom requirement when opening and closing the window can be satisfied, so that the requirement of different window opening angles can be realized, the bending chain push-pull structure is formed, the push-pull supporting force can be improved, and being stuck and excessive bending can be avoided.

[0031] Regarding the separable insertion and separation structure, specifically, the first chain 1 and the second chain 2 are both composed of an outer chain piece 101 located on the outer side of the chain and an inner chain piece 102 located on the inner side of the chain, the outer chain piece 101 and the inner chain piece 102 are cross-hinged through a pin shaft 201, and the first chain 1 and the second chain 2 are inserted and separated with each other through the inner chain piece 102. More specifically, the inner chain piece 102 is provided with an outward convex sector part 1021, the first chain 1 and the second chain 2 are inserted and separated with each other through the relatively cross sector parts 1021, when an external force causes the first chain 1 and the second chain 2 to approach each other, the cross sector parts 1021 on the cross inner chain pieces 102 cross correspond, and under the further action of the external gathering force, the cross sector parts 1021 are inserted and buckled with each other, the sector parts 1021 between the two adjacent inner chain pieces 102 form a sector cavity, and the sector part 1021 of the other chain corresponding to the cavity can be accommodated in the cavity, realizing mutual insertion and buckling. In addition, reference can be made to the accompanying Figure 2 It can be seen in detail that the sector part 1021 includes an interference arc convex part 1022 away from the body of the inner chain piece 102 and an interference arc concave part 1023 close to the body of the inner chain piece 102, the interference arc convex part 1022 forms the outer arc top part of the sector part 1021, the interference arc concave part 1023 forms the inner waist part of the sector part 1021 relative to the body of the inner chain piece 102, and the interference arc convex part 1022 and the interference arc concave part 1023 of the sector parts 1021 of the first chain 1 and the second chain 2 inserted and cross-inserted interfere and abut against each other and adapt. In this way, the interference arc convex part 1022 and the interference arc concave part 1023 form the path contact wall of insertion, because they are both curved surfaces or arc structures, the insertion friction is small, the insertion is relatively smooth, after insertion, the outer arc top part is just inserted in the inner waist part, buckling is tight, and the structure is firm and reliable. In addition, the abutment part of the interference arc convex part 1022 and the interference arc concave part 1023 is a circular arc transition structure, the circular arc transition structure forms the interference contact surface when cross-inserting, the circular arc transition structure makes buckling more smooth and unobstructed, and also facilitates separation.

[0032] As a further explanation of the present embodiment, as shown in FIG. 6, the inner chain plates 102 are hingedly connected in pairs by the pin shafts 201 and are located inside the outer chain plates 101, the outer chain plates 101 are located outside the two pairs of inner chain plates 102, and the two pairs of inner chain plates 102 are not hingedly connected; the two pairs of inner chain plates 102 are hingedly connected with the two pairs of outer chain plates 101 in an interleaved manner. That is, the outer chain plates 101 located outside the two pairs of inner chain plates 102 are hingedly connected with the two pairs of inner chain plates 102 in an interleaved manner, and the two pairs of outer chain plates 101 are hingedly connected with the first and last parts of the two pairs of inner chain plates 102 in a front and back manner, so as to realize the hingedly connection of the inner and outer chain plates in sequence and form a single chain chain. Figure 2 The outer chain plate 101 includes an abutting back part 1011 on the same side as the mutual insertion and separation part of the inner chain plate 102, and further includes an arc-shaped abutting part 1012 for mutual abutting of two adjacent outer chain plates 101 on the same chain; and further includes an avoiding recess 1013 on the different side from the mutual insertion and separation part of the inner chain plate 102. Similar to the arc-shaped structure of the inner chain plate 102, the arc-shaped abutting part 1012 of the outer chain plate 101 is a circular arc transition structure, which forms an interference contact surface for relative rotation of adjacent outer chain plates 101 on the same chain; the abutting back part 1011 is an arc-shaped structure, which forms an interference contact surface for mutual rotation of adjacent outer chain plates on different chains when the chains are mutually inserted or separated. The outer peripheral contour of the outer chain plate 101 is cooperated by the arc-shaped structure of the abutting back part 1011, the arc-shaped contour of the avoiding recess 1013, and the arc-shaped contour of the arc-shaped abutting part 1012, so that the outer chain plates 101 on the same chain can be bent without any obstacle, and the outer chain plates 101 on different chains can also be bent without any obstacle, thereby realizing the bending freedom of the double chain chain after splicing and insertion, and avoiding being stuck. In summary, through the mutual crossing cooperation of the fan-shaped part 1021, the interference arc-shaped convex part 1022, and the interference arc-shaped concave part 1023 of the inner chain plate 102, and through the cooperation of the arc-shaped abutting back part 1011, the arc-shaped abutting part 1012, and the avoiding recess 1013 of the outer chain plate 101, the interleaved insertion and splicing of the two chain plates can be quickly realized, and the double chain chain can be used as a whole, or can be quickly disassembled for storage and arrangement, thereby improving the overall use performance of the chain, ensuring the bending freedom of the chain within a certain angle, and avoiding being stuck and damaged due to excessive bending under stress.

[0033] The double chain chain is suitable for various chain execution occasions, and is particularly suitable for scenes with requirements for bending freedom and link strength, such as chain window openers. Due to the double chain structure, it is suitable for various window specifications, especially large windows in factories and workshops. The double chain structure ensures the bending freedom of the opening angle and improves the carrying capacity.

[0034] Embodiment two:

[0035] Please refer to Figure 5The electric window opener comprises the double chain as described in embodiment one, further comprises a chain box 10 containing the double chain, the chain box 10 is provided with a chain outlet, the first chain 1 and the second chain 2 are separately arranged in the cavity of the chain box 10, the push head 3 arranged at the end of the chain is located at the chain outlet of the chain box 10, and the first chain 1 and the second chain 2 are inserted into the double chain at the inner side of the chain outlet of the chain box 10 and pushed out through the chain outlet under the driving force. The chain box 10 is installed on the window frame, the push head 3 is connected to the window frame of the window sash to be opened, such as the box body and the U-shaped mounting plate in CN213205334U, when the window needs to be opened, the chain in the chain box 10 is controlled to extend, the chain pushes the window frame of the window to be opened through the push head 3, and the chain can be bent within a certain angle during the pushing process, so as to conform to the opening track of the window, and finally the window is opened, and vice versa.

[0036] Regarding the installation of the first chain 1 and the second chain 2 in the chain box 10, as shown in the attached drawings Figure 4 The tail of the first chain 1 is a first connecting block 5, the tail of the second chain 2 is a second connecting block 6, the first connecting block 5 and the second connecting block 6 are provided with a chain tail mounting part 501 for mounting the first chain 1 or the second chain 2, the chain tail mounting part 501 is sunken relative to the first connecting block 5 or the second connecting block 6, so that the mounted chain is level with or flush with the first connecting block 5 and the second connecting block 6, and the first connecting block 5 and the second connecting block 6 are fixedly arranged in the chain box 10. In addition, the push head 3 at the end of the chain and the connecting block at the tail of the chain are also included, the push head 3 is provided with a push head connecting block 4, the first chain 1 and the second chain 2 are hingedly connected to the push head connecting block 4 through a pin shaft 201, and the push head connecting block 4 is provided with a pin shaft connecting part 401 sunken relative to the outer edge of the push head connecting block 4, so that the mounted chain is level with or flush with the push head connecting block 4.

[0037] Finally, it should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0038] The various embodiments described in this specification are presented by way of example, and each embodiment is presented for the purpose of conveying the novelty and inventive aspects of the present patent application. Each embodiment is presented in a progressive and explanatory manner, and each embodiment highlights differences from other embodiments. The same or similar parts and / or functions between embodiments are to be understood as mutual references among the embodiments.

[0039] The above description of disclosed embodiments is intended to be illustrative and not restrictive. Many modifications of these embodiments by one having ordinary skill in the art are intended to be within the scope of the following claims. Thus, the present patent application is not to be limited to the embodiments described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-stranded chain, characterized in that, The application relates to a chain device. The first chain (1) and the second chain (2) are mutually inserted and separated through the sides of the chains. The first chain (1) and the second chain (2) are composed of outer chain plates (101) located on the outer sides of the chains and inner chain plates (102) located on the inner sides of the chains, and the outer chain plates (101) and the inner chain plates (102) are cross-hinged through pin shafts (201). The first chain (1) and the second chain (2) are mutually inserted and separated through the inner chain plates (102).

2. A double-stranded chain as claimed in claim 1, characterized in that: The inner chain plates (102) are provided with outward convex sector portions (1021), and the first chain (1) and the second chain (2) are mutually inserted and separated through the relatively cross-hinged sector portions (1021).

3. A double-stranded chain as claimed in claim 2, characterized in that: The sector portion (1021) comprises an interference arc-shaped convex portion (1022) away from the body of the inner chain plate (102) and an interference arc-shaped concave portion (1023) close to the body of the inner chain plate (102); the interference arc-shaped convex portion (1022) forms the outer arc top of the sector portion (1021), and the interference arc-shaped concave portion (1023) forms the inner waist of the sector portion (1021) relative to the body of the inner chain plate (102); the interference arc-shaped convex portions (1022) and the interference arc-shaped concave portions (1023) of the mutually cross-hinged sector portions (1021) of the first chain (1) and the second chain (2) interfere and abut against each other and are matched.

4. A double chain chain as claimed in claim 3, characterized in that: The abutting portions of the interference arc-shaped convex portion (1022) and the interference arc-shaped concave portion (1023) are circular arc transition structures, which form interference contact surfaces when cross-hinged.

5. A double-stranded chain as defined in claim 3, characterized in that: The inner chain plates (102) are cross-hinged through the pin shafts (201), and the pairs of inner chain plates (102) are not cross-hinged; the pairs of inner chain plates (102) are cross-hinged with the pairs of outer chain plates (101).

6. A double-stranded chain as claimed in claim 1 or 3, characterized in that: The outer chain plate (101) comprises an abutting back portion (1011) on the same side of the mutually inserted and separated portion of the inner chain plate (102), an arc-shaped abutting portion (1012) for mutually abutting the two outer chain plates (101) on the same chain, and a recessed portion (1013) on the different side of the mutually inserted and separated portion of the inner chain plate (102).

7. A double-stranded chain as claimed in claim 6, characterized in that: The arc-shaped abutting portion (1012) is a circular arc transition structure, which forms an interference contact surface for the relative rotation of the adjacent outer chain plates (101) on the same chain. The abutting back portion (1011) is an arc-shaped structure, which forms an interference contact surface for the mutual rotation of the adjacent outer chain plates on different chains when the chains are mutually inserted or separated.

8. A double-stranded chain as claimed in any of claims 1-5, characterized in that: The chain device further comprises a push head (3) located at the end of the chain and a connecting block located at the tail of the chain, the push head (3) is provided with a push head connecting block (4), the first chain (1) and the second chain (2) are cross-hinged on the push head connecting block (4) through the pin shafts (201), and the push head connecting block (4) is provided with a pin shaft connecting portion (401) sunken relative to the outer edge of the push head connecting block (4).

9. An electric window opener characterised in that: The double chain link as claimed in any one of claims 1-8, further comprising a chain box (10) containing the double chain link, wherein the chain box (10) is provided with a chain outlet, the first chain link (1) and the second chain link (2) are separately arranged in a cavity of the chain box (10), a push head (3) arranged at an end of the chain links is located at the chain outlet of the chain box (10), and the first chain link (1) and the second chain link (2) are inserted into the double chain link at the inside of the chain outlet of the chain box (10) and are pushed out of the chain outlet under the driving force.

10. An electric window opener according to claim 9, wherein The first chain link (1) is provided with a first connecting block (5) at the tail, the second chain link (2) is provided with a second connecting block (6) at the tail, and the first connecting block (5) and the second connecting block (6) are fixedly arranged in the chain box (10).

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