Roller shutter counter assembly

Abstract

The utility model relates to the technical field of roller shutters, in particular to a roller shutter counter assembly which is composed of a counter body and a main shell, a first connecting part and a second connecting part are arranged at the two ends of the main shell respectively, the first connecting part is used for being detachably connected with the counter body, and the second connecting part is connected with a roller shutter. A circuit board is arranged in the main shell, and a position correction mechanism is arranged at the connecting end of the counter body and the main shell and allows axial rotation adjustment of the counter body and the main shell. An input connecting shaft is installed at the end, away from the main shell, of the counter body and used for obtaining the number of rotation turns. According to the design, the relative positions of the counter body and the main shell are finely adjusted through the position correction mechanism, even if forming or assembling errors exist, it can be ensured that the first connecting part and the second connecting part are smoothly installed on the roller shutter, and the installation flexibility and adaptability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of roller blind technology, specifically relating to a roller blind counter assembly. Background Technology

[0002] In modern building and home security systems, roller blinds, as a common door and window device, not only possess aesthetic and practical characteristics but also play an important role in anti-theft, dustproofing, and heat insulation. To better manage the usage of roller blinds, such as counting the number of times they are opened and closed and monitoring their usage status, roller blind counters have emerged. By recording the number of rotations of the roller blind shaft, a roller blind counter can accurately calculate the degree of opening or closing of the blind, providing users with convenient data support and also offering important reference for roller blind maintenance and troubleshooting.

[0003] However, traditional roller blind counters face numerous challenges in their design and installation. Firstly, roller blind counters typically consist of a counter body and mounting components, which inevitably contain some molding errors during manufacturing. Furthermore, assembly errors can occur during the assembly process due to limitations in the assembly technology. The accumulation of these errors often leads to unstable connections between the counter and the roller blind, or even prevents successful installation, severely impacting the counter's accuracy and lifespan.

[0004] To complicate matters further, similar molding or assembly errors may exist in the roller blind itself and its connecting components. As a large component, even minor deviations in the manufacturing and installation process of the roller blind can adversely affect the installation and use of the counter. For example, if the components on the roller blind shaft used to connect the counter are inaccurate in size or misaligned, the counter will be unable to accurately capture the rotation information of the roller blind. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a roller shutter counter assembly. The roller shutter counter assembly includes a counter body and a main housing. The first end and the second end of the main housing are respectively provided with a first connecting part and a second connecting part. The main housing is detachably connected to the counter body through the first connecting part. The second connecting part is used to connect to the roller shutter. The inner cavity of the main housing is also provided with a circuit board. The end where the counter body and the main housing are connected is also provided with a position correction mechanism. The two can be adjusted axially by the position correction mechanism. The end of the counter body away from the main housing is provided with an input connecting shaft. The counter body obtains the number of rotations of the input connecting shaft.

[0006] Preferably, the angle by which the counter body and the main housing can rotate relative to each other about the rotation axis is θ, where 1°≤θ≤5°.

[0007] Preferably, the position correction mechanism includes the correction through hole and the correction snap-fit, which are respectively disposed on the counter body and the main housing. When the counter body and the main housing are connected, the correction snap-fit ​​is snapped into the position correction through hole, and the correction snap-fit ​​can also rotate around the rotation axis within the position correction through hole.

[0008] Preferably, both the counter body and the main housing are provided with the first connecting part, and the first connecting part of one of them is located inside the first connecting part of the other. The first connecting parts of the two are also provided with a correction through hole and a correction snap-fit. When one of the counter body and the main housing is inserted into the other, the first connecting parts of the two are connected and the correction snap-fit ​​is snapped into the position correction through hole. The correction snap-fit ​​can also rotate around the axis in the position correction through hole, and the angle that the correction snap-fit ​​can rotate is θ, where 1°≤θ≤5°.

[0009] Preferably, the counter body is further fitted with a counter housing, and a locking mechanism is detachably fixed inside the counter housing. A power cord is also provided on the circuit board, the output end of the power cord is electrically connected to the circuit board, a portion of the power cord is arranged in the inner cavity of the counter housing, and the input end of the power cord passes through the counter body and is located outside it. The locking mechanism is used to fix the power cord, and a lead hole is also provided on the locking mechanism for the power cord to pass through.

[0010] Preferably, the locking mechanism includes a wire pressing slider, a slider mounting base is fixed in the inner cavity of the counter housing, the wire pressing slider is pluggably disposed in the slider mounting base, the lead wire hole is disposed on the wire pressing slider, the lead wire hole decreases in size as the wire pressing slider is inserted into the slider mounting base, and increases in size as the wire pressing slider moves away from the slider mounting base, the locking mechanism includes a slider connector, and the wire pressing slider and the slider mounting base are detachably fixed by the slider connector.

[0011] Preferably, the slider mounting base is located on one side of the wire pressing slider and spaced apart from the inner sidewall of the counter housing. The wire pressing slider can be inserted into and removed from the space, forming a variable-sized lead hole. Both the wire pressing slider and the slider mounting base have sliding surfaces that are inclined along the insertion and removal direction of the wire pressing slider. The sliding surfaces of the two surfaces cooperate with each other and can slide relative to each other along the sliding surfaces. A locking slope is provided on the side of the wire pressing slider away from the sliding surface. The locking slope is an arc surface facing the space and gradually inclines along the insertion and removal direction of the wire pressing slider, and is in the opposite direction to the inclination of the sliding surface. The size of the lead hole is adjustable when the wire pressing slider moves along the sliding surface on the slider mounting base.

[0012] Preferably, the slider connector is a screw, and the slider mounting base is also provided with a screw hole that mates with the slider connector. The wire pressing slider is provided with a movable through hole, which passes through the wire pressing slider in the same direction as the lead wire hole. The movable through hole also extends toward the lead wire hole and the locking bevel, so that when the wire pressing slider is inserted or removed from the slider mounting base, the screw hole box always corresponds to the movable through hole. The slider connector passes through the movable through hole and is threadedly fixed to the screw hole below it.

[0013] Preferably, the slider mounting base divides the counter housing into two cavities, one cavity for mounting the pressure slider and power cord, and the other cavity for mounting the main board, which is used to connect to the counter.

[0014] Preferably, the second connecting part includes a plug and a connecting ring, the plug and the connecting ring being used to connect the roller blind;

[0015] The main housing includes a first housing and a second housing. The first housing and the second housing are respectively provided with housing slots and housing clips, and the two are detachably connected through the housing slots and housing clips. Attached Figure Description

[0016] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0017] Figure 1 A schematic diagram of the structure of the roller shutter counter assembly provided in the embodiment;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective;

[0019] Figure 3 for Figure 1 A cross-sectional view located at the counter;

[0020] Figure 4 This is a schematic diagram of the structure of the counter and locking mechanism in cooperation provided in the embodiment;

[0021] Figure 5 Disassembly of the counter and locking mechanism provided in the embodiment;

[0022] Figure 6 This is a schematic diagram of the pressure slider provided in the embodiment.

[0023] Reference numerals in the attached drawings: Counter body 100, Input connecting shaft 101, Position correction mechanism 102, Correction through hole 103, Correction snap-fit ​​104, Locking mechanism 105, Wire pressing slider 106, Lead wire hole 107, Sliding surface 108, Movable through hole 109, Slider connector 110, Screw head 111, Screw hole 112, Limiting plate 113, Slider mounting base 114, Locking slope 115, Main board 116, Counter housing 117, Main housing 200, First connecting part 201, Second connecting part 202, First housing 203, Second housing 204, Housing slot 205, Housing snap-fit ​​206, Circuit board 207, Plug-in part 208, Connecting ring 209. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings.

[0025] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please refer to Figures 1 to 6 This utility model provides a roller shutter counter assembly, which includes a counter body 100 and a main housing 200. The first end and the second end of the main housing 200 are respectively provided with a first connecting part 201 and a second connecting part 202. The main housing 200 is detachably connected to the counter body 100 through the first connecting part 201. The second connecting part 202 is used to connect to the roller shutter. The inner cavity of the main housing 200 is also provided with a circuit board 207. The end where the counter body 100 and the main housing 200 are connected is also provided with a position correction mechanism 102. The two can be adjusted by axial rotation through the position correction mechanism. The end of the counter body 100 away from the main housing 200 is provided with an input connecting shaft 101. The counter body 100 obtains the number of rotations of the input connecting shaft 101.

[0028] This invention allows the counter body 100 and the main housing 200 to be axially rotated at the connection end through the position correction mechanism 102. By fine-tuning the relative position between the two, the relative position of the first connecting part 201 and the second connecting part 202 can be finely adjusted. Therefore, even if there are molding or assembly errors in the components of the counter body, the main housing 200, the first connecting part 201 and the second connecting part 202, or molding or assembly errors in the connecting parts on the roller shutter used to install the first connecting part 201 and the second connecting part 202, the position correction mechanism 102 can still correct these errors, ensuring that the first connecting part 201 and the second connecting part 202 are smoothly installed on the roller shutter.

[0029] In a preferred embodiment, the counter body 100 and the main housing 200 can rotate relative to each other around a rotation axis by an angle θ, where 1° ≤ θ ≤ 5°. Research has shown that limiting the range of relative rotation angles between the counter body 100 and the main housing 200 ensures sufficient fine-tuning space while avoiding installation instability caused by excessive rotation.

[0030] Please refer to Figures 3 to 5 In a preferred embodiment, the position correction mechanism 102 includes a correction through hole 103 and a correction snap-fit ​​member 104. The correction through hole 103 and the correction snap-fit ​​member 104 are respectively disposed on the counter body 100 and the main housing 200. When the counter body 100 and the main housing 200 are connected, the correction snap-fit ​​member 104 is snapped into the position correction through hole 103, and the correction snap-fit ​​member 104 can also rotate around the rotation axis within the position correction through hole 103.

[0031] The correction connector 104 can be snapped into the correction through hole 103 and rotate around the rotation axis to achieve fine adjustment. The design of the correction through hole 103 and the correction connector 104 makes the connection between the counter body 100 and the main housing 200 more flexible and stable, further improving the accuracy and reliability of installation.

[0032] In a preferred embodiment, both the counter body 100 and the main housing 200 are provided with a first connecting portion 201. The first connecting portion 201 of one of them is located inside the first connecting portion 201 of the other. The first connecting portions 201 of the two are also provided with a correction through hole 103 and a correction snap-fit ​​104, respectively. When one of the counter body 100 and the main housing 200 is inserted into the other, the first connecting portions 201 of the two are connected and the correction snap-fit ​​104 is snapped into the position correction through hole 103. The correction snap-fit ​​104 can also rotate around the axial direction in the position correction through hole 103, and the angle that the correction snap-fit ​​104 can rotate is θ, where 1°≤θ≤5°.

[0033] Please refer to Figures 3 to 5The two first connecting parts 201 are nested together, and through the cooperation of the correction snap-fit ​​part 104 and the correction through hole 103, a fine-tuning function within a specified angle range is achieved. The design of the double first connecting parts 201, and the cooperation of the correction through hole 103 and the correction snap-fit ​​part 104, achieves a more stable and flexible connection, further improving the convenience and accuracy of installation.

[0034] In a preferred embodiment, a counter housing 117 is also provided outside the counter body 100. A locking mechanism 105 is detachably fixed inside the counter housing 117. A power cord is also provided on the circuit board 207. The output end of the power cord is electrically connected to the circuit board 207. A part of the power cord is arranged in the inner cavity of the counter housing 117. The input end of the power cord passes through the counter body 100 and is located outside it. The locking mechanism 105 is used to fix the power cord. A lead hole 107 is also provided on the locking mechanism 105 for the power cord to pass through.

[0035] The locking mechanism 105, through the cooperation of the wire-pressing slider 106 and the slider mounting base 114, secures the power cord within the counter housing 117, ensuring a stable connection of the power cord. This avoids circuit failures caused by loose power cords, improves the stability and safety of the counter, and better meets the relevant power cord testing requirements.

[0036] Please refer to Figures 3 to 6 In a preferred embodiment, the locking mechanism 105 includes a wire pressing slider 106. A slider mounting base 114 is fixed inside the counter housing 117. The wire pressing slider 106 is detachably mounted on the slider mounting base 114. A lead wire hole 107 is provided on the wire pressing slider 106. The lead wire hole 107 becomes smaller as the wire pressing slider 106 is inserted into the slider mounting base 114, and becomes larger as the wire pressing slider 106 moves away from the slider mounting base 114. The locking mechanism 105 includes a slider connector 110. The wire pressing slider 106 and the slider mounting base 114 are detachably fixed by the slider connector 110.

[0037] The wire clamping slider 106 is detachably mounted on the slider mounting base 114. By adjusting the position of the wire clamping slider 106, the power cord can be fixed and released. The design of the wire clamping slider 106 and the slider mounting base 114 makes fixing the power cord more convenient and reliable, improving installation efficiency.

[0038] Please refer to Figures 3 to 6In a preferred embodiment, the slider mounting base 114 is located on one side of the wire pressing slider 106 and spaced apart from the inner sidewall of the counter housing 117. The wire pressing slider 106 can be inserted into and removed from the space, forming a variable-sized lead hole 107. Both the wire pressing slider 106 and the slider mounting base 114 are provided with sliding surfaces 108. The sliding surfaces 108 are inclined along the insertion and removal direction of the wire pressing slider 106. The sliding surfaces 108 of the two are mutually engaged and can slide relative to each other along the sliding surfaces 108. A locking slope 115 is provided on the side of the wire pressing slider 106 away from the sliding surface 108. The locking slope 115 is an arc surface facing the space. The locking slope 115 is gradually inclined along the insertion and removal direction of the wire pressing slider 106 and is opposite to the inclination direction of the sliding surface 108. The size of the lead hole 107 is adjustable when the wire pressing slider 106 moves along the sliding surface 108 on the slider mounting base 114.

[0039] The sliding surface 108 and the locking ramp 115 cooperate with each other. When the wire pressing slider 106 is inserted or removed, the sliding surface 108 guides the wire pressing slider 106 to move, while the locking ramp 115 automatically adjusts the size of the lead hole 107 to ensure that the power cord is pressed and fixed, further improving the stability and convenience of power cord fixing. At the same time, due to the inclined design of the locking ramp 115, the lead hole 107 gradually narrows away from the direction of power cord insertion, so as to better meet the power cord tensile test. The wire pressing slider 106 with the locking ramp 115 is similar to a wedge structure. When it is inserted into the above-mentioned gap, the pressure applied to the power cord increases with the increase of the insertion depth. The wedge structure can effectively prevent the power cord from being pulled out of the roller shutter counter assembly.

[0040] In a preferred embodiment, the slider connector 110 is a screw, and the slider mounting base 114 is also provided with a screw hole 112 that mates with the slider connector 110. The wire pressing slider 106 is provided with a movable through hole 109. The movable through hole 109 passes through the wire pressing slider 106 in the same direction as the lead hole 107. The movable through hole 109 also extends toward the lead hole 107 and the locking slope 115, so that when the wire pressing slider 106 is inserted into or removed from the slider mounting base 114, the screw hole 112 always corresponds to the movable through hole 109. The slider connector 110 passes through the movable through hole 109 and is threadedly fixedly connected to the screw hole 112 below it.

[0041] The screw head 111 is larger than the movable through hole 109, which secures the wire pressing slider 106 to the slider mounting base 114. The movable through hole 109 facilitates the installation of different types of power cables, while improving the installation efficiency of the wire pressing slider 106, slider connector 110, and power cables. The design of the screw and the movable through hole 109 makes the wire pressing slider 106 more securely fixed and easier to disassemble, improving the convenience of installation and maintenance.

[0042] Please refer to Figures 4 to 5In a preferred embodiment, the slider mounting base 114 divides the counter housing 117 into two cavities, one cavity for mounting the wire pressing slider 106 and the power cord, and the other cavity for mounting the main board 116, which is used to connect to the counter.

[0043] The motherboard 116 is electrically and signal-connected to the counter. The two-cavity design facilitates space utilization and power cable routing. The cavity partitioning design within the counter housing 117 allows for the orderly installation of various components, improving overall compactness and stability.

[0044] Please refer to Figure 1 and Figure 2 In a preferred embodiment, the second connecting portion 202 includes a plug-in member 208 and a connecting ring 209, which are used to connect the roller blind. The main housing 200 includes a first housing 203 and a second housing 204, each of which is provided with a housing slot 205 and a housing clip 206, and the two are detachably connected through the housing slot 205 and the housing clip 206, respectively.

[0045] The housing slot 205 and housing clip 206 are used to connect the first housing 203 and the second housing 204 of the main housing 200. Through the cooperation of these components, the main housing 200 is quickly installed and securely connected, while also facilitating the installation of the circuit board 207. The connection between the plug-in 208 and the connecting ring 209 and the roller shutter is prior art and not within the scope of this utility model. The input connecting shaft 101 is a square rod, mainly connecting the roller shutter motor and the transmission assembly; this part is prior art and not within the scope of this utility model.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A roller blind counter assembly, characterized in that, The roller shutter counter assembly includes a counter body and a main housing. The first end and the second end of the main housing are respectively provided with a first connecting part and a second connecting part. The main housing is detachably connected to the counter body through the first connecting part. The second connecting part is used to connect to the roller shutter. The inner cavity of the main housing is also provided with a circuit board. The end where the counter body and the main housing are connected is also provided with a position correction mechanism. The two can be adjusted by axial rotation through the position correction mechanism. The end of the counter body away from the main housing is provided with an input connecting shaft. The counter body obtains the number of rotations of the input connecting shaft.

2. The roller shade counter assembly of claim 1, wherein, The counter body and the main housing can rotate relative to each other around the rotation axis by an angle θ, where 1°≤θ≤5°.

3. The roller shade counter assembly of claim 1, wherein, The position correction mechanism includes a correction through hole and a correction snap-fit ​​component. The correction through hole and the correction snap-fit ​​component are respectively disposed on the counter body and the main housing. When the counter body and the main housing are connected, the correction snap-fit ​​component is snapped into the correction through hole, and the correction snap-fit ​​component can also rotate around the rotation axis within the correction through hole.

4. The roller shade counter assembly of claim 1, wherein, Both the counter body and the main housing are provided with the first connecting part, and the first connecting part of one of them is located inside the first connecting part of the other. The first connecting parts of the two are also provided with a correction through hole and a correction snap-fit. When one of the counter body and the main housing is inserted into the other, the first connecting parts of the two are connected and the correction snap-fit ​​is snapped into the correction through hole. The correction snap-fit ​​can also rotate around the axis in the correction through hole, and the angle that the correction snap-fit ​​can rotate is θ, where 1°≤θ≤5°.

5. The roller shade counter assembly of claim 1, wherein, The counter body is further fitted with a counter housing, and a locking mechanism is detachably fixed inside the counter housing. A power cord is also provided on the circuit board, and the output end of the power cord is electrically connected to the circuit board. A portion of the power cord is laid in the inner cavity of the counter housing, and the input end of the power cord passes through the counter body and is located outside it. The locking mechanism is used to fix the power cord, and a lead hole is also provided on the locking mechanism for the power cord to pass through.

6. The roller shade counter assembly of claim 5, wherein, The locking mechanism includes a wire pressing slider. A slider mounting base is fixed inside the counter housing. The wire pressing slider is detachably mounted on the slider mounting base. A lead wire hole is provided on the wire pressing slider. The lead wire hole decreases in size as the wire pressing slider is inserted into the slider mounting base and increases in size as the wire pressing slider moves away from the slider mounting base. The locking mechanism includes a slider connector. The wire pressing slider and the slider mounting base are detachably fixed through the slider connector.

7. The roller shade counter assembly of claim 6, wherein, The slider mounting base is located on one side of the wire pressing slider and spaced apart from the inner wall of the counter housing. The wire pressing slider can be inserted and removed into the gap, forming a variable-sized lead hole. Both the wire pressing slider and the slider mounting base are provided with sliding surfaces. The sliding surfaces are inclined along the insertion and removal direction of the wire pressing slider. The sliding surfaces of the two are mutually engaged and can slide relative to each other along the sliding surfaces. The side of the wire pressing slider away from the sliding surface is provided with a locking slope. The locking slope is an arc surface facing the gap. The locking slope gradually slopes along the insertion and removal direction of the wire pressing slider and is opposite to the slope direction of the sliding surface. The size of the lead hole is adjustable when the wire pressing slider moves along the sliding surface on the slider mounting base.

8. The roller shutter counter assembly as claimed in claim 7, characterized in that, The slider connector is a screw, and the slider mounting base is also provided with a screw hole that mates with the slider connector. The wire pressing slider is provided with a movable through hole, which passes through the wire pressing slider in the same direction as the lead wire hole. The movable through hole also extends toward the lead wire hole and the locking bevel, so that when the wire pressing slider is inserted or removed from the slider mounting base, the screw hole always corresponds to the movable through hole. The slider connector passes through the movable through hole and is threadedly fixed to the screw hole below it.

9. The roller shade counter assembly of claim 6, wherein, The slider mounting base divides the counter housing into two cavities, one cavity for installing the pressure slider and power cord, and the other cavity for installing the main board, which is used to connect to the counter.

10. The roller shade counter assembly of claim 1, wherein, The second connecting part includes a plug and a connecting ring, which are used to connect the roller blind; The main housing includes a first housing and a second housing. The first housing and the second housing are respectively provided with housing slots and housing clips, and the two are detachably connected through the housing slots and housing clips.

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