Crank arm type door opener

Abstract

The utility model provides a crank arm type door opener, and belongs to the technical field of door openers. The device comprises a mounting base, a crank arm is arranged on the mounting base, the crank arm is connected with the mounting base through a rotation driving assembly, a step located on one side of a rotating disc of the crank arm is arranged on the mounting base, microswitches are arranged on the two sides of the step, and at least one touch piece which is distributed around the rotating center of the rotating disc and can be matched with the microswitches is arranged on the rotating disc. A rotation stroke adjusting assembly is arranged between the touch piece and the rotary disc. When the touch piece touches the microswitch, the crank arm can stop swinging immediately, the closing and opening process of the door body can be controlled more accurately due to the accuracy, and therefore the using effect and safety of the door body are improved. The rotating angle and speed of the door body in the closing or opening process can be flexibly adjusted so as to meet the requirements of different use scenes or adapt to door bodies of different sizes; and the crank arm has a secondary stop function, so that the use safety and reliability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of door openers and relates to a crank-arm type door opener. Background Art

[0002] The door closer is used to realize the electric opening and closing of various doors. The swing arm of the door closer swings under the drive to drive the door to move. The swing arm stops when it hits the bumper. When the swing arm hits the bumper, the swing arm cannot continue to rotate. Since the swing arm cannot rotate, the current of the motor will increase. Once the current rises to a certain value, the protection will be triggered and the motor will stop, thus completing the entire door opening or closing action. However, when the swing arm hits the bumper, the impact force is large and it is easy to cause damage to the internal components of the door closer. After the swing arm hits the bumper, it still takes a certain amount of waiting time to trigger the protection mechanism of the motor, resulting in the door body being unable to open and close accurately, and the safety and user experience are poor. Utility Model Content

[0003] The purpose of the utility model is to provide a crank-arm door opener in view of the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A crank arm type door opener comprises a mounting base, a crank arm is provided on the mounting base, the crank arm and the mounting base are connected via a rotation drive assembly, a step is provided on the mounting base on one side of a turntable of the crank arm, micro switches are provided on both sides of the step, at least one touch member distributed around the rotation center of the turntable and capable of cooperating with the micro switch is provided on the turntable, and a rotation stroke adjustment assembly is provided between the touch member and the turntable.

[0006] Micro switches are highly reliable and safe and easy to maintain. When the touch piece touches the micro switch, the micro switch can accurately trigger the circuit action to immediately interrupt the swing of the crank arm. This precision allows the closing and opening process of the door body to be more accurately controlled, thereby improving the use effect and safety of the door body. The rotation stroke adjustment component can adjust the rotation stroke of the touch piece. By adjusting the rotation stroke of the touch piece, the rotation angle and speed of the door body during the closing or opening process can be controlled to meet the needs of different usage scenarios or adapt to doors of different sizes, thereby achieving the best closing and opening effects of the door body and improving the use experience and safety.

[0007] In the above-mentioned crank-arm door opener, the rotation stroke adjustment assembly includes a plurality of adjustment holes arranged on the turntable and distributed along the rotation center thereof, and the contact member is detachably connected to the adjustment holes.

[0008] The adjustment holes on the turntable are distributed along the rotation center of the turntable. The touch piece can be selected to be connected with different adjustment holes to flexibly adjust the rotation stroke of the touch piece, so as to conveniently control the rotation angle and speed of the door body during closing or opening.

[0009] In the above-mentioned articulated door opener, the touch member includes an arc-shaped touch block, which is connected to the adjustment hole through a fixing seat, and the fixing seat is connected to the adjustment hole through bolts, and a secondary stroke adjustment component is provided between the arc-shaped touch block and the fixing seat.

[0010] The fixed seat is detachably connected to the adjustment hole by bolts. The connection is stable and the disassembly and assembly are convenient. The secondary stroke adjustment component can adjust the rotation stroke of the arc touch block to control the rotation angle and speed of the door body during closing or opening, so as to meet the needs of different usage scenarios or adapt to doors of different sizes, achieve the best closing and opening effects of the door body, and improve the user experience and safety.

[0011] In the above-mentioned articulated door opener, the cross section of the fixing seat is non-circular, and the adjustment hole is adapted to the fixing seat.

[0012] The non-circular cross-section of the fixing seat can provide greater stability in multiple directions, increase torsional rigidity to prevent or reduce torsion, and increase the contact area with the arc-shaped touch block to increase the supporting force.

[0013] In the above-mentioned articulated arm door opener, the secondary stroke adjustment assembly includes at least one secondary adjustment bolt arranged on a fixed seat, an arc-shaped strip hole is opened on the arc-shaped touch block, and the arc-shaped touch block is fixed to the fixed seat by a secondary adjustment bolt passing through the arc-shaped strip hole.

[0014] By loosening the secondary adjusting bolt, the fixed position of the arc touch block is adjusted so that the secondary adjusting bolt can move relatively in the arc-shaped strip hole on the arc touch block. When the arc touch block moves to an appropriate position, the secondary adjusting bolt is tightened again to complete the rotation stroke adjustment operation of the arc touch block, which is convenient to operate.

[0015] In the above-mentioned articulated arm door opener, the step is also provided with a height-adjustable abutment component located on one side of the microswitch, which can abut against the fixed seat to stop the rotation of the turntable when the microswitch fails, and a gap is left between the fixed seat and the height-adjustable abutment component when the arc-shaped touch block and the microswitch are triggered.

[0016] The height-adjustable abutment assembly on the step can abut against the fixed seat to stop the turntable when the micro switch fails, thereby realizing a secondary stop function, protecting the door body, and increasing the safety and reliability of use.

[0017] In the above-mentioned crank-arm door opener, the height-adjustable abutment assembly includes a stud, the lower end of the stud is screwed into the stud hole of the step, and the upper end of the stud is provided with a tool groove.

[0018] The lower end of the stud is threadedly connected to the stud hole of the step, and the height of the stud can be flexibly adjusted, which is convenient for controlling the rotation angle and speed of the door body during closing or opening when the micro switch fails. The tool slot at the upper end of the stud facilitates the height adjustment operation of the stud.

[0019] In the above-mentioned crank arm door opener, a turntable yielding arc groove is provided on the step, and the micro switches are provided on both sides of the turntable yielding arc groove.

[0020] The turntable yielding arc groove plays a yielding role during the rotation of the turntable.

[0021] In the above-mentioned crank arm door opener, the turntable is provided with two contact members distributed around the rotation center of the turntable and capable of cooperating with the micro switches on both sides.

[0022] The two touch pieces on the turntable can cooperate with the micro switches on both sides respectively, corresponding to the precise closing and precise opening of the door body, achieving the best closing and opening effect of the door body, and improving the user experience and safety.

[0023] In the above-mentioned articulated door opener, the rotating drive assembly includes an inner gear ring arranged on a turntable, a driving gear is arranged inside the inner gear ring, the mounting seat is located on the other side of the turntable and a motor is fixed thereon, the driving shaft of the motor passes through the mounting seat and is fixedly connected to the driving gear, an opening connected to the inner gear ring is arranged on the end of the turntable away from the mounting seat, an end cover is arranged on the opening, and the end cover is fixedly connected to the inner gear ring.

[0024] When the motor is running, the drive shaft of the motor rotates, driving the drive gear to rotate, so that the turntable rotates and drives the crank arm to swing, thereby driving the door body to move. Compared with the existing technology, the advantages of the utility model are: 1. When the touch piece touches the micro switch, the crank arm can stop swinging immediately. This precision allows the closing and opening process of the door body to be more accurately controlled, thereby improving the use effect and safety of the door body. 2. The rotation angle and speed of the door body during closing or opening can be flexibly adjusted to meet the needs of different usage scenarios or to adapt to doors of different sizes. 3. The crank arm has a secondary stop function, which increases the safety and reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a bottom view provided by the utility model;

[0026] Figure 2 It is a right side view provided by the utility model;

[0027] Figure 3 It is a structural schematic diagram provided by the utility model;

[0028] Figure 4 It is a schematic diagram of the structure of the arc-shaped touch block;

[0029] Figure 5 It is a structural schematic diagram of the rotary drive assembly.

[0030] In the figure, mounting base 1, crank arm 2, rotary drive assembly 3, turntable 4, step 5, micro switch 6, touch piece 7, rotary stroke adjustment assembly 8, adjustment hole 9, arc-shaped touch block 10, fixing base 11, secondary stroke adjustment assembly 12, secondary adjustment bolt 13, arc-shaped strip hole 14, height-adjustable abutment assembly 15, stud 16, stud hole 17, tool slot 18, turntable yield arc slot 19, inner gear ring 20, drive gear 21, opening 22, and end cover 23. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 5 As shown, a crank arm type door opener includes a mounting base 1, a crank arm 2 is provided on the mounting base 1, the crank arm 2 is connected to the mounting base 1 through a rotation drive assembly 3, a step 5 is provided on the mounting base 1 and is located on one side of a turntable 4 of the crank arm 2, micro switches 6 are provided on both sides of the step 5, the turntable 4 is provided with at least one touch member 7 distributed around the rotation center of the turntable 4 and capable of cooperating with the micro switch 6, and a rotation stroke adjustment assembly 8 is provided between the touch member 7 and the turntable 4.

[0032] The crank arm 2 comprises a driving rod, one end of which is provided with a rotating disk 4 integrally connected thereto, and the other end of the driving rod is pivotally connected with a connecting rod.

[0033] In the utility model, the operation of the rotary drive component 3 can drive the turntable 4 to rotate, thereby driving the crank arm 2 to swing, and then driving the door body to move. When the turntable 4 rotates, the touch piece 7 on the turntable 4 touches the micro switch 6, and the micro switch 6 can accurately trigger the circuit action to interrupt the rotary drive component 3, so that the crank arm 2 immediately stops swinging, completing the closing or opening action of the door body.

[0034] The micro switch 6 has high reliability and safety and is easy to maintain. When the touch piece 7 touches the micro switch 6, the micro switch 6 can accurately trigger the circuit action to immediately interrupt the swing of the crank arm 2. This precision allows the closing and opening process of the door body to be more accurately controlled, thereby improving the use effect and safety of the door body. The rotation stroke adjustment assembly 8 between the touch piece 7 and the turntable 4 can adjust the rotation stroke of the touch piece 7. By adjusting the rotation stroke of the touch piece 7, the rotation angle and speed of the door body during the closing or opening process can be controlled to meet the needs of different usage scenarios or adapt to doors of different sizes, thereby achieving the best closing and opening effects of the door body and improving the use experience and safety.

[0035] Specifically, combined with Figure 1 , Figure 3 and Figure 4 As shown, the rotation stroke adjustment assembly 8 includes a plurality of adjustment holes 9 arranged on the turntable 4 and distributed along the rotation center thereof, and the contact member 7 is detachably connected to the adjustment hole 9 .

[0036] The adjustment holes 9 on the turntable 4 are distributed along the rotation center of the turntable 4. The touch member 7 can be selectively connected to different adjustment holes 9 to flexibly adjust the rotation stroke of the touch member 7, thereby conveniently controlling the rotation angle and speed of the door body during closing or opening.

[0037] Specifically, combined with Figure 1-Figure 5 As shown, the touch member 7 includes an arc-shaped touch block 10, which is connected to the adjustment hole 9 through a fixing seat 11, and the fixing seat 11 is connected to the adjustment hole 9 through bolts. A secondary stroke adjustment component 12 is provided between the arc-shaped touch block 10 and the fixing seat 11, and the secondary stroke adjustment component 12 includes at least one secondary adjustment bolt 13 arranged on the fixing seat 11. An arc-shaped strip hole 14 is opened on the arc-shaped touch block 10, and the arc-shaped touch block 10 is fixed to the fixing seat 11 through the secondary adjustment bolt 13 penetrated through the arc-shaped strip hole 14.

[0038] The fixing seat 11 is detachably connected to the adjustment hole 9 by bolts, and the connection is firm and easy to disassemble and assemble. The secondary stroke adjustment component 12 between the arc touch block 10 and the fixing seat 11 can adjust the rotation stroke of the arc touch block 10 to control the rotation angle and speed of the door body during closing or opening, so as to meet the needs of different usage scenarios or adapt to doors of different sizes, achieve the best closing and opening effects of the door body, and improve the usage experience and safety.

[0039] By loosening the secondary adjusting bolt 13, the fixed position of the arc-shaped touch block 10 is adjusted, so that the secondary adjusting bolt 13 moves relatively in the arc-shaped strip hole 14 on the arc-shaped touch block 10. When the arc-shaped touch block 10 moves to an appropriate position, the secondary adjusting bolt 13 is retightened to complete the rotation stroke adjustment operation of the arc-shaped touch block 10, which is convenient to operate.

[0040] Preferably, combined Figure 2-Figure 5 As shown, the cross section of the fixing seat 11 is non-circular, and the adjustment hole 9 is adapted to the fixing seat 11 .

[0041] The non-circular cross section of the fixing seat 11 can provide stronger stability in multiple directions, increase torsional rigidity to prevent or reduce torsion, and increase the contact area with the arc-shaped touch block 10 to increase the supporting force.

[0042] Specifically, combined with Figure 1-Figure 3As shown, the step 5 is also provided with a height-adjustable abutment component 15 located on one side of the microswitch 6, which can abut against the fixed seat 11 to stop the rotation of the turntable 4 when the microswitch 6 fails, and a gap is left between the fixed seat 11 and the height-adjustable abutment component 15 when the arc-shaped touch block 10 and the microswitch 6 are triggered. The height-adjustable abutment component 15 includes a stud 16, the lower end of the stud 16 is screwed into the stud hole 17 of the step 5, and the upper end of the stud 16 is provided with a tool groove 18.

[0043] When the turntable 4 rotates, the arc-shaped touch block 10 first hits the microswitch 6 and stops. If the microswitch 6 fails, the turntable 4 continues to rotate so that the fixing seat 11 abuts against the stud 16. The motor continues to rotate, which will increase the motor current. When the current increases to a preset threshold, the control circuit board stops the motor from rotating, realizing the secondary stop function, which protects the door body and increases the safety and reliability of use.

[0044] The lower end of the stud 16 is threadedly connected to the stud hole 17 of the step 5, and the height of the stud 16 can be flexibly adjusted, which is convenient for controlling the rotation angle and speed of the door body during closing or opening when the micro switch 6 fails. The tool groove 18 at the upper end of the stud 16 facilitates the height adjustment operation of the stud 16.

[0045] Preferably, combined Figure 1 and Figure 3 As shown, a turntable-giving arc groove 19 is provided on the step 5 , and the micro switches 6 are provided on both sides of the turntable-giving arc groove 19 .

[0046] The turntable yielding arc groove 19 plays a yielding role during the rotation of the turntable 4.

[0047] Specifically, combined with Figure 1 and Figure 3 As shown, the turntable 4 is provided with two touch members 7 distributed around the rotation center of the turntable 4 and capable of cooperating with the micro switches 6 on both sides.

[0048] The two touch members 7 provided on the turntable 4 can cooperate with the micro switches 6 on both sides respectively, corresponding to the precise closing and precise opening of the door body, respectively, to achieve the best closing and opening effect of the door body, and improve the user experience and safety.

[0049] Specifically, combined with Figure 5 As shown, the rotary drive assembly 3 includes an inner gear ring 20 arranged on the turntable 4, a driving gear 21 is arranged inside the inner gear ring 20, a mounting seat 1 is located on the other side of the turntable 4 and a motor is fixed thereon, a driving shaft of the motor passes through the mounting seat 1 and is fixedly connected to the driving gear 21, an opening 22 connected to the inner gear ring 20 is provided on the end of the turntable 4 away from the mounting seat 1, an end cover 23 is provided on the opening 22, and the end cover 23 is fixedly connected to the inner gear ring 20.

[0050] When the motor is running, the driving shaft of the motor rotates to drive the driving gear 21 to rotate, so that the turntable 4 rotates to drive the crank arm 2 to swing, thereby driving the door body to move.

[0051] The working principle of the utility model is as follows: the principles of opening and closing the door in this embodiment are the same, so in this embodiment, the door closing is specifically described, and the working principle of opening the door is not repeated. The motor runs, and the driving shaft of the motor rotates to drive the driving gear 21 to rotate, so that the rotating disk 4 rotates to drive the crank arm 2 to swing, and then drives the door body to move;

[0052] When the turntable 4 rotates, the arc-shaped touch block 10 on the turntable 4 touches the micro switch 6, which can accurately trigger the circuit action to stop the motor from rotating, so that the crank arm 2 stops swinging immediately, completing the door closing operation;

[0053] When the turntable 4 rotates, the arc-shaped touch block 10 first touches the micro switch 6 and stops. If the micro switch 6 fails, the turntable 4 continues to rotate so that the fixing seat 11 abuts against the stud 16. The motor continues to rotate, which increases the motor current. When the current increases to a preset threshold, the control circuit board stops the motor from rotating.

[0054] The arc-shaped touch block 10 can be selectively connected to different adjustment holes 9 through the fixing seat 11 to flexibly adjust the rotation stroke of the touch member 7. In addition, the rotation stroke of the arc-shaped touch block 10 can be adjusted by the secondary stroke adjustment component 12, so as to conveniently control the rotation angle and speed of the door body during the closing process; the height of the stud 16 can also be flexibly adjusted to facilitate the control of the rotation angle and speed of the door body during the closing process when the micro switch 6 fails.

[0055] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0056] Although this article uses the mounting base 1, crank arm 2, rotary drive assembly 3, turntable 4, step 5, micro switch 6, touch piece 7, rotary stroke adjustment assembly 8, adjustment hole 9, arc-shaped touch block 10, fixed base 11, secondary stroke adjustment assembly 12, secondary adjustment bolt 13, arc-shaped strip hole 14, height-adjustable abutment assembly 15, stud 16, stud hole 17, tool slot 18, turntable yield arc slot 19, inner gear ring 20, drive gear 21, opening 22, end cover 23, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A crank-arm door opener, comprising a mounting base (1), wherein a crank arm (2) is provided on the mounting base (1), wherein the crank arm (2) is connected to the mounting base (1) via a rotating drive assembly (3), wherein: The mounting seat (1) is provided with a step (5) located on one side of the turntable (4) of the crank arm (2), and micro switches (6) are provided on both sides of the step (5). The turntable (4) is provided with at least one contact member (7) distributed around the rotation center of the turntable (4) and capable of cooperating with the micro switch (6), and a rotation stroke adjustment component (8) is provided between the contact member (7) and the turntable (4).

2. The articulated door opener according to claim 1, characterized in that: The rotation stroke adjustment assembly (8) comprises a plurality of adjustment holes (9) arranged on the turntable (4) and distributed along the rotation center thereof, and the contact member (7) is detachably connected to the adjustment holes (9).

3. The articulated door opener according to claim 2, characterized in that: The touch member (7) comprises an arc-shaped touch block (10), wherein the arc-shaped touch block (10) is connected to the adjustment hole (9) via a fixing seat (11), and the fixing seat (11) is connected to the adjustment hole (9) via a bolt, and a secondary stroke adjustment component (12) is provided between the arc-shaped touch block (10) and the fixing seat (11).

4. The articulated door opener according to claim 3, characterized in that: The cross section of the fixing seat (11) is non-circular, and the adjustment hole (9) is adapted to the fixing seat (11).

5. The articulated door opener according to claim 3, characterized in that: The secondary stroke adjustment component (12) comprises at least one secondary adjustment bolt (13) arranged on the fixing seat (11); an arc-shaped strip hole (14) is opened on the arc-shaped touch block (10); and the arc-shaped touch block (10) is fixed to the fixing seat (11) by the secondary adjustment bolt (13) passing through the arc-shaped strip hole (14).

6. The articulated door opener according to claim 3, characterized in that: The step (5) is also provided with a height-adjustable abutment component (15) located on one side of the micro switch (6) and capable of abutting against the fixed seat (11) to stop the rotation of the turntable (4) when the micro switch (6) fails, and a gap is left between the fixed seat (11) and the height-adjustable abutment component (15) when the arc-shaped touch block (10) and the micro switch (6) are triggered.

7. The articulated door opener according to claim 6, characterized in that: The height-adjustable abutment assembly (15) comprises a stud (16), the lower end of which is screwed into a stud hole (17) of the step (5), and the upper end of which is provided with a tool groove (18).

8. The articulated door opener according to any one of claims 1 to 7, characterized in that: The step (5) is provided with a turntable-giving arc groove (19), and the micro switches (6) are provided on both sides of the turntable-giving arc groove (19).

9. The articulated door opener according to any one of claims 1 to 7, characterized in that: The rotating disk (4) is provided with two contact members (7) distributed around the rotating center of the rotating disk (4) and capable of cooperating with micro switches (6) on both sides.

10. The articulated door opener according to any one of claims 1 to 7, characterized in that: The rotary drive assembly (3) comprises an inner gear ring (20) arranged on a turntable (4), a driving gear (21) being arranged inside the inner gear ring (20), a motor being fixedly arranged on the mounting seat (1) on the other side of the turntable (4), a driving shaft of the motor passing through the mounting seat (1) and being fixedly connected to the driving gear (21), an opening (22) communicating with the inner gear ring (20) being arranged on one end of the turntable (4) away from the mounting seat (1), an end cover (23) being arranged on the opening (22), and the end cover (23) being fixedly connected to the inner gear ring (20).

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