Mechanical automatic retracting door opener

Abstract

The present invention discloses a mechanical automatic retracting door opener, which belongs to the technical field of door openers. The mechanical automatic retracting door opener comprises: a housing; wherein the housing is rotatably connected to an energy storage shaft; an energy storage arm rotatably connected to the energy storage shaft; wherein the energy storage arm is fixedly connected to a silent connecting plate and a tension spring buckle; a tension spring member, the two ends of which are respectively connected to the tension spring buckle and the housing; a push rod member slidably connected to the housing; wherein the push rod member matches the silent connecting plate; a limiting component, which is provided on the housing and is used to limit the sliding of the push rod member; a reset component, which is used to push the push rod member to reset when the limiting component leaves the push rod member; the present invention is composed of a connecting and disassembly structure, and the door can be opened automatically by pressing the cabinet door once, and the door can be closed without manual pressing again when closing the door, which is simple to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of door openers, and in particular to a mechanical automatic retracting door opener. Background Art

[0002] A cabinet is a container used to store clothes, documents, etc. It is square or rectangular and is usually made of wood or iron.

[0003] A door refers to an entrance or exit or a device installed at an entrance or exit that can control the switch. When a cabinet is used, a door will be set. In order to facilitate opening, existing doors are often equipped with door openers.

[0004] Existing door openers only have the function of opening the door and no retraction function, which means that the door must be closed manually. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the existing door opener only has the door opening effect but no retraction function, resulting in the need for manual pressing to close the door, and to propose a mechanical automatic retraction door opener.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A mechanical automatic retracting door opener comprises: a shell; wherein the shell is rotatably connected to an energy storage shaft; an energy storage arm rotatably connected to the energy storage shaft; wherein the energy storage arm is fixedly connected to a silent connecting plate and a tension spring buckle; a tension spring member, the two ends of which are respectively connected to the tension spring buckle and the shell; a push rod member slidably connected to the shell; wherein the push rod member matches the silent connecting plate; a limiting assembly, which is arranged on the shell and is used to limit the sliding of the push rod member; a reset assembly, which is used to push the push rod member to reset when the limiting assembly leaves the push rod member, wherein a gap adjustment screw is threadedly connected to the push rod member, and the gap adjustment screw is in contact with the silent connecting plate.

[0008] In order to facilitate the sliding of the silent connecting plate, preferably, a silent wheel is rotatably connected to the silent connecting plate.

[0009] Preferably, the reset assembly includes: a pry bar shaft connected to the housing; a pry bar member rotatably connected to the pry bar shaft; wherein one end of the pry bar member is rotatably connected to the push rod member; a conversion shaft and a spring lower shaft rotatably connected to the housing; a conversion rod connected to the conversion shaft; wherein the conversion rod is rotatably connected to the spring upper shaft; a spring core, both ends of which are rotatably connected to the spring upper shaft and the spring lower shaft respectively; wherein an energy storage spring is sleeved on the spring core, and one end of the pry bar member away from the push rod member is slidably connected to the spring core, and the pry bar member is in contact with the energy storage spring.

[0010] Preferably, the diameter of the groove on the pry bar member that contacts the spring core and the push rod member is larger than the diameter of the spring core.

[0011] Preferably, a push rod tension spring is connected to the housing, and the other end of the push rod tension spring is fixedly connected to the push rod member.

[0012] Preferably, a bearing is rotatably connected to the conversion rod, and the bearing is in contact with the energy storage arm.

[0013] Preferably, the limiting assembly includes: a first locking point rod slidably connected to the outer shell; wherein a push rod groove is provided on the push rod member, and the width of the push rod groove is greater than the width of the second locking point rod; a first locking point spring, both ends of which are fixedly connected to the first locking point rod and the outer shell respectively; a first locking point push rod slidably connected to the outer shell; a first locking point tension spring located on the push rod member on the same side as the first locking point spring, both ends of which are fixedly connected to the first locking point push rod and the first locking point rod respectively; a first inclined plate connected to the first locking point push rod, and the first inclined plate matches the end of the conversion rod away from the rotating shaft on the spring.

[0014] Preferably, the limiting assembly includes: a third locking rod slidably connected to the outer shell; wherein a push rod groove is provided on the push rod member, and the width of the push rod groove is greater than the width of the third locking rod; a third locking spring, both ends of which are fixedly connected to the third locking rod and the outer shell; a second locking push rod slidably connected to the outer shell; a second locking tension spring located on the other side of the push rod member away from the third locking spring, both ends of which are fixedly connected to the second locking push rod and the outer shell; a second inclined plate connected to the second locking push rod, the second inclined plate matching the end of the conversion rod away from the rotating shaft on the spring; wherein, the end of the second locking push rod close to the second inclined plate is fixedly connected to a push plate, and the push plate is in contact with the third locking rod.

[0015] Preferably, the limiting assembly includes: a second locking point rod rotatably connected to the outer shell; wherein a push rod groove is provided on the push rod member, and the width of the push rod groove is greater than the width of the second locking point rod; a locking point torsion spring, the two ends of which are respectively fixedly connected to the second locking point rod and the outer shell; a third locking point push rod slidably connected to the outer shell; a third locking point tension spring, the two ends of which are respectively fixedly connected to the third locking point push rod and the second locking point rod; a third inclined plate connected to the third locking point push rod, and the third inclined plate matches the end of the conversion rod away from the rotating shaft on the spring.

[0016] The limiting assembly includes: a fourth locking rod slidably connected to the housing; wherein the push rod member is provided with a push rod groove, the width of the push rod groove being greater than the width of the fourth locking rod; a fourth locking spring, both ends of which are fixedly connected to the fourth locking rod and the housing; a fourth locking push rod slidably connected to the housing; a fourth locking tension spring, both ends of which are fixedly connected to the fourth locking push rod and the housing; a driven plate connected to the fourth locking push rod, the driven plate matching the end of the conversion rod away from the rotating shaft on the spring.

[0017] Compared with the prior art, the present invention provides a mechanical automatic retracting door opener with the following beneficial effects:

[0018] The parts not involved in this device are the same as the existing technology or can be implemented by using the existing technology. The present invention is composed of a connecting and disassembly structure. The door can be opened automatically by pressing the cabinet door once. When closing the door, the door opener can be closed without manual pressing again. The operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the mechanical automatic retracting door opener proposed in the present invention;

[0020] Figure 2 This is a schematic structural diagram of the energy storage arm of the mechanical automatic retracting door opener proposed in the present invention;

[0021] Figure 3 This is a schematic structural diagram of the tension spring component of the mechanical automatic retracting door opener proposed by the present invention;

[0022] Figure 4 This is a schematic structural diagram of the pry bar component of the mechanical automatic retracting door opener proposed by the present invention;

[0023] Figure 5 This is a schematic structural diagram of the second locking point tension spring of the mechanical automatic retracting door opener proposed by the present invention;

[0024] Figure 6 This is a schematic structural diagram of the second locking point rod of the mechanical automatic retracting door opener proposed in the present invention;

[0025] Figure 7 This is a schematic structural diagram of the push rod component of the mechanical automatic retracting door opener proposed in the present invention.

[0026] In the figure: 1. Shell; 2. Silent wheel; 201. Silent connecting plate; 3. Energy storage arm; 301. Energy storage shaft; 302. Tension spring buckle; 303. Tension spring member; 4. Push rod member; 4001. Push rod slot; 401. Gap adjustment screw; 402. Push rod tension spring; 403. Push rod position; 404. Delay damping; 405. Damping head; 5. First locking point push rod; 501. First locking point tension spring; 502. First tilting plate; 503. Second locking point push rod; 5031. Push plate; 504. Second locking point tension spring; 505. Second tilting plate; 506. Third locking point push rod; 507. Three-point locking spring; 508, third tilting plate; 6, spring core; 6001, spring lower shaft; 6002, spring upper shaft; 601, energy storage spring; 7, conversion rod; 701, bearing; 702, conversion shaft; 8, pry bar member; 801, pry bar shaft; 9, first locking point rod; 901, first locking point spring; 902, second locking point rod; 903, locking point torsion spring; 904, third locking point rod; 905, third locking point spring; 10, fourth locking point rod; 1001, fourth locking point spring; 1002, fourth locking point push rod; 1003, driven plate; 1004, fourth locking point tension spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0029] Example 1:

[0030] Reference Figure 1-7, a mechanical automatic retracting door opener, comprising: a shell 1; wherein the shell 1 is rotatably connected to an energy storage shaft 301; an energy storage arm 3 rotatably connected to the energy storage shaft 301; wherein the energy storage arm 3 is fixedly connected to a silent connecting plate 201 and a tension spring buckle 302, and the silent connecting plate 201 is rotatably connected to a silent wheel 2; a tension spring member 303, the two ends of which are respectively connected to the tension spring buckle 302 and the shell 1; a push rod member 4 slidably connected to the shell 1; wherein the push rod member 4 matches the silent connecting plate 201; a first lock slidably connected to the shell 1 Point rod 9; wherein, a push rod groove 4001 is provided on the push rod member 4, and the width of the push rod groove 4001 is greater than the width of the second locking point rod 902; the first locking point spring 901, both ends of which are fixedly connected to the first locking point rod 9 and the shell 1 respectively; the first locking point push rod 5 slidingly connected to the shell 1; the first locking point tension spring 501 located on the push rod member 4 on the same side as the first locking point spring 901, and both ends are fixedly connected to the first locking point push rod 5 and the first locking point rod 9 respectively; a reset assembly, which is used to push the push rod member 4 to reset when the first locking point rod 9 leaves the push rod member 4.

[0031] The reset assembly includes: a pry bar shaft 801 connected to the housing 1; a pry bar member 8 rotatably connected to the pry bar shaft 801; wherein one end of the pry bar member 8 is rotatably connected to the push rod member 4; a conversion shaft 702 and a spring lower shaft 6001 rotatably connected to the housing 1; a conversion rod 7 connected to the conversion shaft 702; wherein the conversion rod 7 is rotatably connected to the spring upper shaft 6002; a spring core 6, wherein both ends are rotatably connected to the spring upper shaft 6002 and the spring lower shaft 6001 respectively; wherein an energy storage spring 601 is sleeved on the spring core 6, and the end of the pry bar member 8 away from the push rod member 4 is slidably connected to the spring core 6, and the pry bar member 8 is in contact with the energy storage spring 601.

[0032] The diameter of the groove on the pry bar 8 that is in contact with the spring core 6 and the push rod 4 is larger than the diameter of the spring core 6. During the rotation of the pry bar 8, the rotation trajectory of the two ends of the pry bar 8 is circular. Since the diameter of the groove on the pry bar 8 is larger than the diameter of the spring core 6, the stable rotation of the pry bar 8 is facilitated.

[0033] A push rod tension spring 402 is connected to the housing 1 , and the other end of the push rod tension spring 402 is fixedly connected to the push rod member 4 to facilitate driving the push rod member 4 to reset.

[0034] The conversion rod 7 is rotatably connected to a bearing 701 , which is in contact with the energy storage arm 3 , facilitating the rotation of the energy storage arm 3 when in contact with the conversion rod 7 and controlling the rotation of the conversion rod 7 .

[0035] It also includes a first inclined plate 502 connected to the first locking point push rod 5, and the first inclined plate 502 matches the end of the conversion rod 7 away from the spring upper rotation shaft 6002.

[0036] A gap adjustment screw 401 is threadedly connected to the push rod 4, and the gap adjustment screw 401 is in contact with the silent connecting plate 201. The threaded connection of the gap adjustment screw 401 facilitates adjustment of the distance between the push rod 4 and the silent connecting plate 201.

[0037] When using the device, the housing 1 is mounted on the inner wall of the cabinet, and the silent wheel 2 is in contact with the cabinet door;

[0038] When the door needs to be opened, the cabinet door is pressed first, and the cabinet door will squeeze the silent wheel 2, and the silent wheel 2 drives the energy storage arm 3 to rotate through the silent connecting plate 201. At this time, the silent connecting plate 201 will squeeze the gap adjustment screw 401, and then the gap adjustment screw 401 can squeeze the push rod 4 downward. At this time, there is a gap between the first locking point rod 9 and the push rod groove 4001, and the push rod 4 is not stuck. Under the elastic force of the first locking point tension spring 501, the first locking point rod 9 is pulled away from the push rod 4, and the first locking point spring 901 is compressed;

[0039] When the cabinet door is released, the energy storage spring 601 pushes the lever 8 to rotate clockwise, and then the end of the lever 8 away from the energy storage spring 601 pushes the push rod 4 upward, and the lever 8 stops rotating when it rotates to the lower rotating shaft 6001 of the spring core 6;

[0040] Reference Figure 2 When the cabinet door is opened manually, the tension spring 303 drives the energy storage arm 3 to rotate together with the cabinet door. After rotating to a certain opening angle, the arc position of the energy storage arm 3 is disconnected from the bearing 701. The energy storage arm 3 is no longer stuck to the bearing 701 and the conversion rod 7. The push rod tension spring 402 pulls the push rod 4 downward. At the same time, the push rod 4 pushes the pry rod 8 to rotate counterclockwise. The pry rod 8 pushes the conversion rod 7 to rotate counterclockwise through the energy storage spring 601. When the push rod 4 slides to the maximum distance, the conversion rod 7 also rotates to a certain angle.

[0041] At this time, the end of the conversion rod 7 close to the first inclined plate 502 is located at the lower end of the first inclined plate 502, and does not squeeze the first inclined plate 502, that is, does not squeeze the first locking point push rod 5. At this time, the force of the first locking point tension spring 501 is released, and no work is done. Then, the pressure of the first locking point spring 901 is released, pushing the first locking point rod 9 into the push rod groove 4001 in the push rod member 4, thereby limiting the push rod member 4.

[0042] Reference Figure 2 When the door is closed manually, the energy storage arm 3 rotates counterclockwise, and the arc position on the energy storage arm 3 contacts the bearing 701 again, which drives the conversion rod 7 to rotate clockwise. Since the push rod 4 is now stuck by the first locking point rod 9 and cannot slide, and the pry rod 8 is also stuck by the push rod 4, the energy storage arm 3 rotates continuously to squeeze the conversion rod 7, causing the conversion rod 7 to compress the energy storage spring 601 to store energy.

[0043] After the conversion rod 7 rotates clockwise, it will push the first inclined plate 502 to slide, that is, the first locking point push rod 5 will slide, and the first locking point tension spring 501 will start to store energy to prepare for the next cabinet opening.

[0044] Example 2:

[0045] Reference Figure 1-7 , Mechanical automatic retraction door opener, Mechanical automatic retraction door opener, comprising: a shell 1; wherein the shell 1 is rotatably connected to an energy storage shaft 301; an energy storage arm 3 rotatably connected to the energy storage shaft 301; wherein the energy storage arm 3 is fixedly connected to a silent connecting plate 201 and a tension spring buckle 302, and the silent connecting plate 201 is rotatably connected to a silent wheel 2; a tension spring member 303, both ends of which are respectively connected to the tension spring buckle 302 and the shell 1; a third locking point rod 904 slidably connected to the shell 1; wherein a push rod groove 4001 is provided on the push rod member 4, and the width of the push rod groove 4001 is greater than the width of the third locking point rod 904; the third locking point spring 905, both ends of which are respectively fixedly connected to the third lock Point rod 904, on the shell 1; a second locking point push rod 503 slidably connected to the shell 1; a second locking point tension spring 504 located on the other side of the push rod member 4 away from the third locking point spring 905, and both ends are fixedly connected to the second locking point push rod 503 and the shell 1 respectively; a second inclined plate 505 connected to the second locking point push rod 503, the second inclined plate 505 matches the end of the conversion rod 7 away from the spring upper shaft 6002; wherein, the second locking point push rod 503 is fixedly connected to the end close to the second inclined plate 505 of the second locking point push rod 503, and the push plate 5031 is in contact with the third locking point rod 904; a reset assembly, used to push the push rod member 4 to reset when the first locking point rod 9 leaves the push rod member 4.

[0046] The reset assembly includes: a pry bar shaft 801 connected to the housing 1; a pry bar member 8 rotatably connected to the pry bar shaft 801; wherein one end of the pry bar member 8 is rotatably connected to the push rod member 4; a conversion shaft 702 and a spring lower shaft 6001 rotatably connected to the housing 1; a conversion rod 7 connected to the conversion shaft 702; wherein the conversion rod 7 is rotatably connected to the spring upper shaft 6002; a spring core 6, wherein both ends are rotatably connected to the spring upper shaft 6002 and the spring lower shaft 6001 respectively; wherein an energy storage spring 601 is sleeved on the spring core 6, and the end of the pry bar member 8 away from the push rod member 4 is slidably connected to the spring core 6, and the pry bar member 8 is in contact with the energy storage spring 601.

[0047] The diameter of the groove on the pry bar 8 that is in contact with the spring core 6 and the push rod 4 is larger than the diameter of the spring core 6. During the rotation of the pry bar 8, the rotation trajectory of the two ends of the pry bar 8 is circular. Since the diameter of the groove on the pry bar 8 is larger than the diameter of the spring core 6, the stable rotation of the pry bar 8 is facilitated.

[0048] A push rod tension spring 402 is connected to the housing 1 , and the other end of the push rod tension spring 402 is fixedly connected to the push rod member 4 to facilitate driving the push rod member 4 to reset.

[0049] The conversion rod 7 is rotatably connected to a bearing 701 , which is in contact with the energy storage arm 3 , facilitating the rotation of the energy storage arm 3 when in contact with the conversion rod 7 and controlling the rotation of the conversion rod 7 .

[0050] A gap adjustment screw 401 is threadedly connected to the push rod 4, and the gap adjustment screw 401 is in contact with the silent connecting plate 201. The threaded connection of the gap adjustment screw 401 facilitates adjustment of the distance between the push rod 4 and the silent connecting plate 201.

[0051] When using the device, the housing 1 is mounted on the inner wall of the cabinet, and the silent wheel 2 is in contact with the cabinet door;

[0052] When the door needs to be opened, press the cabinet door first, the cabinet door will squeeze the silent wheel 2, and the silent wheel 2 drives the energy storage arm 3 to rotate through the silent connecting plate 201. At this time, the silent connecting plate 201 will squeeze the gap adjustment screw 401, and then the gap adjustment screw 401 can squeeze the push rod 4 to move downward. At this time, there is a gap between the third locking point rod 904 and the push rod groove 4001, and the push rod 4 is not stuck. Under the elastic force of the second locking point tension spring 504, the second locking point push rod 503 is pushed to slide, and then the second locking point push rod 503 will push the second locking point rod 902 away from the push rod 4 through the push plate 5031, and the third locking point spring 905 is compressed;

[0053] When the cabinet door is released, the energy storage spring 601 pushes the lever 8 to rotate clockwise, and then the end of the lever 8 away from the energy storage spring 601 pushes the push rod 4 upward, and the lever 8 stops rotating when it rotates to the lower rotating shaft 6001 of the spring core 6;

[0054] Reference Figure 5 When the cabinet door is opened manually, the tension spring 303 drives the energy storage arm 3 to contact the cabinet door and rotate together. After rotating to a certain opening angle, the arc position of the energy storage arm 3 is disconnected from the bearing 701, and the push rod tension spring 402 pulls the push rod 4 downward. At the same time, the push rod 4 pushes the pry rod 8 to rotate counterclockwise. The pry rod 8 pushes the conversion rod 7 to rotate counterclockwise through the energy storage spring 601. When the push rod 4 slides to the maximum distance, the conversion rod 7 also rotates to a certain angle.

[0055] At this time, the end of the conversion rod 7 close to the second inclined plate 505 is located at the upper end of the second inclined plate 505. When the conversion rod 7 rotates downward, it squeezes the second inclined plate 505, that is, squeezes the second locking point push rod 503. At this time, the second locking point tension spring 504 is stretched, so that the second locking point push rod 503 and the push plate 5031 do not press against the third locking point rod 904. Then, the pressure of the third locking point spring 905 is released, pushing the third locking point rod 904 into the push rod groove 4001 in the push rod member 4, thereby limiting the push rod member 4.

[0056] Reference Figure 5 When the door is closed manually, the energy storage arm 3 rotates counterclockwise, and the arc position on the energy storage arm 3 contacts the bearing 701 again, which drives the conversion rod 7 to rotate clockwise. Since the push rod 4 is now stuck by the third locking point rod 904 and cannot slide, and the pry rod 8 is also stuck by the push rod 4, the energy storage arm 3 rotates continuously to squeeze the conversion rod 7, causing the conversion rod 7 to compress the energy storage spring 601 to store energy.

[0057] After the conversion rod 7 rotates clockwise, the second inclined plate 505 is not squeezed by the conversion rod 7. Since the third locking point rod 904 is stuck, the second locking point tension spring 504 starts to store energy, preparing for the next cabinet opening.

[0058] Example 3:

[0059] Reference Figure 1-7 ; A mechanical automatic retracting door opener comprises: a housing 1; wherein the housing 1 is rotatably connected to an energy storage shaft 301; an energy storage arm 3 rotatably connected to the energy storage shaft 301; wherein the energy storage arm 3 is fixedly connected to a silent connecting plate 201 and a tension spring buckle 302, and the silent connecting plate 201 is rotatably connected to a silent wheel 2; a tension spring member 303, the two ends of which are respectively connected to the tension spring buckle 302 and the housing 1; a second locking point rod 902 rotatably connected to the housing 1; wherein a push rod groove 4001 is provided on the push rod member 4, and the width of the push rod groove 4001 is greater than the second The width of the locking point rod 902; the locking point torsion spring 903, the two ends of which are respectively fixedly connected to the second locking point rod 902 and the shell 1; the third locking point push rod 506 slidably connected to the shell 1; the third locking point tension spring 507, the two ends of which are respectively fixedly connected to the third locking point push rod 506 and the second locking point rod 902; the third inclined plate 508 connected to the third locking point push rod 506, the third inclined plate 508 matches the end of the conversion rod 7 away from the spring upper rotation axis 6002; the reset assembly, which is used to push the push rod member 4 to reset when the first locking point rod 9 leaves the push rod member 4.

[0060] The reset assembly includes: a pry bar shaft 801 connected to the housing 1; a pry bar member 8 rotatably connected to the pry bar shaft 801; wherein one end of the pry bar member 8 is rotatably connected to the push rod member 4; a conversion shaft 702 and a spring lower shaft 6001 rotatably connected to the housing 1; a conversion rod 7 connected to the conversion shaft 702; wherein the conversion rod 7 is rotatably connected to the spring upper shaft 6002; a spring core 6, wherein both ends are rotatably connected to the spring upper shaft 6002 and the spring lower shaft 6001 respectively; wherein an energy storage spring 601 is sleeved on the spring core 6, and the end of the pry bar member 8 away from the push rod member 4 is slidably connected to the spring core 6, and the pry bar member 8 is in contact with the energy storage spring 601.

[0061] The diameter of the groove on the pry bar 8 that is in contact with the spring core 6 and the push rod 4 is larger than the diameter of the spring core 6. During the rotation of the pry bar 8, the rotation trajectory of the two ends of the pry bar 8 is circular. Since the diameter of the groove on the pry bar 8 is larger than the diameter of the spring core 6, the stable rotation of the pry bar 8 is facilitated.

[0062] A push rod tension spring 402 is connected to the housing 1 , and the other end of the push rod tension spring 402 is fixedly connected to the push rod member 4 to facilitate driving the push rod member 4 to reset.

[0063] The conversion rod 7 is rotatably connected to a bearing 701 , which is in contact with the energy storage arm 3 , facilitating the rotation of the energy storage arm 3 when in contact with the conversion rod 7 and controlling the rotation of the conversion rod 7 .

[0064] A gap adjustment screw 401 is threadedly connected to the push rod 4, and the gap adjustment screw 401 is in contact with the silent connecting plate 201. The threaded connection of the gap adjustment screw 401 facilitates adjustment of the distance between the push rod 4 and the silent connecting plate 201.

[0065] When using the device, the housing 1 is mounted on the inner wall of the cabinet, and the silent wheel 2 is in contact with the cabinet door;

[0066] When the door needs to be opened, the cabinet door is pressed first, and the cabinet door will squeeze the silent wheel 2, and the silent wheel 2 drives the energy storage arm 3 to rotate through the silent connecting plate 201. At this time, the silent connecting plate 201 squeezes the gap adjustment screw 401, and then the gap adjustment screw 401 can squeeze the push rod 4 downward. At this time, there is a gap between the second locking point rod 902 and the push rod groove 4001, and the push rod 4 is not stuck. Under the elastic force of the third locking point tension spring 507, the second locking point rod 902 is pulled away from the push rod 4;

[0067] When the cabinet door is released, the energy storage spring 601 pushes the lever 8 to rotate clockwise, and then the end of the lever 8 away from the energy storage spring 601 pushes the push rod 4 upward, and the lever 8 stops rotating when it rotates to the lower rotating shaft 6001 of the spring core 6;

[0068] Reference Figure 6 When the cabinet door is opened manually, the tension spring 303 drives the energy storage arm 3 to contact the cabinet door and rotate together. After rotating to a certain opening angle, the arc position of the energy storage arm 3 is disconnected from the bearing 701, and the push rod tension spring 402 pulls the push rod 4 downward. At the same time, the push rod 4 pushes the pry rod 8 to rotate counterclockwise. The pry rod 8 pushes the conversion rod 7 to rotate counterclockwise through the energy storage spring 601. When the push rod 4 slides to the maximum distance, the conversion rod 7 also rotates to a certain angle.

[0069] At this time, the end of the conversion rod 7 close to the third inclined plate 508 is located at the lower end of the third inclined plate 508, and does not squeeze the third inclined plate 508, that is, does not squeeze the third locking point push rod 506. At this time, the force of the third locking point tension spring 507 is released, and no work is done. Then, the pressure of the locking point torsion spring 903 is released, pushing the second locking point rod 902 into the push rod groove 4001 in the push rod member 4, thereby limiting the push rod member 4.

[0070] Reference Figure 6 When the door is closed manually, the energy storage arm 3 rotates counterclockwise, and the arc position on the energy storage arm 3 contacts the bearing 701 again, which drives the conversion rod 7 to rotate clockwise. Since the push rod 4 is now stuck by the second locking point rod 902 and cannot slide, and the pry rod 8 is also stuck by the push rod 4, the energy storage arm 3 rotates continuously to squeeze the conversion rod 7, causing the conversion rod 7 to compress the energy storage spring 601 to store energy.

[0071] After the conversion rod 7 rotates clockwise, it will push the third inclined plate 508 to slide, that is, the third locking point push rod 506 will slide, and the third locking point tension spring 507 will start to store energy to prepare for the next cabinet opening.

[0072] Example 4:

[0073] Reference Figure 1-7, a mechanical automatic retracting door opener comprises: a shell 1; wherein the shell 1 is rotatably connected to an energy storage shaft 301; an energy storage arm 3 rotatably connected to the energy storage shaft 301; wherein the energy storage arm 3 is fixedly connected to a silent connecting plate 201 and a tension spring buckle 302, and the silent connecting plate 201 is rotatably connected to a silent wheel 2; a tension spring member 303, both ends of which are respectively connected to the tension spring buckle 302 and the shell 1; a push rod member 4 slidably connected to the shell 1; wherein the push rod member 4 matches the silent connecting plate 201; a second locking point rod 902 rotatably connected to the shell 1; wherein the push rod member 4 is provided with a push rod groove 4001, and the width of the push rod groove 4001 is greater than the width of the second locking point rod 902; a locking point torsion spring 903, both ends of which are respectively fixedly connected to The second locking point rod 902 is on the shell 1; the fourth locking point rod 10 is slidably connected to the shell 1; wherein a push rod groove 4001 is provided on the push rod member 4, and the width of the push rod groove 4001 is greater than the width of the fourth locking point rod 10; the fourth locking point spring 1001, both ends of which are fixedly connected to the fourth locking point rod 10 and the shell 1 respectively; the fourth locking point push rod 1002 is slidably connected to the shell 1; the fourth locking point tension spring 1004, both ends of which are fixedly connected to the fourth locking point push rod 1002 and the shell 1 respectively; the driven plate 1003 connected to the fourth locking point push rod 1002, the driven plate 1003 is matched with the end of the conversion rod 7 away from the spring upper rotating shaft 6002; the reset assembly is used to push the push rod member 4 to reset when the first locking point rod 9 leaves the push rod member 4.

[0074] The reset assembly includes: a pry bar shaft 801 connected to the housing 1; a pry bar member 8 rotatably connected to the pry bar shaft 801; wherein one end of the pry bar member 8 is rotatably connected to the push rod member 4; a conversion shaft 702 and a spring lower shaft 6001 rotatably connected to the housing 1; a conversion rod 7 connected to the conversion shaft 702; wherein the conversion rod 7 is rotatably connected to the spring upper shaft 6002; a spring core 6, wherein both ends are rotatably connected to the spring upper shaft 6002 and the spring lower shaft 6001 respectively; wherein an energy storage spring 601 is sleeved on the spring core 6, and the end of the pry bar member 8 away from the push rod member 4 is slidably connected to the spring core 6, and the pry bar member 8 is in contact with the energy storage spring 601.

[0075] The diameter of the groove on the pry bar 8 that is in contact with the spring core 6 and the push rod 4 is larger than the diameter of the spring core 6. During the rotation of the pry bar 8, the rotation trajectory of the two ends of the pry bar 8 is circular. Since the diameter of the groove on the pry bar 8 is larger than the diameter of the spring core 6, the stable rotation of the pry bar 8 is facilitated.

[0076] A push rod tension spring 402 is connected to the housing 1 , and the other end of the push rod tension spring 402 is fixedly connected to the push rod member 4 to facilitate driving the push rod member 4 to reset.

[0077] The conversion rod 7 is rotatably connected to a bearing 701 , which is in contact with the energy storage arm 3 , facilitating the rotation of the energy storage arm 3 when in contact with the conversion rod 7 and controlling the rotation of the conversion rod 7 .

[0078] The push rod 4 is threadedly connected with a gap adjustment screw 401, which is in contact with the mute connecting plate 201. The gap adjustment screw 401 is threadedly connected to the push rod 4, so that the distance between the push rod 4 and the mute connecting plate 201 can be adjusted.

[0079] When using the device, the housing 1 is mounted on the inner wall of the cabinet, and the silent wheel 2 is in contact with the cabinet door;

[0080] When the door needs to be opened, press the cabinet door first, the cabinet door will squeeze the silent wheel 2, and the silent wheel 2 drives the energy storage arm 3 to rotate through the silent connecting plate 201, and at this time the silent connecting plate 201 will squeeze the gap adjusting screw 401, and then the gap adjusting screw 401 can squeeze the push rod 4 to move down. At this time, there is a gap between the fourth locking point push rod 1002 and the push rod groove 4001, and the push rod 4 is not stuck. At this time, the fourth locking point push rod 1002 moves upward under the elastic force of the fourth locking point tension spring 1004. At this time, the inclined surface of the upper end of the fourth locking point push rod 1002 is in contact with the inclined surface of the lower end of the fourth locking point rod 10. Under the action of the inclined surface, the fourth locking point push rod 1002 pushes the fourth locking point rod 10 to leave the push rod 4, and the fourth locking point spring 1001 is compressed;

[0081] When the cabinet door is released, the energy storage spring 601 pushes the lever 8 to rotate clockwise, and then the end of the lever 8 away from the energy storage spring 601 pushes the push rod 4 upward, and the lever 8 stops rotating when it rotates to the lower rotating shaft 6001 of the spring core 6;

[0082] Reference Figure 7 When the cabinet door is opened manually, the tension spring 303 drives the energy storage arm 3 to contact the cabinet door and rotate together. After rotating to a certain opening angle, the arc position of the energy storage arm 3 is disconnected from the bearing 701, and the push rod tension spring 402 pulls the push rod 4 downward. At the same time, the push rod 4 pushes the pry rod 8 to rotate counterclockwise. The pry rod 8 pushes the conversion rod 7 to rotate counterclockwise through the energy storage spring 601. When the push rod 4 slides to the maximum distance, the conversion rod 7 also rotates to a certain angle.

[0083] At this time, the end of the conversion rod 7 close to the driven plate 1003 pushes the driven plate 1003 downward, and the driven plate 1003 drives the fourth locking point push rod 1002 downward without squeezing the fourth locking point rod 10. Under the elastic force of the fourth locking point spring 1001, the fourth locking point rod 10 slides and engages in the push rod groove 4001 in the push rod member 4, thereby limiting the push rod member 4.

[0084] Reference Figure 7When the door is closed manually, the energy storage arm 3 rotates counterclockwise, and the arc position on the energy storage arm 3 contacts the bearing 701 again, which drives the conversion rod 7 to rotate clockwise. Since the push rod 4 is now stuck by the fourth locking point rod 10 and cannot move upward, and the pry rod 8 is also stuck by the push rod 4, the energy storage arm 3 rotates continuously to squeeze the conversion rod 7, causing the conversion rod 7 to compress the energy storage spring 601 to store energy.

[0085] Example 5:

[0086] Reference Figure 1-7 The mechanical automatic retracting door opener is basically the same as that of Example 4. Furthermore, a time delay damper 404 is fixedly connected to the housing 1, a damping head 405 is fixedly connected to the telescopic end of the time delay damper 404, and an arc-shaped push rod position 403 is provided on the push rod member 4, and the damping head 405 is in contact with the push rod position 403;

[0087] When the push rod 4 moves upward, it is squeezed by the damping head 405 and moves upward at a slower speed to delay the upward speed of the push rod 4. When the push rod position 403 moves upward and leaves the damping head 405, the upward speed of the push rod 4 is not limited and the push rod 4 is accelerated.

[0088] The present invention is composed of a connecting and disassembling structure, and the cabinet door can be automatically opened by pressing it once. When closing the door, the door opener can be closed without manual pressing again, and the operation is simple.

[0089] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. Mechanical automatic retracting door opener, characterized in that: include: Housing (1); Wherein, an energy storage shaft (301) is rotatably connected to the housing (1); Rotating the energy storage arm (3) connected to the energy storage shaft (301); Wherein, a silent connection plate (201) and a tension spring buckle (302) are fixedly connected to the energy storage arm (3); A tension spring member (303), with two ends respectively connected to the tension spring buckle (302) and the housing (1); A push rod member (4) slidably connected to the housing (1); Wherein, the push rod member (4) matches the silent connecting plate (201); A limiting component, arranged on the housing (1) and used to limit the sliding of the push rod (4); a reset assembly, used for pushing the push rod member (4) to reset when the limiting assembly leaves the push rod member (4); The push rod (4) is threadedly connected with a gap adjustment screw (401), and the gap adjustment screw (401) is in contact with the silent connection plate (201); The reset component includes: a pry bar rotating shaft (801) connected to the housing (1); Rotating the pry bar member (8) connected to the pry bar rotating shaft (801); Wherein, one end of the pry rod (8) is rotatably connected to the push rod (4); Rotating the conversion shaft (702) and the spring lower shaft (6001) connected to the housing (1); a conversion rod (7) connected to the conversion shaft (702); Wherein, the conversion rod (7) is rotatably connected to a spring upper rotating shaft (6002); The spring core (6) has two ends respectively connected to the upper spring shaft (6002) and the lower spring shaft (6001) for rotation; The spring core (6) is sleeved with an energy storage spring (601), and one end of the pry bar (8) away from the push rod (4) is slidably connected to the spring core (6), and the pry bar (8) is in contact with the energy storage spring (601); A push rod tension spring (402) is connected to the housing (1), and the other end of the push rod tension spring (402) is fixedly connected to the push rod member (4); A bearing (701) is rotatably connected to the conversion rod (7), and the bearing (701) is in contact with the energy storage arm (3).

2. The mechanical automatic retracting door opener according to claim 1, characterized in that: A silent wheel (2) is rotatably connected to the silent connecting plate (201).

3. The mechanical automatic retracting door opener according to claim 1, characterized in that: The diameter of the groove on the pry bar (8) that contacts the spring core (6) and the push rod (4) is greater than the diameter of the spring core (6).

4. The mechanical automatic retracting door opener according to claim 1, characterized in that: The restriction components include: a first locking point rod (9) slidably connected to the housing (1); Wherein, the push rod member (4) is provided with a push rod groove (4001), and the width of the push rod groove (4001) is greater than the width of the first locking point rod (9); A first locking point spring (901), both ends of which are fixedly connected to the first locking point rod (9) and the housing (1); a first locking point push rod (5) slidably connected to the housing (1); A first locking point tension spring (501) is located on the same side as the first locking point spring (901) relative to the push rod (4), and its two ends are fixedly connected to the first locking point push rod (5) and the first locking point rod (9) respectively; A first inclined plate (502) is connected to the first locking point push rod (5), and the first inclined plate (502) matches the end of the conversion rod (7) away from the spring upper rotating shaft (6002).

5. The mechanical automatic retracting door opener according to claim 1, characterized in that: The restriction components include: a third locking point rod (904) slidably connected to the housing (1); Wherein, the push rod member (4) is provided with a push rod groove (4001), and the width of the push rod groove (4001) is greater than the width of the third locking point rod (904); A third locking point spring (905), both ends of which are fixedly connected to the third locking point rod (904) and the housing (1); a second locking point push rod (503) slidably connected to the housing (1); A second locking point tension spring (504) is located on the other side of the push rod (4) away from the third locking point spring (905), with both ends fixedly connected to the second locking point push rod (503) and the housing (1); a second inclined plate (505) connected to the second locking point push rod (503), wherein the second inclined plate (505) matches an end of the conversion rod (7) away from the spring upper rotating shaft (6002); One end of the second locking point push rod (503) close to the second inclined plate (505) is fixedly connected to a push plate (5031), and the push plate (5031) is in contact with the third locking point rod (904).

6. The mechanical automatic retracting door opener according to claim 1, characterized in that: The restriction components include: Rotating a second locking point rod (902) connected to the housing (1); Wherein, the push rod member (4) is provided with a push rod groove (4001), and the width of the push rod groove (4001) is greater than the width of the second locking point rod (902); A locking point torsion spring (903), with both ends fixedly connected to the second locking point rod (902) and the housing (1); a third locking point push rod (506) slidably connected to the housing (1); A third locking point tension spring (507), both ends of which are fixedly connected to the third locking point push rod (506) and the second locking point rod (902); A third inclined plate (508) is connected to the third locking point push rod (506), and the third inclined plate (508) matches the end of the conversion rod (7) away from the spring upper rotating shaft (6002).

7. The mechanical automatic retracting door opener according to claim 1, characterized in that: The restriction components include: a fourth locking point rod (10) slidably connected to the housing (1); Wherein, the push rod member (4) is provided with a push rod groove (4001), and the width of the push rod groove (4001) is greater than the width of the fourth locking point rod (10); A fourth locking point spring (1001), both ends of which are fixedly connected to the fourth locking point rod (10) and the housing (1); a fourth locking point push rod (1002) slidably connected to the housing (1); A fourth locking point tension spring (1004), with both ends fixedly connected to the fourth locking point push rod (1002) and the housing (1); A driven plate (1003) connected to the fourth locking point push rod (1002), the driven plate (1003) matches the end of the conversion rod (7) away from the spring upper rotating shaft (6002).

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