Automatic door bouncing device

Abstract

The utility model provides an automatic door bouncing device which comprises a panel, a reset piece, an ejector rod, a protection piece, a driving assembly, a shell and a driving piece, the driving piece is arranged on the shell, and the shell is fixed to a door leaf through the panel; the driving assembly is arranged in the shell, and the driving assembly is connected with the driving piece so as to transmit power output by the driving piece; the ejector rod is arranged in a limiting groove in the shell in a sliding mode, wherein the limiting groove is provided with an opening in one end, and the ejector rod is connected with the driving assembly so as to be driven by the driving assembly to stretch out of or retract into the limiting groove through the opening. An ejector rod is arranged in a limiting groove with an opening in one end in the shell in a sliding mode, and the ejector rod is connected with the driving assembly so as to be driven by the driving assembly to stretch out of or retract into the limiting groove through the opening. When the door leaf is in a closed state, the ejector rod retracts into the limiting groove, and at the moment, the door body and the hinge are not affected by any force. When the door needs to be opened, the ejector rod is driven by the driving assembly to stretch out of the limiting groove and push the door body to achieve the door opening action.

Description

Technical Field

[0001] The utility model relates to the technical field of door openers, in particular to an automatic door opening device. Background Art

[0002] At present, intelligent products have penetrated into people's lives, and door unlocking has evolved from unlocking with keys to unlocking with smart handles by entering passwords, fingerprints, faces, etc., but it has not been able to get rid of the action of opening the door with hands.

[0003] Mechanical door springs on the market have problems such as the door cannot be opened due to too little force or the door can be opened due to too much force but after closing the door, the mechanical door springs will be pressed against the door frame for a long time, which may cause abnormal noises and damage to the hinges on the door body.

[0004] Therefore need to develop a kind of door opening mechanism, to meet the requirement of above-mentioned door opening or door closing. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is that the mechanical door springs in the prior art have problems such as the force is too small to open the door or the force is too large to open the door, but after closing the door, the mechanical door springs are pressed against the door frame for a long time, which may easily cause abnormal noise and damage to the hinges on the door body.

[0006] To this end, the utility model provides an automatic door ejector, comprising:

[0007] A housing assembly comprises a housing and a panel connected to each other, wherein a driving member is provided on the housing, and the housing assembly is fixed to the door leaf via the panel;

[0008] A driving assembly is disposed inside the housing, and the driving assembly is connected to the driving member to transmit power output by the driving member;

[0009] A push rod is slidably arranged in a limiting groove with an opening at one end inside the shell, and the push rod is connected to the driving assembly to be driven by the driving assembly to extend out through the opening or retract into the limiting groove.

[0010] Optionally, the automatic door ejector further includes:

[0011] The panel is arranged at one side of the opening of the limiting groove, and a through hole aligned with the opening of the limiting groove is arranged on the panel;

[0012] The end of the push rod away from the housing is inserted into the through hole. When the push rod is driven by the driving assembly to move toward the inside of the limiting groove, the push rod is subjected to a reset bias force that assists its movement.

[0013] Optionally, the automatic door ejector further comprises a reset member, which is arranged between the panel and the push rod, and the reset bias force is provided by the reset member.

[0014] Optionally, a boss is provided on the push rod, and one end of the reset member sleeved on the push rod abuts against the boss.

[0015] Optionally, a limiting groove is provided on the groove wall of the limiting groove, and a limiting protrusion is provided on the push rod and is slidably arranged in the limiting groove.

[0016] Optionally, the length of the limiting groove is arranged along the moving direction of the push rod.

[0017] Optionally, the automatic door opening device further comprises a protective member disposed between the push rod and the driving assembly, wherein the protective member is configured to be elastically deformed by being squeezed by the push rod and the driving assembly.

[0018] Optionally, the protective member is a spring arranged between the push rod and the driving assembly.

[0019] Optionally, the driving assembly comprises:

[0020] An output gear connected to the driving member and rotatably disposed in the housing;

[0021] A secondary transmission gear, comprising a first gear surface and a second gear surface coaxially fixedly arranged with the first gear surface, wherein the first gear surface is meshed with the output gear;

[0022] A gear condition, slidably disposed in the limiting groove and connected to the push rod, the gear condition being provided with a rack, the rack being meshed with the second gear surface;

[0023] Wherein, the gear condition is configured to be driven by the secondary transmission gear to slide back and forth in the limiting groove.

[0024] Optionally, the automatic door ejector further includes:

[0025] A middle shaft, passing through the secondary transmission gear and fixed thereto;

[0026] A bearing member is arranged between the end of the center shaft and the housing.

[0027] The automatic door ejector provided by the utility model has the following advantages:

[0028] 1. The utility model provides an automatic door opening device, including a shell, a driving assembly and a push rod, wherein a driving member is provided on the shell, and the shell is suitable for being fixed to a door leaf; the driving assembly is arranged inside the shell, and the driving assembly is connected to the driving member to transmit the power output by the driving member; the push rod is slidably arranged in a limiting groove with an opening at one end inside the shell, and the push rod is connected to the driving assembly to be driven by the driving assembly to extend through the opening or retract into the limiting groove.

[0029] The automatic door ejector of this structure is provided with a push rod which is slidably arranged in a limiting groove with an opening at one end inside the housing, and the push rod is connected to the driving assembly so as to be driven by the driving assembly to extend through the opening or retract into the limiting groove. When the door leaf is in a closed state, the push rod is retracted into the limiting groove, and at this time, the door body and the hinge are not subjected to any force. When the door needs to be opened, the push rod is driven by the driving assembly to extend out of the limiting groove and push the door body to realize the action of opening the door.

[0030] 2. The utility model provides an automatic door ejector, further comprising a panel and a reset member, wherein the panel is connected to the housing and arranged at one side of the limit slot opening, and the panel is provided with a through hole aligned with the limit slot opening; the end of the ejector rod away from the housing is inserted into the through hole, and when the ejector rod is driven by the driving assembly to move toward the inside of the limit slot, the ejector rod is subjected to a reset bias force to assist its movement. The reset member is arranged between the panel and the ejector rod, and the reset bias force is provided by the reset member.

[0031] In the automatic door ejector of this structure, the reset member is a spring. When installed, the panel is fixedly connected to the shell. In order to allow the push rod to extend, a through hole is opened on the panel and the through hole is aligned with the opening of the limit slot. The reset member is arranged between the panel and the push rod. When the push rod is driven by the driving assembly to move outside the limit slot, the reset member is compressed and elastically deformed. When the push rod is driven by the driving assembly to move inside the limit slot, the reset member will restore the deformation and apply a force to the push rod to move in the direction of the inside of the limit slot.

[0032] 3. The utility model provides an automatic door opening device, further comprising a protective member, which is arranged between the push rod and the driving assembly, and the protective member is configured to be elastically deformed by being squeezed by the push rod and the driving assembly.

[0033] The automatic door ejector of this structure has a protective member disposed between the push rod and the driving assembly, and the protective member can be elastically deformed by being squeezed by the push rod and the driving assembly. When the automatic door ejector cannot move normally due to other factors such as resistance to door opening or sudden power failure during door opening, the protective member can compress and protect the driving member and accessories such as the driving assembly to avoid the situation where the door cannot be closed or forced closing of the door squeezes the accessories and causes damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 An exploded view of the automatic door ejector provided in an embodiment of the utility model;

[0036] Figure 2 It is a structural schematic diagram of the automatic door ejector provided in an embodiment of the utility model in a door closing state;

[0037] Figure 3 It is a structural schematic diagram of the automatic door ejector provided in an embodiment of the utility model in an open door state;

[0038] Description of reference numerals:

[0039] 1- Panel;

[0040] 2-Reset piece;

[0041] 3- ejector rod;

[0042] 4- Protective parts;

[0043] 5-tooth condition;

[0044] 6-Secondary transmission gear;

[0045] 7-central axis;

[0046] 8-Output gear;

[0047] 9-bearing parts;

[0048] 10- housing;

[0049] 11- Driving member. DETAILED DESCRIPTION

[0050] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0052] Example

[0053] This embodiment provides an automatic door opening device, such as Figures 1 to 3 As shown, it includes a shell assembly, a panel 1, a reset member 2, a top rod 3, a protective member 4, a driving assembly, a shell 10 and a driving member 11. The shell assembly includes a panel 1 and a shell 10 that are connected to each other. The reset member 2, the top rod 3, the protective member 4 and the driving assembly are integrated inside the shell 10. The shell 10 is fixedly connected to the door leaf through the panel 1, and the driving member 11 is fixed on the shell 10.

[0054] In this embodiment, the driving assembly is connected to the driving member 11 to transmit the power output by the driving member 11. The driving assembly includes an output gear 8, a secondary transmission gear 6, a gear conditioner 5, a central shaft 7 and a bearing member 9. The output gear 8 is connected to the driving member 11 and is rotatably arranged in the housing 10. The secondary transmission gear 6 includes a first gear surface and a second gear surface coaxially fixedly arranged with the first gear surface. The first gear surface is meshed with the output gear 8. The gear conditioner 5 is slidably arranged in a limiting groove of the housing 10 and connected to the top rod 3. A rack is provided on the gear conditioner 5, and the rack is meshed with the second gear surface; wherein the rack conditioner 5 is configured to be driven by the secondary transmission gear 6 and slide back and forth in the limiting groove. The driving member 11 is preferably a motor.

[0055] like Figure 1 As shown, the output shaft of the driving member 11 passes through the upper cover of the housing 10 and is arranged in the output gear 8 and is fixedly connected to the output gear 8. The first gear surface of the secondary transmission gear 6 is arranged in parallel with the output gear 8 and the two are meshed with each other. The middle part of the secondary transmission gear 6 passes through the central axis 7, and the two ends of the central axis 7 are rotatably installed in the housing 10. A bearing member 9 is arranged between the end of the central axis 7 and the housing 10. Therefore, when the driving member 11 is started to drive the output gear 8 to rotate, the output gear 8 can drive the secondary transmission gear 6 to rotate. The first gear surface and the second gear surface in the secondary transmission gear 6 are coaxially fixed, and in this embodiment, the diameter of the first gear surface is larger than the second gear surface, and the second gear surface can rotate synchronously when the first gear surface rotates.

[0056] like Figure 1 As shown, a rectangular through groove is provided inside the rack member 5, and a rack is provided on the groove wall in the length direction of the rectangular through groove, and the rack is meshed with the second gear surface of the secondary transmission gear 6. It can be understood that when the secondary transmission gear 6 rotates, through the cooperation between the second gear surface and the rack, the secondary transmission gear 6 can drive the gear member to slide in the limiting groove of the housing 10.

[0057] As an alternative, the rack member 5 may not be provided with the rectangular through groove, and the rack is directly arranged on the side of the rack member 5 and meshes with the second gear surface of the secondary transmission gear 6.

[0058] In this embodiment, the push rod 3 is slidably disposed in a limiting groove with an opening at one end inside the housing 10, and the push rod 3 is connected to the driving assembly so as to be driven by the driving assembly to extend through the opening or retract into the limiting groove.

[0059] like Figure 1 As shown, the left end of the limiting groove inside the shell 10 is opened, and the push rod 3 is inserted into the shell 10 through the opening. When in use, the push rod 3 is connected to the gear condition 5 and driven by the gear condition 5, so that the push rod 3 can be controlled to extend or retract into the shell 10.

[0060] Furthermore, in order to stabilize the moving track of the push rod 3, in this embodiment, a limiting groove is provided on the wall of the limiting groove, and a limiting protrusion slidably arranged in the limiting groove is provided on the push rod 3. The length of the limiting groove is set along the moving direction of the push rod 3, thereby being able to limit the moving track of the push rod 3.

[0061] In this embodiment, the protective member 4 is disposed between the push rod 3 and the driving assembly, and the protective member 4 is configured to be elastically deformed by being squeezed by the push rod 3 and the driving assembly. Preferably, the protective member 4 is a spring disposed between the push rod 3 and the driving assembly.

[0062] like Figure 1 As shown, the ends of the push rod 3 and the gear condition 5 close to the protective member 4 are both provided with columnar protrusions, and the two ends of the protective member 4 (spring) are respectively sleeved on the protrusions of the push rod 3 and the gear condition 5 and fixed to the push rod 3 and the gear condition 5.

[0063] By arranging a protective member 4 between the top rod 3 and the driving assembly, and the protective member 4 can be elastically deformed by being squeezed by the top rod 3 and the driving assembly, when the automatic door ejector cannot move normally due to other factors such as resistance to door opening or sudden power failure during door opening, the protective member 4 can compress and protect the driving member 11 and accessories such as the driving assembly to avoid the situation where the door cannot be closed or forced closing of the door squeezes the accessories and causes damage.

[0064] In this embodiment, the panel 1 is fixedly connected to the housing 10 and is disposed on one side of the opening of the limit slot. The panel 1 is provided with a through hole aligned with the opening of the limit slot. The end of the push rod 3 away from the housing 10 is inserted into the through hole. When the push rod 3 is driven by the driving assembly to move into the limit slot, the push rod 3 is subjected to a reset bias force to assist its movement. The reset member 2 is disposed between the panel 1 and the push rod 3, and the reset bias force is provided by the reset member 2.

[0065] like Figure 1 As shown, the reset member 2 is a spring. When installed, the panel 1 is fixedly connected to the shell 10. In order to allow the push rod 3 to extend, a through hole is opened on the panel 1 and the through hole is aligned with the opening of the limit groove. The reset member 2 is arranged between the panel 1 and the push rod 3. When the push rod 3 is driven by the driving assembly to move outside the limit groove, the reset member 2 is compressed and elastically deformed. When the push rod 3 is driven by the driving assembly to move inside the limit groove, the reset member 2 will restore the deformation and apply a force to the push rod 3 to move in the direction of the inside of the limit groove.

[0066] Specifically, Figure 1 As shown, in order to facilitate the installation and positioning of the reset member 2, a boss is provided on the push rod 3, and one end of the reset member 2 sleeved on the push rod 3 abuts against the boss.

[0067] The automatic door ejector provided in this embodiment has the following working process:

[0068] Figure 2 It is a schematic diagram of the structure of the automatic door ejector in the closed state. Figure 2 As shown, when the automatic door opener is in the closed state, the end of the push rod 3 slightly protrudes out of the panel 1 and is in the ready-to-open state. At this time, the door body and the hinge are not subjected to any force.

[0069] Figure 3 It is a structural diagram of the automatic door opener in the door opening state. When the door needs to be opened, the driving member 11 starts to drive the output gear 8 to rotate, and the output gear 8 drives the secondary transmission gear 6 to rotate. The characteristics of the gear rack are used to transmit the torque of the secondary transmission gear 6 to the gear condition 5 and convert it into a linear extension thrust or pull. When the gear condition 5 is pushed forward by the force, the force will be transmitted to the protective member 4. After the protective member 4 transmits the force to the push rod 3, the push rod 3 extends out to push the door body to open the door. When closing the door, the driving member 11 reverses the gear racks at all levels to move in the opposite direction, and the gear condition 5, the secondary transmission gear 6 and the output gear 8 are reset. The protective member 4 and the push rod 3 are rebounded to their original positions by the reset member 2.

[0070] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An automatic door opening device, characterized in that: include: A housing assembly comprises a housing (10) and a panel (1) connected to each other, wherein a driving member (11) is provided on the housing (10), and the housing assembly is fixed to a door leaf via the panel (1); A drive assembly is disposed inside the housing (10), and the drive assembly is connected to the drive member (11) to transmit power output by the drive member (11); A push rod (3) is slidably arranged in a limiting groove with an opening at one end inside the housing (10); the push rod (3) is connected to the driving assembly so as to be driven by the driving assembly to extend through the opening or retract into the limiting groove.

2. The automatic door ejector according to claim 1, characterized in that: The panel (1) is arranged on one side of the opening of the limiting groove, and the panel (1) is provided with a through hole aligned with the opening of the limiting groove; The end of the push rod (3) away from the housing (10) is inserted into the through hole. When the push rod (3) is driven by the driving assembly to move toward the inside of the limiting groove, the push rod (3) is subjected to a reset bias force that assists its movement.

3. The automatic door ejector according to claim 2, characterized in that: It also comprises a reset member (2) which is arranged between the panel (1) and the top rod (3), and the reset bias force is provided by the reset member (2).

4. The automatic door ejector according to claim 3, characterized in that: The push rod (3) is provided with a boss, and one end of the reset member (2) sleeved on the push rod (3) abuts against the boss.

5. The automatic door opening device according to any one of claims 1 to 4, characterized in that: A limiting groove is provided on the groove wall of the limiting groove, and a limiting protrusion is provided on the push rod (3) and is slidably arranged in the limiting groove.

6. The automatic door ejector according to claim 5, characterized in that: The length of the limiting groove is arranged along the moving direction of the push rod (3).

7. The automatic door ejector according to claim 1, characterized in that: It also comprises a protective member (4) which is arranged between the push rod (3) and the driving assembly, and the protective member (4) is configured to be elastically deformed by being squeezed by the push rod (3) and the driving assembly.

8. The automatic door ejector according to claim 7, characterized in that: The protective member (4) is a spring arranged between the push rod (3) and the driving assembly.

9. The automatic door ejector according to claim 1, characterized in that: The drive assembly comprises: an output gear (8) connected to the driving member (11) and rotatably disposed in the housing (10); A secondary transmission gear (6) comprising a first gear surface and a second gear surface coaxially fixed to the first gear surface, wherein the first gear surface is meshed with the output gear (8); A gear condition (5) is slidably arranged in the limiting groove and connected to the push rod (3), and a rack is provided on the gear condition (5), and the rack is meshed with the second gear surface; Wherein, the gear member (5) is configured to be driven by the secondary transmission gear (6) to slide back and forth in the limiting groove.

10. The automatic door ejector according to claim 9, characterized in that: Also includes: A middle shaft (7) is passed through the secondary transmission gear (6) and fixed thereto; A bearing member (9) is arranged between the end of the central shaft (7) and the housing (10).

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