Limiting spring of limiting mechanism, limiting mechanism, door opener and automatic door
By designing a smooth end for the limiting spring, the problem of exposed spring wire caused by the plastic cap falling off was solved, thus avoiding snagging and scratches, extending service life, and simplifying the production process.
Patent Information
- Application Number
- CN202423133886.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The plastic cover of the limit spring is prone to falling off the spring body, resulting in exposed spring wires, which can then easily get caught on the contact parts and damage them.
Design a limiting spring formed by winding spring wire, with the second end located outside the limiting housing and in contact with the contacting part. The end forms a smooth surface to avoid exposing the spring wire, eliminate the need for a plastic cover, and simplify the structure.
This avoids snagging and scratching of the spring wire and the contact parts, extends the service life of the limit spring and the contact parts, simplifies the production process, and improves production efficiency.
Smart Images
Figure CN223608375U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of automatic doors, and particularly relates to a limiting spring of a limiting mechanism, the limiting mechanism, a door opener and an automatic door. BACKGROUND
[0002] Automatic doors are suitable for various medical, financial, office and other places. In the related art, the limiting mechanism of an automatic door generally adopts a mode in which a limiting spring cooperates with a limiting element. Specifically, when a door body is opened or closed to an extreme position, a contact piece on the door body contacts the limiting spring, so that the limiting spring of the limiting mechanism rotates to trigger the limiting element, thereby achieving the purpose of detecting the opening and closing positions of the door.
[0003] In the related art, the limiting spring comprises a spring body and a plastic cover. The plastic cover is sleeved on an exposed end of the spring body to contact the contact piece. The plastic cover covers the exposed end of the spring body, so that the spring wire at the end of the spring body is prevented from being hung on the contact piece, thereby preventing the contact piece and the spring body from being damaged. However, in this way, the plastic cover is prone to falling off the spring body after long-term use, so that the spring wire is exposed, and then the contact piece is prone to being hung on the spring wire when the contact piece contacts the spring body.
[0004] Therefore, in the related art, the plastic cover of the limiting spring is prone to falling off the spring body, so that the spring wire is exposed, and then the contact piece is prone to being hung on the spring wire. Invention content
[0005] The purpose of the embodiments of the application is to provide a limiting spring of a limiting mechanism, a limiting mechanism, a door opener and an automatic door, which can solve the problem that the plastic cover of the limiting spring is prone to falling off the spring body in the related art, so that the spring wire is exposed, and then the contact piece is prone to being hung on the spring wire.
[0006] In a first aspect, the embodiments of the application provide a limiting spring of a limiting mechanism. The limiting spring is formed by winding a spring wire. A first end of the limiting spring is arranged in a limiting shell of the limiting mechanism. A second end of the limiting spring is located outside the limiting shell and is used to contact a contact piece of the limiting mechanism. The spring wire at the second end of the limiting spring extends into a spring cavity of the limiting spring or is flush with an end face of the second end of the limiting spring, so that the end face of the second end of the limiting spring forms a smooth surface.
[0007] In a second aspect, the embodiments of the present application further provide a limiting mechanism, comprising a limiting shell, a contact piece, a limiting element and a limiting spring of the limiting mechanism, the limiting element is arranged in the limiting shell, and the limiting element is configured to be communicatively connected with a driving device of a door opener, the first end of the limiting spring is arranged in the limiting shell, the contact piece is arranged on a door body of an automatic door, and the contact piece is configured to contact the second end of the limiting spring.
[0008] In the case that the contact piece contacts the second end of the limiting spring, the limiting spring triggers the limiting element to control the driving device to stop.
[0009] In a third aspect, the embodiments of the present application further provide a door opener, comprising a driving device and the limiting mechanism, the driving device is communicatively connected with the limiting element of the limiting mechanism.
[0010] In a fourth aspect, the embodiments of the present application further provide an automatic door, comprising a door body and the door opener, the driving device of the door opener is configured to drive the door body to move, and the contact piece of the limiting mechanism is arranged on the door body.
[0011] In the embodiments of the present application, the second end of the limiting spring is located outside the limiting shell and is configured to contact the contact piece of the limiting mechanism, when the contact piece collides with the second end of the limiting spring, the limiting spring is rotated and deformed, and then the limiting element is triggered to achieve the limiting effect. In addition, the spring wire at the second end of the limiting spring extends into the spring cavity of the limiting spring or is flush with the end face of the second end of the limiting spring, so that the end face of the second end of the limiting spring forms a smooth surface, which can avoid the spring wire exposed outside the second end of the limiting spring, and then the spring wire can avoid contacting the contact piece, so that the spring wire can avoid hanging with the contact piece or scratching the contact piece, thereby prolonging the service life of the limiting spring and the contact piece. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a perspective view of the limiting spring of the limiting mechanism disclosed by the embodiments of the present application;
[0013] Figure 2 is a position relationship diagram of the first contact piece and the limiting spring in the door opening process disclosed by the embodiments of the present application;
[0014] Figure 3 is a position relationship diagram of the first contact piece and the limiting spring when the door is opened to the position disclosed by the embodiments of the present application (when the limiting spring triggers the second limiting element);
[0015] Figure 4 is a position relationship diagram of the second contact piece and the limiting spring in the door closing process disclosed by the embodiments of the present application;
[0016] Figure 5 is a position relationship diagram of the second contact piece and the limiting spring when the door is closed to the position (when the limiting spring triggers the first limiting element) disclosed by the embodiments of the present application;
[0017] Figure 6 is a position relationship diagram of the limiting shell and the first limiting element and the second limiting element disclosed by the embodiments of the present application.
[0018] Explanation of reference signs:
[0019] 100-limiting spring; 101-spring wire; 110-second end; 111-smooth surface; 120-hook;
[0020] 130-ring part; 200-limiting shell; 210-connecting column; 300-contact piece; 301-first contact piece;
[0021] 302-second contact piece; 310-connecting part; 320-contact part; 400-limiting element;
[0022] 401-first limiting element; 402-second limiting element; 500-door body; 600-rack;
[0023] 700-driving gear. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.
[0025] The terms “first”, “second”, and the like in the specification and claims of the present application are used to distinguish similar objects, not to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by “first”, “second”, etc. are usually a category, not limited to the number of objects, for example, the first object can be one or more. In addition, “and / or” in the specification and claims means at least one of the connected objects, and the character “ / ” generally represents an “or” relationship between the front and rear associated objects.
[0026] The limiting spring, limiting mechanism, door opener and automatic door provided by the embodiments of the present application will be described in detail below in combination with the drawings and specific embodiments and their application scenarios.
[0027] Reference Figures 1-6The limiting spring 100 of the limiting mechanism is wound by the spring wire 101, the first end of the limiting spring 100 is arranged in the limiting shell 200 of the limiting mechanism, the second end 110 of the limiting spring 100 is located outside the limiting shell 200 and is used for contacting the bumping piece 300 of the limiting mechanism, when the bumping piece 300 collides with the second end 110 of the limiting spring 100, the limiting spring 100 is rotated and deformed, and then the limiting element 400 is triggered to achieve the limiting effect.
[0028] The spring wire 101 at the second end 110 of the limiting spring 100 can be inserted into the spring cavity of the limiting spring 100 or flush with the second end 110 of the limiting spring 100, so that the end surface of the second end 110 of the limiting spring 100 can form a smooth surface 111.
[0029] In this way, the spring wire 101 can be avoided from being exposed outside the second end 110 of the limiting spring 100, and then the spring wire 101 can be avoided from contacting the bumping piece 300, so that the spring wire 101 can be avoided from being hung with the bumping piece 300 or from scratching the bumping piece 300, so as to prolong the service life of the limiting spring 100 and the bumping piece 300, and without the need of arranging a plastic cover at the second end 110 of the limiting spring 100, the structure of the limiting spring 100 can be effectively simplified, and the maintenance operation of the user in the use process can be simplified.
[0030] Here, since the limiting spring 100 is wound by the spring wire 101 and the plastic cover is omitted, the limiting spring 100 can be integrally processed in the production link, the complicated processing steps and the strict requirement for the part precision are avoided, so that the production efficiency can be significantly improved and the production process can be optimized.
[0031] In an optional embodiment of the application, as shown in Figure 1 The cross-sectional area of the smooth surface 111 can gradually decrease along the direction from the first end of the limiting spring 100 to the second end 110 of the limiting spring 100. In this way, the smooth surface 111 can form a gradually converging surface along the direction from the first end of the limiting spring 100 to the second end 110 of the limiting spring 100, and then when the end of the bumping piece 300 contacts the smooth surface 111, the gradually converging smooth surface 111 can guide the end of the bumping piece 300, so as to avoid the end of the bumping piece 300 from being inserted between the two adjacent ring parts 130 of the limiting spring 100 to form a clamping with the limiting spring 100.
[0032] In other embodiments, the cross-sectional area of the smooth surface 111 can also be unchanged along the direction from the first end of the limiting spring 100 to the second end 110 of the limiting spring 100.
[0033] In another alternative embodiment of the present application, the cross-sectional area of the smooth surface 111 gradually decreases in the direction from the second end 110 of the limit spring 100 to the first end of the limit spring 100, i.e. the smooth surface 111 is concave in the direction from the second end 110 of the limit spring 100 to the first end of the limit spring 100. In this way, the spring wire 101 at the second end 110 of the limit spring 100 can be further prevented from being exposed to contact with the bumping member 300.
[0034] In other embodiments, the cross-sectional area of the smooth surface 111 can also be constant in the direction from the second end 110 of the limit spring 100 to the first end of the limit spring 100.
[0035] In alternative embodiments, the limit spring 100 can include a plurality of ring portions 130, each of which can be distributed along the length direction of the limit spring 100 and adjacent two ring portions 130 are in contact. In this way, there is no gap between adjacent ring portions 130, which on the one hand is conducive to reducing the degree of deformation of the limit spring 100 during use, and on the other hand can further prevent the end of the bumping member 300 from being inserted between adjacent two ring portions 130 to form a clamping with the limit spring 100.
[0036] In other embodiments, adjacent two ring portions 130 can also not be in contact, i.e. there is a gap between adjacent two ring portions 130.
[0037] In alternative embodiments, the spring wire 101 at the second end 110 of the limit spring 100 can be connected with the cavity wall of the spring cavity of the limit spring 100. In this way, on the one hand, the spring wire 101 at the second end 110 of the limit spring 100 can be further prevented from being exposed to contact with the bumping member 300, and on the other hand, the ring portions 130 can be more closely contacted, and thus the limit spring 100 as a whole is more tightly compressed, so as to improve the rigidity of the limit spring 100, thereby being conducive to further reducing the degree of deformation of the limit spring 100 during use, and making it more difficult for the bumping member 300 to be inserted between adjacent two ring portions 130.
[0038] Of course, the spring wire 101 at the second end 110 of the limit spring 100 can also not be connected with the cavity wall of the spring cavity of the limit spring 100.
[0039] Based on the limiting spring 100 of the limiting mechanism provided in the embodiments of the present application, the embodiments of the present application further provide a limiting mechanism, which can include a limiting shell 200, a contact piece 300, a limiting element 400, and the limiting spring 100 of the limiting mechanism according to any one of the above embodiments. The limiting element 400 can be communicatively connected to a driving device of a door opener, the first end of the limiting spring 100 can be arranged in the limiting shell 200, the contact piece 300 can be arranged on a door body 500 of an automatic door, and the contact piece 300 can be used to touch the second end 110 of the limiting spring 100.
[0040] When the contact piece 300 touches the second end 110 of the limiting spring 100, the limiting spring 100 triggers the limiting element 400 to control the driving device to stop, thereby stopping the movement of the door body 500.
[0041] The beneficial effects achieved by the limiting mechanism provided in the embodiments of the present application are consistent with the beneficial effects achieved by the limiting spring 100 of the limiting mechanism provided in the embodiments of the present application, and thus will not be described here.
[0042] In optional embodiments, the contact piece 300 can be provided with two, which are a first contact piece 301 and a second contact piece 302. The first contact piece 301 and the second contact piece 302 can be arranged at two ends of the door body 500 in the moving direction of the door body 500, and the first contact piece 301 and the second contact piece 302 can touch the second end 110 of the limiting spring 100, respectively.
[0043] The limiting element 400 can be provided with two, which are a first limiting element 401 and a second limiting element 402. The first limiting element 401 and the second limiting element 402 can be arranged in the limiting shell 200, and the first end of the limiting spring 100 can be located between the first limiting element 401 and the second limiting element 402. The limiting spring 100 can trigger the first limiting element 401 and the second limiting element 402, respectively. Here, the first limiting element 401 and the second limiting element 402 can be communicatively connected to the driving device of the door opener. When the first limiting element 401 or the second limiting element 402 is triggered, the driving device is controlled to stop.
[0044] When the first contact piece 301 touches the second end 110 of the limiting spring 100, the limiting spring 100 can trigger the second limiting element 402, the second limiting element 402 controls the driving device to stop, and the movement of the door body 500 is stopped.
[0045] When the second contact piece 302 touches the second end 110 of the limiting spring 100, the limiting spring 100 can trigger the first limiting element 401, the first limiting element 401 controls the driving device to stop, and the movement of the door body 500 is stopped.
[0046] In an optional embodiment of this application, the contact member 300 may include a connecting portion 310 and a contact portion 320. The contact portion 320 may be connected to the connecting portion 310, and the connecting portion 310 may be used to connect to the door body 500. Furthermore, as... Figure 2 As shown, along the first direction a, the distance between the contact part 320 and the limiting housing 200 gradually increases in the second direction b. Here, the first direction a can be the direction from the connecting part 310 to the contact part 320, and the second direction b can be the direction from the limiting housing 200 to the door body 500. With this configuration, the contact part 320 can guide the limiting spring 100, making it easier for the limiting spring 100 to rotate away from the connecting part 310, thereby making it easier to trigger the limiting element 400. Furthermore, after the limiting spring 100 rotates, the contact part 320 can still contact the limiting spring 100, thus preventing the limiting spring 100 from rotating back to its initial position and causing the limiting element 400 to fail to remain in the triggered state.
[0047] Furthermore, in the second direction b, the end of the contact portion 320 away from the connecting portion 310 may be flush with or protrude from the second end of the limiting spring 100. This arrangement further prevents the end of the contact portion 320 away from the connecting portion 310 from being inserted between two adjacent ring portions 130, thereby preventing the contact portion 320 from jamming with the limiting spring 100.
[0048] It should be noted that, in the second direction b, the end of the contact portion 320 away from the connecting portion 310 being flush with or protruding from the second end of the limiting spring 100 refers to the positional relationship between the end of the contact portion 320 away from the connecting portion 310 and the second end of the limiting spring 100 in the second direction b, viewed perpendicular to the second direction b. Here, the direction perpendicular to the second direction b can be the movement direction of the door 500. Specifically, viewed in the movement direction of the door 500, the end of the contact portion 320 away from the connecting portion 310 being flush with or protruding from the second end of the limiting spring 100 in the second direction b.
[0049] In other embodiments, in the second direction b, the second end of the limiting spring 100 protrudes from the end of the contact portion 320 away from the connecting portion 310.
[0050] In this embodiment of the application, during the opening process, the first contact member 301 moves to the right along with the door body 500. The contact portion 320 of the first contact member 301 contacts the smooth surface 111 of the limiting spring 100, causing the limiting spring 100 to rotate and deform clockwise until the limiting spring 100 triggers the second limiting element 402, causing the second limiting element 402 to control the drive device to stop, thereby stopping the door body 500 from moving to the right.
[0051] In the closing process, the second contact 302 moves left with the door body 500, the contact part 320 of the second contact 302 contacts the smooth surface 111 of the limiting spring 100, and the limiting spring 100 is rotated counterclockwise and deformed until the limiting spring 100 triggers the first limiting element 401, so that the first limiting element 401 controls the driving device to stop, and then the door body 500 stops moving left.
[0052] Here, the first limiting element 401 and the second limiting element 402 can be micro switches.
[0053] Optionally, the door opener can include a controller, the first limiting element 401, the second limiting element 402 and the driving device can be in communication connection with the controller, and when the first limiting element 401 or the second limiting element 402 is triggered, a trigger signal can be transmitted to the controller, and after the controller receives the trigger signal, the driving device is controlled to stop.
[0054] In the optional embodiment, the limiting housing 200 can be provided with a connecting column 210, and the spring wire 101 at the first end of the limiting spring 100 can be bent into a hook 120, and the hook 120 can be hung on the connecting column 210 to realize the movable connection of the limiting spring 100 and the limiting housing 200.
[0055] By bending the spring wire 101 at the first end of the limiting spring 100 into the hook 120, compared with the way of additionally providing a through hole at the first end of the limiting spring 100 described below, the structure is simple and easy to process.
[0056] Of course, the spring wire 101 at the first end of the limiting spring 100 can also not be bent into the hook 120, specifically, a through hole can be provided at the first end of the limiting spring 100, and the connecting column 210 can extend into the through hole.
[0057] Based on the limiting mechanism provided in the embodiments of the application, the embodiments of the application further provide a door opener, which can include a driving device and the limiting mechanism of any of the above embodiments, and the driving device can be in communication connection with the limiting element 400 of the limiting mechanism.
[0058] The beneficial effects achieved by the door opener provided in the embodiments of the application are consistent with the beneficial effects achieved by the limiting mechanism provided in the embodiments of the application, and therefore will not be described here.
[0059] Optionally, in order to avoid that the door body 500 moves according to inertia to drive the contact piece 300 to press the limiting spring 100 after the driving device stops, and then the limiting spring 100 is deformed greatly, the door opener can comprise a distance detection module, the distance detection module is used for detecting the distance of the movement of the door body 500, and the controller can store a preset distance value, the distance detection module can be in communication connection with the controller, when the distance detection module detects that the distance of the movement of the door body 500 reaches the preset distance value, the controller controls the driving device to slow down, and then the movement speed of the door body 500 is reduced, so that the inertia of the door body 500 can be reduced, the pressing on the limiting spring 100 is reduced, and the limiting spring 100 is prevented from being deformed greatly.
[0060] Here, the distance detection module can be a distance sensor arranged on the door body 500, or the distance detection module can be a time detection module, the time detection module can be used for detecting the working time of the driving device, and the controller can calculate the distance of the movement of the door body 500 according to the working time of the driving device detected by the time detection module and the movement speed of the door body 500, and then it can be judged whether the distance of the movement of the door body 500 reaches the preset distance value.
[0061] In the optional embodiment, the door opener can further comprise a transmission device, the driving device is in transmission connection with the transmission device, the transmission device is connected with the door body 500, and the driving device drives the door body 500 to move through the transmission device. Here, the driving device can be a driving motor.
[0062] Based on the door opener provided in the embodiment of the application, the embodiment of the application further provides an automatic door, the automatic door can comprise a door body 500 and the door opener described in the above embodiment, the driving device of the door opener is used for driving the door body 500 to move, and the contact piece 300 of the limiting mechanism can be arranged on the door body 500.
[0063] The automatic door provided in the embodiment of the application achieves the beneficial effects consistent with the beneficial effects achieved by the door opener provided in the embodiment of the application, and therefore details are not repeated here.
[0064] In the optional embodiment, the bottom of the door body 500 can be provided with a rack 600, and the transmission device of the door opener can comprise a transmission gear 700, the transmission gear 700 can be engaged with the rack 600, so as to drive the rack 600 to move through the rotation of the transmission gear 700, and then the movement of the door body 500 is realized.
[0065] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative, but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims.
Claims
1. A stopper spring of a stopper mechanism, characterized by, The limiting spring (100) is formed by winding spring wires (101), a first end of the limiting spring (100) is arranged in a limiting shell (200) of a limiting mechanism, a second end (110) of the limiting spring (100) is located outside the limiting shell (200) and is used to contact a contact piece (300) of the limiting mechanism, the spring wires (101) at the second end (110) of the limiting spring (100) extend into a spring cavity of the limiting spring (100) or are flush with an end face of the second end (110) of the limiting spring (100), so that the end face of the second end (110) of the limiting spring (100) forms a smooth surface (111).
2. The check spring of a check mechanism according to claim 1, wherein The cross-sectional area of the smooth surface (111) gradually decreases in a direction from the first end of the limiting spring (100) to the second end (110) of the limiting spring (100).
3. The check spring of a check mechanism according to claim 1, wherein The cross-sectional area of the smooth surface (111) gradually decreases in a direction from the second end (110) of the limiting spring (100) to the first end of the limiting spring (100).
4. The check spring of a check mechanism according to claim 1, wherein The limiting spring (100) comprises a plurality of ring portions (130), each of the ring portions (130) is distributed along the length direction of the limiting spring (100), and two adjacent ring portions (130) are in contact.
5. The check spring of a check mechanism according to claim 1, wherein The spring wires (101) at the second end (110) of the limiting spring (100) are connected with the cavity wall of the spring cavity of the limiting spring (100).
6. A stop mechanism, characterized by The limiting mechanism comprises a limiting shell (200), a contact piece (300), a limiting element (400) and the limiting spring (100) of any one of claims 1-5, the limiting element (400) is arranged in the limiting shell (200), and the limiting element (400) is used to be communicatively connected with a driving device of a door opener, a first end of the limiting spring (100) is arranged in the limiting shell (200), and the contact piece (300) is arranged on a door body (500) of an automatic door and is used to contact a second end (110) of the limiting spring (100); In the case that the contact piece (300) contacts the second end (110) of the limiting spring (100), the limiting spring (100) triggers the limiting element (400) to control the driving device to stop.
7. The limit mechanism of claim 6, wherein, The contact piece (300) comprises a connecting portion (310) and a contact portion (320) connected with the connecting portion (310), the connecting portion (310) is used to be connected with the door body (500), the distance between the contact portion (320) and the limiting shell (200) in a second direction gradually increases in a first direction, the first direction is the direction from the connecting portion (310) to the contact portion (320), and the second direction is the direction from the limiting shell (200) to the door body (500). In the second direction, one end of the contact part (320) away from the connecting part (310) is flush with or protrudes from the second end of the limiting spring (100).
8. The limit mechanism of claim 6, wherein, The limiting shell (200) is provided with a connecting column (210), and the spring wire (101) at the first end of the limiting spring (100) is bent into a hook (120) which is hung on the connecting column (210).
9. A door opener characterized by The drive device is in communication connection with the limiting element (400) of the limiting mechanism.
10. An automatic door, characterized in that The drive device of the door opener is used to drive the door body (500) to move, and the contact part (300) of the limiting mechanism is arranged on the door body (500).