Elevator landing door lock device
By using stainless steel inner lining plates, dustproof structures, and buffer components in the elevator landing door lock device, the problems of easy rusting of the lock hook and dust entry are solved, achieving anti-corrosion, dustproof, and buffering effects, and improving the safety and service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 费家林
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-19
AI Technical Summary
Existing elevator landing door lock devices are susceptible to corrosion, and dust easily enters the contact points, resulting in poor buffering effect and affecting the stability and service life of the device.
It adopts a corrosion-resistant component with a stainless steel inner lining plate that fits into the inner wall of the lock hook, and is equipped with a dustproof structure and a buffer component, including an elastic sealing ring and a buffer spring, in conjunction with a baffle and a counterweight to reduce frictional resistance and impact force.
It effectively prevents rust, blocks dust from entering, mitigates impact, and improves the safety, stability, and service life of the device.
Smart Images
Figure CN224377409U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator safety equipment technology, specifically to an elevator landing door lock device. Background Technology
[0002] An elevator is a permanent transportation device that uses rigid tracks to move between several specific floors within a building. Elevator landing doors are generally composed of components such as doors, guide rails, pulleys, sliders, door frames, and sills. An elevator landing door lock device is a safety device installed on the elevator landing door to prevent the door from being opened accidentally.
[0003] Currently, existing elevator landing door lock devices have some shortcomings during use. For example, components such as the lock hook are easily affected by corrosion, reducing their service life and safety; dust easily enters parts such as the contact pins, affecting the contact effect; and the buffering effect is poor during door closing, easily generating large impact forces, affecting the stability and service life of the device. Therefore, this utility model proposes an elevator landing door lock device. Utility Model Content
[0004] In view of this, the present invention provides an elevator landing door lock device to solve the problems mentioned in the background art. The device has good anti-corrosion and dustproof performance, and good buffering effect, which can effectively improve the safety and service life of the elevator landing door lock device.
[0005] The technical solution of this utility model embodiment is implemented as follows: an elevator landing door lock device, comprising:
[0006] A support member and a secondary locking hook, wherein a connecting shaft is mounted on the top end of the support member and the secondary locking hook is mounted on one end of the connecting shaft;
[0007] A secondary anti-slip device, which is movably connected to the top of the secondary locking hook;
[0008] The main locking hook is installed at the top of the secondary locking hook, and a contact post is provided above the main locking hook.
[0009] A buffer assembly is disposed inside the right side of the main locking hook:
[0010] A dustproof structure is provided at the top of the contact post;
[0011] The anti-corrosion component is installed on the inner wall of the secondary lock hook, and the anti-corrosion component has a stainless steel inner lining plate. The edge of the inner lining plate is bent and fits against the inner wall of the lock hook. The surface is polished to Ra0.8μm, which not only avoids rust but also reduces the frictional resistance when the anti-pickup device moves.
[0012] Furthermore, the dustproof structure includes:
[0013] A fixed bracket is disposed at the top of the contact post, and a contact seat is installed at the top of the fixed bracket;
[0014] A mating groove is provided inside the contact seat, and a fixed contact is installed inside the mating groove;
[0015] An elastic sealing ring is installed around the inside of the mating groove. When the contact post is inserted, the sealing ring is compressed and deformed to form a tight dynamic seal.
[0016] Furthermore, a buffer groove is provided inside the right side of the main locking hook, and the buffer assembly is located inside the buffer groove. The buffer assembly includes:
[0017] The movable plate, wherein the contact post is fixedly connected to the movable plate;
[0018] The buffer springs are provided in three sets, with their two ends connected to the bottom of the buffer groove and the middle of the movable plate, and each of the three sets of buffer springs consists of a spring and a damper.
[0019] Furthermore, a baffle is installed on the other side of the top of the secondary lock hook, a counterweight is installed on one side of the baffle, and a sound-dampening pad is installed on the outer wall of the counterweight.
[0020] The baffle is bolted to the top of the secondary locking hook, and the counterweight is bolted to one side of the secondary locking hook.
[0021] Furthermore, the side profile of the fixed bracket is inverted "L" shape, and the position of the fixed contact point corresponds to the position of the contact post.
[0022] Furthermore, a ball is installed on the outer wall of the secondary locking hook.
[0023] This utility model embodiment, by adopting the above technical solution, has the following advantages: By setting up an anti-corrosion component, which uses a stainless steel inner lining plate with bent edges that fit snugly against the inner wall of the lock hook, and polished to Ra0.8μm, this design effectively prevents lock hook corrosion, extends its service life, reduces frictional resistance during anti-pickpocketing device movement, ensures flexible operation of the anti-pickpocketing device, and improves the safety and reliability of the device.
[0024] The dustproof structure effectively prevents dust accumulation. The combination of the fixed bracket, contact seat, mating groove, and fixed contact provides a stable working environment for the contact post. The elastic sealing ring deforms under pressure when the contact post is inserted, forming a tight, dynamic seal that effectively prevents dust from entering, ensures good contact, and improves the stability of the device.
[0025] The buffer assembly effectively mitigates the impact force during the door lock closing process. The three sets of buffer springs, each containing a spring and damper, provide excellent cushioning and shock absorption when the movable plate drives the contact pins, reducing damage to the device's components from impact, extending the device's lifespan, and also lowering the noise generated when the door lock closes.
[0026] The baffle, counterweight, and noise-dampening pad on the outer wall of the counterweight installed on the other side of the top of the secondary locking hook can balance the weight of the secondary locking hook and ensure the stability of the movement of the secondary locking hook. The noise-dampening pad can reduce the noise generated when the counterweight moves, and improve the smoothness and quietness of the device operation.
[0027] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the structure of an elevator landing door lock device in the open state according to the present invention;
[0030] Figure 2 This is a schematic diagram of the structure of an elevator landing door lock device in its closed state according to the present invention;
[0031] Figure 3 This utility model Figure 2 A partial schematic diagram of A in the middle;
[0032] Figure 4 This utility model Figure 2 A partial schematic diagram of B in the diagram;
[0033] Figure 5 This utility model Figure 1 A partial schematic diagram of C.
[0034] Reference numerals: 1. Support component; 2. Secondary locking hook; 3. Secondary anti-pry device; 4. Main locking hook; 401. Buffer groove; 5. Contact post; 6. Dustproof structure; 601. Fixed bracket; 602. Contact seat; 603. Connecting groove; 604. Fixed contact; 605. Elastic sealing ring; 7. Connecting shaft; 8. Baffle; 9. Noise damping pad; 10. Counterweight; 11. Gateball; 12. Buffer assembly; 13. Buffer spring; 14. Movable plate; 15. Anti-corrosion assembly. Detailed Implementation
[0035] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0036] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0037] Example
[0038] like Figures 1-5 As shown, this utility model embodiment provides an elevator landing door lock device, including:
[0039] The support member 1 and the auxiliary locking hook 2 are provided. The top end of the support member 1 is equipped with a connecting shaft 7, and the auxiliary locking hook 2 is installed at one end of the connecting shaft 7. The auxiliary locking hook 2 and the support member 1 are rotatably connected through the connecting shaft 7, so that the auxiliary locking hook 2 can rotate around the connecting shaft 7 at a certain angle. The auxiliary anti-pickpocket device 3 is movably connected to the top end of the auxiliary locking hook 2, so as to ensure that the auxiliary anti-pickpocket device 3 can move flexibly at the top end of the auxiliary locking hook 2 and play an anti-pickpocket role.
[0040] The main locking hook 4 is installed at the top of the auxiliary locking hook 2, and a contact post 5 is provided above the main locking hook 4;
[0041] Buffer assembly 12, wherein the buffer assembly 12 is disposed inside the right side of the main locking hook 4:
[0042] Dustproof structure 6, which is disposed at the top of contact post 5;
[0043] The anti-corrosion component 15 is installed on the inner wall of the secondary lock hook 2. The anti-corrosion component 15 has a stainless steel inner lining plate with the edge bent and fitted to the inner wall of the lock hook. The surface is polished to Ra0.8μm, which not only avoids rust but also reduces the frictional resistance when the anti-pickup device moves.
[0044] In one embodiment, the dustproof structure 6 specifically includes: a fixed bracket 601, which is disposed at the top of the contact post 5, and a contact seat 602 is installed at the top of the fixed bracket 601; a mating groove 603, which is disposed inside the contact seat 602, and a fixed contact 604 is installed inside the mating groove 603; and an elastic sealing ring 605, which is installed in a ring inside the mating groove 603. When the contact post 5 is inserted, the sealing ring is squeezed and deformed to form a tight dynamic seal, thereby playing a dustproof role.
[0045] In one embodiment, a buffer groove 401 is provided inside the right side of the main locking hook 4, and the buffer assembly 12 is located inside the buffer groove 401. The buffer assembly 12 includes: a movable plate 14, on which the contact post 5 is fixedly connected; and a buffer spring 13, which is provided in three sets, with its two ends respectively connected to the bottom of the buffer groove 401 and the middle of the movable plate 14, and each of the three sets of buffer springs 13 is composed of a spring and a damper.
[0046] When the movable plate 14 drives the contact post 5 to move, it can effectively play a buffering role.
[0047] In one embodiment, a baffle 8 is installed on the other side of the top of the secondary locking hook 2, a counterweight 10 is installed on one side of the baffle 8, and a noise-reducing pad 9 is installed on the outer wall of the counterweight 10; the noise-reducing pad 9 can be made of rubber and is glued to the outer wall of the counterweight 10 to reduce the noise generated when the counterweight 10 moves.
[0048] The baffle 8 is bolted to the top of the secondary locking hook 2, and the counterweight 10 is bolted to one side of the secondary locking hook 2.
[0049] In one embodiment, the side profile of the fixed bracket 601 is inverted "L" shape, and the position of the fixed contact 604 corresponds to the position of the contact post 5.
[0050] In operation, this utility model's elevator door lock device works as follows: when the elevator door is closed, the main lock hook 4 and the auxiliary lock hook 2 cooperate to lock the door, and the contact post 5 contacts the fixed contact 604 to ensure circuit continuity. During this process, the anti-corrosion component 15 prevents the auxiliary lock hook 2 from rusting and reduces frictional resistance during the movement of the anti-pry device; the dustproof structure 6 prevents dust from entering the contact area; the buffer component 12 mitigates impact; and the baffle, counterweight, and sound-dampening pad ensure stable and quiet operation of the device.
[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. An elevator landing door lock device, characterized in that, include: The support member (1) and the secondary locking hook (2) are provided. A connecting shaft (7) is installed at the top of the support member (1), and the secondary locking hook (2) is installed at one end of the connecting shaft (7). A secondary anti-pickpocket device (3) is movably connected to the top of the secondary locking hook (2); The main locking hook (4) is installed at the top of the secondary locking hook (2), and a contact post (5) is provided above the main locking hook (4); A buffer assembly (12) is disposed inside the right side of the main locking hook (4); A dustproof structure (6) is provided at the top of the contact post (5); The anti-corrosion component (15) is installed on the inner wall of the secondary lock hook (2), and the anti-corrosion component (15) has a stainless steel inner lining plate. The edge of the inner lining plate is bent and fits against the inner wall of the lock hook. The surface is polished to Ra0.8μm, which not only avoids rust but also reduces the frictional resistance when the anti-pick device moves.
2. The elevator landing door lock device according to claim 1, characterized in that, The dustproof structure (6) includes: A fixed bracket (601) is disposed at the top of the contact post (5), and a contact seat (602) is installed at the top of the fixed bracket (601). A docking groove (603) is provided inside the contact seat (602), and a fixed contact (604) is installed inside the docking groove (603); An elastic sealing ring (605) is installed around the inside of the mating groove (603). When the contact post is inserted, the sealing ring is squeezed and deformed to form a tight dynamic seal.
3. The elevator landing door lock device according to claim 1, characterized in that, The main locking hook (4) has a buffer groove (401) inside on the right side, and the buffer assembly (12) is located inside the buffer groove (401). The buffer assembly (12) includes: Movable plate (14), the contact post (5) is fixedly connected to the movable plate (14); The buffer spring (13) is provided in three sets, with its two ends connected to the bottom of the buffer groove (401) and the middle of the movable plate (14) respectively. The three sets of buffer springs (13) are composed of springs and dampers respectively.
4. The elevator landing door lock device according to claim 1, characterized in that, A baffle (8) is installed on the other side of the top of the secondary lock hook (2), a counterweight (10) is installed on one side of the baffle (8), and a sound damping pad (9) is installed on the outer side wall of the counterweight (10). The baffle (8) is bolted to the top of the secondary locking hook (2), and the counterweight (10) is bolted to one side of the secondary locking hook (2).
5. The elevator landing door lock device according to claim 2, characterized in that, The side profile of the fixed bracket (601) is inverted "L" shape, and the position of the fixed contact (604) corresponds to the position of the contact post (5).
6. The elevator landing door lock device according to claim 1, characterized in that, A ball (11) is installed on the outer wall of the secondary locking hook (2).