Elevator door lock guard

Abstract

The utility model discloses an elevator door lock protection cover relates to elevator door lock protection technical field, including cover body, cleaning groove is set up in the side of cover body and with its inside intercommunication, and cleaning groove sets up on the sliding path of door lock lock hook, and door lock lock hook is close to when entering cover body, in proper order through cleaning groove and cover body inner chamber, multiple groups of scraper, set up in the inner wall of cleaning groove, its is obliquely set to cleaning groove outside, and scraper is combined with door lock lock hook, and when the relative sliding of both, scraper produces friction force to the outer surface of lock hook.

Description

Technical Field

[0001] This utility model relates to the field of elevator door lock protection technology, specifically an elevator door lock protective cover. Background Technology

[0002] As a crucial component of elevator systems, elevator door locks are susceptible to damage from the accumulation of dust, oil, and other impurities over long-term use, which can affect their normal operation. Currently, elevator door locks are typically exposed to the external environment without effective protective measures. To ensure the reliability and lifespan of door locks, the industry has increasingly adopted the practice of installing protective covers on the outside of the locks. These devices primarily isolate external contaminants and reduce the adhesion of impurities to the lock hook surface, thereby maintaining the door lock's operational flexibility and electrical contact performance.

[0003] Currently, existing protective covers have a limited function, providing only basic shielding and failing to actively clean the hook surface. As elevator usage increases, dirt gradually accumulates on the hook surface, causing door locks to jam or make poor contact, and even leading to electrical malfunctions. Furthermore, the lack of a cleaning mechanism necessitates frequent disassembly of the protective covers for manual cleaning, increasing maintenance costs and workload, and also impacting the elevator's normal operating efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an elevator door lock protective cover.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An elevator door lock protective cover, including

[0007] The cover is detachably fixed to the elevator from the back.

[0008] A cleaning groove is provided on the side of the cover and communicates with its interior. The cleaning groove is set on the sliding path of the door lock hook. When the door lock hook approaches and enters the cover, it passes through the cleaning groove and the inner cavity of the cover in sequence.

[0009] Multiple scrapers are disposed on the inner wall of the cleaning tank and are inclined toward the outer side of the cleaning tank. The scrapers are fitted and cooperate with the door lock hook, and when the two slide relative to each other, the scrapers generate friction on the surface of the lock hook.

[0010] Preferably, the cleaning tank is divided into an outer part and a connecting part that connects the outer part to the inner cavity of the cover. The size of the connecting part is adapted to the outer size of the locking hook, and the outer size is larger than the connecting part.

[0011] Preferably, the outer inner bottom surface is set as an inclined slope, which slopes from a high position near the connecting part to a low position away from the connecting part, and the inclined surface is smoothly connected to the connecting part.

[0012] Preferably, the scraper includes a hard section and a soft section, the hard section is fixed to the outer inner wall, the soft section is fixed to the hard section and is in contact with the locking hook, and there is a gap between the soft section and the outer inner wall.

[0013] Preferably, the angle of inclination of the scraper gradually increases from the side near the connection part outwards, and the angle between the outermost scraper and the sliding direction of the locking hook inserted into the cover is the smallest.

[0014] Preferably, a loosely arranged ring of bristles is fixed to the outermost side of the inner wall, and the size of the loosely arranged bristles is smaller than the outer dimensions of the lock hook.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting a cleaning groove and multiple sets of gradient inclined scrapers on the side of the cover, allows the door lock hook to undergo a dual cleaning process of initial brush cleaning and gradient scraping by scrapers each time it slides into the cover. This process can remove dust, oil and other impurities from the surface of the lock hook, effectively avoiding problems such as door lock jamming and poor electrical contact caused by the accumulation of impurities.

[0017] 2. This utility model, through the design of the inclined surface dust collection of the cleaning tank, the dust storage of the detachable dust collection box, and the automatic cleaning of the scraper, increases the maintenance cycle of maintenance personnel and shortens the time of each maintenance, thereby reducing the cost of manual maintenance. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0019] Figure 1 This is a schematic diagram of the structure of an elevator door lock protective cover according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the cover of this utility model;

[0021] Figure 3 This is a schematic diagram of the scraper structure of this utility model.

[0022] The diagram shows the following labels: 1. Cover; 2. Cleaning tank; 3. Scraper; 4. Exterior; 5. Connecting part; 6. Sloping surface; 7. Hard section; 8. Soft section; 9. Loose brush. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example

[0025] like Figure 1 As shown, an elevator door lock protective cover includes a cover body 1, which is detachably fixed to the elevator. The back of the cover body 1 is provided with threaded holes. During installation, the cover body 1 is precisely fixed to the corresponding installation plane of the elevator door lock by means of stainless steel fastening bolts, ensuring that the relative position deviation between the cover body 1 and the door lock hook does not exceed ±1mm, and avoiding the normal sliding of the lock hook due to installation offset.

[0026] The front of the cover 1 is designed as an open structure and is connected to the outside, which makes it convenient for maintenance personnel to regularly inspect and lubricate the door lock components inside the cover 1. A sealing plate is slidably installed on the front of the cover 1. During normal use, the sealing plate can be completely closed to seal the inner cavity of the cover 1, forming a fully enclosed protection. During maintenance, it can be opened simply by pushing the sealing plate. The operation is convenient and does not require disassembling the entire protective cover, which shortens the maintenance time.

[0027] The cover 1 has two sets of symmetrical T-shaped grooves on the front along the vertical direction. The matching sealing plate has two sets of T-shaped sliders that are adapted to the T-shaped grooves on the side. The opening and closing of the sealing plate is achieved by the sliding cooperation between the T-shaped sliders and the T-shaped grooves.

[0028] Preferred, such as Figure 2 As shown, the cleaning groove 2 is located on the side of the cover 1 near the door lock hook and is connected to its interior. The axis of the cleaning groove 2 is collinear with the sliding axis of the door lock hook, ensuring that the lock hook can accurately enter the cleaning groove 2 when it slides.

[0029] The cleaning tank 2 has a stepped structure, consisting of an outer part 4 and a connecting part 5 that connects the outer part 4 to the inner cavity of the cover 1. The connecting part 5 serves as a transition channel for the lock hook to enter the inner cavity of the cover 1. Its cross-sectional dimensions are perfectly matched with the outer dimensions of the door lock hook, ensuring smooth sliding of the lock hook and preventing impurities from entering the inner cavity of the cover 1 through the gap between the connecting part 5 and the lock hook. The outer part 4 is larger than the connecting part 5, and the larger size is 30%-50% of the lock hook size, providing sufficient space for the installation of the scraper 3 and the loose brush 9 and for the collection of impurities.

[0030] The inner bottom surface of the outer 4 is set as an inclined slope 6, with the inclination angle of the slope 6 controlled between 15° and 20°. It slopes from a high position near the connecting part 5 to a low position away from the connecting part 5. The slope 6 and the connecting part 5 are smoothly connected. This structural design allows dust, oil and other impurities scraped off during the cleaning process to slide naturally down the slope 6 to the lowest end of the outer 4, avoiding the accumulation of impurities in the cleaning tank 2. At the same time, a detachable dust collection box can be preset at the lowest end of the outer 4. Maintenance personnel can disassemble the dust collection box regularly to clean impurities without deep disassembly of the cleaning tank 2, further reducing the difficulty of operation and maintenance.

[0031] Preferred, such as Figure 2 As shown, the cleaning groove 2 is set on the sliding path of the door lock hook. As the door lock hook approaches and enters the cover 1, it will approach the cover 1 along the preset sliding trajectory. Before entering the cover 1, it will pass through the outer part 4 and the connecting part 5 of the cleaning groove 2 in sequence, and finally enter the inner cavity of the cover 1 to complete the locking action. This design allows the lock hook to pass through the cleaning groove 2 every time it slides, achieving the effect of cleaning while sliding, and avoiding the long-term accumulation of impurities on the surface of the lock hook.

[0032] The scraper 3 fits snugly against the door lock hook, and when the two slide relative to each other, the scraper 3 generates friction on the surface of the lock hook, effectively scraping away dust, oil and other impurities attached to the surface;

[0033] A loosely arranged ring-shaped brush 9 is fixed on the outermost side of the inner wall of the outer 4. The size of the loosely arranged brush 9 is smaller than the outer size of the lock hook. The loosely arranged brush 9 is made of nylon, and the inner circle size of the loosely arranged brush 9 is 2-3mm smaller than the outer size of the lock hook. This allows the lock hook to be pre-cleaned by the loosely arranged brush 9 before entering the cleaning tank 2, which can remove more than 70% of the large particles of impurities on the surface of the lock hook, reduce the cleaning burden of the subsequent scraper 3, and prevent large particles of impurities from damaging the soft section 8 of the scraper 3.

[0034] Preferred, such as Figure 2-3 As shown, multiple scrapers 3 are installed on the inner wall of the cleaning tank 2, including a hard section 7 and a soft section 8. The hard section 7 is made of ABS engineering plastic and is fixed to the inner wall of the outer 4 with high-strength epoxy resin to ensure the overall structural stability of the scraper 3 and prevent loosening or displacement during long-term use. The soft section 8 is made of food-grade silicone material and is integrally molded with the hard section 7 through a molding process. The free end of the soft section 8 is tightly attached to the outer surface of the locking hook.

[0035] Furthermore, a 5-8mm gap is reserved between the soft section 8 and the inner wall of the outer surface 4. This gap provides sufficient deformation space for the soft section 8, preventing the soft section 8 from being damaged due to excessive compression when the lock hook slides. At the same time, it ensures that the soft section 8 always generates a stable cleaning friction force on the surface of the lock hook, and also allows dust to slide down the inclined surface 6 through the gap.

[0036] The scraper 3 is inclined towards the outside of the cleaning tank 2, and the angle of inclination gradually increases from the side near the connecting part 5. The angle between the outermost scraper 3 and the sliding direction of the hook inserted into the cover 1 is the smallest. This gradient inclination design allows the hook to be initially scraped with high intensity by the outer scraper 3 with a larger inclination angle when it enters the cleaning tank 2, mainly removing surface dust and loose oil stains. Then, the remaining cleaning is done by the inner scraper 3 with a smaller inclination angle, achieving gradient cleaning, improving cleaning efficiency, and avoiding the problem of increased sliding resistance of the hook due to excessive cleaning force in a single cleaning.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An elevator door lock protective cover, characterized in that: include The cover is detachably fixed to the elevator from the back. A cleaning groove is provided on the side of the cover and communicates with its interior. The cleaning groove is set on the sliding path of the door lock hook. When the door lock hook approaches and enters the cover, it passes through the cleaning groove and the inner cavity of the cover in sequence. Multiple scrapers are disposed on the inner wall of the cleaning tank and are inclined toward the outer side of the cleaning tank. The scrapers are fitted and cooperate with the door lock hook, and when the two slide relative to each other, the scrapers generate friction on the surface of the lock hook.

2. The elevator door lock protective cover according to claim 1, characterized in that: The cleaning tank is divided into an outer part and a connecting part that connects the outer part to the inner cavity of the cover. The size of the connecting part is adapted to the outer size of the locking hook, and the outer size is larger than the connecting part.

3. The elevator door lock protective cover according to claim 2, characterized in that: The outer inner bottom surface is set as an inclined slope, which slopes from a high position near the connecting part to a low position away from the connecting part, and the inclined surface is smoothly connected to the connecting part.

4. The elevator door lock protective cover according to claim 3, characterized in that: The scraper includes a hard section and a soft section. The hard section is fixed to the outer inner wall, and the soft section is fixed to the hard section and in contact with the locking hook. There is a gap between the soft section and the outer inner wall.

5. The elevator door lock protective cover according to claim 4, characterized in that: The angle of inclination of the scraper gradually increases from the side near the connection part outwards, and the angle between the outermost scraper and the sliding direction of the locking hook inserted into the cover is the smallest.

6. The elevator door lock protective cover according to claim 5, characterized in that: The outermost side of the inner wall is fixed with a loosely arranged ring of bristles, the size of which is smaller than the outer dimensions of the lock hook.

Images