A type of elevator side-opening door operator

Abstract

This invention discloses a side-opening elevator door operator, comprising a basic structure and an actuation component. In the basic structure, the door motor and other components are rationally arranged inside the mounting base plate, and its bent edges prevent impurities from entering. The actuation component includes a door opening limit switch, a door pulley assembly, and a door opening force holding device on the door operator guide rail, with a linkage mechanism ensuring coordinated movement of the components. The door knife assembly is unique; the door knife is mounted on the fast door pulley assembly, and its operating structure allows for car door fast door operations without disassembling the door knife. Furthermore, the door knife mounting structure facilitates position adjustment. This invention solves problems such as motor protection and inconvenient door knife operation, featuring a compact structure, convenient installation and maintenance, and ensuring stable and safe elevator operation.

Description

Technical Field

[0001] This invention relates to the field of elevator equipment technology, and in particular to an elevator side-opening door operator. Background Technology

[0002] In the current field of elevator side-opening door operator technology, there are many technical challenges that urgently need to be addressed. Traditional motor placement methods mainly fall into two categories. The first is placing the motor outside the mounting base plate. While this method can reduce the height of the mounting base plate to some extent, saving materials, it leaves the motor, belt, and tensioner completely exposed without any protective measures. In actual use environments, it is highly susceptible to impacts from falling cement, mud, and dust. This not only greatly increases the cleaning workload during installation and maintenance but also seriously affects the normal operation of the motor, significantly increasing the probability of motor failure and posing a potential threat to the safe and stable operation of the elevator. The second method involves placing the motor inside the mounting base plate. However, because the internal space of the mounting base plate is occupied by numerous other door operator components, the motor must be placed at a higher position to avoid these components, resulting in a significant increase in the overall height of the mounting base plate. This not only increases material consumption and production costs but may also adversely affect the top floor height of the elevator, limiting its application in certain building environments.

[0003] Furthermore, regarding the installation structure of the door knife and car door shutter, traditional side-opening door operators typically have the door knife fixedly installed on the opening side, and the shutter also requires bolts and adjusting shims to be installed on the opening side. The presence of the door knife obstructs the operating space for engineering and maintenance personnel, forcing them to remove the door knife before performing any installation or adjustment work related to the car door shutter, and then restore it to its original position after the work is completed. This restoration process is extremely complex and tedious, requiring precise confirmation of numerous dimensional parameters to ensure the door operator can resume normal operation. This undoubtedly greatly increases the workload of repetitive adjustments for engineering and maintenance personnel, prolongs elevator installation and maintenance time, reduces work efficiency, and also increases the risk of elevator malfunctions due to human error. Summary of the Invention

[0004] The purpose of this invention is to provide a side-opening elevator door operator. This structure houses the motor inside the mounting base plate and, through a carefully designed door operator structure and spatial layout, achieves a highly compact door operator structure, successfully reducing the height of the mounting base plate, thereby reducing costs and minimizing adverse effects on the top floor height. Simultaneously, the right swing arm of this invention employs a unique releasable design mechanism, meaning the door operator does not need to be removed; simply releasing the right swing arm frees up operating space for the car door's mounting bolts or adjusting shims, effectively reducing the workload of repeated adjustments for engineering and maintenance personnel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an elevator side-opening door operator, comprising a basic structural component and an action execution component, wherein:

[0006] The infrastructure components include:

[0007] The mounting base plate has a bent edge at the top and houses a door motor for power generation, a belt for power transmission, a tensioning device for belt tension adjustment, a cam groove for specific mechanical connections, and a lock seat. The bent edge prevents external cement, mud, and dust from falling into the internal component installation area. The output shaft of the door motor is connected to one end of the belt, and the other end of the belt bypasses the cam groove and is kept under tension by the tensioning device, thus establishing a power transmission link inside the mounting base plate. The lock seat, door motor, and cam groove together form the basic power and connection structure within the mounting base plate. The door motor is located far away from the door side inside the mounting base plate to prevent spatial interference between other components related to the door opening action.

[0008] As a further improvement to the technical solution of the present invention, the action execution component includes:

[0009] The door operator guide rail consists of two rails vertically fixed to the mounting base. Each guide rail is equipped with an opening limit component to restrict the door opening width, a shutter pulley assembly forming the fast shutter motion system, a slow shutter pulley assembly forming the slow shutter motion system, and an opening force holding device to maintain stable opening force. The fast and slow shutter pulley assemblies can slide along the guide rails by engaging with the pulleys. The opening limit component restricts their sliding stroke through mechanical blocking. The opening force holding device interacts with the fast and slow shutter pulley assemblies using springs or magnetic attraction to maintain force balance in the open state.

[0010] A linkage device is installed on the slow door pulley assembly and is connected to the fast door pulley assembly via a steel wire rope. The steel wire rope clamping plate of the linkage device is fixed to the mounting base plate with bolts. The rope wheel of the linkage device is arranged perpendicularly to the back of the mounting base plate to ensure the coordination and non-interference of the movement of each component during the operation of the door motor. When the slow door pulley assembly moves, the linkage device drives the fast door pulley assembly to perform corresponding coordinated movement through the traction of the steel wire rope. Its perpendicular arrangement with the mounting base plate ensures that it will not collide or interfere with the door motor during the movement.

[0011] As a further improvement to the technical solution of the present invention, it also includes a door knife assembly, the door knife assembly comprising:

[0012] A door knife, mounted on the shutter door pulley assembly, includes a door operator hook, an adjusting baffle, an adjusting bolt, a right tie rod, a left tie rod, a crossbar, and a rubber block. The adjusting baffle is mounted on the right tie rod and serves to limit and block the movement of the door operator hook. The adjusting bolt is screwed onto the door knife base plate, and its position can be adjusted to change the position of the door operator hook. One end of the crossbar is connected to one end of the left tie rod, and the other end is connected to one end of the door operator hook. The right tie rod overlaps with the mounting bolt of the car door shutter. The door knife moves with the shutter door pulley assembly, and during the movement, the door operator hook engages or disengages with the door lock roller on the landing door to open and close the landing door. The adjusting baffle limits and blocks the movement of the door operator hook, and the adjusting bolt adjusts the position of the door operator hook, thus affecting the cooperation between the door knife and related components.

[0013] The door knife operating structure allows the right tie rod to be rotated and released by loosening the adjusting bolt and removing the rubber block, thus enabling the installation of the car door shutter mounting bolts or adjusting shims without removing the entire door knife.

[0014] As a further improvement to the technical solution of the present invention, a linkage device adjustment component is also included. The linkage device adjustment component is installed on the shutter pulley assembly. It precisely controls the tension of the linkage device wire rope by operating the bolts to ensure the accuracy and stability of the entire door machine system. The linkage device tension adjustment structure changes the constraint on the linkage device wire rope by changing the degree of screwing in or out of the bolts, thereby adjusting its tension and affecting the linkage effect between the shutter pulley assembly and the slow shutter pulley assembly.

[0015] As a further improvement to the technical solution of the present invention, the door knife and the shutter door pulley assembly are connected by bolt fasteners. A transverse elongated hole is provided on the bottom plate of the door knife for adjusting the transverse installation position of the door knife. A square hole is also provided on the bottom plate of the door knife for inserting a shim from the front of the door operator to adjust the relative positional relationship between the door knife, the door operator, and the door lock roller, so as to achieve precise cooperation between the various components of the door operator system. The door knife is fixed to the shutter door pulley assembly by bolt fasteners. The transverse elongated hole allows for the adjustment space of the door knife in the transverse direction, while the square hole provides a channel for inserting the shim, which facilitates the adjustment of the relative position of the door knife and other components in the vertical direction.

[0016] As a further improvement to the technical solution of the present invention, the door opening limiting component includes a limiting baffle fixed on the door operator guide rail and a buffer block with adjustable position; the limiting baffle limits the maximum opening range of the door by mechanical blocking, and the buffer block is connected to the door operator guide rail by an elastic element, so that it can contact the door pulley assembly and provide a buffering effect when the door is opened to near the maximum range, thereby reducing impact and noise.

[0017] As a further improvement to the technical solution of the present invention, the operation of the door motor drives the belt drive, which causes the fast door pulley assembly to move. The displacement of the fast door pulley assembly drives the slow door pulley assembly to move synchronously through the steel wire rope of the linkage device. At the same time, the movement of the fast door pulley assembly drives the door lock roller on the landing door to move through the door knife, thereby realizing the opening and closing action sequence of the elevator side door operator.

[0018] Compared with traditional technologies, the present invention has the following significant advantages:

[0019] Compact structure and optimized space:

[0020] By placing the door motor inside the mounting base and carefully designing the relative positions of various components such as the door operator guide rails and linkage devices with the door motor, the entire door operator structure becomes more compact. For example, the linkage device's pulley is arranged perpendicular to the back of the mounting base, avoiding interference with the door motor during door opening. This allows the door motor to be placed as low as possible, effectively reducing the overall height of the mounting base. This not only reduces material usage and production costs but also has less impact on the elevator's top floor height, increasing the flexibility of elevator design, especially suitable for elevator shaft installation scenarios with limited space.

[0021] Improved protection performance:

[0022] The bent edge above the mounting base effectively prevents cement, mud, and dust from falling into the internal component installation area, significantly reducing the risk of damage or malfunction of critical components such as the door motor and belts due to external impurities. Compared with traditional door operators with externally mounted motors and no protection, this greatly reduces the equipment failure rate caused by environmental factors, improves the reliability and stability of the door operator, reduces the frequency and cost of elevator maintenance, and ensures the safe and continuous operation of the elevator.

[0023] Easy installation and maintenance:

[0024] The unique design of the door switch assembly brings great convenience. The overlapping portion of its right tie rod and the car door shutter mounting bolts utilizes a releasable structure. Loosening the adjusting bolts and removing the rubber block allows the right tie rod to rotate and release, enabling engineering and maintenance personnel to install the car door shutter mounting bolts or adjusting shims without removing the entire door switch assembly. This design greatly simplifies the operation process, avoiding the tedious dimensional adjustments required in traditional door switch removal and restoration, significantly reducing the workload of engineering and maintenance personnel, improving work efficiency, shortening the elevator installation and maintenance cycle, lowering labor costs, and also reducing the risk of door operator malfunctions due to improper door switch restoration.

[0025] Precise coordination and stable operation:

[0026] The linkage device and its related adjustment structure ensure precise linkage between the various moving parts of the door operator. The tension adjustment structure of the linkage device, operated via bolts, allows for precise control of the tension of the steel wire rope, making the coordinated movement between the fast and slow door pulley assemblies more accurate and stable. During the elevator door opening and closing process, the various components operate collaboratively according to their designed connections and interactions, ensuring smooth and stable door opening and closing without jamming or abnormal shaking. This improves the comfort and safety of the elevator ride, while also reducing wear and tear and potential malfunctions caused by uncoordinated component movement, thus extending the service life of the door operator. Attached Figure Description

[0027] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the structure of an elevator side-opening door operator (including door knife) according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of an elevator side-opening door operator (excluding the door knife) according to an embodiment of the present invention;

[0030] Figure 3 for Figure 2 AA section view;

[0031] Figure 4 This is a schematic diagram of the door knife structure according to an embodiment of the present invention;

[0032] Figure 5 for Figure 4 DD sectional view;

[0033] Figure 6 This is a schematic diagram of the first step of releasing the right linkage rod according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the second step of releasing the right tie rod according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of step three of the right-hand linkage release operation in an embodiment of the present invention.

[0036] In the attached diagram: 1-Mounting base plate; 2-Belt; 3-Tensioning device; 4-Connecting cam groove; 5-Lock seat; 6-Door motor; 7-Door operator guide rail; 8-Fast door pulley assembly; 9-Slow door pulley assembly; 10-Door opening force holding device; 11-Linkage device; 12-Door knife; 13-Linkage device adjusting assembly; 14-Limit baffle; 121-Door operator lock hook; 122-Adjusting baffle; 123-Adjusting bolt; 124-Right connecting rod; 125-Left connecting rod; 126-Crossbar; 127-Rubber block. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] In this invention, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this invention.

[0041] The present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Please see Figures 1 to 5 This invention provides a technical solution: an elevator side-opening door operator, comprising a basic structural component and an action execution component, wherein:

[0043] The infrastructure components include:

[0044] The mounting base plate 1 has a bent edge at the top and houses a door motor 6 for power generation, a belt 2 for power transmission, a tensioning device 3 for adjusting the belt 2's tension, a cam groove 4 for specific mechanical connections, and a lock seat 5. The bent edge prevents external cement, mud, and dust from falling into the internal component installation area. The output shaft of the door motor 6 is connected to one end of the belt 2, and the other end of the belt 2 bypasses the cam groove 4 and is kept under tension by the tensioning device 3, thus establishing a power transmission link within the mounting base plate 1. The lock seat 5, door motor 6, and cam groove 4 together form the basic power and connection structure within the mounting base plate 1. The door motor 6 is positioned far from the door side within the mounting base plate 1 to prevent spatial interference between other components related to the door opening action. It should be noted that by arranging the door motor 6 inside the mounting base plate 1 and carefully designing the relative positions of various components such as the door operator guide rail and linkage device with the door motor 6, the entire door operator structure is made more compact. For example, the rope pulley of the linkage device is arranged perpendicularly to the back of the mounting base plate 1, avoiding interference with the door motor 6 during door opening. This allows the door motor 6 to be installed as low as possible, effectively reducing the overall height of the mounting base plate 1. This not only reduces material usage and production costs but also has less impact on the elevator's top floor height, increasing the flexibility of elevator design, especially suitable for elevator shaft installation scenarios with limited space. The bent edge above the mounting base plate 1 effectively prevents cement, mud, and dust from falling into the internal component installation area, significantly reducing the risk of damage or failure of critical components such as the door motor 6 and belt 2 due to external impurities. Compared with traditional door operators with externally mounted motors and no protection, this greatly reduces the equipment failure rate caused by environmental factors, improves the reliability and stability of the door operator, reduces the frequency and cost of elevator maintenance, and ensures the safe and continuous operation of the elevator.

[0045] Specifically, in this solution, the action execution component includes:

[0046] The door operator guide rail 7 is vertically fixed on the mounting base plate 1, and there are two of them. The door operator guide rail 7 is respectively provided with a door opening limit component for limiting the door opening range, a fast shutter door pulley assembly 8 that constitutes the fast shutter motion system, a slow shutter door pulley assembly 9 that constitutes the slow shutter motion system, and a door opening force holding device 10 for maintaining the stability of the door opening force. The fast shutter door pulley assembly 8 and the slow shutter door pulley assembly 9 can slide along the door operator guide rail 7 by means of the pulleys engaging with the door operator guide rail 7. The door opening limit component limits its sliding stroke by means of mechanical blocking. The door opening force holding device 10 interacts with the fast shutter door pulley assembly 8 and the slow shutter door pulley assembly 9 by means of the spring or magnetic attraction force to maintain the force balance in the open state.

[0047] The linkage device 11 is installed on the slow door pulley assembly 9 and is connected to the fast door pulley assembly 8 via a steel wire rope. The steel wire rope clamping plate of the linkage device 11 is fixed to the mounting base plate 1 by bolts. The rope wheel of the linkage device 11 is arranged perpendicularly to the back of the mounting base plate 1 to ensure the coordination and non-interference of the movement of each component during the operation of the door motor. When the slow door pulley assembly 9 moves, the linkage device 11 drives the fast door pulley assembly 8 to perform corresponding coordinated movement through the traction of the steel wire rope. Its perpendicular arrangement with the mounting base plate 1 ensures that it will not collide or interfere with the door motor 6 during the movement.

[0048] Specifically, this solution also includes a door knife assembly, which comprises:

[0049] Door knife 12 is mounted on the shutter door pulley assembly 8. Door knife 12 includes a door operator lock hook 121, an adjusting baffle 122, an adjusting bolt 123, a right engagement rod 124, a left engagement rod 125, a crossbar 126, and a rubber block 127. The adjusting baffle 122 is mounted on the right engagement rod 124 and serves to limit and block the door operator lock hook 121 during its movement. The adjusting bolt 123 is screwed onto the door knife base plate, and its position can be adjusted to change the position of the door operator lock hook 121. One end of the crossbar 126 is connected to the left engagement rod. One end of the crossbar 125 is connected to the other end of the door operator lock hook 121; the right tie rod 124 overlaps with the mounting bolt of the car door shutter; the door knife 12 moves with the shutter door pulley assembly 8, and during the movement, the door door is opened and closed by the door operator lock hook 121 engaging or disengaging with the door lock roller on the landing door; the adjusting baffle 122 plays a limiting and blocking role during the movement of the door operator lock hook 121; the adjusting bolt 123 can adjust the position of the door operator lock hook 121, thereby affecting the cooperation between the door knife 12 and related components;

[0050] The door knife operating structure allows the right locking rod 124 to be rotated and released by loosening the adjusting bolt 123 and removing the rubber block 127. This enables the installation of the car door shutter mounting bolts or adjusting shims without removing the entire door knife 12. It should be noted that the unique design of the door knife assembly brings great convenience. (Refer to...) Figures 6 to 8 The overlapping portion of the right tie rod 124 and the car door shutter mounting bolts is designed to be releasable. By loosening the adjusting bolt 123 and removing the rubber block 127, the right tie rod 124 can be rotated and released. This allows engineering and maintenance personnel to install the car door shutter mounting bolts or adjusting shims without removing the entire door knife. This design greatly simplifies the operation process, avoids the tedious dimensional adjustments required in traditional door knife removal and restoration, significantly reduces the workload of engineering and maintenance personnel, improves work efficiency, shortens the elevator installation and maintenance cycle, lowers labor costs, and also reduces the risk of door operator malfunctions caused by improper door knife restoration.

[0051] Specifically, this solution also includes a linkage device adjustment component 13, which is installed on the shutter pulley assembly 8. It precisely controls the tension of the linkage device's wire rope through bolt operation to ensure the accuracy and stability of the entire door machine system's movement. The linkage device tension adjustment structure changes the constraint on the linkage device's wire rope by altering the degree of bolt screwing in or out, thereby adjusting its tension and influencing the linkage effect between the shutter pulley assembly 8 and the slow shutter pulley assembly 9. It should be noted that the linkage device 11 and its related adjustment structure ensure precise linkage between the various moving parts of the door machine. The linkage device tension adjustment structure, through bolt operation, precisely controls the tension of the linkage device's wire rope, making the coordinated movement between the shutter pulley assembly 8 and the slow shutter pulley assembly 9 more accurate and stable. During the elevator door opening and closing process, the various components work together according to the designed connection and interaction relationships, which can ensure that the door opens and closes smoothly and without jamming or abnormal shaking, improving the comfort and safety of elevator rides. At the same time, it also reduces wear and tear and potential malfunctions caused by uncoordinated movement of components, and extends the service life of the door operator.

[0052] Specifically, in this solution, the door knife 12 and the shutter door pulley assembly 8 are connected by bolt fasteners. The bottom plate of the door knife has a horizontal elongated hole for adjusting the horizontal installation position of the door knife. The bottom plate of the door knife also has a square hole for inserting a shim from the front of the door operator to adjust the relative position between the door knife, the door operator, and the door lock roller, so as to achieve precise cooperation between the various components of the door operator system. The door knife is fixed to the shutter door pulley assembly 8 by bolt fasteners. The horizontal elongated hole allows for the adjustment space of the door knife 12 in the horizontal direction, while the square hole provides a channel for inserting the shim, which facilitates the adjustment of the relative position of the door knife 12 and other components in the vertical direction.

[0053] Specifically, in this solution, the door opening limiting component includes a limiting baffle 14 fixed on the door operator guide rail 7 and an adjustable buffer block; the limiting baffle 14 limits the maximum opening range of the door by mechanical blocking, and the buffer block is connected to the door operator guide rail 7 through an elastic element, so that it can contact the door pulley assembly and provide a buffering effect when the door is opened to near the maximum range, thereby reducing impact and noise.

[0054] Specifically, in this solution, the door motor 6 drives the belt 2 to drive the transmission, and the belt 2 causes the fast door pulley assembly 8 to move. The displacement of the fast door pulley assembly 8 is driven by the steel wire rope of the linkage device 11 to drive the slow door pulley assembly 9 to move synchronously. At the same time, the movement of the fast door pulley assembly 8 drives the door lock roller on the landing door to move through the door knife 12, thereby realizing the opening and closing action sequence of the elevator side door operator.

[0055] Example:

[0056] An innovative elevator side-opening door operator mainly consists of basic structural components and motion execution components. The connection and cooperation methods of each component and its internal parts are as follows:

[0057] Basic structural components:

[0058] The mounting base plate 1 features a carefully designed bent edge, cleverly housing the door motor 6, belt 2, tensioning device 3, engagement cam groove 4, and lock seat 5. The output shaft of the door motor 6 is tightly connected to one end of the belt 2. The other end of the belt 2, after passing through the engagement cam groove 4, is precisely maintained at the appropriate tension by the tensioning device 3, thus establishing a stable and reliable power transmission link within the mounting base plate 1. Simultaneously, the lock seat 5, door motor 6, and engagement cam groove 4 work together to form a robust basic power and connection structure within the mounting base plate 1. Crucially, the door motor 6 is strategically positioned far from the door side within the mounting base plate 1, effectively preventing spatial interference from other components related to the door opening action, thus laying the foundation for a compact layout of the entire door operator system.

[0059] Action execution component:

[0060] The door operator guide rail 7 is vertically fixed to the mounting base plate 1 by a secure method such as welding or bolting, and the number of two rails is precisely set. Several key components are systematically installed on the door operator guide rail 7, including a door opening limit component for precisely limiting the door opening range, a shutter door pulley assembly 8 which forms the core of the shutter movement system, a slow shutter door pulley assembly 9 which forms the core of the slow shutter movement system, and a door opening force holding device 10 for maintaining a stable door opening force. Among them, the shutter door pulley assembly 8 and the slow shutter door pulley assembly 9 can slide smoothly on the door operator guide rail 7 by the pulleys being tightly fitted to the door operator guide rail 7, while the door opening limit component strictly limits its sliding stroke by mechanical blocking. The door opening force holding device 10 interacts cleverly with the shutter door pulley assembly 8 and the slow shutter door pulley assembly 9 by means of spring or magnetic attraction, thereby ensuring that a stable force balance is maintained when the door is open.

[0061] The linkage device 11 is installed on the slow shutter pulley assembly 9, and it is tightly connected to the fast shutter pulley assembly 8 via a steel wire rope. The steel wire rope clamping plate of the linkage device 11 is securely fixed to the mounting base plate 1 with bolts. The rope wheel of the linkage device 11 is arranged perpendicularly to the back of the mounting base plate 1. This unique layout has several important advantages. During the operation of the door machine, when the slow shutter pulley assembly 9 moves, the linkage device 11 can precisely pull the fast shutter pulley assembly 8 to perform corresponding coordinated movements through the precise traction of the steel wire rope. Simultaneously, due to its perpendicular arrangement to the mounting base plate 1, it effectively avoids collisions and interference with the door motor 6 during movement, ensuring the coordination and interference-free operation of the entire door machine system.

[0062] Door knife assembly:

[0063] The door knife 12 is securely mounted on the shutter door pulley assembly 8 via bolts. The door knife 12 comprises several key components, such as the door operator lock hook 121, adjusting baffle 122, adjusting bolt 123, right tie rod 124, left tie rod 125, crossbar 126, and rubber block 127. The adjusting baffle 122 is precisely mounted on the right tie rod 124 via a slot or pin connection. The adjusting bolt 123 is screwed onto the door knife base plate, and the right tie rod 124 overlaps with the mounting bolt of the car door shutter. During door operator operation, the door knife 12 moves with the shutter door pulley assembly 8. During this movement, the door operator lock hook 121 engages or disengages with the door lock roller on the landing door, cleverly achieving the opening and closing of the landing door. Furthermore, the adjusting baffle 122 plays a precise limiting and blocking role during the operation of the door operator lock hook 121, and the adjusting bolt 123 can flexibly adjust the position of the door operator lock hook 121, thereby precisely affecting the cooperation relationship between the door knife 12 and related components.

[0064] A major innovation of this invention lies in its unique door knife operating structure. By loosening the adjusting bolt 123 and removing the rubber block 127, the right tie rod 124 can be rotated and released. This allows engineering and maintenance personnel to conveniently install the car door shutter mounting bolts or adjusting shims without removing the entire door knife 12, greatly simplifying the operation process and improving work efficiency.

[0065] The linkage adjustment component 13, which is the linkage tension adjustment structure installed on the shutter pulley assembly 8, precisely controls the tension of the linkage wire rope through the operation of bolts. By changing the degree to which the bolts are screwed in or out, the constraint on the linkage wire rope can be precisely changed, thereby flexibly adjusting its tension. This directly and effectively affects the linkage effect between the shutter pulley assembly 8 and the slow shutter pulley assembly 9, ensuring the accuracy and stability of the entire door machine system.

[0066] The door knife mounting structure uses bolt fasteners to connect the door knife 12 to the shutter door pulley assembly 8. A transverse elongated hole is provided on the door knife base plate, greatly facilitating the adjustment of the door knife's lateral mounting position. Simultaneously, a square hole is also provided on the door knife base plate, allowing engineers to insert shims from the front of the door operator, thereby flexibly adjusting the relative positions of the door knife 12, the door operator, and the landing lock rollers. This achieves precise coordination between the various components of the door operator system, further enhancing the overall performance of the door operator.

[0067] Working principle:

[0068] The working principle of the elevator side-opening door operator of this invention is based on the close cooperation and coordinated operation of various components. When the door motor 6 receives the running command, it starts to operate, and its output shaft drives the belt 2 for transmission. The transmission of the belt 2 causes the fast door pulley assembly 8 to move. The displacement of the fast door pulley assembly 8, through the steel wire rope of the linkage device 11, precisely drives the slow door pulley assembly 9 to move synchronously, thereby realizing the coordinated opening and closing function of the car door fast door and slow door. At the same time, the movement of the fast door pulley assembly 8 also drives the door lock roller on the landing door to move through the door knife 12, thereby realizing the opening and closing action of the landing door. In the entire working process, the various components work together according to the above-mentioned carefully designed connection and interaction relationship. Any change in the action of any component will be quickly transmitted to other related components through the connection and interaction relationship, so that the door operator system, as a highly integrated and coordinated whole, can efficiently and stably complete the opening and closing function of the elevator side-opening door.

[0069] In summary, this invention, through its unique structural design and layout, effectively overcomes the height and protection issues caused by the motor arrangement in existing side-opening elevator door operators, as well as the increased workload caused by door knife obstruction operations. It significantly improves the overall performance, installation and maintenance efficiency, and operational reliability of the elevator door operator, and has broad market application prospects and significant economic benefits. It is expected to trigger positive changes and innovations in the field of elevator technology.

[0070] The technical solutions provided by the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the embodiments above are only for helping to understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A side-opening door operator for an elevator, comprising a basic structural component and an action execution component, characterized in that: The infrastructure components include: The mounting base plate has a bent edge on top and houses a door motor for power generation, a belt for power transmission, a tensioning device for belt tension adjustment, a cam groove for specific mechanical connections, and a lock seat. The bent edge prevents external cement, mud, and dust from falling into the internal component installation area. The output shaft of the door motor is connected to one end of the belt, and the other end of the belt bypasses the cam groove and is kept under tension by the tensioning device, thus establishing a power transmission link inside the mounting base plate. The lock seat, door motor, and cam groove together form the basic power and connection structure within the mounting base plate. The door motor is located far away from the door side inside the mounting base plate to prevent spatial interference between other components related to the door opening action. It also includes a door knife assembly, the door knife assembly comprising: The door knife is mounted on the shutter door pulley assembly. It includes a door operator hook, an adjusting baffle, an adjusting bolt, a right tie rod, a left tie rod, a crossbar, and a rubber block. The adjusting baffle is mounted on the right tie rod and serves to limit and block the movement of the door operator hook. The adjusting bolt is screwed onto the door knife base plate, and its position can be adjusted to change the position of the door operator hook. One end of the crossbar is connected to one end of the left tie rod, and the other end is connected to one end of the door operator hook. The right tie rod overlaps with the mounting bolt of the car door shutter. The door knife moves with the shutter door pulley assembly. During movement, the door operator hook engages or disengages with the door lock roller on the landing door to open and close the landing door. The adjusting baffle limits and blocks the movement of the door operator hook, and the adjusting bolt adjusts the position of the door operator hook, thus affecting the cooperation between the door knife and related components. The door knife operating structure allows the right tie rod to be rotated and released by loosening the adjusting bolt and removing the rubber block, thus enabling the installation of the car door shutter mounting bolts or adjusting shims without removing the entire door knife.

2. The elevator side-opening door operator according to claim 1, characterized in that: The action execution component includes: The door operator guide rail consists of two rails vertically fixed to the mounting base. Each guide rail is equipped with an opening limit component to restrict the door opening width, a shutter pulley assembly forming the fast shutter motion system, a slow shutter pulley assembly forming the slow shutter motion system, and an opening force holding device to maintain stable opening force. The fast and slow shutter pulley assemblies can slide along the guide rails by engaging with the pulleys. The opening limit component restricts their sliding stroke through mechanical blocking. The opening force holding device interacts with the fast and slow shutter pulley assemblies using springs or magnetic attraction to maintain force balance in the open state. A linkage device is installed on the slow door pulley assembly and is connected to the fast door pulley assembly via a steel wire rope. The steel wire rope clamping plate of the linkage device is fixed to the mounting base plate with bolts. The rope wheel of the linkage device is arranged perpendicularly to the back of the mounting base plate to ensure the coordination and non-interference of the movement of each component during the operation of the door motor. When the slow door pulley assembly moves, the linkage device drives the fast door pulley assembly to perform corresponding coordinated movement through the traction of the steel wire rope. Its perpendicular arrangement with the mounting base plate ensures that it will not collide or interfere with the door motor during the movement.

3. The elevator side-opening door operator according to claim 1, characterized in that: It also includes a linkage device adjustment component, which is installed on the shutter pulley assembly. The adjustment component precisely controls the tension of the linkage device wire rope by operating the bolts to ensure the accuracy and stability of the entire door machine system. The linkage device tension adjustment structure changes the constraint on the linkage device wire rope by changing the degree of screwing in or out of the bolts, thereby adjusting its tension and affecting the linkage effect between the shutter pulley assembly and the slow shutter pulley assembly.

4. The elevator side-opening door operator according to claim 1, characterized in that: The door knife and the shutter door pulley assembly are connected by bolt fasteners. The bottom plate of the door knife has a horizontal elongated hole for adjusting the horizontal installation position of the door knife. The bottom plate of the door knife also has a square hole for inserting a shim from the front of the door operator to adjust the relative position of the door knife, the door operator, and the door lock roller, so as to achieve precise cooperation between the various components of the door operator system. The door knife is fixed to the shutter door pulley assembly by bolt fasteners. The horizontal elongated hole allows for the adjustment space of the door knife in the horizontal direction, while the square hole provides a channel for inserting shims, which facilitates the adjustment of the relative position of the door knife and other components in the vertical direction.

5. The elevator side-opening door operator according to claim 2, characterized in that: The door opening limiting component includes a limiting baffle fixed on the door operator guide rail and an adjustable buffer block. The limiting baffle limits the maximum opening range of the door by mechanical blocking, and the buffer block is connected to the door operator guide rail by an elastic element. It can contact the door pulley assembly and provide a buffering effect when the door is opened to near its maximum range, thereby reducing impact and noise.

6. The elevator side-opening door operator according to claim 1, characterized in that: The operation of the door motor drives the belt drive, which causes the fast door pulley assembly to move. The displacement of the fast door pulley assembly is driven by the steel wire rope of the linkage device to move the slow door pulley assembly synchronously. At the same time, the movement of the fast door pulley assembly drives the door lock roller on the landing door to move through the door knife, thereby realizing the opening and closing action sequence of the elevator side door operator.

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