Door machine for side opening door of elevator

Abstract

The invention discloses an elevator side opening door machine which is composed of a base structure and an action execution assembly. In the foundation structure, parts such as the door motor are reasonably arranged in the mounting bottom plate, and the bent edge can prevent impurities. In the action executing assembly, a door opening limiting device, a door pulley assembly, a door opening force maintaining device and the like are arranged on a door machine guide rail, and a linkage device ensures cooperative movement of components. The door knife assembly is unique, the door knife is installed on the shutter door pulley assembly, the operation structure of the door knife enables relevant operation of the car door shutter to be carried out without disassembling the door knife, and the position is convenient to adjust through the door knife installation structure. The problem that motor protection and door vane operation are inconvenient is solved, the structure is compact, installation and maintenance are convenient, and stable and safe operation of an elevator can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of elevator equipment, in particular to an elevator side-opening door machine. Background Art

[0002] In the existing elevator side-opening door machine technology field, there are many technical problems that need to be solved. The traditional motor layout methods are mainly divided into two categories. One is that the motor is arranged outside the installation base plate. Although this method can reduce the height of the installation base plate to a certain extent to save materials, it makes the motor, belt and tensioner completely exposed to the outside without any protection measures. In the actual use environment, it is very susceptible to the invasion of cement, mud and dust falling from above, which not only greatly increases the cleaning workload during installation and maintenance, but also seriously affects the normal operation of the motor, significantly increases the probability of motor failure, and poses a potential threat to the safe and stable operation of the elevator. The second is that the motor is arranged inside the installation base plate. However, since the internal space of the installation base plate is occupied by many other door machine parts, the motor has to be placed in a higher position to avoid these parts, which leads to a significant increase in the overall height of the installation base plate. This not only increases the consumables and production costs, but also may have an adverse effect on the top floor height of the elevator, limiting the application of elevators in some specific building environments.

[0003] In addition, in terms of the installation structure of the door knife and the car door shutter, the door knife of the traditional side-opening door operator is usually fixedly installed on the door opening side, and the shutter also needs to be installed with bolts and adjustment gaskets on the door opening side. The existence of the door knife just blocks the operating space of the engineering and maintenance personnel, so that when performing installation or adjustment operations related to the car door shutter, the engineering and maintenance personnel must first remove the door knife, and then restore the door knife to its original position after the operation is completed. The restoration process of the door knife is extremely complicated and cumbersome, and many dimensional parameters need to be accurately confirmed to ensure that the door opener can resume normal operation. This undoubtedly greatly increases the workload of repeated adjustments for engineering and maintenance personnel, prolongs the installation and maintenance time of the elevator, reduces work efficiency, and also increases the risk of elevator failures due to human operating errors. Summary of the invention

[0004] The purpose of the present invention is to provide an elevator side-opening door machine, which arranges the motor inside the installation base plate, and with the help of a carefully designed door machine structure and space layout planning, realizes a highly compact door machine structure, successfully reduces the height of the installation base plate, thereby reducing costs and reducing the adverse effects on the top floor height. At the same time, the door knife right swing arm of the present invention adopts a unique releasable design mechanism, that is, the door knife does not need to be removed, and only by releasing the right swing arm, it can free up operating space for the installation bolts or adjustment gaskets of the car door shutter, effectively reducing the workload of engineering and maintenance personnel for repeated adjustments.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solution: an elevator side-opening door machine, including a basic structure component and an action execution component, wherein:

[0006] The infrastructure components include:

[0007] A mounting base plate has a bent edge on the top, and is internally provided with a door motor for power generation, a belt for power transmission, a tensioning device for adjusting the belt tension, a cam groove for a specific mechanical connection, and a lock seat, wherein the bent edge is used to prevent external cement, mud, sand 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 maintains tension through the tensioning device, thereby constructing a power transmission link inside the mounting base plate, and the lock seat, the door motor and the cam groove together constitute a basic power and connection structure inside the mounting base plate, and the door motor is located inside the mounting base plate, away from the door side, so as to prevent other components related to the door opening action from interfering with each other in space.

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

[0009] A door machine guide rail, wherein the door machine guide rail is vertically fixed to the mounting base plate and the number of the two rails is such that a door opening limit component for limiting the door opening range, a shutter door pulley assembly constituting a shutter movement system, a slow door pulley assembly constituting a slow door movement system, and a door opening force holding device for maintaining a stable door opening force are respectively arranged on the door machine guide rail; the shutter door pulley assembly and the slow door pulley assembly can slide along the door machine guide rail by means of the pulleys being engaged with the door machine guide rail, and the door opening limit component limits its sliding stroke by means of mechanical blocking, and the door opening force holding device interacts with the shutter door pulley assembly and the slow door pulley assembly by means of the action force of a spring or magnetic attraction to maintain a force balance in the door opening state;

[0010] A linkage device is installed on the slow door pulley assembly, which is connected to the shutter door pulley assembly through a steel wire rope, and the steel wire rope clamping plate of the linkage device is fixed to the mounting base plate by bolts, and the rope pulley of the linkage device is vertically arranged to the back side of the mounting base plate, so as to ensure the coordination and non-interference of the movements of various components during the operation of the door machine; when the slow door pulley assembly moves, the linkage device drives the shutter door pulley assembly to perform corresponding coordinated movement through the traction of the steel wire rope, and its vertical arrangement relationship 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 of the technical solution of the present invention, a door knife assembly is also included, and the door knife assembly includes:

[0012] The door knife is installed on the shutter door pulley assembly, and the door knife includes a door machine lock hook, an adjustment baffle, an adjustment bolt, a right tie rod, a left tie rod, a cross bar and a rubber block; the adjustment baffle is installed on the right tie rod, and is used to play a limit blocking role during the action of the door machine lock hook; the adjustment bolt is installed on the door knife bottom plate in a threaded manner, and the position of the door machine lock hook can be changed by adjusting its position; one end of the cross bar is connected to one end of the left tie rod, and the other end of the cross bar is connected to one end of the door machine lock hook; the right tie rod and the installation bolt position of the car door shutter are overlapped; the door knife moves with the shutter door pulley assembly, and the door door is opened and closed by the door machine lock hook and the door lock roller on the landing door during the movement, and the adjustment baffle plays a limit blocking role during the action of the door machine lock hook, and the adjustment bolt can adjust the door machine lock hook position to affect the matching relationship between the door knife and related components;

[0013] The door knife operating structure can realize rotation release of the right tie rod by loosening the adjusting bolt and removing the rubber block, thereby enabling installation of the mounting bolts or adjusting gaskets of the car door shutter without removing the entire door knife.

[0014] As a further improvement of the technical solution of the present invention, it also includes a linkage device adjustment component, which is installed on the shutter door pulley assembly, and accurately controls the tightness of the linkage device wire rope through the operation of the bolt to ensure the accuracy and stability of the movement 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 bolt, thereby adjusting its tightness, thereby affecting the linkage effect between the shutter door pulley assembly and the slow door pulley assembly.

[0015] As a further improvement on the technical solution of the present invention, the door knife is connected to the shutter door pulley assembly by bolt fasteners, and a transverse oblong hole is provided on the door knife base plate for adjusting the transverse installation position of the door knife. A square hole is also provided on the door knife base plate for inserting a gasket from the front of the door machine to adjust the relative position relationship between the door knife, the door machine and the floor door lock roller, thereby achieving precise coordination between the various components of the door machine system; the door knife is fixed to the shutter door pulley assembly by bolt fasteners, and the transverse oblong hole can be used to provide space for adjusting the displacement of the door knife in the transverse direction, and the square hole provides a channel for inserting the gasket, thereby facilitating the adjustment of the relative position of the door knife and other components in the vertical direction.

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

[0017] As a further improvement of the technical solution of the present invention, the operation of the door motor drives the belt transmission, and the belt transmission causes the shutter door pulley assembly to be displaced. The displacement of the shutter door pulley assembly drives the slow door pulley assembly to move synchronously with the help of the wire rope of the linkage device. At the same time, the movement of the shutter door pulley assembly drives the door lock roller on the floor door to move through the door knife, thereby realizing the door opening and closing action sequence of the elevator side door machine.

[0018] Compared with the traditional technology, the present invention has the following significant beneficial effects:

[0019] Compact structure and space optimization:

[0020] By placing the door motor inside the mounting base plate and carefully designing the relative position relationship between various components such as the door motor rails and linkage devices and the door motor, the entire door motor structure is made more compact. For example, the rope pulley of the linkage device is arranged vertically to the back of the mounting base plate, avoiding interference with the door motor during the door opening action, thereby allowing the door motor to be placed as downward as possible, effectively reducing the overall height of the mounting base plate. This not only reduces the amount of materials used and reduces production costs, but also has less impact on the top floor height of the elevator, increasing the flexibility of elevator design, and is particularly suitable for elevator shaft installation scenarios with limited space.

[0021] Improved protection performance:

[0022] The bent edge above the installation base can effectively prevent cement, sand and dust from falling into the internal component installation area, significantly reducing the risk of damage or failure of key components such as door motors and belts due to the intrusion of external impurities. Compared with traditional door machines with external motors and no protection, it greatly reduces the equipment failure rate caused by environmental factors, improves the reliability and stability of door machines, reduces the maintenance frequency and cost of elevators, and ensures the safe and continuous operation of elevators.

[0023] Convenient installation and maintenance operability:

[0024] The unique design of the door knife assembly brings great convenience. The overlapping part of the right tie rod and the car door shutter mounting bolt is designed with a releasable structure, that is, loosening the adjustment bolt and removing the rubber block to rotate and release the right tie rod, so that engineering and maintenance personnel can install the car door shutter mounting bolts or adjustment gaskets without removing the entire door knife. This design greatly simplifies the operation process, avoids the tedious size adjustment work in the traditional door knife removal and restoration process, significantly reduces the workload of engineering and maintenance personnel, improves work efficiency, shortens the time cycle of elevator installation and maintenance, reduces labor costs, and also reduces the risk of door machine operation failures that may be caused by improper door knife restoration.

[0025] Precise linkage and stable operation:

[0026] The linkage device and its related adjustment structure ensure the precise linkage between the moving parts of the door machine. The linkage device tension adjustment structure can accurately adjust the tightness of the linkage device wire rope through bolt operation, making the coordinated movement between the shutter door pulley assembly and the slow door pulley assembly more precise and stable. During the opening and closing of the elevator door, the various components work together according to the designed connection relationship and interaction relationship, which can ensure that the door opens and closes smoothly without jamming or abnormal shaking, improving the comfort and safety of the elevator ride, while also reducing the wear and failure risks caused by the uncoordinated movement of the components, and extending the service life of the door machine. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

[0033] Figure 6 This is a schematic diagram of the operation of step 1 of releasing the right tie rod according to an embodiment of the present invention;

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

[0035] Figure 8 Schematic diagram of the operation of step three of releasing the right tie rod according to an embodiment of the present invention.

[0036] In the attached drawings: 1-installation base plate; 2-belt; 3-tensioning device; 4-tie cam groove; 5-lock seat; 6-door motor; 7-door machine guide rail; 8-shutter door pulley assembly; 9-slow door pulley assembly; 10-door opening force holding device; 11-linkage device; 12-door knife; 13-linkage device adjustment assembly; 14-limit baffle; 121-door machine lock hook; 122-adjustment baffle; 123-adjustment bolt; 124-right tie rod; 125-left tie rod; 126-cross bar; 127-rubber block. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The exemplary 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 indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features; in addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0042] See also Figures 1 to 5 The present invention provides a technical solution: an elevator side-opening door machine, comprising a basic structure component and an action execution component, wherein:

[0043] The infrastructure components include:

[0044] The mounting base plate 1 has a bent edge on the top, and is provided with a door motor 6 for power generation, a belt 2 for power transmission, a tensioning device 3 for adjusting the tension of the belt 2, a cam groove 4 for specific mechanical connection, and a lock seat 5. The bent edge is used to prevent cement, sand and dust from the outside 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 maintains tension through the tensioning device 3, so as to build a power transmission link inside the mounting base plate 1, and the lock seat 5, the door motor 6, and the cam groove 4 together constitute a basic power and connection structure inside the mounting base plate 1, and the door motor 6 is located far away from the door side inside the mounting base plate 1 to prevent other components related to the door opening action from interfering with each other in space. It should be noted that by arranging the door motor 6 inside the mounting base plate 1 and carefully designing the relative position relationship between various components such as the door machine guide rail, linkage device, etc. and the door motor 6, the entire door machine structure is made more compact. For example, the rope pulley of the linkage device is arranged vertically to the back of the mounting base plate 1, avoiding interference with the door motor 6 in the door opening action, thereby allowing the door motor 6 to be placed downward as much as possible, effectively reducing the overall height of the mounting base plate 1. This not only reduces the amount of materials used and reduces production costs, but also has less impact on the top floor height of the elevator, increases the flexibility of elevator design, and is particularly suitable for elevator shaft installation scenarios with limited space. The bent edge above the mounting base plate 1 can effectively prevent cement, mud, sand and dust from falling into the internal component installation area, significantly reducing the risk of damage or failure of key components such as the door motor 6 and belt 2 due to the intrusion of external impurities. Compared with traditional door machines with external motors and no protection, the equipment failure rate caused by environmental factors is greatly reduced, the reliability and stability of the door machine are improved, the maintenance frequency and cost of the elevator are reduced, and the safe and continuous operation of the elevator is guaranteed.

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

[0046] A door machine guide rail 7, wherein the door machine guide rail 7 is vertically fixed on the mounting base plate 1 and the number of the door machine guide rails 7 is two, and a door opening limit component for limiting the door opening range, a shutter door pulley assembly 8 constituting a shutter movement system, a slow door pulley assembly 9 constituting a slow door movement system, and a door opening force holding device 10 for maintaining a stable door opening force are respectively arranged on the door machine guide rail 7; the shutter door pulley assembly 8 and the slow door pulley assembly 9 can slide along the door machine guide rail 7 by means of the pulleys being engaged with the door machine guide rail 7, and the door opening limit component limits its sliding stroke by means of mechanical blocking, and the door opening force holding device 10 interacts with the shutter door pulley assembly 8 and the slow door pulley assembly 9 by means of the action force of a spring or magnetic attraction to maintain a force balance in the door opening state;

[0047] The linkage device 11 is installed on the slow door pulley assembly 9, and is connected to the shutter door pulley assembly 8 through a steel wire rope, and the steel wire rope clamping plate of the linkage device 11 is fixed to the mounting base plate 1 by bolts, and the rope wheel of the linkage device 11 is arranged vertically to the back side of the mounting base plate 1, so as to ensure the coordination and non-interference of the movement of various components during the operation of the door machine; when the slow door pulley assembly 9 moves, the linkage device 11 drives the shutter door pulley assembly 8 to perform corresponding coordinated movement through the traction of the steel wire rope, and its vertical arrangement relationship with the mounting base plate 1 ensures that it will not collide or interfere with the door motor 6 during the movement.

[0048] Specifically, the present invention further includes a door knife assembly, which includes:

[0049] The door knife 12 is installed on the shutter door pulley assembly 8, and the door knife 12 includes a door machine lock hook 121, an adjustment baffle 122, an adjustment bolt 123, a right tie rod 124, a left tie rod 125, a cross bar 126 and a rubber block 127; the adjustment baffle 122 is installed on the right tie rod 124, and is used to play a role of limiting and blocking during the movement of the door machine lock hook 121; the adjustment bolt 123 is installed on the door knife bottom plate in a threaded manner, and the position of the door machine lock hook 121 can be changed by adjusting its position; one end of the cross bar 126 is connected to the left tie rod The right tie rod 124 and the installation bolt position of the car door shutter overlap each other; the door knife 12 moves with the shutter door pulley assembly 8, and the door lock hook 121 and the door lock roller on the landing door are engaged or disengaged with each other during the movement to realize the opening and closing action of the landing door, and the adjustment baffle 122 plays a role of limiting and blocking during the action of the door machine lock hook 121, and the adjustment bolt 123 can adjust the position of the door machine lock hook 121, thereby affecting the matching relationship between the door knife 12 and related components;

[0050] The door knife operating structure can rotate and release the right tie rod 124 by loosening the adjustment bolt 123 and removing the rubber block 127, so that the installation bolts or adjustment gaskets of the car door shutter can be installed without removing the entire door knife 12. It should be noted that the unique design of the door knife assembly brings great convenience. Figures 6 to 8 The overlapping part of the right tie rod 124 and the car door shutter mounting bolt is designed to be releasable, that is, loosening the adjustment bolt 123 and removing the rubber block 127 to rotate and release the right tie rod 124, so that the engineering and maintenance personnel can install the car door shutter mounting bolts or adjustment gaskets without removing the entire door knife. This design greatly simplifies the operation process, avoids the tedious size adjustment work in the traditional door knife removal and restoration process, significantly reduces the workload of engineering and maintenance personnel, improves work efficiency, shortens the time cycle of elevator installation and maintenance, reduces labor costs, and also reduces the risk of door machine operation failures caused by improper door knife restoration.

[0051] Specifically, the present solution also includes a linkage device adjustment component 13, which is installed on the shutter door pulley assembly 8; the linkage device adjustment component 13 accurately adjusts the tightness 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 tightness, thereby affecting the linkage effect between the shutter door pulley assembly 8 and the slow door pulley assembly 9. It should be noted that the linkage device 11 and its related adjustment structure ensure the precise linkage between the various moving parts of the door machine. The linkage device tension adjustment structure can accurately adjust the tightness of the linkage device wire rope through bolt operation, so that the coordinated movement between the shutter door pulley assembly 8 and the slow door pulley assembly 9 is more precise and stable. During the process of opening and closing the elevator door, the various components work together based on the designed connection and interaction relationships, which can ensure that the door opens and closes smoothly without jamming or abnormal shaking, thereby improving the comfort and safety of elevator riding. At the same time, it also reduces the wear and potential failures caused by uncoordinated movement of components and extends the service life of the door machine.

[0052] Specifically, in the present scheme, the door knife 12 is connected to the shutter door pulley assembly 8 by bolt fasteners, and a transverse oblong hole is provided on the door knife bottom plate for adjusting the transverse installation position of the door knife. A square hole is also provided on the door knife bottom plate for inserting a gasket from the front of the door machine to adjust the relative position relationship between the door knife, the door machine and the floor door lock roller, so as to achieve precise matching between the various components of the door machine system; the door knife is fixed to the shutter door pulley assembly 8 by bolt fasteners, and the transverse oblong hole can be used to make the displacement adjustment space of the door knife 12 in the transverse direction, and the square hole provides a channel for inserting the gasket, so as to facilitate 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 limit component includes a limit baffle 14 fixed on the door machine guide rail 7 and a buffer block with an adjustable position; the limit baffle 14 limits the maximum opening range of the door by mechanical blocking, and the buffer block is connected to the door machine guide rail 7 through an elastic element, and can contact the door pulley assembly when the door is opened to a near maximum range and provide a buffering effect to reduce impact and noise.

[0054] Specifically, in this solution, the operation of the door motor 6 drives the belt 2 to transmit, and the belt 2 transmission causes the shutter door pulley assembly 8 to be displaced. The displacement of the shutter door pulley assembly 8 drives the slow door pulley assembly 9 to move synchronously with the help of the wire rope of the linkage device 11. At the same time, the movement of the shutter door pulley assembly 8 drives the door lock roller on the floor door to move through the door knife 12, thereby realizing the door opening and closing action sequence of the elevator side door machine.

[0055] Example:

[0056] An innovative elevator side-opening door operator is mainly composed of a basic structure component and an action execution component. The connection and cooperation of each component and its internal parts are as follows:

[0057] Infrastructure components:

[0058] The installation base plate 1 has a carefully designed bending edge on the top, and the door motor 6, belt 2, tensioning device 3, cam groove 4 and lock seat 5 are cleverly installed inside. The output shaft of the door motor 6 is tightly connected to one end of the belt 2. After the other end of the belt 2 passes around the cam groove 4, it is accurately maintained in a suitable tension state with the help of the tensioning device 3, thereby building a stable and reliable power transmission link inside the installation base plate 1. At the same time, the lock seat 5 cooperates with the door motor 6 and the cam groove 4 to form a solid basic power and connection structure inside the installation base plate 1. What is particularly critical is that the door motor 6 is reasonably arranged inside the installation base plate 1 at a position far away from the door side, which effectively avoids the mutual interference of other components related to the door opening action in space, laying the foundation for the compact layout of the entire door machine system.

[0059] Action execution component:

[0060] The door machine guide rail 7 is vertically fixed on the installation base plate 1 by welding or bolting, and the number is precisely set to two. A number of key components are orderly installed on the door machine guide rail 7, including a door opening limit component for accurately limiting the door opening range, a shutter door pulley assembly 8 constituting the core of the shutter movement system, a slow door pulley assembly 9 constituting the core of the slow door movement system, and a door opening force holding device 10 for maintaining the stability of the door opening force. Among them, the shutter door pulley assembly 8 and the slow door pulley assembly 9 can slide smoothly on the door machine guide rail 7 by the close fit of the pulleys and the door machine guide rail 7, while the door opening limit component strictly limits its sliding stroke by mechanical blocking, and the door opening force holding device 10 cleverly interacts with the shutter door pulley assembly 8 and the slow door pulley assembly 9 by means of spring or magnetic attraction, so as to ensure that a stable force balance can be maintained in the open state.

[0061] The linkage device 11 is installed on the slow door pulley assembly 9, and establishes a close connection with the shutter door pulley assembly 8 through a steel wire rope, and the steel wire rope clamping plate of the linkage device 11 is firmly fixed to the mounting base plate 1 by bolts. The rope pulley of the linkage device 11 is arranged vertically to the back of the mounting base plate 1. This unique layout has multiple important meanings. During the operation of the door machine, when the slow door pulley assembly 9 moves, the linkage device 11 can drive the shutter door pulley assembly 8 to perform corresponding coordinated movement through the precise traction of the steel wire rope. At the same time, due to its vertical arrangement relationship with the mounting base plate 1, it effectively avoids collision and interference with the door motor 6 during the movement, ensuring the coordination and non-interference of the movement of the entire door machine system.

[0062] Door knife assembly:

[0063] The door knife 12 is firmly mounted on the shutter door pulley assembly 8 by bolt connection. The door knife 12 includes multiple key components, such as the door machine lock hook 121, the adjustment baffle 122, the adjustment bolt 123, the right tie rod 124, the left tie rod 125, the cross bar 126 and the rubber block 127. Among them, the adjustment baffle 122 is accurately mounted on the right tie rod 124 by means of a slot or pin connection, the adjustment bolt 123 is installed on the door knife bottom plate by screwing in, and the right tie rod 124 overlaps with the installation bolt position of the car door shutter. During the operation of the door machine, the door knife 12 moves with the shutter door pulley assembly 8. During the movement, the door machine lock hook 121 and the door lock roller on the landing door are engaged or disengaged with each other, so as to cleverly realize the opening and closing action of the landing door. In addition, the adjustment baffle 122 plays a precise limiting and blocking role during the movement of the door machine lock hook 121, and the adjustment bolt 123 can flexibly adjust the position of the door machine lock hook 121, thereby accurately affecting the matching relationship between the door knife 12 and related components.

[0064] The door knife operating structure is a major innovative highlight of the present invention. By loosening the adjustment bolt 123 and removing the rubber block 127, the right tie rod 124 can be rotated and released, so that the engineering and maintenance personnel can easily install the installation bolts or adjustment gaskets of the car door shutter without removing the entire door knife 12, which greatly simplifies the operation process and improves work efficiency.

[0065] The linkage adjustment assembly 13, i.e., the linkage tension adjustment structure installed on the shutter door pulley assembly 8, accurately adjusts the tension of the linkage wire rope by operating the bolt. By changing the degree of screwing in or out of the bolt, the constraint on the linkage wire rope can be accurately changed, thereby flexibly adjusting its tension state, and then directly and effectively affecting the linkage effect between the shutter door pulley assembly 8 and the slow door pulley assembly 9, ensuring the accuracy and stability of the entire door machine system.

[0066] The door knife installation structure uses bolt fasteners to connect the door knife 12 and the shutter door pulley assembly 8. A transverse oblong hole is provided on the door knife bottom plate. This design provides great convenience for adjusting the transverse installation position of the door knife. At the same time, a square hole is also provided on the door knife bottom plate so that engineers can insert gaskets from the front of the door machine, so as to flexibly adjust the relative position relationship between the door knife 12, the door machine and the floor door lock roller, realize the precise coordination between the various components of the door machine system, and further improve the overall performance of the door machine.

[0067] Working principle:

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

[0069] In summary, the present invention effectively overcomes the height and protection problems caused by the motor arrangement of the existing side-opening elevator door machine and the increased workload caused by the door knife blocking operation through its unique structural design and layout, and significantly improves the overall performance, installation and maintenance efficiency, and operational reliability of the elevator door machine. It has broad market application prospects and significant economic benefits, and 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 are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An elevator side-opening door machine, comprising a basic structure component and an action execution component, characterized in that: The infrastructure components include: A mounting base plate has a bent edge on the top, and is internally provided with a door motor for power generation, a belt for power transmission, a tensioning device for adjusting the belt tension, a cam groove for a specific mechanical connection, and a lock seat, wherein the bent edge is used to prevent external cement, mud, sand 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 maintains tension through the tensioning device, thereby constructing a power transmission link inside the mounting base plate, and the lock seat, the door motor and the cam groove together constitute a basic power and connection structure inside the mounting base plate, and the door motor is located inside the mounting base plate, away from the door side, so as to prevent other components related to the door opening action from interfering with each other in space.

2. The elevator side-opening door operator according to claim 1, characterized in that: The action execution component includes: A door machine guide rail, wherein the door machine guide rail is vertically fixed to the mounting base plate and the number of the two rails is such that a door opening limit component for limiting the door opening range, a shutter door pulley assembly constituting a shutter movement system, a slow door pulley assembly constituting a slow door movement system, and a door opening force holding device for maintaining a stable door opening force are respectively arranged on the door machine guide rail; the shutter door pulley assembly and the slow door pulley assembly can slide along the door machine guide rail by means of the pulleys being engaged with the door machine guide rail, and the door opening limit component limits its sliding stroke by means of mechanical blocking, and the door opening force holding device interacts with the shutter door pulley assembly and the slow door pulley assembly by means of the action force of a spring or magnetic attraction to maintain a force balance in the door opening state; A linkage device is installed on the slow door pulley assembly, which is connected to the shutter door pulley assembly through a steel wire rope, and the steel wire rope clamping plate of the linkage device is fixed to the mounting base plate by bolts, and the rope pulley of the linkage device is vertically arranged to the back side of the mounting base plate, so as to ensure the coordination and non-interference of the movements of various components during the operation of the door machine; when the slow door pulley assembly moves, the linkage device drives the shutter door pulley assembly to perform corresponding coordinated movement through the traction of the steel wire rope, and its vertical arrangement relationship 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 2, characterized in that: Also included is a door knife assembly, the door knife assembly comprising: The door knife is installed on the shutter door pulley assembly, and the door knife includes a door machine lock hook, an adjustment baffle, an adjustment bolt, a right tie rod, a left tie rod, a cross bar and a rubber block; the adjustment baffle is installed on the right tie rod, and is used to play a limit blocking role during the action of the door machine lock hook; the adjustment bolt is installed on the door knife bottom plate in a threaded manner, and the position of the door machine lock hook can be changed by adjusting its position; one end of the cross bar is connected to one end of the left tie rod, and the other end of the cross bar is connected to one end of the door machine lock hook; the right tie rod and the installation bolt position of the car door shutter are overlapped; the door knife moves with the shutter door pulley assembly, and the door door is opened and closed by the door machine lock hook and the door lock roller on the landing door during the movement, and the adjustment baffle plays a limit blocking role during the action of the door machine lock hook, and the adjustment bolt can adjust the door machine lock hook position to affect the matching relationship between the door knife and related components; The door knife operating structure can realize rotation release of the right tie rod by loosening the adjusting bolt and removing the rubber block, thereby enabling installation of the mounting bolts or adjusting gaskets of the car door shutter without removing the entire door knife.

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

5. The elevator side-opening door operator according to claim 3, characterized in that: The door knife and the shutter door pulley assembly are connected by bolt fasteners. A transverse oblong hole is provided on the door knife bottom plate for adjusting the transverse installation position of the door knife. A square hole is also provided on the door knife bottom plate for inserting a gasket from the front of the door machine to adjust the relative position relationship between the door knife, the door machine and the floor door lock roller, so as to achieve precise coordination between the various components of the door machine system. The door knife is fixed to the shutter door pulley assembly by bolt fasteners. The transverse oblong hole can be used to make the displacement adjustment space of the door knife in the transverse direction, and the square hole provides a channel for inserting the gasket, so as to facilitate the adjustment of the relative position of the door knife and other components in the vertical direction.

6. The elevator side-opening door operator according to claim 2, characterized in that: The door opening limit component includes a limit baffle fixed on the door machine guide rail and a buffer block with adjustable position; the limit baffle limits the maximum opening range of the door by mechanical blocking, and the buffer block is connected to the door machine guide rail through an elastic element. When the door is opened to a near maximum range, it can contact the door pulley assembly and provide a buffering effect to reduce impact and noise.

7. The elevator side-opening door operator according to claim 3, characterized in that: The operation of the door motor drives the belt transmission, and the belt transmission causes the shutter door pulley assembly to move. The displacement of the shutter door pulley assembly drives the slow door pulley assembly to move synchronously with the help of the wire rope of the linkage device. At the same time, the movement of the shutter door pulley assembly drives the door lock roller on the landing door to move through the door knife, thereby realizing the door opening and closing action sequence of the elevator side door opening machine.

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