Implementation method for preventing inclination when elevator loads and unloads heavy-load goods
By adding pre-embedded hoist hooks on the elevator shaft wall and setting hook plates on the car cross beam, and tightening with a handboard hoist, the problems of tilt, sinking and upward jumping when loading and unloading large load cargoes are solved, the stability and speed of loading and unloading are improved, and the loading and unloading accuracy requirements for large load cargoes are met.
Patent Information
- Application Number
- CN202311593844.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-27
- Publication Date
- 2025-05-27
AI Technical Summary
The existing elevator technology can easily cause the car to tilt, sink or jump up when loading and unloading large loads of goods, which may damage the elevator equipment or cause personal injury. The loading and unloading process requires frequent activation of the micro-moving flatbed function, which takes a long time.
By adding pre-embedded hoist hooks on both sides of the elevator shaft wall, and setting hook plates on the car cross beam, and tightening with a handboard hoist, large-load cargo can quickly enter or leave the elevator car, and avoid the car sinking or jumping up.
Effectively prevent or reduce the tilt, sinking and jumping of the car during loading and unloading of large-load cargoes, improve the stability, strength and speed of elevator loading and unloading, meet the loading and unloading accuracy requirements of large-load cargoes, and enhance product competitiveness.
Smart Images
Figure CN120039745A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of elevators, in particular to a method for preventing an elevator from tilting when loading and unloading heavy-load goods. Background Art
[0002] Under the existing technology, when a heavy load is loaded and unloaded in an elevator car, the elongation of the wire rope will change and the car will tilt when the heavy load enters and exits the car. When a heavy object enters the elevator car, the elevator car will tilt and sink to a certain extent; when a heavy object leaves the elevator car, the elevator will also tilt and jump to a certain extent. Elevators with micro-leveling function will trigger this function when sinking and jumping occur, and correct the plumb bob distance between the car sill and the floor door sill to ensure the accuracy of the elevator's leveling.
[0003] Under normal circumstances, the leveling accuracy of the car should be ±10mm. If the leveling accuracy exceeds ±20mm (for example, during loading and unloading), it should be corrected to ±10mm. Figure 1 shown):
[0004] ①A small amount of heavy objects enter the elevator car.
[0005] ② When the car sinks 10mm to 20mm, the elevator micro-leveling function begins to work, and the vertical distance between the elevator sill and the floor door sill decreases.
[0006] ③The car returns to the level position, and then more of the heavy object is allowed to enter the car, and the process is repeated until the entire heavy object enters the car.
[0007] Note: Leveling accuracy: The vertical distance between the elevator car sill and the floor door sill during elevator loading and unloading.
[0008] exist Figure 1 During the loading and unloading process of heavy cargo shown in the figure, the loading and unloading time is long, and the gravity of the heavy cargo is pressed on the front end of the car for a long time, which may cause the car to tilt, sink or jump up to a certain extent, and may cause damage to the car guide shoes, guide rails, etc.; and Figure 1 The loading and unloading process shown is an ideal state. In actual operation, it is difficult to accurately control the amount of heavy objects entering and leaving the car. The car may sink instantly when the heavy objects are loaded, or jump up instantly when the heavy objects are unloaded, which may cause damage to the car or the door sill. In more serious cases, the tilt of the heavy objects may cause personal injury. Heavy objects need to be loaded and unloaded intermittently, and the micro-leveling function needs to be started frequently. Each time it is started, the cargo loading and unloading process needs to be paused, which is very time-consuming. Summary of the invention
[0009] In view of the problems existing in the prior art methods, the purpose of the present invention is to provide a method for preventing the tilting of elevators when loading and unloading heavy loads. Without increasing the weight of the elevator system and the number of steel ropes, the method can prevent or greatly reduce the tilting, sinking and jumping caused by loading and unloading heavy loads using the elevator car, improve the loading and unloading stability, strength and loading and unloading speed of the elevator, meet the loading and unloading accuracy requirements of heavy loads, and improve product competitiveness.
[0010] The present invention is achieved through the following technical solutions:
[0011] A method for preventing a heavy-load cargo from tilting when loading and unloading the cargo in an elevator, the device used in the method comprises a heavy-load elevator car, a pre-embedded hook in a shaft and a hand hoist; the heavy-load elevator car is suspended in the elevator shaft by a steel wire rope; the pre-embedded hook in the shaft comprises a first pre-embedded hook in the shaft, a second pre-embedded hook in the shaft, a third pre-embedded hook in the shaft and a fourth pre-embedded hook in the shaft; the first pre-embedded hook in the shaft and the second pre-embedded hook in the shaft are respectively arranged on one side of the elevator shaft wall, and the third pre-embedded hook in the shaft and the fourth pre-embedded hook in the shaft are respectively arranged on the other side of the elevator shaft wall; the hand hoist comprises a first hanging hand hoist, a second hanging hand hoist, a first tensioning hand hoist and a second tensioning hand hoist; the heavy-load cargo A car crossbeam is provided on the top of the load-carrying elevator car; a first hook plate and a second hook plate are provided at both ends of the car crossbeam respectively; a hook at one end of the first hanging hand plate hoist is installed on the first shaft embedded hook, and a hook at the other end is installed on the first hook plate; a hook at one end of the second hanging hand plate hoist is installed on the third shaft embedded hook, and a hook at the other end is installed on the second hook plate; a hook at one end of the first tensioning hand plate hoist is installed on the second shaft embedded hook, and a hook at the other end is installed on the first hook plate; a hook at one end of the second tensioning hand plate hoist is installed on the fourth shaft embedded hook, and a hook at the other end is installed on the second hook plate; the method comprises the following steps:
[0012] Step S1, adding pre-buried hoistway hooks on both sides of the elevator hoistway wall, the pre-buried hoistway hooks include a first pre-buried hoistway hook, a second pre-buried hoistway hook, a third pre-buried hoistway hook and a fourth pre-buried hoistway hook, and the pre-buried hooks are used to fix one end of the hand hoist hook;
[0013] Step S2, before the heavy-loaded cargo enters the elevator car, two people are required to cooperate, one person enters the car to operate the elevator, and then the other person enters the car top, hangs one end hook of the first hanging hand plate hoist on the first shaft embedded hook, and the other end hook is hung on the first hook plate, and one end hook of the second hanging hand plate hoist is hung on the third shaft embedded hook, and the other end hook is hung on the second hook plate; the left and right sides of the heavy-loaded elevator car are tightened by the hand plate hoist, so that the heavy-loaded cargo can quickly enter the elevator car without sinking the car, reducing the stay time of the cargo at the front end of the car, and avoiding the front end of the car from being tilted due to the pressure of heavy objects for a long time; after the heavy-loaded cargo completely enters the elevator car, the personnel on the car top slowly loosen the chains of the first hanging hand plate hoist and the second hanging hand plate hoist, disassemble the first hanging hand plate hoist and the second hanging hand plate hoist, and then exit the car top;
[0014] Step S3, the process of heavy-loaded cargo leaving the elevator car requires the cooperation of two people, one person enters the car to operate the elevator, and then the other person enters the car top, hangs one end hook of the first tensioning hand hoist on the second shaft embedded hook, and the other end hook is hung on the first hook plate; hangs one end hook of the second tensioning hand hoist on the fourth shaft embedded hook, and the other end hook is hung on the second hook plate, and the left and right sides of the heavy-load elevator car are tightened by the hand hoist, so that the heavy-loaded cargo can leave the elevator car quickly without the car jumping, reducing the stay time of the cargo at the front end of the car, and avoiding the front end of the car from being tilted due to the pressure of heavy objects for a long time; after the heavy-loaded cargo completely leaves the elevator car, the personnel on the car top slowly loosen the chains of the first tensioning hand hoist and the second tensioning hand hoist, disassemble the first tensioning hand hoist and the second tensioning hand hoist, and then exit the car top.
[0015] As a further improvement of the technical solution of the present invention, the pre-buried hook in the hoistway can support hanging a weight of 1 to 2 tons.
[0016] The present invention has the following beneficial effects:
[0017] The present invention proposes a method for preventing tilting of heavy-load cargoes during loading and unloading, which prevents or greatly reduces the tilting, sinking and jumping caused by loading and unloading heavy-load cargoes using the elevator car without increasing the weight of the elevator system or the number of steel wire ropes, improves the loading and unloading stability, strength and loading and unloading speed of the elevator, meets the loading and unloading accuracy requirements of heavy-load cargoes, and improves product competitiveness. The device is simple, and only requires pre-embedding hooks on the side walls of the shaft, adding hook plates to the crossbeams on the car, and using two sets of lever hoists to achieve loading and unloading of heavy-load cargoes. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the process of loading and unloading heavy-load cargo using an elevator car in the prior art;
[0019] Figure 2 This is a schematic diagram of the structure of a device for realizing a method for preventing an elevator from tilting when loading and unloading heavy-loaded goods according to an embodiment of the present invention;
[0020] Figure 3 for Figure 2 Schematic diagram on the right.
[0021] In the figure: 1- heavy-load elevator car; 2- embedded hook in the shaft; 3- hand hoist; 4- steel wire rope; 5- elevator shaft wall; 6- car crossbeam; 7- first hook plate; 8- second hook plate; 21- embedded hook in the first shaft; 22- embedded hook in the second shaft; 23- embedded hook in the third shaft; 24- embedded hook in the fourth shaft; 31- first hanging hand hoist; 32- second hanging hand hoist; 33- first tensioning hand hoist; 34- second tensioning hand hoist. DETAILED DESCRIPTION
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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.
[0026] The following is combined with Figure 1-3 The present invention is described in further detail.
[0027] The present invention relates to a method for preventing an elevator from tilting when loading and unloading heavy-load goods:
[0028] The device adopted in the method includes a heavy-load elevator car 1, a pre-embedded hoist hook 2 in a shaft and a hand hoist 3; the heavy-load elevator car 1 is suspended in the elevator shaft by a steel wire rope 4; the pre-embedded hook 2 in the shaft includes a first pre-embedded hook 21 in the shaft, a second pre-embedded hook 22 in the shaft, a third pre-embedded hook 23 in the shaft and a fourth pre-embedded hook 24 in the shaft; the first pre-embedded hook 21 in the shaft and the second pre-embedded hook 22 in the shaft are respectively arranged on one side of the elevator shaft wall 5, and the third pre-embedded hook 23 in the shaft and the fourth pre-embedded hook 24 in the shaft are respectively arranged on the other side of the elevator shaft wall 5; the hand hoist 3 includes a first hanging hand hoist 31, a second hanging hand hoist 32, a first tensioning hand hoist 33 and a second tensioning hand hoist 34; the heavy-load elevator car 1 is provided with a car crossbeam 6 at the top; the first hook plate 7 and the second hook plate 8 are respectively provided at both ends of the car crossbeam 6; one end hook of the first hanging hand plate hoist 31 is installed on the first shaft embedded hook 21, and the other end hook is installed on the first hook plate 7; one end hook of the second hanging hand plate hoist 32 is installed on the third shaft embedded hook 23, and the other end hook is installed on the second hook plate 8; one end hook of the first tensioning hand plate hoist 33 is installed on the second shaft embedded hook 22, and the other end hook is installed on the first hook plate 7; one end hook of the second tensioning hand plate hoist 34 is installed on the fourth shaft embedded hook 24, and the other end hook is installed on the second hook plate 8; the method comprises the following steps:
[0029] Step S1, adding hoistway pre-embedded hooks on both sides of the elevator hoistway wall 5, the hoistway pre-embedded hooks include a first hoistway pre-embedded hook 21, a second hoistway pre-embedded hook 22, a third hoistway pre-embedded hook 23 and a fourth hoistway pre-embedded hook 24, the pre-embedded hooks are used to fix one end of the hand plate hoist; the hoistway pre-embedded hooks can support hanging 1 to 2 tons of weight;
[0030] Step S2, before the heavy-loaded goods enter the elevator car, two people are required to cooperate, one person enters the car to operate the elevator, and then the other person enters the car top, hangs one end hook of the first hanging hand plate hoist 31 on the first shaft embedded hook 21, and the other end hook is hung on the first hook plate 7, and one end hook of the second hanging hand plate hoist 32 is hung on the third shaft embedded hook 23, and the other end hook is hung on the second hook plate 8; the left and right sides of the heavy-loaded elevator car 1 are tightened by the hand plate hoist, so that the heavy-loaded goods can quickly enter the elevator car without sinking the car, reducing the residence time of the goods at the front end of the car, and avoiding the front end of the car from being tilted by the pressure of heavy objects for a long time; after the heavy-loaded goods completely enter the elevator car, the personnel on the car top slowly loosen the chains of the first hanging hand plate hoist 31 and the second hanging hand plate hoist 32, disassemble the first hanging hand plate hoist 31 and the second hanging hand plate hoist 32, and then get out of the car top;
[0031] In step S3, the process of heavy-loaded goods leaving the elevator car requires the cooperation of two people. One person enters the car to operate the elevator, and then the other person enters the car top to hang one end hook of the first tensioning hand hoist 33 on the second shaft embedded hook 22, and the other end hook is hung on the first hook plate 7; one end hook of the second tensioning hand hoist 34 is hung on the fourth shaft embedded hook 24, and the other end hook is hung on the second hook plate 8. The left and right sides of the heavy-load elevator car 1 are tightened by the hand hoist, so that the heavy-loaded goods can quickly leave the elevator car without the car jumping, reducing the stay time of the goods at the front end of the car, and avoiding the front end of the car from being tilted due to the pressure of heavy objects for a long time; after the heavy-loaded goods completely leave the elevator car, the personnel on the car top slowly loosen the chains of the first tensioning hand hoist 33 and the second tensioning hand hoist 34, disassemble the first tensioning hand hoist 33 and the second tensioning hand hoist 34, and then get out of the car top.
[0032] Compared with the existing technology, the present invention has the following beneficial effects:
[0033] The present invention proposes a method for preventing tilting of heavy-load cargoes during loading and unloading, which prevents or greatly reduces the tilting, sinking and jumping caused by loading and unloading heavy-load cargoes using the elevator car without increasing the weight of the elevator system or the number of steel wire ropes, improves the loading and unloading stability, strength and loading and unloading speed of the elevator, meets the loading and unloading accuracy requirements of heavy-load cargoes, and improves product competitiveness. The device is simple, and only requires pre-embedding hooks on the side walls of the shaft, adding hook plates to the crossbeams on the car, and using two sets of lever hoists to achieve loading and unloading of heavy-load cargoes.
[0034] 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. A method for realizing anti-tilting of a large-load elevator during loading and unloading, characterized in that: The device adopted by this method includes a large-load elevator car, embedded hooks in the hoistway, and a hand winch; the large-load elevator car is suspended in the elevator hoistway through a steel wire rope; the embedded hooks in the hoistway include a first embedded hook in the hoistway, a second embedded hook in the hoistway, a third embedded hook in the hoistway, and a fourth embedded hook in the hoistway; the first embedded hook in the hoistway and the second embedded hook in the hoistway are respectively arranged on one side of the elevator hoistway wall, and the third embedded hook in the hoistway and the fourth embedded hook in the hoistway are respectively arranged on the other side of the elevator hoistway wall; the hand winch includes a first hanging hand winch, a second hanging hand winch, a first tensioning hand winch, and a second tensioning hand winch; a car crossbeam is arranged at the top of the large-load elevator car; first hook plates and second hook plates are respectively arranged at both ends of the car crossbeam; one end hook of the first hanging hand winch is installed on the first embedded hook in the hoistway, and the other end hook is installed on the first hook plate; one end hook of the second hanging hand winch is installed on the third embedded hook in the hoistway, and the other end hook is installed on the second hook plate; one end hook of the first tensioning hand winch is installed on the second embedded hook in the hoistway, and the other end hook is installed on the first hook plate; one end hook of the second tensioning hand winch is installed on the fourth embedded hook in the hoistway, and the other end hook is installed on the second hook plate; this method includes the following steps: Step S1, add embedded hooks in the hoistway on both sides of the elevator hoistway wall. The embedded hooks in the hoistway include a first embedded hook in the hoistway, a second embedded hook in the hoistway, a third embedded hook in the hoistway, and a fourth embedded hook in the hoistway. The embedded hooks are used to fix one end hook of the hand winch. Step S2, before the large-load goods enter the elevator car, two people need to cooperate. One person enters the car to operate the elevator to run, and then one person enters the car top. Hang one end hook of the first hanging hand winch on the first embedded hook in the hoistway, and the other end hook on the first hook plate. Hang one end hook of the second hanging hand winch on the third embedded hook in the hoistway, and the other end hook on the second hook plate. The left and right sides of the large-load elevator car are tightened by the hand winch, so that the large-load goods can quickly enter the elevator car without the car sinking, reducing the residence time of the goods at the front end of the car and avoiding tilting of the car front end due to long-term heavy object pressure. After the large-load goods completely enter the elevator car, the personnel on the car top slowly loosen the chains of the first hanging hand winch and the second hanging hand winch, disassemble the first hanging hand winch and the second hanging hand winch, and then get out of the car top. Step S3: During the process of the heavy-load goods leaving the elevator car, two persons are required to cooperate. One person enters the car to operate the elevator, and then another person enters the car top. Hook one end of the first tensioning hand chain hoist to the second embedded hook in the hoistway, and the other end hook to the first hook plate; hook one end of the second tensioning hand chain hoist to the fourth embedded hook in the hoistway, and the other end hook to the second hook plate. The left and right sides of the heavy-load elevator car are tightened by the hand chain hoists, so that the heavy-load goods can quickly leave the elevator car without causing the car to jump up, reducing the residence time of the goods at the front end of the car, and avoiding the inclination of the front end of the car due to long-term oppression by heavy objects. After the heavy-load goods completely leave the elevator car, the person on the car top slowly loosens the iron chains of the first tensioning hand chain hoist and the second tensioning hand chain hoist, disassembles the first tensioning hand chain hoist and the second tensioning hand chain hoist, and then exits the car top.
2. The method for preventing inclination during loading and unloading of heavy loads in an elevator according to claim 1, characterized in that: The embedded hook in the hoistway can support a suspension weight of 1 to 2 tons.