Elevator compensation chain guiding system and elevator

Abstract

The elevator compensation chain guiding system comprises a supporting frame assembly, a guiding wheel assembly, an elevator power supply safety device and a monitoring device, and the supporting frame assembly is installed in an elevator shaft pit; the guide wheel assembly is installed at the upper end of the supporting frame assembly and comprises a guide wheel, an elevator compensation chain winds around the guide wheel, and the two ends of the elevator compensation chain are fixed to an elevator counterweight and the center of the bottom of a lift car respectively. The elevator power supply safety device comprises an elevator power supply safety loop. The monitoring device is connected in the elevator power supply safety circuit in series and is configured to monitor whether an elevator compensation chain is abnormal or not, and when the monitoring device monitors that the elevator compensation chain is abnormal, the elevator power supply safety circuit is disconnected. The elevator compensation chain guiding system has guiding and anti-swing functions and can monitor whether the elevator compensation chain is abnormal or not.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and more specifically, to an elevator compensating chain guiding system, which has guiding and anti-swaying functions and can monitor whether an elevator compensating chain is abnormal. Background Art

[0002] The elevator compensating chain guide device is a component of an elevator. Due to the weight of the traction wire rope itself, the weight of the counterweight side and the car side will change with the height during the up and down movement of the elevator, resulting in imbalance. In order to compensate for the weight difference between the counterweight side and the car side, a compensating chain is hung at the lower end of the counterweight and the car. The compensating chain will swing during the operation of the elevator. The faster the elevator speed and the higher the elevator lifting height, the greater the swing. In order to solve this problem, a guide device is installed at the lower end of the compensating chain, that is, at the bottom pit of the hoistway.

[0003] However, due to the limitations of technology and raw materials, the bending diameters of elevator compensation chains currently on the market are relatively small. If they are used in elevators with larger car widths or car depths, the car will be unbalanced, resulting in poor car running comfort and increased wear of the guide shoes.

[0004] In addition, when the counterweight is pressed to the bottom during elevator operation, the car may easily hit the top.

[0005] During the up and down movement of the elevator, the shaking of the elevator compensation chain will interfere with other components, or due to its own wear, the elevator compensation chain may break. At this time, if the elevator continues to run, it may cause personal injury and damage to the elevator equipment.

[0006] In view of this, there is a need for further improvement of the existing elevator compensating chain guide device.

[0007] The information disclosed in the background technology section of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] The object of the present invention is to provide an elevator compensation chain guide system, which has guiding and anti-swaying functions and can monitor whether the elevator compensation chain is abnormal.

[0009] According to one aspect of the present invention, the present invention provides an elevator compensation chain guide system, which may include: a support frame assembly, a guide wheel assembly, an elevator power supply safety device and a monitoring device, the support frame assembly is installed in the bottom pit of the elevator shaft; the guide wheel assembly is installed to the upper end of the support frame assembly, the guide wheel assembly includes a guide wheel, the elevator compensation chain passes around the guide wheel, and the two ends of the elevator compensation chain are respectively fixed to the bottom center of the elevator counterweight and the car; the elevator power supply safety device includes an elevator power supply safety circuit; the monitoring device is connected in series in the elevator power supply safety circuit, and is configured to monitor whether the elevator compensation chain has an abnormality, and when the monitoring device detects that the elevator compensation chain has an abnormality, the elevator power supply safety circuit is disconnected.

[0010] The aforementioned elevator compensation chain guide system, wherein the support frame assembly may include: two columns and multiple beams, the two columns extend in the vertical direction, and the lower ends of the columns are installed in the elevator shaft pit; multiple beams extend in the horizontal direction and are arranged parallel to each other between the two columns, and the two ends of each beam are respectively connected to the two columns.

[0011] The aforementioned elevator compensation chain guide system, wherein each column may include: two protrusions, two recesses, a long through groove and a plurality of protective brushes, the two protrusions are formed on opposite sides of the upper end of the column; two recesses are formed at the upper end of the column, the guide wheel assembly is arranged in the recess and can move in the vertical direction relative to the recess; the long through groove extends in the vertical direction and has a predetermined width; a plurality of protective brushes are arranged on two opposite sides of the long through groove, and the protective brushes protrude toward the long through groove, a predetermined gap is formed between the two protective brushes facing each other, and the elevator compensation chain passes through the gap; wherein the width of the long through groove is greater than the gap between the two protective brushes.

[0012] The aforementioned elevator compensation chain guide system, wherein the guide wheel assembly may further include: a mounting bracket and a counterweight block, the mounting bracket includes a first rod, a second rod, a third rod and a fourth rod, the first rod, the third rod, the second rod and the fourth rod are connected in sequence to form a rectangular frame structure; the counterweight block is connected to the third rod and the fourth rod on the inner side of the rectangular frame structure; wherein the guide wheel of the guide wheel assembly includes a first guide wheel and a second guide wheel, the first guide wheel and the second guide wheel are rotatably mounted to the third rod and the fourth rod on the inner side of the rectangular frame structure; the axes of the first guide wheel and the second guide wheel are parallel to each other and spaced a predetermined distance from each other; the elevator compensation chain passes through a first side of the first guide wheel and passes through a second side of the second guide wheel.

[0013] The aforementioned elevator compensation chain guide system, wherein the monitoring device may include: a limit switch component and a fracture monitoring component, wherein the limit switch component is configured to monitor whether the elevator compensation chain has a positional abnormality, and when the limit switch component detects that the elevator compensation chain has a positional abnormality, the elevator power supply safety circuit is disconnected; the fracture monitoring component is configured to monitor whether the elevator compensation chain has a fracture, and when the fracture monitoring component detects that the elevator compensation chain has a fracture, the elevator power supply safety circuit is disconnected; wherein, when the elevator power supply safety circuit is disconnected, power supply to the elevator is stopped and the elevator stops running.

[0014] The aforementioned elevator compensation chain guide system, wherein the limit switch assembly is set to two, each limit switch assembly may include: a base and a limit switch, the base is connected to the third rod and the fourth rod of the mounting bracket and can move in the vertical direction with the movement of the guide wheel assembly, the two opposite ends of the base are respectively formed with plug-in grooves, and the two protrusions of the column are respectively inserted into the two plug-in grooves; the limit switch is installed to the base, and when the limit switch moves relative to the column, the limit switch switches to the disconnected state, thereby disconnecting the elevator power supply safety circuit.

[0015] In the aforementioned elevator compensating chain guide system, the fracture monitoring component is arranged at the lower part of the column and is spaced apart from the elevator compensating chain by a predetermined distance below the elevator compensating chain.

[0016] The aforementioned elevator compensation chain guide system, wherein the fracture monitoring component may include: a support plate, an action plate, a trigger plate, a fracture switch and a reset element, wherein the action plate can be rotatably mounted on the support plate, and when the elevator compensation chain breaks, the elevator compensation chain contacts and pushes the action plate to rotate the action plate; the trigger plate is mounted on the support plate and is located on one side of the action plate, and the trigger plate is configured to be pushed to generate movement through the rotation of the action plate; the fracture switch is mounted on the support plate and is located on the side of the trigger plate opposite to the action plate, and the fracture switch is configured to switch to a disconnected state through the movement of the trigger plate, thereby disconnecting the elevator power supply safety circuit; the reset element is mounted on the support plate and is located on the same side of the trigger plate as the fracture switch, and the reset element is configured to reset the trigger plate.

[0017] The aforementioned elevator compensation chain guide system, wherein the guide wheel assembly may further include: a first protective cover and a second protective cover, the first protective cover is mounted to the third rod and the fourth rod, and is configured to at least partially cover the first guide wheel; the second protective cover is mounted to the third rod and the fourth rod, and is configured to at least partially cover the second guide wheel.

[0018] According to another aspect of the present invention, the present invention is intended to provide an elevator, comprising the aforementioned elevator compensating chain guide system.

[0019] The beneficial effects of the present invention are as follows: through the structure of the present invention, the situation of unbalanced loading in the car can be avoided, thereby improving the comfort of the car operation and reducing the wear of the guide shoes. In addition, the shaking and swinging of the elevator compensation chain can be reduced or even eliminated, and the scraping of the elevator compensation chain and the column can be avoided. In addition, when the elevator compensation chain is abnormal, such as abnormal position and breakage, the elevator can be stopped in time to avoid personal injury and damage to the elevator equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of various embodiments of the present invention will be more clearly understood through the following detailed description presented in conjunction with the accompanying drawings, in which:

[0021] Figure 1 It is a perspective schematic diagram of an elevator compensating chain guide system according to an exemplary embodiment of the present invention.

[0022] Figure 2 It is a partial perspective schematic diagram of an elevator compensating chain guide system according to an exemplary embodiment of the present invention.

[0023] Figure 3 It is a perspective schematic diagram of a guide wheel assembly of an elevator compensating chain guide system according to an exemplary embodiment of the present invention.

[0024] Figure 4 It is a perspective schematic diagram of a fracture monitoring assembly of an elevator compensating chain guide system according to an exemplary embodiment of the present invention.

[0025] Figure 5 It is a partially enlarged schematic diagram of an elevator compensating chain guide system according to an exemplary embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1 Support frame assembly

[0028] 11 Column

[0029] 111 Protrusion

[0030] 112 concavity

[0031] 113 Long through groove

[0032] 114 Protective brush

[0033] 115 Limiting groove

[0034] S Gap

[0035] 12 Beam

[0036] 2 Guide wheel assembly

[0037] 22 Mounting bracket

[0038] 221 First rod

[0039] 222 Second rod

[0040] 223 Third member

[0041] 224 Fourth member

[0042] 23 Counterweight

[0043] 21 Guide wheel

[0044] 211 First guide wheel

[0045] 212 Second guide wheel

[0046] 25 First protective cover

[0047] 26 Second protective cover

[0048] 3 Limit switch assembly

[0049] 31 Base

[0050] 311 Insertion groove

[0051] 312 Fastening bolts

[0052] 32 Limit switch

[0053] 321 Limit switch main body

[0054] 322 Roller Part

[0055] 4 Fracture monitoring components

[0056] 41 Boards

[0057] 411 Opening

[0058] 42 Action Board

[0059] 421 Rotating pin

[0060] 43 Trigger Board

[0061] 44 Break Switch

[0062] 45 Reset element

[0063] 6 Elevator compensation chain. DETAILED DESCRIPTION

[0064] It should be understood that the drawings are not drawn to scale, but show various features that illustrate the basic principles of the invention in a slightly simplified manner. In the drawings of the present invention, the same reference numerals represent the same or equivalent parts of the present invention.

[0065] Reference will be made in detail to various embodiments of the present invention, examples of which are shown in the accompanying drawings and are described below. Although the present invention will be described in conjunction with exemplary embodiments of the present invention, it will be understood that this specification is not intended to limit the present invention to those exemplary embodiments. On the contrary, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various alternatives, modifications, equivalents and other embodiments included within the spirit and scope of the present invention as defined in the appended claims.

[0066] The specific structure and function description of the embodiments of the present invention disclosed herein are only used to illustrate the embodiments of the present invention. Without departing from the spirit and important features of the present invention, the present invention can be implemented in many different forms. Therefore, the embodiments of the present invention are disclosed only for the purpose of illustration and should not be construed as limiting the present invention.

[0067] Although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the teachings of the present invention, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0068] Certain terms are used throughout this document to refer to specific system components. As will be appreciated by those skilled in the art, different names may often be used to refer to the same component, and thus this document is not intended to distinguish between components that differ only in name and not in function. In this document, the terms "include," "comprises," and "have" are used in an open format and should therefore be interpreted to mean "including, but not limited to ..."

[0069] Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0070] Figure 1 is a perspective schematic diagram of an elevator compensating chain guide system according to an exemplary embodiment of the present invention, Figure 2 is a partial perspective schematic diagram of an elevator compensating chain guide system according to an exemplary embodiment of the present invention, Figure 3 is a perspective schematic diagram of a guide wheel assembly of an elevator compensating chain guide system according to an exemplary embodiment of the present invention, Figure 4is a perspective schematic diagram of a fracture monitoring assembly of an elevator compensating chain guide system according to an exemplary embodiment of the present invention, Figure 5 It is a partially enlarged schematic diagram of an elevator compensating chain guide system according to an exemplary embodiment of the present invention.

[0071] Reference Figures 1 to 5 The present invention relates to an elevator compensation chain guide system, which comprises: a support frame assembly 1, a guide wheel assembly 2, an elevator power supply safety device and a monitoring device.

[0072] Mate Reference Figure 1 and Figure 2 , the support frame assembly 1 is installed in the elevator shaft pit. The support frame assembly 1 may include two columns 11 and a plurality of beams 12, wherein the two columns 11 extend in the vertical direction, and the lower ends of the columns 11 may be installed in the elevator shaft pit. In the example shown, the lower ends of the columns 11 are fixed to the elevator shaft pit by fastening bolts. The plurality of beams 12 may extend in the horizontal direction and be arranged parallel to each other between the two columns 11, and the two ends of each beam 12 are respectively connected to the two columns 11. In the example shown, four beams 12 are arranged between the two columns 11, but those skilled in the art should understand that the number of beams 12 should not be limited thereto. In actual application, the number of beams 12 can be adjusted arbitrarily, for example, the number of beams 12 can be set to two, six, eight, etc., which will not be repeated here.

[0073] The guide wheel assembly 2 is installed to the upper end of the support frame assembly 1. The guide wheel assembly 2 may include a guide wheel 21. The elevator compensation chain 6 passes around the guide wheel 21. In the example shown, the elevator compensation chain 6 is provided with an outer covering layer. The two ends of the elevator compensation chain 6 are respectively fixed to the bottom center of the elevator counterweight and the car.

[0074] In other words, one end of the elevator compensating chain 6 can be fixed to the bottom center of the car, and the other end of the elevator compensating chain 6 can be fixed to the elevator counterweight.

[0075] In the present invention, one end of the elevator compensation chain 6 can be fixed to the bottom center of the car through the arrangement of the guide wheel assembly 2. Therefore, even if it is applied to an elevator with a large car width or car depth, the car unbalanced load can be avoided, thereby improving the comfort of the car operation and reducing the wear of the guide shoes.

[0076] The elevator power supply safety device includes an elevator power supply safety circuit. When the elevator is operating normally, the elevator power supply safety circuit is closed and power is continuously supplied to the elevator.

[0077] The monitoring device is connected in series in the elevator power supply safety circuit and is configured to monitor whether the elevator compensation chain 6 is abnormal. When the monitoring device detects that the elevator compensation chain 6 is abnormal, the elevator power supply safety circuit is disconnected.

[0078] Furthermore, when the elevator power supply safety circuit is disconnected, power supply to the elevator is stopped and the elevator stops running.

[0079] In the following, the structure of the column 11 will be further described in detail.

[0080] Each column 11 may include: two protrusions 111, two recesses 112, a long through groove 113 and a plurality of protective brushes 114, wherein the two protrusions 111 are formed on opposite sides of the upper end of the column 11 facing each other, the two protrusions 111 are formed in a bent shape, and when viewed from a top view, the two protrusions 111 have a substantially L shape; the two recesses 112 are formed at the upper end of the column 11 and are located between the two protrusions 111, the guide wheel assembly 2 can be arranged in the recess 112 and can move in the vertical direction relative to the recess 112; the long through groove 113 extends in the vertical direction and has a predetermined width; the plurality of protective brushes 114 are arranged on two opposite sides of the long through groove 113, and the protective brushes 114 protrude toward the long through groove 113, a predetermined gap S is formed between the two protective brushes 113 facing each other, and the elevator compensation chain 6 can pass through the gap S; wherein the width of the long through groove 113 is greater than the gap S between the two protective brushes 114.

[0081] Since the gap S between the two protective brushes 114 is smaller than the width of the long through groove 113 , the swing range of the elevator compensation chain 6 can be limited, and the elevator compensation chain 6 can be prevented from scratching against the column 11 , thereby improving durability.

[0082] In the illustrated example, the width of the long through groove 113 in the vertical direction is not constant. More specifically, the width of the middle section of the long through groove 113 is greater than the width of the two end sections.

[0083] According to an exemplary embodiment of the present invention, four protective brushes 114 can be provided on each column 11, two of the four protective brushes 114 are arranged on one side of the long through groove 113, and the other two of the four protective brushes 114 are arranged on the other side of the long through groove 113, and the two protective brushes 114 located on the same side of the long through groove 113 are arranged adjacent to each other in the vertical direction, and the section range formed by the two adjacent protective brushes 114 in the vertical direction is the moving range of the elevator compensation chain 6 when the elevator is operating normally.

[0084] In other words, when the elevator is running normally, the elevator compensation chain 6 always keeps in contact with the protective brush 114 without scratching the column 11.

[0085] In addition, those skilled in the art should understand that the number of protective brushes 114 provided on each column 11 should not be limited thereto, and the specifications of the protective brushes 114 should not be limited thereto. In practical applications, they can be adjusted arbitrarily according to actual conditions, as long as the requirement of preventing the elevator compensation chain 6 from scratching the column 11 under normal operating conditions can be met.

[0086] Mate Reference Figure 3 According to an exemplary embodiment of the present invention, the guide wheel assembly 2 may further include a mounting bracket 22 and a counterweight 23, the mounting bracket 22 including a first rod 221, a second rod 222, a third rod 223 and a fourth rod 224, the first rod 221, the third rod 223, the second rod 222 and the fourth rod 224 are sequentially connected to form a rectangular frame structure; the counterweight 23 is connected to the third rod 223 and the fourth rod 224 on the inner side of the rectangular frame structure.

[0087] More specifically, the counterweight 23 is connected to the third rod 223 and the fourth rod 224 in the middle of the inner side of the rectangular frame structure, and the counterweight 23 can be formed by stacking a plurality of plates. When the elevator is running, the arrangement of the counterweight 23 can reduce or even eliminate the shaking and swinging of the elevator compensation chain 6.

[0088] The counterweight 23 can be made of steel or a composite material.

[0089] When the guide wheel assembly 2 is installed to the upper end of the support frame assembly 1, the third rod 223 and the fourth rod 224 of the mounting bracket 22 of the guide wheel assembly 2 can be respectively placed in the two recesses 112, that is, the third rod 223 can be placed in one of the two recesses 112, and the fourth rod 224 can be placed in the other of the two recesses 112.

[0090] Furthermore, the guide wheel 21 of the guide wheel assembly 2 may include a first guide wheel 211 and a second guide wheel 212, and the first guide wheel 211 and the second guide wheel 212 can be rotatably mounted to the third rod 223 and the fourth rod 224 on the inner side of the rectangular frame structure, and the first guide wheel 211 and the second guide wheel 212 are arranged on both sides of the counterweight block 23; the axes of the first guide wheel 211 and the second guide wheel 212 are parallel to each other and spaced apart from each other by a predetermined distance; the elevator compensation chain 6 passes through the first side of the first guide wheel 211 and passes through the second side of the second guide wheel 212.

[0091] Here, with reference Figure 1 and Figure 3 In the position shown, the left side of the first guide wheel 211 is called the first side of the first guide wheel 211 , and the right side of the second guide wheel 212 is called the second side of the second guide wheel 212 .

[0092] The first guide wheel 211 and the second guide wheel 212 can be made of materials such as cast iron and nylon.

[0093] like Figure 3 As shown in FIG. , the elevator compensation chain 6 can pass through the left side of the first guide wheel 211 , pass through the long through grooves 113 of the two columns 11 , and then pass through the right side of the second guide wheel 212 .

[0094] In addition, the guide wheel assembly 2 may further include: a first protective cover 25 and a second protective cover 26, wherein the first protective cover 25 is mounted to the third rod 223 and the fourth rod 224, and is configured to at least partially cover the first guide wheel 211; the second protective cover 26 is mounted to the third rod 223 and the fourth rod 224, and is configured to at least partially cover the second guide wheel 212.

[0095] By arranging the first protective cover 25 and the second protective cover 26, foreign matter can be prevented from falling into the portion where the elevator compensation chain 6 engages with the first guide wheel 211 and the second guide wheel 212, thereby ensuring that the elevator compensation chain guide system can operate normally.

[0096] The monitoring device may include a limit switch component 3 and a fracture monitoring component 4 .

[0097] The limit switch assembly 3 is configured to monitor whether the elevator compensation chain 6 has a position abnormality. When the limit switch assembly 3 detects that the elevator compensation chain 6 has a position abnormality, the elevator power supply safety circuit is disconnected, thereby stopping the power supply to the elevator and the elevator stops running.

[0098] Specifically, when the car is about to hit the top, the elevator compensation chain 6 has an abnormal position. At this time, the elevator power supply safety circuit is disconnected and the elevator stops running, thereby preventing the car from hitting the top.

[0099] The fracture monitoring component 4 is configured to monitor whether the elevator compensation chain 6 is fractured. When the fracture monitoring component 4 detects that the elevator compensation chain 6 is fractured, the elevator power supply safety circuit is disconnected, thereby stopping power supply to the elevator and stopping the elevator from running.

[0100] Through the arrangement of the limit switch assembly 3 and the fracture monitoring assembly 4 in the present invention, it is possible to prevent the elevator from continuing to run when an abnormality occurs in the elevator compensation chain 6, thereby ensuring the safety and reliability of the elevator operation.

[0101] Furthermore, in the present invention, the limit switch assembly 3 and the fracture monitoring assembly 4 stop supplying power to the elevator by disconnecting the elevator power supply safety circuit, thereby stopping the operation of the elevator.

[0102] However, those skilled in the art should understand that the mechanism by which the limit switch assembly 3 and the fracture monitoring assembly 4 cause the elevator to stop running is not limited to this.

[0103] For example, in another embodiment of the present invention, the limit switch assembly 3 and the fracture monitoring assembly 4 can send signals to the elevator control system, and then control the operation of the elevator through the instructions of the elevator control system.

[0104] In another embodiment of the present invention, the limit switch assembly 3 and the fracture monitoring assembly 4 can be associated with the safety clamp brake system of the elevator, whereby the operation of the safety clamp brake system of the elevator can be controlled by the states of the limit switch assembly 3 and the fracture monitoring assembly 4, thereby also achieving the effect of controlling the operation of the elevator.

[0105] According to an exemplary embodiment of the present invention, the elevator compensation chain guide system of the present invention is provided with two limit switch assemblies 3 and one fracture monitoring assembly 4. However, those skilled in the art should understand that the number of limit switch assemblies 3 and fracture monitoring assemblies 4 should not be limited thereto, and they can be variously changed according to actual application conditions without departing from the protection scope of the present invention.

[0106] Since the two limit switch assemblies 3 have the same structure and are symmetrically arranged, the structure of one of the two limit switch assemblies 3 will be described in detail below. Figure 5 , the limit switch assembly 3 located on the right side will be described in detail.

[0107] The limit switch assembly 3 may include a base 31 and a limit switch 32 .

[0108] The base 31 can be connected to the third rod 223 and the fourth rod 224 of the mounting bracket 22 and can move in the vertical direction as the guide wheel assembly 2 moves. The two opposite ends of the base 31 are respectively formed with plug-in grooves 311, and the shape of the plug-in grooves 311 matches the shape of the protrusion 111. The two protrusions 111 of the column 11 can be respectively inserted into the two plug-in grooves 311; when the base 31 moves relative to the column 11 as the guide wheel assembly 2 moves, the plug-in grooves 311 move in the vertical direction along the protrusions 111.

[0109] In the example shown, the base 31 is fixed to the third rod 223 and the fourth rod 224 of the mounting bracket 22 by four fastening bolts 312. However, those skilled in the art should understand that the connection method between the base 31 and the mounting bracket 22 is not limited to this, and the number of the fastening bolts 312 is not limited to this, which will not be described in detail.

[0110] The limit switch 32 is mounted on the base 31. When the limit switch 32 moves relative to the column 11, the limit switch 32 switches to an off state, thereby disconnecting the elevator power supply safety circuit, stopping power supply to the elevator, and stopping the elevator from running.

[0111] According to an exemplary embodiment of the present invention, a form of the limit switch 32 is shown. In the example shown, the limit switch 32 may include a limit switch body portion 321 and a roller portion 322, a portion of the column 11 close to the limit switch 32 forms a limit groove 115, and the roller portion 322 is placed in the limit groove 115 and limited by the limit groove 115.

[0112] When the base 31 moves upward relative to the column 11 as the guide wheel assembly 2 moves, the limit switch body 321 of the limit switch 32 can move upward, and the roller part 322 cannot move upward due to the limitation of the limit groove 115, thereby the limit switch body 321 and the roller part 322 produce relative displacement, and accordingly, the limit switch 32 switches to the disconnected state, so that the elevator power supply safety circuit is disconnected.

[0113] However, those skilled in the art should understand that the form of the limit switch 32 is not limited thereto, and various equivalent replacements may be made, as long as the same function can be achieved.

[0114] According to an exemplary embodiment of the present invention, the fracture monitoring assembly 4 is disposed at a lower portion of the column 11 and is spaced apart from the elevator compensating chain 6 by a predetermined distance below the elevator compensating chain 6 .

[0115] Mate Reference Figure 1 and Figure 4 The fracture monitoring assembly 4 may include: a support plate 41, an action plate 42, a trigger plate 43, a fracture switch 44 and a reset element 45, wherein the support plate 41 is mounted to the column 11 by a fastener (such as a fastening bolt); the action plate 42 is rotatably mounted on the support plate 41, and when the elevator compensation chain 6 breaks, the elevator compensation chain 6 contacts and pushes the action plate 42 to rotate the action plate 42; the trigger plate 43 is mounted on the support plate 41 and is located on one side of the action plate 42, and the trigger plate 43 is configured to be pushed to generate movement through the rotation of the action plate 42; the fracture switch 44 is mounted on the support plate 41 and is located on the side of the trigger plate 43 opposite to the action plate 42, and the fracture switch 44 is configured to be switched to a disconnected state through the movement of the trigger plate 43, thereby disconnecting the elevator power supply safety circuit; the reset element 45 is mounted on the support plate 41 and is located on the same side of the trigger plate 43 as the fracture switch 44, and the reset element 45 is configured to reset the trigger plate 43.

[0116] In other words, the reset element 45 and the break switch 44 are located on one side of the trigger plate 43 , and the action plate 42 is located on the other side of the trigger plate 43 .

[0117] Specifically, the action plate 42 is rotatably mounted on the support plate 41 through two rotating pins 421. When the elevator compensation chain 6 breaks, the elevator compensation chain 6 contacts and pushes the action plate 42 to rotate the action plate 42 counterclockwise.

[0118] In the illustrated example, the support plate 41 is formed with an opening 411 , and the trigger plate 43 is inserted into the opening 411 . When the trigger plate 43 is pushed, the trigger plate 43 moves in the opening 411 .

[0119] In addition, the shape of the opening 411 is formed to be wider at the top and narrower at the bottom, and accordingly, the movable range of the upper portion of the trigger plate 43 is greater than the movable range of the lower portion of the trigger plate 43 .

[0120] Therefore, the trigger plate 43 is in a substantially inclined state after being moved, and can form a predetermined angle relative to the vertical direction.

[0121] Furthermore, the moved trigger plate 43 contacts the breaking switch 44, so that the breaking switch 44 switches to the disconnected state, thereby disconnecting the elevator power supply safety circuit.

[0122] According to an exemplary embodiment of the present invention, the reset element 45 is a reset spring. More specifically, the reset element 45 is a compression spring. When the trigger plate 43 is pushed and moves in the opening, the upper part of the trigger plate 43 compresses the compression spring; when the elevator fault is eliminated, the compression spring resets, thereby resetting the trigger plate 43 and the action plate 42, and accordingly, the break switch 44 switches to a closed state, and the elevator power supply safety circuit is closed.

[0123] According to another preferred embodiment of the present invention, an elevator using the elevator compensating chain guide system is also proposed. Since its core components and structure have been described in detail above, they will not be repeated here.

[0124] The above descriptions of the specific exemplary embodiments of the present invention are presented for the purpose of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise form disclosed, and it is obvious that many modifications and changes can be made according to the above teachings. The selection and description of the exemplary embodiments are to explain certain principles of the present invention and their practical applications, so that those skilled in the art can make and use various exemplary embodiments of the present invention and their different alternative forms and modified forms. The scope of the present invention is intended to be limited by the appended claims and their equivalents.

[0125] Unless otherwise specifically stated or understood otherwise within the context of use, conditional language such as "can," "may," "might," or "could" is generally intended to convey that certain embodiments may include, but are not required to include, certain features and / or elements. Thus, such conditional language is generally not intended to imply that one or more embodiments must in any way include the features and / or elements.

Claims

1. An elevator compensation chain guide system, characterized in that: include: A support frame assembly installed in the elevator shaft pit; A guide wheel assembly mounted to the upper end of the support frame assembly, the guide wheel assembly comprising a guide wheel, an elevator compensation chain passing around the guide wheel, and two ends of the elevator compensation chain are respectively fixed to the bottom center of the elevator counterweight and the car; An elevator power supply safety device, which includes an elevator power supply safety circuit; as well as A monitoring device is connected in series in the elevator power supply safety circuit and is configured to monitor whether an abnormality occurs in the elevator compensation chain. When the monitoring device detects an abnormality in the elevator compensation chain, the elevator power supply safety circuit is disconnected.

2. The elevator compensating chain guide system according to claim 1, characterized in that: The support frame assembly comprises: Two columns extending in a vertical direction, the lower ends of the columns being mounted to the elevator shaft pit; and A plurality of cross beams extend in a horizontal direction and are arranged in parallel with each other between the two columns, and two ends of each cross beam are respectively connected to the two columns.

3. The elevator compensating chain guide system according to claim 2, characterized in that: Each column includes: two protrusions formed on opposite sides of the upper end of the column; two recesses formed at the upper end of the column, the guide wheel assembly being disposed in the recesses and being movable in the vertical direction relative to the recesses; a long through groove extending in a vertical direction and having a predetermined width; and A plurality of protective brushes are arranged at two opposite sides of the long through groove, and the protective brushes protrude toward the long through groove, a predetermined gap is formed between two protective brushes facing each other, and the elevator compensation chain passes through the gap; Wherein, the width of the long through groove is greater than the gap between the two protective brushes.

4. The elevator compensating chain guide system according to claim 3, characterized in that: The guide wheel assembly further comprises: A mounting bracket comprising a first rod, a second rod, a third rod and a fourth rod, wherein the first rod, the third rod, the second rod and the fourth rod are sequentially connected to form a rectangular frame structure; and a counterweight block connected to the third rod and the fourth rod inside the rectangular frame structure; Wherein, the guide wheels of the guide wheel assembly include a first guide wheel and a second guide wheel, and the first guide wheel and the second guide wheel are rotatably mounted to the third rod and the fourth rod inside the rectangular frame structure; The axes of the first guide wheel and the second guide wheel are parallel to each other and spaced apart from each other by a predetermined distance; The elevator compensating chain passes through a first side of the first guide wheel and passes through a second side of the second guide wheel.

5. The elevator compensating chain guide system according to claim 4, characterized in that: The monitoring device comprises: A limit switch assembly configured to monitor whether the elevator compensation chain has a positional abnormality, and disconnect the elevator power supply safety circuit when the limit switch assembly monitors whether the elevator compensation chain has a positional abnormality; and A fracture monitoring component is configured to monitor whether the elevator compensation chain is fractured, and when the fracture monitoring component detects that the elevator compensation chain is fractured, the elevator power supply safety circuit is disconnected; Among them, when the elevator power supply safety circuit is disconnected, power supply to the elevator is stopped and the elevator stops running.

6. The elevator compensating chain guide system according to claim 5, characterized in that: The limit switch assembly is provided in two pieces, each of which comprises: A base, which is connected to the third rod and the fourth rod of the mounting bracket and can move in the vertical direction as the guide wheel assembly moves, and two opposite ends of the base are respectively formed with plug-in grooves, and the two protrusions of the column are respectively inserted into the two plug-in grooves; and A limit switch is mounted on the base. When the limit switch moves relative to the column, the limit switch switches to an off state, thereby disconnecting the elevator power supply safety circuit.

7. The elevator compensating chain guide system according to claim 5, characterized in that: The fracture monitoring assembly is disposed at a lower portion of the column and is spaced apart from the elevator compensation chain by a predetermined distance below the elevator compensation chain.

8. The elevator compensating chain guide system according to claim 7, characterized in that: The fracture monitoring component comprises: Support plate; An action plate is rotatably mounted on the support plate, and when the elevator compensation chain breaks, the elevator compensation chain contacts and pushes the action plate to rotate the action plate; a trigger plate, which is mounted on the support plate and located on one side of the action plate, wherein the trigger plate is configured to be pushed against by the rotation of the action plate to generate movement; a break switch mounted on the support plate and located on a side of the trigger plate opposite to the action plate, the break switch being configured to switch to a disconnected state through movement of the trigger plate, thereby disconnecting the elevator power supply safety circuit; and A reset element is mounted on the support plate and is located on the same side of the trigger plate as the break switch, wherein the reset element is configured to reset the trigger plate.

9. The elevator compensating chain guide system according to claim 4, characterized in that: The guide wheel assembly further comprises: a first protective cover mounted to the third rod and the fourth rod and configured to at least partially cover the first guide wheel; and A second protective cover is mounted to the third rod and the fourth rod and is configured to at least partially cover the second guide wheel.

10. An elevator, characterized in that: The invention comprises an elevator compensating chain guide system according to any one of claims 1 to 9.

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