Rope tripping device and method for elevator speed governor

Abstract

The application provides an elevator governor rope disengaging device and method. The rope disengaging device comprises a rope lifting assembly, which comprises a support, a supporting member and a rope lifting clamp. The support is arranged to be detachably fixed opposite to the elevator governor. The supporting member is connected to the support through a one-way rotating mechanism. The rope lifting clamp is arranged to clamp the steel wire rope around the elevator governor and form a telescopic lever mechanism with the supporting member as a lever arm. In application, the steel wire rope on one side of the governor wheel is fixed, the rope lifting clamp is held on the steel wire rope on the other side of the governor wheel, the support is installed on the elevator governor, or the supporting legs are placed on the ceiling or the ground where the rack is installed, so that the supporting member forms a fulcrum of the lever arm. Then the lever arm is pulled and lifted upward, so that the steel wire rope is disengaged from the governor wheel, which facilitates the user to separate the steel wire rope from the governor wheel with less labor. Since the steel wire rope is disengaged when the car stops, the safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, and particularly to an elevator governor rope-off device and a rope-off method. BACKGROUND

[0002] In the process of elevator governor checking, the steel wire rope needs to be separated from the governor speed limiting wheel. The commonly used rope-off methods include:

[0003] 1. Using a wrench to fix the steel wire rope on both sides of the governor speed limiting wheel, and then using a screwdriver to separate the steel wire rope from the speed limiting wheel to achieve rope-off. This rope-off method damages the speed limiting wheel and the steel wire rope, and the rope-off process is time-consuming and laborious.

[0004] 2. Fixing the steel wire rope at the governor or the car top with a wrench, and then making the car run in a state lacking governor protection to achieve rope-off. This rope-off method makes the car run in a state lacking safety protection, which is easy to cause safety accidents and cause loss of personal safety and equipment property. SUMMARY

[0005] In view of the above problems, the present application is proposed to provide an elevator governor rope-off device and a rope-off method which can overcome the above problems or at least partially solve the above problems, can solve the problems of time-consuming and laborious rope-off process on the governor and insecurity, and achieve the purpose of improving the detection efficiency of the elevator.

[0006] Specifically, the present application provides an elevator governor rope-off device, comprising:

[0007] A rope lifting assembly comprising a support, a supporting member and a rope lifting wrench, wherein the support is configured to be detachably fixed opposite to the elevator governor, the supporting member is connected to the support through a one-way rotation mechanism, and the rope lifting wrench is configured to clamp the steel wire rope wound around the elevator governor and form a telescopic lever mechanism with the supporting member as a lever arm.

[0008] Optionally, the rope-off device further comprises:

[0009] A positioning assembly comprising a positioning wrench, wherein the positioning wrench is configured to clamp the steel wire rope and is fixed opposite to the governor.

[0010] Optionally, the one-way rotation mechanism comprises:

[0011] A ratchet wheel formed on the supporting member and rotationally connected to the support;

[0012] A pawl connected to the support and configured to engage with the ratchet wheel when in a locked state and disengage from the ratchet wheel when in an unlocked state.

[0013] Optionally, the support base comprises:

[0014] The card seat forms a card slot for being carded on the frame of the speed limiter, and a top pressing bolt for pressing against the connecting frame is arranged on at least one side slot wall of the card slot.

[0015] Optionally, the support base comprises:

[0016] The support leg comprises a leg portion and a bottom portion, the leg portion is connected to the support member through the one-way rotation mechanism, and the bottom portion is formed at the lower end of the leg portion and extends in a direction perpendicular to the axis of the leg portion and the one-way rotation mechanism.

[0017] Optionally, the rope lifting clamp and / or the positioning clamp comprises:

[0018] The fixed clamp body forms a clamp cavity with one side open and an operation hole communicating with the clamp cavity, and the operation hole at least partially forms a screw hole section;

[0019] The movable clamp body is installed in the clamp cavity and reciprocally moves along the axial direction of the operation hole, and the movable clamp body and the cavity wall of the clamp cavity form a clamp opening communicating with the opening and having an adjustable opening degree;

[0020] The operation rod is rotatably sleeved in the operation hole and rotationally connected to the movable clamp body, and at least partially forms a screw rod section matched with the screw hole section.

[0021] Optionally, a connecting hole is formed on the support member and connected to the rope lifting clamp, so that the rope lifting clamp moves along the axial direction in the connecting hole to form the lever mechanism.

[0022] Optionally, the positioning assembly further comprises:

[0023] The extended connecting rod is connected to the positioning clamp, so that the extended connecting rod and the positioning clamp are respectively connected to the opposite sides of the frame of the elevator speed limiter.

[0024] Optionally, the positioning clamp comprises the fixed clamp body, the movable clamp body and the operation rod, the fixed clamp body further forms a clamp body portion matched with the movable clamp body and a sleeve portion sleeved with the operation rod, the sleeve portion is located at one end of the clamp body portion, the other end of the clamp body portion forms a sleeve-shaped or rod-shaped connecting portion opposite to the sleeve portion, and the connecting portion is used for threadedly connecting the extended connecting rod, so that the extended connecting rod and the sleeve portion are respectively connected to the opposite sides of the frame of the elevator speed limiter.

[0025] Optionally, the support base forms a ratchet cavity accommodating the ratchet, a bypass hole communicating with the ratchet cavity is formed on the cavity wall of the ratchet cavity; and

[0026] The pawl forms a fitting section telescopically installed in the bypass hole and an unlocking portion exposed from the bypass hole, and the pawl is connected with a spring used to press the pawl to keep the locking state.

[0027] Optionally, the support forms a rotating shaft portion rotationally connected with the support base, and the ratchet wheel is coaxially formed on the rotating shaft portion and has an outer diameter not greater than that of the rotating shaft portion;

[0028] The support base forms a rotating shaft hole matched with the rotating shaft portion, the ratchet wheel cavity is in the rotating shaft hole, a connecting cap is insertedly connected in the bypass hole, the connecting cap and the pawl abut against both ends of the spring, and a through hole passing through the unlocking portion is formed in the connecting cap; and

[0029] A clamping spring is clamped on the rotating shaft portion and abuts against the support base, a locking bolt is connected on the support base and abuts against the connecting cap to lock the connecting cap, and a pull ring is connected on the unlocking portion and abuts against the connecting cap.

[0030] Optionally, one end of the movable plier body is connected with the operating rod, and the other end is connected with the plier cavity wall on the opposite side to form a V-shaped or arc-shaped or trapezoidal groove, thereby forming the plier opening between the two.

[0031] The application also provides a rope disengaging method of an elevator governor,

[0032] The elevator governor comprises a speed limiting wheel and a steel wire rope wound around the speed limiting wheel, the steel wire rope forms a first section located on one side of the speed limiting wheel and a second section located on the other side of the speed limiting wheel; and

[0033] The first section is fixed relative to the speed limiting wheel;

[0034] The second section is connected to one end of a lever arm of a lever mechanism, and the lever arm is pulled and raised upward at a fulcrum of the lever mechanism, so that the second section is disengaged from the speed limiting wheel, wherein the fulcrum is fixed relative to the speed limiting wheel.

[0035] In the rope disengaging device of the elevator governor, the rope lifting plier and the support form a lever mechanism with a telescopic lever arm. In application, the steel wire rope on one side of the speed limiting wheel is fixed, the rope lifting plier is held on the steel wire rope on the other side of the speed limiting wheel, the support base is installed on the elevator governor, the support forms a fulcrum of the lever arm, and then the lever arm is pulled and raised upward, so that the steel wire rope is disengaged from the speed limiting wheel. In this way, the steel wire rope is disengaged in the state that the car stops running, so that the safety is greatly improved. Meanwhile, the steel wire rope is pulled out of the speed limiting wheel in the radial direction of the speed limiting wheel in the form of rotation of the lever mechanism, so that the speed limiting wheel and the steel wire rope are not easily damaged, and the operation is simple and time-saving and labor-saving.

[0036] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description considered in conjunction with the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0037] Some specific embodiments of the present application will now be described in detail with reference to the accompanying drawings, which are provided by way of example and are not limiting of the present application. Like reference numerals refer to like elements or parts throughout the description. It shall be understood that the drawings are not necessarily to scale. In the drawings:

[0038] Figure 1 is a schematic structural diagram of an elevator overspeed governor in the prior art;

[0039] Figure 2 is a schematic structural diagram of a rope lifting assembly in a rope stripping device according to an embodiment of the present application;

[0040] Figure 3 is a schematic structural diagram of a positioning assembly in a rope stripping device according to an embodiment of the present application;

[0041] Figure 4 is a schematic sectional view of a support in a rope stripping device according to an embodiment of the present application;

[0042] Figure 5 is a schematic sectional view of a support in a rope stripping device according to an embodiment of the present application;

[0043] Figure 6 is a schematic application state diagram of a rope stripping device according to an embodiment of the present application;

[0044] Figure 7 is a schematic application state diagram of a rope stripping device according to an embodiment of the present application;

[0045] Figure 8 is a schematic application state diagram of a rope stripping device according to an embodiment of the present application;

[0046] Figure 9 is a schematic application state diagram of a rope stripping device according to an embodiment of the present application;

[0047] Figure 10 is a schematic structural diagram of a rope lifting assembly in a rope stripping device according to an embodiment of the present application;

[0048] Figure 11 is a schematic structural diagram of a positioning assembly in a rope stripping device according to an embodiment of the present application;

[0049] Figure 12 is a schematic sectional view of a positioning clamp in a rope stripping device according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following reference Figures 1 to 12 This invention describes an elevator speed governor release device and release method according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0051] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Figure 1 is a schematic structural diagram of an elevator overspeed governor in the prior art, as shown in Figure 1 The elevator overspeed governor comprises a frame 100, an overspeed governor wheel 200 and a steel wire rope 300. The overspeed governor wheel 200 is rotatably installed in the frame 100. The steel wire rope 300 is wound into the overspeed governor wheel 200 from one side of the overspeed governor wheel 200 and is wound out of the overspeed governor wheel 200 from the other side. The bottom of the frame 100 is provided with a clearance hole 110 for the steel wire rope 300. Alternatively, the bottom of the frame 100 is provided with an opening to avoid interfering with the movement of the steel wire rope 300.

[0055] Figure 2 is a schematic structural diagram of a rope lifting assembly in a rope disengaging device according to an embodiment of the present application, as shown in Figure 2 and with reference to Figures 3 to 12 The embodiment of the present application provides a rope disengaging device for an elevator overspeed governor, which comprises a rope lifting assembly 400. The rope lifting assembly 400 comprises a support 410, a supporting member 420 and a rope lifting clamp 430. The support 410 is configured to be detachably fixed relative to the elevator overspeed governor. The supporting member 420 is connected to the support 410 through a one-way rotation mechanism 600. The rope lifting clamp 430 is configured to clamp the steel wire rope 300 wound around the elevator overspeed governor and forms a telescopic lever mechanism with the supporting member 420 as a lever arm.

[0056] It should be noted that the one-way rotation mechanism 600 in the present application is derived from the one-way intermittent motion mechanism in the prior art. The one-way intermittent motion mechanism refers to some machines that move periodically and stop in one direction. Thus, the one-way rotation mechanism 600 in the present application refers to a machine that can rotate in one direction and cannot reciprocate.

[0057] In the embodiment, the steel wire rope 300 on one side of the overspeed governor wheel 200 is fixed by using the same tool as the rope lifting clamp 430 in the present application, a clamp in the prior art or any tool capable of clamping the steel wire rope 300. Meanwhile, the rope lifting clamp 430 in the rope lifting assembly 400 is clamped on the steel wire rope 300 on the other side of the overspeed governor wheel 200. The support 410 is installed on the elevator overspeed governor, so that the supporting member 420 forms a fulcrum of a lever arm. Then, the rope lifting clamp 430 is pulled and raised upward, so that the steel wire rope 300 is disengaged from the overspeed wheel. In this way, the steel wire rope 300 is disengaged in the state that the car stops running, so that the safety is greatly improved. Meanwhile, the steel wire rope 300 is pulled out of the overspeed governor wheel 200 in the radial direction of the overspeed governor wheel 200 in the form of lever mechanism rotation, so that the overspeed governor wheel 200 and the steel wire rope 300 are not easily damaged, and the operation is simple, time-saving and labor-saving.

[0058] Further, as shown in Figure 3As shown, the rope removing device further comprises a positioning assembly 500, which comprises a positioning clamp 510 configured to clamp the steel wire rope 300 and fixedly arranged opposite to the elevator governor. The positioning clamp 510 in the embodiment is used to fix the steel wire rope 300 on one side of the governor wheel 200, so that the rope lifting clamp 430 in the rope lifting assembly 400 fixes the steel wire rope 300 on the other side of the governor wheel 200, and then the steel wire rope 300 is pulled out of the governor wheel 200 along the radial direction of the governor wheel 200 through the lever mechanism rotation.

[0059] In some embodiments of the present application, as shown in Figure 4 、 Figure 5 As shown, the one-way rotation mechanism 600 comprises a ratchet wheel 610 and a pawl 620, the ratchet wheel 610 is formed on the support 420 and rotationally connected with the support base 410; the pawl 620 is connected on the support base 410 and configured to engage with the ratchet wheel 610 when in the locked state and disengage from the ratchet wheel 610 when in the unlocked state. In application, the support 420 drives the ratchet wheel 610 to rotate relative to the support base 410, and in the process of rotation, the pawl 620 constantly engages with and disengages from the ratchet wheel 610 until the end of rotation; at the same time, when in the locked state, the pawl 620 engages with the ratchet wheel 610, so that the ratchet wheel 610 cannot rotate reversely, realizing one-way rotation.

[0060] In some embodiments of the present application, as shown in Figure 2 As shown, the support base 410 comprises a clamping seat 411, the clamping seat 411 forms a clamping groove 4111 used to clamp on the frame 100 of the elevator governor, and at least one side groove wall of the clamping groove 4111 is provided with a top tightening bolt 4112 used to abut and connect the frame 100. In application, the frame 100 is clamped into the clamping groove 4111, the top tightening bolt 4112 is rotated, the screw rod of the top tightening bolt 4112 moves to the other side groove wall of the clamping groove 4111, prompting the frame 100 to be attached to the groove wall, the top tightening bolt 4112 is continuously rotated, the frame 100 is tightly attached to the groove wall and the top tightening bolt 4112, thereby completing the fixing work of the support base 410.

[0061] Since the width of the frame 100 of the elevator governor is less than the diameter of the governor wheel 200, the clamping seat 411 in the above-mentioned embodiment cannot be clamped on the frame 100 or after the clamping seat 411 is clamped on the frame 100, the rope lifting clamp 430 cannot rotate. In view of this, in some alternative embodiments of the present application, as shown in Figure 10As shown, the support 410 includes a leg 412, which includes a leg portion 4121 connected to the support 420 through the one-way rotation mechanism 600 and a bottom portion 4122 formed at the lower end of the leg portion 4121 and extending in a direction perpendicular to the axis of the leg portion 4121 and the one-way rotation mechanism 600. In application, the bottom portion 4122 of the leg 412 is placed on the ceiling or the ground where the rack 100 is installed. Since the bottom portion 4122 extends in a direction perpendicular to the axis of the leg portion 4121 and the one-way rotation mechanism 600, the extending direction of the bottom portion 4122 is parallel to the rotation plane of the lever arm, and during the rotation of the lever arm, a stable support is formed for the leg portion 4121 and the support 420, thereby providing a stable fulcrum for the rotation of the lever arm.

[0062] In some embodiments of the present application, the rope lifting clamp 430 and / or the positioning clamp 510 include a fixed clamp body 401, a movable clamp body 402 and an operating rod 403. The fixed clamp body 401 forms a one-side open clamp cavity and an operating hole communicating with the clamp cavity, and the operating hole at least partially forms a screw hole section; the movable clamp body 402 is mounted in the clamp cavity and reciprocally moves along the axial direction of the operating hole, and forms a clamp opening with the cavity wall of the clamp cavity, which is in communication with the opening and has an adjustable opening degree; the operating rod 403 is rotatably sleeved in the operating hole and rotationally connected with the movable clamp body 402, and at least partially forms a screw rod section matched with the screw hole section.

[0063] In application, the fixed clamp body 401 is moved to allow the steel wire rope 300 to enter the clamp cavity from the opening, and then the operating rod 403 is rotated, and under the cooperation of the screw hole section and the screw rod section, the screw rod section is rotated and moved at the same time, so that the operating rod 403 drives the movable clamp body 402 to move and clamps the steel wire rope 300 between the fixed clamp body 401 and the movable clamp body 402. That is, the rope lifting clamp 430 and / or the positioning clamp 510 are both hook-shaped clamps because the fixed clamp body 401 forms a one-side open clamp cavity; in application, the hook-shaped clamps hook the steel wire rope, and the movable clamp body 402 moves towards the steel wire rope to press and clamp the steel wire rope between the hook-shaped clamps and the fixed clamp body 401.

[0064] In some embodiments of the present application, the support 420 is formed with a connecting hole 421 connected with the rope lifting clamp, so that the rope lifting clamp moves axially in the connecting hole 421 to form the lever mechanism. The connecting hole 421 is a waist-shaped hole or an elongated circular groove, so as to adjust the lifting position of the rope lifting clamp, thereby better releasing the steel wire rope from the speed limiter wheel. In application, as shown in FIG. 6, the connecting hole 421 is a waist-shaped hole, and the rope lifting clamp 430 is connected with the support 420 through the waist-shaped hole. Figure 6As shown, first, the rope lifting tongs and the positioning tongs 510 are placed at the same height as the bottom 4122 of the machine frame 100, and then the positioning tongs 510 clamps and fixes the steel wire rope 300 on one side of the speed governor wheel 200 at this position; as shown, Figure 7 As shown, the other side of the steel wire rope 300 on the speed governor wheel 200 is clamped and fixed by the rope lifting tongs, so that the steel wire rope 300 cannot move downward, as shown, Figure 8 Then, the support 410 is moved upward to the upper end or a suitable position of the machine frame 100 and fixed, and the support 410 drives the support member 420 to move, because one end of the rope lifting tongs inserted in the support member 420 is connected with the steel wire rope and is limited, so that the support member 420 rotates, and then the rope lifting tongs is in an inclined state; as shown, Figure 9 Then, the operating rod 403 is pressed, and under the limitation of the connecting hole 421, the support member 420 rotates around its axis, and the operating rod 403 drives the fixed tongs body 401 and the steel wire rope 300 to rotate around the axis of the support member 420, so that the steel wire rope 300 moves upward; at the same time, in order to avoid the interference of the speed governor wheel 200 when the fixed tongs body 401 rotates, the operating rod 403 is pulled away from the speed governor wheel 200, so that the operating rod 403 moves axially in the connecting hole 421, ensures that the fixed tongs body 401 has a certain gap with the speed governor wheel 200, and drives the steel wire rope 300 to move away from the speed governor wheel 200 in the radial direction of the speed governor wheel 200, so that the steel wire rope 300 is separated from the speed governor wheel. At the same time, due to the arrangement of the one-way rotation mechanism 600, the support and the support member cannot rotate reversely, and the automatic locking is completed. When it is needed to restore the steel wire rope to the original position, the pawl 620 is controlled to be separated from the ratchet wheel 610, and the unlocking is completed.

[0065] The inventor finds that when the opening is provided at the bottom 4122 of the machine frame 100, the size of the opening is often larger than the size of the fixed tongs body 401 in the positioning assembly 500, so that the machine frame 100 cannot form a stop action on the positioning assembly 500. In view of this, in some embodiments of the present application, as shown, Figure 11 The positioning assembly 500 further comprises a lengthened connecting rod 520, which is connected with the positioning tongs 510, so as to be arranged that the lengthened connecting rod 520 and the positioning tongs 510 are respectively connected on opposite sides of the machine frame 100 of the elevator speed governor, so as to enable the bottom 4122 of the machine frame 100 to form a stop action on the positioning assembly 500 through the lengthened connecting rod 520.

[0066] In some embodiments of the present application, as shown, Figure 12As shown, the positioning clamp 510 comprises the fixed jaw 401, the movable jaw 402 and the operating rod 403, the fixed jaw 401 further forms a jaw part cooperating with the movable jaw 402 and a sleeve part sleeved with the operating rod 403, the sleeve part is located at one end of the jaw part, the other end of the jaw part forms a sleeve or rod shaped connecting part opposite to the sleeve part, the connecting part is used to threadedly connect the extended connecting rod 520, so that the extended connecting rod 520 and the sleeve part are respectively connected on opposite sides of the rack 100 of the elevator speed limiter. In this way, the extended connecting rod 520 and the sleeve part are respectively located at two ends of the fixed jaw 401, so as to be connected on opposite sides of the rack 100 of the elevator speed limiter, thereby forming a stop effect on the positioning assembly 500.

[0067] In some embodiments of the present application, as shown in Figure 4 、 Figure 5 As shown, the support 410 forms a ratchet cavity accommodating the ratchet 610, a bypass hole communicating with the ratchet cavity is formed on the cavity wall of the ratchet cavity; and the pawl 620 forms a cooperating segment reciprocally installed in the bypass hole and an unlocking part exposed from the bypass hole, the pawl 620 is connected with a spring 710 used to press the pawl 620 to keep the locking state.

[0068] When the support 420 rotates relative to the support 410, the ratchet 610 rotates with the support 420, due to the spring 710 pressing the pawl 620, the pawl 620 is inserted into the tooth groove of the ratchet 610, when the ratchet 610 rotates through a certain angle, the pawl 620 is separated from the tooth groove and slides on the tooth back of the ratchet 610. When the support 420 stops rotating, the pawl 620 is inserted into the tooth groove and keeps the locking state, so as to form safe and effective support and positioning on the steel wire rope 300, so that the operator can perform verification.

[0069] In some embodiments of the present application, the support 420 forms a rotating shaft part connected with the support base 410, the ratchet wheel 610 is coaxially formed on the rotating shaft part and has an outer diameter not greater than that of the rotating shaft part; the support base 410 forms a rotating shaft hole matched with the rotating shaft part, both ends of the support 420 are mounted on the support base 410 and can rotate along the rotating shaft hole to provide a lever fulcrum for the hoisting rope clamp; the ratchet wheel cavity is in the rotating shaft hole and the connecting cap 720 is inserted in the bypass hole, the connecting cap 720 and the pawl 620 abut against both ends of the spring 710, and a through hole passing through the unlocking part is formed on the connecting cap 720; and the clamping spring 730 is clamped on the support base 410 on the rotating shaft part, three clamping grooves are formed on the support 420, and the clamping spring is arranged in one-to-one correspondence with the clamping grooves; two clamping grooves are respectively mounted on both sides of the position of the ratchet wheel 610 of the support 420 to enable the clamping spring in the clamping groove to limit the movement of the support base 410 clamped on the ratchet wheel 610; and the other clamping groove is mounted on the end of the support 420 away from the ratchet wheel 610 to enable the clamping spring in the clamping groove to limit the disengagement of the support base 410 from the support 420. The locking bolt on the support base 410 is connected to abut against and lock the connecting cap 720, and the pull ring 740 on the unlocking part is connected to abut against the connecting cap 720. In this way, after the elevator speed limiter is checked by the operator, when it is necessary to restore the steel wire rope 300 to its original position, the pull ring 740 is pulled to enable the pawl 620 to disengage from the ratchet wheel 610, that is, to complete the unlocking; at the same time, the clamping spring 730 is removed to enable the support 420 to be removed from the support base 410, thereby facilitating the disassembly, transportation and assembly of the hoisting rope assembly 400.

[0070] After the elevator speed limiter is checked, the support base 410 is unlocked, the tightening bolt 4112 on the support base 410 is removed, the support base 410 is removed, the hoisting rope clamp is loosened, the steel wire rope 300 is restored to its original position, and finally the positioning clamp 510 is removed from the steel wire rope 300, thereby completing the entire restoration work.

[0071] In some embodiments of the present application, one end of the movable clamp body 402 is connected with the operating rod 403, the other end is connected with the cavity wall of the opposite side clamp cavity to form a V-shaped or arc-shaped or trapezoidal recess, and the clamp opening is formed between the two. The V-shaped or arc-shaped or trapezoidal recess is a necked slot with a large opening and a small bottom. In this way, the steel wire rope 300 is located between the recess and the clamp cavity, the movable clamp body 402 and the plurality of surfaces of the fixed clamp body 401 are in contact with the steel wire rope 300, and stable clamping of the steel wire rope 300 is ensured.

[0072] In some embodiments of the present application, in order to facilitate the rotation of the operating rod 403, a handle 800 is connected to the end of the operating rod 403 away from the movable pliers body 402, the extension direction of the handle 800 is perpendicular to the extension direction of the operating rod 403, so that the handle 800 and the operating rod 403 cooperate to form a force-saving lever, so that the user can easily rotate the operating rod 403.

[0073] The embodiment of the present application also provides a rope disengaging method of an elevator governor, the elevator governor comprising a speed limiting wheel and a steel wire rope 300 wound on the speed limiting wheel, the steel wire rope 300 forms a first section located on one side of the speed limiting wheel and a second section located on the other side of the speed limiting wheel; and

[0074] The first section is fixed relative to the speed limiting wheel; the second section is connected to one end of a lever arm of a lever mechanism, and the lever arm is pulled on a fulcrum of the lever mechanism and is lifted upward, so that the second section is disengaged from the speed limiting wheel, wherein the fulcrum is fixed relative to the speed limiting wheel.

[0075] When the rope disengaging method of the elevator governor in the embodiment is used to disengage the rope of the elevator governor, first, the elevator is stopped, then according to the state of the bottom of the frame 100, it is determined whether the positioning assembly 500 with the lengthened connecting rod 520 is connected, for example, if the bottom of the frame 100 is only provided with the clearance hole 110, the positioning assembly 500 without the lengthened connecting rod 520 is selected; if the bottom of the frame 100 is provided with a larger opening, the positioning assembly 500 with the lengthened connecting rod 520 is selected. Then the positioning assembly 500 is stopped at the bottom of the frame 100, at the same time, the positioning clamp 510 clamps the first section of the steel wire rope 300. Then according to the shape of the frame 100, the rope lifting assembly 400 is selected, for example, if the frame 100 is large in size on both sides, the clamping seat 411 can be clamped on the frame 100, then the rope lifting assembly 400 with the support 410 including the clamping seat 411 is selected; if the frame 100 is small in size on both sides, the clamping seat 411 cannot be clamped on the frame 100, then the rope lifting assembly 400 with the support 410 including the supporting leg 412 is selected, so that the supporting leg 412 stably supports the supporting member 420, and further provides a stable fulcrum for the rotation of the lever arm. Then the rope lifting clamp 430 is clamped on the second section of the steel wire rope 300 close to the bottom of the frame 100, then the clamping seat 411 is clamped on the upper side of the frame 100 or the supporting leg 412 is moved, so that the supporting member 420 is higher than the position of the rope lifting clamp 430, so that the rope lifting clamp 430 is inclined, and one end of the steel wire rope 300 clamped by the rope lifting clamp 430 is at a lower position, then the higher end of the rope lifting clamp 430 is pressed, so as to avoid the interference of the governor wheel 200 with the rotation of the rope lifting clamp 430, at the same time, the rope lifting clamp 430 is pulled away from the governor wheel 200, so that the steel wire rope 300 is disengaged from the governor wheel 200. In this way, since the steel wire rope 300 is disengaged in the state that the car is stopped, the safety is greatly improved; at the same time, the steel wire rope 300 is pulled out of the governor wheel 200 in the radial direction of the governor wheel 200 in the manner of the rotation of the lever mechanism, so that the governor wheel 200 and the steel wire rope 300 are not easily damaged, and the operation is simple, time-saving and labor-saving.

[0076] At this point, those skilled in the art should recognize that although the present application has been fully shown and described with reference to a plurality of exemplary embodiments, many other variations or modifications in accordance with the principles of the present application can be directly determined or deduced from the disclosure of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. Elevator governor rope tripping device, characterized in that Comprising: a rope lifting assembly including a support, a support member and a rope lifting jaw, the support configured to be detachably fixed opposite to the elevator governor, the support member connected to the support through a one-way rotation mechanism, the rope lifting jaw configured to clamp the steel wire rope wound around the elevator governor and form a telescopic lever mechanism with the support member as a lever arm; the one-way rotation mechanism comprising: a ratchet wheel formed on the support member and rotationally connected to the support; a pawl connected to the support and configured to engage with the ratchet wheel in a locked state and disengage from the ratchet wheel in an unlocked state.

2. The de-roping device according to claim 1, characterized in that the rope lifting device further comprising: a positioning assembly including a positioning jaw configured to clamp the steel wire rope and fixed opposite to the elevator governor.

3. The rope lifting device according to claim 1, wherein the support comprises: a clamping seat formed to clamp in a clamping groove on the frame of the elevator governor, at least one side groove wall of the clamping groove is provided with a top pressing bolt for abutting connection with the frame.

4. The rope lifting device according to claim 1, wherein the support comprises: a support leg including a leg portion and a bottom portion, the leg portion is connected to the support member through the one-way rotation mechanism, and the bottom portion is formed at the lower end of the leg portion and extends in a direction perpendicular to the axis of the leg portion and the one-way rotation mechanism.

5. The rope lifting device according to claim 1, wherein the rope lifting jaw and / or the positioning jaw comprises: a fixed jaw body forming a one-side open jaw cavity and an operation hole communicating with the jaw cavity, the operation hole at least partially forms a screw hole section; a movable jaw body mounted in the jaw cavity and guided reciprocatingly along the axial direction of the operation hole, and surrounded by the cavity wall of the jaw cavity to form a jaw opening communicating with the opening and having an adjustable opening degree; an operation rod rotatably sleeved in the operation hole and rotationally connected to the movable jaw body, and at least partially forms a screw rod section matched with the screw hole section.

6. The rope lifting device according to claim 1, wherein a connecting hole is formed on the support member and connected to the rope lifting jaw, so that the rope lifting jaw moves axially in the connecting hole to form the lever mechanism.

7. The rope lifting device according to claim 2, wherein the positioning assembly further comprises: an extended lap rod connected to the positioning jaw, so that the extended lap rod and the positioning jaw are respectively lapped on opposite sides of the frame of the elevator governor.

8. The rope lifting device according to claim 5, wherein the positioning jaw comprises the fixed jaw body, the movable jaw body and the operation rod, the fixed jaw body further forms a jaw body part matched with the movable jaw body and a sleeve part sleeved with the operation rod, the sleeve part is located at one end of the jaw body part, the other end of the jaw body part forms a sleeve-shaped or rod-shaped connecting part opposite to the sleeve part, and the connecting part is used to threadedly connect the extended lap rod, so that the extended lap rod and the sleeve part are respectively lapped on opposite sides of the frame of the elevator governor.

9. The rope lifting device according to claim 1, wherein The support forms a ratchet cavity accommodating the ratchet, and a bypass hole is formed in a cavity wall of the ratchet cavity and communicates with the ratchet cavity; and The pawl forms a fitting section reciprocally installed in the bypass hole and an unlocking portion exposed from the bypass hole, and the pawl is connected to a spring for pressing the pawl to maintain the locking state.

10. The rope removing device according to claim 9, wherein The support forms a rotating shaft portion rotationally connected with the support, and the ratchet is coaxially formed on the rotating shaft portion and has an outer diameter not greater than that of the rotating shaft portion; The support forms a rotating shaft hole matched with the rotating shaft portion, the ratchet cavity is in the rotating shaft hole, and a connecting cap is inserted and connected in the bypass hole, the connecting cap and the pawl abut against both ends of the spring, and a through hole is formed in the connecting cap and passes through the unlocking portion; and A clamping spring is clamped on the rotating shaft portion and abuts against the support, a locking bolt is connected on the support and abuts against and locks the connecting cap, and a pull ring is connected on the unlocking portion and abuts against the connecting cap.

11. The rope removing device according to claim 5, wherein One end of the movable plier body is connected with the operating rod, and the other end is connected with the cavity wall of the plier cavity on the opposite side to form a V-shaped or arc-shaped or trapezoidal groove, thereby forming the plier opening between the two.

12. A rope-off method for an elevator speed governor, characterized by The rope removing device according to any one of claims 1 to 11 is used to remove the rope; The elevator speed limiter comprises a speed limiter wheel and a steel wire rope wound around the speed limiter wheel, the steel wire rope forms a first section located on one side of the speed limiter wheel and a second section located on the other side of the speed limiter wheel; The first section is fixed relative to the speed limiter wheel; and The second section is connected to one end of the lever arm of the lever mechanism, and the lever arm is pulled and raised upward at a fulcrum of the lever mechanism, so that the second section is separated from the speed limiter wheel, wherein the fulcrum is fixed relative to the speed limiter wheel. ​

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