Online calibrator for elevator speed governor

Abstract

The utility model discloses an on-line calibrator for an elevator speed governor, which belongs to the field of elevator detection equipment, and comprises a hinge, detection machine bodies, a test wheel, a balancing weight and an electrical detection joint, and the on-line calibrator is provided with double detection machine bodies with hinged structures, so that the equipment can clamp a speed governor rope through the test wheel of the double detection machine bodies to measure the speed of the speed governor rope. The electric detection connector of the detection machine body can be used for capturing a switch signal of the speed governor, so that after an elevator speed governor rope is separated from an elevator car at the top of the elevator car, the speed governor rope is driven by a balancing weight or other heavy objects to simulate falling of the elevator car so as to detect the speed governor, and the electric and mechanical action speed of the speed governor can be obtained; the bidirectional speed governor can be tested only by changing the rope, the device is simple and portable, low in manufacturing cost, simple and easy to operate, the testing time can be greatly saved, meanwhile, testing operation can be carried out by a single person, a speed governor protective cover and a lock wrench do not need to be disassembled to clamp the speed governor rope to be separated, and the testing danger is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to elevator detection equipment field, especially related to a kind of elevator speed governor on-line calibrator. BACKGROUND

[0002] Elevator speed governor is an important security component of elevator, when car out of control overspeed operation reaches the specified speed range, by speed governor first action, start safety shackle, car is clamped on guide rail, to realize reliable safety protection, therefore, the field detection of elevator speed governor, especially for the old ladder of years of use is a must-check project concerning personal safety, but prior art in use, traditional display tester tests, maintenance personnel need to be supported by support frame to fall in bottom pit and enter machine room to remove speed governor protective cover, use vice to clamp speed governor wire rope, control maintenance point car uplink, make speed governor wire rope hang in the air above speed governor, use vice to clamp the wire rope on the other side to avoid its deviation, observe whether wire rope has friction with speed governor wheel, avoid affecting test result, also need to cut off control cabinet power supply and remove speed governor electrical switch, use the detection line of tester to clamp on two lines of electrical switch, finally, tester is powered on, adjust relevant parameters on tester, after parameter setting, start testing, test, motor wheel is tested by being supported on speed governor wheel, during which, speed governor is automatically accelerated and operated, after three experiments, the data obtained from experimental results are recorded, if it is bidirectional speed governor, then the same method is used for forward and reverse test, which leads to traditional test equipment tool, not convenient to carry, also increased cost, detection cost is high, while operation is complex and tedious, needs installation and maintenance personnel skilled use, and needs long implementation time, and single person is also difficult to operate and has certain danger, it is relatively inconvenient. CONTENT OF UTILITY MODEL

[0003] (One) technical problem to be solved

[0004] In order to overcome the deficiencies of prior art, an elevator speed governor on-line calibrator is proposed to solve the problem that traditional test equipment tool is not convenient to carry, also increased cost, detection cost is high, while operation is complex and tedious, needs installation and maintenance personnel skilled use, and needs long implementation time, and single person is also difficult to operate and has certain danger, it is relatively inconvenient.

[0005] (Two) technical scheme

[0006] The utility model discloses a kind of elevator speed limiter online calibrators, its structure includes hinge, detection machine body, test wheel, counterweight and electrical detection connector, the side end of detection machine body is equipped with test wheel, detection machine body is equipped with two, two The test wheel of two detection machine bodies is assembled in the same direction, the counterweight is used to assemble on speed limiter rope, and the weight is provided on the side of speed limiter rope, electrical detection connector is assembled on detection machine body, and electrical detection connector is used to connect and receive the switch signal of speed limiter, and detection machine body is used to test the speed of speed limiter rope and the signal of acquisition safety loop.

[0007] Further, it further includes connecting rope, and the connecting rope is used to connect the counterweight and the detection machine body.

[0008] Further, the detection machine body is equipped with a tension sensor, and the tension sensor is connected with the counterweight through the connecting rope.

[0009] Further, the hinge includes a track plate, a hinged plate, a first clamping groove, a first limiting rod, a first elastic member, a first through groove, a hinge shaft and an anti-skid sleeve, the track plate and the hinged plate are both provided with two pieces, the hinge shaft is covered with the anti-skid sleeve, one end of the two hinged plates is hinged through the hinge shaft and the anti-skid sleeve, the hinged plate away from the hinge side is provided with the first through groove, the two track plates are assembled on the detection machine body, the two hinged plates are respectively pin-connected on the two track plates, the track plate is uniformly provided with the first clamping groove at both ends of the first through groove, the first limiting rod is provided with two pieces, the two first limiting rods are both arranged in the first through groove, and the two first limiting rods are connected through the first elastic member, and the two first limiting rods away from the first elastic member are arc-shaped and arranged in the first clamping groove.

[0010] Further, the anti-skid sleeve is made of rubber.

[0011] Further, the hinge further includes an assembly ring, a second limiting rod, a direction-adjusting plate, a second through groove, a second elastic member and a second clamping groove, the assembly ring is assembled on the detection machine body, the direction-adjusting plate is rotationally assembled on the inner ring side of the assembly ring, the inner ring end of the assembly ring is uniformly provided with the second clamping groove, the second through groove is provided on the direction-adjusting plate, the second limiting rod is provided with two pieces, the two second limiting rods are both arranged in the second through groove, and the two second limiting rods are connected through the second elastic member, and the two second limiting rods away from the second elastic member are arc-shaped and arranged in the second clamping groove.

[0012] Further, the detection machine body further includes a display screen and a key, and the display screen and the key are arranged on the detection machine body away from the hinge side.

[0013] Further, the testing wheel comprises a docking ring, a wheel body, a testing slot and a pin rod, the wheel body is fixed with the docking ring at the same center, the docking ring is covered and assembled on the speed measuring shaft rod of the detection machine body and is fixed through the pin rod, and the side end face of the wheel body is provided with the testing slot.

[0014] Further, the counterweight comprises a rope penetrating hole, a counterweight body, a third elastic element, a third limiting rod, an anti-skid layer, a rope pressing block, a limiting slot, a limiting plate and a rope pressing slot, a plurality of rope penetrating holes are provided on the counterweight body, the counterweight body is provided with the rope pressing slot at one end, the rope pressing slot is provided at the center of the plurality of rope penetrating holes and communicates with the rope penetrating holes, one end of the third limiting rod is fixed at the center of the rope pressing slot of the counterweight body, the rope pressing block is in a ladder shape, the side end face of the rope pressing block is provided with the anti-skid layer, the middle part of the large bottom surface side of the rope pressing block is provided with the limiting slot, the limiting plate is assembled in the limiting slot, the other end of the third limiting rod penetrates the rope pressing block and is locked with the limiting plate, the limiting plate is larger than the limiting rod, the third elastic element is arranged between the small bottom surface of the rope pressing block and the counterweight body, and the large bottom surface of the rope pressing block is larger than the interval between the plurality of rope penetrating holes.

[0015] Further, the anti-skid layer is an anti-skid material layer or a rough surface.

[0016] Further, the first elastic element and the second elastic element are compression springs, and the third elastic element is a tensile spring.

[0017] (Three) beneficial effects

[0018] One of the above technical solutions has the following advantages or beneficial effects:

[0019] By arranging the double detection machine bodies with the hinged structure, the device can clamp the speed limiter rope through the testing wheels of the double detection machine bodies to measure the speed of the speed limiter rope, and can capture the speed limiter switch signal through the electrical detection connector of the detection machine body, so that the device can simulate the falling of the car by driving the speed limiter rope with the counterweight block or other heavy objects after the speed limiter rope is separated from the car on the top of the elevator car, and can detect the speed limiter, so as to obtain the electrical and mechanical action speed of the speed limiter. The device is simple and portable, has low cost, is easy to operate, can greatly save testing time, and can be tested by a single person without the need to disassemble the speed limiter cover and clamp the speed limiter rope with a large force, thereby reducing the testing danger. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent after reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0021] Figure 1The utility model discloses a structure schematic diagram of an elevator speed limiter on-line calibrator,

[0022] Figure 2 The utility model discloses a structure schematic diagram of the inside surface of the utility model after unfolding,

[0023] Figure 3 The utility model discloses a structure schematic diagram of the section of the utility model embodiment three hinges after unfolding,

[0024] Figure 4 The utility model discloses a structure schematic diagram of the section of the utility model, Figure 3 The utility model discloses a structure schematic diagram of the section of the utility model,

[0025] Figure 5 The utility model discloses a structure schematic diagram of the section of the utility model, Figure 3 The utility model discloses a structure schematic diagram of the section of the utility model,

[0026] Figure 6 The utility model discloses a structure schematic diagram of the section of the utility model embodiment four hinges after unfolding,

[0027] Figure 7 The utility model discloses a structure schematic diagram of the section of the utility model, Figure 6 The utility model discloses a structure schematic diagram of the section of the utility model,

[0028] Figure 8 The utility model discloses a structure schematic diagram of the section of the utility model embodiment four direction adjusting plates and assembly rings after combination,

[0029] Figure 9 The utility model discloses a structure schematic diagram of the section of the utility model embodiment six novel counterweight,

[0030] In the drawing: hinge -1, detection machine body -2, test wheel -3, connecting rope -4, counterweight -5, electrical detection connector -6, track plate -101, hinged plate -102, first clamping groove -103, first limiting rod -104, first elastic part -105, first through groove -106, hinged shaft -107, antiskid sleeve -108, assembly ring -109, second limiting rod -110, direction adjusting plate -111, second through groove -112, second elastic part -113, second clamping groove -114, display screen -201, button -202, tension sensor -203, butt joint ring -301, wheel body -302, test groove -303, pin rod -304, rope passing hole -501, counterweight main body -502, third elastic part -503, third limiting rod -504, antiskid layer -505, rope pressing block -506, limiting groove -507, limiting plate -508, rope pressing groove -509. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in connection with the embodiments, and the embodiment of the utility model is not limited to this.

[0032] Embodiment one:

[0033] The utility model provides a kind of elevator speed governor on-line calibrator: its structure includes hinge 1, probe body 2, test wheel 3, counterweight 5 and electrical detection connector 6, one side of the side end of probe body 2 is equipped with test wheel 3, probe body 2 is equipped with two, two probe body 2 are hinged by hinge 1, the test wheel 3 of two probe body 2 is assembled in the same direction, the counterweight 5 is used to assemble on speed governor rope and provide weight for the side of speed governor rope, electrical detection connector 6 is equipped on probe body 2, and the switch signal of speed governor is used to connect and receive by electrical detection connector 6, probe body 2 is used to test the speed of speed governor rope and gather the signal of safety circuit.

[0034] Among them, probe body 2 further includes display screen 201 and button 202, display screen 201 and button 202 are equipped on the side of probe body 2 away from hinge 1.

[0035] When using, just stop elevator, then disconnect elevator speed governor rope and car, open double probe body 2, then assemble speed governor rope between the test wheel 3 of double probe body 2, and make test wheel 3 contact with speed governor rope, at the same time, through lengthened test signal line, make electrical detection connector 6 connect speed governor electrical switch to receive switch safety circuit signal, finally, through counterweight 5 or other heavy object assembled on speed governor rope, make speed governor rope drop under gravity, to simulate elevator falling process, when speed governor triggers, probe body can obtain the electrical and mechanical action speed of speed governor, so that whether the speed governor of elevator is normal can be known, compared with test speed governor wheel, direct falling simulation test can better obtain accurate trigger time and speed, and bidirectional speed governor needs to be tested, just assemble heavy object on the other side of speed governor rope or test the other side speed governor rope through probe body 2, equipment is simple and portable, cost is low, operation is simple and easy to operate, can greatly save test time, single person can also test operation, without disassembling speed governor shield and holding speed governor rope with big force tongs, reduce test danger, and double-body test has better stability and accuracy.

[0036] Embodiment two:

[0037] Compared with embodiment one, the utility model further includes connecting rope 4, and the connecting rope 4 is used to connect counterweight 5 and probe body 2.

[0038] Among them, probe body 2 is equipped with tension sensor 203, and the tension sensor 203 is connected with counterweight 5 through connecting rope 4.

[0039] In use, the detection body 2 and the weight block 5 can be connected through the connecting rope 4, so that the weight block 5 can be prevented from falling and being lost during testing or carrying, and the weight of the weight block 5 can be calculated through the connecting rope 4, and the remaining structure and effect are unchanged.

[0040] Embodiment three:

[0041] Compared with the foregoing embodiments, the hinge 1 of the embodiment comprises a track plate 101, a hinged plate 102, a first clamping groove 103, a first limiting rod 104, a first elastic member 105, a first through groove 106, a hinged shaft 107, and an anti-skid sleeve 108. The track plate 101 and the hinged plate 102 are both provided with two pieces. The anti-skid sleeve 108 is sleeved on the hinged shaft 107. One end of the two pieces of the hinged plate 102 is hinged through the hinged shaft 107 and the anti-skid sleeve 108. The first through groove 106 is provided on the hinged plate 102 away from the hinged side. The two pieces of the track plate 101 are assembled on the detection body 2. The two pieces of the hinged plate 102 are respectively pin-connected on the two pieces of the track plate 101. The first clamping groove 103 is uniformly provided at both ends of the first through groove 106. The first limiting rod 104 is provided with two pieces. The two pieces of the first limiting rod 104 are both provided in the first through groove 106. The two pieces of the first limiting rod 104 are connected through the first elastic member 105 and have a gap therebetween. The end of the two pieces of the first limiting rod 104 away from the first elastic member 105 is arc-shaped and provided in the first clamping groove 103.

[0042] The anti-skid sleeve 108 is made of rubber.

[0043] The first elastic member 105 is a compression spring.

[0044] In use, the hinged plate 102 can be slid within the range of the track plate 101 by dragging. When sliding, the arc-shaped end of the first limiting rod 104 is pressed by the moving force, so that the first limiting rod 104 compresses the first elastic member 105 into the range of the first through groove 106, until the arc-shaped end of the first limiting rod 104 enters the next first clamping groove 103, so that the hinge 1 forms a structure with adjustable assembly length. The two detection bodies 2 can adjust the opening and closing range by adjusting the assembly length of the hinge 1, so that the test wheels 3 of the two detection bodies 2 can adapt to more different sizes of speed limiter ropes for testing. At the same time, the assembly length adjustment of the hinge 1 requires a certain external force and cannot slide randomly, so a certain stability is maintained, and the remaining structure and effect are unchanged.

[0045] Embodiment four:

[0046] Compared with the foregoing embodiment, the hinge 1 of the embodiment further comprises an assembling ring 109, a second limiting rod 110, a direction adjusting plate 111, a second through groove 112, a second elastic member 113 and a second clamping groove 114. The assembling ring 109 is assembled on the detection machine body 2. The second elastic member 113 is a compression spring. The direction adjusting plate 111 is rotationally assembled on the inner ring side of the assembling ring 109. The inner ring end of the assembling ring 109 is uniformly provided with the second clamping groove 114. The second through groove 112 is provided on the direction adjusting plate 111. The second limiting rod 110 is provided with two rods. The two second limiting rods 110 are provided in the second through groove 112. The two second limiting rods 110 are connected through the second elastic member 113 and leave a slot therebetween. The end of the two second limiting rods 110 away from the second elastic member 113 is arc-shaped and is provided in the second clamping groove 114. The hinge 1 can be adjusted in the hinging direction with the detection machine body 2 by rotating the direction adjusting plate 111. During adjustment, the hinging plate 102 is rotated, the second limiting rod 110 of the direction adjusting plate 111 presses the second elastic member 113 into the second through groove 112, until the next second clamping groove 114 is entered. The different opening directions of the detection machine body 2 can be adjusted according to the use condition. The direction adjustment also needs certain external force and will not be randomly slid and keep certain stability. The rest of the structure and effects are unchanged.

[0047] Embodiment five

[0048] Compared with the foregoing embodiment, the test wheel 3 of the embodiment comprises a butt joint ring 301, a wheel body 302, a test groove 303 and a pin rod 304. The butt joint ring 301 is fixed with the same center as the wheel body 302. The butt joint ring 301 is covered and assembled on the speed measuring shaft rod of the detection machine body 2 and is fixed through the pin rod 304. The test groove 303 is provided on the side end face of the wheel body 302. During use, the speed limiter rope is placed in the test groove 303 of the wheel body 302 for testing, reducing the deviation. At the same time, the test wheel 3 can be conveniently replaced by pulling out the pin rod 304. The rest of the structure and effects are unchanged.

[0049] Embodiment six

[0050] Compared with the foregoing embodiment, the counterweight 5 comprises a rope passing hole 501, a counterweight body 502, a third elastic member 503, a third limiting rod 504, an anti-skid layer 505, a rope pressing block 506, a limiting groove 507, a limiting plate 508 and a rope pressing groove 509, the counterweight body 502 is provided with a plurality of rope passing holes 501 penetrating through the counterweight body 502, the counterweight body 502 is provided with a rope pressing groove 509 at one end, the rope pressing groove 509 is arranged at the center of the plurality of rope passing holes 501 and communicates with the rope passing holes 501, the third limiting rod 504 is fixed at the center of the rope pressing groove 509 of the counterweight body 502 at one end, the rope pressing block 506 is in the shape of a ladder, the side end surface of the rope pressing block 506 is provided with an anti-skid layer 505, the middle part of the large bottom surface side of the rope pressing block 506 is provided with a limiting groove 507, the limiting plate 508 is assembled in the limiting groove 507, the other end of the third limiting rod 504 penetrates through the rope pressing block 506 and is locked with the limiting plate 508, the limiting plate 508 is larger than the limiting rod 504, the third elastic member 503 is arranged between the small bottom surface of the rope pressing block 506 and the counterweight body 502, and the large bottom surface of the rope pressing block 506 is larger than the interval between the plurality of rope passing holes 501.

[0051] Wherein, the anti-skid layer 505 is a layer of anti-skid material or a rough surface.

[0052] Wherein, the third elastic member 503 is a tensile spring.

[0053] In use, the connecting rope 4 can be passed through one rope passing hole 501, then looped around the speed limiter rope, then passed through another rope passing hole 501 and pulled tight, so that the counterweight 5 can be assembled on the speed limiter rope, when pulled tight, the connecting rope 4 will press the rope pressing block 506 away from the counterweight body 502, so that the connecting rope 4 can be pulled smoothly, and when the speed limiter rope pulls the connecting rope 4 back, the rope pressing block 506 will be close to the counterweight body 502 due to the friction of the anti-skid layer 505 and the tension of the third elastic member 503, so that the rope pressing block 506 will press the connecting rope 4 tightly to prevent loosening, and when the restraint needs to be released, the rope pressing block 506 can be pulled to release the pressing on the connecting rope 4, and the connecting rope 4 can be taken out, and the remaining structure and effect remain unchanged.

[0054] In the description of the utility model, it should be explained that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0055] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply are common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the utility model will not explain the control mode and the wiring arrangement in detail.

[0056] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0057] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An online calibration instrument for elevator speed governors, characterized in that: The device includes a hinge (1), a probe body (2), a test wheel (3), a counterweight (5), and an electrical testing connector (6). The test wheel (3) is mounted on one side of the probe body (2). There are two probe bodies (2), which are hinged together by a hinge (1). The test wheels (3) of the two probe bodies (2) are mounted in the same direction. The counterweight (5) is used to provide weight to one side of the speed limiter rope. The electrical testing connector (6) is mounted on the probe body (2). The electrical testing connector (6) is used to connect to and receive the switch signal of the speed limiter. The probe body (2) is used to test the speed of the speed limiter rope and collect the signal of the safety circuit.

2. The elevator speed governor online calibration instrument according to claim 1, characterized in that: It also includes a connecting rope (4) for connecting the counterweight (5) to the probe body (2).

3. The elevator speed governor online calibration instrument according to claim 2, characterized in that: The probe body (2) is equipped with a tension sensor (203), which is connected to the counterweight (5) via a connecting rope (4).

4. The elevator speed governor online calibration instrument according to claim 1, characterized in that: The hinge (1) includes a track plate (101), a hinge plate (102), a first slot (103), a first limiting rod (104), a first elastic element (105), a first through slot (106), a hinge shaft (107), and an anti-slip sleeve (108). Two track plates (101) and two hinge plates (102) are provided. An anti-slip sleeve (108) is fitted over the hinge shaft (107). One end of each of the two hinge plates (102) is hinged to the hinge shaft (107) and the anti-slip sleeve (108). The first through slot (106) is provided on the hinge plate (102) away from the hinge side. The two track plates (101)... 01) The two hinge plates (102) are respectively pinned to the two track plates (101). The track plates (101) are evenly provided with first slots (103) at both ends of the first through slot (106). There are two first limiting rods (104). Both first limiting rods (104) are provided in the first through slot (106). There is a slot between the two first limiting rods (104) and they are connected by the first elastic element (105). The ends of the two first limiting rods (104) away from the first elastic element (105) are arc-shaped and are provided in the first slots (103).

5. The elevator speed governor online calibration instrument according to claim 4, characterized in that: The anti-slip sleeve (108) is made of rubber.

6. An online calibrator for elevator speed governors according to claim 1 or 4, characterized in that: The hinge (1) further includes an assembly ring (109), a second limiting rod (110), a steering plate (111), a second through groove (112), a second elastic element (113), and a second slot (114). The assembly ring (109) is assembled on the detector body (2). The steering plate (111) is rotatably assembled on the inner ring side of the assembly ring (109). The inner ring end of the assembly ring (109) is uniformly provided with the second slot (114). The steering plate (111) is provided with the second through groove (112). There are two second limiting rods (110). Both second limiting rods (110) are provided in the second through groove (112). There is a slot between the two second limiting rods (110) and they are connected by the second elastic element (113). The ends of the two second limiting rods (110) away from the second elastic element (113) are arc-shaped and are provided in the second slot (114).

7. The elevator speed governor online calibration instrument according to claim 1, characterized in that: The detector body (2) also includes a display screen (201) and buttons (202), which are located on the side of the detector body (2) away from the hinge (1).

8. The elevator speed governor online calibration instrument according to claim 1, characterized in that: The test wheel (3) includes a docking ring (301), a wheel body (302), a test groove (303), and a pin (304). The wheel body (302) is fixed with the docking ring (301) at the same center. The docking ring (301) covers the speed measuring shaft assembled on the detector body (2) and is fixed by the pin (304). The test groove (303) is provided on the side end face of the wheel body (302).

9. The elevator speed governor online calibration instrument according to claim 1, characterized in that: The counterweight (5) includes a rope hole (501), a counterweight body (502), a third elastic element (503), a third limiting rod (504), an anti-slip layer (505), a rope pressing block (506), a limiting groove (507), a limiting plate (508), and a rope pressing groove (509). The counterweight body (502) has multiple rope holes (501) penetrating through it. One end of the counterweight body (502) has a rope pressing groove (509), which is located at the center of the multiple rope holes (501) and communicates with them. One end of the third limiting rod (504) is fixed to the center of the rope pressing groove (509) of the counterweight body (502). At this location, the rope pressing block (506) is trapezoidal in shape, and the side end face of the rope pressing block (506) is provided with an anti-slip layer (505). The middle part of the large bottom surface of the rope pressing block (506) is provided with a limiting groove (507). A limiting plate (508) is installed in the limiting groove (507). The other end of the third limiting rod (504) passes through the rope pressing block (506) and is locked in the limiting plate (508). The limiting plate (508) is larger than the limiting rod (504). A third elastic element (503) is provided between the small bottom surface of the rope pressing block (506) and the counterweight body (502). The large bottom surface of the rope pressing block (506) is larger than the interval between the multiple rope holes (501).

10. An online calibrator for elevator speed governors according to claim 9, characterized in that: The anti-slip layer (505) is an anti-slip material layer or a rough surface.

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