Elevator overspeed governor

Abstract

The utility model relates to the technical fields of elevator speed governor, especially to an elevator speed governor, including base, the two sides symmetry of the both ends outside base are provided with mounting block, will make its relative base axial movement through the rotation adjusting bolt, the axial movement of adjusting bolt will drive the sliding of movable seat on slide rail, thereby realize the accurate adjustment of movable seat position, to satisfy different model elevator speed governor body installation and operation requirement, when the steel wire is located two cleaning brush, movable plate is removed under the action of external force, first damper can play the buffering effect, the removal of movable plate will drive the movement of sliding block in sliding slot through the inclined rod, the second damper plays the buffering effect in the process of sliding block movement, and the cleaning brush is installed on movable plate and removes along with the removal of movable plate, and the two side surfaces of cleaning brush and the external steel wire are in close contact and can effectively remove the dust, dirt and other sundries on the surface of steel wire, keep the cleaning of steel wire, and the practicality is better.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator speed governors, and in particular to an elevator speed governor. Background Technology

[0002] Elevator speed governors are crucial mechanical and electrical linkage devices in elevator safety systems. Their core function is to monitor the elevator car's operating speed in real time and trigger a safety protection mechanism when the speed exceeds the rated value by a certain percentage. This prevents serious accidents such as elevator falls or overshoots caused by overspeeding and is a key component for ensuring passenger safety and stable equipment operation. When the elevator is running normally, the wire rope drives the speed governor wheel to rotate at the same speed as the car. If the elevator overspeeds, such as due to brake failure, traction machine malfunction, or control system disorder causing the car's downward speed to exceed 115% of the rated speed or its upward speed to exceed 125% of the rated speed, the speed governor wheel's rotation speed will also increase. At this time, the centrifugal device inside the speed governor will be triggered due to the increased centrifugal force. First, the elevator's safety circuit will be cut off through the electrical switch, causing the elevator's drive unit and brake to stop working immediately. If the elevator still fails to brake effectively at this time, the speed governor's mechanical action mechanism will further actuate, clamping the wire rope through the rope clamping device. Using the friction or mechanical resistance between the wire rope and the speed governor wheel, the wire rope will be forced to stop moving. The other end of the wire rope is connected to the elevator's safety clamp, which will actuate under the action of the wire rope, tightly clamping the elevator car onto the guide rail, causing the car to stop quickly, thereby avoiding more serious dangers.

[0003] Traditional elevator speed governors lack a cleaning mechanism on their base, leading to the accumulation of impurities on the steel ropes over time. This can cause the speed governor to malfunction when activated due to the dust and impurities on the steel ropes, resulting in low practicality and certain drawbacks. Therefore, to solve the above problems, this utility model provides an elevator speed governor. Utility Model Content

[0004] The purpose of this invention is to provide an elevator speed limiter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator speed governor, comprising a base, mounting blocks symmetrically arranged on both sides of the outer ends of the base, two slide rails mounted on the top of the base, two movable seats symmetrically mounted on the top of the base and on the two slide rails, the elevator speed governor body being mounted on the top of the movable seats, a groove being formed at one outer end of the base, fixed seats symmetrically mounted on the top of the base and on both sides of the groove, a first damper being mounted on the outside of the fixed seats, a movable plate being mounted on one end of the first damper, and a cleaning brush being mounted on the outside of the movable plate.

[0006] Preferably, adjusting bolts are symmetrically installed at both ends of the outer side of the base. One end of the adjusting bolt passes through the base and is rotatably connected to the outside of the movable seat. The outer ring surface of the adjusting bolt is threadedly connected to the inside of the base.

[0007] Preferably, the bottom inner sides of the two movable seats are slidably connected to the outer sides of the two slide rails, and the adjusting bolt can drive the movable seats to slide on the two slide rails when rotated.

[0008] Preferably, threaded holes are symmetrically provided at both ends of the top of the movable seat, and fastening bolts are provided on the base of the elevator speed governor body. The fastening bolts can be inserted into the threaded holes after passing through the base of the elevator speed governor body.

[0009] Preferably, the fixed base has symmetrical grooves at both ends of its outer side, and a second damper is installed on one side wall of the inner side of the groove. A slider is installed at one end of the second damper, and the outer side of the slider is in contact with the inner side wall of the groove.

[0010] Preferably, a slanted rod is rotatably connected to the outer side of the slider, and the end of the slanted rod away from the slider is rotatably connected to the outside of the movable plate. Both sides of the cleaning brush are in contact with the outside of the steel rope on the elevator speed limiter body.

[0011] In summary, this utility model has the following beneficial technical effects:

[0012] This type of elevator speed governor allows for axial movement relative to the base by rotating an adjusting bolt. This axial movement of the adjusting bolt causes the movable seat to slide on a slide rail, thus achieving precise adjustment of the movable seat's position to meet the installation and operation requirements of different elevator speed governor models. When the steel rope is positioned between the two cleaning brushes, the movable plate moves under external force. The first damper acts as a buffer. The movement of the movable plate drives the slider to move within the slide groove via a diagonal rod. During the slider's movement, the second damper simultaneously acts as a buffer. The cleaning brushes, mounted on the movable plate, effectively remove dust, oil, and other debris from the steel rope surface as the movable plate moves, keeping the steel rope clean and reducing the impact of debris accumulation on the steel rope's performance and the speed governor's accuracy. This ensures the elevator speed governor can operate accurately and reliably at critical moments, guaranteeing the safe operation of the elevator and enhancing its practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an elevator speed limiter according to an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram on the right side of the overall structure of an elevator speed limiter according to an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the base portion of an elevator speed limiter according to an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the fixed seat part in an elevator speed limiter according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Base; 2. Mounting block; 3. Slide rail; 4. Movable seat; 5. Elevator speed governor body; 6. Groove; 7. Fixed seat; 8. First damper; 9. Movable plate; 10. Cleaning brush; 11. Adjusting bolt; 12. Threaded hole; 13. Fastening bolt; 14. Slide groove; 15. Second damper; 16. Sliding block; 17. Diagonal bar. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 - Figure 4 The present invention will be described in further detail below.

[0019] An elevator speed governor, as shown in the reference Figure 1 - Figure 4 The system includes a base 1, mounting blocks 2 symmetrically arranged on both sides of the outer ends of the base 1, two slide rails 3 mounted on the top of the base 1, two movable seats 4 symmetrically mounted on the top of the base 1 and on the two slide rails 3, an elevator speed limiter body 5 mounted on the top of the movable seats 4, a groove 6 opened on one end of the outer side of the base 1, fixed seats 7 symmetrically mounted on the top of the base 1 and on both sides of the groove 6, a first damper 8 mounted on the outside of the fixed seat 7, a movable plate 9 mounted on one end of the first damper 8, and a cleaning brush 10 mounted on the outside of the movable plate 9.

[0020] Reference Figure 1 - Figure 3Adjusting bolts 11 are symmetrically installed at both ends of the base 1. One end of the adjusting bolt 11 passes through the base 1 and is rotatably connected to the outside of the movable seat 4. The outer ring surface of the adjusting bolt 11 is threadedly connected to the inside of the base 1. When it is necessary to adjust the position of the movable seat 4, the adjusting bolt 11 is rotated. Because the outer ring surface of the adjusting bolt 11 is threadedly connected to the inside of the base 1, rotating the adjusting bolt 11 will cause it to move axially relative to the base 1. Since one end of the adjusting bolt 11 is rotatably connected to the outside of the movable seat 4, the axial movement of the adjusting bolt 11 will cause the movable seat 4 to slide on the slide rail 3, thereby achieving... The precise adjustment of the position of the movable seat 4 is to meet the installation and operation requirements of the speed governor body 5 of different elevator models. The bottom inner side of the two movable seats 4 is slidably connected to the outside of the two slide rails 3. When the adjusting bolt 11 is rotated, it can drive the movable seat 4 to slide on the two slide rails 3. The sliding connection between the bottom inner side of the movable seat 4 and the outside of the slide rail 3 allows the movable seat 4 to move smoothly along the slide rail 3. When the adjusting bolt 11 is rotated, the axial movement of the adjusting bolt 11 is transmitted to the movable seat 4. Under the constraint of the slide rail 3, the movable seat 4 can only slide along the direction of the slide rail 3, ensuring the stability and accuracy of the movement of the movable seat 4.

[0021] Reference Figure 1 - Figure 3 The top of the movable seat 4 has symmetrical threaded holes 12 at both ends. The base of the elevator speed governor body 5 is provided with fastening bolts 13. After passing through the base of the elevator speed governor body 5, the fastening bolts 13 can be inserted into the threaded holes 12. When installing the elevator speed governor body 5, place the elevator speed governor body 5 in a suitable position on the movable seat 4, align the fastening bolts 13 with the threaded holes 12 at both ends of the top of the movable seat 4, and then rotate the fastening bolts 13 so that they pass through the base of the elevator speed governor body 5 and are screwed into the threaded holes 12. As the fastening bolts 13 are continuously screwed in, the connection between the elevator speed governor body 5 and the movable seat 4 gradually becomes tighter, which can firmly fix the elevator speed governor body 5 on the movable seat 4, ensuring that the elevator speed governor body 5 will not loosen or shift due to vibration or other reasons during elevator operation, and ensuring its stable and reliable operation.

[0022] Reference Figure 1 - Figure 4The fixed base 7 has symmetrically provided grooves 14 at both ends of its exterior. A second damper 15 is installed on one side wall of the inner side of the groove 14. A slider 16 is installed at one end of the second damper 15. The outer side of the slider 16 is in contact with the inner side wall of the groove 14. A diagonal rod 17 is rotatably connected to the outer side of the slider 16. The end of the diagonal rod 17 away from the slider 16 is rotatably connected to the exterior of the movable plate 9. Both sides of the cleaning brush 10 are in contact with the exterior of the steel rope on the elevator speed limiter body 5. When the steel rope is located between the two cleaning brushes 10, the movable plate 9 is moved by the external force. Because the two ends of the diagonal rod 17 are... The slider 16 and the movable plate 9 are not rotatably connected. The movement of the movable plate 9 will drive the slider 16 to move within the slide groove 14 through the inclined rod 17. During the movement of the slider 16, the second damper 15 plays a buffering role. The cleaning brush 10 is installed on the movable plate 9. As the movable plate 9 moves, the two sides of the cleaning brush 10 come into contact with the outside of the steel rope, which can effectively remove dust, oil and other debris from the surface of the steel rope, keep the steel rope clean, reduce the impact of debris accumulation on the performance of the steel rope and the accuracy of the speed governor, and ensure that the elevator speed governor can act accurately and reliably at critical moments, thus ensuring the safe operation of the elevator.

[0023] The implementation principle of an elevator speed governor according to this utility model embodiment is as follows: When using this speed governor, if it is necessary to adjust the position of the movable seat 4, the adjusting bolt 11 is rotated. Since the outer ring surface of the adjusting bolt 11 is threadedly connected to the inside of the base 1, rotating the adjusting bolt 11 will cause it to move axially relative to the base 1. Since one end of the adjusting bolt 11 is rotatably connected to the outside of the movable seat 4, the axial movement of the adjusting bolt 11 will cause the movable seat 4 to slide on the slide rail 3, thereby achieving precise adjustment of the position of the movable seat 4 to meet the installation and operation requirements of the speed governor body 5 of different elevator models. The requirement is that the sliding connection between the inner bottom of the movable seat 4 and the outer side of the slide rail 3 allows the movable seat 4 to move smoothly along the slide rail 3. When the adjusting bolt 11 is rotated, the axial movement of the adjusting bolt 11 is transmitted to the movable seat 4. Under the constraint of the slide rail 3, the movable seat 4 can only slide along the direction of the slide rail 3, ensuring the stability and accuracy of the movement of the movable seat 4. When installing the elevator speed governor body 5, place the elevator speed governor body 5 in a suitable position on the movable seat 4, align the fastening bolt 13 with the threaded holes 12 at both ends of the top of the movable seat 4, and then rotate the fastening bolt 13 to pass through the elevator. The base of the speed governor body 5 is screwed into the threaded hole 12. As the fastening bolt 13 is continuously screwed in, the connection between the elevator speed governor body 5 and the movable seat 4 gradually tightens, which can firmly fix the elevator speed governor body 5 on the movable seat 4, ensuring that the elevator speed governor body 5 will not loosen or shift due to vibration or other reasons during elevator operation, and ensuring its stable and reliable operation. When the steel rope is located at the two cleaning brushes 10, the movable plate 9 is moved by external force. The first damper 8 can play a buffering role. Furthermore, since the two ends of the inclined rod 17 are rotatably connected to the slider 16 and the movable plate 9 respectively. The movement of the movable plate 9 will drive the slider 16 to move within the slide groove 14 via the inclined rod 17. During the movement of the slider 16, the second damper 15 will simultaneously play a buffering role. The cleaning brush 10 is installed on the movable plate 9. As the movable plate 9 moves, the two sides of the cleaning brush 10 will come into contact with the outside of the steel rope, which can effectively remove dust, oil and other debris from the surface of the steel rope, keep the steel rope clean, reduce the impact of debris accumulation on the performance of the steel rope and the accuracy of the speed governor, ensure that the elevator speed governor can act accurately and reliably at critical moments, ensure the safe operation of the elevator, and improve its practicality.

[0024] Finally, the following points should be noted: First, in the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly, and can be mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0025] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0027] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An elevator speed governor, comprising a base (1), characterized in that: Mounting blocks (2) are symmetrically arranged on both sides of the outer ends of the base (1). Two slide rails (3) are installed on the top of the base (1). Two movable seats (4) are symmetrically installed on the top of the base (1) and on the two slide rails (3). The elevator speed limiter body (5) is installed on the top of the movable seats (4). A groove (6) is opened on one side of the outer end of the base (1). Fixed seats (7) are symmetrically installed on the top of the base (1) and on both sides of the groove (6). A first damper (8) is installed on the outside of the fixed seat (7). A movable plate (9) is installed on one end of the first damper (8). A cleaning brush (10) is installed on the outside of the movable plate (9).

2. The elevator speed governor according to claim 1, characterized in that: Adjusting bolts (11) are symmetrically installed at both ends of the base (1). One end of the adjusting bolt (11) passes through the base (1) and is rotatably connected to the outside of the movable seat (4). The outer ring surface of the adjusting bolt (11) is threadedly connected to the inside of the base (1).

3. The elevator speed governor according to claim 2, characterized in that: The bottom inner sides of the two movable seats (4) are slidably connected to the outside of the two slide rails (3), and the adjusting bolt (11) can drive the movable seats (4) to slide on the two slide rails (3) when it rotates.

4. An elevator speed governor according to claim 3, characterized in that: The top two ends of the movable seat (4) are symmetrically provided with threaded holes (12), and the base of the elevator speed governor body (5) is provided with fastening bolts (13). The fastening bolts (13) can be connected to the inside of the threaded holes (12) after passing through the base of the elevator speed governor body (5).

5. An elevator speed governor according to claim 1, characterized in that: The fixed base (7) has symmetrical grooves (14) at both ends of the outside. A second damper (15) is installed on one side wall of the inner side of the groove (14). A slider (16) is installed at one end of the second damper (15). The outer side of the slider (16) is in contact with the inner side wall of the groove (14).

6. An elevator speed governor according to claim 5, characterized in that: A slant rod (17) is rotatably connected to the outer side of the slider (16). The end of the slant rod (17) away from the slider (16) is rotatably connected to the outside of the movable plate (9). Both sides of the cleaning brush (10) are in contact with the outside of the steel rope on the elevator speed limiter body (5).

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