Elevator safety control device

Abstract

The present invention discloses an elevator safety control device, comprising a bottom plate, a bottom frame is provided at the bottom of the bottom plate, a car frame is provided on the bottom frame, a car guard plate is provided on the car frame, a buffer is provided on the top surface of the bottom plate, a partition buffer plate is provided on the top of the buffer output shaft, a stabilizing frame movably fitted with the car guard plate is provided on the partition buffer plate, an outer guard plate is provided on the top surface of the bottom plate, and a foot guard plate is provided at the front end of the bottom plate. The present invention overcomes the shortcomings of the prior art, optimizes the situation of insufficient space when the elevator car is rescued due to the problem of suspended staggered floors, avoids the phenomenon of secondary falling caused by adjusting the height of the car due to insufficient space, and has high social use value and application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator safety control device. Background Art

[0002] An elevator is an electrically driven lift in a building. It is a vertical conveying equipment that can transport people and goods. Because the elevator uses vertical lifting motion, the actual load capacity of the elevator is limited depending on the use environment and model. Long-term overload operation will shorten the service life of the elevator and increase the chance of safety hazards.

[0003] The bottom of the existing stairwell is equipped with a buffer device that cooperates with the car to provide a buffer for the car when the elevator car falls to the bottom of the stairwell, thereby reducing the damage to the internal personnel caused by the falling car.

[0004] Furthermore, when an elevator is suspended in the stairwell due to a malfunction, the inner door of the elevator and the outer door of the landing are prone to vertical misalignment, which will cause the space for people to pass through the inner door to be compressed. During rescue, trapped people will be unable to enter the landing through the hole after the inner door is opened. At this time, the conventional practice requires adjusting the height at which the elevator is suspended, lowering the height of the elevator car, and reducing the vertical misalignment between the inner door and the outer door. However, adjusting the height of the car in the stairwell at this time may easily cause the car to fall a second time, causing the people in the car to be injured again.

[0005] To this end, the inventors have designed and developed an elevator safety control device that can improve the safety of an elevator when it falls and hits the bottom through a double buffering effect, and solves the problem of narrow space for people to pass through due to the misalignment of the elevator's suspension. Summary of the invention

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An elevator safety control device comprises a bottom plate, a bottom frame is provided at the bottom of the bottom plate, a car frame is provided on the bottom frame, a car guard plate is provided on the car frame, a buffer is provided on the top surface of the bottom plate, a partition buffer plate is provided at the top end of the buffer output shaft, a stabilizing frame movably fitted with the car guard plate is provided on the partition buffer plate, an outer guard plate is provided on the top surface of the bottom plate, and a foot guard plate is provided at the front end of the bottom plate;

[0008] The interlayer buffer plate is provided with a splicing notch, the bottom of the interlayer buffer plate is provided with an inner guard plate which is movably fitted with the outer guard plate, and a sinking plate is provided in the inner guard plate.

[0009] Preferably, a guide groove is provided on the inner side of the outer guard plate, a guide frame movably mounted on the outer side of the inner guard plate is provided, a stabilizing rod is provided on the inner side of the inner guard plate, and a stabilizing hole movably mounted on the stabilizing rod is provided on the sinking plate.

[0010] Preferably, both ends of the inner side of the outer guard plate are provided with limit plates for providing height limit for the sinking plate, the top surface of the bottom plate is provided with side rails, and the ends of the side rails are provided with main rails located on the upper part of the outer guard plate.

[0011] Preferably, a track connecting plate A is provided on the interlayer buffer plate to provide stability for the side track, and a track connecting plate B is provided on the sinking plate to provide stability for the main track.

[0012] Preferably, a mounting plate located at the lower part of the bottom surface of the outer guard plate is provided on the bottom frame, and a gear box is provided on the mounting plate.

[0013] Preferably, a spur gear is provided in the gear box, a screw cap located outside the gear box is provided on the spur gear, and a synchronous gear meshing and matching with the spur gear is also provided in the gear box.

[0014] Preferably, both ends of the mounting plate are rotatably provided with an adjustment mechanism, the adjustment mechanism comprises a transmission rod rotatably fitted with the mounting plate, the transmission rod is provided with a transmission gear located in a gear box, and the transmission gear is meshed and matched with a synchronous gear.

[0015] Preferably, the transmission rod is provided with an inner hexagonal cavity, the sliding sleeve in the inner hexagonal cavity is provided with an outer hexagonal rod, the top of the outer hexagonal rod is provided with an inner screw, and the top threaded sleeve of the inner screw is provided with a threaded rod rotatably connected to the bottom surface of the sinking plate.

[0016] Preferably, an alignment groove is provided on the outer guard plate, and the top of the alignment groove is open.

[0017] Preferably, a through hole is provided on the inner guard plate, a locking plate pin is movably mounted inside the through hole, a stabilizing groove is provided at the inner bottom of the through hole, and a stabilizing convex strip slidably matched with the stabilizing groove is provided on the bottom surface of the locking plate pin.

[0018] Preferably, a locking chamber is provided on the inner side of the inner guard plate, and a spline groove and a sleeve ring are provided in the locking chamber.

[0019] Preferably, the inner guard plate is rotatably mounted with a manual transmission mechanism, the manual transmission mechanism includes a rotating shaft which is rotatably mounted with the inner guard plate, a positive pawl disk is provided at the end of the rotating shaft and is located outside the inner guard plate, the other end of the rotating shaft is provided with an adjustment cavity located in the locking bin, an inner hexagonal slot is provided in the adjustment cavity, and a mounting groove which matches the rotation of the mounting ring is provided on the outside of the adjustment cavity.

[0020] Preferably, the adjusting cavity is rotatably sleeved with an unlocking mechanism, the unlocking mechanism includes a rotating rod rotatably sleeved with the adjusting cavity, the end of the rotating rod is provided with a spline cap located outside the adjusting cavity, the spline cap and the spline groove are slidably sleeved, the other end of the rotating rod is provided with a baffle located in the adjusting cavity, the rotating rod is movably sleeved with a tension spring located between the baffle and the adjusting cavity, and the other side of the rotating rod is provided with an outer hexagonal screw rod slidably sleeved with the inner hexagonal slot.

[0021] Preferably, an automatic transmission mechanism is provided on the outer side of the inner guard plate, and the automatic transmission mechanism includes a reverse pawl plate rotatably connected to the outer side of the inner guard plate, and a first gear is provided on the reverse pawl plate. A straight rack meshing with the first gear is provided on the outer side of the outer guard plate, and the reverse pawl plate is hollow.

[0022] Preferably, a bracket is provided on the bottom surface of the interlayer buffer plate, a second gear is provided at the bottom end of the bracket, a linkage rod is provided at the top end of the bracket, the other end of the linkage rod is rotatably connected to the outer side surface of the inner guard plate, and an adjustment gear is provided on the linkage rod that meshes and matches with the second gear.

[0023] Preferably, a reciprocating wire groove is provided on the linkage rod, and an adjustment seat threadably mounted on the reciprocating wire groove is provided on the locking plate pin.

[0024] Preferably, a bidirectional ratchet disc is provided on the second gear, and a positive protrusion that rotates with the positive ratchet disc and a reverse protrusion that rotates with the reverse ratchet disc are provided in the bidirectional ratchet disc.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Through the setting of the interlayer buffer plate, when the car falls to the bottom of the stairwell, when the bottom frame and the buffer equipment in the stairwell are buffering, the buffer can simultaneously cooperate with the interlayer buffer plate to perform buffering in the car. The double buffer setting improves the buffering effect and improves the safety of people in the car.

[0027] 2. By setting up the sinking plate and utilizing the cooperation between the outer guard plate and the inner guard plate, the height position between the sinking plate and the interlayer buffer plate can be adjusted, so as to facilitate the improvement of the space for personnel to pass between the car and the landing during the elevator hovering rescue process, and avoid the problem of small space for personnel to pass when the elevator hovers at the top of the landing. There is no need to readjust the height of the elevator hovering, so as to avoid the secondary fall of the car.

[0028] 3. Through the setting of the gear box and the adjusting mechanism, and by utilizing the cooperation between the spur gears, the synchronous gears and the adjusting mechanism, the height position of the sinking plate within the inner guard plate can be quickly adjusted, so that rescue can be carried out quickly.

[0029] 4. By setting the locking pin, the top surface of the sinking plate and the top surface of the interlayer buffer plate are kept in the same plane, which can ensure the stability of the height position of the sinking plate. When the interlayer buffer plate cooperates with the bottom plate and the buffer to perform internal buffering movement, the top surface of the interlayer buffer plate and the top surface of the sinking plate can always remain stable. Combined with the internal structure of the gear box and the setting of the adjustment mechanism, it plays a synergistic role in the position stability between the sinking plate and the interlayer buffer plate.

[0030] 5. Through the setting of the spur rack, by utilizing the mutual cooperation among the automatic transmission mechanism, the spur rack, the second gear, the two-way ratchet plate, the linkage rod, the adjusting gear, the reciprocating wire groove and the adjusting seat, it is possible to make the first gear and the spur rack mesh when the interlayer buffer plate is performing internal buffering, so that the locking plate pin can directly release the lock on the height position of the sinking plate. When the degree of falling buffering is large, it can save the time required to lower the height position of the sinking plate for rescue.

[0031] 6. Through the setting of the manual transmission mechanism, utilizing the mutual cooperation among the locking bin, manual transmission mechanism, unlocking mechanism, two-way ratchet disc, linkage rod, adjusting gear, reciprocating wire groove and adjusting seat, when the falling buffer is not serious, manual adjustment can be performed to allow the locking plate pin to release its lock on the height position of the sinking plate.

[0032] In summary, the present invention overcomes the shortcomings of the prior art, optimizes the situation where there is insufficient space for rescue of personnel due to the problem of the elevator car hovering at the wrong level, and avoids the phenomenon of secondary falling caused by adjusting the height of the car due to insufficient space. The present invention has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 3 It is a schematic diagram of the structural splicing of the bottom plate, the car frame and the car guard plate in the present invention;

[0037] Figure 4 It is a schematic diagram of the structural cross-section of the bottom plate, the car guard plate and the interlayer buffer plate in the present invention;

[0038] Figure 5 It is a schematic diagram of the structural cross section of the bottom plate and the interlayer buffer plate of the present invention;

[0039] Figure 6 It is a schematic diagram of the structural position of the sinking plate in the present invention;

[0040] Figure 7 Based Figure 6 A magnified view of the local structure at point A in the middle;

[0041] Figure 8 It is a schematic diagram of the exploded structure of the locking chamber, the manual transmission mechanism and the unlocking mechanism in the present invention;

[0042] Fig. 9 It is a schematic diagram of the structural positions of the locking chamber, the manual transmission mechanism and the unlocking mechanism in the present invention;

[0043] Fig.10 It is a schematic diagram of the structural splicing of the second gear and the bidirectional ratchet disc in the present invention;

[0044] Fig.11 It is a structural schematic diagram of the intermediate layer buffer plate of the present invention;

[0045] Fig.12 It is a schematic diagram of the structural splicing of the sinking plate and the adjustment mechanism in the present invention;

[0046] Fig.13 It is a schematic diagram of the structural position of the gear box and the adjustment mechanism in the present invention;

[0047] In the figure: 1, bottom plate; 101, buffer; 102, outer guard plate; 1021, alignment groove; 1022, guide groove; 1023, limit plate; 103, footboard; 104, side track; 1041, main track; 2, bottom frame; 201, car frame; 202, mounting plate; 3, car guard plate; 4, interlayer buffer plate; 401, splicing notch; 41, stabilizing frame; 42, inner Guard plate; 421, stabilizer bar; 422, guide frame; 423, perforation; 4231, stabilizer groove; 43, track plate A; 5, sinking plate; 501, stabilizer hole; 502, track plate B; 6, gear box; 601, spur gear; 602, synchronous gear; 603, screw cap; 7, adjustment mechanism; 701, threaded rod; 702, internal screw rod; 703, external hexagonal rod; 704, transmission rod; 7041, hexagonal cavity; 705, transmission gear; 8, locking chamber; 81, spline groove; 82, set ring; 9, manual transmission mechanism; 901, rotating shaft; 902, positive ratchet plate; 903, adjusting cavity; 9031, set groove; 904, hexagonal slot; 10, bracket; 11, unlocking mechanism; 1101, rotating rod; 1102, baffle; 1103, tension spring; 1104, hexagonal screw rod; 1105, spline cap; 12, automatic transmission mechanism; 1201, reverse ratchet plate; 1202, first gear; 13, spur rack; 14, second gear; 15, two-way ratchet plate; 151, positive protrusion; 152, reverse protrusion; 16, linkage rod; 161, adjusting gear; 162, reciprocating wire groove; 17, locking plate pin; 171, stabilizing protrusion; 172, adjusting seat. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] Reference Figure 1-13, an elevator safety control device comprises a bottom plate 1, a bottom frame 2 is provided at the bottom of the bottom plate 1, a car frame 201 is provided on the bottom frame 2, a car guard plate 3 is provided on the car frame 201, a buffer 101 is provided on the top surface of the bottom plate 1, the opening and closing of the buffer 101 is controlled by a speed sensor, when the falling speed is too large, the buffer 101 is directly opened, when the falling speed is slow, the buffer 101 does not need to be opened, an interlayer buffer plate 4 is provided at the top of the output shaft of the buffer 101, a stabilizing frame 41 which is movably mounted with the car guard plate 3 is provided on the interlayer buffer plate 4, an outer guard plate 102 is provided on the top surface of the bottom plate 1, a foot guard plate 103 is provided at the front end of the bottom plate 1, the bottom plate 1 and the car guard plate 3 are connected into a whole through the setting of the car frame 201, the setting of the stabilizing frame 41 enables it to be movably mounted with the car guard plate 3, and the up and down movement of the interlayer buffer plate 4 will not affect the position of the car guard plate 3;

[0051] A splicing groove 401 is provided on the interlayer buffer plate 4, and an inner guard plate 42 which is movably mounted with the outer guard plate 102 is provided at the bottom of the interlayer buffer plate 4, and a sinking plate 5 is provided inside the inner guard plate 42. Through the setting of the sinking plate 5 and the opening of the splicing groove 401, people standing on the interlayer buffer plate 4 can pass through the space formed by the lowering height of the sinking plate 5, thereby avoiding the phenomenon that the space between the floor station door and the car door is too small to accommodate people passing through.

[0052] Specifically, a guide groove 1022 is provided on the inner side of the outer guard plate 102, a guide frame 422 which is movably mounted on the guide groove 1022 is provided on the outer side of the inner guard plate 42, a stabilizing rod 421 is provided on the inner side of the inner guard plate 42, and a stabilizing hole 501 which is movably mounted on the stabilizing rod 421 is provided on the sinking plate 5. The arrangement of the outer guard plate 102 and the inner guard plate 42 can provide protection for the sinking plate 5 when the sinking plate 5 is being lowered, and can also prevent people from falling from the gap between the sinking plate 5 and the partition buffer plate 4 due to the lowering of the position of the sinking plate 5.

[0053] Specifically, both ends of the inner side of the outer guard plate 102 are provided with limit plates 1023 for providing height limit for the sinking plate 5, the top surface of the bottom plate 1 is provided with a side rail 104, and the end of the side rail 104 is provided with a main rail 1041 located on the upper part of the outer guard plate 102. The setting of the limit plate 1023 can limit the descending height of the sinking plate 5 to avoid the sinking plate 5 from falling off due to excessive height reduction. The side rail 104 and the main rail 1041 can provide guidance and support for the bottom of the car door, so that the car door can be opened normally.

[0054] Specifically, the interlayer buffer plate 4 is provided with a connecting plate A43 for providing stability for the side rail 104, and the sinking plate 5 is provided with a connecting plate B502 for providing stability for the main rail 1041. According to the setting of the interlayer buffer plate 4, in the normal use stage, the connecting plate A43 and the connecting plate B502 can assist the bottom plate 1 in the installation of the side rail 104 and the main rail 1041, and provide auxiliary support for them, so that the side rail 104 can fall on the top surface of the connecting plate A43, and the main rail 1041 can fall on the top surface of the connecting plate B502. The mounting frames that provide support for the side rail A104 and the main rail 1041 are respectively installed on the top surface of the bottom plate 1 and the limit plate 1023, and the main rail 1041 can be easily disassembled when the sinking plate 5 is lowered to a lower height and put into use.

[0055] Specifically, a mounting plate 202 is provided on the bottom frame 2 and is located at the lower part of the bottom surface of the outer guard plate 102 , and a gear box 6 is provided on the mounting plate 202 .

[0056] Specifically, a spur gear 601 is provided in the gear box 6, and a screw cap 603 located outside the gear box 6 is provided on the spur gear 601. A synchronous gear 602 meshing and matching with the spur gear 601 is also provided in the gear box 6. When a person uses a tool to screw the screw cap 603, the spur gear 601 can synchronously drive the synchronous gears 602 on both sides to rotate.

[0057] Specifically, both ends of the mounting plate 202 are rotatably provided with an adjusting mechanism 7, and the adjusting mechanism 7 includes a transmission rod 704 rotatably assembled with the mounting plate 202, and the transmission rod 704 is provided with a transmission gear 705 located in the gear box 6, and the transmission gear 705 is meshed and matched with the synchronous gear 602. By utilizing the rotation of the synchronous gear 602, the transmission gear 705 can drive the transmission rod 704 to rotate, so that the outer hexagonal rod 703 can drive the inner screw 702 to rotate, so that the threaded rod 701 can be screwed into the inner screw 702, so as to adjust the height position of the sinking plate 5.

[0058] Specifically, the transmission rod 704 is provided with an inner hexagonal cavity 7041, and the sliding sleeve in the inner hexagonal cavity 7041 is provided with an outer hexagonal rod 703. The top of the outer hexagonal rod 703 is provided with an inner screw 702, and the top threaded sleeve of the inner screw 702 is provided with a threaded rod 701 rotatably connected to the bottom surface of the sinking plate 5. The opening of the inner hexagonal cavity 7041 allows the interlayer buffer plate 4 to perform a buffering movement downward due to the action of the buffer 101 when the car stops suddenly due to the falling of the elevator car, so that the sinking plate 5 will also move downward. When the sinking plate 5 sinks, the outer hexagonal rod 703 can generate relative displacement with the transmission rod 704, and the outer hexagonal rod 703 will be inserted downward into the inner hexagonal cavity 7041. Since the opening of the inner hexagonal cavity 7041 is compatible with the external shape of the outer hexagonal rod 703, no relative rotation will occur between the outer hexagonal rod 703 and the transmission rod 704.

[0059] Example 2

[0060] Reference Figure 1-13 The difference between this embodiment and embodiment 1 is that an alignment groove 1021 is provided on the outer guard plate 102, and the top of the alignment groove 1021 is open. Because the manual transmission mechanism 9 needs to pass from the inner end of the inner guard plate 42 to the outer end of the inner guard plate 42, the opening of the alignment groove 1021 can provide space for adjusting the relative height position between the inner guard plate 42 and the outer guard plate 102.

[0061] Specifically, a through hole 423 is provided on the inner guard plate 42, and a locking plate pin 17 is movably mounted inside the through hole 423. A stabilizing groove 4231 is provided at the inner bottom of the through hole 423, and a stabilizing ridge 171 is provided on the bottom surface of the locking plate pin 17 which is slidably matched with the stabilizing groove 4231. The opening of the through hole 423 allows the locking plate pin 17 to pass through, so that the locking plate pin 17 can provide support and locking effect for the sinking plate 5. When the sinking plate 5 needs to be adjusted, the position of the locking plate pin 17 is adjusted to release the height position lock of the sinking plate 5 on the inner side of the inner guard plate 42. When the sinking plate 5 is locked, the top surface of the sinking plate 5 and the top surface of the interlayer buffer plate 4 are in the same plane, which ensures the stability of the personnel standing on the top surface of the interlayer buffer plate 4 and the top surface of the sinking plate 5.

[0062] Specifically, a locking chamber 8 is provided on the inner side of the inner guard plate 42, and a spline groove 81 and a sleeve ring 82 are provided in the locking chamber 8. The locking chamber 8 is installed at one end of the inner side of the inner guard plate 42 and is always in a fixed state, and it will not rotate by itself.

[0063] Specifically, a manual transmission mechanism 9 is rotatably mounted on the inner guard plate 42, and the manual transmission mechanism 9 includes a rotating shaft 901 rotatably mounted with the inner guard plate 42, and a positive ratchet disk 902 is provided at the end of the rotating shaft 901 and is located on the outside of the inner guard plate 42, and an adjustment cavity 903 is provided at the other end of the rotating shaft 901 and is located in the locking chamber 8, and an inner hexagonal slot 904 is provided in the adjusting cavity 903, and a mounting groove 9031 that is rotationally matched with the mounting ring 82 is provided on the outside of the adjusting cavity 903, and the mounting groove 9031 can be rotatably mounted with the mounting ring 82, so that the rotating shaft 901 can rotate smoothly under the support of the adjusting cavity 903, and the opening of the inner hexagonal slot 904 facilitates the insertion of the outer hexagonal screw rod 1104 therein, so as to allow the unlocking mechanism 11 to drive the rotating shaft 901 to rotate.

[0064] Specifically, the adjusting cavity 903 is rotatably fitted with an unlocking mechanism 11, and the unlocking mechanism 11 includes a rotating rod 1101 rotatably fitted with the adjusting cavity 903, a spline cap 1105 located outside the adjusting cavity 903 is provided at the end of the rotating rod 1101, and the spline cap 1105 is slidably fitted with the spline groove 81, and a baffle 1102 located in the adjusting cavity 903 is provided at the other end of the rotating rod 1101, and a tension spring 1103 located between the baffle 1102 and the adjusting cavity 903 is movably fitted on the rotating rod 1101, and an outer hexagonal screw rod 1104 slidably fitted with the inner hexagonal screw slot 904 is provided on the other side of the rotating rod 1101. When the unlocking mechanism 11 is not in use, the spline cap 1105 can be embedded in the spline groove 81, so that the unlocking mechanism 11 will not rotate inside the locking chamber 8, and the outer hexagonal screw rod 1104 The end portion will also be inserted into the inner six-way slot 904, so that the unlocking mechanism 11 will not drive the manual transmission mechanism 9 to rotate. When the manual transmission mechanism 9 needs to be rotated, it is necessary to insert a tool into the hole opened on the spline cap 1105, and then push it to the inside of the locking chamber 8 to separate the spline cap 1105 from the spline groove 81, and the outer six-way twist rod 1104 is completely inserted into the inner six-way slot 904. At this time, the tension spring 1103 is in a stretched state, and then the spline cap 1105 is rotated with a tool, so that the outer six-way twist rod 1104 can drive the adjustment cavity 903 to rotate inside the locking chamber 8, so that the adjustment cavity 903 drives the rotating shaft 901 to rotate, so as to allow the positive pawl plate 902 to cooperate with the positive protrusion 151 to drive the two-way ratchet plate 15 to rotate, so that the second gear 14 can rotate.

[0065] Specifically, an automatic transmission mechanism 12 is provided on the outer side of the inner guard plate 42, and the automatic transmission mechanism 12 includes a reverse pawl plate 1201 rotatably connected to the outer side of the inner guard plate 42, a first gear 1202 is provided on the reverse pawl plate 1201, and a spur rack 13 meshing and matching with the first gear 1202 is provided on the outer side of the outer guard plate 102. The reverse pawl plate 1201 is hollow, and the transmission between the reverse pawl plate 1201 and the first gear 1202 is controlled by the ratchet pawl. Because the positive pawl plate 902 cooperates with the positive protrusion 151 to drive the bidirectional ratchet plate 15 to rotate The direction of rotation of the reverse pawl plate 1201 and the reverse protrusion 152 is opposite to that of the first gear 1202, that is, the first gear 1202 can drive the reverse pawl plate 1201 to rotate, and the rotation of the reverse pawl plate 1201 and the reverse protrusion 152 cannot drive the first gear 1202 to rotate, so that when the forward pawl plate 902 cooperates with the forward protrusion 151 to drive the two-way ratchet plate 15 to rotate, the rotation of the reverse pawl plate 1201 driven by the reverse protrusion 152 will not be transmitted to the first gear 1202, thereby preventing the first gear 1202 from rotating at this time.

[0066] Specifically, a bracket 10 is provided on the bottom surface of the interlayer buffer plate 4, a second gear 14 is provided at the bottom end of the bracket 10, a linkage rod 16 is provided at the top end of the bracket 10, the other end of the linkage rod 16 is rotatably connected to the outer side surface of the inner guard plate 42, and an adjusting gear 161 meshing and matching with the second gear 14 is provided on the linkage rod 16. By utilizing the meshing and matching between the second gear 14 and the adjusting gear 161, the rotation of the second gear 14 can be transmitted to the adjusting gear 161, thereby allowing the linkage rod 16 to rotate.

[0067] Specifically, a reciprocating wire groove 162 is provided on the linkage rod 16, and an adjusting seat 172 which is threadedly mounted with the reciprocating wire groove 162 is provided on the locking plate pin 17. Through the arrangement of the reciprocating wire groove 162, when the positive pawl plate 902 cooperates with the positive protrusion 151 to drive the bidirectional ratchet plate 15 to rotate forward, the second gear 14 and the adjusting gear 161 can be matched, so that the adjusting seat 172 drives the locking plate pin 17 to move, so as to release the height position limitation of the locking plate pin 17 on the sinking plate 5, and the buffer 101 and the spacer are in contact with each other. When the layer buffer plates 4 cooperate with each other to buffer the height drop, the first gear 1202 can mesh and match with the spur rack 13, so that the first gear 1202 can drive the reverse pawl plate 1201 to rotate, thereby matching the reverse pawl plate 1201 with the reverse protrusion 152, so as to allow the two-way ratchet plate 15 to rotate in the opposite direction. Both rotation directions can adjust the position of the locking plate pin 17 in the through hole 423, so that the locking plate pin 17 can provide locking and unlocking operations for the sinking plate 5.

[0068] Specifically, a bidirectional ratchet disk 15 is provided on the second gear 14, and a positive protrusion 151 matching the rotation of the positive ratchet disk 902 and a reverse protrusion 152 matching the rotation of the reverse ratchet disk 1201 are provided in the bidirectional ratchet disk 15. The reverse ratchet disk 1201 is hollow to facilitate the passage of the rotating shaft 901, so that the rotation of the rotating shaft 901 and the rotation of the reverse ratchet disk 1201 do not affect each other.

[0069] For other structures not described, refer to Example 1.

[0070] Working principle: In the present invention, when the car falls, its speed reaches the speed sensor to issue an opening command to the buffer 101, and the buffer 101 is adjusted to the opening state. When the car falls to the bottom of the ladder shaft, the bottom frame 2 will contact the buffer device provided at the bottom of the ladder shaft to provide a buffering effect for the car, and the height of the interlayer buffer plate 4 in the car will also be adjusted. The buffer 101 is used to buffer and adjust the height of the interlayer buffer plate 4 in the car;

[0071] When the elevator is misaligned and suspended in the shaft, and the space between the inner door and the outer door is small, the operator first disassembles the foot guard 103, and then inserts a tool into the hole on the spline cap 1105, and continuously presses the spline cap 1105 toward the inside of the locking chamber 8, so that the outer six-turn rod 1104 can be completely inserted into the inner six-turn slot 904, and then rotates the spline cap 1105, so that the outer six-turn rod 1104 can drive the rotating shaft 901 to rotate, so that the positive pawl plate 902 can cooperate with the positive protrusion 151 to drive the two-way ratchet plate 15 to rotate, so that the second gear 14 and the adjusting gear 161 can rotate and cooperate, so as to allow the adjusting seat 172 to drive the lock plate pin 17 to move, so that the lock plate pin 17 is pulled out from the bottom surface of the sinking plate 5, so that the locking state of the lock plate pin 17 on the sinking plate 5 is released;

[0072] Then, the screw cap 603 is rotated by a tool, so that the spur gear 601 drives the synchronous gear 602 to rotate, and the rotation of the synchronous gear 602 can drive the transmission gear 705 to rotate, so that the transmission rods 704 on both sides of the middle of the sinking plate 5 can rotate synchronously, so that the threaded rod 701 can be screwed into the inner screw rod 702, so that the sinking plate 5 can be lowered inside the inner guard plate 42, so that the hole space for personnel to pass through is increased;

[0073] When the car falls at a relatively fast speed and then hovers in the ladder shaft, the buffer 101 can be in an open state under the action of the speed sensor, and the interlayer buffer plate 4 will generate a buffering movement between the interior of the car and the bottom plate 1, and the synchronous first gear 1202 can be meshed and matched with the spur rack 13, so that the reverse pawl plate 1201 cooperates with the reverse protrusion 152 to drive the two-way ratchet plate 15 to rotate, so that the position of the adjustment seat 172 on the reciprocating wire groove 162 can be adjusted to the tail end, and the length of the spur rack 13 can be adjusted from the front end of the reciprocating wire groove 162 to the tail end of the reciprocating wire groove 162 when the first gear 1202 rotates from its top to its bottom, and the adjustment seat 172 can just move from the front end of the reciprocating wire groove 162 to the tail end of the reciprocating wire groove 162, so that the locking plate pin 17 releases its height position lock on the sinking plate 5, and when the interlayer buffer plate 4 is in the ascending stage of the buffering effect, the meshing and matching rotation between the first gear 1202 and the spur rack 13 cannot drive the reverse pawl plate 1201 to rotate.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An elevator safety control device, comprising a base plate (1), characterized in that: The bottom of the bottom plate (1) is provided with a bottom frame (2), a car frame (201) is provided on the bottom frame (2), a car guard plate (3) is provided on the car frame (201), a buffer (101) is provided on the bottom plate (1), a partition buffer plate (4) is provided at the top end of the output shaft of the buffer (101), a stabilizing frame (41) movably mounted with the car guard plate (3) is provided on the partition buffer plate (4), an outer guard plate (102) is provided on the top surface of the bottom plate (1), and a foot guard plate (103) is provided at the front end of the bottom plate (1); The interlayer buffer plate (4) is provided with a splicing notch (401), the bottom of the interlayer buffer plate (4) is provided with an inner guard plate (42) that is movably mounted with the outer guard plate (102), and a sinking plate (5) is provided inside the inner guard plate (42); The bottom frame (2) is provided with a mounting plate (202) located at the lower part of the bottom surface of the outer guard plate (102), and the mounting plate (202) is provided with a gear box (6); The gear box (6) is provided with a spur gear (601), the spur gear (601) is provided with a screw cap (603) located outside the gear box (6), and the gear box (6) is also provided with a synchronous gear (602) meshing with the spur gear (601); Both ends of the mounting plate (202) are rotatably provided with an adjustment mechanism (7), the adjustment mechanism (7) comprising a transmission rod (704) rotatably fitted with the mounting plate (202), the transmission rod (704) being provided with a transmission gear (705) located in the gear box (6), the transmission gear (705) being meshed and matched with the synchronous gear (602); The transmission rod (704) is provided with an inner hexagonal cavity (7041), a sliding sleeve inside the inner hexagonal cavity (7041) is provided with an outer hexagonal rod (703), an inner screw rod (702) is provided at the top end of the outer hexagonal rod (703), and a threaded sleeve on the top end of the inner screw rod (702) is provided with a threaded rod (701) rotatably connected to the bottom surface of the sinking plate (5); A manual transmission mechanism (9) is rotatably mounted on the inner guard plate (42), the manual transmission mechanism (9) comprising a rotating shaft (901) rotatably mounted on the inner guard plate (42), a positive ratchet disc (902) located outside the inner guard plate (42) being provided at the end of the rotating shaft (901), an adjustment cavity (903) located inside the locking chamber (8) being provided at the other end of the rotating shaft (901), an inner hexagon slot (904) being provided inside the adjustment cavity (903), and a mounting groove (9031) rotatably matched with the mounting ring (82) being provided on the outside of the adjustment cavity (903); The adjusting cavity (903) is rotatably mounted with an unlocking mechanism (11), the unlocking mechanism (111) comprising a rotating rod (1101) rotatably mounted with the adjusting cavity (903), a spline cap (1105) located outside the adjusting cavity (903) is provided at the end of the rotating rod (1101), the spline cap (1105) is slidably mounted with the spline groove (81), a baffle plate (1102) located in the adjusting cavity (903) is provided at the other end of the rotating rod (1101), a tension spring (1103) is movably mounted on the rotating rod (1101) and is located between the baffle plate (1102) and the adjusting cavity (903), and an outer hexagonal screw rod (1104) slidably mounted with the inner hexagonal slot (904) is provided on the other side of the rotating rod (1101); An automatic transmission mechanism (12) is provided on the outer side of the inner guard plate (42), the automatic transmission mechanism (12) comprising a reverse ratchet disc (1201) rotatably connected to the outer side surface of the inner guard plate (42), a first gear (1202) being provided on the reverse ratchet disc (1201), and a spur rack (13) meshing with the first gear (1202) being provided on the outer side of the outer guard plate (102), the reverse ratchet disc (1201) being hollow.

2. An elevator safety control device according to claim 1, characterized in that: A guide groove (1022) is provided on the inner side of the outer guard plate (102), a guide frame (422) movably mounted on the guide groove (1022) is provided on the outer side of the inner guard plate (42), a stabilizing rod (421) is provided on the inner side of the inner guard plate (42), and a stabilizing hole (501) movably mounted on the stabilizing rod (421) is provided on the sinking plate (5).

3. An elevator safety control device according to claim 1, characterized in that: Both ends of the inner side of the outer guard plate (102) are provided with limit plates (1023) for providing height limits for the sinking plate (5); the top surface of the bottom plate (1) is provided with side rails (104); and the ends of the side rails (104) are provided with main rails (1041) located on the upper part of the outer guard plate (102).

4. An elevator safety control device according to claim 3, characterized in that: The interlayer buffer plate (4) is provided with a track connection plate A (43) for providing stability for the side track (104), and the sinking plate (5) is provided with a track connection plate B (502) for providing stability for the main track (1041).

5. An elevator safety control device according to claim 1, characterized in that: The outer guard plate (102) is provided with an alignment groove (1021), and the top of the alignment groove (1021) is open.

6. An elevator safety control device according to claim 1, characterized in that: The inner guard plate (42) is provided with a through hole (423), a locking plate pin (17) is movably mounted inside the through hole (423), a stabilizing groove (4231) is provided at the bottom inside the through hole (423), and a stabilizing convex strip (171) slidably matched with the stabilizing groove (4231) is provided on the bottom surface of the locking plate pin (17).

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