CN212403067U - Failure-prevention elevator safety tongs and elevator - Google Patents
Failure-prevention elevator safety tongs and elevator Download PDFInfo
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- CN212403067U CN212403067U CN202021465883.0U CN202021465883U CN212403067U CN 212403067 U CN212403067 U CN 212403067U CN 202021465883 U CN202021465883 U CN 202021465883U CN 212403067 U CN212403067 U CN 212403067U
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Abstract
The utility model discloses a prevent losing effect elevator safety tongs, including lifting rod, the main pincers body and the vice pincers body, the vice pincers body sets up in main pincers body top, and it has the holding tank to open in the main wedge, and the holding tank opening is equipped with the gyro wheel towards the guide rail in the holding tank, still opens the communicating guiding hole of vice wedge that corresponds with vertical direction in the holding tank, is equipped with the ejector pin in the guiding hole, and the bottom of ejector pin just is connected with the disc in stretching into the holding tank, disc and gyro wheel in close contact with, the top and the nut threaded connection of ejector pin, and the apical pore that has with nut looks adaptation is opened to the bottom of vice wedge, the height that highly is greater than the nut of apical pore. Also discloses an elevator, which adopts the safety tongs. The utility model has the advantages that: by arranging the auxiliary clamp body, when the main clamp body fails, the auxiliary clamp body can play a role in generating braking force. And the elevator adopting the safety tongs has double protection and is safer.
Description
Technical Field
The utility model relates to a prevent losing effect elevator safety tongs and elevator.
Background
The elevator is the transportation equipment that people are commonly used, and high-rise building all uses car elevator especially, and current car elevator all is equipped with safety tongs, but a guide rail generally corresponds and sets up a safety tongs, and when the elevator dropped down suddenly, the safety tongs can be drawn close each other and press from both sides tight guide rail, plays emergency braking's effect, nevertheless because only a safety tongs, in case can produce very big threat to the life of the person of taking in the elevator in failure.
Disclosure of Invention
An object of the utility model is to provide a prevent losing effect elevator safety tongs and elevator can effectively solve current elevator and all have a pair safety tongs, the not enough problem of factor of safety.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the failure-prevention elevator safety tongs comprise a lifting rod, a main tong body and an auxiliary tong body, wherein the auxiliary tong body is arranged above the main tong body, two main wedge blocks which move upwards along the vertical direction under the action of the lifting rod and mutually approach to a clamping guide rail are arranged in the main tong body, each main wedge block is connected with one lifting rod, and two auxiliary wedge blocks which move upwards along the vertical direction and mutually approach to the clamping guide rail are arranged in the auxiliary tong body;
open in the main voussoir has the holding tank, the holding tank opening is towards the guide rail, be equipped with the gyro wheel in the holding tank, the main voussoir still opens the communicating guiding hole of vice voussoir that makes holding tank and vertical direction correspond, be equipped with the ejector pin in the guiding hole, the bottom of ejector pin stretches into in the holding tank and is connected with the disc, disc and gyro wheel in close contact with, the top and the nut threaded connection of ejector pin, open the bottom of vice voussoir has the apical pore with nut looks adaptation, the height that highly is greater than the nut of apical pore.
Preferably, the main clamp body and the auxiliary clamp body are integrally arranged; or the main clamp body and the auxiliary clamp body are fixedly connected through bolts. The integrally arranged main clamp body and the auxiliary clamp body have good rigidity and connection stability, and the safety is higher; the split main clamp body and the split auxiliary clamp body are suitable for improving the existing equipment, the maintenance cost can be reduced, and the main clamp body or the auxiliary clamp body with a fault can be independently replaced.
Preferably, the internal main cavity room that is equipped with of main tong, the inside wall of main cavity room is close to the main cavity middle part from supreme down gradually and forms main spigot surface, be equipped with two in the main cavity room main voussoir, two leave the clearance that lets the guide rail pass through between the main voussoir, two main voussoir all is equipped with the main wedge inclined plane with main spigot surface looks adaptation. When the main wedge block moves under the action of upward force, the main guide surface is contacted with the inclined surface of the main wedge block, and the two main wedge blocks are extruded towards the middle to be close to each other and tightly hold the guide rail for braking.
Preferably, the surface of the main wedge opposite to the guide rail is a plane. The plane is easy to process, is beneficial to reducing the production cost and is convenient to install.
Preferably, the auxiliary clamp body is internally provided with an auxiliary cavity, the inner side wall of the auxiliary cavity is gradually close to the middle part of the auxiliary cavity from bottom to top to form an auxiliary guide surface, two auxiliary wedge blocks are arranged in the auxiliary cavity, a gap for the guide rail to pass through is also reserved between the two auxiliary wedge blocks, and the two auxiliary wedge blocks are both provided with auxiliary wedge inclined surfaces matched with the auxiliary guide surfaces. When the auxiliary wedge block moves upwards under the action of the main wedge block, the auxiliary guide surface contacts with the inclined surface of the auxiliary wedge block to extrude the two auxiliary wedge blocks towards the middle, so that the two auxiliary wedge blocks are close to each other to hold the guide rail tightly for braking.
Preferably, the surface of the auxiliary wedge block opposite to the guide rail is a plane.
Preferably, the lifting rod is fixedly connected with the bottom of the corresponding main wedge block. The lifting rod generates upward thrust to push the main wedge blocks to close.
Preferably, the cross section of the nut is a regular polygon, the cross section of the top hole is the same as that of the nut, and the top of the nut is in close contact with the top of the top hole. Regular polygon is easy to process and is not easy to slip the nut and the top hole.
Preferably, the roller comprises a roller shaft, a mandrel and two rubber wheels, the mandrel is fixed on the roller shaft, the rubber wheels are respectively fixed on the roller shafts at two ends of the mandrel, one of the rubber wheels is in close contact with the disc, the circle center of the disc is not overlapped with the rubber wheel, and the diameter of the mandrel is smaller than that of the rubber wheel. The tight contact of a rubber wheel and the disc eccentricity guarantees that the rubber wheel can drive the disc to rotate, so that the relative position of the nut rises to jack up the auxiliary clamp body, the diameter of the mandrel is larger than that of the rubber wheel, and the mandrel cannot interfere with the rotation of the disc when the roller rotates.
An elevator adopts above-mentioned elevator safety tongs of preventing becoming invalid.
Compared with the prior art, the utility model has the advantages that: through setting up vice pincers body, when the main pincers body became invalid, the drive gyro wheel continued to roll, and the gyro wheel will drive the disc and rotate to make the ejector pin take place to rotate, because the nut can not rotate, so the nut takes place to remove with the ejector pin vertical direction, pushes up vice pincers body, makes the interval between two vice pincers bodies reduce, and two vice pincers bodies will hug closely the guide rail, begin to the braking, thereby vice pincers body performance braking effect when the main pincers body became invalid has ensured the safety of car. After the elevator adopts above-mentioned structure, for ordinary elevator dual guarantee has been had occasionally in the inefficacy, ensure car safety.
Drawings
FIG. 1 is a structural view of the failure-proof elevator safety gear of the present invention;
FIG. 2 is a schematic view of the structure A-A in FIG. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1 and 2, the embodiment of the failure-prevention elevator safety gear and the elevator of the present invention, the failure-prevention elevator safety gear comprises a lifting rod 1, a main gear body 2 and an auxiliary gear body 3, wherein the auxiliary gear body 3 is arranged above the main gear body 2, two main wedges 5 moving upward along a vertical direction under the action of the lifting rod 1 and approaching to a clamping guide rail 4 are arranged in the main gear body 2, each main wedge 5 is connected with one lifting rod 1, and two auxiliary wedges 6 moving upward along a vertical direction and approaching to the clamping guide rail 4 are arranged in the auxiliary gear body 3;
there is holding tank 20 in the main voussoir 5, holding tank 20 opening is towards guide rail 4, be equipped with gyro wheel 21 in the holding tank, the holding tank is stretched out to the gyro wheel part to can drive the gyro wheel with the guide rail contact and rotate in the follow-up operation, main voussoir 5 has still opened the communicating guiding hole 22 of vice voussoir 6 that makes holding tank 20 correspond with vertical direction, be equipped with ejector pin 23 in the guiding hole 22, the bottom of ejector pin 23 is stretched into in holding tank 20 and is connected with disc 24, disc 24 and gyro wheel 21 in close contact with, the top and the nut 25 threaded connection of ejector pin 23, the apical pore 26 with nut 25 looks adaptation is opened to the bottom of vice voussoir 6.
Through setting up vice pincers body, when the main pincers body became invalid, the drive gyro wheel continued to roll, and the gyro wheel will drive the disc and rotate to make the ejector pin take place to rotate, because the nut can not rotate, so the nut takes place to remove with the ejector pin vertical direction, pushes up vice pincers body, makes the interval between two vice pincers bodies reduce, and two vice pincers bodies will hug closely the guide rail, begin to the braking, thereby vice pincers body performance braking effect when the main pincers body became invalid has ensured the safety of car. After the elevator adopts above-mentioned structure, for ordinary elevator dual guarantee has been had occasionally in the inefficacy, ensure car safety.
Generally, it is preferable that the main clamp body 2 and the auxiliary clamp body 3 are manufactured integrally, so that the safety and the stability are relatively high, and of course, the main clamp body 2 and the auxiliary clamp body 3 can be separately arranged and connected through bolts, so that the old equipment is convenient to reform, and the maintenance cost is also favorably reduced.
To the structure of the main tong body 2, be equipped with main cavity room 7 in the main tong body 2, the inside wall of main cavity room 7 is close to formation main spigot surface 8 from supreme to main cavity room 7 middle part gradually down, be equipped with two in the main cavity room 7 main voussoir 5, two leave the clearance that lets guide rail 4 pass through between the main voussoir 5, two main voussoir 5 all is equipped with the main wedge inclined plane 9 with 8 looks adaptations of main spigot surface, main voussoir 5 is the plane with the relative face of guide rail 4, and it also can understand for main cavity room 7 is the four terrace with edges on only one inclined plane, and main voussoir 5 is the four terrace with edges on only one inclined plane, and the track of main voussoir 5 upward movement can also be controlled in the time of providing main voussoir 5 lateral force to such design, guarantees that main voussoir 5 can not take place the rotation when the motion, makes main vous. The gap between the two main wedges 5 allows the guide rail to pass through when the elevator normally moves, and when emergency braking is needed, the two main wedges are close to each other, and the gap gradually disappears.
Similarly, the structure of the auxiliary clamp body 3 is similar to that of the main clamp body 2, an auxiliary cavity 10 is arranged in the auxiliary clamp body 3, the inner side wall of the auxiliary cavity 10 is gradually close to the middle of the auxiliary cavity 10 from bottom to top to form an auxiliary guide surface 11, two auxiliary wedge blocks 6 are arranged in the auxiliary cavity 10, a gap for the guide rail 4 to pass through is also reserved between the two auxiliary wedge blocks 6, the two auxiliary wedge blocks 6 are both provided with auxiliary wedge inclined surfaces 12 matched with the auxiliary guide surfaces 11, and the surfaces of the auxiliary wedge blocks 6 opposite to the guide rail 4 are planes.
In the design, the lifting rod 1 is fixedly connected with the bottom of the corresponding main wedge block 5, and when the car falls, the lifting rod 1 moves upwards to push the main wedge block 5 upwards, so that the main wedge block 5 clamps the guide rail 4 for braking.
In order to enable the nut 25 and the ejector rod 23 to generate relative movement in the vertical direction when the ejector rod 23 rotates, the cross section of the nut 25 is a regular polygon, the cross section of the top hole 26 is the same as that of the nut 25, the top of the nut 25 is in close contact with the top of the top hole 26, the cross section of the nut 25 is generally a regular hexagon, and in order to lengthen the relative movement distance between the nut 25 and the ejector rod 23, the nut 25 can be made as long as possible in the height direction, so that a long movement stroke can be obtained.
The roller 21 needs to drive the disc 24 to rotate when rolling, so the roller 21 generally comprises a roller 27, a mandrel 28 and two rubber wheels 29, the mandrel 28 is fixed on the roller 27, the roller 27 at two ends of the mandrel 28 is respectively fixed with one rubber wheel 29, one rubber wheel 29 is tightly contacted with the disc 24, the circle center of the disc 24 is not overlapped with the rubber wheel 29, and the diameter of the mandrel 28 is smaller than that of the rubber wheel 29, so that the disc 24 is driven to rotate when the rubber wheel 29 of the roller is contacted with the guide rail 4 to rotate, and the ejector rod 23 is driven to rotate relative to the nut 25.
The utility model also discloses an elevator adopts above-mentioned technical scheme's elevator safety tongs of preventing becoming invalid.
When the lifting device is used, the lifting rod 1 is installed, if the lift car falls, the lifting rod 1 pushes the main wedges 5 to move upwards, the two main wedges 5 are close to each other under the action of the main guide surface 8 to clamp the guide rail 4, in the process, the main wedges 5 move upwards to drive the ejector rod 23 to move upwards, meanwhile, the main clamp body 2 is clamped on the guide rail 4 and cannot stand immediately, the roller 21 also rotates, the driving disc 24 drives the ejector rod 23 to rotate, so that the nut 25 and the ejector rod 23 can move relatively in the vertical direction, in order to eliminate the influence on the auxiliary wedge 6, the auxiliary wedge 6 cannot be in contact with the guide rail 4, the numerical value that the height of the ejection hole is larger than the height of the nut is calculated, namely, the height difference between the ejection hole and the nut is larger than the sum of the lifting height of the main wedges when braking and the lifting height of the nut relative to the ejector rod when braking, the auxiliary clamp body 3 does not play a role when the main clamp body 2 brakes, the loss of the auxiliary caliper body 3 caused by braking is reduced, and the main caliper body 2 can also play a role after braking, so that the braking distance and the braking time are shortened. If the main caliper body 2 fails and the car descends continuously, the roller 21 drives the disc 24 to rotate continuously, the ejector rod 23 also rotates continuously relative to the nut 25, the nut 25 moves upwards to jack the auxiliary wedge block 6 upwards, the distance component between the two auxiliary wedge blocks 6 is reduced due to the interaction of the auxiliary guide surface 11 and the auxiliary wedge inclined surface 12, the two auxiliary wedge blocks 6 clamp the guide rail 4 tightly, braking is started, and the car stops falling. Therefore, after the main clamp body 2 fails, the auxiliary clamp body 3 plays a role, and the safety of the elevator is ensured.
The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (10)
1. Prevent elevator safety tongs that became invalid, its characterized in that: the clamp comprises a lifting rod (1), a main clamp body (2) and an auxiliary clamp body (3), wherein the auxiliary clamp body (3) is arranged above the main clamp body (2), two main wedge blocks (5) which move upwards along the vertical direction under the action of the lifting rod (1) and mutually approach to a clamping guide rail (4) are arranged in the main clamp body (2), each main wedge block (5) is connected with one lifting rod (1), and two auxiliary wedge blocks (6) which move upwards along the vertical direction and mutually approach to the clamping guide rail (4) are arranged in the auxiliary clamp body (3);
holding tank (20) have been seted up in main voussoir (5), holding tank (20) opening is towards guide rail (4), be equipped with gyro wheel (21) in the holding tank, main voussoir (5) have still been opened and have made holding tank (20) and the communicating guiding hole (22) of vice voussoir (6) that vertical direction corresponds, be equipped with ejector pin (23) in guiding hole (22), the bottom of ejector pin (23) is stretched into in holding tank (20) and is connected with disc (24), disc (24) and gyro wheel (21) in close contact with, the top and nut (25) threaded connection of ejector pin (23), top hole (26) with nut (25) looks adaptation are opened to the bottom of vice voussoir (6), the height of top hole is greater than the height of nut.
2. The fail-safe elevator safety gear set of claim 1, wherein: the main clamp body (2) and the auxiliary clamp body (3) are integrally arranged; or the main clamp body (2) and the auxiliary clamp body (3) are fixedly connected through bolts.
3. The fail-safe elevator safety gear set of claim 1, wherein: be equipped with main cavity room (7) in the main tong body (2), the inside wall of main cavity room (7) is from supreme being close to formation main spigot surface (8) to main cavity room (7) middle part gradually down, be equipped with two in main cavity room (7) main voussoir (5), two leave the clearance that lets guide rail (4) pass through between main voussoir (5), two main voussoir (5) all are equipped with main wedge inclined plane (9) with main spigot surface (8) looks adaptation.
4. The fail-safe elevator safety gear set of claim 3, wherein: the surface of the main wedge block (5) opposite to the guide rail (4) is a plane.
5. The fail-safe elevator safety gear set of claim 1, wherein: be equipped with vice cavity (10) in vice pincers body (3), the inside wall of vice cavity (10) is close to formation vice spigot surface (11) from supreme down to vice cavity (10) middle part gradually, be equipped with two in vice cavity (10) vice voussoir (6), two also leave the clearance that lets guide rail (4) pass through between vice voussoir (6), two vice voussoir (6) all are equipped with vice wedge inclined plane (12) with vice spigot surface (11) looks adaptation.
6. The fail-safe elevator safety gear set of claim 5, wherein: the surface of the auxiliary wedge block (6) opposite to the guide rail (4) is a plane.
7. The fail-safe elevator safety gear set of claim 1, wherein: the lifting rod (1) is fixedly connected with the bottom of the corresponding main wedge block (5).
8. The fail-safe elevator safety gear set of claim 1, wherein: the cross section of the nut (25) is a regular polygon, the cross section of the top hole (26) is the same as that of the nut (25), and the top of the nut (25) is tightly contacted with the top of the top hole (26).
9. The fail-safe elevator safety gear set of claim 1, wherein: the roller (21) comprises a roller (27), a mandrel (28) and two rubber wheels (29), the mandrel (28) is fixed on the roller (27), the roller (27) at the two ends of the mandrel (28) is respectively fixed with one rubber wheel (29), one of the rubber wheels (29) is in close contact with the disc (24), the circle center of the disc (24) is not overlapped with the rubber wheels (29), and the diameter of the mandrel (28) is smaller than that of the rubber wheels (29).
10. An elevator characterized in that: use of the fail safe elevator safety gear of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021465883.0U CN212403067U (en) | 2020-07-20 | 2020-07-20 | Failure-prevention elevator safety tongs and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021465883.0U CN212403067U (en) | 2020-07-20 | 2020-07-20 | Failure-prevention elevator safety tongs and elevator |
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| Publication Number | Publication Date |
|---|---|
| CN212403067U true CN212403067U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021465883.0U Withdrawn - After Issue CN212403067U (en) | 2020-07-20 | 2020-07-20 | Failure-prevention elevator safety tongs and elevator |
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| CN (1) | CN212403067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111776911A (en) * | 2020-07-20 | 2020-10-16 | 台州学院 | Failure-prevention elevator safety tongs and elevator |
-
2020
- 2020-07-20 CN CN202021465883.0U patent/CN212403067U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111776911A (en) * | 2020-07-20 | 2020-10-16 | 台州学院 | Failure-prevention elevator safety tongs and elevator |
| CN111776911B (en) * | 2020-07-20 | 2024-05-03 | 台州学院 | Failure-proof elevator safety tongs and elevator |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210126 Effective date of abandoning: 20240503 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210126 Effective date of abandoning: 20240503 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |