CN221070561U - Double overload protection device for elevator - Google Patents
Double overload protection device for elevator Download PDFInfo
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- CN221070561U CN221070561U CN202323289201.1U CN202323289201U CN221070561U CN 221070561 U CN221070561 U CN 221070561U CN 202323289201 U CN202323289201 U CN 202323289201U CN 221070561 U CN221070561 U CN 221070561U
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- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000007246 mechanism Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an elevator overload double-protection device, which comprises a car bottom beam and a car bottom plate, wherein car bottom rubber is arranged between the car bottom beam and the car bottom plate, a distance sensor and a micro switch are respectively arranged on a first mounting bracket, a second mounting bracket is detachably arranged on the lower surface of the car bottom plate, and a switch protection plunger with an elastic protection effect is arranged on the second mounting bracket; the utility model mainly comprises a distance sensor, a micro switch and a switch protection plunger, wherein the distance sensor and the micro switch are arranged on a car bottom beam through a first mounting bracket, the switch protection plunger is arranged on a car bottom plate through a second mounting bracket, car bottom rubber is arranged between the car bottom plate and the car bottom beam, the structure is simple, and the first mounting bracket and the second mounting bracket can be mounted or dismounted only from the bottom of the car during mounting and maintenance, thereby bringing convenience to the maintenance after the elevator.
Description
Technical Field
The utility model relates to the technical field of elevator overload protection, in particular to an elevator overload double-protection device.
Background
When the elevator operates, in order to improve the operation safety of the elevator, an overload protection device is usually installed according to the load of the elevator, and the elevator overload protection device can give an alarm and stop the operation of the elevator when the car exceeds the allowable load, so that potential accidents are prevented, and the safety of passengers and elevator equipment is protected.
The elevator overload protection device on the market at present adopts the sensor to realize generally, the sensor sets up in fag end or sedan-chair end position generally, like patent document application number 201920514428.6, disclose an elevator overload protection device, including the car, fixedly connected with alarm on the inner wall of car, the inside bottom of car is equipped with the bearing plate, the bottom fixedly connected with first coupling mechanism of bearing plate, second coupling mechanism, supporting mechanism and alarm mechanism, first coupling mechanism comprises sleeve and fixed column, telescopic bottom and car fixed connection, telescopic inside bottom fixedly connected with distance sensor, the one end of fixed column is located the sleeve and fixedly connected with stopper. This elevator overload protection device has played dual warning's effect through setting up distance sensor and alarm mechanism, and when one of them had a fault, still can reach the effect of reporting to the police, through setting up first coupling mechanism and second coupling mechanism, played stable fixed action to the bearing plate, improved the life of device.
However, the overload protection device of the elevator is complex to install and difficult to maintain, and if the overload device fails, the bottom plate needs to be jacked up for replacement, which brings inconvenience to the maintenance of the elevator, so that we need to propose an overload double protection device of the elevator to solve the problems.
Disclosure of utility model
The utility model aims to provide an overload double-protection device for an elevator, which mainly comprises a distance sensor, a micro switch and a switch protection plunger, wherein the distance sensor and the micro switch are arranged on a car bottom beam through a first mounting bracket, the switch protection plunger is arranged on a car bottom plate through a second mounting bracket, car bottom rubber is arranged between the car bottom plate and the car bottom beam, the structure is simple, and the first mounting bracket and the second mounting bracket can be arranged or detached only from the bottom of the car during installation and maintenance, so that convenience is brought to the post-maintenance of the elevator, and the problems in the background technology are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an elevator overload double protection device, includes car sill and car bottom plate, install car end rubber between car sill and the car bottom plate, one side demountable installation of car sill has first installing support, install distance sensor and micro-gap switch on the first installing support respectively, the lower surface demountable installation of car bottom plate has the second installing support, install the switch protection plunger that has elastic protection effect on the second installing support, just switch protection plunger is the setting of registering with micro-gap switch, the lower extreme of switch protection plunger is contradicted micro-gap switch's upper end when the car bottom plate is overweight, the lower extreme of switch protection plunger has the clearance with micro-gap switch's upper end when the car bottom plate is overweight.
Preferably, the side of the first mounting bracket is in a Z-shaped arrangement, one side of the first mounting bracket is fixed with the car bottom beam through bolts, and screw holes for installing the bolts are formed in the car bottom beam and the first mounting bracket.
Preferably, the bottom of first installing support all is provided with the mounting notch that supplies distance sensor and micro-gap switch to install, distance sensor and micro-gap switch pass through the screw fixation in the bottom of first installing support.
Preferably, the switch protection plunger comprises a cylinder and a connecting rod, the cylinder is fixed on the second mounting bracket, one end of the connecting rod is slidably inserted into the cylinder, a spring is mounted at one end of the connecting rod located in the cylinder, and a contact is fixed at the other end of the connecting rod.
Preferably, the side of second installing support is Z shape setting, the upper end of second installing support passes through the lower surface fixed of screw and car bottom plate, the lower extreme at the second installing support is installed to the switch protection plunger.
Preferably, the distance sensor is an ultrasonic distance measuring sensor, and a radio frequency chip is arranged in the ultrasonic distance measuring sensor.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model mainly comprises a distance sensor, a micro switch and a switch protection plunger, wherein the distance sensor and the micro switch are arranged on a car bottom beam through a first mounting bracket, the switch protection plunger is arranged on a car bottom plate through a second mounting bracket, car bottom rubber is arranged between the car bottom plate and the car bottom beam, the structure is simple, and the first mounting bracket and the second mounting bracket can be mounted or dismounted only from the bottom of the car during mounting and maintenance, thereby bringing convenience to the maintenance after the elevator.
2. According to the utility model, the overload of the car is doubly protected by the cooperation of the distance sensor and the micro switch, the downward displacement of the car bottom plate is monitored by the distance sensor, the micro switch does not act, and if the distance sensor fails, the car bottom plate compresses car bottom rubber when the car is overloaded, so that the car bottom plate drives the switch protection plunger to move downward to trigger the micro switch to act, and the double protection of the overload of the car is achieved.
3. According to the utility model, through the elastic protection characteristic of the switch protection plunger, extra stroke protection can be provided for the micro switch so as to prevent the damage to the switch when the car is impacted.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a switch protection plunger according to the present utility model;
Fig. 3 is a circuit diagram of a distance sensor according to the present utility model.
In the figure: 1. a car floor; 2. a car bottom rubber; 3. a car sill; 4. a first mounting bracket; 5. a micro-switch; 6. a switch protection plunger; 601. a column; 602. a connecting rod; 603. a contact; 7. a distance sensor; 8. and a second mounting bracket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the double overload protection device for the elevator comprises a car bottom beam 3 and a car bottom plate 1, wherein car bottom rubber 2 is arranged between the car bottom beam 3 and the car bottom plate 1, a first mounting bracket 4 is detachably arranged on one side of the car bottom beam 3, a distance sensor 7 and a micro switch 5 are respectively arranged on the first mounting bracket 4, a second mounting bracket 8 is detachably arranged on the lower surface of the car bottom plate 1, a switch protection plunger 6 with an elastic protection effect is arranged on the second mounting bracket 8, the switch protection plunger 6 is aligned with the micro switch 5, the lower end of the switch protection plunger 6 abuts against the upper end of the micro switch 5 when the car bottom plate 1 is overweight, and a gap exists between the lower end of the switch protection plunger 6 and the upper end of the micro switch 5 when the car bottom plate 1 is not overweight;
The overload double protection device mainly comprises a distance sensor 7, a micro switch 5 and a switch protection plunger 6, wherein the distance sensor 7 and the micro switch 5 are arranged on a car bottom beam 3 through a first mounting bracket 4, the switch protection plunger 6 is arranged on a car bottom plate 1 through a second mounting bracket 8, car bottom rubber 2 is arranged between the car bottom plate 1 and the car bottom beam 3, the structure is simple, and the first mounting bracket 4 and the second mounting bracket 8 can be installed or detached only from the bottom of a car during installation and maintenance, so that convenience is brought to elevator post-maintenance.
The side of first installing support 4 is Z shape setting, and one side of first installing support 4 is fixed with car sill beam 3 through the bolt, and all has offered the screw that supplies the bolt to install on car sill beam 3 and the first installing support 4, is convenient for use the bolt to install first installing support 4 on car sill beam 3 from the car bottom, improves the convenience of first installing support 4 installation.
The bottom of first installing support 4 all is provided with the installation notch that supplies distance sensor 7 and micro-gap switch 5 to install, and distance sensor 7 and micro-gap switch 5 pass through the screw fixation in the bottom of first installing support 4, make between distance sensor 7 and micro-gap switch 5 and the first installing support 4 for dismantling the setting, when distance sensor 7 or micro-gap switch 5 have one to appear damaging, be convenient for change distance sensor 7 or micro-gap switch 5.
The switch protection plunger 6 includes cylinder 601 and connecting rod 602, and cylinder 601 is fixed on second installing support 8, and the one end of connecting rod 602 is slided and is pegged graft in the inside of cylinder 601, and the spring is installed to the one end that connecting rod 602 is located the cylinder 601 inside, and the other end of connecting rod 602 is fixed with contact 603, makes connecting rod 602 have certain resilience by the resilience of spring, when contact 603 contradicts micro-gap switch 5, makes micro-gap switch 5 provide reverse effort for contact 603 by the resilience of spring to provide extra stroke protection to micro-gap switch 5, damages the switch when preventing the car from receiving the impact.
The side of second installing support 8 is Z shape setting, and the upper end of second installing support 8 passes through the lower fixed surface of screw and car bottom plate 1, and switch protection plunger 6 installs the lower extreme at second installing support 8, makes second installing support 8 and car bottom plate 1 be the detachable setting, is convenient for install or dismantle second installing support 8.
As shown in fig. 3, the distance sensor 7 is set as an ultrasonic distance sensor, the ultrasonic distance sensor is internally provided with a radio frequency chip U3, four pins of the radio frequency chip U3 are connected in parallel with an inductor L2 and a capacitor C13, the connecting end of the inductor L2 and the capacitor C13 is connected with a capacitor C11 with one end grounded, eight pins of the radio frequency chip U3 are connected with a resistor R9 with one end grounded, a capacitor C12 is connected between seven pins and six pins of the radio frequency chip U3, three pins and one pin of the radio frequency chip U3 are connected with a resistor R8, one pin of the radio frequency chip U3 is connected with a resistor R7, one end of the resistor R7 is connected with an inductor L1, one end of the inductor L1 is connected with a capacitor C9, one end of the capacitor C9 is connected with a buzzer, nine pins of the inductor L1 and the radio frequency chip U3 are connected with a capacitor C14 with one end grounded, when a signal encounters a car 1 and is reflected back, a signal reflected by the car is received, the car 3 can be controlled by a distance sensor, the distance sensor is reasonably loaded from the car sensor to the car, and the distance sensor is controlled by a corresponding distance sensor, and the distance sensor is controlled by a distance sensor.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an elevator overload double protection device, includes car sill (3) and car bottom plate (1), its characterized in that: install sedan-chair end rubber (2) between sedan-chair floorplan (3) and sedan-chair bottom plate (1), one side demountable installation of sedan-chair floorplan (3) has first installing support (4), install distance sensor (7) and micro-gap switch (5) on first installing support (4) respectively, the lower surface demountable installation of sedan-chair bottom plate (1) has second installing support (8), install on second installing support (8) switch protection plunger (6) that have elasticity protection effect, just switch protection plunger (6) are the setting of aligning with micro-gap switch (5), the upper end of micro-gap switch (5) is contradicted in the lower extreme of switch protection plunger (6) when sedan-chair bottom plate (1) overweight, the lower extreme of switch protection plunger (6) has the clearance with the upper end of micro-gap switch (5) when sedan-chair bottom plate (1) is overweight.
2. The elevator overload double protection device according to claim 1, wherein: the side of first installing support (4) is Z shape setting, one side of first installing support (4) is fixed with car floorbar (3) through the bolt, just all offer the screw that supplies the bolt to install on car floorbar (3) and the first installing support (4).
3. The elevator overload double protection device according to claim 2, wherein: the bottom of first installing support (4) all is provided with the installation notch that supplies distance sensor (7) and micro-gap switch (5) to install, distance sensor (7) and micro-gap switch (5) pass through the bottom of screw fixation at first installing support (4).
4. An elevator overload double protection device according to claim 3, characterized in that: the switch protection plunger (6) comprises a cylinder (601) and a connecting rod (602), wherein the cylinder (601) is fixed on a second mounting bracket (8), one end of the connecting rod (602) is slidably inserted into the cylinder (601), a spring is mounted at one end of the connecting rod (602) located in the cylinder (601), and a contact (603) is fixed at the other end of the connecting rod (602).
5. The elevator overload double protection device of claim 4, wherein: the side of second installing support (8) is Z shape setting, the upper end of second installing support (8) is fixed with the lower surface of car bottom plate (1) through the screw, switch protection plunger (6) are installed in the lower extreme of second installing support (8).
6. The elevator overload double protection device according to claim 1, wherein: the distance sensor (7) is arranged as an ultrasonic distance measuring sensor, and a radio frequency chip is arranged in the ultrasonic distance measuring sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323289201.1U CN221070561U (en) | 2023-12-04 | 2023-12-04 | Double overload protection device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323289201.1U CN221070561U (en) | 2023-12-04 | 2023-12-04 | Double overload protection device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221070561U true CN221070561U (en) | 2024-06-04 |
Family
ID=91252126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323289201.1U Active CN221070561U (en) | 2023-12-04 | 2023-12-04 | Double overload protection device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221070561U (en) |
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2023
- 2023-12-04 CN CN202323289201.1U patent/CN221070561U/en active Active
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