An elevator pit maintenance and protection device

Abstract

The present invention discloses an elevator pit maintenance and protection device. Firstly, a bracket maintenance component and a buffer protection component cooperate with each other, which not only supports the elevator pit and improves the compressive strength of the elevator pit, but also can buffer the elevator car falling from above, thereby improving the protection of people inside the car and maintenance personnel in the elevator pit below. Secondly, an electric slide rail can drive the first stepper motor to slide left and right, the first stepper motor can drive the first support arm to rotate, the second stepper motor can drive the second support arm to rotate, and the electric push rod can drive the cutter to rise and fall, which is beneficial for the cutter to cut the bottom of the elevator car above, and is convenient for rescuing people inside the elevator in an emergency. Finally, buffer shock absorbers are distributed at the four corners of the bracket maintenance component, which can dampen and buffer the impact from above. A buffer spring is provided between the first connecting plate and the second connecting plate, which can further achieve damping and buffering, thereby effectively reducing the damage degree of the elevator car above.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator pit maintenance, and in particular to an elevator pit maintenance protection device. Background Art

[0002] With the development of urbanized buildings, elevators have entered various office areas and residential areas, greatly improving people's travel efficiency and facilitating people's lives. During the installation and use of elevators, elevator maintenance personnel often need to enter the elevator pit to perform maintenance work.

[0003] According to the above, the current elevator pit lacks protection measures, which not only affects the pressure resistance and life, but also easily brings great safety risks to the maintenance personnel and the people inside the elevator car once the elevator car falls during the maintenance process. Therefore, in view of the above defects, it is necessary to design an elevator pit maintenance protection device. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an elevator pit maintenance and protection device to solve the problem raised by the background technology.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: an elevator pit maintenance and protection device, including a bracket maintenance assembly and a buffer protection assembly, the bracket maintenance assembly is composed of a support frame, an electric slide rail, a first stepper motor, a first support arm, a second stepper motor, a second support arm, an electric push rod, a cutter and a circuit detector, the buffer protection assembly is composed of a buffer shock absorber, a first connecting plate, a buffer spring and a second connecting plate, the buffer protection assembly is slidably arranged on the top of the bracket maintenance assembly, the buffer protection assembly and the bracket maintenance assembly are connected by an up and down sliding connection, the electric slide rail is fixedly arranged on the rear side of the upper end of the support frame, the electric slide rail is connected to the support frame by welding, the first stepper motor is fixedly arranged at the bottom of the electric slide rail, the first stepper motor is connected to the electric slide rail by bolts, the first support arm is fixedly arranged at the bottom front end of the first stepper motor, the first support arm is connected to the first stepper motor by bolts, the second stepper motor is fixedly arranged at the front end of the first support arm, and the second stepper motor is fixedly arranged at the first support arm by Bolt connection, the second support arm is fixed on the right side of the top of the second stepper motor, the second support arm and the second stepper motor are connected by bolts, the electric push rod is fixed on the right side of the second support arm, the electric push rod and the second support arm are connected by bolts, the cutter is fixed on the top of the electric push rod, the cutter and the electric push rod are connected by bolts, the circuit detector is fixed on the left and right sides of the upper end of the support frame, the circuit detector and the support frame are connected by bolts, the number of the buffer shock absorbers is four, the buffer shock absorbers are distributed at the four corners of the upper end of the support frame, the buffer shock absorber and the support frame are connected by up and down sliding, the first connecting plate is fixed on the top of the buffer shock absorber, the first connecting plate and the buffer shock absorber are connected by welding, the number of the buffer springs is several, the buffer springs are evenly fixed around the top of the first connecting plate, the buffer spring and the first connecting plate are connected by welding, the second connecting plate is fixed on the top of the buffer spring, and the second connecting plate and the buffer spring are connected by welding.

[0006] Furthermore, the left and right sides, the front and rear ends and the top of the support frame are also provided with air avoidance holes, and the air avoidance holes are rectangular through holes.

[0007] Furthermore, guide grooves are provided at the four corners inside the support frame. The guide grooves are rectangular grooves, and the guide grooves are connected to the buffer shock absorber by sliding up and down.

[0008] Furthermore, sleeves are fixedly provided on the left and right sides of the lower end of the inner wall of the support frame, and the sleeves are connected to the support frame by welding. A reinforcing plate is also fixedly provided on the top of the sleeves, and the reinforcing plate is connected to the sleeves by welding, and the reinforcing plate is connected to the support frame by welding.

[0009] Furthermore, pressure sensors are fixedly provided on the left and right sides of the top of the support frame, and the pressure sensors are connected to the support frame by bolts.

[0010] Furthermore, an alarm is fixedly provided on the right side of the front end of the support frame, the alarm is connected to the support frame by bolts, and the alarm is connected to the pressure sensor by an electrical signal line.

[0011] Furthermore, a PLC control panel is fixedly provided on the left side of the front end of the support frame. The PLC control panel is connected to the support frame by bolts, and the PLC control panel is respectively connected to the electric slide rail, the first stepper motor, the second stepper motor, the electric push rod, the cutter, the pressure sensor, the alarm and the circuit detector by electrical signal lines.

[0012] Furthermore, a backup power supply is fixedly provided on the left side of the front end of the support frame, and the backup power supply is connected to the support frame by bolts, and the backup power supply is respectively connected to the electric slide rail, the first stepper motor, the second stepper motor, the electric push rod, the cutter, the pressure sensor, the alarm, the circuit detector and the PLC control panel by power cords.

[0013] Compared with the prior art, this elevator pit maintenance and protection device has the following advantages:

[0014] 1. First, the support maintenance component and the buffer protection component cooperate with each other, which not only supports the elevator pit and improves the compressive strength of the elevator pit, but also can buffer and reduce the shock of the elevator car falling from above, thereby improving the protection of the people inside the car and the maintenance personnel in the elevator pit below;

[0015] 2. Secondly, the electric slide rail can drive the first stepper motor to slide left and right, the first stepper motor can drive the first support arm to rotate, the second stepper motor can drive the second support arm to rotate, and the electric push rod can drive the cutter to move up and down. Through the above, the cutter is conducive to cutting the bottom of the elevator car above, which is convenient for rescuing people inside the elevator car in an emergency;

[0016] 3. Finally, there are four buffer shock absorbers distributed at the four corners of the bracket maintenance assembly, which can absorb and buffer the impact from above. A number of buffer springs are arranged between the first connecting plate and the second connecting plate, which can further achieve the purpose of shock absorption and buffering, and effectively reduce the degree of damage to the elevator car above. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of an elevator pit inspection and protection device;

[0018] Figure 2 It is a three-dimensional elevator pit maintenance and protection device. Figure 1 ;

[0019] Figure 3 It is a three-dimensional elevator pit maintenance and protection device. Figure 2 ;

[0020] Figure 4 It is a three-dimensional separation state of the elevator pit maintenance and protection device. Figure 1 ;

[0021] Figure 5 It is a three-dimensional separation state of the elevator pit maintenance and protection device. Figure 2 ;

[0022] Figure 6 It is a three-dimensional enlarged view of the bracket maintenance assembly.

[0023] Bracket maintenance assembly 1, buffer protection assembly 2, support frame 11, electric slide rail 12, first stepper motor 13, first support arm 14, second stepper motor 15, second support arm 16, electric push rod 17, cutter 18, circuit detector 19, buffer shock absorber 21, first connecting plate 22, buffer spring 23, second connecting plate 24, air avoidance hole 111, guide groove 112, sleeve 113, reinforcement plate 113, pressure sensor 114, alarm 115, PLC control panel 116, backup power supply 117.

[0024] The following specific implementation manner will be further described in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] In the following text, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments; however, it will be apparent to those skilled in the art that the described embodiments may be practiced without some or all of these specific details, and in other cases, well-known processing steps are not specifically described.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, an elevator pit maintenance and protection device includes a bracket maintenance component 1, a buffer protection component 2, a support frame 11, an electric slide rail 12, a first stepper motor 13, a first support arm 14, a second stepper motor 15, a second support arm 16, an electric push rod 17, a cutter 18, a circuit detector 19, a buffer shock absorber 21, a first connecting plate 22, a buffer spring 23, a second connecting plate 24, an air avoidance hole 111, a guide groove 112, a sleeve 113, a reinforcing plate 113, a pressure sensor 114, an alarm 115, a PLC control panel 116, and a backup power supply 117;

[0027] In one embodiment, the support maintenance component 1 and the buffer protection component 2 cooperate with each other, not only to support the elevator pit and improve the compressive strength of the elevator pit, but also to buffer and reduce the shock of the elevator car falling from above, thereby improving the protection of the people inside the car and the maintenance personnel in the elevator pit below;

[0028] In one embodiment, the support frame 11 mainly plays a supporting and impact-resistant role, supports the elevator pit, improves the compressive strength of the elevator pit, and can improve the protection of the maintenance personnel in the elevator pit below when the elevator car above falls. At the same time, with the help of the air-avoiding holes of the rectangular through holes on the left and right sides, the front and rear ends and the top, it does not affect the maintenance personnel's inspection and maintenance of the two sides and the top of the elevator pit;

[0029] In one embodiment, the guide grooves 112 at the four corners of the support frame 11 can facilitate the placement of the buffer shock absorber 21 in the buffer protection assembly 2 and guide it to slide up and down, so as to facilitate the shock absorption and buffering of the buffer shock absorber 21 when the upper elevator car falls;

[0030] In one embodiment, the electric slide rail 12 can drive the first stepper motor 13 to slide left and right, the first stepper motor 13 can drive the first support arm 14 to rotate, the second stepper motor 15 can drive the second support arm 16 to rotate, and the electric push rod 17 can drive the cutter 18 to move up and down, that is, through the above, the cutter 18 is conducive to cutting the bottom of the elevator car above, so as to facilitate the rescue of people inside the elevator car in an emergency;

[0031] In one embodiment, the circuit detector 19 can facilitate maintenance personnel to perform circuit detection on the elevator operation electrical equipment on both sides of the elevator pit;

[0032] In one embodiment, there are four buffer shock absorbers 21, which are distributed at the four corners of the bracket maintenance assembly 1, and can provide shock absorption and buffering for the impact from above. A number of buffer springs 23 are provided between the first connecting plate 22 and the second connecting plate 24, which can further achieve the purpose of shock absorption and buffering, and effectively reduce the degree of damage to the elevator car above.

[0033] In one embodiment, the sleeve 113 can facilitate the transportation and lifting of existing forklifts and other equipment, making it convenient to transport and install the device in the elevator pit, and the reinforcing plate 113 can enhance the firmness between the sleeve 113 and the support frame 11;

[0034] In one embodiment, the pressure sensor 114 can sense the pressure contact of the first connecting plate 22 in real time, and can trigger the alarm 115 when the pressure exceeds the original set value, that is, it is conducive to the alarm of the alarm 115, which is used to timely remind the maintenance personnel;

[0035] In one embodiment, the PLC control panel 116 can facilitate maintenance personnel to operate different types of electrical appliances inside the device, and the backup power supply 117 can realize power supply for backup power supply in emergency situations;

[0036] Specifically, the maintenance and protection device is located on the inner side of the elevator pit. With the help of the support maintenance component 1, it can support the cement wall around the elevator pit, effectively achieve impact resistance, and improve the strength and life of the elevator pit. When the maintenance personnel inspect and maintain the elevator pit, because the support frame is surrounded by the avoidance holes 111, they can avoid it greatly, without affecting the exposure of the equipment around the elevator pit, which is convenient for maintenance and processing. When the elevator car falls, the shock-absorbing and buffering effect of the buffer protection component 2 can effectively reduce the damage to the upper elevator car, and at the same time, it also improves the protection of the maintenance personnel in the elevator pit below. When it is necessary to rescue the trapped people in the upper elevator car, the maintenance personnel only need to operate the electric slide rail 12, the first stepper motor 13, the second stepper motor 15, the electric push rod 17 and the cutter 18, which is conducive to the cutter 18 to cut the bottom of the upper elevator car, which is convenient for rescuing the people inside the elevator car in an emergency.

[0037] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work are all within the protection scope of the present invention.

Claims

1. An elevator pit maintenance and protection device, characterized in that It includes a bracket maintenance component and a buffer protection component. The bracket maintenance component consists of a support frame, an electric slide rail, a first stepper motor, a first support arm, a second stepper motor, a second support arm, an electric push rod, a cutter and a circuit detector. The buffer protection component consists of a buffer shock absorber, a first connecting plate, a buffer spring and a second connecting plate. The buffer protection component is slidably arranged on the top of the bracket maintenance component. The buffer protection component and the bracket maintenance component are connected by up and down sliding. The electric slide rail is fixedly arranged on the rear side of the upper end of the support frame. The electric slide rail and the support frame are connected by welding. The first stepper motor is fixedly arranged at the bottom of the electric slide rail. The first stepper motor and the electric slide rail are connected by bolts. The first support arm is fixedly arranged at the bottom front end of the first stepper motor. The first support arm and the first stepper motor are connected by bolts. The second stepper motor is fixedly arranged at the front end of the first support arm. The second stepper motor is fixedly arranged at the first support arm. The second support arm is fixedly arranged at On the right side of the top of the second stepper motor, the second support arm and the second stepper motor are connected by bolts, the electric push rod is fixed on the right side of the second support arm, the electric push rod is connected to the second support arm by bolts, the cutter is fixed on the top of the electric push rod, the cutter is connected to the electric push rod by bolts, the circuit detector is fixed on the left and right sides of the upper end of the support frame, the circuit detector is connected to the support frame by bolts, the number of the buffer shock absorbers is four, the buffer shock absorbers are distributed at the four corners of the upper end of the support frame, the buffer shock absorber and the support frame are connected by up and down sliding, the first connecting plate is fixed on the top of the buffer shock absorber, the first connecting plate and the buffer shock absorber are connected by welding, the number of the buffer springs is several, the buffer springs are evenly fixed around the top of the first connecting plate, the buffer spring and the first connecting plate are connected by welding, the second connecting plate is fixed on the top of the buffer spring, and the second connecting plate and the buffer spring are connected by welding; The support maintenance component and the buffer protection component cooperate with each other, not only to support the elevator pit and improve the compressive strength of the elevator pit, but also to buffer and reduce the shock of the elevator car falling from above, thereby improving the protection of the people inside the car and the maintenance personnel in the elevator pit below; The electric slide rail can drive the first stepper motor to slide left and right, the first stepper motor can drive the first support arm to rotate, the second stepper motor can drive the second support arm to rotate, and the electric push rod can drive the cutter to move up and down. Through the above, the cutter is conducive to cutting the bottom of the elevator car above, which is convenient for rescuing people inside the elevator car in an emergency; There are four buffer shock absorbers distributed at the four corners of the bracket maintenance assembly, which can absorb and buffer the impact from above. A number of buffer springs are arranged between the first connecting plate and the second connecting plate, which can further achieve the purpose of shock absorption and buffering, and effectively reduce the degree of damage to the elevator car above.

2. An elevator pit maintenance and protection device as claimed in claim 1, characterized in that The left and right sides, the front and rear ends and the top of the support frame are also provided with air avoidance holes, and the air avoidance holes are rectangular through holes.

3. An elevator pit maintenance and protection device as claimed in claim 1, characterized in that The four corners of the support frame are also provided with guide grooves, the guide grooves are rectangular grooves, and the guide grooves are connected to the buffer shock absorber by sliding up and down.

4. An elevator pit maintenance and protection device as claimed in claim 1, characterized in that A sleeve is fixedly provided on the left and right sides of the lower end of the inner wall of the support frame, and the sleeve is connected to the support frame by welding. A reinforcing plate is fixedly provided on the top of the sleeve, and the reinforcing plate is connected to the sleeve by welding, and the reinforcing plate is connected to the support frame by welding.

5. The elevator pit maintenance and protection device according to claim 1, characterized in that Pressure sensors are also fixedly arranged on the left and right sides of the top of the support frame, and the pressure sensors are connected to the support frame by bolts.

6. An elevator pit maintenance and protection device as claimed in claim 5, characterized in that An alarm is also fixedly arranged on the right side of the front end of the support frame. The alarm is connected to the support frame by bolts, and the alarm is connected to the pressure sensor by an electrical signal line.

7. An elevator pit maintenance and protection device as claimed in claim 6, characterized in that A PLC control panel is also fixedly provided on the left side of the front end of the support frame. The PLC control panel is connected to the support frame by bolts, and the PLC control panel is respectively connected to the electric slide rail, the first stepper motor, the second stepper motor, the electric push rod, the cutter, the pressure sensor, the alarm and the circuit detector by electrical signal lines.

8. An elevator pit maintenance and protection device as claimed in claim 7, characterized in that A backup power supply is also fixedly provided on the left side of the front end of the support frame. The backup power supply is connected to the support frame by bolts, and the backup power supply is respectively connected to the electric slide rail, the first stepper motor, the second stepper motor, the electric push rod, the cutter, the pressure sensor, the alarm, the circuit detector and the PLC control panel by power cords.

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