Self-lifting adjustable bus duct fire resistance experiment sample installation device

Abstract

The invention discloses a self-lifting type adjustable bus duct fire resistance experiment sample mounting device which comprises an upper supporting frame, a lower supporting frame, a plug pin, an adjusting hole, a pulley, a rotatable supporting rod, a traction steel strand, a supporting plate, a traction motor, a rotating shaft and a rigid connector. According to the invention, the lever principle is utilized, the adjustable height of the upper and lower support frames is combined, and the installation device for the bus duct fire resistance experiment is convenient and safe to operate and can place the bus duct without personnel entering a test furnace. According to the structure, by means of the adjustable supporting frame and the automatic bus duct placing device, the bus duct can be placed in the fire-resistant experiment furnace without entering the experiment furnace. In order to solve the problem that in-furnace supports need to be placed again every time during traditional bus duct fire resistance experiment installation, the rotatable supporting rods are adopted, so that after a bus duct is placed in a test furnace, the installation device can exit the test furnace without obstacles, and the in-furnace supports do not need to be placed again every time. Aiming at the problem that the traditional bus duct fire-resistant experiment installation needs driving assistance, the height of the bus duct entering a fire-resistant experiment furnace can be adjusted through the adjustable upper and lower support frames. In order to solve the problem that workers need to enter a furnace for work during traditional bus duct fire resistance experiment installation and are not safe, the traction motor is adopted to pull the supporting rod to achieve automatic bus duct placement, the workers do not need to enter the furnace, and the safety of the workers is guaranteed.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of fire resistance test installation of bus ducts, and particularly relates to a self-lifting and adjustable bus duct fire resistance test sample installation device. Background Art

[0002] Fire resistance test methods are widely used in fields such as buildings, transportation vehicles, and electronic devices. In the field of buildings, fire resistance test methods can be used to evaluate the fire resistance performance of various building materials to ensure the safety performance of buildings in the event of a fire. "Test Methods for Flame Retardancy, Fire Prevention, and Fire Resistance of Busbar Trunking Systems (Bus Ducts) XF / T 537-2005" requires that both ends of the bus duct fire resistance test specimen be supported on the furnace wall of the fire resistance test furnace, and the lengths extending out of the test furnace at both ends are not less than 500 mm, and both ends are sealed with non-combustible heat insulation materials. The specimen joint should be in the middle of the furnace, and a support should be set on each side of the joint, and the distance between them should not be less than 1000 mm. This support is uniformly provided by the test unit, and the distance between the furnace top and the specimen should not be less than 150 mm. After the power is turned on, the transformer is adjusted to gradually rise to the rated voltage of the specimen, and the current in the circuit is made 0.25 A through the configuration of the load. Then, ignition is carried out. When the temperature of the thermocouple near the center of the specimen in the fire resistance test furnace reaches 50 °C, all measuring instruments start to work, and the test begins. The fire supply time should not be less than 30 min, and power is continued for 15 min after the fire supply stops. That is, the total test time is the fire supply time plus 15 min of cooling time.

[0003] The installation process of the traditional bus duct fire resistance test specimen is relatively cumbersome, requiring three to four staff members to complete it together, and auxiliary equipment such as a crane and a trolley is needed. Moreover, it is necessary for the staff to constantly and repeatedly replace the supports inside the furnace, and the staff need to enter the test furnace to work, and even manual handling may be required. Also, the disassembly after the experiment requires the same steps, which is relatively cumbersome and poses a safety hazard to the staff. Summary of the Invention

[0004] In view of the above problems, the present invention provides a self-lifting adjustable busbar fire resistance test sample installation device, and the specific content of the invention is as follows: Technical problem: The present invention discloses a self-lifting adjustable busbar fire resistance test sample installation device, which includes an upper support frame, a lower support frame, a pin, an adjustment hole, a pulley, a rotatable support rod, a traction steel wire rope, a support plate, a traction motor, a rotating shaft, and a rigid connection. By using the lever principle and combining the adjustable heights of the upper and lower support frames, the present invention invents a busbar fire resistance test installation device that is convenient, safe to operate, and does not require personnel to enter the test furnace to place the busbar. This structure can place the busbar in the fire resistance test furnace without personnel entering the test furnace by using the adjustable support frame and the automatic busbar placement device. In view of the problem that in the traditional busbar fire resistance test installation, the in-furnace support needs to be rearranged each time, the present invention uses a rotatable support rod, so that after the busbar is placed in the test furnace, the installation device can exit the test furnace without obstacles. In view of the problem that traditional busbar fire resistance test installations all require the assistance of a crane, the present invention realizes the adjustable height of the busbar when entering the fire resistance test furnace through the adjustable upper and lower support frames. In view of the problem that traditional busbar fire resistance test installations all require staff to enter the furnace to work and are unsafe, the present invention uses a traction motor to pull the support rod to automatically place the busbar.

[0005] Technical solution: The present invention discloses a self-lifting adjustable busbar fire resistance test sample installation device, which includes an upper support frame, a lower support frame, a pin, an adjustment hole, a pulley, a rotatable support rod, a traction steel wire rope, a support plate, a traction motor, a rotating shaft, and a rigid connection; by using the adjustable support frame and the traction motor to pull the support rod, the busbar can be placed in the test furnace without obstacles and the installation device can exit the test furnace without obstacles. The upper and lower support frames are composed of an upper support frame and a lower support frame, and the height is adjusted by using a pin and an adjustment hole; the pin and the adjustment hole are on the upper and lower support frames to adjust the height and fix the upper and lower support frames; the rotatable support rod is installed on the upper support frame through a rotating shaft and rotates through the rotating shaft; the support plate is rigidly connected to the support rod to support the busbar; one end of the traction steel wire rope is connected to the traction motor and the other end is connected to the rotatable support rod; the traction motor can rotate bidirectionally to wind and release the traction steel wire rope.

[0006] In view of the problem that in the traditional busbar fire resistance test installation, the in-furnace support needs to be rearranged each time, the present invention uses a rotatable support rod, so that after the busbar is placed in the test furnace, the installation device can exit the test furnace without obstacles and does not require the in-furnace support to be rearranged each time.

[0007] In view of the problem that traditional busbar fire resistance test installations all require the assistance of a crane, the present invention realizes the adjustable height of the busbar when entering the fire resistance test furnace through the adjustable upper and lower support frames.

[0008] Aiming at the problem that traditional refractory experiments of bus ducts require workers to enter the furnace for work, which is unsafe, the present invention uses a traction motor to traction a support rod to automatically place the bus duct, eliminating the need for workers to enter the furnace and ensuring the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall installation device of the present invention; Figure 2 It is a schematic diagram of the structure of the support device of the present invention; Figure 3 It is a schematic diagram of the structure of the rotating device of the present invention; Figure 4 It is a schematic diagram of the structure of the support frame of the present invention; Figure 5 It is a schematic diagram of the structure of the adjusting device of the present invention; In the figure: 1 - upper support frame, 2 - lower support frame, 3 - bolt, 4 - adjustment hole, 5 - pulley, 6 - rotatable support rod, 7 - traction steel strand, 8 - support plate, 9 - traction motor, 10 - rotating shaft, 11 - rigid connection.

[0011] EMBODIMENTS

[0012] The present invention will be further described in detail below with reference to the accompanying drawings.

[0013] The present invention discloses a self-lifting and adjustable installation device for bus duct refractory experiment samples, which includes an upper support frame (1), a lower support frame (2), a bolt (3), an adjustment hole (4), a pulley (5), a rotatable support rod (6), a traction steel strand (7), a support plate (8), a traction motor (9), a rotating shaft (10), and a rigid connection (11); by using the adjustable support frames (1) and (2) and the traction motor (9) to traction the support rod (6), the bus duct can be placed in the test furnace without obstacles and the installation device can withdraw from the test furnace without obstacles. The upper and lower support frames (1) and (2) are composed of an upper support frame (1) and a lower support frame (2), and the height is adjusted by using the bolt (3) and the adjustment hole (4); the bolt (3) and the adjustment hole (4) are on the upper and lower support frames (1) and (2) to adjust the height and fix the upper and lower support frames (1) and (2); the rotatable support rod (6) is installed on the upper support frame (1) and (2) through the rotating shaft (10) and rotates through the rotating shaft (10); the support plate (8) is rigidly connected (11) to the support rod (6) to support the bus duct; one end of the traction steel strand (7) is connected to the traction motor (9), and the other end is connected to the rotatable support rod (6); the traction motor (9) can rotate bidirectionally to wind and release the traction steel strand (7).

[0014] Working principle: The present invention discloses a self-lifting and adjustable busbar trough fire resistance test sample installation device, which includes an upper support frame (1), a lower support frame (2), a bolt (3), an adjustment hole (4), a pulley (5), a rotatable support rod (6), a traction steel strand (7), a support plate (8), a traction motor (9), a rotating shaft (10), and a rigid connection (11). The present invention utilizes the lever principle and combines the adjustable height of the upper and lower support frames to invent a busbar trough fire resistance test installation device that is convenient, safe to operate, and does not require personnel to enter the test furnace to place the busbar trough. This structure will utilize the adjustable support frames (1) and (2) and the automatic busbar trough placement device to enable personnel to place the busbar trough in the fire resistance test furnace without entering the test furnace. Aiming at the problem of the traditional busbar trough fire resistance test installation that requires repositioning the in-furnace support every time, the present invention adopts a rotatable support rod (6), so that after the busbar trough is placed in the test furnace, the installation device can exit the test furnace without obstacles and does not require repositioning the in-furnace support every time. Aiming at the problem that traditional busbar trough fire resistance test installations all require the assistance of a traveling crane, the present invention realizes adjustable height of the busbar trough when entering the fire resistance test furnace through the adjustable upper and lower support frames (1) and (2). Aiming at the problem that traditional busbar trough fire resistance test installations all require staff to enter the furnace to work and are unsafe, the present invention uses a traction motor (9) to traction the support rod to automatically place the busbar trough, without requiring staff to enter the furnace, ensuring the safety of the staff.

Claims

1. The present invention discloses a self-lifting adjustable bus duct fire resistance test sample installation device, which includes an upper support frame, a lower support frame, a latch, an adjustment hole, a pulley, a rotatable support rod, a traction steel strand, a support plate, a traction motor, a rotating shaft, and a rigid connection; the characteristics are: The bus duct can be placed in the test furnace without obstacles by using an adjustable support frame and a traction motor traction support rod, and the installation device can be withdrawn from the test furnace without obstacles. The upper and lower support frames are composed of an upper support frame and a lower support frame, and the height is adjusted by using pins and adjustment holes; the pins and adjustment holes are on the upper and lower support frames to adjust the height and fix the upper and lower support frames; the rotatable support rod is installed on the upper support frame through a rotating shaft and rotates through the rotating shaft; the support plate is rigidly connected to the support rod to support the bus duct; one end of the traction steel strand is connected to the traction motor, and the other end is connected to the rotatable support rod; the traction motor can rotate in both directions to realize winding and releasing the traction steel strand.

2. A self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1, characterized in that: The upper and lower support frames are composed of an upper support frame and a lower support frame. The upper support frame is sleeved on the lower support frame, and the height is adjusted by using latches and adjustment holes.

3. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1 is characterized in that: The latch and adjustment hole are located in the overlapping part of the upper and lower support frames, and the adjustment holes are evenly distributed on the upper and lower support frames. The latch is used to adjust the height and fix the upper and lower support frames.

4. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1 is characterized in that: The rotatable support rods are mounted on the upper support frame via a rotating shaft, and there are four of them in total, two on each side of the upper support frame, which are spaced a certain distance apart and rotate via the rotating shaft.

5. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1 is characterized in that: The support plates are rigidly connected to the support rods, and there are also four of them. Their shape is L-shaped and they are used to fix and support the bus duct.

6. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1 is characterized in that: One end of the traction steel strand is connected to the traction motor, and the other end is connected to the rotatable support rod.

7. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1 is characterized in that: The traction motor can rotate in both directions to realize winding and releasing the traction steel strands. When the bus duct is loaded, the steel strands are retracted so that the support rods support the bus duct. When the bus duct is placed, the steel strands are released so that the bus duct descends.

8. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1 is characterized in that: A rigid connection is a connection between the rotatable support rod and the support plate, where there is no displacement between the two.

9. The self-lifting adjustable bus duct fire resistance test sample installation device according to claim 1, characterized in that: Pulleys are located at the four corners of the lower support frame and are used to move the installation device.

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