Soft connection device for lignite powder weighing bin bottom

Abstract

The utility model discloses a lignite powder weighing bin bottom flexible connecting device, which is applied to the field of connecting devices and comprises an upper end fixing pipe, a lower end fixing pipe is arranged at the bottom of the upper end fixing pipe, and a first mounting plate and a second mounting plate are respectively welded on the back-to-back sides of the upper end fixing pipe and the lower end fixing pipe. A connecting hose is arranged at the top of the lower end fixing pipe, two connecting pipes are mounted on the surface of the connecting hose, a locking sleeve is in threaded connection with the surface of the upper end fixing pipe, connecting plates are symmetrically welded to the bottom of the first mounting plate, and threaded rods are welded to the two sides of the second mounting plate. According to the device, the hose can be conveniently and rapidly disassembled and assembled, operation is easy and convenient, the sealing performance and stability of the hose after installation are improved, safety is high, meanwhile, the lower end can be limited, shaking caused by internal impact is avoided, the manual holding burden of personnel is relieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of connecting devices, in particular to a soft connecting device for the bottom of a lignite pulverized coal weighing bin. Background Art

[0002] Currently, a Chinese utility model with the announcement number CN209743847U discloses a quick-install flexible connection device. Although this connection device can be fixed to the mounting joint via clamps at both ends of the hose, other problems still exist during use. For example, it is not convenient to quickly disassemble and assemble the hose. The clamp used to lock the hose not only requires the assistance of tools when fixing, but also may cause looseness and poor sealing after tightening. It has poor stability and cannot limit the lower end. When the coal dust in the bin falls too quickly, the lower end of the device will shake when it is impacted. If the shaking amplitude is too large, it will make it difficult for the coal dust to fall into the collection container below, increasing the manual gripping burden of the operator. To address the above-mentioned problems, we propose a soft connection device for the bottom of the lignite coal dust weighing bin. Utility Model Content

[0003] The utility model aims to provide a soft connection device for the bottom of a lignite pulverized coal weighing bin, which solves the problem that the existing soft connection device is inconvenient for quick disassembly and assembly of the hose and cannot limit the lower end.

[0004] The above technical objectives of the present utility model are achieved through the following technical solutions: a lignite pulverized coal weighing bin bottom soft connection device, comprising an upper fixed tube, a lower fixed tube is provided at the bottom of the upper fixed tube, a first mounting plate and a second mounting plate are welded to the back-to-back sides of the upper fixed tube and the lower fixed tube respectively, a connecting hose is provided at the top of the lower fixed tube, two connecting tubes are installed on the surface of the connecting hose, a locking sleeve is threadedly connected to the surface of the upper fixed tube, a connecting plate is symmetrically welded to the bottom of the first mounting plate, threaded rods are welded on both sides of the second mounting plate, a sliding groove is provided inside the connecting plate, and the other end of the threaded rod extends to the outside of the sliding groove and is threadedly connected to a nut.

[0005] The above technical solution can facilitate quick disassembly and assembly of the hose, is simple and convenient to operate, improves the sealing and stability of the hose after installation, and is highly safe. At the same time, it can limit the lower end to avoid shaking due to internal impact, reduce the burden of manual holding by personnel, and is highly practical.

[0006] The utility model is further configured as follows: baffles are welded on opposite sides of the two connecting pipes.

[0007] By adopting the above technical solution, the locking sleeve can be limited by setting the baffle to prevent the locking sleeve from rotating too much and separating from the upper fixed tube or the lower fixed tube.

[0008] The present invention is further configured such that surfaces of the first mounting plate and the second mounting plate are both coated with anti-corrosion paint.

[0009] By adopting the above technical solution and providing the anti-corrosion coating, the anti-corrosion and moisture-proof effects of the surfaces of the first mounting plate and the second mounting plate can be improved.

[0010] The present invention is further configured as follows: four mounting holes are provided on the top of the first mounting plate.

[0011] By adopting the above technical solution and providing the mounting holes, it is convenient for personnel to fix the first mounting plate to the opening at the bottom of the weighing bin with screws.

[0012] The utility model is further configured as follows: a spring washer is slidably sleeved on the surface of the threaded rod.

[0013] By adopting the above technical solution and providing the spring washer, the fixing effect of the nut after tightening can be improved, thereby playing a role in preventing vibration and loosening.

[0014] The utility model is further configured as follows: the threaded rod and the nut are both made of stainless steel.

[0015] By adopting the above technical solution, the threaded rod and the nut have the characteristics of high strength, low density and excellent corrosion resistance.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1. The utility model first fixes the first mounting plate in the specified position with screws. After the first mounting plate is fixed, the connecting hose is picked up, and then the connecting pipe at the upper end of the connecting hose is fitted with the bottom of the upper fixed pipe. After the connecting pipe and the upper fixed pipe are fitted, the locking sleeve is grasped with the other hand and rotated downward. When the locking sleeve is rotated downward to the bottom, the upper connecting pipe is fixed. Then, the lower connecting pipe can be installed in the same way. This makes it easy to quickly disassemble and assemble the hose, is simple and convenient to operate, improves the sealing and stability of the hose after installation, and is highly safe.

[0018] 2. The utility model works by first grasping the second mounting plate and pulling it downward to deform and stretch the connecting hose when the lower end fixed pipe shakes due to the impact of falling coal powder, and then placing the threaded rods on both sides of the second mounting plate in the two sliding grooves respectively, and then lifting the second mounting plate to move the threaded rods upward. When the second mounting plate moves up to a suitable distance, the nut is tightened with a tool, which can limit the lower end and avoid shaking caused by internal impact, thereby reducing the burden of manual holding by personnel and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0020] Figure 2 This is a front sectional view of the structure of the utility model;

[0021] Figure 3 This utility model Figure 2 A magnified view of the structure at center A.

[0022] Figure numerals: 1. upper end fixing tube; 2. lower end fixing tube; 3. first mounting plate; 4. second mounting plate; 5. connecting hose; 6. connecting tube; 7. locking sleeve; 8. connecting plate; 9. threaded rod; 10. sliding groove; 11. nut; 12. baffle; 13. mounting hole; 14. spring washer. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1:

[0025] refer to Figure 1 and Figure 2 When the cap 1 is in the air, the cap 2 is tightened, and the screw thread 7 is tightened, so that the cap 1 is tightened, and the screw thread 7 is tightened.

[0026] refer to Figure 1 and Figure 2 A baffle 12 is welded on the opposite side of the two connecting pipes 6. Through the setting of the baffle 12, the locking sleeve 7 can be limited to prevent the locking sleeve 7 from rotating too much and separating from the upper fixed pipe 1 or the lower fixed pipe 2.

[0027] refer to Figure 1 and Figure 2 The surfaces of the first mounting plate 3 and the second mounting plate 4 are coated with anti-corrosion paint. By setting the anti-corrosion paint, the anti-corrosion and moisture-proof effects of the surfaces of the first mounting plate 3 and the second mounting plate 4 can be improved.

[0028] refer to Figure 1 and Figure 2 Four mounting holes 13 are provided on the top of the first mounting plate 3. The arrangement of the mounting holes 13 makes it easy for personnel to fix the first mounting plate 3 to the opening at the bottom of the weighing bin with screws.

[0029] Brief description of the usage process: First, fix the first mounting plate 3 in the specified position with screws. When the first mounting plate 3 is fixed, pick up the connecting hose 5, and then fit the connecting pipe 6 at the upper end of the connecting hose 5 to the bottom of the upper fixed pipe 1. When the connecting pipe 6 and the upper fixed pipe 1 are matched, use your other hand to grab the locking sleeve 7 and turn it downward. When the locking sleeve 7 is turned downward to the bottom, it will fix the upper connecting pipe 6. Then, the lower connecting pipe 6 can be installed in the same way.

[0030] Example 2:

[0031] refer to Figure 1 、 Figure 2 and Figure 3 , a lignite pulverized coal weighing bin bottom soft connection device, the bottom of the first mounting plate 3 is symmetrically welded with a connecting plate 8, and threaded rods 9 are welded on both sides of the second mounting plate 4, and a sliding groove 10 is opened inside the connecting plate 8. The other end of the threaded rod 9 extends to the outside of the sliding groove 10 and is threadedly connected with a nut 11. When the connecting hose 5 is shaken by the impact of falling coal powder and the lower end fixed pipe 2 shakes, first grab the second mounting plate 4 and pull it downward to deform and elongate the connecting hose 5, and then place the threaded rods 9 on both sides of the second mounting plate 4 in the two sliding grooves 10 respectively, and then lift the second mounting plate 4 to make the threaded rod 9 move upward, and when the second mounting plate 4 moves to a suitable distance, tighten the nut 11 with a tool, which can limit the lower end and avoid shaking caused by internal impact, reducing the burden of manual holding of personnel, and has high practicality.

[0032] refer to Figure 3 The surface of the threaded rod 9 is slidably sleeved with a spring washer 14. The setting of the spring washer 14 can improve the fixing effect of the nut 11 after tightening, and play a role in anti-vibration and anti-loosening.

[0033] refer to Figure 1 and Figure 3 The threaded rod 9 and the nut 11 are both made of stainless steel, and the threaded rod 9 and the nut 11 have the characteristics of high strength, low density and excellent corrosion resistance.

[0034] Brief description of the usage process: When the connecting hose 5 shakes due to the impact of falling coal powder, first grab the second mounting plate 4 and pull it downward to deform and elongate the connecting hose 5, then place the threaded rods 9 on both sides of the second mounting plate 4 into the two sliding grooves 10 respectively, then lift the second mounting plate 4 to move the threaded rods 9 upward, and when the second mounting plate 4 moves up to the appropriate distance, tighten the nuts 11 with a tool.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A soft connection device for the bottom of a lignite pulverized coal weighing bin, comprising an upper fixed pipe (1), characterized in that: A lower end fixing tube (2) is provided at the bottom of the upper end fixing tube (1), a first mounting plate (3) and a second mounting plate (4) are welded to the opposite sides of the upper end fixing tube (1) and the lower end fixing tube (2), respectively, a connecting hose (5) is provided at the top of the lower end fixing tube (2), two connecting tubes (6) are installed on the surface of the connecting hose (5), a locking sleeve (7) is threadedly connected to the surface of the upper end fixing tube (1), a connecting plate (8) is symmetrically welded to the bottom of the first mounting plate (3), and threaded rods (9) are welded to both sides of the second mounting plate (4), a sliding groove (10) is provided inside the connecting plate (8), and the other end of the threaded rod (9) extends to the outside of the sliding groove (10) and is threadedly connected to a nut (11).

2. A lignite pulverized coal weighing bin bottom flexible connection device according to claim 1, characterized in that: Baffles (12) are welded on opposite sides of the two connecting pipes (6).

3. The soft connection device for the bottom of a lignite pulverized coal weighing bin according to claim 1, characterized in that: The surfaces of the first mounting plate (3) and the second mounting plate (4) are both coated with anti-corrosion paint.

4. The soft connection device for the bottom of a lignite pulverized coal weighing bin according to claim 1, characterized in that: Four mounting holes (13) are provided on the top of the first mounting plate (3).

5. The soft connection device for the bottom of a lignite pulverized coal weighing bin according to claim 1, characterized in that: A spring washer (14) is slidably sleeved on the surface of the threaded rod (9).

6. The soft connection device for the bottom of a lignite pulverized coal weighing bin according to claim 1, characterized in that: The threaded rod (9) and the nut (11) are both made of stainless steel.

Images