Extremely cold-resistant polyurethane funnel

Abstract

The utility model relates to the technical field of material conveying, and provides an extremely-cold-resistant polyurethane funnel which comprises a funnel body and a hopper assembly, the hopper assembly comprises an elastic belt, a plurality of hoppers and a plurality of torsional springs, and one end of each hopper is hinged to the funnel body; the torsional springs are hinged between the hoppers and the funnel body, and the elastic force of all the torsional springs is used for driving all the hoppers to be in a closed state and cover the discharge port of the funnel body; the outer walls of all the hoppers are sleeved with all the elastic belts, the elastic belts are installed on the sides, away from the torsional springs, of the hoppers, and elasticity of the elastic belts is used for driving all the hoppers to be in a closed state. According to the extremely-cold-resistant polyurethane funnel, the sealing effect of the hopper on the discharging opening of the funnel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of material conveying, and in particular to an extreme cold-resistant polyurethane funnel. Background Art

[0002] With the continuous development of modern technology, steel-lined hoppers, as a key fluid control component, are widely used in various industries, scientific research and aerospace fields. Traditional steel-lined hopper designs usually include multiple hoppers, which are mounted on the discharge port of the hopper by rotating.

[0003] To keep the hopper closed under normal conditions, a torsion spring is installed between the hopper and the hopper outlet. The spring's elastic force allows the hopper to close automatically when no external force is applied, effectively preventing material leakage. When material is poured into the hopper, the pressure from the material causes the hopper to automatically open, creating an opening that allows the material to pass through.

[0004] However, when the elastic force of the torsion spring drives all the hoppers to be in a closed state, the side of the hopper away from the torsion spring often has a problem of poor sealing, which needs to be improved. Utility Model Content

[0005] In order to increase the sealing effect of the hopper on the funnel discharge port, the present application provides an extreme cold-resistant polyurethane funnel.

[0006] The present application provides an extremely cold-resistant polyurethane funnel adopting the following technical solutions:

[0007] An extreme cold-resistant polyurethane funnel comprises a funnel body and a hopper assembly. The hopper assembly comprises an elastic band, multiple hoppers, and multiple torsion springs. One end of all the hoppers is hinged to the discharge port of the funnel body. The torsion springs are hinged between the hoppers and the funnel body. The elastic force of all the torsion springs is used to drive all the hoppers into a closed state and cover the discharge port of the funnel body. All the elastic bands are sleeved on the outer walls of all the hoppers, and the elastic bands are installed on the side of the hopper away from the torsion springs. The elastic force of the elastic bands is used to drive all the hoppers into a closed state.

[0008] By adopting the above-mentioned technical solution, when the material enters the funnel, the hopper will automatically open to form an opening due to the pressure of the material, allowing the material to pass through smoothly; after the material passes through, the elastic force of the torsion spring and the elastic band work together to make the hopper quickly return to the closed state; and the elastic band is arranged on the side of the hopper away from the torsion spring, and the elastic force of the elastic band can increase the closing effect of all hoppers on the side away from the torsion spring, thereby improving the sealing of the hopper.

[0009] Optionally, a plug-in slot is provided on the outer wall of the hopper, a detachable plug-in block is installed in the plug-in slot, and the elastic band is connected to the plug-in block.

[0010] By adopting the above-mentioned technical solution, by setting the elastic band on the plug-in block and detachably installing the plug-in block in the plug-in slot, the elastic band can be replaced after the elastic force fails after long-term use, so as to maintain the sealing effect of all hoppers being closed to each other.

[0011] Optionally, the plug-in block is connected to the inner wall of the plug-in slot via bolts.

[0012] By adopting the above technical solution and arranging bolts, a detachable connection between the plug-in block and the hopper can be achieved, and the structure is simple, so that the workers can easily carry out the construction.

[0013] Optionally, movable grooves are provided on opposite sides of the plug-in block, and a clamping block is movably installed in the movable groove; a spring is provided between the clamping block and the inner wall of the movable groove, and the spring is kept in a compressed state; and the plug-in groove is provided with a clamping groove for the clamping block to be plugged in.

[0014] By adopting the above-mentioned technical solution, the plug-in block and the plug-in slot are plugged together, so that the plug-in block can be installed in the plug-in slot. The structure is simple, which improves the convenience of plugging the plug-in block into the plug-in slot and improves the installation efficiency between the elastic band and the hopper; and the elastic force of the spring can keep the plug-in block plugged into the plug-in slot, thereby increasing the stability of the plug-in block plugged into the plug-in slot.

[0015] Optionally, the clamping block is provided with a guide surface for guiding the clamping block into the movable groove.

[0016] By adopting the above technical solution, when the plug-in block is inserted into the plug-in slot, the guide block enters the movable slot under the guidance of the guide surface, so that the plug-in block can be smoothly inserted into the plug-in slot; and when the movable slot and the clamping slot are arranged opposite each other, the clamping block is inserted into the clamping slot under the elastic force of the spring, thereby completing the installation of the plug-in block and the hopper.

[0017] Optionally, an unlocking groove connected to the movable groove is provided on the surface of the plug-in block, an unlocking rod is movably installed in the unlocking groove, and one end of the unlocking rod is fixed to the clamping block.

[0018] By adopting the above technical solution, the position of the clamping block in the movable groove can be changed by moving the unlocking rod in the unlocking groove, so as to cancel the disengagement of the clamping block from the movable groove and disassemble the elastic band.

[0019] Optionally, the discharge port of the funnel body is provided with a sealing ring, and when all the hoppers are in a closed state, the sealing ring abuts against the inner walls of all the hoppers.

[0020] By adopting the above technical solution, the sealing ring can increase the sealing performance of the hopper in the closed state.

[0021] Optionally, a rubber layer is provided between two adjacent hoppers.

[0022] By adopting the above technical solution and providing a rubber layer, two adjacent hoppers can be flexibly connected, thereby improving the sealing performance of all hoppers in a closed state.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up an elastic belt, after the material passes through the funnel body, the elastic force of the torsion spring and the elastic belt work together to quickly return the hopper to the closed state; and the elastic belt is set on the side of the hopper away from the torsion spring. The elastic force of the elastic belt can increase the closing effect of all hoppers on the side away from the torsion spring, thereby improving the sealing of the hopper;

[0025] 2. By setting the elastic band on the plug-in block and detachably installing the plug-in block in the plug-in slot, the elastic band can be replaced after the elastic force fails after long-term use, so as to maintain the sealing effect of all hoppers being closed to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of Example 1, with all hoppers in a closed state;

[0027] Figure 2 It is a schematic diagram of the structure of Example 1, with all hoppers in the expanded state;

[0028] Figure 3 yes Figure 2 A local enlarged view of point a;

[0029] Figure 4 yes Figure 2 A local enlarged view of point b;

[0030] Figure 5 is a partial cross-sectional view of the plug-in block of Example 2;

[0031] Figure 6 yes Figure 5 A local enlarged view of point c.

[0032] Explanation of the accompanying drawings: 1. Funnel body; 11. Sealing ring; 2. Hopper assembly; 21. Elastic band; 22. Hopper; 23. Torsion spring; 24. Rubber layer; 25. Plug-in slot; 26. Clamping slot; 3. Bracket; 4. Plug-in block; 41. Threaded hole; 42. Movable slot; 43. Unlocking slot; 5. Bolt; 6. Clamping block; 61. Spring; 62. Unlocking rod; 63. Guide surface. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] Example 1:

[0035] The embodiment of the present application discloses a polyurethane funnel 22 that is resistant to extreme cold.

[0036] Reference Figure 1 A polyurethane funnel 22 resistant to extreme cold includes a funnel body 1, a hopper assembly 2 and a bracket 3, the bracket 3 is used to support the bottom of the funnel body 1; the discharge port of the funnel body 1 is provided with a sealing ring 11, and the hopper 22 body is enclosed by the outer wall of the sealing ring 11 to cover the discharge port of the funnel body 1.

[0037] Reference Figure 2 and Figure 3 The hopper 22 body includes an elastic band 21, multiple hoppers 22 and multiple torsion springs 23. In this embodiment, the hopper 22 is made of polyurethane material. The polyurethane material has good low-temperature resistance and can maintain good flexibility and strength at low temperatures, thereby ensuring the normal operation of the hopper 22 in extremely cold environments.

[0038] Reference Figure 2 All hoppers 22 are rotatably mounted on the funnel body 1 and enclosed by the outer wall of the sealing ring 11; the torsion spring 23 is installed at the hinge between the hopper 22 and the funnel body 1, and the elastic force of the torsion spring 23 is used to drive all hoppers 22 to be in a closed state and cover the discharge port of the funnel body 1.

[0039] A rubber layer 24 is provided between two adjacent hoppers 22. When all the hoppers 22 are in a closed state, the two adjacent hoppers 22 are flexibly connected and pressed against each other, thereby increasing the sealing between the two adjacent hoppers 22 and thereby increasing the sealing effect of the hopper 22 body on the discharge port of the funnel body 1.

[0040] Reference Figure 4 A plug-in slot 25 is provided on the outer wall of the hopper 22 and on one side away from the torsion spring 23, and a detachable plug-in block 4 is installed in the plug-in slot 25; the elastic band 21 is connected to the plug-in blocks of all the hoppers 22, and the elastic force of the elastic band 21 is used to drive all the hoppers 22 to close.

[0041] In this embodiment, the plug-in block 4 is provided with a threaded hole 41, and the inner wall of the plug-in slot 25 is provided with a threaded groove for communicating with the threaded hole 41, and bolts 5 are installed in the threaded hole 41 and the threaded groove; the provision of the bolts 5 can realize the disassembly and assembly between the plug-in block 4 and the hopper 22, and the elastic band 21 can be replaced after the elastic force fails after long-term use, so as to maintain the sealing effect of all the hoppers 22 being closed to each other.

[0042] The implementation principle of Example 1 of the present application is:

[0043] When the material enters the funnel, the hopper 22 will automatically open to form an opening due to the pressure of the material, allowing the material to pass through smoothly; after the material passes through, the elastic force of the torsion spring 23 and the elastic band 21 work together to make the hopper 22 quickly return to the closed state; and the elastic band 21 is arranged on the side of the hopper 22 away from the torsion spring 23. The elastic force of the elastic band 21 can increase the closing effect of all the hoppers 22 on the side away from the torsion spring 23, thereby improving the sealing of the hopper 22.

[0044] Example 2:

[0045] The embodiment of the present application discloses a polyurethane funnel 22 that is resistant to extreme cold.

[0046] Reference Figure 5 and Figure 6 The difference between Example 2 of the present application and Example 1 is that: movable grooves 42 are provided on the opposite side walls of the plug-in block 4, and a clamping block 6 is movably installed in the movable groove 42. A clamping groove 26 for the clamping block 6 to be plugged in is provided on the inner wall of the plug-in groove 25; a guide surface 63 is provided on the side of the clamping block 6 close to the plug-in groove 25, and a positioning surface is provided on the side of the clamping block 6 away from the clamping groove 26. The distance between the guide surface 63 and the positioning surface decreases from the side close to the movable groove 42 to the side away from the movable groove 42. The guide surface 63 is used to guide the clamping block 6 into the movable groove 42.

[0047] Reference Figure 6 A spring 61 is provided between the clamping block 6 and the movable groove 42. The elastic force of the spring 61 is used to drive the clamping block 6 to be inserted into the clamping groove 26 under normal conditions. When the plug-in block 4 is inserted into the insertion groove 25, the guide block enters the movable groove 42 under the guidance of the guide surface 63, so that the plug-in block 4 can be smoothly inserted into the insertion groove 25. When the movable groove 42 and the clamping groove 26 are arranged opposite each other, the clamping block 6 is inserted into the clamping groove 26 under the elastic force of the spring 61, thereby completing the installation of the plug-in block 4 and the hopper 22. The plug-in block 4 is connected to the hopper 22 by the plug-in cooperation between the clamping block 6 and the clamping groove 26, which is more convenient and improves the installation efficiency between the elastic band and the hopper 22.

[0048] An unlocking slot 43 connected to the movable slot 42 is provided on the side of the plug-in block 4 away from the plug-in slot 25, and the extension direction of the unlocking slot 43 is in the same direction as the sliding direction of the clamping block 6; an unlocking rod 62 is movably installed in the unlocking slot 43, and one end of the unlocking rod 62 is fixed to the clamping block 6; by moving the unlocking rod 62 to a position in the unlocking slot 43, the clamping block 6 can be disengaged from the movable slot 42 to disassemble the elastic band 21.

[0049] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An extreme cold-resistant polyurethane funnel, characterized by: The invention comprises a hopper body (1) and a hopper assembly (2), wherein the hopper assembly (2) comprises an elastic band (21), a plurality of hoppers (22) and a plurality of torsion springs (23), one end of each of the hoppers (22) being hinged to the hopper body (1); the torsion springs (23) being hinged between the hoppers (22) and the hopper body (1); the elastic force of each of the torsion springs (23) being used to drive each of the hoppers (22) to a closed state and covering the discharge port of the hopper body (1); and each of the elastic bands (21) being sleeved on the outer wall of each of the hoppers (22), and the elastic bands (21) being installed on a side of the hoppers (22) away from the torsion springs (23); and the elastic force of each of the elastic bands (21) being used to drive each of the hoppers (22) to a closed state.

2. The extreme cold-resistant polyurethane funnel according to claim 1, characterized in that: The outer wall of the hopper (22) is provided with a plug-in slot (25), a detachable plug-in block (4) is installed in the plug-in slot (25), and the elastic band (21) is connected to the plug-in block (4).

3. The extreme cold-resistant polyurethane funnel according to claim 2, characterized in that: The plug-in block (4) is connected to the inner wall of the plug-in slot (25) via bolts (5).

4. The extreme cold-resistant polyurethane funnel according to claim 2, characterized in that: The plug-in block (4) is provided with movable grooves (42) on opposite sides, and a clamping block (6) is movably installed in the movable groove (42); a spring (61) is provided between the clamping block (6) and the inner wall of the movable groove (42), and the spring (61) is kept in a compressed state; and the plug-in groove (25) is provided with a clamping groove (26) for the clamping block (6) to be inserted.

5. The extreme cold-resistant polyurethane funnel according to claim 4, characterized in that: The clamping block (6) is provided with a guide surface (63) for guiding the clamping block (6) into the movable groove (42).

6. The extreme cold-resistant polyurethane funnel according to claim 4, characterized in that: The surface of the plug-in block (4) is provided with an unlocking slot (43) connected to the movable slot (42), and an unlocking rod (62) is movably installed in the unlocking slot (43), and one end of the unlocking rod (62) is fixed to the clamping block (6).

7. The extreme cold-resistant polyurethane funnel according to claim 1, characterized in that: The discharge port of the funnel body (1) is provided with a sealing ring (11), and when all the hoppers (22) are in a closed state, the sealing ring (11) abuts against the inner walls of all the hoppers (22).

8. The extreme cold-resistant polyurethane funnel according to claim 1, characterized in that: A rubber layer (24) is provided between two adjacent hoppers (22).

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