Height-adjustable steel chimney

Abstract

The utility model provides a height-adjustable steel chimney, which relates to the field of asphalt tank chimneys, and comprises a base, the left side of the upper end surface of the base is fixedly connected with an outer pipe, and the lower part of the left side of the outer pipe is communicated with an air inlet pipe; a steel chimney body is arranged in the outer pipe, and a sliding block slidably connected with the interior of the outer pipe is arranged outside the lower end of the steel chimney body. Through the arrangement of the sealing assembly, the gap between the steel chimney main body and the outer pipe can be sealed, the phenomenon of smoke leakage at the gap between the steel chimney main body and the outer pipe is avoided, and the influence on the smoke exhaust effect of the steel chimney main body is avoided; the problems that although an existing asphalt tank chimney can adjust the height of the asphalt tank chimney to enable the asphalt tank chimney to smoothly pass through a height limiting device when a transportation tank car encounters the height limiting device, a gap between a chimney body and an outer pipe is difficult to be effectively sealed, and the phenomenon of smoke leakage occurs in the gap between the chimney body and the outer pipe are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the chimney technical field of asphalt tank, especially a height adjustable steel chimney. BACKGROUND

[0002] In modern society, asphalt is widely used in road paving, building waterproofing and other fields. In the production, storage and use of asphalt, the steel chimney matched with the asphalt tank, as an important storage equipment, plays a key role in discharging flue gas and ensuring environmental safety.

[0003] For example, the existing patent application number: CN202120785687.X discloses a height adjustable asphalt tank chimney, which can adjust the height of the asphalt tank chimney when the transport tank truck encounters a height limiting device, so as to smoothly pass through the height limiting device. However, the gap between the chimney body and the outer pipe cannot be effectively sealed, resulting in smoke leakage between the chimney body and the outer pipe, affecting the smoke exhaust effect of the chimney. In addition, the above-mentioned asphalt tank chimney needs to insert the limiting rod into the limiting groove to limit the chimney body when adjusting the height of the chimney body, which makes the adjustment of the height of the chimney body more complicated. UTILITY MODEL CONTENT

[0004] The disclosed embodiment relates to a height adjustable steel chimney, which can seal the gap between the steel chimney body and the outer pipe through the sealing assembly, avoiding smoke leakage between the steel chimney body and the outer pipe, and affecting the smoke exhaust effect of the steel chimney body. Through the setting of the driving assembly, the effective self-locking effect can be realized between the worm wheel and the worm during the adjustment of the height of the steel chimney body, because the unwinding spiral angle of the worm is smaller than the friction angle of the worm wheel, so that the steel chimney body can be limited without inserting the limiting rod into the limiting groove, thereby improving the convenience of adjusting the height of the steel chimney body.

[0005] The first aspect of the present disclosure provides a highly adjustable steel chimney, comprising: a base, the upper end of the base is fixedly connected with an outer pipe on the left side, and the lower part of the left side of the outer pipe is communicated with an air inlet pipe; the inner part of the outer pipe is provided with a steel chimney body, the lower end of the steel chimney body is provided with a sliding block which is slidingly connected with the inner part of the outer pipe outside, the upper end of the outer pipe is fixedly installed with a supporting top plate, and the upper end surface of the supporting top plate is provided with a sealing assembly outside the steel chimney body; the right end surface of the outer pipe is fixedly connected with a sealing shell, and the sealing shell is provided with a driving assembly; the sealing assembly comprises a H-shaped supporting plate, a clamping screw, a nut, a sealing clamp block, a vertical shaft, a first high-temperature-resistant sealing pad and a second high-temperature-resistant sealing pad, the H-shaped supporting plate is fixedly connected to the upper end surface of the supporting top plate, the front side of the H-shaped supporting plate is rotatably connected with the clamping screw, the right end of the clamping screw is installed with a first bevel gear, the outer part of the clamping screw is provided with two reverse threads in a left-right symmetrical manner, the outer part of the clamping screw is connected with two nuts through the two reverse threads, the rear end of each nut is fixedly connected with a sealing clamp block, the opposite surfaces of the two sealing clamp blocks are both provided with an arc-shaped clamping opening, the opposite surfaces of the two sealing clamp blocks are both provided with a first high-temperature-resistant sealing pad, the opposite surfaces of the two sealing clamp blocks are both provided with four horizontal guide rods which penetrate through the H-shaped supporting plate, the bottom surface of each sealing clamp block is provided with a second high-temperature-resistant sealing pad which is in close contact with the upper end surface of the supporting top plate, and the vertical shaft is rotatably connected to the front end surface of the sealing shell, and the upper end of the vertical shaft is installed with a second bevel gear which is engaged with the first bevel gear.

[0006] In at least some embodiments, a strip-shaped sliding groove is formed on the front, rear, left three sides of the inner part of the outer pipe, and a strip-shaped opening is formed in the middle of the right end surface of the outer pipe.

[0007] In at least some embodiments, a rectangular sliding block is arranged on each of the front, rear, left and right end surfaces of the sliding block, the rectangular sliding blocks on the front, rear and left end surfaces of the sliding block are respectively slidingly connected with the three strip-shaped sliding grooves, one rectangular sliding block on the right side of the sliding block penetrates through the strip-shaped opening, and the right end of one rectangular sliding block on the right side of the sliding block is fixedly connected with a threaded cylinder.

[0008] In at least some embodiments, when the sealing assembly is in a sealing state, the inner arc surfaces of the two first high-temperature-resistant sealing pads are in close contact with the outer circumferential surface of the steel chimney body.

[0009] In at least some embodiments, the driving assembly includes a worm, a worm wheel, a circular driving disc, a transmission shaft and a driving screw, the worm is rotationally connected to the right side of the upper end face of the base, and the front end of the worm is fixedly installed with the circular driving disc, the transmission shaft is rotationally connected to the right side wall of the sealing shell and penetrates the right side wall of the sealing shell, the left and right ends of the transmission shaft are fixedly installed with the third bevel gear and the worm wheel respectively, and the worm wheel is engaged with the worm, and the driving screw is rotationally connected inside the sealing shell and is in threaded connection with the threaded cylinder, the third bevel gear is fixedly installed on the lower end of the driving screw, and the fourth bevel gear is engaged with the third bevel gear.

[0010] In at least some embodiments, the unwinding spiral angle of the worm is less than the friction angle in contact with the worm wheel.

[0011] The utility model provides a height adjustable steel chimney has the following beneficial effects:

[0012] 1. By the setting of the sealing assembly, when the height of the steel chimney body is adjusted, the vertical shaft is manually rotated, the inner arc surfaces of the two first high-temperature-resistant sealing pads are in close contact with the outer peripheral surface of the steel chimney body, and the two second high-temperature-resistant sealing pads are in close contact with the upper end surface of the support top plate at this time, so that the gap between the steel chimney body and the outer pipe can be sealed, the phenomenon of smoke leakage at the gap between the steel chimney body and the outer pipe is avoided, and the smoke exhaust effect of the steel chimney body is not affected.

[0013] 2. By the setting of the driving assembly, when the height of the steel chimney body needs to be adjusted, the circular driving disc is manually rotated, and during the adjustment process, the unwinding spiral angle of the worm is less than the friction angle in contact with the worm wheel, so that the worm wheel and the worm can realize effective self-locking, the limiting rod does not need to be inserted into the limiting groove, and the steel chimney body can be limited, so that the convenience of the steel chimney body during height adjustment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0015] The drawings described in the following description only relate to some embodiments of the utility model, and are not a limitation on the utility model.

[0016] In the drawings:

[0017] Figure 1 The structure schematic view of the overall structure of the application is shown;

[0018] Figure 2 The structure schematic view of the outer pipe and the sealing shell of the application is shown;

[0019] Figure 3 A structure schematic diagram of the outer tube of the present application is shown;

[0020] Figure 4 A structure schematic diagram of the outer tube of the present application is shown;

[0021] Figure 5 A structure schematic diagram of the outer tube of the present application is shown;

[0022] Figure 6 A structure schematic diagram of the outer tube of the present application is shown;

[0023] Figure 7 A structure schematic diagram of the outer tube of the present application is shown;

[0024] Figure 8 A structure schematic diagram of the outer tube of the present application is shown; Figure 3 A structure schematic diagram of the outer tube of the present application is shown;

[0025] List of reference signs

[0026] 1, base;

[0027] 2, outer tube; 201, support top plate; 202, sealing shell; 203, air inlet pipe; 204, strip-shaped sliding groove; 205, strip-shaped through opening;

[0028] 3, steel chimney body; 301, sliding block; 302, rectangular sliding block; 303, threaded cylinder;

[0029] 4, sealing assembly; 401, H-shaped support plate; 402, clamping screw; 403, nut; 404, sealing clamp block; 405, vertical rotating shaft; 406, first high-temperature-resistant sealing gasket; 407, second high-temperature-resistant sealing gasket;

[0030] 5, driving assembly; 501, worm; 502, worm wheel; 503, circular driving disc; 504, transmission shaft; 505, driving screw. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment one: please refer to Figures 1 to 8 :

[0033] The utility model proposes a kind of height-adjustable steel chimney, comprising: base 1, base 1 can be fixedly installed on pitch tank, outer tube 2 is fixedly connected on base 1 upper end face left side, and the lower portion of outer tube 2 left side is communicated with air inlet pipe 203, air inlet pipe 203 is used to be connected with the smoke outlet of pitch tank;Outer tube 2 inside is provided with steel chimney main part 3, steel chimney main part 3 adopts stainless steel material, and corrosion resistance is strong, can improve service life, and the lower end outside of steel chimney main part 3 is provided with the sliding block 301 of sliding connection with the inside of outer tube 2, and outer tube 2 upper end is fixedly installed with support top plate 201, and the upper end surface of support top plate 201 is located the outside of steel chimney main part 3 and is provided with sealing assembly 4;Outer tube 2 right end surface is fixedly connected with sealing shell 202, and sealing shell 202 is provided with driving assembly 5;Sealing assembly 4 includes the support plate 401 of character-shaped, clamping screw 402, nut 403, sealing clamp block 404, vertical pivot 405, first high-temperature-resistant sealing pad 406 and second high-temperature-resistant sealing pad 407, and the support plate 401 of character-shaped is fixedly connected on support top plate 201 upper end surface, and the front side of support plate 401 of character-shaped is rotatably connected with clamping screw 402, and first bevel gear is installed on the right end of clamping screw 402, and two reverse threads are symmetrically arranged on the outside of clamping screw 402, and two nuts 403 are connected to the outside of clamping screw 402 by two reverse threads, and one sealing clamp block 404 is fixedly connected to the rear end of each nut 403, and one arc-shaped clamping port is formed in the opposite surface of two sealing clamp blocks 404, and one first high-temperature-resistant sealing pad 406 is arranged on the opposite surface of two sealing clamp blocks 404, and four horizontal guide rods are arranged on the opposite surface of two sealing clamp blocks 404 and penetrate support plate 401 of character-shaped, and one second high-temperature-resistant sealing pad 407 is arranged on the bottom end surface of each sealing clamp block 404 and is in close contact with the upper end surface of support top plate 201, and vertical pivot 405 is rotatably connected to the front end surface of sealing shell 202, and second bevel gear is installed on the upper end of vertical pivot 405 and is engaged with first bevel gear, and the material of first high-temperature-resistant sealing pad 406 and second high-temperature-resistant sealing pad 407 is glass fiber, and glass fiber has good high-temperature resistance.

[0034] One strip-shaped sliding groove 204 is formed on the front, rear and left three side surfaces of the inside of outer tube 2, and strip-shaped through opening 205 is formed in the middle of the right end surface of outer tube 2, so that one rectangular sliding block 302 on the right side can pass through.

[0035] One rectangular sliding block 302 is arranged on the front, rear, left and right four end surfaces of sliding block 301, and the rectangular sliding blocks 302 on the front, rear and left three end surfaces of sliding block 301 are respectively slidably connected with the three strip-shaped sliding grooves 204, one rectangular sliding block 302 on the right side of sliding block 301 penetrates strip-shaped through opening 205, and one rectangular sliding block 302 on the right side of sliding block 301 is fixedly connected with threaded cylinder 303 on the right end, for being threadedly connected with driving screw 505.

[0036] When the sealing assembly 4 is in a sealing state, the inner arc surfaces of the two first high-temperature-resistant sealing gaskets 406 are in close contact with the outer circumferential surface of the steel chimney body 3, and at this time, the two second high-temperature-resistant sealing gaskets 407 are in close contact with the upper end surface of the support top plate 201, so that the gap between the steel chimney body 3 and the outer pipe 2 can be sealed.

[0037] In example two, on the basis of example one, as shown in Figure 1 、 Figure 3 and Figure 8 , the driving assembly 5 includes a worm 501, a worm wheel 502, a circular driving disc 503, a transmission shaft 504 and a driving screw 505, the worm 501 is rotationally connected to the right side of the upper end surface of the base 1, and the front end of the worm 501 is fixedly installed with the circular driving disc 503, the transmission shaft 504 is rotationally connected to the right side wall of the sealing shell 202 and penetrates the right side wall of the sealing shell 202, the left and right ends of the transmission shaft 504 are respectively fixedly installed with a third bevel gear and the worm wheel 502, and the worm wheel 502 is engaged with the worm 501, the driving screw 505 is rotationally connected inside the sealing shell 202 and is threadedly connected with the threaded cylinder 303, the third bevel gear is fixedly installed on the lower end of the outside of the driving screw 505, and the fourth bevel gear is engaged with the third bevel gear; the unwinding spiral angle of the worm 501 is smaller than the friction angle in contact with the worm wheel 502, so that the worm wheel 502 and the worm 501 can realize effective self-locking effect, so that the steel chimney body 3 can be limited without inserting the limiting rod into the limiting groove, thereby improving the convenience of the steel chimney body 3 in adjusting the height.

[0038] The working principle of the embodiment is: when the height of the steel chimney body 3 needs to be adjusted during use, for example, when the transport tank vehicle encounters a height limiting device, the circular driving disc 503 can be manually rotated to rotate the worm 501, the worm wheel 502, the transmission shaft 504, the third bevel gear, the fourth bevel gear and the driving screw 505, and then the threaded cylinder 303 moves downward with the rectangular sliding block 302, the sliding block 301 and the steel chimney body 3 under the action of threads, so that the height of the steel chimney body 3 is adjusted to be low, and the reverse operation can adjust the height of the steel chimney body 3 to be high.

[0039] When the height of the steel chimney body 3 is adjusted, the vertical shaft 405 is manually rotated, and the second bevel gear, the first bevel gear and the clamping screw 402 are rotated, at this time, the two nuts 403 are moved to the opposite directions with the two sealing blocks 404 and the two first high-temperature-resistant sealing pads 406 under the action of the two reverse threads outside the clamping screw 402, and finally the inner arc surfaces of the two first high-temperature-resistant sealing pads 406 are in close contact with the outer circumferential surface of the steel chimney body 3, and at this time, the two second high-temperature-resistant sealing pads 407 are in close contact with the upper end surface of the support top plate 201, so that the gap between the steel chimney body 3 and the outer pipe 2 can be sealed, and the phenomenon of smoke leakage between the steel chimney body 3 and the outer pipe 2 can be avoided.

[0040] In this document, the following points need to be noted:

[0041] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0042] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0043] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A height-adjustable steel chimney, comprising: The base (1) upper end face left side fixedly connected with the outer tube (2), and the outer tube (2) left side lower part is communicated with the air inlet pipe (203); characterized in that, the outer tube (2) inside is provided with steel chimney main part (3), steel chimney main part (3) lower end outside is provided with with outer tube (2) inside sliding connection's sliding block (301), the outer tube (2) upper end fixedly installed with support top plate (201), and support top plate (201) upper end face is located steel chimney main part (3) outside is provided with sealing assembly (4);The outer tube (2) right end surface is fixedly connected with the sealing shell (202), and the sealing shell (202) is provided with driving assembly (5); The sealing assembly (4) includes the character-shaped support plate (401), the clamping screw rod (402), the nut (403), the sealing clamp block (404), the vertical rotating shaft (405), the first high-temperature-resistant sealing pad (406) and the second high-temperature-resistant sealing pad (407), the character-shaped support plate (401) is fixedly connected on the upper end surface of the support top plate (201), and the front side of the character-shaped support plate (401) is rotatably connected with the clamping screw rod (402), the first bevel gear is installed on the right end of the clamping screw rod (402), the clamping screw rod (402) is provided with two reverse threads outside in a left-right symmetrical manner, and the clamping screw rod (402) is connected with two nuts (403) outside through the two reverse threads, one sealing clamp block (404) is fixedly connected to the rear end of each nut (403), an arc-shaped clamping opening is formed in the opposite surface of each of the two sealing clamp blocks (404), and a first high-temperature-resistant sealing pad (406) is arranged on the opposite surface of each of the two sealing clamp blocks (404), four horizontal guide rods penetrating through the character-shaped support plate (401) are arranged on the opposite surface of each of the two sealing clamp blocks (404), and a second high-temperature-resistant sealing pad (407) is arranged on the bottom surface of each sealing clamp block (404) and tightly contacts with the upper end surface of the support top plate (201), the vertical rotating shaft (405) is rotatably connected to the front end surface of the sealing shell (202), and a second bevel gear meshing with the first bevel gear is installed on the upper end of the vertical rotating shaft (405).

2. A height adjustable steel chimney according to claim 1, characterized in that: The outer tube (2) is provided with a strip-shaped sliding groove (204) on the front, rear, left and right sides, and a strip-shaped opening (205) is formed in the middle of the right end surface of the outer tube (2).

3. A height adjustable steel chimney according to claim 2, characterized in that: The sliding block (301) is provided with a rectangular sliding block (302) on the front, rear, left and right end surfaces, and the rectangular sliding blocks (302) on the front, rear, left and right end surfaces of the sliding block (301) are respectively slidably connected with the three strip-shaped sliding grooves (204), and the rectangular sliding block (302) on the right side of the sliding block (301) penetrates through the strip-shaped opening (205), and the right end of the rectangular sliding block (302) on the right side of the sliding block (301) is fixedly connected with a threaded cylinder (303).

4. A height adjustable steel chimney according to claim 1, characterized in that: When the sealing assembly (4) is in a sealed state, the inner arc surfaces of the two first high-temperature-resistant sealing pads (406) are in close contact with the outer circumferential surface of the steel chimney main part (3).

5. A height adjustable steel chimney according to claim 3, characterized in that: The belt driving assembly (5) comprises a worm (501), a worm wheel (502), a circular driving disc (503), a transmission shaft (504) and a driving screw (505), the worm (501) is rotationally connected to the right side of the upper end face of the base (1), the front end of the worm (501) is fixedly installed with the circular driving disc (503), the transmission shaft (504) is rotationally connected to the right side wall of the sealing shell (202) and penetrates the right side wall of the sealing shell (202), the left and right ends of the transmission shaft (504) are fixedly installed with a third bevel gear and the worm wheel (502) respectively, the worm wheel (502) is engaged with the worm (501), the driving screw (505) is rotationally connected to the inside of the sealing shell (202) and is in threaded connection with the threaded cylinder (303), the outer lower end of the driving screw (505) is fixedly installed with the third bevel gear, and the fourth bevel gear is engaged with the third bevel gear.

6. A height adjustable steel chimney according to claim 5, characterized in that: The unwinding spiral angle of the worm (501) is less than the friction angle in contact with the worm wheel (502).

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