A kind of atomizing spraying device for hardware products

Abstract

The invention discloses a hardware product atomizing spraying device, which relates to the technical field of spraying devices, and has a structure including a box body, a box door is rotatably connected to the front of the box body, a liquid storage tank is fixedly connected to the top of the box body, a spraying mechanism is fixedly connected to the inner top wall of the box body, a spraying platform is fixedly connected to the inner bottom wall of the box body, and the spraying mechanism includes a mounting plate, the mounting plate is fixedly connected to the inner wall of the box body, and a connecting pipe is connected to the bottom pipe of the mounting plate. The hardware product atomizing spraying device drives the inner nozzle to rotate by toggling an adjusting rod, so that the apertures between the outer nozzle and the inner nozzle are mutually blocked or extended, so that the size of the aperture when the nozzle sprays can be adjusted, so that the spraying effect of the nozzle can be changed, and the spraying effect of the nozzle can be changed without replacing nozzles with different apertures, thereby improving the working efficiency of the device, and the size of the aperture change can be intuitively viewed by observing the scale line.

Description

Technical Field

[0001] The invention relates to the technical field of spraying devices, in particular to an atomizing spraying device for hardware products. Background Art

[0002] Hardware product spraying is the use of compressed air to disperse liquid coating (commonly known as paint) into paint mist particles that adhere to the surface of the coated object. The atomized spraying in painting is also called non-material spraying, also known as non-period. It refers to the use of flying objects to spray in a scattered flower shape to obtain the desired effect. It is generally used in the construction of metallic paint. Metallic period, because it contains metal particles, some of which are made of materials such as swimming mother-of-pearl and have a large proportion, can be achieved by using atomized spraying. Special effects.

[0003] Existing hardware product atomizing spray devices use nozzles of different particle sizes to achieve different spraying effects, and nozzles of different aperture sizes are often replaced to achieve this. Existing hardware product atomizing spray devices cannot adjust the atomizing particle size as needed, and it is troublesome to replace them during use. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a hardware product atomizing spray device, which solves the problem that in order to achieve different spraying effects, nozzles with different particle sizes are used and nozzles with different aperture sizes are often replaced. The existing hardware product atomizing spray device cannot adjust the atomizing particle size as needed, and it is troublesome to replace it during use.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an atomizing spray device for hardware products, comprising a box body, the front side of the box body is rotatably connected to a box door, the top of the box body is fixedly connected to a liquid storage tank, the inner top wall of the box body is fixedly connected to a spray mechanism, the inner bottom wall of the box body is fixedly connected to a spraying platform, the spray mechanism comprises a mounting plate, the mounting plate is fixedly connected to the inner wall of the box body, the bottom pipe of the mounting plate is connected to a connecting pipe, the top end of the connecting pipe passes through the mounting plate and the top wall of the box body and is connected to the bottom of the liquid storage tank, the pipe connection of the connecting pipe is provided with a leak-proof mechanism, the top of the leak-proof mechanism is threadedly connected to a filtering mechanism, the bottom of the filtering mechanism is threadedly connected to a spray head, the spray mechanism is fixedly installed on the inner top wall of the box body through the mounting plate in the spray mechanism, the spray material in the liquid storage tank is discharged through the connecting pipe, and enters the filtering mechanism through the leak-proof mechanism to filter impurities therein.

[0008] Preferably, the nozzle includes an outer nozzle, the top of the outer nozzle is threadedly connected to the bottom of the filtering mechanism, the inner part of the outer nozzle is movably connected to the inner nozzle, and the surfaces of the outer nozzle and the inner nozzle are both provided with spray holes, and the apertures between the outer nozzle and the inner nozzle are mutually blocked or enlarged through the mutual rotation between the outer nozzle and the inner nozzle.

[0009] Preferably, an adjustment groove is provided on the top of one side of the outer nozzle, an adjustment rod is provided on the top of one side of the inner nozzle and is fixedly connected through the adjustment groove, and scale lines are provided on the surface of the outer nozzle and on the top side of the adjustment groove. The inner nozzle is rotated by turning the adjustment rod, so that the gap between the spray holes of the outer nozzle and the inner nozzle changes, and the size of the aperture change can be intuitively viewed by observing the scale lines.

[0010] Preferably, a fixed plate is fixedly connected to the middle of the inner nozzle, and a plurality of rotating blocks are rotatably connected to the surface of the fixed plate. The surface of the rotating block is provided with grooves, and the rotation of the rotating block can achieve the effect of uniform stirring, thereby making the spraying effect better.

[0011] Preferably, the leak-proof mechanism includes a fixed shell, a connecting plate is fixedly connected to the internal top side of the fixed shell, a telescopic strip is elastically connected to the bottom of the connecting plate, and a leak-proof plug is elastically connected to the bottom of the telescopic strip. The leak-proof mechanism allows the residual material inside the connecting tube to remain inside the connecting tube when the nozzle stops working, so that it will not drip onto the product.

[0012] Preferably, a clamping plate is fixedly connected to the bottom side of the inner wall of the fixed shell, one end of the clamping plate is located on the bottom side of the anti-leakage plug, and a reset bar is elastically connected to one side of the bottom of the clamping plate. When the nozzle stops spraying material, due to the pressure reduction, the reset bar causes the clamping plate to press against the anti-leakage plug and move upward until the inlet at the top of the fixed shell is blocked, thereby preventing the sprayed material from continuing to drip.

[0013] Preferably, the filter mechanism includes a mounting tube, the interior of the mounting tube is slidably connected to a filter shell, the top of the filter shell is rotatably connected to a movable plate, both sides of the movable plate are elastically connected to the surface of the filter shell with a return spring, the inner wall of the mounting tube is fixedly connected to a clamping piece, when the spray passes through the inside of the mounting ring, the sliding plate withstands the force of the return spring due to the impact of the liquid, so that the liquid enters the inner cavity of the filter shell for filtration.

[0014] Preferably, the clamping member includes a clamping groove, which is opened on the inner wall of the mounting tube, and a clamping rod is rotatably connected to the inside of the clamping groove, and a clamping strip is elastically connected between one side of the clamping rod and the inner wall of the mounting tube. The side wall of the filter shell presses against the clamping rod inside the clamping groove and slides to the bottom of the clamping rod. Since the flow direction of the liquid is from the top to the bottom of the mounting tube, the filter shell is fixed by the clamping rod.

[0015] (III) Beneficial effects

[0016] The present invention provides a hardware product atomization spraying device, which has the following beneficial effects:

[0017] (I) The atomizing spray device of the hardware product drives the inner nozzle to rotate by toggling the adjusting rod, so that the gap between the spray holes of the outer nozzle and the inner nozzle changes. The outer nozzle and the inner nozzle rotate with each other, so that the apertures between the outer nozzle and the inner nozzle are mutually blocked or enlarged, so that the size of the aperture when the nozzle sprays can be adjusted, so that the spraying effect of the nozzle can be changed. The spraying effect of the nozzle can be changed without replacing nozzles with different apertures, thereby improving the working efficiency of the device. The size of the aperture change can be intuitively viewed by observing the scale line.

[0018] (ii) In the atomizing spray device for hardware products, when the spray material passes through the inside of the inner nozzle, the rotating block will rotate due to impact, and then enter the other side of the fixed plate through the hole on the fixed plate. The rotation of the rotating block can achieve a uniform stirring effect, thereby making the spraying effect better. The contact area between the spray material and the rotating block can be increased by setting the groove, thereby making the stirring efficiency higher.

[0019] (III) For the atomizing spray device for hardware products, when the nozzle is spraying normally, the anti-leakage plug inside the fixed shell is opened due to the impact of air flow and liquid flow, so that normal spraying can be performed. When the nozzle stops spraying, due to the pressure reduction, the reset bar causes the pressing plate to press against the anti-leakage plug and move upward until the inlet at the top of the fixed shell is blocked, thereby preventing the spray material from continuing to drip, thereby preventing the residual material in the connecting pipe from continuing to drip onto the product when the nozzle stops working, thereby making the surface of the hardware product sprayed more evenly and improving the spraying effect.

[0020] (IV) In the atomizing spray device of the hardware product, when the spray passes through the inside of the mounting ring, the impact of the liquid causes the sliding plate to withstand the force of the return spring and work, so that the liquid enters the inner cavity of the filter shell for filtration. When the liquid pressure decreases, the return spring drives the movable plate to return to its original position, so that the impurities inside the filter shell cannot go out, thereby removing the impurities in the spray and improving the quality of the spray.

[0021] (V) The atomizing spray device of the hardware product is designed to prevent the filter shell from being fixed in the mounting tube to be more stable. When the filter shell is inserted into the mounting tube, the side wall of the filter shell presses against the clamping rod inside the clamping groove and slides to the bottom of the clamping rod. Since the flow direction of the liquid is from the top to the bottom of the mounting tube, the filter shell is fixed by the clamping rod. When the filter shell needs to be replaced, the mounting tube is removed from the leak-proof mechanism and the nozzle by twisting the mounting tube, and the filter shell is manually pulled upward to press the clamping rod and taken out. It is convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the material spraying mechanism of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the nozzle of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the leakage prevention mechanism of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the filtering mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the clamping member of the present invention.

[0028] In the figure: 1. box body; 2. box door; 3. liquid storage tank; 4. spraying mechanism; 41. mounting plate; 42. connecting pipe; 43. anti-leakage mechanism; 431. fixed shell; 432. connecting plate; 433. telescopic strip; 434. anti-leakage plug; 435. pressing plate; 436. reset strip; 44. filtering mechanism; 441. mounting tube; 442. filtering shell; 443. movable plate; 444. reset spring; 445. clamping part; a1. clamping groove; a2. clamping rod; a3. clamping strip; 45. nozzle; 451. outer nozzle; 452. inner nozzle; 453. adjusting groove; 454. adjusting rod; 455. scale line; 456. fixed plate; 457. rotating block; 5. spraying platform. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-6The present invention provides a technical solution: an atomizing spraying device for hardware products, the structure of which includes a box body 1, a box door 2 is rotatably connected to the front of the box body 1, a liquid storage tank 3 is fixedly connected to the top of the box body 1, a spraying mechanism 4 is fixedly connected to the inner top wall of the box body 1, and a spraying platform is fixedly connected to the inner bottom wall of the box body 1. The spraying mechanism 4 includes a mounting plate 41, the mounting plate 41 is fixedly connected to the inner wall of the box body 1, the bottom pipe of the mounting plate 41 is connected with a connecting pipe 42, the top end of the connecting pipe 42 passes through the mounting plate 41 and the top wall of the box body 1 and is connected to the bottom of the liquid storage tank 3, the pipe of the connecting pipe 42 is connected with a leak-proof mechanism 43, and the top of the leak-proof mechanism 43 is threadedly connected There is a filtering mechanism 44, and the bottom of the filtering mechanism 44 is threadedly connected with a nozzle 45. Specifically, when in use, the hardware product is placed on the spraying platform, and then the box door 2 is closed. The spray material in the liquid storage tank 3 is sprayed onto the surface of the hardware product through the spray mechanism 4. The spray mechanism 4 is fixedly installed on the inner top wall of the box body 1 through the mounting plate 41 in the spray mechanism 4. The spray material in the liquid storage tank 3 is discharged through the connecting pipe 42, and enters the filtering mechanism 44 through the leak-proof mechanism 43 to filter out impurities therein to prevent the impurities therein from affecting the quality of the spray material. Before spraying, the effect of the spray material is determined by adjusting the size of the aperture of the nozzle 45.

[0031] Among them, the nozzle 45 includes an outer nozzle 451, the top of the outer nozzle 451 is threadedly connected to the bottom of the filtering mechanism 44, the inner nozzle 452 is movably connected inside the outer nozzle 451, and the surfaces of the outer nozzle 451 and the inner nozzle 452 are both provided with spray holes. Specifically, through the mutual rotation between the outer nozzle 451 and the inner nozzle 452, the apertures between the outer nozzle 451 and the inner nozzle 452 are mutually blocked or extended, so that the size of the aperture when the nozzle 45 sprays can be adjusted, thereby changing the spraying effect of the nozzle 45, and the spraying effect of the nozzle 45 can be changed without replacing the nozzle 45 with different apertures, thereby improving the working efficiency of the device.

[0032] Among them, an adjustment groove 453 is opened on the top of one side of the outer nozzle 451, and an adjustment rod 454 is fixedly connected to the top of one side of the inner nozzle 452 and passes through the adjustment groove 453. A scale line 455 is opened on the surface of the outer nozzle 451 and located on the top side of the adjustment groove 453. Specifically, by turning the adjustment rod 454 to drive the inner nozzle 452 to rotate, the gap between the spray holes of the outer nozzle 451 and the inner nozzle 452 is changed, and the size of the aperture change can be intuitively viewed by observing the scale line 455.

[0033] Among them, a fixed plate 456 is fixedly connected to the middle of the inner nozzle 452, and a plurality of rotating blocks 457 are rotatably connected to the surface of the fixed plate 456. A groove is provided on the surface of the rotating block 457. Specifically, when the spray material passes through the inner nozzle 452, the rotating block 457 will rotate due to impact, and then enter the other side of the fixed plate 456 through the hole on the fixed plate 456. The rotation of the rotating block 457 can achieve the effect of stirring evenly, so that the spraying effect is better. The contact area between the spray material and the rotating block 457 can be increased by setting the groove, so that the stirring efficiency is higher.

[0034] Among them, the leak-proof mechanism 43 includes a fixed shell 431, the internal top side of the fixed shell 431 is fixedly connected with a connecting plate 432, the bottom of the connecting plate 432 is elastically connected with a telescopic strip 433, and the bottom of the telescopic strip 433 is elastically connected with a leak-proof plug 434. Specifically, when the traditional nozzle 45 stops spraying, the residual material in the connecting tube 42 will continue to fall and drip onto the hardware product, thereby making the surface of the sprayed hardware product uneven. The leak-proof mechanism 43 allows the nozzle 45 to keep the residual material inside the connecting tube 42 inside the connecting tube 42 when it stops working, so that it will not drip onto the product. When the nozzle 45 sprays normally, the leak-proof plug 434 inside the fixed shell 431 is opened due to the impact of the air flow and the liquid flow, so that it can spray normally.

[0035] Among them, a clamping plate 435 is fixedly connected to the bottom side of the inner wall of the fixed shell 431, one end of the clamping plate 435 is located on the bottom side of the anti-leakage plug 434, and a reset bar 436 is elastically connected to one side of the bottom of the clamping plate 435. Specifically, when the nozzle 45 stops spraying, due to the pressure reduction, the reset bar 436 makes the clamping plate 435 press against the anti-leakage plug 434 and move upward until the inlet at the top of the fixed shell 431 is blocked, thereby preventing the sprayed material from continuing to drip.

[0036] Among them, the filter mechanism 44 includes a mounting tube 441, the interior of the mounting tube 441 is slidably connected to a filter shell 442, the top of the filter shell 442 is rotatably connected to a movable plate 443, both sides of the movable plate 443 and the surface of the filter shell 442 are elastically connected with a return spring 444, and the inner wall of the mounting tube 441 is fixedly connected with a clamping piece 445. Specifically, when the spray material passes through the inside of the mounting ring, the impact of the liquid makes the sliding plate withstand the force of the return spring 444 to work, so that the liquid enters the inner cavity of the filter shell 442 for filtration, and when the liquid pressure decreases, the return spring 444 drives the movable plate 443 to return to its original position, so that impurities inside the filter shell 442 cannot go out, thereby removing impurities in the spray material and improving the quality of the spray material.

[0037] Among them, the clamping piece 445 includes a clamping groove a1, and the clamping groove a1 is opened on the inner wall of the mounting tube 441. The inside of the clamping groove a1 is rotatably connected with a clamping rod a2, and one side of the clamping rod a2 and the inner wall of the mounting tube 441 are elastically connected with a clamping strip a3. Specifically, in order to prevent the filter shell 442 from being fixed in the mounting tube 441 more stably, when the filter shell 442 is inserted into the mounting tube 441, the side wall of the filter shell 442 presses against the clamping rod a2 inside the clamping groove a1 and slides to the bottom of the clamping rod a2. Since the flow direction of the liquid is from the top to the bottom of the mounting tube 441, the filter shell 442 is fixed by the clamping rod a2. When the filter shell 442 needs to be replaced, the mounting tube 441 is removed from the leak-proof mechanism 43 and the nozzle 45 by screwing it, and the filter shell 442 is manually pulled upward to press the clamping rod a2 and be taken out. It is convenient and quick to use.

[0038] During operation, when in use, the hardware product is placed on the spraying platform, and then the box door 2 is closed, and the spray material in the liquid storage tank 3 is sprayed onto the surface of the hardware product through the spray mechanism 4, and the spray mechanism 4 is fixedly installed on the inner top wall of the box body 1 through the mounting plate 41 in the spray mechanism 4, and the spray material in the liquid storage tank 3 is led out through the connecting pipe 42, and enters the filtering mechanism 44 through the leak-proof mechanism 43 to filter the impurities therein, so as to prevent the impurities therein from affecting the quality of the spray material. Before spraying, the effect of the spraying is determined by adjusting the size of the aperture of the nozzle 45, and the apertures between the outer nozzle 451 and the inner nozzle 452 are mutually blocked or extended by the mutual rotation between the outer nozzle 451 and the inner nozzle 452, so that the spraying of the nozzle 45 can be adjusted. The size of the aperture when spraying material can be changed, thereby changing the spraying effect of the nozzle 45. The spraying effect of the nozzle 45 can be changed without replacing the nozzle 45 of different apertures, thereby improving the working efficiency of the device. The inner nozzle 452 is driven to rotate by toggling the adjustment rod 454, so that the gap between the spray holes of the outer nozzle 451 and the inner nozzle 452 is changed. The size of the aperture change can be intuitively viewed by observing the scale line 455. When the spray material passes through the inside of the inner nozzle 452, it will cause the rotating block 457 to rotate through the impact, so that it enters the other side of the fixed plate 456 through the hole on the fixed plate 456. The rotation of the rotating block 457 can achieve a uniform stirring effect, thereby making the spraying effect better. The arrangement of the groove can increase the contact area between the spray material and the rotating block 457, thereby making the stirring efficiency higher. When the conventional spray head 45 stops spraying, the residual material in the connecting pipe 42 will continue to fall and drip onto the hardware product, thereby making the surface of the sprayed hardware product uneven. The anti-leakage mechanism 43 allows the residual material inside the connecting pipe 42 to remain inside the connecting pipe 42 when the spray head 45 stops working, so that it will not drip onto the product. When the spray head 45 sprays normally, the anti-leakage plug 434 inside the fixed shell 431 is opened due to the impact of the air flow and the liquid flow, so that normal spraying can be achieved. When the spray head 45 stops spraying, due to the pressure reduction, the reset bar 436 causes the pressing plate 435 to press against the anti-leakage plug 434 and move upward until the fixed shell 431 is fixed. The inlet at the top of the fixed shell 431 is blocked, thereby preventing the spray material from continuing to drip. When the spray material passes through the inside of the mounting ring, the impact of the liquid causes the sliding plate to withstand the force of the return spring 444, allowing the liquid to enter the inner cavity of the filter shell 442 for filtration. When the liquid pressure decreases, the return spring 444 drives the movable plate 443 to return to its original position, so that the impurities inside the filter shell 442 cannot go out, thereby removing the impurities in the spray material and improving the quality of the spray material. In order to prevent the filter shell 442 from being fixed in the mounting tube 441 more stably, when the filter shell 442 is inserted into the mounting tube 441, the side wall of the filter shell 442 abuts against the clamping rod a2 inside the clamping groove a1 and slides to the bottom of the clamping rod a2. Since the flow direction of the liquid is from the top to the bottom of the mounting tube 441,Thus, the filter housing 442 is fixed by the clamping rod a2. When the filter housing 442 needs to be replaced, the mounting tube 441 is screwed to remove the mounting tube 441 from the leak-proof mechanism 43 and the nozzle 45, and the filter housing 442 is manually pulled upward to press the clamping rod a2 and removed, which is convenient and quick to use.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hardware product atomizing spraying device, comprising a housing (1), characterized in that: The front of the box body (1) is rotatably connected to a box door (2), the top of the box body (1) is fixedly connected to a liquid storage tank (3), the inner top wall of the box body (1) is fixedly connected to a spraying mechanism (4), the inner bottom wall of the box body (1) is fixedly connected to a spraying platform (5), the spraying mechanism (4) comprises a mounting plate (41), the mounting plate (41) is fixedly connected to the inner wall of the box body (1), the bottom pipe of the mounting plate (41) is connected to a connecting pipe (42), the top end of the connecting pipe (42) passes through the mounting plate (41) and the top wall of the box body (1) and is connected to the bottom of the liquid storage tank (3), the pipe connection of the connecting pipe (42) is connected to a leak-proof mechanism (43), the bottom of the leak-proof mechanism (43) is threadedly connected to a filtering mechanism (44), and the bottom of the filtering mechanism (44) is threadedly connected to a spray head (45); The nozzle (45) comprises an outer nozzle (451), the top of the outer nozzle (451) is threadedly connected to the bottom of the filter mechanism (44), the inner part of the outer nozzle (451) is movably connected to the inner nozzle (452), and the surfaces of the outer nozzle (451) and the inner nozzle (452) are both provided with nozzle holes; An adjustment groove (453) is provided at the top of one side of the outer nozzle (451); an adjustment rod (454) is fixedly connected to the top of one side of the inner nozzle (452) through the adjustment groove (453); and a scale mark (455) is provided on the surface of the outer nozzle (451) and located at the top side of the adjustment groove (453); A fixing plate (456) is fixedly connected to the middle of the inner nozzle (452), a plurality of rotating blocks (457) are rotatably connected to the surface of the fixing plate (456), and grooves are formed on the surfaces of the rotating blocks (457); The anti-leakage mechanism (43) comprises a fixed shell (431), the internal top side of the fixed shell (431) is fixedly connected to a connecting plate (432), the bottom of the connecting plate (432) is elastically connected to a telescopic strip (433), and the bottom of the telescopic strip (433) is elastically connected to an anti-leakage plug (434); A clamping plate (435) is fixedly connected to the bottom side of the inner wall of the fixed shell (431), one end of the clamping plate (435) is located at the bottom side of the anti-leakage plug (434), and a reset strip (436) is elastically connected to one side of the bottom of the clamping plate (435); The filtering mechanism (44) comprises a mounting tube (441), the interior of the mounting tube (441) being slidably connected to a filtering shell (442), the top of the filtering shell (442) being rotatably connected to a movable plate (443), both sides of the movable plate (443) being elastically connected to the surface of the filtering shell (442) with a return spring (444), and the inner wall of the mounting tube (441) being fixedly connected to a clamping piece (445); The clamping member (445) comprises a clamping slot (a1), the clamping slot (a1) being formed on the inner wall of the mounting tube (441), a clamping rod (a2) being rotatably connected inside the clamping slot (a1), and a clamping strip (a3) ​​being elastically connected between one side of the clamping rod (a2) and the inner wall of the mounting tube (441).

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