Pneumatic dry ice spraying device

Abstract

The utility model discloses a pneumatic dry ice spraying device which comprises a main body mechanism and an adjusting mechanism, the main body mechanism comprises a shell, a first cover plate installed at the top end of the shell in a threaded connection mode, an injection pipe arranged at the bottom end of the shell and communicated with an inner cavity of the shell, a connecting pipe installed at one end of the injection pipe, a barrel fixed to one side of the shell through a support, and a second cover plate installed at the top end of the barrel in a threaded connection mode. The shell is used for containing dry ice particles needing to be jetted, the first cover plate is in threaded connection, mounting and dismounting are convenient, the use convenience is improved, the structure is simple, the structure is convenient, the structure is simple, the use is convenient, and the practicability is high. The pneumatic dry ice spraying device is used for spraying dry ice particles and sealing the shell, the dry ice particles and the shell are both made of thermal insulation materials, the dry ice particles are prevented from being gasified before spraying, and the pneumatic dry ice spraying device has the advantages of pneumatic spraying and adjustable spraying speed.

Description

Technical Field

[0001] The utility model relates to the technical field of dry ice blasting devices, in particular to a pneumatic dry ice blasting device. Background Art

[0002] Traditional dry ice blasting devices have one common feature: they all use 220V or 380V power to maintain the operation of the dry ice blasting device, and the body and its components are basically made of metal materials. Once these devices are exposed to high potential, they will bring about insulation safety problems and electromagnetic interference problems.

[0003] Traditional dry ice blasting devices can achieve good cleaning effects when cleaning at the same level or with similar heights and short pipelines. However, when the height difference between the cleaning object and the dry ice blasting device is large and the pipeline is long, the cleaning efficiency is relatively low, and there are problems such as large loss of dry ice particles along the way and low utilization rate. Therefore, in order to improve the cleaning efficiency and cleaning effect, it is necessary to reduce the height difference between the dry ice blasting device and the object to be cleaned, and shorten the pipeline length between the dry ice blasting device and the spray gun as much as possible. However, under high potential conditions, the closer the dry ice machine is to the object to be cleaned, the higher the electromagnetic field strength around it. Therefore, traditional dry ice blasting devices will face problems with insulation safety and electromagnetic interference, and cannot be used in strong electromagnetic environments. Therefore, a new type of dry ice blasting device is urgently needed. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a pneumatic dry ice blasting device, comprising: a main body mechanism and an adjusting mechanism, the main body mechanism comprising a shell, a first cover plate installed on the top of the shell through a threaded connection, a spray pipe arranged at the bottom of the shell and connected to the inner cavity of the shell, a connecting pipe installed at one end of the spray pipe, a cylinder fixed to one side of the shell through a bracket, a second cover plate installed on the top of the cylinder through a threaded connection, a hose connecting the second cover plate and the end of the spray pipe, an electric heating pipe installed at the bottom of the cylinder and extending into the inner cavity of the cylinder, and an air pressure sensor installed on one side of the cylinder and extending into the cylinder.

[0006] The regulating mechanism comprises a sleeve rotatably mounted on the end of the injection pipe, a gear ring fixedly sleeved on the outer surface of the sleeve, a driving member mounted on the injection pipe, a fixed baffle fixed on the inner wall of the injection pipe and a regulating member fixed on the inner wall of the sleeve.

[0007] In a preferred example, the utility model can be further configured as follows: the driving member includes a motor fixed on the outer side of the injection pipe and a gear mounted on the motor shaft, and the gear is meshed with the gear ring.

[0008] In a preferred example, the utility model can be further configured as follows: an annular protrusion is provided on the outer surface of the injection pipe, an annular groove is opened on the inner wall of the sleeve, and the annular protrusion is embedded in the annular groove.

[0009] In a preferred example, the utility model can be further configured as follows: one end of the hose is connected to the second cover plate, and the other end is connected to the sleeve.

[0010] In a preferred example, the utility model can be further configured as follows: the adjusting member includes support rods fixed on the inner wall of the sleeve in an annular array, a rotating shaft fixed to the end of the support rods, and a movable baffle fixedly sleeved on the rotating shaft.

[0011] In a preferred example, the utility model can be further configured as follows: the movable baffle plate is tightly attached to the fixed baffle plate, and the surfaces of both of them are provided with three through holes in a circular array.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the utility model, a shell is provided, and a spray pipe is installed at the bottom end of the shell to communicate with the inner cavity of the shell, and a cylinder is installed on one side of the shell. A second cover plate is installed on the top end of the cylinder through a threaded connection, and the second cover plate is connected to one end of the spray pipe through a hose. In addition, an electric heating tube extending into the inner cavity of the cylinder is installed at the bottom end of the cylinder, and an air pressure sensor extending into the cylinder is installed on one side of the cylinder. Through the above arrangement, when in use, dry ice particles are respectively placed in the shell and the cylinder. During spraying, the electric heating tube is started to heat the dry ice in the cylinder. After heating, the dry ice in the cylinder vaporizes and expands, generating high-pressure gas in the cylinder. The high-pressure gas enters the spray pipe through the hose, and the dry ice particles in the inner cavity of the shell fall into the spray pipe. At this time, the high-pressure airflow carries the dry ice particles and sprays them out through the spray pipe. By replacing electric with pneumatic, the dry ice spraying device can safely enter a strong electromagnetic field environment to meet the cleaning tasks in specific occasions.

[0014] 2. In the utility model, a sleeve is rotatably installed at one end of the injection pipe to connect one end of the hose with the sleeve, and a gear ring is installed on the outer side of the sleeve. A driving member is installed on the injection pipe, and the driving member is used to drive the gear ring to rotate, thereby driving the sleeve to rotate. At the same time, a fixed baffle is installed on the inner wall of the injection pipe, and an adjusting member is fixed on the inner wall of the sleeve. The adjusting member is driven to rotate by the rotation of the sleeve, and the intersection area between the adjusting member and the fixed baffle is controlled, that is, the flow rate of the high-pressure airflow entering the injection pipe is controlled, so as to realize the control of the dry ice injection speed and further increase the practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 Cross-sectional schematic view of the present utility model;

[0017] Figure 3 Partial structural exploded view of the present utility model;

[0018] Figure 4 Schematic view of the adjusting member structure of the present utility model.

[0019] Reference numerals:

[0020] 100, main body mechanism; 110, housing; 120, first cover plate; 130, spray pipe; 131, annular protrusion; 140, connecting pipe; 150, cylinder; 160, second cover plate; 170, hose; 180, electric heating pipe; 190, air pressure sensor;

[0021] 200, adjusting mechanism; 210, sleeve; 211, annular groove; 220, toothed ring; 230, driving member; 231, motor; 232, gear; 240, fixed baffle; 250, adjusting member; 251, support rod; 252, rotating shaft; 253, movable baffle. Detailed implementation manners

[0022] To make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0023] Some embodiments of the present utility model will be described below in conjunction with the accompanying drawings.

[0024] Embodiment 1:

[0025] Combined with Figures 1-4 As shown, this embodiment provides a pneumatic dry ice spraying device, including: a main body mechanism 100 and an adjusting mechanism 200.

[0026] Among them, the main body mechanism 100 includes a housing 110, a first cover plate 120 installed at the top end of the housing 110 by threaded connection, a spray pipe 130 provided at the bottom end of the housing 110 and communicating with the inner cavity of the housing 110, a connecting pipe 140 installed at one end of the spray pipe 130, a cylinder 150 fixed to one side of the housing 110 by a bracket, a second cover plate 160 installed at the top end of the cylinder 150 by threaded connection, a hose 170 connecting the second cover plate 160 and the end of the spray pipe 130, an electric heating pipe 180 installed at the bottom end of the cylinder 150 and extending into the inner cavity of the cylinder 150, and an air pressure sensor 190 installed on one side of the cylinder 150 and extending into the cylinder 150.

[0027] The housing 110 is used to accommodate dry ice particles to be ejected. The first cover plate 120 is connected by threads, which is convenient for installation and disassembly, increasing the convenience of use. At the same time, it is used to close the housing 110, and both are made of heat-insulating materials to prevent the dry ice particles from vaporizing before ejection.

[0028] The ejection pipe 130 is used to eject dry ice particles. One end of the connecting pipe 140 is connected to the ejection pipe 130, and the other end is connected to a spray gun, which is convenient for feeding the dry ice particles into the spray gun.

[0029] The cylinder body 150 is fixed to one side of the housing 110 by a bracket, used to store a part of dry ice particles, and used to provide the high-pressure air flow required during ejection. The second cover plate 160 is used to close the cylinder body 150, and the second cover plate 160 is also connected by threads, which is convenient for installation and disassembly. The hose 170 connects the second cover plate 160 and the ejection pipe 130, which is convenient for feeding the high-pressure gas in the cylinder body 150 into the ejection pipe 130, so that it carries the dry ice particles and ejects them through the ejection pipe 130.

[0030] The electric heating pipe 180 is used to heat the dry ice particles in the cylinder body 150. Due to the characteristics of dry ice, it will expand rapidly after vaporization after heating, forming high-pressure gas, which can be used as the power during dry ice ejection. The air pressure sensor 190 is used to detect the air pressure in the cylinder body 150 in real time. Cooperating with the electric heating pipe 180, it can ensure the stability of the air pressure in the cylinder body 150, that is, ensure the stability during dry ice particle ejection.

[0031] The adjusting mechanism 200 is used to adjust the ejection speed of dry ice particles, including a sleeve 210 rotatably installed at the end of the ejection pipe 130, a toothed ring 220 fixedly sleeved on the outer side of the sleeve 210, a driving member 230 installed on the ejection pipe 130, a fixed baffle 240 fixed on the inner wall of the ejection pipe 130, and an adjusting member 250 fixed on the inner wall of the sleeve 210.

[0032] The sleeve 210 is used to install the adjusting member 250 and drive the connecting member to rotate. One end of the hose 170 is connected to the second cover plate 160, and the other end is connected to the sleeve 210, which is convenient for feeding the high-pressure air flow into the ejection pipe 130. An annular protrusion 131 is provided on the outer side of the ejection pipe 130, and an annular groove 211 is opened on the inner wall of the sleeve 210. The annular protrusion 131 is fitted in the annular groove 211 to ensure the stability of the sleeve 210 during rotation.

[0033] The driving member 230 is used to drive the sleeve 210 to rotate, and includes a motor 231 fixed on the outer surface of the injection pipe 130 and a gear 232 installed on the shaft of the motor 231. The gear 232 is meshed with the gear ring 220. When the motor 231 rotates, the gear 232 is driven to rotate. The rotation of the gear 232 drives the gear ring 220 to rotate. The rotation of the gear ring 220 drives the sleeve 210 to rotate, that is, drives the adjusting member 250 to rotate.

[0034] The regulating member 250 is used to adjust the flow rate of the high-pressure airflow entering the injection pipe 130, and includes a support rod 251 fixed on the inner wall of the sleeve 210 in an annular array, a rotating shaft 252 fixed on the end of the support rod 251, and a movable baffle 253 fixedly sleeved on the rotating shaft 252. The support rod 251 is used to install the rotating shaft 252, so that the sleeve 210 rotates to drive the rotating shaft 252 to rotate. The rotating shaft 252 is used to install the movable baffle 253 and drive the movable baffle 253 to rotate. The movable baffle 253 is tightly attached to the fixed baffle 240, and three through holes are opened on the surfaces of both in an annular array. When the intersection area of the through holes on the two is larger, more high-pressure airflow passes through the movable baffle 253 and the fixed baffle 240, that is, the faster the injection speed of the dry ice is, and when the intersection area of the through holes on the two is smaller, less high-pressure airflow passes through the movable baffle 253 and the fixed baffle 240, that is, the slower the injection speed of the dry ice is, thereby realizing the control of the dry ice injection speed.

[0035] The working principle and use process of the utility model are as follows: when in use, the first cover plate 120 and the second cover plate 160 are opened, and the dry ice particles are placed in the shell 110 and the cylinder 150 respectively, and the first cover plate 120 and the second cover plate 160 are tightened to start spraying dry ice. When spraying, the electric heating tube 180 is started to heat the dry ice in the cylinder 150. After being heated, the dry ice in the cylinder 150 is vaporized and expanded to form high-pressure gas. The high-pressure gas enters the spray pipe 130 through the hose 170. At the same time, the dry ice particles in the inner cavity of the shell 110 fall into the spray pipe 130. At this time, the high-pressure airflow envelops the dry ice. The particles are sprayed out through the spray pipe 130. In addition, when the dry ice spraying speed needs to be adjusted, the motor 231 is started, the motor 231 is started to drive the gear 232 to rotate, the gear 232 rotates to drive the gear ring 220 to rotate, the gear ring 220 rotates to drive the sleeve 210 to rotate, the sleeve 210 rotates through the support rod 251 to drive the rotating shaft 252 to rotate, that is, the movable baffle 253 is driven to rotate, the movable baffle 253 rotates to adjust the intersection area with the through hole on the fixed baffle 240, the larger the overlap surface of the through holes on the two, the greater the flow rate of the high-pressure airflow entering the spray pipe 130, and the faster the dry ice spraying speed, and vice versa, the slower the spraying speed.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pneumatic dry ice spraying device, comprising: The main body mechanism (100) and the adjustment mechanism (200), characterized in that the main body mechanism (100) includes a housing (110), a first cover plate (120) installed at the top of the housing (110) by threaded connection, a spray pipe (130) provided at the bottom end of the housing (110) and communicating with the inner cavity of the housing (110), a connecting pipe (140) installed at one end of the spray pipe (130), a cylinder (150) fixed to one side of the housing (110) by a bracket, a second cover plate (160) installed at the top of the cylinder (150) by threaded connection, a hose (170) connecting the second cover plate (160) and the end of the spray pipe (130), an electric heating pipe (180) installed at the bottom end of the cylinder (150) and extending into the inner cavity of the cylinder (150), and a pressure sensor (190) installed on one side of the cylinder (150) and extending into the cylinder (150); The adjustment mechanism (200) includes a sleeve (210) rotatably installed at the end of the spray pipe (130), a toothed ring (220) fixedly sleeved on the outer side surface of the sleeve (210), a driving member (230) installed on the spray pipe (130), a fixed baffle (240) fixed on the inner wall of the spray pipe (130), and an adjusting member (250) fixed on the inner wall of the sleeve (210).

2. The pneumatic dry ice spraying device according to claim 1, characterized in that, The driving member (230) includes a motor (231) fixed on the outer side surface of the spray pipe (130) and a gear (232) installed on the shaft of the motor (231), and the gear (232) meshes with the toothed ring (220).

3. The pneumatic dry ice spraying device according to claim 1, characterized in that, An annular protrusion (131) is provided on the outer side surface of the spray pipe (130), and an annular groove (211) is formed on the inner wall of the sleeve (210), and the annular protrusion (131) is fitted in the annular groove (211).

4. The pneumatic dry ice spraying device according to claim 1, characterized in that, One end of the hose (170) communicates with the second cover plate (160), and the other end communicates with the sleeve (210).

5. The pneumatic dry ice spraying device according to claim 1, characterized in that, The adjusting member (250) includes support rods (251) fixedly arranged in an annular array on the inner wall of the sleeve (210), a rotating shaft (252) fixed at the end of the support rod (251), and a moving baffle (253) fixedly sleeved on the rotating shaft (252).

6. The pneumatic dry ice spraying device according to claim 5, characterized in that, The moving baffle (253) is in close contact with the fixed baffle (240), and three through holes are formed in an annular array on the surfaces of both of them.

Images