Sand blasting and dust removing device for civil air defense door

Abstract

The utility model relates to a sand blasting and dust removing device for a civil air defense door, which belongs to the technical field of sand blasting and dust removing devices for civil air defense doors and comprises a bottom plate, a sand storage bin fixed on the top surface of the bottom plate, a sand blasting bin fixed on the top surface of the bottom plate, a plurality of support rods fixed between the front inner wall and the rear inner wall of the sand blasting bin, and a recovery mechanism arranged on the bottom plate, the recycling mechanism comprises a collecting bin connected between the inner walls of the sand blasting bin in a sliding mode, a collecting pipe fixed to the bottom face of the collecting bin, a connecting pipe fixed to the bottom face of the collecting pipe, and a sand conveying pipe fixed to the bottom face of the connecting pipe, wherein one end of the sand conveying pipe is fixed to the sand storage bin. The motor is fixed on the left side of the sand storage bin; and the first spiral shaft is fixed at the right end of an output shaft of the motor. According to the sand blasting and dust removing device for the civil defense door, the first spiral shaft arranged on the recycling mechanism plays a role in material guiding and conveying, sand grains are prevented from being blocked in the sand conveying pipe, and meanwhile, the recycling bin can vibrate up and down, so that the sand grains can be better gathered and conveyed.

Description

Technical Field

[0001] The present application relates to the technical field of sandblasting and dust removal devices for civil air defense doors, and specifically to a sandblasting and dust removal device for civil air defense doors. Background Art

[0002] Sandblasting machine belongs to the category of air conveying machinery. It uses compressed air in a pipeline to transport powdered granular materials from one place to another. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles flush the surface of the object, thereby improving the surface quality of the object. In the production process of civil air defense doors, sandblasting and rust removal is an important link.

[0003] For example, a Chinese patent (publication number: CN216299010U) discloses a sandblasting machine with a sand collection effect, including a sandblasting machine body and a moving part fixedly connected to the bottom surface of the sandblasting machine body for transmitting the sandblasting machine body; a sealing part is vertically slidably connected to the sandblasting machine body, a sandblasting part is vertically slidably connected inside the sealing part, a transmission part is fixedly connected inside the sandblasting machine body, and a reciprocating part with one end connected to the sandblasting machine body is fixedly connected to the top surface of the sandblasting machine body; an inclined plate is obliquely fixedly connected inside the sealing part, and a storage part connected to the sealing part is fixedly connected to the sandblasting machine body, which can recycle sand, increase the utilization rate of sand and reduce the waste of sand resources by directly collecting sand.

[0004] However, the above search patent still has some shortcomings. When it is in use, the inclined plate is set to allow the sand to enter the sand inlet pipe, and then enter the storage part through the sand inlet pipe for storage. In actual use, the inclined plate and the sand inlet pipe lack vibration, which makes the sand easily remain in the sand inlet pipe and cannot reach the storage part for recycling. It is inconvenient to use. Therefore, a sandblasting and dust removal device for civil air defense doors is proposed to solve the above problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a sandblasting and dust removal device for civil air defense doors, which has the advantages of easy recovery of sand particles, and solves the problem that the device disclosed in the above-mentioned search patent is easily clogged inside the sand inlet pipe when recovering sand particles.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A sandblasting and dust removal device for civil air defense doors, comprising a bottom plate, a sand storage bin fixed on the top surface of the bottom plate, a sandblasting bin fixed on the top surface of the bottom plate, a plurality of support rods fixed between the front and rear inner walls of the sandblasting bin, a recovery mechanism arranged on the bottom plate, and a dust suction mechanism arranged on the sandblasting bin;

[0007] The recovery mechanism includes a collecting bin slidably connected between the inner walls of the sandblasting bin, a collecting pipe fixed to the bottom of the collecting bin, a connecting pipe fixed to the bottom of the collecting pipe, a sand feeding pipe fixed to the bottom of the connecting pipe and one end of which is fixed to the sand storage bin, a motor fixed to the left side of the sand storage bin, and a first screw shaft fixed to the right end of the motor output shaft.

[0008] By adopting the above technical solution, when in use, the civil air defense door that needs sandblasting and rust removal is placed on multiple support rods for support to facilitate sandblasting. The sand particles sprayed during sandblasting will fall into the collection bin from between the support rods and are further collected in the sand delivery pipe. The first spiral shaft arranged by the recovery mechanism plays a role of guiding and conveying the material to avoid sand particles being blocked in the sand delivery pipe. At the same time, the recovery mechanism can make the recovery bin vibrate up and down so that the collected sand particles can be better gathered for transportation, which is more practical and easier to promote and use.

[0009] Furthermore, the recovery mechanism also includes a plurality of guide rods fixed to the bottom surface of the collection bin, a spring mounted on the outer peripheral wall of the guide rod, a support plate slidably connected to the outer peripheral wall of the guide rod and fixed to the inner wall of the sandblasting bin on one side, a second screw shaft fixed to the end of the first screw shaft away from the motor, and a fixed block fixed to the inner peripheral wall of the collection tube.

[0010] By adopting the above technical solution, when the motor drives the first screw shaft to rotate, the first screw shaft will also drive the second screw shaft to rotate, and cooperate with the guide rod, support plate and spring to enable the collecting bin to vibrate up and down, so that the sand particles falling into the collecting bin can be better centered in the collecting tube.

[0011] Furthermore, the dust suction mechanism includes a dust suction bin fixed on the top surface of the sandblasting bin, a filter bin fixed on the right side of the sandblasting bin, a dust suction pipe fixed on the top surface of the dust suction bin and connected to the filter bin at one end, a fan fixed on the right side of the filter bin, a filter plate fixed between the inner walls of the filter bin, a baffle fixed on the bottom surface of the filter bin, and a valve fixed on the outer peripheral wall of the dust suction pipe.

[0012] By adopting the above technical solution, when sandblasting is carried out inside the sandblasting chamber, the dust and smoke floating during sandblasting can be sucked into the filter chamber for filtration through the dust suction chamber provided by the dust suction mechanism in conjunction with the fan, so as to prevent the dust from scattering and affecting the surrounding ring. After using it for a period of time, the dust on the filter plate can be blown off by reversing the fan to achieve a cleaning effect, thereby further improving the practicality of the device.

[0013] Furthermore, a sealing door is hinged on the front of the sandblasting chamber, the support rod is a round rod, and a plurality of the support rods are equidistantly distributed on the left and right sides.

[0014] By adopting the above technical solution, it is convenient to support the civil air defense door that needs sandblasting and rust removal through multiple support rods, and at the same time, the sprayed sand particles can fall from between the support rods into the collection bin for collection.

[0015] Furthermore, the collecting bin is a conical bin, the connecting pipe is a rubber hose, and the end of the first spiral shaft away from the motor extends into the sand delivery pipe.

[0016] By adopting the above technical solution, the rubber hose is used to ensure that the sand delivery pipe is not affected when the collection bin oscillates up and down.

[0017] Furthermore, the spring is arranged on the top of the support plate, and the top surface of the support plate is provided with a guide hole for the guide rod to penetrate and be slidably connected thereto.

[0018] By adopting the above technical solution, it is convenient to cooperate with the support plate to compress the spring when the collecting bin moves downward, so that the collecting bin can be pushed upward and reset by the spring to generate vibration.

[0019] Furthermore, the dust collection bin is conical, the bottom surface of the filter bin is open, and the baffle is fixed to the filter bin by bolts to form a detachable structure.

[0020] The above technical solution makes it easy to disassemble the baffle plate and clean the dust inside the filter bin.

[0021] Furthermore, the filter plate is arranged between the dust suction pipe and the fan, and a ventilation hole is opened on the right side of the filter bin.

[0022] By adopting the above technical solution, the fan can blow or exhaust air into the filter bin through the ventilation holes.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. The sandblasting and dust removal device for civil air defense doors, when in use, will place the civil air defense doors that need sandblasting and rust removal on multiple support rods for support, thereby facilitating sandblasting. The sand particles sprayed out during sandblasting will fall into the collection bin from between the support rods, and will be further collected in the sand delivery pipe. The first spiral shaft provided by the recovery mechanism plays a role of guiding and conveying the material, thereby preventing the sand particles from being blocked in the sand delivery pipe. At the same time, the recovery mechanism can make the recovery bin vibrate up and down, so that the collected sand particles can be better gathered for transportation, which is more practical and easier to promote and use.

[0025] 2. The sandblasting dust removal device for civil air defense doors, when sandblasting is carried out inside the sandblasting chamber, the dust smoke floating during sandblasting can be sucked into the filter chamber for filtration through the dust suction chamber provided by the dust suction mechanism in cooperation with the fan, so as to prevent the dust from scattering and affecting the surrounding ring. After using for a period of time, the dust on the filter plate can be blown off by reversing the fan to play a cleaning role, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view schematic diagram of the present application;

[0027] Figure 2 For this application Figure 1 The enlarged schematic diagram of point A in the middle;

[0028] Figure 3 This is a three-dimensional cross-sectional schematic diagram of the filter bin of this application.

[0029] In the figure: 1, bottom plate; 2, sand storage bin; 3, sand blasting bin; 4, support rod; 501, collection bin; 502, guide rod; 503, spring; 504, support plate; 505, collection pipe; 506, connecting pipe; 507, sand delivery pipe; 508, motor; 509, first spiral shaft; 510, second spiral shaft; 511, fixed block; 601, dust suction bin; 602, filter bin; 603, dust suction pipe; 604, fan; 605, filter plate; 606, baffle; 607, valve. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0031] See also Figure 1 In this embodiment, a sandblasting and dust removal device for a civil air defense door comprises a base plate 1, a sand storage bin 2 fixed on the top surface of the base plate 1, a sandblasting bin 3 fixed on the top surface of the base plate 1, a plurality of support rods 4 fixed between the front and rear inner walls of the sandblasting bin 3, a recovery mechanism arranged on the base plate 1, and a dust suction mechanism arranged on the sandblasting bin 3. A sealing door is hinged on the front of the sandblasting bin 3. The support rod 4 is a circular rod. The plurality of support rods 4 are equidistantly distributed on the left and right. When in use, the civil air defense door that needs sandblasting and rust removal is placed on the plurality of support rods 4 for support so as to facilitate sandblasting. The sand particles sprayed during sandblasting will be recovered by the recovery mechanism and transported to the sand storage bin 2. During sandblasting, the dust and smoke that float up will be filtered through the dust suction mechanism to prevent dust from scattering and affecting the surrounding ring.

[0032] It should be noted that a robotic arm is installed on the inner top wall of the sandblasting chamber 3, a sandblasting nozzle is installed on the end of the robotic arm, and a sand conveying structure for conveying the sand inside the sand storage chamber 2 to the sandblasting nozzle is installed on the bottom plate 1. The robotic arm, sandblasting nozzle, and sand conveying structure all belong to the existing public technology and will not be described in detail in this article. In addition, the control method of the present application is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present application is mainly used to protect mechanical devices, so the present application will not explain the control method and circuit connection in detail.

[0033] See also Figure 1 to Figure 2 The recovery mechanism includes a collecting bin 501 slidably connected to the inner wall of the sand blasting bin 3, a collecting pipe 505 fixed to the bottom of the collecting bin 501, a connecting pipe 506 fixed to the bottom of the collecting pipe 505, a sand delivery pipe 507 fixed to the bottom of the connecting pipe 506 and one end of which is fixed to the sand storage bin 2, a motor 508 fixed to the left side of the sand storage bin 2, and a first spiral shaft 509 fixed to the right end of the output shaft of the motor 508. The collecting bin 501 is a conical bin, the connecting pipe 506 is a rubber hose, and the first spiral shaft 50 9 extends from one end of the motor 508 to the sand delivery pipe 507. When in use, the ejected sand particles fall into the collecting bin 501 through the gaps between the plurality of support rods 4, and further fall into the sand delivery pipe 507 through the collecting pipe 505 and the connecting pipe 506. The motor 508 is started, and the motor 508 drives the first screw shaft 509 to rotate. The first screw shaft 509 transports the sand particles inside the sand delivery pipe 507 to the left to the inside of the sand storage bin 2 for recovery, which can effectively prevent the sand particles from clogging the sand delivery pipe 507 and causing inconvenience.

[0034] It should be understood that the sand delivery tube 507 is provided with multiple bends, and the first spiral shaft 509 can be connected at the bends inside thereof via a universal joint, which belongs to the existing public technology and will not be described in detail in this article.

[0035] See also Figure 1 to Figure 2In this embodiment, the recovery mechanism also includes a plurality of guide rods 502 fixed to the bottom surface of the collection bin 501, springs 503 sleeved on the outer peripheral wall of the guide rods 502, a support plate 504 slidably connected to the outer peripheral wall of the guide rods 502 and fixed to the inner wall of the sandblasting bin 3 on one side, a second spiral shaft 510 fixed to the end of the first spiral shaft 509 away from the motor 508, and a fixed block 511 fixed to the inner peripheral wall of the collection tube 505. The spring 503 is arranged on the top of the support plate 504, and a guide hole is provided on the top surface of the support plate 504 for the guide rods 502 to pass through and be slidably connected thereto. When the motor 508 drives the first spiral shaft 509 to rotate, the first spiral shaft 509 will also drive the second spiral shaft 510 to rotate. When the second spiral shaft 510 rotates, it will contact the fixed block 511, so that the first spiral shaft 509 can be rotated. The second spiral shaft 510 drives the fixed block 511 to move downward through its spiral blades, and the fixed block 511 drives the collecting tube 505 and the collecting bin 501 to move downward. The collecting bin 501 cooperates with the guide rod 502 and the support plate 504 to compress the spring 503. It should be noted that the spiral blade on the outer peripheral wall of the second spiral shaft 510 is only half a circle, that is, the spiral blade starts from the right side of the second spiral shaft 510 near the top surface, goes around the back of the second spiral shaft 510 and ends at the left side of the second spiral shaft 510 near the bottom surface. When the fixed block 511 moves to the bottom end of the spiral blade, the downward thrust of the spiral blade is lost. At this time, the spring 503 pushes the collecting bin 501 upward. This reciprocating motion allows the collecting bin 501 to vibrate up and down, thereby allowing the sand particles that fall into the collecting bin 501 to be better centered and gathered in the collecting tube 505.

[0036] See also Figures 1 to 3 In this embodiment, the dust collection mechanism also includes a dust collection bin 601 fixed on the top surface of the sandblasting bin 3, a filter bin 602 fixed on the right side of the sandblasting bin 3, a dust collection pipe 603 fixed on the top surface of the dust collection bin 601 and one end of which is connected to the filter bin 602, a fan 604 fixed on the right side of the filter bin 602, a filter plate 605 fixed between the inner walls of the filter bin 602, a baffle 606 fixed on the bottom surface of the filter bin 602 and a valve 607 fixed on the outer peripheral wall of the dust collection pipe 603. When sandblasting, Start the fan 604, which exhausts air outward to create a negative pressure inside the filter chamber 602, thereby allowing the filter chamber 602 to suck dust inside the sandblasting chamber 3 through the dust suction pipe 603 and the dust suction chamber 601. After the dust enters the filter chamber 602, it will be blocked by the filter plate 605. When the dust needs to be processed, close the valve 607 and blow back the fan 604 so that the fan 604 can blow the dust off the filter plate 605. The baffle 606 can be further removed to process the dust inside the filter chamber 602.

[0037] In this embodiment, the dust collection bin 601 is conical, the bottom surface of the filter bin 602 is open, and the baffle 606 is fixed to the filter bin 602 by bolts to form a detachable structure. This structure facilitates the removal of the baffle 606 and the cleaning of the dust inside the filter bin 602.

[0038] The filter plate 605 is disposed between the dust suction pipe 603 and the fan 604 , and a ventilation hole is provided on the right side of the filter compartment 602 .

[0039] The working principle of the above embodiment is:

[0040] (1) When in use, the ejected sand particles fall into the collecting bin 501 through the gaps between the plurality of support rods 4, and further fall into the sand delivery pipe 507 through the collecting pipe 505 and the connecting pipe 506. The motor 508 is started, and the motor 508 drives the first screw shaft 509 to rotate. The first screw shaft 509 delivers the sand particles inside the sand delivery pipe 507 to the left to the inside of the sand storage bin 2 for recovery, which can effectively prevent the sand particles from clogging the sand delivery pipe 507 and causing inconvenience;

[0041] (2) When the motor 508 drives the first spiral shaft 509 to rotate, the first spiral shaft 509 also drives the second spiral shaft 510 to rotate. When the second spiral shaft 510 rotates, it contacts the fixed block 511, so that the second spiral shaft 510 drives the fixed block 511 to move downward through its spiral blades. The fixed block 511 drives the collecting tube 505 and the collecting bin 501 to move downward. The collecting bin 501 cooperates with the guide rod 502 and the support plate 504 to compress the spring 503. Since the spiral blade on the second spiral shaft 510 does not have a complete circle, when the fixed block 511 moves to the bottom of the spiral blade, the downward thrust of the spiral blade is lost. At this time, the spring 503 pushes the collecting bin 501 upward. This reciprocating motion enables the collecting bin 501 to vibrate up and down, thereby making the sand particles that fall into the collecting bin 501 better gathered in the collecting tube 505;

[0042] (3) When sandblasting is being performed, the fan 604 is started, and the fan 604 exhausts air outward, causing a negative pressure inside the filter chamber 602, thereby causing the filter chamber 602 to suck dust inside the sandblasting chamber 3 through the dust suction pipe 603 and the dust suction chamber 601. After the dust enters the filter chamber 602, it will be blocked by the filter plate 605. When the dust needs to be processed, the valve 607 is closed and the fan 604 is blown back so that the fan 604 blows the dust off the filter plate 605. The baffle 606 is further removed to process the dust inside the filter chamber 602.

Claims

1. A sandblasting and dust removal device for civil air defense doors, characterized in that: It comprises a bottom plate (1), a sand storage bin (2) fixed to the top surface of the bottom plate (1), a sand blasting bin (3) fixed to the top surface of the bottom plate (1), a plurality of support rods (4) fixed between the front and rear inner walls of the sand blasting bin (3), a recovery mechanism arranged on the bottom plate (1), and a dust suction mechanism arranged on the sand blasting bin (3); The recovery mechanism comprises a collecting bin (501) slidably connected between the inner walls of the sandblasting bin (3), a collecting pipe (505) fixed to the bottom surface of the collecting bin (501), a connecting pipe (506) fixed to the bottom surface of the collecting pipe (505), a sand delivery pipe (507) fixed to the bottom surface of the connecting pipe (506) and one end of which is fixed to the sand storage bin (2), a motor (508) fixed to the left side of the sand storage bin (2), and a first screw shaft (509) fixed to the right end of the output shaft of the motor (508).

2. The sandblasting and dust removal device for civil air defense doors according to claim 1 is characterized in that: The recovery mechanism further comprises a plurality of guide rods (502) fixed to the bottom surface of the collection bin (501), a spring (503) sleeved on the outer peripheral wall of the guide rod (502), a support plate (504) slidably connected to the outer peripheral wall of the guide rod (502) and fixed on one side to the inner wall of the sandblasting bin (3), a second screw shaft (510) fixed to the end of the first screw shaft (509) away from the motor (508), and a fixing block (511) fixed to the inner peripheral wall of the collection tube (505).

3. The sandblasting and dust removal device for civil air defense doors according to claim 1 is characterized in that: The dust suction mechanism further comprises a dust suction chamber (601) fixed on the top surface of the sandblasting chamber (3), a filter chamber (602) fixed on the right side of the sandblasting chamber (3), a dust suction pipe (603) fixed on the top surface of the dust suction chamber (601) and one end of which is connected to the filter chamber (602), a fan (604) fixed on the right side of the filter chamber (602), a filter plate (605) fixed between the inner walls of the filter chamber (602), a baffle (606) fixed on the bottom surface of the filter chamber (602), and a valve (607) fixed on the outer peripheral wall of the dust suction pipe (603).

4. The sandblasting and dust removal device for civil air defense doors according to claim 1 is characterized in that: The front of the sandblasting chamber (3) is hinged with a sealing door, the support rod (4) is a round rod, and a plurality of the support rods (4) are distributed equidistantly on the left and right.

5. The sandblasting and dust removal device for civil air defense doors according to claim 2 is characterized in that: The collecting bin (501) is a conical bin, the connecting pipe (506) is a rubber hose, and one end of the first spiral shaft (509) facing away from the motor (508) extends into the sand delivery pipe (507).

6. The sandblasting and dust removal device for civil air defense doors according to claim 2 is characterized in that: The spring (503) is arranged on the top of the support plate (504), and the top surface of the support plate (504) is provided with a guide hole for the guide rod (502) to pass through and be slidably connected thereto.

7. The sandblasting and dust removal device for civil air defense doors according to claim 3 is characterized in that: The dust collecting bin (601) is conical, the bottom surface of the filter bin (602) is open, and the baffle (606) is fixed to the filter bin (602) by bolts to form a detachable structure.

8. The sandblasting and dust removal device for civil air defense doors according to claim 3 is characterized in that: The filter plate (605) is arranged between the dust suction pipe (603) and the fan (604), and a ventilation hole is provided on the right side of the filter bin (602).

Images