Sand blasting machine for stainless steel surface treatment

Abstract

The utility model relates to the technical field of stainless steel processing, and discloses a sand blasting machine for stainless steel surface treatment, which comprises a sand blasting gun body, a gun head, a pulling sheet and a gun stock, the gun stock is provided with a limiting device, the pulling sheet is connected with a fixing sheet, the outer side of the gun head is sleeved with an elastic rope, and the other end of the elastic rope is connected with a safety helmet. The inner wall of the helmet is in threaded connection with the outside of the gun head; the safety device at the trigger can prevent the trigger from being accidentally touched, and the safety device at the gun head can prevent sand grains from being sprayed under specific conditions, so that the risk of accidental injury is greatly reduced due to double safety. The safety device is installed, so that an operator can be effectively protected from being injured by accidentally-sprayed sand grains, and the injury risk of sensitive parts such as eyes, the face and the hands is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel processing, and particularly relates to a sandblasting machine for stainless steel surface treatment. Background Art

[0002] A sandblasting machine for stainless steel surface treatment is a device that uses compressed air as power to spray abrasive at high speed onto the stainless steel surface to achieve the purposes of cleaning, rust removal, decontamination, polishing, and increasing surface roughness. Its structure mainly includes a spray gun and a pressure device. The spray gun is the core component of the sandblasting machine, and the abrasive is ejected through compressed air. The pressure device provides the required compressed air for the sandblasting machine. The operator holds the handle of the sandblasting gun and aims the sandblasting gun at the stainless steel surface to be treated. Gently press the trigger, and at this time, the compressed air will drive the mechanism inside the sandblasting machine to eject the abrasive at high speed through the nozzle of the spray gun.

[0003] However, the existing technical solutions have the following problems:

[0004] As a tool for stainless steel surface treatment, the sandblasting gun cleans or changes the surface of materials by spraying high-speed sand grains. There is no safety insurance device at the trigger of the existing sandblasting gun, and there is a risk of accidental injury, especially when used by an inexperienced operator or in an inappropriate environment. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a sandblasting machine for stainless steel surface treatment to at least solve one of the problems raised in the background art, such as: improving safety, preventing the ejection of sand grains under specific conditions, protecting the operator from accidentally ejected sand grains, and reducing the risk of injury to sensitive parts such as the eyes, face, and hands.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sandblasting machine for stainless steel surface treatment includes a sandblasting gun body, a gun head at one end of the sandblasting gun body, a trigger plate in the middle of the sandblasting gun body, and a gunstock at the tail of the sandblasting gun body. A limiting device is installed at one end of the gunstock. A fixed plate is fixedly connected to the inner side of the trigger plate. The limiting device and the fixed plate are in fit connection. An elastic cord is sleeved outside the gun head, and the other end of the elastic cord is connected to a safety helmet. The inner wall of the safety helmet is threadedly connected to the outside of the gun head.

[0007] Further: The limiting device includes a support bar, a return spring, and a limiting rod. One end of the support bar is rotatably connected to one side of the gunstock. The end of the support bar is sleeved with a return spring. One end of the return spring is fixedly connected to the end of the support bar, and the other end is fixedly connected to the gunstock. The other end of the support bar is slidably connected to the limiting rod, and the outside of the limiting rod is in fit connection with the outside of the fixed plate.

[0008] Furthermore: a sliding rod channel is opened on the surface of the support bar, the outer side of the limit rod is slidingly connected to the inner wall of the sliding rod channel, the inner wall of the sliding rod channel is fixedly connected to an extrusion spring, and the other end of the extrusion spring is fixedly connected to the outer side of the limit rod.

[0009] Furthermore: the length of the limiting rod is greater than the width of the fixing plate.

[0010] Furthermore, anti-slip sleeves are provided on the outer sides of both ends of the limiting rod.

[0011] Furthermore: the inner wall of the safety helmet and the outer side of the gun head can be separated.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model features a safety device on the trigger to prevent accidental triggering, while a safety device on the gun head prevents sand from being ejected under certain conditions. This dual safety significantly reduces the risk of accidental injury. Installing the safety device effectively protects the operator from accidental sand ejection, reducing the risk of injury to sensitive areas such as the eyes, face, and hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the sandblasting gun body of the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting device of the utility model.

[0018] In the figure: 1. Sandblasting gun body; 2. Gun head; 3. Trigger; 301. Fixing plate; 4. Stock; 5. Limiting device; 501. Support bar; 502. Return spring; 503. Slide rod channel; 504. Extrusion spring; 505. Limiting rod; 6. Safety helmet; 7. Elastic rope; 8. Anti-slip cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figures 1 to 4As shown, a sandblasting machine for stainless steel surface treatment includes a sandblasting gun body 1, a gun head 2 located at one end of the sandblasting gun body 1, a trigger 3 in the middle of the sandblasting gun body 1 and a buttstock 4 at the rear of the sandblasting gun body 1, a limiting device 5 is installed at one end of the buttstock 4, a fixing plate 301 is fixedly connected to the inner side of the trigger 3, and the limiting device 5 and the fixing plate 301 are fitly connected, an elastic rope 7 is provided on the outer side of the gun head 2, and the other end of the elastic rope 7 is connected to a safety helmet 6, and the inner wall of the safety helmet 6 is threadedly connected to the outer side of the gun head 2.

[0021] like Figures 1 to 4 As shown, when a sandblasting machine for stainless steel surface treatment in the present invention is in use, the gun head 2 is located at one end of the sandblasting gun body 1, which is the part where sand particles are ejected. The trigger 3 is located in the middle of the sandblasting gun body 1 and is the component that controls the opening and closing of the sandblasting gun. The buttstock 4 is located at the rear of the sandblasting gun body 1, providing a gripping point for the operator, increasing the stability and comfort of the operation. The limiting device 5 is installed at one end of the buttstock 4 and is tightly connected to the fixing plate 301. It helps to limit the range of movement of the trigger 3, prevent it from excessive movement or accidental triggering, and thus improve the safety of operation. The other end of the elastic rope 7 sleeved on the outside of the gun head 2 is connected to a safety cap 6. When the sandblasting gun is not in use, the safety cap 6 can be pulled to the gun head 2 by stretching the elastic rope 7 to cover the gun head 2 to prevent sand particles from being accidentally ejected or dust from entering the inside of the gun head 2. At the same time, the threaded connection between the inner wall of the safety cap 6 and the outside of the gun head 2 ensures the firmness of the connection, further improving safety. A fixing plate 301 is fixedly connected to the inner side of the pull piece 3 and is used in conjunction with the limiting device 5 to make the operation of the pull piece 3 more stable and reliable.

[0022] like Figure 3 As shown, the limiting device 5 includes a support bar 501, a return spring 502 and a limit rod 505. One end of the support bar 501 is rotatably connected to one side of the buttstock 4. The end of the support bar 501 is sleeved with a return spring 502. One end of the return spring 502 is fixedly connected to the end of the support bar 501, and the other end is fixedly connected to the buttstock 4. The other end of the support bar 501 is slidably connected to the limit rod 505, and the outer side of the limit rod 505 is fit-fitted to the outer side of the fixing plate 301.

[0023] Specifically, this arrangement establishes support bar 501 as the primary support structure for the limiting device 5. One end of the support bar 501 is fixed to one side of the buttstock 4 via a pivoting connection, allowing the support bar 501 to rotate flexibly within a certain range. The return spring 502, when no external force is applied, uses its elastic force to return the support bar 501 to its initial position, thereby ensuring the stability and reliability of the limiting device 5. The limiting rod 505 primarily limits the range of movement of the trigger 3. When the operator activates the sandblaster, the trigger 3 is pushed. As the trigger 3 moves, the fixing plate 301 also moves accordingly, and the return spring 502 drives the limiting rod 505 against the fixing plate 301.

[0024] likeFigure 4 As shown, a sliding rod channel 503 is opened on the surface of the support bar 501, the outer side of the limiting rod 505 is slidingly connected to the inner wall of the sliding rod channel 503, and an extrusion spring 504 is fixedly connected to the inner wall of the sliding rod channel 503, and the other end of the extrusion spring 504 is fixedly connected to the outer side of the limiting rod 505.

[0025] Specifically, this arrangement creates a sliding rod channel 503, a channel formed on the surface of the support bar 501, that accommodates and guides the sliding movement of the limiting rod 505. This ensures the stability and directionality of the limiting rod 505 during movement. The primary function of the compression spring 504 is to provide a spring force, which forces the limiting rod 505 against the surface of the fixing plate 301 under the elastic force of the return spring 502. To release the pull plate 3, the limiting rod 505 can be pulled downward, separating the limiting device 5 from the fixing plate 301.

[0026] like Figures 2 to 4 As shown, the length of the limiting rod 505 is greater than the width of the fixing plate 301 .

[0027] Specifically, because the length of the limiting rod 505 is greater than the width of the fixing plate 301, the operator can more easily find and grasp the limiting rod 505 to perform the pulling operation. The longer limiting rod 505 provides a larger operating area, allowing the operator to more accurately control the force and direction when pulling. This helps ensure that the limiting rod 505 can move smoothly and steadily to the desired position, thereby improving the accuracy of the operation.

[0028] like Figure 4 As shown, anti-slip sleeves 8 are provided on the outer sides of both ends of the limiting rod 505.

[0029] Specifically, the main function of setting the anti-slip cover 8 is to increase the friction between the limiting rod 505 and the human hand to prevent sliding or accidental falling off during use.

[0030] like Figure 1 As shown, the inner wall of the safety cap 6 and the outer side of the gun head 2 can be separated.

[0031] Specifically, by setting the inner wall of the safety helmet 6 and the outer side of the gun head 2 to be separable, the operator can completely expose the gun head 2 to the outside when using the sandblasting gun, avoiding high-pressure water flow impacting the safety helmet 6 and causing wear on the gun head 2.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sandblasting gun for stainless steel surface treatment, comprising a sandblasting gun body (1), a gun head (2) located at one end of the sandblasting gun body (1), a plate (3) in the middle of the sandblasting gun body (1), and a gunstock (4) at the tail of the sandblasting gun body (1), characterized in that: One end of the butt stock (4) is provided with a limiting device (5). A fixing piece (301) is fixedly connected to the inner side of the trigger piece (3). The limiting device (5) is in fitting connection with the fixing piece (301). An elastic cord (7) is sleeved on the outer side of the gun head (2). The other end of the elastic cord (7) is connected to a safety helmet (6). The inner wall of the safety helmet (6) is in threaded connection with the outer side of the gun head (2).

2. The sandblasting machine for stainless steel surface treatment according to claim 1, characterized in that: The limiting device (5) includes a support bar (501), a return spring (502) and a limiting rod (505). One end of the support bar (501) is rotatably connected to one side of the butt stock (4). The end of the support bar (501) is sleeved with the return spring (502). One end of the return spring (502) is fixedly connected to the end of the support bar (501), and the other end is fixedly connected to the butt stock (4). The other end of the support bar (501) is slidably connected to the limiting rod (505). The outer side of the limiting rod (505) is in fitting connection with the outer side of the fixing piece (301).

3. The sandblasting machine for stainless steel surface treatment according to claim 2, characterized in that: A sliding rod channel (503) is formed on the surface of the support bar (501). The outer side of the limiting rod (505) is slidably connected to the inner wall of the sliding rod channel (503). An extrusion spring (504) is fixedly connected to the inner wall of the sliding rod channel (503). The other end of the extrusion spring (504) is fixedly connected to the outer side of the limiting rod (505).

4. A sandblasting machine for stainless steel surface treatment according to claim 2 or 3, characterized in that: The length of the limiting rod (505) is greater than the width of the fixing piece (301).

5. The sandblasting machine for stainless steel surface treatment according to claim 2 or 3, characterized in that: Anti-slip sleeves (8) are arranged on the outer sides of both ends of the limiting rod (505).

6. The sandblasting machine for stainless steel surface treatment according to claim 4, wherein: Anti-slip sleeves (8) are arranged on the outer sides of both ends of the limiting rod (505).

7. The sandblasting machine for stainless steel surface treatment according to claim 1, wherein: The inner wall of the safety helmet (6) and the outer side of the gun head (2) are detachably arranged.

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