A quick maintenance opening of a shot blasting machine
The quick-access maintenance port structure, designed with double-opening side doors and a pull-out component, solves the problem of inconvenient opening of the maintenance door for shot blasting machines, enabling fast and convenient maintenance operations and noise control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIUFANG MASCH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-07
AI Technical Summary
The access door of the shot blasting machine is inconvenient to open, which affects maintenance efficiency and causes a lot of noise.
A quick access port structure was designed, including a first side door and a second side door that open in opposite directions. The door can be opened and closed quickly by a pull-out component, and the sealing gasket and sound insulation cotton are combined to enhance the sealing and sound insulation effect.
It enables quick and convenient access to the maintenance port, reduces noise, and improves maintenance efficiency and environmental comfort.
Smart Images

Figure CN224464474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting machines, specifically a quick inspection port for shot blasting machines. Background Technology
[0002] A shot blasting machine is a casting equipment that uses high-speed shot blasting to clean or strengthen the surface of castings. Shot blasting machines can simultaneously remove sand, cores, and clean castings. In some regions, they are also colloquially called sandblasting machines or blasting machines. The internal housing of a shot blasting machine is prone to damage. Typically, an inspection port with a door is located on the side wall of the machine. This door is inconvenient to open, affecting maintenance efficiency. Furthermore, the collision of the high-speed shot with the workpiece and the shot blasting machine generates significant noise, severely impacting the workshop environment. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a quick inspection port for shot blasting machines. The inspection door of this port can be opened quickly and has a double sound insulation function, effectively solving the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick inspection port for a shot blasting machine, comprising a side wall of the shot blasting machine, wherein a square opening is embedded in the side wall of the shot blasting machine, and a first side door with two openings is provided in the inner opening of the square opening. The outer sides of the first side door are respectively hinged to the side wall of the shot blasting machine by a first hinge. A second side door with two openings is provided in the outer opening of the square opening. The outer sides of the second side door are respectively hinged to the side wall of the shot blasting machine by a second hinge. Rectangular notches are provided at the upper and lower middle positions of the inner ends of the second side door relative to the second hinge. Pulling members that cooperate with the rectangular notches are provided at the upper and lower middle positions of the inner ends of the first side door relative to the first hinge.
[0005] As a preferred technical solution, the pulling member includes a first collar fixed to the first side door, a second collar sleeved on the first collar, the second collar being fixedly connected to the inner end of the open internal threaded sleeve, a pull rod being threaded in the internal threaded sleeve, the pull rod extending out of the outer port of the internal threaded sleeve, and a circular pull ring being fixedly provided at the outer end of the pull rod.
[0006] As a preferred technical solution, a sealing gasket is bonded to the inner surface edge of both the first side door and the second side door.
[0007] As a preferred technical solution, the outer side of the rectangular notch is respectively embedded with an arc-shaped notch that mates with the circular pull ring.
[0008] As a preferred technical solution, the first side door can seal the inner opening of the square opening after it is closed.
[0009] As a preferred technical solution, the inner surfaces of the first side door opposite the hinge are respectively provided with rubber layers, so that the first side door is sealed after docking.
[0010] As a preferred technical solution, the second side door can cover the outer opening of the square opening after it is closed.
[0011] As a preferred technical solution, the inner surfaces of the second side door opposite to the hinge are respectively provided with rubber layers, so that the first side door is sealed after docking.
[0012] As a preferred technical solution, sound insulation cotton is respectively bonded to the inner surfaces of the first side door and the second side door, and the inner side of the sound insulation cotton is respectively embedded with a strip-shaped notch that cooperates with the pull member.
[0013] Compared with the prior art, this utility model provides a quick inspection port for shot blasting machines, which has the following beneficial effects:
[0014] 1. This utility model is hinged to the side wall of the shot blasting machine via a second hinge on the outer side of the second side door. The second side door has a rectangular notch at the upper and lower middle positions of the inner end of the second hinge. The first side door has a pulling member at the upper and lower middle positions of the inner end of the first hinge that cooperates with the rectangular notch. When in use, the first and second side doors can cover the inner and outer openings of the square opening after they are closed, and the first and second side doors can be pulled and fixed by the pulling member.
[0015] 2. This utility model includes a first collar fixed to a first side door via a pulling component. A second collar is sleeved on the first collar, and the second collar is fixedly connected to the inner end of an open-ended internally threaded sleeve. A pull rod is threaded into the internally threaded sleeve, extending out of the outer end of the sleeve, and a circular pull ring is fixedly attached to the outer end of the pull rod. In use, first close the first side door, then close the opposite second side door. Then, pull the pulling component outward laterally and embed it into the rectangular notch. Finally, rotate the circular pull ring clockwise to open the first side door. Tighten the second side door, and close the other pair of side doors in the same way. Soundproofing blocks can be detached and inserted into the rectangular notches on both sides of the pull piece, so that the first and second side doors can work together to provide double sound insulation. When it is necessary to open the access panel, pull out the soundproofing block. First, turn the round pull ring on one side counterclockwise, and then pry it to one side to disengage from the rectangular notch (slide to the rectangular notch on the other side). Then the first and second side doors can be opened. Similarly, turn the round pull ring on the other side counterclockwise and pry it to one side to open the other pair of side doors. The operation is simple and quick, which helps to improve maintenance efficiency.
[0016] 3. This utility model has a sealing gasket bonded to the inner surface edge of both the first and second side doors. When in use, the sealing gasket can seal the first and second side doors, enhancing the sound and dust insulation effect.
[0017] 4. This utility model has sound insulation cotton glued to the inner surfaces of the first and second side doors respectively. The inner side of the sound insulation cotton is embedded with a strip-shaped notch that cooperates with the pull member. When in use, the sound insulation cotton can play a sound insulation role in the square opening, enhancing the overall sound insulation effect of the inspection port. The strip-shaped notch facilitates the pull member to pass through. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0019] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present utility model;
[0020] Figure 2 for Figure 1 A partial sectional view of the structure;
[0021] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure after closure;
[0022] Figure 4 A schematic diagram of a single structure for a traction component that mates with a pair of first and second side doors;
[0023] Figure 5 This is an enlarged structural schematic diagram of a tensioning component;
[0024] Figure 6 This is a three-dimensional structural diagram of the second embodiment of the present invention.
[0025] The diagram shows: 1. Side wall of shot blasting machine; 11. Square opening; 2. First side door; 3. Second side door; 31. Second hinge; 32. Sealing gasket; 33. Rectangular notch; 4. Pulling component; 41. First collar; 42. Second collar; 43. Internally threaded sleeve; 44. Screw; 45. Circular pull ring; 5. Sound insulation cotton; 51. Strip notch. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0027] like Figures 1 to 5As shown, a quick inspection port for a shot blasting machine includes a shot blasting machine side wall 1. A square opening 11 is embedded in the shot blasting machine side wall 1. The square opening 11 has a first side door 2 that opens in opposite directions. The outer sides of the first side door 2 are respectively hinged to the shot blasting machine side wall 1 by a first hinge (not shown). The square opening 11 has a second side door 3 that opens in opposite directions. The outer sides of the second side door 3 are respectively hinged to the shot blasting machine side wall 1 by a second hinge 31. The second side door 3 has a rectangular notch 33 at the upper and lower middle positions of the inner end of the second side door 3 relative to the second hinge 31. The first side door 2 has a pulling member 4 at the upper and lower middle positions of the inner end of the first hinge that cooperates with the rectangular notch 33.
[0028] The pulling member 4 includes a first collar 41 fixed to the first side door 2, a second collar 42 sleeved on the first collar 41, the second collar 42 being fixedly connected to the inner end of the open internal threaded sleeve 43, a pull rod 44 being threaded in the internal threaded sleeve 43, the pull rod 44 extending out of the outer port of the internal threaded sleeve 43, and a circular pull ring 45 being fixedly provided at the outer end of the pull rod 44.
[0029] A sealing gasket 32 is glued to the inner edge of both the first side door 2 and the second side door 3.
[0030] The rectangular notch 33 has an arc-shaped notch 331 on its outer side that mates with the circular pull ring 45 (which limits the circular pull ring and prevents it from rotating freely and opening the side door).
[0031] After the first side door 2 is closed, the inner opening of the square opening 11 can be sealed.
[0032] The inner surfaces of the first side door 2 opposite to the first hinge are respectively provided with rubber layers (not shown), so that the first side door 2 can be sealed after being connected.
[0033] After the second side door 3 is closed, the outer opening of the square opening 11 can be sealed.
[0034] The inner surfaces of the second side door 3 and the second hinge 31 are respectively provided with rubber layers (not shown) to ensure a seal after the first side door is connected.
[0035] When in use, the first side door 2 and the second side door 3 can cover the inner and outer openings of the square opening 11 after they are closed, and the first side door 2 and the second side door 3 can be pulled and fixed by the pull member 4. Specifically, first close the first side door 2 on one side, then close the opposite second side door 3. Then pull the pull member 4 outwards horizontally and insert it into the rectangular notch 33. Then turn the circular pull ring 45 clockwise to tighten the first side door 2 and the second side door 3. Close the other pair of side doors in the same way. Sound insulation blocks (not shown, flexible) can be detachably inserted into the rectangular notches 33 on both sides of the pull member 4. Thus, the first side door 2 and the second side door 3 can play a double sound insulation role. When it is necessary to open the inspection port 11, pull out the sound insulation block. First, turn the circular pull ring 45 counterclockwise on one side, then pry it to one side to disengage from the rectangular notch 33 (slide to the other rectangular notch 33). Then the first side door 2 and the second side door 3 can be opened inwards and outwards respectively. Similarly, turn the circular pull ring 45 counterclockwise on the other side and pry it to one side to open the other pair of side doors. The operation is simple and quick, which helps to improve maintenance efficiency. The sealing gasket 32 can seal the first side door 2 and the second side door 3, enhancing the sound insulation and dustproofing effect. Example 2
[0036] like Figure 6 As shown, sound insulation cotton 5 (flexible) is respectively bonded to the inner surfaces of the first side door 2 and the second side door 3. The inner side of the sound insulation cotton 5 is respectively embedded with a strip-shaped notch 51 that cooperates with the pull member 4.
[0037] When in use, the sound insulation cotton 5 can play a sound insulation role in the square opening 11, enhancing the overall sound insulation effect of the inspection port, and the strip-shaped notch 51 facilitates the pull piece 4 to be pushed out.
[0038] The components used in this utility model are all general standard parts or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.
[0039] It should be noted that, in this document, the terms "first," "second," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0040] The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which this utility model can be implemented. Any modification of the structure, change of the proportions, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0041] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick inspection port for a shot blasting machine, characterized in that: The machine includes a shot blasting machine sidewall with a square opening. The square opening has a first side door that opens in opposite directions. The outer sides of the first side door are hinged to the shot blasting machine sidewall via first hinges. The outer opening of the square opening has a second side door that opens in opposite directions. The outer sides of the second side door are hinged to the shot blasting machine sidewall via second hinges. The second side door has a rectangular notch at the upper and lower middle positions of the inner ends of the second hinges. The first side door has a pulling member at the upper and lower middle positions of the inner ends of the first hinges that cooperates with the rectangular notch.
2. The quick inspection port for a shot blasting machine according to claim 1, characterized in that: The pulling component includes a first collar fixed to the first side door, a second collar sleeved on the first collar, the second collar being fixedly connected to the inner end of an open internally threaded sleeve, a pull rod being threaded in the internally threaded sleeve, the pull rod extending out of the outer end of the internally threaded sleeve, and a circular pull ring being fixedly provided at the outer end of the pull rod.
3. The quick inspection port for a shot blasting machine according to claim 1, characterized in that: A sealing gasket is bonded to the inner edge of both the first and second side doors.
4. The quick inspection port for a shot blasting machine according to claim 1, characterized in that: The rectangular notch is fitted with arc-shaped notches on its outer side to mate with the circular pull ring.
5. A quick inspection port for a shot blasting machine according to claim 1, characterized in that: After the first side door is closed, it can seal the inner opening of the square opening.
6. A quick inspection port for a shot blasting machine according to claim 1, characterized in that: The inner surfaces of the first side door opposite the hinge are respectively provided with rubber layers, so that the first side door can be sealed after docking.
7. A quick inspection port for a shot blasting machine according to claim 1, characterized in that: The second side door can cover the outer opening of the square opening after it is closed.
8. A quick inspection port for a shot blasting machine according to claim 1, characterized in that: The inner surfaces of the second side door opposite the hinge are respectively provided with rubber layers, so that the first side door can be sealed after being connected.
9. A quick inspection port for a shot blasting machine according to claim 1, characterized in that: The inner surfaces of the first and second side doors are respectively bonded with sound insulation cotton, and the inner side of the sound insulation cotton is respectively embedded with strip-shaped notches that cooperate with the pull member.