Long-service-life wear-resistant ceramic sleeve for sand blasting gun

Abstract

The utility model relates to a long-service-life wear-resistant ceramic sleeve for a sand blasting gun in the technical field of sand blasting guns. When a gun body is installed, a second connecting pipe is inserted into a middle hole cavity of a first fixing ring, the left side wall of the second connecting pipe abuts against one side of a ceramic sleeve, the gun body is pushed towards an outer protection shell, the ceramic sleeve on the right side is made to be close to the sand outlet column, a locking rod is gradually inserted into a second positioning hole to be close to the sand outlet column, and the gun body is installed. And finally, when a limiting rod is located above a step groove, a second spring pushes a sliding block, a locking rod is clamped into a hole cavity of a second positioning hole, and then locking of the gun body is completed. When the gun body is disassembled, a pressing plate is pressed, an abutting block slides from the high position of a second inclined face to the low position of the second inclined face, a sliding ring moves in the direction of a locking assembly, an inserting rod moves from the upper end of a groove cavity of an inclined groove to the lower end of the groove cavity of the inclined groove, the locking assembly is driven to move upwards, finally, a locking rod is separated from a hole cavity of a second positioning hole, and the gun body is disassembled. And the gun body can be quickly disassembled.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting gun technology, and in particular to a long-life, wear-resistant ceramic sleeve for sandblasting guns. Background Technology

[0002] Sandblasting guns propel abrasive materials (such as copper ore sand, quartz sand, and corundum) onto the workpiece surface at high speed. By utilizing the impact and cutting action of the abrasive on the workpiece, the surface of the workpiece is cleaned and its roughness is altered. Currently, the nozzle sleeve of common sandblasting guns is made of metal. When facing high-hardness abrasives, the inner wall of the nozzle sleeve is subjected to strong impact and friction from the high-speed abrasive, which leads to accelerated wear and affects the service life and working efficiency of the sandblasting gun.

[0003] For example, Chinese patent application CN202022288194.3 discloses a sandblasting gun nozzle with aperture scaling adjustment function. Its specific content includes a nozzle sleeve, with a sand-discharging column threadedly connected to the left end face of the nozzle sleeve, and a gun body threadedly connected to the right end face of the nozzle sleeve. During use, a suitable sand-discharging column can be selected according to the aperture adjustment requirements. Then, the column can be held and a fixing post inserted into the left end position of the nozzle sleeve, engaging with its inner thread. The gun body is threadedly connected to the right end face of the nozzle sleeve. However, it still has the following technical problems:

[0004] The nozzle sleeve is fixed at both ends by threaded connection, which requires multiple rotations of the nozzle sleeve to fix it during installation or removal. As can be seen, the above structure makes the installation and removal of the nozzle sleeve quite cumbersome. Utility Model Content

[0005] To address the cumbersome disassembly and assembly of the nozzle sleeve as mentioned in the background section, this utility model provides the following technical solution:

[0006] A long-life, wear-resistant ceramic sleeve for a sandblasting gun, including a nozzle sleeve;

[0007] A sand-discharging column is installed on the left side of the nozzle sleeve, and a gun body is installed on the right end of the nozzle sleeve.

[0008] The nozzle sleeve includes an outer protective shell, and locking structures are installed on the left and right sides of the outer protective shell. The locking structures include locking components for locking the sand column and the gun body.

[0009] The outer protective shell has protective sleeves symmetrically installed on the left and right sides of its inner cavity for limiting the locking component. The protective sleeves include slip rings, and the outer protective shell includes an unlocking rod for cooperating with the slip rings to control the locking component to unlock the sand column and the gun body.

[0010] Furthermore, a connecting pipe is installed at the right end of the sand-discharging column, and the outer wall of the connecting pipe is provided with multiple positioning holes for locking the sand-discharging column in conjunction with the locking assembly. A connecting pipe is installed on the left side of the gun body, and the outer wall of the connecting pipe is provided with multiple positioning holes for locking the gun body in conjunction with the locking assembly.

[0011] Furthermore, the unlocking rod includes an abutment block, a bolt is installed in the middle of the abutment block, a connecting rod is installed at the upper end of the abutment block, a pressing plate is installed at the upper end of the connecting rod, a threaded hole is opened at one end of the connecting rod for locking the abutment block with the bolt, and a spring is sleeved on the upper end of the connecting rod for pushing the pressing plate upward.

[0012] Furthermore, the locking structure includes a first fixing ring for limiting the locking assembly, a plurality of bolts two for facilitating the limiting of the first fixing ring are installed on one side of the first fixing ring, a spring two for pushing the locking assembly downward is installed at the upper end of the locking assembly, and a sealing cover for limiting the spring two is installed at the upper end of the spring two.

[0013] Furthermore, the locking assembly includes a slider, one end of which is equipped with a locking rod for locking the gun body in conjunction with the positioning hole, and the locking rod locks the sand column in conjunction with the positioning hole. A limit rod is installed at one end of the slider, and a slanted groove is machined on one side of the slider.

[0014] Furthermore, the protective sleeve includes a ceramic sleeve, and a slip ring is sleeved on the outside of the ceramic sleeve, and a spring is sleeved on the outside of the two ceramic sleeves that are close to each other.

[0015] Furthermore, a second fixing ring for limiting the spring is installed on the outside of the ceramic sleeve. A plurality of magnetic blocks are installed in the middle of the second fixing ring. A stepped groove is opened on one side of the ceramic sleeve, and a bevel is machined on one side of the stepped groove.

[0016] Furthermore, a fixed insert rod for pushing the slider is installed on one side of the slip ring in conjunction with the inclined groove, and an inclined surface two for cooperating with the abutment block to control the movement of the slip ring is machined on the side of the slip ring near the second fixed ring. Multiple magnetic blocks two for magnetic attraction with magnetic block one are installed in the middle of the slip ring.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. When installing the gun body, insert the second connecting tube into the middle cavity of the first fixing ring. The left side wall of the second connecting tube and one side of the ceramic sleeve should abut against each other. By pushing the gun body towards the outer protective shell, the ceramic sleeve on the right side moves closer to the sand column. The locking rod is gradually inserted towards the second positioning hole. Finally, when the limiting rod is above the stepped groove, the second spring pushes the slider, and the locking rod is engaged in the cavity of the second positioning hole, thus completing the locking of the gun body.

[0019] 2. When disassembling the gun body, by pressing the pressing plate, the abutment block slides from the high point of the second inclined plane to the low point of the second inclined plane, and moves the slip ring towards the locking component, so that the insertion rod moves from the upper end of the groove cavity to the lower end of the groove cavity, and drives the locking component to move upward. Finally, the locking rod disengages from the cavity of the second positioning hole, and the gun body can be quickly disassembled. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the nozzle sleeve of this utility model;

[0022] Figure 3 This is a schematic diagram of the unlocking rod of this utility model;

[0023] Figure 4 This is a schematic diagram of the locking structure of this utility model;

[0024] Figure 5 This utility model Figure 2 Enlarged view of point A;

[0025] Figure 6 This is a schematic diagram of the locking component of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the protective sleeve of this utility model;

[0027] Figure 8 This utility model Figure 7 Enlarged view of point B.

[0028] The following is a list of component names represented by the various reference numerals in the attached figures:

[0029] 10-Sand column, 11-Connecting pipe one, 12-Positioning hole one, 20-Gun body, 21-Connecting pipe two, 22-Positioning hole two;

[0030] 01- Nozzle sleeve;

[0031] 100-Outer protective shell, 110-Unlocking rod, 111-Abutting block, 112-Connecting rod, 113-Pressing plate, 114-Threaded hole, 115-Spring 1, 116-Bolt 1;

[0032] 200-Locking structure, 210-First fixing ring, 211-Second bolt, 220-Locking assembly, 221-Slider, 222-Locking rod, 223-Limiting rod, 224-Inclined groove, 230-Sealing cover, 240-Second spring;

[0033] 300-Protective sleeve, 310-Ceramic sleeve, 311-Step groove, 312-Inclined surface one, 313-Second fixing ring, 314-Magnetic block one, 320-Slip ring, 321-Insertion rod, 322-Inclined surface two, 323-Magnetic block two, 330-Spring three. Detailed Implementation

[0034] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0035] Please see Figures 1-8 This utility model provides a long-life wear-resistant ceramic sleeve for a sandblasting gun, including a nozzle sleeve 01, with a sand-ejecting column 10 installed on the left side of the nozzle sleeve 01 and a gun body 20 installed on the right end of the nozzle sleeve 01. The nozzle sleeve 01 facilitates quick assembly and disassembly of the sand-ejecting column 10 and the gun body 20.

[0036] The nozzle sleeve 01 includes an outer protective shell 100. Locking structures 200 are installed on the left and right sides of the outer protective shell 100. Each locking structure 200 includes a locking component 220 for locking the sand-ejecting column 10 and the gun body 20. A connecting pipe 11 is fixedly installed at the right end of the sand-ejecting column 10. The outer wall of the connecting pipe 11 has multiple positioning holes 12 for locking the sand-ejecting column 10 with the locking component 220. A connecting pipe 21 is fixedly installed on the left side of the gun body 20. The outer wall of the connecting pipe 21 has multiple positioning holes 22 for locking the gun body 20 with the locking component 220.

[0037] The locking assembly 220 includes a slider 221. One end of the slider 221 is fixedly equipped with a locking rod 222 for locking the gun body 20 in conjunction with the positioning hole 222. The locking rod 222 locks the sand-ejecting column 10 in conjunction with the positioning hole 12. One end of the slider 221 is fixedly equipped with a limiting rod 223. The locking rod 222 and the limiting rod 223 are of the same length and are located on the same side of the slider 221. The slider 221 has a slanted groove 224 on the side near the outer protective shell 100. When the locking rod 222 is inserted into the positioning hole 12, it can lock the sand-ejecting column 10, making the sand-ejecting column 10 stable on the left side of the outer protective shell 100. When the locking rod 222 is inserted into the positioning hole 222, it locks the gun body 20, making the gun body 20 stable on the right side of the outer protective shell 100.

[0038] The outer protective shell 100 has protective sleeves 300 symmetrically installed on its inner cavity for limiting the locking assembly 220. The protective sleeves 300 include slip rings 320.

[0039] The outer protective shell 100 includes an unlocking rod 110 for unlocking the sand column 10 and the gun body 20 by cooperating with the slip ring 320 to control the locking assembly 220. The unlocking rod 110 includes an abutment block 111, a bolt 116 is installed in the middle of the abutment block 111, a connecting rod 112 is installed at the upper end of the abutment block 111, and a pressing plate 113 is fixedly installed at the upper end of the connecting rod 112. One end of the connecting rod 112 has a threaded hole 114 for locking the abutment block 111 with the bolt 116. When the bolt 116 is screwed into the threaded hole 114, the abutment block 111 can be fixed to the bottom of the connecting rod 112. A spring 115 is sleeved on the upper end of the connecting rod 112 for pushing the pressing plate 113 upward, and the spring 115 is located outside the outer protective shell 100.

[0040] The locking structure 200 includes a first retaining ring 210 for limiting the locking assembly 220, and multiple locking assemblies 220 are installed in the middle of the first retaining ring 210. Multiple bolts 211 for limiting the first retaining ring 210 are installed on one side of the first retaining ring 210. Threaded holes are provided on both sides of the outer protective shell 100 so that the first retaining ring 210 is fixed to the side of the outer protective shell 100 when it is screwed into the threaded holes on the side of the outer protective shell 100. A spring 240 for pushing the locking assembly 220 downward is installed at the upper end of the locking assembly 220. A sealing cover 230 for limiting the spring 240 is installed at the upper end of the spring 240. The sealing cover 230 is fixed to the side of the first retaining ring 210 by bolts. Multiple slots a are provided in the middle of the first retaining ring 210 for placing the locking assembly 220, the spring 240, and the sealing cover 230.

[0041] The protective sleeve 300 includes a ceramic sleeve 310. The ceramic sleeve 310 is more wear-resistant than metal, which helps to increase the service life of the protective sleeve 300. A slip ring 320 is sleeved on the outside of the ceramic sleeve 310. A spring 330 for pushing the ceramic sleeve 310 is sleeved on the outside of the two ceramic sleeves 310 that are close to each other. A second fixing ring 313 for limiting the spring 330 is fixedly installed on the outside of the ceramic sleeve 310. Multiple magnetic blocks 314 are installed in the middle of the second fixing ring 313. A stepped groove 311 is opened on the side of the ceramic sleeve 310 near the connecting pipe 11 or the connecting pipe 21. A bevel 312 is machined on one side of the stepped groove 311. When the limiting rod 223 is on the stepped groove 311, the locking rod 222 is engaged in the cavity of the positioning hole 12 or the positioning hole 22.

[0042] A sliding ring 320 has a fixed rod 321 installed on one side for pushing the slider 221 with the inclined groove 224. The side of the sliding ring 320 near the second fixed ring 313 has a second inclined surface 322 for cooperating with the abutment block 111 to control the sliding ring 320 to move closer to the locking assembly 220. Multiple magnetic blocks 323 are fixedly installed in the middle of the sliding ring 320 for magnetic attraction with magnetic block 314. When the spring 115 pushes the pressing plate 113, the unlocking rod 110 moves away from the sliding ring 320, and magnetic blocks 314 and magnetic blocks 323 are magnetically attracted, causing the sliding ring 320 to move towards the second fixed ring 313.

[0043] When assembling the nozzle sleeve 01, the protective sleeve 300 can be first installed into the inner cavity of the outer protective shell 100, and then the first fixing ring 210 can be fixed to one side of the outer protective shell 100 by the bolt 211 on the first fixing ring 210, so that the protective sleeve 300 is in the inner cavity of the outer protective shell 100.

[0044] Under the push of spring 330, one side of ceramic sleeve 310 is positioned in the middle hole of first fixing ring 210, and limiting rod 223 abuts against the outer wall of ceramic sleeve 310. Due to the limiting of ceramic sleeve 310, locking rod 222 cannot be inserted into the middle hole of first fixing ring 210.

[0045] The disassembly and assembly steps of the sand-discharging column 10 and the gun body 20 of this utility model are the same. When installing the gun body 20, the connecting tube 21 is inserted into the middle cavity of the first fixing ring 210. The left side wall of the connecting tube 21 and one side of the ceramic sleeve 310 are abutted. By pushing the gun body 20 toward the outer protective shell 100, the ceramic sleeve 310 on the right side moves closer to the sand-discharging column 10. The locking rod 222 is gradually inserted toward the positioning hole 22. Finally, when the limiting rod 223 is above the stepped groove 311, the spring 240 pushes the slider 221, and the locking rod 222 is engaged in the cavity of the positioning hole 22, thereby completing the locking of the gun body 20.

[0046] When disassembling the gun body 20, by pressing the pressing plate 113, the abutment block 111 slides from the high point of the second inclined surface 322 to the low point of the second inclined surface 322, and moves the slip ring 320 towards the locking assembly 220, so that the insertion rod 321 moves from the upper end of the groove cavity of the inclined groove 224 to the lower end of the groove cavity of the inclined groove 224, and drives the locking assembly 220 to move upward. Finally, the locking rod 222 disengages from the cavity of the second positioning hole 22, and the gun body 20 can be quickly disassembled.

[0047] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A long-life sandblasting gun wear-resistant ceramic sleeve, comprising a nozzle sleeve (01), characterized in that: a sand outlet column (10) is mounted on the left side of the nozzle sleeve (01), and a gun body (20) is mounted at the right end of the nozzle sleeve (01); the nozzle sleeve (01) comprises an outer protective shell (100), lock structures (200) are mounted on the left and right sides of the outer protective shell (100), the lock structures (200) comprise lock assemblies (220) for locking the sand outlet column (10) and the gun body (20); a protective sleeve (300) for limiting the lock assemblies (220) is symmetrically mounted in the inner cavity of the outer protective shell (100) on the left and right sides, the protective sleeve (300) comprises a sliding ring (320), and the outer protective shell (100) comprises an unlocking lever (110) for cooperating with the sliding ring (320) to control the lock assemblies (220) to unlock the sand outlet column (10) and the gun body (20).

2. The long life wear resistant ceramic sleeve for a sandblaster gun of claim 1, wherein: a connecting pipe one (11) is mounted at the right end of the sand outlet column (10), a plurality of positioning holes one (12) for cooperating with the lock assemblies (220) to lock the sand outlet column (10) are formed in the outer wall of the connecting pipe one (11), a connecting pipe two (21) is mounted on the left side of the gun body (20), and a plurality of positioning holes two (22) for cooperating with the lock assemblies (220) to lock the gun body (20) are formed in the outer wall of the connecting pipe two (21).

3. The long life wear resistant ceramic sleeve for a sandblaster gun of claim 1, wherein: the unlocking lever (110) comprises a contact block (111), a bolt one (116) is mounted in the middle of the contact block (111), a connecting rod (112) is mounted at the upper end of the contact block (111), a pressing plate (113) is mounted at the upper end of the connecting rod (112), a threaded hole (114) for cooperating with the bolt one (116) to lock the contact block (111) is formed in one end of the connecting rod (112), and a spring one (115) for pushing the pressing plate (113) upward is sleeved on the upper end of the connecting rod (112).

4. The long life wear resistant ceramic sleeve for a sandblaster gun of claim 1, wherein: the lock structures (200) comprise a first fixed ring (210) for limiting the lock assemblies (220), a plurality of bolt two (211) for facilitating the limitation of the first fixed ring (210) are mounted on one side of the first fixed ring (210), a spring two (240) for pushing the lock assemblies (220) downward is mounted at the upper end of the lock assemblies (220), and a sealing cover (230) for limiting the spring two (240) is mounted at the upper end of the spring two (240).

5. The long life wear resistant ceramic sleeve for a sandblaster gun of claim 2, wherein: the lock assemblies (220) comprise a sliding block (221), a locking rod (222) for cooperating with the positioning holes two (22) to lock the gun body (20) is mounted at one end of the sliding block (221), the locking rod (222) cooperates with the positioning holes one (12) to lock the sand outlet column (10), a limiting rod (223) is mounted at one end of the sliding block (221), and an inclined groove (224) is processed on one side of the sliding block (221).

6. The long life, wear resistant, ceramic sleeve for a sandblasting gun of claim 3, wherein: The protective sleeve (300) comprises ceramic sleeves (310), and a slip ring (320) is sleeved outside the ceramic sleeves (310), and the two ceramic sleeves (310) are sleeved with spring three (330) outside the close end.

7. A long life, wear resistant, ceramic sleeve for a sandblasting gun according to claim 6, characterized in that: A second fixing ring (313) for limiting the spring three (330) is mounted outside the ceramic sleeve (310), a plurality of magnetic blocks one (314) are mounted in the middle of the second fixing ring (313), a stepped groove (311) is formed on one side of the ceramic sleeve (310), and an inclined surface one (312) is formed on one side of the stepped groove (311).

8. A long life, wear resistant, ceramic sleeve for a sandblasting gun according to claim 7, characterized in that: A fixed inserting rod (321) for pushing and fixing the sliding block (221) in cooperation with the inclined groove (224) is mounted on one side of the slip ring (320), an inclined surface two (322) for controlling the movement of the slip ring (320) in cooperation with the abutting block (111) is formed on one side of the slip ring (320) close to the second fixing ring (313), and a plurality of magnetic blocks two (323) for magnetic attraction with the magnetic blocks one (314) are mounted in the middle of the slip ring (320).

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