Spray gun accessory for enhancing texture effect of slurry spray gun and slurry spray gun

By incorporating both built-in and external sleeves in the spray gun accessories, the powder and slurry are mixed outside the spray gun, solving the problem of the lack of three-dimensionality and naturalness in the texture of artificial stone slabs, and achieving a more aesthetically pleasing texture effect.

CN223832562UActive Publication Date: 2026-01-27VEEGOO TECH CO LTD
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Patent Information

Application Number
CN202520155385.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-27
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Traditional artificial stone slabs lack a three-dimensional and natural texture, resulting in insufficient aesthetic appeal.

Method used

The spray gun accessories that enhance the texture effect of the slurry spray gun are adopted. The powder output channel is formed by the inner tube sleeve and the outer tube sleeve, so that the powder and slurry are mixed outside the spray gun to form a three-dimensional, natural and unique texture.

Benefits of technology

It improves the texture of artificial stone slabs, creating a three-dimensional, natural, unique, and beautiful texture, solving the problem of lack of three-dimensionality and naturalness in textures in traditional spraying methods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spray gun accessory for enhancing texture effect of a slurry spray gun and the slurry spray gun. The spray gun accessory is mounted on the slurry spray gun and comprises an internal pipe sleeve and an external pipe sleeve; the built-in pipe sleeve is provided with an inner pipe cavity which is used for mounting a spray gun nozzle of a slurry spray gun; the external pipe sleeve is provided with an outer pipe cavity, an outer pipe fixing seat is further arranged at one end of the outer pipe cavity, and an outer pipe opening is formed in the other end of the outer pipe cavity. The built-in pipe sleeve is limited in the outer pipe cavity; one end of the built-in pipe sleeve is detachably limited to the outer pipe fixing base, and the other end of the built-in pipe sleeve is located at the outer pipe opening. A powder feeding output channel is formed between the outer pipe cavity and the built-in pipe sleeve; the external pipe sleeve is provided with a powder inlet pipe opening communicated with the powder feeding output channel. According to the scheme, the powder feeding output channel formed by the outer pipe cavity and the built-in pipe sleeve can be combined to output powder, slurry and the powder can be mixed outside the spray gun accessory, the texture effect can be improved, three-dimensional, natural, unique and attractive textures can be formed, and the problem that textures of an existing artificial stone plate lack the three-dimensional sense and the natural sense is solved.
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Description

Technical Field

[0001] This utility model relates to the field of powder and slurry spraying tools, and in particular to a spray gun accessory and a slurry spray gun that enhance the texture effect of the slurry spray gun. Background Technology

[0002] Traditional artificial stone slabs are typically produced using a single powder spraying or slurry spraying process, meaning the powder and slurry are output separately. Due to workshop limitations, the powder has a certain degree of mobility and cannot settle onto the slab surface. While three-dimensional textures are achieved by the slurry settling onto the slab after output, this method fails to create a sense of depth and naturalness. In short, the current method of applying materials to artificial stone slabs results in a lack of three-dimensionality and naturalness in the textures, making them less unique and aesthetically pleasing compared to natural stone. Utility Model Content

[0003] The purpose of this invention is to provide a spray gun accessory that enhances the texture effect of a slurry spray gun. It is installed on a slurry spray gun, and the spray gun nozzle of the slurry spray gun is installed in an inner tube sleeve for outputting slurry. It can output powder by combining the powder output channel formed by the outer tube cavity and the inner tube sleeve. The slurry and powder can be mixed separately outside the spray gun accessory, which can improve the texture effect.

[0004] This utility model also proposes a slurry spray gun that uses the above-mentioned spray gun accessories.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A spray gun accessory for enhancing the texture effect of a slurry spray gun, installed on a slurry spray gun, includes: an inner sleeve and an outer sleeve;

[0007] The built-in sleeve has an inner cavity for installing the nozzle of the slurry spray gun; the outer sleeve has an outer cavity, and an outer tube fixing seat is provided at one end of the outer cavity, and an outer tube opening is provided at the other end of the outer cavity; the built-in sleeve is limited within the outer cavity; one end of the built-in sleeve is detachably limited within the outer tube fixing seat, and the other end of the built-in sleeve is located at the outer tube opening;

[0008] A powder delivery channel is formed between the outer tube and the inner tube sleeve; the outer tube sleeve is provided with a powder inlet that communicates with the powder delivery channel.

[0009] Optimally, the outer tube cavity is provided with an outer tube tapered portion and an outer tube cylindrical portion sequentially along its length;

[0010] The powder inlet is located at the tapered portion of the outer tube; the outer tube opening is located at the cylindrical portion of the outer tube.

[0011] The inner diameter of the tapered portion of the outer tube gradually decreases towards the outer tube opening.

[0012] Alternatively, the inner tube sleeve may extend beyond the outer tube opening at one end, which is away from the outer tube fixing seat.

[0013] Optimally, it may also include: a spray gun holder;

[0014] The spray gun mounting base is provided with a gun holder receiving cavity, which is used to receive the spray gun nozzle of the slurry spray gun; the gun holder receiving cavity is provided with a gun holder receiving opening for the spray gun nozzle to pass through;

[0015] The spray gun mounting base is detachably mounted on the outer tube mounting base.

[0016] Alternatively, the gun mount receiving cavity may be provided with a screw passage, and the outer tube fixing seat may be provided with an outer seat screw hole;

[0017] The spray gun mounting base is installed on the outer tube mounting base by an outer mounting screw, which passes through the screw through-hole and is threaded into the outer mounting screw hole.

[0018] Optimally, the built-in sleeve includes: a fixed sleeve and an inner branch sleeve;

[0019] One end of the fixed sleeve is connected to one end of the inner branch pipe, the other end of the fixed sleeve is limited to the outer pipe fixing seat, and the other end of the inner branch pipe is located at the outer pipe opening.

[0020] Ideally, the fixed sleeve and the inner branch pipe are ceramic pipes.

[0021] Alternatively, the fixing sleeve can be bonded to the inner branch pipe.

[0022] Optimally, it may also include: an inner tube fastening pin;

[0023] The outer tube fixing seat has an outer fixing hole on its outer side; the inner tube fastening pin is located in the outer fixing hole; one end of the inner tube fastening pin extends into the interior of the outer tube fixing seat and abuts against the inner tube sleeve, so that one end of the inner tube sleeve is detachably located in the outer tube fixing seat.

[0024] A slurry spray gun, equipped with the aforementioned spray gun accessory that enhances the texture effect of the slurry spray gun;

[0025] The slurry spray gun is provided with a spray gun body and a spray gun nozzle. The spray gun nozzle is installed at the spray gun mouth of the spray gun body; the spray gun nozzle is confined within the inner cavity.

[0026] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0027] This solution provides a spray gun accessory that enhances the texture effect of a slurry spray gun. It is installed on the slurry spray gun, and the spray gun nozzle is installed in the inner tube sleeve for outputting slurry. It can output powder by combining the powder output channel formed by the outer tube cavity and the inner tube sleeve. The slurry and powder can be mixed separately outside the spray gun accessory, which can improve the texture effect and form a three-dimensional, natural, unique and beautiful texture, solving the problem that the texture of existing artificial stone slabs lacks three-dimensionality and naturalness. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of one embodiment of the assembly of a slurry spray gun and spray gun accessories;

[0029] Figure 2 This is an exploded structural diagram of one embodiment of the slurry spray gun and spray gun accessories assembly;

[0030] Figure 3 This is a cross-sectional structural diagram of one embodiment of the slurry spray gun and spray gun accessories assembly.

[0031] in:

[0032] Spray gun accessories 5; Slurry spray gun 6;

[0033] Internal sleeve 51, external sleeve 52; spray gun mounting base 53; inner tube fastening pin 54;

[0034] Inner lumen 510; fixed sleeve 511; inner branch pipe 512;

[0035] 521 Outer tube cavity; 522 Outer tube fixing seat; 523 Outer tube port; 524 Powder feeding output channel; 525 Powder inlet; 526 Outer tube tapered part; 527 Outer tube cylindrical part; 528 Outer seat screw hole; 529 Outer seat fixing hole; 520 Outer seat screw; 531 Gun holder receiving cavity; 532 Gun holder receiving port; 533 Screw passage;

[0036] Spray gun nozzle 61; spray gun mouth 62. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0039] like Figure 1-3 A spray gun accessory 5 that enhances the texture effect of a slurry spray gun is installed on a slurry spray gun 6 and includes: an inner sleeve 51 and an outer sleeve 52.

[0040] The built-in sleeve 51 has an inner cavity 510 for installing the nozzle 61 of the slurry spray gun 6; the outer sleeve 52 has an outer cavity 521, and an outer tube fixing seat 522 is provided at one end of the outer cavity 521, and an outer tube opening 523 is provided at the other end of the outer cavity 521; the built-in sleeve 51 is limited to the outer cavity 521; one end of the built-in sleeve 51 is detachably limited to the outer tube fixing seat 522, and the other end of the built-in sleeve 51 is located at the outer tube opening 523;

[0041] The outer tube cavity 521 and the inner tube sleeve 51 form a powder feeding and output channel 524; the outer tube sleeve 52 is provided with a powder inlet 525 that communicates with the powder feeding and output channel 524.

[0042] This solution provides a spray gun accessory 5 to enhance the texture effect of the slurry spray gun. It is installed on the slurry spray gun 6. The spray gun nozzle 61 of the slurry spray gun 6 is installed on the inner tube sleeve 51 for outputting slurry. It can output powder by combining the powder output channel 524 formed by the outer tube cavity 521 and the inner tube sleeve 51. The slurry and powder can be mixed separately outside the spray gun accessory 5, which can improve the texture effect and form a three-dimensional, natural, unique and beautiful texture, solving the problem that the texture of existing artificial stone slabs lacks three-dimensionality and naturalness.

[0043] Specifically, the slurry spray gun 6 is a conventional mechanism for slurry output and can be purchased directly from the market. In this design, the spray gun accessory 5 is installed on the spray gun nozzle 61 of the slurry spray gun 6. The spray gun nozzle 61 can extend into the inner cavity 510 of the inner sleeve 51. The outer sleeve 52 has an outer cavity 521 for installing the inner sleeve 51. One end of the outer cavity 521 has an outer tube fixing seat 522 for detachably fixing the inner sleeve 51, allowing the inner sleeve 51 to be confined within the outer cavity 521. When the inner sleeve 51 is confined within the outer cavity 521, a powder feeding and output channel 524 is formed between the outer cavity 521 and the inner sleeve 51. Powder can be introduced into the powder inlet 525, and the powder is output through the powder feeding and output channel 524 to the outer inlet 523, thus being output to the outside. The spray gun nozzle 61, installed in the inner sleeve 51, allows the slurry spray gun 6 to output slurry through the nozzle 61. The slurry is output through the inner sleeve 51, which is equivalent to outputting from the outer pipe opening 523. Thus, powder and slurry are simultaneously output from the outer pipe opening 523. On one hand, the powder, after being output, forms specific patterns through random distribution. Under gravity, the powder falls freely onto the artificial stone slab, forming a two-dimensional planar structure. On the other hand, the powder mixes with the slurry in mid-air, making it easier to form moist particles. These particles have a three-dimensional structure and are much larger than a single powder particle. Therefore, when they fall onto the artificial stone slab, they can form a three-dimensional structure. Because the particles are moist, this three-dimensional structure is not easily disintegrated, resulting in structural stability. More importantly, the resulting two-dimensional planar and three-dimensional structures are textures formed naturally by falling slurry, possessing the advantages of being three-dimensional, natural, and uniquely beautiful.

[0044] The slurry spray gun 6 installed in the spray gun accessory 5 of this solution is a well-known mechanism, which generally has a conventional structure such as a slurry inlet, an atomization control port and a spray gun switch control port, and will not be described in detail here.

[0045] Alternatively, the outer tube cavity 521 may be provided with an outer tube tapered portion 526 and an outer tube cylindrical portion 527 sequentially along its length;

[0046] The powder inlet 525 is located on the tapered portion 526 of the outer tube; the outer tube opening 523 is located on the cylindrical portion 527 of the outer tube.

[0047] The inner diameter of the tapered portion 526 of the outer tube gradually decreases towards the outer tube opening 523.

[0048] The outer tube cavity 521 of this design is divided into at least two sections along its length, specifically an outer tube conical section 526 and an outer tube cylindrical section 527. The outer tube conical section 526 has a powder inlet 525 for inputting powder. The inner diameter of the outer tube conical section 526 gradually narrows towards the outer tube inlet 523, which gradually narrows the inner diameter of the powder output channel. When the powder passes through the outer tube conical section 526 of the powder output channel, it is pressurized, causing the powder to be output towards the outer tube inlet 523 of the outer tube cylindrical section 527. The outer tube cylindrical section 527 has a conventional cylindrical tube profile; thus, the large-diameter end of the outer tube conical section 526 can temporarily store more powder, achieving a pressure reduction and powder buffering effect. The gradually narrowing inner diameter of the outer tube conical section 526 can increase the powder flow rate, thereby stabilizing the powder flow, reducing or avoiding intermittent powder output, resulting in more uniform powder output and ensuring stable flow rate.

[0049] Alternatively, the inner tube sleeve 51 may extend out of the outer tube opening 523 at the end furthest from the outer tube fixing seat 522.

[0050] like Figure 3 One end of the built-in sleeve 51 extends slightly beyond the outer tube opening 523, meaning that the end face of the slurry spray gun 6 and the outer tube opening 523 are not on the same plane. This prevents the slurry from mixing with the powder inside the outer sleeve 52 during output. The slurry and powder mainly mix during the falling process, resulting in a more random distribution of the powder and a more three-dimensional, natural, unique, and beautiful texture.

[0051] Optimally, it also includes: spray gun holder 53;

[0052] The spray gun mounting base 53 is provided with a gun holder receiving cavity 531, which is used to receive the spray gun nozzle 62 of the slurry spray gun 6; the gun holder receiving cavity 531 is provided with a gun holder receiving opening 532 for the spray gun nozzle 61 to pass through.

[0053] The spray gun mounting base 53 is detachably mounted on the outer tube mounting base 522.

[0054] This design uses a spray gun mounting base 53 to fix the slurry spray gun 6, allowing it to be fixed in any device. The spray gun nozzle 61 is mounted on the nozzle 62 of the slurry spray gun 6, and the nozzle 62 is installed in the gun holder cavity 531. The nozzle 61 passes through the gun holder cavity 532 and extends into the inner tube cavity 510. The spray gun mounting base 53 is also mounted on an outer tube mounting base 522, thereby fixing the spray gun accessory 5 and the slurry spray gun 6 together.

[0055] Alternatively, the gun mount receiving cavity 531 is provided with a screw passage 533, and the outer tube fixing seat 522 is provided with an outer seat screw hole 528;

[0056] The spray gun mounting base 53 is installed on the outer tube mounting base 522 by an outer mounting screw 520. The outer mounting screw 520 passes through the screw through-hole 533 and is threaded into the outer mounting screw hole 528.

[0057] The spray gun mounting base 53 is installed on the outer tube mounting base 522 by the outer mounting screw 520. The spray gun mounting base 53 can be added when needed. The screw of the outer mounting screw 520 passes through the screw through port 533 and is threaded into the outer mounting screw hole 528. The screw head of the outer mounting screw 520 is limited to the gun holder receiving cavity 531.

[0058] Optimally, the built-in sleeve 51 includes: a fixed sleeve 511 and an inner branch pipe 512;

[0059] One end of the fixed sleeve 511 is connected to one end of the inner branch pipe 512, the other end of the fixed sleeve 511 is limited to the outer pipe fixing seat 522, and the other end of the inner branch pipe 512 is located at the outer pipe opening 523.

[0060] The built-in sleeve 51 of this design can be a split design, dividing the entire built-in sleeve 51 into at least a fixed sleeve 511 and an inner branch pipe 512. The fixed sleeve 511 and the inner branch pipe 512 are respectively provided with inner cavities 510 for accommodating the spray gun nozzle 61. The fixed sleeve 511 mainly serves to fix and limit the built-in sleeve 51, while the inner branch pipe 512 is the main part that accommodates the spray gun nozzle 61. Thus, the inner branch pipe 512 is the part that mainly contacts the powder. When the powder passes through the powder delivery channel 524, it will contact the surface of the inner branch pipe 512, causing wear. The inner branch pipe 512 is a consumable part. Therefore, after long-term use, only the inner branch pipe 512 needs to be replaced; the entire pipe does not need to be replaced.

[0061] The fixed sleeve 511 and the inner branch pipe 512 can be connected together in a known way, such as screw fixing, snap-fit ​​fixing, thread fixing, etc., as long as the connection is achieved.

[0062] Alternatively, the fixed sleeve 511 and the inner branch pipe 512 can be ceramic pipes.

[0063] The ceramic tube, made of ceramic material, possesses heat resistance, wear resistance, and corrosion resistance, making it ideal as an internal sleeve 51. For the powder delivery channel 524 formed by the fixed sleeve 511 and the outer cavity 521, the ceramic material extends the service life of the fixed sleeve 511 when the powder contacts its outer surface. Furthermore, when the slurry is discharged outside the outer port 523, it may come into contact with the fixed sleeve 511; the corrosion resistance of the ceramic material prevents corrosion of the fixed sleeve 511.

[0064] Alternatively, the fixed sleeve 511 can be bonded to the inner branch pipe 512.

[0065] The fixing sleeve 511 is preferably bonded to the inner branch pipe 512. Adhesive bonding improves the stability of the fixing sleeve 511 and the inner branch pipe 512, preventing separation during use. When the inner branch pipe 512 needs to be replaced, an adhesive remover or burning of the bonded surfaces can be used to release the bond.

[0066] Optimally, it also includes: inner tube fastening pin 54;

[0067] The outer tube fixing seat 522 has an outer seat fixing hole 529 on its outer side; the inner tube fastening pin 54 is limited in the outer seat fixing hole 529; one end of the inner tube fastening pin 54 extends into the interior of the outer tube fixing seat 522 and abuts against the inner tube sleeve 51, so that one end of the inner tube sleeve 51 is detachably limited in the outer tube fixing seat 522.

[0068] The inner tube fastening pin 54 can be positioned within the outer seat fixing hole 529 using known methods, such as clamping, spring pressing, or snap-fit ​​fixing. When the inner tube fastening pin 54 is positioned within the outer seat fixing hole 529, one end of the inner tube fastening pin 54 can extend into the interior of the outer tube fixing seat 522, and the inner tube fastening pin 54 can contact the outer surface of the inner tube sleeve 51, specifically fixing the sleeve 511. The fixed sleeve 511 is positioned within the outer tube fixing seat 522 under the pressing action of the inner tube fastening pin 54. Different outer surfaces of the outer tube fixing seat 522 can each have an outer seat fixing hole 529, for example, two opposing outer surfaces can each have an outer seat fixing hole 529. When the inner tube fastening pin 54 is installed in each of the two outer seat fixing holes 529, the two inner tube fastening pins 54 press against each other, causing the inner tube sleeve 51 to be positioned within the outer tube fixing seat 522.

[0069] In the preferred embodiment, the inner tube fastening pin 54 is threaded into the outer seat fixing hole 529.

[0070] The inner tube fastening pin 54 can be provided with an external thread structure, and the outer seat fixing hole 529 can be provided with an internal thread structure. The inner tube fastening pin 54 is threaded into the outer seat fixing hole 529. The tightening or loosening state of the inner tube sleeve 51 can be adjusted simply by rotating the inner tube fastening pin 54, which facilitates the daily replacement of the inner tube sleeve 51.

[0071] A slurry spray gun 6 is equipped with the aforementioned spray gun accessory 5 that enhances the texture effect of the slurry spray gun;

[0072] The slurry spray gun 6 is provided with a spray gun body and a spray gun nozzle 61. The spray gun nozzle 61 is installed at the spray gun mouth 62 of the spray gun body; the spray gun nozzle 61 is limited to the inner cavity 510.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A spray gun accessory for enhancing the texture effect of a slurry spray gun, installed on a slurry spray gun, characterized in that, include: Internal tubing and external tubing; The built-in sleeve has an inner cavity for installing the nozzle of the slurry spray gun; the outer sleeve has an outer cavity, and an outer tube fixing seat is provided at one end of the outer cavity, and an outer tube opening is provided at the other end of the outer cavity; the built-in sleeve is limited within the outer cavity; one end of the built-in sleeve is detachably limited within the outer tube fixing seat, and the other end of the built-in sleeve is located at the outer tube opening; A powder delivery channel is formed between the outer tube and the inner tube sleeve; the outer tube sleeve is provided with a powder inlet that communicates with the powder delivery channel.

2. The spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 1, characterized in that, The outer tube cavity is provided with a tapered portion and a cylindrical portion along its length; The powder inlet is located at the tapered portion of the outer tube; the outer tube opening is located at the cylindrical portion of the outer tube. The inner diameter of the tapered portion of the outer tube gradually decreases towards the outer tube opening.

3. The spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 2, characterized in that, The inner tube extends out of the outer tube opening at the end furthest from the outer tube fixing seat.

4. The spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 1, characterized in that, Also includes: Spray gun mounting base; The spray gun mounting base is provided with a gun holder receiving cavity, which is used to receive the spray gun nozzle of the slurry spray gun; the gun holder receiving cavity is provided with a gun holder receiving opening for the spray gun nozzle to pass through; The spray gun mounting base is detachably mounted on the outer tube mounting base.

5. A spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 4, characterized in that, The gun mount cavity is provided with a screw passage, and the outer tube fixing seat is provided with an outer seat screw hole; The spray gun mounting base is installed on the outer tube mounting base by an outer mounting screw, which passes through the screw through-hole and is threaded into the outer mounting screw hole.

6. The spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 1, characterized in that, The built-in sleeve includes: a fixed sleeve and an inner branch sleeve; One end of the fixed sleeve is connected to one end of the inner branch pipe, the other end of the fixed sleeve is limited to the outer pipe fixing seat, and the other end of the inner branch pipe is located at the outer pipe opening.

7. A spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 6, characterized in that, The fixed sleeve and inner branch pipe are ceramic pipes.

8. A spray gun accessory for enhancing the texture effect of a slurry spray gun according to claim 6 or 7, characterized in that, The fixing sleeve is bonded to the inner branch pipe.

9. A spray gun accessory for enhancing the texture effect of a slurry spray gun according to any one of claims 1-7, characterized in that, Also includes: Inner tube fastening pin; The outer tube fixing seat has an outer fixing hole on its outer side; the inner tube fastening pin is located in the outer fixing hole; one end of the inner tube fastening pin extends into the interior of the outer tube fixing seat and abuts against the inner tube sleeve, so that one end of the inner tube sleeve is detachably located in the outer tube fixing seat.

10. A slurry spray gun, characterized in that, The spray gun accessory is equipped with any one of the claims 1-9 to enhance the texture effect of the slurry spray gun; The slurry spray gun is provided with a spray gun body and a spray gun nozzle. The spray gun nozzle is installed at the spray gun mouth of the spray gun body; the spray gun nozzle is confined within the inner cavity.