Spray gun assembly of sand blasting machine

Abstract

The utility model relates to the technical field of sand blasting equipment, and discloses a spray gun assembly of a sand blasting machine, which comprises a spray gun main body, a gas pipe joint, a sand pipe joint, a fixing piece and a connector I. The rear end of the spray gun main body is fixedly connected with the connector I. A filter pipe fitting is arranged on the rear side of the connector I. The front end of the filter pipe fitting is fixedly connected with a connecting block. A placing groove is formed in the front side face of the connecting block, first external threads are formed in the outer wall of the connecting block, first internal threads are formed in the inner wall of the filtering pipe fitting, a vertically-through connecting hole is formed in the bottom of the placing groove, a filtering net is arranged in the placing groove, and third internal threads are formed in the inner wall of the first connector; the connecting block is in threaded connection with the interior of the connector I through matching of the external thread I and the internal thread III, and a boron carbide nozzle is arranged on the rear side of the filtering pipe fitting. According to the utility model, the occurrence of blockage of the boron carbide nozzle is effectively reduced, and the abrasive can be continuously and stably sprayed to the surface of a workpiece, so that the sand blasting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand blasting equipment technical field especially relates to a sand blasting machine's spray gun subassembly. BACKGROUND

[0002] In the field of sand blasting, sand blasting machine as a kind of efficient, widely used surface treatment equipment, its performance directly influences processing effect and production efficiency. One of the core components of sand blasting machine is spray gun subassembly, which is responsible for accelerating and spraying abrasive (such as sand) to the surface of workpiece to be processed to achieve the purpose of cleaning, strengthening or changing surface characteristics. However, during long time use, the spray gun subassembly of sand blasting machine, especially the nozzle part, is often blocked due to impurities in abrasive, uneven particle size and other factors, which not only affects sand blasting efficiency, but also may damage the structure of spray gun, increase maintenance cost, and even cause production safety accidents.

[0003] Traditional sand blasting machine spray gun design often focuses on improving jet pressure and range, but lacks consideration in terms of anti-clogging. Although there are some improved designs on the market, such as using more wear-resistant nozzle material, increasing nozzle diameter or improving nozzle shape to reduce the risk of clogging, these measures still cannot fundamentally solve the problem of nozzle clogging.

[0004] Therefore, we propose a spray gun subassembly of sand blasting machine. SUMMARY

[0005] The utility model mainly solves the technical problem of prior art, provides a spray gun subassembly of sand blasting machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme, a spray gun subassembly of sand blasting machine, including spray gun main part, gas pipe joint, sand pipe joint, fixed part and connecting head one, the rear end of spray gun main part is fixedly connected with connecting head one, the rear side of connecting head one is provided with filter pipe spare, the front end of filter pipe spare is fixedly connected with connecting block, the front side surface of connecting block is provided with placing groove, the outer wall of connecting block is provided with outer thread one, the inner wall of filter pipe spare is provided with inner thread one, the bottom of placing groove is provided with the connecting hole that passes up and down, the inside of placing groove is provided with filter screen, the inner wall of connecting head one is provided with inner thread three, connecting block is screw connected in connecting head one through the cooperation of outer thread one and inner thread three, the rear side of filter pipe spare is provided with boron carbide nozzle, the front end of boron carbide nozzle is fixedly connected with connecting head five, the outer wall of connecting head five is provided with outer thread three, the front side surface of connecting head five is fixedly connected with connecting head two, the outer wall of connecting head two is provided with outer thread two, connecting head two is screw connected in filter pipe spare through outer thread two and inner thread one.

[0007] Further, the outer wall of the boron carbide nozzle is sleeved with a nozzle rubber sleeve, a connecting head three is fixedly connected to the front end of the nozzle rubber sleeve, an inner thread two is formed in the inner wall of the connecting head three, and the connecting head three is threadedly connected to a connecting head five through cooperation of the inner thread two and an outer thread three.

[0008] Further, an installation hole penetrating up and down is formed in the bottom of the outer wall of the connecting head one.

[0009] Further, a connecting hole penetrating up and down is formed in the bottom inner wall of the connecting block, and the connecting hole corresponds to the installation hole.

[0010] Further, a sand collecting pipe is detachably installed on the bottom of the outer wall of the connecting head one, and the upper end of the sand collecting pipe is communicated with the placing groove through the connecting hole and the installation hole.

[0011] Further, a sealing cover is threadedly connected to the bottom of the sand collecting pipe, a connecting head four is fixedly connected to the top of the sealing cover, and an outer thread four is formed in the outer wall of the connecting head four.

[0012] Further, a gas pipe joint is detachably installed on the front end of the spray gun body, and a sand pipe joint is detachably installed on the bottom of the outer wall of the spray gun body.

[0013] Further, a fixing part is fixedly connected to the top of the spray gun body, and a fixing hole penetrating left and right is formed in the upper end of the fixing part.

[0014] The utility model provides a spray gun assembly of sand blasting machine.

[0015] 1. The spray gun assembly of sand blasting machine, when using, through mutual cooperation between the spray gun body, connecting head one, filter pipe spare, filter screen, placing groove, outer thread one, inner thread one, connecting block, inner thread three, outer thread two, connecting head two, boron carbide nozzle, outer thread three, connecting head five, nozzle rubber sleeve, inner thread two, connecting head three and other components, when using the device, first, filter screen is placed in the placing groove of connecting block, then, connecting block is threadedly installed in connecting head one, then, connecting head two is threadedly connected in filter pipe spare, finally, nozzle rubber sleeve is sleeved on the outer wall of boron carbide nozzle, connecting head three is threadedly connected in connecting head five through cooperation of inner thread two and outer thread three, in the use, filter screen can filter the impurity in abrasive, can ensure that the particle size is even simultaneously, thereby effectively reduce the occurrence of boron carbide nozzle blockage, ensure that abrasive can continuously, stably spray to the workpiece surface, thereby improve the efficiency of sand blasting treatment.

[0016] 2. The sand blasting machine gun assembly, when in use, through the mutual cooperation between the spray gun body, connecting head one, filter screen, placement tank, connecting block, connecting hole, mounting hole, sand collecting pipe, connecting head four, external thread four, sealing cover and other components, in the device working process, the impurities and large particles in the sand blasting can be filtered out through the setting of the filter screen, and the filtered impurities and large particles are retained in the placement tank, and flow into the sand collecting pipe through the connecting hole and the mounting hole for centralized collection, when the sand collecting pipe is full, the sealing cover is unscrewed, and the impurities and sand particles in the sand collecting pipe are poured into the designated position, which can facilitate the cleaning of impurities and improve the practicability.

[0017] 3. The sand blasting machine gun assembly, when in use, through the mutual cooperation between the spray gun body, connecting head one, filter screen, placement tank, connecting block and other components, in the long-term use process of the spray gun assembly, the structure of the filter screen can be damaged, at this time, the connecting block can be unscrewed from the connecting head one, then the damaged filter screen can be taken out from the placement tank, a new filter screen can be replaced, and the connecting block can be screw-mounted in the connecting head one again, so that the replacement of the filter screen is facilitated, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The structures, proportions, sizes and the like shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical substantial significance to limit the implementation conditions of the utility model.

[0019] Figure 1 It is a whole three-dimensional structure schematic view;

[0020] Figure 2 It is an exploded view schematic view;

[0021] Figure 3 It is a spray gun body cross-sectional structure schematic view;

[0022] Figure 4 It is a sand collecting pipe and sealing cover structure schematic view.

[0023] LEGEND:

[0024] 1. Spray gun body; 2. Gas pipe joint; 3. Sand pipe joint; 4. Fixing piece; 5. Connecting head one; 6. Nozzle rubber sleeve; 7. Filter pipe; 8. Sand collecting pipe; 9. Sealing cover; 10. Filter screen; 11. Placement tank; 12. Connecting hole; 13. External thread one; 14. Internal thread one; 15. Boron carbide nozzle; 16. Connecting head two; 17. External thread two; 18. External thread three; 19. Internal thread two; 20. Connecting head three; 21. Internal thread three; 22. Mounting hole; 23. Connecting head four; 24. External thread four; 25. Connecting block; 26. Connecting head five. DETAILED DESCRIPTION

[0025] A blast gun assembly for a sandblaster, such as Figures 1-4The utility model discloses a sand collecting gun assembly, as shown, including the lance main part 1, the gas pipe joint 2, the sand pipe joint 3, the fixed part 4 and the connecting head one 5, the rear end fixed connection of the lance main part 1 has the connecting head one 5, the rear side of connecting head one 5 is provided with filter pipe spare 7, the front end fixed connection of filter pipe spare 7 has the connecting block 25, the front side of connecting block 25 is seted up and placed the groove 11, the outer wall of connecting block 25 is seted up and opened the external thread one 13, the inner wall of filter pipe spare 7 is seted up and opened the internal thread one 14, the bottom of placed the groove 11 is seted up and opened the connection hole 12 that goes up and down and penetrates, the inside of placed the groove 11 is provided with filter screen 10, the inner wall of connecting head one 5 is seted up and opened the internal thread three 21, and connecting block 25 is connected in connecting head one 5 through the cooperation of external thread one 13 and internal thread three 21, the rear side of filter pipe spare 7 is provided with boron carbide nozzle 15, and the front end fixed connection of boron carbide nozzle 15 has the connecting head five 26, and the outer wall of connecting head five 26 is seted up and opened the external thread three 18, and the front side of connecting head two 16 is fixedly connected with connecting head two 16, and the outer wall of connecting head two 16 is seted up and opened the external thread two 17, and connecting head two 16 is connected in filter pipe spare 7 through the external thread two 17 and internal thread one 14, and the outer wall of boron carbide nozzle 15 is seted up and opened the nozzle rubber bushing 6, and the front end fixed connection of nozzle rubber bushing 6 has the connecting head three 20, and the inner wall of connecting head three 20 is seted up and opened the internal thread two 19, and connecting head three 20 is connected on connecting head five 26 through the cooperation of internal thread two 19 and external thread three 18, when using, through the mutual cooperation between the lance main part 1, connecting head one 5, filter screen 10, placed the groove 11, connecting block 25 and other components, the structure of filter screen 10 can be damaged during the long-term use of the sand collecting gun assembly, at this time, connecting block 25 can be screwed out of connecting head one 5, then the damaged filter screen 10 is taken out of placed the groove 11, a new filter screen 10 is replaced, and connecting block 25 is rethreaded and installed in connecting head one 5, so that the filter screen 10 is convenient to replace, the working efficiency is improved, the bottom of the outer wall of connecting head one 5 is seted up and opened the installation hole 22 that goes up and down and penetrates, the bottom inner wall of connecting block 25 is seted up and opened the connection hole 12 that goes up and down and penetrates, the connection hole 12 and the installation hole 22 correspond to each other, and the outer wall bottom of connecting head one 5 is detachably installed with sand collecting pipe 8, and the upper end of sand collecting pipe 8 is connected with placed the groove 11 through the connection hole 12 and the installation hole 22, when using, through the mutual cooperation between the lance main part 1, connecting head one 5, filter pipe spare 7, filter screen 10, placed the groove 11, external thread one 13, internal thread one 14, connecting block 25, internal thread three 21, external thread two 17, connecting head two 16, boron carbide nozzle 15, external thread three 18, connecting head five 26, nozzle rubber bushing 6, internal thread two 19, connecting head three 20 and other components, when using the device, first, filter screen 10 is placed in placed the groove 11 of connecting block 25, then connecting block 25 is threaded and installed in connecting head one 5, then connecting head two 16 is threaded and connected in filter pipe spare 7, and finally, nozzle rubber bushing 6 is sleeved on the outer wall of boron carbide nozzle 15,The connector three 20 is threadedly connected on the connector five 26 through the cooperation of the internal thread two 19 and the external thread three 18, in use, the filter screen 10 can filter the impurities in the abrasive, and can ensure the uniform size of the particles, thereby effectively reducing the occurrence of the boron carbide nozzle 15 blockage, ensuring that the abrasive can be continuously and stably sprayed to the workpiece surface, thereby improving the efficiency of the sand blasting treatment, the bottom of the sand collecting pipe 8 is threadedly connected with the sealing cover 9, the top of the sealing cover 9 is fixedly connected with the connector four 23, the outer wall of the connector four 23 is provided with the external thread four 24, in use, through the cooperation between the spray gun body 1, the connector one 5, the filter screen 10, the placing groove 11, the connecting block 25, the connecting hole 12, the mounting hole 22, the sand collecting pipe 8, the connector four 23, the external thread four 24 and the sealing cover 9, during the working process of the device, the impurities and large particles in the sand blasting can be filtered out through the filter screen 10, and the filtered impurities and large particles are retained in the placing groove 11, flow into the sand collecting pipe 8 through the connecting hole 12 and the mounting hole 22, and are collected, when the sand collecting pipe 8 is full, the sealing cover 9 is unscrewed, and the impurities and sand particles in the sand collecting pipe 8 are poured into a specified position, so that the impurities can be conveniently cleaned, and the practicability is improved, the front end of the spray gun body 1 is detachably provided with the air pipe joint 2, the bottom of the outer wall of the spray gun body 1 is detachably provided with the sand pipe joint 3, the top of the spray gun body 1 is fixedly connected with the fixing piece 4, and the upper end of the fixing piece 4 is provided with the left-right penetrating fixing hole.

[0026] The utility model discloses a working principle: when using, through the mutual cooperation between the component between the setting spray gun main body 1, connecting head no. 5, filter pipe spare 7, filter screen 10, placing groove 11, outer thread no. 13, inner thread no. 14, connecting block 25, inner thread no. 21, outer thread no. 17, connecting head no. 16, boron carbide nozzle 15, outer thread no. 18, connecting head no. 26, nozzle rubber bush 6, inner thread no. 19, connecting head no. 20 etc., when using the device, first, filter screen 10 is placed in the placing groove 11 that connecting block 25 opens, then, connecting block 25 is installed in connecting head no. 5 with screw thread, again, connecting head no. 16 is connected in filter pipe spare 7 with screw thread, finally, nozzle rubber bush 6 is covered on the outer wall of boron carbide nozzle 15, connecting head no. 20 is connected on connecting head no. 26 with screw thread through the cooperation of inner thread no. 19 and outer thread no. 18, in the use process, filter screen 10 can filter the impurity in abrasive, can ensure the evenness of particle size simultaneously, thereby effectively reduces the occurrence of boron carbide nozzle 15 blockage, ensures that abrasive can continuously, stably spray to the workpiece surface, thereby improve the efficiency of sand blasting treatment, through the mutual cooperation between the component between the setting spray gun main body 1, connecting head no. 5, filter screen 10, placing groove 11, connecting block 25, connecting hole 12, mounting hole 22, sand collecting pipe 8, connecting head no. 23, outer thread no. 24, sealing cover 9 etc., in the device working process, through the setting of filter screen 10, the impurity and large particle sand grain in sand blasting can be filtered, and the filtered impurity and large particle sand grain are retained in placing groove 11, and the impurity and sand grain in sand collecting pipe 8 flow into the concentrated collection through connecting hole 12 and mounting hole 22, when sand collecting pipe 8 is full, unthreads sealing cover 9, and the impurity and sand grain in sand collecting pipe 8 are poured into the specified position, so that the cleaning of impurity is convenient, and the practicability is improved, through the mutual cooperation between the component between the setting spray gun main body 1, connecting head no. 5, filter screen 10, placing groove 11, connecting block 25 etc., in the long-term use process of the spray gun assembly, the structure of filter screen 10 can be damaged, then connecting block 25 is screwed out of connecting head no. 5, and then the damaged filter screen 10 is taken out from placing groove 11, and the new filter screen 10 is replaced, and then connecting block 25 is re-installed in connecting head no. 5 with screw thread, so that the replacement of filter screen 10 is convenient, and the working efficiency is improved.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The skilled person in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A blasting gun assembly of a sand blasting machine, comprising a blasting gun body (1), a gas pipe joint (2), a sand pipe joint (3), a fixing member (4) and a connecting head (5), characterized in that: The rear end of the lance body (1) is fixedly connected with a connector one (5), the rear side of the connector one (5) is provided with a filter pipe (7), the front end of the filter pipe (7) is fixedly connected with a connecting block (25), the front side of the connecting block (25) is provided with a placing groove (11), the outer wall of the connecting block (25) is provided with an outer thread one (13), the inner wall of the filter pipe (7) is provided with an inner thread one (14), the bottom of the placing groove (11) is provided with a connecting hole (12) penetrating up and down, the inside of the placing groove (11) is provided with a filter screen (10), the inner wall of the connector one (5) is provided with an inner thread three (21), the connecting block (25) is screw-connected in the connector one (5) through the cooperation of the outer thread one (13) and the inner thread three (21), the rear side of the filter pipe (7) is provided with a boron carbide nozzle (15), the front end of the boron carbide nozzle (15) is fixedly connected with a connector five (26), the outer wall of the connector five (26) is provided with an outer thread three (18), the front side of the connector five (26) is fixedly connected with a connector two (16), the outer wall of the connector two (16) is provided with an outer thread two (17), the connector two (16) is screw-connected in the filter pipe (7) through the outer thread two (17) and the inner thread one (14).

2. A blast gun assembly for a sandblaster as defined in claim 1, wherein: The outer wall of the boron carbide nozzle (15) is sleeved with a nozzle rubber sleeve (6), the front end of the nozzle rubber sleeve (6) is fixedly connected with a connector three (20), the inner wall of the connector three (20) is provided with an inner thread two (19), the connector three (20) is screw-connected on the connector five (26) through the cooperation of the inner thread two (19) and the outer thread three (18).

3. A blast gun assembly for a sandblaster as defined in claim 1, wherein: The outer wall bottom of the connector one (5) is provided with a mounting hole (22) penetrating up and down.

4. A blasting gun assembly for a sandblaster as defined in claim 3, wherein: The bottom inner wall of the connecting block (25) is provided with a connecting hole (12) penetrating up and down, and the connecting hole (12) corresponds to the mounting hole (22).

5. A blast gun assembly for a sandblaster as defined in claim 1, wherein: The outer wall bottom of the connector one (5) is detachably provided with a sand collecting pipe (8), and the upper end of the sand collecting pipe (8) is communicated with the placing groove (11) through the connecting hole (12) and the mounting hole (22).

6. A blasting gun assembly for a blasting machine according to claim 5, wherein: The bottom of the sand collecting pipe (8) is screw-connected with a sealing cover (9), and the top of the sealing cover (9) is fixedly connected with a connector four (23), and the outer wall of the connector four (23) is provided with an outer thread four (24).

7. A blast gun assembly for a sandblaster as defined in claim 1, wherein: The front end of the lance body (1) is detachably provided with an air pipe joint (2), the outer wall bottom of the lance body (1) is detachably provided with a sand pipe joint (3), and the top of the lance body (1) is fixedly connected with a fixing piece (4), and the upper end of the fixing piece (4) is provided with a fixing hole penetrating left and right.

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