CN214487429U

CN214487429U - After mix formula has water to spout sand gun

Info

Publication number: CN214487429U
Application number: CN202023017964.7U
Authority: CN
Inventors: 张于贤; 贾立柱; 刘彬彬; 陈芳斌
Original assignee: Guotong Jingmei Technology Service Co ltd
Current assignee: Guotong Jingmei Technology Service Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-10-26
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses a post-mixing type water-spraying sand-blasting gun, which comprises a water inlet pipe, a sand mixer, a driving mechanism and a casing; a sand mulling chamber is arranged in the sand mulling piece; a runner is arranged in the sand mixer; the water inlet pipe, the sand inlet pipe and the flow passage are respectively communicated with the sand mixing chamber; the sand mixing piece is arranged on the shell and is relatively fixed with the shell; the sand mixer is rotatably connected with the sand mixing piece; the driving mechanism is connected to the machine shell and is suitable for driving the sand mixer to rotate around the axis of the sand mixer, and the outlet of the runner is eccentrically arranged on the axis of the sand mixer. The utility model discloses a back formula of mixing has water to spout sand spray gun, and its strike face is big, can effectively improve the cleaning efficiency greatly.

Description

After mix formula has water to spout sand gun

Technical Field

The utility model relates to a high pressure water jet cleaning equipment technical field especially relates to a back formula of mixing has water sandblast spray gun.

Background

The high-pressure water jet cleaning technology is characterized in that water is pressurized by a power pressurizing device to be sprayed at a high speed, and the high-speed kinetic energy of the water is utilized and matched with an abrasive to achieve the cleaning effect. The cleaning agent has the characteristics of high efficiency, obvious effect and the like on the surface of an object which is strong in adhesive force and extremely difficult to clean, and is incomparable with common manual cleaning. In addition, the cleaning mode has no dust in the whole process and extremely low cost, and is recognized as one of the most scientific, most economic and most environment-friendly cleaning modes.

The existing water sand blasting spray gun has the advantages that the nozzle is mostly circular or rectangular, the rectangular nozzle can form a fan-shaped jet flow shape and has larger striking force, but the striking face of the spray gun is limited, the cleaning efficiency is limited to a great extent, and the cleaning cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a back mixing type water sand-spraying gun, which has a large striking surface and can effectively and greatly improve the cleaning efficiency.

The purpose of the utility model is realized by adopting the following technical scheme:

a post-mix water-jet sand lance comprising: the device comprises a water inlet pipe, a sand mixing piece, a sand mixer, a driving mechanism and a shell; a sand mulling chamber is formed in the sand mulling piece; a runner is arranged in the sand mixer; the water inlet pipe, the sand inlet pipe and the flow passage are respectively communicated with the sand mixing chamber; the sand mixing piece is arranged on the shell and is relatively fixed with the shell; the sand mixer is rotatably connected to the sand mixing piece; the driving mechanism is connected to the machine shell and is suitable for driving the sand mixer to rotate around the axis of the sand mixer, and the outlet of the runner is eccentrically arranged on the axis of the sand mixer.

Further, the center line of the runner is parallel to and does not coincide with the axis of the sand mixer.

Further, the central line of the runner and the axis of the sand mixer are obliquely arranged.

Furthermore, a connecting piece is arranged between the water inlet pipe and the sand mixing piece, and two ends of the connecting piece are respectively in threaded connection with the water inlet pipe and the sand mixing piece.

Furthermore, the connecting piece with the one end that advances water piping connection is provided with the internal thread, the connecting piece with the one end that the mulling piece is connected is provided with the external screw thread.

Further, the sand inlet pipe is in threaded connection with the sand mixing piece.

Further, the entry of runner is the taper shape, advance the slope of sand pipe and set up on the mulling piece, advance the export of sand pipe and aim at the entry of runner, just advance the export direction of sand pipe with the entry of runner is located the generating line of the top and is parallel.

Furthermore, a nozzle is arranged between the water inlet pipe and the sand mixing chamber, the water inlet end of the nozzle is communicated with the water inlet pipe, and the water outlet end of the nozzle is positioned in the sand mixing chamber; the nozzle is in threaded connection with the connecting piece.

Furthermore, one end of the sand mixing piece, which is close to the sand mixer, is provided with a mounting hole; the end of the sand mixer, which is far away from the outlet of the runner, is an installation end, and the end of the sand mixer, which is close to the outlet of the runner, is a working end; the diameter of the mounting end is larger than that of the working end; the mounting end is mounted in the mounting hole, and a first sealing ring is arranged between the mounting end and the mounting hole; a gland is further arranged at one end of the sand mixing piece close to the sand mixer, and comprises a connecting sleeve and a limiting baffle ring; the connecting sleeve is in threaded connection with the outside of the mounting end, and a second sealing ring is arranged between the mounting end and the connecting sleeve; the limiting blocking ring is provided with a through hole, the diameter of the through hole is larger than that of the working end and smaller than that of the mounting end, and therefore the mounting end is axially limited between the limiting blocking ring and the bottom of the mounting hole.

Furthermore, the driving mechanism is a motor, a driving gear is arranged on an output shaft of the motor, a driven gear is arranged on the sand mixer, and the driving gear is suitable for being meshed with the driven gear; a driving gear cavity, a driven gear cavity and a motor cavity are arranged in the shell; the driving gear is positioned in the driving gear cavity, and the driven gear is positioned in the driven gear cavity; the motor is located the motor chamber, just be provided with the third sealing washer between motor and the casing.

Compared with the prior art, the beneficial effects of the utility model reside in that: the sand mixer rotatable coupling is in the mulling piece, and the export of mulling ware runner is eccentric to be set up in the axis of mulling ware, so when the mulling ware rotates, the area that the export of runner covered compares the area that the spout that fixes setting covered in prior art will be far more, promptly the utility model discloses back formula of mixing has water sandblast spray gun to wash the area in unit interval bigger, can effectual improvement cleaning efficiency.

Drawings

FIG. 1 is a perspective view of the post-mixing water-containing sand-blasting spray gun of the present invention;

FIG. 2 is an exploded view of the rear-mixing type water-jet sand-blasting gun with part of the casing removed;

FIG. 3 is a perspective view of the sand mulling of the present invention;

FIG. 4 is a perspective view of the sand mixer of the present invention;

fig. 5 is a perspective view of the gland of the present invention;

FIG. 6 is a cross-sectional view of the post-mix water-borne sand blasting gun of the present invention;

fig. 7 is a partial schematic view of fig. 6.

In the figure: 1. a water inlet pipe; 2. a sand inlet pipe; 3. mixing sand; 31. a sand mixing chamber; 32. mounting holes; 4. a sand mixer; 41. a flow channel; 42. an installation end; 43. a working end; 44. a first seal ring; 45. a second seal ring; 46. a driven gear; 5. a housing; 6. a motor; 61. a driving gear; 7. a connecting member; 71. an internal thread; 72. an external thread; 8. a nozzle; 9. a gland; 91. connecting sleeves; 92. a limit stop ring; 921. and a through hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-6, the post-mixing type water-containing sand blasting spray gun provided by the embodiment of the present invention is shown, and at least comprises a water inlet pipe 1, a sand inlet pipe 2, a sand mixing part 3, a sand mixer 4, a driving mechanism and a casing 5; a sand mulling chamber 31 is arranged in the sand mulling piece 3; a runner 41 is arranged in the sand mixer 4; the water inlet pipe 1, the sand inlet pipe 2 and the flow passage 41 are respectively communicated with the sand mixing chamber 31; the sand mulling 3 is arranged on the shell 5 and is relatively fixed with the shell 5; the sand mixer 4 is rotatably connected with the sand mixing part 3; the driving mechanism is connected to the machine shell 5 and is suitable for driving the sand mixer 4 to rotate around the axis of the sand mixer 4, and the outlet of the flow passage 41 is eccentrically arranged on the axis of the sand mixer 4. The outlet of the flow passage 41 may be rectangular to form a fan-shaped jet flow shape to ensure a striking force.

Specifically, the eccentric arrangement of the outlet of the flow passage 41 on the axis of the sand mixer 4 can be realized by the following two ways: 1. the centre line of the flow channel 41 is parallel and not coincident with the axis of the sand mixer 4 (not shown). 2. The center line of the flow path 41 is inclined with respect to the axis of the sand mixer 4 (see fig. 6). It should be noted that, by adopting the method 2, the outlet of the flow passage 41 is eccentrically arranged on the axis of the sand mixer 4, so that the space can be saved. The reason is as follows: the inclined arrangement of the flow channel 41 allows the sand mixer 4 to have a smaller volume without changing the size of the outlet of the flow channel 41.

In the above arrangement, the water inlet pipe 1 is used for introducing high-pressure water flow, the sand inlet pipe 2 is used for introducing sand, and the sand and the water flow are mixed in the sand mixing chamber 31, then enter the runner 41 and finally are ejected from the outlet of the runner 41; in addition, because sand mixer 4 rotatable coupling is in sand mixing element 3, and the export of 4 runners 41 of sand mixer sets up in the axis of sand mixer 4 eccentrically, so when actuating mechanism drive sand mixer 4 rotated, the area that the export of runner 41 covered was compared in prior art the area that immobilized spout covered will be much bigger, promptly the utility model discloses back mixed formula has water sandblast spray gun to wash the area in unit interval bigger, can effectual improvement cleaning efficiency. For a more clear explanation, referring now to fig. 7, where C1 is the axis of the sand mixer 4, C2 is the center line of the flow channel 41, P is the eccentric distance, L is the length of the flow channel 41, and now assuming that the width of the flow channel 41 is d, the single-shot efficiency η is given without the sand mixer 4 rotating₁L x d, and its single-shot efficiency in the case where the sand mixer 4 rotates

Ratio of efficiency

Adopt promptly the utility model discloses can effectual improvement cleaning efficiency.

In a preferred embodiment, a connecting piece 7 is arranged between the water inlet pipe 1 and the sand mixing element 3, and two ends of the connecting piece 7 are respectively in threaded connection with the water inlet pipe 1 and the sand mixing element 3. Through such a setting mode, the disassembly and assembly between the water inlet pipe 1 and the sand mixing piece 3 can be facilitated, so that the replacement and the maintenance of parts are facilitated. Specifically, the end of the connecting piece 7 connected with the water inlet pipe 1 is provided with an internal thread 71, the end of the connecting piece 7 connected with the sand mixing piece 3 is provided with an external thread 72, that is, the connecting piece 7 is in threaded connection with the water inlet pipe 1 through the internal thread 71 of the connecting piece 7, and the connecting piece 7 is in threaded connection with the sand mixing piece 3 through the external thread 72 of the connecting piece 7.

Preferably, the sand feed pipe 2 is screwed to the sand mullion 3. Through such a setting mode, the dismouting of sand pipe 2 can conveniently advance, and then the maintenance of being convenient for.

Preferably, the inlet of the runner 41 is conical, the sand inlet pipe 2 is obliquely arranged on the sand mixing part 3, the outlet of the sand inlet pipe 2 is aligned with the inlet of the runner 41, and the outlet direction of the sand inlet pipe 2 is parallel to the generatrix of the uppermost position of the inlet of the runner 41. By the mode, the sand entering from the sand inlet pipe 2 can smoothly enter the inlet of the flow channel 41, and meanwhile, the sand and the water flow can conveniently generate a turbulent flow state in the sand mixing chamber 31, so that the sand and the water flow are mixed more uniformly, and the cleaning effect is ensured.

Preferably, a nozzle 8 is arranged between the water inlet pipe 1 and the sand mixing chamber 31, the water inlet end of the nozzle 8 is communicated with the water inlet pipe 1, and the water outlet end of the nozzle 8 is positioned in the sand mixing chamber 31; the nozzle 8 is screwed to the connecting piece 7. High-speed jet flow can be generated under the action of the nozzle 8, the mixing effect of the sand and the water flow is further ensured, and the cleaning effect can be enhanced by the high-speed jet flow.

Preferably, one end of the sand mixing piece 3 close to the sand mixer 4 is provided with a mounting hole 32; the end of the sand mixer 4 far away from the outlet of the runner 41 is a mounting end 42, and the end of the sand mixer 4 near the outlet of the runner 41 is a working end 43; the diameter of the mounting end 42 is greater than the diameter of the working end 43; the mounting end 42 is mounted in the mounting hole 32, and a first sealing ring 44 is disposed between the mounting end 42 and the mounting hole 32, specifically, a mounting groove may be formed on the mounting end 42, and the first sealing ring 44 is disposed in the mounting groove; a gland 9 is also arranged at one end of the sand mixing piece 3 close to the sand mixer 4, and the gland 9 comprises a connecting sleeve 91 and a limit baffle ring 92; the connecting sleeve 91 is in threaded connection with the outside of the mounting end 42, and a second sealing ring 45 is arranged between the mounting end 42 and the connecting sleeve 91; the limit stop ring 92 is provided with a through hole 921, and the diameter of the through hole 921 is larger than the diameter of the working end 43 and smaller than the diameter of the mounting end 42, so as to axially limit the mounting end 42 between the limit stop ring 92 and the bottom of the mounting hole 32. Through the sealing effect of first sealing washer 44 and second sealing washer 45, can avoid rivers to spill from casing 5, guaranteed the utility model discloses back formula of mixing has water to spray the reliability that is afraid of the spray gun and uses.

Preferably, the driving mechanism is a motor 6, a driving gear 61 is arranged on an output shaft of the motor 6, a driven gear 46 is arranged on the sand mixer 4, and the driving gear 61 is suitable for being meshed with the driven gear 46. Specifically, the output shaft of the motor 6 and the driving gear 61 may be connected in a "D" shape, and the sand mixer 4 and the driven gear 46 may also be connected in a "D" shape. A driving gear 61 cavity, a driven gear 46 cavity and a motor 6 cavity are arranged in the machine shell 5; the driving gear 61 is positioned in the cavity of the driving gear 61, and the driven gear 46 is positioned in the cavity of the driven gear 46; the motor 6 is located in the cavity of the motor 6, and a third sealing ring (not shown) is arranged between the motor 6 and the casing 5. Through setting up the third sealing washer, can avoid rivers to leak into 6 intracavity of motor and cause the damage to motor 6.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a back formula of mixing has water sandblast spray gun which characterized in that includes: the device comprises a water inlet pipe, a sand mixing piece, a sand mixer, a driving mechanism and a shell; a sand mulling chamber is formed in the sand mulling piece; a runner is arranged in the sand mixer; the water inlet pipe, the sand inlet pipe and the flow passage are respectively communicated with the sand mixing chamber; the sand mixing piece is arranged on the shell and is relatively fixed with the shell; the sand mixer is rotatably connected to the sand mixing piece; the driving mechanism is connected to the machine shell and is suitable for driving the sand mixer to rotate around the axis of the sand mixer, and the outlet of the runner is eccentrically arranged on the axis of the sand mixer.

2. The post-mix water-borne abrasive blasting gun of claim 1, wherein: the center line of the runner is parallel to and does not coincide with the axis of the sand mixer.

3. The post-mix water-borne abrasive blasting gun of claim 1, wherein: the central line of the flow channel and the axis of the sand mixer are obliquely arranged.

4. The post-mix water-borne abrasive blasting gun according to any one of claims 1 to 3, wherein: the inlet tube with be provided with the connecting piece between the mulling piece, the both ends of connecting piece respectively with inlet tube and mulling piece threaded connection.

5. The post-mix water-borne abrasive blasting gun according to claim 4, wherein: the connecting piece with the one end of advancing water piping connection is provided with the internal thread, the connecting piece with the one end that the mulling part is connected is provided with the external screw thread.

6. The post-mix water-borne abrasive blasting gun of claim 1, wherein: the sand inlet pipe is in threaded connection with the sand mixing piece.

7. The post-mix water-borne abrasive blasting gun of claim 6, wherein: the entry of runner is conical, advance the slope of sand pipe and set up on the mulling piece, advance the export of sand pipe and aim at the entry of runner, just advance the export direction of sand pipe with the entry of runner is located the generating line of the top and is parallel.

8. The post-mix water-borne abrasive blasting gun according to claim 5, wherein: a nozzle is arranged between the water inlet pipe and the sand mixing chamber, the water inlet end of the nozzle is communicated with the water inlet pipe, and the water outlet end of the nozzle is positioned in the sand mixing chamber; the nozzle is in threaded connection with the connecting piece.

9. The post-mix water-borne abrasive blasting gun of claim 1, wherein: one end of the sand mixer, which is close to the sand mixer, is provided with a mounting hole; the end of the sand mixer, which is far away from the outlet of the runner, is an installation end, and the end of the sand mixer, which is close to the outlet of the runner, is a working end; the diameter of the mounting end is larger than that of the working end; the mounting end is mounted in the mounting hole, and a first sealing ring is arranged between the mounting end and the mounting hole; a gland is further arranged at one end of the sand mixing piece close to the sand mixer, and comprises a connecting sleeve and a limiting baffle ring; the connecting sleeve is in threaded connection with the outside of the mounting end, and a second sealing ring is arranged between the mounting end and the connecting sleeve; the limiting blocking ring is provided with a through hole, the diameter of the through hole is larger than that of the working end and smaller than that of the mounting end, and therefore the mounting end is axially limited between the limiting blocking ring and the bottom of the mounting hole.

10. The post-mix water-borne abrasive blasting gun of claim 1, wherein: the driving mechanism is a motor, a driving gear is arranged on an output shaft of the motor, a driven gear is arranged on the sand mixer, and the driving gear is suitable for being meshed with the driven gear; a driving gear cavity, a driven gear cavity and a motor cavity are arranged in the shell; the driving gear is positioned in the driving gear cavity, and the driven gear is positioned in the driven gear cavity; the motor is located the motor chamber, just be provided with the third sealing washer between motor and the casing.