CN212733276U

CN212733276U - Portable cleaning gun

Info

Publication number: CN212733276U
Application number: CN202021451684.4U
Authority: CN
Inventors: 舒忠凑
Original assignee: Individual
Current assignee: Yongkang Junpu Tools Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-19
Anticipated expiration: 2030-07-21

Abstract

The utility model belongs to the technical field of burnisher, refer in particular to a portable washing rifle, including the pump body and be used for driving the power device of pump body motion, be provided with the piston chamber in the pump body, be provided with the piston in the piston chamber, inlet tube and the outlet pipe of connecting on the piston chamber, be provided with the overflow pipe between outlet pipe and the inlet tube, be provided with the overflow valve on the overflow pipe, in the washing rifle use, when the pressure differential in outlet pipe and the inlet tube exceeded the overflow valve setting value, liquid in the outlet pipe passed through overflow pipe and overflow valve entering in the inlet tube, the utility model aims at providing a simple structure, portable washing rifle that easy to assemble maintenance and security height are high.

Description

Portable cleaning gun

Technical Field

The utility model belongs to the technical field of burnisher, refer in particular to a portable cleaning gun.

Background

The cleaning gun is a cleaning device which enables a pump body to generate high-pressure water to wash the surface of an object through a power device, the impact force of the water is larger than the adhesive force between dirt and the surface of the object, and the dirt can be peeled and washed away by the high-pressure water, so that the surface of the object is cleaned. Because the cleaning gun needs to generate high-pressure water flow, most of the water outlet channels of the cleaning gun are provided with water outlets with smaller diameters, and the situation that the water outlets are blocked by sundries to cause higher water pressure in the water outlet channels is easy to occur, so that the water outlet pipeline is broken and even a user is injured.

Disclosure of Invention

The utility model aims at providing a simple structure, easy to assemble maintenance and high portable cleaning gun of security.

The purpose of the utility model is realized like this:

the utility model provides a portable cleaning gun, includes the pump body and is used for driving the power device of pump body motion, is provided with the piston chamber in the pump body, is provided with the piston in the piston chamber, inlet tube and the outlet pipe of connecting on the piston chamber, be provided with the overflow pipe between outlet pipe and the inlet tube, be provided with the overflow valve on the overflow pipe, during the cleaning gun use, when the pressure differential in outlet pipe and the inlet tube exceeded the overflow valve setting value, liquid in the outlet pipe passed through overflow pipe and overflow valve entering in the inlet tube.

Preferably, the side wall of the water inlet pipe is provided with a mounting hole for mounting the overflow valve, the water inlet pipe is detachably provided with a connecting pipe, the connecting pipe is located in the extending direction of the mounting hole, the depth of the mounting hole is larger than the distance between the overflow valve and the connecting pipe, and the overflow valve is prevented from being separated from the mounting hole.

Preferably, a groove for liquid to pass through is formed in the side wall of the connecting pipe, and when the overflow valve abuts against the connecting pipe, the liquid enters the water inlet pipe through the groove.

Preferably, the overflow valve comprises a shell, a channel for liquid to pass through is further arranged in the shell, and a sealing ball of the channel and a return spring for driving the sealing ball to return are arranged in the shell.

Preferably, a water inlet one-way valve is arranged between the piston cavity and the water inlet pipe, a water outlet one-way valve is arranged between the piston cavity and the water outlet pipe, and liquid in the water inlet pipe enters the piston cavity through the water inlet one-way valve and then enters the water outlet pipe through the water outlet one-way valve in the use process of the cleaning gun.

Preferably, the pump body is provided with an eccentric block for driving the piston to move and an elastic piece for driving the piston to abut against the eccentric block, and the power device drives the eccentric block to move so as to drive the piston to reciprocate in the piston cavity.

Preferably, the pump body is provided with a mounting seat, and the eccentric block is detachably arranged on the mounting seat.

Preferably, the eccentric block is provided with a positioning hole, and the mounting seat is provided with a positioning part matched with the positioning hole.

Preferably, the mounting seat is provided with a positioning surface matched with the end part of the eccentric block, the eccentric block is provided with two groups of mounting surfaces which are parallel to each other, the positioning surface is obliquely arranged relative to the sliding direction of the piston, one group of mounting surfaces abuts against the positioning surface, and the piston abuts against the other group of mounting surfaces.

Preferably, the end of the piston is provided with an arc-shaped abutting part, and when the eccentric block moves, the abutting part slides on the abutting block.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the overflow pipe is arranged between the water outlet pipe and the water inlet pipe, the overflow valve is arranged on the overflow pipe, when the pressure difference between the water outlet pipe and the water inlet pipe exceeds the set value of the overflow valve in the use process of the cleaning gun, the liquid in the water outlet pipe enters the water inlet pipe through the overflow pipe and the overflow valve, the arrangement of the overflow valve is favorable for avoiding the overlarge pressure in the water outlet pipe, thereby improving the safety of the cleaning gun, and the overflow valve is connected with the water inlet pipe and the water outlet pipe, so that the liquid entering the overflow valve can not flow around, the use by a user is convenient, and; the side wall of the water inlet pipe is provided with a mounting hole for mounting an overflow valve, the water inlet pipe is detachably provided with a connecting pipe, the connecting pipe is positioned in the extending direction of the mounting hole, the overflow valve is convenient to mount and replace, the depth of the mounting hole is larger than the distance between the overflow valve and the connecting pipe, the overflow valve is prevented from being accidentally separated from the mounting hole, and the service life of the cleaning gun is prolonged; the side wall of the connecting pipe is provided with a groove for liquid to pass through, when the overflow valve is abutted on the connecting pipe, the liquid enters the water inlet pipe through the groove, and the overflow valve is prevented from blocking the connecting pipe, so that the normal use of the cleaning gun is prevented from being influenced.

2. The eccentric block used for driving the piston to move is arranged in the pump body, the driving piston abuts against the elastic piece on the eccentric block tightly, the power device drives the eccentric block to move, so that the driving piston reciprocates in the piston cavity, and the eccentric block drives the piston to reciprocate, so that the structure is simple, and the assembly and the maintenance are convenient; be provided with the mount pad on the pump body, eccentric block can dismantle the setting on the mount pad, makes things convenient for the production of spare part, and eccentric block is easy wearing and tearing after long-term the use, and the producer can use wear-resisting material preparation eccentric block to the life of extension cleaning gun, and the user can be maintained through changing eccentric block, saves cost of maintenance.

3. The eccentric block is provided with a positioning hole, the mounting seat is provided with a positioning part matched with the positioning hole, the cylinder is convenient to produce, and the positioning hole and the positioning part are arranged to be beneficial to positioning and mounting of the eccentric block, so that the eccentric block is prevented from vibrating due to the installation error of the eccentric block in the use process of the cleaning gun, and the service life of the cleaning gun is further influenced; the eccentric block is characterized in that a positioning surface matched with the end part of the eccentric block is arranged on the mounting seat, two groups of mounting surfaces which are parallel to each other are arranged on the eccentric block, the sliding direction of the positioning surface relative to the piston is obliquely arranged, one group of mounting surfaces abuts against the positioning surface, the piston abuts against the other group of mounting surfaces, the structure is simple, the eccentric block is convenient to produce, the end part of the piston is provided with an arc abutting part, and when the eccentric block moves, the abutting part slides on the abutting block, so that the eccentric block is prevented from being scratched by the piston in the use process, and the eccentric block and the piston are seriously abraded in the use process.

4. Be provided with the check valve that intakes between piston chamber and the inlet tube, be provided with out the water check valve between piston chamber and the outlet pipe, in the washing rifle use, during liquid in the inlet tube got into the piston chamber through the check valve that intakes, then got into the outlet pipe through a water check valve, the check valve that intakes does benefit to with being provided with of a water check valve and avoids the unexpected backward flow of liquid, is convenient for improve the pressure of liquid in the outlet pipe.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged view at B in fig. 1.

In the figure: 1-a housing; 2-a power plant; 3-a transmission part; 4-a pump body; 5-connecting pipe; 6-overflow valve; 7-water outlet one-way valve; 8-water inlet one-way valve; 41-water outlet pipe; 42-water inlet pipe; 43-a piston cavity; 44-an overflow pipe; 45-a piston; 46-a mounting seat; 47-eccentric mass; 48-mounting holes; 51-a groove; 61-a housing; 62-sealing the marble; 63-a return spring; 64-an auxiliary rod; 451-a fastening part; 461-positioning part; 462-a locating surface; 471-locating holes; 472-mounting surface.

Detailed Description

The invention will be further described in the following with reference to the accompanying drawings in which:

referring to fig. 1 to 3, a portable cleaning gun, a housing 1, a pump body 4 and a power device 2 for driving the pump body 4 to move are arranged in the housing 1, a transmission member 3 is arranged between the power device 2 and the pump body 4, in this embodiment, the power device 2 is a driving motor, a piston cavity 43 is arranged in the pump body 4, a piston 45 is arranged in the piston cavity 43, a water inlet pipe 42 and a water outlet pipe 41 are connected to the piston cavity 43, an overflow pipe 44 is arranged between the water outlet pipe 41 and the water inlet pipe 42, an overflow valve 6 is arranged on the overflow pipe 44, when a pressure difference between the water outlet pipe 41 and the water inlet pipe 42 exceeds a set value of the overflow valve 6 during the use of the cleaning gun, liquid in the water outlet pipe 41 enters the water inlet pipe 42 through the overflow pipe 44 and the overflow valve 6, the overflow valve 6 is arranged to avoid an excessive, and because the overflow valve 6 is connected with the water inlet pipe 42 and the water outlet pipe 41, the liquid entering the overflow valve 6 cannot flow around, thereby being convenient for users to use and being beneficial to saving water resources.

The overflow valve 6 comprises a housing 61, a channel for liquid to pass through is arranged in the housing 61, a sealing ball 62 of the channel and a return spring 63 for driving the sealing ball 62 to reset are further arranged in the housing 61, the housing 61 comprises an upper cover and a lower cover which are fixedly connected, an auxiliary rod 64 is arranged in the housing 61, the return spring 63 abuts against the auxiliary rod 64, and the auxiliary rod 64 drives the sealing ball 62 to seal the channel.

In this embodiment, be provided with the mounting hole 48 that is used for installing overflow valve 6 on the inlet tube 42 lateral wall, can dismantle on the inlet tube 42 and be provided with connecting pipe 5, connecting pipe 5 is located the extending direction of mounting hole 48, makes things convenient for the installation of overflow valve 6 to change, and the mounting hole 48 degree of depth is greater than the distance between overflow valve 6 and the connecting pipe 5, avoids overflow valve 6 and 48 unexpected breaks away from of mounting hole, is favorable to prolonging the life of cleaning gun, preferably be provided with the recess 51 that supplies liquid to pass through on the connecting pipe 5 lateral wall, when overflow valve 6 supports on connecting pipe 5, liquid passes through recess 51 and gets into in the inlet tube 42, thereby avoids overflow valve 6 to block up connecting pipe 5 and influence the normal use.

Be provided with the eccentric block 47 that is used for drive piston 45 motion in the pump body 4, and drive piston 45 supports the elastic component of tight on eccentric block 47, power device 2 drive eccentric block 47 motion, thereby drive piston 45 reciprocating motion in piston chamber 43, through eccentric block 47 drive piston 45 reciprocating motion, moreover, the steam generator is simple in structure, convenient equipment is maintained, be provided with mount pad 46 on the pump body 4 in this embodiment, eccentric block 47 can be dismantled and set up on mount pad 46, make things convenient for the production of spare part, eccentric block 47 is easy wearing and tearing after long-term use, producers can use wear-resistant material preparation eccentric block 47, thereby prolong the life of washing rifle, and the user can maintain through changing eccentric block 47, and the maintenance cost is saved.

Preferably, the eccentric block 47 is provided with a positioning hole 471, the mounting seat 46 is provided with a positioning portion 461 matched with the positioning hole 471, the positioning hole 471 and the positioning portion 461 are arranged to facilitate positioning and mounting of the eccentric block 47, and the eccentric block 47 is prevented from vibrating due to installation errors of the eccentric block 47 in the use process of the cleaning gun, so that the service life of the cleaning gun is prevented from being affected.

The mounting seat 46 is provided with a positioning surface 462 matched with the end part of the eccentric block 47, in the embodiment, the eccentric block 47 is a hollow cylinder, the positioning hole 471 is arranged at the end part of the cylinder, the cylinder is convenient for quick production, two groups of mounting surfaces 472 which are parallel to each other are arranged at two ends of the cylindrical eccentric block 47, the positioning surface 462 is obliquely arranged relative to the sliding direction of the piston 45, one group of the mounting surfaces 472 abuts against the positioning surface 462, the piston 45 abuts against the other group of the mounting surfaces 472, the structure is simple, and the eccentric block 47 is convenient to produce.

In this embodiment, the end of the piston 45 is provided with the arc-shaped abutting portion 451, when the eccentric block 47 moves, the abutting portion 451 slides on the abutting block, so that the eccentric block 47 is prevented from being scratched by the piston 45 in the using process, and the eccentric block 47 and the piston 45 are seriously abraded in the using process.

The cleaning gun is characterized in that a water inlet check valve 8 is arranged between the piston cavity 43 and the water inlet pipe 42, a water outlet check valve 7 is arranged between the piston cavity 43 and the water outlet pipe 41, liquid in the water inlet pipe 42 enters the piston cavity 43 through the water inlet check valve 8 and then enters the water outlet pipe 41 through the water outlet check valve 7 in the use process of the cleaning gun, and the water inlet check valve 8 and the water outlet check valve 7 are arranged to be beneficial to avoiding accidental backflow of the liquid and to improve the pressure of the liquid in the water outlet pipe 41.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a portable cleaning gun, includes the pump body (4) and is used for driving power device (2) of pump body (4) motion, is provided with piston chamber (43) in the pump body (4), is provided with piston (45) in piston chamber (43), inlet tube (42) and outlet pipe (41) that connect on piston chamber (43), its characterized in that: an overflow pipe (44) is arranged between the water outlet pipe (41) and the water inlet pipe (42), an overflow valve (6) is arranged on the overflow pipe (44), and when the pressure difference in the water outlet pipe (41) exceeds the set value of the overflow valve (6) in the use process of the cleaning gun, liquid in the water outlet pipe (41) enters the water inlet pipe (42) through the overflow pipe (44) and the overflow valve (6).

2. A portable cleaning gun according to claim 1, wherein: the overflow valve is characterized in that a mounting hole (48) for mounting the overflow valve (6) is formed in the side wall of the water inlet pipe (42), a connecting pipe (5) is detachably arranged on the water inlet pipe (42), the connecting pipe (5) is located in the extending direction of the mounting hole (48), the depth of the mounting hole (48) is larger than the distance between the overflow valve (6) and the connecting pipe (5), and the overflow valve (6) is prevented from being separated from the mounting hole (48).

3. A portable cleaning gun according to claim 2, wherein: the side wall of the connecting pipe (5) is provided with a groove (51) for liquid to pass through, and when the overflow valve (6) is abutted against the connecting pipe (5), the liquid enters the water inlet pipe (42) through the groove (51).

4. A portable cleaning gun according to claim 1, 2 or 3, wherein: the overflow valve (6) comprises a shell (61), a channel for liquid to pass through is further arranged in the shell (61), and a sealing marble (62) of the channel and a return spring (63) for driving the sealing marble (62) to reset are arranged in the shell (61).

5. A portable cleaning gun according to claim 4, wherein: be provided with into water check valve (8) between piston chamber (43) and inlet tube (42), be provided with out water check valve (7) between piston chamber (43) and outlet pipe (41), during the cleaning gun use, liquid in inlet tube (42) gets into in piston chamber (43) through into water check valve (8), then gets into in outlet pipe (41) through going out water check valve (7).

6. A portable cleaning gun according to claim 1 or 2 or 3 or 5, wherein: the pump body (4) is internally provided with an eccentric block (47) for driving the piston (45) to move and an elastic piece for driving the piston (45) to abut against the eccentric block (47), and the power device (2) drives the eccentric block (47) to move so as to drive the piston (45) to reciprocate in the piston cavity (43).

7. A portable cleaning gun according to claim 6, wherein: the pump body (4) is provided with a mounting seat (46), and the eccentric block (47) is detachably arranged on the mounting seat (46).

8. A portable cleaning gun according to claim 7, wherein: the positioning hole (471) is formed in the upper portion, and the positioning portion (461) matched with the positioning hole (471) is arranged on the mounting seat (46).

9. A portable cleaning gun according to claim 7 or 8, wherein: the mounting seat (46) is provided with a positioning surface (462) matched with the end part of the eccentric block (47), the eccentric block (47) is provided with two groups of mounting surfaces (472) which are parallel to each other, the positioning surface (462) is obliquely arranged relative to the sliding direction of the piston (45), one group of mounting surfaces (472) abuts against the positioning surface (462), and the piston (45) abuts against the other group of mounting surfaces (472).

10. A portable cleaning gun according to claim 9, wherein: the end part of the piston (45) is provided with an arc-shaped abutting part (451), and when the eccentric block (47) moves, the abutting part (451) slides on the abutting block.