CN218094575U

CN218094575U - Manual reversing valve

Info

Publication number: CN218094575U
Application number: CN202222219879.1U
Authority: CN
Inventors: 吕海涛
Original assignee: Ningbo Haiwei Hydraulic Technology Co ltd
Current assignee: Ningbo Haiwei Hydraulic Technology Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-12-20
Anticipated expiration: 2032-08-23

Abstract

The utility model provides a manual reversing valve, which comprises an outer shell, a pressure bar component and a handle component, wherein the pressure bar component is arranged on the outer shell and comprises a base fixedly connected with the outer shell, a pressure bar is arranged in the base in a sliding way, and a first spring is arranged between the pressure bar and the base; a switch seat is arranged on the outer side of the base, and a contact switch is arranged on the switch seat at a position corresponding to the tail end of the pressure rod; the handle assembly is rotatably arranged in the outer shell and comprises a handle with one end extending into the outer shell and a pressing block fixed at the extending end of the handle, and the side wall surface of the pressing block abuts against the head end of the pressing rod; the handle can drive the pressure rod to slide towards the contact switch through the pressing block, so that the pressure rod is in contact with the contact switch to be electrified. The utility model provides a pair of manual reversing valve has overcome the complicated and hard defect of operation of current manual reversing valve structure.

Description

Manual reversing valve

Technical Field

The utility model relates to a switching-over valve field especially relates to a manual switching-over valve.

Background

The reversing valve is a direction control valve with more than two flow forms and more than two oil ports, is a valve for realizing communication, cutting off and reversing of hydraulic oil flow, pressure unloading and sequential action control, and can be divided into a manual reversing valve, an electromagnetic reversing valve and an electro-hydraulic reversing valve.

The manual reversing valve is a reversing valve with a valve core operated by a manual rod to change positions, and the conventional manual reversing valve has a complex structure, more parts and high manufacturing cost; and the driving mode is more complicated, the operation is more laborious and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a hand-operated directional valve is provided to overcome the complicated and hard defect of operation of current hand-operated directional valve structure.

(II) technical scheme

For solving the technical problem, the utility model provides a manual reversing valve, include:

the pressing rod assembly is arranged on the outer shell and comprises a base fixedly connected with the outer shell, a pressing rod is arranged in the base in a sliding mode, and a first spring is arranged between the pressing rod and the base; a switch seat is arranged on the outer side of the base, and a contact switch is arranged on the switch seat at a position corresponding to the tail end of the pressure rod;

the handle assembly is rotatably arranged in the outer shell and is positioned on the inner side of the pressure lever assembly; the handle assembly comprises a handle with one end extending into the outer shell and a pressing block fixed at the extending end of the handle, and the side wall surface of the pressing block abuts against the head end of the pressing rod; the handle can drive the pressure rod to slide towards the contact switch through the pressure block, so that the pressure rod is in contact with the contact switch and electrified.

The motor-driven reversing valve is arranged on the outer shell and is positioned below one side, far away from the compression bar assembly, of the handle assembly; when the pressure lever is reset, the pressure block can be in contact with the motorized reversing valve for unloading.

Further, the outer shell comprises a box body and a cover plate fixed on the box body through a first screw, the pressure lever assembly is installed on the right wall of the box body, and the motorized reversing valve is installed on the lower wall of the box body; one end of the handle component penetrates through the cover plate from the upper side and is arranged in the box body, and the cover plate is provided with a through hole through which the handle can conveniently penetrate.

Furthermore, the handle assembly further comprises a bakelite handle fixed at the end of the handle and a dust-proof sleeve sleeved on the handle, and the dust-proof sleeve shields the through hole.

Furthermore, the pressing block is fan-shaped and is fixedly connected with the handle through an inner hexagonal flat end set screw and a transverse pin.

Furthermore, a first limiting part is arranged at the head end of the pressure lever, and the first limiting part can abut against the front end of the base to limit the pressure lever; and the tail end of the pressure rod is provided with a split retainer ring, and the split retainer ring can abut against the rear end of the base to limit the pressure rod.

Further, a gasket is installed between the switch base and the outer shell, and the contact switch is fixedly connected with the switch base through a second screw.

Furthermore, one end of the motorized reversing valve extends into the outer shell, and the extending end of the motorized reversing valve is fixedly connected with the outer shell through a fastening nut. The motor-driven reversing valve comprises a valve body and a valve rod which is slidably installed in the valve body, a second spring is installed between the valve rod and the valve body, and the upper end of the valve rod can be in contact with the pressing block to unload.

(III) advantageous effects

The manual reversing valve provided by the utility model has the advantages of simple structure, fewer parts and low manufacturing cost; the driving mode is simple, the operation is labor-saving, the handle is swung when the mechanism is used, the handle drives the pressing rod to slide towards the contact switch through the pressing block, so that the pressing rod and the contact switch are in contact and electrified, and the mechanism starts to work; when the pressure lever is rebounded by the first spring, the pressure lever is separated from the contact switch, the mechanism is powered off, and meanwhile, the handle is contacted with the motorized reversing valve under the action of the first spring to complete unloading.

Drawings

Fig. 1 is a schematic structural view of a top view of a manual directional valve according to the present invention;

FIG. 2 isbase:Sub>A sectional view of FIG. 1 taken along section A-A;

fig. 3 is a schematic structural view of a manual directional valve pressing rod assembly of the present invention;

fig. 4 is a schematic structural view of a handle assembly of a manual directional valve according to the present invention;

fig. 5 is a schematic structural view of a motorized reversing valve of a manual reversing valve of the present invention;

FIG. 6 is a schematic structural view of a dustproof cover of a manual directional control valve according to the present invention;

the corresponding part names for the various reference numbers in the figures are: 1. an outer housing; 11. a case body; 12. a cover plate; 13. perforating; 14. a first screw; 2. a compression bar assembly; 21. a base; 22. a pressure lever; 23. a first spring; 24. a switch base; 25. a contact switch; 26. a first limiting part; 27. a split washer; 28. a gasket; 29. a second screw; 3. a handle assembly; 31. a handle; 32. briquetting; 33. a bakelite handle; 34. a dust-proof sleeve; 35. a set screw is fastened at the flat end of the inner hexagon; 36. a transverse pin; 4. a motorized reversing valve; 41. fastening a nut; 42. a valve body; 43. a valve stem; 44. a second spring; 5. and a tilt spring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 6, the present invention provides a manual directional valve, which comprises an outer housing 1, a pressure bar assembly 2, a handle assembly 3 and a motorized directional valve 4.

Referring to fig. 2 and 3, the strut assembly 2 is mounted on the outer housing 1, and the strut assembly 2 includes a base 21 fixedly connected to the outer housing 1, and the base 21 is disposed along a horizontal direction. A pressing rod 22 is installed in the base 21 in a sliding mode along the horizontal direction, a first spring 23 is installed between the pressing rod 22 and the base 21, and the first spring 23 is used for resetting the pressing rod 22. A switch base 24 is installed on the outer side of the base 21, and a contact switch 25 is arranged on the switch base 24 corresponding to the tail end position of the pressure lever 22.

Referring to fig. 2 and 4, the handle assembly 3 is rotatably installed in the outer housing 1 and located inside the plunger assembly 2. The handle assembly 3 comprises a handle 31 with one end extending into the outer shell 1 and a pressing block 32 fixed at the extending end of the handle 31, and the side wall surface of the pressing block 32 is abutted against the head end of the pressing rod 22; the handle 31 can drive the pressing rod 22 to slide towards the contact switch 25 through the pressing block 32, so that the pressing rod 22 is in contact with the contact switch 25 to be electrified.

Referring to fig. 2 and 5, the motor-driven reversing valve 4 is installed on the outer shell 1 and is located below the side of the handle assembly 3 away from the pressure rod assembly 2, and a slope spring 5 is arranged on one side of the motor-driven reversing valve 4. When the pressure lever 22 is reset, the pressure block 32 can be in contact with the motor-driven reversing valve 4 for unloading.

Referring to fig. 1 and 2, the outer case 1 includes a case 11 and a cover 12 fixed to the case 11 by first screws 14. The compression bar component 2 is arranged on the right wall of the box body 11, and the motor-driven reversing valve 4 is arranged on the lower wall of the box body 11; one end of the handle assembly 3 is inserted through the cover plate 12 from the upper side and is placed in the case 11, and the cover plate 12 is provided with a through hole 13 for allowing the handle 31 to pass therethrough.

Referring to fig. 4 and 6, the handle assembly 3 further includes a bakelite handle 33 fixed at the end of the handle 31 and a dust-proof cover 34 covering the handle 31, wherein the dust-proof cover 34 covers the through hole 13 for preventing dust, and the bakelite handle 33 is provided to facilitate the operation of the handle 31. The pressing block 32 is in a fan shape, and the pressing block 32 is fixedly connected with the handle 31 through an inner hexagonal flat end set screw 35 and a transverse pin 36.

Referring to fig. 3, the head end of the pressing rod 22 is provided with a first limiting portion 26, and the first limiting portion 26 can abut against the front end of the base 21 to limit the pressing rod 22; a split retainer ring 27 is arranged at the tail end of the pressure rod 22, and the split retainer ring 27 can abut against the rear end of the base 21 to limit the pressure rod 22. A gasket 28 is arranged between the switch base 24 and the outer shell 1, and the contact switch 25 is fixedly connected with the switch base 24 through a second screw 29.

Referring to fig. 2 and 5, one end of the motor-driven reversing valve 4 extends into the outer casing 1, and the extending end of the motor-driven reversing valve 4 is fixedly connected with the outer casing 1 through a fastening nut 41. The motor-driven reversing valve 4 comprises a valve body 42 and a valve rod 43 which is slidably arranged in the valve body 42, a second spring 44 is arranged between the valve rod 43 and the valve body 42, and the upper end of the valve rod 43 can be unloaded from the pressure block 32.

The manual reversing valve provided by the embodiment has the advantages of simple structure, fewer parts and low manufacturing cost; the driving mode is simple, the operation is labor-saving, the handle is swung when the mechanism is used, and the handle drives the pressing rod to slide towards the contact switch through the pressing block, so that the pressing rod is in contact with the contact switch to be electrified, and the mechanism starts to work; when the pressure lever is rebounded by the first spring, the pressure lever is separated from the contact switch, the mechanism is powered off, and meanwhile, the handle is contacted with the motorized reversing valve under the action of the first spring to complete unloading.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the technical principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention.

Claims

1. A manually actuated reversing valve, comprising:

the pressing rod assembly (2) is installed on the outer shell (1) and comprises a base (21) fixedly connected with the outer shell (1), a pressing rod (22) is installed in the base (21) in a sliding mode, and a first spring (23) is installed between the pressing rod (22) and the base (21); a switch seat (24) is installed on the outer side of the base (21), and a contact switch (25) is arranged on the switch seat (24) at a position corresponding to the tail end of the pressure lever (22);

the handle assembly (3) is rotatably arranged in the outer shell (1) and is positioned on the inner side of the pressure lever assembly (2); the handle assembly (3) comprises a handle (31) with one end extending into the outer shell (1) and a pressing block (32) fixed at the extending end of the handle (31), and the side wall surface of the pressing block (32) is abutted against the head end of the pressing rod (22); the handle (31) can drive the pressure lever (22) to slide towards the contact switch (25) through the pressing block (32), so that the pressure lever (22) is in contact with the contact switch (25) and electrified.

2. The manual reversing valve of claim 1, further comprising:

the motorized reversing valve (4) is mounted on the outer shell (1) and is positioned below one side, far away from the pressure rod assembly (2), of the handle assembly (3); when the pressure lever (22) is reset, the pressure block (32) can be in contact with the motor-driven reversing valve (4) for unloading.

3. A hand operated reversing valve according to claim 2, wherein: the outer shell (1) comprises a box body (11) and a cover plate (12) fixed on the box body (11) through a first screw (14), the pressure lever assembly (2) is installed on the right wall of the box body (11), and the motor-driven reversing valve (4) is installed on the lower wall of the box body (11); one end of the handle component (3) penetrates through the cover plate (12) from the upper side and is arranged in the box body (11), and a through hole (13) which is convenient for the handle (31) to penetrate through is formed in the cover plate (12).

4. A hand operated directional control valve as set forth in claim 1 wherein: handle components (3) still including fixing bakelite handle (33) and the suit of handle (31) tip are in dirt proof boot (34) on handle (31), perforation (13) are sheltered from to dirt proof boot (34).

5. The manual reversing valve of claim 1, wherein: the pressing block (32) is fan-shaped, and the pressing block (32) is fixedly connected with the handle (31) through an inner hexagonal flat end set screw (35) and a transverse pin (36).

6. A hand operated directional control valve as set forth in claim 1 wherein: the head end of the pressure lever (22) is provided with a first limiting part (26), and the first limiting part (26) can abut against the front end of the base (21) to limit the pressure lever (22); a split washer (27) is installed at the tail end of the pressure rod (22), and the split washer (27) can abut against the rear end of the base (21) to limit the pressure rod (22).

7. The manual reversing valve of claim 1, wherein: a gasket (28) is installed between the switch seat (24) and the outer shell (1), and the contact switch (25) is fixedly connected with the switch seat (24) through a second screw (29).

8. A hand operated reversing valve according to claim 2, wherein: one end of the motor-driven reversing valve (4) extends into the outer shell (1), and the extending end of the motor-driven reversing valve (4) is fixedly connected with the outer shell (1) through a fastening nut (41).

9. A hand operated reversing valve according to claim 2, wherein: the motor-driven reversing valve (4) comprises a valve body (42) and a valve rod (43) installed in the valve body (42) in a sliding mode, a second spring (44) is installed between the valve rod (43) and the valve body (42), and the upper end of the valve rod (43) can be in contact with the pressing block (32) to unload.