CN210660800U

CN210660800U - Combination valve and hydraulic tool

Info

Publication number: CN210660800U
Application number: CN201921441707.0U
Authority: CN
Inventors: 张银根; 何挺伟
Original assignee: Taizhou Juli Tools Co ltd
Current assignee: Taizhou Juli Tools Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-02
Anticipated expiration: 2029-08-30

Abstract

The utility model belongs to the technical field of hydraulic means, refer in particular to a combination valve and hydraulic means, including the valve body, seted up oil feed chamber and oil outlet chamber in the valve body, be provided with the inlet valve in the oil feed chamber, the check valve that produces oil is installed to the oil outlet intracavity, the check valve that produces oil includes the disk seat that produces oil and the steel ball that produces oil, the disk seat that produces oil is located the oil-out department of oil outlet chamber, and the steel ball that produces oil supports the oil inlet department at the oil outlet chamber, and the shaping has the guide post on the disk seat that produces oil, and the guide post overcoat is equipped with the oil spring that produces oil, and the spring pressure that produces oil is established between disk seat. The utility model aims at providing a set up the oil outlet disk seat that has the guide post in the check valve that produces oil, can restrict the height of opening of the spring that produces oil and the steel ball that produces oil, avoid the spring that produces oil to be compressed excessively, increase of service life's combination valve to and the hydraulic means of application this combination valve.

Description

Combination valve and hydraulic tool

Technical Field

The utility model belongs to the technical field of hydraulic tool, refer in particular to a combination valve and hydraulic tool.

Background

The hydraulic tool can convert strong hydraulic power into mechanical motions such as reciprocating linear motion, rotary motion, cycloid motion and the like, and comprises a hydraulic wrench, a hydraulic jack, a hydraulic clamp, a hydraulic stretcher, a hydraulic puller and the like, wherein a complete hydraulic tool system consists of five parts, namely a power element, an execution element, a control element, an auxiliary element and hydraulic oil, wherein the control element controls and adjusts the pressure, the flow and the direction of the liquid in the hydraulic system. According to control function's difference, the hydrovalve can be divided into pressure control valve, flow control valve and direction control valve, the direction control valve includes the check valve, the switching-over valve, combination valve etc. the check valve has generally been installed in the combination valve, current check valve includes steel ball and spring usually, the passage mouth department is stopped up to the steel ball, the spring pressure is established between valve body and steel ball, thereby fluid promotes the steel ball through the passageway and opens the passageway, the reset of spring mainly used steel ball, therefore, the spring can often receive the pressure of steel ball and produce deformation, through long-time use, the spring often receives the compression of steel ball to damage easily, influence life.

Disclosure of Invention

The utility model aims at providing a set up the oil outlet disk seat that has the guide post in the check valve that produces oil, can restrict the height of opening of the spring that produces oil and the steel ball that produces oil, avoid the spring that produces oil by excessive compression or excessive deformation, increase of service life's combination valve to and the hydraulic means of application this combination valve.

The purpose of the utility model is realized like this:

the utility model provides a combination valve, includes the valve body, has seted up oil feed chamber and delivery chamber in the valve body, is provided with the inlet valve in the oil feed chamber, and the delivery intracavity is installed out oil check valve, the delivery check valve includes delivery valve seat and delivery steel ball, the delivery valve seat is located the oil-out department of delivery chamber, and the delivery steel ball supports in the oil inlet department of delivery chamber, and the shaping has the guide post on the delivery valve seat, and the guide post overcoat is equipped with out oil spring, and it establishes between delivery valve seat and delivery steel ball to go out oil spring pressure.

The oil outlet valve seat is of a multi-edge-shaped structure, and an oil outlet channel for oil to pass through is formed between two adjacent edges in an inwards-recessed mode.

The oil inlet valve comprises an oil inlet valve seat and an oil inlet steel ball, the oil inlet valve seat is located at an oil outlet of the oil inlet cavity, the oil inlet steel ball abuts against an oil inlet of the oil inlet cavity, a gap exists between the oil inlet valve seat and the oil inlet steel ball, and the oil inlet valve seat is provided with a plurality of oil inlet holes.

The safety valve is characterized in that a safety valve cavity is formed in the valve body, a safety valve is arranged in the safety valve cavity, the safety valve comprises a safety valve seat, a valve needle and a safety valve spring, an oil inlet channel I is formed in the safety valve seat, the valve needle is arranged at the outlet end of the oil inlet channel I, an oil outlet channel I is formed in one side of the valve needle in the safety valve cavity, and the safety valve spring is sleeved on the valve needle.

A hydraulic tool comprises a handle and a shell, wherein a pump body is arranged in the shell, the outer end of the pump body is connected with the handle, a pump cavity and an oil outlet channel II are formed in the pump body, the combination valve is installed in the pump cavity, and an oil outlet of an oil outlet cavity is communicated with the oil outlet channel II; a cylinder body is arranged at one end of the shell, and a piston is arranged in the cylinder body.

An oil bag is arranged in the shell, a cylinder seat is arranged at one end of the oil bag and connected with the cylinder body, and a piston is arranged in the cylinder body in a moving mode; an oil filling channel and an oil return channel which are communicated with the oil bag and a main oil channel which is communicated with the oil outlet channel II are arranged in the cylinder seat, the piston is positioned at the outlet of the main oil channel, the oil return channel is communicated with the oil bag and the main oil channel, and an oil return valve is arranged in the oil return channel.

The piston is further provided with a thimble at the outer end, a spring seat is arranged between the outer end of the piston and the cylinder body, and a return spring is arranged between the spring seat and the inner end of the piston in a pressing manner.

The outer end of the pump body is connected with a plunger sleeve, a plunger is arranged in the plunger sleeve in a moving mode, and the plunger is hinged to the handle; the outer side of the plunger sleeve is sleeved with a supporting sleeve, and a connecting plate is arranged between the supporting sleeve and the handle.

Further, a tripod is arranged on the outer side of the cylinder body, and the end part of the tripod is connected with the pulling claw through a connecting rod.

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

the utility model discloses set up the outlet valve seat that has the guide post in the check valve that produces oil, the guide post periphery cover is equipped with the spring that produces oil, and the spring both ends that produce oil are pressed and are established between outlet steel ball and the outlet valve seat, and the oil circuit can be opened when fluid promotes outlet steel ball, and the setting of guide post can restrict the height of opening of outlet spring and outlet steel ball, avoids the outlet spring to be compressed excessively or excessively warp increase of service life.

Drawings

Fig. 1 is a plan view of the combination valve of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Fig. 4 is a bottom view of the combination valve of the present invention.

Fig. 5 is a structural sectional view of the pump body of the present invention.

Fig. 6 is a structural sectional view of the hydraulic tool of the present invention.

Fig. 7 is a structural sectional view of the cylinder base of the present invention.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to figures 1 to 7:

a combination valve, as shown in fig. 1-4, comprises a valve body 1, wherein an oil inlet cavity 11 and an oil outlet cavity 12 are arranged in the valve body 1, an oil inlet channel 114 is arranged at one side of the oil inlet cavity 11, and an oil inlet valve is arranged in the oil inlet cavity 11. As shown in fig. 3, the oil inlet valve comprises an oil inlet valve seat 111 and an oil inlet steel ball 112, the oil inlet valve seat 111 is positioned at an oil outlet of the oil inlet cavity 11, the oil inlet steel ball 112 abuts against an oil inlet of the oil inlet cavity 11, a gap exists between the oil inlet valve seat 111 and the oil inlet steel ball 112, a plurality of oil inlet holes 113 are arranged on the oil inlet valve seat 111, oil can enter from the oil inlet channel 114 and push the oil inlet steel.

As shown in fig. 2, an oil outlet check valve is installed in the oil outlet chamber 12, the oil outlet check valve includes an oil outlet valve seat 121 and an oil outlet steel ball 122, the oil outlet valve seat 121 is located at an oil outlet of the oil outlet chamber 12, the oil outlet steel ball 122 abuts against an oil inlet of the oil outlet chamber 12, a guide column 123 is formed on the oil outlet valve seat 121, and the diameter of the guide column 123 is smaller than the diameter of the bottom of the oil outlet valve seat 121, so that a boss is formed on the oil outlet valve seat at the bottom end of the guide column, an oil outlet spring 124 is sleeved outside the guide column 123, and the oil outlet spring 124 is pressed between the boss and the oil outlet steel ball 122; the oil liquid pushes the oil outlet steel ball 122 to open an oil outlet channel, the oil outlet spring 124 moves downwards under the action of the oil outlet steel ball 122, the larger the moving stroke of the oil outlet steel ball 122 is, the larger the pressure generated by the oil outlet spring 124 is, the larger the deformation amount of the oil outlet spring is, when the oil outlet steel ball 122 moves to be abutted against the top of the guide column 123, namely, the maximum stroke of the oil outlet steel ball 122 is reached, the moving stroke of the oil outlet steel ball 122 is limited by the arrangement of the guide column 123, so that the oil outlet spring is prevented from being damaged due to over compression or over deformation, and the service life of the device is prolonged.

As shown in fig. 4, the oil outlet valve seat 121 is in a polygonal structure (three edges in the figure), two adjacent edges are recessed inwards to form an oil outlet channel 125 through which oil passes, and the oil enters the oil outlet cavity 12 after ejecting the oil outlet steel ball 122 and flows out along the oil outlet channel 125.

The safety valve comprises a safety valve seat 131, a valve needle 132 and a safety valve spring 133, wherein an oil inlet channel I134 is formed in the safety valve seat 131, the valve needle 132 is arranged at the outlet end of the oil inlet channel I134, an oil outlet channel I135 is formed in one side of the valve needle 132 of the safety valve cavity 13, and the safety valve spring 133 is sleeved on the valve needle 132, as shown in fig. 2. The safety valve is a pulse type safety valve, the valve needle 132 is used for blocking the oil inlet channel I134, the force for jacking the valve needle 132 is larger than the force for jacking the oil outlet steel ball 122, so that the oil outlet check valve is firstly opened by oil, when the oil pressure is continuously raised, the valve needle 132 is jacked to open a channel, the oil enters the safety valve cavity 13 and flows out along the oil outlet channel I135, and the pressure is released simultaneously when the valve needle 132 is jacked, so that the whole valve body is protected, and the effect of limiting the continuous rise of the pressure is achieved; meanwhile, when the valve needle 132 is pushed open, a puff sound is generated to remind the user that the pressure reaches the maximum value and the pressurization can be stopped, thereby playing a feedback role.

The combination valve can be applied to various hydraulic tools, and the embodiment takes a hydraulic puller as an example to give a specific implementation mode: the hydraulic tool comprises a handle 2 and a shell 3, wherein a pump body 4 and an oil bag 7 are arranged in the shell 3, the pump body 4 is inserted into the oil bag 7 and communicated with the oil bag 7, the outer end of the pump body 4 is connected with the handle 2, a pump cavity 41 and a second oil outlet channel 42 are arranged in the pump body 4, and the combination valve is arranged in the pump cavity 41. The valve body 1 of the combination valve is embedded in the pump cavity 41, and a gasket 48 is arranged between the end part of the valve body 1 and the inner wall of the pump cavity 41; an oil inlet 47 is formed in one side of the pump body 4, the oil inlet 47 is communicated with the oil inlet channel 114, oil supply liquid enters the oil bag 7, an oil discharge port 49 is formed in the other side of the pump body 4, the oil discharge port 49 is communicated with the oil outlet channel I135, and the oil supply liquid flows out and enters the oil bag 7; an oil outlet of the oil outlet cavity 12 is communicated with the oil outlet channel II 42, one end of the shell 3 is provided with a cylinder body 5, and the cylinder body 5 is connected with a pull claw 6.

A cylinder seat 8 is arranged at one end of the oil bag 7, one end of the cylinder seat 8 is in threaded connection with the pump body 4, the other end of the cylinder seat 8 is in threaded connection with the cylinder body 5, and a piston 51 is arranged in the cylinder body 5 in a moving mode; it leads to have seted up in the jar seat 8 oiling passageway 81, oil return passageway 82 and the intercommunication of oil bag 7 the main oil circuit passageway 83 of two 42 oil outlet channels, the opening part of oiling passageway 81 is equipped with oiling stopper 84 and oiling steel ball 85, and piston 51 is located main oil circuit passageway 83 exit, oil return passageway 82 intercommunication oil bag 7 and main oil circuit passageway 83 are equipped with the oil return valve in the oil return passageway 82, as shown in fig. 7, the oil return valve includes oil return valve plug 86 and oil return steel ball 88, and oil return steel ball 88 blocks up in oil return passageway 82 oil inlet department, and oil return valve plug 86 extends jar seat 8 outer end and is provided with knob 87, thereby drives oil return valve plug 86 outwards to move fluid and can open the passageway with oil return steel ball 88 promotion through rotating knob 87, and the fuel feeding liquid advances to get back in the oil bag 7.

The outer end of the piston 51 is connected with a thimble 52 through a thread, a spring seat 53 is arranged between the outer end of the piston 51 and the cylinder 5, and a return spring 54 is arranged between the spring seat 53 and the inner end of the piston 51 in a pressing manner. The oil flows into the cylinder 5 through the main oil passage 83, thereby pushing the piston 51 to move forward, and a seal ring is pressed between the piston 51 and the cylinder 5.

The outer end of the pump body 4 is fixedly connected to the shell 3 through a nut 9, the pump body extends out of the shell 3 and is connected with a plunger sleeve 43, a plunger 44 is arranged in the plunger sleeve 43 in a moving mode, and the plunger 44 is hinged to the handle 2; a support sleeve 45 is sleeved outside the plunger sleeve 43, a connecting plate 46 is arranged between the support sleeve 45 and the handle 2, and the plunger 44 is driven to move in the plunger sleeve 43 by lifting the handle 2.

A tripod 61 is arranged on the outer side of the cylinder body 5, the end of the tripod 61 is connected with the pulling claw 6 through a connecting rod 62, and in the embodiment, three pulling claws 6 are arranged and are respectively positioned at three corners of the tripod 61. The tripod and the claw pulling mechanism can be replaced by other power devices, such as a tong head and the like, so that other hydraulic tools, such as hydraulic tongs and the like, can be formed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a combination valve, includes valve body (1), offers oil feed chamber (11) and goes out oil chamber (12) in valve body (1), is provided with the inlet valve in oil feed chamber (11), installs out oil check valve, its characterized in that in going out oil chamber (12): the oil outlet check valve comprises an oil outlet valve seat (121) and an oil outlet steel ball (122), the oil outlet valve seat (121) is located at an oil outlet of the oil outlet cavity (12), the oil outlet steel ball (122) abuts against an oil inlet of the oil outlet cavity (12), a guide column (123) is formed on the oil outlet valve seat (121), an oil outlet spring (124) is sleeved outside the guide column (123), and the oil outlet spring (124) is pressed between the oil outlet valve seat (121) and the oil outlet steel ball (122).

2. The combination valve of claim 1, wherein: the oil outlet valve seat (121) is of a multi-edge-shaped structure, and an oil outlet channel (125) for oil to pass through is formed by inwards recessing two adjacent edges.

3. The combination valve of claim 1, wherein: the oil inlet valve comprises an oil inlet valve seat (111) and an oil inlet steel ball (112), the oil inlet valve seat (111) is located at an oil outlet of the oil inlet cavity (11), the oil inlet steel ball (112) abuts against an oil inlet of the oil inlet cavity (11), a gap exists between the oil inlet valve seat (111) and the oil inlet steel ball (112), and the oil inlet valve seat (111) is provided with a plurality of oil inlet holes (113).

4. A combination valve according to any of claims 1-3, wherein: the safety valve is characterized in that a safety valve cavity (13) is formed in the valve body (1), a safety valve is arranged in the safety valve cavity (13), the safety valve comprises a safety valve seat (131), a valve needle (132) and a safety valve spring (133), an oil inlet channel I (134) is formed in the safety valve seat (131), the outlet end of the oil inlet channel I (134) is provided with the valve needle (132), an oil outlet channel I (135) is formed in one side of the valve needle (132) of the safety valve cavity (13), and the safety valve spring (133) is sleeved on the valve needle (132).

5. A hydraulic tool comprising a handle (2) and a housing (3), characterized in that: a pump body (4) is arranged in the shell (3), the outer end of the pump body (4) is connected with the handle (2), a pump cavity (41) and a second oil outlet channel (42) are arranged in the pump body (4), the combination valve according to any one of claims 1-4 is arranged in the pump cavity (41), and an oil outlet of the oil outlet cavity (12) is communicated with the second oil outlet channel (42); a cylinder body (5) is arranged at one end of the shell (3), and a piston (51) is arranged in the cylinder body (5).

6. The hydraulic tool of claim 5, wherein: an oil bag (7) is arranged in the shell (3), a cylinder seat (8) is arranged at one end of the oil bag (7), and the cylinder seat (8) is connected with the cylinder body (5); an oil filling channel (81) leading to the oil bag (7), an oil return channel (82) and a main oil channel (83) communicated with the oil outlet channel II (42) are formed in the cylinder base (8), the piston (51) is located at the outlet of the main oil channel (83), the oil return channel (82) is communicated with the oil bag (7) and the main oil channel (83), and an oil return valve is arranged in the oil return channel (82).

7. The hydraulic tool of claim 6, wherein: the outer end of the piston (51) is provided with a thimble (52), a spring seat (53) is arranged between the outer end of the piston (51) and the cylinder body (5), and a return spring (54) is arranged between the spring seat (53) and the inner end of the piston (51) in a pressing manner.

8. A hydraulic tool as in any one of claims 5-7 wherein: the outer end of the pump body (4) is connected with a plunger sleeve (43), a plunger (44) is arranged in the plunger sleeve (43) in a moving mode, and the plunger (44) is hinged to the handle (2); a supporting sleeve (45) is sleeved on the outer side of the plunger sleeve (43), and a connecting plate (46) is arranged between the supporting sleeve (45) and the handle (2).

9. The hydraulic tool of claim 5, wherein: a tripod (61) is arranged on the outer side of the cylinder body (5), and the end part of the tripod (61) is connected with a pull claw (6) through a connecting rod (62).