CN211009917U

CN211009917U - Valve core integrated high-sealing overflow valve

Info

Publication number: CN211009917U
Application number: CN201921596915.8U
Authority: CN
Inventors: 王金凤
Original assignee: Changsha Weidong Electromechanical Equipment Co ltd
Current assignee: Changsha Weidong Electromechanical Equipment Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-14
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a case integral type high sealed overflow valve, including the overflow valve body, the inside valve body that is including of overflow valve body, and valve body front end fixedly connected with threaded connection spare, the inside swing joint of threaded connection spare has the screw rod, and screw rod upper end fixedly connected with control lever, the oil-out has been seted up to the valve body upper end, and the inside logical oil groove of having seted up of valve body, the screw rod rear end has the control block through welding piece welded connection, and control block outside fixedly connected with sealing ring, the inside upper end fixedly connected with sealing washer of overflow valve body, and the inside screw thread connection groove of having seted up of. This case integral type high sealed overflow valve, holistic intensity is higher, and can realize carrying out stable the exerting pressure to whole, has reduced the wearing and tearing of sealing ring simultaneously to holistic life has been increased, and the good leakproofness of sealing ring has been guaranteed, thereby makes whole stronger leakproofness that has, thereby has increased whole practicality.

Description

Valve core integrated high-sealing overflow valve

Technical Field

The utility model relates to an overflow valve technical field specifically is a case integral type high seal overflow valve.

Background

The overflow valve is a hydraulic pressure control valve, mainly plays the roles of constant pressure overflow, pressure stabilization, system unloading and safety protection in hydraulic equipment, and can cause unnecessary external leakage due to the damage of an O-shaped sealing ring and a combined sealing ring or the loosening of an installation screw and a pipe joint when the overflow valve is assembled or used.

However, most of existing overflow valves are split type, the whole pressure is unstable, the whole sealing effect is poor, blind plugging sealing performance is poor when an oil way is plugged, the oil leakage condition is easy to occur, and the whole practicability is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a case integral type high sealed overflow valve to propose current overflow valve in solving above-mentioned background art, the case is split type mostly, and holistic pressure is unstable, leads to holistic sealed effect relatively poor, and blind stifled leakproofness is poor when blockking up the oil circuit, appears the condition of oil leak easily, has reduced the problem of whole practicality.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a case integral type high sealed overflow valve, includes the overflow valve body, the inside valve body that includes of overflow valve body, and valve body front end fixedly connected with threaded connection spare, the inside swing joint of threaded connection spare has the screw rod, and screw rod upper end fixedly connected with control lever, the oil-out has been seted up to the valve body upper end, and the inside oil groove that leads to of having seted up of valve body, the screw rod rear end has the control block through welding piece welded connection, and the outside fixedly connected with sealing ring of control block, the inside upper end fixedly connected with sealing washer of overflow valve body, and the inside threaded.

Preferably, the inside oil groove that leads to of valve body is inside from last to including control groove and oil feed tank down in proper order, and the width of control groove is greater than the width of oil feed tank, control groove and the inside intercommunication each other of oil-out, and oil-out and control groove intercommunication department adopt the smooth design of cambered surface.

Preferably, the screw rod and threaded connection spare looks adaptation, and the length of screw rod is greater than the length of control groove, the control inslot portion laminates with the sealing ring outside each other, and the sealing ring is high elasticity rubber material, the horizontal central line of sealing ring and control block overlaps.

Preferably, the control block is overlapped with the vertical center line of the control groove, the diameter of the control block is smaller than that of the control groove, and the communicating part of the control groove and the oil inlet groove is designed in a funnel shape.

Preferably, the lower end of the control block is fixedly connected with a sealing block which is of a semicircular structure, the sealing block is made of high-elasticity rubber, and the sealing block is overlapped with the vertical center line of the oil inlet groove.

Preferably, the threaded connection groove in the sealing ring is matched with the screw rod, and the sealing ring is in threaded connection with the screw rod through the threaded connection groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this case integral type high sealing overflow valve through changing screw rod and control block into there is the welding piece to carry out welded structure to make whole becoming the integral type, holistic intensity is higher, and the case pressure of integral type is stable, can realize carrying out stable the exerting pressure to whole.

2. This case integral type high sealed overflow valve through changing oil-out and logical oil groove intercommunication end into smooth design to make the sealing ring reduce at the wearing and tearing of removal process, reduced the wearing and tearing of sealing ring, thereby increased holistic life, and guaranteed the good leakproofness of sealing ring.

3. This case integral type high sealed overflow valve can block up the oil feed tank through the sealed stifled piece that increases high elasticity rubber material at the control block lower extreme, prevents wholly the condition that the oil leak appears when blind stifled to increase the sealing washer in the inside upper end of overflow valve body, thereby make whole stronger leakproofness that has, thereby increased whole practicality.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the screw rod of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the sealing ring of the present invention.

In the figure: 1. an overflow valve body; 2. a valve body; 3. a threaded connection; 4. a screw; 5. a control lever; 6. An oil outlet; 7. an oil groove is communicated; 8. a control block; 9. a seal ring; 10. a seal ring; 11. connecting grooves by screw threads; 12. a control slot; 13. an oil inlet groove; 14. and (6) sealing the plugging block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a case integral type high sealed overflow valve, including

overflow valve body

1, 1 inside including valve body 2 of overflow valve body, and 2 front end fixedly connected with threaded connection spare 3 of valve body, the inside swing joint of threaded connection spare 3 has

screw rod

4, and 4 upper ends fixedly connected with control levers 5 of screw rod, oil-out 6 has been seted up to 2 upper ends of valve body, and 2 inside logical oil grooves 7 of having seted up of valve body, 4 rear ends of screw rod have control block 8 through welded block welded connection, and 8 outside fixedly connected with sealing rings 9 of control block, 1 inside upper end fixedly connected with sealing washer 10 of overflow valve body, and the inside screw thread connection groove 11 of having.

Further, the inside oil groove 7 that leads to of valve body 2 is inside from last to including control tank 12 and inlet tank 13 down in proper order, and the width of control tank 12 is greater than the width of inlet tank 13, and control tank 12 communicates with each other with 6 inside of oil-out, and oil-out 6 adopts the smooth design of cambered surface with 12 intercommunication departments of control tank, and the oil-out 6 of the smooth design of cambered surface can not cause the injury to the sealing ring 9 outside, has increased holistic life.

Furthermore, the screw rod 4 is matched with the threaded connecting piece 3, the length of the screw rod 4 is larger than that of the control groove 12, the inner portion of the control groove 12 is attached to the outer side of the sealing ring 9, the sealing ring 9 is made of high-elasticity rubber, the horizontal center lines of the sealing ring 9 and the control block 8 are overlapped, and the screw rod 4 can move inside the threaded connecting piece 3, so that the position of the control block 8 is controlled, and the effect of controlling pressure is achieved.

Furthermore, the control block 8 is overlapped with the vertical central line of the control groove 12, the diameter of the control block 8 is smaller than that of the control groove 12, the communicating part of the control groove 12 and the oil inlet groove 13 adopts a funnel-shaped design, and the upper end of the oil inlet groove 13 of the funnel-shaped design is convenient for the sealing and blocking block 14 to be inserted, so that the high-sealing effect is achieved.

Further, the lower end of the control block 8 is fixedly connected with a sealing block 14, the sealing block 14 is of a semicircular structure, the sealing block 14 is made of high-elasticity rubber, the sealing block 14 is overlapped with the vertical central line of the oil inlet groove 13, and the sealing block 14 made of the high-elasticity rubber can deform and tightly attach to the upper end of the oil inlet groove 13.

Further, the inside thread connection groove 11 of sealing washer 10 and screw rod 4 looks adaptation, and sealing washer 10 passes through thread connection groove 11 and screw rod 4 threaded connection, and sealing washer 10 can increase the leakproofness of 2 upper ends of valve body to holistic sealed effect has been guaranteed.

The working principle is as follows: at first be connected overflow valve body 1 with oil pressure equipment, hydraulic oil passes through oil feed tank 13 and gets into inside valve body 2, and flow through oil-out 6, when needs were mediated the pressure of inside, make control lever 5 drive screw rod 4 move inside threaded connection spare 3 through rotating control lever 5, thereby make control block 8's upper and lower position adjust, control block 8 can carry out the jam of different degrees to oil-out 6 at the in-process that removes, thereby make whole can control the pressure of hydraulic oil, when blindly stifled the whole simultaneously, rotate screw rod 4 to the lowest position, thereby make sealed block 14 can block up oil feed tank 13 at the in-process that descends, and sealing ring 9 can block up control tank 12, realize whole high sealing state, prevent the inside condition that the oil leak of appearing of valve body 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a case integral type high sealing overflow valve, includes the overflow valve body, its characterized in that: the overflow valve comprises an overflow valve body, wherein the overflow valve body comprises a valve body, a threaded connecting piece is fixedly connected to the front end of the valve body, a screw rod is movably connected to the inside of the threaded connecting piece, a control rod is fixedly connected to the upper end of the screw rod, an oil outlet is formed in the upper end of the valve body, an oil through groove is formed in the valve body, the rear end of the screw rod is connected with a control block through a welding block in a welding mode, a sealing ring is fixedly connected to the outer side of the control block, a sealing ring.

2. The valve core integrated high-sealing overflow valve according to claim 1, characterized in that: the inside oil groove that leads to of valve body is inside from last to including control groove and inlet tank down in proper order, and the width in control groove is greater than the width of inlet tank, control groove and the inside intercommunication each other of oil-out, and oil-out and control groove intercommunication department adopt the smooth design of cambered surface.

3. The valve core integrated high-sealing overflow valve according to claim 2, characterized in that: the screw rod and threaded connection spare looks adaptation, and the length of screw rod is greater than the length of control groove, the control inslot portion laminates with the sealing ring outside each other, and the sealing ring is high elasticity rubber material, the horizontal central line of sealing ring and control block overlaps.

4. The valve core integrated high-sealing overflow valve according to claim 2, characterized in that: the control block is overlapped with the vertical center line of the control groove, the diameter of the control block is smaller than that of the control groove, and the communicating part of the control groove and the oil inlet groove is designed in a funnel shape.

5. The valve core integrated high-sealing overflow valve according to claim 2, characterized in that: the lower end of the control block is fixedly connected with a sealing block which is of a semicircular structure, the sealing block is made of high-elasticity rubber, and the sealing block is overlapped with the vertical center line of the oil inlet groove.

6. The valve core integrated high-sealing overflow valve according to claim 1, characterized in that: the inside thread connection groove of sealing washer and screw rod looks adaptation, and the sealing washer passes through thread connection groove and screw rod threaded connection.