CN217152465U - Switching handle of atomization type safety valve oil cylinder - Google Patents

Abstract

The utility model provides an atomizing formula relief valve hydro-cylinder's switching handle, includes the handle shell, locate the interior circuit seat that oils of handle shell and a plurality of fixed orificess that evenly locate the handle shell that are the circumference, go up the handle shell upper surface and be equipped with the connector rather than the inner space link up mutually, the circuit seat lower extreme that oils is connected with down the circuit seat, lower circuit seat lower extreme is equipped with the oil feed and connects, lower circuit seat outer wall one side is equipped with the oil feed chamber that link up mutually with the oil feed joint, its characterized in that: the lower surface of the upper handle shell is provided with a rotating hole, and the diameter of the rotating hole is smaller than the inner diameter of the upper handle shell; a lower handle shell is arranged right below the upper handle shell; the upper end of the upper handle shell penetrates into the upper handle shell upwards through the rotating hole and is sleeved outside the lower part of the upper oil circuit seat. The utility model discloses a switching handle of atomizing formula relief valve hydro-cylinder can realize two-way effect that all has pressure according to actual required adjustment oil feed orbit and the orbit of producing oil.

Description

Switching handle of atomization type safety valve oil cylinder

Technical Field

The utility model relates to a handle, especially a handle is switched to switching of atomizing formula relief valve hydro-cylinder are switched to hydro-cylinder.

Background

An atomization type safety valve oil cylinder is one kind of oil cylinder, which can convert hydraulic energy into mechanical energy, thereby realizing linear reciprocating motion or swinging reciprocating motion, and is a common device in hydraulic tools, when the traditional hydraulic tool is used, an opening and closing structure matched with an oil inlet flow passage opens the oil inlet flow passage, hydraulic oil can enter a piston cavity where the oil cylinder is located through the oil inlet flow passage to push a piston, thereby realizing ejection of a piston rod, the piston rod of the traditional hydraulic tool has strong pressure under the pushing of the hydraulic oil, the work of the hydraulic tool can be effectively ensured, when the piston rod needs to be reset, an opening and closing structure matched with a return oil passage opens the return oil passage, the hydraulic oil flows back through the return oil passage, the piston can be reset through pressure change, but because of lack of pushing of the hydraulic oil, the reset piston rod has extremely weak force, therefore, the tool head of the hydraulic tool pulled by the piston rod is also in a powerless state, and the tool head of some hydraulic tools needs to ensure that the two directions have enough pressure when in use, for example, a hydraulic shear has pressure only when in closed cutting, and is powerless when in open, so that the cutting edge of the hydraulic shear is extremely difficult to reset and is easy to clamp on an object to be cut, and the normal operation of cutting is influenced.

Disclosure of Invention

The utility model aims to solve the current technical problem and provide a switching handle of atomizing formula relief valve hydro-cylinder, it can realize two-way effect that all has pressure according to actual required adjustment oil feed orbit and the orbit of producing oil.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model discloses a switching handle of atomizing formula relief valve hydro-cylinder, including last handle shell, locate the fixed orifices that handle shell was evenly located to the circuit seat and a plurality of circumference that oil that go up in the last handle shell, go up handle shell upper surface and be equipped with the connector rather than the inner space link up mutually, the circuit seat lower extreme that oils is connected with down the oil circuit seat, and oil circuit seat lower extreme is equipped with the oil feed and connects down, and lower oil circuit seat outer wall one side is equipped with the oil feed chamber that link up mutually with the oil feed joint, its characterized in that: the lower surface of the upper handle shell is provided with a rotating hole, and the diameter of the rotating hole is smaller than the inner diameter of the upper handle shell; a lower handle shell is arranged right below the upper handle shell; the upper end of the upper handle shell penetrates into the upper handle shell upwards through the rotating hole and is sleeved outside the lower part of the upper oil circuit seat; the outer wall of the lower end of the upper oil circuit seat is provided with an annular upper clamping step, and the inner wall of the upper end of the lower handle shell is provided with a lower clamping step which is attached to the upper clamping step; the lower oil circuit seat is arranged in the lower handle shell; the oil inlet cavity is positioned on the right rear side of the lower oil way seat, and a first oil through flow passage is arranged on the inner wall of the upper side of the oil inlet cavity; a first oil inlet hole is formed in the right rear side of the upper surface of the upper oil way seat, and a second oil inlet hole is formed in the left rear side of the upper surface of the upper oil way seat; the lower part of the upper oil circuit seat is provided with an adjusting hole which transversely penetrates through the upper oil circuit seat; an opening and closing valve sleeve matched with the adjusting hole is arranged in the adjusting hole; an opening and closing shaft matched with the opening and closing valve sleeve is arranged in the opening and closing valve sleeve; the left end and the right end of the opening and closing shaft respectively penetrate out of the opening and closing valve sleeve; the left side and the right side of the front part of the inner wall of the upper end of the lower handle shell are provided with arc-shaped bulges which are symmetrical with each other; the distance between the end part of the arc-shaped protrusion and the outer wall of the upper oil circuit seat is smaller than the distance between the end surface of the end part of the opening and closing shaft and the inner wall of the upper end of the lower handle shell.

The outer wall of the opening and closing valve sleeve is attached to the inner wall of the adjusting hole, and a first annular groove is formed in the outer wall of the middle of the opening and closing valve sleeve; the outer walls of the left end and the right end of the opening and closing valve sleeve are provided with a second annular groove and a third annular groove which are symmetrical with each other; the outer wall of the opening and closing valve sleeve is provided with a fourth annular groove positioned between the first annular groove and the second annular groove and a fifth annular groove positioned between the first annular groove and the third annular groove; the outer wall of the left part of the opening and closing shaft is provided with an annular first connecting groove, and the outer wall of the right part of the opening and closing shaft is provided with an annular second connecting groove; the left side of the notch of the first connecting groove is communicated with the second annular groove through a plurality of first connecting holes which are uniformly distributed on the circumference; the middle part of the notch of the first connecting groove is communicated with the fourth annular groove through a plurality of second connecting holes which are uniformly distributed on the circumference; the right side of the notch of the first connecting groove is communicated with the left end of the first annular groove through a plurality of third connecting holes which are uniformly distributed on the circumference; the left side of the notch of the second connecting groove is communicated with the right end of the first annular groove through a plurality of fourth connecting holes which are uniformly distributed on the circumference; the middle part of the notch of the second connecting groove is communicated with the fifth annular groove through a plurality of fifth connecting holes which are uniformly distributed on the circumference; the right side of the notch of the second connecting groove is communicated with the left end of the third annular groove through a plurality of sixth connecting holes which are uniformly distributed on the circumference; a second oil through flow passage is arranged on the lower end face of the upper oil way seat, and the first oil through flow passage is communicated with the third annular groove through the second oil through flow passage; the third annular groove is communicated with the first oil inlet hole through a third oil flow passage; a fourth oil passage communicated with the second annular groove is formed in the left rear side of the lower part of the upper oil passage seat; the fourth oil passage is communicated with the second oil passage through a fifth oil passage; and the second annular groove is communicated with the second oil inlet hole through a sixth oil flow passage.

A first oil return hole is formed in the left side of the upper surface of the upper oil circuit seat, and a second oil return hole is formed in the right side of the upper surface of the upper oil circuit seat; the first oil return hole is communicated with the fourth annular groove through the first oil return flow passage; and the second oil return hole is communicated with the fifth annular groove through a second oil return flow passage.

A plurality of clamping blocks which are uniformly distributed in an arc shape are arranged on the rear side of the upper end surface of the lower handle shell; the upper part of the upper oil circuit seat is provided with an annular limiting step, and the upper end surface of the clamping block is attached to the limiting step; an elastic piece sleeved outside the upper oil circuit seat is arranged between the limiting step and the lower handle shell; the elastic piece is annular, and an elastic notch is formed in the rear side of the elastic piece; the two side edges of the elastic notch extend outwards to form an elastic arm, and the two side elastic arms are attached to the outer walls of two sides of one of the clamping blocks; and a limiting shaft is arranged at the left rear side of the upper oil way, and the lower end of the limiting shaft is positioned between the elastic arms at the two sides.

The upper end surface of the lower oil circuit seat is provided with an embedded groove, the lower end of the upper oil circuit seat is embedded in the embedded groove, and the lower end surface of the upper oil circuit seat is attached to the bottom of the embedded groove; and the upper end port of the first oil flow passage is positioned at the bottom of the caulking groove.

An auxiliary groove is formed in one side of the outer wall of the lower oil circuit seat; the lower end face of the upper oil circuit seat is provided with a screw hole; the bottom of the auxiliary groove is provided with a through hole communicated with the screw hole.

The outer wall of the lower handle shell is provided with a plurality of anti-slip grooves which are uniformly distributed in the circumferential direction.

The width of the port at the upper end of the lower handle shell is gradually narrowed from the middle part forwards; the end part of the arc-shaped protrusion is provided with a positioning groove, and the width of the positioning groove is smaller than the diameter of the opening and closing shaft.

The utility model has the advantages that:

compared with the prior art, adopt the utility model discloses the inside runner of oil circuit seat makes hydraulic oil flow in simultaneously to the both sides in the piston chamber of hydro-cylinder or makes hydraulic oil only flow in to one of them side in the piston chamber of hydro-cylinder on the switching handle accessible of atomizing formula relief valve hydro-cylinder of structure, thereby exert pressure or exert pressure to the piston from one of them side from both sides to the piston, when hydraulic oil gets into to the piston intracavity from one of them piston one side, the hydraulic oil of piston opposite side just can automatic oil return, thereby the opposite side hydraulic oil stops the condition that influences the normal removal of piston to the piston when avoiding one side hydraulic oil to promote the piston, under the condition that hydraulic oil can follow the arbitrary one side of piston chamber both sides and get into, can make the piston drive the piston rod all have powerful pressure when ejecting with the withdrawal, thereby realize the effect of two-way pressure.

Drawings

FIG. 1 is a cross-sectional view of the switching handle of the cylinder of the atomizing safety valve of the present invention;

FIG. 2 is an enlarged view of section A of FIG. 1;

FIG. 3 is a schematic view of an angle of the inside when the upper oil gallery and the lower oil gallery are assembled;

FIG. 4 is a schematic view of another angle of the interior of the upper oil gallery base assembled with the lower oil gallery base;

fig. 5 is a perspective view of the switching handle of the oil cylinder of the atomization safety valve of the present invention;

FIG. 6 is a schematic structural view of the elastic member engaged with the latch;

fig. 7 is a perspective view of the lower handle shell.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 to 7, the utility model provides a switching handle of an atomizing safety valve oil cylinder, which comprises an upper handle shell 1, an upper oil way seat 2 arranged in the upper handle shell 1 and a plurality of fixing holes 3 uniformly arranged on the upper handle shell 1 in a circumferential manner, wherein the upper surface of the upper handle shell 1 is provided with a connecting port 4 communicated with the inner space of the upper handle shell, the lower end of the upper oil way seat 2 is connected with a lower oil way seat 5, the lower end of the lower oil way seat 5 is provided with an oil inlet joint 6, one side of the outer wall of the lower oil way seat 5 is provided with an oil inlet cavity 7 communicated with the oil inlet joint 6, the lower surface of the upper handle shell 1 is provided with a rotating hole 8, and the diameter of the rotating hole 8 is smaller than the inner diameter of the upper handle shell 1; a lower handle shell 9 is arranged under the upper handle shell 1; the upper end of the upper handle shell 1 penetrates into the upper handle shell 1 upwards through the rotating hole 8 and is sleeved outside the lower part of the upper oil circuit seat 2; the outer wall of the lower end of the upper oil circuit seat 2 is provided with an annular upper clamping step 10, and the inner wall of the upper end of the lower handle shell is provided with a lower clamping step 52 which is attached to the upper clamping step 10; the lower oil circuit seat 5 is arranged in the lower handle shell 9; the oil inlet cavity 7 is positioned on the right rear side of the lower oil way seat 5, and a first oil through flow passage 11 is arranged on the inner wall of the upper side of the oil inlet cavity 7; a first oil inlet hole 12 is formed in the right rear side of the upper surface of the upper oil way seat 2, and a second oil inlet hole 13 is formed in the left rear side of the upper surface of the upper oil way seat 2; the lower part of the upper oil circuit seat 2 is provided with an adjusting hole 14 which transversely penetrates through the upper oil circuit seat; an opening and closing valve sleeve 15 matched with the adjusting hole 14 is arranged in the adjusting hole; an opening and closing shaft 16 matched with the opening and closing valve sleeve 15 is arranged in the opening and closing valve sleeve 15; the left end and the right end of the opening and closing shaft 16 respectively penetrate out of the opening and closing valve sleeve 15; the left side and the right side of the front part of the inner wall of the upper end of the lower handle shell 9 are provided with arc-shaped protrusions 17 which are symmetrical mutually; the distance between the end part of the arc-shaped bulge 17 and the outer wall of the upper oil circuit seat 2 is smaller than the distance between the end surface of the end part of the opening and closing shaft 16 and the inner wall of the upper end of the lower handle shell 9.

The outer wall of the opening and closing valve sleeve 15 is attached to the inner wall of the adjusting hole 14, and a first annular groove 18 is formed in the outer wall of the middle of the opening and closing valve sleeve 15; the outer walls of the left end and the right end of the opening and closing valve sleeve 15 are provided with a second annular groove 19 and a third annular groove 20 which are symmetrical to each other; the outer wall of the opening and closing valve sleeve 15 is provided with a fourth annular groove 21 positioned between the first annular groove 18 and the second annular groove 19 and a fifth annular groove 22 positioned between the first annular groove 18 and the third annular groove 20; the outer wall of the left part of the opening and closing shaft 16 is provided with an annular first connecting groove 23, and the outer wall of the right part of the opening and closing shaft 16 is provided with an annular second connecting groove 24; the left side of the notch of the first connecting groove 23 is communicated with the second annular groove 19 through a plurality of first connecting holes 25 which are uniformly distributed on the circumference; the middle part of the notch of the first connecting groove 23 is communicated with the fourth annular groove 21 through a plurality of second connecting holes 26 which are uniformly distributed on the circumference; the right side of the notch of the first connecting groove 23 is communicated with the left end of the first annular groove 18 through a plurality of third connecting holes 27 which are uniformly distributed on the circumference; the left side of the notch of the second connecting groove 24 is communicated with the right end of the first annular groove 18 through a plurality of fourth connecting holes 28 which are uniformly distributed on the circumference; the middle part of the notch of the second connecting groove 24 is communicated with the fifth annular groove 22 through a plurality of fifth connecting holes 29 which are uniformly distributed on the circumference; the right side of the notch of the second connecting groove 24 is communicated with the left end of the third annular groove 20 through a plurality of sixth connecting holes 30 which are uniformly distributed on the circumference; a second oil through flow passage 31 is arranged on the lower end face of the upper oil way seat 2, and the first oil through flow passage 11 is communicated with the third annular groove 20 through the second oil through flow passage 31; the third annular groove 20 is communicated with the first oil inlet hole 12 through a third oil flow passage 32; a fourth oil passage 33 communicated with the second annular groove 19 is formed in the lower left rear side of the upper oil passage seat 2; the fourth oil passage 33 is communicated with the second oil passage 31 through a fifth oil passage 34; the second annular groove 19 is communicated with the second oil inlet hole 13 through a sixth oil passage 35.

A first oil return hole 36 is formed in the left side of the upper surface of the upper oil way seat 2, and a second oil return hole 37 is formed in the right side of the upper surface of the upper oil way seat 2; the first oil return hole 36 is communicated with the fourth annular groove 21 through a first oil return flow passage 38; the second oil return hole 37 is communicated with the fifth annular groove 22 through a second oil return flow passage 39.

A plurality of clamping blocks 40 which are uniformly distributed in an arc shape are arranged on the rear side of the upper end surface of the lower handle shell 9; the upper part of the upper oil circuit seat 2 is provided with an annular limiting step 41, and the upper end surface of the fixture block 40 is attached to the limiting step 41; an elastic part 42 sleeved outside the upper oil circuit seat 2 is arranged between the limiting step 41 and the lower handle shell 9; the elastic piece 42 is annular, and the rear side of the elastic piece 42 is provided with an elastic notch 43; two side edges of the elastic notch 43 extend outwards to form an elastic arm 44, and the elastic arms 44 on the two sides are attached to the outer walls on the two sides of one fixture block 40; the rear side of the upper oil circuit base 2 is provided with a limiting shaft 45, and the lower end of the limiting shaft 45 is positioned between the elastic arms 44 at two sides.

The upper end surface of the lower oil circuit seat 5 is provided with an embedded groove 46, the lower end of the upper oil circuit seat 2 is embedded in the embedded groove 46, and the lower end surface of the upper oil circuit seat 2 is attached to the bottom of the embedded groove 46; the upper end port of the first oil flow passage 11 is located at the bottom of the caulking groove 46.

An auxiliary groove 47 is formed in one side of the outer wall of the lower oil way seat 5; the lower end surface of the upper oil circuit seat 2 is provided with a screw hole 48; the bottom of the auxiliary groove 47 is provided with a through hole 49 which is communicated with the screw hole 48.

The outer wall of the lower handle shell 9 is provided with a plurality of anti-skid grooves 50 which are uniformly distributed in the circumference.

The width of the upper end port of the lower handle shell 9 is gradually narrowed from the middle part forwards; the end part of the arc-shaped bulge 17 is provided with a positioning groove 51, and the width of the positioning groove 51 is smaller than the diameter of the opening and closing shaft 16.

The utility model discloses a use method as follows:

before the switching handle is used, the switching handle is directly installed and fixed on a safety valve oil cylinder, only a screw is required to penetrate through a fixing hole 3 and is screwed in a threaded hole on the surface of the oil cylinder, the switching handle and the oil cylinder can be fixed, at the moment, the upper surface of an upper oil circuit seat 2 is pressed by a certain part on the oil cylinder, a first oil inlet hole 12 and a second oil return hole 37 are in a through state with one end of a piston cavity of the oil cylinder, a second oil inlet hole 13 and a first oil return hole 36 are in a through state with the other end of the piston cavity of the oil cylinder, a first oil return flow passage 38 communicated with the first oil return hole 36 and a second oil return passage 39 communicated with the second oil return hole 37 are the same as an oil return flow passage of the existing oil cylinder and are controlled to be opened and closed by an internal opening and closing structure, when the opening and closing structure is opened, the oil return flow passage is in an open state for supplying hydraulic oil to flow, when the opening and closing structure is closed, the oil return flow passage is closed, hydraulic oil can not flow back, and the safety valve oil cylinder is also provided with an opening and closing structure at the position communicated with the first oil inlet hole 12 and the second oil inlet hole 13 to control the opening and closing of the first oil inlet hole 12 and the second oil inlet hole 13, wherein the opening and closing structure is the conventional structure, and like an opening and closing valve core of a safety valve, the opening and closing are realized through rotation, and the mode of automatically opening and closing the plug can also be controlled by the elasticity of a spring.

When the opening/closing shaft 16 does not move to the left and right sides, the first oil return flow passage 38 and the second oil return flow passage 39 are both in a closed state under the action of the opening/closing structure, the first oil inlet hole 12 and the second oil inlet hole 13 are in an open state under the action of the opening/closing structure, the first connecting groove 23, the second annular groove 19, the fourth annular groove 21 and the first annular groove 18 are kept in a mutually communicated state, the second connecting groove 24, the third annular groove 20, the fifth annular groove 22 and the first annular groove 18 are kept in a mutually communicated state, the first oil inlet hole 12, the second oil inlet hole 13 and two ends of a piston cavity of the oil cylinder are in a communicated state, when hydraulic oil flows to the second oil flow passage 31 from the oil inlet cavity 7 to the first oil flow passage 11, the hydraulic oil flows to the second oil flow passage 31, at this time, hydraulic oil that flows to the third annular groove 20 directly from the second oil flow passage 31, and flows to the fourth oil flow passage 33 from the fifth oil flow passage 34, then the hydraulic oil enters the second annular groove 19 through the port at the upper end of the fourth oil flow passage 33, the hydraulic oil entering the third annular groove 20 flows into the first oil inlet hole 12 through the third oil flow passage 32, finally flows out of the first oil inlet hole 12 and enters one side of the piston cavity, one side of the piston is pushed, the hydraulic oil entering the second annular groove 19 enters the second oil inlet hole 13 through the sixth oil flow passage 35, finally flows out of the second oil inlet hole 13 and enters the other side of the piston cavity, the other side of the piston is pushed, pressure balance is formed, the piston is kept still, the hydraulic tool is convenient to stop working temporarily in the working process, at the moment, the second annular groove 19 and the third annular groove 20 are communicated with each other, and finally the first annular groove 18, the second annular groove 19, the third annular groove 20, the fourth annular groove 21 and the fifth annular groove 22 are filled with the hydraulic oil, the pressure balance effect is ensured to the maximum extent.

When the opening/closing shaft 16 moves to the left, the first oil inlet 12 and the first oil return flow passage 38 are in an open state under the action of the respective opening/closing structures, the second oil inlet 13 and the second oil return flow passage 39 are also in a closed state under the action of the respective opening/closing structures, and as the opening/closing shaft 16 moves to the left, the outer wall of the opening/closing shaft shields and seals the inner end orifice of the sixth connection hole 30, the third annular groove 20 is no longer communicated with the second connection groove 24, the outer wall of the opening/closing shaft 16 shields and seals the inner end orifice of the third connection hole 27, and the first annular groove 18 is no longer communicated with the first connection groove 23, so that when the hydraulic oil in the second oil flow passage 31 enters the third annular groove 20, the hydraulic oil in the third annular groove 20 cannot flow to the first annular groove 18 through the second connection groove 24 and then flows to the second annular groove 19, even if a part of the hydraulic oil in the second oil flow passage 31 sequentially passes through the fifth oil flow passage 34, the second oil passage 24, The fourth oil flow passage 33, the second annular groove 19 and the sixth oil flow passage 35 flow to the second oil inlet hole 13, when the second oil inlet hole 13 is closed, hydraulic oil cannot enter the other end of the piston cavity of the oil cylinder through the second oil inlet hole 13, when hydraulic oil enters the third annular groove 20, hydraulic oil enters one end of the piston cavity of the oil cylinder through the third oil flow passage 32 and the first oil inlet hole 12 in sequence, so that the piston is pushed from one side, the hydraulic tool presses in one direction, because oil enters from both sides of the piston cavity simultaneously, both sides of the piston are filled with hydraulic oil, when hydraulic oil enters one end of the piston cavity to push the piston continuously, hydraulic oil on the other side of the piston is extruded, hydraulic oil on the other side returns through the first oil return hole 36, hydraulic oil entering the first oil return hole 36 enters the fourth annular groove 21 through the first oil return flow passage 38, when the inner end opening of the third connecting hole 27 is shielded and sealed by the outer wall of the opening and closing shaft 16, the hydraulic oil in the fourth annular groove 21 can only enter the second annular groove 19 through the first connecting hole 25, then enter the fourth oil flow passage 33, and then return to the second oil flow passage 31 through the fifth oil flow passage 34.

When the opening and closing shaft 16 moves rightwards, the second oil inlet hole 13 and the second oil return flow passage 39 are in an open state under the action of respective opening and closing structures, the first oil inlet hole 12 and the first oil return flow passage 38 are in a closed state under the action of respective opening and closing structures, at the moment, hydraulic oil entering the third annular groove 20 through the second oil return flow passage 31 cannot enter one end of a piston cavity of the oil cylinder through the first oil inlet hole 12, an inner end orifice of the first connecting hole 25 is shielded and sealed by the outer wall of the opening and closing shaft 16 along with the rightward movement of the opening and closing shaft 16, an inner end orifice of the fourth connecting hole 28 is shielded and sealed by the outer wall of the opening and closing shaft 16, hydraulic oil enters the second annular groove 19 through the fourth oil flow passage 33, flows into the second oil inlet hole 13 through the sixth oil flow passage 35 for the first time, and finally enters the other end of the piston cavity of the oil cylinder through the second oil inlet hole 13, meanwhile, along with the movement of the piston, hydraulic oil on one side of the piston is squeezed into the second oil return hole 37, the hydraulic oil entering the second oil return hole 37 flows into the fifth annular groove 22 through the second oil return flow passage 39, and under the condition that the inner end of the fourth connecting hole 28 is shielded and sealed by the outer wall of the opening and closing shaft 16, the hydraulic oil in the fifth annular groove 22 sequentially passes through the fifth connecting hole 29, the second connecting groove 24 and the sixth connecting hole 30, enters the third annular groove 20 and finally flows into the second oil return flow passage 39 for oil return.

In conclusion, can know, the utility model discloses the runner of 2 inside oil circuit seats on the accessible makes hydraulic oil flow in simultaneously to the both sides in the piston chamber of hydro-cylinder or make hydraulic oil only flow in to one of them side in the piston chamber of hydro-cylinder, thereby exert pressure or exert pressure to the piston from one of them side from both sides, when hydraulic oil enters into to the piston intracavity from one of them piston side, the hydraulic oil of piston opposite side just can automatic oil return, thereby the opposite side hydraulic oil blocks the condition that influences the normal removal of piston to the piston when avoiding one side hydraulic oil to promote the piston, under the condition that hydraulic oil can follow the arbitrary one side entering in piston chamber both sides, can make the piston drive piston rod all have powerful pressure when ejecting and retracting, thereby realize the effect of two-way pressure of exerting.

When the left and right movement of the open-close shaft 16 needs to be controlled, only one hand is needed to hold the upper handle shell 1, the other hand is needed to hold the lower handle shell 9, and then the lower handle shell 9 is rotated, when the lower handle shell 9 rotates clockwise, the arc-shaped bulge 17 positioned at the left front side can extrude the left end of the open-close shaft 16, so that the open-close shaft 16 moves rightwards, when the lower handle shell 9 rotates anticlockwise, the arc-shaped bulge 17 positioned at the right front side can extrude the right end of the open-close shaft 16, so that the open-close shaft 16 moves leftwards, no matter the lower handle shell 9 rotates clockwise or anticlockwise, the clamping block 40 at the rear side of the upper end surface of the lower handle shell 9 can extrude the elastic arm 44 at one side, at the moment, the elastic arm 44 at the other side can be limited by the fixed limiting shaft, so that the elastic piece 42 is pulled to generate elasticity, when a user releases the lower handle shell 9, the lower handle shell 9 can be quickly reset under the elastic action of the elastic piece 42, the opening and closing shaft 16 is restored to the original state.

The end part of the arc-shaped bulge 17 is provided with a positioning groove 51, the width of the positioning groove 51 is smaller than the diameter of the opening and closing shaft 16, when the end part of the arc-shaped bulge 17 is contacted with the end surface of the end part of the opening and closing shaft 16, the positioning groove 51 is changed to form a plane step, a user rotating the lower handle shell 9 can feel obvious positioning feeling, and the user can accurately control the left and right movement of the opening and closing shaft 16.

Lower oil circuit seat 5 up end is equipped with an caulking groove 46, and 2 lower extremes on the oil circuit seat inlay in caulking groove 46, terminal surface and the caulking groove 46 tank bottom of laminating mutually under the oil circuit seat 2, first logical oil runner 11 upper end port is located the caulking groove 46 tank bottom, and this kind of fixed mode can further guarantee down the steadiness between oil circuit seat 5 and the oil circuit seat 2 that oils.

An auxiliary groove 47 is formed in one side of the outer wall of the lower oil circuit seat 5, and a screw hole 48 is formed in the lower end face of the upper oil circuit seat 2; the bottom of the auxiliary groove 47 is provided with a through hole 49 communicated with the screw hole 48, and the lower oil circuit seat 5 and the upper oil circuit seat 2 can be fixed only by penetrating a screw through the through hole 49 and screwing the screw into the screw hole 48, so that the fixing mode is convenient to disassemble and assemble.

The outer wall of the lower handle shell 9 is provided with a plurality of anti-slip grooves 50 which are uniformly distributed in the circumference, and the existence of the anti-slip grooves 50 can effectively improve the friction force between a hand and the lower handle shell 9, so that the lower handle shell 9 can be conveniently rotated.

Claims (8)

1. The utility model provides an atomizing formula relief valve hydro-cylinder's switching handle, includes the handle shell, locate the interior circuit seat that oils of handle shell and a plurality of fixed orificess that evenly locate the handle shell that are the circumference, go up the handle shell upper surface and be equipped with the connector rather than the inner space link up mutually, the circuit seat lower extreme that oils is connected with down the circuit seat, lower circuit seat lower extreme is equipped with the oil feed and connects, lower circuit seat outer wall one side is equipped with the oil feed chamber that link up mutually with the oil feed joint, its characterized in that: the lower surface of the upper handle shell is provided with a rotating hole, and the diameter of the rotating hole is smaller than the inner diameter of the upper handle shell; a lower handle shell is arranged right below the upper handle shell; the upper end of the upper handle shell penetrates into the upper handle shell upwards through the rotating hole and is sleeved outside the lower part of the upper oil circuit seat; the outer wall of the lower end of the upper oil circuit seat is provided with an annular upper clamping step, and the inner wall of the upper end of the lower handle shell is provided with a lower clamping step which is attached to the upper clamping step; the lower oil circuit seat is arranged in the lower handle shell; the oil inlet cavity is positioned on the right rear side of the lower oil way seat, and a first oil through flow passage is arranged on the inner wall of the upper side of the oil inlet cavity; a first oil inlet hole is formed in the right rear side of the upper surface of the upper oil way seat, and a second oil inlet hole is formed in the left rear side of the upper surface of the upper oil way seat; the lower part of the upper oil circuit seat is provided with an adjusting hole which transversely penetrates through the upper oil circuit seat; an opening and closing valve sleeve matched with the adjusting hole is arranged in the adjusting hole; an opening and closing shaft matched with the opening and closing valve sleeve is arranged in the opening and closing valve sleeve; the left end and the right end of the opening and closing shaft respectively penetrate out of the opening and closing valve sleeve; the left side and the right side of the front part of the inner wall of the upper end of the lower handle shell are provided with arc-shaped bulges which are symmetrical with each other; the distance between the end part of the arc-shaped protrusion and the outer wall of the upper oil circuit seat is smaller than the distance between the end surface of the end part of the opening and closing shaft and the inner wall of the upper end of the lower handle shell.

2. The switching handle of an atomizing safety valve oil cylinder according to claim 1, characterized in that: the outer wall of the opening and closing valve sleeve is attached to the inner wall of the adjusting hole, and a first annular groove is formed in the outer wall of the middle of the opening and closing valve sleeve; the outer walls of the left end and the right end of the opening and closing valve sleeve are provided with a second annular groove and a third annular groove which are symmetrical with each other; the outer wall of the opening and closing valve sleeve is provided with a fourth annular groove positioned between the first annular groove and the second annular groove and a fifth annular groove positioned between the first annular groove and the third annular groove; the outer wall of the left part of the opening and closing shaft is provided with an annular first connecting groove, and the outer wall of the right part of the opening and closing shaft is provided with an annular second connecting groove; the left side of the notch of the first connecting groove is communicated with the second annular groove through a plurality of first connecting holes which are uniformly distributed on the circumference; the middle part of the notch of the first connecting groove is communicated with the fourth annular groove through a plurality of second connecting holes which are uniformly distributed on the circumference; the right side of the notch of the first connecting groove is communicated with the left end of the first annular groove through a plurality of third connecting holes which are uniformly distributed on the circumference; the left side of the notch of the second connecting groove is communicated with the right end of the first annular groove through a plurality of fourth connecting holes which are uniformly distributed on the circumference; the middle part of the notch of the second connecting groove is communicated with the fifth annular groove through a plurality of fifth connecting holes which are uniformly distributed on the circumference; the right side of the notch of the second connecting groove is communicated with the left end of the third annular groove through a plurality of sixth connecting holes which are uniformly distributed on the circumference; a second oil through flow passage is arranged on the lower end face of the upper oil way seat, and the first oil through flow passage is communicated with the third annular groove through the second oil through flow passage; the third annular groove is communicated with the first oil inlet hole through a third oil flow passage; a fourth oil passage communicated with the second annular groove is formed in the inner left rear side of the lower part of the upper oil passage seat; the fourth oil passage is communicated with the second oil passage through a fifth oil passage; and the second annular groove is communicated with the second oil inlet hole through a sixth oil flow passage.

3. The switching handle of an atomizing safety valve oil cylinder according to claim 2, characterized in that: a first oil return hole is formed in the left side of the upper surface of the upper oil way seat, and a second oil return hole is formed in the right side of the upper surface of the upper oil way seat; the first oil return hole is communicated with the fourth annular groove through the first oil return flow passage; and the second oil return hole is communicated with the fifth annular groove through a second oil return flow passage.

4. The switching handle of an atomizing safety valve oil cylinder according to claim 1, characterized in that: a plurality of clamping blocks which are uniformly distributed in an arc shape are arranged on the rear side of the upper end surface of the lower handle shell; the upper part of the upper oil circuit seat is provided with an annular limiting step, and the upper end surface of the clamping block is attached to the limiting step; an elastic piece sleeved outside the upper oil circuit seat is arranged between the limiting step and the lower handle shell; the elastic piece is annular, and an elastic notch is formed in the rear side of the elastic piece; the two side edges of the elastic notch extend outwards to form an elastic arm, and the two side elastic arms are attached to the outer walls of two sides of one of the clamping blocks; and a limiting shaft is arranged at the left rear side of the upper oil way, and the lower end of the limiting shaft is positioned between the elastic arms at the two sides.

5. The switching handle of an aerosol safety valve cylinder according to claim 1, wherein: the upper end surface of the lower oil circuit seat is provided with an embedded groove, the lower end of the upper oil circuit seat is embedded in the embedded groove, and the lower end surface of the upper oil circuit seat is attached to the bottom of the embedded groove; and the upper end port of the first oil flow passage is positioned at the bottom of the caulking groove.

6. The switching handle of an atomized safety valve cylinder according to claim 5, characterized in that: an auxiliary groove is formed in one side of the outer wall of the lower oil circuit seat; the lower end face of the upper oil circuit seat is provided with a screw hole; the bottom of the auxiliary groove is provided with a through hole communicated with the screw hole.

7. The switching handle of an atomizing safety valve oil cylinder according to claim 1, characterized in that: the outer wall of the lower handle shell is provided with a plurality of anti-slip grooves which are uniformly distributed in the circumferential direction.

8. The switching handle of an atomizing safety valve oil cylinder according to claim 1, characterized in that: the width of the port at the upper end of the lower handle shell is gradually narrowed from the middle part forwards; the end part of the arc-shaped protrusion is provided with a positioning groove, and the width of the positioning groove is smaller than the diameter of the opening and closing shaft.

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