阅读说明：本技术 液压榨油装置 (Hydraulic oil press ) 是由 陈良 于 2020-12-14 设计创作，主要内容包括：本发明涉及香油制备设备领域,具体的说是液压榨油装置,包括主体、压缸、转动机构、限位机构、液压机构和切换机构；通过转动机构的设置进而能够自动转动密封压缸的部件,降低了添料时的操作难度,限位机构设于压缸的顶端,通过限位机构的设置进而可以对密封压缸的部件进行自动限位固定,减少了前期添加原料时的操作时间,通过液压机构的设置进而能够将液压油泵送到压缸的内部,方便压缸内部的压榨部件抵触原料出油,切换机构设于切换机构设于主体的内部,通过切换机构的设置进而便于切换压缸内部压榨部件的工作状态。(The invention relates to the field of sesame oil preparation equipment, in particular to a hydraulic oil pressing device which comprises a main body, a pressure cylinder, a rotating mechanism, a limiting mechanism, a hydraulic mechanism and a switching mechanism, wherein the main body is provided with a pressure cylinder; the part that can and then automatic rotation sealing pressure jar through slewing mechanism's setting, the operation degree of difficulty when adding the material has been reduced, stop gear locates the top of jar of pressing, and then can carry out automatic spacing fixed to the part of sealed pressure jar through stop gear's setting, the operating time when having reduced earlier stage interpolation raw materials, and then can send the inside of jar to the jar of pressing with hydraulic oil pump through hydraulic pressure mechanism's setting, the inside part of pressing of jar of convenient pressure is contradicted the raw materials and is appeared oil, switching mechanism locates the inside of main part, and then the operating condition of the inside part of pressing of jar of being convenient for switch through switching mechanism's setting.)

1. Hydraulic pressure device that extracts oil, its characterized in that: including main part (1), pressure jar (2), slewing mechanism (3), stop gear (4), hydraulic pressure mechanism (5) and switching mechanism (6), install on the top of main part (1) press jar (2), it is right to press jar (2) to play supporting role and convenient toward press jar (2) inside raw materials that adds slewing mechanism (3) are located the top of main part (1), it is right to be used for slewing mechanism (3) inside seal part carries out spacing fixed stop gear (4) are located press the top of jar (2), be used for doing press jar (2) to extract oil and provide hydraulic power hydraulic pressure mechanism (5) are located the inside of main part (1), be used for conveniently switching the oil circuit switching mechanism (6) are located the inside of main part (1).

2. The hydraulic oil expeller device of claim 1, wherein: slewing mechanism (3) are including first support column (31), second support column (32), fixed plate (33) and open close plate (34), the top of pressing jar (2) is fixed with fixed plate (33), fixed plate (33) with be fixed with between main part (1) first support column (31) with second support column (32), the top of first support column (31) is equipped with open close plate (34), the one end block of open close plate (34) in second support column (32) and the other end rotate in first support column (31).

3. The hydraulic oil expeller device of claim 2, wherein: slewing mechanism (3) still include first motor (35), first gear (36), second gear (37) and ball (38), the top of first support column (31) is fixed with first gear (36), first gear (36) rotate in the inside and one side meshing of open close plate (34) have second gear (37), the top of second gear (37) is equipped with first motor (35), first motor (35) install in the top of open close plate (34), just the bottom mounting of first motor (35) is in the top of second gear (37).

4. The hydraulic oil expeller device of claim 2, wherein: stop gear (4) are including ring gear (41), second motor (42), worm (43), turbine (44) and third gear (45), the top outside threaded connection of second support column (32) has ring gear (41), install on the top of open close plate (34) second motor (42), second motor (42) are located open close plate (34) inside one end is fixed with worm (43), the one side meshing of worm (43) has turbine (44), turbine (44) rotate in inside and the bottom mounting of open close plate (34) have third gear (45), the one side meshing of third gear (45) in ring gear (41).

5. The hydraulic oil expeller device of claim 4, wherein: the hydraulic mechanism (5) comprises a liquid storage cavity (51), a liquid supply tank (52), a piston (53), a connecting rod (54), a flywheel (55), a third motor (56), first plug balls (57) and first springs (58), the liquid storage cavity (51) is arranged in the main body (1), the liquid supply tank (52) is communicated with one side of the bottom end of the liquid storage cavity (51), the two first plug balls (57) and the two first springs (58) are arranged in the liquid supply tank (52), the first plug balls (57) are connected to the inside of the liquid supply tank (52) in a sliding mode, one end of each first spring (58) is fixed to the inner wall of the liquid supply tank (52), the other end of each first plug ball (57) is fixed to the side wall of the liquid supply tank (52), the piston (53) slides in the liquid supply tank (52), and the third motor (56) is arranged at one end of the piston (53), the third motor (56) is mounted inside the main body (1), one end of the third motor is fixed with the flywheel (55), and the connecting rod (54) rotates between the flywheel (55) and the piston (53).

6. The hydraulic oil expeller device of claim 5, wherein: the switching mechanism (6) comprises a valve body (61), a first communicating hole (62), a second communicating hole (63), a liquid returning groove (64), a liquid outlet groove (65), a second plug ball (66), a second spring (67) and a telescopic oil cylinder (68), the valve body (61) is arranged at the top end of the liquid supplying groove (52), the valve body (61) slides in the main body (1), the telescopic oil cylinder (68) is fixed at one end of the valve body, the telescopic oil cylinder (68) is installed in the main body (1), the first communicating hole (62) and the second communicating hole (63) are arranged in the valve body (61), the second plug ball (66) slides in the first communicating hole (62) and the second communicating hole (63) respectively, the second spring (67) is fixed in the second communicating hole (66), and one end of the second spring (67) is fixed at one side of the second plug ball (66), the liquid outlet groove (65) is communicated between the first communicating hole (62) and the pressure cylinder (2), the top end of the liquid supply groove (52) is communicated with the bottom end of the first communicating hole (62), and the bottom end of the second communicating hole (63) is communicated with the liquid return groove (64).

Technical Field

The invention relates to the field of sesame oil preparation equipment, in particular to a hydraulic oil pressing device.

Background

Sesame oil, also called sesame oil and sesame oil, is a traditional Chinese seasoning vegetable oil, is grease squeezed from sesame and has a strong sesame frying flavor. The sesame oil has pure flavor and long aftertaste, and is an essential good seasoning product in daily life. Whether cold dishes, hot dishes or soup, it can be called a pen for ordering sunny food. The high-quality sesame oil is generally brownish red, orange yellow or brownish yellow, has no turbid substances, and has strong sesame fragrance and no peculiar smell.

The hot pressing mode and the cold pressing mode are generally adopted in the field of sesame oil pressing preparation, sesame oil pressed through the hot pressing process is mellow in smell and thick in color, the fragrance of the sesame oil obtained through the cold pressing is relatively weak, the color of the sesame oil is clear, the common process of the sesame oil pressed through the two modes is relatively complicated, rapeseed is required to be fried to a proper temperature before the sesame oil is pressed through hot pressing, and a plurality of filtering procedures are required through the cold pressing, so that the pressing efficiency is reduced, and therefore a hydraulic oil pressing device is provided.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a hydraulic oil pressing device.

The technical scheme adopted by the invention for solving the technical problems is as follows: hydraulic pressure device that extracts oil, including main part, pressure jar, slewing mechanism, stop gear, hydraulic pressure mechanism and switching mechanism, install the top of main part press the jar, it is right to press the jar to play supporting role and convenient toward press the inside raw materials that adds of jar slewing mechanism locates the top of main part is right slewing mechanism inside seal part carries out spacing fixed stop gear locates the top of jar presses the jar, be used for doing press the jar to extract oil and provide hydraulic power hydraulic pressure mechanism locates the inside of main part is used for conveniently switching the oil circuit switching mechanism locates the inside of main part.

Specifically, slewing mechanism includes first support column, second support column, fixed plate and open-close plate, the top of pressing the jar is fixed with the fixed plate, the fixed plate with be fixed with between the main part first support column with the second support column, the top of first support column is equipped with the open-close plate, the one end block of open-close plate in second support column and the other end rotate in first support column.

Specifically, slewing mechanism still includes first motor, first gear, second gear and ball, the top of first support column is fixed with first gear, first gear rotate in the inside and one side meshing of open-close plate has the second gear, the top of second gear is equipped with first motor, first motor install in the top of open-close plate, just the bottom mounting of first motor is in the top of second gear.

Specifically, stop gear includes ring gear, second motor, worm, turbine and third gear, the top outside threaded connection of second support column has the ring gear, install on the top of open-close plate the second motor, the second motor is located the inside one end of open-close plate is fixed with the worm, one side meshing of worm has the turbine, the turbine rotate in the inside and the bottom mounting of open-close plate have the third gear, one side meshing of third gear in the ring gear.

Specifically, hydraulic pressure mechanism includes stock solution chamber, feed tank, piston, connecting rod, flywheel, third motor, first stopper ball and first spring, the inside of main part is equipped with the stock solution chamber, stock solution chamber bottom one side intercommunication has the feed tank, the inside of feed tank is equipped with two first stopper ball and two first spring, first stopper ball sliding connection in the inside of feed tank, the one end of first spring is fixed in on the inner wall of feed tank and the other end is fixed in on the lateral wall of first stopper ball, the inside of feed tank slides has the piston, the one end of piston is equipped with the third motor, the third motor install in the inside of main part and one end are fixed with the flywheel, the flywheel with rotate between the piston and have the connecting rod.

Specifically, the switching mechanism comprises a valve body, a first communicating hole, a second communicating hole, a liquid return tank, a liquid outlet tank, a second plug ball, a second spring and a telescopic oil cylinder, the top end of the liquid supply tank is provided with the valve body, the valve body slides in the main body, one end of the valve body is fixed with the telescopic oil cylinder, the telescopic oil cylinder is arranged in the main body, the first communicating hole and the second communicating hole are arranged in the valve body, the first communication hole and the second communication hole are respectively provided with one second plug ball in a sliding way and are respectively fixed with one second spring, one end of the second spring is fixed on one side of the second plug ball, the liquid outlet groove is communicated between the first communication hole and the pressure cylinder, the top end of the liquid supply tank is communicated with the bottom end of the first communicating hole, and the bottom end of the second communicating hole is communicated with the liquid return tank.

The invention has the beneficial effects that:

(1) the hydraulic oil press device of the invention has the advantages that the rotating mechanism is arranged at the top end of the main body, the components of the sealing pressure cylinder can be automatically rotated through the arrangement of the rotating mechanism, the operation difficulty during material adding is reduced, the limiting mechanism is arranged at the top end of the pressure cylinder, the components of the sealing pressure cylinder can be automatically limited and fixed through the arrangement of the limiting mechanism, the operation time during the previous raw material adding is reduced, namely, the top end of the pressure cylinder is fixedly connected with the bottom end of the fixed plate, in order to increase the connection strength between the pressure cylinder and the fixed plate, the first supporting column and the second supporting column are fixedly connected between the fixed plate and the main body, the opening plate is rotatably connected with the top end of the first supporting column, the top end of the pressure cylinder can be sealed after the raw material is put into the pressure cylinder through the arrangement of the opening plate, the raw material is arranged, the open close plate is generally thicker and heavier, when oil is pressed, the open close plate is frequently rotated by manpower, the first motor can be started at the moment, the first motor is continuously meshed with the first gear through the second gear to rotate, the open close plate deflects to one side of the fixed plate along with the rotation of the second gear, raw materials can be injected into the oil cylinder at the moment, and then the components of the sealing pressure cylinder can be automatically rotated, the operation difficulty in material adding is reduced, namely, when the open close plate is deflected, firstly, the conflict between the gear ring and the open close plate needs to be relieved, firstly, the second motor is started, the second motor drives the worm at one end to be meshed with the turbine to rotate, because the turbine is fixedly connected with the third gear, the turbine synchronously causes the third gear to rotate when rotating, the outer side of the other side of the third gear is meshed with the gear ring to rotate, and the gear ring is in threaded connection with the second supporting column, the displacement takes place for the ring gear after rotating to cause the ring gear not at the open-close board of contradicting, can rotate the open-close board this moment through starting the automation of first motor, and then can carry out automatic spacing fixed to the part of sealed jar of pressing, operating time when having reduced the interpolation raw materials in earlier stage.

(2) The hydraulic oil press device is characterized in that the hydraulic mechanism is arranged in the main body, the hydraulic oil can be pumped into the pressure cylinder through the arrangement of the hydraulic mechanism, so that the pressing part in the pressure cylinder can conveniently press raw materials to produce oil, the switching mechanism is arranged in the main body, the working state of the pressing part in the pressure cylinder can be conveniently switched through the arrangement of the switching mechanism, namely, after the raw materials are placed in the pressure cylinder, the third motor is started to drive the flywheel at one end to rotate, the flywheel drives the piston at one end to slide in the liquid supply tank in a reciprocating manner through the connecting rod, under the cooperation of the two first plug balls and the first spring, negative pressure is generated in the liquid supply cavity, hydraulic oil in the liquid storage cavity enters the switching mechanism through the liquid supply tank, so that the hydraulic oil can be pumped into the pressure cylinder, so that the pressing part in the pressure cylinder can conveniently press raw materials to produce oil, because the inside hydraulic oil that flows of feed tank enters into the drain tank behind the inside first intercommunicating pore of valve body promptly, hydraulic oil finally enters into the inside of pressing the jar and participates in and squeezes the work, after squeezing the completion, the flexible hydro-cylinder slide valve body of operation for the one end of second intercommunicating pore is to going out the drain tank and the other end is to the liquid return tank, thereby accomplishes the purpose that hydraulic oil retrieved the stock solution chamber, and then is convenient for switch and presses the operating condition that the part was squeezed to the jar inside.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of an overall structure of a preferred embodiment of a hydraulic oil press according to the present invention;

FIG. 2 is a schematic structural view of the rotating mechanism shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the rotating mechanism and the limiting mechanism shown in FIG. 1;

fig. 4 is a schematic view of a connection structure of the rotating mechanism, the hydraulic mechanism, and the switching mechanism shown in fig. 1;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is an enlarged view of the portion B shown in fig. 4.

In the figure: 1. the hydraulic control device comprises a main body, 2, a hydraulic cylinder, 3, a rotating mechanism, 31, a first supporting column, 32, a second supporting column, 33, a fixing plate, 34, a split plate, 35, a first motor, 36, a first gear, 37, a second gear, 38, a ball, 4, a limiting mechanism, 41, a gear ring, 42, a second motor, 43, a worm, 44, a turbine, 45, a third gear, 5, a hydraulic mechanism, 51, a liquid storage cavity, 52, a liquid supply tank, 53, a piston, 54, a connecting rod, 55, a flywheel, 56, a third motor, 57, a first plug ball, 58, a first spring, 6, a switching mechanism, 61, a valve body, 62, a first through hole, 63, a second through hole, 64, a liquid return tank, 65, a liquid outlet tank, 66, a second plug ball, 67, a second spring, 68 and a telescopic oil cylinder.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the hydraulic oil press device according to the present invention includes a main body 1, a pressure cylinder 2, a rotating mechanism 3, a limiting mechanism 4, a hydraulic mechanism 5 and a switching mechanism 6, wherein the pressure cylinder 2 is installed at a top end of the main body 1, the rotating mechanism 3 for supporting the pressure cylinder 2 and facilitating the addition of raw materials into the pressure cylinder 2 is installed at a top end of the main body 1, the limiting mechanism 4 for limiting and fixing a sealing member inside the rotating mechanism 3 is installed at a top end of the pressure cylinder 2, the hydraulic mechanism 5 for providing hydraulic power for pressing oil in the pressure cylinder 2 is installed inside the main body 1, and the switching mechanism 6 for facilitating the switching of an oil path is installed inside the main body 1.

Concretely, slewing mechanism 3 includes first support column 31, second support column 32, fixed plate 33 and open-close plate 34, the top of pressing jar 2 is fixed with fixed plate 33, fixed plate 33 with be fixed with between the main part 1 first support column 31 with second support column 32, the top of first support column 31 is equipped with open-close plate 34, open-close plate 34's one end block in second support column 32 and the other end rotate in first support column 31, because press the top fixed connection of jar 2 in the bottom of fixed plate 33, in order to increase press jar 2 with joint strength between fixed plate 33, fixed plate 33 with still fixedly connected with between the main part 1 first support column 31 with second support column 32, open-close plate 34 rotate connect in the top of first support column 31, through thereby open-close plate 34's setting can be past press jar 2 inside put into raw materials back seal institute The top end of the press cylinder 2 functions to dispose the raw material inside the press cylinder 2.

Specifically, the rotating mechanism 3 further includes a first motor 35, a first gear 36, a second gear 37 and a ball 38, the top end of the first supporting column 31 is fixed with the first gear 36, the first gear 36 rotates in the inside of the opening plate 34 and one side of the opening plate is engaged with the second gear 37, the top end of the second gear 37 is provided with the first motor 35, the first motor 35 is installed on the top end of the opening plate 34, and the bottom end of the first motor 35 is fixed on the top end of the second gear 37, because the hydraulic power of the pressure cylinder 2 is strong, the opening plate 34 is generally thicker and heavier, when oil is pressed, the opening plate 34 is frequently rotated by manpower, so that the force is more applied, at this time, the first motor 35 can be started, and the first motor 35 is continuously engaged with the first gear 36 through the second gear 37, the opening plate 34 is deflected to one side of the fixed plate 33 along with the rotation of the second gear 37, and at this time, the raw material can be injected into the cylinder 2, and further, the components of the cylinder 2 can be automatically rotated and sealed, thereby reducing the operation difficulty during the material adding process.

Specifically, stop gear 4 includes ring gear 41, second motor 42, worm 43, turbine 44 and third gear 45, the top outside threaded connection of second support column 32 has ring gear 41, install the top of open plate 34 second motor 42, second motor 42 is located the inside one end of open plate 34 is fixed with worm 43, the meshing of one side of worm 43 has turbine 44, turbine 44 rotate in the inside of open plate 34 and bottom mounting have third gear 45, the meshing of one side of third gear 45 in ring gear 41, because fixed connection between turbine 44 and third gear 45, turbine 44 causes in step when rotating third gear 45 rotates, then the meshing of the opposite side of third gear 45 the outside of ring gear 41 rotates, ring gear 41 with threaded connection between the second support column 32, after rotating the ring gear 41 takes place the displacement to cause ring gear 41 is not contradicting open close plate 34, can be through starting this moment first motor 35 is automatic to be rotated open close plate 34, and then can be to sealed the part of pressing jar 2 carries out automatic spacing fixed, the operating time when having reduced the raw materials that adds earlier stage.

Specifically, the hydraulic mechanism 5 includes a liquid storage cavity 51, a liquid supply tank 52, a piston 53, a connecting rod 54, a flywheel 55, a third motor 56, a first plunger 57 and a first spring 58, the liquid storage cavity 51 is disposed inside the main body 1, the liquid supply tank 52 is communicated with one side of the bottom end of the liquid storage cavity 51, two first plungers 57 and two first springs 58 are disposed inside the liquid supply tank 52, the first plungers 57 are slidably connected inside the liquid supply tank 52, one end of the first spring 58 is fixed on the inner wall of the liquid supply tank 52, the other end of the first spring is fixed on the side wall of the first plunger 57, the piston 53 slides inside the liquid supply tank 52, one end of the piston 53 is provided with the third motor 56, the third motor 56 is mounted inside the main body 1, one end of the third motor 56 is fixed with the flywheel 55, the connecting rod 54 rotates between the flywheel 55 and the piston 53, because after the raw materials are well arranged to the pressure cylinder 2, the third motor 56 is started, then the third motor 56 drives the flywheel 55 at one end to rotate, then the flywheel 55 drives the piston 53 at one end to slide in the liquid supply tank 52 in a reciprocating manner through the connecting rod 54, under the cooperation of the first plug ball 57 and the first spring 58, negative pressure is generated in the liquid supply tank 52, then the hydraulic oil in the liquid storage chamber 51 enters the switching mechanism 6 through the liquid supply tank 52, and then the hydraulic oil can be pumped to the inside of the pressure cylinder 2, so that the pressing part in the pressure cylinder 2 can conveniently press the raw materials to output oil.

Specifically, the switching mechanism 6 includes a valve body 61, a first communicating hole 62, a second communicating hole 63, a liquid returning groove 64, a liquid discharging groove 65, a second ball plug 66, a second spring 67 and a telescopic cylinder 68, the valve body 61 is disposed at the top end of the liquid supplying groove 52, the valve body 61 slides in the main body 1, one end of the telescopic cylinder 68 is fixed at one end of the valve body 61, the telescopic cylinder 68 is mounted in the main body 1, the first communicating hole 62 and the second communicating hole 63 are disposed in the valve body 61, the second ball plug 66 slides in the first communicating hole 62 and the second communicating hole 63, the second spring 67 is fixed in the second communicating hole 62, one end of the second spring 67 is fixed at one side of the second ball plug 66, the liquid discharging groove 65 is communicated between the first communicating hole 62 and the hydraulic cylinder 2, the top end of the liquid supplying groove 52 is communicated with the bottom end of the first communicating hole 62, the bottom end of the second communicating hole 63 is communicated with the liquid returning groove 64, because the hydraulic oil flowing in the liquid supply groove 52 enters the liquid outlet groove 65 after passing through the first communicating hole 62 in the valve body 61, the hydraulic oil finally enters the inside of the pressure cylinder 2 to participate in squeezing work, after squeezing is completed, the telescopic oil cylinder 68 is operated to slide the valve body 61, so that one end of the second communicating hole 63 is butted with the liquid outlet groove 65, and the other end is butted with the liquid returning groove 64, thereby completing the purpose of recovering the hydraulic oil to the liquid storage cavity 51, and further facilitating the switching of the working state of the squeezing components in the pressure cylinder 2.

When the invention is used, because the top end of the pressure cylinder 2 is fixedly connected with the bottom end of the fixed plate 33, in order to increase the connecting strength between the pressure cylinder 2 and the fixed plate 33, the fixed plate 33 and the main body 1 are also fixedly connected with the first supporting column 31 and the second supporting column 32, the opening plate 34 is rotatably connected with the top end of the first supporting column 31, the top end of the pressure cylinder 2 can be sealed after raw materials are put into the pressure cylinder 2 through the arrangement of the opening plate 34, and the function of placing the raw materials in the pressure cylinder 2 is achieved; because the hydraulic power of the hydraulic cylinder 2 is strong, the opening plate 34 is generally thick and heavy, when oil is pressed, the opening plate 34 is frequently rotated by manpower, so that the oil is relatively hard, at the moment, the first motor 35 can be started, the first motor 35 is continuously meshed with the first gear 36 through the second gear 37 to rotate, the opening plate 34 deflects to one side of the fixed plate 33 along with the rotation of the second gear 37, at the moment, raw materials can be injected into the oil cylinder 2, and then the components of the sealing hydraulic cylinder 2 can be automatically rotated, so that the operation difficulty in material adding is reduced; because the worm wheel 44 is fixedly connected with the third gear 45, the worm wheel 44 synchronously causes the third gear 45 to rotate when rotating, the other side of the third gear 45 is meshed with the outer side of the gear ring 41 to rotate, the gear ring 41 is in threaded connection with the second supporting column 32, and the gear ring 41 is displaced after rotating, so that the gear ring 41 does not abut against the opening plate 34, at the moment, the opening plate 34 can be automatically rotated by starting the first motor 35, the parts of the sealing pressure cylinder 2 can be automatically limited and fixed, and the operation time during the previous raw material adding process is reduced; after the raw materials are arranged in the pressure cylinder 2, the third motor 56 is started, the third motor 56 drives the flywheel 55 at one end to rotate, the flywheel 55 drives the piston 53 at one end to slide in the liquid supply tank 52 in a reciprocating manner through the connecting rod 54, negative pressure is generated in the liquid supply chamber 52 under the matching of the two first plug balls 57 and the first spring 58, hydraulic oil in the liquid storage chamber 51 enters the switching mechanism 6 through the liquid supply tank 52, the hydraulic oil can be pumped into the pressure cylinder 2, and a squeezing part in the pressure cylinder 2 is convenient to press the raw materials to discharge the oil; because the hydraulic oil flowing in the liquid supply tank 52 enters the liquid outlet tank 65 through the first communication hole 62 in the valve body 61, the hydraulic oil finally enters the inside of the hydraulic cylinder 2 to participate in squeezing, after squeezing is completed, the telescopic cylinder 68 is operated to slide the valve body 61, so that one end of the second communication hole 63 is butted with the liquid outlet tank 65, and the other end is butted with the liquid return tank 64, thereby completing the purpose of recovering the hydraulic oil to the liquid storage cavity 51, and further facilitating switching the working state of the squeezing component in the hydraulic cylinder 2.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.