Direct drive type valve body device for piston type filling

Abstract

The utility model discloses a direct-drive type valve body device for piston type filling. The direct-drive type valve body device comprises a valve body component, a connecting hoop, a valve element component, an air cylinder fixing flange and a driving component. The valve body part is provided with a valve seat, a cavity, a rear flange, an upper flange, a front flange, a right flange and a positioning clamp; the valve element component is provided with a left sealing ring groove, a right sealing ring groove, an upper U-shaped straight through hole, a lower U-shaped straight through hole, a front straight through hole, a rear straight through hole, a buckle groove, a buckle, a positioning circular truncated cone and a rightward nut. The cylinder fixing flange is provided with an internal thread, a positioning pin and a clamping groove; the driving part is provided with a nut, piston rod external threads, cylinder body external threads and a cylinder body. The valve element component is installed in a cavity of the valve body component, and the cavity of the valve body component is connected with an air cylinder body of the driving component through a right flange, a connecting clamp and an air cylinder fixing flange. According to the device, the probability that the valve element is stuck can be reduced, the friction resistance of movement of the valve element is reduced, the abrasion strength of the sealing ring is reduced, the service life of the sealing ring is prolonged, and the valve element is convenient to disassemble, wash and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of direct-drive valve body devices for baking, food, chemical and the field needing piston type filling, specifically, a kind of direct-drive valve body device for piston type filling. BACKGROUND

[0002] The valve core of the valve body of piston type filling machine at present stage generally uses rotary valve, due to considering to wash easily and reducing cost, generally without centering device at both ends of valve core shaft, can cause the following malpractices:

[0003] 1) valve core shaft centering is not good plus high frequency of operation, can cause rotary valve to be easily jammed in rotation process.

[0004] 2) valve core both ends sealing ring and cavity do rotary motion can cause sealing ring friction force to increase, sealing ring radial stress torsion can cause valve core to be jammed, sealing ring service life shortening hidden danger. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of direct-drive valve body devices for baking, food, chemical and the industry needing piston type filling, aiming at the above defects, by the linear motion of valve core in valve body cavity, the malpractices of prior art can be effectively avoided.

[0006] In order to achieve the above purpose, the utility model provides a kind of direct-drive valve body device for piston type filling, cooperate piston type filling machine uses, wherein, the device includes valve body component, connecting clamp, valve core component, cylinder fixed flange, driving component;The valve body component is equipped with valve seat, cavity, rear flange, upper flange, front flange, right flange, positioning card;The valve core component is equipped with left sealing ring groove, right sealing ring groove, upper and lower U-shaped straight hole, front and rear straight hole, buckle slot, buckle, positioning round table, right direction thread mother;The cylinder fixed flange is equipped with internal thread, positioning pin, card slot;The driving component is equipped with nut, piston rod outer thread, cylinder body outer thread, cylinder body;The valve core component is installed in the cavity of valve body component, the cavity of valve body component is connected with the cylinder body of driving component by right flange, connecting clamp and cylinder fixed flange, and constitutes integral direct-drive valve body device;The axial line of cavity, the axial line of valve core component and the axial line of cylinder body are on the same straight line.

[0007] The direct drive valve body device for piston filling, wherein the valve body part is a cylindrical cylinder, and is provided with a circular hole penetrating through the left and right end faces in the axial direction, forming a cavity; an opening is arranged at the left end of the cavity, a right flange is arranged at the right end of the cavity, an upper flange is arranged at the top of the middle segment of the cavity, a front flange and a rear flange are respectively arranged at the front and rear sides of the middle segment of the cavity; the right flange and the cavity are coaxial, the front flange and the rear flange are coaxial, and the two axis lines and the axis line of the upper flange intersect and are perpendicular to each other.

[0008] The direct drive valve body device for piston filling, wherein the valve body part is a cylindrical cylinder, and is provided with a circular hole penetrating through the left and right end faces in the axial direction, forming a cavity; an opening is arranged at the left end of the cavity, a right flange is arranged at the right end of the cavity, an upper flange is arranged at the top of the middle segment of the cavity, a front flange and a rear flange are respectively arranged at the front and rear sides of the middle segment of the cavity; the right flange and the cavity are coaxial, the front flange and the rear flange are coaxial, and the two axis lines and the axis line of the upper flange intersect and are perpendicular to each other.

[0009] The direct drive valve body device for piston filling, wherein the valve body part is a cylindrical cylinder, and is provided with a circular hole penetrating through the left and right end faces in the axial direction, forming a cavity; an opening is arranged at the left end of the cavity, a right flange is arranged at the right end of the cavity, an upper flange is arranged at the top of the middle segment of the cavity, a front flange and a rear flange are respectively arranged at the front and rear sides of the middle segment of the cavity; the right flange and the cavity are coaxial, the front flange and the rear flange are coaxial, and the two axis lines and the axis line of the upper flange intersect and are perpendicular to each other.

[0010] The direct drive valve body device for piston filling, wherein the valve body part is a cylindrical cylinder, and is provided with a circular hole penetrating through the left and right end faces in the axial direction, forming a cavity; an opening is arranged at the left end of the cavity, a right flange is arranged at the right end of the cavity, an upper flange is arranged at the top of the middle segment of the cavity, a front flange and a rear flange are respectively arranged at the front and rear sides of the middle segment of the cavity; the right flange and the cavity are coaxial, the front flange and the rear flange are coaxial, and the two axis lines and the axis line of the upper flange intersect and are perpendicular to each other.

[0011] The direct drive valve body device for piston filling, wherein the valve body part is a cylindrical cylinder, and is provided with a circular hole penetrating through the left and right end faces in the axial direction, forming a cavity; an opening is arranged at the left end of the cavity, a right flange is arranged at the right end of the cavity, an upper flange is arranged at the top of the middle segment of the cavity, a front flange and a rear flange are respectively arranged at the front and rear sides of the middle segment of the cavity; the right flange and the cavity are coaxial, the front flange and the rear flange are coaxial, and the two axis lines and the axis line of the upper flange intersect and are perpendicular to each other.

[0012] The direct drive valve body device for piston filling, wherein the valve body part is a cylindrical cylinder, and is provided with a circular hole penetrating through the left and right end faces in the axial direction, forming a cavity; an opening is arranged at the left end of the cavity, a right flange is arranged at the right end of the cavity, an upper flange is arranged at the top of the middle segment of the cavity, a front flange and a rear flange are respectively arranged at the front and rear sides of the middle segment of the cavity; the right flange and the cavity are coaxial, the front flange and the rear flange are coaxial, and the two axis lines and the axis line of the upper flange intersect and are perpendicular to each other.

[0013] The above-mentioned direct-drive valve body device for piston filling, wherein the driving component is provided with a cylinder piston rod on the left side of the cylinder body, a cylinder outer thread is provided at a position between the end of the left side of the cylinder body and the cylinder piston rod, and a piston rod outer thread is provided on the left part of the cylinder piston rod. After the cylinder piston rod is pulled out, the cylinder body is connected to the internal thread of the cylinder fixing flange through the cylinder outer thread, the cylinder piston rod passes through the cylinder fixing flange, and a matching nut is installed on the piston rod outer thread exposed on the left side; part of the piston rod outer thread is also exposed at the end of the cylinder piston rod on the left side of the nut.

[0014] The above-mentioned direct-drive valve body device for piston-type filling, wherein the driving component, the external thread of the piston rod exposed at the left end of the cylinder piston rod, cooperates with the right-hand nut of the clip, the locating pin of the cylinder fixing flange is aligned with the clip groove of the valve core component, the clip is inserted into the clip groove, the positioning cone of the clip cooperates with the centering circle groove on the right side of the valve core component, and the positioning pin is pushed into the clip groove.

[0015] The above-mentioned direct-drive valve body device for piston filling, wherein the valve core component is inserted into the cavity of the valve body component from right to left; the positioning card provided on the top of the right flange of the valve body component cooperates with the slot on the cylinder fixed flange and is snapped into the slot; the connecting clamp connects the right flange and the cylinder fixed flange and locks them.

[0016] The direct-drive valve body device for piston filling provided by the utility model has the following advantages:

[0017] The valve body device is improved from a rotary valve spool to a direct-drive valve spool, and the valve spool changes from radial rotation to axial linear motion. The effects achieved through the improvement include: 1) avoiding the complex valve body structure of the traditional rotary valve and the poor centering of the valve spool axis, which causes the rotary valve to be easily stuck; 2) also avoiding radial extrusion and damage to the sealing ring caused by the radial movement of the valve spool sealing ring; 3) after the valve spool is improved from a radially rotating rotary valve to a direct-drive valve, it is equivalent to the valve spool moving left and right with the cavity as a guide rail, so that the friction resistance is reduced and the movement is gentler. At the same time, the sealing ring is not radially squeezed, and the sealing ring groove on the valve spool protects the sealing ring axially, thereby greatly increasing its service life. In addition, the drive shaft and the valve spool are connected by a snap buckle, and the snap buckle and the slot can float slightly, thereby reducing the chance of the valve spool getting stuck.

[0018] In summary, the device has the advantages of simple structure, easy disassembly and cleaning, easy installation, small friction of valve core movement, low noise and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall schematic diagram of the direct-drive valve body device for piston filling of the present utility model.

[0020] Figure 2The utility model discloses a valve body part schematic drawing for piston type filling's direct drive type valve body device.

[0021] Figure 3 The utility model discloses a valve core part schematic drawing for piston type filling's direct drive type valve body device.

[0022] Figure 4 The utility model discloses a cylinder fixing flange schematic drawing for piston type filling's direct drive type valve body device.

[0023] Figure 5 The utility model discloses a driving part schematic drawing for piston type filling's direct drive type valve body device.

[0024] Figure 6 The utility model discloses an assembly relationship schematic drawing for piston type filling's direct drive type valve body device.

[0025] 1, valve body part;11, valve seat;111, positioning groove;112, positioning pin hole;12, cavity;131, rear flange;132, upper flange;133, front flange;14, right flange;15, positioning card;2, connecting clamp;3, valve core part;31, left sealing ring groove;32, right sealing ring groove;33, upper and lower U type straight through hole;34, front and rear straight through hole;35, buckle groove;36, positioning circular platform;37, buckle;38, right female thread;4, cylinder fixing flange;41, internal thread;42, positioning pin;43, clamping groove;5, driving part;51, nut;52, piston rod external thread;53, cylinder body external thread;54, cylinder body. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further explained below in combination with the drawings.

[0027] The utility model provides a direct drive type valve body device for piston type filling is used in cooperation piston type filling machine, and this device contains valve body part 1, connecting clamp 2, valve core part 3, cylinder fixing flange 4, driving part 5. Figure 1 As shown.

[0028] Valve body part 1 is equipped with valve seat 11, cavity 12, rear flange 131, upper flange 132, front flange 133, right flange 14, positioning card 15. Figure 2 As shown.

[0029] Valve core part 3 is equipped with left sealing ring groove 31, right sealing ring groove 32, upper and lower U type straight through hole 33, front and rear straight through hole 34, buckle groove 35, buckle 37, positioning circular platform 36, right female thread 38. Figure 3 As shown.

[0030] The cylinder fixing flange 4 is provided with an inner thread 41, a positioning pin 42, and a clamping groove 43. Referring to Figure 4 as shown.

[0031] The driving component 5 is provided with a nut 51, a piston rod outer thread 52, a cylinder body outer thread 53, and a cylinder body 54. Referring to Figure 5 as shown.

[0032] The valve core component 3 is installed in the cavity 12 of the valve body component 1, and the cavity 12 of the valve body component 1 is connected with the cylinder body 54 of the driving component 5 through the right flange 14, the connecting clamp 2, and the cylinder fixing flange 4 to form an integrated direct-drive valve body device; the axial lines of the cavity 12, the valve core component 3, and the cylinder body 54 are on the same straight line. Referring to Figure 6 as shown.

[0033] Preferably, the main body of the valve body component 1 is a cylindrical cylinder, provided with a circular hole penetrating through the left and right end faces in the axial direction to form the cavity 12; an opening is arranged at the left end of the cavity 12, a right flange 14 is arranged at the right end of the cavity 12, an upper flange 132 is arranged at the top of the middle segment of the cavity 12, and a front flange 133 and a rear flange 131 are respectively arranged at the front and rear sides of the middle segment of the cavity 12; the right flange 14 and the cavity 12 are coaxial, the front flange 133 and the rear flange 131 are coaxial, and the two axial lines intersect with the axial line of the upper flange 132 and are perpendicular to each other.

[0034] The right flange 14 of the valve body component 1 is connected with the cylinder fixing flange 4 through the clamp, and a positioning clamp 15 is arranged at the top of the right flange 14; the rear flange 131 is connected with a piston pump of a piston filler, and the front flange 133 is connected with a discharge nozzle of material filling; the valve body component 1 penetrates in the front, rear, left, right, and upper five directions.

[0035] The valve body component 1 is provided with the same valve seat 11 on the left and right sides below the cavity 12, the front side of each valve seat 11 is perpendicular to the bottom surface, and is tangent to the cylindrical cylinder formed by the outer side wall of the cavity 12, the bottom of the valve seat 11 extends to the rear of the cavity 12 to form a foot, and a positioning groove 111 is arranged at the rear end of the foot; a positioning pin hole 112 is arranged at the front part between the front side of the valve seat 11 and the bottom surface; the valve body component 1 is positioned with the positioning component of the cooperating piston filler through the left and right positioning grooves 111 and the positioning pin holes 112.

[0036] The cylinder fixing flange 4 is a stepped circular truncated cone with two layers, the outer layer truncated cone is protruded in the middle of the inner layer truncated cone, and the diameter of the inner layer truncated cone is smaller than that of the outer layer; the inner thread 41 is arranged at the axial center of the inner layer, the positioning pin 42 is arranged on the circular ring part of the left end surface of the inner layer of the inner thread 41 and protrudes to the left side, and the clamping groove 43 with an opening is arranged at the edge of the protrusion of the outer layer truncated cone.

[0037] The main body of the valve core component 3 is a cylinder, which moves left and right in the cavity 12; the left and right sides of the cylindrical side wall are respectively provided with a left sealing ring groove 31 and a right sealing ring groove 32, which are respectively sleeved with sealing rings; the left sealing ring groove 31 is close to the left end face of the cylindrical main body, and an up-down U-shaped through hole 33 is arranged on the cylindrical side wall to the right of the left sealing ring groove 31, and a front-back through hole 34 is arranged on the cylindrical side wall between the right sealing ring groove 32 and the up-down U-shaped through hole 33.

[0038] The valve core component 3 is provided with a buckle groove 35 between the right sealing ring groove 32 and the right end face of the cylindrical main body; the buckle 37 separated from the cylindrical main body is provided with a positioning circular table 36 on the left side, and the right side of the buckle 37 is provided with a right-handed female thread 38 at the axis; a centering circular groove matched with the positioning circular table 36 is arranged at the center of the right end face of the cylindrical main body.

[0039] The driving component 5 is provided with a cylinder piston rod at the left side of the cylinder body 54, and a cylinder body external thread 53 is arranged between the left end of the cylinder body 54 and the cylinder piston rod; a piston rod external thread 52 is arranged on the left part of the cylinder piston rod, and after the cylinder piston rod is pulled out, the cylinder body 54 is connected with the internal thread 41 of the cylinder fixing flange 4 through the cylinder body external thread 53, the cylinder piston rod passes through the cylinder fixing flange 4, and the piston rod external thread 52 exposed on the left side is matched with the nut 51; part of the piston rod external thread 52 exposed on the left end of the cylinder piston rod is also exposed on the left side of the nut 51.

[0040] The piston rod external thread 52 exposed on the left end of the cylinder piston rod of the driving component 5 is matched with the right-handed female thread 38 of the buckle 37, the positioning pin 42 of the cylinder fixing flange 4 is aligned with the buckle groove 35 of the valve core component 3, the buckle 37 is inserted into the buckle groove 35, the positioning circular table 36 of the buckle 37 is matched with the centering circular groove on the right side of the valve core component 3, and the positioning pin 42 is pushed into the buckle groove 35.

[0041] The valve core component 3 is inserted into the cavity 12 of the valve body component 1 from right to left; the positioning buckle 15 arranged on the top of the right flange 14 of the valve body component 1 is matched with the buckle groove 43 on the cylinder fixing flange 4, and is buckled into the buckle groove 43; the connecting buckle 2 connects and tightly fixes the right flange 14 and the cylinder fixing flange 4.

[0042] The rear flange 131 of the cavity 12 is connected with the piston pump, and the front flange 133 is connected with the discharge nozzle; when the piston pump discharges, the valve core moves left, at this time, the rear direction of the upper and lower U-shaped through hole 33 of the valve core is closed by the inner wall of the cavity, meanwhile, the front and rear through hole 34 of the valve core is communicated by the rear flange 131 and the front flange 133 of the cavity 12, and the upper flange 132 is closed, and the material is discharged through the discharge nozzle; when the piston pump sucks, the piston moves right, at this time, the front and rear through hole 34 of the valve core is closed, and the upper and lower U-shaped through hole 33 is opened, and the material is sucked into the piston pump through the upper flange 132 of the cavity, the upper and lower U-shaped through hole 33 of the valve core and the rear flange 131, thereby completing the suction work.

[0043] The direct drive type valve body device for piston filling provided by the utility model will be further described in combination with the embodiments.

[0044] Embodiment 1

[0045] A direct drive type valve body device for piston filling, which is composed of a valve body part 1, a connecting clamp 2, a valve core part 3, a cylinder fixing flange 4 and a driving part 5.

[0046] The valve body part 1 is composed of a valve seat 11, a cavity 12, a rear flange 131, an upper flange 132, a front flange 133, a right flange 14 and a positioning clamp 15. The valve seat 11 is composed of two positioning grooves 111 at the rear and two positioning pin holes 112 at the front.

[0047] The valve core part 3 is installed in the cavity 12 and is composed of a left sealing ring groove 31, a right sealing ring groove 32, an upper and lower U-shaped through hole 33, a front and rear through hole 34, a buckle groove 35, a positioning circular table 36, a buckle 37 and a right direction thread 38. The right side of the valve core is provided with a semi-concave circular centering groove matched with the positioning circular table 36.

[0048] The cylinder fixing flange 4 is composed of an inner thread 41, a positioning pin 42 and a clamping groove 43.

[0049] The driving part 5 is composed of a nut 51, a piston rod outer thread 52, a cylinder body outer thread 53 and a cylinder body 54.

[0050] Embodiment 2

[0051] A direct drive type valve body device for piston filling, which is composed of a valve body part 1, a connecting clamp 2, a valve core part 3, a cylinder fixing flange 4 and a driving part 5. The detailed structure and assembly relationship are as follows:

[0052] The valve body part 1 is composed of a valve seat 11, a cavity 12, a rear flange 131, an upper flange 132, a front flange 133, a right flange 14 and a positioning clamp 15. The valve body is through in five directions, i.e. front, rear, left, right and upper.

[0053] Valve body is through the left and right two positioning slot 111, left and right two positioning pin hole 112, with the positioning device of the matched piston filling machine line positioning. The cavity 12 is a left and right through the round hole, the right flange 14 is used for connecting with the cylinder fixed flange 4 through the clamp 2.

[0054] Valve core component 3 in the cavity 12 left and right movement; by left sealing ring groove 31, right sealing ring groove 32, upper and lower U type straight hole 33, front and rear straight hole 34, buckle slot 35, buckle 37, positioning round table 36, right to the female thread 38. The valve core right side center position is processed with the centering circular groove.

[0055] Cylinder fixed flange 4 is composed of internal thread 41, positioning pin 42, clamping groove 43.

[0056] Driving component 5 is composed of nut 51, piston rod external thread 52, cylinder body external thread 53, cylinder body 54.

[0057] The assembly process of each component includes:

[0058] 1) draw out the cylinder piston rod, fasten and connect the cylinder body external thread 53 of the cylinder body 54 through the internal thread 41 of the cylinder fixed flange 4.

[0059] 2) screw the nut 51 on the piston rod external thread 52, leave enough appropriate thread segment on the left side matched with the right female thread 38 of the buckle 37.

[0060] 3) after adjusting the piston rod external thread 52 into the right female thread 38 of the buckle 37 to the right, tighten the nut 51 to the left.

[0061] 4) align the positioning pin 42 with the buckle slot 35, insert the buckle 37 of the above assembled assembly into the buckle slot 35 from top to bottom, so that the positioning round table 36 of the buckle 37 is matched with the centering circular groove on the right side of the valve core.

[0062] 5) push the positioning pin 42 from right to left into the buckle slot 35, at this time, the cylinder piston rod is withdrawn from left to right.

[0063] 6) slowly insert the valve core 3 of the above assembled assembly from right to left into the cavity 12 of the valve body 1, so that the positioning buckle 15 is buckled into the clamping groove 43.

[0064] 7) connect the right flange 14 and the cylinder fixed flange 4 by connecting the clamp 2 and lock it tightly, which completes the assembly of the whole valve body.

[0065] Example 3

[0066] A kind of direct drive valve body device for piston filling, the working principle of the valve body is as follows:

[0067] The rear flange 131 of the valve body component 1 on the cavity 12 connects the piston pump, and the front flange 133 connects the discharge nozzle; when the piston pump sucks material, the valve core moves from left to right, at this time, the upper part of the upper and lower U-shaped straight-through hole 33 of the valve core is in communication with the upper flange 132 of the cavity, the upper flange 132 of the cavity is in communication with the material bucket, and the lower part is closed by the inner wall of the cavity 12. The front part of the upper and lower U-shaped straight-through hole 33 of the valve core is closed with the cavity 12, and the rear part is in communication with the rear flange 131 of the cavity 12, and the rear flange 131 of the cavity 12 is in communication with the piston pump, so as to complete the material suction from the upper flange 132 of the cavity 12 to the piston pump through the rear flange 131.

[0068] When the piston pump discharges material, the valve core moves from right to left, at this time, the front and rear straight-through holes 34 of the valve core are in communication with the rear flange 131 of the cavity 12, respectively, and the material is discharged from the piston pump to the discharge nozzle connected with the front flange 133 through the rear flange 131 of the cavity 12, the front and rear straight-through holes 34 of the valve core and the front flange 133.

[0069] The direct drive type valve body device for the piston type filling provided by the utility model is composed of a valve body component, a connecting clamp, a valve core component, a cylinder fixing flange and a driving component. The core innovation of the device is: 1) the valve core rotation driving of the valve body is changed into a linear direct drive structure; 2) the valve core is floatingly connected with the driving rod through buckling; 3) the probability of valve core jamming is greatly reduced; 4) the service life of the valve core sealing ring is greatly increased; 5) the piston type filling machine matched with the device has positioning guide plates on the left and right sides, the rear parts of the left and right guide plates are inwardly provided with left and right positioning bosses, the front parts of the left and right guide plates are respectively provided with a silk hole and a pin hole, the valve seat is inserted into the guide plates, the left and right clamping grooves at the rear parts of the guide plates are matched with the left and right positioning bosses of the machine, and after being pressed tightly, a silk pin is inserted from the side of the pin hole and is screwed tightly, so that the fixing is completed. The fixing mode has the advantages of simple structure, good positioning, convenience in cleaning and dismounting.

[0070] The device of the utility model avoids the disadvantages of the prior art by the linear motion of the valve core in the valve body cavity, and has the following obvious advantages: 1) the probability of valve core jamming is reduced; 2) the frictional resistance of the valve core motion is reduced; 3) the intensity of sealing ring abrasion is reduced; 4) the service life of the sealing ring is increased; and 5) the dismounting, cleaning and assembling of the valve core are facilitated.

[0071] Although the content of the utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation on the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be defined by the appended claims.

Claims

1. A direct drive valve body device for piston filling, for use with a piston filler, characterized in that, The device comprises a valve body component, a connecting clamp, a valve core component, a cylinder fixing flange, and a driving component. The valve body component is provided with a valve seat, a cavity, a rear flange, an upper flange, a front flange, a right flange, and a positioning clamp. The valve core component is provided with a left sealing ring groove, a right sealing ring groove, an upper and lower U-shaped straight-through hole, a front and rear straight-through hole, a buckle groove, a buckle, a positioning circular table, and a right direction thread. The cylinder fixing flange is provided with an internal thread, a positioning pin, and a clamping groove. The driving component is provided with a nut, a piston rod external thread, a cylinder body external thread, and a cylinder body. The valve core component is installed in the cavity of the valve body component, and the cavity of the valve body component is connected with the cylinder body of the driving component through the right flange, the connecting clamp, and the cylinder fixing flange to form an integrated direct drive type valve body device.

2. A direct drive valve body device for piston filling according to claim 1, characterized in that The axial center lines of the cavity, the valve core component, and the cylinder body are on the same straight line.

3. A direct drive valve body device for piston filling as claimed in claim 2, characterized in that The valve body component is a cylindrical barrel, provided with a circular hole penetrating through the left and right end faces in the axial direction to form a cavity.

4. A direct drive valve body device for piston filling as claimed in claim 3, characterized in that The right flange is connected with the cylinder fixing flange through the clamp, and the positioning clamp is arranged on the top of the right flange.

5. The direct drive valve body device for piston fill, according to claim 1, wherein, The rear flange is connected with the piston pump of the piston filling machine, and the front flange is connected with the discharge nozzle.

6. The direct drive valve body device for piston fill of claim 1, wherein, The valve body component is penetrated in the front, rear, left, right, and upper directions.

7. A direct drive valve body device for piston filling as claimed in claim 6, characterized in that Each valve seat is perpendicular to the bottom surface and tangent to the cylindrical barrel formed by the outer side wall of the cavity. The cylinder fixing flange is divided into two circular table shapes, provided with a through internal thread at the axial center of the inner layer, a positioning pin protruding to the left on the left side of the inner layer, a raised closed circular table chuck flange on the middle part of the outer surface of the inner layer, and an open clamping groove on the outer edge of the chuck flange. The valve core component is a cylindrical body, moving left and right in the cavity. The left and right sides of the cylindrical body are respectively provided with a left sealing ring groove and a right sealing ring groove. The valve core component is provided with a buckle groove between the right sealing ring groove and the right end face of the cylindrical body. The cylindrical body is provided with a centering circular groove at the center of the right end face.

8. The direct drive valve body device for piston fill of claim 1, wherein, The driving part is provided with a cylinder piston rod at the left side of the cylinder body, a cylinder outer thread is arranged between the left end of the cylinder body and the cylinder piston rod, a piston rod outer thread is arranged at the left part of the cylinder piston rod, the cylinder body is connected with the inner thread of the cylinder fixing flange through the cylinder outer thread after the cylinder piston rod is pulled out, the cylinder piston rod passes through the cylinder fixing flange, and the matched nut is arranged on the piston rod outer thread exposed at the left side of the cylinder piston rod.

9. A direct drive valve body device for piston filling as claimed in claim 8, characterized in that The driving part is provided with a cylinder piston rod at the left side of the cylinder body, a cylinder outer thread is arranged between the left end of the cylinder body and the cylinder piston rod, a piston rod outer thread is arranged at the left part of the cylinder piston rod, the cylinder body is connected with the inner thread of the cylinder fixing flange through the cylinder outer thread after the cylinder piston rod is pulled out, the cylinder piston rod passes through the cylinder fixing flange, and the matched nut is arranged on the piston rod outer thread exposed at the left side of the cylinder piston rod.

10. A direct drive valve body device for piston filling as claimed in claim 9, characterized in that The driving part is provided with a cylinder piston rod at the left side of the cylinder body, a cylinder outer thread is arranged between the left end of the cylinder body and the cylinder piston rod, a piston rod outer thread is arranged at the left part of the cylinder piston rod, the cylinder body is connected with the inner thread of the cylinder fixing flange through the cylinder outer thread after the cylinder piston rod is pulled out, the cylinder piston rod passes through the cylinder fixing flange, and the matched nut is arranged on the piston rod outer thread exposed at the left side of the cylinder piston rod.

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