Ultrahigh pressure plunger assembly for homogeneous pump

Abstract

The utility model relates to the technical field of plunger assemblies, and discloses an ultrahigh pressure plunger assembly for a homogeneous pump, which comprises a crank rod and a plunger rod, the crank rod and the plunger rod are connected through a connecting assembly, the connecting assembly comprises mutually spliced connecting semi-rings, and mounting cavities are arranged in the connecting semi-rings along the circumferential direction of the connecting semi-rings. A sliding groove is formed in the peripheral side wall of the connecting half ring, a connecting block is arranged in the mounting cavity, and a positioning column is arranged on the connecting block; a locking piece is arranged at one end part of the connecting semi-ring and is used for locking the positioning column; spliced mounting parts are arranged on the two side faces of the connecting semi-ring, annular grooves are formed in the outer side walls of the crank rod and the plunger rod in the circumferential direction, and annular blocks are arranged on the spliced mounting parts. Through the arrangement of the connecting assembly, the opposite mounting parts are spliced to form the connecting cylinder, the opposite annular blocks are spliced to form the annular clamping ring, the clamping ring is clamped into the annular grooves in the corresponding crank rod and the plunger rod, and mutual connection between the crank rod and the plunger rod is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger components, in particular to an ultra-high pressure plunger component for a homogenizing pump. Background Art

[0002] High-pressure nano-homogenizers are mainly used in the biological, pharmaceutical, food, chemical and other industries for cell crushing, beverage homogenization and fine chemicals. Generally, high-pressure nano-homogenizers are equipped with homogenizing pumps, which mainly rely on the reciprocating motion of the plunger assembly in the homogenizing pump to pressurize the homogenizer.

[0003] For example, a multi-stroke plunger pump structure of a homogenizer disclosed in the patent with announcement number CN218151276U, although the multi-stroke plunger pump structure of the homogenizer can form multiple plunger pump systems through the arrangement of multiple feed pipes, piston pipes, discharge pipes and piston rods, effectively increasing the flow rate of the plunger pump, thereby increasing the homogenizing efficiency of the homogenizer; however, when the multi-stroke plunger pump structure of the homogenizer is actually used, an upper connecting plate and a lower connecting plate are provided at the end of the crank rod facing away from the eccentric disk, and the upper connecting plate and the lower connecting plate are connected by bolts, and a through hole is provided therein for the end of the crank rod and the end of the piston rod to be embedded, so that the end of the crank rod and the end of the piston rod can be clamped and fixed. Therefore, in the process of replacing the piston rod, the bolts need to be tightened multiple times, which makes the process of replacing the piston rod more cumbersome, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an ultra-high pressure plunger assembly for a homogenizing pump to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A super-high-pressure plunger assembly for a homogenizing pump comprises a crank rod and a plunger rod, wherein the crank rod and the plunger rod are connected via a connecting assembly, wherein the connecting assembly comprises connecting semi-rings spliced ​​with each other, wherein an installation cavity is provided in the connecting semi-ring along its circumference, wherein the outer peripheral side wall of the connecting semi-ring is provided with a sliding groove connected to the installation cavity along its circumference, wherein a connecting block is provided slidingly in the installation cavity, wherein the connecting block is provided with a positioning column extending out of the corresponding sliding groove; a locking piece is provided at one end of the connecting semi-ring, and when the positioning column moves to the locking piece on the adjacent connecting semi-ring, the locking piece is used to lock the positioning column; spliced ​​installation parts are provided on both side surfaces of the connecting semi-ring, annular grooves are provided on the outer side walls of the crank rod and the plunger rod along their circumferences, and annular blocks that are inserted into the corresponding annular grooves are provided on the spliced ​​installation parts.

[0007] Furthermore, the side walls opposite to the connecting half ring are provided with limiting grooves communicating with the mounting cavity along their circumferential direction, and the connecting block is provided with limiting columns with both ends extending into the corresponding limiting grooves for sliding.

[0008] Furthermore, a limiting hole is provided on the end surface of the positioning column extending out of the sliding groove, and a mounting plate is provided at one end of the connecting half ring. The locking member includes a locking block arranged on the side wall of the mounting plate, a locking cavity with an open end is provided in the locking block, a locking column is provided in the locking cavity, the locking column is provided with a locking rod extending out of the locking cavity, a spring is sleeved on the locking rod, the spring is used to push the locking column into the limiting hole, and a rotating member for driving the locking column to retract is provided on the end of the locking rod extending out of the locking cavity.

[0009] Furthermore, the rotating part includes a rotating block, which is provided with an installation groove, and the protruding end of the locking rod extends into the installation groove. The protruding end of the locking rod is hingedly connected to the installation groove through a hinge rod, so as to realize the rotation of the rotating block connected to the protruding end of the locking rod.

[0010] Furthermore, one end of the rotating block forms an abutting portion, and the other end forms a shifting portion.

[0011] Furthermore, a movable moving block is provided in the installation cavity, and the moving block is fixedly connected to the corresponding connecting block. When the connecting half rings are spliced ​​with each other, the moving block slides into the installation cavity of the adjacent connecting half rings to drive the two positioning columns to move synchronously to the corresponding locking parts.

[0012] Furthermore, the mounting portion and the connecting half ring are connected by welding.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model, through the setting of the connecting assembly, when the connecting half rings are spliced ​​together, the relative mounting parts are spliced ​​together to form a connecting tube that is embraced outside the crank rod or the plunger rod, and the relative annular blocks are spliced ​​together to form an annular clamping ring, which is clamped into the annular grooves on the corresponding crank rod and the plunger rod, so that the connecting tube can be fixedly connected with the crank rod and the plunger rod, that is, the crank rod and the plunger rod are connected to each other.

[0015] 2. The utility model provides a locking member so that when the connecting half rings are spliced ​​together and the side wall of the positioning column fits with the side wall of the adjacent mounting plate, the limiting hole on the positioning column is aligned with the opening of the locking cavity, and the locking column can be pushed into the limiting hole by a spring, thereby enabling the locking column to lock the adjacent positioning column, so that the locking member can lock and fix the adjacent connecting half rings, so that the crank rod and the plunger rod can be fixedly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the structure of an ultra-high pressure plunger assembly for a homogenizing pump.

[0017] Figure 2This is a schematic structural view of the installation part and the annular groove in the present utility model.

[0018] Figure 3 This is a schematic structural view of the connecting half-ring in the present utility model.

[0019] Figure 4 This is a schematic structural view of the installation cavity in the present utility model.

[0020] Figure 5 This is a schematic structural view of the cross-section of the locking member in the present utility model.

[0021] Figure 6 This is a schematic cross-sectional view of the connection between the crank rod and the plunger rod between the homogenizing pump and the homogenizer in the present utility model.

[0022] The meanings of the reference numerals in the figure are as follows: 100, crank rod; 110, installation part; 120, mounting plate; 130, locking block; 140, plunger rod; 150, positioning column;

[0023] 200, annular groove; 210, sliding groove; 220, limiting hole; 230, annular block; 240, connecting half-ring; 250, limiting column; 260, limiting groove; 270, rotating block;

[0024] 300, moving block; 320, installation cavity;

[0025] 400, locking rod; 410, locking cavity; 420, spring; 430, locking column;

[0026] 500, base. Detailed implementation manners

[0027] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present utility model and not for limiting it.

[0028] The following is combined with the attached Figures 1-6 A further detailed description of this embodiment will be given below.

[0029] Combined with Figures 1-6As shown in the figure, a kind of ultra-high pressure plunger assembly for a homogenizing pump in this embodiment includes a crank rod 100 and a plunger rod 140, and the crank rod 100 and the plunger rod 140 are connected by a connecting assembly; the connecting assembly includes connecting half-rings 240 spliced with each other. An installation cavity 320 is arranged along the circumferential direction inside the connecting half-ring 240. A sliding groove 210 communicating with the installation cavity 320 is arranged along the circumferential direction on the outer peripheral side wall of the connecting half-ring 240. A connecting block is slidably arranged in the installation cavity 320, and a positioning column 150 extending out of the corresponding sliding groove 210 is arranged on the connecting block; a locking member is arranged at one end of the connecting half-ring 240. When the positioning column 150 moves to the locking member on the adjacent connecting half-ring 240, the locking member is used to lock the positioning column 150; mounting parts 110 spliced with each other are arranged on both side surfaces of the connecting half-ring 240. Annular grooves 200 are arranged along the circumferential direction on the outer side walls of the crank rod 100 and the plunger rod 140. Annular blocks 230 that are snapped into the corresponding annular grooves 200 are arranged on the spliced mounting parts 110.

[0030] In actual use of this embodiment, as Figure 6 shown, one end of the crank rod 100 is connected to a homogenizing pump installed on a base 500, and one end of the plunger rod 140 is connected to a homogenizer. Both the homogenizing pump and the homogenizer adopt the structure disclosed in the publication number CN218151276U. The other ends of the crank rod 100 and the plunger rod 140 are connected by a connecting assembly, so that the homogenizing pump can drive the plunger rod 140 to reciprocate through the crank rod 100, and further can increase the pressure in the homogenizer, thereby being able to homogenize the substances in the homogenizer.

[0031] In actual use, the annular block 230 is connected to the corresponding mounting part 110 by welding, and the mounting part 110 is connected to both side walls of the connecting half-ring 240 by welding. When the connecting half-rings 240 are spliced with each other, the opposite mounting parts 110 are spliced to form a connecting cylinder that hugs the outside of the crank rod 100 or the plunger rod 140. At this time, the opposite annular blocks 230 are also spliced to form a circular snap ring, and the snap ring is snapped into the annular grooves 200 on the corresponding crank rod 100 and plunger rod 140, which can fixedly connect the connecting cylinder to the crank rod 100 and the plunger rod 140, that is, realize the mutual connection between the crank rod 100 and the plunger rod 140;

[0032] When the two connecting half rings 240 are spliced ​​together, the positioning posts 150 on the two connecting half rings 240 are slid along the corresponding sliding grooves 210, so that when the two positioning posts 150 slide to the locking pieces on the adjacent connecting half rings 240, the locking pieces can lock the positioning posts 150, thereby fixing the two mutually spliced ​​connecting half rings 240 to each other, so that the connecting assembly can connect the crank rod 100 and the plunger rod 140. Compared with the prior art, the setting of the connecting assembly and the locking piece makes it unnecessary for the operator to tighten the bolts multiple times during the replacement of the plunger rod 140, so that the operation is relatively simple and convenient for practical use.

[0033] The locking piece is disposed at one end of the connecting half ring 240, and the opening of the sliding groove 210 faces the other end of the connecting half ring 240. When the connecting half rings 240 are spliced, the locking piece is misplaced, so that the positioning column 150 can slide along the sliding groove 210 to the locking piece on the adjacent connecting half ring 240, and the positioning column 150 is locked and fixed by the locking piece, thereby realizing the splicing and fixing of the connecting half rings 240;

[0034] In order to prevent the positioning column 150 from sliding out of the sliding groove 210, the opposite side walls of the connecting half ring 240 are provided with limiting grooves 260 connected to the installation cavity 320 along their circumference, and the connecting block is provided with limiting columns 250 with both ends extending into the corresponding limiting grooves 260 for sliding.

[0035] Combination Figures 2-5 As shown, in this embodiment, a movable moving block 300 is provided in the installation cavity 320, and the moving block 300 is fixedly connected to the corresponding connecting block. When the connecting half rings 240 are spliced ​​with each other, the moving block 300 slides into the installation cavity 320 of the adjacent connecting half rings 240, and is used to drive the two positioning columns 150 to move synchronously to the corresponding locking parts.

[0036] In actual use of this embodiment, the moving block 300 is arranged in a semicircular shape, and the outer side wall of the moving block 300 is slidably fitted with the side wall of the installation cavity 320. When the two connecting half rings 240 are spliced ​​together, the two moving blocks 300 can be spliced ​​together to form a complete circle. At this time, when the operator moves one of the two positioning posts 150 to slide along the corresponding sliding groove 210, the other positioning post 150 can be synchronously slid along the corresponding sliding groove 210, so that the two positioning posts 150 can be synchronously moved to the corresponding locking member, which simplifies the operation steps and is convenient for actual use.

[0037] Meanwhile, the two moving blocks 300 rotate so as to respectively enter the adjacent installation cavities 320, and further make the side walls of the two moving blocks 300 respectively abut against the side walls of the adjacent installation cavities 320, so that the two spliced connecting half-rings 240 are not easily separated from each other axially, that is, the connection effect between the connecting component connecting the crank rod 100 and the plunger rod 140 is strengthened.

[0038] Combined with Figures 2-5 As shown, in this embodiment, a limiting hole 220 is provided on the end face of the positioning column 150 extending out of the sliding groove 210. An installation plate 120 is provided at one end of the connecting half-ring 240. The locking member includes a locking block 130 provided on the side wall of the installation plate 120. A locking cavity 410 with an open end is provided in the locking block 130. A locking column 430 is provided in the locking cavity 410. A locking rod 400 extending out of the locking cavity 410 is provided on the locking column 430. A spring 420 is sleeved on the locking rod 400. The spring 420 is used to push the locking column 430 into the limiting hole 220. A rotating member for driving the locking column 430 to retract is provided at one end of the locking rod 400 extending out of the locking cavity 410.

[0039] When this embodiment is actually used, one end of the spring 420 abuts against one side wall of the locking column 430, and the other end abuts against the side wall of the locking cavity 410. When the positioning column 150 slides along the side wall of the sliding groove 210 so that the side wall of the positioning column 150 fits against the side wall of the adjacent installation plate 120, at this time, the limiting hole 220 on the positioning column 150 is aligned with the opening of the locking cavity 410. The spring 420 can push the locking column 430 into the limiting hole 220, and further make the locking rod 400 lock the adjacent positioning column 150, so that the locking member can lock and fix the adjacent connecting half-rings 240, and the crank rod 100 and the plunger rod 140 can be fixedly connected;

[0040] When it is actually used, the rotating member includes a rotating block 270. An installation groove is provided on the rotating block 270. The extending end of the locking rod 400 extends into the installation groove. The extending end of the locking rod 400 is hingedly connected to the installation groove through a hinge rod. Thus, the rotating block 270 is rotatably connected to the extending end of the locking rod 400;

[0041] The locking post 430 is then released from the locking cavity 410, and the locking post 430 is then released from the locking cavity 410.

[0042] The locking column 430 is adapted to the limiting hole 220, so that the spring 420 pushes the locking column 430 to extend into the limiting hole 220, and the locking column 430 does not shake in the limiting hole 220, so that the locking column 430 can better lock the positioning column 150, so that the locking column 430 locks the adjacent connecting half ring 240 more firmly;

[0043] Through the structure of this embodiment, in actual use, the locking member can be locked and unlocked by turning the toggle portion to drive the rotating block 270 to rotate. The operation is simple and convenient, and it is conducive to replacing the plunger rod 140.

[0044] Working principle: When the crank rod 100 and the plunger rod 140 need to be connected to each other, the relative mounting portions 110 are spliced ​​together to form a connecting tube that is embraced by the crank rod 100 or the plunger rod 140. At this time, the relative annular blocks 230 are also spliced ​​together to form an annular clamping ring, which is clamped into the annular groove 200 on the corresponding crank rod 100 and the plunger rod 140, so that the connecting tube and the crank rod 100 and the plunger rod 140 are fixedly connected, that is, the crank rod 100 and the plunger rod 140 are connected to each other. By connecting the two connecting half rings 240 The positioning column 150 on the upper slides along the corresponding sliding groove 210, so that the side wall of the positioning column 150 fits with the side wall of the adjacent mounting plate 120. At this time, the limiting hole 220 on the positioning column 150 is aligned with the opening of the locking cavity 410, and the spring 420 can push the locking column 430 into the limiting hole 220, so that the locking rod 400 locks the adjacent positioning column 150, so that the locking member can lock and fix the adjacent connecting half ring 240, so that the crank rod 100 and the plunger rod 140 can be fixedly connected.

Claims

1. An ultra-high pressure plunger assembly for a homogenizing pump, comprising a crank rod (100) and a plunger rod (140), characterized in that: The crank rod (100) and the plunger rod (140) are connected via a connecting assembly, the connecting assembly comprising connecting half rings (240) connected to each other, a mounting cavity (320) being provided in the connecting half ring (240) along its circumference, a sliding groove (210) being provided along its circumference on the outer peripheral side wall of the connecting half ring (240) and communicating with the mounting cavity (320), a connecting block being provided in the mounting cavity (320) for sliding movement, and a positioning column (150) being provided on the connecting block and extending out of the corresponding sliding groove (210); 0) is provided with a locking piece at one end thereof, and when the positioning column (150) moves to the locking piece on the adjacent connecting half ring (240), the locking piece is used to lock the positioning column (150); the two side surfaces of the connecting half ring (240) are provided with spliced ​​mounting portions (110), the outer side walls of the crank rod (100) and the plunger rod (140) are provided with annular grooves (200) along their circumferences, and the spliced ​​mounting portions (110) are provided with annular blocks (230) that are inserted into the corresponding annular grooves (200).

2. The ultra-high pressure plunger assembly for a homogenizing pump according to claim 1, characterized in that: The side walls opposite to the connecting half ring (240) are provided with limiting grooves (260) communicating with the mounting cavity (320) along their circumferential direction, and the connecting block is provided with limiting columns (250) with both ends extending into corresponding limiting grooves (260) for sliding.

3. The ultra-high pressure plunger assembly for a homogenizing pump according to claim 2, characterized in that: A limiting hole (220) is provided on the end surface of the positioning column (150) extending out of the sliding groove (210), a mounting plate (120) is provided at one end of the connecting half ring (240), and the locking member comprises a locking block (130) arranged on the side wall of the mounting plate (120), a locking cavity (410) with an opening at one end is provided in the locking block (130), a locking column (430) is provided in the locking cavity (410), the locking column (430) is provided with a locking rod (400) extending out of the locking cavity (410), a spring (420) is sleeved on the locking rod (400), the spring (420) is used to push the locking column (430) to extend into the limiting hole (220), and a rotating member for driving the locking column (430) to retract is provided on the end of the locking rod (400) extending out of the locking cavity (410).

4. The ultra-high pressure plunger assembly for a homogenizing pump according to claim 3, characterized in that: The rotating member comprises a rotating block (270), a mounting groove is formed on the rotating block (270), the protruding end of the locking rod (400) extends into the mounting groove, and the protruding end of the locking rod (400) is hingedly connected to the mounting groove via a hinge rod, so as to realize the rotating block (270) being rotatably connected to the protruding end of the locking rod (400).

5. The ultra-high pressure plunger assembly for a homogenizing pump according to claim 4, characterized in that: One end of the rotating block (270) forms an abutting portion, and the other end forms a shifting portion.

6. The ultra-high pressure plunger assembly for a homogenizing pump according to claim 2, characterized in that: A movable moving block (300) is provided in the installation cavity (320), and the moving block (300) is fixedly connected to the corresponding connecting block. When the connecting half rings (240) are spliced ​​together, the moving block (300) slides into the installation cavity (320) of the adjacent connecting half rings (240) to drive the two positioning columns (150) to move synchronously to the corresponding locking parts.

7. The ultra-high pressure plunger assembly for a homogenizing pump according to claim 1, characterized in that: The mounting portion (110) and the connecting half ring (240) are connected by welding.

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