Sealing and pressing device of ceramic plunger pump

Abstract

The utility model discloses a sealing and pressing device of a ceramic plunger pump, and relates to the technical field of ceramic plunger pumps. The reciprocating pump comprises a pump body, a sealing cover plate is detachably installed on one side of the pump body, a plunger movably penetrates through the middle of the sealing cover plate, one end of the plunger movably penetrates through the interior of the pump body and is provided with a piston, and when a connecting frame is connected with reciprocating equipment, the connecting frame drives the piston to move in the pump body in a reciprocating mode through the plunger. When the piston moves to the position of the insertion ring, the piston makes contact with a rubber sealing sleeve, the piston drives the rubber sealing sleeve to move, the rubber sealing sleeve moves along the surface of the fixing ring base, the rubber sealing sleeve drives a pressing rod to move towards the interior of the fixing ring base, the pressing rod drives a pressing ring to move, and the pressing ring drives a pressing spring to stretch. And under the action of the compression spring, the rubber sealing sleeve can be tightly attached to the piston, and the sealing performance is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic plunger pumps, in particular to a sealing and pressing device of a ceramic plunger pump. Background Art

[0002] Ceramic plunger pumps are commonly used for liquid transportation and pressure increase. They are unique in that they are made of high-performance technical ceramic materials, which have excellent properties such as high hardness, wear resistance, high temperature resistance, and corrosion resistance. Ceramic plunger pumps are an important device used in hydraulic systems. Through the reciprocating motion of the ceramic plunger, a pressure difference is formed between the high-pressure side and the low-pressure side, achieving the suction, compression, and discharge of liquids.

[0003] After searching, a sealing device of a hydraulic ceramic plunger pump with publication number CN212225504U was disclosed. During the use of the existing sealing device of the ceramic plunger pump, although the sealing cover is connected to the pump body by a thread, as the plunger moves repeatedly, it is easy to cause a gap between the sealing cover and the pump body, causing air to enter the interior of the pump body, affecting the use of the pump body.

[0004] To this end, we provide a sealing and pressing device for a ceramic plunger pump to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a sealing and pressing device for a ceramic plunger pump, which can solve the problem that in the use of the sealing device of the existing ceramic plunger pump, although the sealing cover is connected to the pump body by a thread, as the plunger moves repeatedly, it is easy to cause a gap between the sealing cover and the pump body, causing air to enter the interior of the pump body and affecting the use of the pump body.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a sealing and pressing device for a ceramic plunger pump, comprising a pump body, a sealing cover plate detachably mounted on one side of the pump body, a plug rod movably inserted in the middle of the sealing cover plate, one end of the plug rod movably inserted in the interior of the pump body and mounted with a piston, a connecting frame mounted on the other end of the plug rod, a sealing structure arranged between the sealing cover plate and the pump body, and mounting screw holes being provided at both ends of the pump body and the sealing cover.

[0008] The present invention is further configured such that the sealing structure includes an insert ring, which is inserted into the interior of the pump body and fits against the inner wall of the pump body.

[0009] The utility model is further configured such that a fixed ring seat is provided on one side of the insert ring, a movable sleeve outside the fixed ring seat is provided with a rubber sealing sleeve, and an inner wall of the rubber sealing sleeve is in contact with the fixed ring seat.

[0010] The utility model is further configured such that a clamping rod is movably installed inside the fixed ring seat, one end of the clamping rod is movably inserted into the outside of the fixed ring seat and is connected to the rubber sealing sleeve, a clamping spring is sleeved on the surface of the clamping rod, a compression ring is fixedly installed at one end of the clamping rod, and the compression ring is connected to the compression spring.

[0011] The utility model is further configured such that a sealing groove is opened at one end of the pump body, a sealing ring is movably inserted into the sealing groove, one end of the sealing ring is fixedly connected to the sealing gland, and one end of the sealing ring is provided with a rubber sealing bubble.

[0012] The utility model is further configured such that a flushing hole is provided inside the sealing ring, the flushing hole is connected to the rubber sealing bubble, and a connector connected to the flushing hole is provided on one side of the sealing gland.

[0013] The utility model is further configured such that a retaining ring is provided inside the flushing hole, a mounting sleeve is installed inside the flushing hole, a support rod is movably inserted into one end of the mounting sleeve, a sealing block is fixedly installed at one end of the support rod, and the sealing block is clamped with the retaining ring.

[0014] The utility model is further configured such that one end of the support rod is movably inserted into the interior of the mounting sleeve and a moving block is fixedly installed on the end, a support spring is sleeved on the surface of the support rod, mounting blocks are fixedly installed on both sides of the mounting sleeve, and the mounting blocks are connected to the inner wall of the flushing hole.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, when the connecting frame is connected to the reciprocating device, the connecting frame drives the piston to move repeatedly inside the pump body through the plug. When the piston moves to the insertion ring position, the piston contacts the rubber sealing sleeve, and the piston drives the rubber sealing sleeve to move. The rubber sealing sleeve moves along the surface of the fixed ring seat. The rubber sealing sleeve drives the clamping rod to move toward the inside of the fixed ring seat. The clamping rod drives the pressure ring to move. The pressure ring drives the compression spring to stretch. Under the action of the compression spring, the rubber sealing sleeve can fit tightly with the piston, thereby enhancing the sealing performance.

[0017] In the utility model, when the sealing cover is connected to the pump body, the rubber sealing bubble and the sealing ring are inserted into the interior of the sealing groove. The user can fill liquid or gas into the interior of the rubber sealing bubble through the flushing hole, so that the interior of the rubber sealing bubble is filled with gas or liquid. The rubber sealing bubble fits tightly with the inner wall of the sealing groove, thereby enhancing the sealing performance.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the device of the present utility model;

[0021] Figure 2 This is a schematic diagram of the side structure of the device of the present utility model;

[0022] Figure 3 This is a half-section schematic diagram of the internal structure of the device of the present invention;

[0023] Figure 4 For the utility model Figure 3 A in the middle is an enlarged structural diagram;

[0024] Figure 5 For the utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 100. Pump body; 200. Sealing cover; 210. Mounting screw hole; 220. Insert ring; 230. Fixed ring seat; 240. Rubber sealing sleeve; 241. Compression rod; 242. Compression spring; 243. Compression ring; 250. Sealing groove; 300. Connecting frame; 310. Plug; 320. Sealing ring; 321. Rubber sealing bubble; 330. Flushing hole; 331. Connecting head; 332. Retaining ring; 333. Sealing block; 334. Mounting sleeve; 335. Mounting block; 336. Support rod; 337. Support spring; 338. Moving block. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1 to 4 As shown, the present embodiment provides a sealing and pressing device for a ceramic plunger pump, comprising a pump body 100, a sealing cover plate detachably mounted on one side of the pump body 100, a plug 310 movably inserted in the middle of the sealing cover plate, one end of the plug 310 movably inserted in the interior of the pump body 100 and mounted with a piston, a connecting frame 300 mounted on the other end of the plug 310, a sealing structure is provided between the sealing cover plate and the pump body 100, mounting screw holes 210 are provided at both ends of the pump body 100 and the sealing gland 200, the pump body 100 can be connected to the sealing gland 200 by means of mounting bolts penetrating the mounting screw holes 210, so as to facilitate fixing the sealing cover plate, and the sealing structure comprises an insert ring 22 0, the insert ring 220 is inserted into the interior of the pump body 100, the insert ring 220 fits with the inner wall of the pump body 100, a fixed ring seat 230 is provided on one side of the insert ring 220, the outer movably sleeve of the fixed ring seat 230 is provided with a rubber sealing sleeve 240, the inner wall of the rubber sealing sleeve 240 fits with the fixed ring seat 230, and a clamping rod 241 is movably installed inside the fixed ring seat 230, one end of the clamping rod 241 is movably inserted into the outer side of the fixed ring seat 230 and is connected to the rubber sealing sleeve 240, a surface sleeve of the clamping rod 241 is provided with a clamping spring 242, one end of the clamping rod 241 is fixedly installed with a clamping ring 243, and the clamping ring 243 is connected to the clamping spring 242;

[0029] In this embodiment, when the connecting frame 300 is connected to the reciprocating device, the connecting frame 300 drives the piston to move repeatedly inside the pump body 100 through the piston rod 310. When the piston moves to the position of the insertion ring 220, the piston contacts the rubber sealing sleeve 240, and the piston drives the rubber sealing sleeve 240 to move. The rubber sealing sleeve 240 moves along the surface of the fixed ring seat 230. The rubber sealing sleeve 240 drives the clamping rod 241 to move toward the inside of the fixed ring seat 230. The clamping rod 241 drives the pressure ring 243 to move. The pressure ring 243 drives the compression spring 242 to stretch. Under the action of the compression spring 242, the rubber sealing sleeve 240 can fit tightly with the piston, thereby enhancing the sealing performance.

[0030] like Figure 3 and Figure 5As shown, this embodiment provides a sealing and pressing device for a ceramic plunger pump. A sealing groove 250 is provided at one end of the pump body 100. A sealing ring 320 is movably inserted into the sealing groove 250. One end of the sealing ring 320 is fixedly connected to the sealing gland 200. A rubber sealing bubble 321 is provided at one end of the sealing ring 320. A flushing hole 330 is provided inside the sealing ring 320. The flushing hole 330 is connected to the rubber sealing bubble 321. A connector 331 connected to the flushing hole 330 is provided on one side of the sealing gland 200.

[0031] In this embodiment, when the sealing cover is connected to the pump body 100, the rubber sealing bubble 321 and the sealing ring 320 are inserted into the interior of the sealing groove 250. The user can fill liquid or gas into the interior of the rubber sealing bubble 321 through the flushing hole 330, so that the interior of the rubber sealing bubble 321 is filled with gas or liquid. The rubber sealing bubble 321 fits tightly against the inner wall of the sealing groove 250, thereby enhancing the sealing performance.

[0032] like Figure 3 and Figure 5 As shown, the present embodiment provides a sealing and pressing device of a ceramic plunger pump, wherein a retaining ring 332 is provided inside the flushing hole 330, and a mounting sleeve 334 is installed inside the flushing hole 330. A support rod 336 is movably inserted into one end of the mounting sleeve 334, and a sealing block 333 is fixedly installed on one end of the support rod 336. The sealing block 333 is engaged with the retaining ring 332, and one end of the support rod 336 is movably inserted into the interior of the mounting sleeve 334 and a moving block 338 is fixedly installed on the end. A supporting spring 337 is sleeved on the surface of the support rod 336, and mounting blocks 335 are fixedly installed on both sides of the mounting sleeve 334, and the mounting blocks 335 are connected to the inner wall of the flushing hole 330;

[0033] In this embodiment, when liquid or gas enters the flushing hole 330, it impacts the sealing block 333, and the sealing block 333 is separated from the retaining ring 332 by the impact. The sealing block 333 drives the support rod 336 to move, and the support rod 336 drives the moving block 338 to move, stretching the support spring 337. When the liquid or gas fills the rubber sealing bubble 321 and the filling or inflation stops, the moving block 338 returns to its original position under the action of the support spring 337, so that the sealing block 333 is engaged with the retaining ring 332 to prevent liquid or gas leakage and affect the sealing effect.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sealing and pressing device for a ceramic plunger pump, comprising a pump body (100), characterized in that: A sealing cover plate is detachably mounted on one side of the pump body (100), a plug rod (310) is movably inserted in the middle of the sealing cover plate, one end of the plug rod (310) is movably inserted into the interior of the pump body (100) and is mounted with a piston, and a connecting frame (300) is mounted on the other end of the plug rod (310), a sealing structure is provided between the sealing cover plate and the pump body (100), and mounting screw holes (210) are provided at both ends of the pump body (100) and the sealing gland (200).

2. The sealing and pressing device of a ceramic plunger pump according to claim 1, characterized in that: The sealing structure comprises an insert ring (220), wherein the insert ring (220) is inserted into the interior of the pump body (100), and the insert ring (220) is in contact with the inner wall of the pump body (100).

3. The sealing and pressing device of a ceramic plunger pump according to claim 2, characterized in that: A fixed ring seat (230) is provided on one side of the insert ring (220), and a rubber sealing sleeve (240) is provided on the outer movable sleeve of the fixed ring seat (230), and the inner wall of the rubber sealing sleeve (240) is in contact with the fixed ring seat (230).

4. The sealing and pressing device of a ceramic plunger pump according to claim 3, characterized in that: A pressing rod (241) is movably installed inside the fixed ring seat (230), one end of the pressing rod (241) is movably inserted into the outside of the fixed ring seat (230) and is connected to the rubber sealing sleeve (240), a pressing spring (242) is sleeved on the surface of the pressing rod (241), and a pressing ring (243) is fixedly installed on one end of the pressing rod (241), and the pressing ring (243) is connected to the pressing spring (242).

5. The sealing and pressing device of a ceramic plunger pump according to claim 4, characterized in that: A sealing groove (250) is formed at one end of the pump body (100), a sealing ring (320) is movably inserted into the interior of the sealing groove (250), one end of the sealing ring (320) is fixedly connected to the sealing gland (200), and a rubber sealing bubble (321) is provided at one end of the sealing ring (320).

6. The sealing and pressing device of a ceramic plunger pump according to claim 5, characterized in that: A flushing hole (330) is provided inside the sealing ring (320), and the flushing hole (330) is connected to the rubber sealing bubble (321). A connector (331) connected to the flushing hole (330) is provided on one side of the sealing gland (200).

7. The sealing and pressing device of a ceramic plunger pump according to claim 6, characterized in that: A retaining ring (332) is provided inside the flushing hole (330), and a mounting sleeve (334) is installed inside the flushing hole (330). A support rod (336) is movably inserted into one end of the mounting sleeve (334), and a sealing block (333) is fixedly installed at one end of the support rod (336). The sealing block (333) is engaged with the retaining ring (332).

8. The sealing and pressing device of a ceramic plunger pump according to claim 7, characterized in that: One end of the support rod (336) is movably inserted into the interior of the mounting sleeve (334) and a moving block (338) is fixedly installed on the end. A support spring (337) is sleeved on the surface of the support rod (336). Mounting blocks (335) are fixedly installed on both sides of the mounting sleeve (334). The mounting blocks (335) are connected to the inner wall of the flushing hole (330).

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