Sealing structure of solid pump

Abstract

The utility model provides a sealing structure of a solid pump, which is characterized in that a pressing flange is detachably arranged at the first end of a copper sleeve through a fastener, a scraping component for scraping materials on the outer wall of a movable part is arranged at the second end of the copper sleeve, a combined sealing ring is arranged between the copper sleeve and the scraping component, and a sealing flange is sleeved on the outer walls of the copper sleeve and a combined sealing part. A limiting piece is arranged on the inner wall of the sealing flange and located between the scraping assembly and the combined sealing ring, the first sealing piece is arranged at the first end of the sealing flange, and the second sealing piece is arranged between the sealing flange and the supporting base. By means of the sealing structure, foreign matter can be effectively limited from entering the copper sleeve through the scraping assembly, the copper sleeve is prevented from being rapidly abraded, the service life of the copper sleeve is prolonged, multiple sealing is achieved through the first sealing piece, the second sealing piece and the combined sealing piece, external foreign matter is further prevented from entering the copper sleeve, and therefore the service life of the copper sleeve is prolonged. And the service life of the copper sleeve can be effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of solid pumps, specifically a sealing structure for a solid pump. Background Technology

[0002] A solids pump is a conveying mechanism used to transport materials that are "difficult to transport" and have a high content of solids and foreign objects (such as broken strips from barrels, wood, etc.). The plunger cylinder and the gate plunger rod are the key parts of the solids pump. However, the sealing performance of the plunger, whether it is the plunger cylinder or the gate plunger rod, directly affects the performance and safety of the solids pump.

[0003] Existing plungers are generally arranged horizontally or vertically. The plungers are usually guided by copper sleeves and sealed with sealing rings. However, if the existing plungers are not well sealed, foreign objects can easily enter the copper sleeve, causing the copper sleeve to wear quickly. After the copper sleeve wears down, the plunger rod will deflect and squeeze the sealing ring, causing the sealing ring to be damaged quickly. Therefore, there is an urgent need for a sealing structure that can prevent foreign objects from entering the copper sleeve. Utility Model Content

[0004] In view of this, the present invention provides a sealing structure for a solid pump to solve the problem that existing plungers, due to poor sealing, allow foreign objects to easily enter the copper sleeve, thereby causing rapid wear of the copper sleeve.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A sealing structure for a solid pump, suitable for a plunger mechanism, the plunger mechanism including a movable part and a support base, the movable part being a plunger cylinder or a plunger rod, the sealing structure including: a copper sleeve, a sealing flange, a clamping flange, a first seal, a second seal, a combined seal, a scraping assembly, and fasteners;

[0007] The clamping flange is detachably mounted on the first end of the copper sleeve by fasteners, wherein the copper sleeve is fitted onto the movable part;

[0008] The scraping component is located at the second end of the copper sleeve and is used to scrape off the material on the outer wall of the moving part;

[0009] A combined sealing ring is positioned between the copper sleeve and the scraping assembly;

[0010] The sealing flange is fitted onto the outer wall of the copper sleeve and the combined seal, and the inner wall of the sealing flange is provided with a limiting element, wherein the limiting element is located between the scraping assembly and the combined sealing ring.

[0011] The first sealing element is disposed at the first end of the sealing flange;

[0012] The second seal is located between the sealing flange and the support.

[0013] Preferably, the scraping assembly includes: an annular elastic element and a plurality of arc-shaped scrapers;

[0014] Multiple arc-shaped scrapers are arranged circumferentially along the plunger rod or plunger cylinder to form an annular component;

[0015] The annular elastic element is fitted onto the annular element.

[0016] Preferably, the outer side of the arc-shaped scraper is provided with a groove that engages with the annular elastic element.

[0017] Preferably, the annular elastic element is an annular spring.

[0018] Preferably, the sealing flange is also fitted onto the first end of the compression flange near the copper sleeve.

[0019] Preferably, the movable part is a plunger cylinder, and the scraping assembly is located inside the sealing flange.

[0020] Preferably, the movable part is a plunger cylinder, and the first sealing element is disposed between the sealing flange and the copper sleeve.

[0021] Preferably, the movable part is a plunger rod, and the number of second seals is multiple.

[0022] Preferably, the movable part is a plunger rod, and the first sealing element is disposed between the sealing flange and the clamping flange.

[0023] Preferably, the first and second seals are O-rings.

[0024] Based on the sealing structure of the solid pump provided by this utility model, a clamping flange is detachably mounted on the first end of the copper sleeve via fasteners. A scraping assembly for scraping material off the outer wall of the moving part is mounted on the second end of the copper sleeve. A combined sealing ring is mounted between the copper sleeve and the scraping assembly. A sealing flange is fitted onto the outer wall of the copper sleeve and the combined sealing assembly. A limiting member is provided on the inner wall of the sealing flange, and the limiting member is positioned between the scraping assembly and the combined sealing ring. A first sealing member is mounted on the first end of the sealing flange, and a second sealing member is mounted between the sealing flange and the support base. Through the disclosed sealing structure, the scraping assembly can restrict foreign objects from entering the copper sleeve, thus improving the service life of the copper sleeve. Furthermore, the multiple sealing elements—the first, second, and combined sealing members—effectively prevent external foreign objects from entering the copper sleeve, thereby further extending the service life of the copper sleeve. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A schematic diagram of a solid pump with a sealing structure disposed in a plunger cylinder, provided for an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of a solid pump with a sealing structure disposed on a plunger rod, provided for an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the scraping component provided in an embodiment of the present utility model.

[0029] The components include: plunger cylinder 1, plunger rod 2, copper sleeve 3, sealing flange 4, clamping flange 5, first seal 6, second seal 7, combined seal 8, scraping assembly 9, annular elastic element 91, arc-shaped scraper 92, fastener 10, and support seat 11. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model embodiment provides a sealing structure for a solid pump, see [link to relevant documentation]. Figure 1 or Figure 2 and combined Figure 3 The sealing structure is suitable for a plunger mechanism, which includes a movable part and a support seat 11. The movable part is either a plunger cylinder 1 or a plunger rod 2.

[0032] The sealing structure includes: copper sleeve 3, sealing flange 4, compression flange 5, first seal 6, second seal 7, combined seal 8, scraping assembly 9, and fastener 10;

[0033] The clamping flange 5 is detachably mounted on the first end of the copper sleeve 3 via fastener 10, wherein the copper sleeve 3 is fitted onto the movable part;

[0034] The scraping component 9 is located at the second end of the copper sleeve 3 and is used to scrape off the material on the outer wall of the moving part;

[0035] A combined sealing ring is disposed between the copper sleeve 3 and the scraping component 9;

[0036] The sealing flange 4 is fitted onto the outer wall of the copper sleeve 3 and the combined seal 8. The inner wall of the sealing flange 4 is provided with a limiting member, which is located between the scraping assembly 9 and the combined sealing ring.

[0037] The first sealing element 6 is disposed at the first end of the sealing flange 4;

[0038] The second sealing element 7 is disposed between the sealing flange 4 and the support seat 11.

[0039] It should be noted that, since a scraping component 9 is provided between the copper sleeve 3 and the support base 11 in this application, when the moving part passes through the scraping component 9, the scraping component 9 can scrape off the material on the outer wall of the moving part, thus preventing foreign objects on the outer wall of the moving part from entering the copper sleeve 3.

[0040] It should also be noted that the combined seal 8 is a combination of metal and rubber materials. The metal part provides rigid support and stability, while the rubber part seals the copper sleeve 3 and the sealing flange 4.

[0041] It is worth noting that the plunger mechanism in this application can be a solid pump, specifically the main plunger or gate plunger of a solid pump.

[0042] In this embodiment, the clamping flange 5 is detachably mounted on the first end of the copper sleeve 3 via fastener 10. A scraping assembly 9 for scraping material from the outer wall of the movable part is mounted on the second end of the copper sleeve 3. A combined sealing ring is positioned between the copper sleeve 3 and the scraping assembly 9. A sealing flange 4 is fitted onto the outer wall of the copper sleeve 3 and the combined sealing element 8. A limiting element is provided on the inner wall of the sealing flange 4, and this limiting element is positioned between the scraping assembly 9 and the combined sealing ring. A first sealing element 6 is mounted on the first end of the sealing flange 4, and a second sealing element 7 is mounted between the sealing flange 4 and the support base 11. Through the disclosed sealing structure, the scraping assembly 9 effectively restricts foreign objects from entering the copper sleeve 3, preventing rapid wear and extending the service life of the copper sleeve 3. Furthermore, the first sealing element 6, the second sealing element 7, and the combined sealing element 8 provide multiple layers of sealing, further preventing external foreign objects from entering the copper sleeve 3. Therefore, the service life of the copper sleeve 3 can be effectively extended.

[0043] Specifically, the scraping component 9 includes: an annular elastic element 91 and multiple arc-shaped scrapers 92;

[0044] Multiple arc-shaped scrapers 92 are arranged circumferentially along the plunger rod 2 or plunger cylinder 1 to form an annular component;

[0045] The annular elastic element 91 is fitted onto the annular element.

[0046] It should be noted that there is a certain gap between the adjacent arc-shaped scrapers 92 in this application. Thus, when the arc-shaped scrapers 92 are worn, the multiple arc-shaped scrapers 92 can always keep in contact with the moving parts under the elastic restoring force of the annular elastic element 91, thereby improving the service life of the scraping assembly 9 and effectively preventing foreign objects from entering the copper sleeve 3. Therefore, the service life of the copper sleeve 3 can be further improved.

[0047] It should also be noted that when the annular elastic element 91 is fitted onto the annular part, the multiple arc-shaped scrapers 92 remain in contact with the moving part under the elastic restoring force provided by the annular elastic element 91.

[0048] Furthermore, the outer side of the arc-shaped scraper 92 is provided with a groove that engages with the annular elastic member 91.

[0049] It should be noted that by providing a slot on the outer side of the arc-shaped scraper 92 that engages with the annular elastic element 91, the separation of the annular elastic element 91 from the annular element formed by the multiple arc-shaped scrapers 92 can be effectively prevented. This ensures that the multiple arc-shaped scrapers 92 can always remain in contact with the moving part under the elastic restoring force of the annular elastic element 91, further improving the service life of the scraping assembly 9 and effectively preventing foreign objects from entering the copper sleeve 3.

[0050] Specifically, the annular elastic element 91 is an annular spring.

[0051] It should be noted that the annular elastic element 91 can be an annular spring, a rubber band, or an annular elastic element 91 made of other materials with good elastic deformation. Those skilled in the art can choose according to their needs.

[0052] Specifically, the sealing flange 4 is also fitted onto the first end of the clamping flange 5 near the copper sleeve 3.

[0053] It should be noted that the first end of the clamping flange 5 near the copper sleeve 3 is set as the mating end that mates with the sealing flange 4. That is, this mating end can extend into the sealing flange 4. Thus, when the sealing flange 4 is fitted onto the first end of the clamping flange 5 near the copper sleeve 3, the sealing flange 4 can abut against the clamping flange 5. In this way, the sealing flange 4, the copper sleeve 3, and the clamping flange 5 can form a stepped sealing structure, which effectively prevents foreign objects from entering through the gap between the clamping flange 5 and the copper sleeve 3. Therefore, fitting the sealing flange 4 onto the first end of the clamping flange 5 near the copper sleeve 3 can further improve the overall sealing performance of the sealing structure.

[0054] Since the movable part of this application can be either a plunger cylinder 1 or a plunger rod 2, the sealing structure is different because the support seat 11 provided for the plunger cylinder 1 and the plunger rod 2 are structurally different. Examples are given below.

[0055] Specifically, when the movable part is the plunger cylinder 1, the scraping assembly 9 is installed inside the sealing flange 4.

[0056] It should be noted that, since the support seat 11 of the plunger cylinder 1 has a flat opening at the sealing structure mounting point, refer to... Figure 1 Therefore, by placing the scraping assembly 9 inside the sealing flange 4, and sealing the flange 4 with the support seat 11 through the second sealing element 7, foreign objects can be effectively prevented from entering the scraping assembly 9.

[0057] Specifically, when the movable part is the plunger cylinder 1, the first sealing element 6 is disposed between the sealing flange 4 and the copper sleeve 3.

[0058] It should be noted that placing the first sealing element 6 between the sealing flange 4 and the copper sleeve 3 can further improve the sealing performance between the copper sleeve 3 and the sealing flange 4, and can prevent foreign objects from entering between the sealing flange 4 and the copper sleeve 3.

[0059] Since the active component of this application is the plunger rod 2, the number of second seals 7 is multiple.

[0060] It should be noted that there is a certain gap between the plunger rod 2 and the support seat 11, for reference. Figure 2 The lower part of the outer wall of the sealing flange 4 is located inside the support seat 11, which makes the contact area between the sealing flange 4 and the support seat 11 larger. In this application, the number of second sealing elements 7 is set to multiple and arranged along the axial direction of the sealing flange 4, which can further improve the sealing performance between the sealing flange 4 and the support seat 11 and prevent foreign objects from entering the scraping assembly 9.

[0061] Specifically, the movable part is the plunger rod 2, and the first sealing element 6 is disposed between the sealing flange 4 and the clamping flange 5.

[0062] It should be noted that placing the first sealing element 6 between the sealing flange 4 and the clamping flange 5 can further prevent foreign objects from entering the copper sleeve 3 through the gap at the contact point between the sealing flange 4 and the clamping flange 5, thereby further improving the service life of the copper sleeve 3.

[0063] Preferably, the fastener 10 is a screw.

[0064] It should be noted that the fastener 10 can be a screw or other fastener that can fix the clamping flange 5 to the copper sleeve 3. Those skilled in the art can choose according to their needs.

[0065] Specifically, the first sealing element 6 and the second sealing element 7 are O-rings.

[0066] It should be noted that the first sealing element 6 and the second sealing element 7 can be O-rings or other shapes of sealing elements, and those skilled in the art can choose according to their needs.

[0067] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure for a solid pump, suitable for a plunger mechanism, the plunger mechanism comprising a movable component and a support base, the movable component being a plunger cylinder or a plunger rod, characterized in that, The sealing structure includes: a copper sleeve, a sealing flange, a compression flange, a first sealing element, a second sealing element, a combined sealing element, a scraping assembly, and fasteners; The clamping flange is detachably mounted on the first end of the copper sleeve via the fastener, wherein the copper sleeve is fitted onto the movable part; The scraping component is disposed at the second end of the copper sleeve and is used to scrape off the material on the outer wall of the moving part. A combined sealing ring is disposed between the copper sleeve and the scraping assembly; The sealing flange is sleeved on the outer wall of the copper sleeve and the combined sealing element, and the inner wall of the sealing flange is provided with a limiting element, wherein the limiting element is located between the scraping assembly and the combined sealing ring; The first sealing element is disposed at the first end of the sealing flange; The second seal is disposed between the sealing flange and the support.

2. The solid pump seal structure of claim 1, wherein The scraping assembly includes: an annular elastic element and multiple arc-shaped scrapers; Multiple arc-shaped scrapers are arranged circumferentially along the plunger rod or plunger cylinder to form an annular component; The annular elastic element is sleeved on the annular element.

3. The solid pump seal construction of claim 2 wherein, The outer side of the arc-shaped scraper is provided with a groove that engages with the annular elastic element.

4. The solid pump seal structure of claim 2, wherein The annular elastic element is an annular spring.

5. The solid pump seal structure of claim 1, wherein The sealing flange is also fitted onto the first end of the clamping flange near the copper sleeve.

6. The solid pump seal structure of claim 1, wherein The movable component is a plunger cylinder, and the scraping assembly is disposed inside the sealing flange.

7. The solid pump seal structure of claim 1, wherein The movable component is a plunger cylinder, and the first sealing element is disposed between the sealing flange and the copper sleeve.

8. The solid pump seal structure of claim 1, wherein, The movable component is a plunger rod, and there are multiple second seals.

9. The solid pump seal construction of claim 1 wherein, The movable component is a plunger rod, and the first sealing element is disposed between the sealing flange and the clamping flange.

10. The solid pump seal structure of claim 1, wherein, The first seal and the second seal are O-rings.

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