Large-flow ink delivery pump

By designing grooves, ink leak sensors, and detachable connection components on the flange of the ink delivery pump, the problem of oil leakage caused by seal aging is solved, enabling leak detection and compatibility expansion, and improving safety and applicability.

CN223881343UActive Publication Date: 2026-02-06FOSHAN LAKER FLUID TECH CO LTD
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Patent Information

Application Number
CN202520787870.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-02-06
Estimated Expiration
2035-04-24

AI Technical Summary

Technical Problem

Existing ink delivery pumps are prone to oil leakage due to aging of the seals after prolonged use. This leakage is difficult to detect and poses a safety hazard. In addition, the fixed flange cannot be replaced, limiting its adaptability.

Method used

A high-flow-rate ink delivery pump was designed, which features a groove on the flange outside the sealing head and is equipped with an ink leakage sensor. Leakage is detected by the ink leakage sensor in the groove, and the flange can be disassembled and replaced through a connecting assembly.

Benefits of technology

It enables timely detection of ink leaks, reduces safety hazards, avoids environmental pollution and raw material waste, and expands the adaptability of the delivery pump.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223881343U_ABST
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Abstract

The utility model discloses a large flow printing ink delivery pump, which relates to the technical field of printing ink pumps and comprises a delivery pump body, a sealing head is mounted on one side of the delivery pump body, a first sealing groove and a second sealing groove are formed in one side, far away from the delivery pump body, of the sealing head, and a flange plate is sleeved on the outer side of the sealing head. A fitting groove is formed in the side, close to the sealing head, of the flange plate, the sealing head is connected into the fitting groove in a fitting mode, and a connecting assembly is arranged between the flange plate and the sealing head. By the adoption of the structure, the groove is formed in the flange plate outside the sealing head, after ink leaks from the pipeline connecting position, part of ink enters the groove and is detected through the ink leakage sensor in the groove, and therefore potential leakage risks can be found in time for maintenance, potential safety hazards are reduced, and the working efficiency is improved. And environmental pollution caused by ink leakage and waste of raw materials are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ink pump, especially large -flow ink delivery pump. BACKGROUND

[0002] In modern printing and related industries, as a key consumable, the efficient and accurate delivery of ink plays a crucial role in the production process and product quality. Ink, usually formed by uniformly mixing the main components and auxiliary components and repeatedly rolling, is a viscous colloidal fluid with high viscosity. This fluid needs to be delivered by an ink delivery pump. The delivery pump requires high sealing to prevent ink leakage.

[0003] For example, the Chinese patent with publication number CN213743858U discloses a sealing structure of a fluid delivery pump, which includes a high-pressure block, a high-pressure manifold, a high-pressure one-way rod, and a one-way plug. A first recess and a second recess are provided on the inner wall of one side of the high-pressure block. A first sealing ring is provided in each of the first recess and the second recess. A fourth recess is provided on one side of the high-pressure manifold. A non-standard sealing ring is provided in the fourth recess. A fifth recess is provided on the high-pressure one-way rod. A sixth recess is provided on the inner wall of the one-way plug. The first sealing ring is provided in the fifth recess and the sixth recess.

[0004] The above-mentioned patent uses multi-stage sealing to solve the problem of ink leakage of existing delivery pumps. However, there are still some defects that need to be improved. Specifically, although multi-stage sealing can effectively prevent ink leakage, the sealing part may age after long-term use, which may cause oil leakage. The existing delivery pump cannot detect this phenomenon, which may cause safety hazards. In addition, the flange plate of the installation structure is fixed on the delivery pump and cannot be replaced, which greatly limits the adaptability of the delivery pump. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the purpose of the utility model is to provide a large-flow ink delivery pump to solve the problems mentioned in the background art.

[0006] The above technical purpose of the utility model is achieved by the following technical solutions:

[0007] A large-flow ink delivery pump includes a delivery pump body. A sealing head is installed on one side of the delivery pump body. First and second sealing grooves are provided on the side of the sealing head away from the delivery pump body. A flange plate is sleeved on the outside of the sealing head. A fitting groove is provided on the side of the flange plate close to the sealing head. The sealing head is connected to the inside of the fitting groove. A connecting assembly is provided between the flange plate and the sealing head. A detection assembly is provided on one side of the inside of the flange plate. An outlet hole is provided on the side of the delivery pump body away from the sealing head.

[0008] The detection assembly comprises a groove, which is arranged on the inner side of the fitting groove, and an ink leakage sensor is arranged in the groove.

[0009] As a preferred technical solution, the inner wall of the groove is in a slope structure, a water collecting groove is arranged on the bottom side of the groove, and the ink leakage sensor is fixedly connected in the water collecting groove.

[0010] As a preferred technical solution, a threaded head is fixedly connected to the side of the conveying pump body close to the sealing head, a screw groove is arranged on the side of the sealing head close to the conveying pump body, and the threaded head is threadedly connected with the screw groove.

[0011] As a preferred technical solution, a plurality of mounting holes are arranged on the outer side of the sealing head of the flange plate.

[0012] As a preferred technical solution, the connecting assembly comprises a clamping hole, which is arranged on the side of the sealing head away from the first sealing groove and the second sealing groove, a clamping block is clamped in the clamping hole, a sliding block is fixedly connected to the side of the clamping hole, a sliding groove is arranged on each of the two sides of the flange plate close to the fitting groove, the sliding groove is in communication with the fitting groove, the sliding block is slidingly connected in the sliding groove, a spring is fixedly connected to the side of the sliding block, and the side of the spring is fixedly connected to the inner side of the sliding groove.

[0013] As a preferred technical solution, a guide groove is arranged on each of the two sides of the sliding groove, and a guide block is slidingly connected in the guide groove.

[0014] In summary, the present application mainly has the following beneficial effects:

[0015] First, the present application can detect potential leakage risks in time by arranging the groove on the flange plate outside the sealing head, so that part of the ink can enter the groove after ink leakage at the pipeline connection, and the ink leakage sensor in the groove can detect the ink, thereby reducing potential safety hazards and avoiding environmental pollution and raw material waste caused by ink leakage.

[0016] Second, the present application can replace the flange plate on the sealing head by arranging the connecting assembly, so that the replaceable flange plate can easily adapt the conveying pump body to different sizes of pipelines, thereby widening the application range of the conveying pump body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2It is the separated structure schematic view of the conveying pump body and the sealing head of the utility model;

[0019] Figure 3 It is the sectional structure schematic view of the flange plate of the utility model;

[0020] Figure 4 It is the top view structure schematic view of the flange plate of the utility model;

[0021] Figure 5 It is the utility model Figure 4 A place enlarged structure schematic view.

[0022] Reference signs: 1, conveying pump body;2, sealing head;3, flange plate;4, mounting hole;5, discharge hole;6, screw head;7, screw groove;8, first sealing groove;9, second sealing groove;10, fitting groove;11, connecting assembly;111, clamping hole;112, clamping block;113, sliding block;114, sliding groove;115, spring;116, guide block;117, guide groove;12, detection assembly;121, groove;122, water collecting groove;123, ink leakage sensor. Specific implementation Embodiment

[0023] Reference Figures 1 to 5 , a large flow ink conveying pump, including conveying pump body 1, the conveying pump body 1 one side is provided with sealing head 2, the sealing head 2 is away from the conveying pump body 1 one side and is provided with first sealing groove 8 and second sealing groove 9, first sealing groove 8 and second sealing groove 9 are installed sealing ring, enhance the sealing property between sealing head 2 and connecting component, reduce the risk of ink leakage, the outer side of sealing head 2 is sleeved with flange plate 3, the flange plate 3 is provided with fitting groove 10 on the side close to sealing head 2, the sealing head 2 is connected in the inside of fitting groove 10, connecting assembly 11 is arranged between flange plate 3 and sealing head 2, flange plate 3 is tightly fitted with sealing head 2 through fitting groove 10, and is connected through connecting assembly 11, so that the whole connecting structure is more compact, stable, the inside one side of flange plate 3 is equipped with detection assembly 12, the conveying pump body 1 is provided with discharge hole 5 on the side away from sealing head 2, the detection assembly 12 includes groove 121, the groove 121 is provided in the inside one side of fitting groove 10, the ink leakage sensor 123 is installed in the inside of groove 121, when the pipeline connection place occurs ink leakage, the leaked ink will flow into groove 121, the ink leakage sensor 123 can detect the existence of ink in time and send alarm signal, so that staff can take measures in time, avoid the deterioration of leakage condition, reduce security risks and raw material waste.

[0024] Reference Figure 5The inner wall of the groove 121 is a slope structure, a water collecting groove 122 is arranged on the bottom side of the groove 121, and an ink leakage sensor 123 is fixedly connected in the water collecting groove 122; the slope structure of the inner wall of the groove 121 can make the leaked ink more easily collect in the water collecting groove 122, ensure that even a small amount of ink leakage can be detected by the ink leakage sensor 123, and improve the sensitivity of detection.

[0025] With reference to Figure 2 The sealing head 2 is provided with a screw groove 7 on the side close to the conveying pump body 1, and the screw head 6 is threadedly connected with the screw groove 7; the threaded connection makes the installation and dismounting of the sealing head 2 and the conveying pump body 1 more convenient, facilitates the maintenance, repair and replacement of the sealing head 2, and reduces the maintenance cost and time.

[0026] With reference to Figure 3 The flange plate 3 is provided with a plurality of mounting holes 4 on the outer side of the sealing head 2, and the mounting holes 4 provide convenience for the connection of the flange plate 3 and other components, and the flange plate 3 and other components can be firmly connected together through connecting members such as bolts.

[0027] With reference to Figures 2-3 The connecting assembly 11 comprises a clamping hole 111, the clamping hole 111 is arranged on the side of the sealing head 2 away from the first sealing groove 8 and the second sealing groove 9, a clamping block 112 is clamped in the clamping hole 111, a sliding block 113 is fixedly connected to one side of the clamping hole 111, sliding grooves 114 are arranged on both sides of the sealing head 2 close to the fitting groove 10, the sliding grooves 114 are in communication with the fitting groove 10, the sliding block 113 is slidingly connected in the sliding grooves 114, a spring 115 is fixedly connected to one side of the sliding block 113, and one side of the spring 115 is fixedly connected to one side in the sliding grooves 114; through the clamping cooperation of the clamping block 112 and the clamping hole 111, the sliding of the sliding block 113 in the sliding grooves 114 and the elastic action of the spring 115, the flange plate 3 can be conveniently connected with and separated from the sealing head 2, different specifications of the flange plate 3 can be replaced according to actual needs, different sizes of pipelines can be adapted, the spring 115 can make the clamping block 112 and the clamping hole 111 keep close, the connection between the flange plate 3 and the sealing head 2 is stable, and loosening and displacement in the working process are prevented.

[0028] With reference to Figure 5The inside of the sliding groove 114 is provided with a guide groove 117 on both sides, the inside of the guide groove 117 is slidably connected with a guide block 116, and one side of the guide block 116 is fixedly connected with one side of the sliding block 113. The cooperation of the guide groove 117 and the guide block 116 can guide the sliding of the sliding block 113, ensure the smooth sliding of the sliding block 113 in the sliding groove 114, avoid the jamming or deviation of the sliding block 113 in the sliding process, and thus ensure the normal work of the connecting assembly 11 and the smooth replacement of the flange plate 3.

[0029] Principle and advantages: The flange plate 3 is sleeved outside the sealing head 2, so that the sealing head 2 is attached to the inside of the attaching groove 10. In this process, the clamping hole 111 is under the action of the spring 115, so that the sliding block 113 connected with the clamping block 112 slides in the sliding groove 114. When the clamping block 112 is aligned with the clamping hole 111, the spring 115 resets the clamping block 112 to be clamped into the clamping hole 111, so that the flange plate 3 is connected with the sealing sleeve. During this period, the cooperation of the guide grooves 117 on both sides of the sliding groove 114 and the guide blocks 116 ensures the smooth sliding of the sliding block 113, prevents jamming or deviation, and installs the sealing head 2 on one side of the conveying pump body 1 through the threaded connection of the screw head 6 and the screw groove 7. When the sealing head 2 is connected with the connecting component, the conveying pump body 1 starts to work, and starts the large-flow ink conveying work. In the running process, if the ink leakage occurs at the pipeline connection, part of the leaked ink will flow into the water collecting groove 122 in the groove 121 along the slope. At this time, the ink leakage sensor 123 quickly detects the existence of the ink and sends an alarm signal to remind the staff to take timely maintenance measures to avoid leakage deterioration, reduce safety hazards, prevent environmental pollution and raw material waste. When facing different size pipeline connection requirements, the characteristics of the connecting assembly 11 are used to separate the clamping block 112 from the clamping hole 111, so that the sliding block 113 slides in the sliding groove 114, thereby conveniently separating the existing flange plate 3 from the sealing head 2 and replacing it with a flange plate 3 suitable for different size pipelines, thereby widening the application range of the conveying pump body 1.

Claims

1. A high-flow ink delivery pump comprising a delivery pump body (1), characterized in that: The side of the conveying pump body (1) is provided with a sealing head (2), the side away from the conveying pump body (1) of the sealing head (2) is provided with a first sealing groove (8) and a second sealing groove (9), the outer side of the sealing head (2) is sleeved with a flange plate (3), the side close to the sealing head (2) of the flange plate (3) is provided with a fitting groove (10), the sealing head (2) is connected in the fitting groove (10), the flange plate (3) and the sealing head (2) are provided with a connecting assembly (11), the inner side of the flange plate (3) is provided with a detection assembly (12), the side away from the sealing head (2) of the conveying pump body (1) is provided with a discharge hole (5); The detection assembly (12) comprises a groove (121), the groove (121) is provided on the inner side of the fitting groove (10), and the inner side of the groove (121) is provided with an ink leakage sensor (123).

2. A high flow ink delivery pump according to claim 1, wherein: The inner wall of the groove (121) is of a slope structure, the bottom side of the groove (121) is provided with a water collecting groove (122), and the inner side of the water collecting groove (122) is fixedly connected with the ink leakage sensor (123).

3. A high flow ink delivery pump according to claim 1, wherein: The side close to the sealing head (2) of the conveying pump body (1) is fixedly connected with a screw head (6), the side close to the conveying pump body (1) of the sealing head (2) is provided with a screw groove (7), and the screw head (6) is in threaded connection with the screw groove (7).

4. A high flow ink delivery pump according to claim 1, wherein: A plurality of mounting holes (4) are formed in the outer side of the sealing head (2) of the flange plate (3).

5. A high flow ink delivery pump according to claim 1 wherein: The connecting assembly (11) comprises a clamping hole (111), the clamping hole (111) is provided on the side away from the first sealing groove (8) and the second sealing groove (9) of the sealing head (2), the inner side of the clamping hole (111) is clamped with a clamping block (112), one side of the clamping hole (111) is fixedly connected with a sliding block (113), and the flange plate (3) is provided with a sliding groove (114) on the two sides of the fitting groove (10) and in communication with the fitting groove (10), and the sliding block (113) is slidably connected in the sliding groove (114).

6. A high flow ink delivery pump according to claim 5, wherein: One side of the sliding block (113) is fixedly connected with a spring (115), and one side of the spring (115) is fixedly connected with one side of the sliding groove (114).

7. A high flow ink delivery pump according to claim 5 wherein: The inner sides of the sliding grooves (114) are provided with guide grooves (117), and the guide grooves (117) are slidably connected with guide blocks (116), and one side of the guide block (116) is fixedly connected with one side of the sliding block (113).

Citation Information

Patent Citations

  • Sealing structure of fluid delivery pump

    CN213743858U