Leakage-proof liquid preparation connecting structure

Abstract

The utility model relates to safe connection technical field, and disclose a leakproof liquid preparation connection structure, including roof, the bottom fixed mounting of roof has the inner tube, the outside of inner tube is sleeved with the outer sleeve, the top of roof is equipped with the mutually symmetrical connecting block, the top fixed mounting of connecting block has the connecting rod, the top of connecting rod is equipped with the rotating lever, both ends of rotating lever all fixed sleeve have the cam, the bottom of connecting block is through to the inside of roof and fixedly installed and has the moving piece, in actual operation, the operator only needs to adjust handle to the horizontal position. With the rotation of handle, can produce the movement extrusion to the top ring through the cam, the shell drives the flange of contact layer and contact piece closely to the upper pipeline, and extrude the sealing washer. This kind of innovative design makes the connection process of liquid preparation pipeline become extremely fast, and the installation and dismounting operation are simple and easy to operate, can effectively reduce the influence of the liquid preparation efficiency caused by the shutdown maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of safe connection technology, and specifically relates to a leak-proof liquid dispensing connection structure. Background Technology

[0002] In fields such as biopharmaceuticals, chemical experiments, and food processing, liquid preparation is a crucial step in mixing various liquid raw materials in specific proportions. The sealing performance of its connection structure directly affects the accuracy of liquid preparation, production safety, and environmental friendliness. Liquid preparation systems typically consist of storage tanks, delivery pipelines, valves, metering devices, etc., connected together by a structural assembly. Liquids are transferred and mixed through these connections under pump pressure or gravity.

[0003] Existing liquid preparation connection structures mostly employ threaded connections and flange connections, but these suffer from insufficient sealing performance and high assembly precision requirements in practical applications. Traditional threaded connections rely on auxiliary sealing components such as PTFE tape and sealing rings, which are prone to leakage after long-term use due to sealing ring aging and thread wear. Flange connections require the even tightening of multiple bolts to ensure a tight seal, but manual operation can easily lead to uneven stress and localized leakage. Furthermore, maintenance is inconvenient; when leakage occurs, the entire joint assembly must be disassembled to replace the seals, which can easily cause liquid residue contamination and result in downtime of 1-2 hours, impacting continuous production efficiency. In addition, compatibility is insufficient: different brands and specifications of liquid preparation equipment have significantly different interface dimensions. Leakage not only causes raw material loss and increases production costs but may also pose risks such as chemical corrosion, biological contamination, and personnel safety hazards. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a leak-proof liquid dispensing connection structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof liquid dispensing connection structure, including a top plate, an inner tube fixedly installed at the bottom of the top plate, an outer tube sleeved on the outside of the inner tube, symmetrical connecting blocks provided at the top of the top plate, a connecting rod fixedly installed at the top of the connecting blocks, a rotating rod provided at the top of the connecting rod, and cams fixedly sleeved at both ends of the rotating rod.

[0006] The bottom of the connecting block extends through to the inside of the top plate and is fixedly installed with a moving block. The inner side of the moving block is threaded with a screw rod, and the top of the top plate is in contact with a sealing ring.

[0007] Preferably, the outer sleeve is fixedly connected to the bottom of the top plate, and symmetrical side blocks are fixedly installed on the outer side of the outer sleeve. The side blocks and the inner side of the outer sleeve are both provided with interconnected threaded holes.

[0008] Preferably, the connecting rod is slidably fitted with a housing, and the housing has an elastic element fitted onto the surface of the connecting rod inside, with both ends of the elastic element being fixedly connected to the housing and the surface of the connecting rod, respectively.

[0009] Preferably, a top ring is fixedly installed on the top of the housing, located on the surface of the connecting rod, the top ring is in contact with the cam, and a connector is fixedly installed on the top of the connecting rod.

[0010] Preferably, the top of the connector is fixedly equipped with mutually symmetrical support members, and the support members and the rotating rod are rotatably connected to each other.

[0011] Preferably, a shift ring is provided between the two support members and is fixedly sleeved with the connecting rod, and a handle is fixedly installed on the outer side of the shift ring.

[0012] Preferably, a contact element is fixedly installed on the outer side of the housing, and a contact layer is fixedly adhered to the bottom of the contact element.

[0013] Preferably, one end of the screw is rotatably connected to the top plate via a bearing, and the other end of the screw is fixedly fitted with a nut embedded in the surface of the top plate.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. In actual operation, the operator only needs to adjust the handle to the horizontal position. As the handle rotates, the cam moves and squeezes the top ring, causing the outer shell to drive the contact element to tightly fit against the flange of the upper pipe, and squeezing the sealing ring. This innovative design makes the connection process of the liquid preparation pipeline extremely quick, and the installation and disassembly operations are simple and easy to learn, effectively reducing the impact of downtime maintenance on liquid preparation efficiency;

[0016] 2. During use, the operator only needs to turn the nut to adapt the connection structure to upper pipes of different specifications, achieving compatible use. Different sizes can be flexibly changed according to needs, making operation convenient. This structure effectively compensates for the lack of compatibility in existing products, adapting to the interface size differences of various upper pipes, thus reducing material loss and lowering production costs.

[0017] 3. During use, the sealing ring adopts a simple placement contact design, allowing for flexible replacement of different sizes as needed, making operation convenient. This simplifies the sealing ring replacement process, avoiding the cumbersome operations of frequent sealing ring replacements in traditional structures, and significantly improving ease of use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a schematic cross-sectional view of the top plate of this utility model;

[0020] Figure 3 This is an enlarged schematic diagram showing the outer shell, connecting block, and cam used in conjunction with this utility model;

[0021] Figure 4 This is an enlarged cross-sectional view of the top ring and outer shell of this utility model;

[0022] Figure 5 This is an exploded cross-sectional view of the top ring and outer shell of this utility model.

[0023] Figure 6 This is an enlarged schematic diagram of the connecting rod and cam working together in this utility model;

[0024] Figure 7 This is an exploded and enlarged schematic diagram of the connecting rod and cam working together in this utility model.

[0025] Figure label:

[0026] 1. Top plate; 101. Inner tube; 102. Outer tube; 103. Side block; 104. Threaded hole;

[0027] 2. Connecting block; 201. Connecting rod; 202. Housing; 203. Elastic element;

[0028] 3. Top ring;

[0029] 4. Connecting parts; 401. Rotating rod; 402. Supporting parts; 403. Cam;

[0030] 5. Shifting ring; 501. Handle;

[0031] 6. Contact components; 601. Contact layer;

[0032] 7. Moving block; 701. Screw; 702. Nut;

[0033] 8. Sealing ring. Detailed Implementation

[0034] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0036] Example:

[0037] refer to Figures 1-7 The leak-proof liquid dispensing connection structure includes a top plate 1, an inner tube 101 fixedly installed at the bottom of the top plate 1, an outer tube 102 sleeved on the outside of the inner tube 101, a symmetrical connecting block 2 on the top of the top plate 1, a connecting rod 201 fixedly installed on the top of the connecting block 2, a rotating rod 401 on the top of the connecting rod 201, and cams 403 fixedly sleeved at both ends of the rotating rod 401.

[0038] The bottom of the connecting block 2 extends through to the inside of the top plate 1 and is fixedly installed with a moving block 7. The inner side of the moving block 7 is threaded with a screw 701, and the top of the top plate 1 is in contact with a sealing ring 8.

[0039] Specifically, in actual operation, the operator only needs to adjust the handle 501 to the horizontal position. As the handle 501 rotates, the cam 403 moves and compresses the top ring 3, causing the housing 202 to drive the contact element 6 to tightly fit against the flange of the upper pipeline with the contact layer 601, and compressing the sealing ring 8. This innovative design makes the connection process of the liquid preparation pipeline extremely quick, and the installation and disassembly operations are simple and easy to learn, effectively reducing the impact of downtime maintenance on liquid preparation efficiency.

[0040] The outer sleeve 102 is fixedly connected to the bottom of the top plate 1. Symmetrical side blocks 103 are fixedly installed on the outer side of the outer sleeve 102. Threaded holes 104 are opened on the inner side of both the side blocks 103 and the outer sleeve 102. The outer sleeve 102 is sleeved on the outer side of the pipe to be fixed. Through the cooperation of the side blocks 103 and the threaded holes 104, the outer bolt will gradually extend from the outside of the outer sleeve 102 into the inside of the outer sleeve 102 and contact the external pipe as the threads of the external bolt are screwed in. At this time, the connection and fastening between the outer sleeve 102 and the external pipe will be achieved.

[0041] The connecting rod 201 is slidably sleeved on the surface of the connecting rod 201. The inner part of the outer shell 202 is provided with an elastic element 203 sleeved on the surface of the connecting rod 201. The two ends of the elastic element 203 are fixedly connected to the surface of the outer shell 202 and the surface of the connecting rod 201, respectively. The movement of the outer shell 202 will cause the elastic element 203 to undergo elastic deformation, and in the rebound extension of the elastic element 203, it will cooperate with the outer shell 202 to return to the initial position.

[0042] A top ring 3 is fixedly installed on the top of the housing 202, located on the surface of the connecting rod 201. The top ring 3 is in contact with the cam 403. A connecting piece 4 is fixedly installed on the top of the connecting rod 201. The rotation of the cam 403 will achieve the movement and compression of the top ring 3 at a specific angle through its center offset design. The top ring 3 drives the housing 202 to move synchronously.

[0043] The top of the connector 4 is fixedly equipped with symmetrical support members 402. The support members 402 and the rotating rod 401 are rotatably connected to each other. The connector 4 will be supported by the support members 402 and the rotating rod 401, and will rotate smoothly through the bearing.

[0044] A shift ring 5 is provided between the two support members 402 and is fixedly sleeved with the connecting rod 201. A handle 501 is fixedly installed on the outside of the shift ring 5. Adjusting the handle 501 will cause the shift ring 5 and the connecting rod 201 to rotate.

[0045] A contact element 6 is fixedly installed on the outside of the outer casing 202. A contact layer 601 is fixedly adhered to the bottom of the contact element 6. The movement of the outer casing 202 will cause the contact element 6 and the contact layer 601 to move. After the movement, the contact layer 601 will contact and abut against the top of the flange of the external pipe to be connected, thereby realizing the connection of the two pipes.

[0046] One end of the screw 701 is rotatably connected to the top plate 1 via a bearing, and the other end of the screw 701 is fixedly installed with a nut 702 embedded in the surface of the top plate 1. The rotation of the nut 702 will drive the screw 701 to rotate. The nut 702 being embedded in the surface of the top plate 1 will reduce the space occupied.

[0047] The working principle of this utility model is as follows: In actual operation, the operator holds the connecting structure and fits the outer sleeve 102 onto the outer surface of the lower pipe. At this time, the inner insert 101 will naturally be placed inside the lower pipe. Then, through the cooperation of the external bolt and the threaded hole 104, the outer sleeve 102 and the lower pipe can be quickly and securely installed. Subsequently, the flange of the upper pipe is moved laterally and placed at the bottom of the contact 6 and at the top of the sealing ring 8. At this time, the handle 501 is in a vertical state, and the operator only needs to adjust the handle 501 to a horizontal position. As the handle 501 rotates, the shift ring 5, the rotating rod 401, and the cam 403 will also rotate synchronously. Due to the offset design of the center of the cam 403, when it rotates to a specific angle, it can exert a moving compression on the top ring 3. The top ring 3 then drives the outer shell 202 to move synchronously, causing the elastic element 203 to rebound and contract. In this process, the outer shell 202 drives the contact 6 and the contact layer 601 to fit tightly against the flange of the upper pipe and compress the sealing ring 8.

[0048] In use, the operator only needs to rotate the nut 702, which will cause the two sets of moving blocks 7, the outer shell 202 and the contact parts 6 to move closer or further apart through the synchronous rotation of the screw 701, so that the connection structure can be adapted to upper pipes of different specifications and achieve compatible use. At the same time, the sealing ring 8 adopts a simple placement contact design, and different sizes can be flexibly replaced according to needs, making operation convenient.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof liquid dispensing connection structure, comprising a top plate (1), wherein an inner tube (101) is fixedly installed at the bottom of the top plate (1), and an outer tube (102) is sleeved on the outside of the inner tube (101), characterized in that: The top plate (1) is provided with symmetrical connecting blocks (2), and a connecting rod (201) is fixedly installed on the top of the connecting block (2). A rotating rod (401) is provided on the top of the connecting rod (201), and cams (403) are fixedly sleeved at both ends of the rotating rod (401). The bottom of the connecting block (2) extends through to the inside of the top plate (1) and a moving block (7) is fixedly installed thereon. The inner side of the moving block (7) is threaded with a screw (701), and the top of the top plate (1) is in contact with a sealing ring (8).

2. The leak-proof liquid dispensing connection structure according to claim 1, characterized in that: The outer tube (102) is fixedly connected to the bottom of the top plate (1). Symmetrical side blocks (103) are fixedly installed on the outer side of the outer tube (102). Threaded holes (104) that communicate with each other are opened on the inner side of both the side blocks (103) and the outer tube (102).

3. The leak-proof liquid dispensing connection structure according to claim 1, characterized in that: The connecting rod (201) is slidably sleeved with a housing (202). The housing (202) has an elastic element (203) sleeved on the surface of the connecting rod (201). The two ends of the elastic element (203) are fixedly connected to the surfaces of the housing (202) and the connecting rod (201), respectively.

4. The leak-proof liquid dispensing connection structure according to claim 3, characterized in that: A top ring (3) is fixedly installed on the top of the housing (202) on the surface of the connecting rod (201), the top ring (3) is in contact with the cam (403), and a connector (4) is fixedly installed on the top of the connecting rod (201).

5. The leak-proof liquid dispensing connection structure according to claim 4, characterized in that: The top of the connector (4) is fixedly equipped with mutually symmetrical support members (402), and the support members (402) and the rotating rod (401) are rotatably connected to each other.

6. The leak-proof liquid dispensing connection structure according to claim 5, characterized in that: A shift ring (5) is provided between the two support members (402) and is fixedly sleeved with the connecting rod (201). A handle (501) is fixedly installed on the outside of the shift ring (5).

7. The leak-proof liquid dispensing connection structure according to claim 3, characterized in that: A contact element (6) is fixedly installed on the outer side of the outer shell (202), and a contact layer (601) is fixedly adhered to the bottom of the contact element (6).

8. The leak-proof liquid dispensing connection structure according to claim 1, characterized in that: One end of the screw (701) is rotatably connected to the top plate (1) via a bearing, and the other end of the screw (701) is fixedly fitted with a nut (702) embedded in the surface of the top plate (1).

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