A rotatable combined middle injection tube

Abstract

The utility model discloses a rotatable combined type middle injection pipe relates to the field of middle injection pipe, and its technical scheme main points are: the fixed pipe body is equipped with the sealing structure with the rotatory pipe body, and the sealing structure is used for blocking the medium leakage of two pipe body cooperation gap, guarantees the sealed property of conveying, the bottom intercommunication of rotatory pipe body is connected with branch pipe, and the branch pipe is connected with second fluid passage, is used for the medium in the rotatory pipe body is shunted to a plurality of target liquid injection position, realizes multi -position synchronous liquid injection, still be installed with the rotation assembly structure between the fixed pipe body and rotatory pipe body, and the effect is when needing to adjust liquid injection direction to adapt the liquid injection target of different position, with the rotation assembly structure between the fixed pipe body and rotatory pipe body, makes rotatory pipe body flexible rotation around the axis of fixed pipe body, drives branch pipe synchronous change direction, and the direction adjustment can be completed without disassembling the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of injection tubes, and more specifically, it relates to a rotatable and modular injection tube. Background Technology

[0002] In the field of media transportation in industrial production, the injection pipe is an important component that connects the media source and the injection target, and is widely used in chemical reactions, equipment lubrication, material filling and other scenarios.

[0003] Most existing injection pipes are integrated fixed structures, and their output direction remains unchanged after being connected to external equipment. When it is necessary to deliver the medium to different injection targets, the pipeline needs to be disassembled and reinstalled. This is not only cumbersome and affects the continuity of production, but also prone to deterioration of the sealing performance of the connection parts due to repeated disassembly and reassembly, which can lead to media leakage. Although some injection pipes have branch structures to realize multi-station injection, the branch pipes are rigidly connected to the main body, and the direction cannot be adjusted, making it difficult to adapt to scenarios where the injection target position changes.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a rotatable combined injection tube. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotatable and modular injection tube.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotatable combined injection pipe, comprising a fixed pipe body and a rotating pipe body assembled together to achieve stable medium delivery, wherein the fixed pipe body is provided with a first fluid channel, one end of which is used to be fixedly connected to an external device to introduce the medium, and the other end is used to cooperate with the rotating pipe body; the rotating pipe body is provided with a second fluid channel communicating with the first fluid channel, which is used to receive the medium delivered by the fixed pipe body and guide it to the output.

[0007] A sealing structure is provided between the fixed tube and the rotating tube to prevent media leakage through the gap between the two tubes and ensure the sealing performance of the delivery. A branch pipe is interconnected at the bottom of the rotating tube and communicates with the second fluid channel to divert the media in the rotating tube to multiple target injection positions, thereby realizing synchronous injection at multiple stations. A rotating assembly structure is also installed between the fixed tube and the rotating tube to realize the assembly of the two and to realize the rotation of the rotating tube relative to the fixed tube, so that the rotating tube can rotate flexibly around the axis of the fixed tube to adjust the output direction of the branch pipe.

[0008] Preferably, the sealing structure includes multiple annular grooves formed on the top of the rotating tube and multiple annular protrusions integrally formed on the bottom of the fixed tube, and the annular protrusions are covered with a sealing rubber layer, forming a multi-layer seal from the inside to the outside when the annular protrusions are inserted into the annular grooves.

[0009] Preferably, the rotating assembly structure includes a connecting plate fixed to the outer wall of the fixed tube and an annular track fixed to the outer wall of the rotating tube by a horizontal plate. A slider is slidably connected on the annular track. A fixing block with a through hole is fixedly connected to the side end of the slider. A screw that can pass through the through hole is fixedly connected to the bottom end of the connecting plate, and a nut is fixedly connected to the outer wall of the screw.

[0010] Preferably, four connecting plates arranged in a circular array and with screws fixed at their bottom ends are fixed on the outer wall of the fixed tube body, and four sets of sliders and fixing blocks are also provided on the annular track.

[0011] Preferably, the sliders are connected by a connecting frame to form an integral structure.

[0012] Preferably, the side end of the connecting frame is fixedly connected to a handle that facilitates its rotation.

[0013] Preferably, there are two branch pipes, symmetrically distributed on the rotating pipe body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model introduces an external medium into a first fluid channel through the connection between one end of a fixed pipe and an external device. The medium then flows into a second fluid channel of the rotating pipe via the mating part of the fixed pipe and the rotating pipe. On one hand, the medium is directly guided to the output through the output end of the rotating pipe. On the other hand, it is diverted to multiple target injection positions through a branch pipe connected to the second fluid channel, achieving synchronous injection at multiple positions. When it is necessary to adjust the injection direction to adapt to different injection targets, the rotating assembly structure between the fixed pipe and the rotating pipe allows the rotating pipe to rotate flexibly around the axis of the fixed pipe after assembly, driving the branch pipe to change direction synchronously. Direction adjustment can be completed without disassembling the pipeline, thus solving the problems in the background art.

[0016] 2. In this utility model, the corresponding cooperation of the multi-layer annular protrusions and annular grooves forms multiple sealing barriers from the inside to the outside, constructing a layer-by-layer blocking path for media leakage; the multi-layer sealing design greatly improves the sealing reliability. Even if a certain seal is slightly worn due to long-term use, the remaining sealing layers can still maintain the sealing effect and avoid the risk of media leakage.

[0017] 3. This utility model adopts four connecting plates arranged in a circular array and four corresponding sets of sliders and fixing blocks, and connects the sliders into a whole through the connecting frame. This design makes the connection between the fixed tube and the rotating tube more uniform in terms of force. When tightening the nut, a balanced clamping force is formed from four mutually perpendicular directions, which effectively avoids the two tubes from becoming eccentric or tilted due to excessive local force. It ensures the precise fit between the annular protrusion and the annular groove, prevents the sealing rubber layer from being excessively squeezed or not sealing properly due to fit deviation, and improves the reliability of the sealing structure.

[0018] 4. This utility model provides a convenient and labor-saving force application point for the rotation operation of the rotating tube body by means of a handle. The operator can directly apply rotational force to the integral slider assembly by holding the handle, which makes the rotation operation more convenient. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged view of the local structure of A;

[0022] Figure 3 This is a schematic diagram of the fixed tube connection structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the rotating tube connection structure in this utility model;

[0024] Figure 5 This utility model Figure 4 Another perspective on the specific structure;

[0025] Figure 6 This is a schematic diagram of the fixing block connection structure in this utility model.

[0026] In the diagram: 1. Fixed pipe body;

[0027] 2. Rotate the tube body;

[0028] 3. Sealing structure; 301. Annular groove; 302. Annular protrusion;

[0029] 4. Rotating assembly structure; 401. Connecting plate; 402. Horizontal plate; 403. Circular track; 404. Slider; 405. Fixing block; 4051. Through hole; 406. Screw; 407. Connecting frame; 408. Handle; 5. Branch pipe. Detailed Implementation

[0030] like Figure 1-6 As shown, this utility model provides a rotatable combined injection pipe, including a fixed pipe body 1 and a rotating pipe body 2 that are assembled together to achieve stable medium delivery. The fixed pipe body 1 has a first fluid channel inside, one end of which is used to be fixedly connected to an external device to introduce the medium, and the other end is used to cooperate with the rotating pipe body 2. The rotating pipe body 2 has a second fluid channel inside that communicates with the first fluid channel, which is used to receive the medium delivered by the fixed pipe body 1 and guide it to the output.

[0031] A sealing structure 3 is provided between the fixed tube body 1 and the rotating tube body 2. This sealing structure 3 is used to block the leakage of the medium in the gap between the two tube bodies and ensure the sealing of the delivery. The bottom of the rotating tube body 2 is interconnected with a branch pipe 5, which is connected to the second fluid channel and is used to divert the medium in the rotating tube body 2 to multiple target injection positions (there are two branch pipes 5, which are symmetrically distributed on the rotating tube body 2) to realize multi-station synchronous injection. A rotating assembly structure 4 is also installed between the fixed tube body 1 and the rotating tube body 2 to realize the assembly of the two and realize the rotation of the rotating tube body 2 relative to the fixed tube body 1, so that the rotating tube body 2 can rotate flexibly around the axis of the fixed tube body 1 to adjust the output direction of the branch pipe 5.

[0032] In use, the external medium enters the first fluid channel through the connection end of the fixed pipe 1 to the external equipment, and flows into the second fluid channel of the rotating pipe 2 through the mating part of the fixed pipe 1 and the rotating pipe 2. On the one hand, it is directly guided to the output through the output end of the rotating pipe 2, and on the other hand, it is diverted to multiple target injection positions through the branch pipe 5 connected to the second fluid channel, realizing synchronous injection at multiple positions. When it is necessary to adjust the injection direction to adapt to different injection targets, the rotating assembly structure 4 between the fixed pipe 1 and the rotating pipe 2 can be used to make the rotating pipe 2 rotate flexibly around the axis of the fixed pipe 1 after the two are assembled, driving the branch pipe 5 to change direction synchronously. The direction adjustment can be completed without disassembling the pipeline. At the same time, the sealing structure 3 between the fixed pipe 1 and the rotating pipe 2 always blocks the mating gap during the relative rotation of the two pipes to prevent media leakage. Thus, while ensuring the sealing of the media delivery, it can realize the flexible adjustment of the injection direction and the coordinated operation of multi-position injection.

[0033] The specific structure of the sealing structure 3 is as follows: the sealing structure 3 includes multiple annular grooves 301 formed on the top of the rotating tube 2, and multiple annular protrusions 302 integrally formed on the bottom of the fixed tube 1, and the annular protrusions 302 are covered with a sealing rubber layer. When the annular protrusions 302 are inserted into the annular grooves 301, a multi-layer seal is formed from the inside to the outside.

[0034] During the assembly of the fixed tube 1 and the rotating tube 2, the annular protrusion 302 at the bottom of the fixed tube 1 is precisely inserted into the annular groove 301 at the top of the rotating tube 2. The sealing rubber layer covering the annular protrusion 302 undergoes elastic deformation due to the pressure from the inner wall of the annular groove 301. (The sealing rubber layer is preferably made of nitrile rubber, which has excellent elasticity and oil resistance. When compressed by the inner wall of the annular groove 301, it can quickly undergo elastic deformation to fill the gap. It also has good wear resistance and is suitable for conveying hydraulic oil, mechanical oil, and other oil-based or water-based media in conventional industrial applications.) In this scenario, it can not only fill the tiny gap between the annular protrusion 302 and the annular groove 301, but also adaptively adjust its shape according to the tiny displacement generated by the relative rotation of the two tubes, always maintaining a tight fit with the inner wall of the annular groove 301. At the same time, the corresponding cooperation of the multiple annular protrusions 302 and the annular groove 301 forms multiple sealing barriers from the inside to the outside, constructing a layer-by-layer blocking path for media leakage. The multi-layer sealing design greatly improves the sealing reliability. Even if a certain seal is slightly worn due to long-term use, the remaining sealing layers can still maintain the sealing effect and avoid the risk of media leakage.

[0035] The specific structure of the above-mentioned rotating assembly structure 4 is as follows: The rotating assembly structure 4 includes a connecting plate 401 fixed on the outer wall of the fixed tube 1, and an annular track 403 fixed on the outer wall of the rotating tube 2 by a horizontal plate 402. A slider 404 is slidably connected on the annular track 403. A fixing block 405 with a through hole 4051 is fixedly connected to the side end of the slider 404. A screw 406 that can pass through the through hole 4051 is fixedly connected to the bottom end of the connecting plate 401, and a nut is fixedly connected to the outer wall of the screw 406.

[0036] Align the annular protrusion 302 at the bottom of the fixed tube 1 with the annular groove 301 at the top of the rotating tube 2, and simultaneously align the screw 406 at the bottom of the connecting plate 401 with the through hole 4051 on the fixing block 405. Insert the screw 406 into the hole, causing the sealing rubber layer to be compressed and deformed to form a seal. Then, install a nut on the part of the screw 406 that protrudes from the fixing block 405. The nut moves along the screw 406 toward the fixing block 405, thereby fixing the connecting plate 401 and the fixing block 405, completing the assembly of the two. At the same time, the sliding cooperation between the slider 404 and the annular track 403 retains the function of the rotating tube 2 rotating around the axis of the fixed tube 1 (that is, when the rotating tube 2 rotates relative to the fixed tube 1, the slider 404 will slide relative to the annular track 403). Conversely, remove the nut, pull the annular protrusion 302 out of the annular groove 301, and pull the screw 406 off the fixing block 405 to achieve the disassembly of the fixed tube 1 and the rotating tube 2. The disassembly and assembly are relatively convenient.

[0037] Furthermore, four connecting plates 401 arranged in a circular array and with screws 406 fixed at the bottom are fixed on the outer wall of the fixed tube 1. The sliders 404 and fixing blocks 405 on the annular track 403 are also equipped with four sets accordingly. The sliders 404 are connected by connecting frames 407 to form an integral structure.

[0038] The above-mentioned design, which uses four connecting plates 401 arranged in a circular array and four corresponding sets of sliders 404 and fixing blocks 405, and connects the sliders 404 into a whole through the connecting frame 407, has the following advantages: First, the circular array distribution can make the connection force between the fixed tube 1 and the rotating tube 2 more uniform. When tightening the nut, a balanced clamping force is formed from four mutually perpendicular directions, which effectively avoids the two tubes from becoming eccentric or tilted due to excessive local force. This ensures the precise fit between the annular protrusion 302 and the annular groove 301, prevents the sealing rubber layer from being excessively squeezed or not sealing properly due to misfitting, and improves the reliability of the sealing structure 3. Second, the integral slider 404 assembly formed by the four sets of corresponding structures and the connecting frame 407 can ensure that all sliders 404 slide synchronously along the annular track 403 when the rotating tube 2 rotates, avoiding the jamming, offset or disengagement of a single slider 404, making the rotation process smoother and reducing rotational resistance and component wear.

[0039] Furthermore, a handle 408 is fixedly connected to the side end of the connecting frame 407 to facilitate its rotation. The handle 408 provides a convenient and effortless point of force application for the rotation operation of the rotating tube 2: the operator can directly apply rotational force to the integral slider 404 assembly by holding the handle 408, which makes the rotation operation more convenient.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A rotatable modular middle cannula, characterized by: It includes a fixed tube (1) and a rotating tube (2) assembled together to achieve stable medium delivery. The fixed tube (1) has a first fluid channel inside, one end of which is used to be fixedly connected to an external device to introduce the medium, and the other end is used to cooperate with the rotating tube (2). The rotating tube (2) has a second fluid channel inside which is connected to the first fluid channel, used to receive the medium delivered by the fixed tube (1) and guide it to the output. A sealing structure (3) is provided between the fixed tube (1) and the rotating tube (2). The sealing structure (3) is used to block the leakage of the medium in the gap between the two tubes and ensure the sealing of the conveying. A branch pipe (5) is interconnected at the bottom of the rotating tube (2). The branch pipe (5) is connected to the second fluid channel and is used to divert the medium in the rotating tube (2) to multiple target injection positions to realize multi-station synchronous injection. A rotating assembly structure (4) is also installed between the fixed tube (1) and the rotating tube (2) to realize the assembly of the two and realize the rotation of the rotating tube (2) relative to the fixed tube (1), so that the rotating tube (2) can rotate flexibly around the axis of the fixed tube (1) to adjust the output direction of the branch pipe (5).

2. A rotatable modular spout according to claim 1, wherein: The sealing structure (3) includes multiple annular grooves (301) formed on the top of the rotating tube (2) and multiple annular protrusions (302) integrally formed on the bottom of the fixed tube (1). The annular protrusions (302) are covered with a sealing rubber layer. When the annular protrusions (302) are inserted into the annular grooves (301), a multi-layer seal is formed from the inside to the outside.

3. A rotatable modular cannula according to claim 1, wherein: The rotating assembly structure (4) includes a connecting plate (401) fixed on the outer wall of the fixed tube (1) and an annular track (403) fixed on the outer wall of the rotating tube (2) by a horizontal plate (402). A slider (404) is slidably connected on the annular track (403). A fixing block (405) with a through hole (4051) is fixedly connected to the side end of the slider (404). A screw (406) that can pass through the through hole (4051) is fixedly connected to the bottom end of the connecting plate (401), and a nut is fixedly connected to the outer wall of the screw (406).

4. A rotatable modular cannula according to claim 3, wherein: The outer wall of the fixed tube (1) is fixed with four connecting plates (401) arranged in a circular array and with screws (406) fixed at the bottom. The sliders (404) and fixing blocks (405) on the ring track (403) are also equipped with four sets of corresponding combinations.

5. A rotatable, modular injection tube according to claim 4, characterized in that: The sliders (404) are connected by a connecting bracket (407) to form an integral structure.

6. A rotatable, modular injection tube according to claim 5, characterized in that: The side end of the connecting frame (407) is fixedly connected to a handle (408) that facilitates its rotation.

7. A rotatable, modular injection tube according to claim 1, characterized in that: The number of branch pipes (5) is two, symmetrically distributed on the rotating pipe body (2).

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