Anti-backflow pagoda head

Abstract

The utility model relates to the field of pagoda heads, in particular to an anti-backflow pagoda head which comprises a pagoda head body. And the auxiliary anti-backflow assembly is mounted in the pagoda joint and is used for assisting in resisting backflow. According to the anti-backflow pagoda head, due to the arrangement of the inner cavity and the anti-backflow mechanism, conveyed media can be effectively prevented from flowing back, the four sets of elastic pieces are installed in the pagoda head, when the flowing direction of the media is consistent with the bending direction of the elastic pieces, certain pressure can be generated in the flowing process of the media, and therefore the media are prevented from flowing back. When the flowing direction of the medium is opposite to the bending deformation direction of the elastic pieces, the medium enters the space between the elastic pieces and the inner cavity, the elastic pieces extrude one another due to the pressure of the medium borne by the elastic pieces, and therefore the elastic pieces are separated from the inner cavity. And the abutting strength between the elastic sheets is enhanced, so that a medium cannot pass through the elastic sheets.

Description

Technical Field

[0001] This utility model relates to the field of pagoda heads, specifically to a pagoda head with anti-backflow properties. Background Technology

[0002] Pagoda connectors can be classified into copper and stainless steel according to their material. They are mostly used for quick connection of hydraulic oil circuits and pneumatic pipelines. They are generally divided into two types: pagoda male plugs and pagoda female plugs. They are suitable for occasions where oil, water and air are used as media. They are easy to install and remove and have reliable performance.

[0003] A search revealed a utility model of a pagoda-type connector with publication number CN212389820U. The connector includes a connector body with a through-flow channel inside. An annular shoulder is provided circumferentially on the outer surface of the connector body. A first pagoda connector is located at one end of the connector body on one side of the annular shoulder, with a first through hole in the center. A second pagoda connector is located at the other end of the connector body on the other side of the annular limiting portion, with a second through hole in the center. The first through hole, the flow channel, and the second through hole are sequentially connected. The taper direction of the first pagoda connector is opposite to that of the second pagoda connector. An annular protrusion is provided circumferentially at the end of either the first or second through hole away from the annular shoulder, with a cross-section of an R-angle arc. This utility model, by setting an annular protrusion with an R-angle arc cross-section, allows the pagoda-type connector to change the surface contact with the sealing ring to a line contact. Under the same pressure, the pressure of the linear surface is greater, resulting in a better sealing effect.

[0004] Most existing pagoda joints lack anti-backflow features when conveying oil or water, which can easily lead to the diversion of oil or water, thus affecting the conveying effect. The pagoda joint in the above comparative case also lacks anti-backflow features, which can easily cause backflow during the conveying process, thereby affecting the normal operation of the connected pipeline system, and may also damage upstream equipment, reducing the performance and efficiency of the entire system.

[0005] Therefore, it is necessary to invent a pagoda head that resists backflow to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a pagoda-shaped connector with anti-backflow design. Four sets of elastic plates are installed inside the pagoda connector. When the flow direction of the medium is consistent with the bending direction of the elastic plates, a certain pressure is generated during the medium flow. This pressure pushes the four sets of elastic plates to unfold, creating gaps between them, through which the medium flows. When the flow direction of the medium is opposite to the bending deformation direction of the elastic plates, the medium enters between the elastic plates and the inner cavity. The pressure of the medium on the elastic plates causes them to press against each other, enhancing the contact strength between them and preventing the medium from passing through. This solves the problem raised in the comparative case in the background art, which lacks anti-backflow design, easily causing backflow during medium transport, thus affecting the normal operation of the connected pipeline system, potentially damaging upstream equipment, and reducing the performance and efficiency of the entire system.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pagoda-shaped head with anti-backflow capability, comprising a pagoda connector;

[0008] An auxiliary anti-backflow component is installed inside the pagoda connector to assist in preventing backflow. A nut is fixedly connected to the bottom of the pagoda connector, and a threaded connecting sleeve is fixedly connected to the bottom of the nut. An inner cavity is opened inside the pagoda connector, and fixed seats are fixedly installed on both sides of the outside of the pagoda connector.

[0009] Anti-backflow mechanism, installed inside the cavity, is used to prevent backflow;

[0010] The fixing components are installed on both sides of the fixing base for connection and fixation.

[0011] Preferably, the auxiliary anti-backflow component includes a threaded groove, which is formed above the pagoda connector. A connector is installed above the pagoda connector, and an external thread is formed below the connector. Connecting rods are fixedly connected to both sides below the connector, and a first filter screen and a second filter screen are installed inside the connecting rods.

[0012] Preferably, the connector is threaded to the pagoda connector via an external thread, and the external dimensions of the first and second filter screens match the internal dimensions of the pagoda connector.

[0013] Preferably, the anti-backflow mechanism includes an elastic sheet, which is installed inside the pagoda connector. The elastic sheet has a pointed tip on one side and a rear end below it.

[0014] Preferably, the elastic sheet is provided in four sets, and the four sets of elastic sheets have the same size.

[0015] Preferably, the fixing component includes a connecting block, which is installed on one side of the fixing base. A pressing element is fixedly installed on one side of the connecting block, and a clamping block is fixedly connected to one side of the pressing element. The internal surface of the clamping block is provided with teeth.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] The internal cavity and anti-backflow mechanism effectively prevent backflow of the transported medium. Four sets of elastic plates are installed inside the pagoda joint. When the flow direction of the medium is consistent with the bending direction of the elastic plates, a certain pressure is generated during the flow of the medium. The pressure of the medium will push the four sets of elastic plates to unfold, creating gaps between the four sets of elastic plates. The medium flows through the gaps. When the flow direction of the medium is opposite to the bending deformation direction of the elastic plates, the medium enters between the elastic plates and the internal cavity. The pressure of the medium on the elastic plates causes multiple elastic plates to squeeze each other, enhancing the contact strength between the elastic plates and preventing the medium from passing through between the elastic plates.

[0018] By setting up auxiliary anti-backflow components, the anti-backflow mechanism can be assisted in preventing backflow. The first and second filters are installed inside the pagoda connector and placed in front of the anti-backflow mechanism. Combined with the anti-backflow mechanism, it can not only filter impurities in the medium, but also play a certain role in preventing backflow when the medium flows backward. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

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

[0021] Figure 2 This is a schematic diagram of the internal structure of the pagoda connector of this utility model;

[0022] Figure 3 This is a schematic diagram of the auxiliary anti-backflow component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-backflow mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the pagoda connector structure of this utility model;

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

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Pagoda connector; 2. Nut; 3. Threaded connecting sleeve; 4. Auxiliary anti-backflow component; 401. Threaded groove; 402. Connector; 403. External thread; 404. Connecting rod; 405. First filter screen; 406. Second filter screen; 5. Inner cavity; 6. Anti-backflow mechanism; 601. Elastic sheet; 602. Tip; 603. Rear end; 7. Fixing base; 8. Fixing component; 801. Connecting block; 802. Pressing piece; 803. Clamping block; 804. Toothed pattern. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-6 The diagram shows an anti-backflow pagoda head, including a pagoda connector 1;

[0030] The auxiliary anti-backflow component 4 is installed inside the pagoda connector 1 to assist in anti-backflow. A nut 2 is fixedly connected to the bottom of the pagoda connector 1, and a threaded connecting sleeve 3 is fixedly connected to the bottom of the nut 2. An inner cavity 5 is opened inside the pagoda connector 1, and a fixing seat 7 is fixedly installed on both sides of the outside of the pagoda connector 1.

[0031] Anti-backflow mechanism 6 is installed inside the inner cavity 5 to prevent backflow;

[0032] The fixing component 8 is installed on both sides of the fixing base 7 for connection and fixation. It is installed inside the pagoda connector 1 by four sets of elastic plates 601. When the direction of medium flow is consistent with the bending direction of elastic plates 601, a certain pressure will be generated during the medium flow. The pressure of the medium flow will push the four sets of elastic plates 601 to unfold, so that gaps are created between the four sets of elastic plates 601. The medium flows through the gaps. When the direction of medium flow is opposite to the bending deformation direction of elastic plates 601, the medium enters between elastic plates 601 and inner cavity 5. The pressure of the medium on elastic plates 601 causes multiple elastic plates 601 to squeeze each other, which enhances the contact strength between elastic plates 601 and prevents the medium from passing through between elastic plates 601.

[0033] like Figure 1 , Figure 2 and Figure 3As shown, the auxiliary anti-backflow component 4 includes a threaded groove 401, which is located above the pagoda connector 1. A connector 402 is installed above the pagoda connector 1, and an external thread 403 is provided below the connector 402. Connecting rods 404 are fixedly connected to both sides below the connector 402. A first filter screen 405 and a second filter screen 406 are installed inside the connecting rods 404. By first placing the first filter screen 405 and the second filter screen 406 inside the pagoda connector 1, and then using the external thread 403 below the connector 402 to align with the threaded groove 401 on the pagoda connector 1 and screwing it, the first filter screen 405 and the second filter screen 406 can be easily removed.

[0034] like Figure 3 As shown, connector 402 is threadedly connected to pagoda connector 1 via external thread 403. The external dimensions of first filter screen 405 and second filter screen 406 match the internal dimensions of pagoda connector 1. First filter screen 405 and second filter screen 406 not only perform filtering function, but also play a certain role in preventing backflow.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the anti-backflow mechanism 6 includes an elastic sheet 601, which is installed inside the pagoda connector 1. A tip 602 is provided on one side of the elastic sheet 601, and a rear end 603 is provided below the elastic sheet 601. The medium enters the rear end 603 of the elastic sheet 601 and pushes the tip 602 of the elastic sheet 601 to create a gap, thereby allowing the medium to flow through the gap.

[0036] like Figure 4 As shown, there are four sets of elastic sheets 601. The four sets of elastic sheets 601 are of the same size and have a certain degree of elasticity. When combined together, they can improve the overall resistance to backflow.

[0037] like Figure 1 , Figure 5 and Figure 6 As shown, the fixing component 8 includes a connecting block 801, which is installed on one side of the fixing base 7. A pressing component 802 is fixedly installed on one side of the connecting block 801, and a clamping block 803 is fixedly connected to one side of the pressing component 802. The inner surface of the clamping block 803 is provided with teeth 804. When the guide tube is sleeved on the outside of the pagoda connector 1, the pressing component 802 and the clamping block 803 can compact the outside of the guide tube. The teeth 804 on the outside of the clamping block 803 increase the contact friction, thereby strengthening the firmness of the guide tube.

[0038] The working principle of this utility model is as follows: First, insert the first filter screen 405, the second filter screen 406, and the connecting rod 404 into the pagoda connector 1. Then, align the external thread 403 below the connector 402 with the threaded groove 401 on the pagoda connector 1 and tighten it, so that the first filter screen 405 and the second filter screen 406 are installed inside the pagoda connector 1. Next, thread the threaded connecting sleeve 3 below the pagoda connector 1 onto the connecting pipe of the equipment that needs to convey the medium. Then, put the guide tube on the pagoda connector 1, so that the guide tube is fitted above the nut 2. At this time, the pressing piece 802 and the clamping block 803 press firmly on the outside of the guide tube, strengthening the connection between the guide tube and the pagoda connector 1. The teeth 804 on the outside of the clamping block 803 increase the contact friction, thereby strengthening the firmness of the guide tube. Then, the medium can be conveyed. The medium flows in the same direction as the elastic sheet 601 bends. During the flow of the medium, a certain pressure is generated, which pushes the four sets of elastic sheets 601 to unfold, creating gaps between them. The medium flows through these gaps. When the flow direction of the medium is opposite to the bending deformation direction of the elastic sheet 601, it will preferentially contact the first filter screen 405 and the second filter screen 406. This not only effectively filters the medium but also provides some anti-backflow properties. The filtered medium enters between the elastic sheet 601 and the inner cavity 5. The pressure of the medium on the elastic sheet 601 causes the multiple elastic sheets 601 to squeeze against each other, increasing the contact strength between them and preventing the medium from passing through the gaps between the elastic sheets 601. This completes the use of the anti-backflow pagoda head.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pagoda-shaped head with anti-backflow capability, characterized in that: Including the pagoda connector (1); An auxiliary anti-backflow component (4) is installed inside the pagoda connector (1) to assist in anti-backflow. A nut (2) is fixedly connected to the bottom of the pagoda connector (1), and a threaded connecting sleeve (3) is fixedly connected to the bottom of the nut (2). An inner cavity (5) is opened inside the pagoda connector (1), and a fixing seat (7) is fixedly installed on both sides of the outside of the pagoda connector (1). Anti-backflow mechanism (6) is installed inside the inner cavity (5) to prevent backflow; The fixing component (8) is installed on both sides of the fixing base (7) for connection and fixing.

2. The anti-backflow pagoda head according to claim 1, characterized in that: The auxiliary anti-backflow component (4) includes a threaded groove (401), which is located above the pagoda connector (1). A connector (402) is installed above the pagoda connector (1). An external thread (403) is provided below the connector (402). Connecting rods (404) are fixedly connected to the lower sides of the connector (402). A first filter screen (405) and a second filter screen (406) are installed inside the connecting rods (404).

3. The anti-backflow pagoda head according to claim 2, characterized in that: The connector (402) is threaded to the pagoda connector (1) via an external thread (403), and the external dimensions of the first filter screen (405) and the second filter screen (406) match the internal dimensions of the pagoda connector (1).

4. The anti-backflow pagoda head according to claim 1, characterized in that: The anti-backflow mechanism (6) includes an elastic sheet (601), which is installed inside the pagoda connector (1). A tip (602) is provided on one side of the elastic sheet (601), and a rear end (603) is provided below the elastic sheet (601).

5. A pagoda-shaped head for preventing backflow according to claim 4, characterized in that: The elastic sheet (601) is provided in four sets, and the four sets of elastic sheets (601) are of the same size.

6. The anti-backflow pagoda head according to claim 1, characterized in that: The fixing component (8) includes a connecting block (801), which is installed on one side of the fixing base (7). A pressing component (802) is fixedly installed on one side of the connecting block (801), and a clamping block (803) is fixedly connected to one side of the pressing component (802). The inner surface of the clamping block (803) is provided with teeth (804).

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