Quickly replaceable turnover type blanking tee pipe

Abstract

The utility model belongs to material conveying field, a quick replacement turnover edition formula unloading tee pipe, the utility model discloses a box body, detachable connecting seat, flap and flap axle, the top of box body has a feed inlet, and the bottom of box body left and right sides has two discharge ports respectively, and the bottom of box body two discharge ports between processing has a U groove structure, detachable connecting seat installs on the U groove structure, and the flap is fixedly installed on detachable connecting seat through the flap axle, and the flap is placed in the inside of box body. The utility model research and development purpose is to solve the tee unloading pipe structure in prior art, and its flap replacement process generally exists the problem of low maintenance efficiency, high safety risk, big maintenance cost, when the flap needs replacement when wearing, need not destructive cutting or troublesome internal welding operation, only need to dismount a few connecting bolts and driving pin shaft, can whole flap assembly as an independent module from the U groove of the bottom of box body whole body is unloaded and is replaced, guarantees the continuous stable operation of production line.

Description

Technical Field

[0001] This utility model relates to a quick-change flip-type material feeding tee, belonging to the field of material conveying. Background Technology

[0002] In material conveying systems, the three-way discharge pipe is a key device for material diversion or reversal. It contains a rotatable flap that guides material from the upper inlet to different outlets by controlling the flap's angle. Because the conveyed materials (such as ores and sand) typically have high hardness and high impact resistance, the flap and the inner wall of the three-way pipe are subjected to intense friction and impact over long periods, making them prone to localized wear, deformation, and even failure. This can lead to problems such as material leakage and jamming, necessitating periodic shutdowns for inspection or replacement.

[0003] Currently, most mainstream tee discharge pipes in the industry adopt an "integrated design with the flap and pipe body embedded in one piece." This means the flap is directly and rigidly connected to the inside of the tee pipe body via pins, positioning sleeves, and other components. The edge of the flap must fit tightly against the inner wall of the pipe to prevent leakage. While this traditional structure is feasible in fulfilling basic flow diversion functions, it has significant drawbacks in the replacement and maintenance process after the flap wears out. Specifically, this manifests in the following three replacement methods and their disadvantages:

[0004] 1. Partial patching and replacement of worn parts: This method involves cutting and welding reinforcing wear-resistant material to only the worn areas. This requires work inside a narrow tee pipe, constituting confined space work and posing significant safety hazards. Furthermore, the limited operating space makes welding difficult and quality control challenging, often resulting in short-lived parts and potential equipment malfunctions.

[0005] 2. Replacement of the flap body: The entire flap needs to be removed from inside the tee pipe. Due to the limitations of the original embedded assembly structure, the pins, positioning sleeves, and other components connecting the flap are often rusted or deformed after long-term use. Disassembly usually requires destructive cutting using gas welding, which is labor-intensive and time-consuming. In addition, the inner wall of the tee pipe has undergone uneven wear after long-term use. Even if a new flap is installed, it is very easy for jamming or material leakage to occur due to poor fit, and the quality of maintenance cannot be guaranteed.

[0006] 3. Replacement of the entire tee pipe: Replacing the entire tee pipe due to partial damage. This method not only requires the removal of the connected upper and lower pipe sections, which is extremely inconvenient in installation spaces and leads to a significant increase in maintenance time; more importantly, it creates a situation of "replacing a small problem with a large one," greatly increasing equipment maintenance and spare parts procurement costs.

[0007] In summary, the existing three-way feed pipe structure generally suffers from three major problems in the flap replacement process: low maintenance efficiency, high safety risks, and high maintenance costs.

[0008] Therefore, there is an urgent need to propose a quick-change flip-type feeding tee to solve the above-mentioned technical problems. Utility Model Content

[0009] The purpose of this invention is to address the problems of low maintenance efficiency, high safety risks, and high maintenance costs in the existing three-way feed pipe structure, particularly during the flap replacement process. A brief overview of this invention is provided below to offer a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit its scope.

[0010] The technical solution of this utility model:

[0011] A quick-change flip-type feeding tee includes a housing, a detachable connecting seat, a flip plate, and a flip plate shaft. The top of the housing has a feeding port, and the left and right sides of the bottom of the housing each have two feeding ports. A U-shaped groove structure is machined between the two feeding ports at the bottom of the housing. The detachable connecting seat is installed on the U-shaped groove structure, and the flip plate is fixedly installed on the detachable connecting seat through the flip plate shaft. The flip plate is placed inside the housing.

[0012] Preferably, the flap shaft extends through a detachable connecting seat on one side and is then fixedly connected to the connecting rod.

[0013] Preferably, the detachable connecting seat includes a front plate, a rear plate, and a partition plate. The front plate and the rear plate are connected by the partition plate, and the front plate and the rear plate are respectively installed on the front and rear sides of the U-shaped groove structure by bolts.

[0014] Preferably, the two ends of the flap shaft are supported on the front plate and the rear plate respectively by bearings.

[0015] Preferably, the contact edge between the flap and the inner wall of the box is provided with a sealing structure.

[0016] Preferably, the sealing structure is a detachable wear-resistant rubber plate or a metal sealing strip.

[0017] Preferably, the flap is made of wear-resistant steel plate, and / or its facing surface is overlaid with a wear-resistant layer.

[0018] Preferably, the connecting rod is connected to an external driving device, which is a cylinder, a hydraulic cylinder, or an electric push rod.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model optimizes the traditional "integrated flap and tube" structure into a "separate flap assembly and housing" structure. When the flap needs to be replaced due to wear, no destructive cutting or cumbersome internal welding is required. Only a few connecting bolts and drive pins need to be removed, and the entire flap assembly can be removed as an independent module from the U-shaped groove at the bottom of the housing for replacement. This reduces maintenance work that might have taken several hours or even longer to within tens of minutes, greatly reducing equipment downtime and ensuring the continuous and stable operation of the production line.

[0021] 2. This utility model enables the rapid disassembly of the entire flap assembly, eliminating the need for maintenance personnel to enter the narrow, enclosed space for high-risk "confined space operations," fundamentally eliminating safety risks such as suffocation, poisoning, and entrapment that may occur in such environments. Simultaneously, it avoids the potential fire and explosion hazards associated with hot work operations such as gas welding and cutting inside the enclosure, making its safety benefits particularly prominent in special working conditions such as gas areas and flammable and explosive locations.

[0022] 3. This utility model adopts a modular flip-plate kit design with a detachable connecting seat, flip plate, and flip plate shaft. Enterprises no longer need to stock expensive and bulky entire tee pipe assemblies as spare parts; they only need to stock simple, easy-to-manufacture (or even self-manufactured) flip-plate kits. This significantly reduces the procurement and storage costs of spare parts. It achieves precise repair by "replacing only the damaged part," avoiding the "minor damage, major replacement" phenomenon of the traditional method where localized wear leads to the scrapping of the entire tee pipe. The maintenance costs throughout the equipment's lifecycle are effectively controlled.

[0023] 4. The detachable connecting base of this utility model serves as an independent installation benchmark, ensuring that precision components such as the flap shaft and bearings are always in accurate relative positions. During replacement, the new flap assembly, as a pre-installed and adjusted integrated module, has its own fitting precision guaranteed. After installation, it can restore the initial design state, effectively avoiding problems such as flap jamming or poor sealing caused by uneven wear of the inner wall of the housing. This ensures consistent and reliable maintenance quality after each replacement.

[0024] 5. This utility model, through the design of a U-shaped groove, a detachable connecting seat, and bearing support, ensures stable installation and flexible rotation of the flap. The flap is made of wear-resistant material and can be optionally equipped with a wear-resistant overlay weld, as well as a detachable wear-resistant sealing strip, which together extend the service life of the core vulnerable parts and ensure the sealing of the diversion position, effectively preventing material leakage. Attached Figure Description

[0025] Figure 1 This is a structural diagram of a quick-change flip-type feeding tee pipe;

[0026] Figure 2It is a diagram showing the assembly of the detachable connector and the connecting rod;

[0027] Figure 3 This is a structural diagram of the box;

[0028] Figure 4 This is a diagram showing the installation of the detachable connecting seat and the flap shaft.

[0029] Figure 5 This is a structural diagram of the detachable connector.

[0030] In the diagram, 1-box body, 2-detachable connecting seat, 3-flip plate, 4-flip plate shaft, 5-feed inlet, 6-discharge outlet, 7-U-shaped groove structure, 8-connecting rod, 21-front plate, 22-rear plate, 23-partition plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0032] The connections mentioned in this utility model are divided into fixed connections and detachable connections. Fixed connections (i.e., non-detachable connections) include, but are not limited to, conventional fixed connection methods such as folded connections, riveted connections, adhesive connections, and welded connections. Detachable connections include, but are not limited to, conventional disassembly methods such as threaded connections, snap-fit ​​connections, pin connections, and hinged connections. When a specific connection method is not explicitly defined, it is assumed that at least one existing connection method can always be found to achieve the function, and those skilled in the art can choose according to their needs. For example, a welded connection can be chosen for fixed connections, and a hinged connection can be chosen for detachable connections.

[0033] Specific implementation method one: Combining Figures 1-5 This embodiment describes a quick-change flip-type material feeding tee pipe, comprising a housing 1, a detachable connecting seat 2, a flip plate 3, and a flip plate shaft 4. The housing 1 serves as the main channel for material flow, with an inlet 5 at its top for receiving upstream materials. The bottom of the housing 1 has outlets 6 on its left and right sides, namely a first outlet and a second outlet, for guiding materials to different downstream devices. To achieve modular and quick assembly / disassembly, a U-shaped groove structure 7 is machined at the center between the two outlets 6 at the bottom of the housing 1, running through the front and rear sides of the housing. This U-shaped groove serves as the installation and disassembly channel for the flip plate assembly.

[0034] The detachable connecting seat 2 is a key connecting component in this embodiment, and it is fixedly installed on the U-shaped groove structure 7 of the housing 1 by bolts. Specifically, the detachable connecting seat 2 is formed by welding or bolting a front plate 21, a rear plate 22, and a partition plate 23 connecting the two, forming a stable frame structure. The front plate 21 and the rear plate 22 are fastened to the front and rear sides of the U-shaped groove structure 7 by high-strength bolts, thereby firmly suspending the entire connecting seat on the housing.

[0035] The partition plate 23, together with the front plate 21 and the rear plate 22, forms a rigid mounting frame that ensures the coaxiality of the flap shaft 4, solving the problems of poor installation accuracy and weak rigidity of the separate installation; it also serves as a mechanical limit and diversion guide ridge when the flap 3 rotates inside the housing 1.

[0036] When the flap 3 rotates to a certain discharge port 6, the structure of the partition plate 23 can fit tightly with the edge of the flap 3 to form a smooth and continuous guide channel, effectively guiding the material flow and reducing material turbulence, impact and dust. Thus, while ensuring rapid replacement, it also optimizes and stabilizes the core diversion effect.

[0037] The flap shaft 4 is supported at both ends by bearings 9 on the front plate 21 and rear plate 22 of the detachable connecting seat 2, respectively. The bearings 9 are preferably self-lubricating wear-resistant bushings or rolling bearings. One side of the flap shaft 4 extends through the detachable connecting seat 2 and is fixedly connected to a connecting rod 8 by means of key connection or welding. The connecting rod 8 is then connected to an external drive device 11 via a pin to provide power for the rotation of the flap. The drive device 11 is such as a cylinder, hydraulic cylinder, or electric push rod.

[0038] The flap 3 is fixedly mounted on the flap shaft 4 and rotates together with the flap shaft. The flap 3 is located inside the housing 1, and its shape matches the inner cavity of the housing. To ensure durability, the flap 3 is made of wear-resistant steel plate, and a wear-resistant layer such as chromium carbide is welded onto its surface facing material impact to extend its service life several times over. To prevent material leakage, a sealing structure is provided at the contact edge between the flap 3 and the inner wall of the housing 1. This sealing structure is preferably a detachable wear-resistant rubber plate or metal sealing strip, which is fixed to the edge of the flap by a pressure plate or bolts and can be replaced individually after wear.

[0039] At this point, the flap 3, flap shaft 4, bearing 9, and detachable connecting seat 2 together constitute an independent, pre-assembled flap kit module. This forms the basis for enabling quick replacement.

[0040] During normal operation, the external drive device 11 drives the flap shaft 4 and the flap 3 fixed thereon to rotate inside the housing 1 by pushing or pulling the connecting rod 8.

[0041] When the drive unit pushes the connecting rod 8 to bring the flap 3 to the left extreme position, the material falling from the feed port 5 is guided by the flap 3 to the discharge port 6 on the right.

[0042] When the drive device pulls the connecting rod 8 to bring the flap 3 to the right limit position, the material is guided to the discharge port 6 on the left.

[0043] By controlling the angle of the flap 3, the material can be switched and diverted between the left and right discharge ports 6.

[0044] When flip panel 3 needs to be replaced due to wear and tear from long-term use, the operating procedure is as follows:

[0045] S1. Preparation: Shut down the equipment and ensure safety. Hang a hand chain hoist at a suitable position on the box 1 above the flip-plate kit module.

[0046] S2. Disconnect drive: Remove the connecting rod 8 from the drive unit pin to disconnect the flap assembly module from the power source.

[0047] S3. Release the lower fixing: Remove all bolts connecting the front plate 21 and rear plate 22 of the detachable connecting seat 2 to the U-shaped groove structure 7 of the box. At this time, the entire flip-plate assembly module is temporarily stored in the bearing seat by the upper flip-plate shaft 4 and is supported by the hand chain hoist.

[0048] S4. Disassemble the old module: Operate the hand chain hoist to lift the entire old flip plate kit module (including flip plate 3, flip plate shaft 4, bearing, and detachable connecting seat 2) downwards from the U-shaped groove structure 7.

[0049] S5. Install the new module: Lift the pre-assembled and debugged new flip plate kit module and install it from the bottom of the U-shaped groove structure 7 upwards, ensuring that both ends of the flip plate shaft 4 fall accurately into the bearings of the front and rear plates, and adjust the flip plate 3 to the correct installation angle.

[0050] S6. Tightening and Restoration: Re-tighten the detachable connecting seat 2 to the U-shaped groove structure 7 of the housing with bolts. Reinstall the connecting pin between the connecting rod 8 and the drive unit.

[0051] S7. Completion: Remove auxiliary tools such as the hand chain hoist and clean the site to resume production.

[0052] The entire replacement process requires no personnel to enter the enclosure, and no gas welding or cutting operations are required. It is safe, efficient, and can usually be completed in a very short time, minimizing production losses.

[0053] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, this utility model will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by this utility model.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change flip-type feeding tee pipe, characterized in that: The box includes a housing (1), a detachable connecting seat (2), a flap (3) and a flap shaft (4). The top of the housing (1) has a feed inlet (5), and the bottom of the housing (1) has two discharge outlets (6) on the left and right sides respectively. A U-shaped groove structure (7) is machined between the two discharge outlets (6) at the bottom of the housing (1). The detachable connecting seat (2) is installed on the U-shaped groove structure (7). The flap (3) is fixedly installed on the detachable connecting seat (2) through the flap shaft (4). The flap (3) is placed inside the housing (1).

2. The quick-change flip-type feeding tee pipe according to claim 1, characterized in that: The flap shaft (4) extends through the detachable connecting seat (2) on one side and is then fixedly connected to the connecting rod (8).

3. The quick-change knock-down tee of claim 1, wherein: The detachable connecting seat (2) includes a front plate (21), a rear plate (22) and a partition plate (23). The front plate (21) and the rear plate (22) are connected by the partition plate (23). The front plate (21) and the rear plate (22) are respectively installed on the front and rear sides of the U-shaped groove structure (7) by bolts.

4. The quick-change knock-down tee of claim 3, wherein: The flap shaft (4) is supported at both ends on the front plate (21) and the rear plate (22) respectively by bearings (9).

5. The quick-change knock-down tee of claim 1, wherein: The contact edge between the flap (3) and the inner wall of the box (1) is provided with a sealing structure.

6. A quick-change flip-type feeding tee pipe according to claim 5, characterized in that: The sealing structure is a detachable wear-resistant rubber plate or a metal sealing strip.

7. The quick-change knock-down tee of claim 6, wherein: The flap (3) is made of wear-resistant steel plate and / or has a wear-resistant layer welded to its facing surface.

8. The quick-change knock-down tee of claim 2, wherein: The connecting rod (8) is connected to an external drive device, which is a cylinder, a hydraulic cylinder or an electric push rod.

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