A tee joint for concrete pump pipe

Abstract

The present invention provides a tee joint for a concrete pump pipe, comprising a feed pipe opening and two discharge pipe openings, at least one of which is provided with a valve device for sealing the discharge pipe opening. By providing the valve device at the discharge pipe opening, the tee joint for the concrete pump pipe of the present invention can directly seal either discharge pipe opening, changing the pouring direction of the pump pipe without the need for frequent disassembly of the pump pipe. Furthermore, the tee joint has a simple structure, saves time and effort, facilitates manual operation, and significantly improves concrete pouring efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pump pipes, in particular to a three-way joint for concrete pump pipes. Background Art

[0002] Pump pipe is one of the important equipment in engineering construction. Its function is to transport mixed concrete. Pump pipe is especially important in high-rise buildings. It can save labor and improve the construction efficiency of engineering buildings.

[0003] Currently, in the construction process of pouring concrete using ground pump pipes, the pump pipes need to be frequently removed and installed as the pouring area moves. During the pouring period, the installation and removal of the pump pipes are done manually, which is very difficult and tedious, time-consuming and labor-intensive, and the pouring quality of the concrete cannot be guaranteed. The long installation and removal time is more likely to cause pipe blockage. Therefore, the development of a three-way pump pipe joint is particularly important.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a tee joint for a concrete pump pipe, which has a simple structure, saves time and labor, is easy to operate manually and greatly improves the efficiency of concrete pouring.

[0006] To solve the above technical problems, the present invention provides a tee joint for a concrete pump pipe, comprising a feed pipe port and two discharge pipe ports, at least one of the two discharge pipe ports being provided with a valve device for sealing the discharge pipe port.

[0007] Furthermore, the valve device is composed of an upper valve body, a lower valve body, two front fixing plates welded to the discharge pipe opening, and a rear positioning plate sleeved and fixed to the discharge pipe opening;

[0008] One side of the upper and lower valve bodies is fixed to the front fixing plate respectively; a plurality of positioning holes are opened on the rear positioning plate, and the other sides of the upper and lower valve bodies are fixed to the rear positioning plate respectively through the cooperation of positioning pins and positioning holes;

[0009] Both the upper and lower valve bodies include a lifting assembly, on which a tubular blocking body is fixed. The tubular blocking bodies of the upper and lower valve bodies are relatively staggered. Arc-shaped openings are respectively opened on the upper and lower sides of the discharge pipe opening. The tubular blocking bodies of the upper and lower valve bodies respectively penetrate the arc-shaped openings to seal the discharge pipe opening.

[0010] Furthermore, the lifting components of the upper and lower valve bodies each include a lifting body, racks are provided on both sides of the lifting body, a gear column is welded to one side of the front fixed plate, gears are provided at both ends of the gear column, and the gears and racks are meshed.

[0011] Furthermore, the lifting body includes a first connecting block and a second connecting block, both sides of the first connecting block are fixed to the rack, and the inner side of the second connecting block is fixed to the discharge pipe by welding;

[0012] The first connecting block is provided with a connecting hole adapted to the positioning hole; the second connecting block is provided with a sliding hole adapted to the tubular blocking body, the sliding hole being in communication with the arc-shaped opening;

[0013] One end of the tubular blocking body is fixed to the inner side of the first connecting block, and the other end is movable and passes through the sliding hole and the arc-shaped hole in sequence.

[0014] Furthermore, the inner sides of the two front fixing plates are both arc-shaped, which are adapted to the discharge pipe opening.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The concrete pump pipe tee joint of the present invention can directly block any outlet by providing a valve device at the outlet of the pipe, changing the pouring direction of the pump pipe without the need to frequently disassemble the pump pipe. In addition, it has a simple structure, saves time and labor, is easy to operate, and greatly improves the efficiency of concrete pouring.

[0017] 2. The valve device of the present invention forms a valve structure by inserting the tubular blocking bodies of the upper and lower valve bodies into each other in a staggered manner. This structure has a small stress-bearing area and is not easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the tee joint for concrete pump pipe proposed by the present invention;

[0020] Figure 2 This is a schematic structural diagram of the valve device proposed in the present invention;

[0021] Figure 3 This is a schematic diagram of the valve opening structure of the valve device proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the valve closing structure of the valve device proposed in the present invention.

[0023] Description of reference numerals:

[0024] 1-feed pipe; 2-discharge pipe;

[0025] 3-Front fixing plate; 4-Rear positioning plate;

[0026] 41- positioning hole; 42- positioning pin;

[0027] 5- tubular blocking body; 6- lifting body;

[0028] 7- rack; 8- gear column;

[0029] 81-gear; 61-first connecting block;

[0030] 62-Second connection block. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0034] See Figure 1-4The figure shows a tee joint for concrete pump pipes proposed by the present invention, comprising a feed pipe port 1 and two discharge pipe ports 2, at least one of which is provided with a valve device for sealing the discharge pipe port. By providing a valve device at the discharge pipe port, the tee joint for concrete pump pipes of the present invention can directly seal either discharge port, changing the pouring direction of the pump pipe without the need for frequent disassembly of the pump pipe. Furthermore, the tee joint has a simple structure, saves time and effort, is easy to operate, and significantly improves concrete pouring efficiency.

[0035] In this embodiment, the valve device consists of upper and lower valve bodies, two front fixing plates 3 welded to the discharge pipe 2, and a rear positioning plate 4 sleeved and fixed to the discharge pipe. One side of the upper and lower valve bodies is fixed to the front fixing plate 3 respectively; the rear positioning plate 4 is provided with a plurality of positioning holes 41, and the other sides of the upper and lower valve bodies are fixed to the rear positioning plate 4 by the cooperation of positioning pins 42 and positioning holes 41.

[0036] Specifically, both the upper and lower valve bodies include a lifting assembly, to which a tubular blocking member 5 is fixed. These blocking members 5 are offset relative to each other, with arcuate openings defined on the upper and lower sides of the discharge spout 2. The two rows of tubular blocking members 5 in the upper and lower valve bodies extend through these arcuate openings and, after moving toward each other, are offset and aligned to seal the discharge spout 2. The offset insertion of the tubular blocking members forms a valve structure with a small stress-bearing area and resistance to deformation. Preferably, the tubular blocking members 5 are composed of several steel columns, which are rigid and resistant to deformation and bending.

[0037] In this embodiment, the lifting assemblies of the upper and lower valve bodies each include a lifting body 6, with racks 7 provided on both sides of the lifting body 6. A gear column 8 is welded to one side of the front fixing plate 3, and gears 81 are provided at both ends of the gear column 8, which mesh with the rack 7. The lifting body 6 is mainly driven by the rack 7 for lifting and lowering, and the gear column 8 and the rear positioning plate 4 provide a certain degree of guidance for it. When the discharge pipe 2 needs to be blocked, the lifting body 6 moves downward, driving the two rows of tubular blocking bodies 5 of the upper and lower valve bodies to move toward each other and then offset and align to achieve blocking. The corresponding blocking position is then fixed using the positioning pins 42. When the discharge pipe 2 needs to be opened, the lifting body 6 is moved upward and its position is also fixed using the positioning pins 42. After the ground pump is connected to the three-way connector of the present invention, it is relatively easy to change the direction of concrete pumping without having to frequently disassemble the pump pipe when the concrete pumping position needs to be changed.

[0038] In addition, the lifting body 6 includes a first connecting block 61 and a second connecting block 62. Both sides of the first connecting block 61 are fixed to the rack 7. The inner side of the second connecting block 62 is fixed to the discharge nozzle 2 by welding. The first connecting block 61 is provided with a connecting hole that is compatible with the positioning hole 41. The positioning pin 42 is inserted through the positioning hole 41 and the connecting hole to secure the lifting body. The second connecting block 62 is provided with a sliding hole that is compatible with the tubular blocking body. The sliding hole and the arc-shaped opening are connected. One end of the tubular blocking body 5 is fixed to the inner side of the first connecting block 61, and the other end moves through the sliding hole and the arc-shaped opening in sequence.

[0039] On the basis of the above solution, the inner sides of the two front fixing plates 3 are both arc-shaped, adapted to the discharge pipe opening 2, and used to block the outflow of concrete slurry when the valve is opened.

[0040] When the tee joint for the concrete pump pipe of the present invention is used, the feed pipe port 1 is connected to the ground pump, and one of the discharge pipe ports 2 is connected to the pump pipe through a valve device. When concrete pouring begins, the valve device connected to the pump pipe is first adjusted to a flow state, and its position is fixed by a positioning pin 42 to prevent the tubular blocking body 5 from moving. The other discharge pipe port 2 is adjusted to a blocked state and also fixed by a positioning pin 42. Conversely, the other discharge pipe port 2 can also be adjusted to a flow state, and one discharge pipe port 2 can be adjusted to a flow state, thereby realizing a change in the direction of pumping concrete.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tee joint for a concrete pump pipe, characterized in that: It includes a feed pipe opening and two discharge pipe openings, at least one of which is provided with a valve device for sealing the discharge pipe opening; the valve device is composed of an upper and lower valve body, two front fixing plates welded to the discharge pipe openings, and a rear positioning plate sleeved and fixed on the discharge pipe openings; One side of the upper and lower valve bodies is fixed to the front fixing plate respectively; a plurality of positioning holes are opened on the rear positioning plate, and the other sides of the upper and lower valve bodies are fixed to the rear positioning plate respectively through the cooperation of positioning pins and positioning holes; Both the upper and lower valve bodies include a lifting assembly, on which a tubular blocking body is fixed. The tubular blocking bodies of the upper and lower valve bodies are relatively staggered. Arc-shaped openings are respectively opened on the upper and lower sides of the discharge pipe opening. The tubular blocking bodies of the upper and lower valve bodies respectively penetrate the arc-shaped openings to seal the discharge pipe opening.

2. The tee joint for concrete pump pipe according to claim 1, characterized in that: The lifting components of the upper and lower valve bodies include a lifting body, with racks provided on both sides of the lifting body, a gear column welded to one side of the front fixed plate, and gears provided at both ends of the gear column, and the gears and racks are meshed.

3. The tee joint for concrete pump pipe according to claim 2, characterized in that: The lifting body includes a first connecting block and a second connecting block, both sides of the first connecting block are fixed to the rack, and the inner side of the second connecting block is fixed to the discharge pipe by welding; The first connecting block is provided with a connecting hole adapted to the positioning hole; the second connecting block is provided with a sliding hole adapted to the tubular blocking body, the sliding hole being in communication with the arc-shaped opening; One end of the tubular blocking body is fixed to the inner side of the first connecting block, and the other end is movable and passes through the sliding hole and the arc-shaped hole in sequence.

4. The tee joint for concrete pump pipe according to claim 3, characterized in that: The inner sides of the two front fixing plates are both arc-shaped, which are adapted to the discharge pipe openings.

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