Underground vertical structure concrete conveying device

Abstract

The utility model discloses an underground vertical structure concrete conveying device. The underground vertical structure concrete conveying device comprises a first flow guide part, a confluence assembly and a second flow guide part. One end of the first flow guide part is used for being connected with a slurry outlet of the concrete mixer truck; the confluence assembly comprises a cross beam piece and can stretch across the vertical shaft through the cross beam piece. The other end of the first flow guide part is detachably connected with a slurry inlet of the confluence assembly; the second flow guide part is rotatably connected with a slurry outlet of the confluence assembly, the second flow guide part can rotate around the slurry outlet, the first flow guide part, the confluence assembly and the second flow guide part sequentially form a height difference, and concrete of the concrete mixer is conveyed to the confluence assembly through the first flow guide part under the gravity effect; the concrete is conveyed into the supporting formwork of the vertical shaft through the second flow guiding piece, the conveying efficiency is high, the cost is low, and the concrete conveying device is suitable for small and medium-sized projects.

Description

Technical Field

[0001] The utility model relates to an underground vertical structure concrete conveying device, belonging to the technical field of concrete transportation. Background Art

[0002] Underground vertical structures primarily refer to structural systems perpendicular to the ground surface within underground spaces. These include load-bearing components such as support columns, walls, and floor slabs in underground buildings, as well as the laying of underground pipelines and the vertical layout of underground transportation facilities. These structures primarily manifest in vertical shaft projects, which often face complex geological conditions such as deep soft soil, high water levels, and rock formations. These geological conditions pose significant challenges to shaft wall stability. During excavation, without effective support, shaft walls can easily deform, crack, or even collapse under the pressure of the surrounding rock and soil, jeopardizing construction safety. Shaft support is a crucial measure for ensuring underground construction and personnel safety. Support effectively strengthens shaft walls, increases shaft stability, and reduces risks during underground construction. Furthermore, support structures prevent accidents such as shaft wall collapse and rockfall, ensuring the safety of construction workers.

[0003] Currently, two common practices in the industry are: first, pumping. This involves pumping concrete to the top of the shaft using a concrete pump, then progressively pumping it downward through pipes until it reaches the construction site. While this method offers high delivery efficiency and concrete uniformity, it is only suitable for large-scale projects. It requires specialized equipment and operators, and comes with high pumping costs. Second, bucket loading. This method involves transporting concrete to the top of the shaft using a bucket truck, where it is then loaded into the shaft through the truck's top bucket. This method uses simple equipment, and bucket trucks can typically make multiple round trips, making it suitable for small and medium-sized projects. However, this method limits transportation distances and results in poor concrete uniformity, making it unsuitable for some high-quality projects.

[0004] Therefore, under the condition of ensuring a certain uniformity of concrete, there is an urgent need for a concrete conveying device with high transmission efficiency, low cost and suitable for small and medium-sized projects. Utility Model Content

[0005] In response to the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide an underground vertical structure concrete conveying device, which includes a first guide member, a confluence assembly and a second guide member. The second guide member can rotate around the slurry outlet. The first guide member, the confluence assembly and the second guide member form a height difference in sequence. Under the action of gravity, the concrete of the concrete mixer truck is conveyed to the confluence assembly through the first guide member, and the confluence assembly then transfers the concrete to the second guide member. The second guide member transfers the concrete to the support formwork of the vertical shaft. The transmission efficiency is high, the cost is low and it is suitable for small and medium-sized projects.

[0006] The utility model provides an underground vertical structure concrete conveying device, comprising:

[0007] a first flow guide, one end of which is used to be connected to a slurry outlet of a concrete mixer truck;

[0008] A confluence assembly, the confluence assembly comprising a crossbeam, the confluence assembly being able to span the vertical shaft via the crossbeam; the other end of the first flow guide being detachably connected to the slurry inlet of the confluence assembly;

[0009] The second guide member is rotatably connected to the slurry outlet of the confluence assembly, and the second guide member can rotate around the slurry outlet. The first guide member, the confluence assembly and the second guide member form a height difference in sequence. Under the action of gravity, the concrete of the concrete mixer truck is transported to the confluence assembly through the first guide member, and the confluence assembly then transfers the concrete to the second guide member, and the second guide member transfers the concrete to the support formwork of the vertical shaft.

[0010] As a further preferred embodiment of the present invention, the confluence assembly includes:

[0011] A confluence funnel, the top of which is a slurry inlet of the confluence funnel;

[0012] a telescopic sleeve, one end of which is connected to the bottom opening of the converging funnel;

[0013] A flow guide member height adjustment mechanism is connected to the second flow guide member.

[0014] As a further preferred embodiment of the present invention, the guide member height adjustment mechanism includes:

[0015] a cable, one end of which passes through the converging funnel and the telescopic sleeve and is connected to the second flow guide member;

[0016] A cable retractor is provided on the crossbeam, and the other end of the cable is connected to the cable retractor, and the cable is retracted and released to adjust the height of the second flow guide member.

[0017] As a further preferred embodiment of the present invention, the telescopic sleeve comprises a first sleeve and a second sleeve sleeved on the first sleeve;

[0018] The guide member height adjustment mechanism includes: a connecting rod member provided on the telescopic sleeve member, one end of the connecting rod member is connected to the first sleeve member, and the other end is rotatably connected to the second guide member.

[0019] As a further preferred embodiment of the present invention, the connecting rod is connected to one side wall of the first sleeve, and is on a side away from the slurry outlet of the second flow guide.

[0020] As a further preferred embodiment of the present invention, the guide member height adjustment mechanism includes: an adjusting nut, and the other end of the connecting rod passes through the second guide member and is threadedly connected to the adjusting nut.

[0021] As a more preferred embodiment of the present invention, it further includes a pulley assembly, which is arranged at the bottom of the slurry outlet of the second guide member and is used for sliding connection with the support template of the vertical shaft.

[0022] As a further preferred embodiment of the present invention, universal pulleys are respectively provided at the bottoms of both ends of the crossbeam.

[0023] As a further preferred embodiment of the present invention, the confluence funnel includes at least one plug-in slot provided on the confluence funnel body; and the first flow guide member is provided with a plug-in portion adapted to the at least one plug-in slot.

[0024] As a more preferred embodiment of the present invention, it further includes a deflector bracket set on the ground, and the bottom of the first deflector is detachably connected to the deflector bracket.

[0025] The utility model includes a first flow guide, a confluence assembly and a second flow guide. The second flow guide can rotate around the slurry outlet. The first flow guide, the confluence assembly and the second flow guide form a height difference in sequence. Under the action of gravity, the concrete of the concrete mixer truck is transported to the confluence assembly through the first flow guide, and the confluence assembly then transfers the concrete to the second flow guide. The second flow guide transfers the concrete to the support formwork of the vertical shaft. The transmission efficiency is high, the cost is low and it is suitable for small and medium-sized projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of a concrete conveying device in the embodiment.

[0027] Figure 2 Schematic diagram of the structure of another concrete conveying device in the embodiment.

[0028] Figure 3 Schematic diagram of the structure of the confluence component in the embodiment.

[0029] Figure 4 Schematic diagram of the structure of the wire take-up and unwinding device in the embodiment.

[0030] Figure 5 Schematic diagram of the structure of the pulley assembly in the embodiment.

[0031] Reference numerals:

[0032] 1-first guide member, 11-guide trough plate, 12-reinforced steel beam.

[0033] 2-convergence assembly, 21-crossbeam, 211-universal pulley part, 22-convergence funnel, 221-slurry inlet of the converging funnel, 222-positioning slot, 23-telescopic sleeve, 231-first sleeve, 232-second sleeve, 2321-cloth sleeve, 23211-notch, 24-height adjustment mechanism of the guide member, 241-cable, 2411-node, 242-retractor, 2421-turntable, 2422-crank handle, 2423-seat, 2424-limiting card plate, 243-connecting rod, 244-adjusting nut.

[0034] 3- Second flow guide.

[0035] 4- pulley assembly, 41- first pulley, 42- second pulley.

[0036] 5-Deflector bracket.

[0037] 100-shaft, 101-support formwork.

[0038] 200-ground. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0040] It should be noted that when an element is referred to as being “fixed on” or “set on” another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being “connected to” another component, it can be directly connected to the other component or indirectly connected to the other component.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0043] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0044] Example

[0045] This embodiment is intended to provide a concrete conveying device with high transmission efficiency, low cost, and suitability for small and medium-sized projects. A height difference is sequentially formed by a first flow guide 1, a confluence assembly 2, and a second flow guide 3. Under the action of gravity, concrete from a concrete mixer truck is conveyed through the first flow guide 1 to the confluence assembly 2. The confluence assembly 2 then transfers the concrete to the second flow guide 3. The second flow guide 3 then transfers the concrete into the formwork of the shaft wall 100. The second flow guide 3 is capable of rotating around the slurry outlet of the confluence assembly 2. During this rotation, the annular support formwork of the shaft 100 is sequentially poured. This device has high transmission efficiency, low cost, and is suitable for small and medium-sized projects.

[0046] Reference Figure 1 and 2 As shown, an underground vertical structure concrete conveying device includes:

[0047] The first guide member 1 has one end connected to the slurry outlet of the concrete mixer truck. The first guide member 1 can be a U-shaped guide trough plate 11, with reinforced steel beams 12 provided on both sides of the guide trough plate 11 to prevent stress concentration in the middle of the guide trough plate 11 during concrete transmission, resulting in deformation, bending, or even breakage. The slurry outlet of the concrete mixer truck is at a high position and flows into the first guide member 1. The first guide member 1 is tilted downward, and under the action of natural gravity, concrete can flow along the first guide member 1 into the slurry inlet of the confluence component 2. The guide trough surface of the guide trough plate 11 is smooth, reducing transmission resistance.

[0048] Reference Figure 1 and 2As shown, the manifold assembly 2 includes a crossbeam 21, which allows the manifold assembly 2 to span across the vertical shaft 100. The other end of the first guide member 1 is detachably connected to the slurry inlet of the manifold assembly 2. The crossbeam 21 not only supports the entire manifold assembly 2, but also supports a portion of the weight of the first guide member 1 and the second guide member 3, as well as the concrete being transported. The crossbeam 21 can be a set of reinforced steel beams 12, which can span the entire vertical shaft 100.

[0049] Reference Figure 1 and 2 As shown, the second guide member 3 is rotatably connected to the slurry outlet of the confluence assembly 2. The purpose of the rotatable connection is to allow one end of the second guide member 3 to be rotated and cast with the slurry outlet of the confluence assembly 2 as the center. The first guide member 1, the confluence assembly 2, and the second guide member 3 successively form a height difference. Under the action of gravity, concrete from the concrete mixer truck is transported to the confluence assembly 2 through the first guide member 1. The confluence assembly 2 then transfers the concrete to the second guide member 3. The second guide member 3 transfers the concrete to the formwork of the shaft 100 wall. Construction workers only need to move the slurry outlet end of the second guide member 3. The concrete flows out of the mixer truck and is transferred to the support formwork 101 through the concrete conveying device in a short time, effectively avoiding the segregation and poor uniformity of concrete caused by the long retention time when using the bucket loading method. The transfer process relies on the concrete's own gravity, reducing transportation costs and labor costs. It should be added that the second guide member 3 can also have the same structure as the first guide member 1.

[0050] Reference Figure 3 As shown, the confluence assembly 2 includes a confluence funnel 22, a telescopic sleeve 23, and a guide height adjustment mechanism 24. The top of the confluence funnel 22 is its slurry inlet 221. Connecting notches 222 are provided on both sides of the confluence funnel 22 for connecting to the crossbeam 21. The crossbeam 21 is a set of two reinforced steel beams 12. The connecting notches 222 can be snapped into the reinforced steel beams 12, or the confluence funnel 22 can be removed from the reinforced steel beams 12, forming a modular assembly.

[0051] Reference Figure 3 As shown, one end of the telescopic sleeve 23 is connected to the bottom opening of the converging funnel 22, and the other end is detachably connected to the second flow guide 3. The telescopic sleeve 23 can be extended or shortened, and its center is hollow, used for guiding concrete. In one embodiment, the telescopic sleeve 23 can be straight or arc-shaped, or a combination of the two, or a combination of straight and spiral shapes, with the telescopic position set on the straight cylinder.

[0052] Reference Figure 3As shown, the guide member height adjustment mechanism 24 is connected to the second guide member 3. The purpose of the guide member height adjustment mechanism 24 is to adjust the height of the second guide member 3. As the depth of the shaft 100 increases, the guide member height adjustment mechanism 24 can effectively adjust the height of the second guide member 3, so that the support formwork 101 of each layer can be better poured.

[0053] Reference Figure 3 The guide member height adjustment mechanism 24 includes: a cable 241, one end of the cable 241 passes through the confluence funnel 22 and the telescopic sleeve 23, and is connected to the second guide member 3; illustratively, the cable 241 can pass through the second guide member 3, and then form a nodule 2411 at the end to limit the second guide member 3, and the other end is tied to one end of the crossbeam 21; when it is necessary to adjust and lower the second guide member 3, the construction personnel release the cable 241 on the crossbeam 21 and lower the cable 241, and then the second guide member 3 is displaced downward to the specified height by its own gravity, and then the cable 241 is tied to the crossbeam 21. It should be added that the telescopic sleeve 23 is rotatably connected to the second flow guide member 3. For example, the telescopic sleeve 23 can be connected to the second flow guide member 3 through a cloth sleeve 2321. The cloth sleeve 2321 has a notch 23211 in the flow direction of the second flow guide member 3. The cloth sleeve 2321 can not only realize the flexible connection between the telescopic sleeve 23 and the second flow guide member 3, but also block the concrete falling into the second flow guide member 3 to avoid the impact caused by the fall and splashing of the concrete.

[0054] Reference Figure 3 and 4 As shown, in one embodiment, the guide member height adjustment mechanism 24 further includes a cable retractor 242 disposed on the crossbeam 21. The other end of the cable 241 is connected to the cable retractor 242. The cable 241 is retracted and released to adjust the height of the second guide member 3. The cable retractor 242 includes a turntable 2421 around which the cable 241 is wound. A crank 2422 is provided on one side of the turntable 2421. Cranking the crank 2422 can drive the turntable 2421 to rotate to achieve the cable retracting and releasing function. The turntable 2421 also includes a base 2423 and a limiting clamping plate 2424. The turntable 2421 is disposed on the base 2423 and can be rotated on the base 2423. A slot is provided on one side of the turntable 2421. The limiting clamping plate 2424 is slidably connected to the base 2423. The limiting clamping plate 2424 can be inserted into the slot of the turntable 2421 to achieve limited rotation.

[0055] Reference Figure 3 As shown, in one embodiment, the telescopic sleeve 23 includes a first sleeve 231 and a second sleeve 232 sleeved on the first sleeve 231. In one embodiment, the first sleeve 231 and the second sleeve 232 can rotate relative to each other in the axial direction.

[0056] Reference Figure 5 As shown, the guide member height adjustment mechanism 24 includes a connecting rod 243 disposed on the telescopic sleeve 23. One end of the connecting rod 243 is connected to the first sleeve 231, and the other end is rotatably connected to the second guide member 3. When the connecting rod 243 is disposed outside the telescopic sleeve 23, the diameter of the first sleeve 231 is larger than that of the second sleeve 232. When the connecting rod 243 is disposed inside the telescopic sleeve 23, the diameter of the first sleeve 231 is smaller than that of the second sleeve 232. It should be noted that the telescopic sleeve 23 is rotatably connected to the second flow guide 3. For example, the telescopic sleeve 23 can be connected to the second flow guide 3 via a fabric sleeve 2321. The fabric sleeve 2321 has a notch 23211 formed in the flow direction of the second flow guide 3. The fabric sleeve 2321 not only enables a flexible connection between the telescopic sleeve 23 and the second flow guide 3, but also blocks concrete that falls into the second flow guide 3, preventing the impact of the fall from causing concrete to splash. In one embodiment, the flow guide height adjustment mechanism 24 also includes an adjustment nut 244. The other end of the connecting rod 243 passes through the second flow guide 3 and is threadedly connected to the adjustment nut 244. For example, the adjustment nut 244 can be integrated with a wrench to facilitate construction personnel to directly turn the adjustment nut 244.

[0057] Reference Figure 4 As shown, the concrete conveying device of this embodiment also includes a pulley assembly 4, which is arranged at the bottom of the slurry outlet of the second flow guide 3 and is used for sliding connection with the support formwork 101 of the shaft 100. The pulley assembly 4 includes a first pulley 41 and a second pulley 42. The first pulley 41 is used to roll on the top of the support formwork 101. There are two first pulleys 41, which are respectively located on the left and right sides of the bottom of the slurry outlet of the second flow guide 3; the second pulley 42 is used to slide on the inner wall of the support formwork 101. Construction workers can push the second flow guide 3 to the left or right to rotate through the pulley assembly 4, and no longer need to carry the second flow guide 3 to work, which reduces the work intensity of construction workers.

[0058] Reference Figure 4 As shown, in one embodiment, universal pulley parts 211 are respectively provided at the bottom of both ends of the crossbeam 21. The provision of the universal pulley part 211 can facilitate the crossbeam 21 to be moved to the middle position of the shaft 100 to carry out operations after the confluence assembly 2 is installed. The installation steps can be to first move the crossbeam 21 to the edge of the shaft 100, install the confluence assembly 2 to the middle position of the crossbeam 21, insert the first guide member 1 into the confluence funnel 22, and move the whole to the middle center position of the shaft 100 by means of the universal wheel, and then assemble the second guide member 3 to the confluence assembly 2 in the shaft. In one embodiment, the universal pulley part 211 is provided with a locking part to limit the movement. This is the prior art and will not be described in detail.

[0059] Reference Figure 3 As shown, the converging funnel 22 includes at least one insertion slot 222 disposed on the converging funnel 22 body; the first flow guide 1 is provided with a plug portion that mates with the at least one insertion slot 222. This facilitates assembly of the first flow guide 1 onto the converging funnel 22. In one embodiment, the plug portion is provided with a bent stop to prevent the plug portion from over-inserting into the insertion slot 222.

[0060] Reference Figure 1 and 2 As shown, the first deflector 1 further includes a deflector bracket 5 disposed on the ground 200. The bottom of the first deflector is detachably connected to the deflector bracket 5. The deflector bracket 5 is used to support the middle or end of the first deflector 1 to prevent the first deflector 1 from bending or breaking due to insufficient rigidity.

[0061] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An underground vertical structure concrete conveying device, characterized in that: include: a first flow guide, one end of which is used to be connected to a slurry outlet of a concrete mixer truck; A confluence assembly, the confluence assembly comprising a crossbeam, the confluence assembly being able to span the vertical shaft via the crossbeam; the other end of the first flow guide being detachably connected to the slurry inlet of the confluence assembly; The second guide member is rotatably connected to the slurry outlet of the confluence assembly, and the second guide member can rotate around the slurry outlet. The first guide member, the confluence assembly and the second guide member form a height difference in sequence. Under the action of gravity, the concrete of the concrete mixer truck is transported to the confluence assembly through the first guide member, and the confluence assembly then transfers the concrete to the second guide member, and the second guide member transfers the concrete to the support formwork of the vertical shaft.

2. The concrete conveying device according to claim 1, characterized in that: The confluence component comprises: A confluence funnel, the top of which is a slurry inlet of the confluence funnel; a telescopic sleeve, one end of which is connected to the bottom opening of the converging funnel; A flow guide member height adjustment mechanism is connected to the second flow guide member.

3. The concrete conveying device according to claim 2, characterized in that: The guide member height adjustment mechanism comprises: a cable, one end of which passes through the converging funnel and the telescopic sleeve and is connected to the second flow guide member; A cable retractor is provided on the crossbeam, and the other end of the cable is connected to the cable retractor, and the cable is retracted and released to adjust the height of the second flow guide member.

4. The concrete conveying device according to claim 2, characterized in that: The telescopic sleeve comprises a first sleeve and a second sleeve sleeved on the first sleeve; The guide member height adjustment mechanism includes: a connecting rod member provided on the telescopic sleeve member, one end of the connecting rod member is connected to the first sleeve member, and the other end is rotatably connected to the second guide member.

5. The concrete conveying device according to claim 4, characterized in that: The connecting rod is connected to a side wall of the first sleeve and is located away from the slurry outlet of the second flow guide.

6. The concrete conveying device according to claim 5, characterized in that: The guide member height adjustment mechanism includes an adjustment nut, and the other end of the connecting rod passes through the second guide member and is threadedly connected to the adjustment nut.

7. The concrete conveying device according to claim 1, characterized in that: It also includes a pulley assembly, which is arranged at the bottom of the slurry outlet of the second guide member and is used for sliding connection with the support template of the vertical shaft.

8. The concrete conveying device according to claim 1, characterized in that: The bottoms of both ends of the crossbeam are respectively provided with universal pulley parts.

9. The concrete conveying device according to claim 2, characterized in that: The confluence funnel includes at least one plug-in slot arranged on the confluence funnel body; the first flow guide member is provided with a plug-in portion adapted to the at least one plug-in slot.

10. The concrete conveying device according to claim 1, characterized in that: It also includes a deflector bracket set on the ground, and the bottom of the first deflector is detachably connected to the deflector bracket.

Images