Quick discharging device capable of preventing concrete from overflowing

Abstract

The utility model relates to the technical field of concrete production, and discloses a concrete anti-overflow rapid discharging device which comprises a first main plate used for being connected with a discharging opening of a mixing main machine and a second main plate used for being connected with a feeding hopper of a mixing tank truck. One end of the connecting hose is connected with the first main plate, and the other end of the connecting hose is connected with the second main plate; the device further comprises a driving assembly, the driving assembly is arranged on the outer side of the connecting hose, one end of the driving assembly is connected with the first main plate in the mode that the driving assembly can drive the connecting hose to stretch out and draw back, and the other end of the driving assembly is connected with the second main plate. The rapid discharging device further comprises at least one guide assembly arranged on the outer side of the connecting hose and connected with the first main plate and the second main plate. The driving device drives the second main plate and the connecting hose to extend or retract along the guide assembly to connect the mixing main machine and the mixing tank truck, so that an external structure is prevented from being polluted by concrete during use, the guide structure is more durable, and overflow and leakage can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a quick unloading device for preventing concrete from overflowing. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] In the concrete production process, the concrete mixed by the main mixer needs to be transferred to the construction site by the mixing tank truck for use. When filling, the feed hopper of the mixing tank truck needs to be aligned with the feed hopper of the main mixer, and then the main mixer controls the discharge and transfers the concrete to the mixing tank truck.

[0004] At present, the unloading process of some mixing hosts is manually controlled, and the unloading rate is difficult to control. There is a possibility that the unloading is too fast, resulting in concrete overflow and leakage, resulting in waste of raw materials. In recent years, some companies' mixing hosts have been equipped with unloading doors that automatically control the unloading speed. Although the unloading speed can be automatically adjusted according to the material level using technologies such as material level sensors or material level detection algorithms, which can reduce the occurrence of overflow and leakage, the automatic unloading door is relatively technically difficult and the configuration cost is high, so it is not suitable for large-scale promotion and use.

[0005] Therefore, it is necessary to develop suitable equipment to prevent overflow and leakage. The prior art CN209579984U discloses a device for pouring and discharging autoclaved aerated concrete, in which a discharging frame is installed on the discharging port of the mixing main machine, and a discharging screw is movably arranged in the middle of the discharging frame. A discharging hose is movably installed at the bottom of the discharging frame, and a discharging hopper is movably installed at the bottom of the discharging hose. The discharging screw is used to assist in controlling the discharging speed, and the device can flexibly connect to discharging hoppers in multiple directions based on the discharging hose. However, when using the device, the discharging frame needs to be manually installed on the discharging port of the mixing main machine, and the lower discharging hopper is only fixed by a horizontal support rod. The discharging hopper is not tightly connected to the feed hopper of the mixing tank truck, and there is still a risk of leakage, and the installation and use process is complicated. The prior art CN206644149U also discloses another concrete unloading device, in which a blocking sleeve is sleeved on the outer wall of the discharge hopper, and the blocking sleeve is driven by a driving assembly to slide up and down on the outer wall of the discharge hopper, thereby blocking the gap between the discharge hopper and the feed hopper of the mixing tank truck, thereby preventing concrete from splashing. Although the prior art can theoretically prevent concrete splashing, the slide rail is prone to deformation and failure during long-term use, and the hard sleeve is prone to deformation under the extrusion of concrete during long-term use, thereby failing to achieve perfect matching with the feed hopper, which is not conducive to long-term use and requires frequent replacement. Utility Model Content

[0006] The purpose of the utility model is to provide a quick unloading device for preventing concrete overflow in view of the deficiencies in the prior art, which can quickly connect the discharge port of the mixing main machine and the feed hopper of the mixing tank truck based on simple operation to prevent overflow and leakage, is suitable for long-term use, and has good adaptability.

[0007] The technical solution of the utility model is as follows:

[0008] A quick discharge device for preventing concrete from overflowing, comprising a first main board for connecting to a discharge port of a mixing main machine and a second main board for connecting to a feed hopper of a mixing tank truck;

[0009] It also includes a connecting hose, one end of which is connected to the first main board, and the other end of which is connected to the second main board;

[0010] It also includes a driving component, which is arranged on the outside of the connecting hose, and one end of the driving component is connected to the first main board, and the other end is connected to the second main board; based on the movement of the driving component, the connecting hose is driven to extend and contract, and the connection between the discharge port of the mixing main machine and the feed hopper of the mixing tank truck is adjusted.

[0011] According to a preferred embodiment, the quick unloading device further comprises at least one guide assembly disposed outside the connecting hose and connected to the first main board and the second main board. The guide assembly comprises a guide optical axis and a support for fixing the guide optical axis.

[0012] The support includes a first support connected to the first main board and a second support connected to the second main board, a through hole is provided on the first main board at a position corresponding to the support, and the guide light axis passes through the through hole and is connected to the first support and the second support. When the driving component drives the second main board to move away from the first main board, the moving direction of the unloading device is limited based on the guiding function of the guide component.

[0013] According to a preferred embodiment, the second support is a linear bearing.

[0014] The driving component is a cylinder or a telescopic motor.

[0015] According to a preferred embodiment, the number of the driving components is at least two, the number of the guiding components is at least four, and at least two guiding components are symmetrically arranged on both sides of the driving component to fully ensure the extension direction of the quick unloading device.

[0016] According to a preferred embodiment, the driving assembly includes a fixed end and an extended end, and the extended end of the driving assembly is connected to the first main board (or the second main board) through a floating joint and a floating pressure plate, so as to provide more space for the connection between the quick unloading device and the feed hopper of the mixing tank truck, so that the quick unloading device has a certain flexibility.

[0017] According to a preferred embodiment, a first dust cover is provided on the extended end of the drive assembly, one end of the first dust cover is connected to the fixed end of the drive assembly through a clamp, and the other end of the first dust cover is connected to the free end of the extended end. The dust cover can prevent concrete, cement, flying dust, etc. from entering the drive assembly and affecting the use of the drive assembly.

[0018] According to a preferred embodiment, a sealing component is provided on the side of the second main board facing away from the first main board, and the sealing component is composed of an elastic material. When the second main board is connected to the feed hopper of the mixing tank truck, the connection stability between the two can be improved based on the buffering of the elastic material, and the existence of gaps can be avoided, which is more conducive to preventing concrete overflow. Preferably, the sealing component is a foam sealing plate. The foam sealing plate includes a foam plate and a foam substrate connected to each other, and the foam substrate is connected to the second main board.

[0019] According to a preferred embodiment, a protective cover is connected to a position on the first mainboard corresponding to the guide light axis, and the guide light axis passes through the through hole and moves in the protective cover.

[0020] According to a preferred embodiment, it also includes a second dust cover arranged between the first support and the second support, wherein the second dust cover is arranged on the outer side of the guide light axis, one end of the second dust cover is connected to the first support, and the other end of the second dust cover is connected to the second support.

[0021] According to a preferred embodiment, the connecting hose is connected to the first main board and the second main board by means of a pressing plate and bolts. Preferably, the pressing plate is an annular pressing plate.

[0022] Preferably, the connecting hose is a spherical rubber hose.

[0023] Compared with the existing technology, the beneficial effects of the utility model are:

[0024] 1. A quick discharge device for preventing concrete from overflowing, which can realize the connection and disconnection between the discharge device and the feed hopper of the mixing tank truck by driving the connecting hose to expand and contract based on a driving device. After the discharge is completed, the concrete slurry attached to the inside can also be cleaned by stretching and deforming the connecting hose;

[0025] 2. A quick unloading device for preventing concrete from overflowing. The arrangement of the floating joint and the floating pressure plate allows a certain amount of free movement between the driving component and the second main board, thereby enabling the second main board to adapt to the shape and position of the feed hopper of the mixing tank truck to achieve a stable and tight connection; in conjunction with the arrangement of the sealing component, it can further avoid the existence of gaps after the connection, thereby improving the stability of the connection;

[0026] 3. A quick discharge device for preventing concrete from overflowing, which uses a connecting hose to discharge concrete in a closed manner. The concrete will not pollute the mechanical structure of the discharge device, thereby extending the service life of the machine; the flexible connecting hose is not easy to get stuck and requires low maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the appearance of the quick unloading device for preventing concrete overflow of the utility model;

[0028] Figure 2 This is a functional structure diagram of the utility model of a quick unloading device for preventing concrete overflow;

[0029] Figure 3 This is a schematic diagram of the installation structure of the utility model of a quick unloading device for preventing concrete overflow;

[0030] Figure 4 The utility model is a schematic diagram of the operating state of the quick unloading device for preventing concrete overflow.

[0031] Figure markings: 1-first main board, 2-connecting hose, 3-pressure plate, 4-second main board, 5-driving assembly, 6-floating joint, 7-floating pressure plate, 8-guide light axis, 9-second support, 10-first support, 11-sealing assembly, 1101-foam board, 1102-foam substrate, 12-first dust cover, 13-hoop, 14-protective cover, 15-discharging port of mixing main machine, 16-feed hopper of mixing tank truck, 17-concrete. DETAILED DESCRIPTION

[0032] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0034] Example 1

[0035] like Figure 1 and Figure 4As shown, a quick unloading device for preventing concrete overflow of the present application comprises a first main board 1 for connecting to the discharge port 15 of the mixing main machine and a second main board 4 for connecting to the feed hopper of the mixing tank truck. The quick unloading device also comprises a connecting hose 2, one end of which is connected to the first main board 1, and the other end is connected to the second main board 4. Preferably, the connecting hose 2 is made of wear-resistant and corrosion-resistant synthetic rubber material and is made by injection molding. The quick unloading device also comprises a driving assembly 5, which is arranged on the outside of the connecting hose 2, and one end of the driving assembly 5 is connected to the first main board 1, and the other end is connected to the second main board 4; based on the movement of the driving assembly 5, the connecting hose 2 is driven to extend and contract, and the connection between the discharge port 15 of the mixing main machine and the feed hopper of the mixing tank truck is adjusted. The driving assembly 5 is, for example, a telescopic motor or a cylinder.

[0036] According to a preferred embodiment, the quick unloading device further comprises a guide assembly arranged outside the connecting hose 2, the guide assembly comprising a guide optical axis 8 and a support for fixing the guide optical axis 8. The guide optical axis 8 can guide the moving direction of the second main board 4.

[0037] The support includes a first support 10 connected to the first main board 1 and a second support 9 connected to the second main board 4. A through hole is provided on the first main board 1 at a position corresponding to the support. The guide light axis 8 passes through the through hole and is connected to the first support 10 and the second support 9. The length of the guide light axis 8 is set to be greater than the length of the extension of the connecting hose 2. When the driving assembly 5 drives the connecting hose 2 to contract, the extended portion of the guide light axis 8 extends out of the through hole on the first main board 1.

[0038] According to a preferred embodiment, the second support 9 is a linear bearing, which improves the guiding smoothness, stability and durability of the optical axis.

[0039] According to a preferred embodiment, Figure 1 As shown, the driving components 5 are provided with at least two, which are arranged opposite to each other, so as to facilitate mechanical balance and stably drive the second mainboard 4 to move. Preferably, the guiding components are provided with at least four, and at least two guiding components are symmetrically arranged on both sides of the driving component 5 to stabilize the guiding.

[0040] According to a preferred embodiment, the driving assembly 5 includes a fixed end and an extended end, and the extended end of the driving assembly 5 is connected to the first main board 1 (or the second main board 4) through a floating joint 6 and a floating pressure plate 7. More space is provided for the connection between the quick unloading device and the feed hopper 16 of the mixing tank truck, so that the quick unloading device has a certain degree of flexibility.

[0041] According to a preferred embodiment, a first dust cover 12 is provided on the extended end of the drive assembly 5, one end of the first dust cover 12 is connected to the fixed end of the drive assembly 5 through a clamp 13, and the other end of the first dust cover 12 is connected to the free end of the extended end. The dust cover can prevent concrete, cement, flying dust, etc. from entering the drive assembly 5 and affecting the use of the drive assembly 5.

[0042] like Figure 2 and Figure 3 As shown, a sealing component 11 is provided on the side of the second main board 4 facing away from the first main board 1, and the sealing component 11 is made of elastic material. When the second main board 4 is connected to the feed hopper of the mixing tank truck, the elastic material can be used as a buffer to improve the connection stability between the two, avoid gaps, and help prevent concrete from overflowing. Preferably, the sealing component 11 is a foam sealing plate. Figure 2 As shown, the foam sealing plate includes a foam plate 1101 and a foam substrate 1102 connected to each other, and the foam substrate 1102 is connected to the second main board 4.

[0043] According to a preferred embodiment, a protective cover 14 is connected to the position of the first main board 1 corresponding to the guide light axis 8, and the guide light axis 8 passes through the through hole and moves in the protective cover 14. The protective cover 14 can prevent dust from contaminating the guide light axis 8 and the support, thereby improving the durability of the device.

[0044] According to a preferred embodiment, it also includes a second dust cover arranged between the first support 10 and the second support 9, and the second dust cover is arranged on the outside of the guide light axis 8, one end of which is connected to the first support 10, and the other end of which is connected to the second support 9, to isolate external concrete and dust.

[0045] According to a preferred embodiment, the connecting hose 2 is connected to the first main board 1 and the second main board 4 by means of a pressing plate 3 and bolts. Preferably, the pressing plate 3 is an annular pressing plate 3. The connection stability of the connecting hose 2 and the first main board 1 and the second main board 4 is improved.

[0046] Preferably, the connecting hose 2 is a spherical rubber hose.

[0047] The following describes the use process of the quick unloading device of the present application for ease of understanding:

[0048] The quick unloading device for preventing concrete overflow adopts the following steps to carry out the unloading process:

[0049] S1: Before discharging, there is no material in the discharging hopper of the mixing main unit, the driving assembly 5 and the connecting hose 2 remain in a retracted state, and the second main board 4 and the sealing assembly 11 are in a raised state.

[0050] S2: When preparing to unload, the mixing tank truck is parked in place, the mixing tank truck feed hopper 16 is in place, the drive assembly 5 and the connecting hose 2 are extended, and the second main board 4 and the sealing assembly 11 are lowered and docked to the upper edge of the mixing tank truck feed hopper 16.

[0051] S3: During unloading, the main mixer discharges the material, and the concrete is discharged to the feed hopper 16 of the mixing tank truck through the discharging port 15 of the main mixer and the connecting hose 2, and finally enters the mixing tank truck. During the unloading process, even if the concrete flow rate is too fast, it will not overflow due to the restriction of the sealing component 11. Preferably, in order to speed up the unloading speed, the device can also be equipped with a vibration device to improve the flow performance of the concrete. At the end of the unloading process, the weighing function of the discharging hopper of the main mixer is used to determine that the unloading is complete. At this time, the driving component 5 is extended and retracted multiple times to vibrate the concrete attached to the connecting hose 2 and the sealing component 11 until the concrete no longer drips in large quantities, completing the entire unloading process.

[0052] S4: After the unloading is completed, there is no need to clean the device specially. The connecting hose 2 is in a straight state during the unloading process, and there is no space for a large amount of material accumulation. At the same time, the timing control device can be extended and retracted, and the flexible deformation of the connecting hose 2 causes the concrete attached to the surface to automatically peel off and fall off.

[0053] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A quick unloading device for preventing concrete overflow, characterized in that: It comprises a first main board (1) for connecting to a discharging port (15) of a mixing main machine and a second main board (4) for connecting to a feeding hopper of a mixing tank truck; It also includes a connecting hose (2), one end of the connecting hose (2) is connected to the first main board (1), and the other end of the connecting hose (2) is connected to the second main board (4); The device further comprises a driving assembly (5), wherein the driving assembly (5) is arranged outside the connecting hose (2), and one end of the driving assembly (5) is connected to the first main board (1) and the other end is connected to the second main board (4) in a manner capable of driving the connecting hose (2) to extend and retract.

2. A quick unloading device for preventing concrete overflow according to claim 1, characterized in that: It also comprises at least one guide component which is arranged on the outside of the connecting hose (2) and is connected to the first main board (1) and the second main board (4).

3. A quick unloading device for preventing concrete overflow according to claim 2, characterized in that: The guide assembly comprises a guide optical axis (8), and also comprises a support for connecting the guide optical axis (8) and the first main board (1) and the second main board (4); The support comprises a first support (10) connected to the first main board (1) and a second support (9) connected to the second main board (4); a through hole is provided on the first main board (1) at a position corresponding to the support; the guide light axis (8) passes through the through hole and is connected to the first support (10) and the second support (9).

4. A quick unloading device for preventing concrete overflow according to claim 3, characterized in that: The first support (10) is a linear bearing.

5. The quick unloading device for preventing concrete overflow according to claim 1 is characterized in that: The driving component (5) is a cylinder or a telescopic motor.

6. A quick unloading device for preventing concrete overflow according to claim 1, characterized in that: The driving component (5) comprises a fixed end and an extended end, and the extended end of the driving component (5) is connected to the first main board (1) or the second main board (4) via a floating joint (6) and a floating pressure plate (7).

7. A quick unloading device for preventing concrete overflow according to claim 6, characterized in that: A first dust cover (12) is provided on the extended end of the driving component (5), one end of the first dust cover (12) is connected to the fixed end of the driving component (5) via a clamp (13), and the other end of the first dust cover (12) is connected to the free end of the extended end.

8. The quick unloading device for preventing concrete overflow according to claim 1, characterized in that: A sealing assembly (11) is provided on the side of the second main board (4) facing away from the first main board (1).

9. A quick unloading device for preventing concrete overflow according to claim 8, characterized in that: The sealing component (11) is made of elastic material.

10. The quick unloading device for preventing concrete overflow according to claim 1, characterized in that: The connecting hose (2) is connected to the first main board (1) and the second main board (4) by means of a pressure plate (3) and bolts.

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