Concrete self-discharging pouring device for curb backrest
By designing a curb backrest concrete self-dumping pouring device, the inclined setting and adjustable baffle are used to realize self-dumping pouring of concrete, which solves the problems of low construction efficiency, long time and high cost in the existing technology, and achieves efficient and economical construction results.
Patent Information
- Application Number
- CN202421567996.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In the pouring process of curb backrest concrete, the prior art has problems of low construction efficiency, long time and high cost, especially due to manual push and unloading, the concrete quality is easily affected.
A curb backrest concrete self-dumping pouring device is designed, including a concrete tank owner unloading hopper, secondary outgoing hopper, front connecting plate, rear connecting plate and baffle. The concrete self-dumping pouring is achieved through inclined settings and adjustable baffle.
The device can improve construction efficiency, save construction time, reduce construction costs, and is cleverly designed, simple in structure and easy to manufacture, and is suitable for large-scale promotion and application.
Smart Images
Figure CN222834690U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to the technical field of curbstone back concrete pouring, and specifically refers to a curbstone back concrete self-unloading pouring device. Background Art
[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roof engineering construction, decoration engineering construction, etc.
[0003] In the process of pouring concrete for the curbstone backrest in construction, the concrete in the concrete tank truck is usually unloaded into the hopper truck, which is then manually pushed to the curb. Then, a shovel is used for manual unloading to carry out the curbstone backrest concrete construction. This method can only be carried out in small sections, with an extremely slow speed, easily forming cold joints, affecting the quality of the concrete, and consuming high labor costs.
[0004] Therefore, it is hoped to provide a curbstone backrest concrete self-unloading pouring device, which can realize the self-unloading pouring of curbstone backrest concrete by a concrete tank truck, thereby improving construction efficiency, saving construction time and reducing construction costs. Utility Model Content
[0005] In order to overcome the shortcomings of the above-mentioned prior art, one purpose of the utility model is to provide a self-unloading concrete pouring device for curbstone backrests, which can realize the self-unloading pouring of curbstone backrest concrete by concrete tank trucks, thereby improving construction efficiency, saving construction time and reducing construction costs, and is suitable for large-scale promotion and application.
[0006] Another object of the utility model is to provide a curbstone backrest concrete self-unloading pouring device, which has a clever design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.
[0007] In order to achieve the above purpose, the utility model provides a curbstone backrest concrete self-unloading pouring device, comprising a main unloading hopper of a concrete tank truck, the main unloading hopper of the concrete tank truck is tilted in the left and right directions, the left end of the main unloading hopper of the concrete tank truck is higher than the right end of the main unloading hopper of the concrete tank truck, and the top surface of the main unloading hopper of the concrete tank truck is provided with a main unloading groove along the tilting direction of the main unloading hopper of the concrete tank truck, and the characteristic is that the curbstone backrest concrete self-unloading pouring device also includes an auxiliary discharge hopper, a front connecting plate, a rear connecting plate and a baffle, wherein:
[0008] The auxiliary discharge hopper is arranged along the inclined direction of the main discharge hopper of the concrete tank truck, and an auxiliary discharge groove is arranged on the top surface of the auxiliary discharge hopper along the inclined direction of the main discharge hopper of the concrete tank truck. The left end of the auxiliary discharge hopper is detachably connected to the right end of the main discharge hopper of the concrete tank truck, and the left end of the auxiliary discharge groove is connected to the right end of the main discharge groove. The front connecting plate and the rear connecting plate are both arranged vertically and along the inclined direction of the main discharge hopper of the concrete tank truck and are spaced from each other front to back. The left end of the front connecting plate and the left end of the rear connecting plate are respectively located in front and back of the right end of the auxiliary discharge hopper and are both connected to the right end of the auxiliary discharge hopper. The baffle is arranged vertically and along the front-to-back direction. The middle part of the baffle is located between the right end of the front connecting plate and the right end of the rear connecting plate and is respectively connected to the right end of the front connecting plate and the right end of the rear connecting plate, and is respectively arranged to be adjustable in rotation angle around the front-to-back direction relative to the right end of the front connecting plate and the right end of the rear connecting plate.
[0009] Preferably, the main unloading hopper of the concrete tank truck is a U-shaped hopper.
[0010] Preferably, the curbstone backrest concrete self-unloading pouring device also includes a front hanging ear, a rear hanging ear, a front connecting hook and a rear connecting hook, the right end of the main unloading hopper of the concrete tank truck is inserted into the left end of the auxiliary unloading groove along the inclination direction of the main unloading hopper of the concrete tank truck, the front hanging ear and the rear hanging ear are both arranged along the front-to-back direction and along the inclination direction of the main unloading hopper of the concrete tank truck and are spaced apart from each other front to back, the front hanging ear and the rear hanging ear are respectively located front and back of the right end of the main unloading hopper of the concrete tank truck and are both connected to the right end of the main unloading hopper of the concrete tank truck, the front connecting hook and the rear connecting hook are spaced apart from each other front to back, one end of the front connecting hook and one end of the rear connecting hook are respectively located front and back of the left end of the auxiliary discharging hopper and are both rotatably connected to the left end of the auxiliary discharging hopper around the front-to-back direction, and the other end of the front connecting hook and the other end of the rear connecting hook are respectively hooked in the front hanging ear and the rear hanging ear.
[0011] Preferably, the auxiliary discharge hopper is a U-shaped hopper.
[0012] Preferably, the auxiliary discharge hopper is a retractable hopper, and the retractable hopper is retractably arranged along the inclined direction of the main discharge hopper of the concrete tank truck.
[0013] Preferably, the curbstone backrest concrete self-unloading pouring device also includes a front limit ring, a rear limit ring, a front limit hook and a rear limit hook, the middle part of the baffle plate is rotatable around the front and rear directions to connect the right end of the front connecting plate and the right end of the rear connecting plate, the front limit ring and the rear limit ring are both horizontally arranged and spaced apart from each other front and back, the front limit ring and the rear limit ring are respectively located in front and behind the baffle plate and are both connected to the baffle plate and are respectively higher than the right end of the front connecting plate and the right end of the rear connecting plate, the number of the front limit rings is multiple, and the multiple front limit rings The rings are arranged vertically at intervals from each other, the number of the rear limit rings is the same as the number of the front limit rings, the rear limit rings and the front limit rings are arranged one-to-one, the front limit hook and the rear limit hook are arranged front to back at intervals from each other, one end of the front limit hook and one end of the rear limit hook are respectively rotatably connected to the middle part of the front connecting plate and the middle part of the rear connecting plate around the front and back directions, and the other end of the front limit hook and the other end of the rear limit hook are respectively hooked in one of the front limit rings and the rear limit ring corresponding to the one of the front limit rings.
[0014] More preferably, the number of the front limiting rings is 3.
[0015] More preferably, the front limiting ring and the rear limiting ring are both circular rings.
[0016] Preferably, the front connecting plate and the rear connecting plate are both steel plates.
[0017] Preferably, the main discharge hopper and the auxiliary discharge hopper of the concrete tank truck are both iron hoppers.
[0018] The beneficial effects of the utility model are mainly:
[0019] 1. When the curb stone backrest concrete self-unloading pouring device of the utility model is in use, the left end of the auxiliary discharging hopper is detachably connected to the main discharging hopper of the concrete tank truck, that is, the right end of the main discharging hopper of the concrete tank truck, the baffle is placed on the right side of the curb stone, and the middle part of the baffle is adjusted to rotate around the front and rear directions relative to the right ends of the front connecting plate and the rear connecting plate, so as to adjust the opening and closing angle of the baffle, and the lower end of the baffle is pressed against the ground. Then, concrete flows out from the concrete outlet of the concrete hopper of the concrete tank truck, flows through the main discharging groove of the main discharging hopper of the concrete tank truck and the auxiliary discharging groove of the auxiliary discharging hopper, and then flows down from the gap between the right end of the auxiliary discharging groove and the baffle to pour the curb stone backrest concrete. Therefore, it can realize the self-unloading pouring of the curb stone backrest concrete by the concrete tank truck, thereby improving the construction efficiency, saving the construction time and reducing the construction cost, and is suitable for large-scale promotion and application.
[0020] 2. When the curbstone backrest concrete self-unloading pouring device of the utility model is used, the left end of the auxiliary discharge hopper is detachably connected to the main discharge hopper of the concrete tank truck, that is, the right end of the main discharge hopper of the concrete tank truck, the baffle is placed on the right side of the curbstone, and the middle part of the baffle is adjusted to rotate around the right end of the front connecting plate and the right end of the rear connecting plate in the front and rear directions, so as to adjust the opening and closing angle of the baffle, and the lower end of the baffle is placed against the ground, and then the concrete flows out from the concrete outlet of the concrete hopper of the concrete tank truck, flows through the main discharge groove of the main discharge hopper of the concrete tank truck and the auxiliary discharge groove of the auxiliary hopper, and then flows down from the gap between the right end of the auxiliary discharge groove and the baffle to pour the curbstone backrest concrete. Therefore, it has ingenious design, simple structure, simple manufacturing, low manufacturing cost, and is suitable for large-scale promotion and application.
[0021] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and drawings, and can be achieved by the means, devices and their combinations specifically pointed out in the content of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional schematic diagram of a specific embodiment of the curbstone backrest concrete self-unloading pouring device of the utility model.
[0023] Figure 2 yes Figure 1 The specific embodiment shown is a partial enlarged schematic diagram Figure 1 .
[0024] Figure 3 yes Figure 1 The specific embodiment shown is a partial enlarged schematic diagram Figure 2 .
[0025] Figure 4 yes Figure 1 A three-dimensional schematic diagram of a usage scenario of the specific embodiment shown.
[0026] (Explanation of symbols)
[0027] 1 Main unloading hopper of concrete tanker; 2 Auxiliary unloading hopper; 3 Front connecting plate; 4 Rear connecting plate; 5 Baffle; 6 Main unloading groove; 7 Auxiliary unloading groove; 8 Front hanging ear; 9 Rear hanging ear; 10 Front connecting hook; 11 Rear connecting hook; 12 Front limiting ring; 13 Rear limiting ring; 14 Front limiting hook; 15 Rear limiting hook; 16 Concrete tanker; 17 Concrete bucket; 18 Curbstone; 19 Curbstone backrest concrete. DETAILED DESCRIPTION
[0028] In order to more clearly understand the technical content of the present invention, the following embodiments are given in detail.
[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are 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, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0030] See also Figure 1 to Figure 3 As shown, in a specific embodiment of the utility model, the curbstone backrest concrete self-unloading pouring device of the utility model comprises a main unloading hopper 1 of a concrete tank truck, an auxiliary discharge hopper 2, a front connecting plate 3, a rear connecting plate 4 and a baffle 5, wherein:
[0031] The main discharge hopper 1 of the concrete tank truck is tilted in the left-right direction, the left end of the main discharge hopper 1 of the concrete tank truck is higher than the right end of the main discharge hopper 1 of the concrete tank truck, and the top surface of the main discharge hopper 1 of the concrete tank truck is provided with a main discharge groove 6 along the tilting direction of the main discharge hopper 1 of the concrete tank truck;
[0032] The auxiliary discharge hopper 2 is arranged along the inclined direction of the main discharge hopper 1 of the concrete tank truck, and the top surface of the auxiliary discharge hopper 2 is provided with an auxiliary discharge groove 7 along the inclined direction of the main discharge hopper 1 of the concrete tank truck. The left end of the auxiliary discharge hopper 2 is detachably connected to the right end of the main discharge hopper 1 of the concrete tank truck, and the left end of the auxiliary discharge groove 7 is connected to the right end of the main discharge groove 6. The front connecting plate 3 and the rear connecting plate 4 are both arranged vertically and are both arranged along the inclined direction of the main discharge hopper 1 of the concrete tank truck and are spaced from each other front to back. The left end of the front connecting plate 3 and the left end of the rear connecting plate 4 are respectively located in front and behind the right end of the auxiliary discharge hopper 2 and are both connected to the right end of the auxiliary discharge hopper 2. The baffle 5 is vertically arranged and arranged along the front-to-back direction. The middle part of the baffle 5 is located between the right end of the front connecting plate 3 and the right end of the rear connecting plate 4 and are respectively connected to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4 and are respectively arranged to be adjustable in angle around the front-to-back direction relative to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4.
[0033] The main discharge hopper 1 of the concrete tank truck can have any suitable shape, see Figure 1-2 As shown, in a specific embodiment of the present utility model, the main discharge hopper 1 of the concrete tank truck is a U-shaped hopper. That is, the cross section of the main discharge groove 6 is U-shaped.
[0034] The left end of the auxiliary discharge hopper 2 can be detachably connected to the right end of the main discharge hopper 1 of the concrete tank truck, and any suitable structure can be adopted. Figure 1-2As shown, in a specific embodiment of the utility model, the curbstone backrest concrete self-unloading pouring device also includes a front hanging ear 8, a rear hanging ear 9, a front connecting hook 10 and a rear connecting hook 11, the right end of the main unloading hopper 1 of the concrete tanker is inserted into the left end of the auxiliary unloading groove 7 along the inclination direction of the main unloading hopper 1 of the concrete tanker, the front hanging ear 8 and the rear hanging ear 9 are both arranged along the front-to-back direction and along the inclination direction of the main unloading hopper 1 of the concrete tanker and are spaced apart from each other front and back, and the front hanging ear 8 and the rear hanging ear 9 are respectively arranged along the front-to-back direction and along the inclination direction of the main unloading hopper 1 of the concrete tanker. The front connecting hook 10 and the rear connecting hook 11 are respectively located in front and behind the right end of the main discharge hopper 1 of the concrete tanker and are both connected to the right end of the main discharge hopper 1 of the concrete tanker. The front connecting hook 10 and the rear connecting hook 11 are arranged at intervals from each other in front and back. One end of the front connecting hook 10 and one end of the rear connecting hook 11 are respectively located in front and behind the left end of the auxiliary discharge hopper 2 and are both rotatably connected to the left end of the auxiliary discharge hopper 2 around the front and back directions. The other end of the front connecting hook 10 and the other end of the rear connecting hook 11 are respectively hooked in the front hanging ear 8 and the rear hanging ear 9. With the above arrangement, when it is necessary to detachably connect the left end of the auxiliary discharge hopper 2 to the right end of the main discharge hopper 1 of the concrete tanker, the left end of the auxiliary discharge groove 7 is sleeved under the right end of the main discharge hopper 1 of the concrete tanker along the tilting direction of the main discharge hopper 1 of the concrete tanker, and the other end of the front connecting hook 10 and the other end of the rear connecting hook 11 are respectively hooked in the front hanging ear 8 and the rear hanging ear 9.
[0035] The auxiliary discharge hopper 2 can have any suitable shape, see Figure 1 to Figure 3 As shown, in a specific embodiment of the present utility model, the auxiliary discharge hopper 2 is a U-shaped hopper. That is, the cross section of the auxiliary discharge groove 7 is U-shaped.
[0036] The auxiliary discharge hopper 2 can be a retractable hopper or a non-retractable hopper. In order to improve the adaptability of the utility model, in a specific embodiment of the utility model, the auxiliary discharge hopper 2 is a retractable hopper, and the retractable hopper is retractably arranged along the tilting direction of the main discharge hopper 1 of the concrete tank truck. Therefore, the length of the auxiliary discharge hopper 2 can be adjusted according to actual conditions.
[0037] The middle part of the baffle plate 5 is connected to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4 respectively and is adjustable in rotation angle around the front and rear directions relative to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4. Any suitable structure can be adopted. Figure 1 and Figure 3As shown, in a specific embodiment of the utility model, the curbstone backrest concrete self-unloading pouring device also includes a front limit ring 12, a rear limit ring 13, a front limit hook 14 and a rear limit hook 15, the middle part of the baffle 5 is rotatably connected to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4 around the front and rear directions, the front limit ring 12 and the rear limit ring 13 are both horizontally arranged and spaced apart from each other front and back, the front limit ring 12 and the rear limit ring 13 are respectively located in front and back of the baffle 5 and are both connected to the baffle 5 and are respectively higher than the right end of the front connecting plate 3 and the right end of the rear connecting plate 4, the number of the front limit rings 12 is multiple, and the number of the multiple The front limit rings 12 are vertically spaced apart from each other, the number of the rear limit rings 13 is the same as the number of the front limit rings 12, the rear limit rings 13 and the front limit rings 12 are arranged one by one, the front limit hooks 14 and the rear limit hooks 15 are spaced apart from each other front to back, one end of the front limit hook 14 and one end of the rear limit hook 15 are rotatably connected to the middle part of the front connecting plate 3 and the middle part of the rear connecting plate 4 around the front and rear directions respectively, the other end of the front limit hook 14 and the other end of the rear limit hook 15 are respectively hooked in one of the front limit rings 12 and the rear limit ring 13 corresponding to the one of the front limit rings 12.
[0038] By adopting the above-mentioned arrangement, when it is necessary to adjust the rotation angle of the middle part of the baffle plate 5 relative to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4 around the front-to-back direction, the other end of the front limit hook 14 and the other end of the rear limit hook 15 are respectively withdrawn from one of the front limit rings 12 and the rear limit ring 13 corresponding to one of the front limit rings 12, and are no longer hooked in one of the front limit rings 12 and the rear limit ring 13 corresponding to one of the front limit rings 12, and then the middle part of the baffle plate 5 is rotated relative to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4 around the front-to-back direction to the desired position, and the other end of the front limit hook 14 and the other end of the rear limit hook 15 are respectively hooked in the other front limit ring 12 and the rear limit ring 13 corresponding to the other front limit ring 12.
[0039] The number of the front limiting rings 12 can be determined as required. Figure 3 As shown, in a specific embodiment of the present invention, the number of the front limiting rings 12 is three.
[0040] The front limiting ring 12 and the rear limiting ring 13 may have any suitable shape. In a specific embodiment of the present invention, the front limiting ring 12 and the rear limiting ring 13 are both circular rings.
[0041] The front connecting plate 3 and the rear connecting plate 4 can be plates made of any suitable material. In a specific embodiment of the present invention, the front connecting plate 3 and the rear connecting plate 4 are both steel plates.
[0042] The main discharge hopper 1 and the auxiliary discharge hopper 2 of the concrete tank truck can be hoppers made of any suitable material. In a specific embodiment of the present utility model, the main discharge hopper 1 and the auxiliary discharge hopper 2 of the concrete tank truck are both iron hoppers.
[0043] The main discharge hopper 1 of the concrete tank truck of the present invention is the main discharge hopper of the existing concrete tank truck 16. The main discharge hopper of the concrete tank truck 16 is arranged below the concrete outlet of the concrete hopper 17 of the concrete tank truck 16, and is used to receive the concrete flowing out of the concrete outlet of the concrete hopper 17 of the concrete tank truck 16. Under normal circumstances, the main discharge hopper of the concrete tank truck 16 is not connected to the auxiliary discharge hopper 2 of the present invention, but is used in combination with a pump truck, for example. When pouring the curbstone backrest concrete, please refer to Figure 4 As shown, the auxiliary discharge hopper 2 of the utility model is connected to the main discharge hopper of the concrete tank truck 16, that is, the main discharge hopper 1 of the concrete tank truck of the utility model. Specifically, the left end of the auxiliary discharge hopper 2 is detachably connected to the right end of the main discharge hopper 1 of the concrete tank truck, and the baffle 5 is placed on the right side of the curb 18. The middle part of the baffle 5 is adjusted to rotate around the front and rear directions relative to the right end of the front connecting plate 3 and the right end of the rear connecting plate 4, so as to adjust the opening and closing angle of the baffle 5, and the lower end of the baffle 5 is placed against the ground. Then, concrete flows out from the concrete outlet of the concrete hopper 17 of the concrete tank truck 16, flows through the main discharge groove 6 of the main discharge hopper 1 of the concrete tank truck and the auxiliary discharge hopper 2. The groove 7, then flows downward from the gap between the right end of the auxiliary discharge groove 7 and the baffle 5 to the position between the curb 18 and the lower end of the baffle 5, and the curb back concrete 19 is poured.
[0044] Compared with the prior art, the utility model has the following beneficial effects:
[0045] 1. The main discharge hopper of the concrete tank truck of the utility model is the main discharge hopper of the existing concrete tank truck, which can be directly used, and only the auxiliary discharge hopper, the front connecting plate, the rear connecting plate and the baffle plate and other parts need to be processed and manufactured.
[0046] 2. The raw materials for the auxiliary discharge hopper, front connecting plate, rear connecting plate and baffle are easy to find, the processing technology is simple, and they can be easily made on site.
[0047] 3. By controlling the opening and closing angle of the baffle, the range and height of the curbstone back concrete pouring can be easily achieved.
[0048] 4. The left end of the auxiliary discharge hopper can be detachably connected to the right end of the main discharge hopper of the concrete tank truck and can be freely disassembled. When the scene is not applicable, the auxiliary discharge hopper can be removed without affecting the use of the concrete tank truck and the pump truck.
[0049] 5. The utility model can easily realize the self-unloading pouring of curbstone back concrete by concrete tank trucks, thereby improving construction efficiency, saving construction time and reducing construction costs.
[0050] Therefore, the use of the utility model does not require large capital investment, and can be produced using a small amount of steel bars and iron plates on site as materials. The utility model is used to realize the self-unloading pouring function of concrete tank trucks in specific scenarios such as pouring narrow and long slabs and pavements. The concrete tank truck can realize the self-unloading pouring of curbstone backrest concrete, thereby improving construction efficiency, saving construction time and reducing construction costs.
[0051] In summary, the curbstone backrest concrete self-unloading pouring device of the utility model can realize the self-unloading pouring of curbstone backrest concrete by a concrete tank truck, thereby improving construction efficiency, saving construction time and reducing construction costs. It has a clever design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.
[0052] It can be seen that the purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods can be modified arbitrarily. Therefore, the utility model includes all modified implementation methods based on the spirit and scope of the claims.
Claims
1. A self-unloading concrete pouring device for a curbstone backrest, comprising a main unloading hopper of a concrete tanker, the main unloading hopper of the concrete tanker is tilted in the left-right direction, the left end of the main unloading hopper of the concrete tanker is higher than the right end of the main unloading hopper of the concrete tanker, and the top surface of the main unloading hopper of the concrete tanker is provided with a main unloading groove along the tilting direction of the main unloading hopper of the concrete tanker, characterized in that: The curbstone backrest concrete self-unloading pouring device also includes an auxiliary discharge hopper, a front connecting plate, a rear connecting plate and a baffle, wherein: The auxiliary discharge hopper is arranged along the inclined direction of the main discharge hopper of the concrete tank truck, and an auxiliary discharge groove is arranged on the top surface of the auxiliary discharge hopper along the inclined direction of the main discharge hopper of the concrete tank truck. The left end of the auxiliary discharge hopper is detachably connected to the right end of the main discharge hopper of the concrete tank truck, and the left end of the auxiliary discharge groove is connected to the right end of the main discharge groove. The front connecting plate and the rear connecting plate are both arranged vertically and along the inclined direction of the main discharge hopper of the concrete tank truck and are spaced from each other front to back. The left end of the front connecting plate and the left end of the rear connecting plate are respectively located in front and back of the right end of the auxiliary discharge hopper and are both connected to the right end of the auxiliary discharge hopper. The baffle is arranged vertically and along the front-to-back direction. The middle part of the baffle is located between the right end of the front connecting plate and the right end of the rear connecting plate and is respectively connected to the right end of the front connecting plate and the right end of the rear connecting plate, and is respectively arranged to be adjustable in rotation angle around the front-to-back direction relative to the right end of the front connecting plate and the right end of the rear connecting plate.
2. The curbstone backrest concrete self-unloading pouring device according to claim 1, characterized in that: The main unloading hopper of the concrete tank truck is a U-shaped hopper.
3. The curbstone backrest concrete self-unloading pouring device according to claim 1, characterized in that: The curbstone backrest concrete self-unloading pouring device also includes a front hanging ear, a rear hanging ear, a front connecting hook and a rear connecting hook, the right end of the main unloading hopper of the concrete tank truck is inserted into the left end of the auxiliary unloading groove along the inclination direction of the main unloading hopper of the concrete tank truck, the front hanging ear and the rear hanging ear are both arranged along the front-to-back direction and along the inclination direction of the main unloading hopper of the concrete tank truck and are spaced apart from each other front to back, the front hanging ear and the rear hanging ear are respectively located front and back of the right end of the main unloading hopper of the concrete tank truck and are both connected to the right end of the main unloading hopper of the concrete tank truck, the front connecting hook and the rear connecting hook are spaced apart from each other front to back, one end of the front connecting hook and one end of the rear connecting hook are respectively located front and back of the left end of the auxiliary discharging hopper and are both rotatably connected to the left end of the auxiliary discharging hopper around the front-to-back direction, and the other end of the front connecting hook and the other end of the rear connecting hook are respectively hooked in the front hanging ear and the rear hanging ear.
4. The curbstone backrest concrete self-unloading pouring device according to claim 1, characterized in that: The auxiliary discharge hopper is a U-shaped hopper.
5. The curbstone backrest concrete self-unloading pouring device according to claim 1, characterized in that: The auxiliary discharge hopper is a retractable hopper, and the retractable hopper is retractably arranged along the inclined direction of the main discharge hopper of the concrete tank truck.
6. The curbstone backrest concrete self-unloading pouring device according to claim 1, characterized in that: The curbstone backrest concrete self-unloading pouring device also includes a front limit ring, a rear limit ring, a front limit hook and a rear limit hook. The middle part of the baffle can be rotatably connected to the right end of the front connecting plate and the right end of the rear connecting plate around the front and rear directions respectively. The front limit ring and the rear limit ring are both horizontally arranged and spaced apart from each other front and back. The front limit ring and the rear limit ring are respectively located in front and behind the baffle and are both connected to the baffle and are respectively higher than the right end of the front connecting plate and the right end of the rear connecting plate. The number of the front limit rings is multiple, and the multiple front limit rings are vertically The rear limit rings are arranged at intervals from each other, the number of the rear limit rings is the same as the number of the front limit rings, the rear limit rings and the front limit rings are arranged one by one, the front limit hook and the rear limit hook are arranged at intervals from front to back, one end of the front limit hook and one end of the rear limit hook are respectively rotatable around the front and rear directions to connect the middle part of the front connecting plate and the middle part of the rear connecting plate, the other end of the front limit hook and the other end of the rear limit hook are respectively hooked in one of the front limit rings and the rear limit ring corresponding to the one of the front limit rings.
7. The curbstone backrest concrete self-unloading pouring device according to claim 6, characterized in that: The number of the front limiting rings is 3.
8. The curbstone backrest concrete self-unloading pouring device according to claim 6, characterized in that: The front limiting ring and the rear limiting ring are both circular rings.
9. The curbstone backrest concrete self-unloading pouring device according to claim 1, characterized in that: The front connecting plate and the rear connecting plate are both steel plates.
10. The curbstone back concrete self-unloading pouring device according to claim 1, characterized in that: The main discharge hopper and the auxiliary discharge hopper of the concrete tank truck are both iron hoppers.