Gravel weighing hopper
By installing cleaning components in the sand and gravel weighing hopper, including scrapers and push rods, the problem of residual sand and gravel in the inner wall of the weighing hopper is solved, and the accuracy of the cutting and the quality of concrete are improved.
Patent Information
- Application Number
- CN202421502182.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-06-27
AI Technical Summary
When the existing sand and gravel weighing hopper is unloaded, some sand and gravel will remain on the inner wall of the weighing hopper, resulting in inaccurate weight of the feed and affecting the quality of the concrete mix.
A cleaning component is provided in the weighing hopper, including a scraper and a push rod. The scraper abuts the inner wall of the weighing hopper. The push rod can push the scraper to slide along the inner wall of the weighing hopper, and the cleaning component can effectively scrape sand and gravel on the inner wall.
By cleaning the components, the residue of sand and gravel during cutting is avoided, and the accuracy and quality of concrete mixing is improved.
Smart Images
Figure CN222892453U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of weighing hoppers, and in particular to a sand and gravel weighing hopper. Background Art
[0002] Currently, when producing concrete, raw materials such as sand and gravel are stored in a storage bin in a warehouse. When sand and gravel are needed, they are discharged from the bottom using a weighing hopper to mix and form concrete.
[0003] During the use of the current sand and gravel weighing hopper, the sand and gravel are first transported to the feed hopper through the sand and gravel, and then enter the weighing hopper through the valve of the feed hopper. The sand and gravel are weighed according to production requirements. When the weight is reached, the valve of the feed hopper is closed, and the valve at the bottom of the weighing hopper is opened to drop the weighed sand and gravel onto the conveying device before proceeding to the next step.
[0004] With regard to the above-mentioned related technologies, when the weighing hopper discharges materials, some sand and gravel will remain on the inner wall of the weighing hopper, resulting in inaccurate weight of the materials discharged from the weighing hopper, thus affecting the quality of concrete mixing. Utility Model Content
[0005] In order to ensure the adequacy of material discharge and improve the accuracy of the weight of the material discharge, the present application provides a sand and gravel weighing hopper.
[0006] The sand and gravel weighing hopper provided in this application adopts the following technical solution:
[0007] A sand and gravel weighing hopper comprises a frame, wherein the frame is provided with a feed hopper and a weighing hopper, the feed hopper is located directly above the weighing hopper, a cleaning assembly is arranged in the weighing hopper, the cleaning assembly comprises a scraper, the scraper is arranged inside the weighing hopper and abuts against the inner wall of the weighing hopper, the scraper is provided with a push rod, the push rod pushes the scraper to slide along the inner wall of the weighing hopper, and the scraper cleans the inner wall of the weighing hopper.
[0008] By adopting the above technical solution, a cleaning component is arranged in the weighing hopper, the cleaning component includes a scraper, the scraper abuts against the inner wall of the weighing hopper, the scraper is connected to a push rod, and the push rod can push the scraper to slide along the inner wall of the weighing hopper, thereby scraping off the sand and gravel on the inner wall, avoiding the residue of sand and gravel when unloading, and improving the accuracy and quality of concrete mixing.
[0009] Optionally, the scraper includes two fixed plates and two telescopic plates, and the two fixed plates and the two telescopic plates are arranged at intervals and connected end to end to form the scraper; the telescopic plate includes two fixed parts and a telescopic part, and the two fixed parts are respectively located at two ends of the telescopic part, and the two fixed parts are provided with placement grooves matching the telescopic parts along their own length directions near one end of the telescopic part, and the two ends of the telescopic part slide in the two placement grooves respectively to realize the extension and retraction of the telescopic plate, and the telescopic part and the fixed part are always in contact with the inner wall of the weighing hopper.
[0010] By adopting the above technical solution, the scraper is configured to include two fixed plates and two telescopic plates, the two fixed plates and the two telescopic plates are connected end to end to form a scraper, and the two telescopic plates are both telescopic, so that the scraper can adapt to the side wall of the weighing funnel-shaped hopper.
[0011] Optionally, springs are fixedly connected to both ends of the telescopic part, one end of the spring is fixedly connected to the placement groove, and the other end is fixedly connected to the telescopic part.
[0012] By adopting the above technical solution, when the scraper moves upward along the side wall of the weighing hopper, the elastic force of the spring can push the fixed parts on both sides of the telescopic part to move away from each other, so that the telescopic part extends out of the placement slot, thereby keeping the telescopic part in close contact with the inner wall of the weighing hopper at all times.
[0013] Optionally, the telescopic part is provided with a sliding block, and the fixed part is provided with a sliding groove, the sliding groove is opened along the length direction of the fixed part, the sliding groove is connected to the placement groove, and the cooperation between the sliding block and the sliding groove can limit the separation of the telescopic part and the fixed part.
[0014] By adopting the above technical solution, the cooperation between the sliding block and the sliding groove can effectively limit the excessive separation of the telescopic part and the fixed part, ensuring that the telescopic part will not fall off in the placement groove, thereby ensuring the stability and reliability of the scraper.
[0015] Optionally, the lower end surface of the scraper is inclined from top to bottom toward the side wall close to the weighing hopper; the upper end surface of the scraper is inclined from top to bottom toward the side wall away from the weighing hopper.
[0016] By adopting the above technical solution, the inclined design of the lower end surface of the scraper enables the scraper to scrape off the sand and gravel more effectively when it is pushed downward. At the same time, the inclined design of the upper end surface of the scraper can reduce the resistance between the scraper and the sand and gravel during the upward process, making the movement of the scraper smoother and realizing the secondary cleaning of the side wall of the weighing hopper.
[0017] Optionally, an extension line of the push rod can intersect with a side wall of the weighing hopper on the same side.
[0018] By adopting the above technical solution, when the push rod pushes the scraper, it can give the scraper a force close to the side wall of the weighing hopper, ensuring that the scraper always maintains close contact with the side wall of the weighing hopper, thereby more effectively scraping off the sand and gravel remaining on the side wall.
[0019] Optionally, the scraper is provided with a clearance groove at a position corresponding to the push rod, and a connecting block is hinged at the end of the push rod. When the push rod is extended or retracted, the connecting block slides in the clearance groove.
[0020] By adopting the above technical solution, the design of the give way groove ensures that the push rod can smoothly push the scraper, and avoids the movement interference between the two, thereby ensuring the reliability and practicality of the push rod when pushing the scraper.
[0021] Optionally, a dust cover is provided above the connecting block, and when the connecting block slides, the dust cover always covers the clearance groove.
[0022] By adopting the above technical solution, the provision of the dust cover can effectively prevent sand and gravel and other debris from entering the clearance groove, affecting the sliding of the connecting block in the clearance groove, and further affecting the normal operation of the push rod and the scraper.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. By arranging a cleaning assembly in the weighing hopper, the cleaning assembly includes a scraper, the scraper abuts against the inner wall of the weighing hopper, and the scraper is connected to a push rod, which can push the scraper to slide along the inner wall of the weighing hopper, thereby scraping off the sand and gravel on the inner wall, avoiding the residue of sand and gravel when unloading, and improving the accuracy and quality of concrete mixing;
[0025] 2. The scraper is configured to include two fixed plates and two telescopic plates, the two fixed plates are connected end to end with the two telescopic plates to form a scraper, and both telescopic plates are retractable, so that the scraper can adapt to the side wall of the weighing funnel-shaped hopper;
[0026] 3. The inclined design of the scraper's lower end surface enables the scraper to scrape off the sand and gravel more effectively when it is pushed downward. At the same time, the inclined design of the scraper's upper end surface can reduce the resistance between the scraper and the sand and gravel during the upward process, making the scraper's movement smoother and realizing the secondary cleaning of the side wall of the weighing hopper. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.
[0028] Figure 2 It is a cross-sectional view of the embodiment of the present application highlighting the cleaning component.
[0029] Figure 3 It is a cross-sectional view of the protruding placement groove of the embodiment of the present application.
[0030] Explanation of the reference numerals: 1. frame; 11. feed hopper; 12. weighing hopper; 2. cleaning assembly; 21. fixing plate; 211. clearance groove; 22. telescopic plate; 221. fixing part; 222. placement groove; 223. sliding groove; 224. telescopic part; 225. sliding block; 23. spring; 24. push rod; 241. connecting block; 242. dust cover; 3. hanging ear. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-3 This application is described in further detail.
[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.
[0034] The present application embodiment discloses a sand and gravel weighing hopper. Figure 1 A sandstone weighing hopper 12 includes a frame 1, and the frame 1 is provided with a feed hopper 11 and a weighing hopper 12. Both the feed hopper 11 and the weighing hopper 12 are provided with a feed port and a discharge port. The feed hopper 11 is located directly above the weighing hopper 12, and the stones in the feed hopper enter the weighing hopper 12 for weighing. A cleaning component 2 is provided in the weighing hopper 12, and the weighed stones are discharged through the discharge port of the weighing hopper 12. After the discharge is completed, the cleaning component 2 is started to clean the inner wall of the weighing hopper 12, and the adhered stones are scraped off. The scraped stones are discharged through the discharge port, so as to achieve sufficient discharge and improve the accuracy of the weight of the discharged materials.
[0035] Reference Figure 2 The cleaning assembly 2 includes a scraper, and the scraper includes two fixed plates 21 and two telescopic plates 22. The two fixed plates 21 and the two telescopic plates 22 are arranged at intervals and connected end to end, and are fixed by a connecting piece to form a scraper. The scraper is arranged inside the weighing hopper 12 and abuts against the inner wall of the weighing hopper 12.
[0036] Reference Figure 2 The telescopic plate 22 includes two fixed parts 221 and a telescopic part 224. The two fixed parts 221 are respectively located at the two ends of the telescopic part 224. The two fixed parts 221 are close to one end of the telescopic part 224, and are provided with placement grooves 222 matching the telescopic part 224 along their own length direction. The two ends of the telescopic part 224 slide in the two placement grooves 222 respectively to realize the telescopic function of the telescopic plate 22. No matter how the telescopic plate 22 is extended or retracted, the telescopic part 224 and the fixed part 221 are always in contact with the inner wall of the weighing hopper 12. When the scraper moves downward along the side wall of the weighing hopper 12, the side wall of the weighing hopper 12 squeezes the fixed plates 21 on both sides to make the telescopic plate 22 shrink.
[0037] Reference Figure 2 The two ends of the telescopic part 224 are fixed with springs 23, one end of the spring 23 is fixed in the placement groove 222, and the other end is fixed to the telescopic part 224. When the scraper moves upward along the side wall of the weighing hopper 12, the elastic force of the spring 23 can push the fixed parts 221 on both sides of the telescopic part 224 to move away from each other, so that the telescopic part 224 extends out of the placement groove 222, and then the telescopic part 224 always keeps close contact with the inner wall of the weighing hopper 12.
[0038] Reference Figure 3 In order to limit the separation of the telescopic part 224 from the fixed part 221, the telescopic part 224 is also fixed with a sliding block 225, and the fixed part 221 is provided with a sliding groove 223. The sliding groove 223 is provided along the length direction of the fixed part 221 and is connected to the placement groove 222. The cooperation of the sliding block 225 and the sliding groove 223 can effectively limit the excessive separation of the telescopic part 224 from the fixed part 221, thereby ensuring the stability and reliability of the scraper.
[0039] Furthermore, the lower end surface of the scraper is inclined from top to bottom toward the side wall close to the weighing hopper 12. This design enables the scraper to scrape sand and gravel more effectively when it is pushed downward. At the same time, the upper end surface of the scraper is also inclined, and the upper end surface is inclined from top to bottom toward the side wall away from the weighing hopper 12. This design can reduce the resistance between the scraper and the sand and gravel during the upward process, making the movement of the scraper smoother, and at the same time achieving secondary cleaning of the side wall of the weighing hopper 12.
[0040] Reference Figure 2The scraper is provided with two electric push rods 24, which are respectively fixed to both sides of the weighing hopper 12. The electric push rods 24 include push rods 24, which are connected to the fixed plate 21. The push rods 24 can push the scraper to slide along the inner wall of the weighing hopper 12 so as to clean the inner wall of the weighing hopper 12.
[0041] The extension line of the push rod 24 along its length direction can intersect with the side wall of the weighing hopper 12 on the same side. This means that when the push rod 24 pushes the scraper, it can give the scraper a force close to the side wall of the weighing hopper 12, ensuring that the scraper always maintains close contact with the side wall of the weighing hopper 12, thereby more effectively scraping off the sand and gravel remaining on the side wall.
[0042] Reference Figure 3 The fixing plate 21 is provided with a clearance groove 211 at a position corresponding to the push rod 24, and a connecting block 241 is hinged at the end of the push rod 24. When the push rod 24 performs telescopic movement, the connecting block 241 will slide accordingly in the clearance groove 211. Such a design ensures that the push rod 24 can smoothly push the scraper and avoids motion interference between the two.
[0043] Reference Figure 3 In order to further improve the reliability and safety of the equipment, a dust cover 242 is provided above the connecting block 241. No matter how the connecting block 241 slides in the clearance groove 211, the dust cover 242 can always cover the clearance groove 211, thereby effectively preventing debris such as sand and gravel from entering the clearance groove 211 and affecting the normal operation of the push rod 24 and the scraper.
[0044] Further, see Figure 3 A plurality of hanging ears 3 are fixedly connected to the outer surface of the weighing hopper 12. After long-term use, corrosion may occur on the surface of the weighing hopper 12, making the overall weight of the weighing hopper 12 lighter. At this time, the weight can be compensated by hanging weights of corresponding weight on the hanging ears 3 without adjusting the weighing system.
[0045] The implementation principle of a sand and gravel weighing hopper 12 in an embodiment of the present application is as follows: when using the sand and gravel weighing hopper 12 of the present application, the feed hopper 11 first conveys the sand and gravel into the weighing hopper 12. According to production requirements, the sand and gravel are accurately weighed. Once the preset weight is reached, the feeding hopper 11 stops feeding, and the feeding port at the bottom of the weighing hopper 12 is opened to release the weighed sand and gravel to the conveying device of the next link. In this process, by starting the cleaning component 2, the push rod 24 is used to push the scraper to slide along the inner wall of the weighing hopper 12, and the scraper effectively scrapes off the sand and gravel remaining on the inner wall to ensure the accuracy of feeding.
[0046] The embodiments of the present application have the effect of ensuring the adequacy of material discharge and improving the accuracy of the weight of the material discharge.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A sand and gravel weighing hopper (12), characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a feed hopper (11) and a weighing hopper (12), wherein the feed hopper (11) is located directly above the weighing hopper (12), wherein a cleaning assembly (2) is arranged inside the weighing hopper (12), wherein the cleaning assembly (2) comprises a scraper, wherein the scraper is arranged inside the weighing hopper (12) and abuts against the inner wall of the weighing hopper (12), wherein the scraper is provided with a push rod (24), wherein the push rod (24) pushes the scraper to slide along the inner wall of the weighing hopper (12), and wherein the scraper cleans the inner wall of the weighing hopper (12); The scraper comprises two fixed plates (21) and two telescopic plates (22), wherein the two fixed plates (21) and the two telescopic plates (22) are arranged at intervals and connected end to end to form the scraper; The telescopic plate (22) comprises two fixed parts (221) and a telescopic part (224), the two fixed parts (221) are respectively located at the two ends of the telescopic part (224), and the two fixed parts (221) are provided with placement grooves (222) matching the telescopic part (224) along their own length direction near one end of the telescopic part (224), and the two ends of the telescopic part (224) slide in the two placement grooves (222) respectively to realize the telescopic movement of the telescopic plate (22), and the telescopic part (224) and the fixed part (221) are always in contact with the inner wall of the weighing hopper (12); springs (23) are fixedly connected to the two ends of the telescopic part (224), one end of the spring (23) is fixedly connected to the placement groove (222), and the other end is fixedly connected to the telescopic part (224).
2. A sand and gravel weighing hopper (12) according to claim 1, characterized in that: The telescopic portion (224) is provided with a sliding block (225), and the fixed portion (221) is provided with a sliding groove (223). The sliding groove (223) is opened along the length direction of the fixed portion (221), and the sliding groove (223) is connected to the placement groove (222). The cooperation between the sliding block (225) and the sliding groove (223) can limit the separation of the telescopic portion (224) and the fixed portion (221).
3. A sand and gravel weighing hopper (12) according to claim 1, characterized in that: The lower end surface of the scraper is inclined from top to bottom toward the side wall close to the weighing hopper (12); and the upper end surface of the scraper is inclined from top to bottom toward the side wall away from the weighing hopper (12).
4. A sand and gravel weighing hopper (12) according to claim 1, characterized in that: An extension line of the push rod (24) can intersect with a side wall of the weighing hopper (12) on the same side.
5. A sand and gravel weighing hopper (12) according to claim 4, characterized in that: The scraper is provided with a clearance groove (211) at a position corresponding to the push rod (24); a connecting block (241) is hingedly connected to the end of the push rod (24); and when the push rod (24) is extended or retracted, the connecting block (241) slides in the clearance groove (211).
6. A sand and gravel weighing hopper (12) according to claim 5, characterized in that: A dust cover (242) is provided above the connection block (241); when the connection block (241) slides, the dust cover (242) always covers the clearance groove (211).