An engineering cost drawing breaking mechanism

Abstract

The utility model discloses an engineering cost drawing crushing mechanism, including work tank, the top intercommunication of work tank has the crushing box, the left side fixedly connected with the grinding block of crushing box inner wall, the inside movable joint of crushing box has the grinding drum, the top fixedly connected with water tank of work tank. The utility model discloses an operator puts paper into the crushing box, then the operator starts the motor rotation and drives the grinding drum rotation, and the surface of grinding drum is provided with a large number of small thorn, and then the paper is irregularly crushed, and the crushed paper falls into the work tank, then the operator can start the water pump, so that the water in the water tank is sprayed through the nozzle, the operator can add the decoloring agent into the water tank, and then the pigment on the surface of the paper is decolorized, then the operator starts the motor rotation and drives the cutting blade rotation, and then the paper is cut, and the paper is mixed with water into paper pulp, and the device has the advantages of good crushing effect and high security.

Description

Technical Field

[0001] This utility model relates to the field of engineering cost drawings, specifically to a crushing mechanism for engineering cost drawings. Background Technology

[0002] Construction cost refers to the estimated or actual construction expenses incurred during the construction period of a project. Construction cost management is the process of predicting, planning, controlling, calculating, analyzing, and evaluating construction costs by comprehensively applying knowledge and skills from management, economics, and engineering technology. Furthermore, construction projects are typically represented by drawings. During the drawing process for construction cost estimates, repeated modifications and improvements to different data result in discarded drawings. To prevent the leakage of construction parameters, discarded drawings are usually shredded using a shredder to achieve confidentiality.

[0003] However, in practical applications, most paper shredders use blades to cut paper, resulting in strips of shredded paper. These strips often still contain clear data about the building structure. Furthermore, the shredded paper can be easily pieced back together, potentially leading to the leakage of engineering cost drawings. Therefore, it is necessary to redesign and modify the shredding mechanism for engineering cost drawings to effectively prevent poor shredding performance. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an engineering cost drawing shredding mechanism with the advantages of good shredding effect and high confidentiality. It solves the problem that most shredders use blade cutting when shredding paper, and the shredded paper is usually in strip form. The data of the building can still be clearly seen on the strips of paper. Moreover, it only takes a certain amount of time to piece the strips back together, which leads to the leakage of engineering cost drawing data.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crushing mechanism for engineering cost drawings, comprising a working box, a crushing box connected to the top of the working box, a grinding block fixedly connected to the left side of the inner wall of the crushing box, a grinding roller movably connected inside the crushing box, a water tank fixedly connected to the top of the working box, a water pump fixedly connected inside the water tank, a nozzle fixedly connected to the top of the inner wall of the working box, a first stirring rod and a second stirring rod movably connected to the top and bottom of the working box respectively, two of each, cutting blades fixedly connected to the surfaces of both the first and second stirring rods, the cutting blades on the surfaces of the first and second stirring rods being alternately arranged, driven wheels fixedly connected to the right side of both the first and second stirring rods, a motor fixedly connected to the right side of the working box and the back of the crushing box, a driving wheel provided on the right side of the working box, the output end of the motor fixedly connected to the driving wheel and the grinding roller respectively, the driving wheel and the driven wheel being connected by a synchronous belt drive, and a conveying pump fixedly connected inside the working box.

[0006] As a preferred embodiment of this invention, a protective cover is fixedly connected to the surface of the motor.

[0007] As a preferred embodiment of this utility model, a protective cover is fixedly connected to the right side of the work box, and the drive wheel, motor and driven wheel are all located inside the protective cover.

[0008] As a preferred embodiment of this invention, a flow guide is fixedly connected inside the crushing box.

[0009] As a preferred embodiment of this invention, a guide plate is fixedly connected inside the crushing box.

[0010] As a preferred embodiment of this invention, sound insulation felt is fixedly connected to the surfaces of both the working box and the crushing box.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model involves the operator placing paper into a crushing box, then starting a motor to rotate a grinding drum. The grinding drum has numerous small spikes on its surface, which irregularly crush the paper. The crushed paper falls into a working box, where the operator can then start a water pump to spray water from the tank through nozzles. The operator can add a decolorizing agent to the tank to decolorize the pigments on the paper surface. Finally, the operator starts a motor to rotate a cutting blade, which cuts the paper. The paper and water mix to form pulp. This device has the advantages of good crushing effect and high confidentiality.

[0013] 2. This utility model can protect the motor by setting up a protective cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the crushing box structure of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0018] In the diagram: 1. Working box; 2. Crushing box; 3. Grinding block; 4. Grinding drum; 5. Water tank; 6. Water pump; 7. Nozzle; 8. First stirring rod; 9. Second stirring rod; 10. Cutting blade; 11. Driven wheel; 12. Motor; 13. Drive wheel; 14. Protective cover; 15. Flow guide frame; 16. Flow guide plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 4As shown, a crushing mechanism for engineering cost drawings includes a working box 1, a crushing box 2 connected to the top of the working box 1, a grinding block 3 fixedly connected to the left side of the inner wall of the crushing box 2, a grinding roller 4 movably connected inside the crushing box 2, a water tank 5 fixedly connected to the top of the working box 1, a water pump 6 fixedly connected inside the water tank 5, a nozzle 7 fixedly connected to the top of the inner wall of the working box 1, and a first stirring rod 8 and a second stirring rod 9 movably connected to the top and bottom of the inside of the working box 1, respectively. There are two of each of the first stirring rod 8 and the second stirring rod 9. Cutting blades 10 are fixedly connected to the surfaces of the first stirring rod 8 and the second stirring rod 9. The cutting blades 10 on the surface of the first stirring rod 8 and the second stirring rod 9 are staggered. Driven wheels 11 are fixedly connected to the right side of the first stirring rod 8 and the right side of the second stirring rod 9. Motors 12 are fixedly connected to the right side of the working box 1 and the back of the crushing box 2. A drive wheel 13 is provided on the right side of the working box 1. The output end of the motor 12 is fixedly connected to the drive wheel 13 and the grinding drum 4 respectively. The drive wheel 13 and the driven wheel 11 are connected by a synchronous belt drive. A conveying pump is fixedly connected inside the working box 1.

[0021] refer to Figure 1 A protective cover is fixedly connected to the surface of motor 12.

[0022] As a technical optimization of this utility model, the protective cover can protect the motor 12.

[0023] refer to Figure 1 A protective cover 14 is fixedly connected to the right side of the work box 1. The drive wheel 13, motor 12 and driven wheel 11 are all located inside the protective cover 14.

[0024] As a technical optimization of this utility model, the protective cover 14 can prevent the operator from being injured by accidentally touching the driving wheel 13 or the driven wheel 11.

[0025] refer to Figure 2 and Figure 4 The crushing box 2 is fixedly connected to a flow guide 15.

[0026] As a technical optimization of this utility model, the paper can be guided by the flow guide 15 so that it can fall onto the surface of the grinding block 3.

[0027] refer to Figure 2 The crushing box 2 is fixedly connected to a flow guide plate 16.

[0028] As a technical optimization of this utility model, the guide plate 16 can guide the falling paper. The guide plate 16 is inclined, thereby preventing the paper from accumulating on the surface of the guide plate 16.

[0029] refer to Figures 1 to 4 Sound insulation felt is fixedly connected to the surfaces of both the working box 1 and the crushing box 2.

[0030] As a technical optimization of this utility model, the sound insulation felt can be installed to isolate the noise in the working box 1 and the crushing box 2, thereby achieving the effect of noise reduction.

[0031] The working principle and usage process of this utility model are as follows: When in use, the operator puts the paper into the crushing box 2, and then the operator starts the motor 12 to rotate, which drives the grinding roller 4 to rotate. The surface of the grinding roller 4 is provided with a large number of small barbs, which irregularly crushes the paper. The crushed paper falls into the working box 1. Then the operator can start the water pump 6, which makes the water in the water tank 5 spray out through the nozzle 7. The operator can add a decolorizing agent to the water tank 5 to decolorize the pigment on the surface of the paper. Then the operator starts the motor 12 to rotate, which drives the drive wheel 13 to rotate, which in turn drives the driven wheel 11 to rotate, which makes the first stirring rod 8 and the second stirring rod 9 rotate, which in turn drives the cutting blade 10 to rotate, thus cutting the paper. The paper and water are mixed into pulp, which is finally discharged from the working box 1 by the conveying pump.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crushing mechanism for engineering cost drawings, comprising a working box (1), characterized in that: The top of the working box (1) is connected to a crushing box (2). A grinding block (3) is fixedly connected to the left side of the inner wall of the crushing box (2). A grinding roller (4) is movably connected inside the crushing box (2). A water tank (5) is fixedly connected to the top of the working box (1). A water pump (6) is fixedly connected inside the water tank (5). A nozzle (7) is fixedly connected to the top of the inner wall of the working box (1). A first stirring rod (8) and a second stirring rod (9) are movably connected to the top and bottom of the working box (1), respectively. There are two of each of the first stirring rod (8) and the second stirring rod (9). The surfaces of the first stirring rod (8) and the second stirring rod (9) are fixedly connected to... Cutting blades (10), the cutting blades (10) on the surface of the first stirring rod (8) and the cutting blades (10) on the surface of the second stirring rod (9) are arranged alternately, driven wheels (11) are fixedly connected to the right side of the first stirring rod (8) and the right side of the second stirring rod (9), motors (12) are fixedly connected to the right side of the working box (1) and the back of the crushing box (2), a driving wheel (13) is provided on the right side of the working box (1), the output end of the motor (12) is fixedly connected to the driving wheel (13) and the grinding drum (4) respectively, the driving wheel (13) and the driven wheel (11) are connected by synchronous belt transmission, and a conveying pump is fixedly connected inside the working box (1).

2. The crushing mechanism according to claim 1, characterized in that: A protective cover is fixedly connected to the surface of the motor (12).

3. The crushing mechanism according to claim 1, characterized in that: A protective cover (14) is fixedly connected to the right side of the work box (1), and the drive wheel (13), motor (12) and driven wheel (11) are all located inside the protective cover (14).

4. The crushing mechanism according to claim 1, characterized in that: The crushing box (2) is fixedly connected to a flow guide (15).

5. The crushing mechanism according to claim 1, characterized in that: A guide plate (16) is fixedly connected inside the crushing box (2).

6. The crushing mechanism according to claim 1, characterized in that: The surfaces of both the working box (1) and the crushing box (2) are fixedly connected with sound insulation felt.

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