A building waste brick concrete crushing and recycling device

Abstract

The application relates to the technical field of crushing, in particular to a building waste brick concrete crushing and recycling device. The device comprises a supporting mechanism, a crushing mechanism, a collecting mechanism and a sealing mechanism. The supporting mechanism comprises supporting columns arranged on the side of a supporting frame. The crushing mechanism comprises a supporting box arranged at the inner end of the supporting column in the supporting frame, a hydraulic cylinder arranged on the inner wall of the supporting box, a pressing block sleeved on the end of the hydraulic cylinder, a protective cover arranged on the inner wall of the supporting box and a bottom plate arranged in the supporting box. The collecting mechanism comprises a collecting box arranged outside the supporting box and a supporting plate arranged in the collecting box. The sealing mechanism comprises a first sliding groove arranged on the outer wall of the protective cover, a second sliding groove arranged on the outer wall of the protective cover, a baffle arranged on the outer wall of the second convex block and a fixing rod arranged on the outer wall of the pressing block.

Description

Technical Field

[0001] This invention relates to the field of crushing technology, specifically to a crushing and recycling device for construction waste bricks and concrete. Background Technology

[0002] In the field of construction engineering, concrete bricks are widely used due to their good mechanical properties and durability, forming the main structure of various buildings. However, with the advancement of urban renewal, infrastructure upgrades, or post-disaster reconstruction, a large number of buildings need to be demolished, resulting in a huge amount of waste concrete bricks.

[0003] For the disposal of these waste bricks, conventional large-scale demolition projects generally use large crushing machinery (such as mobile jaw crushers, impact crushers, etc.) for centralized and batch crushing operations. This industrialized processing mode is highly efficient and has a large throughput, which can quickly decompose large-volume concrete components into recycled aggregates of different specifications. These aggregates can be further used to produce recycled bricks, road construction materials, or to prepare new concrete, thereby realizing the recycling of resources.

[0004] However, in specific scenarios, such as material performance testing, sampling surveys, cultural relic exploration, or only small-scale local renovations, it is not possible to directly use large-scale mechanical crushing methods. In these cases, it is often necessary to use small crushers (such as handheld hydraulic picks or small jaw crushers) or even hand tools to crush concrete bricks one by one with precision. Although this method is highly targeted and flexible, and can meet the needs of sampling or small-scale operations, it also brings some obvious challenges: the vibration and impact generated during the crushing process can easily cause fragments to fly everywhere; at the same time, small equipment usually lacks an integrated and efficient collection system, resulting in a wide distribution of crushed concrete fragments with irregular shapes (ranging from coarse aggregate to powder), which greatly inconveniences subsequent cleaning and collection work, not only increasing labor intensity but also potentially affecting the representativeness of the sample or the quality of fragment recycling. Summary of the Invention

[0005] In view of the problem of flying debris during crushing in the above or existing technologies, the present invention is proposed.

[0006] Therefore, the object of this invention is to provide a device for crushing and recycling construction waste bricks and concrete, comprising, The support mechanism includes support columns disposed on the side of the support mechanism and support columns disposed on the side of the support frame; and, The crushing mechanism includes a support box disposed at the inner end of the support column located inside the support frame, a hydraulic cylinder disposed on the inner wall of the support box, a pressing block sleeved on the end of the hydraulic cylinder, a protective cover disposed on the inner wall of the support box, and a bottom plate disposed inside the support box; and, The collection mechanism includes a collection box disposed outside the support box and a support plate disposed inside the collection box; and, The sealing mechanism includes a first groove formed on the outer wall of the protective cover, a second groove formed on the outer wall of the protective cover, a baffle disposed on the outer wall of the second protrusion, and a fixing rod disposed on the outer wall of the pressing block; wherein, By placing waste bricks inside the support box, the waste bricks can be crushed through the cooperation of hydraulic cylinders and the base plate. At the same time, the support mechanism supports the crushing mechanism, making it easy to dump the crushed bricks out. The collection mechanism collects the crushed bricks, and the sealing mechanism protects the bricks during crushing to prevent them from flying.

[0007] As a preferred embodiment of the construction waste brick and concrete crushing and recycling device of the present invention, there are two support columns, which are mirror-symmetrical about the vertical line of the support frame, and the ends of the two support columns that are close to each other are connected to the outer wall of the support box.

[0008] As a preferred embodiment of the construction waste brick and concrete crushing and recycling device of the present invention, wherein: the end face of the pressing block away from the hydraulic cylinder is provided with a first protrusion, and the end face of the bottom plate is provided with a second protrusion, and there are multiple first protrusions and second protrusions, which are arranged in multiple rows of annular equidistant arrays on the end faces of the pressing block and the bottom plate respectively.

[0009] As a preferred embodiment of the construction waste brick and concrete crushing and recycling device of the present invention, wherein: a slider is provided on the side of the baffle near the second protrusion, a groove is provided on the outer wall of the second protrusion, and the slider provided on one side of the baffle is placed in the groove provided on the outer wall of the second protrusion.

[0010] As a preferred embodiment of the construction waste brick and concrete crushing and recycling device of the present invention, wherein: a hanging rod is provided on the side of the baffle, the fixing rod is located inside the hanging rod, a limit groove is opened at the end of the hydraulic cylinder, and a steel ball is placed inside the limit groove.

[0011] As a preferred embodiment of the construction waste brick and concrete crushing and recycling device of the present invention, wherein: the inside of the pressing block is rotatably sleeved with the end of the hydraulic cylinder, and there are multiple limiting grooves and steel balls, which are arranged in multiple equidistant arrays with the vertical line of the hydraulic cylinder as the center line.

[0012] As a preferred embodiment of the waste brick and concrete crushing and recycling device of the present invention, wherein: the outer wall of the support box is provided with a pushing mechanism; The pushing mechanism includes a support bar, the outer wall of which is connected to the inner side wall of the support box, and a mounting rod is provided on the side of the support bar, with a push rod sleeved on the outer wall of the mounting rod.

[0013] As a preferred solution of the building waste brick and concrete crushing and recycling device of the present invention, wherein: there are two support bars and mounting rods, and they are symmetrically mirrored with respect to the vertical center line of the support box. The push rod is in a "C" shape, and both sides of the push rod are sleeved on the outer walls of the two mounting rods.

[0014] As a preferred solution of the building waste brick and concrete crushing and recycling device of the present invention, wherein: a limiting mechanism is provided inside the support plate; The limiting mechanism includes a mounting groove, which is opened on the surface of the support plate. A sliding plate is sleeved on the inner wall of the mounting groove. A limiting block is provided at the end face of the sliding plate, and the limiting block penetrates through the surface of the support plate and extends to the outside of the support plate. A tension spring is provided at the end of the sliding plate away from the limiting block. A pull rod is provided on the side of the sliding plate close to the tension spring, and the pull rod penetrates through the bottom of the support plate and extends to the outside of the support plate. A clamping groove is opened at the bottom of the collection box.

[0015] As a preferred solution of the building waste brick and concrete crushing and recycling device of the present invention, wherein: the vertical cross-section of the mounting groove is in a "convex" shape, the tension springs are arranged in an equidistant array inside the mounting groove, and the vertical cross-section of the mounting groove is in a "U" shape.

[0016] The beneficial effects of the present invention: The support mechanism can support the crushing mechanism, thereby facilitating the movement of the crushing mechanism. And the crushing mechanism can crush the building waste concrete bricks one by one. The added sealing mechanism can protect the building waste concrete bricks during crushing, avoiding the problem of splashing. At the same time, when crushing, the cooperation of the collection mechanism and the pushing mechanism can facilitate the collection of the crushed building waste concrete bricks. Moreover, the limiting mechanism can facilitate the installation of the collection mechanism, increasing the convenience of collection and also facilitating the removal of the collected building waste concrete bricks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a structural schematic diagram of the building waste brick and concrete crushing and recycling device.

[0019] Figure 2 It is a partial side view structural schematic diagram of the building waste brick and concrete crushing and recycling device.

[0020] Figure 3 This is a schematic diagram of the crushing mechanism of a waste brick and concrete crushing and recycling device.

[0021] Figure 4 A schematic diagram of the sealing mechanism of a waste brick and concrete crushing and recycling device.

[0022] Figure 5 A schematic diagram of the chute structure for a waste brick and concrete crushing and recycling device.

[0023] Figure 6 A schematic diagram of the limiting groove structure of a waste brick and concrete crushing and recycling device.

[0024] Figure 7 A schematic diagram of the limiting mechanism of a waste brick and concrete crushing and recycling device.

[0025] In the diagram: 1. Support mechanism; 11. Support frame; 12. Support column; 2. Crushing mechanism; 21. Support box; 22. Hydraulic cylinder; 23. Pressing block; 24. First protrusion; 25. Protective cover; 26. Base plate; 27. Second protrusion; 3. Collection mechanism; 31. Collection box; 32. Support plate; 4. Sealing mechanism; 41. First chute; 42. Second chute; 43. Fixing rod; 44. Baffle; 45. Hanging rod; 46. Limiting groove; 47. Steel ball; 5. Pushing mechanism; 51. Support bar; 52. Mounting rod; 53. Push rod; 6. Limiting mechanism; 61. Mounting groove; 62. Tension spring; 63. Sliding plate; 64. Limiting block; 65. Pull rod; 66. Slot. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, referring to Figures 1 to 7This is the first embodiment of the present invention, which provides a crushing and recycling device for construction waste bricks and concrete. It provides protection during crushing and facilitates efficient recycling. The device includes... Support mechanism 1 includes a support frame 11 disposed on the side of support mechanism 1 and a support column 12 disposed on the side of support frame 11; and, The crushing mechanism 2 includes a support box 21 disposed at the inner end of the support column 12 located inside the support frame 11, a hydraulic cylinder 22 disposed on the inner wall of the support box 21, a pressing block 23 sleeved on the end of the hydraulic cylinder 22, a protective cover 25 disposed on the inner wall of the support box 21, and a bottom plate 26 disposed inside the support box 21; and, The collection mechanism 3 includes a collection box 31 disposed outside the support box 21 and a support plate 32 disposed inside the collection box 31; and, The sealing mechanism 4 includes a first groove 41 formed on the outer wall of the protective cover 25, a second groove 42 formed on the outer wall of the protective cover 25, a baffle 44 disposed on the outer wall of the base plate 26, and a fixing rod 43 disposed on the outer wall of the pressing block 23; wherein, By placing construction waste bricks inside the support box 21, the waste bricks can be crushed through the cooperation of the hydraulic cylinder 22 and the base plate 26. At the same time, the support mechanism 1 supports the crushing mechanism 2, making it easy to pour out the crushed bricks inside the crushing mechanism 2. The crushed bricks are recycled through the collection mechanism 3, and the sealing mechanism 4 can protect the bricks when they are crushed to prevent them from splashing.

[0030] Specifically, there are two support columns 12, which are mirror-symmetrical about the vertical line of the support frame 11, and the ends of the two support columns 12 that are close to each other are connected to the outer wall of the support box 21.

[0031] In summary, during use, the support frame 11 in the support mechanism 1 first supports the support column 12, and the outer walls of the two support columns 12 can be rotatably connected to the inner sides of the support frame 11. Furthermore, the crushing mechanism 2 is provided, and the support box 21 in the crushing mechanism 2 is fixedly connected to the end of the support column 12, thus facilitating the movement of the support box 21 inside the support frame 11. A hydraulic cylinder 22 is fixedly installed on the top of the inner wall of the support box 21, and a protective cover 25 is fixedly connected to the bottom inner wall of the support box 21. The bottom of the base plate 26 is fixedly connected to the bottom inner wall of the support box 21, and the inner wall of the protective cover 25 is fixedly connected to the outer wall of the base plate 26. By placing the construction waste bricks and concrete between the hydraulic cylinder 22 and the base plate 26 on their adjacent sides, activating the hydraulic cylinder 22 causes its output end to move downwards. Since the pressing block 23 is rotatably sleeved on the end of the hydraulic cylinder 22, the pressing block 23, in conjunction with the base plate 26, can crush the construction waste bricks and concrete. With the sealing mechanism 4 in place, since the first groove 41 in the sealing mechanism 4 is opened on the back of the protective cover 25 and is opened at an angle, the output shaft of the hydraulic cylinder 22 can drive the pressing block 23 to move downward when it moves downward. Since the fixing rod 43 fixedly connected to the outer wall of the pressing block 23 will slide along the inner wall of the first groove 41, when the pressing block 23 rotates, the pressing block 23 will drive the fixing rod 43 to push the baffle 44. Therefore, the baffle 44 will move along the protective cover. The outer wall of the protective cover 25 slides, which can seal the opening of the protective cover 25 where construction waste bricks and concrete are placed. After the baffle 44 seals the opening of the protective cover 25, the fixing rod 43 will drive the pressing block 23 to move along the direction of the second slide groove 42. Therefore, the baffle 44 will not be pushed, and the baffle 44 will always be in the state of sealing the protective cover 25. The second slide groove 42 will cause the pressing block 23 to rotate little by little, which will facilitate better crushing of construction waste bricks and concrete.

[0032] Example 2, refer to Figures 1 to 7 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides structural optimization of the crushing mechanism and the sealing mechanism, which solves the problem of preventing splashing during crushing. The end face of the pressing block 23 away from the hydraulic cylinder 22 is provided with a first protrusion 24, and the end face of the base plate 26 is provided with a second protrusion 27. There are multiple first protrusions 24 and second protrusions 27, which are arranged in a multi-column annular equidistant array on the end faces of the pressing block 23 and the base plate 26, respectively.

[0033] Specifically, a slider is provided on the side of the baffle 44 near the second protrusion 27, and a groove is provided on the outer wall of the second protrusion 27. The slider provided on one side of the baffle 44 is placed in the groove provided on the outer wall of the second protrusion 27.

[0034] Furthermore, a hanging rod 45 is provided on the side of the baffle 44, the fixing rod 43 is located inside the hanging rod 45, and a limit groove 46 is provided at the end of the hydraulic cylinder 22, and a steel ball 47 is placed inside the limit groove 46.

[0035] Furthermore, the interior of the pressing block 23 is rotatably sleeved with the end of the hydraulic cylinder 22, and there are multiple limiting grooves 46 and steel balls 47, which are arranged in multiple equidistant arrays along the vertical line of the hydraulic cylinder 22. In summary, during use, since the end face of the pressing block 23 away from the hydraulic cylinder 22 is provided with multiple first protrusions 24, and in conjunction with the multiple second protrusions 27 provided on the end face of the base plate 26, when crushing construction waste bricks and concrete, the surface-to-surface compression is transformed into multiple point compression, thereby increasing the crushing effect. A hanging rod 45 is fixedly connected to the top side of the baffle 44, and a slider fixedly connected to the top side of the baffle 44 near the protective cover 25 is placed in a groove opened on the top of the outer wall of the protective cover 25. Therefore, the protective cover 25 can easily limit the position of the baffle 44, and facilitate the sliding of the inner wall of the baffle 44 on the outer wall of the protective cover 25, avoiding the problem of falling off and collapsing. When the fixing rod 43 slides inside the first groove 41, the fixing rod 43 is inside the hanging rod 45. However, when the fixing rod 43 slides inside the second groove 42, the fixing rod 43 will slide out from below the hanging rod 45. Therefore, when the hydraulic cylinder 22 moves downward, it can seal the opening of the baffle 44 to the protective cover 25. After the baffle 44 seals the protective cover 25, the fixing rod 43 drives the pressing block 23 to move along the movement direction of the second groove 42. Therefore, it can perform micro-rotation crushing when crushing construction waste bricks and concrete, increasing the crushing effect. After crushing, the hydraulic cylinder 22... When the output shaft of 2 retracts, the pressing block 23 will move in the opposite direction by the fixing rod 43. This makes it easier for the fixing rod 43 to move into the first slide groove 41. When the fixing rod 43 is inside the hanging rod 45, it is easy to pull the baffle 44, which makes it easy to open the protective cover 25 and facilitate the recycling of the crushed construction waste bricks and concrete. Since the inside of the pressing block 23 is rotatably connected to the output end of the hydraulic cylinder 22, and the output end of the hydraulic cylinder 22 is provided with multiple limiting grooves 46, and steel balls 47 are placed inside the limiting grooves 46, the friction between the output end of the hydraulic cylinder 22 and the pressing block 23 can be reduced.

[0036] Example 3, referring to Figures 1 to 7 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides structural optimization of the pushing mechanism, which solves the problem of broken bricks after being dumped. The outer wall of the support box 21 is provided with a pushing mechanism 5. The pushing mechanism 5 includes a support bar 51, the outer wall of the support bar 51 is connected to the inner side wall of the support box 21, an installation rod 52 is arranged on the side of the support bar 51, and a push rod 53 is sleeved on the outer wall of the installation rod 52.

[0037] Specifically, both the support bar 51 and the installation rod 52 are two, and are mirror-symmetrical with respect to the vertical center line of the support box 21. The push rod 53 is in a "C" shape, and both sides of the push rod 53 are sleeved on the outer walls of the two installation rods 52. In summary, when in use, due to the pushing mechanism 5 provided on the front surface of the support box 21, since there are two support bars 51 in the pushing mechanism 5, and both are located on the inner walls between the two mutually adjacent sides of the two support boxes 21, and the two support bars 51 respectively support the installation rods 52, and a push rod 53 is rotatably connected to the outer wall of the installation rod 52, it is convenient for the push rod 53 to rotate. Furthermore, when it is necessary to push the support box 21 backward, the support box 21 can be pushed through the push rod 53. Therefore, it is convenient to pour out the construction waste bricks after the bottom of the support box 21 is broken, and it does not affect the placement of construction waste bricks into the support box 21.

[0038] Example 4, refer to Figures 1 to 7 , which is the fourth embodiment of the present invention. Different from the previous embodiment, this embodiment provides a structural optimization of the limiting mechanism, solving the problem of recycling. A limiting mechanism 6 is arranged inside the support plate 32; The limiting mechanism 6 includes an installation groove 61, the installation groove 61 is opened on the surface of the support plate 32, a sliding plate 63 is sleeved on the inner wall of the installation groove 61, a limiting block 64 is arranged on the end face of the sliding plate 63, the limiting block 64 penetrates through the surface of the support plate 32 and extends to the outside of the support plate 32. A tension spring 62 is arranged at the end of the sliding plate 63 far from the limiting block 64, a pull rod 65 is arranged on the side of the sliding plate 63 close to the tension spring 62, the pull rod 65 penetrates through the bottom of the support plate 32 and extends to the outside of the support plate 32, and a card slot 66 is opened at the bottom of the collection box 31.

[0039] As a preferred solution of the construction waste brick concrete crushing and recycling device of the present invention, among them: the vertical cross-section of the installation groove 61 is in a "convex" shape, the tension springs 62 are arranged in an equidistant array inside the installation groove 61, and the vertical cross-section of the installation groove 61 is in a "U" shape.

[0040] In summary, during use, a limiting mechanism 6 is provided inside the bottom of the support plate 32. Since the mounting groove 61 in the limiting mechanism 6 is located on the bottom inner wall of the support plate 32, and the vertical cross-section of the mounting groove 61 is convex, and tension springs 62 are slidably connected to the inner wall of the mounting groove 61, and a limiting block 64 is fixedly connected to the top of the tension springs 62, and multiple tension springs 62 are fixedly connected to the bottom inner wall of the mounting groove 61, the tension springs 62 can push the sliding plate 63 upward under tension. When the limiting block 64 is pushed to the outside of the support plate 32, since the bottom of the collection box 31 has a slot 66, when the collection box 31 is pushed into the support plate 32, the bottom of the collection box 31 will squeeze the limiting block 64 until the limiting block 64 can lock into the slot 66 at the bottom of the collection box 31, thus preventing the collection box 31 from falling. When the collection box 31 needs to be removed, simply pull the lever 65, and the limiting block 64 will retract into the mounting groove 61, thus facilitating the removal of the collection box 31.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for crushing and recycling construction waste bricks and concrete, characterized in that: Including, The support mechanism (1) includes a support frame (11) disposed on the side of the support mechanism (1) and a support column (12) disposed on the side of the support frame (11); and, The crushing mechanism (2) includes a support box (21) disposed at the end of the support column (12) located inside the support frame (11), a hydraulic cylinder (22) disposed on the inner wall of the support box (21), a pressing block (23) sleeved on the end of the hydraulic cylinder (22), a protective cover (25) disposed on the inner wall of the support box (21), and a bottom plate (26) disposed inside the support box (21); and, The collection mechanism (3) includes a collection box (31) disposed outside the support box (21) and a support plate (32) disposed inside the collection box (31); and, The sealing mechanism (4) includes a first groove (41) formed on the outer wall of the protective cover (25), a second groove (42) formed on the outer wall of the protective cover (25), a baffle (44) provided on the outer wall of the base plate (26), and a fixing rod (43) provided on the outer wall of the pressing block (23); wherein, By placing the construction waste bricks inside the support box (21), the waste bricks can be crushed by the cooperation of the hydraulic cylinder (22) and the base plate (26). At the same time, the crushing mechanism (2) is supported by the support mechanism (1), making it easy to pour out the crushed bricks inside the crushing mechanism (2). The crushed bricks are recycled by the collection mechanism (3), and the sealing mechanism (4) can protect the bricks when they are crushed to prevent them from splashing. There are two support columns (12), which are mirror-symmetrical about the vertical line of the support frame (11). The two support columns (12) are connected to the outer wall of the support box (21) at their closest points. The end face of the pressing block (23) away from the hydraulic cylinder (22) is provided with a first protrusion (24), and the end face of the base plate (26) is provided with a second protrusion (27). There are multiple first protrusions (24) and second protrusions (27), and they are arranged in multiple rows of annular equidistant arrays on the end faces of the pressing block (23) and the base plate (26), respectively. A slider is provided on the side of the baffle (44) near the second protrusion (27), and a groove is provided on the outer wall of the second protrusion (27). The slider provided on one side of the baffle (44) is placed in the groove on the outer wall of the second protrusion (27). The side of the baffle (44) is provided with a hanging rod (45), the fixing rod (43) is located inside the hanging rod (45), and the end of the hydraulic cylinder (22) is provided with a limiting groove (46), and a steel ball (47) is placed inside the limiting groove (46).

2. The construction waste brick and concrete crushing and recycling device as described in claim 1, characterized in that: The inside of the pressing block (23) is rotatably sleeved with the end of the hydraulic cylinder (22). The limiting groove (46) and the steel ball (47) are multiple and arranged in multiple equidistant arrays with the vertical line of the hydraulic cylinder (22).

3. The construction waste brick and concrete crushing and recycling device as described in claim 2, characterized in that: The outer wall of the support box (21) is provided with a pushing mechanism (5); The driving mechanism (5) includes a support bar (51), the outer wall of the support bar (51) is connected to the inner wall of the side surface of the support box (21), an installation rod (52) is arranged on the side surface of the support bar (51), and a push rod (53) is sleeved on the outer wall of the installation rod (52).

4. The construction waste brick and concrete crushing and recycling device as described in claim 3, characterized in that: Both the support bar (51) and the installation rod (52) are two and are mirror-symmetrical about the vertical bisector of the support box (21). The push rod (53) is in a "匚” shape, and both sides of the push rod (53) are sleeved on the outer walls of the two installation rods (52).

5. The construction waste brick and concrete crushing and recycling device as described in claim 4, characterized in that: A limiting mechanism (6) is arranged inside the support plate (32); The limiting mechanism (6) includes an installation groove (61), the installation groove (61) is opened on the surface of the support plate (32), a sliding plate (63) is sleeved on the inner wall of the installation groove (61), a limiting block (64) is arranged on the end surface of the sliding plate (63), the limiting block (64) penetrates through the surface of the support plate (32) and extends to the outside of the support plate (32), a tension spring (62) is arranged at the end of the sliding plate (63) far away from the limiting block (64), a pull rod (65) is arranged on the side of the sliding plate (63) close to the tension spring (62), the pull rod (65) penetrates through the bottom of the support plate (32) and extends to the outside of the support plate (32), and a clamping groove (66) is opened at the bottom of the collection box (31).

6. The construction waste brick and concrete crushing and recycling device as described in claim 5, characterized in that: The vertical cross-section of the installation groove (61) is in a "凸” shape, the tension springs (62) are arranged in an equidistant array inside the installation groove (61), and the vertical cross-section of the installation groove (61) is in a "U” shape.

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