Concrete crushing device for house construction

Abstract

The invention provides a concrete crushing device for house construction, which comprises a device shell, a crushing static plate, a crushing power plate, a crushing contact plate, a stone size control plate, a buffer connecting mechanism, an eccentric wheel, a transmission shaft and a buffer assembly, the transmission shaft rotates to drive the eccentric wheel to rotate, so that the crushing power plate generates transverse reciprocating displacement, and the lower end of the crushing power plate is connected with the device shell through a buffer assembly to allow the device shell to move; the buffer connecting mechanism is arranged to be capable of adjusting the distance between the upper end of the crushing contact plate and the crushing power plate, and therefore the inclination angle of the crushing contact plate relative to the crushing power plate is adjusted, so that smooth stones are not prone to sliding upwards, and the upper end of the stone size control plate is rotatably connected to the crushing power plate. The lower end of the stone size control plate can be vertically and slidably connected to the device shell so as to be matched with the crushing contact plate to provide two-stage crushing treatment for stone to be crushed.

Description

Technical Field

[0001] The invention relates to a crusher, in particular to a concrete crushing device for building construction. Background Art

[0002] The existing concrete crushing device for house construction usually adopts a jaw crusher to crush the concrete blocks for house construction. Since the surface of concrete is relatively smooth, especially when crushing large-volume materials, the materials are easy to slide to the upper end of the jaw crusher, thereby affecting its crushing effect.

[0003] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0004] Based on this, it is necessary to provide a concrete crushing device for house construction to address the problem that the current jaw crusher is prone to sliding upward when crushing larger materials with smooth surfaces, thereby affecting the crushing effect.

[0005] The above purpose is achieved through the following technical solutions: A concrete crushing device for house construction, comprising a device housing, a crushing static plate, a crushing power plate, a crushing contact plate, a stone size control plate, a buffer connection mechanism, an eccentric wheel, a transmission shaft, and a buffer assembly; The crushing static plate and the crushing power plate are both tiltedly arranged in the device housing and are arranged opposite to each other to form a crushing chamber therebetween. The crushing static plate is fixedly arranged. The upper end of the crushing power plate is connected to the transmission shaft through the eccentric wheel. The transmission shaft is rotatably arranged on the device housing. The rotation of the transmission shaft can drive the eccentric wheel to rotate and thus cause the crushing power plate to produce a lateral reciprocating displacement. The lower end of the crushing power plate is connected to the device housing through the buffer assembly to allow it to move. The crushing contact plate and the stone size control plate are both located on one side of the crushing power plate close to the crushing static plate, and the crushing contact plate is located above the stone size control plate; The upper end of the crushing contact plate is connected to the crushing power plate through the buffer connection mechanism, and the lower end of the crushing contact plate is rotatably connected to the crushing power plate. The buffer connection mechanism is configured to adjust the distance between the upper end of the crushing contact plate and the crushing power plate and thus adjust the inclination angle of the crushing contact plate relative to the crushing power plate. The upper end of the stone size control plate is rotatably connected to the crushing power plate, and the lower end of the stone size control plate is vertically slidably connected to the device housing.

[0006] Furthermore, the buffer connection mechanism is a hydraulic telescopic mechanism, one end of the hydraulic telescopic mechanism is hinged to the upper end of the crushing contact plate, and the other end of the hydraulic telescopic mechanism is hinged to the crushing power plate.

[0007] Furthermore, a sliding shaft is provided at the lower end of the stone size control panel, and two guide rails are provided on the device housing. The two guide rails are vertically arranged and parallel to each other, and a vertical sliding groove is formed between the two guide rails. The sliding shaft can be slidably arranged in the sliding groove.

[0008] Furthermore, the lower end of the crushing contact plate and the hinge point of the crushing power plate are coaxial with the upper end of the stone size control plate and the hinge point of the crushing power plate.

[0009] Furthermore, the length of the crushing contact plate is greater than the length of the stone size control plate.

[0010] Furthermore, the concrete crushing device for house construction also includes a material guide plate, one end of which is connected to the upper end of the crushing power plate, and the material guide plate is arranged at an angle to guide the material to be crushed into the crushing chamber, and the material guide plate can also cover the upper opening between the crushing contact plate and the crushing power plate.

[0011] Furthermore, the buffer assembly includes a hydraulic buffer mechanism, which is fixedly connected to the device housing, and the output end of the hydraulic buffer mechanism is connected to the lower end of the crushing power plate through a limiting hinge rod.

[0012] Furthermore, the buffer assembly also includes an elastic buffer mechanism, one end of which is hinged to the device housing, and the other end of which is hinged to the lower end of the crushing power plate.

[0013] Furthermore, the concrete crushing device for house construction also includes a motor, and the motor is configured to drive the transmission shaft to rotate.

[0014] Furthermore, the concrete crushing device for house construction also includes a transmission wheel and a belt. The transmission wheel is arranged on the transmission shaft, and the output shaft of the motor is connected to the transmission wheel through the belt.

[0015] The beneficial effects of the present invention are: The concrete crushing device for house construction of the present invention effectively controls the size of the material discharged from the bottom by adding a stone size control plate, and rotatably connects the upper end of the stone size control plate to the crushing power plate, and vertically slides the lower end of the stone size control plate to the device housing, thereby effectively improving the uniformity of crushing and further effectively improving the crushing effect. Furthermore, based on the addition of the stone size control plate, the present invention can cooperate with the crushing contact plate to perform the crushing work together, thereby providing two-stage crushing treatment for the stones to be crushed, thereby helping to ensure the crushing effect of the stones.

[0016] In addition, the present invention arranges that the upper end of the crushing contact plate is connected to the crushing power plate through a buffer connection mechanism, and the lower end of the crushing contact plate is rotatably connected to the crushing power plate, so that the buffer connection mechanism can adjust the distance between the upper end of the crushing contact plate and the crushing power plate and thereby adjust the inclination angle of the crushing contact plate relative to the crushing power plate. After the stone enters the crushing chamber, the inclination angle of the crushing contact plate relative to the crushing power plate is adjusted by controlling the operating state of the buffer connection mechanism, so that the smooth stone is not easy to slide upwards, thereby effectively preventing the problem of affecting the crushing efficiency due to slipping, thereby effectively improving the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the concrete crushing device for house construction of the present invention; Figure 2 It is a left side view of the concrete crushing device for house construction of the present invention; Figure 3 for Figure 2 Sectional view of section AA; Figure 4 for Figure 3 The enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0018] in: 110. Device housing; 111. Two side clamps; 1111. Guide rails; 112. Motor; 113. Belt; 114. Transmission wheel; 115. Eccentric wheel; 116. Transmission shaft; 117. Material guide plate; 118. Crushing power plate; 1181. First hinge point; 1182. Second hinge point; 119. Crushing static plate; 120. Hydraulic buffer mechanism; 121. Fixed block; 122. Limiting hinge rod; 123. Elastic buffer mechanism; 131. Crushing contact plate; 132. Connecting plate; 133. Third hinge point; 134. Hydraulic telescopic mechanism; 135. Fourth hinge point; 141. Stone size control plate; 142. Fifth hinge point; 143. Sliding shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connected", "connected", and "coupled" mentioned in the embodiments of the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, the expression that a first feature is “on” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the expression that a first feature is “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The expression that a first feature is “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] See also Figures 1 to 5The concrete crushing device for house construction of the present invention comprises a device housing 110, a crushing static plate 119, a crushing power plate 118, a crushing contact plate 131, a stone size control plate 141, a hydraulic telescopic mechanism 134, an eccentric wheel 115, a transmission shaft 116 and a buffer assembly. The crushing static plate 119 and the crushing power plate 118 are both tiltedly arranged in the device housing 110 and are arranged opposite to each other to form a crushing chamber therebetween. The crushing static plate 119 is fixedly arranged. The upper end of the crushing power plate 118 is connected to the transmission shaft 116 through the eccentric wheel 115. The transmission shaft 116 is rotatably arranged on the device housing 110. The rotation of the transmission shaft 116 can drive the eccentric wheel 115 to rotate and thus cause the crushing power plate 118 to produce a lateral reciprocating displacement. The lower end of the crushing power plate 118 is connected to the device housing 110 through the buffer assembly to allow it to move. The crushing contact plate 131 and the stone size control plate 141 are both located on one side of the crushing power plate 118 close to the crushing static plate 119, and the crushing contact plate 131 is located above the stone size control plate 141. The upper end of the crushing contact plate 131 is connected to the crushing power plate 118 through a hydraulic telescopic mechanism 134, and the lower end of the crushing contact plate 131 is rotatably connected to the crushing power plate 118. The hydraulic telescopic mechanism 134 is configured to be able to adjust the distance between the upper end of the crushing contact plate 131 and the crushing power plate 118 and thus adjust the inclination angle of the crushing contact plate 131 relative to the crushing power plate 118; the upper end of the stone size control plate 141 is rotatably connected to the crushing power plate 118, and the lower end of the stone size control plate 141 is vertically slidably connected to the device housing 110.

[0023] like Figure 1 As shown, in this embodiment, the device housing 110 is composed of a plurality of plate-like structures, including a bottom plate and two side clamping plates 111 disposed on the bottom plate, and the two side clamping plates 111 are disposed in parallel and spaced apart to form a cavity structure between the two and support the remaining crushing structures. Of course, the present invention does not limit the specific structural form of the device housing 110, as long as it can form a cavity structure and support the remaining crushing structures. Figure 3 In the middle position, the crushing static plate 119 is tilted from the upper left to the lower right, and the crushing power plate 118 is tilted from the upper right to the lower left, so as to form a crushing chamber that is wide at the top and narrow at the bottom between the two, with the upper end being the feed port and the lower end being the discharge port. The crushing static plate 119 is fixedly connected to the two side clamping plates 111 through a plurality of rib structures, and the crushing power plate 118 is a plate-like structure with two layers of clamping plates and a cavity in the middle, and its upper end is connected to the transmission shaft 116 through the eccentric wheel 115, and the top of the two side clamping plates 111 is provided with a bearing seat, and the transmission shaft 116 is rotatably provided on the bearing seat, so that the transmission shaft 116 can rotate relative to the device housing 110.

[0024] Further, such as Figures 1 to 3As shown, the concrete crushing device for house construction of the present invention further comprises a motor 112, a transmission wheel 114 and a belt 113. The motor 112 is fixedly arranged on the bottom plate of the device housing 110, the transmission wheel 114 is fixedly connected to the transmission shaft 116, and the output shaft of the motor 112 is connected to the transmission wheel 114 through the belt 113. When the motor 112 is working, it can drive the belt 113 to move, so that the belt 113 drives the transmission wheel 114 to rotate, and then drives the transmission shaft 116 to rotate, so that the transmission shaft 116 can further drive the eccentric wheel 115 to rotate.

[0025] Next Read Figure 3 The crushing contact plate 131 and the stone size control plate 141 are both located on the side of the crushing power plate 118 close to the crushing static plate 119, that is, Figure 3 On the left side of the crushing power plate 118, the crushing contact plate 131 is located above the stone size control plate 141, and the right bottom of the crushing power plate 118 is connected to the two side clamping plates 111 through a buffer assembly to allow it to move. It can be understood that the present invention does not limit the specific structural form of the buffer assembly, as long as the crushing power plate 118 is connected to the device housing 110 through the buffer assembly to allow it to move within a certain range to ensure its crushing operation, and those skilled in the art can set it according to actual use requirements.

[0026] Further, such as Figures 3 to 5 As shown, the upper end of the crushing contact plate 131 is connected to the crushing power plate 118 through a hydraulic telescopic mechanism 134, see Figure 3In the orientation in the middle, the right end of the hydraulic telescopic mechanism 134 is hinged to the crushing power plate 118, specifically, the hinge is realized through the first hinge point 1181, and the left end of the hydraulic telescopic mechanism 134 is hinged to the upper end of the crushing contact plate 131. Specifically, a connecting plate 132 is provided on the right side surface of the upper end of the crushing contact plate 131, and the end surface of the connecting plate 132 facing the crushing power plate 118 is in an arc shape. The left end of the hydraulic telescopic mechanism 134 is hinged to the connecting plate 132 through the third hinge point 133 to realize the hinge connection between the crushing contact plate 131 and the hydraulic telescopic mechanism 134. A second hinge point 1182 is provided on the left side of the lower part of the crushing power plate 118, and a fourth hinge point 135 is provided at the lower end of the crushing contact plate 131. The second hinge point 1182 and the fourth hinge point 135 are hinged, so that the lower end of the crushing contact plate 131 can be rotatably connected to the crushing power plate 118. Based on this setting, the hydraulic telescopic mechanism 134 can adjust the distance between the upper end of the crushing contact plate 131 and the crushing power plate 118 during the telescopic process. At the same time, during this process, the lower end of the crushing contact plate 131 rotates, thereby adjusting the inclination angle of the crushing contact plate 131 relative to the crushing power plate 118, and then adjusting the distance between the crushing contact plate 131 and the crushing static plate 119. It should be noted that although the buffer connection mechanism in this embodiment adopts the hydraulic telescopic mechanism 134, this is obviously not restrictive. For example, the buffer connection mechanism can also be a cylinder, a worm gear mechanism, etc., as long as the buffer connection mechanism can adjust the distance between the upper end of the crushing contact plate 131 and the crushing power plate 118.

[0027] Next Read Figure 3 and Figure 5The upper end of the stone size control plate 141 is rotatably connected to the crushing power plate 118, and the lower end of the stone size control plate 141 is vertically slidably connected to the device housing 110. Specifically, the upper end of the stone size control plate 141 is provided with a fifth hinge point 142, and the fifth hinge point 142 is hinged to the second hinge point 1182 provided on the crushing power plate 118, so as to realize the rotation connection between the stone size control plate 141 and the crushing power plate 118. In this embodiment, the lower end of the crushing contact plate 131 is coaxial with the hinge point of the crushing power plate 118 and the upper end of the stone size control plate 141 is coaxial with the hinge point of the crushing power plate 118, that is, the lower end of the crushing contact plate 131 is hinged with the crushing power plate 118 and the upper end of the stone size control plate 141 is hinged with the crushing power plate 118 through the second hinge point 1182, the fourth hinge point 135 and the fifth hinge point 142. Based on this setting, the waste of vertical space can be reduced as much as possible. After the material is first crushed by the crushing contact plate 131, it can be crushed again by the stone size control plate 141, thereby effectively realizing secondary crushing. In this embodiment, the length of the crushing contact plate 131 is greater than the length of the stone size control plate 141, that is, the cavity space between the crushing contact plate 131 and the crushing static plate 119 is greater than the cavity space between the stone size control plate 141 and the crushing static plate 119, thereby further effectively ensuring the secondary crushing efficiency.

[0028] Further, such as Figure 5 As shown in the figure, the lower end of the stone size control plate 141 can be vertically slidably connected to the device housing 110. Specifically, a sliding shaft 143 is provided at the lower end of the stone size control plate 141. The sliding shaft 143 is a cylindrical structure, and the sliding shaft 143 can be fixedly connected to the stone size control plate 141 or rotatably connected to the stone size control plate 141. Two long guide rails 1111 are provided on the two side clamps 111. The two guide rails 1111 are vertically arranged and parallel to each other. A vertical sliding groove is formed between the two guide rails 1111. The radial dimension of the cylindrical sliding shaft 143 matches the width of the sliding groove formed between the two guide rails 1111. The sliding shaft 143 is slidably arranged in the sliding groove, that is, the sliding shaft 143 can move up and down along the sliding groove, thereby effectively ensuring the size of the discharge port, and more helpful to ensure the size of the discharge, and effectively ensuring the crushing effect.

[0029] Continue reading Figure 3The concrete crushing device for house construction also includes a material guide plate 117, one end of which is connected to the upper end of a crushing power plate 118. The material guide plate 117 can be integrally arranged with the crushing power plate 118, or can be separately arranged and then connected. The material guide plate 117 is inclined to guide the material to be crushed into the crushing chamber, which is more conducive to feeding. The material guide plate 117 can also cover the upper opening between the crushing contact plate 131 and the crushing power plate 118 to prevent the material from accidentally falling into the crushing contact plate 131 and the crushing power plate 118 and affecting the action of the hydraulic telescopic mechanism 134, thereby effectively ensuring the normal progress of the crushing process.

[0030] Further, such as Figure 3 As shown, the buffer assembly includes a hydraulic buffer mechanism 120, which is fixedly connected to the device housing 110, and the output end of the hydraulic buffer mechanism 120 is connected to the lower end of the crushing power plate 118 through a limit hinge rod 122. Specifically, the hydraulic buffer mechanism 120 is fixedly connected to the two side clamps 111 through a fixed block 121, the left end of the limit hinge rod 122 is hinged to the lower end of the crushing power plate 118, and the right end of the limit hinge rod 122 is hinged to the output end of the hydraulic buffer mechanism 120. In the process of the crushing power plate 118 generating lateral reciprocating movement, the setting of the hydraulic buffer mechanism 120 can better allow the crushing power plate 118 to move. In addition, in this embodiment, the buffer assembly also includes an elastic buffer mechanism 123, one end of the elastic buffer mechanism 123 is hinged to the device housing 110, and the other end of the elastic buffer mechanism 123 is hinged to the lower end of the crushing power plate 118. Specifically, refer to Figure 3 In the middle position, the left end of the elastic buffer mechanism 123 is hinged to the crushing power plate 118, and the hinge point between the elastic buffer mechanism 123 and the crushing power plate 118 is located below the hinge point between the limit hinge rod 122 and the crushing power plate 118. The right end of the elastic buffer mechanism 123 is hinged to the bottom of the two side clamps 111. In the process of the crushing power plate 118 generating lateral reciprocating movement, the setting of the elastic buffer mechanism 123 can better allow the crushing power plate 118 to move. Based on the dual effects of the hydraulic buffer mechanism 120 and the elastic buffer mechanism 123, the power impact from the crushing power plate 118 can be better offset to prevent the kinetic energy from being transmitted to the device housing 110, which can not only effectively prevent the device housing 110 from being damaged, but also better ensure the stability of the crushing process.

[0031] Based on the above structural setting mode, the working process of the concrete crushing device for house construction of the present invention is as follows: At the beginning of the crushing work, first, add materials through the feed port above the crushing static plate 119 and the crushing contact plate 131 to allow the materials to enter the crushing chamber. The material guide plate 117 serves as a guiding structure, which can not only effectively guide the materials to enter the crushing chamber more smoothly, but also effectively prevent the materials from accidentally falling into the gap between the crushing contact plate 131 and the crushing power plate 118; at the same time, the motor 112 starts to work and drives the belt 113 to drive the transmission wheel 114 to rotate, and the transmission wheel 114 drives the transmission shaft 116 to rotate, so that the eccentric wheel 115 rotates eccentrically, so as to drive the crushing power plate 118 to start moving left and right, and then drive the crushing contact plate 131 to crush the materials. During the crushing process, the left and right movement of the crushing power plate 118 causes the second hinge point 1182 set thereon to move left and right, but since the sliding shaft 143 set on the stone size control plate 141 is slidably set in the sliding groove, it is effectively guaranteed that the size of the discharge port of the concrete crushing device for house construction remains unchanged, which helps to control the size of the discharge port, thereby ensuring the crushing effect; in addition, since the setting of the stone size control plate 141 can perform secondary crushing on the material, it helps to improve the crushing effect; during the crushing process, by extending the hydraulic telescopic mechanism 134, the crushing contact plate 131 is brought close to the crushing static plate 119, so that the inclination angle of the crushing contact plate 131 changes, thereby effectively preventing the smooth material from sliding upward, thereby helping to improve the crushing effect of the concrete crushing device for house construction on the smooth material. It can be understood that the telescopic action of the hydraulic telescopic mechanism 134 can be set to timed automatic control, or it can be set to manual control to control the inclination angle of the crushing contact plate 131 as needed.

[0032] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A concrete crushing device for house construction, characterized in that: The concrete crushing device for house construction comprises a device housing, a crushing static plate, a crushing power plate, a crushing contact plate, a stone size control plate, a buffer connection mechanism, an eccentric wheel, a transmission shaft, and a buffer assembly; The crushing static plate and the crushing power plate are both tiltedly arranged in the device housing and are arranged opposite to each other to form a crushing chamber therebetween. The crushing static plate is fixedly arranged. The upper end of the crushing power plate is connected to the transmission shaft through the eccentric wheel. The transmission shaft is rotatably arranged on the device housing. The rotation of the transmission shaft can drive the eccentric wheel to rotate and thus cause the crushing power plate to produce a lateral reciprocating displacement. The lower end of the crushing power plate is connected to the device housing through the buffer assembly to allow it to move. The crushing contact plate and the stone size control plate are both located on one side of the crushing power plate close to the crushing static plate, and the crushing contact plate is located above the stone size control plate; The upper end of the crushing contact plate is connected to the crushing power plate through the buffer connection mechanism, and the lower end of the crushing contact plate is rotatably connected to the crushing power plate. The buffer connection mechanism is configured to adjust the distance between the upper end of the crushing contact plate and the crushing power plate and thus adjust the inclination angle of the crushing contact plate relative to the crushing power plate. The upper end of the stone size control plate is rotatably connected to the crushing power plate, and the lower end of the stone size control plate is vertically slidably connected to the device housing.

2. The concrete crushing device for building construction according to claim 1, characterized in that: The buffer connection mechanism is a hydraulic telescopic mechanism, one end of the hydraulic telescopic mechanism is hinged to the upper end of the crushing contact plate, and the other end of the hydraulic telescopic mechanism is hinged to the crushing power plate.

3. The concrete crushing device for building construction according to claim 1, characterized in that: A sliding shaft is arranged at the lower end of the stone size control panel, and two guide rails are arranged on the device housing. The two guide rails are arranged vertically and parallel to each other, and a vertical sliding groove is formed between the two guide rails. The sliding shaft can be slidably arranged in the sliding groove.

4. The concrete crushing device for building construction according to claim 1, characterized in that: The lower end of the crushing contact plate and the hinge point of the crushing power plate and the upper end of the stone size control plate and the hinge point of the crushing power plate are coaxial.

5. The concrete crushing device for building construction according to claim 4, characterized in that: The length of the crushing contact plate is greater than the length of the stone size control plate.

6. The concrete crushing device for building construction according to any one of claims 1 to 5, characterized in that: The concrete crushing device for house construction also includes a material guide plate, one end of which is connected to the upper end of the crushing power plate, and the material guide plate is arranged at an angle to guide the material to be crushed into the crushing chamber, and the material guide plate can also cover the upper opening between the crushing contact plate and the crushing power plate.

7. The concrete crushing device for building construction according to any one of claims 1 to 5, characterized in that: The buffer assembly comprises a hydraulic buffer mechanism, the hydraulic buffer mechanism is fixedly connected to the device housing, and the output end of the hydraulic buffer mechanism is connected to the lower end of the crushing power plate through a limiting hinge rod.

8. The concrete crushing device for building construction according to claim 7, characterized in that: The buffer assembly also includes an elastic buffer mechanism, one end of which is hinged to the device housing, and the other end of which is hinged to the lower end of the crushing power plate.

9. The concrete crushing device for building construction according to any one of claims 1 to 5, characterized in that: The concrete crushing device for house construction further comprises a motor, and the motor is configured to drive the transmission shaft to rotate.

10. The concrete crushing device for building construction according to claim 9, characterized in that: The concrete crushing device for house construction further comprises a transmission wheel and a belt. The transmission wheel is arranged on the transmission shaft, and the output shaft of the motor is connected to the transmission wheel through the belt.

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