Feeding device for civil engineering sand screening equipment, sand screening equipment and method

Abstract

The invention discloses a feeding device for civil engineering sand screening equipment, the sand screening equipment and a method, solves the problem that in the prior art, a feeding assembly cannot be disassembled, and has the beneficial effect that the feeding assembly is convenient to disassemble and assemble, and according to the specific scheme, the feeding device for the civil engineering sand screening equipment comprises the feeding assembly; the feeding assembly is provided with an inclined feeding slope, dismounting mechanisms are arranged between the upper side and the shell and between the lower side of the feeding assembly and the shell, fixing grooves are formed in the sides, facing the shell, of the upper side and the lower side of the feeding assembly correspondingly, each dismounting mechanism comprises a bent fixing part, and the fixing parts are located in the fixing grooves and can move along the fixing grooves. One side of the fixing part penetrates through the fixing groove and can be inserted into the clamping groove of the shell, the fixing part is hollow, a pulling part is arranged at the hollow position of the fixing part, one end of the pulling part penetrates through the fixing part and is exposed out of the feeding assembly, the other end of the pulling part penetrates through the fixing part and is connected with a limiting part, and the limiting part can be connected with a limiting groove in the side wall of the clamping groove in a clamped mode.

Description

Technical Field

[0001] The invention relates to the field of sand screening devices, in particular to a feeding device for civil engineering sand screening equipment, sand screening equipment and a method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Civil engineering is a general term for the science and technology of building various types of engineering facilities. It refers not only to the materials and equipment used, and the technical activities such as survey, design, construction, maintenance, and repair carried out, but also to the objects of engineering construction. At present, sand screening is an indispensable task at construction sites such as roads, bridges, and houses.

[0004] During the use of the civil engineering sand screening device, the civil engineering sand screening device in the existing technology still has some shortcomings. The feed port of the existing civil engineering sand screening device is directly located above the machine body, and the sand directly falls into the machine body and contacts the screening mechanism. The speed is fast and it is easy to cause damage to the screening mechanism. Therefore, it is necessary to install the feed assembly to the side of the machine body. However, after the feed assembly is installed on the side, there are the following problems:

[0005] The feed assembly is fixed and cannot be disassembled. In a high-intensity use environment, the feed assembly is easily damaged and cannot be replaced after damage, which directly affects the processing efficiency. Secondly, because the sand screening equipment needs to be moved, the screening mechanism fixed on the side of the machine body is not easy to disassemble, which is not conducive to transportation.

[0006] In addition, the existing sand screening equipment has the following problems:

[0007] The screening mechanism is fixed and cannot be disassembled relative to the machine body;

[0008] The vibration mechanism is arranged on the side of the machine body, which occupies a large space;

[0009] The discharge volume of the first discharge port cannot be adjusted. Summary of the invention

[0010] In view of the deficiencies in the prior art, an object of the present invention is to provide a feeding device for civil engineering sand screening equipment, which can realize convenient replacement of feeding components.

[0011] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0012] A feeding device for civil engineering sand screening equipment includes a feeding assembly, the feeding assembly is provided with an inclined feeding slope, a disassembly mechanism is provided between the upper side and the lower side of the feeding assembly and a shell body, a fixing groove is provided on the upper side and the lower side of the feeding assembly facing the shell body, the disassembly mechanism includes a bent fixing piece, the fixing piece is located in the fixing groove and can move along the fixing groove, one side of the fixing piece passes through the fixing groove and can be inserted into a slot of the shell body, the fixing piece is hollow, a pulling piece is provided in the hollow part of the fixing piece, one end of the pulling piece passes through the fixing piece and is exposed at the feeding assembly, the other end of the pulling piece passes through the fixing piece and is connected with the limiting piece, and the limiting piece can be engaged with the limiting groove of the side wall of the slot.

[0013] In the feeding device for civil engineering sand screening equipment as described above, the limiting grooves are arranged on the upper and lower sides of the clamping slot, and the pulling member is provided with two heads, which respectively pass through the fixing member and are connected with the corresponding limiting members.

[0014] In the feeding device for civil engineering sand screening equipment as described above, the limiting member is a limiting block, the limiting block is engaged with the limiting groove, a limiting plate is arranged between the limiting block and the pulling member, and the side length or diameter of the limiting plate is greater than the side length or diameter of the limiting block;

[0015] The fixing piece is provided with a connecting groove, and the head of the pulling piece passes through the connecting groove and is connected to the limiting plate. The side length or diameter of the limiting plate is greater than the side length or inner diameter of the connecting groove. A tension spring is provided on the inner wall of the connecting groove, and one end of the tension spring is connected to the limiting plate. The setting of the limiting plate makes the limiting piece exposed at the connecting groove of the fixing piece, and the limiting piece will not be pulled out of the fixing piece under the action of external force.

[0016] As described above, in a feeding device for civil engineering sand screening equipment, the pulling member also includes a pulling body connected to the head, a rotatable shaft is arranged in the hollow part inside the fixing member, and the shaft is located at the connection between the pulling member head and the pulling body, and the arrangement of the shaft is conducive to the pulling of the pulling member.

[0017] In the feeding device for civil engineering sand screening equipment as described above, the pulling member is a pulling rope, and a pull ring is provided at one end of the pulling member exposed to the fixing member;

[0018] A return spring is fixed between the fixing groove and a side of the fixing member away from the clamping groove, and the setting of the return spring facilitates the rapid return of the limiting member.

[0019] In a second aspect, the present invention further provides a civil engineering sand screening device, comprising a machine body, the machine body comprising a shell, a screening mechanism is arranged in the shell, a feeding device for the civil engineering sand screening device is arranged at the top of one side of the shell, and a first discharge port is arranged at the bottom of the shell;

[0020] The screening mechanism comprises at least one layer of screen plate, the shell is provided with an insertion port, rollers are respectively provided at the inner wall of the shell and the insertion port, the screen plate is obliquely inserted into the inner side of the shell through the insertion port, and the screen plate is supported by the rollers.

[0021] In the civil engineering sand screening equipment as described above, an adjustment mechanism is arranged at the first discharge port, and the adjustment mechanism includes a sliding column, which is fixed at the first discharge port of the shell, and a sliding plate is arranged through the sliding column.

[0022] A civil engineering sand screening device as described above, wherein the bottom of the shell is inclined, the bottom of the shell is supported by a base, a vibration transmission component is arranged between the base and the shell, the vibration transmission component is connected to the vibration mechanism, and the inclined part of the bottom of the shell is inclined toward the first discharge port;

[0023] The shell is provided with a second discharge port at a lower position of a part of the sieve plate, and a discharge assembly is provided at the second discharge port. The discharge assembly is detachably arranged relative to the shell, and the discharge assembly is arranged opposite to the feed assembly.

[0024] In the civil engineering sand screening equipment as described above, a storage trough is arranged on the top of the shell, and the feed assembly, the discharge assembly and the screen plate can be placed in the storage trough after being disassembled relative to the shell, and a flip-up box cover is arranged on the top of the storage trough of the shell.

[0025] In a third aspect, the present invention further provides a working method of a civil engineering sand screening device, comprising the following contents:

[0026] The base supports the shell, a screening mechanism is arranged in the shell, and a slot is arranged in the shell at the installation position of the feed assembly;

[0027] When the feed assembly needs to be installed relative to the shell, the pulling member pulls the limiting member so that the limiting member is located at the fixing member, the fixing groove of the feed assembly is aligned with the card slot, the feed assembly is pushed so that the fixing member is inserted into the card slot, and the pulling member is released so that the limiting member at one end of the pulling member is engaged with the limiting groove;

[0028] When the feed assembly needs to be disassembled relative to the shell, the pulling member is tightened from the side of the pulling member exposed to the fixing member to make the limiting member disengage from the limiting groove. The pulling is continued to make the limiting member enter the fixing member, and the feed assembly is moved so that the fixing member moves in a direction away from the shell, thereby realizing the disassembly of the feed assembly.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1) In the present invention, the feed assembly is disassembled from the shell through a disassembly mechanism, which makes it easy to install the feed assembly on the side of the shell, thereby increasing the practicability of the device. The fixing piece is bent and one end can be inserted into the slot of the shell after passing through the fixing slot, and the other end is arranged beyond the fixing slot to facilitate the operation of the fixing piece. A pulling piece is arranged inside the fixing piece, and the pulling piece is connected to the limiting piece. The pulling piece moves relative to the fixing piece to realize the engagement or disengagement of the limiting piece with respect to the limiting slot, thereby allowing the feed assembly to be installed on the shell or to be disconnected from the shell. The overall operation is convenient, so that the feed assembly can be conveniently replaced, thereby increasing the practicability of the device.

[0031] 2) The present invention utilizes the function of the fixing groove, wherein the top of the fixing groove is open, and the side facing the slot is also open, so that the fixing piece can pass through the fixing groove and is convenient for the fixing piece to slide inside the feeding assembly, and then the pulling piece is driven by the fixing piece to move relative to the slot, and the limiting of the limiting piece is released by the movement, thereby realizing the disassembly of the feeding assembly.

[0032] 3) In the present invention, limiting grooves are provided on the upper and lower sides of the card slot, connecting grooves are provided on both sides of the fixing piece, and two heads are provided on the fixing piece. Each head can move along the corresponding connecting groove to ensure the stable connection between the limiting piece and the shell. The limiting plate connects the limiting piece and the head of the pulling piece, so that the limiting piece is exposed at the connecting groove of the fixing piece, and the limiting piece will not be pulled out of the fixing piece under the action of external force; a tension spring is provided at the connecting groove to facilitate the return of the limiting piece.

[0033] 4) In the present invention, an adjustment mechanism is provided at the first discharge port of the shell to adjust the flow rate of the first discharge port.

[0034] 5) The sand screening equipment in the present invention is provided with at least one layer of sieve plate, which is detachable relative to the shell. Rollers are provided on the insertion port and the shell to facilitate the insertion of the sieve plate into or withdrawal from the shell. A discharge assembly is provided at a part of the sieve plate in the shell, so that the discharge of the set particle size sieve can be achieved, and the finest screened sand is discharged from the first discharge port at the bottom; the vibration mechanism and the vibration transmission assembly are arranged at the bottom of the shell and are reasonably arranged. They are not arranged on the side of the body, so that the overall footprint of the equipment is small; a storage trough is provided on the top of the shell, and the disassembled feeding assembly and discharging assembly can be temporarily stored in the storage trough, and the structural arrangement is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0036] Figure 1 It is a front view of a feeding device for civil engineering sand screening equipment according to one or more embodiments of the present invention.

[0037] Figure 2 The present invention is a top view of a feeding device for civil engineering sand screening equipment according to one or more embodiments.

[0038] Figure 3 It is an enlarged schematic diagram of a partial structure of a feeding device for civil engineering sand screening equipment according to one or more embodiments of the present invention.

[0039] Figure 4 The present invention Figure 3 A magnified schematic diagram of center A.

[0040] Figure 5 It is an enlarged schematic diagram of an adjustment mechanism in a feeding device for civil engineering sand screening equipment according to one or more embodiments of the present invention.

[0041] Figure 6 It is a front view of a shell of a civil engineering sand screening device according to one or more embodiments of the present invention.

[0042] Figure 7 It is an enlarged schematic diagram of a top side structure of a shell in a civil engineering sand screening device according to one or more embodiments of the present invention.

[0043] Figure 8 It is an enlarged schematic diagram of a base and a vibration mechanism in a civil engineering sand screening device according to one or more embodiments of the present invention.

[0044] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0045] Among them: 1. body; 110. shell; 111. feed assembly; 112. first discharge port; 113. discharge assembly; 114. insertion port; 115. roller; 2. disassembly mechanism; 210. fixing groove; 211. reset spring; 212. fixing plate; 213. handle; 214. slot; 215. round hole; 310. connection groove; 311. tension spring; 312. limit block; 313. pull rope ; 314, limit groove; 315, rotating shaft; 316, limit plate; 317, pull ring; 4, adjustment mechanism; 410, sliding column; 411, sliding plate; 412, handle; 5, disassembled parts storage box; 510, box cover; 511, connecting rotating shaft; 512, storage slot; 513, switch handle; 6, sieve plate; 7, base; 710, low base; 711, high base; 8, vibration transmission component; 9, vibration motor. DETAILED DESCRIPTION

[0046] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the present invention explicitly states otherwise, singular forms are also intended to include plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] As introduced in the background technology, the problem that the feeding assembly of the civil engineering sand screening equipment in the prior art is not easy to disassemble. In order to solve the above technical problem, the present invention proposes a feeding device for the civil engineering sand screening equipment.

[0049] Embodiment 1

[0050] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a feeding device for civil engineering sand screening equipment includes a body 1, the body 1 includes a shell 110, a feeding assembly 111 is arranged on the surface of the shell 110, and the feeding assembly 111 can be detachably installed at the shell 110 through a disassembly mechanism 2; the longitudinal section of the feeding assembly 111 is U-shaped, and the bottom of the feeding assembly 111 is a feeding slope inclined downward, which is convenient for materials to enter the shell 110, and the upper side and the lower side of the feeding assembly 111 are both provided with a disassembly mechanism, reference Figure 2 As shown, two disassembly mechanisms 2 are provided on both sides of the feeding assembly 111 .

[0051] refer to Figure 3 As shown, a fixing groove 210 is respectively provided on one side of the feed component 111 facing the shell 110, and the fixing groove 210 is opened on the upper side and the lower side of the feed component 111. The disassembly mechanism 2 includes a bent fixing member, which is located in the fixing groove and can move along the fixing groove. The fixing member is specifically an L-shaped fixing plate 212. The top of the fixing groove 210 is open, and the side of the fixing groove 210 facing the card slot is also open. One side of the fixing member can pass through the fixing groove and can be inserted into the card slot of the shell 110. The fixing member is hollow, and a pulling member is provided at the hollow part of the fixing member. One end of the pulling member passes through the fixing member and is exposed at the feed component, and the other end of the pulling member passes through the fixing member and is connected with the limiting member. The limiting member can be engaged and connected with the limiting groove of the side wall of the card slot; through the action of the fixing groove 210, it is convenient to slide the fixing plate 212 inside the feed component 111, and the limit of the limiting member is released by the movement of the fixing plate 212.

[0052] A support plate is arranged at the top of the fixing plate 212, and the side length of the support plate is greater than the side length of the fixing plate, so that a handle 213 is formed at the top of the fixing plate, and a non-slip cover is arranged on the surface of the handle 213, and the material of the non-slip cover is rubber material.

[0053] In this embodiment, the pulling member is provided with two heads, and the two heads are respectively connected to the corresponding limiting members through the fixing members; the pulling member also includes a pulling body connected to the head, and the pulling member is specifically a pull rope 313. A rotatable shaft is provided in the hollow part inside the fixing member, and the shaft 315 is located at the connection between the pulling member head and the pulling body. The setting of the shaft is conducive to the pulling of the pulling member. Through the setting of the shaft, the wear of the pull rope 313 can be reduced after being pulled, thereby increasing the service life of the structure.

[0054] It should be noted that the shell 110 is provided with a slot 214, and a circular hole 215 is provided on the side of the slot 214 away from the shell 110. The fixing plate 212 passes through the circular hole and enters the slot. Under the action of the return spring 211, the feeding assembly 111 is more convenient to install, thereby increasing the practicality of the equipment.

[0055] It is easy to understand that a return spring 211 is disposed between the fixing plate 212 and a side of the fixing slot 210 away from the clamping slot, and the return spring 211 may be provided in one group or two groups.

[0056] refer to Figure 4 As shown, a connecting groove 310 is provided on the upper and lower sides of the fixing member exposed at one end of the fixing groove, and a limiting groove 314 is respectively provided on the upper and lower sides of the slot of the shell 110, and the limiting groove can be aligned with the connecting groove, and a tension spring 311 is fixedly connected to the inner wall of the connecting groove 310, and one end of the tension spring 311 away from the connecting groove 310 is fixedly connected to the limiting member, and the limiting member is specifically a limiting block 312, and a pulling member is fixedly connected to the bottom end of the limiting block 312, and the pulling member is specifically an elastic pull rope 313, and the engagement of the limiting block 312 and the limiting groove 314 facilitates the position of the feeding component 111 to be more firmly fixed, thereby effectively preventing the feeding component 111 from being offset.

[0057] It should be noted that a limit plate 316 is arranged between the limit block and the pulling member, the side length or diameter of the limit plate 316 is larger than the side length or diameter of the limit block, the head of the pulling member passes through the connecting groove and is connected to the limit plate, the side length or diameter of the limit plate is larger than the side length or inner diameter of the connecting groove, a tension spring 311 is arranged on the inner wall of the connecting groove, one end of the tension spring 311 is connected to the limit plate, and the setting of the limit plate makes the limit member exposed at the connecting groove of the fixing member, and the limit member will not be pulled out of the fixing member under the action of external force.

[0058] In some examples, a pull ring 317 is fixedly installed at one end of the pull rope 313 away from the limiting block 312 , and the outer diameter of the pull ring 317 is larger than the inner diameter of the hollow part of the fixing member.

[0059] The feeding device provided in this embodiment is characterized in that the feeding component is disassembled from the shell through a disassembly mechanism, so that the feeding component can be conveniently installed on the side of the shell, thereby increasing the practicability of the equipment. The fixing piece is bent and arranged, and one end can be inserted into the slot of the shell after passing through the fixing slot, and the other end is arranged beyond the fixing slot to facilitate the operation of the fixing piece. A pulling piece is arranged inside the fixing piece, and the pulling piece is connected to the limiting piece. The pulling piece moves relative to the fixing piece to realize the engagement or disengagement of the limiting piece with respect to the limiting slot, so that the feeding component can be installed on the shell or the connection relationship with the shell can be released, and the overall operation is convenient.

[0060] Embodiment 2

[0061] The present embodiment discloses a civil engineering sand screening device, including a machine body 1, the machine body 1 includes a shell, a screening mechanism is arranged in the shell 110, a feeding device for the civil engineering sand screening device described in the first embodiment is arranged on the side of the shell, and a first discharge port 112 is arranged at the bottom of the shell.

[0062] refer to Figure 1 and Figure 4 As shown, an adjustment mechanism 4 is provided at the first discharge port 112, and the adjustment mechanism 4 includes a sliding column 410, and the sliding column 410 is fixedly installed on the surface of the first discharge port 112. The sliding column 410 is hollow, and a sliding hole is provided in the horizontal direction of the sliding column 410. A sliding plate 411 is slidably connected inside the sliding hole, and a handle 412 is fixedly connected to the end of the sliding plate 411 away from the sliding column 410. The sliding plate 411 is in the shape of a long plate, and slides inside the sliding column 410 through the sliding plate 411, thereby facilitating the control of the first discharge port 112, thereby increasing the practicability of the equipment.

[0063] In this embodiment, the shell 110 is provided with three insertion ports 114 at a position lower than the feeding assembly, and rollers 115 are respectively provided on the inner wall of the shell and the insertion ports, and the rollers are rotatable relative to the shell. The sieve plate 6 is tilted and inserted into the inner side of the shell 110 through the insertion port 114, and the sieve plate 6 is supported by the rollers 115. The position of the rollers inside the shell supporting the same sieve plate is lower than the rollers at the corresponding insertion ports, and sieve plates 6 of different specifications are inserted through the three-layer insertion ports. From top to bottom, the inner diameter of the sieve holes of the sieve plate gradually decreases. When sieve plates 6 of different specifications are inserted into the shell 110 through the insertion ports 114 in the order of decreasing sieve hole sizes from top to bottom, the sieve plates 6 of different specifications are arranged at a set inclination angle, and a sufficiently long screening path ensures the adequacy of screening, thereby realizing multi-particle size classification of sand.

[0064] refer to Figure 6As shown, the top and bottom of the shell 110 are both inclined, a feed assembly 111 is arranged on one side of the shell 110, and a second discharge port is arranged on the opposite side of the feed assembly of the shell 110, and the second discharge port can be placed at a lower position of the middle layer screen plate, and a discharge assembly is arranged at the second discharge port, and the bottom of the discharge assembly 113 is horizontally arranged, and the longitudinal cross-section of the discharge assembly 113 is U-shaped, and the upper and lower sides of the discharge assembly are detachably arranged relative to the shell, and the detachable manner is the same as the detachable manner of the feed assembly relative to the shell, which will not be repeated here.

[0065] refer to Figure 7 As shown, the top of the shell 110 is tilted, and a disassembled parts storage box 5 is arranged on the top of the shell 110. Specifically, a storage slot 512 is formed on the top of the shell, and one side of the storage slot 512 exceeds the shell setting so that the sieve plate 6 can be arranged in the storage slot 512. When in use, sieve plates of different specifications are selected according to needs. The feeding assembly and the sieve plate can be placed in the storage slot after being disassembled relative to the shell. The shell is provided with a flippable box cover 510 on the top of the storage slot, and one side of the box cover is connected to the higher side of the shell by a connecting shaft 511. The feeding assembly 111 and the discharging assembly 113 can also be placed between the box cover and the sieve plate, and a switch handle 513 is also provided on the side of the box cover 510. The box cover 510 is rotated around the connecting shaft 511 by pulling the switch handle 513, so that the disassembled parts storage box 5 can be quickly and conveniently opened and closed.

[0066] refer to Figure 8 As shown, the bottom of the shell 110 is also tilted downward, and the shell is supported by the base 7. The base 7 includes a low base 710 and a high base 711 that are relatively arranged. The low base 710 is connected to the shell through a spring group, and the high base 711 supports the vibration transmission component 8. The vibration transmission component 8 includes an L-shaped bottom plate, and the L-shaped bottom plate is connected to the bottom of the shell through a spring group. Further, a first discharge port 112 is set on one side of the vibration transmission component 8, and the side wall of the first discharge port is connected to the inclined bottom side of the shell, thereby increasing the integrity of the entire screening device; a vibration mechanism is set on the inner side of the high base 711, and the vibration mechanism is specifically a vibration motor 9. The vibration motor 9 is installed through the high base 711, and the working end of the vibration motor is connected to the L-shaped bottom plate of the vibration transmission component 8. When the vibration motor is working, the vibration is directly transmitted to the spring group connecting the vibration transmission component 8 and the bottom of the shell through the bottom of the vibration transmission component 8, thereby improving the transmission efficiency of the vibration.

[0067] A working method of civil engineering sand screening equipment, comprising the following contents:

[0068] The base supports the shell, a screening mechanism is arranged in the shell, and a card slot is arranged at the installation position of the feed component of the shell.

[0069] When the feed assembly 111 needs to be disassembled conveniently, the staff first pulls the pull ring on the surface of the pull rope 313 to shrink the limit block 312 into the connecting groove 310. At this time, the limit on the fixed plate 212 is released, and then the handle 213 is pushed away from the shell 110 to drive the fixed plate 212 to move in the fixed groove 210 away from the shell 110. When the fixed plate 212 is out of the card slot 214, the convenient disassembly of the feed assembly 111 is completed.

[0070] When the position of the feed component 111 needs to be reinforced, the staff first pulls the pull rope 313 to make the limit block 312 shrink to the inside of the connecting groove 310. Under the action of the tension spring 311, the limit block 312 is in the connecting groove, and the handle 213 drives the fixed plate 212 to be moved toward the direction of the slot 214, so that the fixed plate 212 is plugged and connected to the inside of the slot 214. At this time, the pull ring is released, and the limit block 312 is reset through the action of the tension spring 311, and the limit block 312 is engaged with the inside of the limit slot 314, thereby completing the reinforcement of the position of the feed component 111.

[0071] When it is necessary to adjust and control the first discharge port 112, the staff first pulls the handle 412 in the direction of the sliding plate 411, so that the handle 412 drives the sliding plate 411 to move accordingly, and under the action of the sliding column 410, the sliding plate 411 slides inside the sliding column 410 to below the first discharge port 112, thereby completing the adjustment and control of the first discharge port 112.

[0072] Through the rolling effect of the roller 115, the middle sieve plate is slowly pulled out, so that the sand on the middle sieve plate flows to the lowest sieve plate. Since the particle size of the sand sieved by the middle sieve plate is larger than the sieve hole size of the lowest sieve plate and the sieve plate has a certain inclination angle, the sand on the middle sieve plate can smoothly flow out of the second discharge port along the lowest sieve plate. Similarly, the sand sieved by the uppermost sieve plate can be obtained. After the sand is classified and collected, the lowest sieve plate is pulled out.

[0073] Lifting the switch handle 513 allows the box cover 510 to rotate around the connecting shaft 511, opening the disassembled parts storage box 5, and placing the sieve plates 6 of different specifications, the feeding assembly 111 and the discharging assembly in sequence into the storage slot 512, so as to realize the storage of the disassembled parts and reduce the occupation of the external space.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding device for civil engineering sand screening equipment, characterized in that: It includes a feed component, which is provided with an inclined feed slope. Disassembly mechanisms are provided between the upper and lower sides of the feed component and the shell body. Fixed grooves are respectively provided on the upper and lower sides of the feed component facing the shell body. The disassembly mechanism includes a bent fixing member, which is located in the fixing groove and can move along the fixing groove. One side of the fixing member passes through the fixing groove and can be inserted into the slot of the shell. The fixing member is hollow, and a pulling member is provided in the hollow part of the fixing member. One end of the pulling member passes through the fixing member and is exposed at the feed component, and the other end of the pulling member passes through the fixing member and is connected with the limiting member. The limiting member can be engaged with the limiting groove of the side wall of the slot.

2. A feeding device for civil engineering sand screening equipment according to claim 1, characterized in that: The limiting grooves are arranged on the upper side and the lower side of the card slot, and the pulling member is provided with two heads, which respectively pass through the fixing members and are connected with the corresponding limiting members.

3. A feeding device for civil engineering sand screening equipment according to claim 2, characterized in that: The limiting member is a limiting block, which is engaged with the limiting groove, and a limiting plate is arranged between the limiting block and the pulling member, and the side length or diameter of the limiting plate is greater than the side length or diameter of the limiting block; The fixing member is provided with a connecting groove, the head of the pulling member passes through the connecting groove and is connected to the limiting plate, the side length or diameter of the limiting plate is larger than the side length or inner diameter of the connecting groove, a tension spring is provided on the inner wall of the connecting groove, and one end of the tension spring is connected to the limiting plate.

4. A feeding device for civil engineering sand screening equipment according to claim 2, characterized in that: The pulling member also includes a pulling body connected to the head. A rotatable shaft is arranged in the hollow part inside the fixing member, and the shaft is located at the connection between the pulling member head and the pulling body.

5. A feeding device for civil engineering sand screening equipment according to claim 2, characterized in that: The pulling member is a pulling rope, and a pull ring is arranged at one end of the pulling member exposed to the fixing member; A return spring is fixed between a side of the fixing piece away from the clamping slot and the fixing slot.

6. A civil engineering sand screening device, characterized in that: The machine body comprises a housing, a screening mechanism is arranged in the housing, a feeding device for civil engineering sand screening equipment according to any one of claims 1 to 5 is arranged on the top of one side of the housing, and a first discharge port is arranged at the bottom of the housing; The screening mechanism comprises at least one layer of screen plate, the shell is provided with an insertion port, rollers are respectively provided at the inner wall of the shell and the insertion port, the screen plate is obliquely inserted into the inner side of the shell through the insertion port, and the screen plate is supported by the rollers.

7. A civil engineering sand screening device according to claim 6, characterized in that: An adjusting mechanism is arranged at the first discharge port, and the adjusting mechanism comprises a sliding column, the sliding column is fixed at the first discharge port of the shell, and the sliding plate passes through the sliding column.

8. The civil engineering sand screening equipment according to claim 6, characterized in that: The bottom of the shell is tilted and supported by a base. A vibration transmission component is arranged between the base and the shell, and the vibration transmission component is connected to the vibration mechanism. The shell is provided with a second discharge port at a lower position of a part of the sieve plate, and a discharge assembly is provided at the second discharge port. The discharge assembly is detachably arranged relative to the shell, and the discharge assembly is arranged opposite to the feed assembly.

9. A civil engineering sand screening device according to claim 8, characterized in that: A storage trough is arranged on the top of the shell, and the feed assembly and the screen plate can be placed in the storage trough after being disassembled relative to the shell. A flip-over box cover is arranged on the top of the storage trough of the shell.

10. A working method of civil engineering sand screening equipment according to claim 6, characterized in that: It includes the following: The base supports the shell, a screening mechanism is arranged in the shell, and a slot is arranged in the shell at the installation position of the feed assembly; When the feed assembly needs to be installed relative to the shell, the pulling member pulls the limiting member so that the limiting member is located at the fixing member, the fixing groove of the feed assembly is aligned with the card slot, the feed assembly is pushed so that the fixing member is inserted into the card slot, and the pulling member is released so that the limiting member at one end of the pulling member is engaged with the limiting groove; When the feed assembly needs to be disassembled relative to the shell, the pulling member is tightened from the side of the pulling member exposed to the fixing member to make the limiting member disengage from the limiting groove. The pulling is continued to make the limiting member enter the fixing member, and the feed assembly is moved so that the fixing member moves in a direction away from the shell, thereby realizing the disassembly of the feed assembly.

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