Sand screening device for building construction

Abstract

The utility model provides a sand screening device for building construction. The sand screening device for building construction comprises a shell, a feeding box and a sand screening mechanism. Supports are connected to a pair of side walls of the shell; the feeding box is arranged on the upper side of the shell, and a pair of connecting frames are fixedly connected between the feeding box and the shell. The sand screening mechanism is mounted in the shell and comprises an outer frame plate, a screen is mounted in the outer frame plate, reciprocating lifting mechanisms are connected to a pair of side walls of the outer frame plate, a cover door is hinged to the side wall of the shell, and workers can conveniently clean impurities filtered on the screen; according to the sand screening device for building construction, through arrangement of corresponding mechanisms, the overall size of the sand screening device can be reduced, then the occupied area of the sand screening device can be reduced, meanwhile, noise-free use of the sand screening device can be achieved, and the sand screening device is convenient to use. And therefore, the harm to the body of a worker is not easily caused.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening devices, in particular to a sand screening device for construction. Background Art

[0002] Construction is a production activity that people use various building materials, mechanical equipment and equipment to build various building products in a certain space and time according to a specific design blueprint. It includes the entire production process from construction preparation, groundbreaking to project completion acceptance, such as foundation construction, main structure construction, roof construction, decoration construction, etc. The place where the construction work is done is called "construction site" or "construction site", also called construction site.

[0003] During construction, sand screening is required to remove large particles of impurities in the sand to ensure the subsequent use of cement concrete. Existing sand screening operations are generally done manually, but manual sand screening is inefficient and labor-intensive for workers. For this reason, various sand screening devices have appeared on the market, such as the Chinese utility model patent with publication number: CN215465992U, which discloses a sand screening device for construction, which is provided with sand screening boxes on both sides, which can meet the sand screening requirements to a certain extent.

[0004] However, the sand screening device is large in size when in use, and easily occupies a large amount of construction space. In addition, the device requires a vibration motor when in use, and the vibration motor generates a lot of noise during operation, which can easily affect the hearing of the workers over time.

[0005] Therefore, it is urgent to redesign a new sand screening device for construction to solve the above problems. Utility Model Content

[0006] The utility model provides a sand screening device for construction to solve the technical problems raised in the above background technology.

[0007] The utility model provides a sand screening device for construction, which comprises a shell, a feed box and a sand screening mechanism;

[0008] The outer shell is connected vertically, and a pair of side walls of the outer shell are connected to brackets;

[0009] The feed box is arranged on the upper side of the outer shell, and a pair of connecting frames are fixedly connected between the feed box and the outer shell;

[0010] The sand screening mechanism is installed in the outer shell, and comprises an outer frame plate, a screen is installed in the outer frame plate, and a pair of side walls of the outer frame plate are both connected with a reciprocating lifting mechanism.

[0011] Optionally, a cover door is hingedly connected to the side wall of the housing to facilitate staff to clean the impurities filtered on the screen;

[0012] An observation panel is provided on the cover door for observing the blockage of the screen so as to clean the screen in time.

[0013] Optionally, the horizontal cross-sectional area of ​​the outer frame plate is smaller than the horizontal cross-sectional area of ​​the outer shell, so that the outer frame plate is not likely to collide with the inner wall of the outer shell when it tilts up and down.

[0014] Optionally, the reciprocating lifting mechanism includes a fixed plate, which is fixedly connected to the side wall of the outer frame plate. A pair of avoidance grooves are cut on the fixed plate to accommodate reinforcing rods so that the outer frame plate and the screen can tilt and reciprocate up and down in the shell to filter sand.

[0015] Optionally, a reinforcing rod is fixedly connected in the avoidance groove, the reinforcing rod is used to install the sliding plate, the sliding plate is slidably connected to the reinforcing rod, and the sliding plate can be fixedly connected to the connecting plate.

[0016] Optionally, a connecting plate is fixedly connected to the sliding plate, and a connecting end is hingedly connected to the connecting plate. Through the mutual cooperation of the connecting plate and the connecting end, the outer frame plate can be tilted and reciprocate up and down in the outer shell to ensure the sand screening effect.

[0017] Optionally, a connecting rod is fixedly connected between the pair of connecting ends, the length of the connecting rod is less than the length of the fixing plate, and the connecting rod is used to connect with the cylinder.

[0018] Optionally, a mounting seat is fixedly connected to the side wall of the outer shell, and a cylinder is installed on the mounting seat. The free end of the cylinder is connected to a connecting rod. When the cylinder contracts, the cylinder pulls the connecting rod, thereby causing one end of the outer frame plate to rise. When the cylinder extends, the cylinder releases the connecting rod, thereby causing one end of the outer frame plate to drop.

[0019] Optionally, a collecting box is provided on the lower side of the shell, the collecting box corresponds to the screen, and the collecting box is used to collect sand filtered by the screen so that the sand can be used later.

[0020] The beneficial effects of the utility model are as follows:

[0021] By setting up corresponding mechanisms, the sand screening device for construction can reduce the overall size of the sand screening device, thereby reducing the floor space occupied by the sand screening device, and can also achieve noiseless use of the sand screening device, thereby not easily causing harm to the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a three-dimensional diagram of a sand screening device for construction provided by the utility model;

[0024] Figure 2 This is a cross-sectional view of a sand screening device for construction provided by the utility model;

[0025] Figure 3 yes Figure 1 A partial enlarged view of the middle A area;

[0026] Figure 4 This is a schematic diagram of the structure of the sand screening mechanism provided by the utility model;

[0027] Figure 5 yes Figure 4 A partial enlarged view of area B in the middle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It is understandable that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for ease of description, only the parts related to the utility model rather than all structures are shown in the drawings. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] See also Figures 1 to 5 The utility model discloses a sand screening device for construction, comprising a shell 1, a feed box 2 and a sand screening mechanism 3.

[0031] The outer shell 1 is connected from top to bottom, and the sand falls onto the screen 302 through the feed box 2 and is collected in the collection box 4 under the filtering effect of the screen 302 .

[0032] In addition, a pair of side walls of the housing 1 are both connected with brackets 101 , and the brackets 101 are used to support the housing 1 .

[0033] Specifically, a cover door 102 is hingedly connected to the side wall of the housing 1 to facilitate the staff to process the impurities filtered on the screen 302 to ensure the continuous use effect of the screen 302.

[0034] In addition, an observation panel is provided on the cover door 102 for observing the blockage of the screen 302 so as to promptly handle the impurities on the screen 302 .

[0035] See also Figures 1 to 5 The feed box 2 is arranged on the upper side of the housing 1, and the feed box 2 is used to add sand. A pair of connecting frames 201 are fixedly connected between the feed box 2 and the housing 1, and the connecting frames 201 are used to fix the feed box 2.

[0036] See also Figures 1 to 5 The sand screening mechanism 3 is installed in the outer shell 1, and the sand screening mechanism 3 is used to filter the sieve, thereby removing impurities in the sieve without affecting the subsequent use of the sand.

[0037] The sand screening mechanism 3 comprises an outer frame plate 301 , and the outer frame plate 301 is used to install a screen 302 . The screen 302 is installed inside the outer frame plate 301 , and the screen 302 can be used to filter impurities in the sand.

[0038] Preferably, the horizontal cross-sectional area of ​​the outer frame plate 301 is smaller than the horizontal cross-sectional area of ​​the outer shell 1 , so that the outer frame plate 301 is not likely to collide with the inner wall of the outer shell 1 when tilting up and down.

[0039] In addition, the thickness of the outer frame plate 301 is greater than the thickness of the screen 302, so that the impurities filtered by the screen 302 can be in the outer frame plate 301, and will not fall into the collection box 4 through the edge of the outer frame plate 301 when the outer frame plate 301 tilts up and down, so as to ensure the filtering effect of sand.

[0040] See also Figures 1 to 5 A pair of side walls of the outer frame plate 301 are connected with a reciprocating lifting mechanism for driving the outer frame plate 301 and the screen 302 to move up and down reciprocatingly so that the screen 302 can better filter the sand and remove impurities in the sand.

[0041] Among them, the reciprocating lifting mechanism includes a fixed plate 303, which is fixedly connected to the side wall of the outer frame plate 301. A pair of avoidance grooves are opened on the fixed plate 303 to accommodate the reinforcing rod 304. That is, when the cylinder 310 reciprocates and extends, the sliding plate 305 can move in the avoidance groove, and will not affect the normal tilting movement of the outer frame plate 301, so as to ensure the sand screening effect of the screen 302.

[0042] In addition, a reinforcing rod 304 is fixedly connected in the avoidance groove, and the reinforcing rod 304 is used to install a sliding plate 305. The sliding plate 305 is slidably connected to the reinforcing rod 304, and the sliding plate 305 can be fixedly connected to the connecting plate 306.

[0043] Specifically, the sliding plate 305 is fixedly connected with a connecting plate 306, and the connecting plate 306 is hingedly connected with a connecting end 307. When the cylinder 310 reciprocates and expands, the connecting plate 306 and the connecting end 307 cooperate with each other, so that the outer frame plate 301 can move up and down in the housing 1 to ensure the sand screening effect.

[0044] In addition, a connecting rod 308 is fixedly connected between the pair of connecting ends 307 . The length of the connecting rod 308 is less than the length of the fixing plate 303 . The connecting rod 308 is used to connect with the cylinder 310 .

[0045] See also Figures 1 to 5 The side wall of the housing 1 is fixedly connected with a mounting seat 309, and a cylinder 310 is mounted on the mounting seat 309, and the free end of the cylinder 310 is connected to the connecting rod 308. When the cylinder 310 contracts, the cylinder 310 pulls the connecting rod 308, thereby raising one end of the outer frame plate 301. When the cylinder 310 extends, the cylinder 310 releases the connecting rod 308, thereby lowering one end of the outer frame plate 301.

[0046] Preferably, a pair of cylinders 310 work asynchronously, that is, when one cylinder 310 contracts, the other cylinder 310 extends, thereby ensuring that the screen 302 moves up and down in the housing 1 to filter impurities in the sand.

[0047] The overall structure of the present application is compact, occupies little space, and does not use a vibration motor for filtering, so the noise is low and will not affect the hearing of the staff. At the same time, the probability of displacement of the housing 1 can also be reduced.

[0048] See also Figures 1 to 5 A collecting box 4 is provided at the lower side of the housing 1, and the collecting box 4 corresponds to the screen 302. The collecting box 4 is used to collect the sand filtered by the screen 302 so as to use the sand later.

[0049] In specific use, when sand screening is required, a pair of cylinders 310 are first controlled to operate asynchronously, that is, when one cylinder 310 contracts, the other cylinder 310 extends. When the cylinder 310 contracts, the cylinder 310 pulls the connecting rod 308, and one end of the outer frame plate 301 rises under the action of the connecting end 307, the connecting plate 306, the sliding plate 305, the reinforcing rod 304 and the avoidance groove. When the other cylinder 310 extends, the cylinder 310 presses the connecting rod 308, and at the same time, one end of the outer frame plate 301 drops under the action of the connecting end 307, the connecting plate 306, the sliding plate 305, the reinforcing rod 304 and the avoidance groove. This cycle is repeated, so that the outer frame plate 301 and the screen 302 can be tilted and moved back and forth in the housing 1.

[0050] The sand to be screened is put into the feed box 2, and the sieve in the feed box 2 falls on the screen 302 under the action of gravity. Since the screen 302 moves up and down reciprocatingly, small particles of sand can directly pass through the screen 302 and fall into the collection box 4, while large particles of impurities will be intercepted by the screen 302 and collected in the outer frame plate 301.

[0051] When the staff observes that there are a lot of impurities on the screen 302 , the operation of the cylinder 310 is stopped, and the cover door 102 is opened to process the impurities on the screen 302 .

[0052] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A sand screening device for construction, characterized in that: include A shell, the shell is through-connected from top to bottom, and a pair of side walls of the shell are both connected to brackets; A feed box is arranged on the upper side of the shell, and a pair of connecting frames are fixedly connected between the feed box and the shell; A sand screening mechanism is installed in the shell, and comprises an outer frame plate, a screen is installed in the outer frame plate, and a pair of side walls of the outer frame plate are both connected with a reciprocating lifting mechanism.

2. A sand screening device for construction according to claim 1, characterized in that: The side wall of the shell is hingedly connected with a cover door, and the cover door is provided with an observation panel.

3. A sand screening device for construction according to claim 1, characterized in that: The horizontal cross-sectional area of ​​the outer frame plate is smaller than the horizontal cross-sectional area of ​​the outer shell.

4. A sand screening device for construction according to claim 1, characterized in that: The reciprocating lifting mechanism comprises a fixing plate, the fixing plate is fixedly connected to the side wall of the outer frame plate, and a pair of avoiding grooves are cut on the fixing plate.

5. A sand screening device for construction according to claim 4, characterized in that: A reinforcing rod is fixedly connected in the avoidance groove, and a sliding plate is slidably connected on the reinforcing rod.

6. A sand screening device for construction according to claim 5, characterized in that: A connecting plate is fixedly connected to the sliding plate, and a connecting end is hingedly connected to the connecting plate.

7. A sand screening device for construction according to claim 6, characterized in that: A connecting rod is fixedly connected between the pair of connecting ends, and the length of the connecting rod is smaller than the length of the fixing plate.

8. A sand screening device for construction according to claim 7, characterized in that: The side wall of the shell is fixedly connected with a mounting seat, a cylinder is mounted on the mounting seat, and a free end of the cylinder is connected to the connecting rod.

9. A sand screening device for construction according to claim 1, characterized in that: A collecting box is provided at the lower side of the shell, and the collecting box corresponds to the screen.

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