阅读说明：本技术 一种砂芯过滤装置 (Sand core filtering device ) 是由 彭钢 赖华 傅鸿 李玉林 刘莉 刘剑 于 2020-06-05 设计创作，主要内容包括：一种砂芯过滤装置,包括过滤机构,包括由上至下依次设置的滤杯,滤头,以及抽滤瓶,滤头顶部设有可拆卸的滤网；夹持机构,用于夹持滤杯和滤头,包括一对对称设置的夹持头,夹持头间距可调,夹持头具有一对上下设置的夹持条,夹持条呈弧形；支撑机构,用于支撑夹持机构,包括支撑杆,支撑杆上套设有可上下移动的支撑块,支撑块连接夹持头；接头,用于连通一对上下设置的过滤机构。本发明过滤时可将大颗粒固体物质截留在滤网上,清洗时将滤网取下,清洗方便,利用夹持头可从两侧对称夹持,防止滤杯和滤头产生偏移,提高密封效果。(A sand core filtering device comprises a filtering mechanism, a sand core filtering mechanism and a sand core filtering mechanism, wherein the filtering mechanism comprises a filter cup, a filter head and a filter flask which are sequentially arranged from top to bottom, and a detachable filter screen is arranged at the top of the filter head; the clamping mechanism is used for clamping the filter bowl and the filter head and comprises a pair of symmetrically arranged clamping heads, the distance between the clamping heads is adjustable, the clamping heads are provided with a pair of clamping strips which are arranged up and down, and the clamping strips are arc-shaped; the supporting mechanism is used for supporting the clamping mechanism and comprises a supporting rod, a supporting block capable of moving up and down is sleeved on the supporting rod, and the supporting block is connected with a clamping head; the joint is used for communicating a pair of filtering mechanisms which are arranged up and down. The filter can trap large-particle solid matters on the filter screen during filtering, takes down the filter screen during cleaning, is convenient to clean, can be symmetrically clamped from two sides by utilizing the clamping heads, prevents the filter bowl and the filter head from deviating and improves the sealing effect.)

1. A sand core filter apparatus, comprising:

the filtering mechanism (1) comprises a filter bowl (101), a filter head (102) and a filter flask (103) which are sequentially arranged from top to bottom, wherein a detachable filter screen (104) is arranged at the top of the filter head (102);

the clamping mechanism (2) is used for clamping the filter bowl (101) and the filter head (102) and comprises a pair of symmetrically arranged clamping heads (201), the distance between the clamping heads (201) is adjustable, the clamping heads (201) are provided with a pair of clamping strips (202) which are arranged up and down, and the clamping strips (202) are arc-shaped;

the supporting mechanism (3) is used for supporting the clamping mechanism (2) and comprises a supporting rod (301), a supporting block (302) capable of moving up and down is sleeved on the supporting rod (301), and the supporting block (302) is connected with the clamping head (201);

and the joint (4) is used for communicating the pair of filtering mechanisms (1) which are arranged up and down.

2. The sand core filtering device of claim 1, wherein: the bottom of the filter bowl (101) is matched with the top of the filter head (102), and the contact surface of the filter bowl (101) and the filter head (102) is a frosted surface.

3. The sand core filtering device of claim 1, wherein: the inner wall of the bottom of the filter head (102) is matched with the outer wall of the top of the filter flask (103), and the contact surface of the filter head (102) and the filter flask (103) is a frosted surface.

4. The sand core filtering device of claim 1, wherein: the edge of the filter screen (104) is provided with a rubber pad (105), and the rubber pad (105) is matched with the inner wall of the filter head (102).

5. The sand core filtering device of claim 1, wherein: the clamping head (201) is also provided with a clamping frame (203), and the clamping strip (202) is detachably arranged on the clamping frame (203).

6. The sand core filtering device of claim 1, wherein: the contact surfaces of the pair of clamping strips (202) with the filter bowl (101) and the filter head (102) are inclined.

7. The sand core filtering device of claim 5, wherein: two ends of one clamping frame (203) are provided with through holes (204), the other clamping frame (203) is provided with a sliding rod (205), the sliding rod (205) is arranged in the through holes (204) in a sliding mode, the end portion of the sliding rod (205) is connected with a nut (206) in a threaded mode, and a spring (207) is arranged between the nut (206) and the clamping frame (203).

8. The sand core filtering device of claim 1, wherein: the supporting block (302) is connected with a locking screw (303) in a threaded manner, the end part of the locking screw (303) is rotatably connected with an arc-shaped anti-skid block (304), and the anti-skid block (304) is matched with the outer wall of the supporting rod (301).

9. The sand core filtering device of claim 5, wherein: t-shaped grooves (305) are formed in the supporting block (302), T-shaped blocks (208) are arranged on the clamping frame (203), the T-shaped blocks (208) are arranged in the T-shaped grooves (305) in a sliding mode, and limiting pins (306) used for fixing the T-shaped blocks (208) are arranged on the supporting block (302).

10. The sand core filtering device of claim 1, wherein: the inner wall of the top of the joint (4) is provided with an annular inner bearing ring (401), the outer wall of the bottom of the joint (4) is provided with an annular outer bearing ring (402), the inner bearing ring (401) is used for bearing the filter head (102), and the outer bearing ring (402) is used for bearing the filter cup (101).

Technical Field

The invention relates to the field of chemical equipment, in particular to a sand core filtering device.

Background

The filtration is a common solid-liquid separation method in experiments, has the characteristics of simplicity, rapidness and high efficiency, and is suitable for a plurality of fields of chemical analysis, health inspection, petroleum industry, pharmaceutical industry, dye industry and the like. The principle of filtration is that a certain porous medium is utilized to separate a solid-liquid mixture, and during filtration, the solid-liquid mixture flows out through a pore channel of the medium under the action of external force, and solid particles are intercepted, so that separation is realized.

The psammitolite filters the solid that utilizes its sieve pore size can the not unidimensional rank of filtering, nevertheless because the aperture of psammitolite filter head is less, leads to filter speed slow, and difficult washing, and simultaneously, common filter bowl and filter head clamping device can only carry out the centre gripping from one side, and filter bowl and filter head produce the aversion easily, cause the device gas leakage, influence the filter effect.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the sand core filtering device, which can intercept large granular solid substances on a filter screen during filtering, take down the filter screen during cleaning, is convenient to clean, can be symmetrically clamped from two sides by utilizing a clamping head, prevents a filter bowl and the filter head from deviating and improves the sealing effect.

In order to achieve the above object, the present invention employs the following techniques:

a sand core filter apparatus comprising:

the filtering mechanism comprises a filter bowl, a filter head and a filter flask which are sequentially arranged from top to bottom, and a detachable filter screen is arranged at the top of the filter head;

the clamping mechanism is used for clamping the filter bowl and the filter head and comprises a pair of symmetrically arranged clamping heads, the distance between the clamping heads is adjustable, the clamping heads are provided with a pair of clamping strips which are arranged up and down, and the clamping strips are arc-shaped;

the supporting mechanism is used for supporting the clamping mechanism and comprises a supporting rod, a supporting block capable of moving up and down is sleeved on the supporting rod, and the supporting block is connected with a clamping head;

the joint is used for communicating a pair of filtering mechanisms which are arranged up and down.

Furthermore, the bottom of the filter bowl is matched with the top of the filter head, and the contact surface of the filter bowl and the filter head is a frosted surface.

Furthermore, the inner wall of the bottom of the filter head is matched with the outer wall of the top of the filter flask, and the contact surface of the filter head and the filter flask is a frosted surface.

Furthermore, the edge of the filter screen is provided with a rubber pad which is matched with the inner wall of the filter head.

Furthermore, the clamping head is also provided with a clamping frame, and the clamping strip is detachably arranged on the clamping frame.

Furthermore, the contact surfaces of the pair of clamping strips, the filter cup and the filter head are inclined.

Furthermore, a through hole is formed in two ends of one of the clamping frames, a sliding rod is arranged on the other clamping frame, the sliding rod is slidably arranged in the through hole, a nut is connected to the end portion of the sliding rod through threads, and a spring is arranged between the nut and the clamping frame.

Furthermore, the supporting block is connected with a locking screw in a threaded manner, the end part of the locking screw is rotatably connected with an arc-shaped anti-skid block, and the anti-skid block is matched with the outer wall of the supporting rod.

Furthermore, a T-shaped groove is formed in the supporting block, a T-shaped block is arranged on the clamping frame and is arranged in the T-shaped groove in a sliding mode, and a limiting pin used for fixing the T-shaped block is arranged on the supporting block.

Furthermore, the inner wall of the top of the joint is provided with an annular inner bearing ring, the outer wall of the bottom of the joint is provided with an annular outer bearing ring, the inner bearing ring is used for bearing the filter head, and the outer bearing ring is used for bearing the filter cup.

The invention has the beneficial effects that:

1. can hold back the large granule solid matter on the filter screen during filtration, take off the filter screen during washing, it is convenient to wash, utilizes the holding head can follow bilateral symmetry centre gripping, prevents that filter bowl and filter head from producing the skew, improves sealed effect.

2. The rubber pad that the filter screen edge set up matches with the filter head inner wall, prevents that the sample from running off in the gap between filter screen and the filter head, because the contact surface of centre gripping strip and filter bowl and filter head is the slope form, makes centre gripping strip and filter bowl and filter head in close contact with under the spring action, improves the leakproofness.

3. The contact surface between filter bowl, filter head and suction flask all adopts the frosting, can prevent that the face of mutual contact from producing the skew on the one hand, and on the other hand can improve the leakproofness, keeps the inside vacuum of filter equipment, improves filtration efficiency.

4. Utilize locking screw to be fixed in the bracing piece with the supporting shoe on, non slipping spur and bracing piece outer wall cooperation can further improve stability, and the holding frame inserts fast through the T-shaped piece and locates the T-shaped inslot, makes things convenient for the installation and the dismantlement of holding frame and supporting shoe, and the practicality is strong.

5. The filter head of the filtering mechanism above can be prevented from being positioned by the joint and is inserted into the filter cup of the filtering mechanism below, so that the sample is adsorbed on the filter head to influence the accuracy of an experimental result.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic view of the filter head structure of the present invention.

FIG. 3 is a schematic view of a clamping mechanism according to the present invention.

FIG. 4 is a schematic view of the support block structure of the present invention.

FIG. 5 is a schematic view of a joint structure according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, a sand core filtering device comprises a filtering mechanism 1, a clamping mechanism 2 for clamping a filter bowl 101 and a filter head 102, a supporting mechanism 3 for supporting the clamping mechanism 2, and a joint 4 for communicating a pair of filtering mechanisms 1 arranged up and down.

The filtering mechanism 1 comprises a filter bowl 101, a filter head 102 and a filter flask 103 which are sequentially arranged from top to bottom, wherein a detachable filter screen 104 is arranged at the top of the filter head 102, a rubber pad 105 is arranged at the edge of the filter screen 104, and the rubber pad 105 is matched with the inner wall of the filter head 102.

Fixture 2 for centre gripping filter bowl 101 and filter head 102, including the centre gripping head 201 that a pair of symmetry set up, centre gripping head 201 interval is adjustable, centre gripping head 201 has a pair of centre gripping strip 202 that sets up from top to bottom, centre gripping strip 202 is the arc, centre gripping head 201 still has holding frame 203, centre gripping strip 202 detachable locates on holding frame 203, a pair of centre gripping strip 202 is the slope form with the contact surface of filter bowl 101 and filter head 102, perforation 204 has been seted up at one of them holding frame 203 both ends, be equipped with slide bar 205 on another holding frame 203, slide bar 205 slides and locates in perforation 204, slide bar 205 tip threaded connection has nut 206, be equipped with spring 207 between nut 206 and the holding frame 203.

The supporting mechanism 3 is used for supporting the clamping mechanism 2 and comprises a supporting rod 301, a supporting block 302 capable of moving up and down is sleeved on the supporting rod 301, and the supporting block 302 is connected with the clamping head 201.

During filtering, the filter bowl 101 and the filter head 102 are fixed by the clamping mechanism 2, the bottom end of the filter head 102 is connected with the filter flask 103, the filter screen 104 is arranged at the top of the filter head 102, the rubber pad 105 arranged at the edge of the filter screen 104 is matched with the inner wall of the filter head 102 to prevent a sample from losing from a gap between the filter screen 104 and the filter head 102, the filter flask 103 is connected with a vacuum pump for filtering, large-particle solid matters are intercepted on the filter screen 104, small-particle solid matters enter the pore diameter in the filter head 102 to be intercepted, so that the separation from liquid is realized, the filter screen 104 can be taken down during cleaning, and the filter head 102 is convenient to clean due to small solid particles; the clamping mechanism 2 comprises a pair of symmetrically arranged clamping heads 201 which can symmetrically clamp the filter bowl 101 and the filter head 102 from two sides, prevent the offset and improve the sealing effect, and a sliding rod 205 is arranged in a through hole 204 in a sliding way and is fastened by a nut 206; because the contact surfaces of the clamping bar 202 with the filter bowl 101 and the filter head 102 are inclined, the clamping bar 202 is in close contact with the filter bowl 101 and the filter head 102 under the action of the spring 207, and the sealing performance is improved.

Furthermore, the bottom of the filter bowl 101 is matched with the top of the filter head 102, the contact surface of the filter bowl 101 and the filter head 102 is a frosted surface, the inner wall of the bottom of the filter head 102 is matched with the outer wall of the top of the filter flask 103, and the contact surface of the filter head 102 and the filter flask 103 is a frosted surface.

The contact surfaces among the filter bowl 101, the filter head 102 and the filter flask 103 are frosted surfaces, so that the surfaces in mutual contact can be prevented from deviating, the sealing performance can be improved, the vacuum degree in the filter device can be kept, and the filtering efficiency can be improved.

Further, as shown in fig. 4, a locking screw 303 is connected to the supporting block 302 in a threaded manner, an arc-shaped anti-slip block 304 is rotatably connected to the end of the locking screw 303, the anti-slip block 304 is matched with the outer wall of the supporting rod 301, a T-shaped groove 305 is formed in the supporting block 302, a T-shaped block 208 is arranged on the clamping frame 203, the T-shaped block 208 is slidably arranged in the T-shaped groove 305, and a limit pin 306 for fixing the T-shaped block 208 is arranged on the supporting block 302.

After the position of the supporting block 302 is adjusted, the supporting block is fixed on the supporting rod 301 through the locking screw 303, and the arc-shaped anti-skidding block 304 is matched with the outer wall of the supporting rod 301, so that the stability can be further improved; the clamping frame 203 is rapidly inserted into the T-shaped groove 305 through the T-shaped block 208 and is fixed by the limiting pin 306, so that the clamping frame 203 and the supporting block 302 are convenient to mount and dismount, and the practicability is high.

Further, as shown in fig. 5, the inner wall of the top of the joint 4 is provided with an annular inner receiving ring 401, the outer wall of the bottom of the joint 4 is provided with an annular outer receiving ring 402, the inner receiving ring 401 is used for receiving the filter head 102, and the outer receiving ring 402 is used for receiving the filter bowl 101.

The inner bearing ring 401 and the outer bearing ring 402 are respectively used for bearing the filter head 102 and the filter bowl 101, so that the filter head 102 of the filter mechanism 1 positioned above can be prevented from being inserted into the filter bowl 101 of the filter mechanism 1 positioned below, and a sample is adsorbed on the filter head 102 to influence the accuracy of an experimental result.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.