CN212712822U

CN212712822U - Filter joint

Info

Publication number: CN212712822U
Application number: CN202021117033.1U
Authority: CN
Inventors: 柯泉清
Original assignee: Wenling Chuangyi Pneumatic Tools Co ltd
Current assignee: Wenling Chuangyi Pneumatic Tools Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-16
Anticipated expiration: 2030-06-16

Abstract

The utility model provides a filter joint belongs to mechanical technical field. The filter joint comprises a gas inlet pipe and a gas outlet pipe which are coaxially arranged, wherein the upper end of the gas inlet pipe is hermetically and fixedly connected with the lower end of the gas outlet pipe, a partition plate is integrally formed in the gas inlet pipe, an inner cavity of the gas inlet pipe is divided into an upper cavity and a lower cavity by the partition plate, a barrel is integrally formed on the top wall of the partition plate, the top wall of the barrel is in close contact with the inner wall of the gas outlet pipe to form a seal, the inner cavity of the barrel is communicated with the gas outlet pipe, a closed annular cavity is formed among the outer wall of the barrel, the inner wall of the gas outlet pipe and the inner; the filter element is arranged in the annular cavity, gas in the annular cavity flows into the gas outlet through the filter element, the side wall of the upper cavity is also provided with a radial through hole through which the filter element can extend out of the upper cavity, a cylinder body is detachably fixed in the radial through hole in a sealing manner, and the inner end of the cylinder body extends into the annular cavity and is fixedly connected with the filter element. This filtering joint is convenient for maintain.

Description

Filter joint

Technical Field

The utility model belongs to the technical field of machinery, a filter joint is related to, especially an use at the filter joint of air compressor machine.

Background

An air compressor is a device for compressing gas, and is a device for converting mechanical energy of a motive power (usually a motor) into gas pressure energy. The device mainly comprises a gas circuit circulating system, a water circuit circulating system, an oil circulating system and the like. Its theory of operation is motor direct drive compressor, make the bent axle produce rotary motion, it makes the piston produce reciprocating motion to drive the connecting rod, cause the cylinder volume to change, because the change of pressure in the cylinder, make air through air cleaner (silencer) entering cylinder through the admission valve, in the compression stroke, because the reduction of cylinder volume, compressed air passes through discharge valve's effect, through the blast pipe, the check valve gets into the gas holder, in the in-process of giving vent to anger, the air compressor machine combustion gas pushes away the check valve and gets into exhaust silencer, then get into the exhaust trunk line, in order to make exhaust air purer, often can be provided with the filter joint in the exhaust duct of air compressor machine.

Most on the existing market filter joint structure very simple, connecting inside and being provided with the filter core of filtering impurity, though can play filterable effect, nevertheless cause the jam of filter core very easily under long-time operational environment, when clearing up the renew cartridge, need to connect whole the pulling down, need a large amount of time, seriously influenced work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a filter joint convenient to maintain.

The purpose of the utility model can be realized by the following technical proposal: a filter joint comprises an air inlet pipe and an air outlet pipe which are coaxially arranged, and the upper end of the air inlet pipe and the lower end of the air outlet pipe are hermetically and fixedly connected; the filter element is arranged in the annular cavity, gas in the annular cavity flows into the gas outlet through the filter element, the side wall of the upper cavity is further provided with a radial through hole through which the filter element can extend out of the upper cavity, a cylinder body is detachably fixed in the radial through hole in a sealed mode, and the inner end of the cylinder body extends into the annular cavity and is fixedly connected with the filter element.

After the cylinder is disassembled, the filter element can extend out of the air inlet pipe along with the cylinder to be cleaned or replaced, so that the joint does not need to be integrally disassembled and assembled during actual operation, and the air inlet pipe has the advantage of convenience in maintenance.

In foretell filter joint, foretell filter core includes that the annular is sealed fills up and is cylindrical copper sintering filter core, and copper sintering filter core one end links firmly with the cylinder, and the annular is sealed to fill up and is in between copper sintering filter core other end and the venthole, and the annular is sealed to fill up and copper sintering filter core links firmly, and the both ends face that the annular is sealed fills up forms sealedly with copper sintering filter core and barrel outer wall contact respectively, and the venthole just sealed hole of annular. The gas filtered by the copper sintering filter element stably enters the air inlet hole by contacting the annular sealing gasket with the barrel, and the annular sealing gasket has good elastic deformation performance, so that the installation precision of the filter element can be reduced, the installation of the filter element is simpler, and the maintenance is further facilitated.

In the filter joint, the annular sealing gasket is fixedly connected with the copper sintered filter element in a bonding mode.

In foretell filter joint, the cylinder can dismantle through helicitic texture and intake pipe and link firmly, seted up the ring channel on the lateral wall of cylinder, be equipped with the sealing washer in the ring channel, and the lateral wall of sealing washer forms sealedly with the pore wall contact of radial through-hole to effectively improve the sealed effect that forms between cylinder and the intake pipe. Naturally, the cylinder also can form between joint mode and the intake pipe and can dismantle sealed linking firmly.

In foretell filter joint, the interior terminal surface of cylinder on seted up the jack that shape and size all match with copper sintering filter core, and copper sintering filter core one end is inserted in the jack through the tight fit mode to cylinder and filter core installation are convenient for.

In foretell filter joint, the outer end of cylinder stretches out the through-hole, and integrated into one piece has the lug on the outer end lateral wall of cylinder, and the lug can offset with the intake pipe lateral wall to the mounted position of restriction cylinder.

In the above-mentioned filter joint, the outer end face of the cylinder is provided with a polygonal hole, and the polygonal hole is matched with a tool so as to facilitate the cylinder to be screwed in or out.

In the filter joint, at least two air outlets are uniformly distributed along the circumferential direction of the cylinder, and the filter element, the cylinder and the through holes are same in number and are in one-to-one correspondence in position.

Compared with the prior art, this filtering joint has following advantage:

1. after the cylinder is disassembled, the filter element can extend out of the air inlet pipe along with the cylinder to be cleaned or replaced, so that the joint does not need to be integrally disassembled and assembled during actual operation, and the air inlet pipe has the advantage of convenience in maintenance.

2. The gas filtered by the copper sintering filter element stably enters the air inlet hole by contacting the annular sealing gasket with the barrel, and the annular sealing gasket has good elastic deformation performance, so that the installation precision of the filter element can be reduced, the installation of the filter element is simpler, and the maintenance is further facilitated.

Drawings

FIG. 1 is a schematic view of the structure of the filter joint.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

In the figure, 1, an air inlet pipe; 1a, a partition plate; 1a1, intake; 1b, a lower cavity; 1c, a cylinder body; 1c1, air outlet; 1d, a ring cavity; 2. an air outlet pipe; 3. a filter element; 3a, an annular sealing gasket; 3b, sintering the filter element by copper; 4. a cylinder; 4a, a bump; 4b, polygonal holes; 5. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the filter joint comprises an air inlet pipe 1 and an air outlet pipe 2 which are coaxially arranged, and the upper end of the air inlet pipe 1 is hermetically and fixedly connected with the lower end of the air outlet pipe 2. In this embodiment, the inlet pipe 1 and the outlet pipe 2 are screwed, and the joint of the inlet pipe 1 and the outlet pipe 2 is sealed by a raw adhesive tape.

Specifically, a partition plate 1a is integrally formed in the air inlet pipe 1, and the partition plate 1a partitions an inner cavity of the air inlet pipe 1 into an upper cavity and a lower cavity 1b which are axially distributed along the air inlet pipe 1. A cylinder body 1c is integrally formed on the top wall of the partition board 1a, and the cylinder body 1c and the air inlet pipe 1 are coaxially arranged. The top wall of the cylinder body 1c is closely contacted with the inner wall of the air outlet pipe 2 to form sealing, and the inner cavity of the cylinder body 1c is communicated with the air outlet pipe 2. An annular cavity 1d in a closed shape is formed among the outer wall of the cylinder body 1c, the inner wall of the air outlet pipe 2 and the inner wall of the air inlet pipe 1, the annular cavity 1d is communicated with the inner cavity of the cylinder body 1c through an air outlet hole 1c1 formed in the side wall of the cylinder body 1c, and the annular cavity 1d is communicated with the lower cavity 1b through an air inlet hole 1a1 formed in the partition plate 1 a. The air intake holes 1a1 are plural and are spaced apart from each other in the circumferential direction of the air intake pipe 1. The filter element 3 is arranged in the annular cavity 1d, and the gas in the annular cavity 1d flows into the gas outlet holes 1c1 after being filtered by the filter element 3. The lateral wall of the upper cavity is also provided with a radial through hole for the filter element 3 to extend out of the upper cavity, a cylinder 4 is detachably fixed in the radial through hole in a sealing manner, and the inner end of the cylinder 4 extends into the annular cavity 1d and is fixedly connected with the filter element 3. At this moment, lift off cylinder 4 after, filter core 3 can follow cylinder 4 and stretch out to intake pipe 1 outside together and wash or change, just need not whole dismouting when actual operation like this and connect, has the convenient advantage of maintenance.

In the present embodiment, as shown in fig. 1 and 2, the filter element 3 includes an annular seal gasket 3a and a copper sintered filter element 3b in a columnar shape. Wherein, copper sintering filter core 3b one end links firmly with cylinder 4, and annular sealing gasket 3a is located between copper sintering filter core 3b other end and venthole 1c 1. Annular sealing gasket 3a and copper sintering filter core 3b link firmly, and the both ends face of annular sealing gasket 3a contacts with copper sintering filter core 3b and barrel 1c outer wall respectively and forms sealedly, and venthole 1c1 just faces annular sealing gasket 3a hole. The contact of the annular sealing gasket 3a and the cylinder body 1c realizes that the gas filtered by the copper sintering filter element 3b stably enters the air inlet hole 1a1, and the annular sealing gasket 3a has good elastic deformation performance, so that the installation precision of the filter element 3 can be reduced, and the filter element 3 is simpler to install and further convenient to maintain.

In this embodiment, the annular seal 3a is fixedly connected with the copper sintered filter element 3b by means of bonding. The cylinder 4 can be dismantled with intake pipe 1 through helicitic texture and link firmly, has seted up the ring channel on the lateral wall of cylinder 4, is equipped with sealing washer 5 in the ring channel, and the lateral wall of sealing washer 5 forms sealedly with the pore wall contact of radial through-hole to effectively improve the sealed effect that forms between cylinder 4 and the intake pipe 1. Naturally, the cylinder 4 can also be connected with the air inlet pipe 1 in a detachable and sealed manner in a clamping manner. The inner end face of the column body 4 is provided with a jack, the shape and the size of the jack are matched with those of the copper sintering filter element 3b, and one end of the copper sintering filter element 3b is inserted into the jack in a tight fit mode, so that the column body 4 and the filter element are installed conveniently.

Further, the outer end of the cylinder 4 extends out of the through hole, a bump 4a is integrally formed on the outer end side wall of the cylinder 4, and the bump 4a can abut against the outer side wall of the air inlet pipe 1 to limit the installation position of the cylinder 4. The outer end face of the column body 4 is provided with a polygonal hole 4b, and the polygonal hole 4b is matched with a tool so as to facilitate the rotation of the column body 4 in or out.

In the actual product, the gas outlet 1c1 has two at least and along the circumference equipartition of barrel 1c, and filter core, cylinder 4 and through-hole three are the same and the position one-to-one.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A filter joint comprises an air inlet pipe (1) and an air outlet pipe (2) which are coaxially arranged, the upper end of the air inlet pipe (1) is fixedly connected with the lower end of the air outlet pipe (2) in a sealing way, and is characterized in that a partition plate (1a) is integrally formed in the air inlet pipe (1), the inner cavity of the air inlet pipe (1) is divided into an upper cavity and a lower cavity (1b) by the partition plate (1a), a barrel body (1c) is integrally formed on the top wall of the partition plate (1a), the barrel body (1c) and the air inlet pipe (1) are coaxially arranged, the top wall of the barrel body (1c) is tightly contacted with the inner wall of the air outlet pipe (2) to form a seal, the inner cavity of the barrel body (1c) is communicated with the air outlet pipe (2), a closed annular cavity (1d) is formed among the outer wall of the barrel body (1c), the inner wall of the air outlet pipe (2) and the inner wall of, the annular cavity (1d) is communicated with the lower cavity (1b) through an air inlet hole (1a1) arranged on the partition plate (1 a); be equipped with filter core (3) in annular chamber (1d), and the gas in annular chamber (1d) filters through filter core (3) and flows into venthole (1c1), the lateral wall of epicoele on still be equipped with and supply filter core (3) to stretch out the radial through-hole of epicoele, can dismantle sealed being fixed with cylinder (4) in the radial through-hole, cylinder (4) inner stretches into annular chamber (1d) and links firmly with filter core (3).

2. The filter joint according to claim 1, wherein the filter element (3) comprises an annular sealing gasket (3a) and a cylindrical copper sintered filter element (3b), one end of the copper sintered filter element (3b) is fixedly connected with the column body (4), the annular sealing gasket (3a) is positioned between the other end of the copper sintered filter element (3b) and the air outlet hole (1c1), the annular sealing gasket (3a) is fixedly connected with the copper sintered filter element (3b), two end faces of the annular sealing gasket (3a) are respectively contacted with the outer walls of the copper sintered filter element (3b) and the column body (1c) to form a seal, and the air outlet hole (1c1) is opposite to an inner hole of the annular sealing gasket (3 a).

3. The filter joint according to claim 2, characterized in that said annular gasket (3a) is fixed to the copper sintered filter element (3b) by means of gluing.

4. The filter joint according to claim 1, 2 or 3, wherein the cylinder (4) is detachably and fixedly connected with the air inlet pipe (1) through a thread structure, an annular groove is formed in the outer side wall of the cylinder (4), a sealing ring (5) is arranged in the annular groove, and the outer side wall of the sealing ring (5) is in contact with the wall of the radial through hole to form sealing.

5. The filter joint according to claim 4, wherein the inner end surface of the column (4) is provided with a jack matched with the copper sintered filter element (3b) in shape and size, and one end of the copper sintered filter element (3b) is inserted into the jack in a tight fit mode.

6. A filter joint according to claim 4, wherein the outer end of the column body (4) extends out of the through hole, and a projection (4a) is integrally formed on the side wall of the outer end of the column body (4), and the projection (4a) can abut against the outer side wall of the air inlet pipe (1).

7. A filter joint according to claim 4, wherein the outer end surface of the cylindrical body (4) is provided with a polygonal hole (4 b).

8. The filter joint according to claim 1, wherein the number of the air outlet holes (1c1) is at least two and is uniformly distributed along the circumference of the cylinder (1c), and the filter elements (3), the cylinders (4) and the through holes are the same in number and are in one-to-one correspondence in position.