CN217340296U

CN217340296U - Drawer type oil drainage bolt

Info

Publication number: CN217340296U
Application number: CN202221312706.8U
Authority: CN
Inventors: 梁小恩; 陈洪青
Original assignee: China Fst Co ltd
Current assignee: China Fst Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-02
Anticipated expiration: 2032-05-26

Abstract

The utility model belongs to the technical field of the crankcase accessory, a drawer type oil drain bolt is related to, including detachable spiro union in the oil drain bolt on the crankcase case lid, be provided with axial bolt through-hole on the oil drain bolt, sealed end cap is installed to detachable in the bolt through-hole, sealed end cap be made by flexible material and with bolt through-hole interference fit, the rear end of sealed end cap is connected with the filter screen that extends into crankcase inner chamber, filter screen upper end opening is drawer form, the filter screen can be followed and sealed end cap is pulled out in by the bolt through-hole, the bottom of filter screen is provided with the magnet steel. The utility model provides a drawer type oil drain bolt has simple structure, and the filter effect is good, the advantage of the clearance of being convenient for.

Description

Drawer type oil drain bolt

Technical Field

The utility model belongs to the technical field of the crankcase accessory, a drawer type oil drain bolt is related to.

Background

At present, precision machining puts higher requirements on the cleanliness of a crankshaft pump crankcase, the industry standard is specified in detail, and the cleanliness of 4.8 in JBT9802 is specified: the pump is operated for 30 minutes under the rated working condition, the content of the foreign matters in the crankcase of the pump is not more than 65mg, and the foreign matters are filtered by a 200-mesh filter screen under the specified test condition.

Patent CN199920007301.7 provides a magnetic filtration circulator for lubricating oil, which has a filtration effect and can significantly improve the service life of the device. It is composed of a magnetic filter box and a micro pump. The magnetic filter box is composed of a shell, a plurality of groups of adsorption plates arranged in parallel in rows and columns inside the shell and a filter screen. The filter box is provided with an oil inlet and an oil outlet, a micro pump driven by a motor is arranged at the oil outlet, the adsorption plates are fixed on an iron plate or a plastic plate at intervals by a plurality of blocky magnets in regular arrangement, and spaces are reserved among the adsorption plates and among the magnets. The magnetic filter screen is positioned on the oil outlet side, and the oil filtered by the adsorption plate is filtered again. The characteristics are the same as the structure of the water filter, namely, the oil is pumped by an oil pump, and a magnetic filter is arranged at an oil pumping port; but because of the external electric lubricating oil pump and the filter, the pump is not suitable for the small-volume pump occasions such as the agricultural plunger pump.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a drawer type oil drain bolt, have simple structure, the filter effect is good, the advantage of the clearance of being convenient for.

In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a drawer type oil drain bolt, includes detachable spiro union in the oil drain bolt on the crankcase case lid, be provided with axial bolt through-hole on the oil drain bolt, detachable installs sealed end cap in the bolt through-hole, sealed end cap is made by flexible material and with bolt through-hole interference fit, the rear end of sealed end cap is connected with the filter screen that extends into the crankcase inner chamber, filter screen upper end opening is drawer form, the filter screen can be along with sealed end cap and pull out in by the bolt through-hole, the bottom of filter screen is provided with the magnet steel.

In the drawer-type oil drain bolt, the material of the sealing plug is preferably corrosion-resistant plastic or rubber.

In the drawer-type oil drain bolt, the sealing plug is connected with the filter screen through the rigid connecting piece, one end of the rigid connecting piece is embedded in the sealing plug, and the other end of the rigid connecting piece is fixedly connected with the filter screen. The rigid connecting piece is preferably a metal piece, and the rigid connecting piece can be integrally formed with the sealing plug during injection molding.

In the drawer-type oil drain bolt, the sealing plug comprises a handle part and a connecting part, the radial size of the handle part is larger than that of the connecting part, the handle part is located on the outer side of the oil drain bolt, and the connecting part is in interference fit with the bolt through hole.

In the drawer-type oil drain bolt, a sealing gasket is arranged between the handle part and the oil drain bolt, and sealing end faces of the sealing gasket are respectively connected with the inner side face of the handle part and the outer side face of the oil drain bolt in a sealing manner. The sealing gasket is made of materials commonly used in the field, such as tetrafluoroethylene gasket.

In the drawer-type oil drain bolt, an annular groove for accommodating a sealing gasket is formed in the outer end face of the oil drain bolt, and the sealing gasket is sleeved on the connecting portion.

In the drawer type oil drain bolt, the outer side of the filter screen is provided with the magnetic shielding layer for shielding the magnetic field of the magnetic steel, and the magnetic shielding layer prevents the magnetic steel from generating magnetization influence on the crankshaft.

In the drawer-type oil drain bolt, the size of the filter screen is 100-200 meshes, preferably 100 meshes, 150 meshes or 200 meshes.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses integrated filtering capability on the oil drain bolt, through the filter screen of unique structure, can filter impurity and piece in the lubricating oil, adsorb iron fillings to reach the effect of clearance lubricating oil, maintain the cleanliness of crankcase. Meanwhile, on the premise of not screwing out the oil drainage bolt, the filter screen can be taken out for cleaning through drawing out the sealing plug which can be detachably connected, and the oil drainage bolt is very convenient. The utility model provides a crankcase of any model can the adaptation to the accessory, easily popularizes and applies, prolongs plunger piston pump life-span, reduces the scuffing of the jar of drawing of bent axle connecting rod/the risk of napping.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

reference numerals: 1. a crankcase cover; 2. an oil drain bolt; 3. sealing the plug; 3a, a handle part; 3b, a connecting part; 4. a filter screen; 5. a rigid connection; 6. a gasket seal.

Detailed Description

The invention will be further described in the following with specific embodiments in conjunction with the drawings, see fig. 1:

the utility model provides a drawer type oil drain bolt 2, includes detachable spiro union oil drain bolt 2 on crankcase case lid 1, be provided with the axial bolt through-hole on the oil drain bolt 2, detachable installs sealed end cap 3 in the bolt through-hole, sealed end cap 3 make by flexible material and with bolt through-hole interference fit, the rear end of sealed end cap 3 is connected with the filter screen 4 that extends into the crankcase inner chamber, filter screen 4 upper end opening is drawer form, filter screen 4 can be along with sealed end cap 3 pull out in by the bolt through-hole, the bottom of filter screen 4 is provided with the magnet steel.

During operation, crankshaft rotation drives the lubricating oil and flows, and partly lubricating oil flows once more after debris and piece are held back to filter screen 4 through filter screen 4 in getting into filter screen 4 by the opening part of filter screen 4, the lubricating oil that flows into filter screen 4, and simultaneously, the iron fillings that the part wearing and tearing in the crankcase got off can be adsorbed by the magnet steel, increase the filter effect. When the filter screen 4 needs to be cleaned, the sealing plug 3 is pulled out with force, and the filter screen 4 is moved out, so that the filter screen 4 can be cleaned.

The material of the sealing plug 3 is preferably corrosion-resistant plastic or rubber, and the sealing plug is in interference fit with the bolt through hole in a mode of deformation of the plastic or rubber.

The sealing plug 3 is connected with the filter screen 4 through the rigid connecting piece 5, one end of the rigid connecting piece 5 is embedded in the sealing plug 3, and the other end of the rigid connecting piece is fixedly connected with the filter screen 4. The rigid connecting element 5 is preferably a metal element, and the rigid connecting element 5 can be integrally formed with the sealing plug 3 during injection molding. The rigid connecting piece 5 connects the filter screen 4 to the sealing plug 3 stably, so that the stability in working can be improved, and the filter screen 4 can be moved out simultaneously when the sealing plug 3 is pulled out.

Above-mentioned sealed end cap 3 includes handle portion 3a and connecting portion 3b, the radial dimension of handle portion 3a is greater than the radial dimension of connecting portion 3b, handle portion 3a is located the 2 outsides of oil drain bolt, connecting portion 3b and bolt through hole interference fit, handle portion 3a can be more convenient pull out sealed end cap 3, do not influence sealed end cap 3 and bolt through hole's interference fit simultaneously.

In order to enhance the sealing performance, a sealing gasket 6 is arranged between the handle part 3a and the oil drain bolt 2, and the sealing end surfaces of the sealing gasket 6 are respectively connected with the inner side surface of the handle part 3a and the outer side surface of the oil drain bolt 2 in a sealing mode. The sealing gasket 6 is made of a material commonly used in the art, such as a tetrafluoroethylene gasket.

Further, in order to ensure that the sealing gasket 6 is more reliably mounted and works, the outer end surface of the oil drain bolt 2 is provided with an annular groove for accommodating the sealing gasket 6, and the sealing gasket 6 is sleeved on the connecting part 3 b.

The outer side of the filter screen 4 is provided with a magnetic shielding layer for shielding the magnetic field of the magnetic steel, and the magnetic shielding layer prevents the magnetic steel from generating magnetization influence on the crankshaft.

The filter screen 4 is 100-200 mesh, preferably 100 mesh, 150 mesh or 200 mesh.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a drawer type oil drain bolt, includes detachable spiro union oil drain bolt (2) on crankcase case lid (1), its characterized in that, be provided with axial bolt through-hole on oil drain bolt (2), sealed end cap (3) are installed to detachable in the bolt through-hole, sealed end cap (3) make by flexible material and with bolt through-hole interference fit, the rear end of sealed end cap (3) is connected with filter screen (4) that extend into the crankcase inner chamber, filter screen (4) upper end opening is drawer form, filter screen (4) can be followed sealed end cap (3) and pulled out in the bolt through-hole, the bottom of filter screen (4) is provided with the magnet steel.

2. The drawer-type oil drain bolt as recited in claim 1, wherein the sealing plug (3) is connected with the filter screen (4) through a rigid connecting member (5), one end of the rigid connecting member (5) is embedded in the sealing plug (3), and the other end is fixedly connected with the filter screen (4).

3. A drawer-type oil drain bolt according to claim 1, characterized in that the sealing plug (3) comprises a handle portion (3a) and a connecting portion (3b), the handle portion (3a) having a radial dimension larger than the radial dimension of the connecting portion (3b), the handle portion (3a) being located outside the oil drain bolt (2), the connecting portion (3b) being in interference fit with the bolt through hole.

4. A drawer-type oil drain bolt according to claim 3, characterized in that a sealing gasket (6) is arranged between the handle portion (3a) and the oil drain bolt (2), and the sealing end surfaces of the sealing gasket (6) are respectively connected with the inner side surface of the handle portion (3a) and the outer side surface of the oil drain bolt (2) in a sealing manner.

5. A drawer drain bolt according to claim 4, characterized in that the outer end surface of the drain bolt (2) is provided with an annular groove for receiving a sealing gasket (6), the sealing gasket (6) being fitted over the connecting portion (3 b).

6. The drawer-type oil drain bolt according to claim 1, characterized in that the outside of the filter screen (4) is provided with a magnetic shielding layer for shielding the magnetic field of the magnetic steel.

7. The drawer-type oil drain bolt as claimed in claim 1, wherein the size of the filter screen (4) is 100-200 mesh.