Double-deck filtration oil pumping rifle structure
Technical Field
The utility model relates to an oil pumping tool, in particular to a double-layer filtering oil pumping gun structure.
Background
The oil extraction gun is a relatively common pumping tool and has a hand-operated and electric structure, but the traditional product is rarely provided with a filter screen or is only provided with a simple single-layer filter screen. If directly withdrawn from the oil drum, there may be little contamination and impurities, but it is easy for the reverse pumping to carry the impurities in. In any event, it is necessary to provide a simple and efficient filter structure.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a double-layer filtering oil extraction gun structure.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a double-deck filtration sucker gun structure, includes continuous rifle head and movable stock, the rifle head is equipped with communicating disk seat in connection movable stock department, be equipped with the last interface of taking the end cap on the disk seat, supply the lower interface of oil and connect the side interface of rifle head, still be equipped with T shape main transition net and supply the cavity of T shape main transition net installation in the disk seat, T shape main transition net is the basket form structure of back-off shape, T shape main transition net top has the fixed plane of supporting the end cap of interface department, T shape main transition net has the filter cambered surface in the side.
The T-shaped main transition web has a convex edge at the bottom outer edge.
The convex edge is abutted with the cavity wall of the cavity.
The gun head is provided with a front filter screen at the muzzle and a one-way valve group positioned at the inner side of the front filter screen.
The one-way valve group at least comprises a mounting sleeve and steel balls, a through hole is formed in the mounting sleeve, the through hole is provided with a front sealing section for sealing the steel balls and a backflow preventing check section, the diameter of the steel balls is smaller than that of the check section, and the diameter of the steel balls is larger than that of the front sealing section.
The cross section of the T-shaped main transition net in the radial direction is trapezoid, and the width of the T-shaped main transition net in the cross section is gradually increased from top to bottom.
The utility model has the beneficial effects that: the double-layer filtering oil pumping gun structure provided by the utility model adopts a double-filtering structure, wherein a T-shaped filter screen is mainly utilized for efficient and reliable filtering, and the double-layer filtering oil pumping gun structure is convenient to operate and long in service life, and meets the use requirements of users.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a valve seat structure according to the present utility model;
Fig. 3 is a schematic view of a gun head partially enlarged structure according to the present utility model.
Detailed Description
As shown in fig. 1-3, a double-layer filtering oil pumping gun structure comprises a gun head 1 and a movable gun handle 2 which are connected, wherein the connection of the gun head 1 and the movable gun handle 2 is a mature technical means, and the operation and the triggering are performed in a hinged manner, and particularly, excessive description and limitation are not needed. The gun head 1 is provided with a valve seat 3 which is communicated with the movable gun handle 2, and the valve seat 3 is provided with an upper interface 5 with a plug 4, a lower interface 6 for supplying oil and an side interface 7 for connecting the gun head 1. In the application, a connecting column is arranged at one end of the valve seat 3 opposite to the side interface 7, and a ring groove and a fastener are arranged on the connecting column and are in inserted fit with the movable gun handle. This is only one example and is not intended to be limiting. The side ports 7 are connected with the gun head 1, the concrete connection mode can be screw connection or other connection modes, and the lower ports 6 can be connected with oil pipes in the same way.
Still be equipped with T shape main transition net 8 in the disk seat 3 and supply the cavity of T shape main transition net 8 installation, T shape main transition net 8 is the basket form structure of back-off shape, T shape main transition net 8 top has the fixed plane 9 that supports the end cap 4 of interface 5 department, T shape main transition net 8 has filtering cambered surface 10 in the side. The T-shaped main transition net 8 is the main filtering structure, which filters through the mesh, and maintains the stability in use by utilizing the structural characteristics. It should be noted that, due to the basket-like structure, the oil enters the valve seat 3, surrounds the T-shaped main transition net 8, and then relatively slowly permeates into the inner side of the T-shaped main transition net 8.
The cross section of the T-shaped main transition net 8 in the radial direction is trapezoid, the width of the T-shaped main transition net 8 in the cross section is gradually increased from top to bottom, and the convex edge 11 is abutted against the cavity wall of the cavity. The limiting shape enables the stress to be concentrated at the lower part, so that the unit flow of the section is indirectly increased, and the filtering efficiency is improved. The T-shaped main transition net 8 is provided with a convex edge 11 at the outer edge of the bottom, and forms a triangular positioning supporting function by matching with the fixing plane 9.
The gun head 1 is provided with a front filter screen 12 at the muzzle and a one-way valve group positioned on the inner side of the front filter screen 12. The one-way valve group at least comprises a mounting sleeve 13 and steel balls 14, a through hole is formed in the mounting sleeve 13, the through hole is provided with a front sealing section for sealing the steel balls 14 and a backflow preventing check section, the diameter of the steel balls 14 is smaller than that of the check section, and the diameter of the steel balls 14 is larger than that of the front sealing section. The front sealing section is blocked by the steel balls 14 to keep unidirectional sealing, and the steel balls 14 are flushed away during normal oil pumping. Two one-way valve sets are provided for improving the sealing and non-return effects, and the steel balls 14 can be limited by using different mounting sleeves 13 or by nesting in the gun head 1, so that the two one-way valve sets are not limited in any way, and only the embodiment is described herein.
In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, while the basic principles, main features, and advantages of the present utility model are shown and described above, and it should be understood by those skilled in the art.