阅读说明：本技术 一种防反液井下过流泄流装置 (A kind of counnter attack liquid underground overcurrent discharge device ) 是由 刘长志 王海滔 刘铁 刘洋 王威 肖彦英 康健 向蓉 于 2019-10-15 设计创作，主要内容包括：本发明提供了一种防反液井下过流泄流装置,包括缸体、上接头及下接头,所述上接头连接固定在缸体的一端,所述上接头的内部设有引导头且引导头靠近缸体的端部固定套接有支撑杆,所述上接头靠近缸体的端部固定连接有爪簧且爪簧内放置有钢球且钢球与支撑杆远离引导头的一端抵触设置,所述爪簧与支撑杆之间设有剪切件,所述下接头的外侧螺纹连接有密封体且密封体固定连接在缸体远离上接头的一端,所述密封体内设有球座且球座远离钢球一端固定安装有可溶球,所述缸体的侧面上设有撞击钉伸入缸体内部。本发明提供的一种防反液井下过流泄流装置,三种功能结合,操作简单,使用成本低。(The present invention provides a kind of counnter attack liquid underground overcurrent discharge devices, including cylinder body, top connection and lower contact, the top connection is fastened on one end of cylinder body, the inside of the top connection is equipped with seeker and seeker is connected to support rod close to the end fixing sleeve of cylinder body, the top connection is fixedly connected with close to the end of cylinder body is placed with steel ball in pawl spring and pawl spring and one end conflict setting of steel ball and support rod far from seeker, cutting member is equipped between the pawl spring and support rod, the outside screw of the lower contact is connected with seal and seal is fixedly connected on the one end of cylinder body far from top connection, it is equipped with ball seat in the seal and ball seat is fixedly installed with solvable ball far from steel ball one end, the side of the cylinder body, which is equipped with to hit to follow closely, protrudes into cylinder interior.A kind of counnter attack liquid underground provided by the invention overcurrent discharge device, three kinds of functions combine, and easy to operate, use cost is low.)

1. a kind of counnter attack liquid underground overcurrent discharge device, including cylinder body (5), top connection (1) and lower contact (13), feature exists In the top connection (1) is fastened on one end of cylinder body (5), and the inside of the top connection (1) is equipped with seeker (2) and draws End fixing sleeve of the top guide (2) close to cylinder body (5) is connected to support rod (3), and the top connection (1) is solid close to the end of cylinder body (5) Surely be connected be placed with steel ball (9) in pawl spring (8) and pawl spring (8) and steel ball (9) and support rod (3) far from seeker (2) one End contradicts setting, is equipped with cutting member (6) between the pawl spring (8) and support rod (3), and the outside screw of the lower contact (13) connects It is connected to seal (11) and seal (11) is fixedly connected on the one end of cylinder body (5) far from top connection (1), the seal (11) Interior ball seat (10) and the ball seat (10) of being equipped with is fixedly installed with solvable ball (12) far from steel ball (9) one end, the side of the cylinder body (5) It is equipped with shock nail (4) and protrudes into cylinder body (5) inside.

2. a kind of counnter attack liquid underground according to claim 1 overcurrent discharge device, it is characterised in that: the top connection (1) Lateral surface be equipped be equipped with screw thread.

3. a kind of counnter attack liquid underground according to claim 1 overcurrent discharge device, it is characterised in that: the solvable ball (12) Material be that polylactic acid, starch plastic or light dissolve plastics.

4. a kind of counnter attack liquid underground according to claim 1 overcurrent discharge device, it is characterised in that: the cylinder body (5) with Band has the gap between seeker (2).

5. a kind of counnter attack liquid underground according to claim 1 overcurrent discharge device, it is characterised in that: the cutting member (6) Material be aluminium or copper.

Technical field

The present invention relates to oil production equipment fields, in particular to a kind of counnter attack liquid underground overcurrent discharge device.

Background technique

The task of petroleum production engineering is so that oil, gas Channel Group is entered well by a series of project slash that may act on oil reservoir, Well is expeditiously given rise to ground and is separated and measured；Its target is cost-effectively to improve oil well and oil recovering Rate.Overcurrent drainage device is one smaller component of oil production equipment and important component, but present mistake flows Oily device has a single function, disadvantage troublesome in poeration there is structure is complicated.

Summary of the invention

For above-mentioned deficiency in the prior art, the present invention provides a kind of counnter attack liquid underground overcurrent discharge device, knots Structure is compact, easy to operate, vdiverse in function, facilitates popularization.

In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows:

A kind of counnter attack liquid underground overcurrent discharge device, including cylinder body, top connection and lower contact, the top connection are connected and fixed In one end of cylinder body, the inside of the top connection is equipped with seeker and seeker is connected to support close to the end fixing sleeve of cylinder body Bar, the top connection is fixedly connected in pawl spring and pawl spring close to the end of cylinder body is placed with steel ball and steel ball and support rod are separate One end of seeker contradicts setting, and cutting member is equipped between the pawl spring and support rod, and the outside screw of the lower contact connects There is seal and seal is fixedly connected on the one end of cylinder body far from top connection, is equipped with ball seat in the seal and ball seat is separate Steel ball one end is fixedly installed with solvable ball, and the side of the cylinder body, which is equipped with to hit to follow closely, protrudes into cylinder interior.

As an improvement, the lateral surface of the top connection is equipped with screw thread.

As an improvement, the material of the solvable ball is that polylactic acid, starch plastic or light dissolve plastics.

As an improvement, band has the gap between the cylinder body and seeker.

As an improvement, the material of the cutting member is aluminium or copper.

The invention has the benefit that

The configuration of the present invention is simple can prevent from being sprayed at lower contact when the present apparatus is installed by the way that solvable ball is arranged Oil, has the function of blowout prevention, and the steel ball of setting will squeeze target seeker and support rod by oil liquid in overcurrent, cutting member is caused to be cut It is short, so that steel ball drops into ball seat to have the function that anti-overflow, shock nail are able to use tool and sever so as to let out Oil, three kinds of functions combine, and easy to operate, use cost is low.

Detailed description of the invention

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

The appended drawing reference table of comparisons:

1, top connection；2, target seeker；3, support rod；4, nail is hit；5, cylinder body；6, cutting member；7, connecting tube；8, pawl spring； 9, steel ball；10, ball seat；11, seal；12, solvable ball；13, lower contact.

Specific embodiment

Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.Wherein identical components are with identical Appended drawing reference indicates.

It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to Direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.

In order that the present invention can be more clearly and readily understood, following will be combined with the drawings in the embodiments of the present invention, Technical scheme in the embodiment of the invention is clearly and completely described.

As shown in Figure 1, a kind of counnter attack liquid underground overcurrent discharge device, including cylinder body 5, top connection 1 and lower contact 13, it is described Top connection 1 is fastened on one end of cylinder body 5, and the inside of the top connection 1 is equipped with seeker 2 and seeker 2 close to cylinder body 5 End fixing sleeve is connected to support rod 3, and the top connection 1 is fixedly connected in pawl spring 8 and pawl spring 8 close to the end of cylinder body 5 and places There is steel ball 9 and steel ball 9 and support rod 3 contradict far from one end of seeker 2 and be arranged, is equipped with and cuts between the pawl spring 8 and support rod 3 Cut piece 6, the outside screw of the lower contact 13 is connected with seal 11 and seal 11 is fixedly connected on cylinder body 5 far from top connection 1 one end is equipped with ball seat 10 in the seal 11 and ball seat 10 is fixedly installed with solvable ball 12 far from 9 one end of steel ball, described The side of cylinder body 5 is equipped with shock nail 4 and protrudes into inside cylinder body 5.

The lateral surface of the top connection 1 is equipped with screw thread.

The material of the solvable ball 12 is that polylactic acid, starch plastic or light dissolve plastics.

Band has the gap between the cylinder body 5 and seeker 2.

The material of the cutting member 6 is aluminium or copper.

In the device use process, the lower contact of the present apparatus 13 is connected on oil pipe first, the plug cock of pump is backed out, it will be upper After the connection of connector 1 is upper, solvable ball 12 during installation, can block oil pipe blowout, and after installing device, solvable ball 12 is in oil liquid Middle dissolution conducting, top connection 1 will be connected liquid to lower contact 13, target seeker 2 and support rod 3 will be pressed to lead when oil liquid blocks 9 downlink of steel ball is caused, cutting member 6 is cut, and steel ball 9 is fallen into, on ball seat 10, and steel ball 9, ball seat 10, seal 11 will form list To sealing structure, device replaces the standing valve effect of pump at this time, when needing draining, using Ou Nuo just hit nail 4 to Fracture carries out draining.

The above description is only a preferred embodiment of the patent of the present invention, is not intended to limit the invention patent, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the invention patent within the spirit and principle of patent of invention Protection scope within.