Non-return oil pump

Abstract

The invention discloses a check oil pump, and belongs to the technical field of drilling pumps, the check oil pump comprises a fixing ring and a pump body, the pump body comprises an oil pump, a check valve and a control module, the oil pump is communicated with the check valve, the oil pump is electrically connected with the control module, and the circumferential inner wall of the fixing ring is rotatably connected with a plurality of uniformly distributed first connecting rods; one side of each first connecting rod is fixedly connected with an arc-shaped elastic plate, the other end of each arc-shaped elastic plate is fixedly connected with a second connecting rod, and one end of each second connecting rod is rotatably connected with the pump body. And the gap between the first connecting rod and the second connecting rod is reduced for avoiding, so that forced contact extrusion between the second connecting rod and the pump body is avoided, and the service life of the pump body is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling pumps, and in particular relates to a check oil pump. Background Art

[0002] The drilling rig is composed of multiple systems, among which the circulation system includes drilling pumps, ground manifolds, mud tanks, mud purification equipment, etc., which is responsible for carrying the rock cuttings broken by the drill bit at the bottom of the well to the ground.

[0003] After searching, a drilling pump for oil field drilling disclosed in the announcement number CN218598346U effectively reduces the deformation of the connecting rod, thereby avoiding bending of the connecting rod. However, since the length of the connecting rod is fixed, when the fixing ring moves downward, the drilling pump body does not move, and the connecting rod will squeeze the drilling pump body, causing damage to the drilling pump body, resulting in a short service life of the drilling pump. For this reason, we propose a check oil pump to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a check oil pump to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a check oil pump, comprising a fixing ring and a pump body, the pump body comprising an oil pump, a check valve, and a control module, the oil pump is communicated with the check valve, and the oil pump is electrically connected to the control module, a plurality of evenly distributed first connecting rods are rotatably connected to the circumferential inner wall of the fixing ring, an arc-shaped elastic plate is fixedly connected to one side of the first connecting rod, a second connecting rod is fixedly connected to the other end of the arc-shaped elastic plate, and one end of the plurality of second connecting rods is rotatably connected to the pump body, a plurality of the first connecting rods and a second connecting rod are both provided with a sliding groove on one side, a rubber block is slidably connected in the sliding groove, a sliding rod is slidably connected to one side of most of the first connecting rods, and two ends of the sliding rods respectively pass through the first connecting rod and the second connecting rod and are fixed to the rubber block, and a limiting mechanism for resisting the pump body is provided on the circumferential inner wall of the fixing ring.

[0006] Preferably, the limiting mechanism includes a plurality of fixing columns, all of which are welded to the circumferential inner wall of the fixing ring, a baffle is welded at one end of the plurality of fixing columns, and the baffle is in contact with the pump body, and a clamping mechanism for auxiliary fixing of the pump body is provided at the bottom of the baffle.

[0007] Preferably, the clamping mechanism includes a plurality of fixing rods, which are all welded to the bottom of the baffle, and a threaded hole penetrating the fixing rod is opened on one side of the plurality of fixing rods, and a fixing screw is threadedly connected to the threaded hole, and the fixing screw is in contact with the pump body.

[0008] Preferably, a spring is fixed to one end of each of the first connecting rods by a bolt, and the other end of the spring is fixed to the second connecting rod, and the spring is sleeved on the circumferential outer wall of the sliding rod.

[0009] Preferably, a plurality of heat dissipation holes penetrating the baffle are formed on the top of the baffle, and the plurality of heat dissipation holes are evenly distributed.

[0010] Preferably, the fixing column is made of rubber.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the downward movement of the fixing ring will drive the first connecting rod to move downward, thereby deforming the extrusion spring and the arc-shaped elastic plate, and the gap between the first connecting rod and the second connecting rod becomes smaller, thereby avoiding the forced contact and extrusion between the second connecting rod and the pump body, thereby improving the service life of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A perspective view of the present invention;

[0013] Figure 2 is an enlarged view of the first connecting rod of the present invention;

[0014] Figure 3 It is an enlarged view of the fixing ring of the present invention.

[0015] In the figure: 1. fixing ring; 2. pump body; 3. first connecting rod; 4. arc elastic plate; 5. rubber block; 6. slide groove; 7. slide rod; 8. spring; 9. second connecting rod; 10. fixing column; 11. baffle; 12. fixing rod; 13. fixing screw; 14. heat dissipation hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 3The present invention provides a check oil pump, comprising a fixing ring 1 and a pump body 2, wherein the pump body 2 comprises an oil pump, a check valve, and a control module, wherein the oil pump is communicated with the check valve, and the oil pump is electrically connected to the control module, and the control module controls the opening and closing of the oil pump, wherein the inner wall of the circumference of the fixing ring 1 is rotatably connected with a plurality of evenly distributed first connecting rods 3, one side of the first connecting rod 3 is fixedly connected with an arc-shaped elastic plate 4, the other end of the arc-shaped elastic plate 4 is fixedly connected with a second connecting rod 9, and one end of the plurality of second connecting rods 9 is rotatably connected with the pump body 2, a plurality of first connecting rods 3 and one side of the second connecting rod 9 are provided with a slide groove 6, a rubber block 5 is slidably connected in the slide groove 6, and one side of most of the first connecting rods 3 slides A sliding rod 7 is connected, and both ends of the sliding rod 7 pass through the first connecting rod 3 and the second connecting rod 9 respectively and are fixed to the rubber block 5. The circumferential inner wall of the fixing ring 1 is provided with a limiting mechanism for resisting the pump body 2. One end of each of the multiple first connecting rods 3 is fixed with a spring 8 by a bolt, and the other end of the spring 8 is fixed to the second connecting rod 9, and the spring 8 is sleeved on the circumferential outer wall of the sliding rod 7. The downward movement of the fixing ring 1 will drive the first connecting rod 3 to move downward, thereby squeezing the spring 8 and the arc-shaped elastic plate 4 to deform, and the gap between the first connecting rod 3 and the second connecting rod 9 becomes smaller, and avoidance is performed, thereby avoiding forced contact and extrusion between the second connecting rod 9 and the pump body 2, thereby improving the service life of the pump body 2.

[0018] Among them, the limiting mechanism includes a plurality of fixed columns 10, and the plurality of fixed columns 10 are welded to the circumferential inner wall of the fixing ring 1. The material of the fixed columns 10 is rubber. A baffle 11 is welded at one end of the plurality of fixed columns 10, and the baffle 11 is in contact with the pump body 2. A clamping mechanism for auxiliary fixation of the pump body 2 is provided at the bottom of the baffle 11. The baffle 11 presses against the pump body 2 to auxiliary fix the pump body 2, so that the pump body 2 is not easy to shake during operation, thereby improving the fixing effect of the pump body 2.

[0019] Among them, the clamping mechanism includes a plurality of fixing rods 12, and the plurality of fixing rods 12 are welded to the bottom of the baffle 11. A threaded hole penetrating the fixing rod 12 is opened on one side of the plurality of fixing rods 12. A fixing screw 13 is threadedly connected in the threaded hole, and the fixing screw 13 is in contact with the pump body 2. The fixing screw 13 is rotated to make the fixing screw 13 contact with the pump body 2, so as to clamp and fix the pump body 2, thereby further improving the fixing effect of the pump body 2.

[0020] Among them, a plurality of heat dissipation holes 14 penetrating the baffle 11 are opened on the top of the baffle 11, and the plurality of heat dissipation holes 14 are evenly distributed. The heat dissipation holes 14 dissipate heat for the pump body 2 to prevent the pump body 2 from overheating after long-term operation, thereby further extending the service life of the pump body 2.

[0021] The working principle and use process of the present invention are as follows: the fixing ring 1 moves downward, which will drive the first connecting rod 3 to move downward, thereby deforming the extrusion spring 8 and the arc-shaped elastic plate 4, and the gap between the first connecting rod 3 and the second connecting rod 9 becomes smaller, thereby avoiding the position, thereby avoiding forced contact and extrusion between the second connecting rod 9 and the pump body 2. At the same time, the baffle 11 abuts against the pump body 2 to assist in fixing the pump body 2, so that the pump body 2 is not prone to shaking during operation. Then, the fixing screw 13 is rotated to make the fixing screw 13 contact with the pump body 2, and the pump body 2 is clamped and fixed, thereby increasing the service life of the pump body 2.

[0022] The electronic components and modules used in the invention can be parts commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A non-return oil pump, comprising a fixing ring (1) and a pump body (2), characterized in that: The pump body (2) comprises an oil pump, a check valve and a control module. The oil pump is connected to the check valve and is electrically connected to the control module. A plurality of evenly distributed first connecting rods (3) are rotatably connected to the circumferential inner wall of the fixing ring (1). An arc-shaped elastic plate (4) is fixedly connected to one side of the first connecting rod (3). The other end of the arc-shaped elastic plate (4) is fixedly connected to a second connecting rod (9). One end of the plurality of second connecting rods (9) is rotatably connected to the pump body (2). A sliding groove (6) is provided on one side of the plurality of first connecting rods (3) and the second connecting rod (9). A rubber block (5) is slidably connected in the sliding groove (6). A sliding rod (7) is slidably connected to one side of most of the first connecting rods (3). Two ends of the sliding rod (7) pass through the first connecting rod (3) and the second connecting rod (9) respectively and are fixed to the rubber block (5). A limiting mechanism for resisting the pump body (2) is provided on the circumferential inner wall of the fixing ring (1).

2. The check oil pump according to claim 1, characterized in that: The limiting mechanism comprises a plurality of fixing columns (10), each of which is fixedly connected to the circumferential inner wall of the fixing ring (1), a baffle (11) being fixedly connected to one end of the fixing columns (10), and the baffle (11) being in contact with the pump body (2), and a clamping mechanism for auxiliary fixing of the pump body (2) is provided at the bottom of the baffle (11).

3. The check oil pump according to claim 2, characterized in that: The clamping mechanism comprises a plurality of fixing rods (12), each of the fixing rods (12) being fixedly connected to the bottom of the baffle (11), each of the fixing rods (12) having a threaded hole penetrating the fixing rod (12) formed on one side thereof, a fixing screw (13) being threadedly connected in the threaded hole, and the fixing screw (13) being in contact with the pump body (2).

4. The check oil pump according to claim 1, characterized in that: One end of each of the first connecting rods (3) is fixedly connected to a spring (8), and the other end of the spring (8) is fixed to a second connecting rod (9), and the spring (8) is sleeved on the circumferential outer wall of the sliding rod (7).

5. The check oil pump according to claim 2, characterized in that: A plurality of heat dissipation holes (14) penetrating the baffle plate (11) are provided on the top of the baffle plate (11), and the plurality of heat dissipation holes (14) are evenly distributed.

6. The check oil pump according to claim 2, characterized in that: The material of the fixing column (10) is rubber.

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