Oil well pump accessory sealing performance detection device

Abstract

The utility model relates to the technical field of oil well pump fitting sealing performance detection, and discloses an oil well pump fitting sealing performance detection device, which comprises a water tank filled with a water body, a detection device is arranged on the water tank, and the detection device comprises a mounting part. According to the oil well pump accessory sealing performance detection device, through arrangement of a pressing plate, a screw rod, a sliding rod, an L-shaped support, an air box, a mounting frame, an air inlet pipe, an air outlet pipe, an elastic pad and a baffle plate, the elastic pad is used for clamping a valve seat, the screw rod is rotated, a valve ball extrudes the valve seat rightwards, positioning of the valve ball and the valve seat is completed, the valve ball and the valve seat are sunk into the water surface, and high-pressure gas is introduced through the air inlet pipe; when bubbles are observed to be generated between the valve ball and the valve seat, the sealing performance between the valve ball and the valve seat can be judged, and the air leakage position can be displayed more visually; by arranging the gear, the motor and the gear ring, the motor is started to drive the air box, the valve seat and the valve ball to rotate, and the valve seat and the valve ball are controlled to move up and down conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil well pump accessory leakproofness detection technical field, concretely is a kind of oil well pump accessory leakproofness detection device. BACKGROUND

[0002] Before oil well pump accessory product leaves factory, valve ball and valve seat contact surface need to be tested.

[0003] Chinese patent discloses a kind of oil well pump accessory leakproofness detection device, and the announcement number is CN221811656U, including suction mechanism and cylinder, the suction mechanism includes vacuum pump, the socket that is communicated with vacuum pump and the vacuum pressure gauge that is communicated with socket, the socket is communicated with cylinder, the cylinder top is provided with sealing ring, the top of the cylinder is provided with air hole, the bottom of the sealing ring is provided with through-hole communicated with air hole, the utility model, by sealing ring is wrapped in valve seat outer wall (prevent valve seat and sealing ring between air leakage), valve ball is placed on valve seat again, after detection is completed, the valve of air inlet pipe is opened to release pressure, valve seat and valve ball are taken down, cylinder is pumped by vacuum pump, according to vacuum pressure gauge observation pumping degree, after reaching experimental detection pressure, vacuum pump is closed, the leakproofness between valve ball and valve seat is detected, test is simple, convenient to operate, low in cost, test effect is sensitive, accurate, and practicality is strong.

[0004] But still include following shortcoming: device is pumped by the change of vacuum pressure gauge value, judge whether valve ball and valve seat leak, but the leakproofness of vacuum pump itself and the leakproofness between connecting pipe are difficult to guarantee, it is not convenient to directly show whether valve ball and valve seat leak.For this, we propose a kind of oil well pump accessory leakproofness detection device to solve this problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of oil well pump accessory leakproofness detection device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of oil well pump accessory leakproofness detection device, including the water tank with water body, the water tank is provided with detection device, and the detection device includes installation part;

[0007] The installation part includes air tank, the outer surface of the air tank is rotatably provided with mounting bracket by first bearing, and the left end surface of the air tank is fixedly connected with gas outlet pipe;

[0008] The gas outlet pipe is provided with sealing part inside;

[0009] The sealing part includes sealing plate, and the left end surface of the sealing plate is fixedly connected with connecting rod.

[0010] Further improvement lies in that the mounting part further comprises a pressing plate, a screw rod, a sliding rod, an L-shaped support, a gear, a motor, a gear ring, an air inlet pipe, an elastic pad and a baffle, a groove is arranged on the inner wall of the air outlet pipe, the outer surface of the elastic pad extends into the groove and is fixedly connected with the inner wall of the air outlet pipe, and the outer surface of the baffle is fixedly connected with the inner wall of the air outlet pipe, so that the right end of the valve seat is clamped into the air outlet pipe, and the valve seat is positioned.

[0011] Further improvement lies in that the right end surface of the L-shaped support is fixedly connected with the left end surface of the air tank, the right end surface of the screw rod is rotatably connected with the left end surface of the pressing plate through a bearing seat, the left end surface of the pressing plate is fixedly connected with the right end surface of the sliding rod, and the outer surface of the screw rod is screwed through the inner wall of the L-shaped support and extends to the left side of the L-shaped support, the outer surface of the sliding rod is slidably penetrated through the inner wall of the L-shaped support and extends to the left side of the L-shaped support, and the L-shaped support, the screw rod, the sliding rod and the pressing plate are arranged, the screw rod is rotated, the pressing plate is pressed against the valve ball and the valve seat, and the valve ball and the valve seat are positioned.

[0012] Further improvement lies in that the left end surface of the air inlet pipe is fixedly and throughly connected with the right end surface of the air tank, and the outer surface of the air inlet pipe is rotatably penetrated through the inner wall of the water tank and extends to the right side of the water tank, so that the high-pressure gas is introduced between the valve seat and the valve ball.

[0013] Further improvement lies in that the outer surface of the mounting frame is fixedly connected with the inner wall of the water tank, the bottom surface of the motor is fixedly connected with the top surface of the mounting frame, the gear is fixedly sleeved on the outer surface of the motor output shaft, and the gear ring is fixedly sleeved on the outer surface of the air tank, so that the motor is started to control the valve ball and the valve seat to sink into water.

[0014] Further improvement lies in that the sealing part further comprises an abutting block, a spring, a connecting rod and a sealing pad, the left end surface of the sealing pad is fixedly connected with the right end surface of the baffle, the outer surface of the sealing plate is slidably connected with the inner wall of the air outlet pipe, the left end of the spring is fixedly connected with the right end surface of the sealing plate, and the right end of the spring is fixedly connected with the inner wall of the air tank, so that the corresponding air outlet pipe is not used for air outlet when the valve seat and the valve ball are not installed, and the waste of energy is reduced.

[0015] Further improvement lies in that the left end of the connecting rod extends to the left side of the air outlet pipe, and the left end surface of the connecting rod is fixedly connected with the right end surface of the abutting block, so that the sealing plate is pushed to move rightwards when the valve ball is installed, and the air outlet pipe is used for air outlet to the left side.

[0016] Compared with the prior art, the beneficial effects of the oil well pump accessory sealing detection device are that: the elastic pad is used to block the valve seat, the screw rod is rotated, the valve ball is extruded to the valve seat to the right, the positioning of the valve ball and the valve seat is completed, the valve ball and the valve seat are sunk into the water surface, high-pressure gas is introduced through the air inlet pipe, when the bubbles between the valve ball and the valve seat are observed, the sealing between the valve ball and the valve seat can be determined, and the air leakage position is more directly displayed; the gear, the motor and the gear ring are arranged, the motor is started, the air tank, the valve seat and the valve ball are driven to rotate, the up-down movement of the valve seat and the valve ball is facilitated; the abutting block, the spring, the sealing plate, the connecting rod and the sealing pad are arranged, the elastic force of the spring is used to extrude the sealing pad on the left side of the sealing plate, when the valve seat and the valve ball are not installed, the air leakage of the air outlet pipe is avoided, in use, the valve ball drives the abutting block, the connecting rod and the sealing plate to move to the right, and the high-pressure gas is introduced between the valve seat and the valve ball. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the detection device of the utility model;

[0018] Figure 2 It is a three-dimensional structure front cross-sectional view of the detection device of the utility model;

[0019] Figure 3 It is Figure 2 It is a structure enlarged view of A in the middle;

[0020] Figure 4 It is a three-dimensional structure left side cross-sectional view of the water tank of the utility model;

[0021] Figure 5 It is a three-dimensional structure right side cross-sectional view of the detection device of the utility model.

[0022] In the drawing: 1 water tank, 2 detection device, 21 installation part, 22 sealing part, 211 pressing plate, 212 screw rod, 213 sliding rod, 214 L-shaped support, 215 gear, 216 motor, 217 gear ring, 218 air tank, 219 mounting frame, 210 air inlet pipe, 201 air outlet pipe, 202 elastic pad, 203 baffle, 221 abutting block, 222 spring, 223 sealing plate, 224 connecting rod, 225 sealing pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Referring to Figures 1-5 The utility model provides a technical scheme: an oil well pump accessory sealing property detection device, including the water tank 1 of being equipped with water, be provided with detection device 2 on water tank 1, and detection device 2 includes installation part 21,

[0025] Installation part 21 includes air tank 218, and the outer surface of air tank 218 is rotatably provided with mounting bracket 219 through first bearing, and the left end surface of air tank 218 is fixedly connected with gas outlet pipe 201, and installation part 21 further includes pressing plate 211, screw rod 212, sliding rod 213, L-shaped support 214, gear 215, motor 216, gear ring 217, air inlet pipe 210, elastic pad 202 and baffle 203,

[0026] The left end surface of air inlet pipe 210 is fixedly connected with the right end surface of air tank 218, and the outer surface of air inlet pipe 210 is rotatably penetrated through the inner wall of water tank 1 and extends to the right side of water tank 1,

[0027] The outer surface of mounting bracket 219 is fixedly connected with the inner wall of water tank 1,

[0028] The bottom surface of motor 216 is fixedly connected with the top surface of mounting bracket 219, gear 215 is fixedly sleeved on the outer surface of the output shaft of motor 216, and gear ring 217 is fixedly sleeved on the outer surface of air tank 218, by being provided with gear 215, motor 216 and gear ring 217, starting the motor drives air tank 218, valve seat and valve ball to rotate, and it is convenient to control valve seat and valve ball to move up and down,

[0029] The right end surface of L-shaped support 214 is fixedly connected with the left end surface of air tank 218, the right end surface of screw rod 212 is rotatably connected with the left end surface of pressing plate 211 through bearing seat, the left end surface of pressing plate 211 is fixedly connected with the right end surface of sliding rod 213, the outer surface of screw rod 212 is threadedly penetrated through the inner wall of L-shaped support 214 and extends to the left side of L-shaped support 214, and the outer surface of sliding rod 213 is slidably penetrated through the inner wall of L-shaped support 214 and extends to the left side of L-shaped support 214,

[0030] The inner wall of gas outlet pipe 201 is provided with a groove, the outer surface of elastic pad 202 extends to the inside of the groove and is fixedly connected with the inner wall of gas outlet pipe 201, and the outer surface of baffle 203 is fixedly connected with the inner wall of gas outlet pipe 201, by being provided with pressing plate 211, screw rod 212, sliding rod 213, L-shaped support 214, air tank 218, mounting bracket 219, air inlet pipe 210, gas outlet pipe 201, elastic pad 202 and baffle 203, the valve seat is clamped by elastic pad 202, screw rod 212 is rotated, the valve ball is extruded to the valve seat right, the positioning of valve ball and valve seat is completed, the valve ball and valve seat are sunk into the water surface, and high-pressure gas is introduced through air inlet pipe 210, when the air bubble between valve ball and valve seat is observed, the sealing property between valve ball and valve seat can be judged, and the air leakage position is more directly displayed.

[0031] The sealing part 22 is arranged inside the air outlet pipe 201;

[0032] The sealing part 22 comprises a sealing plate 223, the left end surface of the sealing plate 223 is fixedly connected with a connecting rod 224, the sealing part 22 further comprises an abutting block 221, a spring 222, the connecting rod 224 and a sealing gasket 225;

[0033] The left end surface of the sealing gasket 225 is fixedly connected with the right end surface of the baffle 203, the outer surface of the sealing plate 223 is slidingly connected with the inner wall of the air outlet pipe 201, the left end of the connecting rod 224 extends to the left side of the air outlet pipe 201, and the left end surface of the connecting rod 224 is fixedly connected with the right end surface of the abutting block 221;

[0034] The left end of the spring 222 is fixedly connected with the right end surface of the sealing plate 223, and the right end of the spring 222 is fixedly connected with the inner wall of the air tank 218; by arranging the abutting block 221, the spring 222, the sealing plate 223, the connecting rod 224 and the sealing gasket 225, the left side of the sealing plate 223 is pressed against the sealing gasket 225 by the elastic force of the spring 222, air leakage of the air outlet pipe 201 is avoided when the valve seat and the valve ball are not installed, and when in use, the valve ball drives the abutting block 221, the connecting rod 224 and the sealing plate 225 to move rightwards, and high-pressure gas is guided into the space between the valve seat and the valve ball.

[0035] In use, high-pressure gas is guided into the air outlet pipe 201 through the air inlet pipe 210, high-pressure air is generated in the air tank 218 and the air outlet pipe 201, the right end of the valve seat is clamped into the air outlet pipe 201, the inner wall of the elastic pad 202 is pressed against the outer surface of the valve seat, the screw rod 212 is rotated, the screw rod 212 drives the pressing plate 211 to move rightwards, the valve ball is pressed against the valve plate rightwards, the abutting block 221 is driven to move rightwards, the connecting rod 224 and the sealing plate 223 are driven to move rightwards, high-pressure air in the air outlet pipe 201 is discharged to the space between the valve seat and the valve ball, the motor 216 is started, the air tank 218 is controlled to rotate through the gear 215 and the gear ring 217, the valve seat and the valve ball are sunk into water, and if there is no bubble between the valve seat and the valve ball, the sealing property between the valve seat and the valve ball is good, and if there is a bubble between the valve seat and the valve ball, there is a gap at the position of the bubble.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the tightness of a sucker rod pump fitting, comprising a water tank (1) containing a water body, characterized in that: The water tank (1) is equipped with a detection device (2), which includes a mounting part (21). The mounting part (21) includes an air box (218), and a mounting bracket (219) is rotatably mounted on the outer surface of the air box (218) through a first bearing. An air outlet pipe (201) is fixedly connected to the left end face of the air box (218). The air outlet pipe (201) is provided with a sealing part (22). The sealing part (22) includes a sealing plate (223), and a connecting rod (224) is fixedly connected to the left end face of the sealing plate (223).

2. The device for detecting the sealing property of the pump accessory of claim 1, wherein: The mounting part (21) also includes a pressure plate (211), a screw (212), a slide bar (213), an L-shaped bracket (214), a gear (215), a motor (216), a gear ring (217), an air inlet pipe (210), an elastic pad (202), and a baffle (203). The inner wall of the air outlet pipe (201) is provided with a groove. The outer surface of the elastic pad (202) extends into the groove and is fixedly connected to the inner wall of the air outlet pipe (201). The outer surface of the baffle (203) is fixedly connected to the inner wall of the air outlet pipe (201).

3. The device for detecting the sealing property of the pump accessory of claim 2, wherein: The right end face of the L-shaped bracket (214) is fixedly connected to the left end face of the air box (218). The right end face of the screw (212) is rotatably connected to the left end face of the pressure plate (211) through a bearing seat. The left end face of the pressure plate (211) is fixedly connected to the right end face of the slide rod (213). The outer surface of the screw (212) is threaded through the inner wall of the L-shaped bracket (214) and extends to the left side of the L-shaped bracket (214). The outer surface of the slide rod (213) slides through the inner wall of the L-shaped bracket (214) and extends to the left side of the L-shaped bracket (214).

4. The device for detecting the sealing property of the pump accessory of claim 2, wherein: The left end face of the air intake pipe (210) is fixedly connected to the right end face of the air box (218). The outer surface of the air intake pipe (210) rotates through the inner wall of the water tank (1) via the second bearing and extends to the right side of the water tank (1).

5. The device for detecting the sealing property of the pump accessory of claim 2, wherein: The outer surface of the mounting bracket (219) is fixedly connected to the inner wall of the water tank (1), the bottom surface of the motor (216) is fixedly connected to the top surface of the mounting bracket (219), the gear (215) is fixedly sleeved on the outer surface of the output shaft of the motor (216), and the gear ring (217) is fixedly sleeved on the outer surface of the air box (218).

6. The device for detecting the sealing property of a sucker rod pump accessory of claim 1, wherein: The sealing part (22) further includes an abutment block (221), a spring (222), a connecting rod (224) and a sealing gasket (225). The left end face of the sealing gasket (225) is fixedly connected to the right end face of the baffle (203). The outer surface of the sealing plate (223) is slidably connected to the inner wall of the air outlet pipe (201). The left end of the spring (222) is fixedly connected to the right end face of the sealing plate (223). The right end of the spring (222) is fixedly connected to the inner wall of the air box (218).

7. The device for detecting the sealing property of the pump accessory of claim 6, wherein: The left end of the connecting rod (224) extends to the left side of the air outlet pipe (201), and the left end face of the connecting rod (224) is fixedly connected to the right end face of the abutment block (221).

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