Disclosure of Invention
In order to overcome when ambient temperature is lower, paraffin can be appeared to the crude oil in the oil pressure seat, when changing the oil pressure table, the oil pressure seat can have the excess pressure, when the oil pressure was undulant, the oil pressure seat failed to slow down the undulant shortcoming of oil pressure, the technical problem that solve: an oil pressure seat with residual pressure eliminating function for preventing crude oil from being left in oil field is disclosed.
The technical scheme of the invention is as follows: an embedded oil pressure seat for preventing crude oil from remaining for an oil field comprises an outer sleeve, a first sealing ring, an oil inlet part, an oil gas transmission shell, a second sealing ring, an oil gas sleeve, an arc pipe, a buffer part, a crude oil back-pushing part, a one-way oil gas conveying part and a rotary switch, wherein the outer sleeve is partially embedded into a crude oil pipeline, the upper part and the lower part of the inner surface of the outer sleeve are respectively provided with an internal thread, the inner surface of the lower part of the outer sleeve is fixedly connected with the first sealing ring, the middle part of the outer sleeve is provided with a crude oil first transmission cavity from inside to outside, the inner surface of the outer sleeve is rotatably connected with the oil inlet part, the oil inlet part is used for limiting the crude oil to enter and exit the oil pressure seat and the buffer part, the inner surface of the outer sleeve is also provided with the oil gas transmission shell, the oil gas transmission shell is provided with openings at the upper end and the lower end, the radius of the upper end opening is small, the oil gas transmission shell is provided with an external thread, the external thread of the oil gas transmission shell is matched with the internal thread at the lower part of the outer sleeve, the oil-gas transmission shell is characterized in that a second sealing ring is fixedly connected to the lower portion of the oil-gas transmission shell, two sliding grooves which are bilaterally symmetrical are formed in the matching portion of the second sealing ring and the oil-gas transmission shell, the inner side portion of each sliding groove is in a trapezoid block shape, the outer side portion of each sliding groove is in a rectangle shape, T-shaped grooves are symmetrically formed in the front side wall and the rear side wall of each sliding groove, four arc oil discharge grooves are circumferentially formed in the outer surface of the middle upper portion of the oil-gas transmission shell, the arc oil discharge grooves and a first crude oil transmission cavity are sealed in a staggered mode when an oil pressure seat is opened, the arc oil discharge grooves and the first crude oil transmission cavity are communicated when the oil pressure seat is closed, a second crude oil transmission cavity is formed in the oil-gas transmission shell, the second crude oil transmission cavity is communicated with the arc oil discharge grooves, two symmetrical limiting holes are formed in the inner surface of the upper portion of the oil-gas transmission shell, the limiting holes are in a round-head shape, the limiting holes are arranged in a staggered mode, the limiting holes are positioned above the arc oil discharge grooves, two oil-gas transmission shell, the oil-gas transmission shell is fixedly connected with two oil sleeves which are symmetrical front and rear, two oil gas sleeve pipe rigid couplings have the arc, the arc is symmetrical around the arc to be set up, oil gas sleeve pipe and arc communicate with each other, the buffer part sets up in oil gas transmission casing, the buffer part is used for the buffering of crude oil, crude oil pushes back the part setting inside oil gas transmission casing, crude oil pushes back the discharge of the remaining a small amount of crude oil in the part is used for the oil pressure seat, one-way oil gas conveying part sets up inside crude oil second transmission cavity, one-way oil gas conveying part is used for the one-way conveying of crude oil and gas, oil pressure gauge and rotary switch rigid coupling are on oil gas transmission casing upper surface, oil pressure gauge and oil gas transmission casing upper end opening cooperation, L shape oil outlet pipe is installed to the crude oil pipeline right part, L shape oil outlet pipe is transparent, L shape oil outlet pipe left end embedding outer tube middle part communicates with each other with crude oil first transmission cavity, the oil storage tank is installed to L shape oil outlet pipe lower extreme.
More preferably, the pitch of the upper internal thread and the lower internal thread of the outer sleeve are different, and the pitch of the upper internal thread is greater than the pitch of the lower internal thread.
More preferably, the oil inlet part is including the screw thread ring, the head rod, the oil inlet pole, oil inlet dish and first spacing ring, the screw thread ring outside is equipped with the external screw thread, the external screw thread of screw thread ring and the interior screw-thread fit on outer tube upper portion, the height that highly is greater than the screw thread ring was seted up to the internal thread on outer tube upper portion, the screw thread ring is used for reciprocating of oil inlet part, the head rod bilateral symmetry is provided with two, two head rods rigid coupling respectively in screw thread ring internal surface lower part, oil inlet pole bilateral symmetry is provided with two, two oil inlet pole upper portions respectively with adjacent head rod rigid coupling, oil inlet pole lower extreme rigid coupling has the oil inlet dish, upper portion rigid coupling has first spacing ring in the oil inlet pole, first spacing ring sets up inside oil gas transmission casing, first spacing ring is used for the spacing of buffering part. The oil inlet component is used for limiting the crude oil inlet and outlet oil pressure seat and the buffer component.
More preferably, the buffering component comprises buffering guide rods, buffering rings, fixing columns, buffering springs, a first limiting rod, a first limiting spring, a second limiting rod, limiting balls, a second limiting spring and buffering limiting components, the buffering guide rods are symmetrically arranged in front and back, the two buffering guide rods are respectively and fixedly connected in an oil-gas casing, the diameter of each buffering guide rod is smaller than that of the oil-gas casing, the buffering rings are fixedly connected to the lower ends of the buffering guide rods, the lower parts of the buffering rings are bilaterally and symmetrically provided with two limiting grooves, the upper surfaces of the buffering rings are fixedly connected with two symmetrical fixing columns, the fixing columns are positioned below limiting holes, the buffering rings are provided with two symmetrical limiting holes, the limiting holes are positioned on the lower sides of the fixing columns, the buffering springs are connected between the upper surfaces inside the oil-gas transmission shell and the buffering rings, the first limiting rods, the second limiting rods and the limiting balls are slidably connected in the limiting holes, the right ends of the first limiting rods are round heads, the first limiting rod is matched with the limiting hole, a first limiting spring is connected between the first limiting rod and the second limiting rod, the second limiting rod is fixedly connected with the limiting ball, a second limiting spring is connected between the limiting ball and the limiting hole, the upper portion of the fixed column is slidably connected with a buffering limiting assembly, and the buffering assembly is used for oil inlet and buffering of crude oil.
More preferably, the buffering limiting assembly comprises a second limiting ring, a third limiting spring, a second connecting rod and a buffering circular plate, the upper cover of the fixed column is provided with the third limiting spring, the lower end of the third limiting spring is fixedly connected with the buffering ring, the upper end of the third limiting spring is fixedly connected with the second limiting ring, the lower surface of the second limiting ring is fixedly connected with two symmetrical second connecting rods, the second connecting rods are adjacent to the fixed column, the lower end of the second connecting rod is fixedly connected with the buffering circular plate, the buffering circular plate is provided with a plurality of oil inlet buffering holes, the buffering circular plate is symmetrically provided with two clamping grooves matched with the limiting balls, the clamping grooves are located below the second connecting rods, and the buffering limiting assembly is used for buffering crude oil and limiting the buffering component.
More preferably, the longitudinal section of the oil inlet buffer hole is arc-shaped, and two ends of the oil inlet buffer hole are respectively communicated with the upper surface and the side surface of the buffer circular plate for buffering crude oil and slowing down oil pressure fluctuation.
More preferably, the crude oil pushing part comprises an oil discharge guide rod, an oil discharge sealing ring, an oil discharge spring, an oil discharge shell and a T-shaped guide block, four oil discharge guide rods are circumferentially arranged in a crude oil second transmission cavity, the oil discharge guide rod is fixedly connected with the oil-gas transmission shell, the crude oil second transmission cavity is slidably connected with the oil discharge sealing ring, the oil discharge sealing ring is slidably connected with the oil discharge guide rod, the oil discharge sealing ring is positioned below the one-way oil-gas conveying part, when the oil pressure seat is in an unopened state, the oil discharge sealing ring is as high as the arc oil discharge groove, the oil discharge guide rod is sleeved with the oil discharge spring, the lower end of the oil discharge spring is fixedly connected with the oil discharge sealing ring, the upper end of the oil discharge spring is fixedly connected with the oil-gas transmission shell, the oil discharge shell is slidably connected with the sliding groove, the inner side part of the oil discharge shell is in a trapezoidal block shape, the inner side part of the oil discharge shell is matched with the limit groove, the outer side part of the oil discharge shell is arranged in a triangular lug, the oil extraction casing middle part has seted up the cylinder hole from inside to outside, and the triangle through-hole of fore-and-aft direction is seted up to oil extraction casing outside portion, and the cylinder hole and the triangle through-hole of oil extraction casing communicate with each other, and the symmetry rigid coupling has T shape guide block around the oil extraction casing, is connected with guide spring between T shape guide block and the oil gas transmission casing, and crude oil back-pushing part is used for discharging the crude oil in the crude oil second transmission cavity.
More preferably, before the oil pressure seat is opened, the left part of the oil discharge shell is matched and sealed with the limiting groove, the triangular through hole of the oil discharge shell is sealed with the oil-gas transmission shell, after the oil pressure seat is opened, the oil discharge shell is matched with the oil-gas transmission shell, and the triangular lug of the oil discharge shell is positioned in the second crude oil transmission cavity.
More preferably, one-way oil gas transport unit is including adapter sleeve, the oil gas sealing ring, the connecting plate, connecting spring and oil gas switch, it is equipped with adapter sleeve to arrange oil guide bar cover, adapter sleeve and oil gas transmission casing internal portion lower surface rigid coupling, adapter sleeve overlaps upper portion in the buffering guide bar, adapter sleeve lower part rigid coupling has the oil gas sealing ring, oil gas sealing ring and oil gas transmission casing rigid coupling, logical groove has been seted up at oil gas sealing ring middle part, the connecting plate is provided with a plurality of along oil gas sealing ring circumference, a plurality of connecting plate respectively with oil gas sealing ring upper portion rigid coupling, surface symmetry rigid coupling has two connecting spring under the connecting plate, two connecting spring lower extreme rigid couplings have oil gas switch, oil gas switch and oil gas sealing ring cooperation, one-way oil gas transport unit is used for the one-way transmission of oil gas.
More preferably, oil gas sealing ring upper portion is inside sunken setting, and oil gas switch upper portion is the setting of cusp, and oil gas sealing ring and oil gas switch cooperation are used for crude oil to discharge.
The invention has the beneficial effects that: according to the invention, the valve switch on the oil pressure seat is arranged at one end of the oil pressure seat far away from the pipeline, and the oil pressure seat is embedded into the oil pipe, so that the length of the oil pressure seat is shortened, the temperature in the oil pressure seat is the same as the temperature in the pipeline, paraffin precipitation is reduced, the service life of the oil pressure gauge is prolonged, the accuracy of oil pressure data is improved, crude oil is buffered through the buffering component, the effect of protecting the oil pressure gauge is achieved, the fluctuation of oil pressure is slowed down through the oil inlet buffering hole, residual pressure and oil discharge are eliminated through the matching of the oil inlet component, the buffering component and the crude oil push-back component, and the risk of human body injury is reduced.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective view of the present invention.
Fig. 3 is a sectional view of a part of a three-dimensional structure in a closed state of the present invention.
Fig. 4 is a sectional view of a part of the three-dimensional structure of the present invention in the open state.
FIG. 5 is a schematic perspective view of the present invention at A.
FIG. 6 is a perspective sectional view of the oil and gas transfer housing of the present invention.
Fig. 7 is a schematic perspective view of the oil inlet part of the present invention.
Fig. 8 is a perspective view of the cushioning member of the present invention.
Fig. 9 is a sectional view of a part of a three-dimensional structure in an open state of the present invention.
Fig. 10 is a schematic perspective view of the present invention at E.
FIG. 11 is a schematic perspective view of a crude oil push-back unit according to the present invention.
FIG. 12 is a sectional view showing a partial perspective structure of a crude oil push-back unit according to the present invention.
Fig. 13 is a schematic perspective view of the present invention at B.
Fig. 14 is an enlarged sectional view of a portion of the three-dimensional structure of the present invention.
Fig. 15 is a schematic perspective view of the present invention at C.
Fig. 16 is a schematic perspective view of the present invention at D.
Reference numbers in the drawings: 1-outer sleeve, 101-first sealing ring, 102-crude oil first transfer cavity, 2-oil inlet part, 201-threaded ring, 202-first connecting rod, 203-oil inlet rod, 204-oil inlet pan, 205-first limiting ring, 3-oil gas transfer shell, 301-second sealing ring, 302-sliding chute, 303-arc oil discharge groove, 304-crude oil second transfer cavity, 305-limiting hole, 306-oil gas sleeve, 307-arc pipe, 4-buffering part, 401-buffering guide rod, 402-buffering ring, 4021-limiting groove, 4022-limiting hole, 4024-fixing column, 403-buffering spring, 4041-first limiting rod, 4042-first limiting spring, 4043-second limiting rod, 4044-limiting ball, 4045-second limit spring, 405-second limit ring, 406-third limit spring, 407-second connecting rod, 408-buffer circular plate, 4081-oil inlet buffer hole, 4082-clamping groove, 5-crude oil push-back component, 501-oil discharge guide rod, 502-oil discharge sealing ring, 503-oil discharge spring, 5041-oil discharge shell, 5042-T-shaped guide block, 5043-guide spring, 6-unidirectional oil gas conveying component, 601-connecting sleeve, 602-oil gas sealing ring, 603-connecting plate, 604-connecting spring, 605-oil gas switch, 7-oil pressure gauge and 8-rotary switch.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Example 1
An oil pressure seat for preventing crude oil from remaining in an embedded manner for an oil field is disclosed, as shown in fig. 1-6, and comprises an outer sleeve 1, a first sealing ring 101, an oil inlet part 2, an oil-gas transmission shell 3, a second sealing ring 301, an oil-gas sleeve 306, an arc-shaped pipe 307, a buffer part 4, a crude oil back-pushing part 5, a one-way oil-gas conveying part 6 and a rotary switch 8, wherein a crude oil pipeline is embedded into a part of the outer sleeve 1, internal threads are respectively arranged on the upper part and the lower part of the inner surface of the outer sleeve 1, the thread pitches of the internal threads on the upper part and the lower part of the outer sleeve 1 are different, the thread pitch of the internal threads on the upper part is greater than that of the internal threads on the lower part, the first sealing ring 101 is fixedly connected to the inner surface of the lower part of the outer sleeve 1, a first crude oil transmission cavity 102 is arranged in the middle part of the outer sleeve 1 from inside to outside, the inner surface of the outer sleeve 1 is rotatably connected with the oil inlet part 2, the oil inlet part 2 is used for the oil outlet and inlet pressure seat, the oil-gas transmission shell 3 is further arranged on the inner surface of the outer sleeve 1, the oil gas transmission shell 3 is provided with openings at the upper end and the lower end, the radius of the opening at the upper end is small, the oil gas transmission shell 3 is provided with external threads, the external threads of the oil gas transmission shell 3 are matched with the internal threads at the lower part of the outer sleeve 1, the lower part of the oil gas transmission shell 3 is fixedly connected with a second sealing ring 301, the matching part of the second sealing ring 301 and the oil gas transmission shell 3 is provided with two sliding chutes 302 which are bilaterally symmetrical, the shape of the inner side part of each sliding chute 302 is trapezoidal block, the outer side part of each sliding chute 302 is rectangular, the front side wall and the rear side wall of each sliding chute 302 are symmetrically provided with T-shaped grooves, the outer surface of the middle upper part of the oil gas transmission shell 3 is circumferentially provided with four arc oil discharge grooves 303, when the oil pressure seat is opened, the arc oil discharge grooves 303 and the first crude oil transmission cavity 102 are sealed in a staggered manner, the sealing effect of the internal environment and the external environment of the oil pressure seat is realized, when the oil pressure seat is closed, the arc oil discharge grooves 303 are communicated with the first crude oil transmission cavity 102, the effect of communicating the environment in the oil pressure seat with the external environment is realized, the oil-gas transmission shell 3 is provided with a crude oil second transmission cavity 304, the crude oil second transmission cavity 304 is communicated with the arc-shaped oil discharge groove 303, the inner surface of the upper part of the oil-gas transmission shell 3 is provided with two symmetrical limiting holes 305, the limiting holes 305 are used for limiting the buffer component 4, the limiting holes 305 and the sliding grooves 302 are arranged in a staggered way, the limiting holes 305 are positioned above the arc-shaped oil discharge groove 303, the upper surface of the oil-gas transmission shell 3 is fixedly connected with two oil-gas sleeves 306 which are symmetrical in the front and back, the oil-gas sleeves 306 are fixedly connected with arc-shaped pipes 307, the arc-shaped pipes 307 are symmetrically arranged in the front and back directions, the oil-gas sleeves 306 are communicated with the arc-shaped pipes 307, the oil-gas sleeves 306 and the arc-shaped pipes 307 are used for oil-gas transmission of the oil-gas transmission shell 3 and the crude oil second transmission cavity 304, the buffer component 4 is arranged in the oil-gas transmission shell 3 and the buffer component 4 is used for buffering crude oil, and protecting the oil pressure meter 7, crude oil pushes back the part 5 and sets up inside oil gas transmission casing 3, crude oil pushes back the discharge of the remaining a small amount of crude oil of part 5 is used for the oil pressure seat, one-way oil gas delivery part 6 sets up inside crude oil second transmission cavity 304, one-way oil gas delivery part 6 is used for the one-way conveying of crude oil and gas, one-way oil gas delivery part 6 has realized the sealed effect of oneself when arranging oil, help the better discharge of crude oil, oil pressure gauge 7 and rotary switch 8 rigid coupling are on oil gas transmission casing 3 upper surface, oil pressure gauge 7 and the cooperation of oil gas transmission casing 3 upper end opening, L shape oil outlet pipe is installed to crude oil pipeline right part, L shape oil outlet pipe is transparent, L shape oil outlet pipe left end embedding outer tube 1 middle part communicates with each other with crude oil first transmission cavity 102, the oil storage tank is installed to L shape oil outlet pipe lower extreme.
When the oil pressure seat in a closed state is installed on the upper portion of an oil pipe, and an operator needs to perform oil pressure detection on crude oil in the oil pipe, the operator firstly opens the oil pressure seat, the operator firstly rotates the rotary switch 8 clockwise for two circles, the rotary switch 8 drives the oil-gas transmission shell 3 and the second sealing ring 301 to move downwards, the oil-gas transmission shell 3 drives the oil inlet part 2 to move downwards, the distance of the downward movement of the oil inlet part 2 is greater than the distance of the downward movement of the oil-gas transmission shell 3, the oil-gas transmission shell 3 and the outer sleeve 1 are dislocated, the arc-shaped oil discharge groove 303 is in contact with the inner surface of the outer sleeve 1 below the crude oil first transmission cavity 102, the crude oil cannot enter the crude oil first transmission cavity 102 through the arc-shaped oil discharge groove 303, the effect of isolating the crude oil in the oil transmission shell 3 from the outside is realized, and the operator rotates the rotary switch 8 clockwise for two circles, the oil inlet part 2 and the oil gas transmission shell 3 are dislocated, crude oil enters the oil gas transmission shell 3 to impact the buffer part 4, the buffer part 4 buffers the process of the crude oil entering the oil gas transmission shell 3, in the process of the buffer part 4 buffering the crude oil, the buffer part 4 pushes the gas in the oil gas transmission shell 3 to enter the upper part of the crude oil second transmission cavity 304, the gas pressure on the upper part of the crude oil second transmission cavity 304 is increased to push the one-way oil gas transmission part 6 to be opened, after the one-way oil gas transmission part 6 is opened, the gas on the upper part of the crude oil second transmission cavity 304 enables the crude oil push-back part 5 to move and carry out self-limiting, the buffer part 4 carries out self-limiting after the buffer is completed, the crude oil is contacted with the lower end of the oil pressure gauge 7, the crude oil continuously flows upwards into the upper part of the crude oil second transmission cavity 304 through the oil gas sleeve 306 and the arc pipe 307, and enters the lower part of the crude oil second transmission cavity 304 through the opened one-way oil gas transmission part 6, when the pressures in the oil pressure seat and the crude oil pipeline are the same, the oil pressure gauge 7 detects the oil pressure, in the detection process, when the oil pressure fluctuates, the buffer component 4 is used for slowing down the fluctuation of the oil pressure, when the oil pressure gauge 7 needs to be replaced, an operator firstly closes the oil pressure seat, the operator rotates the rotary switch 8 anticlockwise for two circles first, the oil inlet component 2 and the oil-gas transmission shell 3 are sealed in a staggered mode, the crude oil cannot enter the oil-gas transmission shell 3, the arc-shaped oil discharge groove 303 is not communicated with the crude oil first transmission cavity 102, the operator continues rotating the rotary switch 8 anticlockwise, the arc-shaped oil discharge groove 303 is communicated with the crude oil first transmission cavity 102, the rotary switch 8 stops rotating after the L-shaped oil pipeline is observed to have the crude oil flowing out, the oil gauge 7 is replaced after the L-shaped oil pipeline is observed to have no crude oil flowing out, the oil pressure gauge 7 is detached, the rotary switch 8 continues to rotate anticlockwise for two circles, the rotary switch 8 drives the oil inlet part 2 to move upwards, the oil inlet part 2 relieves the limit of the buffer part 4, the buffer part 4 moves downwards to perform an oil discharging process, most of crude oil in the oil-gas transmission shell 3 is discharged by the buffer part 4, when the buffer part 4 reaches the bottom and contacts with the oil inlet part 2, the buffer part 4 relieves the limit of the crude oil pushing-back part 5, the crude oil pushing-back part 5 exhausts residual crude oil in the crude oil second transmission cavity 304, the discharging work of the crude oil in the oil pressure seat is completed, and an operator continuously repeats the operation of opening the oil pressure seat after installing a new oil pressure gauge 7.
Example 2
On the basis of embodiment 1, as shown in fig. 3, 4 and 7, the oil inlet part 2 includes a threaded ring 201, first connecting rods 202, oil inlet rods 203, an oil inlet disc 204 and a first limiting ring 205, the external part of the threaded ring 201 is provided with external threads, the external threads of the threaded ring 201 are matched with the internal threads on the upper part of the outer sleeve 1, the internal threads on the upper part of the outer sleeve 1 are provided with a height larger than that of the threaded ring 201, the threaded ring 201 is used for the up-and-down movement of the oil inlet part 2, the first connecting rods 202 are symmetrically arranged in a left-and-right manner, the two first connecting rods 202 are respectively fixedly connected to the lower part of the inner surface of the threaded ring 201, the two oil inlet rods 203 are symmetrically arranged in a left-and-right manner, the upper parts of the two oil inlet rods 203 are respectively fixedly connected to the adjacent first connecting rods 202, the lower ends of the oil inlet rods 203 are fixedly connected to an oil inlet disc 204, the upper part of the oil inlet rods 203 is fixedly connected to the first limiting ring 205, the first limiting ring 205 is arranged inside the oil-gas transmission housing 3, the first stopper ring 205 is used for stopping the cushion member 4.
As shown in fig. 3, 4, and 8-10, the buffer part 4 includes two buffer guide rods 401, two buffer rings 402, two fixed columns 4024, two buffer springs 403, a first limit rod 4041, a first limit spring 4042, a second limit rod 4043, a limit ball 4044, a second limit spring 4045, and two buffer limit components, the two buffer guide rods 401 are symmetrically disposed in front and back, the two buffer guide rods 401 are respectively fixed in the oil-gas casing 306, the diameter of the buffer guide rods 401 is smaller than that of the oil-gas casing 306, the buffer rings 402 are fixed at the lower end of the buffer guide rods 401, two limit grooves 4021 are symmetrically disposed at the lower portion of the buffer rings 402, the upper surface of the buffer rings 402 is fixed with two symmetrical fixed columns 4024, the fixed columns 4024 are disposed below the limit holes 305, the buffer rings 402 are provided with two symmetrical limit holes 4022, the limit holes 4022 are disposed at the lower side of the fixed columns 4024, the buffer springs 403 are connected between the upper surface of the inside of the oil-gas transmission housing 3 and the buffer rings 402, spacing hole 4022 sliding connection has first gag lever post 4041, second gag lever post 4043 and spacing ball 4044, first gag lever post 4041 right-hand member is the button head setting, first gag lever post 4041 and the cooperation of spacing hole 305, be connected with first spacing spring 4042 between first gag lever post 4041 and the second gag lever post 4043, second gag lever post 4043 and spacing ball 4044 rigid coupling, be connected with second spacing spring 4045 between spacing ball 4044 and the spacing hole 4022, fixed column 4024 upper portion sliding connection has the spacing subassembly of buffering, the spacing subassembly of buffering is used for the oil feed and the buffering of crude oil.
As shown in fig. 3, 4, 8-10 and 15, the buffering and limiting assembly includes a second limiting ring 405, a third limiting spring 406, a second connecting rod 407 and a buffering circular plate 408, the third limiting spring 406 is sleeved on the upper portion of the fixing column 4024, the lower end of the third limiting spring 406 is fixedly connected to the buffering ring 402, the second limiting ring 405 is fixedly connected to the upper end of the third limiting spring 406, two symmetrical second connecting rods 407 are fixedly connected to the lower surface of the second limiting ring 405, the second connecting rods 407 are adjacent to the fixing column 4024, the buffering circular plate 408 is fixedly connected to the lower end of the second connecting rods 407, the thickness of the buffering circular plate 408 is the same as that of the buffering ring 402, the buffering ring 402 and the buffering circular plate 408 are matched with the spring 403 for buffering crude oil entering the oil-gas transmission housing 3, so as to achieve the effect of protecting the oil pressure gauge, the buffering circular plate 408 is provided with a plurality of oil inlet buffering holes 4081, the longitudinal cross section of the oil inlet buffering holes 4081 is arc, the oil inlet buffer hole 4081 communicates the buffer circular plate 408 upper surface and the side forms certain contained angle for crude oil buffering and oil pressure fluctuation slowing down, increases the life of oil pressure gauge, and buffer circular plate 408 symmetry is seted up two and spacing ball 4044 complex draw-in grooves 4082, and draw-in groove 4082 is located the second connecting rod 407 below.
As shown in fig. 3 and fig. 11-fig. 16, the crude oil pushing back component 5 includes an oil discharge guide rod 501, an oil discharge sealing ring 502, an oil discharge spring 503, an oil discharge housing 5041 and a T-shaped guide block 5042, four oil discharge guide rods 501 are arranged in the inner circumference of the crude oil second transmission cavity 304, the four oil discharge guide rods 501 are respectively fixed with the oil-gas transmission housing 3, the oil discharge sealing ring 502 is sliding connected with the oil discharge guide rod 502 in the crude oil second transmission cavity 304, the oil discharge sealing ring 502 is located below the one-way oil-gas conveying component 6, when the oil pressure seat is in the unopened state, the oil discharge sealing ring 502 is the same height as the arc oil discharge groove 303, the oil discharge guide rod 501 is sleeved with the oil discharge spring 503, the lower end of the oil discharge spring 503 is fixed with the oil discharge sealing ring 502, the upper end of the oil discharge spring 503 is fixed with the oil-gas transmission housing 3, the oil discharge housing 5041 is sliding connected with the oil discharge housing 5041 in the sliding groove 302, the inner side of the oil discharge housing 5041 is a trapezoid block, the inside of the oil discharge casing 5041 is matched with the limit groove 4021, the outside of the oil discharge casing 5041 is provided with a triangular convex block, the middle of the oil discharge casing 5041 is provided with a cylindrical hole from inside to outside, the outside of the oil discharge casing 5041 is provided with a triangular through hole in the front-back direction, the cylindrical hole of the oil discharge casing 5041 is communicated with the triangular through hole, before the oil pressure seat is opened, the left of the oil discharge casing 5041 is matched and sealed with the limit groove 4021, the triangular through hole of the oil discharge casing 5041 is sealed with the oil-gas transmission casing 3, after the oil pressure seat is opened, the oil discharge casing 5041 is matched with the oil-gas transmission casing 3, the triangular convex block of the oil discharge casing 5041 is positioned in the crude oil second transmission cavity 304, the front and back of the oil discharge casing 5041 are symmetrically and fixedly connected with a T-shaped guide block 5042, and the oil-gas transmission casing 3 are connected with a guide spring 5043.
As shown in fig. 3, 5 and 14, the unidirectional oil-gas conveying component 6 includes a connection sleeve 601, an oil-gas sealing ring 602, a connection plate 603, a connection spring 604 and an oil-gas switch 605, the connection sleeve 601 is sleeved on the upper portion of the oil discharge guide rod 501, the connection sleeve 601 is fixedly connected with the upper surface of the crude oil second transfer cavity 304, the connection sleeve 601 is sleeved on the middle upper portion of the buffer guide rod 401, the oil-gas sealing ring 602 is fixedly connected with the lower portion of the connection sleeve 601, the oil-gas sealing ring 602 is fixedly connected with the oil-gas transfer shell 3, a through groove is formed in the middle of the oil-gas sealing ring 602, a plurality of connection plates 603 are arranged along the circumferential direction of the oil-gas sealing ring, the plurality of connection plates 603 are respectively fixedly connected with the oil-gas sealing ring, two connection springs 604 are symmetrically and fixedly connected to the lower surface of the connection plates 603, the oil-gas switch 605 is fixedly connected to the lower end of the two connection springs 604, the oil-gas switch 605 is matched with the oil-gas sealing ring 602, the upper portion of the oil-gas sealing ring 602 is recessed inward, the upper portion of oil gas switch 605 is the setting of cusp, and oil gas sealing ring 602 and oil gas switch 605 cooperation are used for crude oil to be discharged the time can not get into crude oil second transfer cavity 304 upper portion again.
When an operator needs to open the oil pressure seat, the operator rotates the rotary switch 8 clockwise for two circles, in the rotating process, the threaded ring 201, the first connecting rod 202, the oil inlet rod 203, the oil inlet disc 204 and the first limiting ring 205 of the oil inlet part 2 move downwards, the threaded ring 201 is close to the upper surface of the oil-gas transmission shell 3, the oil inlet disc 204 is far away from the buffer part 4, the first limiting ring 205 is far away from the upper surface of the oil-gas transmission shell 3, after the rotation is completed, the arc-shaped oil discharge groove 303 is in contact with the inner surface of the outer sleeve 1 below the crude oil first transmission cavity 102, the arc-shaped oil discharge groove 303 is matched with the crude oil first transmission cavity 102 to achieve the effect of isolating the oil-gas transmission shell 3 from the external environment, at the moment, the oil inlet disc 204 and the second sealing ring 301 are still in a closed state, then the operator rotates the rotary switch 8 clockwise for two circles for the second time, in the rotating process, the arc-shaped oil discharge groove 303 is far away from the crude oil first transmission cavity 102, the oil inlet disc 204 is far away from the second sealing ring 301 to remove sealing, crude oil enters the oil-gas transmission shell 3, in the process that the buffer part 4 buffers the crude oil, the crude oil pushes the buffer ring 402, the fixed column 4024, the first limit rod 4041, the first limit spring 4042, the second limit rod 4043, the limit ball 4044, the second limit spring 4045 and the buffer limit component to move upwards, in the process that the buffer ring 402 moves upwards, the buffer ring 402 and the buffer limit component are matched with the buffer spring 403 to realize the buffer effect on the crude oil, the buffer ring 402 moves upwards to remove the limit on the oil discharge shell 5041, the oil discharge shell 5041 is pushed by the guide spring 5043 to stretch into the crude oil second transmission cavity 304, the inner side part of the oil discharge shell 5041 is matched with the inner side part of the chute 302, in the process that the unidirectional oil-gas conveying part 6 is opened, the buffer ring 402 and the buffer limit component push the gas inside the oil-gas transmission shell 3 and the gas at the upper part of the crude oil second transmission cavity 304, extrusion oil gas switch 605 moves down, oil gas switch 605 keeps away from with oil gas sealing ring 602, connecting spring 604 is stretched, after the motion power storage of crude oil thrust unit 5 and the spacing in-process of oneself, gaseous pushing oil drain sealing ring 502 moves down after passing one-way oil gas conveying unit 6, oil drain sealing ring 502 pushes the gaseous entering oil gas transmission casing 3 through oil drain casing 5041 of crude oil second transmission cavity 304 lower part inside, oil drain spring 503 is stretched, in the process that crude oil thrust unit 5 carries out the self-spacing, oil drain sealing ring 502 pushes two oil drain casings 5041 relative motion, when oil drain sealing ring 502 lower surface and oil drain casing 5041 lower surface parallel and level, oil drain casing 5041 probes into crude oil second transmission cavity 304 again, oil drain casing 5041 carries out spacing to oil drain sealing ring 502 this moment.
After the second clockwise rotation of the rotary switch 8 is completed for two circles, the first limit ring 205 is located below the upper surface of the oil-gas transmission housing 3, when the upper surface of the second limit ring 405 contacts the lower surface of the first limit ring 205, the buffer limit component stops moving upwards, at this time, the second limit ring 405 is located above the arc-shaped oil discharge groove 303, the buffer ring 402 continues moving upwards under the action of oil pressure, in the process of moving the buffer ring 402 upwards, the third limit spring 406 is compressed, the buffer ring 402 is dislocated with the buffer circular plate 408, under the limit of the slot 4082, the limit ball 4044 and the second limit rod 4043 collapse into the limit hole 4022, the limit ball 4044 gradually breaks away from the limit of the slot 4082, the second limit spring 4045 and the first limit spring 4042 are compressed, when the first limit rod 4041 moves to the same height as the limit hole 305, the first limit rod 4041 probes out of the limit hole 4022 under the push of the first limit spring 4042, the first limiting rod 4041 is matched with the limiting hole 305 to limit the buffering ring 402, when crude oil passes through the oil inlet buffering hole 4081, the arc-shaped bent part of the oil inlet buffering hole 4081 guides the crude oil to the inner surface of the oil-gas transmission housing 3, when a part of crude oil exists above the oil inlet buffering hole 4081, the part of crude oil can form a barrier to the subsequent crude oil passing through the oil inlet buffering hole 4081, the oil inlet speed is reduced, the impact force on the oil pressure gauge 7 is reduced, the crude oil passes through the buffering circular plate 408, continues to enter the upper part of the crude oil second transmission cavity 304 through the oil-gas sleeve 306 and the arc-shaped pipe 307, then enters the lower part of the crude oil second transmission cavity 304 through the one-way oil-gas conveying part 6, when the inside of the oil-gas transmission housing 3 and the crude oil second transmission cavity 304 are filled with oil-gas mixture, the oil pressure gauge 7 detects the oil pressure, during the detection, the oil pressure in the oil pipe fluctuates, when the oil pressure of the crude oil below the buffering circular plate 408 fluctuates, crude oil passes oil feed buffering hole 4081 at the in-process that gets into buffering plectane 408 top, because oil feed buffering hole 4081 is the arc structure for crude oil obtains the buffering when passing oil feed buffering hole 4081, and the pressure fluctuation that oil pressure gauge 7 received diminishes.
Example 3
On the basis of embodiment 2, when the oil pressure gauge 7 needs to be replaced, an operator firstly closes the oil pressure seat, the operator firstly rotates the rotary switch 8 counterclockwise for two turns, in the rotating process, because the buffer ring 402 is limited on the upper part of the oil-gas transmission housing 3 by the first limit rod 4041, the buffer ring 402, the fixed column 4024, the first limit rod 4041, the first limit spring 4042, the second limit rod 4043, the limit ball 4044 and the second limit spring 4045 move synchronously with the oil-gas transmission housing 3, the buffer limit component is tightly contacted with the second limit ring 405 under the elastic force of the third limit spring 406, the upward moving distance of the oil inlet part 2 and the buffer limit component is greater than the upward moving distance of the oil-gas transmission housing 3, in the upward moving process of the second limit ring 405, the third limit spring 406 gradually recovers, the buffer limit component moves upward relative to the buffer ring 402, after the two turns are completed before rotating the counterclockwise rotary switch 8, the oil inlet disc 204 is matched and sealed with the second sealing ring 301, and crude oil can not enter the oil-gas transmission shell 3 any more.
At the moment, an operator continues to rotate the rotary switch 8 anticlockwise, in the rotating process, the arc-shaped oil discharge groove 303 is communicated with the crude oil first transmission cavity 102, the operator observes that crude oil flows out from the L-shaped oil outlet pipeline and stops rotating the rotary switch 8, at the moment, the arc-shaped oil discharge groove 303 is communicated with the crude oil first transmission cavity 102, the crude oil above the buffering circular plate 408 and above the one-way oil-gas conveying component 6 flows into an oil storage tank through the L-shaped oil outlet pipeline, when the operator observes that no crude oil flows out from the L-shaped oil outlet pipeline, no crude oil exists above the buffering circular plate 408 and above the one-way oil-gas conveying component 6, in the closing process of the one-way oil-gas conveying component 6, the oil-gas switch 605 moves upwards to be matched with the oil-gas sealing ring 602 to form sealing, the oil pressure in the oil-gas transmission shell 3 is the same as the external atmospheric pressure, after the operator unloads the oil pressure gauge 7, the operator continues to rotate the rotary switch 8 anticlockwise for two turns, in the process of rotation, the limiting ball 4044 is moved inwards by the elastic force of the second limiting spring 4045, the limiting ball 4044 drives the first limiting spring 4042 and the first limiting rod 4041 to move inwards into the limiting hole 4022, the first limiting rod 4041 gradually releases the limitation on the buffer ring 402, when the lower surface of the buffer circular plate 408 is flush with the lower surface of the buffer ring 402, the buffer circular plate 408 and the buffer ring 402 form a seal by the cooperation of the limiting ball 4044 and the clamping groove 4082, during the oil discharge process of the buffer part 4, the buffer ring 402 is moved downwards by the elastic force of the buffer spring 403, the buffer ring 402 drives the buffer circular plate 408 to move downwards, the buffer ring 402 and the buffer circular plate 408 push the crude oil below the inside of the oil-gas transmission housing 3 to enter the crude oil second transmission cavity 304 through the oil discharge housing 5041, pass through the arc-shaped oil discharge groove 303 to enter the crude oil first transmission cavity 102, and be discharged into the oil storage tank through the L-shaped oil discharge pipeline, after the rotation switch 8 is rotated counterclockwise for two times, the upper surface of the oil inlet disc 204 is flush with the upper surface of the second sealing ring 301, in the process that the crude oil pushing part 5 releases self-limiting, the buffer ring 402 moves downwards to contact with the oil discharging shell 5041, the two oil discharging shells 5041 move relatively through the limiting groove 4021, the guide spring 5043 is gradually compressed, when the lower surface of the buffer ring 402 contacts with the upper surface of the oil inlet disc 204, the oil discharging shell 5041 releases limiting on the oil discharging sealing ring 502, the oil discharging sealing ring 502 moves upwards under the elastic force of the oil discharging spring 503, the oil discharging sealing ring 502 pushes the crude oil below the crude oil second transmission cavity 304 to be discharged into the oil storage tank, when the upper surface of the oil discharging sealing ring 502 contacts with the lower surface of the oil gas sealing ring 602, the oil discharging work is completed, and an operator continuously repeats the operation of opening the oil pressure seat after installing a new oil pressure gauge 7.
It should be understood that the above description is for exemplary purposes only and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention are intended to be included within the scope of the claims herein.