CN114235265B

CN114235265B - Oil field is with oil pressure seat that can install manometer fast

Info

Publication number: CN114235265B
Application number: CN202210164362.9A
Authority: CN
Inventors: 丁昔胜
Original assignee: Dongying Dinghong Petroleum Technology Development Co ltd
Current assignee: Daqing Huifeng Oil Science And Technology Development Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-04-29
Anticipated expiration: 2042-02-23
Also published as: CN114235265A

Abstract

The invention relates to the technical field of oilfield pipeline measurement, in particular to an oil pressure seat capable of being rapidly provided with a pressure gauge for an oilfield. The technical problem solved is as follows: the process operation of installing the oil pressure gauge is complex, and after the installation of the oil pressure gauge is completed, the sealing effect of the oil pressure gauge and the oil pressure seat is poor, and when the oil pressure gauge is replaced, residual pressure exists in the oil pressure seat. The oil pressure seat comprises an outer shell, an oil inlet pressure relief mechanism, a clamping limiting mechanism, a dismounting mechanism and the like, wherein the oil inlet pressure relief mechanism is arranged on the outer shell, the clamping limiting mechanism is arranged on the upper portion of the oil inlet pressure relief mechanism, and the dismounting mechanism is arranged on the lower portion of the clamping limiting mechanism. According to the oil pressure gauge mounting and dismounting device, the effect of eliminating residual pressure is realized through the oil inlet pressure relief mechanism, the effect of quick mounting is realized through the clamping and limiting mechanism, the operation process is simple, a better clamping effect is realized through the clamping and limiting mechanism and the clamping assembly, and the oil pressure gauge is dismounted through the matching of the clamping and limiting mechanism, the clamping assembly and the dismounting mechanism.

Description

Oil field is with oil pressure seat that can install manometer fast

Technical Field

The invention relates to the technical field of oilfield pipeline measurement, in particular to an oil pressure seat capable of being rapidly provided with a pressure gauge for an oilfield.

Background

In the oil extraction and crude oil transportation process, the oil pressure in an oil pipe needs to be detected, the equipment for detecting the oil pressure is an oil pressure gauge, an oil pressure seat is installed on the oil pipe, and the oil pressure gauge is installed on the oil pressure seat.

Traditional oil pressure gauge passes through the bolt fastening on the oil pressure seat, the bolt needs the symmetry to tighten up at the in-process of twisting the bolt, the operation process is loaded down with trivial details, and after having twisted first bolt, oil pressure gauge base atress is inhomogeneous, after having twisted subsequent bolt, the oil pressure gauge is poor with the sealed effect of oil pressure seat, crude oil can spill over, and when changing the oil pressure gauge, the oil pressure seat can have the overbalance pressure, the overbalance pressure not only influences the dismantlement of oil pressure gauge, still can pop out the oil pressure gauge when dismantling the oil pressure gauge and cause harm to oil workers's health, and in the oil pressure testing process, the oil pressure of petroleum pipeline appears undulant back, the oil pressure seat can not play the buffering to the oil pressure, the oil pressure will cause the harm to the oil pressure gauge.

Aiming at the technical problem, an oil pressure seat which has the function of eliminating residual pressure and can be used for rapidly installing a pressure gauge in an oil field is provided.

Disclosure of Invention

In order to overcome the defects that the operation of the process of installing the oil pressure gauge is complicated, the sealing effect of the oil pressure gauge and the oil pressure seat is poor after the oil pressure gauge is installed, and the excess pressure exists in the oil pressure seat when the oil pressure gauge is replaced, the technical problems to be solved by the invention are that: the oil pressure seat with the residual pressure eliminating function and capable of being rapidly provided with the pressure gauge is provided.

An oil pressure seat capable of quickly mounting a pressure gauge for an oil field comprises an outer shell, a limiting clamping block, an inner shell, an oil inlet pressure relief mechanism, a clamping limiting mechanism, a clamping assembly, a dismounting mechanism, the oil pressure gauge and a positioning block, wherein the oil pressure seat is connected with a pipeline through a flange, the outer shell is fixedly connected on the flange, the limiting clamping blocks are three along the circumferential direction of the outer shell, the three limiting clamping blocks are fixedly connected with the upper part of the outer shell respectively, the middle part of the inner surface of each limiting clamping block is provided with a first limiting clamping groove, the lower part of the outer shell is provided with a communicating hole, the inner shell is arranged in the outer shell and fixedly connected with the outer shell, the lower part of the right part of the inner shell is provided with an oil through hole, the oil inlet pressure relief mechanism is positioned at the right part of a cavity between the outer shell and the inner shell, the left side of the oil inlet pressure relief mechanism is fixedly connected with the inner shell and partially embedded into the inner shell, the oil inlet pressure relief mechanism controls the inlet and the outlet of crude oil and reduces the oil pressure in the oil pressure seat, chucking stop gear sets up inside the shell body, casing upper portion including chucking stop gear sets up, chucking stop gear rigid coupling is on shell body and oil feed pressure release mechanism, chucking stop gear is used for dismantling the chucking of fuel pressure gauge and supplementary fuel pressure gauge, chucking subassembly rigid coupling is on interior casing upper portion, the chucking subassembly is located chucking stop gear middle part, shell body right part rigid coupling has disassembly body, disassembly body is used for assisting the dismantlement of fuel pressure gauge, fuel pressure gauge base circumference evenly is provided with three locating piece, locating piece and first spacing draw-in groove sliding fit, three chucking groove has evenly been seted up to fuel pressure gauge base circumference.

Further, the oil inlet pressure relief mechanism comprises a pressure relief shell, a sealing snap ring, a communicating circular tube, a screw rod, a first bevel gear, a rotating sleeve, a second bevel gear, a one-way bearing, a first rotary switch, an oil inlet spring, a connecting plate, an oil inlet disc, an oil inlet block, a piston disc and a piston rod, wherein the pressure relief shell is fixedly connected in the outer shell, the left part of the pressure relief shell is embedded in the right part of the inner shell, the sealing snap ring is fixedly connected at the lower part in a cavity of the pressure relief shell, a circular through hole is formed in the middle of the sealing snap ring, the cavity of the pressure relief shell is divided into an upper part and a lower part by the sealing snap ring, an air vent is formed in the upper surface of the pressure relief shell, first guide grooves are symmetrically formed in the front and back direction in the inner surface of the pressure relief shell, the communicating circular tube is fixedly connected to the left part of the pressure relief shell, the screw rod is rotatably connected to the upper surface of the pressure relief shell, a threaded through hole is formed in the screw rod, the upper end of the screw rod is fixedly connected to the first bevel gear, and the right part of the outer shell is rotatably connected to the rotating sleeve, the rotating sleeve penetrates through the right part of the outer shell, a second bevel gear meshed with the first bevel gear is fixedly connected at the left end of the rotating sleeve, a one-way bearing is fixedly connected at the right end of the rotating sleeve, a first rotating switch is fixedly connected outside the one-way bearing, an oil inlet spring is fixedly connected on the lower surface inside the pressure relief shell, a connecting plate is fixedly connected at the upper end of the oil inlet spring, an oil inlet disc is fixedly connected at the left end of the connecting plate, a plurality of buffer holes are circumferentially formed in the lower part of the oil inlet disc and used for buffering the oil inlet speed of crude oil, blind holes communicated with the buffer holes are formed in the upper surface of the oil inlet disc in a downward mode, an oil inlet block is fixedly connected at the upper end of the connecting plate and is cylindrical, the oil inlet block is matched with the sealing snap ring, a piston disc is arranged in a sliding mode in an upper cavity of the pressure relief shell, lugs are symmetrically arranged in the front and at the back of the piston disc, the lugs of the piston disc are in sliding fit with a first guide groove of the pressure relief shell, and a piston rod is fixedly connected at the upper end of the piston disc, the upper part of the piston rod is provided with threads, and the upper part of the piston rod is matched with the threaded through hole of the screw rod.

Further, the clamping limiting mechanism comprises a connecting round rod, a first limiting ring, a clamping spring, a first arc-shaped guide plate, a T-shaped sliding block, an arc-shaped connecting block, a second arc-shaped guide plate, a connecting shaft, a supporting ring, a supporting rod and a clamping component, wherein two connecting round rods are symmetrically arranged inside the outer shell, the two connecting round rods are fixedly connected with the outer shell respectively, the connecting round rod is connected with the first limiting ring in a sliding manner, three cavities are uniformly formed in the first limiting ring in the circumferential direction, rectangular through holes communicated with the upper surface and the lower surface of the first limiting ring are formed in the three cavities of the first limiting ring, the connecting round rod is sleeved with the clamping spring, the upper end of the clamping spring is fixedly connected with the outer shell, the lower end of the clamping spring is fixedly connected with the upper surface of the first limiting ring, the first arc-shaped guide plates are uniformly arranged in the circumferential direction along the inner side of the first limiting ring, and the three first arc-shaped guide plates are fixedly connected with the first limiting ring respectively, first arc deflector both ends symmetry rigid coupling has T shape slider, first arc deflector upper surface middle part rigid coupling has the arc connecting block, arc connecting block upper end rigid coupling has second arc deflector, the rigid coupling has the connecting axle between two adjacent second arc deflectors, the support ring sets up on the screw rod, the support ring right part seted up with screw rod complex screw hole, the bracing piece evenly is provided with threely along support ring circumference, three bracing piece lower extreme respectively with support ring upper surface rigid coupling, it is provided with the chucking part to rotate on the connecting axle.

Further, the clamping part comprises a clamping block, a first limiting rod, a limiting post, a first limiting slide block, a releasing limiting rod, a limiting shell, a connecting block, a first limiting spring, a second limiting slide block, a second limiting spring and a trapezoidal block, the connecting shaft is rotatably connected with the clamping block, the inner side of the upper part of the clamping block is in an arc-shaped convex block shape, the inner side of the lower part of the clamping block is fixedly connected with the first limiting rod, the lower part of the first limiting rod is fixedly connected with two symmetrical limiting posts, the two limiting posts are respectively provided with the first limiting slide block, the lower part of the outer side of the first limiting slide block is fixedly connected with the releasing limiting rod, the releasing limiting rod is provided with a T-shaped groove, the first limiting ring is internally provided with a limiting shell in a sliding manner, the limiting shell is internally and symmetrically provided with two trapezoidal chutes and one square chute, the two trapezoidal chutes are respectively communicated with the adjacent square chutes, the two sides of the limiting shell are symmetrically provided with the connecting block, connect the rigid coupling between square and the first spacing ring and have first spacing spring, it is provided with two second spacing slider of symmetry to slide in the square spout, trapezoidal logical groove has been seted up from inside to outside to second spacing slider, be connected with the spacing spring of second between two second spacing slider, two trapezoidal pieces are a set of three groups that are provided with, two trapezoidal piece symmetries in a set of set up, three trapezoidal pieces of group set up along first spacing ring circumference, six trapezoidal pieces respectively with first spacing ring rigid coupling, trapezoidal piece and trapezoidal spout cooperation, trapezoidal piece and the logical groove cooperation of second spacing slider.

Further, the chucking subassembly is including chucking cover and chucking torsional spring, and interior casing upper portion rotates and is connected with the chucking cover, and chucking cover lower surface rigid coupling has the chucking torsional spring, and three chucking spout has evenly been seted up along chucking cover circumference to chucking torsional spring and interior casing surface rigid coupling, chucking cover rigid coupling, and three spacing hole has been seted up to chucking cover lower part, and spacing hole evenly sets up along chucking cover circumference.

Further, the dismounting mechanism comprises an L-shaped connecting rod, a friction block, a limiting sleeve, a sliding sleeve, a limiting hemisphere, a second rotary switch, a sliding rod, a first limiting triangular block, a limiting frame and an auxiliary dismounting component, the right side surface of the outer shell is fixedly connected with the L-shaped connecting rod, the upper part of the L-shaped connecting rod is provided with a rectangular groove, the rectangular groove of the L-shaped connecting rod is internally provided with the friction block in a sliding manner, an auxiliary friction spring is connected between the friction block and the L-shaped connecting rod, the upper part of the L-shaped connecting rod is rotatably provided with the limiting sleeve, a guide groove is formed in the limiting sleeve, the sliding sleeve is arranged in the limiting sleeve and is in sliding connection with the one-way bearing, the limiting sleeve is positioned at the right part of the sliding sleeve, the right part of the sliding sleeve is fixedly connected with the second rotary switch, the right part of the sliding sleeve is fixedly connected with the limiting hemisphere, the limiting hemisphere is in sliding fit with the guide groove of the limiting sleeve in a sliding manner, the sliding sleeve is rotatably provided with the sliding rod, the left part of the sliding rod is fixedly connected with the first limiting triangular block, the left part of the sliding rod is fixedly connected with a limiting frame, and the left part of the first limiting triangular block is provided with an auxiliary dismounting part.

Furthermore, supplementary dismantlement part is including the third gear, the ring gear, the second spacing ring, the second gag lever post, roll over shape connecting rod and the spacing three hornblocks of second, screw rod upper portion rigid coupling has the third gear, it is provided with the ring gear to rotate on the interior casing, ring gear and third gear engagement, the second gag lever post evenly is provided with threely along ring gear circumference, three second gag lever post respectively with ring gear rigid coupling, ring gear upper portion rotates and is provided with the second spacing ring, second spacing ring upper surface right side rigid coupling has the roll over shape connecting rod, roll over shape connecting rod right part lower surface rigid coupling has the spacing three hornblocks of second, the spacing three hornblocks of second and the extrusion fit of first spacing three hornblocks.

Further, still including seal assembly, be provided with seal assembly in the interior casing, seal assembly and oil feed disc rigid coupling, seal assembly is used for the sealed of oil pressure gauge pressure measurement in-process, seal assembly is including the arc connecting rod, the extrusion cover, corrosion-resistant rubber ring and sealing ring, arc connecting rod circumference is provided with threely, three arc connecting rod respectively with oil feed disc rigid coupling, arc connecting rod upper end rigid coupling has the extrusion cover, interior casing internal surface upper portion rigid coupling has the sealing ring, the extrusion cover, be provided with corrosion-resistant rubber ring between sealing ring and the oil pressure gauge.

Further, still including the buffering subassembly, be provided with the buffering subassembly in the interior casing, buffering subassembly and arc connecting rod rigid coupling, the buffering subassembly is arranged in reducing the oil pressure fluctuation of oil pressure gauge testing process, the buffering subassembly is including first disc, second disc and seal membrane, arc connecting rod lower part rigid coupling has first disc, sealed inlet port has been seted up at first disc middle part, interior casing internal surface lower part rigid coupling has the second disc, three oil feed through-hole has evenly been seted up to circumference on the second disc, second disc middle part rigid coupling has the seal membrane.

Further, seal membrane center department is the convex surface setting, and this convex surface is lower surface downwardly convex, and the upper surface undercut sets up, and the seal membrane periphery is the elastic material setting, and this convex surface sets up the diameter and is greater than oil feed disc blind hole diameter and sealed inlet port diameter.

The invention has the beneficial effects that: the invention reduces the pressure in the oil pressure seat through the oil inlet pressure relief mechanism, realizes the effect of eliminating residual pressure in the oil pressure seat, simultaneously reduces the working risk of an operator in the process of replacing the oil pressure gauge by the operator, rapidly clamps the oil pressure gauge through the clamping and limiting mechanism, realizes the effect of rapid installation, has simple operation process and is more convenient for the operator to use, realizes the clamping and locking of the oil pressure gauge through the matching of the clamping and limiting mechanism and the clamping assembly, realizes better clamping effect, detaches the oil pressure gauge through the matching of the clamping and limiting mechanism, the clamping assembly and the detaching mechanism, tightly seals the oil pressure gauge and the oil pressure seat through the sealing assembly, achieves the aim of preventing crude oil from overflowing, temporarily locks the oil pressure at the upper part of the buffer assembly when large fluctuation of the oil pressure in the oil pressure seat through the buffer assembly, and realizes the effect of eliminating the fluctuation of the oil pressure, reduce the damage of the oil pressure gauge.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a sectional view of the three-dimensional structure of the present invention in an open state.

Fig. 3 is a partial sectional view of the three-dimensional structure of the present invention in a closed state.

Fig. 4 is a sectional view showing a three-dimensional structure of the outer case and the inner case of the present invention.

FIG. 5 is a cross-sectional view of a three-dimensional structure of a hydraulic gauge according to the present invention.

Fig. 6 is a sectional view of a three-dimensional structure of the oil inlet pressure relief mechanism of the present invention.

Fig. 7 is a schematic perspective view of the chucking and spacing mechanism of the present invention.

Fig. 8 is a perspective sectional view of the chuck member of the present invention.

Fig. 9 is a schematic perspective view of the present invention at a.

Fig. 10 is a perspective sectional view of the chucking assembly of the present invention.

Fig. 11 is a sectional view showing a partial perspective structure of the detaching mechanism of the present invention.

Fig. 12 is a schematic perspective view of the present invention at B.

Fig. 13 is a perspective sectional view of an auxiliary clamping unit according to the present invention.

Fig. 14 is a partial cross-sectional view of a three-dimensional structure of the present invention.

FIG. 15 is a perspective view of a cushioning assembly according to the present invention.

In the above drawings: 1-outer shell, 101-limit clamping block, 1011-limit clamping groove, 102-communication hole, 2-inner shell, 201-oil through hole, 3-oil inlet pressure relief mechanism, 301-pressure relief shell, 3011-sealing clamping ring, 302-communication circular tube, 303-screw rod, 304-first bevel gear, 305-rotating sleeve, 306-second bevel gear, 307-one-way bearing, 308-first rotating switch, 309-oil inlet spring, 310-connecting plate, 311-oil inlet disc, 3111-buffer hole, 312-oil inlet block, 313-piston disc, 314-piston rod, 4-clamping limit mechanism, 401-connecting circular rod, 402-first limit ring, 403-clamping spring, 404-first arc guide plate, 4044-T-shaped sliding block, 405-arc connecting block, 406-second arc guide plate, 407-connecting shaft, 408-support ring, 409-support rod, 410-clamping block, 411-first limit rod, 412-limit column, 413-first limit slider, 414-release limit rod, 4144-T-shaped groove, 415-limit shell, 4155-trapezoidal sliding groove, 4154-square sliding groove, 416-connecting block, 417-first limit spring, 418-second limit slider, 419-second limit spring, 420-trapezoidal block, 5-clamping component, 501-clamping sleeve, 502-clamping torsion spring, 503-clamping sliding groove, 504-limit hole, 6-dismounting mechanism, 601-L-connecting rod, 6011-friction block, 602-limit sleeve, 6022-guide groove, 603-a sliding sleeve, 6033-a limiting hemisphere, 604-a second rotary switch, 605-a sliding rod, 6055-a first limiting triangular block, 606-a limiting frame, 607-a third gear, 608-a gear ring, 609-a second limiting rod, 610-a second limiting ring, 611-a zigzag connecting rod, 612-a second limiting triangular block, 7-a sealing component, 701-an arc connecting rod, 702-a pressing sleeve, 703-a corrosion-resistant rubber ring, 704-a sealing ring, 8-a buffering component, 801-a first disk, 8011-a sealing oil inlet hole, 802-a second disk, 8022-an oil inlet through hole, 803-a sealing membrane, 9-an oil pressure gauge, 901-a positioning block and 902-a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

An oil pressure seat capable of quickly installing a pressure gauge for an oil field is disclosed, as shown in fig. 1-5, and comprises an outer shell 1, a limiting clamping block 101, an inner shell 2, an oil inlet pressure relief mechanism 3, a clamping limiting mechanism 4, a clamping assembly 5, a dismounting mechanism 6, an oil pressure gauge 9 and a positioning block 901, wherein the oil pressure seat is connected with a pipeline through a flange, the outer shell 1 is fixedly connected on the flange, the limiting clamping blocks 101 are three along the circumference of the outer shell 1, the three limiting clamping blocks 101 are respectively fixedly connected with the upper part of the outer shell 1, the middle part of the inner surface of each limiting clamping block 101 is provided with a limiting clamping groove 1011, the lower part of the outer shell 1 is provided with a communication hole 102, the inner shell 2 is arranged inside the outer shell 1 and fixedly connected with the outer shell, the lower part of the right part of the inner shell 2 is provided with an oil through hole 201, the oil inlet pressure relief mechanism 3 is positioned at the right part of a cavity between the outer shell 1 and the inner shell 2, the right side of the oil inlet mechanism 3 is fixedly connected with the outer shell 1, the left side of an oil inlet pressure relief mechanism 3 is fixedly connected with an inner shell 2 and is partially embedded into the inner shell 2, the oil inlet pressure relief mechanism 3 is used for controlling the inlet and outlet of crude oil and reducing the oil pressure in an oil pressure seat, a clamping and limiting mechanism 4 is arranged inside an outer shell 1, the clamping and limiting mechanism 4 is arranged on the upper portion of the inner shell 2, the clamping and limiting mechanism 4 is fixedly connected on the outer shell 1 and the oil inlet pressure relief mechanism 3, the clamping and limiting mechanism 4 is used for disassembling a fuel pressure gauge 9 and assisting the clamping of the fuel pressure gauge 9, a clamping assembly 5 is fixedly connected on the upper portion of the inner shell 2, the clamping assembly 5 is positioned in the middle of the clamping and limiting mechanism 4, a disassembling mechanism 6 is fixedly connected on the right portion of the outer shell 1, the disassembling mechanism 6 is used for assisting the disassembling of the fuel pressure gauge 9, three positioning blocks 901 are uniformly arranged on the base of the fuel pressure gauge 9 in the circumferential direction, and the positioning blocks 901 are in sliding fit with a limiting clamping groove 1011, the guide and position calibration device is used for guiding and calibrating the installation process of the oil pressure gauge 9, and three clamping grooves 902 are uniformly formed in the circumferential direction of the base.

When the oil pressure seat is in an open state in the pressure measuring process, the oil pressure seat is communicated with an oil pipe, and an oil pressure gauge 9 needs to be replaced, an operator firstly operates the dismounting mechanism 6 to a dismounting state, then the operator operates the oil inlet pressure relief mechanism 3 to close the oil pressure seat, so that the oil pressure seat is not communicated with a crude oil pipeline, in the process of operating the oil inlet pressure relief mechanism 3, the oil inlet pressure relief mechanism 3 pumps crude oil in the oil pressure seat into the oil inlet pressure relief mechanism 3, so that the oil pressure in the oil pressure seat is reduced, the oil inlet pressure relief mechanism 3 is matched with the clamping limiting mechanism 4 and the clamping component 5, so that the clamping component 5 in the clamping state loses the clamping of the oil pressure gauge 9, the dismounting mechanism 6 is in a dismounting state, after the operation of the oil inlet pressure relief mechanism 3 is operated, the clamping limiting mechanism 4 is in an open state, the operator takes out the oil pressure gauge 9, and places a new oil pressure gauge 9 on the upper part of the outer shell 1, through locating piece 901 and spacing draw-in groove 1011's sliding fit, put into outer casing 1 with oil pressure gauge 9, in the in-process that oil pressure gauge 9 moved down, oil pressure gauge 9 can make and be in spacing chucking stop gear 4 and relieve spacingly gradually, when oil pressure gauge 9 and interior casing 2 upper surface contact, chucking stop gear 4's spacing is relieved, after chucking stop gear 4's spacing is relieved, chucking stop gear 4 and chucking subassembly 5 cooperation chucking groove 902 carry out the chucking to oil pressure gauge 9, operating personnel controls oil feed pressure release mechanism 3, impress the crude oil in the oil feed pressure release mechanism 3 in interior casing 2, the oil pressure seat is opened afterwards, oil pressure gauge 9 continues to measure the oil pressure.

Example 2

Based on embodiment 1, as shown in fig. 2, 3 and 6, the oil inlet pressure relief mechanism 3 includes a pressure relief housing 301, a sealing snap ring 3011, a communicating circular tube 302, a screw 303, a first bevel gear 304, a rotating sleeve 305, a second bevel gear 306, a one-way bearing 307, a first rotating switch 308, an oil inlet spring 309, a connecting plate 310, an oil inlet circular plate 311, an oil inlet block 312, a piston plate 313 and a piston rod 314, the pressure relief housing 301 is fixedly connected in an outer housing 1, the left portion of the pressure relief housing 301 is embedded in the right portion of an inner housing 2, the sealing snap ring 3011 is fixedly connected to the lower portion of the cavity of the pressure relief housing 301, a circular through hole is formed in the middle of the sealing snap ring 3011, the sealing snap ring 3011 divides the cavity of the pressure relief housing 301 into an upper portion and a lower portion, a vent hole is formed in the upper surface of the pressure relief housing 301, first guide grooves are symmetrically formed in the front and back of the inner surface of the pressure relief housing 301, the left portion of the pressure relief housing 301 is fixedly connected with the communicating circular through tube 302, the upper surface of the pressure relief shell 301 is rotatably connected with a screw 303, the interior of the screw 303 is a threaded through hole, the upper end of the screw 303 is fixedly connected with a first bevel gear 304, the right part of the outer shell 1 is rotatably connected with a rotating sleeve 305, the rotating sleeve 305 penetrates through the right part of the outer shell 1, the left end of the rotating sleeve 305 is fixedly connected with a second bevel gear 306 engaged with the first bevel gear 304, the right end of the rotating sleeve 305 is fixedly connected with a one-way bearing 307, the one-way bearing 307 is used for driving the dismounting mechanism 6 to stop working when the oil pressure seat is opened or closed, the outer side of the one-way bearing 307 is fixedly connected with a first rotating switch 308, the lower surface of the interior of the pressure relief shell 301 is fixedly connected with an oil inlet spring 309, the upper end of the oil inlet spring 309 is fixedly connected with a connecting plate 310, the left end of the connecting plate 310 is fixedly connected with an oil inlet disc 311, the lower part of the oil inlet disc 311 is circumferentially provided with a plurality of buffer holes 3111, the buffer holes 3111 are used for buffering the oil inlet speed of crude oil, the upper surface of the oil inlet disc 311 is downwards provided with blind holes 3111, an oil inlet block 312 is fixedly connected to the upper end of the connecting plate 310, the oil inlet block 312 is cylindrical, the oil inlet block 312 is matched with the sealing snap ring 3011, a piston disc 313 is arranged in a cavity in the upper portion of the pressure relief shell 301 in a sliding mode, protruding blocks are symmetrically arranged on the front and back of the piston disc 313, the protruding blocks of the piston disc 313 are in sliding fit with a first guide groove of the pressure relief shell 301 to limit and guide the piston disc 313 to move up and down, a piston rod 314 is fixedly connected to the upper end of the piston disc 313, threads are formed in the upper portion of the piston rod 314, and the upper portion of the piston rod 314 is matched with threaded through holes of the screw rods 303.

As shown in fig. 2, 3 and 7-9, the chucking limiting mechanism 4 includes a connecting round bar 401, a first limiting ring 402, a chucking spring 403, a first arc-shaped guiding plate 404, a T-shaped sliding block 4044, an arc-shaped connecting block 405, a second arc-shaped guiding plate 406, a connecting shaft 407, a supporting ring 408, a supporting rod 409 and chucking components, two connecting round bars 401 are symmetrically disposed inside the outer casing 1, the two connecting round bars 401 are respectively and fixedly connected with the outer casing 1, the connecting round bar 401 is slidably connected with the first limiting ring 402, three cavities are uniformly formed in the first limiting ring 402 in the circumferential direction, three cavities of the first limiting ring 402 are respectively provided with rectangular through holes communicated with the upper and lower surfaces thereof, the connecting round bar 401 is sleeved with the chucking spring 403, the upper end of the chucking spring 403 is fixedly connected with the outer casing 1, the lower end of the chucking spring 403 is fixedly connected with the upper surface of the first limiting ring 402, three first arc-shaped guiding plates 404 are uniformly arranged along the inner circumferential direction of the first limiting ring 402, three first arc deflector 404 respectively with first spacing ring 402 rigid coupling, the symmetry rigid coupling in first arc deflector 404 both ends has T shape slider 4044, first arc deflector 404 upper surface middle part rigid coupling has arc connecting block 405, arc connecting block 405 upper end rigid coupling has second arc deflector 406, the rigid coupling has connecting axle 407 between two adjacent second arc deflectors 406, support ring 408 sets up on screw rod 303, support ring 408 right part seted up with screw rod 303 complex screw hole, bracing piece 409 evenly is provided with threely along support ring 408 circumference, three bracing piece 409 lower extreme respectively with support ring 408 upper surface rigid coupling, it is provided with the chucking part to rotate on the connecting axle 407.

As shown in fig. 2, 3 and 7-9, the clamping member includes a clamping block 410, a first limit rod 411, a limit post 412, a first limit slide block 413, a release limit rod 414, a limit housing 415, a connection block 416, a first limit spring 417, a second limit slide block 418, a second limit spring 419 and a trapezoidal block 420, the connection shaft 407 is rotatably connected with the clamping block 410, the inner side of the upper portion of the clamping block 410 is an arc-shaped convex block, the clamping block 410 is matched with the clamping groove 902 for clamping the oil pressure seat, the inner side of the lower portion of the clamping block 410 is fixedly connected with the first limit rod 411, the lower portion of the first limit rod 411 is fixedly connected with two symmetrical limit posts 412, the two limit posts 412 are respectively provided with the first limit slide block 413, the outer lower portion of the first limit slide block 413 is fixedly connected with the release limit rod 414, the release limit rod 414 is provided with a T-shaped groove 4144, the limit housing 415 is slidably arranged in the first limit ring 402, two trapezoidal chutes 4155 and a square chute 4154 are symmetrically arranged in the limiting shell 415, the two trapezoidal chutes 4155 are respectively communicated with the square chute 4154, the two sides of the limiting shell 415 are symmetrically provided with connecting blocks 416, a first limiting spring 417 is fixedly connected between the connecting blocks 416 and the first limiting ring 402, two symmetrical second limiting sliders 418 are arranged in the square chute 4154 in a sliding manner, a trapezoidal through groove is formed in each second limiting slider 418 from inside to outside, a second limiting spring 419 is connected between the two second limiting sliders 418, two trapezoidal blocks 420 are provided with three groups in one group, the two trapezoidal blocks 420 in one group are symmetrically arranged, the three groups of trapezoidal blocks 420 are circumferentially arranged along the first limiting ring 402, the six trapezoidal blocks 420 are respectively and fixedly connected with the first limiting ring 402, the trapezoidal blocks 420 are matched with the trapezoidal chutes 4155, and the trapezoidal blocks 420 are matched with the through grooves of the second limiting sliders 418.

As shown in fig. 2, fig. 3 and fig. 10, the clamping assembly 5 includes a clamping sleeve 501 and a clamping torsion spring 502, the upper part of the inner housing 2 is rotatably connected with the clamping sleeve 501, the lower surface of the clamping sleeve 501 is fixedly connected with the clamping torsion spring 502, the clamping torsion spring 502 is fixedly connected with the outer surface of the inner housing 2, the clamping torsion spring 502 is used for clamping and assisting disassembly of the oil pressure gauge 9 during installation, three clamping chutes 503 are uniformly arranged along the circumferential direction of the clamping sleeve 501, three limiting holes 504 are arranged on the lower part of the clamping sleeve 501, and the limiting holes 504 are uniformly arranged along the circumferential direction of the clamping sleeve 501.

As shown in fig. 2, 3, 11 and 12, the detaching mechanism 6 includes an L-shaped connecting rod 601, a friction block 6011, a limiting sleeve 602, a sliding sleeve 603, a limiting hemisphere 6033, a second rotating switch 604, a sliding rod 605, a first limiting triangle block 6055, a limiting frame 606 and an auxiliary detaching component, the L-shaped connecting rod 601 is fixedly connected to the right side of the outer shell 1, a rectangular groove is formed on the upper portion of the L-shaped connecting rod 601, the friction block 6011 is slidably disposed in the rectangular groove of the L-shaped connecting rod 601, an auxiliary friction spring is connected between the friction block 6011 and the L-shaped connecting rod 601, the upper portion of the L-shaped connecting rod 601 is rotatably connected to the limiting sleeve 602, a spiral guide groove 6022 is formed in the limiting sleeve 602, a sliding sleeve 603 is disposed in the limiting sleeve 602, the sliding sleeve 603 is slidably connected to the one-way bearing 307, the first rotating switch 308 drives the sliding sleeve 603 to rotate counterclockwise through the one-way bearing 307 when rotating clockwise, the first rotating switch 308 cannot drive the sliding sleeve 603 to rotate clockwise through the one-way bearing 307, stop collar 602 is located the sliding sleeve 603 right part, sliding sleeve 603 right part rigid coupling has second rotary switch 604, sliding sleeve 603 right part rigid coupling has spacing hemisphere 6033, spacing hemisphere 6033 and stop collar 602's guide way 6022 sliding fit, the sliding sleeve 603 internal rotation is provided with slide bar 605, slide bar 605 left part rigid coupling has first spacing triangle piece 6055, slide bar 605 left part rigid coupling has spacing frame 606, first spacing triangle piece 6055 left part is provided with supplementary dismantlement part.

As shown in fig. 2, 3, 11 and 13, the auxiliary detaching component includes a third gear 607, a gear ring 608, a second limit ring 610, a second limit rod 609, a zigzag connecting rod 611 and a second limit triangular block 612, the third gear 607 is fixedly connected to the upper portion of the screw 303, the gear ring 608 is rotatably disposed on the inner housing 2, the gear ring 608 is engaged with the third gear 607, three second limit rods 609 are uniformly disposed along the circumferential direction of the gear ring 608, the three second limit rods 609 are respectively fixedly connected to the gear ring 608, the second limit ring 610 is rotatably disposed on the upper portion of the gear ring 608, the zigzag connecting rod 611 is fixedly connected to the right side of the upper surface of the second limit ring 610, the second limit triangular block 612 is fixedly connected to the right lower surface of the zigzag connecting rod 611, and the second limit triangular block 612 is in press fit with the first limit triangular block 6055.

When the oil pressure seat is in an open state during pressure measurement and the oil pressure gauge 9 needs to be replaced, an operator controls the dismounting mechanism 6 to a dismounting state, the dismounting mechanism 6 to the dismounting state is used for matching the clamping limiting mechanism 4 and the clamping assembly 5 to dismount the oil pressure gauge 9, the operator firstly pulls the second rotary switch 604 rightwards, the operator pulls the second rotary switch 604 and simultaneously rotates the second rotary switch 604 clockwise for one circle, the second rotary switch 604 drives the sliding sleeve 603 to move rightwards and simultaneously rotate clockwise for one circle, the sliding sleeve 603 drives the limiting hemisphere 6033 to move rightwards and simultaneously rotate clockwise for one circle, at the moment, the limiting hemisphere 6033 moves to the right part of the guide groove 6022 of the limiting sleeve 602, the sliding sleeve 603 drives the sliding rod rotationally connected with the sliding sleeve to move 605 rightwards, the sliding rod 605 drives the first limiting triangular block 6055 to move rightwards, and the second limiting triangular block 612 moves upwards under the extrusion of the first limiting triangular block 6055, the second limit triangular block 612 drives the fold connecting rod 611 to move upwards, the fold connecting rod 611 drives the second limit ring 610 to move upwards, the second limit ring 610 drives the gear ring 608 rotationally connected with the second limit ring 610 to move upwards, the gear ring 608 drives the second limit rod 609 to move upwards, the second limit rod 609 enters the limit hole 504, at this time, the dismounting mechanism 6 is in a dismounting state, an operator controls the oil inlet pressure relief mechanism 3 to close the oil pressure seat, the operator firstly rotates the first rotary switch 308 anticlockwise for one circle, the first rotary switch 308 drives the one-way bearing 307 to rotate anticlockwise for one circle, the one-way bearing 307 drives the rotary sleeve 305 to rotate anticlockwise for one circle, the rotary sleeve 305 drives the second bevel gear 306 to rotate anticlockwise for one circle, the second bevel gear 306 drives the first bevel gear 304 engaged with the second bevel gear 304 to rotate anticlockwise for one circle, the first bevel gear 304 drives the screw 303 to rotate anticlockwise for one circle, the screw 303 drives the piston rod 314 to move upwards, the piston rod 314 drives the piston disc 313 to move upwards, the piston disc 313 relieves the limitation on the oil inlet block 312, the connecting plate 310, the oil inlet disc 311 and the oil inlet block 312 move upwards under the pushing of the oil inlet spring 309, and the oil inlet disc 311 is in sealing fit with the outer shell 1 to close the oil pressure seat.

When an operator controls the oil inlet pressure relief mechanism 3 to close the oil pressure seat, the disassembly mechanism 6 is released, the clamping assembly 5 is released from clamping, the one-way bearing 307 drives the sliding sleeve 603 to rotate clockwise, at this time, the stop sleeve 602 cannot rotate under the extrusion of the friction block 6011, the sliding sleeve 603 drives the stop hemisphere 6033 to rotate, the stop hemisphere 6033 is driven by the stop of the guide groove 6022 to move the sliding sleeve 603 leftward, the sliding sleeve 603 drives the sliding rod 605 to move leftward, the sliding rod 605 drives the first stop triangle block 6055 to move leftward, the first stop triangle block 6055 drives the second stop triangle block 612 to move downward, the second stop triangle block 612 drives the folded connecting rod 611 to move downward, the folded connecting rod 611 drives the second stop ring 610 to move downward, the second stop ring 610 drives the gear ring 608 to move downward, the second stop rod 609 gradually releases the limit of the clamping sleeve 501, the screw 303 drives the third gear 607 to rotate counterclockwise for one turn, the third gear 607 drives the gear ring 608 engaged with the third gear to rotate clockwise, the gear ring 608 drives the second position-limiting rod 609 to rotate clockwise, the second position-limiting rod 609 drives the clamping sleeve 501 to rotate clockwise in the process of releasing the clamping of the clamping assembly 5, the clamping torsion spring 502 starts to accumulate force, the clamping sleeve 501 cooperates with the first position-limiting rod 411 through the clamping chute 503 to drive the clamping block 410 to move upwards, the clamping block 410 gradually releases the clamping on the oil pressure gauge 9, at this time, the dismounting mechanism 6 is in the dismounting state, the screw 303 rotates counterclockwise to drive the support ring 408 to move upwards, the support ring 408 drives the support rod 409 to move upwards, in the process of rotating the first rotary switch 308 counterclockwise for one turn, the gear ring 608 moves downwards while rotating clockwise, when the first rotary switch 308 rotates counterclockwise for one turn, the limiting hemisphere 6033 is positioned at the left part of the guide groove 6022, the first limiting rod 411 is positioned at the turning part of the clamping sliding groove 503, the supporting rod 409 is contacted with the lower surface of the limiting shell 415, and the second limiting rod 609 relieves the limiting of the clamping sleeve 501.

Then an operator controls the oil inlet pressure relief mechanism 3 to relieve pressure, the operator continues to rotate the first rotary switch 308 three times counterclockwise, the piston disc 313 moves upward to enable negative pressure to be formed in the pressure relief shell 301, the negative pressure pumps crude oil in the inner shell 2 into the pressure relief shell 301, oil pressure in the inner shell 2 is reduced, and an effect of eliminating residual pressure is achieved, the clamping limiting mechanism 4 releases clamping on the oil pressure gauge 9 in the process that the operator controls the oil inlet pressure relief mechanism 3 to relieve pressure, the support ring 408 continues to push the support rod 409 to move upward, the clamping sleeve 501 is matched with the clamping chute 503 to push the clamping part upward under the torsion of the clamping torsion spring 502, the support rod 409 pushes the first limiting ring 402, the clamping spring 403, the first arc-shaped guide plate 404, the T-shaped sliding block 4044, the arc-shaped connecting block 405, the second arc-shaped guide plate 406, the connecting shaft 407 and the clamping part to move upward, and the clamping spring 403 is compressed, at this time, the clamping limiting mechanism 4 releases the clamping of the oil pressure gauge 9, in the process that an operator controls the oil inlet pressure relief mechanism 3 to relieve the pressure, because the rotating torque force of the first rotary switch 308 is greater than the friction force of the friction block 6011 on the limiting sleeve 602, when the first rotary switch 308 drives the sliding sleeve 603 to rotate counterclockwise, the limiting sleeve 602 rotates counterclockwise, when the first rotary switch 308 rotates counterclockwise for three circles, the gear ring 608 rotates by one hundred twenty degrees, the first limiting ring 402 is located above the inner housing 2, at this time, the oil inlet pressure relief mechanism 3 relieves the pressure, before the operator takes out the oil pressure gauge 9, the clamping part is not in an open state, in the process that the operator takes out the oil pressure gauge 9, the lower part of the clamping block 410 moves inwards, the upper part of the clamping block 410 moves outwards, the lower part of the clamping block 410 drives the limiting column 412 to move inwards, the limiting column 412 drives the first limiting slide block 413 to move outwards, the first limit slider 413 drives the limit releasing rod 414 to move outwards, when an operator takes out the oil pressure gauge 9 upwards, the clamping component is opened, the limit releasing rod 414 releases the limit on the second limit slider 418, and the second limit slider 418 extends out of the limit housing 415 under the action of the second limit spring 419.

An operator places a new oil pressure gauge 9 on the upper part of the outer shell 1, the oil pressure gauge 9 moves downwards along the limiting clamping groove 1011, in the process of downward movement of the oil pressure gauge 9, the clamping part is gradually closed, the upper part of the clamping block 410 moves inwards, the lower part of the clamping block 410 moves outwards, the lower part of the clamping block 410 drives the limiting column 412, the first limiting slide block 413 and the limiting rod 414 to move outwards, the limiting rod 414 is released to push the second limiting slide block 418 to move outwards, the second limiting slide block 418 drives the limiting shell 415 to move outwards, the limiting shell 415 drives the connecting block 416 to move outwards, the first limiting spring 417 is stretched, when the second limiting slide block 418 contacts with the trapezoidal block 420, the second limiting slide block 418 moves relatively through the matching of the trapezoidal through groove of the second limiting slide block 418 and the trapezoidal sliding groove 4155, the clamping part is closed, at the moment, the limiting rod 414 is released from limiting to the limiting shell 415, after the lower surface of the limiting shell 415 is not matched with the upper surface of the supporting rod 409, the first limiting ring 402 moves downwards under the action of the elastic force of the clamping spring 403, the supporting rod 409 penetrates through the rectangular through hole of the first limiting ring 402, the limiting shell 415 of the first limiting ring 402 is tightly attached to the supporting rod 409 under the pulling force of the first limiting spring 417, after the clamping part is closed, the clamping limiting mechanism 4 and the clamping assembly 5 are matched to clamp the oil pressure gauge 9, the first limiting rod 411 moves downwards along the clamping chute 503, when the first limiting rod 411 passes through the upper part of the clamping chute 503, the clamping sleeve 501 rotates clockwise through the matching of the first limiting rod 411 and the clamping chute 503, the clamping sleeve 501 drives the clamping torsion spring 502 to store force, when the first limiting rod 411 moves downwards through the turning part of the clamping chute, the clamping torsion spring 502 drives the clamping sleeve 501 to rotate, the clamping chute 503 is matched with the first limiting rod 411 to enable the clamping block 410 to clamp the oil pressure gauge 9, better chucking is carried out to oil pressure gauge 9 through chucking spring 403 and chucking torsional spring 502's cooperation, and when first gag lever post 411 reachd chucking spout 503 bottom, chucking stop gear 4 and chucking subassembly 5 accomplish the chucking to oil pressure gauge 9, then operating personnel controls oil feed pressure relief mechanism 3 and opens the oil pressure seat.

An operator rotates the first rotary switch 308 clockwise for four turns, the first rotary switch 308 drives the one-way bearing 307 to rotate clockwise for four turns, the one-way bearing 307 drives the rotary sleeve 305 to rotate clockwise for four turns, the rotary sleeve 305 drives the second bevel gear 306 to rotate clockwise for four turns, the second bevel gear 306 drives the first bevel gear 304 to rotate clockwise for four turns, the first bevel gear 304 drives the screw 303 to rotate clockwise for four turns, the screw 303 drives the piston rod 314 to move downwards, the piston rod 314 drives the piston disc 313 to move downwards, the piston disc 313 presses crude oil in the pressure relief shell 301, the inner shell 2 is internally provided, when the piston disc 313 contacts with the oil inlet disc 312 to press downwards, the oil inlet disc 312 drives the connecting plate 310 and the oil inlet disc 311 to move downwards, the screw 303 drives the support ring 408 to move downwards, the support ring 408 drives the support rod 409 to move downwards, when the clockwise rotation of the first rotary switch 308 is completed for four turns, the support rod 409 is located below the first limit ring 402, the oil pressure seat is opened, and the oil pressure gauge 9 measures the oil pressure in the oil pressure seat.

Example 3

On the basis of embodiment 2, as shown in fig. 2, fig. 3 and fig. 14, the sealing device further includes a sealing component 7, a sealing component 7 is arranged in the inner housing 2, the sealing component 7 is fixedly connected with the oil inlet disc 311, the sealing component 7 is used for sealing in the pressure measuring process of the oil pressure gauge 9, the sealing component 7 includes an arc connecting rod 701, a pressing sleeve 702, a corrosion-resistant rubber ring 703 and a sealing ring 704, the arc connecting rod 701 is circumferentially provided with three parts, the three arc connecting rods 701 are respectively fixedly connected with the oil inlet disc 311, the upper end of the arc connecting rod 701 is fixedly connected with the pressing sleeve 702, the upper part of the inner surface of the inner housing 2 is fixedly connected with the sealing ring 704, the pressing sleeve 702, the corrosion-resistant rubber ring 703 is arranged between the sealing ring 704 and the oil pressure gauge 9, the sealing ring 704 and the pressing sleeve 702 are used for pressing the corrosion-resistant rubber ring 703 in a matching manner, and a better sealing effect is achieved.

As shown in fig. 2, 3 and 15, the oil pressure meter further comprises a buffer assembly 8, the buffer assembly 8 is disposed in the inner housing 2, the buffer assembly 8 is fixedly connected to the arc connecting rod 701, the buffer assembly 8 is used for reducing oil pressure fluctuation during the detection process of the oil pressure meter 9, the buffer assembly 8 comprises a first disk 801, a second disk 802 and a sealing membrane 803, the first disk 801 is fixedly connected to the lower portion of the arc connecting rod 701, a sealing oil inlet hole 8011 is formed in the middle of the first disk 801, the second disk 802 is fixedly connected to the lower portion of the inner surface of the inner housing 2, three oil inlet through holes 8022 are uniformly formed in the second disk 802 in the circumferential direction, the sealing membrane 803 is fixedly connected to the middle portion of the second disk 802, the sealing membrane 803 is provided with a convex surface in the center, the convex surface is convex downward in the lower surface, the upper surface is concave in the lower surface, the periphery of the sealing membrane 803 is provided with an elastic material, and the diameter of the convex surface is larger than the diameter of the oil inlet disk 311 and the diameter of the sealing oil inlet hole 8011, when oil pressure fluctuation occurs to crude oil, the lower surface of the sealing film 803 is subjected to larger impact force of the crude oil, and the sealing film 803 protrudes upwards to be better attached to the sealing oil inlet 8011.

When the oil pressure gauge 9 needs to be replaced, an operator operates the sealing assembly 7 to remove sealing, the operator rotates the first rotary switch 308 anticlockwise for four circles, in the rotating process, the oil inlet disc 311 drives the arc-shaped connecting rod 701 to move upwards, the arc-shaped connecting rod 701 drives the extrusion sleeve 702 to move upwards, the corrosion-resistant rubber ring 703 is gradually expanded under the matching of the extrusion sleeve 702 and the sealing ring 704, the sealing of the sealing assembly 7 is removed, when the oil pressure gauge 9 is replaced, the operator operates the sealing assembly 7 to seal, the operator rotates the first rotary switch 308 clockwise for four circles, in the rotating process, the oil inlet disc 311 drives the arc-shaped connecting rod 701 to move downwards, the arc-shaped connecting rod 701 drives the extrusion sleeve 702 to move downwards, the extrusion sleeve 702 and the sealing ring 704 are matched to extrude the corrosion-resistant rubber ring 703, the oil pressure gauge 9 and the sealing ring 704 are attached to increase, a better seal is achieved. When the oil pressure gauge 9 needs to be replaced, an operator controls the buffer assembly 8 to be closed, the operator rotates the first rotary switch 308 counterclockwise for four circles, in the rotating process, the arc-shaped connecting rod 701 drives the first disc 801 to move upwards, the first disc 801 is far away from the second disc 802, the buffer is opened by the assembly, when the oil pressure gauge 9 is replaced, the operator controls the buffer assembly 8 to be opened, the operator rotates the first rotary switch 308 clockwise for four circles, in the rotating process, the arc-shaped connecting rod 701 drives the first disc 801 to move downwards, the first disc 801 is close to the second disc 802, in the detecting process of the oil pressure gauge 9, when large fluctuation of oil in an oil pipe occurs, the sealing membrane 803 is impacted by crude oil, the upper surface protrudes upwards, the lower surface recesses upwards, the upper surface of the sealing membrane 803 is tightly attached to the sealing oil inlet 8011, so that the oil pressure above the sealing membrane 803 is temporarily locked, the protection to the oil pressure gauge 9 is realized, when the large fluctuation of the oil pressure in the oil pipe disappears, the sealing film 803 is recovered, when the oil pressure in the oil pipe fluctuates for a plurality of times, the sealing film 803 protrudes upwards and resets for a plurality of times, the elastic material of the sealing film 803 reduces the deformation and abrasion of the sealing film during the movement, the service life of the sealing film 803 is prolonged, and the sealing film 803 made of the elastic material is more sensitive to the strain response when the oil pressure changes.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. The utility model provides an oil field is with oil pressure seat that can install manometer fast, including shell body (1), spacing fixture block (101), interior casing (2), oil pressure meter (9) and locating piece (901), characterized by: the oil pressure device is characterized by further comprising an oil inlet pressure relief mechanism (3), a clamping limiting mechanism (4), a clamping assembly (5) and a dismounting mechanism (6), wherein the oil pressure seat is connected with a pipeline through a flange, the outer shell (1) is fixedly connected onto the flange, three limiting clamping blocks (101) are arranged along the circumferential direction of the outer shell (1), the three limiting clamping blocks (101) are fixedly connected with the upper portion of the outer shell (1) respectively, a first limiting clamping groove (1011) is formed in the middle of the inner surface of each limiting clamping block (101), a communicating hole (102) is formed in the lower portion of the outer shell (1), the inner shell (2) is arranged inside the outer shell (1) and fixedly connected with the outer shell, an oil through hole (201) is formed in the lower portion of the right portion of the inner shell (2), the oil inlet pressure relief mechanism (3) is located in the right portion of a cavity between the outer shell (1) and the inner shell (2), the right side of the oil inlet pressure relief mechanism (3) is fixedly connected with the outer shell (1), the left side of the oil inlet pressure relief mechanism (3) is fixedly connected with the inner shell (2) and partially embedded into the inner shell (2), the oil inlet pressure relief mechanism (3) controls the inlet and outlet of crude oil and reduces the oil pressure in an oil pressure seat, the clamping limiting mechanism (4) is arranged inside the outer shell (1), the clamping limiting mechanism (4) is arranged on the upper portion of the inner shell (2), the clamping limiting mechanism (4) is fixedly connected to the outer shell (1) and the oil inlet pressure relief mechanism (3), the clamping limiting mechanism (4) is used for disassembling or clamping an oil pressure gauge (9), the clamping assembly (5) is fixedly connected to the upper portion of the inner shell (2), the clamping assembly (5) is located in the middle of the clamping limiting mechanism (4), the right portion of the outer shell (1) is fixedly connected with a disassembling mechanism (6), the disassembling mechanism (6) is used for assisting in disassembling the oil pressure gauge (9), three positioning blocks (901) are uniformly arranged on the base of the oil pressure gauge (9) in the circumferential direction, the positioning blocks (901) are in sliding fit with a first limiting clamping groove (1011), and three clamping grooves (902) are uniformly arranged on the base of the oil pressure gauge (9) in the circumferential direction;

the oil inlet pressure relief mechanism (3) comprises a pressure relief shell (301), a sealing snap ring (3011), a communicating circular tube (302), a screw rod (303), a first bevel gear (304), a rotating sleeve (305), a second bevel gear (306), a one-way bearing (307), a first rotating switch (308), an oil inlet spring (309), a connecting plate (310), an oil inlet disc (311), an oil inlet block (312), a piston disc (313) and a piston rod (314), wherein the pressure relief shell (301) is fixedly connected in the outer shell (1), the left part of the pressure relief shell (301) is embedded in the right part of the inner shell (2), the sealing snap ring (3011) is fixedly connected at the lower part in the cavity of the pressure relief shell (301), a circular through hole is formed in the middle part of the sealing snap ring (3011), the cavity of the pressure relief shell (301) is divided into an upper part and a lower part by the sealing snap ring (3011), a vent hole is formed in the upper surface of the pressure relief shell (301), first guide grooves are symmetrically formed in the front and back of the inner surface of the pressure relief shell (301), a communicating circular pipe (302) is fixedly connected to the left part of a pressure relief shell (301), a screw rod (303) is rotatably connected to the upper surface of the pressure relief shell (301), a threaded through hole is formed in the screw rod (303), a first bevel gear (304) is fixedly connected to the upper end of the screw rod (303), a rotating sleeve (305) is rotatably connected to the right part of an outer shell (1), the rotating sleeve (305) penetrates through the right part of the outer shell (1), a second bevel gear (306) meshed with the first bevel gear (304) is fixedly connected to the left end of the rotating sleeve (305), a one-way bearing (307) is fixedly connected to the right end of the rotating sleeve (305), a first rotating switch (308) is fixedly connected to the outer side of the one-way bearing (307), an oil inlet spring (309) is fixedly connected to the inner lower surface of the pressure relief shell (301), a connecting plate (310) is fixedly connected to the upper end of the oil inlet spring (309), an oil inlet disk (311) is fixedly connected to the left end of the connecting plate (310), a plurality of buffer holes (3111) are circumferentially formed in the lower part of the oil inlet disk (311), the buffer hole (3111) is used for buffering the oil inlet speed of crude oil, a blind hole communicated with the buffer hole (3111) is formed in the oil inlet disc (311) from the upper surface downwards, an oil inlet block (312) is fixedly connected to the upper end of the connecting plate (310), the oil inlet block (312) is cylindrical, the oil inlet block (312) is matched with the sealing snap ring (3011), a piston disc (313) is arranged in the upper cavity of the pressure relief shell (301) in a sliding mode, protruding blocks are symmetrically arranged on the front and back of the piston disc (313), the protruding blocks of the piston disc (313) are in sliding fit with the first guide groove of the pressure relief shell (301), a piston rod (314) is fixedly connected to the upper end of the piston disc (313), threads are formed in the upper portion of the piston rod (314), and the upper portion of the piston rod (314) is matched with a threaded through hole of the screw rod (303);

the clamping limiting mechanism (4) comprises a connecting round rod (401), a first limiting ring (402), a clamping spring (403), a first arc-shaped guide plate (404), a T-shaped sliding block (4044), an arc-shaped connecting block (405), a second arc-shaped guide plate (406), a connecting shaft (407), a supporting ring (408), a supporting rod (409) and a clamping component, wherein two connecting round rods (401) are symmetrically arranged inside the outer shell (1), the two connecting round rods (401) are respectively and fixedly connected with the outer shell (1), the connecting round rod (401) is slidably connected with the first limiting ring (402), three cavities are uniformly formed in the first limiting ring (402) in the circumferential direction, rectangular through holes communicated with the upper surface and the lower surface of the first limiting ring (402) are formed in the three cavities, the clamping spring (403) is sleeved on the connecting round rod (401), the upper end of the clamping spring (403) is fixedly connected with the outer shell (1), the lower end of a clamping spring (403) is fixedly connected with the upper surface of a first limiting ring (402), three first arc-shaped guide plates (404) are uniformly arranged along the inner side circumference of the first limiting ring (402), the three first arc-shaped guide plates (404) are respectively and fixedly connected with the first limiting ring (402), T-shaped sliding blocks (4044) are symmetrically and fixedly connected with the two ends of the first arc-shaped guide plates (404), an arc-shaped connecting block (405) is fixedly connected with the middle part of the upper surface of the first arc-shaped guide plate (404), the upper end of the arc-shaped connecting block (405) is fixedly connected with a second arc-shaped guide plate (406), a connecting shaft (407) is fixedly connected between two adjacent second arc-shaped guide plates (406), a supporting ring (408) is arranged on a screw rod (303), the right part of the supporting ring (408) is provided with a threaded hole matched with the screw rod (303), three supporting rods (409) are uniformly arranged along the circumference of the supporting ring (408), the lower ends of the three supporting rods (409) are respectively and fixedly connected with the upper surface of the supporting ring (408), a clamping component is rotatably arranged on the connecting shaft (407);

the clamping component comprises a clamping block (410), a first limiting rod (411), limiting columns (412), a first limiting slide block (413), a limit releasing rod (414), a limiting shell (415), a connecting block (416), a first limiting spring (417), a second limiting slide block (418), a second limiting spring (419) and a trapezoidal block (420), the connecting shaft (407) is rotatably connected with the clamping block (410), the inner side of the upper part of the clamping block (410) is in an arc convex block shape, the inner side of the lower part of the clamping block (410) is fixedly connected with a first limiting rod (411), the lower part of the first limiting rod (411) is fixedly connected with two symmetrical limiting columns (412), the two limiting columns (412) are respectively provided with a first limiting slide block (413), the lower part of the outer side of the first limiting slide block (413) is fixedly connected with a limit releasing rod (414), the limit releasing rod (414) is provided with a T-shaped groove (4144), the limiting shell (415) is arranged in the first limiting ring (402) in a sliding manner, two trapezoidal sliding grooves (4155) and a square sliding groove (4154) are symmetrically formed in the limiting shell (415), the two trapezoidal sliding grooves (4155) are respectively communicated with the adjacent square sliding grooves (4154), connecting blocks (416) are symmetrically arranged on two sides of the limiting shell (415), a first limiting spring (417) is fixedly connected between each connecting block (416) and the first limiting ring (402), two symmetrical second limiting sliding blocks (418) are arranged in each square sliding groove (4154) in a sliding mode, a trapezoidal through groove is formed in each second limiting sliding block (418) from inside to outside, a second limiting spring (419) is connected between the two second limiting sliding blocks (418), two trapezoidal blocks (420) are arranged in a group, the two trapezoidal blocks (420) in the group are symmetrically arranged, the three trapezoidal blocks (420) are circumferentially arranged along the first limiting ring (402), the six trapezoidal blocks (420) are respectively and fixedly connected with the first limiting ring (402), the trapezoidal block (420) is matched with the trapezoidal sliding groove (4155), and the trapezoidal block (420) is matched with the through groove of the second limiting sliding block (418);

the clamping assembly (5) comprises a clamping sleeve (501) and a clamping torsion spring (502), the upper part of the inner shell (2) is rotatably connected with the clamping sleeve (501), the lower surface of the clamping sleeve (501) is fixedly connected with the clamping torsion spring (502), the clamping torsion spring (502) is fixedly connected with the outer surface of the inner shell (2), three clamping sliding grooves (503) are uniformly formed in the circumferential direction of the clamping sleeve (501), three limiting holes (504) are formed in the lower part of the clamping sleeve (501), and the limiting holes (504) are uniformly formed in the circumferential direction of the clamping sleeve (501);

the disassembly mechanism (6) comprises an L-shaped connecting rod (601), a friction block (6011), a limiting sleeve (602), a sliding sleeve (603), a limiting hemisphere (6033), a second rotary switch (604), a sliding rod (605), a first limiting triangular block (6055), a limiting frame (606) and an auxiliary disassembly component, wherein the L-shaped connecting rod (601) is fixedly connected to the right side face of the outer shell (1), a rectangular groove is formed in the upper portion of the L-shaped connecting rod (601), the friction block (6011) is arranged in the rectangular groove of the L-shaped connecting rod (601) in a sliding mode, an auxiliary friction spring is connected between the friction block (6011) and the L-shaped connecting rod (601), the limiting sleeve (602) is rotatably arranged on the upper portion of the L-shaped connecting rod (601), a guide groove (6022) is formed in the limiting sleeve (602), a sliding sleeve (603) is arranged in the limiting sleeve (602), the sliding sleeve (603) is connected with a one-way bearing (307) in a sliding mode, and is located on the right portion of the sliding sleeve (603), sliding sleeve (603) right part rigid coupling has second rotary switch (604), sliding sleeve (603) right part rigid coupling has spacing hemisphere (6033), spacing hemisphere (6033) and guide way (6022) sliding fit of stop collar (602), sliding sleeve (603) internal rotation is provided with slide bar (605), slide bar (605) left part rigid coupling has first spacing three hornblocks (6055), slide bar (605) left part rigid coupling has spacing frame (606), first spacing three hornblocks (6055) left part is provided with supplementary dismantlement part.

2. The oil pressure seat capable of being rapidly provided with the pressure gauge for the oil field according to claim 1 is characterized in that: the auxiliary disassembly part comprises a third gear (607), a gear ring (608), a second limit ring (610), a second limit rod (609), a fold-shaped connecting rod (611) and a second limit triangular block (612), the upper portion of the screw rod (303) is fixedly connected with a third gear (607), the inner shell (2) is provided with a gear ring (608) in a rotating mode, the gear ring (608) is meshed with the third gear (607), the second limiting rod (609) is uniformly provided with three second limiting rods along the circumferential direction of the gear ring (608), the three second limiting rods (609) are fixedly connected with the gear ring (608) respectively, the upper portion of the gear ring (608) is rotatably provided with a second limiting ring (610), the right side of the upper surface of the second limiting ring (610) is fixedly connected with a folded connecting rod (611), the lower surface of the right portion of the folded connecting rod (611) is fixedly connected with a second limiting triangular block (612), and the second limiting triangular block (612) is in extrusion fit with the first limiting triangular block (6055).

3. The oil pressure seat capable of being rapidly provided with the pressure gauge for the oil field as claimed in claim 2, is characterized in that: still including sealing component (7), be provided with sealing component (7) in interior casing (2), sealing component (7) and oil feed disc (311) rigid coupling, sealing component (7) are used for the sealed of oil pressure gauge (9) pressure measurement in-process, sealing component (7) are including arc connecting rod (701), extrusion cover (702), corrosion resistant rubber ring (703) and sealing ring (704), arc connecting rod (701) circumference is provided with threely, three arc connecting rod (701) respectively with oil feed disc (311) rigid coupling, arc connecting rod (701) upper end rigid coupling has extrusion cover (702), interior casing (2) internal surface upper portion rigid coupling has sealing ring (704), extrusion cover (702), be provided with corrosion resistant rubber ring (703) between sealing ring (704) and oil pressure gauge (9).

4. The oil pressure seat capable of being rapidly provided with the pressure gauge for the oil field as claimed in claim 3, is characterized in that: still including buffering subassembly (8), be provided with buffering subassembly (8) in interior casing (2), buffering subassembly (8) and arc connecting rod (701) rigid coupling, buffering subassembly (8) are used for reducing the oil pressure fluctuation of oil pressure gauge (9) testing process, buffering subassembly (8) are including first disc (801), second disc (802) and seal membrane (803), arc connecting rod (701) lower part rigid coupling has first disc (801), sealed inlet port (8011) have been seted up at first disc (801) middle part, interior casing (2) internal surface lower part rigid coupling has second disc (802), three oil feed through-hole (8022) have evenly been seted up to circumference on second disc (802), second disc (802) middle part rigid coupling has seal membrane (803).

5. The oil pressure seat capable of being rapidly provided with the pressure gauge for the oil field as claimed in claim 4, is characterized in that: the center of the sealing membrane (803) is provided with a convex surface, the convex surface is a downward convex lower surface, the upper surface is downward concave, the periphery of the sealing membrane (803) is provided with an elastic material, and the diameter of the convex surface is larger than that of the blind hole of the oil inlet disc (311) and that of the sealing oil inlet hole (8011).