Backflow prevention device for petroleum machinery

Abstract

The utility model relates to the technical field of petroleum backflow prevention, and discloses a backflow prevention device for petroleum machinery, which comprises a liquid inlet pipe, the right side of the liquid inlet pipe is fixedly connected with an adjusting box, the right side of the adjusting box is fixedly connected with a liquid outlet pipe, and an adjusting backflow prevention mechanism is arranged in the adjusting box. An auxiliary mounting mechanism is arranged outside the liquid inlet pipe, in the using process, a motor works, a two-way threaded rod rotates, the angle of a flow guide plate is conveniently adjusted, and therefore the flow of petroleum entering the adjusting box is adjusted, and the flow of petroleum entering the adjusting box is adjusted through rotation of a first bevel gear and cooperation of a second bevel gear. The relative position of a connecting ring and a connecting column is conveniently adjusted, so that the elastic force of a first spring is adjusted, different backflow prevention requirements are met, and the position of a clamping block is conveniently adjusted through movement of a sliding plate, so that the position of a limiting bolt is limited; therefore, the limiting bolt is prevented from loosening due to unexpected conditions such as vibration in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum anti -backflow technical field, concretely is a kind of anti -backflow device for petroleum machinery. BACKGROUND

[0002] Petroleum is a viscous, dark brown liquid, crust upper part area has petroleum storage, in the exploitation process of petroleum, need to prevent backflow device to avoid oil liquid from the oil liquid of total machine backflow to oil well mouth, to ensure oil production efficiency in turn.

[0003] According to the anti -backflow device for petroleum machinery described in the patent network (grant announcement number: CN 219242717 U) in the "the utility model relates to petroleum anti -backflow device technical field, and discloses an anti -backflow device for petroleum machinery, including oil inlet pipe, the right end of oil inlet pipe is fixedly connected with connecting part, the right side of connecting part is fixedly connected with oil outlet section, the top of connecting part is fixedly installed with fixed plate, the top of fixed plate is fixedly installed with sealing gasket, sealing gasket top is inserted with adjusting part, and the bottom of adjusting part penetrates fixed plate and connecting part, the bottom of adjusting part is fixedly installed with rotating section, rotating section bottom is rotatably connected with flow control hemisphere, the left end of oil inlet pipe and the right end of oil outlet section are provided with reinforcing assembly, realize that the anti -backflow device for this petroleum machinery oil inlet flow is adjustable, and the effects such as longer service life, higher safety and more firm connection and higher sealing performance are achieved.

[0004] For the above description, the applicant believes that the following problems exist:

[0005] The utility model in the use process, by rotating handle, in turn make use of handle drive screw shaft to rotate, utilize the threaded connection of screw shaft and fixed plate and the sliding connection of screw shaft and connecting pipe, in turn make to the position of adjusting part is adjusted, in actual use process, since the spring elastic coefficient of the device is fixed, cannot very good meet the anti -backflow demand under different pressure and use, at the same time, the reinforcing frame of the device is only used by locking bolt, since oil appears vibration etc. in the use process, locking bolt is prone to loosening etc. Accidents, therefore need to improve a kind of anti -backflow device for petroleum machinery to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an anti -backflow device for petroleum machinery to solve the problems raised in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: an anti -backflow device for petroleum machinery, including liquid inlet pipe, the right side of liquid inlet pipe is fixedly connected with adjusting box, the right side of adjusting box is fixedly connected with liquid outlet pipe, adjusting box is internally provided with adjusting anti -backflow mechanism, and auxiliary mounting mechanism is arranged outside liquid inlet pipe.

[0008] The anti-backflow adjusting mechanism comprises a flow adjusting assembly and an anti-backflow assembly, the flow adjusting assembly is arranged in the adjusting box, and the anti-backflow assembly is arranged in the liquid outlet pipe.

[0009] Preferably, the flow adjusting assembly comprises a flow guide plate, the flow guide plate is rotationally connected in the adjusting box, a first connecting table is fixedly connected to the top of the adjusting box, a motor is fixedly connected to the front surface of the first connecting table, a bidirectional threaded rod is fixedly connected to the output end of the motor and extends to the inside of the first connecting table, a first limiting rod is fixedly connected to the inside of the first connecting table, and a limiting block is slidingly connected to the outside of the first limiting rod, so as to adjust the angle of the flow guide plate and to adjust the flow of oil entering the inside of the adjusting box.

[0010] Preferably, the limiting block is threadedly connected with the bidirectional threaded rod, the limiting block is slidingly connected with the first connecting table, and the limiting block is slidingly connected with the adjusting box, a groove is formed in the corresponding position of the limiting block and the flow guide plate, and the limiting block is in contact with the flow guide plate, so as to be more stable during use.

[0011] Preferably, the anti-backflow assembly comprises a support frame, the support frame is fixedly connected to the inside of the liquid outlet pipe, a connecting column is slidingly connected to the inside of the support frame, a sealing plate is fixedly connected to the right side of the connecting column, a first spring is fixedly connected to the left side of the connecting column, a second connecting table is fixedly connected to the inside of the liquid outlet pipe, a first bevel gear is rotationally connected to the inside of the second connecting table, a second threaded rod is rotationally connected to the inside of the second connecting table, a second bevel gear is fixedly connected to the outside of the second threaded rod, a second limiting rod is fixedly connected to the inside of the second connecting table, a movable block is slidingly connected to the outside of the second limiting rod, and a connecting ring is fixedly connected to the right side of the movable block, so as to adjust the relative position of the connecting ring and the connecting column, to adjust the elastic force of the first spring, and to adapt to different anti-backflow requirements.

[0012] Preferably, the connecting ring is fixedly connected with the first spring, the connecting ring is slidingly connected with the connecting column, the movable block is threadedly connected with the second threaded rod, and the first bevel gear is engaged with the second bevel gear, so as to be more stable during adjustment.

[0013] Preferably, the auxiliary mounting mechanism comprises a first reinforcing frame, the first reinforcing frame is arranged outside the liquid inlet pipe, a sliding rod is fixedly connected to the bottom of the first reinforcing frame, a second reinforcing frame is slidingly connected to the outside of the sliding rod, a limiting bolt is arranged between the first reinforcing frame and the second reinforcing frame, a connecting box is fixedly connected to the top of the first reinforcing frame, a second spring is fixedly connected to the inside of the connecting box, a sliding plate is fixedly connected to the end of the second spring away from the connecting box, and a clamping block is fixedly connected to the end of the sliding plate away from the second spring, so that the position of the clamping block can be adjusted, the position of the limiting bolt can be limited, and the limiting bolt can be prevented from loosening due to vibration or other accidents during use.

[0014] Preferably, the sliding plate and the connecting box are slidingly connected, the clamping block and the connecting box are slidingly connected, a groove is formed in the corresponding position of the clamping block and the limiting bolt, and the clamping block is in contact with the limiting bolt, so that the limiting process is more stable.

[0015] Compared with the prior art, the anti-backflow device for petroleum machinery has the following beneficial effects:

[0016] The anti-backflow device for petroleum machinery has the following beneficial effects:

[0017] The anti-backflow device for petroleum machinery has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor:

[0019] Figure 1 It is a front structure schematic view of the present application;

[0020] Figure 2 It is a cross-sectional structure schematic view of the present application;

[0021] Figure 3 It is flow regulating assembly structure schematic view of the utility model;

[0022] Figure 4 It is flow regulating assembly internal structure schematic view of the utility model;

[0023] Figure 5 It is anti-flowback assembly structure schematic view of the utility model;

[0024] Figure 6 It is anti-flowback assembly internal structure schematic view of the utility model;

[0025] Figure 7 It is auxiliary installation mechanism structure schematic view of the utility model;

[0026] Figure 8 It is auxiliary installation mechanism internal structure schematic view of the utility model.

[0027] In the figure: 1, liquid inlet pipe; 2, regulating box; 3, liquid outlet pipe; 4, regulating anti-flowback mechanism; 41, flow regulating assembly; 411, flow guide plate; 412, first connecting platform; 413, motor; 414, two-way threaded rod; 415, first limiting rod; 416, limiting block; 42, anti-flowback assembly; 421, support frame; 422, connecting column; 423, sealing plate; 424, first spring; 425, second connecting platform; 426, first bevel gear; 427, movable block; 428, connecting ring; 429, second threaded rod; 4210, second bevel gear; 4211, second limiting rod; 5, auxiliary installation mechanism; 51, first reinforcing frame; 52, sliding rod; 53, second reinforcing frame; 54, limiting bolt; 55, connecting box; 56, second spring; 57, sliding plate; 58, clamping block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through the intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relationship.For the ordinary skill in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances. Embodiment

[0030] Based on the existing prior art spring elastic coefficient fixed, resulting in the problem that cannot well meet the different pressure under the anti-flow requirement to use, the embodiment provides a kind of anti-flow device for petroleum machinery, please refer to Figures 1-6 The utility model provides a technical scheme: an anti-flow device for petroleum machinery, including liquid inlet pipe 1, liquid inlet pipe 1 right side fixedly connected with adjusting box 2, adjusting box 2 right side fixedly connected with liquid outlet pipe 3, adjusting box 2 inside is provided with adjusting anti-flow mechanism 4, liquid inlet pipe 1 outside is provided with auxiliary installation mechanism 5;

[0031] Adjusting anti-flow mechanism 4 includes flow regulating assembly 41 and anti-flow assembly 42, flow regulating assembly 41 is arranged in adjusting box 2, and anti-flow assembly 42 is arranged in liquid outlet pipe 3.

[0032] Further, flow regulating assembly 41 includes flow guide plate 411, flow guide plate 411 is rotatably connected in adjusting box 2, adjusting box 2 top is fixedly connected with first connecting table 412, first connecting table 412 front surface is fixedly connected with motor 413, motor 413 output end extends to the inside fixed connection with bidirectional screw rod 414 through first connecting table 412, first connecting table 412 inside is fixedly connected with first limit rod 415, first limit rod 415 outside is slidably connected with limit block 416, to facilitate the realization adjusting the angle of flow guide plate 411, to meet the oil flow entering the inside of adjusting box 2 is adjusted.

[0033] Further, limit block 416 is threadedly connected with bidirectional screw rod 414, limit block 416 is slidably connected with first connecting table 412, limit block 416 is slidably connected with adjusting box 2, groove is set up in the corresponding position of flow guide plate 411 and limit block 416, and limit block 416 is in contact with flow guide plate 411, to be more stable in use process.

[0034] Further, the anti-flowing assembly 42 comprises a support frame 421 fixedly connected inside the liquid outlet pipe 3, a connecting column 422 slidingly connected inside the support frame 421, a sealing plate 423 fixedly connected to the right side of the connecting column 422, a first spring 424 fixedly connected to the left side of the connecting column 422, a second connecting table 425 fixedly connected inside the liquid outlet pipe 3, a first bevel gear 426 rotationally connected inside the second connecting table 425, a second threaded rod 429 rotationally connected inside the second connecting table 425, a second bevel gear 4210 fixedly connected outside the second threaded rod 429, a second limiting rod 4211 fixedly connected inside the second connecting table 425, a movable block 427 slidingly connected outside the second limiting rod 4211, and a connecting ring 428 fixedly connected to the right side of the movable block 427, so as to adjust the relative position of the connecting ring 428 and the connecting column 422, to adjust the elastic force of the first spring 424, and to adapt to different anti-flowing requirements.

[0035] Further, the connecting ring 428 is fixedly connected with the first spring 424, the connecting ring 428 is slidingly connected with the connecting column 422, the movable block 427 is threadedly connected with the second threaded rod 429, and the first bevel gear 426 is engaged with the second bevel gear 4210, so as to make the adjustment process more stable. Embodiment

[0036] On the basis of the first embodiment, only a locking bolt is used in the prior art, and due to vibration and other conditions during use of the oil, the locking bolt is prone to loosening and other accidents. Therefore, the second embodiment is provided to solve the above technical problems, please refer to Figures 7-8 Further obtained in combination with the first embodiment, the auxiliary installation mechanism 5 comprises a first reinforcing frame 51 arranged outside the liquid inlet pipe 1, a sliding rod 52 fixedly connected to the bottom of the first reinforcing frame 51, a second reinforcing frame 53 slidingly connected outside the sliding rod 52, a limiting bolt 54 arranged between the first reinforcing frame 51 and the second reinforcing frame 53, a connecting box 55 fixedly connected to the top of the first reinforcing frame 51, a second spring 56 fixedly connected inside the connecting box 55, a sliding plate 57 fixedly connected to the end of the second spring 56 away from the connecting box 55, and a clamping block 58 fixedly connected to the end of the sliding plate 57 away from the second spring 56, so as to adjust the position of the clamping block 58, to limit the position of the limiting bolt 54, and to avoid loosening of the limiting bolt 54 due to vibration and other accidents during use.

[0037] Further, the sliding plate 57 is slidingly connected with the connecting box 55, the clamping block 58 is slidingly connected with the connecting box 55, a groove is formed at the corresponding position of the clamping block 58 and the limiting bolt 54, and the clamping block 58 is in contact with the limiting bolt 54, so as to make the limiting process more stable.

[0038] In actual operation, when the device is used, first, the inlet pipe 1 and the outlet pipe 3 are inserted and limitedly installed with the external connecting pipe, after the insertion is completed, the auxiliary installation mechanism 5 is matched for limiting, the workers cooperate the first reinforcing frame 51 with the second reinforcing frame 53 with the sliding rod 52, the first reinforcing frame 51 and the second reinforcing frame 53 are installed, the limiting bolt 54 is matched, the locking between the first reinforcing frame 51 and the second reinforcing frame 53 is realized, the workers pull the sliding plate 57, the sliding plate 57 is set to move, the second spring 56 is matched, the clamping block 58 is moved, after the installation is completed, the workers adjust according to the use demand, the motor 413 is set to work, the bidirectional threaded rod 414 is rotated, the first limiting rod 415 is matched, the limiting block 416 is moved, so that the flow guide plate 411 rotates in the adjusting box 2, after the adjustment is completed, the workers use according to the anti-backflow demand, the oil in the adjusting box 2 is discharged from the outlet pipe 3, the oil flow process makes the sealing plate 423 move, the connecting column 422 is matched, the compression and release process of the first spring 424 is realized, so that the anti-backflow process of the oil entering the outlet pipe 3 is realized, the workers rotate the first bevel gear 426, the first bevel gear 426 is set to rotate, the second bevel gear 4210 is matched, the second threaded rod 429 is rotated, the second limiting rod 4211 is matched, the movable block 427 is moved, so that the connecting ring 428 moves.

[0039] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A backflow prevention device for oil machinery comprising a liquid inlet pipe (1), characterized in that: The liquid inlet pipe (1) right side fixed connection has the adjusting box (2), the adjusting box (2) right side fixed connection has the liquid outlet pipe (3), the adjusting box (2) inside is provided with the anti-flow mechanism (4), the liquid inlet pipe (1) outside is provided with the auxiliary installation mechanism (5); The anti-flow mechanism (4) includes a flow regulating assembly (41) and an anti-flow assembly (42), the flow regulating assembly (41) is arranged in the adjusting box (2), and the anti-flow assembly (42) is arranged in the liquid outlet pipe (3); The anti-flow assembly (42) includes a support frame (421), the support frame (421) is fixedly connected inside the liquid outlet pipe (3), the support frame (421) is slidably connected with a connecting column (422), the connecting column (422) is fixedly connected with a sealing plate (423) on the right side, the connecting column (422) is fixedly connected with a first spring (424) on the left side, the liquid outlet pipe (3) is fixedly connected with a second connecting table (425), the second connecting table (425) is rotatably connected with a first bevel gear (426) inside, the second connecting table (425) is rotatably connected with a second threaded rod (429) inside, the second threaded rod (429) is fixedly connected with a second bevel gear (4210) outside, the second connecting table (425) is fixedly connected with a second limiting rod (4211) inside, the second limiting rod (4211) is slidably connected with a movable block (427) outside, and the movable block (427) is fixedly connected with a connecting ring (428) on the right side; The auxiliary installation mechanism (5) includes a first reinforcing frame (51), the first reinforcing frame (51) is arranged outside the liquid inlet pipe (1), the first reinforcing frame (51) is fixedly connected with a sliding rod (52) at the bottom, the sliding rod (52) is slidably connected with a second reinforcing frame (53) outside, the limiting bolt (54) is arranged between the first reinforcing frame (51) and the second reinforcing frame (53), the first reinforcing frame (51) is fixedly connected with a connecting box (55) at the top, the connecting box (55) is fixedly connected with a second spring (56) inside, one end of the second spring (56) away from the connecting box (55) is fixedly connected with a sliding plate (57), and one end of the sliding plate (57) away from the second spring (56) is fixedly connected with a clamping block (58).

2. A backflow prevention device for use in a petroleum machine according to claim 1, characterized by: The flow regulating assembly (41) includes a flow guide plate (411), the flow guide plate (411) is rotatably connected inside the adjusting box (2), the adjusting box (2) is fixedly connected with a first connecting table (412) at the top, the first connecting table (412) is fixedly connected with a motor (413) on the front face, the motor (413) is fixedly connected with a bidirectional threaded rod (414) inside and extends to the inside through the first connecting table (412), the first connecting table (412) is fixedly connected with a first limiting rod (415) inside, and the first limiting rod (415) is slidably connected with a limiting block (416) outside.

3. A backflow prevention device for use in a petroleum machine according to claim 2, characterized by: The limiting block (416) is in threaded connection with the bidirectional threaded rod (414), the limiting block (416) is in sliding connection with the first connecting table (412), the limiting block (416) is in sliding connection with the adjusting box (2), the flow guide plate (411) is provided with a slot at the corresponding position of the limiting block (416), and the limiting block (416) is in contact with the flow guide plate (411).

4. The backflow prevention device for oil machinery according to claim 1, characterized by: The connecting ring (428) is fixedly connected with the first spring (424), the connecting ring (428) is in sliding connection with the connecting column (422), the movable block (427) is in threaded connection with the second threaded rod (429), and the first bevel gear (426) is in meshing connection with the second bevel gear (4210).

5. The backflow prevention device for oil machinery according to claim 1, characterized by: The sliding plate (57) is in sliding connection with the connecting box (55), the clamping block (58) is in sliding connection with the connecting box (55), the limiting bolt (54) is provided with a slot at the corresponding position of the clamping block (58), and the clamping block (58) is in contact with the limiting bolt (54).

Images