Pressing type petroleum mechanical valve

Abstract

The utility model relates to the technical field of valves, and discloses a pressing type petroleum mechanical valve which comprises a tubular valve shell, a sealing plug is inserted into the top end of the tubular valve shell, a threaded pipe is connected to the upper half portion of the tubular valve shell in a threaded mode, a sealing cover is arranged at the top end of the threaded pipe in a sleeved mode, and a valve rod assembly is arranged at the center of the sealing cover and the center of the sealing plug in a penetrating mode. An elastic assembly is arranged between the bottom end of the sealing cover and the outer wall of the threaded pipe, and the outer side of the elastic assembly is sleeved with a protection assembly. The rotary knob is screwed to drive the sealing cover to move up and down along the guide rod, so that the compressed length of the spring is adjusted, the extrusion force between the sealing circular truncated cone and the sealing ring is adjusted, and the purpose of conveniently adjusting the sealing pressure is achieved. The fixing ring is sealed through the sealing cover, the bottom end of the sleeve is sealed through the supporting ring, and therefore a sealing cavity is formed in the sleeve, and the spring is stored in the sealing cavity. And therefore, the purposes of coating the spring and preventing corrosion are achieved.

Description

A press-type oil machinery valve Technical Field

[0001] This utility model relates to the field of valve technology, specifically a push-button type petroleum machinery valve. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be classified as shut-off valves, check valves, regulating valves, etc.

[0003] Chinese patent application date: August 29, 2022, publication number: CN218000620U, discloses a push-type petroleum machinery valve, including a top plate. A flow control mechanism is located at the bottom of the top plate, and a conveying pipe with a hollow structure is located at the bottom of the top plate. A plug ring with multiple through holes is located inside the conveying pipe. A hollow tube is located at the bottom of the top plate, embedded inside the conveying pipe, and multiple plug blocks are located at the bottom of the hollow tube. This invention improves the valve by placing a spring at the top, exposed to the air, which can be removed and replaced when the spring ages. Spring contraction causes a pressure plate to push a push rod, moving the conveying pipe downwards. As the conveying pipe moves downwards, the plug ring and plug blocks separate, and the oil inside the conveying pipe enters the outlet through the through holes and is discharged. Releasing the spring causes it to rebound, pushing the pressure plate. The pressure plate pulls the push rod, causing the conveying pipe to move upwards, causing the plug blocks to embed into the through holes, achieving self-sealing.

[0004] However, this technical solution is not convenient for adjusting the elasticity of the spring, that is, it is not convenient for adjusting the pressure during sealing. The spring is exposed to the air and is prone to corrosion and damage, so further improvements can be made. Summary of the Invention

[0005] Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a push-button type petroleum machinery valve, which has the advantages of convenient adjustment of sealing pressure and covering the spring to prevent corrosion. It solves the problems of inconvenient adjustment of spring elasticity and easy corrosion of springs exposed to air.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned purpose of conveniently adjusting the sealing pressure and covering the spring to prevent corrosion, this utility model provides the following technical solution: a press-type petroleum machinery valve, comprising a tubular valve body, an outlet pipe connected to the bottom end of the tubular valve body, an inlet pipe connected to the right side of the middle part of the tubular valve body, a sealing plug inserted into the top end of the tubular valve body, a threaded pipe threadedly connected to the upper half of the tubular valve body, a sealing cover fitted at the top end of the threaded pipe, a valve stem assembly passing through the center of the sealing cover and the sealing plug, an elastic component provided between the bottom end of the sealing cover and the outer wall of the threaded pipe, and a protective component fitted outside the elastic component.

[0009] Preferably, a convex ring is fixedly installed on the top of the sealing plug, and a pressure ring is fixedly installed on the inner wall of the threaded tube. The bottom of the pressure ring and the top of the tubular valve body are respectively attached to the upper and lower sides of the convex ring.

[0010] Preferably, an extension ring is fixedly installed on the outer wall of the bottom end of the sealing cover, and an array of U-shaped grooves are formed through the extension ring, extending to the edge of the extension ring. A threaded hole is formed at the center of the top of the sealing cover.

[0011] Preferably, the valve stem assembly includes a valve stem body that is slidably connected through the center of the sealing plug. A sealing frustum is fixedly installed at the bottom end of the valve stem body. The sealing frustum is frustum-shaped. A sealing ring is fixedly installed on the inner wall of the tubular valve housing. The sealing ring is located below the inlet pipe. The sealing frustum is inserted into the sealing ring from bottom to top and seals the sealing ring. A connecting plate is fixedly installed at the top end of the valve stem body. A slider is fixedly arranged in an array on the edge of the connecting plate. A slide rail is fixedly arranged in an array on the inner wall of the threaded pipe. The slide rail is slidably connected within the slide rail. A threaded rod is rotatably connected to the top of the connecting plate. The threaded rod is threadedly connected to the center of the sealing cover. A knob is fixedly installed at the top end of the threaded rod.

[0012] Preferably, the elastic component includes an annular seat fixedly installed on the outer wall of the threaded tube, the annular seat being located directly below the extension ring, and an array of U-shaped grooves II extending through the annular seat to the edge of the annular seat. The U-shaped grooves II correspond one-to-one with U-shaped grooves I, and the U-shaped grooves II are located directly below U-shaped grooves I. Guide rods are inserted into U-shaped grooves II and I, and the bottom end of the guide rods is threaded. Two nuts are threaded to the bottom end of the guide rods, and the two nuts are clamped on the upper and lower sides of the annular seat. A spring is sleeved on the outside of the guide rods, and washers are fixedly installed at both ends of the springs. The two washers are respectively attached to the top of the annular seat and the bottom of the extension ring.

[0013] Preferably, the protective assembly includes a sleeve fitted over the annular seat and the outer side of the extension ring. A fixing ring is fixedly installed at the top end of the sleeve, and an array of through holes are provided on the fixing ring. A guide rod is slidably connected in the through holes. An annular flange is fixedly installed on the outer wall of the bottom end of the sleeve, and an array of bolt holes are provided on the annular flange. A support ring is fixedly installed on the outer wall of the threaded tube, and the annular flange is fixed to the support ring by bolts.

[0014] Preferably, the inner diameter of the fixing ring is equal to the outer diameter of the sealing cover, and the inner diameter of the sleeve is greater than the outer diameter of the extension ring.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a push-button type petroleum machinery valve, which has the following beneficial effects:

[0017] 1. This push-button type petroleum machinery valve, by turning the knob, drives the sealing cover to move up and down along the guide rod, thereby adjusting the length of the compressed spring, thereby adjusting the squeezing pressure between the sealing frustum and the sealing ring, thus achieving the purpose of conveniently adjusting the sealing pressure;

[0018] 2. This push-type petroleum machinery valve seals the fixed ring with a sealing cover and the bottom end of the casing with a support ring, thereby forming a sealed cavity inside the casing, where the spring is stored; thus achieving the purpose of covering the spring and preventing corrosion.

[0019] 3. When the spring of this push-button type petroleum machinery valve needs to be replaced, the bolt between the annular flange and the support ring can be removed, the sleeve can be pulled upward to expose the guide rod and the spring, then the nut can be loosened, the guide rod can be removed from the U-groove 1 and U-groove 2, and then the spring can be replaced; thus achieving the purpose of convenient spring replacement. Attached Figure Description

[0020] Figure 1 is a three-dimensional structural diagram of this utility model;

[0021] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0022] Figure 3 is a three-dimensional structural diagram of the sealing cover and valve stem assembly of this utility model.

[0023] Figure 4 is a three-dimensional structural diagram of the elastic component and protective component of this utility model.

[0024] In the diagram: 100, tubular valve body; 200, outlet pipe; 300, inlet pipe; 400, sealing plug; 500, threaded pipe; 600, sealing cover; 700, valve stem assembly; 800, elastic component; 900, protection component;

[0025] 101. Sealing ring; 401. Raised ring; 501. Pressure ring; 601. Extension ring; 602. U-groove I; 603. Threaded hole; 701. Valve stem body; 702. Sealing frustum; 703. Connecting disc; 704. Slider; 705. Threaded rod; 706. Knob; 707. Slide rail; 801. Annular seat; 802. U-groove II; 803. Guide rod; 804. Nut; 805. Spring; 806. Washer; 901. Sleeve; 902. Retaining ring; 903. Insertion hole; 904. Annular flange; 905. Bolt hole; 906. Support ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please refer to Figures 1-4. A push-button type petroleum machinery valve includes a tubular valve body 100. A liquid outlet pipe 200 is connected to the bottom end of the tubular valve body 100, and a liquid inlet pipe 300 is connected to the right side of the middle portion of the tubular valve body 100. A sealing plug 400 is inserted into the top end of the tubular valve body 100 to seal the top end. A threaded pipe 500 is threadedly connected to the upper half of the tubular valve body 100. A sealing cover 600 is fitted onto the top end of the threaded pipe 500. A valve stem assembly 700 passes through the center of the sealing cover 600 and the sealing plug 400, and is slidably connected to the center of the sealing plug 400. An elastic component 800 is provided between the bottom end of the sealing cover 600 and the outer wall of the threaded pipe 500. The elasticity of the elastic component 800 causes the sealing cover 600 to have an upward tendency to move. A protective component 900 is sleeved on the outside of the elastic component 800, and the protective component 900 covers the outside of the elastic component 800 for protection.

[0028] A convex ring 401 is fixedly installed on the top of the sealing plug 400, and a pressure ring 501 is fixedly installed on the inner wall of the threaded tube 500. The bottom of the pressure ring 501 and the top of the tubular valve body 100 are respectively attached to the upper and lower sides of the convex ring 401. This ensures that the sealing plug 400 is stably inserted into the top of the tubular valve body 100, maintaining a seal at the top of the tubular valve body 100. When replacing the sealing plug 400, simply unscrew the threaded tube 500 to remove it from the tubular valve body 100, and the sealing plug 400 can be removed.

[0029] An extension ring 601 is fixedly installed on the outer wall of the bottom end of the sealing cover 600. U-shaped grooves 602 are arranged in an array through the extension ring 601. The U-shaped grooves 602 extend to the edge of the extension ring 601. The side wall of the U-shaped grooves 602 near the center of the sealing cover 600 is semi-circular. A threaded hole 603 is provided at the center of the top of the sealing cover 600.

[0030] The valve stem assembly 700 includes a valve stem body 701 that is slidably connected through the center of the sealing plug 400. A sealing frustum 702 is fixedly installed at the bottom end of the valve stem body 701. The sealing frustum 702 is frustum shaped. A sealing ring 101 is fixedly installed on the inner wall of the tubular valve housing 100. The sealing ring 101 is located below the liquid inlet pipe 300. The sealing frustum 702 is inserted into the sealing ring 101 from bottom to top and seals the sealing ring 101.

[0031] A connecting plate 703 is fixedly installed at the top of the valve stem body 701. A slider 704 is fixedly arranged in an array along the edge of the connecting plate 703. A slide rail 707 is fixedly arranged in an array along the inner wall of the threaded pipe 500, and the slide rail 707 is slidably connected within the pipe. A threaded rod 705 is rotatably connected to the top of the connecting plate 703. The threaded rod 705 is threadedly connected to the center of the sealing cover 600, i.e., threadedly connected to the threaded hole 603. A knob 706 is fixedly installed at the top of the threaded rod 705. By pressing the knob 706 downwards, guided by the slider 704 and the slide rail 707, the valve stem body 701 and the sealing frustum 702 move downwards, the sealing ring 101 is no longer sealed, and the inlet pipe 300 and the outlet pipe 200 are connected.

[0032] The elastic component 800 includes an annular seat 801 fixedly installed on the outer wall of the threaded tube 500. The annular seat 801 is located directly below the extension ring 601. U-shaped grooves 802 are arranged in an array through the annular seat 801. The U-shaped grooves 802 extend to the edge of the annular seat 801. The U-shaped grooves 802 correspond one-to-one with the first U-shaped groove 602, and the second U-shaped groove 802 is located directly below the first U-shaped groove 602.

[0033] Guide rods 803 are inserted into U-shaped grooves 802 and 602. The bottom end of guide rod 803 is threaded, and two nuts 804 are threaded onto the bottom end of guide rod 803. The two nuts 804 clamp the upper and lower sides of the annular seat 801, thus stably positioning guide rod 803 on the annular seat 801. The annular seat 801 guides the vertical movement of the extension ring 601, and guide rod 803 also inhibits the rotation of the sealing cover 600 and the extension ring 601. Furthermore, by loosening the nuts 804, guide rod 803 can be removed from U-shaped grooves 602 and 802 for easy replacement of spring 805. Spring 805 is sleeved on the outside of guide rod 803. Washers 806 are fixedly installed at both ends of spring 805, with the two washers 806 respectively fitting against the top of the annular seat 801 and the bottom of the extension ring 601. The elasticity of the spring 805 drives the sealing cover 600 to move upward, which in turn causes the threaded rod 705, connecting disc 703, valve stem body 701 and sealing frustum 702 to move upward, so that the sealing frustum 702 is tightly attached to the inner wall of the sealing ring 101, ensuring the sealing effect of the sealing ring 101.

[0034] By turning knob 706, the guide rod 803 inhibits the rotation of the extension ring 601 and the sealing cover 600, thereby causing the sealing cover 600 to move up and down, adjusting the initial compression of spring 805, and thus adjusting the pressure between the sealing frustum 702 and the sealing ring 101. This allows the minimum downward force required to move knob 706 to be adjustable. When spring 805 ages and its elasticity decreases, turning knob 706 can adjust the initial compression of spring 805 to maintain the pressure between the sealing frustum 702 and the sealing ring 101, temporarily ensuring the sealing effect of the sealing ring 101 and allowing time for spring 805 replacement.

[0035] The protective assembly 900 includes a sleeve 901 fitted over the annular seat 801 and the extension ring 601. A retaining ring 902 is fixedly installed at the top of the sleeve 901. The inner diameter of the retaining ring 902 is equal to the outer diameter of the sealing cover 600, and the inner diameter of the sleeve 901 is slightly larger than the outer diameter of the extension ring 601 to reduce the friction between the extension ring 601 and the sleeve 901. An array of through holes 903 are provided on the retaining ring 902, and a guide rod 803 is slidably connected within the through holes 903. An annular flange 904 is fixedly installed on the outer wall of the bottom end of the sleeve 901. An array of bolt holes 905 are provided on the annular flange 904. A support ring 906 is fixedly installed on the outer wall of the threaded tube 500, and the annular flange 904 is fixed to the support ring 906 by bolts. Thus, the opening of the fixing ring 902 is sealed by the sealing cover 600, and the bottom end of the sleeve 901 is sealed by the support ring 906, forming a sealed cavity inside the sleeve 901. The spring 805 is stored in the sealed cavity to prevent the spring 805 from being exposed to wind and rain and to prevent the spring 805 from rusting.

[0036] In use, by turning the knob 706, the sealing cover 600 is moved up and down along the guide rod 803, thereby adjusting the length of the compressed spring 805, thereby adjusting the squeezing force between the sealing frustum 702 and the sealing ring 101, and adjusting the sealing force.

[0037] By pressing down on the knob 706, the guide action of the slide rail 707 and the slider 704 causes the threaded rod 705, the connecting plate 703, and the valve stem body 701 to descend vertically, separating the sealing frustum 702 from the sealing ring 101, and connecting the inlet pipe 300 with the outlet pipe 200; after releasing the knob 706, under the elastic action of the spring 805, the threaded rod 705 moves upward, and the sealing frustum 702 re-inserts into the sealing ring 101 to reset;

[0038] When it is necessary to replace the spring 805, the bolt between the annular flange 904 and the support ring 906 can be removed, the sleeve 901 can be pulled upward to expose the guide rod 803 and the spring 805, the nut 804 can be loosened, the guide rod 803 can be removed from the U-groove 1 602 and U-groove 2 802, and then the spring 805 can be replaced.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A push-button type oil machinery valve, comprising a tubular valve body (100), characterized in that: The bottom end of the tubular valve housing (100) is connected to the outlet pipe (200), the right side of the middle part of the tubular valve housing (100) is connected to the inlet pipe (300), the top end of the tubular valve housing (100) is inserted with a sealing plug (400), the upper half of the tubular valve housing (100) is threadedly connected to a threaded pipe (500), the top end of the threaded pipe (500) is fitted with a sealing cover (600), a valve stem assembly (700) is provided through the center of the sealing cover (600) and the sealing plug (400), an elastic component (800) is provided between the bottom end of the sealing cover (600) and the outer wall of the threaded pipe (500), and a protective component (900) is fitted on the outside of the elastic component (800).

2. The push-button type petroleum machinery valve according to claim 1, characterized in that: A convex ring (401) is fixedly installed on the top of the sealing plug (400), and a pressure ring (501) is fixedly installed on the inner wall of the threaded tube (500). The bottom of the pressure ring (501) and the top of the tubular valve body (100) are respectively attached to the upper and lower sides of the convex ring (401).

3. A push-button type petroleum machinery valve according to claim 1, characterized in that: An extension ring (601) is fixedly installed on the outer wall of the bottom end of the sealing cover (600). A U-shaped groove (602) is arrayed through the extension ring (601) and extends to the edge of the extension ring (601). A threaded hole (603) is provided at the center of the top of the sealing cover (600).

4. A push-button type petroleum machinery valve according to claim 1, characterized in that: The valve stem assembly (700) includes a valve stem body (701) that is slidably connected through the center of the sealing plug (400). A sealing frustum (702) is fixedly installed at the bottom end of the valve stem body (701). The sealing frustum (702) is frustum shaped. A sealing ring (101) is fixedly installed on the inner wall of the tubular valve housing (100). The sealing ring (101) is located below the inlet pipe (300). The sealing frustum (702) is inserted into the sealing ring (101) from bottom to top and seals the sealing ring (101). A connecting plate (703) is fixedly installed at the top of the valve stem body (701). A slider (704) is fixedly arranged on the edge of the connecting plate (703). A slide rail (707) is fixedly arranged on the inner wall of the threaded tube (500). The slide rail (707) is slidably connected inside the slide rail (707). A threaded rod (705) is rotatably connected to the top of the connecting plate (703). The threaded rod (705) is threadedly connected to the center of the sealing cover (600). A knob (706) is fixedly installed at the top of the threaded rod (705).

5. A push-button type petroleum machinery valve according to claim 3, characterized in that: The elastic component (800) includes an annular seat (801) fixedly mounted on the outer wall of the threaded tube (500). The annular seat (801) is located directly below the extension ring (601). An array of U-shaped grooves (802) are formed through the annular seat (801), extending to the edge of the annular seat (801). Each U-shaped groove (802) corresponds to one U-shaped groove (602), and is located directly below the first U-shaped groove (602). A guide rod (803) is inserted into the U-shaped groove (602). The bottom end of the guide rod (803) is threaded and connected to two nuts (804). The two nuts (804) are clamped on the upper and lower sides of the annular seat (801). A spring (805) is sleeved on the outside of the guide rod (803). Washers (806) are fixedly installed at both ends of the spring (805). The two washers (806) are respectively attached to the top of the annular seat (801) and the bottom of the extension ring (601).

6. A push-button type petroleum machinery valve according to claim 1, characterized in that: The protective component (900) includes a sleeve (901) fitted around the annular seat (801) and the extension ring (601). A fixing ring (902) is fixedly installed at the top of the sleeve (901). An array of insertion holes (903) are provided on the fixing ring (902). A guide rod (803) is slidably connected in the insertion hole (903). An annular flange (904) is fixedly installed on the outer wall of the bottom end of the sleeve (901). An array of bolt holes (905) are provided on the annular flange (904). A support ring (906) is fixedly installed on the outer wall of the threaded tube (500). The annular flange (904) is fixed to the support ring (906) by bolts.

7. A push-button type petroleum machinery valve according to claim 6, characterized in that: The inner diameter of the fixing ring (902) is equal to the outer diameter of the sealing cover (600), and the inner diameter of the sleeve (901) is greater than the outer diameter of the extension ring (601).

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