Anti-falling structure of valve group

Abstract

The utility model discloses a valve group anti-falling structure which comprises a valve rod body, valve plates are arranged on the two sides of the valve rod body, a semi-ring body used for primarily fixing the valve plates is further arranged on the lower side of the valve rod body, the semi-ring body is arranged in an annular groove, and the annular groove is formed in the lower side of the valve rod body. The two groups of semi-ring bodies are used for fixing a valve plate on the valve rod body through a locking ring, each semi-ring body is further provided with a multi-stage mounting assembly used for fixing the valve plate, each multi-stage mounting assembly comprises a positioning clamping groove, the positioning clamping grooves are formed in the semi-ring bodies, positioning blocks are arranged in the positioning clamping grooves and are connected with the valve plate, and the valve plate is arranged in the positioning clamping grooves. The valve plate can be fixed in a multi-stage mode, the valve plate is connected with the valve rod body, the firmness of the valve plate in the installation process is greatly improved, the situation that the valve plate is loosened when the valve plate is used for a long time is avoided, and the using stability of a valve set is guaranteed.

Description

Technical Field

[0001] The utility model relates to valve body technology, in particular to an anti-detachment structure for a valve group. Background Art

[0002] Valves are one of the more common components in the pneumatic field and are mainly used to control fluids. In the oil production process of oilfields, when the oilfield development enters the high water cut period, in order to improve the oil recovery rate, alkali, surfactant, polymer and other ternary composite agents need to be injected into the formation. After the crude oil is produced, it needs to be mixed with gas and water on the ground and transported to the metering room. During the crude oil transportation process, it needs to pass through various valve groups and pipelines installed on the Christmas tree and wellhead and be mixed with hot water to raise the temperature of the crude oil to 33-35°C, reduce the viscosity and then be smoothly output. Multiple valve groups are installed on these transportation pipelines to control the switching of the passages of oil, gas and water.

[0003] Currently, valve plates are installed in valve groups. The valve plates are simultaneously installed on the valve stem, and a single fixing structure is adopted. After a long time, this single fixing structure is prone to cause the valve plates to become loose, thereby affecting the stability of the use of the entire valve group. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: to provide an anti-detachment structure for a valve group, which solves the problem that currently, valve plates are installed in valve groups, the valve plates are simultaneously installed on the valve stem, and a single fixing structure is adopted. After a long time, this single fixing structure is prone to cause the valve plates to become loose, thereby affecting the stability of the use of the entire valve group.

[0005] To solve the above technical problem, the utility model provides an anti-detachment structure for a valve group, including a valve stem body. Valve plates are arranged on both sides of the valve stem. A semi-ring body for primary fixing of the valve plates is further arranged on the lower side of the valve stem body. The semi-ring body is arranged in an annular groove, and the annular groove is arranged on the lower side of the valve stem body. The two semi-ring bodies fix the valve plates on the valve stem body through a locking ring. Among them, the semi-ring body is further provided with a multi-stage installation component for fixing the valve plates. The multi-stage installation component includes a positioning card slot. The positioning card slot is arranged on the semi-ring body, and a positioning block is arranged in the positioning card slot. The positioning block is connected to the valve plate.

[0006] Preferably, a positioning thread sleeve is arranged on one side surface inside the positioning card slot. The positioning thread sleeve penetrates through a positioning port. The positioning port is arranged on the positioning block, and the positioning thread sleeve and the positioning block can be positioned and connected.

[0007] Preferably, one end of the positioning thread sleeve is clamped in a first installation groove. The first installation groove is arranged on one side of the valve stem body, and the positioning thread sleeve and the valve stem body can be positioned and assembled.

[0008] Preferably, a first screw rod is arranged inside the positioning threaded sleeve, a second screw rod is arranged at one end of the first screw rod, one end of the second screw rod is connected to a threaded hole, and the threaded hole is arranged on one side surface inside the first installation groove, so as to connect the positioning threaded sleeve with the valve rod body.

[0009] Preferably, a central cone body is arranged on the first screw rod, and the central cone body is attached to two sets of clamping components.

[0010] Preferably, the clamping component includes a wedge block, the wedge block is arranged at one end of a clamping rod, and the wedge block is attached to the central cone body. The clamping rod is movably arranged inside a guiding opening, and the guiding opening is arranged on the positioning threaded sleeve, so that the movement of the central cone body can drive the wedge block to move, and make the clamping rod attached to the valve rod for secondary fixation.

[0011] Preferably, one end of the clamping rod is clamped inside a second installation groove, and the second installation groove is arranged on one side surface inside the first installation groove, so as to position and clamp the position of the clamping rod.

[0012] Preferably, guiding sliding blocks are arranged on both sides of the clamping rod, and one end of each guiding sliding block is slidably arranged inside a guiding sliding groove, and the guiding sliding grooves are arranged on both sides inside the guiding opening, which improves the guiding property when the clamping rod moves.

[0013] Preferably, a sealing part is further arranged on one side of the valve plate, and a positioning part for cooperating with the valve body housing is arranged on the upper side of the valve rod body.

[0014] The beneficial effects of the present utility model are:

[0015] When the valve plate of the present utility model is installed, the valve plate can be fixed at multiple levels and connected with the valve rod body, greatly improving the firmness during the installation of the valve plate, avoiding the situation that the valve plate becomes loose during long-term use, and ensuring the stability of the valve group during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view structural schematic diagram of the present utility model;

[0017] Figure 2 is the partial front view sectional structural schematic diagram of the present utility model;

[0018] Figure 3 is Figure 2 the partial enlarged structural schematic diagram of part A in

[0019] Figure 4 is Figure 2 the partial enlarged structural schematic diagram of part B in

[0020] Figure 5 is Figure 4Schematic diagram of a partially enlarged structure of part C

[0021] In the figure: 1. Semi-ring body; 2. Locking ring; 3. Sealing part; 4. Valve plate; 5. Valve stem body; 6. Positioning part; 7. Annular groove; 301. Positioning card slot; 302. Positioning block; 303. Positioning port; 304. Positioning threaded sleeve; 305. First screw; 306. Countersunk head groove; 307. Central cone; 308. Second screw; 309. Threaded hole; 310. Wedge block; 311. Guide port; 312. Clamping rod; 313. Second installation groove; 314. Guide slider; 315. Guide chute; 316. First installation groove Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. All directional indications (such as up, down, left, right, front, back...) in the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly

[0023] Please refer to Figure 1 - Figure 2 a valve group anti-detachment structure, which includes a valve stem body 5. Valve plates 4 are arranged on both sides of the valve stem. A semi-ring body 1 for initially fixing the valve plate 4 is further arranged on the lower side of the valve stem body 5. The semi-ring body 1 is arranged in an annular groove 7, and the annular groove 7 is arranged on the lower side of the valve stem body 5. The two semi-ring bodies 1 fix the valve plate 4 on the valve stem body 5 through a locking ring 2

[0024] First, install the valve plate 4 and the valve stem body 5, then install the semi-ring body 1 in the annular groove 7, and then fix the two semi-ring bodies 1 on the valve stem body 5 through the locking ring 2. At the same time, the semi-ring body 1 fits with the valve plate 4 to lock and fix the valve plate 4

[0025] As a specific embodiment of this application, please refer to Figure 2 box Figure 3 the semi-ring body 1 is further provided with a multi-stage installation component for fixing the valve plate 4. The multi-stage installation component includes a positioning card slot 301 arranged on the semi-ring body 1. A positioning block 302 is arranged in the positioning card slot 301. The positioning block 302 is connected to the valve plate 4. A positioning threaded sleeve 304 is arranged on one side surface in the positioning card slot 301. The positioning threaded sleeve 304 passes through a positioning port 303 arranged on the positioning block 302, which can positionally connect the positioning threaded sleeve 304 and the positioning block 302. One end of the positioning threaded sleeve 304 is clamped in a first installation groove 316 arranged on one side of the valve stem body 5, which can positionally assemble the positioning threaded sleeve 304 and the valve stem body 5

[0026] When installing the semi-cylindrical body 1, align the positioning slot 301 with the positioning block 302, pass the positioning threaded sleeve 304 through the positioning port 303, and snap the positioning threaded sleeve 304 into the first installation groove 316, which can positionally connect the semi-cylindrical body 1 and the positioning block 302.

[0027] As a specific embodiment of this application, please refer to Figure 4 , a first screw rod 305 is arranged inside the positioning threaded sleeve 304. One end of the first screw rod 305 is provided with a second screw rod 308. One end of the second screw rod 308 is connected to the threaded hole 309. The threaded hole 309 is arranged on one side surface inside the first installation groove 316, which can connect the positioning threaded sleeve 304 and the valve stem body 5.

[0028] After the positioning threaded sleeve 304 is installed in the first installation groove 316, rotate the first thread. The first thread drives the second screw rod 308 to rotate and move, so that the second screw rod 308 is connected to the threaded hole 309, completing the connection between the positioning threaded sleeve 304 and the valve stem body 5.

[0029] Specifically, a counterbore 306 is arranged on the outer surface of the semi-cylindrical body 1, which can hide and accommodate the first thread.

[0030] As a specific embodiment of this application, please refer to Figure 4 and Figure 5 , a central cone 307 is arranged on the first screw rod 305. The central cone 307 is in contact with two sets of clamping components. The clamping components include a wedge block 310. The wedge block 310 is arranged at one end of the clamping rod 312, and the wedge block 310 is in contact with the central cone 307. The clamping rod 312 is movably arranged in the guiding port 311. The guiding port 311 is arranged on the positioning threaded sleeve 304. Through the movement of the central cone 307, the wedge block 310 can be driven to move, and the clamping rod 312 can be brought into contact with the valve stem for secondary fixation. One end of the clamping rod 312 is clamped in the second installation groove 313. The second installation groove 313 is arranged on one side surface inside the first installation groove 316, which can positionally clamp the position of the clamping rod 312.

[0031] During the rotation of the first screw rod 305, the central cone 307 is driven to move. The movement of the central cone 307 drives the wedge block 310 to move. The wedge block 310 drives the clamping rod 312 to move in the guiding port 311, and the clamping rod 312 is snapped into the second installation groove 313, and the positioning threaded sleeve 304 is fixed, avoiding the situation of the valve plate 4 becoming loose later.

[0032] Further, guiding sliders 314 are arranged on both sides of the clamping rod 312. One end of each guiding slider 314 is slidably arranged in a guiding chute 315. The guiding chutes 315 are arranged on both sides inside the guiding openings 311. The movement of the clamping rod 312 drives the guiding sliders 314 to move in the guiding chutes 315, improving the guiding property when the clamping rod 312 moves.

[0033] Further, a sealing portion 3 is also arranged on one side of the valve plate 4 to improve the overall sealing property. A positioning portion 6 that cooperates with the valve body housing is arranged on the upper side of the valve stem body 5, facilitating the positioning and installation with the valve body housing.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve group anti-falling structure, characterized in that: It comprises a valve stem body (5), valve plates (4) are arranged on both sides of the valve stem, a semi-ring body (1) for primary fixing of the valve plate (4) is also arranged on the lower side of the valve stem body (5), the semi-ring body (1) is arranged in an annular groove (7), the annular groove (7) is arranged on the lower side of the valve stem body (5), two groups of the semi-ring bodies (1) fix the valve plate (4) on the valve stem body (5) through a locking ring (2), wherein the semi-ring body (1) is also provided with a multi-stage mounting assembly for fixing the valve plate (4), the multi-stage mounting assembly comprises a positioning groove (301), the positioning groove (301) is arranged on the semi-ring body (1), a positioning block (302) is arranged in the positioning groove (301), and the positioning block (302) is connected to the valve plate (4).

2. A valve group anti-falling structure according to claim 1, characterized in that: A positioning thread sleeve (304) is provided on one side surface of the positioning slot (301), and the positioning thread sleeve (304) passes through a positioning opening (303), and the positioning opening (303) is provided on the positioning block (302).

3. A valve group anti-falling structure according to claim 2, characterized in that: One end of the positioning threaded sleeve (304) is clamped in a first mounting groove (316), and the first mounting groove (316) is arranged on one side of the valve stem body (5).

4. A valve group anti-falling structure according to claim 3, characterized in that: A first screw rod (305) is arranged in the positioning threaded sleeve (304), a second screw rod (308) is arranged at one end of the first screw rod (305), one end of the second screw rod (308) is connected to a threaded hole (309), and the threaded hole (309) is arranged on a side surface of the first mounting groove (316).

5. A valve group anti-falling structure according to claim 4, characterized in that: A central cone (307) is provided on the first screw rod (305), and the central cone (307) is fitted with two sets of clamping components.

6. A valve group anti-falling structure according to claim 5, characterized in that: The clamping assembly comprises a wedge block (310), the wedge block (310) is arranged at one end of a clamping rod (312), and the wedge block (310) is fitted with a central vertebral body (307), the clamping rod (312) is movably arranged in a guide opening (311), and the guide opening (311) is arranged on a positioning threaded sleeve (304).

7. A valve group anti-falling structure according to claim 6, characterized in that: One end of the clamping rod (312) is clamped in the second installation groove (313), and the second installation groove (313) is arranged on a side surface inside the first installation groove (316).

8. The valve group anti-falling structure according to claim 6, characterized in that: Guide slide blocks (314) are arranged on both sides of the clamping rod (312), one end of the guide slide block (314) is slidably arranged in a guide slide groove (315), and the guide slide groove (315) is arranged on both sides of the guide opening (311).

9. The valve group anti-falling structure according to claim 1, characterized in that: A sealing portion (3) is also provided on one side of the valve plate (4), and a positioning portion (6) that cooperates with the valve body shell is provided on the upper side of the valve stem body (5).

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