CN207437817U - A kind of theft-proof gate valve - Google Patents

Abstract

The utility model discloses a kind of theft-proof gate valves, belong to wellhead for production field.The theft-proof gate valve includes valve body, is arranged on the flashboard of valve inner, the leading screw that be connected and be located at outside valve body with flashboard, the first gland, screw set, the second gland, bearing, the fixing piece being sleeved on thread connecting mode on leading screw.Wherein, the first gland is fixedly set in including linkage section connected in sequence, seal section and /V section, linkage section on valve body, and seal section is contacted with leading screw dynamic sealing.Second gland fixing sleeve is arranged in /V section, and cooperatively forms bearing bore with /V section, seal section, screw set.Bearing is arranged in bearing bore, and is fixedly set on screw set.Fixing piece is detachably set, for screw set to be fixed on /V section.Environmental pollution caused by the utility model, with double anti-theft functions, can improve anti-theft effect by setting screw set and fixing piece, and then reduction oil and gas loss and oil gas leak.

Description

A kind of theft-proof gate valve

Technical field

The utility model is related to wellhead for production field, more particularly to a kind of theft-proof gate valve.

Background technology

Gate valve is essential component in oil extraction well head device, and oil and gas production, just can be controlled by switching gate valve In test etc..Under normal circumstances, gate valve folding can be realized by rotating handwheel, and producing well disperses in the wild, easily stolen Molecule opens gate valve theft oil gas, causes oil and gas loss and environmental pollution, oil and gas leakage can also bring security risk.Therefore, have Necessity improves the anti-theft of gate valve.

The prior art makes thief that can not arbitrarily rotate handwheel, reaches by the way that the binding of handwheel iron wire is fixed The purpose of fixed gate valve.

Designer has found that the prior art has at least the following problems：

The easily stolen molecule of stealing of iron wire destroys so that the anti-theft effect of gate valve is bad.

Utility model content

The utility model embodiment provides a kind of theft-proof gate valve, can solve the above problems.The theft-proof gate valve includes valve Body, the flashboard for being arranged on the valve inner, the theft-proof gate valve further include：Leading screw, the first gland, screw set, the second gland, Bearing, fixing piece；

The leading screw is connected with the flashboard, and outside the valve body；

First gland includes linkage section connected in sequence, seal section and /V section, and the linkage section is fixedly set in On the valve body, the inner wall of the seal section is contacted with the outer wall dynamic sealing of the leading screw；

The screw set is sleeved on thread connecting mode on the leading screw, and one end offsets with the seal section；

The second gland fixing sleeve be arranged on the /V section in, and with the /V section, the seal section, the leading screw Set cooperatively forms bearing bore；

The bearing is arranged in the bearing bore, and is fixedly set on the screw set；

The fixing piece is detachably set, for the screw set to be fixed on the /V section.

Specifically, preferably, the leading screw and the flashboard key connection.

Specifically, preferably, the linkage section is connected with the valve body screw thread；

The /V section is threadedly coupled with second gland.

Specifically, preferably, being provided with unthreaded hole on the screw set, the position of the unthreaded hole is corresponded in the /V section It is provided with mounting hole；

The fixing piece is inserted into the unthreaded hole through the mounting hole.

Specifically, preferably, multiple unthreaded holes are uniformly arranged in the circumferential direction on the screw set, correspondingly, multiple The mounting hole is uniformly arranged in the circumferential direction in the /V section.

Specifically, preferably, the position that the mounting hole is corresponded in the /V section is provided with protective case, for accommodating The fixing piece.

Specifically, preferably, the fixing piece includes spanner section connected in sequence, fixed section and inserted link section；

The spanner section is located in the protective case；

The fixed section is threadedly coupled with the mounting hole；

The inserted link section is inserted into the unthreaded hole；

The spanner section and the junction of the fixed section are provided with sealing element, for sealing the spanner section and the guarantor Gap between sheath.

Specifically, preferably, the spanner section is seven prisms.

Specifically, preferably, the theft-proof gate valve further includes：Handwheel, the handwheel are fixedly set in the screw set On.

Specifically, preferably, being provided with grease tap in the /V section, the grease tap is connected with the bearing bore.

The advantageous effect brought of technical solution that the utility model embodiment provides is：

When needing to open the theft-proof gate valve, rotational lead screw set, since bearing is arranged in bearing bore, bearing can not control It is mobile, bearing fixing sleeve on screw set, so screw set in rotation process without moving left and right, at this point, and leading screw The leading screw of external threading connection is moved axially with the rotation of screw set, is moved left and right with driving positioned at the in vivo flashboard of valve, real The now folding of the theft-proof gate valve.Also, by the way that bearing is arranged between screw set and /V section, the rotation of screw set is made more to save Power.The theft-proof gate valve that the utility model embodiment provides realizes the switch of gate valve by the rotation of screw set, and thief is not Gate valve can not be opened in the case of understanding operation principle, realizes that the first weight is antitheft.Screw set is fixed on by /V by fixing piece Duan Shang can limit the rotation of screw set.When not removing fixing piece, thief can not even if gate valve switch mode has been grasped yet Rotating opening gate valve is carried out to screw set, realizes that the second weight is antitheft.As it can be seen that the theft-proof gate valve tool that the utility model embodiment provides There are double anti-theft functions, can improve anti-theft effect, and then reduce oil and gas loss and environmental pollution caused by oil gas leaks.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the theft-proof gate valve overall schematic that the utility model embodiment provides；

Fig. 2 is the first gland left view in the theft-proof gate valve that the utility model embodiment provides；

Fig. 3 is the first gland top view in the theft-proof gate valve that the utility model embodiment provides；

Fig. 4 is screw set partial schematic diagram in the theft-proof gate valve that the utility model embodiment provides；

Fig. 5 is fixing piece front view in the theft-proof gate valve that the utility model embodiment provides.

Reference numeral represents respectively：

1- valve bodies, 2- flashboards, 3- leading screws,

The first glands of 4-, 401- linkage sections, 402- seal sections,

403- /V sections, 4031- mounting holes, 4032- protective cases,

5- screw sets, 501- unthreaded holes,

The second glands of 6-, 7- bearings,

8- fixing pieces, 801- spanner sections, 802- fixed sections, 803- inserted link sections, 804- sealing elements,

9- handwheels,

10- grease taps.

Specific embodiment

Unless otherwise defined, all technical terms used in the utility model embodiment are respectively provided with and those skilled in the art Normally understood identical meaning.To make the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached Figure is described in further detail the utility model embodiment.

The utility model embodiment provides a kind of theft-proof gate valve, and as shown in Figure 1, which includes valve body 1, sets The flashboard 2 inside valve body 1 is put, which further includes：Leading screw 3, the first gland 4, screw set 5, the second gland 6, bearing 7th, fixing piece 8.

Wherein, leading screw 3 is connected with flashboard 2, and outside valve body 1.

As shown in attached drawing 2 and attached drawing 3, the first gland 4 includes：Linkage section 401 connected in sequence, seal section 402 and /V Section 403, linkage section 401 is fixedly set on valve body 1, and the inner wall of seal section 402 is contacted with the outer wall dynamic sealing of leading screw 3.

Screw set 5 is sleeved on thread connecting mode on leading screw 3, and one end offsets with seal section 402；

Second gland, 6 fixing sleeve is arranged in /V section 403, and coordinates shape with /V section 403, seal section 402, screw set 5 Into bearing bore；

Bearing 7 is arranged in bearing bore, and is fixedly set on screw set 5；

Fixing piece 8 is detachably set, for screw set 5 to be fixed on /V section 403.

The operation principle of the theft-proof gate valve provided below the utility model embodiment illustrates：

When needing to open the theft-proof gate valve, rotational lead screw set 5, due to bearing 7 be arranged on the first gland 4, screw set 5, In the bearing bore that second gland 6 is formed, bearing 7 can not move left and right, and bearing 7 is fixedly set on screw set 5, so screw set 5 in rotation process without moving left and right, at this point, the leading screw 3 being threadedly coupled with screw set 5 with screw set 5 rotation occur It moves axially (can regard as and move left and right), the flashboard 2 being located in valve body 1 to be driven to move left and right, realizes opening for the theft-proof gate valve It closes.Also, by the way that bearing 7 is arranged between screw set 5 and /V section 403,7 inner ring of bearing is contacted with screw set 5, outer ring with The inner wall contact of /V section 403, the rotation for making screw set 5 are more effortless.The theft-proof gate valve that the utility model embodiment provides passes through The folding of flashboard 2 is realized in the rotation of screw set 5, and thief can not open security gate in the case where not knowing about operation principle Valve realizes that the first weight is antitheft.

Screw set 5 is fixed in /V section 403 by fixing piece 8, the rotation of screw set 5 can be limited.It does not remove solid When determining part 8, thief even if grasped the theft-proof gate valve on-off mode also can not to screw set 5 carry out rotating opening security gate Valve realizes that the second weight is antitheft.

As it can be seen that the theft-proof gate valve that the utility model embodiment provides, by setting screw set 5 and fixing piece 8, has dual Environmental pollution caused by anti-theft feature can improve anti-theft effect, and then reduction oil and gas loss and oil gas leak.

Each component of the theft-proof gate valve provided below the utility model embodiment and its effect are given illustrate respectively：

Valve body 1 is mounted on production wellhead, is the frame structure of theft-proof gate valve, and valve body 1 can be that an inside has cylindricality The hollow circular cylinder of cavity, cylindrical cavity correspond to the position of production wellhead, and flashboard 2 is arranged on the middle part of cylindrical cavity, blocks column Shape cavity, prevents oil gas from leaking, and the opening of annular cavity-like is provided on the side wall of valve body 1, and leading screw 3 is made to insert into the inner and flashboard 2 Connection, and for the connection of linkage section 401 and valve body 1.

In the utility model embodiment, the translation of flashboard 2 is driven by the translation in 3 rotation process of leading screw, for leading screw 3 How to be connected with flashboard 2, a kind of example is given below：

Leading screw 3 and 2 key connection of flashboard, when realizing that leading screw 3 is rotated and translated, 2, flashboard translates the movement relation not rotated.

When leading screw 3 and 2 key connection of flashboard, in the T-shaped key of the end set of flashboard 2, T that the end set of leading screw 3 is adapted Type groove, alternatively, in the T-shaped key of end set of leading screw 3, T-slot that the end set of flashboard 2 is adapted.In application, by T-shaped key It is inserted into T-slot, so set, only rotary motion is not transmitted in transmission translational motion, when so that the leading screw 3 is translated in rotation process, Flashboard 2 is only translated with leading screw 3, without rotation.

In the utility model embodiment, as shown in attached drawing 2 and attached drawing 3, the first gland 4 includes linkage section connected in sequence 401st, seal section 402, /V section 403.

As shown in Figure 1, linkage section 401 is fixedly set on valve body 1, the contact with 3 dynamic sealing of leading screw of seal section 402, In order to improve sealing effect, first sealing ring is set in the position that linkage section 401 is contacted with valve body 1, in seal section 402 and leading screw The position of 3 contacts sets the second sealing ring, prevents oil gas from leaking.

Linkage section 401 can be hollow circular cylinder, and internal diameter is identical with the outer diameter of 1 sidewall opening of valve body, and outer diameter is bigger than internal diameter 3-7cm, for example, can be 3cm, 5cm, 7cm etc., so set, linkage section 401 can be made to be in close contact with valve body 1, and Make linkage section 401 that there is certain mechanical strength, the first gland 4 can be fixed on the valve body 1.

Seal section 402 can be hexagonal prism, the cylindrical cavity identical with 3 diameter of leading screw is internally provided with, by right Seal section 402 carries out said structure restriction, on the one hand can improve the leakproofness of seal section 402 and leading screw 3, prevent outside oil gas It lets out, on the other hand, hexagonal prism is easy to be rotated by spanner, convenient for installation and removal of the first gland 4 etc..

/V section 403 can be hollow circular cylinder, and internal diameter is bigger 5-10cm than the outer diameter of screw set 5, for example, Ke Yiwei 5cm, 7cm, 8cm etc., the outer diameter of /V section 403 are bigger 3-5cm than internal diameter, for example, can be 3cm, 4cm, 5cm etc., so It sets, /V section 403 can be made to be formed to place the cavity of bearing 7 with seal section 402, screw set 5, and make /V section 403 With certain mechanical strength, limit function can be realized.

Second gland 6 can be hollow circular cylinder, and internal diameter is bigger 0-2cm than the outer diameter of screw set 5, for example, can be with 0cm (that is, internal diameter is identical with 5 outer diameter of screw set), 1cm, 2cm etc., outer diameter is identical with the internal diameter of /V section 403, so set, can be with The second gland 6 is made to cooperatively form bearing bore with seal section 402, /V section 403, screw set 5, bearing 7 is made to be located at nothing in bearing bore Method moves left and right, and limitation screw set 5 moves left and right.

Further, linkage section 401 is threadedly coupled with valve body 1, and /V section 403 is threadedly coupled with the second gland 6.Screw thread connects It connects and is easily installed and dismantles, convenient for repair, replacement to each component etc..

Screw set 5 is fixed in /V section 403 by fixing piece 8, how to realize fixation, and a kind of example is given below：

As shown in Figure 4, unthreaded hole 501 is provided on screw set 5, as shown in Figure 3, unthreaded hole 501 is corresponded in /V section 403 Position be provided with mounting hole 4031, fixing piece 8 is inserted into through mounting hole 4031 in unthreaded hole 501.So set, carrying out gate valve Fixing piece 8 is removed during folding, it is necessary to be inserted into fixing piece 8 when being fixed, and silk can be realized by the insertion and removal of fixing piece 8 Thick stick set 5 is detachably fixed with /V section 403.

Further, multiple unthreaded holes 501 are uniformly arranged in the circumferential direction on screw set 5, correspondingly, 4031 edge of multiple mounting holes Circumferentially it is uniformly arranged in /V section 403.

There are one only when unthreaded hole 501 and mounting hole 4031, when screw set 5 rotates every time, it is necessary to which light can just be made by turning over 360 ° Hole 501 is aligned with mounting hole 4031, is inserted into fixing piece 8.It, can be with by setting multiple corresponding unthreaded holes 501 and mounting hole 4031 There are more optional angles when screw set 5 being made to rotate every time, it is easy to operation.

In the utility model embodiment, as shown in Figure 2, the position that mounting hole 4031 is corresponded in /V section 403 is provided with Protective case 4032.So set, playing the role of protecting fixing piece 8, anti-theft effect is further improved.

Based on the setting of above-mentioned mounting hole 4031, protective case 4032, unthreaded hole 501, in order to improve consolidating when fixing piece 8 is inserted into Determine effect, following structure qualification is made to fixing piece 8：

As shown in Figure 5, fixing piece 8 includes spanner section 801 connected in sequence, fixed section 802 and inserted link section 803；

Spanner section 801 is located in protective case 4032, plays the role of protecting fixing piece 8；

Fixed section 802 is threadedly coupled with mounting hole 4031, convenient for the installation and removal of fixing piece 8；

Inserted link section 803 is inserted into unthreaded hole 501, for limiting the rotation of screw set 5；

Spanner section 801 and the junction of fixed section 802 are provided with sealing element 804, for sealing 801 protective case of spanner section Gap between 4032 makes spanner section 801 be in close contact with protective case 4032, and sealing element 804 can also be inserted into as fixing piece 8 The positioning of depth.

Further, as shown in Figure 5, spanner section 801 is seven prisms.Spanner section 801 is designed to seven prisms, is different from The shapes such as more typical hexagonal prisms, quadrangular, staff are equipped with the special spanner being adapted and remove the progress security gate of fixing piece 8 The folding of valve.In the case of no special spanner, even if thief has grasped the open-close ways of theft-proof gate valve, can not also it move Except fixing piece 8, anti-theft effect is improved.

As shown in Figure 1, the theft-proof gate valve that the utility model embodiment provides further includes handwheel 9, and handwheel 9 is fixedly set in On screw set 5, the rotation of screw set 5 is made to be more convenient, is laborsaving, improve the convenience that theft-proof gate valve uses.

Handwheel 9 and 5 key connection of screw set, and pass through nut and be fixed.Keyway is provided on handwheel 9 and screw set 5, is put down After key is pressed into keyway from one end of screw set 5, handwheel 9 can drive screw set 5 to rotate when rotating, and be set in one end of press-in flat key Nut is put, fixation is played, makes handwheel 9 that can not be removed from screw set 5.

As shown in Figure 1, in the utility model embodiment, grease tap 10, grease tap 10 and axis are provided in /V section 403 Hold chamber connection.Lubricating oil is added in into grease tap 10, the lubrication to bearing 7 and screw set 5 can be played, extend theft-proof gate valve Service life.

The above is only the preferred embodiment of the present invention, the protection domain being not intended to limit the utility model, Within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made should be included in this reality Within new protection domain.

Claims (10)

1. a kind of theft-proof gate valve including valve body (1), is arranged on the internal flashboard (2) of the valve body (1), which is characterized in that described Theft-proof gate valve further includes：Leading screw (3), the first gland (4), screw set (5), the second gland (6), bearing (7), fixing piece (8)；

The leading screw (3) is connected with the flashboard (2), and external positioned at the valve body (1)；

First gland (4) includes linkage section connected in sequence (401), seal section (402) and /V section (403), the company It connects section (401) to be fixedly set on the valve body (1), the inner wall of the seal section (402) and the outer wall of the leading screw (3) move close Feud contacts；

The screw set (5) is sleeved on thread connecting mode on the leading screw (3), and one end and the seal section (402) phase It supports；

Second gland (6) fixing sleeve be arranged on the /V section (403) in, and with the /V section (403), the seal section (402), the screw set (5) cooperatively forms bearing bore；

The bearing (7) is arranged in the bearing bore, and is fixedly set on the screw set (5)；

The fixing piece (8) is detachably set, for the screw set (5) to be fixed on the /V section (403).

2. theft-proof gate valve according to claim 1, which is characterized in that the leading screw (3) and the flashboard (2) key connection.

3. theft-proof gate valve according to claim 1, which is characterized in that the linkage section (401) and the valve body (1) screw thread Connection；

The /V section (403) is threadedly coupled with second gland (6).

4. theft-proof gate valve according to claim 1, which is characterized in that unthreaded hole (501) is provided on the screw set (5), The position that the unthreaded hole (501) is corresponded on the /V section (403) is provided with mounting hole (4031)；

The fixing piece (8) is inserted into the unthreaded hole (501) through the mounting hole (4031).

5. theft-proof gate valve according to claim 4, which is characterized in that multiple unthreaded holes (501) are uniformly arranged in the circumferential direction On the screw set (5), correspondingly, multiple mounting holes (4031) are uniformly arranged in the circumferential direction in the /V section (403) On.

6. theft-proof gate valve according to claim 4, which is characterized in that correspond to the mounting hole on the /V section (403) (4031) position is provided with protective case (4032), for accommodating the fixing piece (8).

7. theft-proof gate valve according to claim 6, which is characterized in that the fixing piece (8) includes spanner connected in sequence Section (801), fixed section (802) and inserted link section (803)；

The spanner section (801) is located in the protective case (4032)；

The fixed section (802) is threadedly coupled with the mounting hole (4031)；

The inserted link section (803) is inserted into the unthreaded hole (501)；

The spanner section (801) and the junction of the fixed section (802) are provided with sealing element (804), for sealing described pull Gap between means (801) and the protective case (4032).

8. theft-proof gate valve according to claim 7, which is characterized in that the spanner section (801) is seven prisms.

9. theft-proof gate valve according to claim 1, which is characterized in that the theft-proof gate valve further includes：Handwheel (9), it is described Handwheel (9) is fixedly set on the screw set (5).

10. theft-proof gate valve according to claim 1, which is characterized in that be provided with grease tap on the /V section (403) (10), the grease tap (10) connects with the bearing bore.