CN215673857U

CN215673857U - Special tool for emergency switch of PE ball valve for gas

Info

Publication number: CN215673857U
Application number: CN202121962915.2U
Authority: CN
Inventors: 谭冬华; 谭冬春; 谭岳兴; 谭嘉铭; 谭靖媛; 薛祖培; 李天成
Original assignee: Jiangte Technology Co ltd
Current assignee: Jiangte Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-28
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a special tool for a PE ball valve emergency switch for gas, which comprises: the power-assisted gearbox comprises a power-assisted gearbox component, a tool box shell, a supporting component and a connecting rod component, wherein the power-assisted gearbox component is arranged in the tool box shell, the supporting component is fixed below the tool box shell, the power-assisted gearbox component is connected with the connecting rod component, and the connecting rod component extends downwards out of the tool box shell. Its advantage does: labor saving, uniform operation rotation speed, good verticality of the operating rod and wide application range.

Description

Special tool for emergency switch of PE ball valve for gas

Technical Field

The utility model belongs to the field of pipeline equipment, and particularly relates to a special tool for a PE ball valve emergency switch for gas.

Background

The PE ball valve for the gas has the advantages of corrosion resistance, small pressure loss, convenience in installation and the like, is widely applied to town gas conveying pipeline systems, and becomes a key control functional part in the pipeline systems. However, at present, a gas company generally subcontracts the installation work of the PE ball valve to a qualified installation company, and the installation company puts efficiency at the head and cannot strictly comply with the construction technical specification of the ball valve, so that the PE ball valve often has the problems of no closing or opening, internal leakage and the like in the use process. When meeting this kind of problem emergency treatment, gas company generally adopts the dynamics of increasing to open or close, changes the ball valve after the valve rod damages. According to on-site observation, when the force switch is increased, an operation tool is simple, the operation mode is rough, the verticality and the rotation speed of an operation rod are not standardized, and the ball valve which can be successfully switched is damaged due to rough operation, so that small loss is caused. Therefore, a special tool which is labor-saving, light and convenient and does not damage the valve needs to be developed to solve the problem that the ball valve cannot be closed or opened. The existing switch tool is shown in fig. 1, and is in a t-shaped structure, and comprises an operating rod 22, a connecting rod 23 and a switch head 24. The horizontal direction is an operating rod 22 of the hollow galvanized steel pipe, the length is 0.5 to 0.8 meter, the vertical direction is a connecting rod 23 of the hollow galvanized steel pipe, the connecting rod connects a switch head 24 and the horizontal steel pipe, and the length is 0.7 to 0.9 meter. The inside of switch head 24 is square, and the size is unanimous with the operation cap size of ball valve, and switch head 24 cup joints on the operation cap of ball valve during the use. The operating cap is driven to rotate by the same speed rotation through the lever principle, so that the ball valve is opened or closed. The tool is suitable for normal, conventional on or off operation of a ball valve. However, when the ball valve is abnormal, the ball valve is difficult to open smoothly, the verticality and the switching speed uniformity are greatly influenced by human factors, and the operating cap or the ball valve is easily damaged. When the ball valve needs an emergency switch, obviously, the common switch tool can not meet the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a special tool for an emergency switch of a PE ball valve for gas, overcoming the defects and solving the problems.

In order to solve the technical problem, the utility model provides a special tool for a PE ball valve emergency switch for gas, which comprises: the power-assisted gearbox comprises a power-assisted gearbox component, a tool box shell, a supporting component and a connecting rod component, wherein the power-assisted gearbox component is arranged in the tool box shell, the supporting component is fixed below the tool box shell, the power-assisted gearbox component is connected with the connecting rod component, and the connecting rod component extends downwards out of the tool box shell.

As a preferable scheme of the tool special for the emergency switch of the PE ball valve for the gas, the power-assisted gear box assembly comprises a power-assisted gear box outer casing box, a driving gear assembly, a transition gear assembly and a driven gear assembly, wherein the driving gear assembly, the transition gear assembly and the driven gear assembly are all arranged in the power-assisted gear box outer casing box, the driving gear assembly comprises a first shaft body and a first gear, the first gear is sleeved on the first shaft body, the top of the first shaft body extends out of the power-assisted gear box outer casing box, the bottom of the first shaft body is connected with the bottom of the power-assisted gear box outer casing box through fastening screws of the driving gear assembly, the transition gear assembly comprises a second shaft body, a second gear and a third gear, and the second gear and the third gear are all sleeved on the second shaft body, the second gear is located above the third gear, the top of the second shaft body is connected with the top wall of the power-assisted gear box outer shell box, the bottom of the second shaft body is connected with the bottom of the power-assisted gear box outer shell box, the driven gear assembly comprises a third shaft body and a fourth gear, the fourth gear is sleeved on the third shaft body, the top of the third shaft body is connected with the top wall of the power-assisted gear box outer shell box, the bottom of the third shaft body is connected with the connecting rod assembly in a sleeved and inserted mode, the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear.

As a preferable scheme of the tool dedicated for the emergency switch of the PE ball valve for gas use, the number of teeth of the first gear is 12, the number of teeth of the second gear is 36, the number of teeth of the third gear is 16, and the number of teeth of the fourth gear is 48.

As a preferable scheme of the special tool for the PE ball valve emergency switch for the gas, a handle is connected to the upper portion of a shell box of the power-assisted gear box.

As a preferable scheme of the tool special for the emergency switch of the PE ball valve for gas, the support assembly comprises a plurality of support legs, the support legs are arranged at the bottom of the tool box housing, the support legs are connected with the tool box housing through a first hinge, the support legs are strip-shaped steel plates, and a first waist-shaped groove is arranged in the middle of the support legs.

As a preferable scheme of the tool special for the emergency switch of the PE ball valve for gas, the support assembly further comprises a plurality of sliding legs, each support leg is provided with one sliding leg correspondingly, and the sliding legs are locked with the first kidney-shaped groove through screws.

As a preferable scheme of the tool special for the PE ball valve emergency switch for the gas, the tool special for the PE ball valve emergency switch for the gas further comprises a reinforcing plate, and the supporting legs are connected with the reinforcing plate through second hinges.

As a preferred scheme of the tool special for the emergency switch of the PE ball valve for gas, the connecting rod assembly includes an upper connecting rod, a lower connecting rod, an upper sliding sleeve and a lower sliding sleeve, the upper connecting rod is fixedly connected with the upper sliding sleeve through a first screw, the lower connecting rod is fixedly connected with the lower sliding sleeve through a second screw, the upper sliding sleeve and the lower sliding sleeve are respectively provided with a through-hole waist-shaped groove, the upper sliding sleeve is inserted into the lower sliding sleeve, and the through-hole waist-shaped groove of the upper sliding sleeve is fastened with the through-hole waist-shaped groove of the lower sliding sleeve through a screw.

As a preferred scheme of the tool special for the emergency switch of the PE ball valve for gas, the top end of the upper connecting rod extends into the power-assisted gear box housing box and is connected with the bottom end of the driven gear assembly, and the lower port of the lower connecting rod is used for being sleeved on an operation cap of the ball valve.

As a preferred scheme of the special tool for the emergency switch of the PE ball valve for the gas, a square hole is formed in the lower port of the lower connecting rod, and the size of the square hole is 50mm multiplied by 50mm or 75mm multiplied by 75 mm.

Compared with the prior art, the special tool for the emergency switch of the PE ball valve for the gas has the advantages that:

1) the opening or closing of the ball valve is labor-saving and safe;

2) the ball valve is opened or closed at a constant speed without impact;

3) the ball valve which is difficult to open or close by common tools can be successfully opened or closed, the ball valve is not damaged, a valve well does not need to be excavated for replacing the ball valve, and the loss of ten thousand yuan can be reduced by emergency use each time;

4) the application range is wide.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein the content of the first and second substances,

FIG. 1 is a schematic diagram of a conventional switch tool of the prior art;

fig. 2 is a schematic structural diagram of the special tool for the emergency switch of the PE ball valve for gas of the utility model.

Wherein: the power-assisted gearbox comprises a handle 1, a driving gear assembly 2, a transition gear assembly 3, a driven gear assembly 4, a power-assisted gearbox shell 5, a tool box shell 6, supporting legs 7, an upper sliding sleeve 8, a lower sliding sleeve 9, a lower connecting rod 10, a second screw 11, a perforated waist-shaped groove 12, a first screw 13, an upper connecting rod 14, a first hinge 15, a reinforcing plate 16, a driving gear assembly fastening screw 17, a first sealing ring 18, a second sealing ring 19, a second hinge 20 and a sliding foot 21.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments in order to make the above objects, features and advantages more apparent and understandable.

First, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Next, the present invention is described in detail by using a schematic structural diagram, and for convenience of explanation, when the embodiment of the present invention is described in detail, a schematic diagram illustrating a tool dedicated to an emergency switch of a PE ball valve for gas use is not partially enlarged according to a general scale, and the schematic diagram is only an example, and should not limit the scope of the present invention. In addition, the actual fabrication process should include three-dimensional space of length, width and depth.

Example 1

Referring to fig. 2, fig. 2 is a schematic structural diagram of a special tool for a PE ball valve emergency switch for gas of the present invention. As shown in fig. 2, the PE ball valve emergency switch special tool for gas includes: the special tool is characterized in that the special tool is combined, a handle 1 is fixed above the power-assisted gear box component and used for lifting the special tool, the power-assisted gear box component comprises a power-assisted gear box outer box 5 and 3 gear assemblies located in the power-assisted gear box outer box 5, a driving gear assembly 2, a transition gear assembly 3 and a driven gear assembly 4 are sequentially arranged in the power-assisted gear box outer box 5, and each gear assembly is fixed by a shaft fixing hole in the power-assisted gear box outer box 5. The module of the 3 sets of gear assemblies is 3, the driving gear assembly 2 has 1 first gear (not shown) with 12 teeth, the transition gear assembly 3 has 2 gears with 36 second gears (not shown) and 16 third gears (not shown), and the driven gear assembly 4 has 48 fourth gears (not shown). The reduction ratio is 12/36 × 16/48=1:9, the labor-saving ratio is 1:9, and compared with the existing simple operation tool, the operation force of 8/9 is reduced. The power-assisted gear box outer case 5 is divided into an upper part and a lower part, the upper part and the lower part are closed through screw tensioning, a waterproof rubber sealing ring is designed on a closing surface, a waterproof rubber first sealing ring 18 is designed at the joint of the driving gear assembly 2 extending out of the power-assisted gear box outer case 5 and an axle fixing hole on the power-assisted gear box outer case 5, and a waterproof rubber second sealing ring 19 is designed at the joint of the driven gear assembly 4 and the axle fixing hole on the power-assisted gear box outer case 5.

The rotating speed of the operation is in a constant speed scheme: firstly, shaft fixing holes of all gear assemblies are designed on the inner surface of a power-assisted gear box outer shell 5, the center distance of the shaft fixing holes is reasonable in design, and the meshing surface of gears is ensured to be proper. When the driving gear is subjected to constant speed rotation at a speed v, the driven gear rotates at a constant speed of 1/9v, and the driven gear assembly 4 drives the valve rod and the valve core of the ball valve to rotate. Even if v has small change delta v, the speed change of the driven gear is only 1/9 delta v, and therefore the purpose of opening the ball valve at a constant speed is achieved. Compare current simple operation instrument can rotate at the uniform velocity more and open or close the ball valve.

Referring to fig. 2, as shown in fig. 2, the tool box housing 6 is a welded part, the power-assisted gear box housing 5 is embedded in the tool box housing 6, the bottom of the tool box housing 6 is provided with 3 first hinges 15 for fixing the adjustable length supporting legs 7, and two ends of the tool box housing 6 are respectively provided with a second hinge 20 for fixing the adjustable length supporting legs 7. The supporting leg 7 with adjustable length is a strip steel plate, a waist-shaped groove machined in the middle is provided, and the outer end is provided with a sliding leg 21 which slides in the groove and can be locked by a screw at a proper position.

The use method of the structure comprises the following steps: firstly, the positions of supporting feet 7 on two sides of a tool box shell 6 are adjusted to the maximum length, and the special tool is suspended above a ball valve wellhead. The lower end of the lower connecting rod 10 is aligned with and sleeved on an operating cap of a ball valve to be opened underground, so that the vertical center of a special tool and the ball valve to be opened can be aligned. And then adjusting the position of the supporting leg 7 to be tightly attached to the excircle of the wellhead, and fixing the supporting leg 7 by a locking screw. Because three-point support is adopted, the special tool has better stability and guaranteed verticality.

Referring to fig. 2, as shown in fig. 2, the length-adjustable connecting rod assembly is vertically connected to the driven gear assembly 4 in the power-assisted gear box housing 5 below the power-assisted gear box housing 5, the connecting rod assembly is composed of 4 parts, i.e., an upper connecting rod 14, a lower connecting rod 10, an upper sliding sleeve 8 and a lower sliding sleeve 9, the upper connecting rod 14 is fixed to the upper sliding sleeve 8 by four first screws 13, the lower connecting rod 10 is fixed to the lower sliding sleeve 9 by four second screws 11, the upper and lower sliding sleeves have 4 through-hole kidney-shaped slots 12 which are uniformly distributed and have adjustable lengths, and each through-hole kidney-shaped slot 12 is fastened by one screw. The lower port of the lower connecting rod 10 is sleeved on an operation cap of the ball valve to be opened or closed. The lower port of the lower connecting rod 10 has two selectable sizes of a square hole of 50 × 50 and a square hole of 75 × 75. The adjustable range of the connecting rod is 0 to 300 millimeters, and the adjustable supporting foot 7 is adapted to the ball valve wellhead outer diameter range and is 600 to 1500 millimeters.

The principle of the structure is as follows: a connecting rod with adjustable length is designed between the power-assisted gear box outer shell box 5 and the opened ball valve operating cap, the upper end of the upper connecting rod 14 is connected with the lower end of the driven gear assembly 4 in the gear power-assisted gear box, and the lower port of the lower connecting rod 10 is sleeved with the opened ball valve operating cap, so that the power-assisted gear box can adapt to ball valve wells with various depths. In addition, the supporting legs 7 of the special tool can be adjusted in length to adapt to ball valve wells with various calibers. The lower end of the lower connecting rod 10 is matched with the operating cap of the ball valve, and an inner square anti-slip structure is designed. The lower end of the lower connecting rod 10 is provided with an inner square hole with 2 sizes (the national standard is uniformly specified) so as to be suitable for the styles of a plurality of ball valve manufacturing enterprises. Therefore, the special tool has a wide application range.

The parts of the special tool for the PE ball valve emergency switch for the gas comprise but are not limited to the types mentioned above.

The use method of the structure is as follows:

generally, the special tool is divided into 3 parts for carrying, one part is a connecting rod assembly with adjustable length, one part is a combination of a tool box shell 6 and a power-assisted gear box shell 5, and the other part is 3 supporting feet 7 with adjustable length.

When the ball valve needs to be used, the lower end of the lower connecting rod 10 of the connecting rod component with adjustable length is aligned with and sleeved on an operation cap of a ball valve to be opened underground, and a special tool and the vertical center of the ball valve to be opened are aligned.

And assembling 3 supporting legs 7 with adjustable length to the bottom of the tool box shell 6, installing the two hinge hole distances on the right side of the tool box shell 6 with a slightly larger hinge hole distance, installing the hinge hole distance on the left side of the tool box shell 6 with a smaller hinge hole distance, aligning the hole on the supporting leg 7 and the hole on the tool box shell 6, and installing the same type of screw fixing tool box shell 6 and the supporting leg 7 respectively after keeping the supporting leg 7 horizontal.

And (3) adjusting the positions of the supporting feet 7 at the two sides of the special tool to the maximum length, and suspending the special tool above the wellhead of the ball valve. Vertically aligning the upper end of the upper connecting rod 14 of the adjustable length connecting rod assembly to the lower end of the driven gear assembly 4, and squarely aligning and sleeving the lower end of the driven gear assembly 4. And then adjusting the position of the supporting leg 7 to be tightly attached to the excircle of the wellhead, and fixing the supporting leg 7 by a locking screw. Completing the connection between the special tool and the ball valve to be opened or closed.

The upper end of the drive gear assembly 2 of the special tool is rotated at a uniform speed v with a monkey wrench, which upper end is of square design. The wrench is rotated clockwise for the closing operation, and the wrench is rotated counterclockwise for the opening operation. The driving gear assembly 2 drives the transition gear assembly 3 to rotate at 1/3v, the transition gear assembly 3 drives the driven gear assembly 4 to rotate at 1/3 x 1/3v, the lower end of the driven gear assembly 4 drives the connecting rod assembly to rotate at the same speed of 1/9v, the connecting rod assembly drives the operating cap of the ball valve to rotate at 1/9v, the operating cap drives the valve core of the ball valve to rotate at 1/9v, and when a red indicating arrow at the top of the upper end of the driven gear assembly 4 points to an opening or closing limit position on the power-assisted gear box shell 5, the rotating operation is stopped, so that constant-speed opening or closing is achieved. The main principle is gear drive speed reduction principle, and the length of the central point of adjustable specialized tool and connecting rod in the course of the work is used for adapting to various valve well head diameters and depths, ensures the straightness that hangs down of operation process, can successfully accomplish the emergent of opening or closing that ordinary instrument can't open or close.

It should be understood by those skilled in the art that one of the features or objects of the present invention is to: the utility model relates to a special tool for a PE ball valve emergency switch for gas, which has the advantages that: labor saving, uniform operation rotation speed, good verticality of the operating rod and wide application range.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a PE ball valve emergency switch specialized tool for gas which characterized in that includes: helping hand gear case subassembly, toolbox casing (6), supporting component and connecting rod subassembly, helping hand gear case subassembly sets up in toolbox casing (6), the supporting component is fixed the below of toolbox casing (6), helping hand gear case subassembly is connected the connecting rod subassembly, the connecting rod subassembly stretches out downwards toolbox casing (6).

2. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 1, wherein: the power-assisted gear box assembly comprises a power-assisted gear box outer shell box (5), a driving gear assembly (2), a transition gear assembly (3) and a driven gear assembly (4), wherein the driving gear assembly (2), the transition gear assembly (3) and the driven gear assembly (4) are all arranged in the power-assisted gear box outer shell box (5), the driving gear assembly (2) comprises a first shaft body and a first gear, the first gear is sleeved on the first shaft body, the top of the first shaft body extends out of the power-assisted gear box outer shell box (5), the bottom of the first shaft body is connected with the bottom of the power-assisted gear box outer shell box (5) through a driving gear assembly fastening screw (17), the transition gear assembly (3) comprises a second shaft body, a second gear and a third gear, and the second gear and the third gear are all sleeved on the second shaft body, the second gear is located above the third gear, the top of the second shaft body is connected with the top wall of the power-assisted gear box outer shell box (5), the bottom of the second shaft body is connected with the bottom of the power-assisted gear box outer shell box (5), the driven gear assembly (4) comprises a third shaft body and a fourth gear, the fourth gear is sleeved on the third shaft body, the top of the third shaft body is connected with the top wall of the power-assisted gear box outer shell box (5), the bottom of the third shaft body is sleeved and connected with the connecting rod assembly in an inserting mode, the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear.

3. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 2, wherein: the number of teeth of the first gear is 12, the number of teeth of the second gear is 36, the number of teeth of the third gear is 16, and the number of teeth of the fourth gear is 48.

4. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 2, wherein: a handle (1) is connected above the power-assisted gear box outer shell box (5).

5. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 1, wherein: the supporting component comprises a plurality of supporting legs (7), the supporting legs (7) are arranged at the bottom of the tool box shell (6), the supporting legs (7) are connected with the tool box shell (6) through first hinges (15), the supporting legs (7) are long-strip-shaped steel plates, and first waist-shaped grooves are formed in the middles of the supporting legs (7).

6. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 5, wherein: the supporting assembly further comprises a plurality of sliding feet (21), each supporting foot (7) is correspondingly provided with one sliding foot (21), and the sliding feet (21) are locked with the first waist-shaped grooves through screws.

7. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 6, wherein: the special tool for the PE ball valve emergency switch for the gas further comprises a reinforcing plate (16), and the supporting legs (7) are connected with the reinforcing plate (16) through second hinges (20).

8. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 2, wherein: connecting rod subassembly includes connecting rod (14), lower connecting rod (10), goes up sliding sleeve (8) and lower sliding sleeve (9), go up connecting rod (14) through first screw (13) with go up sliding sleeve (8) fixed connection, down connecting rod (10) through second screw (11) with lower sliding sleeve (9) fixed connection, be equipped with respectively on going up sliding sleeve (8) and lower sliding sleeve (9) and pass hole waist type groove (12), go up sliding sleeve (8) and insert in lower sliding sleeve (9), go up the perforation waist type groove (12) of sliding sleeve (8) with lower sliding sleeve (9) pass through hole waist type groove (12) and pass through the screw fastening.

9. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 8, wherein: the top end of the upper connecting rod (14) extends into the power-assisted gear box outer shell box (5) and is connected with the bottom end of the driven gear assembly (4), and the lower port of the lower connecting rod (10) is used for being sleeved on an operation cap of the ball valve.

10. The special tool for the emergency switch of the PE ball valve for gas as claimed in claim 9, wherein: the lower port of the lower connecting rod (10) is provided with a square hole, and the size of the square hole is 50mm multiplied by 50mm or 75mm multiplied by 75 mm.