Wrench for cock switch of needle valve of pressure gauge

Abstract

The utility model discloses a pressure gauge needle valve cock switch wrench, and relates to the technical field of cock wrenches, the pressure gauge needle valve cock switch wrench comprises a cylindrical wrench, the bottom of the cylindrical wrench is provided with tooth grooves in an annular array, and the top of the cylindrical wrench is fixedly provided with a connecting shaft. According to the utility model, the cylindrical wrench, the connecting shaft, the guide seat, the rotating shaft, the handle and the driving piece are arranged, after the cylindrical wrench is sleeved on the surface of the cock switch, the handle is operated to rotate, so that the cock switch can be conveniently opened and closed, and the cylindrical wrench is not only suitable for opening and closing a wheel disc type cock switch, but also suitable for opening and closing the cock switch. Meanwhile, the device is also suitable for opening and closing a handle type cock switch, the situation that the cock valve cannot be opened and closed due to corrosion and clamping or the valve switch is damaged by a worker through a large tool is avoided, and the handles on the two sides can be folded, so that the device is convenient to carry by the worker and easy to store.

Description

Technical Field

[0001] This utility model relates to the field of cock wrench technology, specifically a cock switch wrench for a pressure gauge needle valve. Background Technology

[0002] A pressure gauge needle valve mainly consists of a valve body, valve stem, valve disc, packing, gasket, handwheel, and other components. Its valve core is a sharp cone that inserts into the valve seat like a needle, hence its name. The position of the valve disc is adjusted by rotating the valve stem, thereby changing the flow area and resistance of the fluid, achieving pressure regulation and fluid flow control. When the valve disc is fully closed, the fluid passage is cut off; when the valve disc is gradually opened, fluid can pass through the valve port, and the degree of opening determines the flow rate.

[0003] In natural gas well sites, equipment and process pipelines are typically exposed to the elements. The cocks used to install pressure gauges on these systems are often damaged by rain, snow, or corrosion, especially since some pressure gauges are not frequently used. During routine pressure gauge replacement, the cock switches frequently fail to open properly or become very difficult to open due to corrosion or freezing. Utility Model Content

[0004] This utility model provides a pressure gauge needle valve cock switch wrench, which has the advantages of being easy to open a rusted cock switch and easy to fold and carry, so as to solve the problem that the cock valve is stuck due to rust and cannot be opened or closed, or that the valve switch handwheel is damaged by personnel using large tools.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure gauge needle valve cock switch wrench, comprising a cylindrical wrench, wherein the bottom of the cylindrical wrench is provided with toothed grooves in a circular array, the top of the cylindrical wrench is fixed with a connecting shaft, and both sides of the connecting shaft are provided with guide seats fixed to the surface of the cylindrical wrench. Two rotating shafts are rotatably connected between the two guide seats through bearings, and handles are fixed to the surface of each rotating shaft. The surface of the connecting shaft is provided with a driving component for driving the two handles to rotate and fold.

[0006] As a preferred technical solution of this utility model, the driving component includes a hollow worm gear that is rotatably connected to the surface of the connecting shaft. A handwheel is fixed to the top of the hollow worm gear, and worm wheels are fixed to the surface of the rotating shaft. The worm wheels are meshed with the hollow worm gear.

[0007] As a preferred embodiment of this utility model, extension rods are threadedly connected to the threaded holes at the top of the two handles, and anti-slip knobs are fixed to the top of the extension rods.

[0008] As a preferred embodiment of this utility model, the surface of the cylindrical wrench is fixed with reinforcing ribs, and the number of reinforcing ribs is eight.

[0009] As a preferred embodiment of this utility model, the surface of the handle is fixed with a protective sleeve, and the protective sleeve is made of rubber.

[0010] As a preferred embodiment of this utility model, the surface of the cylindrical wrench is provided with a corrosion-resistant insulating varnish layer.

[0011] As a preferred embodiment of this utility model, a guide plate is fixed to the top of the two guide seats, and the hollow worm gear is rotatably connected to the guide plate through a bearing.

[0012] Compared with the prior art, this utility model provides a pressure gauge needle valve cock switch wrench, which has the following beneficial effects:

[0013] 1. This pressure gauge needle valve cock switch wrench, by setting up a cylindrical wrench, connecting shaft, guide seat, rotating shaft, handle and driving component, allows for convenient opening and closing of the cock switch by placing the cylindrical wrench on the surface of the cock switch and rotating the operating handle. This cylindrical wrench is not only suitable for opening and closing wheel-type cock switches, but also for opening and closing handle-type cock switches, avoiding situations where the cock valve is stuck due to rust and cannot be opened or closed, or where personnel damage the valve switch by using large tools. In addition, both handles can be folded, making it convenient for personnel to carry and easy to store.

[0014] 2. This pressure gauge needle valve cock switch wrench, by setting an extension rod and an anti-slip knob, utilizes the lever principle that the longer the lever arm, the greater the torque generated. Under the same applied force, a larger torque can be generated, allowing the operator to complete the opening and closing of the cock switch with relatively less force, thus improving the convenience of operating the cock switch. Attached Figure Description

[0015] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cylindrical wrench structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the drive component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the handle structure of this utility model.

[0020] In the diagram: 1. Cylindrical wrench; 2. Connecting shaft; 3. Guide seat; 4. Rotating shaft; 5. Handle; 6. Driving component; 601. Hollow worm gear; 602. Handwheel; 603. Worm gear; 7. Extension rod; 8. Anti-slip knob; 9. Reinforcing rib; 10. Protective sleeve; 11. Corrosion-resistant insulating varnish layer; 12. Guide plate; 13. Gear groove. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 This utility model discloses a pressure gauge needle valve cock switch wrench, including a cylindrical wrench 1. The bottom of the cylindrical wrench 1 has a toothed groove 13 arranged in a ring array. The top of the cylindrical wrench 1 is fixed with a connecting shaft 2. Guide seats 3 are fixed to the surface of the cylindrical wrench 1 on both sides of the connecting shaft 2. Two rotating shafts 4 are rotatably connected between the two guide seats 3 through bearings. Handles 5 are fixed to the surface of the rotating shafts 4. The surface of the connecting shaft 2 is provided with a driving component 6 for driving the two handles 5 to rotate and fold.

[0023] Specifically, the drive component 6 includes a hollow worm gear 601 that is rotatably connected to the surface of the connecting shaft 2. A handwheel 602 is fixed to the top of the hollow worm gear 601. Worm wheels 603 are fixed to the surface of the rotating shaft 4. The worm wheels 603 are meshed with the hollow worm gear 601.

[0024] In this embodiment, during use, the handwheel 602 is rotated, which drives the hollow worm gear 601 to rotate. The rotation of the hollow worm gear 601 drives the two worm wheels 603 to rotate synchronously in opposite directions, thus enabling the two handles 5 to be flipped and folded synchronously.

[0025] Specifically, extension rods 7 are threaded into the threaded holes at the top of both handles 5, and anti-slip knobs 8 are fixed to the top of each extension rod 7.

[0026] In this embodiment, the extension rod 7 is used so that a greater torque can be generated when the same force is applied to the handle 5, making it easier to turn the cock switch. The extension rod 7 is threaded inside the handle 5 and can be rotated back when not in use to reduce its length. The anti-slip knob 8 increases the friction with the hand when the extension rod 7 is rotated to extend or retract, thus achieving an anti-slip effect.

[0027] Specifically, the surface of the cylindrical wrench 1 is fixed with reinforcing ribs 9, and the number of reinforcing ribs 9 is eight.

[0028] In this embodiment, by using reinforcing ribs 9, the deformation resistance of the bottom tooth groove 13 of the cylindrical wrench 1 can be enhanced, thus preventing deformation of the tooth groove 13 of the cylindrical wrench 1 during long-term use.

[0029] Specifically, the surface of the handle 5 is fixed with a protective cover 10, which is made of rubber.

[0030] In this implementation scheme, the protective sleeve 10 makes it more comfortable for the operator's hand to operate the handle 5 to tighten or loosen the cock switch. The protective sleeve 10 is made of non-slip rubber, which increases the friction between the hand and the handle 5, thereby achieving a non-slip effect and preventing the operator from being injured due to hand slippage during rotation.

[0031] Specifically, the surface of the cylindrical wrench 1 is provided with a corrosion-resistant insulating varnish layer 11.

[0032] In this embodiment, the corrosion-resistant insulating varnish layer 11 is an epoxy insulating varnish, which uses epoxy resin as the main film-forming substance. This insulating varnish has good adhesion, chemical corrosion resistance and insulation properties, and has good resistance to chemicals such as acids, alkalis and salts. It can be used in harsh chemical environments, thereby avoiding corrosion on its surface and extending the service life of the cylindrical wrench 1.

[0033] Specifically, guide plates 12 are fixed to the top of the two guide seats 3, and the hollow worm gear 601 is rotatably connected to the guide plates 12 through bearings.

[0034] In this embodiment, the guide plate 12 can provide auxiliary guidance and support for the hollow worm 601, so as to make the hollow worm 601 stable during rotation.

[0035] The working principle and usage process of this utility model are as follows: During use, the driving component 6 drives the two rotating shafts 4 to rotate synchronously in opposite directions. This rotation causes the two handles 5 to open outwards. After opening, the operator can engage the toothed groove 13 of the cylindrical wrench 1 onto the surface of the ring-shaped cock switch. For the handle-type cock switch, the handle-style cock switch can be engaged inside the two corresponding toothed grooves 13. Then, the operator can rotate the handle 5 to engage the cock switch. During operation, the extension rod 7 on one side or both sides can be extended as needed. The extension rod 7 on the side extends simultaneously, increasing the length of the handle 5. According to the lever principle, the longer the lever arm, the greater the torque. Therefore, under the same force, a greater torque can be generated, making it easier to turn the cock switch. After use, the two extension rods 7 can be rotated back to their original positions. Then, the drive component 6 can be operated to reverse. Similarly, after the drive component 6 rotates, it will drive the two rotating shafts 4 to rotate synchronously. After the two rotating shafts 4 rotate, they can drive the two handles 5 to fold inward, reducing the overall length of the cylindrical wrench 1 and making it easier for staff to carry during maintenance.

[0036] In summary, this pressure gauge needle valve cock switch wrench solves the problems of cock valves being stuck due to rust and unable to be opened or closed, or the valve switch handwheel being damaged by personnel using large tools.

[0037] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] 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 pressure gauge needle valve cock switch wrench, comprising a cylindrical wrench (1), characterized in that: The bottom of the cylindrical wrench (1) is provided with toothed grooves (13) in a circular array. The top of the cylindrical wrench (1) is fixed with a connecting shaft (2). Both sides of the connecting shaft (2) are provided with guide seats (3) fixed to the surface of the cylindrical wrench (1). The two guide seats (3) are rotatably connected to two rotating shafts (4) through bearings. The surface of each rotating shaft (4) is fixed with a handle (5). The surface of the connecting shaft (2) is provided with a driving component (6) for driving the two handles (5) to rotate and fold.

2. A pressure gauge needle valve cock switch wrench according to claim 1, characterized in that: The driving component (6) includes a hollow worm (601) that is rotatably connected to the surface of the connecting shaft (2). A handwheel (602) is fixed to the top of the hollow worm (601). Worm wheels (603) are fixed to the surface of the rotating shaft (4). The worm wheels (603) are meshed with the hollow worm (601).

3. A pressure gauge needle valve cock switch wrench according to claim 1, characterized in that: Both handles (5) have threaded holes at the top, and extension rods (7) are threaded inside each extension rod (7). Anti-slip knobs (8) are fixed to the top of each extension rod (7).

4. A pressure gauge needle valve cock switch wrench according to claim 1, characterized in that: The surface of the cylindrical wrench (1) is fixed with reinforcing ribs (9), and the number of reinforcing ribs (9) is eight.

5. A pressure gauge needle valve cock switch wrench according to claim 1, characterized in that: The surface of each handle (5) is fixed with a protective sleeve (10), and the protective sleeve (10) is made of rubber.

6. A pressure gauge needle valve cock switch wrench according to claim 1, characterized in that: The surface of the cylindrical wrench (1) is provided with a corrosion-resistant insulating varnish layer (11).

7. A pressure gauge needle valve cock switch wrench according to claim 2, characterized in that: Guide plates (12) are fixed to the top of the two guide seats (3), and the hollow worm (601) is rotatably connected to the guide plates (12) through bearings.

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