Portable labor-saving wrench for manual valve operation

Abstract

The utility model discloses a portable labor-saving wrench for manual valve operation, which belongs to the technical field of valve tools and comprises a handle section, a first limit section and a second limit section. The handle section is telescopically connected with one end of the first limiting section, and the other end of the first limiting section is telescopically connected with the second limiting section; and the first limiting section and the second limiting section are respectively clamped on the manual valve. The portable labor-saving wrench for operating the manual valve can effectively solve the problems that in the prior art, dependence on manual operation of the manual valve is high, time and labor are wasted during operation, and manual valves at special positions and limited operation space are very inconvenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve tools, and specifically relates to a portable labor-saving wrench for manual valve operation. Background Art

[0002] In large hydropower stations, each system is equipped with a large number of manual valves, which play a vital role in the daily operation and maintenance of the power station. However, most manual valves are still operated by manually rotating the handwheel to open and close the valve. This operation method has the following main problems: strong dependence on manpower: the opening and closing of the valve is completely dependent on manual operation, which not only requires a large amount of human resources, but also the operation efficiency is greatly affected by human factors; time-consuming and laborious operation: due to the long handwheel stroke and large torque of the manual valve, the operator needs to consume a lot of physical strength and time when opening and closing the valve, especially when frequent operation or operation of multiple valves is required, the work intensity is high and the efficiency is low; inconvenient operation: due to the special installation location, limited working space, rust and aging of some manual valves, the operator faces many difficulties when opening and closing the valve, and even has safety hazards.

[0003] Therefore, the utility model aims to provide a portable labor-saving wrench to solve the problems existing in the manual valve operation in large hydropower stations, improve the operating efficiency and safety, and reduce the labor intensity of operators. Utility Model Content

[0004] The purpose of the utility model is to provide a portable labor-saving wrench for manual valve operation to solve the problems in the prior art that the operation of manual valves is highly dependent on manpower, the operation is time-consuming and labor-intensive, and the operation of some manual valves in special locations and with limited working space is very inconvenient. In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A portable labor-saving wrench for manual valve operation comprises a handle section, a first limit section and a second limit section; the handle section is telescopically connected to one end of the first limit section, and the other end of the first limit section is telescopically connected to the second limit section; the first limit section and the second limit section are respectively clamped on the manual valve.

[0006] Furthermore, the first limiting section includes a connecting rod; blind holes are provided at both ends of the connecting rod; a plurality of threaded holes connected to the blind holes are provided on both ends of the connecting rod; the handle section and the second limiting section respectively cooperate with the blind holes at both ends of the connecting rod, and are fixed by fixing bolts and threaded holes.

[0007] Furthermore, a connecting rod is provided at the center of the connecting rod, and its direction is perpendicular to the connecting rod; a rotating part is provided on the connecting rod, so that the connecting rod can rotate relative to the connecting rod; a first limiting part is provided below the connecting rod for cooperating with the manual valve.

[0008] Furthermore, the connecting rod is provided with a through hole parallel to the connecting rod; the first limiting part includes a fulcrum base and a three-point frame; the fulcrum base is provided with a base fixing hole; after the base fixing hole is aligned with the through hole on the connecting rod, it is locked by fixing bolts; the three-point frame is arranged below the fulcrum base for cooperating with the manual valve.

[0009] Furthermore, the second limiting section includes a second telescopic section and a second limiting portion; one end of the second telescopic section is connected to the blind hole at one end of the connecting rod and is fixed by a fixing bolt and a threaded hole; the other end of the second telescopic section is connected to the second limiting portion, and the second limiting portion cooperates with the manual valve.

[0010] Furthermore, the rotating part includes a bearing seat and a bearing installed in the bearing seat; the bearing seat is fixed at the inner center of the connecting rod; and the connecting rod is fixedly connected to the bearing.

[0011] Furthermore, the handle section includes a handle and a first telescopic section; one end of the first telescopic section is connected to a blind hole at one end of the connecting rod and is fixed by a fixing bolt and a threaded hole; the other end of the first telescopic section is connected to the handle.

[0012] Furthermore, the second limiting portion is in an "F" shape.

[0013] Furthermore, the fixing bolt is a butterfly bolt.

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

[0015] 1. The portable labor-saving wrench for manual valve operation of the utility model can adjust the operating force arm through the telescopic adjustment between the first telescopic part and the connecting rod, so that the operator can save more effort when unlocking or locking the manual valve; at the same time, it can facilitate the unlocking and locking operations of the manual valve located in a limited operating space. The telescopic adjustment between the second telescopic rod and the connecting rod can be suitable for the cooperation of different manual valve structures, with wide adaptability and more labor-saving operation.

[0016] 2. The utility model is a portable labor-saving wrench for manual valve operation. The first limit part is rotatably connected to the connecting rod through a bearing. When you want to directly apply force in the opposite direction while operating the manual valve, you can directly rotate the wrench to rotate the engagement position of the "F"-shaped bayonet of the second limit part and the outer edge to a suitable position without removing the entire wrench. This can save the operator's time in re-engaging the three-point frame and the manual valve, and also reduce the operator's burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] In the attached figure: 1. manual valve; 2. connecting rod; 3. blind hole; 4. fixing bolt; 5. connecting rod; 6. through hole; 7. fulcrum base; 8. three-point support; 9. base fixing hole; 10. second telescopic section; 11. bearing; 12. handle; 13. first telescopic section; 14. support rod. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The components of the embodiments of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0020] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when used, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example:

[0022] See attached Figure 1 The portable labor-saving wrench for operating a manual valve 1 provided in this embodiment includes a handle section, a first limit section and a second limit section connected in sequence. The handle section and the second limit section can be adjusted to change the distance relative to the first limit section, thereby changing the length of the overall wrench. The adjustment of the distance of the handle section can change the torque, making it easier to apply force. At the same time, it can also be adjusted to be suitable for the operation of the manual valve 1 in a limited space. The adjustment of the distance of the second limit section can be adapted to the cooperation with manual valves 1 of different diameters.

[0023] The specific adjustability between the handle section, the first limiting section and the second limiting section is realized by the following structure: the first limiting section includes a connecting rod 2, and blind holes 3 are provided at both ends of the connecting rod 2; the handle section includes a first telescopic section 13, and the first telescopic section 13 is connected with the blind hole 3 at one end of the connecting rod 2; the second limiting section includes a second telescopic section 10, and the second telescopic section 10 is connected with the blind hole 3 at the other end of the connecting rod 2; a plurality of threaded holes are evenly provided on the connecting rod 2 along the length direction of the connecting rod 2, and the threaded holes are connected with the blind holes 3 at the left and right ends of the connecting rod 2. The first telescopic rod and the second telescopic rod are respectively inserted into the blind holes 3 at the left and right ends of the connecting rod 2, and after adjusting the appropriate length, butterfly bolts are selected to pass through the threaded holes on the left and right sides of the connecting rod 2, and the first telescopic rod and the second telescopic rod are respectively abutted against the blind holes 3 of the connecting rod 2 to complete the fixation.

[0024] A bearing seat is provided at the center of the connecting rod 2, and a bearing 11 is fixed in the bearing seat. The connecting rod 5 is rotatably connected through the bearing 11. The connecting rod 5 is perpendicular to the direction of the connecting rod 2 and arranged up and down. The arrangement of the bearing 11 can enable the connecting rod 5 to realize self-rotation relative to the connecting rod 2. A first limiter is connected to the lower end of the connecting rod 5. A through hole 6 is provided near the lower end of the connecting rod 5, and the direction of the through hole 6 is consistent with the direction of the connecting rod 2. The first limiting part consists of a fulcrum base 7 and a three-fulcrum frame 8. The fulcrum base 7 is provided with a groove that matches the lower end of the connecting rod 5, and a base fixing hole 9 is provided on the groove. After the lower end of the connecting rod 5 is matched with the groove, the base fixing hole 9 on the groove is aligned with the through hole 6 on the connecting rod 5, and then the fulcrum base 7 and the connecting rod 5 are fixedly connected by the fixing bolt 4. The three-fulcrum frame 8 is fixedly connected to the bottom of the fulcrum base 7, wherein a corresponding number of fulcrum frames can be set according to the specific situation of the manual valve 1. The manual valve 1 structure of the prior art is provided with three or more support rods 14, which are inserted into the gaps between the three-fulcrum frame 8 or the multi-fulcrum frame and the corresponding manual valve 1.

[0025] The second limiting section also includes a second limiting portion, which is a horizontal "F"-shaped structure and is connected to the second telescopic section 10. The bayonet thereon cooperates with the outer edge of the manual valve 1; the handle section also includes a handle 12, which is connected to one end of the first telescopic section 13. An anti-slip sleeve is provided on the handle 12 to prevent the operator from slipping during operation; the butterfly bolt can facilitate the operator to directly perform fixing and disassembly operations.

[0026] The working principle and operation principle of the utility model are as follows: according to the conditions of the on-site working space, firstly, the distance between the first telescopic section 13 and the connecting rod 2 is adjusted to a suitable position, and then the distance between the second telescopic rod and the connecting rod 2 is adjusted according to the structure of the manual valve 1, so as to ensure that the clearance between the three-point frame 8 of the first limit part and the three support rods 14 on the manual valve 1 is matched, and at the same time, the "F"-shaped bayonet of the second limit part is matched with the outer edge of the manual valve 1; then the operator applies force to the handle 12, and based on the lever balance principle, the manual valve 1 is rotated, thereby realizing the unlocking and locking process; in addition, the structure of the bearing 11 of the rotating part is set, so that when the manual valve 1 needs to be rotated in the opposite direction, the wrench does not need to be removed, and the wrench can be directly rotated in the opposite direction to move the "F"-shaped bayonet of the second limit part from the connection point between the outer edge and one support rod 14 to the connection point between the outer edge and the other support rod 14, and then an opposite force is applied to the handle 12 to realize the opposite rotation of the manual valve 1.

[0027] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A portable labor-saving wrench for manual valve operation, characterized in that: It comprises a handle section, a first limit section and a second limit section; the handle section is telescopically connected to one end of the first limit section, and the other end of the first limit section is telescopically connected to the second limit section; the first limit section and the second limit section are respectively clamped on the manual valve (1).

2. A portable labor-saving wrench for manual valve operation according to claim 1, characterized in that: The first limiting section comprises a connecting rod (2); both ends of the connecting rod (2) are provided with blind holes (3); both ends of the connecting rod (2) are provided with a plurality of threaded holes connected to the blind holes (3); the handle section and the second limiting section respectively cooperate with the blind holes (3) at both ends of the connecting rod (2) and are fixed with the threaded holes by fixing bolts (4).

3. A portable labor-saving wrench for manual valve operation according to claim 2, characterized in that: A connecting rod (5) is provided at the center of the connecting rod (2) and is perpendicular to the connecting rod (2); a rotating portion is provided on the connecting rod (5) so that the connecting rod (5) can rotate relative to the connecting rod (2); and a first limiting portion is provided below the connecting rod (5) for cooperating with the manual valve (1).

4. A portable labor-saving wrench for manual valve operation according to claim 3, characterized in that: The connecting rod (5) is provided with a through hole (6) parallel to the connecting rod (2); the first limiting part includes a fulcrum base (7) and a three-fulcrum frame (8); the fulcrum base (7) is provided with a base fixing hole (9); after the base fixing hole (9) is aligned with the through hole (6) on the connecting rod (5), they are locked by fixing bolts (4); the three-fulcrum frame (8) is arranged below the fulcrum base (7) and is used to cooperate with the manual valve (1).

5. A portable labor-saving wrench for manual valve operation according to claim 2, characterized in that: The second limiting section comprises a second telescopic section (10) and a second limiting portion; one end of the second telescopic section (10) is connected to a blind hole (3) at one end of the connecting rod (2) and is fixed by a fixing bolt (4) and a threaded hole; the other end of the second telescopic section (10) is connected to the second limiting portion, and the second limiting portion is connected to the manual valve (1).

6. A portable labor-saving wrench for manual valve operation according to claim 3, characterized in that: The rotating part comprises a bearing seat and a bearing (11) installed in the bearing seat; the bearing seat is fixed at the inner center of the connecting rod (2); and the connecting rod (5) is fixedly connected to the bearing (11).

7. A portable labor-saving wrench for manual valve operation according to claim 2, characterized in that: The handle section comprises a handle (12) and a first telescopic section (13); one end of the first telescopic section (13) is connected to a blind hole (3) at one end of a connecting rod (2) and is fixed by a fixing bolt (4) and a threaded hole; the other end of the first telescopic section (13) is connected to the handle (12).

8. A portable labor-saving wrench for manual valve operation according to claim 7, characterized in that: The handle (12) is provided with an anti-slip cover.

9. A portable labor-saving wrench for manual valve operation according to claim 5, characterized in that: The second limiting portion is in an "F" shape.

10. A portable labor-saving wrench for manual valve operation according to claim 2, characterized in that: The fixing bolt (4) is a butterfly bolt.

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