F-shaped wrench with well lid opening function

Abstract

The F-shaped wrench with the well lid opening function comprises a main rod, an upper wrench head and a lower wrench head, the outer portion of the main rod is connected with a sliding sleeve in a sliding mode, a screw hole is formed in the outer portion of the main rod, the outer portion of the sliding sleeve is in threaded connection with a fixing bolt, a sliding groove is formed in the bottom of the main rod, and an extension rod is connected into the sliding groove in a sliding mode. A connecting sleeve is slidably connected to the exterior of the main rod, a sliding plate is fixedly connected between the connecting sleeve and the extension rod, an inserting groove is formed in the exterior of the main rod, an inserting rod is slidably connected to the exterior of the connecting sleeve, a connecting plate is fixedly connected to the exterior of the inserting rod, and a spring is fixedly connected between the connecting plate and the connecting sleeve. The distance between the upper plate head and the lower plate head can be adjusted by changing the mounting position of the lower plate head so as to adapt to different valve wheels, the extension rod for sliding storage is arranged, the extension length is adjusted through a self-locking structure, a force arm can be conveniently lengthened to rotate a valve, and the whole device is convenient to disassemble, assemble, store, carry and store; and the device also has the functions of skid resistance and convenience in opening the well lid.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to an F-type wrench with a manhole cover opening function. Background Art

[0002] In the petroleum, chemical, metallurgical and other industries, the daily maintenance and operation of valves are key links to ensure the normal operation of equipment. As an important tool in this process, the F-type wrench is particularly widely used. The traditional F-type wrench, with its unique "F" design, enables workers to operate valves more labor-saving and more stably. Specifically, the two ends of the F-type wrench are a long handle and a short handle. The long handle is usually used to provide sufficient force arm, so that workers can reduce the force required when turning the valve. The short handle is used to more accurately position and operate the valve gate wheel to ensure the accuracy of the operation.

[0003] However, with the continuous development of industrial technology, the traditional F-type wrench can no longer meet the needs of modern industry in some aspects. When facing valve gate wheels of different sizes, the spacing between the two sets of plate heads cannot match the valve gate wheel, which leads to the need to frequently replace the F-type wrench, which greatly reduces work efficiency. Moreover, when the valve gate wheel to be turned is larger, the main rod of the F-type wrench is not long enough, which makes it difficult for the staff to turn the valve gate wheel. At the same time, in certain specific working environments, such as opening the manhole cover, the traditional F-type wrench is often not competent. Therefore, in view of the above technical problems, an F-type wrench with a manhole cover opening function is proposed herein. Utility Model Content

[0004] The purpose of the utility model is to provide an F-type wrench with a manhole cover opening function. The distance between the upper and lower plate heads can be adjusted to adapt to different valve wheels by changing the installation position of the lower plate head. The utility model is also equipped with a sliding storage extension rod, and the extended length is adjusted through a self-locking structure, so as to facilitate extending the force arm to rotate the valve. The whole device is easy to disassemble, assemble and store, and is convenient to carry and store. The device also has the functions of anti-slip and easy to open the manhole cover.

[0005] The utility model is realized by the following technical solutions:

[0006] An F-type wrench with a manhole cover opening function comprises a main rod, an upper plate head and a lower plate head, the main rod is slidably connected to the outside with a sliding sleeve, and the sliding sleeve and the lower plate head are fixedly connected, the main rod is provided with a screw hole on the outside, and the sliding sleeve is also provided with two groups of screw holes on the outside, the sliding sleeve is threadedly connected to a fixing bolt on the outside, a sliding groove is provided at the bottom of the main rod, an extension rod is slidably connected to the inside of the sliding groove, a connecting sleeve is slidably connected to the outside of the main rod, a slide plate is fixedly connected to the connecting sleeve and the extension rod, and the slide plate and the sliding groove are slidably connected, a slot is provided on the outside of the main rod, an insertion rod is slidably connected to the outside of the connecting sleeve, a connecting plate is fixedly connected to the outside of the insertion rod, and a spring is fixedly connected between the connecting plate and the connecting sleeve.

[0007] Preferably, the upper plate head is fixedly connected to the upper end of the main rod.

[0008] Preferably, the exterior of the upper plate head and the lower plate head are fixedly connected with a No. 1 nut.

[0009] Preferably, the screw holes are in several groups and are arranged at equal intervals, and the screw holes are opened in the upper part of the main rod.

[0010] Preferably, the slots are in several groups and are arranged at equal intervals outside the main rod.

[0011] Preferably, two groups of the slots are also provided on the outside of the connecting sleeve, and the slots penetrate the outside of the extension rod, and the insertion rod is embedded in the inside of the slots.

[0012] Preferably, a No. 2 nut is fixedly connected to the bottom end of the extension rod.

[0013] The technical solution of the utility model has at least the following beneficial effects:

[0014] The utility model proposes an F-type wrench with a manhole cover opening function. By changing the installation position of the lower plate head on the main rod, the spacing between the upper plate head and the lower plate head can be arbitrarily changed, thereby adapting to valve door wheels of various sizes. At the same time, it is also equipped with a sliding storage extension rod. The staff can control the extended length of the extension rod through the self-locking structure, so that the length of the force arm can be adjusted as needed, and the valve door wheel can be turned more easily. In addition, this wrench is also easy to disassemble and store, making the entire device more convenient to carry and store. At the same time, No. 1 nuts are arranged at the ends of the upper plate head and the lower plate head, which play an anti-slip role and increase stability and safety during operation, while the No. 2 nut at the end of the extension rod can penetrate into the hole of the manhole cover, and the No. 2 nut is rotated to engage with the hole of the manhole cover, thereby conveniently opening the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a second overall structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 A magnified view of middle;

[0018] Figure 4 This is a third overall structural schematic diagram of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of middle B;

[0020] Icons: 1. Main rod; 2. Upper plate head; 3. Lower plate head; 4. No. 1 nut; 5. Sliding sleeve; 6. Screw hole; 7. Fixing bolt; 8. Sliding groove; 9. Extension rod; 10. Sliding plate; 11. Connecting sleeve; 12. Slot; 13. Insert rod; 14. Connecting plate; 15. Spring; 16. No. 2 nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides an F-type wrench with a manhole cover opening function, comprising a main rod 1, an upper plate head 2 and a lower plate head 3. The main rod 1 is externally slidably connected with a sliding sleeve 5, and the sliding sleeve 5 is fixedly connected to the lower plate head 3. The main rod 1 is externally provided with a screw hole 6, and the sliding sleeve 5 is also externally provided with two groups of screw holes 6. The external threaded connection of the sliding sleeve 5 is provided with a fixing bolt 7. The bottom of the main rod 1 is provided with a sliding groove 8, and an extension rod 9 is slidably connected inside the sliding groove 8. The main rod 1 is externally slidably connected with a connecting sleeve 11, a slide plate 10 is fixedly connected between the connecting sleeve 11 and the extension rod 9, and the slide plate 10 is slidably connected to the sliding groove 8. A slot 12 is provided on the outside of the main rod 1, and an insert rod 13 is externally slidably connected to the connecting sleeve 11, and a connecting plate 14 is fixedly connected to the outside of the insert rod 13, and a spring 15 is fixedly connected between the connecting plate 14 and the connecting sleeve 11.

[0023] The upper plate head 2 is fixedly connected to the upper end of the main rod 1, and the outer parts of the upper plate head 2 and the lower plate head 3 are fixedly connected with a No. 1 nut 4. The No. 1 nut 4 can prevent the upper plate head 2 and the lower plate head 3 from being separated when they are clamped with the valve door wheel, thereby playing an anti-slip role.

[0024] The screw holes 6 are arranged in several groups at equal intervals, and the screw holes 6 are opened in the upper part of the main rod 1, so that the lower plate head 3 can be installed in different positions and adjusted flexibly.

[0025] The number of the slots 12 is several groups and they are arranged at equal intervals outside the main rod 1, so that it is convenient to position the extension rod 9 to different positions and change its extension length.

[0026] Two groups of slots 12 are also provided on the outside of the connecting sleeve 11 , and the slots 12 penetrate the outside of the extension rod 9 , and the insertion rod 13 is embedded in the slots 12 , so as to facilitate the positioning and installation of the extension rod 9 .

[0027] The bottom end of the extension rod 9 is fixedly connected with a No. 2 nut 16. The No. 2 nut 16 at the end of the extension rod 9 can penetrate into the hole of the manhole cover. By rotating the No. 2 nut 16 to engage with the hole of the manhole cover, the manhole cover can be opened conveniently.

[0028] The working principle of an F-type wrench with a manhole cover opening function based on the embodiment is that when the device is used, the lower plate head 3 can be made to follow the sliding sleeve 5 to slide up and down on the main rod 1 by unscrewing the fixing bolt 7, and the fixing bolt 7 is installed in different screw holes 6 to change the installation position of the lower plate head 3 on the main rod 1, so that the distance between the upper plate head 2 and the lower plate head 3 can be arbitrarily changed to adapt to valve wheels of various sizes, and is also equipped with a sliding storage extension rod 9. The staff can pull the connecting plate 14 to pull the plug rod 13 out of the slot 12, and at the same time stretch the spring 15, and the extension rod 9 can follow the connecting sleeve 11 to slide in the slide groove 8 through the slide plate 10. When the extension rod 9 is extended to a suitable position, the slot 12 on the connecting sleeve 11 is aligned with the slot 12 on the main rod 1, and then the connecting plate is released. Plate 14, at this time, the plug rod 13 can be automatically inserted into the slot 12 driven by the spring 15 to complete the positioning and fixing of the extension rod 9. In this way, the length of the extension rod 9 is controlled, so that the length of the force arm can be adjusted as needed, and the valve door wheel can be turned more easily. In addition, by pulling the connecting plate 14 to drive the plug rod 13 out of the slot 12, the extension rod 9 can be separated and disassembled from the main rod 1, and by unscrewing the fixing bolt 7, the lower plate head 3 can also be removed, making the entire device more convenient to carry and store. At the same time, a No. 1 nut 4 is set at the end of the upper plate head 2 and the lower plate head 3, which plays an anti-slip role and increases the stability and safety during operation. The No. 2 nut 16 at the end of the extension rod 9 can penetrate into the hole of the manhole cover, and the No. 2 nut 16 is turned to engage with the hole of the manhole cover, thereby conveniently opening the manhole cover.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An F-type wrench with a manhole cover opening function, characterized in that: The invention comprises a main rod (1), an upper plate head (2) and a lower plate head (3); the main rod (1) is slidably connected to a sliding sleeve (5) on the outside, and the sliding sleeve (5) and the lower plate head (3) are fixedly connected; the main rod (1) is provided with a screw hole (6) on the outside, and the sliding sleeve (5) is also provided with two groups of screw holes (6) on the outside; the sliding sleeve (5) is threadedly connected to a fixing bolt (7) on the outside; the main rod (1) is provided with a sliding groove (8) on the bottom, and an extension rod (9) is slidably connected to the inside of the sliding groove (8); The main rod (1) is slidably connected to a connecting sleeve (11) on the outside, a slide plate (10) is fixedly connected between the connecting sleeve (11) and the extension rod (9), and the slide plate (10) is slidably connected to the slide groove (8), a slot (12) is provided on the outside of the main rod (1), an insertion rod (13) is slidably connected to the outside of the connecting sleeve (11), a connecting plate (14) is fixedly connected to the outside of the insertion rod (13), and a spring (15) is fixedly connected between the connecting plate (14) and the connecting sleeve (11).

2. The F-type wrench with manhole cover opening function according to claim 1, characterized in that: The upper plate head (2) is fixedly connected to the upper end of the main rod (1).

3. The F-type wrench with manhole cover opening function according to claim 1, characterized in that: The exteriors of the upper plate head (2) and the lower plate head (3) are both fixedly connected with a No. 1 nut (4).

4. The F-type wrench with manhole cover opening function according to claim 3, characterized in that: The screw holes (6) are provided in a plurality of groups and are arranged at equal intervals, and the screw holes (6) are provided in the upper part of the main rod (1).

5. The F-type wrench with manhole cover opening function according to claim 3, characterized in that: The slots (12) are provided in a plurality of groups and are arranged at equal intervals outside the main rod (1).

6. The F-type wrench with manhole cover opening function according to claim 1, characterized in that: The outside of the connecting sleeve (11) is also provided with two groups of slots (12), and the slots (12) penetrate the outside of the extension rod (9), and the insertion rod (13) is embedded in the inside of the slots (12).

7. The F-type wrench with manhole cover opening function according to claim 1, characterized in that: A No. 2 nut (16) is fixedly connected to the bottom end of the extension rod (9).

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