Telescopic tool easy to carry and capable of opening well lid by one person

Abstract

The utility model relates to the technical field of well lid maintenance, in particular to an easy-to-carry telescopic tool for opening a well lid by a single person. Comprising a lifting rod, a pressing rod, a traction part, a connecting part, a base and a lifting appliance, one end of the lifting rod is connected with the connecting part; one end of the pressing rod is hinged to the connecting part; the connecting part is mounted on the base; one end of the traction part is connected with the lifting rod, the other end of the traction part is connected with the pressing rod, and the length of the traction part is adjustable; one end of the lifting appliance is connected with the lifting rod, and the other end of the lifting appliance is clamped with the through hole of the well lid to be opened. The tool is simple in structure and easy to carry and operate, the lever principle is applied to the tool, time and labor are saved during use, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover maintenance, in particular to a single-person manhole cover opening tool that is easy to carry and retractable. Background Technique

[0002] During the daily operation and maintenance of the natural gas pipeline network and daily operations, it is necessary to frequently open and close the buried valves of natural gas pipelines. The buried valves of natural gas pipelines are composed of manhole covers and valve bodies. Currently, during the daily operation of buried valves, operators first need to open the manhole covers of buried valves. The manhole cover opening tools currently used by gas companies are generally well hooks. Using a well hook to open and close a manhole cover has many drawbacks. First, at least two people are required to assist in opening the manhole cover using this tool. Second, the force arm of this tool is short, making it laborious to use. Third, it is not easy to operate and is very inconvenient. Therefore, it is urgently needed to be solved.

[0003] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is the closest prior art. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a single-person manhole cover opening tool that is easy to carry and retractable. This tool is not only simple in structure, easy to carry and operate, but also uses the lever principle, saving time and effort and having high efficiency when used.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows. A single-person manhole cover opening tool that is easy to carry and retractable includes: a lifting rod, a pressing rod, a traction part, a connecting part, a base and a lifting tool; one end of the lifting rod is connected to the connecting part; one end of the pressing rod is hinged to the connecting part; the connecting part is installed on the base; one end of the traction part is connected to the lifting rod, and the other end is connected to the pressing rod, and the length of the traction part is adjustable; one end of the lifting tool is connected to the lifting rod, and the other end is engaged with the through hole of the manhole cover to be opened.

[0006] Preferably, the lifting rod includes a first load-bearing rod, a second movable rod, a first connecting sleeve and a second connecting sleeve; the lifting tool includes a hook; one end of the first load-bearing rod is connected to the connecting part; the first connecting sleeve is sleeved on the other end of the first load-bearing rod and forms a sliding connection therewith, and the first connecting sleeve is provided with a locking bolt for restricting the sliding of the first connecting sleeve along the first load-bearing rod; the second connecting sleeve is sleeved on the second movable rod, and the second connecting sleeve forms a rotational connection with the first connecting sleeve; there are two hooks, which form a sliding connection with the second movable rod.

[0007] Preferably, the hook includes a connecting sleeve and an L-shaped hook; the connecting sleeve is sleeved on the second movable rod and can slide along the length direction of the second movable rod, and a tightening bolt for restricting the connecting sleeve from sliding along the rod body of the second movable rod is arranged on the connecting sleeve; the top end of the L-shaped hook is rotatably connected to the bottom of the connecting sleeve.

[0008] Preferably, the base includes a connecting rod and two moving wheels; both ends of the connecting rod are respectively connected to the central axes of the two moving wheels.

[0009] Preferably, the connecting part includes a hinge chain; the hinge chain is respectively connected to the ends of the hoisting rod and the pressing rod; the pressing rod is fixedly connected to the middle part of the connecting rod.

[0010] Preferably, the connecting part includes two U-shaped joints; the two U-shaped joints are respectively connected to the ends of the hoisting rod and the pressing rod, and through holes are arranged on the U-shaped joints; the middle part of the connecting rod is in plug-in fit with the through holes.

[0011] Preferably, the base includes a support platform and rollers; the connecting part includes a horizontal rod, a vertical rod and a vertical sleeve; one ends of the hoisting rod and the pressing rod are both rotatably connected to the horizontal rod; the top end of the vertical rod is vertically connected to the horizontal rod, and the bottom end is inserted into the vertical sleeve; the vertical sleeve is vertically connected to the top of the support platform; the rollers are installed at the bottom of the support platform, and a locking structure for restricting the movement of the rollers is arranged on the rollers.

[0012] Preferably, the rollers are detachably connected to the bottom of the support platform.

[0013] Preferably, the rollers are universal wheels.

[0014] Preferably, the pressing rod includes a sleeve rod, an extension rod and a T-shaped rod; one end of the sleeve rod is connected to the connecting part; one end of the extension rod is inserted into the sleeve rod; the T-shaped rod is connected to the other end of the extension rod.

[0015] The beneficial effects of the present utility model are embodied in:

[0016] (1). The tool provided by the present utility model has a relatively simple structure and is easy to operate. It is not only convenient for the operator to carry, but also utilizes the lever principle, reduces the working difficulty of opening the manhole cover by one person, and improves the efficiency of opening the manhole cover.

[0017] (2). The tool provided by the present utility model has wide applicability and can achieve the effect of reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2Schematic structural diagram of the first solution of the present utility model;

[0020] Figure 3 Schematic structural diagram of the second solution of the present utility model after being stored;

[0021] Figure 4 Schematic structural diagram of the base of the present utility model.

[0022] Explanation of reference numerals:

[0023] 10. Lifting boom; 11. First load-bearing rod; 12. Second movable rod; 20. Pressing rod; 21. Sleeve rod;

[0024] 22. Extension rod; 23. T-shaped rod; 30. Traction part; 31. Iron chain; 40. Connecting part;

[0025] 41. Hinge chain; 42. U-shaped joint; 50. Base; 51. Connecting rod; 52. Movable wheel;

[0026] 53. Support platform; 54. Roller; 60. Hoisting tool; 63. Hook; 64. Second connecting sleeve;

[0027] 65. First connecting sleeve; 66. Locking bolt. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment

[0030] See Figures 1-4 as shown:

[0031] The present utility model provides an easy-to-carry and retractable single-person manhole cover opening tool, including: a lifting boom 10, a pressing rod 20, a traction part 30, a connecting part 40, a base 50 and a hoisting tool 60.

[0032] One end of the lifting boom 10 is connected to the connecting part 40, one end of the pressing rod 20 is hinged to the connecting part 40, and the connecting part 40 is installed on the base 50. One end of the traction part 30 is connected to the lifting boom 10, and the other end is connected to the pressing rod 20, and the length of the traction part 30 is adjustable. One end of the hoisting tool 60 is connected to the lifting boom 10, and the other end is engaged with the through hole of the manhole cover to be opened.

[0033] During specific implementation, the operator clamps the lifting tool 60 onto the through hole of the manhole cover to be opened, and then adjusts the length of the traction part 30 according to the weight of the manhole cover to be opened, so as to adjust the moment between the lifting rod 10 and the pressure rod 20. Then, the operator bends the pressure rod 20 backward, and the traction part 30 pulls the lifting rod 10. The lifting rod 10 drives the lifting tool 60 upward, thereby lifting the manhole cover to be opened and completing the operation of opening the manhole cover. Such a design is not only simple in structure and easy to operate, but also utilizes the lever principle, enabling an operator to easily complete the operation of opening the manhole cover.

[0034] The pressure rod 20 can be composed of a sleeve rod 21, an extension rod 22, and a T-shaped rod 23. One end of the sleeve rod 21 is connected to the connecting part 40. One end of the extension rod 22 is inserted into the sleeve rod 21; the T-shaped rod 23 is connected to the other end of the extension rod 22. Thus, the pressure rod 20 is set as a telescopic rod with adjustable length, which is convenient for the operator to adjust the moment according to the on-site use requirements, and is also convenient for storage and carrying.

[0035] The traction part 30 can be set as a rope or an iron chain 31. When it is set as the iron chain 31, a clip is provided on the pressure rod 20. When hoisting manhole covers of different weights, different parts of the iron chain 31 are clamped with the clip to complete the adjustment of the angle and distance between the pressure rod 20 and the lifting rod 10.

[0036] The lifting rod 10 is mainly composed of a first load-bearing rod 11, a second movable rod 12, a first connecting sleeve 65, and a second connecting sleeve 64. The lifting tool 60 includes a hook 63.

[0037] One end of the first load-bearing rod 11 is connected to the connecting part 40; the first connecting sleeve 65 is sleeved on the other end of the first load-bearing rod 11 and forms a sliding connection therewith, and the first connecting sleeve 65 is provided with a locking bolt 66 for restricting the first connecting sleeve 65 from sliding along the first load-bearing rod 11.

[0038] The second connecting sleeve 64 is sleeved on the second movable rod 12, and the second connecting sleeve 64 forms a rotational connection with the first connecting sleeve 65; there are two hooks 63, and they form a sliding connection with the second movable rod 12.

[0039] The hook 63 includes a connecting sleeve and an L-shaped hook; the connecting sleeve is sleeved on the second movable rod 12 and can slide along the length direction of the second movable rod 12, and the connecting sleeve is provided with a tightening bolt for restricting the connecting sleeve from sliding along the rod body of the second movable rod 12; the top of the L-shaped hook forms a rotational connection with the bottom of the connecting sleeve.

[0040] With such a setting, during specific implementation, when an operator performs an opening operation on manhole covers to be opened of the same type, first adjust the distance of the first connecting sleeve 65 on the first bearing rod 11 according to the weight of the manhole cover, so as to complete the adjustment of the torque, and then adjust the distance between the two hooks 63 according to the distance between the two through holes on the manhole cover to be opened. When in use, just insert the L-shaped hook into the two through holes on the manhole cover to be opened, rotate the L-shaped hook, and then move the pressing rod 20. Then the opening operation can be quickly carried out, which is simple, convenient and efficient.

[0041] The base 50 includes a connecting rod 51 and two moving wheels 52; both ends of the connecting rod 51 are respectively connected to the central axes of the two moving wheels 52, so that the base 50 is set to be movable, which is convenient for the operator to move the tool and the manhole cover to be opened, saving effort and being convenient.

[0042] The connecting part 40 can be set as a hinge chain 41; the hinge chain 41 is respectively connected to the ends of the lifting rod 10 and the pressing rod 20; the pressing rod 20 is fixedly connected to the middle part of the connecting rod 51, so that the connection part between the pressing rod 20 and the connecting rod 51 forms the fulcrum of the lever force. With such a setting, the manufacturing cost of the tool is reduced, the precision of the tool is ensured, and the durability of the tool in use is also improved.

[0043] In order to simplify the tool structure, the connecting part 40 can also be set as two U-shaped joints 42. The two U-shaped joints 42 are respectively connected to the ends of the lifting rod 10 and the pressing rod 20, and through holes are provided on the U-shaped joints 42. The middle part of the connecting rod 51 forms a plug-in fit with the through holes. With such a setting, the connecting rod 51 forms a hinge shaft, and the ends of the lifting rod 10 and the pressing rod 20 form a hinge around the connecting rod 51, thus simplifying the structure of the whole tool. This is beneficial to reducing the manufacturing cost of the tool, and at the same time such a tool meets the working requirements of opening relatively light manhole covers.

[0044] When the weight of the manhole cover to be lifted is relatively heavy. The base 50 can be set as a support platform 53 and rollers 54. The connecting part 40 includes a horizontal rod 43, a vertical rod 44 and a vertical sleeve 45.

[0045] One ends of the lifting rod 10 and the pressing rod 20 are both rotatably connected to the horizontal rod 43, so that the lifting rod 10 and the pressing rod 20 form a hinge around the horizontal rod 43, and the top end of the vertical rod 44 is perpendicularly connected to the horizontal rod 43, and the bottom end is inserted into the vertical sleeve 45 and forms a rotatable connection. The vertical sleeve 45 is perpendicularly connected to the top of the support platform 53; the rollers 54 are installed at the bottom of the support platform 53, and a locking structure for restricting the movement of the rollers 54 is provided on the rollers 54.

[0046] After the lifting rod 10 lifts the manhole cover, deflecting the pressing rod 20 to one side can make the tool drive the manhole cover to rotate, which is suitable for transferring a relatively heavy manhole cover to one side of the wellhead.

[0047] The roller 54 and the bottom of the support platform 53 form a detachable connection. The roller 54 is a universal wheel, which facilitates the operator to transfer the manhole cover according to the space near the wellhead.

[0048] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly. In addition, if there are descriptions such as "first" and "second" in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, "a plurality" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable and retractable single-person manhole cover opening tool, characterized in that, Including: A lifting boom (10), a pressure rod (20), a traction part (30), a connecting part (40), a base (50) and a lifting tool (60); one end of the lifting boom (10) is connected to the connecting part (40); one end of the pressure rod (20) is hinged to the connecting part (40); the connecting part (40) is installed on the base (50); one end of the traction part (30) is connected to the lifting boom (10), and the other end is connected to the pressure rod (20), and the length of the traction part (30) is adjustable; one end of the lifting tool (60) is connected to the lifting boom (10), and the other end is snap-connected to the through hole of the manhole cover to be opened.

2. The single-person manhole cover opening tool that is easy to carry and retractable according to claim 1, wherein The lifting boom (10) includes a first load-bearing rod (11), a second movable rod (12), a first connecting sleeve (65) and a second connecting sleeve (64); the lifting tool (60) includes a hook (63); one end of the first load-bearing rod (11) is connected to the connecting part (40); the first connecting sleeve (65) is sleeved on the other end of the first load-bearing rod (11) and forms a sliding connection therewith, and the first connecting sleeve (65) is provided with a locking bolt (66) for restricting the first connecting sleeve (65) from sliding along the first load-bearing rod (11); the second connecting sleeve (64) is sleeved on the second movable rod (12), and the second connecting sleeve (64) forms a rotational connection with the first connecting sleeve (65); there are two hooks (63), and they form a sliding connection with the second movable rod (12).

3. The retractable and portable single-person manhole cover opening tool according to claim 2, characterized in that, The hook (63) includes a connecting sleeve and an L-shaped hook; the connecting sleeve is sleeved on the second movable rod (12) and can slide along the length direction of the second movable rod (12), and the connecting sleeve is provided with a tightening bolt for restricting the connecting sleeve from sliding along the rod body of the second movable rod (12); the top end of the L-shaped hook is rotationally connected to the bottom of the connecting sleeve.

4. A portable and retractable single-person manhole cover opening tool according to claim 1, characterized in that The base (50) includes a connecting rod (51) and two moving wheels (52); both ends of the connecting rod (51) are respectively connected to the central axes of the two moving wheels (52).

5. The single-person manhole cover opening tool that is easy to carry and retractable according to claim 4, wherein The connecting part (40) includes a hinge chain (41); the hinge chain (41) is respectively connected to the ends of the lifting boom (10) and the pressure rod (20); the pressure rod (20) is fixedly connected to the middle of the connecting rod (51).

6. The single-person manhole cover opening tool that is easy to carry and retractable according to claim 4, wherein The connecting part (40) includes two U-shaped joints (42); the two U-shaped joints (42) are respectively connected to the ends of the lifting boom (10) and the pressure rod (20), and the U-shaped joints (42) are provided with through holes; the middle of the connecting rod (51) is in plug-in fit with the through holes.

7. A portable and retractable single-person manhole cover opening tool according to claim 1, characterized in that, The base (50) includes a support platform (53) and rollers (54); the connecting part (40) includes a horizontal rod (43), a vertical rod (44) and a vertical sleeve (45); one ends of the hoisting rod (10) and the pressing rod (20) are rotatably connected to the horizontal rod (43); the top end of the vertical rod (44) is perpendicularly connected to the horizontal rod (43), and the bottom end is inserted into the vertical sleeve (45); the vertical sleeve (45) is perpendicularly connected to the top of the support platform (53); the rollers (54) are installed at the bottom of the support platform (53), and a locking structure for restricting the movement of the rollers (54) is provided on the rollers (54).

8. A portable and retractable single-person manhole cover opening tool according to claim 7, characterized in that, The rollers (54) are detachably connected to the bottom of the support platform (53).

9. A portable and retractable single-person manhole cover opening tool according to claim 8, characterized in that, The rollers (54) are provided as universal wheels.

10. The single-person manhole cover opening tool that is easy to carry and retractable according to claim 1, characterized in that, The pressing rod (20) includes a sleeve rod (21), an extension rod (22) and a T-shaped rod (23); one end of the sleeve rod (21) is connected to the connecting part (40); one end of the extension rod (22) is inserted into the sleeve rod (21); the T-shaped rod (23) is connected to the other end of the extension rod (22).

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