Hammer hook integrated well lid opening device

Abstract

This utility model relates to a hammer-hook integrated manhole cover opening device, including a hammer assembly, a hook assembly, and a support assembly. The hammer assembly includes a hammer head and a handle. One end of the handle is fixedly connected to the hammer head, and the other end of the handle is detachably connected to the hook assembly. The support assembly is rotatably connected to the hook assembly. The purpose is to provide a hammer-hook integrated manhole cover opening device that is simple in structure, low in cost, safe and reliable, flexible in assembly and disassembly, and easy to carry.

Description

Technical Field

[0001] This utility model relates to a manhole cover opening device, and more particularly to a manhole cover opening device with integrated hammer and hook. Background Technology

[0002] In urban and rural areas, the underground equipment of public utilities such as electricity, gas, and heating all need to be sealed with manhole covers. When repairing or maintaining them, the manhole covers need to be opened. Currently, multiple tools such as crowbars and picks are usually used for the operation, which is very inconvenient to carry. Moreover, crowbars and picks are large and irregular in size, making it very inconvenient and inefficient to open the manhole covers. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a hammer-hook integrated manhole cover opening device that is simple in structure, low in cost, safe and reliable, flexible in disassembly and assembly, and easy to carry.

[0004] This utility model discloses a hammer and hook integrated manhole cover opening device, comprising a hammer assembly, a hook assembly, and a support assembly. The hammer assembly includes a hammer head and a handle. One end of the handle is fixedly connected to the hammer head, and the other end of the handle is detachably connected to the hook assembly. The support assembly is rotatably connected to the hook assembly.

[0005] This utility model discloses a hammer-hook integrated manhole cover opening device, wherein one end of the hammer head is a pointed part, the other end of the hammer head is a column part, and the handle is fixedly connected to the side wall of the column part.

[0006] This utility model discloses a hammer and hook integrated manhole cover opening device, wherein the hook assembly includes a connecting sleeve and a hook rod, one end of the connecting sleeve is threadedly connected to a handle, and the other end of the connecting sleeve is fixedly connected to the hook rod.

[0007] This utility model discloses a hammer-hook integrated manhole cover opening device, which further includes a pull rod located inside a connecting sleeve. One end of the pull rod is fixedly connected to a handle, and limit blocks are respectively provided on the opposite sides of the other end of the pull rod.

[0008] This utility model discloses a hammer-hook integrated manhole cover opening device, wherein the handle has anti-slip texture on the outer surface near the connecting sleeve end.

[0009] This utility model relates to a hammer-hook integrated well cover opening device, wherein the outer surface of the connecting sleeve is also provided with anti-slip texture.

[0010] This utility model discloses a hammer-hook integrated manhole cover opening device, wherein the support component is a support base, and the support base is rotatably connected to the connecting sleeve by a locking pin.

[0011] The difference between this utility model and the prior art is that this utility model integrates the hammer assembly and the hook assembly into one piece by threading, and then forms a lever with the support base. The operator can flexibly choose the operation method by assembling or disassembling the hammer assembly and the hook assembly according to the tightness of the engagement between the well cover and the well opening.

[0012] This utility model provides a hammer-hook integrated manhole cover opening device and its application method, which has at least the following beneficial effects:

[0013] The hammer and hook are cleverly combined to serve as both a manhole cover loosener and a manhole cover pry tool using the lever principle. Operators can assemble or disassemble the hammer and hook components according to their operational needs. This greatly improves the convenience of carrying the equipment during construction, and the operation is simple, safe, and reliable, significantly improving work efficiency.

[0014] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a hammer-hook integrated manhole cover opening device according to the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the hammer assembly in this utility model.

[0017] Figure label:

[0018] 01-Hammer assembly; 11-Hammer head; 111-Tip; 112-Column; 113-Hexagonal head; 12-Handle; 121-Anti-slip texture; 122-External thread; 02-Claw assembly; 21-Connecting sleeve; 22-Hook rod; 03-Support assembly; 31-Support base; 04-Pull rod; 41-Limit block. Detailed Implementation

[0019] like Figure 1 As shown, the present invention provides a hammer and hook integrated manhole cover opening device, including a hammer assembly 01, a hook assembly 02, and a support assembly 03. The hammer assembly 01 includes a hammer head 11 and a handle 12. One end of the handle 12 is fixedly connected to the hammer head 11, and the other end of the handle 12 is detachably connected to the hook assembly 02. The support assembly 03 is rotatably connected to the hook assembly 02.

[0020] In the construction and maintenance of modern urban infrastructure, opening and closing manhole covers is a frequent and important task. This utility model of a manhole cover opener, with its unique design, is not only widely used for operating gas manhole covers in gas systems, but can also play a role in similar manhole cover operations in other fields.

[0021] This manhole cover opening device integrates a hammer and hook. The hammer assembly 01 is used to loosen manhole covers that are tightly engaged with the manhole opening by striking them. The hook assembly 02 is used to lift manhole covers that have been loosened by striking or were not originally tightly engaged with the manhole opening; it is also used for dragging or installing manhole covers. The operator can assemble or disassemble the hammer assembly 01 and the hook assembly 02 according to operational needs.

[0022] The handle 12 of the hammer assembly 01 is welded to the center of the side wall of the hammer head 11, which is aesthetically pleasing and facilitates the operator's application of force. The hammer head 11 has a certain mass. When the hammer assembly 01 and the hook assembly 02 are used separately, the hammer head 11 and the handle 12 form a hammer for striking the manhole cover. When the hammer assembly 01 and the hook assembly 02 are assembled, the hammer head 11 can be used as a handle, allowing the operator to hold the hammer head 11 and use the hook assembly 02 to perform related operations on the manhole cover.

[0023] Some special manhole covers are fitted with internal hex bolts, and a hex head 113 is welded to the column 112 of the hammer 11 along the axial direction of the handle 12 to facilitate the tightening of the bolts on these manhole covers.

[0024] The manhole cover has a certain weight. The hook assembly 02 is mainly used to drag or open the manhole cover. The support assembly 03 is rotatably connected to the hook assembly 02. When the hammer assembly 01 and the hook assembly 02 are assembled and used, the handle 12, the hook assembly 02 and the support assembly 03 work together to form a lever, and the lever principle is used to pry open the manhole cover.

[0025] The manhole cover is equipped with an opening hole. When opening the manhole cover, the operator can choose the opening method according to the tightness of the manhole cover. If the manhole cover is loose, the hook assembly 02 is directly inserted into the opening hole of the manhole cover, and the support assembly 03 is then firmly supported on the ground. Using the lever principle, the manhole cover is pried up by pressing down the hammer head 11.

[0026] If the manhole cover is tight, first separate the hook assembly 02 and the hammer assembly 01, and use the hammer assembly 01 to tap around the manhole cover to loosen it. After the manhole cover is loosened, reassemble the hook assembly 02 and the hammer assembly 01. Finally, insert the hook assembly 02 into the opening hole of the manhole cover and use the lever principle with the support assembly 03 to open the manhole cover.

[0027] This manhole cover opening device cleverly combines a hammer and a hook, serving as both a manhole cover loosener and a manhole cover pry tool using the lever principle. During construction, it greatly improves the convenience for operators to carry, and is simple, safe, and reliable to operate, significantly improving work efficiency.

[0028] like Figure 1 , 2 As shown, one end of the hammer head 11 is a pointed part 111, and the other end of the hammer head 11 is a column part 112. The handle 12 is fixedly connected to the side wall of the column part 112.

[0029] The hammer head 11 is divided into two parts. The left end is the column part 112, and the handle 12 is welded to the side wall of the column part 112. Its shape is preferably prism. The prism design has a dual function. On the one hand, it can provide a powerful point of force when striking the well cover to ensure the striking effect. On the other hand, when the hammer head 11 is used as a handle, it is easy for the operator to hold and use it more smoothly.

[0030] The right end of the hammer 11 is a pointed part 111, which is preferably pyramidal in shape. Compared with a cone, it has a smaller volume and helps to save materials. When there are impurities such as silt and sand in the gap between the manhole cover and the manhole opening, the pyramidal pointed part 111 can more easily penetrate into the gap, effectively removing impurities and making it easier to pry the manhole cover.

[0031] like Figure 1 As shown, the hook assembly 02 includes a connecting sleeve 21 and a hook rod 22. One end of the connecting sleeve 21 is threadedly connected to the handle 12, and the other end of the connecting sleeve 21 is fixedly connected to the hook rod 22.

[0032] The hook assembly 02 is used to drag manhole covers or open manhole covers that do not fit tightly with the manhole opening. The connecting sleeve 21 has an open top with internal threads, and the handle 12 has matching external threads 122 at its lower end. The two are firmly connected by threads. This design not only saves space and integrates the hammer and hook 22 for different purposes, but also allows for easy assembly and disassembly as needed, improving the applicability of the manhole cover opener and thus increasing work efficiency.

[0033] The hook rod 22 is welded to the bottom of the connecting sleeve 21 and is located on the same central axis as the connecting sleeve 21 and the handle 12. This arrangement makes the manhole cover opening device aesthetically pleasing and ensures concentrated force during use, simplifying the operation process and improving work efficiency.

[0034] like Figure 2 As shown, the present invention provides a hammer-hook integrated manhole cover opening device, which also includes a pull rod located inside the connecting sleeve. One end of the pull rod is fixedly connected to the handle, and the other end of the pull rod has limit blocks on opposite sides.

[0035] The upper end of the pull rod 04 is welded to the lower end of the handle 12, and the two are located on the same central axis. This arrangement is both aesthetically pleasing and facilitates connection with other components. Two limiting blocks 41 are welded to the lower end of the pull rod 04 on opposite side walls. These blocks are used to extend into the opening hole of the gas well cover, engage with the gas well cover, and open it.

[0036] The length of the connecting sleeve 21 is greater than that of the pull rod 04. When the connecting sleeve 21 is connected to the handle 12, the pull rod 04 is located inside the connecting sleeve 21. This design not only protects the pull rod 04 but also simplifies the space, allowing components with different uses to be integrated into one unit, thus improving the applicability of the manhole cover opener.

[0037] When opening the manhole cover, you can first tap the manhole cover with the hammer head 11 until it loosens, then insert the pull rod 04 into the opening hole of the manhole cover, then rotate the hammer head 11 so that the limit block 41 presses tightly against the lower surface of the manhole cover, and finally pull the hammer head 11 upward to open the manhole cover.

[0038] like Figure 1 As shown, the outer surface of the handle 12 near the connecting sleeve 21 is provided with anti-slip texture 121. The outer surface of the connecting sleeve 21 is also provided with anti-slip texture 121.

[0039] Manhole covers have a certain weight, and the opening device will bear a considerable force when prying them open. This requires the opening device to have sufficient rigidity and toughness, especially at the connection between the handle 12 and the connecting sleeve 21. Therefore, a relatively long threaded connection is used between the two. Thus, a certain torque needs to be applied during assembly or disassembly.

[0040] When opening the manhole cover, the operator needs to select the operating method according to the tightness of the fit between the manhole cover and the manhole opening. This involves the frequent disassembly or assembly of the hammer assembly 01 and the hook assembly 02. This process is usually completed by the operator. In order to ensure that the handle 12 and the connecting sleeve 21 are firmly connected, and to make the disassembly or assembly of the two more efficient and convenient, anti-slip textures 121 are provided on the lower outer surface of the handle 12 and the outer surface of the connecting sleeve 21 to increase friction.

[0041] like Figure 1 As shown, the support component 03 is a support base 31, which is rotatably connected to the connecting sleeve 21 by a locking pin.

[0042] The support component 03 is a support base 31, preferably an inverted T-shaped support base 31. When the support base 31 is supported on the ground, the operator can easily step on the support base 31. This setting has two advantages: first, it can effectively ensure that the force point of the support base 31 is stable and does not shift; second, it can ensure that the manhole cover opening device will not tip over due to excessive force during the opening process.

[0043] The support base 31 is rotatably connected to the side wall of the connecting sleeve 21 by a pin. The pin connection is not only simple in structure and low in cost, but also facilitates the subsequent maintenance and replacement of the support base 31.

[0044] In addition, the side wall of the hammer head 11 is also equipped with an insulating layer. If the manhole cover opening device accidentally touches a live wire during the opening process, it can effectively prevent the operator from being electrocuted and also improve the operator's comfort.

[0045] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A hammer-hook integrated manhole cover opening device, characterized in that: It includes a hammer assembly, a claw assembly, and a support assembly. The hammer assembly includes a hammer head and a handle. One end of the handle is fixedly connected to the hammer head, and the other end of the handle is detachably connected to the claw assembly. The support assembly is rotatably connected to the claw assembly.

2. The hammer-hook integrated manhole cover opening device according to claim 1, characterized in that: One end of the hammer head is a pointed part, and the other end of the hammer head is a column part. The handle is fixedly connected to the side wall of the column part.

3. The hammer-hook integrated manhole cover opening device according to claim 2, characterized in that: The hook assembly includes a connecting sleeve and a hook rod. One end of the connecting sleeve is threaded to the handle, and the other end of the connecting sleeve is fixedly connected to the hook rod.

4. The hammer-hook integrated manhole cover opening device according to claim 3, characterized in that: It also includes a pull rod located inside the connecting sleeve, one end of which is fixedly connected to the handle, and the other end of the pull rod has limit blocks on opposite sides of its sidewall.

5. The hammer-hook integrated manhole cover opening device according to claim 4, characterized in that: The handle has anti-slip texture on the outer surface near the connecting sleeve end.

6. The hammer-hook integrated manhole cover opening device according to claim 5, characterized in that: The outer surface of the connecting sleeve is also provided with anti-slip texture.

7. The hammer-hook integrated manhole cover opening device according to claim 6, characterized in that: The support component is a support base, which is rotatably connected to the connecting sleeve by a locking pin.

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