Well lid opening tool convenient to store

Abstract

The utility model belongs to the technical field of municipal construction, and particularly provides a well lid opening tool convenient to store, which comprises a light well lid opening device, the light well lid opening device comprises an operating rod, the upper end of the operating rod is provided with a storage groove, a hook rod is arranged in the storage groove, the upper end of the hook rod is rotatably arranged in the storage groove, and the other end of the hook rod is provided with an operating hook. A mounting groove matched with the fixed clamping rod is formed in the bottom of the storage groove, a clamping block is arranged on the fixed clamping rod, a clamping groove communicated with the mounting groove is formed in the operating rod, and after the hook rod is overturned to the horizontal state and the fixed clamping rod moves upwards to the lower side of the hook rod, the fixed clamping rod is rotated to rotate the clamping block into the clamping groove. The tool can be conveniently carried by inspection and maintenance workers, is suitable for opening light well lids, can be coupled with a pickaxe tool, and is suitable for opening various well lids.

Description

Technical Field

[0001] This utility model relates to the field of municipal construction technology, and in particular to a convenient and easy-to-store manhole cover opening tool. Background Technology

[0002] Currently, the daily work of sewage and rainwater pipeline inspection and maintenance mainly relies on manual inspection, especially for small-diameter rural sewage collection networks. During the inspection and maintenance of small-diameter sewage collection networks in villages, manual labor is primarily used to open manhole covers one by one to assess the condition of the pipes. Rural pipeline construction has only begun in large-scale, phased implementation in recent years. Pipelines in different towns within the same city, or even pipelines built in different batches within the same region, often exhibit different construction standards, inevitably leading to variations in the style of manhole covers.

[0003] Tools used to open manhole covers are generally picks, such as the novel manhole exploration pick disclosed in CN221232481U. However, picks are suitable for opening heavy manhole covers made of concrete or cast iron. For light manhole covers, the opening force cannot be well controlled, making the cover easily damaged. To adapt to different types of manhole covers, different types of tools need to be carried, making them inconvenient to carry and hindering inspection work. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a convenient and easy-to-store manhole cover opening tool that is easy for inspection and maintenance personnel to carry while being suitable for opening lightweight manhole covers.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a convenient manhole cover opening tool, including a lightweight manhole cover opening device, which includes an operating rod, a storage groove at the upper end of the operating rod, a hook rod in the storage groove, the upper end of the hook rod being rotatably set in the storage groove, an operating hook at the other end of the hook rod, an installation groove at the bottom of the storage groove that cooperates with a fixed clamp rod, a clamping block on the fixed clamp rod, and a slot communicating with the installation groove on the operating rod. When the hook rod is flipped to a horizontal state, the fixed clamp rod moves upward to the lower side of the hook rod, and the fixed clamp rod is rotated to rotate the clamping block into the slot.

[0006] In a preferred embodiment, the upper end of the hook rod is rotatably mounted in the storage slot via a pin, with the pin positioned perpendicular to the length direction of the storage slot.

[0007] In a preferred embodiment, the upper end of the fixing rod is provided with an elastic pad.

[0008] In a preferred embodiment, the elastic pad is made of rubber.

[0009] In a preferred embodiment, a spring piece is provided at the bottom of the mounting groove to push the fixing rod upward.

[0010] In a preferred embodiment, the mounting groove includes a cylindrical groove and a sliding groove disposed on one side of the cylindrical groove, and the locking block passes through the sliding groove and moves up and down along the sliding groove.

[0011] In a preferred embodiment, the storage slot includes a vertical opening slot and a hook slot disposed on one side of the lower end of the vertical opening slot, the hook slot being used to accommodate the operating hook.

[0012] In a preferred embodiment, the length of the hook rod is less than the length of the vertical opening slot, and when the hook rod is rotated to the vertical position, there is an operating gap between the hook rod and the lower end of the vertical opening slot.

[0013] In a preferred embodiment, a limiting groove is provided on one side of the upper end of the vertical opening groove. When the hook rod is rotated to a horizontal state, the end away from the operating hook abuts against the upper side of the bottom of the limiting groove.

[0014] In a preferred embodiment, the upper end of the operating rod is provided with an external thread for connecting with the pick tool, the lower end of the handle of the pick tool is provided with a threaded hole for connecting with the threaded operating rod, and the upper end of the handle is provided with a pick.

[0015] This utility model provides a convenient and easy-to-store manhole cover opening tool, which has the following beneficial effects:

[0016] 1. This utility model, through innovative structural design, effectively solves the problems of existing manhole cover opening tools being inconvenient to carry, having limited functionality, and easily damaging lightweight manhole covers. The hook rod can rotate around the pin shaft and is vertically embedded in the storage groove of the operating rod when stored, with the operating hook hidden in the hook groove. The overall structure is compact and small in size. Compared with traditional detachable tools, no additional storage accessories are required, significantly reducing carrying space. It is convenient for inspection personnel to hold with one hand or put into a tool bag, making it especially suitable for long-distance operations in complex environments such as rural pipeline networks.

[0017] 2. Extend the hook rod to a horizontal position, hook the edge of the manhole cover by operating the hook, and easily open it using the lever principle, avoiding damage to the manhole cover caused by excessive force due to traditional picks.

[0018] 3. The upper end of the operating rod is detachably connected to the pick tool via an external thread, integrating the functions of a "light-duty manhole cover opening device" and a "heavy-duty pick tool." There's no need to carry multiple separate tools; one set of equipment can handle both light and heavy-duty manhole cover opening needs, reducing the burden on workers. After installing the pick tool, it transforms into a traditional pick structure, suitable for prying heavy manhole covers such as concrete ones. This dual-purpose device solves the compatibility problem for the diverse types of manhole covers used in rural pipeline networks.

[0019] 4. The spring clip at the bottom of the mounting slot applies an upward elastic force to the fixing rod, ensuring that the hook rod is stable and does not wobble when stored, thus avoiding accidental unfolding during transportation and causing safety hazards. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 A schematic diagram of the structure when the lightweight manhole cover opening device is stored.

[0023] Figure 3 This is a schematic diagram of the structure of the lightweight manhole cover opening device when the hook rod is deployed;

[0024] Figure 4 A cross-sectional view of the hook rod of the lightweight manhole cover opening device when it is deployed;

[0025] Figure 5 This is a schematic diagram of the structure of a pickaxe tool;

[0026] In the diagram: operating lever 100, storage slot 110, vertical opening slot 111, hook slot 112, limiting slot 113, mounting slot 120, cylindrical slot 121, sliding slot 122, locking slot 130, hook rod 200, operating hook 300, fixed locking rod 400, elastic pad 410, locking block 500, spring piece 600, handle 700, threaded hole 710, pick 800. Detailed Implementation

[0027] Example 1:

[0028] like Figures 1-4 As shown, a convenient manhole cover opening tool includes a lightweight manhole cover opening device. The lightweight manhole cover opening device includes an operating rod 100, and a storage groove 110 is provided at the upper end of the operating rod 100. The storage groove 110 is arranged along the length direction of the operating rod 100 and is located on one side of the operating rod 100. A hook rod 200 is provided in the storage groove 110, and the upper end of the hook rod 200 is rotatably arranged in the storage groove 110. In this embodiment, the upper end of the hook rod 200 is rotatably installed in the storage groove 110 by a pin, and the pin is arranged perpendicular to the length direction of the storage groove 110.

[0029] The other end of the hook rod 200 is equipped with an operating hook 300. When the hook rod 200 is rotated to a vertical position, it is hidden in the storage slot 110 and is in a stored state. Figure 2 As shown. When the hook rod 200 is rotated to a horizontal position, it is in the unfolded use state. At this time, the operating hook 300 is set on the lower side of the hook rod 200, as shown. Figure 3 and 4 As shown

[0030] In this embodiment, the storage slot 110 includes a vertical opening slot 111 and a hook slot 112 disposed on one side of the lower end of the vertical opening slot 111. The hook slot 112 is used to accommodate the operating hook 300, so that the hook rod 200 can be completely stored in the storage slot 110 when rotated to the vertical position. The length of the hook rod 200 is less than the length of the vertical opening slot 111. When the hook rod 200 is rotated to the vertical position, there is an operating gap between the hook rod 200 and the lower end of the vertical opening slot 111, which facilitates the operation of the hook rod 200.

[0031] The bottom of the storage slot 110 is provided with an installation slot 120 that cooperates with the fixed lever 400. The fixed lever 400 is provided with a locking block 500, and the operating lever 100 is provided with a locking groove 130 that communicates with the installation slot 120. When the hook rod 200 is flipped to a horizontal state, the fixed lever 400 moves upward to the lower side of the hook rod 200. At this time, the locking block 500 moves to the position of the locking groove 130. Rotating the fixed lever 400 rotates the locking block 500 into the locking groove 130, limiting the position of the fixed lever 400 so that it cannot continue to move up and down. When the hook rod 200 needs to be stored in the storage slot 110 after use, the fixed lever 400 is rotated in the opposite direction to rotate the locking block 500 away from the locking groove 130 and into the installation slot 120, releasing the limitation and allowing the fixed lever 400 to continue to move downward, releasing the limitation on the hook rod 200 and allowing it to rotate into the storage slot 110.

[0032] The mounting groove 120 includes a cylindrical groove 121 and a sliding groove 122 disposed on one side of the cylindrical groove 121. The locking block 500 passes through the sliding groove 122 and moves up and down along the sliding groove 122. The width of the sliding groove 122 is smaller than the diameter of the cylindrical groove 121, so that after the fixing rod is inserted into the mounting groove 120, it can only move up and down and will not detach from the mounting groove 120.

[0033] Preferably, the upper end of the fixing rod 400 is provided with an elastic pad 410. In this embodiment, the elastic pad 410 is made of rubber. By providing the elastic pad 410, when the fixing rod 400 is pushed upward to limit the hook rod 200 and keep it in a horizontal state, the elastic pad 410 is squeezed, increasing the friction.

[0034] Preferred, such as Figure 4 As shown, a limiting groove 113 is provided on one side of the upper end of the vertical opening groove 111. When the hook rod 200 rotates to a horizontal state, the end away from the operating hook 300 abuts against the upper side of the bottom of the limiting groove 113. By setting the limiting groove 113, the hook rod 200 is limited to rotate, so that it cannot continue to rotate after rotating to a horizontal state, thereby keeping the hook rod 200 in a horizontal state when the tool is in use.

[0035] Preferred, such as Figure 4As shown, the bottom of the mounting groove 120 is provided with a spring piece 600, which is used to lift the fixing rod 400 upward. When the hook rod 200 is in a vertical state, under the action of the spring piece 600, the upper end of the fixing rod 400 presses the end of the hook rod 200 upward. One end of the spring piece 600 is welded or fixed to the bottom of the mounting groove 120 by bolts, and the other end can freely extend and retract when deformed.

[0036] When the hook rod 200 is stored vertically in the storage slot 110, the spring piece 600 applies an upward elastic force to the fixing rod 400, pressing the fixing rod 400 against the end of the hook rod 200 to prevent the hook rod 200 from rotating freely and disengaging from the storage slot 110, thus providing a locking function. When it is necessary to rotate the hook rod 200 to a horizontal position, first press the fixing rod 400 downwards, compressing the spring piece 600. At this time, the fixing rod 400 and the hook rod 200 are not in contact, releasing the lock on the hook rod 200, allowing the hook rod 200 to rotate. After rotating the hook rod 200 to a horizontal position, move the fixing rod 400 upwards. The locking block 500 moves to the slot 130 position, and the fixed locking rod 400 is rotated to rotate the locking block 500 into the slot 130, limiting the position of the fixed locking rod 400 so that it cannot move up or down. At this time, the fixed locking rod 400 limits the rotation of the hook rod 200, keeping it in a horizontal state. When the hook rod 200 needs to be stored in the storage slot 110 after use, the fixed locking rod 400 is rotated in the opposite direction to rotate the locking block 500 away from the slot 130 and into the mounting slot 120, releasing the limit and allowing the fixed locking rod 400 to continue to move downward, releasing the limit on the hook rod 200, and allowing it to rotate into the storage slot 110.

[0037] When used to open lightweight manhole covers, simply extend the hook rod 200 to a horizontal position, and the manhole cover can be opened by operating the hook 300 and the hook rod 200.

[0038] Example 2:

[0039] Preferred, such as Figure 1 and 5 As shown, the upper end of the operating lever 100 is provided with an external thread for connecting with the pick tool. The lower end of the handle 700 of the pick tool is provided with a threaded hole 710 for connecting with the operating lever 100. The upper end of the handle 700 is provided with a pick 800.

[0040] The pick tool is used to open heavy manhole covers made of concrete, cast iron, etc. After the pick tool is removed, the hook rod 200 of the lightweight manhole cover opening device can be unfolded to open the lightweight manhole cover. The miniaturized and lightweight tool can better control the force and protect the manhole cover from damage.

[0041] The two tools are coupled together, making it convenient for inspection and maintenance personnel to carry them while allowing them to select different tools to open the manhole covers according to the type of manhole cover to complete the inspection and maintenance work.

[0042] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined without conflict. The protection scope of this utility model should be defined as the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A conveniently storable manhole cover opening tool, characterized by, The utility model provides a light well lid opening device, the light well lid opening device includes operating rod (100), operating rod (100) upper end is equipped with storage groove (110), is equipped with hook rod (200) in storage groove (110), hook rod (200) upper end rotationally arranged in storage groove (110), hook rod (200) other end is equipped with operating hook (300), storage groove (110) bottom is equipped with the installation groove (120) with fixed clamping rod (400) cooperation, fixed clamping rod (400) is equipped with clamping block (500) on, operating rod (100) is equipped with the clamping groove (130) with installation groove (120) intercommunication, when hook rod (200) overturns to horizontal state, fixed clamping rod (400) moves to hook rod (200) downside after going up, rotates fixed clamping rod (400) and will clamping block (500) rotate to clamping groove (130) in.

2. A conveniently storable manhole cover opening tool according to claim 1, wherein The upper end of the hook rod (200) is rotatably installed in the storage groove (110) through a pin shaft, and the pin shaft is arranged vertically to the length direction of the storage groove (110).

3. The conveniently storable manhole cover opening tool of claim 1, wherein, The upper end of the fixed clamping rod (400) is provided with an elastic pad (410).

4. A conveniently storable manhole cover opening tool according to claim 3, wherein The elastic pad (410) is made of rubber.

5. The conveniently storable manhole cover opening tool of claim 1, wherein, The bottom of the installation groove (120) is provided with a spring sheet (600) for lifting the fixed clamping rod (400) upward.

6. The conveniently storable manhole cover opening tool of claim 1, wherein, The installation groove (120) includes a cylindrical groove (121) and a sliding groove (122) arranged on one side of the cylindrical groove (121), and the clamping block (500) passes out of the sliding groove (122) and moves up and down along the sliding groove (122).

7. The conveniently storable manhole cover opening tool of claim 1, wherein, The storage groove (110) includes a vertical open groove (111) and a hook groove (112) arranged on one side of the lower end of the vertical open groove (111), and the hook groove (112) is used for accommodating the operating hook (300).

8. A conveniently storable manhole cover opening tool according to claim 7, wherein, The length of the hook rod (200) is less than the length of the vertical open groove (111), and when the hook rod (200) is rotated to the vertical state, the hook rod (200) is provided with an operating gap at the lower end of the vertical open groove (111).

9. The conveniently storable manhole cover opening tool of claim 7, wherein, The upper end of the vertical open groove (111) is provided with a limiting groove (113), and when the hook rod (200) is rotated to the horizontal state, the end away from the operating hook (300) abuts on the upper side of the bottom of the limiting groove (113).

10. The conveniently storable manhole cover opening tool of claim 1, wherein, The upper end of the operating rod (100) is provided with an external thread for connecting with a pick tool, the lower end of a handle (700) of the pick tool is provided with a threaded hole (710) connected with the thread of the operating rod (100), and the upper end of the handle (700) is provided with a pick head (800).

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