Well lid excavation tool

Abstract

The utility model relates to the technical field of well lid opening tools, and discloses a well lid excavation tool which comprises a supporting rod, the bottom of the supporting rod is fixedly connected with a bending rod, the bottom of the bending rod is fixedly connected with a connecting column, the inner wall of the connecting column is slidably connected with a threaded rod, the bottom end of the connecting column is rotatably connected with a rotating ring, and the rotating ring is fixedly connected with the supporting rod. A threaded groove is formed in the outer wall of the threaded rod, the rotating ring is in threaded connection with the threaded groove, a prying head is rotationally connected to the bottom of the threaded groove, and a handle is fixedly connected to the top of the supporting rod. According to the well lid prying head, through threaded connection between the rotating ring and the threaded rod and sliding connection between the threaded rod and the connecting column, the threaded rod can be controlled to drive the prying head to be accurately inserted into a well lid gap only by rotating the rotating ring, the operation accuracy and efficiency are improved, the error risk is reduced through the stable and reliable structure, and damage to a well lid and a tool is avoided; and the operation safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of well lid opening tool, especially to a well lid opening tool. BACKGROUND

[0002] At present, the maintenance personnel often uses crowbar to open the well lid when checking the underground pipe network, but with the passage of time, the corrosion between the well lid and the well ring is serious, and the well lid opening slot is filled with silt, for this situation, if the traditional straight rod crowbar is used to open the well lid, the friction between the hand and the straight rod lever is needed to insert the lever head of the straight rod crowbar into the well lid opening slot, the process of opening the well lid is not only very laborious, but also low in efficiency, therefore, a well lid opening tool is needed.

[0003] Through the search, the patent for utility model with announcement number CN212246143U discloses a well lid crowbar, which is combined by a handle, a connecting rod and a lever to produce twice bending at the connecting place of the connecting rod and the handle and the connecting place of the connecting rod and the lever, and a lever head is arranged on the lever, wherein the connecting place of the connecting rod and the lever is used to bear the hammering of the user to achieve the technical effect that the lever head can be more easily inserted into the well lid opening slot filled with silt, to provide a better force point for the user, reduce the force needed to open the well lid, and improve the efficiency of opening the well lid, but in the actual use process, hammering is needed when encountering a small slot, which will deform the device in the process of hammering, and the lever head is inserted into the slot by knocking, which will cause the worker to be injured during knocking, reducing the practicability of the device. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a well lid opening tool, which aims at improving the practicability of the device in the process of hammering, and the problem that the lever head is inserted into the slot by knocking, which will cause the worker to be injured during knocking.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a well lid opening tool, which comprises a supporting rod, the bottom of the supporting rod is fixedly connected with a bent rod, the bottom of the bent rod is fixedly connected with a connecting column, the inner wall of the connecting column is slidably connected with a threaded rod, the bottom end of the connecting column is rotatably connected with a rotating ring, the outer wall of the threaded rod is provided with a threaded groove, the rotating ring is threadedly connected with the threaded groove, the bottom of the threaded groove is rotatably connected with a lever head, the top of the supporting rod is fixedly connected with a handle, the outer wall left side of the bent rod is provided with a reserved slot, the reserved slot is provided with a supporting mechanism inside, and the supporting mechanism is used to support the device to pry the well lid.

[0006] Through the technical scheme, the operator holds the handle at the top of the supporting rod, puts the pry head into the gap of the manhole cover, rotates the rotating ring, and since the threaded rod is in a sliding connection with the connecting column and is in a threaded connection with the rotating ring, when the rotating ring is rotated, the threaded rod will be displaced up and down, and rotating the rotating ring will cause the pry head to move downward and gradually embed into the gap of the manhole cover, and then downward pressure is applied to the top end of the supporting rod, so that the manhole cover can be pried open, and the arc structure of the bent rod is beneficial to the application of downward pressure.

[0007] As a further description of the above technical scheme:

[0008] The supporting mechanism comprises a rotating rod, the outer wall of the rotating rod is rotatably connected with a hollow rod, the inner wall of the hollow rod is slidably connected with a sliding rod, the outer wall top of the sliding rod is provided with a sliding groove on both sides, the inner wall of the sliding groove is fixedly connected with a spring, the far end of the spring is fixedly connected with a clamping block, the outer wall of the hollow rod is provided with a plurality of reserved holes on both sides, the clamping block is engaged with the reserved hole, and the bottom of the sliding rod is rotatably connected with a rotating seat.

[0009] Through the technical scheme, when the supporting mechanism needs to be activated, the sliding rod is pulled to slide in the hollow rod, and during the sliding of the sliding rod, the clamping block is subjected to the extrusion force of the inner wall of the hollow rod, so that the spring is compressed and the clamping block is retracted into the sliding groove. When the sliding rod slides to the appropriate position and the clamping block is aligned with the corresponding reserved hole, the clamping block is ejected and embedded in the reserved hole under the elastic force of the spring, so as to fix the extension length of the sliding rod. The rotating seat at the bottom of the sliding rod can rotate freely and can be adapted to different ground angles, thereby providing stable support and realizing support of the ground to provide a force supporting point for the device, which helps to easily pry the manhole cover.

[0010] As a further description of the above technical scheme:

[0011] The connecting part of the supporting rod and the bent rod is fixedly connected with a plurality of connecting blocks, and the adjacent connecting blocks are fixedly connected with a reinforcing ring.

[0012] Through the technical scheme, the connecting blocks can enhance the structural strength of the connecting part of the supporting rod and the bent rod, reduce the risk of deformation or damage of the connecting part due to stress, and the reinforcing ring further improves the stability and pressure resistance of the connecting part.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the bent rod is fixedly connected with a reinforcing rib on both sides, and the reinforcing ribs have the same curvature as the bent rod.

[0015] Through the technical scheme, the reinforcing rib effectively increases the bending strength of the bent rod, so that the bent rod can withstand greater force without deformation during prying of the manhole cover, thereby ensuring the reliability and service life of the tool.

[0016] Further description of the technical scheme is as follows:

[0017] The outer wall of the support rod is provided with an information board, and screws are threadedly connected around the outer wall of the information board.

[0018] Through the technical scheme, the information board is used for recording relevant information of the tool, and the information board is threadedly connected with the support rod through the screws, so that the information board is firmly installed and is not easy to fall off or be damaged.

[0019] Further description of the technical scheme is as follows:

[0020] The outer wall of the handle is fixedly connected with protective sleeves at the front and rear sides, and anti-skid lines are formed around the outer walls of the two protective sleeves.

[0021] The protective sleeves can increase the comfort of the user when holding the handle, and reduce hand fatigue, and the anti-skid lines increase the friction between the hand and the handle, thereby preventing the hand from slipping when the tool is used to pry the manhole cover.

[0022] Further description of the technical scheme is as follows:

[0023] Hexagonal holes are formed around the outer wall of the rotating ring, and a hexagonal rod is arranged on the inner wall of the hexagonal hole at the front side.

[0024] Through the technical scheme, when the rotating ring needs to be rotated, the hexagonal rod is inserted into the hexagonal hole at the front side, so that the rotating ring can be rotated more easily and conveniently.

[0025] Further description of the technical scheme is as follows:

[0026] Sliding strips are fixedly connected to the left and right sides of the threaded rod, sliding grooves are formed in the left and right sides of the connecting column, and the two sliding strips are slidingly connected to the corresponding sliding grooves.

[0027] Through the technical scheme, the sliding strips are slidingly connected with the sliding grooves, so that the sliding strips play a guiding and limiting role in the up-and-down sliding of the threaded rod, and the threaded rod can be kept stable during the sliding process and will not be deviated.

[0028] The utility model has the following beneficial effects:

[0029] 1. In this utility model, the threaded connection between the rotating ring and the threaded rod, and the sliding connection between the threaded rod and the connecting column, make the operation convenient and precise. Simply rotating the rotating ring controls the threaded rod to drive the pry head to accurately insert into the gap of the manhole cover, eliminating the need to laboriously find the prying point. This not only improves the accuracy and efficiency of operation but also reduces manpower consumption. At the same time, the stable and reliable structure reduces the risk of errors, avoids damage to the manhole cover and tools, ensures the safety of operation and the service life of tools, and makes manhole cover excavation work easier and more efficient.

[0030] 2. In this utility model, the adjustable slide bar design allows operators to easily extend it to a suitable length and fix it, adapting to different working scenarios. The cooperation between the locking block and the reserved hole ensures that the slide bar length is fixed and stable, and is not easy to slip. The free rotation of the rotating seat can conform to the ground angle, providing stable support and dispersing the reaction force when prying the manhole cover, thereby effectively increasing the stability of the entire device, reducing the burden on operators when prying the manhole cover, and improving work efficiency. Attached Figure Description

[0031] Figure 1 This is a perspective view of a manhole cover excavation tool proposed in this utility model;

[0032] Figure 2 This is a partial structural exploded view of a manhole cover excavation tool proposed in this utility model;

[0033] Figure 3 This is a cross-sectional view of the bending rod of a manhole cover excavation tool proposed in this utility model;

[0034] Figure 4 This is a schematic diagram of the support mechanism for a manhole cover excavation tool proposed in this utility model;

[0035] Figure 5 This is a cross-sectional view of the hollow rod of a manhole cover excavation tool proposed in this utility model.

[0036] Legend:

[0037] 1. Support rod; 2. Support mechanism; 201. Rotating rod; 202. Hollow rod; 203. Sliding rod; 204. Sliding groove; 205. Spring; 206. Locking block; 207. Reserved hole; 208. Rotating seat; 3. Bending rod; 4. Connecting column; 5. Threaded rod; 6. Rotating ring; 7. Threaded groove; 8. Pry bar; 9. Handle; 10. Reserved groove; 11. Connecting block; 12. Reinforcing ring; 13. Reinforcing rib; 14. Information board; 15. Screw; 16. Protective sleeve; 17. Anti-slip texture; 18. Hexagonal hole; 19. Hexagonal rod; 20. Sliding strip; 21. Sliding groove. Detailed Implementation

[0038] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0039] With reference to Figure 1 , Figure 2 and Figure 3 , the present utility model provides an embodiment: a well lid excavation tool, including support rod 1 for providing main support and operation holding part, ensure the stability and convenience of operation, the bottom of support rod 1 is fixedly connected with bending rod 3, for changing the transmission direction and angle of force, to adapt to the position of well lid and prying demand, the bottom of bending rod 3 is fixedly connected with connecting column 4, for connecting and supporting subsequent components, the inner wall of connecting column 4 is slidably connected with threaded rod 5, can slide up and down in connecting column 4, to realize the prying action to well lid, the bottom end of connecting column 4 is rotatably connected with rotating ring 6, for controlling the up and down movement of threaded rod 5 by rotating, the outer wall of threaded rod 5 is provided with thread groove 7, cooperates with rotating ring 6, realizes the lifting adjustment of threaded rod 5;The bottom of thread groove 7 is rotatably connected with prying head 8, directly contacts with well lid and applies prying force, the top of support rod 1 is fixedly connected with handle 9, facilitates operator holding and force application, the left side of the outer wall of bending rod 3 is provided with reserved slot 10, for accommodating and installing support mechanism 2, the inside of reserved slot 10 is provided with support mechanism 2, support mechanism 2 is used for supporting device prying well lid, increases the stability and safety of operation;The connecting place of support rod 1 and bending rod 3 is fixedly connected with a plurality of connecting blocks 11, for enhancing the structural strength of the connecting place of support rod 1 and bending rod 3, a plurality of connecting blocks 11 are fixedly connected with reinforcing ring 12 between adjacent ones, further improve the stability and reliability of the connecting place;The outer wall of bending rod 3 is fixedly connected with reinforcing rib 13 on the front and back sides, reinforcing rib 13 is used for increasing the bending strength and rigidity of bending rod 3, two reinforcing ribs 13 are same with the radian of bending rod 3, to ensure the rationality of structure and the optimization of mechanical properties;

[0040] Specifically, the operator holds the handle 9 at the top of the support rod 1, inserts the pry head 8 into the gap of the manhole cover, and rotates the rotating ring 6. Since the threaded rod 5 is in sliding connection with the connecting column 4 and is in threaded connection with the rotating ring 6, the threaded rod 5 moves up and down when the rotating ring 6 is rotated. Rotating the rotating ring 6 makes the pry head 8 move downward and gradually insert into the gap of the manhole cover. Then, the top end of the support rod 1 is pressed downward, and the manhole cover can be pried open. The arc-shaped structure of the bent rod 3 facilitates the application of downward pressure. The connecting block 11 can enhance the structural strength of the connecting part of the support rod 1 and the bent rod 3, reduce the risk of deformation or damage of the connecting part due to stress, and further improve the stability and compression resistance of the connecting part. The reinforcing rib 13 effectively increases the bending strength of the bent rod 3, so that it can withstand greater force without deformation during the process of prying the manhole cover, ensuring the reliability and service life of the tool.

[0041] With reference to Figure 1 , Figure 4 and Figure 5 , the support mechanism 2 includes a rotating rod 201 fixedly connected to the inner wall of the middle part of the reserved groove 10, which serves to support and connect the hollow rod 202, so that it can rotate around the rotating rod 201. The outer wall of the rotating rod 201 is rotatably connected to the hollow rod 202, which can rotate relative to the rotating rod 201 to realize the unfolding and storage of the support mechanism 2. The inner wall of the hollow rod 202 is slidably connected to the sliding rod 203, which can slide within the hollow rod 202 to adjust the length of the support mechanism 2. The outer wall top of the sliding rod 203 is provided with a sliding groove 204 on both sides, and the two sliding grooves 204 provide installation and movement space for the spring 205 and the clamping block 206. The inner wall of the two sliding grooves 204 is fixedly connected with the spring 205, which provides elastic force for the clamping block 206. The distal end of the two springs 205 is fixedly connected with the clamping block 206, which cooperates with the reserved hole 207 to fix the length of the sliding rod 203 extending out of the hollow rod 202. The outer wall of the hollow rod 202 is provided with a plurality of reserved holes 207 on the upper and lower sides, which cooperate with the clamping block 206 to realize the adjustment and fixation of different lengths. The two clamping blocks 206 are engaged with the plurality of reserved holes 207, thereby fixing the position of the sliding rod 203. The bottom of the sliding rod 203 is rotatably connected with the rotating seat 208, which can freely rotate to adapt to different ground conditions and provide stable support.

[0042] Specifically, when the support mechanism 2 needs to be used, the slide rod 203 is pulled to slide in the hollow rod 202. During the sliding of the slide rod 203, the clamping block 206 is extruded by the inner wall of the hollow rod 202, the spring 205 is compressed, and the clamping block 206 is retracted into the sliding groove 204. When the slide rod 203 slides to the appropriate position and the clamping block 206 is aligned with the corresponding reserved hole 207, the clamping block 206 is ejected and clamped into the reserved hole 207 under the elastic force of the spring 205, so as to fix the extension length of the slide rod 203. The rotating seat 208 at the bottom of the slide rod 203 can rotate freely to adapt to different ground angles and provide stable support to support the ground and provide a force support point for the device, so that the manhole cover can be easily pried up.

[0043] With reference to Figure 1 , Figure 2 and Figure 3 , the outer wall of the support rod 1 is provided with an information board 14 on the right side, which is used for recording the relevant information of the tool, and the user can easily obtain important information. The outer wall of the information board 14 is screw-connected with screws 15 around, which plays a role in fastening connection and ensures that the information board 14 is firmly installed on the support rod 1. The information board 14 is screw-connected with the support rod 1 through the screws 15. The outer wall of the handle 9 is fixedly connected with protective sleeves 16 on the front and rear sides, which can increase the holding comfort of the handle 9 and reduce hand fatigue. The outer wall of the two protective sleeves 16 is provided with anti-slip patterns 17 around, which increases the friction between the hand and the protective sleeve 16, prevents the hand from slipping during operation, and improves the safety and stability of operation.

[0044] Specifically, the information board 14 is used for recording the relevant information of the tool and is screw-connected with the support rod 1 through the screws 15, which ensures that the information board 14 is firmly installed and is not easy to fall off or be damaged. The protective sleeve 16 can increase the comfort when the user holds the handle 9 and reduce hand fatigue. The anti-slip patterns 17 increase the friction between the hand and the handle 9, prevent the hand from slipping when the tool is used to pry the manhole cover, and make the operation more safe and stable.

[0045] With reference to Figure 1 , Figure 2 and Figure 4The outer wall of the rotating ring 6 is provided with six-hole 18 around, which is convenient for inserting the six-hole rod 19, so that the operation of rotating the rotating ring 6 is more labor-saving, the inner wall of the front six-hole 18 is provided with the six-hole rod 19, the six-hole rod 19 is matched with the six-hole 18, and a force point for rotating the rotating ring 6 is provided; the outer wall of the threaded rod 5 is fixedly connected with the slide strip 20 on the left and right sides, which is used for cooperating with the sliding groove 21, so as to guarantee the stability and directionality of the sliding of the threaded rod 5, the inner wall of the connecting column 4 is provided with the sliding groove 21 on the left and right sides, the sliding groove 21 provides a sliding track for the slide strip 20, the two slide strips 20 are slidably connected with the corresponding sliding grooves 21 respectively, the rotation of the threaded rod 5 is limited, so that the threaded rod 5 can only slide up and down along the sliding groove 21, and thus precise lifting adjustment is realized;

[0046] Specifically, when the rotating ring 6 needs to be rotated, the six-hole rod 19 is inserted into the front six-hole 18, the rotating ring 6 can be more easily and labor-savingly rotated, and the operation is more convenient; the slide strip 20 is slidably connected with the sliding groove 21, the slide strip 20 plays a guiding and limiting role in the up-down sliding of the threaded rod 5, and the stability of the threaded rod 5 in the sliding process is ensured, and deviation does not occur.

[0047] Working principle: first, the operator holds the manhole cover excavation tool by hand, holds the handle 9 at the top of the supporting rod 1, aligns the pry head 8 to the manhole cover gap, and rotates the rotating ring 6; when the rotating ring 6 is rotated, the rotating ring 6 is in threaded connection with the threaded rod 5, and the threaded rod 5 is in sliding connection with the connecting column 4, so that the rotation of the rotating ring 6 is converted into the up-down movement of the threaded rod 5; when the rotating ring 6 is rotated clockwise, the threaded rod 5 moves downward, and the pry head 8 gradually penetrates into the manhole cover gap; after the pry head 8 is in place, the top end of the supporting rod 1 is pressed downward, the arc structure of the bent rod 3 can effectively transmit the pressure, so that the pry head 8 generates sufficient prying force, and the manhole cover is smoothly pried open;

[0048] And by pulling the slide rod 203 outward. In this process, the clamping block 206 is extruded by the inner wall of the hollow rod 202, so that the spring 205 is compressed, and the clamping block 206 is retracted into the sliding groove 204. Continue to pull the slide rod 203 until the clamping block 206 is aligned with the corresponding reserved hole 207, the spring 205 rebounds to push the clamping block 206 into the reserved hole 207, and the extension length of the slide rod 203 is fixed. The rotating seat 208 at the bottom of the slide rod 203 can be freely rotated, which can adjust the position according to the ground angle, and realize stable support. In this way, the supporting mechanism 2 provides a powerful force support point for the whole device, disperses the reaction force when prying the manhole cover, so that the operator can pry the manhole cover more easily.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A manhole cover excavation tool comprising a support bar (1), characterised in that: The bottom of the support rod (1) is fixedly connected with a bent rod (3), the bottom of the bent rod (3) is fixedly connected with a connecting column (4), the inner wall of the connecting column (4) is slidably connected with a threaded rod (5), the bottom end of the connecting column (4) is rotatably connected with a rotating ring (6), the outer wall of the threaded rod (5) is provided with a threaded groove (7), the rotating ring (6) is threadedly connected with the threaded groove (7), the bottom of the threaded groove (7) is rotatably connected with a pry head (8), the top of the support rod (1) is fixedly connected with a handle (9), the outer wall left side of the bent rod (3) is provided with a reserved slot (10), the inside of the reserved slot (10) is provided with a supporting mechanism (2), and the supporting mechanism (2) is used for supporting the device to pry the manhole cover.

2. A pit lid excavation tool according to claim 1, characterised in that: The supporting mechanism (2) comprises a rotating rod (201), the rotating rod (201) is fixedly connected to the middle part of the inner wall of the reserved slot (10), the outer wall of the rotating rod (201) is rotatably connected with a hollow rod (202), the inner wall of the hollow rod (202) is slidably connected with a sliding rod (203), the outer wall top of the sliding rod (203) is provided with a sliding groove (204) on the left and right sides, the inner wall of the two sliding grooves (204) is fixedly connected with a spring (205), the far end of the two springs (205) is fixedly connected with a clamping block (206), the outer wall of the hollow rod (202) is provided with a plurality of reserved holes (207) on the upper and lower sides, the two clamping blocks (206) are clamped with the plurality of reserved holes (207), and the bottom of the sliding rod (203) is rotatably connected with a rotating seat (208).

3. A pit lid excavation tool according to claim 1, characterised in that: The connecting part of the support rod (1) and the bent rod (3) is fixedly connected with a plurality of connecting blocks (11), and the adjacent connecting blocks (11) are fixedly connected with a reinforcing ring (12).

4. A pit lid excavation tool according to claim 1, characterised in that: The outer wall of the bent rod (3) is fixedly connected with a reinforcing rib (13) on the front and back sides, and the reinforcing ribs (13) have the same curvature as the bent rod (3).

5. A pit lid excavation tool according to claim 1, characterised in that: The outer wall right side of the support rod (1) is provided with an information board (14), the outer wall of the information board (14) is threadedly connected with a screw (15) around, and the information board (14) is threadedly connected with the support rod (1) through the screw (15).

6. A pit lid excavation tool according to claim 1, characterised in that: The outer wall of the handle (9) is fixedly connected with a protective sleeve (16) on the front and back sides, and the outer wall of the two protective sleeves (16) is provided with an anti-skid line (17) around.

7. A pit lid excavation tool according to claim 1, characterised in that: The outer wall of the rotating ring (6) is provided with a hexagonal hole (18) around, and the inner wall of the front hexagonal hole (18) is provided with a hexagonal rod (19).

8. A pit lid excavation tool according to claim 1, characterised in that: The outer wall of the threaded rod (5) is fixedly connected with a sliding strip (20) on the left and right sides, the inner wall of the connecting column (4) is provided with a sliding groove (21) on the left and right sides, and the two sliding strips (20) are respectively slidably connected with the corresponding sliding grooves (21).

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