CN220788004U - Tool convenient for opening well lid - Google Patents

Abstract

The utility model relates to a tool for conveniently opening a well cover, which comprises a support frame; support columns are fixedly connected around the top wall of the support frame; the top walls of the two pairs of support columns are fixedly connected with placing blocks; the side wall of the placement block is provided with a first chute; the side wall of the first chute is provided with a threaded rod in a rotating mode; the outer circular wall of the threaded rod is in threaded connection with a first sliding block, and the first sliding block horizontally slides in a first sliding groove; the side wall of the placing block is provided with a second chute, and the second chute and the first chute are horizontally symmetrical relative to the supporting frame; the side wall of the second chute is fixedly connected with a guide rod; the utility model provides a tool for conveniently opening a well cover, which solves the problems that in the prior art, a worker generally adopts a hand-held well cover hook to open the well cover, once the well cover is blocked by foreign matters, the well cover is difficult to open, and the well cover can be opened only with great effort, even can not be opened, so that the working efficiency is greatly influenced.

Description

Tool convenient for opening well lid

Technical Field

The utility model belongs to the technical field of well lid opening, and particularly relates to a tool convenient for well lid opening.

Background

The road drainage pipeline maintainer often needs to open the well lid in daily work, looks over the rivers situation in the inspection shaft, because the type of inspection shaft lid is various to there is not unified specialized tool, and some well lids are being installed under the pavement, are being rolled by the wheel in addition, foreign matter clamping stagnation, well circle corrosion etc. reason's influence, lead to opening the degree of difficulty great, work efficiency also seriously receives the influence.

In the prior art, a worker opens a well lid by adopting a hand-held well lid hook, once the well lid is blocked by foreign matters, the well lid is difficult to open, and the well lid can be opened only by a large force, even under the condition that the well lid cannot be opened, the work efficiency is greatly influenced, and therefore, the utility model provides a tool convenient for opening the well lid.

Disclosure of Invention

In order to overcome the defects in the prior art, the problem that in the prior art, a worker opens a well lid by adopting a hand-held well lid hook is solved, once the well lid is blocked by foreign matters, the well lid is difficult to open, and the well lid can be opened only by a large force, even can not be opened, so that the work efficiency is greatly influenced is solved.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a tool for conveniently opening a well cover, which comprises a support frame; support columns are fixedly connected around the top wall of the support frame; the top walls of the two pairs of support columns are fixedly connected with placing blocks; the side wall of the placement block is provided with a first chute; the side wall of the first chute is provided with a threaded rod in a rotating mode; the outer circular wall of the threaded rod is in threaded connection with a first sliding block, and the first sliding block horizontally slides in a first sliding groove; the side wall of the placing block is provided with a second chute, and the second chute and the first chute are horizontally symmetrical relative to the supporting frame; the side wall of the second chute is fixedly connected with a guide rod; the outer circular wall of the guide rod is connected with a second sliding block in a sliding manner, and the second sliding block horizontally slides in a second sliding groove; the side wall of the second sliding block is fixedly connected with a supporting rod, and the other end of the supporting rod is fixedly connected with the side wall of the first sliding block; the side wall of the placing block is fixedly connected with a mounting plate; the side wall of the mounting plate is rotationally connected with a rotating handle, and the rotating handle is connected with a threaded rod through an adjusting assembly; the outer circular wall of the supporting rod is rotatably connected with a rotating ring; the outer circular wall of the rotating ring is provided with a handle, and the handle is connected with the rotating ring through a telescopic component; a pull rod is fixedly connected to the outer circular wall of the rotating ring; connecting rods are rotatably connected to the two side walls of the pull rod; and a lifting rod is rotatably connected between the side walls of the pair of connecting rods, and a supporting device is arranged at the bottom end of the lifting rod.

Preferably, the adjusting assembly comprises a rotating shaft; the side wall of the placing block is rotationally connected with a rotating shaft, and one end of the rotating shaft extends into the side wall of the placing block and is fixedly connected with the end part of the threaded rod; the end part of the rotating shaft is fixedly connected with a turbine; the side wall of the mounting plate is rotationally connected with a worm, the worm is meshed with the turbine, and one end of the worm extends into the side wall of the mounting plate to be fixedly connected with the rotating handle.

Preferably, the telescopic component comprises a sleeve, and the outer circular wall of the rotating ring is fixedly connected with the sleeve; the inner circular wall of the sleeve is connected with a loop bar in a sliding manner, and the end part of the loop bar is fixedly connected with the end part of the grip; a group of limiting holes are uniformly formed in the outer circumferential wall of the sleeve; the outer circular wall of the loop bar is provided with a circular groove, and the inner diameter of the circular groove is the same as the inner diameter of the limiting hole; a limiting protrusion is connected in a sliding manner in the circular groove; the bottom wall of the limiting protrusion is fixedly connected with a first spring, and the other end of the first spring is fixedly connected with the inner wall of the circular groove.

Preferably, the supporting device comprises a placing groove, and the two side walls of the lifting rod are provided with placing grooves; the inner side walls of the placing grooves are hinged with the supporting blocks, and torsion springs are arranged at the hinged positions.

Preferably, a third sliding groove is formed in the top wall of the pair of placing grooves; a limiting block is connected in a sliding manner in the third sliding groove; the top wall of the limiting block is fixedly connected with a second spring, and the top end of the second spring is fixedly connected with the top wall of the third chute; a fourth chute is formed in the side wall of the lifting rod and is communicated with the third chute; the side wall of the limiting block is fixedly connected with a pull handle, and the pull handle vertically slides in the fourth sliding groove.

Preferably, the top wall of the support frame is provided with a support plate, and two side walls of the support plate are fixedly connected with the side walls of the support column through fixing rods; a fifth sliding groove is formed in the top wall of the supporting plate; the bottom wall of the fifth chute is provided with a first through groove; the side wall of the fifth sliding chute is connected with a sliding plate in a sliding manner, and the top wall of the sliding plate is fixedly connected with the outer circular wall of the supporting plate through a pair of connecting plates; the limiting through groove is formed in the top wall of the sliding plate, and the outer side wall of the lifting rod is attached to the limiting through groove.

Preferably, the periphery of the bottom wall of the support frame is fixedly connected with a universal wheel; bolts are connected with the periphery of the top wall of the support frame in a threaded manner.

Preferably, the bottom ends of the pair of limiting blocks are all inclined planes.

The beneficial effects of the utility model are as follows:

1. according to the tool convenient for opening the well lid, the support frame is moved to the position above the well lid to be opened; through rotatory rotation handle, rotate the spanner and rotate the threaded rod that drives through adjusting part and place in the first spout of piece lateral wall and rotate, the threaded rod rotates and makes first slider horizontal migration, first slider removes and drives bracing piece horizontal migration, thereby make the lifter remove to the trompil position on well lid surface, through upwards lifting handle, make the lifter bottom stretch into the well lid trompil, hold the well lid through the jacking device of lifter bottom, then press the handle downwards, utilize lever principle to lift up the well lid, fine avoided the well lid to receive the foreign matter jamming, lead to opening the degree of difficulty great, need great effort just can open, even unable condition of opening, the handle can adjust the distance of handle and swivel ring through telescopic assembly, thereby further the practicality has been improved.

2. According to the tool convenient for opening the well lid, the rotary handle is rotated, so that the support rod horizontally moves, and the slide plate is driven to synchronously move by the horizontal movement of the support rod through the connecting plate; through the spacing logical groove of slide roof for lift by crane the vertical removal of pole, avoid when lifting by crane the well lid, the well lid takes place to rock and leads to the well lid to take place the condition of side to incline.

The foregoing summary is merely an overview of the present application, and is provided to enable one of ordinary skill in the art to make more clear the present application and to be practiced according to the teachings of the present application and to make more readily understood the above-described and other objects, features and advantages of the present application, as well as by reference to the following detailed description and accompanying drawings.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of the present application and are not to be construed as limiting the application.

In the drawings of the specification:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the structure of the present utility model;

FIG. 5 is a partial cross-sectional view of the present utility model;

FIG. 6 is a second partial cross-sectional view of the present utility model;

fig. 7 is a partial exploded view of the present utility model.

Reference numerals referred to in the above drawings are explained as follows:

1. a support frame; 2. a support column; 3. placing a block; 4. a first chute; 5. a threaded rod; 6. a first slider; 7. a second chute; 8. a guide rod; 9. a second slider; 10. a support rod; 11. a mounting plate; 12. rotating the handle; 13. a rotating ring; 14. a grip; 15. a pull rod; 16. a connecting rod; 17. lifting the boom; 18. a rotating shaft; 19. a turbine; 20. a worm; 21. a sleeve; 22. a loop bar; 23. a limiting hole; 24. a circular groove; 25. a limit protrusion; 26. a first spring; 27. a placement groove; 28. a support block; 29. a third chute; 30. a limiting block; 31. a second spring; 32. a fourth chute; 33. a pull handle; 34. a support plate; 35. a fifth chute; 36. a first through groove; 37. a slide plate; 38. limiting through grooves; 39. a universal wheel; 40. and (5) a bolt.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples and are not intended to limit the scope of protection of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in the embodiments may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the description of specific embodiments only and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that there may be three relationships, e.g., a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In this application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this application is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of the "examination guideline," the expressions "greater than", "less than", "exceeding", and the like are understood to exclude the present number in this application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of groups", "a plurality of" and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as terms of orientation or positional relationship based on the specific embodiments or figures, and are merely for convenience of description of the specific embodiments of the present application or ease of understanding of the reader, and do not indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation, and therefore are not to be construed as limiting of the embodiments of the present application.

Unless specifically stated or limited otherwise, in the description of the embodiments of the present application, the terms "mounted," "connected," "affixed," "disposed," and the like are to be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to the specific circumstances.

As shown in fig. 1 to 7, the tool for conveniently opening a well cover comprises a support frame 1; support columns 2 are fixedly connected around the top wall of the support frame 1; the top walls of the two pairs of support columns 2 are fixedly connected with a placement block 3; the side wall of the placement block 3 is provided with a first chute 4; the side wall of the first chute 4 is provided with a threaded rod 5 in a rotating mode; the outer circular wall of the threaded rod 5 is in threaded connection with a first sliding block 6, and the first sliding block 6 horizontally slides in the first sliding groove 4; the side wall of the placement block 3 is provided with a second chute 7, and the second chute 7 and the first chute 4 are horizontally symmetrical relative to the support frame 1; the side wall of the second chute 7 is fixedly connected with a guide rod 8; the outer circular wall of the guide rod 8 is connected with a second sliding block 9 in a sliding manner, and the second sliding block 9 horizontally slides in the second sliding groove 7; the side wall of the second sliding block 9 is fixedly connected with a supporting rod 10, and the other end of the supporting rod 10 is fixedly connected with the side wall of the first sliding block 6; the side wall of the placement block 3 is fixedly connected with a mounting plate 11; the side wall of the mounting plate 11 is rotatably connected with a rotary handle 12, and the rotary handle 12 is connected with the threaded rod 5 through an adjusting component; the outer circular wall of the supporting rod 10 is rotatably connected with a rotating ring 13; the outer circular wall of the rotating ring 13 is provided with a handle 14, and the handle 14 is connected with the rotating ring 13 through a telescopic component; the outer circular wall of the rotating ring 13 is fixedly connected with a pull rod 15; the two side walls of the pull rod 15 are rotatably connected with a connecting rod 16; a lifting rod 17 is rotatably connected between the side walls of the pair of connecting rods 16, and a supporting device is arranged at the bottom end of the lifting rod 17; when the manhole cover is in operation, the support frame 1 is moved to the position above the manhole cover to be opened; through rotatory rotation handle 12, rotate the spanner and rotate the threaded rod 5 rotation in the first spout 4 of placing the piece 3 lateral wall through adjusting part drive, threaded rod 5 rotation makes first slider 6 horizontal migration, first slider 6 removes and drives bracing piece 10 horizontal migration, thereby make the lifter 17 remove to the trompil position on well lid surface, through upwards pulling handle 14, make the lifter 17 bottom stretch into the well lid trompil, hold the well lid through the support device of lifting handle 17 bottom, then press handle 14 downwards, utilize lever principle to lift the well lid, fine avoided the well lid to receive the foreign matter jamming, the degree of difficulty of opening is great, need great effort just can be opened, even unable open the condition, handle 14 can adjust the distance of handle 14 and swivel ring 13 through flexible subassembly, thereby further improved the practicality.

The adjustment assembly includes a spindle 18; the side wall of the placing block 3 is rotatably connected with a rotating shaft 18, and one end of the rotating shaft 18 extends into the side wall of the placing block 3 and is fixedly connected with the end part of the threaded rod 5; the end part of the rotating shaft 18 is fixedly connected with a turbine 19; the side wall of the mounting plate 11 is rotatably connected with a worm 20, the worm 20 is meshed with the turbine 19, and one end of the worm 20 extends into the side wall of the mounting plate 11 to be fixedly connected with the rotary handle 12; when the worm gear is in operation, the rotating handle 12 is rotated to drive the worm 20 to rotate, and the worm 20 is rotated to drive the turbine 19 to rotate; the turbine 19 rotates to drive the rotating shaft 18 to rotate, and the rotating shaft 18 rotates the threaded rod 5 to rotate.

The telescopic component comprises a sleeve 21, and the outer circular wall of the rotating ring 13 is fixedly connected with the sleeve 21; the inner circular wall of the sleeve 21 is connected with a loop bar 22 in a sliding way, and the end part of the loop bar 22 is fixedly connected with the end part of the grip 14; a group of limiting holes 23 are uniformly formed in the outer circular wall of the sleeve 21; the outer circular wall of the loop bar 22 is provided with a circular groove 24, and the inner diameter of the circular groove 24 is the same as the inner diameter of the limiting hole 23; a limit protrusion 25 is slidably connected in the circular groove 24; the bottom wall of the limiting protrusion 25 is fixedly connected with a first spring 26, and the other end of the first spring 26 is fixedly connected with the inner wall of the circular groove 24; when the handle 14 is lifted in operation, the handle 14 drives the loop bar 22 to move, when the limit protrusion 25 in the circular groove 24 on the outer circular wall of the loop bar 22 passes through the limit hole 23 on the outer circular wall of the sleeve, the limit protrusion 25 moves upwards until the limit hole 23 extends out by the elasticity of the first spring 26, the loop bar 22 is limited, and the distance between the handle 14 and the rotating ring 13 can be adjusted by pressing the limit protrusion 25 and moving the handle 14.

The supporting device comprises a placing groove 27, and the placing groove 27 is formed in each of the two side walls of the lifting rod 17; the inner side walls of the pair of placing grooves 27 are hinged with supporting blocks 28, and torsion springs are arranged at the hinged positions; during operation, the lifting rod 17 stretches into the well lid, and the supporting blocks 28 in the placing grooves 27 on two sides of the lifting rod 17 are unfolded under the action of the torsion springs, so that the well lid is supported, and the well lid is stable during lifting.

A third chute 29 is formed on the top wall of the pair of placing grooves 27; a limiting block 30 is slidably connected to the third chute 29; the top wall of the limiting block 30 is fixedly connected with a second spring 31, and the top end of the second spring 31 is fixedly connected with the top wall of the third chute 29; a fourth chute 32 is formed in the side wall of the lifting rod 17, and the fourth chute 32 is communicated with the third chute 29; a pull handle 33 is fixedly connected to the side wall of the limiting block 30, and the pull handle 33 vertically slides in the fourth chute 32; when the lifting device works, the pull handle 33 is lifted upwards, and the pull handle 33 drives the limiting block 30 to move upwards, so that the limiting of the supporting block 28 is relieved, and the supporting block 28 rotates downwards to be in a horizontal state under the action of the torsion spring.

The top wall of the support frame 1 is provided with a support plate 34, and both side walls of the support plate 34 are fixedly connected with the side walls of the support column 2 through fixing rods; a fifth chute 35 is formed in the top wall of the supporting plate 34; the bottom wall of the fifth chute 35 is provided with a first through groove 36; the side wall of the fifth chute 35 is connected with a slide plate 37 in a sliding way, and the top wall of the slide plate 37 is fixedly connected with the outer circular wall of the supporting plate 34 through a pair of connecting plates; a limit through groove 38 is formed in the top wall of the sliding plate 37, and the outer side wall of the lifting rod 17 is attached to the inside of the limit through groove 38; when the sliding plate 37 is in operation, the rotating handle 12 is rotated, the rotating handle 12 rotates to enable the supporting rod 10 to horizontally move, and the supporting rod 10 horizontally moves to drive the sliding plate 37 to synchronously move through the connecting plate; through the spacing groove 38 of slide 37 roof for lifting by crane pole 17 vertical movement avoids when lifting by crane the well lid, and the well lid takes place to rock the condition that leads to the well lid to take place to incline.

The periphery of the bottom wall of the support frame 1 is fixedly connected with a universal wheel 39; bolts 40 are connected with the periphery of the top wall of the support frame 1 in a threaded manner; during operation, all around all rigid couplings have the universal wheel 39 to conveniently remove this device through support frame 1 diapire, all around all threaded connection has bolt 40 through rotatory support frame 1 roof for bolt 40 bottom moves down, until with ground contact, makes more stable when lifting by crane the well lid.

The bottom ends of the pair of limiting blocks 30 are all inclined planes; during operation, through the inclined plane setting that is of stopper 30 bottom, through upwards rotating support block 28, support block 28 tip and the inclined plane contact that stopper 30 bottom plate arrived for stopper 30 upwards slides, until support block 28 gets into the standing groove 27 completely in the back, stopper 30 moves down under the effect of spring, thereby carries out the spacing to support block 28.

The working principle is that the support frame 1 is moved to the position above the manhole cover to be opened; by rotating the rotating handle 12, the rotating handle 12 rotates to drive the worm 20 to rotate, and the worm 20 rotates to drive the turbine 19 to rotate; the turbine 19 rotates to drive the rotating shaft 18 to rotate, the rotating shaft 18 rotates to drive the threaded rod 5 in the first sliding groove 4 on the side wall of the placing block 3 to rotate, the threaded rod 5 rotates to enable the first sliding block 6 to horizontally move, the first sliding block 6 moves to drive the supporting rod 10 to horizontally move, so that the lifting rod 17 moves to the hole position on the surface of the well cover, the bottom end of the lifting rod 17 stretches into the hole of the well cover by lifting the handle 14 upwards, the supporting blocks 28 in the placing grooves 27 on the two sides of the lifting rod 17 are unfolded under the action of torsion springs, so that the well cover is supported, the well cover is enabled to be more stable during lifting, then the handle 14 is pressed downwards, the well cover is lifted by utilizing the lever principle, the situation that the well cover is blocked by foreign matters, the opening difficulty is large, the well can be opened only by needing large force, even the opening cannot be achieved is well avoided, the handle 14 is driven to move by lifting the handle 14, when the limit protrusions 25 in the circular groove 24 on the outer circular wall of the handle 22 pass through the limit holes 23 on the outer circular wall of the sleeve, the limit protrusions 25 are enabled to move upwards through the elasticity of the first springs 26, the limit protrusions 25 until the limit protrusions 25 stretch out of the limit holes 23, and the limit protrusions 22 stretch out of the limit holes 23, and the limit rings 14 are adjusted, and the practical distance can be further adjusted, and the distance between the handle 14 and the handle 14 can be adjusted; by rotating the rotating handle 12, the rotating handle 12 rotates to enable the support rod 10 to horizontally move, and the support rod 10 horizontally moves to drive the sliding plate 37 to synchronously move through the connecting plate; the lifting rod 17 moves vertically through the limit through groove 38 on the top wall of the sliding plate 37, so that the situation that the manhole cover inclines due to shaking of the manhole cover during lifting of the manhole cover is avoided; the universal wheels 39 are fixedly connected to the periphery of the bottom wall of the support frame 1 to facilitate movement of the device, and the bolts 40 are connected to the periphery of the top wall of the rotary support frame 1 in a threaded manner, so that the bottom ends of the bolts 40 move downwards until the bottom ends are contacted with the ground, and the manhole cover is lifted more stably; through stopper 30 bottom for the inclined plane setting, through upwards rotating support 28, support 28 tip and the inclined plane contact that stopper 30 bottom plate arrived for stopper 30 upwards slides, until support 28 gets into the standing groove 27 completely in the back, stopper 30 moves down under the effect of spring, thereby carries out the spacing to support 28.

Those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (8)

1. A tool for conveniently opening a well cover, which is characterized by comprising a supporting frame (1); support columns (2) are fixedly connected around the top wall of the support frame (1); the top walls of the two pairs of support columns (2) are fixedly connected with a placement block (3); a first chute (4) is formed in the side wall of the placement block (3); the side wall of the first chute (4) is rotated with a threaded rod (5); the outer circular wall of the threaded rod (5) is in threaded connection with a first sliding block (6), and the first sliding block (6) horizontally slides in the first sliding groove (4); the side wall of the placement block (3) is provided with a second chute (7), and the second chute (7) and the first chute (4) are horizontally symmetrical relative to the support frame (1); the side wall of the second chute (7) is fixedly connected with a guide rod (8); the outer circular wall of the guide rod (8) is connected with a second sliding block (9) in a sliding manner, and the second sliding block (9) horizontally slides in the second sliding groove (7); the side wall of the second sliding block (9) is fixedly connected with a supporting rod (10), and the other end of the supporting rod (10) is fixedly connected with the side wall of the first sliding block (6); the side wall of the placement block (3) is fixedly connected with a mounting plate (11); the side wall of the mounting plate (11) is rotatably connected with a rotary handle (12), and the rotary handle (12) is connected with the threaded rod (5) through an adjusting component; the outer circular wall of the supporting rod (10) is rotatably connected with a rotating ring (13); the outer circular wall of the rotating ring (13) is provided with a handle (14), and the handle (14) is connected with the rotating ring (13) through a telescopic component; a pull rod (15) is fixedly connected to the outer circular wall of the rotating ring (13); the two side walls of the pull rod (15) are rotatably connected with connecting rods (16); a lifting rod (17) is rotatably connected between the side walls of the pair of connecting rods (16), and a supporting device is arranged at the bottom end of the lifting rod (17).

2. A tool for facilitating the opening of a well lid according to claim 1, wherein the adjustment assembly comprises a spindle (18); the side wall of the placing block (3) is rotationally connected with a rotating shaft (18), and one end of the rotating shaft (18) extends into the side wall of the placing block (3) to be fixedly connected with the end part of the threaded rod (5); the end part of the rotating shaft (18) is fixedly connected with a turbine (19); the side wall of the mounting plate (11) is rotationally connected with a worm (20), the worm (20) is meshed with the turbine (19), and one end of the worm (20) extends into the side wall of the mounting plate (11) to be fixedly connected with the rotating handle (12).

3. The tool for conveniently opening the well cover according to claim 2, wherein the telescopic assembly comprises a sleeve (21), and the outer circular wall of the rotating ring (13) is fixedly connected with the sleeve (21); the inner circular wall of the sleeve (21) is connected with a loop bar (22) in a sliding way, and the end part of the loop bar (22) is fixedly connected with the end part of the handle (14); a group of limiting holes (23) are uniformly formed in the outer circular wall of the sleeve (21); the outer circular wall of the loop bar (22) is provided with a circular groove (24), and the inner diameter of the circular groove (24) is the same as the inner diameter of the limiting hole (23); a limit protrusion (25) is connected in a sliding way in the circular groove (24); the bottom wall of the limiting bulge (25) is fixedly connected with a first spring (26), and the other end of the first spring (26) is fixedly connected with the inner wall of the circular groove (24).

4. A tool for conveniently opening a well cover according to claim 3, wherein the lifting device comprises a placing groove (27), and the placing grooves (27) are formed on two side walls of the lifting rod (17); the inner side walls of the pair of placing grooves (27) are hinged with supporting blocks (28), and torsion springs are arranged at the hinged positions.

5. The tool for conveniently opening the well lid according to claim 4, wherein a third chute (29) is formed on the top wall of the pair of placing grooves (27); a limiting block (30) is connected in a sliding manner in the third sliding groove (29); the top wall of the limiting block (30) is fixedly connected with a second spring (31), and the top end of the second spring (31) is fixedly connected with the top wall of the third sliding groove (29); a fourth chute (32) is formed in the side wall of the lifting rod (17), and the fourth chute (32) is communicated with the third chute (29); the side wall of the limiting block (30) is fixedly connected with a pull handle (33), and the pull handle (33) vertically slides in the fourth sliding groove (32).

6. The tool for conveniently opening the well cover according to claim 5, wherein the top wall of the support frame (1) is provided with a support plate (34), and two side walls of the support plate (34) are fixedly connected with the side walls of the support column (2) through fixing rods; a fifth sliding groove (35) is formed in the top wall of the supporting plate (34); a first through groove (36) is formed in the bottom wall of the fifth sliding groove (35); the side wall of the fifth sliding chute (35) is connected with a sliding plate (37) in a sliding manner, and the top wall of the sliding plate (37) is fixedly connected with the outer circular wall of the supporting plate (34) through a pair of connecting plates; the top wall of the sliding plate (37) is provided with a limiting through groove (38), and the outer side wall of the lifting rod (17) is attached to the inside of the limiting through groove (38).

7. The tool for conveniently opening the well cover according to claim 6, wherein the periphery of the bottom wall of the support frame (1) is fixedly connected with a universal wheel (39); bolts (40) are connected with the periphery of the top wall of the support frame (1) in a threaded manner.

8. The tool for conveniently opening the well cover according to claim 7, wherein the bottom ends of the pair of limiting blocks (30) are all inclined planes.