CN109809341B - Communication pipeline manhole cover uncovering device - Google Patents
Communication pipeline manhole cover uncovering device Download PDFInfo
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- CN109809341B CN109809341B CN201910174505.2A CN201910174505A CN109809341B CN 109809341 B CN109809341 B CN 109809341B CN 201910174505 A CN201910174505 A CN 201910174505A CN 109809341 B CN109809341 B CN 109809341B
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- 238000004891 communication Methods 0.000 title claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
- 210000000214 mouth Anatomy 0.000 description 7
- 210000003128 head Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 235000004443 Ricinus communis Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses a cover opening device for a manhole cover of a communication pipeline, which comprises a first upright post, a second upright post and a third upright post which are distributed in a triangle shape, wherein two adjacent upright posts are detachably connected with a supporting beam, one end of a suspension arm is movably connected to the supporting beam, the other end of the suspension arm is in sliding contact with a supporting mechanism, the supporting mechanism is detachably connected with the third upright post, a lifting mechanism is fixed on the suspension arm, a lever is hooked on the lifting mechanism, the top of the third upright post is provided with a supporting groove for supporting the lever, a lifting mechanism is arranged on the suspension arm, after the lifting mechanism is fixed with the manhole cover, the lever is pressed by pressing the lever, and one end of the suspension arm is driven to lift upwards relative to the other end by taking the supporting groove as a fulcrum, so that the manhole cover is opened. The device has the advantages of simple structure, convenient use, simple assembly and disassembly, high opening efficiency of the manhole cover and reduction of manual labor force.
Description
Technical Field
The invention relates to the field of communication equipment, in particular to a cover opening device for a manhole cover of a communication pipeline.
Background
The communication pipeline consists of a manhole or a hand hole and a pipe hole, wherein the manhole or the hand hole consists of an outer cover, a sub-cover, a mouth ring, an oral cavity and the like, the outer cover is embedded in the mouth ring, the sub-cover is arranged below the outer cover, and the sub-cover is placed on a platform in the mouth ring. The outer cover is made of ductile cast iron, has heavy weight, and is particularly positioned on a roadway, and is of a heavy weight type to ensure driving safety; the sub-cover is generally placed on a platform in the mouth ring, is relatively light in weight and is relatively easy to open.
Under normal conditions, a constructor uses a manhole cover hook to penetrate into an opening hole of a manhole outer cover, hooks the outer cover, lifts the outer cover upwards with force, pulls out an outlet ring from the outer cover, pulls the outer cover to one side of a manhole opening with force, lifts a handle of a portable screwdriver cover, and lifts a sub cover to one side of the manhole opening. The manhole cover is opened, and a constructor immediately performs subsequent manhole inner construction.
Because the manhole or hand hole of the communication pipeline is underground, the environment is moist, and some outer covers which are not normally opened can be corroded and stuck with the opening ring, the opening difficulty is increased; some opening rings have smaller caliber, and the outer cover is hooped in the opening ring, so that the outer cover is very difficult to open; in other communication engineering, in winter construction in the north, moisture rising in the manhole meets the low temperature outside the manhole at the manhole outer cover, so that the manhole outer cover is frozen in the opening ring, and the outer cover cannot be opened.
For the above reasons, the manhole cover cannot be opened or is difficult to be opened. In the communication pipeline engineering, the construction work in the manhole cannot be performed without opening the manhole cover, and therefore, it is necessary to try to open these manhole covers which are difficult to open before the construction. In the traditional construction method, when encountering the manhole outer cover which is difficult to open, constructors often use hammers or stones to smash the outer cover hard to shake the outer cover so as to separate from the adhesion of the opening ring, or use an ignition blast burner to bake the contact part of the outer cover and the opening ring, burn sundries or bake frozen ice, then penetrate the manhole cover hook into an opening hole, pull the manhole cover hard to pull the manhole cover upwards, which is time-consuming and laborious, and even can not open the manhole outer cover. Therefore, in order to ensure that the construction of the communication pipeline engineering can be smoothly carried out, the design of a simple and effective manhole cover opening device is urgent.
Disclosure of Invention
The invention aims to provide a manhole cover opening device for a communication pipeline, which solves the problems in the prior art and enables a manhole cover to be opened quickly and efficiently.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides a cover opening device of a manhole cover of a communication pipeline, which is characterized in that: including being triangle-shaped distributed's first stand, second stand and third stand, adjacent two stands can dismantle and be connected with a supporting beam, a supporting beam with first stand with the hookup location of second stand is provided with fixed part, swing joint has the one end of davit on the supporting beam, the other end sliding contact of davit has supporting mechanism, supporting mechanism with the connection can be dismantled to the third stand, be fixed with elevating system on the davit, the last hook of elevating system is connected with the lever, the top of third stand is equipped with the supporting groove of supporting the lever, be equipped with on the davit and hang and get the mechanism, hang and get the mechanism and fix the back with the manhole cover through pressing the lever, the lever uses the supporting groove as the fulcrum, drives the one end of davit and upwards promotes for the other end, and then opens the manhole cover.
Preferably, the lifting mechanism comprises a pulley, the pulley is fixed with the suspension arm through a pulley shaft, a pull rope is arranged on the pulley, hooks are arranged at two ends of the pull rope, and tail protruding heads are arranged on the hooks.
Preferably, the lifting mechanism comprises a pull handle fixed with the suspension arm through a pull shaft, a pull ring is arranged on the pull handle, and the pull ring is hooked and connected with the lever.
Preferably, the supporting mechanism comprises a supporting plate, a plurality of supporting screws are connected to the supporting plate in a threaded mode, supporting screw holes are formed in the third upright post, the supporting screws penetrate through the supporting screw holes, springs are arranged on the supporting screws, and the springs are arranged on the supporting screws at the middle positions of the third upright post and the supporting plate.
Preferably, the bottom of the supporting plate is provided with a sharp corner, the supporting plate is provided with a groove, and the suspension arm is provided with a suspension arm extension plate in sliding contact with the groove.
Preferably, the support beam comprises a first support beam, a second support beam and a third support beam, one end of the first support beam is inserted and connected with the first upright, the other end of the first support beam is inserted and connected with the second upright, one end of the second support beam is inserted and connected with the first upright, the other end of the second support beam is inserted and connected with the third upright, one end of the third support beam is inserted and connected with the second upright, and the other end of the third support beam is inserted and connected with the third upright.
Preferably, the first upright post and the second upright post have the same structure, and the second support beam and the third support beam have the same structure.
Preferably, support beam insertion columns are arranged at two ends of the first support beam, support beam penetrating holes matched with the support beam insertion columns are formed in the first upright post, support beam insertion columns are arranged at one end of the second support beam, support beam fixing holes are formed in the other end of the second support beam, support handles matched with the support beam fixing holes are symmetrically arranged at the left end and the right end of the third upright post, and the support handles are fixedly connected with the support beam fixing holes through fixing penetrating nails after being inserted and connected.
Preferably, a suspension arm fixing ring is arranged in the middle of the first support beam, a suspension arm fixing hole which is inserted and connected with the suspension arm fixing ring is arranged on the suspension arm,
Preferably, the fixing part comprises a tension spring and tension spring fixing columns connected with two ends of the tension spring in a hooking manner.
The invention discloses the following technical effects:
According to the manhole cover opening device, the hooks at the two ends of the pull rope are respectively placed into the opening holes of the manhole, one end of the lever is hooked on the pull ring, the other end of the lever is pressed, the lever takes the supporting groove as a supporting point, and one end of the suspension arm is driven to lift upwards, so that the manhole outer cover is driven to lift upwards, and the manhole cover is opened.
The invention is of a triangle structure as a whole, the suspension arm is arranged in the middle position of the first support beam and the third upright post, one end of the suspension arm is rotationally connected with the first support beam in the opening process of the manhole cover, the other end of the suspension arm is in sliding contact with the support plate, and when the suspension arm is lifted upwards, the support plate automatically changes the distance from the third upright post under the action of the spring, so that the invention is suitable for the opening work of the manhole cover, prevents the suspension arm from shaking left and right, improves the stability of the whole structure, and saves more time and labor in the opening process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a front view structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic diagram of a third column and support mechanism connection front view structure of the present invention;
FIG. 4 is a schematic diagram of the structure of the connecting side of the third column and the supporting mechanism of the present invention;
FIG. 5 is a schematic diagram showing the structure of the third column and the supporting mechanism in a top view;
FIG. 6 is a schematic view of the attachment of the boom to the lifting mechanism and the hoist mechanism of the present invention;
FIG. 7 is a schematic view of the lever and extension bar exploded construction of the present invention.
The first upright 1, the second upright 2, the third upright 3, the boom 4, the lever 5, the supporting groove 6, the pulley 7, the pull rope 8, the hook 9, the tail protrusion 10, the pull shaft 11, the pull handle 12, the pull ring 13, the supporting plate 14, the supporting screw 15, the supporting screw hole 16, the sharp corner 17, the groove 18, the first supporting beam 19, the second supporting beam 20, the third supporting beam 21, the supporting beam insertion post 22, the supporting beam penetration hole 23, the supporting beam fixing hole 24, the supporting handle 25, the fixing penetrating nail 26, the boom fixing ring 27, the boom fixing hole 28, the tension spring 29, the tension spring fixing post 30, the boom extension plate 31, the pulley shaft 32, the spring 33, the universal castor 34, the hook 35, the extension rod 36, and the insertion rod 37.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-7, the invention provides a cover opening device for a manhole cover of a communication pipeline, which comprises a first upright 1, a second upright 2 and a third upright 3 which are distributed in a triangle shape, wherein two adjacent uprights are detachably connected with a supporting beam, the connecting positions of the supporting beam and the first upright 1 and the second upright 2 are provided with fixing parts, one end of a suspension arm 4 is movably connected on the supporting beam, the other end of the suspension arm 4 is in sliding contact with a supporting mechanism, the supporting mechanism is detachably connected with the third upright 3, a lifting mechanism is fixed on the suspension arm 4, a lever 5 is hooked on the lifting mechanism, a supporting groove 6 for supporting the lever 5 is arranged at the top of the third upright 3, a hanging mechanism is arranged on the suspension arm 4, after the hanging mechanism is fixed with the manhole cover, the lever 5 is pressed by pressing the lever 5 by taking the supporting groove 6 as a fulcrum, one end of the suspension arm 4 is driven to lift upwards relative to the other end, and then the manhole cover is opened, and the device is detached and stored after the device is used.
Further optimizing scheme, hang and get the mechanism and include pulley 7, pulley 7 sets up the intermediate position at davit 4, pulley 7 passes through pulley shaft 32 and davit 4 is fixed, pulley 7 outer fringe is equipped with the stay cord groove, be equipped with stay cord 8 in the stay cord groove, stay cord 8 is the thin steel wire rope, the both ends of stay cord 8 are equipped with couple 9, be equipped with tail protruding head 10 on couple 9, couple 9 and tail protruding head 10 are used for hanging the lid mouth of manhole and the handle of manhole sub-cover, the width of couple 9 and the length of tail protruding head 10 are the manhole enclosing cover and open 2/3 of hole major axis diameter, during the use, put couple 9 in the opening hole of manhole enclosing cover earlier, put tail protruding head 10 in the opening hole of manhole enclosing cover again. Assuming that the distance between the two opening holes of the manhole cover is a and the vertical distance between the boom 4 and the manhole cover is b, the length L of the pull rope is between a and [ (a/2) 2+b2〕1/2.
Furthermore, for convenient installation and use, the cross section of the boom 4 is of an inverted U-shaped structure, an opening is formed in the top wall of the inverted U-shaped structure, so that the pulley 7 and the pull rope 8 can be conveniently installed, one end of the boom 4 is provided with the boom fixing hole 28, the other end of the boom 4 is provided with the boom extension plate 31, and the boom extension plate 31 is flat (i.e. the side wall is removed from the inverted U-shaped structure), that is, the boom extension plate 31 and the boom 4 can be of an integrated structure.
Further optimizing scheme, the lifting mechanism includes pull handle 12 fixed with davit 4 through pull shaft 11, is equipped with pull ring 13 on the pull handle 12, and pull ring 13 sets up in the intermediate position of pull handle 12, and pull ring 13 hook connection lever 5 to pull handle 12 is the structure of falling U equally, and pull handle 12 inserts connection davit 4 and is fixed with davit 4's lateral wall through pull shaft 11, makes lifting mechanism and davit 4 fixed as an organic whole.
In a further optimized scheme, the supporting mechanism comprises a supporting plate 14, a plurality of supporting screws 15 are connected to the supporting plate 14 in a threaded manner, supporting screw holes 16 are formed in the third upright post 3, the supporting screws 15 penetrate through the supporting screw holes 16, springs 33 are arranged on the supporting screws 15, the springs 33 are arranged on the supporting screws 15 at the middle positions of the third upright post 3 and the supporting plate 14, and when the supporting plate 14 is extruded by the suspension arm 4, the supporting plate 14 moves to one side of the third upright post 3; after the manhole cover is lifted, the spring 33 presses the supporting plate 14 to the side far away from the third upright 3, the top of the supporting plate 14 can prop the boom extension plate 31, at the moment, the lever can be released, and the manhole cover can be stably suspended under the boom 4, so that the stability of the whole structure is improved.
In order to prevent the suspension arm 4 from being blocked by the support plate 14 when being lifted, the bottom of the support plate 14 is provided with a sharp corner 17, the support plate 14 is provided with a groove 18, the width of the groove 18 is matched with the width of the suspension arm extension plate 31, and the suspension arm extension plate 31 can be in sliding contact in the groove 18. The structure plays a guiding role in lifting the suspension arm 4, and can prevent the suspension arm 4 from swinging left and right in the lifting process, so that the suspension arm 4 is lifted smoothly, and the length of the suspension arm 4 cannot be smaller than the vertical distance from the support plate 14 to the first support beam 19 when the spring 33 is in a natural state and cannot be larger than the vertical distance from the support plate 14 to the first support beam 19 when the spring 33 is in a limit compression state.
In a further optimized scheme, the end part of the lever 5 is provided with a lifting hook 35, the lifting hook 35 is hooked with the pull ring 13, an inserting hole is formed in the middle position of the lever 5 for increasing the lifting force, an extension rod 36 can be inserted and connected into the inserting hole, an inserting hole is formed in the middle position of the extension rod 36, an inserting rod 37 is arranged at any end of the extension rod 36, and the inserting rod 37 is inserted into the inserting hole.
Further optimizing scheme, the supporting beam comprises a first supporting beam 19, a second supporting beam 20 and a third supporting beam 21, the second supporting beam 20 and the third supporting beam 21 are identical in structure, and the first upright 1 and the second upright 2 are identical in structure.
Further optimizing scheme, the first supporting beam 19 both ends are equipped with supporting beam insertion column 22, be equipped with on the first stand 1 with supporting beam insertion column 22 looks adaptation supporting beam access hole 23, the one end of second supporting beam 20 is equipped with supporting beam insertion column 22, the other end is equipped with supporting beam fixed orifices 24, the left and right sides both ends symmetry of third stand 3 is equipped with the support handle 25 with supporting beam fixed orifices 24 adaptation, the support handle is L shape, support handle 25 is through fixed through nail 26 fixed connection after inserting with supporting beam fixed orifices 24 to be equipped with the pinhole at the tip of fixed through nail 26, the pinhole has inserted the fixed pin for fixed through nail 26.
Further, one end of the first support beam 19 is inserted into and connected with the first upright 1, the other end is inserted into and connected with the second upright 2, one end of the second support beam 20 is inserted into and connected with the first upright 1, the other end is inserted into and connected with the third upright 3, one end of the third support beam 21 is inserted into and connected with the second upright 2, and the other end is inserted into and connected with the third upright 3.
Still further, the first support beam 19, the second support beam 20 and the third support beam 21 are each cylindrical in cross section, and the support beam insertion column 22 is also cylindrical in shape, and the support beam insertion column 22 is smaller in cross section than the first support beam 19, the second support beam 20 and the third support beam 21.
According to a further optimization scheme, a boom fixing ring 27 is arranged in the middle of the first supporting beam 19, a wall fixing hole 28 is formed in one end of the boom 4, the boom fixing ring 27 is inserted into the boom fixing hole 28, the design of the structure can serve as a rotating point in the lifting process of the boom 4, and when the device is used, the boom 4 can be folded to one side of the first supporting beam 19 to be convenient to store.
Further optimizing scheme, fixed part includes extension spring 29 and extension spring fixed column 30 that extension spring 29 both ends hook is connected, and threaded connection has the nut on the extension spring fixed column 30, and extension spring fixed column 30 is fixed with first stand 1, second stand 2 and a supporting beam respectively, and a supporting beam inserts and connects after first stand 1 and the second stand 2, and rethread extension spring 29 is further fixed, improves overall structure's stability.
Still further, in order to facilitate connection between the tension spring 29 and the tension spring fixing post 30, tension spring hooks are provided at both ends of the tension spring 29, and the tension spring hooks are hooked and fixed with the tension spring fixing post 30.
Further optimizing scheme, for making the manhole cover after lifting can be smooth by removing to the manhole outer fringe, first stand 1, second stand 2 and third stand 3 bottom are connected with universal castor 34, and a supporting beam is good with first stand 1, and after second stand 2 and the third stand 3 were installed, the interval between each stand was greater than 1.2 times of manhole mouth circle diameter to guarantee that this device is lifted the manhole cover after, can remove the manhole cover to the manhole outer fringe through the gyro wheel rotation.
The invention discloses a manhole cover opening device, which comprises the following using steps:
1. The supporting beams of the device are arranged in the supporting beam penetrating holes corresponding to the upright posts, the tension springs 29 are hung, and nuts on the tension spring fixing posts 30 are screwed; the second support beam 20, the third support beam 21 and the third upright 3 are fixed through the fixing through nails 26, and fixing pins are inserted into pin holes at one end of the fixing through nails 26;
2. Adjusting the boom 4 to be centered in the boom fixing ring 27 of the first support arm 19, and placing the other end of the boom 4 on the manhole outer cover; threading the pull rope 8 into the pulley 7; the hanging hook 35 at the head part of the lever 5 is hooked with the pull ring 13, and the lever 5 is placed in the supporting groove 6 of the third upright 3; depending on the field application, one or more extension bars 36 may be added to the tail of the lever 5.
3. Hooks 9 at two ends of the pull rope 8 are respectively placed into opening holes of the manhole outer cover, and at the moment, the pulleys 7 on the suspension arm 4 are not positioned in the middle of the two opening holes of the manhole outer cover because the suspension arm 4 is in an inclined state;
4. The tail end of the lever 5 is pressed, the lever 5 can pull the suspension arm 4, at the moment, the lengths of the pull ropes 8 at the two sides of the pulley 7 on the suspension arm 4 are different, and as the two opening holes on the manhole cover are symmetrically formed in the manhole cover, the lengths of the pull ropes 8 at the two sides of the pulley 7 are changed into the same from different under the action of the gravity of the manhole cover in the process of lifting the suspension arm 4, and the lengths of the pull ropes 8 at the two sides of the pulley 7 are also changed into the same; during the lifting of the boom 4, the boom extension plate 31 of the boom 4 will move towards the third upright 3 under the guidance of the groove 18, pressing the support plate 14; when the boom 4 lifts the manhole cover, one end of the boom 4 moves upwards to the top of the supporting plate 14, the manhole cover is opened, and the boom extension plate 31 is also supported on the top of the supporting plate 14;
5. the device is moved out by the universal casters 34 at the bottom of each upright, driving the manhole cover to move outside the manhole opening.
6. After the device is used, the device is disassembled and stored, and when the device is used again, the steps are repeated.
When the manhole cover is opened, the child cover is lighter and is not extruded or frozen, so that the manhole cover is easy to lift. When in lifting, the pull rope 8 of the device can be independently used, and the hanger 9 on the pull rope 8 is only required to be hooked on the handle of the sub-cover, so that the sub-cover can be lifted.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (6)
1. The utility model provides a communication pipeline manhole cover uncap device which characterized in that: the lifting device comprises a first upright (1) which is in triangular distribution, a second upright (2) and a third upright (3), wherein two adjacent uprights are detachably connected with a supporting beam, the connecting positions of the supporting beam and the first upright (1) and the second upright (2) are provided with fixing parts, one end of a suspension arm (4) is movably connected to the supporting beam, the other end of the suspension arm (4) is in sliding contact with a supporting mechanism, the supporting mechanism is detachably connected with the third upright (3), a lifting mechanism is fixed on the suspension arm (4), a lever (5) is hooked on the lifting mechanism, a supporting groove (6) for supporting the lever (5) is formed in the top of the third upright (3), and after the lifting mechanism is fixed with a manhole cover, the lever (5) is pressed by pressing the lever (6) by taking the supporting groove (6) as a fulcrum, one end of the suspension arm (4) is driven to lift up relative to the other end of the manhole cover, and then the manhole cover is opened;
the lifting mechanism comprises a pulley (7), the pulley (7) is fixed with the suspension arm (4) through a pulley shaft (32), a pull rope (8) is arranged on the pulley (7), hooks (9) are arranged at two ends of the pull rope (8), and tail protruding heads (10) are arranged on the hooks (9);
the lifting mechanism comprises a pull handle (12) fixed with the suspension arm (4) through a pull shaft (11), a pull ring (13) is arranged on the pull handle (12), and the pull ring (13) is hooked and connected with the lever (5);
The supporting mechanism comprises a supporting plate (14), a plurality of supporting screws (15) are connected to the supporting plate (14) in a threaded mode, supporting screw holes (16) are formed in the third upright post (3), the supporting screws (15) penetrate through the supporting screw holes (16), springs (33) are arranged on the supporting screws (15), and the springs (33) are arranged on the supporting screws (15) at the middle positions of the third upright post (3) and the supporting plate (14);
the bottom of the supporting plate (14) is provided with a sharp corner (17), the supporting plate (14) is provided with a groove (18), and the suspension arm (4) is provided with a suspension arm extension plate (31) in sliding contact with the groove (18).
2. The communication conduit manhole cover opening device of claim 1, wherein: the support beam includes first support beam (19), second support beam (20) and third support beam (21), first support beam (19) one end insert connection first stand (1), the other end insert connection second stand (2), second support beam (20) one end insert connection first stand (1), the other end insert connection third stand (3), third support beam (21) one end insert connection second stand (2), the other end insert connection third stand (3).
3. The communication conduit manhole cover opening device of claim 2, wherein: the first upright (1) and the second upright (2) are identical in structure, and the second support beam (20) and the third support beam (21) are identical in structure.
4. A communication conduit manhole cover opening device according to claim 3, wherein: the support beam fixing device is characterized in that support beam inserting columns (22) are arranged at two ends of the first support beam (19), support beam penetrating holes (23) matched with the support beam inserting columns (22) are formed in the first upright (1), support beam inserting columns (22) are arranged at one end of the second support beam (20), support beam fixing holes (24) are formed in the other end of the second support beam, support handles (25) matched with the support beam fixing holes (24) are symmetrically arranged at the left end and the right end of the third upright (3), and the support handles (25) are fixed through fixing penetrating nails (26) after being connected with the support beam fixing holes (24) in an inserting mode.
5. A communication conduit manhole cover opening device according to claim 3, wherein: the middle position of the first support beam (19) is provided with a boom fixing ring (27), and the boom (4) is provided with a boom fixing hole (28) which is inserted into and connected with the boom fixing ring (27).
6. The communication conduit manhole cover opening device of claim 1, wherein: the fixing part comprises a tension spring (29) and tension spring fixing columns (30) which are connected with the two ends of the tension spring (29) in a hooking mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174505.2A CN109809341B (en) | 2019-03-08 | 2019-03-08 | Communication pipeline manhole cover uncovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174505.2A CN109809341B (en) | 2019-03-08 | 2019-03-08 | Communication pipeline manhole cover uncovering device |
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| Publication Number | Publication Date |
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| CN109809341A CN109809341A (en) | 2019-05-28 |
| CN109809341B true CN109809341B (en) | 2024-05-24 |
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| CN201910174505.2A Active CN109809341B (en) | 2019-03-08 | 2019-03-08 | Communication pipeline manhole cover uncovering device |
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| DE4333246A1 (en) * | 1993-09-30 | 1995-04-06 | Klaus Lemke | Implement for lifting manhole covers |
| CA2124384A1 (en) * | 1994-02-16 | 1995-08-17 | Daniel C. Mcclarin | Method and apparatus for installing and removing posts |
| WO1999000553A1 (en) * | 1997-06-27 | 1999-01-07 | Munch Fals Jakob | A well cover lifting tool |
| JP2006161423A (en) * | 2004-12-08 | 2006-06-22 | Hirosumi Nagai | Manhole cover opening device |
| CN205634826U (en) * | 2016-05-31 | 2016-10-12 | 李宗志 | Manhole shaft cover opening device for building engineering |
| CN106477486A (en) * | 2016-08-24 | 2017-03-08 | 潍坊五洲和兴电气安装有限公司 | Electric power stores well lid lifting tool |
| CN206783264U (en) * | 2017-06-13 | 2017-12-22 | 南安昌晟消防科技有限公司 | A kind of fire manhole cover quick opening |
| CN209778235U (en) * | 2019-03-08 | 2019-12-13 | 中国通信建设第一工程局有限公司 | Communication pipeline manhole cover device of uncapping |
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| CN109809341A (en) | 2019-05-28 |
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