CN217379007U - Manhole cover opening device - Google Patents

Abstract

The utility model provides a well lid opening device belongs to municipal construction apparatus technical field, including pull rod, splint and locking sleeve, insert in the well lid through-hole through inserting the end of inserting the pull rod to block the well lid bottom with the cardboard, place splint in well lid through-hole top, make the pull rod be located and dodge the inslot, through adjusting locking sleeve and making locking sleeve compress tightly splint downwards, make to form between splint and the cardboard and press from both sides tight well lid wafer formula structure. The utility model provides a well lid opening device can fix the pull rod on the well lid, also can not break away from the well lid under the dead weight effect, only needs to rotate the direction to the well lid top and draw the pull rod, can open the well lid, and the mode of opening is simple, opens convenient operation swift, and stability is good, can not damage the well lid.

Description

Manhole cover opening device

Technical Field

The utility model belongs to the technical field of municipal construction apparatus, more specifically say, relate to a well lid opening device.

Background

What open well lid commonly used in the construction engineering construction at present is that instruments such as iron rod, crow bar insert the one end of instrument in the through-hole on the well lid, draw instrument and perk well lid hard in the operation, make the well lid round with well seat articulated one end to the upset of pulling direction, then the well lid is opened. But this kind of mode of opening well lid, under the action of gravity, the contact department of instruments such as iron rod and well lid through-hole takes place to slide, lead to instruments such as iron rod to break away from the well lid easily, cause the well lid to open the failure, in case the operation is improper, also can cause personnel injured or well lid damage, still need multiple operation could open the well lid, operating efficiency is lower, consequently, traditional instrument of opening the well lid has caused a lot of negative effects to stability and convenience that the well lid was opened, there is the damage to the well lid promptly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well lid opening device aims at solving the technical problem who easily breaks away from with the well lid when using traditional instrument to open the well lid.

In order to achieve the above object, the utility model adopts the following technical scheme: the well lid opening device comprises a pull rod, a clamping plate and a locking sleeve, wherein the pull rod is provided with an insertion end suitable for being inserted into a through hole of a well lid, and the insertion end is connected with the clamping plate suitable for clamping the bottom end of the well lid; the clamping plate is covered above the through hole of the well lid, the side part of the clamping plate is provided with an avoidance groove suitable for accommodating the pull rod, and the clamping plate is inserted from the side part of the pull rod and enables the pull rod to be arranged in the avoidance groove; the locking sleeve is coaxially sleeved on the outer circumference of the pull rod and located above the clamping plate and is suitable for pressing the clamping plate to the upper end of the well lid downwards to form a clamping structure of the clamping plate and the clamping plate.

In a possible implementation manner, the well lid opening device further comprises a support plate, one end of the pull rod, which is far away from the insertion end, is hinged to the bottom end of the support plate, and the pull rod rotates around the hinged position to be close to the direction of the support plate and then forms a folded shape with the support plate.

In a possible implementation mode, the pull rod is close to the outer circumference of the insertion end and is provided with an external thread, an internal thread is arranged in the locking sleeve and can be in threaded connection with the external thread, and the locking sleeve is close to the insertion end and is used for being abutted and pressed against the clamping plate when moving.

In a possible implementation manner, the clamping plate is plate-shaped, one end of the clamping plate is detachably connected with the insertion end, and an included angle formed between a plane formed by the clamping plate in the length and width directions and the axial direction of the pull rod is 30-150 degrees.

In a possible implementation manner, the well lid opening device further comprises a cover plate, and the cover plate is arranged above the supporting plate and detachably connected with the supporting plate to form an integrated structure.

In a possible implementation manner, the detachable connection is a plurality of buckles hinged on the side part of the cover plate, and the buckles are matched and clamped with the supporting plate close to the end part.

In a possible implementation manner, the locking sleeve is in a circular truncated cone shape, and one end close to the insertion end is larger in outer diameter and the end with the larger outer diameter is suitable for abutting against the clamping plate.

In a possible implementation manner, the upper end of the supporting plate is provided with a plurality of accommodating grooves, triangular cushion blocks and iron brazes are respectively placed in the accommodating grooves, and the clamping plate is placed in one of the accommodating grooves.

In a possible implementation manner, the upper end of the supporting plate is hinged with a handle, and the handle can rotate towards the direction close to the supporting plate and forms a folding shape.

In a possible implementation mode, the clamping plates are overlapped on two sides of the upper end of the through hole of the well lid, and the avoiding groove is semicircular or U-shaped.

The utility model provides a well lid opening device's beneficial effect lies in: compared with the prior art, the utility model discloses well lid opening device includes pull rod, splint and locking sleeve, inserts in the well lid through-hole through inserting the end of pull rod to block the well lid bottom with the cardboard, place splint in well lid through-hole top, make the pull rod be located and dodge the inslot, through adjusting locking sleeve and making locking sleeve compress tightly splint downwards, make to form between splint and the cardboard and press from both sides tight well lid butt clamp formula structure. The utility model provides a well lid opening device can fix the pull rod on the well lid, also can not break away from the well lid under the dead weight effect, only needs to rotate the direction to the well lid top and draw the pull rod, can open the well lid, and the mode of opening is simple, opens convenient operation swift, and stability is good, can not damage the well lid.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a side view of the overall structure of a well lid opening device provided in the embodiment of the present invention;

FIG. 2 is a bottom half of the structure of FIG. 1;

fig. 3 is an overall bottom view (the pull rod is in a folded state) of the manhole cover opening device provided by the embodiment of the present invention;

fig. 4 is an overall plan view of the manhole cover opening device provided in the embodiment of the present invention;

fig. 5 is a front view of a supporting plate structure of the manhole cover opening device provided in the embodiment of the present invention;

fig. 6 is a front view of a cover plate structure of the manhole cover opening device provided by the embodiment of the present invention;

fig. 7 is a schematic view of a state after a supporting plate and a cover plate of the manhole cover opening device provided by the embodiment of the present invention are fastened together;

fig. 8 is a top view of a clamp plate structure of the manhole cover opening device provided in the embodiment of the present invention;

fig. 9 is a top view of a clamp plate structure of a manhole cover opening device according to another embodiment of the present invention;

fig. 10 is a perspective view of a triangular cushion block of the well lid opening device provided in the embodiment of the present invention;

fig. 11 is a schematic view of an included angle between a clamping plate and a pull rod of the manhole cover opening device provided in the embodiment of the present invention;

fig. 12 is a schematic view showing a state of the pull rod and the clamping plate of the well lid opening device in the process of being inserted into the well lid through hole (the structure shown by the hatched lines at the lower part is the well lid);

fig. 13 is that the embodiment of the utility model provides a well lid opening device's pull rod and cardboard insert well lid through-hole in-process state schematic diagram two (the structure that the hatch line that is located the lower part shows is the well lid).

Description of reference numerals:

1. a pull rod; 11. an external thread; 2. a splint; 21. an avoidance groove; 3. a locking sleeve; 4. clamping a plate; 5. a support plate; 51. a containing groove; 6. a cover plate; 61. buckling; 7. a triangular cushion block; 8. an iron chisel; 9. and (4) a handle.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 13, the manhole cover opening device of the present invention will be described. The well lid opening device comprises a pull rod 1, a clamping plate 2 and a locking sleeve 3, wherein an insertion end suitable for being inserted into a through hole of a well lid is arranged on the pull rod 1, and the insertion end is connected with a clamping plate 4 suitable for clamping the bottom end of the well lid; the clamping plate 2 is arranged above the through hole of the well lid in a covering mode, the side portion of the clamping plate is provided with an avoiding groove 21 suitable for containing the pull rod 1, and the clamping plate 2 is inserted from the side portion of the pull rod 1 and enables the pull rod 1 to be placed in the avoiding groove 21; the outer circumference of pull rod 1 is located to the coaxial cover of locking sleeve 3 and is located splint 2 top, is suitable for downwards to compress tightly splint 2 to well lid upper end to form the wafer formula structure of splint 2 and cardboard 4.

The utility model provides a well lid opening device, compared with the prior art, including pull rod 1, splint 2 and locking sleeve 3, insert the well lid through-hole through inserting the end with pull rod 1 to block the well lid bottom with cardboard 4, place splint 2 in well lid through-hole top, make pull rod 1 be located and dodge the groove 21 in, through adjusting locking sleeve 3 and making locking sleeve 3 compress tightly splint 2 downwards, make to form between splint 2 and the cardboard 4 and press from both sides tight well lid butt clamp formula structure. The utility model provides a well lid opening device can fix pull rod 1 on the well lid, also can not break away from the well lid under the dead weight effect, only needs to rotate the direction to the well lid top and draw pull rod 1, can open the well lid, and the mode of opening is simple, opens convenient operation swift, and stability is good, can not damage the well lid.

When actual operation, insert the well lid through-hole to pull rod 1 earlier in, place splint 2 in well lid through-hole top to the operation makes locking sleeve 3 downstream and compresses tightly splint 2, then splint 2 is fixed to be compressed tightly, and pull rod 1 is in the state by fixed this moment, can not break away from the well lid promptly under natural gravity, and the staff is kept away from the one end that inserts the end on pulling pull rod 1 to keeping away from the well lid direction this moment, then the well lid is opened. The pull rod 1 can be clamped into the avoiding groove 21, so that the locking sleeve 3 can completely compress the clamping plate 2, the clamping force formed between the clamping plate 2 and the clamping plate 4 is ensured to be large and stable enough, and the phenomena of sliding or loosening and the like between the pull rod 1 and the well cover are prevented. The insertion end is the lower end in fig. 1. The structure shown by hatching in the lower part of fig. 1 is a manhole cover.

In some embodiments, referring to fig. 1 to 13, the manhole cover opening device further includes a supporting plate 5, an end of the pull rod 1 away from the insertion end is hinged to a bottom end of the supporting plate 5, and the pull rod 1 rotates around the hinged portion to a direction close to the supporting plate 5 to form a folded shape with the supporting plate 5. When the pull rod 1 is pulled in the direction far away from the well lid, the well lid can be opened, the pull rod 1 does not need to be held by hands, and the supporting plate 5 is pulled by hands.

Specifically, backup pad 5 is the platelike rectangle that all is, and the one end of pull rod 1 is articulated and rotatable with backup pad 5 bottom, and pull rod 1 can be folded with backup pad 5 promptly, and the later stage transport of being convenient for is got and is put the convenience. The length direction of the supporting plate 5 is in the rotating plane of the pull rod 1. In general, the tie bar 1 is located at a middle position of the support plate 5 in the width direction of the support plate 5.

In some embodiments, referring to fig. 1 to 13, an external thread 11 is disposed on an outer circumference of the pull rod 1 near the insertion end, an internal thread is disposed in the locking sleeve 3 and can be screwed with the external thread 11, and the locking sleeve 3 is used for abutting against the pressing clamp 2 when moving toward the insertion end. Through the bolted connection of internal thread with external screw thread 11, twist locking sleeve 3 through manual, then locking sleeve 3 is along the axial displacement of pull rod 1, can the ejection compress tightly splint 2 to well lid on, also can reverse release compress tightly the well lid, and the packing force to splint 2 is big more, and then pull rod 1 is just more stable on the well lid, and the fixed then is more firm, just more stable when opening the well lid.

Specifically, as seen from fig. 1, the outer diameter of the lower end of the locking sleeve 3 is larger than that of the upper end, and the lower end is abutted to the pressing clamp plate 2, which is similar to the locking mode that an adjusting sleeve on a mobile phone support is used for locking a desktop and the like in daily use.

In some embodiments, referring to fig. 1 to 13, the clamping plate 4 is plate-shaped, and one end of the clamping plate is detachably connected to the insertion end, and an included angle between a plane formed by the clamping plate 4 in the length and width directions and the axial direction of the pull rod 1 is 30 to 150 °. Through dismantling connected mode, can make and form beta structure between cardboard 4 and the pull rod 1, be convenient for accomodate cardboard 4, also can not lose the joint to the well lid bottom simultaneously. In fig. 11, α represents 30 ° and β represents 150 °.

As shown in fig. 11, in order to realize that the clamping plate 4 can also form a folded shape with the pull rod 1, and save the occupied space, the one end of the clamping plate 4 can be hinged with the insertion end of the pull rod 1, and the rotation angle of the clamping plate 4 can be adjusted, namely adjusted between 30 degrees to 150 degrees, so that the clamping plate 4 can be rotated to the same plane with the pull rod 1, namely the clamping plate 4 and the pull rod 1 are tightly attached to the bottom of the supporting plate 5 and are folded, so that the space can be saved, and the carrying is convenient.

As an embodiment of the above hinge, a first hinge ring is arranged at one end of the clamping plate 4, a second hinge ring is arranged at the insertion end, the first hinge ring and the second hinge ring are coaxially aligned, bolts are simultaneously inserted into the first hinge ring and the second hinge ring, a nut is arranged at one end of each bolt, the bolts can be locked through adjusting the nuts, and then the first hinge ring and the second hinge ring are clamped between the nut and the bolt cap, so that the clamping plate 4 and the pull rod 1 are locked in rotation; otherwise, the locking of the clamping plate 4 is released, and the clamping plate 4 can rotate by a certain angle to realize the angle adjustment; after adjustment, the clamping plate 4 can be locked by the control nut again. Certainly, there are also other forms for the detachable connection mode of cardboard 4, for example the spiro union has the screw on pull rod 1, through revolving the screw, the screw can revolve to in cardboard 4, then has realized being connected of pull rod 1 and cardboard 4, through the different states of adjusting cardboard 4, can realize the adjustment of angle between cardboard 4 and the pull rod 1, after the adjustment again with screw locking fixed can.

In some embodiments, referring to fig. 1 to 13, the manhole cover opening device further includes a cover plate 6, and the cover plate 6 is disposed above the supporting plate 5 and detachably connected to the supporting plate 5 to form an integrated structure. The cover plate 6 is connected with the support plate 5 through a plurality of buckles, the connecting form of the buckles can refer to the connecting form of the buckles between the lunch box cover and the box body in the prior art, the cover plate 6 is also rectangular and can be matched with the support plate 5 to be connected or sealed, the cover plate 6 is sealed above the support plate 5, and appliances such as iron rods on the support plate 5 can be prevented from falling off during carrying.

In some embodiments, please refer to fig. 1 to 13, the detachable connection is a plurality of buckles 61 hinged to the side of the cover plate 6, and the plurality of buckles 61 are all engaged and buckled with the end portion of the support plate 5. The buckle 61 has certain elasticity, and can be clamped at the bottom end of the supporting plate 5 forcibly and also can be detached from the supporting plate 5 forcibly.

As shown in fig. 7, specifically, there are at least two clips 61, and one or four clips are respectively disposed on two opposite sides of the cover plate 6, and one clip is disposed on each of four sides of the cover plate 6, and can be tightly connected with the support plate 5. A plurality of buckles 61 are all clamped at the bottom end of the supporting plate 5, so that an integrated structure or a whole is formed between the cover plate 6 and the supporting plate 5.

In some embodiments, referring to fig. 1 to 13, the locking sleeve 3 is in a truncated cone shape, and an end near the insertion end has a larger outer diameter and an end with a larger outer diameter is adapted to abut against the clamping plate 2. Usually, revolve wrong locking sleeve 3 clockwise, can make locking sleeve 3 compress tightly splint 2 to the well lid on, revolve wrong locking sleeve 3 anticlockwise, can release the clamp to splint 2 or well lid tightly, the area of contact with splint 2 is big more, then splint 2 are pressed from both sides tightly just more stable, joint strength is big more between pull rod 1 and the well lid, more be difficult to drop when opening etc. guarantee to open the effect, solved the technical problem who exists among the prior art.

In some embodiments, referring to fig. 1 to 13, the supporting plate 5 has a plurality of receiving grooves 51 at an upper end thereof, the triangular cushion blocks 7 and the iron rods 8 are respectively disposed in the plurality of receiving grooves 51, and the clamping plate 2 is disposed in one of the receiving grooves 51. In actual operation, when opening the well lid, need use various instruments or appurtenance, like triangle cushion 7, borer 8, iron rod etc. in order to realize these instruments can become an organic whole with backup pad 5, make things convenient for the later stage to use, then set up a plurality of storage tanks 51 in backup pad 5, a plurality of instruments that can the holding needs use, buckle these instruments cover with apron 6 at last, then it is comparatively convenient during the later stage use, need not seek these instruments everywhere, improve the well lid and open operating efficiency.

In fig. 4, three receiving grooves 51 are illustrated, wherein a triangular cushion block 7 (placed in the receiving groove 51 at the side portion) and a brazing filler metal 8 (placed in the receiving groove 51 at the middle portion) are respectively placed, and the splint 2 is taken out when the splint 2 is needed to be used, and is placed in the corresponding receiving groove 51 when the splint is not needed to be used. The triangular cushion block 7 has the function that after the well lid is opened, the cushion can be placed on the ground at the lower end of the well lid, and the well lid is supported by a certain height. The function of the iron chisel 8 is that after the well lid is opened, the iron chisel is used for knocking sludge or slag and the like at the upper end of the well base in the well lid, and is convenient for cleaning.

In some embodiments, referring to fig. 1 to 13, the upper end of the supporting plate 5 is hinged with a handle 9, and the handle 9 can rotate toward the supporting plate 5 and form a folded shape. Usually set up two handles 9 side by side on backup pad 5, after pull rod 1 is fixed, two handles 9 are pulled respectively to the staff left and right hands, can open the well lid after exerting oneself, and it is convenient to grip the handle, and the well lid is opened convenient in a flexible way. When the handle 9 is disposed, the position of the handle 9 may be disposed first and then the position of the accommodating groove 51 may be disposed to avoid the position of the accommodating groove 51.

Specifically, the hinge mode of the handle 9 can refer to the hinge mode between the handle 9 and the lunch box cover in the prior art, the handle 9 is required to be pulled to be vertical, and then the supporting plate 5 can be pulled by inserting fingers into the handle 9. When the handle 9 is not used, the handle 9 naturally approaches the support plate 5 under the action of gravity, and the handle 9 and the support plate 5 are folded.

In some embodiments, referring to fig. 1 to 13, the clamping plates 2 are overlapped on both sides of the upper end of the through hole of the manhole cover, so that the avoiding groove 21 is in a semicircular or U shape. Generally, the pull rod 1 is a rod-shaped member, and the cross section of the pull rod 1 in the horizontal direction in fig. 1 is circular, so that the pull rod 1 can be clamped into the avoiding groove 21, most of the lower end area of the locking sleeve 3 can be abutted against the clamping plate 2, the locking sleeve 3 applies pressure to the clamping plate 2, clamping force is formed between the clamping plate 2 and the clamping plate 4, and the well lid can be clamped and fixed. The utility model discloses in do not do the restriction to the form of dodging groove 21, as long as can use with pull rod 1 cooperation, make locking sleeve 3 compress tightly on splint 2 can.

Specifically, before the locking sleeve 3 is operated, the clamping plate 2 is inserted from the side of the pull rod 1, the pull rod 1 is placed in the avoiding groove 21, and then the locking sleeve 3 is screwed. After the well lid is closed, reverse operation locking sleeve 3 takes out splint 2, can break away from pull rod 1 from the well lid.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Well lid opening device, its characterized in that includes:

the pull rod is provided with an insertion end suitable for being inserted into the through hole of the well lid, and the insertion end is connected with a clamping plate suitable for clamping the bottom end of the well lid;

the clamping plate is covered above the through hole of the well lid, the side part of the clamping plate is provided with an avoidance groove suitable for accommodating the pull rod, and the clamping plate is inserted from the side part of the pull rod and enables the pull rod to be arranged in the avoidance groove;

the locking sleeve is coaxially sleeved on the outer circumference of the pull rod and located above the clamping plate and is suitable for pressing the clamping plate to the upper end of the well lid downwards to form a clamping structure of the clamping plate and the clamping plate.

2. The manhole cover opening device according to claim 1, further comprising a support plate, wherein one end of the pull rod, which is away from the insertion end, is hinged to the bottom end of the support plate, and the pull rod is folded with the support plate after rotating around the hinge in a direction close to the support plate.

3. The well lid opening device according to claim 1, wherein an external thread is provided on an outer circumference of the pull rod near the insertion end, an internal thread is provided in the locking sleeve and is capable of being screwed with the external thread, and the locking sleeve is used for abutting and pressing the clamping plate when moving toward the insertion end.

4. The manhole cover opening device of claim 1, wherein the clamping plate is plate-shaped, one end of the clamping plate is detachably connected with the insertion end, and an included angle formed by a plane formed by combining the length and the width directions of the clamping plate and the axial direction of the pull rod is 30-150 degrees.

5. The manhole cover opening device of claim 2, further comprising a cover plate covering the support plate and detachably connected to the support plate to form an integrated structure.

6. The manhole cover opening device according to claim 5, wherein the detachable connection is a plurality of buckles hinged to the side portion of the cover plate, and the plurality of buckles are matched and clamped with the end portion of the support plate close to the end portion.

7. The manhole cover opening device of claim 1, wherein the locking sleeve is in the form of a circular truncated cone, and the end near the insertion end has a larger outer diameter and the end having the larger outer diameter is adapted to abut against the clamping plate.

8. The manhole cover opening device of claim 2, wherein the supporting plate has a plurality of receiving grooves at an upper end thereof, the receiving grooves are respectively provided with a triangular block and a drill rod, and the clamping plate is disposed in one of the receiving grooves.

9. The manhole cover opening device of claim 2, wherein the supporting plate is hinged at an upper end thereof with a handle, and the handle is rotatable in a direction approaching the supporting plate and is folded.

10. The manhole cover opening device of claim 1, wherein the clamping plates are overlapped on both sides of the upper end of the manhole cover through hole, and the avoiding groove is in a semicircular or U shape.

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