CN214530796U

CN214530796U - Mechanical spring power-assisted well lid

Info

Publication number: CN214530796U
Application number: CN202120073396.8U
Authority: CN
Inventors: 郭宏亮; 张健; 王锦德
Original assignee: Shanxi Yuansheng Industry And Trade Co ltd
Current assignee: Shanxi Yuansheng Industry And Trade Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-10-29
Anticipated expiration: 2031-01-12

Abstract

The utility model relates to a well lid, in particular to a mechanical spring power-assisted well lid; the well seat comprises a rectangular cover plate and a well seat, wherein the cover plate is hinged on the well seat, the inner sides of two frames vertical to the hinged side of the well seat are respectively provided with a sliding chute, and two torsional springs are connected between the hinged sides of the cover plate and the well seat; a bolt lock with a spring is arranged at the edge of one side opposite to the hinged edge of the cover plate, a clamping groove is arranged on the inner side surface of the well seat corresponding to the bolt lock, an opening is formed in the top of an inserting block of the bolt lock, and a key hole is formed in the cover plate corresponding to the opening in the top of the inserting block; the inner side of the frame at the hinged side of the well seat is hinged with a safety baffle through a hinged shaft; the well lid is also provided with an unlocking key; the power of the torsion spring enables a single person to easily open the cover plate by using the force less than 25 KG; a special lock and a key are adopted, and the lock is unlocked by using a special key; the anti-theft function is realized, and accidental opening is prevented; adopt the safety shield structure, prevent that the apron accident from closing, causing personnel's potential safety hazard.

Description

Mechanical spring power-assisted well lid

Technical Field

The utility model relates to a well lid, concretely relates to mechanical spring helping hand well lid.

Background

Present harbour and airport are all well lids at F900 level with the well lid, and the well lid pressure-bearing requires highly, and corresponding well lid size is big, and weight is heavy, and the apron is opened must many people or opens with the help of equipment, opens the difficulty, and is consuming time many, because the apron is heavier still exist the accident and close, many people open moreover and have the potential safety hazard.

Disclosure of Invention

The utility model discloses a solve the single difficulty of opening of well lid of F900 rank, and the easy accident closes the technical problem who has the potential safety hazard, provide a mechanical spring helping hand well lid, realize that single no more than 25KG power easily opens, and have the theftproof, prevent maliciously open and prevent the function that the accident closed.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: a mechanical spring power-assisted well lid comprises a rectangular cover plate and a well seat, wherein the cover plate is hinged to the well seat, the inner sides of two side frames perpendicular to the hinged edge of the well seat are respectively provided with a sliding groove, two torsional springs are connected between the hinged sides of the cover plate and the well seat, fixed support legs of the torsional springs are mounted on the cover plate, and movable support legs are supported in the sliding grooves; a latch lock with a spring is arranged at the edge of one side opposite to the hinged edge of the cover plate, a clamping groove is arranged on the inner side surface of the well seat corresponding to the latch lock, the top of an insert block of the latch lock is provided with a hole, and a key hole is arranged on the cover plate corresponding to the hole on the top of the insert block; the inner side of the frame at the hinged side of the well seat is hinged with a safety baffle through a hinged shaft, the upper end of the safety baffle is a straight plate, the lower end of the straight plate is bent towards the hinged side of the cover plate and the well seat to form a bending section, the lower end of the bending section is provided with a hinged end, the hinged end is provided with a strip-shaped hole, and the hinged shaft penetrates through the strip-shaped hole; the well lid has still been set and has been unlocked the key, it includes the straight-bar to unlock the key, the one end of straight-bar is connected with the crowbar, the tip appearance of crowbar is unanimous with the key hole and overall dimension is less than the size of key hole and inserted block top trompil.

The working principle is as follows: when the cover plate is in a closed state and needs to be opened, a socket wrench of an unlocking key is used for unscrewing a fixing bolt of the cover plate, a crowbar of the unlocking key extends into a key hole and is inserted into an opening at the top of an insertion block, the crowbar is rotated to enable the insertion block of a plug pin lock to be drawn out from a clamping groove, the cover plate is opened, then the cover plate is lifted upwards, the cover plate is easily opened under the assistance of a torsion spring, the maximum opening angle of the cover plate is larger than 100 degrees, and the cover plate is opened by a single person with the force smaller than 25KG under the assistance of the torsion spring; after the cover plate is opened, the safety baffle is supported, and the strip-shaped holes of the safety baffle enable the top of the automatic falling bending section of the safety baffle to be in contact with the side face of the matched and hinged position of the well seat, so that the safety baffle is clamped, and the cover plate is prevented from being accidentally closed; when the cover plate is required to be covered, the safety baffle is pulled upwards, the safety baffle rotates downwards along the covering direction of the cover plate, then the cover plate is pushed downwards, and the cover plate is covered on the well seat, and the rear insert block is automatically inserted into the clamping groove to realize locking.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model discloses reduce manpower and materials, improve construction maintenance security and convenience.

The cover plate is provided with a torsion spring, and the cover plate can be easily opened by a single person with the force less than 25KG by means of the assistance of the torsion spring in the opening process of the cover plate;

the special lockset and key are adopted, the bolt lock is automatically locked after the cover is closed by spring force, and the special key is used for unlocking through a round hole on the cover when the bolt lock is unlocked; the anti-theft function is realized, and accidental opening is prevented.

Adopt the safety shield structure, prevent that the apron accident from closing, causing personnel's potential safety hazard.

Drawings

Fig. 1 is the utility model discloses the well lid structure schematic diagram under the state of opening.

Fig. 2 is the utility model discloses plan view after the well lid is closed.

Fig. 3 is one of the cross-sectional views of the manhole cover of the present invention.

Fig. 4 is the second cross-sectional view of the manhole cover of the present invention.

Fig. 5 is a schematic view of the unlocking key.

Fig. 6 is a schematic view of the unlocking key used in cooperation with the manhole cover.

The figures are labeled as follows:

1-cover plate, 2-well seat, 3-chute, 4-torsion spring, 5-insert block, 6-safety baffle, 7-strip-shaped hole, 8-articulated shaft, 9-keyhole, 10-straight rod, 11-crowbar, 12-fixed shaft, 13-spring, 14-lantern ring, 15-fixed bolt, 16-socket wrench, 17-lifting hook, 18-lifting hook hole.

Detailed Description

The present invention will be further described with reference to the following specific examples.

Examples

As shown in fig. 1-4, a mechanical spring assisted well lid comprises a rectangular cover plate 1 and a well base 2, wherein the cover plate 1 is hinged on the well base 2, two sliding chutes 3 are respectively arranged at the inner sides of two frames perpendicular to the hinged side of the well base 2, two torsion springs 4 are connected between the hinged sides of the cover plate 1 and the well base 2, as shown in fig. 1, a sleeve shaft is arranged at the back of the cover plate 1, the torsion springs 4 are sleeved on the sleeve shaft, fixed support legs of the torsion springs 4 are arranged on the cover plate 1, and movable support legs are supported in the sliding chutes 3; a latch lock with a spring is arranged at the edge of one side opposite to the hinged edge of the cover plate 1, a clamping groove is arranged on the inner side surface of the well seat 2 corresponding to the latch lock, the top of an inserting block 5 of the latch lock is provided with an opening, and a key hole 9 is arranged on the cover plate 1 corresponding to the opening on the top of the inserting block 5; the inner side of the frame at the hinged side of the well seat 2 is hinged with a safety baffle 6 through a hinged shaft 8, the upper end of the safety baffle 6 is a straight plate, the lower end of the straight plate is bent towards the hinged side of the cover plate 1 and the well seat 2 to form a bending section, the lower end of the bending section is provided with a hinged end, the hinged end is provided with a strip-shaped hole 7, and the hinged shaft 8 penetrates through the strip-shaped hole 7; the well lid still sets the key of unblanking, the key of unblanking includes straight-bar 10, the one end of straight-bar 10 is connected with crowbar 11, the tip appearance of crowbar 11 is unanimous with key hole 9 and overall dimension is less than the size of key hole 9 and inserted block top trompil.

Further, as shown in fig. 1, the latch lock includes a fixed shaft 12, one end of the fixed shaft is fixed on the cover plate 1, the other end of the fixed shaft is sequentially sleeved with a spring 13 and an insert block 5 from inside to outside, one end of the spring 13 is fixedly connected with the insert block 5, the other end of the spring is fixedly connected with the fixed end of the fixed shaft 12, a sleeve ring 14 is fixedly connected to the cover plate 1 corresponding to the insert block 5, and the insert block 5 is arranged in the sleeve ring 14 in a penetrating manner.

Further, as shown in fig. 1, a threaded hole is formed in one end, away from the hinged side of the cover plate 1 and the well seat 2, of the chute 3, a fixing bolt 15 is arranged on the cover plate 1 corresponding to the threaded hole, and the dual anti-theft is achieved by matching with a bolt lock.

Further, as shown in fig. 1, a grid-shaped reinforcing rib is provided on the back of the cover plate 1, and one end of the fixing shaft 12 is fixed to the reinforcing rib.

Further, as shown in fig. 1, a connecting plate is arranged on the periphery of the bottom of the well base 2, a plurality of triangular reinforcing ribs are connected between the connecting plate and the outer side surface of the well base 2, and a long hole is formed in the connecting plate between adjacent triangular reinforcing ribs.

Further, as shown in fig. 5, one end of the straight rod 10 of the unlocking key, which is connected with the crowbar 11, is further connected with a socket wrench 16, the other end of the straight rod 10 is provided with a lifting hook 17, and the cover plate 1 is further provided with a lifting hook hole 18. The special key has the bolt opening spanner function, the lifting hook at the lifting hole and the bolt locking key function, and one tool realizes all opening functions of the well cover and prevents burglary.

Preferably, the cover plate 1, the well seat 2 and the safety baffle 6 are all made of nodular cast iron.

The working principle is as follows: when the cover plate 1 is in a closed state and needs to be opened, a fixing bolt 15 of the cover plate 1 is unscrewed by using a socket wrench of an unlocking key, a crowbar 11 of the unlocking key extends into a key hole 9 and is inserted into an opening at the top of an insertion block 5, the insertion block 5 of a plug pin lock is drawn out from a clamping groove by rotating the crowbar 11, the cover plate is opened, then the cover plate 1 is lifted upwards, the cover plate 1 is easily opened under the assistance of a torsion spring 4, the maximum opening angle of the cover plate is larger than 100 degrees, and the cover plate 1 is easily opened by a single person with the force smaller than 25KG by virtue of the assistance of the torsion spring 4 in the opening process; after the cover plate 1 is opened, the safety baffle 6 is held up, and the strip-shaped holes of the safety baffle 6 enable the top of the automatic falling bending section of the safety baffle 6 to be in lateral contact with the matched and hinged position of the well seat, so that the safety baffle is clamped, and the cover plate 1 is prevented from being accidentally closed; when the cover plate 1 needs to be covered, the safety baffle 6 is pulled upwards, the safety baffle 6 rotates downwards along the covering direction of the cover plate 1, then the cover plate 1 is pushed downwards, and the cover plate 1 covers the well seat 2, and the back insert block 5 is automatically inserted into the clamping groove to realize locking.

Claims

1. Mechanical spring helping hand well lid, its characterized in that: the hinge structure comprises a rectangular cover plate (1) and a well seat (2), wherein the cover plate (1) is hinged on the well seat (2), the inner sides of two frames vertical to the hinged side of the well seat (2) are respectively provided with a sliding chute (3), two torsional springs (4) are connected between the hinged sides of the cover plate (1) and the well seat (2), fixed supporting legs of the torsional springs (4) are arranged on the cover plate (1), and movable supporting legs are supported in the sliding chutes (3); a latch lock with a spring is arranged at the edge of one side opposite to the hinged side of the cover plate (1), a clamping groove is arranged on the inner side of the well seat (2) corresponding to the latch lock, an opening is formed in the top of an inserting block (5) of the latch lock, and a key hole (9) is formed in the cover plate (1) corresponding to the opening in the top of the inserting block (5); the inner side of the frame at the hinged side of the well seat (2) is hinged with a safety baffle (6) through a hinged shaft (8), the upper end of the safety baffle (6) is a straight plate, the lower end of the straight plate is bent towards the hinged side of the cover plate (1) and the well seat (2) to form a bending section, the lower end of the bending section is provided with a hinged end, the hinged end is provided with a strip-shaped hole (7), and the hinged shaft (8) penetrates through the strip-shaped hole (7); the well lid still sets the key of unblanking, the key of unblanking includes straight-bar (10), the one end of straight-bar (10) is connected with crowbar (11), the tip appearance of crowbar (11) is unanimous with key hole (9) and overall dimension is less than the size of key hole (9) and inserted block top trompil.

2. The mechanical spring-assisted well lid of claim 1, wherein: the bolt lock comprises a fixed shaft (12), one end of the fixed shaft is fixed on the cover plate (1), the other end of the fixed shaft is sequentially sleeved with a spring (13) and an insert block (5) from inside to outside, one end of the spring (13) is fixedly connected with the insert block (5), the other end of the spring is fixedly connected with the fixed end of the fixed shaft (12), a sleeve ring (14) is fixedly connected onto the cover plate (1) corresponding to the insert block (5), and the insert block (5) is arranged in the sleeve ring (14) in a penetrating mode.

3. The mechanical spring-assisted well lid of claim 1, wherein: one end of the sliding groove (3) far away from the hinged side of the cover plate (1) and the well seat (2) is provided with a threaded hole, and the cover plate (1) corresponding to the threaded hole is provided with a fixing bolt (15).

4. The mechanical spring-assisted well lid of claim 2, wherein: the back of the cover plate (1) is provided with latticed reinforcing ribs, and one end of the fixed shaft (12) is fixed on the reinforcing ribs.

5. The mechanical spring-assisted well lid of claim 1, wherein: the edge all around of the bottom of well seat (2) is provided with the connecting plate, is connected with a plurality of triangle-shaped strengthening ribs between the lateral surface of connecting plate and well seat (2), has seted up rectangular hole on the connecting plate between the adjacent triangle strengthening rib.

6. The mechanical spring-assisted well lid of claim 1, wherein: the unlocking key is characterized in that one end, connected with a crowbar (11), of a straight rod (10) of the unlocking key is further connected with a socket wrench (16), the other end of the straight rod (10) is provided with a lifting hook (17), and a lifting hook hole (18) is further formed in the cover plate (1).

7. The mechanical spring-assisted well lid of claim 1, wherein: the cover plate (1), the well seat (2) and the safety baffle (6) are all made of nodular cast iron.