CN210975894U

CN210975894U - Lock for well cover

Info

Publication number: CN210975894U
Application number: CN201921640333.5U
Authority: CN
Inventors: 李耀宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-10
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a lock for well lid, including the taper lock body mounting groove (2) of seting up in well lid (1) edge, install lock body (100) in lock body mounting groove (2), lock body (100) includes king-rod (6), king-cap (7) has set firmly in king-rod (6) upper end, slot (12) are evenly distributed on the cambered surface of king-cap (7); the lock bolt is installed after the lower part of well pole (6) passes the bottom surface through-hole of lock body mounting groove (2) and is locked bolt pole (9), it is equipped with spring (8) to lie in the cover between lock cap (7) and lock body mounting groove (6) bottom surface on well pole (6), well pole (6) bottom is located lock body mounting groove (2) with lock cap (7) after revolving wrong lock nut (10) compression spring (8). The utility model relates to a rationally, fine practical application is worth having.

Description

Lock for well cover

Technical Field

The utility model relates to a city ground facility technical field specifically is a simple tool to lock for well lid of practical again.

Background

There are many underground pipes in urban construction, such as sewers, underground gas pipes, water supply pipes, power pipes, communication pipes, defense pipes, etc., which have an outlet to the ground at every other section, the section from the pipe to the ground is called a manhole, which is usually flush with the ground, and therefore a cover is needed to cover the manhole, called a manhole cover. The inspection well cover is usually made of reinforced cement, metal, reinforced plastic and other materials, and the shape of the inspection well cover mainly takes a round shape and a square shape.

The existing anti-theft well lid in China mainly adopts six modes: the first is iron chain connection, the second is hinge connection, the third is backward rotation skill, the fourth is bolt hole blocking skill, the fifth is lock key, and the sixth is shifting fork joint linkage. The first and the second can not lock the well cover and the well ring into a whole, and are easy to open, and the iron chain and the hinge can be broken by prying with a steel chisel; the third method is that the well cover can be opened and taken away only by rotating in the reverse direction; fourthly, the iron hook hole is blocked by a bolt and a nut, but the well cover can be opened and taken away only by inserting two ends of an iron wire bent into an arc shape into two grooves below the bolt head; the fifth and sixth well covers can be locked with the well ring into a whole, but have high requirements on the matching space and the matching precision, a new well cover needs to be cast to match with the well cover, the existing well cover cannot be transformed and used, the cost is quite high, the difficult problem of rust prevention cannot be solved, and the well cover cannot be opened by self after being installed for about half a year and cannot be put into a well for operation. Therefore, the various types of manhole cover anti-theft devices have no ideal effect. In addition, install the built-in lock on the current well lid usually, but the built-in lock is not only with high costs, moreover because the built-in lock is located the ditch inslot on well lid surface, no matter stretch into the key or open inconvenient.

Disclosure of Invention

The utility model aims at providing a novel tool to lock that well lid was used, this tool to lock economy, practicality facilitate the use.

The utility model discloses an adopt following technical scheme to realize:

a lock for a well lid comprises a tapered lock body installation groove arranged at the edge of the well lid, wherein a lock body is installed in the lock body installation groove, the lock body comprises a middle rod, a lock cap is fixedly arranged at the upper end of the middle rod, and slots are uniformly distributed in the arc surface of the lock cap; the lower part of the middle rod penetrates through a through hole in the bottom surface of the lock body mounting groove and then is provided with a lock tongue rod, a spring is sleeved between the lock cap and the bottom surface of the lock body mounting groove on the middle rod, and the lock cap is positioned in the lock body mounting groove after the bottom end of the middle rod compresses the spring by screwing a lock nut; the edge of the bottom surface of the well lid is provided with a limiting groove used for placing a bolt rod along the radial position of the lock body mounting groove.

The key also comprises a key I or a key II;

the key I comprises a rod body, the bottom surface of the rod body is an inner arc surface matched with the arc surface of the lock cap, bulges matched with the slots in the arc surface of the lock cap are uniformly distributed on the inner arc surface, and a handle is arranged at the upper end of the rod body.

The key II comprises a cross rod, the end part of the cross rod is hinged with a pull rod through an ear seat and a pin shaft, and the end part of the pull rod is provided with a drag hook; the middle part of the cross rod is provided with a pressure lever, and the end part of the pressure lever is connected with a key I through a plug-in mounting.

When the key is used, the key I or the key II is selected according to different pretightening forces of the spring. When the spring force is relatively small, the key I is adopted. With the laminating of the intrados of I lower extreme of key and the convex arc face of lock cap 7 for the protruding of intrados is with the slot cooperation back of convex arc face, pushes down key I, makes behind lock cap and the king-rod extrusion spring downstream, and the spring bolt pole breaks away from the spacing groove after, through handle rotary key I, the drive king-rod is rotatory, drives the spring bolt pole and rotates, makes the spring bolt pole break away from the well seat, lies in the well lid completely after, realizes the well lid unblock. On the contrary, when the key I is rotated to drive the lock cap, the middle rod and the spring bolt rod to rotate to the limiting groove, the middle rod and the spring bolt rod move upwards under the action of the spring, then the spring bolt rod moves upwards again in the limiting groove and stretches into the well seat again, and the well cover is locked. When spring force is great relatively, when singly leaning on the unable smooth extrusion spring of manpower, adopt key II, stretch into the existing iron hook hole of well lid with the drag hook of pull rod bottom, depression bar to suitable position on the slip horizontal pole, then put into the depression bar lower extreme with key I for I bottom surface of key is located the lock nut and coordinates well, then pushes down the expansion end of horizontal pole, utilizes lever principle, realizes pushing down behind the spring of lock body, and the unblock is realized to rotatory key I, and other steps are the same as above.

The utility model discloses design simple and practical ' open lock ' on the well lid, through design pretightning force and the spacing groove cooperation that regulating spring is different in the tool to lock, can be so that adopt simple tools such as sled hook can't open the well lid, only use the key can convenient and fast open the well lid, realize functions such as theftproof.

The utility model relates to a rationally, fine practical application is worth having.

Drawings

Figure 1 shows a front view of a well lid.

Figure 2a is a schematic view of the upper surface of the manhole cover.

Figure 2b shows a schematic view of the lower surface of the well lid.

Fig. 3 shows a cross-sectional view of the well lid.

Figure 3a shows a schematic view of the lock body construction.

Fig. 4 shows a schematic view of the locking bar (locking cap and centre bar).

Fig. 5 shows a latch bolt lever schematic.

Figure 6 shows a top view of the locking cap.

Fig. 7 shows a schematic view of a key i.

Fig. 8 shows a key ii schematic.

Fig. 9 shows the upper end of the pressure rod and the sliding groove of the cross rod.

Figure 10 shows a schematic view of the slide channels on the crossbar.

FIG. 11 is a schematic view showing the engagement of the upper end of the pressing rod with the rail groove of the crossbar.

In the figure: 1-well lid, 2-lock body installation groove, 3-iron hook hole, 4-limiting groove, 5-oil filling small hole, 6-middle rod, 7-locking cap, 8-spring, 9-bolt rod, 10-locking cap, 11-major arc through hole, 12-slot, 13-bulge, 14-rod body, 15-handle, 16-groove, 17-inner arc surface, 18-compression rod, 19-boss, 20-pull rod, 21-drag hook, 22-cross rod, 23-track groove, 24-slide groove, 25-lug seat, 26-pin shaft, 27-neck and 28-cap part.

Detailed Description

The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a tool to lock for well lid, as shown in figure 2a, is including offering the taper lock body mounting groove 2 at 1 edge of well lid, as shown in figure 1, and lock body mounting groove 2 is big-end-up, reserves when casting the well lid. As shown, the lock body 100 is installed in the lock body installation groove 2. As shown in fig. 3a, the lock body 100 includes a middle rod 6, a lock cap 7 is fixedly arranged at the upper end of the middle rod 6, as shown in fig. 4, the lock cap 7 is a convex arc surface, and 4 slots 12 (distributed in four directions, i.e., up, down, left, and right, as shown in fig. 6) are uniformly distributed on the arc surface of the lock cap 7; the lower part of the middle rod 6 is provided with threads and penetrates through a through hole on the bottom surface of the lock body mounting groove 2 to be provided with a bolt rod 9, the cross section of the lower part of the middle rod 6 is a major arc surface (namely, a part of the side surface of the middle rod is cut off along the axial direction to form a plane), the bolt rod 9 is provided with a major arc through hole 11 (as shown in figure 5) matched with the cross section of the lower part of the middle rod 6, and the bolt rod 9 is assembled on the lower part of the middle rod 6 through the major arc through hole 11 to form rotary. The middle rod 6 is sleeved with a spring 8 between the lock cap 7 and the bottom surface of the lock body mounting groove 6, and the bottom end of the middle rod 6 compresses the spring 8 by screwing a locking nut 10 to position the lock cap 7 in the lock body mounting groove 2. As shown in fig. 1 and 2b, a limiting groove 4 for placing a bolt rod 9 is arranged at the position of the lock body installation groove 2 along the radial direction of the edge of the bottom surface of the well cover 1. As shown in fig. 1, the side surface of the well cover 1 is provided with an oil injection small hole 5 communicated with the lock body installation groove 2.

Also comprises a key I or a key II.

As shown in figure 7, the key I comprises a rod body 14, the bottom surface of the rod body 14 is an inner arc surface 17 matched with the arc surface of the lock cap 7, protrusions 13 matched with slots 12 in the arc surface of the lock cap 7 are uniformly distributed on the inner arc surface 17, and a handle 15 is arranged at the upper end of the rod body 14.

As shown in fig. 8, the key ii comprises a cross bar 22, the end of the cross bar 22 is hinged with a pull rod 20 through an ear seat 25 and a pin 26, and the end of the pull rod 20 is provided with a draw hook 21; the middle part of the cross rod 22 is provided with a pressure lever 18, and the end part of the pressure lever 18 is connected with a key I through plug-in mounting. The surface of a handle 15 of the key I is provided with a groove 16, and the lower end surface of a pressure lever 18 of the key II is provided with a boss 19 matched with the groove 16, so that the pressure lever is axially matched with the key I.

The upper end of the pressure lever 18 is in sliding fit with the cross bar 22, and can adopt various modes, as shown in fig. 9 and 10, a sliding groove is formed on the cross bar 22, and the upper neck 27 of the pressure lever 18 passes through the sliding groove and then is provided with a cap 28 in a threaded mode and the like, so that the pressure lever can slide along the cross bar; alternatively, as shown in fig. 11, the cap portion at the upper end of the strut 18 is located in the track groove 23 at the bottom of the crossbar 22 to slide along the crossbar.

During specific assembly, firstly, after the spring 8 is sleeved on the middle rod 6, the lower part of the middle rod penetrates through a through hole in the bottom surface of the lock body mounting groove 2, the bolt rod 9 is sleeved at the lower end part of the middle rod 6 in a matched mode through the major arc through hole 11, then the lock nut 10 is screwed and locked at the lower end of the middle rod 6 by adopting a tool until the spring 8 is contracted, the pull-down lock cap 7 is completely positioned in the lock body mounting groove 2, and the assembly is completed. When the spring bolt pole 9 was located spacing groove 4, spring bolt pole 9 stretched out 1 edges of well lid, stretched into the lockhole of well seat, realized that the well lid is in the locking state.

When the key is used specifically, the key I or the key II is selected according to different pretightening forces of the spring 8. When the force of the spring 8 is relatively small, the key I is adopted. With the laminating of the intrados 17 of I lower extreme of key and the convex arc face of lock cap 7, make the protruding 13 of intrados 17 and the slot 12 cooperation back of convex arc face, push down key I, make

lock cap

7 and 6 extrusion spring 8 back downstream of king-rod, after lock tongue pole 9 breaks away from spacing groove 4, through handle 15 rotary key I, drive king-rod 6 is rotatory, drive lock tongue pole 9 and rotate, make lock tongue pole 9 break away from the well seat, lie in well lid 4 back completely, realize the well lid unblock. On the contrary, when the key I is rotated to drive the lock cap 7, the middle rod 6 and the bolt rod 9 to rotate to the position of the limit groove 4, the middle rod 6 and the bolt rod 9 move upwards under the action of the spring 8, and then the bolt rod 9 moves upwards again in the limit groove 4 and stretches into the well seat again to realize the locking of the well cover. When 8 elasticity of spring is great relatively, when singly leaning on the unable smooth extrusion spring of manpower, adopt key II, stretch into the existing iron hook hole 3 of well lid 1 with the drag hook 21 of pull rod 20 bottom, depression bar 18 to suitable position on the slip horizontal pole 22, then put into depression bar 18 lower extreme with key I, make I bottom surface of key be located lock cap 7 and cooperate, then push down the expansion end of horizontal pole 22, utilize lever principle, realize pushing down behind the spring 8 of lock body 100, the unblock is realized to rotatory key I, the step of other unblocks and locking is with key I.

In the in-service use process, after the tool to lock in the well lid used several years, pour into a little butter through the oiling aperture 5 that is located the well lid side, play lubricated and prevent rusty effect to lock body 100 in the lock body mounting groove 2.

The lock for the well lid can be applied to various ground facilities in cities, such as an inspection well lid, a rain grate and the like.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the detailed description is made with reference to the embodiments of the present invention, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the protection scope of the claims of the present invention.

Claims

1. The utility model provides a tool to lock for well lid which characterized in that: the manhole cover comprises a tapered lock body mounting groove (2) arranged at the edge of a manhole cover (1), wherein a lock body (100) is mounted in the lock body mounting groove (2), the lock body (100) comprises a middle rod (6), a lock cap (7) is fixedly arranged at the upper end of the middle rod (6), and slots (12) are uniformly distributed in the arc surface of the lock cap (7); the lower part of the middle rod (6) penetrates through a through hole in the bottom surface of the lock body mounting groove (2) and then is provided with a bolt rod (9), a spring (8) is sleeved between the lock cap (7) and the bottom surface of the lock body mounting groove (2) on the middle rod (6), and the lock cap (7) is positioned in the lock body mounting groove (2) after the spring (8) is compressed by screwing a locking nut (10) at the bottom end of the middle rod (6); a limiting groove (4) for placing a lock tongue rod (9) is formed in the position, located in the lock body mounting groove (2), of the edge of the bottom surface of the well cover (1) along the radial direction of the edge;

the key also comprises a key I or a key II;

the key I comprises a rod body (14), the bottom surface of the rod body (14) is an inner arc surface (17) matched with the arc surface of the lock cap (7), bulges (13) matched with slots (12) in the arc surface of the lock cap (7) are uniformly distributed on the inner arc surface (17), and a handle (15) is arranged at the upper end of the rod body (14);

the key II comprises a cross rod (22), the end part of the cross rod (22) is hinged with a pull rod (20) through an ear seat (25) and a pin shaft (26), and the end part of the pull rod (20) is provided with a draw hook (21); the middle of the cross rod (22) is provided with a pressure lever (18), and the end part of the pressure lever (18) is connected with a key I in an inserting way.

2. The lockset for a manhole cover according to claim 1, wherein: and the side surface of the well cover (1) is provided with an oil injection small hole (5) communicated with the lock body mounting groove (2).

3. The lock for the well lid according to claim 1 or 2, characterized in that: the section shape of king-rod (6) lower part is the major arc face, it has with king-rod (6) lower part cross-section matched with major arc via hole (11) to open on lock tongue pole (9), lock tongue pole (9) form the normal running fit through its major arc via hole (11) assembly behind king-rod (6) lower part.

4. The lockset for a manhole cover according to claim 3, wherein: the surface of a handle (15) of the key I is provided with a groove (16), and the lower end face of a pressure lever (18) of the key II is provided with a boss (19) matched with the groove (16).

5. The lockset for a manhole cover according to claim 4, wherein: the pressure bar (18)

The upper end is in sliding fit with the cross rod (22).