CN217129204U - Manhole cover lock - Google Patents

Abstract

The utility model discloses a cellar for storing things well lid lock, including the lock core fixing base, the location is rotated on the lock core fixing base and is connected with the lock core, the lock core top is equipped with the theftproof lockhole, the lock core bottom passes the lock core fixing base and fixedly connected with lock core seat, the lock core seat outer wall is fixed with the latch hook; the anti-theft lock hole is internally provided with a lock core column, and the lock core column can open or shield the anti-theft lock hole along the axial displacement of the lock core column. The utility model discloses a cellar for storing things well lid lock has simple structure, the production and processing of being convenient for, and the theftproof lockhole can keep being sealed by the lock stem under the state that does not insert the key, prevents that impurity such as dust silt from blockking up the advantage that theftproof lockhole phenomenon takes place.

Description

Manhole cover lock

Technical Field

The utility model relates to a tool to lock field, it is very much, relate to a cellar for storing things well lid lock.

Background

In recent years, the urbanization construction of China is accelerated, and the number of inspection wells and inspection wells of underground pipelines of facilities such as water supply and drainage, electric power and communication of municipal facilities is greatly increased. For safety and anti-theft, anti-vandalism reasons, the demands on these manhole and inspection shaft well lid locks are great, and the demands on the well lid locks for corrosion protection, anti-theft, anti-vandalism are also increasing. The existing manhole cover lock on the market is complex in structure, the lock hole is usually empty and faces upwards, and impurities such as rainwater, dust and soil are easily poured into the lock hole in a daily use state, so that the lock hole is closed and difficult to clean, and the normal use of the manhole cover lock is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cellar for storing things well lid lock has simple structure, the production and processing of being convenient for, the theftproof lockhole can keep being sealed by the lock stem under the state that does not insert the key, prevents that impurity such as dust silt from blockking up the advantage that theftproof lockhole phenomenon takes place.

The above object of the present invention can be achieved by the following technical solutions:

a cellar well cover lock comprises a lock cylinder fixing seat, wherein a lock cylinder is positioned and rotationally connected to the lock cylinder fixing seat, an anti-theft lock hole is formed in the top of the lock cylinder, the bottom end of the lock cylinder penetrates through the lock cylinder fixing seat and is fixedly connected with a lock cylinder seat, and a lock hook is fixed on the outer wall of the lock cylinder seat;

the anti-theft lock hole is internally provided with a lock core column, and the lock core column can open or shield the anti-theft lock hole along the axial displacement of the lock core column.

The lock core rotates and can drive the lock hook to rotate through the lock core seat, and the lock hook rotates and realizes the locking before cellar well lid and walling crib. The manhole cover lock is simple in structure, and only the lock core fixing seat needs to be fixed at a specified position of the inner wall of the manhole cover during assembly; and the setting of lock pin for shelter from the theftproof lockhole, prevent that impurity etc. from getting into the lockhole, when the cellar for storing things well lid is opened to needs with the key, insert the key, the downward displacement of lock pin does not influence the normal function of well lid lock.

In order to realize automatic reset of the lock cylinder column to shield the anti-theft lock hole, the lock cylinder column is arranged on the lock cylinder seat, the lock cylinder seat at least comprises a top plate and a bottom plate which are fixed with each other, a first through hole for the top end of the lock cylinder column to pass through is formed in the top plate, a second through hole for the bottom end of the lock cylinder column to pass through is formed in the bottom plate, a positioning convex part is arranged on the outer side of the lock cylinder column, the positioning convex part is positioned between the top plate and the bottom plate, a compression spring is sleeved outside the lock cylinder column, the top end of the compression spring is abutted against the bottom wall of the positioning convex part, and the bottom end of the compression spring is abutted against the top wall of the bottom plate;

the anti-theft lock hole penetrates through the lock cylinder, the top end of the lock cylinder column extends into the anti-theft lock hole, the outer diameter of the positioning convex part is larger than the apertures of the anti-theft lock hole and the second through hole, and when the compression spring is in an unstressed state, the top end of the lock cylinder column is flush with the end face of the anti-theft lock hole.

In order to facilitate the processing and installation of the lock core column, the positioning convex part is set as a first shaft clamp, and a first annular groove for embedding the first shaft clamp is arranged on the outer side of the lock core column.

For the displacement stroke of injecing the lock core post, lock core post bottom is provided with the undergauge positioning section, the undergauge positioning section laminating cup joints in the second through-hole and is used for injecing the lock core post stroke.

In order to facilitate the processing of the lock cylinder seat, the lock cylinder seat is simple in structure and stable in structure, the lock cylinder seat is of a rectangular frame structure and comprises a top plate, a bottom plate and two side plates which are oppositely arranged, and the lock hook is fixed on the outer side of one side plate.

In order to realize the positioning installation of the lock cylinder and prevent the lock cylinder from axially separating from the lock cylinder fixing seat, a second annular groove is arranged outside the lock cylinder, a second shaft clamp is embedded in the second annular groove, and the lock cylinder is positioned, rotated and connected with the lock cylinder fixing seat through the second shaft clamp.

In order to reduce the friction resistance between the lock cylinder and the front part of the lock cylinder fixing seat when the lock cylinder rotates, a wave-shaped elastic gasket is arranged between the lock cylinder fixing seat and the lock cylinder seat.

In order to limit the rotation angle of the lock cylinder, the lock cylinder realizes directional rotation and is convenient to judge the locking and unlocking states of the lock: and two opposite side walls of the lock cylinder fixing seat are respectively fixed with a positioning plate for limiting the rotation angle of the lock cylinder.

For the theftproof function of realizing the lock core, prevent that cellar for storing things well lid from being opened at will, what the theftproof lockhole sets up to the dysmorphism hole, the cooperation of pegging graft in the theftproof lockhole has and is used for driving lock core pivoted key.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the manhole cover lock is fixed with a manhole cover through a lock cylinder fixing seat, the top of the lock cylinder penetrates out of the manhole cover, the anti-theft lock hole is upward, the lock cylinder can be driven to rotate by inserting a key into the anti-theft lock hole, the lock cylinder rotates to drive the lock cylinder seat fixed to the bottom of the lock cylinder to rotate, and then the lock hook is driven to rotate so as to be locked or separated with a manhole ring; the manhole cover lock has a simple structure, is convenient to produce and process, and has a wide application range;

2. the lock core column is positioned and installed in the lock core fixing seat through the compression spring and can axially displace, and when the compression spring is in an extending state, the top end of the lock core column is flush with the end part of the anti-theft lock hole, so that the lock hole is kept to be sealed by the lock core column under the state that a key is not inserted, and the phenomenon that the anti-theft lock hole is blocked by impurities such as dust, silt and the like is prevented;

3. the theftproof lockhole adopts special-shaped hole structure for prevent that the well lid lock from being opened at will, only the key that the shape matches inserts and just can drive the lock core and rotate, realize the operation of the closure of well lid lock and opening, thereby improved the theftproof performance of cellar for storing things well lid lock.

Drawings

Fig. 1 is a schematic view of the overall structure of the manhole cover lock of embodiment 1.

Fig. 2 is an exploded view of the manhole cover lock of example 1.

Fig. 3 is a schematic sectional view of the manhole cover lock of embodiment 1.

Fig. 4 is a schematic sectional view showing the connection between the manhole cover lock and the manhole cover in embodiment 2.

In the figure, 1, a lock cylinder fixing seat; 11. positioning a plate; 2. a lock cylinder; 21. an anti-theft lock hole; 22. a second ring groove; 23. a second shaft clamp; 3. a lock cylinder seat; 31. a top plate; 311. a first through hole; 32. a base plate; 321. a second through hole; 33. a side plate; 4. a latch hook; 5. a lock cylinder; 51. a first ring groove; 52. shaft clamping I; 53. reducing the diameter and positioning the section; 6. a compression spring; 7. a wave-shaped elastic washer; 8. a key; 9. a well cover; 10. and (4) well circling.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Example 1

Referring to fig. 1 to 3, for the utility model discloses a cellar for storing things well lid lock, including lock core fixing base 1, the location is rotated on the lock core fixing base 1 and is connected with lock core 2, and 2 tops of lock core are equipped with theftproof lockhole 21, and 2 bottoms of lock core pass lock core fixing base 1 and fixedly connected with lock core seat 3, and 3 outer walls of lock core seat are fixed with latch hook 4. The anti-theft lock hole 21 is a special-shaped hole, and a key 8 for driving the lock cylinder 2 to rotate is inserted and matched in the anti-theft lock hole 21.

In order to realize the positioning and installation of the lock core 2 and prevent the lock core 2 from axially separating from the lock core fixing seat 1, a second ring groove 22 is arranged outside the lock core 2, and a second shaft clamp 23 is embedded in the second ring groove 22. 2 tops of lock core are passed lock core fixing base 1 and are rotated with lock core fixing base 1 by supreme down and link to each other, and axle card two 23 is located 1 tops of lock core fixing base for inject lock core 2, prevent that lock core 2 from breaking away from lock core fixing base 1, realize that the location between lock core 2 and the lock core fixing base 1 is rotated and is connected.

In order to realize that the lock hole is kept to be sealed by the lock cylinder 5 under the state that the key 8 is not inserted, impurities such as dust are prevented from entering the anti-theft lock hole 21, and the situation that the anti-theft lock hole 21 is blocked is caused: the anti-theft lock hole 21 is internally provided with a lock core column 5, and the lock core column 5 can open or shield the anti-theft lock hole 21 along the axial displacement thereof.

The lock cylinder seat 3 is configured to be a rectangular frame structure, and includes a top plate 31, a bottom plate 32 and two side plates 33 arranged oppositely, and the lock hook 4 is fixed on the outer side of one of the side plates 33 by bolts or welding. The top plate 31 is provided with a first through hole 311 for the top end of the lock core column 5 to pass through, the bottom plate 32 is provided with a second through hole 321 for the bottom end of the lock core column 5 to pass through, the outer side of the lock core column 5 is provided with a positioning convex part, and the outer diameter of the positioning convex part is larger than the apertures of the anti-theft lock hole 21 and the second through hole 321. The positioning convex part is set as a first shaft clamping part 52, and a first ring groove 51 for embedding the first shaft clamping part 52 is arranged on the outer side of the lock core column 5. The location convex part is located the position between roof 31 and the bottom plate 32, and the outside cover of lock core post 5 is equipped with compression spring 6, and 6 tops of compression spring are contradicted with location convex part diapire, the bottom is contradicted with bottom plate 32 roof. The theftproof lockhole 21 link up lock core 2, and 5 tops of lock core column stretch into the theftproof lockhole 21, and when compression spring 6 unstressed state, 5 tops of lock core column are flushed with the terminal surface of theftproof lockhole 21, and the theftproof lockhole 21 is in closed state for prevent rainwater, impurity etc. from getting into the theftproof lockhole 21.

For the displacement stroke of injecing lock core post 5, lock core post 5 bottom is provided with reducing locating section 53, and reducing locating section 53 laminating cup joints and is used for injecing 5 strokes of lock core post in second through-hole 321. When the top end of the reducing positioning section 53 is attached to the top wall of the bottom plate 32, the compression spring 6 is compressed, the anti-theft lock hole 21 is in a state of being completely inserted and matched by the key 8, and the key 8 can be rotated to drive the lock cylinder 2 to rotate.

In order to limit the rotation angle of the lock cylinder 2, realize the directional rotation of the lock cylinder and be convenient for judging the locking and unlocking states of the lockset: two opposite side walls of the lock cylinder fixing seat 1 are respectively fixed with a positioning plate 11 for limiting the rotation angle of the lock cylinder 2. The lock cylinder seat 3 of the rectangular frame structure rotates within the range of the two positioning plates 11, and the rotating range is 90 degrees. As shown in figure 1, the lock cylinder seat 3 can rotate anticlockwise, when the end face of the lock cylinder seat is abutted against the other positioning plate 11, the lock cylinder seat 3 finishes 90-degree steering, and the cellar well cover lock realizes the conversion of locking and unlocking states.

The end face of the bottom of the lock cylinder 2 is positioned below the lock cylinder fixing seat 1 and is welded and fixed with the top wall of the top plate 31 of the lock cylinder seat 3. Preferably, the aperture of the first through hole 311 of the top plate 31 is larger than the outer diameter of the lock cylinder column 5, the bottom end of the lock cylinder 2 is provided with a step which is jointed and sleeved in the first through hole 311, and the lock cylinder 2 is coaxially nested in the first through hole 311 and then welded, so that the fixation of the lock cylinder and the first through hole is realized. The aperture of the anti-theft lock hole in the middle of the lock core 2 is slightly larger than the outer diameter of the lock core column 5, and the top end of the lock core column 5 extends into the anti-theft lock hole to seal the lock hole.

In order to reduce the friction resistance between the lock cylinder 2 and the lock cylinder fixing seat 1 before rotation, a wave-shaped elastic gasket 7 is arranged between the lock cylinder fixing seat 1 and the lock cylinder seat 3. The wave-shaped elastic washer 7 is sleeved on the lock cylinder 2, so that a gap is reserved between the lock cylinder fixing seat 1 and the lock cylinder seat 3, and the lock cylinder 2 rotates more smoothly and labor-saving.

Example 2

Refer to fig. 4, have the cellar for storing things well lid of above-mentioned cellar for storing things well lid lock, including well lid 9 and walling crib 10, 1 welding of lock core fixing base or bolt fastening are at well lid 9 inner wall, it is fixed with well lid 9 that cellar for storing things well lid lock passes through lock core fixing base 1, well lid 9 is worn out at 2 tops of lock core, theftproof lockhole 21 up, insert theftproof lockhole 21 through key 8 and can drive lock core 2 and rotate, 2 rotation of lock core drive and 3 rotations of the fixed lock core seat in its bottom, and then driven latch hook 4 rotations, make it and walling crib 10 locking or break away from.

The utility model discloses a cellar for storing things well lid lock, lock core post 5 is in the lock core fixing base 1 of 6 location installations of compression spring, and it can follow axial displacement, and when compression spring 6 was in the extension state, the top of lock core post 5 flushed with theftproof lockhole 21 tip to the theftproof lockhole keeps being sealed by lock core post 5 under the state that does not insert key 8, is used for preventing impurity such as dust from getting into theftproof lockhole 21, causes theftproof lockhole 21 to be blockked up the emergence of the condition.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a cellar for storing things well lid lock which characterized in that: the anti-theft lock comprises a lock cylinder fixing seat, wherein a lock cylinder is positioned and rotationally connected to the lock cylinder fixing seat, an anti-theft lock hole is formed in the top of the lock cylinder, the bottom end of the lock cylinder penetrates through the lock cylinder fixing seat and is fixedly connected with a lock cylinder seat, and a lock hook is fixed on the outer wall of the lock cylinder seat;

the anti-theft lock hole is internally provided with a lock core column, and the lock core column can open or shield the anti-theft lock hole along the axial displacement of the lock core column.

2. The manhole cover lock of claim 1, wherein: the lock core column is arranged on the lock core seat, the lock core seat at least comprises a top plate and a bottom plate which are fixed with each other, a first through hole for the top end of the lock core column to pass through is formed in the top plate, a second through hole for the bottom end of the lock core column to pass through is formed in the bottom plate, a positioning convex part is arranged on the outer side of the lock core column and located between the top plate and the bottom plate, a compression spring is sleeved outside the lock core column, the top end of the compression spring is abutted against the bottom wall of the positioning convex part, and the bottom end of the compression spring is abutted against the top wall of the bottom plate;

the anti-theft lock hole penetrates through the lock cylinder, the top end of the lock cylinder column extends into the anti-theft lock hole, the outer diameter of the positioning convex part is larger than the apertures of the anti-theft lock hole and the second through hole, and when the compression spring is in an unstressed state, the top end of the lock cylinder column is flush with the end face of the anti-theft lock hole.

3. The manhole cover lock of claim 2, wherein: the positioning convex part is a first shaft clamp, and a first annular groove for embedding the first shaft clamp is formed in the outer side of the lock core column.

4. The manhole cover lock of claim 2, wherein: the bottom end of the lock core column is provided with a reducing positioning section, and the reducing positioning section is jointed and sleeved in the second through hole and used for limiting the stroke of the lock core column.

5. The manhole cover lock of claim 2, wherein: the lock cylinder seat is of a rectangular frame structure and comprises a top plate, a bottom plate and two opposite side plates, and the lock hook is fixed on the outer side of one of the side plates.

6. The manhole cover lock of claim 1, wherein: and a second annular groove is arranged outside the lock cylinder, a second shaft clamp is embedded in the second annular groove, and the lock cylinder is rotationally connected with the lock cylinder fixing seat in a positioning manner through the second shaft clamp.

7. The manhole cover lock of claim 6, wherein: and a wave-shaped elastic gasket is arranged between the lock cylinder fixing seat and the lock cylinder seat.

8. The manhole cover lock of claim 1, wherein: and two opposite side walls of the lock cylinder fixing seat are respectively fixed with a positioning plate for limiting the rotation angle of the lock cylinder.

9. The manhole cover lock of claim 1, wherein: the anti-theft lock hole is a special-shaped hole, and a key for driving the lock cylinder to rotate is inserted and matched in the anti-theft lock hole.

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