Anti-theft hand-held water meter well lid

Abstract

An anti-theft handheld water meter well lid comprises a well lid body, a locking device is arranged at the bottom of the well lid body and comprises a lock shell fixed to the well lid body in a penetrating mode, a lock cylinder is arranged in the lock shell, a key insertion hole of the lock cylinder is located in one side of the top of the well lid body, and the other end of the lock cylinder extends out of the bottom end face of the well lid body; a gear is arranged at the end, located on one side of the bottom of the well lid body, of the lock cylinder, a rack meshed with the gear is slidably arranged on the bottom side of the well lid body, a pin shaft is arranged at one end of the rack, and when the gear rotates, the other end of the pin shaft extends out of the circumferential edge of the well lid body or retracts to the bottom side of the well lid body. Compared with the prior art, the well lid has the advantages that the well lid is locked in a shaft, the well lid is prevented from being lost, then children are prevented from falling into the shaft to cause accidents, and a water supply device of the water supply well is protected.

Description

Technical Field

[0001] The utility model relates to a well cover, in particular to an anti-theft portable water meter well cover. Background Art

[0002] For the water supply wells in rural families in the western region, the water supply wells for integrated water and fertilizer irrigation, and the water supply wells in greening corridors, well covers are usually used to seal the water supply wells, protect the water supply devices in the water supply wells from being damaged, and prevent children from accidentally falling into the water supply wells and causing safety accidents. After the existing well cover is covered on the water supply well, it is relatively easy to remove, easy to be lost, unable to play a role in protecting the water supply device, and after the well cover is lost, safety accidents are likely to occur. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides an anti-theft portable water meter well cover.

[0004] An anti-theft portable water meter well cover according to the utility model includes a well cover body. A locking device is arranged at the bottom of the well cover body. The locking device includes a lock shell fixedly penetrated and installed on the well cover body. A lock core is arranged in the lock shell. The key insertion hole of the lock core is located on one side of the top of the well cover body, and the other end of the lock core extends out of the bottom end face of the well cover body. A gear is arranged at the end of the lock core on one side of the bottom of the well cover body. A rack meshing with the gear is slidably arranged on the bottom side of the well cover body. A pin shaft is arranged at one end of the rack. When the gear rotates, the other end of the pin shaft extends out of the peripheral edge of the well cover body or contracts to the bottom side of the well cover body.

[0005] Compared with the prior art, the beneficial effect of the utility model is that the well cover is locked in the wellbore to prevent the well cover from being lost, thereby preventing children from falling into the wellbore and causing accidents, and protecting the water supply device of the water supply well.

[0006] Further, a kidney-shaped hole is formed in the middle of the gear, and the cross-sectional shape of the end of the lock core matches the kidney-shaped hole of the gear and is inserted into the kidney-shaped hole of the gear.

[0007] Compared with the prior art, the beneficial effect of the utility model is that after the key is inserted into the lock core, rotating the lock core can drive the gear to rotate.

[0008] Further, a bottom plate is arranged on the bottom surface of the well cover body. Limiting protrusions for limiting the moving range of the rack are arranged on the peripheral edges of the bottom surface of the bottom plate. The back of the rack is slidably arranged on one side of the inner wall of the limiting protrusion. A cover plate is arranged on the limiting protrusion. A connecting structure is arranged at one end of the rack. A notch is formed in the limiting protrusion. The connecting structure is slidably penetrated through the notch, and the outer end of the connecting structure outside the box body is detachably connected to the pin shaft.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: The rack is limited at the bottom of the manhole cover body, and the gear and the rack are protected.

[0010] Further, an insertion hole is provided at the outer end of the connection structure. The pin shaft is integrally L-shaped, and the bent portion of the pin shaft is inserted into the insertion hole of the connection structure. The end of the bent portion of the pin shaft extends out of the insertion hole and is provided with a split pin or a nut.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The detachable connection between the pin shaft and the connection structure is realized, which is convenient for replacement.

[0012] Further, an installation platform is provided at the bottom of the manhole cover body. A semi-circular ring is detachably provided on the top of the installation platform. The pin shaft is inserted into the limit hole formed by the installation platform and the semi-circular ring.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By means of the installation ring, it is possible to avoid installing a nut or a split pin between the pin shaft and the manhole cover body, thus facilitating the assembly of the manhole cover.

[0014] Further, a rack is engaged on both sides of the gear, and pin shafts are provided at the ends of the two racks.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing two pin shafts, the locking strength between the manhole cover and the wellbore is increased.

[0016] Further, an avoidance groove is provided on the top surface of the manhole cover body. A handle is provided at the opening of the avoidance groove, and a groove convenient for hand holding and cooperating with fingers is provided on the inner side surface of the handle.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: It is convenient to lift the manhole cover body.

[0018] Further, a protective cover is provided at the opening of the installation hole for installing a lock on the top surface of the manhole cover body.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: The lock is protected to prevent dust from entering and damaging the lock core.

[0020] Further, an identification area for setting an identification is provided on the manhole cover body.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: According to the specific use of the manhole cover, an identification is set in the identification area.

[0022] Further, reinforcing ribs are provided at the bottom of the manhole cover body, and rope tying holes are formed on the reinforcing ribs.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows: The water pipe in the wellbore can be tied with a rope, and the rope is tied to the rope tying port. After removing the well cover, the rope can be lifted to facilitate the removal and use of the water pipe.

[0024] The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given and described in detail in conjunction with the accompanying drawings as follows. Brief Description of the Drawings

[0025] Figure 1 It is a bottom-side three-dimensional schematic view of an embodiment of an anti-theft portable water meter well cover of the present utility model;

[0026] Figure 2 It is a top-side three-dimensional schematic view of an embodiment of an anti-theft portable water meter well cover of the present utility model;

[0027] Figure 3 It is a bottom view of an embodiment of an anti-theft portable water meter well cover of the present utility model;

[0028] Figure 4 It is a top view of an embodiment of an anti-theft portable water meter well cover of the present utility model;

[0029] Figure 5 It is a bottom-side three-dimensional schematic view of an embodiment of an anti-theft portable water meter well cover of the present utility model without the cover plate;

[0030] Figure 6 It is a top-side three-dimensional schematic view of an embodiment of an anti-theft portable water meter well cover of the present utility model without the protection plate;

[0031] Figure 7 It is a bottom view of an embodiment of an anti-theft portable water meter well cover of the present utility model without the cover plate;

[0032] Figure 8 It is a top view of an embodiment of an anti-theft portable water meter well cover of the present utility model without the protection plate;

[0033] Figure 9 is Figure 5 an enlarged schematic view of part A in

[0034]

Reference Signs

[0035] 1 - Well cover body, 101 - Handle, 102 - Avoidance groove, 103 - Protection cover, 104 - Identification area, 105 - Reinforcing rib, 106 - Rope tying port, 107 - Installation platform;

[0036] 2 - Locking device, 201 - Cover plate, 202 - Pin shaft, 203 - Semi - circular ring, 204 - Connection structure, 205 - Rack, 206 - Gear, 207 - Lock core, 208 - Bottom plate, 209 - Limit projection, 210 - Lock housing. Detailed implementation manner

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] An embodiment of a theft - proof portable water meter well cover of the present invention is as Figures 1 to 9 shown, and includes a well cover body 1 and a locking device 2 provided at the bottom of the well cover body 1. The locking device 2 includes a lock fixedly arranged through the well cover body 1. The lock includes a lock housing 210 fixedly arranged through the well cover body 1. A lock core 207 is arranged inside the lock housing 210. The key insertion hole of the lock core 207 is located on one side of the top of the well cover body 1. The other end of the lock core 207 extends out of the bottom end face of the well cover body 1. Inserting and rotating the key into the lock core 207 can drive the lock core 207 to rotate. Other structures of the lock are prior art and will not be described in detail here.

[0039] A gear 206 is arranged at the end of the lock core 207 on one side of the bottom of the well cover body 1. The gear 206 is circumferentially limited on the lock core 207. The rotation of the lock core 207 can drive the gear 206 to rotate. The rotation plane of the gear 206 is parallel to the well cover body 1. A waist - shaped hole is opened in the middle of the gear 206. The cross - sectional shape of the end of the lock core 207 matches the waist - shaped hole of the gear 206. When the lock core 207 rotates, it can drive the gear 206 to rotate.

[0040] A rack 205 is slidably arranged at the bottom of the well cover body 1. The sliding plane where the rack 205 is located is parallel to the bottom surface of the well cover body 1. The rack 205 meshes with the gear 206. When the gear 206 rotates counter - clockwise or clockwise, it drives the rack 205 to reciprocate linearly at the bottom of the well cover body 1.

[0041] One end of the rack 205 is detachably connected to the pin shaft 202. The movement of the rack 205 can drive the pin shaft 202 to reciprocate linearly. During the reciprocating linear movement, the other end of the pin shaft 202 can extend out of the circumferential edge of the well cover body 1 and retract to the bottom side of the well cover body 1. Cover the well cover on the wellbore, rotate the lock core 207 to make the pin shaft 202 extend out of the edge of the well cover and insert it into the pin hole on the inner wall of the wellbore, lock the well cover in the wellbore to prevent the well cover from being lost, thereby preventing children from falling into the wellbore and causing accidents, and protecting the water supply device of the water supply well. In other embodiments, the rack 205 can also be integrally provided with the pin shaft 202.

[0042] To ensure the stable operation of the gear 206 and the rack 205, a bottom plate 208 is provided on the bottom surface of the well cover body 1. In this embodiment, the bottom plate 208 is detachably provided on the well cover body 1 by screws. Limiting protrusions 209 are provided on the circumferential edge of the bottom surface of the bottom plate 208. The limiting protrusions 209 and the bottom plate 208 form a box-shaped body. The back of the rack 205 is slidably arranged on one side of the inner wall of the limiting protrusion 209 to prevent the rack 205 and the gear 206 from disengaging in the radial direction.

[0043] The movement range of the rack 205 is limited by the limiting protrusion 209. The limiting protrusion 209 has a blocking effect on the rack 205 to prevent the rack 205 from disengaging in the moving direction. A cover plate 201 is provided on the limiting protrusion 209. The cover plate 201 is installed on the limiting protrusion 209 by screws to prevent the rack 205 and the gear 206 from disengaging in the axial direction and prevent foreign objects from entering the box body and damaging the gear 206 and the rack 205.

[0044] A connecting structure 204 is provided at one end of the rack 205. A notch is formed on the limiting protrusion 209. The connecting structure 204 slidably passes through the notch. The outer end of the connecting structure 204 located outside the box body is detachably connected to the pin shaft 202. In this embodiment, an insertion hole is provided at the outer end of the connecting structure 204. The pin shaft 202 is integrally L-shaped. The bent part of the pin shaft 202 is inserted and passes through the insertion hole of the connecting structure 204, and is inserted into the pin hole at the end of the bent part of the pin shaft 202 extending out of the insertion hole by an opening pin to prevent the pin shaft 202 from disengaging from the connecting structure 204. In this embodiment, a plurality of insertion holes are distributed on the connecting structure 204 along the moving direction of the pin shaft 202, which is convenient to adjust the insertion position of the pin shaft 202 according to needs, so as to adjust the extending length of the pin shaft 202 to adapt to more specifications of wellbores. In other embodiments, threads can be provided at the end of the bent part of the pin shaft 202, and the pin shaft 202 is fixedly connected to the connecting structure 204 by a nut.

[0045] To prevent the pin shaft 202 from detaching from the connection structure 204, the pin shaft 202 can also be limited on the manhole cover body 1, so that the pin shaft 202 only moves radially along the bottom of the manhole cover body 1, thereby restricting the end of the pin shaft 202 within the insertion hole of the connection structure 204. Specifically: an installation platform 107 is provided at the bottom of the manhole cover body 1, and a semi-circular ring 203 is detachably arranged on the top of the installation platform 107. The pin shaft 202 is inserted into the limiting hole formed by the installation platform 107 and the semi-circular ring 203 to prevent the pin shaft 202 from moving in other directions except the moving direction. At this time, if the bent portion of the pin shaft 202 is inserted into the insertion hole of the connection structure 204, no nut or split pin is required to ensure reliable connection between the pin shaft 202 and the connection structure 204. Since the installation space between the pin shaft 202 and the manhole cover body 1 is small, by means of the installation ring 203, it is possible to avoid installing a nut or split pin between the pin shaft 202 and the manhole cover body 1, thus facilitating the assembly of the manhole cover. In this embodiment, in order to ensure the stable sliding of the pin shaft 202, a plurality of installation platforms 107 and semi-circular rings 203 are arranged in the sliding direction of the pin shaft 202 to provide multiple limiting points; both ends of the semi-circular ring 203 are installed on both sides of the top of the installation platform 107 by screws.

[0046] In this embodiment, in order to firmly limit the manhole cover in the wellbore, a rack 205 is engaged on both sides of the gear 206. When the gear 206 rotates, the two racks 205 move in opposite directions. The ends of the two racks 205 are both connected to the pin shaft 202, and the moving directions of the pin shaft 202 are opposite, so that the two pin shafts 202 are respectively inserted into the corresponding pin holes on the inner wall of the wellbore, strengthening the locking strength between the manhole cover and the wellbore. The rack 205, the pin shaft 202, their matching structures, and their matching structures with the manhole cover body 1 are symmetrically arranged and will not be elaborated here. To avoid reducing the overall strength of the manhole cover by setting the installation hole of the lock in the middle position of the manhole cover, the lock is offset on the manhole cover body 1. Therefore, when two pin shafts 202 are provided, the lengths of the two pin shafts 202 are different. In addition, the rack 205, the pin shaft 202, their matching structures, and their matching structures with the manhole cover body 1 are all the same and symmetric.

[0047] Anti-slip blocks are distributed on the top surface of the manhole cover body 1, and an avoidance groove 102 is provided. A handle 101 is arranged at the opening of the avoidance groove 102. The handle 101 straddles the opening of the avoidance groove 102, and the back of the handle is not higher than the avoidance groove 102 to ensure the overall flatness of the manhole cover. The inner side of the handle 101 is provided with a groove that is convenient for holding by hand and cooperating with the fingers.

[0048] A protective cover 103 is provided at the opening of the installation hole for installing a lock on the manhole cover body 1. The protective cover 103 is inserted and covered at the opening of the installation hole to prevent dust and other sundries from falling into the lock hole and causing damage to the lock. One end of the protective cover 103 is circular and matches the installation hole, and the other end is connected to the manhole cover body 1. After uncovering the protective cover 103, keep the anti-slip cover 103 connected to the manhole cover body 1, and then insert the key into the lock to lock or unlock it.

[0049] A marking area 104 for setting marks is provided on the manhole cover body 1.

[0050] Reinforcing ribs 105 are provided at the bottom of the manhole cover body 1, and a rope tying opening 106 is formed on the reinforcing ribs 105. A rope can be tied to the water pipe in the wellbore and the rope is tied to the rope tying opening 106. After removing the manhole cover, the rope can be lifted to facilitate the removal and use of the water pipe.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A theft-proof portable water meter well cover, comprising a well cover body, characterized in that: A locking device is provided at the bottom of the manhole cover body. The locking device includes a lock shell fixedly penetrated on the manhole cover body. A lock core is arranged in the lock shell. The key insertion hole of the lock core is located on one side of the top of the manhole cover body, and the other end of the lock core extends out of the bottom end face of the manhole cover body; a gear is arranged at the end of the lock core on one side of the bottom of the manhole cover body. A rack meshing with the gear is slidably arranged on the bottom side of the manhole cover body. A pin shaft is arranged at one end of the rack. When the gear rotates, the other end of the pin shaft extends out of the circumferential edge of the manhole cover body or contracts to the bottom side of the manhole cover body.

2. The anti-theft portable water meter well cover according to claim 1, characterized in that: A kidney-shaped hole is formed in the middle of the gear, and the cross-sectional shape of the end of the lock core matches the kidney-shaped hole of the gear and is inserted into the kidney-shaped hole of the gear.

3. A theft-proof portable water meter well cover according to claim 1, characterized in that: A bottom plate is arranged on the bottom surface of the manhole cover body. Limiting protrusions for restricting the moving range of the rack are arranged on the four peripheral edges of the bottom surface of the bottom plate. The back of the rack is slidably arranged on one side of the inner wall of the limiting protrusion, and a cover plate is arranged on the limiting protrusion; a connecting structure is arranged at one end of the rack. A notch is formed in the limiting protrusion, and the connecting structure is slidably penetrated in the notch. The outer end of the connecting structure outside the box body is detachably connected to the pin shaft.

4. The anti-theft portable water meter well cover according to claim 3, characterized in that: An insertion hole is arranged at the outer end of the connecting structure. The pin shaft is integrally L-shaped. The bent part of the pin shaft is penetrated in the insertion hole of the connecting structure, and the end of the bent part of the pin shaft extends out of the insertion hole and is provided with an opening pin or a nut.

5. The anti-theft portable water meter well cover according to claim 3, characterized in that: An installation platform is arranged at the bottom of the manhole cover body. A semi-circular ring is detachably arranged on the top of the installation platform. The pin shaft is penetrated in the limiting hole formed by the installation platform and the semi-circular ring.

6. The anti-theft portable water meter well cover according to claim 1, characterized in that: A rack is meshed on both sides of the gear, and pin shafts are arranged at the ends of both racks.

7. The anti-theft portable water meter well cover according to claim 1, characterized in that: An avoidance groove is arranged on the top surface of the manhole cover body. A handle is arranged at the opening of the avoidance groove. Grooves convenient for hand holding and cooperating with fingers are arranged on the inner side surface of the handle.

8. The anti-theft portable water meter well cover according to claim 1, characterized in that: A protective cover is arranged at the opening of the installation hole for installing the lock on the top surface of the manhole cover body.

9. The anti-theft portable water meter well cover according to claim 1, wherein: A marking area for setting marks is arranged on the manhole cover body.

10. A theft-proof portable water meter well cover according to claim 1, characterized in that: Reinforcing ribs are arranged at the bottom of the manhole cover body, and rope tying holes are formed in the reinforcing ribs.

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