CN215715526U - Protective airtight cover plate for blanking port of comprehensive pipe rack - Google Patents
Protective airtight cover plate for blanking port of comprehensive pipe rack Download PDFInfo
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- CN215715526U CN215715526U CN202121734989.0U CN202121734989U CN215715526U CN 215715526 U CN215715526 U CN 215715526U CN 202121734989 U CN202121734989 U CN 202121734989U CN 215715526 U CN215715526 U CN 215715526U
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- well frame
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Abstract
The utility model provides a protective closed cover plate for a blanking port of a comprehensive pipe gallery, which comprises: the well frame is arranged at the discharge hole of the comprehensive pipe gallery, the well frame is provided with an inner side wall surface facing the inside of the comprehensive pipe gallery, and a lock hole is formed in the inner side wall surface of the well frame; the cover plate covers the well frame; the hand wheel mechanism is arranged on the cover plate; the transmission rod is in transmission connection with the hand wheel mechanism, so that the transmission rod can reciprocate along the axial direction of the transmission rod under the driving of the hand wheel mechanism; the locking seats are fixedly arranged on the cover plate, each locking hole corresponds to one locking seat, sliding holes are formed in the locking seats, and the sliding holes are arranged corresponding to the locking holes; and one end of the locking mechanism is hinged with the transmission rod, so that the lock head is inserted into the lock hole or pulled out of the lock hole. The protective closed cover plate provided by the utility model can complete the turning opening or closing, and the locking sealing or unlocking actions of the protective closed cover plate.
Description
Technical Field
The utility model relates to the technical field of comprehensive pipe rack protection, in particular to a protective closed cover plate for a discharge opening of a comprehensive pipe rack.
Background
The urban underground comprehensive pipe gallery is a municipal utility facility which is constructed underground in a city and used for laying municipal utility pipelines and implements unified planning, design, construction and maintenance. The city underground comprehensive pipe gallery is a structure and an accessory facility which are built in the city underground and used for containing two or more types of engineering pipelines in pipelines such as water supply, drainage, heating power, communication and the like. The safe and effective operation of the municipal pipeline inside the underground comprehensive pipe gallery is very important for guaranteeing the normal operation of cities, and is known as the 'life line' of modern city operation.
As city "life line" engineering, city utility tunnel engineering is the important infrastructure of guarantee city operation, and it is effective operation direct influence the operation in whole city whether, and in the easy oral area entering pipe gallery of shock wave during the war, the inside pipeline of pipe gallery easily damaged under the shock wave effect to threaten the normal operating in city, weaken city function and war potentiality. Consequently, carry out technical research to city utility tunnel protection technology, it is reliable to develop the safeguard measure, and is rational in infrastructure, and the protective apparatus that the function is perfect uses and protects very meaningful to city utility tunnel, also is of value to the management level that improves city utility tunnel.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a protective airtight cover plate for a blanking port of a utility tunnel, which can complete the actions of turning on or off the protective airtight cover plate, locking, sealing or unlocking, has a good sealing effect of a locking design, and ensures that protective equipment can meet the requirements of sealing and anti-toxicity performance in wartime and flood prevention function for preventing urban flood from flowing backward in stormy rainy days.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a utility tunnel feed opening protection closing cover plate, includes: the well frame is arranged at the discharge hole of the comprehensive pipe gallery, the well frame is provided with an inner side wall surface facing the inside of the comprehensive pipe gallery, and a lock hole is formed in the inner side wall surface of the well frame; the cover plate covers the well frame; the hand wheel mechanism is arranged on the cover plate; the transmission rod is in transmission connection with the hand wheel mechanism, so that the transmission rod can reciprocate along the axial direction of the transmission rod under the driving of the hand wheel mechanism; the locking seats are fixedly arranged on the cover plate, each locking hole corresponds to one locking seat, sliding holes are formed in the locking seats, and the sliding holes are arranged corresponding to the locking holes; and one end of the locking mechanism is hinged with the transmission rod, the other end of the locking mechanism is provided with a lock head in sliding fit with the lock hole, and the lock head is driven to slide in the sliding hole by rotating the hand wheel mechanism so as to be inserted into or pulled out of the lock hole.
Further, in foretell utility tunnel feed opening protection is in sealed apron, blocked mechanical system includes the rocking arm as the crank, as the connecting rod long connecting rod and short connecting rod, as the slider the tapered end, wherein, the middle part of rocking arm through the pivot rotatable with the apron links to each other, follows the middle part of rocking arm extends respectively to the different directions and forms first exhibition arm and second exhibition arm, the one end of long connecting rod with first exhibition arm is articulated, the other end with the tapered end is articulated, the one end of short connecting rod with second exhibition arm is articulated, the other end with the transfer line is articulated.
Further, in foretell utility tunnel feed opening protection is airtight apron, still include: the hinge seats are fixedly arranged on the transmission rod; a plurality of lock holes are formed in two opposite inner side wall surfaces of the well frame; the locking mechanisms are in two groups, the two locking mechanisms in each group are symmetrically arranged by taking the transmission rod as a symmetry axis, and each locking mechanism corresponds to one locking hole; each group of the locking mechanisms corresponds to one hinge seat, and the transmission rod is hinged with the other end of the short connecting rod in two locking mechanisms in each group through the hinge seat.
Further, in the protective closed cover plate for the blanking opening of the comprehensive pipe rack, the included angle between the axis of the first spreading arm and the axis of the second spreading arm ranges from 110 degrees to 130 degrees; and an included angle between the axis of the sliding hole and the axis of the transmission rod is 90 degrees.
Further, in the protective closed cover plate for the discharge opening of the comprehensive pipe gallery, the cover plate is rectangular plate-shaped, and 3 groups of locking mechanisms are distributed on the cover plate at equal intervals; and 3 groups of the locking mechanisms are respectively positioned at the two ends and the middle position of the transmission rod.
Further, in foretell utility tunnel feed opening protection is airtight apron, still include: the transmission rod penetrates through the sliding grooves in sequence, and the transmission rod is slidable in the sliding grooves.
Further, in foretell utility tunnel feed opening protection closing cover, hand wheel mechanism includes: the shell is fixedly arranged on the inner side surface of the cover plate; the two hand wheels are respectively arranged on the inner side and the outer side of the cover plate; the driving rod is rotatably arranged on the shell, and two ends of the driving rod are fixedly connected with one hand wheel respectively; the first gear is sleeved on the driving rod and is positioned in the shell; and the second gear is fixedly connected with the transmission rod and is meshed with the first gear.
Further, in the protective closed cover plate for the discharge opening of the comprehensive pipe rack, the first gear is a straight gear, and the second gear is a bar gear; or the first gear is a helical gear, and the second gear is a worm.
Furthermore, in the protective closed cover plate for the blanking port of the comprehensive pipe gallery, the well frame is provided with an upper surface facing to the outside, the upper surface is vertical to the surface of the inner side wall, and a plurality of positioning holes are formed in the two opposite upper surfaces; a plurality of positioning pins are fixedly arranged on two side surfaces of the cover plate corresponding to the upper surface provided with the positioning holes, each positioning pin corresponds to one positioning hole, and the positioning pins are inserted into the positioning holes when the cover plate is in a locking state; and the axis of the lock head is perpendicular to the axis of the positioning pin.
Further, in foretell utility tunnel feed opening protection is airtight apron, still include: the sealing rubber strip seat is fixedly arranged on the upper surface along the circumferential direction of the well frame, and is closer to the center of the feed opening than the positioning hole; the sealing rubber strip is arranged in the sealing rubber strip seat; the sealing rubber strip protrudes out of the sealing rubber strip seat, and when the cover plate and the well frame are in a closed state, the cover plate is abutted against the sealing rubber strip, so that the sealing rubber strip is deformed; the anchor hooks are fixedly arranged on the outer side wall surface of the well frame and are used for fixing the well frame at the feed opening.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects: the protective closed cover plate provided by the utility model can finish the turning opening or closing, locking sealing or unlocking actions of the protective closed cover plate, has good locking design and sealing effect, and ensures that protective equipment meets the requirements of closed anti-virus performance in wartime and the flood control function of preventing urban waterlogging from flowing backwards in severe rainy days at ordinary times. The cover plate can be opened and closed quickly by manually driving the hand wheel mechanism.
Drawings
FIG. 1 shows a schematic structural diagram of a cover plate of an embodiment of the present invention;
FIG. 2 shows a schematic of the structure of a well casing of one embodiment of the present invention;
FIG. 3 is a partial schematic view of a cover plate according to an embodiment of the present invention;
FIG. 4 shows a schematic structural view of a protective containment cover sheet of one embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view of portion A of FIG. 4;
FIG. 6 is an enlarged partial view of portion B of FIG. 5;
fig. 7 shows a schematic construction of the swivel arm of an embodiment of the utility model.
The symbols in the figures are as follows:
10 well frames, 11 inner side wall surfaces, 111 lock holes, 12 upper surfaces, 121 positioning holes, 13 anchor hooks, 20 cover plates, 21 sliding seats, 22 positioning pins, 23 locking seats, 231 sliding holes, 24 lifting rings, 30 hand wheel mechanisms, 31 shells, 32 hand wheels, 33 driving rods, 40 locking mechanisms, 42 long connecting rods, 43 short connecting rods, 44 locking heads, 45 rotating arms, 451 first spreading arms, 452 second spreading arms, 51 sealant strip seats, 52 sealant strips, 501 pressure bearing plates, 502 inner baffles and 60 driving rods.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention and advantageous effects thereof will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, one embodiment of the present invention provides a protective containment cover plate for a utility tunnel feed opening.
The method comprises the following steps: the well frame 10, the cover plate 20, the hand wheel mechanism 30, the transmission rod 60, the locking seats 23 and the locking mechanism 40, wherein the cover plate 20 is rectangular, the sealing structure is arranged around the cover plate 20, a plurality of pairs of locking seats 23 are arranged at two opposite edges of the cover plate 20, the transmission rod 60 is arranged in the middle of the cover plate 20, three groups of locking mechanisms 40 which are symmetrically arranged are arranged at two sides of the transmission rod 60, a lock head 44 of each locking mechanism 40 is inserted into each locking seat 23, and the hand wheel mechanism 30 is linked with the locking mechanisms 40 through the transmission rod 60, so that the lock head 44 can be inserted into or pulled out of a lock hole 111 arranged on the well frame 10 in a front-and-back movement mode on the locking seats 23, and the locking or unlocking of the cover plate 20 is realized.
Specifically, as shown in fig. 3 and 4, the well frame 10 is disposed at a utility tunnel feed opening, such as an emergency escape opening of a city utility tunnel, an emergency inspection opening of a city utility tunnel, etc., and the well frame 10 is fixed to the utility tunnel feed opening by fixing the connection anchor hooks 13 on the outer side wall surface of the well frame 10 and embedding the anchor hooks 13 in concrete at the pouring stage of the utility tunnel feed opening. The well frame 10 has an inner side wall surface 11 facing into the utility tunnel and has an upper surface 12 facing outwards, the upper surface 12 being perpendicular to the inner side wall surface 11, i.e. the inner side wall surface 11 is arranged in the passageway of the utility tunnel, the upper surface 12 is arranged outside the utility tunnel, a lock hole 111 is provided on the inner side wall surface 11 of the well frame 10 for locking of the cover plate 20. The cover plate 20 covers the well frame 10, a hanging ring 24 for lifting the cover plate 20 is arranged on one side face, facing the outside, of the cover plate 20, the cover plate 20 is matched with the well frame 10, and the cover plate 20 is located on the well frame 10 to seal a feed opening of the comprehensive pipe gallery in a locking state. The locking seat 23 is fixedly arranged on the cover plate 20, each locking hole 111 corresponds to one locking seat 23, a sliding hole 231 is arranged on each locking seat 23, the sliding hole 231 corresponds to the locking hole 111, the hand wheel mechanism 30 is arranged on the cover plate 20, the transmission rod 60 is in transmission connection with the hand wheel mechanism 30, the transmission rod 60 is driven by the hand wheel mechanism 30 to reciprocate along the axial direction of the transmission rod 60, one end of the locking mechanism 40 is hinged with the transmission rod 60, the other end of the locking mechanism is provided with a locking head 44 in sliding fit with the locking hole 111, the locking head 44 in the locking machine head is driven to slide in the sliding hole 231 by rotating the hand wheel mechanism 30, and the locking head 44 is inserted into the locking hole 111 or pulled out of the locking hole 111, so that the locking or unlocking of the well frame 10 of the cover plate 20 is realized.
In detail, the locking mechanism 40 includes a rotating arm 45, a long link 42, a short link 43, and a locking head 44, wherein the middle part of the rotating arm 45 is rotatably connected to the cover plate 20 through a rotating shaft, so that the rotating arm 45 can rotate around the rotating shaft relative to the cover plate 20, the rotating shaft is vertically connected to the cover plate 20, the middle part of the rotating arm 45 extends in different directions to form a first spreading arm 451 and a second spreading arm 452, respectively, so that the first spreading arm 451 and the second spreading arm 452 can rotate relative to the cover plate 20 around the axis of the rotating shaft, and the rotating arm 45 serves as a crank of the locking mechanism 40; when the hand wheel mechanism 30 drives the transmission rod 60 to move, the short connecting rod 43 drives the short connecting rod 43 as the connecting rod to move, the short connecting rod 43 drives the rotating arm 45 to rotate, and then the rotating arm 45, the long connecting rod 42 and the lock head 44 are linked to enable the lock head 44 to slide back and forth in the sliding hole 231, the lock head 44 is inserted into the lock hole 111 to lock the cover plate 20 and the well frame 10, or the lock head 44 is pulled out of the lock hole 111 to unlock the cover plate 20 and the well frame 10. The long link 42 is longer than the short link 43.
Further, as shown in fig. 1, the protective airtight cover plate further includes: the hinge seats are fixedly arranged on the transmission rod 60; two opposite inner side wall surfaces 11 of the well frame 10 are respectively provided with a plurality of lock holes 111; the locking mechanisms 40 are in two groups, two locking mechanisms 40 in each group are symmetrically arranged by taking the transmission rod 60 as a symmetry axis, each locking mechanism 40 corresponds to one locking hole 111, the locking mechanisms 40 and the locking holes 111 are arranged in pairs, and the locking heads 44 connected with the long connecting rods 42 in the two locking mechanisms 40 in each group are simultaneously inserted into the locking holes 111 arranged on two opposite inner side surfaces of the well frame 10, so that the cover plate 20 and the well frame 10 are simultaneously locked in two opposite directions, and the protective sealed cover plate has strong impact resistance, so that the protective sealed cover plate is prevented from being separated from the well frame 10 when being subjected to large pressure or explosion shock waves in wartime, and people or equipment in a city comprehensive pipe gallery are damaged. Wherein, each group of the locking mechanisms 40 corresponds to one hinge seat, the transmission rod 60 is hinged with the other end of the short connecting rod 43 of the two locking mechanisms 40 in each group of the locking mechanisms 40 through the hinge seat, and the transmission rod 60 can be conveniently hinged with the short connecting rod 43 through the hinge seat.
In a specific embodiment, as shown in fig. 7, an included angle between an axis of the first arm extension 451 and an axis of the second arm extension 452 is in a range of 110 to 130 degrees, for example, an included angle between an axis of the first arm extension 451 and an axis of the second arm extension 452 is 110 degrees, 115 degrees, 120 degrees, 125 degrees or 130 degrees, and preferably, an included angle between an axis of the first arm extension 451 and an axis of the second arm extension 452 is 120 degrees, so that two locking mechanisms 40 are symmetrically disposed on two sides of the transmission rod 60, the overall structure is more compact, and an included angle between an axis of the sliding hole 231 and an axis of the transmission rod 60 is 90 degrees, so that the cover plate 20 and the well frame 10 are locked in two opposite directions at the same time, and the protective airtight cover plate has a stronger impact resistance.
In one embodiment, as shown in fig. 1, the cover plate 20 has a rectangular plate shape, 3 groups of latch mechanisms 40 are distributed on the cover plate 20 at equal intervals, and 3 groups of latch mechanisms 40 are respectively located at both ends and in the middle of the transmission rod 60.
Further, as shown in fig. 1 and 3, the utility tunnel feed opening protection airtight cover plate further comprises: the sliding seats 21 are fixedly connected to the cover plate 20, sliding grooves are formed in the sliding seats 21, the transmission rod 60 sequentially penetrates through the sliding grooves, the transmission rod 60 can slide in the sliding grooves, stability of the transmission rod 60 in the sliding process is guaranteed, support is provided for the transmission rod 60 in the radial direction of the transmission rod 60, and bending deformation of the transmission rod 60 when the transmission rod 60 is stressed in the axial direction due to overlong length is avoided.
Further, the hand wheel mechanism 30 includes: a shell 31, two hand wheels 32, a driving rod 33, a first gear and a second gear, wherein the shell 31 is fixedly arranged on the inner side surface of the cover plate 20, the two hand wheels 32 are respectively arranged on the inner side and the outer side of the cover plate 20, so that the locking and unlocking of the cover plate 20 can be controlled at both the inner and outer sides of the cover plate 20, the driving rod 33 is rotatably provided on the housing 31, both ends of the driving rod 33 penetrate through the housing 31 and the cover plate 20, and both ends of the driving rod 33 are respectively and fixedly connected with a hand wheel 32, the shell 31 mainly provides supporting force and protection for the operation of the whole hand wheel mechanism 30, the first gear is sleeved on the driving rod 33 and positioned in the shell 31, the second gear is fixedly connected with the driving rod 60 and is meshed with the first gear, by rotating the hand wheel 32, the driving rod 33 drives the first gear to rotate, and the first gear is engaged with the second gear to drive the second gear to move, so that the transmission rod 60 is moved.
Specifically, the first gear is a straight gear, and the second gear is a bar gear; or the first gear is a helical gear and the second gear is a worm.
Further, as shown in fig. 5, the two opposite upper surfaces 12 are provided with a plurality of positioning holes 121; a plurality of positioning pins 22 are fixedly arranged on two side surfaces of the cover plate 20 corresponding to the upper surface 12 provided with the positioning holes 121, each positioning pin 22 corresponds to one positioning hole 121, when the cover plate 20 is in a locking state, the positioning pins 22 are inserted into the positioning holes 121, so that the cover plate 20 is limited to move along the axial direction of the locking head 44, the axis of the locking head 44 is perpendicular to the axis of the positioning pins 22, the movement of the cover plate 20 relative to the well frame 10 is limited from two directions, and the cover plate 20 and the well frame 10 are completely locked by the positioning pins 22 and the locking head 44.
As shown in fig. 6, the protective airtight cover plate further includes: the sealing rubber strip seat 51 and the sealing rubber strip 52 are fixedly arranged on the upper surface 12 of the cover plate 20 along the circumferential direction of the cover plate 20, compared with the positioning hole 121, the sealing rubber strip seat 51 is closer to the center of the feed opening, and the sealing rubber strip 52 is arranged in the sealing rubber strip seat 51; when the cover plate 20 and the well frame 10 are in a closed state, the cover plate 20 abuts against the sealing rubber strip 52, so that the sealing rubber strip 52 deforms, the sealing of the cover plate 20 and the well frame 10 is realized, and the requirement on the anti-virus sealing performance is met.
Specifically, as shown in fig. 5, the pressure-bearing plate 501 and the inner baffle plate 502, which are arranged in parallel, define the sealant strip seat 51, and threaded holes are formed in the pressure-bearing plate 501, the inner baffle plate 502 and the upper surface 12 of the well frame 10, so that the sealant strip seat 51 is fixed on the well frame 10 by bolts.
Specifically, as shown in fig. 4, the cover plate 20 includes: the I-steel of outside panel, inside panel connection between inside panel and outside panel makes apron 20 inside be the cavity state, and the I-steel has improved apron 20 in the ascending compressive capacity of vertical side, under the prerequisite that makes the compressive strength who guarantees apron 20, alleviates apron 20's whole weight.
The utility model has the following beneficial effects: the protective closed cover plate provided by the utility model can finish the turning opening or closing, locking sealing or unlocking actions of the protective closed cover plate, has good locking design and sealing effect, and ensures that protective equipment meets the requirements of closed anti-virus performance in wartime and the flood control function of preventing urban waterlogging from flowing backwards in severe rainy days at ordinary times. The hand wheel mechanism is driven manually to rapidly open or close the protective airtight cover plate.
In the present invention, the terms "first", "second", and "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a utility tunnel feed opening protection is sealed to be lapped which characterized in that includes:
the well frame is arranged at the discharge hole of the comprehensive pipe gallery, the well frame is provided with an inner side wall surface facing the inside of the comprehensive pipe gallery, and a lock hole is formed in the inner side wall surface of the well frame;
the cover plate covers the well frame;
the hand wheel mechanism is arranged on the cover plate;
the transmission rod is in transmission connection with the hand wheel mechanism, so that the transmission rod can reciprocate along the axial direction of the transmission rod under the driving of the hand wheel mechanism;
the locking seats are fixedly arranged on the cover plate, each locking hole corresponds to one locking seat, sliding holes are formed in the locking seats, and the sliding holes are arranged corresponding to the locking holes;
and one end of the locking mechanism is hinged with the transmission rod, the other end of the locking mechanism is provided with a lock head in sliding fit with the lock hole, and the lock head is driven to slide in the sliding hole by rotating the hand wheel mechanism so as to be inserted into or pulled out of the lock hole.
2. The utility tunnel feed opening protective and airtight cover plate of claim 1,
the locking mechanism comprises a rotating arm as a crank, a long connecting rod and a short connecting rod as connecting rods, and a lock head as a sliding block, wherein the middle of the rotating arm is rotatable through a rotating shaft and is connected with the cover plate, the middle of the rotating arm extends to different directions to form a first stretching arm and a second stretching arm respectively, one end of the long connecting rod is hinged to the first stretching arm, the other end of the long connecting rod is hinged to the lock head, and one end of the short connecting rod is hinged to the second stretching arm, and the other end of the short connecting rod is hinged to the transmission rod.
3. The utility tunnel feed opening protective sealing cover plate of claim 2, further comprising:
the hinge seats are fixedly arranged on the transmission rod;
a plurality of lock holes are formed in two opposite inner side wall surfaces of the well frame;
the locking mechanisms are in two groups, the two locking mechanisms in each group are symmetrically arranged by taking the transmission rod as a symmetry axis, and each locking mechanism corresponds to one locking hole;
each group of the locking mechanisms corresponds to one hinge seat, and the transmission rod is hinged with the other end of the short connecting rod in two locking mechanisms in each group through the hinge seat.
4. The utility tunnel feed opening protective and airtight cover plate of claim 2,
an included angle between the axis of the first stretching arm and the axis of the second stretching arm ranges from 110 degrees to 130 degrees;
and an included angle between the axis of the sliding hole and the axis of the transmission rod is 90 degrees.
5. The utility tunnel feed opening protective and airtight cover plate of claim 3,
the cover plate is rectangular plate-shaped, and 3 groups of locking mechanisms are distributed on the cover plate at equal intervals;
and 3 groups of the locking mechanisms are respectively positioned at the two ends and the middle position of the transmission rod.
6. The utility tunnel feed opening protective sealing cover plate of claim 1, further comprising:
the transmission rod penetrates through the sliding grooves in sequence, and the transmission rod is slidable in the sliding grooves.
7. The utility tunnel feed opening protective sealing cover plate of claim 1, wherein the hand wheel mechanism comprises:
the shell is fixedly arranged on the inner side surface of the cover plate;
the two hand wheels are respectively arranged on the inner side and the outer side of the cover plate;
the driving rod is rotatably arranged on the shell, and two ends of the driving rod are fixedly connected with one hand wheel respectively;
the first gear is sleeved on the driving rod and is positioned in the shell;
and the second gear is fixedly connected with the transmission rod and is meshed with the first gear.
8. The utility tunnel feed opening protective and airtight cover plate of claim 7,
the first gear is a straight gear, and the second gear is a strip gear;
or the first gear is a helical gear, and the second gear is a worm.
9. The utility tunnel feed opening protective and airtight cover plate of claim 1,
the well frame is provided with an upper surface facing to the outside, the upper surface is vertical to the inner side wall surface, and a plurality of positioning holes are formed in the two opposite upper surfaces;
a plurality of positioning pins are fixedly arranged on two side surfaces of the cover plate corresponding to the upper surface provided with the positioning holes, each positioning pin corresponds to one positioning hole, and the positioning pins are inserted into the positioning holes when the cover plate is in a locking state;
and the axis of the lock head is perpendicular to the axis of the positioning pin.
10. The utility tunnel feed opening protective sealing cover plate of claim 9, further comprising:
the sealing rubber strip seat is fixedly arranged on the upper surface along the circumferential direction of the well frame, and is closer to the center of the feed opening than the positioning hole;
the sealing rubber strip is arranged in the sealing rubber strip seat;
the sealing rubber strip protrudes out of the sealing rubber strip seat, and when the cover plate and the well frame are in a closed state, the cover plate is abutted against the sealing rubber strip, so that the sealing rubber strip is deformed;
the anchor hooks are fixedly arranged on the outer side wall surface of the well frame and are used for fixing the well frame at the feed opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121734989.0U CN215715526U (en) | 2021-07-28 | 2021-07-28 | Protective airtight cover plate for blanking port of comprehensive pipe rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121734989.0U CN215715526U (en) | 2021-07-28 | 2021-07-28 | Protective airtight cover plate for blanking port of comprehensive pipe rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215715526U true CN215715526U (en) | 2022-02-01 |
Family
ID=79990296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121734989.0U Active CN215715526U (en) | 2021-07-28 | 2021-07-28 | Protective airtight cover plate for blanking port of comprehensive pipe rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215715526U (en) |
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2021
- 2021-07-28 CN CN202121734989.0U patent/CN215715526U/en active Active
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