Temporary wellhead protection device for road inspection well

By designing an expandable and retractable protective device, the problem of inconvenient transportation caused by the difficulty in folding existing devices has been solved, and convenient wellhead protection and warning functions have been achieved.

CN224134374UActive Publication Date: 2026-04-17TIANYUAN CONSTR GROUP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANYUAN CONSTR GROUP
Filing Date
2025-05-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing road manhole protection devices are not easy to fold after use, occupy a large volume, and cause transportation inconvenience.

Method used

Design a temporary wellhead protection device including a connecting plate, protective arms, limiting components, and warning components. The device can be quickly folded and unfolded by rotating multiple protective arms relative to the connecting plate and by sliding the limiting components and warning components.

Benefits of technology

It reduces the difficulty of folding and retracting the device, decreases its size, facilitates transportation, and provides effective wellhead protection and warnings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of road construction, and discloses a temporary wellhead protection device for a road inspection well. The temporary wellhead protection device comprises a connecting disc, a protection arm, a limiting piece and a warning piece. A plurality of protective arms are arranged, one end of each protective arm is rotationally connected with the connecting disc, and the plurality of protective arms can be rotationally unfolded in a radial shape relative to the connecting disc; a plurality of limiting pieces are arranged, and each limiting piece is correspondingly connected with one protective arm in a sliding manner; the warning piece is in sliding connection with the connecting disc. According to the device, the folding difficulty is reduced, the size of the device is reduced, and transportation is convenient.
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Description

Technical Field

[0001] This application relates to the field of road construction technology, for example to a temporary manhole protection device for road inspection wells. Background Technology

[0002] Currently, road construction requires multiple procedures, such as roadbed clearing, water-stabilized layer paving, and asphalt paving. After the water-stabilized layer or manhole concrete is completed, warning and protective devices need to be installed at the manhole openings to reduce the risk of people falling into the manholes.

[0003] A protective device exists in related technology, comprising a first guardrail, a second guardrail, and a third guardrail. One end of the first guardrail is detachably connected to one end of the second guardrail, and the other end of the first guardrail is detachably connected to one end of the third guardrail. The other ends of the second and third guardrails are also detachably connected. The first, second, and third guardrails are installed around the manhole opening. By installing the first, second, and third guardrails to enclose the manhole opening, the risk of personnel falling into the manhole is reduced.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] After installation, the guardrails are not easy to fold up, occupy a relatively large volume, and cause inconvenience in transportation.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a temporary manhole protection device for road inspection wells, which reduces the difficulty of folding and retracting, reduces the size of the device, and facilitates transportation.

[0009] In some embodiments, a temporary manhole cover protection device for road inspection wells includes: a connecting plate, a protective arm, a limiting member, and a warning member. Multiple protective arms are provided, one end of each protective arm being rotatably connected to the connecting plate, and the multiple protective arms can be radially deployed relative to the connecting plate; multiple limiting members are provided, each limiting member being slidably connected to one protective arm; the warning member is slidably connected to the connecting plate.

[0010] Optionally, the limiting component includes: a sliding sleeve, a locking element, and a limiting rod. The sliding sleeve is slidably connected to the protective arm and has a stop portion; the locking element is threadedly connected to the sliding sleeve, and one end can abut against the protective arm; the limiting rod is rotatably connected to the sliding sleeve; wherein, the limiting rod can rotate to abut against the stop portion, and the angle between it and the protective arm is a right angle.

[0011] Optionally, the connecting plate is provided with multiple abutment sliders, each abutment slider is correspondingly disposed on the upper side of a protective arm, and each abutment slider can abut against a corresponding protective arm.

[0012] Optionally, the warning component includes: a connecting cylinder, a connecting seat, a lifting rod, a solar panel, a rotating rod, and a warning light. The connecting cylinder is slidable relative to the connecting plate and has a mounting hole; the connecting seat is fixedly connected to the bottom of the connecting cylinder, and its outer wall is threadedly connected to the inner wall of the connecting plate; the lifting rod is slidably connected to the top of the connecting cylinder; the solar panel is fixedly connected to the top of the lifting rod; one end of the rotating rod is rotatably connected to the inner wall of the mounting hole; the warning light is rotatably connected to the other end of the rotating rod, and the warning light is retractable into the mounting hole, and the warning light is electrically connected to the solar panel.

[0013] Optionally, a raised ring is provided on the outer wall of the connecting cylinder to restrict the sliding separation of the connecting cylinder and the connecting disc.

[0014] Optionally, a support rod is detachably provided on one side wall of the warning light, which provides upward support for the warning light.

[0015] Optionally, the side wall of the warning light is provided with a mounting groove, and the support rod is detachably installed in the mounting groove; wherein, when the support rod is installed in the mounting groove in the first position, one end of the support rod abuts against a corresponding protective arm; when the support rod is installed in the mounting groove in the second position, the support rod retracts into the mounting groove.

[0016] The temporary manhole protection device for road inspection wells provided in this disclosure can achieve the following technical effects:

[0017] When protection and warning are required at the wellhead, multiple protective arms rotate and open relative to the connecting plate until one side wall of the protective arm abuts against the lower side wall of the connecting plate. Then, depending on the size of the wellhead, sliding limiters relative to the protective arms are adjusted to allow them to insert into the wellhead. The protective arms are placed at the edge of the wellhead, and the limiters are slid along them until they abut against the inner wall of the wellhead, thus limiting the movement of the protective arms and connecting plate. The warning piece is slid relative to the connecting plate to adjust its height, providing warning and protection for the wellhead. When no protection or warning is required at the wellhead, the limiters are slid away from the inner wall of the wellhead, and the protective arms and connecting plate are removed from the wellhead. The protective arms and connecting plate are rotated relative to each other, changing the radial deployment of the protective arms to a folded state. The warning piece is then slid relative to the connecting plate until part of the warning piece is positioned between the folded protective arms, thus achieving folding. This reduces the difficulty of folding, decreases the size of the device, and facilitates transportation.

[0018] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0020] Figure 1 This is a schematic diagram of a temporary manhole protection device for road inspection wells provided in an embodiment of this disclosure;

[0021] Figure 2 This is a schematic diagram of the folded structure of a temporary manhole protection device for road inspection wells provided in an embodiment of this disclosure;

[0022] Figure 3 This is a schematic diagram of the folded structure of another temporary manhole protection device for road inspection wells provided in this embodiment of the present disclosure;

[0023] Figure 4 This is an exploded view of a structural schematic diagram of a temporary manhole protection device for road inspection wells provided in an embodiment of this disclosure;

[0024] Figure 5 This is an exploded view of another structural schematic diagram of a temporary manhole protection device for road inspection wells provided in this disclosure embodiment;

[0025] Figure 6 This is an exploded view of a schematic diagram of a warning light and support rod assembly structure provided in an embodiment of this disclosure;

[0026] Figure 7 This is a schematic diagram of a support rod installed in a mounting groove at a first position according to an embodiment of the present disclosure;

[0027] Figure 8 This is a schematic diagram of a support rod installed in a mounting groove at a second position, according to an embodiment of the present disclosure.

[0028] Figure label:

[0029] 100. Connecting plate; 110. Abutting slider; 120. Slide groove; 130. Slide rod; 200. Protective arm; 210. Guide groove; 300. Limiting component; 310. Sliding sleeve; 311. Stop; 320. Locking component; 330. Limiting rod; 400. Warning component; 410. Connecting cylinder; 411. Mounting hole; 412. Protruding ring; 420. Connecting seat; 430. Lifting rod; 440. Solar panel; 450. Rotating rod; 460. Warning light; 461. Mounting groove; 462. Support groove; 470. Support rod; 471. Support block. Detailed Implementation

[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Unless otherwise stated, the term "multiple" means two or more.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0036] Combination Figure 1-3 As shown, this embodiment of the present disclosure provides a temporary manhole cover protection device for road inspection wells, comprising: a connecting plate 100, protective arms 200, limiting members 300, and warning members 400. Multiple protective arms 200 are provided, one end of each protective arm 200 being rotatably connected to the connecting plate 100, and the multiple protective arms 200 can be radially rotated and deployed relative to the connecting plate 100; multiple limiting members 300 are provided, each limiting member 300 being slidably connected to one protective arm 200; the warning member 400 is slidably connected to the connecting plate 100.

[0037] Using the temporary manhole protection device for road inspection wells provided in this embodiment, when the manhole requires protection and warning, multiple protective arms 200 rotate and open relative to the connecting plate 100 until one side wall of the protective arm 200 abuts against the lower side wall of the connecting plate 100. Then, depending on the size of the manhole, sliding limiting members 300 are slidable relative to the protective arms 200, adjusting their position relative to the connecting plate 100 so that multiple limiting members 300 can be inserted into the manhole. The multiple protective arms 200 are placed at the edge of the manhole, and the limiting members 300 are slidable on the protective arms 200 so that all the limiting members 300 abut against the inner side wall of the manhole, thereby limiting the swaying of the protective arms 200 and the connecting plate 100. The warning member 400 is slidable relative to the connecting plate 100, adjusting its height to provide warning and protection for the manhole. When no protection or warning is required at the wellhead, the sliding limiter 300 is moved away from the inner wall of the wellhead, and the protective arms 200 and connecting plate 100 are removed from the wellhead. The protective arms 200 and connecting plate 100 are rotated relative to each other, changing the multiple protective arms 200 from a radially extended state to a retracted state. The warning piece 400 and connecting plate 100 are then slid relative to each other, so that part of the warning piece 400 is positioned between the retracted multiple protective arms 200, thus achieving folding. This reduces the difficulty of folding, decreases the size of the device, and facilitates transportation.

[0038] Optionally, three protective arms 200 and three limiting members 300 are provided, with each limiting member 300 corresponding to one protective arm 200 in a sliding connection. In this way, the number of protective arms 200 is relatively large, and by placing multiple protective arms 200 at the edge of the wellhead, the support stability and protection effect are relatively good.

[0039] Combination Figure 4As shown, optionally, the limiting member 300 includes: a sliding sleeve 310, a locking member 320, and a limiting rod 330. The sliding sleeve 310 is slidably connected to the protective arm 200 and is provided with a stop portion 311; the locking member 320 is threadedly connected to the sliding sleeve 310, and one end can abut against the protective arm 200; the limiting rod 330 is rotatably connected to the sliding sleeve 310; wherein, the limiting rod 330 can rotate to abut against the stop portion 311, and the angle between it and the protective arm 200 is a right angle. In this way, when the protective arm 200 is placed at the edge of the wellhead, the sliding sleeve 310 moves on the protective arm 200, thereby driving the locking member 320 and the limiting rod 330 to move until the limiting rod 330 abuts against the inner sidewall of the wellhead, and the limiting rod 330 abuts against the stop portion 311, and the stop portion 311 and the sidewall of the wellhead lock the limiting rod 330. By rotating the locking member 320, one end of the locking member 320 is tightly abutted against the protective arm 200, thereby locking the sliding sleeve 310 onto the protective arm 200 and restricting the sliding sleeve 310 from sliding relative to the protective arm 200. When it is necessary to retract the protective arm 200, rotating the locking member 320 releases the lock on the sliding sleeve 310, allowing the limiting rod 330 to move away from the inner wall of the wellhead, making it easier to remove the device from the wellhead.

[0040] Understandably, each protective arm 200 has a limiting component 300, and the three protective arms 200 have three corresponding limiting rods 330. The three limiting rods 330 abut against the inner wall of the wellhead, so that the device can be placed at the wellhead relatively stably.

[0041] Optionally, the locking element 320 is a bolt, which is threadedly connected to the sliding sleeve 310. In this way, rotating the bolt causes it to abut against the protective arm 200, locking the sliding sleeve 310. Moving the bolt away from the protective arm 200 allows the sliding sleeve 310 to slide relative to the protective arm 200, making operation more convenient.

[0042] Optionally, each protective arm 200 is provided with a guide groove 210, and the end of the bolt facing the protective arm 200 can extend into the guide groove 210 and abut against the inner sidewall of the guide groove 210. In this way, the bolt and the guide groove 210 cooperate to provide guidance and limit the sliding of the sliding sleeve 310 on the protective arm 200, reducing the risk of displacement.

[0043] Optionally, a plurality of abutment sliders 110 are slidably provided on the connecting plate 100. Each abutment slider 110 is correspondingly disposed on the upper side of a protective arm 200, and each abutment slider 110 can abut against a corresponding protective arm 200. In this way, since the protective arm 200 is relatively long, sliding the abutment slider 110 off the connecting plate 100, and having the connecting plate 100 and the abutment slider 110 jointly abut against the upper side wall of the protective arm 200, can increase the contact area with the protective arm 200 and shorten the torque between the protective arm 200 and the wellhead edge, thereby reducing the risk of bending deformation of the protective arm 200.

[0044] Specifically, there are three abutment sliders 110. Thus, corresponding to the number of three protective arms 200, each abutment slider 110 is disposed on the upper side of one protective arm 200.

[0045] Optionally, the connecting plate 100 is provided with three slide grooves 120, and each abutting slider 110 is provided with a slide rod 130, with each slide rod 130 slidably connected to one slide groove 120. In this way, the slide rod 130 and the slide groove 120 cooperate to provide guidance and limit for the abutting slider 110, reducing the risk of the abutting slider 110 deviating.

[0046] Specifically, the included angle between adjacent slides 120 is 120 degrees.

[0047] Combination Figure 5As shown, optionally, the warning component 400 includes: a connecting cylinder 410, a connecting seat 420, a lifting rod 430, a solar panel 440, a rotating rod 450, and a warning light 460. The connecting cylinder 410 is slidable relative to the connecting plate 100 and is provided with a mounting hole 411; the connecting seat 420 is fixedly connected to the bottom of the connecting cylinder 410, and its outer side wall is threadedly connected to the inner side wall of the connecting plate 100; the lifting rod 430 is slidably connected to the top of the connecting cylinder 410; the solar panel 440 is fixedly connected to the top of the lifting rod 430; one end of the rotating rod 450 is rotatably connected to the inner side wall of the mounting hole 411; the warning light 460 is rotatably connected to the other end of the rotating rod 450, and the warning light 460 is retractable into the mounting hole 411, and the warning light 460 is electrically connected to the solar panel 440. In this way, when it is necessary to prop up the connecting cylinder 410, the connecting plate 100 connected to the connecting seat 420 is attached, and the sliding lifting rod 430 and the connecting cylinder 410 are slidably connected to each other, raising the solar panel 440. Then, the warning light 460 is pulled out from the mounting hole 411, and the rotating rod 450 rotates relative to the connecting cylinder 410 and the warning light 460. After the warning light 460 is pulled out of the mounting hole 411, the warning range is relatively large, and the warning effect is relatively good. Alternatively, the warning light 460 can be pushed back into the mounting hole 411, and the lifting rod 430 and the solar panel 440 can be lowered, separating the connecting seat 420 from the connecting plate 100. This allows the connecting cylinder 410 to be stored between the multiple protective arms 200, reducing its volume and making it easier to carry and transport.

[0048] Specifically, the diameter of the connecting seat 420 is larger than the diameter of the connecting cylinder 410. In this way, the connecting seat 420 can limit the connecting cylinder 410, reducing the risk of the connecting cylinder 410 detaching from the connecting plate 100.

[0049] Optionally, the length of the warning light 460 is less than the length of the mounting hole 411. This creates a gap between the mounting hole 411 and the warning light 460, making it easier to pull out the warning light 460.

[0050] Optionally, there are three warning lights 460 and three mounting holes 411. Each warning light 460 is rotatably connected to one end of two rotating rods 450. In this way, the number of warning lights 460 is relatively large, and the warning range and angle are relatively large.

[0051] Optionally, a raised ring 412 is provided on the outer side wall of the connecting cylinder 410 to restrict the sliding separation of the connecting cylinder 410 from the connecting disc 100. This reduces the risk of the connecting cylinder 410 detaching from the connecting disc 100.

[0052] Combination Figure 6As shown, optionally, a support rod 470 is detachably provided on one side wall of the warning light 460, which provides upward support for the warning light 460. Thus, when the warning light 460 is pulled out of the mounting hole 411, the support rod 470 provides support for the warning light 460, reducing the risk of downward displacement and resulting in a relatively better warning effect.

[0053] Optionally, the warning light 460 has a mounting groove 461 on its side wall, and the support rod 470 is detachably installed in the mounting groove 461; wherein, in the first position (combined with) the support rod 470 Figure 7 When the support rod 470 is installed in the mounting slot 461 (as shown), one end of the support rod 470 abuts against a corresponding protective arm 200; when the support rod 470 is in the second position (combined with...) Figure 8 When the support rod 470 is installed in the mounting slot 461 (as shown), it retracts into the mounting slot 461. Thus, when the support rod 470 is installed in the first position in the mounting slot 461, it provides support for the warning light 460, reducing the risk of downward displacement and improving the warning effect. When the support rod 470 is installed in the second position in the mounting slot 461, it retracts into the mounting slot 461, reducing its volume and facilitating carrying and transportation.

[0054] Optionally, one end of the support rod 470 is provided with a support block 471, and a support groove 462 is provided in the mounting groove 461. The support block 471 can be installed in the support groove 462 to limit the sliding of the support rod 470 relative to the mounting groove 461. In this way, the support block 471 and the support groove 462 cooperate to increase the support strength of the support rod 470 for the warning light 460 and reduce the risk of the warning light 460 shifting downward.

[0055] Understandably, the support rod 470 being installed in the mounting groove 461 in the first position means that the support rod 470 is installed in the mounting groove 461 with one end of the support block 471 facing upwards; the support rod 470 being installed in the mounting groove 461 in the second position means that the support rod 470 is installed in the mounting groove 461 with one end of the support block 471 facing downwards.

[0056] Understandably, when the support rod 470 is installed in the mounting slot 461 in the first position and the abutting slider 110 slides out from the connecting plate 100, the support rod 470 can abut against the abutting slider 110.

[0057] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A temporary access well protection device for a road inspection well, characterized in that, include: Connecting disk (100); The protective arms (200) are provided in multiple ways. One end of each protective arm (200) is rotatably connected to the connecting plate (100). The multiple protective arms (200) can be radially rotated and unfolded relative to the connecting plate (100). Multiple limiting components (300) are provided, and each limiting component (300) is slidably connected to a protective arm (200); The warning element (400) is slidably connected to the connecting plate (100).

2. A temporary access well protection device for a road inspection well according to claim 1, characterized in that Limiting element (300), including: The sliding sleeve (310) is slidably connected to the protective arm (200) and is provided with a stop (311); The locking element (320) is threadedly connected to the sliding sleeve (310), and one end can abut against the guard arm (200); The limiting rod (330) is rotatably connected to the sliding sleeve (310); The limiting rod (330) can rotate to abut against the stop (311) and the angle between it and the guard arm (200) is a right angle.

3. The temporary manhole cover protection device for road inspection wells according to claim 2, characterized in that, Multiple abutment sliders (110) are slidably provided on the connecting plate (100). Each abutment slider (110) is correspondingly set on the upper side of a protective arm (200), and each abutment slider (110) can abut against a corresponding protective arm (200).

4. The temporary access well hood for a roadway inspection well of claim 1, wherein, Warning item (400), including: The connecting cylinder (410) is slidable relative to the connecting plate (100) and is provided with mounting holes (411); The connecting seat (420) is fixedly connected to the bottom of the connecting cylinder (410), and its outer side wall can be threadedly connected to the inner side wall of the connecting plate (100). The lifting rod (430) is slidably connected to the top of the connecting cylinder (410); The solar panel (440) is fixedly connected to the top of the lifting rod (430); The rotating rod (450) is rotatably connected at one end to the inner wall of the mounting hole (411); The warning light (460) is rotatably connected to the other end of the rotating rod (450), and the warning light (460) can be retracted into the mounting hole (411). The warning light (460) is electrically connected to the solar panel (440).

5. The temporary manhole cover protection device for road inspection wells according to claim 4, characterized in that, A raised ring (412) is provided on the outer side wall of the connecting cylinder (410) to restrict the sliding separation of the connecting cylinder (410) and the connecting disc (100).

6. The temporary manhole cover protection device for road inspection wells according to claim 4, characterized in that, A support rod (470) is detachably provided on one side wall of the warning light (460), which provides upward support for the warning light (460).

7. The temporary manhole cover protection device for road inspection wells according to claim 6, characterized in that, The side wall of the warning light (460) is provided with a mounting groove (461), and the support rod (470) is detachably installed in the mounting groove (461); When the support rod (470) is installed in the mounting groove (461) in the first position, one end of the support rod (470) abuts against a corresponding protective arm (200); when the support rod (470) is installed in the mounting groove (461) in the second position, the support rod (470) retracts into the mounting groove (461).