Protective device
Through the protective device installed during construction site, the problem of accidental falls caused by difficult for construction workers on the bridge deck to pay attention to the situation below is solved, and effective protection and safety guarantees for construction workers below are achieved.
Patent Information
- Application Number
- CN202421214167.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During construction site construction, it is difficult for construction workers on the bridge deck to pay attention to the construction conditions at the beams and slabs below, which can easily cause materials or tools to accidentally fall into the work space below, causing construction workers to be injured.
A protective device is designed, arranged at the communication port between the upper and lower working spaces, including a main frame, a protective plate and an installation part. The protective plate can be switched to a protective state or a passive state as needed, and the limiting part and the retention member ensure that it is always in a protective state when there is no external force.
Effectively prevent falling objects from causing accidents to construction workers in the work space below, ensure the safety of construction workers, and improve the applicability and easy maintenance of the device through simple structure and low-cost design.
Smart Images
Figure CN222595609U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction site safety equipment, in particular to a protective device. Background Art
[0002] When constructing on a construction site, there are usually multiple workspaces involved, and there are related connections between the multiple workspaces. Take bridge construction as an example. Construction needs to be carried out on the bridge deck while construction needs to be carried out on the beam slab below the bridge deck. The two workspaces above and below the bridge deck are connected.
[0003] However, when there are construction workers working on the beams and slabs, it is usually difficult for the construction workers on the bridge deck to directly notice the relevant situation below. If there are no other construction workers guarding the connection between the two working spaces, it is easy for the construction workers on the bridge deck to accidentally push materials and tools to the connection during work, and eventually fall into the working space of the beams and slabs. In this process, it is very easy for the falling objects to hit the construction workers in the working space below, causing injuries to the construction workers. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a protective device which can be arranged between upper and lower working spaces. When the protective device is in a protective state, it can provide protection for construction workers in the working space below to prevent the generation of falling objects.
[0005] The utility model is realized through the following technical solutions.
[0006] A protective device, characterized in that it is arranged at the connecting port between a first working space and a second working space, and the second working space is placed at the bottom of the first working space;
[0007] The protective device includes a main frame, a protective plate movably mounted on the main frame, and a mounting portion arranged on the main frame for mounting the protective device; the mounting portion can be any component that can install the protective device as a whole at a corresponding position, such as a mounting hole, a mounting block with a mounting hole, etc.
[0008] Under this structure, the position of the protective device can be adjusted according to the change of the construction position to ensure that it is always located on the top of the construction workers in the second working space to provide protection for the construction workers therein.
[0009] Wherein, a limiting portion is provided on the main frame, and when the protective plate conflicts with the limiting portion, the protective device is in a protective state, separating the first working space from the second working space to protect the construction personnel in the second working space;
[0010] When the protective plate is away from the limiting portion to form a passage space on the main frame, the passage space connects the first working space and the second working space, and the protective device is in a passage state, allowing the construction personnel to travel back and forth between the first working space and the second working space.
[0011] As a further improvement of the present invention, the protective device further includes a return component, one end of which is connected to the protective plate, and the other end is connected to the main frame; when the protective plate is affected by an external force and changes its relative position, the protective device will be in a passable state; and when the external force disappears, the return component will guide and drive the protective plate to conflict with the limiting portion again, so that the protective device is in a protective state again. The existence of the return component can ensure that when there is no external force, the protective device is always in a protective state, which can prevent the protective device from losing its function when the construction workers are working below because the construction workers forget to adjust the position of the protective plate.
[0012] As a further improvement of the present invention, the return component includes a pneumatic drive rod, and the pneumatic drive rod is used to drive the protective plate to conflict with the limit portion. After adopting the pneumatic drive rod, the movement process of the protective plate is smoother. Under this structure, during the switching of the protective device between the two states, the construction personnel have sufficient time and can also interrupt the switching process more safely to quickly switch the protective state to the corresponding required state. For example, when the protective device has been switched from the passing state to the protective state, the construction personnel need to pass again, then the switching process can be directly interrupted, and due to the existence of the pneumatic drive rod, the switching process is smoother, and when the construction personnel interfere, they do not have to worry about pinching their hands or being quickly hit by the protective plate.
[0013] As a further improvement of the present invention, the protective plate is movably connected to the mounting block of the main frame, so that when the protective device switches states, the protective plate rotates around the mounting block.
[0014] Since the first working space and the second working space are located in an upper and lower position relationship, the protective device is placed at the connecting port, and forms a separation effect between the two when in the protective state. Therefore, the area occupied by the protective device on the horizontal plane is an important consideration parameter.
[0015] The size and shape of the communication port on the horizontal plane, as well as the connection port attachment and the structure in the first working space or the second working space in the horizontal direction are variable.
[0016] If the protective plate is slidably installed on the main frame, it is easy to cause the protective plate to be blocked in the horizontal direction when switching to the passage state. In other words, the use of other structures may cause the protective device to occupy too much area on the horizontal plane when in the passage state, thereby affecting its applicability. Under this structure, when the protective device is in the passage state, the protective plate is placed in the first working space or the second working space, and the area it occupies on the horizontal plane is smaller, and the applicability of the protective device is better.
[0017] As a further improvement of the present invention, the protective plate is mounted on the mounting block using a folding hinge structure. The folding hinge structure is usually easy to disassemble. After the protective plate has been used for a long time, its strength and other factors are significantly reduced, and it is difficult to achieve the protective effect. At this time, the protective plate can be easily disassembled and replaced.
[0018] As a further improvement of the present invention, when the protective device is in the pass state, the protective plate rotates and moves into the first working space. Under this structure, when construction workers in the second working space need to pass, they only need to push the protective plate upward to complete the state switching of the protective device, and the overall process is smoother.
[0019] As a further improvement of the utility model, the main frame forms a passage space, and when the protective device is in the protective state, the protective plate is embedded in the passage space and a continuous limiting portion is provided at the bottom of the periphery of the protective plate, which provides support for the protective plate in the protective state. Under this structure, when the protective plate is impacted from the first working space, the limiting portion provides a better support effect while limiting the position, which can help the protective plate withstand more impact force, thereby improving the overall impact resistance of the protective device.
[0020] As a further improvement of the utility model, auxiliary components are arranged on the protective plate to facilitate the construction personnel to switch the state of the protective device.
[0021] As a further improvement of the present invention, the mounting portion includes a plurality of pairs of mounting through holes and a plurality of corresponding plastic fixing rods, the plastic fixing rods being any shape-forming member such as a steel wire, and being a rigid member that can prevent large deformation after being formed. The term "matching" specifically refers to the plastic fixing rod being able to pass through the mounting through holes. After passing through a pair of mounting through holes, a single plastic fixing rod can be connected to the surrounding structure by changing its shape to complete the installation and fixation of the protective device. Under this mounting structure, when the protective device is installed, the surrounding structure can be more widely utilized, which is conducive to improving the applicability of the protective device.
[0022] As a further improvement of the present invention, a warning icon and / or warning text is provided on the surface of the protective plate close to the first working space, which is used to warn construction personnel in the first working space to stay away from the protective device as much as possible to reduce more impact on the protective device.
[0023] The beneficial effects of the utility model include:
[0024] (1) The protective device has a relatively simple structure, is easy to maintain, and has a low manufacturing cost, which is conducive to the promotion and use of the product;
[0025] (2) The protective device can have good impact resistance, providing corresponding protection for the construction workers in the second working space below, thereby ensuring the safety of the construction workers;
[0026] (3) Due to the presence of return components, the protective device is usually in a protective state, which effectively prevents construction workers from forgetting to switch the state of the protective device, and further ensures that the protective device can play a protective role during construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The following drawings are provided for combining with the preferred implementation cases of the present invention to help understand the purpose and advantages of the present invention, wherein:
[0028] Figure 1 It is the three-view drawing of the protective device structure;
[0029] Figure 2 It is a structural diagram of the protective device in the passing state;
[0030] Figure 3 This is a schematic diagram of the installation of the protective device in the protective state. DETAILED DESCRIPTION
[0031] The utility model is further described in detail below based on the accompanying drawings and implementation cases.
[0032] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.
[0033] In this embodiment, the construction of the bridge deck diaphragm and the negative bending moment tensioning construction are taken as an example, wherein the bridge deck construction space A is the first working space A, and the beam and slab construction space B under the bridge deck is the second working space B, and the two are connected through a connecting port.
[0034] Embodiment 1:
[0035] A protective device, such as Figure 3 As shown, it is set at the connecting port at the bottom of the bridge deck construction space A and the top of the beam and slab construction space B. Figure 1 As shown, the protective device includes a main frame 1, a protective plate 2 and a mounting portion 3. Figure 1 The protective device shown in FIG. 1 is in a protective state, and the protective plate 2 is embedded in the passage space C formed by the main frame 1 and blocks the passage space C. The mounting portion 3 is as shown in FIG. Figure 1 As shown, they are distributed on the main frame 1.
[0036] like Figure 2 As shown, a limiting portion 101 is provided on the main frame 1. When the protective device is formed as shown in FIG. Figure 1 In the protection state described in the figure, the protection plate 2 conflicts with the limiting portion 101 , limiting the position movement of the protection plate 2 , and the limiting portion 101 also provides support for the protection plate 2 .
[0037] When the protective device is in the pass state, such as Figure 2 As shown in FIG. , the protective plate 2 is moved so that the passage space C formed on the main frame 1 is not blocked, allowing construction workers to pass through.
[0038] Preferably, if Figure 1 As shown, the protective device is also provided with a return member 4, one end of which is fixed to the main frame 1, and the other end is movably connected to the protective plate 2. In this embodiment, the return member 4 always provides pressure for the protective plate 2, so that the protective plate 2 is closely fitted with the limiting portion 101 on the main frame 1, so that the protective device is usually in a protective state.
[0039] Taking this embodiment as an example, when the workers in the beam and slab construction space B need to pass through the protective device after completing the construction, an external force will be applied to the protective plate 2 from below the protective device to drive the protective plate 2 away from the limiting portion 101 so that the passage space C is not blocked. After the construction workers pass through and no external force is applied to the protective plate 2, the protective plate 2 will be driven by the return member 4 to move again until it is tightly fitted with the limiting portion 101, thereby blocking the passage space C.
[0040] Preferably, if Figure 1 As shown, the return component 4 includes a pneumatic drive rod 401, and the pneumatic drive rod 401 is directly connected to the protective plate 2, which can directly provide a stable driving force for the protective plate 2, making the process of switching to the protective state smoother.
[0041] Preferably, if Figure 1~2As shown, the protective plate 2 is movably mounted on the mounting block 102. When the protective device switches between two states, the protective plate 2 will rotate around the mounting block 102. When the protective plate 2 moves and contacts the limiting portion 101, the protective device is in the protective state; when the protective plate 2 does not block the passage space C, the protective device is in the passage state.
[0042] Preferably, if Figure 1 As shown, the protective plate 2 is mounted on the mounting block 102 via a foldable hinge structure 103 , which makes it easy to remove the protective plate 2 from the mounting block 102 for subsequent repair, maintenance and replacement.
[0043] Preferably, if Figure 2 As shown, when the protective device is in the passing state, the protective plate 2 is placed in the bridge deck construction space A after being rotated and moved.
[0044] Taking this embodiment as an example, when the workers in the beam and slab construction space B finish their work and move upward into the bridge deck construction space A, they only need to move to the vicinity of the protective device and push the protective plate 2 upward to put the protective device in a passable state. The state switching process is consistent with the movement path of the construction workers and will not hinder the movement of the construction workers.
[0045] Preferably, if Figure 1~2 As shown, when in the protection state, the main frame 1 surrounds the protective plate 2. At the same time, the limiting portion 101 on the main frame 1 is located at the bottom of the protective plate 2. Figure 2 As shown, the limiting portion 101 is also a continuous structure, which can provide support for the protective plate 2 around it, thereby enhancing the impact resistance of the protective plate 2.
[0046] Embodiment 2:
[0047] The difference between this embodiment and embodiment 1 is that Figure 1 As shown, the protective plate 2 is provided with an auxiliary component 5, which is an auxiliary handle 5 in this embodiment, and can provide a gripping position for construction workers to facilitate changing the position of the protective plate 2, that is, to facilitate switching the state of the protective device.
[0048] Embodiment 3:
[0049] The difference between this embodiment and embodiment 1 or 2 is that Figure 1As shown, the mounting portion 3 includes 3 pairs of mounting through holes 301 provided on the horizontal frame of each main frame 1, and 9 pairs of mounting through holes 301 provided on the vertical frame of each main frame 1. In this embodiment, the shapeable fixing rod 302 is an iron wire 302. When installing the protective device, after a single iron wire 302 passes through a pair of mounting through holes 301, its two ends then pass around the steel bars provided on the bridge deck construction space A and form a fixed knot. Under this structure, the fixing work of the main frame 1 and the protective device is completed.
[0050] Embodiment 4:
[0051] The difference between this embodiment and embodiments 1 to 3 is that in this embodiment, Figure 1 As shown, warning words are provided on the side of the protective plate 2 close to the bridge deck construction space A. Generally speaking, construction workers in the upper working space tend to ignore the position of the connecting port, which causes objects to fall from the connecting port and cause accidents to construction workers in the lower working space. Therefore, providing eye-catching warning words can alert construction workers above.
[0052] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.
Claims
1. A protective device, characterized in that: It is arranged at the connecting port between the first working space (A) and the second working space (B), and the second working space (B) is placed at the bottom of the first working space (A); The protective device comprises a main frame (1), a protective plate (2) movably mounted on the main frame (1), and a mounting portion (3) disposed on the main frame (1) and used for mounting the protective device; Wherein, a limiting portion (101) is provided on the main frame (1); when the protective plate (2) contacts the limiting portion (101), the protective device is in a protective state, separating the first working space (A) from the second working space (B) to protect construction personnel located in the second working space (B); When the protective plate (2) is away from the limiting portion (101) so as to form a passage space (C) on the main frame (1) that connects the first working space (A) and the second working space (B), the protective device is in a passage state, allowing the construction personnel to travel back and forth between the first working space (A) and the second working space (B).
2. A protective device according to claim 1, characterized in that: The protective device further comprises a return member (4), one end of the return member (4) being connected to the protective plate (2), and the other end of the return member (4) being connected to the main frame (1); When the relative position of the protective plate (2) is changed by an external force, the protective device is placed in a passable state; and when the external force disappears, the return member (4) guides and drives the protective plate (2) to contact the limiting portion (101) again, so that the protective device is placed in a protective state again.
3. A protective device according to claim 2, characterized in that: The return component (4) comprises a pneumatic drive rod (401), and the pneumatic drive rod (401) is used to drive the protective plate (2) to contact the limiting portion (101).
4. A protective device according to claim 2, characterized in that: The protective plate (2) is movably connected to a mounting block (102) of the main frame (1), so that when the protective device switches states, the protective plate (2) rotates around the mounting block (102).
5. A protective device according to claim 4, characterized in that: The protective plate (2) is mounted on the mounting block (102) using a foldable hinge structure (103).
6. A protective device according to claim 4, characterized in that: When the protective device is in a passable state, the protective plate (2) rotates and moves into the first working space (A).
7. A protective device according to claim 6, characterized in that: The main frame (1) forms a passage space (C); when the protective device is in the protective state, the protective plate (2) blocks the passage space (C); a continuous limiting portion (101) is provided at the bottom of the periphery of the protective plate (2); when in the protective state, the limiting portion (101) provides support for the protective plate (2).
8. A protective device according to claim 1, characterized in that: The protective plate (2) is provided with an auxiliary component (5) to facilitate the construction personnel to switch the state of the protective device.
9. A protective device according to claim 1, characterized in that: The mounting portion (3) comprises a plurality of pairs of mounting through holes (301) and a plurality of plastic fixing rods (302) adapted to the mounting through holes (301); the plastic fixing rods (302) can pass through the mounting through holes (301), and the plastic fixing rods (302) can be fixedly connected to the surrounding structure by changing their shape, so as to complete the installation and fixation of the protective device.
10. A protective device according to claim 1, characterized in that: A warning icon and / or warning text is provided on a surface of the protective plate (2) close to the first working space (A).