An alarmable intelligent safety belt device for long-span fabricated construction

Abstract

The application belongs to the technical field of safety devices, and discloses an alarmable intelligent safety belt device for large-span fabricated construction, which comprises a safety belt body, a supporting box fixedly connected to one side of the safety belt body, an outer box jacked to the supporting box, a motor fixedly connected to the inner part of the outer box, and a transmission assembly movably connected to the inner part of the outer box. The transmission assembly, the first round rod and the moving assembly are matched to facilitate the alarm reset of the device. After the second round rod moves up and down once, the vertical groove, the second arc groove and the third arc groove are matched to drive the third gear to rotate counterclockwise for one round, so that the teeth of the third gear are engaged with the first gear. After the first gear rotates, the first round rod releases the pressing of the button, and the buzzer alarm stops alarming, so that the device is conveniently reset, and the overall convenience and practicality of the device are improved.

Description

Technical Field

[0001] This invention belongs to the field of safety device technology, specifically an alarm-enabled intelligent safety belt device for large-span prefabricated construction. Background Technology

[0002] Large-span prefabricated construction refers to the use of prefabricated components in building construction to achieve structural design and construction with a large span. This construction method is usually used for large bridges, stadiums, exhibition centers and other buildings that require large spaces and large spans.

[0003] During large-span prefabricated construction, workers need to wear safety belts. Most existing smart safety belts with alarms typically have tension sensors at the hooks and anchor points. When a worker falls or the safety belt is accidentally pulled, the sensors can detect changes in tension in real time and transmit the data to the control unit, thus triggering an alarm mechanism. However, when workers bend over or pick up tools, changes in tension may occur, potentially causing false alarms. Furthermore, after triggering an alarm, the circuit of most existing smart safety belts may enter a protection or lockout state, making reset inconvenient and causing workers and on-site personnel to suspend work. If the reset operation is complex and time-consuming, each such situation wastes a significant amount of time. For construction processes requiring continuous operation, such as the hoisting and splicing of large prefabricated components, frequent non-rapid resets can severely impact construction progress and increase the overall construction cycle. Therefore, this paper proposes a smart safety belt device with alarm function for large-span prefabricated construction to address the problems mentioned in the background technology. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an alarm-enabled intelligent safety belt device for large-span prefabricated construction, which has the advantages of facilitating alarm reset of the device, thereby improving the overall convenience and practicality of the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an alarm-enabled intelligent safety belt device for large-span prefabricated construction, comprising a safety belt body, a support box fixedly connected to one side of the safety belt body, an outer box snapped into the inside of the support box, a motor fixedly connected to the inside of the outer box, and a transmission component movably connected to the inside of the outer box;

[0006] The transmission assembly includes a first gear, a second gear, and a third gear. The inner wall of the first gear has two first arc grooves, and the inner wall of the third gear has a vertical groove, a second arc groove, and a third arc groove.

[0007] The first gear is movably connected to a first round rod, the third gear is movably connected to a moving component, the support box is movably connected to a snap-fit ​​component, the outer box is equipped with a motion sensor, and a buzzer alarm is fixedly connected to one side of the outer box.

[0008] The snap-fit ​​assembly includes a clamping plate, and the two sides inside the support box are movably connected to a first limiting plate, with a wedge fixedly connected to the top of the first limiting plate.

[0009] Preferably, a second limiting plate is fixedly connected to each of the two first limiting plates on opposite sides. The end of the second limiting plate near the clamping plate is provided with an inclined groove. A second spring sheet is fixedly connected to the bottom end of the second limiting plate. The second limiting plate is elastically connected to the support box through the second spring sheet.

[0010] Preferably, the opposite ends of the two inclined blocks are both inclined, both ends of the support box are threaded with bolt assemblies, and the bottom end of the inclined block is provided with an internal thread that matches the bolt assembly.

[0011] Preferably, both ends of the bottom of the clamping plate are provided with protrusions that are movably engaged inside the inclined grooves, and the two inclined grooves face opposite directions;

[0012] A gasket made of rubber is provided on the side of the clamping plate near the outer casing. The gasket initially abuts against the side wall of the outer casing.

[0013] Preferably, the output shaft end of the motor is fixedly connected to the second gear. Both the second gear and the third gear have teeth on one side and smooth side on the other. The second gear and the third gear are symmetrically arranged on both sides of the first gear.

[0014] Preferably, the arc of the first arc groove is 180 degrees, and the top end of the first round rod is provided with a connecting post that is movably engaged inside the first arc groove.

[0015] The bottom end of the first round rod is provided with a square plate, and the inner wall of the outer box is provided with a square groove for circumferentially limiting the square plate at the bottom of the first round rod.

[0016] Preferably, the outer casing has a button located directly below the first round rod. After the first gear rotates, it drives the connecting post on the first round rod to slide along the trajectory of the first arc groove, and causes the first round rod to move down. After the first round rod moves down, it abuts against the button.

[0017] Preferably, the upper and lower ends of the vertical groove are connected to the second arc groove and the third arc groove, respectively. The end of the second arc groove away from the vertical groove and the end of the third arc groove away from the vertical groove are connected. The arc of the second arc groove is 260 degrees and the arc of the third arc groove is 100 degrees.

[0018] The movable component includes a second round rod, the outer wall of which is provided with a round block, which is initially engaged with the top of the vertical groove.

[0019] Preferably, a limiting block is fixedly connected to the bottom end of the second round rod, and a sliding groove for limiting the limiting block is provided on the inner wall of the outer box;

[0020] The top end of the second round rod penetrates the outer wall of the outer box and is flush with the top of the outer box. The top of the limiting block is provided with an anti-slip groove.

[0021] Preferably, a first spring is fixedly connected to the bottom of the limiting block. The first spring is fixed to the outer box and is used to squeeze the limiting block and keep the limiting block moving upward.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention facilitates alarm reset through the cooperation of the transmission component, the first round rod, and the moving component, thereby improving the overall convenience and practicality of the device. The second and third gears are half smooth and half toothed, ensuring that each rotation of the second and third gears drives only the first gear to rotate 180 degrees. After the second round rod moves up and down once, the engagement between the vertical groove, the second arc groove, and the third arc groove drives the third gear to rotate counterclockwise one full turn, causing the teeth of the third gear to mesh with the first gear and drive the first gear to rotate clockwise 180 degrees. After the first gear rotates, the first round rod slides upward along the trajectory of the first arc groove, releasing the button and disconnecting the circuit inside the outer casing, thus stopping the buzzer alarm. This facilitates device reset and further improves the overall convenience and practicality of the device.

[0024] This invention facilitates the removal of the alarm device from the seatbelt through the cooperation of structures such as the clamping plate, the wedge block, and the bolt assembly, thereby simplifying maintenance and testing. By rotating the bolt assembly, it can be removed from inside the wedge block, thus releasing the fixed connection between the wedge block and the support box. Subsequently, by pulling the wedge block, the contact with the top of the outer box is released. As the wedge block moves, it causes the first and second limiting plates to move in the same direction, causing the protrusion at the bottom of the clamping plate to slide along the trajectory of the inclined groove. This causes the clamping plate to move the pad away from the outer box, releasing the clamping and fixing of the outer box, thus facilitating the removal of the outer box from the support box and enabling convenient maintenance and testing of the motion sensor. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram showing the positional relationship between the support box, outer box, snap-fit ​​assembly, and bolt assembly of the present invention;

[0027] Figure 3 This is a schematic diagram of the front section structure of the support box of the present invention;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram showing the positional relationship between the transmission component, the first round rod, the moving component, and the snap-fit ​​component of the present invention;

[0030] Figure 6 This is a partial cross-sectional view of the first gear in this invention;

[0031] Figure 7 This is a schematic diagram of the orthographic structure at the third gear of the present invention;

[0032] Figure 8 This is a cross-sectional view of the third gear in this invention;

[0033] Figure 9 This is an exploded view of the snap-fit ​​component of the present invention.

[0034] In the diagram: 1. Seat belt body; 2. Support box; 3. Outer box; 4. Motor; 5. Transmission assembly; 51. First gear; 52. Second gear; 53. Third gear; 54. First arc groove; 55. Vertical groove; 56. Second arc groove; 57. Third arc groove; 6. First round rod; 7. Moving assembly; 71. Second round rod; 72. Limiting block; 73. First spring; 8. Snap-fit ​​assembly; 81. Clamping plate; 82. First limiting plate; 83. Inclined block; 84. Second limiting plate; 85. Inclined groove; 86. Second spring; 87. Gasket; 9. Motion sensor; 10. Button; 11. Buzzer alarm; 12. Bolt assembly. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figures 1 to 9As shown, the present invention provides an alarm-enabled intelligent safety belt device for large-span prefabricated construction, including a safety belt body 1, a support box 2 fixedly connected to one side of the safety belt body 1, an outer box 3 snapped into the inside of the support box 2, a motor 4 fixedly connected inside the outer box 3, and a transmission component 5 movably connected inside the outer box 3.

[0037] The transmission assembly 5 includes a first gear 51, a second gear 52 and a third gear 53. The inner wall of the first gear 51 is provided with two first arc grooves 54, and the inner wall of the third gear 53 is provided with a vertical groove 55, a second arc groove 56 and a third arc groove 57.

[0038] The first gear 51 is internally connected to the first round rod 6, the third gear 53 is internally connected to the moving component 7, the support box 2 is internally connected to the snap-fit ​​component 8, the outer box 3 is internally equipped with a motion sensor 9, and the outer box 3 is externally connected to a buzzer alarm 11 on one side.

[0039] The snap-fit ​​assembly 8 includes a clamping plate 81, and the two sides inside the support box 2 are movably connected to a first limiting plate 82, and the top of the first limiting plate 82 is fixedly connected to an inclined block 83.

[0040] The above scheme is adopted: by making half of the second gear 52 and the third gear 53 smooth and half toothed, the second gear 52 and the third gear 53 can only drive the first gear 51 to rotate 180 degrees when they rotate one revolution. After the second round rod 71 moves up and down once, it can drive the third gear 53 to rotate counterclockwise one revolution through the cooperation between the vertical groove 55, the second arc groove 56 and the third arc groove 57. Then, the teeth of the third gear 53 mesh with the first gear 51, and drive the first gear 51 to rotate clockwise 180 degrees. After the first gear 51 rotates, the first round rod 6 slides upward along the trajectory of the first arc groove 54, thereby releasing the first round rod 6 from pressing the button 10, thereby disconnecting the circuit inside the outer box 3, and stopping the buzzer alarm 11 from alarming. This makes it easy to reset the device, thereby improving the overall convenience and practicality of the device.

[0041] like Figure 2 , Figure 3 and Figure 9As shown, a second limiting plate 84 is fixedly connected to one side of each of the two first limiting plates 82. A groove 85 is provided at one end of the second limiting plate 84 near the clamping plate 81. A second spring piece 86 is fixedly connected to the bottom end of the second limiting plate 84. The second limiting plate 84 is elastically connected to the support box 2 through the second spring piece 86. The opposite ends of the two inclined blocks 83 are both inclined. Bolt assemblies 12 are threaded to both ends of the support box 2. An internal thread that matches the bolt assembly 12 is provided at the bottom end of the inclined block 83. Both ends of the bottom of the clamping plate 81 are provided with protrusions that are movably engaged inside the inclined groove 85. The two inclined grooves 85 face opposite directions. A gasket 87 is provided on the side of the clamping plate 81 near the outer box 3. The gasket 87 is made of rubber material and initially abuts against the side wall of the outer box 3.

[0042] The above scheme is adopted as follows: the top of the inclined block 83 is inclined, and its function is that when it is necessary to reinstall the outer box 3 into the support box 2, the bottom end of the outer box 3 abuts against the inclined surface of the inclined block 83, thereby squeezing the two inclined blocks 83 to move in opposite directions. While the inclined blocks 83 are moving, the clamping plate 81 moves away from the outer box 3 under the action of external force. Then, the outer box 3 is directly inserted into the support box 2 until the outer box 3 releases the abutment against the inclined block 83. At this time, through the design of the second spring 86, the first limiting plate 82 drives the inclined block 83 to reset under the action of the elastic force of the second spring 86, so that the inclined block 83 abuts against and limits the top of the outer box 3. While the inclined block 83 resets, the clamping plate 81 is reset by external force, so that the clamping plate 81 drives the gasket 87 to abut against the side wall of the outer box 3, thereby clamping and fixing the outer box 3.

[0043] The gasket 87 is made of rubber material. Its function is to increase the friction between the gasket 87 and the side wall of the outer box 3 when the rubber material has good friction and resistance, thereby improving the clamping and fixing effect of the outer box 3, preventing the outer box 3 from sliding or displacing inside the support box 2, and thus ensuring that the outer box 3 is stably fixed inside the support box 2.

[0044] like Figures 3 to 6As shown, the output shaft end of the motor 4 is fixedly connected to the second gear 52. Both the second gear 52 and the third gear 53 have teeth on one side and smooth side on the other. The second gear 52 and the third gear 53 are symmetrically arranged on both sides of the first gear 51. The arc of the first arc groove 54 is 180 degrees. The top of the first round rod 6 is provided with a connecting post that is movably engaged inside the first arc groove 54. The bottom of the first round rod 6 is provided with a square plate. The inner wall of the outer box 3 is provided with a square groove for circumferentially limiting the square plate at the bottom of the first round rod 6. The inside of the outer box 3 is provided with a button 10 located directly below the first round rod 6. After the first gear 51 rotates, it drives the connecting post on the first round rod 6 to slide along the trajectory of the first arc groove 54, and causes the first round rod 6 to move down. After the first round rod 6 moves down, it abuts against the button 10.

[0045] The above scheme is adopted: specifically by Figure 5 As can be seen, the second gear 52 and the third gear 53 are symmetrically arranged. Their function is that when the second gear 52 rotates clockwise one revolution, it drives the first gear 51 to rotate counterclockwise 180 degrees. At this time, the smooth surface of the third gear 53 contacts the first gear 51, so that when the second gear 52 rotates, it will not drive the third gear 53 to rotate through the first gear 51. When the second gear 52 rotates one revolution and resets, and then when the third gear 53 rotates counterclockwise one revolution, the smooth surface of the second gear 52 contacts the first gear 51. Thus, when the third gear 53 rotates, it will only drive the first gear 51 to rotate in the reverse direction and reset, thereby ensuring the normal operation of the device.

[0046] like Figures 4 to 8 As shown, the upper and lower ends of the vertical groove 55 are connected to the second arc groove 56 and the third arc groove 57 respectively. The end of the second arc groove 56 away from the vertical groove 55 and the end of the third arc groove 57 away from the vertical groove 55 are connected. The arc of the second arc groove 56 is 260 degrees and the arc of the third arc groove 57 is 100 degrees. The moving component 7 includes a second round rod 71. A round block is provided on the outer wall of the second round rod 71. The round block is initially movably engaged with the top of the vertical groove 55. A limiting block 72 is fixedly connected to the bottom end of the second round rod 71. A sliding groove for limiting the limiting block 72 is opened on the inner wall of the outer box 3. The top end of the second round rod 71 penetrates the outer wall of the outer box 3 and is flush with the top of the outer box 3. An anti-slip groove is provided on the top of the limiting block 72. A first spring piece 73 is fixedly connected to the bottom of the limiting block 72. The first spring piece 73 is fixedly connected to the outer box 3. The first spring piece 73 is used to squeeze the limiting block 72 and keep the limiting block 72 moving upward.

[0047] Using the above scheme: When the operator releases the second round rod 71, the limiting block 72 will reset under the elastic force of the first spring 73. As the second round rod 71 moves upward, the round block slides through the second arc groove 56 into the interior of the third arc groove 57. Therefore, after the second round rod 71 moves upward, it drives the round block to slide along the trajectory of the third arc groove 57, thereby causing the third gear 53 to continue to rotate counterclockwise by 100 degrees. When the second round rod 71 is completely reset, the round block on its outer wall slides back to the top of the vertical groove 55 through the third arc groove 57. At the same time, after the second round rod 71 moves up and down once, through the cooperation between the vertical groove 55, the second arc groove 56 and the third arc groove 57, it drives the third gear 53 to rotate counterclockwise by one revolution, thus facilitating the reset of the third gear 53 for the next use.

[0048] The working principle and usage process of this invention: When the construction worker wears the safety belt body 1, the motion sensor 9 will monitor the worker's body movement when the worker is carrying out large-span prefabricated construction work. When the worker's body tilt angle is abnormal or the acceleration suddenly increases, the motion sensor 9 will convert the abnormal signal into an electrical signal and send it to the information terminal. Subsequently, the information terminal will issue a start command to the motor 4, thereby driving the second gear 52 to rotate clockwise one revolution through the motor 4.

[0049] As the second gear 52 rotates, its teeth mesh with the first gear 51, causing the first gear 51 to rotate 180 degrees counterclockwise. This causes the connecting post on the first round rod 6 to slide along the trajectory of the first arc groove 54. Since the inner wall of the outer box 3 has a square groove that limits the first round rod 6, the connecting post can only move the first round rod 6 downwards, causing the first round rod 6 to abut against the button 10. When the button 10 is pressed by the first round rod 6, the circuit inside the outer box 3 will be closed, and the signal of the closed circuit will be transmitted to the buzzer alarm 11. Subsequently, the buzzer alarm 11 will sound an alarm to alert people in the vicinity.

[0050] Once the crisis is over, the construction workers press the second round rod 71, causing the second round rod 71 to move the limiting block 72 downwards. This causes the round block on the outer wall of the second round rod 71 to move down along the trajectory of the vertical groove 55, and then slide through the vertical groove 55 into the interior of the second arc groove 56. The round block then moves along the trajectory of the second arc groove 56 to drive the third gear 53 to rotate 260 degrees. As the third gear 53 rotates, its teeth mesh with the first gear 51, causing the first gear 51 to rotate 180 degrees clockwise. This causes the first round rod 6 to move up along the trajectory of the first arc groove 54, releasing the contact with the button 10. Subsequently, the circuit inside the outer casing 3 is disconnected, and a disconnection signal is transmitted to the buzzer alarm 11, causing the buzzer alarm 11 to stop sounding.

[0051] When the motion sensor 9 needs to be inspected or maintained, the operator rotates the bolt assembly 12 to disengage it from the inside of the inclined block 83, thereby releasing the inclined block 83 from the support box 2. Then, by pulling the two inclined blocks 83 to both sides, the bottom of the inclined block 83 is released from contact with the top of the outer box 3. As the inclined block 83 moves, the first limiting plate 82 drives the second limiting plate 84 to move in the same direction, causing the protrusion at the bottom of the clamping plate 81 to slide along the trajectory of the inclined groove 85. This causes the clamping plate 81 to drive the pad 87 to move away from the outer box 3, thereby releasing the clamping and fixing of the outer box 3. This makes it easier to remove the outer box 3 from the inside of the support box 2 for subsequent maintenance and inspection of the motion sensor 9.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An alarm-enabled intelligent safety belt device for large-span prefabricated construction, comprising a safety belt body (1), characterized in that: One side of the safety belt body (1) is fixedly connected with a support box (2), the inside of the support box (2) is clamped with an outer box (3), the inside of the outer box (3) is fixedly connected with a motor (4), and the inside of the outer box (3) is movably connected with a transmission assembly; Wherein, the transmission assembly contains a first gear (51), a second gear (52) and a third gear (53), the inner wall of the first gear (51) is annularly provided with two first arc grooves (54), and the inner wall of the third gear (53) is annularly provided with a vertical groove (55), a second arc groove (56) and a third arc groove (57); The inside of the first gear (51) is movably connected with a first circular rod (6), the inside of the third gear (53) is movably connected with a moving assembly (7), the inside of the support box (2) is movably connected with a clamping assembly (8), the inside of the outer box (3) is provided with a motion sensor (9), and one side of the outside of the outer box (3) is fixedly connected with a buzzer alarm (11); The clamping assembly (8) contains a clamping plate (81), both sides of the inside of the support box (2) are movably connected with a first limiting plate (82), and the top end of the first limiting plate (82) is fixedly connected with an inclined block (83); The output shaft end of the motor (4) is fixedly connected with the second gear (52), and the second gear (52) and the third gear (53) are both one side with teeth and the other side with smoothness, and the second gear (52) and the third gear (53) are symmetrically arranged on both sides of the first gear (51); The first arc groove (54) has an arc of one hundred and eighty degrees, and the top end of the first circular rod (6) is provided with a connecting column movably clamped in the first arc groove (54); The bottom end of the first circular rod (6) is provided with a square plate, and the inner wall of the outer box (3) is provided with a square groove for circumferentially limiting the square plate at the bottom of the first circular rod (6); The inside of the outer box (3) is provided with a button (10) located directly below the first circular rod (6), the first circular rod (6) is connected with the connecting column, and the first circular rod (6) is connected with the connecting column. 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The alarmable intelligent safety belt device for long-span fabricated construction of claim 1, characterized in that: Both opposite sides of the first limiting plate (82) are fixedly connected with the second limiting plate (84), one end of the second limiting plate (84) close to the clamping plate (81) is provided with an inclined slot (85), the bottom end of the second limiting plate (84) is fixedly connected with the second elastic sheet (86), and the second limiting plate (84) is elastically connected with the supporting box (2) through the second elastic sheet (86).

3. The alarmable intelligent safety belt device for long-span fabricated construction of claim 1, characterized in that: Both opposite ends of the inclined block (83) are beveled, both ends of the supporting box (2) are threadedly connected with the bolt assembly (12), and the bottom end of the inclined block (83) is provided with an internal thread matched with the bolt assembly (12).

4. The alarmable intelligent safety belt device for long-span fabricated construction of claim 2, characterized in that: Both ends of the bottom of the clamping plate (81) are provided with protrusions movably clamped in the inclined slot (85), and the two inclined slots (85) are opposite to each other; The side of the clamping plate (81) close to the outer box (3) is provided with a gasket (87), the gasket (87) is made of rubber material, and the gasket (87) is in abutment with the side wall of the outer box (3) in the initial state.

5. The alarmable intelligent safety belt device for long-span fabricated construction in place according to claim 1, characterized in that: The top end of the second circular rod (71) penetrates through the outer wall of the outer box (3) and is flush with the top of the outer box (3), and the top of the limiting block (72) is provided with an anti-skid groove. 6.The alarmable intelligent safety belt device for long-span fabricated construction of claim 5, characterized in that: The bottom of the limiting block (72) is fixedly connected with the first elastic sheet (73), the first elastic sheet (73) is fixedly connected to the outer box (3), and the first elastic sheet (73) is used for pressing the limiting block (72) and keeping the limiting block (72) in the upward moving trend.

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