Detection switch structure of safety belt hook, safety belt hook and safety belt

Abstract

The utility model discloses a detection switch structure of a safety belt hook, which comprises an inner base plate and an outer base plate which can be buckled with each other, and the opposite sides of the inner base plate and the outer base plate are oppositely provided with positioning grooves used for being matched with the hook; an arc-shaped bent touch plate is relatively movably arranged on the inner base plate, and a reset elastic mechanism is arranged between the touch plate and the inner base plate, so that the touch plate can be matched with the inner side of the hanging part of the hook at intervals; and a movable contact and a static contact which are correspondingly arranged are arranged between the touch plate and the inner substrate or the outer substrate. The detection switch structure has the advantages of being reasonable in structural design, suitable for a hook, convenient to transform an existing hook and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of safe operation, and particularly to a detection switch structure for a safety belt hook, a safety belt hook and a safety belt. Background Art

[0002] Working at heights on utility poles and towers is a challenging task. When workers are performing high-altitude operations, they need to stand at relatively high positions. Once an accidental fall occurs, the consequences will be unthinkable. Safety belts can help high-altitude workers complete tasks safely and reliably. The life safety of high-altitude workers directly depends on the performance of the safety belts they use. In addition, the correct and standardized use of safety belts will also affect the protective effect of safety belts. Through research and investigation of accidents and injuries, it can be found that the most important reason is the incorrect use of safety belts. In recent years, researchers have begun to focus on integrating intelligent technologies into the safety rope hooks of high-altitude workers, including using sensors in safety engineering. Intelligent hooks can provide real-time data to help users and supervisors better understand the health status of the hooks and timely detect potential problems. However, the equipment remains powered on continuously in the standby state, greatly reducing the battery life of the device.

[0003] Therefore, the inventor considered designing an active warning system. By setting a contact detection switch on the hook of the safety belt to control the power on and off of the wireless transmission module on the safety belt, once the hook is mounted according to the standard operation, the contact detection switch will be pressed to connect the wireless transmission module. According to whether the wireless transmission module emits a signal, the use status of the safety belt hook can be judged, and then a warning signal can be issued. Therefore, how to provide a detection switch structure suitable for the hook has become an urgent problem to be solved. Summary of the Utility Model

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: how to provide a detection switch structure with reasonable structural design, suitable for the hook and convenient for transforming the existing hook, as well as a safety belt hook and a safety belt with the detection switch structure.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A detection switch structure for a safety belt hook, characterized in that it includes an inner base and an outer base that can be mutually buckled, and positioning grooves for cooperating with the hook are oppositely arranged on the opposite sides of the inner base and the outer base; an arc-shaped bent touch plate is movably arranged on the inner base, and a reset elastic mechanism is arranged between the touch plate and the inner base, so that the touch plate can be spaced and cooperate with the inner side of the mounting part of the hook; a moving contact and a static contact are correspondingly arranged between the touch plate and the inner base or the outer base.

[0007] When in use, the inner base and the outer base are snap - fixed on the hook, and the touch plate is spaced and fitted inside the hanging part of the hook. Since there is a space between the touch plate and the hook, when the hook is in the hanging state, the touch plate is pressed and approaches the hook, so that conduction is formed between the moving contact and the static contact. The above - mentioned switch has a reasonable structure. For hooks of the same model, only by fixing the inner base and the outer base on the hook, the existing hooks can be modified.

[0008] Furthermore, the inner base and the outer base are arranged in an arc - shaped bend along the position of the hanging part of the hook. The inner base has an installation groove arranged along the length direction, and the installation groove penetrates towards the arc - shaped inner side of the inner base; the touch plate is arranged in the installation groove through the reset elastic mechanism.

[0009] Furthermore, the reset elastic mechanism is a spiral spring arranged between the inner base and the touch plate.

[0010] Furthermore, a plurality of the reset elastic mechanisms are arranged at intervals along the length direction of the touch plate.

[0011] Furthermore, there are multiple pairs of the moving contacts and the static contacts arranged in parallel between the inner base and the touch plate, and the moving contacts and the static contacts are arranged at intervals along the length direction of the touch plate.

[0012] In this way, through multiple pairs of the moving contacts and the static contacts arranged in parallel, as long as one pair of the moving contacts and the static contacts come into contact, the power supply of the wireless transmission module can be turned on.

[0013] Furthermore, the inner base includes a detachable outer shell and an inner substrate. The installation groove runs through the outer shell, and the width and length of the inner substrate are respectively greater than the width and length of the installation groove; the touch plate is located between the inner substrate and the outer shell, and has a protrusion in the middle that matches the installation groove; the reset elastic mechanism is located between the inner substrate and the touch plate.

[0014] Furthermore, the positioning groove runs through the inner base and the outer base along a straight - line direction. The static contact is located in the positioning groove of the outer base and can contact the hook; the touch plate is bent from an elastic metal plate and forms a moving contact that can contact the hook.

[0015] Since the positioning groove runs through along a straight - line direction, the outer base and the inner base can be applied to all hooks with straight - line segments. Usually, hooks are made of metal materials. Once the touch plate contacts the hook, the conduction between the moving contact and the static contact can be realized by using the hook.

[0016] Further, the static contact includes a metal seat integrally injection-molded in the outer base. The middle of the metal seat has a threaded hole penetrating along the radial direction of the positioning groove, and the outer base has a bolt hole coaxially penetrating with the threaded hole; a contact bolt penetrating toward the positioning groove is fitted on the metal seat.

[0017] A seat belt hook, characterized in that it includes a hook body and the detection switch structure as described above, and the inner base and the outer base of the detection switch structure are fixedly fastened to the hook body.

[0018] A seat belt, characterized in that it includes the seat belt hook as described above.

[0019] In summary, the detection switch structure of the present utility model has the advantages of reasonable structural design, being applicable to hooks, and facilitating the transformation of existing hooks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1.

[0021] Figure 2 It is an exploded structural schematic diagram of the detection switch structure.

[0022] Figure 3 It is a schematic diagram of the assembly structure of Embodiment 2.

[0023] Figure 4 For Figure 3 partial sectional structural schematic diagram of. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described in detail below with reference to the embodiments.

[0025] Embodiment 1: A seat belt hook, as Figure 1 shown, includes a hook body 5 and a detection switch structure. The detection switch structure includes an inner base 1 and an outer base 2 which are fastened to each other and arranged on the hook body 5. Opposite sides of the inner base 1 and the outer base 2 are provided with positioning grooves for cooperating with the hook body; an arc-shaped bent touch plate 3 is movably arranged on the inner base 1, and a reset elastic mechanism is arranged between the touch plate 3 and the inner base 1 so that the touch plate 3 can be spaced and cooperate with the inner side of the hanging part of the hook; a moving contact and a static contact are correspondingly arranged between the touch plate 3 and the inner base 1 or the outer base 2.

[0026] As Figure 2As shown, the inner base 1 and the outer base 2 are arranged in an arc shape along the position of the hanging part of the hook. The inner base 1 has a mounting groove arranged along the length direction, and the mounting groove penetrates towards the inner arc side of the inner base 1; the touch plate 3 is arranged in the mounting groove through the reset elastic mechanism. Specifically, the inner base 1 includes a detachable outer shell 11 and an inner substrate 12, the mounting groove is arranged through the outer shell 11, and the width and length of the inner substrate 12 are respectively greater than the width and length of the mounting groove; the touch plate 3 is located between the inner substrate 12 and the outer shell 11, and has a protrusion in the middle that matches the mounting groove; the reset elastic mechanism is located between the inner substrate 12 and the touch plate 3, and a plurality of them are arranged at intervals along the length direction of the touch plate 3. There are multiple pairs of moving contacts and static contacts arranged in parallel between the inner base 1 and the touch plate 3, and the moving contacts and static contacts are arranged at intervals along the length direction of the touch plate 3. Through multiple pairs of the moving contacts and static contacts arranged in parallel, as long as a pair of moving contacts and static contacts are in contact, the power supply of the wireless transmission module can be turned on. In this embodiment, the reset elastic mechanism is a spiral spring arranged between the inner substrate 12 and the touch plate 3.

[0027] During use, the inner base and the outer base are fastened and fixed on the hook, and the touch plate is spaced and cooperated inside the hanging part of the hook. Since there is a space between the touch plate and the hook, when the hook is in the hanging state, the touch plate is pressed and approaches the hook, so that conduction is formed between the moving contact and the static contact. The above switch has a reasonable structure. For hooks of the same model, only by fixing the inner base and the outer base on the hook, the existing hook can be modified.

[0028] Embodiment 2: In the detection switch structure of Embodiment 1, the inner base 1 and the outer base 2 are arranged in an arc shape along the hook body 5. Both sides of the inner base 1 and the outer base 2 facing each other have grooves matching the hook body, and are fastened on the hook body 5. Although this structure can modify the existing hook, it is necessary to separately mold for hooks with different structures, so that the grooves and arcs of the inner base 1 and the outer base 2 are adapted to the hook, increasing the modification cost. In addition, since the inner base 1 is in the hanging position of the hook, it is easy to damage the plastic-made inner base 1, affecting the service life.

[0029] To this end, in this embodiment, a seat belt hook includes a hook body 5 and a detection switch structure, the detection switch structure includes an inner base 1 and an outer base 2 that are mutually interlocked and arranged on the hook body 5, and the inner base 1 and the outer base 2 are oppositely provided with a positioning groove for matching the hook body; the inner base 1 is relatively movably provided with an arc-shaped touch plate 3, and a reset elastic mechanism is provided between the touch plate 3 and the inner base 1, so that the touch plate 3 can be spaced to match the inner side of the hook's mounting part; the touch plate 3 and the inner base 1 or the outer base 2 have correspondingly arranged moving contacts and static contacts. Figure 3 and Figure 4 As shown, the positioning groove is arranged on the inner base 1 and the outer base 2 in a straight line direction, and the static contact is located in the positioning groove of the outer base 2 and can contact the hook; the touch plate 3 is formed by bending an elastic metal plate and forming a moving contact that can contact the hook. The touch plate 3 and the inner base 1 are integrally injection molded. The static contact includes a metal seat integrally injection molded in the outer base 2, and the middle part of the metal seat has a threaded hole arranged radially through the positioning groove, and the outer base 2 has a bolt hole arranged coaxially with the threaded hole; the metal seat is matched with a contact bolt 4 arranged to pass through the positioning groove.

[0030] In this way, the metal seat can be abutted against the hook body 5 through the contact bolt 4 to ensure that the two can be in reliable contact. At the same time, for hook bodies 5 with different hook handle diameters, the contact bolt 4 can also be used as a fastening bolt to fix the outer base 1 and the inner base 2 on the hook body 5, so as to adapt to the modification and use of hook bodies 5 with different diameters, greatly reducing the modification cost.

[0031] This embodiment is suitable for a hook body 5 made of conductive metal. When the touch plate 3 is under pressure, it will contact the hook body 5. Since the static contact on the outer base is in contact with the hook body 5, the two can achieve conduction through contact with the hook body 5. After the metal spring is subjected to force, it will directly transfer the pressure to the hook body 5, thereby reducing the probability of damage.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection switch structure for a seat belt hook, characterized in that: The invention comprises an inner base (1) and an outer base (2) which can be interlocked, and a positioning groove for matching with a hook is arranged opposite to each other on one side of the inner base (1) and the outer base (2); a touch plate (3) bent in an arc shape is arranged on the inner base (1) so as to be relatively movable, and a resetting elastic mechanism is arranged between the touch plate (3) and the inner base (1) so that the touch plate (3) can be matched with the inner side of the mounting part of the hook at intervals; and corresponding moving contacts and static contacts are arranged between the touch plate (3) and the inner base (1) or the outer base (2).

2. The detection switch structure of the seat belt hook according to claim 1, characterized in that: The inner base (1) and the outer base (2) are arranged in an arc shape along the position where the mounting portion of the hook is located; the inner base (1) has a mounting groove arranged along the length direction, and the mounting groove is arranged to pass through the inner side of the arc of the inner base (1); the touch plate (3) is arranged in the mounting groove through the resetting elastic mechanism.

3. The detection switch structure of the seat belt hook according to claim 2, characterized in that: The resetting elastic mechanism is a coil spring arranged between the inner base (1) and the touch plate (3).

4. The detection switch structure of the seat belt hook according to claim 2, characterized in that: A plurality of the resetting elastic mechanisms are arranged at intervals along the length direction of the touch plate (3).

5. The detection switch structure of the safety belt hook according to claim 2, characterized in that: A plurality of pairs of movable contacts and stationary contacts are arranged in parallel between the inner base (1) and the touch plate (3), and the movable contacts and stationary contacts are arranged at intervals along the length direction of the touch plate (3).

6. The detection switch structure of the safety belt hook according to claim 2, characterized in that: The inner base (1) comprises an outer shell (11) and an inner base plate (12) which are detachably connected, the mounting groove is arranged through the outer shell (11), and the width and length of the inner base plate (12) are respectively greater than the width and length of the mounting groove; the touch plate (3) is located between the inner base plate (12) and the outer shell (11), and has a protrusion in the middle that matches the mounting groove; and the resetting elastic mechanism is located between the inner base plate (12) and the touch plate (3).

7. The detection switch structure of the seat belt hook according to claim 1, characterized in that: The positioning groove is arranged on the inner base (1) and the outer base (2) in a straight line direction, the static contact is located in the positioning groove of the outer base (2) and can contact the hook; the touch plate (3) is formed by bending an elastic metal plate and forms a moving contact that can contact the hook.

8. The detection switch structure of the safety belt hook according to claim 7, characterized in that: The static contact comprises a metal seat integrally injection-molded in the outer base (2); a threaded hole is provided in the middle of the metal seat and is radially penetrated along the positioning groove; a bolt hole is provided on the outer base (2) and is coaxially penetrated with the threaded hole; and a contact bolt (4) is provided on the metal seat and is penetrated toward the positioning groove.

9. A seat belt hook, characterized in that: It comprises a hook body (5) and a detection switch structure according to any one of claims 1 to 8, wherein the inner base (1) and the outer base (2) of the detection switch structure are fixed on the hook body (5) by interlocking.

10. A safety belt, characterized in that: Comprising the seat belt hook as claimed in claim 9.

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