Safety belt hook and state monitoring mechanism thereof

Abstract

The utility model provides a safety belt hook and its status monitoring mechanism, the safety belt hook status monitoring mechanism comprises a lantern ring, a snap ring and a pressure-bearing protective shell, the lantern ring is sleeved at the tip of the hook, the snap ring is hinged with one end of the lantern ring and is nested around the outer side of the hook, the pressure-bearing protective shell is movably connected with the other end of the lantern ring, and the pressure-bearing protective shell is movably connected with the lantern ring. And a pressure-sensitive device which is opposite to the hook is arranged at the bottom of the pressure-sensitive cover plate which covers the inner side of the hook and can be propped against or separated from the hook. The state monitoring mechanism provided by the utility model can be matched with the conventional mainstream hook in the market and is used for realizing a function of monitoring the hanging state of the safety belt hook; and the corresponding carrying mode does not need to additionally process the hook, so that the assembling mode is simple and convenient, and the risk of damaging the structural strength of the hook main body does not exist.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat belt equipment, and particularly relates to a seat belt hook and its state monitoring mechanism. Background Art

[0002] The seat belt hook is also called the "master lock"; it is a most commonly used connecting tool for connecting ropes, flat belts with anchor points, equipment, etc. When in use, the safety rope is tied to the hook. However, occasionally due to non-standard operations, the safety rope may not be fully hung into the hook, ultimately causing a personnel falling accident.

[0003] Therefore, there is a demand for real-time monitoring of the hanging state of seat belt hooks in many current high-altitude operation industries (especially the construction industry). Based on this demand, there have been many seat belt hook products with related intelligent monitoring functions on the market. For example, as shown in the patent No. 202323259536.9 "A Seat Belt Hook Capable of Detecting Usage Status"; however, such seat belt hook products with intelligent state monitoring generally have a high selling price and it is difficult to achieve large-scale replacement. Installing an external state monitoring mechanism on the basis of traditional old-type hooks has become a more mainstream and feasible option; for example, the hook body and the hook housing sleeved on the hook body proposed in the patent No. 201922174123.8 "A Seat Belt Hook and Seat Belt Capable of Monitoring Hanging State". However, almost all current external monitoring mechanism solutions require additional processing operations such as drilling on the original hook, which is inconvenient to use. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a seat belt hook and its state monitoring mechanism to solve the mounting problem of the external monitoring mechanism of the seat belt hook.

[0005] The utility model realizes the above technical purpose through the following technical means.

[0006] A state monitoring mechanism for a seat belt hook, comprising:

[0007] A collar, sleeved at the tip of the hook;

[0008] A snap ring, hinged to one end of the collar and nested around the outside of the hook;

[0009] A pressure-bearing housing, movably connected to the other end of the collar and covering the inside of the hook, capable of abutting against or disengaging from the hook; a pressure sensor device opposite to the hook is provided at the bottom.

[0010] Further, the pressure-bearing housing is slidably connected to the collar.

[0011] Further, a locking bolt is connected to the hinge joint between the collar and the snap ring.

[0012] Furthermore, one end of the collar is provided with a slot, and the pressure-bearing protective shell is slidably inserted into the slot.

[0013] Furthermore, a return spring for resetting the pressure sensor device is connected between the collar and the pressure-bearing protective shell.

[0014] Furthermore, there are a pair of return springs, which are symmetrically arranged on both sides of the hook.

[0015] Furthermore, a support is provided at the bottom of the pressure-bearing protective shell for abutting against the hook to bear the pressure after the pressure sensor device is triggered by pressure.

[0016] Furthermore, the pressure sensor device includes a PCB board and a micro switch connected thereto, and the micro switch abuts against the hook.

[0017] A seat belt hook is provided with the above-mentioned status monitoring mechanism.

[0018] Furthermore, the seat belt hook includes a hook portion, a locking piece and a safety mechanism; the safety mechanism includes a safety button and a safety rod provided on the locking piece, and a blocking portion is provided on the safety button; the blocking portion blocks the movement path of the safety rod under normal conditions and can be moved away after the safety button is pressed.

[0019] The beneficial effects of the present utility model are as follows:

[0020] (1) The present utility model provides a seat belt hook and its status monitoring mechanism, wherein the status monitoring mechanism can be adapted to conventional mainstream hooks on the market to realize the monitoring function of the mounting status of the seat belt hook; and the corresponding mounting method does not require additional processing of the hook, which is not only simple and convenient in the assembly method, but also there is no risk of damaging the structural strength of the hook body.

[0021] (2) The seat belt hook status monitoring mechanism proposed by the present utility model uses a micro switch as a relevant detection element, which has high sensitivity and stable monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a combined state diagram of the seat belt hook and its status monitoring mechanism of the present utility model;

[0023] Figure 2 is a structural diagram of the seat belt hook;

[0024] Figure 3 is a structural diagram of the seat belt hook status monitoring mechanism of the present utility model;

[0025] Figure 4 is an installation diagram of the seat belt hook status monitoring mechanism of the present utility model;

[0026] Figure 5 This is a structural diagram of the monitoring component in the safety belt hook status monitoring mechanism of the present utility model;

[0027] Figure 6 This is a schematic diagram of the working principle of the safety belt hook status monitoring mechanism of the present utility model.

[0028] Reference numerals:

[0029] 1 - Hook; 11 - Hook part; 2 - Insurance button; 21 - Insurance shaft;

[0030] 22 - Insurance spring; 3 - Locking piece; 31 - Locking piece shaft; 32 - Locking piece spring;

[0031] 33 - Safety rod; 4 - Monitoring mechanism; 41 - Collar; 42 - Snap ring;

[0032] 43 - Locking bolt; 44 - Slot; 5 - Pressure-bearing housing; 51 - Return spring;

[0033] 52 - Support; 6 - Sensor component; 61 - PCB board; 62 - Microswitch. Specific embodiments

[0034] The embodiments of the present utility model will be described in detail below. The examples of the embodiments shown are illustrated in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0035] As Figure 1 shown, the hook 1 and the monitoring mechanism 4 are independent split structures and can be combined together by a simple snap connection method.

[0036] Among them, as Figure 2 shown, a structure of a hook 1 specifically adopted by the present utility model is shown, including a hook part 11 and a locking piece 3 connected in cooperation with the hook part 11; the locking piece 3 is swingably connected to the hook 1 through a locking piece shaft 31 and is provided with a locking piece spring 32 for reset. A safety mechanism is provided on the hook 1 shown to limit the opening and closing of the locking piece 3; including an insurance button 2 and a safety rod 33; wherein the insurance button 2 is rotatably connected to the hook 1 through an insurance shaft 21 and is provided with an insurance spring 22 for reset; the safety rod 33 is fixed on the locking piece 3 and can swing together with the locking piece 3; one end of the insurance button 2 is provided with a blocking portion. In the normal state where the insurance button 2 is not pressed, the blocking portion blocks the swinging path of the safety rod 33, thereby restricting the opening of the locking piece 3; on the contrary, only by pressing the insurance button 2 to move the blocking portion can the locking piece 3 be smoothly pressed and opened.

[0037] As Figure 3 shown in the figure, the state monitoring mechanism of the seat belt hook proposed by the present utility model mainly includes two parts: an installation component and a working component.

[0038] As Figure 4 shown, the installation component includes a collar 41 and a snap ring 42, which are connected by a locking bolt 43 and can swing relative to each other around the locking bolt 43 during assembly. The collar 41 is used to be sleeved at the tip of the hook part 11 of the hook 1; the snap ring 42 is of an arc-shaped structure and is provided with a slot on the inner side for surrounding and nesting on the outer side of the hook part 11. After assembly, the above monitoring mechanism 4 is firmly fixed on the hook 1 by tightening the locking bolt 43.

[0039] As Figure 3 and Figure 5 shown, the working component includes a pressure-bearing housing 5 and a sensor component 6 arranged in the pressure-bearing housing 5. One end of the collar 41 away from the locking bolt 43 is provided with a slot 44, and the pressure-bearing housing 5 can be slidably inserted into the slot 44 (able to reciprocally slide along the Figure 5 arrow direction). A pair of return springs 51 are symmetrically arranged between the pressure-bearing housing 5 and the collar 41 to pull up the pressure-bearing housing 5 to prevent the sensor component 6 from being triggered.

[0040] As Figure 6 shown, when the monitoring mechanism 4 is mounted on the hook 1, the pressure-bearing housing 5 covers the inner side of the hook part 11 of the hook 1. The top of the pressure-bearing housing 5 is used to bear the safety rope hung by the hook 1; the bottom is provided with a support 52 and a sensor component 6. The support 52 is opposite to the hook part 11 for protecting the sensor component 6; the sensor component 6 includes a PCB board 61 and electronic components such as a micro switch 62, a battery, and a signal transmitter arranged on the PCB board 61. The micro switch 62 abuts against the hook part 11, where:

[0041] 1) When the pressure-bearing housing 5 is not pressed by an external force, the micro switch 62 is not triggered under the action of the return spring 51, and a certain suspended distance is maintained between the support 52 and the hook part 11;

[0042] 2) After the pressure-bearing housing 5 is pressed by an external force, the micro switch 62 is squeezed and triggered, and then the sensor component 6 emits a corresponding monitoring signal outward; the support 52 abuts against the hook part 11 to share and bear the external pressure, preventing the electronic components such as the micro switch 62 from being damaged by excessive extrusion.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0044] The present utility model is not limited to the above embodiments. Without departing from the essence of the present utility model, any obvious improvements, substitutions or deformations that those skilled in the art can make all fall within the protection scope of the present utility model.

Claims

1. A seat belt hook status monitoring mechanism, characterized in that: Comprising: A collar (41) sleeved at the tip of the hook; A snap ring (42) hinged to one end of the collar (41) and nested around the outside of the hook; A pressure-bearing protective shell (5) movably connected to the other end of the collar (41) and covering the inside of the hook, capable of abutting against or disengaging from the hook; a pressure sensor device opposite to the hook is provided at the bottom.

2. The seat belt hook status monitoring mechanism according to claim 1, wherein: A sliding connection is provided between the pressure-bearing protective shell (5) and the collar (41).

3. The seat belt hook status monitoring mechanism according to claim 1, characterized in that: A locking bolt (43) is connected at the hinge between the collar (41) and the snap ring (42).

4. The seat belt hook status monitoring mechanism according to claim 2, characterized in that: A slot (44) is provided at one end of the collar (41), and the pressure-bearing protective shell (5) is slidably inserted into the slot (44).

5. The seat belt hook status monitoring mechanism according to claim 4, wherein: A return spring (51) for resetting the pressure sensor device is connected between the collar (41) and the pressure-bearing protective shell (5).

6. The seat belt hook status monitoring mechanism according to claim 5, characterized in that: A pair of the return springs (51) are provided and symmetrically arranged on both sides of the hook.

7. The seat belt hook status monitoring mechanism according to claim 1, characterized in that: A support (52) is provided at the bottom of the pressure-bearing protective shell (5) for abutting against the hook to bear the pressure after the pressure sensor device is triggered by pressure.

8. The seat belt hook status monitoring mechanism according to claim 1, characterized in that: The pressure sensor device includes a PCB board (61) and a micro switch (62) connected thereto, wherein the micro switch (62) abuts against the hook.

9. A seat belt hook, characterized in that: A state monitoring mechanism as described in any one of claims 1 to 8 is provided.

10. The seat belt hook according to claim 9, wherein: Comprising a hook portion (11), a locking piece (3) and a safety mechanism; the safety mechanism includes a safety button (2) and a safety rod (33) provided on the locking piece (3), and a blocking portion is provided on the safety button (2); the blocking portion blocks the movement path of the safety rod (33) under normal conditions and can be moved away after the safety button (2) is pressed.

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