A safety device with an inertia safety mechanism and a performance detection method thereof

Abstract

The present invention discloses a safety device with an inertial safety mechanism and a performance detection method thereof, and belongs to the field of safety technology. The safety device includes a housing, an inertial safety mechanism, an adjusting mechanism and an actuating mechanism. An overload chamber, an adjusting chamber and an actuating chamber are provided in the housing. The inertial safety mechanism includes an inertial body, a pin and a first spring, and the inertial body can be slidably inserted in the overload chamber. The adjusting mechanism includes an adjusting column and a second spring, and one end of the adjusting column is perpendicular to and abuts against the outer peripheral wall of the other end of the pin. The actuating mechanism includes a slider, an actuating pin and a third spring, and the slider can be slidably inserted in the actuating chamber, and the outer peripheral wall of the slider has an arc-shaped groove, and the slider is configured such that when the inertial body slides under overload and separates from the adjusting column, the slider pushes the adjusting column to move, and the actuating pin extends out of the housing. A safety device with an inertial safety mechanism provided in an embodiment of the present invention can adapt to different overload conditions, thereby increasing the safety function of the safety device.

Description

Technical Field

[0001] The present invention belongs to the technical field of insurance, and more specifically, relates to an insurance device with an inertial insurance mechanism and a performance detection method thereof. Background Art

[0002] The inertial safety mechanism is generally composed of an inertial body, a spring and a pin. Normally, the spring pushes the inertial body so that the pin extends out of the outer end of the inertial safety mechanism. When the inertial body senses an overload, the overload force overcomes the spring resistance and drives the pin to retract, thereby realizing the safety function. The inertial safety mechanism does not require the control system to issue a release command to it. It can release the insurance only by relying on the overload environment, and is independent of the control system.

[0003] However, during use, the separate inertial safety mechanism can only complete the action (i.e., realize the safety function) under specific overload conditions because the mass of the inertial body and the spring coefficient are constant. It cannot adapt to different overload conditions, resulting in a single safety function. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a safety device with an inertial safety mechanism and a performance detection method thereof, the purpose of which is to adjust the friction force of the adjusting column on the pin shaft by replacing the second spring, so as to adapt to different overload conditions, thereby increasing the safety function of the safety device.

[0005] In a first aspect, the present invention provides a safety device having an inertia safety mechanism, the safety device comprising a housing, an inertia safety mechanism, an adjustment mechanism and an action mechanism;

[0006] The housing has an overload chamber, an adjustment chamber and an action chamber which are connected in sequence, and the adjustment mechanism is detachably installed in the adjustment chamber;

[0007] The inertia safety mechanism comprises an inertia body, a pin shaft and a first spring, wherein the inertia body is slidably inserted into the overload cavity, one end of the pin shaft is fixed to one end of the inertia body, and two ends of the first spring respectively abut against the other end of the inertia body and the inner wall of the housing to drive the inertia body to slide;

[0008] The adjusting mechanism comprises an adjusting column and a second spring, one end of the adjusting column is perpendicular to and abuts against the outer peripheral wall of the other end of the pin shaft, the outer peripheral wall of the adjusting column has an outer flange, and the outer flange can be slidably inserted into the adjusting cavity, the second spring is sleeved on one end of the adjusting column, and the two ends of the second spring are respectively abutted against the outer flange and the inner wall of the shell to drive the adjusting column to move toward the action cavity;

[0009] The action mechanism includes a slider, an action pin and a third spring. The slider can be slidably inserted in the action cavity. The outer peripheral wall of the slider has an arc-shaped groove. The other end of the adjusting column can be movably inserted in the arc-shaped groove. One end of the action pin is fixedly connected to one end of the slider, and the action pin extends along the sliding direction of the slider. The other end of the action pin passes through the shell. The two ends of the third spring respectively abut against the other end of the slider and the inner wall of the shell to drive the slider to slide. The slider is configured such that when the inertial body slides under overload and the pin shaft is separated from the adjusting column, the slider pushes the adjusting column to move, and the action pin extends out of the shell.

[0010] Optionally, a first sealing plate is inserted on the outer wall of the shell, and the first sealing plate and the shell are detachably connected to seal the action chamber, and one end of the third spring abuts against the first sealing plate.

[0011] Optionally, the first sealing plate has a guide rod on a side facing the sliding block, and the third spring is sleeved on the guide rod.

[0012] Optionally, the shell has a tooling hole, the tooling hole is connected to the overload chamber, the axis of the tooling hole is consistent with the sliding direction of the inertial body, and the tooling hole is opposite to the pin shaft.

[0013] Optionally, a tooling shaft can be movably inserted into the tooling hole to squeeze and drive the pin shaft to move.

[0014] Optionally, a second sealing plate is inserted on the outer wall of the shell, and the second sealing plate and the shell are detachably connected to seal the overload chamber, and one end of the first spring abuts against the second sealing plate.

[0015] Optionally, a positioning block is inserted in the adjustment cavity, the positioning block has a conducting hole, and the other end of the adjustment column can be slidably inserted in the conducting hole.

[0016] Optionally, the shell has a limiting hole, the limiting hole is connected to the overload cavity, an electromagnetic pin puller is inserted in the limiting hole, and the output end of the electromagnetic pin puller is used to abut against the outer wall of the inertial body to limit the sliding of the inertial body.

[0017] Optionally, the shell has a mounting hole, the mounting hole is connected to the action chamber, a third sealing plate is inserted in the mounting hole, the third sealing plate is opposite to the adjustment column, and the third sealing plate and the adjustment column are respectively located on both sides of the action chamber.

[0018] In a second aspect, the present invention provides a performance detection method of a safety device having an inertia safety mechanism, the performance detection method is based on the safety device described in the first aspect, and the performance detection method comprises:

[0019] The safety device is placed in a centrifuge, and the sliding direction of the inertial body is arranged along the centrifugal force direction of the centrifuge, and the first spring is located outside the inertial body;

[0020] The centrifugal force of the centrifuge is adjusted to simulate different overload forces on the inertial body until the actuating pin is actuated and extends out of the housing.

[0021] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0022] For a safety device provided by an embodiment of the present invention, in a non-overload state, the first spring drives the inertial body to the top of the overload chamber through elastic force. At this time, the left end of the adjustment column is perpendicular to and against the pin shaft (the adjustment column forms a friction force on the pin shaft, hindering the inertial body from moving downward, and the adjustment column cannot move to the left), and under the action of the second spring, the right end of the adjustment column is inserted into the arc groove of the slider, and the action pin cannot extend out of the housing at this time.

[0023] In the overload state, the overload force on the inertial body is greater than the sum of the elastic force of the first spring and the friction force formed by the adjusting column on the pin in the horizontal direction. At this time, the inertial body moves downward, causing the inertial body to separate from the adjusting column. Then the elastic force of the third spring on the slider and the adjusting column generates a horizontal component force L 1 Greater than the elastic force L exerted by the second spring on the adjustment column 2 , thereby driving the adjustment column to move left, and the slider is pushed upward, so that the action pin extends out of the housing, thereby realizing the safety function. In this process, the inertial body must not only overcome the elastic force of the first spring when moving after overloading, but also overcome the friction force generated by the adjustment column squeezing the pin in the horizontal direction (this friction force is related to L 1 -L 2 Since the mass of the inertial body and the stiffness coefficient of the first spring are constant, the second spring can be replaced to adjust L 2 The size of the friction force can be adjusted, and then the overload force of the action pin starting can be adjusted, so as to adapt to different overload conditions.

[0024] That is to say, the safety device with an inertial safety mechanism provided by the embodiment of the present invention can adjust the friction force of the adjusting column on the pin shaft by replacing the second spring, so as to adapt to different overload conditions and further enhance the safety function of the safety device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a structural schematic diagram of a safety device with an inertia safety mechanism provided by an embodiment of the present invention in a non-overloaded state;

[0026] Figure 2 is a schematic structural diagram of a housing provided by an embodiment of the present invention;

[0027] Figure 3 is a cross-sectional view of a housing provided by an embodiment of the present invention;

[0028] Figure 4 is an exploded view of the inertia safety mechanism provided by an embodiment of the present invention;

[0029] Figure 5 is an exploded view of an adjustment mechanism provided by an embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of an action mechanism provided by an embodiment of the present invention;

[0031] Figure 7 is a cross-sectional view of an action mechanism provided by an embodiment of the present invention;

[0032] Figure 8 It is a structural schematic diagram of a safety device with an inertia safety mechanism provided by an embodiment of the present invention in an overload state;

[0033] Fig. 9 It is a schematic diagram of driving and resetting the safety device provided by an embodiment of the present invention;

[0034] Fig.10 is a schematic diagram of the assembly of the electromagnetic pin puller provided by an embodiment of the present invention;

[0035] Fig.11 It is a flow chart of a performance detection method of a safety device with an inertia safety mechanism provided by an embodiment of the present invention;

[0036] Fig.12 It is a schematic diagram of performance detection of a safety device with an inertia safety mechanism provided by an embodiment of the present invention.

[0037] The symbols in the figure mean the following:

[0038] 1. Shell; 11. Overload chamber; 12. Adjustment chamber; 13. Action chamber; 14. First sealing plate; 141. Guide rod; 142. Connecting bolt; 15. Fixture hole; 151. Fixture shaft; 16. Second sealing plate; 17. Limit hole; 171. Electromagnetic pin puller; 18. Mounting hole; 19. Third sealing plate; 2. Inertia insurance mechanism; 21. Inertia body; 211. Annular groove; 22. Pin shaft; 23. First spring; 3. Adjustment mechanism; 31. Adjustment column; 311. Outer flange; 32. Second spring; 33. Positioning block; 4. Action mechanism; 41. Slider; 411. Arc groove; 42. Action pin; 43. Third spring; 5. Centrifuge. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Figure 1 FIG. 1 is a schematic diagram of the structure of a safety device with an inertial safety mechanism provided by an embodiment of the present invention in a non-overloaded state. Figure 1 As shown, the safety device comprises a housing 1 , an inertia safety mechanism 2 , an adjustment mechanism 3 and an action mechanism 4 .

[0041] Figure 2 is a schematic structural diagram of a housing provided by an embodiment of the present invention, Figure 3 is a cross-sectional view of a housing provided by an embodiment of the present invention, Figure 2 and Figure 3 As shown, the housing 1 has an overload chamber 11 , an adjustment chamber 12 and an action chamber 13 which are connected in sequence, and the adjustment mechanism 3 is detachably installed in the adjustment chamber 12 .

[0042] Figure 4 FIG. 1 is an exploded view of the inertia safety mechanism provided by an embodiment of the present invention. Figure 4 As shown, the inertial safety mechanism 2 includes an inertial body 21, a pin shaft 22 and a first spring 23. The inertial body 21 can be slidably inserted in the overload chamber 11, one end of the pin shaft 22 is fixed to one end of the inertial body 21, and the two ends of the first spring 23 are respectively against the other end of the inertial body 21 and the inner wall of the housing 1 to drive the inertial body 21 to slide.

[0043] Figure 5 is an exploded view of the adjustment mechanism provided by an embodiment of the present invention, such as Figure 5As shown, the adjustment mechanism 3 includes an adjustment column 31 and a second spring 32. One end of the adjustment column 31 is perpendicular to and abuts against the outer peripheral wall of the other end of the pin shaft 22. The outer peripheral wall of the adjustment column 31 has an outer flange 311, and the outer flange 311 can be slidably inserted in the adjustment cavity 12. The second spring 32 is sleeved on one end of the adjustment column 31, and the two ends of the second spring 32 are respectively abutted against the outer flange 311 and the inner wall of the shell 1 to drive the adjustment column 31 to move toward the action cavity 13.

[0044] Figure 6 is a schematic diagram of the structure of the action mechanism provided by an embodiment of the present invention, Figure 7 is a cross-sectional view of the action mechanism provided by an embodiment of the present invention, combined with Figure 6 and Figure 7 As shown, the action mechanism 4 includes a slider 41, an action pin 42 and a third spring 43. The slider 41 can be slidably inserted in the action chamber 13. The outer peripheral wall of the slider 41 has an arc-shaped groove 411. The other end of the adjusting column 31 can be movably inserted in the arc-shaped groove 411. One end of the action pin 42 is fixedly connected to one end of the slider 41, and the action pin 42 extends along the sliding direction of the slider 41. The other end of the action pin 42 passes through the shell 1. The two ends of the third spring 43 are respectively against the other end of the slider 41 and the inner wall of the shell 1 to drive the slider 41 to slide. The slider 41 is configured such that when the inertial body 21 slides under overload and the pin shaft 22 is separated from the adjusting column 31, the slider 41 pushes the adjusting column 31 to move, and the action pin 42 extends out of the shell 1.

[0045] For a safety device provided by an embodiment of the present invention, in a non-overload state (see Figure 1 ), the first spring 23 drives the inertial body 21 to the top of the overload chamber 11 through elastic force. At this time, the left end of the adjusting column 31 is perpendicular to and against the pin shaft 22 (the adjusting column 31 forms a friction force on the pin shaft 22, hindering the inertial body 21 from moving downward, and the adjusting column 31 cannot move to the left), and under the action of the second spring 32, the right end of the adjusting column 31 is inserted into the arc groove 411 of the slider 41, and the action pin 42 cannot extend out of the housing 1 at this time.

[0046] In the overload condition (see Figure 8 ), the overload force on the inertial body 21 is greater than the sum of the elastic force of the first spring 23 and the friction force formed by the adjusting column 31 on the pin 22 in the horizontal direction. At this time, the inertial body 21 will move downward, so that the inertial body 21 and the adjusting column 31 are separated. Then the horizontal component force L generated by the elastic force of the third spring 43 on the slider 41 and the adjusting column 31 1 is greater than the elastic force L generated by the second spring 32 on the adjustment column 31 2, thereby driving the adjustment column 31 to move left, and the slider 41 is pushed upward, so that the action pin 42 extends out of the housing 1, thereby realizing the safety function. In this process, the inertial body 21 moves after being overloaded, not only to overcome the elastic force of the first spring 23, but also to overcome the friction force generated by the adjustment column 31 squeezing the pin 22 in the horizontal direction (this friction force is related to L 1 -L 2 Since the mass of the inertial body 21 and the stiffness coefficient of the first spring 23 are constant, the L can be adjusted by replacing the second spring 32 of the adjustment mechanism 3. 2 The size of L 1 -L 2 The difference between the values ​​of ( ) can be used to adjust the friction force, thereby adjusting the overload force of the action pin 42 when starting, and thus adapting to different overload conditions.

[0047] That is to say, the safety device with an inertial safety mechanism provided by the embodiment of the present invention can adjust the friction force of the adjusting column 31 on the pin shaft 22 by replacing the second spring 32, so as to adapt to different overload conditions and thereby enhance the safety function of the safety device.

[0048] For example, the material of the adjusting column 31 may be 40Cr. The stroke of the third spring 43 is 8-10 mm.

[0049] Exemplarily, the overload chamber 11 , the regulating chamber 12 and the action chamber 13 may all be T-shaped structures.

[0050] See again Figure 6 and Figure 7 A first sealing plate 14 is inserted on the outer wall of the shell 1 , and the first sealing plate 14 and the shell 1 are detachably connected to seal the action chamber 13 , and one end of the third spring 43 abuts against the first sealing plate 14 .

[0051] In the above embodiment, the first sealing plate 14 can not only seal the action chamber 13 , but also facilitate installation and maintenance of the action mechanism 4 .

[0052] Exemplarily, the first sealing plate 14 is plugged with connecting bolts 142, and the first sealing plate 14 and the housing 1 are connected by the connecting bolts 142. In addition, both ends of the slider 41 are chamfered, so that the adjustment column 31 is pressed to move leftward when the slider 41 is installed or moved.

[0053] Exemplarily, the bottom end of the slider 41 has a positioning groove, and the top end of the third spring 43 is inserted into the positioning groove, thereby positioning the third spring 43. Similarly, the bottom end of the inertial body 21 also has a positioning groove.

[0054] Furthermore, the first sealing plate 14 has a guide rod 141 on one side facing the slider 41 , and the third spring 43 is sleeved on the guide rod 141 , so that the third spring 43 is guided by the guide rod 141 to prevent the third spring 43 from bending or dislocation during the extension and retraction process.

[0055] Combination Figure 2 and Figure 3 As shown, in this embodiment, the housing 1 has a tooling hole 15 , which is connected to the overload chamber 11 , the axis of the tooling hole 15 is consistent with the sliding direction of the inertial body 21 , and the tooling hole 15 is directly opposite to the pin shaft 22 .

[0056] In the above embodiment, by inserting a pushing mechanism (for example, the tooling shaft 151 described later) into the tooling hole 15, the pin shaft 22 and the inertial body 21 can be reset after the action pin 42 is actuated (under a non-overload state), and the limiting effect of the pin shaft 22 on the adjusting column 31 can be released. At this time, the action pin 42 can be pressed again to recover the action pin 42, thereby resetting the safety device.

[0057] Exemplarily, a tooling shaft 151 is movably inserted into the tooling hole 15 to squeeze and drive the pin shaft 22 to move.

[0058] Fig. 9 Schematic diagram of the driving and resetting of the safety device provided by the embodiment of the present invention. Fig. 9 As shown, in the non-overload state, the tooling shaft 151 is first inserted into the tooling hole 15 to move the pin 22 and the inertial body 21 downward. After the pin 22 moves below the adjustment column 31, the tooling shaft 151 is kept pressing the pin 22, and the action pin 42 is driven by external force, so that the action pin 42 drives the adjustment column 31 to move leftward, until the adjustment column 31 finally moves rightward and is inserted into the arc groove 411. At this time, the tooling shaft 151 is first removed, and the pin 22 and the inertial body 21 will move upward again under the action of the first spring 23, and the left end of the adjustment column 31 will abut against the pin 22, and then the squeezing force on the action pin 42 is removed, and the safety device is reset to reach the reset state. Figure 1 The non-overloaded state shown can be reused.

[0059] In this embodiment, a second sealing plate 16 is inserted on the outer wall of the housing 1 , and the second sealing plate 16 and the housing 1 are detachably connected to seal the overload chamber 11 , and one end of the first spring 23 abuts against the second sealing plate 16 .

[0060] In the above embodiment, the second sealing plate 16 can not only seal the overload chamber 11 , but also facilitate installation and maintenance of the inertia safety mechanism 2 .

[0061] Exemplarily, the second sealing plate 16 may be a compression screw.

[0062] In addition, a positioning block 33 is inserted in the adjustment cavity 12 . The positioning block 33 has a conducting hole. The other end of the adjustment column 31 can be slidably inserted in the conducting hole.

[0063] In the above embodiment, the positioning block 33 guides the sliding of the adjusting column 31 to ensure the sliding stability of the adjusting column 31 .

[0064] Exemplarily, both ends of the adjustment column 31 are arc-shaped structures, the left end of the positioning block 33 has a groove connected to the conducting hole, and the outer flange 311 is slidably matched with the groove.

[0065] Fig.10 FIG. 1 is a schematic diagram of the assembly of the electromagnetic pin puller provided by an embodiment of the present invention. Fig.10 As shown, the housing 1 has a limiting hole 17 which is connected to the overload chamber 11 , and an electromagnetic pin puller 171 is inserted in the limiting hole 17 . The output end of the electromagnetic pin puller 171 is used to abut against the outer wall of the inertial body 21 to limit the sliding of the inertial body 21 .

[0066] In the above embodiment, the electromagnetic pin puller 171 can limit the inertial body 21 to prevent the inertial body 21 from accidentally moving in non-test environments such as transportation and handling, causing the action pin 42 to extend out of the housing 1, thereby ensuring that the safety device is always in the initial state (i.e., non-overload state).

[0067] It should be noted that, under the test environment, the output end of the electromagnetic pin puller 171 is recovered to release the limit on the inertial body 21 .

[0068] Exemplarily, the outer peripheral wall of the inertial body 21 has an annular groove 211 , and the output end of the electromagnetic pin puller 171 can be movably inserted into the annular groove 211 .

[0069] In this embodiment, the housing 1 has a mounting hole 18, which is connected to the action chamber 13. A third sealing plate 19 is inserted into the mounting hole 18, and the third sealing plate 19 is opposite to the adjustment column 31. The third sealing plate 19 and the adjustment column 31 are respectively located on both sides of the action chamber 13.

[0070] In the above embodiment, the third sealing plate 19 can not only facilitate the disassembly and assembly of the adjusting mechanism 3 through the action chamber 13 , but also achieve the sealing of the action chamber 13 .

[0071] Exemplarily, the adjustment mechanism 3 is first installed through the mounting hole 18, the actuating mechanism 4 is then installed through the first sealing plate 14, and finally the inertial safety mechanism 2 is installed through the second sealing plate 16 (when installing the inertial safety mechanism 2, the actuating pin 42 is supported by external force to prevent it from extending out of the housing 1).

[0072] It should be noted that the third sealing plate 19 and the mounting hole 18 may also be arranged above the adjustment chamber 12, which can also facilitate the disassembly and assembly of the adjustment mechanism 3, and the present invention does not impose any limitation on this.

[0073] Fig.11 FIG. 1 is a flow chart of a method for detecting the performance of a safety device having an inertia safety mechanism provided by an embodiment of the present invention. Fig.11 As shown, the performance detection method is based on the above-mentioned safety device, and the performance detection method includes:

[0074] S101, placing the safety device in the centrifuge 5, with the sliding direction of the inertial body 21 arranged along the centrifugal force direction of the centrifuge 5, and the first spring 23 located outside the inertial body 21 (see Fig.12 ).

[0075] Exemplarily, the safety device is placed on the outer edge of the worktable of the centrifuge 5 .

[0076] S102 , adjusting the centrifugal force of the centrifuge 5 to simulate different overload forces on the inertial body 21 , until the actuating pin 42 is actuated and extends out of the housing 1 .

[0077] For the performance testing method of a safety device with an inertial safety mechanism provided by an embodiment of the present invention, different overload conditions can be simulated by a centrifuge 5 until various types of safety devices (different types of safety devices have different overload forces) are tested and verified to achieve the overload conditions corresponding to the safety function. Due to manufacturing errors, if the overload condition of the safety device does not meet the specified performance parameters, the second spring 32 can be replaced, so that not only the overload conditions of different types of safety devices can be tested and verified, but also the overload conditions of the same type of safety devices can be controlled within a reasonable range, thereby improving product consistency.

[0078] It will be easily understood by those skilled in the art that 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 should be included in the protection scope of the present invention.

Claims

1. A safety device with an inertia safety mechanism, It is characterized in that The safety device comprises a housing (1), an inertia safety mechanism (2), an adjustment mechanism (3) and an action mechanism (4); The housing (1) has an overload chamber (11), an adjustment chamber (12) and an action chamber (13) which are connected in sequence, and the adjustment mechanism (3) is detachably mounted in the adjustment chamber (12); The inertia safety mechanism (2) comprises an inertia body (21), a pin shaft (22) and a first spring (23); the inertia body (21) is slidably inserted into the overload chamber (11); one end of the pin shaft (22) is fixed to one end of the inertia body (21); two ends of the first spring (23) respectively abut against the other end of the inertia body (21) and the inner wall of the housing (1) to drive the inertia body (21) to slide; The adjusting mechanism (3) comprises an adjusting column (31) and a second spring (32); one end of the adjusting column (31) is perpendicular to and abuts against the outer peripheral wall of the other end of the pin shaft (22); the outer peripheral wall of the adjusting column (31) has an outer flange (311); the outer flange (311) is slidably inserted into the adjusting cavity (12); the second spring (32) is sleeved on one end of the adjusting column (31); and the two ends of the second spring (32) respectively abut against the outer flange (311) and the inner wall of the housing (1) to drive the adjusting column (31) to move toward the action cavity (13); The action mechanism (4) comprises a slider (41), an action pin (42) and a third spring (43); the slider (41) is slidably inserted in the action chamber (13); the outer peripheral wall of the slider (41) has an arc-shaped groove (411); the other end of the adjustment column (31) is movably inserted in the arc-shaped groove (411); one end of the action pin (42) is fixedly connected to one end of the slider (41), and the action pin (42) extends along the sliding direction of the slider (41); The other end of the action pin (42) passes through the housing (1), and the two ends of the third spring (43) respectively abut against the other end of the slider (41) and the inner wall of the housing (1) to drive the slider (41) to slide. The slider (41) is configured such that when the inertial body (21) slides under overload and the pin shaft (22) is separated from the adjustment column (31), the slider (41) pushes the adjustment column (31) to move, and the action pin (42) extends out of the housing (1).

2. A safety device with an inertia safety mechanism according to claim 1, It is characterized in that A first sealing plate (14) is inserted on the outer wall of the shell (1), and the first sealing plate (14) and the shell (1) are detachably connected to seal the action chamber (13), and one end of the third spring (43) abuts against the first sealing plate (14).

3. A safety device with an inertia safety mechanism according to claim 2, It is characterized in that The first sealing plate (14) has a guide rod (141) on one side facing the sliding block (41), and the third spring (43) is sleeved on the guide rod (141).

4. A safety device with an inertia safety mechanism according to claim 1, It is characterized in that The housing (1) has a tooling hole (15), the tooling hole (15) is connected to the overload chamber (11), the axis of the tooling hole (15) is consistent with the sliding direction of the inertial body (21), and the tooling hole (15) is directly opposite to the pin shaft (22).

5. A safety device with an inertia safety mechanism according to claim 4, It is characterized in that A tooling shaft (151) is movably inserted into the tooling hole (15) to squeeze and drive the pin shaft (22) to move.

6. A safety device with an inertia safety mechanism according to claim 1, It is characterized in that A second sealing plate (16) is inserted on the outer wall of the shell (1), and the second sealing plate (16) and the shell (1) are detachably connected to seal the overload chamber (11), and one end of the first spring (23) abuts against the second sealing plate (16).

7. A safety device with an inertia safety mechanism according to claim 1, It is characterized in that A positioning block (33) is inserted into the adjustment cavity (12), the positioning block (33) has a conducting hole, and the other end of the adjustment column (31) can be slidably inserted into the conducting hole.

8. A safety device with an inertia safety mechanism according to any one of claims 1 to 7, It is characterized in that The housing (1) is provided with a limiting hole (17), the limiting hole (17) being in communication with the overload chamber (11), an electromagnetic pin puller (171) being inserted into the limiting hole (17), the output end of the electromagnetic pin puller (171) being used to abut against the outer wall of the inertial body (21) to limit the sliding of the inertial body (21).

9. A safety device with an inertia safety mechanism according to any one of claims 1 to 7, It is characterized in that The housing (1) has a mounting hole (18), the mounting hole (18) is in communication with the action chamber (13), a third sealing plate (19) is inserted into the mounting hole (18), the third sealing plate (19) is directly opposite to the adjustment column (31), and the third sealing plate (19) and the adjustment column (31) are respectively located on two sides of the action chamber (13).

10. A performance testing method for a safety device having an inertia safety mechanism, It is characterized in that The performance detection method is based on the safety device according to any one of claims 1 to 9, and the performance detection method comprises: The safety device is placed in a centrifuge (5), and the sliding direction of the inertial body (21) is arranged along the centrifugal force direction of the centrifuge (5), and the first spring (23) is located outside the inertial body (21); The centrifugal force of the centrifuge (5) is adjusted to simulate different overload forces on the inertial body (21) until the actuating pin (42) is actuated and extends out of the housing (1).

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