Ironworker anti-pinching safety device

Abstract

The utility model discloses an iron driller anti -clamping safety device, it is installed on the support arm, and it includes trigger subassembly, inductive component and controller, one side of trigger subassembly is hinged on the support arm, and the hinge axis direction of trigger subassembly and the length direction of trigger subassembly are all matched in the length direction of support arm, and inductive component is fixedly connected on the support arm, and the hydraulic control system of controller electricity is connected support arm and inductive component. In the utility model, the staff can actively push the non -hinged side of trigger subassembly in dangerous area to make trigger subassembly rotate to inductive component and trigger inductive component to make the hydraulic control system of support arm lock to make support arm stop, and then be favorable to guarantee staff safety, the device is arranged along the length direction of support arm, and it has greater operable area, and compared with the emergency stop switch, its operation is simpler and more convenient, namely under the emergency, more easily trigger stop instruction, to further improve the safety performance.

Description

Technical Field

[0001] This utility model belongs to the field of safety protection technology for automated oil drilling equipment, and in particular relates to a safety device for preventing pinching of iron drillers. Background Technology

[0002] The telescopic boom drill is a core piece of automated equipment on drilling platforms. During drill pipe coupling / uncoupling operations, its support arm cyclically extends, operates, and retracts. The area between the extended and retracted states of the support arm is a hazardous zone with significant safety hazards. Furthermore, after coupling / uncoupling, the support arm retracts to its storage position. Because the operator may not be able to directly observe the moving parts due to the equipment's steel structure, other workers who accidentally enter this hazardous area are easily trapped by the drill's mechanical structure, potentially leading to accidents. Utility Model Content

[0003] To overcome the shortcomings of existing technology, this utility model provides a safety device for preventing iron drillers from being pinched, which can easily and actively stop the support arm in dangerous areas to help ensure the safety of workers.

[0004] The objective of this utility model is achieved through the following technical solution: A safety device for preventing pinching in iron drillers, mounted on a support arm, comprising: The triggering component is hinged to the support arm on one side, and the hinge axis direction and the length direction of the triggering component are both matched with the length direction of the support arm. The sensing component is fixedly connected to the support arm; The controller is electrically connected to the hydraulic control system and sensing components of the support arm; In this process, the triggering component rotates towards the sensing component, which triggers the sensing component, locking the hydraulic control system of the support arm and bringing the support arm to a stop.

[0005] The beneficial effects of adopting the above technical solution are as follows: In the danger zone, the worker can actively push the non-articulated side of the trigger component to make the trigger component rotate toward the sensing component and trigger the sensing component, thereby stopping the support arm by locking the hydraulic control system of the support arm, which helps to ensure the safety of the worker; In particular, the anti-pinch safety device for iron drillers is arranged along the length of the support arm, which has a larger operating area. Compared with the emergency stop switch, it is simpler and more convenient to operate, that is, it is easier to trigger the braking command in an emergency, so as to further improve the safety performance.

[0006] Furthermore, the anti-pinch safety device for iron drillers includes a reset assembly, the two ends of which are respectively connected to the non-hinged side of the trigger assembly and the support arm.

[0007] The beneficial effect of adopting the above technical solution is that when the staff no longer actively pushes the trigger component, the trigger component can be reset under the action of the reset component.

[0008] Furthermore, the sensing component includes a Hall proximity switch with a lever at its end; The triggering component includes a guardrail, one side of which is hinged to a support arm. A trigger is fixedly installed on the guardrail, and one side of the trigger abuts against a lever. The reset assembly includes a tension spring and a support fixedly connected to the support arm. The support and the lever are located on both sides of the trigger, and the two ends of the tension spring are connected to the trigger and the support, respectively.

[0009] The beneficial effects of adopting the above technical solution are as follows: When the staff actively pushes the non-hinged side of the guardrail, the guardrail can drive the trigger element to rotate towards the Hall proximity switch, so as to trigger the Hall proximity switch by moving the lever. At the same time, the tension spring is gradually stretched. When the staff no longer actively pushes the guardrail, the guardrail drives the trigger element to rotate away from the Hall proximity switch under the elastic force of the tension spring, so as to achieve reset, and the lever is reset accordingly.

[0010] Furthermore, the triggering component includes a base plate fixedly connected to the support arm, one side of the guardrail is hinged to the base plate, and a first limiting plate is fixedly provided at the hinge of the guardrail for abutting against one side of the base plate after rotation. When the first limiting plate abuts against one side of the base plate, the lever is in the extreme lever position.

[0011] The beneficial effects of adopting the above technical solution are as follows: when the first limiting plate abuts against one side of the base plate, the lever is in the extreme toggle position. At this time, the base plate can limit the lever from being toggleed by limiting the first limiting plate from continuing to rotate, so as to play the role of travel limit and thus prevent damage to the Hall proximity switch due to overtravel.

[0012] Furthermore, a second limiting plate is fixedly installed at the hinge of the guardrail to abut against the other side of the base plate after reverse rotation; When the second limiting plate abuts against the other side of the base plate, the tension spring is stretched and the lever is in the unmoved position.

[0013] The beneficial effects of adopting the above technical solution are as follows: when the second limiting plate abuts against the other side of the base plate, the tension spring is stretched and the lever is in the unmoved position to complete the reset; and since the tension spring is stretched at this time, that is, the second limiting plate is pressed against the base plate by the tension of the tension spring, the movement of the trigger component needs to overcome the tension of the tension spring. In other words, the trigger component is difficult to move when no external force is applied by the operator, thereby avoiding the Hall proximity switch from being accidentally touched to a certain extent.

[0014] Furthermore, a handhold is provided on the non-hinged side of the guardrail.

[0015] The beneficial effects of adopting the above technical solution are: this design makes it easier for workers to grip and apply force, thus facilitating operation.

[0016] Furthermore, the controller is electrically connected to a digital input module for adjusting the detection distance of the Hall proximity switch.

[0017] The beneficial effect of adopting the above technical solution is that this setting allows the detection distance of the Hall proximity switch to be adjusted according to the actual needs of the digital input module.

[0018] Furthermore, the triggering component, sensing component, and reset component are all connected to the lower left rod of the support arm.

[0019] The beneficial effects of adopting the above technical solution are: this arrangement maximizes the coverage of the dangerous area, thereby facilitating quick operation for personnel in the dangerous area.

[0020] Furthermore, the anti-pinch safety device for iron drillers includes an audible and visual alarm that is electrically connected to the controller and is fixedly connected to the support arm.

[0021] The beneficial effects of adopting the above technical solution are: the sound and light alarm can emit sound and light alarms after the sensing component is triggered, so as to realize visual alarm. Furthermore, the controller is electrically connected to the HMI historical database.

[0022] The beneficial effects of adopting the above technical solution are: after the sensing component is triggered, it can record the fault code to the HMI historical database to further realize visual alarm.

[0023] The beneficial effects of this utility model are as follows: Workers can actively push the non-articulated side of the triggering component within the danger zone to rotate the triggering component towards the sensing component and trigger it. This causes the hydraulic control system of the support arm to lock, thus stopping the support arm and ensuring worker safety. The anti-pinch safety device for iron drillers is arranged along the length of the support arm, providing a larger operable area. Compared to an emergency stop switch, it is simpler and more convenient to operate, making it easier to trigger the braking command in an emergency, further improving safety performance. Attached Figure Description

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 An installation diagram of this utility model is shown; Figure 2 Showing Figure 1 A magnified view of a section at point A in the middle; Figure 3 A schematic diagram of the structure of this utility model is shown; Figure 4 This image shows an isometric view of the present invention without the handheld part installed. Figure 5 An isometric view of this utility model is shown; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0025] Figure label: 1. Support arm; 2. Reset assembly; 201. Tension spring; 3. Sensing assembly; 301. Paddle; 302. Hall effect proximity switch; 303. Angle steel; 4. Trigger assembly; 401. First limit plate; 402. Hinge; 403. Base plate; 404. Guardrail; 405. Second limit plate; 406. Trigger element; 407. Handheld part; 5. Audible and visual alarm. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] This utility model provides a safety device for preventing iron drillers from being pinched, which is installed on the support arm 1, such as... Figure 1 and Figure 2 As shown, it includes: Trigger component 4, one side of trigger component 4 is hinged to support arm 1, and the hinge axis direction and length direction of trigger component 4 are both matched with the length direction of support arm 1; Sensing component 3 is fixedly connected to support arm 1; The controller is electrically connected to the hydraulic control system of the support arm 1 and the sensing component 3. The controller can be a PLC control system. When the triggering component 4 rotates toward the sensing component 3, the sensing component 3 is triggered, the hydraulic control system of the support arm 1 is locked, and the support arm 1 is brought to a stop.

[0028] Understandably, in an emergency, without the operator operating the control box and remote control, the worker can actively push the non-articulated side of the trigger component 4 within the danger zone, causing the trigger component 4 to rotate toward the sensing component 3 and trigger the sensing component 3. This locks the hydraulic control system of the support arm 1, thereby stopping the support arm 1 through electromechanical linkage, which helps to ensure the safety of the worker. In particular, the anti-pinch safety device for iron drillers is arranged along the length of the support arm 1, which has a larger operating area. Compared with the emergency stop switch, it is simpler and more convenient to operate, that is, it is easier to trigger the braking command in an emergency, thereby further improving safety performance.

[0029] It should be noted that when performing fault repairs on the iron drill, in addition to using maintenance pins to prevent the support arm 1 from retracting, this utility model adds secondary protection to ensure the safety of maintenance personnel. Furthermore, even if the operator cannot directly observe the status of the moving parts due to the obstruction of the equipment's steel structure, other personnel in the danger zone can automatically stop the support arm 1, thereby reducing accidents caused by personnel being trapped by the iron drill's mechanical structure.

[0030] It should also be noted that during the locking process of the hydraulic control system of support arm 1, the power supply to the proportional valve is first cut off, and then the solenoid valve of the hydraulic main circuit is closed.

[0031] In one embodiment, the anti-pinch safety device for iron drillers includes a reset component 2, with its two ends connected to the non-hinged side of the trigger component 4 and the support arm 1, respectively.

[0032] Understandably, when the staff no longer actively pushes the trigger component 4, the trigger component 4 can be reset under the action of the reset component 2.

[0033] In one embodiment, such as Figure 1-5 As shown, the sensing component 3 includes a Hall proximity switch 302 with a lever 301 at its end. The Hall proximity switch 302 is bolted to an angle steel 303, which is bolted to the lower left rod of the support arm 1. The protection level of the Hall proximity switch 302 is IP67. The triggering component 4 includes a guardrail 404, one side of which is hinged to the support arm 1. A trigger 406 is fixedly installed on the guardrail 404. One side of the trigger 406 abuts against the paddle 301. The end of the paddle 301 that abuts against the trigger 406 can be configured as a roller. The reset assembly 2 includes a tension spring 201 and a support member fixedly connected to the support arm 1. The support member and the paddle 301 are located on both sides of the trigger member 406, respectively. The two ends of the tension spring 201 are connected to the trigger member 406 and the support member, respectively. The tension spring 201 can be a 304 stainless steel double torsion spring assembly.

[0034] Understandably, when the staff actively pushes the non-hinged side of the guardrail 404, the guardrail 404 can drive the trigger 406 to rotate towards the Hall proximity switch 302, so as to trigger the Hall proximity switch 302 by moving the lever 301. At the same time, the tension spring 201 is gradually stretched. When the staff no longer actively pushes the guardrail 404, the guardrail 404 drives the trigger 406 to rotate away from the Hall proximity switch 302 under the elastic force of the tension spring 201, so as to achieve reset, and the lever 301 is reset accordingly.

[0035] It should be noted that both the trigger 406 and the support are provided with a bolt for hanging the tension spring 201. One end of the bolt is threaded with a nut and a cotter pin is inserted, so that the two ends of the tension spring 201 are connected to the trigger 406 and the support.

[0036] In one embodiment, the triggering component 4 includes two base plates 403 fixedly connected to the support arm 1. One end of the guardrail 404 is hinged to the two base plates 403 by hinges 402 respectively. A first limiting plate 401 for abutting against one side of the base plate 403 after rotation is welded to the hinge of the guardrail 404. When the first limiting plate 401 abuts against one side of the base plate 403, the paddle 301 is in the extreme paddle position.

[0037] It is understandable that when the first limiting plate 401 abuts against one side of the base plate 403, the lever 301 is in the extreme toggle position. At this time, the base plate 403 can limit the lever 301 from being toggle further by limiting the first limiting plate 401 from continuing to rotate, so as to play the role of travel limit and thus prevent damage to the Hall proximity switch 302 due to overtravel.

[0038] It should be noted that the guardrail 404 is made of Q235B steel. Both sides of the guardrail 404 are made of straight round steel, and multiple bent round steels are evenly welded between the two straight round steels along the length direction. The main body of the guardrail 404 adopts an arc-shaped ergonomic design. In addition, the base plate 403 is made of Q355D high-strength steel plate.

[0039] In one embodiment, a second limiting plate 405 is welded to the hinge of the guardrail 404 for abutting against the other side of the base plate 403 after reverse rotation; When the second limiting plate 405 abuts against the other side of the base plate 403, the tension spring 201 is stretched and the lever 301 is in the unmoved position. At this time, the preload of the tension spring 201 can be 20N±5% to ensure that the guardrail 404 automatically resets to the safe position in the non-triggered state.

[0040] It is understandable that when the second limiting plate 405 abuts against the other side of the base plate 403, the tension spring 201 is stretched and the lever 301 is in the unmoved position to complete the reset; and since the tension spring 201 is stretched at this time, that is, the second limiting plate 405 is pressed on the base plate 403 by the tension of the tension spring 201, the movement of the trigger component 4 needs to overcome the tension of the tension spring 201. In other words, the trigger component 4 is difficult to move when no external force is applied by the operator, thereby avoiding the Hall proximity switch 302 from being accidentally activated to a certain extent.

[0041] In one embodiment, such as Figure 4 and Figure 5As shown, a handhold 407 is provided on the non-hinged side of the guardrail 404, and the handhold 407 is made of rubber to facilitate the operation of the staff by gripping and applying force. In other embodiments, the handhold 407 may also be made of materials that are easy to hold, such as plastic, for example, using soft plastics (thermoplastic elastomers, etc.) or hard plastics with micro-textured treatment.

[0042] In one embodiment, the controller is electrically connected to a digital input module for adjusting the detection distance of the Hall proximity switch 302, so that the detection distance of the Hall proximity switch 302 can be adjusted according to the actual needs of the digital input module; wherein, the detection distance of the Hall proximity switch 302 is adjustable in the range of 15mm to 20mm.

[0043] In one embodiment, the triggering component 4, the sensing component 3, and the reset component 2 are all connected to the lower left rod of the support arm 1; this arrangement maximizes coverage of the hazardous area, thereby facilitating quick operation by personnel within the hazardous area.

[0044] It should be noted that a driller's anti-pinch safety device should be installed on the lower left rod on both the front and rear sides of the support arm 1 to further increase the operable area.

[0045] In one embodiment, the anti-pinch safety device for iron drillers includes an audible and visual alarm 5 electrically connected to the controller, and the audible and visual alarm 5 is fixedly connected to the support arm 1; wherein, the audible and visual alarm 5 may be an HB-301 type audible and visual alarm.

[0046] Understandably, the audible and visual alarm 5 can emit an audible and visual alarm after the sensing component 3 is triggered, so as to achieve visual alarm.

[0047] In one embodiment, the controller is electrically connected to the HMI historical database.

[0048] Understandably, once the sensing component 3 is triggered, it can record the fault code to the HMI historical database to further enable visual alarms.

[0049] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A safety device for preventing pinching in iron drillers, installed on a support arm (1), characterized in that, include: A trigger component (4) is hinged on one side of the support arm (1). The hinge axis direction of the trigger component (4) and the length direction of the trigger component (4) are both matched with the length direction of the support arm (1). Sensing component (3), which is fixedly connected to the support arm (1); The controller is electrically connected to the hydraulic control system of the support arm (1) and the sensing component (3). When the triggering component (4) rotates toward the sensing component (3), the sensing component (3) is triggered, the hydraulic control system of the support arm (1) is locked, and the support arm (1) is brought to a stop.

2. The anti-pinch safety device for iron drillers according to claim 1, characterized in that, It includes a reset component (2), the two ends of which are connected to the non-hinged side of the trigger component (4) and the support arm (1), respectively.

3. The anti-pinch safety device for iron drillers according to claim 2, characterized in that, The sensing component (3) includes a Hall proximity switch (302) with a lever (301) at its end. The triggering component (4) includes a guardrail (404), one side of which is hinged to the support arm (1), and a trigger (406) is fixedly provided on the guardrail (404), one side of which abuts against the paddle (301). The reset assembly (2) includes a tension spring (201) and a support member fixedly connected to the support arm (1). The support member and the paddle (301) are located on both sides of the trigger member (406). The two ends of the tension spring (201) are connected to the trigger member (406) and the support member, respectively.

4. The anti-pinch safety device for iron drillers according to claim 3, characterized in that, The triggering component (4) includes a base plate (403) fixedly connected to the support arm (1), one side of the guardrail (404) is hinged to the base plate (403), and a first limiting plate (401) for abutting against one side of the base plate (403) after rotation is fixedly provided at the hinge of the guardrail (404). When the first limiting plate (401) abuts against one side of the base plate (403), the paddle (301) is in the extreme paddle position.

5. A safety device for preventing pinching in iron drillers according to claim 4, characterized in that, The guardrail (404) is fixedly provided with a second limiting plate (405) for abutting against the other side of the base plate (403) after being rotated in the opposite direction. When the second limiting plate (405) abuts against the other side of the base plate (403), the tension spring (201) is stretched and the paddle (301) is in the unmoved position.

6. A safety device for preventing pinching in iron drillers according to claim 3, characterized in that, The guardrail (404) is provided with a handhold (407) on the non-hinged side.

7. A safety device for preventing pinching in iron drillers according to claim 3, characterized in that, The controller is electrically connected to a digital input module for adjusting the detection distance of the Hall proximity switch (302).

8. A safety device for preventing pinching in iron drillers according to claim 2, characterized in that, The triggering component (4), the sensing component (3) and the reset component (2) are all connected to the lower left rod of the support arm (1).

9. A safety device for preventing pinching in iron drillers according to claim 1 or 2, characterized in that, It includes an audible and visual alarm (5) electrically connected to the controller, and the audible and visual alarm (5) is fixedly connected to the support arm (1).

10. A safety device for preventing pinching in iron drillers according to claim 9, characterized in that, The controller is electrically connected to the HMI historical database.

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