Interlock structure of safety door and mechanical safety device

Abstract

The utility model belongs to mechanical safety device technical field, especially a kind of interlocking structure of safety door and mechanical safety device, including rack, safety door is provided on rack, and oppositely arranged head plate and tail plate are arranged, multiple guide rods are installed between the head plate and the tail plate, and slidingly installed with moving plate on guide rod;The moving plate is installed with the bumper bar towards tail plate along guide rod axis direction, the bumper bar is provided with multiple locking grooves along length direction, the bumper bar distal end passes through the limiting sleeve on the tail plate, locking assembly is installed on the tail plate, the locking assembly includes locking block, one end of the locking block is rotatably connected with the tail plate, and the other end can be rotatably clamped into or separated from locking groove;Simplify the adjustment process of bumper bar length, so that equipment can still maintain efficient interlocking function under different mould thickness conditions, and guarantee operation safety.

Description

Technical Field

[0001] This utility model relates to the field of mechanical safety devices, and in particular to an interlocking structure between a safety door and a mechanical safety device. Background Technology

[0002] In order to ensure the safety of the injection molding machine during operation, a safety device needs to be installed so that the injection molding machine can only perform the mold closing action when the machine door is closed.

[0003] Traditional mechanical safety devices mostly install the safety bar on the moving plate (second plate) and the safety block on the fixed plate (head plate). This method has some problems, such as: the head plate needs to be equipped with a protective cover to prevent mechanical injury, the length of the safety bar needs to be adjusted every time the mold is changed, and it cannot provide protection for multiple mold opening positions.

[0004] Therefore, existing mechanical safety devices, such as the inverted mechanical safety device of CN202122713919.3, choose to install the safety bar in reverse and install the safety block on the frame. This eliminates the need to adjust the length of the safety bar according to the mold thickness. However, this also brings new technical problems. To ensure that the safety bar can function in each mold closing section when switching between the mold with the minimum thickness and the mold with the maximum thickness, the safety bar needs to be made very long. Its length must cover the entire range of (maximum mold thickness - minimum mold thickness + mold opening stroke). Utility Model Content

[0005] This utility model provides an interlocking structure between a safety door and a mechanical safety device, which solves the problems in the prior art where loose bolts and other fastening components cause positioning deviations, and where after prolonged use, oxides or dirt sometimes accumulate on the blade surface, causing it to stick to the terminal and bend upwards or downwards after being pressed.

[0006] This utility model provides the following technical solution:

[0007] An interlocking structure for a safety door and a mechanical safety device includes a frame, on which a safety door is mounted, and a head plate and a tail plate arranged opposite to each other. A plurality of guide rods are installed between the head plate and the tail plate, and a movable plate is slidably mounted on the guide rods.

[0008] The movable plate is equipped with a safety bar facing the tail plate along the axis of the guide rod. The safety bar is provided with multiple locking grooves along its length. The far end of the safety bar passes through the limiting sleeve on the tail plate. A locking assembly is installed on the tail plate. The locking assembly includes a locking block. One end of the locking block is rotatably connected to the tail plate, and the other end can be rotatably engaged or disengaged from the locking groove.

[0009] The safety door is equipped with a triggering component. When the safety door is not fully closed, the triggering component drives the locking block to engage in the locking groove. When the safety door is fully closed, the triggering component drives the locking block to disengage from the locking groove.

[0010] Optionally, the locking groove has a locking surface facing the moving plate and a sliding surface facing the tail plate. When the locking block is engaged in the locking groove, the locking surface cooperates with the locking block to constrain the displacement of the moving block in the direction of the head plate. The sliding surface is used to slide with the locking block when the moving block moves in the direction of the tail plate.

[0011] Optionally, the locking groove is an annular groove, the sliding surface is a conical surface with its center on the bumper axis and facing the tail plate, the locking surface is an annular surface perpendicular to the bumper axis and an annular support surface connecting the conical surface and the annular surface, and the support surface can support the locking block.

[0012] Optionally, the triggering component includes an active component disposed on the safety door and a driven component disposed on the frame. The driven component drives the locking block to rotate through a transmission component to disengage from the locking groove. An elastic reset component is also disposed on the side of the locking block away from the locking groove. The elastic reset component is used to drive the locking block to re-engage into the locking groove.

[0013] Optionally, the transmission assembly includes a cable core and a cable sleeve fitted over the cable core. The first end of the cable core is connected to the driven member, and the second end is connected to the rotating end of the locking block. The first end of the cable sleeve is located on the side opposite to the direction of movement when the driven member moves in coordination with the driving member, and the second end is located on the side of the locking block away from the locking groove.

[0014] Optionally, the driven member includes a mounting base, on which a guide rail is provided in the moving direction of the safety door, and a slider is slidably mounted on the guide rail. The first end of the pull cable core is connected to the slider, and the first end of the pull cable sleeve abuts against the side of the mounting base away from the first end of the pull cable core, so that when the slider moves with the driving member, the slider pulls the pull cable core.

[0015] Optionally, a rocker arm assembly is mounted on the slider, including a rocker arm. One end of the rocker arm opposite to the driving member is rotatably connected to the mounting base. A strip-shaped limiting groove is provided in the middle of the rocker arm along its length. A limiting rod is provided on the slider to cooperate with the rocker arm. The limiting rod passes through the strip-shaped limiting groove. In the moving direction of the safety door, the other end of the rocker arm and the driving member have an overlapping portion, so that when the safety door is closed, the overlapping portion of the driving member drives the rocker arm to rotate around the rotation axis of the other end, while the strip-shaped limiting groove moves the slider through the limiting rod.

[0016] Optionally, the limiting sleeve consists of two opposing ear plates, each ear plate having a through hole along the axis of the bumper. The distal end of the bumper passes through the through hole. The locking block is positioned between the ear plates and above the bumper. One end of the locking block is rotatably connected to the ear plate via a pin. A fixing bracket is mounted on the limiting sleeve, and the fixing bracket has a limiting plate above the ear plates. The second end of the cable core passes through the limiting plate and connects to the top of the locking block. The second end of the cable sleeve abuts against the side of the limiting plate opposite to the locking block.

[0017] Optionally, the mounting base includes an L-shaped plate and a U-shaped base. The vertical plate of the L-shaped plate has a vertically arranged strip hole for connecting with the frame. The horizontal plate of the L-shaped plate has a strip hole perpendicular to the safety door direction for mounting the U-shaped base. The two side plates of the U-shaped base are located in the moving direction of the sliding door. The guide rail is installed between the two side plates. The side plate of the U-shaped base opposite to the closing direction of the sliding door has a first limiting groove that penetrates the plate body. The first end of the cable core passes through the first limiting groove and is connected to the slider. The cable sleeve abuts against the side of the first limiting groove opposite to the first end of the cable core.

[0018] Optionally, the vertical plate of the fixed bracket has a strip hole for fixed connection with the ear plate along the vertical direction, and the horizontal plate of the fixed bracket has a second limiting groove that penetrates the plate body. The second end of the cable core passes through the second limiting groove and is connected to the locking block. The second end of the cable sleeve is limited to the side of the second limiting groove away from the locking block.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0020] In this invention, when changing molds, the thickness of the new mold differs from that of the original mold. To accommodate molds of different thicknesses, the injection molding machine must adjust its mold capacity. This is usually achieved by moving the tail plate. When replacing with a thicker mold, the tail plate needs to be moved backward, meaning away from the head plate and further away from the frame. The locking assembly is installed on the tail plate. After changing to a new mold, since the locking assembly and the tail plate are adjusted together, the length of the mechanical safety lever only needs to be referenced to the mold opening stroke, without considering the impact of mold thickness. This simplifies the adjustment process of the safety lever length, allowing the equipment to maintain efficient interlocking function under different mold thicknesses and ensuring operational safety.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 One of the three-dimensional structural schematic diagrams of an interlocking structure of a security door and a mechanical safety device provided in an embodiment of this application;

[0024] Figure 2 A second three-dimensional structural schematic diagram of an interlocking structure of a safety door and a mechanical safety device provided for an embodiment of this utility model;

[0025] Figure 3 for Figure 2 Enlarged schematic diagram of a portion of the central structure;

[0026] Figure 4 This is a schematic diagram of the tail plate provided in one embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the structure of a movable plate provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of a follower provided in an embodiment of this application;

[0029] Figure 7 This is a schematic diagram of a locking block structure provided in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of a bumper structure provided in an embodiment of this application;

[0031] Figure 9 This is a schematic diagram of the installation of the active component on a door body according to an embodiment of this application;

[0032] Figure 10 This is a schematic diagram of a fixed support structure provided in an embodiment of this application. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] To better understand the purpose, function, and specific design scheme of this utility model, the fully automatic opening and pressing machine of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] To address the aforementioned issues, this application provides an interlocking structure between a safety door 2 and a mechanical safety device. A safety bar 8 is mounted on a movable plate 3 facing the tail plate 4, and a locking assembly 9 is mounted on the tail plate 4. When the safety door 2 is opened, the locking block 15 of the locking assembly 9 rotates and engages with the locking groove 25 to achieve a locking effect, preventing the mold closing action when the safety door 2 is open. Compared to directly mounting the locking assembly 9 on the frame, mounting the locking assembly 9 on the tail plate 4 allows the length of the mechanical safety bar 8 to be determined only by the distance of the mold opening stroke, without needing to consider the influence of the mold thickness.

[0040] like Figures 1-2 As shown, an interlocking structure between a safety door 2 and a mechanical safety device includes a frame, on which a safety door 2 is mounted, and a head plate and a tail plate 4 are arranged opposite to each other. Multiple guide rods are installed between the head plate and the tail plate 4, and a movable plate 3 is slidably mounted on the guide rods.

[0041] The movable plate 3 is equipped with a safety bar 8 facing the tail plate 4 along the axis of the guide rod. Specifically, as shown in the figure... Figure 5 As shown, a mounting base 5 is integrally formed on the movable plate 3, and the mounting end of the safety rod 8 is fixedly connected to the mounting base 5.

[0042] The bumper 8 is provided with a plurality of locking grooves 25 along its length. The far end of the bumper 8 passes through the limiting sleeve 10 on the tail plate 4. A locking assembly 9 is installed on the tail plate 4. The locking assembly 9 includes a locking block 15. One end of the locking block 15 is rotatably connected to the tail plate 4, and the other end can be rotatably engaged into or disengaged from the locking groove 25.

[0043] The safety door 2 is equipped with a triggering component. When the safety door 2 is not fully closed, the triggering component drives the locking block 15 to engage in the locking groove 25. When the safety door 2 is fully closed, the triggering component drives the locking block 15 to disengage from the locking groove 25.

[0044] In the above embodiments, when performing mold changing, since the thickness of the new mold is inconsistent with the thickness of the original mold, the injection molding machine must adjust its mold capacity to accommodate molds of different thicknesses. This is usually achieved by moving the tail plate 4. When replacing with a thicker mold, the tail plate 4 needs to be moved backward, which means away from the head plate and further away from the frame. The locking component 9 is installed on the tail plate 4. After replacing with the new mold, since the distance between the locking component 9 and the tail plate 4 is adjusted together, the length of the mechanical safety rod 8 only needs to refer to the distance of the mold opening stroke, without considering the impact of the mold thickness. This simplifies the adjustment process of the length of the safety rod 8, allowing the equipment to maintain an efficient interlocking function under different mold thicknesses and ensuring operational safety.

[0045] In some specific embodiments, such as Figure 1As shown, a slide rail 1 is installed along the guide rod direction on the frame, and the safety door 2 is slidably installed on the slide rail 1 via rollers.

[0046] In some embodiments of this application, such as Figure 8 As shown, the locking groove 25 has a locking surface facing the moving plate 3 and a sliding surface facing the tail plate 4. When the locking block 15 is engaged in the locking groove 25, the locking surface cooperates with the locking block 15 to constrain the displacement of the moving block in the direction of the head plate. The sliding surface is used to slide with the locking block 15 when the moving block moves in the direction of the tail plate 4.

[0047] When the aforementioned locking block 15 is engaged in the locking groove 25, if the moving plate 3 needs to continue closing the mold, it will drive the safety rod 8 to move away from the tail plate 4. At this time, the locking surface of the locking groove 25 and the locking block 15 interfere in the mold closing direction, thereby preventing the moving plate 3 from continuing to move towards the head plate, thus realizing the mechanical locking function. At the same time, when the moving plate 3 moves in the mold opening direction, the sliding surface and the locking block 15 form an inclined guide fit, so that the locking block 15 can disengage from the locking groove 25 along the sliding surface, thus realizing the smooth progress of the mold opening action.

[0048] Furthermore, the locking groove 25 can be a wedge-shaped structure, an annular structure, or other geometric shapes that facilitate guiding and locking functions.

[0049] In some embodiments of this application, such as Figure 8 As shown, the locking groove 25 is an annular groove, the sliding surface is a conical surface with its center on the axis of the bumper 8 and facing the tail plate 4, the locking surface is an annular surface perpendicular to the axis of the bumper 8 and an annular support surface connecting the conical surface and the annular surface, and the support surface can support the locking block 15.

[0050] When the locking block 15 is engaged in the locking groove 25, its annular surface reliably limits the displacement of the moving plate 3 towards the head plate. Simultaneously, the conical surface provides a guide for the locking block 15, allowing it to smoothly slide out of the locking groove 25 along the conical surface during mold opening, thus preventing jamming. Furthermore, the shape of the locking block 15 is adapted to the structure of the locking groove 25 to improve the stability of the locking and releasing actions.

[0051] In some embodiments of this application, such as Figure 3 As shown, the triggering component includes an active component 6 disposed on the safety door 2 and a driven component 7 disposed on the frame. The driven component 7 drives the locking block 15 to rotate through the transmission component to disengage from the locking groove 25. An elastic reset component is also disposed on the side of the locking block 15 away from the locking groove 25. The elastic reset component is used to drive the locking block 15 to re-engage into the locking groove 25.

[0052] When the safety door 2 is closed, the driving component 6 and the driven component 7 cooperate to drive the locking block 15 to rotate through the transmission assembly, causing it to disengage from the locking groove 25, thereby releasing the mechanical locking state and allowing the mold closing action to proceed. When the safety door 2 is opened, the driving component 6 and the driven component 7 separate, and the elastic reset assembly pushes the locking block 15 to re-engage into the locking groove 25, restoring the locking function. This ensures that the equipment cannot perform mold closing operations when the safety door 2 is not closed, effectively improving the safety performance of the equipment.

[0053] Furthermore, the transmission assembly can be a linkage transmission mechanism, a cable transmission mechanism, or a gear transmission mechanism, which can transmit the displacement or rotation of the driving member 6 to the locking block 15, thereby achieving precise rotation control of the locking block 15.

[0054] In some embodiments of this application, the transmission assembly includes a cable core and a cable sleeve 11 sleeved outside the cable core. The first end of the cable core is connected to the driven member 7, and the second end is connected to the rotating end of the locking block 15. The first end of the cable sleeve 11 is located on the side opposite to the direction of movement when the driven member 7 moves in conjunction with the driving member 6, and the second end is located on the side of the locking block 15 away from the locking groove 25.

[0055] When safety door 2 is closed, the driving member 6 pushes the driven member 7 to move away from the locking block 15, thereby tightening the cable core and causing the locking block 15 to rotate around its axis and disengage from the locking groove 25. When safety door 2 is fully closed, the locking block 15 is completely disengaged from the locking groove 25, the mechanical locking state is released, and mold closing operation can be performed. When safety door 2 is opened, the driving member 6 and the driven member 7 separate, the cable core loosens, and the locking block 15 is re-engaged into the locking groove 25 under the action of the elastic reset component, realizing the automatic reset and restoration of the locking function.

[0056] The driving component 6 and the driven component 7 can be structural forms that can realize displacement transmission and coordination, such as cams, sliders 19, rocker arms 20 or connecting rods, etc. The specific selection can be made according to the spatial layout of the equipment and the transmission requirements.

[0057] In some embodiments of this application, such as Figure 6 As shown, the driven member 7 includes a mounting base 5, on which a guide rail 21 is provided in the moving direction of the safety door 2. A slider 19 is slidably mounted on the guide rail 21. The first end of the cable core is connected to the slider 19. The first end of the cable sleeve 11 abuts against the side of the mounting base 5 away from the first end of the cable core, so that when the slider 19 moves with the driving member 6, the slider 19 pulls the cable core.

[0058] During the closing process of safety door 2, the driving element 6 and the driven element 7 gradually approach and eventually make contact. The slider 19 slides on the guide rail 21, causing the cable core to be tightened, thereby driving the locking block 15 to rotate around the rotating axis and gradually disengage from the locking groove 25. In this process, by setting the mounting base 5 and the guide rail 21 structure, the movement direction of the slider 19 can be effectively guided, ensuring its movement accuracy and stability under the action of the driving element 6, while avoiding transmission failure caused by deviation.

[0059] In some embodiments of this application, such as Figure 6 As shown, a rocker arm 20 assembly is mounted on the slider 19, including the rocker arm 20. The end of the rocker arm 20 facing away from the active member 6 is rotatably connected to the mounting base 5. A strip-shaped limiting groove is provided in the middle of the rocker arm 20 along its length direction. A limiting rod is provided on the slider 19 to cooperate with it. The limiting rod passes through the strip-shaped limiting groove. In the moving direction of the safety door 2, the other end of the rocker arm 20 and the active member 6 have an overlapping part, so that when the safety door 2 is closed, the overlapping part of the active member 6 drives the rocker arm 20 to rotate around the rotation axis of the other end. At the same time, the strip-shaped limiting groove moves the slider 19 through the limiting rod.

[0060] When safety door 2 is closed, the driving component 6 pushes the swing arm 20 to rotate, the limiting rod slides along the strip limiting groove and drives the slider 19 to move along the guide rail 21, thereby pulling the cable core and causing the locking block 15 to rotate and disengage from the locking groove 25. At this time, after safety door 2 is fully closed, the locking block 15 is completely disengaged from the locking groove 25, the mechanical locking state is released, and mold closing operation is allowed. When safety door 2 is opened, the driving component 6 disengages from the swing arm 20, the cable core is in a relaxed state, and the locking block 15 is re-engaged into the locking groove 25 under the action of the elastic reset component, thereby restoring the mechanical locking function. The cooperation structure between the swing arm 20 and the slider 19 can achieve a displacement amplification effect during the closing of safety door 2, thereby improving the sensitivity of the locking block 15 disengaging from the locking groove 25. By adjusting the length of the strip limiting groove and the position of the limiting rod, the travel of the slider 19 can be flexibly set to adapt to the locking requirements of different specifications of equipment.

[0061] In some embodiments of this application, such as Figures 3-4 As shown, the limiting sleeve 10 consists of two opposing ear plates. A through hole is provided on the ear plate along the axis of the safety rod 8. The distal end of the safety rod 8 passes through the through hole. The locking block 15 is disposed between the ear plates and located above the safety rod 8. One end of the locking block 15 is rotatably connected to the ear plate via a pin. A fixing bracket 14 is installed on the limiting sleeve 10. The fixing bracket 14 has a limiting plate above the ear plates. The second end of the cable core passes through the limiting plate and is connected to the top of the locking block 15. The second end of the cable sleeve 11 abuts against the side of the limiting plate away from the locking block 15.

[0062] The through holes on the ear plates guide the movement of the safety bar 8, ensuring its stable and reliable movement trajectory during locking and unlocking. The ear plates are spaced at reasonable intervals to accommodate the rotation space of the locking block 15. At the same time, the limiting plate provides limiting support for the connection end of the cable core to prevent the locking block 15 from shifting or getting stuck during the reset process.

[0063] In some embodiments of this application, such as Figure 6 As shown, the mounting base 5 includes an L-shaped plate 17 and a U-shaped base 16. The vertical plate of the L-shaped plate 17 has a vertically arranged strip hole for connecting with the frame. The horizontal plate of the L-shaped plate 17 has a strip hole perpendicular to the direction of the safety door 2 for mounting the U-shaped base 16. The two side plates of the U-shaped base 16 are located in the moving direction of the sliding door. The guide rail 21 is installed between the two side plates. The side plate of the U-shaped base 16 opposite to the closing direction of the sliding door has a first limiting groove 18 that penetrates the plate body. The first end of the cable core passes through the first limiting groove 18 and is connected to the slider 19. The cable sleeve 11 abuts against the side of the first limiting groove 18 opposite to the first end of the cable core.

[0064] In this embodiment, the combination structure of the L-shaped plate 17 and the U-shaped seat 16 enables flexible adjustment of the mounting base 5 on the frame. The vertical slot on the L-shaped plate 17 allows for vertical adjustment of the mounting base 5, accommodating installation requirements at different heights. The slot on the horizontal plate allows for horizontal adjustment of the U-shaped seat 16, adapting to equipment structures of varying widths. Simultaneously, the guide rail 21 installed between the two side plates of the U-shaped seat 16 provides stable sliding guidance for the slider 19, ensuring its smoothness and accuracy during movement. The first limiting groove 18 effectively prevents the cable core from shifting under force, thus ensuring the accuracy of the slider 19's movement on the guide rail 21 and the reliability of the locking block 15's action. The first limiting groove 18 can be a through hole or an open slot; for example, in this embodiment, the first limiting groove 18 is an open slot to facilitate the installation and positioning of the cable core.

[0065] In some embodiments of this application, such as Figure 3 , Figure 10 As shown, the vertical plate of the fixed bracket 14 has a waist hole 27 for fixed connection with the ear plate along the vertical direction. The horizontal plate of the fixed bracket 14 has a second limiting groove 26 that passes through the plate body. The second end of the cable core passes through the second limiting groove 26 and is connected to the locking block 15. The second end of the cable sleeve 11 is limited to the side of the second limiting groove 26 away from the locking block 15.

[0066] The waist hole 27 on the vertical plate of the fixed bracket 14 allows for vertical adjustment when installing the ear plate, thereby adjusting the relative position between the horizontal plate of the fixed bracket 14 and the ear plate, and thus adjusting the distance from the second end of the cable sleeve 11 to the locking block 15 to adapt to the needs of different equipment specifications. At the same time, the limiting groove 26 effectively prevents the cable core from shifting or shaking during movement. For example, in this embodiment, the second limiting groove 26 is also an open groove, which facilitates the installation and removal of the cable core.

[0067] like Figure 7 As shown, in some specific embodiments of this application, a through shaft hole 24 is provided at one end of the locking block 15 along the width direction. A rotating shaft passes through the shaft hole 24 and is rotatably connected to the ear plates on both sides. A mounting groove 22 is provided at the top of the locking block 15, and pin holes 23 are provided on both sides of the mounting groove 22 along the width direction, through the locking block 15. A fixing shaft for connecting the second end of the cable core is installed in the pin holes 23. Specifically, as shown... Figure 3 As shown, a limiting piece 12 is fixed at the second end of the cable sleeve 11, and the limiting piece 12 at the second end abuts against the side of the second limiting groove 26 away from the locking block 15. A limiting piece 12 is fixed at the first end of the cable sleeve 11, and the limiting piece 12 at the first end abuts against the side of the first limiting groove 18 away from the slider 19.

[0068] like Figure 3 As shown, the elastic reset component is a reset spring 13. The reset spring 13 is sleeved on the second end of the cable core. The lower end of the reset spring 13 contacts the fixed shaft in the mounting groove 22 of the locking block 15, and the upper end of the reset spring 13 contacts the side of the horizontal plate of the fixed bracket 14 facing the locking block 15. The reset spring 13 is in a slightly compressed state, so that when the cable core is pulled by force to pull the locking block 15, it can provide a reverse reset force, so that the locking block 15 quickly returns to its original position after the cable core is released, and returns to the initial locking state.

[0069] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An interlocking structure for a safety door and a mechanical safety device, comprising a frame, a safety door (2) mounted on the frame, and a head plate and a tail plate (4) arranged opposite to each other, wherein a plurality of guide rods are installed between the head plate and the tail plate (4), and a movable plate (3) is slidably mounted on the guide rods, characterized in that: The movable plate (3) is equipped with a safety rod (8) facing the tail plate (4) along the axis of the guide rod. The safety rod (8) is provided with multiple locking grooves (25) along its length. The far end of the safety rod (8) passes through the limiting sleeve (10) on the tail plate (4). The tail plate (4) is equipped with a locking assembly (9). The locking assembly (9) includes a locking block (15). One end of the locking block (15) is rotatably connected to the tail plate (4), and the other end can be rotatably inserted into or removed from the locking groove (25). The safety door (2) is provided with a triggering component. When the safety door (2) is not fully closed, the triggering component drives the locking block (15) to engage in the locking groove (25). When the safety door (2) is fully closed, the triggering component drives the locking block (15) to disengage from the locking groove (25).

2. The interlocking structure of a safety door and a mechanical safety device according to claim 1, characterized in that: The locking groove (25) has a locking surface facing the moving plate (3) and a sliding surface facing the tail plate (4). When the locking block (15) is inserted into the locking groove (25), the locking surface cooperates with the locking block (15) to constrain the displacement of the moving plate (3) in the direction of the head plate. The sliding surface is used to slide with the locking block (15) when the moving plate (3) moves in the direction of the tail plate (4).

3. The interlocking structure of a safety door and a mechanical safety device according to claim 2, characterized in that: The locking groove (25) is an annular groove, the sliding surface is a conical surface with its center on the axis of the bumper (8) and facing the tail plate (4), the locking surface is an annular surface perpendicular to the axis of the bumper (8) and an annular support surface connecting the conical surface and the annular surface, and the support surface can support the locking block (15).

4. The interlocking structure of a safety door and a mechanical safety device according to claim 1, characterized in that: The triggering component includes an active component (6) disposed on the safety door (2) and a driven component (7) disposed on the frame. The driven component (7) drives the locking block (15) to rotate through the transmission component to disengage from the locking groove (25). An elastic reset component is also provided on the side of the locking block (15) away from the locking groove (25). The elastic reset component is used to drive the locking block (15) to re-engage into the locking groove (25).

5. The interlocking structure of a safety door and a mechanical safety device according to claim 4, characterized in that: The transmission assembly includes a cable core and a cable sleeve (11) sleeved outside the cable core. The first end of the cable core is connected to the driven member (7), and the second end is connected to the rotating end of the locking block (15). The first end of the cable sleeve (11) is located on the side opposite to the direction of movement when the driven member (7) moves in conjunction with the driving member (6), and the second end is located on the side of the locking block (15) away from the locking groove (25).

6. The interlocking structure of a safety door and a mechanical safety device according to claim 5, characterized in that: The driven member (7) includes a mounting base (5), on which a guide rail (21) is provided in the moving direction of the safety door (2), and a slider (19) is slidably mounted on the guide rail (21). The first end of the cable core is connected to the slider (19), and the first end of the cable sleeve (11) abuts against the side of the mounting base (5) away from the first end of the cable core, so that when the slider (19) moves with the driving member (6), the slider (19) pulls the cable core.

7. The interlocking structure of a safety door and a mechanical safety device according to claim 6, characterized in that: The slider (19) is equipped with a rocker arm (20) assembly, including the rocker arm (20). The end of the rocker arm (20) away from the active member (6) is rotatably connected to the mounting base (5). A strip-shaped limiting groove is provided in the middle of the rocker arm (20) along the length direction. A limiting rod is provided on the slider (19) to cooperate with it. The limiting rod passes through the strip-shaped limiting groove. In the moving direction of the safety door (2), the other end of the rocker arm (20) and the active member (6) have an overlapping part, so that when the safety door (2) is closed, the overlapping part of the active member (6) drives the rocker arm (20) to rotate around the rotation axis of the other end. At the same time, the strip-shaped limiting groove moves the slider (19) through the limiting rod.

8. The interlocking structure of a safety door and a mechanical safety device according to claim 7, characterized in that: The limiting sleeve (10) consists of two opposing ear plates. A through hole is provided on the ear plate along the axis of the safety rod (8). The far end of the safety rod (8) passes through the through hole. The locking block (15) is located between the ear plates and above the safety rod (8). One end of the locking block (15) is rotatably connected to the ear plate by a pin. A fixed bracket (14) is installed on the limiting sleeve (10). The fixed bracket (14) has a limiting plate above the ear plate. The second end of the cable core passes through the limiting plate and is connected to the top of the locking block (15). The second end of the cable sleeve (11) abuts against the side of the limiting plate away from the locking block (15).

9. The interlocking structure of a safety door and a mechanical safety device according to claim 8, characterized in that: The mounting base (5) includes an L-shaped plate (17) and a U-shaped base (16). The vertical plate of the L-shaped plate (17) has a vertically arranged strip hole for connecting with the frame. The horizontal plate of the L-shaped plate (17) has a strip hole perpendicular to the direction of the safety door (2) for installing the U-shaped base (16). The two side plates of the U-shaped base (16) are located in the moving direction of the moving door. The guide rail (21) is installed between the two side plates. The side plate of the U-shaped base (16) away from the closing direction of the moving door has a first limiting groove (18) that passes through the plate body. The first end of the cable core passes through the first limiting groove (18) and is connected to the slider (19). The cable sleeve (11) abuts against the side of the first limiting groove (18) away from the first end of the cable core.

10. The interlocking structure of a safety door and a mechanical safety device according to claim 9, characterized in that: The vertical plate of the fixed bracket (14) has a strip hole for fixed connection with the ear plate in the vertical direction. The horizontal plate of the fixed bracket (14) has a second limiting groove (26) that passes through the plate body. The second end of the cable core passes through the second limiting groove (26) and is connected to the locking block (15). The second end of the cable sleeve (11) is limited to the side of the second limiting groove (26) away from the locking block (15).

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