Novel safety pedal device

Abstract

The invention provides a novel safety pedal device, and relates to the technical field of injection molding machine equipment, the novel safety pedal device comprises a rack with an oil groove and a control unit, the top of the rack is sequentially provided with an antiskid plate for treading and a protection mechanism connected with the control unit along the length direction, the antiskid plate is used for bearing sundries, and an injection molding machine stops working when the sundries are too heavy; a lifting mechanism used for lifting the antiskid plate is arranged below the antiskid plate, and the protection mechanism and the lifting mechanism are both located above the oil groove in the rack. The oil groove in the rack is covered through the anti-skid plate and the protection mechanism, so that the oil groove is conveniently protected, impurities are prevented from falling into the oil groove to cause pollution, even if the impurities or other impurities in the water gap fall, the impurities only fall onto the protection mechanism and are borne by the protection mechanism, and the service life of the water gap is prolonged. And when the sundries are too heavy, the injection molding machine is controlled to stop working, so that operators can conveniently clean the sundries.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine equipment technology, and more specifically, to a novel safety pedal device. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. In layman's terms, its working principle is somewhat like an oversized "hot melt glue gun" or "syringe": the plastic raw material is heated and melted, and then injected into a mold of a specific shape under high pressure. After cooling and solidification, the desired plastic product is obtained. They are divided into vertical injection molding machines, horizontal injection molding machines, and all-electric injection molding machines, and are one of the most widely used pieces of equipment in the modern plastics processing industry.

[0003] In injection molding machines, large molds are often opened and closed using a left-right opening mold design. There is an oil groove under the left-right opening mold of the injection molding machine. During the opening and closing process, debris or other foreign objects in the sprue may fall into the oil groove and cause pollution. Summary of the Invention

[0004] The present invention aims to solve the problem in the prior art that during the left and right opening and closing of the injection molding machine, debris or other foreign matter in the sprue may fall into the oil tank and cause pollution.

[0005] To solve the above problems, the present invention provides a novel safety pedal device, including a frame with an oil tank and a control unit. The top of the frame is sequentially equipped with an anti-slip plate for stepping on and a protective mechanism connected to the control unit, which is used to bear debris and stop the injection molding machine when the debris is too heavy. A lifting mechanism for raising and lowering the anti-slip plate is provided below it, and both the protective mechanism and the lifting mechanism are located above the oil tank on the frame.

[0006] The present invention provides a novel safety pedal device, which, compared with the prior art, has, but is not limited to, the following beneficial effects: This new safety footplate device covers the oil tank on the machine frame using an anti-slip plate and a protective mechanism, thus protecting the oil tank and preventing debris from falling into it and causing contamination. When debris or other foreign objects fall from the sprue, they only fall onto the protective mechanism, which bears the weight. When the debris accumulates to an excessive weight, the control unit stops the injection molding machine. At this time, the operator can adjust the height of the anti-slip plate using the lifting mechanism, allowing them to safely and smoothly step onto it from the outside. By continuously adjusting the position of the anti-slip plate using the lifting mechanism, the operator can clear the debris from the protective mechanism to the outside of the injection molding machine, facilitating safe access for cleaning. Furthermore, when repairing the mold on the injection molding machine, the operator can also adjust the position of the anti-slip plate using the lifting mechanism, allowing them to step onto it for easy and convenient mold repair.

[0007] Furthermore, the protection mechanism includes a plate frame and a limit switch. A protective plate is installed on the top of the plate frame, and telescopic supports are evenly installed on the bottom of the plate frame. The limit switch is installed next to the telescopic supports. The limit switch is connected to the electrical signal output of the control unit, and the control unit controls the start and stop of the injection molding machine.

[0008] Furthermore, the telescopic support includes a support base plate, a guide column, and a buffer spring. The top of the support base plate is fixedly connected to a support cylinder. The top of the guide column is movably connected to the bottom of the plate frame, and the bottom of the guide column is fixedly connected to the bottom of the inner cavity of the support cylinder. The buffer spring is sleeved on the outside of the guide column, with one end abutting against the bottom of the plate frame and the other end abutting against the bottom of the inner cavity of the support cylinder. A vertical block is fixedly installed on the inner side of the supporting base plate, and a bracket is installed on the vertical block. The limit switch is installed on the top of the bracket.

[0009] Furthermore, guide components are provided on both the front and rear sides of the plate frame, including guide sleeves, fasteners, and ear seats that are fixedly connected to the plate frame. The ear seats are movably sleeved on the outside of the guide sleeves, and a rubber pad is sleeved on the lower outer end of the guide sleeves. The threaded end of the fastener passes through the guide sleeves and is connected to the frame.

[0010] Furthermore, the lifting mechanism includes a base frame and a support frame, the anti-slip plate is fixedly installed on the top of the support frame, and a scissor lift is installed between the base frame and the support frame to drive the support frame to move vertically away from or towards the base frame.

[0011] Furthermore, the scissor lift includes a drive mechanism and two first support rods. One end of each first support rod is rotatably connected to the right end of the support frame, and the other end is movably connected to the left end of the base frame. A linkage frame is rotatably connected between the two first support rods. One end of the linkage frame is movably connected to the left end of the support frame, and the other end is rotatably connected to the right end of the base frame. One end of the drive mechanism is rotatably connected to the linkage frame, and the other end is rotatably connected to the left end of the base frame.

[0012] Furthermore, the linkage frame includes two second support rods, and a push-pull rod is fixedly connected in the middle between the two second support rods. One end of the drive mechanism is rotatably connected to the push-pull rod. The inner front and rear side walls of the base frame and the inner front and rear side walls of the support frame are all provided with wheel grooves. One end of the two second support rods and the other end of the two first support rods are rotatably mounted with rollers that roll along the corresponding wheel grooves.

[0013] Furthermore, the base frame is provided with positioning and mounting holes.

[0014] Furthermore, mounting brackets are installed on both the left and right sides of the frame.

[0015] Furthermore, an electronic ruler guard is installed on the top front side of the frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the novel safety pedal device according to an embodiment of the present invention; Figure 2 Embodiments of the present invention Figure 1 Top view; Figure 3 This is a schematic diagram of the protection mechanism according to an embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the protection mechanism according to an embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the telescopic support according to an embodiment of the present invention; Figure 6 Embodiments of the present invention Figure 1 Enlarged view of a portion of position A in the middle; Figure 7 This is a schematic diagram of the lifting mechanism according to an embodiment of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the lifting mechanism according to an embodiment of the present invention. Figure 2 ; Figure 9 This is a schematic diagram showing the connection state between the linkage frame and the first support rod according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the plate frame structure according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Frame; 2. Anti-slip plate; 3. Protective mechanism; 301. Plate frame; 3011. Insertion hole; 302. Protective plate; 303. Telescopic support; 3031. Support base plate; 3032. Support cylinder; 3033. Buffer spring; 3034. Guide column; 3035. Stand block; 3036. Bracket; 304. Limit switch; 305. Guide component; 3051. Guide sleeve; 3052. Ear seat; 3053. Rubber pad; 3054. Fastener; 4. Electronic ruler cover; 5. Lifting mechanism; 501. Base frame; 502. Support frame; 503. Drive mechanism; 504. First support rod; 505. Linkage frame; 5051. Second support rod; 5052. Push-pull rod; 5053. Stabilizer; 506. Wheel groove; 507. Roller; 508. Positioning mounting hole; 6. Fixing frame. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit the use of open-ended terms such as "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", 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 invention 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 invention.

[0021] Furthermore, in the attached diagram, the X-axis represents the vertical direction, that is, the front-to-back position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the back. In the attached diagram, the Y-axis represents the horizontal direction, that is, the left-to-right position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the left, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the right. In the attached diagram, the Z-axis represents the vertical direction, that is, the up-to-down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0022] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, components, or groups of features, integers, steps, or components.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] See Figure 1 and Figure 2 A novel safety pedal device according to an embodiment of the present invention includes a frame 1 with an oil tank and a control unit. The top of the frame 1 is sequentially equipped with an anti-slip plate 2 for stepping and a protective mechanism 3 connected to the control unit, which is used to carry debris and stop the injection molding machine when the debris is too heavy. A lifting mechanism 5 for raising and lowering the anti-slip plate 2 is provided below it. Both the protection mechanism 3 and the lifting mechanism 5 are located above the oil tank on the frame 1.

[0027] In this embodiment, the novel safety pedal device covers the oil tank on the frame 1 using the anti-slip plate 2 and the protective mechanism 3, thereby protecting the oil tank and preventing debris from falling into it and causing pollution. When debris or other debris falls from the sprue, it falls onto the protective mechanism 3 and is supported by it. When the debris accumulates to an excessive weight, the control unit stops the injection molding machine. At this time, the operator can adjust the height of the anti-slip plate 2 using the lifting mechanism 5, allowing the operator to safely and smoothly step onto the anti-slip plate 2 from the outside. The lifting mechanism 5 continuously adjusts the position of the anti-slip plate 2 to clear the debris on the protective mechanism 3 to the outside of the injection molding machine, thus facilitating the safe entry and exit of operators for debris cleaning. At the same time, when repairing the mold on the injection molding machine, the operator can also adjust the position of the anti-slip plate 2 using the lifting mechanism 5, allowing the operator to step on the anti-slip plate 2 for easy and convenient mold repair.

[0028] See Figure 3 and Figure 4 Optionally, the protection mechanism 3 includes a plate frame 301 and a limit switch 304. A protection plate 302 is installed on the top of the plate frame 301, and telescopic supports 303 are evenly installed on the bottom of the plate frame 301. The limit switch 304 is installed on the side of the telescopic support 303. The limit switch 304 is connected to the electrical signal output of the control unit, and the control unit controls the start and stop of the injection molding machine.

[0029] In this embodiment, when debris or other foreign objects fall from the equipment's sprue, they fall directly onto the protective plate 302, where they are supported and prevented from falling into the oil tank. As the debris accumulates on the protective plate 302, it presses down on the protective plate 302 and the plate frame 301, causing them to sink. This sinks down onto the telescopic support 303, causing it to contract. When a certain weight is reached, the protective plate 302 and the plate frame 301 sink to the position of the limit switch 304, triggering the limit switch 304. The limit switch 304 acts as an "input sensor," converting the mechanical action into an electrical signal and sending it to the control unit. The control unit receives the signal and outputs instructions according to a preset program to stop the injection molding machine, thus facilitating the subsequent cleaning of the debris on the protective plate 302 by the workers.

[0030] Specifically, two protective mechanisms 3 are preferably installed in the area above the oil tank on the frame 1 so that as much debris as possible falls onto the protective mechanisms 3.

[0031] See Figure 4 and Figure 5 Optionally, the telescopic support 303 includes a support base plate 3031, a guide column 3034, and a buffer spring 3033. The top of the support base plate 3031 is fixedly connected to the support cylinder 3032. The top of the guide column 3034 is movably connected to the bottom of the plate frame 301, and the bottom of the guide column 3034 is fixedly connected to the bottom of the inner cavity of the support cylinder 3032. The buffer spring 3033 is sleeved on the outside of the guide column 3034, with one end abutting against the bottom of the plate frame 301 and the other end abutting against the bottom of the inner cavity of the support cylinder 3032. A support block 3035 is fixedly installed on the inner side of the support base plate 3031, and a bracket 3036 is installed on the support block 3035. A limit switch 304 is installed on the top of the bracket 3036.

[0032] In this embodiment, the entire protection mechanism 3 is positioned and supported by installing the support base plate 3031 at the oil tank of the frame 1. The limit switch 304 is further supported and installed on the side of the telescopic support 303 by the upright block 3035 and the bracket 3036. When debris accumulates on the protection plate 302 and presses the protection plate 302 and the plate frame 301 down together, the plate frame 301 gradually presses down on the buffer spring 3033 to make it contract. The gradual elastic contraction of the buffer spring 3033 buffers the protection plate 302 and the plate frame 301 when they sink, thus improving stability.

[0033] Specifically, the plate frame 301 is provided with an insertion hole 3011 that cooperates with the guide post 3034. As the protective plate 302 and the plate frame 301 gradually sink together, the top of the guide post 3034 is continuously inserted into the insertion hole 3011.

[0034] See Figure 3 and Figure 6 Optionally, guide members 305 are provided on both the front and rear sides of the plate frame 301. Each guide member includes a guide sleeve 3051, a fastener 3054, and an ear seat 3052 fixedly connected to the plate frame 301. The ear seat 3052 is movably sleeved on the outside of the guide sleeve 3051. A rubber pad 3053 is sleeved on the lower outer end of the guide sleeve 3051. The threaded end of the fastener 3054 passes through the guide sleeve 3051 and is connected to the frame 1.

[0035] In this embodiment, when the plate frame 301 moves up and down, it drives the ear seat 3052 to slide up and down on the guide sleeve 3051. The guide sleeve 3051 guides the vertical movement, and the fastener 3054 limits the upward movement, which further facilitates the upward movement and limitation of the protective plate 302. When the plate frame 301 moves down to contact the frame 1, it makes flexible contact through the rubber pad 3053 to avoid rigid collision with the frame 1.

[0036] See Figure 7 and Figure 8 Optionally, the lifting mechanism 5 includes a base frame 501 and a support frame 502. The anti-slip plate 2 is fixedly installed on the top of the support frame 502. A scissor lift is installed between the base frame 501 and the support frame 502 to drive the support frame 502 to move vertically away from or towards the base frame 501.

[0037] In this embodiment, the support frame 502 is moved vertically up and down on the base frame 501 by a scissor-type lifting device, thereby facilitating the lifting and lowering of the anti-slip plate 2.

[0038] See Figure 7 and Figure 8 Optionally, the scissor lift includes a drive mechanism 503 and two first support rods 504. One end of the first support rod 504 is rotatably connected to the right end of the support frame 502, and the other end is movably connected to the left end of the base frame 501. A linkage frame 505 is rotatably connected between the two first support rods 504. One end of the linkage frame 505 is movably connected to the left end of the support frame 502, and the other end is rotatably connected to the right end of the base frame 501. One end of the drive mechanism 503 is rotatably connected to the linkage frame 505, and the other end is rotatably connected to the left end of the base frame 501.

[0039] In this embodiment, the drive mechanism 503 extends and retracts and rotates on the base frame 501 and the linkage frame 505, thereby driving the linkage frame 505 to rotate between the two first support rods 504, as well as to rotate on the base frame 501 and move on the support frame 502. Simultaneously, it drives one end of the two first support rods 504 to rotate on the support frame 502, and the other end to move synchronously with the linkage frame 505 on the base frame 501. This achieves scissor-like opening and closing between the first support rods 504 and the linkage frame 505, thereby facilitating the vertical movement of the support frame 502 on the base frame 501.

[0040] The drive mechanism 503 can be a telescopic cylinder such as a hydraulic cylinder or a pneumatic cylinder, or a telescopic motor, etc.

[0041] See Figure 8 and Figure 9Optionally, the linkage frame 505 includes two second support rods 5051, and a push-pull rod 5052 is fixedly connected in the middle between the two second support rods 5051. One end of the drive mechanism 503 is rotatably connected to the push-pull rod 5052. Wheel grooves 506 are provided on the front and rear side walls of the base frame 501 and the front and rear side walls of the support frame 502. Rollers 507 that roll along the corresponding wheel grooves 506 are rotatably installed on one end of the two second support rods 5051 and the other end of the two first support rods 504.

[0042] In this embodiment, the force generated by the extension and retraction of the drive mechanism 503 acts on the push-pull rod 5052 of the linkage frame 505, thereby pushing and pulling the linkage frame 505 to work. Specifically, one end of the second support rod 5051 is driven to roll in the wheel groove 506 on the support frame 502 via the roller 507, while the other end rotates at the right end of the base frame 501; and one end of the first support rod 504 is driven to rotate at the right end of the support frame 502, while the other end rolls in the wheel groove 506 on the base frame 501 via the roller 507.

[0043] Specifically, the middle parts of the two second support rods 5051 on the opposite sides are rotatably connected to the middle parts of the corresponding first support rods 504 to ensure that the support frame 502 is raised and lowered horizontally; A stabilizing rod 5053 is fixedly connected between one end of the two second support rods 5051. The stabilizing rod 5053 provides stable support between one end of the two second support rods 5051 to prevent the roller 507 from falling out of the wheel groove 506 due to deformation under force.

[0044] See Figure 8 Optionally, the base frame 501 is provided with positioning and mounting holes 508.

[0045] In this embodiment, the positioning mounting hole 508 is used in conjunction with fasteners (bolts, screws, screws, etc.) to facilitate the installation of the base frame 501 at the oil tank of the frame 1, and further facilitates the installation of the lifting mechanism 5 at the oil tank of the frame 1, so that the anti-slip plate 2 installed at the oil tank of the frame 1 can be lifted and lowered.

[0046] See Figure 1 Optionally, a mounting bracket 6 is installed on both the left and right sides of the frame 1.

[0047] In this embodiment, the fixing bracket 6 is used in conjunction with fasteners (bolts, screws, screws, etc.) to facilitate the installation and fixing of the entire pedal device under the mold opening and closing of the injection molding machine.

[0048] See Figure 1 Optionally, an electronic ruler guard 4 is installed on the top front side of the frame 1.

[0049] In this embodiment, during the production process, when the mold is changed, the product is removed, or the equipment is maintained, the robot arm, the lifting device, or the operator may accidentally collide with the electronic ruler. The electronic ruler is shielded and protected by the electronic ruler cover 4 to prevent foreign object impact and mechanical damage.

[0050] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A novel safety pedal device, characterized in that, The machine includes a frame (1) with an oil tank and a control unit. The top of the frame (1) is sequentially equipped with a step-on anti-slip plate (2) and a protection mechanism (3) connected to the control unit, which are used to carry debris and stop the injection molding machine when the debris is too heavy. The anti-slip plate (2) is provided with a lifting mechanism (5) for raising and lowering it. The protection mechanism (3) and the lifting mechanism (5) are both located above the oil tank on the frame (1).

2. The novel safety pedal device according to claim 1, characterized in that, The protection mechanism (3) includes a plate frame (301) and a limit switch (304). A protective plate (302) is installed on the top of the plate frame (301), and telescopic supports (303) are evenly installed on the bottom of the plate frame (301). The limit switch (304) is installed on the side of the telescopic support (303). The limit switch (304) is connected to the electrical signal output of the control unit. The control unit controls the start and stop of the injection molding machine.

3. The novel safety pedal device according to claim 2, characterized in that, The telescopic support (303) includes a support base plate (3031), a guide column (3034), and a buffer spring (3033). The top of the support base plate (3031) is fixedly connected to a support cylinder (3032). The top of the guide column (3034) is movably connected to the bottom of the plate frame (301). The bottom of the guide column (3034) is fixedly connected to the bottom of the inner cavity of the support cylinder (3032). The buffer spring (3033) is sleeved on the outside of the guide column (3034). One end of the spring abuts against the bottom of the plate frame (301), and the other end abuts against the bottom of the inner cavity of the support cylinder (3032). A support block (3035) is fixedly installed on the inner side of the support base plate (3031), and a bracket (3036) is installed on the support block (3035). The limit switch (304) is installed on the top of the bracket (3036).

4. The novel safety pedal device according to claim 2, characterized in that, The front and rear sides of the plate frame (301) are provided with guide components (305), which include guide sleeves (3051), fasteners (3054), and ear seats (3052) fixedly connected to the plate frame (301). The ear seats (3052) are movably sleeved on the outside of the guide sleeves (3051). A rubber pad (3053) is sleeved on the lower outer end of the guide sleeves (3051). The threaded end of the fasteners (3054) passes through the guide sleeves (3051) and is connected to the frame (1).

5. The novel safety pedal device according to claim 1, characterized in that, The lifting mechanism (5) includes a base frame (501) and a support frame (502). The anti-slip plate (2) is fixedly installed on the top of the support frame (502). A scissor lift is installed between the base frame (501) and the support frame (502) to drive the support frame (502) to move vertically away from or closer to the base frame (501).

6. The novel safety pedal device according to claim 5, characterized in that, The scissor lift includes a drive mechanism (503) and two first support rods (504). One end of the first support rod (504) is rotatably connected to the right end of the support frame (502), and the other end is movably connected to the left end of the base frame (501). A linkage frame (505) is rotatably connected between the two first support rods (504). One end of the linkage frame (505) is movably connected to the left end of the support frame (502), and the other end is rotatably connected to the right end of the base frame (501). One end of the drive mechanism (503) is rotatably connected to the linkage frame (505), and the other end is rotatably connected to the left end of the base frame (501).

7. The novel safety pedal device according to claim 6, characterized in that, The linkage frame (505) includes two second support rods (5051), and a push-pull rod (5052) is fixedly connected in the middle between the two second support rods (5051). One end of the drive mechanism (503) is rotatably connected to the push-pull rod (5052). Wheel grooves (506) are provided on the inner front and rear side walls of the base frame (501) and the inner front and rear side walls of the support frame (502). Rollers (507) that roll along the corresponding wheel grooves (507) are rotatably installed on one end of the two second support rods (5051) and the other end of the two first support rods (504).

8. The novel safety pedal device according to claim 7, characterized in that, The base frame (501) is provided with positioning and mounting holes (508).

9. The novel safety pedal device according to claim 1, characterized in that, The frame (1) is equipped with a fixing frame (6) on both the left and right sides.

10. The novel safety pedal device according to claim 1, characterized in that, An electronic ruler guard (4) is installed on the top front side of the frame (1).

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