A new structure based on a safety pressure-sensitive edge switch

Abstract

The utility model discloses a novel structure based on safe pressure sensitive edge switch, including rubber cover, base, inner chamber, fixed block, tow structure, stiffness overcomes the bending part, rubber framework, deformation cavity, conductive sensing element, rubber cover rear end fixed base, the inner chamber opens in rubber cover inside, fixed block is fixed in the inner chamber rear end, the tow structure is installed respectively in fixed block upper and lower two ends, the stiffness overcomes the bending part and is formed on rubber cover upper and lower two ends through tow structure, rubber framework distributes in the inner chamber front end and fixed block front end, deformation cavity is installed in the front and rear rubber framework inner end, conductive sensing element distributes in the deformation cavity inside front and rear two ends. The utility model solves safe pressure sensitive edge switch trigger sensitivity to be related to whether the controlled equipment can make the timely response, in the collision force generation curve, the problem that safe pressure sensitive edge switch triggers the smaller force more early, can make the timely response more.

Description

Technical Field

[0001] This utility model relates to the field of safety switches, and in particular to a novel structure based on a safety pressure-sensitive edge switch. Background Technology

[0002] Safety pressure-sensitive edge switches are typically used in applications requiring the detection of contact or pressure, such as in automatic doors, machine guards, or safety mats. These switches are designed to ensure that when a person or object comes into contact with the edge on which the switch is mounted, a signal is quickly triggered to stop machine movement or perform other safety-related functions.

[0003] The trigger sensitivity of a safety pressure-sensitive edge switch is related to whether the controlled device can respond in a timely manner. In the collision force occurrence curve, the earlier the safety pressure-sensitive edge switch is triggered by a smaller force, the more timely the response can be. Utility Model Content

[0004] The purpose of this invention is to provide a novel structure based on a safety pressure-sensitive edge switch to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A novel structure based on a safety pressure-sensitive edge switch, comprising a rubber sleeve, a base, an inner cavity, a fixing block, a traction structure, a stiffness-overcoming bending portion, a rubber skeleton, a deformation cavity, and a conductive sensing element. The rear end of the rubber sleeve is fixed to the base, the inner cavity is opened inside the rubber sleeve, the fixing block is fixed to the rear end of the inner cavity, the traction structure is respectively installed at the upper and lower ends of the fixing block, the stiffness-overcoming bending portion is formed at the upper and lower ends of the rubber sleeve through the traction structure, the rubber skeleton is distributed at the front end of the inner cavity and the front end of the fixing block, the deformation cavity is installed at the inner ends of the front and rear rubber skeletons, and the conductive sensing element is distributed at the front and rear ends inside the deformation cavity.

[0006] Based on the above technical solution, the traction structure includes an installation block, a limiting groove, an installation plate, a traction rope, and a limiting head. The installation block is fixed to the upper and lower ends of the fixed block, the limiting groove is opened at the front end of the installation block, the installation plate is fixed to the front of the upper and lower ends of the inner cavity, the traction rope is fixed to the rear end of the installation plate, the limiting head is fixed to the rear end of the traction rope, and the traction rope is fixed to the limiting groove through the limiting head.

[0007] Based on the above technical solution, the stiffness overcoming the bending part continuously exists under the traction of the traction rope to overcome the stiffness of the upper and lower ends of the rubber sleeve.

[0008] Compared with the prior art, the present invention has the following advantages: The present invention overcomes the bending part by installing a traction structure inside the rubber sleeve to form rigidity, overcomes the rigidity and internal friction of the rubber sleeve in the flat state, and satisfies the force required for the straightening and orientation of the long-chain polymer molecules in the rubber in advance, reducing the force of the conductive sensing element in the collision-triggered deformation cavity and improving the sensitivity of the safety pressure-sensitive edge switch. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the appearance and structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the trigger state of this utility model.

[0011] Figure 3 This is a schematic diagram of the traction structure of this utility model.

[0012] In the diagram: 1. Rubber sleeve, 2. Base, 3. Inner cavity, 4. Fixing block, 5. Traction structure, 6. Stiffness overcoming bending part, 7. Rubber skeleton, 8. Deformation cavity, 9. Conductive sensing element, 10. Mounting block, 11. Limiting groove, 12. Mounting plate, 13. Traction rope, 14. Limiting head. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1 to 3 As shown, a novel structure based on a safety pressure-sensitive edge switch includes a rubber sleeve 1, a base 2, an inner cavity 3, a fixing block 4, a traction structure 5, a stiffness-overcoming bending portion 6, a rubber skeleton 7, a deformation cavity 8, and a conductive sensing element 9. The base 2 is fixed to the rear end of the rubber sleeve 1. The inner cavity 3 is opened inside the rubber sleeve 1. The fixing block 4 is fixed to the rear end of the inner cavity 3. The traction structure 5 is installed at the upper and lower ends of the fixing block 4. The stiffness-overcoming bending portion 6 is formed at the upper and lower ends of the rubber sleeve 1 through the traction structure 5. The rubber skeleton 7 is distributed at the front end of the inner cavity 3 and the front end of the fixing block 4. The deformation cavity 8 is installed at the inner ends of the front and rear rubber skeletons 7. The conductive sensing element 9 is distributed at the front and rear ends inside the deformation cavity 8.

[0015] The traction structure 5 includes a mounting block 10, a limiting groove 11, a mounting plate 12, a traction rope 13, and a limiting head 14. The mounting block 10 is fixed to the upper and lower ends of the fixing block 4, the limiting groove 11 is opened at the front end of the mounting block 10, the mounting plate 12 is fixed to the front of the upper and lower ends of the inner cavity 3, the traction rope 13 is fixed to the rear end of the mounting plate 12, and the limiting head 14 is fixed to the rear end of the traction rope 13, and the traction rope 13 is fixed to the limiting groove 11 through the limiting head 14.

[0016] The stiffness overcoming the bending part 6 under the traction of the traction rope 13 continuously overcomes the stiffness of the upper and lower ends of the rubber sleeve 1.

[0017] The working principle of this invention is as follows: Before a collision occurs, a traction structure 5 is installed inside the rubber sleeve 1 to form a stiffness-overcoming bending part 6. This overcomes the stiffness and internal friction of the rubber sleeve 1 in its flat state, pre-satisfying the force required for the straightening and orientation of the long-chain polymer molecules within the rubber. This reduces the force required to trigger the conductive sensing element in the deformation cavity during the collision. When a collision occurs, the rubber sleeve 1, under the influence of force, bends and deforms under the guidance of the stiffness-overcoming bending part 6, shortening the distance between the front and rear rubber skeletons 7. This compresses the deformation cavity 8, causing it to deform, and the conductive sensing element 9 contacts and triggers the switch. This achieves the triggering of the conductive sensing element in the deformation cavity by a relatively small force collision, improving the sensitivity of the safety pressure-sensitive edge switch.

[0018] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A new structure based on a safety pressure-sensitive edge switch, comprising a rubber sleeve (1), a base (2), an inner cavity (3), a fixed block (4), a traction structure (5), a stiffness overcoming bending part (6), a rubber skeleton (7), a deformation cavity (8), and a conductive sensing element (9), characterized in that: The rubber sleeve (1) is fixed to the rear end of the base (2), the inner cavity (3) is opened inside the rubber sleeve (1), the fixing block (4) is fixed to the rear end of the inner cavity (3), the traction structure (5) is installed at the upper and lower ends of the fixing block (4), the stiffness overcoming bending part (6) is formed at the upper and lower ends of the rubber sleeve (1) through the traction structure (5), the rubber skeleton (7) is distributed at the front end of the inner cavity (3) and the front end of the fixing block (4), the deformation cavity (8) is installed at the inner end of the front and rear rubber skeletons (7), and the conductive sensing element (9) is distributed at the front and rear ends inside the deformation cavity (8).

2. A novel structure based on a safety pressure sensitive edge switch according to claim 1, characterized in that: The traction structure (5) includes an mounting block (10), a limiting groove (11), a mounting plate (12), a traction rope (13), and a limiting head (14). The mounting block (10) is fixed to the upper and lower ends of the fixing block (4). The limiting groove (11) is opened at the front end of the mounting block (10). The mounting plate (12) is fixed to the front of the upper and lower ends of the inner cavity (3). The traction rope (13) is fixed to the rear end of the mounting plate (12). The limiting head (14) is fixed to the rear end of the traction rope (13), and the traction rope (13) is fixed to the limiting groove (11) through the limiting head (14).

3. A novel structure based on a safety pressure sensitive edge switch according to claim 2, characterized in that: The stiffness overcoming the bending part (6) under the traction of the traction rope (13) continuously overcomes the stiffness of the upper and lower ends of the rubber sleeve (1).

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