Anti-pinch sealing strip for sliding plug door

Abstract

The utility model discloses an anti-pinch sealing strip for a sliding plug door in the technical field of sealing strips, which comprises a first connecting frame and a second connecting frame, one side of the first connecting frame is fixedly connected with a groove part, one side of the second connecting frame is fixedly connected with a convex part, the first connecting frame and the second connecting frame are respectively provided with a mounting groove, and the convex part is fixedly connected with the groove part. And an anti-pinch device is fixedly connected to the interior of the mounting groove. Silicone rubber elastomer cavity parts are arranged on the two sides in the rubber sleeve and are integrated with a first electrode and a second electrode respectively, and an independent circuit is formed. The first connecting frame and the second connecting frame are each provided with an independent anti-pinch device, and even if the device on one side loses efficacy, the other side can still normally respond to an obstacle. When any side is extruded, the corresponding electrodes are contacted and conducted, an anti-pinch signal is triggered, and full-circumferential anti-pinch covering is achieved through symmetrical layout of the elastic strips on the two sides and the electrodes.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip technology, and in particular to an anti-pinch sealing strip for sliding doors. Background Technology

[0002] Sliding doors have excellent sealing performance, which can reduce the energy consumption of passenger compartment air conditioning. They also provide good shielding against rainwater and dust, and have an anti-pinch function during the movement of the door leaf. Therefore, sliding doors are widely used in trams and buses.

[0003] Existing anti-pinch strips use a single-sided anti-pinch structure, meaning one side has an anti-pinch sensor strip connected to the program control box via wiring harness. When the door encounters an obstacle during movement, it contacts the other side (without the anti-pinch sensor strip), triggering an anti-pinch signal and causing the sliding door to open promptly to prevent passengers from being trapped. However, this structure has drawbacks such as slow sensing and incomplete functionality. If an obstacle directly contacts the side without the anti-pinch sensor strip, or if the single-sided anti-pinch structure malfunctions, the anti-pinch function cannot be activated in a timely manner. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-pinch sealing strip for sliding doors.

[0005] The purpose of this utility model is achieved as follows: A sealing strip for a sliding door with anti-pinch function includes a first connecting frame and a second connecting frame. A groove is fixedly connected to one side of the first connecting frame, and a protrusion is fixedly connected to one side of the second connecting frame. Both the first and second connecting frames have mounting grooves. An anti-pinch device is fixedly connected inside the mounting groove. The anti-pinch device includes a rubber sleeve. A first mounting block is fixedly connected to one side of the inside of the rubber sleeve, and a second mounting block is fixedly connected to the other side of the inside of the rubber sleeve. A first electrode is connected to the first mounting block, and a second electrode is connected to the second mounting block. An elastic strip is fixedly connected inside the rubber sleeve.

[0006] The number of elastic strips is set to two, and the elastic strips are respectively arranged on both sides of the inside of the rubber sleeve. The elastic strips are made of silicone rubber elastomers, and the silicone rubber elastomers have cavities inside.

[0007] Both the first connecting frame and the second connecting frame are provided with inclined plates, and thickened plates are fixedly connected inside the first connecting frame and the second connecting frame respectively.

[0008] The lower part of the thickened plate is fixedly connected to a bending clamp, and the number of bending clamps is set to two.

[0009] The first mounting block has an integrally formed raised part, and the raised part has a placement groove. The first electrode is placed inside the placement groove, and a first wire passes through the raised part. The first wire is electrically connected to the first electrode.

[0010] A second wire is passed through and fixedly connected to the second mounting block, and the second wire is electrically connected to the second electrode.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Both sides of the rubber sleeve are provided with silicone rubber elastomers containing cavities, integrating a first electrode and a second electrode respectively, forming independent circuit paths. Both the first and second connecting frames are equipped with independent anti-pinch devices, ensuring that even if one side fails, the other side can still respond normally to obstacles. When either side is squeezed, the corresponding electrode contacts and conducts, triggering the anti-pinch signal. The symmetrical layout of the elastic strips and electrodes on both sides achieves full-circumferential anti-pinch coverage. When an obstacle contacts any side strip, the deformation of the cavity silicone rubber elastomer causes the electrode to conduct, solving the problem of single-sided structure failure on the non-sensing side. For example, when a passenger's arm simultaneously touches both sides of the door leaf, both electrodes can be triggered synchronously, avoiding the risk of missed detection due to single-sided triggering in the prior art. The modular design allows for independent replacement of the rubber sleeve, reducing maintenance costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the first connecting frame segment structure in this utility model.

[0015] Figure 3 This is a schematic diagram of the second mounting block structure in this utility model.

[0016] Figure 4 This is a schematic diagram of the first mounting block structure in this utility model.

[0017] In the figure: 1. First connecting frame; 2. Second connecting frame; 3. Protrusion; 4. Groove; 5. Anti-pinch device; 51. Rubber sleeve; 52. Elastic strip; 53. Second mounting block; 54. First mounting block; 6. Inclined plate; 7. Bending plate; 8. Second wire; 9. Second electrode; 10. First wire; 11. Heightened part; 12. First electrode; 13. Placement groove; 14. Thickened plate. Detailed Implementation

[0018] 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.

[0019] like Figure 1-4 The slide door anti-pinch sealing strip shown includes a first connecting frame 1 and a second connecting frame 2. The first connecting frame 1 and the second connecting frame 2 are respectively connected to two slide doors. A groove 4 is fixedly connected to one side of the first connecting frame 1, and a protrusion 3 is fixedly connected to one side of the second connecting frame 2. When the slide door is closed, the protrusion 3 and the groove 4 can be engaged with each other.

[0020] Both the first connecting frame 1 and the second connecting frame 2 are provided with mounting grooves. The inside of the mounting grooves is connected with an anti-pinch device 5 by glue. This modular design facilitates maintenance and replacement.

[0021] The anti-pinch device 5 includes a rubber sleeve 51. A first mounting block 54 is fixedly connected to one side of the inside of the rubber sleeve 51, and a second mounting block 53 is fixedly connected to the other side of the inside of the rubber sleeve 51. A first electrode 12 is connected to the first mounting block 54, and a second electrode 9 is connected to the second mounting block 53. When the first electrode 12 and the second electrode 9 come into contact, a current signal is generated. The signal is sent to the control box through the first wire 10 and the second wire 8 to trigger the door to move in the opposite direction.

[0022] An elastic strip 52 is fixedly connected inside the rubber sleeve 51. There are two elastic strips 52, which are respectively located on both sides inside the rubber sleeve 51. The elastic strip 52 is a silicone rubber elastomer with a cavity inside. The design of the elastic strip 52 allows the rubber sleeve 51 to quickly return to its shape when there is no force, preventing the first electrode 12 and the second electrode 9 from being continuously conductive.

[0023] Both the first connecting frame 1 and the second connecting frame 2 are provided with inclined plate portions 6, and thickened plates 14 are fixedly connected inside the first connecting frame 1 and the second connecting frame 2 respectively.

[0024] The lower part of the thickened plate 14 is fixedly connected with a bending clamp 7. The number of bending clamps 7 is set to two, and the bending clamps 7 are used to engage with the frame of the sliding door.

[0025] The first mounting block 54 has an integrally formed raised part 11, and a placement groove 13 is provided on the raised part 11. The first electrode 12 is disposed inside the placement groove 13. A first wire 10 passes through the raised part 11 and is electrically connected to the first electrode 12.

[0026] A second wire 8 is passed through and fixedly connected to the second mounting block 53, and the second wire 8 is electrically connected to the second electrode 9.

[0027] Working principle: The first connecting frame 1 and the second connecting frame 2 are connected to the two sliding doors through the inclined plate 6 and the bending plate 7, respectively. When an obstacle, such as a passenger's limb, comes into contact with either side of the first connecting frame 1 or the second connecting frame 2, the rubber sleeve 51 deforms due to compression.

[0028] The space inside the rubber sleeve 51 is compressed, which pushes the first electrode 12 and the second electrode 9 to make contact and conduction. An electrical signal is sent to the control box through the first wire 10 or the second wire 8, triggering the door to move in the opposite direction.

[0029] If the anti-pinch device 5 on one side fails, such as a set of electrodes malfunctioning, the set of electrodes on the other side can still respond independently to the obstacle, ensuring that the anti-pinch function is not interrupted.

[0030] The thickened plate 14 and the bent clamping plate 7 enhance the fatigue resistance of the connecting frame and prevent the elastic strip 52 from becoming less sensitive due to long-term compression.

[0031] The groove 4 and the protrusion 3 fit tightly together when the door is closed, maintaining a sealing effect.

[0032] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A anti-pinch sealing strip for a sliding door, comprising a first connecting frame (1) and a second connecting frame (2), characterized in that: A groove (4) is fixedly connected to one side of the first connecting frame (1), and a protrusion (3) is fixedly connected to one side of the second connecting frame (2). Both the first connecting frame (1) and the second connecting frame (2) are provided with mounting grooves. An anti-pinch device (5) is fixedly connected inside the mounting groove. The anti-pinch device (5) includes a rubber sleeve (51). A first mounting block (54) is fixedly connected to one side of the inside of the rubber sleeve (51), and a second mounting block (53) is fixedly connected to the other side of the inside of the rubber sleeve (51). A first electrode (12) is connected to the first mounting block (54), and a second electrode (9) is connected to the second mounting block (53). An elastic strip (52) is fixedly connected inside the rubber sleeve (51).

2. The anti-pinch sealing strip for a sliding door according to claim 1, characterized in that: The number of elastic strips (52) is set to two. The elastic strips (52) are respectively arranged on both sides inside the rubber sleeve (51). The elastic strips (52) are silicone rubber elastomers, and the silicone rubber elastomers have a cavity inside.

3. The anti-pinch sealing strip for a sliding door according to claim 1, characterized in that: Both the first connecting frame (1) and the second connecting frame (2) are provided with inclined plate portions (6), and thickened plates (14) are fixedly connected inside the first connecting frame (1) and the second connecting frame (2).

4. The anti-pinch sealing strip for a sliding door according to claim 3, characterized in that: The lower part of the thickened plate (14) is fixedly connected to a bending plate (7), and the number of bending plates (7) is set to two.

5. The anti-pinch sealing strip for a sliding door according to claim 1, characterized in that: The first mounting block (54) has an integrally formed raised part (11), and the raised part (11) has a placement groove (13). The first electrode (12) is disposed inside the placement groove (13). A first wire (10) passes through the raised part (11), and the first wire (10) is electrically connected to the first electrode (12).

6. The anti-pinch sealing strip for a sliding door according to claim 1, characterized in that: A second wire (8) is passed through and fixedly connected to the second mounting block (53), and the second wire (8) is electrically connected to the second electrode (9).

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