Induction anti-pinch mechanism of electric balance door

Abstract

The utility model discloses an electric balance door induction anti-pinch mechanism, which relates to the field of electric balance doors and comprises a door frame and two door plates, the two door plates are bilaterally symmetrically distributed between the door frame, one ends, far away from each other, of the two door plates are respectively hinged to two sides of the door frame, and an anti-pinch mechanism is fixedly mounted at the center of the top of the door frame. When the two door plates are closed, the anti-pinch mechanism is located on the inner side of the butt joint position of the top ends of the two door plates and attached to the inner sides of the two door plates. According to the electric balance door, articles can be prevented from being clamped when the electric balance door is closed through the anti-clamping mechanism, and therefore the safety of the electric balance door in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric balance gates, specifically to an electric balance gate sensing anti-pinch mechanism. Background Technology

[0002] Electric balancing doors are a type of high-efficiency door that combines mechanical balance principles with electric control technology. They are mainly used in building environments with strong winds (such as shopping malls, hotels, and hospitals) to achieve easy operation and intelligent control. Because electric balancing doors are intelligently controlled, a sensor is usually installed in the middle of the top of the door frame to prevent people or clothing items from being caught. This sensor can detect whether there is an object between the two door panels. Once an object is detected, the closing of the balancing door stops. However, if the door panels continue to close due to inertia when the balancing door stops closing, the object between the door panels may be caught. This makes the anti-pinch measure of the balancing door unstable and poses a significant danger. Therefore, this application proposes an electric balancing door sensor anti-pinch mechanism. Utility Model Content

[0003] In view of the problems existing in the current electric balance door sensor anti-pinch mechanism, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide an anti-pinch mechanism for electric balance doors, which solves the problem that the anti-pinch safety measures of common electric balance doors are not complete during the closing process, and cannot further improve the anti-pinch safety.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an electric balance door induction anti-pinch mechanism, comprising a door frame and two door panels, the two door panels being symmetrically distributed between the door frame, and the ends of the two door panels that are far apart from each other being hinged to the two sides of the door frame respectively, and an anti-pinch mechanism being fixedly installed at the center of the top of the door frame, when the two door panels are closed, the anti-pinch mechanism is located on the inner side of the joint at the top of the two door panels and is in contact with the inner side of the two door panels.

[0006] Preferably, the anti-pinch mechanism includes a fixed block, two top rods, two limiting blocks, two first pressing blocks, two limiting rods, and a second pressing block. The fixed block has rod grooves at both ends near the door panel. The two top rods are movably inserted into the two rod grooves, and grooves are formed at the bottom of each rod groove. The two limiting blocks are movably inserted into the two grooves, and the tops of the two limiting blocks are arc-shaped and abut against the bottom of the corresponding top rods. A plate groove is formed inside the fixed block between the two rod grooves, and grooves are formed at both ends of the plate groove. Two through holes are connected to the rod grooves. Two first extrusion blocks are symmetrically distributed at both ends inside the plate groove. Two limiting rods are fixedly installed at the ends of the two first extrusion blocks near the rod grooves. Limiting grooves with corresponding through holes are opened on the sides of the two top rods. The ends of the two limiting rods away from the first extrusion blocks pass through the through holes and are respectively engaged in the limiting grooves on the side walls of the corresponding top rods. An inner groove is opened at the center of the top of the plate groove. The second extrusion block is located in the inner groove, and the bottom end of the second extrusion block applies pressure to the ends of the two first extrusion blocks away from the limiting rods.

[0007] Preferably, a first spring is fixedly connected between the inner ends of the two rod grooves and the corresponding top rods, a second spring is fixedly connected between the bottom of the two grooves and the bottom end of the corresponding limiting block, and a third spring sleeved on the limiting rod is fixedly connected between the two ends of the plate groove and the corresponding first extrusion block.

[0008] Preferably, the top corners of the first extrusion blocks that are close to each other are provided with inclined surfaces one, and the two corners of the bottom of the second extrusion block are provided with inclined surfaces two. The two inclined surfaces two at the bottom of the second extrusion block respectively abut against the inclined surfaces one at one end of the two first extrusion blocks. A hydraulic rod is fixedly installed on the top of the fixing block, and the telescopic end of the hydraulic rod extends into the inner groove and is fixedly connected to the top of the second extrusion block.

[0009] Preferably, the top of the inner wall of both rod grooves is provided with a sliding groove, and the top of the inner end of both top rods is fixedly installed with a slider, and the sliders at the top of the two top rods are respectively located in the sliding grooves at the top of the inner wall of the two rod grooves and can slide inside them.

[0010] Preferably, the bottom of the fixing block has two openings, which are connected to two grooves respectively, and the bottom of the two limiting blocks is provided with a screw groove aligned with the position of the opening.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0012] The sensor on the balance door senses the space between the two door panels. When an object is between the two door panels while they are closed, the sensor sends a signal to the hydraulic rod at the top of the fixed block in the anti-pinch mechanism. By controlling the hydraulic rod, the second pressing block moves upward into the inner groove, causing the two push rods in the anti-pinch mechanism to extend out of their grooves. The parts of the push rods extending out of their grooves can press against the door panels, preventing the two door panels from closing completely and thus preventing objects from being pinched. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the anti-pinch mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the anti-pinch mechanism of this utility model;

[0017] Figure 4 This is an exploded view of the anti-pinch mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the plate groove and the rod groove of this utility model;

[0019] Figure 6 This is a cross-sectional structural diagram of the connection between the fixing block and the top rod of this utility model;

[0020] Figure 7 This is a cross-sectional structural diagram of the fixing block of this utility model;

[0021] Figure 8 This is a schematic diagram of the structure of the limiting block of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Door frame; 2. Door panel; 3. Anti-pinch mechanism; 31. Fixing block; 32. Top rod; 33. Limiting block; 34. First pressing block; 35. Limiting rod; 36. Second pressing block; 37. Hydraulic rod; 4. Rod groove; 5. First spring; 6. Groove; 7. Second spring; 8. Plate groove; 9. Through hole; 10. Limiting groove; 11. Third spring; 12. Inner groove; 13. Slider; 14. Slide groove; 15. Threaded groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-8 The electric balance door induction anti-pinch mechanism shown includes a door frame 1 and two door panels 2. The two door panels 2 are symmetrically distributed between the door frame 1, and the ends of the two door panels 2 that are far apart from each other are respectively hinged to the two sides of the door frame 1. An anti-pinch mechanism 3 is fixedly installed at the center of the top of the door frame 1. When the two door panels 2 are closed, the anti-pinch mechanism 3 is located on the inner side of the joint at the top of the two door panels 2 and fits against the inner side of the two door panels 2.

[0026] In order for the anti-pinch mechanism 3 to achieve the anti-pinch effect, such as Figures 3-8As shown, the anti-pinch mechanism 3 includes a fixed block 31, two top rods 32, two limiting blocks 33, two first pressing blocks 34, two limiting rods 35, and a second pressing block 36. The fixed block 31 has rod grooves 4 at both ends near the door panel 2. The two top rods 32 are movably inserted into the two rod grooves 4, and grooves 6 are formed at the bottom of the two rod grooves 4. The two limiting blocks 33 are movably inserted into the two grooves 6, and the tops of the two limiting blocks 33 are arc-shaped and abut against the bottom of the corresponding top rods 32. A plate groove 8 is formed inside the fixed block 31 between the two rod grooves 4, and grooves are formed at both ends of the plate groove 8. A through hole 9 connects to two rod grooves 4. Two first extrusion blocks 34 are symmetrically distributed at both ends inside the plate groove 8. Two limiting rods 35 are fixedly installed at the ends of the two first extrusion blocks 34 near the rod grooves 4. Limiting grooves 10 corresponding to the through holes 9 are opened on the sides of the two top rods 32. The ends of the two limiting rods 35 away from the first extrusion blocks 34 pass through the through holes 9 and are respectively engaged in the limiting grooves 10 on the side walls of the corresponding top rods 32. An inner groove 12 is opened at the center of the top of the plate groove 8. The second extrusion block 36 is located in the inner groove 12, and the bottom end of the second extrusion block 36 is opposite to the two first extrusion blocks 34 away from the limiting rods 35. Pressure is applied at one end, and the sensor on the balance door senses the space between the two door panels 2. When the two door panels 2 are closed and there is an object between them, the sensor transmits a signal to the hydraulic rod 37 at the top of the fixed block 31 in the anti-pinch mechanism 3. By controlling the hydraulic rod 37, the second pressing block 36 is moved upward into the inner groove 12. In this way, the second pressing block 36 no longer presses against the two first pressing blocks 34. At this time, the two third springs 11 release their elasticity and push the first pressing block 34 and the limiting rod 35 into the plate groove 8, thereby disengaging one end of the two limiting rods 35 from the limiting groove 10 on the top rod 32. When the top rod 32 is no longer constrained, the first spring 5 in the two rod grooves 4 will release its elastic force to push the top rod 32 out of the rod groove 4. After the top rod 32 moves past the position of the groove 6, the limiting block 33 in the groove 6 is no longer squeezed by the top rod 32. At this time, the second spring 7 in the groove 6 will release its elastic force to push the limiting block 33 into the rod groove 4, so that the limiting block 33 extends into the rod groove 4 and is at the rear end of the two top rods 32. In this way, the top rod 32 cannot move into the rod groove 4, and the part of the top rod 32 that extends out of the rod groove 4 can push against the door panel 2, so that the two door panels 2 cannot be completely closed, thus preventing items from being pinched.

[0027] In order to successfully complete the linkage of the internal structure of the anti-pinch mechanism 3, such as Figure 3 and Figure 4As shown, a first spring 5 is fixedly connected between the inner ends of the two rod grooves 4 and the corresponding top rods 32. A second spring 7 is fixedly connected between the bottom of the two grooves 6 and the bottom of the corresponding limiting blocks 33. A third spring 11, sleeved on the limiting rods 35, is fixedly connected between the two ends of the plate grooves 8 and the corresponding first pressing blocks 34. The linkage of the structure can be realized through the first spring 5, the second spring 7 and the third spring 11.

[0028] In order for the second extrusion block 36 to apply pressure to the two first extrusion blocks 34, such as Figure 3 and Figure 4 As shown, the top corners of the first extrusion blocks 34 that are close to each other are each provided with a slope one, and the two corners of the bottom of the second extrusion block 36 are each provided with a slope two. The two slope two at the bottom of the second extrusion block 36 respectively abut against the slope one at one end of the two first extrusion blocks 34. A hydraulic rod 37 is fixedly installed on the top of the fixing block 31. The telescopic end of the hydraulic rod 37 extends into the inner groove 12 and is fixedly connected to the top of the second extrusion block 36. In this way, when the second extrusion block 36 moves upward, the first extrusion block 34 can drive the limiting rod 35 to move into the plate groove 8 under the action of the elastic force of the third spring 11.

[0029] To constrain the range of movement of the push rod 32 in the rod groove 4, such as Figure 6 As shown, the top of the inner wall of each of the two rod grooves 4 is provided with a sliding groove 14, and the top of the inner end of each of the two push rods 32 is fixedly installed with a slider 13. The slider 13 at the top of the two push rods 32 is located in the sliding groove 14 at the top of the inner wall of the two rod grooves 4 and can slide inside it. With the cooperation of the slider 13 and the sliding groove 14, the push rod 32 can be prevented from moving out of the rod groove 4.

[0030] Finally, in order to reset the position of the push rod 32 in the rod groove 4, such as Figure 3 and Figure 4 As shown, the bottom of the fixing block 31 has two openings, which are connected to two grooves 6 respectively. The bottom ends of the two limiting blocks 33 are provided with threaded grooves 15 aligned with the openings. By using a bolt tool to pass through the openings and thread it into the threaded grooves 15 at the bottom of the limiting block 33, the limiting block 33 is pulled down to return to the groove 6. Then, the top rod 32 is pressed back into the rod groove 4, and the hydraulic rod 37 is controlled to push the second extrusion block 36 into the plate groove 8, so that the second extrusion block 36 extrudes the two first extrusion blocks 34 again, so that the limiting rods 35 at one end of the two first extrusion blocks 34 are re-engaged in the limiting grooves 10 on the side wall of the corresponding top rod 32.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electric balancing door sensor anti-pinch mechanism, comprising a door frame (1) and two door panels (2), characterized in that: The two door panels (2) are symmetrically distributed between the door frame (1), and the ends of the two door panels (2) that are far apart from each other are respectively hinged to the two sides of the door frame (1). An anti-pinch mechanism (3) is fixedly installed at the center of the top of the door frame (1). When the two door panels (2) are closed, the anti-pinch mechanism (3) is located on the inner side of the joint of the top of the two door panels (2) and fits against the inner side of the two door panels (2).

2. The electric balance door sensor anti-pinch mechanism according to claim 1, characterized in that: The anti-pinch mechanism (3) includes a fixed block (31), two top rods (32), two limiting blocks (33), two first pressing blocks (34), two limiting rods (35), and a second pressing block (36). The fixed block (31) has rod grooves (4) at both ends near the door panel (2). The two top rods (32) are movably inserted into the two rod grooves (4). The bottom of the two rod grooves (4) is provided with a groove (6). The two limiting blocks (33) are movably inserted into the two grooves (6). The tops of the two limiting blocks (33) are arc-shaped and abut against the bottom of the corresponding top rods (32). A plate groove (8) is provided inside the fixed block (31) and between the two rod grooves (4). The two ends of the plate groove (8) are provided with grooves corresponding to the two rods. The groove (4) is connected to the through hole (9). Two first extrusion blocks (34) are symmetrically distributed at both ends inside the plate groove (8). Two limiting rods (35) are fixedly installed at the ends of the two first extrusion blocks (34) near the rod groove (4). Limiting grooves (10) corresponding to the through hole (9) are opened on the side of the two top rods (32). The ends of the two limiting rods (35) away from the first extrusion block (34) pass through the through hole (9) and are respectively engaged in the limiting grooves (10) on the side wall of the corresponding top rod (32). An inner groove (12) is opened at the center of the top of the plate groove (8). The second extrusion block (36) is located in the inner groove (12), and the bottom end of the second extrusion block (36) applies pressure to the ends of the two first extrusion blocks (34) away from the limiting rods (35).

3. The electric balance door sensor anti-pinch mechanism according to claim 2, characterized in that: A first spring (5) is fixedly connected between the inner ends of the two rod grooves (4) and the corresponding top rods (32). A second spring (7) is fixedly connected between the bottom of the two grooves (6) and the bottom of the corresponding limiting blocks (33). A third spring (11) sleeved on the limiting rod (35) is fixedly connected between the two ends of the plate groove (8) and the corresponding first pressing blocks (34).

4. The electric balance door sensor anti-pinch mechanism according to claim 2, characterized in that: The top corners of the first extrusion blocks (34) that are close to each other are all provided with a first slope, and the two corners at the bottom of the second extrusion block (36) are all provided with a second slope. The two second slopes at the bottom of the second extrusion block (36) respectively abut against the first slopes at one end of the two first extrusion blocks (34). A hydraulic rod (37) is fixedly installed on the top of the fixing block (31). The telescopic end of the hydraulic rod (37) extends into the inner groove (12) and is fixedly connected to the top of the second extrusion block (36).

5. The electric balance door sensor anti-pinch mechanism according to claim 2, characterized in that: The top of the inner wall of each of the two rod grooves (4) is provided with a sliding groove (14), and the top of the inner end of each of the two top rods (32) is fixedly installed with a slider (13). The sliders (13) at the top of the two top rods (32) are respectively located in the sliding grooves (14) at the top of the inner wall of the two rod grooves (4) and can slide inside them.

6. The electric balance door sensor anti-pinch mechanism according to claim 2, characterized in that: The bottom of the fixing block (31) has two openings, which are connected to two grooves (6) respectively. The bottom ends of the two limiting blocks (33) are provided with screw grooves (15) aligned with the openings.

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