Elastic operating head, door control equipment and safety door

Abstract

The utility model relates to the field of elevator safety control, in particular to an elastic operation head, door control equipment and a safety door. The elastic operating head comprises a contact and a base, and is characterized by further comprising an elastic sheet, the elastic sheet is arranged on the base; and the contact is supported by the elastic sheet. According to the scheme, the elastic sheet is arranged in the elastic operating head, so that certain elastic offset can be accommodated when the operating head is inserted into the door contact switch, the contact stability is enhanced, the problem of poor contact is solved, the cost is reduced, and the overall reliability is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of elevator safety control, and in particular, to a flexible operating head, a door control device and a safety door. BACKGROUND

[0002] The operating head and the door contact switch are commonly used in the car door and landing door mechanisms of elevators. The door contact switch cooperates with the operating head of the elevator door machine. With the opening and closing of the elevator door, the operating head controls the disconnection and conduction of the door contact switch.

[0003] Currently, most elevator door machines are equipped with rigid operating heads. The rigid operating head is a structure without movable parts and does not have execution force. The rigid operating head cannot achieve the buffering effect in the size range. The rigid operating head completely relies on the structure of the door contact switch to cooperate with the action and tolerance conditions of the elevator door machine.

[0004] However, in the long-term and frequent use of elevators, due to the repeated action of the door machine system and possible vibration, the cooperation between the existing rigid operating head and the door contact switch is prone to problems.

[0005] On the one hand, when the elevator door machine is running, due to different working conditions such as acceleration and deceleration processes, a certain impact force will be generated. The rigid operating head cannot buffer these impact forces, which makes the precise structure inside the door contact switch vulnerable to damage, for example, it can cause premature wear and deformation of the contact, and thus affect its accurate detection of the state of the elevator door, such as misjudging whether the door is completely closed or opened.

[0006] On the other hand, over time and with changes in the use environment, the tolerance of the elevator door machine itself can change slightly. The rigid operating head lacks the ability to adaptively adjust and cannot compensate for this tolerance change, which can lead to a decrease in the cooperation precision between the rigid operating head and the door contact switch. In extreme cases, the rigid operating head and the door contact switch may not be in effective contact, which can cause the elevator door control system to lose the ability to monitor the position of the door, seriously threatening the safe operation of the elevator. For example, the elevator control system may mistakenly believe that the door has not been completely closed, thereby preventing the elevator from running normally, reducing the efficiency of the elevator. Frequent misjudgments can also cause the elevator control system to frequently alarm, causing unnecessary troubleshooting work burden to maintenance personnel.

[0007] In addition, when the door contact switch is used as a mechanical limit illegally, the hard operating head will accelerate the damage of the door contact switch because it is not designed to bear the strong impact force and stress generated by the mechanical limit. The additional impact force caused by the hard operating head will deform the fine structure inside the switch when the elevator door is closed to the end of the stroke each time, further deteriorating the electrical contact condition. In the long run, not only will it cause the door contact switch to fail frequently, increasing maintenance and replacement costs, but in extreme cases, the damage to the switch may cause the elevator door to lose effective control, resulting in safety hazards such as the elevator door failing to close normally or opening abnormally, seriously threatening the safety of passengers.

[0008] Therefore, in order to improve the reliability and stability of the elevator door control system, it is necessary to improve the design of the existing operating head. Invention content

[0009] In order to solve at least one of the above technical problems, the present disclosure provides an elastic operating head, a door control device and a safety door.

[0010] According to an aspect of the present disclosure, an elastic operating head is provided, comprising a contact head and a base, further comprising:

[0011] a spring sheet;

[0012] The spring sheet is arranged on the base;

[0013] The spring sheet supports the contact head.

[0014] Optionally, the way the spring sheet is arranged on the base includes any one of the following: insertion, clamping, screwing, riveting, cementing, welding.

[0015] Optionally, the contact head comprises a contact head rod and a contact head seat;

[0016] The spring sheet has a contact surface that is shaped to fit the contact head seat.

[0017] Optionally, the minimum active spacing of the spring sheet supporting the contact head in the radial direction is 0 to 4 mm, and the maximum active spacing is 0 to 7 mm.

[0018] Optionally, further comprising:

[0019] a contact head guide positioning structure;

[0020] The contact head guide positioning structure is arranged on the base.

[0021] Optionally, the contact head guide positioning structure comprises:

[0022] a guide surface;

[0023] The guide surface is used to accommodate the movement of the contact head.

[0024] Optionally, the contact guiding positioning structure accommodates a minimum active distance of the contact in the transverse direction of 0 to 0.5 mm and a maximum active distance of 0 to 4 mm.

[0025] Optionally, the base has a spring mounting seat for mounting a spring.

[0026] The spring mounting seat is any one of the following: a clamping groove, a mounting seat, and a mounting hole.

[0027] Optionally, the spring surface has a coating.

[0028] Optionally, the number of springs is multiple, and the multiple springs are uniformly distributed on the base to support the contact.

[0029] According to another aspect of the present disclosure, a gate control device is provided, comprising the elastic operating head described above.

[0030] According to still another aspect of the present disclosure, a safety door is provided, characterized by comprising the gate control device described above.

[0031] Advantages

[0032] The elastic operating head provided by the embodiments of the present disclosure has the following advantages:

[0033] The improved elastic operating head scheme has the following significant advantages.

[0034] (I) Solving the problem of poor electrical contact

[0035] By optimizing the internal structure of the elastic operating head, we designed a special flexible mechanism. When the operating head is fully inserted into the switch body, it can accommodate a certain elastic offset. This flexible connection can be adjusted adaptively to ensure that the operating head and the switch always maintain stable and reliable contact. In this way, the phenomenon of poor electrical contact caused by insufficient mechanical movement redundancy is effectively eliminated, greatly improving the accuracy of signal transmission.

[0036] (II) Enhancing contact stability

[0037] The improved scheme uses elastic materials to complete the contact design. These designs enable the elastic operating head to maintain good contact performance with the door contact switch for a long time in various complex working environments, reducing failures caused by poor contact.

[0038] (III) Improving the problem caused by being illegally used as a mechanical limit

[0039] By redesigning the structure of the elastic operating head, the elastic operating head will not be affected by the impact force and stress generated by mechanical limiting when it is working normally. This fundamentally improves the problems caused by mistakenly using it as mechanical limiting, and improves the reliability and redundancy of the entire door control equipment.

[0040] (IV) Significant cost reduction

[0041] Traditional solutions may require complex mechanical structure adjustments or the use of high-cost special materials to solve the above problems. Our solution creatively uses elastic components. These elastic components are usually made of common and low-cost materials. They are widely supplied in the market, and the procurement cost is low.

[0042] In addition, the design of introducing elastic components greatly simplifies the production process. Reduces the labor cost and time cost in the production process, and reduces the dependence on high-end production equipment.

[0043] Further, the elastic component structure in the new solution is simple, and its maintenance and replacement operation when it fails is also extremely easy. Maintenance personnel do not need to have high professional skills or use special tools to complete the maintenance work, which reduces the maintenance cost.

[0044] (V) Improve overall performance and reliability

[0045] Due to the solution of the problems of poor contact with the operating head and illegal mechanical limiting, the overall wear and damage risk of the elastic operating head and the door contact switch is greatly reduced. The improved design can maintain stable performance during the long-term frequent operation of the elevator, reduce the frequency of maintenance and replacement, and effectively prolong the service life of the elastic operating head.

[0046] Stable and reliable elastic operating head ensures that the elevator control system can accurately obtain the state information of the elevator door, avoids the interruption or abnormality of the elevator operation caused by false signals. This makes the elevator run more efficiently, reduces passenger waiting time, and also provides a safer riding environment for passengers, improving the performance and quality of the entire elevator system.

[0047] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor to limit the scope of the present disclosure. Other features of the present disclosure will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0048] The accompanying drawings are used to better understand the present solution and do not limit the present disclosure. Among them:

[0049] Figure 1This is a schematic diagram of an existing elastic operating head application scenario;

[0050] Figure 2 This is a schematic diagram of an application scenario of an elastic operating head provided by an embodiment of the present disclosure;

[0051] Figure 3 This is a schematic diagram of the overall structure of an elastic operating head provided by an embodiment of the present disclosure;

[0052] Figure 4 is a schematic diagram of the upper surface of an elastic operating head provided by an embodiment of the present disclosure;

[0053] Figure 5 It is a schematic diagram of the lower surface of an elastic operating head provided in an embodiment of the present disclosure.

[0054] The accompanying drawings in the specific implementation manner are as follows:

[0055] Operating head 1; door contact switch 2; contact 110; base 120; spring 130; support member 140; contact guide and positioning structure 140. DETAILED DESCRIPTION

[0056] The following description of exemplary embodiments of the present disclosure is made in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0057] All technical terms used herein have the same meanings as those generally understood by those skilled in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "including" and "having" and any variations thereof in the specification and claims of the present disclosure and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0058] In the description of the embodiments of the present disclosure, the term “at least one” refers to one or more, and “a plurality of” refers to two or more (including two).

[0059] In the description of the embodiments of the present disclosure, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present disclosure.

[0060] Figure 1 An existing elastic operating head application scenario is shown.

[0061] The existing operating head 1 and the matching door contact switch 2 mainly work based on the principle of mechanical triggering and circuit on-off. In the elevator door system, it is usually installed on the car door or the landing door related structure.

[0062] When the elevator door is in the closed state, the operating head 1 on the door body gradually approaches and contacts the door contact switch 2 with the movement of the door. The operating head 1 will exert a certain pressure on the door contact switch 2, causing the mechanical structure inside the switch to move. This mechanical movement will cause the conductive contacts inside the switch to approach and contact each other, thereby making the circuit conductive. After the circuit is conductive, an electrical signal indicating that the elevator door has been closed will be sent to the elevator control system, and after the elevator control system receives the signal, it confirms that the elevator door is in a safe closed state, allowing the elevator to continue to run or perform the next operation, such as starting the elevator running program or opening the door lock and other related safety mechanisms.

[0063] However, when the elevator door machine is running, due to different working conditions such as acceleration and deceleration process, a certain impact force will be generated; over time and with changes in the use environment, the tolerance of the elevator door machine itself may change slightly; in addition, when the door contact switch is used illegally as a mechanical limit, since it is not specifically designed to withstand the strong impact force and stress generated by the mechanical limit, the hard operating head will accelerate the damage of the door contact switch. The above situations can easily lead to ineffective contact between the operating head 1 and the door contact switch 2, causing the elevator door control system to lose the ability to monitor the door position. In extreme cases, the damage to the switch may cause the elevator door to lose effective control, resulting in safety hazards such as the elevator door failing to close normally or opening abnormally.

[0064] When the elevator door needs to be opened, the operating head 1 gradually moves away from the door contact switch 2 as the door body moves. At this time, the mechanical reset device (such as a spring) inside the switch acts to separate the conductive contacts, and the circuit is disconnected. After the elevator control system receives the signal that the elastic operating head is disconnected, it knows that the elevator door is being opened, and accordingly adjusts the running state and control logic of the elevator, such as pausing certain operations related to the closed state of the door.

[0065] Figure 2 is a schematic diagram of an application scenario of an elastic operating head provided by an embodiment of the present disclosure.

[0066] The elastic operating head 1 differs from the existing operating head in that the elastic operating head 1 can provide a certain elastic offset through the built-in elastic sheet, thereby enhancing the stability of contact when the operating head 1 is inserted into the door contact switch 2, and improving the problem of poor contact.

[0067] When the elevator door is in a closed state, the elastic operating head 1 on the door body gradually approaches and contacts the door contact switch 2 as the door moves. The elastic operating head 1 exerts a certain pressure on the door contact switch 2, causing the mechanical structure inside the switch to act. The design of the elastic operating head 1 enables it to maintain good contact performance with the door contact switch for a long time in various complex working environments, so that the circuit can be stably turned on. After the circuit is turned on, an electrical signal indicating that the elevator door is closed is sent to the elevator control system, and after the elevator control system receives the signal, it confirms that the elevator door is in a safe closed state, allowing the elevator to continue to run or perform the next operation, such as starting the elevator running program or opening the door lock and other related safety mechanisms.

[0068] When the elevator door needs to be opened, the elastic operating head 1 gradually moves away from the door contact switch 2 as the door body moves. At this time, the mechanical reset device (such as a spring) inside the switch acts to separate the conductive contacts, and the circuit is disconnected. After the elevator control system receives the signal that the elastic operating head is disconnected, it knows that the elevator door is being opened, and accordingly adjusts the running state and control logic of the elevator, such as pausing certain operations related to the closed state of the door.

[0069] Figure 3 is a structural schematic diagram of an elastic operating head provided by an embodiment of the present disclosure.

[0070] As shown in Figure 3 , the elastic operating head 1 includes a contact head 110 and a base 120. The contact head 110 further includes a contact head rod 111 and a contact head seat 112.

[0071] In an embodiment, the contact head rod 111 and the contact head seat 112 are fixedly connected together to integrally form the contact head 110, ensuring that the contact head rod 111 does not fall off the contact head seat 112.

[0072] In one embodiment, the contact rod 111 is inserted into the contact seat 112, and the rod body portion of the contact rod 111 inside the contact seat 112 is bent, so that the contact rod 111 is not easy to be pulled out of the contact seat 112.

[0073] As shown in the drawings, in one embodiment, the base 120 forms a base accommodating space, and the contact seat 112 is located in the base accommodating space. Figure 3

[0074] In one embodiment, the base accommodating space has an opening 121, and the contact rod 111 extends out of the opening 121, and the upper portion of the contact rod 111 is located in the outer space of the base, so that when the contact 110 contacts the door contact switch 120, the upper portion of the contact rod 111 can be inserted into the door contact switch 120 to turn on the circuit of the door contact switch 120.

[0075] The opening 121 through which the contact rod 111 extends has a size smaller than that of the contact seat 112, so that the contact seat 112 cannot fall out of the opening, thereby preventing the contact 110 from being pulled out of the base 120.

[0076] The contact rod 111 can move radially back and forth along the direction from the inside of the opening to the outside of the opening under the limitation of the opening 121. Since the base also has a spring 130, the contact can also move radially within a certain range, so that the opening 121 cooperates with the spring 130 to enable the contact 110 to move radially within a certain range.

[0077] Preferably, the radial movement range can be 0 to 4 mm, 0 to 5 mm, 0 to 6 mm, or 0 to 7 mm. It can also be a radial movement range of 0 to any integer or real value.

[0078] In one embodiment, the size of the opening 121 is slightly larger than the size of the contact rod 111, so that the contact rod 111 can move laterally in the plane of the opening 121. That is, the contact 110 can move laterally within a certain range. Since the base also has a contact guide positioning structure 140, the contact seat 112 can also move laterally within a certain range, so that the opening 121 cooperates with the contact guide positioning structure 140 to enable the contact 110 to move laterally within a certain range.

[0079] ​Preferably, the range of lateral movement can be 0 to 0.5mm, 0 to 1mm, 0 to 1.5mm, 0 to 2mm, 0 to 2.5mm, 0 to 3mm, 0 to 3.5mm, or 0 to 4mm. It can also be a range of lateral movement of 0 to any integer or real value.

[0080] In one embodiment, the base 120 forms a receiving space, and the receiving space further comprises at least the spring 130.

[0081] The spring 130 is fixed to the base 120 at one end of the receiving space formed by the base 120, and the spring mounting seat 122 is provided at the end of the receiving space formed by the base 120, and the opening 121 is provided at the other end of the receiving space formed by the base 120. This fixing method allows the spring 130 to provide a spring force to the contact 110, so that the contact 110 can move radially in the opening.

[0082] The spring mounting seat 122 can be any one of the following: a clamping groove, a mounting seat, and a mounting hole.

[0083] In one embodiment, the spring mounting seat 122 can be integrated with the base 120 (not shown). The advantage of being integrally formed is that the spring mounting seat 122 is more secure and less likely to fall off. Figure 3

[0084] The spring mounting seat 122 can also be a separate component mounted on the base 120 (as shown). The advantage of being a separate component is that the spring mounting seat 122 can be assembled with the spring 130 independently, and then the assembled spring mounting seat 122 with the spring 130 can be assembled on the base 120. This makes installation more convenient and maintenance and replacement more convenient. Figure 3

[0085] The spring 130 is arranged on the base 120 in any one of the following ways, i.e., the spring 130 is connected to the spring mounting seat 122 in any one of the following ways: plug-in connection, clamping connection, screw connection, riveting, gluing, and welding.

[0086] In one embodiment, the spring 130 is made of metal, and the spring mounting seat 122 is made of non-metal. After heating, the spring 130 can be inserted into the spring mounting seat 122, and after cooling, a stable connection is formed.

[0087] In one embodiment, the spring mounting seat 122 has a clamping groove that can accommodate one end or both ends of the spring 130, and one end or both ends of the spring 130 are clamped in the clamping groove to form a stable connection.

[0088] ​​In other embodiments, the elastic sheet 130 is fixed on the elastic sheet mounting seat 122 by screwing, riveting, gluing, welding, etc.

[0089] In one embodiment, the elastic sheet 130 is reinforced again by screwing, riveting, gluing, welding, etc. on the basis of insertion, forming a more stable connection.

[0090] In one embodiment, the elastic sheet 130 is reinforced again by screwing, riveting, gluing, welding, etc. on the basis of insertion, forming a more stable connection.

[0091] In one embodiment (as shown in Figure 3 The middle protrusion of the elastic sheet 130 is in the air, close to the contact seat 112. At this time, the two ends of the elastic sheet 130 can be fixed on the base 120, thereby providing elastic force for the middle part of the elastic sheet 130 to contact the contact seat 112.

[0092] In one embodiment (not shown in Figure 3 One end of the elastic sheet 130 is raised in the air, close to the contact seat 112. At this time, the other end of the elastic sheet 130 can be fixed on the base 120, thereby providing elastic force for one end of the elastic sheet 130 to contact the contact seat 112.

[0093] As shown in Figure 4 The plug 110 of the elastic operating head 1 extends from the opening 121 of the base 120. The base 120 also has a reinforcing rib 123 and the like structure.

[0094] As shown in Figure 5 The base 120 of the elastic operating head 1 has an elastic sheet mounting seat 122 for mounting the elastic sheet 130. The base 120 also has a reinforcing rib 123 and the like structure.

[0095] The disclosure embodiments also provide a gate control device, which includes the elastic operating head 1 in any of the above embodiments.

[0096] The elastic operating head 1 in any of the above embodiments can be connected to the gate control device to control the connection and disconnection of the gate control circuit.

[0097] The gate control device provided by the disclosure embodiments contains the elastic operating head 1 in any of the above embodiments. The design of the elastic operating head 1 can effectively avoid poor contact, ensure good contact between the elastic operating head 1 and the door contact switch 2, and ensure normal use of the gate control device.

[0098] The disclosure embodiments also provide a safety door, which includes the gate control device in the above embodiments.

[0099] The security door provided by the embodiments of the present disclosure comprises the elastic operating head 1 in any of the above embodiments, and the design of the elastic operating head 1 can effectively avoid poor contact, ensure good contact between the elastic operating head 1 and the door contact switch 2, and ensure normal use of the door control equipment.

[0100] The specific embodiments described above do not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An elastomeric actuator head (1) comprising a contact head (110) and a base (120), characterized in that, Further comprising: a spring sheet (130); the spring sheet (130) is arranged on the base (120); the spring sheet (130) supports the contact (110).

2. The elastic operating head (1) according to claim 1, wherein, arranging the spring sheet (130) on the base (120) comprises any one of the following: inserting, clamping, screwing, riveting, gluing, welding.

3. The elastic operating head (1) according to claim 1, wherein, the contact (110) comprises a contact rod (111) and a contact base (112); the spring sheet (130) has a contact surface that is shaped to fit the contact base (112).

4. The elastic operating head (1) according to claim 1, wherein, the spring sheet (130) supports the contact (110) to move in a radial direction with a minimum distance of 0-4mm and a maximum distance of 0-7mm.

5. Elastomeric operating head (1) according to claim 1, characterized in that Further comprising: a contact guide positioning structure (140); the contact guide positioning structure (140) is arranged on the base (120).

6. Elastomeric operating head (1) according to claim 5, characterized in that the contact guide positioning structure (140) comprises: a guide surface; the guide surface is used to accommodate the movement of the contact (110).

7. The elastic operating head (1) according to claim 6, wherein, the contact guide positioning structure (140) accommodates the contact (110) to move in a transverse direction with a minimum distance of 0-0.5mm and a maximum distance of 0-4mm.

8. The elastic operating head (1) according to claim 1, wherein, the base (120) has a spring sheet mounting base (122) for mounting the spring sheet (130); the spring sheet mounting base (122) is any one of the following: a clamping groove, a mounting base, a mounting hole.

9. The elastic operating head (1) according to claim 1, wherein, the surface of the spring sheet (130) has a coating.

10. The elastic operating head (1) according to claim 1, wherein, the number of spring sheets (130) is multiple, and the multiple spring sheets (130) are uniformly distributed on the base (120) to support the contact (110).

11. A gating device, characterized by comprising the elastic operating head according to any one of claims 1-10.

12. A security door comprising: comprising the gating device according to claim 11.

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