Concave embedded type elevator induction key

Abstract

The utility model provides a concavely-embedded elevator induction key which comprises a shell, a concavely-embedded key body and a circuit board. The front part of the shell is provided with a key cavity, and the inner periphery of the front end of the key cavity is provided with an annular boss; the concave embedded key is arranged in the key cavity, a groove part is formed in the middle of the concave embedded key, an opening of the groove part faces the front side, an annular groove part is arranged around the concave embedded key, an opening of the annular groove part faces the rear side, an outer ring of the annular groove part is arranged in the annular boss in a matched mode, and a limiting ring abutting against the rear end of the annular boss is arranged at the rear end of the outer ring of the annular groove part; the circuit board is arranged behind the concave embedded key and fixed in the key cavity, the circuit board is electrically connected with a button and an induction unit, the button abuts against the rear side of the groove part of the concave embedded key, the induction unit is embedded in the annular groove part, and the induction unit triggers a key signal when inducting that an inductor extends into the groove part. According to the utility model, two triggering modes of non-contact induction and pressing can be realized, and meanwhile, the false triggering of the key can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator buttons, and particularly relates to a recessed elevator induction button. Background Art

[0002] Elevators are public facilities. During their use, they need to be controlled by touching elevator buttons. Different people touching the elevator buttons can easily cause the spread of viruses and bacteria.

[0003] The specification of Chinese Patent CN214828124U discloses a non-contact induction and mechanical pressing dual-use elevator button structure. By setting a mechanical button and a laser ranging sensor, on the one hand, contact pressing control can be carried out through the mechanical button, and on the other hand, the distance of the induction object is measured by the sensor module (laser ranging sensor) to trigger the button signal, realizing two triggering methods of non-contact induction and pressing. However, triggering the button signal by the method of distance induction of the induction object by the laser ranging sensor is likely to cause false triggering of the button. Summary of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides a recessed elevator induction button, so that it can not only realize two triggering methods of non-contact induction and pressing, but also effectively prevent false triggering of the button.

[0005] The utility model provides a recessed elevator induction button, including:

[0006] A housing, a button cavity is provided at the front of the housing, and an annular boss is provided at the inner periphery of the front end of the button cavity;

[0007] A recessed button, the recessed button is arranged in the button cavity, a groove part is provided in the middle of the recessed button, the opening of the groove part faces forward, a ring groove part is provided around the recessed button, the opening of the ring groove part faces backward, the outer ring of the ring groove part is adapted to be within the annular boss, and a limiting ring that abuts against the rear end of the annular boss is provided at the rear end of the outer ring of the ring groove part;

[0008] A circuit board, the circuit board is arranged behind the recessed button and fixed in the button cavity, a button that abuts against the rear side of the groove part of the recessed button and an induction unit that is embedded in the ring groove part and can sense an induction object extending into the groove part are electrically connected on the circuit board, and the induction unit triggers a button signal when it senses that an induction object extends into the groove part.

[0009] Further, the induction unit includes a transmitting end and a receiving end. The transmitting end is configured to emit an optical signal into the interior of the groove portion, and the optical signal can pass through the side wall of the groove portion. The receiving end is configured to receive the optical signal emitted by the transmitting end. The transmitting end and the receiving end are disposed on two opposite sides of the annular groove portion. When the receiving end detects that an induction object extends into the groove portion and blocks the optical signal emitted by the transmitting end, a key signal is triggered.

[0010] Further, on the front side of the circuit board, two support plates that respectively extend into both sides of the annular groove portion are symmetrically arranged left and right, and the transmitting end and the receiving end are fixedly mounted on the opposite inner sides of the two support plates in a one-to-one correspondence.

[0011] Further, the induction unit includes a transmitting end and a receiving end. The transmitting end is configured to emit an optical signal into the interior of the groove portion, and the optical signal can pass through the side wall of the groove portion. The receiving end is configured to receive the optical signal emitted by the transmitting end. The transmitting end and the receiving end are disposed on the same side of the annular groove portion. When the receiving end detects that an induction object extends into the groove portion and reflects the optical signal emitted by the transmitting end, a key signal is triggered.

[0012] Further, on the front side of the circuit board, a support plate that extends into the annular groove portion is provided, and both the transmitting end and the receiving end are mounted on the side of the support plate facing the groove portion.

[0013] Further, the recessed key is made of a light-transmitting material, and a light-emitting lamp bead that operates when a key signal is triggered is provided on the circuit board.

[0014] Further, a rear cover is provided on the rear side of the housing, and a spring that surrounds the circuit board is supported between the rear cover and the limiting ring.

[0015] Further, an installation convex ring is provided on the front side of the rear cover, the circuit board is fixed within the installation convex ring, and the rear end of the spring is positioned outside the installation convex ring.

[0016] Further, a connecting ring that protrudes outward is provided at the rear end of the housing, and the rear cover is fixed to the connecting ring by bolts.

[0017] The beneficial effects of the present utility model are embodied in:

[0018] The concave - embedded elevator induction key provided by this application has two triggering methods. One method is to insert an induction object such as a finger into the groove part of the concave - embedded key. When the induction unit senses that an induction object is inserted into the groove part, the key signal is triggered. Without the finger contacting the key, the key signal can be triggered. The other method is to directly press the button through the concave - embedded key to trigger the key signal. Therefore, this application can achieve two triggering methods: non - contact induction and pressing. And it is necessary to insert an induction object such as a finger into the groove part to achieve non - contact induction triggering, which can effectively prevent accidental triggering of the key. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of another embodiment of the present utility model.

[0022] In the drawings, 100 - housing; 110 - key cavity; 120 - annular boss; 130 - rear cover; 131 - mounting boss; 140 - connecting ring; 150 - bolt; 200 - concave - embedded key; 210 - groove part; 220 - annular groove part; 230 - limiting ring; 300 - circuit board; 310 - button; 321 - transmitting end; 322 - receiving end; 323 - support plate; 330 - light - emitting lamp bead; 400 - spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will describe in detail the embodiments of the technical solutions of the present utility model in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0024] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0025] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides a concave - embedded elevator induction key, including a housing 100, a concave - embedded key 200, and a circuit board 300.

[0026] The front part of the housing 100 is provided with a key cavity 110, and an annular boss 120 is provided on the inner peripheral edge at the front end of the key cavity 110.

[0027] The recessed key 200 is arranged in the key cavity 110. The middle part of the recessed key 200 has a groove part 210, and the opening of the groove part 210 faces the front side. An annular groove part 220 is arranged around the recessed key 200, and the opening of the annular groove part 220 faces the rear side. The outer ring of the annular groove part 220 is adapted to be inside the annular boss 120, and a limiting ring 230 that abuts against the rear end of the annular boss 120 is arranged at the rear end of the outer ring of the annular groove part 220.

[0028] The circuit board 300 is arranged behind the recessed key 200 and fixed in the key cavity 110. A button 310 that abuts against the rear side of the groove part 210 of the recessed key 200 and a sensing unit that is embedded in the annular groove part 220 and can sense the sensing object extending into the groove part 210 are electrically connected on the circuit board 300. When the sensing unit senses that a sensing object extends into the groove part 210, a key signal is triggered.

[0029] In one embodiment, referring to Figure 1 , the sensing unit includes a transmitting end 321 and a receiving end 322. The transmitting end 321 is used to emit an optical signal into the interior of the groove part 210, and the optical signal can pass through the side wall of the groove part 210. The receiving end 322 is used to receive the optical signal emitted by the transmitting end 321. The transmitting end 321 and the receiving end 322 are arranged on two opposite sides of the annular groove part 220. When the receiving end 322 detects that a sensing object extends into the groove part 210 and blocks the optical signal emitted by the transmitting end 321, a key signal is triggered. That is, when a finger extends into the groove part 210, the finger will block the optical signal, and the optical signal received by the receiving end 322 immediately decreases, so as to achieve high-sensitivity feedback and enable the subsequent control process to proceed smoothly.

[0030] In order to fixedly install the transmitting end 321 and the receiving end 322, two support plates 323 that respectively extend into both sides of the annular groove part 220 are symmetrically arranged on the front side of the circuit board 300, and the transmitting end 321 and the receiving end 322 are fixedly arranged on the opposite inner sides of the two support plates 323 in one-to-one correspondence.

[0031] In another embodiment, referring to Figure 2, the sensing unit includes a transmitting end 321 and a receiving end 322. The transmitting end 321 is used to emit an optical signal into the interior of the groove portion 210. The optical signal can pass through the side wall of the groove portion 210. The receiving end 322 is used to receive the optical signal emitted by the transmitting end 321. The transmitting end 321 and the receiving end 322 are arranged on the same side of the annular groove portion 220. When the receiving end 322 detects that an inducer extends into the groove portion 210 and reflects the optical signal emitted by the transmitting end 321, a key signal is triggered. That is, when a finger extends into the groove portion 210, the finger will reflect the optical signal emitted by the transmitting end 321, so that the receiving end 322 receives the reflected optical signal, thereby achieving high-sensitivity feedback and enabling the subsequent control process to proceed smoothly.

[0032] Similarly, in order to fixedly install the transmitting end 321 and the receiving end 322, a support plate 323 extending into the annular groove portion 220 is provided on the front side of the circuit board 300. Both the transmitting end 321 and the receiving end 322 are installed on the side of the support plate 323 facing the groove portion 210.

[0033] In a preferred embodiment, the recessed key 200 is made of a light-transmitting material. A light-emitting lamp bead 330 that works when the key signal is triggered is provided on the circuit board 300. When the key signal is triggered, the light-emitting lamp bead 330 emits light to illuminate the recessed key 200, which is beneficial for judging whether the key signal is triggered.

[0034] In a preferred embodiment, a rear cover 130 is provided on the rear side of the housing 100. A spring 400 surrounding the circuit board 300 is supported between the rear cover 130 and the limiting ring 230, which can ensure that the recessed key 200 can bounce back smoothly after being pressed.

[0035] In order to facilitate the positioning and installation of the circuit board 300 and the spring 400, an installation convex ring 131 is provided on the front side of the rear cover 130. The circuit board 300 is fixed within the installation convex ring 131, and the rear end of the spring 400 is positioned outside the installation convex ring 131.

[0036] In order to facilitate fixing the rear cover 130 on the rear side of the housing, a connecting ring 140 protruding outward is provided at the rear end of the housing 100. The rear cover 130 and the connecting ring 140 are fixed by bolts 150.

[0037] When assembling the above-mentioned recessed elevator induction key, first install the recessed key 200 into the key cavity 110 from the rear side of the housing 100, then fixedly install the circuit board 300 and the spring 400 on the installation convex ring 131 of the rear cover 130 respectively, then align and insert the circuit board 300 and the spring 400 on the rear cover 130 into the key cavity 110, and finally fix the rear cover 130 at the rear end of the housing 100.

[0038] The concave-embedded elevator induction button provided by the present application has two triggering methods. One method is to insert an induction object such as a finger into the groove portion 210 of the concave-embedded button 200. When the induction unit senses that an induction object has been inserted into the groove portion 210, a button signal is triggered. The finger does not need to contact the button to trigger the button signal. The other method is to directly press the button 310 through the concave-embedded button 200 to trigger the button signal. Therefore, the present application can implement two triggering methods: non-contact induction and pressing. Moreover, an induction object such as a finger needs to be inserted into the groove portion 210 to achieve non-contact induction triggering, which can effectively prevent accidental triggering of the button.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. An embedded elevator induction button, characterized in that, Comprising: A housing, a key chamber is provided at the front of the housing, and an annular boss is provided on the inner peripheral edge at the front end of the key chamber; A recessed key, which is arranged in the key chamber. The middle part of the recessed key has a groove part, the opening of the groove part faces forward, a ring groove part is arranged around the recessed key, the opening of the ring groove part faces backward, the outer ring of the ring groove part is adapted to be within the annular boss, and a limiting ring that abuts against the rear end of the annular boss is provided at the rear end of the outer ring of the ring groove part; A circuit board, which is arranged behind the recessed key and fixed in the key chamber. Electrically connected to the circuit board are a button that abuts against the rear side of the groove part of the recessed key, and an induction unit that is embedded in the ring groove part and can sense an induction object extending into the groove part. When the induction unit senses that an induction object extends into the groove part, a key signal is triggered.

2. The recessed elevator induction key according to claim 1, characterized in that The induction unit includes a transmitting end and a receiving end. The transmitting end is used to transmit an optical signal into the inside of the groove part, and the optical signal can pass through the side wall of the groove part. The receiving end is used to receive the optical signal transmitted by the transmitting end. The transmitting end and the receiving end are arranged on two opposite sides of the ring groove part. When the receiving end detects that an induction object extends into the groove part and blocks the optical signal transmitted by the transmitting end, a key signal is triggered.

3. The recessed elevator induction key according to claim 2, characterized in that On the front side of the circuit board, two support plates that respectively extend into both sides of the ring groove part are symmetrically arranged left and right. The transmitting end and the receiving end are fixedly arranged on the opposite inner sides of the two support plates respectively.

4. The recessed elevator induction key according to claim 1, characterized in that The induction unit includes a transmitting end and a receiving end. The transmitting end is used to transmit an optical signal into the inside of the groove part, and the optical signal can pass through the side wall of the groove part. The receiving end is used to receive the optical signal transmitted by the transmitting end. The transmitting end and the receiving end are arranged on the same side of the ring groove part. When the receiving end detects that an induction object extends into the groove part and reflects the optical signal transmitted by the transmitting end, a key signal is triggered.

5. The recessed elevator induction key according to claim 4, characterized in that On the front side of the circuit board, a support plate that extends into the ring groove part is provided. The transmitting end and the receiving end are both installed on the side of the support plate facing the groove part.

6. The recessed elevator induction key according to claim 1, characterized in that The recessed key is made of a light-transmitting material, and a light-emitting lamp bead that works when a key signal is triggered is provided on the circuit board.

7. The recessed elevator induction key according to claim 1, characterized in that A rear cover is provided at the rear side of the housing, and a spring that surrounds the circuit board is supported between the rear cover and the limiting ring.

8. The recessed elevator induction key according to claim 7, characterized in that An installation convex ring is provided on the front side of the rear cover. The circuit board is fixed within the installation convex ring, and the rear end of the spring is positioned outside the installation convex ring.

9. The recessed elevator induction button according to claim 7, wherein a connecting ring protruding outward is provided at the rear end of the housing, and the rear cover is fixed to the connecting ring by bolts.

Images