A self-locking signal light with a push button switch

Abstract

The utility model provides a self-locking signal lamp with a button switch, characterized in that it comprises: a base, a switch is arranged inside the base, and a moving contact bracket is arranged on the switch; a lampshade, the lower end of which is connected to the base, and the upper end of which is sleeved with a barrel; a movable rod, which is located inside the lampshade and can move up and down; an execution head, which is sleeved on the upper end of the lampshade; a trigger pressure ring is buckled on the barrel, a clamping cover is arranged outside the trigger pressure ring, and an upper cover is ultrasonically welded on the trigger pressure ring. The trigger pressure ring is driven by pressing the upper cover, and the execution head is driven to shrink inward, so that the lower end of the movable rod contacts the moving contact bracket and touches the switch. After locking, the signal and the like are kept in an energized state or an off-power state, and the state of the signal lamp remains unchanged regardless of changes in the external circuit.

Description

Technical Field

[0001] The utility model relates to a self-locking signal lamp with a button switch. Background Art

[0002] Explosion-proof lamp refers to a special type of lighting equipment used in places with flammable and explosive gases, steam, liquids, etc. Its design adopts measures to prevent the internal explosion and combustion flames of the product from spreading outside the flameproof enclosure, avoiding accidents caused by the use of electrical equipment.

[0003] This product is used as indication signal, warning signal, accident signal, etc. in mechanical equipment and electrical appliances with flammable and explosive dangerous gases or dust in the fields of electricity, electromechanics, shipbuilding, textiles, printing, chemicals, and pharmaceuticals.

[0004] In the prior art, ordinary explosion-proof signal lights have only two states: power-on and power-off. They do not have a switch contact state retention function, and the power-on state is directly changed when a line fault occurs. Utility Model Content

[0005] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose a self-locking signal light with a button switch, which drives the trigger pressure ring by pressing the upper cover, and then drives the actuator head to retract inward, so that the lower end of the movable rod contacts the moving contact bracket and touches the switch. After locking, the signal and the like remain in the power-on state or the power-off state, and the state of the signal light remains unchanged regardless of changes in the external circuit.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a self-locking signal light with a push button switch, characterized in that it includes:

[0007] A base, in which a switch is arranged, and a moving contact bracket is arranged on the switch;

[0008] The lampshade has a lower end connected to the base and an upper end sleeved with a barrel;

[0009] A movable rod, which is located in the lampshade and can move up and down;

[0010] An execution head, which is sleeved on the upper end of the lampshade;

[0011] A trigger pressure ring is buckled on the barrel, a pressing cover is arranged outside the trigger pressure ring, and an upper cover is ultrasonically welded on the trigger pressure ring.

[0012] Furthermore, a sealing elastic cap is provided on the contact surface between the trigger pressure ring, the compression cover and the upper cover, and a compression ring is provided between the sealing elastic cap and the compression cover.

[0013] Furthermore, the inner side surface of the trigger pressing ring has a circle of first oblique teeth;

[0014] Furthermore, the upper side of the execution head has a second bevel tooth meshing with the first bevel tooth, and the length of the first bevel tooth is greater than that of the second bevel tooth, and the lower side of the execution head has a third bevel tooth.

[0015] Furthermore, the inner wall of the barrel has a fourth stepped bevel tooth, the fourth bevel tooth can be meshed and connected with the third bevel tooth, and the third bevel tooth can move and be fixed along the fourth stepped bevel tooth.

[0016] Furthermore, the barrel has an inner recess in the middle, and a locking nut is threadedly connected to the inner recess, and a sealing ring with an L-shaped cross-section is installed in the inner recess.

[0017] Furthermore, a locking groove is provided inside the trigger pressure ring and the first bevel tooth is located outside the locking groove.

[0018] Furthermore, a spring is provided in the embedding groove and the lower end of the spring abuts against the upper end plane of the fourth bevel tooth.

[0019] Compared with the prior art, the advantages of the present application are as follows: it drives the trigger pressure ring by pressing the upper cover, which drives the actuator head to retract inward, so that the lower end of the movable rod contacts the moving contact bracket and touches the switch. After locking, the signal remains in the power-on state or the power-off state, and the state of the signal light remains unchanged regardless of changes in the external circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a signal light;

[0021] Figure 2 It is a schematic diagram of the position of each tooth surface;

[0022] In the figure, 1, base; 11, moving contact bracket; 12, switch; 2, lampshade; 3, movable rod; 31, actuator head; 311, second bevel gear; 312, third bevel gear; 4, mounting plate; 5, locking nut; 6, barrel; 61, sealing ring; 62, fourth bevel gear; 7, clamping cover; 71, sealing elastic cap; 72, clamping ring; 8, upper cover; 9, trigger pressure ring; 91, spring; 92, card slot; 93, first bevel gear. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0024] like Figure 1-2 As shown, a self-locking signal light with a push button switch is characterized in that it includes:

[0025] A base 1, in which a switch 12 is arranged, and a moving contact bracket 11 is arranged on the switch;

[0026] The lampshade 2 has a lower end connected to the base 1 and an upper end sleeved with a barrel 6;

[0027] A movable rod 3, which is located in the lampshade 2 and can move up and down;

[0028] An execution head 31, which is sleeved on the upper end of the lampshade 2;

[0029] A trigger pressing ring 9 is buckled on the barrel 6 , a pressing cover 7 is arranged outside the trigger pressing ring 9 , and an upper cover 8 is ultrasonically welded on the trigger pressing ring 9 .

[0030] Furthermore, a sealing elastic cap 71 is provided on the contact surface between the trigger pressing ring 9 and the pressing cover 7 and the upper cover 8 , and a pressing ring 72 is provided between the sealing elastic cap 71 and the pressing cover 7 .

[0031] Furthermore, the inner side surface of the trigger pressing ring 9 has a circle of first oblique teeth 93;

[0032] Furthermore, the upper side of the execution head 31 has a second oblique tooth 311 meshing with the first oblique tooth 93 , and the length of the first oblique tooth 93 is greater than that of the second oblique tooth 311 . The lower side of the execution head 31 has a third oblique tooth 312 .

[0033] Furthermore, the inner wall of the barrel 6 has a stepped fourth bevel tooth 62 , and the fourth bevel tooth 62 can be meshed and connected with the third bevel tooth 312 , and the third bevel tooth 312 can move and be fixed along the stepped fourth bevel tooth 62 .

[0034] Furthermore, the barrel 6 has a concave portion in the middle, and a locking nut 5 is threadedly connected to the concave portion, and a sealing ring 61 with an L-shaped cross-section is installed in the concave portion.

[0035] Furthermore, a locking groove 92 is provided inside the trigger pressing ring 9 and the first bevel tooth 93 is located outside the locking groove 92 .

[0036] Furthermore, a spring 91 is disposed in the locking groove 92 , and the lower end of the spring 91 abuts against the upper end plane of the fourth bevel tooth 62 .

[0037] The multi-layer protection structure meets the protection requirements for electrical products in harsh environments. The upper cover 8 and the trigger pressure ring 9 are sealed by ultrasonic welding, and the sealing elastic cap 71 is clamped between them to form an integrated assembly;

[0038] This assembly is pressed against the barrel 6 through the pressing cover 7, and a pressing ring is placed between them to fill the tolerance and level off, thus ensuring the pressing capacity and performance;

[0039] The barrel 6 is designed to be divided into two parts, and a sealing ring 61 is placed between the barrel 6 and the mounting plate 4. The advantage is that when the lampshade 2 is installed on the panel, it needs to be fastened to the mounting plate 4 through the locking nut 5. During the fastening process, the sealing ring 61 between the barrel 6 and the mounting plate 4 is compressed and deformed, which does not affect the structural sealing of the upper part of the barrel 6.

[0040] The self-locking structure cooperates with the explosion-proof signal light with button module to achieve the function of maintaining the state of the 12 contacts of the internal switch of the signal light, that is, pressing the signal light in the power-on state will always keep the power-on state and cannot be changed, and vice versa.

[0041] The trigger pressing ring 9, the actuator head 31 and the barrel 6 have interacting moving surfaces (i.e., the first bevel tooth 93 of the toothing pressing ring corresponds to the second bevel tooth 311 of the actuator head 31, and the third bevel tooth 312 of the actuator head 31 corresponds to the fourth bevel tooth 62 of the barrel 6). The reverse force generated by the spring 91 and the movable rod 3 during the pressing process causes the actuator head 31 to produce a rotational displacement, and the third bevel tooth 312 compresses or releases the signal light movable rod 3 on the tooth surfaces of the stepped fourth bevel teeth 62 at different heights, thereby completing the opening and closing operation of the switch 12 contacts, so that the signal light maintains a single power-on or power-off state. The motion trajectory is that the upper cover 8 is pressed to drive the trigger pressing ring 9 to move downward, and the first bevel tooth 93 contacts the second bevel tooth 311 of the actuator head 31 to rotate, and the third bevel tooth 312 of the actuator head 31 moves on the tooth surfaces of the fourth bevel teeth 62 of the barrel 6 at different heights, driving the movable rod 3 to move downward, and the movable rod 3 is pressed against the moving contact bracket 11 and then contacts the switch 12.

[0042] The technical solution of the above utility model provides a solution that is significantly different from the prior art to address the technical problem that the prior art solution is too single. The parts not involved in the technical solution of this application are the same as the prior art or can be implemented by using the prior art and will not be described in detail.

[0043] The technical solutions in the above embodiments have clearly and completely described the contents of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A self-locking signal light with a push button switch, characterized in that it include: A base, in which a switch is arranged, and a moving contact bracket is arranged on the switch; The lampshade has a lower end connected to the base and an upper end sleeved with a barrel; A movable rod, which is located in the lampshade and can move up and down; An execution head, which is sleeved on the upper end of the lampshade; A trigger pressure ring is buckled on the barrel, a pressing cover is arranged outside the trigger pressure ring, and an upper cover is ultrasonically welded on the trigger pressure ring.

2. A self-locking signal light with a push button switch according to claim 1, characterized in that: A sealing elastic cap is arranged on the contact surface between the trigger pressing ring, the pressing cover and the upper cover, and a pressing ring is arranged between the sealing elastic cap and the pressing cover.

3. A self-locking signal light with a push button switch according to claim 1, characterized in that: The inner side surface of the trigger pressing ring is provided with a circle of first oblique teeth.

4. A self-locking signal light with a push button switch according to claim 3, characterized in that: The upper side of the execution head has a second oblique tooth meshing with the first oblique tooth, and the length of the first oblique tooth is greater than that of the second oblique tooth. The lower side of the execution head has a third oblique tooth.

5. A self-locking signal light with a push button switch according to claim 4, characterized in that: The inner wall of the barrel has a stepped fourth bevel tooth, the fourth bevel tooth can be meshed and connected with the third bevel tooth, and the third bevel tooth can move and be fixed along the stepped fourth bevel tooth.

6. A self-locking signal light with a push button switch according to claim 1, characterized in that: The middle part of the barrel is provided with an inner concave portion, and a locking nut is threadedly connected to the inner concave portion, and a sealing ring with an L-shaped cross section is installed in the inner concave portion.

7. A self-locking signal light with a push button switch according to claim 5, characterized in that: A locking groove is provided inside the trigger pressing ring and the first bevel tooth is located outside the locking groove.

8. A self-locking signal light with a push button switch according to claim 7, characterized in that: A spring is arranged in the embedding groove, and the lower end of the spring abuts against the upper end plane of the fourth bevel tooth.

Images