CN220526793U - Travel switch with normally open and normally closed contacts moving asynchronously - Google Patents
Travel switch with normally open and normally closed contacts moving asynchronously Download PDFInfo
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- CN220526793U CN220526793U CN202322230641.3U CN202322230641U CN220526793U CN 220526793 U CN220526793 U CN 220526793U CN 202322230641 U CN202322230641 U CN 202322230641U CN 220526793 U CN220526793 U CN 220526793U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of electric automation, and aims to provide a travel switch with a normally open contact and a normally closed contact which act asynchronously, which comprises a shell, wherein a rotating shaft is arranged in the middle of the inside of the shell, one end of the rotating shaft extends out of the shell, and a transmission rod is hinged with the part of the rotating shaft extending out of the shell and is perpendicular to the rotating shaft; a normally open contact trigger rod and a normally closed contact trigger rod are fixedly arranged on a rotating shaft in the shell, and correspond to a normally open contact and a normally closed contact which are arranged in the shell respectively. The utility model utilizes the travel switch transmission rod to drive the rotating shaft to rotate, the rotating shaft drives the trigger rod to rotate, and the trigger rod pushes the normally-open contact and the normally-closed contact to act, so that the on-off control of a circuit is realized, the application requirements of situations that some special production scene equipment moves to different positions to respectively turn on and off can be met, the structure is simple, the installation is convenient, the cost is low, and the gap of the travel switch with the normally-open normally-closed contact in asynchronous action in the market is made up.
Description
Technical Field
The utility model relates to the technical field of electric automation, in particular to a travel switch with normally-open and normally-closed contacts which act asynchronously.
Background
One kind of travel switch (also called limit switch) is a common small current master control electric appliance. The contact of the production mechanical moving part is enabled to act by utilizing the collision of the production mechanical moving part to realize the connection or disconnection of the control circuit, so that a certain control purpose is achieved. Typically, such switches are used to limit the position or travel of the machine's movement, automatically stopping, reversing, shifting, or automatically reciprocating the machine at a certain position or travel. In an electrical control system, the function of the position switch is to realize sequential control, positioning control and detection of position state. The device is used for controlling the stroke and limiting protection of mechanical equipment. The structure is as follows: consists of an operating head, a contact system and a shell.
In actual production, the travel switch is arranged at a prearranged position, and when a module arranged on a production mechanical moving part impacts the travel switch, the contact of the travel switch acts to realize the switching of a circuit. Therefore, the travel switch is a state in which the circuit is switched according to the travel position of the moving member, and its principle of operation is similar to that of a push button. At present, travel switches with normally-open and normally-closed contacts in the market are all normally-open and normally-closed contacts which act simultaneously, and travel switches with the normally-open and normally-closed contacts which act at two limit positions respectively cannot meet the application requirements of travel switches in special scenes.
Disclosure of Invention
The utility model aims to provide a travel switch with normally open and normally closed contacts which act asynchronously, so as to solve the problems in the background technology.
The technical scheme adopted by the utility model is as follows:
the travel switch comprises a shell, wherein a rotating shaft is arranged in the middle of the inside of the shell, one end of the rotating shaft extends out of the shell, and a transmission rod is hinged with the part of the rotating shaft extending out of the shell and is perpendicular to the rotating shaft;
the rotary shaft inside the shell is fixedly provided with a normally open contact trigger rod and a normally closed contact trigger rod, the normally open contact trigger rod and the normally closed contact trigger rod respectively correspond to the normally open contact and the normally closed contact, and the normally open contact and the normally closed contact are both arranged inside the shell.
And a normally open contact protection limit rod and a normally closed contact protection limit rod are vertically arranged on the outer side wall of the shell.
The normally closed contact comprises a force bearing rod I, a spring I, a fixed rod I, an installation fixing frame I, a fixed contact II and a movable contact I, wherein the two ends of the fixed rod I are respectively connected with the force bearing rod I and the movable contact I, the fixed rod I is sleeved with the installation fixing frame I, the spring I is arranged between the installation fixing frame I and the force bearing rod I, the spring I is sleeved on the fixed rod I, the two ends of one side, close to the force bearing rod I, of the movable contact I are respectively provided with the fixed contact I and the fixed contact II, and the fixed contact I and the fixed contact II are fixedly arranged on a shell.
And the fixed contact I and the fixed contact II are connected with wires.
The normally open contact comprises a stress rod II, a spring II, a fixed rod II, an installation fixing frame II, a movable contact II, a fixed contact III, a fixed contact IV, a fixed contact spring I and a fixed contact spring II, wherein the two ends of the fixed rod II are respectively connected with the stress rod II and the movable contact II, the fixed rod II is sleeved with the installation fixing frame II, a spring II is arranged between the installation fixing frame II and the stress rod II, the spring II is sleeved on the fixed rod II, and the two ends of one side, far away from the stress rod II, of the movable contact II are respectively provided with the fixed contact III and the fixed contact IV.
The fixed contact III and the fixed contact IV are respectively arranged on the shell through a fixed contact spring I and a fixed contact spring II.
And the fixed contact III and the fixed contact IV are connected with wires.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
according to the utility model, the rotating shaft is driven by the travel switch transmission rod to rotate, the contact trigger rod is driven by the rotating shaft to rotate, and the normally open contact and the normally closed contact are pushed by the trigger rod to act, so that the on-off control of a circuit is realized, the application requirements of situations that some special production scene equipment moves to different positions to be respectively powered on and off can be met, the travel switch is simple in structure, convenient to install and low in cost, the gap of a travel switch which is not normally opened and normally closed in the market and is not synchronously acted is made up, meanwhile, the rotation angle of the transmission rod is limited by the limit rod and the fixed contact spring, the normally open contact, the normally closed contact and the fixed contact are effectively protected, the damage of the normally open contact, the normally closed contact and the fixed contact is prevented, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a normally closed contact in an embodiment of the utility model.
Fig. 3 is a schematic diagram of a normally open contact in an embodiment of the utility model.
Figure number and name: the device comprises a shell 1, a transmission rod 2, a rotating shaft 3, a normally closed contact trigger rod 4, a normally open contact trigger rod 5, a normally open contact protection limit rod 6, a normally closed contact protection limit rod 7, a normally closed contact 8, a normally open contact 9, a stress rod I10, a spring I11, a fixed rod I12, a mounting fixing frame I13, a fixed contact I14, a fixed contact II 15, a movable contact I16, a stress rod II 17, a spring II 18, a fixed rod II 19, a mounting fixing frame II 20, a movable contact II 21, a fixed contact III 22, a fixed contact IV 23, a fixed contact spring I24 and a fixed contact spring II 25.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the travel switch with the normally open and normally closed contacts in asynchronous action comprises a shell 1, wherein the shell 1 is made of metal (iron, aluminum and the like), a rotating shaft 3 is arranged in the middle of the interior of the shell 1, a through hole corresponding to the rotating shaft 3 is formed in one side wall of the shell 1, one end of the rotating shaft 3 is rotatably arranged in the shell 1, and the other end of the rotating shaft 3 penetrates through the through hole and extends out of the shell 1; the transmission rod 2 is hinged with the part of the rotating shaft 3 extending out of the shell 1 and is perpendicular to the rotating shaft 3.
The outer side wall of the shell 1 is provided with a normally open contact protection limit rod 6 and a normally closed contact protection limit rod 7, and the normally open contact protection limit rod 6 and the normally closed contact protection limit rod 7 are perpendicular to the shell 1.
A normally open contact trigger rod 5 and a normally closed contact trigger rod 4 are fixedly arranged on a rotating shaft 3 in the shell 1, and the welding angle of the normally open contact trigger rod 5 and the normally closed contact trigger rod 4 can be welded according to the movable angle of the transmission rod 2; the normally open contact trigger lever 5 and the normally closed contact trigger lever 4 correspond to the normally open contact 9 and the normally closed contact 8 respectively, and the normally open contact 9 and the normally closed contact 8 are both installed inside the casing 1.
The working principle of the utility model is as follows: when the transmission rod 2 rotates anticlockwise, the rotating shaft 3 rotates along with the transmission rod 2, the contact trigger rod rotates along with the rotating shaft 3, and when the normally open contact trigger rod 5 rotates to the position of the normally open contact 9, the normally open contact 9 acts, the contact is closed, and the circuit is connected. When the transmission rod 2 rotates clockwise, the rotating shaft 3 rotates along with the transmission rod 2, the contact trigger rod rotates along with the rotating shaft 3, and when the normally closed contact trigger rod 4 rotates to the normally closed contact 8, the normally closed contact 8 acts, the contact is disconnected, and the circuit is disconnected. In order to protect the contacts from being damaged, a contact protection limiting rod is arranged outside the travel switch shell 1, when the normally open contact triggering rod 5 enables the normally open contact 9 to act, the transmission rod 2 cannot continue to rotate to the position of the normally open contact protection limiting rod 6, so that the normally open contact 9 is protected, and similarly, when the normally closed contact triggering rod 4 enables the normally closed contact 8 to act, the transmission rod 2 cannot continue to rotate to the position of the normally closed contact protection limiting rod 7, so that the normally closed contact 8 is protected.
The utility model can be used vertically (i.e. the transmission rod 2 rotates in a vertical plane) or horizontally (i.e. the transmission rod 2 rotates in a horizontal plane), and the shell 1 is fixedly arranged in a production scene through bolts.
As shown in FIG. 2, the normally closed contact 8 comprises a force-bearing rod I10, a spring I11, a fixed rod I12, a mounting fixing frame I13, a fixed contact I14, a fixed contact II 15 and a movable contact I16, wherein the two ends of the fixed rod I12 are respectively connected with the force-bearing rod I10 and the movable contact I16, the fixed rod I12 is sleeved with the mounting fixing frame I13, the mounting fixing frame I13 is fixedly arranged on the shell 1, a spring I11 is arranged between the mounting fixing frame I13 and the force-bearing rod I10, the spring I11 is sleeved on the fixed rod I12, the two ends of one side, close to the force-bearing rod I10, of the movable contact I16 are respectively provided with the fixed contact I14 and the fixed contact II 15, and the fixed contact I14 and the fixed contact II 15 are fixedly arranged on the shell 1; the fixed contact 14 and the fixed contact 15 are respectively connected with an electric wire, when the trigger rod rotates to the position of the stress rod I10, the movable contact I16 moves along with the stress rod I10 to be disconnected with the fixed contact I14 and the fixed contact II 15, and the fixed contact I14 and the fixed contact II 15 are disconnected, so that a circuit is disconnected. When the trigger lever rotates to leave the stressed rod I10, the stressed rod I10 is reset by the action of the spring I11, and the movable contact I16 is contacted with the fixed contact I14 and the fixed contact II 15.
As shown in fig. 3, the normally open contact 9 includes a force-bearing rod ii 17, a spring ii 18, a fixed rod ii 19, a mounting fixing frame ii 20, a movable contact ii 21, a stationary contact iii 22, a stationary contact iv 23, a stationary contact spring i 24 and a stationary contact spring ii 25, wherein the two ends of the fixed rod ii 19 are respectively connected with the force-bearing rod ii 17 and the movable contact ii 21, the mounting fixing frame ii 20 is sleeved on the fixed rod ii 19, the mounting fixing frame ii 20 is fixedly mounted on the housing 1, a spring ii 18 is arranged between the mounting fixing frame ii 20 and the force-bearing rod ii 17, the spring ii 18 is sleeved on the fixed rod ii 19, and the two ends of one side of the movable contact ii 21 away from the force-bearing rod ii 17 are respectively provided with a stationary contact iii 22 and a stationary contact iv 23; and the fixed contact III 22 and the fixed contact IV 23 are respectively connected with an electric wire, and when the trigger rod rotates to the position of the stress rod II 17, the movable contact II 21 moves along with the stress rod II 17 to be contacted with the fixed contact III 22 and the fixed contact IV 23, and the fixed contact III 22 and the fixed contact IV 23 are communicated through the movable contact II 21, so that a circuit is communicated. When the trigger lever rotates to leave the stress lever II 17, the spring II 18 acts to reset the stress lever II 17, and the movable contact II 21 is disconnected from the fixed contact III 22 and the fixed contact IV 23. In order to prevent the contacts from being damaged due to overlarge stress, the fixed contact III 22 and the fixed contact IV 23 are respectively arranged on the shell 1 through the fixed contact spring I24 and the fixed contact spring II 25, and then after the movable contact II 21 is contacted with the fixed contact III 22 and the fixed contact IV 23, the fixed contact III 22 and the fixed contact IV 23 can still move to prevent the contacts from being damaged.
Claims (7)
1. The utility model provides a travel switch of normal open normally closed contact asynchronous motion, includes casing (1), its characterized in that: a rotating shaft (3) is arranged in the middle position inside the shell (1), one end of the rotating shaft (3) extends out of the shell (1), and the transmission rod (2) is hinged with the part, extending out of the shell (1), of the rotating shaft (3) and is perpendicular to the rotating shaft (3);
the device is characterized in that a normally open contact trigger rod (5) and a normally closed contact trigger rod (4) are fixedly arranged on a rotating shaft (3) inside the shell (1), the normally open contact trigger rod (5) and the normally closed contact trigger rod (4) respectively correspond to a normally open contact (9) and a normally closed contact (8), and the normally open contact (9) and the normally closed contact (8) are arranged inside the shell (1).
2. The normally open normally closed contact asynchronous motion travel switch of claim 1, wherein: a normally open contact protection limit rod (6) and a normally closed contact protection limit rod (7) are vertically arranged on the outer side wall of the shell (1).
3. The normally open normally closed contact asynchronous motion travel switch of claim 1, wherein: the normally closed contact (8) comprises a stress rod I (10), a spring I (11), a fixed rod I (12), a mounting fixing frame I (13), a fixed contact I (14), a fixed contact II (15) and a movable contact I (16), wherein the two ends of the fixed rod I (12) are respectively connected with the stress rod I (10) and the movable contact I (16), the mounting fixing frame I (13) is sleeved on the fixed rod I (12), the spring I (11) is arranged between the mounting fixing frame I (13) and the stress rod I (10), the spring I (11) is sleeved on the fixed rod I (12), the fixed contact I (14) and the fixed contact II (15) are respectively arranged at two ends of one side, close to the stress rod I (10), of the movable contact I (16), and the fixed contact I (14) and the fixed contact II (15) are fixedly arranged on the shell (1).
4. A normally open normally closed contact asynchronous motion travel switch as claimed in claim 3 wherein: and the fixed contact I (14) and the fixed contact II (15) are connected with wires.
5. The normally open normally closed contact asynchronous motion travel switch of claim 1, wherein: the normally open contact (9) comprises a stress rod II (17), a spring II (18), a fixed rod II (19), an installation fixing frame II (20), a movable contact II (21), a fixed contact III (22), a fixed contact IV (23), a fixed contact spring I (24) and a fixed contact spring II (25), wherein the two ends of the fixed rod II (19) are respectively connected with the stress rod II (17) and the movable contact II (21), the installation fixing frame II (20) is sleeved on the fixed rod II (19), the spring II (18) is arranged between the installation fixing frame II (20) and the stress rod II (17), the spring II (18) is sleeved on the fixed rod II (19), and the fixed contact III (22) and the fixed contact IV (23) are respectively arranged at two ends of one side, far away from the stress rod II (17), of the movable contact II (21).
6. The normally open normally closed contact asynchronous motion travel switch of claim 5, wherein: the stationary contact III (22) and the stationary contact IV (23) are respectively arranged on the shell (1) through a stationary contact spring I (24) and a stationary contact spring II (25).
7. The normally open normally closed contact asynchronous motion travel switch of claim 6, wherein: and the fixed contact III (22) and the fixed contact IV (23) are connected with wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230641.3U CN220526793U (en) | 2023-08-18 | 2023-08-18 | Travel switch with normally open and normally closed contacts moving asynchronously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230641.3U CN220526793U (en) | 2023-08-18 | 2023-08-18 | Travel switch with normally open and normally closed contacts moving asynchronously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526793U true CN220526793U (en) | 2024-02-23 |
Family
ID=89926689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322230641.3U Active CN220526793U (en) | 2023-08-18 | 2023-08-18 | Travel switch with normally open and normally closed contacts moving asynchronously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220526793U (en) |
-
2023
- 2023-08-18 CN CN202322230641.3U patent/CN220526793U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |