CN208670232U - A kind of single-point contact dual signal mode transmission worm wheel head - Google Patents
A kind of single-point contact dual signal mode transmission worm wheel head Download PDFInfo
- Publication number
- CN208670232U CN208670232U CN201821162740.5U CN201821162740U CN208670232U CN 208670232 U CN208670232 U CN 208670232U CN 201821162740 U CN201821162740 U CN 201821162740U CN 208670232 U CN208670232 U CN 208670232U
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- instruction
- contact
- support rod
- spherical cap
- shell
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Abstract
The utility model relates to a kind of single-point contact dual signal mode transmission worm wheel heads, including shell, cap, worm gear and worm screw, worm gear and worm screw engagement connection in shell, worm screw outside shell is fixedly mounted with handwheel, worm gear signal designation ball is fixedly mounted in cap top surface, the worm gear signal designation ball includes instruction spherical cap, support rod, contact-making switch, indicate ball cover shell, upper cover, support rod is fixedly mounted with by chassis and worm gear, support rod chassis is pierced by from upper cover, in the top of support rod suit instruction spherical cap, the fixing sleeve of one with support rod cooperation are formed with inside the instruction spherical cap, a convex block is formed in instruction spherical cap outer wall bottom, the corresponding convex block installs two contact-making switches, two contact-making switches respectively correspond the open position and off-position of worm wheel head, instruction ball cover shell is covered with above instruction spherical cap.This worm wheel head controls two contact-making switches compared with prior art, by a contact, can save manufacturing cost with the open position or off-position of simultaneous transmission valve.
Description
Technical field
The utility model belongs to valve field, is related to worm wheel head, especially a kind of single-point contact dual signal mode transmission worm gear
Head.
Background technique
Worm wheel head is the mechanism of control valve unlatching and rate-of flow, and traditional worm wheel head only has in-situ calibration, without remote
Function is passed, cannot understand the particular state of valve in Central Control Room, if someone malfunctions valve, operator is difficult to find, meeting
Situations such as causing device to stop.
Following patent is found by retrieval:
A kind of fire-fighting butterfly valve signal manual heads of CN203431292U, including the cover, cam, drive rod, microswitch, hatchcover
And worm wheel head, drive rod are connect with cam, cam is set in the cover, and the cover passes through in screw connection to cover board, under cover board
Worm wheel head is arranged in portion, is caught in microswitch in the fine motion cabin of the cover, and a groove is additionally provided in fine motion cabin, is inserted into cabin in groove
Lid, the line outlet position of hatchcover are provided with sealing rubber ring, and the bottom of the cover is provided with rubber mat.
Though the patent has transporting function, which can only transmit signal: ON signal or OFF signal.
Utility model content
The purpose of the utility model is to overcome in place of the deficiencies in the prior art, provide a kind of single-point contact dual signal transmission
Type worm wheel head can make operator's moment by the ON signal of the valve of worm wheel head and the teletransmission of OFF signal state to Central Control Room
The state for solving valve, avoids someone from malfunctioning.
The utility model technical scheme applied to solve the technical problem is:
A kind of single-point contact dual signal mode transmission worm wheel head, including shell, cap, worm gear and worm screw, the worm gear in shell
It engages and connects with worm screw, the worm screw outside shell is fixedly mounted with handwheel, is fixedly mounted with worm gear signal designation ball, the snail in cap top surface
Taking turns signal designation ball includes instruction spherical cap, support rod, contact-making switch, instruction ball cover shell, upper cover, and support rod passes through chassis and worm gear
It is fixedly mounted with, support rod chassis is pierced by from upper cover, and the upper cover coaxial welding is set with instruction in the top surface of cap, on the top of support rod
Spherical cap, the fixing sleeve for indicating to be formed with one with support rod cooperation inside spherical cap are formed with a convex block in instruction spherical cap outer wall bottom,
The corresponding convex block installs two contact-making switches, and two contact-making switches respectively correspond the open position and off-position of worm wheel head, on instruction spherical cap
Side is covered with instruction ball cover shell, and the bottom of the instruction ball cover shell is packed in the top surface of upper cover.
Moreover, two contact-making switch be inlaid in instruction ball cover in, each contact-making switch bottom instruction ball cover shell and
Upper cover is formed with the outlet hole of connection, and the two-way electric wire drawn from outlet hole is drawn after collecting from the side outlet hole of upper cover side wall,
It is connect with Central Control Room.
Moreover, the top surface on chassis is formed with circle protrusion around the internal ring wall bottom of instruction spherical cap.
The advantages and positive effects of the utility model are as follows:
1, this worm wheel head compared with prior art, controls two contact-making switches by a contact, can be with simultaneous transmission valve
The open position or off-position of door, have saved manufacturing cost.
2, the state of valve can be transferred to Central Control Room by this worm wheel head, can be monitored valve state constantly, be avoided someone
Malfunction.
Detailed description of the invention
Fig. 1 is the main view of this worm wheel head；
Fig. 2 is the internal structure chart (removing cap) of this worm wheel head；
Fig. 3 is the A-A of Fig. 1 to cross-sectional view.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is only retouched
The property stated, it is not restrictive, protection scope of this utility model cannot be limited by this.
A kind of single-point contact dual signal mode transmission worm wheel head, including shell 2, cap 3, worm gear 4 and worm screw 5, in shell
Worm gear and worm screw engagement connection, the worm screw outside shell are fixedly mounted with handwheel 1, are fixedly mounted with worm gear signal designation ball, institute in cap top surface
The worm gear signal designation ball stated includes instruction spherical cap 7, support rod 8, contact-making switch 11, instruction ball cover shell 6, upper cover 9, and support rod is logical
It crosses chassis 15 to be fixedly mounted with worm gear, support rod chassis is pierced by from upper cover, and the upper cover coaxial welding is in the top surface of cap, in support rod
Top suit instruction spherical cap, it is described instruction spherical cap inside be formed with one with support rod cooperation fixing sleeve 10, instruction spherical cap outside
Wall bottom is formed with a convex block, and the corresponding convex block installs two contact-making switches, two contact-making switches respectively correspond worm wheel head open position and
Off-position is covered with instruction ball cover shell above instruction spherical cap, and the bottom of the instruction ball cover shell is packed in the top surface of upper cover, described
Two contact-making switches be inlaid in instruction ball cover in, the instruction ball cover shell in each contact-making switch bottom be formed with upper cover be connected to out
String holes 12, the two-way electric wire drawn from outlet hole are drawn from the side outlet hole 13 of upper cover side wall after collecting, are connect with Central Control Room.
To further strengthen the support to instruction spherical cap, it is formed in the top surface on chassis around the internal ring wall bottom of instruction spherical cap
One circle protrusion 14.
The working principle of this turbine head are as follows:
When handwheel rotates clockwise, worm screw drives worm gear rotation, and the instruction spherical cap being fixedly mounted with worm gear rotates with, and works as instruction
Spherical cap convex block touches contact-making switch, and contact-making switch can issue OFF signal, be transferred to Central Control Room, otherwise when handwheel revolves counterclockwise
Turn, instruction ball convex block can touch another contact-making switch, and contact-making switch can issue ON signal, be transferred to Central Control Room.
Above-described is only preferred embodiments of the present invention, it is noted that for the ordinary skill of this field
For personnel, under the premise of not departing from utility model design, various modifications and improvements can be made, these belong to this reality
With novel protection scope.
Claims (3)
1. a kind of single-point contact dual signal mode transmission worm wheel head, including shell, cap, worm gear and worm screw, in shell worm gear and
Worm screw engagement connection, the worm screw outside shell are fixedly mounted with handwheel, are fixedly mounted with worm gear signal designation ball in cap top surface, feature exists
In: the worm gear signal designation ball includes instruction spherical cap, support rod, contact-making switch, instruction ball cover shell, upper cover, and support rod is logical
It crosses chassis to be fixedly mounted with worm gear, support rod chassis is pierced by from upper cover, and the upper cover coaxial welding is in the top surface of cap, in support rod
Top suit instruction spherical cap, the fixing sleeve for indicating to be formed with one with support rod cooperation inside spherical cap, at instruction spherical cap outer wall bottom
Portion is formed with a convex block, and the corresponding convex block installs two contact-making switches, and two contact-making switches respectively correspond the open position and off-position of worm wheel head,
Instruction ball cover shell is covered with above instruction spherical cap, the bottom of the instruction ball cover shell is packed in the top surface of upper cover.
2. single-point contact dual signal mode transmission worm wheel head according to claim 1, it is characterised in that: two contact-making switch
It is inlaid in instruction ball cover, the instruction ball cover shell in each contact-making switch bottom is formed with the outlet hole being connected to upper cover, from out
The two-way electric wire that string holes is drawn is drawn after collecting from the side outlet hole of upper cover side wall, is connect with Central Control Room.
3. single-point contact dual signal mode transmission worm wheel head according to claim 1, it is characterised in that: enclosed in the top surface on chassis
Circle protrusion is formed with around the internal ring wall bottom of instruction spherical cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821162740.5U CN208670232U (en) | 2018-07-23 | 2018-07-23 | A kind of single-point contact dual signal mode transmission worm wheel head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821162740.5U CN208670232U (en) | 2018-07-23 | 2018-07-23 | A kind of single-point contact dual signal mode transmission worm wheel head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670232U true CN208670232U (en) | 2019-03-29 |
Family
ID=65829884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821162740.5U Active CN208670232U (en) | 2018-07-23 | 2018-07-23 | A kind of single-point contact dual signal mode transmission worm wheel head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670232U (en) |
-
2018
- 2018-07-23 CN CN201821162740.5U patent/CN208670232U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |