阅读说明：本技术 一种新型行程开关 (Novel travel switch ) 是由 李东海 于 2021-01-11 设计创作，主要内容包括：本发明公开了一种新型行程开关,涉及地暖配件技术,旨在解决行程开关与阀门进行配合时,令行程开关外置于阀门,通过阀杆与行程开关连接,由于行程开关的外置,导致阀杆在传动过程中会有滞后性,从而导致行程开关的控制会滞后的问题,其技术方案要点是：包括安装壳、可拆卸连接于安装壳内的触点开关、与安装壳可拆卸连接的安装头、滑动连接于安装头内且用于与触点开关接触的推动组件以及转动连接在安装头内且与推动组件输入端传动连接的转动组件,推动组件与触点开关之间设置有密封组件,密封组件具有弹性,密封组件形变量等于推动组件的位移量。本发明能够令行程开关具有极佳防水效果,使得其位于阀门内时能够较为敏感地进行触发。(The invention discloses a novel travel switch, relates to the floor heating accessory technology, and aims to solve the problem that when the travel switch is matched with a valve, the travel switch is externally arranged on the valve and is connected with the travel switch through a valve rod, and the control of the travel switch can be delayed due to hysteresis of the valve rod in a transmission process because of the external arrangement of the travel switch, wherein the technical scheme is as follows: including the installation shell, can dismantle the contact switch of connecting in the installation shell, can dismantle the installation head of being connected with the installation shell, sliding connection in installing the head and be used for the promotion subassembly that contacts with the contact switch and rotate the rotation subassembly of connecting in installing the head and with promoting the transmission of subassembly input and being connected, promote to be provided with seal assembly between subassembly and the contact switch, seal assembly has elasticity, seal assembly deformation volume equals the displacement volume that promotes the subassembly. The invention can lead the travel switch to have excellent waterproof effect, so that the travel switch can be triggered sensitively when being positioned in the valve.)

1. A novel travel switch is characterized in that: including installation shell (1), can dismantle connect in installation shell (1) contact switch (4), can dismantle installation head (2) of being connected with installation shell (1), sliding connection in installation head (2) and be used for with contact switch (4) contact promote the subassembly and rotate the rotation subassembly of connecting in installation head (2) and being connected with the transmission of promotion subassembly input, it is provided with seal assembly to promote between subassembly and contact switch (4), seal assembly has elasticity, seal assembly deformation volume equals the displacement volume that promotes the subassembly.

2. The novel travel switch of claim 1, wherein: the mounting structure is characterized in that a containing cavity (11) is formed in the mounting shell (1), a through groove (111) communicated with the containing cavity (11) is formed in one side, facing the mounting head (2), of the mounting shell (1), the sealing component is arranged in the through groove (111), and the pushing component penetrates through the through groove (111).

3. The novel travel switch of claim 2, wherein: install head (2) including can dismantle head (21) of being connected and post portion (22) with head (21) top surface integrated into one piece with installation shell (1), through-hole (211) with logical groove (111) intercommunication are seted up towards installation shell (1) one side in head (21), commentaries on classics hole (221) with through-hole (211) intercommunication are seted up to post portion (22) top surface, the rotating assembly rotates to be connected in commentaries on classics hole (221), promote subassembly sliding connection in through-hole (211) and logical groove (111), just the rotating assembly has the effort of circumference gyration.

4. The novel travel switch of claim 3, wherein: the rotating assembly comprises a rotating shaft (8) rotatably connected in the rotating hole (221) and a connecting block (3) fixedly connected to the upper end of the rotating shaft (8).

5. The novel travel switch of claim 4, wherein: a plurality of ring channels have been seted up along its length direction on the periphery wall of pivot (8), the ring channel is embedded to have a sealing washer, the sealing washer is contradicted with commentaries on classics hole (221) internal perisporium.

6. The novel travel switch of claim 4, wherein: offer recess (81) with through-hole (211) intercommunication on the periphery wall of pivot (8), the groove depth of recess (81) is less than the diameter of pivot (8), the groove width of recess (81) is greater than the diameter of pivot (8), the input that promotes the subassembly inlays in recess (81).

7. The novel travel switch of claim 6, wherein: the pushing assembly comprises a sliding block (5) embedded in a groove (81) and the length of the sliding block is larger than the groove depth of the groove (81), a limiting sleeve (6) fixedly connected with the sliding block (5) and slidably connected into a through hole (211) and a through groove (111), a push block (92) with one end located in the limiting sleeve (6) and an elastic piece (7) sleeved between the outer side of the push block (92) and the limiting sleeve (6), and the length of the push block (92) is equal to the distance between the limiting sleeve (6) and the sealing assembly.

8. The novel travel switch of claim 4, wherein: sealing assembly includes fixed connection and is located gasket (9) between promotion subassembly and contact switch (4) in leading to groove (111), gasket (9) are the tubbiness, just be provided with in gasket (9) and can dismantle sealing member (91) of being connected with leading to groove (111) internal perisporium, the outer lane of gasket (9) is located between sealing member (91) and leading to groove (111) internal perisporium.

9. The novel travel switch of claim 8, wherein: the sealing element (91) is an external thread nut, an internal thread is arranged on the inner peripheral wall of the through groove (111), and the sealing element (91) is detachably connected with the inner peripheral wall of the through groove (111) through the internal thread.

Technical Field

The invention relates to the technology of floor heating accessories, in particular to a novel travel switch.

Background

A travel switch and a position switch (also called a limit switch), which are commonly used small-current master control electrical appliances. The contact of the mechanical motion part is operated by the collision to realize the connection or disconnection of the control circuit, thereby achieving a certain control purpose. Generally, such switches are used to limit the position or stroke of the movement of the machine, so that the moving machine can automatically stop, move in reverse, shift or automatically move back and forth according to a certain position or stroke.

When present travel switch and valve cooperate, often make travel switch external valve, be connected with travel switch's input through the valve rod in the valve, and because travel switch's external, lead to the valve rod of valve to have certain hysteresis quality at the transmission in-process to the control that leads to travel switch can lag.

Therefore, a new solution is needed to solve this problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a novel travel switch, which has an excellent waterproof effect and can be triggered relatively sensitively when being positioned in a valve.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a novel travel switch, includes the installation shell, can dismantle the installation head of connecting in the installation shell, can dismantle the connection with the installation shell and install the head, sliding connection in installing the head and be used for the promotion subassembly and the rotation subassembly that the rotation is connected in installing the head and is connected with the transmission of promotion subassembly input with the contact switch contact, it is provided with seal assembly to promote between subassembly and the contact switch, seal assembly has elasticity, seal assembly deformation volume equals the displacement volume that promotes the subassembly.

Through adopting above-mentioned technical scheme, when this travel switch need use, can come to effectively completely cut off the inside of pushing assembly and installation shell through seal assembly, avoid the water in the valve to enter into the inside of installation shell, and when the runner assembly received triggering of valve rod, it can drive pushing assembly come point contact switch immediately and trigger, when making this travel switch be located the valve, can trigger by the drive that receives the valve rod comparatively in time and sensitively, improve its work efficiency.

The invention is further configured to: the installation shell is internally provided with a containing cavity, one side of the installation shell, facing the installation head, is provided with a through groove communicated with the containing cavity, the sealing component is arranged in the through groove, and the pushing component penetrates through the through groove.

Through adopting above-mentioned technical scheme, hold the chamber through the setting to make it can install to contact switch.

The invention is further configured to: the installation head includes can dismantle the head of being connected and the post portion with head top surface integrated into one piece with the installation shell, the head towards installation shell one side seted up with lead to the through-hole of groove intercommunication, the commentaries on classics hole with the through-hole intercommunication is seted up to the post portion top surface, the rotating assembly rotates to be connected in changeing the hole, promote subassembly sliding connection at through-hole and logical inslot, just the rotating assembly has the effort of circumference gyration.

Through adopting above-mentioned technical scheme, through setting up the installation head to make it can carry out effectual spacing to rotating assembly and promotion subassembly, make rotating assembly can only take place the rotation in changeing the downthehole circumference, and promote the subassembly and only can take place to slide at through-hole and logical inslot.

The invention is further configured to: the rotating assembly comprises a rotating shaft which is rotatably connected in the rotating hole and a connecting block which is fixedly connected to the upper end of the rotating shaft.

Through adopting above-mentioned technical scheme, when the runner assembly need take place rotatoryly, only need the connecting block to go to be connected with the valve rod transmission, when can making the valve rod take place the displacement, can drive the countershaft, make the pivot take place to rotate.

The invention is further configured to: a plurality of ring channels have been seted up along its length direction on the periphery wall of pivot, the ring channel is embedded to have a sealing washer, the sealing washer is contradicted with the downthehole perisporium of commentaries on classics.

Through adopting above-mentioned technical scheme, through setting up ring channel and sealing washer to make the pivot in the bull kept, can reduce the clearance between the two through the sealing washer, play certain separation effect to water.

The invention is further configured to: offer the recess with the through-hole intercommunication on the periphery wall of pivot, the groove depth of recess is less than the diameter of pivot, the groove width of recess is greater than the diameter of pivot, the input that promotes the subassembly inlays in the recess.

The invention is further configured to: the pushing assembly comprises a sliding block embedded in the groove and the length of the sliding block is larger than the groove depth of the groove, a limiting sleeve fixedly connected with the sliding block and slidably connected in the through hole and the through groove, a pushing block with one end located in the limiting sleeve, and an elastic piece sleeved between the outer side of the pushing block and the limiting sleeve, wherein the length of the pushing block is equal to the distance between the limiting sleeve and the sealing assembly.

The invention is further configured to: the seal assembly includes that fixed connection just is located the gasket between promotion subassembly and the contact switch in leading to the inslot, the gasket is the tubbiness, just be provided with in the gasket and lead to the inslot perisporium and can dismantle the sealing member of being connected, the outer lane of gasket is located the sealing member and leads to between the inslot perisporium.

Through adopting above-mentioned technical scheme, when seal assembly need seal, only need to make the gasket closely bond with the interior perisporium that leads to the groove to make laminating department between them can not take place the condition of leaking, can make the gasket shelter from logical groove effectively, the sealing member can be strengthened the gasket and lead to the sealed effect between the inslot perisporium simultaneously, makes the gasket and lead to the condition that can not take place to leak between the inslot perisporium.

The invention is further configured to: the sealing member is an external thread nut, an internal thread is arranged on the inner peripheral wall of the through groove, and the sealing member is detachably connected with the inner peripheral wall of the through groove through the internal thread.

In conclusion, the invention has the following beneficial effects:

when this travel switch need use, can come to effectively completely cut off the inside of pushing assembly and installation shell through seal assembly, avoid the water in the valve to enter into the inside of installation shell to when runner assembly receives the triggering of valve rod, it can drive pushing assembly come the point contact switch immediately and trigger, when making this travel switch be located the valve, can comparatively in time and sensitively receive the drive of valve rod and trigger, improve its work efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a cross-sectional view of the mounting housing of the present invention;

fig. 5 is an enlarged view at B in fig. 4.

In the figure: 1. mounting a shell; 11. an accommodating chamber; 111. a through groove; 2. a mounting head; 21. sealing the end; 211. a through hole; 22. a pillar portion; 221. hole turning; 3. connecting blocks; 4. a contact switch; 5. a slider; 6. a limiting sleeve; 7. an elastic member; 8. a rotating shaft; 81. a groove; 9. sealing the sheet; 91. a seal member; 92. and (7) pushing the block.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Example (b):

a novel travel switch is shown in figures 1 and 2 and comprises a mounting shell 1, a contact switch 4 detachably connected in the mounting shell 1, a mounting head 2 detachably connected with the mounting shell 1, a pushing component connected in the mounting head 2 in a sliding mode and used for being in contact with the contact switch 4, and a rotating component connected in the mounting head 2 in a rotating mode and in transmission connection with an input end of the pushing component, wherein a sealing component is arranged between the pushing component and the contact switch 4, the sealing component has elasticity, and deformation quantity of the sealing component is equal to displacement quantity of the pushing component.

As shown in fig. 3, the mounting shell 1 is in a shape of a rectangular parallelepiped, and the mounting shell 1 is divided into an upper shell and a lower shell, the upper shell and the lower shell are welded together, a containing cavity 11 is formed in the mounting shell 1, and a through groove 111 communicated with the containing cavity 11 is formed in the mounting shell 1 towards one side of the mounting head 2.

The mounting head 2 comprises a sealing head 21 detachably connected with the mounting shell 1 through a bolt and a column part 22 integrally formed with the top surface of the sealing head 21, the sealing head 21 is in a cuboid strip shape, a through hole 211 communicated with the through groove 111 is formed in one side of the sealing head 21, facing the mounting shell 1, and a rotary hole 221 communicated with the through hole 211 is formed in the top surface of the column part 22.

As shown in fig. 3, the rotating assembly is connected in changeing the hole 221 in a rotating way, push assembly sliding connection is in through-hole 211 and logical groove 111, and the rotating assembly has the effort of circumference gyration, the rotating assembly is including rotating connecting pivot 8 and the connecting block 3 of fixed connection in the commentaries on classics hole 221 upper end in the rotation, a plurality of ring channels have been seted up along its length direction on the periphery wall of pivot 8, the ring channel is embedded to have the sealing washer, the sealing washer contradicts with changeing the interior perisporium of hole 221.

As shown in fig. 3-5, a groove 81 communicated with the through hole 211 is formed in the peripheral wall of the rotating shaft 8, the depth of the groove 81 is smaller than the diameter of the rotating shaft 8, the width of the groove 81 is larger than the diameter of the rotating shaft 8, the input end of the pushing assembly is embedded in the groove 81, the pushing assembly comprises a slider 5 embedded in the groove 81 and the length of which is larger than the depth of the groove 81, a limit sleeve 6 fixedly connected with the slider 5 and slidably connected in the through hole 211 and the through groove 111, a push block 92 with one end located in the limit sleeve 6, and an elastic member 7 sleeved between the outer side of the push block 92 and the limit sleeve 6, the elastic member 7 is a spring, and the length of the push block 92 is equal to the distance between the limit.

The seal assembly includes fixed connection and just is located the gasket 9 between promotion subassembly and the contact switch 4 in leading to groove 111, gasket 9 is the tubbiness, and be provided with in the gasket 9 and can dismantle the sealing member 91 of being connected with leading to groove 111 internal perisporium, the outer lane of gasket 9 is located between sealing member 91 and the leading to groove 111 internal perisporium, sealing member 91 is the external screw thread nut, the internal thread has been seted up on the internal perisporium of leading to groove 111, sealing member 91 can dismantle with the leading to groove 111 internal perisporium through the internal thread.

And the electric wire of electrocution switch runs through installation shell 1 to the external world, and the electric wire runs through installation shell 1 department and coats and has the sealant layer.

When the travel switch is used, the travel switch can be arranged in a humid environment or directly arranged in water, when the travel switch is arranged in the water environment, the sealing ring can effectively seal a gap between the rotary shaft 8 and the rotary hole 221, when the rotary shaft 8 rotates, the sealing ring can rotate relative to the rotary shaft and can also rotate along with the rotary shaft, and when the rotary shaft 8 rotates along with the rotary shaft, the contact area between the sealing ring and the inner peripheral wall of the shaft hole is small, the generated friction force is small, the smooth rotation of the rotary shaft 8 cannot be influenced, in addition, the sealing component can effectively seal the contact switch 4 in the mounting shell 1, the sealing sheet 9 made of rubber can be tightly attached to the inner peripheral wall of the through groove 111, the sealing sheet 9 can effectively block the water in the through groove 111, and the external thread nut can be used for meshing the edge of the sealing sheet 9 through the internal thread on the inner peripheral wall of the through groove 111, thereby make sealing member 91 can further promote the sealed effect of gasket 9 to make logical groove 111 department can't take place the condition of the intaking of leaking, at last because the electric wire of electric shock switch runs through installation shell 1 to the external world, the electric wire runs through installation shell 1 department and coats and has the sealant layer, makes the electric wire of electric shock switch run through installation shell 1 department also can obtain better sealed effect.

When the travel switch needs to work, the connecting block 3 is connected with a valve rod in a valve, when the valve rod displaces, the valve rod pushes the connecting block 3, the connecting block 3 can drive the rotating shaft 8 to rotate, when the rotating shaft 8 rotates, the rotating shaft is limited by the rotating hole 221, the connecting block 3 can directly rotate when deflecting, meanwhile, the sliding block 5 embedded in the groove 81 originally keeps a state of being tightly attached to the inner wall of the groove 81, once the rotating shaft 8 with the groove 81 rotates, the inner wall of the groove 81 can push the sliding block 5, the sliding block 5 can push the push block 92 through the limiting sleeve 6, so that the push block 92 can displace, and the extrusion sealing sheet 9 generates elastic deformation, so that the push block 92 can be abutted against the contact switch 4 through the sealing sheet 9, so that the electric shock switch can be triggered, and when the limiting sleeve 6 displaces, the distance between the limiting sleeve and the sealing piece 91 is reduced, the elastic piece 7 between the two is compressed, after the contact switch 4 is triggered, elastic potential energy can be released through the elastic piece 7, so that the elastic piece 7 is restored to the original state, the limiting sleeve 6 and the sliding block 5 are both subjected to reverse displacement, the rotating shaft 8 can also be pushed by the sliding block 5 to rotate in the reverse direction, and the travel switch is restored to the original state.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.