Dynamic sealing waterproof rotary switch

Abstract

The utility model relates to the technical field of electrical switches, in particular to a dynamic sealing waterproof rotary switch, and adopts the technical scheme that the dynamic sealing waterproof rotary switch comprises a protective shell, a knob, a connecting column, a connecting sleeve, a sliding assembly and a dynamic sealing ring, a knob is arranged on the front side of the protective shell, a connecting column is fixedly connected to the front side of the protective shell, a connecting sleeve is screwed on the connecting column, a sliding assembly is arranged between the connecting sleeve and the knob, and a dynamic sealing ring located on the outer side of the connecting assembly is installed between the connecting sleeve and the knob; according to the utility model, the connecting column which is originally installed on the switch piece is changed to be fixedly connected to the outer side of the protective shell, and the knob is fixed to the front side of the protective shell through the connecting sleeve which is connected with the knob through the sliding assembly, so that the knob is connected to the outer side of the connecting column in a sleeving manner, and a gap is transferred to the outside; and a dynamic sealing ring is arranged between the connecting sleeve and the protective shell, so that water vapor can be prevented from penetrating through a gap between the protective shells.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electrical switch, specifically relates to a dynamic sealing waterproof rotary switch. BACKGROUND

[0002] The rotary switch is controlled by rotating the handle to drive the rotation shaft on the switch piece, so as to control the on-off of the main contact. It is widely installed on the pipeline of liquid and gas to adjust the flow and pressure of liquid and gas due to its simple and intuitive operation and convenient maintenance.

[0003] At present, the existing rotary switch is fixed in the protective sleeve through the connecting sleeve, and the handle is inserted into the connecting sleeve. There is a gap between the handle and the connecting sleeve, and water vapor can easily enter the inside of the protective sleeve through the gap and contact the switch piece, causing damage to the switch piece.

[0004] Therefore, in view of the above-mentioned problems of the existing rotary switch handle clamped in the connecting sleeve, the gap between the handle and the connecting sleeve, and the low waterproof level, a dynamic sealing waterproof rotary switch is designed, which is fixedly connected with a connecting column outside the protective shell, and a sealing ring is installed between the connecting sleeve and the handle to improve the waterproof level. SUMMARY

[0005] In order to overcome the problem that the handle of the existing rotary switch is clamped in the connecting sleeve and there is a gap between the handle and the connecting sleeve.

[0006] The technical scheme of the utility model is as follows: a dynamic sealing waterproof rotary switch, comprising a protective shell, a rotary knob, a connecting column, a connecting sleeve, a sliding assembly and a dynamic sealing ring; the front side of the protective shell is provided with a rotary knob, the front side of the protective shell is fixedly connected with a connecting column, the connecting column is screwed with a connecting sleeve, the sliding assembly is arranged between the connecting sleeve and the rotary knob, and the dynamic sealing ring is arranged outside the connecting assembly between the connecting sleeve and the rotary knob.

[0007] Preferably, the connecting column originally installed on the switch piece is changed to be fixedly connected to the outside of the protective shell, and the connecting sleeve connected with the rotary knob through the sliding assembly is fixed to the front side of the protective shell. This design makes the rotary knob sleeved outside the connecting column, and the gap is transferred to the outside. The dynamic sealing ring is installed between the connecting sleeve and the protective shell, which can prevent water vapor from passing through the gap between the protective shells.

[0008] Preferably, the sliding assembly comprises a sliding groove and a sliding block; the connecting sleeve is provided with an annular sliding groove, and the annular sliding block is slidably connected in the sliding groove. The sliding block is fixedly connected to the outside of the rotary knob and rotates in the sliding groove to drive the rotary knob to rotate on the front side of the connecting sleeve, which can prevent the connecting sleeve from rotating when the rotary knob rotates.

[0009] As preferred, the slider is sleeved with a dynamic sealing ring outside, the dynamic sealing ring is tightly attached between the connecting sleeve and the knob, due to the sliding connection between the connecting sleeve and the knob, in order to avoid the gap caused by rotation to cause water vapor to enter, the dynamic sealing ring can realize sealing during rotation.

[0010] As preferred, the knob is fixedly connected with a handle at the front end, the handle is fixedly connected with an indication mark at the upper end of the handle, the handle is rotated to drive the knob to rotate, and the staff can determine the state of the switch according to the position of the indication mark.

[0011] As preferred, the protective shell is internally installed with a switch piece, the switch piece is installed with a connecting piece at the rear side for connecting a circuit, the switch piece is movably connected with a rotating shaft, the rotating shaft is located inside the connecting column, the connecting column and the knob sleeved outside the connecting column can protect the rotating shaft, and the connecting piece can connect the switch with a related device to control the device through the switch.

[0012] As preferred, the rotating shaft is fixedly connected with a buckle outside, the knob is fixedly connected with a limiting column inside, a clamping groove matched with the buckle is formed in the limiting column, the limiting column and the rotating shaft are connected through the buckle and the clamping groove, and the rotating shaft is driven to rotate together through the limiting column when the knob rotates.

[0013] As preferred, the switch piece is fixedly connected with a mounting seat at the front side, the mounting seat is provided with an anchoring hole, and the mounting seat is installed inside the protective shell; the switch piece is fixedly connected inside the protective shell by penetrating the anchoring hole in the mounting seat with a screw as an anchoring piece.

[0014] The utility model discloses beneficial effect:

[0015] 1. The connecting column originally installed on the switch piece is changed into fixed connection on the protective shell outside, the connecting sleeve for connecting the knob through the sliding assembly fixes the knob on the front side of the protective shell, the design makes the knob sleeve outside the connecting column, and the gap is transferred to the outside, the dynamic sealing ring is installed between the connecting sleeve and the protective shell, and water vapor can be prevented from penetrating through the gap between the protective shell.

[0016] 2. The movable shaft of the switch piece is inserted into the limiting column, the rotating shaft is driven to rotate together when the knob is rotated due to the existence of the buckle and the clamping groove, and the switch of the main contact point is controlled. DRAWINGS

[0017] Figure 1 The protective shell and the knob of the dynamic sealing waterproof rotary switch are shown as the cross-sectional structure schematic view.

[0018] Figure 2 The first three-dimensional structure schematic view of the dynamic sealing waterproof rotary switch is shown.

[0019] Figure 3 The connection column and the protective shell of the dynamic sealing waterproof rotary switch are shown in the three-dimensional structure schematic view.

[0020] Figure 4 The connection sleeve of the dynamic sealing waterproof rotary switch is shown in the three-dimensional structure schematic view.

[0021] Figure 5 The knob inside of the dynamic sealing waterproof rotary switch is shown in the three-dimensional structure schematic view.

[0022] Figure 6 The knob and the connection sleeve of the dynamic sealing waterproof rotary switch are shown in the three-dimensional structure schematic view.

[0023] Figure 7 The switch part of the dynamic sealing waterproof rotary switch is shown in the three-dimensional structure schematic view.

[0024] The reference signs are explained as follows: 1, protective shell; 2, knob; 3, connection column; 4, connection sleeve; 5, dynamic sealing ring; 601, sliding groove; 602, sliding block; 7, handle; 8, indication mark; 9, switch part; 11, connecting piece; 12, rotating shaft; 13, buckle; 14, limiting column; 15, clamping groove; 16, mounting seat; 17, anchoring hole. DETAILED DESCRIPTION

[0025] The utility model is further explained in combination with the drawings and examples.

[0026] Please refer to Figures 1-7 The utility model provides an embodiment: a dynamic sealing waterproof rotary switch includes protective shell 1, knob 2, connection column 3 and connection sleeve 4, sliding assembly and dynamic sealing ring 5, the front side of protective shell 1 is provided with knob 2, the front side fixed connection of protective shell 1 has connection column 3, and the connection sleeve 4 is screwed on connection column 3, and the sliding assembly is arranged between connection sleeve 4 and knob 2, and the dynamic sealing ring 5 located outside the connecting assembly is installed between connection sleeve 4 and knob 2, by changing the originally installed connection column 3 on switch part 9 to fixed connection on the outside of protective shell 1, and the connection sleeve 4 is connected with knob 2 through the sliding assembly, and knob 2 is fixed on the front side of protective shell 1, and the design makes knob 2 sleeve connection on the outside of connection column 3, and the gap is transferred to the outside, and the dynamic sealing ring 5 is installed between connection sleeve 4 and protective shell 1, can avoid water vapor through the gap between protective shell 1, and the structure of switch part 9 usually includes insulating substrate, moving piece, fixed piece and the like, and the contact is arranged on the moving piece and fixed piece, wherein the moving piece rotates along with rotating shaft 12, and when rotating, the moving piece and the magnet fixed on the switch produce interaction force, change the contact position, through the contact or separation of the contact on the fixed piece, thereby changing the circuit state.

[0027] Please refer to Figures 2-5 In the embodiment, the sliding assembly comprises a sliding groove 601 and a sliding block 602; the connecting sleeve 4 is provided with an annular sliding groove 601, the sliding groove 601 is slidably connected with an annular sliding block 602, the sliding block 602 is fixedly connected to the outer side of the knob 2, a dynamic sealing ring 5 is sleeved on the outer side of the sliding block 602, the dynamic sealing ring 5 is tightly attached between the connecting sleeve 4 and the knob 2, the knob 2 is fixedly connected with a handle 7 at the front end, the handle 7 is fixedly connected with an indicating mark 8 at the upper end of the handle 7, the sliding block 602 rotates in the sliding groove 601, thereby driving the knob 2 to rotate at the front side of the connecting sleeve 4, which can avoid the connecting sleeve 4 from rotating when the knob 2 rotates, since the connecting sleeve 4 and the knob 2 are slidably connected, in order to avoid the gap caused by rotation from allowing water vapor to enter, the dynamic sealing ring 5 can realize sealing during rotation, the knob 2 is rotated by rotating the handle 7, and the staff can determine the state of the switch according to the position of the indicating mark 8.

[0028] Please refer to Figures 5-7 In the embodiment, the protective shell 1 is provided with a switch piece 9, the rear side of the switch piece 9 is provided with a connecting piece 11 for connecting the circuit, the switch piece 9 is movably connected with a rotating shaft 12, the rotating shaft 12 is located inside the connecting column 3, the outer side of the rotating shaft 12 is fixedly connected with a buckle 13, the inner side of the knob 2 is fixedly connected with a limiting column 14, the limiting column 14 is provided with a clamping groove 15 matched with the buckle 13, the front side of the switch piece 9 is fixedly connected with a mounting seat 16, the mounting seat 16 is provided with an anchoring hole 17, the mounting seat 16 is mounted on the inner side of the protective shell 1, the connecting column 3 and the knob 2 sleeved on the outer side of the connecting column 3 can protect the rotating shaft 12, the connecting piece 11 can connect the switch with the related device, the rotating shaft 12 can be connected with the limiting column 14 through the buckle 13 and the clamping groove 15, the rotating shaft 12 can be driven to rotate together with the limiting column 14 when the knob 2 rotates, and the switch piece 9 can be fixed on the inner side of the protective shell 1 by passing the screw as an anchoring piece through the anchoring hole 17 on the mounting seat 16.

[0029] When working, first, the staff inserts the rotating shaft 12 of the switch piece 9 into the connecting column 3 from the inner side of the protective shell 1, then installs the switch piece 9 in the protective shell 1 by passing the screw as an anchoring piece through the anchoring hole 17 on the mounting seat 16, then observes the clamping groove 15 in the knob 2 according to the buckle 13 on the front side of the rotating shaft 12, and rotates the knob 2 to a position matched with the buckle 13, then sleeves the connecting sleeve 4 and the knob 2 on the outer side of the connecting column 3, then holds the knob 2 while twisting the connecting sleeve 4, the sliding block 602 slides in the sliding groove 601 when the connecting sleeve 4 rotates, which can keep the knob 2 from rotating with the connecting sleeve 4, fixes the knob 2 on the outer side of the connecting sleeve 4, and fixes the connecting piece 11 by connecting the circuit on the connecting piece 11, then installs the protective shell 1 on the pipeline.

[0030] The dynamic sealing ring 5 can fill the gap between the connecting sleeve 4 and the knob 2, avoid water vapor intrusion, the user holds the handle 7 to drive the knob 2 to rotate, through the limitation of the limiting column 14, the limiting column 14 can drive the rotating shaft 12 to rotate together, change the on-off relationship of the main contact inside the switch piece 9, so as to realize the change of the switch state of the device connected with the rotary switch, the worker can determine the switch state of the device through the position of the indicating mark 8.

[0031] Through the above steps, the existing rotary switch is improved, the connecting column 3 originally installed on the switch piece 9 is changed to be fixedly connected to the outside of the protective shell 1, and the connecting sleeve 4 connected with the knob 2 through the sliding assembly fixes the knob 2 on the front side of the protective shell 1, such a design makes the knob 2 sleeved outside the connecting column 3, and the gap is transferred to the outside, the dynamic sealing ring 5 is installed between the connecting sleeve 4 and the protective shell 1, which can avoid water vapor passing through the gap between the protective shell 1, so as to solve the problem that the handle 7 of the existing rotary switch is clamped in the connecting sleeve 4, and there is a gap between the handle 7 and the connecting sleeve 4.

[0032] The above describes the embodiments of the utility model in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the utility model.

Claims

1. A dynamic sealed waterproof rotary switch, comprising a protective housing (1) and a knob (2); characterized in that, It also includes a connecting post (3) and a connecting sleeve (4), a sliding component and a dynamic sealing ring (5); a knob (2) is provided on the front side of the protective shell (1), a connecting post (3) is fixedly connected to the front side of the protective shell (1), a connecting sleeve (4) is screwed onto the connecting post (3), a sliding component is provided between the connecting sleeve (4) and the knob (2), and a dynamic sealing ring (5) located on the outside of the connecting component is installed between the connecting sleeve (4) and the knob (2).

2. The dynamic sealing and waterproof rotary switch according to claim 1, characterized in that, The sliding assembly includes a groove (601) and a slider (602); the connecting sleeve (4) has an annular groove (601), and an annular slider (602) is slidably connected in the groove (601), and the slider (602) is fixedly connected to the outside of the knob (2).

3. The dynamic sealing and waterproof rotary switch according to claim 2, characterized in that, A dynamic sealing ring (5) is fitted on the outside of the slider (602), and the dynamic sealing ring (5) is tightly attached between the connecting sleeve (4) and the knob (2).

4. The dynamic sealing and waterproof rotary switch according to claim 3, characterized in that, A handle (7) is fixedly connected to the front end of the knob (2), and an indicator mark (8) located on the upper end of the handle (7) is fixedly connected to the front side of the handle (7).

5. The dynamic sealing and waterproof rotary switch according to claim 4, characterized in that, A switch (9) is installed inside the protective housing (1). A connecting piece (11) for connecting the circuit is installed on the rear side of the switch (9). A rotating shaft (12) is movably connected to the switch (9). The rotating shaft (12) is located inside the connecting post (3).

6. The dynamic sealing and waterproof rotary switch according to claim 5, characterized in that, A buckle (13) is fixedly connected to the outside of the rotating shaft (12), and a limit post (14) is fixedly connected inside the knob (2). A slot (15) matching the buckle (13) is opened on the limit post (14).

7. The dynamic sealing and waterproof rotary switch according to claim 6, characterized in that, The front side of the switch (9) is fixedly connected to a mounting base (16), and the mounting base (16) has an anchoring hole (17). The mounting base (16) is installed inside the protective shell (1).

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