CN209587285U - The electromagnetic unit of valve - Google Patents

Abstract

The utility model discloses the electromagnetic units of valve, including shell, piston seat is provided with below shell, a layer hole is formed in piston seat, including a piston guide seat, sealing element and piston guide seat are set gradually in layer hole, piston guide seat upper and lower ends bear against shell and by piston seat so that it is limited, sealing element is pressed between piston guide seat and layer hole bottom wall, piston guide seat includes the first part with hollow cavity and the second part of molding and first part lower end, in being provided centrally with for providing the annular wall of guiding for piston for first part's cavity, the supporting rib for connecting the two is provided between annular wall and first part's side wall.The utility model structure is simple, it is only necessary to which a piston guide pedestal toilet realizes the guiding of piston and the limit of sealing element.

Description

The electromagnetic unit of valve

Technical field

The utility model relates to valve fields, more particularly to a kind of electromagnetic unit of valve.

Background technique

Referring to Fig. 1, a kind of electromagnetic unit of existing valve, including shell 1 are shown in Fig. 1, the shell 1 includes lower section The piston seat 10 of setting is formed with a layer hole 10a in the piston seat 10, sets gradually the sealing in the layer hole 10a Part 6, piston guide block 7 and a retaining retaining ring 8.The sealing element 6 is pressed in layer hole bottom wall and the piston guide block 7 Between, the retaining retaining ring 8 is for preventing the piston guide block 7 in the sliding of axial position.The piston guide block 7 can be adopted With nylon plastic(s) can wear-resisting, corrosion resistant material, to increase the service life of electromagnetic unit entirety.

Due to needing while retaining retaining ring 8 and piston guide block 7 is arranged in above structure, cause electromagnetic unit whole Assemble more complicated, furthermore two parts cooperation required precisions are higher, processing slightly it is not in place be easy so that can not install or Leakage is easy to produce after installation.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide the electromagnetic unit of valve.

The utility model is achieved by the following technical solution: the electromagnetic unit of valve, including shell, setting are in shell Coil block, fixed core, dynamic iron core, piston and the elastic component being arranged between the fixed core and the dynamic iron core, it is described Piston is fixed on the dynamic iron core, and the dynamic iron core is under coil block electromagnetic force along its axial movement, the shell Lower section is provided with piston seat, and a layer hole, including a piston guide seat are formed in the piston seat, is successively set in the layer hole The sealing element and the piston guide seat are set, the piston guide seat upper and lower ends bear against shell and lean on piston seat in turn So that it is limited, the sealing element is pressed between the piston guide seat and layer hole bottom wall, the piston guide seat Second part including first part and molding and the first part lower end with hollow cavity, in first part's chamber Being provided centrally with for providing the annular wall of guiding for piston for body, sets between the annular wall and first part's side wall It is equipped with the supporting rib for connecting the two.

In above-mentioned technical proposal, the supporting rib is uniformly arranged along the circumferentially-spaced of the annular wall.

In above-mentioned technical proposal, the piston guide seat material is the PPS for the PTFE and 70% that mass ratio is 30%.

In above-mentioned technical proposal, inner fovea part is arranged in two diagonal angles of the upper end of the shell, is arranged on the inner fovea part There is fastener hole, a long spiro nail passes through the fastener hole and its end is screwed into piston seat.

In above-mentioned technical proposal, it is encapsulated that the lower end of the piston is provided with sealing.

The utility model has the following beneficial effects: the utility model structure is simple, it is only necessary to a piston guide pedestal toilet Realize the guiding of piston and the limit of sealing element.

Detailed description of the invention

Fig. 1 is the structural schematic diagram in background technique.

Fig. 2 is the structural schematic diagram of the utility model.

Fig. 3 is the schematic cross-sectional view of the utility model.

Fig. 4 is the schematic perspective view of piston guide seat.

Fig. 5 is the schematic perspective view of coil block.

Fig. 6 is the decomposition diagram of Fig. 5.

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing: referring to fig. 2 to Fig. 4, The electromagnetic unit of valve exists including shell 1, the coil block being arranged in shell 12, fixed core 3, dynamic iron core 4, piston 5 and setting Elastic component 100 between the fixed core 3 and the dynamic iron core 4, the piston are fixed on the dynamic iron core 4, the dynamic iron core 4 It is moved axially under 2 electromagnetic force of coil block along it, piston seat 10 is provided with below the shell 1, in the piston It is formed with a layer hole 10a, including a piston guide seat 6 in seat 10, the sealing element 7 and institute are set gradually in the layer hole 10a State piston guide seat 6,6 upper and lower ends of piston guide seat bear against shell 1 and by piston seat 10 so that it is limited, The sealing element 7 is pressed between the piston guide seat 6 and the layer hole 10a bottom wall, and the piston guide seat 6 includes tool There are the first part 60 of hollow cavity and the second part 61 of molding and 60 lower end of first part, in the first part 60 Cavity is provided centrally with for providing the annular wall 60a of guiding for piston 5, in the annular wall 60a and the first part Being provided between 60 side walls will be between the circumferential direction of supporting rib 60b, the supporting rib 60b along the annular wall 60a of the two connection Every being uniformly arranged.

6 material of piston guide seat is the PPS for the PTFE and 70% that mass ratio is 30%, therefore ensure that piston guide seat 6 have good wear-resisting property while, have by the hardness of chamber, in this way；When piston guide seat 6 and piston cooperate, no It is prone to wear and damages, will not be abutted against by sealing element when piston guide seat 6 limits the sealing element to its deformation.

As a kind of mode that the shell 1 and the piston seat 11 cooperate, two diagonal angles of the upper end of the shell 1 are set Inner fovea part 11 is set, fastener hole is provided on the inner fovea part 11, a long spiro nail 12 passes through the fastener hole and its end is screwed into In piston seat 10.

Preferably, the lower end of the piston 5 is provided with sealing encapsulated 50, for improving its sealing effect, and seals Encapsulated form is also easier in processing.

Referring to Fig. 5 to Fig. 6, the coil block 2 includes magnetic conduction bracket 20 and skeleton 21,21 extexine of the skeleton cladding There is enameled wire 21a, the skeleton 21 is in hollow form, including an inner hole 21b, and the fixed core 3 is set in inner hole 21b and institute It states 21 one end of skeleton to be tightly connected integrally, and is set in the magnetic conduction bracket 20 together, and the fixed core 3 is threaded through and leads In the limit hole 200 being arranged on the roof 20a of magnetic bracket 20, the dynamic iron core 4 is set in the inner hole 21b and extends outwardly It stretches out outside 21 port of skeleton.21 lower end of skeleton has a flange 21b, and the flange 21b is against the magnetic conduction bracket 20 Bottom wall 20b.

The magnetic conduction bracket 20 further includes the side wall 20c for connecting the roof 20a and the bottom wall 20b, the roof 20a, bottom wall 20b and side wall 20c are integrally machined molding, and the side of the roof 20a and the bottom wall 20b are provided with buckle Part further includes a magnetic conduction cover board 8, is provided with button bit on the magnetic conduction cover board 8, will by the cooperation of fastener and the button bit The magnetic conduction cover board 8 is removably installed in the side the side wall 20c relatively.Further, it is drawn on the enameled wire 21a There are positive terminal 210 and negative terminal 211, it is corresponding, it is provided on the magnetic conduction cover board 8 for positive terminal 210 and cathode The fairlead 80 that wiring 211 passes through.In above structure, formed by roof 20a, bottom wall 20b, side wall 20c and magnetic conduction cover board 8 The framework of one " mouth " font surrounds the skeleton 21 and the enameled wire 21a on skeleton 21, therefore prevents to greatest extent The generation of magnetic flux leakage.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments.Above-described embodiment and explanation in the application It is the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model the utility model described in book It will also have various changes and improvements.Above-mentioned changes and improvements are both fallen in the range of claimed invention.

Claims (5)

1. the electromagnetic unit of valve, including shell (1), the coil block (2), the fixed core (3), dynamic iron core that are arranged in shell (1) (4), piston (5) and the elastic component (100) being arranged between the fixed core (3) and the dynamic iron core (4), the piston are fixed In the dynamic iron core (4), the dynamic iron core (4) is under coil block (2) electromagnetic force along its axial movement, the shell (1) lower section is provided with piston seat (10), and a layer hole (10a) is formed in the piston seat (10), it is characterised in that: living including one It fills in guide holder (6), sets gradually sealing element (7) and the piston guide seat (6) in the layer hole (10a), the piston is led Shell (1) is born against to seat (6) upper and lower ends and by piston seat (10) so that it is limited, the sealing element (7) is pressed Tightly between the piston guide seat (6) and the layer hole (10a) bottom wall, the piston guide seat (6) includes having hollow cavity The first part (60) of body and the second part (61) of molding and the first part (60) lower end, in the first part (60) Cavity is provided centrally with for providing the annular wall (60a) of guiding for piston (5), in the annular wall (60a) and described the The supporting rib (60b) for connecting the two is provided between a part of (60) side wall.

2. the electromagnetic unit of valve as described in claim 1, it is characterised in that: the supporting rib (60b) is along the annular wall The circumferentially-spaced of (60a) is uniformly arranged.

3. the electromagnetic unit of the valve as described in any one of claims 1 or 2, it is characterised in that: the piston guide seat (6) Material is the PPS of the PTFE that mass ratio is 30% and 70%.

4. the electromagnetic unit of valve as claimed in claim 3, it is characterised in that: two diagonal angles of the upper end of the shell (1) are set Inner fovea part (11) are set, fastener hole is provided on the inner fovea part (11), a long spiro nail (12) passes through the fastener hole and its end Portion is screwed into piston seat (10).

5. the electromagnetic unit of valve as described in claim 1, it is characterised in that: be provided in the lower end of the piston (5) close Package glue (50).