CN210181919U

CN210181919U - Valve body action demonstration device for mechanical teaching

Info

Publication number: CN210181919U
Application number: CN201920771673.5U
Authority: CN
Inventors: Longxing Chen; 陈龙兴; Deguang Lu; 陆德光; Kangping Wu; 吴康平
Original assignee: Guizhou Equipment Manufacturing Vocational College
Current assignee: Guizhou Equipment Manufacturing Vocational College
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-03-24
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a valve body action presentation device for machine teaching, the inside that includes transparent valve body shell and transparent valve body shell is provided with the airtight chamber that is the cylinder shape, the inside of airtight chamber is provided with the stem along its axis direction slip, be provided with first piston, second piston, fifth piston, fourth piston and the third piston that distributes along its axis direction on the stem in proper order, it is provided with the push-and-pull rod that is used for driving to slide on the lateral wall of transparent valve body shell the stem removes in the airtight chamber, the push-and-pull rod extends to the one end fixed connection in the inside of airtight chamber is to the stem, adopts transparent material can be clear to demonstrate the interior theory of operation of three-position five-way valve through transparent valve body shell, and manual promotion push-and-pull rod removes and slowly puts its inside stem and the motion trail of piston, demonstrates the intercommunication dress attitude of its individual position, the students can understand and study conveniently.

Description

Valve body action demonstration device for mechanical teaching

Technical Field

The utility model relates to a machinery teaching technical field, concretely relates to valve body action presentation device for machinery teaching.

Background

In mechanical teaching, because the inner structure of valve body is complicated, has multiple operating condition mostly, like three-position five-way solenoid valve, it is comparatively difficult that the student masters its theory of operation, so in the teaching, need a valve body action presentation device for mechanical teaching for carry out clear show to its theory of operation, the student of being convenient for masters its principle fast.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a valve body action presentation device for mechanical teaching in order to solve above-mentioned problem, have can be clearly clear demonstrate the theory of operation to tribit five-way valve, put slowly its movement track, make things convenient for the student to understand advantages such as study, see the explanation below for details.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a valve body action demonstration device for mechanical teaching, which comprises a transparent valve body shell and a sealed cavity in the shape of a cylinder arranged in the transparent valve body shell, the inner part of the closed cavity is provided with a core column in a sliding way along the axis direction, the core column is provided with a first piston, a second piston, a fifth piston, a fourth piston and a third piston which are sequentially distributed along the axis direction, a push-pull rod for driving the core column to move in the closed cavity is arranged on the side wall of the transparent valve body shell in a sliding manner, one end of the push-pull rod extending into the sealed cavity is fixedly connected to the core column, one end of the push-pull rod penetrating out of the transparent valve body shell is provided with a handle, a limiting shoulder is arranged on the push-pull rod, and a limiting reset assembly is arranged between one end of the core column, which is far away from the push-pull rod, and the inner side wall of the closed cavity;

set up first ring channel, second ring channel and the third ring channel that distributes along its axis direction on the inside lateral wall of airtight chamber, seted up on the lateral wall of transparent valve body shell respectively with first ring channel the second ring channel with the corresponding third through-hole of third ring channel, second through-hole and first through-hole are located first ring channel with between the second ring channel the fourth through-hole has been seted up on the transparent valve body shell lateral wall, be located the second ring channel with between the third ring channel the fifth through-hole has been seted up on the transparent valve body shell lateral wall, first through-hole the second through-hole the third through-hole the fourth through-hole with the fifth through-hole communicates with airtight chamber respectively.

Preferably, spacing subassembly that resets includes first spacing post and the spacing post of second, first spacing post fixed connection to on the inside wall in airtight chamber, the spacing post fixed connection of second to on the stem, first spacing post with the outside nestification of the spacing post of second has reset spring.

Preferably, the push-pull rod is provided with a mark groove.

Preferably, the outer side surfaces of the first piston, the second piston, the third piston, the fourth piston, and the fifth piston are coated with a pigment.

Preferably, a protective washer is arranged on the outer side of the handle.

Has the advantages that: the internal working principle of the three-position five-way valve can be clearly shown by adopting a transparent material for the transparent valve body shell, the push-pull rod is manually pushed to move to slowly release the movement tracks of the inner core column and the piston of the push-pull rod, the communicated state of each position of the push-pull rod is shown, and students can conveniently understand and study.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

fig. 2 is a schematic view of a first state of the present invention;

fig. 3 is a schematic view of a second state of the present invention;

fig. 4 is a third state diagram of the present invention.

The reference numerals are explained below: 1. a transparent valve body housing; 2. a handle; 3. marking a slot; 4. a push-pull rod; 5. a limiting shoulder; 6. a first piston; 7. a second piston; 8. a first through hole; 9. a second through hole; 10. a third through hole; 11. a fourth via hole; 12. a fifth through hole; 13. a stem; 14. a limiting reset component; 14a, a return spring; 14b, a first limit column; 14c, a second limiting column; 15. a closed cavity; 16. a third piston; 17. a fourth piston; 18. a fifth piston; 19. a first annular groove; 20. A second annular groove; 21. a third annular groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a valve body action demonstration device for mechanical teaching, which comprises a transparent valve body shell 1 and a sealed cavity 15 in the shape of a cylinder arranged inside the transparent valve body shell 1, a stem 13 arranged inside the sealed cavity 15 in a sliding way along the axis direction, a first piston 6 and a second piston 7 arranged on the stem 13 in sequence along the axis direction, the valve body comprises a fifth piston 18, a fourth piston 17 and a third piston 16, wherein a push-pull rod 4 for driving a core column 13 to move in a sealed cavity 15 is slidably arranged on the side wall of a transparent valve body shell 1, one end, extending into the sealed cavity 15, of the push-pull rod 4 is fixedly connected to the core column 13, one end, penetrating out of the transparent valve body shell 1, of the push-pull rod 4 is provided with a handle 2, a limiting shoulder 5 is arranged on the push-pull rod 4, and a limiting reset assembly 14 is arranged between one end, far away from the push-pull rod 4, of the core column 13 and the; as shown in fig. 2, the loading state is a simulated non-powered loading state, at this time, the third piston 16 and the fourth piston 17 are distributed on both sides of the first annular groove 19, the fifth piston 18 is located on the right side of the second annular groove 20, the first piston 6 and the second piston 7 are both distributed on the right side of the third annular groove 21, the valve body internal communication loading state at this time is as shown by the bold line in the figure, and the position of the push-pull rod 4 is conceived by the limit shoulder 5 and is abutted against the inner side wall of the closed cavity 15, fig. 3 and fig. 4 show the position change of each piston and the generated effect after the push-pull rod 4 is pushed in sequence.

The inside lateral wall of sealed chamber 15 is seted up along its axis direction distributed's first ring channel 19, second ring channel 20 and third ring channel 21, set up respectively with first ring channel 19 on the lateral wall of transparent valve body shell 1, the third through-hole 10 that second ring channel 20 and third ring channel 21 correspond, second through-hole 9 and first through-hole 8, set up fourth through-hole 11 on the transparent valve body shell 1 lateral wall that is located between first ring channel 19 and the second ring channel 20, set up fifth through-hole 12 on the transparent valve body shell 1 lateral wall that is located between second ring channel 20 and the third ring channel 21, first through-hole 8, second through-hole 9, third through-hole 10, fourth through-hole 11 and fifth through-hole 12 communicate with sealed chamber 15 respectively.

The limiting reset component 14 comprises a first limiting column 14b and a second limiting column 14c, the first limiting column 14b is fixedly connected to the inner side wall of the sealed cavity 15, the second limiting column 14c is fixedly connected to the core column 13, and a reset spring 14a is nested on the outer sides of the first limiting column 14b and the second limiting column 14 c. As shown in fig. 4, in this assembled state, the ends of the first stopper post 14b and the second stopper post 14c close to each other abut against each other to thereby restrict the stroke of the push-pull rod 4, and after the push-pull rod 4 is loosened, the stem 13 is restored to its original position by the elastic force of the return spring 14 a.

The push-pull rod 4 is provided with a mark groove 3. For an operator to conveniently grasp the precise position of fig. 3, fig. 3 is a schematic view of the valve body in an internally closed state.

The outer side surfaces of the first piston 6, the second piston 7, the third piston 16, the fourth piston 17, and the fifth piston 18 are coated with paint. For highlighting the moving process of the piston.

A protective gasket is arranged on the outer side of the handle 2. For preventing slippage during operation.

By adopting the structure, the transparent valve body shell 1 is made of transparent materials, so that the action demonstration of the core column 13 and the piston in the sealed cavity 15 can be conveniently observed, when the three-position five-way valve is subjected to teaching demonstration, the push-pull rod 4 is pushed to move into the sealed cavity 15, the identification groove 3 is positioned at the wiring position of the transparent valve body shell 1 and the push-pull rod 4, and the second state schematic diagram of the valve body action shown in fig. 3 is shown at the moment;

the push-pull rod 4 is continuously pushed to move into the closed cavity 15, when the first limit column 14b abuts against the second limit column 14c and the push-pull rod 4 is not pushed, the third state schematic diagram of the valve body action shown in fig. 4 is shown at this time, the push-pull rod 4 is loosened, the push-pull rod 4 and the core column 13 reset under the action of the elastic force of the reset spring 14a, the position of the push-pull rod 4 is limited through the limit shoulder 5, and the first state schematic diagram of fig. 2 is returned at this time, so that the demonstration is completed.

The utility model has the advantages that: the internal working principle of the three-position five-way valve can be clearly shown by adopting the transparent material for the transparent valve body shell 1, the push-pull rod 4 is manually pushed to move to slowly release the movement tracks of the inner core column 13 and the piston of the push-pull rod, the communicated state of each position of the push-pull rod is shown, and students can conveniently understand and learn.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a valve body action presentation device for mechanical teaching which characterized in that: the valve comprises a transparent valve body shell (1) and a sealed cavity (15) which is in a cylinder shape and is arranged inside the transparent valve body shell (1), a core column (13) is arranged inside the sealed cavity (15) in a sliding mode along the axis direction of the sealed cavity, a first piston (6), a second piston (7), a fifth piston (18), a fourth piston (17) and a third piston (16) which are sequentially distributed along the axis direction of the core column (13) are arranged on the core column (13), a push-pull rod (4) used for driving the core column (13) to move in the sealed cavity (15) is arranged on the side wall of the transparent valve body shell (1) in a sliding mode, one end, extending to the inside of the sealed cavity (15), of the push-pull rod (4) is fixedly connected to the core column (13), a handle (2) is arranged at one end, penetrating out of the push-pull rod (4), and a limiting platform (5) is arranged on the push, a limiting reset assembly (14) is arranged between one end of the core column (13) far away from the push-pull rod (4) and the inner side wall of the closed cavity (15);

set up first ring channel (19), second ring channel (20) and third ring channel (21) that distribute along its axis direction on the inside lateral wall of airtight chamber (15), seted up on the lateral wall of transparent valve body shell (1) respectively with first ring channel (19) second ring channel (20) with third ring channel (21) corresponding third through-hole (10), second through-hole (9) and first through-hole (8), be located first ring channel (19) with between second ring channel (20) seted up fourth through-hole (11) on transparent valve body shell (1) lateral wall, be located second ring channel (20) with between third ring channel (21 fifth through-hole (12) have been seted up on transparent valve body shell (1) lateral wall, first through-hole (8) second through-hole (9) third through-hole (10), The fourth through hole (11) and the fifth through hole (12) are respectively communicated with a closed cavity (15).

2. The valve body motion demonstration device for mechanical teaching according to claim 1, wherein: spacing subassembly (14) that resets includes first spacing post (14b) and second spacing post (14c), first spacing post (14b) fixed connection to on the inside wall of airtight chamber (15), second spacing post (14c) fixed connection to on stem (13), first spacing post (14b) with the outside nestification of second spacing post (14c) has reset spring (14 a).

3. The valve body motion demonstration device for mechanical teaching according to claim 1, wherein: and the push-pull rod (4) is provided with an identification groove (3).

4. The valve body motion demonstration device for mechanical teaching according to claim 1, wherein: the outer side surfaces of the first piston (6), the second piston (7), the third piston (16), the fourth piston (17) and the fifth piston (18) are coated with pigment.

5. The valve body motion demonstration device for mechanical teaching according to claim 1, wherein: and a protective gasket is arranged on the outer side of the handle (2).