CN207624227U - A kind of College Physics thermodynamics throttling process teaching demonstration tool - Google Patents

Abstract

The utility model discloses a kind of College Physics thermodynamics throttling process teaching demonstration tools, including tool body and oral siphon, the outer faces of the tool body are equipped with No.1 fixing groove, and the internal activity of No.1 fixing groove is equipped with No.1 choke block, the side of the No.1 fixing groove is equipped with No. two fixing grooves, and the internal activity of No. two fixing grooves is equipped with No. two choke blocks, the inner upper of the tool body is equipped with pressuring plate, and the side of pressuring plate is equipped with supercharging handle.A kind of College Physics thermodynamics throttling process teaching demonstration tool described in the utility model, equipped with No. two choke blocks, adjusting knob and convex mirror, students can be allowed to observe restriction effect when throttleng surface is of different sizes, and the height of educational aid can be adjusted according to the height difference in demonstration place, throttling process can be amplified simultaneously, it allows student clearer can see throttling process, brings better prospect of the application.

Description

A kind of College Physics thermodynamics throttling process teaching demonstration tool

Technical field

The utility model is related to machinery equipment field, more particularly to a kind of College Physics thermodynamics throttling process teaching demonstration Tool.

Background technology

Fluid flows in pipeline, encounter the section to narrow suddenly, due to showing the pressure reduction of fluid there are resistance As being known as throttling.Because there is frictions at contracting, part kinetic energy is made to be converted to frictional heat, so when steam throttling, state and Parameter all changes, but the phenomenon is typically all by text exhibition students can not be got information about in teaching process To its detailed process, so we have proposed a kind of College Physics thermodynamics throttling process teaching demonstration tools；Existing university There are certain drawbacks in physical thermodynamics throttling process teaching demonstration tool, students cannot be allowed to get information about when in use The difference of throttleng surface size can not adjust the height of educational aid, together to the influence with regard to restriction effect according to teaching place When teaching demonstration process can not be amplified, bring certain influence to physical thermodynamics throttling process teaching demonstration, For this purpose, it is proposed that a kind of College Physics thermodynamics throttling process teaching demonstration tool.

Utility model content

The main purpose of the utility model is to provide a kind of College Physics thermodynamics throttling process teaching demonstration tools, can Effectively to solve the problems in background technology.

To achieve the above object, the technical solution that the utility model is taken is：

A kind of College Physics thermodynamics throttling process teaching demonstration tool, including tool body and oral siphon, the tool The outer faces of main body are equipped with No.1 fixing groove, and the internal activity of No.1 fixing groove is equipped with No.1 choke block, No.1 section The both ends outer surface of flowing plate is flexibly connected by No.1 fixing groove with the outer faces of tool body, the No.1 fixing groove Side is equipped with No. two fixing grooves, and the internal activity of No. two fixing grooves is equipped with No. two choke blocks, the inside of the tool body Top is equipped with pressuring plate, and the side of pressuring plate is equipped with supercharging handle, and a side external surface of the tool body is equipped with grip hole, The supercharging handle is fixedly connected across grip hole with pressuring plate, and protective cover, and work are equipped on the outside of the upper end of the tool body Another side external surface for having main body is equipped with drainpipe, and the upper end outer surface of the drainpipe is equipped with drain valve, and the oral siphon is solid Dingan County is mounted in tool body close to the side of grip hole, and the upper end outer surface of oral siphon is equipped with into water valve, the tool body Leading exterior surface be installed with convex mirror, and the lower end outer surface of tool body is equipped with flexible threaded rod, and flexible screw thread The lower end outer surface of bar is movably installed with threaded rod cylinder, and a side external surface of the threaded rod cylinder is equipped with adjusting knob, and screw thread The lower end outside of bar cylinder is equipped with pedestal, and the lower end outer surface of the protective cover is equipped with connects hinge, and the inside appearance of protective cover Face is installed with windowpane, and the lower end of the protective cover is flexibly connected by connects hinge with the upper end of tool body.

Preferably, the upper end outer surface of the leading exterior surface of the convex mirror and pedestal is equipped with screw, the quantity of screw It it is eight groups, every group of quantity is two.

Preferably, the outer surface of the protective cover is equipped with seal washer, and seal washer gasket is a kind of rubber material Component.

Preferably, the outer surface of the flexible threaded rod is equipped with screw thread, and flexible threaded rod is revolved by screw thread and adjusting Button is threadedly coupled, and the quantity of the flexible threaded rod is four groups.

Preferably, the tool body is equipped with graduated scale, graduated scale close to the outer faces position of protective cover side Outer surface scale slot is installed.

Compared with prior art, the utility model has the advantages that：

1, different on two choke blocks by the No.1 choke block of setting and No. two choke blocks in the utility model The mesh of size allows student to be observed that the restriction effect of different size throttleng surface；

2, in the utility model, the length of flexible threaded rod is adjusted by the adjusting knob of setting to change educational aid Height so that the use of educational aid is not limited by landform；

3, in the utility model, the process image zoom that thermodynamics can be throttled by the convex mirror of setting allows students What can be more clear observes the process of thermodynamics throttling；

4, in the utility model, entire educational aid is simple, easy to operate, the effect that observation throttling process and height are adjusted It is more preferable relative to traditional approach.

Description of the drawings

Fig. 1 is that a kind of overall structure of College Physics thermodynamics throttling process teaching demonstration tool of the utility model is illustrated Figure；

Fig. 2 is that a kind of tool body inside of College Physics thermodynamics throttling process teaching demonstration tool of the utility model regards Figure；

Fig. 3 is a kind of No. two choke block parts of College Physics thermodynamics throttling process teaching demonstration tool of the utility model Enlarged drawing.

In figure：1, tool body；2, No.1 fixing groove；3, No.1 choke block；4, No. two fixing grooves；5, No. two choke blocks； 6, pressuring plate；7, it is pressurized handle；8, grip hole；9, protective cover；10, drainpipe；11, drain valve；12, oral siphon；13, enter water Valve；14, convex mirror；15, stretch threaded rod；16, threaded rod cylinder；17, adjusting knob；18, pedestal；19, windowpane；20, it connects Hinge.

Specific implementation mode

To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below In conjunction with specific implementation mode, the utility model is expanded on further.

As shown in Figs. 1-3, a kind of College Physics thermodynamics throttling process teaching demonstration tool, including tool body 1 with enter The outer faces of water pipe 12, tool body 1 are equipped with No.1 fixing groove 2, and the internal activity of No.1 fixing groove 2 is equipped with No.1 The both ends outer surface of choke block 3, No.1 choke block 3 is connected by the outer faces activity of No.1 fixing groove 2 and tool body 1 It connecing, the side of No.1 fixing groove 2 is equipped with No. two fixing grooves 4, and the internal activity of No. two fixing grooves 4 is equipped with No. two choke blocks 5, The inner upper of tool body 1 is equipped with pressuring plate 6, and the side of pressuring plate 6 is equipped with and is pressurized handle 7, outside the side of tool body 1 Surface is equipped with grip hole 8, and supercharging handle 7 is fixedly connected with pressuring plate 6 across grip hole 8, is equipped on the outside of the upper end of tool body 1 Protective cover 9, and another side external surface of tool body 1 is equipped with drainpipe 10, the upper end outer surface of drainpipe 10 is equipped with drain valve 11, oral siphon 12 is fixedly mounted on tool body 1 close to the side of grip hole 8, and the upper end outer surface of oral siphon 12 be equipped with into The leading exterior surface of water valve 13, tool body 1 is installed with convex mirror 14, and the lower end outer surface of tool body 1 is equipped with and stretches Contracting threaded rod 15, and the lower end outer surface of flexible threaded rod 15 is movably installed with threaded rod cylinder 16, outside the side of threaded rod cylinder 16 Surface is equipped with adjusting knob 17, and the lower end outside of threaded rod cylinder 16 is equipped with pedestal 18, and the lower end outer surface of protective cover 9, which is equipped with, to be connected Hinge 20 is connect, and the outer faces of protective cover 9 are installed with windowpane 19, the lower end of protective cover 9 passes through connects hinge 20 It is flexibly connected with the upper end of tool body 1.

The leading exterior surface of convex mirror 14 is equipped with screw with the upper end outer surface of pedestal 18, and the quantity of screw is eight groups, Every group of quantity is two, and convex mirror 14 is stably fixed on the leading exterior surface of tool body 1 by screw, also by pedestal 18 Firmly fix on the ground；The outer surface of protective cover 9 is equipped with seal washer, and seal washer is a kind of structure of rubber material Part, seal washer seal the educational aid, and the liquid avoided in tool spills；The outer surface peace of flexible threaded rod 15 Equipped with screw thread, and flexible threaded rod 15 is threadedly coupled by screw thread with adjusting knob 17, and the quantity for the threaded rod 15 that stretches is four groups, Flexible threaded rod 15 and adjusting knob 17 can be connected for screw thread, and adjustment knobs 17 are flexible to be adjusted by screw thread The height of threaded rod 15, tool body 1 are equipped with graduated scale close to the outer faces position of 9 side of protective cover, graduated scale Outer surface is equipped with scale slot, graduated scale and scale slot can be with more intuitive understanding to the position of throttling by students.

It should be noted that the utility model is a kind of College Physics thermodynamics throttling process teaching demonstration tool, pass through The water valve 13 that enters opened on oral siphon 12 does not allow fluid to enter in tool body 1, then pushes pressuring plate by being pressurized handle 7 6 push fluid to No.1 choke block 3 and No. two choke blocks 5, and the hole on No.1 choke block 3 and No. two choke blocks 5, size is not Together, the educational aid can be allowed to demonstrate the restriction effect when different throttleng surface sizes, while being combined with convex mirror 14, convex surface Mirror 14 can be by the Product management model of restriction effect, the process for observing throttling that the students at teaching scene can be allowed to be more clear, After physical thermodynamics throttling process is demonstrated, the drain valve 11 opened on drainpipe 10 can be by the fluid in educational aid Discharge, No.1 choke block 3 and No. two choke blocks 5 are mounted on tool body 1 by No.1 fixing groove 2 and No. two fixing grooves 4 respectively Interior, faculty can open protective cover 9 by No.1 choke block 3 and No. two installations of choke block 5 or dismounting, and protective cover 9 is also Can be dropped into educational aid to avoid sundries, faculty can by adjusting knob 17 come the height for the threaded rod 15 that stretches, Adjust the height of educational aid so that the student of each position can see the demonstration of throttling process clearly, allow the educational aid Using not limited by landform, the threaded rod 15 that stretches is mounted in threaded rod cylinder 16, and the pedestal 19 on rasp bar cylinder 16 allows the teaching work Tool can be stably fixed on ground, and connects hinge 20 connects protective cover 9 and tool body 1, more practical.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (5)

1. a kind of College Physics thermodynamics throttling process teaching demonstration tool, including tool body（1）With oral siphon（12）, special Sign is：The tool body（1）Outer faces be equipped with No.1 fixing groove（2）, and No.1 fixing groove（2）Internal activity No.1 choke block is installed（3）, No.1 choke block（3）Both ends outer surface pass through No.1 fixing groove（2）One end and tool master Body（1）Outer faces flexible connection, the No.1 fixing groove（2）Side be equipped with No. two fixing grooves（4）, and No. two fixations Slot（4）Internal activity No. two choke blocks are installed（5）, the tool body（1）Inner upper be equipped with pressuring plate（6）, and Pressuring plate（6）Side be equipped with supercharging handle（7）, the tool body（1）A side external surface be equipped with grip hole（8）, described It is pressurized handle（7）Across grip hole（8）With pressuring plate（6）It is fixedly connected, the tool body（1）Upper end on the outside of be equipped with protection Lid（9）, and tool body（1）Another side external surface be equipped with drainpipe（10）, the drainpipe（10）Upper end outer surface set There is drain valve（11）, the oral siphon（12）It is fixedly mounted on tool body（1）Close to grip hole（8）Side, and oral siphon （12）Upper end outer surface be equipped with into water valve（13）, the tool body（1）Leading exterior surface be installed with convex mirror （14）, and tool body（1）Lower end outer surface be equipped with flexible threaded rod（15）, and flexible threaded rod（15）Lower end outer surface It is movably installed with threaded rod cylinder（16）, the threaded rod cylinder（16）A side external surface be equipped with adjusting knob（17）, and threaded rod Cylinder（16）Lower end outside be equipped with pedestal（18）, the protective cover（9）Lower end outer surface be equipped with connects hinge（20）, and protect Lid（9）Outer faces be installed with windowpane（19）, the protective cover（9）Lower end pass through connects hinge（20）With work Has main body（1）Upper end flexible connection.

2. a kind of College Physics thermodynamics throttling process teaching demonstration tool according to claim 1, it is characterised in that：Institute State convex mirror（14）Leading exterior surface and pedestal（18）Upper end outer surface screw is installed, the quantity of screw is eight groups, often The quantity of group is two.

3. a kind of College Physics thermodynamics throttling process teaching demonstration tool according to claim 1, it is characterised in that：Institute State protective cover（9）Outer surface seal washer is installed, seal washer gasket is a kind of component of rubber material.

4. a kind of College Physics thermodynamics throttling process teaching demonstration tool according to claim 1, it is characterised in that：Institute State flexible threaded rod（15）Outer surface screw thread is installed, and flexible threaded rod（15）Pass through screw thread and adjusting knob（17）Screw thread Connection, the flexible threaded rod（15）Quantity be four groups.

5. a kind of College Physics thermodynamics throttling process teaching demonstration tool according to claim 1, it is characterised in that：Institute State tool body（1）Close to protective cover（9）The outer faces position of side is equipped with graduated scale, the outer surface installation of graduated scale There is scale slot.