CN113291860A

CN113291860A - Feed mechanism is used in sesame oil production

Info

Publication number: CN113291860A
Application number: CN202110547029.1A
Authority: CN
Inventors: 任长博; 孟维国; 孟祥峰; 樊平; 王敏; 李红梅
Original assignee: SHANDONG SHILIXIANG SESAME PRODUCTS CO Ltd
Current assignee: SHANDONG SHILIXIANG SESAME PRODUCTS CO Ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-08-24

Abstract

The invention discloses a feeding mechanism for sesame oil production, which comprises a base, wherein a telescopic rod is fixedly arranged on the upper surface of the base, a fixed plate is fixedly arranged at the upper end of the telescopic rod, a supporting rod is fixedly arranged on the upper surface of the fixed plate, a screening device is fixedly arranged above the fixed plate, a storage bin is fixedly arranged above the screening device, a motor is fixedly arranged in the storage bin, a discharging device is fixedly embedded into the lower surface of the storage bin, a second rotating shaft is movably arranged in the discharging device, and the storage bin and the screening device are fixedly connected with the fixed plate through the supporting rod. According to the feeding mechanism for sesame oil production, manual sesame conveying can be avoided, the height of the feeding device can be adjusted, impurities in sesame can be automatically filtered during feeding, the filter screen can be conveniently replaced, and the feeding speed of the sesame can be automatically adjusted while the sesame is prevented from being blocked in the feeding mechanism.

Description

Feed mechanism is used in sesame oil production

Technical Field

The invention relates to the field of feeding mechanisms, in particular to a feeding mechanism for producing sesame oil.

Background

Sesame oil, also called sesame oil and sesame oil, is a traditional Chinese seasoning vegetable oil, is grease squeezed from sesame, has a strong sesame-frying fragrance, is pure in flavor and resistant to aftertaste, is an essential seasoning product in daily life, can be called as a top oil product, has a health-care function recorded in Shennong Bencao Jing and Ben Cao gang, has a strong fragrance, can promote appetite and help digestion, is rich in unsaturated fatty acids such as linoleic acid, oleic acid and linolenic acid, is easy to decompose, absorb and utilize by a human body to promote the metabolism of cholesterol and eliminate deposits on arterial blood vessel walls, has a certain effect on preventing and treating cardiovascular diseases, has excellent antioxidation, can protect liver and heart and delay aging, and has a good anticancer function, the sesame oil also contains abundant vitamin E, and has effects of promoting cell division and delaying aging. The sesame oil also has the effects of relaxing bowel, moistening throat and relieving sore throat;

there is certain drawback when using in current loading mechanism for sesame oil production, during the use, needs manual operation transport sesame, and when long-time during operation, manual operation efficiency can reduce, need sieve out the impurity in the sesame before the sesame falls into the oil press in addition, leads to the production efficiency of sesame oil to reduce, and loading mechanism's height can not be adjusted in addition, and blocks up easily when the material loading, can not adjust the speed of material loading, for this reason, we propose a loading mechanism for sesame oil production.

Disclosure of Invention

The invention mainly aims to provide a feeding mechanism for producing sesame oil, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a sesame oil production is with feed mechanism, includes the base, fixed surface installs the telescopic link on the base, telescopic link upper end fixed mounting has the fixed plate, fixed surface installs the bracing piece on the fixed plate, fixed plate top fixed mounting has the sieving mechanism, sieving mechanism top fixed mounting has storage bin, the inside fixed mounting in storage bin has the motor, storage bin lower fixed surface imbeds and installs unloader, the inside movable mounting of unloader has No. two pivots, storage bin with the sieving mechanism all passes through the bracing piece with fixed plate fixed connection.

Preferably, the access door is installed in the embedding of warehouse surperficial activity, the access door surface is close one side department fixed mounting and has a hinge No. one, the access door passes through a hinge with warehouse swing joint, the warehouse with the equal fixed mounting in access door surface has the fixed bolster, the inside movable mounting of fixed bolster has the fixed pin, the fixed pin upper surface is close one end department and has seted up spacing hole, the inside activity embedding of spacing hole installs the spacer pin, the spacer pin passes through spacing hole with fixed pin swing joint.

Preferably, the inside fixed surface in storage storehouse installs fixed stabilizer blade, fixed stabilizer blade with motor fixed connection, motor lower extreme fixed mounting has the pivot No. one, pivot lower extreme fixed mounting has stirring impeller, motor fixed mounting all around has motor housing, motor housing with fixed stabilizer blade fixed connection.

Preferably, the closure plate is installed in unloader front surface activity embedding, the inside both sides surface of unloader is located the equal fixed mounting in closure plate both sides and has the slide rail, the closure plate passes through the slide rail with unloader swing joint, the unloader front surface is close lower extreme department fixed mounting and has adjustable speed motor, unloader side surface is close lower extreme department and has seted up the feed opening, the quantity of feed opening is three.

Preferably, the inside pivot fixed surface that is located No. two of unloader has forward rotating vane, No. two pivot surfaces with forward rotating vane symmetrical position department fixed mounting has reverse rotating vane, No. two pivot one end run through the unloader front surface with adjustable speed motor fixed connection, the inside back fixed surface embedding of unloader installs the bearing, No. two pivots with bearing inner circle fixed connection, No. two pivots are passed through the bearing with unloader swing joint.

Preferably, the inside activity embedding of sieving mechanism installs the filter screen No. one, the inside filter screen below activity embedding that is located of sieving mechanism installs the filter screen No. two, the surface is located the equal fixed embedding in a filter screen and No. two filter screen below and installs the stopper around the sieving mechanism, a filter screen with No. two filter screens all with the sieving mechanism closely laminates.

Preferably, sieving mechanism one end fixed mounting has the discharge gate, sieving mechanism one end is located discharge gate upper surface fixed mounting and has the dust storage groove, the inboard lower surface of discharge gate with No. two filter screen upper surfaces keep level, the inside lower surface of dust storage groove with a filter screen upper surface keeps level, the apron is installed in the embedding of dust storage groove upper surface activity, the apron upper surface is close one side department fixed mounting and has No. two hinges, the apron passes through No. two hinges with dust storage groove swing joint, the inside front and back surface of dust storage groove is located the equal fixed mounting in apron below and has the supporting shoe.

Preferably, the sieving mechanism lower surface is close other end department fixed embedding and is installed the dust storage case, the movable embedding of dust storage case front surface is installed and is removed the dust storage box, remove the dust storage box front surface fixed mounting and have the handle, it passes through to remove the dust storage box the dust storage case with sieving mechanism swing joint, the fixed surface installs vibrating motor before the sieving mechanism.

Preferably, the lower surface of the base is fixedly provided with universal wheels close to four corners, and the number of the telescopic rods is four.

Compared with the prior art, the invention has the following beneficial effects:

in the invention, the whole feeding mechanism is pushed, sesame is poured into the storage bin through the moving position of the universal wheel, the height of the telescopic rod is adjusted according to the height of sesame oil production equipment, the discharge port is higher than the sesame oil production equipment, then the universal wheel is fixed through the locking structure of the universal wheel, so that the whole feeding mechanism is fixed, the blocking plate is pulled outwards and moves outwards under the action of the slide rail, the sesame passes through the fixed supporting legs and is discharged from the discharge port through the discharging device, the motor shell prevents the sesame and dust from entering the motor to cause motor damage, the motor drives the stirring impeller to rotate through the first rotating shaft to prevent the sesame from being blocked at the upper end of the discharging device, the speed-adjustable motor drives the second rotating shaft to rotate, the forward rotating blades and the reverse rotating blades simultaneously to disperse the sesame and discharge the sesame from the three discharge ports respectively, and the discharging speed of the sesame is accelerated, prevent sesame from blocking at the lower end of the blanking device, the sesame is discharged to the surface of the first filter screen from the feed opening, the vibration motor operates to enable the screening device to vibrate integrally, impurities larger than the volume of the sesame are intercepted by the first filter screen, then the sesame moves to the interior of the dust storage groove under the action of the vibration motor, the sesame and the impurities smaller than the volume of the sesame fall to the upper surface of the second filter screen, then the sesame moves on the second filter screen under the action of the vibration motor, is discharged from the discharge opening and then enters sesame oil production equipment, particles smaller than the volume of the sesame pass through holes of the second filter screen and fall to the lower surface of the interior of the screening device, the sesame moves to the dust storage box under the action of the vibration motor, finally the sesame falls to the interior of the movable dust storage box, the limiting block blocks the first filter screen and the second filter screen from moving downwards and fixing the first filter screen and the second filter screen, after feeding is finished, the blocking plate is plugged into the slide rail to block the blanking device, the prevention sesame continues down to remove, open the apron under the effect of No. two hinges, will store up the inside impurity clearance of dirt groove and come out, will remove through the pulling handle and store up the dirt box and shift out, clear up its inside impurity out, so that next time use, manual screening has been replaced, and artifical transport material loading, reduce working strength, accelerate work efficiency, when clearance and maintenance warehouse are inside, take out the spacer pin from spacing hole is inside, then shift out the fixed pin from the fixed bolster is inside, thereby open the access door, spacer pin and fixed pin are dual fixed, prevent that the access door from opening automatically under the pressure, improve the structure and the stability of access door.

Drawings

FIG. 1 is a schematic view of the overall structure of a loading mechanism for producing sesame oil according to the present invention;

FIG. 2 is a sectional view of a storage bin, a discharging device and a screening device of the feeding mechanism for sesame oil production according to the present invention;

FIG. 3 is a side cut-away view of a part of a blanking device of the feeding mechanism for sesame oil production of the present invention;

FIG. 4 is an enlarged view of the part A in FIG. 1 of a loading mechanism for sesame oil production according to the present invention;

FIG. 5 is an enlarged view of the loading mechanism for sesame oil production in FIG. 1, at B;

FIG. 6 is an enlarged view of the loading mechanism for sesame oil production in FIG. 2, at C;

fig. 7 is an enlarged view of the feeding mechanism for sesame oil production in fig. 2 at D.

In the figure: 1. a base; 101. a universal wheel; 102. a telescopic rod; 103. a fixing plate; 104. a support bar; 2. a screening device; 201. vibrating a motor; 202. a discharge port; 203. a dust storage tank; 204. a first filter screen; 205. a second filter screen; 206. a limiting block; 3. storing in a warehouse; 301. an access door; 302. a first hinge; 303. fixing a bracket; 304. a fixing pin; 305. a spacing pin; 306. a limiting hole; 4. a blanking device; 401. a feeding port; 402. a blocking plate; 403. a speed adjustable motor; 404. a bearing; 405. a slide rail; 5. a motor; 501. a fixed leg; 502. a motor housing; 503. agitating the impeller; 504. a first rotating shaft; 6. a dust storage box; 601. moving the dust storage box; 602. a handle; 7. a second rotating shaft; 701. a forward rotating blade; 702. a counter-rotating blade; 8. a cover plate; 801. a support block; 802. and a second hinge.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-7, a feeding mechanism for sesame oil production comprises a base 1, wherein an expansion link 102 is fixedly mounted on the upper surface of the base 1, a fixing plate 103 is fixedly mounted at the upper end of the expansion link 102, a support rod 104 is fixedly mounted on the upper surface of the fixing plate 103, a screening device 2 is fixedly mounted above the fixing plate 103, a storage bin 3 is fixedly mounted above the screening device 2, a motor 5 is fixedly mounted inside the storage bin 3, a blanking device 4 is fixedly embedded into the lower surface of the storage bin 3, a second rotating shaft 7 is movably mounted inside the blanking device 4, and the storage bin 3 and the screening device 2 are both fixedly connected with the fixing plate 103 through the support rod 104;

an access door 301 is movably embedded in the surface of the storage bin 3, a first hinge 302 is fixedly installed on one side, close to the surface of the access door 301, the access door 301 is movably connected with the storage bin 3 through the first hinge 302, fixed supports 303 are fixedly installed on the surfaces of the storage bin 3 and the access door 301, a fixed pin 304 is movably installed in each of the fixed supports 303, a limiting hole 306 is formed in one end, close to the upper surface of the fixed pin 304, of the fixed pin 306, a limiting pin 305 is movably embedded in each of the limiting holes 306, the limiting pin 305 is movably connected with the fixed pin 304 through the limiting hole 306, the access door 301 is prevented from being automatically opened under the action of pressure, and the structure and the stability of the access door 301 are improved; the lower surface in the storage bin 3 is fixedly provided with a fixed supporting leg 501, the fixed supporting leg 501 is fixedly connected with the motor 5, the lower end of the motor 5 is fixedly provided with a first rotating shaft 504, the lower end of the first rotating shaft 504 is fixedly provided with a stirring impeller 503, the periphery of the motor 5 is fixedly provided with a motor shell 502, and the motor shell 502 is fixedly connected with the fixed supporting leg 501, so that sesame and dust are prevented from entering the motor 5 to damage the motor 5, and sesame is prevented from being blocked at the upper end of the blanking device 4; the front surface of the blanking device 4 is movably embedded with a blocking plate 402, the surfaces of two sides in the blanking device 4 are positioned at two sides of the blocking plate 402 and are fixedly provided with slide rails 405, the blocking plate 402 is movably connected with the blanking device 4 through the slide rails 405, the front surface of the blanking device 4 near the lower end is fixedly provided with an adjustable speed motor 403, the surface of one side of the blanking device 4 near the lower end is provided with a blanking port 401, and the number of the blanking ports 401 is three; a forward rotating blade 701 is fixedly arranged on the surface of a second rotating shaft 7 in the blanking device 4, a reverse rotating blade 702 is fixedly arranged at the position, which is symmetrical to the forward rotating blade 701, on the surface of the second rotating shaft 7, one end of the second rotating shaft 7 penetrates through the front surface of the blanking device 4 and is fixedly connected with a speed-adjustable motor 403, a bearing 404 is fixedly embedded in the rear surface of the interior of the blanking device 4, the second rotating shaft 7 is fixedly connected with the inner ring of the bearing 404, and the second rotating shaft 7 is movably connected with the blanking device 4 through the bearing 404 to disperse sesame and discharge the sesame from the three blanking ports 401 respectively, so that the blanking speed of the sesame is increased, and the sesame is prevented from being blocked at the; a first filter screen 204 is movably embedded in the screening device 2, a second filter screen 205 is movably embedded in the screening device 2 below the first filter screen 204, limiting blocks 206 are fixedly embedded below the first filter screen 204 and the second filter screen 205 on the front surface and the rear surface of the screening device 2, and the first filter screen 204 and the second filter screen 205 are tightly attached to the screening device 2; a discharge port 202 is fixedly arranged at one end of the screening device 2, a dust storage tank 203 is fixedly arranged on the upper surface of the discharge port 202 at one end of the screening device 2, the lower surface of the inner side of the discharge port 202 is flush with the upper surface of a second filter screen 205, the lower surface of the inner part of the dust storage tank 203 is flush with the upper surface of a first filter screen 204, a cover plate 8 is movably embedded into the upper surface of the dust storage tank 203, a second hinge 802 is fixedly arranged at one side, close to the upper surface of the cover plate 8, the cover plate 8 is movably connected with the dust storage tank 203 through the second hinge 802, and supporting blocks 801 are fixedly arranged on the front and rear surfaces of the inner part of the dust storage tank 203 below the cover plate 8; a dust storage box 6 is fixedly embedded and mounted at the other end of the lower surface of the screening device 2 close to the other end, a movable dust storage box 601 is movably embedded and mounted on the front surface of the dust storage box 6, a handle 602 is fixedly mounted on the front surface of the movable dust storage box 601, the movable dust storage box 601 is movably connected with the screening device 2 through the dust storage box 6, and a vibration motor 201 is fixedly mounted on the front surface of the screening device 2; the lower surface of the base 1 is fixedly provided with universal wheels 101 near four corners, and the number of the telescopic rods 102 is four.

The invention is to be noted that the invention is a feeding mechanism for sesame oil production, when in use, the whole feeding mechanism is pushed, sesame is poured into the storage bin 3 through the moving position of the universal wheel 101, the height of the telescopic rod 102 is adjusted according to the height of sesame oil production equipment, the discharge port 202 is higher than the sesame oil production equipment, then the universal wheel 101 is fixed through the locking structure of the universal wheel 101, so that the feeding mechanism is integrally fixed, and the blocking plate 402 is pulled outwards; the blocking plate 402 moves outwards under the action of the sliding rail 405, sesame passes through the fixed supporting legs 501 and is discharged from the discharging opening 401 through the discharging device 4, the motor shell 502 prevents sesame and dust from entering the motor 5 to cause damage to the motor 5, the motor 5 drives the stirring impeller 503 to rotate through the first rotating shaft 504 to prevent the sesame from being blocked at the upper end of the discharging device 4, the speed-adjustable motor 403 drives the second rotating shaft 7 to rotate to enable the forward rotating blade 701 and the reverse rotating blade 702 to rotate simultaneously to disperse the sesame and discharge the sesame from the three discharging openings 401 respectively, the discharging speed of the sesame is accelerated to prevent the sesame from being blocked at the lower end of the discharging device 4, the sesame is discharged to the surface of the first filter screen 204 from the discharging opening 401, the vibration motor 201 operates to enable the screening device 2 to vibrate integrally, impurities larger than the volume of the sesame are blocked by the first filter screen 204 and then move to the inside the dust storage tank 203 under the action of the vibration motor 201, sesame and impurities smaller than the volume of the sesame fall onto the upper surface of a second filter screen 205, then under the action of a vibration motor 201, the sesame moves on the second filter screen 205, is discharged from a discharge port 202, then enters sesame oil production equipment, particles smaller than the sesame in volume pass through holes of the second filter screen 205, fall onto the lower surface inside a screening device 2, move into a dust storage box 6 under the action of the vibration motor 201, finally fall into a movable dust storage box 601, a limiting block 206 prevents the first filter screen 204 and the second filter screen 205 from moving downwards and fixes the first filter screen and the second filter screen 205, after feeding is finished, a blocking plate 402 is plugged into a sliding rail 405 to block a blanking device 4 and prevent the sesame from moving downwards continuously, a cover plate 8 is opened under the action of a second hinge 802 to clear impurities inside a dust storage tank 203, the movable dust storage box 601 is moved out by pulling a handle 602 to clear the impurities inside the movable dust storage box 601 out, so that next use, replaced artifical screening, and artifical transport material loading, reduce working strength, accelerate work efficiency, when clearance and maintenance warehouse 3 are inside, take out spacer pin 305 from spacing hole 306 is inside, then shift out fixed pin 304 from fixed bolster 303 is inside, thereby open access door 301, spacer pin 305 and fixed pin 304 are dual fixed, prevent that access door 301 from opening automatically under the pressure effect, improve access door 301's structure and stability.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a feed mechanism is used in sesame oil production which characterized in that: including base (1), fixed surface installs telescopic link (102) on base (1), telescopic link (102) upper end fixed mounting has fixed plate (103), fixed surface installs bracing piece (104) on fixed plate (103), fixed plate (103) top fixed mounting has sieving mechanism (2), sieving mechanism (2) top fixed mounting has storage bin (3), storage bin (3) inside fixed mounting has motor (5), unloader (4) are installed in storage bin (3) lower fixed surface embedding, unloader (4) inside movable mounting has No. two pivot (7), storage bin (3) with sieving mechanism (2) all pass through bracing piece (104) with fixed plate (103) fixed connection.

2. The feeding mechanism for producing sesame oil as claimed in claim 1, wherein: access door (301) is installed in storehouse (3) surface activity embedding, access door (301) surface is close one side department fixed mounting and has a hinge (302), access door (301) passes through hinge (302) with storehouse (3) swing joint, storehouse (3) with access door (301) surface equal fixed mounting has fixed bolster (303), fixed bolster (303) inside movable mounting has fixed pin (304), fixed pin (304) upper surface is close one end department and has seted up spacing hole (306), spacing hole (306) inside activity embedding is installed spacer pin (305), spacer pin (305) pass through spacing hole (306) with fixed pin (304) swing joint.

3. The feeding mechanism for producing sesame oil as claimed in claim 1, wherein: the inside lower surface fixed mounting in storage storehouse (3) has fixed stabilizer blade (501), fixed stabilizer blade (501) with motor (5) fixed connection, motor (5) lower extreme fixed mounting has pivot (504) No. one, pivot (504) lower extreme fixed mounting has stirring impeller (503), motor (5) fixed mounting all around has motor housing (502), motor housing (502) with fixed stabilizer blade (501) fixed connection.

4. The feeding mechanism for producing sesame oil as claimed in claim 1, wherein: blanking plate (402) is installed in the embedding of unloader (4) front surface activity, the inside both sides surface of blanking device (4) is located the equal fixed mounting in blanking plate (402) both sides has slide rail (405), blanking plate (402) passes through slide rail (405) with unloader (4) swing joint, but blanking device (4) front surface is close lower extreme department fixed mounting has buncher (403), blanking device (4) side surface is close lower extreme department and has seted up feed opening (401), the quantity of feed opening (401) is three.

5. The feeding mechanism for producing sesame oil as claimed in claim 4, wherein: unloader (4) inside be located No. two pivot (7) fixed surface installs forward rotating vane (701), No. two pivot (7) surfaces with forward rotating vane (701) symmetrical position department fixed mounting has reverse rotating vane (702), No. two pivot (7) one end is run through unloader (4) front surface with adjustable speed motor (403) fixed connection, bearing (404) are installed in the inside back fixed surface embedding of unloader (4), No. two pivot (7) with bearing (404) inner circle fixed connection, No. two pivot (7) pass through bearing (404) with unloader (4) swing joint.

6. The feeding mechanism for producing sesame oil as claimed in claim 1, wherein: filter screen (204) is installed to inside activity embedding of sieving mechanism (2), sieving mechanism (2) inside is located a filter screen (204) below activity embedding and installs No. two filter screens (205), surface is located a filter screen (204) and No. two filter screens (205) below equal fixed embedding around sieving mechanism (2) and installs stopper (206), a filter screen (204) with No. two filter screens (205) all with sieving mechanism (2) closely laminate.

7. The feeding mechanism for producing sesame oil as claimed in claim 6, wherein: sieving mechanism (2) one end fixed mounting has discharge gate (202), sieving mechanism (2) one end is located discharge gate (202) upper surface fixed mounting and has dust storage tank (203), discharge gate (202) inboard lower surface with No. two filter screens (205) upper surface keep level, the inside lower surface of dust storage tank (203) with a filter screen (204) upper surface keep level, dust storage tank (203) upper surface activity embedding installs apron (8), apron (8) upper surface is close one side department fixed mounting and has No. two hinges (802), apron (8) pass through No. two hinges (802) with dust storage tank (203) swing joint, the inside front and back surface of dust storage tank (203) is located apron (8) the equal fixed mounting in below has supporting shoe (801).

8. The feeding mechanism for producing sesame oil as claimed in claim 1, wherein: sieving mechanism (2) lower surface is close other end department fixed embedding and installs dust storage box (6), dust storage box (6) front surface activity embedding is installed and is removed dust storage box (601), remove dust storage box (601) front surface fixed mounting have handle (602), remove dust storage box (601) and pass through dust storage box (6) with sieving mechanism (2) swing joint, fixed surface installs vibrating motor (201) before sieving mechanism (2).

9. The feeding mechanism for producing sesame oil as claimed in claim 1, wherein: the lower surface of the base (1) is close to four corners and is fixedly provided with universal wheels (101), and the number of the telescopic rods (102) is four.