CN110675781B

CN110675781B - Quick inflation equipment is used in gas mould production

Info

Publication number: CN110675781B
Application number: CN201911127558.5A
Authority: CN
Inventors: 丁永红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2021-09-24
Anticipated expiration: 2039-11-18
Also published as: CN110675781A

Abstract

The invention discloses a quick inflation device for gas mold production, which comprises a fixed plate, wherein fixed columns are fixedly arranged on two sides of the fixed plate, first sliding grooves are formed in the two sides, close to each other, of the two fixed columns, first sliding blocks are slidably arranged in the two first sliding grooves, one ends, close to each other, of the two first sliding blocks extend to the outer sides of the corresponding fixed columns respectively and are fixedly provided with a same sliding plate, a fixed hole is formed in the fixed plate, a push rod motor is fixedly arranged at the top of the fixed plate, an output shaft of the push rod motor penetrates through the fixed hole and extends to the lower side of the fixed plate and is fixedly connected with the top of the sliding plate, and two connecting holes are formed in the sliding plate. The air mould flattening device is simple in structure and convenient to operate, can quickly and conveniently flatten and flatten the air mould, fixes the air mould after flattening, increases the air inflation speed of the air mould, improves the working efficiency, and meets the requirements of people.

Description

Quick inflation equipment is used in gas mould production

Technical Field

The invention relates to the field of inflation equipment, in particular to quick inflation equipment for gas mold production.

Background

The air model is also called as an inflatable product, is a brand-new advertising medium which appears in China in the middle of the nineties of the twentieth century, has the biggest characteristic of building, has irreplaceable advertising propaganda effect in the process of establishing brands and promoting sales, is easy to form a heavy and hot activity scene, is out of the market, enlarges the infinite imagination of people to products, arouses the curiosity of people, teases the shopping desire of people, brings strong visual impact and relaxed and pleasant atmosphere to people by showing vivid and vivid shapes, deepens the understanding of people to the images and brands of the products, and plays a better propaganda effect.

When the rapid inflation equipment for gas mold production is used for inflation production, the gas mold needs to be manually compressed and guided on the surface of the arc-shaped guide groove, the danger coefficient and the labor intensity are high, the inflation speed depends on the speed of manual operation, the production efficiency is relatively low, the long-term development of enterprises is not facilitated, and the requirements of people cannot be met;

therefore, it is necessary to develop a rapid inflation apparatus for gas mold production, which facilitates flattening and fixing the gas mold, to solve the above problems.

Disclosure of Invention

In order to overcome the defect that the angle of the humidifier is difficult to adjust, the technical problem to be solved is as follows: the rapid inflation equipment is used for producing the gas mould, and is convenient for carrying the heavy blocks and capable of ensuring that the placement positions of the heavy blocks are accurate.

The technical scheme of the invention is as follows: a quick inflation device for gas mold production comprises a fixed plate, wherein fixed columns are fixedly mounted on two sides of the fixed plate, first sliding grooves are formed in one sides, close to each other, of the two fixed columns, first sliding blocks are slidably mounted in the two first sliding grooves, one ends, close to each other, of the two first sliding blocks extend to the outer sides of the corresponding fixed columns respectively and are fixedly provided with a same sliding plate, a fixed hole is formed in the fixed plate, a push rod motor is fixedly mounted at the top of the fixed plate, an output shaft of the push rod motor penetrates through the fixed hole to extend to the lower side of the fixed plate and is fixedly connected with the top of the sliding plate, two connecting holes are formed in the sliding plate, connecting rods are slidably mounted in the two connecting holes respectively, first holes are formed in the two connecting rods, first rods are slidably mounted in the two first holes respectively, and two ends of each first rod are fixedly connected with the inner wall of one side of the corresponding connecting hole respectively, the side, far away from each other, of each connecting rod is fixedly provided with a reset spring sleeved outside the first rod, the end, far away from each other, of each reset spring is fixedly connected with the inner wall of one side of the corresponding connecting hole, the sliding plate is provided with two second holes, the second rods are slidably mounted in the two second holes, the side, close to each other, of each fixing column is fixedly provided with a fixing block, the top ends of the two second rods extend to the upper part of the sliding plate and are fixedly connected with the corresponding fixing blocks, the bottom ends of the two second rods extend to the lower part of the sliding plate and are fixedly provided with mounting blocks, the side, close to each other, of each mounting block is fixedly provided with a placing plate, the placing plate is provided with a placing opening, the bottom ends of the two connecting rods extend to the lower part of the placing plate through the placing opening and are fixedly provided with a spreading plate, and the bottoms of the two spreading plates are fixedly provided with bristles, the bottom fixed mounting of sliding plate has the stopper, the bottom fixed mounting of stopper has the pressboard, all rotate the dwang of installing the slope symmetry setting on two second poles, the one end that two dwangs were kept away from each other all rotates and installs the rotation seat, and two one ends that rotate the seat and keep away from each other respectively with one side fixed connection that two corresponding second poles are close to each other, the equal fixed mounting in one side that two fixed columns are close to each other has the embedded board, the embedded groove has all been seted up to the one end that two embedded boards are close to each other, equal slidable mounting has the embedding pole in two embedded grooves, the one end that two embedding poles are close to each other extends to the outside of corresponding embedded board respectively and with one side fixed connection that two corresponding stand flat boards and keep away from each other.

In one embodiment, the same transverse plate is fixedly mounted on one side of each of the two fixed columns, the moving grooves are formed in the top of the transverse plate, the moving plates are slidably mounted in the two moving grooves, the first grooves are formed in the sides, close to each other, of the two moving plates, the first plates are slidably mounted in the two first grooves, the first magnets are fixedly mounted at the bottoms of the two first plates, the second magnets are fixedly mounted on one sides, close to each other, of the two moving plates, and the two second magnets are respectively adsorbed to the corresponding first magnets.

In one of the embodiments, the risers are fixedly mounted at the tops of the two first plates, the sliding rods are slidably mounted on the two risers, the clamping grooves are formed in one sides, close to each other, of the two movable plates, the one ends, far away from each other, of the two sliding rods are clamped with the corresponding clamping grooves respectively, the pull rods are fixedly mounted at the ends, close to each other, of the two sliding rods, the limiting springs are fixedly mounted on one sides, close to each other, of the two pull rods, the limiting springs are sleeved on the outer sides of the sliding rods, one ends, far away from each other, of the two limiting springs are fixedly connected with one sides, close to each other, of the two corresponding risers respectively, the third holes are formed in the two first plates, the third rods are slidably mounted in the two third holes, and the top ends and the bottom ends of the third rods are fixedly connected with the top inner walls and the bottom inner walls of the corresponding first grooves respectively.

In one embodiment, the inner walls of the bottoms of the two moving grooves are respectively provided with a second sliding groove, the bottoms of the two moving plates are respectively fixedly provided with a second sliding block, and the two second sliding blocks are respectively in sliding connection with the corresponding second sliding grooves.

In one embodiment, the two second sliding blocks are respectively provided with a fourth hole, a fourth rod is slidably mounted in each fourth hole, and two ends of each fourth rod are fixedly connected with the inner wall of one side of the corresponding second sliding groove.

In one embodiment, the number of the clamping grooves is multiple, and the clamping grooves are vertically distributed on the moving plate at equal intervals.

In one embodiment, the top inner wall and the bottom inner wall of the embedded groove are provided with third sliding grooves.

In one embodiment, the top and the bottom of the embedding rod are fixedly provided with third sliding blocks, and the two third sliding blocks are respectively connected with the corresponding third sliding grooves in a sliding manner.

A quick inflation device for gas mold production:

place the diaphragm with the gas mould earlier on, then start the push rod motor, the push rod motor is controlled by control switch, the push rod motor is supplied power by the commercial power, the output shaft of push rod motor drives the sliding plate and moves, the sliding plate drives two connecting rods and moves, two connecting rods drive two dwangs and move, because two rotation seats are fixed, so two rotation seats drive two dwangs and rotate, two dwangs drive two connecting rods and move, two connecting rod compression two spacing springs, two spacing spring energy-absorbing, simultaneously, two connecting rods drive two spreading plates and move, two spreading plates drive a plurality of brush hairs and move, a plurality of brush hairs are shakeout the gas mould.

Simultaneously, the sliding plate drives the limiting block to move, the limiting block drives the pressing plate to move, the pressing plate flattens the air mould, then the two pull rods are pulled firstly, the two pull rods stretch the two limiting springs, the two limiting springs absorb energy, meanwhile, the two pull rods drive the two sliding rods to move, the two sliding rods are moved out of the clamping groove, then the two movable plates are moved, and the two movable plates drive the two second sliding blocks to move.

When two movable plates moved suitable position, then removed two movable plates, two movable plates drive two first magnets and remove, and two first magnets are fixed the gas mould, when accomplishing the gas mould is fixed, then loosen the pull rod, under the spring resilience effort through spacing spring, make the slide bar card go into in the draw-in groove, fix first board.

The invention has the beneficial effects that: the invention is characterized in that an air mould is placed on a transverse plate firstly, then a push rod motor is started, the push rod motor is controlled by a control switch, the push rod motor is powered by commercial power, an output shaft of the push rod motor drives a sliding plate to move, the sliding plate drives two connecting rods to move, the two connecting rods drive two rotating rods to move, the two rotating seats are fixed, so the two rotating seats drive the two rotating rods to rotate, the two rotating rods drive the two connecting rods to move, the two connecting rods compress two limiting springs, the two limiting springs absorb energy, meanwhile, the two connecting rods drive two flattening plates to move, the two flattening plates drive a plurality of bristles to move, the plurality of bristles flatten the air mould, meanwhile, the sliding plate drives a limiting block to move, the limiting block drives a flattening plate to move, and the flattening plate flattens the air mould, then pulling the two pull rods, stretching the two limit springs, absorbing energy by the two limit springs, driving the two slide rods to move by the two pull rods so as to move the two slide rods out of the clamping grooves, then moving the two movable plates, driving the two second sliders to move by the two movable plates, when the two movable plates move to proper positions, then moving the two movable plates, driving the two first magnets to move by the two movable plates, fixing the air mold by the two first magnets and the two first magnets, when the air mold is fixed, loosening the pull rods, clamping the slide rods into the clamping grooves under the spring resilience action force of the limit springs, and fixing the first plates. The working efficiency is improved, so that the requirements of people are met.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is an enlarged schematic view of part a of the present invention.

Fig. 3 is an enlarged schematic view of part B of the present invention.

Fig. 4 is an enlarged schematic view of part C of the present invention.

FIG. 5 is an enlarged view of the portion D of the present invention.

In the reference symbols: 1 … fixed plate, 2 … fixed column, 3 … first sliding slot, 4 … first sliding block, 5 … sliding plate, 6 … fixed hole, 7 … push rod motor, 8 … connecting hole, 9 … connecting rod, 10 … first hole, 11 … first rod, 12 … return spring, 13 … second hole, 14 … second rod, 15 … fixed block, 16 … mounting block, 17 … placing plate, 18 … placing opening, 19 … flattening plate, 20 … brush hair, 21 … stopper, 22 … pressing plate, 23 … rotating rod, 24 … rotating seat, 25 … embedding plate, 26 … embedding slot, 27 … embedding rod, 28 … moving slot, 29 … moving plate, 30 … first slot, 31 … first plate, 32 … first magnet, 33 … second magnet, 34 …, 3635 rod, … sliding slot, 3637, … sliding slot, … third hole 3639 third connecting rod, 3641 third hole connecting rod, … connecting rod.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

A quick inflation device for gas mold production is disclosed, as shown in figure 1-2, comprising a fixed plate 1, fixed columns 2 are fixedly mounted on both sides of the fixed plate 1, first chutes 3 are formed on the mutually adjacent sides of the two fixed columns 2, first sliding blocks 4 are slidably mounted in the two first chutes 3, the mutually adjacent ends of the two first sliding blocks 4 extend to the outer sides of the corresponding fixed columns 2 respectively and are fixedly provided with a same sliding plate 5, a fixed hole 6 is formed on the fixed plate 1, a push rod motor 7 is fixedly mounted on the top of the fixed plate 1, an output shaft of the push rod motor 7 extends to the lower side of the fixed plate 1 through the fixed hole 6 and is fixedly connected with the top of the sliding plate 5, two connecting holes 8 are formed on the sliding plate 5, connecting rods 9 are slidably mounted in the two connecting holes 8, first holes 10 are formed on the two connecting rods 9, first rods 11 are slidably mounted in the two first holes 10, two ends of a first rod 11 are respectively fixedly connected with the inner wall of one side of the corresponding connecting hole 8, one side of two connecting rods 9 far away from each other is fixedly provided with a return spring 12 sleeved outside the first rod 11, one end of two return springs 12 far away from each other is respectively fixedly connected with the inner wall of one side of the corresponding connecting hole 8, the sliding plate 5 is provided with two second holes 13, the second rods 14 are respectively and slidably mounted in the two second holes 13, one side of two fixed columns 2 near each other is fixedly provided with a fixed block 15, the top ends of the two second rods 14 extend to the upper side of the sliding plate 5 and are fixedly connected with the corresponding fixed block 15, the bottom ends of the two second rods 14 extend to the lower side of the sliding plate 5 and are fixedly provided with mounting blocks 16, one side of two mounting blocks 16 near each other is fixedly provided with a placing plate 17, and the placing plate 17 is provided with a placing opening 18, and the bottom of two connecting rods 9 all runs through place mouthful 18 and extend to the below of placing board 17 and fixed mounting has the board 19 of spreading out on a flat basis, the equal fixed mounting in bottom of two board 19 of spreading out has brush hair 20, the bottom fixed mounting of sliding plate 5 has stopper 21, the bottom fixed mounting of stopper 21 has dull polish plate 22, all rotate on two second poles 14 and install the dwang 23 that the slope symmetry set up, the one end that two dwang 23 kept away from each other all rotates and installs rotation seat 24, and two rotate one end that seat 24 kept away from each other and be close to one side fixed connection each other with two corresponding second poles 14 respectively, the equal fixed mounting in one side that two fixed columns 2 are close to each other has embedded plate 25, embedded groove 26 has all been seted up to the one end that two embedded plates 25 are close to each other, equal slidable mounting has embedded rod 27 in two embedded grooves 26, the one end that two embedded rods 27 are close to each other extends to the outside of corresponding embedded plate 25 respectively and with the two corresponding boards 19 are kept away from each other One side of the two fixed columns 2 is fixedly connected, the same transverse plate 41 is fixedly installed on one side of each of the two fixed columns 2, the top of each transverse plate 41 is provided with a moving groove 28, the moving plates 29 are slidably installed in the two moving grooves 28, the sides, close to each other, of the two moving plates 29 are provided with first grooves 30, the first grooves 30 are slidably installed with first plates 31, the bottoms of the two first plates 31 are fixedly installed with first magnets 32, the sides, close to each other, of the two moving plates 29 are fixedly installed with second magnets 33, the two second magnets 33 are respectively adsorbed to the corresponding first magnets 32, the tops of the two first plates 31 are respectively fixedly installed with vertical plates 34, the two vertical plates 34 are respectively slidably installed with sliding rods 35, the sides, close to each other, of the two moving plates 29 are respectively provided with clamping grooves 36, and the ends, far away from each other, of the two sliding rods 35 are respectively clamped to the corresponding clamping grooves 36, the equal fixed mounting in one end that two slide bars 35 are close to each other has pull rod 37, the equal fixed mounting in one side that two pull rods 37 are close to each other has the cover to establish the spacing spring 38 in the slide bars 35 outside, the one end that two spacing springs 38 kept away from each other is respectively with the one side fixed connection that two corresponding risers 34 are close to each other, third hole 39 has all been seted up on two first boards 31, equal slidable mounting has third pole 40 in two third holes 39, and the top of third pole 40 and bottom respectively with the top inner wall and the bottom inner wall fixed connection of corresponding first groove 30, the second spout has all been seted up on the bottom inner wall of two shifting chutes 28, the equal fixed mounting in bottom of two movable plates 29 has the second slider, and two second sliders respectively with corresponding second spout sliding connection.

On the basis of embodiment 1, as shown in fig. 3, fourth holes are formed in the two second sliding blocks, fourth rods are slidably mounted in the two fourth holes, and two ends of each fourth rod are fixedly connected with the inner wall of one side of the corresponding second sliding chute.

On the basis of embodiment 2, as shown in fig. 4, there are a plurality of card slots 36, and the plurality of card slots 36 are vertically distributed on moving plate 29 at equal intervals.

On the basis of embodiment 3, as shown in fig. 5, the top inner wall and the bottom inner wall of the insertion groove 26 are both provided with third sliding grooves.

On the basis of the embodiment, as shown in the figure, the top and the bottom of the embedding rod 27 are both fixedly provided with third sliding blocks, and the two third sliding blocks are respectively connected with the corresponding third sliding chutes in a sliding manner.

A quick inflation device for gas mold production:

the working principle is as follows: firstly, the air mould is placed on the transverse plate 41, then the push rod motor 7 is started, the push rod motor 7 is controlled by a control switch, the push rod motor 7 is powered by commercial power, an output shaft of the push rod motor 7 drives the sliding plate 5 to move, the sliding plate 5 drives the two connecting rods 9 to move, the two connecting rods 9 drive the two rotating rods 23 to move, because the two rotating seats 24 are fixed, the two rotating seats 24 drive the two rotating rods 23 to rotate, the two rotating rods 23 drive the two connecting rods 9 to move, the two connecting rods 9 compress the two limiting springs 12, the two limiting springs 12 absorb energy, meanwhile, the two connecting rods 9 drive the two spreading plates 19 to move, the two spreading plates 19 drive the plurality of bristles 20 to move, the plurality of bristles 20 spread the air mould, meanwhile, the sliding plate 5 drives the limiting block 21 to move, the limiting block 21 drives the spreading plate 22 to move, the pressing plate 22 presses the air mold, then the two pull rods 37 are pulled, the two pull rods 37 stretch the two limiting springs 38, the two limiting springs 38 absorb energy, meanwhile, the two pull rods 37 drive the two sliding rods 35 to move, the two sliding rods 35 are moved out of the clamping grooves 36, then the two moving plates 29 are moved, the two moving plates 29 drive the two second sliders to move, when the two moving plates 29 move to proper positions, the two moving plates 31 are moved, the two moving plates 31 drive the two first magnets 32 to move, the two first magnets 32 and the two first magnets 33 fix the air mold, when the air mold is fixed, the pull rods 37 are loosened, the sliding rods 35 are clamped into the clamping grooves 36 under the spring resilience action force of the limiting springs 38, the first plates 31 are fixed, and the air mold can be quickly and conveniently pressed and flattened, after being flattened, the air mould is fixed, the inflation speed of the air mould is increased, the working efficiency is improved, and therefore the requirements of people are met.

It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Claims

1. A quick inflation device for gas mold production comprises a fixed plate (1) and is characterized in that fixed columns (2) are fixedly mounted on two sides of the fixed plate (1), first sliding grooves (3) are formed in one sides, close to each other, of the two fixed columns (2), first sliding blocks (4) are slidably mounted in the two first sliding grooves (3), one ends, close to each other, of the two first sliding blocks (4) extend to the outer sides of the corresponding fixed columns (2) respectively and are fixedly provided with a same sliding plate (5), a fixed hole (6) is formed in the fixed plate (1), a push rod motor (7) is fixedly mounted at the top of the fixed plate (1), an output shaft of the push rod motor (7) penetrates through the fixed hole (6) to extend to the lower portion of the fixed plate (1) and is fixedly connected with the top of the sliding plate (5), two connecting holes (8) are formed in the sliding plate (5), connecting rods (9) are slidably mounted in the two connecting holes (8), first holes (10) are formed in the two connecting rods (9), first rods (11) are slidably mounted in the two first holes (10), two ends of each first rod (11) are fixedly connected with the inner wall of one side of the corresponding connecting hole (8), return springs (12) sleeved outside the first rods (11) are fixedly mounted on the sides, far away from each other, of the two return springs (12) are fixedly connected with the inner wall of one side of the corresponding connecting hole (8), two second holes (13) are formed in the sliding plate (5), second rods (14) are slidably mounted in the two second holes (13), fixed blocks (15) are fixedly mounted on the sides, close to each other, of the two fixed columns (2), and the top ends of the two second rods (14) extend to the upper side of the sliding plate (5) and are fixedly connected with the corresponding fixed blocks (15), the bottom of two second poles (14) all extends to the below of sliding plate (5) and fixed mounting has installation piece (16), the equal fixed mounting in one side that two installation pieces (16) are close to each other has places board (17), place and seted up on board (17) and place mouth (18), and the bottom of two connecting rods (9) all runs through and places mouth (18) and extend to the below of placing board (17) and fixed mounting have a stand flat board (19), the equal fixed mounting in bottom of two stand flat boards (19) has brush hair (20), the bottom fixed mounting of sliding plate (5) has stopper (21), the bottom fixed mounting of stopper (21) has pressure flat board (22), all rotate on two second poles (14) and install dwang (23) that the slope symmetry set up, the one end that two dwang (23) kept away from each other all rotates and installs rotation seat (24), and the one end that two rotation seats (24) kept away from each other respectively with two corresponding second poles (14) are close to each other one side firmly Decide the connection, the equal fixed mounting in one side that two fixed columns (2) are close to each other has embedded board (25), and embedded groove (26) have all been seted up to the one end that two embedded boards (25) are close to each other, and equal slidable mounting has embedding pole (27) in two embedded grooves (26), and the one end that two embedding poles (27) are close to each other extends to the outside of corresponding embedded board (25) respectively and with the one side fixed connection that two corresponding stand out flat board (19) and keep away from each other.

2. The rapid inflation device for gas mold production according to claim 1, wherein one side of each of the two fixed columns (2) is fixedly provided with a transverse plate (41), the top of each transverse plate (41) is provided with a moving groove (28), the two moving grooves (28) are respectively provided with a moving plate (29) in a sliding manner, one side of each of the two moving plates (29) close to each other is provided with a first groove (30), the two first grooves (30) are respectively provided with a first plate (31) in a sliding manner, the bottoms of the two first plates (31) are respectively fixedly provided with a first magnet (32), one side of each of the two moving plates (29) close to each other is respectively fixedly provided with a second magnet (33), and the two second magnets (33) are respectively adsorbed to the corresponding first magnets (32).

3. The rapid inflation device for gas mold production according to claim 2, wherein the top of each of the two first plates (31) is fixedly provided with a vertical plate (34), each of the two vertical plates (34) is slidably provided with a sliding rod (35), one side of each of the two movable plates (29) close to each other is provided with a clamping groove (36), one end of each of the two sliding rods (35) far away from each other is respectively clamped with the corresponding clamping groove (36), one end of each of the two sliding rods (35) close to each other is fixedly provided with a pull rod (37), one side of each of the two pull rods (37) close to each other is fixedly provided with a limiting spring (38) sleeved outside the sliding rod (35), one end of each of the two limiting springs (38) far away from each other is respectively fixedly connected with one side of each of the two corresponding vertical plates (34) close to each other, each of the two first plates (31) is provided with a third hole (39), third rods (40) are arranged in the two third holes (39) in a sliding mode, and the top ends and the bottom ends of the third rods (40) are fixedly connected with the top inner wall and the bottom inner wall of the corresponding first groove (30) respectively.

4. The rapid inflation equipment for gas mold production according to claim 2, wherein the inner walls of the bottoms of the two moving grooves (28) are respectively provided with a second sliding groove, the bottoms of the two moving plates (29) are respectively fixedly provided with a second sliding block, and the two second sliding blocks are respectively connected with the corresponding second sliding grooves in a sliding manner.

5. The rapid inflation device for gas mold production according to claim 4, wherein the two second sliding blocks are respectively provided with a fourth hole, a fourth rod is slidably mounted in each of the two fourth holes, and two ends of each fourth rod are respectively fixedly connected with the inner wall of one side of the corresponding second sliding groove.

6. The rapid inflation device for gas mold production according to claim 3, wherein the number of the locking grooves (36) is plural, and the plural locking grooves (36) are vertically distributed on the moving plate (29) at equal intervals.

7. The rapid inflation device for gas mold production according to claim 1, wherein the top inner wall and the bottom inner wall of the insertion groove (26) are provided with third sliding grooves.

8. The rapid inflation device for gas mold production according to claim 1, wherein the top and the bottom of the embedding rod (27) are fixedly provided with third sliding blocks, and the two third sliding blocks are respectively connected with the corresponding third sliding grooves in a sliding manner.