阅读说明：本技术 焦罐八角梁导向座固定结构及其方法 (Coke pot octagonal beam guide seat fixing structure and method thereof ) 是由 王国能 彭望 吴惑 孔祥凤 胡旗显 向前勇 倪乾刚 于 2021-08-23 设计创作，主要内容包括：本发明公开了焦罐八角梁导向座固定结构及其方法,包括底座,所述底座的内部开设有传动槽,所述传动槽的内部设置有定位机构,所述底座顶部的两端均固定连接有U型固定框,所述U型固定框内壁的底部均固定安装有两个第二液压缸,所述第二液压缸的活塞杆均固定连接有推动板,所述推动板均与对应的U型固定框的内壁滑动连接,所述U型固定框顶部的两端均开设有限位槽,本发明结构紧凑,操作简单便捷,实用性强,通过在底座的内部设置定位机构,能够代替螺钉对焦罐八角梁导向座的底部进行定位,同时通过在设备的顶部设置支撑机构,能够对焦罐八角梁导向座的顶部进行夹持固定,从而极大的提高了对焦罐八角梁导向座的安装稳定性,有利于实际的应用。(The invention discloses a coke pot octagonal beam guide seat fixing structure and a method thereof, and the coke pot octagonal beam guide seat fixing structure comprises a base, wherein a transmission groove is formed in the base, a positioning mechanism is arranged in the transmission groove, two ends of the top of the base are fixedly connected with U-shaped fixing frames, two second hydraulic cylinders are fixedly arranged at the bottoms of the inner walls of the U-shaped fixing frames, piston rods of the second hydraulic cylinders are fixedly connected with pushing plates, the pushing plates are respectively and slidably connected with the inner walls of the corresponding U-shaped fixing frames, and two ends of the top of the U-shaped fixing frame are respectively provided with a limiting groove. Thereby very big improvement focus jar octagonal beam guide holder's installation stability, be favorable to practical application.)

1. A coke pot octagonal beam guide seat fixing structure comprises a base (1) and is characterized in that a transmission groove (2) is formed in the base (1), a positioning mechanism (3) is arranged in the transmission groove (2), two ends of the top of the base (1) are fixedly connected with U-shaped fixing frames (4), two second hydraulic cylinders (5) are fixedly mounted at the bottom of the inner wall of each U-shaped fixing frame (4), piston rods of the second hydraulic cylinders (5) are fixedly connected with push plates (6), the push plates (6) are slidably connected with the inner walls of the corresponding U-shaped fixing frames (4), limiting grooves (7) are formed in two ends of the top of each U-shaped fixing frame (4), a moving bottom plate (8) is slidably connected to the top of each U-shaped fixing frame (4), and limiting blocks (9) are fixedly connected to two ends of the bottom of the moving bottom plate (8), the bottom of stopper (9) all runs through corresponding spacing groove (7) and with spacing groove (7) sliding connection, equal fixedly connected with first return spring (10) between the outside of stopper (9) and the inner wall of the fixed frame of U type (4), the top of removing bottom plate (8) all is provided with supporting mechanism (11).

2. The coke oven octagonal beam guide seat fixing structure as claimed in claim 1, wherein the positioning mechanism (3) comprises a sliding plate (31), the inside of the transmission groove (2) is slidably connected with the sliding plate (31), both ends of the top of the sliding plate (31) are fixedly connected with positioning plates (32), the tops of the positioning plates (32) extend to the top of the base (1), both ends of the bottom of the sliding plate (31) are rotatably connected with rotating rods (33), both sides of the inner wall of the transmission groove (2) are fixedly provided with first hydraulic cylinders (34), the bottom of the inner wall of the transmission groove (2) and one side of the first hydraulic cylinders (34) are respectively provided with a sliding groove (35), piston rods of the first hydraulic cylinders (34) are respectively fixedly connected with a sliding block (36), the bottoms of the sliding blocks (36) extend to the inside of the corresponding sliding grooves (35) and are slidably connected with the sliding grooves (35), the bottoms of the rotating rods (33) are rotatably connected with the corresponding sliding blocks (36).

3. The coke oven octagonal beam guide seat fixing structure as claimed in claim 2, wherein the supporting mechanism (11) comprises vertical plates (111), one end of each of the two movable bottom plates (8) close to the top is fixedly connected with the vertical plate (111), an inclined plate (112) is fixedly connected between one side of the top of the vertical plate (111) and the top of the movable bottom plate (8), four fixing rods (113) are fixedly connected to one side of the inclined plate (112) close to the vertical plate (111), one end of each fixing rod (113) far away from the inclined plate (112) is fixedly connected with a fixing plate (114), one side of each fixing plate (114) far away from the fixing rod (113) is fixedly connected with the corresponding vertical plate (111), one side of each vertical plate (111) far away from the inclined plate (112) is fixedly connected with two U-shaped fixing frames (116), and two sliding sleeves (117) are slidably connected to the outer sides of the U-shaped fixing frames (116), correspond two equal fixedly connected with buffer plate (118) between sliding sleeve (117), impartial apart from fixedly connected with second return spring (119) between buffer plate (118) and the vertical board (111) that corresponds, two slide bars (1110) of the equal fixedly connected with in one side of second return spring (119) are kept away from in buffer plate (118), the one end that buffer plate (118) were kept away from in slide bar (1110) all runs through corresponding U type mount (116), equal fixedly connected with backup pad (1111) between the one end of buffer plate (118) is kept away from in slide bar (1110).

4. The coke pot octagonal beam guide base fixing structure as claimed in claim 1, characterized in that both ends of the bottom of the base (1) are fixedly connected with mounting plates (12), and both ends of the top of the mounting plates (12) are provided with mounting holes (13).

5. The coke tank octagonal beam guide seat fixing structure as claimed in claim 1, wherein the limiting blocks (9) are all arranged in a trapezoidal structure, the ends, far away from the first return springs (10), of the tops of the pushing plates (6) are all provided with inclined planes matched with the limiting blocks (9), and the inclined planes of the tops of the pushing plates (6) are all in sliding connection with the inclined planes of the bottoms of the corresponding limiting blocks (9).

6. The coke oven octagonal beam guide seat fixing structure as claimed in claim 3, wherein the bottom of the positioning plate (32) and one side of the supporting plate (1111) far away from the sliding rod (1110) are both provided with a protective pad.

7. The eight angle roof beam guide fixed knot of coke drum constructs of claim 2, characterized in that, the outside fixed mounting of base (1) has control panel (14), first pneumatic cylinder (34), second pneumatic cylinder (5) all with control panel (14) electric connection.

8. The coke oven octagonal beam guide base fixing structure as claimed in claim 3, wherein a first reinforcing plate (115) is fixedly connected between the outer side of the fixing rod (113) and the outer side of the fixing plate (114) at equal intervals, and a second reinforcing plate (1112) is fixedly connected between the outer side of the sliding rod (1110) and the outer side of the supporting plate (1111) at equal intervals.

9. The method for fixing the octagonal beam guide seat of the coke oven according to any one of claims 1 to 8, which is characterized by comprising the following steps:

s1, firstly, placing the equipment at a specified position, then fixing the base (1) at the specified position by using the mounting plate (12) and the mounting hole (13), then placing the coke pot octagonal beam guide seat to be fixed between two U-shaped fixed frames (4), and placing the bottom of the guide seat between the bottoms of two positioning plates (32);

s2, controlling a first hydraulic cylinder (34) to work through a control panel (14), respectively pulling corresponding sliding blocks (36) to move towards two sides in a sliding groove (35) so as to drive a rotating rod (33) to rotate, driving a sliding plate (31) to move downwards in a transmission groove (2) under the action of the rotating rod (33), simultaneously driving two positioning plates (32) to move downwards, and further pressing and fixing the bottom of the octagonal beam guide seat of the focusing tank through the positioning plates (32);

s3, then accessible control panel (14) control second pneumatic cylinder (5) work, promote corresponding pushing plate (6) rebound, cooperation through between the inclined plane, promote two stopper (9) simultaneously to the centre removal respectively, and extrude first return spring (10), and then drive and remove bottom plate (8) and vertical board (111) to the centre removal, thereby drive backup pad (1111) to the centre removal, support fixedly through two backup pad (1111) focusing tank eight-angle beam guide holder 'S top, cooperate slide bar (1110) simultaneously, buffer board (118), sliding sleeve (117) and second return spring (119)' S effect, compress tightly the buffering to backup pad (1111), can accomplish the fixing of focusing tank eight-angle beam guide holder this moment.

Technical Field

The invention belongs to the field of fixing structures, and particularly relates to a fixing structure and a fixing method for an octagonal beam guide seat of a coke oven.

Background

In the prior life, dry quenching is a quenching method for extinguishing red hot coke by adopting inert gas, the dry quenching can recycle the sensible heat of red coke, improve the quality of the coke and reduce the pollution of the quenching operation to the environment, the principle is that the red coke is cooled by cold inert gas, the inert gas absorbing the heat of the red coke is taken as secondary energy, the heat is given out in heat exchange equipment to be cooled again, the cold inert gas is used for cooling the red coke, the cooling speed of the coke is related to the coke density in the heat exchange process and mainly depends on the temperature of the inert gas and the speed of the inert gas passing through a coke layer, although the structural forms of dry quenching devices are different, the process flow is basically consistent, mature red coke is pushed into a coke tank from a carbonization chamber, the coke tank filled with the red coke is transported to a lifting tower by a coke tank truck, lifted to the top of a dry quenching tank by a lifter, and the red coke is filled into the dry quenching tank, the coke is cooled to below 250 ℃ by countercurrent heat exchange with cold inert gas in a cooling chamber, the cooled coke is discharged to a rubber belt conveyor from a coke discharging device at the bottom of a dry quenching tank and is conveyed to a user, the cold inert gas is conveyed to the dry quenching tank by a circulating fan, the temperature is raised to about 800 ℃ after heat exchange with red coke, the hot inert gas passes through a primary dust remover to remove coarse-grained coke powder carried in the gas and then enters a waste heat boiler, the gas temperature at the outlet of the boiler is reduced to below 200 ℃, then passes through a secondary dust remover to remove fine-grained coke powder in the gas and then is conveyed back to the dry quenching tank by the circulating fan for recycling, in the processes, a coke tank is one of important devices, when the coke tank is used, an octagonal beam is generally arranged on the outer side of the coke tank, and a guide seat is arranged on the outer side of the octagonal beam and used for guiding the coke tank.

But coke tank eight angle beam guide holder is mostly through the mounting screw on the ingot roof beam of bottom in prior art, and the mode through the mounting screw makes and is connected enough stably between bottom and the ingot roof beam of coke tank eight angle beam guide holder, but the top of coke tank eight angle beam guide holder lacks fixed knot to it and fixes to lead to it when using, the fixed unstable condition in top appears easily and takes place, is unfavorable for practical application.

The invention content is as follows:

the invention aims to solve the problems in the prior art by providing a fixing structure of an octagonal beam guide seat of a coke oven and a method thereof.

In order to solve the above problems, the present invention provides a technical solution:

the fixing structure of the guide seat of the octagonal beam of the coke tank comprises a base, wherein a transmission groove is formed in the base, a positioning mechanism is arranged in the transmission groove, U-shaped fixed frames are fixedly connected at two ends of the top of the base, two second hydraulic cylinders are fixedly arranged at the bottoms of the inner walls of the U-shaped fixed frames, piston rods of the second hydraulic cylinders are fixedly connected with push plates, the push plates are respectively connected with the inner walls of the corresponding U-shaped fixed frames in a sliding manner, limiting grooves are formed at two ends of the top of each U-shaped fixed frame, a movable bottom plate is respectively and slidably connected at the top of each U-shaped fixed frame, limiting blocks are respectively and fixedly connected at two ends of the bottom of the movable bottom plate, the bottoms of the limiting blocks respectively penetrate through the corresponding limiting grooves and are slidably connected with the limiting grooves, and first return springs are respectively and fixedly connected between the outer sides of the limiting blocks and the inner walls of the U-shaped fixed frames, and the top of the movable bottom plate is provided with a supporting mechanism.

As preferred, positioning mechanism includes the slide, the inside sliding connection of drive groove has the slide, the equal fixedly connected with locating plate in both ends at slide top, the top of locating plate all extends to the top of base, the both ends of slide bottom all rotate and are connected with the dwang, the equal fixed mounting in both sides of drive groove inner wall has first pneumatic cylinder, the spout has all been seted up to the bottom of drive groove inner wall and the one side that is located first pneumatic cylinder, the equal fixedly connected with slider of piston rod of first pneumatic cylinder, the bottom of slider all extend to the inside of the spout that corresponds and with spout sliding connection, the bottom of dwang all rotates with the slider that corresponds to be connected.

Preferably, the supporting mechanism comprises vertical plates, one ends of the two moving bottom plates, which are close to the tops, are fixedly connected with the vertical plates, inclined plates are fixedly connected between one sides of the tops of the vertical plates and the tops of the moving bottom plates, four fixing rods are fixedly connected to one sides of the inclined plates, which are close to the vertical plates, one ends of the fixing rods, which are far away from the inclined plates, are fixedly connected with fixed plates, one sides of the fixed plates, which are far away from the fixing rods, are fixedly connected with the corresponding vertical plates, one sides of the vertical plates, which are far away from the inclined plates, are fixedly connected with two U-shaped fixing frames, the outer sides of the U-shaped fixing frames are respectively and slidably connected with two sliding sleeves, buffer plates are respectively and fixedly connected between the corresponding two sliding sleeves, second return springs are respectively and equidistantly fixedly connected between the buffer plates and the corresponding vertical plates, and one sides of the buffer plates, which are far away from the second return springs, are respectively and fixedly connected with two sliding rods, the one end that the buffer board was kept away from to the slide bar all runs through corresponding U type mount, equal fixedly connected with backup pad between the one end that the buffer board was kept away from to the slide bar.

Preferably, the two ends of the bottom of the base are fixedly connected with mounting plates, and the two ends of the top of each mounting plate are provided with mounting holes.

Preferably, the limiting blocks are all arranged to be of a trapezoidal structure, one end, away from the first return spring, of the top of the pushing plate is provided with an inclined plane matched with the limiting blocks, and the inclined plane at the top of the pushing plate is connected with the inclined plane at the bottom of the corresponding limiting blocks in a sliding mode.

Preferably, the bottom of the positioning plate and one side of the supporting plate, which is far away from the sliding rod, are provided with protective pads.

Preferably, a control panel is fixedly mounted on the outer side of the base, and the first hydraulic cylinder and the second hydraulic cylinder are electrically connected with the control panel.

Preferably, equal-distance fixedly connected with first reinforcing plates are arranged between the outer sides of the fixing rods and the outer sides of the fixing plates, and equal-distance fixedly connected with second reinforcing plates are arranged between the outer sides of the sliding rods and the outer sides of the supporting plates.

The fixing method of the guide seat of the octagonal beam of the coke pot comprises the following steps:

s1, firstly, placing the equipment at a specified position, then fixing the base at the specified position by using the mounting plate and the mounting hole, then placing the coke pot octagonal beam guide seat to be fixed between the two U-shaped fixed frames, and placing the bottom of the guide seat between the bottoms of the two positioning plates;

s2, controlling the first hydraulic cylinder to work through the control panel, respectively pulling the corresponding sliding blocks to move towards two sides in the sliding groove, so as to drive the rotating rod to rotate, driving the sliding plate to move downwards in the transmission groove under the action of the rotating rod, simultaneously driving the two positioning plates to move downwards, and further compressing and fixing the bottom of the octagonal beam guide seat of the focusing tank through the positioning plates;

s3, then accessible control panel control second pneumatic cylinder carries out work, promote corresponding slurcam rebound, cooperation through between the inclined plane, promote two stoppers respectively and remove to the centre simultaneously, and extrude first return spring, and then drive and remove bottom plate and vertical board and remove to the centre, thereby it removes to the centre to drive the backup pad, it is fixed to support the top of focusing jar octagon beam guide holder through two backup pads, cooperate the slide bar simultaneously, the buffer board, the effect of sliding sleeve and second return spring, compress tightly the backup pad and cushion, can accomplish the fixed of focusing jar octagon beam guide holder this moment.

The invention has the beneficial effects that: the locating mechanism is arranged in the base, the locating mechanism can replace a screw to locate the bottom of the focusing tank octagonal beam guide seat, and meanwhile, the supporting mechanism is arranged at the top of the equipment, so that the top of the focusing tank octagonal beam guide seat can be clamped and fixed, the mounting stability of the focusing tank octagonal beam guide seat is greatly improved, and the practical application is facilitated.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a schematic view of the support mechanism of the present invention;

fig. 4 is a schematic structural view of the push plate of the present invention.

In the figure: 1. a base; 2. a transmission groove; 3. a positioning mechanism; 31. a slide plate; 32. positioning a plate; 33. rotating the rod; 34. a first hydraulic cylinder; 35. a chute; 36. a slider; 4. a U-shaped fixing frame; 5. a second hydraulic cylinder; 6. a push plate; 7. a limiting groove; 8. moving the base plate; 9. a limiting block; 10. a first return spring; 11. a support mechanism; 111. a vertical plate; 112. a sloping plate; 113. fixing the rod; 114. a fixing plate; 115. a first reinforcing plate; 116. a U-shaped fixing frame; 117. a sliding sleeve; 118. a buffer plate; 119. a second return spring; 1110. a slide bar; 1111. a support plate; 1112. a second reinforcing plate; 12. mounting a plate; 13. mounting holes; 14. a control panel.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment:

example (b):

the fixing structure of the guide seat of the octagonal beam of the coke tank comprises a base 1, a transmission groove 2 is formed in the base 1, a positioning mechanism 3 is arranged in the transmission groove 2, two U-shaped fixing frames 4 are fixedly connected to two ends of the top of the base 1, two second hydraulic cylinders 5 are fixedly mounted at the bottoms of the inner walls of the U-shaped fixing frames 4, and the second hydraulic cylinders 5 can be conveniently and better mounted and fixed through the U-shaped fixing frames 4; piston rods of the second hydraulic cylinders 5 are fixedly connected with pushing plates 6, the pushing plates 6 are connected with the inner walls of the corresponding U-shaped fixing frames 4 in a sliding mode, and the pushing plates 6 can be controlled to slide up and down on the inner walls of the U-shaped fixing frames 4 conveniently through the second hydraulic cylinders 5; limiting grooves 7 are formed in two ends of the top of the U-shaped fixing frame 4, a moving bottom plate 8 is connected to the top of the U-shaped fixing frame 4 in a sliding mode, limiting blocks 9 are fixedly connected to two ends of the bottom of the moving bottom plate 8, the bottoms of the limiting blocks 9 penetrate through the corresponding limiting grooves 7 and are connected with the limiting grooves 7 in a sliding mode, movement of the limiting blocks 9 and the moving bottom plate 8 is limited through the limiting grooves 7, and position deviation of the limiting blocks 9 and the moving bottom plate 8 is prevented; a first return spring 10 is fixedly connected between the outer side of the limiting block 9 and the inner wall of the U-shaped fixed frame 4, and the limiting block 9 and the movable bottom plate 8 can be controlled to return better through the first return spring 10; and the top of the movable bottom plate 8 is provided with a supporting mechanism 11.

The positioning mechanism 3 comprises a sliding plate 31, the sliding plate 31 is connected inside the transmission groove 2 in a sliding manner, positioning plates 32 are fixedly connected to two ends of the top of the sliding plate 31, and the positioning plates 32 are both arranged to be L-shaped structures; the top of locating plate 32 all extends to base 1's top, the both ends of slide 31 bottom are all rotated and are connected with dwang 33, the equal fixed mounting in both sides of 2 inner walls in transmission groove has first pneumatic cylinder 34, spout 35 has all been seted up to the bottom of 2 inner walls in transmission groove and the one side that is located first pneumatic cylinder 34, the equal fixedly connected with slider 36 of piston rod of first pneumatic cylinder 34, slider 36's bottom all extends to the inside of the spout 35 that corresponds and with spout 35 sliding connection, the bottom of dwang 33 all rotates with the slider 36 that corresponds to be connected, through setting up positioning mechanism 3, is convenient for the better bottom structure to burnt jar octagon guide holder compresses tightly the location.

Wherein, the supporting mechanism 11 comprises vertical plates 111, one end of each of two adjacent movable bottom plates 8 is fixedly connected with the vertical plate 111, one side of the top of the vertical plate 111 and the top of the movable bottom plate 8 are fixedly connected with inclined plates 112, one side of each of the inclined plates 112 adjacent to the vertical plate 111 is fixedly connected with four fixing rods 113, one end of each of the fixing rods 113 far away from the inclined plate 112 is fixedly connected with a fixing plate 114, one side of each of the fixing plates 114 far away from the fixing rods 113 is fixedly connected with the corresponding vertical plate 111, one side of each of the vertical plates 111 far away from the inclined plates 112 is fixedly connected with two U-shaped fixing frames 116, the outer sides of the U-shaped fixing frames 116 are respectively connected with two sliding sleeves 117 in a sliding manner, a buffer plate 118 is fixedly connected between the corresponding two sliding sleeves 117, and second return springs 119 are fixedly connected between the buffer plates 118 and the corresponding vertical plates 111 at equal intervals, two slide bars 1110 of the equal fixedly connected with in one side that second return spring 119 was kept away from to buffer board 118, the one end that buffer board 118 was kept away from to slide bar 1110 all runs through corresponding U type mount 116, equal fixedly connected with backup pad 1111 between the one end that buffer board 118 was kept away from to slide bar 1110, through setting up supporting mechanism 11, the top of being convenient for better focusing jar octagon beam guide holder supports fixedly to further improvement focuses the installation stability of jar octagon beam guide holder.

Wherein, the equal fixedly connected with mounting panel 12 in both ends of base 1 bottom, mounting hole 13 has all been seted up at the both ends at mounting panel 12 top, through mounting panel 12 and mounting hole 13, be convenient for better to the whole installation of equipment fixed.

Wherein, stopper 9 all sets up to trapezium structure, the one end that first return spring 10 was kept away from at the top of slurcam 6 all is provided with the inclined plane of mutually supporting with stopper 9, the inclined plane at slurcam 6 top all with the inclined plane sliding connection of the stopper 9 bottom that corresponds, mutually support through slurcam 6 and stopper 9, be convenient for better completion power transmission operation.

Wherein, the bottom of locating plate 32 all is provided with the protection pad with one side that slide bar 1110 was kept away from to backup pad 1111, through setting up the protection pad, is convenient for better carry out the eight corner beam guide brackets of coke drum that fix to needs and protects.

Wherein, the outside fixed mounting of base 1 has control panel 14, first pneumatic cylinder 34, second pneumatic cylinder 5 all with control panel 14 electric connection, be convenient for better control first pneumatic cylinder 34 and second pneumatic cylinder 5 through control panel 14.

Wherein, equal equidistance fixedly connected with first reinforcing plate 115 between the outside of dead lever 113 and the outside of fixed plate 114, equal equidistance fixedly connected with second reinforcing plate 1112 between the outside of slide bar 1110 and the outside of backup pad 1111, be convenient for better increase the stability of being connected between dead lever 113 and the fixed plate 114 through first reinforcing plate 115, be convenient for better increase the stability of being connected between slide bar 1110 and the backup pad 1111 through second reinforcing plate 1112.

The fixing method of the guide seat of the octagonal beam of the coke pot comprises the following steps:

s1, firstly, placing the equipment at a specified position, then fixing the base 1 at the specified position by using the mounting plate 12 and the mounting hole 13, then placing the coke pot octagonal beam guide seat to be fixed between two U-shaped fixed frames 4, and placing the bottom of the guide seat between the bottoms of two positioning plates 32;

s2, controlling the first hydraulic cylinder 34 to work through the control panel 14, respectively pulling the corresponding sliding blocks 36 to move towards two sides in the sliding groove 35, so as to drive the rotating rod 33 to rotate, driving the sliding plate 31 to move downwards in the transmission groove 2 under the action of the rotating rod 33, simultaneously driving the two positioning plates 32 to move downwards, and further compressing and fixing the bottom of the octagonal beam guide seat of the focusing tank through the positioning plates 32;

s3, then accessible control panel 14 control second pneumatic cylinder 5 carries out work, promote corresponding pushing plate 6 rebound, cooperation through between the inclined plane, promote two stopper 9 simultaneously to the centre removal respectively, and extrude first return spring 10, and then drive and remove bottom plate 8 and vertical board 111 to the centre removal, thereby drive backup pad 1111 to the centre removal, it is fixed to support the top of focus jar octagon beam guide holder through two backup pads 1111, cooperate slide bar 1110 simultaneously, buffer board 118, the effect of sliding sleeve 117 and second return spring 119, compress tightly of backup pad 1111 and cushion, can accomplish the fixed of focus jar octagon beam guide holder this moment.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.